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\Contact;
  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         $visitor   = 0;
  42
  43         $page_owner_uid   = $r[0]['uid'];
  44         $page_owner_cid   = $r[0]['id'];
  45         $page_owner_nick  = $r[0]['nickname'];
  46         $community_page   = (($r[0]['page-flags'] == Contact::PAGE_COMMUNITY) ? true : false);
  47
  48         if ((local_user()) && (local_user() == $page_owner_uid)) {
  49                 $can_post = true;
  50         } else {
  51                 if ($community_page && remote_user()) {
  52                         $contact_id = 0;
  53
  54                         if (is_array($_SESSION['remote'])) {
  55                                 foreach ($_SESSION['remote'] as $v) {
  56                                         if ($v['uid'] == $page_owner_uid) {
  57                                                 $contact_id = $v['cid'];
  58                                                 break;
  59                                         }
  60                                 }
  61                         }
  62
  63                         if ($contact_id > 0) {
  64                                 $r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
  65                                         intval($contact_id),
  66                                         intval($page_owner_uid)
  67                                 );
  68
  69                                 if (DBA::isResult($r)) {
  70                                         $can_post = true;
  71                                         $visitor = $contact_id;
  72                                 }
  73                         }
  74                 }
  75         }
  76
  77         if (! $can_post) {
  78                 if ($r_json) {
  79                         echo json_encode(['error' => L10n::t('Permission denied.')]);
  80                         exit();
  81                 }
  82                 notice(L10n::t('Permission denied.') . EOL );
  83                 exit();
  84         }
  85
  86         if (empty($_FILES['userfile'])) {
  87                 if ($r_json) {
  88                         echo json_encode(['error' => L10n::t('Invalid request.')]);
  89                 }
  90                 exit();
  91         }
  92
  93         $src      = $_FILES['userfile']['tmp_name'];
  94         $filename = basename($_FILES['userfile']['name']);
  95         $filesize = intval($_FILES['userfile']['size']);
  96
  97         $maxfilesize = Config::get('system','maxfilesize');
  98
  99         /* Found html code written in text field of form,
 100          * when trying to upload a file with filesize
 101          * greater than upload_max_filesize. Cause is unknown.
 102          * Then Filesize gets <= 0.
 103          */
 104
 105         if ($filesize <= 0) {
 106                 $msg = L10n::t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(L10n::t('Or - did you try to upload an empty file?'));
 107                 if ($r_json) {
 108                         echo json_encode(['error' => $msg]);
 109                 } else {
 110                         notice($msg . EOL);
 111                 }
 112                 @unlink($src);
 113                 exit();
 114         }
 115
 116         if ($maxfilesize && $filesize > $maxfilesize) {
 117                 $msg = L10n::t('File exceeds size limit of %s', Strings::formatBytes($maxfilesize));
 118                 if ($r_json) {
 119                         echo json_encode(['error' => $msg]);
 120                 } else {
 121                         echo $msg . EOL;
 122                 }
 123                 @unlink($src);
 124                 exit();
 125         }
 126
 127         $newid = Attach::storeFile($src, $page_owner_uid, $filename, '<' . $page_owner_cid . '>');
 128
 129         @unlink($src);
 130
 131         if ($newid === false) {
 132                 $msg =  L10n::t('File upload failed.');
 133                 if ($r_json) {
 134                         echo json_encode(['error' => $msg]);
 135                 } else {
 136                         echo $msg . EOL;
 137                 }
 138                 exit();
 139         }
 140
 141         if ($r_json) {
 142                 echo json_encode(['ok' => true, 'id' => $newid]);
 143                 exit();
 144         }
 145
 146         $lf = "\n";
 147
 148         echo  $lf . $lf . '[attachment]' . $newid . '[/attachment]' . $lf;
 149
 150         exit();
 151         // NOTREACHED
 152 }