♻️ Splitting up ipc servers in unix and windows
This commit is contained in:
460
lib/pods/activity/activity_rpc.dart
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460
lib/pods/activity/activity_rpc.dart
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import 'dart:async';
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import 'dart:convert';
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import 'dart:developer' as developer;
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:hooks_riverpod/hooks_riverpod.dart';
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import 'package:island/pods/network.dart';
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import 'package:shelf/shelf.dart';
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import 'package:shelf/shelf_io.dart' as shelf_io;
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import 'package:shelf_web_socket/shelf_web_socket.dart';
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import 'package:web_socket_channel/web_socket_channel.dart';
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import 'ipc_server.dart';
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import 'ipc_server.windows.dart';
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import 'ipc_server.unix.dart';
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const String kRpcLogPrefix = 'arRPC.websocket';
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const String kRpcIpcLogPrefix = 'arRPC.ipc';
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// IPC Constants
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const String kIpcBasePath = 'discord-ipc';
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// IPC Packet Types
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class IpcTypes {
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static const int handshake = 0;
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static const int frame = 1;
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static const int close = 2;
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static const int ping = 3;
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static const int pong = 4;
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}
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// IPC Close Codes
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class IpcCloseCodes {
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static const int closeNormal = 1000;
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static const int closeUnsupported = 1003;
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static const int closeAbnormal = 1006;
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}
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// IPC Error Codes
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class IpcErrorCodes {
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static const int invalidClientId = 4000;
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static const int invalidOrigin = 4001;
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static const int rateLimited = 4002;
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static const int tokenRevoked = 4003;
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static const int invalidVersion = 4004;
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static const int invalidEncoding = 4005;
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}
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// Reference https://github.com/OpenAsar/arrpc/blob/main/src/transports/ipc.js
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class ActivityRpcServer {
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static const List<int> portRange = [6463, 6472]; // Ports 6463–6472
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Map<String, Function>
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handlers; // {connection: (socket), message: (socket, data), close: (socket)}
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HttpServer? _httpServer;
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IpcServer? _ipcServer;
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final List<WebSocketChannel> _wsSockets = [];
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ActivityRpcServer(this.handlers);
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void updateHandlers(Map<String, Function> newHandlers) {
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handlers = newHandlers;
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}
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// Start the server
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Future<void> start() async {
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int port = portRange[0];
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bool wsSuccess = false;
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// Start WebSocket server
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while (port <= portRange[1]) {
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developer.log('Trying port $port', name: kRpcLogPrefix);
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try {
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_httpServer = await HttpServer.bind(InternetAddress.loopbackIPv4, port);
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developer.log('Listening on $port', name: kRpcLogPrefix);
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shelf_io.serveRequests(_httpServer!, (Request request) async {
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developer.log('New request', name: kRpcLogPrefix);
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if (request.headers['upgrade']?.toLowerCase() == 'websocket') {
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final handler = webSocketHandler((WebSocketChannel channel, _) {
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_wsSockets.add(channel);
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_onWsConnection(channel, request);
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});
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return handler(request);
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}
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developer.log(
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'New request disposed due to not websocket',
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name: kRpcLogPrefix,
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);
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return Response.notFound('Not a WebSocket request');
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});
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wsSuccess = true;
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break;
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} catch (e) {
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if (e is SocketException && e.osError?.errorCode == 98) {
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developer.log('$port in use!', name: kRpcLogPrefix);
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} else {
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developer.log('HTTP error: $e', name: kRpcLogPrefix);
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}
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port++;
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await Future.delayed(Duration(milliseconds: 100)); // Add delay
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}
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}
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if (!wsSuccess) {
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throw Exception(
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'Failed to bind to any port in range ${portRange[0]}–${portRange[1]}',
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);
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}
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// Start IPC server
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final shouldStartIpc = !Platform.isMacOS && !kIsWeb;
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if (shouldStartIpc) {
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try {
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if (Platform.isWindows) {
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_ipcServer = WindowsIpcServer();
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} else {
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_ipcServer = UnixIpcServer();
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}
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// Set up IPC handlers
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_ipcServer!.handlePacket = (socket, packet, _) {
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_handleIpcPacket(socket, packet);
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};
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await _ipcServer!.start();
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} catch (e) {
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developer.log('IPC server error: $e', name: kRpcIpcLogPrefix);
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}
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} else {
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developer.log(
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'IPC server disabled on macOS or web in production mode',
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name: kRpcIpcLogPrefix,
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);
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}
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}
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// Stop the server
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Future<void> stop() async {
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// Stop WebSocket server
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for (var socket in _wsSockets) {
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try {
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await socket.sink.close();
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} catch (e) {
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developer.log('Error closing WebSocket: $e', name: kRpcLogPrefix);
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}
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}
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_wsSockets.clear();
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await _httpServer?.close(force: true);
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// Stop IPC server
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await _ipcServer?.stop();
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developer.log('Servers stopped', name: kRpcLogPrefix);
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}
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// Handle new WebSocket connection
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void _onWsConnection(WebSocketChannel socket, Request request) {
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final uri = request.url;
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final params = uri.queryParameters;
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final ver = int.tryParse(params['v'] ?? '1') ?? 1;
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final encoding = params['encoding'] ?? 'json';
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final clientId = params['client_id'] ?? '';
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final origin = request.headers['origin'] ?? '';
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developer.log(
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'New WS connection! origin: $origin, params: $params',
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name: kRpcLogPrefix,
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);
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if (origin.isNotEmpty &&
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![
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'https://discord.com',
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'https://ptb.discord.com',
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'https://canary.discord.com',
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].contains(origin)) {
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developer.log('Disallowed origin: $origin', name: kRpcLogPrefix);
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socket.sink.close();
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return;
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}
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if (encoding != 'json') {
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developer.log(
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'Unsupported encoding requested: $encoding',
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name: kRpcLogPrefix,
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);
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socket.sink.close();
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return;
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}
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if (ver != 1) {
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developer.log('Unsupported version requested: $ver', name: kRpcLogPrefix);
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socket.sink.close();
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return;
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}
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final socketWithMeta = _WsSocketWrapper(socket, clientId, encoding);
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socket.stream.listen(
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(data) => _onWsMessage(socketWithMeta, data),
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onError: (e) {
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developer.log('WS socket error: $e', name: kRpcLogPrefix);
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},
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onDone: () {
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developer.log('WS socket closed', name: kRpcLogPrefix);
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handlers['close']?.call(socketWithMeta);
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_wsSockets.remove(socket);
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},
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);
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handlers['connection']?.call(socketWithMeta);
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}
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// Handle incoming WebSocket message
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Future<void> _onWsMessage(_WsSocketWrapper socket, dynamic data) async {
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if (data is! String) {
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developer.log(
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'Invalid WebSocket message: not a string',
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name: kRpcLogPrefix,
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);
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return;
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}
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try {
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final jsonData = await compute(jsonDecode, data);
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if (jsonData is! Map<String, dynamic>) {
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developer.log(
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'Invalid WebSocket message: not a JSON object',
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name: kRpcLogPrefix,
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);
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return;
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}
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developer.log('WS message: $jsonData', name: kRpcLogPrefix);
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handlers['message']?.call(socket, jsonData);
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} catch (e) {
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developer.log('WS message parse error: $e', name: kRpcLogPrefix);
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}
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}
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// Handle IPC packet
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void _handleIpcPacket(IpcSocketWrapper socket, IpcPacket packet) {
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switch (packet.type) {
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case IpcTypes.ping:
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developer.log('IPC ping received', name: kRpcIpcLogPrefix);
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socket.sendPong(packet.data);
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break;
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case IpcTypes.pong:
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developer.log('IPC pong received', name: kRpcIpcLogPrefix);
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break;
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case IpcTypes.handshake:
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if (socket.handshook) {
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throw Exception('Already handshook');
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}
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socket.handshook = true;
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_onIpcHandshake(socket, packet.data);
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break;
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case IpcTypes.frame:
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if (!socket.handshook) {
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throw Exception('Need to handshake first');
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}
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developer.log('IPC frame: ${packet.data}', name: kRpcIpcLogPrefix);
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handlers['message']?.call(socket, packet.data);
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break;
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case IpcTypes.close:
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socket.close();
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break;
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default:
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throw Exception('Invalid packet type: ${packet.type}');
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}
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}
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// Handle IPC handshake
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void _onIpcHandshake(IpcSocketWrapper socket, Map<String, dynamic> params) {
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developer.log('IPC handshake: $params', name: kRpcIpcLogPrefix);
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final ver = int.tryParse(params['v']?.toString() ?? '1') ?? 1;
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final clientId = params['client_id']?.toString() ?? '';
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if (ver != 1) {
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developer.log(
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'IPC unsupported version requested: $ver',
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name: kRpcIpcLogPrefix,
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);
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socket.closeWithCode(IpcErrorCodes.invalidVersion);
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return;
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}
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if (clientId.isEmpty) {
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developer.log('IPC client ID required', name: kRpcIpcLogPrefix);
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socket.closeWithCode(IpcErrorCodes.invalidClientId);
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return;
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}
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socket.clientId = clientId;
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handlers['connection']?.call(socket);
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}
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}
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// WebSocket wrapper
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class _WsSocketWrapper {
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final WebSocketChannel channel;
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final String clientId;
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final String encoding;
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_WsSocketWrapper(this.channel, this.clientId, this.encoding);
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void send(Map<String, dynamic> msg) {
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developer.log('WS sending: $msg', name: kRpcLogPrefix);
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channel.sink.add(jsonEncode(msg));
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}
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}
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// State management for server status and activities
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class ServerState {
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final String status;
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final List<String> activities;
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ServerState({required this.status, this.activities = const []});
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ServerState copyWith({String? status, List<String>? activities}) {
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return ServerState(
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status: status ?? this.status,
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activities: activities ?? this.activities,
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);
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}
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}
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class ServerStateNotifier extends StateNotifier<ServerState> {
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final ActivityRpcServer server;
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ServerStateNotifier(this.server)
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: super(ServerState(status: 'Server not started'));
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Future<void> start() async {
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if (!Platform.isAndroid && !Platform.isIOS && !kIsWeb) {
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try {
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await server.start();
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state = state.copyWith(status: 'Server running');
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} catch (e) {
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state = state.copyWith(status: 'Server failed: $e');
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}
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} else {
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state = state.copyWith(status: 'Server disabled on mobile/web');
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}
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}
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void updateStatus(String status) {
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state = state.copyWith(status: status);
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}
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void addActivity(String activity) {
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state = state.copyWith(activities: [...state.activities, activity]);
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}
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}
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// Providers
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final rpcServerStateProvider =
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StateNotifierProvider<ServerStateNotifier, ServerState>((ref) {
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final server = ActivityRpcServer({});
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final notifier = ServerStateNotifier(server);
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server.updateHandlers({
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'connection': (socket) {
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final clientId =
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socket is _WsSocketWrapper
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? socket.clientId
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: (socket as IpcSocketWrapper).clientId;
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notifier.updateStatus('Client connected (ID: $clientId)');
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socket.send({
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'cmd': 'DISPATCH',
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'data': {
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'v': 1,
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'config': {
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'cdn_host': 'fake.cdn',
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'api_endpoint': '//fake.api',
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'environment': 'dev',
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},
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'user': {
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'id': 'fake_user_id',
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'username': 'FakeUser',
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'discriminator': '0001',
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'avatar': null,
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'bot': false,
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},
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},
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'evt': 'READY',
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'nonce': '12345',
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});
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},
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'message': (socket, dynamic data) async {
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if (data['cmd'] == 'SET_ACTIVITY') {
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notifier.addActivity(
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'Activity: ${data['args']['activity']['details'] ?? 'Unknown'}',
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);
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final label = data['args']['activity']['details'] ?? 'Unknown';
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final appId = socket.clientId;
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try {
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await setRemoteActivityStatus(ref, label, appId);
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} catch (e) {
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developer.log(
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'Failed to set remote activity status: $e',
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name: kRpcLogPrefix,
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);
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}
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socket.send({
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'cmd': 'SET_ACTIVITY',
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'data': data['args']['activity'],
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'evt': null,
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'nonce': data['nonce'],
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});
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}
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},
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'close': (socket) async {
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notifier.updateStatus('Client disconnected');
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final appId = socket.clientId;
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try {
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await unsetRemoteActivityStatus(ref, appId);
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} catch (e) {
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developer.log(
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'Failed to unset remote activity status: $e',
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name: kRpcLogPrefix,
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);
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}
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},
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});
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return notifier;
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});
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final rpcServerProvider = Provider<ActivityRpcServer>((ref) {
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final notifier = ref.watch(rpcServerStateProvider.notifier);
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return notifier.server;
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});
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Future<void> setRemoteActivityStatus(
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Ref ref,
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String label,
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String appId,
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) async {
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final apiClient = ref.read(apiClientProvider);
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await apiClient.post(
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'/id/accounts/me/statuses',
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data: {
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'is_invisible': false,
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'is_not_disturb': false,
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'is_automated': true,
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'label': label,
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'app_identifier': appId,
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},
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);
|
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}
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Future<void> unsetRemoteActivityStatus(Ref ref, String appId) async {
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final apiClient = ref.read(apiClientProvider);
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await apiClient.delete(
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'/id/accounts/me/statuses',
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queryParameters: {'app': appId},
|
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);
|
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}
|
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118
lib/pods/activity/ipc_server.dart
Normal file
118
lib/pods/activity/ipc_server.dart
Normal file
@@ -0,0 +1,118 @@
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import 'dart:async';
|
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import 'dart:convert';
|
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import 'dart:typed_data';
|
||||
|
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const String kRpcIpcLogPrefix = 'arRPC.ipc';
|
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|
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// IPC Packet Types
|
||||
class IpcTypes {
|
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static const int handshake = 0;
|
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static const int frame = 1;
|
||||
static const int close = 2;
|
||||
static const int ping = 3;
|
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static const int pong = 4;
|
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}
|
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|
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// IPC Close Codes
|
||||
class IpcCloseCodes {
|
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static const int closeNormal = 1000;
|
||||
static const int closeUnsupported = 1003;
|
||||
static const int closeAbnormal = 1006;
|
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}
|
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|
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// IPC Error Codes
|
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class IpcErrorCodes {
|
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static const int invalidClientId = 4000;
|
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static const int invalidOrigin = 4001;
|
||||
static const int rateLimited = 4002;
|
||||
static const int tokenRevoked = 4003;
|
||||
static const int invalidVersion = 4004;
|
||||
static const int invalidEncoding = 4005;
|
||||
}
|
||||
|
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// IPC Packet structure
|
||||
class IpcPacket {
|
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final int type;
|
||||
final Map<String, dynamic> data;
|
||||
|
||||
IpcPacket(this.type, this.data);
|
||||
}
|
||||
|
||||
// Abstract base class for IPC server
|
||||
abstract class IpcServer {
|
||||
final List<IpcSocketWrapper> _sockets = [];
|
||||
|
||||
// Encode IPC packet
|
||||
static Uint8List encodeIpcPacket(int type, Map<String, dynamic> data) {
|
||||
final jsonData = jsonEncode(data);
|
||||
final dataBytes = utf8.encode(jsonData);
|
||||
final dataSize = dataBytes.length;
|
||||
|
||||
final buffer = ByteData(8 + dataSize);
|
||||
buffer.setInt32(0, type, Endian.little);
|
||||
buffer.setInt32(4, dataSize, Endian.little);
|
||||
buffer.buffer.asUint8List().setRange(8, 8 + dataSize, dataBytes);
|
||||
|
||||
return buffer.buffer.asUint8List();
|
||||
}
|
||||
|
||||
Future<void> start();
|
||||
Future<void> stop();
|
||||
|
||||
void addSocket(IpcSocketWrapper socket) {
|
||||
_sockets.add(socket);
|
||||
}
|
||||
|
||||
void removeSocket(IpcSocketWrapper socket) {
|
||||
_sockets.remove(socket);
|
||||
}
|
||||
|
||||
List<IpcSocketWrapper> get sockets => _sockets;
|
||||
|
||||
void Function(
|
||||
IpcSocketWrapper socket,
|
||||
IpcPacket packet,
|
||||
Map<String, Function> handlers,
|
||||
)?
|
||||
handlePacket;
|
||||
}
|
||||
|
||||
// Abstract base class for IPC socket wrapper
|
||||
abstract class IpcSocketWrapper {
|
||||
String clientId = '';
|
||||
bool handshook = false;
|
||||
final List<int> _buffer = [];
|
||||
|
||||
void addData(List<int> data) {
|
||||
_buffer.addAll(data);
|
||||
}
|
||||
|
||||
void send(Map<String, dynamic> msg);
|
||||
void sendPong(dynamic data);
|
||||
void close();
|
||||
void closeWithCode(int code, [String message = '']);
|
||||
|
||||
List<IpcPacket> readPackets() {
|
||||
final packets = <IpcPacket>[];
|
||||
|
||||
while (_buffer.length >= 8) {
|
||||
final buffer = Uint8List.fromList(_buffer);
|
||||
final byteData = ByteData.view(buffer.buffer);
|
||||
|
||||
final type = byteData.getInt32(0, Endian.little);
|
||||
final dataSize = byteData.getInt32(4, Endian.little);
|
||||
|
||||
if (_buffer.length < 8 + dataSize) break;
|
||||
|
||||
final dataBytes = _buffer.sublist(8, 8 + dataSize);
|
||||
final jsonStr = utf8.decode(dataBytes);
|
||||
final jsonData = jsonDecode(jsonStr);
|
||||
|
||||
packets.add(IpcPacket(type, jsonData));
|
||||
|
||||
_buffer.removeRange(0, 8 + dataSize);
|
||||
}
|
||||
|
||||
return packets;
|
||||
}
|
||||
}
|
||||
203
lib/pods/activity/ipc_server.unix.dart
Normal file
203
lib/pods/activity/ipc_server.unix.dart
Normal file
@@ -0,0 +1,203 @@
|
||||
import 'dart:async';
|
||||
import 'dart:developer' as developer;
|
||||
import 'dart:io';
|
||||
import 'package:path/path.dart' as path;
|
||||
import 'ipc_server.dart';
|
||||
|
||||
class UnixIpcServer extends IpcServer {
|
||||
ServerSocket? _ipcServer;
|
||||
|
||||
@override
|
||||
Future<void> start() async {
|
||||
final ipcPath = await _findAvailableIpcPath();
|
||||
_ipcServer = await ServerSocket.bind(
|
||||
InternetAddress(ipcPath, type: InternetAddressType.unix),
|
||||
0,
|
||||
);
|
||||
developer.log('IPC listening at $ipcPath', name: kRpcIpcLogPrefix);
|
||||
|
||||
_ipcServer!.listen((Socket socket) {
|
||||
_onIpcConnection(socket);
|
||||
});
|
||||
}
|
||||
|
||||
@override
|
||||
Future<void> stop() async {
|
||||
for (var socket in sockets) {
|
||||
try {
|
||||
socket.close();
|
||||
} catch (e) {
|
||||
developer.log('Error closing IPC socket: $e', name: kRpcIpcLogPrefix);
|
||||
}
|
||||
}
|
||||
sockets.clear();
|
||||
await _ipcServer?.close();
|
||||
}
|
||||
|
||||
// Handle new IPC connection
|
||||
void _onIpcConnection(Socket socket) {
|
||||
developer.log('New IPC connection!', name: kRpcIpcLogPrefix);
|
||||
|
||||
final socketWrapper = UnixIpcSocketWrapper(socket);
|
||||
addSocket(socketWrapper);
|
||||
|
||||
socket.listen(
|
||||
(data) => _onIpcData(socketWrapper, data),
|
||||
onError: (e) {
|
||||
developer.log('IPC socket error: $e', name: kRpcIpcLogPrefix);
|
||||
socket.close();
|
||||
},
|
||||
onDone: () {
|
||||
developer.log('IPC socket closed', name: kRpcIpcLogPrefix);
|
||||
removeSocket(socketWrapper);
|
||||
},
|
||||
);
|
||||
}
|
||||
|
||||
// Handle incoming IPC data
|
||||
void _onIpcData(UnixIpcSocketWrapper socket, List<int> data) {
|
||||
try {
|
||||
socket.addData(data);
|
||||
final packets = socket.readPackets();
|
||||
for (final packet in packets) {
|
||||
handlePacket?.call(socket, packet, {});
|
||||
}
|
||||
} catch (e) {
|
||||
developer.log('IPC data error: $e', name: kRpcIpcLogPrefix);
|
||||
socket.closeWithCode(IpcCloseCodes.closeUnsupported, e.toString());
|
||||
}
|
||||
}
|
||||
|
||||
// Handle IPC handshake
|
||||
void _onIpcHandshake(
|
||||
IpcSocketWrapper socket,
|
||||
Map<String, dynamic> params,
|
||||
Map<String, Function> handlers,
|
||||
) {
|
||||
developer.log('IPC handshake: $params', name: kRpcIpcLogPrefix);
|
||||
|
||||
final ver = int.tryParse(params['v']?.toString() ?? '1') ?? 1;
|
||||
final clientId = params['client_id']?.toString() ?? '';
|
||||
|
||||
if (ver != 1) {
|
||||
developer.log(
|
||||
'IPC unsupported version requested: $ver',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
socket.closeWithCode(IpcErrorCodes.invalidVersion);
|
||||
return;
|
||||
}
|
||||
|
||||
if (clientId.isEmpty) {
|
||||
developer.log('IPC client ID required', name: kRpcIpcLogPrefix);
|
||||
socket.closeWithCode(IpcErrorCodes.invalidClientId);
|
||||
return;
|
||||
}
|
||||
|
||||
socket.clientId = clientId;
|
||||
|
||||
handlers['connection']?.call(socket);
|
||||
}
|
||||
|
||||
Future<String> _getMacOsSystemTmpDir() async {
|
||||
final result = await Process.run('getconf', ['DARWIN_USER_TEMP_DIR']);
|
||||
return (result.stdout as String).trim();
|
||||
}
|
||||
|
||||
// Find available IPC socket path
|
||||
Future<String> _findAvailableIpcPath() async {
|
||||
// Build list of directories to try, with macOS-specific handling
|
||||
final baseDirs = <String>[];
|
||||
|
||||
if (Platform.isMacOS) {
|
||||
try {
|
||||
final macTempDir = await _getMacOsSystemTmpDir();
|
||||
if (macTempDir.isNotEmpty) {
|
||||
baseDirs.add(macTempDir);
|
||||
}
|
||||
} catch (e) {
|
||||
developer.log(
|
||||
'Failed to get macOS system temp dir: $e',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// Add other standard directories
|
||||
final otherDirs = [
|
||||
Platform.environment['XDG_RUNTIME_DIR'],
|
||||
Platform.environment['TMPDIR'],
|
||||
Platform.environment['TMP'],
|
||||
Platform.environment['TEMP'],
|
||||
'/tmp',
|
||||
];
|
||||
|
||||
baseDirs.addAll(
|
||||
otherDirs.where((dir) => dir != null && dir.isNotEmpty).cast<String>(),
|
||||
);
|
||||
|
||||
for (final baseDir in baseDirs) {
|
||||
for (int i = 0; i < 10; i++) {
|
||||
final socketPath = path.join(baseDir, 'discord-ipc-$i');
|
||||
try {
|
||||
final socket = await ServerSocket.bind(
|
||||
InternetAddress(socketPath, type: InternetAddressType.unix),
|
||||
0,
|
||||
);
|
||||
socket.close();
|
||||
try {
|
||||
await File(socketPath).delete();
|
||||
} catch (_) {}
|
||||
developer.log(
|
||||
'IPC socket will be created at: $socketPath',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
return socketPath;
|
||||
} catch (e) {
|
||||
if (i == 0) {
|
||||
developer.log(
|
||||
'IPC path $socketPath not available: $e',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
throw Exception(
|
||||
'No available IPC socket paths found in any temp directory',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class UnixIpcSocketWrapper extends IpcSocketWrapper {
|
||||
final Socket socket;
|
||||
|
||||
UnixIpcSocketWrapper(this.socket);
|
||||
|
||||
@override
|
||||
void send(Map<String, dynamic> msg) {
|
||||
developer.log('IPC sending: $msg', name: kRpcIpcLogPrefix);
|
||||
final packet = IpcServer.encodeIpcPacket(IpcTypes.frame, msg);
|
||||
socket.add(packet);
|
||||
}
|
||||
|
||||
@override
|
||||
void sendPong(dynamic data) {
|
||||
final packet = IpcServer.encodeIpcPacket(IpcTypes.pong, data ?? {});
|
||||
socket.add(packet);
|
||||
}
|
||||
|
||||
@override
|
||||
void close() {
|
||||
socket.close();
|
||||
}
|
||||
|
||||
@override
|
||||
void closeWithCode(int code, [String message = '']) {
|
||||
final closeData = {'code': code, 'message': message};
|
||||
final packet = IpcServer.encodeIpcPacket(IpcTypes.close, closeData);
|
||||
socket.add(packet);
|
||||
socket.close();
|
||||
}
|
||||
}
|
||||
273
lib/pods/activity/ipc_server.windows.dart
Normal file
273
lib/pods/activity/ipc_server.windows.dart
Normal file
@@ -0,0 +1,273 @@
|
||||
import 'dart:async';
|
||||
import 'dart:developer' as developer;
|
||||
import 'dart:ffi';
|
||||
import 'dart:io';
|
||||
import 'dart:isolate';
|
||||
import 'package:ffi/ffi.dart';
|
||||
import 'package:win32/win32.dart';
|
||||
import 'ipc_server.dart';
|
||||
|
||||
class WindowsIpcServer extends IpcServer {
|
||||
int? _pipeHandle;
|
||||
Timer? _ipcTimer;
|
||||
|
||||
@override
|
||||
Future<void> start() async {
|
||||
final pipeName = r'\\.\pipe\discord-ipc'.toNativeUtf16();
|
||||
try {
|
||||
_pipeHandle = CreateNamedPipe(
|
||||
pipeName,
|
||||
PIPE_ACCESS_DUPLEX,
|
||||
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
|
||||
PIPE_UNLIMITED_INSTANCES,
|
||||
4096, // Output buffer size
|
||||
4096, // Input buffer size
|
||||
0, // Default timeout
|
||||
nullptr, // Security attributes
|
||||
);
|
||||
|
||||
if (_pipeHandle == INVALID_HANDLE_VALUE) {
|
||||
final error = GetLastError();
|
||||
throw Exception('Failed to create named pipe: error code $error');
|
||||
}
|
||||
|
||||
developer.log(
|
||||
'IPC named pipe created at \\\\.\\pipe\\discord-ipc',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
|
||||
// Start listening for connections in a separate isolate
|
||||
_listenWindowsIpc();
|
||||
} finally {
|
||||
free(pipeName);
|
||||
}
|
||||
}
|
||||
|
||||
@override
|
||||
Future<void> stop() async {
|
||||
for (var socket in sockets) {
|
||||
try {
|
||||
socket.close();
|
||||
} catch (e) {
|
||||
developer.log('Error closing IPC socket: $e', name: kRpcIpcLogPrefix);
|
||||
}
|
||||
}
|
||||
sockets.clear();
|
||||
|
||||
if (_pipeHandle != null) {
|
||||
try {
|
||||
CloseHandle(_pipeHandle!);
|
||||
} catch (e) {
|
||||
developer.log('Error closing named pipe: $e', name: kRpcIpcLogPrefix);
|
||||
}
|
||||
_pipeHandle = null;
|
||||
}
|
||||
_ipcTimer?.cancel();
|
||||
}
|
||||
|
||||
// Listen for Windows IPC connections in an isolate
|
||||
void _listenWindowsIpc() async {
|
||||
final receivePort = ReceivePort();
|
||||
await Isolate.spawn(_windowsIpcIsolate, receivePort.sendPort);
|
||||
|
||||
receivePort.listen((message) {
|
||||
if (message is int) {
|
||||
final socketWrapper = WindowsIpcSocketWrapper(message);
|
||||
addSocket(socketWrapper);
|
||||
developer.log(
|
||||
'New IPC connection on named pipe',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
_handleWindowsIpcData(socketWrapper);
|
||||
start(); // Create new pipe for next connection
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
static void _windowsIpcIsolate(SendPort sendPort) {
|
||||
while (true) {
|
||||
final pipeHandle = CreateNamedPipe(
|
||||
r'\\.\pipe\discord-ipc'.toNativeUtf16(),
|
||||
PIPE_ACCESS_DUPLEX,
|
||||
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
|
||||
PIPE_UNLIMITED_INSTANCES,
|
||||
4096,
|
||||
4096,
|
||||
0,
|
||||
nullptr,
|
||||
);
|
||||
if (pipeHandle == INVALID_HANDLE_VALUE) {
|
||||
developer.log(
|
||||
'Failed to create named pipe: ${GetLastError()}',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
break;
|
||||
}
|
||||
final connected = ConnectNamedPipe(pipeHandle, nullptr);
|
||||
if (connected != 0 || GetLastError() == ERROR_PIPE_CONNECTED) {
|
||||
sendPort.send(pipeHandle);
|
||||
}
|
||||
// Avoid tight loop
|
||||
sleep(Duration(milliseconds: 100));
|
||||
}
|
||||
}
|
||||
|
||||
// Handle Windows IPC data
|
||||
void _handleWindowsIpcData(WindowsIpcSocketWrapper socket) async {
|
||||
final startTime = DateTime.now();
|
||||
final buffer = malloc.allocate<BYTE>(4096);
|
||||
final bytesRead = malloc.allocate<DWORD>(4);
|
||||
try {
|
||||
while (socket.pipeHandle != null) {
|
||||
final readStart = DateTime.now();
|
||||
final success = ReadFile(
|
||||
socket.pipeHandle!,
|
||||
buffer.cast(),
|
||||
4096,
|
||||
bytesRead,
|
||||
nullptr,
|
||||
);
|
||||
final readDuration =
|
||||
DateTime.now().difference(readStart).inMicroseconds;
|
||||
developer.log(
|
||||
'ReadFile took $readDuration microseconds',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
|
||||
if (success == FALSE && GetLastError() != ERROR_MORE_DATA) {
|
||||
developer.log(
|
||||
'IPC read error: ${GetLastError()}',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
socket.close();
|
||||
break;
|
||||
}
|
||||
|
||||
final data = buffer.asTypedList(0);
|
||||
socket.addData(data);
|
||||
final packets = socket.readPackets();
|
||||
for (final packet in packets) {
|
||||
handlePacket?.call(socket, packet, {});
|
||||
}
|
||||
}
|
||||
} catch (e) {
|
||||
developer.log('IPC data error: $e', name: kRpcIpcLogPrefix);
|
||||
socket.closeWithCode(IpcCloseCodes.closeUnsupported, e.toString());
|
||||
} finally {
|
||||
malloc.free(buffer);
|
||||
malloc.free(bytesRead);
|
||||
final totalDuration = DateTime.now().difference(startTime).inMicroseconds;
|
||||
developer.log(
|
||||
'handleWindowsIpcData took $totalDuration microseconds',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// Handle IPC handshake
|
||||
void _onIpcHandshake(
|
||||
IpcSocketWrapper socket,
|
||||
Map<String, dynamic> params,
|
||||
Map<String, Function> handlers,
|
||||
) {
|
||||
developer.log('IPC handshake: $params', name: kRpcIpcLogPrefix);
|
||||
|
||||
final ver = int.tryParse(params['v']?.toString() ?? '1') ?? 1;
|
||||
final clientId = params['client_id']?.toString() ?? '';
|
||||
|
||||
if (ver != 1) {
|
||||
developer.log(
|
||||
'IPC unsupported version requested: $ver',
|
||||
name: kRpcIpcLogPrefix,
|
||||
);
|
||||
socket.closeWithCode(IpcErrorCodes.invalidVersion);
|
||||
return;
|
||||
}
|
||||
|
||||
if (clientId.isEmpty) {
|
||||
developer.log('IPC client ID required', name: kRpcIpcLogPrefix);
|
||||
socket.closeWithCode(IpcErrorCodes.invalidClientId);
|
||||
return;
|
||||
}
|
||||
|
||||
socket.clientId = clientId;
|
||||
|
||||
handlers['connection']?.call(socket);
|
||||
}
|
||||
}
|
||||
|
||||
class WindowsIpcSocketWrapper extends IpcSocketWrapper {
|
||||
final int? pipeHandle;
|
||||
|
||||
WindowsIpcSocketWrapper(this.pipeHandle);
|
||||
|
||||
@override
|
||||
void send(Map<String, dynamic> msg) {
|
||||
developer.log('IPC sending: $msg', name: kRpcIpcLogPrefix);
|
||||
final packet = IpcServer.encodeIpcPacket(IpcTypes.frame, msg);
|
||||
final buffer = malloc.allocate<BYTE>(packet.length);
|
||||
buffer.asTypedList(packet.length).setAll(0, packet);
|
||||
final bytesWritten = malloc.allocate<DWORD>(4); // DWORD is 4 bytes
|
||||
try {
|
||||
WriteFile(
|
||||
pipeHandle!,
|
||||
buffer.cast(),
|
||||
packet.length,
|
||||
bytesWritten,
|
||||
nullptr,
|
||||
);
|
||||
} finally {
|
||||
malloc.free(buffer);
|
||||
malloc.free(bytesWritten);
|
||||
}
|
||||
}
|
||||
|
||||
@override
|
||||
void sendPong(dynamic data) {
|
||||
final packet = IpcServer.encodeIpcPacket(IpcTypes.pong, data ?? {});
|
||||
final buffer = malloc.allocate<BYTE>(packet.length);
|
||||
buffer.asTypedList(packet.length).setAll(0, packet);
|
||||
final bytesWritten = malloc.allocate<DWORD>(4); // DWORD is 4 bytes
|
||||
try {
|
||||
WriteFile(
|
||||
pipeHandle!,
|
||||
buffer.cast(),
|
||||
packet.length,
|
||||
bytesWritten,
|
||||
nullptr,
|
||||
);
|
||||
} finally {
|
||||
malloc.free(buffer);
|
||||
malloc.free(bytesWritten);
|
||||
}
|
||||
}
|
||||
|
||||
@override
|
||||
void close() {
|
||||
if (pipeHandle != null) {
|
||||
CloseHandle(pipeHandle!);
|
||||
}
|
||||
}
|
||||
|
||||
@override
|
||||
void closeWithCode(int code, [String message = '']) {
|
||||
final closeData = {'code': code, 'message': message};
|
||||
final packet = IpcServer.encodeIpcPacket(IpcTypes.close, closeData);
|
||||
final buffer = malloc.allocate<BYTE>(packet.length);
|
||||
buffer.asTypedList(packet.length).setAll(0, packet);
|
||||
final bytesWritten = malloc.allocate<DWORD>(4); // DWORD is 4 bytes
|
||||
try {
|
||||
WriteFile(
|
||||
pipeHandle!,
|
||||
buffer.cast(),
|
||||
packet.length,
|
||||
bytesWritten,
|
||||
nullptr,
|
||||
);
|
||||
} finally {
|
||||
malloc.free(buffer);
|
||||
malloc.free(bytesWritten);
|
||||
}
|
||||
CloseHandle(pipeHandle!);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user