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\DBA;
  11 use Friendica\Database\DBM;
  12 use Friendica\Util\DateTimeFormat;
  13 use Friendica\Util\Mimetype;
  14
  15 function wall_attach_post(App $a) {
  16
  17         $r_json = (x($_GET,'response') && $_GET['response']=='json');
  18
  19         if($a->argc > 1) {
  20                 $nick = $a->argv[1];
  21                 $r = q("SELECT `user`.*, `contact`.`id` FROM `user` LEFT JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
  22                         dbesc($nick)
  23                 );
  24                 if (! DBM::is_result($r)) {
  25                         if ($r_json) {
  26                                 echo json_encode(['error'=>L10n::t('Invalid request.')]);
  27                                 killme();
  28                         }
  29                         return;
  30         }
  31
  32         } else {
  33                 if ($r_json) {
  34                         echo json_encode(['error'=>L10n::t('Invalid request.')]);
  35                         killme();
  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'] == 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                         $contact_id = 0;
  53                         if(is_array($_SESSION['remote'])) {
  54                                 foreach($_SESSION['remote'] as $v) {
  55                                         if($v['uid'] == $page_owner_uid) {
  56                                                 $contact_id = $v['cid'];
  57                                                 break;
  58                                         }
  59                                 }
  60                         }
  61                         if($contact_id) {
  62
  63                                 $r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
  64                                         intval($contact_id),
  65                                         intval($page_owner_uid)
  66                                 );
  67                                 if (DBM::is_result($r)) {
  68                                         $can_post = true;
  69                                         $visitor = $contact_id;
  70                                 }
  71                         }
  72                 }
  73         }
  74         if(! $can_post) {
  75                 if ($r_json) {
  76                         echo json_encode(['error'=>L10n::t('Permission denied.')]);
  77                         killme();
  78                 }
  79                 notice(L10n::t('Permission denied.') . EOL );
  80                 killme();
  81         }
  82
  83         if(! x($_FILES,'userfile')) {
  84                 if ($r_json) {
  85                         echo json_encode(['error'=>L10n::t('Invalid request.')]);
  86                 }
  87                 killme();
  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                 killme();
 111         }
 112
 113         if(($maxfilesize) && ($filesize > $maxfilesize)) {
 114                 $msg = L10n::t('File exceeds size limit of %s', formatBytes($maxfilesize));
 115                 if ($r_json) {
 116                         echo json_encode(['error'=>$msg]);
 117                 } else {
 118                         echo  $msg. EOL ;
 119                 }
 120                 @unlink($src);
 121                 killme();
 122         }
 123
 124         $filedata = @file_get_contents($src);
 125         $mimetype = Mimetype::getContentType($filename);
 126         $hash = System::createGUID(64);
 127         $created = DateTimeFormat::utcNow();
 128
 129         $fields = ['uid' => $page_owner_uid, 'hash' => $hash, 'filename' => $filename, 'filetype' => $mimetype,
 130                 'filesize' => $filesize, 'data' => $filedata, 'created' => $created, 'edited' => $created,
 131                 'allow_cid' => '<' . $page_owner_cid . '>', 'allow_gid' => '','deny_cid' => '', 'deny_gid' => ''];
 132
 133         $r = DBA::insert('attach', $fields);
 134
 135         @unlink($src);
 136
 137         if(! $r) {
 138                 $msg =  L10n::t('File upload failed.');
 139                 if ($r_json) {
 140                         echo json_encode(['error'=>$msg]);
 141                 } else {
 142                         echo  $msg. EOL ;
 143                 }
 144                 killme();
 145         }
 146
 147         $r = q("SELECT `id` FROM `attach` WHERE `uid` = %d AND `created` = '%s' AND `hash` = '%s' LIMIT 1",
 148                 intval($page_owner_uid),
 149                 dbesc($created),
 150                 dbesc($hash)
 151         );
 152
 153         if (! DBM::is_result($r)) {
 154                 $msg = L10n::t('File upload failed.');
 155                 if ($r_json) {
 156                         echo json_encode(['error'=>$msg]);
 157                 } else {
 158                         echo  $msg. EOL ;
 159                 }
 160                 killme();
 161         }
 162
 163         if ($r_json) {
 164                 echo json_encode(['ok'=>true]);
 165                 killme();
 166         }
 167
 168         $lf = "\n";
 169
 170         echo  $lf . $lf . '[attachment]' . $r[0]['id'] . '[/attachment]' . $lf;
 171
 172         killme();
 173         // NOTREACHED
 174 }