mod/wall_attach.php

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