Add option to pass Authentication Scheme

README.md

@@ -58,7 +58,9 @@ httpntlm.get({
 - `password:` _{String}_   Password (optional, default: '')
 - `workstation:` _{String}_ Name of workstation (optional, default: '')
 - `domain:`   _{String}_   Name of domain (optional, default: '')
+- `auth_scheme:` _{String}_ [Authentication Scheme](https://learn.microsoft.com/en-us/dotnet/framework/wcf/feature-details/understanding-http-authentication#http-authentication-schemes) to use (optional, default: 'NTLM')
 - `agent:`   _{Agent}_   In case you want to reuse the keepaliveAgent over different calls (optional)
+- 
 - `headers:`   _{Object}_   Add in custom headers. The following headers are used by NTLM and cannot be passed: `Connection`, `Authorization` (optional)
 
 if you already got the encrypted password,you should use this two param to replace the 'password' param.

httpntlm.js

@@ -74,8 +74,15 @@ exports.method = function(method, options, finalCallback){
 		if(!res.headers['www-authenticate'])
 			return callback(new Error('www-authenticate not found on response of second request'));
 
+		// pass along the auth_scheme option to the parseType2Message function
+		var type2options = options.auth_scheme ? {auth_scheme: options.auth_scheme} : undefined; 
+
 		// parse type2 message from server:
-		var type2msg = ntlm.parseType2Message(res.headers['www-authenticate'], callback); //callback only happens on errors
+		var type2msg = ntlm.parseType2Message(
+      res.headers["www-authenticate"],
+      callback,
+      type2options
+    ); //callback only happens on errors
 		if(!type2msg) return; // if callback returned an error, the parse-function returns with null
 
 		// create type3 message:

ntlm.js

@@ -112,13 +112,18 @@ function createType1Message(options){
 	if(workstation.length !=0) buf.write(workstation, pos, workstation.length, 'ascii'); pos += workstation.length; // workstation string
 	if(domain.length !=0)      buf.write(domain     , pos, domain.length     , 'ascii'); pos += domain.length; // domain string
 
-	return 'NTLM ' + buf.toString('base64');
+	return `${options?.auth_scheme ?? "NTLM"} ` + buf.toString("base64");
 }
 
-function parseType2Message(rawmsg, callback){
-	var match = rawmsg.match(/NTLM (.+)?/);
+function parseType2Message(rawmsg, callback, options){
+	var authScheme = options?.auth_scheme ?? "NTLM";
+	var match = rawmsg.match(new RegExp(`${authScheme} (.+)?`));
 	if(!match || !match[1]) {
-		callback(new Error("Couldn't find NTLM in the message type2 coming from the server"));
+		callback(
+      new Error(
+        `Couldn't find ${authScheme} in the message type2 coming from the server`
+      )
+    );
 		return null;
 	}
 
@@ -267,7 +272,7 @@ function createType3Message(msg2, options){
 	ntChallengeResponse.copy(buf, pos); pos += ntChallengeResponse.length;
 	encryptedRandomSessionKeyBytes.copy(buf, pos); pos += encryptedRandomSessionKeyBytes.length;
 
-	return 'NTLM ' + buf.toString('base64');
+	return `${options?.auth_scheme ?? "NTLM"} ` + buf.toString("base64");
 }
 
 function create_LM_hashed_password_v1(password){