unshorturl/unshorturl.php


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<?php

/**
 * Name: UnshortURL
 * Description: Expand shortened URLs into their proper URLs
 * Version: 0.1.0
 * Author: Harald Eilertsen <https://hub.volse.no/channel/harald>
 * Maintainer: Harald Eilertsen <https://hub.volse.no/channel/harald>
 *
 * SPDX-FileCopyrightText: 2021 Harald Eilertsen <haraldei@anduin.net>
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

use Zotlabs\Lib\Apps;
use Zotlabs\Extend\Hook;

function unshorturl_install() {
    Hook::register('prepare_body', 'addon/unshorturl/unshorturl.php', 'unshorturl_prepare_body', 1);
}

function unshorturl_uninstall() {
    Hook::unregister('prepare_body', 'addon/unshorturl/unshorturl.php', 'unshorturl_prepare_body');
}

function unshorturl_prepare_body(&$body) {
    if (!local_channel() || !Apps::addon_app_installed(local_channel(), 'unshorturl')) {
        return;
    }

    $matches = [];
    $num_matches = preg_match_all('/https?:\/\/bit\.ly\/\w+/', $body['html'], $links);
    if ($num_matches > 0) {
        foreach ($matches as $links) {
            error_log('unshorturl: Links found: ' . implode(', ', $links));
            foreach($links as $l) {
                str_replace($l, '[filtered bit.ly url]', $body['html']);
            }
        }
    }
}