Merge pull request 'Replace StanzaHandlerData with something more extensible' (#42) from feat/type-map-rework into master

Reviewed-on: https://codeberg.org/moxxy/moxxmpp/pulls/42

.github/FUNDING.yml

@@ -0,0 +1 @@
+ko_fi: papatutuwawa

.gitignore

@@ -10,3 +10,9 @@ build/
 # Omit committing pubspec.lock for library packages; see
 # https://dart.dev/guides/libraries/private-files#pubspeclock.
 pubspec.lock
+
+# Omit pubspec override files generated by melos
+**/pubspec_overrides.yaml
+
+# Flake results
+result

.gitlint

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

.woodpecker.yml

@@ -0,0 +1,28 @@
+pipeline:
+  # Check moxxmpp
+  moxxmpp-lint:
+    image: dart:2.18.1
+    commands:
+      - cd packages/moxxmpp
+      - dart pub get
+      - dart analyze --fatal-infos --fatal-warnings
+  moxxmpp-test:
+    image: dart:2.18.1
+    commands:
+      - cd packages/moxxmpp
+      - dart pub get
+      - dart test
+
+  # Check moxxmpp_socket_tcp
+  moxxmpp_socket_tcp-lint:
+    image: dart:2.18.1
+    commands:
+      - cd packages/moxxmpp_socket_tcp
+      - dart pub get
+      - dart analyze --fatal-infos --fatal-warnings
+  # moxxmpp-test:
+  #   image: dart:2.18.1
+  #   commands:
+  #     - cd packages/moxxmpp
+  #     - dart pub get
+  #     - dart test

CONTRIBUTING.md

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

README.md

@@ -3,13 +3,15 @@
 moxxmpp is a XMPP library written purely in Dart for usage in Moxxy.
 
 ## Packages
-### moxxmpp
+### [moxxmpp](./packages/moxxmpp)
 
 This package contains the actual XMPP code that is platform-independent.
 
-### moxxmpp_socket
+Documentation is available [here](https://moxxy.org/developers/docs/moxxmpp/).
 
-`moxxmpp_socket` contains the implementation of the `BaseSocketWrapper` class that
+### [moxxmpp_socket_tcp](./packages/moxxmpp_socket_tcp)
+
+`moxxmpp_socket_tcp` contains the implementation of the `BaseSocketWrapper` class that
 implements the RFC6120 connection algorithm and XEP-0368 direct TLS connections,
 if a DNS implementation is given, and supports StartTLS.
 
@@ -22,6 +24,21 @@ To run the example, make sure that Flutter is correctly set up and working. If y
 the development shell provided by the NixOS Flake, ensure that `ANDROID_HOME` and
 `ANDROID_AVD_HOME` are pointing to the correct directories.
 
+## Examples
+
+This repository contains 2 types of examples:
+
+- `example_flutter`: An example of using moxxmpp using Flutter
+- `examples_dart`: A collection of pure Dart examples for showing different aspects of moxxmpp
+
+For more information, see the respective README files.
+
 ## License
 
 See `./LICENSE`.
+
+## Support
+
+If you like what I do and you want to support me, feel free to donate to me on Ko-Fi.
+
+[<img src="https://codeberg.org/moxxy/moxxyv2/raw/branch/master/assets/repo/kofi.png" height="36" style="height: 36px; border: 0px;"></img>](https://ko-fi.com/papatutuwawa)

analysis_options.yaml

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

example/pubspec_overrides.yaml

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

example_flutter/lib/main.dart

@@ -5,25 +5,28 @@ import 'package:moxxmpp/moxxmpp.dart';
 import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
 
 class ExampleTcpSocketWrapper extends TCPSocketWrapper {
-  ExampleTcpSocketWrapper() : super(false);
+  ExampleTcpSocketWrapper() : super();
 
   @override
   Future<List<MoxSrvRecord>> srvQuery(String domain, bool dnssec) async {
     final records = await MoxdnsPlugin.srvQuery(domain, false);
     return records
-      .map((record) => MoxSrvRecord(
+        .map(
-        record.priority,
+          (record) => MoxSrvRecord(
-        record.weight,
+            record.priority,
-        record.target,
+            record.weight,
-        record.port,
+            record.target,
-      ),)
+            record.port,
-      .toList();
+          ),
+        )
+        .toList();
   }
 }
 
 void main() {
   Logger.root.level = Level.ALL;
   Logger.root.onRecord.listen((record) {
+    // ignore: avoid_print
     print('${record.level.name}: ${record.time}: ${record.message}');
   });
 
@@ -54,22 +57,32 @@ class MyHomePage extends StatefulWidget {
 }
 
 class _MyHomePageState extends State<MyHomePage> {
+  final logger = Logger('MyHomePage');
   final XmppConnection connection = XmppConnection(
-    ExponentialBackoffReconnectionPolicy(),
+    RandomBackoffReconnectionPolicy(1, 60),
-    ExampleTcpSocketWrapper(),
+    AlwaysConnectedConnectivityManager(),
+    ClientToServerNegotiator(),
+    // The below causes the app to crash.
+    //ExampleTcpSocketWrapper(),
+    // In a production app, the below should be false.
+    TCPSocketWrapper(),
   );
   TextEditingController jidController = TextEditingController();
   TextEditingController passwordController = TextEditingController();
+  bool connected = false;
+  bool loading = false;
 
   _MyHomePageState() : super() {
     connection
       ..registerManagers([
         StreamManagementManager(),
-        DiscoManager(),
+        DiscoManager([]),
-        RosterManager(),
+        RosterManager(TestingRosterStateManager("", [])),
-        PingManager(),
+        PingManager(
+          const Duration(minutes: 3),
+        ),
         MessageManager(),
-        PresenceManager('http://moxxmpp.example'),
+        PresenceManager(),
       ])
       ..registerFeatureNegotiators([
         ResourceBindingNegotiator(),
@@ -78,21 +91,44 @@ class _MyHomePageState extends State<MyHomePage> {
         CSINegotiator(),
         RosterFeatureNegotiator(),
         SaslPlainNegotiator(),
+        SaslScramNegotiator(10, '', '', ScramHashType.sha512),
         SaslScramNegotiator(9, '', '', ScramHashType.sha256),
         SaslScramNegotiator(8, '', '', ScramHashType.sha1),
       ]);
   }
 
   Future<void> _buttonPressed() async {
-    connection.setConnectionSettings(
+    if (connected) {
-      ConnectionSettings(
+      await connection.disconnect();
-        jid: JID.fromString(jidController.text),
+      setState(() {
-        password: passwordController.text,
+        connected = false;
-        useDirectTLS: true,
+      });
-        allowPlainAuth: false,
+      return;
-      ),
+    }
+    setState(() {
+      loading = true;
+    });
+    connection.connectionSettings = ConnectionSettings(
+      jid: JID.fromString(jidController.text),
+      password: passwordController.text,
     );
-    await connection.connect();
+    final result = await connection.connect(waitUntilLogin: true);
+    setState(() {
+      connected = result.isType<bool>() && result.get<bool>();
+      loading = false;
+    });
+    if (result.isType<XmppError>()) {
+      logger.severe(result.get<XmppError>());
+      if (context.mounted) {
+        showDialog(
+          context: context,
+          builder: (_) => AlertDialog(
+            title: const Text('Error'),
+            content: Text(result.get<XmppError>().toString()),
+          ),
+        );
+      }
+    }
   }
 
   @override
@@ -100,20 +136,24 @@ class _MyHomePageState extends State<MyHomePage> {
     return Scaffold(
       appBar: AppBar(
         title: Text(widget.title),
+        backgroundColor: connected ? Colors.green : Colors.deepPurple[800],
+        foregroundColor: connected ? Colors.black : Colors.white,
       ),
       body: Center(
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: <Widget>[
             TextField(
+              enabled: !loading,
               controller: jidController,
-              decoration: InputDecoration(
+              decoration: const InputDecoration(
                 labelText: 'JID',
               ),
             ),
             TextField(
+              enabled: !loading,
               controller: passwordController,
-              decoration: InputDecoration(
+              decoration: const InputDecoration(
                 labelText: 'Password',
               ),
               obscureText: true,
@@ -121,10 +161,13 @@ class _MyHomePageState extends State<MyHomePage> {
           ],
         ),
       ),
-      floatingActionButton: FloatingActionButton(
+      floatingActionButton: FloatingActionButton.extended(
         onPressed: _buttonPressed,
+        label: Text(connected ? 'Disconnect' : 'Connect'),
+        backgroundColor: Colors.blue,
+        foregroundColor: Colors.white,
         tooltip: 'Connect',
-        child: const Icon(Icons.add),
+        icon: const Icon(Icons.power),
       ),
     );
   }

example_flutter/pubspec.yaml

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

examples_dart/.gitignore

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

examples_dart/README.md

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

examples_dart/analysis_options.yaml

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

examples_dart/bin/component.dart

@@ -0,0 +1,90 @@
+import 'package:logging/logging.dart';
+import 'package:moxxmpp/moxxmpp.dart';
+import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
+
+class TestingTCPSocketWrapper extends TCPSocketWrapper {
+  @override
+  bool onBadCertificate(dynamic certificate, String domain) {
+    return true;
+  }
+}
+
+class EchoMessageManager extends XmppManagerBase {
+  EchoMessageManager() : super('org.moxxy.example.message');
+
+  @override
+  Future<bool> isSupported() async => true;
+
+  @override
+  List<StanzaHandler> getIncomingStanzaHandlers() => [
+        StanzaHandler(
+          stanzaTag: 'message',
+          callback: _onMessage,
+          priority: -100,
+          xmlns: null,
+        )
+      ];
+
+  Future<StanzaHandlerData> _onMessage(
+    Stanza stanza,
+    StanzaHandlerData state,
+  ) async {
+    final body = stanza.firstTag('body');
+    if (body == null) return state.copyWith(done: true);
+
+    final bodyText = body.innerText();
+
+    await getAttributes().sendStanza(
+      Stanza.message(
+        to: stanza.from,
+        children: [
+          XMLNode(
+            tag: 'body',
+            text: 'Hello, ${stanza.from}! You said "$bodyText"',
+          ),
+        ],
+      ),
+      awaitable: false,
+    );
+
+    return state.copyWith(done: true);
+  }
+}
+
+void main(List<String> arguments) async {
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.listen((record) {
+    // ignore: avoid_print
+    print(
+      '[${record.level.name}] (${record.loggerName}) ${record.time}: ${record.message}',
+    );
+  });
+
+  final conn = XmppConnection(
+    TestingReconnectionPolicy(),
+    AlwaysConnectedConnectivityManager(),
+    ComponentToServerNegotiator(),
+    TestingTCPSocketWrapper(),
+  )..connectionSettings = ConnectionSettings(
+      jid: JID.fromString('component.localhost'),
+      password: 'abc123',
+      host: '127.0.0.1',
+      port: 8888,
+    );
+  await conn.registerManagers([
+    EchoMessageManager(),
+  ]);
+
+  final result = await conn.connect(
+    waitUntilLogin: true,
+    shouldReconnect: false,
+    enableReconnectOnSuccess: false,
+  );
+  if (result.isType<XmppError>()) {
+    print('Failed to connect as component');
+    return;
+  }
+
+  // Just block for some time to test the connection
+  await Future<void>.delayed(const Duration(seconds: 9999));
+}

examples_dart/pubspec.yaml

@@ -0,0 +1,26 @@
+name: example_dart
+description: A sample command-line application.
+version: 1.0.0
+# homepage: https://www.example.com
+
+environment:
+  sdk: '>=2.18.0 <3.0.0'
+
+dependencies:
+  logging: ^1.0.2
+  moxxmpp:
+    hosted: https://git.polynom.me/api/packages/Moxxy/pub
+    version: 0.3.1
+  moxxmpp_socket_tcp:
+    hosted: https://git.polynom.me/api/packages/Moxxy/pub
+    version: 0.3.1
+
+dependency_overrides:
+  moxxmpp:
+    path: ../packages/moxxmpp
+  moxxmpp_socket_tcp:
+    path: ../packages/moxxmpp_socket_tcp
+    
+dev_dependencies:
+  lints: ^2.0.0
+  test: ^1.16.0

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "flake-utils": {
       "locked": {
-        "lastModified": 1667395993,
+        "lastModified": 1678901627,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "narHash": "sha256-U02riOqrKKzwjsxc/400XnElV+UtPUQWpANPlyazjH0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "rev": "93a2b84fc4b70d9e089d029deacc3583435c2ed6",
         "type": "github"
       },
       "original": {
@@ -17,11 +17,27 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1667610399,
+        "lastModified": 1676076353,
-        "narHash": "sha256-XZd0f4ZWAY0QOoUSdiNWj/eFiKb4B9CJPtl9uO9SYY4=",
+        "narHash": "sha256-mdUtE8Tp40cZETwcq5tCwwLqkJVV1ULJQ5GKRtbshag=",
+        "owner": "AtaraxiaSjel",
+        "repo": "nixpkgs",
+        "rev": "5deb99bdccbbb97e7562dee4ba8a3ee3021688e6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "AtaraxiaSjel",
+        "ref": "update/flutter",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1680273054,
+        "narHash": "sha256-Bs6/5LpvYp379qVqGt9mXxxx9GSE789k3oFc+OAL07M=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1dd8696f96db47156e1424a49578fe7dd4ce99a4",
+        "rev": "3364b5b117f65fe1ce65a3cdd5612a078a3b31e3",
         "type": "github"
       },
       "original": {
@@ -34,7 +50,8 @@
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable"
       }
     }
   },

flake.nix

@@ -1,11 +1,12 @@
 {
   description = "moxxmpp";
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "github:AtaraxiaSjel/nixpkgs/update/flutter";
+    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, nixpkgs, flake-utils }: flake-utils.lib.eachDefaultSystem (system: let
+  outputs = { self, nixpkgs, nixpkgs-unstable, flake-utils }: flake-utils.lib.eachDefaultSystem (system: let
     pkgs = import nixpkgs {
       inherit system;
       config = {
@@ -13,6 +14,9 @@
         allowUnfree = true;
       };
     };
+    unstable = import nixpkgs-unstable {
+      inherit system;
+    };
     android = pkgs.androidenv.composeAndroidPackages {
       # TODO: Find a way to pin these
       #toolsVersion = "26.1.1";
@@ -29,15 +33,49 @@
       useGoogleAPIs = false;
       useGoogleTVAddOns = false;
     };
-    pinnedJDK = pkgs.jdk;
+    pinnedJDK = pkgs.jdk17;
+
+    pythonEnv = pkgs.python3.withPackages (ps: with ps; [
+      pyyaml
+      requests
+    ]);
+
+    moxxmppPubCache = import ./nix/pubcache.moxxmpp.nix {
+      inherit (pkgs) fetchzip runCommand;
+    };
   in {
-    devShell = pkgs.mkShell {
+    packages = {
+      moxxmppDartDocs = pkgs.callPackage ./nix/moxxmpp-docs.nix {
+        inherit (moxxmppPubCache) pubCache;
+      };
+    };
+
+    devShell = let
+      prosody-newer-community-modules = unstable.prosody.overrideAttrs (old: {
+        communityModules = pkgs.fetchhg {
+          url = "https://hg.prosody.im/prosody-modules";
+          rev = "e3a3a6c86a9f";
+          sha256 = "sha256-C2x6PCv0sYuj4/SroDOJLsNPzfeNCodYKbMqmNodFrk=";
+        };
+
+        src = pkgs.fetchhg {
+          url = "https://hg.prosody.im/trunk";
+          rev = "8a2f75e38eb2";
+          sha256 = "sha256-zMNp9+wQ/hvUVyxFl76DqCVzQUPP8GkNdstiTDkG8Hw=";
+        };
+      });
+      prosody-sasl2 = prosody-newer-community-modules.override {
+        withCommunityModules = [
+          "sasl2" "sasl2_fast" "sasl2_sm" "sasl2_bind2"
+        ];
+      };
+    in pkgs.mkShell {
       buildInputs = with pkgs; [
-        flutter pinnedJDK android.platform-tools dart # Flutter/Android
+        flutter pinnedJDK android.platform-tools dart # Dart
 	      gitlint # Code hygiene
 	      ripgrep # General utilities 
 
-        # Flutter dependencies for linux desktop
+        # Flutter dependencies for Linux desktop
         atk
         cairo
         clang
@@ -53,6 +91,13 @@
         pkg-config
         xorg.libX11
         xorg.xorgproto
+
+        # For the scripts in ./scripts/
+        pythonEnv
+
+        # For integration testing against a local prosody server
+        prosody-sasl2
+        mkcert
       ];
 
       CPATH = "${pkgs.xorg.libX11.dev}/include:${pkgs.xorg.xorgproto}/include";

integration_tests/.gitignore

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

integration_tests/README.md

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

integration_tests/analysis_options.yaml

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

integration_tests/certs/localhost.crt

@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----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+VR0jBBgwFoAU54aUZ+dytAOBTsYIdGtSnjiig/gwFAYDVR0RBA0wC4IJbG9jYWxo
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+SfgHVfvE/Vxisn9InYrUCVtfRwLDF3HgLyIlm8FVzIyiIANhpe6vJdqjEWTsiL2X
+I6hoDf1xlRgEqUx+Wxl2IFWrg+1SPPGTQzDPImiRlz8d+9ZJ9v48vaV5+aITMvDP
+Gfm/bnNXXd5Gf7nGwL8zFHiwLoYQ5AUYl0IfXYwFAXJ72+LjiRT33IOidVJF0gsQ
+6k9cTsc4lIrt4FOzdchalbF1Eu2prieWoZxz0apG8OuUeAhaB+t8kT6swAkwvkLW
+OnlSATm9Cls9Pc4XDHTbZlbMmwF2Jmukgz/l1vlTutt4ZgZwQkSEa9Qfoi9Zym0R
+iKls1CgD49zguR/cFDKK3agvfv6Afw6HdgaS/WqcI/Ros7b+RCkbAlAG5gqr6BLQ
+8RGyVjZSC4Mz/ddcnMEpRAnjuFJjhGA=
+-----END CERTIFICATE-----

integration_tests/certs/localhost.key

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----

integration_tests/prosody.cfg.lua

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

integration_tests/pubspec.yaml

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

integration_tests/test/component_test.dart

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

integration_tests/test/sasl2_test.dart

@@ -0,0 +1,74 @@
+import 'package:logging/logging.dart';
+import 'package:moxxmpp/moxxmpp.dart';
+import 'package:moxxmpp_socket_tcp/moxxmpp_socket_tcp.dart';
+import 'package:test/test.dart';
+
+class TestingTCPSocketWrapper extends TCPSocketWrapper {
+  @override
+  bool onBadCertificate(dynamic certificate, String domain) {
+    return true;
+  }
+}
+
+void main() {
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.listen((record) {
+    // ignore: avoid_print
+    print(
+      '[${record.level.name}] (${record.loggerName}) ${record.time}: ${record.message}',
+    );
+  });
+
+  test('Test authenticating against Prosody with SASL2, Bind2, and FAST',
+      () async {
+    final conn = XmppConnection(
+      TestingReconnectionPolicy(),
+      AlwaysConnectedConnectivityManager(),
+      ClientToServerNegotiator(),
+      TestingTCPSocketWrapper(),
+    )..connectionSettings = ConnectionSettings(
+        jid: JID.fromString('testuser@localhost'),
+        password: 'abc123',
+        host: '127.0.0.1',
+        port: 5222,
+      );
+    final csi = CSIManager();
+    await csi.setInactive(sendNonza: false);
+    await conn.registerManagers([
+      RosterManager(TestingRosterStateManager('', [])),
+      DiscoManager([]),
+    ]);
+    await conn.registerFeatureNegotiators([
+      SaslPlainNegotiator(),
+      ResourceBindingNegotiator(),
+      FASTSaslNegotiator(),
+      Bind2Negotiator(),
+      StartTlsNegotiator(),
+      Sasl2Negotiator(
+        userAgent: const UserAgent(
+          id: 'd4565fa7-4d72-4749-b3d3-740edbf87770',
+          software: 'moxxmpp',
+          device: "PapaTutuWawa's awesome device",
+        ),
+      ),
+    ]);
+
+    final result = await conn.connect(
+      waitUntilLogin: true,
+      shouldReconnect: false,
+      enableReconnectOnSuccess: false,
+    );
+    expect(result.isType<bool>(), true);
+    expect(
+      conn.getNegotiatorById<Sasl2Negotiator>(sasl2Negotiator)!.state,
+      NegotiatorState.done,
+    );
+    expect(
+      conn
+              .getNegotiatorById<FASTSaslNegotiator>(saslFASTNegotiator)!
+              .fastToken !=
+          null,
+      true,
+    );
+  });
+}

nix/moxxmpp-docs.nix

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

nix/moxxmpp.lock

@@ -0,0 +1,730 @@
+packages:
+  _fe_analyzer_shared:
+    archive_url: https://pub.dartlang.org/packages/_fe_analyzer_shared/versions/50.0.0.tar.gz
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      url: https://pub.dartlang.org
+    sha256: 1hyd5pmjcfyvfwhsc0wq6k0229abmqq5zn95g31hh42bklb2gci5
+    source: hosted
+    version: 50.0.0
+  analyzer:
+    archive_url: https://pub.dartlang.org/packages/analyzer/versions/5.2.0.tar.gz
+    dependency: transitive
+    description:
+      name: analyzer
+      url: https://pub.dartlang.org
+    sha256: 0niy5b3w39aywpjpw5a84pxdilhh3zzv1c22x8ywml756pybmj4r
+    source: hosted
+    version: 5.2.0
+  args:
+    archive_url: https://pub.dartlang.org/packages/args/versions/2.3.1.tar.gz
+    dependency: transitive
+    description:
+      name: args
+      url: https://pub.dartlang.org
+    sha256: 0c78zkzg2d2kzw1qrpiyrj1qvm4pr0yhnzapbqk347m780ha408g
+    source: hosted
+    version: 2.3.1
+  async:
+    archive_url: https://pub.dartlang.org/packages/async/versions/2.10.0.tar.gz
+    dependency: transitive
+    description:
+      name: async
+      url: https://pub.dartlang.org
+    sha256: 00hhylamsjcqmcbxlsrfimri63gb384l31r9mqvacn6c6bvk4yfx
+    source: hosted
+    version: 2.10.0
+  boolean_selector:
+    archive_url: https://pub.dartlang.org/packages/boolean_selector/versions/2.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: https://pub.dartlang.org
+    sha256: 0hxq8072hb89q9s91xlz9fvrjxfy7hw6jkdwkph5dp77df841kmj
+    source: hosted
+    version: 2.1.1
+  build:
+    archive_url: https://pub.dartlang.org/packages/build/versions/2.3.1.tar.gz
+    dependency: transitive
+    description:
+      name: build
+      url: https://pub.dartlang.org
+    sha256: 1x6nkii6kqy6y7ck0151yfhc9lp2nvbhznnhdi2mxr8afk6jxigd
+    source: hosted
+    version: 2.3.1
+  build_config:
+    archive_url: https://pub.dartlang.org/packages/build_config/versions/1.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: build_config
+      url: https://pub.dartlang.org
+    sha256: 092rrbhbdy9fk50jqb1fwj1sfk415fi43irvsd0hk5w90gn8vazj
+    source: hosted
+    version: 1.1.1
+  build_daemon:
+    archive_url: https://pub.dartlang.org/packages/build_daemon/versions/3.1.0.tar.gz
+    dependency: transitive
+    description:
+      name: build_daemon
+      url: https://pub.dartlang.org
+    sha256: 0b6hnwjc3gi5g7cnpy8xyiqigcrs0xp51c7y7v1pqn9v75g25w6j
+    source: hosted
+    version: 3.1.0
+  build_resolvers:
+    archive_url: https://pub.dartlang.org/packages/build_resolvers/versions/2.1.0.tar.gz
+    dependency: transitive
+    description:
+      name: build_resolvers
+      url: https://pub.dartlang.org
+    sha256: 0fnrisgq6rnvbqsf8v43hb11kr1qq6azrxbsvx3wwimd37nxx8m5
+    source: hosted
+    version: 2.1.0
+  build_runner:
+    archive_url: https://pub.dartlang.org/packages/build_runner/versions/2.3.2.tar.gz
+    dependency: direct dev
+    description:
+      name: build_runner
+      url: https://pub.dartlang.org
+    sha256: 0246bxl9rxgil55fhfzi7csd9a56blj9s1j1z79717hiyzsr60x6
+    source: hosted
+    version: 2.3.2
+  build_runner_core:
+    archive_url: https://pub.dartlang.org/packages/build_runner_core/versions/7.2.7.tar.gz
+    dependency: transitive
+    description:
+      name: build_runner_core
+      url: https://pub.dartlang.org
+    sha256: 0bpil0fw0dag3vbnin9p945ymi7xjgkiy7jrq9j52plljf7cnf5z
+    source: hosted
+    version: 7.2.7
+  built_collection:
+    archive_url: https://pub.dartlang.org/packages/built_collection/versions/5.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: built_collection
+      url: https://pub.dartlang.org
+    sha256: 0bqjahxr42q84w91nhv3n4cr580l3s3ffx3vgzyyypgqnrck0hv3
+    source: hosted
+    version: 5.1.1
+  built_value:
+    archive_url: https://pub.dartlang.org/packages/built_value/versions/8.4.2.tar.gz
+    dependency: transitive
+    description:
+      name: built_value
+      url: https://pub.dartlang.org
+    sha256: 0sslr4258snvcj8qhbdk6wapka174als0viyxddwqlnhs7dlci8i
+    source: hosted
+    version: 8.4.2
+  checked_yaml:
+    archive_url: https://pub.dartlang.org/packages/checked_yaml/versions/2.0.1.tar.gz
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: https://pub.dartlang.org
+    sha256: 1gf7ankc5jb7mk17br87ajv05pfg6vb8nf35ay6c35w8jp70ra7k
+    source: hosted
+    version: 2.0.1
+  code_builder:
+    archive_url: https://pub.dartlang.org/packages/code_builder/versions/4.3.0.tar.gz
+    dependency: transitive
+    description:
+      name: code_builder
+      url: https://pub.dartlang.org
+    sha256: 1vl9dl23yd0zjw52ndrazijs6dw83fg1rvyb2gfdpd6n1lj9nbhg
+    source: hosted
+    version: 4.3.0
+  collection:
+    archive_url: https://pub.dartlang.org/packages/collection/versions/1.17.0.tar.gz
+    dependency: direct main
+    description:
+      name: collection
+      url: https://pub.dartlang.org
+    sha256: 1iyl3v3j7mj3sxjf63b1kc182fwrwd04mjp5x2i61hic8ihfw545
+    source: hosted
+    version: 1.17.0
+  convert:
+    archive_url: https://pub.dartlang.org/packages/convert/versions/3.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: convert
+      url: https://pub.dartlang.org
+    sha256: 0adsigjk3l1c31i6k91p28dqyjlgwiqrs4lky5djrm2scf8k6cri
+    source: hosted
+    version: 3.1.1
+  coverage:
+    archive_url: https://pub.dartlang.org/packages/coverage/versions/1.6.1.tar.gz
+    dependency: transitive
+    description:
+      name: coverage
+      url: https://pub.dartlang.org
+    sha256: 0akbg1yp2h4vprc8r9xvrpgvp5d26h7m80h5sbzgr5dlis1bcw0d
+    source: hosted
+    version: 1.6.1
+  crypto:
+    archive_url: https://pub.dartlang.org/packages/crypto/versions/3.0.2.tar.gz
+    dependency: transitive
+    description:
+      name: crypto
+      url: https://pub.dartlang.org
+    sha256: 1kjfb8fvdxazmv9ps2iqdhb8kcr31115h0nwn6v4xmr71k8jb8ds
+    source: hosted
+    version: 3.0.2
+  cryptography:
+    archive_url: https://pub.dartlang.org/packages/cryptography/versions/2.0.5.tar.gz
+    dependency: direct main
+    description:
+      name: cryptography
+      url: https://pub.dartlang.org
+    sha256: 0jqph45d9lbhdakprnb84c3qhk4aq05hhb1pmn8w23yhl41ypijs
+    source: hosted
+    version: 2.0.5
+  dart_style:
+    archive_url: https://pub.dartlang.org/packages/dart_style/versions/2.2.4.tar.gz
+    dependency: transitive
+    description:
+      name: dart_style
+      url: https://pub.dartlang.org
+    sha256: 01wg15kalbjlh4i3xbawc9zk8yrk28qhak7xp7mlwn2syhdckn7v
+    source: hosted
+    version: 2.2.4
+  file:
+    archive_url: https://pub.dartlang.org/packages/file/versions/6.1.4.tar.gz
+    dependency: transitive
+    description:
+      name: file
+      url: https://pub.dartlang.org
+    sha256: 0ajcfblf8d4dicp1sgzkbrhd0b0v0d8wl70jsnf5drjck3p3ppk7
+    source: hosted
+    version: 6.1.4
+  fixnum:
+    archive_url: https://pub.dartlang.org/packages/fixnum/versions/1.0.1.tar.gz
+    dependency: transitive
+    description:
+      name: fixnum
+      url: https://pub.dartlang.org
+    sha256: 1m8cdfqp9d6w1cik3fwz9bai1wf9j11rjv2z0zlv7ich87q9kkjk
+    source: hosted
+    version: 1.0.1
+  freezed:
+    archive_url: https://pub.dartlang.org/packages/freezed/versions/2.1.1.tar.gz
+    dependency: direct main
+    description:
+      name: freezed
+      url: https://pub.dartlang.org
+    sha256: 1i9s4djf4vlz56zqn8brcck3n7sk07qay23wmaan991cqydd10iq
+    source: hosted
+    version: 2.1.1
+  freezed_annotation:
+    archive_url: https://pub.dartlang.org/packages/freezed_annotation/versions/2.1.0.tar.gz
+    dependency: direct main
+    description:
+      name: freezed_annotation
+      url: https://pub.dartlang.org
+    sha256: 0ym120dh1lpfnb68gxh1finm8p9l445q5x10aw8269y469b9k9z3
+    source: hosted
+    version: 2.1.0
+  frontend_server_client:
+    archive_url: https://pub.dartlang.org/packages/frontend_server_client/versions/3.1.0.tar.gz
+    dependency: transitive
+    description:
+      name: frontend_server_client
+      url: https://pub.dartlang.org
+    sha256: 0nv4avkv2if9hdcfzckz36f3mclv7vxchivrg8j3miaqhnjvv4bj
+    source: hosted
+    version: 3.1.0
+  glob:
+    archive_url: https://pub.dartlang.org/packages/glob/versions/2.1.0.tar.gz
+    dependency: transitive
+    description:
+      name: glob
+      url: https://pub.dartlang.org
+    sha256: 0a6gbwsbz6rkg35dkff0zv88rvcflqdmda90hdfpn7jp1z1w9rhs
+    source: hosted
+    version: 2.1.0
+  graphs:
+    archive_url: https://pub.dartlang.org/packages/graphs/versions/2.2.0.tar.gz
+    dependency: transitive
+    description:
+      name: graphs
+      url: https://pub.dartlang.org
+    sha256: 0cr6dgs1a7ln2ir5gd0kiwpn787lk4dwhqfjv8876hkkr1rv80m9
+    source: hosted
+    version: 2.2.0
+  hex:
+    archive_url: https://pub.dartlang.org/packages/hex/versions/0.2.0.tar.gz
+    dependency: direct main
+    description:
+      name: hex
+      url: https://pub.dartlang.org
+    sha256: 19w3f90mdiy06a6kf8hlwc4jn4cxixkj106kc3g3bis27ar7smkh
+    source: hosted
+    version: 0.2.0
+  http_multi_server:
+    archive_url: https://pub.dartlang.org/packages/http_multi_server/versions/3.2.1.tar.gz
+    dependency: transitive
+    description:
+      name: http_multi_server
+      url: https://pub.dartlang.org
+    sha256: 1zdcm04z85jahb2hs7qs85rh974kw49hffhy9cn1gfda3077dvql
+    source: hosted
+    version: 3.2.1
+  http_parser:
+    archive_url: https://pub.dartlang.org/packages/http_parser/versions/4.0.2.tar.gz
+    dependency: transitive
+    description:
+      name: http_parser
+      url: https://pub.dartlang.org
+    sha256: 027c4sjkhkkx3sk1aqs6s4djb87syi9h521qpm1bf21bq3gga5jd
+    source: hosted
+    version: 4.0.2
+  io:
+    archive_url: https://pub.dartlang.org/packages/io/versions/1.0.3.tar.gz
+    dependency: transitive
+    description:
+      name: io
+      url: https://pub.dartlang.org
+    sha256: 1bp5l8hkrp6fjj7zw9af51hxyp52sjspc5558lq0lmi453l0czni
+    source: hosted
+    version: 1.0.3
+  js:
+    archive_url: https://pub.dartlang.org/packages/js/versions/0.6.5.tar.gz
+    dependency: transitive
+    description:
+      name: js
+      url: https://pub.dartlang.org
+    sha256: 13fbxgyg1v6bmzvxamg6494vk3923fn3mgxj6f4y476aqwk99n50
+    source: hosted
+    version: 0.6.5
+  json_annotation:
+    archive_url: https://pub.dartlang.org/packages/json_annotation/versions/4.7.0.tar.gz
+    dependency: transitive
+    description:
+      name: json_annotation
+      url: https://pub.dartlang.org
+    sha256: 1p9nvn33psx2zbalhyqjw8gr4agd76jj5jq0fdz0i584c7l77bby
+    source: hosted
+    version: 4.7.0
+  json_serializable:
+    archive_url: https://pub.dartlang.org/packages/json_serializable/versions/6.5.4.tar.gz
+    dependency: direct main
+    description:
+      name: json_serializable
+      url: https://pub.dartlang.org
+    sha256: 04d7laaxrbiybcgbv3y223hy8d6n9f84h5lv9sv79zd9ffzkb2hg
+    source: hosted
+    version: 6.5.4
+  logging:
+    archive_url: https://pub.dartlang.org/packages/logging/versions/1.0.2.tar.gz
+    dependency: direct main
+    description:
+      name: logging
+      url: https://pub.dartlang.org
+    sha256: 0hl1mjh662c44ci7z60x92i0jsyqg1zm6k6fc89n9pdcxsqdpwfs
+    source: hosted
+    version: 1.0.2
+  matcher:
+    archive_url: https://pub.dartlang.org/packages/matcher/versions/0.12.13.tar.gz
+    dependency: transitive
+    description:
+      name: matcher
+      url: https://pub.dartlang.org
+    sha256: 0pjgc38clnjbv124n8bh724db1wcc4kk125j7dxl0icz7clvm0p0
+    source: hosted
+    version: 0.12.13
+  meta:
+    archive_url: https://pub.dartlang.org/packages/meta/versions/1.8.0.tar.gz
+    dependency: direct main
+    description:
+      name: meta
+      url: https://pub.dartlang.org
+    sha256: 01kqdd25nln5a219pr94s66p27m0kpqz0wpmwnm24kdy3ngif1v5
+    source: hosted
+    version: 1.8.0
+  mime:
+    archive_url: https://pub.dartlang.org/packages/mime/versions/1.0.2.tar.gz
+    dependency: transitive
+    description:
+      name: mime
+      url: https://pub.dartlang.org
+    sha256: 1dr3qikzvp10q1saka7azki5gk2kkf2v7k9wfqjsyxmza2zlv896
+    source: hosted
+    version: 1.0.2
+  moxlib:
+    archive_url: https://git.polynom.me/api/packages/moxxy/pub/api/packages/moxlib/files/0.1.5.tar.gz
+    dependency: direct main
+    description:
+      name: moxlib
+      url: https://git.polynom.me/api/packages/Moxxy/pub/
+    sha256: 1j52xglpwy8c7dbylc3f6vrh0p52xhhwqs4h0qcqk8c1rvjn5czq
+    source: hosted
+    version: 0.1.5
+  node_preamble:
+    archive_url: https://pub.dartlang.org/packages/node_preamble/versions/2.0.1.tar.gz
+    dependency: transitive
+    description:
+      name: node_preamble
+      url: https://pub.dartlang.org
+    sha256: 0i0gfc2yqa09182vc01lj47qpq98kfm9m8h4n8c5fby0mjd0lvyx
+    source: hosted
+    version: 2.0.1
+  omemo_dart:
+    archive_url: https://git.polynom.me/api/packages/PapaTutuWawa/pub/api/packages/omemo_dart/files/0.4.3.tar.gz
+    dependency: direct main
+    description:
+      name: omemo_dart
+      url: https://git.polynom.me/api/packages/PapaTutuWawa/pub/
+    sha256: 09x3jqa11hjdjp31nxnz91j6jssbc2f8a1lh44fmkc0d79hs8bbi
+    source: hosted
+    version: 0.4.3
+  package_config:
+    archive_url: https://pub.dartlang.org/packages/package_config/versions/2.1.0.tar.gz
+    dependency: transitive
+    description:
+      name: package_config
+      url: https://pub.dartlang.org
+    sha256: 1d4l0i4cby344zj45f5shrg2pkw1i1jn03kx0qqh0l7gh1ha7bpc
+    source: hosted
+    version: 2.1.0
+  path:
+    archive_url: https://pub.dartlang.org/packages/path/versions/1.8.2.tar.gz
+    dependency: transitive
+    description:
+      name: path
+      url: https://pub.dartlang.org
+    sha256: 16ggdh29ciy7h8sdshhwmxn6dd12sfbykf2j82c56iwhhlljq181
+    source: hosted
+    version: 1.8.2
+  pedantic:
+    archive_url: https://pub.dartlang.org/packages/pedantic/versions/1.11.1.tar.gz
+    dependency: transitive
+    description:
+      name: pedantic
+      url: https://pub.dartlang.org
+    sha256: 10ch0h3hi6cfwiz2ihfkh6m36m75c0m7fd0wwqaqggffsj2dn8ad
+    source: hosted
+    version: 1.11.1
+  petitparser:
+    archive_url: https://pub.dartlang.org/packages/petitparser/versions/5.1.0.tar.gz
+    dependency: transitive
+    description:
+      name: petitparser
+      url: https://pub.dartlang.org
+    sha256: 1pqqqqiy9ald24qsi24q9qrr0zphgpsrnrv9rlx4vwr6xak7d8c0
+    source: hosted
+    version: 5.1.0
+  pinenacl:
+    archive_url: https://pub.dartlang.org/packages/pinenacl/versions/0.5.1.tar.gz
+    dependency: transitive
+    description:
+      name: pinenacl
+      url: https://pub.dartlang.org
+    sha256: 0didjgva658z90hbcmhd0y8w1b8v86dp6gabfhylnw1aixl47cxg
+    source: hosted
+    version: 0.5.1
+  pool:
+    archive_url: https://pub.dartlang.org/packages/pool/versions/1.5.1.tar.gz
+    dependency: transitive
+    description:
+      name: pool
+      url: https://pub.dartlang.org
+    sha256: 0wmzs46hjszv3ayhr1p5l7xza7q9rkg2q9z4swmhdqmhlz3c50x4
+    source: hosted
+    version: 1.5.1
+  pub_semver:
+    archive_url: https://pub.dartlang.org/packages/pub_semver/versions/2.1.2.tar.gz
+    dependency: transitive
+    description:
+      name: pub_semver
+      url: https://pub.dartlang.org
+    sha256: 1vsj5c1f2dza4l5zmjix4zh65lp8gsg6pw01h57pijx2id0g4bwi
+    source: hosted
+    version: 2.1.2
+  pubspec_parse:
+    archive_url: https://pub.dartlang.org/packages/pubspec_parse/versions/1.2.1.tar.gz
+    dependency: transitive
+    description:
+      name: pubspec_parse
+      url: https://pub.dartlang.org
+    sha256: 19dmr9k4wsqjnhlzp1lbrw8dv7a1gnwmr8l5j9zlw407rmfg20d1
+    source: hosted
+    version: 1.2.1
+  random_string:
+    archive_url: https://pub.dartlang.org/packages/random_string/versions/2.3.1.tar.gz
+    dependency: direct main
+    description:
+      name: random_string
+      url: https://pub.dartlang.org
+    sha256: 11cjiv75sgldvk3x7w6j77lgi08r6737wm94m3ylabylsr6zdyff
+    source: hosted
+    version: 2.3.1
+  saslprep:
+    archive_url: https://pub.dartlang.org/packages/saslprep/versions/1.0.2.tar.gz
+    dependency: direct main
+    description:
+      name: saslprep
+      url: https://pub.dartlang.org
+    sha256: 04lss0xvm6p801p8306jdxg7k0b28kr6n65dz2f57dkca237kcw7
+    source: hosted
+    version: 1.0.2
+  shelf:
+    archive_url: https://pub.dartlang.org/packages/shelf/versions/1.4.0.tar.gz
+    dependency: transitive
+    description:
+      name: shelf
+      url: https://pub.dartlang.org
+    sha256: 0x2xl7glrnq0hdxpy2i94a4wxbdrd6dm46hvhzgjn8alsm8z0wz1
+    source: hosted
+    version: 1.4.0
+  shelf_packages_handler:
+    archive_url: https://pub.dartlang.org/packages/shelf_packages_handler/versions/3.0.1.tar.gz
+    dependency: transitive
+    description:
+      name: shelf_packages_handler
+      url: https://pub.dartlang.org
+    sha256: 199rbdbifj46lg3iynznnsbs8zr4dfcw0s7wan8v73nvpqvli82q
+    source: hosted
+    version: 3.0.1
+  shelf_static:
+    archive_url: https://pub.dartlang.org/packages/shelf_static/versions/1.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: shelf_static
+      url: https://pub.dartlang.org
+    sha256: 1kqbaslz7bna9lldda3ibrjg0gczbzlwgm9cic8shg0bnl0v3s34
+    source: hosted
+    version: 1.1.1
+  shelf_web_socket:
+    archive_url: https://pub.dartlang.org/packages/shelf_web_socket/versions/1.0.3.tar.gz
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      url: https://pub.dartlang.org
+    sha256: 0rr87nx2wdf9alippxiidqlgi82fbprnsarr1jswg9qin0yy4jpn
+    source: hosted
+    version: 1.0.3
+  source_gen:
+    archive_url: https://pub.dartlang.org/packages/source_gen/versions/1.2.6.tar.gz
+    dependency: transitive
+    description:
+      name: source_gen
+      url: https://pub.dartlang.org
+    sha256: 1kxgx782lzpjhv736h0pz3lnxpcgiy05h0ysy0q77gix8q09i1hz
+    source: hosted
+    version: 1.2.6
+  source_helper:
+    archive_url: https://pub.dartlang.org/packages/source_helper/versions/1.3.3.tar.gz
+    dependency: transitive
+    description:
+      name: source_helper
+      url: https://pub.dartlang.org
+    sha256: 044kzmzlfpx93s4raz5avijahizmvai0zvl0lbm4wi93ynhdp1pd
+    source: hosted
+    version: 1.3.3
+  source_map_stack_trace:
+    archive_url: https://pub.dartlang.org/packages/source_map_stack_trace/versions/2.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: source_map_stack_trace
+      url: https://pub.dartlang.org
+    sha256: 0b5d4c5n5qd3j8n10gp1khhr508wfl3819bhk6xnl34qxz8n032k
+    source: hosted
+    version: 2.1.1
+  source_maps:
+    archive_url: https://pub.dartlang.org/packages/source_maps/versions/0.10.11.tar.gz
+    dependency: transitive
+    description:
+      name: source_maps
+      url: https://pub.dartlang.org
+    sha256: 18ixrlz3l2alk3hp0884qj0mcgzhxmjpg6nq0n1200pfy62pc4z6
+    source: hosted
+    version: 0.10.11
+  source_span:
+    archive_url: https://pub.dartlang.org/packages/source_span/versions/1.9.1.tar.gz
+    dependency: transitive
+    description:
+      name: source_span
+      url: https://pub.dartlang.org
+    sha256: 1lq4sy7lw15qsv9cijf6l48p16qr19r7njzwr4pxn8vv1kh6rb86
+    source: hosted
+    version: 1.9.1
+  stack_trace:
+    archive_url: https://pub.dartlang.org/packages/stack_trace/versions/1.11.0.tar.gz
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: https://pub.dartlang.org
+    sha256: 0bggqvvpkrfvqz24bnir4959k0c45azc3zivk4lyv3mvba6092na
+    source: hosted
+    version: 1.11.0
+  stream_channel:
+    archive_url: https://pub.dartlang.org/packages/stream_channel/versions/2.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: https://pub.dartlang.org
+    sha256: 054by84c60yxphr3qgg6f82gg6d22a54aqjp265anlm8dwz1ji32
+    source: hosted
+    version: 2.1.1
+  stream_transform:
+    archive_url: https://pub.dartlang.org/packages/stream_transform/versions/2.1.0.tar.gz
+    dependency: transitive
+    description:
+      name: stream_transform
+      url: https://pub.dartlang.org
+    sha256: 0jq6767v9ds17i2nd6mdd9i0f7nvsgg3dz74d0v54x66axjgr0gp
+    source: hosted
+    version: 2.1.0
+  string_scanner:
+    archive_url: https://pub.dartlang.org/packages/string_scanner/versions/1.2.0.tar.gz
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: https://pub.dartlang.org
+    sha256: 0p1r0v2923avwfg03rk0pmc6f21m0zxpcx6i57xygd25k6hdfi00
+    source: hosted
+    version: 1.2.0
+  synchronized:
+    archive_url: https://pub.dartlang.org/packages/synchronized/versions/3.0.0%2B2.tar.gz
+    dependency: direct main
+    description:
+      name: synchronized
+      url: https://pub.dartlang.org
+    sha256: 1j6108cq1hbcqpwhk9sah8q3gcidd7222bzhha2nk9syxhzqy82i
+    source: hosted
+    version: 3.0.0+2
+  term_glyph:
+    archive_url: https://pub.dartlang.org/packages/term_glyph/versions/1.2.1.tar.gz
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: https://pub.dartlang.org
+    sha256: 1x8nspxaccls0sxjamp703yp55yxdvhj6wg21lzwd296i9rwlxh9
+    source: hosted
+    version: 1.2.1
+  test:
+    archive_url: https://pub.dartlang.org/packages/test/versions/1.22.0.tar.gz
+    dependency: direct dev
+    description:
+      name: test
+      url: https://pub.dartlang.org
+    sha256: 08kimbjvkdw3bkj7za36p3yqdr8dnlb5v30c250kvdncb7k09h4x
+    source: hosted
+    version: 1.22.0
+  test_api:
+    archive_url: https://pub.dartlang.org/packages/test_api/versions/0.4.16.tar.gz
+    dependency: transitive
+    description:
+      name: test_api
+      url: https://pub.dartlang.org
+    sha256: 0mfyjpqkkmaqdh7xygrydx12591wq9ll816f61n80dc6rmkdx7px
+    source: hosted
+    version: 0.4.16
+  test_core:
+    archive_url: https://pub.dartlang.org/packages/test_core/versions/0.4.20.tar.gz
+    dependency: transitive
+    description:
+      name: test_core
+      url: https://pub.dartlang.org
+    sha256: 1r8dnvkxxvh55z1c8lrsja1m0dkf5i4lgwwqixcx0mqvxx5w3005
+    source: hosted
+    version: 0.4.20
+  timing:
+    archive_url: https://pub.dartlang.org/packages/timing/versions/1.0.0.tar.gz
+    dependency: transitive
+    description:
+      name: timing
+      url: https://pub.dartlang.org
+    sha256: 0a02znvy0fbzr0n4ai67pp8in7w6m768aynkk1kp5lnmgy17ppsg
+    source: hosted
+    version: 1.0.0
+  typed_data:
+    archive_url: https://pub.dartlang.org/packages/typed_data/versions/1.3.1.tar.gz
+    dependency: transitive
+    description:
+      name: typed_data
+      url: https://pub.dartlang.org
+    sha256: 1x402bvyzdmdvmyqhyfamjxf54p9j8sa8ns2n5dwsdhnfqbw859g
+    source: hosted
+    version: 1.3.1
+  unorm_dart:
+    archive_url: https://pub.dartlang.org/packages/unorm_dart/versions/0.2.0.tar.gz
+    dependency: transitive
+    description:
+      name: unorm_dart
+      url: https://pub.dartlang.org
+    sha256: 05kyk2764yz14pzgx00i7h5b1lzh8kjqnxspfzyf8z920bcgbz0v
+    source: hosted
+    version: 0.2.0
+  uuid:
+    archive_url: https://pub.dartlang.org/packages/uuid/versions/3.0.5.tar.gz
+    dependency: direct main
+    description:
+      name: uuid
+      url: https://pub.dartlang.org
+    sha256: 12lsynr07lw9848jknmzxvzn3ia12xdj07iiva0vg0qjvpq7ladg
+    source: hosted
+    version: 3.0.5
+  very_good_analysis:
+    archive_url: https://pub.dartlang.org/packages/very_good_analysis/versions/3.1.0.tar.gz
+    dependency: direct dev
+    description:
+      name: very_good_analysis
+      url: https://pub.dartlang.org
+    sha256: 1p2dh8aahbqyyqfzbsxswafgxnmxgisjq2xfp008skyh7imk6sz4
+    source: hosted
+    version: 3.1.0
+  vm_service:
+    archive_url: https://pub.dartlang.org/packages/vm_service/versions/9.4.0.tar.gz
+    dependency: transitive
+    description:
+      name: vm_service
+      url: https://pub.dartlang.org
+    sha256: 05xaxaxzyfls6jklw1hzws2jmina1cjk10gbl7a63djh1ghnzjb5
+    source: hosted
+    version: 9.4.0
+  watcher:
+    archive_url: https://pub.dartlang.org/packages/watcher/versions/1.0.2.tar.gz
+    dependency: transitive
+    description:
+      name: watcher
+      url: https://pub.dartlang.org
+    sha256: 1sk7gvwa7s0h4l652qrgbh7l8wyqc6nr6lki8m4rj55720p0fnyg
+    source: hosted
+    version: 1.0.2
+  web_socket_channel:
+    archive_url: https://pub.dartlang.org/packages/web_socket_channel/versions/2.2.0.tar.gz
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      url: https://pub.dartlang.org
+    sha256: 147amn05v1f1a1grxjr7yzgshrczjwijwiywggsv6dgic8kxyj5a
+    source: hosted
+    version: 2.2.0
+  webkit_inspection_protocol:
+    archive_url: https://pub.dartlang.org/packages/webkit_inspection_protocol/versions/1.2.0.tar.gz
+    dependency: transitive
+    description:
+      name: webkit_inspection_protocol
+      url: https://pub.dartlang.org
+    sha256: 0z400dzw7gf68a3wm95xi2mf461iigkyq6x69xgi7qs3fvpmn3hx
+    source: hosted
+    version: 1.2.0
+  xml:
+    archive_url: https://pub.dartlang.org/packages/xml/versions/6.2.0.tar.gz
+    dependency: direct main
+    description:
+      name: xml
+      url: https://pub.dartlang.org
+    sha256: 0jwknkfcnb5svg6r01xjsj0aiw06mlx54pgay1ymaaqm2mjhyz01
+    source: hosted
+    version: 6.2.0
+  yaml:
+    archive_url: https://pub.dartlang.org/packages/yaml/versions/3.1.1.tar.gz
+    dependency: transitive
+    description:
+      name: yaml
+      url: https://pub.dartlang.org
+    sha256: 0mqqmzn3c9rr38b5xm312fz1vyp6vb36lm477r9hak77bxzpp0iw
+    source: hosted
+    version: 3.1.1

nix/pubcache.moxxmpp.nix

@@ -0,0 +1,814 @@
+{fetchzip, runCommand} : rec {
+  _fe_analyzer_shared = fetchzip {
+    sha256 = "1hyd5pmjcfyvfwhsc0wq6k0229abmqq5zn95g31hh42bklb2gci5";
+    url = "https://pub.dartlang.org/packages/_fe_analyzer_shared/versions/50.0.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  analyzer = fetchzip {
+    sha256 = "0niy5b3w39aywpjpw5a84pxdilhh3zzv1c22x8ywml756pybmj4r";
+    url = "https://pub.dartlang.org/packages/analyzer/versions/5.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  args = fetchzip {
+    sha256 = "0c78zkzg2d2kzw1qrpiyrj1qvm4pr0yhnzapbqk347m780ha408g";
+    url = "https://pub.dartlang.org/packages/args/versions/2.3.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  async = fetchzip {
+    sha256 = "00hhylamsjcqmcbxlsrfimri63gb384l31r9mqvacn6c6bvk4yfx";
+    url = "https://pub.dartlang.org/packages/async/versions/2.10.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  boolean_selector = fetchzip {
+    sha256 = "0hxq8072hb89q9s91xlz9fvrjxfy7hw6jkdwkph5dp77df841kmj";
+    url = "https://pub.dartlang.org/packages/boolean_selector/versions/2.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build = fetchzip {
+    sha256 = "1x6nkii6kqy6y7ck0151yfhc9lp2nvbhznnhdi2mxr8afk6jxigd";
+    url = "https://pub.dartlang.org/packages/build/versions/2.3.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build_config = fetchzip {
+    sha256 = "092rrbhbdy9fk50jqb1fwj1sfk415fi43irvsd0hk5w90gn8vazj";
+    url = "https://pub.dartlang.org/packages/build_config/versions/1.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build_daemon = fetchzip {
+    sha256 = "0b6hnwjc3gi5g7cnpy8xyiqigcrs0xp51c7y7v1pqn9v75g25w6j";
+    url = "https://pub.dartlang.org/packages/build_daemon/versions/3.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build_resolvers = fetchzip {
+    sha256 = "0fnrisgq6rnvbqsf8v43hb11kr1qq6azrxbsvx3wwimd37nxx8m5";
+    url = "https://pub.dartlang.org/packages/build_resolvers/versions/2.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build_runner = fetchzip {
+    sha256 = "0246bxl9rxgil55fhfzi7csd9a56blj9s1j1z79717hiyzsr60x6";
+    url = "https://pub.dartlang.org/packages/build_runner/versions/2.3.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  build_runner_core = fetchzip {
+    sha256 = "0bpil0fw0dag3vbnin9p945ymi7xjgkiy7jrq9j52plljf7cnf5z";
+    url = "https://pub.dartlang.org/packages/build_runner_core/versions/7.2.7.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  built_collection = fetchzip {
+    sha256 = "0bqjahxr42q84w91nhv3n4cr580l3s3ffx3vgzyyypgqnrck0hv3";
+    url = "https://pub.dartlang.org/packages/built_collection/versions/5.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  built_value = fetchzip {
+    sha256 = "0sslr4258snvcj8qhbdk6wapka174als0viyxddwqlnhs7dlci8i";
+    url = "https://pub.dartlang.org/packages/built_value/versions/8.4.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  checked_yaml = fetchzip {
+    sha256 = "1gf7ankc5jb7mk17br87ajv05pfg6vb8nf35ay6c35w8jp70ra7k";
+    url = "https://pub.dartlang.org/packages/checked_yaml/versions/2.0.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  code_builder = fetchzip {
+    sha256 = "1vl9dl23yd0zjw52ndrazijs6dw83fg1rvyb2gfdpd6n1lj9nbhg";
+    url = "https://pub.dartlang.org/packages/code_builder/versions/4.3.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  collection = fetchzip {
+    sha256 = "1iyl3v3j7mj3sxjf63b1kc182fwrwd04mjp5x2i61hic8ihfw545";
+    url = "https://pub.dartlang.org/packages/collection/versions/1.17.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  convert = fetchzip {
+    sha256 = "0adsigjk3l1c31i6k91p28dqyjlgwiqrs4lky5djrm2scf8k6cri";
+    url = "https://pub.dartlang.org/packages/convert/versions/3.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  coverage = fetchzip {
+    sha256 = "0akbg1yp2h4vprc8r9xvrpgvp5d26h7m80h5sbzgr5dlis1bcw0d";
+    url = "https://pub.dartlang.org/packages/coverage/versions/1.6.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  crypto = fetchzip {
+    sha256 = "1kjfb8fvdxazmv9ps2iqdhb8kcr31115h0nwn6v4xmr71k8jb8ds";
+    url = "https://pub.dartlang.org/packages/crypto/versions/3.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  cryptography = fetchzip {
+    sha256 = "0jqph45d9lbhdakprnb84c3qhk4aq05hhb1pmn8w23yhl41ypijs";
+    url = "https://pub.dartlang.org/packages/cryptography/versions/2.0.5.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  dart_style = fetchzip {
+    sha256 = "01wg15kalbjlh4i3xbawc9zk8yrk28qhak7xp7mlwn2syhdckn7v";
+    url = "https://pub.dartlang.org/packages/dart_style/versions/2.2.4.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  file = fetchzip {
+    sha256 = "0ajcfblf8d4dicp1sgzkbrhd0b0v0d8wl70jsnf5drjck3p3ppk7";
+    url = "https://pub.dartlang.org/packages/file/versions/6.1.4.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  fixnum = fetchzip {
+    sha256 = "1m8cdfqp9d6w1cik3fwz9bai1wf9j11rjv2z0zlv7ich87q9kkjk";
+    url = "https://pub.dartlang.org/packages/fixnum/versions/1.0.1.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";
+    url = "https://pub.dartlang.org/packages/frontend_server_client/versions/3.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  glob = fetchzip {
+    sha256 = "0a6gbwsbz6rkg35dkff0zv88rvcflqdmda90hdfpn7jp1z1w9rhs";
+    url = "https://pub.dartlang.org/packages/glob/versions/2.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  graphs = fetchzip {
+    sha256 = "0cr6dgs1a7ln2ir5gd0kiwpn787lk4dwhqfjv8876hkkr1rv80m9";
+    url = "https://pub.dartlang.org/packages/graphs/versions/2.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  hex = fetchzip {
+    sha256 = "19w3f90mdiy06a6kf8hlwc4jn4cxixkj106kc3g3bis27ar7smkh";
+    url = "https://pub.dartlang.org/packages/hex/versions/0.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  http_multi_server = fetchzip {
+    sha256 = "1zdcm04z85jahb2hs7qs85rh974kw49hffhy9cn1gfda3077dvql";
+    url = "https://pub.dartlang.org/packages/http_multi_server/versions/3.2.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  http_parser = fetchzip {
+    sha256 = "027c4sjkhkkx3sk1aqs6s4djb87syi9h521qpm1bf21bq3gga5jd";
+    url = "https://pub.dartlang.org/packages/http_parser/versions/4.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  io = fetchzip {
+    sha256 = "1bp5l8hkrp6fjj7zw9af51hxyp52sjspc5558lq0lmi453l0czni";
+    url = "https://pub.dartlang.org/packages/io/versions/1.0.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  js = fetchzip {
+    sha256 = "13fbxgyg1v6bmzvxamg6494vk3923fn3mgxj6f4y476aqwk99n50";
+    url = "https://pub.dartlang.org/packages/js/versions/0.6.5.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  json_annotation = fetchzip {
+    sha256 = "1p9nvn33psx2zbalhyqjw8gr4agd76jj5jq0fdz0i584c7l77bby";
+    url = "https://pub.dartlang.org/packages/json_annotation/versions/4.7.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  json_serializable = fetchzip {
+    sha256 = "04d7laaxrbiybcgbv3y223hy8d6n9f84h5lv9sv79zd9ffzkb2hg";
+    url = "https://pub.dartlang.org/packages/json_serializable/versions/6.5.4.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  logging = fetchzip {
+    sha256 = "0hl1mjh662c44ci7z60x92i0jsyqg1zm6k6fc89n9pdcxsqdpwfs";
+    url = "https://pub.dartlang.org/packages/logging/versions/1.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  matcher = fetchzip {
+    sha256 = "0pjgc38clnjbv124n8bh724db1wcc4kk125j7dxl0icz7clvm0p0";
+    url = "https://pub.dartlang.org/packages/matcher/versions/0.12.13.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  meta = fetchzip {
+    sha256 = "01kqdd25nln5a219pr94s66p27m0kpqz0wpmwnm24kdy3ngif1v5";
+    url = "https://pub.dartlang.org/packages/meta/versions/1.8.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  mime = fetchzip {
+    sha256 = "1dr3qikzvp10q1saka7azki5gk2kkf2v7k9wfqjsyxmza2zlv896";
+    url = "https://pub.dartlang.org/packages/mime/versions/1.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  moxlib = fetchzip {
+    sha256 = "1j52xglpwy8c7dbylc3f6vrh0p52xhhwqs4h0qcqk8c1rvjn5czq";
+    url = "https://git.polynom.me/api/packages/moxxy/pub/api/packages/moxlib/files/0.1.5.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  node_preamble = fetchzip {
+    sha256 = "0i0gfc2yqa09182vc01lj47qpq98kfm9m8h4n8c5fby0mjd0lvyx";
+    url = "https://pub.dartlang.org/packages/node_preamble/versions/2.0.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  omemo_dart = fetchzip {
+    sha256 = "09x3jqa11hjdjp31nxnz91j6jssbc2f8a1lh44fmkc0d79hs8bbi";
+    url = "https://git.polynom.me/api/packages/PapaTutuWawa/pub/api/packages/omemo_dart/files/0.4.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  package_config = fetchzip {
+    sha256 = "1d4l0i4cby344zj45f5shrg2pkw1i1jn03kx0qqh0l7gh1ha7bpc";
+    url = "https://pub.dartlang.org/packages/package_config/versions/2.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  path = fetchzip {
+    sha256 = "16ggdh29ciy7h8sdshhwmxn6dd12sfbykf2j82c56iwhhlljq181";
+    url = "https://pub.dartlang.org/packages/path/versions/1.8.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pedantic = fetchzip {
+    sha256 = "10ch0h3hi6cfwiz2ihfkh6m36m75c0m7fd0wwqaqggffsj2dn8ad";
+    url = "https://pub.dartlang.org/packages/pedantic/versions/1.11.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  petitparser = fetchzip {
+    sha256 = "1pqqqqiy9ald24qsi24q9qrr0zphgpsrnrv9rlx4vwr6xak7d8c0";
+    url = "https://pub.dartlang.org/packages/petitparser/versions/5.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pinenacl = fetchzip {
+    sha256 = "0didjgva658z90hbcmhd0y8w1b8v86dp6gabfhylnw1aixl47cxg";
+    url = "https://pub.dartlang.org/packages/pinenacl/versions/0.5.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pool = fetchzip {
+    sha256 = "0wmzs46hjszv3ayhr1p5l7xza7q9rkg2q9z4swmhdqmhlz3c50x4";
+    url = "https://pub.dartlang.org/packages/pool/versions/1.5.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pub_semver = fetchzip {
+    sha256 = "1vsj5c1f2dza4l5zmjix4zh65lp8gsg6pw01h57pijx2id0g4bwi";
+    url = "https://pub.dartlang.org/packages/pub_semver/versions/2.1.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pubspec_parse = fetchzip {
+    sha256 = "19dmr9k4wsqjnhlzp1lbrw8dv7a1gnwmr8l5j9zlw407rmfg20d1";
+    url = "https://pub.dartlang.org/packages/pubspec_parse/versions/1.2.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  random_string = fetchzip {
+    sha256 = "11cjiv75sgldvk3x7w6j77lgi08r6737wm94m3ylabylsr6zdyff";
+    url = "https://pub.dartlang.org/packages/random_string/versions/2.3.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  saslprep = fetchzip {
+    sha256 = "04lss0xvm6p801p8306jdxg7k0b28kr6n65dz2f57dkca237kcw7";
+    url = "https://pub.dartlang.org/packages/saslprep/versions/1.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  shelf = fetchzip {
+    sha256 = "0x2xl7glrnq0hdxpy2i94a4wxbdrd6dm46hvhzgjn8alsm8z0wz1";
+    url = "https://pub.dartlang.org/packages/shelf/versions/1.4.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  shelf_packages_handler = fetchzip {
+    sha256 = "199rbdbifj46lg3iynznnsbs8zr4dfcw0s7wan8v73nvpqvli82q";
+    url = "https://pub.dartlang.org/packages/shelf_packages_handler/versions/3.0.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  shelf_static = fetchzip {
+    sha256 = "1kqbaslz7bna9lldda3ibrjg0gczbzlwgm9cic8shg0bnl0v3s34";
+    url = "https://pub.dartlang.org/packages/shelf_static/versions/1.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  shelf_web_socket = fetchzip {
+    sha256 = "0rr87nx2wdf9alippxiidqlgi82fbprnsarr1jswg9qin0yy4jpn";
+    url = "https://pub.dartlang.org/packages/shelf_web_socket/versions/1.0.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  source_gen = fetchzip {
+    sha256 = "1kxgx782lzpjhv736h0pz3lnxpcgiy05h0ysy0q77gix8q09i1hz";
+    url = "https://pub.dartlang.org/packages/source_gen/versions/1.2.6.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  source_helper = fetchzip {
+    sha256 = "044kzmzlfpx93s4raz5avijahizmvai0zvl0lbm4wi93ynhdp1pd";
+    url = "https://pub.dartlang.org/packages/source_helper/versions/1.3.3.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  source_map_stack_trace = fetchzip {
+    sha256 = "0b5d4c5n5qd3j8n10gp1khhr508wfl3819bhk6xnl34qxz8n032k";
+    url = "https://pub.dartlang.org/packages/source_map_stack_trace/versions/2.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  source_maps = fetchzip {
+    sha256 = "18ixrlz3l2alk3hp0884qj0mcgzhxmjpg6nq0n1200pfy62pc4z6";
+    url = "https://pub.dartlang.org/packages/source_maps/versions/0.10.11.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  source_span = fetchzip {
+    sha256 = "1lq4sy7lw15qsv9cijf6l48p16qr19r7njzwr4pxn8vv1kh6rb86";
+    url = "https://pub.dartlang.org/packages/source_span/versions/1.9.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  stack_trace = fetchzip {
+    sha256 = "0bggqvvpkrfvqz24bnir4959k0c45azc3zivk4lyv3mvba6092na";
+    url = "https://pub.dartlang.org/packages/stack_trace/versions/1.11.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  stream_channel = fetchzip {
+    sha256 = "054by84c60yxphr3qgg6f82gg6d22a54aqjp265anlm8dwz1ji32";
+    url = "https://pub.dartlang.org/packages/stream_channel/versions/2.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  stream_transform = fetchzip {
+    sha256 = "0jq6767v9ds17i2nd6mdd9i0f7nvsgg3dz74d0v54x66axjgr0gp";
+    url = "https://pub.dartlang.org/packages/stream_transform/versions/2.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  string_scanner = fetchzip {
+    sha256 = "0p1r0v2923avwfg03rk0pmc6f21m0zxpcx6i57xygd25k6hdfi00";
+    url = "https://pub.dartlang.org/packages/string_scanner/versions/1.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  synchronized = fetchzip {
+    sha256 = "1j6108cq1hbcqpwhk9sah8q3gcidd7222bzhha2nk9syxhzqy82i";
+    url = "https://pub.dartlang.org/packages/synchronized/versions/3.0.0%2B2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  term_glyph = fetchzip {
+    sha256 = "1x8nspxaccls0sxjamp703yp55yxdvhj6wg21lzwd296i9rwlxh9";
+    url = "https://pub.dartlang.org/packages/term_glyph/versions/1.2.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  test = fetchzip {
+    sha256 = "08kimbjvkdw3bkj7za36p3yqdr8dnlb5v30c250kvdncb7k09h4x";
+    url = "https://pub.dartlang.org/packages/test/versions/1.22.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  test_api = fetchzip {
+    sha256 = "0mfyjpqkkmaqdh7xygrydx12591wq9ll816f61n80dc6rmkdx7px";
+    url = "https://pub.dartlang.org/packages/test_api/versions/0.4.16.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  test_core = fetchzip {
+    sha256 = "1r8dnvkxxvh55z1c8lrsja1m0dkf5i4lgwwqixcx0mqvxx5w3005";
+    url = "https://pub.dartlang.org/packages/test_core/versions/0.4.20.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  timing = fetchzip {
+    sha256 = "0a02znvy0fbzr0n4ai67pp8in7w6m768aynkk1kp5lnmgy17ppsg";
+    url = "https://pub.dartlang.org/packages/timing/versions/1.0.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  typed_data = fetchzip {
+    sha256 = "1x402bvyzdmdvmyqhyfamjxf54p9j8sa8ns2n5dwsdhnfqbw859g";
+    url = "https://pub.dartlang.org/packages/typed_data/versions/1.3.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  unorm_dart = fetchzip {
+    sha256 = "05kyk2764yz14pzgx00i7h5b1lzh8kjqnxspfzyf8z920bcgbz0v";
+    url = "https://pub.dartlang.org/packages/unorm_dart/versions/0.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  uuid = fetchzip {
+    sha256 = "12lsynr07lw9848jknmzxvzn3ia12xdj07iiva0vg0qjvpq7ladg";
+    url = "https://pub.dartlang.org/packages/uuid/versions/3.0.5.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  very_good_analysis = fetchzip {
+    sha256 = "1p2dh8aahbqyyqfzbsxswafgxnmxgisjq2xfp008skyh7imk6sz4";
+    url = "https://pub.dartlang.org/packages/very_good_analysis/versions/3.1.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  vm_service = fetchzip {
+    sha256 = "05xaxaxzyfls6jklw1hzws2jmina1cjk10gbl7a63djh1ghnzjb5";
+    url = "https://pub.dartlang.org/packages/vm_service/versions/9.4.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  watcher = fetchzip {
+    sha256 = "1sk7gvwa7s0h4l652qrgbh7l8wyqc6nr6lki8m4rj55720p0fnyg";
+    url = "https://pub.dartlang.org/packages/watcher/versions/1.0.2.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  web_socket_channel = fetchzip {
+    sha256 = "147amn05v1f1a1grxjr7yzgshrczjwijwiywggsv6dgic8kxyj5a";
+    url = "https://pub.dartlang.org/packages/web_socket_channel/versions/2.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  webkit_inspection_protocol = fetchzip {
+    sha256 = "0z400dzw7gf68a3wm95xi2mf461iigkyq6x69xgi7qs3fvpmn3hx";
+    url = "https://pub.dartlang.org/packages/webkit_inspection_protocol/versions/1.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  xml = fetchzip {
+    sha256 = "0jwknkfcnb5svg6r01xjsj0aiw06mlx54pgay1ymaaqm2mjhyz01";
+    url = "https://pub.dartlang.org/packages/xml/versions/6.2.0.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  yaml = fetchzip {
+    sha256 = "0mqqmzn3c9rr38b5xm312fz1vyp6vb36lm477r9hak77bxzpp0iw";
+    url = "https://pub.dartlang.org/packages/yaml/versions/3.1.1.tar.gz";
+    stripRoot = false;
+    extension = "tar.gz";
+  };
+
+  pubCache = runCommand "moxxmpp-pub-cache" {} ''
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${_fe_analyzer_shared} $out/hosted/pub.dartlang.org/_fe_analyzer_shared-50.0.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${analyzer} $out/hosted/pub.dartlang.org/analyzer-5.2.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${args} $out/hosted/pub.dartlang.org/args-2.3.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${async} $out/hosted/pub.dartlang.org/async-2.10.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${boolean_selector} $out/hosted/pub.dartlang.org/boolean_selector-2.1.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${build} $out/hosted/pub.dartlang.org/build-2.3.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${build_config} $out/hosted/pub.dartlang.org/build_config-1.1.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${build_daemon} $out/hosted/pub.dartlang.org/build_daemon-3.1.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${build_resolvers} $out/hosted/pub.dartlang.org/build_resolvers-2.1.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${build_runner} $out/hosted/pub.dartlang.org/build_runner-2.3.2
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${build_runner_core} $out/hosted/pub.dartlang.org/build_runner_core-7.2.7
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${built_collection} $out/hosted/pub.dartlang.org/built_collection-5.1.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${built_value} $out/hosted/pub.dartlang.org/built_value-8.4.2
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${checked_yaml} $out/hosted/pub.dartlang.org/checked_yaml-2.0.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${code_builder} $out/hosted/pub.dartlang.org/code_builder-4.3.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${collection} $out/hosted/pub.dartlang.org/collection-1.17.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${convert} $out/hosted/pub.dartlang.org/convert-3.1.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${coverage} $out/hosted/pub.dartlang.org/coverage-1.6.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${crypto} $out/hosted/pub.dartlang.org/crypto-3.0.2
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${cryptography} $out/hosted/pub.dartlang.org/cryptography-2.0.5
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${dart_style} $out/hosted/pub.dartlang.org/dart_style-2.2.4
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${file} $out/hosted/pub.dartlang.org/file-6.1.4
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${fixnum} $out/hosted/pub.dartlang.org/fixnum-1.0.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${freezed} $out/hosted/pub.dartlang.org/freezed-2.1.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${freezed_annotation} $out/hosted/pub.dartlang.org/freezed_annotation-2.1.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${frontend_server_client} $out/hosted/pub.dartlang.org/frontend_server_client-3.1.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${glob} $out/hosted/pub.dartlang.org/glob-2.1.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${graphs} $out/hosted/pub.dartlang.org/graphs-2.2.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${hex} $out/hosted/pub.dartlang.org/hex-0.2.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${http_multi_server} $out/hosted/pub.dartlang.org/http_multi_server-3.2.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${http_parser} $out/hosted/pub.dartlang.org/http_parser-4.0.2
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${io} $out/hosted/pub.dartlang.org/io-1.0.3
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${js} $out/hosted/pub.dartlang.org/js-0.6.5
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${json_annotation} $out/hosted/pub.dartlang.org/json_annotation-4.7.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${json_serializable} $out/hosted/pub.dartlang.org/json_serializable-6.5.4
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${logging} $out/hosted/pub.dartlang.org/logging-1.0.2
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${matcher} $out/hosted/pub.dartlang.org/matcher-0.12.13
+
+    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
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${node_preamble} $out/hosted/pub.dartlang.org/node_preamble-2.0.1
+
+    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
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${package_config} $out/hosted/pub.dartlang.org/package_config-2.1.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${path} $out/hosted/pub.dartlang.org/path-1.8.2
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${pedantic} $out/hosted/pub.dartlang.org/pedantic-1.11.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${petitparser} $out/hosted/pub.dartlang.org/petitparser-5.1.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${pinenacl} $out/hosted/pub.dartlang.org/pinenacl-0.5.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${pool} $out/hosted/pub.dartlang.org/pool-1.5.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${pub_semver} $out/hosted/pub.dartlang.org/pub_semver-2.1.2
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${pubspec_parse} $out/hosted/pub.dartlang.org/pubspec_parse-1.2.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${random_string} $out/hosted/pub.dartlang.org/random_string-2.3.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${saslprep} $out/hosted/pub.dartlang.org/saslprep-1.0.2
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${shelf} $out/hosted/pub.dartlang.org/shelf-1.4.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${shelf_packages_handler} $out/hosted/pub.dartlang.org/shelf_packages_handler-3.0.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${shelf_static} $out/hosted/pub.dartlang.org/shelf_static-1.1.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${shelf_web_socket} $out/hosted/pub.dartlang.org/shelf_web_socket-1.0.3
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${source_gen} $out/hosted/pub.dartlang.org/source_gen-1.2.6
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${source_helper} $out/hosted/pub.dartlang.org/source_helper-1.3.3
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${source_map_stack_trace} $out/hosted/pub.dartlang.org/source_map_stack_trace-2.1.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${source_maps} $out/hosted/pub.dartlang.org/source_maps-0.10.11
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${source_span} $out/hosted/pub.dartlang.org/source_span-1.9.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${stack_trace} $out/hosted/pub.dartlang.org/stack_trace-1.11.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${stream_channel} $out/hosted/pub.dartlang.org/stream_channel-2.1.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${stream_transform} $out/hosted/pub.dartlang.org/stream_transform-2.1.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${string_scanner} $out/hosted/pub.dartlang.org/string_scanner-1.2.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${synchronized} $out/hosted/pub.dartlang.org/synchronized-3.0.0+2
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${term_glyph} $out/hosted/pub.dartlang.org/term_glyph-1.2.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${test} $out/hosted/pub.dartlang.org/test-1.22.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${test_api} $out/hosted/pub.dartlang.org/test_api-0.4.16
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${test_core} $out/hosted/pub.dartlang.org/test_core-0.4.20
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${timing} $out/hosted/pub.dartlang.org/timing-1.0.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${typed_data} $out/hosted/pub.dartlang.org/typed_data-1.3.1
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${unorm_dart} $out/hosted/pub.dartlang.org/unorm_dart-0.2.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${uuid} $out/hosted/pub.dartlang.org/uuid-3.0.5
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${very_good_analysis} $out/hosted/pub.dartlang.org/very_good_analysis-3.1.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${vm_service} $out/hosted/pub.dartlang.org/vm_service-9.4.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${watcher} $out/hosted/pub.dartlang.org/watcher-1.0.2
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${web_socket_channel} $out/hosted/pub.dartlang.org/web_socket_channel-2.2.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${webkit_inspection_protocol} $out/hosted/pub.dartlang.org/webkit_inspection_protocol-1.2.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${xml} $out/hosted/pub.dartlang.org/xml-6.2.0
+
+    mkdir -p $out/hosted/pub.dartlang.org
+    ln -s ${yaml} $out/hosted/pub.dartlang.org/yaml-3.1.1
+'';
+
+}

packages/moxxmpp/.pubignore

@@ -0,0 +1 @@
+pubspec_overrides.yaml

packages/moxxmpp/CHANGELOG.md

@@ -1,3 +1,73 @@
+## 0.4.0
+
+- **BREAKING**: Remove `lastResource` from `XmppConnection`'s `connect` method. Instead, set the `StreamManagementNegotiator`'s `resource` attribute instead. Since the resource can only really be restored by stream management, this is no issue.
+- **BREAKING**: Changed order of parameters of `CryptographicHashManager.hashFromData`
+- **BREAKING**: Removed support for XEP-0414, as the (supported) hash computations are already implemented by `CryptographicHashManager.hashFromData`.
+- The `DiscoManager` now only handled entity capabilities if a `EntityCapabilityManager` is registered.
+- The `EntityCapabilityManager` now verifies and validates its data before caching.
+- **BREAKING**: Added the `resumed` parameter to `StreamNegotiationsDoneEvent`. Use this to check if the current stream is new or resumed instead of using the `ConnectionStateChangedEvent`.
+- **BREAKING**: Remove `DiscoManager.discoInfoCapHashQuery`.
+- **BREAKING**: The entity argument of `DiscoManager.discoInfoQuery` and `DiscoManager.discoItemsQuery` are now `JID` instead of `String`.
+- **BREAKING**: `PubSubManager` and `UserAvatarManager` now use `JID` instead of `String`.
+- **BREAKING**: `XmppConnection.sendStanza` not only takes a `StanzaDetails` argument.
+- Sent stanzas are now kept in a queue until sent.
+- **BREAKING**: `MessageManager.sendMessage` does not use `MessageDetails` anymore. Instead, use `TypedMap`.
+- `MessageManager` now allows registering callbacks for adding data whenever a message is sent.
+- **BREAKING**: `MessageEvent` now makes use of `TypedMap`.
+- **BREAKING**: Removed `PresenceReceivedEvent`. Use a manager registering handlers with priority greater than `[PresenceManager.presenceHandlerPriority]` instead.
+- **BREAKING**: `ChatState.toString()` is now `ChatState.toName()`
+
+## 0.3.1
+
+- Fix some issues with running moxxmpp as a component
+
+## 0.3.0
+
+- **BREAKING**: Removed `connectAwaitable` and merged it with `connect`.
+- **BREAKING**: Removed `allowPlainAuth` from `ConnectionSettings`. If you don't want to use SASL PLAIN, don't register the negotiator. If you want to only conditionally use SASL PLAIN, extend the `SaslPlainNegotiator` and override its `matchesFeature` method to only call the super method when SASL PLAIN should be used.
+- **BREAKING**: The user avatar's `subscribe` and `unsubscribe` no longer subscribe to the `:data` PubSub nodes
+- Renamed `ResourceBindingSuccessEvent` to `ResourceBoundEvent`
+- **BREAKING**: Removed `isFeatureSupported` from the manager attributes. The managers now all have a method `isFeatureSupported` that works the same
+- The `PresenceManager` is now optional
+- **BREAKING**: Removed `setConnectionSettings` and `getConnectionSettings`. Just directly acces the `connectionSettings` field.
+- Implement XEP-0114 for implementing components
+- **BREAKING**: Remove `useDirectTLS` from `ConnectionSettings`
+
+## 0.1.6+1
+
+ - **FIX**: Fix LMC not working.
+
+## 0.1.6
+
+ - **FEAT**: Implement XEP-0308.
+
+## 0.1.5
+
+ - **FEAT**: Message events now contain the stanza error, if available.
+
+## 0.1.4
+
+ - **FIX**: Only stanza-id required 'sid:0' support.
+ - **FEAT**: Implement parsing and sending of retractions.
+
+## 0.1.3+1
+
+ - **FIX**: Expose the error classes.
+
+## 0.1.3
+
+ - **REFACTOR**: Replace MayFail by Result.
+ - **FIX**: Remove the old Results API.
+ - **FEAT**: Rework how the negotiator system works.
+
+## 0.1.2+3
+
+ - **FIX**: SASL SCRAM-SHA-{256,512} should now work.
+
+## 0.1.2+2
+
+ - **FIX**: Fix reconnections when the connection is awaited.
+
 ## 0.1.2+1
 
  - **FIX**: A certificate rejection does not crash the connection.

packages/moxxmpp/README.md

@@ -2,6 +2,24 @@
 
 A pure-Dart XMPP library written for Moxxy.
 
+## Usage
+
+Include the following as a dependency in your pubspec file:
+
+```
+ moxxmpp:
+    hosted: https://git.polynom.me/api/packages/Moxxy/pub
+    version: 0.3.1
+```
+
+You can find the documentation [here](https://moxxy.org/developers/docs/moxxmpp/).
+
 ## License
 
 See `./LICENSE`.
+
+## Support
+
+If you like what I do and you want to support me, feel free to donate to me on Ko-Fi.
+
+[<img src="https://codeberg.org/moxxy/moxxyv2/raw/branch/master/assets/repo/kofi.png" height="36" style="height: 36px; border: 0px;"></img>](https://ko-fi.com/papatutuwawa)

packages/moxxmpp/lib/moxxmpp.dart

@@ -1,7 +1,13 @@
 library moxxmpp;
 
 export 'package:moxxmpp/src/connection.dart';
+export 'package:moxxmpp/src/connection_errors.dart';
+export 'package:moxxmpp/src/connectivity.dart';
+export 'package:moxxmpp/src/errors.dart';
 export 'package:moxxmpp/src/events.dart';
+export 'package:moxxmpp/src/handlers/base.dart';
+export 'package:moxxmpp/src/handlers/client.dart';
+export 'package:moxxmpp/src/handlers/component.dart';
 export 'package:moxxmpp/src/iq.dart';
 export 'package:moxxmpp/src/jid.dart';
 export 'package:moxxmpp/src/managers/attributes.dart';
@@ -12,27 +18,30 @@ export 'package:moxxmpp/src/managers/namespaces.dart';
 export 'package:moxxmpp/src/managers/priorities.dart';
 export 'package:moxxmpp/src/message.dart';
 export 'package:moxxmpp/src/namespaces.dart';
-export 'package:moxxmpp/src/negotiators/manager.dart';
 export 'package:moxxmpp/src/negotiators/namespaces.dart';
 export 'package:moxxmpp/src/negotiators/negotiator.dart';
-export 'package:moxxmpp/src/negotiators/resource_binding.dart';
-export 'package:moxxmpp/src/negotiators/sasl/negotiator.dart';
-export 'package:moxxmpp/src/negotiators/sasl/plain.dart';
-export 'package:moxxmpp/src/negotiators/sasl/scram.dart';
-export 'package:moxxmpp/src/negotiators/starttls.dart';
 export 'package:moxxmpp/src/ping.dart';
 export 'package:moxxmpp/src/presence.dart';
 export 'package:moxxmpp/src/reconnect.dart';
 export 'package:moxxmpp/src/rfcs/rfc_2782.dart';
 export 'package:moxxmpp/src/rfcs/rfc_4790.dart';
-export 'package:moxxmpp/src/roster.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/resource_binding.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/sasl/errors.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/sasl/negotiator.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/sasl/plain.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/sasl/scram.dart';
+export 'package:moxxmpp/src/rfcs/rfc_6120/starttls.dart';
+export 'package:moxxmpp/src/roster/errors.dart';
+export 'package:moxxmpp/src/roster/roster.dart';
+export 'package:moxxmpp/src/roster/state.dart';
 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/error.dart';
+export 'package:moxxmpp/src/types/result.dart';
-export 'package:moxxmpp/src/types/resultv2.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';
@@ -57,11 +66,13 @@ export 'package:moxxmpp/src/xeps/xep_0203.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';
+export 'package:moxxmpp/src/xeps/xep_0308.dart';
 export 'package:moxxmpp/src/xeps/xep_0333.dart';
 export 'package:moxxmpp/src/xeps/xep_0334.dart';
 export 'package:moxxmpp/src/xeps/xep_0352.dart';
 export 'package:moxxmpp/src/xeps/xep_0359.dart';
-export 'package:moxxmpp/src/xeps/xep_0363.dart';
+export 'package:moxxmpp/src/xeps/xep_0363/errors.dart';
+export 'package:moxxmpp/src/xeps/xep_0363/xep_0363.dart';
 export 'package:moxxmpp/src/xeps/xep_0380.dart';
 export 'package:moxxmpp/src/xeps/xep_0384/crypto.dart';
 export 'package:moxxmpp/src/xeps/xep_0384/errors.dart';
@@ -69,8 +80,15 @@ export 'package:moxxmpp/src/xeps/xep_0384/helpers.dart';
 export 'package:moxxmpp/src/xeps/xep_0384/types.dart';
 export 'package:moxxmpp/src/xeps/xep_0384/xep_0384.dart';
 export 'package:moxxmpp/src/xeps/xep_0385.dart';
-export 'package:moxxmpp/src/xeps/xep_0414.dart';
+export 'package:moxxmpp/src/xeps/xep_0386.dart';
+export 'package:moxxmpp/src/xeps/xep_0388/errors.dart';
+export 'package:moxxmpp/src/xeps/xep_0388/negotiators.dart';
+export 'package:moxxmpp/src/xeps/xep_0388/user_agent.dart';
+export 'package:moxxmpp/src/xeps/xep_0388/xep_0388.dart';
+export 'package:moxxmpp/src/xeps/xep_0424.dart';
+export 'package:moxxmpp/src/xeps/xep_0444.dart';
 export 'package:moxxmpp/src/xeps/xep_0446.dart';
 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';

packages/moxxmpp/lib/src/awaiter.dart

@@ -0,0 +1,94 @@
+import 'dart:async';
+import 'package:meta/meta.dart';
+import 'package:moxxmpp/src/jid.dart';
+import 'package:moxxmpp/src/stringxml.dart';
+import 'package:synchronized/synchronized.dart';
+
+/// A surrogate key for awaiting stanzas.
+@immutable
+class _StanzaSurrogateKey {
+  const _StanzaSurrogateKey(this.sentTo, this.id, this.tag);
+
+  /// The JID the original stanza was sent to. We expect the result to come from the
+  /// same JID.
+  final String sentTo;
+
+  /// The ID of the original stanza. We expect the result to have the same ID.
+  final String id;
+
+  /// The tag name of the stanza.
+  final String tag;
+
+  @override
+  int get hashCode => sentTo.hashCode ^ id.hashCode ^ tag.hashCode;
+
+  @override
+  bool operator ==(Object other) {
+    return other is _StanzaSurrogateKey &&
+        other.sentTo == sentTo &&
+        other.id == id &&
+        other.tag == tag;
+  }
+}
+
+/// 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.
+///
+/// That means that when sending ```<iq to="example@some.server.example" id="abc123" />```,
+/// the response stanza must be from "example@some.server.example", have id "abc123" and
+/// be an iq stanza.
+///
+/// This class also handles some "edge cases" of RFC 6120, like an empty "from" attribute.
+class StanzaAwaiter {
+  /// The pending stanzas, identified by their surrogate key.
+  final Map<_StanzaSurrogateKey, Completer<XMLNode>> _pending = {};
+
+  /// The critical section for accessing [StanzaAwaiter._pending].
+  final Lock _lock = Lock();
+
+  /// Register a stanza as pending.
+  /// [to] is the value of the stanza's "to" attribute.
+  /// [id] is the value of the stanza's "id" attribute.
+  /// [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 {
+    final completer = await _lock.synchronized(() {
+      final completer = Completer<XMLNode>();
+      _pending[_StanzaSurrogateKey(to, id, tag)] = completer;
+      return completer;
+    });
+
+    return completer.future;
+  }
+
+  /// Checks if the stanza [stanza] is being awaited. [bareJid] is the bare JID of
+  /// the connection.
+  /// If [stanza] is awaited, resolves the future and returns true. If not, returns
+  /// false.
+  Future<bool> onData(XMLNode stanza, JID bareJid) async {
+    assert(bareJid.isBare(), 'bareJid must be bare');
+
+    final id = stanza.attributes['id'] as String?;
+    if (id == null) return false;
+
+    final key = _StanzaSurrogateKey(
+      // Section 8.1.2.1 § 3 of RFC 6120 says that an empty "from" indicates that the
+      // attribute is implicitly from our own bare JID.
+      stanza.attributes['from'] as String? ?? bareJid.toString(),
+      id,
+      stanza.tag,
+    );
+
+    return _lock.synchronized(() {
+      final completer = _pending[key];
+      if (completer != null) {
+        _pending.remove(key);
+        completer.complete(stanza);
+        return true;
+      }
+
+      return false;
+    });
+  }
+}

packages/moxxmpp/lib/src/buffer.dart

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

packages/moxxmpp/lib/src/connection_errors.dart

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

packages/moxxmpp/lib/src/connectivity.dart

@@ -0,0 +1,18 @@
+/// This manager class is responsible to tell the moxxmpp XmppConnection
+/// when a connection can be established or not, regarding the network availability.
+abstract class ConnectivityManager {
+  /// Returns true if a network connection is available. If not, returns false.
+  Future<bool> hasConnection();
+
+  /// Returns a future that resolves once we have a network connection.
+  Future<void> waitForConnection();
+}
+
+/// An implementation of [ConnectivityManager] that is always connected.
+class AlwaysConnectedConnectivityManager extends ConnectivityManager {
+  @override
+  Future<bool> hasConnection() async => true;
+
+  @override
+  Future<void> waitForConnection() async {}
+}

packages/moxxmpp/lib/src/errors.dart

@@ -0,0 +1,30 @@
+import 'package:moxxmpp/src/socket.dart';
+
+/// An internal error class
+// ignore: one_member_abstracts
+abstract class XmppError {
+  /// Return true if we can recover from the error by attempting a reconnection.
+  bool isRecoverable();
+}
+
+/// Returned if a socket error occured
+class SocketError extends XmppError {
+  SocketError(this.event);
+  final XmppSocketErrorEvent event;
+
+  @override
+  bool isRecoverable() => true;
+}
+
+/// Returned if we time out
+class TimeoutError extends XmppError {
+  @override
+  bool isRecoverable() => true;
+}
+
+/// Returned if we received a stream error
+class StreamError extends XmppError {
+  // TODO(PapaTutuWawa): Be more precise
+  @override
+  bool isRecoverable() => true;
+}

packages/moxxmpp/lib/src/events.dart

@@ -1,31 +1,34 @@
 import 'package:moxxmpp/src/connection.dart';
+import 'package:moxxmpp/src/errors.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/data.dart';
+import 'package:moxxmpp/src/roster/roster.dart';
 import 'package:moxxmpp/src/stanza.dart';
+import 'package:moxxmpp/src/util/typed_map.dart';
 import 'package:moxxmpp/src/xeps/xep_0030/types.dart';
 import 'package:moxxmpp/src/xeps/xep_0060/xep_0060.dart';
-import 'package:moxxmpp/src/xeps/xep_0066.dart';
+import 'package:moxxmpp/src/xeps/xep_0084.dart';
-import 'package:moxxmpp/src/xeps/xep_0085.dart';
+import 'package:moxxmpp/src/xeps/xep_0333.dart';
-import 'package:moxxmpp/src/xeps/xep_0359.dart';
-import 'package:moxxmpp/src/xeps/xep_0385.dart';
-import 'package:moxxmpp/src/xeps/xep_0446.dart';
-import 'package:moxxmpp/src/xeps/xep_0447.dart';
-import 'package:moxxmpp/src/xeps/xep_0461.dart';
 
 abstract class XmppEvent {}
 
 /// Triggered when the connection state of the XmppConnection has
 /// changed.
 class ConnectionStateChangedEvent extends XmppEvent {
-  ConnectionStateChangedEvent(this.state, this.before, this.resumed);
+  ConnectionStateChangedEvent(this.state, this.before);
   final XmppConnectionState before;
   final XmppConnectionState state;
-  final bool resumed;
+
+  /// Indicates whether the connection state switched from a not connected state to a
+  /// connected state.
+  bool get connectionEstablished =>
+      before != XmppConnectionState.connected &&
+      state == XmppConnectionState.connected;
 }
 
 /// Triggered when we encounter a stream error.
 class StreamErrorEvent extends XmppEvent {
-  StreamErrorEvent({ required this.error });
+  StreamErrorEvent({required this.error});
   final String error;
 }
 
@@ -38,85 +41,100 @@ class AuthenticationFailedEvent extends XmppEvent {
 /// Triggered after the SASL authentication has succeeded.
 class AuthenticationSuccessEvent extends XmppEvent {}
 
-/// Triggered when we want to ping the connection open
-class SendPingEvent extends XmppEvent {}
-
 /// Triggered when the stream resumption was successful
 class StreamResumedEvent extends XmppEvent {
-  StreamResumedEvent({ required this.h });
+  StreamResumedEvent({required this.h});
   final int h;
 }
 
 /// Triggered when stream resumption failed
 class StreamResumeFailedEvent extends XmppEvent {}
 
+/// Triggered when the roster has been modified
+class RosterUpdatedEvent extends XmppEvent {
+  RosterUpdatedEvent(this.removed, this.modified, this.added);
+
+  /// A list of bare JIDs that are removed from the roster
+  final List<String> removed;
+
+  /// A list of XmppRosterItems that are modified. Can be correlated with one's cache
+  /// using the jid attribute.
+  final List<XmppRosterItem> modified;
+
+  /// A list of XmppRosterItems that are added to the roster.
+  final List<XmppRosterItem> added;
+}
+
+/// Triggered when a message is received
 class MessageEvent extends XmppEvent {
-  MessageEvent({
+  MessageEvent(
-    required this.body,
+    this.from,
-    required this.fromJid,
+    this.to,
-    required this.toJid,
+    this.id,
-    required this.sid,
+    this.encrypted,
-    required this.stanzaId,
+    this.extensions, {
-    required this.isCarbon,
-    required this.deliveryReceiptRequested,
-    required this.isMarkable,
-    required this.encrypted,
-    required this.other,
     this.type,
-    this.oob,
+    this.error,
-    this.sfs,
+    this.encryptionError,
-    this.sims,
-    this.reply,
-    this.chatState,
-    this.fun,
-    this.funReplacement,
-    this.funCancellation,
   });
-  final String body;
+
-  final JID fromJid;
+  /// The from attribute of the message.
-  final JID toJid;
+  final JID from;
-  final String sid;
+
+  /// The to attribute of the message.
+  final JID to;
+
+  /// The id attribute of the message.
+  final String id;
+
+  /// The type attribute of the message.
   final String? type;
-  final StableStanzaId stanzaId;
+
-  final bool isCarbon;
+  final StanzaError? error;
-  final bool deliveryReceiptRequested;
+
-  final bool isMarkable;
+  /// Flag indicating whether the message was encrypted.
-  final OOBData? oob;
-  final StatelessFileSharingData? sfs;
-  final StatelessMediaSharingData? sims;
-  final ReplyData? reply;
-  final ChatState? chatState;
-  final FileMetadataData? fun;
-  final String? funReplacement;
-  final String? funCancellation;
   final bool encrypted;
-  final Map<String, dynamic> other;
+
+  /// The error in case an encryption error occurred.
+  final Object? encryptionError;
+
+  /// Data added by other handlers.
+  final TypedMap<StanzaHandlerExtension> extensions;
+
+  /// Shorthand for extensions.get<T>().
+  T? get<T>() => extensions.get<T>();
 }
 
 /// Triggered when a client responds to our delivery receipt request
 class DeliveryReceiptReceivedEvent extends XmppEvent {
-  DeliveryReceiptReceivedEvent({ required this.from, required this.id });
+  DeliveryReceiptReceivedEvent({required this.from, required this.id});
   final JID from;
   final String id;
 }
 
 class ChatMarkerEvent extends XmppEvent {
-  ChatMarkerEvent({
+  ChatMarkerEvent(
-    required this.type,
+    this.from,
-    required this.from,
+    this.type,
-    required this.id,
+    this.id,
-  });
+  );
+
+  /// The entity that sent the chat marker.
   final JID from;
-  final String type;
+
+  /// The type of chat marker that was sent.
+  final ChatMarker type;
+
+  /// The id of the message that the marker applies to.
   final String id;
 }
 
 // Triggered when we received a Stream resumption ID
 class StreamManagementEnabledEvent extends XmppEvent {
   StreamManagementEnabledEvent({
-      required this.resource,
+    required this.resource,
-      this.id,
+    this.id,
-      this.location,
+    this.location,
   });
   final String resource;
   final String? id;
@@ -124,16 +142,11 @@ class StreamManagementEnabledEvent extends XmppEvent {
 }
 
 /// Triggered when we bound a resource
-class ResourceBindingSuccessEvent extends XmppEvent {
+class ResourceBoundEvent extends XmppEvent {
-  ResourceBindingSuccessEvent({ required this.resource });
+  ResourceBoundEvent(this.resource);
-  final String resource;
-}
 
-/// Triggered when we receive presence
+  /// The resource that was just bound.
-class PresenceReceivedEvent extends XmppEvent {
+  final String resource;
-  PresenceReceivedEvent(this.jid, this.presence);
-  final JID jid;
-  final Stanza presence;
 }
 
 /// Triggered when we are starting an connection attempt
@@ -149,21 +162,45 @@ class ServerItemDiscoEvent extends XmppEvent {
 
 /// Triggered when we receive a subscription request
 class SubscriptionRequestReceivedEvent extends XmppEvent {
-  SubscriptionRequestReceivedEvent({ required this.from });
+  SubscriptionRequestReceivedEvent({required this.from});
   final JID from;
 }
 
-/// Triggered when we receive a new or updated avatar
+/// Triggered when we receive a new or updated avatar via XEP-0084
-class AvatarUpdatedEvent extends XmppEvent {
+class UserAvatarUpdatedEvent extends XmppEvent {
-  AvatarUpdatedEvent({ required this.jid, required this.base64, required this.hash });
+  UserAvatarUpdatedEvent(
-  final String jid;
+    this.jid,
+    this.metadata,
+  );
+
+  /// The JID of the user updating their avatar.
+  final JID jid;
+
+  /// The metadata of the avatar.
+  final List<UserAvatarMetadata> metadata;
+}
+
+/// Triggered when we receive a new or updated avatar via XEP-0054
+class VCardAvatarUpdatedEvent extends XmppEvent {
+  VCardAvatarUpdatedEvent(
+    this.jid,
+    this.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;
 }
 
 /// Triggered when a PubSub notification has been received
 class PubSubNotificationEvent extends XmppEvent {
-  PubSubNotificationEvent({ required this.item, required this.from });
+  PubSubNotificationEvent({required this.item, required this.from});
   final PubSubItem item;
   final String from;
 }
@@ -176,13 +213,13 @@ class StanzaAckedEvent extends XmppEvent {
 
 /// Triggered when receiving a push of the blocklist
 class BlocklistBlockPushEvent extends XmppEvent {
-  BlocklistBlockPushEvent({ required this.items });
+  BlocklistBlockPushEvent({required this.items});
   final List<String> items;
 }
 
 /// Triggered when receiving a push of the blocklist
 class BlocklistUnblockPushEvent extends XmppEvent {
-  BlocklistUnblockPushEvent({ required this.items });
+  BlocklistUnblockPushEvent({required this.items});
   final List<String> items;
 }
 
@@ -204,3 +241,21 @@ class OmemoDeviceListUpdatedEvent extends XmppEvent {
   final JID jid;
   final List<int> deviceList;
 }
+
+/// Triggered when a reconnection is not performed due to a non-recoverable
+/// error.
+class NonRecoverableErrorEvent extends XmppEvent {
+  NonRecoverableErrorEvent(this.error);
+
+  /// The error in question.
+  final XmppError error;
+}
+
+/// Triggered when the stream negotiations are done.
+class StreamNegotiationsDoneEvent extends XmppEvent {
+  StreamNegotiationsDoneEvent(this.resumed);
+
+  /// Flag indicating whether we resumed a previous stream (true) or are in a completely
+  /// new stream (false).
+  final bool resumed;
+}

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

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

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

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

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

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

packages/moxxmpp/lib/src/iq.dart

@@ -1,10 +1,33 @@
 import 'package:moxxmpp/src/connection.dart';
+import 'package:moxxmpp/src/managers/data.dart';
 import 'package:moxxmpp/src/stanza.dart';
 
-bool handleUnhandledStanza(XmppConnection conn, Stanza stanza) {
+/// Bounce a stanza if it was not handled by any manager. [conn] is the connection object
-  if (stanza.type != 'error' && stanza.type != 'result') {
+/// to use for sending the stanza. [data] is the StanzaHandlerData of the unhandled
-    conn.sendStanza(stanza.errorReply('cancel', 'feature-not-implemented'));
+/// stanza.
-  }
+Future<void> handleUnhandledStanza(
+  XmppConnection conn,
+  StanzaHandlerData data,
+) async {
+  if (data.stanza.type != 'error' && data.stanza.type != 'result') {
+    final stanza = data.stanza.copyWith(
+      to: data.stanza.from,
+      from: data.stanza.to,
+      type: 'error',
+      children: [
+        buildErrorElement(
+          'cancel',
+          'feature-not-implemented',
+        ),
+      ],
+    );
 
-  return true;
+    await conn.sendStanza(
+      StanzaDetails(
+        stanza,
+        awaitable: false,
+        forceEncryption: data.encrypted,
+      ),
+    );
+  }
 }

packages/moxxmpp/lib/src/jid.dart

@@ -1,83 +1,84 @@
 import 'package:meta/meta.dart';
 
+/// Represents a Jabber ID in parsed form.
 @immutable
 class JID {
-
   const JID(this.local, this.domain, this.resource);
 
+  /// Parses the string [jid] into a JID instance.
   factory JID.fromString(String jid) {
-    // 0: Parsing either the local or domain part
+    // Algorithm taken from here: https://blog.samwhited.com/2021/02/xmpp-addresses/
-    // 1: Parsing the domain part
+    var localPart = '';
-    // 2: Parsing the resource
+    var domainPart = '';
-    var state = 0;
+    var resourcePart = '';
-    var buffer = '';
-    var local_ = '';
-    var domain_ = '';
-    var resource_ = '';
 
-    for (var i = 0; i < jid.length; i++) {
+    final slashParts = jid.split('/');
-      final c = jid[i];
+    if (slashParts.length == 1) {
-      final eol = i == jid.length - 1;
+      resourcePart = '';
+    } else {
+      resourcePart = slashParts.sublist(1).join('/');
 
-      switch (state) {
+      assert(
-        case 0: {
+        resourcePart.isNotEmpty,
-          if (c == '@') {
+        'Resource part cannot be there and empty',
-            local_ = buffer;
+      );
-            buffer = '';
-            state = 1;
-          } else if (c == '/') {
-            domain_ = buffer;
-            buffer = '';
-            state = 2;
-          } else if (eol) {
-            domain_ = buffer + c;
-          } else {
-            buffer += c;
-          }
-        }
-        break;
-        case 1: {
-          if (c == '/') {
-            domain_ = buffer;
-            buffer = '';
-            state = 2;
-          } else if (eol) {
-            domain_ = buffer;
-
-            if (c != ' ') {
-              domain_ = domain_ + c;
-            }
-          } else if (c != ' ') {
-            buffer += c;
-          }
-        }
-        break;
-        case 2: {
-          if (eol) {
-            resource_ = buffer;
-
-            if (c != ' ') {
-              resource_ = resource_ + c;
-            }
-          } else if (c != ''){
-            buffer += c;
-          }
-        }
-      }
     }
 
-    return JID(local_, domain_, resource_);
+    final atParts = slashParts.first.split('@');
+    if (atParts.length == 1) {
+      localPart = '';
+      domainPart = atParts.first;
+    } else {
+      localPart = atParts.first;
+      domainPart = atParts.sublist(1).join('@');
+
+      assert(localPart.isNotEmpty, 'Local part cannot be there and empty');
+    }
+
+    return JID(
+      localPart,
+      domainPart.endsWith('.')
+          ? domainPart.substring(0, domainPart.length - 1)
+          : domainPart,
+      resourcePart,
+    );
   }
   final String local;
   final String domain;
   final String resource;
 
+  /// Returns true if the JID is bare.
   bool isBare() => resource.isEmpty;
+
+  /// Returns true if the JID is full.
   bool isFull() => resource.isNotEmpty;
 
-  JID toBare() => JID(local, domain, '');
+  /// Converts the JID into a bare JID.
+  JID toBare() {
+    if (isBare()) return this;
+
+    return JID(local, domain, '');
+  }
+
+  /// Converts the JID into one with a resource part of [resource].
   JID withResource(String resource) => JID(local, domain, resource);
 
+  /// Convert the JID into the JID of the domain. For example, converts alice@example.org/abc123 to example.org.
+  JID toDomain() {
+    return JID('', domain, '');
+  }
+
+  /// Compares the JID with [other]. This function assumes that JID and [other]
+  /// are bare, i.e. only the domain- and localparts are compared. If [ensureBare]
+  /// is optionally set to true, then [other] MUST be bare. Otherwise, false is returned.
+  bool bareCompare(JID other, {bool ensureBare = false}) {
+    if (ensureBare && !other.isBare()) return false;
+
+    return local == other.local && domain == other.domain;
+  }
+
+  /// Converts to JID instance into its string representation of
+  /// localpart@domainpart/resource.
   @override
   String toString() {
     var result = '';
@@ -97,7 +98,9 @@ class JID {
   @override
   bool operator ==(Object other) {
     if (other is JID) {
-      return other.local == local && other.domain == domain && other.resource == resource;
+      return other.local == local &&
+          other.domain == domain &&
+          other.resource == resource;
     }
 
     return false;

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

@@ -1,5 +1,4 @@
 import 'dart:async';
-
 import 'package:moxxmpp/src/connection.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
@@ -11,21 +10,20 @@ import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
 
 class XmppManagerAttributes {
-  
   XmppManagerAttributes({
     required this.sendStanza,
     required this.sendNonza,
     required this.getManagerById,
     required this.sendEvent,
     required this.getConnectionSettings,
-    required this.isFeatureSupported,
     required this.getFullJID,
     required this.getSocket,
     required this.getConnection,
     required this.getNegotiatorById,
   });
+
   /// Send a stanza whose response can be awaited.
-  final Future<XMLNode> Function(Stanza stanza, { StanzaFromType addFrom, bool addId, bool awaitable, bool encrypted}) sendStanza;
+  final Future<XMLNode?> Function(StanzaDetails) sendStanza;
 
   /// Send a nonza.
   final void Function(XMLNode) sendNonza;
@@ -39,9 +37,6 @@ class XmppManagerAttributes {
   /// (Maybe) Get a Manager attached to the connection by its Id.
   final T? Function<T extends XmppManagerBase>(String) getManagerById;
 
-  /// Returns true if a server feature is supported
-  final bool Function(String) isFeatureSupported;
-  
   /// Returns the full JID of the current account
   final JID Function() getFullJID;
 
@@ -51,5 +46,6 @@ class XmppManagerAttributes {
   /// Return the [XmppConnection] the manager is registered against.
   final XmppConnection Function() getConnection;
 
-  final T? Function<T extends XmppFeatureNegotiatorBase>(String) getNegotiatorById;
+  final T? Function<T extends XmppFeatureNegotiatorBase>(String)
+      getNegotiatorById;
 }

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

@@ -1,17 +1,30 @@
 import 'package:logging/logging.dart';
+import 'package:meta/meta.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/managers/attributes.dart';
+import 'package:moxxmpp/src/managers/data.dart';
 import 'package:moxxmpp/src/managers/handlers.dart';
+import 'package:moxxmpp/src/managers/namespaces.dart';
+import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
+import 'package:moxxmpp/src/xeps/xep_0030/errors.dart';
+import 'package:moxxmpp/src/xeps/xep_0030/types.dart';
+import 'package:moxxmpp/src/xeps/xep_0030/xep_0030.dart';
+import 'package:moxxmpp/src/xeps/xep_0198/xep_0198.dart';
 
 abstract class XmppManagerBase {
+  XmppManagerBase(this.id);
+
   late final XmppManagerAttributes _managerAttributes;
   late final Logger _log;
 
+  /// Flag indicating that the post registration callback has been called once.
+  bool initialized = false;
+
   /// Registers the callbacks from XmppConnection with the manager
   void register(XmppManagerAttributes attributes) {
     _managerAttributes = attributes;
-    _log = Logger(getName());
+    _log = Logger(name);
   }
 
   /// Returns the attributes that are registered with the manager.
@@ -20,29 +33,65 @@ abstract class XmppManagerBase {
     return _managerAttributes;
   }
 
+  /// Resolves to true when the server supports the disco feature [xmlns]. Resolves
+  /// to false when either the disco request fails or the server does not
+  /// support [xmlns].
+  /// Note that this function requires a registered DiscoManager.
+  @protected
+  Future<bool> isFeatureSupported(String xmlns) async {
+    final dm = _managerAttributes.getManagerById<DiscoManager>(discoManager);
+    assert(
+      dm != null,
+      'The DiscoManager must be registered for isFeatureSupported to work',
+    );
+
+    final result = await dm!.discoInfoQuery(
+      _managerAttributes.getConnectionSettings().jid.toDomain(),
+      shouldEncrypt: false,
+    );
+    if (result.isType<DiscoError>()) {
+      return false;
+    }
+
+    return result.get<DiscoInfo>().features.contains(xmlns);
+  }
+
   /// Return the StanzaHandlers associated with this manager that deal with stanzas we
-  /// send. These are run before the stanza is sent.
+  /// send. These are run before the stanza is sent. The higher the value of the
+  /// handler's priority, the earlier it is run.
   List<StanzaHandler> getOutgoingPreStanzaHandlers() => [];
 
   /// Return the StanzaHandlers associated with this manager that deal with stanzas we
-  /// send. These are run after the stanza is sent.
+  /// send. These are run after the stanza is sent. The higher the value of the
+  /// handler's priority, the earlier it is run.
   List<StanzaHandler> getOutgoingPostStanzaHandlers() => [];
 
   /// Return the StanzaHandlers associated with this manager that deal with stanzas we
-  /// receive.
+  /// receive. The higher the value of the
+  /// handler's priority, the earlier it is run.
   List<StanzaHandler> getIncomingStanzaHandlers() => [];
 
-  /// Return the NonzaHandlers associated with this manager.
+  /// Return the StanzaHandlers associated with this manager that deal with stanza handlers
+  /// that have to run before the main ones run. This is useful, for example, for OMEMO
+  /// as we have to decrypt the stanza before we do anything else. The higher the value
+  /// of the handler's priority, the earlier it is run.
+  List<StanzaHandler> getIncomingPreStanzaHandlers() => [];
+
+  /// Return the NonzaHandlers associated with this manager. The higher the value of the
+  /// handler's priority, the earlier it is run.
   List<NonzaHandler> getNonzaHandlers() => [];
 
   /// Return a list of features that should be included in a disco response.
   List<String> getDiscoFeatures() => [];
 
-  /// Return the Id (akin to xmlns) of this manager.
+  /// Return a list of identities that should be included in a disco response.
-  String getId();
+  List<Identity> getDiscoIdentities() => [];
 
-  /// Return a name that will be used for logging.
+  /// Return the Id (akin to xmlns) of this manager.
-  String getName();
+  final String id;
+
+  /// The name of the manager.
+  String get name => toString();
 
   /// Return the logger for this manager.
   Logger get logger => _log;
@@ -53,20 +102,75 @@ abstract class XmppManagerBase {
   /// Returns true if the XEP is supported on the server. If not, returns false
   Future<bool> isSupported();
 
+  /// Called after the registration of all managers against the XmppConnection is done.
+  /// This method is only called once during the entire lifetime of it.
+  @mustCallSuper
+  Future<void> postRegisterCallback() async {
+    initialized = true;
+
+    final disco = getAttributes().getManagerById<DiscoManager>(discoManager);
+    if (disco != null) {
+      if (getDiscoFeatures().isNotEmpty) {
+        disco.addFeatures(getDiscoFeatures());
+      }
+
+      if (getDiscoIdentities().isNotEmpty) {
+        disco.addIdentities(getDiscoIdentities());
+      }
+    }
+  }
+
   /// Runs all NonzaHandlers of this Manager which match the nonza. Resolves to true if
   /// the nonza has been handled by one of the handlers. Resolves to false otherwise.
   Future<bool> runNonzaHandlers(XMLNode nonza) async {
     var handled = false;
-    await Future.forEach(
+    await Future.forEach(getNonzaHandlers(), (NonzaHandler handler) async {
-      getNonzaHandlers(),
+      if (handler.matches(nonza)) {
-      (NonzaHandler handler) async {
+        handled = true;
-        if (handler.matches(nonza)) {
+        await handler.callback(nonza);
-          handled = true;
-          await handler.callback(nonza);
-        }
       }
-    );
+    });
 
     return handled;
   }
+
+  /// Returns true, if the current stream negotiations resulted in a new stream. Useful
+  /// for plugins to reset their cache in case of a new stream.
+  /// The value only makes sense after receiving a StreamNegotiationsDoneEvent.
+  Future<bool> isNewStream() async {
+    final sm =
+        getAttributes().getManagerById<StreamManagementManager>(smManager);
+
+    return sm?.streamResumed == false;
+  }
+
+  /// Sends a reply of the stanza in [data] with [type]. Replaces the original stanza's
+  /// children with [children].
+  ///
+  /// Note that this function currently only accepts IQ stanzas.
+  Future<void> reply(
+    StanzaHandlerData data,
+    String type,
+    List<XMLNode> children,
+  ) async {
+    assert(
+      data.stanza.tag == 'iq',
+      'Reply makes little sense for non-IQ stanzas',
+    );
+
+    final stanza = data.stanza.copyWith(
+      to: data.stanza.from,
+      from: data.stanza.to,
+      type: type,
+      children: children,
+    );
+
+    await getAttributes().sendStanza(
+      StanzaDetails(
+        stanza,
+        awaitable: false,
+        forceEncryption: data.encrypted,
+      ),
+    );
+  }
 }

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

@@ -1,60 +1,47 @@
-import 'package:freezed_annotation/freezed_annotation.dart';
 import 'package:moxxmpp/src/stanza.dart';
-import 'package:moxxmpp/src/xeps/xep_0066.dart';
+import 'package:moxxmpp/src/util/typed_map.dart';
-import 'package:moxxmpp/src/xeps/xep_0085.dart';
-import 'package:moxxmpp/src/xeps/xep_0203.dart';
-import 'package:moxxmpp/src/xeps/xep_0359.dart';
-import 'package:moxxmpp/src/xeps/xep_0380.dart';
-import 'package:moxxmpp/src/xeps/xep_0385.dart';
-import 'package:moxxmpp/src/xeps/xep_0446.dart';
-import 'package:moxxmpp/src/xeps/xep_0447.dart';
-import 'package:moxxmpp/src/xeps/xep_0461.dart';
 
-part 'data.freezed.dart';
+abstract class StanzaHandlerExtension {}
 
-@freezed
+class StanzaHandlerData {
-class StanzaHandlerData with _$StanzaHandlerData {
+  StanzaHandlerData(
-  factory StanzaHandlerData(
+    this.done,
-    // Indicates to the runner that processing is now done. This means that all
+    this.cancel,
-    // pre-processing is done and no other handlers should be consulted.
+    this.stanza,
-    bool done,
+    this.extensions, {
-    // Indicates to the runner that processing is to be cancelled and no further handlers
+    this.cancelReason,
-    // should run. The stanza also will not be sent.
+    this.encryptionError,
-    bool cancel,
+    this.encrypted = false,
-    // The reason why we cancelled the processing and sending
+    this.forceEncryption = false,
-    dynamic cancelReason,
+  });
-    // The stanza that is being dealt with. SHOULD NOT be overwritten, unless it is absolutely
+
-    // necessary, e.g. with Message Carbons or OMEMO
+  /// Indicates to the runner that processing is now done. This means that all
-    Stanza stanza,
+  /// pre-processing is done and no other handlers should be consulted.
-    {
+  bool done;
-      // Whether the stanza is retransmitted. Only useful in the context of outgoing
+
-      // stanza handlers. MUST NOT be overwritten.
+  /// Indicates to the runner that processing is to be cancelled and no further handlers
-      @Default(false) bool retransmitted,
+  /// should run. The stanza also will not be sent.
-      StatelessMediaSharingData? sims,
+  bool cancel;
-      StatelessFileSharingData? sfs,
+
-      OOBData? oob,
+  /// The reason why we cancelled the processing and sending.
-      StableStanzaId? stableId,
+  Object? cancelReason;
-      ReplyData? reply,
+
-      ChatState? chatState,
+  /// The reason why an encryption or decryption failed.
-      @Default(false) bool isCarbon,
+  Object? encryptionError;
-      @Default(false) bool deliveryReceiptRequested,
+
-      @Default(false) bool isMarkable,
+  /// The stanza that is being dealt with. SHOULD NOT be overwritten, unless it is
-      // File Upload Notifications
+  /// absolutely necessary, e.g. with Message Carbons or OMEMO.
-      // A notification
+  Stanza stanza;
-      FileMetadataData? fun,
+
-      // The stanza id this replaces
+  /// Whether the stanza was received encrypted
-      String? funReplacement,
+  bool encrypted;
-      // The stanza id this cancels
+
-      String? funCancellation,
+  // If true, forces the encryption manager to encrypt to the JID, even if it
-      // Whether the stanza was received encrypted
+  // would not normally. In the case of OMEMO: If shouldEncrypt returns false
-      @Default(false) bool encrypted,
+  // but forceEncryption is true, then the OMEMO manager will try to encrypt
-      // The stated type of encryption used, if any was used
+  // to the JID anyway.
-      ExplicitEncryptionType? encryptionType,
+  bool forceEncryption;
-      // Delayed Delivery
+
-      DelayedDelivery? delayedDelivery,
+  /// Additional data from other managers.
-      // This is for stanza handlers that are not part of the XMPP library but still need
+  final TypedMap<StanzaHandlerExtension> extensions;
-      // pass data around.
-      @Default(<String, dynamic>{}) Map<String, dynamic> other,
-    }
-  ) = _StanzaHandlerData;
 }

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

@@ -1,613 +0,0 @@
-// coverage:ignore-file
-// GENERATED CODE - DO NOT MODIFY BY HAND
-// ignore_for_file: type=lint
-// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
-
-part of 'data.dart';
-
-// **************************************************************************
-// FreezedGenerator
-// **************************************************************************
-
-T _$identity<T>(T value) => value;
-
-final _privateConstructorUsedError = UnsupportedError(
-    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
-
-/// @nodoc
-mixin _$StanzaHandlerData {
-// Indicates to the runner that processing is now done. This means that all
-// pre-processing is done and no other handlers should be consulted.
-  bool get done =>
-      throw _privateConstructorUsedError; // Indicates to the runner that processing is to be cancelled and no further handlers
-// should run. The stanza also will not be sent.
-  bool get cancel =>
-      throw _privateConstructorUsedError; // The reason why we cancelled the processing and sending
-  dynamic get cancelReason =>
-      throw _privateConstructorUsedError; // The stanza that is being dealt with. SHOULD NOT be overwritten, unless it is absolutely
-// necessary, e.g. with Message Carbons or OMEMO
-  Stanza get stanza =>
-      throw _privateConstructorUsedError; // Whether the stanza is retransmitted. Only useful in the context of outgoing
-// stanza handlers. MUST NOT be overwritten.
-  bool get retransmitted => throw _privateConstructorUsedError;
-  StatelessMediaSharingData? get sims => throw _privateConstructorUsedError;
-  StatelessFileSharingData? get sfs => throw _privateConstructorUsedError;
-  OOBData? get oob => throw _privateConstructorUsedError;
-  StableStanzaId? get stableId => throw _privateConstructorUsedError;
-  ReplyData? get reply => throw _privateConstructorUsedError;
-  ChatState? get chatState => throw _privateConstructorUsedError;
-  bool get isCarbon => throw _privateConstructorUsedError;
-  bool get deliveryReceiptRequested => throw _privateConstructorUsedError;
-  bool get isMarkable =>
-      throw _privateConstructorUsedError; // File Upload Notifications
-// A notification
-  FileMetadataData? get fun =>
-      throw _privateConstructorUsedError; // The stanza id this replaces
-  String? get funReplacement =>
-      throw _privateConstructorUsedError; // The stanza id this cancels
-  String? get funCancellation =>
-      throw _privateConstructorUsedError; // Whether the stanza was received encrypted
-  bool get encrypted =>
-      throw _privateConstructorUsedError; // The stated type of encryption used, if any was used
-  ExplicitEncryptionType? get encryptionType =>
-      throw _privateConstructorUsedError; // Delayed Delivery
-  DelayedDelivery? get delayedDelivery =>
-      throw _privateConstructorUsedError; // This is for stanza handlers that are not part of the XMPP library but still need
-// pass data around.
-  Map<String, dynamic> get other => throw _privateConstructorUsedError;
-
-  @JsonKey(ignore: true)
-  $StanzaHandlerDataCopyWith<StanzaHandlerData> get copyWith =>
-      throw _privateConstructorUsedError;
-}
-
-/// @nodoc
-abstract class $StanzaHandlerDataCopyWith<$Res> {
-  factory $StanzaHandlerDataCopyWith(
-          StanzaHandlerData value, $Res Function(StanzaHandlerData) then) =
-      _$StanzaHandlerDataCopyWithImpl<$Res>;
-  $Res call(
-      {bool done,
-      bool cancel,
-      dynamic cancelReason,
-      Stanza stanza,
-      bool retransmitted,
-      StatelessMediaSharingData? sims,
-      StatelessFileSharingData? sfs,
-      OOBData? oob,
-      StableStanzaId? stableId,
-      ReplyData? reply,
-      ChatState? chatState,
-      bool isCarbon,
-      bool deliveryReceiptRequested,
-      bool isMarkable,
-      FileMetadataData? fun,
-      String? funReplacement,
-      String? funCancellation,
-      bool encrypted,
-      ExplicitEncryptionType? encryptionType,
-      DelayedDelivery? delayedDelivery,
-      Map<String, dynamic> other});
-}
-
-/// @nodoc
-class _$StanzaHandlerDataCopyWithImpl<$Res>
-    implements $StanzaHandlerDataCopyWith<$Res> {
-  _$StanzaHandlerDataCopyWithImpl(this._value, this._then);
-
-  final StanzaHandlerData _value;
-  // ignore: unused_field
-  final $Res Function(StanzaHandlerData) _then;
-
-  @override
-  $Res call({
-    Object? done = freezed,
-    Object? cancel = freezed,
-    Object? cancelReason = freezed,
-    Object? stanza = freezed,
-    Object? retransmitted = freezed,
-    Object? sims = freezed,
-    Object? sfs = freezed,
-    Object? oob = freezed,
-    Object? stableId = freezed,
-    Object? reply = freezed,
-    Object? chatState = freezed,
-    Object? isCarbon = freezed,
-    Object? deliveryReceiptRequested = freezed,
-    Object? isMarkable = freezed,
-    Object? fun = freezed,
-    Object? funReplacement = freezed,
-    Object? funCancellation = freezed,
-    Object? encrypted = freezed,
-    Object? encryptionType = freezed,
-    Object? delayedDelivery = freezed,
-    Object? other = freezed,
-  }) {
-    return _then(_value.copyWith(
-      done: done == freezed
-          ? _value.done
-          : done // ignore: cast_nullable_to_non_nullable
-              as bool,
-      cancel: cancel == freezed
-          ? _value.cancel
-          : cancel // ignore: cast_nullable_to_non_nullable
-              as bool,
-      cancelReason: cancelReason == freezed
-          ? _value.cancelReason
-          : cancelReason // ignore: cast_nullable_to_non_nullable
-              as dynamic,
-      stanza: stanza == freezed
-          ? _value.stanza
-          : stanza // ignore: cast_nullable_to_non_nullable
-              as Stanza,
-      retransmitted: retransmitted == freezed
-          ? _value.retransmitted
-          : retransmitted // ignore: cast_nullable_to_non_nullable
-              as bool,
-      sims: sims == freezed
-          ? _value.sims
-          : sims // ignore: cast_nullable_to_non_nullable
-              as StatelessMediaSharingData?,
-      sfs: sfs == freezed
-          ? _value.sfs
-          : sfs // ignore: cast_nullable_to_non_nullable
-              as StatelessFileSharingData?,
-      oob: oob == freezed
-          ? _value.oob
-          : oob // ignore: cast_nullable_to_non_nullable
-              as OOBData?,
-      stableId: stableId == freezed
-          ? _value.stableId
-          : stableId // ignore: cast_nullable_to_non_nullable
-              as StableStanzaId?,
-      reply: reply == freezed
-          ? _value.reply
-          : reply // ignore: cast_nullable_to_non_nullable
-              as ReplyData?,
-      chatState: chatState == freezed
-          ? _value.chatState
-          : chatState // ignore: cast_nullable_to_non_nullable
-              as ChatState?,
-      isCarbon: isCarbon == freezed
-          ? _value.isCarbon
-          : isCarbon // ignore: cast_nullable_to_non_nullable
-              as bool,
-      deliveryReceiptRequested: deliveryReceiptRequested == freezed
-          ? _value.deliveryReceiptRequested
-          : deliveryReceiptRequested // ignore: cast_nullable_to_non_nullable
-              as bool,
-      isMarkable: isMarkable == freezed
-          ? _value.isMarkable
-          : isMarkable // ignore: cast_nullable_to_non_nullable
-              as bool,
-      fun: fun == freezed
-          ? _value.fun
-          : fun // ignore: cast_nullable_to_non_nullable
-              as FileMetadataData?,
-      funReplacement: funReplacement == freezed
-          ? _value.funReplacement
-          : funReplacement // ignore: cast_nullable_to_non_nullable
-              as String?,
-      funCancellation: funCancellation == freezed
-          ? _value.funCancellation
-          : funCancellation // ignore: cast_nullable_to_non_nullable
-              as String?,
-      encrypted: encrypted == freezed
-          ? _value.encrypted
-          : encrypted // ignore: cast_nullable_to_non_nullable
-              as bool,
-      encryptionType: encryptionType == freezed
-          ? _value.encryptionType
-          : encryptionType // ignore: cast_nullable_to_non_nullable
-              as ExplicitEncryptionType?,
-      delayedDelivery: delayedDelivery == freezed
-          ? _value.delayedDelivery
-          : delayedDelivery // ignore: cast_nullable_to_non_nullable
-              as DelayedDelivery?,
-      other: other == freezed
-          ? _value.other
-          : other // ignore: cast_nullable_to_non_nullable
-              as Map<String, dynamic>,
-    ));
-  }
-}
-
-/// @nodoc
-abstract class _$$_StanzaHandlerDataCopyWith<$Res>
-    implements $StanzaHandlerDataCopyWith<$Res> {
-  factory _$$_StanzaHandlerDataCopyWith(_$_StanzaHandlerData value,
-          $Res Function(_$_StanzaHandlerData) then) =
-      __$$_StanzaHandlerDataCopyWithImpl<$Res>;
-  @override
-  $Res call(
-      {bool done,
-      bool cancel,
-      dynamic cancelReason,
-      Stanza stanza,
-      bool retransmitted,
-      StatelessMediaSharingData? sims,
-      StatelessFileSharingData? sfs,
-      OOBData? oob,
-      StableStanzaId? stableId,
-      ReplyData? reply,
-      ChatState? chatState,
-      bool isCarbon,
-      bool deliveryReceiptRequested,
-      bool isMarkable,
-      FileMetadataData? fun,
-      String? funReplacement,
-      String? funCancellation,
-      bool encrypted,
-      ExplicitEncryptionType? encryptionType,
-      DelayedDelivery? delayedDelivery,
-      Map<String, dynamic> other});
-}
-
-/// @nodoc
-class __$$_StanzaHandlerDataCopyWithImpl<$Res>
-    extends _$StanzaHandlerDataCopyWithImpl<$Res>
-    implements _$$_StanzaHandlerDataCopyWith<$Res> {
-  __$$_StanzaHandlerDataCopyWithImpl(
-      _$_StanzaHandlerData _value, $Res Function(_$_StanzaHandlerData) _then)
-      : super(_value, (v) => _then(v as _$_StanzaHandlerData));
-
-  @override
-  _$_StanzaHandlerData get _value => super._value as _$_StanzaHandlerData;
-
-  @override
-  $Res call({
-    Object? done = freezed,
-    Object? cancel = freezed,
-    Object? cancelReason = freezed,
-    Object? stanza = freezed,
-    Object? retransmitted = freezed,
-    Object? sims = freezed,
-    Object? sfs = freezed,
-    Object? oob = freezed,
-    Object? stableId = freezed,
-    Object? reply = freezed,
-    Object? chatState = freezed,
-    Object? isCarbon = freezed,
-    Object? deliveryReceiptRequested = freezed,
-    Object? isMarkable = freezed,
-    Object? fun = freezed,
-    Object? funReplacement = freezed,
-    Object? funCancellation = freezed,
-    Object? encrypted = freezed,
-    Object? encryptionType = freezed,
-    Object? delayedDelivery = freezed,
-    Object? other = freezed,
-  }) {
-    return _then(_$_StanzaHandlerData(
-      done == freezed
-          ? _value.done
-          : done // ignore: cast_nullable_to_non_nullable
-              as bool,
-      cancel == freezed
-          ? _value.cancel
-          : cancel // ignore: cast_nullable_to_non_nullable
-              as bool,
-      cancelReason == freezed
-          ? _value.cancelReason
-          : cancelReason // ignore: cast_nullable_to_non_nullable
-              as dynamic,
-      stanza == freezed
-          ? _value.stanza
-          : stanza // ignore: cast_nullable_to_non_nullable
-              as Stanza,
-      retransmitted: retransmitted == freezed
-          ? _value.retransmitted
-          : retransmitted // ignore: cast_nullable_to_non_nullable
-              as bool,
-      sims: sims == freezed
-          ? _value.sims
-          : sims // ignore: cast_nullable_to_non_nullable
-              as StatelessMediaSharingData?,
-      sfs: sfs == freezed
-          ? _value.sfs
-          : sfs // ignore: cast_nullable_to_non_nullable
-              as StatelessFileSharingData?,
-      oob: oob == freezed
-          ? _value.oob
-          : oob // ignore: cast_nullable_to_non_nullable
-              as OOBData?,
-      stableId: stableId == freezed
-          ? _value.stableId
-          : stableId // ignore: cast_nullable_to_non_nullable
-              as StableStanzaId?,
-      reply: reply == freezed
-          ? _value.reply
-          : reply // ignore: cast_nullable_to_non_nullable
-              as ReplyData?,
-      chatState: chatState == freezed
-          ? _value.chatState
-          : chatState // ignore: cast_nullable_to_non_nullable
-              as ChatState?,
-      isCarbon: isCarbon == freezed
-          ? _value.isCarbon
-          : isCarbon // ignore: cast_nullable_to_non_nullable
-              as bool,
-      deliveryReceiptRequested: deliveryReceiptRequested == freezed
-          ? _value.deliveryReceiptRequested
-          : deliveryReceiptRequested // ignore: cast_nullable_to_non_nullable
-              as bool,
-      isMarkable: isMarkable == freezed
-          ? _value.isMarkable
-          : isMarkable // ignore: cast_nullable_to_non_nullable
-              as bool,
-      fun: fun == freezed
-          ? _value.fun
-          : fun // ignore: cast_nullable_to_non_nullable
-              as FileMetadataData?,
-      funReplacement: funReplacement == freezed
-          ? _value.funReplacement
-          : funReplacement // ignore: cast_nullable_to_non_nullable
-              as String?,
-      funCancellation: funCancellation == freezed
-          ? _value.funCancellation
-          : funCancellation // ignore: cast_nullable_to_non_nullable
-              as String?,
-      encrypted: encrypted == freezed
-          ? _value.encrypted
-          : encrypted // ignore: cast_nullable_to_non_nullable
-              as bool,
-      encryptionType: encryptionType == freezed
-          ? _value.encryptionType
-          : encryptionType // ignore: cast_nullable_to_non_nullable
-              as ExplicitEncryptionType?,
-      delayedDelivery: delayedDelivery == freezed
-          ? _value.delayedDelivery
-          : delayedDelivery // ignore: cast_nullable_to_non_nullable
-              as DelayedDelivery?,
-      other: other == freezed
-          ? _value._other
-          : other // ignore: cast_nullable_to_non_nullable
-              as Map<String, dynamic>,
-    ));
-  }
-}
-
-/// @nodoc
-
-class _$_StanzaHandlerData implements _StanzaHandlerData {
-  _$_StanzaHandlerData(this.done, this.cancel, this.cancelReason, this.stanza,
-      {this.retransmitted = false,
-      this.sims,
-      this.sfs,
-      this.oob,
-      this.stableId,
-      this.reply,
-      this.chatState,
-      this.isCarbon = false,
-      this.deliveryReceiptRequested = false,
-      this.isMarkable = false,
-      this.fun,
-      this.funReplacement,
-      this.funCancellation,
-      this.encrypted = false,
-      this.encryptionType,
-      this.delayedDelivery,
-      final Map<String, dynamic> other = const <String, dynamic>{}})
-      : _other = other;
-
-// Indicates to the runner that processing is now done. This means that all
-// pre-processing is done and no other handlers should be consulted.
-  @override
-  final bool done;
-// Indicates to the runner that processing is to be cancelled and no further handlers
-// should run. The stanza also will not be sent.
-  @override
-  final bool cancel;
-// The reason why we cancelled the processing and sending
-  @override
-  final dynamic cancelReason;
-// The stanza that is being dealt with. SHOULD NOT be overwritten, unless it is absolutely
-// necessary, e.g. with Message Carbons or OMEMO
-  @override
-  final Stanza stanza;
-// Whether the stanza is retransmitted. Only useful in the context of outgoing
-// stanza handlers. MUST NOT be overwritten.
-  @override
-  @JsonKey()
-  final bool retransmitted;
-  @override
-  final StatelessMediaSharingData? sims;
-  @override
-  final StatelessFileSharingData? sfs;
-  @override
-  final OOBData? oob;
-  @override
-  final StableStanzaId? stableId;
-  @override
-  final ReplyData? reply;
-  @override
-  final ChatState? chatState;
-  @override
-  @JsonKey()
-  final bool isCarbon;
-  @override
-  @JsonKey()
-  final bool deliveryReceiptRequested;
-  @override
-  @JsonKey()
-  final bool isMarkable;
-// File Upload Notifications
-// A notification
-  @override
-  final FileMetadataData? fun;
-// The stanza id this replaces
-  @override
-  final String? funReplacement;
-// The stanza id this cancels
-  @override
-  final String? funCancellation;
-// Whether the stanza was received encrypted
-  @override
-  @JsonKey()
-  final bool encrypted;
-// The stated type of encryption used, if any was used
-  @override
-  final ExplicitEncryptionType? encryptionType;
-// Delayed Delivery
-  @override
-  final DelayedDelivery? delayedDelivery;
-// This is for stanza handlers that are not part of the XMPP library but still need
-// pass data around.
-  final Map<String, dynamic> _other;
-// This is for stanza handlers that are not part of the XMPP library but still need
-// pass data around.
-  @override
-  @JsonKey()
-  Map<String, dynamic> get other {
-    // ignore: implicit_dynamic_type
-    return EqualUnmodifiableMapView(_other);
-  }
-
-  @override
-  String toString() {
-    return 'StanzaHandlerData(done: $done, cancel: $cancel, cancelReason: $cancelReason, stanza: $stanza, retransmitted: $retransmitted, sims: $sims, sfs: $sfs, oob: $oob, stableId: $stableId, reply: $reply, chatState: $chatState, isCarbon: $isCarbon, deliveryReceiptRequested: $deliveryReceiptRequested, isMarkable: $isMarkable, fun: $fun, funReplacement: $funReplacement, funCancellation: $funCancellation, encrypted: $encrypted, encryptionType: $encryptionType, delayedDelivery: $delayedDelivery, other: $other)';
-  }
-
-  @override
-  bool operator ==(dynamic other) {
-    return identical(this, other) ||
-        (other.runtimeType == runtimeType &&
-            other is _$_StanzaHandlerData &&
-            const DeepCollectionEquality().equals(other.done, done) &&
-            const DeepCollectionEquality().equals(other.cancel, cancel) &&
-            const DeepCollectionEquality()
-                .equals(other.cancelReason, cancelReason) &&
-            const DeepCollectionEquality().equals(other.stanza, stanza) &&
-            const DeepCollectionEquality()
-                .equals(other.retransmitted, retransmitted) &&
-            const DeepCollectionEquality().equals(other.sims, sims) &&
-            const DeepCollectionEquality().equals(other.sfs, sfs) &&
-            const DeepCollectionEquality().equals(other.oob, oob) &&
-            const DeepCollectionEquality().equals(other.stableId, stableId) &&
-            const DeepCollectionEquality().equals(other.reply, reply) &&
-            const DeepCollectionEquality().equals(other.chatState, chatState) &&
-            const DeepCollectionEquality().equals(other.isCarbon, isCarbon) &&
-            const DeepCollectionEquality().equals(
-                other.deliveryReceiptRequested, deliveryReceiptRequested) &&
-            const DeepCollectionEquality()
-                .equals(other.isMarkable, isMarkable) &&
-            const DeepCollectionEquality().equals(other.fun, fun) &&
-            const DeepCollectionEquality()
-                .equals(other.funReplacement, funReplacement) &&
-            const DeepCollectionEquality()
-                .equals(other.funCancellation, funCancellation) &&
-            const DeepCollectionEquality().equals(other.encrypted, encrypted) &&
-            const DeepCollectionEquality()
-                .equals(other.encryptionType, encryptionType) &&
-            const DeepCollectionEquality()
-                .equals(other.delayedDelivery, delayedDelivery) &&
-            const DeepCollectionEquality().equals(other._other, this._other));
-  }
-
-  @override
-  int get hashCode => Object.hashAll([
-        runtimeType,
-        const DeepCollectionEquality().hash(done),
-        const DeepCollectionEquality().hash(cancel),
-        const DeepCollectionEquality().hash(cancelReason),
-        const DeepCollectionEquality().hash(stanza),
-        const DeepCollectionEquality().hash(retransmitted),
-        const DeepCollectionEquality().hash(sims),
-        const DeepCollectionEquality().hash(sfs),
-        const DeepCollectionEquality().hash(oob),
-        const DeepCollectionEquality().hash(stableId),
-        const DeepCollectionEquality().hash(reply),
-        const DeepCollectionEquality().hash(chatState),
-        const DeepCollectionEquality().hash(isCarbon),
-        const DeepCollectionEquality().hash(deliveryReceiptRequested),
-        const DeepCollectionEquality().hash(isMarkable),
-        const DeepCollectionEquality().hash(fun),
-        const DeepCollectionEquality().hash(funReplacement),
-        const DeepCollectionEquality().hash(funCancellation),
-        const DeepCollectionEquality().hash(encrypted),
-        const DeepCollectionEquality().hash(encryptionType),
-        const DeepCollectionEquality().hash(delayedDelivery),
-        const DeepCollectionEquality().hash(_other)
-      ]);
-
-  @JsonKey(ignore: true)
-  @override
-  _$$_StanzaHandlerDataCopyWith<_$_StanzaHandlerData> get copyWith =>
-      __$$_StanzaHandlerDataCopyWithImpl<_$_StanzaHandlerData>(
-          this, _$identity);
-}
-
-abstract class _StanzaHandlerData implements StanzaHandlerData {
-  factory _StanzaHandlerData(final bool done, final bool cancel,
-      final dynamic cancelReason, final Stanza stanza,
-      {final bool retransmitted,
-      final StatelessMediaSharingData? sims,
-      final StatelessFileSharingData? sfs,
-      final OOBData? oob,
-      final StableStanzaId? stableId,
-      final ReplyData? reply,
-      final ChatState? chatState,
-      final bool isCarbon,
-      final bool deliveryReceiptRequested,
-      final bool isMarkable,
-      final FileMetadataData? fun,
-      final String? funReplacement,
-      final String? funCancellation,
-      final bool encrypted,
-      final ExplicitEncryptionType? encryptionType,
-      final DelayedDelivery? delayedDelivery,
-      final Map<String, dynamic> other}) = _$_StanzaHandlerData;
-
-  @override // Indicates to the runner that processing is now done. This means that all
-// pre-processing is done and no other handlers should be consulted.
-  bool get done;
-  @override // Indicates to the runner that processing is to be cancelled and no further handlers
-// should run. The stanza also will not be sent.
-  bool get cancel;
-  @override // The reason why we cancelled the processing and sending
-  dynamic get cancelReason;
-  @override // The stanza that is being dealt with. SHOULD NOT be overwritten, unless it is absolutely
-// necessary, e.g. with Message Carbons or OMEMO
-  Stanza get stanza;
-  @override // Whether the stanza is retransmitted. Only useful in the context of outgoing
-// stanza handlers. MUST NOT be overwritten.
-  bool get retransmitted;
-  @override
-  StatelessMediaSharingData? get sims;
-  @override
-  StatelessFileSharingData? get sfs;
-  @override
-  OOBData? get oob;
-  @override
-  StableStanzaId? get stableId;
-  @override
-  ReplyData? get reply;
-  @override
-  ChatState? get chatState;
-  @override
-  bool get isCarbon;
-  @override
-  bool get deliveryReceiptRequested;
-  @override
-  bool get isMarkable;
-  @override // File Upload Notifications
-// A notification
-  FileMetadataData? get fun;
-  @override // The stanza id this replaces
-  String? get funReplacement;
-  @override // The stanza id this cancels
-  String? get funCancellation;
-  @override // Whether the stanza was received encrypted
-  bool get encrypted;
-  @override // The stated type of encryption used, if any was used
-  ExplicitEncryptionType? get encryptionType;
-  @override // Delayed Delivery
-  DelayedDelivery? get delayedDelivery;
-  @override // This is for stanza handlers that are not part of the XMPP library but still need
-// pass data around.
-  Map<String, dynamic> get other;
-  @override
-  @JsonKey(ignore: true)
-  _$$_StanzaHandlerDataCopyWith<_$_StanzaHandlerData> get copyWith =>
-      throw _privateConstructorUsedError;
-}

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

@@ -4,90 +4,111 @@ import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
 
+/// A Handler is responsible for matching any kind of toplevel item in the XML stream
+/// (stanzas and Nonzas). For that, its [matches] method is called. What happens
+/// next depends on the subclass.
+// ignore: one_member_abstracts
 abstract class Handler {
-
-  const Handler(this.matchStanzas, { this.nonzaTag, this.nonzaXmlns });
-  final String? nonzaTag;
-  final String? nonzaXmlns;
-  final bool matchStanzas;
-
   /// Returns true if the node matches the description provided by this [Handler].
+  bool matches(XMLNode node);
+}
+
+/// A Handler that specialises in matching Nonzas (and stanzas).
+class NonzaHandler extends Handler {
+  NonzaHandler({
+    required this.callback,
+    this.nonzaTag,
+    this.nonzaXmlns,
+  });
+
+  /// The function to call when a nonza matches the description.
+  final Future<bool> Function(XMLNode) callback;
+
+  /// The expected tag of a matching nonza.
+  final String? nonzaTag;
+
+  // The expected xmlns attribute of a matching nonza.
+  final String? nonzaXmlns;
+
+  @override
   bool matches(XMLNode node) {
-    var matches = false;
+    var matches = true;
-
     if (nonzaTag == null && nonzaXmlns == null) {
-      matches = true;
+      return true;
-    }
+    } else {
-
+      if (nonzaXmlns != null) {
-    if (nonzaXmlns != null && nonzaTag != null) {
+        matches &= node.attributes['xmlns'] == nonzaXmlns;
-      matches = (node.attributes['xmlns'] ?? '') == nonzaXmlns! && node.tag == nonzaTag!;
+      }
-    }
+      if (nonzaTag != null) {
-    
+        matches &= node.tag == nonzaTag;
-    if (matchStanzas && nonzaTag == null) {
+      }
-      matches = [ 'iq', 'presence', 'message' ].contains(node.tag);
     }
 
     return matches;
   }
 }
 
-class NonzaHandler extends Handler {
+/// A Handler that only matches stanzas.
-
-  NonzaHandler({
-      required this.callback,
-      String? nonzaTag,
-      String? nonzaXmlns,
-  }) : super(
-    false,
-    nonzaTag: nonzaTag,
-    nonzaXmlns: nonzaXmlns,
-  );
-  final Future<bool> Function(XMLNode) callback;
-}
-
 class StanzaHandler extends Handler {
-
   StanzaHandler({
-      required this.callback,
+    required this.callback,
-      this.tagXmlns,
+    this.tagXmlns,
-      this.tagName,     
+    this.tagName,
-      this.priority = 0,
+    this.priority = 0,
-      String? stanzaTag,
+    this.stanzaTag,
-  }) : super(
+    this.xmlns,
-      true,
+  });
-      nonzaTag: stanzaTag,
+
-      nonzaXmlns: stanzaXmlns,
+  /// If specified, then the stanza must contain a direct child with a tag equal to
-    );
+  /// [tagName].
   final String? tagName;
+
+  /// If specified, then the stanza must contain a direct child with a xmlns attribute
+  /// equal to [tagXmlns]. If [tagName] is also non-null, then the element must also
+  /// have a tag equal to [tagName].
   final String? tagXmlns;
+
+  /// If specified, the matching stanza must have a tag equal to [stanzaTag].
+  final String? stanzaTag;
+
+  /// If specified, then the stanza must have a xmlns attribute equal to [xmlns].
+  /// This defaults to [stanzaXmlns], but can be set to any other value or null. This
+  /// is useful, for example, for components.
+  final String? xmlns;
+
+  /// The priority after which [StanzaHandler]s are sorted.
   final int priority;
+
+  /// The function to call when a stanza matches the description.
   final Future<StanzaHandlerData> Function(Stanza, StanzaHandlerData) callback;
 
   @override
   bool matches(XMLNode node) {
-    var matches = super.matches(node);
+    var matches = ['iq', 'message', 'presence'].contains(node.tag);
-    
+    if (stanzaTag != null) {
-    if (matches == false) {
+      matches &= node.tag == stanzaTag;
-      return false;
+    }
+    if (xmlns != null) {
+      matches &= node.xmlns == xmlns;
     }
 
     if (tagName != null) {
       final firstTag = node.firstTag(tagName!, xmlns: tagXmlns);
+      matches &= firstTag != null;
 
-      matches = firstTag != null;
+      if (tagXmlns != null) {
+        matches &= firstTag?.xmlns == tagXmlns;
+      }
     } else if (tagXmlns != null) {
-      return listContains(
+      matches &= listContains(
         node.children,
-        (XMLNode node_) => node_.attributes.containsKey('xmlns') && node_.attributes['xmlns'] == tagXmlns,
+        (XMLNode node_) => node_.attributes['xmlns'] == tagXmlns,
       );
     }
 
-    if (tagName == null && tagXmlns == null) {
-      matches = true;
-    }
-    
     return matches;
   }
 }
 
-int stanzaHandlerSortComparator(StanzaHandler a, StanzaHandler b) => b.priority.compareTo(a.priority);
+int stanzaHandlerSortComparator(StanzaHandler a, StanzaHandler b) =>
+    b.priority.compareTo(a.priority);

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

@@ -1,26 +1,34 @@
-const smManager = 'im.moxxmpp.streammangementmanager';
+const smManager = 'org.moxxmpp.streammangementmanager';
-const discoManager = 'im.moxxmpp.discomanager';
+const discoManager = 'org.moxxmpp.discomanager';
-const messageManager = 'im.moxxmpp.messagemanager';
+const messageManager = 'org.moxxmpp.messagemanager';
-const rosterManager = 'im.moxxmpp.rostermanager';
+const rosterManager = 'org.moxxmpp.rostermanager';
-const presenceManager = 'im.moxxmpp.presencemanager';
+const presenceManager = 'org.moxxmpp.presencemanager';
-const csiManager = 'im.moxxmpp.csimanager';
+const csiManager = 'org.moxxmpp.csimanager';
-const carbonsManager = 'im.moxxmpp.carbonsmanager';
+const carbonsManager = 'org.moxxmpp.carbonsmanager';
-const vcardManager = 'im.moxxmpp.vcardmanager';
+const vcardManager = 'org.moxxmpp.vcardmanager';
-const pubsubManager = 'im.moxxmpp.pubsubmanager';
+const pubsubManager = 'org.moxxmpp.pubsubmanager';
-const userAvatarManager = 'im.moxxmpp.useravatarmanager';
+const userAvatarManager = 'org.moxxmpp.useravatarmanager';
-const stableIdManager = 'im.moxxmpp.stableidmanager';
+const stableIdManager = 'org.moxxmpp.stableidmanager';
-const simsManager = 'im.moxxmpp.simsmanager';
+const simsManager = 'org.moxxmpp.simsmanager';
-const messageDeliveryReceiptManager = 'im.moxxmpp.messagedeliveryreceiptmanager';
+const messageDeliveryReceiptManager =
-const chatMarkerManager = 'im.moxxmpp.chatmarkermanager';
+    'org.moxxmpp.messagedeliveryreceiptmanager';
-const oobManager = 'im.moxxmpp.oobmanager';
+const chatMarkerManager = 'org.moxxmpp.chatmarkermanager';
-const sfsManager = 'im.moxxmpp.sfsmanager';
+const oobManager = 'org.moxxmpp.oobmanager';
-const messageRepliesManager = 'im.moxxmpp.messagerepliesmanager';
+const sfsManager = 'org.moxxmpp.sfsmanager';
-const blockingManager = 'im.moxxmpp.blockingmanager';
+const messageRepliesManager = 'org.moxxmpp.messagerepliesmanager';
-const httpFileUploadManager = 'im.moxxmpp.httpfileuploadmanager';
+const blockingManager = 'org.moxxmpp.blockingmanager';
-const chatStateManager = 'im.moxxmpp.chatstatemanager';
+const httpFileUploadManager = 'org.moxxmpp.httpfileuploadmanager';
-const pingManager = 'im.moxxmpp.ping';
+const chatStateManager = 'org.moxxmpp.chatstatemanager';
-const fileUploadNotificationManager = 'im.moxxmpp.fileuploadnotificationmanager';
+const pingManager = 'org.moxxmpp.ping';
+const fileUploadNotificationManager =
+    'org.moxxmpp.fileuploadnotificationmanager';
 const omemoManager = 'org.moxxmpp.omemomanager';
 const emeManager = 'org.moxxmpp.ememanager';
 const cryptographicHashManager = 'org.moxxmpp.cryptographichashmanager';
 const delayedDeliveryManager = 'org.moxxmpp.delayeddeliverymanager';
+const messageRetractionManager = 'org.moxxmpp.messageretractionmanager';
+const lastMessageCorrectionManager = 'org.moxxmpp.lastmessagecorrectionmanager';
+const messageReactionsManager = 'org.moxxmpp.messagereactionsmanager';
+const stickersManager = 'org.moxxmpp.stickersmanager';
+const entityCapabilitiesManager = 'org.moxxmpp.entitycapabilities';
+const messageProcessingHintManager = 'org.moxxmpp.messageprocessinghint';

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

@@ -0,0 +1 @@
+

packages/moxxmpp/lib/src/message.dart

@@ -1,222 +1,144 @@
+import 'package:collection/collection.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/base.dart';
 import 'package:moxxmpp/src/managers/data.dart';
 import 'package:moxxmpp/src/managers/handlers.dart';
 import 'package:moxxmpp/src/managers/namespaces.dart';
-import 'package:moxxmpp/src/namespaces.dart';
 import 'package:moxxmpp/src/stanza.dart';
 import 'package:moxxmpp/src/stringxml.dart';
-import 'package:moxxmpp/src/xeps/staging/file_upload_notification.dart';
+import 'package:moxxmpp/src/util/typed_map.dart';
 import 'package:moxxmpp/src/xeps/xep_0066.dart';
-import 'package:moxxmpp/src/xeps/xep_0085.dart';
-import 'package:moxxmpp/src/xeps/xep_0184.dart';
-import 'package:moxxmpp/src/xeps/xep_0333.dart';
-import 'package:moxxmpp/src/xeps/xep_0359.dart';
-import 'package:moxxmpp/src/xeps/xep_0446.dart';
 import 'package:moxxmpp/src/xeps/xep_0447.dart';
-import 'package:moxxmpp/src/xeps/xep_0448.dart';
+import 'package:moxxmpp/src/xeps/xep_0449.dart';
+import 'package:moxxmpp/src/xeps/xep_0461.dart';
 
-class MessageDetails {
+/// A callback that is called whenever a message is sent using
+/// [MessageManager.sendMessage]. The input the typed map that is passed to
+/// sendMessage.
+typedef MessageSendingCallback = List<XMLNode> Function(
+  TypedMap<StanzaHandlerExtension>,
+);
 
-  const MessageDetails({
+/// The raw content of the <body /> element.
-    required this.to,
+class MessageBodyData implements StanzaHandlerExtension {
-    this.body,
+  const MessageBodyData(this.body);
-    this.requestDeliveryReceipt = false,
+
-    this.requestChatMarkers = true,
+  /// The content of the <body /> element.
-    this.id,
-    this.originId,
-    this.quoteBody,
-    this.quoteId,
-    this.quoteFrom,
-    this.chatState,
-    this.sfs,
-    this.fun,
-    this.funReplacement,
-    this.funCancellation,
-    this.shouldEncrypt = false,
-  });
-  final String to;
   final String? body;
-  final bool requestDeliveryReceipt;
+
-  final bool requestChatMarkers;
+  XMLNode toXML() {
-  final String? id;
+    return XMLNode(
-  final String? originId;
+      tag: 'body',
-  final String? quoteBody;
+      text: body,
-  final String? quoteId;
+    );
-  final String? quoteFrom;
+  }
-  final ChatState? chatState;
+}
-  final StatelessFileSharingData? sfs;
+
-  final FileMetadataData? fun;
+/// The id attribute of the message stanza.
-  final String? funReplacement;
+class MessageIdData implements StanzaHandlerExtension {
-  final String? funCancellation;
+  const MessageIdData(this.id);
-  final bool shouldEncrypt;
+
+  /// The id attribute of the stanza.
+  final String id;
 }
 
 class MessageManager extends XmppManagerBase {
-  @override
+  MessageManager() : super(messageManager);
-  String getId() => messageManager;
 
-  @override
+  /// The priority of the message handler. If a handler should run before this one,
-  String getName() => 'MessageManager';
+  /// which emits the [MessageEvent] event and terminates processing, make sure it
+  /// has a priority greater than [messageHandlerPriority].
+  static int messageHandlerPriority = -100;
+
+  /// A list of callbacks that are called when a message is sent in order to add
+  /// appropriate child elements.
+  final List<MessageSendingCallback> _messageSendingCallbacks =
+      List<MessageSendingCallback>.empty(growable: true);
+
+  void registerMessageSendingCallback(MessageSendingCallback callback) {
+    _messageSendingCallbacks.add(callback);
+  }
 
   @override
   List<StanzaHandler> getIncomingStanzaHandlers() => [
-    StanzaHandler(
+        StanzaHandler(
-      stanzaTag: 'message',
+          stanzaTag: 'message',
-      callback: _onMessage,
+          callback: _onMessage,
-      priority: -100,
+          priority: messageHandlerPriority,
-    )
+        )
-  ];
+      ];
 
   @override
   Future<bool> isSupported() async => true;
 
-  Future<StanzaHandlerData> _onMessage(Stanza _, StanzaHandlerData state) async {
+  Future<StanzaHandlerData> _onMessage(
-    final message = state.stanza;
+    Stanza _,
-    final body = message.firstTag('body');
+    StanzaHandlerData state,
-
+  ) async {
-    getAttributes().sendEvent(MessageEvent(
+    getAttributes().sendEvent(
-      body: body != null ? body.innerText() : '',
+      MessageEvent(
-      fromJid: JID.fromString(message.attributes['from']! as String),
+        JID.fromString(state.stanza.attributes['from']! as String),
-      toJid: JID.fromString(message.attributes['to']! as String),
+        JID.fromString(state.stanza.attributes['to']! as String),
-      sid: message.attributes['id']! as String,
+        state.stanza.attributes['id']! as String,
-      stanzaId: state.stableId ?? const StableStanzaId(),
+        state.encrypted,
-      isCarbon: state.isCarbon,
+        state.extensions,
-      deliveryReceiptRequested: state.deliveryReceiptRequested,
+        type: state.stanza.attributes['type'] as String?,
-      isMarkable: state.isMarkable,
+        error: StanzaError.fromStanza(state.stanza),
-      type: message.attributes['type'] as String?,
+        encryptionError: state.encryptionError,
-      oob: state.oob,
+      ),
-      sfs: state.sfs,
-      sims: state.sims,
-      reply: state.reply,
-      chatState: state.chatState,
-      fun: state.fun,
-      funReplacement: state.funReplacement,
-      funCancellation: state.funCancellation,
-      encrypted: state.encrypted,
-      other: state.other,
-    ),);
-
-    return state.copyWith(done: true);
-  }
-
-  /// Send a message to to with the content body. If deliveryRequest is true, then
-  /// the message will also request a delivery receipt from the receiver.
-  /// If id is non-null, then it will be the id of the message stanza.
-  /// element to this id. If originId is non-null, then it will create an "origin-id"
-  /// child in the message stanza and set its id to originId.
-  void sendMessage(MessageDetails details) {
-    final stanza = Stanza.message(
-      to: details.to,
-      type: 'chat',
-      id: details.id,
-      children: [],
     );
 
-    if (details.quoteBody != null) {
+    return state..done = true;
-      final fallback = '&gt; ${details.quoteBody!}';
+  }
 
-      stanza
+  /// Send an unawaitable message to [to]. [extensions] is a typed map that contains
-        ..addChild(
+  /// data for building the message.
-          XMLNode(tag: 'body', text: '$fallback\n${details.body}'),
+  Future<void> sendMessage(
-        )
+    JID to,
-        ..addChild(
+    TypedMap<StanzaHandlerExtension> extensions,
-          XMLNode.xmlns(
+  ) async {
-            tag: 'reply',
+    await getAttributes().sendStanza(
-            xmlns: replyXmlns,
+      StanzaDetails(
-            attributes: {
+        Stanza.message(
-              'to': details.quoteFrom!,
+          to: to.toString(),
-              'id': details.quoteId!
+          id: extensions.get<MessageIdData>()?.id,
-            },
+          type: 'chat',
-          ),
+          children: _messageSendingCallbacks
-        )
+              .map((c) => c(extensions))
-        ..addChild(
+              .flattened
-          XMLNode.xmlns(
+              .toList(),
-            tag: 'fallback',
-            xmlns: fallbackXmlns,
-            attributes: {
-              'for': replyXmlns
-            },
-            children: [
-              XMLNode(
-                tag: 'body',
-                attributes: <String, String>{
-                  'start': '0',
-                  'end': '${fallback.length}'
-                },
-              )
-            ],
-          ),
-        );
-    } else {
-      var body = details.body;
-      if (details.sfs != null) {
-        // TODO(Unknown): Maybe find a better solution
-        final firstSource = details.sfs!.sources.first;
-        if (firstSource is StatelessFileSharingUrlSource) {
-          body = firstSource.url;
-        } else if (firstSource is StatelessFileSharingEncryptedSource) {
-          body = firstSource.source.url;
-        }
-      }
-
-      stanza.addChild(
-        XMLNode(tag: 'body', text: body),
-      );
-    }
-
-    if (details.requestDeliveryReceipt) {
-      stanza.addChild(makeMessageDeliveryRequest());
-    }
-    if (details.requestChatMarkers) {
-      stanza.addChild(makeChatMarkerMarkable());
-    }
-    if (details.originId != null) {
-      stanza.addChild(makeOriginIdElement(details.originId!));
-    }
-
-    if (details.sfs != null) {
-      stanza.addChild(details.sfs!.toXML());
-
-      final source = details.sfs!.sources.first;
-      if (source is StatelessFileSharingUrlSource) {
-        // SFS recommends OOB as a fallback
-        stanza.addChild(constructOOBNode(OOBData(url: source.url)));
-      }
-    }
-    
-    if (details.chatState != null) {
-      stanza.addChild(
-        // TODO(Unknown): Move this into xep_0085.dart
-        XMLNode.xmlns(tag: chatStateToString(details.chatState!), xmlns: chatStateXmlns),
-      );
-    }
-
-    if (details.fun != null) {
-      stanza.addChild(
-        XMLNode.xmlns(
-          tag: 'file-upload',
-          xmlns: fileUploadNotificationXmlns,
-          children: [
-            details.fun!.toXML(),
-          ],
         ),
-      );
+        awaitable: false,
+      ),
+    );
+  }
+
+  List<XMLNode> _messageSendingCallback(
+    TypedMap<StanzaHandlerExtension> extensions,
+  ) {
+    if (extensions.get<ReplyData>() != null) {
+      return [];
+    }
+    if (extensions.get<StickersData>() != null) {
+      return [];
+    }
+    if (extensions.get<StatelessFileSharingData>() != null) {
+      return [];
+    }
+    if (extensions.get<OOBData>() != null) {
+      return [];
     }
 
-    if (details.funReplacement != null) {
+    final data = extensions.get<MessageBodyData>();
-      stanza.addChild(
+    return data != null ? [data.toXML()] : [];
-        XMLNode.xmlns(
+  }
-          tag: 'replaces',
-          xmlns: fileUploadNotificationXmlns,
-          attributes: <String, String>{
-            'id': details.funReplacement!,
-          },
-        ),
-      );
-    }
 
-    getAttributes().sendStanza(stanza, awaitable: false);
+  @override
+  Future<void> postRegisterCallback() async {
+    await super.postRegisterCallback();
+
+    // Register the sending callback
+    registerMessageSendingCallback(_messageSendingCallback);
   }
 }

packages/moxxmpp/lib/src/namespaces.dart

@@ -9,6 +9,7 @@ const fullStanzaXmlns = 'urn:ietf:params:xml:ns:xmpp-stanzas';
 // RFC 6121
 const rosterXmlns = 'jabber:iq:roster';
 const rosterVersioningXmlns = 'urn:xmpp:features:rosterver';
+const subscriptionPreApprovalXmlns = 'urn:xmpp:features:pre-approval';
 
 // XEP-0004
 const dataFormsXmlns = 'jabber:x:data';
@@ -28,9 +29,11 @@ const vCardTempUpdate = 'vcard-temp:x:update';
 const pubsubXmlns = 'http://jabber.org/protocol/pubsub';
 const pubsubEventXmlns = 'http://jabber.org/protocol/pubsub#event';
 const pubsubOwnerXmlns = 'http://jabber.org/protocol/pubsub#owner';
-const pubsubPublishOptionsXmlns = 'http://jabber.org/protocol/pubsub#publish-options';
+const pubsubPublishOptionsXmlns =
+    'http://jabber.org/protocol/pubsub#publish-options';
 const pubsubNodeConfigMax = 'http://jabber.org/protocol/pubsub#config-node-max';
-const pubsubNodeConfigMultiItems = 'http://jabber.org/protocol/pubsub#multi-items';
+const pubsubNodeConfigMultiItems =
+    'http://jabber.org/protocol/pubsub#multi-items';
 
 // XEP-0066
 const oobDataXmlns = 'jabber:x:oob';
@@ -42,6 +45,9 @@ const userAvatarMetadataXmlns = 'urn:xmpp:avatar:metadata';
 // XEP-0085
 const chatStateXmlns = 'http://jabber.org/protocol/chatstates';
 
+// XEP-0114
+const componentAcceptXmlns = 'jabber:component:accept';
+
 // XEP-0115
 const capsXmlns = 'http://jabber.org/protocol/caps';
 
@@ -69,12 +75,9 @@ const forwardedXmlns = 'urn:xmpp:forward:0';
 // XEP-0300
 const hashXmlns = 'urn:xmpp:hashes:2';
 const hashFunctionNameBaseXmlns = 'urn:xmpp:hash-function-text-names';
-const hashSha256 = 'sha-256';
+
-const hashSha512 = 'sha-512';
+// XEP-0308
-const hashSha3256 = 'sha3-256';
+const lmcXmlns = 'urn:xmpp:message-correct:0';
-const hashSha3512 = 'sha3-512';
-const hashBlake2b256 = 'blake2b-256';
-const hashBlake2b512 = 'blake2b-512';
 
 // XEP-0333
 const chatMarkersXmlns = 'urn:xmpp:chat-markers:0';
@@ -94,7 +97,7 @@ const httpFileUploadXmlns = 'urn:xmpp:http:upload:0';
 // XEP-0372
 const referenceXmlns = 'urn:xmpp:reference:0';
 
-// XEP-380
+// XEP-0380
 const emeXmlns = 'urn:xmpp:eme:0';
 const emeOtr = 'urn:xmpp:otr:0';
 const emeLegacyOpenPGP = 'jabber:x:encrypted';
@@ -111,9 +114,27 @@ const omemoBundlesXmlns = 'urn:xmpp:omemo:2:bundles';
 // XEP-0385
 const simsXmlns = 'urn:xmpp:sims:1';
 
+// XEP-0386
+const bind2Xmlns = 'urn:xmpp:bind:0';
+
+// XEP-0388
+const sasl2Xmlns = 'urn:xmpp:sasl:2';
+
 // XEP-0420
 const sceXmlns = 'urn:xmpp:sce:1';
 
+// XEP-0422
+const fasteningXmlns = 'urn:xmpp:fasten:0';
+
+// XEP-0424
+const messageRetractionXmlns = 'urn:xmpp:message-retract:0';
+
+// XEP-0428
+const fallbackIndicationXmlns = 'urn:xmpp:fallback:0';
+
+// XEP-0444
+const messageReactionsXmlns = 'urn:xmpp:reactions:0';
+
 // XEP-0446
 const fileMetadataXmlns = 'urn:xmpp:file:metadata:0';
 
@@ -122,13 +143,21 @@ const sfsXmlns = 'urn:xmpp:sfs:0';
 
 // XEP-0448
 const sfsEncryptionXmlns = 'urn:xmpp:esfs:0';
-const sfsEncryptionAes128GcmNoPaddingXmlns = 'urn:xmpp:ciphers:aes-128-gcm-nopadding:0';
+const sfsEncryptionAes128GcmNoPaddingXmlns =
-const sfsEncryptionAes256GcmNoPaddingXmlns = 'urn:xmpp:ciphers:aes-256-gcm-nopadding:0';
+    'urn:xmpp:ciphers:aes-128-gcm-nopadding:0';
+const sfsEncryptionAes256GcmNoPaddingXmlns =
+    'urn:xmpp:ciphers:aes-256-gcm-nopadding:0';
 const sfsEncryptionAes256CbcPkcs7Xmlns = 'urn:xmpp:ciphers:aes-256-cbc-pkcs7:0';
 
+// XEP-0449
+const stickersXmlns = 'urn:xmpp:stickers:0';
+
 // XEP-0461
 const replyXmlns = 'urn:xmpp:reply:0';
 const fallbackXmlns = 'urn:xmpp:feature-fallback:0';
 
 // ???
 const urlDataXmlns = 'http://jabber.org/protocol/url-data';
+
+// XEP-XXXX
+const fastXmlns = 'urn:xmpp:fast:0';

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

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

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

@@ -1,10 +1,14 @@
+import 'package:meta/meta.dart';
 import 'package:moxlib/moxlib.dart';
+import 'package:moxxmpp/src/connection.dart';
+import 'package:moxxmpp/src/errors.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
 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 {
@@ -14,17 +18,18 @@ enum NegotiatorState {
   done,
   // Cancel the current attempt but we are not done
   retryLater,
-  // The negotiator is in an error state
-  error,
   // Skip the rest of the negotiation and assume the stream ready. Only use this when
   // using stream restoration XEPs, like Stream Management.
   skipRest,
 }
 
-class NegotiatorAttributes {
+/// A base class for all errors that may occur during feature negotiation
+abstract class NegotiatorError extends XmppError {}
 
+class NegotiatorAttributes {
   const NegotiatorAttributes(
     this.sendNonza,
+    this.getConnection,
     this.getConnectionSettings,
     this.sendEvent,
     this.getNegotiatorById,
@@ -32,29 +37,59 @@ class NegotiatorAttributes {
     this.getFullJID,
     this.getSocket,
     this.isAuthenticated,
+    this.setAuthenticated,
+    this.setResource,
+    this.removeNegotiatingFeature,
   );
+
   /// Sends the nonza nonza and optionally redacts it in logs if redact is not null.
-  final void Function(XMLNode nonza, {String? redact}) sendNonza;
+  final void Function(XMLNode nonza) sendNonza;
+
   /// Returns the connection settings.
   final ConnectionSettings Function() getConnectionSettings;
-  /// Send an event event to the connection's event bus
+
+  /// Returns the connection object.
+  final XmppConnection Function() getConnection;
+
+  /// Send an event event to the connection's event bus.
   final Future<void> Function(XmppEvent event) sendEvent;
+
   /// Returns the negotiator with id id of the connection or null.
-  final T? Function<T extends XmppFeatureNegotiatorBase>(String) getNegotiatorById;
+  final T? Function<T extends XmppFeatureNegotiatorBase>(String)
+      getNegotiatorById;
+
   /// Returns the manager with id id of the connection or null.
   final T? Function<T extends XmppManagerBase>(String) getManagerById;
+
   /// Returns the full JID of the current account
   final JID Function() getFullJID;
+
   /// Returns the socket the negotiator is attached to
   final BaseSocketWrapper Function() getSocket;
+
   /// Returns true if the stream is authenticated. Returns false if not.
   final bool Function() isAuthenticated;
+
+  /// Sets the resource of the connection. If triggerEvent is true, then a
+  /// [ResourceBoundEvent] is triggered.
+  final void Function(String, {bool triggerEvent}) setResource;
+
+  /// Sets the authentication state of the connection to true.
+  final void Function() setAuthenticated;
+
+  /// Remove a stream feature from our internal cache. This is useful for when you
+  /// negotiated a feature for another negotiator, like SASL2.
+  final void Function(String) removeNegotiatingFeature;
 }
 
 abstract class XmppFeatureNegotiatorBase {
+  XmppFeatureNegotiatorBase(
+    this.priority,
+    this.sendStreamHeaderWhenDone,
+    this.negotiatingXmlns,
+    this.id,
+  ) : state = NegotiatorState.ready;
 
-  XmppFeatureNegotiatorBase(this.priority, this.sendStreamHeaderWhenDone, this.negotiatingXmlns, this.id)
-    : state = NegotiatorState.ready;
   /// The priority regarding other negotiators. The higher, the earlier will the
   /// negotiator be used
   final int priority;
@@ -83,11 +118,15 @@ abstract class XmppFeatureNegotiatorBase {
   /// <stream:features /> nonza, can be negotiated. Otherwise, returns false.
   bool matchesFeature(List<XMLNode> features) {
     return firstWhereOrNull(
-      features,
+          features,
-      (XMLNode feature) => feature.attributes['xmlns'] == negotiatingXmlns,
+          (XMLNode feature) => feature.attributes['xmlns'] == negotiatingXmlns,
-    ) != null;
+        ) !=
+        null;
   }
 
+  /// Called when an event is triggered in the [XmppConnection].
+  Future<void> onXmppEvent(XmppEvent event) async {}
+
   /// Called with the currently received nonza [nonza] when the negotiator is active.
   /// If the negotiator is just elected to be the next one, then [nonza] is equal to
   /// the <stream:features /> nonza.
@@ -97,12 +136,17 @@ abstract class XmppFeatureNegotiatorBase {
   /// must switch some internal state to prevent getting matched immediately again.
   /// If ready is returned, then the negotiator indicates that it is not done with
   /// negotiation.
-  Future<void> negotiate(XMLNode nonza);
+  Future<Result<NegotiatorState, NegotiatorError>> negotiate(XMLNode nonza);
 
   /// Reset the negotiator to a state that negotation can happen again.
   void reset() {
     state = NegotiatorState.ready;
   }
 
+  @protected
   NegotiatorAttributes get attributes => _attributes;
+
+  /// Run after all negotiators are registered. Useful for registering callbacks against
+  /// other negotiators. By default this function does nothing.
+  Future<void> postRegisterCallback() async {}
 }

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

@@ -1,66 +0,0 @@
-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/xeps/xep_0198/xep_0198.dart';
-import 'package:uuid/uuid.dart';
-
-class ResourceBindingNegotiator extends XmppFeatureNegotiatorBase {
-
-  ResourceBindingNegotiator() : _requestSent = false, super(0, false, bindXmlns, resourceBindingNegotiator);
-  bool _requestSent;
-
-  @override
-  bool matchesFeature(List<XMLNode> features) {
-    final sm = attributes.getManagerById<StreamManagementManager>(smManager);
-    if (sm != null) {
-      return super.matchesFeature(features) && !sm.streamResumed && attributes.isAuthenticated();
-    }
-
-    return super.matchesFeature(features) && attributes.isAuthenticated();
-  }
-  
-  @override
-  Future<void> negotiate(XMLNode nonza) async {
-    if (!_requestSent) {
-      final stanza = XMLNode.xmlns(
-        tag: 'iq',
-        xmlns: stanzaXmlns,
-        attributes: {
-          'type': 'set',
-          'id': const Uuid().v4(),
-        },
-        children: [
-          XMLNode.xmlns(
-            tag: 'bind',
-            xmlns: bindXmlns,
-          ),
-        ],
-      );
-
-      _requestSent = true;
-      attributes.sendNonza(stanza);
-    } else {
-      if (nonza.tag != 'iq' || nonza.attributes['type'] != 'result') {
-        state = NegotiatorState.error;
-        return;
-      }
-
-      final bind = nonza.firstTag('bind')!;
-      final jid = bind.firstTag('jid')!;
-      final resource = jid.innerText().split('/')[1];
-
-      await attributes.sendEvent(ResourceBindingSuccessEvent(resource: resource));
-      state = NegotiatorState.done;
-    }
-  }
-  
-  @override
-  void reset() {
-    _requestSent = false;
-
-    super.reset();
-  }
-}

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

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

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

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

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

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

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

@@ -1,259 +0,0 @@
-import 'dart:convert';
-import 'dart:math' show Random;
-
-import 'package:cryptography/cryptography.dart';
-import 'package:logging/logging.dart';
-import 'package:moxxmpp/src/events.dart';
-import 'package:moxxmpp/src/namespaces.dart';
-import 'package:moxxmpp/src/negotiators/namespaces.dart';
-import 'package:moxxmpp/src/negotiators/negotiator.dart';
-import 'package:moxxmpp/src/negotiators/sasl/kv.dart';
-import 'package:moxxmpp/src/negotiators/sasl/negotiator.dart';
-import 'package:moxxmpp/src/negotiators/sasl/nonza.dart';
-import 'package:moxxmpp/src/stringxml.dart';
-import 'package:random_string/random_string.dart';
-import 'package:saslprep/saslprep.dart';
-
-// NOTE: Inspired by https://github.com/vukoye/xmpp_dart/blob/3b1a0588562b9e591488c99d834088391840911d/lib/src/features/sasl/ScramSaslHandler.dart
-
-enum ScramHashType {
-  sha1,
-  sha256,
-  sha512
-}
-
-HashAlgorithm hashFromType(ScramHashType type) {
-  switch (type) {
-    case ScramHashType.sha1: return Sha1();
-    case ScramHashType.sha256: return Sha256();
-    case ScramHashType.sha512: return Sha512();
-  }
-}
-
-const scramSha1Mechanism = 'SCRAM-SHA-1';
-const scramSha256Mechanism = 'SCRAM-SHA-256';
-const scramSha512Mechanism = 'SCRAM-SHA-512';
-
-String mechanismNameFromType(ScramHashType type) {
-  switch (type) {
-    case ScramHashType.sha1: return scramSha1Mechanism;
-    case ScramHashType.sha256: return scramSha256Mechanism;
-    case ScramHashType.sha512: return scramSha512Mechanism;
-  }
-}
-
-String namespaceFromType(ScramHashType type) {
-  switch (type) {
-    case ScramHashType.sha1: return saslScramSha1Negotiator;
-    case ScramHashType.sha256: return saslScramSha256Negotiator;
-    case ScramHashType.sha512: return saslScramSha512Negotiator;
-  }
-}
-
-class SaslScramAuthNonza extends SaslAuthNonza {
-  // This subclassing makes less sense here, but this is since the auth nonza here
-  // requires knowledge of the inner state of the Negotiator.
-  SaslScramAuthNonza({ required ScramHashType type, required String body }) : super(
-    mechanismNameFromType(type), body,
-  );
-}
-
-class SaslScramResponseNonza extends XMLNode {
-  SaslScramResponseNonza({ required String body }) : super(
-    tag: 'response',
-    attributes: <String, String>{
-      'xmlns': saslXmlns,
-    },
-    text: body,
-  );
-}
-
-enum ScramState {
-  preSent,
-  initialMessageSent,
-  challengeResponseSent,
-  error
-}
-
-const gs2Header = 'n,,';
-
-class SaslScramNegotiator extends SaslNegotiator {
-  
-  // NOTE: NEVER, and I mean, NEVER set clientNonce or initalMessageNoGS2. They are just there for testing
-  SaslScramNegotiator(
-    int priority,
-    this.initialMessageNoGS2,
-    this.clientNonce,
-    this.hashType,
-  ) :
-    _hash = hashFromType(hashType),
-    _serverSignature = '',
-    _scramState = ScramState.preSent,
-    _log = Logger('SaslScramNegotiator(${mechanismNameFromType(hashType)})'),
-    super(priority, namespaceFromType(hashType), mechanismNameFromType(hashType));
-  String? clientNonce;
-  String initialMessageNoGS2;
-  final ScramHashType hashType;
-  final HashAlgorithm _hash;
-  String _serverSignature;
-
-  // The internal state for performing the negotiation
-  ScramState _scramState;
-
-  final Logger _log;
-
-  Future<List<int>> calculateSaltedPassword(String salt, int iterations) async {
-    final pbkdf2 = Pbkdf2(
-      macAlgorithm: Hmac(_hash),
-      iterations: iterations,
-      bits: 160, // NOTE: RFC says 20 octets => 20 octets * 8 bits/octet
-    );
-
-    final saltedPasswordRaw = await pbkdf2.deriveKey(
-      secretKey: SecretKey(
-        utf8.encode(Saslprep.saslprep(attributes.getConnectionSettings().password)),
-      ),
-      nonce: base64.decode(salt),
-    );
-    return saltedPasswordRaw.extractBytes();
-  }
-
-  Future<List<int>> calculateClientKey(List<int> saltedPassword) async {
-    return (await Hmac(_hash).calculateMac(
-        utf8.encode('Client Key'), secretKey: SecretKey(saltedPassword),
-    )).bytes;
-  }
-
-  Future<List<int>> calculateClientSignature(String authMessage, List<int> storedKey) async {
-    return (await Hmac(_hash).calculateMac(
-        utf8.encode(authMessage),
-        secretKey: SecretKey(storedKey),
-    )).bytes;
-  }
-
-  Future<List<int>> calculateServerKey(List<int> saltedPassword) async {
-    return (await Hmac(_hash).calculateMac(
-        utf8.encode('Server Key'),
-        secretKey: SecretKey(saltedPassword),
-    )).bytes;
-  }
-
-  Future<List<int>> calculateServerSignature(String authMessage, List<int> serverKey) async {
-    return (await Hmac(_hash).calculateMac(
-        utf8.encode(authMessage),
-        secretKey: SecretKey(serverKey),
-    )).bytes;
-  }
-
-  List<int> calculateClientProof(List<int> clientKey, List<int> clientSignature) {
-    final clientProof = List<int>.filled(clientKey.length, 0);
-    for (var i = 0; i < clientKey.length; i++) {
-      clientProof[i] = clientKey[i] ^ clientSignature[i];
-    }
-
-    return clientProof;
-  }
-  
-  Future<String> calculateChallengeResponse(String base64Challenge) async {
-    final challengeString = utf8.decode(base64.decode(base64Challenge));
-    final challenge = parseKeyValue(challengeString);
-    final clientFinalMessageBare = 'c=biws,r=${challenge['r']!}';
-    
-    final saltedPassword = await calculateSaltedPassword(challenge['s']!, int.parse(challenge['i']!));
-    final clientKey = await calculateClientKey(saltedPassword);
-    final storedKey = (await _hash.hash(clientKey)).bytes;
-    final authMessage = '$initialMessageNoGS2,$challengeString,$clientFinalMessageBare';
-    final clientSignature = await calculateClientSignature(authMessage, storedKey);
-    final clientProof = calculateClientProof(clientKey, clientSignature);
-    final serverKey = await calculateServerKey(saltedPassword);
-    _serverSignature = base64.encode(await calculateServerSignature(authMessage, serverKey));
-
-    return '$clientFinalMessageBare,p=${base64.encode(clientProof)}';
-  }
-
-  @override
-  bool matchesFeature(List<XMLNode> features) {
-    if (super.matchesFeature(features)) {
-      if (!attributes.getSocket().isSecure()) {
-        _log.warning('Refusing to match SASL feature due to unsecured connection');
-        return false;
-      }
-
-      return true;
-    }
-
-    return false;
-  }
-  
-  @override
-  Future<void> negotiate(XMLNode nonza) async {
-    switch (_scramState) {
-      case ScramState.preSent:
-        if (clientNonce == null || clientNonce == '') {
-          clientNonce = randomAlphaNumeric(40, provider: CoreRandomProvider.from(Random.secure()));
-        }
-        
-        initialMessageNoGS2 = 'n=${attributes.getConnectionSettings().jid.local},r=$clientNonce';
-
-        _scramState = ScramState.initialMessageSent;
-        attributes.sendNonza(
-          SaslScramAuthNonza(body: base64.encode(utf8.encode(gs2Header + initialMessageNoGS2)), type: hashType),
-          redact: SaslScramAuthNonza(body: '******', type: hashType).toXml(),
-        );
-        break;
-      case ScramState.initialMessageSent:
-        if (nonza.tag != 'challenge') {
-          final error = nonza.children.first.tag;
-          await attributes.sendEvent(AuthenticationFailedEvent(error));
-
-          state = NegotiatorState.error;
-          _scramState = ScramState.error;
-          return;
-        }
-
-        final challengeBase64 = nonza.innerText();
-        final response = await calculateChallengeResponse(challengeBase64);
-        final responseBase64 = base64.encode(utf8.encode(response));
-        _scramState = ScramState.challengeResponseSent;
-        attributes.sendNonza(
-          SaslScramResponseNonza(body: responseBase64),
-          redact: SaslScramResponseNonza(body: '******').toXml(),
-        );
-        return;
-      case ScramState.challengeResponseSent:
-        if (nonza.tag != 'success') {
-          // We assume it's a <failure />
-          final error = nonza.children.first.tag;
-          await attributes.sendEvent(AuthenticationFailedEvent(error));
-          _scramState = ScramState.error;
-          state = NegotiatorState.error;
-          return;
-        }
-
-        // NOTE: This assumes that the string is always "v=..." and contains no other parameters
-        final signature = parseKeyValue(utf8.decode(base64.decode(nonza.innerText())));
-        if (signature['v']! != _serverSignature) {
-          // TODO(Unknown): Notify of a signature mismatch
-          //final error = nonza.children.first.tag;
-          //attributes.sendEvent(AuthenticationFailedEvent(error));
-          _scramState = ScramState.error;
-          state = NegotiatorState.error;
-          return;
-        }
-
-        await attributes.sendEvent(AuthenticationSuccessEvent());
-        state = NegotiatorState.done;
-        return;
-      case ScramState.error:
-        state = NegotiatorState.error;
-        return;
-    }
-  }
-
-  @override
-  void reset() {
-    _scramState = ScramState.preSent;
-
-    super.reset();
-  }
-}

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

@@ -1,65 +0,0 @@
-import 'package:logging/logging.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';
-
-enum _StartTlsState {
-  ready,
-  requested
-}
-
-class StartTLSNonza extends XMLNode {
-  StartTLSNonza() : super.xmlns(
-    tag: 'starttls',
-    xmlns: startTlsXmlns,
-  );
-}
-
-class StartTlsNegotiator extends XmppFeatureNegotiatorBase {
-  
-  StartTlsNegotiator()
-    : _state = _StartTlsState.ready,
-      _log = Logger('StartTlsNegotiator'),
-      super(10, true, startTlsXmlns, startTlsNegotiator);
-  _StartTlsState _state;
-
-  final Logger _log;
-
-  @override
-  Future<void> negotiate(XMLNode nonza) async {
-    switch (_state) {
-      case _StartTlsState.ready:
-        _log.fine('StartTLS is available. Performing StartTLS upgrade...');
-        _state = _StartTlsState.requested;
-        attributes.sendNonza(StartTLSNonza());
-        break;
-      case _StartTlsState.requested:
-        if (nonza.tag != 'proceed' || nonza.attributes['xmlns'] != startTlsXmlns) {
-          _log.severe('Failed to perform StartTLS negotiation');
-          state = NegotiatorState.error;
-          return;
-        }
-
-        _log.fine('Securing socket');
-        final result = await attributes.getSocket()
-          .secure(attributes.getConnectionSettings().jid.domain);
-        if (!result) {
-          _log.severe('Failed to secure stream');
-          state = NegotiatorState.error;
-          return;
-        }
-
-        _log.fine('Stream is now TLS secured');
-        state = NegotiatorState.done;
-        break;
-    }
-  }
-
-  @override
-  void reset() {
-    _state = _StartTlsState.ready;
-
-    super.reset();
-  }
-}

packages/moxxmpp/lib/src/parser.dart

@@ -0,0 +1,165 @@
+import 'dart:async';
+import 'dart:convert';
+import 'package:moxxmpp/src/stringxml.dart';
+// ignore: implementation_imports
+import 'package:xml/src/xml_events/utils/conversion_sink.dart';
+import 'package:xml/xml.dart';
+import 'package:xml/xml_events.dart';
+
+/// A result object for XmlStreamBuffer.
+abstract class XMPPStreamObject {}
+
+/// A complete XML element returned by the stream buffer.
+class XMPPStreamElement extends XMPPStreamObject {
+  XMPPStreamElement(this.node);
+
+  /// The actual [XMLNode].
+  final XMLNode node;
+}
+
+/// Just the stream header of a new XML stream.
+class XMPPStreamHeader extends XMPPStreamObject {
+  XMPPStreamHeader(this.attributes);
+
+  /// The headers of the stream header.
+  final Map<String, String> attributes;
+}
+
+/// A wrapper around a [Converter]'s [Converter.startChunkedConversion] method.
+class _ChunkedConversionBuffer<S, T> {
+  /// Use the converter [converter].
+  _ChunkedConversionBuffer(Converter<S, List<T>> converter) {
+    _outputSink = ConversionSink<List<T>>(_results.addAll);
+    _inputSink = converter.startChunkedConversion(_outputSink);
+  }
+
+  /// The results of the converter.
+  final List<T> _results = List<T>.empty(growable: true);
+
+  /// The sink that outputs to [_results].
+  late ConversionSink<List<T>> _outputSink;
+
+  /// The sink that we use for input.
+  late Sink<S> _inputSink;
+
+  /// Close all opened sinks.
+  void close() {
+    _inputSink.close();
+    _outputSink.close();
+  }
+
+  /// Turn the input [input] into a list of [T] according to the initial converter.
+  List<T> convert(S input) {
+    _results.clear();
+    _inputSink.add(input);
+    return _results;
+  }
+}
+
+/// A buffer to put between a socket's input and a full XML stream.
+class XMPPStreamParser extends StreamTransformerBase<String, XMPPStreamObject> {
+  final StreamController<XMPPStreamObject> _streamController =
+      StreamController<XMPPStreamObject>();
+
+  /// Turns a String into a list of [XmlEvent]s in a chunked fashion.
+  _ChunkedConversionBuffer<String, XmlEvent> _eventBuffer =
+      _ChunkedConversionBuffer<String, XmlEvent>(XmlEventDecoder());
+
+  /// Turns a list of [XmlEvent]s into a list of [XmlNode]s in a chunked fashion.
+  _ChunkedConversionBuffer<List<XmlEvent>, XmlNode> _childBuffer =
+      _ChunkedConversionBuffer<List<XmlEvent>, XmlNode>(const XmlNodeDecoder());
+
+  /// The selectors.
+  _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent> _childSelector =
+      _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent>(
+    XmlSubtreeSelector((event) => event.qualifiedName != 'stream:stream'),
+  );
+  _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent> _streamHeaderSelector =
+      _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent>(
+    XmlSubtreeSelector((event) => event.qualifiedName == 'stream:stream'),
+  );
+
+  void reset() {
+    try {
+      _eventBuffer.close();
+    } catch (_) {
+      // Do nothing. A crash here may indicate that we end on invalid XML, which is fine
+      // since we're not going to use the buffer's output anymore.
+    }
+    try {
+      _childBuffer.close();
+    } catch (_) {
+      // Do nothing.
+    }
+    try {
+      _childSelector.close();
+    } catch (_) {
+      // Do nothing.
+    }
+    try {
+      _streamHeaderSelector.close();
+    } catch (_) {
+      // Do nothing.
+    }
+
+    // Recreate the buffers.
+    _eventBuffer =
+        _ChunkedConversionBuffer<String, XmlEvent>(XmlEventDecoder());
+    _childBuffer = _ChunkedConversionBuffer<List<XmlEvent>, XmlNode>(
+      const XmlNodeDecoder(),
+    );
+    _childSelector = _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent>(
+      XmlSubtreeSelector((event) => event.qualifiedName != 'stream:stream'),
+    );
+    _streamHeaderSelector = _ChunkedConversionBuffer<List<XmlEvent>, XmlEvent>(
+      XmlSubtreeSelector((event) => event.qualifiedName == 'stream:stream'),
+    );
+  }
+
+  @override
+  Stream<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);
+
+      // Process the stream header separately.
+      for (final event in streamHeaderEvents) {
+        if (event is! XmlStartElementEvent) {
+          continue;
+        }
+
+        if (event.name != 'stream:stream') {
+          continue;
+        }
+
+        _streamController.add(
+          XMPPStreamHeader(
+            Map<String, String>.fromEntries(
+              event.attributes.map((attr) {
+                return MapEntry(attr.name, attr.value);
+              }),
+            ),
+          ),
+        );
+      }
+
+      // Process the children of the <stream:stream> element.
+      final childEvents = _childSelector.convert(events);
+      final children = _childBuffer.convert(childEvents);
+      for (final node in children) {
+        if (node.nodeType == XmlNodeType.ELEMENT) {
+          _streamController.add(
+            XMPPStreamElement(
+              XMLNode.fromXmlElement(node as XmlElement),
+            ),
+          );
+        }
+      }
+    });
+
+    return _streamController.stream;
+  }
+}

packages/moxxmpp/lib/src/ping.dart

@@ -1,51 +1,100 @@
+import 'dart:async';
+import 'package:meta/meta.dart';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/managers/base.dart';
 import 'package:moxxmpp/src/managers/namespaces.dart';
 import 'package:moxxmpp/src/xeps/xep_0198/xep_0198.dart';
+import 'package:synchronized/synchronized.dart';
 
+/// This manager class is responsible to sending periodic pings, if required, using
+/// either whitespaces or Stream Management. Keep in mind, that without
+/// Stream Management, a stale connection cannot be detected.
 class PingManager extends XmppManagerBase {
-  @override
+  PingManager(this._pingDuration) : super(pingManager);
-  String getId() => pingManager;
 
-  @override
+  /// The time between pings, when connected.
-  String getName() => 'PingManager';
+  final Duration _pingDuration;
+
+  /// The actual timer.
+  Timer? _pingTimer;
+  final Lock _timerLock = Lock();
 
   @override
   Future<bool> isSupported() async => true;
 
   void _logWarning() {
-    logger.warning('Cannot send keepalives as SM is not available, the socket disallows whitespace pings and does not manage its own keepalives. Cannot guarantee that the connection survives.');
+    logger.warning(
+      'Cannot send keepalives as SM is not available, the socket disallows whitespace pings and does not manage its own keepalives. Cannot guarantee that the connection survives.',
+    );
+  }
+
+  /// Cancel a potentially scheduled ping timer. Can be overriden to cancel a custom timing mechanism.
+  /// By default, cancels a [Timer.periodic] that was set up prior.
+  @visibleForOverriding
+  Future<void> cancelPing() async {
+    await _timerLock.synchronized(() {
+      logger.finest('Cancelling timer');
+      _pingTimer?.cancel();
+      _pingTimer = null;
+    });
+  }
+
+  /// Schedule a ping to be sent after a given amount of time. Can be overriden for custom timing mechanisms.
+  /// By default, uses a [Timer.periodic] timer to trigger a ping.
+  /// NOTE: This function is called whenever the connection is re-established. Custom
+  ///       implementations should thus guard against multiple timers being started.
+  @visibleForOverriding
+  Future<void> schedulePing() async {
+    await _timerLock.synchronized(() {
+      logger.finest('Scheduling new timer? ${_pingTimer != null}');
+
+      _pingTimer ??= Timer.periodic(
+        _pingDuration,
+        _sendPing,
+      );
+    });
+  }
+
+  Future<void> _sendPing(Timer _) async {
+    logger.finest('Attempting to send ping');
+    final attrs = getAttributes();
+    final socket = attrs.getSocket();
+
+    if (socket.managesKeepalives()) {
+      logger.finest('Not sending ping as the socket manages it.');
+      return;
+    }
+
+    final stream = attrs.getManagerById(smManager) as StreamManagementManager?;
+    if (stream != null) {
+      if (stream
+          .isStreamManagementEnabled() /*&& stream.getUnackedStanzaCount() > 0*/) {
+        logger.finest('Sending an ack ping as Stream Management is enabled');
+        stream.sendAckRequestPing();
+      } else if (attrs.getSocket().whitespacePingAllowed()) {
+        logger.finest(
+          'Sending a whitespace ping as Stream Management is not enabled',
+        );
+        attrs.getConnection().sendWhitespacePing();
+      } else {
+        _logWarning();
+      }
+    } else {
+      if (attrs.getSocket().whitespacePingAllowed()) {
+        attrs.getConnection().sendWhitespacePing();
+      } else {
+        _logWarning();
+      }
+    }
   }
 
   @override
   Future<void> onXmppEvent(XmppEvent event) async {
-    if (event is SendPingEvent) {
+    if (event is ConnectionStateChangedEvent) {
-      logger.finest('Received ping event.');
+      if (event.connectionEstablished) {
-      final attrs = getAttributes();
+        await schedulePing();
-      final socket = attrs.getSocket();
-
-      if (socket.managesKeepalives()) {
-        logger.finest('Not sending ping as the socket manages it.');
-        return;
-      }
-      
-      final stream = attrs.getManagerById(smManager) as StreamManagementManager?;
-      if (stream != null) {
-        if (stream.isStreamManagementEnabled() /*&& stream.getUnackedStanzaCount() > 0*/) {
-          logger.finest('Sending an ack ping as Stream Management is enabled');
-          stream.sendAckRequestPing();
-        } else if (attrs.getSocket().whitespacePingAllowed()) {
-          logger.finest('Sending a whitespace ping as Stream Management is not enabled');
-          attrs.getConnection().sendWhitespacePing();
-        } else {
-          _logWarning();
-        }
       } else {
-        if (attrs.getSocket().whitespacePingAllowed()) {
+        await cancelPing();
-          attrs.getConnection().sendWhitespacePing();
-        } else {
-          _logWarning();
-        }
       }
     }
   }

packages/moxxmpp/lib/src/presence.dart

@@ -1,4 +1,4 @@
-import 'package:moxxmpp/src/connection.dart';
+import 'dart:async';
 import 'package:moxxmpp/src/events.dart';
 import 'package:moxxmpp/src/jid.dart';
 import 'package:moxxmpp/src/managers/base.dart';
@@ -6,155 +6,237 @@ 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/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/xeps/xep_0030/types.dart';
+import 'package:moxxmpp/src/types/result.dart';
-import 'package:moxxmpp/src/xeps/xep_0030/xep_0030.dart';
-import 'package:moxxmpp/src/xeps/xep_0115.dart';
-import 'package:moxxmpp/src/xeps/xep_0414.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
+/// presence.
+typedef PresencePreSendCallback = Future<List<XMLNode>> Function();
+
+/// A pseudo-negotiator that does not really negotiate anything. Instead, its purpose
+/// is to look for a stream feature indicating that we can pre-approve subscription
+/// requests, shown by [PresenceNegotiator.preApprovalSupported].
+class PresenceNegotiator extends XmppFeatureNegotiatorBase {
+  PresenceNegotiator()
+      : super(11, false, subscriptionPreApprovalXmlns, presenceNegotiator);
+
+  /// Flag indicating whether presence subscription pre-approval is supported
+  bool _supported = false;
+  bool get preApprovalSupported => _supported;
+
+  @override
+  Future<Result<NegotiatorState, NegotiatorError>> negotiate(
+    XMLNode nonza,
+  ) async {
+    _supported = true;
+    return const Result(NegotiatorState.done);
+  }
+
+  @override
+  void reset() {
+    _supported = false;
+
+    super.reset();
+  }
+}
+
+/// A mandatory manager that handles initial presence sending, sending of subscription
+/// request management requests and triggers events for incoming presence stanzas.
 class PresenceManager extends XmppManagerBase {
-  PresenceManager(this._capHashNode) : _capabilityHash = null, super();
+  PresenceManager() : super(presenceManager);
-  String? _capabilityHash;
-  final String _capHashNode;
 
-  String get capabilityHashNode => _capHashNode;
+  /// The list of pre-send callbacks.
+  final List<PresencePreSendCallback> _presenceCallbacks =
+      List.empty(growable: true);
 
-  @override
+  /// The priority of the presence handler. If a handler should run before this one,
-  String getId() => presenceManager;
+  /// which terminates processing, make sure the handler has a priority greater than
-
+  /// [presenceHandlerPriority].
-  @override
+  static int presenceHandlerPriority = -100;
-  String getName() => 'PresenceManager';
 
   @override
   List<StanzaHandler> getIncomingStanzaHandlers() => [
-    StanzaHandler(
+        StanzaHandler(
-      stanzaTag: 'presence',
+          stanzaTag: 'presence',
-      callback: _onPresence,
+          callback: _onPresence,
-    )
+          priority: presenceHandlerPriority,
-  ];
+        )
+      ];
 
   @override
-  List<String> getDiscoFeatures() => [ capsXmlns ];
+  List<String> getDiscoFeatures() => [capsXmlns];
 
   @override
   Future<bool> isSupported() async => true;
 
-  Future<StanzaHandlerData> _onPresence(Stanza presence, StanzaHandlerData state) async {
+  /// Register the pre-send callback [callback].
+  void registerPreSendCallback(PresencePreSendCallback callback) {
+    _presenceCallbacks.add(callback);
+  }
+
+  @override
+  Future<void> onXmppEvent(XmppEvent event) async {
+    if (event is StreamNegotiationsDoneEvent) {
+      // Send initial presence only when we have not resumed the stream
+      if (!event.resumed) {
+        await sendInitialPresence();
+      }
+    }
+  }
+
+  Future<StanzaHandlerData> _onPresence(
+    Stanza presence,
+    StanzaHandlerData state,
+  ) async {
     final attrs = getAttributes();
     switch (presence.type) {
       case 'subscribe':
-      case 'subscribed': {
+      case 'subscribed':
-        attrs.sendEvent(
+        {
-          SubscriptionRequestReceivedEvent(from: JID.fromString(presence.from!)),
+          attrs.sendEvent(
-        );
+            SubscriptionRequestReceivedEvent(
-        return state.copyWith(done: true);
+              from: JID.fromString(presence.from!),
-      }
+            ),
-      default: break;
+          );
+          return state..done = true;
+        }
+      default:
+        break;
     }
 
     if (presence.from != null) {
       logger.finest("Received presence from '${presence.from}'");
 
-      getAttributes().sendEvent(PresenceReceivedEvent(JID.fromString(presence.from!), presence));
+      return state..done = true;
-      return state.copyWith(done: true);
     }
 
     return state;
   }
 
-  /// Returns the capability hash.
-  Future<String> getCapabilityHash() async {
-    final manager = getAttributes().getManagerById(discoManager)! as DiscoManager;
-    _capabilityHash ??= await calculateCapabilityHash(
-      DiscoInfo(
-        manager.getRegisteredDiscoFeatures(),
-        manager.getIdentities(),
-        [],
-        getAttributes().getFullJID(),
-      ),
-      getHashByName('sha-1')!,
-    );
-
-    return _capabilityHash!;
-  }
-  
   /// Sends the initial presence to enable receiving messages.
   Future<void> sendInitialPresence() async {
+    final children = List<XMLNode>.from([
+      XMLNode(
+        tag: 'show',
+        text: 'chat',
+      ),
+    ]);
+
+    for (final callback in _presenceCallbacks) {
+      children.addAll(
+        await callback(),
+      );
+    }
+
     final attrs = getAttributes();
-    attrs.sendNonza(
+    await attrs.sendStanza(
-      Stanza.presence(
+      StanzaDetails(
-        from: attrs.getFullJID().toString(),
+        Stanza.presence(
-        children: [
+          children: children,
-          XMLNode(
+        ),
-            tag: 'show',
+        awaitable: false,
-            text: 'chat',
+        addId: false,
-          ),
-          XMLNode.xmlns(
-            tag: 'c',
-            xmlns: capsXmlns,
-            attributes: {
-              'hash': 'sha-1',
-              'node': _capHashNode,
-              'ver': await getCapabilityHash()
-            },
-          )
-        ],
       ),
     );
   }
 
   /// Send an unavailable presence with no 'to' attribute.
-  void sendUnavailablePresence() {
+  Future<void> sendUnavailablePresence() async {
-    getAttributes().sendStanza(
+    // Bypass the queue so that this get's sent immediately.
-      Stanza.presence(
+    // If we do it like this, we can also block the disconnection
-        type: 'unavailable',
+    // until we're actually ready.
+    await getAttributes().sendStanza(
+      StanzaDetails(
+        Stanza.presence(
+          type: 'unavailable',
+        ),
+        awaitable: false,
+        bypassQueue: true,
+        excludeFromStreamManagement: true,
       ),
-      addFrom: StanzaFromType.full,
     );
   }
 
+  /// Similar to [requestSubscription], but it also tells the server to automatically
+  /// accept a subscription request from [to], should it arrive.
+  /// This requires a [PresenceNegotiator] to be registered as this feature is optional.
+  ///
+  /// Returns true, when the stanza was sent. Returns false, when the stanza was not sent,
+  /// for example because the server does not support subscription pre-approvals.
+  Future<bool> preApproveSubscription(JID to) async {
+    final negotiator = getAttributes()
+        .getNegotiatorById<PresenceNegotiator>(presenceNegotiator);
+    assert(negotiator != null, 'No PresenceNegotiator registered');
+
+    if (!negotiator!.preApprovalSupported) {
+      return false;
+    }
+
+    await getAttributes().sendStanza(
+      StanzaDetails(
+        Stanza.presence(
+          type: 'subscribed',
+          to: to.toString(),
+        ),
+        awaitable: false,
+      ),
+    );
+    return true;
+  }
+
   /// Sends a subscription request to [to].
-  void sendSubscriptionRequest(String to) {
+  Future<void> requestSubscription(JID to) async {
-    getAttributes().sendStanza(
+    await getAttributes().sendStanza(
-      Stanza.presence(
+      StanzaDetails(
-        type: 'subscribe',
+        Stanza.presence(
-        to: to,
+          type: 'subscribe',
+          to: to.toString(),
+        ),
+        awaitable: false,
+      ),
+    );
+  }
+
+  /// Accept a subscription request from [to].
+  Future<void> acceptSubscriptionRequest(JID to) async {
+    await getAttributes().sendStanza(
+      StanzaDetails(
+        Stanza.presence(
+          type: 'subscribed',
+          to: to.toString(),
+        ),
+        awaitable: false,
+      ),
+    );
+  }
+
+  /// Send a subscription request rejection to [to].
+  Future<void> rejectSubscriptionRequest(JID to) async {
+    await getAttributes().sendStanza(
+      StanzaDetails(
+        Stanza.presence(
+          type: 'unsubscribed',
+          to: to.toString(),
+        ),
+        awaitable: false,
       ),
-      addFrom: StanzaFromType.none,
     );
   }
 
   /// Sends an unsubscription request to [to].
-  void sendUnsubscriptionRequest(String to) {
+  Future<void> unsubscribe(JID to) async {
-    getAttributes().sendStanza(
+    await getAttributes().sendStanza(
-      Stanza.presence(
+      StanzaDetails(
-        type: 'unsubscribe',
+        Stanza.presence(
-        to: to,
+          type: 'unsubscribe',
+          to: to.toString(),
+        ),
+        awaitable: false,
       ),
-      addFrom: StanzaFromType.none,
-    );
-  }
-
-  /// Accept a presence subscription request for [to].
-  void sendSubscriptionRequestApproval(String to) {
-    getAttributes().sendStanza(
-      Stanza.presence(
-        type: 'subscribed',
-        to: to,
-      ),
-      addFrom: StanzaFromType.none,
-    );
-  }
-
-  /// Reject a presence subscription request for [to].
-  void sendSubscriptionRequestRejection(String to) {
-    getAttributes().sendStanza(
-      Stanza.presence(
-        type: 'unsubscribed',
-        to: to,
-      ),
-      addFrom: StanzaFromType.none,
     );
   }
 }

packages/moxxmpp/lib/src/reconnect.dart

@@ -4,37 +4,66 @@ import 'package:logging/logging.dart';
 import 'package:meta/meta.dart';
 import 'package:synchronized/synchronized.dart';
 
-abstract class ReconnectionPolicy {
+/// A callback function to be called when the connection to the server has been lost.
+typedef ConnectionLostCallback = Future<void> Function();
 
-  ReconnectionPolicy()
+/// A function that, when called, causes the XmppConnection to connect to the server, if
-    : _shouldAttemptReconnection = false,
+/// another reconnection is not already running.
-      _isReconnecting = false,
+typedef PerformReconnectFunction = Future<void> Function();
-      _isReconnectingLock = Lock();
+
+abstract class ReconnectionPolicy {
   /// Function provided by XmppConnection that allows the policy
   /// to perform a reconnection.
-  Future<void> Function()? performReconnect;
+  PerformReconnectFunction? performReconnect;
-  /// Function provided by XmppConnection that allows the policy
+
-  /// to say that we lost the connection.
+  final Lock _lock = Lock();
-  void Function()? triggerConnectionLost;
+
-  /// Indicate if should try to reconnect.
-  bool _shouldAttemptReconnection;
   /// Indicate if a reconnection attempt is currently running.
-  bool _isReconnecting;
+  bool _isReconnecting = false;
-  /// And the corresponding lock
+
-  final Lock _isReconnectingLock;
+  /// Indicate if should try to reconnect.
+  bool _shouldAttemptReconnection = false;
+
+  @protected
+  Future<bool> canTryReconnecting() async =>
+      _lock.synchronized(() => !_isReconnecting);
+
+  @protected
+  Future<bool> getIsReconnecting() async =>
+      _lock.synchronized(() => _isReconnecting);
+
+  Future<void> _resetIsReconnecting() async {
+    await _lock.synchronized(() {
+      _isReconnecting = false;
+    });
+  }
 
   /// Called by XmppConnection to register the policy.
-  void register(Future<void> Function() performReconnect, void Function() triggerConnectionLost) {
+  void register(
+    PerformReconnectFunction performReconnect,
+  ) {
     this.performReconnect = performReconnect;
-    this.triggerConnectionLost = triggerConnectionLost;
-
-    unawaited(reset());
   }
 
   /// In case the policy depends on some internal state, this state must be reset
   /// to an initial state when reset is called. In case timers run, they must be
   /// terminated.
-  Future<void> reset();
+  @mustCallSuper
+  Future<void> reset() async {
+    await _resetIsReconnecting();
+  }
+
+  @mustCallSuper
+  Future<bool> canTriggerFailure() async {
+    return _lock.synchronized(() {
+      if (_shouldAttemptReconnection && !_isReconnecting) {
+        _isReconnecting = true;
+        return true;
+      }
+
+      return false;
+    });
+  }
 
   /// Called by the XmppConnection when the reconnection failed.
   Future<void> onFailure() async {}
@@ -42,99 +71,112 @@ abstract class ReconnectionPolicy {
   /// Caled by the XmppConnection when the reconnection was successful.
   Future<void> onSuccess();
 
-  bool get shouldReconnect => _shouldAttemptReconnection;
+  Future<bool> getShouldReconnect() async {
+    return _lock.synchronized(() => _shouldAttemptReconnection);
+  }
 
   /// Set whether a reconnection attempt should be made.
-  void setShouldReconnect(bool value) {
+  Future<void> setShouldReconnect(bool value) async {
-    _shouldAttemptReconnection = value;
+    return _lock.synchronized(() => _shouldAttemptReconnection = value);
-  }
-
-  /// Returns true if the manager is currently triggering a reconnection. If not, returns
-  /// false.
-  Future<bool> isReconnectionRunning() async {
-    return _isReconnectingLock.synchronized(() => _isReconnecting);
-  }
-
-  /// Set the _isReconnecting state to [value].
-  @protected
-  Future<void> setIsReconnecting(bool value) async {
-    await _isReconnectingLock.synchronized(() async {
-      _isReconnecting = value;
-    });
-  }
-
-  @protected
-  Future<bool> testAndSetIsReconnecting() async {
-    return _isReconnectingLock.synchronized(() {
-      if (_isReconnecting) {
-        return false;
-      } else {
-        _isReconnecting = true;
-        return true;
-      }
-    });
   }
 }
 
 /// A simple reconnection strategy: Make the reconnection delays exponentially longer
 /// for every failed attempt.
-class ExponentialBackoffReconnectionPolicy extends ReconnectionPolicy {
+/// NOTE: This ReconnectionPolicy may be broken
+class RandomBackoffReconnectionPolicy extends ReconnectionPolicy {
+  RandomBackoffReconnectionPolicy(
+    this._minBackoffTime,
+    this._maxBackoffTime,
+  )   : assert(
+          _minBackoffTime < _maxBackoffTime,
+          '_minBackoffTime must be smaller than _maxBackoffTime',
+        ),
+        super();
 
-  ExponentialBackoffReconnectionPolicy()
+  /// The maximum time in seconds that a backoff should be.
-  : _counter = 0,
+  final int _maxBackoffTime;
-    _log = Logger('ExponentialBackoffReconnectionPolicy'),
+
-    super();
+  /// The minimum time in seconds that a backoff should be.
-  int _counter;
+  final int _minBackoffTime;
+
+  /// Backoff timer.
   Timer? _timer;
-  final Logger _log;
+
+  /// Logger.
+  final Logger _log = Logger('RandomBackoffReconnectionPolicy');
+
+  final Lock _timerLock = Lock();
 
   /// Called when the backoff expired
-  Future<void> _onTimerElapsed() async {
+  @visibleForTesting
-    final isReconnecting = await isReconnectionRunning();
+  Future<void> onTimerElapsed() async {
-    if (shouldReconnect) {
+    _log.finest('Timer elapsed. Waiting for lock...');
-      if (!isReconnecting) {
+    final shouldContinue = await _timerLock.synchronized(() async {
-        await performReconnect!();
+      _log.finest('Timer lock aquired');
-      } else {
+      if (_timer == null) {
-        // Should never happen.
+        _log.finest(
-        _log.fine('Backoff timer expired but reconnection is running, so doing nothing.');
+          'The timer is already set to null. Doing nothing.',
+        );
+        return false;
       }
+
+      if (!(await getIsReconnecting())) {
+        return false;
+      }
+
+      if (!(await getShouldReconnect())) {
+        _log.finest(
+          'Should not reconnect. Stopping here.',
+        );
+        return false;
+      }
+
+      _timer?.cancel();
+      _timer = null;
+      return true;
+    });
+
+    if (!shouldContinue) {
+      return;
     }
+
+    _log.fine('Triggering reconnect');
+    await performReconnect!();
   }
 
   @override
   Future<void> reset() async {
     _log.finest('Resetting internal state');
-    _counter = 0;
+    await _timerLock.synchronized(() {
-    await setIsReconnecting(false);
+      _timer?.cancel();
-
-    if (_timer != null) {
-      _timer!.cancel();
       _timer = null;
-    }
+    });
+    await super.reset();
   }
 
   @override
   Future<void> onFailure() async {
-    _log.finest('Failure occured. Starting exponential backoff');
+    final seconds =
-    _counter++;
+        Random().nextInt(_maxBackoffTime - _minBackoffTime) + _minBackoffTime;
-    await setIsReconnecting(true);
+    _log.finest('Failure occured. Starting random backoff with ${seconds}s');
 
-    if (_timer != null) {
+    await _timerLock.synchronized(() {
-      _timer!.cancel();
+      _timer?.cancel();
-    }
+      _timer = Timer(Duration(seconds: seconds), onTimerElapsed);
-
+    });
-    // Wait at max 80 seconds.
-    final seconds = min(pow(2, _counter).toInt(), 80);
-    _timer = Timer(Duration(seconds: seconds), _onTimerElapsed);
   }
 
   @override
   Future<void> onSuccess() async {
     await reset();
   }
+
+  @visibleForTesting
+  bool isTimerRunning() => _timer != null;
 }
 
-/// A stub reconnection policy for tests
+/// A stub reconnection policy for tests.
 @visibleForTesting
 class TestingReconnectionPolicy extends ReconnectionPolicy {
   TestingReconnectionPolicy() : super();
@@ -146,5 +188,29 @@ class TestingReconnectionPolicy extends ReconnectionPolicy {
   Future<void> onFailure() async {}
 
   @override
-  Future<void> reset() async {}
+  Future<void> reset() async {
+    await super.reset();
+  }
+}
+
+/// A reconnection policy for tests that waits a constant number of seconds before
+/// attempting a reconnection.
+@visibleForTesting
+class TestingSleepReconnectionPolicy extends ReconnectionPolicy {
+  TestingSleepReconnectionPolicy(this._sleepAmount) : super();
+  final int _sleepAmount;
+
+  @override
+  Future<void> onSuccess() async {}
+
+  @override
+  Future<void> onFailure() async {
+    await Future<void>.delayed(Duration(seconds: _sleepAmount));
+    await performReconnect!();
+  }
+
+  @override
+  Future<void> reset() async {
+    await super.reset();
+  }
 }

packages/moxxmpp/lib/src/rfcs/rfc_4790.dart

@@ -24,3 +24,28 @@ int ioctetSortComparator(String a, String b) {
 
   return 1;
 }
+
+int ioctetSortComparatorRaw(List<int> a, List<int> b) {
+  if (a.isEmpty && b.isEmpty) {
+    return 0;
+  }
+
+  if (a.isEmpty && b.isNotEmpty) {
+    return -1;
+  }
+
+  if (a.isNotEmpty && b.isEmpty) {
+    return 1;
+  }
+
+  if (a[0] == b[0]) {
+    return ioctetSortComparatorRaw(a.sublist(1), b.sublist(1));
+  }
+
+  // TODO(Unknown): Is this correct?
+  if (a[0] < b[0]) {
+    return -1;
+  }
+
+  return 1;
+}