$mode = $this->trimmed('hub.mode');
switch ($mode) {
case "subscribe":
- $this->subscribe();
- break;
case "unsubscribe":
- $this->unsubscribe();
+ $this->subunsub($mode);
break;
case "publish":
- throw new ServerException("Publishing outside feeds not supported.", 400);
+ throw new ClientException("Publishing outside feeds not supported.", 400);
default:
- throw new ServerException("Unrecognized mode '$mode'.", 400);
+ throw new ClientException("Unrecognized mode '$mode'.", 400);
}
}
/**
- * Process a PuSH feed subscription request.
+ * Process a request for a new or modified PuSH feed subscription.
+ * If asynchronous verification is requested, updates won't be saved immediately.
*
* HTTP return codes:
* 202 Accepted - request saved and awaiting verification
* 204 No Content - already subscribed
- * 403 Forbidden - rejecting this (not specifically spec'd)
+ * 400 Bad Request - rejecting this (not specifically spec'd)
*/
- function subscribe()
+ function subunsub($mode)
{
- $feed = $this->argUrl('hub.topic');
$callback = $this->argUrl('hub.callback');
- $token = $this->arg('hub.verify_token', null);
- common_log(LOG_DEBUG, __METHOD__ . ": checking sub'd to $feed $callback");
- if ($this->getSub($feed, $callback)) {
- // Already subscribed; return 204 per spec.
- header('HTTP/1.1 204 No Content');
- common_log(LOG_DEBUG, __METHOD__ . ': already subscribed');
- return;
+ $topic = $this->argUrl('hub.topic');
+ if (!$this->recognizedFeed($topic)) {
+ throw new ClientException("Unsupported hub.topic $topic; this hub only serves local user and group Atom feeds.");
}
- common_log(LOG_DEBUG, __METHOD__ . ': setting up');
- $sub = new HubSub();
- $sub->topic = $feed;
- $sub->callback = $callback;
- $sub->secret = $this->arg('hub.secret', null);
- if (strlen($sub->secret) > 200) {
- throw new ClientException("hub.secret must be no longer than 200 chars", 400);
+ $verify = $this->arg('hub.verify'); // @fixme may be multiple
+ if ($verify != 'sync' && $verify != 'async') {
+ throw new ClientException("Invalid hub.verify $verify; must be sync or async.");
}
- $sub->setLease(intval($this->arg('hub.lease_seconds')));
- // @fixme check for feeds we don't manage
- // @fixme check the verification mode, might want a return immediately?
+ $lease = $this->arg('hub.lease_seconds', null);
+ if ($mode == 'subscribe' && $lease != '' && !preg_match('/^\d+$/', $lease)) {
+ throw new ClientException("Invalid hub.lease $lease; must be empty or positive integer.");
+ }
+
+ $token = $this->arg('hub.verify_token', null);
- common_log(LOG_DEBUG, __METHOD__ . ': inserting');
- $ok = $sub->insert();
-
- if (!$ok) {
- throw new ServerException("Failed to save subscription record", 500);
+ $secret = $this->arg('hub.secret', null);
+ if ($secret != '' && strlen($secret) >= 200) {
+ throw new ClientException("Invalid hub.secret $secret; must be under 200 bytes.");
}
- // @fixme check errors ;)
+ $sub = HubSub::staticGet($topic, $callback);
+ if (!$sub) {
+ // Creating a new one!
+ $sub = new HubSub();
+ $sub->topic = $topic;
+ $sub->callback = $callback;
+ }
+ if ($mode == 'subscribe') {
+ if ($secret) {
+ $sub->secret = $secret;
+ }
+ if ($lease) {
+ $sub->setLease(intval($lease));
+ }
+ }
- $data = array('sub' => $sub, 'mode' => 'subscribe', 'token' => $token);
- $qm = QueueManager::get();
- $qm->enqueue($data, 'hubverify');
-
- header('HTTP/1.1 202 Accepted');
- common_log(LOG_DEBUG, __METHOD__ . ': done');
+ if (!common_config('queue', 'enabled')) {
+ // Won't be able to background it.
+ $verify = 'sync';
+ }
+ if ($verify == 'async') {
+ $sub->scheduleVerify($mode, $token);
+ header('HTTP/1.1 202 Accepted');
+ } else {
+ $sub->verify($mode, $token);
+ header('HTTP/1.1 204 No Content');
+ }
}
/**
- * Process a PuSH feed unsubscription request.
- *
- * HTTP return codes:
- * 202 Accepted - request saved and awaiting verification
- * 204 No Content - already subscribed
- * 400 Bad Request - invalid params or rejected feed
+ * Check whether the given URL represents one of our canonical
+ * user or group Atom feeds.
*
- * @fixme background this
+ * @param string $feed URL
+ * @return boolean true if it matches
*/
- function unsubscribe()
+ function recognizedFeed($feed)
{
- $feed = $this->argUrl('hub.topic');
- $callback = $this->argUrl('hub.callback');
- $sub = $this->getSub($feed, $callback);
-
- if ($sub) {
- $token = $this->arg('hub.verify_token', null);
- if ($sub->verify('unsubscribe', $token)) {
- $sub->delete();
- common_log(LOG_INFO, "PuSH unsubscribed $feed for $callback");
- } else {
- throw new ServerException("Failed PuSH unsubscription: verification failed! $feed for $callback");
+ $matches = array();
+ if (preg_match('!/(\d+)\.atom$!', $feed, $matches)) {
+ $id = $matches[1];
+ $params = array('id' => $id, 'format' => 'atom');
+ $userFeed = common_local_url('ApiTimelineUser', $params);
+ $groupFeed = common_local_url('ApiTimelineGroup', $params);
+
+ if ($feed == $userFeed) {
+ $user = User::staticGet('id', $id);
+ if (!$user) {
+ throw new ClientException("Invalid hub.topic $feed; user doesn't exist.");
+ } else {
+ return true;
+ }
}
- } else {
- throw new ServerException("Failed PuSH unsubscription: not subscribed! $feed for $callback");
+ if ($feed == $groupFeed) {
+ $user = User_group::staticGet('id', $id);
+ if (!$user) {
+ throw new ClientException("Invalid hub.topic $feed; group doesn't exist.");
+ } else {
+ return true;
+ }
+ }
+ common_log(LOG_DEBUG, "Not a user or group feed? $feed $userFeed $groupFeed");
}
+ common_log(LOG_DEBUG, "LOST $feed");
+ return false;
}
/**
* Grab and validate a URL from POST parameters.
- * @throws ServerException for malformed or non-http/https URLs
+ * @throws ClientException for malformed or non-http/https URLs
*/
protected function argUrl($arg)
{
if (Validate::uri($url, $params)) {
return $url;
} else {
- throw new ServerException("Invalid URL passed for $arg: '$url'", 400);
+ throw new ClientException("Invalid URL passed for $arg: '$url'");
}
}
projects / quix0rs-gnu-social.git / blobdiff