Merge branch 'release-0.23'

debian/changelog

@@ -1,3 +1,11 @@
+spreed-webrtc-server (0.23.8) precise; urgency=low
+
+  * Session subscriptions now notify close both ways.
+  * Reenable chat rooms on certain conditions related to peer connectivity.
+  * Fixed an issue where replaced sessions cannot receive data from contacts in other rooms.
+
+ -- Simon Eisenmann <simon@struktur.de>  Wed, 08 Apr 2015 17:24:59 +0200
+
 spreed-webrtc-server (0.23.7) precise; urgency=low
 
   * Updated SCSS to match coding style.

src/app/spreed-webrtc-server/client.go

@@ -43,7 +43,7 @@ type Client interface {
 	Session() *Session
 	Index() uint64
 	Close()
-	ReplaceAndClose()
+	ReplaceAndClose(Client)
 }
 
 type client struct {
@@ -87,9 +87,15 @@ func (client *client) Session() *Session {
 	return client.session
 }
 
-func (client *client) ReplaceAndClose() {
-	client.session.Close()
-	if client.Connection != nil {
-		client.Connection.Close()
-	}
+func (client *client) ReplaceAndClose(oldClient Client) {
+	oldSession := oldClient.Session()
+	client.session.Replace(oldSession)
+	go func() {
+		// Close old session and client in another go routine,
+		// to avoid blocking the new client if the old one hangs or
+		// whatever.
+		log.Printf("Closing obsolete client %d (replaced with %d) with id %s\n", oldClient.Index(), client.Index(), oldSession.Id)
+		oldSession.Close()
+		oldClient.Close()
+	}()
 }

src/app/spreed-webrtc-server/hub.go

@@ -154,12 +154,8 @@ func (h *hub) OnConnect(client Client, session *Session) {
 	log.Printf("Created client %d with id %s\n", client.Index(), session.Id)
 	// Register connection or replace existing one.
 	if ec, ok := h.clients[session.Id]; ok {
-		// Clean up old client at the end and make sure to run this in another go routine,
-		// to avoid blocking the new client if the old one hangs or whatever.
-		go func() {
-			log.Printf("Closing obsolete client %d (replaced with %d) with id %s\n", ec.Index(), client.Index(), session.Id)
-			ec.ReplaceAndClose()
-		}()
+		// Clean up old client at the end outside the hub lock.
+		defer client.ReplaceAndClose(ec)
 	}
 	h.clients[session.Id] = client
 	h.mutex.Unlock()

src/app/spreed-webrtc-server/session.go

@@ -56,6 +56,7 @@ type Session struct {
 	subscriptions map[string]*Session
 	subscribers   map[string]*Session
 	disconnected  bool
+	replaced      bool
 }
 
 func NewSession(manager SessionManager, unicaster Unicaster, broadcaster Broadcaster, rooms RoomStatusManager, buddyImages ImageCache, attestations *securecookie.SecureCookie, id, sid string) *Session {
@@ -85,16 +86,13 @@ func (s *Session) authenticated() (authenticated bool) {
 }
 
 func (s *Session) Subscribe(session *Session) {
-
 	s.mutex.Lock()
 	s.subscriptions[session.Id] = session
 	s.mutex.Unlock()
 	session.AddSubscriber(s)
-
 }
 
 func (s *Session) Unsubscribe(id string) {
-
 	s.mutex.Lock()
 	if session, ok := s.subscriptions[id]; ok {
 		delete(s.subscriptions, id)
@@ -103,7 +101,6 @@ func (s *Session) Unsubscribe(id string) {
 	} else {
 		s.mutex.Unlock()
 	}
-
 }
 
 func (s *Session) AddSubscriber(session *Session) {
@@ -209,33 +206,39 @@ func (s *Session) Close() {
 		return
 	}
 
-	outgoing := &DataOutgoing{
-		From: s.Id,
-		A:    s.attestation.Token(),
-		Data: &DataSession{
-			Type:   "Left",
-			Id:     s.Id,
-			Status: "hard",
-		},
-	}
+	// TODO(longsleep): Verify that it is ok to not do all this when replaced is true.
+	if !s.replaced {
 
-	if s.Hello {
-		// NOTE(lcooper): If we don't check for Hello here, we could deadlock
-		// when implicitly creating a room while a user is reconnecting.
-		s.Broadcaster.Broadcast(s.Id, s.Roomid, outgoing)
-		s.RoomStatusManager.LeaveRoom(s.Roomid, s.Id)
-	}
+		outgoing := &DataOutgoing{
+			From: s.Id,
+			A:    s.attestation.Token(),
+			Data: &DataSession{
+				Type:   "Left",
+				Id:     s.Id,
+				Status: "hard",
+			},
+		}
 
-	for _, session := range s.subscribers {
-		s.Unicaster.Unicast(session.Id, outgoing)
-	}
+		if s.Hello {
+			// NOTE(lcooper): If we don't check for Hello here, we could deadlock
+			// when implicitly creating a room while a user is reconnecting.
+			s.Broadcaster.Broadcast(s.Id, s.Roomid, outgoing)
+			s.RoomStatusManager.LeaveRoom(s.Roomid, s.Id)
+		}
 
-	for _, session := range s.subscriptions {
-		session.RemoveSubscriber(s.Id)
-	}
+		for _, session := range s.subscribers {
+			s.Unicaster.Unicast(session.Id, outgoing)
+		}
+
+		for _, session := range s.subscriptions {
+			session.RemoveSubscriber(s.Id)
+			s.Unicaster.Unicast(session.Id, outgoing)
+		}
 
-	s.SessionManager.DestroySession(s.Id, s.userid)
-	s.buddyImages.Delete(s.Id)
+		s.SessionManager.DestroySession(s.Id, s.userid)
+		s.buddyImages.Delete(s.Id)
+
+	}
 
 	s.subscriptions = make(map[string]*Session)
 	s.subscribers = make(map[string]*Session)
@@ -244,6 +247,27 @@ func (s *Session) Close() {
 	s.mutex.Unlock()
 }
 
+func (s *Session) Replace(oldSession *Session) {
+
+	oldSession.mutex.Lock()
+	if oldSession.disconnected {
+		oldSession.mutex.Unlock()
+		return
+	}
+
+	s.mutex.Lock()
+
+	s.subscriptions = oldSession.subscriptions
+	s.subscribers = oldSession.subscribers
+
+	s.mutex.Unlock()
+
+	// Mark old session as replaced.
+	oldSession.replaced = true
+	oldSession.mutex.Unlock()
+
+}
+
 func (s *Session) Update(update *SessionUpdate) uint64 {
 	s.mutex.Lock()
 	defer s.mutex.Unlock()

static/js/directives/chat.js

@@ -78,7 +78,7 @@ define(['jquery', 'underscore', 'text!partials/chat.html', 'text!partials/chatro
 					if (!with_message) {
 						return;
 					}
-					// No room with this id, get one with the from id
+					// No room with this id, get one with the from id.
 					$scope.$emit("startchat", from, {
 						restore: with_message
 					});
@@ -90,14 +90,19 @@ define(['jquery', 'underscore', 'text!partials/chat.html', 'text!partials/chatro
 					room.peerIsTyping = "no";
 					room.p2p( !! p2p);
 					if (room.firstmessage) {
+						// Auto show when this is the first message.
 						$scope.showRoom(room.id, null, {
 							restore: with_message
 						});
 					}
+					if (!room.enabled) {
+						// Reenable chat room when receiving messages again.
+						room.enabled = true;
+					}
 				}
 
-				room.$broadcast("received", from, data);
 				safeApply(room);
+				room.$broadcast("received", from, data);
 
 			});
 
@@ -108,10 +113,6 @@ define(['jquery', 'underscore', 'text!partials/chat.html', 'text!partials/chatro
 						case "Left":
 							if (data.Status !== "soft") {
 								room.enabled = false;
-								room.$broadcast("received", data.Id, {
-									Type: "LeftOrJoined",
-									"LeftOrJoined": "left"
-								});
 								safeApply(room);
 							}
 							break;
@@ -119,10 +120,6 @@ define(['jquery', 'underscore', 'text!partials/chat.html', 'text!partials/chatro
 							if (!room.enabled) {
 								room.enabled = true;
 								_.delay(function() {
-									room.$broadcast("received", data.Id, {
-										Type: "LeftOrJoined",
-										"LeftOrJoined": "joined"
-									});
 									safeApply(room);
 								}, 1000);
 							}
@@ -398,6 +395,22 @@ define(['jquery', 'underscore', 'text!partials/chat.html', 'text!partials/chatro
 								}
 							}
 						});
+						subscope.$watch("enabled", function(enabled, old) {
+							if (enabled === old) {
+								return;
+							}
+							//console.log("enabled", enabled, old);
+							var value;
+							if (enabled) {
+								value = "resumed";
+							} else {
+								value = "left";
+							}
+							subscope.$broadcast("received", subscope.id, {
+								Type: "LeftOrJoined",
+								"LeftOrJoined": value
+							});
+						});
 						chat(subscope, function(clonedElement, $scope) {
 
 							pane.append(clonedElement);
@@ -445,6 +458,9 @@ define(['jquery', 'underscore', 'text!partials/chat.html', 'text!partials/chatro
 								subscope.index = index;
 								subscope.visible = true;
 							}
+							if (!subscope.enabled) {
+								subscope.enabled = true;
+							}
 						}
 						if (options.autofocus && subscope.visible) {
 							subscope.$broadcast("focus");