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-rw-r--r--plugins/OStatus/actions/feedsubcallback.php105
1 files changed, 105 insertions, 0 deletions
diff --git a/plugins/OStatus/actions/feedsubcallback.php b/plugins/OStatus/actions/feedsubcallback.php
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+++ b/plugins/OStatus/actions/feedsubcallback.php
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+<?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') && !defined('LACONICA')) { exit(1); }
+
+
+class FeedSubCallbackAction extends Action
+{
+ function handle()
+ {
+ parent::handle();
+ if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+ $this->handlePost();
+ } else {
+ $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) {
+ throw new ServerException('Empty or invalid feed id', 400);
+ }
+
+ $feedinfo = Feedinfo::staticGet('id', $feedid);
+ if (!$feedinfo) {
+ throw new ServerException('Unknown feed id ' . $feedid, 400);
+ }
+
+ $hmac = '';
+ if (isset($_SERVER['HTTP_X_HUB_SIGNATURE'])) {
+ $hmac = $_SERVER['HTTP_X_HUB_SIGNATURE'];
+ }
+
+ $post = file_get_contents('php://input');
+ $feedinfo->postUpdates($post, $hmac);
+ }
+
+ /**
+ * 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');
+ $verify_token = $this->arg('hub_verify_token');
+
+ if ($mode != 'subscribe' && $mode != 'unsubscribe') {
+ common_log(LOG_WARNING, __METHOD__ . ": bogus hub callback with mode \"$mode\"");
+ throw new ServerException("Bogus hub callback: bad mode", 404);
+ }
+
+ $feedinfo = Feedinfo::staticGet('feeduri', $topic);
+ if (!$feedinfo) {
+ common_log(LOG_WARNING, __METHOD__ . ": bogus hub callback for unknown feed $topic");
+ throw new ServerException("Bogus hub callback: unknown feed", 404);
+ }
+
+ # Can't currently set the token in our sub api
+ #if ($feedinfo->verify_token !== $verify_token) {
+ # common_log(LOG_WARNING, __METHOD__ . ": bogus hub callback with bad token \"$verify_token\" for feed $topic");
+ # throw new ServerError("Bogus hub callback: bad token", 404);
+ #}
+
+ // OK!
+ common_log(LOG_INFO, __METHOD__ . ': sub confirmed');
+ $feedinfo->sub_start = common_sql_date(time());
+ if ($lease_seconds > 0) {
+ $feedinfo->sub_end = common_sql_date(time() + $lease_seconds);
+ } else {
+ $feedinfo->sub_end = null;
+ }
+ $feedinfo->update();
+
+ print $challenge;
+ }
+}