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