forked from GNUsocial/gnu-social
5349aa420e
- actually udpate feedsub.last_update when we get a new PuSH update in - move incoming PuSH processing to a queue handler to minimize time spent before POST return, as recommended by PuSH spec. When queues are disabled this'll still be handled immediately.
116 lines
4.0 KiB
PHP
116 lines
4.0 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2009, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @package FeedSubPlugin
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* @maintainer Brion Vibber <brion@status.net>
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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class PushCallbackAction extends Action
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{
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function handle()
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{
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parent::handle();
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if ($_SERVER['REQUEST_METHOD'] == 'POST') {
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$this->handlePost();
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} else {
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$this->handleGet();
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}
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}
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/**
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* Handler for POST content updates from the hub
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*/
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function handlePost()
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{
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$feedid = $this->arg('feed');
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common_log(LOG_INFO, "POST for feed id $feedid");
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if (!$feedid) {
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throw new ServerException('Empty or invalid feed id', 400);
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}
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$feedsub = FeedSub::staticGet('id', $feedid);
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if (!$feedsub) {
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throw new ServerException('Unknown PuSH feed id ' . $feedid, 400);
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}
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$hmac = '';
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if (isset($_SERVER['HTTP_X_HUB_SIGNATURE'])) {
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$hmac = $_SERVER['HTTP_X_HUB_SIGNATURE'];
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}
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$post = file_get_contents('php://input');
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// Queue this to a background process; we should return
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// as quickly as possible from a distribution POST.
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// If queues are disabled this'll process immediately.
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$data = array('feedsub_id' => $feedsub->id,
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'post' => $post,
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'hmac' => $hmac);
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$qm = QueueManager::get();
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$qm->enqueue($data, 'pushinput');
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}
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/**
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* Handler for GET verification requests from the hub
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*/
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function handleGet()
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{
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$mode = $this->arg('hub_mode');
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$topic = $this->arg('hub_topic');
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$challenge = $this->arg('hub_challenge');
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$lease_seconds = $this->arg('hub_lease_seconds');
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$verify_token = $this->arg('hub_verify_token');
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if ($mode != 'subscribe' && $mode != 'unsubscribe') {
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common_log(LOG_WARNING, __METHOD__ . ": bogus hub callback with mode \"$mode\"");
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throw new ServerException("Bogus hub callback: bad mode", 404);
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}
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$feedsub = FeedSub::staticGet('uri', $topic);
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if (!$feedsub) {
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common_log(LOG_WARNING, __METHOD__ . ": bogus hub callback for unknown feed $topic");
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throw new ServerException("Bogus hub callback: unknown feed", 404);
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}
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if ($feedsub->verify_token !== $verify_token) {
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common_log(LOG_WARNING, __METHOD__ . ": bogus hub callback with bad token \"$verify_token\" for feed $topic");
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throw new ServerException("Bogus hub callback: bad token", 404);
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}
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if ($mode != $feedsub->sub_state) {
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common_log(LOG_WARNING, __METHOD__ . ": bogus hub callback with bad mode \"$mode\" for feed $topic in state \"{$feedsub->sub_state}\"");
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throw new ServerException("Bogus hub callback: mode doesn't match subscription state.", 404);
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}
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// OK!
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if ($mode == 'subscribe') {
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common_log(LOG_INFO, __METHOD__ . ': sub confirmed');
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$feedsub->confirmSubscribe($lease_seconds);
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} else {
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common_log(LOG_INFO, __METHOD__ . ": unsub confirmed; deleting sub record for $topic");
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$feedsub->confirmUnsubscribe();
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}
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print $challenge;
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}
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}
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