remove TLS support (should be provided by a reverse proxy)

--HG--
branch : nmdc-ircfrontend

main.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"crypto/tls"
 	"flag"
 	"log"
 	"os"
@@ -9,8 +8,6 @@ import (
 )
 
 var (
-	tlsKeyFile  = flag.String("tls-key", "tls.key", "The private key file used for TLS")
-	tlsCertFile = flag.String("tls-cert", "tls.crt", "The certificate file used for TLS")
 	ircAddress  = flag.String("irc-address", ":6697", "The address:port to bind to and listen for clients on")
 	serverName  = flag.String("irc-servername", "rosella", "Server name displayed to clients")
 	authFile    = flag.String("irc-authfile", "", "File containing usernames and passwords of operators.")
@@ -71,34 +68,8 @@ func main() {
 		server.motd = string(data[:size])
 	}
 
-	tlsConfig := new(tls.Config)
-
-	tlsConfig.PreferServerCipherSuites = true
-	tlsConfig.CipherSuites = []uint16{
-		tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
-		tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
-		tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
-		tls.TLS_RSA_WITH_AES_256_CBC_SHA,
-		tls.TLS_RSA_WITH_AES_128_CBC_SHA,
-		tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA}
-
-	cert, err := tls.LoadX509KeyPair(*tlsCertFile, *tlsKeyFile)
+	listener, err := net.Listen("tcp", *ircAddress)
 	if err != nil {
-		log.Printf("Error loading tls certificate and key files.")
-		log.Printf(err.Error())
-		return
-	}
-
-	log.Printf("Loaded certificate and key successfully.")
-
-	tlsConfig.Certificates = []tls.Certificate{cert}
-
-	//Fills out tlsConfig.NameToCertificate
-	tlsConfig.BuildNameToCertificate()
-
-	tlsListener, err := tls.Listen("tcp", *ircAddress, tlsConfig)
-	if err != nil {
-		log.Printf("Could not open tls listener.")
 		log.Printf(err.Error())
 		return
 	}
@@ -108,7 +79,7 @@ func main() {
 	log.Printf("Listening on %s", *ircAddress)
 
 	for {
-		conn, err := tlsListener.Accept()
+		conn, err := listener.Accept()
 		if err != nil {
 			log.Printf("Error accepting connection.")
 			log.Printf(err.Error())