Fix sudo pswd dialog neither re-appearing nor closing session

- Fixed that when empty password was provided the dialog should have stopped the session
- Fixed that when wrong password was provided the dialog should have appeared again but it didn't

lib/core/extension/ssh_client.dart

@@ -9,26 +9,31 @@ import 'package:toolbox/core/extension/uint8list.dart';
 
 import '../../data/res/misc.dart';
 
-typedef _OnStdout = void Function(String data, StreamSink<Uint8List> sink);
+typedef _OnStdout = void Function(String data, SSHSession session);
-typedef _OnStdin = void Function(StreamSink<Uint8List> sink);
+typedef _OnStdin = void Function(SSHSession session);
 
 typedef PwdRequestFunc = Future<String?> Function(String? user);
 
 extension SSHClientX on SSHClient {
-  Future<int?> exec(
+  Future<SSHSession> exec(
     String cmd, {
     _OnStdout? onStderr,
     _OnStdout? onStdout,
     _OnStdin? stdin,
+    bool redirectToBash = false, // not working yet. do not use
   }) async {
-    final session = await execute(cmd);
+    final session = await execute(redirectToBash ? "head -1 | bash" : cmd);
+
+    if (redirectToBash) {
+      session.stdin.add("$cmd\n".uint8List);
+    }
 
     final stdoutDone = Completer<void>();
     final stderrDone = Completer<void>();
 
     if (onStdout != null) {
       session.stdout.listen(
-        (e) => onStdout(e.string, session.stdin),
+        (e) => onStdout(e.string, session),
         onDone: stdoutDone.complete,
       );
     } else {
@@ -37,7 +42,7 @@ extension SSHClientX on SSHClient {
 
     if (onStderr != null) {
       session.stderr.listen(
-        (e) => onStderr(e.string, session.stdin),
+        (e) => onStderr(e.string, session),
         onDone: stderrDone.complete,
       );
     } else {
@@ -45,14 +50,14 @@ extension SSHClientX on SSHClient {
     }
 
     if (stdin != null) {
-      stdin(session.stdin);
+      stdin(session);
     }
 
     await stdoutDone.future;
     await stderrDone.future;
 
     session.close();
-    return session.exitCode;
+    return session;
   }
 
   Future<int?> execWithPwd(
@@ -61,32 +66,42 @@ extension SSHClientX on SSHClient {
     _OnStdout? onStdout,
     _OnStdout? onStderr,
     _OnStdin? stdin,
+    bool redirectToBash = false, // not working yet. do not use
   }) async {
     var isRequestingPwd = false;
-    return await exec(
+    final session = await exec(
       cmd,
-      onStderr: (data, sink) async {
+      redirectToBash: redirectToBash,
-        onStderr?.call(data, sink);
+      onStderr: (data, session) async {
+        debugPrint(
+            " --- execWithPwd stderr (reqPwd = $isRequestingPwd) --- $data");
+        onStderr?.call(data, session);
         if (isRequestingPwd) return;
-        isRequestingPwd = true;
+
         if (data.contains('[sudo] password for ')) {
+          isRequestingPwd = true;
           final user = Miscs.pwdRequestWithUserReg.firstMatch(data)?.group(1);
           if (context == null) return;
           final pwd = await context.showPwdDialog(user);
           if (pwd == null || pwd.isEmpty) {
-            // Add ctrl + c to exit.
+            debugPrint("Empty pwd. Exiting");
-            sink.add('\x03'.uint8List);
+            session.kill(SSHSignal.INT);
           } else {
-            sink.add('$pwd\n'.uint8List);
+            session.stdin.add('$pwd\n'.uint8List);
           }
+          isRequestingPwd = false;
         }
       },
-      onStdout: onStdout,
+      onStdout: (data, sink) async {
+        onStdout?.call(data, sink);
+        debugPrint(" --- execWithPwd stdout --- $data");
+      },
       stdin: stdin,
     );
+    return session.exitCode;
   }
 
-  Future<Uint8List> runWithSessionAction(
+  Future<Uint8List> runForOutput(
     String command, {
     bool runInPty = false,
     bool stdout = true,

lib/data/provider/server.dart

@@ -272,7 +272,7 @@ class ServerProvider extends ChangeNotifier {
 
     ensure(await client.run(ShellFunc.installerMkdirs).string);
 
-    ensure(await client.runWithSessionAction(ShellFunc.installerShellWriter,
+    ensure(await client.runForOutput(ShellFunc.installerShellWriter,
             action: (session) async {
               session.stdin.add(utf8.encode(ShellFunc.allScript));
             })

lib/view/page/storage/sftp.dart

@@ -15,7 +15,6 @@ import 'package:toolbox/data/res/logger.dart';
 import 'package:toolbox/data/res/misc.dart';
 import 'package:toolbox/data/res/provider.dart';
 import 'package:toolbox/data/res/store.dart';
-import 'package:toolbox/data/store/setting.dart';
 import 'package:toolbox/view/widget/omit_start_text.dart';
 import 'package:toolbox/view/widget/cardx.dart';