mod/wall_attach.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, 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 use Friendica\App;
  23 use Friendica\Core\Session;
  24 use Friendica\Core\System;
  25 use Friendica\Database\DBA;
  26 use Friendica\DI;
  27 use Friendica\Model\Attach;
  28 use Friendica\Model\User;
  29 use Friendica\Util\Strings;
  30
  31 function wall_attach_post(App $a) {
  32
  33         $r_json = (!empty($_GET['response']) && $_GET['response']=='json');
  34
  35         if (DI::args()->getArgc() > 1) {
  36                 $nick = DI::args()->getArgv()[1];
  37                 $owner = User::getOwnerDataByNick($nick);
  38                 if (!DBA::isResult($owner)) {
  39                         if ($r_json) {
  40                                 System::jsonExit(['error' => DI::l10n()->t('Invalid request.')]);
  41                         }
  42                         return;
  43                 }
  44         } else {
  45                 if ($r_json) {
  46                         System::jsonExit(['error' => DI::l10n()->t('Invalid request.')]);
  47                 }
  48
  49                 return;
  50         }
  51
  52         $can_post  = false;
  53
  54         $page_owner_uid = $owner['uid'];
  55         $page_owner_cid = $owner['id'];
  56         $community_page = $owner['page-flags'] == User::PAGE_FLAGS_COMMUNITY;
  57
  58         if (local_user() && (local_user() == $page_owner_uid)) {
  59                 $can_post = true;
  60         } elseif ($community_page && !empty(Session::getRemoteContactID($page_owner_uid))) {
  61                 $contact_id = Session::getRemoteContactID($page_owner_uid);
  62                 $can_post = DBA::exists('contact', ['blocked' => false, 'pending' => false, 'id' => $contact_id, 'uid' => $page_owner_uid]);
  63         }
  64
  65         if (!$can_post) {
  66                 if ($r_json) {
  67                         System::jsonExit(['error' => DI::l10n()->t('Permission denied.')]);
  68                 }
  69                 notice(DI::l10n()->t('Permission denied.') . EOL );
  70                 System::exit();
  71         }
  72
  73         if (empty($_FILES['userfile'])) {
  74                 if ($r_json) {
  75                         System::jsonExit(['error' => DI::l10n()->t('Invalid request.')]);
  76                 }
  77                 System::exit();
  78         }
  79
  80         $src      = $_FILES['userfile']['tmp_name'];
  81         $filename = basename($_FILES['userfile']['name']);
  82         $filesize = intval($_FILES['userfile']['size']);
  83
  84         $maxfilesize = DI::config()->get('system','maxfilesize');
  85
  86         /* Found html code written in text field of form,
  87          * when trying to upload a file with filesize
  88          * greater than upload_max_filesize. Cause is unknown.
  89          * Then Filesize gets <= 0.
  90          */
  91
  92         if ($filesize <= 0) {
  93                 $msg = DI::l10n()->t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(DI::l10n()->t('Or - did you try to upload an empty file?'));
  94                 @unlink($src);
  95                 if ($r_json) {
  96                         System::jsonExit(['error' => $msg]);
  97                 } else {
  98                         notice($msg);
  99                 }
 100                 System::exit();
 101         }
 102
 103         if ($maxfilesize && $filesize > $maxfilesize) {
 104                 $msg = DI::l10n()->t('File exceeds size limit of %s', Strings::formatBytes($maxfilesize));
 105                 @unlink($src);
 106                 if ($r_json) {
 107                         System::jsonExit(['error' => $msg]);
 108                 } else {
 109                         echo $msg . EOL;
 110                 }
 111                 System::exit();
 112         }
 113
 114         $newid = Attach::storeFile($src, $page_owner_uid, $filename, '<' . $page_owner_cid . '>');
 115
 116         @unlink($src);
 117
 118         if ($newid === false) {
 119                 $msg =  DI::l10n()->t('File upload failed.');
 120                 if ($r_json) {
 121                         System::jsonExit(['error' => $msg]);
 122                 } else {
 123                         echo $msg . EOL;
 124                 }
 125                 System::exit();
 126         }
 127
 128         if ($r_json) {
 129                 System::jsonExit(['ok' => true, 'id' => $newid]);
 130         }
 131
 132         $lf = "\n";
 133
 134         echo  $lf . $lf . '[attachment]' . $newid . '[/attachment]' . $lf;
 135         System::exit();
 136         // NOTREACHED
 137 }