126 lines
4.5 KiB
PHP
126 lines
4.5 KiB
PHP
<?php
|
|
/*
|
|
* StatusNet - the distributed open-source microblogging tool
|
|
* Copyright (C) 2009, 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/>.
|
|
*/
|
|
|
|
/**
|
|
* @package FeedSubPlugin
|
|
* @maintainer Brion Vibber <brion@status.net>
|
|
*/
|
|
|
|
if (!defined('STATUSNET')) {
|
|
exit(1);
|
|
}
|
|
|
|
class PushCallbackAction extends Action
|
|
{
|
|
protected function handle()
|
|
{
|
|
GNUsocial::setApi(true); // Minimize error messages to aid in debugging
|
|
parent::handle();
|
|
if ($this->isPost()) {
|
|
return $this->handlePost();
|
|
}
|
|
|
|
return $this->handleGet();
|
|
}
|
|
|
|
/**
|
|
* Handler for POST content updates from the hub
|
|
*/
|
|
function handlePost()
|
|
{
|
|
$feedid = $this->arg('feed');
|
|
common_log(LOG_INFO, "POST for feed id $feedid");
|
|
if (!$feedid) {
|
|
// TRANS: Server exception thrown when referring to a non-existing or empty feed.
|
|
throw new ServerException(_m('Empty or invalid feed id.'), 400);
|
|
}
|
|
|
|
$feedsub = FeedSub::getKV('id', $feedid);
|
|
if (!$feedsub instanceof FeedSub) {
|
|
// TRANS: Server exception. %s is a feed ID.
|
|
throw new ServerException(sprintf(_m('Unknown PuSH feed id %s'),$feedid), 400);
|
|
}
|
|
|
|
$hmac = '';
|
|
if (isset($_SERVER['HTTP_X_HUB_SIGNATURE'])) {
|
|
$hmac = $_SERVER['HTTP_X_HUB_SIGNATURE'];
|
|
}
|
|
|
|
$post = file_get_contents('php://input');
|
|
|
|
// Queue this to a background process; we should return
|
|
// as quickly as possible from a distribution POST.
|
|
// If queues are disabled this'll process immediately.
|
|
$data = array('feedsub_id' => $feedsub->id,
|
|
'post' => $post,
|
|
'hmac' => $hmac);
|
|
$qm = QueueManager::get();
|
|
$qm->enqueue($data, 'pushin');
|
|
}
|
|
|
|
/**
|
|
* Handler for GET verification requests from the hub.
|
|
*/
|
|
function handleGet()
|
|
{
|
|
$mode = $this->arg('hub_mode');
|
|
$topic = $this->arg('hub_topic');
|
|
$challenge = $this->arg('hub_challenge');
|
|
$lease_seconds = $this->arg('hub_lease_seconds'); // Must be >0 for PuSH 0.4!
|
|
common_log(LOG_INFO, __METHOD__ . ": sub verification mode: $mode topic: $topic challenge: $challenge lease_seconds: $lease_seconds");
|
|
|
|
if ($mode != 'subscribe' && $mode != 'unsubscribe') {
|
|
// TRANS: Client exception. %s is an invalid value for hub.mode.
|
|
throw new ClientException(sprintf(_m('Bad hub.mode "$s".',$mode)), 404);
|
|
}
|
|
|
|
$feedsub = FeedSub::getKV('uri', $topic);
|
|
if (!$feedsub instanceof FeedSub) {
|
|
// TRANS: Client exception. %s is an invalid feed name.
|
|
throw new ClientException(sprintf(_m('Bad hub.topic feed "%s".'),$topic), 404);
|
|
}
|
|
|
|
if ($mode == 'subscribe') {
|
|
// We may get re-sub requests legitimately.
|
|
if ($feedsub->sub_state != 'subscribe' && $feedsub->sub_state != 'active') {
|
|
// TRANS: Client exception. %s is an invalid topic.
|
|
throw new ClientException(sprintf(_m('Unexpected subscribe request for %s.'),$topic), 404);
|
|
}
|
|
} else {
|
|
if ($feedsub->sub_state != 'unsubscribe') {
|
|
// TRANS: Client exception. %s is an invalid topic.
|
|
throw new ClientException(sprintf(_m('Unexpected unsubscribe request for %s.'),$topic), 404);
|
|
}
|
|
}
|
|
|
|
if ($mode == 'subscribe') {
|
|
if ($feedsub->sub_state == 'active') {
|
|
common_log(LOG_INFO, __METHOD__ . ': sub update confirmed');
|
|
} else {
|
|
common_log(LOG_INFO, __METHOD__ . ': sub confirmed');
|
|
}
|
|
$feedsub->confirmSubscribe($lease_seconds);
|
|
} else {
|
|
common_log(LOG_INFO, __METHOD__ . ": unsub confirmed; deleting sub record for $topic");
|
|
$feedsub->confirmUnsubscribe();
|
|
}
|
|
print $challenge;
|
|
}
|
|
}
|