Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
require_once("boot.php");
function handle_pubsubhubbub() {
global $a, $db;
logger('start');
// We'll push to each subscriber that has push > 0,
// i.e. there has been an update (set in notifier.php).
$r = q("SELECT * FROM `push_subscriber` WHERE `push` > 0");
foreach($r as $rr) {
$params = get_feed_for($a, '', $rr['nickname'], $rr['last_update'], 0, true);
$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=" . $hmac_sig);
logger('POST '. print_r($headers, true)."\n".$params, LOGGER_DEBUG);
post_url($rr['callback_url'], $params, $headers);
$ret = $a->get_curl_code();
if ($ret >= 200 && $ret <= 299) {
logger('successfully pushed to '.$rr['callback_url']);
// set last_update to "now", and reset push=0
$date_now = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
q("UPDATE `push_subscriber` SET `push` = 0, last_update = '%s' WHERE id = %d",
dbesc($date_now),
intval($rr['id']));
} else {
logger('error when pushing to '.$rr['callback_url'].' HTTP: '.$ret);
// we use the push variable also as a counter, if we failed we
// increment this until some upper limit where we give up
$new_push = intval($rr['push']) + 1;
if ($new_push > 30) // OK, let's give up
$new_push = 0;
q("UPDATE `push_subscriber` SET `push` = %d, last_update = '%s' WHERE id = %d",
$new_push,
dbesc($date_now),
intval($rr['id']));
}
}
logger('done');
}
function pubsubpublish_run(&$argv, &$argc){
global $a, $db;
if(is_null($a)){
$a = new App;
}
if(is_null($db)){
@include(".htconfig.php");
require_once("include/dba.php");
$db = new dba($db_host, $db_user, $db_pass, $db_data);
unset($db_host, $db_user, $db_pass, $db_data);
};
require_once('include/items.php');
require_once('include/pidfile.php');
load_config('config');
load_config('system');
$lockpath = get_lockpath();
if ($lockpath != '') {
$pidfile = new pidfile($lockpath, 'pubsubpublish');
if($pidfile->is_already_running()) {
logger("Already running");
if ($pidfile->running_time() > 9*60) {
$pidfile->kill();
logger("killed stale process");
// Calling a new instance
proc_run('php',"include/pubsubpublish.php");
}
return;
}
}
$a->set_baseurl(get_config('system','url'));
load_hooks();
if($argc > 1)
$pubsubpublish_id = intval($argv[1]);
else
$pubsubpublish_id = 0;
handle_pubsubhubbub();
return;
}
if (array_search(__file__,get_included_files())===0){
pubsubpublish_run($_SERVER["argv"],$_SERVER["argc"]);
killme();
}