alltube/classes/Config.php

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<?php
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/**
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* Config class.
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*/
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namespace Alltube;
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use Alltube\Exception\ConfigException;
use Alltube\Library\Downloader;
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use Jawira\CaseConverter\CaseConverterException;
use Jean85\PrettyVersions;
use PackageVersions\Versions;
use Symfony\Component\ErrorHandler\Debug;
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use Symfony\Component\Yaml\Yaml;
use Jawira\CaseConverter\Convert;
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/**
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* Manage config parameters.
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*/
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class Config
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{
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/**
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* Singleton instance.
*
* @var Config|null
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*/
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private static $instance;
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/**
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* youtube-dl binary path.
*
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* @var string
*/
public $youtubedl = 'vendor/ytdl-org/youtube-dl/youtube_dl/__main__.py';
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/**
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* python binary path.
*
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* @var string
*/
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public $python = '/usr/bin/python';
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/**
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* youtube-dl parameters.
*
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* @var string[]
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*/
public $params = ['--no-warnings', '--ignore-errors', '--flat-playlist', '--restrict-filenames', '--no-playlist'];
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/**
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* Enable audio conversion.
*
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* @var bool
*/
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public $convert = false;
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/**
* Enable advanced conversion mode.
*
* @var bool
*/
public $convertAdvanced = false;
/**
* List of formats available in advanced conversion mode.
*
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* @var string[]
*/
public $convertAdvancedFormats = ['mp3', 'avi', 'flv', 'wav'];
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/**
* ffmpeg binary path.
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*
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* @var string
*/
public $ffmpeg = '/usr/bin/ffmpeg';
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/**
* Path to the directory that contains the phantomjs binary.
*
* @var string
*/
public $phantomjsDir = '/usr/bin/';
/**
* Disable URL rewriting.
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*
* @var bool
*/
public $uglyUrls = false;
/**
* Stream downloaded files trough server?
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*
* @var bool
*/
public $stream = false;
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/**
* Allow to remux video + audio?
*
* @var bool
*/
public $remux = false;
/**
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* MP3 bitrate when converting (in kbit/s).
*
* @var int
*/
public $audioBitrate = 128;
/**
* ffmpeg logging level.
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* Must be one of these: quiet, panic, fatal, error, warning, info, verbose, debug.
*
* @var string
*/
public $ffmpegVerbosity = 'error';
/**
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* App name.
*
* @var string
*/
public $appName = 'AllTube Download';
/**
* Generic formats supported by youtube-dl.
*
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* @var string[]
*/
public $genericFormats = [];
/**
* Enable debug mode.
*
* @var bool
*/
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public $debug = false;
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/**
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* Config constructor.
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*
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* @param mixed[] $options Options
* @throws ConfigException
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*/
private function __construct(array $options = [])
{
$this->applyOptions($options);
$this->getEnv();
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$localeManager = LocaleManager::getInstance();
if (empty($this->genericFormats)) {
// We don't put this in the class definition so it can be detected by xgettext.
$this->genericFormats = [
'best/bestvideo' => $localeManager->t('Best'),
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'bestvideo+bestaudio' => $localeManager->t('Remux best video with best audio'),
'worst/worstvideo' => $localeManager->t('Worst'),
];
}
foreach ($this->genericFormats as $format => $name) {
if (strpos($format, '+') !== false) {
if (!$this->remux) {
// Disable combined formats if remux mode is not enabled.
unset($this->genericFormats[$format]);
}
} elseif (!$this->stream) {
// Force HTTP if stream is not enabled.
$keys = array_keys($this->genericFormats);
$keys[array_search($format, $keys)] = $this->addHttpToFormat($format);
if ($genericFormats = array_combine($keys, $this->genericFormats)) {
$this->genericFormats = $genericFormats;
}
}
}
}
/**
* Add HTTP condition to a format.
*
* @param string $format Format
*
* @return string
*/
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public static function addHttpToFormat(string $format)
{
$newFormat = [];
foreach (explode('/', $format) as $subformat) {
$newFormat[] = $subformat . '[protocol=https]';
$newFormat[] = $subformat . '[protocol=http]';
}
return implode('/', $newFormat);
}
/**
* Throw an exception if some of the options are invalid.
*
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* @return void
* @throws ConfigException If Python is missing
* @throws ConfigException If youtube-dl is missing
*/
private function validateOptions()
{
if (!is_file($this->youtubedl)) {
throw new ConfigException("Can't find youtube-dl at " . $this->youtubedl);
} elseif (!Downloader::checkCommand([$this->python, '--version'])) {
throw new ConfigException("Can't find Python at " . $this->python);
}
if (!class_exists(Debug::class)) {
// Dev dependencies are probably not installed.
$this->debug = false;
}
}
/**
* Apply the provided options.
*
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* @param mixed[] $options Options
*
* @return void
*/
private function applyOptions(array $options)
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{
foreach ($options as $option => $value) {
if (isset($this->$option) && isset($value)) {
$this->$option = $value;
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}
}
}
/**
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* Override options from environment variables.
* Environment variables should use screaming snake case: CONVERT, PYTHON, AUDIO_BITRATE, etc.
* If the value is an array, you should use the YAML format: "CONVERT_ADVANCED_FORMATS='[foo, bar]'"
*
* @return void
* @throws ConfigException
*/
private function getEnv()
{
foreach (get_object_vars($this) as $prop => $value) {
try {
$convert = new Convert($prop);
$env = getenv($convert->toMacro());
} catch (CaseConverterException $e) {
// This should not happen.
throw new ConfigException('Could not parse option name: ' . $prop, $e->getCode(), $e);
}
if ($env) {
$this->$prop = Yaml::parse($env);
}
}
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}
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/**
* Get Config singleton instance.
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*
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* @return Config
* @todo Stop using a singleton.
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*/
public static function getInstance()
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{
if (!isset(self::$instance)) {
self::$instance = new self();
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}
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return self::$instance;
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}
/**
* Set options from a YAML file.
*
* @param string $file Path to the YAML file
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* @return void
* @throws ConfigException
*/
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public static function setFile(string $file)
{
if (is_file($file)) {
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$options = Yaml::parse(strval(file_get_contents($file)));
self::$instance = new self($options);
self::$instance->validateOptions();
} else {
throw new ConfigException("Can't find config file at " . $file);
}
}
/**
* Manually set some options.
*
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* @param mixed[] $options Options (see `config/config.example.yml` for available options)
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* @param bool $update True to update an existing instance
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* @return void
* @throws ConfigException
*/
public static function setOptions(array $options, $update = true)
{
if ($update) {
$config = self::getInstance();
$config->applyOptions($options);
$config->validateOptions();
} else {
self::$instance = new self($options);
}
}
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/**
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* Destroy singleton instance.
*
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* @return void
*/
public static function destroyInstance()
{
self::$instance = null;
}
/**
* Return a downloader object with the current config.
*
* @return Downloader
*/
public function getDownloader()
{
return new Downloader(
$this->youtubedl,
$this->params,
$this->python,
$this->ffmpeg,
$this->phantomjsDir,
$this->ffmpegVerbosity
);
}
/**
* @return string
*/
public function getAppVersion()
{
$version = PrettyVersions::getVersion(Versions::ROOT_PACKAGE_NAME);
return $version->getPrettyVersion();
}
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}