gnu-social/plugins/OStatus/lib/huboutqueuehandler.php

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<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
if (!defined('GNUSOCIAL')) { exit(1); }
/**
* Send a raw WebSub push atom update from our internal hub.
* @package Hub
* @author Brion Vibber <brion@status.net>
*/
class HubOutQueueHandler extends QueueHandler
{
function transport()
{
return 'hubout';
}
function handle($data)
{
assert(array_key_exists('atom', $data));
assert(is_string($data['atom']));
$atom = $data['atom'];
assert(array_key_exists('retries', $data));
$retries = intval($data['retries']);
if (array_key_exists('topic', $data) && array_key_exists('callback', $data)) {
assert(is_string($data['topic']));
assert(is_string($data['callback']));
$sub = HubSub::getByHashkey($data['topic'], $data['callback']);
} elseif (array_key_exists('sub', $data)) {
// queue behaviour changed 2017-07-09 to store topic/callback instead of sub object
common_debug('Legacy behaviour of storing HubSub objects found, this should go away when all objects are handled...');
$sub = $data['sub'];
} else {
throw new ServerException('No HubSub object available with queue item data.');
}
assert($sub instanceof HubSub);
try {
$success = $sub->push($atom);
// The reason I split these up is because I want to see how the algorithm acts in practice.
if ($success) {
common_debug('HubSub push completed successfully!');
} else {
common_debug('HubSub push failed with an HTTP error.');
}
if ($sub->getErrors()>0) {
common_debug('Resetting HubSub push error count following successful reset.');
$sub->resetErrors();
}
} catch (AlreadyFulfilledException $e) {
// Probably doesn't happen anymore since commit 74a60ab963b5ce1ed95bd81f935a44c573cd0264
common_log(LOG_INFO, "Failed WebSub push to $sub->callback for $sub->topic (".get_class($e)."): " . $e->getMessage());
} catch (Exception $e) {
$retries--;
$msg = "Failed WebSub push to $sub->callback for $sub->topic (".get_class($e)."): " . $e->getMessage();
if ($retries > 0) {
2015-12-26 15:27:06 +00:00
common_log(LOG_INFO, "$msg; scheduling for $retries more tries");
// @fixme when we have infrastructure to schedule a retry
// after a delay, use it.
$sub->distribute($atom, $retries);
} else {
$sub->incrementErrors($e->getMessage());
common_log(LOG_ERR, "$msg; discarding");
}
}
return true;
}
}