add ConnectionMode.String() helper

UserInfo.go

@@ -28,11 +28,27 @@ const (
 type ConnectionMode rune
 
 const (
-	CONNECTIONMODE_ACTIVE  ConnectionMode = 'A'
-	CONNECTIONMODE_PASSIVE ConnectionMode = 'P'
-	CONNECTIONMODE_SOCKS5  ConnectionMode = '5'
+	CONNECTIONMODE_ACTIVE  ConnectionMode = 'A' // 65
+	CONNECTIONMODE_PASSIVE ConnectionMode = 'P' // 49
+	CONNECTIONMODE_SOCKS5  ConnectionMode = '5' // 53
 )
 
+func (this ConnectionMode) String() string {
+	switch this {
+	case CONNECTIONMODE_ACTIVE:
+		return "Active"
+
+	case CONNECTIONMODE_PASSIVE:
+		return "Passive"
+
+	case CONNECTIONMODE_SOCKS5:
+		return "SOCKS5"
+
+	default:
+		return fmt.Sprintf("ConnectionMode(\"%s\")", string(this))
+	}
+}
+
 // This structure represents a user connected to a hub.
 type UserInfo struct {
 	Nick             string