90 lines
2.5 KiB
PHP
90 lines
2.5 KiB
PHP
<?php
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use Friendica\App;
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use Friendica\Core\System;
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use Friendica\Core\Config;
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use Friendica\Core\Worker;
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require_once('include/items.php');
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require_once('include/ostatus.php');
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function pubsubpublish_run(&$argv, &$argc){
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global $a;
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if ($argc > 1) {
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$pubsubpublish_id = intval($argv[1]);
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} else {
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// We'll push to each subscriber that has push > 0,
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// i.e. there has been an update (set in notifier.php).
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$r = q("SELECT `id`, `callback_url` FROM `push_subscriber` WHERE `push` > 0 ORDER BY `last_update` DESC");
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foreach ($r as $rr) {
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logger("Publish feed to ".$rr["callback_url"], LOGGER_DEBUG);
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Worker::add(array('priority' => PRIORITY_HIGH, 'created' => $a->queue['created'], 'dont_fork' => true),
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'pubsubpublish', (int)$rr["id"]);
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}
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}
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handle_pubsubhubbub($pubsubpublish_id);
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return;
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}
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function handle_pubsubhubbub($id) {
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global $a;
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$r = q("SELECT * FROM `push_subscriber` WHERE `id` = %d", intval($id));
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if (!dbm::is_result($r)) {
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return;
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}
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$rr = $r[0];
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/// @todo Check server status with poco_check_server()
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// Before this can be done we need a way to safely detect the server url.
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logger("Generate feed of user ".$rr['nickname']." to ".$rr['callback_url']." - last updated ".$rr['last_update'], LOGGER_DEBUG);
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$last_update = $rr['last_update'];
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$params = ostatus::feed($a, $rr['nickname'], $last_update);
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if (!$params) {
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return;
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}
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$hmac_sig = hash_hmac("sha1", $params, $rr['secret']);
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$headers = array("Content-type: application/atom+xml",
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sprintf("Link: <%s>;rel=hub,<%s>;rel=self",
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System::baseUrl().'/pubsubhubbub/'.$rr['nickname'],
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$rr['topic']),
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"X-Hub-Signature: sha1=".$hmac_sig);
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logger('POST '.print_r($headers, true)."\n".$params, LOGGER_DEBUG);
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post_url($rr['callback_url'], $params, $headers);
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$ret = $a->get_curl_code();
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if ($ret >= 200 && $ret <= 299) {
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logger('successfully pushed to '.$rr['callback_url']);
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// set last_update to the "created" date of the last item, and reset push=0
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q("UPDATE `push_subscriber` SET `push` = 0, last_update = '%s' WHERE id = %d",
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dbesc($last_update),
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intval($rr['id']));
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} else {
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logger('error when pushing to '.$rr['callback_url'].' HTTP: '.$ret);
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// we use the push variable also as a counter, if we failed we
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// increment this until some upper limit where we give up
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$new_push = intval($rr['push']) + 1;
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if ($new_push > 30) // OK, let's give up
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$new_push = 0;
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q("UPDATE `push_subscriber` SET `push` = %d WHERE id = %d",
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$new_push,
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intval($rr['id']));
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}
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}
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