chore(xep): Move FAST from staging into xep_0484.dart

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

.gitlint

@@ -7,7 +7,7 @@ line-length=72
 [title-trailing-punctuation]
 [title-hard-tab]
 [title-match-regex]
-regex=^((feat|fix|chore|refactor|docs|release|test)\((meta|tests|style|docs|xep|core|example|all)+(,(meta|tests|style|docs|xep|core|example|all))*\)|release): [A-Z0-9].*$
+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]

.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

README.md

@@ -7,7 +7,7 @@ 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://moxxy.org/developers/docs/moxxmpp/).
+Documentation is available [here](https://docs.moxxy.org/moxxmpp/index.html).
 
 ### [moxxmpp_socket_tcp](./packages/moxxmpp_socket_tcp)
 
@@ -15,6 +15,10 @@ Documentation is available [here](https://moxxy.org/developers/docs/moxxmpp/).
 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

examples_dart/bin/component.dart

@@ -3,6 +3,8 @@ 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;
@@ -30,11 +32,12 @@ class EchoMessageManager extends XmppManagerBase {
     StanzaHandlerData state,
   ) async {
     final body = stanza.firstTag('body');
-    if (body == null) return state.copyWith(done: true);
+    if (body == null) return state..done = true;
 
     final bodyText = body.innerText();
 
     await getAttributes().sendStanza(
+      StanzaDetails(
         Stanza.message(
           to: stanza.from,
           children: [
@@ -45,9 +48,10 @@ class EchoMessageManager extends XmppManagerBase {
           ],
         ),
         awaitable: false,
+      ),
     );
 
-    return state.copyWith(done: true);
+    return state..done = true;
   }
 }
 

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

@@ -1,25 +1,34 @@
 name: example_dart
-description: A sample command-line application.
+description: A collection of samples for moxxmpp.
 version: 1.0.0
-# homepage: https://www.example.com
 
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  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: 0.3.1
+    version: 0.4.0
   moxxmpp_socket_tcp:
     hosted: https://git.polynom.me/api/packages/Moxxy/pub
-    version: 0.3.1
+    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

flake.lock

@@ -1,12 +1,74 @@
 {
   "nodes": {
-    "flake-utils": {
+    "android-nixpkgs": {
+      "inputs": {
+        "devshell": "devshell",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
       "locked": {
-        "lastModified": 1678901627,
+        "lastModified": 1727554699,
-        "narHash": "sha256-U02riOqrKKzwjsxc/400XnElV+UtPUQWpANPlyazjH0=",
+        "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": "93a2b84fc4b70d9e089d029deacc3583435c2ed6",
+        "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": {
@@ -17,27 +79,27 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1676076353,
+        "lastModified": 1727348695,
-        "narHash": "sha256-mdUtE8Tp40cZETwcq5tCwwLqkJVV1ULJQ5GKRtbshag=",
+        "narHash": "sha256-J+PeFKSDV+pHL7ukkfpVzCOO7mBSrrpJ3svwBFABbhI=",
-        "owner": "AtaraxiaSjel",
+        "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "5deb99bdccbbb97e7562dee4ba8a3ee3021688e6",
+        "rev": "1925c603f17fc89f4c8f6bf6f631a802ad85d784",
         "type": "github"
       },
       "original": {
-        "owner": "AtaraxiaSjel",
+        "owner": "NixOS",
-        "ref": "update/flutter",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
-    "nixpkgs-unstable": {
+    "nixpkgs_2": {
       "locked": {
-        "lastModified": 1680273054,
+        "lastModified": 1727586919,
-        "narHash": "sha256-Bs6/5LpvYp379qVqGt9mXxxx9GSE789k3oFc+OAL07M=",
+        "narHash": "sha256-e/YXG0tO5GWHDS8QQauj8aj4HhXEm602q9swrrlTlKQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3364b5b117f65fe1ce65a3cdd5612a078a3b31e3",
+        "rev": "2dcd9c55e8914017226f5948ac22c53872a13ee2",
         "type": "github"
       },
       "original": {
@@ -49,9 +111,39 @@
     },
     "root": {
       "inputs": {
-        "flake-utils": "flake-utils",
+        "android-nixpkgs": "android-nixpkgs",
-        "nixpkgs": "nixpkgs",
+        "flake-utils": "flake-utils_2",
-        "nixpkgs-unstable": "nixpkgs-unstable"
+        "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

@@ -1,12 +1,12 @@
 {
   description = "moxxmpp";
   inputs = {
-    nixpkgs.url = "github:AtaraxiaSjel/nixpkgs/update/flutter";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
-    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    android-nixpkgs.url = "github:tadfisher/android-nixpkgs";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, nixpkgs, nixpkgs-unstable, 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 = {
@@ -14,9 +14,7 @@
         allowUnfree = true;
       };
     };
-    unstable = import nixpkgs-unstable {
+    # Everything to make Flutter happy
-      inherit system;
-    };
     android = pkgs.androidenv.composeAndroidPackages {
       # TODO: Find a way to pin these
       #toolsVersion = "26.1.1";
@@ -33,6 +31,7 @@
       useGoogleAPIs = false;
       useGoogleTVAddOns = false;
     };
+    lib = pkgs.lib;
     pinnedJDK = pkgs.jdk17;
 
     pythonEnv = pkgs.python3.withPackages (ps: with ps; [
@@ -51,7 +50,7 @@
     };
 
     devShell = let
-      prosody-newer-community-modules = unstable.prosody.overrideAttrs (old: {
+      prosody-newer-community-modules = pkgs.prosody.overrideAttrs (old: {
         communityModules = pkgs.fetchhg {
           url = "https://hg.prosody.im/prosody-modules";
           rev = "e3a3a6c86a9f";
@@ -103,7 +102,26 @@
       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/create_users.sh

@@ -0,0 +1,4 @@
+set -ex
+
+prosodyctl --config ./prosody.cfg.lua register testuser1 localhost abc123
+prosodyctl --config ./prosody.cfg.lua register testuser2 localhost abc123

integration_tests/pubspec.yaml

@@ -3,14 +3,16 @@ description: A sample command-line application.
 version: 1.0.0
 
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: ">=3.0.0 <4.0.0"
 
 dependencies:
-  logging: ^1.0.2
+  logging: ^1.3.0
-  moxxmpp: 0.3.0
+  moxxmpp:
-  moxxmpp_socket_tcp: 0.3.0
+    path: ../packages/moxxmpp
+  moxxmpp_socket_tcp:
+    path: ../packages/moxxmpp_socket_tcp
 
 dev_dependencies:
-  lints: ^2.0.0
+  build_runner: ^2.4.13
-  test: ^1.16.0
+  test: ^1.25.8
-  very_good_analysis: ^3.0.1
+  very_good_analysis: ^6.0.0

integration_tests/test/component_test.dart

@@ -4,6 +4,8 @@ import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
 import 'package:test/test.dart';
 
 class TestingTCPSocketWrapper extends TCPSocketWrapper {
+  TestingTCPSocketWrapper() : super(true);
+
   @override
   bool onBadCertificate(dynamic certificate, String domain) {
     return true;

integration_tests/test/sasl2_test.dart

@@ -4,6 +4,8 @@ import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
 import 'package:test/test.dart';
 
 class TestingTCPSocketWrapper extends TCPSocketWrapper {
+  TestingTCPSocketWrapper() : super(true);
+
   @override
   bool onBadCertificate(dynamic certificate, String domain) {
     return true;
@@ -27,7 +29,7 @@ void main() {
       ClientToServerNegotiator(),
       TestingTCPSocketWrapper(),
     )..connectionSettings = ConnectionSettings(
-        jid: JID.fromString('testuser@localhost'),
+        jid: JID.fromString('testuser1@localhost'),
         password: 'abc123',
         host: '127.0.0.1',
         port: 5222,
@@ -40,17 +42,18 @@ void main() {
     ]);
     await conn.registerFeatureNegotiators([
       SaslPlainNegotiator(),
+      SaslScramNegotiator(9, '', '', ScramHashType.sha1),
+      SaslScramNegotiator(10, '', '', ScramHashType.sha256),
       ResourceBindingNegotiator(),
       FASTSaslNegotiator(),
       Bind2Negotiator(),
       StartTlsNegotiator(),
-      Sasl2Negotiator(
+      Sasl2Negotiator()
-        userAgent: const UserAgent(
+        ..userAgent = const UserAgent(
           id: 'd4565fa7-4d72-4749-b3d3-740edbf87770',
           software: 'moxxmpp',
           device: "PapaTutuWawa's awesome device",
         ),
-      ),
     ]);
 
     final result = await conn.connect(

nix/pubcache.moxxmpp.nix

@@ -1,28 +1,30 @@
+# GENERATED BY LOCK2NIX.py
+# DO NOT EDIT BY HAND
 {fetchzip, runCommand} : rec {
   _fe_analyzer_shared = fetchzip {
-    sha256 = "1hyd5pmjcfyvfwhsc0wq6k0229abmqq5zn95g31hh42bklb2gci5";
+    sha256 = "15fh9ka41dw4qsynv07msq4i243fibprcmafdygw5x88f7m55fq3";
-    url = "https://pub.dartlang.org/packages/_fe_analyzer_shared/versions/50.0.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/_fe_analyzer_shared/versions/61.0.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   analyzer = fetchzip {
-    sha256 = "0niy5b3w39aywpjpw5a84pxdilhh3zzv1c22x8ywml756pybmj4r";
+    sha256 = "0w604zngxwfx0xqxvhbxrhdh04wgm6ad6a1lbwnyvmk57amv44np";
-    url = "https://pub.dartlang.org/packages/analyzer/versions/5.2.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/analyzer/versions/5.13.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   args = fetchzip {
-    sha256 = "0c78zkzg2d2kzw1qrpiyrj1qvm4pr0yhnzapbqk347m780ha408g";
+    sha256 = "01ps253280c6dbx0vncw4wga4l2qp1zx779qjj2x06xzb3744zbz";
-    url = "https://pub.dartlang.org/packages/args/versions/2.3.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/args/versions/2.4.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   async = fetchzip {
-    sha256 = "00hhylamsjcqmcbxlsrfimri63gb384l31r9mqvacn6c6bvk4yfx";
+    sha256 = "0hfgvjajp5c2mw68186hgrk9v5zjhhi149hlhl0fap274p2v1g3q";
-    url = "https://pub.dartlang.org/packages/async/versions/2.10.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/async/versions/2.11.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -49,29 +51,29 @@
   };
 
   build_daemon = fetchzip {
-    sha256 = "0b6hnwjc3gi5g7cnpy8xyiqigcrs0xp51c7y7v1pqn9v75g25w6j";
+    sha256 = "1wn7bq846vgdj62bkh9h25l95xdsndv0jdyw52nyr0591l3bpg3h";
-    url = "https://pub.dartlang.org/packages/build_daemon/versions/3.1.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/build_daemon/versions/3.1.1.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   build_resolvers = fetchzip {
-    sha256 = "0fnrisgq6rnvbqsf8v43hb11kr1qq6azrxbsvx3wwimd37nxx8m5";
+    sha256 = "00h9abhrfmnl0xxziyf6p68sxnbv2ww1c4dhgpnz00mzbmamnq5c";
-    url = "https://pub.dartlang.org/packages/build_resolvers/versions/2.1.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/build_resolvers/versions/2.3.1.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   build_runner = fetchzip {
-    sha256 = "0246bxl9rxgil55fhfzi7csd9a56blj9s1j1z79717hiyzsr60x6";
+    sha256 = "0b5ha1l6k0gn2swqgqvfy2vl58klf81sxrjnmk0p7rj1wzbqjm7l";
-    url = "https://pub.dartlang.org/packages/build_runner/versions/2.3.2.tar.gz";
+    url = "https://pub.dartlang.org/packages/build_runner/versions/2.3.3.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   build_runner_core = fetchzip {
-    sha256 = "0bpil0fw0dag3vbnin9p945ymi7xjgkiy7jrq9j52plljf7cnf5z";
+    sha256 = "07r1kfy6ylm4i4xrb24ns8l26h4h1lgcskmnf8wvq2rd5d5hq790";
-    url = "https://pub.dartlang.org/packages/build_runner_core/versions/7.2.7.tar.gz";
+    url = "https://pub.dartlang.org/packages/build_runner_core/versions/7.2.7%2B1.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -84,29 +86,29 @@
   };
 
   built_value = fetchzip {
-    sha256 = "0sslr4258snvcj8qhbdk6wapka174als0viyxddwqlnhs7dlci8i";
+    sha256 = "1y84imf9xqqy3gnd5zz9bcln6mycy7qx35r70b0izm31ismlbzkv";
-    url = "https://pub.dartlang.org/packages/built_value/versions/8.4.2.tar.gz";
+    url = "https://pub.dartlang.org/packages/built_value/versions/8.6.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   checked_yaml = fetchzip {
-    sha256 = "1gf7ankc5jb7mk17br87ajv05pfg6vb8nf35ay6c35w8jp70ra7k";
+    sha256 = "1sn01yrmj0pkijn08g3v45c3zmyvdygk9svigkkzybgicdwlkpqs";
-    url = "https://pub.dartlang.org/packages/checked_yaml/versions/2.0.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/checked_yaml/versions/2.0.3.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   code_builder = fetchzip {
-    sha256 = "1vl9dl23yd0zjw52ndrazijs6dw83fg1rvyb2gfdpd6n1lj9nbhg";
+    sha256 = "1shgl7mxiyv0hhw326yqj2b9jxi1h74qxmsnxf1d1xc6yz766p9a";
-    url = "https://pub.dartlang.org/packages/code_builder/versions/4.3.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/code_builder/versions/4.6.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   collection = fetchzip {
-    sha256 = "1iyl3v3j7mj3sxjf63b1kc182fwrwd04mjp5x2i61hic8ihfw545";
+    sha256 = "1mr8j0078c4z9hhckiq8m735rggsazwfprm0w9gisil51vh7j2mk";
-    url = "https://pub.dartlang.org/packages/collection/versions/1.17.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/collection/versions/1.18.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -119,29 +121,29 @@
   };
 
   coverage = fetchzip {
-    sha256 = "0akbg1yp2h4vprc8r9xvrpgvp5d26h7m80h5sbzgr5dlis1bcw0d";
+    sha256 = "1yy9bgkax5b6kk7qa07p452v82fyj4rl1j03fn366ywyvhfrh6lp";
-    url = "https://pub.dartlang.org/packages/coverage/versions/1.6.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/coverage/versions/1.6.3.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   crypto = fetchzip {
-    sha256 = "1kjfb8fvdxazmv9ps2iqdhb8kcr31115h0nwn6v4xmr71k8jb8ds";
+    sha256 = "100ai8qa4p3dyvvd60c4xa9p0gm06yh0d68xgcfm3giraad8xmqj";
-    url = "https://pub.dartlang.org/packages/crypto/versions/3.0.2.tar.gz";
+    url = "https://pub.dartlang.org/packages/crypto/versions/3.0.3.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   cryptography = fetchzip {
-    sha256 = "0jqph45d9lbhdakprnb84c3qhk4aq05hhb1pmn8w23yhl41ypijs";
+    sha256 = "1yxn9slqq93ri81fbr2nbsinz0mpk9wk39ny076ja8q31d4i8v3f";
-    url = "https://pub.dartlang.org/packages/cryptography/versions/2.0.5.tar.gz";
+    url = "https://pub.dartlang.org/packages/cryptography/versions/2.5.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   dart_style = fetchzip {
-    sha256 = "01wg15kalbjlh4i3xbawc9zk8yrk28qhak7xp7mlwn2syhdckn7v";
+    sha256 = "0cjhrb1hs8iw9smmfd0fgnxq3nm0w8sz17l6q6svyz6kif19wk9k";
-    url = "https://pub.dartlang.org/packages/dart_style/versions/2.2.4.tar.gz";
+    url = "https://pub.dartlang.org/packages/dart_style/versions/2.3.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -154,43 +156,29 @@
   };
 
   fixnum = fetchzip {
-    sha256 = "1m8cdfqp9d6w1cik3fwz9bai1wf9j11rjv2z0zlv7ich87q9kkjk";
+    sha256 = "0nqrzj41ys8dpxf1x70r0kfj1avj0f2j2b7498k8kvc0i9c5asz7";
-    url = "https://pub.dartlang.org/packages/fixnum/versions/1.0.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/fixnum/versions/1.1.0.tar.gz";
-    stripRoot = false;
-    extension = "tar.gz";
-  };
-
-  freezed = fetchzip {
-    sha256 = "1i9s4djf4vlz56zqn8brcck3n7sk07qay23wmaan991cqydd10iq";
-    url = "https://pub.dartlang.org/packages/freezed/versions/2.1.1.tar.gz";
-    stripRoot = false;
-    extension = "tar.gz";
-  };
-
-  freezed_annotation = fetchzip {
-    sha256 = "0ym120dh1lpfnb68gxh1finm8p9l445q5x10aw8269y469b9k9z3";
-    url = "https://pub.dartlang.org/packages/freezed_annotation/versions/2.1.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   frontend_server_client = fetchzip {
-    sha256 = "0nv4avkv2if9hdcfzckz36f3mclv7vxchivrg8j3miaqhnjvv4bj";
+    sha256 = "096v7ycix5hgnk750s1qgykyghl2mymhdkg39jrlk3kbj6xygq5b";
-    url = "https://pub.dartlang.org/packages/frontend_server_client/versions/3.1.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/frontend_server_client/versions/3.2.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   glob = fetchzip {
-    sha256 = "0a6gbwsbz6rkg35dkff0zv88rvcflqdmda90hdfpn7jp1z1w9rhs";
+    sha256 = "0ffab3azx8zkma36mk6wnig8bn8g5g0vjrq2gl21y77rxgw9iqxj";
-    url = "https://pub.dartlang.org/packages/glob/versions/2.1.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/glob/versions/2.1.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   graphs = fetchzip {
-    sha256 = "0cr6dgs1a7ln2ir5gd0kiwpn787lk4dwhqfjv8876hkkr1rv80m9";
+    sha256 = "0fda0j8y6sq1rc9zpzglrzysl5h49y2ji1wq2lq0wx2c609dxm7f";
-    url = "https://pub.dartlang.org/packages/graphs/versions/2.2.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/graphs/versions/2.3.1.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -217,78 +205,78 @@
   };
 
   io = fetchzip {
-    sha256 = "1bp5l8hkrp6fjj7zw9af51hxyp52sjspc5558lq0lmi453l0czni";
+    sha256 = "101kd0rw26vglmr1m5p130kbrp3k7dk4p5nr77wsbwgg53w8c0d4";
-    url = "https://pub.dartlang.org/packages/io/versions/1.0.3.tar.gz";
+    url = "https://pub.dartlang.org/packages/io/versions/1.0.4.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   js = fetchzip {
-    sha256 = "13fbxgyg1v6bmzvxamg6494vk3923fn3mgxj6f4y476aqwk99n50";
+    sha256 = "124a9yqrjdw3p4nnirab9hm9ziwraldlw4q5cb3sr0dcrli74qpw";
-    url = "https://pub.dartlang.org/packages/js/versions/0.6.5.tar.gz";
+    url = "https://pub.dartlang.org/packages/js/versions/0.6.7.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   json_annotation = fetchzip {
-    sha256 = "1p9nvn33psx2zbalhyqjw8gr4agd76jj5jq0fdz0i584c7l77bby";
+    sha256 = "1jjw7p8qyqajgdq4jqvxipq5w0qrq9dpi1qmia70pk995akryh6m";
-    url = "https://pub.dartlang.org/packages/json_annotation/versions/4.7.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/json_annotation/versions/4.8.1.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   json_serializable = fetchzip {
-    sha256 = "04d7laaxrbiybcgbv3y223hy8d6n9f84h5lv9sv79zd9ffzkb2hg";
+    sha256 = "1pmidql9x6s2pbhdx9x20pwqwvwpfkvrz0h0cm1f8pqis76c90hb";
-    url = "https://pub.dartlang.org/packages/json_serializable/versions/6.5.4.tar.gz";
+    url = "https://pub.dartlang.org/packages/json_serializable/versions/6.6.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   logging = fetchzip {
-    sha256 = "0hl1mjh662c44ci7z60x92i0jsyqg1zm6k6fc89n9pdcxsqdpwfs";
+    sha256 = "124hfjs66r30p92ndfmy5fymgy66yk9in97h8sq6fi7r78pqyc7g";
-    url = "https://pub.dartlang.org/packages/logging/versions/1.0.2.tar.gz";
+    url = "https://pub.dartlang.org/packages/logging/versions/1.2.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   matcher = fetchzip {
-    sha256 = "0pjgc38clnjbv124n8bh724db1wcc4kk125j7dxl0icz7clvm0p0";
+    sha256 = "0inznqkrxqnq09lcbwvda3xd07qfm1k3aa6dv1wy39gvci8hybss";
-    url = "https://pub.dartlang.org/packages/matcher/versions/0.12.13.tar.gz";
+    url = "https://pub.dartlang.org/packages/matcher/versions/0.12.16.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   meta = fetchzip {
-    sha256 = "01kqdd25nln5a219pr94s66p27m0kpqz0wpmwnm24kdy3ngif1v5";
+    sha256 = "1l3zaz6q2s9mnm7s674xshsfqspy79p5kdbbnc99rf2l76avv4h3";
-    url = "https://pub.dartlang.org/packages/meta/versions/1.8.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/meta/versions/1.9.1.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   mime = fetchzip {
-    sha256 = "1dr3qikzvp10q1saka7azki5gk2kkf2v7k9wfqjsyxmza2zlv896";
+    sha256 = "1dha9z64bsz8xhi0p62vmlyikr8xwbdlrw90hxghmm3rdgd9h25w";
-    url = "https://pub.dartlang.org/packages/mime/versions/1.0.2.tar.gz";
+    url = "https://pub.dartlang.org/packages/mime/versions/1.0.4.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   moxlib = fetchzip {
-    sha256 = "1j52xglpwy8c7dbylc3f6vrh0p52xhhwqs4h0qcqk8c1rvjn5czq";
+    sha256 = "1qaacmcqhq33grn2nq8sn23ki62dcmw0fqy589xm1zv6w0pzfmsk";
-    url = "https://git.polynom.me/api/packages/moxxy/pub/api/packages/moxlib/files/0.1.5.tar.gz";
+    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 = "0i0gfc2yqa09182vc01lj47qpq98kfm9m8h4n8c5fby0mjd0lvyx";
+    sha256 = "12ajg76r9aqmqkavvlxbnb3sszg1szcq3f30badkd0xc25mnhyh8";
-    url = "https://pub.dartlang.org/packages/node_preamble/versions/2.0.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/node_preamble/versions/2.0.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   omemo_dart = fetchzip {
-    sha256 = "09x3jqa11hjdjp31nxnz91j6jssbc2f8a1lh44fmkc0d79hs8bbi";
+    sha256 = "0fhf89ic5mdyld25l6rfb37a1fk1f0f2b4d72xi4r7pvr0ddjhz8";
-    url = "https://git.polynom.me/api/packages/PapaTutuWawa/pub/api/packages/omemo_dart/files/0.4.3.tar.gz";
+    url = "https://git.polynom.me/api/packages/PapaTutuWawa/pub/api/packages/omemo_dart/files/0.5.1.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -301,8 +289,8 @@
   };
 
   path = fetchzip {
-    sha256 = "16ggdh29ciy7h8sdshhwmxn6dd12sfbykf2j82c56iwhhlljq181";
+    sha256 = "1mjdhq2fsz6i9krhp2mnaks2bcw34sa4p7mg0v6njk8dgx2754iv";
-    url = "https://pub.dartlang.org/packages/path/versions/1.8.2.tar.gz";
+    url = "https://pub.dartlang.org/packages/path/versions/1.8.3.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -315,8 +303,8 @@
   };
 
   petitparser = fetchzip {
-    sha256 = "1pqqqqiy9ald24qsi24q9qrr0zphgpsrnrv9rlx4vwr6xak7d8c0";
+    sha256 = "19zqrpb1z77aw1k2s8rsxdfxczzv9934g2rdfj2jyiv3pqgdq8gh";
-    url = "https://pub.dartlang.org/packages/petitparser/versions/5.1.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/petitparser/versions/5.4.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -335,16 +323,30 @@
     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 = "1vsj5c1f2dza4l5zmjix4zh65lp8gsg6pw01h57pijx2id0g4bwi";
+    sha256 = "0wpcfz1crxipbjm18m71pl4vl2ra8vw1n93ff8snr54mmlyfb9z1";
-    url = "https://pub.dartlang.org/packages/pub_semver/versions/2.1.2.tar.gz";
+    url = "https://pub.dartlang.org/packages/pub_semver/versions/2.1.4.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   pubspec_parse = fetchzip {
-    sha256 = "19dmr9k4wsqjnhlzp1lbrw8dv7a1gnwmr8l5j9zlw407rmfg20d1";
+    sha256 = "0dj8sf1w61g7vh1ly3sl690z0nwllzjzbapxswmgsglr0ndcyrs1";
-    url = "https://pub.dartlang.org/packages/pubspec_parse/versions/1.2.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/pubspec_parse/versions/1.2.3.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -364,43 +366,43 @@
   };
 
   shelf = fetchzip {
-    sha256 = "0x2xl7glrnq0hdxpy2i94a4wxbdrd6dm46hvhzgjn8alsm8z0wz1";
+    sha256 = "10yk98nadrgj5d3r3241kdaywjjs1j10mg8gacv80kg1mhcfdrxp";
-    url = "https://pub.dartlang.org/packages/shelf/versions/1.4.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/shelf/versions/1.4.1.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   shelf_packages_handler = fetchzip {
-    sha256 = "199rbdbifj46lg3iynznnsbs8zr4dfcw0s7wan8v73nvpqvli82q";
+    sha256 = "1h8s42nff9ar0xn7yb42m64lpvmqzq8wranqrkkixdnp7w3pmv1x";
-    url = "https://pub.dartlang.org/packages/shelf_packages_handler/versions/3.0.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/shelf_packages_handler/versions/3.0.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   shelf_static = fetchzip {
-    sha256 = "1kqbaslz7bna9lldda3ibrjg0gczbzlwgm9cic8shg0bnl0v3s34";
+    sha256 = "1bcqynn2z2syrigmrclxgg8hjhd1x9742938i62cicbaga6vclaz";
-    url = "https://pub.dartlang.org/packages/shelf_static/versions/1.1.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/shelf_static/versions/1.1.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   shelf_web_socket = fetchzip {
-    sha256 = "0rr87nx2wdf9alippxiidqlgi82fbprnsarr1jswg9qin0yy4jpn";
+    sha256 = "110b5hrqwpnmq16shxxzjmcih5yfs5kh80dn8avfv0xj5iv7n94c";
-    url = "https://pub.dartlang.org/packages/shelf_web_socket/versions/1.0.3.tar.gz";
+    url = "https://pub.dartlang.org/packages/shelf_web_socket/versions/1.0.4.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   source_gen = fetchzip {
-    sha256 = "1kxgx782lzpjhv736h0pz3lnxpcgiy05h0ysy0q77gix8q09i1hz";
+    sha256 = "1jql5zccv4vnbbvwcpyyvz8l27pg1rviqbp4vrks5313nf4b0kjg";
-    url = "https://pub.dartlang.org/packages/source_gen/versions/1.2.6.tar.gz";
+    url = "https://pub.dartlang.org/packages/source_gen/versions/1.3.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   source_helper = fetchzip {
-    sha256 = "044kzmzlfpx93s4raz5avijahizmvai0zvl0lbm4wi93ynhdp1pd";
+    sha256 = "0mdd02vhcdcv9n58gzbx2q0bphwj0alz312ca1a8xpkf8jx3y8v4";
-    url = "https://pub.dartlang.org/packages/source_helper/versions/1.3.3.tar.gz";
+    url = "https://pub.dartlang.org/packages/source_helper/versions/1.3.4.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -413,29 +415,29 @@
   };
 
   source_maps = fetchzip {
-    sha256 = "18ixrlz3l2alk3hp0884qj0mcgzhxmjpg6nq0n1200pfy62pc4z6";
+    sha256 = "004lcfka01agxjdw7zjhrffdkisvgx5s61b5gsl8qqk2jd1rswa7";
-    url = "https://pub.dartlang.org/packages/source_maps/versions/0.10.11.tar.gz";
+    url = "https://pub.dartlang.org/packages/source_maps/versions/0.10.12.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   source_span = fetchzip {
-    sha256 = "1lq4sy7lw15qsv9cijf6l48p16qr19r7njzwr4pxn8vv1kh6rb86";
+    sha256 = "1nybnf7l5chslp4fczhqnrgrhymy844lw7qrj6y08i626dshrd46";
-    url = "https://pub.dartlang.org/packages/source_span/versions/1.9.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/source_span/versions/1.10.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   stack_trace = fetchzip {
-    sha256 = "0bggqvvpkrfvqz24bnir4959k0c45azc3zivk4lyv3mvba6092na";
+    sha256 = "0xpk2cvmgdh46iwip9jsb54fqx13jnina8pk03akxkmsxvag5izb";
-    url = "https://pub.dartlang.org/packages/stack_trace/versions/1.11.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/stack_trace/versions/1.11.1.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   stream_channel = fetchzip {
-    sha256 = "054by84c60yxphr3qgg6f82gg6d22a54aqjp265anlm8dwz1ji32";
+    sha256 = "0nrlw6zcscgnn6818krkbgs9qiv3f7q8pa7ljw1bqkrsb7xabm8s";
-    url = "https://pub.dartlang.org/packages/stream_channel/versions/2.1.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/stream_channel/versions/2.1.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -455,8 +457,8 @@
   };
 
   synchronized = fetchzip {
-    sha256 = "1j6108cq1hbcqpwhk9sah8q3gcidd7222bzhha2nk9syxhzqy82i";
+    sha256 = "1fx1z1p5qkn4qnq24riw5s86vmq645ppg8f74iyv2fc9rvr301ar";
-    url = "https://pub.dartlang.org/packages/synchronized/versions/3.0.0%2B2.tar.gz";
+    url = "https://pub.dartlang.org/packages/synchronized/versions/3.1.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -469,36 +471,36 @@
   };
 
   test = fetchzip {
-    sha256 = "08kimbjvkdw3bkj7za36p3yqdr8dnlb5v30c250kvdncb7k09h4x";
+    sha256 = "002phlj2pg6nll5hv449izxbqk29zwmwc77d0jx2iimz18dgy2r5";
-    url = "https://pub.dartlang.org/packages/test/versions/1.22.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/test/versions/1.24.3.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   test_api = fetchzip {
-    sha256 = "0mfyjpqkkmaqdh7xygrydx12591wq9ll816f61n80dc6rmkdx7px";
+    sha256 = "0as1xcywjrd2zax3cm56qmnac12shf8c1ynnzzjwnggm23f61dxb";
-    url = "https://pub.dartlang.org/packages/test_api/versions/0.4.16.tar.gz";
+    url = "https://pub.dartlang.org/packages/test_api/versions/0.6.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   test_core = fetchzip {
-    sha256 = "1r8dnvkxxvh55z1c8lrsja1m0dkf5i4lgwwqixcx0mqvxx5w3005";
+    sha256 = "1cx2rmz1xzk5z5yh8fpbsrsz4mgjanrw4xvnp0qzdnm2d7vhaq0y";
-    url = "https://pub.dartlang.org/packages/test_core/versions/0.4.20.tar.gz";
+    url = "https://pub.dartlang.org/packages/test_core/versions/0.5.3.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   timing = fetchzip {
-    sha256 = "0a02znvy0fbzr0n4ai67pp8in7w6m768aynkk1kp5lnmgy17ppsg";
+    sha256 = "15jvxsw7v0gwbdlykma60l1qlhlzb3brh6m0sg2bgbfir4l5s9gw";
-    url = "https://pub.dartlang.org/packages/timing/versions/1.0.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/timing/versions/1.0.1.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   typed_data = fetchzip {
-    sha256 = "1x402bvyzdmdvmyqhyfamjxf54p9j8sa8ns2n5dwsdhnfqbw859g";
+    sha256 = "0q6ggc52vfpr8kqaq69h757wy942hvgshhnsr2pjdinb4zk2sxl1";
-    url = "https://pub.dartlang.org/packages/typed_data/versions/1.3.1.tar.gz";
+    url = "https://pub.dartlang.org/packages/typed_data/versions/1.3.2.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -511,8 +513,8 @@
   };
 
   uuid = fetchzip {
-    sha256 = "12lsynr07lw9848jknmzxvzn3ia12xdj07iiva0vg0qjvpq7ladg";
+    sha256 = "1nh1hxfr6bhyadqqcxrpwrphmm75f1iq4rzfjdwa2486xwlh7vx3";
-    url = "https://pub.dartlang.org/packages/uuid/versions/3.0.5.tar.gz";
+    url = "https://pub.dartlang.org/packages/uuid/versions/3.0.7.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -525,8 +527,8 @@
   };
 
   vm_service = fetchzip {
-    sha256 = "05xaxaxzyfls6jklw1hzws2jmina1cjk10gbl7a63djh1ghnzjb5";
+    sha256 = "15ail7rbaq9ksg73cc0mw2k5imbiidl95yfd4v49k81gp5xmj92w";
-    url = "https://pub.dartlang.org/packages/vm_service/versions/9.4.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/vm_service/versions/11.10.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -539,8 +541,8 @@
   };
 
   web_socket_channel = fetchzip {
-    sha256 = "147amn05v1f1a1grxjr7yzgshrczjwijwiywggsv6dgic8kxyj5a";
+    sha256 = "0f9441c4zifb5qadpjg319dcilimpkdhfacnkl543802bf8qjn4w";
-    url = "https://pub.dartlang.org/packages/web_socket_channel/versions/2.2.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/web_socket_channel/versions/2.4.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
@@ -553,262 +555,262 @@
   };
 
   xml = fetchzip {
-    sha256 = "0jwknkfcnb5svg6r01xjsj0aiw06mlx54pgay1ymaaqm2mjhyz01";
+    sha256 = "120azx71gazvrrn07vd83vrffzrhsqnmf9rdjxl73rra9py8ixiy";
-    url = "https://pub.dartlang.org/packages/xml/versions/6.2.0.tar.gz";
+    url = "https://pub.dartlang.org/packages/xml/versions/6.3.0.tar.gz";
     stripRoot = false;
     extension = "tar.gz";
   };
 
   yaml = fetchzip {
-    sha256 = "0mqqmzn3c9rr38b5xm312fz1vyp6vb36lm477r9hak77bxzpp0iw";
+    sha256 = "0awh9dynbhrlq8zgszaiyxbyyn9b6wyps1zww4z2lx62nbma0pda";
-    url = "https://pub.dartlang.org/packages/yaml/versions/3.1.1.tar.gz";
+    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.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${_fe_analyzer_shared} $out/hosted/pub.dartlang.org/_fe_analyzer_shared-50.0.0
+    ln -s ${_fe_analyzer_shared} $out/hosted/pub.dev/_fe_analyzer_shared-61.0.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${analyzer} $out/hosted/pub.dartlang.org/analyzer-5.2.0
+    ln -s ${analyzer} $out/hosted/pub.dev/analyzer-5.13.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${args} $out/hosted/pub.dartlang.org/args-2.3.1
+    ln -s ${args} $out/hosted/pub.dev/args-2.4.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${async} $out/hosted/pub.dartlang.org/async-2.10.0
+    ln -s ${async} $out/hosted/pub.dev/async-2.11.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${boolean_selector} $out/hosted/pub.dartlang.org/boolean_selector-2.1.1
+    ln -s ${boolean_selector} $out/hosted/pub.dev/boolean_selector-2.1.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${build} $out/hosted/pub.dartlang.org/build-2.3.1
+    ln -s ${build} $out/hosted/pub.dev/build-2.3.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${build_config} $out/hosted/pub.dartlang.org/build_config-1.1.1
+    ln -s ${build_config} $out/hosted/pub.dev/build_config-1.1.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${build_daemon} $out/hosted/pub.dartlang.org/build_daemon-3.1.0
+    ln -s ${build_daemon} $out/hosted/pub.dev/build_daemon-3.1.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${build_resolvers} $out/hosted/pub.dartlang.org/build_resolvers-2.1.0
+    ln -s ${build_resolvers} $out/hosted/pub.dev/build_resolvers-2.3.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${build_runner} $out/hosted/pub.dartlang.org/build_runner-2.3.2
+    ln -s ${build_runner} $out/hosted/pub.dev/build_runner-2.3.3
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${build_runner_core} $out/hosted/pub.dartlang.org/build_runner_core-7.2.7
+    ln -s ${build_runner_core} $out/hosted/pub.dev/build_runner_core-7.2.7+1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${built_collection} $out/hosted/pub.dartlang.org/built_collection-5.1.1
+    ln -s ${built_collection} $out/hosted/pub.dev/built_collection-5.1.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${built_value} $out/hosted/pub.dartlang.org/built_value-8.4.2
+    ln -s ${built_value} $out/hosted/pub.dev/built_value-8.6.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${checked_yaml} $out/hosted/pub.dartlang.org/checked_yaml-2.0.1
+    ln -s ${checked_yaml} $out/hosted/pub.dev/checked_yaml-2.0.3
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${code_builder} $out/hosted/pub.dartlang.org/code_builder-4.3.0
+    ln -s ${code_builder} $out/hosted/pub.dev/code_builder-4.6.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${collection} $out/hosted/pub.dartlang.org/collection-1.17.0
+    ln -s ${collection} $out/hosted/pub.dev/collection-1.18.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${convert} $out/hosted/pub.dartlang.org/convert-3.1.1
+    ln -s ${convert} $out/hosted/pub.dev/convert-3.1.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${coverage} $out/hosted/pub.dartlang.org/coverage-1.6.1
+    ln -s ${coverage} $out/hosted/pub.dev/coverage-1.6.3
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${crypto} $out/hosted/pub.dartlang.org/crypto-3.0.2
+    ln -s ${crypto} $out/hosted/pub.dev/crypto-3.0.3
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${cryptography} $out/hosted/pub.dartlang.org/cryptography-2.0.5
+    ln -s ${cryptography} $out/hosted/pub.dev/cryptography-2.5.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${dart_style} $out/hosted/pub.dartlang.org/dart_style-2.2.4
+    ln -s ${dart_style} $out/hosted/pub.dev/dart_style-2.3.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${file} $out/hosted/pub.dartlang.org/file-6.1.4
+    ln -s ${file} $out/hosted/pub.dev/file-6.1.4
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${fixnum} $out/hosted/pub.dartlang.org/fixnum-1.0.1
+    ln -s ${fixnum} $out/hosted/pub.dev/fixnum-1.1.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${freezed} $out/hosted/pub.dartlang.org/freezed-2.1.1
+    ln -s ${frontend_server_client} $out/hosted/pub.dev/frontend_server_client-3.2.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${freezed_annotation} $out/hosted/pub.dartlang.org/freezed_annotation-2.1.0
+    ln -s ${glob} $out/hosted/pub.dev/glob-2.1.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${frontend_server_client} $out/hosted/pub.dartlang.org/frontend_server_client-3.1.0
+    ln -s ${graphs} $out/hosted/pub.dev/graphs-2.3.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${glob} $out/hosted/pub.dartlang.org/glob-2.1.0
+    ln -s ${hex} $out/hosted/pub.dev/hex-0.2.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${graphs} $out/hosted/pub.dartlang.org/graphs-2.2.0
+    ln -s ${http_multi_server} $out/hosted/pub.dev/http_multi_server-3.2.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${hex} $out/hosted/pub.dartlang.org/hex-0.2.0
+    ln -s ${http_parser} $out/hosted/pub.dev/http_parser-4.0.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${http_multi_server} $out/hosted/pub.dartlang.org/http_multi_server-3.2.1
+    ln -s ${io} $out/hosted/pub.dev/io-1.0.4
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${http_parser} $out/hosted/pub.dartlang.org/http_parser-4.0.2
+    ln -s ${js} $out/hosted/pub.dev/js-0.6.7
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${io} $out/hosted/pub.dartlang.org/io-1.0.3
+    ln -s ${json_annotation} $out/hosted/pub.dev/json_annotation-4.8.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${js} $out/hosted/pub.dartlang.org/js-0.6.5
+    ln -s ${json_serializable} $out/hosted/pub.dev/json_serializable-6.6.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${json_annotation} $out/hosted/pub.dartlang.org/json_annotation-4.7.0
+    ln -s ${logging} $out/hosted/pub.dev/logging-1.2.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${json_serializable} $out/hosted/pub.dartlang.org/json_serializable-6.5.4
+    ln -s ${matcher} $out/hosted/pub.dev/matcher-0.12.16
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${logging} $out/hosted/pub.dartlang.org/logging-1.0.2
+    ln -s ${meta} $out/hosted/pub.dev/meta-1.9.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${matcher} $out/hosted/pub.dartlang.org/matcher-0.12.13
+    ln -s ${mime} $out/hosted/pub.dev/mime-1.0.4
-
-    mkdir -p $out/hosted/pub.dartlang.org
-    ln -s ${meta} $out/hosted/pub.dartlang.org/meta-1.8.0
-
-    mkdir -p $out/hosted/pub.dartlang.org
-    ln -s ${mime} $out/hosted/pub.dartlang.org/mime-1.0.2
 
     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-0.1.5
+    ln -s ${moxlib} $out/hosted/git.polynom.me%47api%47packages%47Moxxy%47pub%47/moxlib-0.2.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${node_preamble} $out/hosted/pub.dartlang.org/node_preamble-2.0.1
+    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-0.4.3
+    ln -s ${omemo_dart} $out/hosted/git.polynom.me%47api%47packages%47PapaTutuWawa%47pub%47/omemo_dart-0.5.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${package_config} $out/hosted/pub.dartlang.org/package_config-2.1.0
+    ln -s ${package_config} $out/hosted/pub.dev/package_config-2.1.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${path} $out/hosted/pub.dartlang.org/path-1.8.2
+    ln -s ${path} $out/hosted/pub.dev/path-1.8.3
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${pedantic} $out/hosted/pub.dartlang.org/pedantic-1.11.1
+    ln -s ${pedantic} $out/hosted/pub.dev/pedantic-1.11.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${petitparser} $out/hosted/pub.dartlang.org/petitparser-5.1.0
+    ln -s ${petitparser} $out/hosted/pub.dev/petitparser-5.4.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${pinenacl} $out/hosted/pub.dartlang.org/pinenacl-0.5.1
+    ln -s ${pinenacl} $out/hosted/pub.dev/pinenacl-0.5.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${pool} $out/hosted/pub.dartlang.org/pool-1.5.1
+    ln -s ${pool} $out/hosted/pub.dev/pool-1.5.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${pub_semver} $out/hosted/pub.dartlang.org/pub_semver-2.1.2
+    ln -s ${protobuf} $out/hosted/pub.dev/protobuf-2.1.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${pubspec_parse} $out/hosted/pub.dartlang.org/pubspec_parse-1.2.1
+    ln -s ${protoc_plugin} $out/hosted/pub.dev/protoc_plugin-20.0.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${random_string} $out/hosted/pub.dartlang.org/random_string-2.3.1
+    ln -s ${pub_semver} $out/hosted/pub.dev/pub_semver-2.1.4
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${saslprep} $out/hosted/pub.dartlang.org/saslprep-1.0.2
+    ln -s ${pubspec_parse} $out/hosted/pub.dev/pubspec_parse-1.2.3
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${shelf} $out/hosted/pub.dartlang.org/shelf-1.4.0
+    ln -s ${random_string} $out/hosted/pub.dev/random_string-2.3.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${shelf_packages_handler} $out/hosted/pub.dartlang.org/shelf_packages_handler-3.0.1
+    ln -s ${saslprep} $out/hosted/pub.dev/saslprep-1.0.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${shelf_static} $out/hosted/pub.dartlang.org/shelf_static-1.1.1
+    ln -s ${shelf} $out/hosted/pub.dev/shelf-1.4.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${shelf_web_socket} $out/hosted/pub.dartlang.org/shelf_web_socket-1.0.3
+    ln -s ${shelf_packages_handler} $out/hosted/pub.dev/shelf_packages_handler-3.0.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${source_gen} $out/hosted/pub.dartlang.org/source_gen-1.2.6
+    ln -s ${shelf_static} $out/hosted/pub.dev/shelf_static-1.1.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${source_helper} $out/hosted/pub.dartlang.org/source_helper-1.3.3
+    ln -s ${shelf_web_socket} $out/hosted/pub.dev/shelf_web_socket-1.0.4
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${source_map_stack_trace} $out/hosted/pub.dartlang.org/source_map_stack_trace-2.1.1
+    ln -s ${source_gen} $out/hosted/pub.dev/source_gen-1.3.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${source_maps} $out/hosted/pub.dartlang.org/source_maps-0.10.11
+    ln -s ${source_helper} $out/hosted/pub.dev/source_helper-1.3.4
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${source_span} $out/hosted/pub.dartlang.org/source_span-1.9.1
+    ln -s ${source_map_stack_trace} $out/hosted/pub.dev/source_map_stack_trace-2.1.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${stack_trace} $out/hosted/pub.dartlang.org/stack_trace-1.11.0
+    ln -s ${source_maps} $out/hosted/pub.dev/source_maps-0.10.12
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${stream_channel} $out/hosted/pub.dartlang.org/stream_channel-2.1.1
+    ln -s ${source_span} $out/hosted/pub.dev/source_span-1.10.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${stream_transform} $out/hosted/pub.dartlang.org/stream_transform-2.1.0
+    ln -s ${stack_trace} $out/hosted/pub.dev/stack_trace-1.11.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${string_scanner} $out/hosted/pub.dartlang.org/string_scanner-1.2.0
+    ln -s ${stream_channel} $out/hosted/pub.dev/stream_channel-2.1.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${synchronized} $out/hosted/pub.dartlang.org/synchronized-3.0.0+2
+    ln -s ${stream_transform} $out/hosted/pub.dev/stream_transform-2.1.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${term_glyph} $out/hosted/pub.dartlang.org/term_glyph-1.2.1
+    ln -s ${string_scanner} $out/hosted/pub.dev/string_scanner-1.2.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${test} $out/hosted/pub.dartlang.org/test-1.22.0
+    ln -s ${synchronized} $out/hosted/pub.dev/synchronized-3.1.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${test_api} $out/hosted/pub.dartlang.org/test_api-0.4.16
+    ln -s ${term_glyph} $out/hosted/pub.dev/term_glyph-1.2.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${test_core} $out/hosted/pub.dartlang.org/test_core-0.4.20
+    ln -s ${test} $out/hosted/pub.dev/test-1.24.3
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${timing} $out/hosted/pub.dartlang.org/timing-1.0.0
+    ln -s ${test_api} $out/hosted/pub.dev/test_api-0.6.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${typed_data} $out/hosted/pub.dartlang.org/typed_data-1.3.1
+    ln -s ${test_core} $out/hosted/pub.dev/test_core-0.5.3
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${unorm_dart} $out/hosted/pub.dartlang.org/unorm_dart-0.2.0
+    ln -s ${timing} $out/hosted/pub.dev/timing-1.0.1
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${uuid} $out/hosted/pub.dartlang.org/uuid-3.0.5
+    ln -s ${typed_data} $out/hosted/pub.dev/typed_data-1.3.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${very_good_analysis} $out/hosted/pub.dartlang.org/very_good_analysis-3.1.0
+    ln -s ${unorm_dart} $out/hosted/pub.dev/unorm_dart-0.2.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${vm_service} $out/hosted/pub.dartlang.org/vm_service-9.4.0
+    ln -s ${uuid} $out/hosted/pub.dev/uuid-3.0.7
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${watcher} $out/hosted/pub.dartlang.org/watcher-1.0.2
+    ln -s ${very_good_analysis} $out/hosted/pub.dev/very_good_analysis-3.1.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${web_socket_channel} $out/hosted/pub.dartlang.org/web_socket_channel-2.2.0
+    ln -s ${vm_service} $out/hosted/pub.dev/vm_service-11.10.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${webkit_inspection_protocol} $out/hosted/pub.dartlang.org/webkit_inspection_protocol-1.2.0
+    ln -s ${watcher} $out/hosted/pub.dev/watcher-1.0.2
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${xml} $out/hosted/pub.dartlang.org/xml-6.2.0
+    ln -s ${web_socket_channel} $out/hosted/pub.dev/web_socket_channel-2.4.0
 
-    mkdir -p $out/hosted/pub.dartlang.org
+    mkdir -p $out/hosted/pub.dev
-    ln -s ${yaml} $out/hosted/pub.dartlang.org/yaml-3.1.1
+    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 +1,6 @@
+## 0.4.1
+- Moved FAST from staging to xep_0484.dart
+
 ## 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.
@@ -16,6 +19,16 @@
 - **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
 

packages/moxxmpp/lib/moxxmpp.dart

@@ -38,16 +38,17 @@ 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/util/typed_map.dart';
-export 'package:moxxmpp/src/xeps/staging/extensible_file_thumbnails.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';
@@ -63,6 +64,7 @@ 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';
@@ -85,6 +87,7 @@ 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';
@@ -92,3 +95,4 @@ export 'package:moxxmpp/src/xeps/xep_0447.dart';
 export 'package:moxxmpp/src/xeps/xep_0448.dart';
 export 'package:moxxmpp/src/xeps/xep_0449.dart';
 export 'package:moxxmpp/src/xeps/xep_0461.dart';
+export 'package:moxxmpp/src/xeps/xep_0484.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.
+/// (JID we sent a stanza to, the id of the sent stanza, the tag of the sent stanza).
-@immutable
+// ignore: avoid_private_typedef_functions
-class _StanzaSurrogateKey {
+typedef _StanzaCompositeKey = (String?, String, String);
-  const _StanzaSurrogateKey(this.sentTo, this.id, this.tag);
 
-  /// The JID the original stanza was sent to. We expect the result to come from the
+/// Callback function that returns the bare JID of the connection as a String.
-  /// same JID.
+typedef GetBareJidCallback = String Function();
-  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;
-  }
-}
 
 /// 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
+  /// Checks if the stanza [stanza] is being awaited.
-  /// the connection.
   /// If [stanza] is awaited, resolves the future and returns true. If not, returns
   /// false.
-  Future<bool> onData(XMLNode stanza, JID bareJid) async {
+  Future<bool> onData(XMLNode stanza) async {
-    assert(bareJid.isBare(), 'bareJid must be bare');
-
     final id = stanza.attributes['id'] as String?;
     if (id == null) return false;
 
-    final key = _StanzaSurrogateKey(
+    // Check if we want to send a stanza to our bare JID and replace it with null.
-      // Section 8.1.2.1 § 3 of RFC 6120 says that an empty "from" indicates that the
+    final from = stanza.attributes['from'] as String?;
-      // attribute is implicitly from our own bare JID.
+    final processedFrom =
-      stanza.attributes['from'] as String? ?? bareJid.toString(),
+        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/connection.dart

@@ -25,14 +25,12 @@ import 'package:moxxmpp/src/settings.dart';
 import 'package:moxxmpp/src/socket.dart';
 import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
+import 'package:moxxmpp/src/util/incoming_queue.dart';
 import 'package:moxxmpp/src/util/queue.dart';
 import 'package:moxxmpp/src/util/typed_map.dart';
 import 'package:moxxmpp/src/xeps/xep_0030/xep_0030.dart';
-import 'package:moxxmpp/src/xeps/xep_0198/types.dart';
 import 'package:moxxmpp/src/xeps/xep_0198/xep_0198.dart';
 import 'package:moxxmpp/src/xeps/xep_0352.dart';
-import 'package:synchronized/synchronized.dart';
 import 'package:uuid/uuid.dart';
 
 /// The states the XmppConnection can be in
@@ -51,6 +49,19 @@ enum XmppConnectionState {
   error
 }
 
+/// (The actual stanza handler, Name of the owning manager).
+typedef _StanzaHandlerWrapper = (StanzaHandler, String);
+
+/// Wrapper around [stanzaHandlerSortComparator] for [_StanzaHandlerWrapper].
+int _stanzaHandlerWrapperSortComparator(
+  _StanzaHandlerWrapper a,
+  _StanzaHandlerWrapper b,
+) {
+  final (ha, _) = a;
+  final (hb, _) = b;
+  return stanzaHandlerSortComparator(ha, hb);
+}
+
 /// This class is a connection to the server.
 class XmppConnection {
   XmppConnection(
@@ -60,7 +71,11 @@ class XmppConnection {
     this._socket, {
     this.connectingTimeout = const Duration(minutes: 2),
   })  : _reconnectionPolicy = reconnectionPolicy,
-        _connectivityManager = connectivityManager {
+        _connectivityManager = connectivityManager,
+        assert(
+          _socket.getDataStream().isBroadcast,
+          "The socket's data stream must be a broadcast stream",
+        ) {
     // Allow the reconnection policy to perform reconnections by itself
     _reconnectionPolicy.register(
       _attemptReconnection,
@@ -79,9 +94,15 @@ class XmppConnection {
       },
     );
 
+    _stanzaAwaiter = StanzaAwaiter(
+      () => connectionSettings.jid.toBare().toString(),
+    );
+    _incomingStanzaQueue = IncomingStanzaQueue(handleXmlStream, _stanzaAwaiter);
     _socketStream = _socket.getDataStream();
-    // TODO(Unknown): Handle on done
+    _socketStream
-    _socketStream.transform(_streamParser).forEach(handleXmlStream);
+        .transform(_streamParser)
+        .forEach(_incomingStanzaQueue.addStanza);
+    _socketStream.listen(_handleOnDataCallbacks);
     _socket.getEventStream().listen(handleSocketEvent);
 
     _stanzaQueue = AsyncStanzaQueue(
@@ -111,16 +132,16 @@ class XmppConnection {
   final ConnectivityManager _connectivityManager;
 
   /// A helper for handling await semantics with stanzas
-  final StanzaAwaiter _stanzaAwaiter = StanzaAwaiter();
+  late final StanzaAwaiter _stanzaAwaiter;
 
   /// Sorted list of handlers that we call or incoming and outgoing stanzas
-  final List<StanzaHandler> _incomingStanzaHandlers =
+  final List<_StanzaHandlerWrapper> _incomingStanzaHandlers =
       List.empty(growable: true);
-  final List<StanzaHandler> _incomingPreStanzaHandlers =
+  final List<_StanzaHandlerWrapper> _incomingPreStanzaHandlers =
       List.empty(growable: true);
-  final List<StanzaHandler> _outgoingPreStanzaHandlers =
+  final List<_StanzaHandlerWrapper> _outgoingPreStanzaHandlers =
       List.empty(growable: true);
-  final List<StanzaHandler> _outgoingPostStanzaHandlers =
+  final List<_StanzaHandlerWrapper> _outgoingPostStanzaHandlers =
       List.empty(growable: true);
   final StreamController<XmppEvent> _eventStreamController =
       StreamController.broadcast();
@@ -159,10 +180,6 @@ class XmppConnection {
   T? getNegotiatorById<T extends XmppFeatureNegotiatorBase>(String id) =>
       _negotiationsHandler.getNegotiatorById<T>(id);
 
-  /// Prevent data from being passed to _currentNegotiator.negotiator while the negotiator
-  /// is still running.
-  final Lock _negotiationLock = Lock();
-
   /// The logger for the class
   final Logger _log = Logger('XmppConnection');
 
@@ -171,6 +188,8 @@ class XmppConnection {
 
   bool get isAuthenticated => _isAuthenticated;
 
+  late final IncomingStanzaQueue _incomingStanzaQueue;
+
   late final AsyncStanzaQueue _stanzaQueue;
 
   /// Returns the JID we authenticate with and add the resource that we have bound.
@@ -200,18 +219,25 @@ class XmppConnection {
 
       _xmppManagers[manager.id] = manager;
 
-      _incomingStanzaHandlers.addAll(manager.getIncomingStanzaHandlers());
+      _incomingStanzaHandlers.addAll(
-      _incomingPreStanzaHandlers.addAll(manager.getIncomingPreStanzaHandlers());
+        manager.getIncomingStanzaHandlers().map((h) => (h, manager.name)),
-      _outgoingPreStanzaHandlers.addAll(manager.getOutgoingPreStanzaHandlers());
+      );
-      _outgoingPostStanzaHandlers
+      _incomingPreStanzaHandlers.addAll(
-          .addAll(manager.getOutgoingPostStanzaHandlers());
+        manager.getIncomingPreStanzaHandlers().map((h) => (h, manager.name)),
+      );
+      _outgoingPreStanzaHandlers.addAll(
+        manager.getOutgoingPreStanzaHandlers().map((h) => (h, manager.name)),
+      );
+      _outgoingPostStanzaHandlers.addAll(
+        manager.getOutgoingPostStanzaHandlers().map((h) => (h, manager.name)),
+      );
     }
 
     // Sort them
-    _incomingStanzaHandlers.sort(stanzaHandlerSortComparator);
+    _incomingStanzaHandlers.sort(_stanzaHandlerWrapperSortComparator);
-    _incomingPreStanzaHandlers.sort(stanzaHandlerSortComparator);
+    _incomingPreStanzaHandlers.sort(_stanzaHandlerWrapperSortComparator);
-    _outgoingPreStanzaHandlers.sort(stanzaHandlerSortComparator);
+    _outgoingPreStanzaHandlers.sort(_stanzaHandlerWrapperSortComparator);
-    _outgoingPostStanzaHandlers.sort(stanzaHandlerSortComparator);
+    _outgoingPostStanzaHandlers.sort(_stanzaHandlerWrapperSortComparator);
 
     // Run the post register callbacks
     for (final manager in _xmppManagers.values) {
@@ -292,6 +318,13 @@ class XmppConnection {
     return getManagerById(csiManager);
   }
 
+  /// Called whenever we receive data on the socket.
+  Future<void> _handleOnDataCallbacks(String _) async {
+    for (final manager in _xmppManagers.values) {
+      unawaited(manager.onData());
+    }
+  }
+
   /// Attempts to reconnect to the server by following an exponential backoff.
   Future<void> _attemptReconnection() async {
     _log.finest('_attemptReconnection: Setting state to notConnected');
@@ -314,7 +347,7 @@ class XmppConnection {
 
   /// Called when a stream ending error has occurred
   Future<void> handleError(XmppError error) async {
-    _log.severe('handleError called with ${error.toString()}');
+    _log.severe('handleError called with $error');
 
     // Whenever we encounter an error that would trigger a reconnection attempt while
     // the connection result is being awaited, don't attempt a reconnection but instead
@@ -477,8 +510,9 @@ class XmppConnection {
         false,
         false,
         newStanza,
-        TypedMap(),
+        details.extensions ?? TypedMap(),
         encrypted: details.encrypted,
+        shouldEncrypt: details.shouldEncrypt,
         forceEncryption: details.forceEncryption,
       ),
     );
@@ -516,7 +550,7 @@ class XmppConnection {
         // A stanza with no to attribute is for direct processing by the server. As such,
         // we can correlate it by just *assuming* we have that attribute
         // (RFC 6120 Section 8.1.1.1)
-        data.stanza.to ?? connectionSettings.jid.toBare().toString(),
+        data.stanza.to,
         data.stanza.id!,
         data.stanza.tag,
       )
@@ -533,15 +567,14 @@ class XmppConnection {
 
     // Run post-send handlers
     _log.fine('Running post stanza handlers..');
-    final extensions = TypedMap<StanzaHandlerExtension>()
-      ..set(StreamManagementData(details.excludeFromStreamManagement));
     await _runOutgoingPostStanzaHandlers(
       newStanza,
       initial: StanzaHandlerData(
         false,
         false,
         newStanza,
-        extensions,
+        details.postSendExtensions ?? TypedMap<StanzaHandlerExtension>(),
+        encrypted: data.encrypted,
       ),
     );
     _log.fine('Done');
@@ -652,15 +685,30 @@ class XmppConnection {
   /// call its callback and end the processing if the callback returned true; continue
   /// if it returned false.
   Future<StanzaHandlerData> _runStanzaHandlers(
-    List<StanzaHandler> handlers,
+    List<_StanzaHandlerWrapper> handlers,
     Stanza stanza, {
     StanzaHandlerData? initial,
   }) async {
     var state = initial ?? StanzaHandlerData(false, false, stanza, TypedMap());
-    for (final handler in handlers) {
+    for (final handlerRaw in handlers) {
+      final (handler, managerName) = handlerRaw;
       if (handler.matches(state.stanza)) {
+        _log.finest(
+          'Running handler for ${stanza.tag} (${stanza.attributes["id"]}) of $managerName',
+        );
+        try {
           state = await handler.callback(state.stanza, state);
-        if (state.done || state.cancel) return state;
+        } catch (ex) {
+          _log.severe(
+            'Handler from $managerName for ${stanza.tag} (${stanza.attributes["id"]}) failed with "$ex"',
+          );
+        }
+        if (state.done || state.cancel) {
+          _log.finest(
+            'Processing ended early for ${stanza.tag} (${stanza.attributes["id"]}) by $managerName',
+          );
+          return state;
+        }
       }
     }
 
@@ -736,9 +784,15 @@ class XmppConnection {
         : '';
     _log.finest('<== $prefix${incomingPreHandlers.stanza.toXml()}');
 
+    if (incomingPreHandlers.skip) {
+      _log.fine(
+        'Not processing stanza (${incomingPreHandlers.stanza.tag}, ${incomingPreHandlers.stanza.id}) due to skip=true.',
+      );
+      return;
+    }
+
     final awaited = await _stanzaAwaiter.onData(
       incomingPreHandlers.stanza,
-      connectionSettings.jid.toBare(),
     );
     if (awaited) {
       return;
@@ -753,6 +807,7 @@ class XmppConnection {
         incomingPreHandlers.stanza,
         incomingPreHandlers.extensions,
         encrypted: incomingPreHandlers.encrypted,
+        encryptionError: incomingPreHandlers.encryptionError,
         cancelReason: incomingPreHandlers.cancelReason,
       ),
     );
@@ -796,14 +851,12 @@ class XmppConnection {
         // causing (a) the negotiator to become confused and (b) the stanzas/nonzas to be
         // missed. This causes the data to wait while the negotiator is running and thus
         // prevent this issue.
-        await _negotiationLock.synchronized(() async {
         if (_routingState != RoutingState.negotiating) {
           unawaited(handleXmlStream(event));
           return;
         }
 
         await _negotiationsHandler.negotiate(event);
-        });
         break;
       case RoutingState.handleStanzas:
         await _handleStanza(node);

packages/moxxmpp/lib/src/events.dart

@@ -70,9 +70,9 @@ class MessageEvent extends XmppEvent {
   MessageEvent(
     this.from,
     this.to,
-    this.id,
     this.encrypted,
     this.extensions, {
+    this.id,
     this.type,
     this.error,
     this.encryptionError,
@@ -85,7 +85,7 @@ class MessageEvent extends XmppEvent {
   final JID to;
 
   /// The id attribute of the message.
-  final String id;
+  final String? id;
 
   /// The type attribute of the message.
   final String? type;
@@ -184,16 +184,12 @@ class UserAvatarUpdatedEvent extends XmppEvent {
 class VCardAvatarUpdatedEvent extends XmppEvent {
   VCardAvatarUpdatedEvent(
     this.jid,
-    this.base64,
     this.hash,
   );
 
   /// The JID of the entity that updated their avatar.
   final JID jid;
 
-  /// The base64-encoded avatar data.
-  final String base64;
-
   /// The SHA-1 hash of the avatar.
   final String hash;
 }

packages/moxxmpp/lib/src/jid.dart

@@ -55,8 +55,6 @@ class JID {
 
   /// Converts the JID into a bare JID.
   JID toBare() {
-    if (isBare()) return this;
-
     return JID(local, domain, '');
   }
 

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

@@ -47,7 +47,6 @@ abstract class XmppManagerBase {
 
     final result = await dm!.discoInfoQuery(
       _managerAttributes.getConnectionSettings().jid.toDomain(),
-      shouldEncrypt: false,
     );
     if (result.isType<DiscoError>()) {
       return false;
@@ -81,6 +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() => [];
 

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

@@ -13,12 +13,20 @@ class StanzaHandlerData {
     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;
@@ -33,7 +41,7 @@ class StanzaHandlerData {
   /// absolutely necessary, e.g. with Message Carbons or OMEMO.
   Stanza stanza;
 
-  /// Whether the stanza was received encrypted
+  /// Whether the stanza is already encrypted
   bool encrypted;
 
   // If true, forces the encryption manager to encrypt to the JID, even if it
@@ -42,6 +50,10 @@ class StanzaHandlerData {
   // to the JID anyway.
   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/handlers.dart

@@ -1,4 +1,4 @@
-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';
@@ -100,10 +100,10 @@ class StanzaHandler extends Handler {
         matches &= firstTag?.xmlns == tagXmlns;
       }
     } else if (tagXmlns != null) {
-      matches &= listContains(
+      matches &= node.children.firstWhereOrNull(
-        node.children,
             (XMLNode node_) => node_.attributes['xmlns'] == tagXmlns,
-      );
+          ) !=
+          null;
     }
 
     return matches;

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

@@ -32,3 +32,5 @@ 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/message.dart

@@ -66,23 +66,30 @@ class MessageManager extends XmppManagerBase {
           stanzaTag: 'message',
           callback: _onMessage,
           priority: messageHandlerPriority,
-        )
+        ),
       ];
 
   @override
   Future<bool> isSupported() async => true;
 
   Future<StanzaHandlerData> _onMessage(
-    Stanza _,
+    Stanza stanza,
     StanzaHandlerData state,
   ) async {
+    final body = stanza.firstTag('body');
+    if (body != null) {
+      state.extensions.set(
+        MessageBodyData(body.innerText()),
+      );
+    }
+
     getAttributes().sendEvent(
       MessageEvent(
         JID.fromString(state.stanza.attributes['from']! as String),
         JID.fromString(state.stanza.attributes['to']! as String),
-        state.stanza.attributes['id']! 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,
@@ -96,19 +103,21 @@ class MessageManager extends XmppManagerBase {
   /// data for building the message.
   Future<void> sendMessage(
     JID to,
-    TypedMap<StanzaHandlerExtension> extensions,
+    TypedMap<StanzaHandlerExtension> extensions, {
-  ) async {
+    String type = 'chat',
+  }) async {
     await getAttributes().sendStanza(
       StanzaDetails(
         Stanza.message(
           to: to.toString(),
           id: extensions.get<MessageIdData>()?.id,
-          type: 'chat',
+          type: type,
           children: _messageSendingCallbacks
               .map((c) => c(extensions))
               .flattened
               .toList(),
         ),
+        extensions: extensions,
         awaitable: false,
       ),
     );

packages/moxxmpp/lib/src/namespaces.dart

@@ -13,6 +13,7 @@ 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';
@@ -21,6 +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';
@@ -66,6 +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';
 
@@ -123,6 +132,9 @@ 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';
 
@@ -154,7 +166,6 @@ 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';

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

@@ -1,3 +1,4 @@
+import 'package:collection/collection.dart';
 import 'package:meta/meta.dart';
 import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/connection.dart';
@@ -8,7 +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 {
@@ -117,8 +117,7 @@ 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(
+    return features.firstWhereOrNull(
-          features,
           (XMLNode feature) => feature.attributes['xmlns'] == negotiatingXmlns,
         ) !=
         null;

packages/moxxmpp/lib/src/parser.dart

@@ -57,9 +57,10 @@ class _ChunkedConversionBuffer<S, T> {
 }
 
 /// A buffer to put between a socket's input and a full XML stream.
-class XMPPStreamParser extends StreamTransformerBase<String, XMPPStreamObject> {
+class XMPPStreamParser
-  final StreamController<XMPPStreamObject> _streamController =
+    extends StreamTransformerBase<String, List<XMPPStreamObject>> {
-      StreamController<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 =
@@ -117,13 +118,14 @@ class XMPPStreamParser extends StreamTransformerBase<String, XMPPStreamObject> {
   }
 
   @override
-  Stream<XMPPStreamObject> bind(Stream<String> stream) {
+  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) {
@@ -135,7 +137,7 @@ class XMPPStreamParser extends StreamTransformerBase<String, XMPPStreamObject> {
           continue;
         }
 
-        _streamController.add(
+        objects.add(
           XMPPStreamHeader(
             Map<String, String>.fromEntries(
               event.attributes.map((attr) {
@@ -151,13 +153,15 @@ class XMPPStreamParser extends StreamTransformerBase<String, XMPPStreamObject> {
       final children = _childBuffer.convert(childEvents);
       for (final node in children) {
         if (node.nodeType == XmlNodeType.ELEMENT) {
-          _streamController.add(
+          objects.add(
             XMPPStreamElement(
               XMLNode.fromXmlElement(node as XmlElement),
             ),
           );
         }
       }
+
+      _streamController.add(objects);
     });
 
     return _streamController.stream;

packages/moxxmpp/lib/src/presence.dart

@@ -1,4 +1,5 @@
 import 'dart:async';
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/base.dart';
@@ -10,7 +11,8 @@ import 'package:moxxmpp/src/negotiators/namespaces.dart';
 import 'package:moxxmpp/src/negotiators/negotiator.dart';
 import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
+import 'package:moxxmpp/src/util/typed_map.dart';
+import 'package:moxxmpp/src/xeps/xep_0198/types.dart';
 
 /// A function that will be called when presence, outside of subscription request
 /// management, will be sent. Useful for managers that want to add [XMLNode]s to said
@@ -64,7 +66,7 @@ class PresenceManager extends XmppManagerBase {
           stanzaTag: 'presence',
           callback: _onPresence,
           priority: presenceHandlerPriority,
-        )
+        ),
       ];
 
   @override
@@ -156,7 +158,9 @@ class PresenceManager extends XmppManagerBase {
         ),
         awaitable: false,
         bypassQueue: true,
-        excludeFromStreamManagement: true,
+        postSendExtensions: TypedMap<StanzaHandlerExtension>.fromList([
+          const StreamManagementData(true, null),
+        ]),
       ),
     );
   }

packages/moxxmpp/lib/src/rfcs/rfc_6120/resource_binding.dart

@@ -1,10 +1,10 @@
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/namespaces.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/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 import 'package:moxxmpp/src/xeps/xep_0198/xep_0198.dart';
 import 'package:uuid/uuid.dart';
 

packages/moxxmpp/lib/src/rfcs/rfc_6120/sasl/negotiator.dart

@@ -1,4 +1,4 @@
-import 'package:moxlib/moxlib.dart';
+import 'package:collection/collection.dart';
 import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/negotiators/negotiator.dart';
 import 'package:moxxmpp/src/stringxml.dart';
@@ -13,15 +13,13 @@ abstract class SaslNegotiator extends XmppFeatureNegotiatorBase {
   @override
   bool matchesFeature(List<XMLNode> features) {
     // Is SASL advertised?
-    final mechanisms = firstWhereOrNull(
+    final mechanisms = features.firstWhereOrNull(
-      features,
       (XMLNode feature) => feature.attributes['xmlns'] == saslXmlns,
     );
     if (mechanisms == null) return false;
 
     // Is SASL PLAIN advertised?
-    return firstWhereOrNull(
+    return mechanisms.children.firstWhereOrNull(
-          mechanisms.children,
           (XMLNode mechanism) => mechanism.text == mechanismName,
         ) !=
         null;

packages/moxxmpp/lib/src/rfcs/rfc_6120/sasl/plain.dart

@@ -1,12 +1,12 @@
 import 'dart:convert';
 import 'package:logging/logging.dart';
+import 'package:moxlib/moxlib.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/rfcs/rfc_6120/sasl/errors.dart';
 import 'package:moxxmpp/src/rfcs/rfc_6120/sasl/nonza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/negotiators.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/xep_0388.dart';
 import 'package:saslprep/saslprep.dart';
@@ -96,7 +96,9 @@ class SaslPlainNegotiator extends Sasl2AuthenticationNegotiator {
 
   @override
   Future<Result<bool, NegotiatorError>> onSasl2Success(XMLNode response) async {
+    if (pickedForSasl2) {
       state = NegotiatorState.done;
+    }
     return const Result(true);
   }
 

packages/moxxmpp/lib/src/rfcs/rfc_6120/sasl/scram.dart

@@ -2,6 +2,7 @@ import 'dart:convert';
 import 'dart:math' show Random;
 import 'package:cryptography/cryptography.dart';
 import 'package:logging/logging.dart';
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/negotiators/namespaces.dart';
@@ -10,7 +11,6 @@ import 'package:moxxmpp/src/rfcs/rfc_6120/sasl/errors.dart';
 import 'package:moxxmpp/src/rfcs/rfc_6120/sasl/kv.dart';
 import 'package:moxxmpp/src/rfcs/rfc_6120/sasl/nonza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/negotiators.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/xep_0388.dart';
 import 'package:random_string/random_string.dart';
@@ -246,6 +246,9 @@ class SaslScramNegotiator extends Sasl2AuthenticationNegotiator {
   bool _checkSignature(String base64Signature) {
     final signature =
         parseKeyValue(utf8.decode(base64.decode(base64Signature)));
+    _log.finest(
+      'Expecting signature: "$_serverSignature", got: "${signature["v"]}"',
+    );
     return signature['v']! == _serverSignature;
   }
 
@@ -360,6 +363,11 @@ class SaslScramNegotiator extends Sasl2AuthenticationNegotiator {
 
   @override
   Future<Result<bool, NegotiatorError>> onSasl2Success(XMLNode response) async {
+    // Don't do anything if we have not been picked for SASL2.
+    if (!pickedForSasl2) {
+      return const Result(true);
+    }
+
     // When we're done with SASL2, check the additional data to verify the server
     // signature.
     state = NegotiatorState.done;

packages/moxxmpp/lib/src/rfcs/rfc_6120/starttls.dart

@@ -1,9 +1,9 @@
 import 'package:logging/logging.dart';
+import 'package:moxlib/moxlib.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/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 
 enum _StartTlsState { ready, requested }
 

packages/moxxmpp/lib/src/roster/roster.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 import 'package:collection/collection.dart';
 import 'package:meta/meta.dart';
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/attributes.dart';
 import 'package:moxxmpp/src/managers/base.dart';
@@ -14,7 +15,6 @@ import 'package:moxxmpp/src/roster/errors.dart';
 import 'package:moxxmpp/src/roster/state.dart';
 import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 
 @immutable
 class XmppRosterItem {
@@ -122,7 +122,7 @@ class RosterManager extends XmppManagerBase {
           tagName: 'query',
           tagXmlns: rosterXmlns,
           callback: _onRosterPush,
-        )
+        ),
       ];
 
   @override
@@ -182,8 +182,18 @@ class RosterManager extends XmppManagerBase {
 
   /// Shared code between requesting rosters without and with roster versioning, if
   /// the server deems a regular roster response more efficient than n roster pushes.
+  ///
+  /// [query] is the <query /> child of the iq, if available.
+  ///
+  /// If roster versioning was used, then [requestedRosterVersion] is the version
+  /// we requested the roster with.
+  ///
+  /// Note that if roster versioning is used and the server returns us an empty iq,
+  /// it means that the roster did not change since the last version. In that case,
+  /// we do nothing and just return. The roster state manager will not be notified.
   Future<Result<RosterRequestResult, RosterError>> _handleRosterResponse(
     XMLNode? query,
+    String? requestedRosterVersion,
   ) async {
     final List<XmppRosterItem> items;
     String? rosterVersion;
@@ -204,6 +214,14 @@ class RosterManager extends XmppManagerBase {
           .toList();
 
       rosterVersion = query.attributes['ver'] as String?;
+    } else if (requestedRosterVersion != null) {
+      // Skip the handleRosterFetch call since nothing changed.
+      return Result(
+        RosterRequestResult(
+          [],
+          requestedRosterVersion,
+        ),
+      );
     } else {
       logger.warning(
         'Server response to roster request without roster versioning does not contain a <query /> element, while the type is not error. This violates RFC6121',
@@ -258,7 +276,7 @@ class RosterManager extends XmppManagerBase {
     }
 
     final responseQuery = response.firstTag('query', xmlns: rosterXmlns);
-    return _handleRosterResponse(responseQuery);
+    return _handleRosterResponse(responseQuery, rosterVersion);
   }
 
   /// Requests a series of roster pushes according to RFC6121. Requires that the server
@@ -266,6 +284,7 @@ class RosterManager extends XmppManagerBase {
   Future<Result<RosterRequestResult?, RosterError>>
       requestRosterPushes() async {
     final attrs = getAttributes();
+    final rosterVersion = await _stateManager.getRosterVersion();
     final result = (await attrs.sendStanza(
       StanzaDetails(
         Stanza.iq(
@@ -275,9 +294,9 @@ class RosterManager extends XmppManagerBase {
               tag: 'query',
               xmlns: rosterXmlns,
               attributes: {
-                'ver': await _stateManager.getRosterVersion() ?? '',
+                'ver': rosterVersion ?? '',
               },
-            )
+            ),
           ],
         ),
       ),
@@ -289,7 +308,7 @@ class RosterManager extends XmppManagerBase {
     }
 
     final query = result.firstTag('query', xmlns: rosterXmlns);
-    return _handleRosterResponse(query);
+    return _handleRosterResponse(query, rosterVersion);
   }
 
   bool rosterVersioningAvailable() {
@@ -319,14 +338,12 @@ class RosterManager extends XmppManagerBase {
                   tag: 'item',
                   attributes: <String, String>{
                     'jid': jid,
-                    ...title == jid.split('@')[0]
+                    if (title == jid.split('@')[0]) 'name': title,
-                        ? <String, String>{}
-                        : <String, String>{'name': title}
                   },
                   children: (groups ?? [])
                       .map((group) => XMLNode(tag: 'group', text: group))
                       .toList(),
-                )
+                ),
               ],
             ),
           ],
@@ -357,13 +374,13 @@ class RosterManager extends XmppManagerBase {
               children: [
                 XMLNode(
                   tag: 'item',
-                  attributes: <String, String>{
+                  attributes: {
                     'jid': jid,
-                    'subscription': 'remove'
+                    'subscription': 'remove',
                   },
-                )
+                ),
               ],
-            )
+            ),
           ],
         ),
       ),

packages/moxxmpp/lib/src/stanza.dart

@@ -1,30 +1,44 @@
+import 'package:moxxmpp/src/managers/data.dart';
 import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/stringxml.dart';
+import 'package:moxxmpp/src/util/typed_map.dart';
 
 /// A description of a stanza to send.
 class StanzaDetails {
   const StanzaDetails(
     this.stanza, {
+    this.extensions,
     this.addId = true,
     this.awaitable = true,
+    this.shouldEncrypt = true,
     this.encrypted = false,
     this.forceEncryption = false,
     this.bypassQueue = false,
-    this.excludeFromStreamManagement = false,
+    this.postSendExtensions,
   });
 
   /// The stanza to send.
   final Stanza stanza;
 
+  /// The extension data used for constructing the stanza.
+  final TypedMap<StanzaHandlerExtension>? extensions;
+
   /// Flag indicating whether a stanza id should be added before sending.
   final bool addId;
 
   /// Track the stanza to allow awaiting its response.
   final bool awaitable;
 
+  final bool forceEncryption;
+
+  /// Flag indicating whether the stanza that is sent is already encrypted (true)
+  /// or not (false). This is only useful for E2EE implementations that have to
+  /// send heartbeats that must bypass themselves.
   final bool encrypted;
 
-  final bool forceEncryption;
+  /// Tells an E2EE implementation, if available, to encrypt the stanza (true) or
+  /// ignore the stanza (false).
+  final bool shouldEncrypt;
 
   /// Bypasses being put into the queue. Useful for sending stanzas that must go out
   /// now, where it's okay if it does not get sent.
@@ -34,31 +48,62 @@ class StanzaDetails {
   /// This makes the Stream Management implementation, when available, ignore the stanza,
   /// meaning that it gets counted but excluded from resending.
   /// This should never have to be set to true.
-  final bool excludeFromStreamManagement;
+  final TypedMap<StanzaHandlerExtension>? postSendExtensions;
 }
 
-/// A simple description of the <error /> element that may be inside a stanza
+/// A general error type for errors.
-class StanzaError {
+abstract class StanzaError {
-  StanzaError(this.type, this.error);
+  static StanzaError? fromXMLNode(XMLNode node) {
-  String type;
+    final error = node.firstTag('error');
-  String error;
+    if (error == null) {
+      return null;
+    }
+
+    final specificError = error.firstTagByXmlns(fullStanzaXmlns);
+    if (specificError == null) {
+      return UnknownStanzaError();
+    }
+
+    switch (specificError.tag) {
+      case RemoteServerNotFoundError.tag:
+        return RemoteServerNotFoundError();
+      case RemoteServerTimeoutError.tag:
+        return RemoteServerTimeoutError();
+      case ServiceUnavailableError.tag:
+        return ServiceUnavailableError();
+    }
+
+    return UnknownStanzaError();
+  }
 
-  /// Returns a StanzaError if [stanza] contains a <error /> element. If not, returns
-  /// null.
   static StanzaError? fromStanza(Stanza stanza) {
-    final error = stanza.firstTag('error');
+    return fromXMLNode(stanza);
-    if (error == null) return null;
-
-    final stanzaError = error.firstTagByXmlns(fullStanzaXmlns);
-    if (stanzaError == null) return null;
-
-    return StanzaError(
-      error.attributes['type']! as String,
-      stanzaError.tag,
-    );
   }
 }
 
+/// Recipient does not provide a given service.
+/// https://xmpp.org/rfcs/rfc6120.html#stanzas-error-conditions-service-unavailable
+class ServiceUnavailableError extends StanzaError {
+  static const tag = 'service-unavailable';
+}
+
+/// Could not connect to the remote server.
+/// https://xmpp.org/rfcs/rfc6120.html#stanzas-error-conditions-remote-server-not-found
+class RemoteServerNotFoundError extends StanzaError {
+  static const tag = 'remote-server-not-found';
+}
+
+/// The connection to the remote server timed out.
+/// https://xmpp.org/rfcs/rfc6120.html#stanzas-error-conditions-remote-server-timeout
+class RemoteServerTimeoutError extends StanzaError {
+  static const tag = 'remote-server-timeout';
+}
+
+/// An unknown error.
+class UnknownStanzaError extends StanzaError {}
+
+const _stanzaNotDefined = Object();
+
 class Stanza extends XMLNode {
   // ignore: use_super_parameters
   Stanza({
@@ -173,7 +218,7 @@ class Stanza extends XMLNode {
 
   Stanza copyWith({
     String? id,
-    String? from,
+    Object? from = _stanzaNotDefined,
     String? to,
     String? type,
     List<XMLNode>? children,
@@ -182,7 +227,7 @@ class Stanza extends XMLNode {
     return Stanza(
       tag: tag,
       to: to ?? this.to,
-      from: from ?? this.from,
+      from: from != _stanzaNotDefined ? from as String? : this.from,
       id: id ?? this.id,
       type: type ?? this.type,
       children: children ?? this.children,
@@ -205,15 +250,14 @@ XMLNode buildErrorElement(String type, String condition, {String? text}) {
       XMLNode.xmlns(
         tag: condition,
         xmlns: fullStanzaXmlns,
-        children: text != null
+        children: [
-            ? [
+          if (text != null)
             XMLNode.xmlns(
               tag: 'text',
               xmlns: fullStanzaXmlns,
               text: text,
-                )
+            ),
-              ]
+        ],
-            : [],
       ),
     ],
   );

packages/moxxmpp/lib/src/types/result.dart

@@ -1,16 +0,0 @@
-class Result<T, V> {
-  const Result(this._data)
-      : assert(
-          _data is T || _data is V,
-          'Invalid data type: Must be either $T or $V',
-        );
-  final dynamic _data;
-
-  bool isType<S>() => _data is S;
-
-  S get<S>() {
-    assert(_data is S, 'Data is not $S');
-
-    return _data as S;
-  }
-}

packages/moxxmpp/lib/src/util/incoming_queue.dart

@@ -0,0 +1,97 @@
+import 'dart:async';
+import 'dart:collection';
+import 'package:logging/logging.dart';
+import 'package:moxxmpp/src/awaiter.dart';
+import 'package:moxxmpp/src/parser.dart';
+import 'package:synchronized/synchronized.dart';
+
+/// A queue for incoming [XMPPStreamObject]s to ensure "in order"
+/// processing (except for stanzas that are awaited).
+class IncomingStanzaQueue {
+  IncomingStanzaQueue(this._callback, this._stanzaAwaiter);
+
+  /// The queue for storing the completer of each
+  /// incoming stanza (or stream object to be precise).
+  /// Only access while holding the lock [_lock].
+  final Queue<Completer<void>> _queue = Queue();
+
+  /// Flag indicating whether a callback is already running (true)
+  /// or not. "a callback" and not "the callback" because awaited stanzas
+  /// are allowed to bypass the queue.
+  /// Only access while holding the lock [_lock].
+  bool _isRunning = false;
+
+  /// The function to call to process an incoming stream object.
+  final Future<void> Function(XMPPStreamObject) _callback;
+
+  /// Lock guarding both [_queue] and [_isRunning].
+  final Lock _lock = Lock();
+
+  /// Logger.
+  final Logger _log = Logger('IncomingStanzaQueue');
+
+  final StanzaAwaiter _stanzaAwaiter;
+
+  Future<void> _processStreamObject(
+    Future<void>? future,
+    XMPPStreamObject object,
+  ) async {
+    if (future == null) {
+      if (object is XMPPStreamElement) {
+        _log.finest(
+          'Bypassing queue for ${object.node.tag} (${object.node.attributes["id"]})',
+        );
+      }
+      return _callback(object);
+    }
+
+    // Wait for our turn.
+    await future;
+
+    // Run the callback.
+    await _callback(object);
+
+    // Run the next entry.
+    await _lock.synchronized(() {
+      if (_queue.isNotEmpty) {
+        _queue.removeFirst().complete();
+      } else {
+        _isRunning = false;
+      }
+    });
+  }
+
+  Future<void> addStanza(List<XMPPStreamObject> objects) async {
+    await _lock.synchronized(() async {
+      for (final object in objects) {
+        if (await canBypassQueue(object)) {
+          unawaited(
+            _processStreamObject(null, object),
+          );
+          continue;
+        }
+
+        final completer = Completer<void>();
+        if (_isRunning) {
+          _queue.add(completer);
+        } else {
+          _isRunning = true;
+          completer.complete();
+        }
+
+        unawaited(
+          _processStreamObject(completer.future, object),
+        );
+      }
+    });
+  }
+
+  Future<bool> canBypassQueue(XMPPStreamObject object) async {
+    if (object is XMPPStreamHeader) {
+      return false;
+    }
+
+    object as XMPPStreamElement;
+    return _stanzaAwaiter.isAwaited(object.node);
+  }
+}

packages/moxxmpp/lib/src/util/queue.dart

@@ -33,7 +33,7 @@ class AsyncStanzaQueue {
     this._canSendCallback,
   );
 
-  /// The lock for accessing [AsyncStanzaQueue._lock] and [AsyncStanzaQueue._running].
+  /// The lock for accessing [AsyncStanzaQueue._queue].
   final Lock _lock = Lock();
 
   /// The actual job queue.
@@ -44,22 +44,15 @@ class AsyncStanzaQueue {
 
   final CanSendCallback _canSendCallback;
 
-  /// Indicates whether we are currently executing a job.
-  bool _running = false;
-
   @visibleForTesting
   Queue<StanzaQueueEntry> get queue => _queue;
 
-  @visibleForTesting
-  bool get isRunning => _running;
-
   /// Adds a job [entry] to the queue.
   Future<void> enqueueStanza(StanzaQueueEntry entry) async {
     await _lock.synchronized(() async {
       _queue.add(entry);
 
-      if (!_running && _queue.isNotEmpty && await _canSendCallback()) {
+      if (_queue.isNotEmpty && await _canSendCallback()) {
-        _running = true;
         unawaited(
           _runJob(_queue.removeFirst()),
         );
@@ -79,8 +72,6 @@ class AsyncStanzaQueue {
         unawaited(
           _runJob(_queue.removeFirst()),
         );
-      } else {
-        _running = false;
       }
     });
   }
@@ -90,7 +81,6 @@ class AsyncStanzaQueue {
 
     await _lock.synchronized(() {
       if (_queue.isNotEmpty) {
-        _running = true;
         unawaited(
           _runJob(_queue.removeFirst()),
         );

packages/moxxmpp/lib/src/util/typed_map.dart

@@ -20,4 +20,6 @@ class TypedMap<B> {
 
   /// Return the object of type [T] from the map, if it has been stored.
   T? get<T>() => _data[T] as T?;
+
+  Iterable<Object> get keys => _data.keys;
 }

packages/moxxmpp/lib/src/xeps/staging/extensible_file_thumbnails.dart

@@ -1,57 +0,0 @@
-import 'package:moxxmpp/src/stringxml.dart';
-
-/// NOTE: Specified by https://codeberg.org/moxxy/custom-xeps/src/branch/master/xep-xxxx-extensible-file-thumbnails.md
-
-const fileThumbnailsXmlns = 'proto:urn:xmpp:eft:0';
-const blurhashThumbnailType = '$fileThumbnailsXmlns:blurhash';
-
-abstract class Thumbnail {}
-
-class BlurhashThumbnail extends Thumbnail {
-  BlurhashThumbnail(this.hash);
-  final String hash;
-}
-
-Thumbnail? parseFileThumbnailElement(XMLNode node) {
-  assert(
-    node.attributes['xmlns'] == fileThumbnailsXmlns,
-    'Invalid element xmlns',
-  );
-  assert(node.tag == 'file-thumbnail', 'Invalid element name');
-
-  switch (node.attributes['type']!) {
-    case blurhashThumbnailType:
-      {
-        final hash = node.firstTag('blurhash')!.innerText();
-        return BlurhashThumbnail(hash);
-      }
-  }
-
-  return null;
-}
-
-XMLNode? _fromThumbnail(Thumbnail thumbnail) {
-  if (thumbnail is BlurhashThumbnail) {
-    return XMLNode(
-      tag: 'blurhash',
-      text: thumbnail.hash,
-    );
-  }
-
-  return null;
-}
-
-XMLNode constructFileThumbnailElement(Thumbnail thumbnail) {
-  final node = _fromThumbnail(thumbnail)!;
-  var type = '';
-  if (thumbnail is BlurhashThumbnail) {
-    type = blurhashThumbnailType;
-  }
-
-  return XMLNode.xmlns(
-    tag: 'file-thumbnail',
-    xmlns: fileThumbnailsXmlns,
-    attributes: {'type': type},
-    children: [node],
-  );
-}

packages/moxxmpp/lib/src/xeps/xep_0004.dart

@@ -1,4 +1,4 @@
-import 'package:moxlib/moxlib.dart';
+import 'package:collection/collection.dart';
 import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/stringxml.dart';
 
@@ -10,14 +10,14 @@ class DataFormOption {
   XMLNode toXml() {
     return XMLNode(
       tag: 'option',
-      attributes: label != null
+      attributes: {
-          ? <String, dynamic>{'label': label}
+        if (label != null) 'label': label,
-          : <String, dynamic>{},
+      },
       children: [
         XMLNode(
           tag: 'value',
           text: value,
-        )
+        ),
       ],
     );
   }
@@ -45,19 +45,22 @@ class DataFormField {
     return XMLNode(
       tag: 'field',
       attributes: <String, dynamic>{
-        ...varAttr != null
+        if (varAttr != null) 'var': varAttr,
-            ? <String, dynamic>{'var': varAttr}
+        if (type != null) 'type': type,
-            : <String, dynamic>{},
+        if (label != null) 'label': label,
-        ...type != null ? <String, dynamic>{'type': type} : <String, dynamic>{},
-        ...label != null
-            ? <String, dynamic>{'label': label}
-            : <String, dynamic>{}
       },
       children: [
-        ...description != null ? [XMLNode(tag: 'desc', text: description)] : [],
+        if (description != null)
-        ...isRequired ? [XMLNode(tag: 'required')] : [],
+          XMLNode(
+            tag: 'desc',
+            text: description,
+          ),
+        if (isRequired)
+          XMLNode(
+            tag: 'required',
+          ),
         ...values.map((value) => XMLNode(tag: 'value', text: value)),
-        ...options.map((option) => option.toXml())
+        ...options.map((option) => option.toXml()),
       ],
     );
   }
@@ -80,7 +83,7 @@ class DataForm {
   final List<List<DataFormField>> items;
 
   DataFormField? getFieldByVar(String varAttr) {
-    return firstWhereOrNull(fields, (field) => field.varAttr == varAttr);
+    return fields.firstWhereOrNull((field) => field.varAttr == varAttr);
   }
 
   XMLNode toXml() {

packages/moxxmpp/lib/src/xeps/xep_0030/errors.dart

@@ -1,7 +1,10 @@
-abstract class DiscoError {}
+import 'package:moxxmpp/src/stanza.dart';
 
+/// Base type for disco-related errors.
+abstract class DiscoError extends StanzaError {}
+
+/// An unspecified error that is not covered by another [DiscoError].
 class UnknownDiscoError extends DiscoError {}
 
+/// The received disco response is invalid in some shape or form.
 class InvalidResponseDiscoError extends DiscoError {}
-
-class ErrorResponseDiscoError extends DiscoError {}

packages/moxxmpp/lib/src/xeps/xep_0030/helpers.dart

@@ -13,8 +13,10 @@ Stanza buildDiscoInfoQueryStanza(JID entity, String? node) {
       XMLNode.xmlns(
         tag: 'query',
         xmlns: discoInfoXmlns,
-        attributes: node != null ? {'node': node} : {},
+        attributes: {
-      )
+          if (node != null) 'node': node,
+        },
+      ),
     ],
   );
 }
@@ -27,8 +29,10 @@ Stanza buildDiscoItemsQueryStanza(JID entity, {String? node}) {
       XMLNode.xmlns(
         tag: 'query',
         xmlns: discoItemsXmlns,
-        attributes: node != null ? {'node': node} : {},
+        attributes: {
-      )
+          if (node != null) 'node': node,
+        },
+      ),
     ],
   );
 }

packages/moxxmpp/lib/src/xeps/xep_0030/types.dart

@@ -19,13 +19,11 @@ class Identity {
   XMLNode toXMLNode() {
     return XMLNode(
       tag: 'identity',
-      attributes: <String, dynamic>{
+      attributes: {
         'category': category,
         'type': type,
         'name': name,
-        ...lang == null
+        if (lang != null) 'xml:lang': lang,
-            ? <String, dynamic>{}
-            : <String, dynamic>{'xml:lang': lang}
       },
     );
   }

packages/moxxmpp/lib/src/xeps/xep_0030/xep_0030.dart

@@ -1,5 +1,6 @@
 import 'dart:async';
 import 'package:meta/meta.dart';
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/base.dart';
@@ -9,7 +10,6 @@ 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/types/result.dart';
 import 'package:moxxmpp/src/util/wait.dart';
 import 'package:moxxmpp/src/xeps/xep_0030/cache.dart';
 import 'package:moxxmpp/src/xeps/xep_0030/errors.dart';
@@ -44,11 +44,11 @@ class DiscoManager extends XmppManagerBase {
   final Map<DiscoCacheKey, DiscoInfo> _discoInfoCache = {};
 
   /// The tracker for tracking disco#info queries that are in flight.
-  final WaitForTracker<DiscoCacheKey, Result<DiscoError, DiscoInfo>>
+  final WaitForTracker<DiscoCacheKey, Result<StanzaError, DiscoInfo>>
       _discoInfoTracker = WaitForTracker();
 
   /// The tracker for tracking disco#info queries that are in flight.
-  final WaitForTracker<DiscoCacheKey, Result<DiscoError, List<DiscoItem>>>
+  final WaitForTracker<DiscoCacheKey, Result<StanzaError, List<DiscoItem>>>
       _discoItemsTracker = WaitForTracker();
 
   /// Cache lock
@@ -67,7 +67,7 @@ class DiscoManager extends XmppManagerBase {
   List<String> get features => _features;
 
   @visibleForTesting
-  WaitForTracker<DiscoCacheKey, Result<DiscoError, DiscoInfo>>
+  WaitForTracker<DiscoCacheKey, Result<StanzaError, DiscoInfo>>
       get infoTracker => _discoInfoTracker;
 
   @override
@@ -231,7 +231,7 @@ class DiscoManager extends XmppManagerBase {
 
   Future<void> _exitDiscoInfoCriticalSection(
     DiscoCacheKey key,
-    Result<DiscoError, DiscoInfo> result,
+    Result<StanzaError, DiscoInfo> result,
     bool shouldCache,
   ) async {
     await _cacheLock.synchronized(() async {
@@ -252,10 +252,10 @@ class DiscoManager extends XmppManagerBase {
   ///
   /// [shouldCache] indicates whether the successful result of the disco#info query
   /// should be cached (true) or not(false).
-  Future<Result<DiscoError, DiscoInfo>> discoInfoQuery(
+  Future<Result<StanzaError, DiscoInfo>> discoInfoQuery(
     JID entity, {
     String? node,
-    bool shouldEncrypt = true,
+    bool shouldEncrypt = false,
     bool shouldCache = true,
   }) async {
     DiscoInfo? info;
@@ -263,7 +263,7 @@ class DiscoManager extends XmppManagerBase {
     final ecm = getAttributes()
         .getManagerById<EntityCapabilitiesManager>(entityCapabilitiesManager);
     final ffuture = await _cacheLock
-        .synchronized<Future<Future<Result<DiscoError, DiscoInfo>>?>?>(
+        .synchronized<Future<Future<Result<StanzaError, DiscoInfo>>?>?>(
             () async {
       // Check if we already know what the JID supports
       if (_discoInfoCache.containsKey(cacheKey)) {
@@ -294,19 +294,21 @@ class DiscoManager extends XmppManagerBase {
     final stanza = (await getAttributes().sendStanza(
       StanzaDetails(
         buildDiscoInfoQueryStanza(entity, node),
-        encrypted: !shouldEncrypt,
+        shouldEncrypt: shouldEncrypt,
       ),
     ))!;
-    final query = stanza.firstTag('query');
+
-    if (query == null) {
+    // Error handling
-      final result = Result<DiscoError, DiscoInfo>(InvalidResponseDiscoError());
+    if (stanza.attributes['type'] == 'error') {
+      final result =
+          Result<StanzaError, DiscoInfo>(StanzaError.fromXMLNode(stanza));
       await _exitDiscoInfoCriticalSection(cacheKey, result, shouldCache);
       return result;
     }
 
-    if (stanza.attributes['type'] == 'error') {
+    final query = stanza.firstTag('query');
-      //final error = stanza.firstTag('error');
+    if (query == null) {
-      final result = Result<DiscoError, DiscoInfo>(ErrorResponseDiscoError());
+      final result = Result<DiscoError, DiscoInfo>(InvalidResponseDiscoError());
       await _exitDiscoInfoCriticalSection(cacheKey, result, shouldCache);
       return result;
     }
@@ -322,10 +324,10 @@ class DiscoManager extends XmppManagerBase {
   }
 
   /// Sends a disco items query to the (full) jid [entity], optionally with node=[node].
-  Future<Result<DiscoError, List<DiscoItem>>> discoItemsQuery(
+  Future<Result<StanzaError, List<DiscoItem>>> discoItemsQuery(
     JID entity, {
     String? node,
-    bool shouldEncrypt = true,
+    bool shouldEncrypt = false,
   }) async {
     final key = DiscoCacheKey(entity, node);
     final future = await _discoItemsTracker.waitFor(key);
@@ -340,19 +342,18 @@ class DiscoManager extends XmppManagerBase {
       ),
     ))!;
 
-    final query = stanza.firstTag('query');
+    // Error handling
-    if (query == null) {
+    if (stanza.attributes['type'] == 'error') {
       final result =
-          Result<DiscoError, List<DiscoItem>>(InvalidResponseDiscoError());
+          Result<StanzaError, List<DiscoItem>>(StanzaError.fromXMLNode(stanza));
       await _discoItemsTracker.resolve(key, result);
       return result;
     }
 
-    if (stanza.attributes['type'] == 'error') {
+    final query = stanza.firstTag('query');
-      //final error = stanza.firstTag('error');
+    if (query == null) {
-      //print("Disco Items error: " + error.toXml());
       final result =
-          Result<DiscoError, List<DiscoItem>>(ErrorResponseDiscoError());
+          Result<DiscoError, List<DiscoItem>>(InvalidResponseDiscoError());
       await _discoItemsTracker.resolve(key, result);
       return result;
     }
@@ -419,7 +420,7 @@ class DiscoManager extends XmppManagerBase {
   /// [entity] supports the disco feature [feature]. If not, returns false.
   Future<bool> supportsFeature(JID entity, String feature) async {
     final info = await discoInfoQuery(entity);
-    if (info.isType<DiscoError>()) return false;
+    if (info.isType<StanzaError>()) return false;
 
     return info.get<DiscoInfo>().features.contains(feature);
   }

packages/moxxmpp/lib/src/xeps/xep_0045/errors.dart

@@ -0,0 +1,25 @@
+/// Represents an error related to Multi-User Chat (MUC).
+abstract class MUCError {}
+
+/// Error indicating an invalid (non-supported) stanza received while going
+/// through normal operation/flow of an MUC.
+class InvalidStanzaFormat extends MUCError {}
+
+/// Represents an error indicating an abnormal condition while parsing
+/// the DiscoInfo response stanza in Multi-User Chat (MUC).
+class InvalidDiscoInfoResponse extends MUCError {}
+
+/// Returned when no nickname was specified from the client side while trying to
+/// perform some actions on the MUC, such as joining the room.
+class NoNicknameSpecified extends MUCError {}
+
+/// This error occurs when a user attempts to perform an action that requires
+/// them to be a member of a room, but they are not currently joined to
+/// that room.
+class RoomNotJoinedError extends MUCError {}
+
+/// Indicates that the MUC forbids us from joining, i.e. when we're banned.
+class JoinForbiddenError extends MUCError {}
+
+/// Indicates that an unspecific error occurred while joining.
+class MUCUnspecificError extends MUCError {}

packages/moxxmpp/lib/src/xeps/xep_0045/events.dart

@@ -0,0 +1,72 @@
+import 'package:moxxmpp/src/events.dart';
+import 'package:moxxmpp/src/jid.dart';
+import 'package:moxxmpp/src/xeps/xep_0045/types.dart';
+
+/// Triggered when the MUC changes our nickname.
+class OwnDataChangedEvent extends XmppEvent {
+  OwnDataChangedEvent(
+    this.roomJid,
+    this.nick,
+    this.affiliation,
+    this.role,
+  );
+
+  /// The JID of the room.
+  final JID roomJid;
+
+  /// Our nickname.
+  final String nick;
+
+  /// Our affiliation.
+  final Affiliation affiliation;
+
+  /// Our role.
+  final Role role;
+}
+
+/// Triggered when an entity joins the MUC.
+class MemberJoinedEvent extends XmppEvent {
+  MemberJoinedEvent(this.roomJid, this.member);
+
+  /// The JID of the room.
+  final JID roomJid;
+
+  /// The new member.
+  final RoomMember member;
+}
+
+/// Triggered when an entity changes their presence in the MUC.
+class MemberChangedEvent extends XmppEvent {
+  MemberChangedEvent(this.roomJid, this.member);
+
+  /// The JID of the room.
+  final JID roomJid;
+
+  /// The new member.
+  final RoomMember member;
+}
+
+/// Triggered when an entity leaves the MUC.
+class MemberLeftEvent extends XmppEvent {
+  MemberLeftEvent(this.roomJid, this.nick);
+
+  /// The JID of the room.
+  final JID roomJid;
+
+  /// The nick of the user who left.
+  final String nick;
+}
+
+/// Triggered when an entity changes their nick.
+class MemberChangedNickEvent extends XmppEvent {
+  MemberChangedNickEvent(this.roomJid, this.oldNick, this.newNick);
+
+  /// The JID of the room.
+  final JID roomJid;
+
+  /// The original nick.
+  final String oldNick;
+
+  /// The new nick.
+  final String newNick;
+}

packages/moxxmpp/lib/src/xeps/xep_0045/status_codes.dart

@@ -0,0 +1,2 @@
+const selfPresenceStatus = '110';
+const nicknameChangedStatus = '303';

packages/moxxmpp/lib/src/xeps/xep_0045/types.dart

@@ -0,0 +1,163 @@
+import 'package:collection/collection.dart';
+import 'package:moxxmpp/src/jid.dart';
+import 'package:moxxmpp/src/namespaces.dart';
+import 'package:moxxmpp/src/xeps/xep_0004.dart';
+import 'package:moxxmpp/src/xeps/xep_0030/types.dart';
+
+class InvalidAffiliationException implements Exception {}
+
+class InvalidRoleException implements Exception {}
+
+enum Affiliation {
+  owner('owner'),
+  admin('admin'),
+  member('member'),
+  outcast('outcast'),
+  none('none');
+
+  const Affiliation(this.value);
+
+  factory Affiliation.fromString(String value) {
+    switch (value) {
+      case 'owner':
+        return Affiliation.owner;
+      case 'admin':
+        return Affiliation.admin;
+      case 'member':
+        return Affiliation.member;
+      case 'outcast':
+        return Affiliation.outcast;
+      case 'none':
+        return Affiliation.none;
+      default:
+        throw InvalidAffiliationException();
+    }
+  }
+
+  /// The value to use for an attribute referring to this affiliation.
+  final String value;
+}
+
+enum Role {
+  moderator('moderator'),
+  participant('participant'),
+  visitor('visitor'),
+  none('none');
+
+  const Role(this.value);
+
+  factory Role.fromString(String value) {
+    switch (value) {
+      case 'moderator':
+        return Role.moderator;
+      case 'participant':
+        return Role.participant;
+      case 'visitor':
+        return Role.visitor;
+      case 'none':
+        return Role.none;
+      default:
+        throw InvalidRoleException();
+    }
+  }
+
+  /// The value to use for an attribute referring to this role.
+  final String value;
+}
+
+class RoomInformation {
+  /// Represents information about a Multi-User Chat (MUC) room.
+  RoomInformation({
+    required this.jid,
+    required this.features,
+    required this.name,
+    this.roomInfo,
+  });
+
+  /// Constructs a [RoomInformation] object from a [DiscoInfo] object.
+  /// The [DiscoInfo] object contains the necessary information to populate
+  /// the [RoomInformation] fields.
+  factory RoomInformation.fromDiscoInfo({
+    required DiscoInfo discoInfo,
+  }) =>
+      RoomInformation(
+        jid: discoInfo.jid!,
+        features: discoInfo.features,
+        name: discoInfo.identities
+            .firstWhere((i) => i.category == 'conference')
+            .name!,
+        roomInfo: discoInfo.extendedInfo.firstWhereOrNull((form) {
+          final field = form.getFieldByVar(formVarFormType);
+          return field?.type == 'hidden' &&
+              field?.values.first == roomInfoFormType;
+        }),
+      );
+
+  /// The JID of the Multi-User Chat (MUC) room.
+  final JID jid;
+
+  /// A list of features supported by the Multi-User Chat (MUC) room.
+  final List<String> features;
+
+  /// The name or title of the Multi-User Chat (MUC) room.
+  final String name;
+
+  /// The data form containing room information.
+  final DataForm? roomInfo;
+}
+
+/// The used message-id and an optional origin-id.
+typedef PendingMessage = (String, String?);
+
+/// An entity inside a MUC room. The name "member" here does not refer to an affiliation of member.
+class RoomMember {
+  const RoomMember(this.nick, this.affiliation, this.role);
+
+  /// The entity's nickname.
+  final String nick;
+
+  /// The assigned affiliation.
+  final Affiliation affiliation;
+
+  /// The assigned role.
+  final Role role;
+
+  RoomMember copyWith({
+    String? nick,
+    Affiliation? affiliation,
+    Role? role,
+  }) {
+    return RoomMember(
+      nick ?? this.nick,
+      affiliation ?? this.affiliation,
+      role ?? this.role,
+    );
+  }
+}
+
+class RoomState {
+  RoomState({required this.roomJid, this.nick, required this.joined}) {
+    pendingMessages = List<PendingMessage>.empty(growable: true);
+  }
+
+  /// The JID of the room.
+  final JID roomJid;
+
+  /// The nick we're joined with.
+  String? nick;
+
+  /// Flag whether we're joined and can process messages
+  bool joined;
+
+  /// Our own affiliation inside the MUC.
+  Affiliation? affiliation;
+
+  /// Our own role inside the MUC.
+  Role? role;
+
+  /// The list of messages that we sent and are waiting for their echo.
+  late final List<PendingMessage> pendingMessages;
+
+  /// "List" of entities inside the MUC.
+  final Map<String, RoomMember> members = {};
+}

packages/moxxmpp/lib/src/xeps/xep_0045/xep_0045.dart

@@ -0,0 +1,512 @@
+import 'dart:async';
+import 'package:moxlib/moxlib.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/presence.dart';
+import 'package:moxxmpp/src/stanza.dart';
+import 'package:moxxmpp/src/stringxml.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_0045/errors.dart';
+import 'package:moxxmpp/src/xeps/xep_0045/events.dart';
+import 'package:moxxmpp/src/xeps/xep_0045/status_codes.dart';
+import 'package:moxxmpp/src/xeps/xep_0045/types.dart';
+import 'package:moxxmpp/src/xeps/xep_0359.dart';
+import 'package:synchronized/synchronized.dart';
+
+/// (Room JID, nickname)
+typedef MUCRoomJoin = (JID, String);
+
+class MUCManager extends XmppManagerBase {
+  MUCManager() : super(mucManager);
+
+  @override
+  Future<bool> isSupported() async => true;
+
+  /// Map a room's JID to its RoomState
+  final Map<JID, RoomState> _mucRoomCache = {};
+
+  /// Mapp a room's JID to a completer waiting for the completion of the join process.
+  final Map<JID, Completer<Result<bool, MUCError>>> _mucRoomJoinCompleter = {};
+
+  /// Cache lock
+  final Lock _cacheLock = Lock();
+
+  /// Flag indicating whether we joined the rooms added to the room list with
+  /// [prepareRoomList].
+  bool _joinedPreparedRooms = true;
+
+  @override
+  List<StanzaHandler> getIncomingStanzaHandlers() => [
+        StanzaHandler(
+          stanzaTag: 'message',
+          callback: _onMessage,
+          // Before the message handler
+          priority: -99,
+        ),
+        StanzaHandler(
+          stanzaTag: 'presence',
+          callback: _onPresence,
+          tagName: 'x',
+          tagXmlns: mucUserXmlns,
+          // Before the PresenceManager
+          priority: PresenceManager.presenceHandlerPriority + 1,
+        ),
+      ];
+
+  @override
+  List<StanzaHandler> getOutgoingPreStanzaHandlers() => [
+        StanzaHandler(
+          stanzaTag: 'message',
+          callback: _onMessageSent,
+        ),
+      ];
+
+  @override
+  Future<void> onXmppEvent(XmppEvent event) async {
+    if (event is! StreamNegotiationsDoneEvent) {
+      return;
+    }
+
+    // Only attempt rejoining if we did not resume the stream and all
+    // prepared rooms are already joined.
+    if (event.resumed && _joinedPreparedRooms) {
+      return;
+    }
+
+    final mucJoins = List<MUCRoomJoin>.empty(growable: true);
+    await _cacheLock.synchronized(() async {
+      // Mark all groupchats as not joined.
+      for (final jid in _mucRoomCache.keys) {
+        _mucRoomCache[jid]!.joined = false;
+        _mucRoomJoinCompleter[jid] = Completer();
+
+        // Re-join all MUCs.
+        final state = _mucRoomCache[jid]!;
+        mucJoins.add((jid, state.nick!));
+      }
+    });
+
+    for (final join in mucJoins) {
+      final (jid, nick) = join;
+      await _sendMucJoin(
+        jid,
+        nick,
+        0,
+      );
+    }
+    _joinedPreparedRooms = true;
+  }
+
+  /// Prepares the internal room list to ensure that the rooms
+  /// [rooms] are joined once we are connected.
+  Future<void> prepareRoomList(List<MUCRoomJoin> rooms) async {
+    assert(
+      rooms.isNotEmpty,
+      'The room list should not be empty',
+    );
+
+    await _cacheLock.synchronized(() {
+      _joinedPreparedRooms = false;
+      for (final room in rooms) {
+        final (roomJid, nick) = room;
+        _mucRoomCache[roomJid] = RoomState(
+          roomJid: roomJid,
+          nick: nick,
+          joined: false,
+        );
+      }
+    });
+  }
+
+  /// Queries the information of a Multi-User Chat room.
+  ///
+  /// Retrieves the information about the specified MUC room by performing a
+  /// disco info query. Returns a [Result] with the [RoomInformation] on success
+  /// or an appropriate [MUCError] on failure.
+  Future<Result<RoomInformation, MUCError>> queryRoomInformation(
+    JID roomJID,
+  ) async {
+    final result = await getAttributes()
+        .getManagerById<DiscoManager>(discoManager)!
+        .discoInfoQuery(roomJID);
+    if (result.isType<StanzaError>()) {
+      return Result(InvalidStanzaFormat());
+    }
+    try {
+      final roomInformation = RoomInformation.fromDiscoInfo(
+        discoInfo: result.get<DiscoInfo>(),
+      );
+      return Result(roomInformation);
+    } catch (e) {
+      logger.warning('Invalid disco information: $e');
+      return Result(InvalidDiscoInfoResponse());
+    }
+  }
+
+  /// Joins a Multi-User Chat room.
+  ///
+  /// Joins the specified MUC room using the provided nickname. Sends a presence
+  /// stanza with the appropriate attributes to join the room. Returns a [Result]
+  /// with a boolean value indicating success or failure, or an [MUCError]
+  /// if applicable.
+  Future<Result<bool, MUCError>> joinRoom(
+    JID roomJid,
+    String nick, {
+    int? maxHistoryStanzas,
+  }) async {
+    if (nick.isEmpty) {
+      return Result(NoNicknameSpecified());
+    }
+
+    final completer =
+        await _cacheLock.synchronized<Completer<Result<bool, MUCError>>>(
+      () {
+        _mucRoomCache[roomJid] = RoomState(
+          roomJid: roomJid,
+          nick: nick,
+          joined: false,
+        );
+
+        final completer = Completer<Result<bool, MUCError>>();
+        _mucRoomJoinCompleter[roomJid] = completer;
+        return completer;
+      },
+    );
+
+    await _sendMucJoin(roomJid, nick, maxHistoryStanzas);
+    return completer.future;
+  }
+
+  Future<void> _sendMucJoin(
+    JID roomJid,
+    String nick,
+    int? maxHistoryStanzas,
+  ) async {
+    await getAttributes().sendStanza(
+      StanzaDetails(
+        Stanza.presence(
+          to: roomJid.withResource(nick).toString(),
+          children: [
+            XMLNode.xmlns(
+              tag: 'x',
+              xmlns: mucXmlns,
+              children: [
+                if (maxHistoryStanzas != null)
+                  XMLNode(
+                    tag: 'history',
+                    attributes: {
+                      'maxstanzas': maxHistoryStanzas.toString(),
+                    },
+                  ),
+              ],
+            ),
+          ],
+        ),
+        awaitable: false,
+      ),
+    );
+  }
+
+  /// Leaves a Multi-User Chat room.
+  ///
+  /// Leaves the specified MUC room by sending an 'unavailable' presence stanza.
+  /// Removes the corresponding room entry from the cache. Returns a [Result]
+  /// with a boolean value indicating success or failure, or an [MUCError]
+  /// if applicable.
+  Future<Result<bool, MUCError>> leaveRoom(
+    JID roomJid,
+  ) async {
+    final nick = await _cacheLock.synchronized(() {
+      final nick = _mucRoomCache[roomJid]?.nick;
+      _mucRoomCache.remove(roomJid);
+      return nick;
+    });
+    if (nick == null) {
+      return Result(RoomNotJoinedError());
+    }
+    await getAttributes().sendStanza(
+      StanzaDetails(
+        Stanza.presence(
+          to: roomJid.withResource(nick).toString(),
+          type: 'unavailable',
+        ),
+        awaitable: false,
+      ),
+    );
+    return const Result(true);
+  }
+
+  Future<RoomState?> getRoomState(JID roomJid) async {
+    return _cacheLock.synchronized(() => _mucRoomCache[roomJid]);
+  }
+
+  Future<StanzaHandlerData> _onPresence(
+    Stanza presence,
+    StanzaHandlerData state,
+  ) async {
+    if (presence.from == null) {
+      logger.finest('Ignoring presence as it has no from attribute');
+      return state;
+    }
+
+    final from = JID.fromString(presence.from!);
+    final bareFrom = from.toBare();
+    return _cacheLock.synchronized(() {
+      logger.finest('Lock aquired for presence from ${presence.from}');
+      final room = _mucRoomCache[bareFrom];
+      if (room == null) {
+        logger.finest('Ignoring presence as it does not belong to a room');
+        return state;
+      }
+
+      if (from.resource.isEmpty) {
+        // TODO(Unknown): Handle presence from the room itself.
+        logger.finest('Ignoring presence as it has no resource');
+        return state;
+      }
+
+      if (presence.type == 'error') {
+        final errorTag = presence.firstTag('error')!;
+        final error = errorTag.firstTagByXmlns(fullStanzaXmlns)!;
+        Result<bool, MUCError> result;
+        if (error.tag == 'forbidden') {
+          result = Result(JoinForbiddenError());
+        } else {
+          result = Result(MUCUnspecificError());
+        }
+
+        _mucRoomCache.remove(bareFrom);
+        _mucRoomJoinCompleter[bareFrom]!.complete(result);
+        _mucRoomJoinCompleter.remove(bareFrom);
+        return StanzaHandlerData(
+          true,
+          false,
+          presence,
+          state.extensions,
+        );
+      }
+
+      final x = presence.firstTag('x', xmlns: mucUserXmlns)!;
+      final item = x.firstTag('item')!;
+      final statuses = x
+          .findTags('status')
+          .map((s) => s.attributes['code']! as String)
+          .toList();
+      final role = Role.fromString(
+        item.attributes['role']! as String,
+      );
+      final affiliation = Affiliation.fromString(
+        item.attributes['affiliation']! as String,
+      );
+
+      if (statuses.contains(selfPresenceStatus)) {
+        if (room.joined) {
+          if (room.nick != from.resource ||
+              room.affiliation != affiliation ||
+              room.role != role) {
+            // Notify us of the changed data.
+            getAttributes().sendEvent(
+              OwnDataChangedEvent(
+                bareFrom,
+                from.resource,
+                affiliation,
+                role,
+              ),
+            );
+          }
+        }
+
+        // Set the data to make sure we're in sync with the MUC.
+        room
+          ..nick = from.resource
+          ..affiliation = affiliation
+          ..role = role;
+        logger.finest('Self-presence handled');
+        return StanzaHandlerData(
+          true,
+          false,
+          presence,
+          state.extensions,
+        );
+      }
+
+      if (presence.attributes['type'] == 'unavailable') {
+        if (role == Role.none) {
+          // Cannot happen while joining, so we assume we are joined
+          assert(
+            room.joined,
+            'Should not receive unavailable with role="none" while joining',
+          );
+          room.members.remove(from.resource);
+          getAttributes().sendEvent(
+            MemberLeftEvent(
+              bareFrom,
+              from.resource,
+            ),
+          );
+        } else if (statuses.contains(nicknameChangedStatus)) {
+          assert(
+            room.joined,
+            'Should not receive nick change while joining',
+          );
+          final newNick = item.attributes['nick']! as String;
+          final member = RoomMember(
+            newNick,
+            Affiliation.fromString(
+              item.attributes['affiliation']! as String,
+            ),
+            role,
+          );
+
+          // Remove the old member.
+          room.members.remove(from.resource);
+
+          // Add the "new" member".
+          room.members[newNick] = member;
+
+          // Trigger an event.
+          getAttributes().sendEvent(
+            MemberChangedNickEvent(
+              bareFrom,
+              from.resource,
+              newNick,
+            ),
+          );
+        }
+      } else {
+        final member = RoomMember(
+          from.resource,
+          Affiliation.fromString(
+            item.attributes['affiliation']! as String,
+          ),
+          role,
+        );
+        logger.finest('Got presence from ${from.resource} in $bareFrom');
+        if (room.joined) {
+          if (room.members.containsKey(from.resource)) {
+            getAttributes().sendEvent(
+              MemberChangedEvent(
+                bareFrom,
+                member,
+              ),
+            );
+          } else {
+            getAttributes().sendEvent(
+              MemberJoinedEvent(
+                bareFrom,
+                member,
+              ),
+            );
+          }
+        }
+
+        room.members[from.resource] = member;
+        logger.finest('${from.resource} added to the member list');
+      }
+
+      logger.finest('Ran through');
+      return StanzaHandlerData(
+        true,
+        false,
+        presence,
+        state.extensions,
+      );
+    });
+  }
+
+  Future<StanzaHandlerData> _onMessageSent(
+    Stanza message,
+    StanzaHandlerData state,
+  ) async {
+    if (message.to == null) {
+      return state;
+    }
+    final toJid = JID.fromString(message.to!);
+
+    return _cacheLock.synchronized(() {
+      if (!_mucRoomCache.containsKey(toJid)) {
+        return state;
+      }
+
+      _mucRoomCache[toJid]!.pendingMessages.add(
+        (message.id!, state.extensions.get<StableIdData>()?.originId),
+      );
+      return state;
+    });
+  }
+
+  Future<StanzaHandlerData> _onMessage(
+    Stanza message,
+    StanzaHandlerData state,
+  ) async {
+    final fromJid = JID.fromString(message.from!);
+    final roomJid = fromJid.toBare();
+    return _cacheLock.synchronized(() {
+      logger.finest('Lock aquired for message from ${message.from}');
+      final roomState = _mucRoomCache[roomJid];
+      if (roomState == null) {
+        return state;
+      }
+
+      if (message.type == 'groupchat' && message.firstTag('subject') != null) {
+        // The room subject marks the end of the join flow.
+        if (!roomState.joined) {
+          // Mark the room as joined.
+          _mucRoomCache[roomJid]!.joined = true;
+          _mucRoomJoinCompleter[roomJid]!.complete(
+            const Result(true),
+          );
+          _mucRoomJoinCompleter.remove(roomJid);
+          logger.finest('$roomJid is now joined');
+        }
+
+        // TODO(Unknown): Signal the subject?
+
+        return StanzaHandlerData(
+          true,
+          false,
+          message,
+          state.extensions,
+        );
+      } else {
+        if (!roomState.joined) {
+          // Ignore the discussion history.
+          return StanzaHandlerData(
+            true,
+            false,
+            message,
+            state.extensions,
+          );
+        }
+
+        // Check if this is the message reflection.
+        if (message.id == null) {
+          return state;
+        }
+        final pending =
+            (message.id!, state.extensions.get<StableIdData>()?.originId);
+        if (fromJid.resource == roomState.nick &&
+            roomState.pendingMessages.contains(pending)) {
+          // Silently drop the message.
+          roomState.pendingMessages.remove(pending);
+
+          // TODO(Unknown): Maybe send an event stating that we received the reflection.
+          return StanzaHandlerData(
+            true,
+            false,
+            message,
+            state.extensions,
+          );
+        }
+      }
+
+      return state;
+    });
+  }
+}

packages/moxxmpp/lib/src/xeps/xep_0054.dart

@@ -1,3 +1,4 @@
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/base.dart';
@@ -7,7 +8,6 @@ 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/types/result.dart';
 
 abstract class VCardError {}
 
@@ -38,7 +38,7 @@ class VCardManager extends XmppManagerBase {
           tagName: 'x',
           tagXmlns: vCardTempUpdate,
           callback: _onPresence,
-        )
+        ),
       ];
 
   @override
@@ -56,27 +56,13 @@ class VCardManager extends XmppManagerBase {
     final x = presence.firstTag('x', xmlns: vCardTempUpdate)!;
     final hash = x.firstTag('photo')!.innerText();
 
-    final from = JID.fromString(presence.from!).toBare().toString();
-    final lastHash = _lastHash[from];
-    if (lastHash != hash) {
-      _lastHash[from] = hash;
-      final vcardResult = await requestVCard(from);
-
-      if (vcardResult.isType<VCard>()) {
-        final binval = vcardResult.get<VCard>().photo?.binval;
-        if (binval != null) {
     getAttributes().sendEvent(
-            VCardAvatarUpdatedEvent(JID.fromString(from), binval, hash),
+      VCardAvatarUpdatedEvent(
+        JID.fromString(presence.from!),
+        hash,
+      ),
     );
-        } else {
+    return state;
-          logger.warning('No avatar data found');
-        }
-      } else {
-        logger.warning('Failed to retrieve vCard for $from');
-      }
-    }
-
-    return state..done = true;
   }
 
   VCardPhoto? _parseVCardPhoto(XMLNode? node) {
@@ -98,17 +84,17 @@ class VCardManager extends XmppManagerBase {
     );
   }
 
-  Future<Result<VCardError, VCard>> requestVCard(String jid) async {
+  Future<Result<VCardError, VCard>> requestVCard(JID jid) async {
     final result = (await getAttributes().sendStanza(
       StanzaDetails(
         Stanza.iq(
-          to: jid,
+          to: jid.toString(),
           type: 'get',
           children: [
             XMLNode.xmlns(
               tag: 'vCard',
               xmlns: vCardTempXmlns,
-            )
+            ),
           ],
         ),
         encrypted: true,

packages/moxxmpp/lib/src/xeps/xep_0060/xep_0060.dart

@@ -1,5 +1,5 @@
-import 'package:freezed_annotation/freezed_annotation.dart';
 import 'package:meta/meta.dart';
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/base.dart';
@@ -9,7 +9,6 @@ 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/types/result.dart';
 import 'package:moxxmpp/src/xeps/xep_0004.dart';
 import 'package:moxxmpp/src/xeps/xep_0030/errors.dart';
 import 'package:moxxmpp/src/xeps/xep_0030/types.dart';
@@ -39,26 +38,20 @@ class PubSubPublishOptions {
           varAttr: 'FORM_TYPE',
           type: 'hidden',
         ),
-        ...accessModel != null
+        if (accessModel != null)
-            ? [
           DataFormField(
             options: [],
             isRequired: false,
             values: [accessModel!],
             varAttr: 'pubsub#access_model',
-                )
+          ),
-              ]
+        if (maxItems != null)
-            : [],
-        ...maxItems != null
-            ? [
           DataFormField(
             options: [],
             isRequired: false,
             values: [maxItems!],
             varAttr: 'pubsub#max_items',
           ),
-              ]
-            : [],
       ],
     ).toXml();
   }
@@ -88,7 +81,7 @@ class PubSubManager extends XmppManagerBase {
           tagName: 'event',
           tagXmlns: pubsubEventXmlns,
           callback: _onPubsubMessage,
-        )
+        ),
       ];
 
   @override
@@ -202,6 +195,7 @@ class PubSubManager extends XmppManagerBase {
             ),
           ],
         ),
+        shouldEncrypt: false,
       ),
     ))!;
 
@@ -245,6 +239,7 @@ class PubSubManager extends XmppManagerBase {
             ),
           ],
         ),
+        shouldEncrypt: false,
       ),
     ))!;
 
@@ -313,11 +308,11 @@ class PubSubManager extends XmppManagerBase {
                   children: [
                     XMLNode(
                       tag: 'item',
-                      attributes: id != null
+                      attributes: {
-                          ? <String, String>{'id': id}
+                        if (id != null) 'id': id,
-                          : <String, String>{},
+                      },
                       children: [payload],
-                    )
+                    ),
                   ],
                 ),
                 if (pubOptions != null)
@@ -326,9 +321,10 @@ class PubSubManager extends XmppManagerBase {
                     children: [pubOptions.toXml()],
                   ),
               ],
-            )
+            ),
           ],
         ),
+        shouldEncrypt: false,
       ),
     ))!;
     if (result.attributes['type'] != 'result') {
@@ -399,8 +395,9 @@ class PubSubManager extends XmppManagerBase {
 
   Future<Result<PubSubError, List<PubSubItem>>> getItems(
     JID jid,
-    String node,
+    String node, {
-  ) async {
+    int? maxItems,
+  }) async {
     final result = (await getAttributes().sendStanza(
       StanzaDetails(
         Stanza.iq(
@@ -413,12 +410,16 @@ class PubSubManager extends XmppManagerBase {
               children: [
                 XMLNode(
                   tag: 'items',
-                  attributes: <String, String>{'node': node},
+                  attributes: {
+                    'node': node,
+                    if (maxItems != null) 'max_items': maxItems.toString(),
+                  },
                 ),
               ],
-            )
+            ),
           ],
         ),
+        shouldEncrypt: false,
       ),
     ))!;
 
@@ -443,7 +444,7 @@ class PubSubManager extends XmppManagerBase {
   }
 
   Future<Result<PubSubError, PubSubItem>> getItem(
-    String jid,
+    JID jid,
     String node,
     String id,
   ) async {
@@ -451,7 +452,7 @@ class PubSubManager extends XmppManagerBase {
       StanzaDetails(
         Stanza.iq(
           type: 'get',
-          to: jid,
+          to: jid.toString(),
           children: [
             XMLNode.xmlns(
               tag: 'pubsub',
@@ -471,6 +472,7 @@ class PubSubManager extends XmppManagerBase {
             ),
           ],
         ),
+        shouldEncrypt: false,
       ),
     ))!;
 
@@ -521,6 +523,7 @@ class PubSubManager extends XmppManagerBase {
             ),
           ],
         ),
+        shouldEncrypt: false,
       ),
     ))!;
     if (form.attributes['type'] != 'result') {
@@ -550,6 +553,7 @@ class PubSubManager extends XmppManagerBase {
             ),
           ],
         ),
+        shouldEncrypt: false,
       ),
     ))!;
     if (submit.attributes['type'] != 'result') {
@@ -580,6 +584,7 @@ class PubSubManager extends XmppManagerBase {
             ),
           ],
         ),
+        shouldEncrypt: false,
       ),
     ))!;
 
@@ -624,6 +629,7 @@ class PubSubManager extends XmppManagerBase {
             ),
           ],
         ),
+        shouldEncrypt: false,
       ),
     ))!;
 

packages/moxxmpp/lib/src/xeps/xep_0066.dart

@@ -45,7 +45,7 @@ class OOBManager extends XmppManagerBase {
           callback: _onMessage,
           // Before the message manager
           priority: -99,
-        )
+        ),
       ];
 
   @override

packages/moxxmpp/lib/src/xeps/xep_0084.dart

@@ -1,14 +1,11 @@
 import 'dart:convert';
+import 'package:moxlib/moxlib.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/namespaces.dart';
 import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.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_0060/errors.dart';
 import 'package:moxxmpp/src/xeps/xep_0060/xep_0060.dart';
 
@@ -16,6 +13,7 @@ abstract class AvatarError {}
 
 class UnknownAvatarError extends AvatarError {}
 
+/// The result of a successful query of a users avatar.
 class UserAvatarData {
   const UserAvatarData(this.base64, this.hash);
 
@@ -26,7 +24,9 @@ class UserAvatarData {
   final String hash;
 
   /// The raw avatar data.
-  List<int> get data => base64Decode(base64);
+  /// NOTE: Remove newlines because "Line feeds SHOULD NOT be added but MUST be accepted"
+  /// (https://xmpp.org/extensions/xep-0084.html#proto-data).
+  List<int> get data => base64Decode(base64.replaceAll('\n', ''));
 }
 
 class UserAvatarMetadata {
@@ -40,11 +40,7 @@ class UserAvatarMetadata {
   );
 
   factory UserAvatarMetadata.fromXML(XMLNode node) {
-    assert(
+    assert(node.tag == 'info', 'node must be an <info /> element');
-      node.tag == 'metadata' &&
-          node.attributes['xmlns'] == userAvatarMetadataXmlns,
-      '<metadata /> element required',
-    );
 
     final width = node.attributes['width'] as String?;
     final height = node.attributes['height'] as String?;
@@ -118,20 +114,44 @@ class UserAvatarManager extends XmppManagerBase {
 
   /// Requests the avatar from [jid]. Returns the avatar data if the request was
   /// successful. Null otherwise
-  Future<Result<AvatarError, UserAvatarData>> getUserAvatar(JID jid) async {
+  Future<Result<AvatarError, UserAvatarData>> getUserAvatarData(
+    JID jid,
+    String id,
+  ) async {
     final pubsub = _getPubSubManager();
-    final resultsRaw = await pubsub.getItems(jid, userAvatarDataXmlns);
+    final resultRaw = await pubsub.getItem(jid, userAvatarDataXmlns, id);
+    if (resultRaw.isType<PubSubError>()) return Result(UnknownAvatarError());
+
+    final result = resultRaw.get<PubSubItem>();
+    return Result(
+      UserAvatarData(
+        result.payload.innerText(),
+        id,
+      ),
+    );
+  }
+
+  /// Attempts to fetch the latest item from the User Avatar metadata node. Returns the list of
+  /// metadata contained within it. The list may be empty.
+  ///
+  /// If an error occured, returns an [AvatarError].
+  Future<Result<AvatarError, List<UserAvatarMetadata>>> getLatestMetadata(
+    JID jid,
+  ) async {
+    final resultsRaw = await _getPubSubManager()
+        .getItems(jid, userAvatarMetadataXmlns, maxItems: 1);
     if (resultsRaw.isType<PubSubError>()) return Result(UnknownAvatarError());
 
     final results = resultsRaw.get<List<PubSubItem>>();
-    if (results.isEmpty) return Result(UnknownAvatarError());
+    if (results.isEmpty) {
+      return Result(UnknownAvatarError());
+    }
 
-    final item = results[0];
     return Result(
-      UserAvatarData(
+      results.first.payload
-        item.payload.innerText(),
+          .findTags('info')
-        item.id,
+          .map(UserAvatarMetadata.fromXML)
-      ),
+          .toList(),
     );
   }
 
@@ -213,22 +233,4 @@ class UserAvatarManager extends XmppManagerBase {
 
     return const Result(true);
   }
-
-  /// Returns the PubSub Id of an avatar after doing a disco#items query.
-  /// Note that this assumes that there is only one (1) item published on
-  /// the node.
-  Future<Result<AvatarError, String>> getAvatarId(JID jid) async {
-    final disco = getAttributes().getManagerById(discoManager)! as DiscoManager;
-    final response = await disco.discoItemsQuery(
-      jid,
-      node: userAvatarDataXmlns,
-      shouldEncrypt: false,
-    );
-    if (response.isType<DiscoError>()) return Result(UnknownAvatarError());
-
-    final items = response.get<List<DiscoItem>>();
-    if (items.isEmpty) return Result(UnknownAvatarError());
-
-    return Result(items.first.name);
-  }
 }

packages/moxxmpp/lib/src/xeps/xep_0085.dart

@@ -69,7 +69,7 @@ class ChatStateManager extends XmppManagerBase {
           callback: _onChatStateReceived,
           // Before the message handler
           priority: -99,
-        )
+        ),
       ];
 
   @override

packages/moxxmpp/lib/src/xeps/xep_0115.dart

@@ -15,7 +15,6 @@ import 'package:moxxmpp/src/stringxml.dart';
 import 'package:moxxmpp/src/util/list.dart';
 import 'package:moxxmpp/src/xeps/xep_0004.dart';
 import 'package:moxxmpp/src/xeps/xep_0030/cache.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_0300.dart';
@@ -174,39 +173,20 @@ class EntityCapabilitiesManager extends XmppManagerBase {
     });
   }
 
-  @visibleForTesting
+  Future<void> _performQuery(
-  Future<StanzaHandlerData> onPresence(
+    Stanza presence,
-    Stanza stanza,
+    String ver,
-    StanzaHandlerData state,
+    String hashFunctionName,
+    String capabilityNode,
+    JID from,
   ) async {
-    if (stanza.from == null) {
-      return state;
-    }
-
-    final from = JID.fromString(stanza.from!);
-    final c = stanza.firstTag('c', xmlns: capsXmlns)!;
-
-    final hashFunctionName = c.attributes['hash'] as String?;
-    final capabilityNode = c.attributes['node'] as String?;
-    final ver = c.attributes['ver'] as String?;
-    if (hashFunctionName == null || capabilityNode == null || ver == null) {
-      return state;
-    }
-
-    // Check if we know of the hash
-    final isCached =
-        await _cacheLock.synchronized(() => _capHashCache.containsKey(ver));
-    if (isCached) {
-      return state;
-    }
-
     final dm = getAttributes().getManagerById<DiscoManager>(discoManager)!;
     final discoRequest = await dm.discoInfoQuery(
       from,
       node: capabilityNode,
     );
-    if (discoRequest.isType<DiscoError>()) {
+    if (discoRequest.isType<StanzaError>()) {
-      return state;
+      return;
     }
     final discoInfo = discoRequest.get<DiscoInfo>();
 
@@ -221,7 +201,7 @@ class EntityCapabilitiesManager extends XmppManagerBase {
           discoInfo,
         ),
       );
-      return state;
+      return;
     }
 
     // Validate the disco#info result according to XEP-0115 § 5.4
@@ -235,7 +215,7 @@ class EntityCapabilitiesManager extends XmppManagerBase {
         logger.warning(
           'Malformed disco#info response: More than one equal identity',
         );
-        return state;
+        return;
       }
     }
 
@@ -246,7 +226,7 @@ class EntityCapabilitiesManager extends XmppManagerBase {
         logger.warning(
           'Malformed disco#info response: More than one equal feature',
         );
-        return state;
+        return;
       }
     }
 
@@ -274,7 +254,7 @@ class EntityCapabilitiesManager extends XmppManagerBase {
           logger.warning(
             'Malformed disco#info response: Extended Info FORM_TYPE contains more than one value(s) of different value.',
           );
-          return state;
+          return;
         }
       }
 
@@ -289,7 +269,7 @@ class EntityCapabilitiesManager extends XmppManagerBase {
         logger.warning(
           'Malformed disco#info response: More than one Extended Disco Info forms with the same FORM_TYPE value',
         );
-        return state;
+        return;
       }
 
       // Check if the field type is hidden
@@ -326,7 +306,43 @@ class EntityCapabilitiesManager extends XmppManagerBase {
         'Capability hash mismatch from $from: Received "$ver", expected "$computedCapabilityHash".',
       );
     }
+  }
 
+  @visibleForTesting
+  Future<StanzaHandlerData> onPresence(
+    Stanza stanza,
+    StanzaHandlerData state,
+  ) async {
+    if (stanza.from == null) {
+      return state;
+    }
+
+    final from = JID.fromString(stanza.from!);
+    final c = stanza.firstTag('c', xmlns: capsXmlns)!;
+
+    final hashFunctionName = c.attributes['hash'] as String?;
+    final capabilityNode = c.attributes['node'] as String?;
+    final ver = c.attributes['ver'] as String?;
+    if (hashFunctionName == null || capabilityNode == null || ver == null) {
+      return state;
+    }
+
+    // Check if we know of the hash
+    final isCached =
+        await _cacheLock.synchronized(() => _capHashCache.containsKey(ver));
+    if (isCached) {
+      return state;
+    }
+
+    unawaited(
+      _performQuery(
+        stanza,
+        ver,
+        hashFunctionName,
+        capabilityNode,
+        from,
+      ),
+    );
     return state;
   }
 

packages/moxxmpp/lib/src/xeps/xep_0184.dart

@@ -66,7 +66,7 @@ class MessageDeliveryReceiptManager extends XmppManagerBase {
           callback: _onDeliveryRequestReceived,
           // Before the message handler
           priority: -99,
-        )
+        ),
       ];
 
   @override

packages/moxxmpp/lib/src/xeps/xep_0191.dart

@@ -27,7 +27,7 @@ class BlockingManager extends XmppManagerBase {
           tagName: 'block',
           tagXmlns: blockingXmlns,
           callback: _blockPush,
-        )
+        ),
       ];
 
   @override
@@ -107,10 +107,12 @@ class BlockingManager extends XmppManagerBase {
               children: items.map((item) {
                 return XMLNode(
                   tag: 'item',
-                  attributes: <String, String>{'jid': item},
+                  attributes: {
+                    'jid': item,
+                  },
                 );
               }).toList(),
-            )
+            ),
           ],
         ),
       ),
@@ -128,7 +130,7 @@ class BlockingManager extends XmppManagerBase {
             XMLNode.xmlns(
               tag: 'unblock',
               xmlns: blockingXmlns,
-            )
+            ),
           ],
         ),
       ),
@@ -152,11 +154,13 @@ class BlockingManager extends XmppManagerBase {
                   .map(
                     (item) => XMLNode(
                       tag: 'item',
-                      attributes: <String, String>{'jid': item},
+                      attributes: {
+                        'jid': item,
+                      },
                     ),
                   )
                   .toList(),
-            )
+            ),
           ],
         ),
       ),
@@ -174,7 +178,7 @@ class BlockingManager extends XmppManagerBase {
             XMLNode.xmlns(
               tag: 'blocklist',
               xmlns: blockingXmlns,
-            )
+            ),
           ],
         ),
       ),

packages/moxxmpp/lib/src/xeps/xep_0198/negotiator.dart

@@ -1,12 +1,12 @@
 import 'package:collection/collection.dart';
 import 'package:logging/logging.dart';
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/managers/namespaces.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/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 import 'package:moxxmpp/src/xeps/xep_0198/nonzas.dart';
 import 'package:moxxmpp/src/xeps/xep_0198/state.dart';
 import 'package:moxxmpp/src/xeps/xep_0198/xep_0198.dart';
@@ -113,7 +113,7 @@ class StreamManagementNegotiator extends Sasl2FeatureNegotiator
     // We have to do this because we otherwise get a stanza stuck in the queue,
     // thus spamming the server on every <a /> nonza we receive.
     // ignore: cascade_invocations
-    await sm.setState(StreamManagementState(0, 0));
+    await sm.setState(const StreamManagementState(0, 0));
     await sm.commitState();
 
     _resumeFailed = true;

packages/moxxmpp/lib/src/xeps/xep_0198/nonzas.dart

@@ -5,7 +5,10 @@ class StreamManagementEnableNonza extends XMLNode {
   StreamManagementEnableNonza()
       : super(
           tag: 'enable',
-          attributes: <String, String>{'xmlns': smXmlns, 'resume': 'true'},
+          attributes: {
+            'xmlns': smXmlns,
+            'resume': 'true',
+          },
         );
 }
 
@@ -13,10 +16,10 @@ class StreamManagementResumeNonza extends XMLNode {
   StreamManagementResumeNonza(String id, int h)
       : super(
           tag: 'resume',
-          attributes: <String, String>{
+          attributes: {
             'xmlns': smXmlns,
             'previd': id,
-            'h': h.toString()
+            'h': h.toString(),
           },
         );
 }
@@ -25,7 +28,10 @@ class StreamManagementAckNonza extends XMLNode {
   StreamManagementAckNonza(int h)
       : super(
           tag: 'a',
-          attributes: <String, String>{'xmlns': smXmlns, 'h': h.toString()},
+          attributes: {
+            'xmlns': smXmlns,
+            'h': h.toString(),
+          },
         );
 }
 
@@ -33,7 +39,7 @@ class StreamManagementRequestNonza extends XMLNode {
   StreamManagementRequestNonza()
       : super(
           tag: 'r',
-          attributes: <String, String>{
+          attributes: {
             'xmlns': smXmlns,
           },
         );

packages/moxxmpp/lib/src/xeps/xep_0198/state.dart

@@ -1,18 +1,43 @@
-import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:meta/meta.dart';
 
-part 'state.freezed.dart';
+const _smNotSpecified = Object();
-part 'state.g.dart';
 
-@freezed
+@immutable
-class StreamManagementState with _$StreamManagementState {
+class StreamManagementState {
-  factory StreamManagementState(
+  const StreamManagementState(
-    int c2s,
+    this.c2s,
-    int s2c, {
+    this.s2c, {
-    String? streamResumptionLocation,
+    this.streamResumptionLocation,
-    String? streamResumptionId,
+    this.streamResumptionId,
-  }) = _StreamManagementState;
+  });
 
-  // JSON
+  /// The counter of stanzas sent from the client to the server.
-  factory StreamManagementState.fromJson(Map<String, dynamic> json) =>
+  final int c2s;
-      _$StreamManagementStateFromJson(json);
+
+  /// The counter of stanzas sent from the server to the client.
+  final int s2c;
+
+  /// If set, the server's preferred location for resumption.
+  final String? streamResumptionLocation;
+
+  /// If set, the token to allow using stream resumption.
+  final String? streamResumptionId;
+
+  StreamManagementState copyWith({
+    Object c2s = _smNotSpecified,
+    Object s2c = _smNotSpecified,
+    Object? streamResumptionLocation = _smNotSpecified,
+    Object? streamResumptionId = _smNotSpecified,
+  }) {
+    return StreamManagementState(
+      c2s != _smNotSpecified ? c2s as int : this.c2s,
+      s2c != _smNotSpecified ? s2c as int : this.s2c,
+      streamResumptionLocation: streamResumptionLocation != _smNotSpecified
+          ? streamResumptionLocation as String?
+          : this.streamResumptionLocation,
+      streamResumptionId: streamResumptionId != _smNotSpecified
+          ? streamResumptionId as String?
+          : this.streamResumptionId,
+    );
+  }
 }

packages/moxxmpp/lib/src/xeps/xep_0198/state.freezed.dart

@@ -1,217 +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, unnecessary_question_mark
-
-part of 'state.dart';
-
-// **************************************************************************
-// FreezedGenerator
-// **************************************************************************
-
-T _$identity<T>(T value) => value;
-
-final _privateConstructorUsedError = UnsupportedError(
-    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
-
-StreamManagementState _$StreamManagementStateFromJson(
-    Map<String, dynamic> json) {
-  return _StreamManagementState.fromJson(json);
-}
-
-/// @nodoc
-mixin _$StreamManagementState {
-  int get c2s => throw _privateConstructorUsedError;
-  int get s2c => throw _privateConstructorUsedError;
-  String? get streamResumptionLocation => throw _privateConstructorUsedError;
-  String? get streamResumptionId => throw _privateConstructorUsedError;
-
-  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
-  @JsonKey(ignore: true)
-  $StreamManagementStateCopyWith<StreamManagementState> get copyWith =>
-      throw _privateConstructorUsedError;
-}
-
-/// @nodoc
-abstract class $StreamManagementStateCopyWith<$Res> {
-  factory $StreamManagementStateCopyWith(StreamManagementState value,
-          $Res Function(StreamManagementState) then) =
-      _$StreamManagementStateCopyWithImpl<$Res, StreamManagementState>;
-  @useResult
-  $Res call(
-      {int c2s,
-      int s2c,
-      String? streamResumptionLocation,
-      String? streamResumptionId});
-}
-
-/// @nodoc
-class _$StreamManagementStateCopyWithImpl<$Res,
-        $Val extends StreamManagementState>
-    implements $StreamManagementStateCopyWith<$Res> {
-  _$StreamManagementStateCopyWithImpl(this._value, this._then);
-
-  // ignore: unused_field
-  final $Val _value;
-  // ignore: unused_field
-  final $Res Function($Val) _then;
-
-  @pragma('vm:prefer-inline')
-  @override
-  $Res call({
-    Object? c2s = null,
-    Object? s2c = null,
-    Object? streamResumptionLocation = freezed,
-    Object? streamResumptionId = freezed,
-  }) {
-    return _then(_value.copyWith(
-      c2s: null == c2s
-          ? _value.c2s
-          : c2s // ignore: cast_nullable_to_non_nullable
-              as int,
-      s2c: null == s2c
-          ? _value.s2c
-          : s2c // ignore: cast_nullable_to_non_nullable
-              as int,
-      streamResumptionLocation: freezed == streamResumptionLocation
-          ? _value.streamResumptionLocation
-          : streamResumptionLocation // ignore: cast_nullable_to_non_nullable
-              as String?,
-      streamResumptionId: freezed == streamResumptionId
-          ? _value.streamResumptionId
-          : streamResumptionId // ignore: cast_nullable_to_non_nullable
-              as String?,
-    ) as $Val);
-  }
-}
-
-/// @nodoc
-abstract class _$$_StreamManagementStateCopyWith<$Res>
-    implements $StreamManagementStateCopyWith<$Res> {
-  factory _$$_StreamManagementStateCopyWith(_$_StreamManagementState value,
-          $Res Function(_$_StreamManagementState) then) =
-      __$$_StreamManagementStateCopyWithImpl<$Res>;
-  @override
-  @useResult
-  $Res call(
-      {int c2s,
-      int s2c,
-      String? streamResumptionLocation,
-      String? streamResumptionId});
-}
-
-/// @nodoc
-class __$$_StreamManagementStateCopyWithImpl<$Res>
-    extends _$StreamManagementStateCopyWithImpl<$Res, _$_StreamManagementState>
-    implements _$$_StreamManagementStateCopyWith<$Res> {
-  __$$_StreamManagementStateCopyWithImpl(_$_StreamManagementState _value,
-      $Res Function(_$_StreamManagementState) _then)
-      : super(_value, _then);
-
-  @pragma('vm:prefer-inline')
-  @override
-  $Res call({
-    Object? c2s = null,
-    Object? s2c = null,
-    Object? streamResumptionLocation = freezed,
-    Object? streamResumptionId = freezed,
-  }) {
-    return _then(_$_StreamManagementState(
-      null == c2s
-          ? _value.c2s
-          : c2s // ignore: cast_nullable_to_non_nullable
-              as int,
-      null == s2c
-          ? _value.s2c
-          : s2c // ignore: cast_nullable_to_non_nullable
-              as int,
-      streamResumptionLocation: freezed == streamResumptionLocation
-          ? _value.streamResumptionLocation
-          : streamResumptionLocation // ignore: cast_nullable_to_non_nullable
-              as String?,
-      streamResumptionId: freezed == streamResumptionId
-          ? _value.streamResumptionId
-          : streamResumptionId // ignore: cast_nullable_to_non_nullable
-              as String?,
-    ));
-  }
-}
-
-/// @nodoc
-@JsonSerializable()
-class _$_StreamManagementState implements _StreamManagementState {
-  _$_StreamManagementState(this.c2s, this.s2c,
-      {this.streamResumptionLocation, this.streamResumptionId});
-
-  factory _$_StreamManagementState.fromJson(Map<String, dynamic> json) =>
-      _$$_StreamManagementStateFromJson(json);
-
-  @override
-  final int c2s;
-  @override
-  final int s2c;
-  @override
-  final String? streamResumptionLocation;
-  @override
-  final String? streamResumptionId;
-
-  @override
-  String toString() {
-    return 'StreamManagementState(c2s: $c2s, s2c: $s2c, streamResumptionLocation: $streamResumptionLocation, streamResumptionId: $streamResumptionId)';
-  }
-
-  @override
-  bool operator ==(dynamic other) {
-    return identical(this, other) ||
-        (other.runtimeType == runtimeType &&
-            other is _$_StreamManagementState &&
-            (identical(other.c2s, c2s) || other.c2s == c2s) &&
-            (identical(other.s2c, s2c) || other.s2c == s2c) &&
-            (identical(
-                    other.streamResumptionLocation, streamResumptionLocation) ||
-                other.streamResumptionLocation == streamResumptionLocation) &&
-            (identical(other.streamResumptionId, streamResumptionId) ||
-                other.streamResumptionId == streamResumptionId));
-  }
-
-  @JsonKey(ignore: true)
-  @override
-  int get hashCode => Object.hash(
-      runtimeType, c2s, s2c, streamResumptionLocation, streamResumptionId);
-
-  @JsonKey(ignore: true)
-  @override
-  @pragma('vm:prefer-inline')
-  _$$_StreamManagementStateCopyWith<_$_StreamManagementState> get copyWith =>
-      __$$_StreamManagementStateCopyWithImpl<_$_StreamManagementState>(
-          this, _$identity);
-
-  @override
-  Map<String, dynamic> toJson() {
-    return _$$_StreamManagementStateToJson(
-      this,
-    );
-  }
-}
-
-abstract class _StreamManagementState implements StreamManagementState {
-  factory _StreamManagementState(final int c2s, final int s2c,
-      {final String? streamResumptionLocation,
-      final String? streamResumptionId}) = _$_StreamManagementState;
-
-  factory _StreamManagementState.fromJson(Map<String, dynamic> json) =
-      _$_StreamManagementState.fromJson;
-
-  @override
-  int get c2s;
-  @override
-  int get s2c;
-  @override
-  String? get streamResumptionLocation;
-  @override
-  String? get streamResumptionId;
-  @override
-  @JsonKey(ignore: true)
-  _$$_StreamManagementStateCopyWith<_$_StreamManagementState> get copyWith =>
-      throw _privateConstructorUsedError;
-}

packages/moxxmpp/lib/src/xeps/xep_0198/state.g.dart

@@ -1,25 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'state.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-_$_StreamManagementState _$$_StreamManagementStateFromJson(
-        Map<String, dynamic> json) =>
-    _$_StreamManagementState(
-      json['c2s'] as int,
-      json['s2c'] as int,
-      streamResumptionLocation: json['streamResumptionLocation'] as String?,
-      streamResumptionId: json['streamResumptionId'] as String?,
-    );
-
-Map<String, dynamic> _$$_StreamManagementStateToJson(
-        _$_StreamManagementState instance) =>
-    <String, dynamic>{
-      'c2s': instance.c2s,
-      's2c': instance.s2c,
-      'streamResumptionLocation': instance.streamResumptionLocation,
-      'streamResumptionId': instance.streamResumptionId,
-    };

packages/moxxmpp/lib/src/xeps/xep_0198/types.dart

@@ -1,8 +1,39 @@
+import 'package:meta/meta.dart';
 import 'package:moxxmpp/src/managers/data.dart';
+import 'package:moxxmpp/src/stanza.dart';
 
 class StreamManagementData implements StanzaHandlerExtension {
-  const StreamManagementData(this.exclude);
+  const StreamManagementData(this.exclude, this.queueId);
 
   /// Whether the stanza should be exluded from the StreamManagement's resend queue.
   final bool exclude;
+
+  /// The ID to use when queuing the stanza.
+  final int? queueId;
+
+  /// If we resend a stanza, then we will have [queueId] set, so we should skip
+  /// incrementing the C2S counter.
+  bool get shouldCountStanza => queueId == null;
+}
+
+/// A queue element for keeping track of stanzas to (potentially) resend.
+@immutable
+class SMQueueEntry {
+  const SMQueueEntry(this.stanza, this.encrypted);
+
+  /// The actual stanza.
+  final Stanza stanza;
+
+  /// Flag indicating whether the stanza was encrypted before sending.
+  final bool encrypted;
+
+  @override
+  bool operator ==(Object other) {
+    return other is SMQueueEntry &&
+        other.stanza == stanza &&
+        other.encrypted == encrypted;
+  }
+
+  @override
+  int get hashCode => stanza.hashCode ^ encrypted.hashCode;
 }

packages/moxxmpp/lib/src/xeps/xep_0198/xep_0198.dart

@@ -11,6 +11,7 @@ import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/negotiators/namespaces.dart';
 import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
+import 'package:moxxmpp/src/util/typed_map.dart';
 import 'package:moxxmpp/src/xeps/xep_0198/errors.dart';
 import 'package:moxxmpp/src/xeps/xep_0198/negotiator.dart';
 import 'package:moxxmpp/src/xeps/xep_0198/nonzas.dart';
@@ -28,10 +29,10 @@ class StreamManagementManager extends XmppManagerBase {
   }) : super(smManager);
 
   /// The queue of stanzas that are not (yet) acked
-  final Map<int, Stanza> _unackedStanzas = {};
+  final Map<int, SMQueueEntry> _unackedStanzas = {};
 
   /// Commitable state of the StreamManagementManager
-  StreamManagementState _state = StreamManagementState(0, 0);
+  StreamManagementState _state = const StreamManagementState(0, 0);
 
   /// Mutex lock for _state
   final Lock _stateLock = Lock();
@@ -61,7 +62,7 @@ class StreamManagementManager extends XmppManagerBase {
 
   /// Functions for testing
   @visibleForTesting
-  Map<int, Stanza> getUnackedStanzas() => _unackedStanzas;
+  Map<int, SMQueueEntry> getUnackedStanzas() => _unackedStanzas;
 
   @visibleForTesting
   Future<int> getPendingAcks() async {
@@ -74,6 +75,17 @@ class StreamManagementManager extends XmppManagerBase {
     return acks;
   }
 
+  @override
+  Future<void> onData() async {
+    // The ack timer does not matter if we are currently in the middle of receiving
+    // data.
+    await _ackLock.synchronized(() {
+      if (_pendingAcks > 0) {
+        _resetAckTimer();
+      }
+    });
+  }
+
   /// Called when a stanza has been acked to decide whether we should trigger a
   /// StanzaAckedEvent.
   ///
@@ -139,7 +151,7 @@ class StreamManagementManager extends XmppManagerBase {
           nonzaTag: 'a',
           nonzaXmlns: smXmlns,
           callback: _handleAckResponse,
-        )
+        ),
       ];
 
   @override
@@ -147,14 +159,14 @@ class StreamManagementManager extends XmppManagerBase {
         StanzaHandler(
           callback: _onServerStanzaReceived,
           priority: 9999,
-        )
+        ),
       ];
 
   @override
   List<StanzaHandler> getOutgoingPostStanzaHandlers() => [
         StanzaHandler(
           callback: _onClientStanzaSent,
-        )
+        ),
       ];
 
   @override
@@ -224,6 +236,12 @@ class StreamManagementManager extends XmppManagerBase {
     _ackTimer = null;
   }
 
+  /// Resets the ack timer.
+  void _resetAckTimer() {
+    _stopAckTimer();
+    _startAckTimer();
+  }
+
   @visibleForTesting
   Future<void> handleAckTimeout() async {
     _stopAckTimer();
@@ -306,12 +324,15 @@ class StreamManagementManager extends XmppManagerBase {
         if (_pendingAcks > 0) {
           // Prevent diff from becoming negative
           final diff = max(_state.c2s - h, 0);
+
+          logger.finest(
+            'Setting _pendingAcks to $diff (was $_pendingAcks before): max(${_state.c2s} - $h, 0)',
+          );
           _pendingAcks = diff;
 
           // Reset the timer
           if (_pendingAcks > 0) {
-            _stopAckTimer();
+            _resetAckTimer();
-            _startAckTimer();
           }
         }
 
@@ -336,15 +357,18 @@ class StreamManagementManager extends XmppManagerBase {
       final attrs = getAttributes();
       final sequences = _unackedStanzas.keys.toList()..sort();
       for (final height in sequences) {
+        logger.finest('Unacked stanza: height $height, h $h');
+
         // Do nothing if the ack does not concern this stanza
         if (height > h) continue;
 
-        final stanza = _unackedStanzas[height]!;
+        logger.finest('Removing stanza with height $height');
+        final entry = _unackedStanzas[height]!;
         _unackedStanzas.remove(height);
 
         // Create a StanzaAckedEvent if the stanza is correct
-        if (shouldTriggerAckedEvent(stanza)) {
+        if (shouldTriggerAckedEvent(entry.stanza)) {
-          attrs.sendEvent(StanzaAckedEvent(stanza));
+          attrs.sendEvent(StanzaAckedEvent(entry.stanza));
         }
       }
 
@@ -401,13 +425,29 @@ class StreamManagementManager extends XmppManagerBase {
     StanzaHandlerData state,
   ) async {
     if (isStreamManagementEnabled()) {
+      final smData = state.extensions.get<StreamManagementData>();
+      logger.finest('Should count stanza: ${smData?.shouldCountStanza}');
+      if (smData?.shouldCountStanza ?? true) {
         await _incrementC2S();
+      }
 
-      if (state.extensions.get<StreamManagementData>()?.exclude ?? false) {
+      if (smData?.exclude ?? false) {
         return state;
       }
 
-      _unackedStanzas[_state.c2s] = stanza;
+      int queueId;
+      if (smData?.queueId != null) {
+        logger.finest('Reusing queue id ${smData!.queueId}');
+        queueId = smData.queueId!;
+      } else {
+        queueId = await _stateLock.synchronized(() => _state.c2s);
+      }
+
+      _unackedStanzas[queueId] = SMQueueEntry(
+        stanza,
+        // Prevent an E2EE message being encrypted again
+        state.encrypted,
+      );
       await _sendAckRequest();
     }
 
@@ -415,16 +455,23 @@ class StreamManagementManager extends XmppManagerBase {
   }
 
   Future<void> _resendStanzas() async {
-    final stanzas = _unackedStanzas.values.toList();
+    final queueCopy = _unackedStanzas.entries.toList();
-    _unackedStanzas.clear();
+    for (final entry in queueCopy) {
-
+      logger.finest(
-    for (final stanza in stanzas) {
+        'Resending ${entry.value.stanza.tag} with id ${entry.value.stanza.attributes["id"]}',
-      logger
+      );
-          .finest('Resending ${stanza.tag} with id ${stanza.attributes["id"]}');
       await getAttributes().sendStanza(
         StanzaDetails(
-          stanza,
+          entry.value.stanza,
+          postSendExtensions: TypedMap<StanzaHandlerExtension>.fromList([
+            StreamManagementData(
+              false,
+              entry.key,
+            ),
+          ]),
           awaitable: false,
+          // Prevent an E2EE message being encrypted again
+          encrypted: entry.value.encrypted,
         ),
       );
     }

packages/moxxmpp/lib/src/xeps/xep_0264.dart

@@ -0,0 +1,59 @@
+import 'package:moxxmpp/src/namespaces.dart';
+import 'package:moxxmpp/src/stringxml.dart';
+
+extension _StringToInt on String {
+  int toInt() => int.parse(this);
+}
+
+class JingleContentThumbnail {
+  const JingleContentThumbnail(
+    this.uri,
+    this.mediaType,
+    this.width,
+    this.height,
+  );
+
+  factory JingleContentThumbnail.fromXML(XMLNode thumbnail) {
+    assert(
+      thumbnail.tag == 'thumbnail',
+      'thumbnail must be Jingle Content Thumbnail',
+    );
+    assert(
+      thumbnail.attributes['xmlns'] == jingleContentThumbnailXmlns,
+      'thumbnail must be Jingle Content Thumbnail',
+    );
+
+    return JingleContentThumbnail(
+      Uri.parse(thumbnail.attributes['uri']! as String),
+      thumbnail.attributes['media-type'] as String?,
+      (thumbnail.attributes['width'] as String?)?.toInt(),
+      (thumbnail.attributes['height'] as String?)?.toInt(),
+    );
+  }
+
+  /// The URI of the thumbnail data.
+  final Uri uri;
+
+  /// The MIME type of the thumbnail
+  final String? mediaType;
+
+  /// The width of the thumbnail.
+  final int? width;
+
+  /// The height of the thumbnail.
+  final int? height;
+
+  /// Convert the thumbnail to its XML representation.
+  XMLNode toXML() {
+    return XMLNode.xmlns(
+      tag: 'thumbnail',
+      xmlns: jingleContentThumbnailXmlns,
+      attributes: {
+        'uri': uri.toString(),
+        if (mediaType != null) 'media-type': mediaType!,
+        if (width != null) 'width': width.toString(),
+        if (height != null) 'height': height.toString(),
+      },
+    );
+  }
+}

packages/moxxmpp/lib/src/xeps/xep_0280.dart

@@ -49,7 +49,7 @@ class CarbonsManager extends XmppManagerBase {
           tagXmlns: carbonsXmlns,
           callback: _onMessageSent,
           priority: -98,
-        )
+        ),
       ];
 
   @override
@@ -124,7 +124,7 @@ class CarbonsManager extends XmppManagerBase {
             XMLNode.xmlns(
               tag: 'enable',
               xmlns: carbonsXmlns,
-            )
+            ),
           ],
         ),
       ),
@@ -154,7 +154,7 @@ class CarbonsManager extends XmppManagerBase {
             XMLNode.xmlns(
               tag: 'disable',
               xmlns: carbonsXmlns,
-            )
+            ),
           ],
         ),
       ),

packages/moxxmpp/lib/src/xeps/xep_0308.dart

@@ -40,7 +40,7 @@ class LastMessageCorrectionManager extends XmppManagerBase {
           callback: _onMessage,
           // Before the message handler
           priority: -99,
-        )
+        ),
       ];
 
   @override

packages/moxxmpp/lib/src/xeps/xep_0333.dart

@@ -100,7 +100,7 @@ class ChatMarkerManager extends XmppManagerBase {
           callback: _onMessage,
           // Before the message handler
           priority: -99,
-        )
+        ),
       ];
 
   @override

packages/moxxmpp/lib/src/xeps/xep_0352.dart

@@ -1,10 +1,10 @@
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/managers/base.dart';
 import 'package:moxxmpp/src/managers/namespaces.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/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 import 'package:moxxmpp/src/xeps/xep_0386.dart';
 
 class CSIActiveNonza extends XMLNode {

packages/moxxmpp/lib/src/xeps/xep_0359.dart

@@ -81,7 +81,7 @@ class StableIdManager extends XmppManagerBase {
           callback: _onMessage,
           // Before the MessageManager
           priority: -99,
-        )
+        ),
       ];
 
   @override
@@ -127,7 +127,13 @@ class StableIdManager extends XmppManagerBase {
     TypedMap<StanzaHandlerExtension> extensions,
   ) {
     final data = extensions.get<StableIdData>();
-    return data != null ? data.toXML() : [];
+    if (data?.originId != null) {
+      return [
+        data!.toOriginIdElement(),
+      ];
+    }
+
+    return [];
   }
 
   @override

packages/moxxmpp/lib/src/xeps/xep_0363/xep_0363.dart

@@ -1,3 +1,4 @@
+import 'package:collection/collection.dart';
 import 'package:meta/meta.dart';
 import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/events.dart';
@@ -7,7 +8,6 @@ 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/types/result.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';
@@ -58,10 +58,10 @@ class HttpFileUploadManager extends XmppManagerBase {
   /// Returns whether the entity provided an identity that tells us that we can ask it
   /// for an HTTP upload slot.
   bool _containsFileUploadIdentity(DiscoInfo info) {
-    return listContains(
+    return info.identities.firstWhereOrNull(
-      info.identities,
           (Identity id) => id.category == 'store' && id.type == 'file',
-    );
+        ) !=
+        null;
   }
 
   /// Extract the maximum filesize in octets from the disco response. Returns null
@@ -161,9 +161,9 @@ class HttpFileUploadManager extends XmppManagerBase {
               attributes: {
                 'filename': filename,
                 'size': filesize.toString(),
-                ...contentType != null ? {'content-type': contentType} : {}
+                if (contentType != null) 'content-type': contentType,
               },
-            )
+            ),
           ],
         ),
       ),

packages/moxxmpp/lib/src/xeps/xep_0384/errors.dart

@@ -2,10 +2,14 @@ abstract class OmemoError {}
 
 class UnknownOmemoError extends OmemoError {}
 
-class InvalidAffixElementsException with Exception {}
+class InvalidAffixElementsException implements Exception {}
+
+/// Internal exception that is returned when the device list cannot be
+/// fetched because the returned list is empty.
+class EmptyDeviceListException implements OmemoError {}
 
 class OmemoNotSupportedForContactException extends OmemoError {}
 
-class EncryptionFailedException with Exception {}
+class EncryptionFailedException implements Exception {}
 
-class InvalidEnvelopePayloadException with Exception {}
+class InvalidEnvelopePayloadException implements Exception {}

packages/moxxmpp/lib/src/xeps/xep_0384/types.dart

@@ -1,3 +1,4 @@
+import 'package:moxxmpp/src/managers/data.dart';
 import 'package:omemo_dart/omemo_dart.dart';
 
 /// A simple wrapper class for defining elements that should not be encrypted.
@@ -13,9 +14,16 @@ class DoNotEncrypt {
 
 /// An encryption error caused by OMEMO.
 class OmemoEncryptionError {
-  const OmemoEncryptionError(this.jids, this.devices);
+  const OmemoEncryptionError(this.deviceEncryptionErrors);
 
-  /// See omemo_dart's EncryptionResult for info on these fields.
+  /// See omemo_dart's EncryptionResult for info on this field.
-  final Map<String, OmemoException> jids;
+  final Map<String, List<EncryptToJidError>> deviceEncryptionErrors;
-  final Map<RatchetMapKey, OmemoException> devices;
+}
+
+class OmemoData extends StanzaHandlerExtension {
+  OmemoData(this.newRatchets, this.replacedRatchets);
+
+  final Map<String, List<int>> newRatchets;
+
+  final Map<String, List<int>> replacedRatchets;
 }

packages/moxxmpp/lib/src/xeps/xep_0384/xep_0384.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 import 'dart:convert';
 import 'package:meta/meta.dart';
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/base.dart';
@@ -10,13 +11,11 @@ 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/types/result.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_0060/errors.dart';
 import 'package:moxxmpp/src/xeps/xep_0060/xep_0060.dart';
-import 'package:moxxmpp/src/xeps/xep_0203.dart';
 import 'package:moxxmpp/src/xeps/xep_0280.dart';
 import 'package:moxxmpp/src/xeps/xep_0334.dart';
 import 'package:moxxmpp/src/xeps/xep_0380.dart';
@@ -24,9 +23,21 @@ import 'package:moxxmpp/src/xeps/xep_0384/crypto.dart';
 import 'package:moxxmpp/src/xeps/xep_0384/errors.dart';
 import 'package:moxxmpp/src/xeps/xep_0384/helpers.dart';
 import 'package:moxxmpp/src/xeps/xep_0384/types.dart';
-import 'package:omemo_dart/omemo_dart.dart';
+import 'package:omemo_dart/omemo_dart.dart' as omemo;
 import 'package:xml/xml.dart';
 
+/// A callback that is executed whenever we need to acquire the OmemoManager backing
+/// the manager.
+typedef GetOmemoManagerCallback = Future<omemo.OmemoManager> Function();
+
+/// A callback for figuring out whether a stanza should be encrypted or not. Note that
+/// returning true here does not necessarily mean that a stanza gets encrypted because
+/// handlers can indicate that a stanza should not be encrypted, e.g. PubSub.
+typedef ShouldEncryptStanzaCallback = Future<bool> Function(
+  JID toJid,
+  Stanza stanza,
+);
+
 const _doNotEncryptList = [
   // XEP-0033
   DoNotEncrypt('addresses', extendedAddressingXmlns),
@@ -43,8 +54,15 @@ const _doNotEncryptList = [
   DoNotEncrypt('stanza-id', stableIdXmlns),
 ];
 
-abstract class BaseOmemoManager extends XmppManagerBase {
+class OmemoManager extends XmppManagerBase {
-  BaseOmemoManager() : super(omemoManager);
+  OmemoManager(this._getOmemoManager, this._shouldEncryptStanza)
+      : super(omemoManager);
+
+  /// Callback for getting the [omemo.OmemoManager].
+  final GetOmemoManagerCallback _getOmemoManager;
+
+  /// Callback for checking whether a stanza should be encrypted or not.
+  final ShouldEncryptStanzaCallback _shouldEncryptStanza;
 
   // TODO(Unknown): Technically, this is not always true
   @override
@@ -113,22 +131,19 @@ abstract class BaseOmemoManager extends XmppManagerBase {
       }
 
       // Tell the OmemoManager
-      (await getOmemoManager()).onDeviceListUpdate(jid.toString(), ids);
+      await (await _getOmemoManager()).onDeviceListUpdate(jid.toString(), ids);
 
       // Generate an event
       getAttributes().sendEvent(OmemoDeviceListUpdatedEvent(jid, ids));
     }
   }
 
-  @visibleForOverriding
+  /// Wrapper around using getSessionManager and then calling getDeviceId on it.
-  Future<OmemoManager> getOmemoManager();
+  Future<int> _getDeviceId() async => (await _getOmemoManager()).getDeviceId();
 
   /// Wrapper around using getSessionManager and then calling getDeviceId on it.
-  Future<int> _getDeviceId() async => (await getOmemoManager()).getDeviceId();
+  Future<omemo.OmemoBundle> _getDeviceBundle() async {
-
+    final om = await _getOmemoManager();
-  /// Wrapper around using getSessionManager and then calling getDeviceId on it.
-  Future<OmemoBundle> _getDeviceBundle() async {
-    final om = await getOmemoManager();
     final device = await om.getDevice();
     return device.toBundle();
   }
@@ -199,53 +214,45 @@ abstract class BaseOmemoManager extends XmppManagerBase {
   }
 
   XMLNode _buildEncryptedElement(
-    EncryptionResult result,
+    omemo.EncryptionResult result,
     String recipientJid,
     int deviceId,
   ) {
     final keyElements = <String, List<XMLNode>>{};
-    for (final key in result.encryptedKeys) {
+    for (final keys in result.encryptedKeys.entries) {
-      final keyElement = XMLNode(
+      keyElements[keys.key] = keys.value
+          .map(
+            (ek) => XMLNode(
               tag: 'key',
-        attributes: <String, String>{
+              attributes: {
-          'rid': '${key.rid}',
+                'rid': ek.rid.toString(),
-          'kex': key.kex ? 'true' : 'false',
+                if (ek.kex) 'kex': 'true',
               },
-        text: key.value,
+              text: ek.value,
-      );
+            ),
-
+          )
-      if (keyElements.containsKey(key.jid)) {
+          .toList();
-        keyElements[key.jid]!.add(keyElement);
-      } else {
-        keyElements[key.jid] = [keyElement];
-      }
     }
 
     final keysElements = keyElements.entries.map((entry) {
       return XMLNode(
         tag: 'keys',
-        attributes: <String, String>{
+        attributes: {
           'jid': entry.key,
         },
         children: entry.value,
       );
     }).toList();
 
-    var payloadElement = <XMLNode>[];
-    if (result.ciphertext != null) {
-      payloadElement = [
-        XMLNode(
-          tag: 'payload',
-          text: base64.encode(result.ciphertext!),
-        ),
-      ];
-    }
-
     return XMLNode.xmlns(
       tag: 'encrypted',
       xmlns: omemoXmlns,
       children: [
-        ...payloadElement,
+        if (result.ciphertext != null)
+          XMLNode(
+            tag: 'payload',
+            text: base64Encode(result.ciphertext!),
+          ),
         XMLNode(
           tag: 'header',
           attributes: <String, String>{
@@ -259,7 +266,7 @@ abstract class BaseOmemoManager extends XmppManagerBase {
 
   /// For usage with omemo_dart's OmemoManager.
   Future<void> sendEmptyMessageImpl(
-    EncryptionResult result,
+    omemo.EncryptionResult result,
     String toJid,
   ) async {
     await getAttributes().sendStanza(
@@ -288,7 +295,7 @@ abstract class BaseOmemoManager extends XmppManagerBase {
 
   /// Send a heartbeat message to [jid].
   Future<void> sendOmemoHeartbeat(String jid) async {
-    final om = await getOmemoManager();
+    final om = await _getOmemoManager();
     await om.sendOmemoHeartbeat(jid);
   }
 
@@ -301,17 +308,22 @@ abstract class BaseOmemoManager extends XmppManagerBase {
   }
 
   /// For usage with omemo_dart's OmemoManager
-  Future<OmemoBundle?> fetchDeviceBundle(String jid, int id) async {
+  Future<omemo.OmemoBundle?> fetchDeviceBundle(String jid, int id) async {
     final result = await retrieveDeviceBundle(JID.fromString(jid), id);
     if (result.isType<OmemoError>()) return null;
 
-    return result.get<OmemoBundle>();
+    return result.get<omemo.OmemoBundle>();
   }
 
   Future<StanzaHandlerData> _onOutgoingStanza(
     Stanza stanza,
     StanzaHandlerData state,
   ) async {
+    if (!state.shouldEncrypt) {
+      logger.finest('Not encrypting since state.shouldEncrypt is false');
+      return state;
+    }
+
     if (state.encrypted) {
       logger.finest('Not encrypting since state.encrypted is true');
       return state;
@@ -324,7 +336,7 @@ abstract class BaseOmemoManager extends XmppManagerBase {
     }
 
     final toJid = JID.fromString(stanza.to!).toBare();
-    final shouldEncryptResult = await shouldEncryptStanza(toJid, stanza);
+    final shouldEncryptResult = await _shouldEncryptStanza(toJid, stanza);
     if (!shouldEncryptResult && !state.forceEncryption) {
       logger.finest(
         'Not encrypting stanza for $toJid: Both shouldEncryptStanza and forceEncryption are false.',
@@ -351,29 +363,29 @@ abstract class BaseOmemoManager extends XmppManagerBase {
             .getManagerById<CarbonsManager>(carbonsManager)
             ?.isEnabled ??
         false;
-    final om = await getOmemoManager();
+    final om = await _getOmemoManager();
-    final result = await om.onOutgoingStanza(
+    final encryptToJids = [
-      OmemoOutgoingStanza(
-        [
       toJid.toString(),
       if (carbonsEnabled) getAttributes().getFullJID().toBare().toString(),
-        ],
+    ];
+    final result = await om.onOutgoingStanza(
+      omemo.OmemoOutgoingStanza(
+        encryptToJids,
         _buildEnvelope(toEncrypt, toJid.toString()),
       ),
     );
     logger.finest('Encryption done');
 
-    if (!result.isSuccess(2)) {
+    if (!result.canSend) {
       return state
         ..cancel = true
         // If we have no device list for toJid, then the contact most likely does not
         // support OMEMO:2
-        ..cancelReason = result.jidEncryptionErrors[toJid.toString()]
+        ..cancelReason = result.deviceEncryptionErrors[toJid.toString()]!.first
-                is NoKeyMaterialAvailableException
+                .error is omemo.NoKeyMaterialAvailableError
             ? OmemoNotSupportedForContactException()
             : UnknownOmemoError()
         ..encryptionError = OmemoEncryptionError(
-          result.jidEncryptionErrors,
           result.deviceEncryptionErrors,
         );
     }
@@ -401,53 +413,45 @@ abstract class BaseOmemoManager extends XmppManagerBase {
       ..encrypted = true;
   }
 
-  /// This function is called whenever a message is to be encrypted. If it returns true,
-  /// then the message will be encrypted. If it returns false, the message won't be
-  /// encrypted.
-  @visibleForOverriding
-  Future<bool> shouldEncryptStanza(JID toJid, Stanza stanza);
-
   Future<StanzaHandlerData> _onIncomingStanza(
     Stanza stanza,
     StanzaHandlerData state,
   ) async {
-    final encrypted = stanza.firstTag('encrypted', xmlns: omemoXmlns);
-    if (encrypted == null) return state;
     if (stanza.from == null) return state;
 
+    final encrypted = stanza.firstTag('encrypted', xmlns: omemoXmlns)!;
     final fromJid = JID.fromString(stanza.from!).toBare();
     final header = encrypted.firstTag('header')!;
-    final payloadElement = encrypted.firstTag('payload');
+    final ourJid = getAttributes().getFullJID();
-    final keys = List<EncryptedKey>.empty(growable: true);
+    final ourJidString = ourJid.toBare().toString();
+    final keys = List<omemo.EncryptedKey>.empty(growable: true);
     for (final keysElement in header.findTags('keys')) {
+      // We only care about our own JID
       final jid = keysElement.attributes['jid']! as String;
-      for (final key in keysElement.findTags('key')) {
+      if (jid != ourJidString) {
-        keys.add(
+        continue;
-          EncryptedKey(
+      }
-            jid,
+
+      keys.addAll(
+        keysElement.findTags('key').map(
+              (key) => omemo.EncryptedKey(
                 int.parse(key.attributes['rid']! as String),
                 key.innerText(),
                 key.attributes['kex'] == 'true',
               ),
+            ),
       );
     }
-    }
 
-    final ourJid = getAttributes().getFullJID();
     final sid = int.parse(header.attributes['sid']! as String);
-
+    final om = await _getOmemoManager();
-    final om = await getOmemoManager();
     final result = await om.onIncomingStanza(
-      OmemoIncomingStanza(
+      omemo.OmemoIncomingStanza(
         fromJid.toString(),
         sid,
-        state.extensions
-                .get<DelayedDeliveryData>()
-                ?.timestamp
-                .millisecondsSinceEpoch ??
-            DateTime.now().millisecondsSinceEpoch,
         keys,
-        payloadElement?.innerText(),
+        encrypted.firstTag('payload')?.innerText(),
+        false,
       ),
     );
 
@@ -464,6 +468,7 @@ abstract class BaseOmemoManager extends XmppManagerBase {
           .toList();
     }
 
+    logger.finest('Got payload: ${result.payload != null}');
     if (result.payload != null) {
       XMLNode envelope;
       try {
@@ -481,6 +486,8 @@ abstract class BaseOmemoManager extends XmppManagerBase {
           // Do not add forbidden elements from the envelope
           envelopeChildren.where(shouldEncryptElement),
         );
+
+        logger.finest('Adding children: ${envelopeChildren.map((c) => c.tag)}');
       } else {
         logger.warning('Invalid envelope element: No <content /> element');
       }
@@ -490,6 +497,15 @@ abstract class BaseOmemoManager extends XmppManagerBase {
       }
     }
 
+    // Ignore heartbeat messages
+    if (stanza.tag == 'message' && encrypted.firstTag('payload') == null) {
+      logger.finest('Received empty OMEMO message. Ending processing early.');
+      return state
+        ..encrypted = true
+        ..skip = true
+        ..done = true;
+    }
+
     return state
       ..encrypted = true
       ..stanza = Stanza(
@@ -500,6 +516,12 @@ abstract class BaseOmemoManager extends XmppManagerBase {
         children: children,
         tag: stanza.tag,
         attributes: Map<String, String>.from(stanza.attributes),
+      )
+      ..extensions.set<OmemoData>(
+        OmemoData(
+          result.newRatchets,
+          result.replacedRatchets,
+        ),
       );
   }
 
@@ -513,7 +535,10 @@ abstract class BaseOmemoManager extends XmppManagerBase {
     final pm = getAttributes().getManagerById<PubSubManager>(pubsubManager)!;
     final result = await pm.getItems(jid.toBare(), omemoDevicesXmlns);
     if (result.isType<PubSubError>()) return Result(UnknownOmemoError());
-    return Result(result.get<List<PubSubItem>>().first.payload);
+
+    final itemList = result.get<List<PubSubItem>>();
+    if (itemList.isEmpty) return Result(EmptyDeviceListException());
+    return Result(itemList.first.payload);
   }
 
   /// Retrieves the OMEMO device list from [jid].
@@ -532,7 +557,7 @@ abstract class BaseOmemoManager extends XmppManagerBase {
   /// Retrieve all device bundles for the JID [jid].
   ///
   /// On success, returns a list of devices. On failure, returns am OmemoError.
-  Future<Result<OmemoError, List<OmemoBundle>>> retrieveDeviceBundles(
+  Future<Result<OmemoError, List<omemo.OmemoBundle>>> retrieveDeviceBundles(
     JID jid,
   ) async {
     // TODO(Unknown): Should we query the device list first?
@@ -553,12 +578,12 @@ abstract class BaseOmemoManager extends XmppManagerBase {
   /// Retrieves a bundle from entity [jid] with the device id [deviceId].
   ///
   /// On success, returns the device bundle. On failure, returns an OmemoError.
-  Future<Result<OmemoError, OmemoBundle>> retrieveDeviceBundle(
+  Future<Result<OmemoError, omemo.OmemoBundle>> retrieveDeviceBundle(
     JID jid,
     int deviceId,
   ) async {
     final pm = getAttributes().getManagerById<PubSubManager>(pubsubManager)!;
-    final bareJid = jid.toBare().toString();
+    final bareJid = jid.toBare();
     final item = await pm.getItem(bareJid, omemoBundlesXmlns, '$deviceId');
     if (item.isType<PubSubError>()) return Result(UnknownOmemoError());
 
@@ -569,7 +594,9 @@ abstract class BaseOmemoManager extends XmppManagerBase {
   /// nodes.
   ///
   /// On success, returns true. On failure, returns an OmemoError.
-  Future<Result<OmemoError, bool>> publishBundle(OmemoBundle bundle) async {
+  Future<Result<OmemoError, bool>> publishBundle(
+    omemo.OmemoBundle bundle,
+  ) async {
     final attrs = getAttributes();
     final pm = attrs.getManagerById<PubSubManager>(pubsubManager)!;
     final bareJid = attrs.getFullJID().toBare();
@@ -636,6 +663,11 @@ abstract class BaseOmemoManager extends XmppManagerBase {
     await pm.subscribe(JID.fromString(jid), omemoDevicesXmlns);
   }
 
+  /// Implementation for publishing our device [device].
+  Future<void> publishDeviceImpl(omemo.OmemoDevice device) async {
+    await publishBundle(await device.toBundle());
+  }
+
   /// Attempts to find out if [jid] supports omemo:2.
   ///
   /// On success, returns whether [jid] has published a device list and device bundles.

packages/moxxmpp/lib/src/xeps/xep_0385.dart

@@ -5,7 +5,7 @@ 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/extensible_file_thumbnails.dart';
+import 'package:moxxmpp/src/xeps/xep_0264.dart';
 
 class StatelessMediaSharingData implements StanzaHandlerExtension {
   const StatelessMediaSharingData({
@@ -20,7 +20,7 @@ class StatelessMediaSharingData implements StanzaHandlerExtension {
   final int size;
   final String description;
   final Map<String, String> hashes; // algo -> hash value
-  final List<Thumbnail> thumbnails;
+  final List<JingleContentThumbnail> thumbnails;
 
   final String url;
 }
@@ -48,16 +48,11 @@ StatelessMediaSharingData parseSIMSElement(XMLNode node) {
     break;
   }
 
-  final thumbnails = List<Thumbnail>.empty(growable: true);
+  // Thumbnails
-  for (final child in file.children) {
+  final thumbnails = List<JingleContentThumbnail>.empty(growable: true);
-    // TODO(Unknown): Handle other thumbnails
+  for (final i
-    if (child.tag == 'file-thumbnail' &&
+      in file.findTags('thumbnail', xmlns: jingleContentThumbnailXmlns)) {
-        child.attributes['xmlns'] == fileThumbnailsXmlns) {
+    thumbnails.add(JingleContentThumbnail.fromXML(i));
-      final thumb = parseFileThumbnailElement(child);
-      if (thumb != null) {
-        thumbnails.add(thumb);
-      }
-    }
   }
 
   return StatelessMediaSharingData(
@@ -87,7 +82,7 @@ class SIMSManager extends XmppManagerBase {
           tagXmlns: referenceXmlns,
           // Before the message handler
           priority: -99,
-        )
+        ),
       ];
 
   @override

packages/moxxmpp/lib/src/xeps/xep_0386.dart

@@ -1,10 +1,10 @@
 import 'package:collection/collection.dart';
 import 'package:meta/meta.dart';
+import 'package:moxlib/moxlib.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/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/negotiators.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/xep_0388.dart';
 

packages/moxxmpp/lib/src/xeps/xep_0388/negotiators.dart

@@ -1,7 +1,7 @@
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/negotiators/negotiator.dart';
 import 'package:moxxmpp/src/rfcs/rfc_6120/sasl/negotiator.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 
 /// A special type of [XmppFeatureNegotiatorBase] that is aware of SASL2.
 abstract class Sasl2FeatureNegotiator extends XmppFeatureNegotiatorBase {

packages/moxxmpp/lib/src/xeps/xep_0388/user_agent.dart

@@ -1,6 +1,6 @@
 import 'package:moxxmpp/src/stringxml.dart';
 
-/// A data class describing the user agent. See https://dyn.eightysoft.de/final/xep-0388.html#initiation
+/// A data class describing the user agent. See https://xmpp.org/extensions/xep-0388.html#initiation.
 class UserAgent {
   const UserAgent({
     this.id,
@@ -24,11 +24,9 @@ class UserAgent {
     );
     return XMLNode(
       tag: 'user-agent',
-      attributes: id != null
+      attributes: {
-          ? {
+        if (id != null) 'id': id,
-              'id': id,
+      },
-            }
-          : {},
       children: [
         if (software != null)
           XMLNode(

packages/moxxmpp/lib/src/xeps/xep_0388/xep_0388.dart

@@ -1,10 +1,10 @@
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/jid.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/rfcs/rfc_6120/sasl/errors.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/errors.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/negotiators.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/user_agent.dart';
@@ -20,12 +20,10 @@ enum Sasl2State {
 /// A negotiator that implements XEP-0388 SASL2. Alone, it does nothing. Has to be
 /// registered with other negotiators that register themselves against this one.
 class Sasl2Negotiator extends XmppFeatureNegotiatorBase {
-  Sasl2Negotiator({
+  Sasl2Negotiator() : super(100, false, sasl2Xmlns, sasl2Negotiator);
-    this.userAgent,
-  }) : super(100, false, sasl2Xmlns, sasl2Negotiator);
 
   /// The user agent data that will be sent to the server when authenticating.
-  final UserAgent? userAgent;
+  UserAgent? userAgent;
 
   /// List of callbacks that are registered against us. Will be called once we get
   /// SASL2 features.

packages/moxxmpp/lib/src/xeps/xep_0421.dart

@@ -0,0 +1,61 @@
+import 'dart:async';
+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/message.dart';
+import 'package:moxxmpp/src/namespaces.dart';
+import 'package:moxxmpp/src/stanza.dart';
+import 'package:moxxmpp/src/stringxml.dart';
+
+/// Representation of a <occupant-id /> element.
+class OccupantIdData implements StanzaHandlerExtension {
+  const OccupantIdData(
+    this.id,
+  );
+
+  /// The unique occupant id.
+  final String id;
+
+  XMLNode toXML() {
+    return XMLNode.xmlns(
+      tag: 'occupant-id',
+      xmlns: occupantIdXmlns,
+      attributes: {
+        'id': id,
+      },
+    );
+  }
+}
+
+class OccupantIdManager extends XmppManagerBase {
+  OccupantIdManager() : super(occupantIdManager);
+
+  @override
+  List<String> getDiscoFeatures() => [
+        occupantIdXmlns,
+      ];
+
+  @override
+  List<StanzaHandler> getIncomingStanzaHandlers() => [
+        StanzaHandler(
+          stanzaTag: 'message',
+          tagName: 'occupant-id',
+          tagXmlns: occupantIdXmlns,
+          callback: _onMessage,
+          // Before the MessageManager
+          priority: MessageManager.messageHandlerPriority + 1,
+        ),
+      ];
+
+  @override
+  Future<bool> isSupported() async => true;
+
+  Future<StanzaHandlerData> _onMessage(
+    Stanza stanza,
+    StanzaHandlerData state,
+  ) async {
+    return state
+      ..extensions.set(OccupantIdData(stanza.attributes['id']! as String));
+  }
+}

packages/moxxmpp/lib/src/xeps/xep_0424.dart

@@ -31,7 +31,7 @@ class MessageRetractionManager extends XmppManagerBase {
           callback: _onMessage,
           // Before the MessageManager
           priority: -99,
-        )
+        ),
       ];
 
   @override

packages/moxxmpp/lib/src/xeps/xep_0446.dart

@@ -1,6 +1,6 @@
 import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/xeps/staging/extensible_file_thumbnails.dart';
+import 'package:moxxmpp/src/xeps/xep_0264.dart';
 import 'package:moxxmpp/src/xeps/xep_0300.dart';
 
 class FileMetadataData {
@@ -39,12 +39,10 @@ class FileMetadataData {
     }
 
     // Thumbnails
-    final thumbnails = List<Thumbnail>.empty(growable: true);
+    final thumbnails = List<JingleContentThumbnail>.empty(growable: true);
-    for (final i in node.findTags('file-thumbnail')) {
+    for (final i
-      final thumbnail = parseFileThumbnailElement(i);
+        in node.findTags('thumbnail', xmlns: jingleContentThumbnailXmlns)) {
-      if (thumbnail != null) {
+      thumbnails.add(JingleContentThumbnail.fromXML(i));
-        thumbnails.add(thumbnail);
-      }
     }
 
     // Length and height
@@ -75,7 +73,7 @@ class FileMetadataData {
   final String? mediaType;
   final int? width;
   final int? height;
-  final List<Thumbnail> thumbnails;
+  final List<JingleContentThumbnail> thumbnails;
   final String? desc;
   final Map<HashFunction, String> hashes;
   final int? length;
@@ -119,7 +117,7 @@ class FileMetadataData {
 
     for (final thumbnail in thumbnails) {
       node.addChild(
-        constructFileThumbnailElement(thumbnail),
+        thumbnail.toXML(),
       );
     }
 

packages/moxxmpp/lib/src/xeps/xep_0447.dart

@@ -1,4 +1,4 @@
-import 'package:moxlib/moxlib.dart';
+import 'package:collection/collection.dart';
 import 'package:moxxmpp/src/managers/base.dart';
 import 'package:moxxmpp/src/managers/data.dart';
 import 'package:moxxmpp/src/managers/handlers.dart';
@@ -114,8 +114,7 @@ class StatelessFileSharingData implements StanzaHandlerExtension {
   }
 
   StatelessFileSharingUrlSource? getFirstUrlSource() {
-    return firstWhereOrNull(
+    return sources.firstWhereOrNull(
-      sources,
       (StatelessFileSharingSource source) =>
           source is StatelessFileSharingUrlSource,
     ) as StatelessFileSharingUrlSource?;
@@ -134,7 +133,7 @@ class SFSManager extends XmppManagerBase {
           callback: _onMessage,
           // Before the message handler
           priority: -98,
-        )
+        ),
       ];
 
   @override
@@ -151,14 +150,17 @@ class SFSManager extends XmppManagerBase {
     // TODO(Unknown): Consider all sources?
     final source = data.sources.first;
     OOBData? oob;
+    MessageBodyData? body;
     if (source is StatelessFileSharingUrlSource && data.includeOOBFallback) {
       // SFS recommends OOB as a fallback
       oob = OOBData(source.url, null);
+      body = MessageBodyData(source.url);
     }
 
     return [
       data.toXML(),
       if (oob != null) oob.toXML(),
+      if (body != null) body.toXML(),
     ];
   }
 

packages/moxxmpp/lib/src/xeps/xep_0448.dart

@@ -1,5 +1,5 @@
 import 'dart:convert';
-import 'package:moxlib/moxlib.dart';
+import 'package:collection/collection.dart';
 import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/stringxml.dart';
 import 'package:moxxmpp/src/xeps/xep_0300.dart';
@@ -54,8 +54,7 @@ class StatelessFileSharingEncryptedSource extends StatelessFileSharingSource {
     final sources = element.firstTag('sources', xmlns: sfsXmlns)!.children;
 
     // Find the first URL source
-    final source = firstWhereOrNull(
+    final source = sources.firstWhereOrNull(
-      sources,
       (XMLNode child) =>
           child.tag == 'url-data' && child.attributes['xmlns'] == urlDataXmlns,
     )!;

packages/moxxmpp/lib/src/xeps/xep_0449.dart

@@ -1,4 +1,5 @@
 import 'dart:convert';
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/base.dart';
 import 'package:moxxmpp/src/managers/data.dart';
@@ -9,7 +10,6 @@ import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/rfcs/rfc_4790.dart';
 import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 import 'package:moxxmpp/src/util/typed_map.dart';
 import 'package:moxxmpp/src/xeps/xep_0060/errors.dart';
 import 'package:moxxmpp/src/xeps/xep_0060/xep_0060.dart';
@@ -344,7 +344,7 @@ class StickersManager extends XmppManagerBase {
   ) async {
     final pm = getAttributes().getManagerById<PubSubManager>(pubsubManager)!;
     final stickerPackDataRaw = await pm.getItem(
-      jid.toBare().toString(),
+      jid.toBare(),
       stickersXmlns,
       id,
     );

packages/moxxmpp/lib/src/xeps/xep_0461.dart

@@ -1,4 +1,4 @@
-import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:meta/meta.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/base.dart';
 import 'package:moxxmpp/src/managers/data.dart';
@@ -96,7 +96,7 @@ class MessageRepliesManager extends XmppManagerBase {
           callback: _onMessage,
           // Before the message handler
           priority: -99,
-        )
+        ),
       ];
 
   @override
@@ -107,8 +107,10 @@ class MessageRepliesManager extends XmppManagerBase {
     TypedMap<StanzaHandlerExtension> extensions,
   ) {
     final data = extensions.get<ReplyData>();
-    return data != null
+    if (data == null) {
-        ? [
+      return [];
+    }
+    return [
       XMLNode.xmlns(
         tag: 'reply',
         xmlns: replyXmlns,
@@ -127,7 +129,7 @@ class MessageRepliesManager extends XmppManagerBase {
       if (data.body != null)
         XMLNode.xmlns(
           tag: 'fallback',
-                xmlns: fallbackXmlns,
+          xmlns: fallbackIndicationXmlns,
           attributes: {'for': replyXmlns},
           children: [
             XMLNode(
@@ -139,8 +141,7 @@ class MessageRepliesManager extends XmppManagerBase {
             ),
           ],
         ),
-          ]
+    ];
-        : [];
   }
 
   Future<StanzaHandlerData> _onMessage(
@@ -154,7 +155,8 @@ class MessageRepliesManager extends XmppManagerBase {
     int? end;
 
     // TODO(Unknown): Maybe extend firstTag to also look for attributes
-    final fallback = stanza.firstTag('fallback', xmlns: fallbackXmlns);
+    final fallback =
+        stanza.firstTag('fallback', xmlns: fallbackIndicationXmlns);
     if (fallback != null) {
       final body = fallback.firstTag('body')!;
       start = int.parse(body.attributes['start']! as String);

packages/moxxmpp/lib/src/xeps/xep_0484.dart

@@ -1,11 +1,11 @@
 import 'package:collection/collection.dart';
 import 'package:logging/logging.dart';
+import 'package:moxlib/moxlib.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/stringxml.dart';
-import 'package:moxxmpp/src/types/result.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/negotiators.dart';
 import 'package:moxxmpp/src/xeps/xep_0388/xep_0388.dart';
 
@@ -60,7 +60,7 @@ class FASTSaslNegotiator extends Sasl2AuthenticationNegotiator {
   final Logger _log = Logger('FASTSaslNegotiator');
 
   /// The token, if non-null, to use for authentication.
-  FASTToken? fastToken;
+  String? fastToken;
 
   @override
   bool matchesFeature(List<XMLNode> features) {
@@ -100,11 +100,12 @@ class FASTSaslNegotiator extends Sasl2AuthenticationNegotiator {
 
   @override
   Future<Result<bool, NegotiatorError>> onSasl2Success(XMLNode response) async {
-    final token = response.firstTag('token', xmlns: fastXmlns);
+    final tokenElement = response.firstTag('token', xmlns: fastXmlns);
-    if (token != null) {
+    if (tokenElement != null) {
-      fastToken = FASTToken.fromXml(token);
+      final token = FASTToken.fromXml(tokenElement);
+      fastToken = token.token;
       await attributes.sendEvent(
-        NewFASTTokenReceivedEvent(fastToken!),
+        NewFASTTokenReceivedEvent(token),
       );
     }
 
@@ -155,7 +156,7 @@ class FASTSaslNegotiator extends Sasl2AuthenticationNegotiator {
 
   @override
   Future<String> getRawStep(String input) async {
-    return fastToken!.token;
+    return fastToken!;
   }
 
   @override

packages/moxxmpp/moxxmpp.doap

@@ -1,29 +1,45 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'
-         xmlns='http://usefulinc.com/ns/doap#'
+         xmlns="http://usefulinc.com/ns/doap#"
-	 xmlns:foaf='http://xmlns.com/foaf/0.1/'
+         xmlns:foaf="http://xmlns.com/foaf/0.1/"
-	 xmlns:xmpp='https://linkmauve.fr/ns/xmpp-doap#'>
+         xmlns:xmpp="https://linkmauve.fr/ns/xmpp-doap#"
-  <Project xml:lang='en'>
+         xmlns:schema="https://schema.org/">
+  <Project xml:lang="en">
     <name>moxxmpp</name>
     <created>2021-12-26</created>
-    <homepage rdf:resource='https://codeberg.org/moxxy/moxxmpp'/>
+    <homepage rdf:resource="https://codeberg.org/moxxy/moxxmpp"/>
     <os>Linux</os>
     <os>Windows</os>
     <os>macOS</os>
     <os>Android</os>
     <os>iOS</os>
-
-    <programming-language>Dart</programming-language>
-
     <maintainer>
       <foaf:Person>
         <foaf:name>Alexander "Polynomdivision"</foaf:name>
-	<foaf:homepage rdf:resource="https://blog.polynom.me" />
+        <foaf:homepage rdf:resource="https://polynom.me"/>
       </foaf:Person>
     </maintainer>
 
-    <implements rdf:resource="https://xmpp.org/rfcs/rfc6120.html" />
+    <!-- Channel list -->
+    <developer-forum rdf:resource='xmpp:dev@muc.moxxy.org?join'/>
+    <support-forum rdf:resource='xmpp:dev@muc.moxxy.org?join'/>
 
+    <!-- Repository information -->
+    <programming-language>Dart</programming-language>
+    <bug-database rdf:resource="https://codeberg.org/moxxy/moxxmpp/issues" />
+    <license rdf:resource="https://codeberg.org/moxxy/moxxmpp/src/branch/master/packages/moxxmpp/LICENSE" />
+    <repository>
+      <GitRepository>
+        <browse rdf:resource="https://codeberg.org/moxxy/moxxmpp" />
+        <location rdf:resource="https://codeberg.org/moxxy/moxxmpp.git" />
+      </GitRepository>
+    </repository>
+
+    <!-- RFC list -->
+    <implements rdf:resource="https://xmpp.org/rfcs/rfc6120.html"/>
+    <implements rdf:resource="https://xmpp.org/rfcs/rfc6121.html"/>
+
+    <!-- Standard XEP list -->
     <implements>
       <xmpp:SupportedXep>
         <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0004.html"/>
@@ -64,7 +80,6 @@
       <xmpp:SupportedXep>
         <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0084.html"/>
         <xmpp:status>partial</xmpp:status>
-	<xmpp:note xml:lang="en">Receiving data</xmpp:note>
         <xmpp:version>1.1.4</xmpp:version>
       </xmpp:SupportedXep>
     </implements>
@@ -101,7 +116,6 @@
         <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0191.html"/>
         <xmpp:status>complete</xmpp:status>
         <xmpp:version>1.3.0</xmpp:version>
-	<xmpp:note xml:lang="en">Not plugged into the UI</xmpp:note>
       </xmpp:SupportedXep>
     </implements>
     <implements>
@@ -111,6 +125,13 @@
         <xmpp:version>1.6</xmpp:version>
       </xmpp:SupportedXep>
     </implements>
+    <implements>
+      <xmpp:SupportedXep>
+        <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0264.html"/>
+        <xmpp:status>complete</xmpp:status>
+        <xmpp:version>0.4.1</xmpp:version>
+      </xmpp:SupportedXep>
+    </implements>
     <implements>
       <xmpp:SupportedXep>
         <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0280.html"/>
@@ -145,7 +166,6 @@
       <xmpp:SupportedXep>
         <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0333.html"/>
         <xmpp:status>partial</xmpp:status>
-	<xmpp:note xml:lang="en">Read-only support</xmpp:note>
         <xmpp:version>0.4</xmpp:version>
       </xmpp:SupportedXep>
     </implements>
@@ -153,7 +173,6 @@
       <xmpp:SupportedXep>
         <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0334.html"/>
         <xmpp:status>complete</xmpp:status>
-	<xmpp:note xml:lang="en">Write-only support</xmpp:note>
         <xmpp:version>0.3.0</xmpp:version>
       </xmpp:SupportedXep>
     </implements>
@@ -174,9 +193,8 @@
     <implements>
       <xmpp:SupportedXep>
         <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0363.html"/>
-	<xmpp:status>partial</xmpp:status>
+        <xmpp:status>complete</xmpp:status>
         <xmpp:version>1.1.0</xmpp:version>
-	<xmpp:note xml:lang="en">Only handles the success case; not accessible via the App</xmpp:note>
       </xmpp:SupportedXep>
     </implements>
     <implements>
@@ -258,12 +276,14 @@
     </implements>
     <implements>
       <xmpp:SupportedXep>
-	<xmpp:xep rdf:resource="https://codeberg.org/moxxy/custom-xeps/src/branch/master/xep-xxxx-extensible-file-thumbnails.md" />
+ 	      <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0484.html" />
 	      <xmpp:status>partial</xmpp:status>
-	<xmpp:version>0.2.1</xmpp:version>
+	      <xmpp:version>0.1.1</xmpp:version>
-	<xmpp:note xml:lang="en">Only Blurhash is implemented</xmpp:note>
+	      <xmpp:note xml:lang="en">Invalidation is never requested</xmpp:note>
       </xmpp:SupportedXep>
     </implements>
+
+    <!-- Non-Standard (Proto) XEPs -->
     <implements>
       <xmpp:SupportedXep>
         <xmpp:xep rdf:resource="https://codeberg.org/moxxy/custom-xeps/src/branch/master/xep-xxxx-file-upload-notification.md"/>

packages/moxxmpp/pubspec.yaml

@@ -5,30 +5,28 @@ homepage: https://codeberg.org/moxxy/moxxmpp
 publish_to: https://git.polynom.me/api/packages/Moxxy/pub
 
 environment:
-  sdk: '>=2.17.5 <3.0.0'
+  sdk: ">=3.0.0 <4.0.0"
 
 dependencies:
-  collection: ^1.16.0
+  collection: ^1.18.0
-  cryptography: ^2.0.5
+  cryptography: ^2.7.0
-  freezed: ^2.1.0+1
-  freezed_annotation: ^2.1.0
   hex: ^0.2.0
-  json_serializable: ^6.3.1
+  json_serializable: ^6.8.0
-  logging: ^1.0.2
+  logging: ^1.2.0
-  meta: ^1.7.0
+  meta: ^1.15.0
   moxlib:
     hosted: https://git.polynom.me/api/packages/Moxxy/pub
-   version: ^0.1.5
+    version: ^0.2.0
   omemo_dart:
     hosted: https://git.polynom.me/api/packages/PapaTutuWawa/pub
-    version: ^0.4.3
+    version: ^0.6.0
   random_string: ^2.3.1
-  saslprep: ^1.0.2
+  saslprep: ^1.0.3
-  synchronized: ^3.0.0+2
+  synchronized: ^3.3.0+3
-  uuid: ^3.0.5
+  uuid: ^3.0.7
-  xml: ^6.1.0
+  xml: ^6.5.0
 
 dev_dependencies:
-  build_runner: ^2.1.11
+  build_runner: ^2.4.12
-  test: ^1.16.0
+  test: ^1.25.8
-  very_good_analysis: ^3.0.1
+  very_good_analysis: ^6.0.0

packages/moxxmpp/test/async_queue_test.dart

@@ -30,7 +30,6 @@ void main() {
 
     await Future<void>.delayed(const Duration(seconds: 1));
     expect(queue.queue.length, 2);
-    expect(queue.isRunning, false);
   });
 
   test('Test sending', () async {
@@ -58,7 +57,6 @@ void main() {
 
     await Future<void>.delayed(const Duration(seconds: 1));
     expect(queue.queue.length, 0);
-    expect(queue.isRunning, false);
   });
 
   test('Test partial sending and resuming', () async {
@@ -89,12 +87,10 @@ void main() {
 
     await Future<void>.delayed(const Duration(seconds: 1));
     expect(queue.queue.length, 1);
-    expect(queue.isRunning, false);
 
     canRun = true;
     await queue.restart();
     await Future<void>.delayed(const Duration(seconds: 1));
     expect(queue.queue.length, 0);
-    expect(queue.isRunning, false);
   });
 }

packages/moxxmpp/test/awaiter_test.dart

@@ -2,11 +2,12 @@ import 'package:moxxmpp/moxxmpp.dart';
 import 'package:moxxmpp/src/awaiter.dart';
 import 'package:test/test.dart';
 
-void main() {
+const bareJid = 'user4@example.org';
-  const bareJid = JID('moxxmpp', 'server3.example', '');
+String getBareJidCallback() => bareJid;
 
+void main() {
   test('Test awaiting an awaited stanza with a from attribute', () async {
-    final awaiter = StanzaAwaiter();
+    final awaiter = StanzaAwaiter(getBareJidCallback);
 
     // "Send" a stanza
     final future = await awaiter.addPending(
@@ -20,14 +21,12 @@ void main() {
       XMLNode.fromString(
         '<iq from="user3@server.example" id="abc123" type="result" />',
       ),
-      bareJid,
     );
     expect(result1, false);
     final result2 = await awaiter.onData(
       XMLNode.fromString(
         '<iq from="user1@server.example" id="lol" type="result" />',
       ),
-      bareJid,
     );
     expect(result2, false);
 
@@ -37,22 +36,20 @@ void main() {
     );
     final result3 = await awaiter.onData(
       stanza,
-      bareJid,
     );
     expect(result3, true);
     expect(await future, stanza);
   });
 
   test('Test awaiting an awaited stanza without a from attribute', () async {
-    final awaiter = StanzaAwaiter();
+    final awaiter = StanzaAwaiter(getBareJidCallback);
 
     // "Send" a stanza
-    final future = await awaiter.addPending(bareJid.toString(), 'abc123', 'iq');
+    final future = await awaiter.addPending(null, 'abc123', 'iq');
 
     // Receive the wrong answer
     final result1 = await awaiter.onData(
       XMLNode.fromString('<iq id="lol" type="result" />'),
-      bareJid,
     );
     expect(result1, false);
 
@@ -60,23 +57,21 @@ void main() {
     final stanza = XMLNode.fromString('<iq id="abc123" type="result" />');
     final result2 = await awaiter.onData(
       stanza,
-      bareJid,
     );
     expect(result2, true);
     expect(await future, stanza);
   });
 
   test('Test awaiting a stanza that was already awaited', () async {
-    final awaiter = StanzaAwaiter();
+    final awaiter = StanzaAwaiter(getBareJidCallback);
 
     // "Send" a stanza
-    final future = await awaiter.addPending(bareJid.toString(), 'abc123', 'iq');
+    final future = await awaiter.addPending(null, 'abc123', 'iq');
 
     // Receive the correct answer
     final stanza = XMLNode.fromString('<iq id="abc123" type="result" />');
     final result1 = await awaiter.onData(
       stanza,
-      bareJid,
     );
     expect(result1, true);
     expect(await future, stanza);
@@ -84,31 +79,55 @@ void main() {
     // Receive it again
     final result2 = await awaiter.onData(
       stanza,
-      bareJid,
     );
     expect(result2, false);
   });
 
   test('Test ignoring a stanza that has the wrong tag', () async {
-    final awaiter = StanzaAwaiter();
+    final awaiter = StanzaAwaiter(getBareJidCallback);
 
     // "Send" a stanza
-    final future = await awaiter.addPending(bareJid.toString(), 'abc123', 'iq');
+    final future = await awaiter.addPending(null, 'abc123', 'iq');
 
     // Receive the wrong answer
     final stanza = XMLNode.fromString('<iq id="abc123" type="result" />');
     final result1 = await awaiter.onData(
       XMLNode.fromString('<message id="abc123" type="result" />'),
-      bareJid,
     );
     expect(result1, false);
 
     // Receive the correct answer
     final result2 = await awaiter.onData(
       stanza,
-      bareJid,
     );
     expect(result2, true);
     expect(await future, stanza);
   });
+
+  test('Sending a stanza to our bare JID', () async {
+    final awaiter = StanzaAwaiter(getBareJidCallback);
+
+    // "Send" a stanza
+    final future = await awaiter.addPending(bareJid, 'abc123', 'iq');
+
+    // Receive the response.
+    final stanza = XMLNode.fromString('<iq id="abc123" type="result" />');
+    await awaiter.onData(stanza);
+    expect(await future, stanza);
+  });
+
+  test(
+      'Sending a stanza to our bare JID and receiving stanza with a from attribute',
+      () async {
+    final awaiter = StanzaAwaiter(getBareJidCallback);
+
+    // "Send" a stanza
+    final future = await awaiter.addPending(bareJid, 'abc123', 'iq');
+
+    // Receive the response.
+    final stanza =
+        XMLNode.fromString('<iq from="$bareJid" id="abc123" type="result" />');
+    await awaiter.onData(stanza);
+    expect(await future, stanza);
+  });
 }

packages/moxxmpp/test/helpers/xmpp.dart

@@ -58,7 +58,7 @@ List<ExpectationBase> buildAuthenticatedPlay(ConnectionSettings settings) {
   );
   return [
     StringExpectation(
-      "<stream:stream xmlns='jabber:client' version='1.0' xmlns:stream='http://etherx.jabber.org/streams' to='${settings.jid.domain}' from='${settings.jid.toBare().toString()}' xml:lang='en'>",
+      "<stream:stream xmlns='jabber:client' version='1.0' xmlns:stream='http://etherx.jabber.org/streams' to='${settings.jid.domain}' from='${settings.jid.toBare()}' xml:lang='en'>",
       '''
 <stream:stream
     xmlns="jabber:client"
@@ -77,7 +77,7 @@ List<ExpectationBase> buildAuthenticatedPlay(ConnectionSettings settings) {
       '<success xmlns="urn:ietf:params:xml:ns:xmpp-sasl" />',
     ),
     StringExpectation(
-      "<stream:stream xmlns='jabber:client' version='1.0' xmlns:stream='http://etherx.jabber.org/streams' to='${settings.jid.domain}' from='${settings.jid.toBare().toString()}' xml:lang='en'>",
+      "<stream:stream xmlns='jabber:client' version='1.0' xmlns:stream='http://etherx.jabber.org/streams' to='${settings.jid.domain}' from='${settings.jid.toBare()}' xml:lang='en'>",
       '''
 <stream:stream
     xmlns="jabber:client"
@@ -89,6 +89,7 @@ List<ExpectationBase> buildAuthenticatedPlay(ConnectionSettings settings) {
     <bind xmlns="urn:ietf:params:xml:ns:xmpp-bind">
       <required/>
     </bind>
+    <ver xmlns='urn:xmpp:features:rosterver'/>
   </stream:features>
 ''',
     ),

packages/moxxmpp/test/negotiator_test.dart

@@ -1,6 +1,8 @@
+import 'package:moxlib/moxlib.dart';
 import 'package:moxxmpp/moxxmpp.dart';
 import 'package:moxxmpp/src/parser.dart';
 import 'package:test/test.dart';
+
 import 'helpers/logging.dart';
 
 const exampleXmlns1 = 'im:moxxmpp:example1';

packages/moxxmpp/test/roster_test.dart

@@ -0,0 +1,53 @@
+import 'package:moxxmpp/moxxmpp.dart';
+import 'package:test/test.dart';
+import 'helpers/logging.dart';
+import 'helpers/xmpp.dart';
+
+void main() {
+  initLogger();
+
+  test('Test a versioned roster fetch returning an empty iq', () async {
+    final sm = TestingRosterStateManager('ver14', []);
+    final rm = RosterManager(sm);
+    final cs = ConnectionSettings(
+      jid: JID.fromString('user@example.org'),
+      password: 'abc123',
+    );
+    final socket = StubTCPSocket([
+      ...buildAuthenticatedPlay(cs),
+      StanzaExpectation(
+        '<iq xmlns="jabber:client" id="r1h3vzp7" type="get"><query xmlns="jabber:iq:roster" ver="ver14"/></iq>',
+        '<iq xmlns="jabber:client" id="r1h3vzp7" type="result" />',
+        ignoreId: true,
+        adjustId: true,
+      ),
+    ]);
+    final conn = XmppConnection(
+      TestingReconnectionPolicy(),
+      AlwaysConnectedConnectivityManager(),
+      ClientToServerNegotiator(),
+      socket,
+    )..connectionSettings = cs;
+    await conn.registerManagers([
+      rm,
+      PresenceManager(),
+    ]);
+    await conn.registerFeatureNegotiators([
+      SaslPlainNegotiator(),
+      ResourceBindingNegotiator(),
+      RosterFeatureNegotiator(),
+    ]);
+
+    // Connect
+    await conn.connect(
+      shouldReconnect: false,
+      waitUntilLogin: true,
+    );
+
+    // Request the roster
+    final rawResult = await rm.requestRoster();
+    expect(rawResult.isType<RosterRequestResult>(), true);
+    final result = rawResult.get<RosterRequestResult>();
+    expect(result.items.isEmpty, true);
+  });
+}