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\System;
  10 use Friendica\Database\DBM;
  11 use Friendica\Util\DateTimeFormat;
  12 use Friendica\Util\Mimetype;
  13
  14 function wall_attach_post(App $a) {
  15
  16         $r_json = (x($_GET,'response') && $_GET['response']=='json');
  17
  18         if($a->argc > 1) {
  19                 $nick = $a->argv[1];
  20                 $r = q("SELECT `user`.*, `contact`.`id` FROM `user` LEFT JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
  21                         dbesc($nick)
  22                 );
  23                 if (! DBM::is_result($r)) {
  24                         if ($r_json) {
  25                                 echo json_encode(['error'=>L10n::t('Invalid request.')]);
  26                                 killme();
  27                         }
  28                         return;
  29         }
  30
  31         } else {
  32                 if ($r_json) {
  33                         echo json_encode(['error'=>L10n::t('Invalid request.')]);
  34                         killme();
  35                 }
  36                 return;
  37         }
  38
  39         $can_post  = false;
  40         $visitor   = 0;
  41
  42         $page_owner_uid   = $r[0]['uid'];
  43         $page_owner_cid   = $r[0]['id'];
  44         $page_owner_nick  = $r[0]['nickname'];
  45         $community_page   = (($r[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
  46
  47         if((local_user()) && (local_user() == $page_owner_uid))
  48                 $can_post = true;
  49         else {
  50                 if($community_page && remote_user()) {
  51                         $contact_id = 0;
  52                         if(is_array($_SESSION['remote'])) {
  53                                 foreach($_SESSION['remote'] as $v) {
  54                                         if($v['uid'] == $page_owner_uid) {
  55                                                 $contact_id = $v['cid'];
  56                                                 break;
  57                                         }
  58                                 }
  59                         }
  60                         if($contact_id) {
  61
  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($page_owner_uid)
  65                                 );
  66                                 if (DBM::is_result($r)) {
  67                                         $can_post = true;
  68                                         $visitor = $contact_id;
  69                                 }
  70                         }
  71                 }
  72         }
  73         if(! $can_post) {
  74                 if ($r_json) {
  75                         echo json_encode(['error'=>L10n::t('Permission denied.')]);
  76                         killme();
  77                 }
  78                 notice(L10n::t('Permission denied.') . EOL );
  79                 killme();
  80         }
  81
  82         if(! x($_FILES,'userfile')) {
  83                 if ($r_json) {
  84                         echo json_encode(['error'=>L10n::t('Invalid request.')]);
  85                 }
  86                 killme();
  87         }
  88
  89         $src      = $_FILES['userfile']['tmp_name'];
  90         $filename = basename($_FILES['userfile']['name']);
  91         $filesize = intval($_FILES['userfile']['size']);
  92
  93         $maxfilesize = Config::get('system','maxfilesize');
  94
  95         /* Found html code written in text field of form,
  96          * when trying to upload a file with filesize
  97          * greater than upload_max_filesize. Cause is unknown.
  98          * Then Filesize gets <= 0.
  99          */
 100
 101         if($filesize <=0) {
 102                 $msg = L10n::t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(L10n::t('Or - did you try to upload an empty file?'));
 103                 if ($r_json) {
 104                         echo json_encode(['error'=>$msg]);
 105                 } else {
 106                         notice( $msg. EOL );
 107                 }
 108                 @unlink($src);
 109                 killme();
 110         }
 111
 112         if(($maxfilesize) && ($filesize > $maxfilesize)) {
 113                 $msg = L10n::t('File exceeds size limit of %s', formatBytes($maxfilesize));
 114                 if ($r_json) {
 115                         echo json_encode(['error'=>$msg]);
 116                 } else {
 117                         echo  $msg. EOL ;
 118                 }
 119                 @unlink($src);
 120                 killme();
 121         }
 122
 123         $filedata = @file_get_contents($src);
 124         $mimetype = Mimetype::getContentType($filename);
 125         $hash = System::createGUID(64);
 126         $created = DateTimeFormat::utcNow();
 127
 128         $fields = ['uid' => $page_owner_uid, 'hash' => $hash, 'filename' => $filename, 'filetype' => $mimetype,
 129                 'filesize' => $filesize, 'data' => $filedata, 'created' => $created, 'edited' => $created,
 130                 'allow_cid' => '<' . $page_owner_cid . '>', 'allow_gid' => '','deny_cid' => '', 'deny_gid' => ''];
 131
 132         $r = dba::insert('attach', $fields);
 133
 134         @unlink($src);
 135
 136         if(! $r) {
 137                 $msg =  L10n::t('File upload failed.');
 138                 if ($r_json) {
 139                         echo json_encode(['error'=>$msg]);
 140                 } else {
 141                         echo  $msg. EOL ;
 142                 }
 143                 killme();
 144         }
 145
 146         $r = q("SELECT `id` FROM `attach` WHERE `uid` = %d AND `created` = '%s' AND `hash` = '%s' LIMIT 1",
 147                 intval($page_owner_uid),
 148                 dbesc($created),
 149                 dbesc($hash)
 150         );
 151
 152         if (! DBM::is_result($r)) {
 153                 $msg = L10n::t('File upload failed.');
 154                 if ($r_json) {
 155                         echo json_encode(['error'=>$msg]);
 156                 } else {
 157                         echo  $msg. EOL ;
 158                 }
 159                 killme();
 160         }
 161
 162         if ($r_json) {
 163                 echo json_encode(['ok'=>true]);
 164                 killme();
 165         }
 166
 167         $lf = "\n";
 168
 169         echo  $lf . $lf . '[attachment]' . $r[0]['id'] . '[/attachment]' . $lf;
 170
 171         killme();
 172         // NOTREACHED
 173 }