-
- $feedinfo = Feedinfo::staticGet('feeduri', $topic);
- if (!$feedinfo) {
- common_log(LOG_WARNING, __METHOD__ . ": bogus hub callback for unknown feed $topic");
- throw new ServerException("Bogus hub callback: unknown feed", 404);
+
+ if ($feedsub->verify_token !== $verify_token) {
+ throw new ClientException("Bad hub.verify_token $token for $topic", 404);
+ }
+
+ if ($mode == 'subscribe') {
+ // We may get re-sub requests legitimately.
+ if ($feedsub->sub_state != 'subscribe' && $feedsub->sub_state != 'active') {
+ throw new ClientException("Unexpected subscribe request for $topic.", 404);
+ }
+ } else {
+ if ($feedsub->sub_state != 'unsubscribe') {
+ throw new ClientException("Unexpected unsubscribe request for $topic.", 404);
+ }