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 use Friendica\Util\Strings;
  15
  16 function wall_attach_post(App $a) {
  17
  18         $r_json = (!empty($_GET['response']) && $_GET['response']=='json');
  19
  20         if ($a->argc > 1) {
  21                 $nick = $a->argv[1];
  22                 $r = q("SELECT `user`.*, `contact`.`id` FROM `user` LEFT JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
  23                         DBA::escape($nick)
  24                 );
  25
  26                 if (! DBA::isResult($r)) {
  27                         if ($r_json) {
  28                                 echo json_encode(['error' => L10n::t('Invalid request.')]);
  29                                 killme();
  30                         }
  31                         return;
  32                 }
  33         } else {
  34                 if ($r_json) {
  35                         echo json_encode(['error' => L10n::t('Invalid request.')]);
  36                         killme();
  37                 }
  38
  39                 return;
  40         }
  41
  42         $can_post  = false;
  43         $visitor   = 0;
  44
  45         $page_owner_uid   = $r[0]['uid'];
  46         $page_owner_cid   = $r[0]['id'];
  47         $page_owner_nick  = $r[0]['nickname'];
  48         $community_page   = (($r[0]['page-flags'] == Contact::PAGE_COMMUNITY) ? true : false);
  49
  50         if ((local_user()) && (local_user() == $page_owner_uid)) {
  51                 $can_post = true;
  52         } else {
  53                 if ($community_page && remote_user()) {
  54                         $contact_id = 0;
  55
  56                         if (is_array($_SESSION['remote'])) {
  57                                 foreach ($_SESSION['remote'] as $v) {
  58                                         if ($v['uid'] == $page_owner_uid) {
  59                                                 $contact_id = $v['cid'];
  60                                                 break;
  61                                         }
  62                                 }
  63                         }
  64
  65                         if ($contact_id > 0) {
  66                                 $r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
  67                                         intval($contact_id),
  68                                         intval($page_owner_uid)
  69                                 );
  70
  71                                 if (DBA::isResult($r)) {
  72                                         $can_post = true;
  73                                         $visitor = $contact_id;
  74                                 }
  75                         }
  76                 }
  77         }
  78
  79         if (! $can_post) {
  80                 if ($r_json) {
  81                         echo json_encode(['error' => L10n::t('Permission denied.')]);
  82                         killme();
  83                 }
  84                 notice(L10n::t('Permission denied.') . EOL );
  85                 killme();
  86         }
  87
  88         if (empty($_FILES['userfile'])) {
  89                 if ($r_json) {
  90                         echo json_encode(['error' => L10n::t('Invalid request.')]);
  91                 }
  92                 killme();
  93         }
  94
  95         $src      = $_FILES['userfile']['tmp_name'];
  96         $filename = basename($_FILES['userfile']['name']);
  97         $filesize = intval($_FILES['userfile']['size']);
  98
  99         $maxfilesize = Config::get('system','maxfilesize');
 100
 101         /* Found html code written in text field of form,
 102          * when trying to upload a file with filesize
 103          * greater than upload_max_filesize. Cause is unknown.
 104          * Then Filesize gets <= 0.
 105          */
 106
 107         if ($filesize <= 0) {
 108                 $msg = L10n::t('Sorry, maybe your upload is bigger than the PHP configuration allows') . EOL .(L10n::t('Or - did you try to upload an empty file?'));
 109                 if ($r_json) {
 110                         echo json_encode(['error' => $msg]);
 111                 } else {
 112                         notice($msg . EOL);
 113                 }
 114                 @unlink($src);
 115                 killme();
 116         }
 117
 118         if ($maxfilesize && $filesize > $maxfilesize) {
 119                 $msg = L10n::t('File exceeds size limit of %s', Strings::formatBytes($maxfilesize));
 120                 if ($r_json) {
 121                         echo json_encode(['error' => $msg]);
 122                 } else {
 123                         echo $msg . EOL;
 124                 }
 125                 @unlink($src);
 126                 killme();
 127         }
 128
 129         $filedata = @file_get_contents($src);
 130         $mimetype = Mimetype::getContentType($filename);
 131         $hash = System::createGUID(64);
 132         $created = DateTimeFormat::utcNow();
 133
 134         $fields = ['uid' => $page_owner_uid, 'hash' => $hash, 'filename' => $filename, 'filetype' => $mimetype,
 135                 'filesize' => $filesize, 'data' => $filedata, 'created' => $created, 'edited' => $created,
 136                 'allow_cid' => '<' . $page_owner_cid . '>', 'allow_gid' => '','deny_cid' => '', 'deny_gid' => ''];
 137
 138         $r = DBA::insert('attach', $fields);
 139
 140         @unlink($src);
 141
 142         if (! $r) {
 143                 $msg =  L10n::t('File upload failed.');
 144                 if ($r_json) {
 145                         echo json_encode(['error' => $msg]);
 146                 } else {
 147                         echo $msg . EOL;
 148                 }
 149                 killme();
 150         }
 151
 152         $r = q("SELECT `id` FROM `attach` WHERE `uid` = %d AND `created` = '%s' AND `hash` = '%s' LIMIT 1",
 153                 intval($page_owner_uid),
 154                 DBA::escape($created),
 155                 DBA::escape($hash)
 156         );
 157
 158         if (! DBA::isResult($r)) {
 159                 $msg = L10n::t('File upload failed.');
 160                 if ($r_json) {
 161                         echo json_encode(['error' => $msg]);
 162                 } else {
 163                         echo $msg . EOL;
 164                 }
 165                 killme();
 166         }
 167
 168         if ($r_json) {
 169                 echo json_encode(['ok' => true]);
 170                 killme();
 171         }
 172
 173         $lf = "\n";
 174
 175         echo  $lf . $lf . '[attachment]' . $r[0]['id'] . '[/attachment]' . $lf;
 176
 177         killme();
 178         // NOTREACHED
 179 }