add debugging

authenticate_message.go

@@ -3,6 +3,7 @@ package ntlmssp
 import (
 	"bytes"
 	"crypto/rand"
+	"encoding/base64"
 	"encoding/binary"
 	"errors"
 	"time"
@@ -78,13 +79,17 @@ func (m authenicateMessage) MarshalBinary() ([]byte, error) {
 	return b.Bytes(), nil
 }
 
-//ProcessChallenge crafts an AUTHENTICATE message in response to the CHALLENGE message
-//that was received from the server
+// ProcessChallenge crafts an AUTHENTICATE message in response to the CHALLENGE message
+// that was received from the server
 func ProcessChallenge(challengeMessageData []byte, user, password string) ([]byte, error) {
 	if user == "" && password == "" {
 		return nil, errors.New("Anonymous authentication not supported")
 	}
 
+	// debugging
+	PrintDebug("Received NTLM Type 2 Challenge: %s", base64.StdEncoding.EncodeToString(challengeMessageData))
+	DecodeNTLMMessage(challengeMessageData)
+
 	var cm challengeMessage
 	if err := cm.UnmarshalBinary(challengeMessageData); err != nil {
 		return nil, err