113 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			113 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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require_once("boot.php");
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require_once("include/ostatus.php");
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function handle_pubsubhubbub() {
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	global $a, $db;
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	logger('start');
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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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	$r = q("SELECT * FROM `push_subscriber` WHERE `push` > 0");
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	foreach($r as $rr) {
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		$params = ostatus_feed($a, $rr['nickname'], $rr['last_update']);
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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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					$a->get_baseurl().'/pubsubhubbub',
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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 "now", and reset push=0
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			$date_now = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
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			q("UPDATE `push_subscriber` SET `push` = 0, last_update = '%s' WHERE id = %d",
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				dbesc($date_now),
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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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	logger('done');
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}
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function pubsubpublish_run(&$argv, &$argc){
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	global $a, $db;
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	if(is_null($a)){
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		$a = new App;
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	}
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	if(is_null($db)){
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		@include(".htconfig.php");
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		require_once("include/dba.php");
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		$db = new dba($db_host, $db_user, $db_pass, $db_data);
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		unset($db_host, $db_user, $db_pass, $db_data);
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	};
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	require_once('include/items.php');
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	require_once('include/pidfile.php');
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	load_config('config');
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	load_config('system');
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	$lockpath = get_lockpath();
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	if ($lockpath != '') {
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		$pidfile = new pidfile($lockpath, 'pubsubpublish');
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		if($pidfile->is_already_running()) {
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			logger("Already running");
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			if ($pidfile->running_time() > 9*60) {
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				$pidfile->kill();
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				logger("killed stale process");
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				// Calling a new instance
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				proc_run('php',"include/pubsubpublish.php");
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			}
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			return;
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		}
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	}
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	$a->set_baseurl(get_config('system','url'));
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	load_hooks();
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	if($argc > 1)
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		$pubsubpublish_id = intval($argv[1]);
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	else
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		$pubsubpublish_id = 0;
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	handle_pubsubhubbub();
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	return;
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}
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if (array_search(__file__,get_included_files())===0){
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  pubsubpublish_run($_SERVER["argv"],$_SERVER["argc"]);
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  killme();
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}
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