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 App $a App
  16  * @return void
  17  * @throws ImagickException
  18  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  19  */
  20 function receive_post(App $a)
  21 {
  22         $enabled = intval(Config::get('system', 'diaspora_enabled'));
  23         if (!$enabled) {
  24                 Logger::log('mod-diaspora: disabled');
  25                 System::httpExit(500);
  26         }
  27
  28         if (($a->argc == 2) && ($a->argv[1] === 'public')) {
  29                 $public = true;
  30                 $importer = [];
  31         } else {
  32                 $public = false;
  33
  34                 if ($a->argc != 3 || $a->argv[1] !== 'users') {
  35                         System::httpExit(500);
  36                 }
  37                 $guid = $a->argv[2];
  38
  39                 $importer = DBA::selectFirst('user', [], ['guid' => $guid, 'account_expired' => false, 'account_removed' => false]);
  40                 if (!DBA::isResult($importer)) {
  41                         System::httpExit(500);
  42                 }
  43         }
  44
  45         // It is an application/x-www-form-urlencoded
  46
  47         Logger::log('mod-diaspora: receiving post', Logger::DEBUG);
  48
  49         if (empty($_POST['xml'])) {
  50                 $postdata = file_get_contents("php://input");
  51                 if ($postdata == '') {
  52                         System::httpExit(500);
  53                 }
  54
  55                 Logger::log('mod-diaspora: message is in the new format', Logger::DEBUG);
  56                 $msg = Diaspora::decodeRaw($importer, $postdata);
  57         } else {
  58                 $xml = urldecode($_POST['xml']);
  59
  60                 Logger::log('mod-diaspora: decode message in the old format', Logger::DEBUG);
  61                 $msg = Diaspora::decode($importer, $xml);
  62
  63                 if ($public && !$msg) {
  64                         Logger::log('mod-diaspora: decode message in the new format', Logger::DEBUG);
  65                         $msg = Diaspora::decodeRaw($importer, $xml);
  66                 }
  67         }
  68
  69         Logger::log('mod-diaspora: decoded', Logger::DEBUG);
  70
  71         Logger::log('mod-diaspora: decoded msg: ' . print_r($msg, true), Logger::DATA);
  72
  73         if (!is_array($msg)) {
  74                 System::httpExit(500);
  75         }
  76
  77         Logger::log('mod-diaspora: dispatching', Logger::DEBUG);
  78
  79         $ret = true;
  80         if ($public) {
  81                 Diaspora::dispatchPublic($msg);
  82         } else {
  83                 $ret = Diaspora::dispatch($importer, $msg);
  84         }
  85
  86         System::httpExit(($ret) ? 200 : 500);
  87         // NOTREACHED
  88 }