Exemplo n.º 1
0
func (c *Client) commandSender(sender ircx.Sender, to string, enc bool) func(s string, a ...interface{}) {
	return func(s string, a ...interface{}) {
		if s == "" {
			return
		}
		msg := s
		if len(a) > 0 {
			msg = fmt.Sprintf(msg, a...)
		}
		if enc {
			if key, ok := c.state.Encryption().Check(to); ok {
				data, err := dh1080.Enc([]byte(msg), []byte(key))
				if err == nil {
					msg = "+OK *" + base64.StdEncoding.EncodeToString(data)
				}
			}
		}
		newMsg := &irc.Message{
			Command:  irc.PRIVMSG,
			Params:   []string{to},
			Trailing: msg,
		}
		sender.Send(newMsg)
	}
}
Exemplo n.º 2
0
func (c *Client) encryptionStartHandler(s ircx.Sender, m *irc.Message) {
	data := strings.Split(m.Trailing, " ")
	if len(data) < 2 {
		return
	}
	if data[0] == "DH1080_INIT" {
		enc := dh1080.New()
		err := enc.Unpack(m.Trailing)
		data, err := enc.Pack()
		if err != nil {
			return
		}
		msg := &irc.Message{
			Command:  irc.NOTICE,
			Params:   []string{m.Name},
			Trailing: data + " CBC",
		}
		s.Send(msg)
		secret, err := enc.GetSecret()
		if err != nil {
			msg := &irc.Message{
				Command:  irc.PRIVMSG,
				Params:   []string{m.Name},
				Trailing: "I couldn't create the key for our chat, I won't be understanding your encrypted messages",
			}
			s.Send(msg)
		} else {
			c.state.Encryption().New(m.Name, secret)
			time.Sleep(1 * time.Second) // wait for their client to get situated
			out := fmt.Sprintf("I've stared an encrypted chat, just message %s to remove our group key", encOff)
			encryptedMessage, err := dh1080.Enc([]byte(out), []byte(secret))
			if err != nil {
				return
			}
			encryptedBaseMessage := base64.StdEncoding.EncodeToString(encryptedMessage)
			infoMessage := &irc.Message{
				Command:  irc.PRIVMSG,
				Params:   []string{m.Name},
				Trailing: "+OK *" + encryptedBaseMessage,
			}
			s.Send(infoMessage)
		}
	}
}