Example #1
0
func (this *Server) getSession(svc *service, req *message.ConnectMessage, resp *message.ConnackMessage) error {
	// If CleanSession is set to 0, the server MUST resume communications with the
	// client based on state from the current session, as identified by the client
	// identifier. If there is no session associated with the client identifier the
	// server must create a new session.
	//
	// If CleanSession is set to 1, the client and server must discard any previous
	// session and start a new one. This session lasts as long as the network c
	// onnection. State data associated with this session must not be reused in any
	// subsequent session.

	var err error

	// Check to see if the client supplied an ID, if not, generate one and set
	// clean session.
	if len(req.ClientId()) == 0 {
		req.SetClientId([]byte(fmt.Sprintf("internalclient%d", svc.id)))
		req.SetCleanSession(true)
	}

	cid := string(req.ClientId())

	// If CleanSession is NOT set, check the session store for existing session.
	// If found, return it.
	// if !req.CleanSession() {
	// 	if svc.sess, err = this.sessMgr.Get(cid); err == nil {
	// 		resp.SetSessionPresent(true)
	//
	// 		if err := svc.sess.Update(req); err != nil {
	// 			return err
	// 		}
	// 	}
	// }

	//   this.sessMgr.Del(cid)

	// If CleanSession, or no existing session found, then create a new one
	if svc.sess == nil {
		if svc.sess, err = this.sessMgr.New(cid); err != nil {
			return err
		}

		resp.SetSessionPresent(false)

		if err := svc.sess.Init(req); err != nil {
			return err
		}
	}

	return nil
}
Example #2
0
func (this *Session) Init(msg *message.ConnectMessage) error {
	this.mu.Lock()
	defer this.mu.Unlock()

	if this.initted {
		return fmt.Errorf("Session already initialized")
	}

	this.cbuf = make([]byte, msg.Len())
	this.Cmsg = message.NewConnectMessage()

	if _, err := msg.Encode(this.cbuf); err != nil {
		return err
	}

	if _, err := this.Cmsg.Decode(this.cbuf); err != nil {
		return err
	}

	if this.Cmsg.WillFlag() {
		this.Will = message.NewPublishMessage()
		this.Will.SetQoS(this.Cmsg.WillQos())
		this.Will.SetTopic(this.Cmsg.WillTopic())
		this.Will.SetPayload(this.Cmsg.WillMessage())
		this.Will.SetRetain(this.Cmsg.WillRetain())
	}

	this.topics = make(map[string]byte, 1)

	this.id = string(msg.ClientId())

	this.Pub1ack = newAckqueue(defaultQueueSize)
	this.Pub2in = newAckqueue(defaultQueueSize)
	this.Pub2out = newAckqueue(defaultQueueSize)
	this.Suback = newAckqueue(defaultQueueSize)
	this.Unsuback = newAckqueue(defaultQueueSize)
	this.Pingack = newAckqueue(defaultQueueSize)

	this.initted = true

	return nil
}