Ejemplo n.º 1
0
// SASL negotiation. RFC 6120, section 6
func (d *dialer) negotiateSASL(c interfaces.Conn) error {
	user := d.getJIDLocalpart()
	password := d.password

	if err := c.Authenticate(user, password); err != nil {
		return xe.ErrAuthenticationFailed
	}

	// RFC 6120, section 6.3.2. Restart the stream
	err := c.SendInitialStreamHeader()
	if err != nil {
		return err
	}

	return c.BindResource()
}
Ejemplo n.º 2
0
// RFC 6120, section 5.4
func (d *dialer) negotiateSTARTTLS(c interfaces.Conn, conn net.Conn) error {
	// RFC 6120, section 5.3
	mandatoryToNegotiate := c.Features().StartTLS.Required.Local == "required"
	if c.Config().SkipTLS && !mandatoryToNegotiate {
		return nil
	}

	// Section 5.2 states:
	// "Support for STARTTLS is REQUIRED in XMPP client and server implementations"
	if c.Features().StartTLS.XMLName.Local == "" {
		return errors.New("xmpp: server doesn't support TLS")
	}

	if err := d.startTLS(c, conn); err != nil {
		return err
	}

	return c.SendInitialStreamHeader()
}
Ejemplo n.º 3
0
// RFC 6120, section 4.3.2
func (d *dialer) negotiateStreamFeatures(c interfaces.Conn, conn net.Conn) error {
	if err := c.SendInitialStreamHeader(); err != nil {
		return err
	}

	// STARTTLS MUST be the first feature to be negotiated
	if err := d.negotiateSTARTTLS(c, conn); err != nil {
		return err
	}

	if registered, err := d.negotiateInBandRegistration(c); err != nil || registered {
		return err
	}

	// SASL negotiation. RFC 6120, section 6
	if err := d.negotiateSASL(c); err != nil {
		return err
	}

	//TODO: negotiate other features

	return nil
}