PuSH subscription flow:
$profile->subscribe()
- generate random verification token
- save to verify_token
sends a sub request to the hub...
main/push/callback
// PuSH subscription data
public $huburi;
public $secret;
- public $verify_token;
- public $sub_state; // subscribe, active, unsubscribe, inactive
+ public $sub_state; // subscribe, active, unsubscribe, inactive, nohub
public $sub_start;
public $sub_end;
public $last_update;
'id' => array('type' => 'serial', 'not null' => true, 'description' => 'FeedSub local unique id'),
'uri' => array('type' => 'varchar', 'not null' => true, 'length' => 255, 'description' => 'FeedSub uri'),
'huburi' => array('type' => 'text', 'description' => 'FeedSub hub-uri'),
- 'verify_token' => array('type' => 'text', 'description' => 'FeedSub verify-token'),
'secret' => array('type' => 'text', 'description' => 'FeedSub stored secret'),
- 'sub_state' => array('type' => 'enum("subscribe","active","unsubscribe","inactive")', 'not null' => true, 'description' => 'subscription state'),
+ 'sub_state' => array('type' => 'enum("subscribe","active","unsubscribe","inactive","nohub")', 'not null' => true, 'description' => 'subscription state'),
'sub_start' => array('type' => 'datetime', 'description' => 'subscription start'),
'sub_end' => array('type' => 'datetime', 'description' => 'subscription end'),
'last_update' => array('type' => 'datetime', 'not null' => true, 'description' => 'when this record was last updated'),
);
}
+ /**
+ * Get the feed uri (http/https)
+ */
+ public function getUri()
+ {
+ if (empty($this->uri)) {
+ throw new ServerException('No URI for FeedSub entry');
+ }
+ return $this->uri;
+ }
+
+ /**
+ * Do we have a hub? Then we are a PuSH feed.
+ * https://en.wikipedia.org/wiki/PubSubHubbub
+ *
+ * If huburi is empty, then doublecheck that we are not using
+ * a fallback hub. If there is a fallback hub, it is only if the
+ * sub_state is "nohub" that we assume it's not a PuSH feed.
+ */
+ public function isPuSH()
+ {
+ if (empty($this->huburi)
+ && (!common_config('feedsub', 'fallback_hub')
+ || $this->sub_state === 'nohub')) {
+ // Here we have no huburi set. Also, either there is no
+ // fallback hub configured or sub_state is "nohub".
+ return false;
+ }
+ return true;
+ }
+
/**
* Fetch the StatusNet-side profile for this feed
* @return Profile
public static function ensureFeed($feeduri)
{
$current = self::getKV('uri', $feeduri);
- if ($current) {
+ if ($current instanceof FeedSub) {
return $current;
}
$feedsub->modified = common_sql_now();
$result = $feedsub->insert();
- if (empty($result)) {
+ if ($result === false) {
throw new FeedDBException($feedsub);
}
* @return bool true on success, false on failure
* @throws ServerException if feed state is not valid
*/
- public function subscribe($mode='subscribe')
+ public function subscribe()
{
if ($this->sub_state && $this->sub_state != 'inactive') {
- common_log(LOG_WARNING, "Attempting to (re)start PuSH subscription to $this->uri in unexpected state $this->sub_state");
+ common_log(LOG_WARNING, sprintf('Attempting to (re)start PuSH subscription to %s in unexpected state %s', $this->getUri(), $this->sub_state));
+ }
+
+ if (!Event::handle('FeedSubscribe', array($this))) {
+ // A plugin handled it
+ return true;
}
+
if (empty($this->huburi)) {
if (common_config('feedsub', 'fallback_hub')) {
// No native hub on this feed?
*/
public function unsubscribe() {
if ($this->sub_state != 'active') {
- common_log(LOG_WARNING, "Attempting to (re)end PuSH subscription to $this->uri in unexpected state $this->sub_state");
+ common_log(LOG_WARNING, sprintf('Attempting to (re)end PuSH subscription to %s in unexpected state %s', $this->getUri(), $this->sub_state));
}
+
+ if (!Event::handle('FeedUnsubscribe', array($this))) {
+ // A plugin handled it
+ return true;
+ }
+
if (empty($this->huburi)) {
if (common_config('feedsub', 'fallback_hub')) {
// No native hub on this feed?
Event::handle('FeedSubSubscriberCount', array($this, &$count));
if ($count) {
- common_log(LOG_INFO, __METHOD__ . ': ok, ' . $count . ' user(s) left for ' . $this->uri);
+ common_log(LOG_INFO, __METHOD__ . ': ok, ' . $count . ' user(s) left for ' . $this->getUri());
return false;
} else {
- common_log(LOG_INFO, __METHOD__ . ': unsubscribing, no users left for ' . $this->uri);
+ common_log(LOG_INFO, __METHOD__ . ': unsubscribing, no users left for ' . $this->getUri());
return $this->unsubscribe();
}
}
}
+ static public function renewalCheck()
+ {
+ $fs = new FeedSub();
+ // the "" empty string check is because we historically haven't saved unsubscribed feeds as NULL
+ $fs->whereAdd('sub_end IS NOT NULL AND sub_end!="" AND sub_end < NOW() - INTERVAL 1 day');
+ if (!$fs->find()) { // find can be both false and 0, depending on why nothing was found
+ throw new NoResultException($fs);
+ }
+ return $fs;
+ }
+
+ public function renew()
+ {
+ $this->subscribe();
+ }
+
+ /**
+ * Setting to subscribe means it is _waiting_ to become active. This
+ * cannot be done in a transaction because there is a chance that the
+ * remote script we're calling (as in the case of PuSHpress) performs
+ * the lookup _while_ we're POSTing data, which means the transaction
+ * never completes (PushcallbackAction gets an 'inactive' state).
+ *
+ * @return boolean true on successful sub/unsub, false on failure
+ */
protected function doSubscribe($mode)
{
$orig = clone($this);
- $this->verify_token = common_good_rand(16);
if ($mode == 'subscribe') {
- $this->secret = common_good_rand(32);
+ $this->secret = common_random_hexstr(32);
}
$this->sub_state = $mode;
$this->update($orig);
$headers = array('Content-Type: application/x-www-form-urlencoded');
$post = array('hub.mode' => $mode,
'hub.callback' => $callback,
- 'hub.verify' => 'sync',
- 'hub.verify_token' => $this->verify_token,
+ 'hub.verify' => 'async', // TODO: deprecated, remove when noone uses PuSH <0.4 (only 'async' method used there)
+ 'hub.verify_token' => 'Deprecated-since-PuSH-0.4', // TODO: rm!
+
'hub.secret' => $this->secret,
- 'hub.topic' => $this->uri);
+ 'hub.topic' => $this->getUri());
$client = new HTTPClient();
if ($this->huburi) {
$hub = $this->huburi;
if ($status == 202) {
common_log(LOG_INFO, __METHOD__ . ': sub req ok, awaiting verification callback');
return true;
- } else if ($status == 204) {
- common_log(LOG_INFO, __METHOD__ . ': sub req ok and verified');
- return true;
} else if ($status >= 200 && $status < 300) {
common_log(LOG_ERR, __METHOD__ . ": sub req returned unexpected HTTP $status: " . $response->getBody());
- return false;
} else {
common_log(LOG_ERR, __METHOD__ . ": sub req failed with HTTP $status: " . $response->getBody());
- return false;
}
} catch (Exception $e) {
// wtf!
- common_log(LOG_ERR, __METHOD__ . ": error \"{$e->getMessage()}\" hitting hub $this->huburi subscribing to $this->uri");
+ common_log(LOG_ERR, __METHOD__ . ": error \"{$e->getMessage()}\" hitting hub $this->huburi subscribing to " . $this->getUri());
$orig = clone($this);
- $this->verify_token = '';
$this->sub_state = 'inactive';
$this->update($orig);
unset($orig);
-
- return false;
}
+ return false;
}
/**
*
* @param int $lease_seconds provided hub.lease_seconds parameter, if given
*/
- public function confirmSubscribe($lease_seconds=0)
+ public function confirmSubscribe($lease_seconds)
{
$original = clone($this);
if ($lease_seconds > 0) {
$this->sub_end = common_sql_date(time() + $lease_seconds);
} else {
- $this->sub_end = null;
+ $this->sub_end = null; // Backwards compatibility to StatusNet (PuSH <0.4 supported permanent subs)
}
$this->modified = common_sql_now();
$original = clone($this);
// @fixme these should all be null, but DB_DataObject doesn't save null values...?????
- $this->verify_token = '';
$this->secret = '';
$this->sub_state = '';
$this->sub_start = '';
*/
public function receive($post, $hmac)
{
- common_log(LOG_INFO, __METHOD__ . ": packet for \"$this->uri\"! $hmac $post");
+ common_log(LOG_INFO, __METHOD__ . ": packet for \"" . $this->getUri() . "\"! $hmac $post");
if ($this->sub_state != 'active') {
- common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH for inactive feed $this->uri (in state '$this->sub_state')");
+ common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH for inactive feed " . $this->getUri() . " (in state '$this->sub_state')");
return;
}
if ($tempfile) {
file_put_contents($tempfile, $post);
}
- common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH with bad SHA-1 HMAC: got $their_hmac, expected $our_hmac for feed $this->uri on $this->huburi; saved to $tempfile");
+ common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH with bad SHA-1 HMAC: got $their_hmac, expected $our_hmac for feed " . $this->getUri() . " on $this->huburi; saved to $tempfile");
} else {
- common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH with bad SHA-1 HMAC: got $their_hmac, expected $our_hmac for feed $this->uri on $this->huburi");
+ common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH with bad SHA-1 HMAC: got $their_hmac, expected $our_hmac for feed " . $this->getUri() . " on $this->huburi");
}
} else {
common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH with bogus HMAC '$hmac'");
projects / quix0rs-gnu-social.git / blobdiff