From 1f7c1bb66c7eca5c67ef763e5ae2fabcae279080 Mon Sep 17 00:00:00 2001
From: Jay Trees <github.hybridsupply@grandel.anonaddy.me>
Date: Mon, 11 Apr 2022 13:06:56 +0200
Subject: [PATCH] Fix redirect to home when opening pretty URL

---
 index.php                             |  6 +++
 src/classes/url.php                   | 54 +++++++++++++++++++++------
 src/functions/queryToKeyValuePair.php | 27 ++++++++++++++
 3 files changed, 76 insertions(+), 11 deletions(-)
 create mode 100644 src/functions/queryToKeyValuePair.php

diff --git a/index.php b/index.php
index 7053feda..ed18c099 100644
--- a/index.php
+++ b/index.php
@@ -122,6 +122,12 @@ if (isset($api)) {
 /**
  * Pretty URLs
  */
+$url = new \wishthis\URL($_SERVER['REQUEST_URI']);
+
+if ($url->isPretty()) {
+    $_SESSION['_GET'] = query_to_key_value_pair($url->getPermalink());
+}
+
 if ($_SERVER['QUERY_STRING']) {
     $_SESSION['_GET'] = $_GET;
 }
diff --git a/src/classes/url.php b/src/classes/url.php
index 2cc96197..da6821c8 100644
--- a/src/classes/url.php
+++ b/src/classes/url.php
@@ -14,11 +14,53 @@ class URL
     {
     }
 
+    public function isPretty(): bool
+    {
+        return !preg_match('/^\/\?.+?=.+?$/', $this->url);
+    }
+    public function getPermalink(): string
+    {
+        $htaccess  = preg_split('/\r\n|\r|\n/', file_get_contents(ROOT . '/.htaccess'));
+        $permalink = '';
+
+        foreach ($htaccess as $index => $line) {
+            $parts = explode(chr(32), trim($line));
+
+            if (count($parts) >= 2) {
+                switch ($parts[0]) {
+                    case 'RewriteRule':
+                        $rewriteRule  = $parts[1];
+                        $target       = $parts[2];
+
+                        $regex = str_replace('/', '\/', $rewriteRule);
+
+                        if (preg_match('/' . $regex . '/', ltrim($this->url, '/'), $matches)) {
+                            $permalink = $target;
+
+                            preg_match_all('/\$\d+/', $target, $placeholders);
+                            $placeholders = reset($placeholders);
+
+                            foreach ($placeholders as $index => $placeholder) {
+                                $permalink = str_replace($placeholder, $matches[$index + 1], $permalink);
+                            }
+                        }
+                        break;
+                }
+            }
+        }
+
+        return $permalink;
+    }
+
     public function getPretty(): string
     {
         $htaccess   = preg_split('/\r\n|\r|\n/', file_get_contents(ROOT . '/.htaccess'));
         $pretty_url = '';
 
+        if (!$this->url) {
+            return '';
+        }
+
         foreach ($htaccess as $index => $line) {
             $parts = explode(chr(32), trim($line));
 
@@ -36,17 +78,7 @@ class URL
                             explode('&', parse_url($target, PHP_URL_QUERY))
                         );
                         $flags       = explode(',', substr($parts[3], 1, -1)) ?? array();
-
-                        $parameters_pairs = explode('&', parse_url($this->url, PHP_URL_PATH));
-                        $parameters       = array();
-
-                        foreach ($parameters_pairs as $index => $pair) {
-                            $parts = explode('=', $pair);
-                            $key   = reset($parts);
-                            $value = end($parts);
-
-                            $parameters[$key] = $value;
-                        }
+                        $parameters  = query_to_key_value_pair($this->url);
 
                         preg_match_all('/\(.+?\)/', $rewriteRule, $regexes);
 
diff --git a/src/functions/queryToKeyValuePair.php b/src/functions/queryToKeyValuePair.php
new file mode 100644
index 00000000..c341f1df
--- /dev/null
+++ b/src/functions/queryToKeyValuePair.php
@@ -0,0 +1,27 @@
+<?php
+
+/**
+ * @author Jay Trees <github.jay@grandel.anonaddy.me>
+ */
+
+/**
+ * Query string to key value pair
+ *
+ * @return array
+ */
+function query_to_key_value_pair(string $query): array
+{
+    $query            = str_contains($query, '?') ? parse_url($query, PHP_URL_QUERY) : $query;
+    $parameters_pairs = explode('&', $query);
+    $parameters       = array();
+
+    foreach ($parameters_pairs as $index => $pair) {
+        $parts = explode('=', $pair);
+        $key   = reset($parts);
+        $value = end($parts);
+
+        $parameters[$key] = $value;
+    }
+
+    return $parameters;
+}