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\Model\Attach;
  12 use Friendica\Model\Contact;
  13 use Friendica\Util\DateTimeFormat;
  14 use Friendica\Util\Mimetype;
  15 use Friendica\Util\Strings;
  16
  17 function wall_attach_post(App $a) {
  18
  19         $r_json = (!empty($_GET['response']) && $_GET['response']=='json');
  20
  21         if ($a->argc > 1) {
  22                 $nick = $a->argv[1];
  23                 $r = q("SELECT `user`.*, `contact`.`id` FROM `user` LEFT JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
  24                         DBA::escape($nick)
  25                 );
  26
  27                 if (! DBA::isResult($r)) {
  28                         if ($r_json) {
  29                                 echo json_encode(['error' => L10n::t('Invalid request.')]);
  30                                 exit();
  31                         }
  32                         return;
  33                 }
  34         } else {
  35                 if ($r_json) {
  36                         echo json_encode(['error' => L10n::t('Invalid request.')]);
  37                         exit();
  38                 }
  39
  40                 return;
  41         }
  42
  43         $can_post  = false;
  44         $visitor   = 0;
  45
  46         $page_owner_uid   = $r[0]['uid'];
  47         $page_owner_cid   = $r[0]['id'];
  48         $page_owner_nick  = $r[0]['nickname'];
  49         $community_page   = (($r[0]['page-flags'] == Contact::PAGE_COMMUNITY) ? true : false);
  50
  51         if ((local_user()) && (local_user() == $page_owner_uid)) {
  52                 $can_post = true;
  53         } else {
  54                 if ($community_page && remote_user()) {
  55                         $contact_id = 0;
  56
  57                         if (is_array($_SESSION['remote'])) {
  58                                 foreach ($_SESSION['remote'] as $v) {
  59                                         if ($v['uid'] == $page_owner_uid) {
  60                                                 $contact_id = $v['cid'];
  61                                                 break;
  62                                         }
  63                                 }
  64                         }
  65
  66                         if ($contact_id > 0) {
  67                                 $r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
  68                                         intval($contact_id),
  69                                         intval($page_owner_uid)
  70                                 );
  71
  72                                 if (DBA::isResult($r)) {
  73                                         $can_post = true;
  74                                         $visitor = $contact_id;
  75                                 }
  76                         }
  77                 }
  78         }
  79
  80         if (! $can_post) {
  81                 if ($r_json) {
  82                         echo json_encode(['error' => L10n::t('Permission denied.')]);
  83                         exit();
  84                 }
  85                 notice(L10n::t('Permission denied.') . EOL );
  86                 exit();
  87         }
  88
  89         if (empty($_FILES['userfile'])) {
  90                 if ($r_json) {
  91                         echo json_encode(['error' => L10n::t('Invalid request.')]);
  92                 }
  93                 exit();
  94         }
  95
  96         $src      = $_FILES['userfile']['tmp_name'];
  97         $filename = basename($_FILES['userfile']['name']);
  98         $filesize = intval($_FILES['userfile']['size']);
  99
 100         $maxfilesize = Config::get('system','maxfilesize');
 101
 102         /* Found html code written in text field of form,
 103          * when trying to upload a file with filesize
 104          * greater than upload_max_filesize. Cause is unknown.
 105          * Then Filesize gets <= 0.
 106          */
 107
 108         if ($filesize <= 0) {
 109                 $msg = L10n::t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(L10n::t('Or - did you try to upload an empty file?'));
 110                 if ($r_json) {
 111                         echo json_encode(['error' => $msg]);
 112                 } else {
 113                         notice($msg . EOL);
 114                 }
 115                 @unlink($src);
 116                 exit();
 117         }
 118
 119         if ($maxfilesize && $filesize > $maxfilesize) {
 120                 $msg = L10n::t('File exceeds size limit of %s', Strings::formatBytes($maxfilesize));
 121                 if ($r_json) {
 122                         echo json_encode(['error' => $msg]);
 123                 } else {
 124                         echo $msg . EOL;
 125                 }
 126                 @unlink($src);
 127                 exit();
 128         }
 129
 130         $newid = Attach::storeFile($src, $page_owner_uid, $filename, '<' . $page_owner_cid . '>');
 131
 132         @unlink($src);
 133
 134         if ($newid === false) {
 135                 $msg =  L10n::t('File upload failed.');
 136                 if ($r_json) {
 137                         echo json_encode(['error' => $msg]);
 138                 } else {
 139                         echo $msg . EOL;
 140                 }
 141                 exit();
 142         }
 143
 144         if ($r_json) {
 145                 echo json_encode(['ok' => true, 'id' => $newid]);
 146                 exit();
 147         }
 148
 149         $lf = "\n";
 150
 151         echo  $lf . $lf . '[attachment]' . $newid . '[/attachment]' . $lf;
 152
 153         exit();
 154         // NOTREACHED
 155 }