Implement sessionCreate via NATS.

.gitignore

@@ -4,7 +4,7 @@
 /src/github.com
 /src/golang.struktur.de
 /*.pprof
-/server.conf
+/server.conf*
 /*.log
 /changelog*.txt
 /src/styles/.sass-cache

go/channelling/bus.go

@@ -0,0 +1,28 @@
+/*
+ * Spreed WebRTC.
+ * Copyright (C) 2013-2015 struktur AG
+ *
+ * This file is part of Spreed WebRTC.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package channelling
+
+type SessionCreateRequest struct {
+	Id      string
+	Session *DataSession
+	Room    *DataRoom
+}

go/channelling/pipeline.go

@@ -83,7 +83,13 @@ func (pipeline *Pipeline) Add(msg *DataOutgoing) *Pipeline {
 }
 
 func (pipeline *Pipeline) Send(b buffercache.Buffer) {
-	// noop for now
+	pipeline.mutex.RLock()
+	sink := pipeline.sink
+	pipeline.mutex.RUnlock()
+	if sink != nil {
+		// Send it through sink.
+		sink.Send(b)
+	}
 }
 
 func (pipeline *Pipeline) Index() uint64 {

go/channelling/pipeline_manager.go

@@ -36,6 +36,7 @@ type PipelineManager interface {
 	BusManager
 	SessionStore
 	UserStore
+	SessionCreator
 	GetPipelineByID(id string) (pipeline *Pipeline, ok bool)
 	GetPipeline(namespace string, sender Sender, session *Session, to string) *Pipeline
 }
@@ -44,29 +45,37 @@ type pipelineManager struct {
 	BusManager
 	SessionStore
 	UserStore
-	mutex     sync.RWMutex
-	pipelines map[string]*Pipeline
-	duration  time.Duration
+	SessionCreator
+	mutex         sync.RWMutex
+	pipelineTable map[string]*Pipeline
+	sessionTable  map[string]*Session
+	duration      time.Duration
 }
 
-func NewPipelineManager(busManager BusManager, sessionStore SessionStore, userStore UserStore) PipelineManager {
+func NewPipelineManager(busManager BusManager, sessionStore SessionStore, userStore UserStore, sessionCreator SessionCreator) PipelineManager {
 	plm := &pipelineManager{
-		BusManager:   busManager,
-		SessionStore: sessionStore,
-		UserStore:    userStore,
-		pipelines:    make(map[string]*Pipeline),
-		duration:     30 * time.Minute,
+		BusManager:     busManager,
+		SessionStore:   sessionStore,
+		UserStore:      userStore,
+		SessionCreator: sessionCreator,
+		pipelineTable:  make(map[string]*Pipeline),
+		sessionTable:   make(map[string]*Session),
+		duration:       30 * time.Minute,
 	}
 	plm.start()
+
+	plm.Subscribe("channelling.session.create", plm.sessionCreate)
+	plm.Subscribe("channelling.session.close", plm.sessionClose)
+
 	return plm
 }
 
 func (plm *pipelineManager) cleanup() {
 	plm.mutex.Lock()
-	for id, pipeline := range plm.pipelines {
+	for id, pipeline := range plm.pipelineTable {
 		if pipeline.Expired() {
 			pipeline.Close()
-			delete(plm.pipelines, id)
+			delete(plm.pipelineTable, id)
 		}
 	}
 	plm.mutex.Unlock()
@@ -81,12 +90,57 @@ func (plm *pipelineManager) start() {
 	}()
 }
 
+func (plm *pipelineManager) sessionCreate(subject, reply string, msg *SessionCreateRequest) {
+	log.Println("sessionCreate via NATS", subject, reply, msg)
+
+	if msg.Session == nil || msg.Id == "" {
+		return
+	}
+
+	plm.mutex.Lock()
+	session, ok := plm.sessionTable[msg.Id]
+	if ok {
+		// Remove existing session with same ID.
+		session.Close()
+	}
+	session = plm.CreateSession(nil, "")
+	plm.sessionTable[msg.Id] = session
+	plm.mutex.Unlock()
+
+	session.Status = msg.Session.Status
+	session.SetUseridFake(msg.Session.Userid)
+	pipeline := plm.GetPipeline("", nil, session, "")
+
+	if msg.Room != nil {
+		room, err := session.JoinRoom(msg.Room.Name, msg.Room.Type, msg.Room.Credentials, pipeline)
+		log.Println("Joined NATS session to room", room, err)
+	}
+
+	session.BroadcastStatus()
+}
+
+func (plm *pipelineManager) sessionClose(subject, reply string, id string) {
+	log.Println("sessionClose via NATS", subject, reply, id)
+
+	if id == "" {
+		return
+	}
+
+	plm.mutex.Lock()
+	session, ok := plm.sessionTable[id]
+	plm.mutex.Unlock()
+
+	if ok {
+		session.Close()
+	}
+}
+
 func (plm *pipelineManager) GetPipelineByID(id string) (*Pipeline, bool) {
 	plm.mutex.RLock()
-	pipeline, ok := plm.pipelines[id]
+	pipeline, ok := plm.pipelineTable[id]
 	if !ok {
 		// XXX(longsleep): Hack for development
-		for _, pipeline = range plm.pipelines {
+		for _, pipeline = range plm.pipelineTable {
 			ok = true
 			break
 		}
@@ -103,7 +157,7 @@ func (plm *pipelineManager) GetPipeline(namespace string, sender Sender, session
 	id := plm.PipelineID(namespace, sender, session, to)
 
 	plm.mutex.Lock()
-	pipeline, ok := plm.pipelines[id]
+	pipeline, ok := plm.pipelineTable[id]
 	if ok {
 		// Refresh. We do not care if the pipeline is expired.
 		pipeline.Refresh(plm.duration)
@@ -113,7 +167,7 @@ func (plm *pipelineManager) GetPipeline(namespace string, sender Sender, session
 
 	log.Println("Creating pipeline", namespace, id)
 	pipeline = NewPipeline(plm, namespace, id, session, plm.duration)
-	plm.pipelines[id] = pipeline
+	plm.pipelineTable[id] = pipeline
 	plm.mutex.Unlock()
 
 	return pipeline

go/channelling/session_manager.go

@@ -37,7 +37,7 @@ type SessionManager interface {
 	UserStats
 	SessionStore
 	UserStore
-	CreateSession(st *SessionToken, userid string) *Session
+	SessionCreator
 	DestroySession(sessionID, userID string)
 	Authenticate(*Session, *SessionToken, string) error
 	GetUserSessions(session *Session, id string) []*DataSession
@@ -115,6 +115,9 @@ func (sessionManager *sessionManager) GetUser(id string) (*User, bool) {
 }
 
 func (sessionManager *sessionManager) CreateSession(st *SessionToken, userid string) *Session {
+	if st == nil {
+		st = sessionManager.DecodeSessionToken("")
+	}
 	session := NewSession(sessionManager, sessionManager.Unicaster, sessionManager.Broadcaster, sessionManager.RoomStatusManager, sessionManager.buddyImages, sessionManager.attestations, st.Id, st.Sid)
 
 	if userid != "" {

go/channelling/sessioncreator.go

@@ -0,0 +1,26 @@
+/*
+ * Spreed WebRTC.
+ * Copyright (C) 2013-2015 struktur AG
+ *
+ * This file is part of Spreed WebRTC.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package channelling
+
+type SessionCreator interface {
+	CreateSession(st *SessionToken, userid string) *Session
+}

go/channelling/sink.go

@@ -21,12 +21,15 @@
 
 package channelling
 
-import ()
+import (
+	"github.com/strukturag/spreed-webrtc/go/buffercache"
+)
 
 // Sink connects a Pipeline with end points in both directions by
 // getting attached to a Pipeline.
 type Sink interface {
 	// Write sends outgoing data on the sink from the
 	Write(interface{})
+	Send(buffercache.Buffer)
 	Close()
 }

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

@@ -266,7 +266,7 @@ func runner(runtime phoenix.Runtime) error {
 	sessionManager := channelling.NewSessionManager(config, tickets, hub, roomManager, roomManager, buddyImages, sessionSecret)
 	statsManager := channelling.NewStatsManager(hub, roomManager, sessionManager)
 	busManager := channelling.NewBusManager(natsClientId, natsChannellingTrigger, natsChannellingTriggerSubject)
-	pipelineManager := channelling.NewPipelineManager(busManager, sessionManager, sessionManager)
+	pipelineManager := channelling.NewPipelineManager(busManager, sessionManager, sessionManager, sessionManager)
 	channellingAPI := api.New(config, roomManager, tickets, sessionManager, statsManager, hub, hub, hub, busManager, pipelineManager)
 
 	// Add handlers.