mod/wall_attach.php

   1 <?php
   2 /**
   3  * @file mod/wall_attach.php
   4  */
   5
   6 use Friendica\App;
   7 use Friendica\Core\Config;
   8 use Friendica\Core\L10n;
   9 use Friendica\Core\Session;
  10 use Friendica\Database\DBA;
  11 use Friendica\Model\Attach;
  12 use Friendica\Model\User;
  13 use Friendica\Util\Strings;
  14
  15 function wall_attach_post(App $a) {
  16
  17         $r_json = (!empty($_GET['response']) && $_GET['response']=='json');
  18
  19         if ($a->argc > 1) {
  20                 $nick = $a->argv[1];
  21                 $r = q("SELECT `user`.*, `contact`.`id` FROM `user` LEFT JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
  22                         DBA::escape($nick)
  23                 );
  24
  25                 if (! DBA::isResult($r)) {
  26                         if ($r_json) {
  27                                 echo json_encode(['error' => L10n::t('Invalid request.')]);
  28                                 exit();
  29                         }
  30                         return;
  31                 }
  32         } else {
  33                 if ($r_json) {
  34                         echo json_encode(['error' => L10n::t('Invalid request.')]);
  35                         exit();
  36                 }
  37
  38                 return;
  39         }
  40
  41         $can_post  = false;
  42
  43         $page_owner_uid   = $r[0]['uid'];
  44         $page_owner_cid   = $r[0]['id'];
  45         $community_page   = (($r[0]['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
  46
  47         if (local_user() && (local_user() == $page_owner_uid)) {
  48                 $can_post = true;
  49         } elseif ($community_page && !empty(Session::getRemoteContactID($page_owner_uid))) {
  50                 $contact_id = Session::getRemoteContactID($page_owner_uid);
  51                 $r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
  52                         intval($contact_id),
  53                         intval($page_owner_uid)
  54                 );
  55
  56                 if (DBA::isResult($r)) {
  57                         $can_post = true;
  58                 }
  59         }
  60
  61         if (!$can_post) {
  62                 if ($r_json) {
  63                         echo json_encode(['error' => L10n::t('Permission denied.')]);
  64                         exit();
  65                 }
  66                 notice(L10n::t('Permission denied.') . EOL );
  67                 exit();
  68         }
  69
  70         if (empty($_FILES['userfile'])) {
  71                 if ($r_json) {
  72                         echo json_encode(['error' => L10n::t('Invalid request.')]);
  73                 }
  74                 exit();
  75         }
  76
  77         $src      = $_FILES['userfile']['tmp_name'];
  78         $filename = basename($_FILES['userfile']['name']);
  79         $filesize = intval($_FILES['userfile']['size']);
  80
  81         $maxfilesize = Config::get('system','maxfilesize');
  82
  83         /* Found html code written in text field of form,
  84          * when trying to upload a file with filesize
  85          * greater than upload_max_filesize. Cause is unknown.
  86          * Then Filesize gets <= 0.
  87          */
  88
  89         if ($filesize <= 0) {
  90                 $msg = L10n::t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(L10n::t('Or - did you try to upload an empty file?'));
  91                 if ($r_json) {
  92                         echo json_encode(['error' => $msg]);
  93                 } else {
  94                         notice($msg . EOL);
  95                 }
  96                 @unlink($src);
  97                 exit();
  98         }
  99
 100         if ($maxfilesize && $filesize > $maxfilesize) {
 101                 $msg = L10n::t('File exceeds size limit of %s', Strings::formatBytes($maxfilesize));
 102                 if ($r_json) {
 103                         echo json_encode(['error' => $msg]);
 104                 } else {
 105                         echo $msg . EOL;
 106                 }
 107                 @unlink($src);
 108                 exit();
 109         }
 110
 111         $newid = Attach::storeFile($src, $page_owner_uid, $filename, '<' . $page_owner_cid . '>');
 112
 113         @unlink($src);
 114
 115         if ($newid === false) {
 116                 $msg =  L10n::t('File upload failed.');
 117                 if ($r_json) {
 118                         echo json_encode(['error' => $msg]);
 119                 } else {
 120                         echo $msg . EOL;
 121                 }
 122                 exit();
 123         }
 124
 125         if ($r_json) {
 126                 echo json_encode(['ok' => true, 'id' => $newid]);
 127                 exit();
 128         }
 129
 130         $lf = "\n";
 131
 132         echo  $lf . $lf . '[attachment]' . $newid . '[/attachment]' . $lf;
 133
 134         exit();
 135         // NOTREACHED
 136 }