Add (PLAIN) SASL support

bridge/bridge.go

@@ -108,6 +108,9 @@ func NewBridge(name string, config *Config, kind string) *Bridge {
 func (b *Bridge) createIRC(name string) *irc.Connection {
 	i := irc.IRC(b.Config.IRC.Nick, b.Config.IRC.Nick)
 	i.UseTLS = b.Config.IRC.UseTLS
+	i.UseSASL = b.Config.IRC.UseSASL
+	i.SASLLogin = b.Config.IRC.NickServNick
+	i.SASLPassword = b.Config.IRC.NickServPassword
 	i.TLSConfig = &tls.Config{InsecureSkipVerify: b.Config.IRC.SkipTLSVerify}
 	if b.Config.IRC.Password != "" {
 		i.Password = b.Config.IRC.Password

bridge/config.go

@@ -9,6 +9,7 @@ import (
 type Config struct {
 	IRC struct {
 		UseTLS           bool
+		UseSASL          bool
 		SkipTLSVerify    bool
 		Server           string
 		Nick             string

matterbridge.conf.sample

@@ -11,6 +11,11 @@ Server="irc.freenode.net:6667"
 #OPTIONAL (default false)
 UseTLS=false
 
+#Enable SASL (PLAIN) authentication. (freenode requires this from eg AWS hosts)
+#It uses NickServNick and NickServPassword as login and password
+#OPTIONAL (deefault false)
+UseSASL=false
+
 #Enable to not verify the certificate on your irc server. i
 #e.g. when using selfsigned certificates
 #OPTIONAL (default false)
@@ -21,6 +26,7 @@ SkipTLSVerify=true
 Nick="matterbot"
 
 #If you registered your bot with a service like Nickserv on freenode. 
+#Also being used when UseSASL=true
 #OPTIONAL
 NickServNick="nickserv"
 NickServPassword="secret"

matterbridge.go

@@ -7,7 +7,7 @@ import (
 	log "github.com/Sirupsen/logrus"
 )
 
-var version = "0.5.0-beta1"
+var version = "0.5.0-beta2"
 
 func init() {
 	log.SetFormatter(&log.TextFormatter{FullTimestamp: true})

vendor/github.com/thoj/go-ircevent/irc.go

@@ -439,6 +439,25 @@ func (irc *Connection) Connect(server string) error {
 	if len(irc.Password) > 0 {
 		irc.pwrite <- fmt.Sprintf("PASS %s\r\n", irc.Password)
 	}
+
+	resChan := make(chan *SASLResult)
+	if irc.UseSASL {
+		irc.setupSASLCallbacks(resChan)
+		irc.pwrite <- fmt.Sprintf("CAP LS\r\n")
+		// request SASL
+		irc.pwrite <- fmt.Sprintf("CAP REQ :sasl\r\n")
+		// if sasl request doesn't complete in 15 seconds, close chan and timeout
+		select {
+		case res := <-resChan:
+			if res.Failed {
+				close(resChan)
+				return res.Err
+			}
+		case <-time.After(time.Second * 15):
+			close(resChan)
+			return errors.New("SASL setup timed out. This shouldn't happen.")
+		}
+	}
 	irc.pwrite <- fmt.Sprintf("NICK %s\r\n", irc.nick)
 	irc.pwrite <- fmt.Sprintf("USER %s 0.0.0.0 0.0.0.0 :%s\r\n", irc.user, irc.user)
 	return nil
@@ -466,6 +485,7 @@ func IRC(nick, user string) *Connection {
 		KeepAlive:   4 * time.Minute,
 		Timeout:     1 * time.Minute,
 		PingFreq:    15 * time.Minute,
+		SASLMech:    "PLAIN",
 		QuitMessage: "",
 	}
 	irc.setupCallbacks()

vendor/github.com/thoj/go-ircevent/irc_struct.go

@@ -18,6 +18,10 @@ type Connection struct {
 	Error        chan error
 	Password     string
 	UseTLS       bool
+	UseSASL      bool
+	SASLLogin    string
+	SASLPassword string
+	SASLMech     string
 	TLSConfig    *tls.Config
 	Version      string
 	Timeout      time.Duration

vendor/manifest

@@ -113,8 +113,8 @@
 		{
 			"importpath": "github.com/thoj/go-ircevent",
 			"repository": "https://github.com/thoj/go-ircevent",
-			"vcs": "",
-			"revision": "da78ed515c0f0833e7a92c7cc52898176198e2c1",
+			"vcs": "git",
+			"revision": "98c1902dd2097f38142384167e60206ba26f1585",
 			"branch": "master",
 			"notests": true
 		},