3 * @file src/Worker/PubSubPublish.php
6 namespace Friendica\Worker;
9 use Friendica\Core\System;
10 use Friendica\Core\Config;
11 use Friendica\Core\Worker;
12 use Friendica\Database\DBM;
13 use Friendica\Protocol\OStatus;
14 use Friendica\Util\Network;
17 require_once 'include/items.php';
20 public static function execute($pubsubpublish_id = 0)
24 if ($pubsubpublish_id == 0) {
25 // We'll push to each subscriber that has push > 0,
26 // i.e. there has been an update (set in notifier.php).
27 $r = q("SELECT `id`, `callback_url` FROM `push_subscriber` WHERE `push` > 0 ORDER BY `last_update` DESC");
30 logger("Publish feed to ".$rr["callback_url"], LOGGER_DEBUG);
31 Worker::add(['priority' => PRIORITY_HIGH, 'created' => $a->queue['created'], 'dont_fork' => true],
32 'PubSubPublish', (int)$rr["id"]);
36 self::publish($pubsubpublish_id);
41 private static function publish($id) {
44 $r = q("SELECT * FROM `push_subscriber` WHERE `id` = %d", intval($id));
45 if (!DBM::is_result($r)) {
51 /// @todo Check server status with PortableContact::checkServer()
52 // Before this can be done we need a way to safely detect the server url.
54 logger("Generate feed of user ".$rr['nickname']." to ".$rr['callback_url']." - last updated ".$rr['last_update'], LOGGER_DEBUG);
56 $last_update = $rr['last_update'];
57 $params = OStatus::feed($rr['nickname'], $last_update);
63 $hmac_sig = hash_hmac("sha1", $params, $rr['secret']);
65 $headers = ["Content-type: application/atom+xml",
66 sprintf("Link: <%s>;rel=hub,<%s>;rel=self",
67 System::baseUrl().'/pubsubhubbub/'.$rr['nickname'],
69 "X-Hub-Signature: sha1=".$hmac_sig];
71 logger('POST '.print_r($headers, true)."\n".$params, LOGGER_DATA);
73 Network::post($rr['callback_url'], $params, $headers);
74 $ret = $a->get_curl_code();
76 if ($ret >= 200 && $ret <= 299) {
77 logger('successfully pushed to '.$rr['callback_url']);
79 // set last_update to the "created" date of the last item, and reset push=0
80 $fields = ['push' => 0, 'last_update' => $last_update];
81 dba::update('push_subscriber', $fields, ['id' => $rr['id']]);
84 logger('error when pushing to '.$rr['callback_url'].' HTTP: '.$ret);
86 // we use the push variable also as a counter, if we failed we
87 // increment this until some upper limit where we give up
88 $new_push = intval($rr['push']) + 1;
90 if ($new_push > 30) // OK, let's give up
93 dba::update('push_subscriber', ['push' => $new_push], ['id' => $rr['id']]);