Install github api

.gitignore

@@ -1,11 +1,5 @@
-/vendor/*
+/vendor/squizlabs/php_codesniffer
-!/vendor/autoload.php
+/vendor/dealerdirect/phpcodesniffer-composer-installer
-!/vendor/embed
-!/vendor/embed/embed
-!/vendor/laminas
-!/vendor/laminas/laminas-diactoros
-!/vendor/grandel
-!/vendor/grandel/include-directory
 
 /node_modules/*
 !/node_modules/jquery

composer.json

@@ -5,6 +5,9 @@
     "require": {
         "embed/embed": "^4.3",
         "laminas/laminas-diactoros": "^2.8",
-        "grandel/include-directory": "^0.2.2"
+        "grandel/include-directory": "^0.2.2",
+        "knplabs/github-api": "^3.4",
+        "guzzlehttp/guzzle": "^7.4",
+        "http-interop/http-factory-guzzle": "^1.2"
     }
 }

vendor/clue/stream-filter/.github/FUNDING.yml

@@ -0,0 +1,2 @@
+github: clue
+custom: https://clue.engineering/support

vendor/clue/stream-filter/CHANGELOG.md

@@ -0,0 +1,75 @@
+# Changelog
+
+## 1.5.0 (2020-10-02)
+
+*   Feature: Improve performance by using global imports.
+    (#38 by @clue)
+
+*   Improve API documentation and add support / sponsorship info.
+    (#30 by @clue and #35 by @SimonFrings)
+
+*   Improve test suite and add `.gitattributes` to exclude dev files from exports.
+    Prepare PHP 8 support, update to PHPUnit 9 and simplify test matrix.
+    (#32 and #37 by @clue and #34 and #36 by @SimonFrings)
+
+## 1.4.1 (2019-04-09)
+
+*   Fix: Check if the function is declared before declaring it.
+    (#23 by @Niko9911)
+
+*   Improve test suite to also test against PHP 7.2 and
+    add test for base64 encoding and decoding filters.
+    (#22 by @arubacao and #25 by @Nyholm and @clue)
+
+## 1.4.0 (2017-08-18)
+
+*   Feature / Fix: The `fun()` function does not pass filter parameter `null`
+    to underlying `stream_filter_append()` by default
+    (#15 by @Nyholm)
+
+    Certain filters (such as `convert.quoted-printable-encode`) do not accept
+    a filter parameter at all. If no explicit filter parameter is given, we no
+    longer pass a default `null` value.
+
+    ```php
+    $encode = Filter\fun('convert.quoted-printable-encode');
+    assert('t=C3=A4st' === $encode('täst'));
+    ```
+
+*   Add examples and improve documentation
+    (#13 and #20 by @clue and #18 by @Nyholm)
+
+*   Improve test suite by adding PHPUnit to require-dev,
+    fix HHVM build for now again and ignore future HHVM build errors,
+    lock Travis distro so new future defaults will not break the build
+    and test on PHP 7.1
+    (#12, #14 and #19 by @clue and #16 by @Nyholm)
+
+## 1.3.0 (2015-11-08)
+
+*   Feature: Support accessing built-in filters as callbacks
+    (#5 by @clue)
+
+    ```php
+    $fun = Filter\fun('zlib.deflate');
+
+    $ret = $fun('hello') . $fun('world') . $fun();
+    assert('helloworld' === gzinflate($ret));
+    ```
+
+## 1.2.0 (2015-10-23)
+
+* Feature: Invoke close event when closing filter (flush buffer)
+  (#9 by @clue)
+
+## 1.1.0 (2015-10-22)
+
+* Feature: Abort filter operation when catching an Exception
+  (#10 by @clue)
+
+* Feature: Additional safeguards to prevent filter state corruption
+  (#7 by @clue)
+
+## 1.0.0 (2015-10-18)
+
+* First tagged release

vendor/clue/stream-filter/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/clue/stream-filter/README.md

@@ -0,0 +1,323 @@
+# clue/stream-filter [![Build Status](https://travis-ci.org/clue/php-stream-filter.svg?branch=master)](https://travis-ci.org/clue/php-stream-filter)
+
+A simple and modern approach to stream filtering in PHP
+
+**Table of contents**
+
+* [Why?](#why)
+* [Support us](#support-us)
+* [Usage](#usage)
+  * [append()](#append)
+  * [prepend()](#prepend)
+  * [fun()](#fun)
+  * [remove()](#remove)
+* [Install](#install)
+* [Tests](#tests)
+* [License](#license)
+
+## Why?
+
+PHP's stream filtering system is great!
+
+It offers very powerful stream filtering options and comes with a useful set of built-in filters.
+These filters can be used to easily and efficiently perform various transformations on-the-fly, such as:
+
+* read from a gzip'ed input file,
+* transcode from ISO-8859-1 (Latin1) to UTF-8,
+* write to a bzip output file
+* and much more.
+
+But let's face it:
+Its API is [*difficult to work with*](https://www.php.net/manual/en/php-user-filter.filter.php)
+and its documentation is [*subpar*](https://stackoverflow.com/questions/27103269/what-is-a-bucket-brigade).
+This combined means its powerful features are often neglected.
+
+This project aims to make these features more accessible to a broader audience.
+* **Lightweight, SOLID design** -
+  Provides a thin abstraction that is [*just good enough*](https://en.wikipedia.org/wiki/Principle_of_good_enough)
+  and does not get in your way.
+  Custom filters require trivial effort.
+* **Good test coverage** -
+  Comes with an automated tests suite and is regularly tested in the *real world*
+
+## Support us
+
+We invest a lot of time developing, maintaining and updating our awesome
+open-source projects. You can help us sustain this high-quality of our work by
+[becoming a sponsor on GitHub](https://github.com/sponsors/clue). Sponsors get
+numerous benefits in return, see our [sponsoring page](https://github.com/sponsors/clue)
+for details.
+
+Let's take these projects to the next level together! 🚀
+
+## Usage
+
+This lightweight library consists only of a few simple functions.
+All functions reside under the `Clue\StreamFilter` namespace.
+
+The below examples assume you use an import statement similar to this:
+
+```php
+use Clue\StreamFilter as Filter;
+
+Filter\append(…);
+```
+
+Alternatively, you can also refer to them with their fully-qualified name:
+
+```php
+\Clue\StreamFilter\append(…);
+```
+
+As of PHP 5.6+ you can also import each required function into your code like this:
+
+```php
+use function Clue\StreamFilter\append;
+
+append(…);
+```
+
+### append()
+
+The `append(resource<stream> $stream, callable $callback, int $read_write = STREAM_FILTER_ALL): resource<stream filter>` function can be used to
+append a filter callback to the given stream.
+
+Each stream can have a list of filters attached.
+This function appends a filter to the end of this list.
+
+If the given filter can not be added, it throws an `Exception`.
+
+The `$stream` can be any valid stream resource, such as:
+
+```php
+$stream = fopen('demo.txt', 'w+');
+```
+
+The `$callback` should be a valid callable function which accepts 
+an individual chunk of data and should return the updated chunk:
+
+```php
+$filter = Filter\append($stream, function ($chunk) {
+    // will be called each time you read or write a $chunk to/from the stream
+    return $chunk;
+});
+```
+
+As such, you can also use native PHP functions or any other `callable`:
+
+```php
+Filter\append($stream, 'strtoupper');
+
+// will write "HELLO" to the underlying stream
+fwrite($stream, 'hello');
+```
+
+If the `$callback` accepts invocation without parameters,
+then this signature will be invoked once ending (flushing) the filter:
+
+```php
+Filter\append($stream, function ($chunk = null) {
+    if ($chunk === null) {
+        // will be called once ending the filter
+        return 'end';
+    }
+    // will be called each time you read or write a $chunk to/from the stream
+    return $chunk;
+});
+
+fclose($stream);
+```
+
+> Note: Legacy PHP versions (PHP < 5.4) do not support passing additional data
+from the end signal handler if the stream is being closed.
+
+If your callback throws an `Exception`, then the filter process will be aborted.
+In order to play nice with PHP's stream handling,
+the `Exception` will be transformed to a PHP warning instead:
+
+```php
+Filter\append($stream, function ($chunk) {
+    throw new \RuntimeException('Unexpected chunk');
+});
+
+// raises an E_USER_WARNING with "Error invoking filter: Unexpected chunk"
+fwrite($stream, 'hello');
+```
+
+The optional `$read_write` parameter can be used to only invoke the `$callback`
+when either writing to the stream or only when reading from the stream:
+
+```php
+Filter\append($stream, function ($chunk) {
+    // will be called each time you write to the stream
+    return $chunk;
+}, STREAM_FILTER_WRITE);
+
+Filter\append($stream, function ($chunk) {
+    // will be called each time you read from the stream
+    return $chunk;
+}, STREAM_FILTER_READ);
+```
+
+This function returns a filter resource which can be passed to [`remove()`](#remove).
+
+> Note that once a filter has been added to stream, the stream can no longer be passed to
+> [`stream_select()`](https://www.php.net/manual/en/function.stream-select.php)
+> (and family).
+>
+> > Warning: stream_select(): cannot cast a filtered stream on this system in {file} on line {line}
+>
+> This is due to limitations of PHP's stream filter support, as it can no longer reliably
+> tell when the underlying stream resource is actually ready.
+> As an alternative, consider calling `stream_select()` on the unfiltered stream and
+> then pass the unfiltered data through the [`fun()`](#fun) function.
+
+### prepend()
+
+The `prepend(resource<stream> $stream, callable $callback, int $read_write = STREAM_FILTER_ALL): resource<stream filter>` function can be used to
+prepend a filter callback to the given stream.
+
+Each stream can have a list of filters attached.
+This function prepends a filter to the start of this list.
+
+If the given filter can not be added, it throws an `Exception`.
+
+```php
+$filter = Filter\prepend($stream, function ($chunk) {
+    // will be called each time you read or write a $chunk to/from the stream
+    return $chunk;
+});
+```
+
+This function returns a filter resource which can be passed to [`remove()`](#remove).
+
+Except for the position in the list of filters, this function behaves exactly
+like the [`append()`](#append) function.
+For more details about its behavior, see also the [`append()`](#append) function.
+
+### fun()
+
+The `fun(string $filter, mixed $parameters = null): callable` function can be used to
+create a filter function which uses the given built-in `$filter`.
+
+PHP comes with a useful set of [built-in filters](https://www.php.net/manual/en/filters.php).
+Using `fun()` makes accessing these as easy as passing an input string to filter
+and getting the filtered output string.
+
+```php
+$fun = Filter\fun('string.rot13');
+
+assert('grfg' === $fun('test'));
+assert('test' === $fun($fun('test'));
+```
+
+Please note that not all filter functions may be available depending 
+on installed PHP extensions and the PHP version in use.
+In particular, [HHVM](https://hhvm.com/) may not offer the same filter functions
+or parameters as Zend PHP.
+Accessing an unknown filter function will result in a `RuntimeException`:
+
+```php
+Filter\fun('unknown'); // throws RuntimeException
+```
+
+Some filters may accept or require additional filter parameters – most
+filters do not require filter parameters.
+If given, the optional `$parameters` argument will be passed to the
+underlying filter handler as-is.
+In particular, note how *not passing* this parameter at all differs from
+explicitly passing a `null` value (which many filters do not accept).
+Please refer to the individual filter definition for more details.
+For example, the `string.strip_tags` filter can be invoked like this:
+
+```php
+$fun = Filter\fun('string.strip_tags', '<a><b>');
+
+$ret = $fun('<b>h<br>i</b>');
+assert('<b>hi</b>' === $ret);
+```
+
+Under the hood, this function allocates a temporary memory stream, so it's
+recommended to clean up the filter function after use.
+Also, some filter functions (in particular the
+[zlib compression filters](https://www.php.net/manual/en/filters.compression.php))
+may use internal buffers and may emit a final data chunk on close.
+The filter function can be closed by invoking without any arguments:
+
+```php
+$fun = Filter\fun('zlib.deflate');
+
+$ret = $fun('hello') . $fun('world') . $fun();
+assert('helloworld' === gzinflate($ret));
+```
+
+The filter function must not be used anymore after it has been closed.
+Doing so will result in a `RuntimeException`:
+
+```php
+$fun = Filter\fun('string.rot13');
+$fun();
+
+$fun('test'); // throws RuntimeException
+```
+
+> Note: If you're using the zlib compression filters, then you should be wary
+about engine inconsistencies between different PHP versions and HHVM.
+These inconsistencies exist in the underlying PHP engines and there's little we
+can do about this in this library.
+[Our test suite](tests/) contains several test cases that exhibit these issues.
+If you feel some test case is missing or outdated, we're happy to accept PRs! :)
+
+### remove()
+
+The `remove(resource<stream filter> $filter): bool` function can be used to
+remove a filter previously added via [`append()`](#append) or [`prepend()`](#prepend).
+
+```php
+$filter = Filter\append($stream, function () {
+    // …
+});
+Filter\remove($filter);
+```
+
+## Install
+
+The recommended way to install this library is [through Composer](https://getcomposer.org).
+[New to Composer?](https://getcomposer.org/doc/00-intro.md)
+
+This project follows [SemVer](https://semver.org/).
+This will install the latest supported version:
+
+```bash
+$ composer require clue/stream-filter:^1.5
+```
+
+See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.
+
+This project aims to run on any platform and thus does not require any PHP
+extensions and supports running on legacy PHP 5.3 through current PHP 7+ and
+HHVM.
+It's *highly recommended to use PHP 7+* for this project.
+Older PHP versions may suffer from a number of inconsistencies documented above.
+
+## Tests
+
+To run the test suite, you first need to clone this repo and then install all
+dependencies [through Composer](https://getcomposer.org):
+
+```bash
+$ composer install
+```
+
+To run the test suite, go to the project root and run:
+
+```bash
+$ php vendor/bin/phpunit
+```
+
+## License
+
+This project is released under the permissive [MIT license](LICENSE).
+
+> Did you know that I offer custom development services and issuing invoices for
+  sponsorships of releases and for contributions? Contact me (@clue) for details.

vendor/clue/stream-filter/composer.json

@@ -0,0 +1,26 @@
+{
+    "name": "clue/stream-filter",
+    "description": "A simple and modern approach to stream filtering in PHP",
+    "keywords": ["stream", "callback", "filter", "php_user_filter", "stream_filter_append", "stream_filter_register", "bucket brigade"],
+    "homepage": "https://github.com/clue/php-stream-filter",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "require": {
+        "php": ">=5.3"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8.36"
+    },
+    "autoload": {
+        "psr-4": { "Clue\\StreamFilter\\": "src/" },
+        "files": [ "src/functions_include.php" ]
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\StreamFilter\\": "tests/" }
+    }
+}

vendor/clue/stream-filter/src/CallbackFilter.php

@@ -0,0 +1,114 @@
+<?php
+
+namespace Clue\StreamFilter;
+
+/**
+ * @internal
+ * @see append()
+ * @see prepend()
+ */
+class CallbackFilter extends \php_user_filter
+{
+    private $callback;
+    private $closed = true;
+    private $supportsClose = false;
+
+    public function onCreate()
+    {
+        $this->closed = false;
+
+        if (!\is_callable($this->params)) {
+            throw new \InvalidArgumentException('No valid callback parameter given to stream_filter_(append|prepend)');
+        }
+        $this->callback = $this->params;
+
+        // callback supports end event if it accepts invocation without arguments
+        $ref = new \ReflectionFunction($this->callback);
+        $this->supportsClose = ($ref->getNumberOfRequiredParameters() === 0);
+
+        return true;
+    }
+
+    public function onClose()
+    {
+        $this->closed = true;
+
+        // callback supports closing and is not already closed
+        if ($this->supportsClose) {
+            $this->supportsClose = false;
+            // invoke without argument to signal end and discard resulting buffer
+            try {
+                \call_user_func($this->callback);
+            } catch (\Exception $ignored) {
+                // this might be called during engine shutdown, so it's not safe
+                // to raise any errors or exceptions here
+                // trigger_error('Error closing filter: ' . $ignored->getMessage(), E_USER_WARNING);
+            }
+        }
+
+        $this->callback = null;
+    }
+
+    public function filter($in, $out, &$consumed, $closing)
+    {
+        // concatenate whole buffer from input brigade
+        $data = '';
+        while ($bucket = \stream_bucket_make_writeable($in)) {
+            $consumed += $bucket->datalen;
+            $data .= $bucket->data;
+        }
+
+        // skip processing callback that already ended
+        if ($this->closed) {
+            return \PSFS_FEED_ME;
+        }
+
+        // only invoke filter function if buffer is not empty
+        // this may skip flushing a closing filter
+        if ($data !== '') {
+            try {
+                $data = \call_user_func($this->callback, $data);
+            } catch (\Exception $e) {
+                // exception should mark filter as closed
+                $this->onClose();
+                \trigger_error('Error invoking filter: ' . $e->getMessage(), \E_USER_WARNING);
+
+                return \PSFS_ERR_FATAL;
+            }
+        }
+
+        // mark filter as closed after processing closing chunk
+        if ($closing) {
+            $this->closed = true;
+
+            // callback supports closing and is not already closed
+            if ($this->supportsClose) {
+                $this->supportsClose = false;
+
+                // invoke without argument to signal end and append resulting buffer
+                try {
+                    $data .= \call_user_func($this->callback);
+                } catch (\Exception $e) {
+                    \trigger_error('Error ending filter: ' . $e->getMessage(), \E_USER_WARNING);
+
+                    return \PSFS_ERR_FATAL;
+                }
+            }
+        }
+
+        if ($data !== '') {
+            // create a new bucket for writing the resulting buffer to the output brigade
+            // reusing an existing bucket turned out to be bugged in some environments (ancient PHP versions and HHVM)
+            $bucket = @\stream_bucket_new($this->stream, $data);
+
+            // legacy PHP versions (PHP < 5.4) do not support passing data from the event signal handler
+            // because closing the stream invalidates the stream and its stream bucket brigade before
+            // invoking the filter close handler.
+            if ($bucket !== false) {
+                \stream_bucket_append($out, $bucket);
+            }
+        }
+
+        return \PSFS_PASS_ON;
+    }
+}

vendor/clue/stream-filter/src/functions.php

@@ -0,0 +1,327 @@
+<?php
+
+namespace Clue\StreamFilter;
+
+/**
+ * Append a filter callback to the given stream.
+ *
+ * Each stream can have a list of filters attached.
+ * This function appends a filter to the end of this list.
+ *
+ * If the given filter can not be added, it throws an `Exception`.
+ *
+ * The `$stream` can be any valid stream resource, such as:
+ *
+ * ```php
+ * $stream = fopen('demo.txt', 'w+');
+ * ```
+ *
+ * The `$callback` should be a valid callable function which accepts
+ * an individual chunk of data and should return the updated chunk:
+ *
+ * ```php
+ * $filter = Filter\append($stream, function ($chunk) {
+ *     // will be called each time you read or write a $chunk to/from the stream
+ *     return $chunk;
+ * });
+ * ```
+ *
+ * As such, you can also use native PHP functions or any other `callable`:
+ *
+ * ```php
+ * Filter\append($stream, 'strtoupper');
+ *
+ * // will write "HELLO" to the underlying stream
+ * fwrite($stream, 'hello');
+ * ```
+ *
+ * If the `$callback` accepts invocation without parameters,
+ * then this signature will be invoked once ending (flushing) the filter:
+ *
+ * ```php
+ * Filter\append($stream, function ($chunk = null) {
+ *     if ($chunk === null) {
+ *         // will be called once ending the filter
+ *         return 'end';
+ *     }
+ *     // will be called each time you read or write a $chunk to/from the stream
+ *     return $chunk;
+ * });
+ *
+ * fclose($stream);
+ * ```
+ *
+ * > Note: Legacy PHP versions (PHP < 5.4) do not support passing additional data
+ * from the end signal handler if the stream is being closed.
+ *
+ * If your callback throws an `Exception`, then the filter process will be aborted.
+ * In order to play nice with PHP's stream handling,
+ * the `Exception` will be transformed to a PHP warning instead:
+ *
+ * ```php
+ * Filter\append($stream, function ($chunk) {
+ *     throw new \RuntimeException('Unexpected chunk');
+ * });
+ *
+ * // raises an E_USER_WARNING with "Error invoking filter: Unexpected chunk"
+ * fwrite($stream, 'hello');
+ * ```
+ *
+ * The optional `$read_write` parameter can be used to only invoke the `$callback`
+ * when either writing to the stream or only when reading from the stream:
+ *
+ * ```php
+ * Filter\append($stream, function ($chunk) {
+ *     // will be called each time you write to the stream
+ *     return $chunk;
+ * }, STREAM_FILTER_WRITE);
+ *
+ * Filter\append($stream, function ($chunk) {
+ *     // will be called each time you read from the stream
+ *     return $chunk;
+ * }, STREAM_FILTER_READ);
+ * ```
+ *
+ * This function returns a filter resource which can be passed to [`remove()`](#remove).
+ *
+ * > Note that once a filter has been added to stream, the stream can no longer be passed to
+ * > [`stream_select()`](https://www.php.net/manual/en/function.stream-select.php)
+ * > (and family).
+ * >
+ * > > Warning: stream_select(): cannot cast a filtered stream on this system in {file} on line {line}
+ * >
+ * > This is due to limitations of PHP's stream filter support, as it can no longer reliably
+ * > tell when the underlying stream resource is actually ready.
+ * > As an alternative, consider calling `stream_select()` on the unfiltered stream and
+ * > then pass the unfiltered data through the [`fun()`](#fun) function.
+ *
+ * @param resource $stream
+ * @param callable $callback
+ * @param int $read_write
+ * @return resource filter resource which can be used for `remove()`
+ * @throws \Exception on error
+ * @uses stream_filter_append()
+ */
+function append($stream, $callback, $read_write = STREAM_FILTER_ALL)
+{
+    $ret = @\stream_filter_append($stream, register(), $read_write, $callback);
+
+    // PHP 8 throws above on type errors, older PHP and memory issues can throw here
+    // @codeCoverageIgnoreStart
+    if ($ret === false) {
+        $error = \error_get_last() + array('message' => '');
+        throw new \RuntimeException('Unable to append filter: ' . $error['message']);
+    }
+    // @codeCoverageIgnoreEnd
+
+    return $ret;
+}
+
+/**
+ * Prepend a filter callback to the given stream.
+ *
+ * Each stream can have a list of filters attached.
+ * This function prepends a filter to the start of this list.
+ *
+ * If the given filter can not be added, it throws an `Exception`.
+ *
+ * ```php
+ * $filter = Filter\prepend($stream, function ($chunk) {
+ *     // will be called each time you read or write a $chunk to/from the stream
+ *     return $chunk;
+ * });
+ * ```
+ *
+ * This function returns a filter resource which can be passed to [`remove()`](#remove).
+ *
+ * Except for the position in the list of filters, this function behaves exactly
+ * like the [`append()`](#append) function.
+ * For more details about its behavior, see also the [`append()`](#append) function.
+ *
+ * @param resource $stream
+ * @param callable $callback
+ * @param int $read_write
+ * @return resource filter resource which can be used for `remove()`
+ * @throws \Exception on error
+ * @uses stream_filter_prepend()
+ */
+function prepend($stream, $callback, $read_write = STREAM_FILTER_ALL)
+{
+    $ret = @\stream_filter_prepend($stream, register(), $read_write, $callback);
+
+    // PHP 8 throws above on type errors, older PHP and memory issues can throw here
+    // @codeCoverageIgnoreStart
+    if ($ret === false) {
+        $error = \error_get_last() + array('message' => '');
+        throw new \RuntimeException('Unable to prepend filter: ' . $error['message']);
+    }
+    // @codeCoverageIgnoreEnd
+
+    return $ret;
+}
+
+/**
+ * Create a filter function which uses the given built-in `$filter`.
+ *
+ * PHP comes with a useful set of [built-in filters](https://www.php.net/manual/en/filters.php).
+ * Using `fun()` makes accessing these as easy as passing an input string to filter
+ * and getting the filtered output string.
+ *
+ * ```php
+ * $fun = Filter\fun('string.rot13');
+ *
+ * assert('grfg' === $fun('test'));
+ * assert('test' === $fun($fun('test'));
+ * ```
+ *
+ * Please note that not all filter functions may be available depending
+ * on installed PHP extensions and the PHP version in use.
+ * In particular, [HHVM](https://hhvm.com/) may not offer the same filter functions
+ * or parameters as Zend PHP.
+ * Accessing an unknown filter function will result in a `RuntimeException`:
+ *
+ * ```php
+ * Filter\fun('unknown'); // throws RuntimeException
+ * ```
+ *
+ * Some filters may accept or require additional filter parameters – most
+ * filters do not require filter parameters.
+ * If given, the optional `$parameters` argument will be passed to the
+ * underlying filter handler as-is.
+ * In particular, note how *not passing* this parameter at all differs from
+ * explicitly passing a `null` value (which many filters do not accept).
+ * Please refer to the individual filter definition for more details.
+ * For example, the `string.strip_tags` filter can be invoked like this:
+ *
+ * ```php
+ * $fun = Filter\fun('string.strip_tags', '<a><b>');
+ *
+ * $ret = $fun('<b>h<br>i</b>');
+ * assert('<b>hi</b>' === $ret);
+ * ```
+ *
+ * Under the hood, this function allocates a temporary memory stream, so it's
+ * recommended to clean up the filter function after use.
+ * Also, some filter functions (in particular the
+ * [zlib compression filters](https://www.php.net/manual/en/filters.compression.php))
+ * may use internal buffers and may emit a final data chunk on close.
+ * The filter function can be closed by invoking without any arguments:
+ *
+ * ```php
+ * $fun = Filter\fun('zlib.deflate');
+ *
+ * $ret = $fun('hello') . $fun('world') . $fun();
+ * assert('helloworld' === gzinflate($ret));
+ * ```
+ *
+ * The filter function must not be used anymore after it has been closed.
+ * Doing so will result in a `RuntimeException`:
+ *
+ * ```php
+ * $fun = Filter\fun('string.rot13');
+ * $fun();
+ *
+ * $fun('test'); // throws RuntimeException
+ * ```
+ *
+ * > Note: If you're using the zlib compression filters, then you should be wary
+ * about engine inconsistencies between different PHP versions and HHVM.
+ * These inconsistencies exist in the underlying PHP engines and there's little we
+ * can do about this in this library.
+ * [Our test suite](tests/) contains several test cases that exhibit these issues.
+ * If you feel some test case is missing or outdated, we're happy to accept PRs! :)
+ *
+ * @param string $filter     built-in filter name. See stream_get_filters() or http://php.net/manual/en/filters.php
+ * @param mixed  $parameters (optional) parameters to pass to the built-in filter as-is
+ * @return callable a filter callback which can be append()'ed or prepend()'ed
+ * @throws \RuntimeException on error
+ * @link http://php.net/manual/en/filters.php
+ * @see stream_get_filters()
+ * @see append()
+ */
+function fun($filter, $parameters = null)
+{
+    $fp = \fopen('php://memory', 'w');
+    if (\func_num_args() === 1) {
+        $filter = @\stream_filter_append($fp, $filter, \STREAM_FILTER_WRITE);
+    } else {
+        $filter = @\stream_filter_append($fp, $filter, \STREAM_FILTER_WRITE, $parameters);
+    }
+
+    if ($filter === false) {
+        \fclose($fp);
+        $error = \error_get_last() + array('message' => '');
+        throw new \RuntimeException('Unable to access built-in filter: ' . $error['message']);
+    }
+
+    // append filter function which buffers internally
+    $buffer = '';
+    append($fp, function ($chunk) use (&$buffer) {
+        $buffer .= $chunk;
+
+        // always return empty string in order to skip actually writing to stream resource
+        return '';
+    }, \STREAM_FILTER_WRITE);
+
+    $closed = false;
+
+    return function ($chunk = null) use ($fp, $filter, &$buffer, &$closed) {
+        if ($closed) {
+            throw new \RuntimeException('Unable to perform operation on closed stream');
+        }
+        if ($chunk === null) {
+            $closed = true;
+            $buffer = '';
+            \fclose($fp);
+            return $buffer;
+        }
+        // initialize buffer and invoke filters by attempting to write to stream
+        $buffer = '';
+        \fwrite($fp, $chunk);
+
+        // buffer now contains everything the filter function returned
+        return $buffer;
+    };
+}
+
+/**
+ * Remove a filter previously added via `append()` or `prepend()`.
+ *
+ * ```php
+ * $filter = Filter\append($stream, function () {
+ *     // …
+ * });
+ * Filter\remove($filter);
+ * ```
+ *
+ * @param resource $filter
+ * @return bool true on success or false on error
+ * @throws \RuntimeException on error
+ * @uses stream_filter_remove()
+ */
+function remove($filter)
+{
+    if (@\stream_filter_remove($filter) === false) {
+        // PHP 8 throws above on type errors, older PHP and memory issues can throw here
+        $error = \error_get_last();
+        throw new \RuntimeException('Unable to remove filter: ' . $error['message']);
+    }
+}
+
+/**
+ * Registers the callback filter and returns the resulting filter name
+ *
+ * There should be little reason to call this function manually.
+ *
+ * @return string filter name
+ * @uses CallbackFilter
+ */
+function register()
+{
+    static $registered = null;
+    if ($registered === null) {
+        $registered = 'stream-callback';
+        \stream_filter_register($registered, __NAMESPACE__ . '\CallbackFilter');
+    }
+    return $registered;
+}

vendor/clue/stream-filter/src/functions_include.php

@@ -0,0 +1,6 @@
+<?php
+
+// @codeCoverageIgnoreStart
+if (!\function_exists('Clue\\StreamFilter\\append')) {
+    require __DIR__ . '/functions.php';
+}

vendor/composer/ClassLoader.php

@@ -0,0 +1,572 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Autoload;
+
+/**
+ * ClassLoader implements a PSR-0, PSR-4 and classmap class loader.
+ *
+ *     $loader = new \Composer\Autoload\ClassLoader();
+ *
+ *     // register classes with namespaces
+ *     $loader->add('Symfony\Component', __DIR__.'/component');
+ *     $loader->add('Symfony',           __DIR__.'/framework');
+ *
+ *     // activate the autoloader
+ *     $loader->register();
+ *
+ *     // to enable searching the include path (eg. for PEAR packages)
+ *     $loader->setUseIncludePath(true);
+ *
+ * In this example, if you try to use a class in the Symfony\Component
+ * namespace or one of its children (Symfony\Component\Console for instance),
+ * the autoloader will first look for the class under the component/
+ * directory, and it will then fallback to the framework/ directory if not
+ * found before giving up.
+ *
+ * This class is loosely based on the Symfony UniversalClassLoader.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ * @see    https://www.php-fig.org/psr/psr-0/
+ * @see    https://www.php-fig.org/psr/psr-4/
+ */
+class ClassLoader
+{
+    /** @var ?string */
+    private $vendorDir;
+
+    // PSR-4
+    /**
+     * @var array[]
+     * @psalm-var array<string, array<string, int>>
+     */
+    private $prefixLengthsPsr4 = array();
+    /**
+     * @var array[]
+     * @psalm-var array<string, array<int, string>>
+     */
+    private $prefixDirsPsr4 = array();
+    /**
+     * @var array[]
+     * @psalm-var array<string, string>
+     */
+    private $fallbackDirsPsr4 = array();
+
+    // PSR-0
+    /**
+     * @var array[]
+     * @psalm-var array<string, array<string, string[]>>
+     */
+    private $prefixesPsr0 = array();
+    /**
+     * @var array[]
+     * @psalm-var array<string, string>
+     */
+    private $fallbackDirsPsr0 = array();
+
+    /** @var bool */
+    private $useIncludePath = false;
+
+    /**
+     * @var string[]
+     * @psalm-var array<string, string>
+     */
+    private $classMap = array();
+
+    /** @var bool */
+    private $classMapAuthoritative = false;
+
+    /**
+     * @var bool[]
+     * @psalm-var array<string, bool>
+     */
+    private $missingClasses = array();
+
+    /** @var ?string */
+    private $apcuPrefix;
+
+    /**
+     * @var self[]
+     */
+    private static $registeredLoaders = array();
+
+    /**
+     * @param ?string $vendorDir
+     */
+    public function __construct($vendorDir = null)
+    {
+        $this->vendorDir = $vendorDir;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getPrefixes()
+    {
+        if (!empty($this->prefixesPsr0)) {
+            return call_user_func_array('array_merge', array_values($this->prefixesPsr0));
+        }
+
+        return array();
+    }
+
+    /**
+     * @return array[]
+     * @psalm-return array<string, array<int, string>>
+     */
+    public function getPrefixesPsr4()
+    {
+        return $this->prefixDirsPsr4;
+    }
+
+    /**
+     * @return array[]
+     * @psalm-return array<string, string>
+     */
+    public function getFallbackDirs()
+    {
+        return $this->fallbackDirsPsr0;
+    }
+
+    /**
+     * @return array[]
+     * @psalm-return array<string, string>
+     */
+    public function getFallbackDirsPsr4()
+    {
+        return $this->fallbackDirsPsr4;
+    }
+
+    /**
+     * @return string[] Array of classname => path
+     * @psalm-var array<string, string>
+     */
+    public function getClassMap()
+    {
+        return $this->classMap;
+    }
+
+    /**
+     * @param string[] $classMap Class to filename map
+     * @psalm-param array<string, string> $classMap
+     *
+     * @return void
+     */
+    public function addClassMap(array $classMap)
+    {
+        if ($this->classMap) {
+            $this->classMap = array_merge($this->classMap, $classMap);
+        } else {
+            $this->classMap = $classMap;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix, either
+     * appending or prepending to the ones previously set for this prefix.
+     *
+     * @param string          $prefix  The prefix
+     * @param string[]|string $paths   The PSR-0 root directories
+     * @param bool            $prepend Whether to prepend the directories
+     *
+     * @return void
+     */
+    public function add($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            if ($prepend) {
+                $this->fallbackDirsPsr0 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr0
+                );
+            } else {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $this->fallbackDirsPsr0,
+                    (array) $paths
+                );
+            }
+
+            return;
+        }
+
+        $first = $prefix[0];
+        if (!isset($this->prefixesPsr0[$first][$prefix])) {
+            $this->prefixesPsr0[$first][$prefix] = (array) $paths;
+
+            return;
+        }
+        if ($prepend) {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixesPsr0[$first][$prefix]
+            );
+        } else {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $this->prefixesPsr0[$first][$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace, either
+     * appending or prepending to the ones previously set for this namespace.
+     *
+     * @param string          $prefix  The prefix/namespace, with trailing '\\'
+     * @param string[]|string $paths   The PSR-4 base directories
+     * @param bool            $prepend Whether to prepend the directories
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @return void
+     */
+    public function addPsr4($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            // Register directories for the root namespace.
+            if ($prepend) {
+                $this->fallbackDirsPsr4 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr4
+                );
+            } else {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $this->fallbackDirsPsr4,
+                    (array) $paths
+                );
+            }
+        } elseif (!isset($this->prefixDirsPsr4[$prefix])) {
+            // Register directories for a new namespace.
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        } elseif ($prepend) {
+            // Prepend directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixDirsPsr4[$prefix]
+            );
+        } else {
+            // Append directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $this->prefixDirsPsr4[$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix,
+     * replacing any others previously set for this prefix.
+     *
+     * @param string          $prefix The prefix
+     * @param string[]|string $paths  The PSR-0 base directories
+     *
+     * @return void
+     */
+    public function set($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr0 = (array) $paths;
+        } else {
+            $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace,
+     * replacing any others previously set for this namespace.
+     *
+     * @param string          $prefix The prefix/namespace, with trailing '\\'
+     * @param string[]|string $paths  The PSR-4 base directories
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @return void
+     */
+    public function setPsr4($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr4 = (array) $paths;
+        } else {
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Turns on searching the include path for class files.
+     *
+     * @param bool $useIncludePath
+     *
+     * @return void
+     */
+    public function setUseIncludePath($useIncludePath)
+    {
+        $this->useIncludePath = $useIncludePath;
+    }
+
+    /**
+     * Can be used to check if the autoloader uses the include path to check
+     * for classes.
+     *
+     * @return bool
+     */
+    public function getUseIncludePath()
+    {
+        return $this->useIncludePath;
+    }
+
+    /**
+     * Turns off searching the prefix and fallback directories for classes
+     * that have not been registered with the class map.
+     *
+     * @param bool $classMapAuthoritative
+     *
+     * @return void
+     */
+    public function setClassMapAuthoritative($classMapAuthoritative)
+    {
+        $this->classMapAuthoritative = $classMapAuthoritative;
+    }
+
+    /**
+     * Should class lookup fail if not found in the current class map?
+     *
+     * @return bool
+     */
+    public function isClassMapAuthoritative()
+    {
+        return $this->classMapAuthoritative;
+    }
+
+    /**
+     * APCu prefix to use to cache found/not-found classes, if the extension is enabled.
+     *
+     * @param string|null $apcuPrefix
+     *
+     * @return void
+     */
+    public function setApcuPrefix($apcuPrefix)
+    {
+        $this->apcuPrefix = function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN) ? $apcuPrefix : null;
+    }
+
+    /**
+     * The APCu prefix in use, or null if APCu caching is not enabled.
+     *
+     * @return string|null
+     */
+    public function getApcuPrefix()
+    {
+        return $this->apcuPrefix;
+    }
+
+    /**
+     * Registers this instance as an autoloader.
+     *
+     * @param bool $prepend Whether to prepend the autoloader or not
+     *
+     * @return void
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+
+        if (null === $this->vendorDir) {
+            return;
+        }
+
+        if ($prepend) {
+            self::$registeredLoaders = array($this->vendorDir => $this) + self::$registeredLoaders;
+        } else {
+            unset(self::$registeredLoaders[$this->vendorDir]);
+            self::$registeredLoaders[$this->vendorDir] = $this;
+        }
+    }
+
+    /**
+     * Unregisters this instance as an autoloader.
+     *
+     * @return void
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+
+        if (null !== $this->vendorDir) {
+            unset(self::$registeredLoaders[$this->vendorDir]);
+        }
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param  string    $class The name of the class
+     * @return true|null True if loaded, null otherwise
+     */
+    public function loadClass($class)
+    {
+        if ($file = $this->findFile($class)) {
+            includeFile($file);
+
+            return true;
+        }
+
+        return null;
+    }
+
+    /**
+     * Finds the path to the file where the class is defined.
+     *
+     * @param string $class The name of the class
+     *
+     * @return string|false The path if found, false otherwise
+     */
+    public function findFile($class)
+    {
+        // class map lookup
+        if (isset($this->classMap[$class])) {
+            return $this->classMap[$class];
+        }
+        if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
+            return false;
+        }
+        if (null !== $this->apcuPrefix) {
+            $file = apcu_fetch($this->apcuPrefix.$class, $hit);
+            if ($hit) {
+                return $file;
+            }
+        }
+
+        $file = $this->findFileWithExtension($class, '.php');
+
+        // Search for Hack files if we are running on HHVM
+        if (false === $file && defined('HHVM_VERSION')) {
+            $file = $this->findFileWithExtension($class, '.hh');
+        }
+
+        if (null !== $this->apcuPrefix) {
+            apcu_add($this->apcuPrefix.$class, $file);
+        }
+
+        if (false === $file) {
+            // Remember that this class does not exist.
+            $this->missingClasses[$class] = true;
+        }
+
+        return $file;
+    }
+
+    /**
+     * Returns the currently registered loaders indexed by their corresponding vendor directories.
+     *
+     * @return self[]
+     */
+    public static function getRegisteredLoaders()
+    {
+        return self::$registeredLoaders;
+    }
+
+    /**
+     * @param  string       $class
+     * @param  string       $ext
+     * @return string|false
+     */
+    private function findFileWithExtension($class, $ext)
+    {
+        // PSR-4 lookup
+        $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
+
+        $first = $class[0];
+        if (isset($this->prefixLengthsPsr4[$first])) {
+            $subPath = $class;
+            while (false !== $lastPos = strrpos($subPath, '\\')) {
+                $subPath = substr($subPath, 0, $lastPos);
+                $search = $subPath . '\\';
+                if (isset($this->prefixDirsPsr4[$search])) {
+                    $pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);
+                    foreach ($this->prefixDirsPsr4[$search] as $dir) {
+                        if (file_exists($file = $dir . $pathEnd)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-4 fallback dirs
+        foreach ($this->fallbackDirsPsr4 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 lookup
+        if (false !== $pos = strrpos($class, '\\')) {
+            // namespaced class name
+            $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
+                . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
+        } else {
+            // PEAR-like class name
+            $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
+        }
+
+        if (isset($this->prefixesPsr0[$first])) {
+            foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($dirs as $dir) {
+                        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-0 fallback dirs
+        foreach ($this->fallbackDirsPsr0 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 include paths.
+        if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
+            return $file;
+        }
+
+        return false;
+    }
+}
+
+/**
+ * Scope isolated include.
+ *
+ * Prevents access to $this/self from included files.
+ *
+ * @param  string $file
+ * @return void
+ * @private
+ */
+function includeFile($file)
+{
+    include $file;
+}

vendor/composer/InstalledVersions.php

@@ -0,0 +1,350 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer;
+
+use Composer\Autoload\ClassLoader;
+use Composer\Semver\VersionParser;
+
+/**
+ * This class is copied in every Composer installed project and available to all
+ *
+ * See also https://getcomposer.org/doc/07-runtime.md#installed-versions
+ *
+ * To require its presence, you can require `composer-runtime-api ^2.0`
+ */
+class InstalledVersions
+{
+    /**
+     * @var mixed[]|null
+     * @psalm-var array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>}|array{}|null
+     */
+    private static $installed;
+
+    /**
+     * @var bool|null
+     */
+    private static $canGetVendors;
+
+    /**
+     * @var array[]
+     * @psalm-var array<string, array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>}>
+     */
+    private static $installedByVendor = array();
+
+    /**
+     * Returns a list of all package names which are present, either by being installed, replaced or provided
+     *
+     * @return string[]
+     * @psalm-return list<string>
+     */
+    public static function getInstalledPackages()
+    {
+        $packages = array();
+        foreach (self::getInstalled() as $installed) {
+            $packages[] = array_keys($installed['versions']);
+        }
+
+        if (1 === \count($packages)) {
+            return $packages[0];
+        }
+
+        return array_keys(array_flip(\call_user_func_array('array_merge', $packages)));
+    }
+
+    /**
+     * Returns a list of all package names with a specific type e.g. 'library'
+     *
+     * @param  string   $type
+     * @return string[]
+     * @psalm-return list<string>
+     */
+    public static function getInstalledPackagesByType($type)
+    {
+        $packagesByType = array();
+
+        foreach (self::getInstalled() as $installed) {
+            foreach ($installed['versions'] as $name => $package) {
+                if (isset($package['type']) && $package['type'] === $type) {
+                    $packagesByType[] = $name;
+                }
+            }
+        }
+
+        return $packagesByType;
+    }
+
+    /**
+     * Checks whether the given package is installed
+     *
+     * This also returns true if the package name is provided or replaced by another package
+     *
+     * @param  string $packageName
+     * @param  bool   $includeDevRequirements
+     * @return bool
+     */
+    public static function isInstalled($packageName, $includeDevRequirements = true)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (isset($installed['versions'][$packageName])) {
+                return $includeDevRequirements || empty($installed['versions'][$packageName]['dev_requirement']);
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Checks whether the given package satisfies a version constraint
+     *
+     * e.g. If you want to know whether version 2.3+ of package foo/bar is installed, you would call:
+     *
+     *   Composer\InstalledVersions::satisfies(new VersionParser, 'foo/bar', '^2.3')
+     *
+     * @param  VersionParser $parser      Install composer/semver to have access to this class and functionality
+     * @param  string        $packageName
+     * @param  string|null   $constraint  A version constraint to check for, if you pass one you have to make sure composer/semver is required by your package
+     * @return bool
+     */
+    public static function satisfies(VersionParser $parser, $packageName, $constraint)
+    {
+        $constraint = $parser->parseConstraints($constraint);
+        $provided = $parser->parseConstraints(self::getVersionRanges($packageName));
+
+        return $provided->matches($constraint);
+    }
+
+    /**
+     * Returns a version constraint representing all the range(s) which are installed for a given package
+     *
+     * It is easier to use this via isInstalled() with the $constraint argument if you need to check
+     * whether a given version of a package is installed, and not just whether it exists
+     *
+     * @param  string $packageName
+     * @return string Version constraint usable with composer/semver
+     */
+    public static function getVersionRanges($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            $ranges = array();
+            if (isset($installed['versions'][$packageName]['pretty_version'])) {
+                $ranges[] = $installed['versions'][$packageName]['pretty_version'];
+            }
+            if (array_key_exists('aliases', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['aliases']);
+            }
+            if (array_key_exists('replaced', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['replaced']);
+            }
+            if (array_key_exists('provided', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['provided']);
+            }
+
+            return implode(' || ', $ranges);
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as version, use satisfies or getVersionRanges if you need to know if a given version is present
+     */
+    public static function getVersion($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['version'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['version'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as version, use satisfies or getVersionRanges if you need to know if a given version is present
+     */
+    public static function getPrettyVersion($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['pretty_version'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['pretty_version'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as reference
+     */
+    public static function getReference($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['reference'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['reference'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as install path. Packages of type metapackages also have a null install path.
+     */
+    public static function getInstallPath($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            return isset($installed['versions'][$packageName]['install_path']) ? $installed['versions'][$packageName]['install_path'] : null;
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @return array
+     * @psalm-return array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}
+     */
+    public static function getRootPackage()
+    {
+        $installed = self::getInstalled();
+
+        return $installed[0]['root'];
+    }
+
+    /**
+     * Returns the raw installed.php data for custom implementations
+     *
+     * @deprecated Use getAllRawData() instead which returns all datasets for all autoloaders present in the process. getRawData only returns the first dataset loaded, which may not be what you expect.
+     * @return array[]
+     * @psalm-return array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>}
+     */
+    public static function getRawData()
+    {
+        @trigger_error('getRawData only returns the first dataset loaded, which may not be what you expect. Use getAllRawData() instead which returns all datasets for all autoloaders present in the process.', E_USER_DEPRECATED);
+
+        if (null === self::$installed) {
+            // only require the installed.php file if this file is loaded from its dumped location,
+            // and not from its source location in the composer/composer package, see https://github.com/composer/composer/issues/9937
+            if (substr(__DIR__, -8, 1) !== 'C') {
+                self::$installed = include __DIR__ . '/installed.php';
+            } else {
+                self::$installed = array();
+            }
+        }
+
+        return self::$installed;
+    }
+
+    /**
+     * Returns the raw data of all installed.php which are currently loaded for custom implementations
+     *
+     * @return array[]
+     * @psalm-return list<array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>}>
+     */
+    public static function getAllRawData()
+    {
+        return self::getInstalled();
+    }
+
+    /**
+     * Lets you reload the static array from another file
+     *
+     * This is only useful for complex integrations in which a project needs to use
+     * this class but then also needs to execute another project's autoloader in process,
+     * and wants to ensure both projects have access to their version of installed.php.
+     *
+     * A typical case would be PHPUnit, where it would need to make sure it reads all
+     * the data it needs from this class, then call reload() with
+     * `require $CWD/vendor/composer/installed.php` (or similar) as input to make sure
+     * the project in which it runs can then also use this class safely, without
+     * interference between PHPUnit's dependencies and the project's dependencies.
+     *
+     * @param  array[] $data A vendor/composer/installed.php data set
+     * @return void
+     *
+     * @psalm-param array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>} $data
+     */
+    public static function reload($data)
+    {
+        self::$installed = $data;
+        self::$installedByVendor = array();
+    }
+
+    /**
+     * @return array[]
+     * @psalm-return list<array{root: array{name: string, version: string, reference: string, pretty_version: string, aliases: string[], dev: bool, install_path: string, type: string}, versions: array<string, array{dev_requirement: bool, pretty_version?: string, version?: string, aliases?: string[], reference?: string, replaced?: string[], provided?: string[], install_path?: string, type?: string}>}>
+     */
+    private static function getInstalled()
+    {
+        if (null === self::$canGetVendors) {
+            self::$canGetVendors = method_exists('Composer\Autoload\ClassLoader', 'getRegisteredLoaders');
+        }
+
+        $installed = array();
+
+        if (self::$canGetVendors) {
+            foreach (ClassLoader::getRegisteredLoaders() as $vendorDir => $loader) {
+                if (isset(self::$installedByVendor[$vendorDir])) {
+                    $installed[] = self::$installedByVendor[$vendorDir];
+                } elseif (is_file($vendorDir.'/composer/installed.php')) {
+                    $installed[] = self::$installedByVendor[$vendorDir] = require $vendorDir.'/composer/installed.php';
+                    if (null === self::$installed && strtr($vendorDir.'/composer', '\\', '/') === strtr(__DIR__, '\\', '/')) {
+                        self::$installed = $installed[count($installed) - 1];
+                    }
+                }
+            }
+        }
+
+        if (null === self::$installed) {
+            // only require the installed.php file if this file is loaded from its dumped location,
+            // and not from its source location in the composer/composer package, see https://github.com/composer/composer/issues/9937
+            if (substr(__DIR__, -8, 1) !== 'C') {
+                self::$installed = require __DIR__ . '/installed.php';
+            } else {
+                self::$installed = array();
+            }
+        }
+        $installed[] = self::$installed;
+
+        return $installed;
+    }
+}

vendor/composer/LICENSE

@@ -0,0 +1,21 @@
+
+Copyright (c) Nils Adermann, Jordi Boggiano
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+

vendor/composer/autoload_classmap.php

@@ -0,0 +1,14 @@
+<?php
+
+// autoload_classmap.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Attribute' => $vendorDir . '/symfony/polyfill-php80/Resources/stubs/Attribute.php',
+    'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',
+    'Stringable' => $vendorDir . '/symfony/polyfill-php80/Resources/stubs/Stringable.php',
+    'UnhandledMatchError' => $vendorDir . '/symfony/polyfill-php80/Resources/stubs/UnhandledMatchError.php',
+    'ValueError' => $vendorDir . '/symfony/polyfill-php80/Resources/stubs/ValueError.php',
+);

vendor/composer/autoload_files.php

@@ -0,0 +1,33 @@
+<?php
+
+// autoload_files.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    '7b11c4dc42b3b3023073cb14e519683c' => $vendorDir . '/ralouphie/getallheaders/src/getallheaders.php',
+    '6e3fae29631ef280660b3cdad06f25a8' => $vendorDir . '/symfony/deprecation-contracts/function.php',
+    '9c67151ae59aff4788964ce8eb2a0f43' => $vendorDir . '/clue/stream-filter/src/functions_include.php',
+    '07d7f1a47144818725fd8d91a907ac57' => $vendorDir . '/laminas/laminas-diactoros/src/functions/create_uploaded_file.php',
+    'da94ac5d3ca7d2dbab84ce561ce72bfd' => $vendorDir . '/laminas/laminas-diactoros/src/functions/marshal_headers_from_sapi.php',
+    '3d97c8dcdfba8cb85d3b34f116bb248b' => $vendorDir . '/laminas/laminas-diactoros/src/functions/marshal_method_from_sapi.php',
+    'e6f3bc6883e449ab367280b34158c05b' => $vendorDir . '/laminas/laminas-diactoros/src/functions/marshal_protocol_version_from_sapi.php',
+    'd59fbae42019aedf227094ac49a46f50' => $vendorDir . '/laminas/laminas-diactoros/src/functions/marshal_uri_from_sapi.php',
+    'de95e0ac670b27c84ef8c5ac41fc1b34' => $vendorDir . '/laminas/laminas-diactoros/src/functions/normalize_server.php',
+    'b6c2870932b0250c10334a86dcb33c7f' => $vendorDir . '/laminas/laminas-diactoros/src/functions/normalize_uploaded_files.php',
+    'd02cf21124526632320d6f20b1bbf905' => $vendorDir . '/laminas/laminas-diactoros/src/functions/parse_cookie_header.php',
+    'd919fc9d5ad52cfb7f322f7fe36458ab' => $vendorDir . '/laminas/laminas-diactoros/src/functions/create_uploaded_file.legacy.php',
+    'e397f74f8af3b1e56166a6e99f216ee7' => $vendorDir . '/laminas/laminas-diactoros/src/functions/marshal_headers_from_sapi.legacy.php',
+    'd154b49fab8e4da34fb553a2d644918c' => $vendorDir . '/laminas/laminas-diactoros/src/functions/marshal_method_from_sapi.legacy.php',
+    '9d3db23ca418094bcf0b641a0c9559ed' => $vendorDir . '/laminas/laminas-diactoros/src/functions/marshal_protocol_version_from_sapi.legacy.php',
+    'b0b88a3b89caae681462c58ff19a7059' => $vendorDir . '/laminas/laminas-diactoros/src/functions/marshal_uri_from_sapi.legacy.php',
+    'cc8e14526dc240491e17a838cb78508c' => $vendorDir . '/laminas/laminas-diactoros/src/functions/normalize_server.legacy.php',
+    '786bf90caabc9e09b6ad4cc5ca8f0e30' => $vendorDir . '/laminas/laminas-diactoros/src/functions/normalize_uploaded_files.legacy.php',
+    '751a5a3f463e4be759be31748b61737c' => $vendorDir . '/laminas/laminas-diactoros/src/functions/parse_cookie_header.legacy.php',
+    '8cff32064859f4559445b89279f3199c' => $vendorDir . '/php-http/message/src/filters.php',
+    'a4a119a56e50fbb293281d9a48007e0e' => $vendorDir . '/symfony/polyfill-php80/bootstrap.php',
+    'c964ee0ededf28c96ebd9db5099ef910' => $vendorDir . '/guzzlehttp/promises/src/functions_include.php',
+    '37a3dc5111fe8f707ab4c132ef1dbc62' => $vendorDir . '/guzzlehttp/guzzle/src/functions_include.php',
+    '09fc349b549513bf7f4291502426f919' => $vendorDir . '/embed/embed/src/functions.php',
+);

vendor/composer/autoload_namespaces.php

@@ -0,0 +1,10 @@
+<?php
+
+// autoload_namespaces.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'ML\\IRI' => array($vendorDir . '/ml/iri'),
+);

vendor/composer/autoload_psr4.php

@@ -0,0 +1,33 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Symfony\\Polyfill\\Php80\\' => array($vendorDir . '/symfony/polyfill-php80'),
+    'Symfony\\Component\\OptionsResolver\\' => array($vendorDir . '/symfony/options-resolver'),
+    'Psr\\Http\\Message\\' => array($vendorDir . '/psr/http-factory/src', $vendorDir . '/psr/http-message/src'),
+    'Psr\\Http\\Client\\' => array($vendorDir . '/psr/http-client/src'),
+    'Psr\\Cache\\' => array($vendorDir . '/psr/cache/src'),
+    'ML\\JsonLD\\' => array($vendorDir . '/ml/json-ld'),
+    'Laminas\\Diactoros\\' => array($vendorDir . '/laminas/laminas-diactoros/src'),
+    'Http\\Promise\\' => array($vendorDir . '/php-http/promise/src'),
+    'Http\\Message\\MultipartStream\\' => array($vendorDir . '/php-http/multipart-stream-builder/src'),
+    'Http\\Message\\' => array($vendorDir . '/php-http/message/src', $vendorDir . '/php-http/message-factory/src'),
+    'Http\\Factory\\Guzzle\\' => array($vendorDir . '/http-interop/http-factory-guzzle/src'),
+    'Http\\Discovery\\' => array($vendorDir . '/php-http/discovery/src'),
+    'Http\\Client\\Common\\Plugin\\' => array($vendorDir . '/php-http/cache-plugin/src'),
+    'Http\\Client\\Common\\' => array($vendorDir . '/php-http/client-common/src'),
+    'Http\\Client\\' => array($vendorDir . '/php-http/httplug/src'),
+    'HtmlParser\\' => array($vendorDir . '/oscarotero/html-parser/src'),
+    'GuzzleHttp\\Psr7\\' => array($vendorDir . '/guzzlehttp/psr7/src'),
+    'GuzzleHttp\\Promise\\' => array($vendorDir . '/guzzlehttp/promises/src'),
+    'GuzzleHttp\\' => array($vendorDir . '/guzzlehttp/guzzle/src'),
+    'Grandel\\' => array($vendorDir . '/grandel/include-directory/src'),
+    'Github\\' => array($vendorDir . '/knplabs/github-api/lib/Github'),
+    'Embed\\' => array($vendorDir . '/embed/embed/src'),
+    'Composer\\CaBundle\\' => array($vendorDir . '/composer/ca-bundle/src'),
+    'Clue\\StreamFilter\\' => array($vendorDir . '/clue/stream-filter/src'),
+);

vendor/composer/autoload_real.php

@@ -0,0 +1,75 @@
+<?php
+
+// autoload_real.php @generated by Composer
+
+class ComposerAutoloaderInit5f3db9fc1d0cf1dd6a77a1d84501b4b1
+{
+    private static $loader;
+
+    public static function loadClassLoader($class)
+    {
+        if ('Composer\Autoload\ClassLoader' === $class) {
+            require __DIR__ . '/ClassLoader.php';
+        }
+    }
+
+    /**
+     * @return \Composer\Autoload\ClassLoader
+     */
+    public static function getLoader()
+    {
+        if (null !== self::$loader) {
+            return self::$loader;
+        }
+
+        require __DIR__ . '/platform_check.php';
+
+        spl_autoload_register(array('ComposerAutoloaderInit5f3db9fc1d0cf1dd6a77a1d84501b4b1', 'loadClassLoader'), true, true);
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(\dirname(__FILE__)));
+        spl_autoload_unregister(array('ComposerAutoloaderInit5f3db9fc1d0cf1dd6a77a1d84501b4b1', 'loadClassLoader'));
+
+        $useStaticLoader = PHP_VERSION_ID >= 50600 && !defined('HHVM_VERSION') && (!function_exists('zend_loader_file_encoded') || !zend_loader_file_encoded());
+        if ($useStaticLoader) {
+            require __DIR__ . '/autoload_static.php';
+
+            call_user_func(\Composer\Autoload\ComposerStaticInit5f3db9fc1d0cf1dd6a77a1d84501b4b1::getInitializer($loader));
+        } else {
+            $map = require __DIR__ . '/autoload_namespaces.php';
+            foreach ($map as $namespace => $path) {
+                $loader->set($namespace, $path);
+            }
+
+            $map = require __DIR__ . '/autoload_psr4.php';
+            foreach ($map as $namespace => $path) {
+                $loader->setPsr4($namespace, $path);
+            }
+
+            $classMap = require __DIR__ . '/autoload_classmap.php';
+            if ($classMap) {
+                $loader->addClassMap($classMap);
+            }
+        }
+
+        $loader->register(true);
+
+        if ($useStaticLoader) {
+            $includeFiles = Composer\Autoload\ComposerStaticInit5f3db9fc1d0cf1dd6a77a1d84501b4b1::$files;
+        } else {
+            $includeFiles = require __DIR__ . '/autoload_files.php';
+        }
+        foreach ($includeFiles as $fileIdentifier => $file) {
+            composerRequire5f3db9fc1d0cf1dd6a77a1d84501b4b1($fileIdentifier, $file);
+        }
+
+        return $loader;
+    }
+}
+
+function composerRequire5f3db9fc1d0cf1dd6a77a1d84501b4b1($fileIdentifier, $file)
+{
+    if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
+        require $file;
+
+        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
+    }
+}

vendor/composer/autoload_static.php

@@ -0,0 +1,216 @@
+<?php
+
+// autoload_static.php @generated by Composer
+
+namespace Composer\Autoload;
+
+class ComposerStaticInit5f3db9fc1d0cf1dd6a77a1d84501b4b1
+{
+    public static $files = array (
+        '7b11c4dc42b3b3023073cb14e519683c' => __DIR__ . '/..' . '/ralouphie/getallheaders/src/getallheaders.php',
+        '6e3fae29631ef280660b3cdad06f25a8' => __DIR__ . '/..' . '/symfony/deprecation-contracts/function.php',
+        '9c67151ae59aff4788964ce8eb2a0f43' => __DIR__ . '/..' . '/clue/stream-filter/src/functions_include.php',
+        '07d7f1a47144818725fd8d91a907ac57' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/create_uploaded_file.php',
+        'da94ac5d3ca7d2dbab84ce561ce72bfd' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/marshal_headers_from_sapi.php',
+        '3d97c8dcdfba8cb85d3b34f116bb248b' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/marshal_method_from_sapi.php',
+        'e6f3bc6883e449ab367280b34158c05b' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/marshal_protocol_version_from_sapi.php',
+        'd59fbae42019aedf227094ac49a46f50' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/marshal_uri_from_sapi.php',
+        'de95e0ac670b27c84ef8c5ac41fc1b34' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/normalize_server.php',
+        'b6c2870932b0250c10334a86dcb33c7f' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/normalize_uploaded_files.php',
+        'd02cf21124526632320d6f20b1bbf905' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/parse_cookie_header.php',
+        'd919fc9d5ad52cfb7f322f7fe36458ab' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/create_uploaded_file.legacy.php',
+        'e397f74f8af3b1e56166a6e99f216ee7' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/marshal_headers_from_sapi.legacy.php',
+        'd154b49fab8e4da34fb553a2d644918c' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/marshal_method_from_sapi.legacy.php',
+        '9d3db23ca418094bcf0b641a0c9559ed' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/marshal_protocol_version_from_sapi.legacy.php',
+        'b0b88a3b89caae681462c58ff19a7059' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/marshal_uri_from_sapi.legacy.php',
+        'cc8e14526dc240491e17a838cb78508c' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/normalize_server.legacy.php',
+        '786bf90caabc9e09b6ad4cc5ca8f0e30' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/normalize_uploaded_files.legacy.php',
+        '751a5a3f463e4be759be31748b61737c' => __DIR__ . '/..' . '/laminas/laminas-diactoros/src/functions/parse_cookie_header.legacy.php',
+        '8cff32064859f4559445b89279f3199c' => __DIR__ . '/..' . '/php-http/message/src/filters.php',
+        'a4a119a56e50fbb293281d9a48007e0e' => __DIR__ . '/..' . '/symfony/polyfill-php80/bootstrap.php',
+        'c964ee0ededf28c96ebd9db5099ef910' => __DIR__ . '/..' . '/guzzlehttp/promises/src/functions_include.php',
+        '37a3dc5111fe8f707ab4c132ef1dbc62' => __DIR__ . '/..' . '/guzzlehttp/guzzle/src/functions_include.php',
+        '09fc349b549513bf7f4291502426f919' => __DIR__ . '/..' . '/embed/embed/src/functions.php',
+    );
+
+    public static $prefixLengthsPsr4 = array (
+        'S' => 
+        array (
+            'Symfony\\Polyfill\\Php80\\' => 23,
+            'Symfony\\Component\\OptionsResolver\\' => 34,
+        ),
+        'P' => 
+        array (
+            'Psr\\Http\\Message\\' => 17,
+            'Psr\\Http\\Client\\' => 16,
+            'Psr\\Cache\\' => 10,
+        ),
+        'M' => 
+        array (
+            'ML\\JsonLD\\' => 10,
+        ),
+        'L' => 
+        array (
+            'Laminas\\Diactoros\\' => 18,
+        ),
+        'H' => 
+        array (
+            'Http\\Promise\\' => 13,
+            'Http\\Message\\MultipartStream\\' => 29,
+            'Http\\Message\\' => 13,
+            'Http\\Factory\\Guzzle\\' => 20,
+            'Http\\Discovery\\' => 15,
+            'Http\\Client\\Common\\Plugin\\' => 26,
+            'Http\\Client\\Common\\' => 19,
+            'Http\\Client\\' => 12,
+            'HtmlParser\\' => 11,
+        ),
+        'G' => 
+        array (
+            'GuzzleHttp\\Psr7\\' => 16,
+            'GuzzleHttp\\Promise\\' => 19,
+            'GuzzleHttp\\' => 11,
+            'Grandel\\' => 8,
+            'Github\\' => 7,
+        ),
+        'E' => 
+        array (
+            'Embed\\' => 6,
+        ),
+        'C' => 
+        array (
+            'Composer\\CaBundle\\' => 18,
+            'Clue\\StreamFilter\\' => 18,
+        ),
+    );
+
+    public static $prefixDirsPsr4 = array (
+        'Symfony\\Polyfill\\Php80\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/symfony/polyfill-php80',
+        ),
+        'Symfony\\Component\\OptionsResolver\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/symfony/options-resolver',
+        ),
+        'Psr\\Http\\Message\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/psr/http-factory/src',
+            1 => __DIR__ . '/..' . '/psr/http-message/src',
+        ),
+        'Psr\\Http\\Client\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/psr/http-client/src',
+        ),
+        'Psr\\Cache\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/psr/cache/src',
+        ),
+        'ML\\JsonLD\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/ml/json-ld',
+        ),
+        'Laminas\\Diactoros\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/laminas/laminas-diactoros/src',
+        ),
+        'Http\\Promise\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/php-http/promise/src',
+        ),
+        'Http\\Message\\MultipartStream\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/php-http/multipart-stream-builder/src',
+        ),
+        'Http\\Message\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/php-http/message/src',
+            1 => __DIR__ . '/..' . '/php-http/message-factory/src',
+        ),
+        'Http\\Factory\\Guzzle\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/http-interop/http-factory-guzzle/src',
+        ),
+        'Http\\Discovery\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/php-http/discovery/src',
+        ),
+        'Http\\Client\\Common\\Plugin\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/php-http/cache-plugin/src',
+        ),
+        'Http\\Client\\Common\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/php-http/client-common/src',
+        ),
+        'Http\\Client\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/php-http/httplug/src',
+        ),
+        'HtmlParser\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/oscarotero/html-parser/src',
+        ),
+        'GuzzleHttp\\Psr7\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/guzzlehttp/psr7/src',
+        ),
+        'GuzzleHttp\\Promise\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/guzzlehttp/promises/src',
+        ),
+        'GuzzleHttp\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/guzzlehttp/guzzle/src',
+        ),
+        'Grandel\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/grandel/include-directory/src',
+        ),
+        'Github\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/knplabs/github-api/lib/Github',
+        ),
+        'Embed\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/embed/embed/src',
+        ),
+        'Composer\\CaBundle\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/composer/ca-bundle/src',
+        ),
+        'Clue\\StreamFilter\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/clue/stream-filter/src',
+        ),
+    );
+
+    public static $prefixesPsr0 = array (
+        'M' => 
+        array (
+            'ML\\IRI' => 
+            array (
+                0 => __DIR__ . '/..' . '/ml/iri',
+            ),
+        ),
+    );
+
+    public static $classMap = array (
+        'Attribute' => __DIR__ . '/..' . '/symfony/polyfill-php80/Resources/stubs/Attribute.php',
+        'Composer\\InstalledVersions' => __DIR__ . '/..' . '/composer/InstalledVersions.php',
+        'Stringable' => __DIR__ . '/..' . '/symfony/polyfill-php80/Resources/stubs/Stringable.php',
+        'UnhandledMatchError' => __DIR__ . '/..' . '/symfony/polyfill-php80/Resources/stubs/UnhandledMatchError.php',
+        'ValueError' => __DIR__ . '/..' . '/symfony/polyfill-php80/Resources/stubs/ValueError.php',
+    );
+
+    public static function getInitializer(ClassLoader $loader)
+    {
+        return \Closure::bind(function () use ($loader) {
+            $loader->prefixLengthsPsr4 = ComposerStaticInit5f3db9fc1d0cf1dd6a77a1d84501b4b1::$prefixLengthsPsr4;
+            $loader->prefixDirsPsr4 = ComposerStaticInit5f3db9fc1d0cf1dd6a77a1d84501b4b1::$prefixDirsPsr4;
+            $loader->prefixesPsr0 = ComposerStaticInit5f3db9fc1d0cf1dd6a77a1d84501b4b1::$prefixesPsr0;
+            $loader->classMap = ComposerStaticInit5f3db9fc1d0cf1dd6a77a1d84501b4b1::$classMap;
+
+        }, null, ClassLoader::class);
+    }
+}

vendor/composer/ca-bundle/LICENSE

@@ -0,0 +1,19 @@
+Copyright (C) 2016 Composer
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/composer/ca-bundle/README.md

@@ -0,0 +1,85 @@
+composer/ca-bundle
+==================
+
+Small utility library that lets you find a path to the system CA bundle,
+and includes a fallback to the Mozilla CA bundle.
+
+Originally written as part of [composer/composer](https://github.com/composer/composer),
+now extracted and made available as a stand-alone library.
+
+
+Installation
+------------
+
+Install the latest version with:
+
+```bash
+$ composer require composer/ca-bundle
+```
+
+
+Requirements
+------------
+
+* PHP 5.3.2 is required but using the latest version of PHP is highly recommended.
+
+
+Basic usage
+-----------
+
+### `Composer\CaBundle\CaBundle`
+
+- `CaBundle::getSystemCaRootBundlePath()`: Returns the system CA bundle path, or a path to the bundled one as fallback
+- `CaBundle::getBundledCaBundlePath()`: Returns the path to the bundled CA file
+- `CaBundle::validateCaFile($filename)`: Validates a CA file using openssl_x509_parse only if it is safe to use
+- `CaBundle::isOpensslParseSafe()`: Test if it is safe to use the PHP function openssl_x509_parse()
+- `CaBundle::reset()`: Resets the static caches
+
+
+#### To use with curl
+
+```php
+$curl = curl_init("https://example.org/");
+
+$caPathOrFile = \Composer\CaBundle\CaBundle::getSystemCaRootBundlePath();
+if (is_dir($caPathOrFile)) {
+    curl_setopt($curl, CURLOPT_CAPATH, $caPathOrFile);
+} else {
+    curl_setopt($curl, CURLOPT_CAINFO, $caPathOrFile);
+}
+
+$result = curl_exec($curl);
+```
+
+#### To use with php streams
+
+```php
+$opts = array(
+    'http' => array(
+        'method' => "GET"
+    )
+);
+
+$caPathOrFile = \Composer\CaBundle\CaBundle::getSystemCaRootBundlePath();
+if (is_dir($caPathOrFile)) {
+    $opts['ssl']['capath'] = $caPathOrFile;
+} else {
+    $opts['ssl']['cafile'] = $caPathOrFile;
+}
+
+$context = stream_context_create($opts);
+$result = file_get_contents('https://example.com', false, $context);
+```
+
+#### To use with Guzzle
+
+```php
+$client = new \GuzzleHttp\Client([
+    \GuzzleHttp\RequestOptions::VERIFY => \Composer\CaBundle\CaBundle::getSystemCaRootBundlePath()
+]);
+```
+
+License
+-------
+
+composer/ca-bundle is licensed under the MIT License, see the LICENSE file for details.

vendor/composer/ca-bundle/composer.json

@@ -0,0 +1,54 @@
+{
+    "name": "composer/ca-bundle",
+    "description": "Lets you find a path to the system CA bundle, and includes a fallback to the Mozilla CA bundle.",
+    "type": "library",
+    "license": "MIT",
+    "keywords": [
+        "cabundle",
+        "cacert",
+        "certificate",
+        "ssl",
+        "tls"
+    ],
+    "authors": [
+        {
+            "name": "Jordi Boggiano",
+            "email": "j.boggiano@seld.be",
+            "homepage": "http://seld.be"
+        }
+    ],
+    "support": {
+        "irc": "irc://irc.freenode.org/composer",
+        "issues": "https://github.com/composer/ca-bundle/issues"
+    },
+    "require": {
+        "ext-openssl": "*",
+        "ext-pcre": "*",
+        "php": "^5.3.2 || ^7.0 || ^8.0"
+    },
+    "require-dev": {
+        "symfony/phpunit-bridge": "^4.2 || ^5",
+        "phpstan/phpstan": "^0.12.55",
+        "psr/log": "^1.0",
+        "symfony/process": "^2.5 || ^3.0 || ^4.0 || ^5.0 || ^6.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Composer\\CaBundle\\": "src"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Composer\\CaBundle\\": "tests"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-main": "1.x-dev"
+        }
+    },
+    "scripts": {
+        "test": "SYMFONY_PHPUNIT_REMOVE_RETURN_TYPEHINT=1 vendor/bin/simple-phpunit",
+        "phpstan": "vendor/bin/phpstan analyse"
+    }
+}

vendor/composer/ca-bundle/src/CaBundle.php

@@ -0,0 +1,431 @@
+<?php
+
+/*
+ * This file is part of composer/ca-bundle.
+ *
+ * (c) Composer <https://github.com/composer>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Composer\CaBundle;
+
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Process\PhpProcess;
+
+/**
+ * @author Chris Smith <chris@cs278.org>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class CaBundle
+{
+    /** @var string|null */
+    private static $caPath;
+    /** @var array<string, bool> */
+    private static $caFileValidity = array();
+    /** @var bool|null */
+    private static $useOpensslParse;
+
+    /**
+     * Returns the system CA bundle path, or a path to the bundled one
+     *
+     * This method was adapted from Sslurp.
+     * https://github.com/EvanDotPro/Sslurp
+     *
+     * (c) Evan Coury <me@evancoury.com>
+     *
+     * For the full copyright and license information, please see below:
+     *
+     * Copyright (c) 2013, Evan Coury
+     * All rights reserved.
+     *
+     * Redistribution and use in source and binary forms, with or without modification,
+     * are permitted provided that the following conditions are met:
+     *
+     *     * Redistributions of source code must retain the above copyright notice,
+     *       this list of conditions and the following disclaimer.
+     *
+     *     * Redistributions in binary form must reproduce the above copyright notice,
+     *       this list of conditions and the following disclaimer in the documentation
+     *       and/or other materials provided with the distribution.
+     *
+     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+     * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+     * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+     * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+     * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+     * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+     * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+     *
+     * @param  LoggerInterface $logger optional logger for information about which CA files were loaded
+     * @return string          path to a CA bundle file or directory
+     */
+    public static function getSystemCaRootBundlePath(LoggerInterface $logger = null)
+    {
+        if (self::$caPath !== null) {
+            return self::$caPath;
+        }
+        $caBundlePaths = array();
+
+        // If SSL_CERT_FILE env variable points to a valid certificate/bundle, use that.
+        // This mimics how OpenSSL uses the SSL_CERT_FILE env variable.
+        $caBundlePaths[] = self::getEnvVariable('SSL_CERT_FILE');
+
+        // If SSL_CERT_DIR env variable points to a valid certificate/bundle, use that.
+        // This mimics how OpenSSL uses the SSL_CERT_FILE env variable.
+        $caBundlePaths[] = self::getEnvVariable('SSL_CERT_DIR');
+
+        $caBundlePaths[] = ini_get('openssl.cafile');
+        $caBundlePaths[] = ini_get('openssl.capath');
+
+        $otherLocations = array(
+            '/etc/pki/tls/certs/ca-bundle.crt', // Fedora, RHEL, CentOS (ca-certificates package)
+            '/etc/ssl/certs/ca-certificates.crt', // Debian, Ubuntu, Gentoo, Arch Linux (ca-certificates package)
+            '/etc/ssl/ca-bundle.pem', // SUSE, openSUSE (ca-certificates package)
+            '/usr/local/share/certs/ca-root-nss.crt', // FreeBSD (ca_root_nss_package)
+            '/usr/ssl/certs/ca-bundle.crt', // Cygwin
+            '/opt/local/share/curl/curl-ca-bundle.crt', // OS X macports, curl-ca-bundle package
+            '/usr/local/share/curl/curl-ca-bundle.crt', // Default cURL CA bunde path (without --with-ca-bundle option)
+            '/usr/share/ssl/certs/ca-bundle.crt', // Really old RedHat?
+            '/etc/ssl/cert.pem', // OpenBSD
+            '/usr/local/etc/ssl/cert.pem', // FreeBSD 10.x
+            '/usr/local/etc/openssl/cert.pem', // OS X homebrew, openssl package
+            '/usr/local/etc/openssl@1.1/cert.pem', // OS X homebrew, openssl@1.1 package
+        );
+
+        foreach($otherLocations as $location) {
+            $otherLocations[] = dirname($location);
+        }
+
+        $caBundlePaths = array_merge($caBundlePaths, $otherLocations);
+
+        foreach ($caBundlePaths as $caBundle) {
+            if ($caBundle && self::caFileUsable($caBundle, $logger)) {
+                return self::$caPath = $caBundle;
+            }
+
+            if ($caBundle && self::caDirUsable($caBundle, $logger)) {
+                return self::$caPath = $caBundle;
+            }
+        }
+
+        return self::$caPath = static::getBundledCaBundlePath(); // Bundled CA file, last resort
+    }
+
+    /**
+     * Returns the path to the bundled CA file
+     *
+     * In case you don't want to trust the user or the system, you can use this directly
+     *
+     * @return string path to a CA bundle file
+     */
+    public static function getBundledCaBundlePath()
+    {
+        $caBundleFile = __DIR__.'/../res/cacert.pem';
+
+        // cURL does not understand 'phar://' paths
+        // see https://github.com/composer/ca-bundle/issues/10
+        if (0 === strpos($caBundleFile, 'phar://')) {
+            $tempCaBundleFile = tempnam(sys_get_temp_dir(), 'openssl-ca-bundle-');
+            if (false === $tempCaBundleFile) {
+                throw new \RuntimeException('Could not create a temporary file to store the bundled CA file');
+            }
+
+            file_put_contents(
+                $tempCaBundleFile,
+                file_get_contents($caBundleFile)
+            );
+
+            register_shutdown_function(function() use ($tempCaBundleFile) {
+                @unlink($tempCaBundleFile);
+            });
+
+            $caBundleFile = $tempCaBundleFile;
+        }
+
+        return $caBundleFile;
+    }
+
+    /**
+     * Validates a CA file using opensl_x509_parse only if it is safe to use
+     *
+     * @param string          $filename
+     * @param LoggerInterface $logger   optional logger for information about which CA files were loaded
+     *
+     * @return bool
+     */
+    public static function validateCaFile($filename, LoggerInterface $logger = null)
+    {
+        static $warned = false;
+
+        if (isset(self::$caFileValidity[$filename])) {
+            return self::$caFileValidity[$filename];
+        }
+
+        $contents = file_get_contents($filename);
+
+        // assume the CA is valid if php is vulnerable to
+        // https://www.sektioneins.de/advisories/advisory-012013-php-openssl_x509_parse-memory-corruption-vulnerability.html
+        if (!static::isOpensslParseSafe()) {
+            if (!$warned && $logger) {
+                $logger->warning(sprintf(
+                    'Your version of PHP, %s, is affected by CVE-2013-6420 and cannot safely perform certificate validation, we strongly suggest you upgrade.',
+                    PHP_VERSION
+                ));
+                $warned = true;
+            }
+
+            $isValid = !empty($contents);
+        } elseif (is_string($contents) && strlen($contents) > 0) {
+            $contents = preg_replace("/^(\\-+(?:BEGIN|END))\\s+TRUSTED\\s+(CERTIFICATE\\-+)\$/m", '$1 $2', $contents);
+            if (null === $contents) {
+                // regex extraction failed
+                $isValid = false;
+            } else {
+                $isValid = (bool) openssl_x509_parse($contents);
+            }
+        } else {
+            $isValid = false;
+        }
+
+        if ($logger) {
+            $logger->debug('Checked CA file '.realpath($filename).': '.($isValid ? 'valid' : 'invalid'));
+        }
+
+        return self::$caFileValidity[$filename] = $isValid;
+    }
+
+    /**
+     * Test if it is safe to use the PHP function openssl_x509_parse().
+     *
+     * This checks if OpenSSL extensions is vulnerable to remote code execution
+     * via the exploit documented as CVE-2013-6420.
+     *
+     * @return bool
+     */
+    public static function isOpensslParseSafe()
+    {
+        if (null !== self::$useOpensslParse) {
+            return self::$useOpensslParse;
+        }
+
+        if (PHP_VERSION_ID >= 50600) {
+            return self::$useOpensslParse = true;
+        }
+
+        // Vulnerable:
+        // PHP 5.3.0 - PHP 5.3.27
+        // PHP 5.4.0 - PHP 5.4.22
+        // PHP 5.5.0 - PHP 5.5.6
+        if (
+               (PHP_VERSION_ID < 50400 && PHP_VERSION_ID >= 50328)
+            || (PHP_VERSION_ID < 50500 && PHP_VERSION_ID >= 50423)
+            || PHP_VERSION_ID >= 50507
+        ) {
+            // This version of PHP has the fix for CVE-2013-6420 applied.
+            return self::$useOpensslParse = true;
+        }
+
+        if (defined('PHP_WINDOWS_VERSION_BUILD')) {
+            // Windows is probably insecure in this case.
+            return self::$useOpensslParse = false;
+        }
+
+        $compareDistroVersionPrefix = function ($prefix, $fixedVersion) {
+            $regex = '{^'.preg_quote($prefix).'([0-9]+)$}';
+
+            if (preg_match($regex, PHP_VERSION, $m)) {
+                return ((int) $m[1]) >= $fixedVersion;
+            }
+
+            return false;
+        };
+
+        // Hard coded list of PHP distributions with the fix backported.
+        if (
+            $compareDistroVersionPrefix('5.3.3-7+squeeze', 18) // Debian 6 (Squeeze)
+            || $compareDistroVersionPrefix('5.4.4-14+deb7u', 7) // Debian 7 (Wheezy)
+            || $compareDistroVersionPrefix('5.3.10-1ubuntu3.', 9) // Ubuntu 12.04 (Precise)
+        ) {
+            return self::$useOpensslParse = true;
+        }
+
+        // Symfony Process component is missing so we assume it is unsafe at this point
+        if (!class_exists('Symfony\Component\Process\PhpProcess')) {
+            return self::$useOpensslParse = false;
+        }
+
+        // This is where things get crazy, because distros backport security
+        // fixes the chances are on NIX systems the fix has been applied but
+        // it's not possible to verify that from the PHP version.
+        //
+        // To verify exec a new PHP process and run the issue testcase with
+        // known safe input that replicates the bug.
+
+        // Based on testcase in https://github.com/php/php-src/commit/c1224573c773b6845e83505f717fbf820fc18415
+        // changes in https://github.com/php/php-src/commit/76a7fd893b7d6101300cc656058704a73254d593
+        $cert = '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';
+        $script = <<<'EOT'
+
+error_reporting(-1);
+$info = openssl_x509_parse(base64_decode('%s'));
+var_dump(PHP_VERSION, $info['issuer']['emailAddress'], $info['validFrom_time_t']);
+
+EOT;
+        $script = '<'."?php\n".sprintf($script, $cert);
+
+        try {
+            $process = new PhpProcess($script);
+            $process->mustRun();
+        } catch (\Exception $e) {
+            // In the case of any exceptions just accept it is not possible to
+            // determine the safety of openssl_x509_parse and bail out.
+            return self::$useOpensslParse = false;
+        }
+
+        $output = preg_split('{\r?\n}', trim($process->getOutput()));
+        $errorOutput = trim($process->getErrorOutput());
+
+        if (
+            is_array($output)
+            && count($output) === 3
+            && $output[0] === sprintf('string(%d) "%s"', strlen(PHP_VERSION), PHP_VERSION)
+            && $output[1] === 'string(27) "stefan.esser@sektioneins.de"'
+            && $output[2] === 'int(-1)'
+            && preg_match('{openssl_x509_parse\(\): illegal (?:ASN1 data type for|length in) timestamp in - on line \d+}', $errorOutput)
+        ) {
+            // This PHP has the fix backported probably by a distro security team.
+            return self::$useOpensslParse = true;
+        }
+
+        return self::$useOpensslParse = false;
+    }
+
+    /**
+     * Resets the static caches
+     * @return void
+     */
+    public static function reset()
+    {
+        self::$caFileValidity = array();
+        self::$caPath = null;
+        self::$useOpensslParse = null;
+    }
+
+    /**
+     * @param  string $name
+     * @return string|false
+     */
+    private static function getEnvVariable($name)
+    {
+        if (isset($_SERVER[$name])) {
+            return (string) $_SERVER[$name];
+        }
+
+        if (PHP_SAPI === 'cli' && ($value = getenv($name)) !== false && $value !== null) {
+            return (string) $value;
+        }
+
+        return false;
+    }
+
+    /**
+     * @param  string|false $certFile
+     * @param  LoggerInterface|null $logger
+     * @return bool
+     */
+    private static function caFileUsable($certFile, LoggerInterface $logger = null)
+    {
+        return $certFile
+            && static::isFile($certFile, $logger)
+            && static::isReadable($certFile, $logger)
+            && static::validateCaFile($certFile, $logger);
+    }
+
+    /**
+     * @param  string|false $certDir
+     * @param  LoggerInterface|null $logger
+     * @return bool
+     */
+    private static function caDirUsable($certDir, LoggerInterface $logger = null)
+    {
+        return $certDir
+            && static::isDir($certDir, $logger)
+            && static::isReadable($certDir, $logger)
+            && static::glob($certDir . '/*', $logger);
+    }
+
+    /**
+     * @param  string $certFile
+     * @param  LoggerInterface|null $logger
+     * @return bool
+     */
+    private static function isFile($certFile, LoggerInterface $logger = null)
+    {
+        $isFile = @is_file($certFile);
+        if (!$isFile && $logger) {
+            $logger->debug(sprintf('Checked CA file %s does not exist or it is not a file.', $certFile));
+        }
+
+        return $isFile;
+    }
+
+    /**
+     * @param  string $certDir
+     * @param  LoggerInterface|null $logger
+     * @return bool
+     */
+    private static function isDir($certDir, LoggerInterface $logger = null)
+    {
+        $isDir = @is_dir($certDir);
+        if (!$isDir && $logger) {
+            $logger->debug(sprintf('Checked directory %s does not exist or it is not a directory.', $certDir));
+        }
+
+        return $isDir;
+    }
+
+    /**
+     * @param  string $certFileOrDir
+     * @param  LoggerInterface|null $logger
+     * @return bool
+     */
+    private static function isReadable($certFileOrDir, LoggerInterface $logger = null)
+    {
+        $isReadable = @is_readable($certFileOrDir);
+        if (!$isReadable && $logger) {
+            $logger->debug(sprintf('Checked file or directory %s is not readable.', $certFileOrDir));
+        }
+
+        return $isReadable;
+    }
+
+    /**
+     * @param  string $pattern
+     * @param  LoggerInterface|null $logger
+     * @return bool
+     */
+    private static function glob($pattern, LoggerInterface $logger = null)
+    {
+        $certs = glob($pattern);
+        if ($certs === false) {
+            if ($logger) {
+                $logger->debug(sprintf("An error occurred while trying to find certificates for pattern: %s", $pattern));
+            }
+            return false;
+        }
+
+        if (count($certs) === 0) {
+            if ($logger) {
+                $logger->debug(sprintf("No CA files found for pattern: %s", $pattern));
+            }
+            return false;
+        }
+
+        return true;
+    }
+}

vendor/composer/installed.php

@@ -0,0 +1,309 @@
+<?php return array(
+    'root' => array(
+        'pretty_version' => 'dev-develop',
+        'version' => 'dev-develop',
+        'type' => 'library',
+        'install_path' => __DIR__ . '/../../',
+        'aliases' => array(),
+        'reference' => '4d22238cee98274d2098f0cbf116ad8e0581f24a',
+        'name' => '__root__',
+        'dev' => false,
+    ),
+    'versions' => array(
+        '__root__' => array(
+            'pretty_version' => 'dev-develop',
+            'version' => 'dev-develop',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../../',
+            'aliases' => array(),
+            'reference' => '4d22238cee98274d2098f0cbf116ad8e0581f24a',
+            'dev_requirement' => false,
+        ),
+        'clue/stream-filter' => array(
+            'pretty_version' => 'v1.5.0',
+            'version' => '1.5.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../clue/stream-filter',
+            'aliases' => array(),
+            'reference' => 'aeb7d8ea49c7963d3b581378955dbf5bc49aa320',
+            'dev_requirement' => false,
+        ),
+        'composer/ca-bundle' => array(
+            'pretty_version' => '1.3.1',
+            'version' => '1.3.1.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/./ca-bundle',
+            'aliases' => array(),
+            'reference' => '4c679186f2aca4ab6a0f1b0b9cf9252decb44d0b',
+            'dev_requirement' => false,
+        ),
+        'embed/embed' => array(
+            'pretty_version' => 'v4.4.0',
+            'version' => '4.4.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../embed/embed',
+            'aliases' => array(),
+            'reference' => '24fe9376e8de48c536ddaddf0025ae39cae5ddfe',
+            'dev_requirement' => false,
+        ),
+        'grandel/include-directory' => array(
+            'pretty_version' => 'v0.2.2',
+            'version' => '0.2.2.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../grandel/include-directory',
+            'aliases' => array(),
+            'reference' => 'a5c830e8f1527c818b521ab18f2accecb02f9919',
+            'dev_requirement' => false,
+        ),
+        'guzzlehttp/guzzle' => array(
+            'pretty_version' => '7.4.1',
+            'version' => '7.4.1.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../guzzlehttp/guzzle',
+            'aliases' => array(),
+            'reference' => 'ee0a041b1760e6a53d2a39c8c34115adc2af2c79',
+            'dev_requirement' => false,
+        ),
+        'guzzlehttp/promises' => array(
+            'pretty_version' => '1.5.1',
+            'version' => '1.5.1.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../guzzlehttp/promises',
+            'aliases' => array(),
+            'reference' => 'fe752aedc9fd8fcca3fe7ad05d419d32998a06da',
+            'dev_requirement' => false,
+        ),
+        'guzzlehttp/psr7' => array(
+            'pretty_version' => '2.1.0',
+            'version' => '2.1.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../guzzlehttp/psr7',
+            'aliases' => array(),
+            'reference' => '089edd38f5b8abba6cb01567c2a8aaa47cec4c72',
+            'dev_requirement' => false,
+        ),
+        'http-interop/http-factory-guzzle' => array(
+            'pretty_version' => '1.2.0',
+            'version' => '1.2.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../http-interop/http-factory-guzzle',
+            'aliases' => array(),
+            'reference' => '8f06e92b95405216b237521cc64c804dd44c4a81',
+            'dev_requirement' => false,
+        ),
+        'knplabs/github-api' => array(
+            'pretty_version' => 'v3.4.0',
+            'version' => '3.4.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../knplabs/github-api',
+            'aliases' => array(),
+            'reference' => 'bddf0f5e686a2dc72ca0ec642e3b487b08d841ce',
+            'dev_requirement' => false,
+        ),
+        'laminas/laminas-diactoros' => array(
+            'pretty_version' => '2.8.0',
+            'version' => '2.8.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../laminas/laminas-diactoros',
+            'aliases' => array(),
+            'reference' => '0c26ef1d95b6d7e6e3943a243ba3dc0797227199',
+            'dev_requirement' => false,
+        ),
+        'ml/iri' => array(
+            'pretty_version' => '1.1.4',
+            'version' => '1.1.4.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../ml/iri/ML/IRI',
+            'aliases' => array(),
+            'reference' => 'cbd44fa913e00ea624241b38cefaa99da8d71341',
+            'dev_requirement' => false,
+        ),
+        'ml/json-ld' => array(
+            'pretty_version' => '1.2.0',
+            'version' => '1.2.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../ml/json-ld',
+            'aliases' => array(),
+            'reference' => 'c74a1aed5979ed1cfb1be35a55a305fd30e30b93',
+            'dev_requirement' => false,
+        ),
+        'oscarotero/html-parser' => array(
+            'pretty_version' => 'v0.1.6',
+            'version' => '0.1.6.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../oscarotero/html-parser',
+            'aliases' => array(),
+            'reference' => 'b61e92f634d0dc184339d24630a6968d3ac64ded',
+            'dev_requirement' => false,
+        ),
+        'php-http/cache-plugin' => array(
+            'pretty_version' => '1.7.5',
+            'version' => '1.7.5.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../php-http/cache-plugin',
+            'aliases' => array(),
+            'reference' => '63bc3f7242825c9a817db8f78e4c9703b0c471e2',
+            'dev_requirement' => false,
+        ),
+        'php-http/client-common' => array(
+            'pretty_version' => '2.5.0',
+            'version' => '2.5.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../php-http/client-common',
+            'aliases' => array(),
+            'reference' => 'd135751167d57e27c74de674d6a30cef2dc8e054',
+            'dev_requirement' => false,
+        ),
+        'php-http/discovery' => array(
+            'pretty_version' => '1.14.1',
+            'version' => '1.14.1.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../php-http/discovery',
+            'aliases' => array(),
+            'reference' => 'de90ab2b41d7d61609f504e031339776bc8c7223',
+            'dev_requirement' => false,
+        ),
+        'php-http/httplug' => array(
+            'pretty_version' => '2.2.0',
+            'version' => '2.2.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../php-http/httplug',
+            'aliases' => array(),
+            'reference' => '191a0a1b41ed026b717421931f8d3bd2514ffbf9',
+            'dev_requirement' => false,
+        ),
+        'php-http/message' => array(
+            'pretty_version' => '1.12.0',
+            'version' => '1.12.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../php-http/message',
+            'aliases' => array(),
+            'reference' => '39eb7548be982a81085fe5a6e2a44268cd586291',
+            'dev_requirement' => false,
+        ),
+        'php-http/message-factory' => array(
+            'pretty_version' => 'v1.0.2',
+            'version' => '1.0.2.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../php-http/message-factory',
+            'aliases' => array(),
+            'reference' => 'a478cb11f66a6ac48d8954216cfed9aa06a501a1',
+            'dev_requirement' => false,
+        ),
+        'php-http/message-factory-implementation' => array(
+            'dev_requirement' => false,
+            'provided' => array(
+                0 => '1.0',
+            ),
+        ),
+        'php-http/multipart-stream-builder' => array(
+            'pretty_version' => '1.2.0',
+            'version' => '1.2.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../php-http/multipart-stream-builder',
+            'aliases' => array(),
+            'reference' => '11c1d31f72e01c738bbce9e27649a7cca829c30e',
+            'dev_requirement' => false,
+        ),
+        'php-http/promise' => array(
+            'pretty_version' => '1.1.0',
+            'version' => '1.1.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../php-http/promise',
+            'aliases' => array(),
+            'reference' => '4c4c1f9b7289a2ec57cde7f1e9762a5789506f88',
+            'dev_requirement' => false,
+        ),
+        'psr/cache' => array(
+            'pretty_version' => '2.0.0',
+            'version' => '2.0.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../psr/cache',
+            'aliases' => array(),
+            'reference' => '213f9dbc5b9bfbc4f8db86d2838dc968752ce13b',
+            'dev_requirement' => false,
+        ),
+        'psr/http-client' => array(
+            'pretty_version' => '1.0.1',
+            'version' => '1.0.1.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../psr/http-client',
+            'aliases' => array(),
+            'reference' => '2dfb5f6c5eff0e91e20e913f8c5452ed95b86621',
+            'dev_requirement' => false,
+        ),
+        'psr/http-client-implementation' => array(
+            'dev_requirement' => false,
+            'provided' => array(
+                0 => '1.0',
+            ),
+        ),
+        'psr/http-factory' => array(
+            'pretty_version' => '1.0.1',
+            'version' => '1.0.1.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../psr/http-factory',
+            'aliases' => array(),
+            'reference' => '12ac7fcd07e5b077433f5f2bee95b3a771bf61be',
+            'dev_requirement' => false,
+        ),
+        'psr/http-factory-implementation' => array(
+            'dev_requirement' => false,
+            'provided' => array(
+                0 => '1.0',
+                1 => '^1.0',
+            ),
+        ),
+        'psr/http-message' => array(
+            'pretty_version' => '1.0.1',
+            'version' => '1.0.1.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../psr/http-message',
+            'aliases' => array(),
+            'reference' => 'f6561bf28d520154e4b0ec72be95418abe6d9363',
+            'dev_requirement' => false,
+        ),
+        'psr/http-message-implementation' => array(
+            'dev_requirement' => false,
+            'provided' => array(
+                0 => '1.0',
+            ),
+        ),
+        'ralouphie/getallheaders' => array(
+            'pretty_version' => '3.0.3',
+            'version' => '3.0.3.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../ralouphie/getallheaders',
+            'aliases' => array(),
+            'reference' => '120b605dfeb996808c31b6477290a714d356e822',
+            'dev_requirement' => false,
+        ),
+        'symfony/deprecation-contracts' => array(
+            'pretty_version' => 'v2.5.0',
+            'version' => '2.5.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../symfony/deprecation-contracts',
+            'aliases' => array(),
+            'reference' => '6f981ee24cf69ee7ce9736146d1c57c2780598a8',
+            'dev_requirement' => false,
+        ),
+        'symfony/options-resolver' => array(
+            'pretty_version' => 'v6.0.0',
+            'version' => '6.0.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../symfony/options-resolver',
+            'aliases' => array(),
+            'reference' => 'be0facf48a42a232d6c0daadd76e4eb5657a4798',
+            'dev_requirement' => false,
+        ),
+        'symfony/polyfill-php80' => array(
+            'pretty_version' => 'v1.24.0',
+            'version' => '1.24.0.0',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../symfony/polyfill-php80',
+            'aliases' => array(),
+            'reference' => '57b712b08eddb97c762a8caa32c84e037892d2e9',
+            'dev_requirement' => false,
+        ),
+    ),
+);

vendor/composer/platform_check.php

@@ -0,0 +1,26 @@
+<?php
+
+// platform_check.php @generated by Composer
+
+$issues = array();
+
+if (!(PHP_VERSION_ID >= 80002)) {
+    $issues[] = 'Your Composer dependencies require a PHP version ">= 8.0.2". You are running ' . PHP_VERSION . '.';
+}
+
+if ($issues) {
+    if (!headers_sent()) {
+        header('HTTP/1.1 500 Internal Server Error');
+    }
+    if (!ini_get('display_errors')) {
+        if (PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg') {
+            fwrite(STDERR, 'Composer detected issues in your platform:' . PHP_EOL.PHP_EOL . implode(PHP_EOL, $issues) . PHP_EOL.PHP_EOL);
+        } elseif (!headers_sent()) {
+            echo 'Composer detected issues in your platform:' . PHP_EOL.PHP_EOL . str_replace('You are running '.PHP_VERSION.'.', '', implode(PHP_EOL, $issues)) . PHP_EOL.PHP_EOL;
+        }
+    }
+    trigger_error(
+        'Composer detected issues in your platform: ' . implode(' ', $issues),
+        E_USER_ERROR
+    );
+}

vendor/guzzlehttp/guzzle/LICENSE

@@ -0,0 +1,27 @@
+The MIT License (MIT)
+
+Copyright (c) 2011 Michael Dowling <mtdowling@gmail.com>
+Copyright (c) 2012 Jeremy Lindblom <jeremeamia@gmail.com>
+Copyright (c) 2014 Graham Campbell <hello@gjcampbell.co.uk>
+Copyright (c) 2015 Márk Sági-Kazár <mark.sagikazar@gmail.com>
+Copyright (c) 2015 Tobias Schultze <webmaster@tubo-world.de>
+Copyright (c) 2016 Tobias Nyholm <tobias.nyholm@gmail.com>
+Copyright (c) 2016 George Mponos <gmponos@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/guzzlehttp/guzzle/README.md

@@ -0,0 +1,94 @@
+![Guzzle](.github/logo.png?raw=true)
+
+# Guzzle, PHP HTTP client
+
+[![Latest Version](https://img.shields.io/github/release/guzzle/guzzle.svg?style=flat-square)](https://github.com/guzzle/guzzle/releases)
+[![Build Status](https://img.shields.io/github/workflow/status/guzzle/guzzle/CI?label=ci%20build&style=flat-square)](https://github.com/guzzle/guzzle/actions?query=workflow%3ACI)
+[![Total Downloads](https://img.shields.io/packagist/dt/guzzlehttp/guzzle.svg?style=flat-square)](https://packagist.org/packages/guzzlehttp/guzzle)
+
+Guzzle is a PHP HTTP client that makes it easy to send HTTP requests and
+trivial to integrate with web services.
+
+- Simple interface for building query strings, POST requests, streaming large
+  uploads, streaming large downloads, using HTTP cookies, uploading JSON data,
+  etc...
+- Can send both synchronous and asynchronous requests using the same interface.
+- Uses PSR-7 interfaces for requests, responses, and streams. This allows you
+  to utilize other PSR-7 compatible libraries with Guzzle.
+- Supports PSR-18 allowing interoperability between other PSR-18 HTTP Clients.
+- Abstracts away the underlying HTTP transport, allowing you to write
+  environment and transport agnostic code; i.e., no hard dependency on cURL,
+  PHP streams, sockets, or non-blocking event loops.
+- Middleware system allows you to augment and compose client behavior.
+
+```php
+$client = new \GuzzleHttp\Client();
+$response = $client->request('GET', 'https://api.github.com/repos/guzzle/guzzle');
+
+echo $response->getStatusCode(); // 200
+echo $response->getHeaderLine('content-type'); // 'application/json; charset=utf8'
+echo $response->getBody(); // '{"id": 1420053, "name": "guzzle", ...}'
+
+// Send an asynchronous request.
+$request = new \GuzzleHttp\Psr7\Request('GET', 'http://httpbin.org');
+$promise = $client->sendAsync($request)->then(function ($response) {
+    echo 'I completed! ' . $response->getBody();
+});
+
+$promise->wait();
+```
+
+## Help and docs
+
+We use GitHub issues only to discuss bugs and new features. For support please refer to:
+
+- [Documentation](http://guzzlephp.org/)
+- [Stack Overflow](http://stackoverflow.com/questions/tagged/guzzle)
+- [#guzzle](https://app.slack.com/client/T0D2S9JCT/CE6UAAKL4) channel on [PHP-HTTP Slack](http://slack.httplug.io/)
+- [Gitter](https://gitter.im/guzzle/guzzle)
+
+
+## Installing Guzzle
+
+The recommended way to install Guzzle is through
+[Composer](https://getcomposer.org/).
+
+```bash
+composer require guzzlehttp/guzzle
+```
+
+
+## Version Guidance
+
+| Version | Status     | Packagist           | Namespace    | Repo                | Docs                | PSR-7 | PHP Version |
+|---------|------------|---------------------|--------------|---------------------|---------------------|-------|-------------|
+| 3.x     | EOL        | `guzzle/guzzle`     | `Guzzle`     | [v3][guzzle-3-repo] | [v3][guzzle-3-docs] | No    | >= 5.3.3    |
+| 4.x     | EOL        | `guzzlehttp/guzzle` | `GuzzleHttp` | [v4][guzzle-4-repo] | N/A                 | No    | >= 5.4      |
+| 5.x     | EOL        | `guzzlehttp/guzzle` | `GuzzleHttp` | [v5][guzzle-5-repo] | [v5][guzzle-5-docs] | No    | >= 5.4      |
+| 6.x     | Security fixes | `guzzlehttp/guzzle` | `GuzzleHttp` | [v6][guzzle-6-repo] | [v6][guzzle-6-docs] | Yes   | >= 5.5      |
+| 7.x     | Latest     | `guzzlehttp/guzzle` | `GuzzleHttp` | [v7][guzzle-7-repo] | [v7][guzzle-7-docs] | Yes   | >= 7.2      |
+
+[guzzle-3-repo]: https://github.com/guzzle/guzzle3
+[guzzle-4-repo]: https://github.com/guzzle/guzzle/tree/4.x
+[guzzle-5-repo]: https://github.com/guzzle/guzzle/tree/5.3
+[guzzle-6-repo]: https://github.com/guzzle/guzzle/tree/6.5
+[guzzle-7-repo]: https://github.com/guzzle/guzzle
+[guzzle-3-docs]: http://guzzle3.readthedocs.org
+[guzzle-5-docs]: http://docs.guzzlephp.org/en/5.3/
+[guzzle-6-docs]: http://docs.guzzlephp.org/en/6.5/
+[guzzle-7-docs]: http://docs.guzzlephp.org/en/latest/
+
+
+## Security
+
+If you discover a security vulnerability within this package, please send an email to security@tidelift.com. All security vulnerabilities will be promptly addressed. Please do not disclose security-related issues publicly until a fix has been announced. Please see [Security Policy](https://github.com/guzzle/guzzle/security/policy) for more information.
+
+## License
+
+Guzzle is made available under the MIT License (MIT). Please see [License File](LICENSE) for more information.
+
+## For Enterprise
+
+Available as part of the Tidelift Subscription
+
+The maintainers of Guzzle and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/packagist-guzzlehttp-guzzle?utm_source=packagist-guzzlehttp-guzzle&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)

vendor/guzzlehttp/guzzle/composer.json

@@ -0,0 +1,98 @@
+{
+    "name": "guzzlehttp/guzzle",
+    "description": "Guzzle is a PHP HTTP client library",
+    "keywords": [
+        "framework",
+        "http",
+        "rest",
+        "web service",
+        "curl",
+        "client",
+        "HTTP client",
+        "PSR-7",
+        "PSR-18"
+    ],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Graham Campbell",
+            "email": "hello@gjcampbell.co.uk",
+            "homepage": "https://github.com/GrahamCampbell"
+        },
+        {
+            "name": "Michael Dowling",
+            "email": "mtdowling@gmail.com",
+            "homepage": "https://github.com/mtdowling"
+        },
+        {
+            "name": "Jeremy Lindblom",
+            "email": "jeremeamia@gmail.com",
+            "homepage": "https://github.com/jeremeamia"
+        },
+        {
+            "name": "George Mponos",
+            "email": "gmponos@gmail.com",
+            "homepage": "https://github.com/gmponos"
+        },
+        {
+            "name": "Tobias Nyholm",
+            "email": "tobias.nyholm@gmail.com",
+            "homepage": "https://github.com/Nyholm"
+        },
+        {
+            "name": "Márk Sági-Kazár",
+            "email": "mark.sagikazar@gmail.com",
+            "homepage": "https://github.com/sagikazarmark"
+        },
+        {
+            "name": "Tobias Schultze",
+            "email": "webmaster@tubo-world.de",
+            "homepage": "https://github.com/Tobion"
+        }
+    ],
+    "require": {
+        "php": "^7.2.5 || ^8.0",
+        "ext-json": "*",
+        "guzzlehttp/promises": "^1.5",
+        "guzzlehttp/psr7": "^1.8.3 || ^2.1",
+        "psr/http-client": "^1.0",
+        "symfony/deprecation-contracts": "^2.2 || ^3.0"
+    },
+    "provide": {
+        "psr/http-client-implementation": "1.0"
+    },
+    "require-dev": {
+        "ext-curl": "*",
+        "bamarni/composer-bin-plugin": "^1.4.1",
+        "php-http/client-integration-tests": "^3.0",
+        "phpunit/phpunit": "^8.5.5 || ^9.3.5",
+        "psr/log": "^1.1 || ^2.0 || ^3.0"
+    },
+    "suggest": {
+        "ext-curl": "Required for CURL handler support",
+        "ext-intl": "Required for Internationalized Domain Name (IDN) support",
+        "psr/log": "Required for using the Log middleware"
+    },
+    "config": {
+        "preferred-install": "dist",
+        "sort-packages": true
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "7.4-dev"
+        }
+    },
+    "autoload": {
+        "psr-4": {
+            "GuzzleHttp\\": "src/"
+        },
+        "files": [
+            "src/functions_include.php"
+        ]
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "GuzzleHttp\\Tests\\": "tests/"
+        }
+    }
+}

vendor/guzzlehttp/guzzle/src/BodySummarizer.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace GuzzleHttp;
+
+use Psr\Http\Message\MessageInterface;
+
+final class BodySummarizer implements BodySummarizerInterface
+{
+    /**
+     * @var int|null
+     */
+    private $truncateAt;
+
+    public function __construct(int $truncateAt = null)
+    {
+        $this->truncateAt = $truncateAt;
+    }
+
+    /**
+     * Returns a summarized message body.
+     */
+    public function summarize(MessageInterface $message): ?string
+    {
+        return $this->truncateAt === null
+            ? \GuzzleHttp\Psr7\Message::bodySummary($message)
+            : \GuzzleHttp\Psr7\Message::bodySummary($message, $this->truncateAt);
+    }
+}

vendor/guzzlehttp/guzzle/src/BodySummarizerInterface.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace GuzzleHttp;
+
+use Psr\Http\Message\MessageInterface;
+
+interface BodySummarizerInterface
+{
+    /**
+     * Returns a summarized message body.
+     */
+    public function summarize(MessageInterface $message): ?string;
+}

vendor/guzzlehttp/guzzle/src/Client.php

@@ -0,0 +1,477 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Cookie\CookieJar;
+use GuzzleHttp\Exception\GuzzleException;
+use GuzzleHttp\Exception\InvalidArgumentException;
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * @final
+ */
+class Client implements ClientInterface, \Psr\Http\Client\ClientInterface
+{
+    use ClientTrait;
+
+    /**
+     * @var array Default request options
+     */
+    private $config;
+
+    /**
+     * Clients accept an array of constructor parameters.
+     *
+     * Here's an example of creating a client using a base_uri and an array of
+     * default request options to apply to each request:
+     *
+     *     $client = new Client([
+     *         'base_uri'        => 'http://www.foo.com/1.0/',
+     *         'timeout'         => 0,
+     *         'allow_redirects' => false,
+     *         'proxy'           => '192.168.16.1:10'
+     *     ]);
+     *
+     * Client configuration settings include the following options:
+     *
+     * - handler: (callable) Function that transfers HTTP requests over the
+     *   wire. The function is called with a Psr7\Http\Message\RequestInterface
+     *   and array of transfer options, and must return a
+     *   GuzzleHttp\Promise\PromiseInterface that is fulfilled with a
+     *   Psr7\Http\Message\ResponseInterface on success.
+     *   If no handler is provided, a default handler will be created
+     *   that enables all of the request options below by attaching all of the
+     *   default middleware to the handler.
+     * - base_uri: (string|UriInterface) Base URI of the client that is merged
+     *   into relative URIs. Can be a string or instance of UriInterface.
+     * - **: any request option
+     *
+     * @param array $config Client configuration settings.
+     *
+     * @see \GuzzleHttp\RequestOptions for a list of available request options.
+     */
+    public function __construct(array $config = [])
+    {
+        if (!isset($config['handler'])) {
+            $config['handler'] = HandlerStack::create();
+        } elseif (!\is_callable($config['handler'])) {
+            throw new InvalidArgumentException('handler must be a callable');
+        }
+
+        // Convert the base_uri to a UriInterface
+        if (isset($config['base_uri'])) {
+            $config['base_uri'] = Psr7\Utils::uriFor($config['base_uri']);
+        }
+
+        $this->configureDefaults($config);
+    }
+
+    /**
+     * @param string $method
+     * @param array  $args
+     *
+     * @return PromiseInterface|ResponseInterface
+     *
+     * @deprecated Client::__call will be removed in guzzlehttp/guzzle:8.0.
+     */
+    public function __call($method, $args)
+    {
+        if (\count($args) < 1) {
+            throw new InvalidArgumentException('Magic request methods require a URI and optional options array');
+        }
+
+        $uri = $args[0];
+        $opts = $args[1] ?? [];
+
+        return \substr($method, -5) === 'Async'
+            ? $this->requestAsync(\substr($method, 0, -5), $uri, $opts)
+            : $this->request($method, $uri, $opts);
+    }
+
+    /**
+     * Asynchronously send an HTTP request.
+     *
+     * @param array $options Request options to apply to the given
+     *                       request and to the transfer. See \GuzzleHttp\RequestOptions.
+     */
+    public function sendAsync(RequestInterface $request, array $options = []): PromiseInterface
+    {
+        // Merge the base URI into the request URI if needed.
+        $options = $this->prepareDefaults($options);
+
+        return $this->transfer(
+            $request->withUri($this->buildUri($request->getUri(), $options), $request->hasHeader('Host')),
+            $options
+        );
+    }
+
+    /**
+     * Send an HTTP request.
+     *
+     * @param array $options Request options to apply to the given
+     *                       request and to the transfer. See \GuzzleHttp\RequestOptions.
+     *
+     * @throws GuzzleException
+     */
+    public function send(RequestInterface $request, array $options = []): ResponseInterface
+    {
+        $options[RequestOptions::SYNCHRONOUS] = true;
+        return $this->sendAsync($request, $options)->wait();
+    }
+
+    /**
+     * The HttpClient PSR (PSR-18) specify this method.
+     *
+     * @inheritDoc
+     */
+    public function sendRequest(RequestInterface $request): ResponseInterface
+    {
+        $options[RequestOptions::SYNCHRONOUS] = true;
+        $options[RequestOptions::ALLOW_REDIRECTS] = false;
+        $options[RequestOptions::HTTP_ERRORS] = false;
+
+        return $this->sendAsync($request, $options)->wait();
+    }
+
+    /**
+     * Create and send an asynchronous HTTP request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string              $method  HTTP method
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply. See \GuzzleHttp\RequestOptions.
+     */
+    public function requestAsync(string $method, $uri = '', array $options = []): PromiseInterface
+    {
+        $options = $this->prepareDefaults($options);
+        // Remove request modifying parameter because it can be done up-front.
+        $headers = $options['headers'] ?? [];
+        $body = $options['body'] ?? null;
+        $version = $options['version'] ?? '1.1';
+        // Merge the URI into the base URI.
+        $uri = $this->buildUri(Psr7\Utils::uriFor($uri), $options);
+        if (\is_array($body)) {
+            throw $this->invalidBody();
+        }
+        $request = new Psr7\Request($method, $uri, $headers, $body, $version);
+        // Remove the option so that they are not doubly-applied.
+        unset($options['headers'], $options['body'], $options['version']);
+
+        return $this->transfer($request, $options);
+    }
+
+    /**
+     * Create and send an HTTP request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string              $method  HTTP method.
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply. See \GuzzleHttp\RequestOptions.
+     *
+     * @throws GuzzleException
+     */
+    public function request(string $method, $uri = '', array $options = []): ResponseInterface
+    {
+        $options[RequestOptions::SYNCHRONOUS] = true;
+        return $this->requestAsync($method, $uri, $options)->wait();
+    }
+
+    /**
+     * Get a client configuration option.
+     *
+     * These options include default request options of the client, a "handler"
+     * (if utilized by the concrete client), and a "base_uri" if utilized by
+     * the concrete client.
+     *
+     * @param string|null $option The config option to retrieve.
+     *
+     * @return mixed
+     *
+     * @deprecated Client::getConfig will be removed in guzzlehttp/guzzle:8.0.
+     */
+    public function getConfig(?string $option = null)
+    {
+        return $option === null
+            ? $this->config
+            : ($this->config[$option] ?? null);
+    }
+
+    private function buildUri(UriInterface $uri, array $config): UriInterface
+    {
+        if (isset($config['base_uri'])) {
+            $uri = Psr7\UriResolver::resolve(Psr7\Utils::uriFor($config['base_uri']), $uri);
+        }
+
+        if (isset($config['idn_conversion']) && ($config['idn_conversion'] !== false)) {
+            $idnOptions = ($config['idn_conversion'] === true) ? \IDNA_DEFAULT : $config['idn_conversion'];
+            $uri = Utils::idnUriConvert($uri, $idnOptions);
+        }
+
+        return $uri->getScheme() === '' && $uri->getHost() !== '' ? $uri->withScheme('http') : $uri;
+    }
+
+    /**
+     * Configures the default options for a client.
+     */
+    private function configureDefaults(array $config): void
+    {
+        $defaults = [
+            'allow_redirects' => RedirectMiddleware::$defaultSettings,
+            'http_errors'     => true,
+            'decode_content'  => true,
+            'verify'          => true,
+            'cookies'         => false,
+            'idn_conversion'  => false,
+        ];
+
+        // Use the standard Linux HTTP_PROXY and HTTPS_PROXY if set.
+
+        // We can only trust the HTTP_PROXY environment variable in a CLI
+        // process due to the fact that PHP has no reliable mechanism to
+        // get environment variables that start with "HTTP_".
+        if (\PHP_SAPI === 'cli' && ($proxy = Utils::getenv('HTTP_PROXY'))) {
+            $defaults['proxy']['http'] = $proxy;
+        }
+
+        if ($proxy = Utils::getenv('HTTPS_PROXY')) {
+            $defaults['proxy']['https'] = $proxy;
+        }
+
+        if ($noProxy = Utils::getenv('NO_PROXY')) {
+            $cleanedNoProxy = \str_replace(' ', '', $noProxy);
+            $defaults['proxy']['no'] = \explode(',', $cleanedNoProxy);
+        }
+
+        $this->config = $config + $defaults;
+
+        if (!empty($config['cookies']) && $config['cookies'] === true) {
+            $this->config['cookies'] = new CookieJar();
+        }
+
+        // Add the default user-agent header.
+        if (!isset($this->config['headers'])) {
+            $this->config['headers'] = ['User-Agent' => Utils::defaultUserAgent()];
+        } else {
+            // Add the User-Agent header if one was not already set.
+            foreach (\array_keys($this->config['headers']) as $name) {
+                if (\strtolower($name) === 'user-agent') {
+                    return;
+                }
+            }
+            $this->config['headers']['User-Agent'] = Utils::defaultUserAgent();
+        }
+    }
+
+    /**
+     * Merges default options into the array.
+     *
+     * @param array $options Options to modify by reference
+     */
+    private function prepareDefaults(array $options): array
+    {
+        $defaults = $this->config;
+
+        if (!empty($defaults['headers'])) {
+            // Default headers are only added if they are not present.
+            $defaults['_conditional'] = $defaults['headers'];
+            unset($defaults['headers']);
+        }
+
+        // Special handling for headers is required as they are added as
+        // conditional headers and as headers passed to a request ctor.
+        if (\array_key_exists('headers', $options)) {
+            // Allows default headers to be unset.
+            if ($options['headers'] === null) {
+                $defaults['_conditional'] = [];
+                unset($options['headers']);
+            } elseif (!\is_array($options['headers'])) {
+                throw new InvalidArgumentException('headers must be an array');
+            }
+        }
+
+        // Shallow merge defaults underneath options.
+        $result = $options + $defaults;
+
+        // Remove null values.
+        foreach ($result as $k => $v) {
+            if ($v === null) {
+                unset($result[$k]);
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * Transfers the given request and applies request options.
+     *
+     * The URI of the request is not modified and the request options are used
+     * as-is without merging in default options.
+     *
+     * @param array $options See \GuzzleHttp\RequestOptions.
+     */
+    private function transfer(RequestInterface $request, array $options): PromiseInterface
+    {
+        $request = $this->applyOptions($request, $options);
+        /** @var HandlerStack $handler */
+        $handler = $options['handler'];
+
+        try {
+            return P\Create::promiseFor($handler($request, $options));
+        } catch (\Exception $e) {
+            return P\Create::rejectionFor($e);
+        }
+    }
+
+    /**
+     * Applies the array of request options to a request.
+     */
+    private function applyOptions(RequestInterface $request, array &$options): RequestInterface
+    {
+        $modify = [
+            'set_headers' => [],
+        ];
+
+        if (isset($options['headers'])) {
+            if (array_keys($options['headers']) === range(0, count($options['headers']) - 1)) {
+                throw new InvalidArgumentException('The headers array must have header name as keys.');
+            }
+            $modify['set_headers'] = $options['headers'];
+            unset($options['headers']);
+        }
+
+        if (isset($options['form_params'])) {
+            if (isset($options['multipart'])) {
+                throw new InvalidArgumentException('You cannot use '
+                    . 'form_params and multipart at the same time. Use the '
+                    . 'form_params option if you want to send application/'
+                    . 'x-www-form-urlencoded requests, and the multipart '
+                    . 'option to send multipart/form-data requests.');
+            }
+            $options['body'] = \http_build_query($options['form_params'], '', '&');
+            unset($options['form_params']);
+            // Ensure that we don't have the header in different case and set the new value.
+            $options['_conditional'] = Psr7\Utils::caselessRemove(['Content-Type'], $options['_conditional']);
+            $options['_conditional']['Content-Type'] = 'application/x-www-form-urlencoded';
+        }
+
+        if (isset($options['multipart'])) {
+            $options['body'] = new Psr7\MultipartStream($options['multipart']);
+            unset($options['multipart']);
+        }
+
+        if (isset($options['json'])) {
+            $options['body'] = Utils::jsonEncode($options['json']);
+            unset($options['json']);
+            // Ensure that we don't have the header in different case and set the new value.
+            $options['_conditional'] = Psr7\Utils::caselessRemove(['Content-Type'], $options['_conditional']);
+            $options['_conditional']['Content-Type'] = 'application/json';
+        }
+
+        if (!empty($options['decode_content'])
+            && $options['decode_content'] !== true
+        ) {
+            // Ensure that we don't have the header in different case and set the new value.
+            $options['_conditional'] = Psr7\Utils::caselessRemove(['Accept-Encoding'], $options['_conditional']);
+            $modify['set_headers']['Accept-Encoding'] = $options['decode_content'];
+        }
+
+        if (isset($options['body'])) {
+            if (\is_array($options['body'])) {
+                throw $this->invalidBody();
+            }
+            $modify['body'] = Psr7\Utils::streamFor($options['body']);
+            unset($options['body']);
+        }
+
+        if (!empty($options['auth']) && \is_array($options['auth'])) {
+            $value = $options['auth'];
+            $type = isset($value[2]) ? \strtolower($value[2]) : 'basic';
+            switch ($type) {
+                case 'basic':
+                    // Ensure that we don't have the header in different case and set the new value.
+                    $modify['set_headers'] = Psr7\Utils::caselessRemove(['Authorization'], $modify['set_headers']);
+                    $modify['set_headers']['Authorization'] = 'Basic '
+                        . \base64_encode("$value[0]:$value[1]");
+                    break;
+                case 'digest':
+                    // @todo: Do not rely on curl
+                    $options['curl'][\CURLOPT_HTTPAUTH] = \CURLAUTH_DIGEST;
+                    $options['curl'][\CURLOPT_USERPWD] = "$value[0]:$value[1]";
+                    break;
+                case 'ntlm':
+                    $options['curl'][\CURLOPT_HTTPAUTH] = \CURLAUTH_NTLM;
+                    $options['curl'][\CURLOPT_USERPWD] = "$value[0]:$value[1]";
+                    break;
+            }
+        }
+
+        if (isset($options['query'])) {
+            $value = $options['query'];
+            if (\is_array($value)) {
+                $value = \http_build_query($value, '', '&', \PHP_QUERY_RFC3986);
+            }
+            if (!\is_string($value)) {
+                throw new InvalidArgumentException('query must be a string or array');
+            }
+            $modify['query'] = $value;
+            unset($options['query']);
+        }
+
+        // Ensure that sink is not an invalid value.
+        if (isset($options['sink'])) {
+            // TODO: Add more sink validation?
+            if (\is_bool($options['sink'])) {
+                throw new InvalidArgumentException('sink must not be a boolean');
+            }
+        }
+
+        $request = Psr7\Utils::modifyRequest($request, $modify);
+        if ($request->getBody() instanceof Psr7\MultipartStream) {
+            // Use a multipart/form-data POST if a Content-Type is not set.
+            // Ensure that we don't have the header in different case and set the new value.
+            $options['_conditional'] = Psr7\Utils::caselessRemove(['Content-Type'], $options['_conditional']);
+            $options['_conditional']['Content-Type'] = 'multipart/form-data; boundary='
+                . $request->getBody()->getBoundary();
+        }
+
+        // Merge in conditional headers if they are not present.
+        if (isset($options['_conditional'])) {
+            // Build up the changes so it's in a single clone of the message.
+            $modify = [];
+            foreach ($options['_conditional'] as $k => $v) {
+                if (!$request->hasHeader($k)) {
+                    $modify['set_headers'][$k] = $v;
+                }
+            }
+            $request = Psr7\Utils::modifyRequest($request, $modify);
+            // Don't pass this internal value along to middleware/handlers.
+            unset($options['_conditional']);
+        }
+
+        return $request;
+    }
+
+    /**
+     * Return an InvalidArgumentException with pre-set message.
+     */
+    private function invalidBody(): InvalidArgumentException
+    {
+        return new InvalidArgumentException('Passing in the "body" request '
+            . 'option as an array to send a request is not supported. '
+            . 'Please use the "form_params" request option to send a '
+            . 'application/x-www-form-urlencoded request, or the "multipart" '
+            . 'request option to send a multipart/form-data request.');
+    }
+}

vendor/guzzlehttp/guzzle/src/ClientInterface.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Exception\GuzzleException;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Client interface for sending HTTP requests.
+ */
+interface ClientInterface
+{
+    /**
+     * The Guzzle major version.
+     */
+    public const MAJOR_VERSION = 7;
+
+    /**
+     * Send an HTTP request.
+     *
+     * @param RequestInterface $request Request to send
+     * @param array            $options Request options to apply to the given
+     *                                  request and to the transfer.
+     *
+     * @throws GuzzleException
+     */
+    public function send(RequestInterface $request, array $options = []): ResponseInterface;
+
+    /**
+     * Asynchronously send an HTTP request.
+     *
+     * @param RequestInterface $request Request to send
+     * @param array            $options Request options to apply to the given
+     *                                  request and to the transfer.
+     */
+    public function sendAsync(RequestInterface $request, array $options = []): PromiseInterface;
+
+    /**
+     * Create and send an HTTP request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string              $method  HTTP method.
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     *
+     * @throws GuzzleException
+     */
+    public function request(string $method, $uri, array $options = []): ResponseInterface;
+
+    /**
+     * Create and send an asynchronous HTTP request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string              $method  HTTP method
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     */
+    public function requestAsync(string $method, $uri, array $options = []): PromiseInterface;
+
+    /**
+     * Get a client configuration option.
+     *
+     * These options include default request options of the client, a "handler"
+     * (if utilized by the concrete client), and a "base_uri" if utilized by
+     * the concrete client.
+     *
+     * @param string|null $option The config option to retrieve.
+     *
+     * @return mixed
+     *
+     * @deprecated ClientInterface::getConfig will be removed in guzzlehttp/guzzle:8.0.
+     */
+    public function getConfig(?string $option = null);
+}

vendor/guzzlehttp/guzzle/src/ClientTrait.php

@@ -0,0 +1,241 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Exception\GuzzleException;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Client interface for sending HTTP requests.
+ */
+trait ClientTrait
+{
+    /**
+     * Create and send an HTTP request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string              $method  HTTP method.
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     *
+     * @throws GuzzleException
+     */
+    abstract public function request(string $method, $uri, array $options = []): ResponseInterface;
+
+    /**
+     * Create and send an HTTP GET request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     *
+     * @throws GuzzleException
+     */
+    public function get($uri, array $options = []): ResponseInterface
+    {
+        return $this->request('GET', $uri, $options);
+    }
+
+    /**
+     * Create and send an HTTP HEAD request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     *
+     * @throws GuzzleException
+     */
+    public function head($uri, array $options = []): ResponseInterface
+    {
+        return $this->request('HEAD', $uri, $options);
+    }
+
+    /**
+     * Create and send an HTTP PUT request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     *
+     * @throws GuzzleException
+     */
+    public function put($uri, array $options = []): ResponseInterface
+    {
+        return $this->request('PUT', $uri, $options);
+    }
+
+    /**
+     * Create and send an HTTP POST request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     *
+     * @throws GuzzleException
+     */
+    public function post($uri, array $options = []): ResponseInterface
+    {
+        return $this->request('POST', $uri, $options);
+    }
+
+    /**
+     * Create and send an HTTP PATCH request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     *
+     * @throws GuzzleException
+     */
+    public function patch($uri, array $options = []): ResponseInterface
+    {
+        return $this->request('PATCH', $uri, $options);
+    }
+
+    /**
+     * Create and send an HTTP DELETE request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     *
+     * @throws GuzzleException
+     */
+    public function delete($uri, array $options = []): ResponseInterface
+    {
+        return $this->request('DELETE', $uri, $options);
+    }
+
+    /**
+     * Create and send an asynchronous HTTP request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string              $method  HTTP method
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     */
+    abstract public function requestAsync(string $method, $uri, array $options = []): PromiseInterface;
+
+    /**
+     * Create and send an asynchronous HTTP GET request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     */
+    public function getAsync($uri, array $options = []): PromiseInterface
+    {
+        return $this->requestAsync('GET', $uri, $options);
+    }
+
+    /**
+     * Create and send an asynchronous HTTP HEAD request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     */
+    public function headAsync($uri, array $options = []): PromiseInterface
+    {
+        return $this->requestAsync('HEAD', $uri, $options);
+    }
+
+    /**
+     * Create and send an asynchronous HTTP PUT request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     */
+    public function putAsync($uri, array $options = []): PromiseInterface
+    {
+        return $this->requestAsync('PUT', $uri, $options);
+    }
+
+    /**
+     * Create and send an asynchronous HTTP POST request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     */
+    public function postAsync($uri, array $options = []): PromiseInterface
+    {
+        return $this->requestAsync('POST', $uri, $options);
+    }
+
+    /**
+     * Create and send an asynchronous HTTP PATCH request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     */
+    public function patchAsync($uri, array $options = []): PromiseInterface
+    {
+        return $this->requestAsync('PATCH', $uri, $options);
+    }
+
+    /**
+     * Create and send an asynchronous HTTP DELETE request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     */
+    public function deleteAsync($uri, array $options = []): PromiseInterface
+    {
+        return $this->requestAsync('DELETE', $uri, $options);
+    }
+}

vendor/guzzlehttp/guzzle/src/Cookie/CookieJar.php

@@ -0,0 +1,313 @@
+<?php
+
+namespace GuzzleHttp\Cookie;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Cookie jar that stores cookies as an array
+ */
+class CookieJar implements CookieJarInterface
+{
+    /**
+     * @var SetCookie[] Loaded cookie data
+     */
+    private $cookies = [];
+
+    /**
+     * @var bool
+     */
+    private $strictMode;
+
+    /**
+     * @param bool  $strictMode  Set to true to throw exceptions when invalid
+     *                           cookies are added to the cookie jar.
+     * @param array $cookieArray Array of SetCookie objects or a hash of
+     *                           arrays that can be used with the SetCookie
+     *                           constructor
+     */
+    public function __construct(bool $strictMode = false, array $cookieArray = [])
+    {
+        $this->strictMode = $strictMode;
+
+        foreach ($cookieArray as $cookie) {
+            if (!($cookie instanceof SetCookie)) {
+                $cookie = new SetCookie($cookie);
+            }
+            $this->setCookie($cookie);
+        }
+    }
+
+    /**
+     * Create a new Cookie jar from an associative array and domain.
+     *
+     * @param array  $cookies Cookies to create the jar from
+     * @param string $domain  Domain to set the cookies to
+     */
+    public static function fromArray(array $cookies, string $domain): self
+    {
+        $cookieJar = new self();
+        foreach ($cookies as $name => $value) {
+            $cookieJar->setCookie(new SetCookie([
+                'Domain'  => $domain,
+                'Name'    => $name,
+                'Value'   => $value,
+                'Discard' => true
+            ]));
+        }
+
+        return $cookieJar;
+    }
+
+    /**
+     * Evaluate if this cookie should be persisted to storage
+     * that survives between requests.
+     *
+     * @param SetCookie $cookie              Being evaluated.
+     * @param bool      $allowSessionCookies If we should persist session cookies
+     */
+    public static function shouldPersist(SetCookie $cookie, bool $allowSessionCookies = false): bool
+    {
+        if ($cookie->getExpires() || $allowSessionCookies) {
+            if (!$cookie->getDiscard()) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Finds and returns the cookie based on the name
+     *
+     * @param string $name cookie name to search for
+     *
+     * @return SetCookie|null cookie that was found or null if not found
+     */
+    public function getCookieByName(string $name): ?SetCookie
+    {
+        foreach ($this->cookies as $cookie) {
+            if ($cookie->getName() !== null && \strcasecmp($cookie->getName(), $name) === 0) {
+                return $cookie;
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function toArray(): array
+    {
+        return \array_map(static function (SetCookie $cookie): array {
+            return $cookie->toArray();
+        }, $this->getIterator()->getArrayCopy());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function clear(?string $domain = null, ?string $path = null, ?string $name = null): void
+    {
+        if (!$domain) {
+            $this->cookies = [];
+            return;
+        } elseif (!$path) {
+            $this->cookies = \array_filter(
+                $this->cookies,
+                static function (SetCookie $cookie) use ($domain): bool {
+                    return !$cookie->matchesDomain($domain);
+                }
+            );
+        } elseif (!$name) {
+            $this->cookies = \array_filter(
+                $this->cookies,
+                static function (SetCookie $cookie) use ($path, $domain): bool {
+                    return !($cookie->matchesPath($path) &&
+                        $cookie->matchesDomain($domain));
+                }
+            );
+        } else {
+            $this->cookies = \array_filter(
+                $this->cookies,
+                static function (SetCookie $cookie) use ($path, $domain, $name) {
+                    return !($cookie->getName() == $name &&
+                        $cookie->matchesPath($path) &&
+                        $cookie->matchesDomain($domain));
+                }
+            );
+        }
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function clearSessionCookies(): void
+    {
+        $this->cookies = \array_filter(
+            $this->cookies,
+            static function (SetCookie $cookie): bool {
+                return !$cookie->getDiscard() && $cookie->getExpires();
+            }
+        );
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function setCookie(SetCookie $cookie): bool
+    {
+        // If the name string is empty (but not 0), ignore the set-cookie
+        // string entirely.
+        $name = $cookie->getName();
+        if (!$name && $name !== '0') {
+            return false;
+        }
+
+        // Only allow cookies with set and valid domain, name, value
+        $result = $cookie->validate();
+        if ($result !== true) {
+            if ($this->strictMode) {
+                throw new \RuntimeException('Invalid cookie: ' . $result);
+            }
+            $this->removeCookieIfEmpty($cookie);
+            return false;
+        }
+
+        // Resolve conflicts with previously set cookies
+        foreach ($this->cookies as $i => $c) {
+
+            // Two cookies are identical, when their path, and domain are
+            // identical.
+            if ($c->getPath() != $cookie->getPath() ||
+                $c->getDomain() != $cookie->getDomain() ||
+                $c->getName() != $cookie->getName()
+            ) {
+                continue;
+            }
+
+            // The previously set cookie is a discard cookie and this one is
+            // not so allow the new cookie to be set
+            if (!$cookie->getDiscard() && $c->getDiscard()) {
+                unset($this->cookies[$i]);
+                continue;
+            }
+
+            // If the new cookie's expiration is further into the future, then
+            // replace the old cookie
+            if ($cookie->getExpires() > $c->getExpires()) {
+                unset($this->cookies[$i]);
+                continue;
+            }
+
+            // If the value has changed, we better change it
+            if ($cookie->getValue() !== $c->getValue()) {
+                unset($this->cookies[$i]);
+                continue;
+            }
+
+            // The cookie exists, so no need to continue
+            return false;
+        }
+
+        $this->cookies[] = $cookie;
+
+        return true;
+    }
+
+    public function count(): int
+    {
+        return \count($this->cookies);
+    }
+
+    /**
+     * @return \ArrayIterator<int, SetCookie>
+     */
+    public function getIterator(): \ArrayIterator
+    {
+        return new \ArrayIterator(\array_values($this->cookies));
+    }
+
+    public function extractCookies(RequestInterface $request, ResponseInterface $response): void
+    {
+        if ($cookieHeader = $response->getHeader('Set-Cookie')) {
+            foreach ($cookieHeader as $cookie) {
+                $sc = SetCookie::fromString($cookie);
+                if (!$sc->getDomain()) {
+                    $sc->setDomain($request->getUri()->getHost());
+                }
+                if (0 !== \strpos($sc->getPath(), '/')) {
+                    $sc->setPath($this->getCookiePathFromRequest($request));
+                }
+                $this->setCookie($sc);
+            }
+        }
+    }
+
+    /**
+     * Computes cookie path following RFC 6265 section 5.1.4
+     *
+     * @link https://tools.ietf.org/html/rfc6265#section-5.1.4
+     */
+    private function getCookiePathFromRequest(RequestInterface $request): string
+    {
+        $uriPath = $request->getUri()->getPath();
+        if ('' === $uriPath) {
+            return '/';
+        }
+        if (0 !== \strpos($uriPath, '/')) {
+            return '/';
+        }
+        if ('/' === $uriPath) {
+            return '/';
+        }
+        $lastSlashPos = \strrpos($uriPath, '/');
+        if (0 === $lastSlashPos || false === $lastSlashPos) {
+            return '/';
+        }
+
+        return \substr($uriPath, 0, $lastSlashPos);
+    }
+
+    public function withCookieHeader(RequestInterface $request): RequestInterface
+    {
+        $values = [];
+        $uri = $request->getUri();
+        $scheme = $uri->getScheme();
+        $host = $uri->getHost();
+        $path = $uri->getPath() ?: '/';
+
+        foreach ($this->cookies as $cookie) {
+            if ($cookie->matchesPath($path) &&
+                $cookie->matchesDomain($host) &&
+                !$cookie->isExpired() &&
+                (!$cookie->getSecure() || $scheme === 'https')
+            ) {
+                $values[] = $cookie->getName() . '='
+                    . $cookie->getValue();
+            }
+        }
+
+        return $values
+            ? $request->withHeader('Cookie', \implode('; ', $values))
+            : $request;
+    }
+
+    /**
+     * If a cookie already exists and the server asks to set it again with a
+     * null value, the cookie must be deleted.
+     */
+    private function removeCookieIfEmpty(SetCookie $cookie): void
+    {
+        $cookieValue = $cookie->getValue();
+        if ($cookieValue === null || $cookieValue === '') {
+            $this->clear(
+                $cookie->getDomain(),
+                $cookie->getPath(),
+                $cookie->getName()
+            );
+        }
+    }
+}

vendor/guzzlehttp/guzzle/src/Cookie/CookieJarInterface.php

@@ -0,0 +1,79 @@
+<?php
+
+namespace GuzzleHttp\Cookie;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Stores HTTP cookies.
+ *
+ * It extracts cookies from HTTP requests, and returns them in HTTP responses.
+ * CookieJarInterface instances automatically expire contained cookies when
+ * necessary. Subclasses are also responsible for storing and retrieving
+ * cookies from a file, database, etc.
+ *
+ * @link https://docs.python.org/2/library/cookielib.html Inspiration
+ * @extends \IteratorAggregate<SetCookie>
+ */
+interface CookieJarInterface extends \Countable, \IteratorAggregate
+{
+    /**
+     * Create a request with added cookie headers.
+     *
+     * If no matching cookies are found in the cookie jar, then no Cookie
+     * header is added to the request and the same request is returned.
+     *
+     * @param RequestInterface $request Request object to modify.
+     *
+     * @return RequestInterface returns the modified request.
+     */
+    public function withCookieHeader(RequestInterface $request): RequestInterface;
+
+    /**
+     * Extract cookies from an HTTP response and store them in the CookieJar.
+     *
+     * @param RequestInterface  $request  Request that was sent
+     * @param ResponseInterface $response Response that was received
+     */
+    public function extractCookies(RequestInterface $request, ResponseInterface $response): void;
+
+    /**
+     * Sets a cookie in the cookie jar.
+     *
+     * @param SetCookie $cookie Cookie to set.
+     *
+     * @return bool Returns true on success or false on failure
+     */
+    public function setCookie(SetCookie $cookie): bool;
+
+    /**
+     * Remove cookies currently held in the cookie jar.
+     *
+     * Invoking this method without arguments will empty the whole cookie jar.
+     * If given a $domain argument only cookies belonging to that domain will
+     * be removed. If given a $domain and $path argument, cookies belonging to
+     * the specified path within that domain are removed. If given all three
+     * arguments, then the cookie with the specified name, path and domain is
+     * removed.
+     *
+     * @param string|null $domain Clears cookies matching a domain
+     * @param string|null $path   Clears cookies matching a domain and path
+     * @param string|null $name   Clears cookies matching a domain, path, and name
+     */
+    public function clear(?string $domain = null, ?string $path = null, ?string $name = null): void;
+
+    /**
+     * Discard all sessions cookies.
+     *
+     * Removes cookies that don't have an expire field or a have a discard
+     * field set to true. To be called when the user agent shuts down according
+     * to RFC 2965.
+     */
+    public function clearSessionCookies(): void;
+
+    /**
+     * Converts the cookie jar to an array.
+     */
+    public function toArray(): array;
+}

vendor/guzzlehttp/guzzle/src/Cookie/FileCookieJar.php

@@ -0,0 +1,101 @@
+<?php
+
+namespace GuzzleHttp\Cookie;
+
+use GuzzleHttp\Utils;
+
+/**
+ * Persists non-session cookies using a JSON formatted file
+ */
+class FileCookieJar extends CookieJar
+{
+    /**
+     * @var string filename
+     */
+    private $filename;
+
+    /**
+     * @var bool Control whether to persist session cookies or not.
+     */
+    private $storeSessionCookies;
+
+    /**
+     * Create a new FileCookieJar object
+     *
+     * @param string $cookieFile          File to store the cookie data
+     * @param bool   $storeSessionCookies Set to true to store session cookies
+     *                                    in the cookie jar.
+     *
+     * @throws \RuntimeException if the file cannot be found or created
+     */
+    public function __construct(string $cookieFile, bool $storeSessionCookies = false)
+    {
+        parent::__construct();
+        $this->filename = $cookieFile;
+        $this->storeSessionCookies = $storeSessionCookies;
+
+        if (\file_exists($cookieFile)) {
+            $this->load($cookieFile);
+        }
+    }
+
+    /**
+     * Saves the file when shutting down
+     */
+    public function __destruct()
+    {
+        $this->save($this->filename);
+    }
+
+    /**
+     * Saves the cookies to a file.
+     *
+     * @param string $filename File to save
+     *
+     * @throws \RuntimeException if the file cannot be found or created
+     */
+    public function save(string $filename): void
+    {
+        $json = [];
+        /** @var SetCookie $cookie */
+        foreach ($this as $cookie) {
+            if (CookieJar::shouldPersist($cookie, $this->storeSessionCookies)) {
+                $json[] = $cookie->toArray();
+            }
+        }
+
+        $jsonStr = Utils::jsonEncode($json);
+        if (false === \file_put_contents($filename, $jsonStr, \LOCK_EX)) {
+            throw new \RuntimeException("Unable to save file {$filename}");
+        }
+    }
+
+    /**
+     * Load cookies from a JSON formatted file.
+     *
+     * Old cookies are kept unless overwritten by newly loaded ones.
+     *
+     * @param string $filename Cookie file to load.
+     *
+     * @throws \RuntimeException if the file cannot be loaded.
+     */
+    public function load(string $filename): void
+    {
+        $json = \file_get_contents($filename);
+        if (false === $json) {
+            throw new \RuntimeException("Unable to load file {$filename}");
+        }
+        if ($json === '') {
+            return;
+        }
+
+        $data = Utils::jsonDecode($json, true);
+        if (\is_array($data)) {
+            foreach ($data as $cookie) {
+                $this->setCookie(new SetCookie($cookie));
+            }
+        } elseif (\is_scalar($data) && !empty($data)) {
+            throw new \RuntimeException("Invalid cookie file: {$filename}");
+        }
+    }
+}

vendor/guzzlehttp/guzzle/src/Cookie/SessionCookieJar.php

@@ -0,0 +1,77 @@
+<?php
+
+namespace GuzzleHttp\Cookie;
+
+/**
+ * Persists cookies in the client session
+ */
+class SessionCookieJar extends CookieJar
+{
+    /**
+     * @var string session key
+     */
+    private $sessionKey;
+
+    /**
+     * @var bool Control whether to persist session cookies or not.
+     */
+    private $storeSessionCookies;
+
+    /**
+     * Create a new SessionCookieJar object
+     *
+     * @param string $sessionKey          Session key name to store the cookie
+     *                                    data in session
+     * @param bool   $storeSessionCookies Set to true to store session cookies
+     *                                    in the cookie jar.
+     */
+    public function __construct(string $sessionKey, bool $storeSessionCookies = false)
+    {
+        parent::__construct();
+        $this->sessionKey = $sessionKey;
+        $this->storeSessionCookies = $storeSessionCookies;
+        $this->load();
+    }
+
+    /**
+     * Saves cookies to session when shutting down
+     */
+    public function __destruct()
+    {
+        $this->save();
+    }
+
+    /**
+     * Save cookies to the client session
+     */
+    public function save(): void
+    {
+        $json = [];
+        /** @var SetCookie $cookie */
+        foreach ($this as $cookie) {
+            if (CookieJar::shouldPersist($cookie, $this->storeSessionCookies)) {
+                $json[] = $cookie->toArray();
+            }
+        }
+
+        $_SESSION[$this->sessionKey] = \json_encode($json);
+    }
+
+    /**
+     * Load the contents of the client session into the data array
+     */
+    protected function load(): void
+    {
+        if (!isset($_SESSION[$this->sessionKey])) {
+            return;
+        }
+        $data = \json_decode($_SESSION[$this->sessionKey], true);
+        if (\is_array($data)) {
+            foreach ($data as $cookie) {
+                $this->setCookie(new SetCookie($cookie));
+            }
+        } elseif (\strlen($data)) {
+            throw new \RuntimeException("Invalid cookie data");
+        }
+    }
+}

vendor/guzzlehttp/guzzle/src/Cookie/SetCookie.php

@@ -0,0 +1,444 @@
+<?php
+
+namespace GuzzleHttp\Cookie;
+
+/**
+ * Set-Cookie object
+ */
+class SetCookie
+{
+    /**
+     * @var array
+     */
+    private static $defaults = [
+        'Name'     => null,
+        'Value'    => null,
+        'Domain'   => null,
+        'Path'     => '/',
+        'Max-Age'  => null,
+        'Expires'  => null,
+        'Secure'   => false,
+        'Discard'  => false,
+        'HttpOnly' => false
+    ];
+
+    /**
+     * @var array Cookie data
+     */
+    private $data;
+
+    /**
+     * Create a new SetCookie object from a string.
+     *
+     * @param string $cookie Set-Cookie header string
+     */
+    public static function fromString(string $cookie): self
+    {
+        // Create the default return array
+        $data = self::$defaults;
+        // Explode the cookie string using a series of semicolons
+        $pieces = \array_filter(\array_map('trim', \explode(';', $cookie)));
+        // The name of the cookie (first kvp) must exist and include an equal sign.
+        if (!isset($pieces[0]) || \strpos($pieces[0], '=') === false) {
+            return new self($data);
+        }
+
+        // Add the cookie pieces into the parsed data array
+        foreach ($pieces as $part) {
+            $cookieParts = \explode('=', $part, 2);
+            $key = \trim($cookieParts[0]);
+            $value = isset($cookieParts[1])
+                ? \trim($cookieParts[1], " \n\r\t\0\x0B")
+                : true;
+
+            // Only check for non-cookies when cookies have been found
+            if (!isset($data['Name'])) {
+                $data['Name'] = $key;
+                $data['Value'] = $value;
+            } else {
+                foreach (\array_keys(self::$defaults) as $search) {
+                    if (!\strcasecmp($search, $key)) {
+                        $data[$search] = $value;
+                        continue 2;
+                    }
+                }
+                $data[$key] = $value;
+            }
+        }
+
+        return new self($data);
+    }
+
+    /**
+     * @param array $data Array of cookie data provided by a Cookie parser
+     */
+    public function __construct(array $data = [])
+    {
+        /** @var array|null $replaced will be null in case of replace error */
+        $replaced = \array_replace(self::$defaults, $data);
+        if ($replaced === null) {
+            throw new \InvalidArgumentException('Unable to replace the default values for the Cookie.');
+        }
+
+        $this->data = $replaced;
+        // Extract the Expires value and turn it into a UNIX timestamp if needed
+        if (!$this->getExpires() && $this->getMaxAge()) {
+            // Calculate the Expires date
+            $this->setExpires(\time() + $this->getMaxAge());
+        } elseif (null !== ($expires = $this->getExpires()) && !\is_numeric($expires)) {
+            $this->setExpires($expires);
+        }
+    }
+
+    public function __toString()
+    {
+        $str = $this->data['Name'] . '=' . ($this->data['Value'] ?? '') . '; ';
+        foreach ($this->data as $k => $v) {
+            if ($k !== 'Name' && $k !== 'Value' && $v !== null && $v !== false) {
+                if ($k === 'Expires') {
+                    $str .= 'Expires=' . \gmdate('D, d M Y H:i:s \G\M\T', $v) . '; ';
+                } else {
+                    $str .= ($v === true ? $k : "{$k}={$v}") . '; ';
+                }
+            }
+        }
+
+        return \rtrim($str, '; ');
+    }
+
+    public function toArray(): array
+    {
+        return $this->data;
+    }
+
+    /**
+     * Get the cookie name.
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->data['Name'];
+    }
+
+    /**
+     * Set the cookie name.
+     *
+     * @param string $name Cookie name
+     */
+    public function setName($name): void
+    {
+        if (!is_string($name)) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing a string to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        $this->data['Name'] = (string) $name;
+    }
+
+    /**
+     * Get the cookie value.
+     *
+     * @return string|null
+     */
+    public function getValue()
+    {
+        return $this->data['Value'];
+    }
+
+    /**
+     * Set the cookie value.
+     *
+     * @param string $value Cookie value
+     */
+    public function setValue($value): void
+    {
+        if (!is_string($value)) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing a string to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        $this->data['Value'] = (string) $value;
+    }
+
+    /**
+     * Get the domain.
+     *
+     * @return string|null
+     */
+    public function getDomain()
+    {
+        return $this->data['Domain'];
+    }
+
+    /**
+     * Set the domain of the cookie.
+     *
+     * @param string|null $domain
+     */
+    public function setDomain($domain): void
+    {
+        if (!is_string($domain) && null !== $domain) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing a string or null to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        $this->data['Domain'] = null === $domain ? null : (string) $domain;
+    }
+
+    /**
+     * Get the path.
+     *
+     * @return string
+     */
+    public function getPath()
+    {
+        return $this->data['Path'];
+    }
+
+    /**
+     * Set the path of the cookie.
+     *
+     * @param string $path Path of the cookie
+     */
+    public function setPath($path): void
+    {
+        if (!is_string($path)) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing a string to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        $this->data['Path'] = (string) $path;
+    }
+
+    /**
+     * Maximum lifetime of the cookie in seconds.
+     *
+     * @return int|null
+     */
+    public function getMaxAge()
+    {
+        return null === $this->data['Max-Age'] ? null : (int) $this->data['Max-Age'];
+    }
+
+    /**
+     * Set the max-age of the cookie.
+     *
+     * @param int|null $maxAge Max age of the cookie in seconds
+     */
+    public function setMaxAge($maxAge): void
+    {
+        if (!is_int($maxAge) && null !== $maxAge) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing an int or null to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        $this->data['Max-Age'] = $maxAge === null ? null : (int) $maxAge;
+    }
+
+    /**
+     * The UNIX timestamp when the cookie Expires.
+     *
+     * @return string|int|null
+     */
+    public function getExpires()
+    {
+        return $this->data['Expires'];
+    }
+
+    /**
+     * Set the unix timestamp for which the cookie will expire.
+     *
+     * @param int|string|null $timestamp Unix timestamp or any English textual datetime description.
+     */
+    public function setExpires($timestamp): void
+    {
+        if (!is_int($timestamp) && !is_string($timestamp) && null !== $timestamp) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing an int, string or null to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        $this->data['Expires'] = null === $timestamp ? null : (\is_numeric($timestamp) ? (int) $timestamp : \strtotime((string) $timestamp));
+    }
+
+    /**
+     * Get whether or not this is a secure cookie.
+     *
+     * @return bool
+     */
+    public function getSecure()
+    {
+        return $this->data['Secure'];
+    }
+
+    /**
+     * Set whether or not the cookie is secure.
+     *
+     * @param bool $secure Set to true or false if secure
+     */
+    public function setSecure($secure): void
+    {
+        if (!is_bool($secure)) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing a bool to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        $this->data['Secure'] = (bool) $secure;
+    }
+
+    /**
+     * Get whether or not this is a session cookie.
+     *
+     * @return bool|null
+     */
+    public function getDiscard()
+    {
+        return $this->data['Discard'];
+    }
+
+    /**
+     * Set whether or not this is a session cookie.
+     *
+     * @param bool $discard Set to true or false if this is a session cookie
+     */
+    public function setDiscard($discard): void
+    {
+        if (!is_bool($discard)) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing a bool to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        $this->data['Discard'] = (bool) $discard;
+    }
+
+    /**
+     * Get whether or not this is an HTTP only cookie.
+     *
+     * @return bool
+     */
+    public function getHttpOnly()
+    {
+        return $this->data['HttpOnly'];
+    }
+
+    /**
+     * Set whether or not this is an HTTP only cookie.
+     *
+     * @param bool $httpOnly Set to true or false if this is HTTP only
+     */
+    public function setHttpOnly($httpOnly): void
+    {
+        if (!is_bool($httpOnly)) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing a bool to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        $this->data['HttpOnly'] = (bool) $httpOnly;
+    }
+
+    /**
+     * Check if the cookie matches a path value.
+     *
+     * A request-path path-matches a given cookie-path if at least one of
+     * the following conditions holds:
+     *
+     * - The cookie-path and the request-path are identical.
+     * - The cookie-path is a prefix of the request-path, and the last
+     *   character of the cookie-path is %x2F ("/").
+     * - The cookie-path is a prefix of the request-path, and the first
+     *   character of the request-path that is not included in the cookie-
+     *   path is a %x2F ("/") character.
+     *
+     * @param string $requestPath Path to check against
+     */
+    public function matchesPath(string $requestPath): bool
+    {
+        $cookiePath = $this->getPath();
+
+        // Match on exact matches or when path is the default empty "/"
+        if ($cookiePath === '/' || $cookiePath == $requestPath) {
+            return true;
+        }
+
+        // Ensure that the cookie-path is a prefix of the request path.
+        if (0 !== \strpos($requestPath, $cookiePath)) {
+            return false;
+        }
+
+        // Match if the last character of the cookie-path is "/"
+        if (\substr($cookiePath, -1, 1) === '/') {
+            return true;
+        }
+
+        // Match if the first character not included in cookie path is "/"
+        return \substr($requestPath, \strlen($cookiePath), 1) === '/';
+    }
+
+    /**
+     * Check if the cookie matches a domain value.
+     *
+     * @param string $domain Domain to check against
+     */
+    public function matchesDomain(string $domain): bool
+    {
+        $cookieDomain = $this->getDomain();
+        if (null === $cookieDomain) {
+            return true;
+        }
+
+        // Remove the leading '.' as per spec in RFC 6265.
+        // https://tools.ietf.org/html/rfc6265#section-5.2.3
+        $cookieDomain = \ltrim($cookieDomain, '.');
+
+        // Domain not set or exact match.
+        if (!$cookieDomain || !\strcasecmp($domain, $cookieDomain)) {
+            return true;
+        }
+
+        // Matching the subdomain according to RFC 6265.
+        // https://tools.ietf.org/html/rfc6265#section-5.1.3
+        if (\filter_var($domain, \FILTER_VALIDATE_IP)) {
+            return false;
+        }
+
+        return (bool) \preg_match('/\.' . \preg_quote($cookieDomain, '/') . '$/', $domain);
+    }
+
+    /**
+     * Check if the cookie is expired.
+     */
+    public function isExpired(): bool
+    {
+        return $this->getExpires() !== null && \time() > $this->getExpires();
+    }
+
+    /**
+     * Check if the cookie is valid according to RFC 6265.
+     *
+     * @return bool|string Returns true if valid or an error message if invalid
+     */
+    public function validate()
+    {
+        $name = $this->getName();
+        if ($name === '') {
+            return 'The cookie name must not be empty';
+        }
+
+        // Check if any of the invalid characters are present in the cookie name
+        if (\preg_match(
+            '/[\x00-\x20\x22\x28-\x29\x2c\x2f\x3a-\x40\x5c\x7b\x7d\x7f]/',
+            $name
+        )) {
+            return 'Cookie name must not contain invalid characters: ASCII '
+                . 'Control characters (0-31;127), space, tab and the '
+                . 'following characters: ()<>@,;:\"/?={}';
+        }
+
+        // Value must not be null. 0 and empty string are valid. Empty strings
+        // are technically against RFC 6265, but known to happen in the wild.
+        $value = $this->getValue();
+        if ($value === null) {
+            return 'The cookie value must not be empty';
+        }
+
+        // Domains must not be empty, but can be 0. "0" is not a valid internet
+        // domain, but may be used as server name in a private network.
+        $domain = $this->getDomain();
+        if ($domain === null || $domain === '') {
+            return 'The cookie domain must not be empty';
+        }
+
+        return true;
+    }
+}

vendor/guzzlehttp/guzzle/src/Exception/BadResponseException.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace GuzzleHttp\Exception;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Exception when an HTTP error occurs (4xx or 5xx error)
+ */
+class BadResponseException extends RequestException
+{
+    public function __construct(
+        string $message,
+        RequestInterface $request,
+        ResponseInterface $response,
+        \Throwable $previous = null,
+        array $handlerContext = []
+    ) {
+        parent::__construct($message, $request, $response, $previous, $handlerContext);
+    }
+
+    /**
+     * Current exception and the ones that extend it will always have a response.
+     */
+    public function hasResponse(): bool
+    {
+        return true;
+    }
+
+    /**
+     * This function narrows the return type from the parent class and does not allow it to be nullable.
+     */
+    public function getResponse(): ResponseInterface
+    {
+        /** @var ResponseInterface */
+        return parent::getResponse();
+    }
+}

vendor/guzzlehttp/guzzle/src/Exception/ClientException.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace GuzzleHttp\Exception;
+
+/**
+ * Exception when a client error is encountered (4xx codes)
+ */
+class ClientException extends BadResponseException
+{
+}

vendor/guzzlehttp/guzzle/src/Exception/ConnectException.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace GuzzleHttp\Exception;
+
+use Psr\Http\Client\NetworkExceptionInterface;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Exception thrown when a connection cannot be established.
+ *
+ * Note that no response is present for a ConnectException
+ */
+class ConnectException extends TransferException implements NetworkExceptionInterface
+{
+    /**
+     * @var RequestInterface
+     */
+    private $request;
+
+    /**
+     * @var array
+     */
+    private $handlerContext;
+
+    public function __construct(
+        string $message,
+        RequestInterface $request,
+        \Throwable $previous = null,
+        array $handlerContext = []
+    ) {
+        parent::__construct($message, 0, $previous);
+        $this->request = $request;
+        $this->handlerContext = $handlerContext;
+    }
+
+    /**
+     * Get the request that caused the exception
+     */
+    public function getRequest(): RequestInterface
+    {
+        return $this->request;
+    }
+
+    /**
+     * Get contextual information about the error from the underlying handler.
+     *
+     * The contents of this array will vary depending on which handler you are
+     * using. It may also be just an empty array. Relying on this data will
+     * couple you to a specific handler, but can give more debug information
+     * when needed.
+     */
+    public function getHandlerContext(): array
+    {
+        return $this->handlerContext;
+    }
+}

vendor/guzzlehttp/guzzle/src/Exception/GuzzleException.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace GuzzleHttp\Exception;
+
+use Psr\Http\Client\ClientExceptionInterface;
+
+interface GuzzleException extends ClientExceptionInterface
+{
+}

vendor/guzzlehttp/guzzle/src/Exception/InvalidArgumentException.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace GuzzleHttp\Exception;
+
+final class InvalidArgumentException extends \InvalidArgumentException implements GuzzleException
+{
+}

vendor/guzzlehttp/guzzle/src/Exception/RequestException.php

@@ -0,0 +1,166 @@
+<?php
+
+namespace GuzzleHttp\Exception;
+
+use GuzzleHttp\BodySummarizer;
+use GuzzleHttp\BodySummarizerInterface;
+use Psr\Http\Client\RequestExceptionInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * HTTP Request exception
+ */
+class RequestException extends TransferException implements RequestExceptionInterface
+{
+    /**
+     * @var RequestInterface
+     */
+    private $request;
+
+    /**
+     * @var ResponseInterface|null
+     */
+    private $response;
+
+    /**
+     * @var array
+     */
+    private $handlerContext;
+
+    public function __construct(
+        string $message,
+        RequestInterface $request,
+        ResponseInterface $response = null,
+        \Throwable $previous = null,
+        array $handlerContext = []
+    ) {
+        // Set the code of the exception if the response is set and not future.
+        $code = $response ? $response->getStatusCode() : 0;
+        parent::__construct($message, $code, $previous);
+        $this->request = $request;
+        $this->response = $response;
+        $this->handlerContext = $handlerContext;
+    }
+
+    /**
+     * Wrap non-RequestExceptions with a RequestException
+     */
+    public static function wrapException(RequestInterface $request, \Throwable $e): RequestException
+    {
+        return $e instanceof RequestException ? $e : new RequestException($e->getMessage(), $request, null, $e);
+    }
+
+    /**
+     * Factory method to create a new exception with a normalized error message
+     *
+     * @param RequestInterface             $request        Request sent
+     * @param ResponseInterface            $response       Response received
+     * @param \Throwable|null              $previous       Previous exception
+     * @param array                        $handlerContext Optional handler context
+     * @param BodySummarizerInterface|null $bodySummarizer Optional body summarizer
+     */
+    public static function create(
+        RequestInterface $request,
+        ResponseInterface $response = null,
+        \Throwable $previous = null,
+        array $handlerContext = [],
+        BodySummarizerInterface $bodySummarizer = null
+    ): self {
+        if (!$response) {
+            return new self(
+                'Error completing request',
+                $request,
+                null,
+                $previous,
+                $handlerContext
+            );
+        }
+
+        $level = (int) \floor($response->getStatusCode() / 100);
+        if ($level === 4) {
+            $label = 'Client error';
+            $className = ClientException::class;
+        } elseif ($level === 5) {
+            $label = 'Server error';
+            $className = ServerException::class;
+        } else {
+            $label = 'Unsuccessful request';
+            $className = __CLASS__;
+        }
+
+        $uri = $request->getUri();
+        $uri = static::obfuscateUri($uri);
+
+        // Client Error: `GET /` resulted in a `404 Not Found` response:
+        // <html> ... (truncated)
+        $message = \sprintf(
+            '%s: `%s %s` resulted in a `%s %s` response',
+            $label,
+            $request->getMethod(),
+            $uri->__toString(),
+            $response->getStatusCode(),
+            $response->getReasonPhrase()
+        );
+
+        $summary = ($bodySummarizer ?? new BodySummarizer())->summarize($response);
+
+        if ($summary !== null) {
+            $message .= ":\n{$summary}\n";
+        }
+
+        return new $className($message, $request, $response, $previous, $handlerContext);
+    }
+
+    /**
+     * Obfuscates URI if there is a username and a password present
+     */
+    private static function obfuscateUri(UriInterface $uri): UriInterface
+    {
+        $userInfo = $uri->getUserInfo();
+
+        if (false !== ($pos = \strpos($userInfo, ':'))) {
+            return $uri->withUserInfo(\substr($userInfo, 0, $pos), '***');
+        }
+
+        return $uri;
+    }
+
+    /**
+     * Get the request that caused the exception
+     */
+    public function getRequest(): RequestInterface
+    {
+        return $this->request;
+    }
+
+    /**
+     * Get the associated response
+     */
+    public function getResponse(): ?ResponseInterface
+    {
+        return $this->response;
+    }
+
+    /**
+     * Check if a response was received
+     */
+    public function hasResponse(): bool
+    {
+        return $this->response !== null;
+    }
+
+    /**
+     * Get contextual information about the error from the underlying handler.
+     *
+     * The contents of this array will vary depending on which handler you are
+     * using. It may also be just an empty array. Relying on this data will
+     * couple you to a specific handler, but can give more debug information
+     * when needed.
+     */
+    public function getHandlerContext(): array
+    {
+        return $this->handlerContext;
+    }
+}

vendor/guzzlehttp/guzzle/src/Exception/ServerException.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace GuzzleHttp\Exception;
+
+/**
+ * Exception when a server error is encountered (5xx codes)
+ */
+class ServerException extends BadResponseException
+{
+}

vendor/guzzlehttp/guzzle/src/Exception/TooManyRedirectsException.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace GuzzleHttp\Exception;
+
+class TooManyRedirectsException extends RequestException
+{
+}

vendor/guzzlehttp/guzzle/src/Exception/TransferException.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace GuzzleHttp\Exception;
+
+class TransferException extends \RuntimeException implements GuzzleException
+{
+}

vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php

@@ -0,0 +1,595 @@
+<?php
+
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Exception\ConnectException;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\FulfilledPromise;
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Psr7\LazyOpenStream;
+use GuzzleHttp\TransferStats;
+use GuzzleHttp\Utils;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Creates curl resources from a request
+ *
+ * @final
+ */
+class CurlFactory implements CurlFactoryInterface
+{
+    public const CURL_VERSION_STR = 'curl_version';
+
+    /**
+     * @deprecated
+     */
+    public const LOW_CURL_VERSION_NUMBER = '7.21.2';
+
+    /**
+     * @var resource[]|\CurlHandle[]
+     */
+    private $handles = [];
+
+    /**
+     * @var int Total number of idle handles to keep in cache
+     */
+    private $maxHandles;
+
+    /**
+     * @param int $maxHandles Maximum number of idle handles.
+     */
+    public function __construct(int $maxHandles)
+    {
+        $this->maxHandles = $maxHandles;
+    }
+
+    public function create(RequestInterface $request, array $options): EasyHandle
+    {
+        if (isset($options['curl']['body_as_string'])) {
+            $options['_body_as_string'] = $options['curl']['body_as_string'];
+            unset($options['curl']['body_as_string']);
+        }
+
+        $easy = new EasyHandle;
+        $easy->request = $request;
+        $easy->options = $options;
+        $conf = $this->getDefaultConf($easy);
+        $this->applyMethod($easy, $conf);
+        $this->applyHandlerOptions($easy, $conf);
+        $this->applyHeaders($easy, $conf);
+        unset($conf['_headers']);
+
+        // Add handler options from the request configuration options
+        if (isset($options['curl'])) {
+            $conf = \array_replace($conf, $options['curl']);
+        }
+
+        $conf[\CURLOPT_HEADERFUNCTION] = $this->createHeaderFn($easy);
+        $easy->handle = $this->handles ? \array_pop($this->handles) : \curl_init();
+        curl_setopt_array($easy->handle, $conf);
+
+        return $easy;
+    }
+
+    public function release(EasyHandle $easy): void
+    {
+        $resource = $easy->handle;
+        unset($easy->handle);
+
+        if (\count($this->handles) >= $this->maxHandles) {
+            \curl_close($resource);
+        } else {
+            // Remove all callback functions as they can hold onto references
+            // and are not cleaned up by curl_reset. Using curl_setopt_array
+            // does not work for some reason, so removing each one
+            // individually.
+            \curl_setopt($resource, \CURLOPT_HEADERFUNCTION, null);
+            \curl_setopt($resource, \CURLOPT_READFUNCTION, null);
+            \curl_setopt($resource, \CURLOPT_WRITEFUNCTION, null);
+            \curl_setopt($resource, \CURLOPT_PROGRESSFUNCTION, null);
+            \curl_reset($resource);
+            $this->handles[] = $resource;
+        }
+    }
+
+    /**
+     * Completes a cURL transaction, either returning a response promise or a
+     * rejected promise.
+     *
+     * @param callable(RequestInterface, array): PromiseInterface $handler
+     * @param CurlFactoryInterface                                $factory Dictates how the handle is released
+     */
+    public static function finish(callable $handler, EasyHandle $easy, CurlFactoryInterface $factory): PromiseInterface
+    {
+        if (isset($easy->options['on_stats'])) {
+            self::invokeStats($easy);
+        }
+
+        if (!$easy->response || $easy->errno) {
+            return self::finishError($handler, $easy, $factory);
+        }
+
+        // Return the response if it is present and there is no error.
+        $factory->release($easy);
+
+        // Rewind the body of the response if possible.
+        $body = $easy->response->getBody();
+        if ($body->isSeekable()) {
+            $body->rewind();
+        }
+
+        return new FulfilledPromise($easy->response);
+    }
+
+    private static function invokeStats(EasyHandle $easy): void
+    {
+        $curlStats = \curl_getinfo($easy->handle);
+        $curlStats['appconnect_time'] = \curl_getinfo($easy->handle, \CURLINFO_APPCONNECT_TIME);
+        $stats = new TransferStats(
+            $easy->request,
+            $easy->response,
+            $curlStats['total_time'],
+            $easy->errno,
+            $curlStats
+        );
+        ($easy->options['on_stats'])($stats);
+    }
+
+    /**
+     * @param callable(RequestInterface, array): PromiseInterface $handler
+     */
+    private static function finishError(callable $handler, EasyHandle $easy, CurlFactoryInterface $factory): PromiseInterface
+    {
+        // Get error information and release the handle to the factory.
+        $ctx = [
+            'errno' => $easy->errno,
+            'error' => \curl_error($easy->handle),
+            'appconnect_time' => \curl_getinfo($easy->handle, \CURLINFO_APPCONNECT_TIME),
+        ] + \curl_getinfo($easy->handle);
+        $ctx[self::CURL_VERSION_STR] = \curl_version()['version'];
+        $factory->release($easy);
+
+        // Retry when nothing is present or when curl failed to rewind.
+        if (empty($easy->options['_err_message']) && (!$easy->errno || $easy->errno == 65)) {
+            return self::retryFailedRewind($handler, $easy, $ctx);
+        }
+
+        return self::createRejection($easy, $ctx);
+    }
+
+    private static function createRejection(EasyHandle $easy, array $ctx): PromiseInterface
+    {
+        static $connectionErrors = [
+            \CURLE_OPERATION_TIMEOUTED  => true,
+            \CURLE_COULDNT_RESOLVE_HOST => true,
+            \CURLE_COULDNT_CONNECT      => true,
+            \CURLE_SSL_CONNECT_ERROR    => true,
+            \CURLE_GOT_NOTHING          => true,
+        ];
+
+        if ($easy->createResponseException) {
+            return P\Create::rejectionFor(
+                new RequestException(
+                    'An error was encountered while creating the response',
+                    $easy->request,
+                    $easy->response,
+                    $easy->createResponseException,
+                    $ctx
+                )
+            );
+        }
+
+        // If an exception was encountered during the onHeaders event, then
+        // return a rejected promise that wraps that exception.
+        if ($easy->onHeadersException) {
+            return P\Create::rejectionFor(
+                new RequestException(
+                    'An error was encountered during the on_headers event',
+                    $easy->request,
+                    $easy->response,
+                    $easy->onHeadersException,
+                    $ctx
+                )
+            );
+        }
+
+        $message = \sprintf(
+            'cURL error %s: %s (%s)',
+            $ctx['errno'],
+            $ctx['error'],
+            'see https://curl.haxx.se/libcurl/c/libcurl-errors.html'
+        );
+        $uriString = (string) $easy->request->getUri();
+        if ($uriString !== '' && false === \strpos($ctx['error'], $uriString)) {
+            $message .= \sprintf(' for %s', $uriString);
+        }
+
+        // Create a connection exception if it was a specific error code.
+        $error = isset($connectionErrors[$easy->errno])
+            ? new ConnectException($message, $easy->request, null, $ctx)
+            : new RequestException($message, $easy->request, $easy->response, null, $ctx);
+
+        return P\Create::rejectionFor($error);
+    }
+
+    /**
+     * @return array<int|string, mixed>
+     */
+    private function getDefaultConf(EasyHandle $easy): array
+    {
+        $conf = [
+            '_headers'              => $easy->request->getHeaders(),
+            \CURLOPT_CUSTOMREQUEST  => $easy->request->getMethod(),
+            \CURLOPT_URL            => (string) $easy->request->getUri()->withFragment(''),
+            \CURLOPT_RETURNTRANSFER => false,
+            \CURLOPT_HEADER         => false,
+            \CURLOPT_CONNECTTIMEOUT => 150,
+        ];
+
+        if (\defined('CURLOPT_PROTOCOLS')) {
+            $conf[\CURLOPT_PROTOCOLS] = \CURLPROTO_HTTP | \CURLPROTO_HTTPS;
+        }
+
+        $version = $easy->request->getProtocolVersion();
+        if ($version == 1.1) {
+            $conf[\CURLOPT_HTTP_VERSION] = \CURL_HTTP_VERSION_1_1;
+        } elseif ($version == 2.0) {
+            $conf[\CURLOPT_HTTP_VERSION] = \CURL_HTTP_VERSION_2_0;
+        } else {
+            $conf[\CURLOPT_HTTP_VERSION] = \CURL_HTTP_VERSION_1_0;
+        }
+
+        return $conf;
+    }
+
+    private function applyMethod(EasyHandle $easy, array &$conf): void
+    {
+        $body = $easy->request->getBody();
+        $size = $body->getSize();
+
+        if ($size === null || $size > 0) {
+            $this->applyBody($easy->request, $easy->options, $conf);
+            return;
+        }
+
+        $method = $easy->request->getMethod();
+        if ($method === 'PUT' || $method === 'POST') {
+            // See https://tools.ietf.org/html/rfc7230#section-3.3.2
+            if (!$easy->request->hasHeader('Content-Length')) {
+                $conf[\CURLOPT_HTTPHEADER][] = 'Content-Length: 0';
+            }
+        } elseif ($method === 'HEAD') {
+            $conf[\CURLOPT_NOBODY] = true;
+            unset(
+                $conf[\CURLOPT_WRITEFUNCTION],
+                $conf[\CURLOPT_READFUNCTION],
+                $conf[\CURLOPT_FILE],
+                $conf[\CURLOPT_INFILE]
+            );
+        }
+    }
+
+    private function applyBody(RequestInterface $request, array $options, array &$conf): void
+    {
+        $size = $request->hasHeader('Content-Length')
+            ? (int) $request->getHeaderLine('Content-Length')
+            : null;
+
+        // Send the body as a string if the size is less than 1MB OR if the
+        // [curl][body_as_string] request value is set.
+        if (($size !== null && $size < 1000000) || !empty($options['_body_as_string'])) {
+            $conf[\CURLOPT_POSTFIELDS] = (string) $request->getBody();
+            // Don't duplicate the Content-Length header
+            $this->removeHeader('Content-Length', $conf);
+            $this->removeHeader('Transfer-Encoding', $conf);
+        } else {
+            $conf[\CURLOPT_UPLOAD] = true;
+            if ($size !== null) {
+                $conf[\CURLOPT_INFILESIZE] = $size;
+                $this->removeHeader('Content-Length', $conf);
+            }
+            $body = $request->getBody();
+            if ($body->isSeekable()) {
+                $body->rewind();
+            }
+            $conf[\CURLOPT_READFUNCTION] = static function ($ch, $fd, $length) use ($body) {
+                return $body->read($length);
+            };
+        }
+
+        // If the Expect header is not present, prevent curl from adding it
+        if (!$request->hasHeader('Expect')) {
+            $conf[\CURLOPT_HTTPHEADER][] = 'Expect:';
+        }
+
+        // cURL sometimes adds a content-type by default. Prevent this.
+        if (!$request->hasHeader('Content-Type')) {
+            $conf[\CURLOPT_HTTPHEADER][] = 'Content-Type:';
+        }
+    }
+
+    private function applyHeaders(EasyHandle $easy, array &$conf): void
+    {
+        foreach ($conf['_headers'] as $name => $values) {
+            foreach ($values as $value) {
+                $value = (string) $value;
+                if ($value === '') {
+                    // cURL requires a special format for empty headers.
+                    // See https://github.com/guzzle/guzzle/issues/1882 for more details.
+                    $conf[\CURLOPT_HTTPHEADER][] = "$name;";
+                } else {
+                    $conf[\CURLOPT_HTTPHEADER][] = "$name: $value";
+                }
+            }
+        }
+
+        // Remove the Accept header if one was not set
+        if (!$easy->request->hasHeader('Accept')) {
+            $conf[\CURLOPT_HTTPHEADER][] = 'Accept:';
+        }
+    }
+
+    /**
+     * Remove a header from the options array.
+     *
+     * @param string $name    Case-insensitive header to remove
+     * @param array  $options Array of options to modify
+     */
+    private function removeHeader(string $name, array &$options): void
+    {
+        foreach (\array_keys($options['_headers']) as $key) {
+            if (!\strcasecmp($key, $name)) {
+                unset($options['_headers'][$key]);
+                return;
+            }
+        }
+    }
+
+    private function applyHandlerOptions(EasyHandle $easy, array &$conf): void
+    {
+        $options = $easy->options;
+        if (isset($options['verify'])) {
+            if ($options['verify'] === false) {
+                unset($conf[\CURLOPT_CAINFO]);
+                $conf[\CURLOPT_SSL_VERIFYHOST] = 0;
+                $conf[\CURLOPT_SSL_VERIFYPEER] = false;
+            } else {
+                $conf[\CURLOPT_SSL_VERIFYHOST] = 2;
+                $conf[\CURLOPT_SSL_VERIFYPEER] = true;
+                if (\is_string($options['verify'])) {
+                    // Throw an error if the file/folder/link path is not valid or doesn't exist.
+                    if (!\file_exists($options['verify'])) {
+                        throw new \InvalidArgumentException("SSL CA bundle not found: {$options['verify']}");
+                    }
+                    // If it's a directory or a link to a directory use CURLOPT_CAPATH.
+                    // If not, it's probably a file, or a link to a file, so use CURLOPT_CAINFO.
+                    if (
+                        \is_dir($options['verify']) ||
+                        (
+                            \is_link($options['verify']) === true &&
+                            ($verifyLink = \readlink($options['verify'])) !== false &&
+                            \is_dir($verifyLink)
+                        )
+                    ) {
+                        $conf[\CURLOPT_CAPATH] = $options['verify'];
+                    } else {
+                        $conf[\CURLOPT_CAINFO] = $options['verify'];
+                    }
+                }
+            }
+        }
+
+        if (!isset($options['curl'][\CURLOPT_ENCODING]) && !empty($options['decode_content'])) {
+            $accept = $easy->request->getHeaderLine('Accept-Encoding');
+            if ($accept) {
+                $conf[\CURLOPT_ENCODING] = $accept;
+            } else {
+                // The empty string enables all available decoders and implicitly
+                // sets a matching 'Accept-Encoding' header.
+                $conf[\CURLOPT_ENCODING] = '';
+                // But as the user did not specify any acceptable encodings we need
+                // to overwrite this implicit header with an empty one.
+                $conf[\CURLOPT_HTTPHEADER][] = 'Accept-Encoding:';
+            }
+        }
+
+        if (!isset($options['sink'])) {
+            // Use a default temp stream if no sink was set.
+            $options['sink'] = \GuzzleHttp\Psr7\Utils::tryFopen('php://temp', 'w+');
+        }
+        $sink = $options['sink'];
+        if (!\is_string($sink)) {
+            $sink = \GuzzleHttp\Psr7\Utils::streamFor($sink);
+        } elseif (!\is_dir(\dirname($sink))) {
+            // Ensure that the directory exists before failing in curl.
+            throw new \RuntimeException(\sprintf('Directory %s does not exist for sink value of %s', \dirname($sink), $sink));
+        } else {
+            $sink = new LazyOpenStream($sink, 'w+');
+        }
+        $easy->sink = $sink;
+        $conf[\CURLOPT_WRITEFUNCTION] = static function ($ch, $write) use ($sink): int {
+            return $sink->write($write);
+        };
+
+        $timeoutRequiresNoSignal = false;
+        if (isset($options['timeout'])) {
+            $timeoutRequiresNoSignal |= $options['timeout'] < 1;
+            $conf[\CURLOPT_TIMEOUT_MS] = $options['timeout'] * 1000;
+        }
+
+        // CURL default value is CURL_IPRESOLVE_WHATEVER
+        if (isset($options['force_ip_resolve'])) {
+            if ('v4' === $options['force_ip_resolve']) {
+                $conf[\CURLOPT_IPRESOLVE] = \CURL_IPRESOLVE_V4;
+            } elseif ('v6' === $options['force_ip_resolve']) {
+                $conf[\CURLOPT_IPRESOLVE] = \CURL_IPRESOLVE_V6;
+            }
+        }
+
+        if (isset($options['connect_timeout'])) {
+            $timeoutRequiresNoSignal |= $options['connect_timeout'] < 1;
+            $conf[\CURLOPT_CONNECTTIMEOUT_MS] = $options['connect_timeout'] * 1000;
+        }
+
+        if ($timeoutRequiresNoSignal && \strtoupper(\substr(\PHP_OS, 0, 3)) !== 'WIN') {
+            $conf[\CURLOPT_NOSIGNAL] = true;
+        }
+
+        if (isset($options['proxy'])) {
+            if (!\is_array($options['proxy'])) {
+                $conf[\CURLOPT_PROXY] = $options['proxy'];
+            } else {
+                $scheme = $easy->request->getUri()->getScheme();
+                if (isset($options['proxy'][$scheme])) {
+                    $host = $easy->request->getUri()->getHost();
+                    if (!isset($options['proxy']['no']) || !Utils::isHostInNoProxy($host, $options['proxy']['no'])) {
+                        $conf[\CURLOPT_PROXY] = $options['proxy'][$scheme];
+                    }
+                }
+            }
+        }
+
+        if (isset($options['cert'])) {
+            $cert = $options['cert'];
+            if (\is_array($cert)) {
+                $conf[\CURLOPT_SSLCERTPASSWD] = $cert[1];
+                $cert = $cert[0];
+            }
+            if (!\file_exists($cert)) {
+                throw new \InvalidArgumentException("SSL certificate not found: {$cert}");
+            }
+            # OpenSSL (versions 0.9.3 and later) also support "P12" for PKCS#12-encoded files.
+            # see https://curl.se/libcurl/c/CURLOPT_SSLCERTTYPE.html
+            $ext = pathinfo($cert, \PATHINFO_EXTENSION);
+            if (preg_match('#^(der|p12)$#i', $ext)) {
+                $conf[\CURLOPT_SSLCERTTYPE] = strtoupper($ext);
+            }
+            $conf[\CURLOPT_SSLCERT] = $cert;
+        }
+
+        if (isset($options['ssl_key'])) {
+            if (\is_array($options['ssl_key'])) {
+                if (\count($options['ssl_key']) === 2) {
+                    [$sslKey, $conf[\CURLOPT_SSLKEYPASSWD]] = $options['ssl_key'];
+                } else {
+                    [$sslKey] = $options['ssl_key'];
+                }
+            }
+
+            $sslKey = $sslKey ?? $options['ssl_key'];
+
+            if (!\file_exists($sslKey)) {
+                throw new \InvalidArgumentException("SSL private key not found: {$sslKey}");
+            }
+            $conf[\CURLOPT_SSLKEY] = $sslKey;
+        }
+
+        if (isset($options['progress'])) {
+            $progress = $options['progress'];
+            if (!\is_callable($progress)) {
+                throw new \InvalidArgumentException('progress client option must be callable');
+            }
+            $conf[\CURLOPT_NOPROGRESS] = false;
+            $conf[\CURLOPT_PROGRESSFUNCTION] = static function ($resource, int $downloadSize, int $downloaded, int $uploadSize, int $uploaded) use ($progress) {
+                $progress($downloadSize, $downloaded, $uploadSize, $uploaded);
+            };
+        }
+
+        if (!empty($options['debug'])) {
+            $conf[\CURLOPT_STDERR] = Utils::debugResource($options['debug']);
+            $conf[\CURLOPT_VERBOSE] = true;
+        }
+    }
+
+    /**
+     * This function ensures that a response was set on a transaction. If one
+     * was not set, then the request is retried if possible. This error
+     * typically means you are sending a payload, curl encountered a
+     * "Connection died, retrying a fresh connect" error, tried to rewind the
+     * stream, and then encountered a "necessary data rewind wasn't possible"
+     * error, causing the request to be sent through curl_multi_info_read()
+     * without an error status.
+     *
+     * @param callable(RequestInterface, array): PromiseInterface $handler
+     */
+    private static function retryFailedRewind(callable $handler, EasyHandle $easy, array $ctx): PromiseInterface
+    {
+        try {
+            // Only rewind if the body has been read from.
+            $body = $easy->request->getBody();
+            if ($body->tell() > 0) {
+                $body->rewind();
+            }
+        } catch (\RuntimeException $e) {
+            $ctx['error'] = 'The connection unexpectedly failed without '
+                . 'providing an error. The request would have been retried, '
+                . 'but attempting to rewind the request body failed. '
+                . 'Exception: ' . $e;
+            return self::createRejection($easy, $ctx);
+        }
+
+        // Retry no more than 3 times before giving up.
+        if (!isset($easy->options['_curl_retries'])) {
+            $easy->options['_curl_retries'] = 1;
+        } elseif ($easy->options['_curl_retries'] == 2) {
+            $ctx['error'] = 'The cURL request was retried 3 times '
+                . 'and did not succeed. The most likely reason for the failure '
+                . 'is that cURL was unable to rewind the body of the request '
+                . 'and subsequent retries resulted in the same error. Turn on '
+                . 'the debug option to see what went wrong. See '
+                . 'https://bugs.php.net/bug.php?id=47204 for more information.';
+            return self::createRejection($easy, $ctx);
+        } else {
+            $easy->options['_curl_retries']++;
+        }
+
+        return $handler($easy->request, $easy->options);
+    }
+
+    private function createHeaderFn(EasyHandle $easy): callable
+    {
+        if (isset($easy->options['on_headers'])) {
+            $onHeaders = $easy->options['on_headers'];
+
+            if (!\is_callable($onHeaders)) {
+                throw new \InvalidArgumentException('on_headers must be callable');
+            }
+        } else {
+            $onHeaders = null;
+        }
+
+        return static function ($ch, $h) use (
+            $onHeaders,
+            $easy,
+            &$startingResponse
+        ) {
+            $value = \trim($h);
+            if ($value === '') {
+                $startingResponse = true;
+                try {
+                    $easy->createResponse();
+                } catch (\Exception $e) {
+                    $easy->createResponseException = $e;
+                    return -1;
+                }
+                if ($onHeaders !== null) {
+                    try {
+                        $onHeaders($easy->response);
+                    } catch (\Exception $e) {
+                        // Associate the exception with the handle and trigger
+                        // a curl header write error by returning 0.
+                        $easy->onHeadersException = $e;
+                        return -1;
+                    }
+                }
+            } elseif ($startingResponse) {
+                $startingResponse = false;
+                $easy->headers = [$value];
+            } else {
+                $easy->headers[] = $value;
+            }
+            return \strlen($h);
+        };
+    }
+}

vendor/guzzlehttp/guzzle/src/Handler/CurlFactoryInterface.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace GuzzleHttp\Handler;
+
+use Psr\Http\Message\RequestInterface;
+
+interface CurlFactoryInterface
+{
+    /**
+     * Creates a cURL handle resource.
+     *
+     * @param RequestInterface $request Request
+     * @param array            $options Transfer options
+     *
+     * @throws \RuntimeException when an option cannot be applied
+     */
+    public function create(RequestInterface $request, array $options): EasyHandle;
+
+    /**
+     * Release an easy handle, allowing it to be reused or closed.
+     *
+     * This function must call unset on the easy handle's "handle" property.
+     */
+    public function release(EasyHandle $easy): void;
+}

vendor/guzzlehttp/guzzle/src/Handler/CurlHandler.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * HTTP handler that uses cURL easy handles as a transport layer.
+ *
+ * When using the CurlHandler, custom curl options can be specified as an
+ * associative array of curl option constants mapping to values in the
+ * **curl** key of the "client" key of the request.
+ *
+ * @final
+ */
+class CurlHandler
+{
+    /**
+     * @var CurlFactoryInterface
+     */
+    private $factory;
+
+    /**
+     * Accepts an associative array of options:
+     *
+     * - handle_factory: Optional curl factory used to create cURL handles.
+     *
+     * @param array{handle_factory?: ?CurlFactoryInterface} $options Array of options to use with the handler
+     */
+    public function __construct(array $options = [])
+    {
+        $this->factory = $options['handle_factory']
+            ?? new CurlFactory(3);
+    }
+
+    public function __invoke(RequestInterface $request, array $options): PromiseInterface
+    {
+        if (isset($options['delay'])) {
+            \usleep($options['delay'] * 1000);
+        }
+
+        $easy = $this->factory->create($request, $options);
+        \curl_exec($easy->handle);
+        $easy->errno = \curl_errno($easy->handle);
+
+        return CurlFactory::finish($this, $easy, $this->factory);
+    }
+}

vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php

@@ -0,0 +1,261 @@
+<?php
+
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Utils;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Returns an asynchronous response using curl_multi_* functions.
+ *
+ * When using the CurlMultiHandler, custom curl options can be specified as an
+ * associative array of curl option constants mapping to values in the
+ * **curl** key of the provided request options.
+ *
+ * @property resource|\CurlMultiHandle $_mh Internal use only. Lazy loaded multi-handle.
+ *
+ * @final
+ */
+class CurlMultiHandler
+{
+    /**
+     * @var CurlFactoryInterface
+     */
+    private $factory;
+
+    /**
+     * @var int
+     */
+    private $selectTimeout;
+
+    /**
+     * @var resource|\CurlMultiHandle|null the currently executing resource in `curl_multi_exec`.
+     */
+    private $active;
+
+    /**
+     * @var array Request entry handles, indexed by handle id in `addRequest`.
+     *
+     * @see CurlMultiHandler::addRequest
+     */
+    private $handles = [];
+
+    /**
+     * @var array<int, float> An array of delay times, indexed by handle id in `addRequest`.
+     *
+     * @see CurlMultiHandler::addRequest
+     */
+    private $delays = [];
+
+    /**
+     * @var array<mixed> An associative array of CURLMOPT_* options and corresponding values for curl_multi_setopt()
+     */
+    private $options = [];
+
+    /**
+     * This handler accepts the following options:
+     *
+     * - handle_factory: An optional factory  used to create curl handles
+     * - select_timeout: Optional timeout (in seconds) to block before timing
+     *   out while selecting curl handles. Defaults to 1 second.
+     * - options: An associative array of CURLMOPT_* options and
+     *   corresponding values for curl_multi_setopt()
+     */
+    public function __construct(array $options = [])
+    {
+        $this->factory = $options['handle_factory'] ?? new CurlFactory(50);
+
+        if (isset($options['select_timeout'])) {
+            $this->selectTimeout = $options['select_timeout'];
+        } elseif ($selectTimeout = Utils::getenv('GUZZLE_CURL_SELECT_TIMEOUT')) {
+            @trigger_error('Since guzzlehttp/guzzle 7.2.0: Using environment variable GUZZLE_CURL_SELECT_TIMEOUT is deprecated. Use option "select_timeout" instead.', \E_USER_DEPRECATED);
+            $this->selectTimeout = (int) $selectTimeout;
+        } else {
+            $this->selectTimeout = 1;
+        }
+
+        $this->options = $options['options'] ?? [];
+    }
+
+    /**
+     * @param string $name
+     *
+     * @return resource|\CurlMultiHandle
+     *
+     * @throws \BadMethodCallException when another field as `_mh` will be gotten
+     * @throws \RuntimeException       when curl can not initialize a multi handle
+     */
+    public function __get($name)
+    {
+        if ($name !== '_mh') {
+            throw new \BadMethodCallException("Can not get other property as '_mh'.");
+        }
+
+        $multiHandle = \curl_multi_init();
+
+        if (false === $multiHandle) {
+            throw new \RuntimeException('Can not initialize curl multi handle.');
+        }
+
+        $this->_mh = $multiHandle;
+
+        foreach ($this->options as $option => $value) {
+            // A warning is raised in case of a wrong option.
+            curl_multi_setopt($this->_mh, $option, $value);
+        }
+
+        return $this->_mh;
+    }
+
+    public function __destruct()
+    {
+        if (isset($this->_mh)) {
+            \curl_multi_close($this->_mh);
+            unset($this->_mh);
+        }
+    }
+
+    public function __invoke(RequestInterface $request, array $options): PromiseInterface
+    {
+        $easy = $this->factory->create($request, $options);
+        $id = (int) $easy->handle;
+
+        $promise = new Promise(
+            [$this, 'execute'],
+            function () use ($id) {
+                return $this->cancel($id);
+            }
+        );
+
+        $this->addRequest(['easy' => $easy, 'deferred' => $promise]);
+
+        return $promise;
+    }
+
+    /**
+     * Ticks the curl event loop.
+     */
+    public function tick(): void
+    {
+        // Add any delayed handles if needed.
+        if ($this->delays) {
+            $currentTime = Utils::currentTime();
+            foreach ($this->delays as $id => $delay) {
+                if ($currentTime >= $delay) {
+                    unset($this->delays[$id]);
+                    \curl_multi_add_handle(
+                        $this->_mh,
+                        $this->handles[$id]['easy']->handle
+                    );
+                }
+            }
+        }
+
+        // Step through the task queue which may add additional requests.
+        P\Utils::queue()->run();
+
+        if ($this->active && \curl_multi_select($this->_mh, $this->selectTimeout) === -1) {
+            // Perform a usleep if a select returns -1.
+            // See: https://bugs.php.net/bug.php?id=61141
+            \usleep(250);
+        }
+
+        while (\curl_multi_exec($this->_mh, $this->active) === \CURLM_CALL_MULTI_PERFORM);
+
+        $this->processMessages();
+    }
+
+    /**
+     * Runs until all outstanding connections have completed.
+     */
+    public function execute(): void
+    {
+        $queue = P\Utils::queue();
+
+        while ($this->handles || !$queue->isEmpty()) {
+            // If there are no transfers, then sleep for the next delay
+            if (!$this->active && $this->delays) {
+                \usleep($this->timeToNext());
+            }
+            $this->tick();
+        }
+    }
+
+    private function addRequest(array $entry): void
+    {
+        $easy = $entry['easy'];
+        $id = (int) $easy->handle;
+        $this->handles[$id] = $entry;
+        if (empty($easy->options['delay'])) {
+            \curl_multi_add_handle($this->_mh, $easy->handle);
+        } else {
+            $this->delays[$id] = Utils::currentTime() + ($easy->options['delay'] / 1000);
+        }
+    }
+
+    /**
+     * Cancels a handle from sending and removes references to it.
+     *
+     * @param int $id Handle ID to cancel and remove.
+     *
+     * @return bool True on success, false on failure.
+     */
+    private function cancel($id): bool
+    {
+        if (!is_int($id)) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing an integer to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        // Cannot cancel if it has been processed.
+        if (!isset($this->handles[$id])) {
+            return false;
+        }
+
+        $handle = $this->handles[$id]['easy']->handle;
+        unset($this->delays[$id], $this->handles[$id]);
+        \curl_multi_remove_handle($this->_mh, $handle);
+        \curl_close($handle);
+
+        return true;
+    }
+
+    private function processMessages(): void
+    {
+        while ($done = \curl_multi_info_read($this->_mh)) {
+            if ($done['msg'] !== \CURLMSG_DONE) {
+                // if it's not done, then it would be premature to remove the handle. ref https://github.com/guzzle/guzzle/pull/2892#issuecomment-945150216
+                continue;
+            }
+            $id = (int) $done['handle'];
+            \curl_multi_remove_handle($this->_mh, $done['handle']);
+
+            if (!isset($this->handles[$id])) {
+                // Probably was cancelled.
+                continue;
+            }
+
+            $entry = $this->handles[$id];
+            unset($this->handles[$id], $this->delays[$id]);
+            $entry['easy']->errno = $done['result'];
+            $entry['deferred']->resolve(
+                CurlFactory::finish($this, $entry['easy'], $this->factory)
+            );
+        }
+    }
+
+    private function timeToNext(): int
+    {
+        $currentTime = Utils::currentTime();
+        $nextTime = \PHP_INT_MAX;
+        foreach ($this->delays as $time) {
+            if ($time < $nextTime) {
+                $nextTime = $time;
+            }
+        }
+
+        return ((int) \max(0, $nextTime - $currentTime)) * 1000000;
+    }
+}

vendor/guzzlehttp/guzzle/src/Handler/EasyHandle.php

@@ -0,0 +1,112 @@
+<?php
+
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Psr7\Response;
+use GuzzleHttp\Utils;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Represents a cURL easy handle and the data it populates.
+ *
+ * @internal
+ */
+final class EasyHandle
+{
+    /**
+     * @var resource|\CurlHandle cURL resource
+     */
+    public $handle;
+
+    /**
+     * @var StreamInterface Where data is being written
+     */
+    public $sink;
+
+    /**
+     * @var array Received HTTP headers so far
+     */
+    public $headers = [];
+
+    /**
+     * @var ResponseInterface|null Received response (if any)
+     */
+    public $response;
+
+    /**
+     * @var RequestInterface Request being sent
+     */
+    public $request;
+
+    /**
+     * @var array Request options
+     */
+    public $options = [];
+
+    /**
+     * @var int cURL error number (if any)
+     */
+    public $errno = 0;
+
+    /**
+     * @var \Throwable|null Exception during on_headers (if any)
+     */
+    public $onHeadersException;
+
+    /**
+     * @var \Exception|null Exception during createResponse (if any)
+     */
+    public $createResponseException;
+
+    /**
+     * Attach a response to the easy handle based on the received headers.
+     *
+     * @throws \RuntimeException if no headers have been received or the first
+     *                           header line is invalid.
+     */
+    public function createResponse(): void
+    {
+        [$ver, $status, $reason, $headers] = HeaderProcessor::parseHeaders($this->headers);
+
+        $normalizedKeys = Utils::normalizeHeaderKeys($headers);
+
+        if (!empty($this->options['decode_content']) && isset($normalizedKeys['content-encoding'])) {
+            $headers['x-encoded-content-encoding'] = $headers[$normalizedKeys['content-encoding']];
+            unset($headers[$normalizedKeys['content-encoding']]);
+            if (isset($normalizedKeys['content-length'])) {
+                $headers['x-encoded-content-length'] = $headers[$normalizedKeys['content-length']];
+
+                $bodyLength = (int) $this->sink->getSize();
+                if ($bodyLength) {
+                    $headers[$normalizedKeys['content-length']] = $bodyLength;
+                } else {
+                    unset($headers[$normalizedKeys['content-length']]);
+                }
+            }
+        }
+
+        // Attach a response to the easy handle with the parsed headers.
+        $this->response = new Response(
+            $status,
+            $headers,
+            $this->sink,
+            $ver,
+            $reason
+        );
+    }
+
+    /**
+     * @param string $name
+     *
+     * @return void
+     *
+     * @throws \BadMethodCallException
+     */
+    public function __get($name)
+    {
+        $msg = $name === 'handle' ? 'The EasyHandle has been released' : 'Invalid property: ' . $name;
+        throw new \BadMethodCallException($msg);
+    }
+}

vendor/guzzlehttp/guzzle/src/Handler/HeaderProcessor.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Utils;
+
+/**
+ * @internal
+ */
+final class HeaderProcessor
+{
+    /**
+     * Returns the HTTP version, status code, reason phrase, and headers.
+     *
+     * @param string[] $headers
+     *
+     * @throws \RuntimeException
+     *
+     * @return array{0:string, 1:int, 2:?string, 3:array}
+     */
+    public static function parseHeaders(array $headers): array
+    {
+        if ($headers === []) {
+            throw new \RuntimeException('Expected a non-empty array of header data');
+        }
+
+        $parts = \explode(' ', \array_shift($headers), 3);
+        $version = \explode('/', $parts[0])[1] ?? null;
+
+        if ($version === null) {
+            throw new \RuntimeException('HTTP version missing from header data');
+        }
+
+        $status = $parts[1] ?? null;
+
+        if ($status === null) {
+            throw new \RuntimeException('HTTP status code missing from header data');
+        }
+
+        return [$version, (int) $status, $parts[2] ?? null, Utils::headersFromLines($headers)];
+    }
+}

vendor/guzzlehttp/guzzle/src/Handler/MockHandler.php

@@ -0,0 +1,211 @@
+<?php
+
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\HandlerStack;
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\TransferStats;
+use GuzzleHttp\Utils;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Handler that returns responses or throw exceptions from a queue.
+ *
+ * @final
+ */
+class MockHandler implements \Countable
+{
+    /**
+     * @var array
+     */
+    private $queue = [];
+
+    /**
+     * @var RequestInterface|null
+     */
+    private $lastRequest;
+
+    /**
+     * @var array
+     */
+    private $lastOptions = [];
+
+    /**
+     * @var callable|null
+     */
+    private $onFulfilled;
+
+    /**
+     * @var callable|null
+     */
+    private $onRejected;
+
+    /**
+     * Creates a new MockHandler that uses the default handler stack list of
+     * middlewares.
+     *
+     * @param array|null    $queue       Array of responses, callables, or exceptions.
+     * @param callable|null $onFulfilled Callback to invoke when the return value is fulfilled.
+     * @param callable|null $onRejected  Callback to invoke when the return value is rejected.
+     */
+    public static function createWithMiddleware(array $queue = null, callable $onFulfilled = null, callable $onRejected = null): HandlerStack
+    {
+        return HandlerStack::create(new self($queue, $onFulfilled, $onRejected));
+    }
+
+    /**
+     * The passed in value must be an array of
+     * {@see \Psr\Http\Message\ResponseInterface} objects, Exceptions,
+     * callables, or Promises.
+     *
+     * @param array<int, mixed>|null $queue       The parameters to be passed to the append function, as an indexed array.
+     * @param callable|null          $onFulfilled Callback to invoke when the return value is fulfilled.
+     * @param callable|null          $onRejected  Callback to invoke when the return value is rejected.
+     */
+    public function __construct(array $queue = null, callable $onFulfilled = null, callable $onRejected = null)
+    {
+        $this->onFulfilled = $onFulfilled;
+        $this->onRejected = $onRejected;
+
+        if ($queue) {
+            // array_values included for BC
+            $this->append(...array_values($queue));
+        }
+    }
+
+    public function __invoke(RequestInterface $request, array $options): PromiseInterface
+    {
+        if (!$this->queue) {
+            throw new \OutOfBoundsException('Mock queue is empty');
+        }
+
+        if (isset($options['delay']) && \is_numeric($options['delay'])) {
+            \usleep((int) $options['delay'] * 1000);
+        }
+
+        $this->lastRequest = $request;
+        $this->lastOptions = $options;
+        $response = \array_shift($this->queue);
+
+        if (isset($options['on_headers'])) {
+            if (!\is_callable($options['on_headers'])) {
+                throw new \InvalidArgumentException('on_headers must be callable');
+            }
+            try {
+                $options['on_headers']($response);
+            } catch (\Exception $e) {
+                $msg = 'An error was encountered during the on_headers event';
+                $response = new RequestException($msg, $request, $response, $e);
+            }
+        }
+
+        if (\is_callable($response)) {
+            $response = $response($request, $options);
+        }
+
+        $response = $response instanceof \Throwable
+            ? P\Create::rejectionFor($response)
+            : P\Create::promiseFor($response);
+
+        return $response->then(
+            function (?ResponseInterface $value) use ($request, $options) {
+                $this->invokeStats($request, $options, $value);
+                if ($this->onFulfilled) {
+                    ($this->onFulfilled)($value);
+                }
+
+                if ($value !== null && isset($options['sink'])) {
+                    $contents = (string) $value->getBody();
+                    $sink = $options['sink'];
+
+                    if (\is_resource($sink)) {
+                        \fwrite($sink, $contents);
+                    } elseif (\is_string($sink)) {
+                        \file_put_contents($sink, $contents);
+                    } elseif ($sink instanceof StreamInterface) {
+                        $sink->write($contents);
+                    }
+                }
+
+                return $value;
+            },
+            function ($reason) use ($request, $options) {
+                $this->invokeStats($request, $options, null, $reason);
+                if ($this->onRejected) {
+                    ($this->onRejected)($reason);
+                }
+                return P\Create::rejectionFor($reason);
+            }
+        );
+    }
+
+    /**
+     * Adds one or more variadic requests, exceptions, callables, or promises
+     * to the queue.
+     *
+     * @param mixed ...$values
+     */
+    public function append(...$values): void
+    {
+        foreach ($values as $value) {
+            if ($value instanceof ResponseInterface
+                || $value instanceof \Throwable
+                || $value instanceof PromiseInterface
+                || \is_callable($value)
+            ) {
+                $this->queue[] = $value;
+            } else {
+                throw new \TypeError('Expected a Response, Promise, Throwable or callable. Found ' . Utils::describeType($value));
+            }
+        }
+    }
+
+    /**
+     * Get the last received request.
+     */
+    public function getLastRequest(): ?RequestInterface
+    {
+        return $this->lastRequest;
+    }
+
+    /**
+     * Get the last received request options.
+     */
+    public function getLastOptions(): array
+    {
+        return $this->lastOptions;
+    }
+
+    /**
+     * Returns the number of remaining items in the queue.
+     */
+    public function count(): int
+    {
+        return \count($this->queue);
+    }
+
+    public function reset(): void
+    {
+        $this->queue = [];
+    }
+
+    /**
+     * @param mixed $reason Promise or reason.
+     */
+    private function invokeStats(
+        RequestInterface $request,
+        array $options,
+        ResponseInterface $response = null,
+        $reason = null
+    ): void {
+        if (isset($options['on_stats'])) {
+            $transferTime = $options['transfer_time'] ?? 0;
+            $stats = new TransferStats($request, $response, $transferTime, $reason);
+            ($options['on_stats'])($stats);
+        }
+    }
+}

vendor/guzzlehttp/guzzle/src/Handler/Proxy.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\RequestOptions;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Provides basic proxies for handlers.
+ *
+ * @final
+ */
+class Proxy
+{
+    /**
+     * Sends synchronous requests to a specific handler while sending all other
+     * requests to another handler.
+     *
+     * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $default Handler used for normal responses
+     * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $sync    Handler used for synchronous responses.
+     *
+     * @return callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface Returns the composed handler.
+     */
+    public static function wrapSync(callable $default, callable $sync): callable
+    {
+        return static function (RequestInterface $request, array $options) use ($default, $sync): PromiseInterface {
+            return empty($options[RequestOptions::SYNCHRONOUS]) ? $default($request, $options) : $sync($request, $options);
+        };
+    }
+
+    /**
+     * Sends streaming requests to a streaming compatible handler while sending
+     * all other requests to a default handler.
+     *
+     * This, for example, could be useful for taking advantage of the
+     * performance benefits of curl while still supporting true streaming
+     * through the StreamHandler.
+     *
+     * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $default   Handler used for non-streaming responses
+     * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $streaming Handler used for streaming responses
+     *
+     * @return callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface Returns the composed handler.
+     */
+    public static function wrapStreaming(callable $default, callable $streaming): callable
+    {
+        return static function (RequestInterface $request, array $options) use ($default, $streaming): PromiseInterface {
+            return empty($options['stream']) ? $default($request, $options) : $streaming($request, $options);
+        };
+    }
+}

vendor/guzzlehttp/guzzle/src/Handler/StreamHandler.php

@@ -0,0 +1,586 @@
+<?php
+
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Exception\ConnectException;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\FulfilledPromise;
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Psr7;
+use GuzzleHttp\TransferStats;
+use GuzzleHttp\Utils;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\StreamInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * HTTP handler that uses PHP's HTTP stream wrapper.
+ *
+ * @final
+ */
+class StreamHandler
+{
+    /**
+     * @var array
+     */
+    private $lastHeaders = [];
+
+    /**
+     * Sends an HTTP request.
+     *
+     * @param RequestInterface $request Request to send.
+     * @param array            $options Request transfer options.
+     */
+    public function __invoke(RequestInterface $request, array $options): PromiseInterface
+    {
+        // Sleep if there is a delay specified.
+        if (isset($options['delay'])) {
+            \usleep($options['delay'] * 1000);
+        }
+
+        $startTime = isset($options['on_stats']) ? Utils::currentTime() : null;
+
+        try {
+            // Does not support the expect header.
+            $request = $request->withoutHeader('Expect');
+
+            // Append a content-length header if body size is zero to match
+            // cURL's behavior.
+            if (0 === $request->getBody()->getSize()) {
+                $request = $request->withHeader('Content-Length', '0');
+            }
+
+            return $this->createResponse(
+                $request,
+                $options,
+                $this->createStream($request, $options),
+                $startTime
+            );
+        } catch (\InvalidArgumentException $e) {
+            throw $e;
+        } catch (\Exception $e) {
+            // Determine if the error was a networking error.
+            $message = $e->getMessage();
+            // This list can probably get more comprehensive.
+            if (false !== \strpos($message, 'getaddrinfo') // DNS lookup failed
+                || false !== \strpos($message, 'Connection refused')
+                || false !== \strpos($message, "couldn't connect to host") // error on HHVM
+                || false !== \strpos($message, "connection attempt failed")
+            ) {
+                $e = new ConnectException($e->getMessage(), $request, $e);
+            } else {
+                $e = RequestException::wrapException($request, $e);
+            }
+            $this->invokeStats($options, $request, $startTime, null, $e);
+
+            return P\Create::rejectionFor($e);
+        }
+    }
+
+    private function invokeStats(
+        array $options,
+        RequestInterface $request,
+        ?float $startTime,
+        ResponseInterface $response = null,
+        \Throwable $error = null
+    ): void {
+        if (isset($options['on_stats'])) {
+            $stats = new TransferStats($request, $response, Utils::currentTime() - $startTime, $error, []);
+            ($options['on_stats'])($stats);
+        }
+    }
+
+    /**
+     * @param resource $stream
+     */
+    private function createResponse(RequestInterface $request, array $options, $stream, ?float $startTime): PromiseInterface
+    {
+        $hdrs = $this->lastHeaders;
+        $this->lastHeaders = [];
+
+        try {
+            [$ver, $status, $reason, $headers] = HeaderProcessor::parseHeaders($hdrs);
+        } catch (\Exception $e) {
+            return P\Create::rejectionFor(
+                new RequestException('An error was encountered while creating the response', $request, null, $e)
+            );
+        }
+
+        [$stream, $headers] = $this->checkDecode($options, $headers, $stream);
+        $stream = Psr7\Utils::streamFor($stream);
+        $sink = $stream;
+
+        if (\strcasecmp('HEAD', $request->getMethod())) {
+            $sink = $this->createSink($stream, $options);
+        }
+
+        try {
+            $response = new Psr7\Response($status, $headers, $sink, $ver, $reason);
+        } catch (\Exception $e) {
+            return P\Create::rejectionFor(
+                new RequestException('An error was encountered while creating the response', $request, null, $e)
+            );
+        }
+
+        if (isset($options['on_headers'])) {
+            try {
+                $options['on_headers']($response);
+            } catch (\Exception $e) {
+                return P\Create::rejectionFor(
+                    new RequestException('An error was encountered during the on_headers event', $request, $response, $e)
+                );
+            }
+        }
+
+        // Do not drain when the request is a HEAD request because they have
+        // no body.
+        if ($sink !== $stream) {
+            $this->drain($stream, $sink, $response->getHeaderLine('Content-Length'));
+        }
+
+        $this->invokeStats($options, $request, $startTime, $response, null);
+
+        return new FulfilledPromise($response);
+    }
+
+    private function createSink(StreamInterface $stream, array $options): StreamInterface
+    {
+        if (!empty($options['stream'])) {
+            return $stream;
+        }
+
+        $sink = $options['sink'] ?? Psr7\Utils::tryFopen('php://temp', 'r+');
+
+        return \is_string($sink) ? new Psr7\LazyOpenStream($sink, 'w+') : Psr7\Utils::streamFor($sink);
+    }
+
+    /**
+     * @param resource $stream
+     */
+    private function checkDecode(array $options, array $headers, $stream): array
+    {
+        // Automatically decode responses when instructed.
+        if (!empty($options['decode_content'])) {
+            $normalizedKeys = Utils::normalizeHeaderKeys($headers);
+            if (isset($normalizedKeys['content-encoding'])) {
+                $encoding = $headers[$normalizedKeys['content-encoding']];
+                if ($encoding[0] === 'gzip' || $encoding[0] === 'deflate') {
+                    $stream = new Psr7\InflateStream(Psr7\Utils::streamFor($stream));
+                    $headers['x-encoded-content-encoding'] = $headers[$normalizedKeys['content-encoding']];
+
+                    // Remove content-encoding header
+                    unset($headers[$normalizedKeys['content-encoding']]);
+
+                    // Fix content-length header
+                    if (isset($normalizedKeys['content-length'])) {
+                        $headers['x-encoded-content-length'] = $headers[$normalizedKeys['content-length']];
+                        $length = (int) $stream->getSize();
+                        if ($length === 0) {
+                            unset($headers[$normalizedKeys['content-length']]);
+                        } else {
+                            $headers[$normalizedKeys['content-length']] = [$length];
+                        }
+                    }
+                }
+            }
+        }
+
+        return [$stream, $headers];
+    }
+
+    /**
+     * Drains the source stream into the "sink" client option.
+     *
+     * @param string $contentLength Header specifying the amount of
+     *                              data to read.
+     *
+     * @throws \RuntimeException when the sink option is invalid.
+     */
+    private function drain(StreamInterface $source, StreamInterface $sink, string $contentLength): StreamInterface
+    {
+        // If a content-length header is provided, then stop reading once
+        // that number of bytes has been read. This can prevent infinitely
+        // reading from a stream when dealing with servers that do not honor
+        // Connection: Close headers.
+        Psr7\Utils::copyToStream(
+            $source,
+            $sink,
+            (\strlen($contentLength) > 0 && (int) $contentLength > 0) ? (int) $contentLength : -1
+        );
+
+        $sink->seek(0);
+        $source->close();
+
+        return $sink;
+    }
+
+    /**
+     * Create a resource and check to ensure it was created successfully
+     *
+     * @param callable $callback Callable that returns stream resource
+     *
+     * @return resource
+     *
+     * @throws \RuntimeException on error
+     */
+    private function createResource(callable $callback)
+    {
+        $errors = [];
+        \set_error_handler(static function ($_, $msg, $file, $line) use (&$errors): bool {
+            $errors[] = [
+                'message' => $msg,
+                'file'    => $file,
+                'line'    => $line
+            ];
+            return true;
+        });
+
+        try {
+            $resource = $callback();
+        } finally {
+            \restore_error_handler();
+        }
+
+        if (!$resource) {
+            $message = 'Error creating resource: ';
+            foreach ($errors as $err) {
+                foreach ($err as $key => $value) {
+                    $message .= "[$key] $value" . \PHP_EOL;
+                }
+            }
+            throw new \RuntimeException(\trim($message));
+        }
+
+        return $resource;
+    }
+
+    /**
+     * @return resource
+     */
+    private function createStream(RequestInterface $request, array $options)
+    {
+        static $methods;
+        if (!$methods) {
+            $methods = \array_flip(\get_class_methods(__CLASS__));
+        }
+
+        // HTTP/1.1 streams using the PHP stream wrapper require a
+        // Connection: close header
+        if ($request->getProtocolVersion() == '1.1'
+            && !$request->hasHeader('Connection')
+        ) {
+            $request = $request->withHeader('Connection', 'close');
+        }
+
+        // Ensure SSL is verified by default
+        if (!isset($options['verify'])) {
+            $options['verify'] = true;
+        }
+
+        $params = [];
+        $context = $this->getDefaultContext($request);
+
+        if (isset($options['on_headers']) && !\is_callable($options['on_headers'])) {
+            throw new \InvalidArgumentException('on_headers must be callable');
+        }
+
+        if (!empty($options)) {
+            foreach ($options as $key => $value) {
+                $method = "add_{$key}";
+                if (isset($methods[$method])) {
+                    $this->{$method}($request, $context, $value, $params);
+                }
+            }
+        }
+
+        if (isset($options['stream_context'])) {
+            if (!\is_array($options['stream_context'])) {
+                throw new \InvalidArgumentException('stream_context must be an array');
+            }
+            $context = \array_replace_recursive($context, $options['stream_context']);
+        }
+
+        // Microsoft NTLM authentication only supported with curl handler
+        if (isset($options['auth'][2]) && 'ntlm' === $options['auth'][2]) {
+            throw new \InvalidArgumentException('Microsoft NTLM authentication only supported with curl handler');
+        }
+
+        $uri = $this->resolveHost($request, $options);
+
+        $contextResource = $this->createResource(
+            static function () use ($context, $params) {
+                return \stream_context_create($context, $params);
+            }
+        );
+
+        return $this->createResource(
+            function () use ($uri, &$http_response_header, $contextResource, $context, $options, $request) {
+                $resource = @\fopen((string) $uri, 'r', false, $contextResource);
+                $this->lastHeaders = $http_response_header;
+
+                if (false === $resource) {
+                    throw new ConnectException(sprintf('Connection refused for URI %s', $uri), $request, null, $context);
+                }
+
+                if (isset($options['read_timeout'])) {
+                    $readTimeout = $options['read_timeout'];
+                    $sec = (int) $readTimeout;
+                    $usec = ($readTimeout - $sec) * 100000;
+                    \stream_set_timeout($resource, $sec, $usec);
+                }
+
+                return $resource;
+            }
+        );
+    }
+
+    private function resolveHost(RequestInterface $request, array $options): UriInterface
+    {
+        $uri = $request->getUri();
+
+        if (isset($options['force_ip_resolve']) && !\filter_var($uri->getHost(), \FILTER_VALIDATE_IP)) {
+            if ('v4' === $options['force_ip_resolve']) {
+                $records = \dns_get_record($uri->getHost(), \DNS_A);
+                if (false === $records || !isset($records[0]['ip'])) {
+                    throw new ConnectException(\sprintf("Could not resolve IPv4 address for host '%s'", $uri->getHost()), $request);
+                }
+                return $uri->withHost($records[0]['ip']);
+            }
+            if ('v6' === $options['force_ip_resolve']) {
+                $records = \dns_get_record($uri->getHost(), \DNS_AAAA);
+                if (false === $records || !isset($records[0]['ipv6'])) {
+                    throw new ConnectException(\sprintf("Could not resolve IPv6 address for host '%s'", $uri->getHost()), $request);
+                }
+                return $uri->withHost('[' . $records[0]['ipv6'] . ']');
+            }
+        }
+
+        return $uri;
+    }
+
+    private function getDefaultContext(RequestInterface $request): array
+    {
+        $headers = '';
+        foreach ($request->getHeaders() as $name => $value) {
+            foreach ($value as $val) {
+                $headers .= "$name: $val\r\n";
+            }
+        }
+
+        $context = [
+            'http' => [
+                'method'           => $request->getMethod(),
+                'header'           => $headers,
+                'protocol_version' => $request->getProtocolVersion(),
+                'ignore_errors'    => true,
+                'follow_location'  => 0,
+            ],
+        ];
+
+        $body = (string) $request->getBody();
+
+        if (!empty($body)) {
+            $context['http']['content'] = $body;
+            // Prevent the HTTP handler from adding a Content-Type header.
+            if (!$request->hasHeader('Content-Type')) {
+                $context['http']['header'] .= "Content-Type:\r\n";
+            }
+        }
+
+        $context['http']['header'] = \rtrim($context['http']['header']);
+
+        return $context;
+    }
+
+    /**
+     * @param mixed $value as passed via Request transfer options.
+     */
+    private function add_proxy(RequestInterface $request, array &$options, $value, array &$params): void
+    {
+        $uri = null;
+
+        if (!\is_array($value)) {
+            $uri = $value;
+        } else {
+            $scheme = $request->getUri()->getScheme();
+            if (isset($value[$scheme])) {
+                if (!isset($value['no']) || !Utils::isHostInNoProxy($request->getUri()->getHost(), $value['no'])) {
+                    $uri = $value[$scheme];
+                }
+            }
+        }
+
+        if (!$uri) {
+            return;
+        }
+
+        $parsed = $this->parse_proxy($uri);
+        $options['http']['proxy'] = $parsed['proxy'];
+
+        if ($parsed['auth']) {
+            if (!isset($options['http']['header'])) {
+                $options['http']['header'] = [];
+            }
+            $options['http']['header'] .= "\r\nProxy-Authorization: {$parsed['auth']}";
+        }
+    }
+
+    /**
+     * Parses the given proxy URL to make it compatible with the format PHP's stream context expects.
+     */
+    private function parse_proxy(string $url): array
+    {
+        $parsed = \parse_url($url);
+
+        if ($parsed !== false && isset($parsed['scheme']) && $parsed['scheme'] === 'http') {
+            if (isset($parsed['host']) && isset($parsed['port'])) {
+                $auth = null;
+                if (isset($parsed['user']) && isset($parsed['pass'])) {
+                    $auth = \base64_encode("{$parsed['user']}:{$parsed['pass']}");
+                }
+
+                return [
+                    'proxy' => "tcp://{$parsed['host']}:{$parsed['port']}",
+                    'auth' => $auth ? "Basic {$auth}" : null,
+                ];
+            }
+        }
+
+        // Return proxy as-is.
+        return [
+            'proxy' => $url,
+            'auth' => null,
+        ];
+    }
+
+    /**
+     * @param mixed $value as passed via Request transfer options.
+     */
+    private function add_timeout(RequestInterface $request, array &$options, $value, array &$params): void
+    {
+        if ($value > 0) {
+            $options['http']['timeout'] = $value;
+        }
+    }
+
+    /**
+     * @param mixed $value as passed via Request transfer options.
+     */
+    private function add_verify(RequestInterface $request, array &$options, $value, array &$params): void
+    {
+        if ($value === false) {
+            $options['ssl']['verify_peer'] = false;
+            $options['ssl']['verify_peer_name'] = false;
+
+            return;
+        }
+
+        if (\is_string($value)) {
+            $options['ssl']['cafile'] = $value;
+            if (!\file_exists($value)) {
+                throw new \RuntimeException("SSL CA bundle not found: $value");
+            }
+        } elseif ($value !== true) {
+            throw new \InvalidArgumentException('Invalid verify request option');
+        }
+
+        $options['ssl']['verify_peer'] = true;
+        $options['ssl']['verify_peer_name'] = true;
+        $options['ssl']['allow_self_signed'] = false;
+    }
+
+    /**
+     * @param mixed $value as passed via Request transfer options.
+     */
+    private function add_cert(RequestInterface $request, array &$options, $value, array &$params): void
+    {
+        if (\is_array($value)) {
+            $options['ssl']['passphrase'] = $value[1];
+            $value = $value[0];
+        }
+
+        if (!\file_exists($value)) {
+            throw new \RuntimeException("SSL certificate not found: {$value}");
+        }
+
+        $options['ssl']['local_cert'] = $value;
+    }
+
+    /**
+     * @param mixed $value as passed via Request transfer options.
+     */
+    private function add_progress(RequestInterface $request, array &$options, $value, array &$params): void
+    {
+        self::addNotification(
+            $params,
+            static function ($code, $a, $b, $c, $transferred, $total) use ($value) {
+                if ($code == \STREAM_NOTIFY_PROGRESS) {
+                    // The upload progress cannot be determined. Use 0 for cURL compatibility:
+                    // https://curl.se/libcurl/c/CURLOPT_PROGRESSFUNCTION.html
+                    $value($total, $transferred, 0, 0);
+                }
+            }
+        );
+    }
+
+    /**
+     * @param mixed $value as passed via Request transfer options.
+     */
+    private function add_debug(RequestInterface $request, array &$options, $value, array &$params): void
+    {
+        if ($value === false) {
+            return;
+        }
+
+        static $map = [
+            \STREAM_NOTIFY_CONNECT       => 'CONNECT',
+            \STREAM_NOTIFY_AUTH_REQUIRED => 'AUTH_REQUIRED',
+            \STREAM_NOTIFY_AUTH_RESULT   => 'AUTH_RESULT',
+            \STREAM_NOTIFY_MIME_TYPE_IS  => 'MIME_TYPE_IS',
+            \STREAM_NOTIFY_FILE_SIZE_IS  => 'FILE_SIZE_IS',
+            \STREAM_NOTIFY_REDIRECTED    => 'REDIRECTED',
+            \STREAM_NOTIFY_PROGRESS      => 'PROGRESS',
+            \STREAM_NOTIFY_FAILURE       => 'FAILURE',
+            \STREAM_NOTIFY_COMPLETED     => 'COMPLETED',
+            \STREAM_NOTIFY_RESOLVE       => 'RESOLVE',
+        ];
+        static $args = ['severity', 'message', 'message_code', 'bytes_transferred', 'bytes_max'];
+
+        $value = Utils::debugResource($value);
+        $ident = $request->getMethod() . ' ' . $request->getUri()->withFragment('');
+        self::addNotification(
+            $params,
+            static function (int $code, ...$passed) use ($ident, $value, $map, $args): void {
+                \fprintf($value, '<%s> [%s] ', $ident, $map[$code]);
+                foreach (\array_filter($passed) as $i => $v) {
+                    \fwrite($value, $args[$i] . ': "' . $v . '" ');
+                }
+                \fwrite($value, "\n");
+            }
+        );
+    }
+
+    private static function addNotification(array &$params, callable $notify): void
+    {
+        // Wrap the existing function if needed.
+        if (!isset($params['notification'])) {
+            $params['notification'] = $notify;
+        } else {
+            $params['notification'] = self::callArray([
+                $params['notification'],
+                $notify
+            ]);
+        }
+    }
+
+    private static function callArray(array $functions): callable
+    {
+        return static function (...$args) use ($functions) {
+            foreach ($functions as $fn) {
+                $fn(...$args);
+            }
+        };
+    }
+}

vendor/guzzlehttp/guzzle/src/HandlerStack.php

@@ -0,0 +1,275 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Creates a composed Guzzle handler function by stacking middlewares on top of
+ * an HTTP handler function.
+ *
+ * @final
+ */
+class HandlerStack
+{
+    /**
+     * @var (callable(RequestInterface, array): PromiseInterface)|null
+     */
+    private $handler;
+
+    /**
+     * @var array{(callable(callable(RequestInterface, array): PromiseInterface): callable), (string|null)}[]
+     */
+    private $stack = [];
+
+    /**
+     * @var (callable(RequestInterface, array): PromiseInterface)|null
+     */
+    private $cached;
+
+    /**
+     * Creates a default handler stack that can be used by clients.
+     *
+     * The returned handler will wrap the provided handler or use the most
+     * appropriate default handler for your system. The returned HandlerStack has
+     * support for cookies, redirects, HTTP error exceptions, and preparing a body
+     * before sending.
+     *
+     * The returned handler stack can be passed to a client in the "handler"
+     * option.
+     *
+     * @param (callable(RequestInterface, array): PromiseInterface)|null $handler HTTP handler function to use with the stack. If no
+     *                                                                            handler is provided, the best handler for your
+     *                                                                            system will be utilized.
+     */
+    public static function create(?callable $handler = null): self
+    {
+        $stack = new self($handler ?: Utils::chooseHandler());
+        $stack->push(Middleware::httpErrors(), 'http_errors');
+        $stack->push(Middleware::redirect(), 'allow_redirects');
+        $stack->push(Middleware::cookies(), 'cookies');
+        $stack->push(Middleware::prepareBody(), 'prepare_body');
+
+        return $stack;
+    }
+
+    /**
+     * @param (callable(RequestInterface, array): PromiseInterface)|null $handler Underlying HTTP handler.
+     */
+    public function __construct(callable $handler = null)
+    {
+        $this->handler = $handler;
+    }
+
+    /**
+     * Invokes the handler stack as a composed handler
+     *
+     * @return ResponseInterface|PromiseInterface
+     */
+    public function __invoke(RequestInterface $request, array $options)
+    {
+        $handler = $this->resolve();
+
+        return $handler($request, $options);
+    }
+
+    /**
+     * Dumps a string representation of the stack.
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        $depth = 0;
+        $stack = [];
+
+        if ($this->handler !== null) {
+            $stack[] = "0) Handler: " . $this->debugCallable($this->handler);
+        }
+
+        $result = '';
+        foreach (\array_reverse($this->stack) as $tuple) {
+            $depth++;
+            $str = "{$depth}) Name: '{$tuple[1]}', ";
+            $str .= "Function: " . $this->debugCallable($tuple[0]);
+            $result = "> {$str}\n{$result}";
+            $stack[] = $str;
+        }
+
+        foreach (\array_keys($stack) as $k) {
+            $result .= "< {$stack[$k]}\n";
+        }
+
+        return $result;
+    }
+
+    /**
+     * Set the HTTP handler that actually returns a promise.
+     *
+     * @param callable(RequestInterface, array): PromiseInterface $handler Accepts a request and array of options and
+     *                                                                     returns a Promise.
+     */
+    public function setHandler(callable $handler): void
+    {
+        $this->handler = $handler;
+        $this->cached = null;
+    }
+
+    /**
+     * Returns true if the builder has a handler.
+     */
+    public function hasHandler(): bool
+    {
+        return $this->handler !== null ;
+    }
+
+    /**
+     * Unshift a middleware to the bottom of the stack.
+     *
+     * @param callable(callable): callable $middleware Middleware function
+     * @param string                       $name       Name to register for this middleware.
+     */
+    public function unshift(callable $middleware, ?string $name = null): void
+    {
+        \array_unshift($this->stack, [$middleware, $name]);
+        $this->cached = null;
+    }
+
+    /**
+     * Push a middleware to the top of the stack.
+     *
+     * @param callable(callable): callable $middleware Middleware function
+     * @param string                       $name       Name to register for this middleware.
+     */
+    public function push(callable $middleware, string $name = ''): void
+    {
+        $this->stack[] = [$middleware, $name];
+        $this->cached = null;
+    }
+
+    /**
+     * Add a middleware before another middleware by name.
+     *
+     * @param string                       $findName   Middleware to find
+     * @param callable(callable): callable $middleware Middleware function
+     * @param string                       $withName   Name to register for this middleware.
+     */
+    public function before(string $findName, callable $middleware, string $withName = ''): void
+    {
+        $this->splice($findName, $withName, $middleware, true);
+    }
+
+    /**
+     * Add a middleware after another middleware by name.
+     *
+     * @param string                       $findName   Middleware to find
+     * @param callable(callable): callable $middleware Middleware function
+     * @param string                       $withName   Name to register for this middleware.
+     */
+    public function after(string $findName, callable $middleware, string $withName = ''): void
+    {
+        $this->splice($findName, $withName, $middleware, false);
+    }
+
+    /**
+     * Remove a middleware by instance or name from the stack.
+     *
+     * @param callable|string $remove Middleware to remove by instance or name.
+     */
+    public function remove($remove): void
+    {
+        if (!is_string($remove) && !is_callable($remove)) {
+            trigger_deprecation('guzzlehttp/guzzle', '7.4', 'Not passing a callable or string to %s::%s() is deprecated and will cause an error in 8.0.', __CLASS__, __FUNCTION__);
+        }
+
+        $this->cached = null;
+        $idx = \is_callable($remove) ? 0 : 1;
+        $this->stack = \array_values(\array_filter(
+            $this->stack,
+            static function ($tuple) use ($idx, $remove) {
+                return $tuple[$idx] !== $remove;
+            }
+        ));
+    }
+
+    /**
+     * Compose the middleware and handler into a single callable function.
+     *
+     * @return callable(RequestInterface, array): PromiseInterface
+     */
+    public function resolve(): callable
+    {
+        if ($this->cached === null) {
+            if (($prev = $this->handler) === null) {
+                throw new \LogicException('No handler has been specified');
+            }
+
+            foreach (\array_reverse($this->stack) as $fn) {
+                /** @var callable(RequestInterface, array): PromiseInterface $prev */
+                $prev = $fn[0]($prev);
+            }
+
+            $this->cached = $prev;
+        }
+
+        return $this->cached;
+    }
+
+    private function findByName(string $name): int
+    {
+        foreach ($this->stack as $k => $v) {
+            if ($v[1] === $name) {
+                return $k;
+            }
+        }
+
+        throw new \InvalidArgumentException("Middleware not found: $name");
+    }
+
+    /**
+     * Splices a function into the middleware list at a specific position.
+     */
+    private function splice(string $findName, string $withName, callable $middleware, bool $before): void
+    {
+        $this->cached = null;
+        $idx = $this->findByName($findName);
+        $tuple = [$middleware, $withName];
+
+        if ($before) {
+            if ($idx === 0) {
+                \array_unshift($this->stack, $tuple);
+            } else {
+                $replacement = [$tuple, $this->stack[$idx]];
+                \array_splice($this->stack, $idx, 1, $replacement);
+            }
+        } elseif ($idx === \count($this->stack) - 1) {
+            $this->stack[] = $tuple;
+        } else {
+            $replacement = [$this->stack[$idx], $tuple];
+            \array_splice($this->stack, $idx, 1, $replacement);
+        }
+    }
+
+    /**
+     * Provides a debug string for a given callable.
+     *
+     * @param callable|string $fn Function to write as a string.
+     */
+    private function debugCallable($fn): string
+    {
+        if (\is_string($fn)) {
+            return "callable({$fn})";
+        }
+
+        if (\is_array($fn)) {
+            return \is_string($fn[0])
+                ? "callable({$fn[0]}::{$fn[1]})"
+                : "callable(['" . \get_class($fn[0]) . "', '{$fn[1]}'])";
+        }
+
+        /** @var object $fn */
+        return 'callable(' . \spl_object_hash($fn) . ')';
+    }
+}

vendor/guzzlehttp/guzzle/src/MessageFormatter.php

@@ -0,0 +1,198 @@
+<?php
+
+namespace GuzzleHttp;
+
+use Psr\Http\Message\MessageInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Formats log messages using variable substitutions for requests, responses,
+ * and other transactional data.
+ *
+ * The following variable substitutions are supported:
+ *
+ * - {request}:        Full HTTP request message
+ * - {response}:       Full HTTP response message
+ * - {ts}:             ISO 8601 date in GMT
+ * - {date_iso_8601}   ISO 8601 date in GMT
+ * - {date_common_log} Apache common log date using the configured timezone.
+ * - {host}:           Host of the request
+ * - {method}:         Method of the request
+ * - {uri}:            URI of the request
+ * - {version}:        Protocol version
+ * - {target}:         Request target of the request (path + query + fragment)
+ * - {hostname}:       Hostname of the machine that sent the request
+ * - {code}:           Status code of the response (if available)
+ * - {phrase}:         Reason phrase of the response  (if available)
+ * - {error}:          Any error messages (if available)
+ * - {req_header_*}:   Replace `*` with the lowercased name of a request header to add to the message
+ * - {res_header_*}:   Replace `*` with the lowercased name of a response header to add to the message
+ * - {req_headers}:    Request headers
+ * - {res_headers}:    Response headers
+ * - {req_body}:       Request body
+ * - {res_body}:       Response body
+ *
+ * @final
+ */
+class MessageFormatter implements MessageFormatterInterface
+{
+    /**
+     * Apache Common Log Format.
+     *
+     * @link https://httpd.apache.org/docs/2.4/logs.html#common
+     *
+     * @var string
+     */
+    public const CLF = "{hostname} {req_header_User-Agent} - [{date_common_log}] \"{method} {target} HTTP/{version}\" {code} {res_header_Content-Length}";
+    public const DEBUG = ">>>>>>>>\n{request}\n<<<<<<<<\n{response}\n--------\n{error}";
+    public const SHORT = '[{ts}] "{method} {target} HTTP/{version}" {code}';
+
+    /**
+     * @var string Template used to format log messages
+     */
+    private $template;
+
+    /**
+     * @param string $template Log message template
+     */
+    public function __construct(?string $template = self::CLF)
+    {
+        $this->template = $template ?: self::CLF;
+    }
+
+    /**
+     * Returns a formatted message string.
+     *
+     * @param RequestInterface       $request  Request that was sent
+     * @param ResponseInterface|null $response Response that was received
+     * @param \Throwable|null        $error    Exception that was received
+     */
+    public function format(RequestInterface $request, ?ResponseInterface $response = null, ?\Throwable $error = null): string
+    {
+        $cache = [];
+
+        /** @var string */
+        return \preg_replace_callback(
+            '/{\s*([A-Za-z_\-\.0-9]+)\s*}/',
+            function (array $matches) use ($request, $response, $error, &$cache) {
+                if (isset($cache[$matches[1]])) {
+                    return $cache[$matches[1]];
+                }
+
+                $result = '';
+                switch ($matches[1]) {
+                    case 'request':
+                        $result = Psr7\Message::toString($request);
+                        break;
+                    case 'response':
+                        $result = $response ? Psr7\Message::toString($response) : '';
+                        break;
+                    case 'req_headers':
+                        $result = \trim($request->getMethod()
+                                . ' ' . $request->getRequestTarget())
+                            . ' HTTP/' . $request->getProtocolVersion() . "\r\n"
+                            . $this->headers($request);
+                        break;
+                    case 'res_headers':
+                        $result = $response ?
+                            \sprintf(
+                                'HTTP/%s %d %s',
+                                $response->getProtocolVersion(),
+                                $response->getStatusCode(),
+                                $response->getReasonPhrase()
+                            ) . "\r\n" . $this->headers($response)
+                            : 'NULL';
+                        break;
+                    case 'req_body':
+                        $result = $request->getBody()->__toString();
+                        break;
+                    case 'res_body':
+                        if (!$response instanceof ResponseInterface) {
+                            $result = 'NULL';
+                            break;
+                        }
+
+                        $body = $response->getBody();
+
+                        if (!$body->isSeekable()) {
+                            $result = 'RESPONSE_NOT_LOGGEABLE';
+                            break;
+                        }
+
+                        $result = $response->getBody()->__toString();
+                        break;
+                    case 'ts':
+                    case 'date_iso_8601':
+                        $result = \gmdate('c');
+                        break;
+                    case 'date_common_log':
+                        $result = \date('d/M/Y:H:i:s O');
+                        break;
+                    case 'method':
+                        $result = $request->getMethod();
+                        break;
+                    case 'version':
+                        $result = $request->getProtocolVersion();
+                        break;
+                    case 'uri':
+                    case 'url':
+                        $result = $request->getUri()->__toString();
+                        break;
+                    case 'target':
+                        $result = $request->getRequestTarget();
+                        break;
+                    case 'req_version':
+                        $result = $request->getProtocolVersion();
+                        break;
+                    case 'res_version':
+                        $result = $response
+                            ? $response->getProtocolVersion()
+                            : 'NULL';
+                        break;
+                    case 'host':
+                        $result = $request->getHeaderLine('Host');
+                        break;
+                    case 'hostname':
+                        $result = \gethostname();
+                        break;
+                    case 'code':
+                        $result = $response ? $response->getStatusCode() : 'NULL';
+                        break;
+                    case 'phrase':
+                        $result = $response ? $response->getReasonPhrase() : 'NULL';
+                        break;
+                    case 'error':
+                        $result = $error ? $error->getMessage() : 'NULL';
+                        break;
+                    default:
+                        // handle prefixed dynamic headers
+                        if (\strpos($matches[1], 'req_header_') === 0) {
+                            $result = $request->getHeaderLine(\substr($matches[1], 11));
+                        } elseif (\strpos($matches[1], 'res_header_') === 0) {
+                            $result = $response
+                                ? $response->getHeaderLine(\substr($matches[1], 11))
+                                : 'NULL';
+                        }
+                }
+
+                $cache[$matches[1]] = $result;
+                return $result;
+            },
+            $this->template
+        );
+    }
+
+    /**
+     * Get headers from message as string
+     */
+    private function headers(MessageInterface $message): string
+    {
+        $result = '';
+        foreach ($message->getHeaders() as $name => $values) {
+            $result .= $name . ': ' . \implode(', ', $values) . "\r\n";
+        }
+
+        return \trim($result);
+    }
+}

vendor/guzzlehttp/guzzle/src/MessageFormatterInterface.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace GuzzleHttp;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+interface MessageFormatterInterface
+{
+    /**
+     * Returns a formatted message string.
+     *
+     * @param RequestInterface       $request  Request that was sent
+     * @param ResponseInterface|null $response Response that was received
+     * @param \Throwable|null        $error    Exception that was received
+     */
+    public function format(RequestInterface $request, ?ResponseInterface $response = null, ?\Throwable $error = null): string;
+}

vendor/guzzlehttp/guzzle/src/Middleware.php

@@ -0,0 +1,260 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Cookie\CookieJarInterface;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Functions used to create and wrap handlers with handler middleware.
+ */
+final class Middleware
+{
+    /**
+     * Middleware that adds cookies to requests.
+     *
+     * The options array must be set to a CookieJarInterface in order to use
+     * cookies. This is typically handled for you by a client.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function cookies(): callable
+    {
+        return static function (callable $handler): callable {
+            return static function ($request, array $options) use ($handler) {
+                if (empty($options['cookies'])) {
+                    return $handler($request, $options);
+                } elseif (!($options['cookies'] instanceof CookieJarInterface)) {
+                    throw new \InvalidArgumentException('cookies must be an instance of GuzzleHttp\Cookie\CookieJarInterface');
+                }
+                $cookieJar = $options['cookies'];
+                $request = $cookieJar->withCookieHeader($request);
+                return $handler($request, $options)
+                    ->then(
+                        static function (ResponseInterface $response) use ($cookieJar, $request): ResponseInterface {
+                            $cookieJar->extractCookies($request, $response);
+                            return $response;
+                        }
+                    );
+            };
+        };
+    }
+
+    /**
+     * Middleware that throws exceptions for 4xx or 5xx responses when the
+     * "http_errors" request option is set to true.
+     *
+     * @param BodySummarizerInterface|null $bodySummarizer The body summarizer to use in exception messages.
+     *
+     * @return callable(callable): callable Returns a function that accepts the next handler.
+     */
+    public static function httpErrors(BodySummarizerInterface $bodySummarizer = null): callable
+    {
+        return static function (callable $handler) use ($bodySummarizer): callable {
+            return static function ($request, array $options) use ($handler, $bodySummarizer) {
+                if (empty($options['http_errors'])) {
+                    return $handler($request, $options);
+                }
+                return $handler($request, $options)->then(
+                    static function (ResponseInterface $response) use ($request, $bodySummarizer) {
+                        $code = $response->getStatusCode();
+                        if ($code < 400) {
+                            return $response;
+                        }
+                        throw RequestException::create($request, $response, null, [], $bodySummarizer);
+                    }
+                );
+            };
+        };
+    }
+
+    /**
+     * Middleware that pushes history data to an ArrayAccess container.
+     *
+     * @param array|\ArrayAccess<int, array> $container Container to hold the history (by reference).
+     *
+     * @return callable(callable): callable Returns a function that accepts the next handler.
+     *
+     * @throws \InvalidArgumentException if container is not an array or ArrayAccess.
+     */
+    public static function history(&$container): callable
+    {
+        if (!\is_array($container) && !$container instanceof \ArrayAccess) {
+            throw new \InvalidArgumentException('history container must be an array or object implementing ArrayAccess');
+        }
+
+        return static function (callable $handler) use (&$container): callable {
+            return static function (RequestInterface $request, array $options) use ($handler, &$container) {
+                return $handler($request, $options)->then(
+                    static function ($value) use ($request, &$container, $options) {
+                        $container[] = [
+                            'request'  => $request,
+                            'response' => $value,
+                            'error'    => null,
+                            'options'  => $options
+                        ];
+                        return $value;
+                    },
+                    static function ($reason) use ($request, &$container, $options) {
+                        $container[] = [
+                            'request'  => $request,
+                            'response' => null,
+                            'error'    => $reason,
+                            'options'  => $options
+                        ];
+                        return P\Create::rejectionFor($reason);
+                    }
+                );
+            };
+        };
+    }
+
+    /**
+     * Middleware that invokes a callback before and after sending a request.
+     *
+     * The provided listener cannot modify or alter the response. It simply
+     * "taps" into the chain to be notified before returning the promise. The
+     * before listener accepts a request and options array, and the after
+     * listener accepts a request, options array, and response promise.
+     *
+     * @param callable $before Function to invoke before forwarding the request.
+     * @param callable $after  Function invoked after forwarding.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function tap(callable $before = null, callable $after = null): callable
+    {
+        return static function (callable $handler) use ($before, $after): callable {
+            return static function (RequestInterface $request, array $options) use ($handler, $before, $after) {
+                if ($before) {
+                    $before($request, $options);
+                }
+                $response = $handler($request, $options);
+                if ($after) {
+                    $after($request, $options, $response);
+                }
+                return $response;
+            };
+        };
+    }
+
+    /**
+     * Middleware that handles request redirects.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function redirect(): callable
+    {
+        return static function (callable $handler): RedirectMiddleware {
+            return new RedirectMiddleware($handler);
+        };
+    }
+
+    /**
+     * Middleware that retries requests based on the boolean result of
+     * invoking the provided "decider" function.
+     *
+     * If no delay function is provided, a simple implementation of exponential
+     * backoff will be utilized.
+     *
+     * @param callable $decider Function that accepts the number of retries,
+     *                          a request, [response], and [exception] and
+     *                          returns true if the request is to be retried.
+     * @param callable $delay   Function that accepts the number of retries and
+     *                          returns the number of milliseconds to delay.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function retry(callable $decider, callable $delay = null): callable
+    {
+        return static function (callable $handler) use ($decider, $delay): RetryMiddleware {
+            return new RetryMiddleware($decider, $handler, $delay);
+        };
+    }
+
+    /**
+     * Middleware that logs requests, responses, and errors using a message
+     * formatter.
+     *
+     * @phpstan-param \Psr\Log\LogLevel::* $logLevel  Level at which to log requests.
+     *
+     * @param LoggerInterface                            $logger    Logs messages.
+     * @param MessageFormatterInterface|MessageFormatter $formatter Formatter used to create message strings.
+     * @param string                                     $logLevel  Level at which to log requests.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function log(LoggerInterface $logger, $formatter, string $logLevel = 'info'): callable
+    {
+        // To be compatible with Guzzle 7.1.x we need to allow users to pass a MessageFormatter
+        if (!$formatter instanceof MessageFormatter && !$formatter instanceof MessageFormatterInterface) {
+            throw new \LogicException(sprintf('Argument 2 to %s::log() must be of type %s', self::class, MessageFormatterInterface::class));
+        }
+
+        return static function (callable $handler) use ($logger, $formatter, $logLevel): callable {
+            return static function (RequestInterface $request, array $options = []) use ($handler, $logger, $formatter, $logLevel) {
+                return $handler($request, $options)->then(
+                    static function ($response) use ($logger, $request, $formatter, $logLevel): ResponseInterface {
+                        $message = $formatter->format($request, $response);
+                        $logger->log($logLevel, $message);
+                        return $response;
+                    },
+                    static function ($reason) use ($logger, $request, $formatter): PromiseInterface {
+                        $response = $reason instanceof RequestException ? $reason->getResponse() : null;
+                        $message = $formatter->format($request, $response, P\Create::exceptionFor($reason));
+                        $logger->error($message);
+                        return P\Create::rejectionFor($reason);
+                    }
+                );
+            };
+        };
+    }
+
+    /**
+     * This middleware adds a default content-type if possible, a default
+     * content-length or transfer-encoding header, and the expect header.
+     */
+    public static function prepareBody(): callable
+    {
+        return static function (callable $handler): PrepareBodyMiddleware {
+            return new PrepareBodyMiddleware($handler);
+        };
+    }
+
+    /**
+     * Middleware that applies a map function to the request before passing to
+     * the next handler.
+     *
+     * @param callable $fn Function that accepts a RequestInterface and returns
+     *                     a RequestInterface.
+     */
+    public static function mapRequest(callable $fn): callable
+    {
+        return static function (callable $handler) use ($fn): callable {
+            return static function (RequestInterface $request, array $options) use ($handler, $fn) {
+                return $handler($fn($request), $options);
+            };
+        };
+    }
+
+    /**
+     * Middleware that applies a map function to the resolved promise's
+     * response.
+     *
+     * @param callable $fn Function that accepts a ResponseInterface and
+     *                     returns a ResponseInterface.
+     */
+    public static function mapResponse(callable $fn): callable
+    {
+        return static function (callable $handler) use ($fn): callable {
+            return static function (RequestInterface $request, array $options) use ($handler, $fn) {
+                return $handler($request, $options)->then($fn);
+            };
+        };
+    }
+}

vendor/guzzlehttp/guzzle/src/Pool.php

@@ -0,0 +1,125 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\EachPromise;
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Promise\PromisorInterface;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Sends an iterator of requests concurrently using a capped pool size.
+ *
+ * The pool will read from an iterator until it is cancelled or until the
+ * iterator is consumed. When a request is yielded, the request is sent after
+ * applying the "request_options" request options (if provided in the ctor).
+ *
+ * When a function is yielded by the iterator, the function is provided the
+ * "request_options" array that should be merged on top of any existing
+ * options, and the function MUST then return a wait-able promise.
+ *
+ * @final
+ */
+class Pool implements PromisorInterface
+{
+    /**
+     * @var EachPromise
+     */
+    private $each;
+
+    /**
+     * @param ClientInterface $client   Client used to send the requests.
+     * @param array|\Iterator $requests Requests or functions that return
+     *                                  requests to send concurrently.
+     * @param array           $config   Associative array of options
+     *                                  - concurrency: (int) Maximum number of requests to send concurrently
+     *                                  - options: Array of request options to apply to each request.
+     *                                  - fulfilled: (callable) Function to invoke when a request completes.
+     *                                  - rejected: (callable) Function to invoke when a request is rejected.
+     */
+    public function __construct(ClientInterface $client, $requests, array $config = [])
+    {
+        if (!isset($config['concurrency'])) {
+            $config['concurrency'] = 25;
+        }
+
+        if (isset($config['options'])) {
+            $opts = $config['options'];
+            unset($config['options']);
+        } else {
+            $opts = [];
+        }
+
+        $iterable = P\Create::iterFor($requests);
+        $requests = static function () use ($iterable, $client, $opts) {
+            foreach ($iterable as $key => $rfn) {
+                if ($rfn instanceof RequestInterface) {
+                    yield $key => $client->sendAsync($rfn, $opts);
+                } elseif (\is_callable($rfn)) {
+                    yield $key => $rfn($opts);
+                } else {
+                    throw new \InvalidArgumentException('Each value yielded by the iterator must be a Psr7\Http\Message\RequestInterface or a callable that returns a promise that fulfills with a Psr7\Message\Http\ResponseInterface object.');
+                }
+            }
+        };
+
+        $this->each = new EachPromise($requests(), $config);
+    }
+
+    /**
+     * Get promise
+     */
+    public function promise(): PromiseInterface
+    {
+        return $this->each->promise();
+    }
+
+    /**
+     * Sends multiple requests concurrently and returns an array of responses
+     * and exceptions that uses the same ordering as the provided requests.
+     *
+     * IMPORTANT: This method keeps every request and response in memory, and
+     * as such, is NOT recommended when sending a large number or an
+     * indeterminate number of requests concurrently.
+     *
+     * @param ClientInterface $client   Client used to send the requests
+     * @param array|\Iterator $requests Requests to send concurrently.
+     * @param array           $options  Passes through the options available in
+     *                                  {@see \GuzzleHttp\Pool::__construct}
+     *
+     * @return array Returns an array containing the response or an exception
+     *               in the same order that the requests were sent.
+     *
+     * @throws \InvalidArgumentException if the event format is incorrect.
+     */
+    public static function batch(ClientInterface $client, $requests, array $options = []): array
+    {
+        $res = [];
+        self::cmpCallback($options, 'fulfilled', $res);
+        self::cmpCallback($options, 'rejected', $res);
+        $pool = new static($client, $requests, $options);
+        $pool->promise()->wait();
+        \ksort($res);
+
+        return $res;
+    }
+
+    /**
+     * Execute callback(s)
+     */
+    private static function cmpCallback(array &$options, string $name, array &$results): void
+    {
+        if (!isset($options[$name])) {
+            $options[$name] = static function ($v, $k) use (&$results) {
+                $results[$k] = $v;
+            };
+        } else {
+            $currentFn = $options[$name];
+            $options[$name] = static function ($v, $k) use (&$results, $currentFn) {
+                $currentFn($v, $k);
+                $results[$k] = $v;
+            };
+        }
+    }
+}

vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php

@@ -0,0 +1,104 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Prepares requests that contain a body, adding the Content-Length,
+ * Content-Type, and Expect headers.
+ *
+ * @final
+ */
+class PrepareBodyMiddleware
+{
+    /**
+     * @var callable(RequestInterface, array): PromiseInterface
+     */
+    private $nextHandler;
+
+    /**
+     * @param callable(RequestInterface, array): PromiseInterface $nextHandler Next handler to invoke.
+     */
+    public function __construct(callable $nextHandler)
+    {
+        $this->nextHandler = $nextHandler;
+    }
+
+    public function __invoke(RequestInterface $request, array $options): PromiseInterface
+    {
+        $fn = $this->nextHandler;
+
+        // Don't do anything if the request has no body.
+        if ($request->getBody()->getSize() === 0) {
+            return $fn($request, $options);
+        }
+
+        $modify = [];
+
+        // Add a default content-type if possible.
+        if (!$request->hasHeader('Content-Type')) {
+            if ($uri = $request->getBody()->getMetadata('uri')) {
+                if (is_string($uri) && $type = Psr7\MimeType::fromFilename($uri)) {
+                    $modify['set_headers']['Content-Type'] = $type;
+                }
+            }
+        }
+
+        // Add a default content-length or transfer-encoding header.
+        if (!$request->hasHeader('Content-Length')
+            && !$request->hasHeader('Transfer-Encoding')
+        ) {
+            $size = $request->getBody()->getSize();
+            if ($size !== null) {
+                $modify['set_headers']['Content-Length'] = $size;
+            } else {
+                $modify['set_headers']['Transfer-Encoding'] = 'chunked';
+            }
+        }
+
+        // Add the expect header if needed.
+        $this->addExpectHeader($request, $options, $modify);
+
+        return $fn(Psr7\Utils::modifyRequest($request, $modify), $options);
+    }
+
+    /**
+     * Add expect header
+     */
+    private function addExpectHeader(RequestInterface $request, array $options, array &$modify): void
+    {
+        // Determine if the Expect header should be used
+        if ($request->hasHeader('Expect')) {
+            return;
+        }
+
+        $expect = $options['expect'] ?? null;
+
+        // Return if disabled or if you're not using HTTP/1.1 or HTTP/2.0
+        if ($expect === false || $request->getProtocolVersion() < 1.1) {
+            return;
+        }
+
+        // The expect header is unconditionally enabled
+        if ($expect === true) {
+            $modify['set_headers']['Expect'] = '100-Continue';
+            return;
+        }
+
+        // By default, send the expect header when the payload is > 1mb
+        if ($expect === null) {
+            $expect = 1048576;
+        }
+
+        // Always add if the body cannot be rewound, the size cannot be
+        // determined, or the size is greater than the cutoff threshold
+        $body = $request->getBody();
+        $size = $body->getSize();
+
+        if ($size === null || $size >= (int) $expect || !$body->isSeekable()) {
+            $modify['set_headers']['Expect'] = '100-Continue';
+        }
+    }
+}

vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php

@@ -0,0 +1,216 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Exception\BadResponseException;
+use GuzzleHttp\Exception\TooManyRedirectsException;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Request redirect middleware.
+ *
+ * Apply this middleware like other middleware using
+ * {@see \GuzzleHttp\Middleware::redirect()}.
+ *
+ * @final
+ */
+class RedirectMiddleware
+{
+    public const HISTORY_HEADER = 'X-Guzzle-Redirect-History';
+
+    public const STATUS_HISTORY_HEADER = 'X-Guzzle-Redirect-Status-History';
+
+    /**
+     * @var array
+     */
+    public static $defaultSettings = [
+        'max'             => 5,
+        'protocols'       => ['http', 'https'],
+        'strict'          => false,
+        'referer'         => false,
+        'track_redirects' => false,
+    ];
+
+    /**
+     * @var callable(RequestInterface, array): PromiseInterface
+     */
+    private $nextHandler;
+
+    /**
+     * @param callable(RequestInterface, array): PromiseInterface $nextHandler Next handler to invoke.
+     */
+    public function __construct(callable $nextHandler)
+    {
+        $this->nextHandler = $nextHandler;
+    }
+
+    public function __invoke(RequestInterface $request, array $options): PromiseInterface
+    {
+        $fn = $this->nextHandler;
+
+        if (empty($options['allow_redirects'])) {
+            return $fn($request, $options);
+        }
+
+        if ($options['allow_redirects'] === true) {
+            $options['allow_redirects'] = self::$defaultSettings;
+        } elseif (!\is_array($options['allow_redirects'])) {
+            throw new \InvalidArgumentException('allow_redirects must be true, false, or array');
+        } else {
+            // Merge the default settings with the provided settings
+            $options['allow_redirects'] += self::$defaultSettings;
+        }
+
+        if (empty($options['allow_redirects']['max'])) {
+            return $fn($request, $options);
+        }
+
+        return $fn($request, $options)
+            ->then(function (ResponseInterface $response) use ($request, $options) {
+                return $this->checkRedirect($request, $options, $response);
+            });
+    }
+
+    /**
+     * @return ResponseInterface|PromiseInterface
+     */
+    public function checkRedirect(RequestInterface $request, array $options, ResponseInterface $response)
+    {
+        if (\strpos((string) $response->getStatusCode(), '3') !== 0
+            || !$response->hasHeader('Location')
+        ) {
+            return $response;
+        }
+
+        $this->guardMax($request, $response, $options);
+        $nextRequest = $this->modifyRequest($request, $options, $response);
+
+        if (isset($options['allow_redirects']['on_redirect'])) {
+            ($options['allow_redirects']['on_redirect'])(
+                $request,
+                $response,
+                $nextRequest->getUri()
+            );
+        }
+
+        $promise = $this($nextRequest, $options);
+
+        // Add headers to be able to track history of redirects.
+        if (!empty($options['allow_redirects']['track_redirects'])) {
+            return $this->withTracking(
+                $promise,
+                (string) $nextRequest->getUri(),
+                $response->getStatusCode()
+            );
+        }
+
+        return $promise;
+    }
+
+    /**
+     * Enable tracking on promise.
+     */
+    private function withTracking(PromiseInterface $promise, string $uri, int $statusCode): PromiseInterface
+    {
+        return $promise->then(
+            static function (ResponseInterface $response) use ($uri, $statusCode) {
+                // Note that we are pushing to the front of the list as this
+                // would be an earlier response than what is currently present
+                // in the history header.
+                $historyHeader = $response->getHeader(self::HISTORY_HEADER);
+                $statusHeader = $response->getHeader(self::STATUS_HISTORY_HEADER);
+                \array_unshift($historyHeader, $uri);
+                \array_unshift($statusHeader, (string) $statusCode);
+
+                return $response->withHeader(self::HISTORY_HEADER, $historyHeader)
+                                ->withHeader(self::STATUS_HISTORY_HEADER, $statusHeader);
+            }
+        );
+    }
+
+    /**
+     * Check for too many redirects
+     *
+     * @throws TooManyRedirectsException Too many redirects.
+     */
+    private function guardMax(RequestInterface $request, ResponseInterface $response, array &$options): void
+    {
+        $current = $options['__redirect_count']
+            ?? 0;
+        $options['__redirect_count'] = $current + 1;
+        $max = $options['allow_redirects']['max'];
+
+        if ($options['__redirect_count'] > $max) {
+            throw new TooManyRedirectsException("Will not follow more than {$max} redirects", $request, $response);
+        }
+    }
+
+    public function modifyRequest(RequestInterface $request, array $options, ResponseInterface $response): RequestInterface
+    {
+        // Request modifications to apply.
+        $modify = [];
+        $protocols = $options['allow_redirects']['protocols'];
+
+        // Use a GET request if this is an entity enclosing request and we are
+        // not forcing RFC compliance, but rather emulating what all browsers
+        // would do.
+        $statusCode = $response->getStatusCode();
+        if ($statusCode == 303 ||
+            ($statusCode <= 302 && !$options['allow_redirects']['strict'])
+        ) {
+            $safeMethods = ['GET', 'HEAD', 'OPTIONS'];
+            $requestMethod = $request->getMethod();
+
+            $modify['method'] = in_array($requestMethod, $safeMethods) ? $requestMethod : 'GET';
+            $modify['body'] = '';
+        }
+
+        $uri = $this->redirectUri($request, $response, $protocols);
+        if (isset($options['idn_conversion']) && ($options['idn_conversion'] !== false)) {
+            $idnOptions = ($options['idn_conversion'] === true) ? \IDNA_DEFAULT : $options['idn_conversion'];
+            $uri = Utils::idnUriConvert($uri, $idnOptions);
+        }
+
+        $modify['uri'] = $uri;
+        Psr7\Message::rewindBody($request);
+
+        // Add the Referer header if it is told to do so and only
+        // add the header if we are not redirecting from https to http.
+        if ($options['allow_redirects']['referer']
+            && $modify['uri']->getScheme() === $request->getUri()->getScheme()
+        ) {
+            $uri = $request->getUri()->withUserInfo('');
+            $modify['set_headers']['Referer'] = (string) $uri;
+        } else {
+            $modify['remove_headers'][] = 'Referer';
+        }
+
+        // Remove Authorization header if host is different.
+        if ($request->getUri()->getHost() !== $modify['uri']->getHost()) {
+            $modify['remove_headers'][] = 'Authorization';
+        }
+
+        return Psr7\Utils::modifyRequest($request, $modify);
+    }
+
+    /**
+     * Set the appropriate URL on the request based on the location header
+     */
+    private function redirectUri(RequestInterface $request, ResponseInterface $response, array $protocols): UriInterface
+    {
+        $location = Psr7\UriResolver::resolve(
+            $request->getUri(),
+            new Psr7\Uri($response->getHeaderLine('Location'))
+        );
+
+        // Ensure that the redirect URI is allowed based on the protocols.
+        if (!\in_array($location->getScheme(), $protocols)) {
+            throw new BadResponseException(\sprintf('Redirect URI, %s, does not use one of the allowed redirect protocols: %s', $location, \implode(', ', $protocols)), $request, $response);
+        }
+
+        return $location;
+    }
+}

vendor/guzzlehttp/guzzle/src/RequestOptions.php

@@ -0,0 +1,264 @@
+<?php
+
+namespace GuzzleHttp;
+
+/**
+ * This class contains a list of built-in Guzzle request options.
+ *
+ * More documentation for each option can be found at http://guzzlephp.org/.
+ *
+ * @link http://docs.guzzlephp.org/en/v6/request-options.html
+ */
+final class RequestOptions
+{
+    /**
+     * allow_redirects: (bool|array) Controls redirect behavior. Pass false
+     * to disable redirects, pass true to enable redirects, pass an
+     * associative to provide custom redirect settings. Defaults to "false".
+     * This option only works if your handler has the RedirectMiddleware. When
+     * passing an associative array, you can provide the following key value
+     * pairs:
+     *
+     * - max: (int, default=5) maximum number of allowed redirects.
+     * - strict: (bool, default=false) Set to true to use strict redirects
+     *   meaning redirect POST requests with POST requests vs. doing what most
+     *   browsers do which is redirect POST requests with GET requests
+     * - referer: (bool, default=false) Set to true to enable the Referer
+     *   header.
+     * - protocols: (array, default=['http', 'https']) Allowed redirect
+     *   protocols.
+     * - on_redirect: (callable) PHP callable that is invoked when a redirect
+     *   is encountered. The callable is invoked with the request, the redirect
+     *   response that was received, and the effective URI. Any return value
+     *   from the on_redirect function is ignored.
+     */
+    public const ALLOW_REDIRECTS = 'allow_redirects';
+
+    /**
+     * auth: (array) Pass an array of HTTP authentication parameters to use
+     * with the request. The array must contain the username in index [0],
+     * the password in index [1], and you can optionally provide a built-in
+     * authentication type in index [2]. Pass null to disable authentication
+     * for a request.
+     */
+    public const AUTH = 'auth';
+
+    /**
+     * body: (resource|string|null|int|float|StreamInterface|callable|\Iterator)
+     * Body to send in the request.
+     */
+    public const BODY = 'body';
+
+    /**
+     * cert: (string|array) Set to a string to specify the path to a file
+     * containing a PEM formatted SSL client side certificate. If a password
+     * is required, then set cert to an array containing the path to the PEM
+     * file in the first array element followed by the certificate password
+     * in the second array element.
+     */
+    public const CERT = 'cert';
+
+    /**
+     * cookies: (bool|GuzzleHttp\Cookie\CookieJarInterface, default=false)
+     * Specifies whether or not cookies are used in a request or what cookie
+     * jar to use or what cookies to send. This option only works if your
+     * handler has the `cookie` middleware. Valid values are `false` and
+     * an instance of {@see \GuzzleHttp\Cookie\CookieJarInterface}.
+     */
+    public const COOKIES = 'cookies';
+
+    /**
+     * connect_timeout: (float, default=0) Float describing the number of
+     * seconds to wait while trying to connect to a server. Use 0 to wait
+     * indefinitely (the default behavior).
+     */
+    public const CONNECT_TIMEOUT = 'connect_timeout';
+
+    /**
+     * debug: (bool|resource) Set to true or set to a PHP stream returned by
+     * fopen()  enable debug output with the HTTP handler used to send a
+     * request.
+     */
+    public const DEBUG = 'debug';
+
+    /**
+     * decode_content: (bool, default=true) Specify whether or not
+     * Content-Encoding responses (gzip, deflate, etc.) are automatically
+     * decoded.
+     */
+    public const DECODE_CONTENT = 'decode_content';
+
+    /**
+     * delay: (int) The amount of time to delay before sending in milliseconds.
+     */
+    public const DELAY = 'delay';
+
+    /**
+     * expect: (bool|integer) Controls the behavior of the
+     * "Expect: 100-Continue" header.
+     *
+     * Set to `true` to enable the "Expect: 100-Continue" header for all
+     * requests that sends a body. Set to `false` to disable the
+     * "Expect: 100-Continue" header for all requests. Set to a number so that
+     * the size of the payload must be greater than the number in order to send
+     * the Expect header. Setting to a number will send the Expect header for
+     * all requests in which the size of the payload cannot be determined or
+     * where the body is not rewindable.
+     *
+     * By default, Guzzle will add the "Expect: 100-Continue" header when the
+     * size of the body of a request is greater than 1 MB and a request is
+     * using HTTP/1.1.
+     */
+    public const EXPECT = 'expect';
+
+    /**
+     * form_params: (array) Associative array of form field names to values
+     * where each value is a string or array of strings. Sets the Content-Type
+     * header to application/x-www-form-urlencoded when no Content-Type header
+     * is already present.
+     */
+    public const FORM_PARAMS = 'form_params';
+
+    /**
+     * headers: (array) Associative array of HTTP headers. Each value MUST be
+     * a string or array of strings.
+     */
+    public const HEADERS = 'headers';
+
+    /**
+     * http_errors: (bool, default=true) Set to false to disable exceptions
+     * when a non- successful HTTP response is received. By default,
+     * exceptions will be thrown for 4xx and 5xx responses. This option only
+     * works if your handler has the `httpErrors` middleware.
+     */
+    public const HTTP_ERRORS = 'http_errors';
+
+    /**
+     * idn: (bool|int, default=true) A combination of IDNA_* constants for
+     * idn_to_ascii() PHP's function (see "options" parameter). Set to false to
+     * disable IDN support completely, or to true to use the default
+     * configuration (IDNA_DEFAULT constant).
+     */
+    public const IDN_CONVERSION = 'idn_conversion';
+
+    /**
+     * json: (mixed) Adds JSON data to a request. The provided value is JSON
+     * encoded and a Content-Type header of application/json will be added to
+     * the request if no Content-Type header is already present.
+     */
+    public const JSON = 'json';
+
+    /**
+     * multipart: (array) Array of associative arrays, each containing a
+     * required "name" key mapping to the form field, name, a required
+     * "contents" key mapping to a StreamInterface|resource|string, an
+     * optional "headers" associative array of custom headers, and an
+     * optional "filename" key mapping to a string to send as the filename in
+     * the part. If no "filename" key is present, then no "filename" attribute
+     * will be added to the part.
+     */
+    public const MULTIPART = 'multipart';
+
+    /**
+     * on_headers: (callable) A callable that is invoked when the HTTP headers
+     * of the response have been received but the body has not yet begun to
+     * download.
+     */
+    public const ON_HEADERS = 'on_headers';
+
+    /**
+     * on_stats: (callable) allows you to get access to transfer statistics of
+     * a request and access the lower level transfer details of the handler
+     * associated with your client. ``on_stats`` is a callable that is invoked
+     * when a handler has finished sending a request. The callback is invoked
+     * with transfer statistics about the request, the response received, or
+     * the error encountered. Included in the data is the total amount of time
+     * taken to send the request.
+     */
+    public const ON_STATS = 'on_stats';
+
+    /**
+     * progress: (callable) Defines a function to invoke when transfer
+     * progress is made. The function accepts the following positional
+     * arguments: the total number of bytes expected to be downloaded, the
+     * number of bytes downloaded so far, the number of bytes expected to be
+     * uploaded, the number of bytes uploaded so far.
+     */
+    public const PROGRESS = 'progress';
+
+    /**
+     * proxy: (string|array) Pass a string to specify an HTTP proxy, or an
+     * array to specify different proxies for different protocols (where the
+     * key is the protocol and the value is a proxy string).
+     */
+    public const PROXY = 'proxy';
+
+    /**
+     * query: (array|string) Associative array of query string values to add
+     * to the request. This option uses PHP's http_build_query() to create
+     * the string representation. Pass a string value if you need more
+     * control than what this method provides
+     */
+    public const QUERY = 'query';
+
+    /**
+     * sink: (resource|string|StreamInterface) Where the data of the
+     * response is written to. Defaults to a PHP temp stream. Providing a
+     * string will write data to a file by the given name.
+     */
+    public const SINK = 'sink';
+
+    /**
+     * synchronous: (bool) Set to true to inform HTTP handlers that you intend
+     * on waiting on the response. This can be useful for optimizations. Note
+     * that a promise is still returned if you are using one of the async
+     * client methods.
+     */
+    public const SYNCHRONOUS = 'synchronous';
+
+    /**
+     * ssl_key: (array|string) Specify the path to a file containing a private
+     * SSL key in PEM format. If a password is required, then set to an array
+     * containing the path to the SSL key in the first array element followed
+     * by the password required for the certificate in the second element.
+     */
+    public const SSL_KEY = 'ssl_key';
+
+    /**
+     * stream: Set to true to attempt to stream a response rather than
+     * download it all up-front.
+     */
+    public const STREAM = 'stream';
+
+    /**
+     * verify: (bool|string, default=true) Describes the SSL certificate
+     * verification behavior of a request. Set to true to enable SSL
+     * certificate verification using the system CA bundle when available
+     * (the default). Set to false to disable certificate verification (this
+     * is insecure!). Set to a string to provide the path to a CA bundle on
+     * disk to enable verification using a custom certificate.
+     */
+    public const VERIFY = 'verify';
+
+    /**
+     * timeout: (float, default=0) Float describing the timeout of the
+     * request in seconds. Use 0 to wait indefinitely (the default behavior).
+     */
+    public const TIMEOUT = 'timeout';
+
+    /**
+     * read_timeout: (float, default=default_socket_timeout ini setting) Float describing
+     * the body read timeout, for stream requests.
+     */
+    public const READ_TIMEOUT = 'read_timeout';
+
+    /**
+     * version: (float) Specifies the HTTP protocol version to attempt to use.
+     */
+    public const VERSION = 'version';
+
+    /**
+     * force_ip_resolve: (bool) Force client to use only ipv4 or ipv6 protocol
+     */
+    public const FORCE_IP_RESOLVE = 'force_ip_resolve';
+}

vendor/guzzlehttp/guzzle/src/RetryMiddleware.php

@@ -0,0 +1,116 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Middleware that retries requests based on the boolean result of
+ * invoking the provided "decider" function.
+ *
+ * @final
+ */
+class RetryMiddleware
+{
+    /**
+     * @var callable(RequestInterface, array): PromiseInterface
+     */
+    private $nextHandler;
+
+    /**
+     * @var callable
+     */
+    private $decider;
+
+    /**
+     * @var callable(int)
+     */
+    private $delay;
+
+    /**
+     * @param callable                                            $decider     Function that accepts the number of retries,
+     *                                                                         a request, [response], and [exception] and
+     *                                                                         returns true if the request is to be
+     *                                                                         retried.
+     * @param callable(RequestInterface, array): PromiseInterface $nextHandler Next handler to invoke.
+     * @param (callable(int): int)|null                           $delay       Function that accepts the number of retries
+     *                                                                         and returns the number of
+     *                                                                         milliseconds to delay.
+     */
+    public function __construct(callable $decider, callable $nextHandler, callable $delay = null)
+    {
+        $this->decider = $decider;
+        $this->nextHandler = $nextHandler;
+        $this->delay = $delay ?: __CLASS__ . '::exponentialDelay';
+    }
+
+    /**
+     * Default exponential backoff delay function.
+     *
+     * @return int milliseconds.
+     */
+    public static function exponentialDelay(int $retries): int
+    {
+        return (int) \pow(2, $retries - 1) * 1000;
+    }
+
+    public function __invoke(RequestInterface $request, array $options): PromiseInterface
+    {
+        if (!isset($options['retries'])) {
+            $options['retries'] = 0;
+        }
+
+        $fn = $this->nextHandler;
+        return $fn($request, $options)
+            ->then(
+                $this->onFulfilled($request, $options),
+                $this->onRejected($request, $options)
+            );
+    }
+
+    /**
+     * Execute fulfilled closure
+     */
+    private function onFulfilled(RequestInterface $request, array $options): callable
+    {
+        return function ($value) use ($request, $options) {
+            if (!($this->decider)(
+                $options['retries'],
+                $request,
+                $value,
+                null
+            )) {
+                return $value;
+            }
+            return $this->doRetry($request, $options, $value);
+        };
+    }
+
+    /**
+     * Execute rejected closure
+     */
+    private function onRejected(RequestInterface $req, array $options): callable
+    {
+        return function ($reason) use ($req, $options) {
+            if (!($this->decider)(
+                $options['retries'],
+                $req,
+                null,
+                $reason
+            )) {
+                return P\Create::rejectionFor($reason);
+            }
+            return $this->doRetry($req, $options);
+        };
+    }
+
+    private function doRetry(RequestInterface $request, array $options, ResponseInterface $response = null): PromiseInterface
+    {
+        $options['delay'] = ($this->delay)(++$options['retries'], $response);
+
+        return $this($request, $options);
+    }
+}

vendor/guzzlehttp/guzzle/src/TransferStats.php

@@ -0,0 +1,133 @@
+<?php
+
+namespace GuzzleHttp;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Represents data at the point after it was transferred either successfully
+ * or after a network error.
+ */
+final class TransferStats
+{
+    /**
+     * @var RequestInterface
+     */
+    private $request;
+
+    /**
+     * @var ResponseInterface|null
+     */
+    private $response;
+
+    /**
+     * @var float|null
+     */
+    private $transferTime;
+
+    /**
+     * @var array
+     */
+    private $handlerStats;
+
+    /**
+     * @var mixed|null
+     */
+    private $handlerErrorData;
+
+    /**
+     * @param RequestInterface       $request          Request that was sent.
+     * @param ResponseInterface|null $response         Response received (if any)
+     * @param float|null             $transferTime     Total handler transfer time.
+     * @param mixed                  $handlerErrorData Handler error data.
+     * @param array                  $handlerStats     Handler specific stats.
+     */
+    public function __construct(
+        RequestInterface $request,
+        ?ResponseInterface $response = null,
+        ?float $transferTime = null,
+        $handlerErrorData = null,
+        array $handlerStats = []
+    ) {
+        $this->request = $request;
+        $this->response = $response;
+        $this->transferTime = $transferTime;
+        $this->handlerErrorData = $handlerErrorData;
+        $this->handlerStats = $handlerStats;
+    }
+
+    public function getRequest(): RequestInterface
+    {
+        return $this->request;
+    }
+
+    /**
+     * Returns the response that was received (if any).
+     */
+    public function getResponse(): ?ResponseInterface
+    {
+        return $this->response;
+    }
+
+    /**
+     * Returns true if a response was received.
+     */
+    public function hasResponse(): bool
+    {
+        return $this->response !== null;
+    }
+
+    /**
+     * Gets handler specific error data.
+     *
+     * This might be an exception, a integer representing an error code, or
+     * anything else. Relying on this value assumes that you know what handler
+     * you are using.
+     *
+     * @return mixed
+     */
+    public function getHandlerErrorData()
+    {
+        return $this->handlerErrorData;
+    }
+
+    /**
+     * Get the effective URI the request was sent to.
+     */
+    public function getEffectiveUri(): UriInterface
+    {
+        return $this->request->getUri();
+    }
+
+    /**
+     * Get the estimated time the request was being transferred by the handler.
+     *
+     * @return float|null Time in seconds.
+     */
+    public function getTransferTime(): ?float
+    {
+        return $this->transferTime;
+    }
+
+    /**
+     * Gets an array of all of the handler specific transfer data.
+     */
+    public function getHandlerStats(): array
+    {
+        return $this->handlerStats;
+    }
+
+    /**
+     * Get a specific handler statistic from the handler by name.
+     *
+     * @param string $stat Handler specific transfer stat to retrieve.
+     *
+     * @return mixed|null
+     */
+    public function getHandlerStat(string $stat)
+    {
+        return $this->handlerStats[$stat] ?? null;
+    }
+}

vendor/guzzlehttp/guzzle/src/Utils.php

@@ -0,0 +1,382 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Exception\InvalidArgumentException;
+use GuzzleHttp\Handler\CurlHandler;
+use GuzzleHttp\Handler\CurlMultiHandler;
+use GuzzleHttp\Handler\Proxy;
+use GuzzleHttp\Handler\StreamHandler;
+use Psr\Http\Message\UriInterface;
+
+final class Utils
+{
+    /**
+     * Debug function used to describe the provided value type and class.
+     *
+     * @param mixed $input
+     *
+     * @return string Returns a string containing the type of the variable and
+     *                if a class is provided, the class name.
+     */
+    public static function describeType($input): string
+    {
+        switch (\gettype($input)) {
+            case 'object':
+                return 'object(' . \get_class($input) . ')';
+            case 'array':
+                return 'array(' . \count($input) . ')';
+            default:
+                \ob_start();
+                \var_dump($input);
+                // normalize float vs double
+                /** @var string $varDumpContent */
+                $varDumpContent = \ob_get_clean();
+
+                return \str_replace('double(', 'float(', \rtrim($varDumpContent));
+        }
+    }
+
+    /**
+     * Parses an array of header lines into an associative array of headers.
+     *
+     * @param iterable $lines Header lines array of strings in the following
+     *                        format: "Name: Value"
+     */
+    public static function headersFromLines(iterable $lines): array
+    {
+        $headers = [];
+
+        foreach ($lines as $line) {
+            $parts = \explode(':', $line, 2);
+            $headers[\trim($parts[0])][] = isset($parts[1]) ? \trim($parts[1]) : null;
+        }
+
+        return $headers;
+    }
+
+    /**
+     * Returns a debug stream based on the provided variable.
+     *
+     * @param mixed $value Optional value
+     *
+     * @return resource
+     */
+    public static function debugResource($value = null)
+    {
+        if (\is_resource($value)) {
+            return $value;
+        }
+        if (\defined('STDOUT')) {
+            return \STDOUT;
+        }
+
+        return \GuzzleHttp\Psr7\Utils::tryFopen('php://output', 'w');
+    }
+
+    /**
+     * Chooses and creates a default handler to use based on the environment.
+     *
+     * The returned handler is not wrapped by any default middlewares.
+     *
+     * @throws \RuntimeException if no viable Handler is available.
+     *
+     * @return callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface Returns the best handler for the given system.
+     */
+    public static function chooseHandler(): callable
+    {
+        $handler = null;
+        if (\function_exists('curl_multi_exec') && \function_exists('curl_exec')) {
+            $handler = Proxy::wrapSync(new CurlMultiHandler(), new CurlHandler());
+        } elseif (\function_exists('curl_exec')) {
+            $handler = new CurlHandler();
+        } elseif (\function_exists('curl_multi_exec')) {
+            $handler = new CurlMultiHandler();
+        }
+
+        if (\ini_get('allow_url_fopen')) {
+            $handler = $handler
+                ? Proxy::wrapStreaming($handler, new StreamHandler())
+                : new StreamHandler();
+        } elseif (!$handler) {
+            throw new \RuntimeException('GuzzleHttp requires cURL, the allow_url_fopen ini setting, or a custom HTTP handler.');
+        }
+
+        return $handler;
+    }
+
+    /**
+     * Get the default User-Agent string to use with Guzzle.
+     */
+    public static function defaultUserAgent(): string
+    {
+        return sprintf('GuzzleHttp/%d', ClientInterface::MAJOR_VERSION);
+    }
+
+    /**
+     * Returns the default cacert bundle for the current system.
+     *
+     * First, the openssl.cafile and curl.cainfo php.ini settings are checked.
+     * If those settings are not configured, then the common locations for
+     * bundles found on Red Hat, CentOS, Fedora, Ubuntu, Debian, FreeBSD, OS X
+     * and Windows are checked. If any of these file locations are found on
+     * disk, they will be utilized.
+     *
+     * Note: the result of this function is cached for subsequent calls.
+     *
+     * @throws \RuntimeException if no bundle can be found.
+     *
+     * @deprecated Utils::defaultCaBundle will be removed in guzzlehttp/guzzle:8.0. This method is not needed in PHP 5.6+.
+     */
+    public static function defaultCaBundle(): string
+    {
+        static $cached = null;
+        static $cafiles = [
+            // Red Hat, CentOS, Fedora (provided by the ca-certificates package)
+            '/etc/pki/tls/certs/ca-bundle.crt',
+            // Ubuntu, Debian (provided by the ca-certificates package)
+            '/etc/ssl/certs/ca-certificates.crt',
+            // FreeBSD (provided by the ca_root_nss package)
+            '/usr/local/share/certs/ca-root-nss.crt',
+            // SLES 12 (provided by the ca-certificates package)
+            '/var/lib/ca-certificates/ca-bundle.pem',
+            // OS X provided by homebrew (using the default path)
+            '/usr/local/etc/openssl/cert.pem',
+            // Google app engine
+            '/etc/ca-certificates.crt',
+            // Windows?
+            'C:\\windows\\system32\\curl-ca-bundle.crt',
+            'C:\\windows\\curl-ca-bundle.crt',
+        ];
+
+        if ($cached) {
+            return $cached;
+        }
+
+        if ($ca = \ini_get('openssl.cafile')) {
+            return $cached = $ca;
+        }
+
+        if ($ca = \ini_get('curl.cainfo')) {
+            return $cached = $ca;
+        }
+
+        foreach ($cafiles as $filename) {
+            if (\file_exists($filename)) {
+                return $cached = $filename;
+            }
+        }
+
+        throw new \RuntimeException(
+            <<< EOT
+No system CA bundle could be found in any of the the common system locations.
+PHP versions earlier than 5.6 are not properly configured to use the system's
+CA bundle by default. In order to verify peer certificates, you will need to
+supply the path on disk to a certificate bundle to the 'verify' request
+option: http://docs.guzzlephp.org/en/latest/clients.html#verify. If you do not
+need a specific certificate bundle, then Mozilla provides a commonly used CA
+bundle which can be downloaded here (provided by the maintainer of cURL):
+https://curl.haxx.se/ca/cacert.pem. Once
+you have a CA bundle available on disk, you can set the 'openssl.cafile' PHP
+ini setting to point to the path to the file, allowing you to omit the 'verify'
+request option. See https://curl.haxx.se/docs/sslcerts.html for more
+information.
+EOT
+        );
+    }
+
+    /**
+     * Creates an associative array of lowercase header names to the actual
+     * header casing.
+     */
+    public static function normalizeHeaderKeys(array $headers): array
+    {
+        $result = [];
+        foreach (\array_keys($headers) as $key) {
+            $result[\strtolower($key)] = $key;
+        }
+
+        return $result;
+    }
+
+    /**
+     * Returns true if the provided host matches any of the no proxy areas.
+     *
+     * This method will strip a port from the host if it is present. Each pattern
+     * can be matched with an exact match (e.g., "foo.com" == "foo.com") or a
+     * partial match: (e.g., "foo.com" == "baz.foo.com" and ".foo.com" ==
+     * "baz.foo.com", but ".foo.com" != "foo.com").
+     *
+     * Areas are matched in the following cases:
+     * 1. "*" (without quotes) always matches any hosts.
+     * 2. An exact match.
+     * 3. The area starts with "." and the area is the last part of the host. e.g.
+     *    '.mit.edu' will match any host that ends with '.mit.edu'.
+     *
+     * @param string   $host         Host to check against the patterns.
+     * @param string[] $noProxyArray An array of host patterns.
+     *
+     * @throws InvalidArgumentException
+     */
+    public static function isHostInNoProxy(string $host, array $noProxyArray): bool
+    {
+        if (\strlen($host) === 0) {
+            throw new InvalidArgumentException('Empty host provided');
+        }
+
+        // Strip port if present.
+        [$host] = \explode(':', $host, 2);
+
+        foreach ($noProxyArray as $area) {
+            // Always match on wildcards.
+            if ($area === '*') {
+                return true;
+            }
+
+            if (empty($area)) {
+                // Don't match on empty values.
+                continue;
+            }
+
+            if ($area === $host) {
+                // Exact matches.
+                return true;
+            }
+            // Special match if the area when prefixed with ".". Remove any
+            // existing leading "." and add a new leading ".".
+            $area = '.' . \ltrim($area, '.');
+            if (\substr($host, -(\strlen($area))) === $area) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Wrapper for json_decode that throws when an error occurs.
+     *
+     * @param string $json    JSON data to parse
+     * @param bool   $assoc   When true, returned objects will be converted
+     *                        into associative arrays.
+     * @param int    $depth   User specified recursion depth.
+     * @param int    $options Bitmask of JSON decode options.
+     *
+     * @return object|array|string|int|float|bool|null
+     *
+     * @throws InvalidArgumentException if the JSON cannot be decoded.
+     *
+     * @link https://www.php.net/manual/en/function.json-decode.php
+     */
+    public static function jsonDecode(string $json, bool $assoc = false, int $depth = 512, int $options = 0)
+    {
+        $data = \json_decode($json, $assoc, $depth, $options);
+        if (\JSON_ERROR_NONE !== \json_last_error()) {
+            throw new InvalidArgumentException('json_decode error: ' . \json_last_error_msg());
+        }
+
+        return $data;
+    }
+
+    /**
+     * Wrapper for JSON encoding that throws when an error occurs.
+     *
+     * @param mixed $value   The value being encoded
+     * @param int   $options JSON encode option bitmask
+     * @param int   $depth   Set the maximum depth. Must be greater than zero.
+     *
+     * @throws InvalidArgumentException if the JSON cannot be encoded.
+     *
+     * @link https://www.php.net/manual/en/function.json-encode.php
+     */
+    public static function jsonEncode($value, int $options = 0, int $depth = 512): string
+    {
+        $json = \json_encode($value, $options, $depth);
+        if (\JSON_ERROR_NONE !== \json_last_error()) {
+            throw new InvalidArgumentException('json_encode error: ' . \json_last_error_msg());
+        }
+
+        /** @var string */
+        return $json;
+    }
+
+    /**
+     * Wrapper for the hrtime() or microtime() functions
+     * (depending on the PHP version, one of the two is used)
+     *
+     * @return float UNIX timestamp
+     *
+     * @internal
+     */
+    public static function currentTime(): float
+    {
+        return (float) \function_exists('hrtime') ? \hrtime(true) / 1e9 : \microtime(true);
+    }
+
+    /**
+     * @throws InvalidArgumentException
+     *
+     * @internal
+     */
+    public static function idnUriConvert(UriInterface $uri, int $options = 0): UriInterface
+    {
+        if ($uri->getHost()) {
+            $asciiHost = self::idnToAsci($uri->getHost(), $options, $info);
+            if ($asciiHost === false) {
+                $errorBitSet = $info['errors'] ?? 0;
+
+                $errorConstants = array_filter(array_keys(get_defined_constants()), static function (string $name): bool {
+                    return substr($name, 0, 11) === 'IDNA_ERROR_';
+                });
+
+                $errors = [];
+                foreach ($errorConstants as $errorConstant) {
+                    if ($errorBitSet & constant($errorConstant)) {
+                        $errors[] = $errorConstant;
+                    }
+                }
+
+                $errorMessage = 'IDN conversion failed';
+                if ($errors) {
+                    $errorMessage .= ' (errors: ' . implode(', ', $errors) . ')';
+                }
+
+                throw new InvalidArgumentException($errorMessage);
+            }
+            if ($uri->getHost() !== $asciiHost) {
+                // Replace URI only if the ASCII version is different
+                $uri = $uri->withHost($asciiHost);
+            }
+        }
+
+        return $uri;
+    }
+
+    /**
+     * @internal
+     */
+    public static function getenv(string $name): ?string
+    {
+        if (isset($_SERVER[$name])) {
+            return (string) $_SERVER[$name];
+        }
+
+        if (\PHP_SAPI === 'cli' && ($value = \getenv($name)) !== false && $value !== null) {
+            return (string) $value;
+        }
+
+        return null;
+    }
+
+    /**
+     * @return string|false
+     */
+    private static function idnToAsci(string $domain, int $options, ?array &$info = [])
+    {
+        if (\function_exists('idn_to_ascii') && \defined('INTL_IDNA_VARIANT_UTS46')) {
+            return \idn_to_ascii($domain, $options, \INTL_IDNA_VARIANT_UTS46, $info);
+        }
+
+        throw new \Error('ext-idn or symfony/polyfill-intl-idn not loaded or too old');
+    }
+}

vendor/guzzlehttp/guzzle/src/functions.php

@@ -0,0 +1,167 @@
+<?php
+
+namespace GuzzleHttp;
+
+/**
+ * Debug function used to describe the provided value type and class.
+ *
+ * @param mixed $input Any type of variable to describe the type of. This
+ *                     parameter misses a typehint because of that.
+ *
+ * @return string Returns a string containing the type of the variable and
+ *                if a class is provided, the class name.
+ *
+ * @deprecated describe_type will be removed in guzzlehttp/guzzle:8.0. Use Utils::describeType instead.
+ */
+function describe_type($input): string
+{
+    return Utils::describeType($input);
+}
+
+/**
+ * Parses an array of header lines into an associative array of headers.
+ *
+ * @param iterable $lines Header lines array of strings in the following
+ *                        format: "Name: Value"
+ *
+ * @deprecated headers_from_lines will be removed in guzzlehttp/guzzle:8.0. Use Utils::headersFromLines instead.
+ */
+function headers_from_lines(iterable $lines): array
+{
+    return Utils::headersFromLines($lines);
+}
+
+/**
+ * Returns a debug stream based on the provided variable.
+ *
+ * @param mixed $value Optional value
+ *
+ * @return resource
+ *
+ * @deprecated debug_resource will be removed in guzzlehttp/guzzle:8.0. Use Utils::debugResource instead.
+ */
+function debug_resource($value = null)
+{
+    return Utils::debugResource($value);
+}
+
+/**
+ * Chooses and creates a default handler to use based on the environment.
+ *
+ * The returned handler is not wrapped by any default middlewares.
+ *
+ * @throws \RuntimeException if no viable Handler is available.
+ *
+ * @return callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface Returns the best handler for the given system.
+ *
+ * @deprecated choose_handler will be removed in guzzlehttp/guzzle:8.0. Use Utils::chooseHandler instead.
+ */
+function choose_handler(): callable
+{
+    return Utils::chooseHandler();
+}
+
+/**
+ * Get the default User-Agent string to use with Guzzle.
+ *
+ * @deprecated default_user_agent will be removed in guzzlehttp/guzzle:8.0. Use Utils::defaultUserAgent instead.
+ */
+function default_user_agent(): string
+{
+    return Utils::defaultUserAgent();
+}
+
+/**
+ * Returns the default cacert bundle for the current system.
+ *
+ * First, the openssl.cafile and curl.cainfo php.ini settings are checked.
+ * If those settings are not configured, then the common locations for
+ * bundles found on Red Hat, CentOS, Fedora, Ubuntu, Debian, FreeBSD, OS X
+ * and Windows are checked. If any of these file locations are found on
+ * disk, they will be utilized.
+ *
+ * Note: the result of this function is cached for subsequent calls.
+ *
+ * @throws \RuntimeException if no bundle can be found.
+ *
+ * @deprecated default_ca_bundle will be removed in guzzlehttp/guzzle:8.0. This function is not needed in PHP 5.6+.
+ */
+function default_ca_bundle(): string
+{
+    return Utils::defaultCaBundle();
+}
+
+/**
+ * Creates an associative array of lowercase header names to the actual
+ * header casing.
+ *
+ * @deprecated normalize_header_keys will be removed in guzzlehttp/guzzle:8.0. Use Utils::normalizeHeaderKeys instead.
+ */
+function normalize_header_keys(array $headers): array
+{
+    return Utils::normalizeHeaderKeys($headers);
+}
+
+/**
+ * Returns true if the provided host matches any of the no proxy areas.
+ *
+ * This method will strip a port from the host if it is present. Each pattern
+ * can be matched with an exact match (e.g., "foo.com" == "foo.com") or a
+ * partial match: (e.g., "foo.com" == "baz.foo.com" and ".foo.com" ==
+ * "baz.foo.com", but ".foo.com" != "foo.com").
+ *
+ * Areas are matched in the following cases:
+ * 1. "*" (without quotes) always matches any hosts.
+ * 2. An exact match.
+ * 3. The area starts with "." and the area is the last part of the host. e.g.
+ *    '.mit.edu' will match any host that ends with '.mit.edu'.
+ *
+ * @param string   $host         Host to check against the patterns.
+ * @param string[] $noProxyArray An array of host patterns.
+ *
+ * @throws Exception\InvalidArgumentException
+ *
+ * @deprecated is_host_in_noproxy will be removed in guzzlehttp/guzzle:8.0. Use Utils::isHostInNoProxy instead.
+ */
+function is_host_in_noproxy(string $host, array $noProxyArray): bool
+{
+    return Utils::isHostInNoProxy($host, $noProxyArray);
+}
+
+/**
+ * Wrapper for json_decode that throws when an error occurs.
+ *
+ * @param string $json    JSON data to parse
+ * @param bool   $assoc   When true, returned objects will be converted
+ *                        into associative arrays.
+ * @param int    $depth   User specified recursion depth.
+ * @param int    $options Bitmask of JSON decode options.
+ *
+ * @return object|array|string|int|float|bool|null
+ *
+ * @throws Exception\InvalidArgumentException if the JSON cannot be decoded.
+ *
+ * @link https://www.php.net/manual/en/function.json-decode.php
+ * @deprecated json_decode will be removed in guzzlehttp/guzzle:8.0. Use Utils::jsonDecode instead.
+ */
+function json_decode(string $json, bool $assoc = false, int $depth = 512, int $options = 0)
+{
+    return Utils::jsonDecode($json, $assoc, $depth, $options);
+}
+
+/**
+ * Wrapper for JSON encoding that throws when an error occurs.
+ *
+ * @param mixed $value   The value being encoded
+ * @param int   $options JSON encode option bitmask
+ * @param int   $depth   Set the maximum depth. Must be greater than zero.
+ *
+ * @throws Exception\InvalidArgumentException if the JSON cannot be encoded.
+ *
+ * @link https://www.php.net/manual/en/function.json-encode.php
+ * @deprecated json_encode will be removed in guzzlehttp/guzzle:8.0. Use Utils::jsonEncode instead.
+ */
+function json_encode($value, int $options = 0, int $depth = 512): string
+{
+    return Utils::jsonEncode($value, $options, $depth);
+}

vendor/guzzlehttp/guzzle/src/functions_include.php

@@ -0,0 +1,6 @@
+<?php
+
+// Don't redefine the functions if included multiple times.
+if (!\function_exists('GuzzleHttp\describe_type')) {
+    require __DIR__ . '/functions.php';
+}

vendor/guzzlehttp/promises/CHANGELOG.md

@@ -0,0 +1,103 @@
+# CHANGELOG
+
+## 1.5.1 - 2021-10-22
+
+### Fixed
+
+- Revert "Call handler when waiting on fulfilled/rejected Promise"
+- Fix pool memory leak when empty array of promises provided
+
+## 1.5.0 - 2021-10-07
+
+### Changed
+
+- Call handler when waiting on fulfilled/rejected Promise
+
+### Fixed
+
+- Fix manually settle promises generated with Utils::task
+
+## 1.4.1 - 2021-02-18
+
+### Fixed
+
+- Fixed `each_limit` skipping promises and failing
+
+## 1.4.0 - 2020-09-30
+
+### Added
+
+- Support for PHP 8
+- Optional `$recursive` flag to `all`
+- Replaced functions by static methods
+
+### Fixed
+
+- Fix empty `each` processing
+- Fix promise handling for Iterators of non-unique keys
+- Fixed `method_exists` crashes on PHP 8
+- Memory leak on exceptions
+
+
+## 1.3.1 - 2016-12-20
+
+### Fixed
+
+- `wait()` foreign promise compatibility
+
+
+## 1.3.0 - 2016-11-18
+
+### Added
+
+- Adds support for custom task queues.
+
+### Fixed
+
+- Fixed coroutine promise memory leak.
+
+
+## 1.2.0 - 2016-05-18
+
+### Changed
+
+- Update to now catch `\Throwable` on PHP 7+
+
+
+## 1.1.0 - 2016-03-07
+
+### Changed
+
+- Update EachPromise to prevent recurring on a iterator when advancing, as this
+  could trigger fatal generator errors.
+- Update Promise to allow recursive waiting without unwrapping exceptions.
+
+
+## 1.0.3 - 2015-10-15
+
+### Changed
+
+- Update EachPromise to immediately resolve when the underlying promise iterator
+  is empty. Previously, such a promise would throw an exception when its `wait`
+  function was called.
+
+
+## 1.0.2 - 2015-05-15
+
+### Changed
+
+- Conditionally require functions.php.
+
+
+## 1.0.1 - 2015-06-24
+
+### Changed
+
+- Updating EachPromise to call next on the underlying promise iterator as late
+  as possible to ensure that generators that generate new requests based on
+  callbacks are not iterated until after callbacks are invoked.
+
+
+## 1.0.0 - 2015-05-12
+
+- Initial release

vendor/guzzlehttp/promises/LICENSE

@@ -0,0 +1,24 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Michael Dowling <mtdowling@gmail.com>
+Copyright (c) 2015 Graham Campbell <hello@gjcampbell.co.uk>
+Copyright (c) 2017 Tobias Schultze <webmaster@tubo-world.de>
+Copyright (c) 2020 Tobias Nyholm <tobias.nyholm@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/guzzlehttp/promises/Makefile

@@ -0,0 +1,13 @@
+all: clean test
+
+test:
+	vendor/bin/phpunit
+
+coverage:
+	vendor/bin/phpunit --coverage-html=artifacts/coverage
+
+view-coverage:
+	open artifacts/coverage/index.html
+
+clean:
+	rm -rf artifacts/*

vendor/guzzlehttp/promises/README.md

@@ -0,0 +1,547 @@
+# Guzzle Promises
+
+[Promises/A+](https://promisesaplus.com/) implementation that handles promise
+chaining and resolution iteratively, allowing for "infinite" promise chaining
+while keeping the stack size constant. Read [this blog post](https://blog.domenic.me/youre-missing-the-point-of-promises/)
+for a general introduction to promises.
+
+- [Features](#features)
+- [Quick start](#quick-start)
+- [Synchronous wait](#synchronous-wait)
+- [Cancellation](#cancellation)
+- [API](#api)
+  - [Promise](#promise)
+  - [FulfilledPromise](#fulfilledpromise)
+  - [RejectedPromise](#rejectedpromise)
+- [Promise interop](#promise-interop)
+- [Implementation notes](#implementation-notes)
+
+
+# Features
+
+- [Promises/A+](https://promisesaplus.com/) implementation.
+- Promise resolution and chaining is handled iteratively, allowing for
+  "infinite" promise chaining.
+- Promises have a synchronous `wait` method.
+- Promises can be cancelled.
+- Works with any object that has a `then` function.
+- C# style async/await coroutine promises using
+  `GuzzleHttp\Promise\Coroutine::of()`.
+
+
+# Quick start
+
+A *promise* represents the eventual result of an asynchronous operation. The
+primary way of interacting with a promise is through its `then` method, which
+registers callbacks to receive either a promise's eventual value or the reason
+why the promise cannot be fulfilled.
+
+
+## Callbacks
+
+Callbacks are registered with the `then` method by providing an optional 
+`$onFulfilled` followed by an optional `$onRejected` function.
+
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise->then(
+    // $onFulfilled
+    function ($value) {
+        echo 'The promise was fulfilled.';
+    },
+    // $onRejected
+    function ($reason) {
+        echo 'The promise was rejected.';
+    }
+);
+```
+
+*Resolving* a promise means that you either fulfill a promise with a *value* or
+reject a promise with a *reason*. Resolving a promises triggers callbacks
+registered with the promises's `then` method. These callbacks are triggered
+only once and in the order in which they were added.
+
+
+## Resolving a promise
+
+Promises are fulfilled using the `resolve($value)` method. Resolving a promise
+with any value other than a `GuzzleHttp\Promise\RejectedPromise` will trigger
+all of the onFulfilled callbacks (resolving a promise with a rejected promise
+will reject the promise and trigger the `$onRejected` callbacks).
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise
+    ->then(function ($value) {
+        // Return a value and don't break the chain
+        return "Hello, " . $value;
+    })
+    // This then is executed after the first then and receives the value
+    // returned from the first then.
+    ->then(function ($value) {
+        echo $value;
+    });
+
+// Resolving the promise triggers the $onFulfilled callbacks and outputs
+// "Hello, reader."
+$promise->resolve('reader.');
+```
+
+
+## Promise forwarding
+
+Promises can be chained one after the other. Each then in the chain is a new
+promise. The return value of a promise is what's forwarded to the next
+promise in the chain. Returning a promise in a `then` callback will cause the
+subsequent promises in the chain to only be fulfilled when the returned promise
+has been fulfilled. The next promise in the chain will be invoked with the
+resolved value of the promise.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$nextPromise = new Promise();
+
+$promise
+    ->then(function ($value) use ($nextPromise) {
+        echo $value;
+        return $nextPromise;
+    })
+    ->then(function ($value) {
+        echo $value;
+    });
+
+// Triggers the first callback and outputs "A"
+$promise->resolve('A');
+// Triggers the second callback and outputs "B"
+$nextPromise->resolve('B');
+```
+
+## Promise rejection
+
+When a promise is rejected, the `$onRejected` callbacks are invoked with the
+rejection reason.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise->then(null, function ($reason) {
+    echo $reason;
+});
+
+$promise->reject('Error!');
+// Outputs "Error!"
+```
+
+## Rejection forwarding
+
+If an exception is thrown in an `$onRejected` callback, subsequent
+`$onRejected` callbacks are invoked with the thrown exception as the reason.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise->then(null, function ($reason) {
+    throw new Exception($reason);
+})->then(null, function ($reason) {
+    assert($reason->getMessage() === 'Error!');
+});
+
+$promise->reject('Error!');
+```
+
+You can also forward a rejection down the promise chain by returning a
+`GuzzleHttp\Promise\RejectedPromise` in either an `$onFulfilled` or
+`$onRejected` callback.
+
+```php
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\RejectedPromise;
+
+$promise = new Promise();
+$promise->then(null, function ($reason) {
+    return new RejectedPromise($reason);
+})->then(null, function ($reason) {
+    assert($reason === 'Error!');
+});
+
+$promise->reject('Error!');
+```
+
+If an exception is not thrown in a `$onRejected` callback and the callback
+does not return a rejected promise, downstream `$onFulfilled` callbacks are
+invoked using the value returned from the `$onRejected` callback.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise
+    ->then(null, function ($reason) {
+        return "It's ok";
+    })
+    ->then(function ($value) {
+        assert($value === "It's ok");
+    });
+
+$promise->reject('Error!');
+```
+
+# Synchronous wait
+
+You can synchronously force promises to complete using a promise's `wait`
+method. When creating a promise, you can provide a wait function that is used
+to synchronously force a promise to complete. When a wait function is invoked
+it is expected to deliver a value to the promise or reject the promise. If the
+wait function does not deliver a value, then an exception is thrown. The wait
+function provided to a promise constructor is invoked when the `wait` function
+of the promise is called.
+
+```php
+$promise = new Promise(function () use (&$promise) {
+    $promise->resolve('foo');
+});
+
+// Calling wait will return the value of the promise.
+echo $promise->wait(); // outputs "foo"
+```
+
+If an exception is encountered while invoking the wait function of a promise,
+the promise is rejected with the exception and the exception is thrown.
+
+```php
+$promise = new Promise(function () use (&$promise) {
+    throw new Exception('foo');
+});
+
+$promise->wait(); // throws the exception.
+```
+
+Calling `wait` on a promise that has been fulfilled will not trigger the wait
+function. It will simply return the previously resolved value.
+
+```php
+$promise = new Promise(function () { die('this is not called!'); });
+$promise->resolve('foo');
+echo $promise->wait(); // outputs "foo"
+```
+
+Calling `wait` on a promise that has been rejected will throw an exception. If
+the rejection reason is an instance of `\Exception` the reason is thrown.
+Otherwise, a `GuzzleHttp\Promise\RejectionException` is thrown and the reason
+can be obtained by calling the `getReason` method of the exception.
+
+```php
+$promise = new Promise();
+$promise->reject('foo');
+$promise->wait();
+```
+
+> PHP Fatal error:  Uncaught exception 'GuzzleHttp\Promise\RejectionException' with message 'The promise was rejected with value: foo'
+
+
+## Unwrapping a promise
+
+When synchronously waiting on a promise, you are joining the state of the
+promise into the current state of execution (i.e., return the value of the
+promise if it was fulfilled or throw an exception if it was rejected). This is
+called "unwrapping" the promise. Waiting on a promise will by default unwrap
+the promise state.
+
+You can force a promise to resolve and *not* unwrap the state of the promise
+by passing `false` to the first argument of the `wait` function:
+
+```php
+$promise = new Promise();
+$promise->reject('foo');
+// This will not throw an exception. It simply ensures the promise has
+// been resolved.
+$promise->wait(false);
+```
+
+When unwrapping a promise, the resolved value of the promise will be waited
+upon until the unwrapped value is not a promise. This means that if you resolve
+promise A with a promise B and unwrap promise A, the value returned by the
+wait function will be the value delivered to promise B.
+
+**Note**: when you do not unwrap the promise, no value is returned.
+
+
+# Cancellation
+
+You can cancel a promise that has not yet been fulfilled using the `cancel()`
+method of a promise. When creating a promise you can provide an optional
+cancel function that when invoked cancels the action of computing a resolution
+of the promise.
+
+
+# API
+
+
+## Promise
+
+When creating a promise object, you can provide an optional `$waitFn` and
+`$cancelFn`. `$waitFn` is a function that is invoked with no arguments and is
+expected to resolve the promise. `$cancelFn` is a function with no arguments
+that is expected to cancel the computation of a promise. It is invoked when the
+`cancel()` method of a promise is called.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise(
+    function () use (&$promise) {
+        $promise->resolve('waited');
+    },
+    function () {
+        // do something that will cancel the promise computation (e.g., close
+        // a socket, cancel a database query, etc...)
+    }
+);
+
+assert('waited' === $promise->wait());
+```
+
+A promise has the following methods:
+
+- `then(callable $onFulfilled, callable $onRejected) : PromiseInterface`
+  
+  Appends fulfillment and rejection handlers to the promise, and returns a new promise resolving to the return value of the called handler.
+
+- `otherwise(callable $onRejected) : PromiseInterface`
+  
+  Appends a rejection handler callback to the promise, and returns a new promise resolving to the return value of the callback if it is called, or to its original fulfillment value if the promise is instead fulfilled.
+
+- `wait($unwrap = true) : mixed`
+
+  Synchronously waits on the promise to complete.
+  
+  `$unwrap` controls whether or not the value of the promise is returned for a
+  fulfilled promise or if an exception is thrown if the promise is rejected.
+  This is set to `true` by default.
+
+- `cancel()`
+
+  Attempts to cancel the promise if possible. The promise being cancelled and
+  the parent most ancestor that has not yet been resolved will also be
+  cancelled. Any promises waiting on the cancelled promise to resolve will also
+  be cancelled.
+
+- `getState() : string`
+
+  Returns the state of the promise. One of `pending`, `fulfilled`, or
+  `rejected`.
+
+- `resolve($value)`
+
+  Fulfills the promise with the given `$value`.
+
+- `reject($reason)`
+
+  Rejects the promise with the given `$reason`.
+
+
+## FulfilledPromise
+
+A fulfilled promise can be created to represent a promise that has been
+fulfilled.
+
+```php
+use GuzzleHttp\Promise\FulfilledPromise;
+
+$promise = new FulfilledPromise('value');
+
+// Fulfilled callbacks are immediately invoked.
+$promise->then(function ($value) {
+    echo $value;
+});
+```
+
+
+## RejectedPromise
+
+A rejected promise can be created to represent a promise that has been
+rejected.
+
+```php
+use GuzzleHttp\Promise\RejectedPromise;
+
+$promise = new RejectedPromise('Error');
+
+// Rejected callbacks are immediately invoked.
+$promise->then(null, function ($reason) {
+    echo $reason;
+});
+```
+
+
+# Promise interop
+
+This library works with foreign promises that have a `then` method. This means
+you can use Guzzle promises with [React promises](https://github.com/reactphp/promise)
+for example. When a foreign promise is returned inside of a then method
+callback, promise resolution will occur recursively.
+
+```php
+// Create a React promise
+$deferred = new React\Promise\Deferred();
+$reactPromise = $deferred->promise();
+
+// Create a Guzzle promise that is fulfilled with a React promise.
+$guzzlePromise = new GuzzleHttp\Promise\Promise();
+$guzzlePromise->then(function ($value) use ($reactPromise) {
+    // Do something something with the value...
+    // Return the React promise
+    return $reactPromise;
+});
+```
+
+Please note that wait and cancel chaining is no longer possible when forwarding
+a foreign promise. You will need to wrap a third-party promise with a Guzzle
+promise in order to utilize wait and cancel functions with foreign promises.
+
+
+## Event Loop Integration
+
+In order to keep the stack size constant, Guzzle promises are resolved
+asynchronously using a task queue. When waiting on promises synchronously, the
+task queue will be automatically run to ensure that the blocking promise and
+any forwarded promises are resolved. When using promises asynchronously in an
+event loop, you will need to run the task queue on each tick of the loop. If
+you do not run the task queue, then promises will not be resolved.
+
+You can run the task queue using the `run()` method of the global task queue
+instance.
+
+```php
+// Get the global task queue
+$queue = GuzzleHttp\Promise\Utils::queue();
+$queue->run();
+```
+
+For example, you could use Guzzle promises with React using a periodic timer:
+
+```php
+$loop = React\EventLoop\Factory::create();
+$loop->addPeriodicTimer(0, [$queue, 'run']);
+```
+
+*TODO*: Perhaps adding a `futureTick()` on each tick would be faster?
+
+
+# Implementation notes
+
+
+## Promise resolution and chaining is handled iteratively
+
+By shuffling pending handlers from one owner to another, promises are
+resolved iteratively, allowing for "infinite" then chaining.
+
+```php
+<?php
+require 'vendor/autoload.php';
+
+use GuzzleHttp\Promise\Promise;
+
+$parent = new Promise();
+$p = $parent;
+
+for ($i = 0; $i < 1000; $i++) {
+    $p = $p->then(function ($v) {
+        // The stack size remains constant (a good thing)
+        echo xdebug_get_stack_depth() . ', ';
+        return $v + 1;
+    });
+}
+
+$parent->resolve(0);
+var_dump($p->wait()); // int(1000)
+
+```
+
+When a promise is fulfilled or rejected with a non-promise value, the promise
+then takes ownership of the handlers of each child promise and delivers values
+down the chain without using recursion.
+
+When a promise is resolved with another promise, the original promise transfers
+all of its pending handlers to the new promise. When the new promise is
+eventually resolved, all of the pending handlers are delivered the forwarded
+value.
+
+
+## A promise is the deferred.
+
+Some promise libraries implement promises using a deferred object to represent
+a computation and a promise object to represent the delivery of the result of
+the computation. This is a nice separation of computation and delivery because
+consumers of the promise cannot modify the value that will be eventually
+delivered.
+
+One side effect of being able to implement promise resolution and chaining
+iteratively is that you need to be able for one promise to reach into the state
+of another promise to shuffle around ownership of handlers. In order to achieve
+this without making the handlers of a promise publicly mutable, a promise is
+also the deferred value, allowing promises of the same parent class to reach
+into and modify the private properties of promises of the same type. While this
+does allow consumers of the value to modify the resolution or rejection of the
+deferred, it is a small price to pay for keeping the stack size constant.
+
+```php
+$promise = new Promise();
+$promise->then(function ($value) { echo $value; });
+// The promise is the deferred value, so you can deliver a value to it.
+$promise->resolve('foo');
+// prints "foo"
+```
+
+
+## Upgrading from Function API
+
+A static API was first introduced in 1.4.0, in order to mitigate problems with functions conflicting between global and local copies of the package. The function API will be removed in 2.0.0. A migration table has been provided here for your convenience:
+
+| Original Function | Replacement Method |
+|----------------|----------------|
+| `queue` | `Utils::queue` |
+| `task` | `Utils::task` |
+| `promise_for` | `Create::promiseFor` |
+| `rejection_for` | `Create::rejectionFor` |
+| `exception_for` | `Create::exceptionFor` |
+| `iter_for` | `Create::iterFor` |
+| `inspect` | `Utils::inspect` |
+| `inspect_all` | `Utils::inspectAll` |
+| `unwrap` | `Utils::unwrap` |
+| `all` | `Utils::all` |
+| `some` | `Utils::some` |
+| `any` | `Utils::any` |
+| `settle` | `Utils::settle` |
+| `each` | `Each::of` |
+| `each_limit` | `Each::ofLimit` |
+| `each_limit_all` | `Each::ofLimitAll` |
+| `!is_fulfilled` | `Is::pending` |
+| `is_fulfilled` | `Is::fulfilled` |
+| `is_rejected` | `Is::rejected` |
+| `is_settled` | `Is::settled` |
+| `coroutine` | `Coroutine::of` |
+
+
+## Security
+
+If you discover a security vulnerability within this package, please send an email to security@tidelift.com. All security vulnerabilities will be promptly addressed. Please do not disclose security-related issues publicly until a fix has been announced. Please see [Security Policy](https://github.com/guzzle/promises/security/policy) for more information.
+
+## License
+
+Guzzle is made available under the MIT License (MIT). Please see [License File](LICENSE) for more information.
+
+## For Enterprise
+
+Available as part of the Tidelift Subscription
+
+The maintainers of Guzzle and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/packagist-guzzlehttp-promises?utm_source=packagist-guzzlehttp-promises&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)

vendor/guzzlehttp/promises/composer.json

@@ -0,0 +1,58 @@
+{
+    "name": "guzzlehttp/promises",
+    "description": "Guzzle promises library",
+    "keywords": ["promise"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Graham Campbell",
+            "email": "hello@gjcampbell.co.uk",
+            "homepage": "https://github.com/GrahamCampbell"
+        },
+        {
+            "name": "Michael Dowling",
+            "email": "mtdowling@gmail.com",
+            "homepage": "https://github.com/mtdowling"
+        },
+        {
+            "name": "Tobias Nyholm",
+            "email": "tobias.nyholm@gmail.com",
+            "homepage": "https://github.com/Nyholm"
+        },
+        {
+            "name": "Tobias Schultze",
+            "email": "webmaster@tubo-world.de",
+            "homepage": "https://github.com/Tobion"
+        }
+    ],
+    "require": {
+        "php": ">=5.5"
+    },
+    "require-dev": {
+        "symfony/phpunit-bridge": "^4.4 || ^5.1"
+    },
+    "autoload": {
+        "psr-4": {
+            "GuzzleHttp\\Promise\\": "src/"
+        },
+        "files": ["src/functions_include.php"]
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "GuzzleHttp\\Promise\\Tests\\": "tests/"
+        }
+    },
+    "scripts": {
+        "test": "vendor/bin/simple-phpunit",
+        "test-ci": "vendor/bin/simple-phpunit --coverage-text"
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.5-dev"
+        }
+    },
+    "config": {
+        "preferred-install": "dist",
+        "sort-packages": true
+    }
+}

vendor/guzzlehttp/promises/src/AggregateException.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * Exception thrown when too many errors occur in the some() or any() methods.
+ */
+class AggregateException extends RejectionException
+{
+    public function __construct($msg, array $reasons)
+    {
+        parent::__construct(
+            $reasons,
+            sprintf('%s; %d rejected promises', $msg, count($reasons))
+        );
+    }
+}

vendor/guzzlehttp/promises/src/CancellationException.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * Exception that is set as the reason for a promise that has been cancelled.
+ */
+class CancellationException extends RejectionException
+{
+}

vendor/guzzlehttp/promises/src/Coroutine.php

@@ -0,0 +1,169 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+use Exception;
+use Generator;
+use Throwable;
+
+/**
+ * Creates a promise that is resolved using a generator that yields values or
+ * promises (somewhat similar to C#'s async keyword).
+ *
+ * When called, the Coroutine::of method will start an instance of the generator
+ * and returns a promise that is fulfilled with its final yielded value.
+ *
+ * Control is returned back to the generator when the yielded promise settles.
+ * This can lead to less verbose code when doing lots of sequential async calls
+ * with minimal processing in between.
+ *
+ *     use GuzzleHttp\Promise;
+ *
+ *     function createPromise($value) {
+ *         return new Promise\FulfilledPromise($value);
+ *     }
+ *
+ *     $promise = Promise\Coroutine::of(function () {
+ *         $value = (yield createPromise('a'));
+ *         try {
+ *             $value = (yield createPromise($value . 'b'));
+ *         } catch (\Exception $e) {
+ *             // The promise was rejected.
+ *         }
+ *         yield $value . 'c';
+ *     });
+ *
+ *     // Outputs "abc"
+ *     $promise->then(function ($v) { echo $v; });
+ *
+ * @param callable $generatorFn Generator function to wrap into a promise.
+ *
+ * @return Promise
+ *
+ * @link https://github.com/petkaantonov/bluebird/blob/master/API.md#generators inspiration
+ */
+final class Coroutine implements PromiseInterface
+{
+    /**
+     * @var PromiseInterface|null
+     */
+    private $currentPromise;
+
+    /**
+     * @var Generator
+     */
+    private $generator;
+
+    /**
+     * @var Promise
+     */
+    private $result;
+
+    public function __construct(callable $generatorFn)
+    {
+        $this->generator = $generatorFn();
+        $this->result = new Promise(function () {
+            while (isset($this->currentPromise)) {
+                $this->currentPromise->wait();
+            }
+        });
+        try {
+            $this->nextCoroutine($this->generator->current());
+        } catch (\Exception $exception) {
+            $this->result->reject($exception);
+        } catch (Throwable $throwable) {
+            $this->result->reject($throwable);
+        }
+    }
+
+    /**
+     * Create a new coroutine.
+     *
+     * @return self
+     */
+    public static function of(callable $generatorFn)
+    {
+        return new self($generatorFn);
+    }
+
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        return $this->result->then($onFulfilled, $onRejected);
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->result->otherwise($onRejected);
+    }
+
+    public function wait($unwrap = true)
+    {
+        return $this->result->wait($unwrap);
+    }
+
+    public function getState()
+    {
+        return $this->result->getState();
+    }
+
+    public function resolve($value)
+    {
+        $this->result->resolve($value);
+    }
+
+    public function reject($reason)
+    {
+        $this->result->reject($reason);
+    }
+
+    public function cancel()
+    {
+        $this->currentPromise->cancel();
+        $this->result->cancel();
+    }
+
+    private function nextCoroutine($yielded)
+    {
+        $this->currentPromise = Create::promiseFor($yielded)
+            ->then([$this, '_handleSuccess'], [$this, '_handleFailure']);
+    }
+
+    /**
+     * @internal
+     */
+    public function _handleSuccess($value)
+    {
+        unset($this->currentPromise);
+        try {
+            $next = $this->generator->send($value);
+            if ($this->generator->valid()) {
+                $this->nextCoroutine($next);
+            } else {
+                $this->result->resolve($value);
+            }
+        } catch (Exception $exception) {
+            $this->result->reject($exception);
+        } catch (Throwable $throwable) {
+            $this->result->reject($throwable);
+        }
+    }
+
+    /**
+     * @internal
+     */
+    public function _handleFailure($reason)
+    {
+        unset($this->currentPromise);
+        try {
+            $nextYield = $this->generator->throw(Create::exceptionFor($reason));
+            // The throw was caught, so keep iterating on the coroutine
+            $this->nextCoroutine($nextYield);
+        } catch (Exception $exception) {
+            $this->result->reject($exception);
+        } catch (Throwable $throwable) {
+            $this->result->reject($throwable);
+        }
+    }
+}

vendor/guzzlehttp/promises/src/Create.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+final class Create
+{
+    /**
+     * Creates a promise for a value if the value is not a promise.
+     *
+     * @param mixed $value Promise or value.
+     *
+     * @return PromiseInterface
+     */
+    public static function promiseFor($value)
+    {
+        if ($value instanceof PromiseInterface) {
+            return $value;
+        }
+
+        // Return a Guzzle promise that shadows the given promise.
+        if (is_object($value) && method_exists($value, 'then')) {
+            $wfn = method_exists($value, 'wait') ? [$value, 'wait'] : null;
+            $cfn = method_exists($value, 'cancel') ? [$value, 'cancel'] : null;
+            $promise = new Promise($wfn, $cfn);
+            $value->then([$promise, 'resolve'], [$promise, 'reject']);
+            return $promise;
+        }
+
+        return new FulfilledPromise($value);
+    }
+
+    /**
+     * Creates a rejected promise for a reason if the reason is not a promise.
+     * If the provided reason is a promise, then it is returned as-is.
+     *
+     * @param mixed $reason Promise or reason.
+     *
+     * @return PromiseInterface
+     */
+    public static function rejectionFor($reason)
+    {
+        if ($reason instanceof PromiseInterface) {
+            return $reason;
+        }
+
+        return new RejectedPromise($reason);
+    }
+
+    /**
+     * Create an exception for a rejected promise value.
+     *
+     * @param mixed $reason
+     *
+     * @return \Exception|\Throwable
+     */
+    public static function exceptionFor($reason)
+    {
+        if ($reason instanceof \Exception || $reason instanceof \Throwable) {
+            return $reason;
+        }
+
+        return new RejectionException($reason);
+    }
+
+    /**
+     * Returns an iterator for the given value.
+     *
+     * @param mixed $value
+     *
+     * @return \Iterator
+     */
+    public static function iterFor($value)
+    {
+        if ($value instanceof \Iterator) {
+            return $value;
+        }
+
+        if (is_array($value)) {
+            return new \ArrayIterator($value);
+        }
+
+        return new \ArrayIterator([$value]);
+    }
+}

vendor/guzzlehttp/promises/src/Each.php

@@ -0,0 +1,90 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+final class Each
+{
+    /**
+     * Given an iterator that yields promises or values, returns a promise that
+     * is fulfilled with a null value when the iterator has been consumed or
+     * the aggregate promise has been fulfilled or rejected.
+     *
+     * $onFulfilled is a function that accepts the fulfilled value, iterator
+     * index, and the aggregate promise. The callback can invoke any necessary
+     * side effects and choose to resolve or reject the aggregate if needed.
+     *
+     * $onRejected is a function that accepts the rejection reason, iterator
+     * index, and the aggregate promise. The callback can invoke any necessary
+     * side effects and choose to resolve or reject the aggregate if needed.
+     *
+     * @param mixed    $iterable    Iterator or array to iterate over.
+     * @param callable $onFulfilled
+     * @param callable $onRejected
+     *
+     * @return PromiseInterface
+     */
+    public static function of(
+        $iterable,
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        return (new EachPromise($iterable, [
+            'fulfilled' => $onFulfilled,
+            'rejected'  => $onRejected
+        ]))->promise();
+    }
+
+    /**
+     * Like of, but only allows a certain number of outstanding promises at any
+     * given time.
+     *
+     * $concurrency may be an integer or a function that accepts the number of
+     * pending promises and returns a numeric concurrency limit value to allow
+     * for dynamic a concurrency size.
+     *
+     * @param mixed        $iterable
+     * @param int|callable $concurrency
+     * @param callable     $onFulfilled
+     * @param callable     $onRejected
+     *
+     * @return PromiseInterface
+     */
+    public static function ofLimit(
+        $iterable,
+        $concurrency,
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        return (new EachPromise($iterable, [
+            'fulfilled'   => $onFulfilled,
+            'rejected'    => $onRejected,
+            'concurrency' => $concurrency
+        ]))->promise();
+    }
+
+    /**
+     * Like limit, but ensures that no promise in the given $iterable argument
+     * is rejected. If any promise is rejected, then the aggregate promise is
+     * rejected with the encountered rejection.
+     *
+     * @param mixed        $iterable
+     * @param int|callable $concurrency
+     * @param callable     $onFulfilled
+     *
+     * @return PromiseInterface
+     */
+    public static function ofLimitAll(
+        $iterable,
+        $concurrency,
+        callable $onFulfilled = null
+    ) {
+        return each_limit(
+            $iterable,
+            $concurrency,
+            $onFulfilled,
+            function ($reason, $idx, PromiseInterface $aggregate) {
+                $aggregate->reject($reason);
+            }
+        );
+    }
+}

vendor/guzzlehttp/promises/src/EachPromise.php

@@ -0,0 +1,255 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * Represents a promise that iterates over many promises and invokes
+ * side-effect functions in the process.
+ */
+class EachPromise implements PromisorInterface
+{
+    private $pending = [];
+
+    private $nextPendingIndex = 0;
+
+    /** @var \Iterator|null */
+    private $iterable;
+
+    /** @var callable|int|null */
+    private $concurrency;
+
+    /** @var callable|null */
+    private $onFulfilled;
+
+    /** @var callable|null */
+    private $onRejected;
+
+    /** @var Promise|null */
+    private $aggregate;
+
+    /** @var bool|null */
+    private $mutex;
+
+    /**
+     * Configuration hash can include the following key value pairs:
+     *
+     * - fulfilled: (callable) Invoked when a promise fulfills. The function
+     *   is invoked with three arguments: the fulfillment value, the index
+     *   position from the iterable list of the promise, and the aggregate
+     *   promise that manages all of the promises. The aggregate promise may
+     *   be resolved from within the callback to short-circuit the promise.
+     * - rejected: (callable) Invoked when a promise is rejected. The
+     *   function is invoked with three arguments: the rejection reason, the
+     *   index position from the iterable list of the promise, and the
+     *   aggregate promise that manages all of the promises. The aggregate
+     *   promise may be resolved from within the callback to short-circuit
+     *   the promise.
+     * - concurrency: (integer) Pass this configuration option to limit the
+     *   allowed number of outstanding concurrently executing promises,
+     *   creating a capped pool of promises. There is no limit by default.
+     *
+     * @param mixed $iterable Promises or values to iterate.
+     * @param array $config   Configuration options
+     */
+    public function __construct($iterable, array $config = [])
+    {
+        $this->iterable = Create::iterFor($iterable);
+
+        if (isset($config['concurrency'])) {
+            $this->concurrency = $config['concurrency'];
+        }
+
+        if (isset($config['fulfilled'])) {
+            $this->onFulfilled = $config['fulfilled'];
+        }
+
+        if (isset($config['rejected'])) {
+            $this->onRejected = $config['rejected'];
+        }
+    }
+
+    /** @psalm-suppress InvalidNullableReturnType */
+    public function promise()
+    {
+        if ($this->aggregate) {
+            return $this->aggregate;
+        }
+
+        try {
+            $this->createPromise();
+            /** @psalm-assert Promise $this->aggregate */
+            $this->iterable->rewind();
+            $this->refillPending();
+        } catch (\Throwable $e) {
+            /**
+             * @psalm-suppress NullReference
+             * @phpstan-ignore-next-line
+             */
+            $this->aggregate->reject($e);
+        } catch (\Exception $e) {
+            /**
+             * @psalm-suppress NullReference
+             * @phpstan-ignore-next-line
+             */
+            $this->aggregate->reject($e);
+        }
+
+        /**
+         * @psalm-suppress NullableReturnStatement
+         * @phpstan-ignore-next-line
+         */
+        return $this->aggregate;
+    }
+
+    private function createPromise()
+    {
+        $this->mutex = false;
+        $this->aggregate = new Promise(function () {
+            if ($this->checkIfFinished()) {
+                return;
+            }
+            reset($this->pending);
+            // Consume a potentially fluctuating list of promises while
+            // ensuring that indexes are maintained (precluding array_shift).
+            while ($promise = current($this->pending)) {
+                next($this->pending);
+                $promise->wait();
+                if (Is::settled($this->aggregate)) {
+                    return;
+                }
+            }
+        });
+
+        // Clear the references when the promise is resolved.
+        $clearFn = function () {
+            $this->iterable = $this->concurrency = $this->pending = null;
+            $this->onFulfilled = $this->onRejected = null;
+            $this->nextPendingIndex = 0;
+        };
+
+        $this->aggregate->then($clearFn, $clearFn);
+    }
+
+    private function refillPending()
+    {
+        if (!$this->concurrency) {
+            // Add all pending promises.
+            while ($this->addPending() && $this->advanceIterator());
+            return;
+        }
+
+        // Add only up to N pending promises.
+        $concurrency = is_callable($this->concurrency)
+            ? call_user_func($this->concurrency, count($this->pending))
+            : $this->concurrency;
+        $concurrency = max($concurrency - count($this->pending), 0);
+        // Concurrency may be set to 0 to disallow new promises.
+        if (!$concurrency) {
+            return;
+        }
+        // Add the first pending promise.
+        $this->addPending();
+        // Note this is special handling for concurrency=1 so that we do
+        // not advance the iterator after adding the first promise. This
+        // helps work around issues with generators that might not have the
+        // next value to yield until promise callbacks are called.
+        while (--$concurrency
+            && $this->advanceIterator()
+            && $this->addPending());
+    }
+
+    private function addPending()
+    {
+        if (!$this->iterable || !$this->iterable->valid()) {
+            return false;
+        }
+
+        $promise = Create::promiseFor($this->iterable->current());
+        $key = $this->iterable->key();
+
+        // Iterable keys may not be unique, so we use a counter to
+        // guarantee uniqueness
+        $idx = $this->nextPendingIndex++;
+
+        $this->pending[$idx] = $promise->then(
+            function ($value) use ($idx, $key) {
+                if ($this->onFulfilled) {
+                    call_user_func(
+                        $this->onFulfilled,
+                        $value,
+                        $key,
+                        $this->aggregate
+                    );
+                }
+                $this->step($idx);
+            },
+            function ($reason) use ($idx, $key) {
+                if ($this->onRejected) {
+                    call_user_func(
+                        $this->onRejected,
+                        $reason,
+                        $key,
+                        $this->aggregate
+                    );
+                }
+                $this->step($idx);
+            }
+        );
+
+        return true;
+    }
+
+    private function advanceIterator()
+    {
+        // Place a lock on the iterator so that we ensure to not recurse,
+        // preventing fatal generator errors.
+        if ($this->mutex) {
+            return false;
+        }
+
+        $this->mutex = true;
+
+        try {
+            $this->iterable->next();
+            $this->mutex = false;
+            return true;
+        } catch (\Throwable $e) {
+            $this->aggregate->reject($e);
+            $this->mutex = false;
+            return false;
+        } catch (\Exception $e) {
+            $this->aggregate->reject($e);
+            $this->mutex = false;
+            return false;
+        }
+    }
+
+    private function step($idx)
+    {
+        // If the promise was already resolved, then ignore this step.
+        if (Is::settled($this->aggregate)) {
+            return;
+        }
+
+        unset($this->pending[$idx]);
+
+        // Only refill pending promises if we are not locked, preventing the
+        // EachPromise to recursively invoke the provided iterator, which
+        // cause a fatal error: "Cannot resume an already running generator"
+        if ($this->advanceIterator() && !$this->checkIfFinished()) {
+            // Add more pending promises if possible.
+            $this->refillPending();
+        }
+    }
+
+    private function checkIfFinished()
+    {
+        if (!$this->pending && !$this->iterable->valid()) {
+            // Resolve the promise if there's nothing left to do.
+            $this->aggregate->resolve(null);
+            return true;
+        }
+
+        return false;
+    }
+}

vendor/guzzlehttp/promises/src/FulfilledPromise.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * A promise that has been fulfilled.
+ *
+ * Thenning off of this promise will invoke the onFulfilled callback
+ * immediately and ignore other callbacks.
+ */
+class FulfilledPromise implements PromiseInterface
+{
+    private $value;
+
+    public function __construct($value)
+    {
+        if (is_object($value) && method_exists($value, 'then')) {
+            throw new \InvalidArgumentException(
+                'You cannot create a FulfilledPromise with a promise.'
+            );
+        }
+
+        $this->value = $value;
+    }
+
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        // Return itself if there is no onFulfilled function.
+        if (!$onFulfilled) {
+            return $this;
+        }
+
+        $queue = Utils::queue();
+        $p = new Promise([$queue, 'run']);
+        $value = $this->value;
+        $queue->add(static function () use ($p, $value, $onFulfilled) {
+            if (Is::pending($p)) {
+                try {
+                    $p->resolve($onFulfilled($value));
+                } catch (\Throwable $e) {
+                    $p->reject($e);
+                } catch (\Exception $e) {
+                    $p->reject($e);
+                }
+            }
+        });
+
+        return $p;
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->then(null, $onRejected);
+    }
+
+    public function wait($unwrap = true, $defaultDelivery = null)
+    {
+        return $unwrap ? $this->value : null;
+    }
+
+    public function getState()
+    {
+        return self::FULFILLED;
+    }
+
+    public function resolve($value)
+    {
+        if ($value !== $this->value) {
+            throw new \LogicException("Cannot resolve a fulfilled promise");
+        }
+    }
+
+    public function reject($reason)
+    {
+        throw new \LogicException("Cannot reject a fulfilled promise");
+    }
+
+    public function cancel()
+    {
+        // pass
+    }
+}

vendor/guzzlehttp/promises/src/Is.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+final class Is
+{
+    /**
+     * Returns true if a promise is pending.
+     *
+     * @return bool
+     */
+    public static function pending(PromiseInterface $promise)
+    {
+        return $promise->getState() === PromiseInterface::PENDING;
+    }
+
+    /**
+     * Returns true if a promise is fulfilled or rejected.
+     *
+     * @return bool
+     */
+    public static function settled(PromiseInterface $promise)
+    {
+        return $promise->getState() !== PromiseInterface::PENDING;
+    }
+
+    /**
+     * Returns true if a promise is fulfilled.
+     *
+     * @return bool
+     */
+    public static function fulfilled(PromiseInterface $promise)
+    {
+        return $promise->getState() === PromiseInterface::FULFILLED;
+    }
+
+    /**
+     * Returns true if a promise is rejected.
+     *
+     * @return bool
+     */
+    public static function rejected(PromiseInterface $promise)
+    {
+        return $promise->getState() === PromiseInterface::REJECTED;
+    }
+}

vendor/guzzlehttp/promises/src/Promise.php

@@ -0,0 +1,278 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * Promises/A+ implementation that avoids recursion when possible.
+ *
+ * @link https://promisesaplus.com/
+ */
+class Promise implements PromiseInterface
+{
+    private $state = self::PENDING;
+    private $result;
+    private $cancelFn;
+    private $waitFn;
+    private $waitList;
+    private $handlers = [];
+
+    /**
+     * @param callable $waitFn   Fn that when invoked resolves the promise.
+     * @param callable $cancelFn Fn that when invoked cancels the promise.
+     */
+    public function __construct(
+        callable $waitFn = null,
+        callable $cancelFn = null
+    ) {
+        $this->waitFn = $waitFn;
+        $this->cancelFn = $cancelFn;
+    }
+
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        if ($this->state === self::PENDING) {
+            $p = new Promise(null, [$this, 'cancel']);
+            $this->handlers[] = [$p, $onFulfilled, $onRejected];
+            $p->waitList = $this->waitList;
+            $p->waitList[] = $this;
+            return $p;
+        }
+
+        // Return a fulfilled promise and immediately invoke any callbacks.
+        if ($this->state === self::FULFILLED) {
+            $promise = Create::promiseFor($this->result);
+            return $onFulfilled ? $promise->then($onFulfilled) : $promise;
+        }
+
+        // It's either cancelled or rejected, so return a rejected promise
+        // and immediately invoke any callbacks.
+        $rejection = Create::rejectionFor($this->result);
+        return $onRejected ? $rejection->then(null, $onRejected) : $rejection;
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->then(null, $onRejected);
+    }
+
+    public function wait($unwrap = true)
+    {
+        $this->waitIfPending();
+
+        if ($this->result instanceof PromiseInterface) {
+            return $this->result->wait($unwrap);
+        }
+        if ($unwrap) {
+            if ($this->state === self::FULFILLED) {
+                return $this->result;
+            }
+            // It's rejected so "unwrap" and throw an exception.
+            throw Create::exceptionFor($this->result);
+        }
+    }
+
+    public function getState()
+    {
+        return $this->state;
+    }
+
+    public function cancel()
+    {
+        if ($this->state !== self::PENDING) {
+            return;
+        }
+
+        $this->waitFn = $this->waitList = null;
+
+        if ($this->cancelFn) {
+            $fn = $this->cancelFn;
+            $this->cancelFn = null;
+            try {
+                $fn();
+            } catch (\Throwable $e) {
+                $this->reject($e);
+            } catch (\Exception $e) {
+                $this->reject($e);
+            }
+        }
+
+        // Reject the promise only if it wasn't rejected in a then callback.
+        /** @psalm-suppress RedundantCondition */
+        if ($this->state === self::PENDING) {
+            $this->reject(new CancellationException('Promise has been cancelled'));
+        }
+    }
+
+    public function resolve($value)
+    {
+        $this->settle(self::FULFILLED, $value);
+    }
+
+    public function reject($reason)
+    {
+        $this->settle(self::REJECTED, $reason);
+    }
+
+    private function settle($state, $value)
+    {
+        if ($this->state !== self::PENDING) {
+            // Ignore calls with the same resolution.
+            if ($state === $this->state && $value === $this->result) {
+                return;
+            }
+            throw $this->state === $state
+                ? new \LogicException("The promise is already {$state}.")
+                : new \LogicException("Cannot change a {$this->state} promise to {$state}");
+        }
+
+        if ($value === $this) {
+            throw new \LogicException('Cannot fulfill or reject a promise with itself');
+        }
+
+        // Clear out the state of the promise but stash the handlers.
+        $this->state = $state;
+        $this->result = $value;
+        $handlers = $this->handlers;
+        $this->handlers = null;
+        $this->waitList = $this->waitFn = null;
+        $this->cancelFn = null;
+
+        if (!$handlers) {
+            return;
+        }
+
+        // If the value was not a settled promise or a thenable, then resolve
+        // it in the task queue using the correct ID.
+        if (!is_object($value) || !method_exists($value, 'then')) {
+            $id = $state === self::FULFILLED ? 1 : 2;
+            // It's a success, so resolve the handlers in the queue.
+            Utils::queue()->add(static function () use ($id, $value, $handlers) {
+                foreach ($handlers as $handler) {
+                    self::callHandler($id, $value, $handler);
+                }
+            });
+        } elseif ($value instanceof Promise && Is::pending($value)) {
+            // We can just merge our handlers onto the next promise.
+            $value->handlers = array_merge($value->handlers, $handlers);
+        } else {
+            // Resolve the handlers when the forwarded promise is resolved.
+            $value->then(
+                static function ($value) use ($handlers) {
+                    foreach ($handlers as $handler) {
+                        self::callHandler(1, $value, $handler);
+                    }
+                },
+                static function ($reason) use ($handlers) {
+                    foreach ($handlers as $handler) {
+                        self::callHandler(2, $reason, $handler);
+                    }
+                }
+            );
+        }
+    }
+
+    /**
+     * Call a stack of handlers using a specific callback index and value.
+     *
+     * @param int   $index   1 (resolve) or 2 (reject).
+     * @param mixed $value   Value to pass to the callback.
+     * @param array $handler Array of handler data (promise and callbacks).
+     */
+    private static function callHandler($index, $value, array $handler)
+    {
+        /** @var PromiseInterface $promise */
+        $promise = $handler[0];
+
+        // The promise may have been cancelled or resolved before placing
+        // this thunk in the queue.
+        if (Is::settled($promise)) {
+            return;
+        }
+
+        try {
+            if (isset($handler[$index])) {
+                /*
+                 * If $f throws an exception, then $handler will be in the exception
+                 * stack trace. Since $handler contains a reference to the callable
+                 * itself we get a circular reference. We clear the $handler
+                 * here to avoid that memory leak.
+                 */
+                $f = $handler[$index];
+                unset($handler);
+                $promise->resolve($f($value));
+            } elseif ($index === 1) {
+                // Forward resolution values as-is.
+                $promise->resolve($value);
+            } else {
+                // Forward rejections down the chain.
+                $promise->reject($value);
+            }
+        } catch (\Throwable $reason) {
+            $promise->reject($reason);
+        } catch (\Exception $reason) {
+            $promise->reject($reason);
+        }
+    }
+
+    private function waitIfPending()
+    {
+        if ($this->state !== self::PENDING) {
+            return;
+        } elseif ($this->waitFn) {
+            $this->invokeWaitFn();
+        } elseif ($this->waitList) {
+            $this->invokeWaitList();
+        } else {
+            // If there's no wait function, then reject the promise.
+            $this->reject('Cannot wait on a promise that has '
+                . 'no internal wait function. You must provide a wait '
+                . 'function when constructing the promise to be able to '
+                . 'wait on a promise.');
+        }
+
+        Utils::queue()->run();
+
+        /** @psalm-suppress RedundantCondition */
+        if ($this->state === self::PENDING) {
+            $this->reject('Invoking the wait callback did not resolve the promise');
+        }
+    }
+
+    private function invokeWaitFn()
+    {
+        try {
+            $wfn = $this->waitFn;
+            $this->waitFn = null;
+            $wfn(true);
+        } catch (\Exception $reason) {
+            if ($this->state === self::PENDING) {
+                // The promise has not been resolved yet, so reject the promise
+                // with the exception.
+                $this->reject($reason);
+            } else {
+                // The promise was already resolved, so there's a problem in
+                // the application.
+                throw $reason;
+            }
+        }
+    }
+
+    private function invokeWaitList()
+    {
+        $waitList = $this->waitList;
+        $this->waitList = null;
+
+        foreach ($waitList as $result) {
+            do {
+                $result->waitIfPending();
+                $result = $result->result;
+            } while ($result instanceof Promise);
+
+            if ($result instanceof PromiseInterface) {
+                $result->wait(false);
+            }
+        }
+    }
+}

vendor/guzzlehttp/promises/src/PromiseInterface.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * A promise represents the eventual result of an asynchronous operation.
+ *
+ * The primary way of interacting with a promise is through its then method,
+ * which registers callbacks to receive either a promise’s eventual value or
+ * the reason why the promise cannot be fulfilled.
+ *
+ * @link https://promisesaplus.com/
+ */
+interface PromiseInterface
+{
+    const PENDING = 'pending';
+    const FULFILLED = 'fulfilled';
+    const REJECTED = 'rejected';
+
+    /**
+     * Appends fulfillment and rejection handlers to the promise, and returns
+     * a new promise resolving to the return value of the called handler.
+     *
+     * @param callable $onFulfilled Invoked when the promise fulfills.
+     * @param callable $onRejected  Invoked when the promise is rejected.
+     *
+     * @return PromiseInterface
+     */
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    );
+
+    /**
+     * Appends a rejection handler callback to the promise, and returns a new
+     * promise resolving to the return value of the callback if it is called,
+     * or to its original fulfillment value if the promise is instead
+     * fulfilled.
+     *
+     * @param callable $onRejected Invoked when the promise is rejected.
+     *
+     * @return PromiseInterface
+     */
+    public function otherwise(callable $onRejected);
+
+    /**
+     * Get the state of the promise ("pending", "rejected", or "fulfilled").
+     *
+     * The three states can be checked against the constants defined on
+     * PromiseInterface: PENDING, FULFILLED, and REJECTED.
+     *
+     * @return string
+     */
+    public function getState();
+
+    /**
+     * Resolve the promise with the given value.
+     *
+     * @param mixed $value
+     *
+     * @throws \RuntimeException if the promise is already resolved.
+     */
+    public function resolve($value);
+
+    /**
+     * Reject the promise with the given reason.
+     *
+     * @param mixed $reason
+     *
+     * @throws \RuntimeException if the promise is already resolved.
+     */
+    public function reject($reason);
+
+    /**
+     * Cancels the promise if possible.
+     *
+     * @link https://github.com/promises-aplus/cancellation-spec/issues/7
+     */
+    public function cancel();
+
+    /**
+     * Waits until the promise completes if possible.
+     *
+     * Pass $unwrap as true to unwrap the result of the promise, either
+     * returning the resolved value or throwing the rejected exception.
+     *
+     * If the promise cannot be waited on, then the promise will be rejected.
+     *
+     * @param bool $unwrap
+     *
+     * @return mixed
+     *
+     * @throws \LogicException if the promise has no wait function or if the
+     *                         promise does not settle after waiting.
+     */
+    public function wait($unwrap = true);
+}

vendor/guzzlehttp/promises/src/PromisorInterface.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * Interface used with classes that return a promise.
+ */
+interface PromisorInterface
+{
+    /**
+     * Returns a promise.
+     *
+     * @return PromiseInterface
+     */
+    public function promise();
+}

vendor/guzzlehttp/promises/src/RejectedPromise.php

@@ -0,0 +1,91 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * A promise that has been rejected.
+ *
+ * Thenning off of this promise will invoke the onRejected callback
+ * immediately and ignore other callbacks.
+ */
+class RejectedPromise implements PromiseInterface
+{
+    private $reason;
+
+    public function __construct($reason)
+    {
+        if (is_object($reason) && method_exists($reason, 'then')) {
+            throw new \InvalidArgumentException(
+                'You cannot create a RejectedPromise with a promise.'
+            );
+        }
+
+        $this->reason = $reason;
+    }
+
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        // If there's no onRejected callback then just return self.
+        if (!$onRejected) {
+            return $this;
+        }
+
+        $queue = Utils::queue();
+        $reason = $this->reason;
+        $p = new Promise([$queue, 'run']);
+        $queue->add(static function () use ($p, $reason, $onRejected) {
+            if (Is::pending($p)) {
+                try {
+                    // Return a resolved promise if onRejected does not throw.
+                    $p->resolve($onRejected($reason));
+                } catch (\Throwable $e) {
+                    // onRejected threw, so return a rejected promise.
+                    $p->reject($e);
+                } catch (\Exception $e) {
+                    // onRejected threw, so return a rejected promise.
+                    $p->reject($e);
+                }
+            }
+        });
+
+        return $p;
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->then(null, $onRejected);
+    }
+
+    public function wait($unwrap = true, $defaultDelivery = null)
+    {
+        if ($unwrap) {
+            throw Create::exceptionFor($this->reason);
+        }
+
+        return null;
+    }
+
+    public function getState()
+    {
+        return self::REJECTED;
+    }
+
+    public function resolve($value)
+    {
+        throw new \LogicException("Cannot resolve a rejected promise");
+    }
+
+    public function reject($reason)
+    {
+        if ($reason !== $this->reason) {
+            throw new \LogicException("Cannot reject a rejected promise");
+        }
+    }
+
+    public function cancel()
+    {
+        // pass
+    }
+}

vendor/guzzlehttp/promises/src/RejectionException.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * A special exception that is thrown when waiting on a rejected promise.
+ *
+ * The reason value is available via the getReason() method.
+ */
+class RejectionException extends \RuntimeException
+{
+    /** @var mixed Rejection reason. */
+    private $reason;
+
+    /**
+     * @param mixed  $reason      Rejection reason.
+     * @param string $description Optional description
+     */
+    public function __construct($reason, $description = null)
+    {
+        $this->reason = $reason;
+
+        $message = 'The promise was rejected';
+
+        if ($description) {
+            $message .= ' with reason: ' . $description;
+        } elseif (is_string($reason)
+            || (is_object($reason) && method_exists($reason, '__toString'))
+        ) {
+            $message .= ' with reason: ' . $this->reason;
+        } elseif ($reason instanceof \JsonSerializable) {
+            $message .= ' with reason: '
+                . json_encode($this->reason, JSON_PRETTY_PRINT);
+        }
+
+        parent::__construct($message);
+    }
+
+    /**
+     * Returns the rejection reason.
+     *
+     * @return mixed
+     */
+    public function getReason()
+    {
+        return $this->reason;
+    }
+}

vendor/guzzlehttp/promises/src/TaskQueue.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * A task queue that executes tasks in a FIFO order.
+ *
+ * This task queue class is used to settle promises asynchronously and
+ * maintains a constant stack size. You can use the task queue asynchronously
+ * by calling the `run()` function of the global task queue in an event loop.
+ *
+ *     GuzzleHttp\Promise\Utils::queue()->run();
+ */
+class TaskQueue implements TaskQueueInterface
+{
+    private $enableShutdown = true;
+    private $queue = [];
+
+    public function __construct($withShutdown = true)
+    {
+        if ($withShutdown) {
+            register_shutdown_function(function () {
+                if ($this->enableShutdown) {
+                    // Only run the tasks if an E_ERROR didn't occur.
+                    $err = error_get_last();
+                    if (!$err || ($err['type'] ^ E_ERROR)) {
+                        $this->run();
+                    }
+                }
+            });
+        }
+    }
+
+    public function isEmpty()
+    {
+        return !$this->queue;
+    }
+
+    public function add(callable $task)
+    {
+        $this->queue[] = $task;
+    }
+
+    public function run()
+    {
+        while ($task = array_shift($this->queue)) {
+            /** @var callable $task */
+            $task();
+        }
+    }
+
+    /**
+     * The task queue will be run and exhausted by default when the process
+     * exits IFF the exit is not the result of a PHP E_ERROR error.
+     *
+     * You can disable running the automatic shutdown of the queue by calling
+     * this function. If you disable the task queue shutdown process, then you
+     * MUST either run the task queue (as a result of running your event loop
+     * or manually using the run() method) or wait on each outstanding promise.
+     *
+     * Note: This shutdown will occur before any destructors are triggered.
+     */
+    public function disableShutdown()
+    {
+        $this->enableShutdown = false;
+    }
+}

vendor/guzzlehttp/promises/src/TaskQueueInterface.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+interface TaskQueueInterface
+{
+    /**
+     * Returns true if the queue is empty.
+     *
+     * @return bool
+     */
+    public function isEmpty();
+
+    /**
+     * Adds a task to the queue that will be executed the next time run is
+     * called.
+     */
+    public function add(callable $task);
+
+    /**
+     * Execute all of the pending task in the queue.
+     */
+    public function run();
+}

vendor/guzzlehttp/promises/src/Utils.php

@@ -0,0 +1,276 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+final class Utils
+{
+    /**
+     * Get the global task queue used for promise resolution.
+     *
+     * This task queue MUST be run in an event loop in order for promises to be
+     * settled asynchronously. It will be automatically run when synchronously
+     * waiting on a promise.
+     *
+     * <code>
+     * while ($eventLoop->isRunning()) {
+     *     GuzzleHttp\Promise\Utils::queue()->run();
+     * }
+     * </code>
+     *
+     * @param TaskQueueInterface $assign Optionally specify a new queue instance.
+     *
+     * @return TaskQueueInterface
+     */
+    public static function queue(TaskQueueInterface $assign = null)
+    {
+        static $queue;
+
+        if ($assign) {
+            $queue = $assign;
+        } elseif (!$queue) {
+            $queue = new TaskQueue();
+        }
+
+        return $queue;
+    }
+
+    /**
+     * Adds a function to run in the task queue when it is next `run()` and
+     * returns a promise that is fulfilled or rejected with the result.
+     *
+     * @param callable $task Task function to run.
+     *
+     * @return PromiseInterface
+     */
+    public static function task(callable $task)
+    {
+        $queue = self::queue();
+        $promise = new Promise([$queue, 'run']);
+        $queue->add(function () use ($task, $promise) {
+            try {
+                if (Is::pending($promise)) {
+                    $promise->resolve($task());
+                }
+            } catch (\Throwable $e) {
+                $promise->reject($e);
+            } catch (\Exception $e) {
+                $promise->reject($e);
+            }
+        });
+
+        return $promise;
+    }
+
+    /**
+     * Synchronously waits on a promise to resolve and returns an inspection
+     * state array.
+     *
+     * Returns a state associative array containing a "state" key mapping to a
+     * valid promise state. If the state of the promise is "fulfilled", the
+     * array will contain a "value" key mapping to the fulfilled value of the
+     * promise. If the promise is rejected, the array will contain a "reason"
+     * key mapping to the rejection reason of the promise.
+     *
+     * @param PromiseInterface $promise Promise or value.
+     *
+     * @return array
+     */
+    public static function inspect(PromiseInterface $promise)
+    {
+        try {
+            return [
+                'state' => PromiseInterface::FULFILLED,
+                'value' => $promise->wait()
+            ];
+        } catch (RejectionException $e) {
+            return ['state' => PromiseInterface::REJECTED, 'reason' => $e->getReason()];
+        } catch (\Throwable $e) {
+            return ['state' => PromiseInterface::REJECTED, 'reason' => $e];
+        } catch (\Exception $e) {
+            return ['state' => PromiseInterface::REJECTED, 'reason' => $e];
+        }
+    }
+
+    /**
+     * Waits on all of the provided promises, but does not unwrap rejected
+     * promises as thrown exception.
+     *
+     * Returns an array of inspection state arrays.
+     *
+     * @see inspect for the inspection state array format.
+     *
+     * @param PromiseInterface[] $promises Traversable of promises to wait upon.
+     *
+     * @return array
+     */
+    public static function inspectAll($promises)
+    {
+        $results = [];
+        foreach ($promises as $key => $promise) {
+            $results[$key] = inspect($promise);
+        }
+
+        return $results;
+    }
+
+    /**
+     * Waits on all of the provided promises and returns the fulfilled values.
+     *
+     * Returns an array that contains the value of each promise (in the same
+     * order the promises were provided). An exception is thrown if any of the
+     * promises are rejected.
+     *
+     * @param iterable<PromiseInterface> $promises Iterable of PromiseInterface objects to wait on.
+     *
+     * @return array
+     *
+     * @throws \Exception on error
+     * @throws \Throwable on error in PHP >=7
+     */
+    public static function unwrap($promises)
+    {
+        $results = [];
+        foreach ($promises as $key => $promise) {
+            $results[$key] = $promise->wait();
+        }
+
+        return $results;
+    }
+
+    /**
+     * Given an array of promises, return a promise that is fulfilled when all
+     * the items in the array are fulfilled.
+     *
+     * The promise's fulfillment value is an array with fulfillment values at
+     * respective positions to the original array. If any promise in the array
+     * rejects, the returned promise is rejected with the rejection reason.
+     *
+     * @param mixed $promises  Promises or values.
+     * @param bool  $recursive If true, resolves new promises that might have been added to the stack during its own resolution.
+     *
+     * @return PromiseInterface
+     */
+    public static function all($promises, $recursive = false)
+    {
+        $results = [];
+        $promise = Each::of(
+            $promises,
+            function ($value, $idx) use (&$results) {
+                $results[$idx] = $value;
+            },
+            function ($reason, $idx, Promise $aggregate) {
+                $aggregate->reject($reason);
+            }
+        )->then(function () use (&$results) {
+            ksort($results);
+            return $results;
+        });
+
+        if (true === $recursive) {
+            $promise = $promise->then(function ($results) use ($recursive, &$promises) {
+                foreach ($promises as $promise) {
+                    if (Is::pending($promise)) {
+                        return self::all($promises, $recursive);
+                    }
+                }
+                return $results;
+            });
+        }
+
+        return $promise;
+    }
+
+    /**
+     * Initiate a competitive race between multiple promises or values (values
+     * will become immediately fulfilled promises).
+     *
+     * When count amount of promises have been fulfilled, the returned promise
+     * is fulfilled with an array that contains the fulfillment values of the
+     * winners in order of resolution.
+     *
+     * This promise is rejected with a {@see AggregateException} if the number
+     * of fulfilled promises is less than the desired $count.
+     *
+     * @param int   $count    Total number of promises.
+     * @param mixed $promises Promises or values.
+     *
+     * @return PromiseInterface
+     */
+    public static function some($count, $promises)
+    {
+        $results = [];
+        $rejections = [];
+
+        return Each::of(
+            $promises,
+            function ($value, $idx, PromiseInterface $p) use (&$results, $count) {
+                if (Is::settled($p)) {
+                    return;
+                }
+                $results[$idx] = $value;
+                if (count($results) >= $count) {
+                    $p->resolve(null);
+                }
+            },
+            function ($reason) use (&$rejections) {
+                $rejections[] = $reason;
+            }
+        )->then(
+            function () use (&$results, &$rejections, $count) {
+                if (count($results) !== $count) {
+                    throw new AggregateException(
+                        'Not enough promises to fulfill count',
+                        $rejections
+                    );
+                }
+                ksort($results);
+                return array_values($results);
+            }
+        );
+    }
+
+    /**
+     * Like some(), with 1 as count. However, if the promise fulfills, the
+     * fulfillment value is not an array of 1 but the value directly.
+     *
+     * @param mixed $promises Promises or values.
+     *
+     * @return PromiseInterface
+     */
+    public static function any($promises)
+    {
+        return self::some(1, $promises)->then(function ($values) {
+            return $values[0];
+        });
+    }
+
+    /**
+     * Returns a promise that is fulfilled when all of the provided promises have
+     * been fulfilled or rejected.
+     *
+     * The returned promise is fulfilled with an array of inspection state arrays.
+     *
+     * @see inspect for the inspection state array format.
+     *
+     * @param mixed $promises Promises or values.
+     *
+     * @return PromiseInterface
+     */
+    public static function settle($promises)
+    {
+        $results = [];
+
+        return Each::of(
+            $promises,
+            function ($value, $idx) use (&$results) {
+                $results[$idx] = ['state' => PromiseInterface::FULFILLED, 'value' => $value];
+            },
+            function ($reason, $idx) use (&$results) {
+                $results[$idx] = ['state' => PromiseInterface::REJECTED, 'reason' => $reason];
+            }
+        )->then(function () use (&$results) {
+            ksort($results);
+            return $results;
+        });
+    }
+}

vendor/guzzlehttp/promises/src/functions.php

@@ -0,0 +1,363 @@
+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * Get the global task queue used for promise resolution.
+ *
+ * This task queue MUST be run in an event loop in order for promises to be
+ * settled asynchronously. It will be automatically run when synchronously
+ * waiting on a promise.
+ *
+ * <code>
+ * while ($eventLoop->isRunning()) {
+ *     GuzzleHttp\Promise\queue()->run();
+ * }
+ * </code>
+ *
+ * @param TaskQueueInterface $assign Optionally specify a new queue instance.
+ *
+ * @return TaskQueueInterface
+ *
+ * @deprecated queue will be removed in guzzlehttp/promises:2.0. Use Utils::queue instead.
+ */
+function queue(TaskQueueInterface $assign = null)
+{
+    return Utils::queue($assign);
+}
+
+/**
+ * Adds a function to run in the task queue when it is next `run()` and returns
+ * a promise that is fulfilled or rejected with the result.
+ *
+ * @param callable $task Task function to run.
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated task will be removed in guzzlehttp/promises:2.0. Use Utils::task instead.
+ */
+function task(callable $task)
+{
+    return Utils::task($task);
+}
+
+/**
+ * Creates a promise for a value if the value is not a promise.
+ *
+ * @param mixed $value Promise or value.
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated promise_for will be removed in guzzlehttp/promises:2.0. Use Create::promiseFor instead.
+ */
+function promise_for($value)
+{
+    return Create::promiseFor($value);
+}
+
+/**
+ * Creates a rejected promise for a reason if the reason is not a promise. If
+ * the provided reason is a promise, then it is returned as-is.
+ *
+ * @param mixed $reason Promise or reason.
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated rejection_for will be removed in guzzlehttp/promises:2.0. Use Create::rejectionFor instead.
+ */
+function rejection_for($reason)
+{
+    return Create::rejectionFor($reason);
+}
+
+/**
+ * Create an exception for a rejected promise value.
+ *
+ * @param mixed $reason
+ *
+ * @return \Exception|\Throwable
+ *
+ * @deprecated exception_for will be removed in guzzlehttp/promises:2.0. Use Create::exceptionFor instead.
+ */
+function exception_for($reason)
+{
+    return Create::exceptionFor($reason);
+}
+
+/**
+ * Returns an iterator for the given value.
+ *
+ * @param mixed $value
+ *
+ * @return \Iterator
+ *
+ * @deprecated iter_for will be removed in guzzlehttp/promises:2.0. Use Create::iterFor instead.
+ */
+function iter_for($value)
+{
+    return Create::iterFor($value);
+}
+
+/**
+ * Synchronously waits on a promise to resolve and returns an inspection state
+ * array.
+ *
+ * Returns a state associative array containing a "state" key mapping to a
+ * valid promise state. If the state of the promise is "fulfilled", the array
+ * will contain a "value" key mapping to the fulfilled value of the promise. If
+ * the promise is rejected, the array will contain a "reason" key mapping to
+ * the rejection reason of the promise.
+ *
+ * @param PromiseInterface $promise Promise or value.
+ *
+ * @return array
+ *
+ * @deprecated inspect will be removed in guzzlehttp/promises:2.0. Use Utils::inspect instead.
+ */
+function inspect(PromiseInterface $promise)
+{
+    return Utils::inspect($promise);
+}
+
+/**
+ * Waits on all of the provided promises, but does not unwrap rejected promises
+ * as thrown exception.
+ *
+ * Returns an array of inspection state arrays.
+ *
+ * @see inspect for the inspection state array format.
+ *
+ * @param PromiseInterface[] $promises Traversable of promises to wait upon.
+ *
+ * @return array
+ *
+ * @deprecated inspect will be removed in guzzlehttp/promises:2.0. Use Utils::inspectAll instead.
+ */
+function inspect_all($promises)
+{
+    return Utils::inspectAll($promises);
+}
+
+/**
+ * Waits on all of the provided promises and returns the fulfilled values.
+ *
+ * Returns an array that contains the value of each promise (in the same order
+ * the promises were provided). An exception is thrown if any of the promises
+ * are rejected.
+ *
+ * @param iterable<PromiseInterface> $promises Iterable of PromiseInterface objects to wait on.
+ *
+ * @return array
+ *
+ * @throws \Exception on error
+ * @throws \Throwable on error in PHP >=7
+ *
+ * @deprecated unwrap will be removed in guzzlehttp/promises:2.0. Use Utils::unwrap instead.
+ */
+function unwrap($promises)
+{
+    return Utils::unwrap($promises);
+}
+
+/**
+ * Given an array of promises, return a promise that is fulfilled when all the
+ * items in the array are fulfilled.
+ *
+ * The promise's fulfillment value is an array with fulfillment values at
+ * respective positions to the original array. If any promise in the array
+ * rejects, the returned promise is rejected with the rejection reason.
+ *
+ * @param mixed $promises  Promises or values.
+ * @param bool  $recursive If true, resolves new promises that might have been added to the stack during its own resolution.
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated all will be removed in guzzlehttp/promises:2.0. Use Utils::all instead.
+ */
+function all($promises, $recursive = false)
+{
+    return Utils::all($promises, $recursive);
+}
+
+/**
+ * Initiate a competitive race between multiple promises or values (values will
+ * become immediately fulfilled promises).
+ *
+ * When count amount of promises have been fulfilled, the returned promise is
+ * fulfilled with an array that contains the fulfillment values of the winners
+ * in order of resolution.
+ *
+ * This promise is rejected with a {@see AggregateException} if the number of
+ * fulfilled promises is less than the desired $count.
+ *
+ * @param int   $count    Total number of promises.
+ * @param mixed $promises Promises or values.
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated some will be removed in guzzlehttp/promises:2.0. Use Utils::some instead.
+ */
+function some($count, $promises)
+{
+    return Utils::some($count, $promises);
+}
+
+/**
+ * Like some(), with 1 as count. However, if the promise fulfills, the
+ * fulfillment value is not an array of 1 but the value directly.
+ *
+ * @param mixed $promises Promises or values.
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated any will be removed in guzzlehttp/promises:2.0. Use Utils::any instead.
+ */
+function any($promises)
+{
+    return Utils::any($promises);
+}
+
+/**
+ * Returns a promise that is fulfilled when all of the provided promises have
+ * been fulfilled or rejected.
+ *
+ * The returned promise is fulfilled with an array of inspection state arrays.
+ *
+ * @see inspect for the inspection state array format.
+ *
+ * @param mixed $promises Promises or values.
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated settle will be removed in guzzlehttp/promises:2.0. Use Utils::settle instead.
+ */
+function settle($promises)
+{
+    return Utils::settle($promises);
+}
+
+/**
+ * Given an iterator that yields promises or values, returns a promise that is
+ * fulfilled with a null value when the iterator has been consumed or the
+ * aggregate promise has been fulfilled or rejected.
+ *
+ * $onFulfilled is a function that accepts the fulfilled value, iterator index,
+ * and the aggregate promise. The callback can invoke any necessary side
+ * effects and choose to resolve or reject the aggregate if needed.
+ *
+ * $onRejected is a function that accepts the rejection reason, iterator index,
+ * and the aggregate promise. The callback can invoke any necessary side
+ * effects and choose to resolve or reject the aggregate if needed.
+ *
+ * @param mixed    $iterable    Iterator or array to iterate over.
+ * @param callable $onFulfilled
+ * @param callable $onRejected
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated each will be removed in guzzlehttp/promises:2.0. Use Each::of instead.
+ */
+function each(
+    $iterable,
+    callable $onFulfilled = null,
+    callable $onRejected = null
+) {
+    return Each::of($iterable, $onFulfilled, $onRejected);
+}
+
+/**
+ * Like each, but only allows a certain number of outstanding promises at any
+ * given time.
+ *
+ * $concurrency may be an integer or a function that accepts the number of
+ * pending promises and returns a numeric concurrency limit value to allow for
+ * dynamic a concurrency size.
+ *
+ * @param mixed        $iterable
+ * @param int|callable $concurrency
+ * @param callable     $onFulfilled
+ * @param callable     $onRejected
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated each_limit will be removed in guzzlehttp/promises:2.0. Use Each::ofLimit instead.
+ */
+function each_limit(
+    $iterable,
+    $concurrency,
+    callable $onFulfilled = null,
+    callable $onRejected = null
+) {
+    return Each::ofLimit($iterable, $concurrency, $onFulfilled, $onRejected);
+}
+
+/**
+ * Like each_limit, but ensures that no promise in the given $iterable argument
+ * is rejected. If any promise is rejected, then the aggregate promise is
+ * rejected with the encountered rejection.
+ *
+ * @param mixed        $iterable
+ * @param int|callable $concurrency
+ * @param callable     $onFulfilled
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated each_limit_all will be removed in guzzlehttp/promises:2.0. Use Each::ofLimitAll instead.
+ */
+function each_limit_all(
+    $iterable,
+    $concurrency,
+    callable $onFulfilled = null
+) {
+    return Each::ofLimitAll($iterable, $concurrency, $onFulfilled);
+}
+
+/**
+ * Returns true if a promise is fulfilled.
+ *
+ * @return bool
+ *
+ * @deprecated is_fulfilled will be removed in guzzlehttp/promises:2.0. Use Is::fulfilled instead.
+ */
+function is_fulfilled(PromiseInterface $promise)
+{
+    return Is::fulfilled($promise);
+}
+
+/**
+ * Returns true if a promise is rejected.
+ *
+ * @return bool
+ *
+ * @deprecated is_rejected will be removed in guzzlehttp/promises:2.0. Use Is::rejected instead.
+ */
+function is_rejected(PromiseInterface $promise)
+{
+    return Is::rejected($promise);
+}
+
+/**
+ * Returns true if a promise is fulfilled or rejected.
+ *
+ * @return bool
+ *
+ * @deprecated is_settled will be removed in guzzlehttp/promises:2.0. Use Is::settled instead.
+ */
+function is_settled(PromiseInterface $promise)
+{
+    return Is::settled($promise);
+}
+
+/**
+ * Create a new coroutine.
+ *
+ * @see Coroutine
+ *
+ * @return PromiseInterface
+ *
+ * @deprecated coroutine will be removed in guzzlehttp/promises:2.0. Use Coroutine::of instead.
+ */
+function coroutine(callable $generatorFn)
+{
+    return Coroutine::of($generatorFn);
+}

vendor/guzzlehttp/promises/src/functions_include.php

@@ -0,0 +1,6 @@
+<?php
+
+// Don't redefine the functions if included multiple times.
+if (!function_exists('GuzzleHttp\Promise\promise_for')) {
+    require __DIR__ . '/functions.php';
+}

vendor/guzzlehttp/psr7/CHANGELOG.md

@@ -0,0 +1,326 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Unreleased
+
+## 2.1.0 - 2021-10-06
+
+### Changed
+
+- Attempting to create a `Uri` object from a malformed URI will no longer throw a generic
+  `InvalidArgumentException`, but rather a `MalformedUriException`, which inherits from the former
+  for backwards compatibility. Callers relying on the exception being thrown to detect invalid
+  URIs should catch the new exception.
+
+### Fixed
+
+- Return `null` in caching stream size if remote size is `null`
+
+## 2.0.0 - 2021-06-30
+
+Identical to the RC release.
+
+## 2.0.0@RC-1 - 2021-04-29
+
+### Fixed
+
+- Handle possibly unset `url` in `stream_get_meta_data`
+
+## 2.0.0@beta-1 - 2021-03-21
+
+### Added
+
+- PSR-17 factories
+- Made classes final
+- PHP7 type hints
+
+### Changed
+
+- When building a query string, booleans are represented as 1 and 0.
+
+### Removed
+
+- PHP < 7.2 support
+- All functions in the Guzzle\Psr7 namespace
+
+## 1.8.1 - 2021-03-21
+
+### Fixed
+
+- Issue parsing IPv6 URLs
+- Issue modifying ServerRequest lost all its attributes
+
+## 1.8.0 - 2021-03-21
+
+### Added
+
+- Locale independent URL parsing
+- Most classes got a `@final` annotation to prepare for 2.0
+
+### Fixed
+
+- Issue when creating stream from `php://input` and curl-ext is not installed
+- Broken `Utils::tryFopen()` on PHP 8
+
+## 1.7.0 - 2020-09-30
+
+### Added
+
+- Replaced functions by static methods
+
+### Fixed
+
+- Converting a non-seekable stream to a string
+- Handle multiple Set-Cookie correctly
+- Ignore array keys in header values when merging
+- Allow multibyte characters to be parsed in `Message:bodySummary()`
+
+### Changed
+
+- Restored partial HHVM 3 support
+
+
+## [1.6.1] - 2019-07-02
+
+### Fixed
+
+- Accept null and bool header values again
+
+
+## [1.6.0] - 2019-06-30
+
+### Added
+
+- Allowed version `^3.0` of `ralouphie/getallheaders` dependency (#244)
+- Added MIME type for WEBP image format (#246)
+- Added more validation of values according to PSR-7 and RFC standards, e.g. status code range (#250, #272)
+
+### Changed
+
+- Tests don't pass with HHVM 4.0, so HHVM support got dropped. Other libraries like composer have done the same. (#262)
+- Accept port number 0 to be valid (#270)
+
+### Fixed
+
+- Fixed subsequent reads from `php://input` in ServerRequest (#247)
+- Fixed readable/writable detection for certain stream modes (#248)
+- Fixed encoding of special characters in the `userInfo` component of an URI (#253)
+
+
+## [1.5.2] - 2018-12-04
+
+### Fixed
+
+- Check body size when getting the message summary
+
+
+## [1.5.1] - 2018-12-04
+
+### Fixed
+
+- Get the summary of a body only if it is readable
+
+
+## [1.5.0] - 2018-12-03
+
+### Added
+
+- Response first-line to response string exception (fixes #145)
+- A test for #129 behavior
+- `get_message_body_summary` function in order to get the message summary
+- `3gp` and `mkv` mime types
+
+### Changed
+
+- Clarify exception message when stream is detached
+
+### Deprecated
+
+- Deprecated parsing folded header lines as per RFC 7230
+
+### Fixed
+
+- Fix `AppendStream::detach` to not close streams
+- `InflateStream` preserves `isSeekable` attribute of the underlying stream
+- `ServerRequest::getUriFromGlobals` to support URLs in query parameters
+
+
+Several other fixes and improvements.
+
+
+## [1.4.2] - 2017-03-20
+
+### Fixed
+
+- Reverted BC break to `Uri::resolve` and `Uri::removeDotSegments` by removing
+  calls to `trigger_error` when deprecated methods are invoked.
+
+
+## [1.4.1] - 2017-02-27
+
+### Added
+
+- Rriggering of silenced deprecation warnings.
+
+### Fixed
+
+- Reverted BC break by reintroducing behavior to automagically fix a URI with a
+  relative path and an authority by adding a leading slash to the path. It's only
+  deprecated now.
+
+
+## [1.4.0] - 2017-02-21
+
+### Added
+
+- Added common URI utility methods based on RFC 3986 (see documentation in the readme):
+  - `Uri::isDefaultPort`
+  - `Uri::isAbsolute`
+  - `Uri::isNetworkPathReference`
+  - `Uri::isAbsolutePathReference`
+  - `Uri::isRelativePathReference`
+  - `Uri::isSameDocumentReference`
+  - `Uri::composeComponents`
+  - `UriNormalizer::normalize`
+  - `UriNormalizer::isEquivalent`
+  - `UriResolver::relativize`
+
+### Changed
+
+- Ensure `ServerRequest::getUriFromGlobals` returns a URI in absolute form.
+- Allow `parse_response` to parse a response without delimiting space and reason.
+- Ensure each URI modification results in a valid URI according to PSR-7 discussions.
+  Invalid modifications will throw an exception instead of returning a wrong URI or
+  doing some magic.
+  - `(new Uri)->withPath('foo')->withHost('example.com')` will throw an exception
+    because the path of a URI with an authority must start with a slash "/" or be empty
+  - `(new Uri())->withScheme('http')` will return `'http://localhost'`
+
+### Deprecated
+
+- `Uri::resolve` in favor of `UriResolver::resolve`
+- `Uri::removeDotSegments` in favor of `UriResolver::removeDotSegments`
+
+### Fixed
+
+- `Stream::read` when length parameter <= 0.
+- `copy_to_stream` reads bytes in chunks instead of `maxLen` into memory.
+- `ServerRequest::getUriFromGlobals` when `Host` header contains port.
+- Compatibility of URIs with `file` scheme and empty host.
+
+
+## [1.3.1] - 2016-06-25
+
+### Fixed
+
+- `Uri::__toString` for network path references, e.g. `//example.org`.
+- Missing lowercase normalization for host.
+- Handling of URI components in case they are `'0'` in a lot of places,
+  e.g. as a user info password.
+- `Uri::withAddedHeader` to correctly merge headers with different case.
+- Trimming of header values in `Uri::withAddedHeader`. Header values may
+  be surrounded by whitespace which should be ignored according to RFC 7230
+  Section 3.2.4. This does not apply to header names.
+- `Uri::withAddedHeader` with an array of header values.
+- `Uri::resolve` when base path has no slash and handling of fragment.
+- Handling of encoding in `Uri::with(out)QueryValue` so one can pass the
+  key/value both in encoded as well as decoded form to those methods. This is
+  consistent with withPath, withQuery etc.
+- `ServerRequest::withoutAttribute` when attribute value is null.
+
+
+## [1.3.0] - 2016-04-13
+
+### Added
+
+- Remaining interfaces needed for full PSR7 compatibility
+  (ServerRequestInterface, UploadedFileInterface, etc.).
+- Support for stream_for from scalars.
+
+### Changed
+
+- Can now extend Uri.
+
+### Fixed
+- A bug in validating request methods by making it more permissive.
+
+
+## [1.2.3] - 2016-02-18
+
+### Fixed
+
+- Support in `GuzzleHttp\Psr7\CachingStream` for seeking forward on remote
+  streams, which can sometimes return fewer bytes than requested with `fread`.
+- Handling of gzipped responses with FNAME headers.
+
+
+## [1.2.2] - 2016-01-22
+
+### Added
+
+- Support for URIs without any authority.
+- Support for HTTP 451 'Unavailable For Legal Reasons.'
+- Support for using '0' as a filename.
+- Support for including non-standard ports in Host headers.
+
+
+## [1.2.1] - 2015-11-02
+
+### Changes
+
+- Now supporting negative offsets when seeking to SEEK_END.
+
+
+## [1.2.0] - 2015-08-15
+
+### Changed
+
+- Body as `"0"` is now properly added to a response.
+- Now allowing forward seeking in CachingStream.
+- Now properly parsing HTTP requests that contain proxy targets in
+  `parse_request`.
+- functions.php is now conditionally required.
+- user-info is no longer dropped when resolving URIs.
+
+
+## [1.1.0] - 2015-06-24
+
+### Changed
+
+- URIs can now be relative.
+- `multipart/form-data` headers are now overridden case-insensitively.
+- URI paths no longer encode the following characters because they are allowed
+  in URIs: "(", ")", "*", "!", "'"
+- A port is no longer added to a URI when the scheme is missing and no port is
+  present.
+
+
+## 1.0.0 - 2015-05-19
+
+Initial release.
+
+Currently unsupported:
+
+- `Psr\Http\Message\ServerRequestInterface`
+- `Psr\Http\Message\UploadedFileInterface`
+
+
+
+[1.6.0]: https://github.com/guzzle/psr7/compare/1.5.2...1.6.0
+[1.5.2]: https://github.com/guzzle/psr7/compare/1.5.1...1.5.2
+[1.5.1]: https://github.com/guzzle/psr7/compare/1.5.0...1.5.1
+[1.5.0]: https://github.com/guzzle/psr7/compare/1.4.2...1.5.0
+[1.4.2]: https://github.com/guzzle/psr7/compare/1.4.1...1.4.2
+[1.4.1]: https://github.com/guzzle/psr7/compare/1.4.0...1.4.1
+[1.4.0]: https://github.com/guzzle/psr7/compare/1.3.1...1.4.0
+[1.3.1]: https://github.com/guzzle/psr7/compare/1.3.0...1.3.1
+[1.3.0]: https://github.com/guzzle/psr7/compare/1.2.3...1.3.0
+[1.2.3]: https://github.com/guzzle/psr7/compare/1.2.2...1.2.3
+[1.2.2]: https://github.com/guzzle/psr7/compare/1.2.1...1.2.2
+[1.2.1]: https://github.com/guzzle/psr7/compare/1.2.0...1.2.1
+[1.2.0]: https://github.com/guzzle/psr7/compare/1.1.0...1.2.0
+[1.1.0]: https://github.com/guzzle/psr7/compare/1.0.0...1.1.0

vendor/guzzlehttp/psr7/LICENSE

@@ -0,0 +1,26 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Michael Dowling <mtdowling@gmail.com>
+Copyright (c) 2015 Márk Sági-Kazár <mark.sagikazar@gmail.com>
+Copyright (c) 2015 Graham Campbell <hello@gjcampbell.co.uk>
+Copyright (c) 2016 Tobias Schultze <webmaster@tubo-world.de>
+Copyright (c) 2016 George Mponos <gmponos@gmail.com>
+Copyright (c) 2018 Tobias Nyholm <tobias.nyholm@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/guzzlehttp/psr7/README.md

@@ -0,0 +1,823 @@
+# PSR-7 Message Implementation
+
+This repository contains a full [PSR-7](http://www.php-fig.org/psr/psr-7/)
+message implementation, several stream decorators, and some helpful
+functionality like query string parsing.
+
+![CI](https://github.com/guzzle/psr7/workflows/CI/badge.svg)
+![Static analysis](https://github.com/guzzle/psr7/workflows/Static%20analysis/badge.svg)
+
+
+# Stream implementation
+
+This package comes with a number of stream implementations and stream
+decorators.
+
+
+## AppendStream
+
+`GuzzleHttp\Psr7\AppendStream`
+
+Reads from multiple streams, one after the other.
+
+```php
+use GuzzleHttp\Psr7;
+
+$a = Psr7\Utils::streamFor('abc, ');
+$b = Psr7\Utils::streamFor('123.');
+$composed = new Psr7\AppendStream([$a, $b]);
+
+$composed->addStream(Psr7\Utils::streamFor(' Above all listen to me'));
+
+echo $composed; // abc, 123. Above all listen to me.
+```
+
+
+## BufferStream
+
+`GuzzleHttp\Psr7\BufferStream`
+
+Provides a buffer stream that can be written to fill a buffer, and read
+from to remove bytes from the buffer.
+
+This stream returns a "hwm" metadata value that tells upstream consumers
+what the configured high water mark of the stream is, or the maximum
+preferred size of the buffer.
+
+```php
+use GuzzleHttp\Psr7;
+
+// When more than 1024 bytes are in the buffer, it will begin returning
+// false to writes. This is an indication that writers should slow down.
+$buffer = new Psr7\BufferStream(1024);
+```
+
+
+## CachingStream
+
+The CachingStream is used to allow seeking over previously read bytes on
+non-seekable streams. This can be useful when transferring a non-seekable
+entity body fails due to needing to rewind the stream (for example, resulting
+from a redirect). Data that is read from the remote stream will be buffered in
+a PHP temp stream so that previously read bytes are cached first in memory,
+then on disk.
+
+```php
+use GuzzleHttp\Psr7;
+
+$original = Psr7\Utils::streamFor(fopen('http://www.google.com', 'r'));
+$stream = new Psr7\CachingStream($original);
+
+$stream->read(1024);
+echo $stream->tell();
+// 1024
+
+$stream->seek(0);
+echo $stream->tell();
+// 0
+```
+
+
+## DroppingStream
+
+`GuzzleHttp\Psr7\DroppingStream`
+
+Stream decorator that begins dropping data once the size of the underlying
+stream becomes too full.
+
+```php
+use GuzzleHttp\Psr7;
+
+// Create an empty stream
+$stream = Psr7\Utils::streamFor();
+
+// Start dropping data when the stream has more than 10 bytes
+$dropping = new Psr7\DroppingStream($stream, 10);
+
+$dropping->write('01234567890123456789');
+echo $stream; // 0123456789
+```
+
+
+## FnStream
+
+`GuzzleHttp\Psr7\FnStream`
+
+Compose stream implementations based on a hash of functions.
+
+Allows for easy testing and extension of a provided stream without needing
+to create a concrete class for a simple extension point.
+
+```php
+
+use GuzzleHttp\Psr7;
+
+$stream = Psr7\Utils::streamFor('hi');
+$fnStream = Psr7\FnStream::decorate($stream, [
+    'rewind' => function () use ($stream) {
+        echo 'About to rewind - ';
+        $stream->rewind();
+        echo 'rewound!';
+    }
+]);
+
+$fnStream->rewind();
+// Outputs: About to rewind - rewound!
+```
+
+
+## InflateStream
+
+`GuzzleHttp\Psr7\InflateStream`
+
+Uses PHP's zlib.inflate filter to inflate zlib (HTTP deflate, RFC1950) or gzipped (RFC1952) content.
+
+This stream decorator converts the provided stream to a PHP stream resource,
+then appends the zlib.inflate filter. The stream is then converted back
+to a Guzzle stream resource to be used as a Guzzle stream.
+
+
+## LazyOpenStream
+
+`GuzzleHttp\Psr7\LazyOpenStream`
+
+Lazily reads or writes to a file that is opened only after an IO operation
+take place on the stream.
+
+```php
+use GuzzleHttp\Psr7;
+
+$stream = new Psr7\LazyOpenStream('/path/to/file', 'r');
+// The file has not yet been opened...
+
+echo $stream->read(10);
+// The file is opened and read from only when needed.
+```
+
+
+## LimitStream
+
+`GuzzleHttp\Psr7\LimitStream`
+
+LimitStream can be used to read a subset or slice of an existing stream object.
+This can be useful for breaking a large file into smaller pieces to be sent in
+chunks (e.g. Amazon S3's multipart upload API).
+
+```php
+use GuzzleHttp\Psr7;
+
+$original = Psr7\Utils::streamFor(fopen('/tmp/test.txt', 'r+'));
+echo $original->getSize();
+// >>> 1048576
+
+// Limit the size of the body to 1024 bytes and start reading from byte 2048
+$stream = new Psr7\LimitStream($original, 1024, 2048);
+echo $stream->getSize();
+// >>> 1024
+echo $stream->tell();
+// >>> 0
+```
+
+
+## MultipartStream
+
+`GuzzleHttp\Psr7\MultipartStream`
+
+Stream that when read returns bytes for a streaming multipart or
+multipart/form-data stream.
+
+
+## NoSeekStream
+
+`GuzzleHttp\Psr7\NoSeekStream`
+
+NoSeekStream wraps a stream and does not allow seeking.
+
+```php
+use GuzzleHttp\Psr7;
+
+$original = Psr7\Utils::streamFor('foo');
+$noSeek = new Psr7\NoSeekStream($original);
+
+echo $noSeek->read(3);
+// foo
+var_export($noSeek->isSeekable());
+// false
+$noSeek->seek(0);
+var_export($noSeek->read(3));
+// NULL
+```
+
+
+## PumpStream
+
+`GuzzleHttp\Psr7\PumpStream`
+
+Provides a read only stream that pumps data from a PHP callable.
+
+When invoking the provided callable, the PumpStream will pass the amount of
+data requested to read to the callable. The callable can choose to ignore
+this value and return fewer or more bytes than requested. Any extra data
+returned by the provided callable is buffered internally until drained using
+the read() function of the PumpStream. The provided callable MUST return
+false when there is no more data to read.
+
+
+## Implementing stream decorators
+
+Creating a stream decorator is very easy thanks to the
+`GuzzleHttp\Psr7\StreamDecoratorTrait`. This trait provides methods that
+implement `Psr\Http\Message\StreamInterface` by proxying to an underlying
+stream. Just `use` the `StreamDecoratorTrait` and implement your custom
+methods.
+
+For example, let's say we wanted to call a specific function each time the last
+byte is read from a stream. This could be implemented by overriding the
+`read()` method.
+
+```php
+use Psr\Http\Message\StreamInterface;
+use GuzzleHttp\Psr7\StreamDecoratorTrait;
+
+class EofCallbackStream implements StreamInterface
+{
+    use StreamDecoratorTrait;
+
+    private $callback;
+
+    public function __construct(StreamInterface $stream, callable $cb)
+    {
+        $this->stream = $stream;
+        $this->callback = $cb;
+    }
+
+    public function read($length)
+    {
+        $result = $this->stream->read($length);
+
+        // Invoke the callback when EOF is hit.
+        if ($this->eof()) {
+            call_user_func($this->callback);
+        }
+
+        return $result;
+    }
+}
+```
+
+This decorator could be added to any existing stream and used like so:
+
+```php
+use GuzzleHttp\Psr7;
+
+$original = Psr7\Utils::streamFor('foo');
+
+$eofStream = new EofCallbackStream($original, function () {
+    echo 'EOF!';
+});
+
+$eofStream->read(2);
+$eofStream->read(1);
+// echoes "EOF!"
+$eofStream->seek(0);
+$eofStream->read(3);
+// echoes "EOF!"
+```
+
+
+## PHP StreamWrapper
+
+You can use the `GuzzleHttp\Psr7\StreamWrapper` class if you need to use a
+PSR-7 stream as a PHP stream resource.
+
+Use the `GuzzleHttp\Psr7\StreamWrapper::getResource()` method to create a PHP
+stream from a PSR-7 stream.
+
+```php
+use GuzzleHttp\Psr7\StreamWrapper;
+
+$stream = GuzzleHttp\Psr7\Utils::streamFor('hello!');
+$resource = StreamWrapper::getResource($stream);
+echo fread($resource, 6); // outputs hello!
+```
+
+
+# Static API
+
+There are various static methods available under the `GuzzleHttp\Psr7` namespace.
+
+
+## `GuzzleHttp\Psr7\Message::toString`
+
+`public static function toString(MessageInterface $message): string`
+
+Returns the string representation of an HTTP message.
+
+```php
+$request = new GuzzleHttp\Psr7\Request('GET', 'http://example.com');
+echo GuzzleHttp\Psr7\Message::toString($request);
+```
+
+
+## `GuzzleHttp\Psr7\Message::bodySummary`
+
+`public static function bodySummary(MessageInterface $message, int $truncateAt = 120): string|null`
+
+Get a short summary of the message body.
+
+Will return `null` if the response is not printable.
+
+
+## `GuzzleHttp\Psr7\Message::rewindBody`
+
+`public static function rewindBody(MessageInterface $message): void`
+
+Attempts to rewind a message body and throws an exception on failure.
+
+The body of the message will only be rewound if a call to `tell()`
+returns a value other than `0`.
+
+
+## `GuzzleHttp\Psr7\Message::parseMessage`
+
+`public static function parseMessage(string $message): array`
+
+Parses an HTTP message into an associative array.
+
+The array contains the "start-line" key containing the start line of
+the message, "headers" key containing an associative array of header
+array values, and a "body" key containing the body of the message.
+
+
+## `GuzzleHttp\Psr7\Message::parseRequestUri`
+
+`public static function parseRequestUri(string $path, array $headers): string`
+
+Constructs a URI for an HTTP request message.
+
+
+## `GuzzleHttp\Psr7\Message::parseRequest`
+
+`public static function parseRequest(string $message): Request`
+
+Parses a request message string into a request object.
+
+
+## `GuzzleHttp\Psr7\Message::parseResponse`
+
+`public static function parseResponse(string $message): Response`
+
+Parses a response message string into a response object.
+
+
+## `GuzzleHttp\Psr7\Header::parse`
+
+`public static function parse(string|array $header): array`
+
+Parse an array of header values containing ";" separated data into an
+array of associative arrays representing the header key value pair data
+of the header. When a parameter does not contain a value, but just
+contains a key, this function will inject a key with a '' string value.
+
+
+## `GuzzleHttp\Psr7\Header::normalize`
+
+`public static function normalize(string|array $header): array`
+
+Converts an array of header values that may contain comma separated
+headers into an array of headers with no comma separated values.
+
+
+## `GuzzleHttp\Psr7\Query::parse`
+
+`public static function parse(string $str, int|bool $urlEncoding = true): array`
+
+Parse a query string into an associative array.
+
+If multiple values are found for the same key, the value of that key
+value pair will become an array. This function does not parse nested
+PHP style arrays into an associative array (e.g., `foo[a]=1&foo[b]=2`
+will be parsed into `['foo[a]' => '1', 'foo[b]' => '2'])`.
+
+
+## `GuzzleHttp\Psr7\Query::build`
+
+`public static function build(array $params, int|false $encoding = PHP_QUERY_RFC3986): string`
+
+Build a query string from an array of key value pairs.
+
+This function can use the return value of `parse()` to build a query
+string. This function does not modify the provided keys when an array is
+encountered (like `http_build_query()` would).
+
+
+## `GuzzleHttp\Psr7\Utils::caselessRemove`
+
+`public static function caselessRemove(iterable<string> $keys, $keys, array $data): array`
+
+Remove the items given by the keys, case insensitively from the data.
+
+
+## `GuzzleHttp\Psr7\Utils::copyToStream`
+
+`public static function copyToStream(StreamInterface $source, StreamInterface $dest, int $maxLen = -1): void`
+
+Copy the contents of a stream into another stream until the given number
+of bytes have been read.
+
+
+## `GuzzleHttp\Psr7\Utils::copyToString`
+
+`public static function copyToString(StreamInterface $stream, int $maxLen = -1): string`
+
+Copy the contents of a stream into a string until the given number of
+bytes have been read.
+
+
+## `GuzzleHttp\Psr7\Utils::hash`
+
+`public static function hash(StreamInterface $stream, string $algo, bool $rawOutput = false): string`
+
+Calculate a hash of a stream.
+
+This method reads the entire stream to calculate a rolling hash, based on
+PHP's `hash_init` functions.
+
+
+## `GuzzleHttp\Psr7\Utils::modifyRequest`
+
+`public static function modifyRequest(RequestInterface $request, array $changes): RequestInterface`
+
+Clone and modify a request with the given changes.
+
+This method is useful for reducing the number of clones needed to mutate
+a message.
+
+- method: (string) Changes the HTTP method.
+- set_headers: (array) Sets the given headers.
+- remove_headers: (array) Remove the given headers.
+- body: (mixed) Sets the given body.
+- uri: (UriInterface) Set the URI.
+- query: (string) Set the query string value of the URI.
+- version: (string) Set the protocol version.
+
+
+## `GuzzleHttp\Psr7\Utils::readLine`
+
+`public static function readLine(StreamInterface $stream, int $maxLength = null): string`
+
+Read a line from the stream up to the maximum allowed buffer length.
+
+
+## `GuzzleHttp\Psr7\Utils::streamFor`
+
+`public static function streamFor(resource|string|null|int|float|bool|StreamInterface|callable|\Iterator $resource = '', array $options = []): StreamInterface`
+
+Create a new stream based on the input type.
+
+Options is an associative array that can contain the following keys:
+
+- metadata: Array of custom metadata.
+- size: Size of the stream.
+
+This method accepts the following `$resource` types:
+
+- `Psr\Http\Message\StreamInterface`: Returns the value as-is.
+- `string`: Creates a stream object that uses the given string as the contents.
+- `resource`: Creates a stream object that wraps the given PHP stream resource.
+- `Iterator`: If the provided value implements `Iterator`, then a read-only
+  stream object will be created that wraps the given iterable. Each time the
+  stream is read from, data from the iterator will fill a buffer and will be
+  continuously called until the buffer is equal to the requested read size.
+  Subsequent read calls will first read from the buffer and then call `next`
+  on the underlying iterator until it is exhausted.
+- `object` with `__toString()`: If the object has the `__toString()` method,
+  the object will be cast to a string and then a stream will be returned that
+  uses the string value.
+- `NULL`: When `null` is passed, an empty stream object is returned.
+- `callable` When a callable is passed, a read-only stream object will be
+  created that invokes the given callable. The callable is invoked with the
+  number of suggested bytes to read. The callable can return any number of
+  bytes, but MUST return `false` when there is no more data to return. The
+  stream object that wraps the callable will invoke the callable until the
+  number of requested bytes are available. Any additional bytes will be
+  buffered and used in subsequent reads.
+
+```php
+$stream = GuzzleHttp\Psr7\Utils::streamFor('foo');
+$stream = GuzzleHttp\Psr7\Utils::streamFor(fopen('/path/to/file', 'r'));
+
+$generator = function ($bytes) {
+    for ($i = 0; $i < $bytes; $i++) {
+        yield ' ';
+    }
+}
+
+$stream = GuzzleHttp\Psr7\Utils::streamFor($generator(100));
+```
+
+
+## `GuzzleHttp\Psr7\Utils::tryFopen`
+
+`public static function tryFopen(string $filename, string $mode): resource`
+
+Safely opens a PHP stream resource using a filename.
+
+When fopen fails, PHP normally raises a warning. This function adds an
+error handler that checks for errors and throws an exception instead.
+
+
+## `GuzzleHttp\Psr7\Utils::uriFor`
+
+`public static function uriFor(string|UriInterface $uri): UriInterface`
+
+Returns a UriInterface for the given value.
+
+This function accepts a string or UriInterface and returns a
+UriInterface for the given value. If the value is already a
+UriInterface, it is returned as-is.
+
+
+## `GuzzleHttp\Psr7\MimeType::fromFilename`
+
+`public static function fromFilename(string $filename): string|null`
+
+Determines the mimetype of a file by looking at its extension.
+
+
+## `GuzzleHttp\Psr7\MimeType::fromExtension`
+
+`public static function fromExtension(string $extension): string|null`
+
+Maps a file extensions to a mimetype.
+
+
+## Upgrading from Function API
+
+The static API was first introduced in 1.7.0, in order to mitigate problems with functions conflicting between global and local copies of the package. The function API was removed in 2.0.0. A migration table has been provided here for your convenience:
+
+| Original Function | Replacement Method |
+|----------------|----------------|
+| `str` | `Message::toString` |
+| `uri_for` | `Utils::uriFor` |
+| `stream_for` | `Utils::streamFor` |
+| `parse_header` | `Header::parse` |
+| `normalize_header` | `Header::normalize` |
+| `modify_request` | `Utils::modifyRequest` |
+| `rewind_body` | `Message::rewindBody` |
+| `try_fopen` | `Utils::tryFopen` |
+| `copy_to_string` | `Utils::copyToString` |
+| `copy_to_stream` | `Utils::copyToStream` |
+| `hash` | `Utils::hash` |
+| `readline` | `Utils::readLine` |
+| `parse_request` | `Message::parseRequest` |
+| `parse_response` | `Message::parseResponse` |
+| `parse_query` | `Query::parse` |
+| `build_query` | `Query::build` |
+| `mimetype_from_filename` | `MimeType::fromFilename` |
+| `mimetype_from_extension` | `MimeType::fromExtension` |
+| `_parse_message` | `Message::parseMessage` |
+| `_parse_request_uri` | `Message::parseRequestUri` |
+| `get_message_body_summary` | `Message::bodySummary` |
+| `_caseless_remove` | `Utils::caselessRemove` |
+
+
+# Additional URI Methods
+
+Aside from the standard `Psr\Http\Message\UriInterface` implementation in form of the `GuzzleHttp\Psr7\Uri` class,
+this library also provides additional functionality when working with URIs as static methods.
+
+## URI Types
+
+An instance of `Psr\Http\Message\UriInterface` can either be an absolute URI or a relative reference.
+An absolute URI has a scheme. A relative reference is used to express a URI relative to another URI,
+the base URI. Relative references can be divided into several forms according to
+[RFC 3986 Section 4.2](https://tools.ietf.org/html/rfc3986#section-4.2):
+
+- network-path references, e.g. `//example.com/path`
+- absolute-path references, e.g. `/path`
+- relative-path references, e.g. `subpath`
+
+The following methods can be used to identify the type of the URI.
+
+### `GuzzleHttp\Psr7\Uri::isAbsolute`
+
+`public static function isAbsolute(UriInterface $uri): bool`
+
+Whether the URI is absolute, i.e. it has a scheme.
+
+### `GuzzleHttp\Psr7\Uri::isNetworkPathReference`
+
+`public static function isNetworkPathReference(UriInterface $uri): bool`
+
+Whether the URI is a network-path reference. A relative reference that begins with two slash characters is
+termed an network-path reference.
+
+### `GuzzleHttp\Psr7\Uri::isAbsolutePathReference`
+
+`public static function isAbsolutePathReference(UriInterface $uri): bool`
+
+Whether the URI is a absolute-path reference. A relative reference that begins with a single slash character is
+termed an absolute-path reference.
+
+### `GuzzleHttp\Psr7\Uri::isRelativePathReference`
+
+`public static function isRelativePathReference(UriInterface $uri): bool`
+
+Whether the URI is a relative-path reference. A relative reference that does not begin with a slash character is
+termed a relative-path reference.
+
+### `GuzzleHttp\Psr7\Uri::isSameDocumentReference`
+
+`public static function isSameDocumentReference(UriInterface $uri, UriInterface $base = null): bool`
+
+Whether the URI is a same-document reference. A same-document reference refers to a URI that is, aside from its
+fragment component, identical to the base URI. When no base URI is given, only an empty URI reference
+(apart from its fragment) is considered a same-document reference.
+
+## URI Components
+
+Additional methods to work with URI components.
+
+### `GuzzleHttp\Psr7\Uri::isDefaultPort`
+
+`public static function isDefaultPort(UriInterface $uri): bool`
+
+Whether the URI has the default port of the current scheme. `Psr\Http\Message\UriInterface::getPort` may return null
+or the standard port. This method can be used independently of the implementation.
+
+### `GuzzleHttp\Psr7\Uri::composeComponents`
+
+`public static function composeComponents($scheme, $authority, $path, $query, $fragment): string`
+
+Composes a URI reference string from its various components according to
+[RFC 3986 Section 5.3](https://tools.ietf.org/html/rfc3986#section-5.3). Usually this method does not need to be called
+manually but instead is used indirectly via `Psr\Http\Message\UriInterface::__toString`.
+
+### `GuzzleHttp\Psr7\Uri::fromParts`
+
+`public static function fromParts(array $parts): UriInterface`
+
+Creates a URI from a hash of [`parse_url`](http://php.net/manual/en/function.parse-url.php) components.
+
+
+### `GuzzleHttp\Psr7\Uri::withQueryValue`
+
+`public static function withQueryValue(UriInterface $uri, $key, $value): UriInterface`
+
+Creates a new URI with a specific query string value. Any existing query string values that exactly match the
+provided key are removed and replaced with the given key value pair. A value of null will set the query string
+key without a value, e.g. "key" instead of "key=value".
+
+### `GuzzleHttp\Psr7\Uri::withQueryValues`
+
+`public static function withQueryValues(UriInterface $uri, array $keyValueArray): UriInterface`
+
+Creates a new URI with multiple query string values. It has the same behavior as `withQueryValue()` but for an
+associative array of key => value.
+
+### `GuzzleHttp\Psr7\Uri::withoutQueryValue`
+
+`public static function withoutQueryValue(UriInterface $uri, $key): UriInterface`
+
+Creates a new URI with a specific query string value removed. Any existing query string values that exactly match the
+provided key are removed.
+
+## Reference Resolution
+
+`GuzzleHttp\Psr7\UriResolver` provides methods to resolve a URI reference in the context of a base URI according
+to [RFC 3986 Section 5](https://tools.ietf.org/html/rfc3986#section-5). This is for example also what web browsers
+do when resolving a link in a website based on the current request URI.
+
+### `GuzzleHttp\Psr7\UriResolver::resolve`
+
+`public static function resolve(UriInterface $base, UriInterface $rel): UriInterface`
+
+Converts the relative URI into a new URI that is resolved against the base URI.
+
+### `GuzzleHttp\Psr7\UriResolver::removeDotSegments`
+
+`public static function removeDotSegments(string $path): string`
+
+Removes dot segments from a path and returns the new path according to
+[RFC 3986 Section 5.2.4](https://tools.ietf.org/html/rfc3986#section-5.2.4).
+
+### `GuzzleHttp\Psr7\UriResolver::relativize`
+
+`public static function relativize(UriInterface $base, UriInterface $target): UriInterface`
+
+Returns the target URI as a relative reference from the base URI. This method is the counterpart to resolve():
+
+```php
+(string) $target === (string) UriResolver::resolve($base, UriResolver::relativize($base, $target))
+```
+
+One use-case is to use the current request URI as base URI and then generate relative links in your documents
+to reduce the document size or offer self-contained downloadable document archives.
+
+```php
+$base = new Uri('http://example.com/a/b/');
+echo UriResolver::relativize($base, new Uri('http://example.com/a/b/c'));  // prints 'c'.
+echo UriResolver::relativize($base, new Uri('http://example.com/a/x/y'));  // prints '../x/y'.
+echo UriResolver::relativize($base, new Uri('http://example.com/a/b/?q')); // prints '?q'.
+echo UriResolver::relativize($base, new Uri('http://example.org/a/b/'));   // prints '//example.org/a/b/'.
+```
+
+## Normalization and Comparison
+
+`GuzzleHttp\Psr7\UriNormalizer` provides methods to normalize and compare URIs according to
+[RFC 3986 Section 6](https://tools.ietf.org/html/rfc3986#section-6).
+
+### `GuzzleHttp\Psr7\UriNormalizer::normalize`
+
+`public static function normalize(UriInterface $uri, $flags = self::PRESERVING_NORMALIZATIONS): UriInterface`
+
+Returns a normalized URI. The scheme and host component are already normalized to lowercase per PSR-7 UriInterface.
+This methods adds additional normalizations that can be configured with the `$flags` parameter which is a bitmask
+of normalizations to apply. The following normalizations are available:
+
+- `UriNormalizer::PRESERVING_NORMALIZATIONS`
+
+    Default normalizations which only include the ones that preserve semantics.
+
+- `UriNormalizer::CAPITALIZE_PERCENT_ENCODING`
+
+    All letters within a percent-encoding triplet (e.g., "%3A") are case-insensitive, and should be capitalized.
+
+    Example: `http://example.org/a%c2%b1b` → `http://example.org/a%C2%B1b`
+
+- `UriNormalizer::DECODE_UNRESERVED_CHARACTERS`
+
+    Decodes percent-encoded octets of unreserved characters. For consistency, percent-encoded octets in the ranges of
+    ALPHA (%41–%5A and %61–%7A), DIGIT (%30–%39), hyphen (%2D), period (%2E), underscore (%5F), or tilde (%7E) should
+    not be created by URI producers and, when found in a URI, should be decoded to their corresponding unreserved
+    characters by URI normalizers.
+
+    Example: `http://example.org/%7Eusern%61me/` → `http://example.org/~username/`
+
+- `UriNormalizer::CONVERT_EMPTY_PATH`
+
+    Converts the empty path to "/" for http and https URIs.
+
+    Example: `http://example.org` → `http://example.org/`
+
+- `UriNormalizer::REMOVE_DEFAULT_HOST`
+
+    Removes the default host of the given URI scheme from the URI. Only the "file" scheme defines the default host
+    "localhost". All of `file:/myfile`, `file:///myfile`, and `file://localhost/myfile` are equivalent according to
+    RFC 3986.
+
+    Example: `file://localhost/myfile` → `file:///myfile`
+
+- `UriNormalizer::REMOVE_DEFAULT_PORT`
+
+    Removes the default port of the given URI scheme from the URI.
+
+    Example: `http://example.org:80/` → `http://example.org/`
+
+- `UriNormalizer::REMOVE_DOT_SEGMENTS`
+
+    Removes unnecessary dot-segments. Dot-segments in relative-path references are not removed as it would
+    change the semantics of the URI reference.
+
+    Example: `http://example.org/../a/b/../c/./d.html` → `http://example.org/a/c/d.html`
+
+- `UriNormalizer::REMOVE_DUPLICATE_SLASHES`
+
+    Paths which include two or more adjacent slashes are converted to one. Webservers usually ignore duplicate slashes
+    and treat those URIs equivalent. But in theory those URIs do not need to be equivalent. So this normalization
+    may change the semantics. Encoded slashes (%2F) are not removed.
+
+    Example: `http://example.org//foo///bar.html` → `http://example.org/foo/bar.html`
+
+- `UriNormalizer::SORT_QUERY_PARAMETERS`
+
+    Sort query parameters with their values in alphabetical order. However, the order of parameters in a URI may be
+    significant (this is not defined by the standard). So this normalization is not safe and may change the semantics
+    of the URI.
+
+    Example: `?lang=en&article=fred` → `?article=fred&lang=en`
+
+### `GuzzleHttp\Psr7\UriNormalizer::isEquivalent`
+
+`public static function isEquivalent(UriInterface $uri1, UriInterface $uri2, $normalizations = self::PRESERVING_NORMALIZATIONS): bool`
+
+Whether two URIs can be considered equivalent. Both URIs are normalized automatically before comparison with the given
+`$normalizations` bitmask. The method also accepts relative URI references and returns true when they are equivalent.
+This of course assumes they will be resolved against the same base URI. If this is not the case, determination of
+equivalence or difference of relative references does not mean anything.
+
+
+## Security
+
+If you discover a security vulnerability within this package, please send an email to security@tidelift.com. All security vulnerabilities will be promptly addressed. Please do not disclose security-related issues publicly until a fix has been announced. Please see [Security Policy](https://github.com/guzzle/psr7/security/policy) for more information.
+
+## License
+
+Guzzle is made available under the MIT License (MIT). Please see [License File](LICENSE) for more information.
+
+## For Enterprise
+
+Available as part of the Tidelift Subscription
+
+The maintainers of Guzzle and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/packagist-guzzlehttp-psr7?utm_source=packagist-guzzlehttp-psr7&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)