mod/wall_attach.php

   1 <?php
   2
   3 require_once('include/attach.php');
   4 require_once('include/datetime.php');
   5
   6 function wall_attach_post(&$a) {
   7
   8         $r_json = (x($_GET,'response') && $_GET['response']=='json');
   9
  10         if($a->argc > 1) {
  11                 $nick = $a->argv[1];
  12                 $r = q("SELECT `user`.*, `contact`.`id` FROM `user` LEFT JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
  13                         dbesc($nick)
  14                 );
  15                 if(! count($r)){
  16                         if ($r_json) {
  17                             echo json_encode(array('error'=>t('Invalid request.')));
  18                             killme();
  19                         }
  20                         return;
  21         }
  22
  23         } else {
  24                 if ($r_json) {
  25                     echo json_encode(array('error'=>t('Invalid request.')));
  26                     killme();
  27                 }
  28                 return;
  29     }
  30
  31         $can_post  = false;
  32         $visitor   = 0;
  33
  34         $page_owner_uid   = $r[0]['uid'];
  35         $page_owner_cid   = $r[0]['id'];
  36         $page_owner_nick  = $r[0]['nickname'];
  37         $community_page   = (($r[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
  38
  39         if((local_user()) && (local_user() == $page_owner_uid))
  40                 $can_post = true;
  41         else {
  42                 if($community_page && remote_user()) {
  43                         $cid = 0;
  44                         if(is_array($_SESSION['remote'])) {
  45                                 foreach($_SESSION['remote'] as $v) {
  46                                         if($v['uid'] == $page_owner_uid) {
  47                                                 $cid = $v['cid'];
  48                                                 break;
  49                                         }
  50                                 }
  51                         }
  52                         if($cid) {
  53
  54                                 $r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
  55                                         intval($cid),
  56                                         intval($page_owner_uid)
  57                                 );
  58                                 if(count($r)) {
  59                                         $can_post = true;
  60                                         $visitor = $cid;
  61                                 }
  62                         }
  63                 }
  64         }
  65         if(! $can_post) {
  66                 if ($r_json) {
  67                     echo json_encode(array('error'=>t('Permission denied.')));
  68                     killme();
  69                 }
  70                 notice( t('Permission denied.') . EOL );
  71                 killme();
  72         }
  73
  74         if(! x($_FILES,'userfile')) {
  75                 if ($r_json) {
  76                     echo json_encode(array('error'=>t('Invalid request.')));
  77                 }
  78                 killme();
  79         }
  80
  81         $src      = $_FILES['userfile']['tmp_name'];
  82         $filename = basename($_FILES['userfile']['name']);
  83         $filesize = intval($_FILES['userfile']['size']);
  84
  85         $maxfilesize = get_config('system','maxfilesize');
  86
  87         /* Found html code written in text field of form,
  88          * when trying to upload a file with filesize
  89          * greater than upload_max_filesize. Cause is unknown.
  90          * Then Filesize gets <= 0.
  91          */
  92
  93         if($filesize <=0) {
  94                 $msg = t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(t('Or - did you try to upload an empty file?'));
  95                 if ($r_json) {
  96                         echo json_encode(array('error'=>$msg));
  97                 } else {
  98                         notice( $msg. EOL );
  99                 }
 100                 @unlink($src);
 101                 killme();
 102         }
 103
 104         if(($maxfilesize) && ($filesize > $maxfilesize)) {
 105                 $msg = sprintf(t('File exceeds size limit of %s'), formatBytes($maxfilesize));
 106                 if ($r_json) {
 107                         echo json_encode(array('error'=>$msg));
 108                 } else {
 109                         echo  $msg. EOL ;
 110                 }
 111                 @unlink($src);
 112                 killme();
 113         }
 114
 115         $r = q("select sum(octet_length(data)) as total from attach where uid = %d ",
 116                 intval($page_owner_uid)
 117         );
 118
 119         $limit = service_class_fetch($page_owner_uid,'attach_upload_limit');
 120
 121         if(($limit !== false) && (($r[0]['total'] + strlen($imagedata)) > $limit)) {
 122                 $msg = upgrade_message(true);
 123                 if ($r_json) {
 124                         echo json_encode(array('error'=>$msg));
 125                 } else {
 126                         echo  $msg. EOL ;
 127                 }
 128                 @unlink($src);
 129                 killme();
 130         }
 131
 132
 133         $filedata = @file_get_contents($src);
 134         $mimetype = z_mime_content_type($filename);
 135         $hash = get_guid(64);
 136         $created = datetime_convert();
 137         $r = q("INSERT INTO `attach` ( `uid`, `hash`, `filename`, `filetype`, `filesize`, `data`, `created`, `edited`, `allow_cid`, `allow_gid`,`deny_cid`, `deny_gid` )
 138                 VALUES ( %d, '%s', '%s', '%s', %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s' ) ",
 139                 intval($page_owner_uid),
 140                 dbesc($hash),
 141                 dbesc($filename),
 142                 dbesc($mimetype),
 143                 intval($filesize),
 144                 dbesc($filedata),
 145                 dbesc($created),
 146                 dbesc($created),
 147                 dbesc('<' . $page_owner_cid . '>'),
 148                 dbesc(''),
 149                 dbesc(''),
 150                 dbesc('')
 151         );
 152
 153         @unlink($src);
 154
 155         if(! $r) {
 156                 $msg =  t('File upload failed.');
 157                 if ($r_json) {
 158                         echo json_encode(array('error'=>$msg));
 159                 } else {
 160                         echo  $msg. EOL ;
 161                 }
 162                 killme();
 163         }
 164
 165         $r = q("SELECT `id` FROM `attach` WHERE `uid` = %d AND `created` = '%s' AND `hash` = '%s' LIMIT 1",
 166                 intval($page_owner_uid),
 167                 dbesc($created),
 168                 dbesc($hash)
 169         );
 170
 171         if(! count($r)) {
 172                 $msg = t('File upload failed.');
 173                 if ($r_json) {
 174                         echo json_encode(array('error'=>$msg));
 175                 } else {
 176                         echo  $msg. EOL ;
 177                 }
 178                 killme();
 179         }
 180
 181         if ($r_json) {
 182             echo json_encode(array('ok'=>true));
 183             killme();
 184         }
 185
 186         $lf = "\n";
 187
 188         echo  $lf . $lf . '[attachment]' . $r[0]['id'] . '[/attachment]' . $lf;
 189
 190         killme();
 191         // NOTREACHED
 192 }