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Initial implementation of internal PuSH server in Friendica. It has been tested with GNU Social/StatusNet, and subscribe, unsubscribe and pushing new items seem to work.

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This commit is contained in:
Mats Sjöberg 2013-11-17 16:16:25 +02:00
parent 19de78e511
commit 2859ce1483
6 changed files with 243 additions and 6 deletions
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15
include/notifier.php
View file

@ -966,9 +966,18 @@ function notifier_run(&$argv, &$argc){
$h = trim($h);
if(! strlen($h))
continue;
$params = 'hub.mode=publish&hub.url=' . urlencode($a->get_baseurl() . '/dfrn_poll/' . $owner['nickname'] );
post_url($h,$params);
logger('pubsub: publish: ' . $h . ' ' . $params . ' returned ' . $a->get_curl_code());
if ($h === '[internal]') {
// Set push flag for PuSH subscribers to this topic,
// they will be notified in queue.php
q("UPDATE `push_subscriber` SET `push` = 1 " .
"WHERE `nickname` = '%s'", dbesc($owner['nickname']));
} else {
$params = 'hub.mode=publish&hub.url=' . urlencode( $a->get_baseurl() . '/dfrn_poll/' . $owner['nickname'] );
post_url($h,$params);
logger('pubsub: publish: ' . $h . ' ' . $params . ' returned ' . $a->get_curl_code());
}
if(count($hubs) > 1)
sleep(7); // try and avoid multiple hubs responding at precisely the same time
}

47
include/queue.php
View file

@ -2,6 +2,51 @@
require_once("boot.php");
require_once('include/queue_fn.php');
function handle_pubsubhubbub() {
global $a, $db;
logger('queue [pubsubhubbub]: start');
// We'll push to each subscriber that has the push flag set,
// i.e. there has been an update (set in notifier.php).
$r = q("SELECT * FROM `push_subscriber` WHERE `push` = 1");
foreach($r as $rr) {
$params = get_feed_for($a, '', $rr['nickname'], $rr['last_update']);
$hmac_sig = hash_hmac("sha1", $params, $rr['secret']);
$headers = array("Content-type: application/atom+xml",
sprintf("Link: <%s>;rel=hub," .
"<%s>;rel=self",
$a->get_baseurl() . '/pubsubhubbub',
$rr['topic']),
"X-Hub-Signature: sha1=" . $hmac_sig);
logger('queue [pubsubhubbub]: POST', $headers);
post_url($rr['callback_url'], $params, $headers);
$ret = $a->get_curl_code();
if ($ret >= 200 && $ret <= 299) {
logger('queue [pubsubhubbub]: successfully pushed to ' .
$rr['callback_url']);
// here we should set push = 0 and update last_update to 'now'
$date_now = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
q("UPDATE `push_subscriber` SET `push` = 0, last_update = '%s' " .
"WHERE id = %d",
dbesc($date_now),
intval($rr['id']));
} else {
logger('queue [pubsubhubbub]: error when pushing to ' .
$rr['callback_url'] . 'HTTP: ', $ret);
// here we should set update some retry counter
// or cancel if counter is too high, remove subscription?
}
}
}
function queue_run(&$argv, &$argc){
global $a, $db;
@ -38,6 +83,8 @@ function queue_run(&$argv, &$argc){
logger('queue: start');
handle_pubsubhubbub();
$interval = ((get_config('system','delivery_interval') === false) ? 2 : intval(get_config('system','delivery_interval')));
$r = q("select * from deliverq where 1");

4
include/text.php
View file

@ -1554,7 +1554,7 @@ if(! function_exists('feed_hublinks')) {
* @return string hub link xml elements
*/
function feed_hublinks() {
$a = get_app();
$hub = get_config('system','huburl');
$hubxml = '';
@ -1565,6 +1565,8 @@ function feed_hublinks() {
$h = trim($h);
if(! strlen($h))
continue;
if ($h === '[internal]')
$h = $a->get_baseurl() . '/pubsubhubbub';
$hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
}
}