phpBB Stylext

Code: Tout sélectionner

'core.posting_modify_template_vars' => 'edit_preview',

Code: Tout sélectionner

<?php
/**
 *
 * @package phpBB Extension - Smart Links
 * @copyright (c) 2026 Fred Rimbert
 * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
 *
 */

namespace caforum\smartlinks\event;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;

class listener implements EventSubscriberInterface
{
    /** @var \phpbb\db\driver\driver_interface */
    protected $db;

    /** @var \phpbb\template\template */
    protected $template;

    public function __construct(
        \phpbb\db\driver\driver_interface $db,
        \phpbb\template\template $template
    )
    {
        $this->db = $db;
        $this->template = $template;
    }

    public static function getSubscribedEvents()
    {
        return [
            'core.viewtopic_modify_post_row' => 'edit_postrow',
            'core.posting_modify_template_vars' => 'edit_preview',
        ];
    }

    /**
     * Returns the topic title from a topic_id or a post_id.
     */
    protected function get_topic_title($id, $type = 't')
    {
        if ($type === 'p')
        {
            $sql = 'SELECT t.topic_title
                FROM ' . POSTS_TABLE . ' p
                INNER JOIN ' . TOPICS_TABLE . ' t
                    ON t.topic_id = p.topic_id
                WHERE p.post_id = ' . (int) $id;
        }
        else
        {
            $sql = 'SELECT topic_title
                FROM ' . TOPICS_TABLE . '
                WHERE topic_id = ' . (int) $id;
        }

        $result = $this->db->sql_query($sql);
        $row = $this->db->sql_fetchrow($result);
        $this->db->sql_freeresult($result);

        return ($row) ? $row['topic_title'] : '';
    }

    /**
     * Replaces internal phpBB link text with the corresponding topic title.
     * The HTML is already rendered here, so this works for both published
     * posts and the formatted preview.
     */
    protected function replace_links($message)
    {
        $pattern = '#<a([^>]+href=(?:"|\')([^"\']*viewtopic\.php\?[^"\']*)(?:"|\')[^>]*)>(.*?)</a>#is';

        return preg_replace_callback($pattern, function ($matches)
        {
            $url = html_entity_decode($matches[2], ENT_QUOTES);
            $title = '';

            if (preg_match('/(?:\?|&)t=(\d+)/', $url, $m))
            {
                $title = $this->get_topic_title((int) $m[1], 't');
            }
            elseif (preg_match('/(?:\?|&)p=(\d+)/', $url, $m))
            {
                $title = $this->get_topic_title((int) $m[1], 'p');
            }

            if (!$title)
            {
                return $matches[0];
            }

            return '<a' . $matches[1] . '>' . htmlspecialchars($title, ENT_QUOTES, 'UTF-8') . '</a>';
        }, $message);
    }

    /**
     * Replace internal link text in the formatted posting preview.
     *
     * The normal posting page keeps MESSAGE as BBCode for the textarea.
     * The actual preview is stored separately in PREVIEW_MESSAGE, so it must
     * be modified directly without touching MESSAGE.
     */
    public function edit_preview($event)
    {
        if (!$event['preview'])
        {
            return;
        }

        $message_parser = $event['message_parser'];

        $preview_message = $message_parser->format_display(
            $event['post_data']['enable_bbcode'],
            $event['post_data']['enable_urls'],
            $event['post_data']['enable_smilies'],
            false
        );

        $this->template->assign_var('PREVIEW_MESSAGE', $this->replace_links($preview_message));
    }

    public function edit_postrow($event)
    {
        $post_row = $event['post_row'];

        if (!empty($post_row['MESSAGE']))
        {
            $post_row['MESSAGE'] = $this->replace_links($post_row['MESSAGE']);
        }

        if (!empty($post_row['SIGNATURE']))
        {
            $post_row['SIGNATURE'] = $this->replace_links($post_row['SIGNATURE']);
        }

        $event['post_row'] = $post_row;
    }
}