Anjing Webshells

Website : phonehp.ir

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: / home / nehpir / www / wp-content / plugins / woocommersa / includes / Core / SEO /

Filename : RedirectManager.php

back
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<?php
namespace WooCommersa\Core\SEO;

if (!defined('ABSPATH')) exit;

class RedirectManager {

    private $table_name;
    private $cache_key = 'woocommersa_redirects_cache';

    public function __construct() {
        global $wpdb;
        $this->table_name = $wpdb->prefix . 'woocommersa_redirects';
        
        // Hooks for automatic redirect detection
        add_action('post_updated', [$this, 'detect_slug_change'], 10, 3);
        add_action('template_redirect', [$this, 'handle_redirects'], 1);
    }

    public function create_table() {
        global $wpdb;
        $charset_collate = $wpdb->get_charset_collate();

        $sql = "CREATE TABLE $this->table_name (
            id bigint(20) NOT NULL AUTO_INCREMENT,
            old_url varchar(255) NOT NULL,
            new_url varchar(255) NOT NULL,
            type int(3) NOT NULL DEFAULT 301,
            status varchar(20) NOT NULL DEFAULT 'active',
            hits int(11) NOT NULL DEFAULT 0,
            created_at datetime DEFAULT CURRENT_TIMESTAMP,
            PRIMARY KEY  (id),
            UNIQUE KEY old_url (old_url)
        ) $charset_collate;";

        require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
        dbDelta($sql);
    }

    public function add($old_url, $new_url, $type = 301, $status = 'active') {
        global $wpdb;
        
        $old_path = $this->normalize_url($old_url);
        $new_path = $this->normalize_url($new_url);

        if ($old_path === $new_path || empty($old_path)) return false;
        
        // Prevent loops
        if ($this->check_loop($old_path, $new_path)) return false;

        $result = $wpdb->replace(
            $this->table_name,
            [
                'old_url' => $old_path,
                'new_url' => $new_path,
                'type' => (int)$type,
                'status' => $status
            ]
        );

        if ($result !== false) {
            $this->refresh_cache();
        }

        return $result;
    }

    public function update($id, $data) {
        global $wpdb;
        $result = $wpdb->update($this->table_name, $data, ['id' => $id]);
        if ($result !== false) {
            $this->refresh_cache();
        }
        return $result;
    }

    public function delete($id) {
        global $wpdb;
        $result = $wpdb->delete($this->table_name, ['id' => $id], ['%d']);
        if ($result) $this->refresh_cache();
        return $result;
    }

    public function remove_by_path($path) {
        global $wpdb;
        $normalized = $this->normalize_url($path);
        $result = $wpdb->delete($this->table_name, ['old_url' => $normalized], ['%s']);
        if ($result) $this->refresh_cache();
        return $result;
    }

    public function refresh_cache() {
        global $wpdb;
        $redirects = $wpdb->get_results("SELECT old_url, new_url, type FROM $this->table_name WHERE status = 'active'", ARRAY_A);
        $cache = [];
        foreach ($redirects as $r) {
            $cache[$r['old_url']] = [
                'url'  => $r['new_url'],
                'type' => (int)$r['type']
            ];
        }
        update_option($this->cache_key, $cache, 'no');
    }

    public function detect_slug_change($post_id, $post_after, $post_before) {
        if ($post_before->post_name !== $post_after->post_name && $post_after->post_type === 'product') {
            $old_link = get_permalink($post_before); // This might still return new slug in some WP versions
            $new_link = get_permalink($post_after);
            
            // Safer way: build paths manually if permalink structures vary
            $old_path = parse_url($old_link, PHP_URL_PATH);
            $new_path = parse_url($new_link, PHP_URL_PATH);
            
            $this->add($old_path, $new_path);
        }
    }

    public function handle_redirects() {
        if (is_admin()) return;

        $current_url = $this->normalize_url($_SERVER['REQUEST_URI']);
        if (empty($current_url)) return;

        $cache = get_option($this->cache_key, []);
        
        if (isset($cache[$current_url])) {
            $redirect = $cache[$current_url];
            
            // Increment hits
            add_action('shutdown', function() use ($current_url) {
                global $wpdb;
                $wpdb->query($wpdb->prepare(
                    "UPDATE $this->table_name SET hits = hits + 1 WHERE old_url = %s",
                    $current_url
                ));
            });

            $target = $redirect['url'];
            if (!preg_match('~^(?:f|ht)tps?://~i', $target)) {
                $target = home_url($target);
            }

            wp_redirect($target, $redirect['type']);
            exit;
        }
    }

    private function normalize_url($url) {
        if (empty($url)) return '';
        $path = parse_url($url, PHP_URL_PATH);
        if (!$path) $path = $url;
        
        // Remove site path if installed in subdirectory
        $site_path = parse_url(home_url(), PHP_URL_PATH);
        if ($site_path && $site_path !== '/' && strpos($path, $site_path) === 0) {
            $path = substr($path, strlen($site_path));
        }
        
        return trim($path, '/');
    }

    private function check_loop($old_url, $new_url, $depth = 0) {
        if ($depth > 5) return true;
        if ($old_url === $new_url) return true;
        
        global $wpdb;
        $next = $wpdb->get_var($wpdb->prepare(
            "SELECT new_url FROM $this->table_name WHERE old_url = %s",
            $new_url
        ));
        
        if ($next) return $this->check_loop($old_url, $next, $depth + 1);
        return false;
    }
}