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\Logger;
  10 use Friendica\Core\System;
  11 use Friendica\Database\DBA;
  12 use Friendica\Protocol\Diaspora;
  13
  14 /**
  15  * @param object $a App
  16  * @return void
  17  */
  18 function receive_post(App $a)
  19 {
  20         $enabled = intval(Config::get('system', 'diaspora_enabled'));
  21         if (!$enabled) {
  22                 Logger::log('mod-diaspora: disabled');
  23                 System::httpExit(500);
  24         }
  25
  26         if (($a->argc == 2) && ($a->argv[1] === 'public')) {
  27                 $public = true;
  28                 $importer = [];
  29         } else {
  30                 $public = false;
  31
  32                 if ($a->argc != 3 || $a->argv[1] !== 'users') {
  33                         System::httpExit(500);
  34                 }
  35                 $guid = $a->argv[2];
  36
  37                 $importer = DBA::selectFirst('user', [], ['guid' => $guid, 'account_expired' => false, 'account_removed' => false]);
  38                 if (!DBA::isResult($importer)) {
  39                         System::httpExit(500);
  40                 }
  41         }
  42
  43         // It is an application/x-www-form-urlencoded
  44
  45         Logger::log('mod-diaspora: receiving post', Logger::DEBUG);
  46
  47         if (empty($_POST['xml'])) {
  48                 $postdata = file_get_contents("php://input");
  49                 if ($postdata == '') {
  50                         System::httpExit(500);
  51                 }
  52
  53                 Logger::log('mod-diaspora: message is in the new format', Logger::DEBUG);
  54                 $msg = Diaspora::decodeRaw($importer, $postdata);
  55         } else {
  56                 $xml = urldecode($_POST['xml']);
  57
  58                 Logger::log('mod-diaspora: decode message in the old format', Logger::DEBUG);
  59                 $msg = Diaspora::decode($importer, $xml);
  60
  61                 if ($public && !$msg) {
  62                         Logger::log('mod-diaspora: decode message in the new format', Logger::DEBUG);
  63                         $msg = Diaspora::decodeRaw($importer, $xml);
  64                 }
  65         }
  66
  67         Logger::log('mod-diaspora: decoded', Logger::DEBUG);
  68
  69         Logger::log('mod-diaspora: decoded msg: ' . print_r($msg, true), Logger::DATA);
  70
  71         if (!is_array($msg)) {
  72                 System::httpExit(500);
  73         }
  74
  75         Logger::log('mod-diaspora: dispatching', Logger::DEBUG);
  76
  77         $ret = true;
  78         if ($public) {
  79                 Diaspora::dispatchPublic($msg);
  80         } else {
  81                 $ret = Diaspora::dispatch($importer, $msg);
  82         }
  83
  84         System::httpExit(($ret) ? 200 : 500);
  85         // NOTREACHED
  86 }