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\Contact;
  12 use Friendica\Util\DateTimeFormat;
  13 use Friendica\Util\Mimetype;
  14
  15 function wall_attach_post(App $a) {
  16
  17         $r_json = (x($_GET,'response') && $_GET['response']=='json');
  18
  19         if ($a->argc > 1) {
  20                 $nick = $a->argv[1];
  21                 $r = q("SELECT `user`.*, `contact`.`id` FROM `user` LEFT JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
  22                         DBA::escape($nick)
  23                 );
  24
  25                 if (! DBA::isResult($r)) {
  26                         if ($r_json) {
  27                                 echo json_encode(['error' => L10n::t('Invalid request.')]);
  28                                 killme();
  29                         }
  30                         return;
  31                 }
  32         } else {
  33                 if ($r_json) {
  34                         echo json_encode(['error' => L10n::t('Invalid request.')]);
  35                         killme();
  36                 }
  37
  38                 return;
  39         }
  40
  41         $can_post  = false;
  42         $visitor   = 0;
  43
  44         $page_owner_uid   = $r[0]['uid'];
  45         $page_owner_cid   = $r[0]['id'];
  46         $page_owner_nick  = $r[0]['nickname'];
  47         $community_page   = (($r[0]['page-flags'] == Contact::PAGE_COMMUNITY) ? true : false);
  48
  49         if ((local_user()) && (local_user() == $page_owner_uid)) {
  50                 $can_post = true;
  51         } else {
  52                 if ($community_page && remote_user()) {
  53                         $contact_id = 0;
  54
  55                         if (is_array($_SESSION['remote'])) {
  56                                 foreach ($_SESSION['remote'] as $v) {
  57                                         if ($v['uid'] == $page_owner_uid) {
  58                                                 $contact_id = $v['cid'];
  59                                                 break;
  60                                         }
  61                                 }
  62                         }
  63
  64                         if ($contact_id > 0) {
  65                                 $r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
  66                                         intval($contact_id),
  67                                         intval($page_owner_uid)
  68                                 );
  69
  70                                 if (DBA::isResult($r)) {
  71                                         $can_post = true;
  72                                         $visitor = $contact_id;
  73                                 }
  74                         }
  75                 }
  76         }
  77
  78         if (! $can_post) {
  79                 if ($r_json) {
  80                         echo json_encode(['error' => L10n::t('Permission denied.')]);
  81                         killme();
  82                 }
  83                 notice(L10n::t('Permission denied.') . EOL );
  84                 killme();
  85         }
  86
  87         if (! x($_FILES,'userfile')) {
  88                 if ($r_json) {
  89                         echo json_encode(['error' => L10n::t('Invalid request.')]);
  90                 }
  91                 killme();
  92         }
  93
  94         $src      = $_FILES['userfile']['tmp_name'];
  95         $filename = basename($_FILES['userfile']['name']);
  96         $filesize = intval($_FILES['userfile']['size']);
  97
  98         $maxfilesize = Config::get('system','maxfilesize');
  99
 100         /* Found html code written in text field of form,
 101          * when trying to upload a file with filesize
 102          * greater than upload_max_filesize. Cause is unknown.
 103          * Then Filesize gets <= 0.
 104          */
 105
 106         if ($filesize <= 0) {
 107                 $msg = L10n::t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(L10n::t('Or - did you try to upload an empty file?'));
 108                 if ($r_json) {
 109                         echo json_encode(['error' => $msg]);
 110                 } else {
 111                         notice($msg . EOL);
 112                 }
 113                 @unlink($src);
 114                 killme();
 115         }
 116
 117         if ($maxfilesize && $filesize > $maxfilesize) {
 118                 $msg = L10n::t('File exceeds size limit of %s', formatBytes($maxfilesize));
 119                 if ($r_json) {
 120                         echo json_encode(['error' => $msg]);
 121                 } else {
 122                         echo $msg . EOL ;
 123                 }
 124                 @unlink($src);
 125                 killme();
 126         }
 127
 128         $filedata = @file_get_contents($src);
 129         $mimetype = Mimetype::getContentType($filename);
 130         $hash = System::createGUID(64);
 131         $created = DateTimeFormat::utcNow();
 132
 133         $fields = ['uid' => $page_owner_uid, 'hash' => $hash, 'filename' => $filename, 'filetype' => $mimetype,
 134                 'filesize' => $filesize, 'data' => $filedata, 'created' => $created, 'edited' => $created,
 135                 'allow_cid' => '<' . $page_owner_cid . '>', 'allow_gid' => '','deny_cid' => '', 'deny_gid' => ''];
 136
 137         $r = DBA::insert('attach', $fields);
 138
 139         @unlink($src);
 140
 141         if (! $r) {
 142                 $msg =  L10n::t('File upload failed.');
 143                 if ($r_json) {
 144                         echo json_encode(['error' => $msg]);
 145                 } else {
 146                         echo $msg . EOL ;
 147                 }
 148                 killme();
 149         }
 150
 151         $r = q("SELECT `id` FROM `attach` WHERE `uid` = %d AND `created` = '%s' AND `hash` = '%s' LIMIT 1",
 152                 intval($page_owner_uid),
 153                 DBA::escape($created),
 154                 DBA::escape($hash)
 155         );
 156
 157         if (! DBA::isResult($r)) {
 158                 $msg = L10n::t('File upload failed.');
 159                 if ($r_json) {
 160                         echo json_encode(['error' => $msg]);
 161                 } else {
 162                         echo $msg . EOL ;
 163                 }
 164                 killme();
 165         }
 166
 167         if ($r_json) {
 168                 echo json_encode(['ok' => true]);
 169                 killme();
 170         }
 171
 172         $lf = "\n";
 173
 174         echo  $lf . $lf . '[attachment]' . $r[0]['id'] . '[/attachment]' . $lf;
 175
 176         killme();
 177         // NOTREACHED
 178 }