src/Module/ParseUrl.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   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.
  11  *
  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.
  16  *
  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/>.
  19  *
  20  */
  21
  22 namespace Friendica\Module;
  23
  24 use Friendica\BaseModule;
  25 use Friendica\Content\Text\BBCode;
  26 use Friendica\Core\Hook;
  27 use Friendica\Core\Session;
  28 use Friendica\Core\System;
  29 use Friendica\Network\HTTPException\BadRequestException;
  30 use Friendica\Util;
  31
  32 class ParseUrl extends BaseModule
  33 {
  34         public static function rawContent(array $parameters = [])
  35         {
  36                 if (!Session::isAuthenticated()) {
  37                         throw new \Friendica\Network\HTTPException\ForbiddenException();
  38                 }
  39
  40                 $format = '';
  41                 $title = '';
  42                 $description = '';
  43                 $ret = ['success' => false, 'contentType' => ''];
  44
  45                 if (!empty($_GET['binurl']) && Util\Strings::isHex($_GET['binurl'])) {
  46                         $url = trim(hex2bin($_GET['binurl']));
  47                 } elseif (!empty($_GET['url'])) {
  48                         $url = trim($_GET['url']);
  49                         // fallback in case no url is valid
  50                 } else {
  51                         throw new BadRequestException('No url given');
  52                 }
  53
  54                 if (!empty($_GET['title'])) {
  55                         $title = strip_tags(trim($_GET['title']));
  56                 }
  57
  58                 if (!empty($_GET['description'])) {
  59                         $description = strip_tags(trim($_GET['description']));
  60                 }
  61
  62                 if (!empty($_GET['tags'])) {
  63                         $arr_tags = Util\ParseUrl::convertTagsToArray($_GET['tags']);
  64                         if (count($arr_tags)) {
  65                                 $str_tags = "\n" . implode(' ', $arr_tags) . "\n";
  66                         }
  67                 }
  68
  69                 if (isset($_GET['format']) && $_GET['format'] == 'json') {
  70                         $format = 'json';
  71                 }
  72
  73                 // Add url scheme if it is missing
  74                 $arrurl = parse_url($url);
  75                 if (empty($arrurl['scheme'])) {
  76                         if (!empty($arrurl['host'])) {
  77                                 $url = 'http:' . $url;
  78                         } else {
  79                                 $url = 'http://' . $url;
  80                         }
  81                 }
  82
  83                 $arr = ['url' => $url, 'format' => $format, 'text' => null];
  84
  85                 Hook::callAll('parse_link', $arr);
  86
  87                 if ($arr['text']) {
  88                         if ($format == 'json') {
  89                                 System::jsonExit($arr['text']);
  90                         } else {
  91                                 echo $arr['text'];
  92                                 exit();
  93                         }
  94                 }
  95
  96                 if ($format == 'json') {
  97                         $siteinfo = Util\ParseUrl::getSiteinfoCached($url);
  98
  99                         if (in_array($siteinfo['type'], ['image', 'video', 'audio'])) {
 100                                 switch ($siteinfo['type']) {
 101                                         case 'video':
 102                                                 $content_type = 'video';
 103                                                 break;
 104                                         case 'audio':
 105                                                 $content_type = 'audio';
 106                                                 break;
 107                                         default:
 108                                                 $content_type = 'image';
 109                                                 break;
 110                                 }
 111
 112                                 $ret['contentType'] = $content_type;
 113                                 $ret['data'] = ['url' => $url];
 114                                 $ret['success'] = true;
 115                         } else {
 116                                 unset($siteinfo['keywords']);
 117
 118                                 $ret['data'] = $siteinfo;
 119                                 $ret['contentType'] = 'attachment';
 120                                 $ret['success'] = true;
 121                         }
 122
 123                         System::jsonExit($ret);
 124                 } else {
 125                         echo BBCode::embedURL($url, empty($_GET['noAttachment']), $title, $description, $_GET['tags'] ?? '');
 126                         exit();
 127                 }
 128         }
 129 }