src/Worker/PubSubPublish.php

   1 <?php
   2 /**
   3  * @file src/Worker/PubSubPublish.php
   4  */
   5
   6 namespace Friendica\Worker;
   7
   8 use Friendica\Core\Logger;
   9 use Friendica\Core\System;
  10 use Friendica\Database\DBA;
  11 use Friendica\Model\PushSubscriber;
  12 use Friendica\Model\GServer;
  13 use Friendica\Protocol\OStatus;
  14 use Friendica\Util\Network;
  15
  16 class PubSubPublish
  17 {
  18         public static function execute($pubsubpublish_id = 0)
  19         {
  20                 if ($pubsubpublish_id == 0) {
  21                         return;
  22                 }
  23
  24                 self::publish($pubsubpublish_id);
  25         }
  26
  27         private static function publish($id)
  28         {
  29                 $subscriber = DBA::selectFirst('push_subscriber', [], ['id' => $id]);
  30                 if (!DBA::isResult($subscriber)) {
  31                         return;
  32                 }
  33
  34                 /// @todo Check server status with GServer::check()
  35                 // Before this can be done we need a way to safely detect the server url.
  36
  37                 Logger::log("Generate feed of user " . $subscriber['nickname']. " to " . $subscriber['callback_url']. " - last updated " . $subscriber['last_update'], Logger::DEBUG);
  38
  39                 $last_update = $subscriber['last_update'];
  40                 $params = OStatus::feed($subscriber['nickname'], $last_update);
  41
  42                 if (!$params) {
  43                         return;
  44                 }
  45
  46                 $hmac_sig = hash_hmac("sha1", $params, $subscriber['secret']);
  47
  48                 $headers = ["Content-type: application/atom+xml",
  49                                 sprintf("Link: <%s>;rel=hub,<%s>;rel=self",
  50                                         System::baseUrl() . '/pubsubhubbub/' . $subscriber['nickname'],
  51                                         $subscriber['topic']),
  52                                 "X-Hub-Signature: sha1=" . $hmac_sig];
  53
  54                 Logger::log('POST ' . print_r($headers, true) . "\n" . $params, Logger::DATA);
  55
  56                 $postResult = Network::post($subscriber['callback_url'], $params, $headers);
  57                 $ret = $postResult->getReturnCode();
  58
  59                 if ($ret >= 200 && $ret <= 299) {
  60                         Logger::log('Successfully pushed to ' . $subscriber['callback_url']);
  61
  62                         PushSubscriber::reset($subscriber['id'], $last_update);
  63                 } else {
  64                         Logger::log('Delivery error when pushing to ' . $subscriber['callback_url'] . ' HTTP: ' . $ret);
  65
  66                         PushSubscriber::delay($subscriber['id']);
  67                 }
  68         }
  69 }