move queuedaemon into xmppdaemon

darcs-hash:20080705172837-84dde-89fa8f7e844417f8157a2ecc9b24efad267258ff.gz

1 files changed, 121 insertions, 42 deletions

diff --git a/xmppdaemon.php b/xmppdaemon.php
index a6e046579..26c395303 100755
--- a/xmppdaemon.php
+++ b/xmppdaemon.php
@@ -67,24 +67,32 @@ class XMPPDaemon {
 	}
 
 	function handle() {
+
+		static $parts = array('message', 'presence',
+							  'end_stream', 'session_start');
+
 		while(!$this->conn->disconnected) {
-			$payloads = $this->conn->processUntil(array('message', 'presence',
-														'end_stream', 'session_start'));
-			foreach($payloads as $event) {
-				$pl = $event[1];
-				$this->log(LOG_DEBUG, "Received '$event[0]': " . print_r($pl, TRUE));
-				switch($event[0]) {
-				 case 'message':
-					$this->handle_message($pl);
-					break;
-				 case 'presence':
-					$this->handle_presence($pl);
-					break;
-				 case 'session_start':
-					$this->handle_session($pl);
-					break;
+
+			$payloads = $this->conn->processUntil($parts, 10);
+
+			if ($payloads) {
+				foreach($payloads as $event) {
+					$pl = $event[1];
+					switch($event[0]) {
+					 case 'message':
+						$this->handle_message($pl);
+						break;
+					 case 'presence':
+						$this->handle_presence($pl);
+						break;
+					 case 'session_start':
+						$this->handle_session($pl);
+						break;
+					}
 				}
 			}
+
+			$this->broadcast_queue();
 		}
 	}
 
@@ -116,7 +124,7 @@ class XMPPDaemon {
 		$user = $this->get_user($from);
 
 		if (!$user) {
-			$this->from_site($from, 'Unknown user; go to ' . 
+			$this->from_site($from, 'Unknown user; go to ' .
 							 common_local_url('imsettings') .
 							 ' to add your address to your account');
 			$this->log(LOG_WARNING, 'Message from unknown user ' . $from);
@@ -133,7 +141,7 @@ class XMPPDaemon {
 		$text = '['.common_config('site', 'name') . '] ' . $msg;
 		jabber_send_message($address, $text);
 	}
-	
+
 	function handle_command($user, $body) {
 		# XXX: localise
 		switch(trim($body)) {
@@ -201,32 +209,32 @@ class XMPPDaemon {
 	function handle_presence(&$pl) {
 		$from = jabber_normalize_jid($pl['from']);
 		switch ($pl['type']) {
-			case 'subscribe':
-			    # We let anyone subscribe
-				$this->subscribed($from);
-				$this->log(LOG_INFO,
-				   'Accepted subscription from ' . $from);
-				break;
-			case 'subscribed':
-			case 'unsubscribed':
-			case 'unsubscribe':
-				$this->log(LOG_INFO,
-				   'Ignoring  "' . $pl['type'] . '" from ' . $from);
-				break;
-			default:
-				if (!$pl['type']) {
-					$user = User::staticGet('jabber', $from);
-					if (!$user) {
-						$this->log(LOG_WARNING, 'Message from unknown user ' . $from);
-						return;
-					}
-					if ($user->updatefrompresence) {
-						$this->log(LOG_INFO, 'Updating ' . $user->nickname .
-											 ' status from presence.');
-						$this->add_notice($user, $pl);
-					}
+		 case 'subscribe':
+			# We let anyone subscribe
+			$this->subscribed($from);
+			$this->log(LOG_INFO,
+					   'Accepted subscription from ' . $from);
+			break;
+		 case 'subscribed':
+		 case 'unsubscribed':
+		 case 'unsubscribe':
+			$this->log(LOG_INFO,
+					   'Ignoring  "' . $pl['type'] . '" from ' . $from);
+			break;
+		 default:
+			if (!$pl['type']) {
+				$user = User::staticGet('jabber', $from);
+				if (!$user) {
+					$this->log(LOG_WARNING, 'Message from unknown user ' . $from);
+					return;
 				}
-				break;
+				if ($user->updatefrompresence) {
+					$this->log(LOG_INFO, 'Updating ' . $user->nickname .
+							   ' status from presence.');
+					$this->add_notice($user, $pl);
+				}
+			}
+			break;
 		}
 	}
 
@@ -242,6 +250,77 @@ class XMPPDaemon {
 		$this->log(LOG_INFO, 'Setting status to "' . $status . '"');
 		jabber_send_presence($status);
 	}
+
+	function top_queue_item() {
+
+		$qi = new Queue_item();
+		$qi->orderBy('created');
+		$qi->whereAdd('claimed is NULL');
+
+		$qi->limit(1);
+
+		$cnt = $qi->find(TRUE);
+
+		if ($cnt) {
+			# XXX: potential race condition
+			# can we force it to only update if claimed is still NULL
+			# (or old)?
+			$this->log(LOG_INFO, 'claiming queue item = ' . $qi->notice_id);
+			$orig = clone($qi);
+			$qi->claimed = DB_DataObject_Cast::dateTime();
+			$result = $qi->update($orig);
+			if ($result) {
+				$this->log(LOG_INFO, 'claim succeeded.');
+				return $qi;
+			} else {
+				$this->log(LOG_INFO, 'claim failed.');
+			}
+		}
+		$qi = NULL;
+		return NULL;
+	}
+
+	function broadcast_queue() {
+		$this->clear_old_claims();
+		$this->log(LOG_INFO, 'checking for queued notices');
+		do {
+			$qi = $this->top_queue_item();
+			if ($qi) {
+				$this->log(LOG_INFO, 'Got queue item #'.$in_a_row.' enqueued '.common_exact_date($qi->created));
+				$notice = Notice::staticGet($qi->notice_id);
+				if ($notice) {
+					$this->log(LOG_INFO, 'broadcasting notice ID = ' . $notice->id);
+					# XXX: what to do if broadcast fails?
+					$result = common_real_broadcast($notice, $this->is_remote($notice));
+					if (!$result) {
+						$this->log(LOG_WARNING, 'Failed broadcast for notice ID = ' . $notice->id);
+						$orig = $qi;
+						$qi->claimed = NULL;
+						$qi->update($orig);
+						$this->log(LOG_WARNING, 'Abandoned claim for notice ID = ' . $notice->id);
+						continue;
+					}
+					$this->log(LOG_INFO, 'finished broadcasting notice ID = ' . $notice->id);
+					$notice = NULL;
+				} else {
+					$this->log(LOG_WARNING, 'queue item for notice that does not exist');
+				}
+				$qi->delete();
+			}
+		} while ($qi);
+	}
+
+	function clear_old_claims() {
+		$qi = new Queue_item();
+		$qi->claimed = NULL;
+		$qi->whereAdd('now() - claimed > '.CLAIM_TIMEOUT);
+		$qi->update(DB_DATAOBJECT_WHEREADD_ONLY);
+	}
+
+	function is_remote($notice) {
+		$user = User::staticGet($notice->profile_id);
+		return !$user;
+	}
 }
 
 $resource = ($argc > 1) ? $argv[1] : NULL;