fix(core): Bump omemo_dart (and everything else)

Reviewed-on: https://codeberg.org/moxxy/moxxmpp/pulls/49

.gitignore

@@ -13,3 +13,6 @@ pubspec.lock
 
 # Omit pubspec override files generated by melos
 **/pubspec_overrides.yaml
+
+# Flake results
+result

.gitlint

@@ -0,0 +1,14 @@
+[general]
+ignore=B5,B6,B7,B8
+
+[title-max-length]
+line-length=72
+
+[title-trailing-punctuation]
+[title-hard-tab]
+[title-match-regex]
+regex=^((feat|fix|chore|refactor|docs|release|test)\((meta|tests|style|docs|xep|core|example|all|flake|ci)+(,(meta|tests|style|docs|xep|core|example|all|flake|ci))*\)|release): [A-Z0-9].*$
+
+
+[body-trailing-whitespace]
+[body-first-line-empty]

.woodpecker.yml

@@ -1,28 +1,49 @@
+when:
+  branch: master
+
 pipeline:
   # Check moxxmpp
   moxxmpp-lint:
-    image: dart:2.18.1
+    image: dart:3.0.7
     commands:
       - cd packages/moxxmpp
-      - dart pub get
+      # Proxy requests to pub.dev using pubcached
+      - PUB_HOSTED_URL=http://172.17.0.1:8000 dart pub get
       - dart analyze --fatal-infos --fatal-warnings
+
   moxxmpp-test:
-    image: dart:2.18.1
+    image: dart:3.0.7
     commands:
       - cd packages/moxxmpp
-      - dart pub get
+      # Proxy requests to pub.dev using pubcached
+      - PUB_HOSTED_URL=http://172.17.0.1:8000 dart pub get
       - dart test
 
   # Check moxxmpp_socket_tcp
   moxxmpp_socket_tcp-lint:
-    image: dart:2.18.1
+    image: dart:3.0.7
     commands:
       - cd packages/moxxmpp_socket_tcp
-      - dart pub get
+      # Proxy requests to pub.dev using pubcached
+      - PUB_HOSTED_URL=http://172.17.0.1:8000 dart pub get
       - dart analyze --fatal-infos --fatal-warnings
+
   # moxxmpp-test:
-  #   image: dart:2.18.1
+  #   image: dart:3.0.7
   #   commands:
   #     - cd packages/moxxmpp
-  #     - dart pub get
+  #     # Proxy requests to pub.dev using pubcached
+  #     - PUB_HOSTED_URL=http://172.17.0.1:8000 dart pub get
   #     - dart test
+
+  notify:
+    image: git.polynom.me/papatutuwawa/woodpecker-xmpp
+    settings:
+      xmpp_tls: 1
+      xmpp_is_muc: 1
+      xmpp_recipient: moxxy-build@muc.moxxy.org
+      xmpp_alias: 2Bot
+    secrets: [ xmpp_jid, xmpp_password, xmpp_server ]
+    when:
+      status:
+        - failure

CONTRIBUTING.md

@@ -0,0 +1,19 @@
+# Contribution Guide
+
+Thanks for your interest in the moxxmpp XMPP library! This document contains guidelines and guides for working on the moxxmpp codebase.
+
+## Contributing
+
+If you want to fix a small issue, you can just fork, create a new branch, and start working right away. However, if you want to work
+on a bigger feature, please first create an issue (if an issue does not already exist) or join the [development chat](xmpp:moxxy@muc.moxxy.org?join) (xmpp:moxxy@muc.moxxy.org?join)
+to discuss the feature first.
+
+Before creating a pull request, please make sure you checked every item on the following checklist:
+
+- [ ] I formatted the code with the dart formatter (`dart format`) before running the linter
+- [ ] I ran the linter (`dart analyze`) and introduced no new linter warnings
+- [ ] I ran the tests (`dart test`) and introduced no new failing tests
+- [ ] I used [gitlint](https://github.com/jorisroovers/gitlint) to ensure propper formatting of my commig messages
+
+If you think that your code is ready for a pull request, but you are not sure if it is ready, prefix the PR's title with "WIP: ", so that discussion
+can happen there. If you think your PR is ready for review, remove the "WIP: " prefix.

README.md

@@ -7,12 +7,18 @@ moxxmpp is a XMPP library written purely in Dart for usage in Moxxy.
 
 This package contains the actual XMPP code that is platform-independent.
 
+Documentation is available [here](https://docs.moxxy.org/moxxmpp/index.html).
+
 ### [moxxmpp_socket_tcp](./packages/moxxmpp_socket_tcp)
 
 `moxxmpp_socket_tcp` contains the implementation of the `BaseSocketWrapper` class that
 implements the RFC6120 connection algorithm and XEP-0368 direct TLS connections,
 if a DNS implementation is given, and supports StartTLS.
 
+### moxxmpp_color
+
+Implementation of [XEP-0392](https://xmpp.org/extensions/xep-0392.html).
+
 ## Development
 
 To begin, use [melos](https://github.com/invertase/melos) to bootstrap the project: `melos bootstrap`. Then, the example
@@ -22,6 +28,15 @@ To run the example, make sure that Flutter is correctly set up and working. If y
 the development shell provided by the NixOS Flake, ensure that `ANDROID_HOME` and
 `ANDROID_AVD_HOME` are pointing to the correct directories.
 
+## Examples
+
+This repository contains 2 types of examples:
+
+- `example_flutter`: An example of using moxxmpp using Flutter
+- `examples_dart`: A collection of pure Dart examples for showing different aspects of moxxmpp
+
+For more information, see the respective README files.
+
 ## License
 
 See `./LICENSE`.

analysis_options.yaml

@@ -11,5 +11,3 @@ analyzer:
   exclude:
     - "**/*.g.dart"
     - "**/*.freezed.dart"
-    - "test/"
-    - "integration_test/"

example/pubspec_overrides.yaml

@@ -1,6 +0,0 @@
-# melos_managed_dependency_overrides: moxxmpp,moxxmpp_socket_tcp
-dependency_overrides:
-  moxxmpp: 
-    path: ../packages/moxxmpp
-  moxxmpp_socket_tcp:
-    path: ../packages/moxxmpp_socket_tcp

example_flutter/lib/main.dart

@@ -5,18 +5,20 @@ import 'package:moxxmpp/moxxmpp.dart';
 import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
 
 class ExampleTcpSocketWrapper extends TCPSocketWrapper {
-  ExampleTcpSocketWrapper() : super(false);
+  ExampleTcpSocketWrapper() : super();
 
   @override
   Future<List<MoxSrvRecord>> srvQuery(String domain, bool dnssec) async {
     final records = await MoxdnsPlugin.srvQuery(domain, false);
     return records
-      .map((record) => MoxSrvRecord(
+        .map(
+          (record) => MoxSrvRecord(
             record.priority,
             record.weight,
             record.target,
             record.port,
-      ),)
+          ),
+        )
         .toList();
   }
 }
@@ -24,6 +26,7 @@ class ExampleTcpSocketWrapper extends TCPSocketWrapper {
 void main() {
   Logger.root.level = Level.ALL;
   Logger.root.onRecord.listen((record) {
+    // ignore: avoid_print
     print('${record.level.name}: ${record.time}: ${record.message}');
   });
 
@@ -54,22 +57,32 @@ class MyHomePage extends StatefulWidget {
 }
 
 class _MyHomePageState extends State<MyHomePage> {
+  final logger = Logger('MyHomePage');
   final XmppConnection connection = XmppConnection(
-    ExponentialBackoffReconnectionPolicy(),
-    ExampleTcpSocketWrapper(),
+    RandomBackoffReconnectionPolicy(1, 60),
+    AlwaysConnectedConnectivityManager(),
+    ClientToServerNegotiator(),
+    // The below causes the app to crash.
+    //ExampleTcpSocketWrapper(),
+    // In a production app, the below should be false.
+    TCPSocketWrapper(),
   );
   TextEditingController jidController = TextEditingController();
   TextEditingController passwordController = TextEditingController();
+  bool connected = false;
+  bool loading = false;
 
   _MyHomePageState() : super() {
     connection
       ..registerManagers([
         StreamManagementManager(),
-        DiscoManager(),
-        RosterManager(),
-        PingManager(),
+        DiscoManager([]),
+        RosterManager(TestingRosterStateManager("", [])),
+        PingManager(
+          const Duration(minutes: 3),
+        ),
         MessageManager(),
-        PresenceManager('http://moxxmpp.example'),
+        PresenceManager(),
       ])
       ..registerFeatureNegotiators([
         ResourceBindingNegotiator(),
@@ -85,15 +98,37 @@ class _MyHomePageState extends State<MyHomePage> {
   }
 
   Future<void> _buttonPressed() async {
-    connection.setConnectionSettings(
-      ConnectionSettings(
+    if (connected) {
+      await connection.disconnect();
+      setState(() {
+        connected = false;
+      });
+      return;
+    }
+    setState(() {
+      loading = true;
+    });
+    connection.connectionSettings = ConnectionSettings(
       jid: JID.fromString(jidController.text),
       password: passwordController.text,
-        useDirectTLS: true,
-        allowPlainAuth: false,
+    );
+    final result = await connection.connect(waitUntilLogin: true);
+    setState(() {
+      connected = result.isType<bool>() && result.get<bool>();
+      loading = false;
+    });
+    if (result.isType<XmppError>()) {
+      logger.severe(result.get<XmppError>());
+      if (context.mounted) {
+        showDialog(
+          context: context,
+          builder: (_) => AlertDialog(
+            title: const Text('Error'),
+            content: Text(result.get<XmppError>().toString()),
           ),
         );
-    await connection.connect();
+      }
+    }
   }
 
   @override
@@ -101,20 +136,24 @@ class _MyHomePageState extends State<MyHomePage> {
     return Scaffold(
       appBar: AppBar(
         title: Text(widget.title),
+        backgroundColor: connected ? Colors.green : Colors.deepPurple[800],
+        foregroundColor: connected ? Colors.black : Colors.white,
       ),
       body: Center(
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: <Widget>[
             TextField(
+              enabled: !loading,
               controller: jidController,
-              decoration: InputDecoration(
+              decoration: const InputDecoration(
                 labelText: 'JID',
               ),
             ),
             TextField(
+              enabled: !loading,
               controller: passwordController,
-              decoration: InputDecoration(
+              decoration: const InputDecoration(
                 labelText: 'Password',
               ),
               obscureText: true,
@@ -122,10 +161,13 @@ class _MyHomePageState extends State<MyHomePage> {
           ],
         ),
       ),
-      floatingActionButton: FloatingActionButton(
+      floatingActionButton: FloatingActionButton.extended(
         onPressed: _buttonPressed,
+        label: Text(connected ? 'Disconnect' : 'Connect'),
+        backgroundColor: Colors.blue,
+        foregroundColor: Colors.white,
         tooltip: 'Connect',
-        child: const Icon(Icons.add),
+        icon: const Icon(Icons.power),
       ),
     );
   }

example_flutter/pubspec.yaml

@@ -16,10 +16,10 @@ dependencies:
     version: 0.1.4+1
   moxxmpp:
     hosted: https://git.polynom.me/api/packages/Moxxy/pub
-    version: 0.1.6+1
+    version: 0.3.1
   moxxmpp_socket_tcp:
     hosted: https://git.polynom.me/api/packages/Moxxy/pub
-    version: 0.1.2+9
+    version: 0.3.1
 
 dev_dependencies:
   flutter_test:

examples_dart/.gitignore

@@ -0,0 +1,6 @@
+# Files and directories created by pub.
+.dart_tool/
+.packages
+
+# Conventional directory for build output.
+build/

examples_dart/README.md

@@ -0,0 +1,7 @@
+# Dart Examples
+
+Run using `dart run bin/<example>.dart`.
+
+## Examples
+
+- `component.dart`: Use moxxmpp to implement a component using XEP-0114.

examples_dart/analysis_options.yaml

@@ -0,0 +1,30 @@
+# This file configures the static analysis results for your project (errors,
+# warnings, and lints).
+#
+# This enables the 'recommended' set of lints from `package:lints`.
+# This set helps identify many issues that may lead to problems when running
+# or consuming Dart code, and enforces writing Dart using a single, idiomatic
+# style and format.
+#
+# If you want a smaller set of lints you can change this to specify
+# 'package:lints/core.yaml'. These are just the most critical lints
+# (the recommended set includes the core lints).
+# The core lints are also what is used by pub.dev for scoring packages.
+
+include: package:lints/recommended.yaml
+
+# Uncomment the following section to specify additional rules.
+
+# linter:
+#   rules:
+#     - camel_case_types
+
+# analyzer:
+#   exclude:
+#     - path/to/excluded/files/**
+
+# For more information about the core and recommended set of lints, see
+# https://dart.dev/go/core-lints
+
+# For additional information about configuring this file, see
+# https://dart.dev/guides/language/analysis-options

examples_dart/bin/component.dart

@@ -0,0 +1,94 @@
+import 'package:logging/logging.dart';
+import 'package:moxxmpp/moxxmpp.dart';
+import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
+
+class TestingTCPSocketWrapper extends TCPSocketWrapper {
+  TestingTCPSocketWrapper() : super(true);
+
+  @override
+  bool onBadCertificate(dynamic certificate, String domain) {
+    return true;
+  }
+}
+
+class EchoMessageManager extends XmppManagerBase {
+  EchoMessageManager() : super('org.moxxy.example.message');
+
+  @override
+  Future<bool> isSupported() async => true;
+
+  @override
+  List<StanzaHandler> getIncomingStanzaHandlers() => [
+        StanzaHandler(
+          stanzaTag: 'message',
+          callback: _onMessage,
+          priority: -100,
+          xmlns: null,
+        )
+      ];
+
+  Future<StanzaHandlerData> _onMessage(
+    Stanza stanza,
+    StanzaHandlerData state,
+  ) async {
+    final body = stanza.firstTag('body');
+    if (body == null) return state..done = true;
+
+    final bodyText = body.innerText();
+
+    await getAttributes().sendStanza(
+      StanzaDetails(
+        Stanza.message(
+          to: stanza.from,
+          children: [
+            XMLNode(
+              tag: 'body',
+              text: 'Hello, ${stanza.from}! You said "$bodyText"',
+            ),
+          ],
+        ),
+        awaitable: false,
+      ),
+    );
+
+    return state..done = true;
+  }
+}
+
+void main(List<String> arguments) async {
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.listen((record) {
+    // ignore: avoid_print
+    print(
+      '[${record.level.name}] (${record.loggerName}) ${record.time}: ${record.message}',
+    );
+  });
+
+  final conn = XmppConnection(
+    TestingReconnectionPolicy(),
+    AlwaysConnectedConnectivityManager(),
+    ComponentToServerNegotiator(),
+    TestingTCPSocketWrapper(),
+  )..connectionSettings = ConnectionSettings(
+      jid: JID.fromString('component.localhost'),
+      password: 'abc123',
+      host: '127.0.0.1',
+      port: 8888,
+    );
+  await conn.registerManagers([
+    EchoMessageManager(),
+  ]);
+
+  final result = await conn.connect(
+    waitUntilLogin: true,
+    shouldReconnect: false,
+    enableReconnectOnSuccess: false,
+  );
+  if (result.isType<XmppError>()) {
+    print('Failed to connect as component');
+    return;
+  }
+
+  // Just block for some time to test the connection
+  await Future<void>.delayed(const Duration(seconds: 9999));
+}

examples_dart/bin/muc_client.dart

@@ -0,0 +1,111 @@
+import 'package:cli_repl/cli_repl.dart';
+import 'package:example_dart/arguments.dart';
+import 'package:example_dart/socket.dart';
+import 'package:logging/logging.dart';
+import 'package:moxxmpp/moxxmpp.dart';
+
+void main(List<String> args) async {
+  // Set up logging
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.listen((record) {
+    // ignore: avoid_print
+    print(
+      '[${record.level.name}] (${record.loggerName}) ${record.time}: ${record.message}',
+    );
+  });
+
+  final parser = ArgumentParser()
+    ..parser.addOption('muc', help: 'The MUC to send messages to')
+    ..parser.addOption('nick', help: 'The nickname with which to join the MUC');
+  final options = parser.handleArguments(args);
+  if (options == null) {
+    return;
+  }
+
+  // Connect
+  final muc = JID.fromString(options['muc']! as String).toBare();
+  final nick = options['nick']! as String;
+  final connection = XmppConnection(
+    TestingReconnectionPolicy(),
+    AlwaysConnectedConnectivityManager(),
+    ClientToServerNegotiator(),
+    ExampleTCPSocketWrapper(parser.srvRecord),
+  )..connectionSettings = parser.connectionSettings;
+
+  // Register the managers and negotiators
+  await connection.registerManagers([
+    PresenceManager(),
+    DiscoManager([]),
+    PubSubManager(),
+    MessageManager(),
+    StableIdManager(),
+    MUCManager(),
+  ]);
+  await connection.registerFeatureNegotiators([
+    SaslPlainNegotiator(),
+    ResourceBindingNegotiator(),
+    StartTlsNegotiator(),
+    SaslScramNegotiator(10, '', '', ScramHashType.sha1),
+  ]);
+
+  // Connect
+  Logger.root.info('Connecting...');
+  final result =
+      await connection.connect(shouldReconnect: false, waitUntilLogin: true);
+  if (!result.isType<bool>()) {
+    Logger.root.severe('Authentication failed!');
+    return;
+  }
+  Logger.root.info('Connected.');
+
+  // Print received messages.
+  connection
+      .asBroadcastStream()
+      .where((event) => event is MessageEvent)
+      .listen((event) {
+    event as MessageEvent;
+
+    // Ignore messages with no <body />
+    final body = event.get<MessageBodyData>()?.body;
+    if (body == null) {
+      return;
+    }
+
+    print('=====> [${event.from}] $body');
+  });
+
+  // Join room
+  final mm = connection.getManagerById<MUCManager>(mucManager)!;
+  await mm.joinRoom(
+    muc,
+    nick,
+    maxHistoryStanzas: 0,
+  );
+  final state = (await mm.getRoomState(muc))!;
+
+  print('=====> ${state.members.length} users in room');
+  print('=====> ${state.members.values.map((m) => m.nick).join(", ")}');
+
+  final repl = Repl(prompt: '> ');
+  await for (final line in repl.runAsync()) {
+    await connection
+        .getManagerById<MessageManager>(messageManager)!
+        .sendMessage(
+            muc,
+            TypedMap<StanzaHandlerExtension>.fromList([
+              MessageBodyData(line),
+              StableIdData(
+                // NOTE: Don't do this. Use a UUID.
+                DateTime.now().millisecondsSinceEpoch.toString(),
+                null,
+              ),
+            ]),
+            type: 'groupchat');
+  }
+
+  // Leave room
+  await connection.getManagerById<MUCManager>(mucManager)!.leaveRoom(muc);
+
+  // Disconnect
+  await connection.disconnect();
+}

examples_dart/bin/omemo_client.dart

@@ -0,0 +1,116 @@
+import 'package:chalkdart/chalk.dart';
+import 'package:cli_repl/cli_repl.dart';
+import 'package:example_dart/arguments.dart';
+import 'package:example_dart/socket.dart';
+import 'package:logging/logging.dart';
+import 'package:moxxmpp/moxxmpp.dart';
+import 'package:omemo_dart/omemo_dart.dart' as omemo;
+
+void main(List<String> args) async {
+  // Set up logging
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.listen((record) {
+    // ignore: avoid_print
+    print(
+      '[${record.level.name}] (${record.loggerName}) ${record.time}: ${record.message}',
+    );
+  });
+
+  final parser = ArgumentParser()
+    ..parser.addOption('to', help: 'The JID to send messages to');
+  final options = parser.handleArguments(args);
+  if (options == null) {
+    return;
+  }
+
+  // Connect
+  final jid = parser.jid;
+  final to = JID.fromString(options['to']! as String).toBare();
+  final connection = XmppConnection(
+    TestingReconnectionPolicy(),
+    AlwaysConnectedConnectivityManager(),
+    ClientToServerNegotiator(),
+    ExampleTCPSocketWrapper(parser.srvRecord, true),
+  )..connectionSettings = parser.connectionSettings;
+
+  // Generate OMEMO data
+  omemo.OmemoManager? oom;
+  final moxxmppOmemo = OmemoManager(
+    () async => oom!,
+    (toJid, _) async => toJid == to,
+  );
+  oom = omemo.OmemoManager(
+    await omemo.OmemoDevice.generateNewDevice(jid.toString(), opkAmount: 5),
+    omemo.BlindTrustBeforeVerificationTrustManager(),
+    moxxmppOmemo.sendEmptyMessageImpl,
+    moxxmppOmemo.fetchDeviceList,
+    moxxmppOmemo.fetchDeviceBundle,
+    moxxmppOmemo.subscribeToDeviceListImpl,
+    moxxmppOmemo.publishDeviceImpl,
+  );
+  final deviceId = await oom.getDeviceId();
+  Logger.root.info('Our device id: $deviceId');
+
+  // Register the managers and negotiators
+  await connection.registerManagers([
+    PresenceManager(),
+    DiscoManager([]),
+    PubSubManager(),
+    MessageManager(),
+    moxxmppOmemo,
+  ]);
+  await connection.registerFeatureNegotiators([
+    SaslPlainNegotiator(),
+    ResourceBindingNegotiator(),
+    StartTlsNegotiator(),
+    SaslScramNegotiator(10, '', '', ScramHashType.sha1),
+  ]);
+
+  // Set up event handlers
+  connection.asBroadcastStream().listen((event) {
+    if (event is MessageEvent) {
+      Logger.root.info(event.id);
+      Logger.root.info(event.extensions.keys.toList());
+
+      final body = event.encryptionError != null
+          ? chalk.red('Failed to decrypt message: ${event.encryptionError}')
+          : chalk.green(event.get<MessageBodyData>()?.body ?? '');
+      print('[${event.from.toString()}] $body');
+    }
+  });
+
+  // Connect
+  Logger.root.info('Connecting...');
+  final result =
+      await connection.connect(shouldReconnect: false, waitUntilLogin: true);
+  if (!result.isType<bool>()) {
+    Logger.root.severe('Authentication failed!');
+    return;
+  }
+  Logger.root.info('Connected.');
+
+  // Publish our bundle
+  Logger.root.info('Publishing bundle');
+  final device = await oom.getDevice();
+  final omemoResult = await moxxmppOmemo.publishBundle(await device.toBundle());
+  if (!omemoResult.isType<bool>()) {
+    Logger.root.severe(
+        'Failed to publish OMEMO bundle: ${omemoResult.get<OmemoError>()}');
+    return;
+  }
+
+  final repl = Repl(prompt: '> ');
+  await for (final line in repl.runAsync()) {
+    await connection
+        .getManagerById<MessageManager>(messageManager)!
+        .sendMessage(
+          to,
+          TypedMap<StanzaHandlerExtension>.fromList([
+            MessageBodyData(line),
+          ]),
+        );
+  }
+
+  // Disconnect
+  await connection.disconnect();
+}

examples_dart/bin/simple_client.dart

@@ -0,0 +1,112 @@
+import 'package:logging/logging.dart';
+import 'package:moxxmpp/moxxmpp.dart';
+import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
+
+/// The JID we want to authenticate as.
+final xmppUser = JID.fromString('jane@example.com');
+
+/// The password to authenticate with.
+const xmppPass = 'secret';
+
+/// The [xmppHost]:[xmppPort] server address to connect to.
+/// In a real application, one might prefer to use [TCPSocketWrapper]
+/// with a custom DNS implementation to let moxxmpp resolve the XMPP
+/// server's address automatically. However, if we just provide a host
+/// and a port, then [TCPSocketWrapper] will just skip the resolution and
+/// immediately use the provided connection details.
+const xmppHost = 'localhost';
+const xmppPort = 5222;
+
+void main(List<String> args) async {
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.listen((record) {
+    print('${record.level.name}|${record.time}: ${record.message}');
+  });
+
+  // This class manages every aspect of handling the XMPP stream.
+  final connection = XmppConnection(
+    // A reconnection policy tells the connection how to handle an error
+    // while or after connecting to the server. The [TestingReconnectionPolicy]
+    // immediately triggers a reconnection. In a real implementation, one might
+    // prefer to use a smarter strategy, like using an exponential backoff.
+    TestingReconnectionPolicy(),
+
+    // A connectivity manager tells the connection when it can connect. This is to
+    // ensure that we're not constantly trying to reconnect because we have no
+    // Internet connection. [AlwaysConnectedConnectivityManager] always says that
+    // we're connected. In a real application, one might prefer to use a smarter
+    // strategy, like using connectivity_plus to query the system's network connectivity
+    // state.
+    AlwaysConnectedConnectivityManager(),
+
+    // This kind of negotiator tells the connection how to handle the stream
+    // negotiations. The [ClientToServerNegotiator] allows to connect to the server
+    // as a regular client. Another negotiator would be the [ComponentToServerNegotiator] that
+    // allows for connections to the server where we're acting as a component.
+    ClientToServerNegotiator(),
+
+    // A wrapper around any kind of connection. In this case, we use the [TCPSocketWrapper], which
+    // uses a dart:io Socket/SecureSocket to connect to the server. If you want, you can also
+    // provide your own socket to use, for example, WebSockets or any other connection
+    // mechanism.
+    TCPSocketWrapper(false),
+  )..connectionSettings = ConnectionSettings(
+      jid: xmppUser,
+      password: xmppPass,
+      host: xmppHost,
+      port: xmppPort,
+    );
+
+  // Register a set of "managers" that provide you with implementations of various
+  // XEPs. Some have interdependencies, which need to be met. However, this example keeps
+  // it simple and just registers a [MessageManager], which has no required dependencies.
+  await connection.registerManagers([
+    // The [MessageManager] handles receiving and sending <message /> stanzas.
+    MessageManager(),
+  ]);
+
+  // Feature negotiators are objects that tell the connection negotiator what stream features
+  // we can negotiate and enable. moxxmpp negotiators always try to enable their features.
+  await connection.registerFeatureNegotiators([
+    // This negotiator authenticates to the server using SASL PLAIN with the provided
+    // credentials.
+    SaslPlainNegotiator(),
+    // This negotiator attempts to bind a resource. By default, it's always a random one.
+    ResourceBindingNegotiator(),
+    // This negotiator attempts to do StartTLS before authenticating.
+    StartTlsNegotiator(),
+  ]);
+
+  // Set up a stream handler for the connection's event stream. Managers and negotiators
+  // may trigger certain events. The [MessageManager], for example, triggers a [MessageEvent]
+  // whenever a message is received. If other managers are registered that parse a message's
+  // contents, then they can add their data to the event.
+  connection.asBroadcastStream().listen((event) {
+    if (event is! MessageEvent) {
+      return;
+    }
+
+    // The text body (contents of the <body /> element) are returned as a
+    // [MessageBodyData] object. However, a message does not have to contain a
+    // body, so it is nullable.
+    final body = event.extensions.get<MessageBodyData>()?.body;
+    print('[<-- ${event.from}] $body');
+  });
+
+  // Connect to the server.
+  final result = await connection.connect(
+    // This flag indicates that we want to reconnect in case something happens.
+    shouldReconnect: true,
+    // This flag indicates that we want the returned Future to only resolve
+    // once the stream negotiations are done and no negotiator has any feature left
+    // to negotiate.
+    waitUntilLogin: true,
+  );
+
+  // Check if the connection was successful. [connection.connect] can return a boolean
+  // to indicate success or a [XmppError] in case the connection attempt failed.
+  if (!result.isType<bool>()) {
+    print('Failed to connect to server');
+    return;
+  }
+}

examples_dart/lib/arguments.dart

@@ -0,0 +1,84 @@
+import 'package:args/args.dart';
+import 'package:chalkdart/chalk.dart';
+import 'package:moxxmpp/moxxmpp.dart';
+import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
+
+extension StringToInt on String {
+  int toInt() => int.parse(this);
+}
+
+/// A wrapper around [ArgParser] for providing convenience functions and standard parameters
+/// to the examples.
+class ArgumentParser {
+  ArgumentParser() {
+    parser
+      ..addOption('jid', help: 'The JID to connect as')
+      ..addOption('password', help: 'The password to use for authenticating')
+      ..addOption('host',
+          help:
+              'The host address to connect to (By default uses the domain part of the JID)')
+      ..addOption('port', help: 'The port to connect to')
+      ..addOption('xmpps-srv',
+          help:
+              'Inject a SRV record for _xmpps-client._tcp. Format: <priority>,<weight>,<target>,<port>')
+      ..addFlag('help',
+          abbr: 'h',
+          negatable: false,
+          defaultsTo: false,
+          help: 'Show this help text');
+  }
+
+  /// The [ArgParser] that handles parsing the arguments.
+  final ArgParser parser = ArgParser();
+
+  /// The parsed options. Only valid after calling [handleArguments].
+  late ArgResults options;
+
+  ArgResults? handleArguments(List<String> args) {
+    options = parser.parse(args);
+    if (options['help']!) {
+      print(parser.usage);
+      return null;
+    }
+
+    if (options['jid'] == null) {
+      print(chalk.red('No JID specified'));
+      print(parser.usage);
+      return null;
+    }
+
+    if (options['password'] == null) {
+      print(chalk.red('No password specified'));
+      print(parser.usage);
+      return null;
+    }
+
+    return options;
+  }
+
+  /// The JID to connect as.
+  JID get jid => JID.fromString(options['jid']!).toBare();
+
+  /// Construct connection settings from the parsed options.
+  ConnectionSettings get connectionSettings => ConnectionSettings(
+        jid: jid,
+        password: options['password']!,
+        host: options['host'],
+        port: (options['port'] as String?)?.toInt(),
+      );
+
+  /// Construct an xmpps-client SRV record for injection, if specified.
+  MoxSrvRecord? get srvRecord {
+    if (options['xmpps-srv'] == null) {
+      return null;
+    }
+
+    final parts = options['xmpps-srv']!.split(',');
+    return MoxSrvRecord(
+      int.parse(parts[0]),
+      int.parse(parts[1]),
+      parts[2],
+      int.parse(parts[3]),
+    );
+  }
+}

examples_dart/lib/socket.dart

@@ -0,0 +1,22 @@
+import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
+
+/// A simple socket for examples that allows injection of SRV records (since
+/// we cannot use moxdns here).
+class ExampleTCPSocketWrapper extends TCPSocketWrapper {
+  ExampleTCPSocketWrapper(this.srvRecord, bool logData) : super(logData);
+
+  /// A potential SRV record to inject for testing.
+  final MoxSrvRecord? srvRecord;
+
+  @override
+  bool onBadCertificate(dynamic certificate, String domain) {
+    return true;
+  }
+
+  @override
+  Future<List<MoxSrvRecord>> srvQuery(String domain, bool dnssec) async {
+    return [
+      if (srvRecord != null) srvRecord!,
+    ];
+  }
+}

examples_dart/pubspec.yaml

@@ -0,0 +1,35 @@
+name: example_dart
+description: A collection of samples for moxxmpp.
+version: 1.0.0
+
+environment:
+  sdk: '>=3.0.0 <4.0.0'
+
+dependencies:
+  args: 2.4.1
+  chalkdart: 2.0.9
+  cli_repl: 0.2.3
+  logging: ^1.0.2
+  moxxmpp:
+    hosted: https://git.polynom.me/api/packages/Moxxy/pub
+    version: 0.4.0
+  moxxmpp_socket_tcp:
+    hosted: https://git.polynom.me/api/packages/Moxxy/pub
+    version: 0.4.0
+  omemo_dart:
+    hosted: https://git.polynom.me/api/packages/PapaTutuWawa/pub
+    version: ^0.5.1
+
+dependency_overrides:
+  moxxmpp:
+    path: ../packages/moxxmpp
+  moxxmpp_socket_tcp:
+    path: ../packages/moxxmpp_socket_tcp
+  omemo_dart:
+    git:
+      url: https://github.com/PapaTutuWawa/omemo_dart.git
+      rev: 49c7e114e6cf80dcde55fbbd218bba3182045862
+    
+dev_dependencies:
+  lints: ^2.0.0
+  test: ^1.16.0

flake.lock

@@ -1,12 +1,74 @@
 {
   "nodes": {
-    "flake-utils": {
+    "android-nixpkgs": {
+      "inputs": {
+        "devshell": "devshell",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
       "locked": {
-        "lastModified": 1667395993,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "lastModified": 1727554699,
+        "narHash": "sha256-puBCNL5PW7Pej+6Srmi2YjEgNeE015NFe33hbkkLqeQ=",
+        "owner": "tadfisher",
+        "repo": "android-nixpkgs",
+        "rev": "bc34ef1c71fe9eafcfb1d637b431fca83d746625",
+        "type": "github"
+      },
+      "original": {
+        "owner": "tadfisher",
+        "repo": "android-nixpkgs",
+        "type": "github"
+      }
+    },
+    "devshell": {
+      "inputs": {
+        "nixpkgs": [
+          "android-nixpkgs",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1722113426,
+        "narHash": "sha256-Yo/3loq572A8Su6aY5GP56knpuKYRvM2a1meP9oJZCw=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "67cce7359e4cd3c45296fb4aaf6a19e2a9c757ae",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1726560853,
+        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1692799911,
+        "narHash": "sha256-3eihraek4qL744EvQXsK1Ha6C3CR7nnT8X2qWap4RNk=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "f9e7cf818399d17d347f847525c5a5a8032e4e44",
         "type": "github"
       },
       "original": {
@@ -17,11 +79,27 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1667610399,
-        "narHash": "sha256-XZd0f4ZWAY0QOoUSdiNWj/eFiKb4B9CJPtl9uO9SYY4=",
+        "lastModified": 1727348695,
+        "narHash": "sha256-J+PeFKSDV+pHL7ukkfpVzCOO7mBSrrpJ3svwBFABbhI=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1dd8696f96db47156e1424a49578fe7dd4ce99a4",
+        "rev": "1925c603f17fc89f4c8f6bf6f631a802ad85d784",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1727586919,
+        "narHash": "sha256-e/YXG0tO5GWHDS8QQauj8aj4HhXEm602q9swrrlTlKQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "2dcd9c55e8914017226f5948ac22c53872a13ee2",
         "type": "github"
       },
       "original": {
@@ -33,8 +111,39 @@
     },
     "root": {
       "inputs": {
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
+        "android-nixpkgs": "android-nixpkgs",
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs_2"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
       }
     }
   },

flake.nix

@@ -2,10 +2,11 @@
   description = "moxxmpp";
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    android-nixpkgs.url = "github:tadfisher/android-nixpkgs";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, nixpkgs, flake-utils }: flake-utils.lib.eachDefaultSystem (system: let
+  outputs = { self, nixpkgs, android-nixpkgs, flake-utils }: flake-utils.lib.eachDefaultSystem (system: let
      pkgs = import nixpkgs {
       inherit system;
       config = {
@@ -13,6 +14,7 @@
         allowUnfree = true;
       };
     };
+    # Everything to make Flutter happy
     android = pkgs.androidenv.composeAndroidPackages {
       # TODO: Find a way to pin these
       #toolsVersion = "26.1.1";
@@ -29,15 +31,50 @@
       useGoogleAPIs = false;
       useGoogleTVAddOns = false;
     };
-    pinnedJDK = pkgs.jdk;
+    lib = pkgs.lib;
+    pinnedJDK = pkgs.jdk17;
+
+    pythonEnv = pkgs.python3.withPackages (ps: with ps; [
+      pyyaml
+      requests
+    ]);
+
+    moxxmppPubCache = import ./nix/pubcache.moxxmpp.nix {
+      inherit (pkgs) fetchzip runCommand;
+    };
   in {
-    devShell = pkgs.mkShell {
+    packages = {
+      moxxmppDartDocs = pkgs.callPackage ./nix/moxxmpp-docs.nix {
+        inherit (moxxmppPubCache) pubCache;
+      };
+    };
+
+    devShell = let
+      prosody-newer-community-modules = pkgs.prosody.overrideAttrs (old: {
+        communityModules = pkgs.fetchhg {
+          url = "https://hg.prosody.im/prosody-modules";
+          rev = "e3a3a6c86a9f";
+          sha256 = "sha256-C2x6PCv0sYuj4/SroDOJLsNPzfeNCodYKbMqmNodFrk=";
+        };
+
+        src = pkgs.fetchhg {
+          url = "https://hg.prosody.im/trunk";
+          rev = "8a2f75e38eb2";
+          sha256 = "sha256-zMNp9+wQ/hvUVyxFl76DqCVzQUPP8GkNdstiTDkG8Hw=";
+        };
+      });
+      prosody-sasl2 = prosody-newer-community-modules.override {
+        withCommunityModules = [
+          "sasl2" "sasl2_fast" "sasl2_sm" "sasl2_bind2"
+        ];
+      };
+    in pkgs.mkShell {
       buildInputs = with pkgs; [
-        flutter pinnedJDK android.platform-tools dart # Flutter/Android
+        flutter pinnedJDK android.platform-tools dart # Dart
 	      gitlint # Code hygiene
 	      ripgrep # General utilities
 
-        # Flutter dependencies for linux desktop
+        # Flutter dependencies for Linux desktop
         atk
         cairo
         clang
@@ -53,12 +90,38 @@
         pkg-config
         xorg.libX11
         xorg.xorgproto
+
+        # For the scripts in ./scripts/
+        pythonEnv
+
+        # For integration testing against a local prosody server
+        prosody-sasl2
+        mkcert
       ];
 
       CPATH = "${pkgs.xorg.libX11.dev}/include:${pkgs.xorg.xorgproto}/include";
       LD_LIBRARY_PATH = with pkgs; lib.makeLibraryPath [ atk cairo epoxy gdk-pixbuf glib gtk3 harfbuzz pango ];
 
+      ANDROID_SDK_ROOT = "${android.androidsdk}/share/android-sdk";
+      ANDROID_HOME = "${android.androidsdk}/share/android-sdk";
       JAVA_HOME = pinnedJDK;
+
+      # Fix an issue with Flutter using an older version of aapt2, which does not know
+      # an used parameter.
+      GRADLE_OPTS = "-Dorg.gradle.project.android.aapt2FromMavenOverride=${android.androidsdk}/share/android-sdk/build-tools/34.0.0/aapt2";
+    };
+
+    apps = {
+      regenerateNixPackage = let
+        script = pkgs.writeShellScript "regenerate-nix-package.sh" ''
+          set -e
+          ${pythonEnv}/bin/python ./scripts/pubspec2lock.py ./packages/moxxmpp/pubspec.lock ./nix/moxxmpp.lock
+          ${pythonEnv}/bin/python ./scripts/lock2nix.py ./nix/moxxmpp.lock ./nix/pubcache.moxxmpp.nix moxxmpp
+        '';
+      in {
+        type = "app";
+        program = "${script}";
+      };
     };
   });
 }

integration_tests/.gitignore

@@ -0,0 +1,6 @@
+# Files and directories created by pub.
+.dart_tool/
+.packages
+
+# Conventional directory for build output.
+build/

integration_tests/README.md

@@ -0,0 +1,5 @@
+# Integration Tests
+
+The included `./prosody.cfg.lua` config file must be used for integration testing.
+Additionally, ensure that a user `testuser@localhost` with the password `abc123`
+exists. Note that this currently requires prosody-trunk.

integration_tests/analysis_options.yaml

@@ -0,0 +1 @@
+include: ../analysis_options.yaml

integration_tests/certs/localhost.crt

@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

integration_tests/certs/localhost.key

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
+MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDUMSURc9j5UNA/
+txKKQrSd7QqAOCisZg8b1HuU5648sfIVhivLvz6EHTfs5PQE7IDa5O7XKuiDR0j/
+hgaJw8MipeEiAd+NX7iQyLlKA7sQJY4GZkWpMLdsHC9s22hbjRoWNhIVo6Sb+ed+
+n6dqUQkln82RKQPiB1PekfUKWyi+UjgGWzF4igm3IbPEyJ0lVcMCow2totq3MkHC
+dPc4Sz3fFN/sp3UpSlCn05kWsaLXnO/+fq0KatwLfEw5Ue5iSFbRQJMWZ6/tmpuC
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+UQOhB7Mt8thivmP9GQIn/TwoZ24zxLsGYhkA/dFY7Id6pyAcpMd8V7/8Ub4dYvuG
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+RQyS4bd8D8I52sUf3N5h2mxS9tmLsGLWbhfcLvR0PJh/gaRmLmEp/imEYLm8WvU0
+Q+6rYXs7rE6kVwJygBjxd0m003Q49FoM9gec2RECgYEA5SLAe2UmJSLIb0DKk27o
+nSfARDSdi9N40vIjDFHmDRdKTOYicED/f7KqXnxVpvFxDdCvJ7xeC4V7vkaqiiwd
+/oMLQq0GjmBxG/PNd1AFIWDydyH+JcY6U4XWIzIw92OKVYC/KMvd2f9orTfmDyAU
+RsGMfgV90kCzouAZKy3yPmo=
+-----END PRIVATE KEY-----

integration_tests/create_users.sh

@@ -0,0 +1,2 @@
+prosodyctl --config ./prosody.cfg.lua register testuser1 localhost abc123
+prosodyctl --config ./prosody.cfg.lua register testuser2 localhost abc123

integration_tests/prosody.cfg.lua

@@ -0,0 +1,62 @@
+admins = { }
+plugin_paths = {}
+
+modules_enabled = {
+	-- Generally required
+		"disco"; -- Service discovery
+		"roster"; -- Allow users to have a roster. Recommended ;)
+		"saslauth"; -- Authentication for clients and servers. Recommended if you want to log in.
+		"tls"; -- Add support for secure TLS on c2s/s2s connections
+
+	-- Not essential, but recommended
+		"blocklist"; -- Allow users to block communications with other users
+		"bookmarks"; -- Synchronise the list of open rooms between clients
+		"carbons"; -- Keep multiple online clients in sync
+		"dialback"; -- Support for verifying remote servers using DNS
+		"limits"; -- Enable bandwidth limiting for XMPP connections
+		"pep"; -- Allow users to store public and private data in their account
+		"private"; -- Legacy account storage mechanism (XEP-0049)
+		"smacks"; -- Stream management and resumption (XEP-0198)
+		"vcard4"; -- User profiles (stored in PEP)
+		"vcard_legacy"; -- Conversion between legacy vCard and PEP Avatar, vcard
+
+	-- Nice to have
+		"csi_simple"; -- Simple but effective traffic optimizations for mobile devices
+		"invites"; -- Create and manage invites
+		"invites_adhoc"; -- Allow admins/users to create invitations via their client
+		"invites_register"; -- Allows invited users to create accounts
+		"ping"; -- Replies to XMPP pings with pongs
+		"register"; -- Allow users to register on this server using a client and change passwords
+		"time"; -- Let others know the time here on this server
+		"uptime"; -- Report how long server has been running
+		"version"; -- Replies to server version requests
+
+	-- SASL2
+	        "sasl2";
+		"sasl2_sm";
+		"sasl2_fast";
+		"sasl2_bind2";
+}
+
+s2s_secure_auth = false
+
+-- Authentication
+authentication = "internal_plain"
+
+-- Storage
+storage = "internal"
+data_path = "/tmp/prosody-data/"
+log = {
+	debug = "*console";
+}
+
+pidfile = "/tmp/prosody.pid"
+
+component_ports = { 8888 }
+component_interfaces = { '127.0.0.1' }
+VirtualHost "localhost"
+
+Component "component.localhost"
+    component_secret = "abc123"
+
+Component "muc.localhost" "muc"

integration_tests/pubspec.yaml

@@ -0,0 +1,16 @@
+name: integration_tests
+description: A sample command-line application.
+version: 1.0.0
+
+environment:
+  sdk: '>=2.18.0 <3.0.0'
+
+dependencies:
+  logging: ^1.0.2
+  moxxmpp: 0.3.0
+  moxxmpp_socket_tcp: 0.3.0
+  
+dev_dependencies:
+  lints: ^2.0.0
+  test: ^1.16.0
+  very_good_analysis: ^3.0.1

integration_tests/test/component_test.dart

@@ -0,0 +1,42 @@
+import 'package:logging/logging.dart';
+import 'package:moxxmpp/moxxmpp.dart';
+import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
+import 'package:test/test.dart';
+
+class TestingTCPSocketWrapper extends TCPSocketWrapper {
+  @override
+  bool onBadCertificate(dynamic certificate, String domain) {
+    return true;
+  }
+}
+
+void main() {
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.listen((record) {
+    // ignore: avoid_print
+    print(
+      '[${record.level.name}] (${record.loggerName}) ${record.time}: ${record.message}',
+    );
+  });
+
+  test('Test connecting to prosody as a component', () async {
+    final conn = XmppConnection(
+      TestingReconnectionPolicy(),
+      AlwaysConnectedConnectivityManager(),
+      ComponentToServerNegotiator(),
+      TestingTCPSocketWrapper(),
+    )..connectionSettings = ConnectionSettings(
+        jid: JID.fromString('component.localhost'),
+        password: 'abc123',
+        host: '127.0.0.1',
+        port: 8888,
+      );
+
+    final result = await conn.connect(
+      waitUntilLogin: true,
+      shouldReconnect: false,
+      enableReconnectOnSuccess: false,
+    );
+    expect(result.isType<bool>(), true);
+  });
+}

integration_tests/test/sasl2_test.dart

@@ -0,0 +1,73 @@
+import 'package:logging/logging.dart';
+import 'package:moxxmpp/moxxmpp.dart';
+import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
+import 'package:test/test.dart';
+
+class TestingTCPSocketWrapper extends TCPSocketWrapper {
+  @override
+  bool onBadCertificate(dynamic certificate, String domain) {
+    return true;
+  }
+}
+
+void main() {
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.listen((record) {
+    // ignore: avoid_print
+    print(
+      '[${record.level.name}] (${record.loggerName}) ${record.time}: ${record.message}',
+    );
+  });
+
+  test('Test authenticating against Prosody with SASL2, Bind2, and FAST',
+      () async {
+    final conn = XmppConnection(
+      TestingReconnectionPolicy(),
+      AlwaysConnectedConnectivityManager(),
+      ClientToServerNegotiator(),
+      TestingTCPSocketWrapper(),
+    )..connectionSettings = ConnectionSettings(
+        jid: JID.fromString('testuser@localhost'),
+        password: 'abc123',
+        host: '127.0.0.1',
+        port: 5222,
+      );
+    final csi = CSIManager();
+    await csi.setInactive(sendNonza: false);
+    await conn.registerManagers([
+      RosterManager(TestingRosterStateManager('', [])),
+      DiscoManager([]),
+    ]);
+    await conn.registerFeatureNegotiators([
+      SaslPlainNegotiator(),
+      ResourceBindingNegotiator(),
+      FASTSaslNegotiator(),
+      Bind2Negotiator(),
+      StartTlsNegotiator(),
+      Sasl2Negotiator()
+        ..userAgent = const UserAgent(
+          id: 'd4565fa7-4d72-4749-b3d3-740edbf87770',
+          software: 'moxxmpp',
+          device: "PapaTutuWawa's awesome device",
+        ),
+    ]);
+
+    final result = await conn.connect(
+      waitUntilLogin: true,
+      shouldReconnect: false,
+      enableReconnectOnSuccess: false,
+    );
+    expect(result.isType<bool>(), true);
+    expect(
+      conn.getNegotiatorById<Sasl2Negotiator>(sasl2Negotiator)!.state,
+      NegotiatorState.done,
+    );
+    expect(
+      conn
+              .getNegotiatorById<FASTSaslNegotiator>(saslFASTNegotiator)!
+              .fastToken !=
+          null,
+      true,
+    );
+  });
+}

nix/moxxmpp-docs.nix

@@ -0,0 +1,35 @@
+{
+  stdenv
+, pubCache
+, dart
+, lib
+}:
+
+stdenv.mkDerivation {
+  pname = "moxxmpp-docs";
+  version = "0.3.1";
+
+  PUB_CACHE = "${pubCache}";
+  
+  src = "${./..}/packages/moxxmpp";
+
+  buildPhase = ''
+    runHook preBuild
+
+    (
+    set -x
+    echo $PUB_CACHE
+    ${dart}/bin/dart pub get --no-precompile --offline
+    )
+
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    ${dart}/bin/dart doc -o $out
+
+    runHook postInstall
+  '';
+}

nix/moxxmpp.lock

@@ -0,0 +1,813 @@
+# CREATED BY pubspec2lock.py
+# DO NOT EDIT BY HAND
+packages:
+  _fe_analyzer_shared:
+    archive_url: https://pub.dartlang.org/packages/_fe_analyzer_shared/versions/61.0.0.tar.gz
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      sha256: ae92f5d747aee634b87f89d9946000c2de774be1d6ac3e58268224348cd0101a
+      url: https://pub.dev
+    sha256: 15fh9ka41dw4qsynv07msq4i243fibprcmafdygw5x88f7m55fq3
+    source: hosted
+    version: 61.0.0
+  analyzer:
+    archive_url: https://pub.dartlang.org/packages/analyzer/versions/5.13.0.tar.gz
+    dependency: transitive
+    description:
+      name: analyzer
+      sha256: ea3d8652bda62982addfd92fdc2d0214e5f82e43325104990d4f4c4a2a313562
+      url: https://pub.dev
+    sha256: 0w604zngxwfx0xqxvhbxrhdh04wgm6ad6a1lbwnyvmk57amv44np
+    source: hosted
+    version: 5.13.0
+  args:
+    archive_url: https://pub.dartlang.org/packages/args/versions/2.4.2.tar.gz
+    dependency: transitive
+    description:
+      name: args
+      sha256: eef6c46b622e0494a36c5a12d10d77fb4e855501a91c1b9ef9339326e58f0596
+      url: https://pub.dev
+    sha256: 01ps253280c6dbx0vncw4wga4l2qp1zx779qjj2x06xzb3744zbz
+    source: hosted
+    version: 2.4.2
+  async:
+    archive_url: https://pub.dartlang.org/packages/async/versions/2.11.0.tar.gz
+    dependency: transitive
+    description:
+      name: async
+      sha256: 947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c
+      url: https://pub.dev
+    sha256: 0hfgvjajp5c2mw68186hgrk9v5zjhhi149hlhl0fap274p2v1g3q
+    source: hosted
+    version: 2.11.0
+  boolean_selector:
+    archive_url: https://pub.dartlang.org/packages/boolean_selector/versions/2.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: boolean_selector
+      sha256: 6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66
+      url: https://pub.dev
+    sha256: 0hxq8072hb89q9s91xlz9fvrjxfy7hw6jkdwkph5dp77df841kmj
+    source: hosted
+    version: 2.1.1
+  build:
+    archive_url: https://pub.dartlang.org/packages/build/versions/2.3.1.tar.gz
+    dependency: transitive
+    description:
+      name: build
+      sha256: 3fbda25365741f8251b39f3917fb3c8e286a96fd068a5a242e11c2012d495777
+      url: https://pub.dev
+    sha256: 1x6nkii6kqy6y7ck0151yfhc9lp2nvbhznnhdi2mxr8afk6jxigd
+    source: hosted
+    version: 2.3.1
+  build_config:
+    archive_url: https://pub.dartlang.org/packages/build_config/versions/1.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: build_config
+      sha256: bf80fcfb46a29945b423bd9aad884590fb1dc69b330a4d4700cac476af1708d1
+      url: https://pub.dev
+    sha256: 092rrbhbdy9fk50jqb1fwj1sfk415fi43irvsd0hk5w90gn8vazj
+    source: hosted
+    version: 1.1.1
+  build_daemon:
+    archive_url: https://pub.dartlang.org/packages/build_daemon/versions/3.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: build_daemon
+      sha256: 757153e5d9cd88253cb13f28c2fb55a537dc31fefd98137549895b5beb7c6169
+      url: https://pub.dev
+    sha256: 1wn7bq846vgdj62bkh9h25l95xdsndv0jdyw52nyr0591l3bpg3h
+    source: hosted
+    version: 3.1.1
+  build_resolvers:
+    archive_url: https://pub.dartlang.org/packages/build_resolvers/versions/2.3.1.tar.gz
+    dependency: transitive
+    description:
+      name: build_resolvers
+      sha256: a7417cc44d9edb3f2c8760000270c99dba8c72ff66d0146772b8326565780745
+      url: https://pub.dev
+    sha256: 00h9abhrfmnl0xxziyf6p68sxnbv2ww1c4dhgpnz00mzbmamnq5c
+    source: hosted
+    version: 2.3.1
+  build_runner:
+    archive_url: https://pub.dartlang.org/packages/build_runner/versions/2.3.3.tar.gz
+    dependency: direct dev
+    description:
+      name: build_runner
+      sha256: b0a8a7b8a76c493e85f1b84bffa0588859a06197863dba8c9036b15581fd9727
+      url: https://pub.dev
+    sha256: 0b5ha1l6k0gn2swqgqvfy2vl58klf81sxrjnmk0p7rj1wzbqjm7l
+    source: hosted
+    version: 2.3.3
+  build_runner_core:
+    archive_url: https://pub.dartlang.org/packages/build_runner_core/versions/7.2.7%2B1.tar.gz
+    dependency: transitive
+    description:
+      name: build_runner_core
+      sha256: 0671ad4162ed510b70d0eb4ad6354c249f8429cab4ae7a4cec86bbc2886eb76e
+      url: https://pub.dev
+    sha256: 07r1kfy6ylm4i4xrb24ns8l26h4h1lgcskmnf8wvq2rd5d5hq790
+    source: hosted
+    version: 7.2.7+1
+  built_collection:
+    archive_url: https://pub.dartlang.org/packages/built_collection/versions/5.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: built_collection
+      sha256: 376e3dd27b51ea877c28d525560790aee2e6fbb5f20e2f85d5081027d94e2100
+      url: https://pub.dev
+    sha256: 0bqjahxr42q84w91nhv3n4cr580l3s3ffx3vgzyyypgqnrck0hv3
+    source: hosted
+    version: 5.1.1
+  built_value:
+    archive_url: https://pub.dartlang.org/packages/built_value/versions/8.6.2.tar.gz
+    dependency: transitive
+    description:
+      name: built_value
+      sha256: ff627b645b28fb8bdb69e645f910c2458fd6b65f6585c3a53e0626024897dedf
+      url: https://pub.dev
+    sha256: 1y84imf9xqqy3gnd5zz9bcln6mycy7qx35r70b0izm31ismlbzkv
+    source: hosted
+    version: 8.6.2
+  checked_yaml:
+    archive_url: https://pub.dartlang.org/packages/checked_yaml/versions/2.0.3.tar.gz
+    dependency: transitive
+    description:
+      name: checked_yaml
+      sha256: feb6bed21949061731a7a75fc5d2aa727cf160b91af9a3e464c5e3a32e28b5ff
+      url: https://pub.dev
+    sha256: 1sn01yrmj0pkijn08g3v45c3zmyvdygk9svigkkzybgicdwlkpqs
+    source: hosted
+    version: 2.0.3
+  code_builder:
+    archive_url: https://pub.dartlang.org/packages/code_builder/versions/4.6.0.tar.gz
+    dependency: transitive
+    description:
+      name: code_builder
+      sha256: 315a598c7fbe77f22de1c9da7cfd6fd21816312f16ffa124453b4fc679e540f1
+      url: https://pub.dev
+    sha256: 1shgl7mxiyv0hhw326yqj2b9jxi1h74qxmsnxf1d1xc6yz766p9a
+    source: hosted
+    version: 4.6.0
+  collection:
+    archive_url: https://pub.dartlang.org/packages/collection/versions/1.18.0.tar.gz
+    dependency: direct main
+    description:
+      name: collection
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
+      url: https://pub.dev
+    sha256: 1mr8j0078c4z9hhckiq8m735rggsazwfprm0w9gisil51vh7j2mk
+    source: hosted
+    version: 1.18.0
+  convert:
+    archive_url: https://pub.dartlang.org/packages/convert/versions/3.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: convert
+      sha256: 0f08b14755d163f6e2134cb58222dd25ea2a2ee8a195e53983d57c075324d592
+      url: https://pub.dev
+    sha256: 0adsigjk3l1c31i6k91p28dqyjlgwiqrs4lky5djrm2scf8k6cri
+    source: hosted
+    version: 3.1.1
+  coverage:
+    archive_url: https://pub.dartlang.org/packages/coverage/versions/1.6.3.tar.gz
+    dependency: transitive
+    description:
+      name: coverage
+      sha256: 2fb815080e44a09b85e0f2ca8a820b15053982b2e714b59267719e8a9ff17097
+      url: https://pub.dev
+    sha256: 1yy9bgkax5b6kk7qa07p452v82fyj4rl1j03fn366ywyvhfrh6lp
+    source: hosted
+    version: 1.6.3
+  crypto:
+    archive_url: https://pub.dartlang.org/packages/crypto/versions/3.0.3.tar.gz
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: ff625774173754681d66daaf4a448684fb04b78f902da9cb3d308c19cc5e8bab
+      url: https://pub.dev
+    sha256: 100ai8qa4p3dyvvd60c4xa9p0gm06yh0d68xgcfm3giraad8xmqj
+    source: hosted
+    version: 3.0.3
+  cryptography:
+    archive_url: https://pub.dartlang.org/packages/cryptography/versions/2.5.0.tar.gz
+    dependency: direct main
+    description:
+      name: cryptography
+      sha256: df156c5109286340817d21fa7b62f9140f17915077127dd70f8bd7a2a0997a35
+      url: https://pub.dev
+    sha256: 1yxn9slqq93ri81fbr2nbsinz0mpk9wk39ny076ja8q31d4i8v3f
+    source: hosted
+    version: 2.5.0
+  dart_style:
+    archive_url: https://pub.dartlang.org/packages/dart_style/versions/2.3.2.tar.gz
+    dependency: transitive
+    description:
+      name: dart_style
+      sha256: 1efa911ca7086affd35f463ca2fc1799584fb6aa89883cf0af8e3664d6a02d55
+      url: https://pub.dev
+    sha256: 0cjhrb1hs8iw9smmfd0fgnxq3nm0w8sz17l6q6svyz6kif19wk9k
+    source: hosted
+    version: 2.3.2
+  file:
+    archive_url: https://pub.dartlang.org/packages/file/versions/6.1.4.tar.gz
+    dependency: transitive
+    description:
+      name: file
+      sha256: 1b92bec4fc2a72f59a8e15af5f52cd441e4a7860b49499d69dfa817af20e925d
+      url: https://pub.dev
+    sha256: 0ajcfblf8d4dicp1sgzkbrhd0b0v0d8wl70jsnf5drjck3p3ppk7
+    source: hosted
+    version: 6.1.4
+  fixnum:
+    archive_url: https://pub.dartlang.org/packages/fixnum/versions/1.1.0.tar.gz
+    dependency: transitive
+    description:
+      name: fixnum
+      sha256: 25517a4deb0c03aa0f32fd12db525856438902d9c16536311e76cdc57b31d7d1
+      url: https://pub.dev
+    sha256: 0nqrzj41ys8dpxf1x70r0kfj1avj0f2j2b7498k8kvc0i9c5asz7
+    source: hosted
+    version: 1.1.0
+  frontend_server_client:
+    archive_url: https://pub.dartlang.org/packages/frontend_server_client/versions/3.2.0.tar.gz
+    dependency: transitive
+    description:
+      name: frontend_server_client
+      sha256: 408e3ca148b31c20282ad6f37ebfa6f4bdc8fede5b74bc2f08d9d92b55db3612
+      url: https://pub.dev
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+    dependency: transitive
+    description:
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+    description:
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+    dependency: direct main
+    description:
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+    dependency: transitive
+    description:
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+    sha256: 002phlj2pg6nll5hv449izxbqk29zwmwc77d0jx2iimz18dgy2r5
+    source: hosted
+    version: 1.24.3
+  test_api:
+    archive_url: https://pub.dartlang.org/packages/test_api/versions/0.6.0.tar.gz
+    dependency: transitive
+    description:
+      name: test_api
+      sha256: 75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8
+      url: https://pub.dev
+    sha256: 0as1xcywjrd2zax3cm56qmnac12shf8c1ynnzzjwnggm23f61dxb
+    source: hosted
+    version: 0.6.0
+  test_core:
+    archive_url: https://pub.dartlang.org/packages/test_core/versions/0.5.3.tar.gz
+    dependency: transitive
+    description:
+      name: test_core
+      sha256: 99806e9e6d95c7b059b7a0fc08f07fc53fabe54a829497f0d9676299f1e8637e
+      url: https://pub.dev
+    sha256: 1cx2rmz1xzk5z5yh8fpbsrsz4mgjanrw4xvnp0qzdnm2d7vhaq0y
+    source: hosted
+    version: 0.5.3
+  timing:
+    archive_url: https://pub.dartlang.org/packages/timing/versions/1.0.1.tar.gz
+    dependency: transitive
+    description:
+      name: timing
+      sha256: 70a3b636575d4163c477e6de42f247a23b315ae20e86442bebe32d3cabf61c32
+      url: https://pub.dev
+    sha256: 15jvxsw7v0gwbdlykma60l1qlhlzb3brh6m0sg2bgbfir4l5s9gw
+    source: hosted
+    version: 1.0.1
+  typed_data:
+    archive_url: https://pub.dartlang.org/packages/typed_data/versions/1.3.2.tar.gz
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: facc8d6582f16042dd49f2463ff1bd6e2c9ef9f3d5da3d9b087e244a7b564b3c
+      url: https://pub.dev
+    sha256: 0q6ggc52vfpr8kqaq69h757wy942hvgshhnsr2pjdinb4zk2sxl1
+    source: hosted
+    version: 1.3.2
+  unorm_dart:
+    archive_url: https://pub.dartlang.org/packages/unorm_dart/versions/0.2.0.tar.gz
+    dependency: transitive
+    description:
+      name: unorm_dart
+      sha256: 5b35bff83fce4d76467641438f9e867dc9bcfdb8c1694854f230579d68cd8f4b
+      url: https://pub.dev
+    sha256: 05kyk2764yz14pzgx00i7h5b1lzh8kjqnxspfzyf8z920bcgbz0v
+    source: hosted
+    version: 0.2.0
+  uuid:
+    archive_url: https://pub.dartlang.org/packages/uuid/versions/3.0.7.tar.gz
+    dependency: direct main
+    description:
+      name: uuid
+      sha256: 648e103079f7c64a36dc7d39369cabb358d377078a051d6ae2ad3aa539519313
+      url: https://pub.dev
+    sha256: 1nh1hxfr6bhyadqqcxrpwrphmm75f1iq4rzfjdwa2486xwlh7vx3
+    source: hosted
+    version: 3.0.7
+  very_good_analysis:
+    archive_url: https://pub.dartlang.org/packages/very_good_analysis/versions/3.1.0.tar.gz
+    dependency: direct dev
+    description:
+      name: very_good_analysis
+      sha256: 4815adc7ded57657038d2bb2a7f332c50e3c8152f7d3c6acf8f6b7c0cc81e5e2
+      url: https://pub.dev
+    sha256: 1p2dh8aahbqyyqfzbsxswafgxnmxgisjq2xfp008skyh7imk6sz4
+    source: hosted
+    version: 3.1.0
+  vm_service:
+    archive_url: https://pub.dartlang.org/packages/vm_service/versions/11.10.0.tar.gz
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: c538be99af830f478718b51630ec1b6bee5e74e52c8a802d328d9e71d35d2583
+      url: https://pub.dev
+    sha256: 15ail7rbaq9ksg73cc0mw2k5imbiidl95yfd4v49k81gp5xmj92w
+    source: hosted
+    version: 11.10.0
+  watcher:
+    archive_url: https://pub.dartlang.org/packages/watcher/versions/1.0.2.tar.gz
+    dependency: transitive
+    description:
+      name: watcher
+      sha256: 6a7f46926b01ce81bfc339da6a7f20afbe7733eff9846f6d6a5466aa4c6667c0
+      url: https://pub.dev
+    sha256: 1sk7gvwa7s0h4l652qrgbh7l8wyqc6nr6lki8m4rj55720p0fnyg
+    source: hosted
+    version: 1.0.2
+  web_socket_channel:
+    archive_url: https://pub.dartlang.org/packages/web_socket_channel/versions/2.4.0.tar.gz
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      sha256: d88238e5eac9a42bb43ca4e721edba3c08c6354d4a53063afaa568516217621b
+      url: https://pub.dev
+    sha256: 0f9441c4zifb5qadpjg319dcilimpkdhfacnkl543802bf8qjn4w
+    source: hosted
+    version: 2.4.0
+  webkit_inspection_protocol:
+    archive_url: https://pub.dartlang.org/packages/webkit_inspection_protocol/versions/1.2.0.tar.gz
+    dependency: transitive
+    description:
+      name: webkit_inspection_protocol
+      sha256: 67d3a8b6c79e1987d19d848b0892e582dbb0c66c57cc1fef58a177dd2aa2823d
+      url: https://pub.dev
+    sha256: 0z400dzw7gf68a3wm95xi2mf461iigkyq6x69xgi7qs3fvpmn3hx
+    source: hosted
+    version: 1.2.0
+  xml:
+    archive_url: https://pub.dartlang.org/packages/xml/versions/6.3.0.tar.gz
+    dependency: direct main
+    description:
+      name: xml
+      sha256: 5bc72e1e45e941d825fd7468b9b4cc3b9327942649aeb6fc5cdbf135f0a86e84
+      url: https://pub.dev
+    sha256: 120azx71gazvrrn07vd83vrffzrhsqnmf9rdjxl73rra9py8ixiy
+    source: hosted
+    version: 6.3.0
+  yaml:
+    archive_url: https://pub.dartlang.org/packages/yaml/versions/3.1.2.tar.gz
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: 75769501ea3489fca56601ff33454fe45507ea3bfb014161abc3b43ae25989d5
+      url: https://pub.dev
+    sha256: 0awh9dynbhrlq8zgszaiyxbyyn9b6wyps1zww4z2lx62nbma0pda
+    source: hosted
+    version: 3.1.2

nix/pubcache.moxxmpp.nix

@@ -0,0 +1,816 @@
+# GENERATED BY LOCK2NIX.py
+# DO NOT EDIT BY HAND
+{fetchzip, runCommand} : rec {
+  _fe_analyzer_shared = fetchzip {
+    sha256 = "15fh9ka41dw4qsynv07msq4i243fibprcmafdygw5x88f7m55fq3";
+    url = "https://pub.dartlang.org/packages/_fe_analyzer_shared/versions/61.0.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  analyzer = fetchzip {
+    sha256 = "0w604zngxwfx0xqxvhbxrhdh04wgm6ad6a1lbwnyvmk57amv44np";
+    url = "https://pub.dartlang.org/packages/analyzer/versions/5.13.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  args = fetchzip {
+    sha256 = "01ps253280c6dbx0vncw4wga4l2qp1zx779qjj2x06xzb3744zbz";
+    url = "https://pub.dartlang.org/packages/args/versions/2.4.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  async = fetchzip {
+    sha256 = "0hfgvjajp5c2mw68186hgrk9v5zjhhi149hlhl0fap274p2v1g3q";
+    url = "https://pub.dartlang.org/packages/async/versions/2.11.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  boolean_selector = fetchzip {
+    sha256 = "0hxq8072hb89q9s91xlz9fvrjxfy7hw6jkdwkph5dp77df841kmj";
+    url = "https://pub.dartlang.org/packages/boolean_selector/versions/2.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build = fetchzip {
+    sha256 = "1x6nkii6kqy6y7ck0151yfhc9lp2nvbhznnhdi2mxr8afk6jxigd";
+    url = "https://pub.dartlang.org/packages/build/versions/2.3.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build_config = fetchzip {
+    sha256 = "092rrbhbdy9fk50jqb1fwj1sfk415fi43irvsd0hk5w90gn8vazj";
+    url = "https://pub.dartlang.org/packages/build_config/versions/1.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build_daemon = fetchzip {
+    sha256 = "1wn7bq846vgdj62bkh9h25l95xdsndv0jdyw52nyr0591l3bpg3h";
+    url = "https://pub.dartlang.org/packages/build_daemon/versions/3.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build_resolvers = fetchzip {
+    sha256 = "00h9abhrfmnl0xxziyf6p68sxnbv2ww1c4dhgpnz00mzbmamnq5c";
+    url = "https://pub.dartlang.org/packages/build_resolvers/versions/2.3.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build_runner = fetchzip {
+    sha256 = "0b5ha1l6k0gn2swqgqvfy2vl58klf81sxrjnmk0p7rj1wzbqjm7l";
+    url = "https://pub.dartlang.org/packages/build_runner/versions/2.3.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build_runner_core = fetchzip {
+    sha256 = "07r1kfy6ylm4i4xrb24ns8l26h4h1lgcskmnf8wvq2rd5d5hq790";
+    url = "https://pub.dartlang.org/packages/build_runner_core/versions/7.2.7%2B1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  built_collection = fetchzip {
+    sha256 = "0bqjahxr42q84w91nhv3n4cr580l3s3ffx3vgzyyypgqnrck0hv3";
+    url = "https://pub.dartlang.org/packages/built_collection/versions/5.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  built_value = fetchzip {
+    sha256 = "1y84imf9xqqy3gnd5zz9bcln6mycy7qx35r70b0izm31ismlbzkv";
+    url = "https://pub.dartlang.org/packages/built_value/versions/8.6.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  checked_yaml = fetchzip {
+    sha256 = "1sn01yrmj0pkijn08g3v45c3zmyvdygk9svigkkzybgicdwlkpqs";
+    url = "https://pub.dartlang.org/packages/checked_yaml/versions/2.0.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  code_builder = fetchzip {
+    sha256 = "1shgl7mxiyv0hhw326yqj2b9jxi1h74qxmsnxf1d1xc6yz766p9a";
+    url = "https://pub.dartlang.org/packages/code_builder/versions/4.6.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  collection = fetchzip {
+    sha256 = "1mr8j0078c4z9hhckiq8m735rggsazwfprm0w9gisil51vh7j2mk";
+    url = "https://pub.dartlang.org/packages/collection/versions/1.18.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  convert = fetchzip {
+    sha256 = "0adsigjk3l1c31i6k91p28dqyjlgwiqrs4lky5djrm2scf8k6cri";
+    url = "https://pub.dartlang.org/packages/convert/versions/3.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  coverage = fetchzip {
+    sha256 = "1yy9bgkax5b6kk7qa07p452v82fyj4rl1j03fn366ywyvhfrh6lp";
+    url = "https://pub.dartlang.org/packages/coverage/versions/1.6.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  crypto = fetchzip {
+    sha256 = "100ai8qa4p3dyvvd60c4xa9p0gm06yh0d68xgcfm3giraad8xmqj";
+    url = "https://pub.dartlang.org/packages/crypto/versions/3.0.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  cryptography = fetchzip {
+    sha256 = "1yxn9slqq93ri81fbr2nbsinz0mpk9wk39ny076ja8q31d4i8v3f";
+    url = "https://pub.dartlang.org/packages/cryptography/versions/2.5.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  dart_style = fetchzip {
+    sha256 = "0cjhrb1hs8iw9smmfd0fgnxq3nm0w8sz17l6q6svyz6kif19wk9k";
+    url = "https://pub.dartlang.org/packages/dart_style/versions/2.3.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  file = fetchzip {
+    sha256 = "0ajcfblf8d4dicp1sgzkbrhd0b0v0d8wl70jsnf5drjck3p3ppk7";
+    url = "https://pub.dartlang.org/packages/file/versions/6.1.4.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  fixnum = fetchzip {
+    sha256 = "0nqrzj41ys8dpxf1x70r0kfj1avj0f2j2b7498k8kvc0i9c5asz7";
+    url = "https://pub.dartlang.org/packages/fixnum/versions/1.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  frontend_server_client = fetchzip {
+    sha256 = "096v7ycix5hgnk750s1qgykyghl2mymhdkg39jrlk3kbj6xygq5b";
+    url = "https://pub.dartlang.org/packages/frontend_server_client/versions/3.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  glob = fetchzip {
+    sha256 = "0ffab3azx8zkma36mk6wnig8bn8g5g0vjrq2gl21y77rxgw9iqxj";
+    url = "https://pub.dartlang.org/packages/glob/versions/2.1.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  graphs = fetchzip {
+    sha256 = "0fda0j8y6sq1rc9zpzglrzysl5h49y2ji1wq2lq0wx2c609dxm7f";
+    url = "https://pub.dartlang.org/packages/graphs/versions/2.3.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  hex = fetchzip {
+    sha256 = "19w3f90mdiy06a6kf8hlwc4jn4cxixkj106kc3g3bis27ar7smkh";
+    url = "https://pub.dartlang.org/packages/hex/versions/0.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  http_multi_server = fetchzip {
+    sha256 = "1zdcm04z85jahb2hs7qs85rh974kw49hffhy9cn1gfda3077dvql";
+    url = "https://pub.dartlang.org/packages/http_multi_server/versions/3.2.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  http_parser = fetchzip {
+    sha256 = "027c4sjkhkkx3sk1aqs6s4djb87syi9h521qpm1bf21bq3gga5jd";
+    url = "https://pub.dartlang.org/packages/http_parser/versions/4.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  io = fetchzip {
+    sha256 = "101kd0rw26vglmr1m5p130kbrp3k7dk4p5nr77wsbwgg53w8c0d4";
+    url = "https://pub.dartlang.org/packages/io/versions/1.0.4.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  js = fetchzip {
+    sha256 = "124a9yqrjdw3p4nnirab9hm9ziwraldlw4q5cb3sr0dcrli74qpw";
+    url = "https://pub.dartlang.org/packages/js/versions/0.6.7.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  json_annotation = fetchzip {
+    sha256 = "1jjw7p8qyqajgdq4jqvxipq5w0qrq9dpi1qmia70pk995akryh6m";
+    url = "https://pub.dartlang.org/packages/json_annotation/versions/4.8.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  json_serializable = fetchzip {
+    sha256 = "1pmidql9x6s2pbhdx9x20pwqwvwpfkvrz0h0cm1f8pqis76c90hb";
+    url = "https://pub.dartlang.org/packages/json_serializable/versions/6.6.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  logging = fetchzip {
+    sha256 = "124hfjs66r30p92ndfmy5fymgy66yk9in97h8sq6fi7r78pqyc7g";
+    url = "https://pub.dartlang.org/packages/logging/versions/1.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  matcher = fetchzip {
+    sha256 = "0inznqkrxqnq09lcbwvda3xd07qfm1k3aa6dv1wy39gvci8hybss";
+    url = "https://pub.dartlang.org/packages/matcher/versions/0.12.16.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  meta = fetchzip {
+    sha256 = "1l3zaz6q2s9mnm7s674xshsfqspy79p5kdbbnc99rf2l76avv4h3";
+    url = "https://pub.dartlang.org/packages/meta/versions/1.9.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  mime = fetchzip {
+    sha256 = "1dha9z64bsz8xhi0p62vmlyikr8xwbdlrw90hxghmm3rdgd9h25w";
+    url = "https://pub.dartlang.org/packages/mime/versions/1.0.4.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  moxlib = fetchzip {
+    sha256 = "1qaacmcqhq33grn2nq8sn23ki62dcmw0fqy589xm1zv6w0pzfmsk";
+    url = "https://git.polynom.me/api/packages/moxxy/pub/api/packages/moxlib/files/0.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  node_preamble = fetchzip {
+    sha256 = "12ajg76r9aqmqkavvlxbnb3sszg1szcq3f30badkd0xc25mnhyh8";
+    url = "https://pub.dartlang.org/packages/node_preamble/versions/2.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  omemo_dart = fetchzip {
+    sha256 = "0fhf89ic5mdyld25l6rfb37a1fk1f0f2b4d72xi4r7pvr0ddjhz8";
+    url = "https://git.polynom.me/api/packages/PapaTutuWawa/pub/api/packages/omemo_dart/files/0.5.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  package_config = fetchzip {
+    sha256 = "1d4l0i4cby344zj45f5shrg2pkw1i1jn03kx0qqh0l7gh1ha7bpc";
+    url = "https://pub.dartlang.org/packages/package_config/versions/2.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  path = fetchzip {
+    sha256 = "1mjdhq2fsz6i9krhp2mnaks2bcw34sa4p7mg0v6njk8dgx2754iv";
+    url = "https://pub.dartlang.org/packages/path/versions/1.8.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pedantic = fetchzip {
+    sha256 = "10ch0h3hi6cfwiz2ihfkh6m36m75c0m7fd0wwqaqggffsj2dn8ad";
+    url = "https://pub.dartlang.org/packages/pedantic/versions/1.11.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  petitparser = fetchzip {
+    sha256 = "19zqrpb1z77aw1k2s8rsxdfxczzv9934g2rdfj2jyiv3pqgdq8gh";
+    url = "https://pub.dartlang.org/packages/petitparser/versions/5.4.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pinenacl = fetchzip {
+    sha256 = "0didjgva658z90hbcmhd0y8w1b8v86dp6gabfhylnw1aixl47cxg";
+    url = "https://pub.dartlang.org/packages/pinenacl/versions/0.5.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pool = fetchzip {
+    sha256 = "0wmzs46hjszv3ayhr1p5l7xza7q9rkg2q9z4swmhdqmhlz3c50x4";
+    url = "https://pub.dartlang.org/packages/pool/versions/1.5.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  protobuf = fetchzip {
+    sha256 = "1jriyisf8bnvq5ygjk93mn2yzdlnii7xrhy6aabz54xr3y4dcy9x";
+    url = "https://pub.dartlang.org/packages/protobuf/versions/2.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  protoc_plugin = fetchzip {
+    sha256 = "0hjjd1xkv4s4g1d5n2aza0kdwlbfl2aivq99230m3yml7irn00jk";
+    url = "https://pub.dartlang.org/packages/protoc_plugin/versions/20.0.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pub_semver = fetchzip {
+    sha256 = "0wpcfz1crxipbjm18m71pl4vl2ra8vw1n93ff8snr54mmlyfb9z1";
+    url = "https://pub.dartlang.org/packages/pub_semver/versions/2.1.4.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pubspec_parse = fetchzip {
+    sha256 = "0dj8sf1w61g7vh1ly3sl690z0nwllzjzbapxswmgsglr0ndcyrs1";
+    url = "https://pub.dartlang.org/packages/pubspec_parse/versions/1.2.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  random_string = fetchzip {
+    sha256 = "11cjiv75sgldvk3x7w6j77lgi08r6737wm94m3ylabylsr6zdyff";
+    url = "https://pub.dartlang.org/packages/random_string/versions/2.3.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  saslprep = fetchzip {
+    sha256 = "04lss0xvm6p801p8306jdxg7k0b28kr6n65dz2f57dkca237kcw7";
+    url = "https://pub.dartlang.org/packages/saslprep/versions/1.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  shelf = fetchzip {
+    sha256 = "10yk98nadrgj5d3r3241kdaywjjs1j10mg8gacv80kg1mhcfdrxp";
+    url = "https://pub.dartlang.org/packages/shelf/versions/1.4.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  shelf_packages_handler = fetchzip {
+    sha256 = "1h8s42nff9ar0xn7yb42m64lpvmqzq8wranqrkkixdnp7w3pmv1x";
+    url = "https://pub.dartlang.org/packages/shelf_packages_handler/versions/3.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  shelf_static = fetchzip {
+    sha256 = "1bcqynn2z2syrigmrclxgg8hjhd1x9742938i62cicbaga6vclaz";
+    url = "https://pub.dartlang.org/packages/shelf_static/versions/1.1.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  shelf_web_socket = fetchzip {
+    sha256 = "110b5hrqwpnmq16shxxzjmcih5yfs5kh80dn8avfv0xj5iv7n94c";
+    url = "https://pub.dartlang.org/packages/shelf_web_socket/versions/1.0.4.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  source_gen = fetchzip {
+    sha256 = "1jql5zccv4vnbbvwcpyyvz8l27pg1rviqbp4vrks5313nf4b0kjg";
+    url = "https://pub.dartlang.org/packages/source_gen/versions/1.3.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  source_helper = fetchzip {
+    sha256 = "0mdd02vhcdcv9n58gzbx2q0bphwj0alz312ca1a8xpkf8jx3y8v4";
+    url = "https://pub.dartlang.org/packages/source_helper/versions/1.3.4.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  source_map_stack_trace = fetchzip {
+    sha256 = "0b5d4c5n5qd3j8n10gp1khhr508wfl3819bhk6xnl34qxz8n032k";
+    url = "https://pub.dartlang.org/packages/source_map_stack_trace/versions/2.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  source_maps = fetchzip {
+    sha256 = "004lcfka01agxjdw7zjhrffdkisvgx5s61b5gsl8qqk2jd1rswa7";
+    url = "https://pub.dartlang.org/packages/source_maps/versions/0.10.12.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  source_span = fetchzip {
+    sha256 = "1nybnf7l5chslp4fczhqnrgrhymy844lw7qrj6y08i626dshrd46";
+    url = "https://pub.dartlang.org/packages/source_span/versions/1.10.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  stack_trace = fetchzip {
+    sha256 = "0xpk2cvmgdh46iwip9jsb54fqx13jnina8pk03akxkmsxvag5izb";
+    url = "https://pub.dartlang.org/packages/stack_trace/versions/1.11.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  stream_channel = fetchzip {
+    sha256 = "0nrlw6zcscgnn6818krkbgs9qiv3f7q8pa7ljw1bqkrsb7xabm8s";
+    url = "https://pub.dartlang.org/packages/stream_channel/versions/2.1.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  stream_transform = fetchzip {
+    sha256 = "0jq6767v9ds17i2nd6mdd9i0f7nvsgg3dz74d0v54x66axjgr0gp";
+    url = "https://pub.dartlang.org/packages/stream_transform/versions/2.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  string_scanner = fetchzip {
+    sha256 = "0p1r0v2923avwfg03rk0pmc6f21m0zxpcx6i57xygd25k6hdfi00";
+    url = "https://pub.dartlang.org/packages/string_scanner/versions/1.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  synchronized = fetchzip {
+    sha256 = "1fx1z1p5qkn4qnq24riw5s86vmq645ppg8f74iyv2fc9rvr301ar";
+    url = "https://pub.dartlang.org/packages/synchronized/versions/3.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  term_glyph = fetchzip {
+    sha256 = "1x8nspxaccls0sxjamp703yp55yxdvhj6wg21lzwd296i9rwlxh9";
+    url = "https://pub.dartlang.org/packages/term_glyph/versions/1.2.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  test = fetchzip {
+    sha256 = "002phlj2pg6nll5hv449izxbqk29zwmwc77d0jx2iimz18dgy2r5";
+    url = "https://pub.dartlang.org/packages/test/versions/1.24.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  test_api = fetchzip {
+    sha256 = "0as1xcywjrd2zax3cm56qmnac12shf8c1ynnzzjwnggm23f61dxb";
+    url = "https://pub.dartlang.org/packages/test_api/versions/0.6.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  test_core = fetchzip {
+    sha256 = "1cx2rmz1xzk5z5yh8fpbsrsz4mgjanrw4xvnp0qzdnm2d7vhaq0y";
+    url = "https://pub.dartlang.org/packages/test_core/versions/0.5.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  timing = fetchzip {
+    sha256 = "15jvxsw7v0gwbdlykma60l1qlhlzb3brh6m0sg2bgbfir4l5s9gw";
+    url = "https://pub.dartlang.org/packages/timing/versions/1.0.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  typed_data = fetchzip {
+    sha256 = "0q6ggc52vfpr8kqaq69h757wy942hvgshhnsr2pjdinb4zk2sxl1";
+    url = "https://pub.dartlang.org/packages/typed_data/versions/1.3.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  unorm_dart = fetchzip {
+    sha256 = "05kyk2764yz14pzgx00i7h5b1lzh8kjqnxspfzyf8z920bcgbz0v";
+    url = "https://pub.dartlang.org/packages/unorm_dart/versions/0.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  uuid = fetchzip {
+    sha256 = "1nh1hxfr6bhyadqqcxrpwrphmm75f1iq4rzfjdwa2486xwlh7vx3";
+    url = "https://pub.dartlang.org/packages/uuid/versions/3.0.7.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  very_good_analysis = fetchzip {
+    sha256 = "1p2dh8aahbqyyqfzbsxswafgxnmxgisjq2xfp008skyh7imk6sz4";
+    url = "https://pub.dartlang.org/packages/very_good_analysis/versions/3.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  vm_service = fetchzip {
+    sha256 = "15ail7rbaq9ksg73cc0mw2k5imbiidl95yfd4v49k81gp5xmj92w";
+    url = "https://pub.dartlang.org/packages/vm_service/versions/11.10.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  watcher = fetchzip {
+    sha256 = "1sk7gvwa7s0h4l652qrgbh7l8wyqc6nr6lki8m4rj55720p0fnyg";
+    url = "https://pub.dartlang.org/packages/watcher/versions/1.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  web_socket_channel = fetchzip {
+    sha256 = "0f9441c4zifb5qadpjg319dcilimpkdhfacnkl543802bf8qjn4w";
+    url = "https://pub.dartlang.org/packages/web_socket_channel/versions/2.4.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  webkit_inspection_protocol = fetchzip {
+    sha256 = "0z400dzw7gf68a3wm95xi2mf461iigkyq6x69xgi7qs3fvpmn3hx";
+    url = "https://pub.dartlang.org/packages/webkit_inspection_protocol/versions/1.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  xml = fetchzip {
+    sha256 = "120azx71gazvrrn07vd83vrffzrhsqnmf9rdjxl73rra9py8ixiy";
+    url = "https://pub.dartlang.org/packages/xml/versions/6.3.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  yaml = fetchzip {
+    sha256 = "0awh9dynbhrlq8zgszaiyxbyyn9b6wyps1zww4z2lx62nbma0pda";
+    url = "https://pub.dartlang.org/packages/yaml/versions/3.1.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pubCache = runCommand "moxxmpp-pub-cache" {} ''
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${_fe_analyzer_shared} $out/hosted/pub.dev/_fe_analyzer_shared-61.0.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${analyzer} $out/hosted/pub.dev/analyzer-5.13.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${args} $out/hosted/pub.dev/args-2.4.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${async} $out/hosted/pub.dev/async-2.11.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${boolean_selector} $out/hosted/pub.dev/boolean_selector-2.1.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${build} $out/hosted/pub.dev/build-2.3.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${build_config} $out/hosted/pub.dev/build_config-1.1.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${build_daemon} $out/hosted/pub.dev/build_daemon-3.1.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${build_resolvers} $out/hosted/pub.dev/build_resolvers-2.3.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${build_runner} $out/hosted/pub.dev/build_runner-2.3.3
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${build_runner_core} $out/hosted/pub.dev/build_runner_core-7.2.7+1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${built_collection} $out/hosted/pub.dev/built_collection-5.1.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${built_value} $out/hosted/pub.dev/built_value-8.6.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${checked_yaml} $out/hosted/pub.dev/checked_yaml-2.0.3
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${code_builder} $out/hosted/pub.dev/code_builder-4.6.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${collection} $out/hosted/pub.dev/collection-1.18.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${convert} $out/hosted/pub.dev/convert-3.1.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${coverage} $out/hosted/pub.dev/coverage-1.6.3
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${crypto} $out/hosted/pub.dev/crypto-3.0.3
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${cryptography} $out/hosted/pub.dev/cryptography-2.5.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${dart_style} $out/hosted/pub.dev/dart_style-2.3.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${file} $out/hosted/pub.dev/file-6.1.4
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${fixnum} $out/hosted/pub.dev/fixnum-1.1.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${frontend_server_client} $out/hosted/pub.dev/frontend_server_client-3.2.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${glob} $out/hosted/pub.dev/glob-2.1.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${graphs} $out/hosted/pub.dev/graphs-2.3.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${hex} $out/hosted/pub.dev/hex-0.2.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${http_multi_server} $out/hosted/pub.dev/http_multi_server-3.2.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${http_parser} $out/hosted/pub.dev/http_parser-4.0.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${io} $out/hosted/pub.dev/io-1.0.4
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${js} $out/hosted/pub.dev/js-0.6.7
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${json_annotation} $out/hosted/pub.dev/json_annotation-4.8.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${json_serializable} $out/hosted/pub.dev/json_serializable-6.6.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${logging} $out/hosted/pub.dev/logging-1.2.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${matcher} $out/hosted/pub.dev/matcher-0.12.16
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${meta} $out/hosted/pub.dev/meta-1.9.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${mime} $out/hosted/pub.dev/mime-1.0.4
+
+    mkdir -p $out/hosted/git.polynom.me%47api%47packages%47Moxxy%47pub%47
+    ln -s ${moxlib} $out/hosted/git.polynom.me%47api%47packages%47Moxxy%47pub%47/moxlib-0.2.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${node_preamble} $out/hosted/pub.dev/node_preamble-2.0.2
+
+    mkdir -p $out/hosted/git.polynom.me%47api%47packages%47PapaTutuWawa%47pub%47
+    ln -s ${omemo_dart} $out/hosted/git.polynom.me%47api%47packages%47PapaTutuWawa%47pub%47/omemo_dart-0.5.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${package_config} $out/hosted/pub.dev/package_config-2.1.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${path} $out/hosted/pub.dev/path-1.8.3
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${pedantic} $out/hosted/pub.dev/pedantic-1.11.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${petitparser} $out/hosted/pub.dev/petitparser-5.4.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${pinenacl} $out/hosted/pub.dev/pinenacl-0.5.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${pool} $out/hosted/pub.dev/pool-1.5.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${protobuf} $out/hosted/pub.dev/protobuf-2.1.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${protoc_plugin} $out/hosted/pub.dev/protoc_plugin-20.0.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${pub_semver} $out/hosted/pub.dev/pub_semver-2.1.4
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${pubspec_parse} $out/hosted/pub.dev/pubspec_parse-1.2.3
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${random_string} $out/hosted/pub.dev/random_string-2.3.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${saslprep} $out/hosted/pub.dev/saslprep-1.0.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${shelf} $out/hosted/pub.dev/shelf-1.4.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${shelf_packages_handler} $out/hosted/pub.dev/shelf_packages_handler-3.0.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${shelf_static} $out/hosted/pub.dev/shelf_static-1.1.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${shelf_web_socket} $out/hosted/pub.dev/shelf_web_socket-1.0.4
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${source_gen} $out/hosted/pub.dev/source_gen-1.3.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${source_helper} $out/hosted/pub.dev/source_helper-1.3.4
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${source_map_stack_trace} $out/hosted/pub.dev/source_map_stack_trace-2.1.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${source_maps} $out/hosted/pub.dev/source_maps-0.10.12
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${source_span} $out/hosted/pub.dev/source_span-1.10.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${stack_trace} $out/hosted/pub.dev/stack_trace-1.11.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${stream_channel} $out/hosted/pub.dev/stream_channel-2.1.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${stream_transform} $out/hosted/pub.dev/stream_transform-2.1.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${string_scanner} $out/hosted/pub.dev/string_scanner-1.2.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${synchronized} $out/hosted/pub.dev/synchronized-3.1.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${term_glyph} $out/hosted/pub.dev/term_glyph-1.2.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${test} $out/hosted/pub.dev/test-1.24.3
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${test_api} $out/hosted/pub.dev/test_api-0.6.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${test_core} $out/hosted/pub.dev/test_core-0.5.3
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${timing} $out/hosted/pub.dev/timing-1.0.1
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${typed_data} $out/hosted/pub.dev/typed_data-1.3.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${unorm_dart} $out/hosted/pub.dev/unorm_dart-0.2.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${uuid} $out/hosted/pub.dev/uuid-3.0.7
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${very_good_analysis} $out/hosted/pub.dev/very_good_analysis-3.1.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${vm_service} $out/hosted/pub.dev/vm_service-11.10.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${watcher} $out/hosted/pub.dev/watcher-1.0.2
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${web_socket_channel} $out/hosted/pub.dev/web_socket_channel-2.4.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${webkit_inspection_protocol} $out/hosted/pub.dev/webkit_inspection_protocol-1.2.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${xml} $out/hosted/pub.dev/xml-6.3.0
+
+    mkdir -p $out/hosted/pub.dev
+    ln -s ${yaml} $out/hosted/pub.dev/yaml-3.1.2
+'';
+
+}

packages/moxxmpp/CHANGELOG.md

@@ -1,3 +1,48 @@
+## 0.4.0
+
+- **BREAKING**: Remove `lastResource` from `XmppConnection`'s `connect` method. Instead, set the `StreamManagementNegotiator`'s `resource` attribute instead. Since the resource can only really be restored by stream management, this is no issue.
+- **BREAKING**: Changed order of parameters of `CryptographicHashManager.hashFromData`
+- **BREAKING**: Removed support for XEP-0414, as the (supported) hash computations are already implemented by `CryptographicHashManager.hashFromData`.
+- The `DiscoManager` now only handled entity capabilities if a `EntityCapabilityManager` is registered.
+- The `EntityCapabilityManager` now verifies and validates its data before caching.
+- **BREAKING**: Added the `resumed` parameter to `StreamNegotiationsDoneEvent`. Use this to check if the current stream is new or resumed instead of using the `ConnectionStateChangedEvent`.
+- **BREAKING**: Remove `DiscoManager.discoInfoCapHashQuery`.
+- **BREAKING**: The entity argument of `DiscoManager.discoInfoQuery` and `DiscoManager.discoItemsQuery` are now `JID` instead of `String`.
+- **BREAKING**: `PubSubManager` and `UserAvatarManager` now use `JID` instead of `String`.
+- **BREAKING**: `XmppConnection.sendStanza` not only takes a `StanzaDetails` argument.
+- Sent stanzas are now kept in a queue until sent.
+- **BREAKING**: `MessageManager.sendMessage` does not use `MessageDetails` anymore. Instead, use `TypedMap`.
+- `MessageManager` now allows registering callbacks for adding data whenever a message is sent.
+- **BREAKING**: `MessageEvent` now makes use of `TypedMap`.
+- **BREAKING**: Removed `PresenceReceivedEvent`. Use a manager registering handlers with priority greater than `[PresenceManager.presenceHandlerPriority]` instead.
+- **BREAKING**: `ChatState.toString()` is now `ChatState.toName()`
+- **BREAKING**: Overriding `BaseOmemoManager` is no longer required. `OmemoManager` now takes callback methods instead.
+- Removed `ErrorResponseDiscoError` from the possible XEP-0030 errors.
+- **BREAKING**: Removed "Extensible File Thumbnails" (The `Thumbnail` type).
+- *BREAKING*: Rename `UserAvatarManager`'s `getUserAvatar` to `getUserAvatarData`. It now also requires the id of the avatar to fetch
+- *BREAKING*: `UserAvatarManager`'s `getAvatarId` with `getLatestMetadata`.
+- The `PubSubManager` now supports PubSub's `max_items` in `getItems`.
+- *BREAKING*: `vCardManager`'s `VCardAvatarUpdatedEvent` no longer automatically requests the newest VCard avatar.
+- *BREAKING*: `XmppConnection` now tries to ensure that incoming data is processed in-order. The only exception are awaited stanzas as they are allowed to bypass the queue.
+- *BREAKING*: If a stanza handler causes an exception, the handler is simply skipped while processing.
+- Add better logging around what stanza handler is running and if they end processing early.
+
+## 0.3.1
+
+- Fix some issues with running moxxmpp as a component
+
+## 0.3.0
+
+- **BREAKING**: Removed `connectAwaitable` and merged it with `connect`.
+- **BREAKING**: Removed `allowPlainAuth` from `ConnectionSettings`. If you don't want to use SASL PLAIN, don't register the negotiator. If you want to only conditionally use SASL PLAIN, extend the `SaslPlainNegotiator` and override its `matchesFeature` method to only call the super method when SASL PLAIN should be used.
+- **BREAKING**: The user avatar's `subscribe` and `unsubscribe` no longer subscribe to the `:data` PubSub nodes
+- Renamed `ResourceBindingSuccessEvent` to `ResourceBoundEvent`
+- **BREAKING**: Removed `isFeatureSupported` from the manager attributes. The managers now all have a method `isFeatureSupported` that works the same
+- The `PresenceManager` is now optional
+- **BREAKING**: Removed `setConnectionSettings` and `getConnectionSettings`. Just directly acces the `connectionSettings` field.
+- Implement XEP-0114 for implementing components
+- **BREAKING**: Remove `useDirectTLS` from `ConnectionSettings`
+
 ## 0.1.6+1
 
  - **FIX**: Fix LMC not working.

packages/moxxmpp/README.md

@@ -9,9 +9,11 @@ Include the following as a dependency in your pubspec file:
 ```
  moxxmpp:
     hosted: https://git.polynom.me/api/packages/Moxxy/pub
-    version: 0.1.6+1
+    version: 0.3.1
 ```
 
+You can find the documentation [here](https://moxxy.org/developers/docs/moxxmpp/).
+
 ## License
 
 See `./LICENSE`.

packages/moxxmpp/integration_test/failure_reconnection_test.dart

@@ -1,98 +0,0 @@
-import 'package:logging/logging.dart';
-import 'package:moxxmpp/moxxmpp.dart';
-import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
-import 'package:test/test.dart';
-
-void main() {
-  Logger.root.level = Level.ALL;
-  Logger.root.onRecord.listen((record) {
-    print('${record.level.name}: ${record.time}: ${record.message}');
-  });
-  final log = Logger('FailureReconnectionTest');
-
-  test('Failing an awaited connection with TestingSleepReconnectionPolicy', () async {
-    var errors = 0;
-    final connection = XmppConnection(
-      TestingSleepReconnectionPolicy(10),
-      TCPSocketWrapper(false),
-    );
-    connection.registerFeatureNegotiators([
-      StartTlsNegotiator(),
-    ]);
-    connection.registerManagers([
-      DiscoManager(),
-      RosterManager(),
-      PingManager(),
-      MessageManager(),
-      PresenceManager('http://moxxmpp.example'),
-    ]);
-    connection.asBroadcastStream().listen((event) {
-      if (event is ConnectionStateChangedEvent) {
-        if (event.state == XmppConnectionState.error) {
-          errors++;
-        }
-      }
-    });
-
-    connection.setConnectionSettings(
-      ConnectionSettings(
-        jid: JID.fromString('testuser@no-sasl.badxmpp.eu'),
-        password: 'abc123',
-        useDirectTLS: true,
-        allowPlainAuth: true,
-      ),
-    );
-
-    final result = await connection.connectAwaitable();
-    log.info('Connection failed as expected');
-    expect(result.success, false);
-    expect(errors, 1);
-
-    log.info('Waiting 20 seconds for unexpected reconnections');
-    await Future.delayed(const Duration(seconds: 20));
-    expect(errors, 1);
-  }, timeout: Timeout.factor(2));
-
-  test('Failing an awaited connection with ExponentialBackoffReconnectionPolicy', () async {
-    var errors = 0;
-    final connection = XmppConnection(
-      ExponentialBackoffReconnectionPolicy(1),
-      TCPSocketWrapper(false),
-    );
-    connection.registerFeatureNegotiators([
-      StartTlsNegotiator(),
-    ]);
-    connection.registerManagers([
-      DiscoManager(),
-      RosterManager(),
-      PingManager(),
-      MessageManager(),
-      PresenceManager('http://moxxmpp.example'),
-    ]);
-    connection.asBroadcastStream().listen((event) {
-      if (event is ConnectionStateChangedEvent) {
-        if (event.state == XmppConnectionState.error) {
-          errors++;
-        }
-      }
-    });
-
-    connection.setConnectionSettings(
-      ConnectionSettings(
-        jid: JID.fromString('testuser@no-sasl.badxmpp.eu'),
-        password: 'abc123',
-        useDirectTLS: true,
-        allowPlainAuth: true,
-      ),
-    );
-
-    final result = await connection.connectAwaitable();
-    log.info('Connection failed as expected');
-    expect(result.success, false);
-    expect(errors, 1);
-
-    log.info('Waiting 20 seconds for unexpected reconnections');
-    await Future.delayed(const Duration(seconds: 20));
-    expect(errors, 1);
-  }, timeout: Timeout.factor(2));
-}

packages/moxxmpp/lib/moxxmpp.dart

@@ -1,9 +1,13 @@
 library moxxmpp;
 
 export 'package:moxxmpp/src/connection.dart';
+export 'package:moxxmpp/src/connection_errors.dart';
 export 'package:moxxmpp/src/connectivity.dart';
 export 'package:moxxmpp/src/errors.dart';
 export 'package:moxxmpp/src/events.dart';
+export 'package:moxxmpp/src/handlers/base.dart';
+export 'package:moxxmpp/src/handlers/client.dart';
+export 'package:moxxmpp/src/handlers/component.dart';
 export 'package:moxxmpp/src/iq.dart';
 export 'package:moxxmpp/src/jid.dart';
 export 'package:moxxmpp/src/managers/attributes.dart';
@@ -14,20 +18,19 @@ export 'package:moxxmpp/src/managers/namespaces.dart';
 export 'package:moxxmpp/src/managers/priorities.dart';
 export 'package:moxxmpp/src/message.dart';
 export 'package:moxxmpp/src/namespaces.dart';
-export 'package:moxxmpp/src/negotiators/manager.dart';
 export 'package:moxxmpp/src/negotiators/namespaces.dart';
 export 'package:moxxmpp/src/negotiators/negotiator.dart';
-export 'package:moxxmpp/src/negotiators/resource_binding.dart';
-export 'package:moxxmpp/src/negotiators/sasl/errors.dart';
-export 'package:moxxmpp/src/negotiators/sasl/negotiator.dart';
-export 'package:moxxmpp/src/negotiators/sasl/plain.dart';
-export 'package:moxxmpp/src/negotiators/sasl/scram.dart';
-export 'package:moxxmpp/src/negotiators/starttls.dart';
 export 'package:moxxmpp/src/ping.dart';
 export 'package:moxxmpp/src/presence.dart';
 export 'package:moxxmpp/src/reconnect.dart';
 export 'package:moxxmpp/src/rfcs/rfc_2782.dart';
 export 'package:moxxmpp/src/rfcs/rfc_4790.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/resource_binding.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/sasl/errors.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/sasl/negotiator.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/sasl/plain.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/sasl/scram.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/starttls.dart';
 export 'package:moxxmpp/src/roster/errors.dart';
 export 'package:moxxmpp/src/roster/roster.dart';
 export 'package:moxxmpp/src/roster/state.dart';
@@ -35,14 +38,18 @@ export 'package:moxxmpp/src/settings.dart';
 export 'package:moxxmpp/src/socket.dart';
 export 'package:moxxmpp/src/stanza.dart';
 export 'package:moxxmpp/src/stringxml.dart';
-export 'package:moxxmpp/src/types/result.dart';
-export 'package:moxxmpp/src/xeps/staging/extensible_file_thumbnails.dart';
+export 'package:moxxmpp/src/util/typed_map.dart';
+export 'package:moxxmpp/src/xeps/staging/fast.dart';
 export 'package:moxxmpp/src/xeps/staging/file_upload_notification.dart';
 export 'package:moxxmpp/src/xeps/xep_0004.dart';
 export 'package:moxxmpp/src/xeps/xep_0030/errors.dart';
 export 'package:moxxmpp/src/xeps/xep_0030/helpers.dart';
 export 'package:moxxmpp/src/xeps/xep_0030/types.dart';
 export 'package:moxxmpp/src/xeps/xep_0030/xep_0030.dart';
+export 'package:moxxmpp/src/xeps/xep_0045/errors.dart';
+export 'package:moxxmpp/src/xeps/xep_0045/events.dart';
+export 'package:moxxmpp/src/xeps/xep_0045/types.dart';
+export 'package:moxxmpp/src/xeps/xep_0045/xep_0045.dart';
 export 'package:moxxmpp/src/xeps/xep_0054.dart';
 export 'package:moxxmpp/src/xeps/xep_0060/errors.dart';
 export 'package:moxxmpp/src/xeps/xep_0060/helpers.dart';
@@ -58,6 +65,7 @@ export 'package:moxxmpp/src/xeps/xep_0198/nonzas.dart';
 export 'package:moxxmpp/src/xeps/xep_0198/state.dart';
 export 'package:moxxmpp/src/xeps/xep_0198/xep_0198.dart';
 export 'package:moxxmpp/src/xeps/xep_0203.dart';
+export 'package:moxxmpp/src/xeps/xep_0264.dart';
 export 'package:moxxmpp/src/xeps/xep_0280.dart';
 export 'package:moxxmpp/src/xeps/xep_0297.dart';
 export 'package:moxxmpp/src/xeps/xep_0300.dart';
@@ -75,7 +83,12 @@ export 'package:moxxmpp/src/xeps/xep_0384/helpers.dart';
 export 'package:moxxmpp/src/xeps/xep_0384/types.dart';
 export 'package:moxxmpp/src/xeps/xep_0384/xep_0384.dart';
 export 'package:moxxmpp/src/xeps/xep_0385.dart';
-export 'package:moxxmpp/src/xeps/xep_0414.dart';
+export 'package:moxxmpp/src/xeps/xep_0386.dart';
+export 'package:moxxmpp/src/xeps/xep_0388/errors.dart';
+export 'package:moxxmpp/src/xeps/xep_0388/negotiators.dart';
+export 'package:moxxmpp/src/xeps/xep_0388/user_agent.dart';
+export 'package:moxxmpp/src/xeps/xep_0388/xep_0388.dart';
+export 'package:moxxmpp/src/xeps/xep_0421.dart';
 export 'package:moxxmpp/src/xeps/xep_0424.dart';
 export 'package:moxxmpp/src/xeps/xep_0444.dart';
 export 'package:moxxmpp/src/xeps/xep_0446.dart';

packages/moxxmpp/lib/src/awaiter.dart

@@ -1,35 +1,13 @@
 import 'dart:async';
-import 'package:meta/meta.dart';
-import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/stringxml.dart';
 import 'package:synchronized/synchronized.dart';
 
-/// A surrogate key for awaiting stanzas.
-@immutable
-class _StanzaSurrogateKey {
-  const _StanzaSurrogateKey(this.sentTo, this.id, this.tag);
+/// (JID we sent a stanza to, the id of the sent stanza, the tag of the sent stanza).
+// ignore: avoid_private_typedef_functions
+typedef _StanzaCompositeKey = (String?, String, String);
 
-  /// The JID the original stanza was sent to. We expect the result to come from the
-  /// same JID.
-  final String sentTo;
-
-  /// The ID of the original stanza. We expect the result to have the same ID.
-  final String id;
-
-  /// The tag name of the stanza.
-  final String tag;
-  
-  @override
-  int get hashCode => sentTo.hashCode ^ id.hashCode ^ tag.hashCode;
-
-  @override
-  bool operator==(Object other) {
-    return other is _StanzaSurrogateKey &&
-           other.sentTo == sentTo &&
-           other.id == id &&
-           other.tag == tag;
-  }
-}
+/// Callback function that returns the bare JID of the connection as a String.
+typedef GetBareJidCallback = String Function();
 
 /// This class handles the await semantics for stanzas. Stanzas are given a "unique"
 /// key equal to the tuple (to, id, tag) with which their response is identified.
@@ -40,8 +18,12 @@ class _StanzaSurrogateKey {
 ///
 /// This class also handles some "edge cases" of RFC 6120, like an empty "from" attribute.
 class StanzaAwaiter {
+  StanzaAwaiter(this._bareJidCallback);
+
+  final GetBareJidCallback _bareJidCallback;
+
   /// The pending stanzas, identified by their surrogate key.
-  final Map<_StanzaSurrogateKey, Completer<XMLNode>> _pending = {};
+  final Map<_StanzaCompositeKey, Completer<XMLNode>> _pending = {};
 
   /// The critical section for accessing [StanzaAwaiter._pending].
   final Lock _lock = Lock();
@@ -52,30 +34,33 @@ class StanzaAwaiter {
   /// [tag] is the stanza's tag name.
   ///
   /// Returns a future that might resolve to the response to the stanza.
-  Future<Future<XMLNode>> addPending(String to, String id, String tag) async {
+  Future<Future<XMLNode>> addPending(String? to, String id, String tag) async {
+    // Check if we want to send a stanza to our bare JID and replace it with null.
+    final processedTo = to != null && to == _bareJidCallback() ? null : to;
+
     final completer = await _lock.synchronized(() {
       final completer = Completer<XMLNode>();
-      _pending[_StanzaSurrogateKey(to, id, tag)] = completer;
+      _pending[(processedTo, id, tag)] = completer;
       return completer;
     });
 
     return completer.future;
   }
 
-  /// Checks if the stanza [stanza] is being awaited. [bareJid] is the bare JID of
-  /// the connection.
+  /// Checks if the stanza [stanza] is being awaited.
   /// If [stanza] is awaited, resolves the future and returns true. If not, returns
   /// false.
-  Future<bool> onData(XMLNode stanza, JID bareJid) async {
-    assert(bareJid.isBare(), 'bareJid must be bare');
-
+  Future<bool> onData(XMLNode stanza) async {
     final id = stanza.attributes['id'] as String?;
     if (id == null) return false;
 
-    final key = _StanzaSurrogateKey(
-      // Section 8.1.2.1 § 3 of RFC 6120 says that an empty "from" indicates that the
-      // attribute is implicitly from our own bare JID.
-      stanza.attributes['from'] as String? ?? bareJid.toString(),
+    // Check if we want to send a stanza to our bare JID and replace it with null.
+    final from = stanza.attributes['from'] as String?;
+    final processedFrom =
+        from != null && from == _bareJidCallback() ? null : from;
+
+    final key = (
+      processedFrom,
       id,
       stanza.tag,
     );
@@ -91,4 +76,19 @@ class StanzaAwaiter {
       return false;
     });
   }
+
+  /// Checks if [stanza] represents a stanza that is awaited. Returns true, if [stanza]
+  /// is awaited. False, if not.
+  Future<bool> isAwaited(XMLNode stanza) async {
+    final id = stanza.attributes['id'] as String?;
+    if (id == null) return false;
+
+    final key = (
+      stanza.attributes['from'] as String?,
+      id,
+      stanza.tag,
+    );
+
+    return _lock.synchronized(() => _pending.containsKey(key));
+  }
 }

packages/moxxmpp/lib/src/buffer.dart

@@ -1,27 +0,0 @@
-import 'dart:async';
-
-import 'package:moxxmpp/src/stringxml.dart';
-
-import 'package:xml/xml.dart';
-import 'package:xml/xml_events.dart';
-
-class XmlStreamBuffer extends StreamTransformerBase<String, XMLNode> {
-
-  XmlStreamBuffer() : _streamController = StreamController(), _decoder = const XmlNodeDecoder();
-  final StreamController<XMLNode> _streamController;
-  final XmlNodeDecoder _decoder;
-
-  @override
-  Stream<XMLNode> bind(Stream<String> stream) {
-    stream.toXmlEvents().selectSubtreeEvents((event) {
-      return event.qualifiedName != 'stream:stream';
-    }).transform(_decoder).listen((nodes) {
-      for (final node in nodes) {
-        if (node.nodeType == XmlNodeType.ELEMENT) {
-          _streamController.add(XMLNode.fromXmlElement(node as XmlElement));
-        }
-      }
-    });
-    return _streamController.stream;
-  }
-}

packages/moxxmpp/lib/src/connection_errors.dart

@@ -0,0 +1,60 @@
+import 'package:moxxmpp/src/errors.dart';
+import 'package:moxxmpp/src/negotiators/negotiator.dart';
+
+/// The reason a call to `XmppConnection.connect` failed.
+abstract class XmppConnectionError extends XmppError {}
+
+/// Returned by `XmppConnection.connect` when a negotiator returned an unrecoverable
+/// error. Only returned when waitUntilLogin is true.
+class NegotiatorReturnedError extends XmppConnectionError {
+  NegotiatorReturnedError(this.error);
+
+  @override
+  bool isRecoverable() => error.isRecoverable();
+
+  /// The error returned by the negotiator.
+  final NegotiatorError error;
+}
+
+class StreamFailureError extends XmppConnectionError {
+  StreamFailureError(this.error);
+
+  @override
+  bool isRecoverable() => error.isRecoverable();
+
+  /// The error that causes a connection failure.
+  final XmppError error;
+}
+
+/// Returned by `XmppConnection.connect` when no connection could
+/// be established.
+class NoConnectionPossibleError extends XmppConnectionError {
+  @override
+  bool isRecoverable() => true;
+}
+
+/// Returned if no matching authentication mechanism has been presented
+class NoMatchingAuthenticationMechanismAvailableError
+    extends XmppConnectionError {
+  @override
+  bool isRecoverable() => false;
+}
+
+/// Returned if no negotiator was picked, even though negotiations are not done
+/// yet.
+class NoAuthenticatorAvailableError extends XmppConnectionError {
+  @override
+  bool isRecoverable() => false;
+}
+
+/// Returned by the negotiation handler if unexpected data has been received
+class UnexpectedDataError extends XmppConnectionError {
+  @override
+  bool isRecoverable() => false;
+}
+
+/// Returned by the ComponentToServerNegotiator if the handshake is not successful.
+class InvalidHandshakeCredentialsError extends XmppConnectionError {
+  @override
+  bool isRecoverable() => false;
+}

packages/moxxmpp/lib/src/errors.dart

@@ -1,20 +1,30 @@
 import 'package:moxxmpp/src/socket.dart';
 
 /// An internal error class
-abstract class XmppError {}
-
-/// Returned if we could not establish a TCP connection
-/// to the server.
-class NoConnectionError extends XmppError {}
+// ignore: one_member_abstracts
+abstract class XmppError {
+  /// Return true if we can recover from the error by attempting a reconnection.
+  bool isRecoverable();
+}
 
 /// Returned if a socket error occured
 class SocketError extends XmppError {
   SocketError(this.event);
   final XmppSocketErrorEvent event;
+
+  @override
+  bool isRecoverable() => true;
 }
 
 /// Returned if we time out
-class TimeoutError extends XmppError {}
+class TimeoutError extends XmppError {
+  @override
+  bool isRecoverable() => true;
+}
 
 /// Returned if we received a stream error
-class StreamError extends XmppError {}
+class StreamError extends XmppError {
+  // TODO(PapaTutuWawa): Be more precise
+  @override
+  bool isRecoverable() => true;
+}

packages/moxxmpp/lib/src/events.dart

@@ -1,30 +1,29 @@
 import 'package:moxxmpp/src/connection.dart';
+import 'package:moxxmpp/src/errors.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/data.dart';
 import 'package:moxxmpp/src/roster/roster.dart';
 import 'package:moxxmpp/src/stanza.dart';
+import 'package:moxxmpp/src/util/typed_map.dart';
 import 'package:moxxmpp/src/xeps/xep_0030/types.dart';
 import 'package:moxxmpp/src/xeps/xep_0060/xep_0060.dart';
-import 'package:moxxmpp/src/xeps/xep_0066.dart';
-import 'package:moxxmpp/src/xeps/xep_0085.dart';
-import 'package:moxxmpp/src/xeps/xep_0334.dart';
-import 'package:moxxmpp/src/xeps/xep_0359.dart';
-import 'package:moxxmpp/src/xeps/xep_0385.dart';
-import 'package:moxxmpp/src/xeps/xep_0424.dart';
-import 'package:moxxmpp/src/xeps/xep_0444.dart';
-import 'package:moxxmpp/src/xeps/xep_0446.dart';
-import 'package:moxxmpp/src/xeps/xep_0447.dart';
-import 'package:moxxmpp/src/xeps/xep_0461.dart';
+import 'package:moxxmpp/src/xeps/xep_0084.dart';
+import 'package:moxxmpp/src/xeps/xep_0333.dart';
 
 abstract class XmppEvent {}
 
 /// Triggered when the connection state of the XmppConnection has
 /// changed.
 class ConnectionStateChangedEvent extends XmppEvent {
-  ConnectionStateChangedEvent(this.state, this.before, this.resumed);
+  ConnectionStateChangedEvent(this.state, this.before);
   final XmppConnectionState before;
   final XmppConnectionState state;
-  final bool resumed;
+
+  /// Indicates whether the connection state switched from a not connected state to a
+  /// connected state.
+  bool get connectionEstablished =>
+      before != XmppConnectionState.connected &&
+      state == XmppConnectionState.connected;
 }
 
 /// Triggered when we encounter a stream error.
@@ -42,9 +41,6 @@ class AuthenticationFailedEvent extends XmppEvent {
 /// Triggered after the SASL authentication has succeeded.
 class AuthenticationSuccessEvent extends XmppEvent {}
 
-/// Triggered when we want to ping the connection open
-class SendPingEvent extends XmppEvent {}
-
 /// Triggered when the stream resumption was successful
 class StreamResumedEvent extends XmppEvent {
   StreamResumedEvent({required this.h});
@@ -71,58 +67,42 @@ class RosterUpdatedEvent extends XmppEvent {
 
 /// Triggered when a message is received
 class MessageEvent extends XmppEvent {
-  MessageEvent({
-    required this.body,
-    required this.fromJid,
-    required this.toJid,
-    required this.sid,
-    required this.stanzaId,
-    required this.isCarbon,
-    required this.deliveryReceiptRequested,
-    required this.isMarkable,
-    required this.encrypted,
-    required this.other,
-    this.error,
+  MessageEvent(
+    this.from,
+    this.to,
+    this.encrypted,
+    this.extensions, {
+    this.id,
     this.type,
-    this.oob,
-    this.sfs,
-    this.sims,
-    this.reply,
-    this.chatState,
-    this.fun,
-    this.funReplacement,
-    this.funCancellation,
-    this.messageRetraction,
-    this.messageCorrectionId,
-    this.messageReactions,
-    this.messageProcessingHints,
-    this.stickerPackId,
+    this.error,
+    this.encryptionError,
   });
-  final StanzaError? error;
-  final String body;
-  final JID fromJid;
-  final JID toJid;
-  final String sid;
+
+  /// The from attribute of the message.
+  final JID from;
+
+  /// The to attribute of the message.
+  final JID to;
+
+  /// The id attribute of the message.
+  final String? id;
+
+  /// The type attribute of the message.
   final String? type;
-  final StableStanzaId stanzaId;
-  final bool isCarbon;
-  final bool deliveryReceiptRequested;
-  final bool isMarkable;
-  final OOBData? oob;
-  final StatelessFileSharingData? sfs;
-  final StatelessMediaSharingData? sims;
-  final ReplyData? reply;
-  final ChatState? chatState;
-  final FileMetadataData? fun;
-  final String? funReplacement;
-  final String? funCancellation;
+
+  final StanzaError? error;
+
+  /// Flag indicating whether the message was encrypted.
   final bool encrypted;
-  final MessageRetractionData? messageRetraction;
-  final String? messageCorrectionId;
-  final MessageReactions? messageReactions;
-  final List<MessageProcessingHint>? messageProcessingHints;
-  final String? stickerPackId;
-  final Map<String, dynamic> other;
+
+  /// The error in case an encryption error occurred.
+  final Object? encryptionError;
+
+  /// Data added by other handlers.
+  final TypedMap<StanzaHandlerExtension> extensions;
+
+  /// Shorthand for extensions.get<T>().
+  T? get<T>() => extensions.get<T>();
 }
 
 /// Triggered when a client responds to our delivery receipt request
@@ -133,13 +113,19 @@ class DeliveryReceiptReceivedEvent extends XmppEvent {
 }
 
 class ChatMarkerEvent extends XmppEvent {
-  ChatMarkerEvent({
-    required this.type,
-    required this.from,
-    required this.id,
-  });
+  ChatMarkerEvent(
+    this.from,
+    this.type,
+    this.id,
+  );
+
+  /// The entity that sent the chat marker.
   final JID from;
-  final String type;
+
+  /// The type of chat marker that was sent.
+  final ChatMarker type;
+
+  /// The id of the message that the marker applies to.
   final String id;
 }
 
@@ -156,16 +142,11 @@ class StreamManagementEnabledEvent extends XmppEvent {
 }
 
 /// Triggered when we bound a resource
-class ResourceBindingSuccessEvent extends XmppEvent {
-  ResourceBindingSuccessEvent({ required this.resource });
-  final String resource;
-}
+class ResourceBoundEvent extends XmppEvent {
+  ResourceBoundEvent(this.resource);
 
-/// Triggered when we receive presence
-class PresenceReceivedEvent extends XmppEvent {
-  PresenceReceivedEvent(this.jid, this.presence);
-  final JID jid;
-  final Stanza presence;
+  /// The resource that was just bound.
+  final String resource;
 }
 
 /// Triggered when we are starting an connection attempt
@@ -185,11 +166,31 @@ class SubscriptionRequestReceivedEvent extends XmppEvent {
   final JID from;
 }
 
-/// Triggered when we receive a new or updated avatar
-class AvatarUpdatedEvent extends XmppEvent {
-  AvatarUpdatedEvent({ required this.jid, required this.base64, required this.hash });
-  final String jid;
-  final String base64;
+/// Triggered when we receive a new or updated avatar via XEP-0084
+class UserAvatarUpdatedEvent extends XmppEvent {
+  UserAvatarUpdatedEvent(
+    this.jid,
+    this.metadata,
+  );
+
+  /// The JID of the user updating their avatar.
+  final JID jid;
+
+  /// The metadata of the avatar.
+  final List<UserAvatarMetadata> metadata;
+}
+
+/// Triggered when we receive a new or updated avatar via XEP-0054
+class VCardAvatarUpdatedEvent extends XmppEvent {
+  VCardAvatarUpdatedEvent(
+    this.jid,
+    this.hash,
+  );
+
+  /// The JID of the entity that updated their avatar.
+  final JID jid;
+
+  /// The SHA-1 hash of the avatar.
   final String hash;
 }
 
@@ -236,3 +237,21 @@ class OmemoDeviceListUpdatedEvent extends XmppEvent {
   final JID jid;
   final List<int> deviceList;
 }
+
+/// Triggered when a reconnection is not performed due to a non-recoverable
+/// error.
+class NonRecoverableErrorEvent extends XmppEvent {
+  NonRecoverableErrorEvent(this.error);
+
+  /// The error in question.
+  final XmppError error;
+}
+
+/// Triggered when the stream negotiations are done.
+class StreamNegotiationsDoneEvent extends XmppEvent {
+  StreamNegotiationsDoneEvent(this.resumed);
+
+  /// Flag indicating whether we resumed a previous stream (true) or are in a completely
+  /// new stream (false).
+  final bool resumed;
+}

packages/moxxmpp/lib/src/handlers/base.dart

@@ -0,0 +1,132 @@
+import 'package:logging/logging.dart';
+import 'package:meta/meta.dart';
+import 'package:moxxmpp/src/errors.dart';
+import 'package:moxxmpp/src/events.dart';
+import 'package:moxxmpp/src/negotiators/negotiator.dart';
+import 'package:moxxmpp/src/parser.dart';
+import 'package:moxxmpp/src/settings.dart';
+import 'package:moxxmpp/src/stringxml.dart';
+
+/// A callback for when the [NegotiationsHandler] is done.
+typedef NegotiationsDoneCallback = Future<void> Function();
+
+/// A callback for the case that an error occurs while negotiating.
+typedef ErrorCallback = Future<void> Function(XmppError);
+
+/// Return true if the current connection is authenticated. If not, return false.
+typedef IsAuthenticatedFunction = bool Function();
+
+/// Send a nonza on the stream
+typedef SendNonzaFunction = void Function(XMLNode);
+
+/// Returns the connection settings.
+typedef GetConnectionSettingsFunction = ConnectionSettings Function();
+
+/// Resets the stream parser's state.
+typedef ResetStreamParserFunction = void Function();
+
+/// This class implements the stream feature negotiation for XmppConnection.
+abstract class NegotiationsHandler {
+  @protected
+  late final Logger log;
+
+  /// Map of all negotiators registered against the handler.
+  @protected
+  final Map<String, XmppFeatureNegotiatorBase> negotiators = {};
+
+  /// Function that is called once the negotiator is done with its stream negotiations.
+  @protected
+  late final NegotiationsDoneCallback onNegotiationsDone;
+
+  /// XmppConnection's handleError method.
+  @protected
+  late final ErrorCallback handleError;
+
+  /// Returns true if the connection is authenticated. If not, returns false.
+  @protected
+  late final IsAuthenticatedFunction isAuthenticated;
+
+  /// Send a nonza over the stream.
+  @protected
+  late final SendNonzaFunction sendNonza;
+
+  /// Get the connection's settings.
+  @protected
+  late final GetConnectionSettingsFunction getConnectionSettings;
+
+  @protected
+  late final ResetStreamParserFunction resetStreamParser;
+
+  /// The id included in the last stream header.
+  @protected
+  String? streamId;
+
+  /// Set the id of the last stream header.
+  void setStreamHeaderId(String? id) {
+    streamId = id;
+  }
+
+  /// Returns, if registered, a negotiator with id [id].
+  T? getNegotiatorById<T extends XmppFeatureNegotiatorBase>(String id) =>
+      negotiators[id] as T?;
+
+  /// Register the parameters as the corresponding methods in this class. Also
+  /// initializes the logger.
+  void register(
+    NegotiationsDoneCallback onNegotiationsDone,
+    ErrorCallback handleError,
+    IsAuthenticatedFunction isAuthenticated,
+    SendNonzaFunction sendNonza,
+    GetConnectionSettingsFunction getConnectionSettings,
+    ResetStreamParserFunction resetStreamParser,
+  ) {
+    this.onNegotiationsDone = onNegotiationsDone;
+    this.handleError = handleError;
+    this.isAuthenticated = isAuthenticated;
+    this.sendNonza = sendNonza;
+    this.getConnectionSettings = getConnectionSettings;
+    this.resetStreamParser = resetStreamParser;
+    log = Logger(toString());
+  }
+
+  /// Returns the xmlns attribute that stanzas should have.
+  String getStanzaNamespace();
+
+  /// Registers the negotiator [negotiator] against this negotiations handler.
+  void registerNegotiator(XmppFeatureNegotiatorBase negotiator);
+
+  /// Sends the stream header.
+  void sendStreamHeader();
+
+  /// Runs the post-register callback of all negotiators.
+  Future<void> runPostRegisterCallback() async {
+    for (final negotiator in negotiators.values) {
+      await negotiator.postRegisterCallback();
+    }
+  }
+
+  Future<void> sendEventToNegotiators(XmppEvent event) async {
+    for (final negotiator in negotiators.values) {
+      await negotiator.onXmppEvent(event);
+    }
+  }
+
+  /// Remove [feature] from the stream features we are currently negotiating.
+  void removeNegotiatingFeature(String feature) {}
+
+  /// Resets all registered negotiators and the negotiation handler.
+  @mustCallSuper
+  void reset() {
+    streamId = null;
+    for (final negotiator in negotiators.values) {
+      negotiator.reset();
+    }
+  }
+
+  /// Called whenever the stream buffer outputs a new event [event].
+  Future<void> negotiate(XMPPStreamObject event) async {
+    if (event is XMPPStreamHeader) {
+      streamId = event.attributes['id'];
+    }
+  }
+}

packages/moxxmpp/lib/src/handlers/client.dart

@@ -0,0 +1,227 @@
+import 'package:meta/meta.dart';
+import 'package:moxxmpp/src/connection_errors.dart';
+import 'package:moxxmpp/src/handlers/base.dart';
+import 'package:moxxmpp/src/jid.dart';
+import 'package:moxxmpp/src/namespaces.dart';
+import 'package:moxxmpp/src/negotiators/negotiator.dart';
+import 'package:moxxmpp/src/parser.dart';
+import 'package:moxxmpp/src/stringxml.dart';
+
+/// "Nonza" describing the XMPP stream header of a client-to-server connection.
+class ClientStreamHeaderNonza extends XMLNode {
+  ClientStreamHeaderNonza(JID jid)
+      : super(
+          tag: 'stream:stream',
+          attributes: <String, String>{
+            'xmlns': stanzaXmlns,
+            'version': '1.0',
+            'xmlns:stream': streamXmlns,
+            'to': jid.domain,
+            'from': jid.toBare().toString(),
+            'xml:lang': 'en',
+          },
+          closeTag: false,
+        );
+}
+
+/// This class implements the stream feature negotiation for usage in client to server
+/// connections.
+class ClientToServerNegotiator extends NegotiationsHandler {
+  ClientToServerNegotiator() : super();
+
+  /// Cached list of stream features.
+  final List<XMLNode> _streamFeatures = List.empty(growable: true);
+
+  /// The currently active negotiator.
+  XmppFeatureNegotiatorBase? _currentNegotiator;
+
+  @override
+  String getStanzaNamespace() => stanzaXmlns;
+
+  @override
+  void registerNegotiator(XmppFeatureNegotiatorBase negotiator) {
+    negotiators[negotiator.id] = negotiator;
+  }
+
+  @override
+  void reset() {
+    super.reset();
+
+    // Prevent leaking the last active negotiator
+    _currentNegotiator = null;
+  }
+
+  @override
+  void removeNegotiatingFeature(String feature) {
+    _streamFeatures.removeWhere((node) {
+      return node.attributes['xmlns'] == feature;
+    });
+  }
+
+  @override
+  void sendStreamHeader() {
+    resetStreamParser();
+    sendNonza(
+      XMLNode(
+        tag: 'xml',
+        attributes: {'version': '1.0'},
+        closeTag: false,
+        isDeclaration: true,
+        children: [
+          ClientStreamHeaderNonza(getConnectionSettings().jid),
+        ],
+      ),
+    );
+  }
+
+  /// Returns true if all mandatory features in [features] have been negotiated.
+  /// Otherwise returns false.
+  bool _isMandatoryNegotiationDone(List<XMLNode> features) {
+    return features.every((XMLNode feature) {
+      return feature.firstTag('required') == null &&
+          feature.tag != 'mechanisms';
+    });
+  }
+
+  /// Returns true if we can still negotiate. Returns false if no negotiator is
+  /// matching and ready.
+  bool _isNegotiationPossible(List<XMLNode> features) {
+    return getNextNegotiator(features, log: false) != null;
+  }
+
+  /// Returns the next negotiator that matches [features]. Returns null if none can be
+  /// picked. If [log] is true, then the list of matching negotiators will be logged.
+  @visibleForTesting
+  XmppFeatureNegotiatorBase? getNextNegotiator(
+    List<XMLNode> features, {
+    bool log = true,
+  }) {
+    final matchingNegotiators =
+        negotiators.values.where((XmppFeatureNegotiatorBase negotiator) {
+      return negotiator.state == NegotiatorState.ready &&
+          negotiator.matchesFeature(features);
+    }).toList()
+          ..sort((a, b) => b.priority.compareTo(a.priority));
+
+    if (log) {
+      this.log.finest(
+            'List of matching negotiators: ${matchingNegotiators.map((a) => a.id)}',
+          );
+    }
+
+    if (matchingNegotiators.isEmpty) return null;
+
+    return matchingNegotiators.first;
+  }
+
+  Future<void> _executeCurrentNegotiator(XMLNode nonza) async {
+    // If we don't have a negotiator, get one
+    _currentNegotiator ??= getNextNegotiator(_streamFeatures);
+    if (_currentNegotiator == null &&
+        _isMandatoryNegotiationDone(_streamFeatures) &&
+        !_isNegotiationPossible(_streamFeatures)) {
+      log.finest('Negotiations done!');
+      await onNegotiationsDone();
+      return;
+    }
+
+    // If we don't have a next negotiator, we have to bail
+    if (_currentNegotiator == null &&
+        !_isMandatoryNegotiationDone(_streamFeatures) &&
+        !_isNegotiationPossible(_streamFeatures)) {
+      // We failed before authenticating
+      if (!isAuthenticated()) {
+        log.severe('No negotiator could be picked while unauthenticated');
+        await handleError(NoMatchingAuthenticationMechanismAvailableError());
+        return;
+      } else {
+        log.severe(
+          'No negotiator could be picked while negotiations are not done',
+        );
+        await handleError(NoAuthenticatorAvailableError());
+        return;
+      }
+    }
+
+    final result = await _currentNegotiator!.negotiate(nonza);
+    if (result.isType<NegotiatorError>()) {
+      log.severe('Negotiator returned an error');
+      await handleError(result.get<NegotiatorError>());
+      return;
+    }
+
+    final state = result.get<NegotiatorState>();
+    _currentNegotiator!.state = state;
+    switch (state) {
+      case NegotiatorState.ready:
+        return;
+      case NegotiatorState.done:
+        if (_currentNegotiator!.sendStreamHeaderWhenDone) {
+          _currentNegotiator = null;
+          _streamFeatures.clear();
+          sendStreamHeader();
+        } else {
+          removeNegotiatingFeature(_currentNegotiator!.negotiatingXmlns);
+          _currentNegotiator = null;
+
+          if (_isMandatoryNegotiationDone(_streamFeatures) &&
+              !_isNegotiationPossible(_streamFeatures)) {
+            log.finest('Negotiations done!');
+            await onNegotiationsDone();
+          } else {
+            _currentNegotiator = getNextNegotiator(_streamFeatures);
+            log.finest('Chose ${_currentNegotiator!.id} as next negotiator');
+
+            final fakeStanza = XMLNode(
+              tag: 'stream:features',
+              children: _streamFeatures,
+            );
+
+            await _executeCurrentNegotiator(fakeStanza);
+          }
+        }
+        break;
+      case NegotiatorState.retryLater:
+        log.finest('Negotiator wants to continue later. Picking new one...');
+        _currentNegotiator!.state = NegotiatorState.ready;
+
+        if (_isMandatoryNegotiationDone(_streamFeatures) &&
+            !_isNegotiationPossible(_streamFeatures)) {
+          log.finest('Negotiations done!');
+
+          await onNegotiationsDone();
+        } else {
+          log.finest('Picking new negotiator...');
+          _currentNegotiator = getNextNegotiator(_streamFeatures);
+          log.finest('Chose $_currentNegotiator as next negotiator');
+          final fakeStanza = XMLNode(
+            tag: 'stream:features',
+            children: _streamFeatures,
+          );
+          await _executeCurrentNegotiator(fakeStanza);
+        }
+        break;
+      case NegotiatorState.skipRest:
+        log.finest(
+          'Negotiator wants to skip the remaining negotiation... Negotiations (assumed) done!',
+        );
+
+        await onNegotiationsDone();
+        break;
+    }
+  }
+
+  @override
+  Future<void> negotiate(XMPPStreamObject event) async {
+    if (event is XMPPStreamElement) {
+      if (event.node.tag == 'stream:features') {
+        // Store the received stream features
+        _streamFeatures
+          ..clear()
+          ..addAll(event.node.children);
+      }
+
+      await _executeCurrentNegotiator(event.node);
+    }
+  }
+}

packages/moxxmpp/lib/src/handlers/component.dart

@@ -0,0 +1,121 @@
+import 'dart:convert';
+import 'package:cryptography/cryptography.dart';
+import 'package:hex/hex.dart';
+import 'package:moxxmpp/src/connection_errors.dart';
+import 'package:moxxmpp/src/handlers/base.dart';
+import 'package:moxxmpp/src/jid.dart';
+import 'package:moxxmpp/src/namespaces.dart';
+import 'package:moxxmpp/src/negotiators/negotiator.dart';
+import 'package:moxxmpp/src/parser.dart';
+import 'package:moxxmpp/src/stringxml.dart';
+
+/// Nonza describing the XMPP stream header.
+class ComponentStreamHeaderNonza extends XMLNode {
+  ComponentStreamHeaderNonza(JID jid)
+      : assert(jid.isBare(), 'Component JID must be bare'),
+        super(
+          tag: 'stream:stream',
+          attributes: <String, String>{
+            'xmlns': componentAcceptXmlns,
+            'xmlns:stream': streamXmlns,
+            'to': jid.domain,
+          },
+          closeTag: false,
+        );
+}
+
+/// The states the ComponentToServerNegotiator can be in.
+enum ComponentToServerState {
+  /// No data has been sent or received yet
+  idle,
+
+  /// Handshake has been sent
+  handshakeSent,
+}
+
+/// The ComponentToServerNegotiator is a NegotiationsHandler that allows writing
+/// components that adhere to XEP-0114.
+class ComponentToServerNegotiator extends NegotiationsHandler {
+  ComponentToServerNegotiator();
+
+  /// The state the negotiation handler is currently in
+  ComponentToServerState _state = ComponentToServerState.idle;
+
+  @override
+  String getStanzaNamespace() => componentAcceptXmlns;
+
+  @override
+  void registerNegotiator(XmppFeatureNegotiatorBase negotiator) {}
+
+  @override
+  void sendStreamHeader() {
+    resetStreamParser();
+    sendNonza(
+      XMLNode(
+        tag: 'xml',
+        attributes: {'version': '1.0'},
+        closeTag: false,
+        isDeclaration: true,
+        children: [
+          ComponentStreamHeaderNonza(getConnectionSettings().jid),
+        ],
+      ),
+    );
+  }
+
+  Future<String> _computeHandshake(String id) async {
+    final secret = getConnectionSettings().password;
+    return HEX.encode(
+      (await Sha1().hash(utf8.encode('$streamId$secret'))).bytes,
+    );
+  }
+
+  @override
+  Future<void> negotiate(XMPPStreamObject event) async {
+    switch (_state) {
+      case ComponentToServerState.idle:
+        if (event is XMPPStreamHeader) {
+          streamId = event.attributes['id'];
+          assert(
+            streamId != null,
+            'The server must respond with a stream header that contains an id',
+          );
+
+          _state = ComponentToServerState.handshakeSent;
+          sendNonza(
+            XMLNode(
+              tag: 'handshake',
+              text: await _computeHandshake(streamId!),
+            ),
+          );
+        } else {
+          log.severe('Unexpected data received');
+          await handleError(UnexpectedDataError());
+        }
+        break;
+      case ComponentToServerState.handshakeSent:
+        if (event is XMPPStreamElement) {
+          if (event.node.tag == 'handshake' &&
+              event.node.children.isEmpty &&
+              event.node.attributes.isEmpty) {
+            log.info('Successfully authenticated as component');
+            await onNegotiationsDone();
+          } else {
+            log.warning('Handshake failed');
+            await handleError(InvalidHandshakeCredentialsError());
+          }
+        } else {
+          log.severe('Unexpected data received');
+          await handleError(UnexpectedDataError());
+        }
+        break;
+    }
+  }
+
+  @override
+  void reset() {
+    _state = ComponentToServerState.idle;
+
+    super.reset();
+  }
+}

packages/moxxmpp/lib/src/iq.dart

@@ -5,7 +5,10 @@ import 'package:moxxmpp/src/stanza.dart';
 /// Bounce a stanza if it was not handled by any manager. [conn] is the connection object
 /// to use for sending the stanza. [data] is the StanzaHandlerData of the unhandled
 /// stanza.
-Future<void> handleUnhandledStanza(XmppConnection conn, StanzaHandlerData data) async {
+Future<void> handleUnhandledStanza(
+  XmppConnection conn,
+  StanzaHandlerData data,
+) async {
   if (data.stanza.type != 'error' && data.stanza.type != 'result') {
     final stanza = data.stanza.copyWith(
       to: data.stanza.from,
@@ -20,9 +23,11 @@ Future<void> handleUnhandledStanza(XmppConnection conn, StanzaHandlerData data)
     );
 
     await conn.sendStanza(
+      StanzaDetails(
         stanza,
         awaitable: false,
         forceEncryption: data.encrypted,
+      ),
     );
   }
 }

packages/moxxmpp/lib/src/jid.dart

@@ -18,7 +18,10 @@ class JID {
     } else {
       resourcePart = slashParts.sublist(1).join('/');
 
-      assert(resourcePart.isNotEmpty, 'Resource part cannot be there and empty');
+      assert(
+        resourcePart.isNotEmpty,
+        'Resource part cannot be there and empty',
+      );
     }
 
     final atParts = slashParts.first.split('@');
@@ -34,9 +37,9 @@ class JID {
 
     return JID(
       localPart,
-      domainPart.endsWith('.') ?
-        domainPart.substring(0, domainPart.length - 1) :
-        domainPart,
+      domainPart.endsWith('.')
+          ? domainPart.substring(0, domainPart.length - 1)
+          : domainPart,
       resourcePart,
     );
   }
@@ -52,14 +55,17 @@ class JID {
 
   /// Converts the JID into a bare JID.
   JID toBare() {
-    if (isBare()) return this;
-    
     return JID(local, domain, '');
   }
 
   /// Converts the JID into one with a resource part of [resource].
   JID withResource(String resource) => JID(local, domain, resource);
 
+  /// Convert the JID into the JID of the domain. For example, converts alice@example.org/abc123 to example.org.
+  JID toDomain() {
+    return JID('', domain, '');
+  }
+
   /// Compares the JID with [other]. This function assumes that JID and [other]
   /// are bare, i.e. only the domain- and localparts are compared. If [ensureBare]
   /// is optionally set to true, then [other] MUST be bare. Otherwise, false is returned.
@@ -90,7 +96,9 @@ class JID {
   @override
   bool operator ==(Object other) {
     if (other is JID) {
-      return other.local == local && other.domain == domain && other.resource == resource;
+      return other.local == local &&
+          other.domain == domain &&
+          other.resource == resource;
     }
 
     return false;

packages/moxxmpp/lib/src/managers/attributes.dart

@@ -16,14 +16,14 @@ class XmppManagerAttributes {
     required this.getManagerById,
     required this.sendEvent,
     required this.getConnectionSettings,
-    required this.isFeatureSupported,
     required this.getFullJID,
     required this.getSocket,
     required this.getConnection,
     required this.getNegotiatorById,
   });
+
   /// Send a stanza whose response can be awaited.
-  final Future<XMLNode> Function(Stanza stanza, { StanzaFromType addFrom, bool addId, bool awaitable, bool encrypted, bool forceEncryption}) sendStanza;
+  final Future<XMLNode?> Function(StanzaDetails) sendStanza;
 
   /// Send a nonza.
   final void Function(XMLNode) sendNonza;
@@ -37,9 +37,6 @@ class XmppManagerAttributes {
   /// (Maybe) Get a Manager attached to the connection by its Id.
   final T? Function<T extends XmppManagerBase>(String) getManagerById;
 
-  /// Returns true if a server feature is supported
-  final bool Function(String) isFeatureSupported;
-  
   /// Returns the full JID of the current account
   final JID Function() getFullJID;
 
@@ -49,5 +46,6 @@ class XmppManagerAttributes {
   /// Return the [XmppConnection] the manager is registered against.
   final XmppConnection Function() getConnection;
 
-  final T? Function<T extends XmppFeatureNegotiatorBase>(String) getNegotiatorById;
+  final T? Function<T extends XmppFeatureNegotiatorBase>(String)
+      getNegotiatorById;
 }

packages/moxxmpp/lib/src/managers/base.dart

@@ -5,9 +5,12 @@ import 'package:moxxmpp/src/managers/attributes.dart';
 import 'package:moxxmpp/src/managers/data.dart';
 import 'package:moxxmpp/src/managers/handlers.dart';
 import 'package:moxxmpp/src/managers/namespaces.dart';
+import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
+import 'package:moxxmpp/src/xeps/xep_0030/errors.dart';
 import 'package:moxxmpp/src/xeps/xep_0030/types.dart';
 import 'package:moxxmpp/src/xeps/xep_0030/xep_0030.dart';
+import 'package:moxxmpp/src/xeps/xep_0198/xep_0198.dart';
 
 abstract class XmppManagerBase {
   XmppManagerBase(this.id);
@@ -30,6 +33,28 @@ abstract class XmppManagerBase {
     return _managerAttributes;
   }
 
+  /// Resolves to true when the server supports the disco feature [xmlns]. Resolves
+  /// to false when either the disco request fails or the server does not
+  /// support [xmlns].
+  /// Note that this function requires a registered DiscoManager.
+  @protected
+  Future<bool> isFeatureSupported(String xmlns) async {
+    final dm = _managerAttributes.getManagerById<DiscoManager>(discoManager);
+    assert(
+      dm != null,
+      'The DiscoManager must be registered for isFeatureSupported to work',
+    );
+
+    final result = await dm!.discoInfoQuery(
+      _managerAttributes.getConnectionSettings().jid.toDomain(),
+    );
+    if (result.isType<DiscoError>()) {
+      return false;
+    }
+
+    return result.get<DiscoInfo>().features.contains(xmlns);
+  }
+
   /// Return the StanzaHandlers associated with this manager that deal with stanzas we
   /// send. These are run before the stanza is sent. The higher the value of the
   /// handler's priority, the earlier it is run.
@@ -55,6 +80,9 @@ abstract class XmppManagerBase {
   /// handler's priority, the earlier it is run.
   List<NonzaHandler> getNonzaHandlers() => [];
 
+  /// Whenever the socket receives data, this method is called, if it is non-null.
+  Future<void> onData() async {}
+
   /// Return a list of features that should be included in a disco response.
   List<String> getDiscoFeatures() => [];
 
@@ -98,25 +126,39 @@ abstract class XmppManagerBase {
   /// the nonza has been handled by one of the handlers. Resolves to false otherwise.
   Future<bool> runNonzaHandlers(XMLNode nonza) async {
     var handled = false;
-    await Future.forEach(
-      getNonzaHandlers(),
-      (NonzaHandler handler) async {
+    await Future.forEach(getNonzaHandlers(), (NonzaHandler handler) async {
       if (handler.matches(nonza)) {
         handled = true;
         await handler.callback(nonza);
       }
-      }
-    );
+    });
 
     return handled;
   }
 
+  /// Returns true, if the current stream negotiations resulted in a new stream. Useful
+  /// for plugins to reset their cache in case of a new stream.
+  /// The value only makes sense after receiving a StreamNegotiationsDoneEvent.
+  Future<bool> isNewStream() async {
+    final sm =
+        getAttributes().getManagerById<StreamManagementManager>(smManager);
+
+    return sm?.streamResumed == false;
+  }
+
   /// Sends a reply of the stanza in [data] with [type]. Replaces the original stanza's
   /// children with [children].
   ///
   /// Note that this function currently only accepts IQ stanzas.
-  Future<void> reply(StanzaHandlerData data, String type, List<XMLNode> children) async {
-    assert(data.stanza.tag == 'iq', 'Reply makes little sense for non-IQ stanzas');
+  Future<void> reply(
+    StanzaHandlerData data,
+    String type,
+    List<XMLNode> children,
+  ) async {
+    assert(
+      data.stanza.tag == 'iq',
+      'Reply makes little sense for non-IQ stanzas',
+    );
 
     final stanza = data.stanza.copyWith(
       to: data.stanza.from,
@@ -126,9 +168,11 @@ abstract class XmppManagerBase {
     );
 
     await getAttributes().sendStanza(
+      StanzaDetails(
         stanza,
         awaitable: false,
         forceEncryption: data.encrypted,
+      ),
     );
   }
 }

packages/moxxmpp/lib/src/managers/data.dart

@@ -1,76 +1,59 @@
-import 'package:freezed_annotation/freezed_annotation.dart';
 import 'package:moxxmpp/src/stanza.dart';
-import 'package:moxxmpp/src/xeps/xep_0066.dart';
-import 'package:moxxmpp/src/xeps/xep_0085.dart';
-import 'package:moxxmpp/src/xeps/xep_0203.dart';
-import 'package:moxxmpp/src/xeps/xep_0359.dart';
-import 'package:moxxmpp/src/xeps/xep_0380.dart';
-import 'package:moxxmpp/src/xeps/xep_0385.dart';
-import 'package:moxxmpp/src/xeps/xep_0424.dart';
-import 'package:moxxmpp/src/xeps/xep_0444.dart';
-import 'package:moxxmpp/src/xeps/xep_0446.dart';
-import 'package:moxxmpp/src/xeps/xep_0447.dart';
-import 'package:moxxmpp/src/xeps/xep_0461.dart';
+import 'package:moxxmpp/src/util/typed_map.dart';
 
-part 'data.freezed.dart';
+abstract class StanzaHandlerExtension {}
+
+class StanzaHandlerData {
+  StanzaHandlerData(
+    this.done,
+    this.cancel,
+    this.stanza,
+    this.extensions, {
+    this.cancelReason,
+    this.encryptionError,
+    this.encrypted = false,
+    this.forceEncryption = false,
+    this.shouldEncrypt = true,
+    this.skip = false,
+  });
+
+  /// Indicates to the runner that processing is now done. This means that all
+  /// pre-processing is done and no other handlers should be consulted.
+  bool done;
+
+  /// Only useful in combination with [done] = true: When [skip] is set to true and
+  /// this [StanzaHandlerData] object is returned from a IncomingPreStanzaHandler, then
+  /// moxxmpp will skip checking whether the stanza was awaited and will not run any actual
+  /// IncomingStanzaHandler callbacks.
+  bool skip;
+
+  /// Indicates to the runner that processing is to be cancelled and no further handlers
+  /// should run. The stanza also will not be sent.
+  bool cancel;
+
+  /// The reason why we cancelled the processing and sending.
+  Object? cancelReason;
+
+  /// The reason why an encryption or decryption failed.
+  Object? encryptionError;
+
+  /// The stanza that is being dealt with. SHOULD NOT be overwritten, unless it is
+  /// absolutely necessary, e.g. with Message Carbons or OMEMO.
+  Stanza stanza;
+
+  /// Whether the stanza is already encrypted
+  bool encrypted;
 
-@freezed
-class StanzaHandlerData with _$StanzaHandlerData {
-  factory StanzaHandlerData(
-    // Indicates to the runner that processing is now done. This means that all
-    // pre-processing is done and no other handlers should be consulted.
-    bool done,
-    // Indicates to the runner that processing is to be cancelled and no further handlers
-    // should run. The stanza also will not be sent.
-    bool cancel,
-    // The reason why we cancelled the processing and sending
-    dynamic cancelReason,
-    // The stanza that is being dealt with. SHOULD NOT be overwritten, unless it is absolutely
-    // necessary, e.g. with Message Carbons or OMEMO
-    Stanza stanza,
-    {
-      // Whether the stanza is retransmitted. Only useful in the context of outgoing
-      // stanza handlers. MUST NOT be overwritten.
-      @Default(false) bool retransmitted,
-      StatelessMediaSharingData? sims,
-      StatelessFileSharingData? sfs,
-      OOBData? oob,
-      StableStanzaId? stableId,
-      ReplyData? reply,
-      ChatState? chatState,
-      @Default(false) bool isCarbon,
-      @Default(false) bool deliveryReceiptRequested,
-      @Default(false) bool isMarkable,
-      // File Upload Notifications
-      // A notification
-      FileMetadataData? fun,
-      // The stanza id this replaces
-      String? funReplacement,
-      // The stanza id this cancels
-      String? funCancellation,
-      // Whether the stanza was received encrypted
-      @Default(false) bool encrypted,
   // If true, forces the encryption manager to encrypt to the JID, even if it
   // would not normally. In the case of OMEMO: If shouldEncrypt returns false
   // but forceEncryption is true, then the OMEMO manager will try to encrypt
   // to the JID anyway.
-      @Default(false) bool forceEncryption,
-      // The stated type of encryption used, if any was used
-      ExplicitEncryptionType? encryptionType,
-      // Delayed Delivery
-      DelayedDelivery? delayedDelivery,
-      // This is for stanza handlers that are not part of the XMPP library but still need
-      // pass data around.
-      @Default(<String, dynamic>{}) Map<String, dynamic> other,
-      // If non-null, then it indicates the origin Id of the message that should be
-      // retracted
-      MessageRetractionData? messageRetraction,
-      // If non-null, then the message is a correction for the specified stanza Id
-      String? lastMessageCorrectionSid,
-      // Reactions data
-      MessageReactions? messageReactions,
-      // The Id of the sticker pack this sticker belongs to
-      String? stickerPackId,
-    }
-  ) = _StanzaHandlerData;
+  bool forceEncryption;
+
+  /// Flag indicating whether a E2EE implementation should encrypt the stanza (true)
+  /// or not (false).
+  bool shouldEncrypt;
+
+  /// Additional data from other managers.
+  final TypedMap<StanzaHandlerExtension> extensions;
 }

packages/moxxmpp/lib/src/managers/data.freezed.dart

@@ -1,747 +0,0 @@
-// coverage:ignore-file
-// GENERATED CODE - DO NOT MODIFY BY HAND
-// ignore_for_file: type=lint
-// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
-
-part of 'data.dart';
-
-// **************************************************************************
-// FreezedGenerator
-// **************************************************************************
-
-T _$identity<T>(T value) => value;
-
-final _privateConstructorUsedError = UnsupportedError(
-    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
-
-/// @nodoc
-mixin _$StanzaHandlerData {
-// Indicates to the runner that processing is now done. This means that all
-// pre-processing is done and no other handlers should be consulted.
-  bool get done =>
-      throw _privateConstructorUsedError; // Indicates to the runner that processing is to be cancelled and no further handlers
-// should run. The stanza also will not be sent.
-  bool get cancel =>
-      throw _privateConstructorUsedError; // The reason why we cancelled the processing and sending
-  dynamic get cancelReason =>
-      throw _privateConstructorUsedError; // The stanza that is being dealt with. SHOULD NOT be overwritten, unless it is absolutely
-// necessary, e.g. with Message Carbons or OMEMO
-  Stanza get stanza =>
-      throw _privateConstructorUsedError; // Whether the stanza is retransmitted. Only useful in the context of outgoing
-// stanza handlers. MUST NOT be overwritten.
-  bool get retransmitted => throw _privateConstructorUsedError;
-  StatelessMediaSharingData? get sims => throw _privateConstructorUsedError;
-  StatelessFileSharingData? get sfs => throw _privateConstructorUsedError;
-  OOBData? get oob => throw _privateConstructorUsedError;
-  StableStanzaId? get stableId => throw _privateConstructorUsedError;
-  ReplyData? get reply => throw _privateConstructorUsedError;
-  ChatState? get chatState => throw _privateConstructorUsedError;
-  bool get isCarbon => throw _privateConstructorUsedError;
-  bool get deliveryReceiptRequested => throw _privateConstructorUsedError;
-  bool get isMarkable =>
-      throw _privateConstructorUsedError; // File Upload Notifications
-// A notification
-  FileMetadataData? get fun =>
-      throw _privateConstructorUsedError; // The stanza id this replaces
-  String? get funReplacement =>
-      throw _privateConstructorUsedError; // The stanza id this cancels
-  String? get funCancellation =>
-      throw _privateConstructorUsedError; // Whether the stanza was received encrypted
-  bool get encrypted =>
-      throw _privateConstructorUsedError; // If true, forces the encryption manager to encrypt to the JID, even if it
-// would not normally. In the case of OMEMO: If shouldEncrypt returns false
-// but forceEncryption is true, then the OMEMO manager will try to encrypt
-// to the JID anyway.
-  bool get forceEncryption =>
-      throw _privateConstructorUsedError; // The stated type of encryption used, if any was used
-  ExplicitEncryptionType? get encryptionType =>
-      throw _privateConstructorUsedError; // Delayed Delivery
-  DelayedDelivery? get delayedDelivery =>
-      throw _privateConstructorUsedError; // This is for stanza handlers that are not part of the XMPP library but still need
-// pass data around.
-  Map<String, dynamic> get other =>
-      throw _privateConstructorUsedError; // If non-null, then it indicates the origin Id of the message that should be
-// retracted
-  MessageRetractionData? get messageRetraction =>
-      throw _privateConstructorUsedError; // If non-null, then the message is a correction for the specified stanza Id
-  String? get lastMessageCorrectionSid =>
-      throw _privateConstructorUsedError; // Reactions data
-  MessageReactions? get messageReactions =>
-      throw _privateConstructorUsedError; // The Id of the sticker pack this sticker belongs to
-  String? get stickerPackId => throw _privateConstructorUsedError;
-
-  @JsonKey(ignore: true)
-  $StanzaHandlerDataCopyWith<StanzaHandlerData> get copyWith =>
-      throw _privateConstructorUsedError;
-}
-
-/// @nodoc
-abstract class $StanzaHandlerDataCopyWith<$Res> {
-  factory $StanzaHandlerDataCopyWith(
-          StanzaHandlerData value, $Res Function(StanzaHandlerData) then) =
-      _$StanzaHandlerDataCopyWithImpl<$Res>;
-  $Res call(
-      {bool done,
-      bool cancel,
-      dynamic cancelReason,
-      Stanza stanza,
-      bool retransmitted,
-      StatelessMediaSharingData? sims,
-      StatelessFileSharingData? sfs,
-      OOBData? oob,
-      StableStanzaId? stableId,
-      ReplyData? reply,
-      ChatState? chatState,
-      bool isCarbon,
-      bool deliveryReceiptRequested,
-      bool isMarkable,
-      FileMetadataData? fun,
-      String? funReplacement,
-      String? funCancellation,
-      bool encrypted,
-      bool forceEncryption,
-      ExplicitEncryptionType? encryptionType,
-      DelayedDelivery? delayedDelivery,
-      Map<String, dynamic> other,
-      MessageRetractionData? messageRetraction,
-      String? lastMessageCorrectionSid,
-      MessageReactions? messageReactions,
-      String? stickerPackId});
-}
-
-/// @nodoc
-class _$StanzaHandlerDataCopyWithImpl<$Res>
-    implements $StanzaHandlerDataCopyWith<$Res> {
-  _$StanzaHandlerDataCopyWithImpl(this._value, this._then);
-
-  final StanzaHandlerData _value;
-  // ignore: unused_field
-  final $Res Function(StanzaHandlerData) _then;
-
-  @override
-  $Res call({
-    Object? done = freezed,
-    Object? cancel = freezed,
-    Object? cancelReason = freezed,
-    Object? stanza = freezed,
-    Object? retransmitted = freezed,
-    Object? sims = freezed,
-    Object? sfs = freezed,
-    Object? oob = freezed,
-    Object? stableId = freezed,
-    Object? reply = freezed,
-    Object? chatState = freezed,
-    Object? isCarbon = freezed,
-    Object? deliveryReceiptRequested = freezed,
-    Object? isMarkable = freezed,
-    Object? fun = freezed,
-    Object? funReplacement = freezed,
-    Object? funCancellation = freezed,
-    Object? encrypted = freezed,
-    Object? forceEncryption = freezed,
-    Object? encryptionType = freezed,
-    Object? delayedDelivery = freezed,
-    Object? other = freezed,
-    Object? messageRetraction = freezed,
-    Object? lastMessageCorrectionSid = freezed,
-    Object? messageReactions = freezed,
-    Object? stickerPackId = freezed,
-  }) {
-    return _then(_value.copyWith(
-      done: done == freezed
-          ? _value.done
-          : done // ignore: cast_nullable_to_non_nullable
-              as bool,
-      cancel: cancel == freezed
-          ? _value.cancel
-          : cancel // ignore: cast_nullable_to_non_nullable
-              as bool,
-      cancelReason: cancelReason == freezed
-          ? _value.cancelReason
-          : cancelReason // ignore: cast_nullable_to_non_nullable
-              as dynamic,
-      stanza: stanza == freezed
-          ? _value.stanza
-          : stanza // ignore: cast_nullable_to_non_nullable
-              as Stanza,
-      retransmitted: retransmitted == freezed
-          ? _value.retransmitted
-          : retransmitted // ignore: cast_nullable_to_non_nullable
-              as bool,
-      sims: sims == freezed
-          ? _value.sims
-          : sims // ignore: cast_nullable_to_non_nullable
-              as StatelessMediaSharingData?,
-      sfs: sfs == freezed
-          ? _value.sfs
-          : sfs // ignore: cast_nullable_to_non_nullable
-              as StatelessFileSharingData?,
-      oob: oob == freezed
-          ? _value.oob
-          : oob // ignore: cast_nullable_to_non_nullable
-              as OOBData?,
-      stableId: stableId == freezed
-          ? _value.stableId
-          : stableId // ignore: cast_nullable_to_non_nullable
-              as StableStanzaId?,
-      reply: reply == freezed
-          ? _value.reply
-          : reply // ignore: cast_nullable_to_non_nullable
-              as ReplyData?,
-      chatState: chatState == freezed
-          ? _value.chatState
-          : chatState // ignore: cast_nullable_to_non_nullable
-              as ChatState?,
-      isCarbon: isCarbon == freezed
-          ? _value.isCarbon
-          : isCarbon // ignore: cast_nullable_to_non_nullable
-              as bool,
-      deliveryReceiptRequested: deliveryReceiptRequested == freezed
-          ? _value.deliveryReceiptRequested
-          : deliveryReceiptRequested // ignore: cast_nullable_to_non_nullable
-              as bool,
-      isMarkable: isMarkable == freezed
-          ? _value.isMarkable
-          : isMarkable // ignore: cast_nullable_to_non_nullable
-              as bool,
-      fun: fun == freezed
-          ? _value.fun
-          : fun // ignore: cast_nullable_to_non_nullable
-              as FileMetadataData?,
-      funReplacement: funReplacement == freezed
-          ? _value.funReplacement
-          : funReplacement // ignore: cast_nullable_to_non_nullable
-              as String?,
-      funCancellation: funCancellation == freezed
-          ? _value.funCancellation
-          : funCancellation // ignore: cast_nullable_to_non_nullable
-              as String?,
-      encrypted: encrypted == freezed
-          ? _value.encrypted
-          : encrypted // ignore: cast_nullable_to_non_nullable
-              as bool,
-      forceEncryption: forceEncryption == freezed
-          ? _value.forceEncryption
-          : forceEncryption // ignore: cast_nullable_to_non_nullable
-              as bool,
-      encryptionType: encryptionType == freezed
-          ? _value.encryptionType
-          : encryptionType // ignore: cast_nullable_to_non_nullable
-              as ExplicitEncryptionType?,
-      delayedDelivery: delayedDelivery == freezed
-          ? _value.delayedDelivery
-          : delayedDelivery // ignore: cast_nullable_to_non_nullable
-              as DelayedDelivery?,
-      other: other == freezed
-          ? _value.other
-          : other // ignore: cast_nullable_to_non_nullable
-              as Map<String, dynamic>,
-      messageRetraction: messageRetraction == freezed
-          ? _value.messageRetraction
-          : messageRetraction // ignore: cast_nullable_to_non_nullable
-              as MessageRetractionData?,
-      lastMessageCorrectionSid: lastMessageCorrectionSid == freezed
-          ? _value.lastMessageCorrectionSid
-          : lastMessageCorrectionSid // ignore: cast_nullable_to_non_nullable
-              as String?,
-      messageReactions: messageReactions == freezed
-          ? _value.messageReactions
-          : messageReactions // ignore: cast_nullable_to_non_nullable
-              as MessageReactions?,
-      stickerPackId: stickerPackId == freezed
-          ? _value.stickerPackId
-          : stickerPackId // ignore: cast_nullable_to_non_nullable
-              as String?,
-    ));
-  }
-}
-
-/// @nodoc
-abstract class _$$_StanzaHandlerDataCopyWith<$Res>
-    implements $StanzaHandlerDataCopyWith<$Res> {
-  factory _$$_StanzaHandlerDataCopyWith(_$_StanzaHandlerData value,
-          $Res Function(_$_StanzaHandlerData) then) =
-      __$$_StanzaHandlerDataCopyWithImpl<$Res>;
-  @override
-  $Res call(
-      {bool done,
-      bool cancel,
-      dynamic cancelReason,
-      Stanza stanza,
-      bool retransmitted,
-      StatelessMediaSharingData? sims,
-      StatelessFileSharingData? sfs,
-      OOBData? oob,
-      StableStanzaId? stableId,
-      ReplyData? reply,
-      ChatState? chatState,
-      bool isCarbon,
-      bool deliveryReceiptRequested,
-      bool isMarkable,
-      FileMetadataData? fun,
-      String? funReplacement,
-      String? funCancellation,
-      bool encrypted,
-      bool forceEncryption,
-      ExplicitEncryptionType? encryptionType,
-      DelayedDelivery? delayedDelivery,
-      Map<String, dynamic> other,
-      MessageRetractionData? messageRetraction,
-      String? lastMessageCorrectionSid,
-      MessageReactions? messageReactions,
-      String? stickerPackId});
-}
-
-/// @nodoc
-class __$$_StanzaHandlerDataCopyWithImpl<$Res>
-    extends _$StanzaHandlerDataCopyWithImpl<$Res>
-    implements _$$_StanzaHandlerDataCopyWith<$Res> {
-  __$$_StanzaHandlerDataCopyWithImpl(
-      _$_StanzaHandlerData _value, $Res Function(_$_StanzaHandlerData) _then)
-      : super(_value, (v) => _then(v as _$_StanzaHandlerData));
-
-  @override
-  _$_StanzaHandlerData get _value => super._value as _$_StanzaHandlerData;
-
-  @override
-  $Res call({
-    Object? done = freezed,
-    Object? cancel = freezed,
-    Object? cancelReason = freezed,
-    Object? stanza = freezed,
-    Object? retransmitted = freezed,
-    Object? sims = freezed,
-    Object? sfs = freezed,
-    Object? oob = freezed,
-    Object? stableId = freezed,
-    Object? reply = freezed,
-    Object? chatState = freezed,
-    Object? isCarbon = freezed,
-    Object? deliveryReceiptRequested = freezed,
-    Object? isMarkable = freezed,
-    Object? fun = freezed,
-    Object? funReplacement = freezed,
-    Object? funCancellation = freezed,
-    Object? encrypted = freezed,
-    Object? forceEncryption = freezed,
-    Object? encryptionType = freezed,
-    Object? delayedDelivery = freezed,
-    Object? other = freezed,
-    Object? messageRetraction = freezed,
-    Object? lastMessageCorrectionSid = freezed,
-    Object? messageReactions = freezed,
-    Object? stickerPackId = freezed,
-  }) {
-    return _then(_$_StanzaHandlerData(
-      done == freezed
-          ? _value.done
-          : done // ignore: cast_nullable_to_non_nullable
-              as bool,
-      cancel == freezed
-          ? _value.cancel
-          : cancel // ignore: cast_nullable_to_non_nullable
-              as bool,
-      cancelReason == freezed
-          ? _value.cancelReason
-          : cancelReason // ignore: cast_nullable_to_non_nullable
-              as dynamic,
-      stanza == freezed
-          ? _value.stanza
-          : stanza // ignore: cast_nullable_to_non_nullable
-              as Stanza,
-      retransmitted: retransmitted == freezed
-          ? _value.retransmitted
-          : retransmitted // ignore: cast_nullable_to_non_nullable
-              as bool,
-      sims: sims == freezed
-          ? _value.sims
-          : sims // ignore: cast_nullable_to_non_nullable
-              as StatelessMediaSharingData?,
-      sfs: sfs == freezed
-          ? _value.sfs
-          : sfs // ignore: cast_nullable_to_non_nullable
-              as StatelessFileSharingData?,
-      oob: oob == freezed
-          ? _value.oob
-          : oob // ignore: cast_nullable_to_non_nullable
-              as OOBData?,
-      stableId: stableId == freezed
-          ? _value.stableId
-          : stableId // ignore: cast_nullable_to_non_nullable
-              as StableStanzaId?,
-      reply: reply == freezed
-          ? _value.reply
-          : reply // ignore: cast_nullable_to_non_nullable
-              as ReplyData?,
-      chatState: chatState == freezed
-          ? _value.chatState
-          : chatState // ignore: cast_nullable_to_non_nullable
-              as ChatState?,
-      isCarbon: isCarbon == freezed
-          ? _value.isCarbon
-          : isCarbon // ignore: cast_nullable_to_non_nullable
-              as bool,
-      deliveryReceiptRequested: deliveryReceiptRequested == freezed
-          ? _value.deliveryReceiptRequested
-          : deliveryReceiptRequested // ignore: cast_nullable_to_non_nullable
-              as bool,
-      isMarkable: isMarkable == freezed
-          ? _value.isMarkable
-          : isMarkable // ignore: cast_nullable_to_non_nullable
-              as bool,
-      fun: fun == freezed
-          ? _value.fun
-          : fun // ignore: cast_nullable_to_non_nullable
-              as FileMetadataData?,
-      funReplacement: funReplacement == freezed
-          ? _value.funReplacement
-          : funReplacement // ignore: cast_nullable_to_non_nullable
-              as String?,
-      funCancellation: funCancellation == freezed
-          ? _value.funCancellation
-          : funCancellation // ignore: cast_nullable_to_non_nullable
-              as String?,
-      encrypted: encrypted == freezed
-          ? _value.encrypted
-          : encrypted // ignore: cast_nullable_to_non_nullable
-              as bool,
-      forceEncryption: forceEncryption == freezed
-          ? _value.forceEncryption
-          : forceEncryption // ignore: cast_nullable_to_non_nullable
-              as bool,
-      encryptionType: encryptionType == freezed
-          ? _value.encryptionType
-          : encryptionType // ignore: cast_nullable_to_non_nullable
-              as ExplicitEncryptionType?,
-      delayedDelivery: delayedDelivery == freezed
-          ? _value.delayedDelivery
-          : delayedDelivery // ignore: cast_nullable_to_non_nullable
-              as DelayedDelivery?,
-      other: other == freezed
-          ? _value._other
-          : other // ignore: cast_nullable_to_non_nullable
-              as Map<String, dynamic>,
-      messageRetraction: messageRetraction == freezed
-          ? _value.messageRetraction
-          : messageRetraction // ignore: cast_nullable_to_non_nullable
-              as MessageRetractionData?,
-      lastMessageCorrectionSid: lastMessageCorrectionSid == freezed
-          ? _value.lastMessageCorrectionSid
-          : lastMessageCorrectionSid // ignore: cast_nullable_to_non_nullable
-              as String?,
-      messageReactions: messageReactions == freezed
-          ? _value.messageReactions
-          : messageReactions // ignore: cast_nullable_to_non_nullable
-              as MessageReactions?,
-      stickerPackId: stickerPackId == freezed
-          ? _value.stickerPackId
-          : stickerPackId // ignore: cast_nullable_to_non_nullable
-              as String?,
-    ));
-  }
-}
-
-/// @nodoc
-
-class _$_StanzaHandlerData implements _StanzaHandlerData {
-  _$_StanzaHandlerData(this.done, this.cancel, this.cancelReason, this.stanza,
-      {this.retransmitted = false,
-      this.sims,
-      this.sfs,
-      this.oob,
-      this.stableId,
-      this.reply,
-      this.chatState,
-      this.isCarbon = false,
-      this.deliveryReceiptRequested = false,
-      this.isMarkable = false,
-      this.fun,
-      this.funReplacement,
-      this.funCancellation,
-      this.encrypted = false,
-      this.forceEncryption = false,
-      this.encryptionType,
-      this.delayedDelivery,
-      final Map<String, dynamic> other = const <String, dynamic>{},
-      this.messageRetraction,
-      this.lastMessageCorrectionSid,
-      this.messageReactions,
-      this.stickerPackId})
-      : _other = other;
-
-// Indicates to the runner that processing is now done. This means that all
-// pre-processing is done and no other handlers should be consulted.
-  @override
-  final bool done;
-// Indicates to the runner that processing is to be cancelled and no further handlers
-// should run. The stanza also will not be sent.
-  @override
-  final bool cancel;
-// The reason why we cancelled the processing and sending
-  @override
-  final dynamic cancelReason;
-// The stanza that is being dealt with. SHOULD NOT be overwritten, unless it is absolutely
-// necessary, e.g. with Message Carbons or OMEMO
-  @override
-  final Stanza stanza;
-// Whether the stanza is retransmitted. Only useful in the context of outgoing
-// stanza handlers. MUST NOT be overwritten.
-  @override
-  @JsonKey()
-  final bool retransmitted;
-  @override
-  final StatelessMediaSharingData? sims;
-  @override
-  final StatelessFileSharingData? sfs;
-  @override
-  final OOBData? oob;
-  @override
-  final StableStanzaId? stableId;
-  @override
-  final ReplyData? reply;
-  @override
-  final ChatState? chatState;
-  @override
-  @JsonKey()
-  final bool isCarbon;
-  @override
-  @JsonKey()
-  final bool deliveryReceiptRequested;
-  @override
-  @JsonKey()
-  final bool isMarkable;
-// File Upload Notifications
-// A notification
-  @override
-  final FileMetadataData? fun;
-// The stanza id this replaces
-  @override
-  final String? funReplacement;
-// The stanza id this cancels
-  @override
-  final String? funCancellation;
-// Whether the stanza was received encrypted
-  @override
-  @JsonKey()
-  final bool encrypted;
-// If true, forces the encryption manager to encrypt to the JID, even if it
-// would not normally. In the case of OMEMO: If shouldEncrypt returns false
-// but forceEncryption is true, then the OMEMO manager will try to encrypt
-// to the JID anyway.
-  @override
-  @JsonKey()
-  final bool forceEncryption;
-// The stated type of encryption used, if any was used
-  @override
-  final ExplicitEncryptionType? encryptionType;
-// Delayed Delivery
-  @override
-  final DelayedDelivery? delayedDelivery;
-// This is for stanza handlers that are not part of the XMPP library but still need
-// pass data around.
-  final Map<String, dynamic> _other;
-// This is for stanza handlers that are not part of the XMPP library but still need
-// pass data around.
-  @override
-  @JsonKey()
-  Map<String, dynamic> get other {
-    // ignore: implicit_dynamic_type
-    return EqualUnmodifiableMapView(_other);
-  }
-
-// If non-null, then it indicates the origin Id of the message that should be
-// retracted
-  @override
-  final MessageRetractionData? messageRetraction;
-// If non-null, then the message is a correction for the specified stanza Id
-  @override
-  final String? lastMessageCorrectionSid;
-// Reactions data
-  @override
-  final MessageReactions? messageReactions;
-// The Id of the sticker pack this sticker belongs to
-  @override
-  final String? stickerPackId;
-
-  @override
-  String toString() {
-    return 'StanzaHandlerData(done: $done, cancel: $cancel, cancelReason: $cancelReason, stanza: $stanza, retransmitted: $retransmitted, sims: $sims, sfs: $sfs, oob: $oob, stableId: $stableId, reply: $reply, chatState: $chatState, isCarbon: $isCarbon, deliveryReceiptRequested: $deliveryReceiptRequested, isMarkable: $isMarkable, fun: $fun, funReplacement: $funReplacement, funCancellation: $funCancellation, encrypted: $encrypted, forceEncryption: $forceEncryption, encryptionType: $encryptionType, delayedDelivery: $delayedDelivery, other: $other, messageRetraction: $messageRetraction, lastMessageCorrectionSid: $lastMessageCorrectionSid, messageReactions: $messageReactions, stickerPackId: $stickerPackId)';
-  }
-
-  @override
-  bool operator ==(dynamic other) {
-    return identical(this, other) ||
-        (other.runtimeType == runtimeType &&
-            other is _$_StanzaHandlerData &&
-            const DeepCollectionEquality().equals(other.done, done) &&
-            const DeepCollectionEquality().equals(other.cancel, cancel) &&
-            const DeepCollectionEquality()
-                .equals(other.cancelReason, cancelReason) &&
-            const DeepCollectionEquality().equals(other.stanza, stanza) &&
-            const DeepCollectionEquality()
-                .equals(other.retransmitted, retransmitted) &&
-            const DeepCollectionEquality().equals(other.sims, sims) &&
-            const DeepCollectionEquality().equals(other.sfs, sfs) &&
-            const DeepCollectionEquality().equals(other.oob, oob) &&
-            const DeepCollectionEquality().equals(other.stableId, stableId) &&
-            const DeepCollectionEquality().equals(other.reply, reply) &&
-            const DeepCollectionEquality().equals(other.chatState, chatState) &&
-            const DeepCollectionEquality().equals(other.isCarbon, isCarbon) &&
-            const DeepCollectionEquality().equals(
-                other.deliveryReceiptRequested, deliveryReceiptRequested) &&
-            const DeepCollectionEquality()
-                .equals(other.isMarkable, isMarkable) &&
-            const DeepCollectionEquality().equals(other.fun, fun) &&
-            const DeepCollectionEquality()
-                .equals(other.funReplacement, funReplacement) &&
-            const DeepCollectionEquality()
-                .equals(other.funCancellation, funCancellation) &&
-            const DeepCollectionEquality().equals(other.encrypted, encrypted) &&
-            const DeepCollectionEquality()
-                .equals(other.forceEncryption, forceEncryption) &&
-            const DeepCollectionEquality()
-                .equals(other.encryptionType, encryptionType) &&
-            const DeepCollectionEquality()
-                .equals(other.delayedDelivery, delayedDelivery) &&
-            const DeepCollectionEquality().equals(other._other, this._other) &&
-            const DeepCollectionEquality()
-                .equals(other.messageRetraction, messageRetraction) &&
-            const DeepCollectionEquality().equals(
-                other.lastMessageCorrectionSid, lastMessageCorrectionSid) &&
-            const DeepCollectionEquality()
-                .equals(other.messageReactions, messageReactions) &&
-            const DeepCollectionEquality()
-                .equals(other.stickerPackId, stickerPackId));
-  }
-
-  @override
-  int get hashCode => Object.hashAll([
-        runtimeType,
-        const DeepCollectionEquality().hash(done),
-        const DeepCollectionEquality().hash(cancel),
-        const DeepCollectionEquality().hash(cancelReason),
-        const DeepCollectionEquality().hash(stanza),
-        const DeepCollectionEquality().hash(retransmitted),
-        const DeepCollectionEquality().hash(sims),
-        const DeepCollectionEquality().hash(sfs),
-        const DeepCollectionEquality().hash(oob),
-        const DeepCollectionEquality().hash(stableId),
-        const DeepCollectionEquality().hash(reply),
-        const DeepCollectionEquality().hash(chatState),
-        const DeepCollectionEquality().hash(isCarbon),
-        const DeepCollectionEquality().hash(deliveryReceiptRequested),
-        const DeepCollectionEquality().hash(isMarkable),
-        const DeepCollectionEquality().hash(fun),
-        const DeepCollectionEquality().hash(funReplacement),
-        const DeepCollectionEquality().hash(funCancellation),
-        const DeepCollectionEquality().hash(encrypted),
-        const DeepCollectionEquality().hash(forceEncryption),
-        const DeepCollectionEquality().hash(encryptionType),
-        const DeepCollectionEquality().hash(delayedDelivery),
-        const DeepCollectionEquality().hash(_other),
-        const DeepCollectionEquality().hash(messageRetraction),
-        const DeepCollectionEquality().hash(lastMessageCorrectionSid),
-        const DeepCollectionEquality().hash(messageReactions),
-        const DeepCollectionEquality().hash(stickerPackId)
-      ]);
-
-  @JsonKey(ignore: true)
-  @override
-  _$$_StanzaHandlerDataCopyWith<_$_StanzaHandlerData> get copyWith =>
-      __$$_StanzaHandlerDataCopyWithImpl<_$_StanzaHandlerData>(
-          this, _$identity);
-}
-
-abstract class _StanzaHandlerData implements StanzaHandlerData {
-  factory _StanzaHandlerData(final bool done, final bool cancel,
-      final dynamic cancelReason, final Stanza stanza,
-      {final bool retransmitted,
-      final StatelessMediaSharingData? sims,
-      final StatelessFileSharingData? sfs,
-      final OOBData? oob,
-      final StableStanzaId? stableId,
-      final ReplyData? reply,
-      final ChatState? chatState,
-      final bool isCarbon,
-      final bool deliveryReceiptRequested,
-      final bool isMarkable,
-      final FileMetadataData? fun,
-      final String? funReplacement,
-      final String? funCancellation,
-      final bool encrypted,
-      final bool forceEncryption,
-      final ExplicitEncryptionType? encryptionType,
-      final DelayedDelivery? delayedDelivery,
-      final Map<String, dynamic> other,
-      final MessageRetractionData? messageRetraction,
-      final String? lastMessageCorrectionSid,
-      final MessageReactions? messageReactions,
-      final String? stickerPackId}) = _$_StanzaHandlerData;
-
-  @override // Indicates to the runner that processing is now done. This means that all
-// pre-processing is done and no other handlers should be consulted.
-  bool get done;
-  @override // Indicates to the runner that processing is to be cancelled and no further handlers
-// should run. The stanza also will not be sent.
-  bool get cancel;
-  @override // The reason why we cancelled the processing and sending
-  dynamic get cancelReason;
-  @override // The stanza that is being dealt with. SHOULD NOT be overwritten, unless it is absolutely
-// necessary, e.g. with Message Carbons or OMEMO
-  Stanza get stanza;
-  @override // Whether the stanza is retransmitted. Only useful in the context of outgoing
-// stanza handlers. MUST NOT be overwritten.
-  bool get retransmitted;
-  @override
-  StatelessMediaSharingData? get sims;
-  @override
-  StatelessFileSharingData? get sfs;
-  @override
-  OOBData? get oob;
-  @override
-  StableStanzaId? get stableId;
-  @override
-  ReplyData? get reply;
-  @override
-  ChatState? get chatState;
-  @override
-  bool get isCarbon;
-  @override
-  bool get deliveryReceiptRequested;
-  @override
-  bool get isMarkable;
-  @override // File Upload Notifications
-// A notification
-  FileMetadataData? get fun;
-  @override // The stanza id this replaces
-  String? get funReplacement;
-  @override // The stanza id this cancels
-  String? get funCancellation;
-  @override // Whether the stanza was received encrypted
-  bool get encrypted;
-  @override // If true, forces the encryption manager to encrypt to the JID, even if it
-// would not normally. In the case of OMEMO: If shouldEncrypt returns false
-// but forceEncryption is true, then the OMEMO manager will try to encrypt
-// to the JID anyway.
-  bool get forceEncryption;
-  @override // The stated type of encryption used, if any was used
-  ExplicitEncryptionType? get encryptionType;
-  @override // Delayed Delivery
-  DelayedDelivery? get delayedDelivery;
-  @override // This is for stanza handlers that are not part of the XMPP library but still need
-// pass data around.
-  Map<String, dynamic> get other;
-  @override // If non-null, then it indicates the origin Id of the message that should be
-// retracted
-  MessageRetractionData? get messageRetraction;
-  @override // If non-null, then the message is a correction for the specified stanza Id
-  String? get lastMessageCorrectionSid;
-  @override // Reactions data
-  MessageReactions? get messageReactions;
-  @override // The Id of the sticker pack this sticker belongs to
-  String? get stickerPackId;
-  @override
-  @JsonKey(ignore: true)
-  _$$_StanzaHandlerDataCopyWith<_$_StanzaHandlerData> get copyWith =>
-      throw _privateConstructorUsedError;
-}

packages/moxxmpp/lib/src/managers/handlers.dart

@@ -1,90 +1,114 @@
-import 'package:moxlib/moxlib.dart';
+import 'package:collection/collection.dart';
 import 'package:moxxmpp/src/managers/data.dart';
 import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
 
+/// A Handler is responsible for matching any kind of toplevel item in the XML stream
+/// (stanzas and Nonzas). For that, its [matches] method is called. What happens
+/// next depends on the subclass.
+// ignore: one_member_abstracts
 abstract class Handler {
-  const Handler(this.matchStanzas, { this.nonzaTag, this.nonzaXmlns });
-  final String? nonzaTag;
-  final String? nonzaXmlns;
-  final bool matchStanzas;
-
   /// Returns true if the node matches the description provided by this [Handler].
+  bool matches(XMLNode node);
+}
+
+/// A Handler that specialises in matching Nonzas (and stanzas).
+class NonzaHandler extends Handler {
+  NonzaHandler({
+    required this.callback,
+    this.nonzaTag,
+    this.nonzaXmlns,
+  });
+
+  /// The function to call when a nonza matches the description.
+  final Future<bool> Function(XMLNode) callback;
+
+  /// The expected tag of a matching nonza.
+  final String? nonzaTag;
+
+  // The expected xmlns attribute of a matching nonza.
+  final String? nonzaXmlns;
+
+  @override
   bool matches(XMLNode node) {
-    var matches = false;
-
+    var matches = true;
     if (nonzaTag == null && nonzaXmlns == null) {
-      matches = true;
+      return true;
+    } else {
+      if (nonzaXmlns != null) {
+        matches &= node.attributes['xmlns'] == nonzaXmlns;
       }
-
-    if (nonzaXmlns != null && nonzaTag != null) {
-      matches = (node.attributes['xmlns'] ?? '') == nonzaXmlns! && node.tag == nonzaTag!;
+      if (nonzaTag != null) {
+        matches &= node.tag == nonzaTag;
       }
-    
-    if (matchStanzas && nonzaTag == null) {
-      matches = [ 'iq', 'presence', 'message' ].contains(node.tag);
     }
 
     return matches;
   }
 }
 
-class NonzaHandler extends Handler {
-  NonzaHandler({
-      required this.callback,
-      String? nonzaTag,
-      String? nonzaXmlns,
-  }) : super(
-    false,
-    nonzaTag: nonzaTag,
-    nonzaXmlns: nonzaXmlns,
-  );
-  final Future<bool> Function(XMLNode) callback;
-}
-
+/// A Handler that only matches stanzas.
 class StanzaHandler extends Handler {
   StanzaHandler({
     required this.callback,
     this.tagXmlns,
     this.tagName,
     this.priority = 0,
-      String? stanzaTag,
-  }) : super(
-      true,
-      nonzaTag: stanzaTag,
-      nonzaXmlns: stanzaXmlns,
-    );
+    this.stanzaTag,
+    this.xmlns,
+  });
+
+  /// If specified, then the stanza must contain a direct child with a tag equal to
+  /// [tagName].
   final String? tagName;
+
+  /// If specified, then the stanza must contain a direct child with a xmlns attribute
+  /// equal to [tagXmlns]. If [tagName] is also non-null, then the element must also
+  /// have a tag equal to [tagName].
   final String? tagXmlns;
+
+  /// If specified, the matching stanza must have a tag equal to [stanzaTag].
+  final String? stanzaTag;
+
+  /// If specified, then the stanza must have a xmlns attribute equal to [xmlns].
+  /// This defaults to [stanzaXmlns], but can be set to any other value or null. This
+  /// is useful, for example, for components.
+  final String? xmlns;
+
+  /// The priority after which [StanzaHandler]s are sorted.
   final int priority;
+
+  /// The function to call when a stanza matches the description.
   final Future<StanzaHandlerData> Function(Stanza, StanzaHandlerData) callback;
 
   @override
   bool matches(XMLNode node) {
-    var matches = super.matches(node);
-    
-    if (matches == false) {
-      return false;
+    var matches = ['iq', 'message', 'presence'].contains(node.tag);
+    if (stanzaTag != null) {
+      matches &= node.tag == stanzaTag;
+    }
+    if (xmlns != null) {
+      matches &= node.xmlns == xmlns;
     }
 
     if (tagName != null) {
       final firstTag = node.firstTag(tagName!, xmlns: tagXmlns);
+      matches &= firstTag != null;
 
-      matches = firstTag != null;
-    } else if (tagXmlns != null) {
-      return listContains(
-        node.children,
-        (XMLNode node_) => node_.attributes.containsKey('xmlns') && node_.attributes['xmlns'] == tagXmlns,
-      );
+      if (tagXmlns != null) {
+        matches &= firstTag?.xmlns == tagXmlns;
       }
-
-    if (tagName == null && tagXmlns == null) {
-      matches = true;
+    } else if (tagXmlns != null) {
+      matches &= node.children.firstWhereOrNull(
+            (XMLNode node_) => node_.attributes['xmlns'] == tagXmlns,
+          ) !=
+          null;
     }
 
     return matches;
   }
 }
 
-int stanzaHandlerSortComparator(StanzaHandler a, StanzaHandler b) => b.priority.compareTo(a.priority);
+int stanzaHandlerSortComparator(StanzaHandler a, StanzaHandler b) =>
+    b.priority.compareTo(a.priority);

packages/moxxmpp/lib/src/managers/namespaces.dart

@@ -10,7 +10,8 @@ const pubsubManager = 'org.moxxmpp.pubsubmanager';
 const userAvatarManager = 'org.moxxmpp.useravatarmanager';
 const stableIdManager = 'org.moxxmpp.stableidmanager';
 const simsManager = 'org.moxxmpp.simsmanager';
-const messageDeliveryReceiptManager = 'org.moxxmpp.messagedeliveryreceiptmanager';
+const messageDeliveryReceiptManager =
+    'org.moxxmpp.messagedeliveryreceiptmanager';
 const chatMarkerManager = 'org.moxxmpp.chatmarkermanager';
 const oobManager = 'org.moxxmpp.oobmanager';
 const sfsManager = 'org.moxxmpp.sfsmanager';
@@ -19,7 +20,8 @@ const blockingManager = 'org.moxxmpp.blockingmanager';
 const httpFileUploadManager = 'org.moxxmpp.httpfileuploadmanager';
 const chatStateManager = 'org.moxxmpp.chatstatemanager';
 const pingManager = 'org.moxxmpp.ping';
-const fileUploadNotificationManager = 'org.moxxmpp.fileuploadnotificationmanager';
+const fileUploadNotificationManager =
+    'org.moxxmpp.fileuploadnotificationmanager';
 const omemoManager = 'org.moxxmpp.omemomanager';
 const emeManager = 'org.moxxmpp.ememanager';
 const cryptographicHashManager = 'org.moxxmpp.cryptographichashmanager';
@@ -29,3 +31,6 @@ const lastMessageCorrectionManager = 'org.moxxmpp.lastmessagecorrectionmanager';
 const messageReactionsManager = 'org.moxxmpp.messagereactionsmanager';
 const stickersManager = 'org.moxxmpp.stickersmanager';
 const entityCapabilitiesManager = 'org.moxxmpp.entitycapabilities';
+const messageProcessingHintManager = 'org.moxxmpp.messageprocessinghint';
+const occupantIdManager = 'org.moxxmpp.occupantidmanager';
+const mucManager = 'org.moxxmpp.mucmanager';

packages/moxxmpp/lib/src/managers/priorities.dart

@@ -0,0 +1 @@
+

packages/moxxmpp/lib/src/message.dart

@@ -1,319 +1,153 @@
-import 'package:moxlib/moxlib.dart';
+import 'package:collection/collection.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/base.dart';
 import 'package:moxxmpp/src/managers/data.dart';
 import 'package:moxxmpp/src/managers/handlers.dart';
 import 'package:moxxmpp/src/managers/namespaces.dart';
-import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/xeps/staging/file_upload_notification.dart';
+import 'package:moxxmpp/src/util/typed_map.dart';
 import 'package:moxxmpp/src/xeps/xep_0066.dart';
-import 'package:moxxmpp/src/xeps/xep_0085.dart';
-import 'package:moxxmpp/src/xeps/xep_0184.dart';
-import 'package:moxxmpp/src/xeps/xep_0308.dart';
-import 'package:moxxmpp/src/xeps/xep_0333.dart';
-import 'package:moxxmpp/src/xeps/xep_0334.dart';
-import 'package:moxxmpp/src/xeps/xep_0359.dart';
-import 'package:moxxmpp/src/xeps/xep_0424.dart';
-import 'package:moxxmpp/src/xeps/xep_0444.dart';
-import 'package:moxxmpp/src/xeps/xep_0446.dart';
 import 'package:moxxmpp/src/xeps/xep_0447.dart';
-import 'package:moxxmpp/src/xeps/xep_0448.dart';
+import 'package:moxxmpp/src/xeps/xep_0449.dart';
 import 'package:moxxmpp/src/xeps/xep_0461.dart';
 
-/// Data used to build a message stanza.
-///
-/// [setOOBFallbackBody] indicates, when using SFS, whether a OOB fallback should be
-/// added. This is recommended when sharing files but may cause issues when the message
-/// stanza should include a SFS element without any fallbacks.
-class MessageDetails {
-  const MessageDetails({
-    required this.to,
-    this.body,
-    this.requestDeliveryReceipt = false,
-    this.requestChatMarkers = true,
-    this.id,
-    this.originId,
-    this.quoteBody,
-    this.quoteId,
-    this.quoteFrom,
-    this.chatState,
-    this.sfs,
-    this.fun,
-    this.funReplacement,
-    this.funCancellation,
-    this.shouldEncrypt = false,
-    this.messageRetraction,
-    this.lastMessageCorrectionId,
-    this.messageReactions,
-    this.messageProcessingHints,
-    this.stickerPackId,
-    this.setOOBFallbackBody = true,
-  });
-  final String to;
+/// A callback that is called whenever a message is sent using
+/// [MessageManager.sendMessage]. The input the typed map that is passed to
+/// sendMessage.
+typedef MessageSendingCallback = List<XMLNode> Function(
+  TypedMap<StanzaHandlerExtension>,
+);
+
+/// The raw content of the <body /> element.
+class MessageBodyData implements StanzaHandlerExtension {
+  const MessageBodyData(this.body);
+
+  /// The content of the <body /> element.
   final String? body;
-  final bool requestDeliveryReceipt;
-  final bool requestChatMarkers;
-  final String? id;
-  final String? originId;
-  final String? quoteBody;
-  final String? quoteId;
-  final String? quoteFrom;
-  final ChatState? chatState;
-  final StatelessFileSharingData? sfs;
-  final FileMetadataData? fun;
-  final String? funReplacement;
-  final String? funCancellation;
-  final bool shouldEncrypt;
-  final MessageRetractionData? messageRetraction;
-  final String? lastMessageCorrectionId;
-  final MessageReactions? messageReactions;
-  final String? stickerPackId;
-  final List<MessageProcessingHint>? messageProcessingHints;
-  final bool setOOBFallbackBody;
+
+  XMLNode toXML() {
+    return XMLNode(
+      tag: 'body',
+      text: body,
+    );
+  }
+}
+
+/// The id attribute of the message stanza.
+class MessageIdData implements StanzaHandlerExtension {
+  const MessageIdData(this.id);
+
+  /// The id attribute of the stanza.
+  final String id;
 }
 
 class MessageManager extends XmppManagerBase {
   MessageManager() : super(messageManager);
 
+  /// The priority of the message handler. If a handler should run before this one,
+  /// which emits the [MessageEvent] event and terminates processing, make sure it
+  /// has a priority greater than [messageHandlerPriority].
+  static int messageHandlerPriority = -100;
+
+  /// A list of callbacks that are called when a message is sent in order to add
+  /// appropriate child elements.
+  final List<MessageSendingCallback> _messageSendingCallbacks =
+      List<MessageSendingCallback>.empty(growable: true);
+
+  void registerMessageSendingCallback(MessageSendingCallback callback) {
+    _messageSendingCallbacks.add(callback);
+  }
+
   @override
   List<StanzaHandler> getIncomingStanzaHandlers() => [
         StanzaHandler(
           stanzaTag: 'message',
           callback: _onMessage,
-      priority: -100,
-    )
+          priority: messageHandlerPriority,
+        ),
       ];
 
   @override
   Future<bool> isSupported() async => true;
 
-  Future<StanzaHandlerData> _onMessage(Stanza _, StanzaHandlerData state) async {
-    final message = state.stanza;
-    final body = message.firstTag('body');
-
-    final hints = List<MessageProcessingHint>.empty(growable: true);
-    for (final element in message.findTagsByXmlns(messageProcessingHintsXmlns)) {
-      hints.add(messageProcessingHintFromXml(element)); 
-    }
-    
-    getAttributes().sendEvent(MessageEvent(
-      body: body != null ? body.innerText() : '',
-      fromJid: JID.fromString(message.attributes['from']! as String),
-      toJid: JID.fromString(message.attributes['to']! as String),
-      sid: message.attributes['id']! as String,
-      stanzaId: state.stableId ?? const StableStanzaId(),
-      isCarbon: state.isCarbon,
-      deliveryReceiptRequested: state.deliveryReceiptRequested,
-      isMarkable: state.isMarkable,
-      type: message.attributes['type'] as String?,
-      oob: state.oob,
-      sfs: state.sfs,
-      sims: state.sims,
-      reply: state.reply,
-      chatState: state.chatState,
-      fun: state.fun,
-      funReplacement: state.funReplacement,
-      funCancellation: state.funCancellation,
-      encrypted: state.encrypted,
-      messageRetraction: state.messageRetraction,
-      messageCorrectionId: state.lastMessageCorrectionSid,
-      messageReactions: state.messageReactions,
-      messageProcessingHints: hints.isEmpty ?
-        null :
-        hints,
-      stickerPackId: state.stickerPackId,
-      other: state.other,
-      error: StanzaError.fromStanza(message),
-    ),);
-
-    return state.copyWith(done: true);
-  }
-
-  /// Send a message to to with the content body. If deliveryRequest is true, then
-  /// the message will also request a delivery receipt from the receiver.
-  /// If id is non-null, then it will be the id of the message stanza.
-  /// element to this id. If originId is non-null, then it will create an "origin-id"
-  /// child in the message stanza and set its id to originId.
-  void sendMessage(MessageDetails details) {
-    assert(
-      implies(details.quoteBody != null, details.quoteFrom != null && details.quoteId != null),
-      'When quoting a message, then quoteFrom and quoteId must also be non-null',
-    );
-
-    final stanza = Stanza.message(
-      to: details.to,
-      type: 'chat',
-      id: details.id,
-      children: [],
-    );
-
-    if (details.quoteBody != null) {
-      final quote = QuoteData.fromBodies(details.quoteBody!, details.body!);
-        
-      stanza
-        ..addChild(
-          XMLNode(tag: 'body', text: quote.body),
-        )
-        ..addChild(
-          XMLNode.xmlns(
-            tag: 'reply',
-            xmlns: replyXmlns,
-            attributes: {
-              'to': details.quoteFrom!,
-              'id': details.quoteId!
-            },
-          ),
-        )
-        ..addChild(
-          XMLNode.xmlns(
-            tag: 'fallback',
-            xmlns: fallbackXmlns,
-            attributes: {
-              'for': replyXmlns
-            },
-            children: [
-              XMLNode(
-                tag: 'body',
-                attributes: <String, String>{
-                  'start': '0',
-                  'end': '${quote.fallbackLength}',
-                },
-              )
-            ],
-          ),
-        );
-    } else {
-      var body = details.body;
-      if (details.sfs != null && details.setOOBFallbackBody) {
-        // TODO(Unknown): Maybe find a better solution
-        final firstSource = details.sfs!.sources.first;
-        if (firstSource is StatelessFileSharingUrlSource) {
-          body = firstSource.url;
-        } else if (firstSource is StatelessFileSharingEncryptedSource) {
-          body = firstSource.source.url;
-        }
-      } else if (details.messageRetraction?.fallback != null) {
-        body = details.messageRetraction!.fallback;
-      }
-
+  Future<StanzaHandlerData> _onMessage(
+    Stanza stanza,
+    StanzaHandlerData state,
+  ) async {
+    final body = stanza.firstTag('body');
     if (body != null) {
-        stanza.addChild(
-          XMLNode(tag: 'body', text: body),
-        );
-      }
-    }
-
-    if (details.requestDeliveryReceipt) {
-      stanza.addChild(makeMessageDeliveryRequest());
-    }
-    if (details.requestChatMarkers) {
-      stanza.addChild(makeChatMarkerMarkable());
-    }
-    if (details.originId != null) {
-      stanza.addChild(makeOriginIdElement(details.originId!));
-    }
-
-    if (details.sfs != null) {
-      stanza.addChild(details.sfs!.toXML());
-
-      final source = details.sfs!.sources.first;
-      if (source is StatelessFileSharingUrlSource && details.setOOBFallbackBody) {
-        // SFS recommends OOB as a fallback
-        stanza.addChild(constructOOBNode(OOBData(url: source.url)));
-      }
-    }
-    
-    if (details.chatState != null) {
-      stanza.addChild(
-        // TODO(Unknown): Move this into xep_0085.dart
-        XMLNode.xmlns(tag: chatStateToString(details.chatState!), xmlns: chatStateXmlns),
+      state.extensions.set(
+        MessageBodyData(body.innerText()),
       );
     }
 
-    if (details.fun != null) {
-      stanza.addChild(
-        XMLNode.xmlns(
-          tag: 'file-upload',
-          xmlns: fileUploadNotificationXmlns,
-          children: [
-            details.fun!.toXML(),
-          ],
+    getAttributes().sendEvent(
+      MessageEvent(
+        JID.fromString(state.stanza.attributes['from']! as String),
+        JID.fromString(state.stanza.attributes['to']! as String),
+        state.encrypted,
+        state.extensions,
+        id: state.stanza.attributes['id'] as String?,
+        type: state.stanza.attributes['type'] as String?,
+        error: StanzaError.fromStanza(state.stanza),
+        encryptionError: state.encryptionError,
+      ),
+    );
+
+    return state..done = true;
+  }
+
+  /// Send an unawaitable message to [to]. [extensions] is a typed map that contains
+  /// data for building the message.
+  Future<void> sendMessage(
+    JID to,
+    TypedMap<StanzaHandlerExtension> extensions, {
+    String type = 'chat',
+  }) async {
+    await getAttributes().sendStanza(
+      StanzaDetails(
+        Stanza.message(
+          to: to.toString(),
+          id: extensions.get<MessageIdData>()?.id,
+          type: type,
+          children: _messageSendingCallbacks
+              .map((c) => c(extensions))
+              .flattened
+              .toList(),
+        ),
+        extensions: extensions,
+        awaitable: false,
       ),
     );
   }
 
-    if (details.funReplacement != null) {
-      stanza.addChild(
-        XMLNode.xmlns(
-          tag: 'replaces',
-          xmlns: fileUploadNotificationXmlns,
-          attributes: <String, String>{
-            'id': details.funReplacement!,
-          },
-        ),
-      );
+  List<XMLNode> _messageSendingCallback(
+    TypedMap<StanzaHandlerExtension> extensions,
+  ) {
+    if (extensions.get<ReplyData>() != null) {
+      return [];
+    }
+    if (extensions.get<StickersData>() != null) {
+      return [];
+    }
+    if (extensions.get<StatelessFileSharingData>() != null) {
+      return [];
+    }
+    if (extensions.get<OOBData>() != null) {
+      return [];
     }
 
-    if (details.messageRetraction != null) {
-      stanza.addChild(
-        XMLNode.xmlns(
-          tag: 'apply-to',
-          xmlns: fasteningXmlns,
-          attributes: <String, String>{
-            'id': details.messageRetraction!.id,
-          },
-          children: [
-            XMLNode.xmlns(
-              tag: 'retract',
-              xmlns: messageRetractionXmlns,
-            ),
-          ],
-        ),
-      );
-
-      if (details.messageRetraction!.fallback != null) {
-        stanza.addChild(
-          XMLNode.xmlns(
-            tag: 'fallback',
-            xmlns: fallbackIndicationXmlns,
-          ),
-        );
-      }
+    final data = extensions.get<MessageBodyData>();
+    return data != null ? [data.toXML()] : [];
   }
 
-    if (details.lastMessageCorrectionId != null) {
-      stanza.addChild(
-        makeLastMessageCorrectionEdit(
-          details.lastMessageCorrectionId!,
-        ),
-      );
-    }
+  @override
+  Future<void> postRegisterCallback() async {
+    await super.postRegisterCallback();
 
-    if (details.messageReactions != null) {
-      stanza.addChild(details.messageReactions!.toXml());
-    }
-    
-    if (details.messageProcessingHints != null) {
-      for (final hint in details.messageProcessingHints!) {
-        stanza.addChild(hint.toXml());
-      }
-    }
-
-    if (details.stickerPackId != null) {
-      stanza.addChild(
-        XMLNode.xmlns(
-          tag: 'sticker',
-          xmlns: stickersXmlns,
-          attributes: {
-            'pack': details.stickerPackId!,
-          },
-        ),
-      );
-    }
-    
-    getAttributes().sendStanza(stanza, awaitable: false);
+    // Register the sending callback
+    registerMessageSendingCallback(_messageSendingCallback);
   }
 }

packages/moxxmpp/lib/src/namespaces.dart

@@ -9,9 +9,11 @@ const fullStanzaXmlns = 'urn:ietf:params:xml:ns:xmpp-stanzas';
 // RFC 6121
 const rosterXmlns = 'jabber:iq:roster';
 const rosterVersioningXmlns = 'urn:xmpp:features:rosterver';
+const subscriptionPreApprovalXmlns = 'urn:xmpp:features:pre-approval';
 
 // XEP-0004
 const dataFormsXmlns = 'jabber:x:data';
+const formVarFormType = 'FORM_TYPE';
 
 // XEP-0030
 const discoInfoXmlns = 'http://jabber.org/protocol/disco#info';
@@ -20,6 +22,11 @@ const discoItemsXmlns = 'http://jabber.org/protocol/disco#items';
 // XEP-0033
 const extendedAddressingXmlns = 'http://jabber.org/protocol/address';
 
+// XEP-0045
+const mucXmlns = 'http://jabber.org/protocol/muc';
+const mucUserXmlns = 'http://jabber.org/protocol/muc#user';
+const roomInfoFormType = 'http://jabber.org/protocol/muc#roominfo';
+
 // XEP-0054
 const vCardTempXmlns = 'vcard-temp';
 const vCardTempUpdate = 'vcard-temp:x:update';
@@ -28,9 +35,11 @@ const vCardTempUpdate = 'vcard-temp:x:update';
 const pubsubXmlns = 'http://jabber.org/protocol/pubsub';
 const pubsubEventXmlns = 'http://jabber.org/protocol/pubsub#event';
 const pubsubOwnerXmlns = 'http://jabber.org/protocol/pubsub#owner';
-const pubsubPublishOptionsXmlns = 'http://jabber.org/protocol/pubsub#publish-options';
+const pubsubPublishOptionsXmlns =
+    'http://jabber.org/protocol/pubsub#publish-options';
 const pubsubNodeConfigMax = 'http://jabber.org/protocol/pubsub#config-node-max';
-const pubsubNodeConfigMultiItems = 'http://jabber.org/protocol/pubsub#multi-items';
+const pubsubNodeConfigMultiItems =
+    'http://jabber.org/protocol/pubsub#multi-items';
 
 // XEP-0066
 const oobDataXmlns = 'jabber:x:oob';
@@ -42,6 +51,9 @@ const userAvatarMetadataXmlns = 'urn:xmpp:avatar:metadata';
 // XEP-0085
 const chatStateXmlns = 'http://jabber.org/protocol/chatstates';
 
+// XEP-0114
+const componentAcceptXmlns = 'jabber:component:accept';
+
 // XEP-0115
 const capsXmlns = 'http://jabber.org/protocol/caps';
 
@@ -60,6 +72,9 @@ const delayedDeliveryXmlns = 'urn:xmpp:delay';
 // XEP-0234
 const jingleFileTransferXmlns = 'urn:xmpp:jingle:apps:file-transfer:5';
 
+// XEP-0264
+const jingleContentThumbnailXmlns = 'urn:xmpp:thumbs:1';
+
 // XEP-0280
 const carbonsXmlns = 'urn:xmpp:carbons:2';
 
@@ -69,12 +84,6 @@ const forwardedXmlns = 'urn:xmpp:forward:0';
 // XEP-0300
 const hashXmlns = 'urn:xmpp:hashes:2';
 const hashFunctionNameBaseXmlns = 'urn:xmpp:hash-function-text-names';
-const hashSha256 = 'sha-256';
-const hashSha512 = 'sha-512';
-const hashSha3256 = 'sha3-256';
-const hashSha3512 = 'sha3-512';
-const hashBlake2b256 = 'blake2b-256';
-const hashBlake2b512 = 'blake2b-512';
 
 // XEP-0308
 const lmcXmlns = 'urn:xmpp:message-correct:0';
@@ -97,7 +106,7 @@ const httpFileUploadXmlns = 'urn:xmpp:http:upload:0';
 // XEP-0372
 const referenceXmlns = 'urn:xmpp:reference:0';
 
-// XEP-380
+// XEP-0380
 const emeXmlns = 'urn:xmpp:eme:0';
 const emeOtr = 'urn:xmpp:otr:0';
 const emeLegacyOpenPGP = 'jabber:x:encrypted';
@@ -114,9 +123,18 @@ const omemoBundlesXmlns = 'urn:xmpp:omemo:2:bundles';
 // XEP-0385
 const simsXmlns = 'urn:xmpp:sims:1';
 
+// XEP-0386
+const bind2Xmlns = 'urn:xmpp:bind:0';
+
+// XEP-0388
+const sasl2Xmlns = 'urn:xmpp:sasl:2';
+
 // XEP-0420
 const sceXmlns = 'urn:xmpp:sce:1';
 
+// XEP-0421
+const occupantIdXmlns = 'urn:xmpp:occupant-id:0';
+
 // XEP-0422
 const fasteningXmlns = 'urn:xmpp:fasten:0';
 
@@ -137,8 +155,10 @@ const sfsXmlns = 'urn:xmpp:sfs:0';
 
 // XEP-0448
 const sfsEncryptionXmlns = 'urn:xmpp:esfs:0';
-const sfsEncryptionAes128GcmNoPaddingXmlns = 'urn:xmpp:ciphers:aes-128-gcm-nopadding:0';
-const sfsEncryptionAes256GcmNoPaddingXmlns = 'urn:xmpp:ciphers:aes-256-gcm-nopadding:0';
+const sfsEncryptionAes128GcmNoPaddingXmlns =
+    'urn:xmpp:ciphers:aes-128-gcm-nopadding:0';
+const sfsEncryptionAes256GcmNoPaddingXmlns =
+    'urn:xmpp:ciphers:aes-256-gcm-nopadding:0';
 const sfsEncryptionAes256CbcPkcs7Xmlns = 'urn:xmpp:ciphers:aes-256-cbc-pkcs7:0';
 
 // XEP-0449
@@ -146,7 +166,9 @@ const stickersXmlns = 'urn:xmpp:stickers:0';
 
 // XEP-0461
 const replyXmlns = 'urn:xmpp:reply:0';
-const fallbackXmlns = 'urn:xmpp:feature-fallback:0';
 
 // ???
 const urlDataXmlns = 'http://jabber.org/protocol/url-data';
+
+// XEP-XXXX
+const fastXmlns = 'urn:xmpp:fast:0';

packages/moxxmpp/lib/src/negotiators/namespaces.dart

@@ -7,3 +7,8 @@ const rosterNegotiator = 'im.moxxmpp.core.roster';
 const resourceBindingNegotiator = 'im.moxxmpp.core.resource';
 const streamManagementNegotiator = 'im.moxxmpp.xeps.sm';
 const startTlsNegotiator = 'im.moxxmpp.core.starttls';
+const sasl2Negotiator = 'org.moxxmpp.sasl.sasl2';
+const bind2Negotiator = 'org.moxxmpp.bind2';
+const saslFASTNegotiator = 'org.moxxmpp.sasl.fast';
+const carbonsNegotiator = 'org.moxxmpp.bind2.carbons';
+const presenceNegotiator = 'org.moxxmpp.core.presence';

packages/moxxmpp/lib/src/negotiators/negotiator.dart

@@ -1,4 +1,7 @@
+import 'package:collection/collection.dart';
+import 'package:meta/meta.dart';
 import 'package:moxlib/moxlib.dart';
+import 'package:moxxmpp/src/connection.dart';
 import 'package:moxxmpp/src/errors.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
@@ -6,7 +9,6 @@ import 'package:moxxmpp/src/managers/base.dart';
 import 'package:moxxmpp/src/settings.dart';
 import 'package:moxxmpp/src/socket.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 
 /// The state a negotiator is currently in
 enum NegotiatorState {
@@ -27,6 +29,7 @@ abstract class NegotiatorError extends XmppError {}
 class NegotiatorAttributes {
   const NegotiatorAttributes(
     this.sendNonza,
+    this.getConnection,
     this.getConnectionSettings,
     this.sendEvent,
     this.getNegotiatorById,
@@ -34,29 +37,59 @@ class NegotiatorAttributes {
     this.getFullJID,
     this.getSocket,
     this.isAuthenticated,
+    this.setAuthenticated,
+    this.setResource,
+    this.removeNegotiatingFeature,
   );
+
   /// Sends the nonza nonza and optionally redacts it in logs if redact is not null.
-  final void Function(XMLNode nonza, {String? redact}) sendNonza;
+  final void Function(XMLNode nonza) sendNonza;
+
   /// Returns the connection settings.
   final ConnectionSettings Function() getConnectionSettings;
-  /// Send an event event to the connection's event bus
+
+  /// Returns the connection object.
+  final XmppConnection Function() getConnection;
+
+  /// Send an event event to the connection's event bus.
   final Future<void> Function(XmppEvent event) sendEvent;
+
   /// Returns the negotiator with id id of the connection or null.
-  final T? Function<T extends XmppFeatureNegotiatorBase>(String) getNegotiatorById;
+  final T? Function<T extends XmppFeatureNegotiatorBase>(String)
+      getNegotiatorById;
+
   /// Returns the manager with id id of the connection or null.
   final T? Function<T extends XmppManagerBase>(String) getManagerById;
+
   /// Returns the full JID of the current account
   final JID Function() getFullJID;
+
   /// Returns the socket the negotiator is attached to
   final BaseSocketWrapper Function() getSocket;
+
   /// Returns true if the stream is authenticated. Returns false if not.
   final bool Function() isAuthenticated;
+
+  /// Sets the resource of the connection. If triggerEvent is true, then a
+  /// [ResourceBoundEvent] is triggered.
+  final void Function(String, {bool triggerEvent}) setResource;
+
+  /// Sets the authentication state of the connection to true.
+  final void Function() setAuthenticated;
+
+  /// Remove a stream feature from our internal cache. This is useful for when you
+  /// negotiated a feature for another negotiator, like SASL2.
+  final void Function(String) removeNegotiatingFeature;
 }
 
 abstract class XmppFeatureNegotiatorBase {
+  XmppFeatureNegotiatorBase(
+    this.priority,
+    this.sendStreamHeaderWhenDone,
+    this.negotiatingXmlns,
+    this.id,
+  ) : state = NegotiatorState.ready;
 
-  XmppFeatureNegotiatorBase(this.priority, this.sendStreamHeaderWhenDone, this.negotiatingXmlns, this.id)
-    : state = NegotiatorState.ready;
   /// The priority regarding other negotiators. The higher, the earlier will the
   /// negotiator be used
   final int priority;
@@ -84,12 +117,15 @@ abstract class XmppFeatureNegotiatorBase {
   /// Returns true if a feature in [features], which are the children of the
   /// <stream:features /> nonza, can be negotiated. Otherwise, returns false.
   bool matchesFeature(List<XMLNode> features) {
-    return firstWhereOrNull(
-      features,
+    return features.firstWhereOrNull(
           (XMLNode feature) => feature.attributes['xmlns'] == negotiatingXmlns,
-    ) != null;
+        ) !=
+        null;
   }
 
+  /// Called when an event is triggered in the [XmppConnection].
+  Future<void> onXmppEvent(XmppEvent event) async {}
+
   /// Called with the currently received nonza [nonza] when the negotiator is active.
   /// If the negotiator is just elected to be the next one, then [nonza] is equal to
   /// the <stream:features /> nonza.
@@ -106,5 +142,10 @@ abstract class XmppFeatureNegotiatorBase {
     state = NegotiatorState.ready;
   }
 
+  @protected
   NegotiatorAttributes get attributes => _attributes;
+
+  /// Run after all negotiators are registered. Useful for registering callbacks against
+  /// other negotiators. By default this function does nothing.
+  Future<void> postRegisterCallback() async {}
 }

packages/moxxmpp/lib/src/negotiators/sasl/errors.dart

@@ -1,3 +0,0 @@
-import 'package:moxxmpp/src/negotiators/negotiator.dart';
-
-class SaslFailedError extends NegotiatorError {}

packages/moxxmpp/lib/src/negotiators/sasl/kv.dart

@@ -1,46 +0,0 @@
-enum ParserState {
-  variableName,
-  variableValue
-}
-
-/// Parse a string like "n,,n=user,r=fyko+d2lbbFgONRv9qkxdawL" into
-/// { "n": "user", "r": "fyko+d2lbbFgONRv9qkxdawL"}.
-Map<String, String> parseKeyValue(String keyValueString) {
-  var state = ParserState.variableName;
-  var name = '';
-  var value = '';
-  final values = <String, String>{};
-
-  for (var i = 0; i < keyValueString.length; i++) {
-    final char = keyValueString[i];
-    switch (state) {
-      case ParserState.variableName: {
-        if (char == '=') {
-          state = ParserState.variableValue; 
-        } else if (char == ',') {
-          name = '';
-        } else {
-          name += char;
-        }
-      }
-      break;
-      case ParserState.variableValue: {
-        if (char == ',' || i == keyValueString.length - 1) {
-          if (char != ',') {
-            value += char;
-          }
-
-          values[name] = value;
-          value = '';
-          name = '';
-          state = ParserState.variableName;
-        } else {
-          value += char;
-        }
-      }
-      break;
-    }
-  }
-
-  return values;
-}

packages/moxxmpp/lib/src/negotiators/sasl/nonza.dart

@@ -1,13 +0,0 @@
-import 'package:moxxmpp/src/namespaces.dart';
-import 'package:moxxmpp/src/stringxml.dart';
-
-class SaslAuthNonza extends XMLNode {
-  SaslAuthNonza(String mechanism, String body) : super(
-    tag: 'auth',
-    attributes: <String, String>{
-      'xmlns': saslXmlns,
-      'mechanism': mechanism ,
-    },
-    text: body,
-  );
-}

packages/moxxmpp/lib/src/negotiators/sasl/plain.dart

@@ -1,73 +0,0 @@
-import 'dart:convert';
-import 'package:logging/logging.dart';
-import 'package:moxxmpp/src/events.dart';
-import 'package:moxxmpp/src/negotiators/namespaces.dart';
-import 'package:moxxmpp/src/negotiators/negotiator.dart';
-import 'package:moxxmpp/src/negotiators/sasl/errors.dart';
-import 'package:moxxmpp/src/negotiators/sasl/negotiator.dart';
-import 'package:moxxmpp/src/negotiators/sasl/nonza.dart';
-import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
-
-class SaslPlainAuthNonza extends SaslAuthNonza {
-  SaslPlainAuthNonza(String username, String password) : super(
-    'PLAIN', base64.encode(utf8.encode('\u0000$username\u0000$password')),
-  );
-}
-
-class SaslPlainNegotiator extends SaslNegotiator {
-  SaslPlainNegotiator()
-    : _authSent = false,
-      _log = Logger('SaslPlainNegotiator'),
-      super(0, saslPlainNegotiator, 'PLAIN');
-  bool _authSent;
-
-  final Logger _log;
-
-  @override
-  bool matchesFeature(List<XMLNode> features) {
-    if (!attributes.getConnectionSettings().allowPlainAuth) return false;
-    
-    if (super.matchesFeature(features)) {
-      if (!attributes.getSocket().isSecure()) {
-        _log.warning('Refusing to match SASL feature due to unsecured connection');
-        return false;
-      }
-
-      return true;
-    }
-
-    return false;
-  }
-
-  @override
-  Future<Result<NegotiatorState, NegotiatorError>> negotiate(XMLNode nonza) async {
-    if (!_authSent) {
-      final settings = attributes.getConnectionSettings();
-      attributes.sendNonza(
-        SaslPlainAuthNonza(settings.jid.local, settings.password),
-        redact: SaslPlainAuthNonza('******', '******').toXml(),
-      );
-      _authSent = true;
-      return const Result(NegotiatorState.ready);
-    } else {
-      final tag = nonza.tag;
-      if (tag == 'success') {
-        await attributes.sendEvent(AuthenticationSuccessEvent());
-        return const Result(NegotiatorState.done);
-      } else {
-        // We assume it's a <failure/>
-        final error = nonza.children.first.tag;
-        await attributes.sendEvent(AuthenticationFailedEvent(error));
-        return Result(SaslFailedError());
-      }
-    }
-  }
-
-  @override
-  void reset() {
-    _authSent = false;
-
-    super.reset();
-  }
-}

packages/moxxmpp/lib/src/negotiators/sasl/scram.dart

@@ -1,265 +0,0 @@
-import 'dart:convert';
-import 'dart:math' show Random;
-import 'package:cryptography/cryptography.dart';
-import 'package:logging/logging.dart';
-import 'package:moxxmpp/src/events.dart';
-import 'package:moxxmpp/src/namespaces.dart';
-import 'package:moxxmpp/src/negotiators/namespaces.dart';
-import 'package:moxxmpp/src/negotiators/negotiator.dart';
-import 'package:moxxmpp/src/negotiators/sasl/errors.dart';
-import 'package:moxxmpp/src/negotiators/sasl/kv.dart';
-import 'package:moxxmpp/src/negotiators/sasl/negotiator.dart';
-import 'package:moxxmpp/src/negotiators/sasl/nonza.dart';
-import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
-import 'package:random_string/random_string.dart';
-import 'package:saslprep/saslprep.dart';
-
-// NOTE: Inspired by https://github.com/vukoye/xmpp_dart/blob/3b1a0588562b9e591488c99d834088391840911d/lib/src/features/sasl/ScramSaslHandler.dart
-
-enum ScramHashType {
-  sha1,
-  sha256,
-  sha512
-}
-
-HashAlgorithm hashFromType(ScramHashType type) {
-  switch (type) {
-    case ScramHashType.sha1: return Sha1();
-    case ScramHashType.sha256: return Sha256();
-    case ScramHashType.sha512: return Sha512();
-  }
-}
-
-int pbkdfBitsFromHash(ScramHashType type) {
-  switch (type) {
-    // NOTE: SHA1 is 20 octets long => 20 octets * 8 bits/octet
-    case ScramHashType.sha1: return 160;
-    // NOTE: SHA256 is 32 octets long => 32 octets * 8 bits/octet
-    case ScramHashType.sha256: return 256;
-    // NOTE: SHA512 is 64 octets long => 64 octets * 8 bits/octet
-    case ScramHashType.sha512: return 512;
-  }
-}
-
-const scramSha1Mechanism = 'SCRAM-SHA-1';
-const scramSha256Mechanism = 'SCRAM-SHA-256';
-const scramSha512Mechanism = 'SCRAM-SHA-512';
-
-String mechanismNameFromType(ScramHashType type) {
-  switch (type) {
-    case ScramHashType.sha1: return scramSha1Mechanism;
-    case ScramHashType.sha256: return scramSha256Mechanism;
-    case ScramHashType.sha512: return scramSha512Mechanism;
-  }
-}
-
-String namespaceFromType(ScramHashType type) {
-  switch (type) {
-    case ScramHashType.sha1: return saslScramSha1Negotiator;
-    case ScramHashType.sha256: return saslScramSha256Negotiator;
-    case ScramHashType.sha512: return saslScramSha512Negotiator;
-  }
-}
-
-class SaslScramAuthNonza extends SaslAuthNonza {
-  // This subclassing makes less sense here, but this is since the auth nonza here
-  // requires knowledge of the inner state of the Negotiator.
-  SaslScramAuthNonza({ required ScramHashType type, required String body }) : super(
-    mechanismNameFromType(type), body,
-  );
-}
-
-class SaslScramResponseNonza extends XMLNode {
-  SaslScramResponseNonza({ required String body }) : super(
-    tag: 'response',
-    attributes: <String, String>{
-      'xmlns': saslXmlns,
-    },
-    text: body,
-  );
-}
-
-enum ScramState {
-  preSent,
-  initialMessageSent,
-  challengeResponseSent,
-  error
-}
-
-const gs2Header = 'n,,';
-
-class SaslScramNegotiator extends SaslNegotiator {
-  // NOTE: NEVER, and I mean, NEVER set clientNonce or initalMessageNoGS2. They are just there for testing
-  SaslScramNegotiator(
-    int priority,
-    this.initialMessageNoGS2,
-    this.clientNonce,
-    this.hashType,
-  ) :
-    _hash = hashFromType(hashType),
-    _serverSignature = '',
-    _scramState = ScramState.preSent,
-    _log = Logger('SaslScramNegotiator(${mechanismNameFromType(hashType)})'),
-    super(priority, namespaceFromType(hashType), mechanismNameFromType(hashType));
-  String? clientNonce;
-  String initialMessageNoGS2;
-  final ScramHashType hashType;
-  final HashAlgorithm _hash;
-  String _serverSignature;
-
-  // The internal state for performing the negotiation
-  ScramState _scramState;
-
-  final Logger _log;
-
-  Future<List<int>> calculateSaltedPassword(String salt, int iterations) async {
-    final pbkdf2 = Pbkdf2(
-      macAlgorithm: Hmac(_hash),
-      iterations: iterations,
-      bits: pbkdfBitsFromHash(hashType),
-    );
-
-    final saltedPasswordRaw = await pbkdf2.deriveKey(
-      secretKey: SecretKey(
-        utf8.encode(Saslprep.saslprep(attributes.getConnectionSettings().password)),
-      ),
-      nonce: base64.decode(salt),
-    );
-    return saltedPasswordRaw.extractBytes();
-  }
-
-  Future<List<int>> calculateClientKey(List<int> saltedPassword) async {
-    return (await Hmac(_hash).calculateMac(
-        utf8.encode('Client Key'), secretKey: SecretKey(saltedPassword),
-    )).bytes;
-  }
-
-  Future<List<int>> calculateClientSignature(String authMessage, List<int> storedKey) async {
-    return (await Hmac(_hash).calculateMac(
-        utf8.encode(authMessage),
-        secretKey: SecretKey(storedKey),
-    )).bytes;
-  }
-
-  Future<List<int>> calculateServerKey(List<int> saltedPassword) async {
-    return (await Hmac(_hash).calculateMac(
-        utf8.encode('Server Key'),
-        secretKey: SecretKey(saltedPassword),
-    )).bytes;
-  }
-
-  Future<List<int>> calculateServerSignature(String authMessage, List<int> serverKey) async {
-    return (await Hmac(_hash).calculateMac(
-        utf8.encode(authMessage),
-        secretKey: SecretKey(serverKey),
-    )).bytes;
-  }
-
-  List<int> calculateClientProof(List<int> clientKey, List<int> clientSignature) {
-    final clientProof = List<int>.filled(clientKey.length, 0);
-    for (var i = 0; i < clientKey.length; i++) {
-      clientProof[i] = clientKey[i] ^ clientSignature[i];
-    }
-
-    return clientProof;
-  }
-  
-  Future<String> calculateChallengeResponse(String base64Challenge) async {
-    final challengeString = utf8.decode(base64.decode(base64Challenge));
-    final challenge = parseKeyValue(challengeString);
-    final clientFinalMessageBare = 'c=biws,r=${challenge['r']!}';
-    
-    final saltedPassword = await calculateSaltedPassword(challenge['s']!, int.parse(challenge['i']!));
-    final clientKey = await calculateClientKey(saltedPassword);
-    final storedKey = (await _hash.hash(clientKey)).bytes;
-    final authMessage = '$initialMessageNoGS2,$challengeString,$clientFinalMessageBare';
-    final clientSignature = await calculateClientSignature(authMessage, storedKey);
-    final clientProof = calculateClientProof(clientKey, clientSignature);
-    final serverKey = await calculateServerKey(saltedPassword);
-    _serverSignature = base64.encode(await calculateServerSignature(authMessage, serverKey));
-
-    return '$clientFinalMessageBare,p=${base64.encode(clientProof)}';
-  }
-
-  @override
-  bool matchesFeature(List<XMLNode> features) {
-    if (super.matchesFeature(features)) {
-      if (!attributes.getSocket().isSecure()) {
-        _log.warning('Refusing to match SASL feature due to unsecured connection');
-        return false;
-      }
-
-      return true;
-    }
-
-    return false;
-  }
-  
-  @override
-  Future<Result<NegotiatorState, NegotiatorError>> negotiate(XMLNode nonza) async {
-    switch (_scramState) {
-      case ScramState.preSent:
-        if (clientNonce == null || clientNonce == '') {
-          clientNonce = randomAlphaNumeric(40, provider: CoreRandomProvider.from(Random.secure()));
-        }
-        
-        initialMessageNoGS2 = 'n=${attributes.getConnectionSettings().jid.local},r=$clientNonce';
-
-        _scramState = ScramState.initialMessageSent;
-        attributes.sendNonza(
-          SaslScramAuthNonza(body: base64.encode(utf8.encode(gs2Header + initialMessageNoGS2)), type: hashType),
-          redact: SaslScramAuthNonza(body: '******', type: hashType).toXml(),
-        );
-        return const Result(NegotiatorState.ready);
-      case ScramState.initialMessageSent:
-        if (nonza.tag != 'challenge') {
-          final error = nonza.children.first.tag;
-          await attributes.sendEvent(AuthenticationFailedEvent(error));
-
-          _scramState = ScramState.error;
-          return Result(SaslFailedError());
-        }
-
-        final challengeBase64 = nonza.innerText();
-        final response = await calculateChallengeResponse(challengeBase64);
-        final responseBase64 = base64.encode(utf8.encode(response));
-        _scramState = ScramState.challengeResponseSent;
-        attributes.sendNonza(
-          SaslScramResponseNonza(body: responseBase64),
-          redact: SaslScramResponseNonza(body: '******').toXml(),
-        );
-        return const Result(NegotiatorState.ready);
-      case ScramState.challengeResponseSent:
-        if (nonza.tag != 'success') {
-          // We assume it's a <failure />
-          final error = nonza.children.first.tag;
-          await attributes.sendEvent(AuthenticationFailedEvent(error));
-          _scramState = ScramState.error;
-          return Result(SaslFailedError());
-        }
-
-        // NOTE: This assumes that the string is always "v=..." and contains no other parameters
-        final signature = parseKeyValue(utf8.decode(base64.decode(nonza.innerText())));
-        if (signature['v']! != _serverSignature) {
-          // TODO(Unknown): Notify of a signature mismatch
-          //final error = nonza.children.first.tag;
-          //attributes.sendEvent(AuthenticationFailedEvent(error));
-          _scramState = ScramState.error;
-          return Result(SaslFailedError());
-        }
-
-        await attributes.sendEvent(AuthenticationSuccessEvent());
-        return const Result(NegotiatorState.done);
-      case ScramState.error:
-        return Result(SaslFailedError());
-    }
-  }
-
-  @override
-  void reset() {
-    _scramState = ScramState.preSent;
-
-    super.reset();
-  }
-}

packages/moxxmpp/lib/src/parser.dart

@@ -0,0 +1,169 @@
+import 'dart:async';
+import 'dart:convert';
+import 'package:moxxmpp/src/stringxml.dart';
+// ignore: implementation_imports
+import 'package:xml/src/xml_events/utils/conversion_sink.dart';
+import 'package:xml/xml.dart';
+import 'package:xml/xml_events.dart';
+
+/// A result object for XmlStreamBuffer.
+abstract class XMPPStreamObject {}
+
+/// A complete XML element returned by the stream buffer.
+class XMPPStreamElement extends XMPPStreamObject {
+  XMPPStreamElement(this.node);
+
+  /// The actual [XMLNode].
+  final XMLNode node;
+}
+
+/// Just the stream header of a new XML stream.
+class XMPPStreamHeader extends XMPPStreamObject {
+  XMPPStreamHeader(this.attributes);
+
+  /// The headers of the stream header.
+  final Map<String, String> attributes;
+}
+
+/// A wrapper around a [Converter]'s [Converter.startChunkedConversion] method.
+class _ChunkedConversionBuffer<S, T> {
+  /// Use the converter [converter].
+  _ChunkedConversionBuffer(Converter<S, List<T>> converter) {
+    _outputSink = ConversionSink<List<T>>(_results.addAll);
+    _inputSink = converter.startChunkedConversion(_outputSink);
+  }
+
+  /// The results of the converter.
+  final List<T> _results = List<T>.empty(growable: true);
+
+  /// The sink that outputs to [_results].
+  late ConversionSink<List<T>> _outputSink;
+
+  /// The sink that we use for input.
+  late Sink<S> _inputSink;
+
+  /// Close all opened sinks.
+  void close() {
+    _inputSink.close();
+    _outputSink.close();
+  }
+
+  /// Turn the input [input] into a list of [T] according to the initial converter.
+  List<T> convert(S input) {
+    _results.clear();
+    _inputSink.add(input);
+    return _results;
+  }
+}
+
+/// A buffer to put between a socket's input and a full XML stream.
+class XMPPStreamParser
+    extends StreamTransformerBase<String, List<XMPPStreamObject>> {
+  final StreamController<List<XMPPStreamObject>> _streamController =
+      StreamController<List<XMPPStreamObject>>();
+
+  /// Turns a String into a list of [XmlEvent]s in a chunked fashion.
+  _ChunkedConversionBuffer<String, XmlEvent> _eventBuffer =
+      _ChunkedConversionBuffer<String, XmlEvent>(XmlEventDecoder());
+
+  /// Turns a list of [XmlEvent]s into a list of [XmlNode]s in a chunked fashion.
+  _ChunkedConversionBuffer<List<XmlEvent>, XmlNode> _childBuffer =
+      _ChunkedConversionBuffer<List<XmlEvent>, XmlNode>(const XmlNodeDecoder());
+
+  /// The selectors.
+  _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent> _childSelector =
+      _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent>(
+    XmlSubtreeSelector((event) => event.qualifiedName != 'stream:stream'),
+  );
+  _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent> _streamHeaderSelector =
+      _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent>(
+    XmlSubtreeSelector((event) => event.qualifiedName == 'stream:stream'),
+  );
+
+  void reset() {
+    try {
+      _eventBuffer.close();
+    } catch (_) {
+      // Do nothing. A crash here may indicate that we end on invalid XML, which is fine
+      // since we're not going to use the buffer's output anymore.
+    }
+    try {
+      _childBuffer.close();
+    } catch (_) {
+      // Do nothing.
+    }
+    try {
+      _childSelector.close();
+    } catch (_) {
+      // Do nothing.
+    }
+    try {
+      _streamHeaderSelector.close();
+    } catch (_) {
+      // Do nothing.
+    }
+
+    // Recreate the buffers.
+    _eventBuffer =
+        _ChunkedConversionBuffer<String, XmlEvent>(XmlEventDecoder());
+    _childBuffer = _ChunkedConversionBuffer<List<XmlEvent>, XmlNode>(
+      const XmlNodeDecoder(),
+    );
+    _childSelector = _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent>(
+      XmlSubtreeSelector((event) => event.qualifiedName != 'stream:stream'),
+    );
+    _streamHeaderSelector = _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent>(
+      XmlSubtreeSelector((event) => event.qualifiedName == 'stream:stream'),
+    );
+  }
+
+  @override
+  Stream<List<XMPPStreamObject>> bind(Stream<String> stream) {
+    // We do not want to use xml's toXmlEvents and toSubtreeEvents methods as they
+    // create streams we cannot close. We need to be able to destroy and recreate an
+    // XML parser whenever we start a new connection.
+    stream.listen((input) {
+      final events = _eventBuffer.convert(input);
+      final streamHeaderEvents = _streamHeaderSelector.convert(events);
+      final objects = List<XMPPStreamObject>.empty(growable: true);
+
+      // Process the stream header separately.
+      for (final event in streamHeaderEvents) {
+        if (event is! XmlStartElementEvent) {
+          continue;
+        }
+
+        if (event.name != 'stream:stream') {
+          continue;
+        }
+
+        objects.add(
+          XMPPStreamHeader(
+            Map<String, String>.fromEntries(
+              event.attributes.map((attr) {
+                return MapEntry(attr.name, attr.value);
+              }),
+            ),
+          ),
+        );
+      }
+
+      // Process the children of the <stream:stream> element.
+      final childEvents = _childSelector.convert(events);
+      final children = _childBuffer.convert(childEvents);
+      for (final node in children) {
+        if (node.nodeType == XmlNodeType.ELEMENT) {
+          objects.add(
+            XMPPStreamElement(
+              XMLNode.fromXmlElement(node as XmlElement),
+            ),
+          );
+        }
+      }
+
+      _streamController.add(objects);
+    });
+
+    return _streamController.stream;
+  }
+}

packages/moxxmpp/lib/src/ping.dart

@@ -1,22 +1,62 @@
+import 'dart:async';
+import 'package:meta/meta.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/managers/base.dart';
 import 'package:moxxmpp/src/managers/namespaces.dart';
 import 'package:moxxmpp/src/xeps/xep_0198/xep_0198.dart';
+import 'package:synchronized/synchronized.dart';
 
+/// This manager class is responsible to sending periodic pings, if required, using
+/// either whitespaces or Stream Management. Keep in mind, that without
+/// Stream Management, a stale connection cannot be detected.
 class PingManager extends XmppManagerBase {
-  PingManager() : super(pingManager);
+  PingManager(this._pingDuration) : super(pingManager);
+
+  /// The time between pings, when connected.
+  final Duration _pingDuration;
+
+  /// The actual timer.
+  Timer? _pingTimer;
+  final Lock _timerLock = Lock();
 
   @override
   Future<bool> isSupported() async => true;
 
   void _logWarning() {
-    logger.warning('Cannot send keepalives as SM is not available, the socket disallows whitespace pings and does not manage its own keepalives. Cannot guarantee that the connection survives.');
+    logger.warning(
+      'Cannot send keepalives as SM is not available, the socket disallows whitespace pings and does not manage its own keepalives. Cannot guarantee that the connection survives.',
+    );
   }
 
-  @override
-  Future<void> onXmppEvent(XmppEvent event) async {
-    if (event is SendPingEvent) {
-      logger.finest('Received ping event.');
+  /// Cancel a potentially scheduled ping timer. Can be overriden to cancel a custom timing mechanism.
+  /// By default, cancels a [Timer.periodic] that was set up prior.
+  @visibleForOverriding
+  Future<void> cancelPing() async {
+    await _timerLock.synchronized(() {
+      logger.finest('Cancelling timer');
+      _pingTimer?.cancel();
+      _pingTimer = null;
+    });
+  }
+
+  /// Schedule a ping to be sent after a given amount of time. Can be overriden for custom timing mechanisms.
+  /// By default, uses a [Timer.periodic] timer to trigger a ping.
+  /// NOTE: This function is called whenever the connection is re-established. Custom
+  ///       implementations should thus guard against multiple timers being started.
+  @visibleForOverriding
+  Future<void> schedulePing() async {
+    await _timerLock.synchronized(() {
+      logger.finest('Scheduling new timer? ${_pingTimer != null}');
+
+      _pingTimer ??= Timer.periodic(
+        _pingDuration,
+        _sendPing,
+      );
+    });
+  }
+
+  Future<void> _sendPing(Timer _) async {
+    logger.finest('Attempting to send ping');
     final attrs = getAttributes();
     final socket = attrs.getSocket();
 
@@ -27,11 +67,14 @@ class PingManager extends XmppManagerBase {
 
     final stream = attrs.getManagerById(smManager) as StreamManagementManager?;
     if (stream != null) {
-        if (stream.isStreamManagementEnabled() /*&& stream.getUnackedStanzaCount() > 0*/) {
+      if (stream
+          .isStreamManagementEnabled() /*&& stream.getUnackedStanzaCount() > 0*/) {
         logger.finest('Sending an ack ping as Stream Management is enabled');
         stream.sendAckRequestPing();
       } else if (attrs.getSocket().whitespacePingAllowed()) {
-          logger.finest('Sending a whitespace ping as Stream Management is not enabled');
+        logger.finest(
+          'Sending a whitespace ping as Stream Management is not enabled',
+        );
         attrs.getConnection().sendWhitespacePing();
       } else {
         _logWarning();
@@ -44,5 +87,15 @@ class PingManager extends XmppManagerBase {
       }
     }
   }
+
+  @override
+  Future<void> onXmppEvent(XmppEvent event) async {
+    if (event is ConnectionStateChangedEvent) {
+      if (event.connectionEstablished) {
+        await schedulePing();
+      } else {
+        await cancelPing();
+      }
+    }
   }
 }