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\Database\DBA;
  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' => L10n::t('Invalid request.')]);
  27                                 exit();
  28                         }
  29                         return;
  30                 }
  31         } else {
  32                 if ($r_json) {
  33                         echo json_encode(['error' => 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                 $can_post = true;
  48         } else {
  49                 if ($community_page && remote_user()) {
  50                         $contact_id = 0;
  51
  52                         if (is_array($_SESSION['remote'])) {
  53                                 foreach ($_SESSION['remote'] as $v) {
  54                                         if ($v['uid'] == $page_owner_uid) {
  55                                                 $contact_id = $v['cid'];
  56                                                 break;
  57                                         }
  58                                 }
  59                         }
  60
  61                         if ($contact_id > 0) {
  62                                 $r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
  63                                         intval($contact_id),
  64                                         intval($page_owner_uid)
  65                                 );
  66
  67                                 if (DBA::isResult($r)) {
  68                                         $can_post = true;
  69                                 }
  70                         }
  71                 }
  72         }
  73
  74         if (! $can_post) {
  75                 if ($r_json) {
  76                         echo json_encode(['error' => L10n::t('Permission denied.')]);
  77                         exit();
  78                 }
  79                 notice(L10n::t('Permission denied.') . EOL );
  80                 exit();
  81         }
  82
  83         if (empty($_FILES['userfile'])) {
  84                 if ($r_json) {
  85                         echo json_encode(['error' => L10n::t('Invalid request.')]);
  86                 }
  87                 exit();
  88         }
  89
  90         $src      = $_FILES['userfile']['tmp_name'];
  91         $filename = basename($_FILES['userfile']['name']);
  92         $filesize = intval($_FILES['userfile']['size']);
  93
  94         $maxfilesize = Config::get('system','maxfilesize');
  95
  96         /* Found html code written in text field of form,
  97          * when trying to upload a file with filesize
  98          * greater than upload_max_filesize. Cause is unknown.
  99          * Then Filesize gets <= 0.
 100          */
 101
 102         if ($filesize <= 0) {
 103                 $msg = L10n::t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(L10n::t('Or - did you try to upload an empty file?'));
 104                 if ($r_json) {
 105                         echo json_encode(['error' => $msg]);
 106                 } else {
 107                         notice($msg . EOL);
 108                 }
 109                 @unlink($src);
 110                 exit();
 111         }
 112
 113         if ($maxfilesize && $filesize > $maxfilesize) {
 114                 $msg = L10n::t('File exceeds size limit of %s', Strings::formatBytes($maxfilesize));
 115                 if ($r_json) {
 116                         echo json_encode(['error' => $msg]);
 117                 } else {
 118                         echo $msg . EOL;
 119                 }
 120                 @unlink($src);
 121                 exit();
 122         }
 123
 124         $newid = Attach::storeFile($src, $page_owner_uid, $filename, '<' . $page_owner_cid . '>');
 125
 126         @unlink($src);
 127
 128         if ($newid === false) {
 129                 $msg =  L10n::t('File upload failed.');
 130                 if ($r_json) {
 131                         echo json_encode(['error' => $msg]);
 132                 } else {
 133                         echo $msg . EOL;
 134                 }
 135                 exit();
 136         }
 137
 138         if ($r_json) {
 139                 echo json_encode(['ok' => true, 'id' => $newid]);
 140                 exit();
 141         }
 142
 143         $lf = "\n";
 144
 145         echo  $lf . $lf . '[attachment]' . $newid . '[/attachment]' . $lf;
 146
 147         exit();
 148         // NOTREACHED
 149 }