mod/wall_attach.php

   1 <?php
   2 /**
   3  * @file mod/wall_attach.php
   4  */
   5
   6 use Friendica\App;
   7 use Friendica\Core\Session;
   8 use Friendica\Database\DBA;
   9 use Friendica\DI;
  10 use Friendica\Model\Attach;
  11 use Friendica\Model\User;
  12 use Friendica\Util\Strings;
  13
  14 function wall_attach_post(App $a) {
  15
  16         $r_json = (!empty($_GET['response']) && $_GET['response']=='json');
  17
  18         if ($a->argc > 1) {
  19                 $nick = $a->argv[1];
  20                 $r = q("SELECT `user`.*, `contact`.`id` FROM `user` LEFT JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
  21                         DBA::escape($nick)
  22                 );
  23
  24                 if (! DBA::isResult($r)) {
  25                         if ($r_json) {
  26                                 echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
  27                                 exit();
  28                         }
  29                         return;
  30                 }
  31         } else {
  32                 if ($r_json) {
  33                         echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
  34                         exit();
  35                 }
  36
  37                 return;
  38         }
  39
  40         $can_post  = false;
  41
  42         $page_owner_uid   = $r[0]['uid'];
  43         $page_owner_cid   = $r[0]['id'];
  44         $community_page   = (($r[0]['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
  45
  46         if (local_user() && (local_user() == $page_owner_uid)) {
  47                 $can_post = true;
  48         } elseif ($community_page && !empty(Session::getRemoteContactID($page_owner_uid))) {
  49                 $contact_id = Session::getRemoteContactID($page_owner_uid);
  50                 $r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
  51                         intval($contact_id),
  52                         intval($page_owner_uid)
  53                 );
  54
  55                 if (DBA::isResult($r)) {
  56                         $can_post = true;
  57                 }
  58         }
  59
  60         if (!$can_post) {
  61                 if ($r_json) {
  62                         echo json_encode(['error' => DI::l10n()->t('Permission denied.')]);
  63                         exit();
  64                 }
  65                 notice(DI::l10n()->t('Permission denied.') . EOL );
  66                 exit();
  67         }
  68
  69         if (empty($_FILES['userfile'])) {
  70                 if ($r_json) {
  71                         echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
  72                 }
  73                 exit();
  74         }
  75
  76         $src      = $_FILES['userfile']['tmp_name'];
  77         $filename = basename($_FILES['userfile']['name']);
  78         $filesize = intval($_FILES['userfile']['size']);
  79
  80         $maxfilesize = DI::config()->get('system','maxfilesize');
  81
  82         /* Found html code written in text field of form,
  83          * when trying to upload a file with filesize
  84          * greater than upload_max_filesize. Cause is unknown.
  85          * Then Filesize gets <= 0.
  86          */
  87
  88         if ($filesize <= 0) {
  89                 $msg = DI::l10n()->t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(DI::l10n()->t('Or - did you try to upload an empty file?'));
  90                 if ($r_json) {
  91                         echo json_encode(['error' => $msg]);
  92                 } else {
  93                         notice($msg . EOL);
  94                 }
  95                 @unlink($src);
  96                 exit();
  97         }
  98
  99         if ($maxfilesize && $filesize > $maxfilesize) {
 100                 $msg = DI::l10n()->t('File exceeds size limit of %s', Strings::formatBytes($maxfilesize));
 101                 if ($r_json) {
 102                         echo json_encode(['error' => $msg]);
 103                 } else {
 104                         echo $msg . EOL;
 105                 }
 106                 @unlink($src);
 107                 exit();
 108         }
 109
 110         $newid = Attach::storeFile($src, $page_owner_uid, $filename, '<' . $page_owner_cid . '>');
 111
 112         @unlink($src);
 113
 114         if ($newid === false) {
 115                 $msg =  DI::l10n()->t('File upload failed.');
 116                 if ($r_json) {
 117                         echo json_encode(['error' => $msg]);
 118                 } else {
 119                         echo $msg . EOL;
 120                 }
 121                 exit();
 122         }
 123
 124         if ($r_json) {
 125                 echo json_encode(['ok' => true, 'id' => $newid]);
 126                 exit();
 127         }
 128
 129         $lf = "\n";
 130
 131         echo  $lf . $lf . '[attachment]' . $newid . '[/attachment]' . $lf;
 132
 133         exit();
 134         // NOTREACHED
 135 }