mod/wall_attach.php

   1 <?php
   2
   3 use Friendica\App;
   4 use Friendica\Core\Config;
   5 use Friendica\Database\DBM;
   6
   7 require_once('include/attach.php');
   8 require_once('include/datetime.php');
   9
  10 function wall_attach_post(App $a) {
  11
  12         $r_json = (x($_GET,'response') && $_GET['response']=='json');
  13
  14         if($a->argc > 1) {
  15                 $nick = $a->argv[1];
  16                 $r = q("SELECT `user`.*, `contact`.`id` FROM `user` LEFT JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
  17                         dbesc($nick)
  18                 );
  19                 if (! DBM::is_result($r)) {
  20                         if ($r_json) {
  21                                 echo json_encode(array('error'=>t('Invalid request.')));
  22                                 killme();
  23                         }
  24                         return;
  25         }
  26
  27         } else {
  28                 if ($r_json) {
  29                         echo json_encode(array('error'=>t('Invalid request.')));
  30                         killme();
  31                 }
  32                 return;
  33         }
  34
  35         $can_post  = false;
  36         $visitor   = 0;
  37
  38         $page_owner_uid   = $r[0]['uid'];
  39         $page_owner_cid   = $r[0]['id'];
  40         $page_owner_nick  = $r[0]['nickname'];
  41         $community_page   = (($r[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
  42
  43         if((local_user()) && (local_user() == $page_owner_uid))
  44                 $can_post = true;
  45         else {
  46                 if($community_page && remote_user()) {
  47                         $contact_id = 0;
  48                         if(is_array($_SESSION['remote'])) {
  49                                 foreach($_SESSION['remote'] as $v) {
  50                                         if($v['uid'] == $page_owner_uid) {
  51                                                 $contact_id = $v['cid'];
  52                                                 break;
  53                                         }
  54                                 }
  55                         }
  56                         if($contact_id) {
  57
  58                                 $r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
  59                                         intval($contact_id),
  60                                         intval($page_owner_uid)
  61                                 );
  62                                 if (DBM::is_result($r)) {
  63                                         $can_post = true;
  64                                         $visitor = $contact_id;
  65                                 }
  66                         }
  67                 }
  68         }
  69         if(! $can_post) {
  70                 if ($r_json) {
  71                         echo json_encode(array('error'=>t('Permission denied.')));
  72                         killme();
  73                 }
  74                 notice( t('Permission denied.') . EOL );
  75                 killme();
  76         }
  77
  78         if(! x($_FILES,'userfile')) {
  79                 if ($r_json) {
  80                         echo json_encode(array('error'=>t('Invalid request.')));
  81                 }
  82                 killme();
  83         }
  84
  85         $src      = $_FILES['userfile']['tmp_name'];
  86         $filename = basename($_FILES['userfile']['name']);
  87         $filesize = intval($_FILES['userfile']['size']);
  88
  89         $maxfilesize = Config::get('system','maxfilesize');
  90
  91         /* Found html code written in text field of form,
  92          * when trying to upload a file with filesize
  93          * greater than upload_max_filesize. Cause is unknown.
  94          * Then Filesize gets <= 0.
  95          */
  96
  97         if($filesize <=0) {
  98                 $msg = t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(t('Or - did you try to upload an empty file?'));
  99                 if ($r_json) {
 100                         echo json_encode(array('error'=>$msg));
 101                 } else {
 102                         notice( $msg. EOL );
 103                 }
 104                 @unlink($src);
 105                 killme();
 106         }
 107
 108         if(($maxfilesize) && ($filesize > $maxfilesize)) {
 109                 $msg = sprintf(t('File exceeds size limit of %s'), formatBytes($maxfilesize));
 110                 if ($r_json) {
 111                         echo json_encode(array('error'=>$msg));
 112                 } else {
 113                         echo  $msg. EOL ;
 114                 }
 115                 @unlink($src);
 116                 killme();
 117         }
 118
 119         $filedata = @file_get_contents($src);
 120         $mimetype = z_mime_content_type($filename);
 121         $hash = get_guid(64);
 122         $created = datetime_convert();
 123
 124         $fields = array('uid' => $page_owner_uid, 'hash' => $hash, 'filename' => $filename, 'filetype' => $mimetype,
 125                 'filesize' => $filesize, 'data' => $filedata, 'created' => $created, 'edited' => $created,
 126                 'allow_cid' => '<' . $page_owner_cid . '>', 'allow_gid' => '','deny_cid' => '', 'deny_gid' => '');
 127
 128         $r = dba::insert('attach', $fields);
 129
 130         @unlink($src);
 131
 132         if(! $r) {
 133                 $msg =  t('File upload failed.');
 134                 if ($r_json) {
 135                         echo json_encode(array('error'=>$msg));
 136                 } else {
 137                         echo  $msg. EOL ;
 138                 }
 139                 killme();
 140         }
 141
 142         $r = q("SELECT `id` FROM `attach` WHERE `uid` = %d AND `created` = '%s' AND `hash` = '%s' LIMIT 1",
 143                 intval($page_owner_uid),
 144                 dbesc($created),
 145                 dbesc($hash)
 146         );
 147
 148         if (! DBM::is_result($r)) {
 149                 $msg = t('File upload failed.');
 150                 if ($r_json) {
 151                         echo json_encode(array('error'=>$msg));
 152                 } else {
 153                         echo  $msg. EOL ;
 154                 }
 155                 killme();
 156         }
 157
 158         if ($r_json) {
 159                 echo json_encode(array('ok'=>true));
 160                 killme();
 161         }
 162
 163         $lf = "\n";
 164
 165         echo  $lf . $lf . '[attachment]' . $r[0]['id'] . '[/attachment]' . $lf;
 166
 167         killme();
 168         // NOTREACHED
 169 }