ZModem

example/lib/main.dart

@@ -5,17 +5,10 @@ import 'package:example/src/platform_menu.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-import 'package:flutter_acrylic/flutter_acrylic.dart';
 import 'package:flutter_pty/flutter_pty.dart';
 import 'package:xterm/xterm.dart';
 
 void main() {
-  WidgetsFlutterBinding.ensureInitialized();
-
-  if (isDesktop) {
-    setupAcrylic();
-  }
-
   runApp(MyApp());
 }
 
@@ -28,13 +21,6 @@ bool get isDesktop {
   ].contains(defaultTargetPlatform);
 }
 
-Future<void> setupAcrylic() async {
-  await Window.initialize();
-  await Window.makeTitlebarTransparent();
-  await Window.setEffect(effect: WindowEffect.aero, color: Color(0xFFFFFFFF));
-  await Window.setBlurViewState(MacOSBlurViewState.active);
-}
-
 class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {

example/lib/mock.dart

@@ -1,17 +1,8 @@
-import 'dart:async';
-
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter_acrylic/flutter_acrylic.dart';
 import 'package:xterm/xterm.dart';
 
 void main() {
-  WidgetsFlutterBinding.ensureInitialized();
-
-  if (isDesktop) {
-    setupAcrylic();
-  }
-
   runApp(MyApp());
 }
 
@@ -24,13 +15,6 @@ bool get isDesktop {
   ].contains(defaultTargetPlatform);
 }
 
-Future<void> setupAcrylic() async {
-  await Window.initialize();
-  await Window.makeTitlebarTransparent();
-  await Window.setEffect(effect: WindowEffect.aero);
-  await Window.setBlurViewState(MacOSBlurViewState.active);
-}
-
 class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {

example/lib/zmodem.dart

@@ -0,0 +1,199 @@
+import 'dart:async';
+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:dartssh2/dartssh2.dart';
+import 'package:example/src/virtual_keyboard.dart';
+import 'package:file_picker/file_picker.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:path/path.dart' as path;
+import 'package:xterm/xterm.dart';
+
+const host = 'localhost';
+const port = 22;
+const username = '<your username>';
+const password = '<your password>';
+
+void main() {
+  runApp(MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoApp(
+      title: 'xterm.dart demo',
+      home: MyHomePage(),
+    );
+  }
+}
+
+class MyHomePage extends StatefulWidget {
+  MyHomePage({Key? key}) : super(key: key);
+
+  @override
+  // ignore: library_private_types_in_public_api
+  _MyHomePageState createState() => _MyHomePageState();
+}
+
+class _MyHomePageState extends State<MyHomePage> {
+  late final terminal = Terminal(inputHandler: keyboard);
+
+  final keyboard = VirtualKeyboard(defaultInputHandler);
+
+  var title = host;
+
+  @override
+  void initState() {
+    super.initState();
+    initTerminal();
+  }
+
+  Future<void> initTerminal() async {
+    terminal.write('Connecting...\r\n');
+
+    final client = SSHClient(
+      await SSHSocket.connect(host, port),
+      username: username,
+      onPasswordRequest: () => password,
+    );
+
+    terminal.write('Connected\r\n');
+
+    final session = await client.shell(
+      pty: SSHPtyConfig(
+        width: terminal.viewWidth,
+        height: terminal.viewHeight,
+      ),
+    );
+
+    terminal.buffer.clear();
+    terminal.buffer.setCursor(0, 0);
+
+    terminal.onTitleChange = (title) {
+      setState(() => this.title = title);
+    };
+
+    terminal.onResize = (width, height, pixelWidth, pixelHeight) {
+      session.resizeTerminal(width, height, pixelWidth, pixelHeight);
+    };
+
+    final mux = ZModemMux(
+      stdin: session.stdin,
+      stdout: session.stdout,
+    );
+
+    mux.onTerminalInput = terminal.write;
+    mux.onFileOffer = _handleFileOffer;
+    mux.onFileRequest = _handleFileRequest;
+
+    terminal.onOutput = mux.terminalWrite;
+  }
+
+  void _handleFileOffer(ZModemOffer offer) async {
+    print(offer.info);
+
+    final outputDir = await FilePicker.platform.getDirectoryPath();
+
+    if (outputDir == null) {
+      offer.skip();
+      return;
+    }
+
+    final file = File(path.join(outputDir, offer.info.pathname));
+
+    void updateProgress(int received) {
+      final length = offer.info.length;
+      if (length != null) {
+        terminal.write('\r');
+        terminal.write('\x1b[K');
+        terminal.write('${offer.info.pathname}: ');
+        terminal.write((received / length * 100).toStringAsFixed(1));
+        terminal.write('%');
+      }
+    }
+
+    await offer
+        .accept(0)
+        .cast<List<int>>()
+        .transform(WithProgress(onProgress: updateProgress))
+        .pipe(file.openWrite());
+
+    terminal.write('\r\n');
+    terminal.write('Received ${offer.info.pathname}');
+  }
+
+  Future<Iterable<ZModemOffer>> _handleFileRequest() async {
+    final result = await FilePicker.platform.pickFiles(withReadStream: true);
+
+    if (result == null) {
+      return [];
+    }
+
+    void updateProgress(PlatformFile file, int received) {
+      terminal.write('\r');
+      terminal.write('\x1b[K');
+      terminal.write('${file.name}: ');
+      terminal.write((received / file.size * 100).toStringAsFixed(1));
+      terminal.write('%');
+    }
+
+    return result.files.map(
+      (file) => ZModemCallbackOffer(
+        ZModemFileInfo(
+          pathname: path.basename(file.path!),
+          length: file.size,
+          mode: '100644',
+          filesRemaining: 1,
+          bytesRemaining: file.size,
+        ),
+        onAccept: (offset) => file.readStream!
+            .skip(offset)
+            .transform(
+              WithProgress(onProgress: (bytes) => updateProgress(file, bytes)),
+            )
+            .cast<Uint8List>(),
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoPageScaffold(
+      navigationBar: CupertinoNavigationBar(
+        middle: Text(title),
+        backgroundColor:
+            CupertinoTheme.of(context).barBackgroundColor.withOpacity(0.5),
+      ),
+      child: Column(
+        children: [
+          Expanded(
+            child: TerminalView(terminal),
+          ),
+          VirtualKeyboardView(keyboard),
+        ],
+      ),
+    );
+  }
+}
+
+class WithProgress<T> extends StreamTransformerBase<List<T>, List<T>> {
+  WithProgress({this.onProgress});
+
+  void Function(int progress)? onProgress;
+
+  var _progress = 0;
+
+  int get progress => _progress;
+
+  @override
+  Stream<List<T>> bind(Stream<List<T>> stream) {
+    return stream.transform(StreamTransformer<List<T>, List<T>>.fromHandlers(
+      handleData: (List<T> data, EventSink<List<T>> sink) {
+        _progress += data.length;
+        onProgress?.call(_progress);
+        sink.add(data);
+      },
+    ));
+  }
+}

example/pubspec.lock

@@ -5,205 +5,187 @@ packages:
     dependency: transitive
     description:
       name: _fe_analyzer_shared
-      sha256: d976d24314f193899a3079b14fe336215a63a3b1e1c3743eabba8f83e049e9a9
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "49.0.0"
   after_layout:
     dependency: "direct main"
     description:
       name: after_layout
-      sha256: "95a1cb2ca1464f44f14769329fbf15987d20ab6c88f8fc5d359bd362be625f29"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   analyzer:
     dependency: transitive
     description:
       name: analyzer
-      sha256: "40ba2c6d2ab41a66476f8f1f099da6be0795c1b47221f5e2c5f8ad6048cdffae"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.1.0"
   analyzer_plugin:
     dependency: transitive
     description:
       name: analyzer_plugin
-      sha256: c1d5f167683de03d5ab6c3b53fc9aeefc5d59476e7810ba7bbddff50c6f4392d
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.11.2"
   ansicolor:
     dependency: transitive
     description:
       name: ansicolor
-      sha256: "607f8fa9786f392043f169898923e6c59b4518242b68b8862eb8a8b7d9c30b4a"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   args:
     dependency: transitive
     description:
       name: args
-      sha256: "139d809800a412ebb26a3892da228b2d0ba36f0ef5d9a82166e5e52ec8d61611"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.3.2"
+    version: "2.4.0"
   asn1lib:
     dependency: transitive
     description:
       name: asn1lib
-      sha256: ab96a1cb3beeccf8145c52e449233fe68364c9641623acd3adad66f8184f1039
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.4.0"
   async:
     dependency: transitive
     description:
       name: async
-      sha256: bfe67ef28df125b7dddcea62755991f807aa39a2492a23e1550161692950bbe0
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.10.0"
+    version: "2.9.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
-      sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.0"
   characters:
     dependency: transitive
     description:
       name: characters
-      sha256: e6a326c8af69605aec75ed6c187d06b349707a27fbff8222ca9cc2cff167975c
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.1"
   clock:
     dependency: transitive
     description:
       name: clock
-      sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
   collection:
     dependency: transitive
     description:
       name: collection
-      sha256: cfc915e6923fe5ce6e153b0723c753045de46de1b4d63771530504004a45fae0
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.17.0"
+    version: "1.16.0"
   convert:
     dependency: transitive
     description:
       name: convert
-      sha256: "0f08b14755d163f6e2134cb58222dd25ea2a2ee8a195e53983d57c075324d592"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.1"
   crypto:
     dependency: transitive
     description:
       name: crypto
-      sha256: aa274aa7774f8964e4f4f38cc994db7b6158dd36e9187aaceaddc994b35c6c67
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.2"
   csslib:
     dependency: transitive
     description:
       name: csslib
-      sha256: b36c7f7e24c0bdf1bf9a3da461c837d1de64b9f8beb190c9011d8c72a3dfd745
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.17.2"
-  cupertino_icons:
-    dependency: "direct main"
-    description:
-      name: cupertino_icons
-      sha256: a937da4c006989739ceb4d10e3bd6cce64ca85d0fe287fc5b2b9f6ee757dcee6
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.1.3"
   dart_code_metrics:
     dependency: "direct dev"
     description:
       name: dart_code_metrics
-      sha256: "219607f5abbf4c0d254ca39ee009f9ff28df91c40aef26718fde15af6b7a6c24"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.21.3"
+  dart_console:
+    dependency: transitive
+    description:
+      name: dart_console
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.2"
   dart_style:
     dependency: transitive
     description:
       name: dart_style
-      sha256: "7a03456c3490394c8e7665890333e91ae8a49be43542b616e414449ac358acd4"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.4"
+    version: "2.2.5"
   dartssh2:
     dependency: "direct main"
     description:
       name: dartssh2
-      sha256: "4c44ad7bb6a12cd56f775fc72b64e81fcc3f7971dc731c48359f2aa551d6f6a7"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.7.3"
+    version: "2.8.2"
   equatable:
     dependency: transitive
     description:
       name: equatable
-      sha256: c2b87cb7756efdf69892005af546c56c0b5037f54d2a88269b4f347a505e3ca2
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.5"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.1"
   ffi:
     dependency: transitive
     description:
       name: ffi
-      sha256: a38574032c5f1dd06c4aee541789906c12ccaab8ba01446e800d9c5b79c4a978
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   file:
     dependency: transitive
     description:
       name: file
-      sha256: "1b92bec4fc2a72f59a8e15af5f52cd441e4a7860b49499d69dfa817af20e925d"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "6.1.4"
+  file_picker:
+    dependency: "direct main"
+    description:
+      name: file_picker
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.0.1"
   flutter:
     dependency: "direct main"
     description: flutter
     source: sdk
     version: "0.0.0"
-  flutter_acrylic:
-    dependency: "direct main"
+  flutter_plugin_android_lifecycle:
+    dependency: transitive
     description:
-      name: flutter_acrylic
-      sha256: "142304f28d1775da21dc8e3183971a0610943ff0fedc3a877d6d08f47478679b"
-      url: "https://pub.dev"
+      name: flutter_plugin_android_lifecycle
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0+1"
+    version: "2.0.12"
   flutter_pty:
     dependency: "direct main"
     description:
       name: flutter_pty
-      sha256: "1f3114f125e4c447866511560818d6ac368471712cc952a25b5a06586aa80b64"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.3.1"
   flutter_test:
@@ -211,180 +193,170 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   glob:
     dependency: transitive
     description:
       name: glob
-      sha256: "4515b5b6ddb505ebdd242a5f2cc5d22d3d6a80013789debfbda7777f47ea308c"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
   html:
     dependency: transitive
     description:
       name: html
-      sha256: d9793e10dbe0e6c364f4c59bf3e01fb33a9b2a674bc7a1081693dba0614b6269
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.15.1"
+    version: "0.15.2"
   http:
     dependency: transitive
     description:
       name: http
-      sha256: "6aa2946395183537c8b880962d935877325d6a09a2867c3970c05c0fed6ac482"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.13.5"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
-      sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.2"
+  intl:
+    dependency: transitive
+    description:
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.17.0"
   js:
     dependency: transitive
     description:
       name: js
-      sha256: "5528c2f391ededb7775ec1daa69e65a2d61276f7552de2b5f7b8d34ee9fd4ab7"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.6.5"
+    version: "0.6.4"
   json_annotation:
     dependency: transitive
     description:
       name: json_annotation
-      sha256: c33da08e136c3df0190bd5bbe51ae1df4a7d96e7954d1d7249fea2968a72d317
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.8.0"
   lints:
     dependency: "direct dev"
     description:
       name: lints
-      sha256: "5e4a9cd06d447758280a8ac2405101e0e2094d2a1dbdd3756aec3fe7775ba593"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
-  macos_window_utils:
-    dependency: transitive
-    description:
-      name: macos_window_utils
-      sha256: ece6315199f84931d7e32869aa3d8d4d2a82e6f4416ed292f9cf9345b0105feb
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.0.2"
   matcher:
     dependency: transitive
     description:
       name: matcher
-      sha256: "16db949ceee371e9b99d22f88fa3a73c4e59fd0afed0bd25fc336eb76c198b72"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.13"
+    version: "0.12.12"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.0"
+    version: "0.1.5"
   meta:
     dependency: transitive
     description:
       name: meta
-      sha256: "6c268b42ed578a53088d834796959e4a1814b5e9e164f147f580a386e5decf42"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
   package_config:
     dependency: transitive
     description:
       name: package_config
-      sha256: "1c5b77ccc91e4823a5af61ee74e6b972db1ef98c2ff5a18d3161c982a55448bd"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   path:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: path
-      sha256: db9d4f58c908a4ba5953fcee2ae317c94889433e5024c27ce74a37f94267945b
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.2"
   petitparser:
     dependency: transitive
     description:
       name: petitparser
-      sha256: "49392a45ced973e8d94a85fdb21293fbb40ba805fc49f2965101ae748a3683b4"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.1.0"
   pinenacl:
     dependency: transitive
     description:
       name: pinenacl
-      sha256: "3a5503637587d635647c93ea9a8fecf48a420cc7deebe6f1fc85c2a5637ab327"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.5.1"
   platform:
     dependency: transitive
     description:
       name: platform
-      sha256: "4a451831508d7d6ca779f7ac6e212b4023dd5a7d08a27a63da33756410e32b76"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.0"
   platform_info:
     dependency: transitive
     description:
       name: platform_info
-      sha256: "012e73712166cf0b56d3eb95c0d33491f56b428c169eca385f036448474147e4"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.2.0"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.4"
   pointycastle:
     dependency: transitive
     description:
       name: pointycastle
-      sha256: db7306cf0249f838d1a24af52b5a5887c5bf7f31d8bb4e827d071dc0939ad346
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.6.2"
+    version: "3.7.3"
   process:
     dependency: transitive
     description:
       name: process
-      sha256: "53fd8db9cec1d37b0574e12f07520d582019cb6c44abf5479a01505099a34a09"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.2.4"
   pub_semver:
     dependency: transitive
     description:
       name: pub_semver
-      sha256: "307de764d305289ff24ad257ad5c5793ce56d04947599ad68b3baa124105fc17"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.3"
   pub_updater:
     dependency: transitive
     description:
       name: pub_updater
-      sha256: "42890302ab2672adf567dc2b20e55b4ecc29d7e19c63b6b98143ab68dd717d3a"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.2.4"
   quiver:
     dependency: transitive
     description:
       name: quiver
-      sha256: b1c1ac5ce6688d77f65f3375a9abb9319b3cb32486bdc7a1e0fdf004d7ba4e47
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.2.1"
   sky_engine:
@@ -396,97 +368,100 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.1"
+    version: "1.9.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.11.0"
+    version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.1.1"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.1"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      sha256: ad540f65f92caa91bf21dfc8ffb8c589d6e4dc0c2267818b4cc2792857706206
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.16"
+    version: "0.4.12"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      sha256: "26f87ade979c47a150c9eaab93ccd2bebe70a27dc0b4b29517f2904f04eb11a5"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.1"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.4"
+    version: "2.1.2"
   watcher:
     dependency: transitive
     description:
       name: watcher
-      sha256: "6a7f46926b01ce81bfc339da6a7f20afbe7733eff9846f6d6a5466aa4c6667c0"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.2"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.7.0"
   xml:
     dependency: transitive
     description:
       name: xml
-      sha256: "979ee37d622dec6365e2efa4d906c37470995871fe9ae080d967e192d88286b5"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.2.2"
+    version: "6.1.0"
   xterm:
     dependency: "direct main"
     description:
       path: ".."
       relative: true
     source: path
-    version: "3.4.0"
+    version: "3.5.0"
   yaml:
     dependency: transitive
     description:
       name: yaml
-      sha256: "23812a9b125b48d4007117254bca50abb6c712352927eece9e155207b1db2370"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.1"
+  zmodem:
+    dependency: transitive
+    description:
+      name: zmodem
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.4"
 sdks:
-  dart: ">=2.18.5 <3.0.0"
-  flutter: ">=3.7.0"
+  dart: ">=2.18.0 <3.0.0"
+  flutter: ">=3.0.0"

example/pubspec.yaml

@@ -28,8 +28,6 @@ dependencies:
 
   flutter_pty: ^0.3.0
 
-  flutter_acrylic: ^1.0.0+2
-
   flutter:
     sdk: flutter
 
@@ -37,10 +35,14 @@ dependencies:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^0.1.3
+  # cupertino_icons: ^0.1.3
 
   after_layout: ^1.1.0
 
+  file_picker: ^5.0.1
+
+  path: ^1.8.2
+
 dev_dependencies:
   flutter_test:
     sdk: flutter

example/test/widget_test.dart

@@ -0,0 +1,30 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility in the flutter_test package. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:example/main.dart';
+
+void main() {
+  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
+    // // Build our app and trigger a frame.
+    // await tester.pumpWidget(const MyApp());
+
+    // // Verify that our counter starts at 0.
+    // expect(find.text('0'), findsOneWidget);
+    // expect(find.text('1'), findsNothing);
+
+    // // Tap the '+' icon and trigger a frame.
+    // await tester.tap(find.byIcon(Icons.add));
+    // await tester.pump();
+
+    // // Verify that our counter has incremented.
+    // expect(find.text('0'), findsNothing);
+    // expect(find.text('1'), findsOneWidget);
+  });
+}

lib/xterm.dart

@@ -1,2 +1,3 @@
 export 'core.dart';
 export 'ui.dart';
+export 'zmodem.dart';

lib/zmodem.dart

@@ -0,0 +1,320 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:typed_data';
+
+import 'package:zmodem/zmodem.dart';
+
+export 'package:zmodem/zmodem.dart' show ZModemFileInfo;
+
+typedef ZModemInputHandler = void Function(String output);
+
+typedef ZModemOfferHandler = void Function(ZModemOffer offer);
+
+typedef ZModemRequestHandler = Future<Iterable<ZModemOffer>> Function();
+
+abstract class ZModemOffer {
+  ZModemFileInfo get info;
+
+  Stream<Uint8List> accept(int offset);
+
+  void skip();
+}
+
+class ZModemCallbackOffer implements ZModemOffer {
+  @override
+  final ZModemFileInfo info;
+
+  final Stream<Uint8List> Function(int offset) onAccept;
+
+  final void Function()? onSkip;
+
+  ZModemCallbackOffer(this.info, {required this.onAccept, this.onSkip});
+
+  @override
+  Stream<Uint8List> accept(int offset) {
+    return onAccept(offset);
+  }
+
+  @override
+  void skip() {
+    onSkip?.call();
+  }
+}
+
+final _zmodemSenderInit = '**\x18B0000000'.codeUnits;
+
+final _zmodemReceiverInit = '**\x18B0100000'.codeUnits;
+
+class ZModemMux {
+  /// Data from the underlying data channel.
+  final Stream<Uint8List> stdout;
+
+  /// The sink to write data to the underlying data channel.
+  final StreamSink stdin;
+
+  /// The callback to receive data that should be written to the terminal.
+  ZModemInputHandler? onTerminalInput;
+
+  /// The callback to handle file receiving. If not set, all offers will be
+  /// skipped.
+  ZModemOfferHandler? onFileOffer;
+
+  /// The callback to handle file sending. If not set, all requests will be
+  /// ignored.
+  ZModemRequestHandler? onFileRequest;
+
+  ZModemMux({required this.stdin, required this.stdout}) {
+    _stdoutSubscription = stdout.listen(_handleStdout);
+  }
+
+  /// Subscriptions to [stdout]. Used to pause/resume the stream when no more
+  /// space is available in local buffers.
+  late final StreamSubscription<Uint8List> _stdoutSubscription;
+
+  late final _terminalInputSink = StreamController<List<int>>(
+      // onPause: _stdoutSubscription.pause,
+      // onResume: _stdoutSubscription.resume,
+      )
+    ..stream
+        .transform(Utf8Decoder(allowMalformed: true))
+        .listen(onTerminalInput);
+
+  /// Current ZModem session. If null, no session is active.
+  ZModemCore? _session;
+
+  /// The sink to write data when receiving a file. If null, no file is being
+  /// received.
+  StreamController<Uint8List>? _receiveSink;
+
+  /// Offers to send to the remote peer. If null, no offers are being sent.
+  Iterator<ZModemOffer>? _fileOffers;
+
+  /// Writes terminal output to the underlying connection. [input] may be
+  /// buffered if a ZModem session is active.
+  void terminalWrite(String input) {
+    if (_session == null) {
+      print('-->t: ${input}');
+      stdin.add(utf8.encode(input) as Uint8List);
+    }
+  }
+
+  /// This is the entry point of multiplexing, dispatching data to ZModem or
+  /// terminal depending on the current state.
+  void _handleStdout(Uint8List chunk) {
+    print('<--: ${chunk.dump()}');
+
+    if (_session != null) {
+      _handleZModem(chunk);
+      return;
+    }
+
+    if (_detectZModem(chunk)) {
+      return;
+    }
+
+    _terminalInputSink.add(chunk);
+  }
+
+  /// Detects a ZModem session in [chunk] and starts it if found. Returns true
+  /// if a session was started.
+  bool _detectZModem(Uint8List chunk) {
+    final index = chunk.listIndexOf(_zmodemSenderInit) ??
+        chunk.listIndexOf(_zmodemReceiverInit);
+
+    if (index != null) {
+      _terminalInputSink.add(Uint8List.sublistView(chunk, 0, index));
+
+      _session = ZModemCore(
+        onTrace: print,
+        onPlainText: (text) {
+          _terminalInputSink.add([text]);
+        },
+      );
+
+      _handleZModem(Uint8List.sublistView(chunk, index));
+      return true;
+    }
+
+    return false;
+  }
+
+  void _handleZModem(Uint8List chunk) {
+    print('_handleZModem');
+    // print('bytes: ${chunk.map((e) => e.toRadixString(16)).toList()}');
+
+    for (final event in _session!.receive(chunk)) {
+      print('event: $event');
+
+      /// remote is sz
+      if (event is ZFileOfferedEvent) {
+        _handleZFileOfferedEvent(event);
+      } else if (event is ZFileDataEvent) {
+        _handleZFileDataEvent(event);
+      } else if (event is ZFileEndEvent) {
+        _handleZFileEndEvent(event);
+      } else if (event is ZSessionFinishedEvent) {
+        _handleZSessionFinishedEvent(event);
+      }
+
+      /// remote is rz
+      else if (event is ZReadyToSendEvent) {
+        _handleFileRequestEvent(event);
+      } else if (event is ZFileAcceptedEvent) {
+        _handleFileAcceptedEvent(event);
+      } else if (event is ZFileSkippedEvent) {
+        _handleFileSkippedEvent(event);
+      }
+    }
+
+    _flush();
+  }
+
+  void _handleZFileOfferedEvent(ZFileOfferedEvent event) {
+    final onFileOffer = this.onFileOffer;
+
+    if (onFileOffer == null) {
+      _session!.skipFile();
+      _flush();
+      return;
+    }
+
+    onFileOffer(_createRemoteOffer(event.fileInfo));
+  }
+
+  void _handleZFileDataEvent(ZFileDataEvent event) {
+    _receiveSink!.add(event.data as Uint8List);
+  }
+
+  void _handleZFileEndEvent(ZFileEndEvent event) async {
+    await _closeReceiveSink();
+  }
+
+  void _handleZSessionFinishedEvent(ZSessionFinishedEvent event) async {
+    await _reset();
+  }
+
+  void _handleFileRequestEvent(ZReadyToSendEvent event) async {
+    _fileOffers ??= (await onFileRequest?.call())?.iterator;
+
+    _moveToNextOffer();
+  }
+
+  void _handleFileAcceptedEvent(ZFileAcceptedEvent event) async {
+    final data = _fileOffers!.current.accept(event.offset);
+    var bytesSent = 0;
+
+    final subscription = data.listen(
+      (chunk) {
+        bytesSent += chunk.length;
+        print('bytesSent: $bytesSent');
+        _session!.sendFileData(chunk);
+        _flush();
+      },
+      onDone: () {
+        print('bytesSent fin: $bytesSent');
+        _session!.finishSending(event.offset + bytesSent);
+        _flush();
+      },
+    );
+  }
+
+  void _handleFileSkippedEvent(ZFileSkippedEvent event) {
+    _fileOffers!.current.skip();
+    _moveToNextOffer();
+  }
+
+  /// Sends next file offer if available, or closes the session if not.
+  void _moveToNextOffer() {
+    print('_offerNextFileIfNeeded');
+
+    if (_fileOffers?.moveNext() != true) {
+      print('no more files');
+      _closeSession();
+      return;
+    }
+
+    _session!.offerFile(_fileOffers!.current.info);
+    _flush();
+  }
+
+  /// Creates a [ZModemOffer] ƒrom the info from remote peer that can be used
+  /// by local client to accept or skip the file.
+  ZModemOffer _createRemoteOffer(ZModemFileInfo fileInfo) {
+    return ZModemCallbackOffer(
+      fileInfo,
+      onAccept: (offset) {
+        _session!.acceptFile(offset);
+        _flush();
+
+        _createReceiveSink();
+        return _receiveSink!.stream;
+      },
+      onSkip: () {
+        _session!.skipFile();
+        _flush();
+      },
+    );
+  }
+
+  void _createReceiveSink() {
+    _receiveSink = StreamController<Uint8List>(
+      // onPause: _stdoutSubscription.pause,
+      onResume: _stdoutSubscription.resume,
+    );
+  }
+
+  Future<void> _closeReceiveSink() async {
+    await _receiveSink?.close();
+    _receiveSink = null;
+  }
+
+  /// Requests remote to close the session.
+  Future<void> _closeSession() async {
+    _session!.finishSession();
+    _flush();
+  }
+
+  /// Clears all ZModem state.
+  Future<void> _reset() async {
+    await _closeReceiveSink();
+    _fileOffers = null;
+    _session = null;
+  }
+
+  /// Sends all pending data packets to the remote. No data is automatically
+  /// sent to the remote without calling this method.
+  void _flush() {
+    final dataToSend = _session!.dataToSend();
+    if (dataToSend.isNotEmpty) {
+      // print('-->: ${dataToSend.dump()}');
+      stdin.add(dataToSend);
+    }
+  }
+}
+
+extension on List<int> {
+  String dump() {
+    return map((e) => e.toRadixString(16).padLeft(2, '0')).join(' ');
+  }
+
+  int? listIndexOf(List<int> other, [int start = 0]) {
+    if (other.length + start > length) {
+      return null;
+    }
+    for (var i = start; i < length - other.length; i++) {
+      if (this[i] == other[0]) {
+        var found = true;
+        for (var j = 1; j < other.length; j++) {
+          if (this[i + j] != other[j]) {
+            found = false;
+            break;
+          }
+        }
+        if (found) {
+          return i;
+        }
+      }
+    }
+    return null;
+  }
+}

pubspec.lock

@@ -5,240 +5,224 @@ packages:
     dependency: transitive
     description:
       name: _fe_analyzer_shared
-      sha256: d976d24314f193899a3079b14fe336215a63a3b1e1c3743eabba8f83e049e9a9
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "49.0.0"
+    version: "47.0.0"
   analyzer:
     dependency: transitive
     description:
       name: analyzer
-      sha256: "40ba2c6d2ab41a66476f8f1f099da6be0795c1b47221f5e2c5f8ad6048cdffae"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.1.0"
+    version: "4.7.0"
   analyzer_plugin:
     dependency: transitive
     description:
       name: analyzer_plugin
-      sha256: c1d5f167683de03d5ab6c3b53fc9aeefc5d59476e7810ba7bbddff50c6f4392d
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.11.2"
+    version: "0.10.0"
   ansicolor:
     dependency: transitive
     description:
       name: ansicolor
-      sha256: "607f8fa9786f392043f169898923e6c59b4518242b68b8862eb8a8b7d9c30b4a"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   args:
     dependency: transitive
     description:
       name: args
-      sha256: "139d809800a412ebb26a3892da228b2d0ba36f0ef5d9a82166e5e52ec8d61611"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.3.2"
+    version: "2.4.0"
   async:
     dependency: transitive
     description:
       name: async
-      sha256: bfe67ef28df125b7dddcea62755991f807aa39a2492a23e1550161692950bbe0
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.10.0"
+    version: "2.9.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
-      sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.0"
   build:
     dependency: transitive
     description:
       name: build
-      sha256: "3fbda25365741f8251b39f3917fb3c8e286a96fd068a5a242e11c2012d495777"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.3.1"
   build_config:
     dependency: transitive
     description:
       name: build_config
-      sha256: bf80fcfb46a29945b423bd9aad884590fb1dc69b330a4d4700cac476af1708d1
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
   build_daemon:
     dependency: transitive
     description:
       name: build_daemon
-      sha256: "6bc5544ea6ce4428266e7ea680e945c68806c4aae2da0eb5e9ccf38df8d6acbf"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.0"
+    version: "3.1.1"
   build_resolvers:
     dependency: transitive
     description:
       name: build_resolvers
-      sha256: "687cf90a3951affac1bd5f9ecb5e3e90b60487f3d9cdc359bb310f8876bb02a6"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.10"
   build_runner:
     dependency: "direct dev"
     description:
       name: build_runner
-      sha256: b0a8a7b8a76c493e85f1b84bffa0588859a06197863dba8c9036b15581fd9727
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.3.3"
+    version: "2.3.0"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
-      sha256: "14febe0f5bac5ae474117a36099b4de6f1dbc52df6c5e55534b3da9591bf4292"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "7.2.7"
   built_collection:
     dependency: transitive
     description:
       name: built_collection
-      sha256: "376e3dd27b51ea877c28d525560790aee2e6fbb5f20e2f85d5081027d94e2100"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.1.1"
   built_value:
     dependency: transitive
     description:
       name: built_value
-      sha256: "169565c8ad06adb760c3645bf71f00bff161b00002cace266cad42c5d22a7725"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "8.4.3"
+    version: "8.4.4"
   characters:
     dependency: transitive
     description:
       name: characters
-      sha256: e6a326c8af69605aec75ed6c187d06b349707a27fbff8222ca9cc2cff167975c
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.1"
   checked_yaml:
     dependency: transitive
     description:
       name: checked_yaml
-      sha256: "3d1505d91afa809d177efd4eed5bb0eb65805097a1463abdd2add076effae311"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   clock:
     dependency: transitive
     description:
       name: clock
-      sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
   code_builder:
     dependency: transitive
     description:
       name: code_builder
-      sha256: "0d43dd1288fd145de1ecc9a3948ad4a6d5a82f0a14c4fdd0892260787d975cbe"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.4.0"
   collection:
     dependency: transitive
     description:
       name: collection
-      sha256: cfc915e6923fe5ce6e153b0723c753045de46de1b4d63771530504004a45fae0
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.17.0"
+    version: "1.16.0"
   convert:
     dependency: "direct main"
     description:
       name: convert
-      sha256: "0f08b14755d163f6e2134cb58222dd25ea2a2ee8a195e53983d57c075324d592"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.1"
   coverage:
     dependency: transitive
     description:
       name: coverage
-      sha256: "961c4aebd27917269b1896382c7cb1b1ba81629ba669ba09c27a7e5710ec9040"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.2"
+    version: "1.6.3"
   crypto:
     dependency: transitive
     description:
       name: crypto
-      sha256: aa274aa7774f8964e4f4f38cc994db7b6158dd36e9187aaceaddc994b35c6c67
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.2"
   csslib:
     dependency: transitive
     description:
       name: csslib
-      sha256: b36c7f7e24c0bdf1bf9a3da461c837d1de64b9f8beb190c9011d8c72a3dfd745
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.17.2"
   dart_code_metrics:
     dependency: "direct dev"
     description:
       name: dart_code_metrics
-      sha256: "219607f5abbf4c0d254ca39ee009f9ff28df91c40aef26718fde15af6b7a6c24"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.19.2"
+  dart_console:
+    dependency: transitive
+    description:
+      name: dart_console
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.21.3"
+    version: "1.1.2"
   dart_style:
     dependency: transitive
     description:
       name: dart_style
-      sha256: "7a03456c3490394c8e7665890333e91ae8a49be43542b616e414449ac358acd4"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.2.4"
   equatable:
     dependency: "direct main"
     description:
       name: equatable
-      sha256: c2b87cb7756efdf69892005af546c56c0b5037f54d2a88269b4f347a505e3ca2
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.5"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.1"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
   file:
     dependency: transitive
     description:
       name: file
-      sha256: "1b92bec4fc2a72f59a8e15af5f52cd441e4a7860b49499d69dfa817af20e925d"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "6.1.4"
   fixnum:
     dependency: transitive
     description:
       name: fixnum
-      sha256: "04be3e934c52e082558cc9ee21f42f5c1cd7a1262f4c63cd0357c08d5bba81ec"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
   flutter:
@@ -255,264 +239,210 @@ packages:
     dependency: transitive
     description:
       name: frontend_server_client
-      sha256: "408e3ca148b31c20282ad6f37ebfa6f4bdc8fede5b74bc2f08d9d92b55db3612"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.2.0"
+    version: "2.1.3"
   glob:
     dependency: transitive
     description:
       name: glob
-      sha256: "4515b5b6ddb505ebdd242a5f2cc5d22d3d6a80013789debfbda7777f47ea308c"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
   graphs:
     dependency: transitive
     description:
       name: graphs
-      sha256: f9e130f3259f52d26f0cfc0e964513796dafed572fa52e45d2f8d6ca14db39b2
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.2.0"
   html:
     dependency: transitive
     description:
       name: html
-      sha256: d9793e10dbe0e6c364f4c59bf3e01fb33a9b2a674bc7a1081693dba0614b6269
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.15.1"
-  http:
-    dependency: transitive
-    description:
-      name: http
-      sha256: "6aa2946395183537c8b880962d935877325d6a09a2867c3970c05c0fed6ac482"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.13.5"
+    version: "0.15.2"
   http_multi_server:
     dependency: transitive
     description:
       name: http_multi_server
-      sha256: "97486f20f9c2f7be8f514851703d0119c3596d14ea63227af6f7a481ef2b2f8b"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.2.1"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
-      sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.2"
+  intl:
+    dependency: transitive
+    description:
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.17.0"
   io:
     dependency: transitive
     description:
       name: io
-      sha256: "2ec25704aba361659e10e3e5f5d672068d332fc8ac516421d483a11e5cbd061e"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.4"
   js:
     dependency: transitive
     description:
       name: js
-      sha256: "5528c2f391ededb7775ec1daa69e65a2d61276f7552de2b5f7b8d34ee9fd4ab7"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.5"
   json_annotation:
     dependency: transitive
     description:
       name: json_annotation
-      sha256: c33da08e136c3df0190bd5bbe51ae1df4a7d96e7954d1d7249fea2968a72d317
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.8.0"
   lints:
     dependency: "direct dev"
     description:
       name: lints
-      sha256: "5e4a9cd06d447758280a8ac2405101e0e2094d2a1dbdd3756aec3fe7775ba593"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   logging:
     dependency: transitive
     description:
       name: logging
-      sha256: "04094f2eb032cbb06c6f6e8d3607edcfcb0455e2bb6cbc010cb01171dcb64e6d"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
   matcher:
     dependency: transitive
     description:
       name: matcher
-      sha256: "16db949ceee371e9b99d22f88fa3a73c4e59fd0afed0bd25fc336eb76c198b72"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.13"
+    version: "0.12.12"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.0"
+    version: "0.1.5"
   meta:
     dependency: "direct main"
     description:
       name: meta
-      sha256: "6c268b42ed578a53088d834796959e4a1814b5e9e164f147f580a386e5decf42"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
   mime:
     dependency: transitive
     description:
       name: mime
-      sha256: e4ff8e8564c03f255408decd16e7899da1733852a9110a58fe6d1b817684a63e
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.4"
   mockito:
     dependency: "direct dev"
     description:
       name: mockito
-      sha256: "2a8a17b82b1bde04d514e75d90d634a0ac23f6cb4991f6098009dd56836aeafe"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.3.2"
   node_preamble:
     dependency: transitive
     description:
       name: node_preamble
-      sha256: "8ebdbaa3b96d5285d068f80772390d27c21e1fa10fb2df6627b1b9415043608d"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.1"
+    version: "2.0.2"
   package_config:
     dependency: transitive
     description:
       name: package_config
-      sha256: "1c5b77ccc91e4823a5af61ee74e6b972db1ef98c2ff5a18d3161c982a55448bd"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   path:
     dependency: transitive
     description:
       name: path
-      sha256: db9d4f58c908a4ba5953fcee2ae317c94889433e5024c27ce74a37f94267945b
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.2"
   petitparser:
     dependency: transitive
     description:
       name: petitparser
-      sha256: "49392a45ced973e8d94a85fdb21293fbb40ba805fc49f2965101ae748a3683b4"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.1.0"
-  platform:
-    dependency: transitive
-    description:
-      name: platform
-      sha256: "4a451831508d7d6ca779f7ac6e212b4023dd5a7d08a27a63da33756410e32b76"
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.1.0"
   platform_info:
     dependency: "direct main"
     description:
       name: platform_info
-      sha256: "012e73712166cf0b56d3eb95c0d33491f56b428c169eca385f036448474147e4"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.2.0"
   pool:
     dependency: transitive
     description:
       name: pool
-      sha256: "20fe868b6314b322ea036ba325e6fc0711a22948856475e2c2b6306e8ab39c2a"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.5.1"
-  process:
-    dependency: transitive
-    description:
-      name: process
-      sha256: "53fd8db9cec1d37b0574e12f07520d582019cb6c44abf5479a01505099a34a09"
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.2.4"
   pub_semver:
     dependency: transitive
     description:
       name: pub_semver
-      sha256: "307de764d305289ff24ad257ad5c5793ce56d04947599ad68b3baa124105fc17"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.3"
-  pub_updater:
-    dependency: transitive
-    description:
-      name: pub_updater
-      sha256: "42890302ab2672adf567dc2b20e55b4ecc29d7e19c63b6b98143ab68dd717d3a"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.2.4"
   pubspec_parse:
     dependency: transitive
     description:
       name: pubspec_parse
-      sha256: "75f6614d6dde2dc68948dffbaa4fe5dae32cd700eb9fb763fe11dfb45a3c4d0a"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.1"
+    version: "1.2.2"
   quiver:
     dependency: "direct main"
     description:
       name: quiver
-      sha256: b1c1ac5ce6688d77f65f3375a9abb9319b3cb32486bdc7a1e0fdf004d7ba4e47
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.2.1"
   shelf:
     dependency: transitive
     description:
       name: shelf
-      sha256: c24a96135a2ccd62c64b69315a14adc5c3419df63b4d7c05832a346fdb73682c
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.4.0"
   shelf_packages_handler:
     dependency: transitive
     description:
       name: shelf_packages_handler
-      sha256: aef74dc9195746a384843102142ab65b6a4735bb3beea791e63527b88cc83306
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   shelf_static:
     dependency: transitive
     description:
       name: shelf_static
-      sha256: e792b76b96a36d4a41b819da593aff4bdd413576b3ba6150df5d8d9996d2e74c
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
   shelf_web_socket:
     dependency: transitive
     description:
       name: shelf_web_socket
-      sha256: a988c0e8d8ffbdb8a28aa7ec8e449c260f3deb808781fe1284d22c5bba7156e8
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.3"
   sky_engine:
@@ -524,170 +454,163 @@ packages:
     dependency: transitive
     description:
       name: source_gen
-      sha256: "2d79738b6bbf38a43920e2b8d189e9a3ce6cc201f4b8fc76be5e4fe377b1c38d"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.6"
   source_map_stack_trace:
     dependency: transitive
     description:
       name: source_map_stack_trace
-      sha256: "84cf769ad83aa6bb61e0aa5a18e53aea683395f196a6f39c4c881fb90ed4f7ae"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
   source_maps:
     dependency: transitive
     description:
       name: source_maps
-      sha256: "490098075234dcedb83c5d949b4c93dad5e6b7702748de000be2b57b8e6b2427"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.10.11"
+    version: "0.10.12"
   source_span:
     dependency: transitive
     description:
       name: source_span
-      sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.1"
+    version: "1.9.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.11.0"
+    version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.0"
   stream_transform:
     dependency: transitive
     description:
       name: stream_transform
-      sha256: "14a00e794c7c11aa145a170587321aedce29769c08d7f58b1d141da75e3b1c6f"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.1.1"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.1"
   test:
     dependency: "direct dev"
     description:
       name: test
-      sha256: a5fcd2d25eeadbb6589e80198a47d6a464ba3e2049da473943b8af9797900c2d
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.22.0"
+    version: "1.21.4"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      sha256: ad540f65f92caa91bf21dfc8ffb8c589d6e4dc0c2267818b4cc2792857706206
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.16"
+    version: "0.4.12"
   test_core:
     dependency: transitive
     description:
       name: test_core
-      sha256: "0ef9755ec6d746951ba0aabe62f874b707690b5ede0fecc818b138fcc9b14888"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.20"
+    version: "0.4.16"
   timing:
     dependency: transitive
     description:
       name: timing
-      sha256: "70a3b636575d4163c477e6de42f247a23b315ae20e86442bebe32d3cabf61c32"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      sha256: "26f87ade979c47a150c9eaab93ccd2bebe70a27dc0b4b29517f2904f04eb11a5"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.1"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.4"
+    version: "2.1.2"
   vm_service:
     dependency: transitive
     description:
       name: vm_service
-      sha256: e7fb6c2282f7631712b69c19d1bff82f3767eea33a2321c14fa59ad67ea391c7
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "9.4.0"
   watcher:
     dependency: transitive
     description:
       name: watcher
-      sha256: "6a7f46926b01ce81bfc339da6a7f20afbe7733eff9846f6d6a5466aa4c6667c0"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.2"
   web_socket_channel:
     dependency: transitive
     description:
       name: web_socket_channel
-      sha256: ca49c0bc209c687b887f30527fb6a9d80040b072cc2990f34b9bec3e7663101b
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.3.0"
+    version: "2.4.0"
   webkit_inspection_protocol:
     dependency: transitive
     description:
       name: webkit_inspection_protocol
-      sha256: "67d3a8b6c79e1987d19d848b0892e582dbb0c66c57cc1fef58a177dd2aa2823d"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.7.0"
   xml:
     dependency: transitive
     description:
       name: xml
-      sha256: "979ee37d622dec6365e2efa4d906c37470995871fe9ae080d967e192d88286b5"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.2.2"
+    version: "6.1.0"
   yaml:
     dependency: transitive
     description:
       name: yaml
-      sha256: "23812a9b125b48d4007117254bca50abb6c712352927eece9e155207b1db2370"
-      url: "https://pub.dev"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.1"
+  zmodem:
+    dependency: "direct main"
+    description:
+      name: zmodem
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.4"
 sdks:
-  dart: ">=2.18.0 <4.0.0"
+  dart: ">=2.18.0 <3.0.0"
   flutter: ">=3.0.0"

pubspec.yaml

@@ -15,6 +15,7 @@ dependencies:
   equatable: ^2.0.3
   flutter:
     sdk: flutter
+  zmodem: ^0.0.4
 
 dev_dependencies:
   flutter_test: