mod/receive.php

   1 <?php
   2 /**
   3  * @file mod/receive.php
   4  * @brief Diaspora endpoint
   5  */
   6
   7 use Friendica\App;
   8 use Friendica\Core\Config;
   9 use Friendica\Core\System;
  10 use Friendica\Database\DBA;
  11 use Friendica\Protocol\Diaspora;
  12
  13 /**
  14  * @param object $a App
  15  * @return void
  16  */
  17 function receive_post(App $a)
  18 {
  19         $enabled = intval(Config::get('system', 'diaspora_enabled'));
  20         if (!$enabled) {
  21                 logger('mod-diaspora: disabled');
  22                 System::httpExit(500);
  23         }
  24
  25         if (($a->argc == 2) && ($a->argv[1] === 'public')) {
  26                 $public = true;
  27                 $importer = [];
  28         } else {
  29                 $public = false;
  30
  31                 if ($a->argc != 3 || $a->argv[1] !== 'users') {
  32                         System::httpExit(500);
  33                 }
  34                 $guid = $a->argv[2];
  35
  36                 $importer = DBA::selectFirst('user', [], ['guid' => $guid, 'account_expired' => false, 'account_removed' => false]);
  37                 if (!DBA::isResult($importer)) {
  38                         System::httpExit(500);
  39                 }
  40         }
  41
  42         // It is an application/x-www-form-urlencoded
  43
  44         logger('mod-diaspora: receiving post', LOGGER_DEBUG);
  45
  46         if (empty($_POST['xml'])) {
  47                 $postdata = file_get_contents("php://input");
  48                 if ($postdata == '') {
  49                         System::httpExit(500);
  50                 }
  51
  52                 logger('mod-diaspora: message is in the new format', LOGGER_DEBUG);
  53                 $msg = Diaspora::decodeRaw($importer, $postdata);
  54         } else {
  55                 $xml = urldecode($_POST['xml']);
  56
  57                 logger('mod-diaspora: decode message in the old format', LOGGER_DEBUG);
  58                 $msg = Diaspora::decode($importer, $xml);
  59
  60                 if ($public && !$msg) {
  61                         logger('mod-diaspora: decode message in the new format', LOGGER_DEBUG);
  62                         $msg = Diaspora::decodeRaw($importer, $xml);
  63                 }
  64         }
  65
  66         logger('mod-diaspora: decoded', LOGGER_DEBUG);
  67
  68         logger('mod-diaspora: decoded msg: ' . print_r($msg, true), LOGGER_DATA);
  69
  70         if (!is_array($msg)) {
  71                 System::httpExit(500);
  72         }
  73
  74         logger('mod-diaspora: dispatching', LOGGER_DEBUG);
  75
  76         $ret = true;
  77         if ($public) {
  78                 Diaspora::dispatchPublic($msg);
  79         } else {
  80                 $ret = Diaspora::dispatch($importer, $msg);
  81         }
  82
  83         System::httpExit(($ret) ? 200 : 500);
  84         // NOTREACHED
  85 }