func (api *channellingAPI) HandleSessions(session *channelling.Session, sessions *channelling.DataSessionsRequest) (*channelling.DataSessions, error) {
switch sessions.Type {
case "contact":
if !api.config.WithModule("contacts") {
return nil, channelling.NewDataError("contacts_not_enabled", "incoming contacts session request with contacts disabled")
}
userID, err := api.ContactManager.GetContactID(session, sessions.Token)
if err != nil {
return nil, err
}
return &channelling.DataSessions{
Type: "Sessions",
Users: api.SessionManager.GetUserSessions(session, userID),
Sessions: sessions,
}, nil
case "session":
id, err := session.DecodeAttestation(sessions.Token)
if err != nil {
return nil, channelling.NewDataError("bad_attestation", err.Error())
}
session, ok := api.Unicaster.GetSession(id)
if !ok {
return nil, channelling.NewDataError("no_such_session", "cannot retrieve session")
}
return &channelling.DataSessions{
Type: "Sessions",
Users: []*channelling.DataSession{session.Data()},
Sessions: sessions,
}, nil
default:
return nil, channelling.NewDataError("bad_request", "unknown sessions request type")
}
}
func (api *channellingAPI) HandleRoom(session *channelling.Session, room *channelling.DataRoom) (*channelling.DataRoom, error) {
room, err := api.RoomStatusManager.UpdateRoom(session, room)
if err == nil {
session.Broadcast(room)
}
return room, err
}
func (api *channellingAPI) HandleAuthentication(session *channelling.Session, st *channelling.SessionToken) (*channelling.DataSelf, error) {
if err := api.SessionManager.Authenticate(session, st, ""); err != nil {
log.Println("Authentication failed", err, st.Userid, st.Nonce)
return nil, err
}
log.Println("Authentication success", session.Userid())
self, err := api.HandleSelf(session)
if err == nil {
session.BroadcastStatus()
}
return self, err
}
func (api *channellingAPI) HandleConference(session *channelling.Session, conference *channelling.DataConference) {
if room, ok := api.RoomStatusManager.Get(session.Roomid); ok && room.GetType() == channelling.RoomTypeConference {
log.Println("Refusing client-side conference update for server-managed conferences.")
return
}
// Check conference maximum size.
if len(conference.Conference) > maxConferenceSize {
log.Println("Refusing to create conference above limit.", len(conference.Conference))
return
}
// Send conference update to anyone.
for _, id := range conference.Conference {
if id != session.Id {
session.Unicast(id, conference, nil)
}
}
}
func (api *channellingAPI) HandleHello(session *channelling.Session, hello *channelling.DataHello, sender channelling.Sender) (*channelling.DataWelcome, error) {
// TODO(longsleep): Filter room id and user agent.
session.Update(&channelling.SessionUpdate{Types: []string{"Ua"}, Ua: hello.Ua})
// Compatibily for old clients.
roomName := hello.Name
if roomName == "" {
roomName = hello.Id
}
room, err := session.JoinRoom(roomName, hello.Type, hello.Credentials, sender)
if err != nil {
return nil, err
}
return &channelling.DataWelcome{
Type: "Welcome",
Room: room,
Users: api.RoomStatusManager.RoomUsers(session),
}, nil
}
func (api *channellingAPI) HandleChat(session *channelling.Session, chat *channelling.DataChat) {
// TODO(longsleep): Limit sent chat messages per incoming connection.
msg := chat.Chat
to := chat.To
if !msg.NoEcho {
session.Unicast(session.Id, chat, nil)
}
msg.Time = time.Now().Format(time.RFC3339)
if to == "" {
// TODO(longsleep): Check if chat broadcast is allowed.
if session.Hello {
api.StatsCounter.CountBroadcastChat()
session.Broadcast(chat)
}
} else {
if msg.Status != nil {
if msg.Status.ContactRequest != nil {
if !api.config.WithModule("contacts") {
return
}
if err := api.ContactManager.ContactrequestHandler(session, to, msg.Status.ContactRequest); err != nil {
log.Println("Ignoring invalid contact request.", err)
return
}
msg.Status.ContactRequest.Userid = session.Userid()
}
} else {
api.StatsCounter.CountUnicastChat()
}
session.Unicast(to, chat, nil)
if msg.Mid != "" {
// Send out delivery confirmation status chat message.
session.Unicast(session.Id, &channelling.DataChat{To: to, Type: "Chat", Chat: &channelling.DataChatMessage{Mid: msg.Mid, Status: &channelling.DataChatStatus{State: "sent"}}}, nil)
}
}
}
func (api *channellingAPI) HandleSelf(session *channelling.Session) (*channelling.DataSelf, error) {
token, err := api.SessionEncoder.EncodeSessionToken(session)
if err != nil {
log.Println("Error in OnRegister", err)
return nil, err
}
log.Println("Created new session token", len(token), token)
self := &channelling.DataSelf{
Type: "Self",
Id: session.Id,
Sid: session.Sid,
Userid: session.Userid(),
Suserid: api.SessionEncoder.EncodeSessionUserID(session),
Token: token,
Version: api.config.Version,
ApiVersion: apiVersion,
Turn: api.TurnDataCreator.CreateTurnData(session),
Stun: api.config.StunURIs,
}
api.BusManager.Trigger(channelling.BusManagerSession, session.Id, session.Userid(), nil, nil)
return self, nil
}
func (api *channellingAPI) HandleLeave(session *channelling.Session) error {
session.LeaveRoom()
return nil
}
func (api *channellingAPI) OnIncoming(sender channelling.Sender, session *channelling.Session, msg *channelling.DataIncoming) (interface{}, error) {
var pipeline *channelling.Pipeline
switch msg.Type {
case "Self":
return api.HandleSelf(session)
case "Hello":
if msg.Hello == nil {
return nil, channelling.NewDataError("bad_request", "message did not contain Hello")
}
return api.HandleHello(session, msg.Hello, sender)
case "Offer":
if msg.Offer == nil || msg.Offer.Offer == nil {
log.Println("Received invalid offer message.", msg)
break
}
if _, ok := msg.Offer.Offer["_token"]; !ok {
pipeline = api.PipelineManager.GetPipeline(channelling.PipelineNamespaceCall, sender, session, msg.Offer.To)
// Trigger offer event when offer has no token, so this is
// not triggered for peerxfer and peerscreenshare offers.
api.BusManager.Trigger(channelling.BusManagerOffer, session.Id, msg.Offer.To, nil, pipeline)
}
session.Unicast(msg.Offer.To, msg.Offer, pipeline)
case "Candidate":
if msg.Candidate == nil || msg.Candidate.Candidate == nil {
log.Println("Received invalid candidate message.", msg)
break
}
pipeline = api.PipelineManager.GetPipeline(channelling.PipelineNamespaceCall, sender, session, msg.Candidate.To)
session.Unicast(msg.Candidate.To, msg.Candidate, pipeline)
case "Answer":
if msg.Answer == nil || msg.Answer.Answer == nil {
log.Println("Received invalid answer message.", msg)
break
}
if _, ok := msg.Answer.Answer["_token"]; !ok {
pipeline = api.PipelineManager.GetPipeline(channelling.PipelineNamespaceCall, sender, session, msg.Answer.To)
// Trigger answer event when answer has no token. so this is
// not triggered for peerxfer and peerscreenshare answers.
api.BusManager.Trigger(channelling.BusManagerAnswer, session.Id, msg.Answer.To, nil, pipeline)
}
session.Unicast(msg.Answer.To, msg.Answer, pipeline)
case "Users":
return api.HandleUsers(session)
case "Authentication":
if msg.Authentication == nil || msg.Authentication.Authentication == nil {
return nil, channelling.NewDataError("bad_request", "message did not contain Authentication")
}
return api.HandleAuthentication(session, msg.Authentication.Authentication)
case "Bye":
if msg.Bye == nil {
log.Println("Received invalid bye message.", msg)
break
}
pipeline = api.PipelineManager.GetPipeline(channelling.PipelineNamespaceCall, sender, session, msg.Bye.To)
api.BusManager.Trigger(channelling.BusManagerBye, session.Id, msg.Bye.To, nil, pipeline)
session.Unicast(msg.Bye.To, msg.Bye, pipeline)
if pipeline != nil {
pipeline.Close()
}
case "Status":
if msg.Status == nil {
log.Println("Received invalid status message.", msg)
break
}
//log.Println("Status", msg.Status)
session.Update(&channelling.SessionUpdate{Types: []string{"Status"}, Status: msg.Status.Status})
session.BroadcastStatus()
case "Chat":
if msg.Chat == nil || msg.Chat.Chat == nil {
log.Println("Received invalid chat message.", msg)
break
}
api.HandleChat(session, msg.Chat)
case "Conference":
if msg.Conference == nil {
log.Println("Received invalid conference message.", msg)
break
}
api.HandleConference(session, msg.Conference)
case "Alive":
return msg.Alive, nil
case "Sessions":
if msg.Sessions == nil || msg.Sessions.Sessions == nil {
return nil, channelling.NewDataError("bad_request", "message did not contain Sessions")
}
return api.HandleSessions(session, msg.Sessions.Sessions)
case "Room":
if msg.Room == nil {
return nil, channelling.NewDataError("bad_request", "message did not contain Room")
}
return api.HandleRoom(session, msg.Room)
case "Leave":
if err := api.HandleLeave(session); err != nil {
return nil, err
}
return nil, nil
default:
log.Println("OnText unhandled message type", msg.Type)
}
return nil, nil
}
