👌 Remove authenticationScheme from PostgreSQLConnection

Author: Gustl22

lib/src/auth/auth.dart

@@ -17,8 +17,8 @@ abstract class PostgresAuthenticator {
   void onMessage(AuthenticationMessage message);
 }
 
-PostgresAuthenticator createAuthenticator(PostgreSQLConnection connection) {
-  switch (connection.authenticationScheme) {
+PostgresAuthenticator createAuthenticator(PostgreSQLConnection connection, AuthenticationScheme authenticationScheme) {
+  switch (authenticationScheme) {
     case AuthenticationScheme.MD5:
       return MD5Authenticator(connection);
     case AuthenticationScheme.SCRAM_SHA_256:

lib/src/connection.dart

@@ -6,7 +6,6 @@ import 'dart:io';
 import 'dart:typed_data';
 
 import 'package:buffer/buffer.dart';
-import 'package:sasl_scram/sasl_scram.dart';
 import 'auth/auth.dart';
 
 import 'client_messages.dart';
@@ -74,9 +73,6 @@ class PostgreSQLConnection extends Object
   /// Password for authenticating this connection.
   final String? password;
 
-  /// AuthenticationScheme for authenticating this connection.
-  AuthenticationScheme authenticationScheme = AuthenticationScheme.SCRAM_SHA_256;
-
   /// Whether or not this connection should connect securely.
   final bool useSSL;
 

lib/src/connection_fsm.dart

@@ -108,12 +108,10 @@ class _PostgreSQLConnectionStateAuthenticating
         case AuthenticationMessage.KindOK:
           return _PostgreSQLConnectionStateAuthenticated(completer);
         case AuthenticationMessage.KindMD5Password:
-          // Change default auth scheme
-          connection!.authenticationScheme = AuthenticationScheme.MD5;
-          continue authInit;
-        authInit:
+          _authenticator = createAuthenticator(connection!, AuthenticationScheme.MD5);
+          continue authMsg;
         case AuthenticationMessage.KindSASL:
-          _authenticator = createAuthenticator(connection!);
+          _authenticator = createAuthenticator(connection!, AuthenticationScheme.SCRAM_SHA_256);
           continue authMsg;
         authMsg:
         case AuthenticationMessage.KindSASLContinue: