3 * @copyright Copyright (C) 2010-2021, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Model\Post;
24 use Friendica\Core\Logger;
25 use Friendica\Core\System;
26 use Friendica\Database\Database;
27 use Friendica\Database\DBA;
29 use Friendica\Util\Proxy;
34 * This Model class handles post related external links
38 public static function getByLink(int $uri_id, string $url, $size = '')
40 if (empty($uri_id) || empty($url) || Proxy::isLocalImage($url)) {
44 if (!in_array(parse_url($url, PHP_URL_SCHEME), ['http', 'https'])) {
45 Logger::info('Bad URL, quitting', ['uri-id' => $uri_id, 'url' => $url, 'callstack' => System::callstack(20)]);
49 $link = DBA::selectFirst('post-link', ['id'], ['uri-id' => $uri_id, 'url' => $url]);
50 if (!empty($link['id'])) {
52 Logger::info('Found', ['id' => $id, 'uri-id' => $uri_id, 'url' => $url]);
54 $mime = self::fetchMimeType($url);
56 DBA::insert('post-link', ['uri-id' => $uri_id, 'url' => $url, 'mimetype' => $mime], Database::INSERT_IGNORE);
57 $id = DBA::lastInsertId();
58 Logger::info('Inserted', ['id' => $id, 'uri-id' => $uri_id, 'url' => $url]);
65 $url = DI::baseUrl() . '/photo/link/';
67 case Proxy::SIZE_MICRO:
68 $url .= Proxy::PIXEL_MICRO . '/';
70 case Proxy::SIZE_THUMB:
71 $url .= Proxy::PIXEL_THUMB . '/';
73 case Proxy::SIZE_SMALL:
74 $url .= Proxy::PIXEL_SMALL . '/';
76 case Proxy::SIZE_MEDIUM:
77 $url .= Proxy::PIXEL_MEDIUM . '/';
79 case Proxy::SIZE_LARGE:
80 $url .= Proxy::PIXEL_LARGE . '/';
86 private static function fetchMimeType(string $url)
88 $timeout = DI::config()->get('system', 'xrd_timeout');
90 $curlResult = DI::httpRequest()->head($url, ['timeout' => $timeout]);
91 if ($curlResult->isSuccess()) {
92 if (empty($media['mimetype'])) {
93 return $curlResult->getHeader('Content-Type');
100 * Add external links and replace them in the body
102 * @param integer $uriid
103 * @param string $body
104 * @return string Body with replaced links
106 public static function insertFromBody(int $uriid, string $body)
108 if (preg_match_all("/\[img\=([0-9]*)x([0-9]*)\](http.*?)\[\/img\]/ism", $body, $pictures, PREG_SET_ORDER)) {
109 foreach ($pictures as $picture) {
110 $body = str_replace($picture[3], self::getByLink($uriid, $picture[3]), $body);
114 if (preg_match_all("/\[img=(http[^\[\]]*)\]([^\[\]]*)\[\/img\]/Usi", $body, $pictures, PREG_SET_ORDER)) {
115 foreach ($pictures as $picture) {
116 $body = str_replace($picture[1], self::getByLink($uriid, $picture[1]), $body);
120 if (preg_match_all("/\[img\](http[^\[\]]*)\[\/img\]/ism", $body, $pictures, PREG_SET_ORDER)) {
121 foreach ($pictures as $picture) {
122 $body = str_replace($picture[1], self::getByLink($uriid, $picture[1]), $body);