mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-11-16 17:27:39 +00:00
862 lines
29 KiB
Dart
862 lines
29 KiB
Dart
// /*
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// * This file is part of Stack Wallet.
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// *
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// * Copyright (c) 2023 Cypher Stack
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// * All Rights Reserved.
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// * The code is distributed under GPLv3 license, see LICENSE file for details.
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// * Generated by Cypher Stack on 2023-05-26
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// *
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// */
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//
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// import 'dart:async';
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// import 'dart:convert';
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// import 'dart:io';
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//
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// import 'package:event_bus/event_bus.dart';
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// import 'package:mutex/mutex.dart';
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// import 'package:stackwallet/electrumx_rpc/electrumx_client.dart';
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// import 'package:stackwallet/exceptions/json_rpc/json_rpc_exception.dart';
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// import 'package:stackwallet/services/event_bus/events/global/tor_connection_status_changed_event.dart';
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// import 'package:stackwallet/services/event_bus/events/global/tor_status_changed_event.dart';
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// import 'package:stackwallet/services/event_bus/global_event_bus.dart';
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// import 'package:stackwallet/services/tor_service.dart';
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// import 'package:stackwallet/utilities/logger.dart';
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// import 'package:stackwallet/utilities/prefs.dart';
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// import 'package:tor_ffi_plugin/socks_socket.dart';
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//
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// class ElectrumXSubscription {
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// final StreamController<dynamic> _controller =
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// StreamController(); // TODO controller params
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//
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// Stream<dynamic> get responseStream => _controller.stream;
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//
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// void addToStream(dynamic data) => _controller.add(data);
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// }
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//
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// class SocketTask {
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// SocketTask({this.completer, this.subscription});
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//
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// final Completer<dynamic>? completer;
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// final ElectrumXSubscription? subscription;
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//
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// bool get isSubscription => subscription != null;
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// }
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//
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// class SubscribableElectrumXClient {
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// int _currentRequestID = 0;
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// bool _isConnected = false;
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// List<int> _responseData = [];
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// final Map<String, SocketTask> _tasks = {};
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// Timer? _aliveTimer;
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// Socket? _socket;
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// SOCKSSocket? _socksSocket;
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// late final bool _useSSL;
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// late final Duration _connectionTimeout;
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// late final Duration _keepAlive;
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//
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// bool get isConnected => _isConnected;
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// bool get useSSL => _useSSL;
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// // Used to reconnect.
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// String? _host;
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// int? _port;
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//
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// void Function(bool)? onConnectionStatusChanged;
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//
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// late Prefs _prefs;
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// late TorService _torService;
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// StreamSubscription<TorPreferenceChangedEvent>? _torPreferenceListener;
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// StreamSubscription<TorConnectionStatusChangedEvent>? _torStatusListener;
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// final Mutex _torConnectingLock = Mutex();
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// bool _requireMutex = false;
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//
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// List<ElectrumXNode>? failovers;
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// int currentFailoverIndex = -1;
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//
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// SubscribableElectrumXClient({
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// required bool useSSL,
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// required Prefs prefs,
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// required List<ElectrumXNode> failovers,
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// TorService? torService,
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// this.onConnectionStatusChanged,
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// Duration connectionTimeout = const Duration(seconds: 5),
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// Duration keepAlive = const Duration(seconds: 10),
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// EventBus? globalEventBusForTesting,
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// }) {
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// _useSSL = useSSL;
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// _prefs = prefs;
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// _torService = torService ?? TorService.sharedInstance;
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// _connectionTimeout = connectionTimeout;
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// _keepAlive = keepAlive;
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//
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// // If we're testing, use the global event bus for testing.
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// final bus = globalEventBusForTesting ?? GlobalEventBus.instance;
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//
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// // Listen to global event bus for Tor status changes.
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// _torStatusListener = bus.on<TorConnectionStatusChangedEvent>().listen(
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// (event) async {
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// try {
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// switch (event.newStatus) {
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// case TorConnectionStatus.connecting:
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// // If Tor is connecting, we need to wait.
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// await _torConnectingLock.acquire();
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// _requireMutex = true;
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// break;
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//
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// case TorConnectionStatus.connected:
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// case TorConnectionStatus.disconnected:
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// // If Tor is connected or disconnected, we can release the lock.
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// if (_torConnectingLock.isLocked) {
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// _torConnectingLock.release();
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// }
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// _requireMutex = false;
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// break;
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// }
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// } finally {
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// // Ensure the lock is released.
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// if (_torConnectingLock.isLocked) {
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// _torConnectingLock.release();
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// }
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// }
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// },
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// );
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//
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// // Listen to global event bus for Tor preference changes.
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// _torPreferenceListener = bus.on<TorPreferenceChangedEvent>().listen(
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// (event) async {
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// // Close open socket (if open).
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// final tempSocket = _socket;
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// _socket = null;
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// await tempSocket?.close();
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//
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// // Close open SOCKS socket (if open).
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// final tempSOCKSSocket = _socksSocket;
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// _socksSocket = null;
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// await tempSOCKSSocket?.close();
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//
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// // Clear subscriptions.
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// _tasks.clear();
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//
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// // Cancel alive timer
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// _aliveTimer?.cancel();
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// },
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// );
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// }
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//
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// factory SubscribableElectrumXClient.from({
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// required ElectrumXNode node,
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// required Prefs prefs,
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// required List<ElectrumXNode> failovers,
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// TorService? torService,
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// }) {
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// return SubscribableElectrumXClient(
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// useSSL: node.useSSL,
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// prefs: prefs,
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// failovers: failovers,
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// torService: torService ?? TorService.sharedInstance,
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// );
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// }
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//
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// // Example for returning a future which completes upon connection.
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// // static Future<SubscribableElectrumXClient> from({
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// // required ElectrumXNode node,
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// // TorService? torService,
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// // }) async {
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// // final client = SubscribableElectrumXClient(
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// // useSSL: node.useSSL,
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// // );
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// //
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// // await client.connect(host: node.address, port: node.port);
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// //
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// // return client;
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// // }
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//
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// /// Check if the RPC client is connected and connect if needed.
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// ///
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// /// If Tor is enabled but not running, it will attempt to start Tor.
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// Future<void> _checkSocket({bool connecting = false}) async {
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// if (_prefs.useTor) {
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// // If we're supposed to use Tor...
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// if (_torService.status != TorConnectionStatus.connected) {
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// // ... but Tor isn't running...
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// if (!_prefs.torKillSwitch) {
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// // ... and the killswitch isn't set, then we'll just return below.
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// Logging.instance.log(
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// "Tor preference set but Tor is not enabled, killswitch not set, connecting to ElectrumX through clearnet.",
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// level: LogLevel.Warning,
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// );
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// } else {
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// // ... but if the killswitch is set, then let's try to start Tor.
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// await _torService.start();
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// // TODO [prio=low]: Attempt to restart Tor if needed. Update Tor package for restart feature.
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//
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// // Double-check that Tor is running.
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// if (_torService.status != TorConnectionStatus.connected) {
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// // If Tor still isn't running, then we'll throw an exception.
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// throw Exception("SubscribableElectrumXClient._checkRpcClient: "
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// "Tor preference and killswitch set but Tor not enabled and could not start, not connecting to ElectrumX.");
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// }
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// }
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// }
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// }
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//
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// // Connect if needed.
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// if (!connecting) {
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// if ((!_prefs.useTor && _socket == null) ||
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// (_prefs.useTor && _socksSocket == null)) {
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// if (currentFailoverIndex == -1) {
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// // Check if we have cached node information
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// if (_host == null && _port == null) {
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// throw Exception("SubscribableElectrumXClient._checkRpcClient: "
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// "No host or port provided and no cached node information.");
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// }
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//
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// // Connect to the server.
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// await connect(host: _host!, port: _port!);
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// } else {
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// // Attempt to connect to the next failover server.
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// await connect(
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// host: failovers![currentFailoverIndex].address,
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// port: failovers![currentFailoverIndex].port,
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// );
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// }
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// }
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// }
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// }
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//
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// /// Connect to the server.
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// ///
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// /// If Tor is enabled, it will attempt to connect through Tor.
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// Future<void> connect({
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// required String host,
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// required int port,
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// }) async {
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// try {
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// // Cache node information.
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// _host = host;
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// _port = port;
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//
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// // If we're already connected, disconnect first.
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// try {
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// await _socket?.close();
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// } catch (_) {}
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//
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// // If we're connecting to Tor, wait.
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// if (_requireMutex) {
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// await _torConnectingLock
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// .protect(() async => await _checkSocket(connecting: true));
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// } else {
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// await _checkSocket(connecting: true);
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// }
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//
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// if (!Prefs.instance.useTor) {
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// // If we're not supposed to use Tor, then connect directly.
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// await connectClearnet(host, port);
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// } else {
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// // If we're supposed to use Tor...
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// if (_torService.status != TorConnectionStatus.connected) {
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// // ... but Tor isn't running...
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// if (!_prefs.torKillSwitch) {
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// // ... and the killswitch isn't set, then we'll connect clearnet.
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// Logging.instance.log(
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// "Tor preference set but Tor not enabled, no killswitch set, connecting to ElectrumX through clearnet",
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// level: LogLevel.Warning,
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// );
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// await connectClearnet(host, port);
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// } else {
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// // ... but if the killswitch is set, then let's try to start Tor.
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// await _torService.start();
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// // TODO [prio=low]: Attempt to restart Tor if needed. Update Tor package for restart feature.
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//
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// // Doublecheck that Tor is running.
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// if (_torService.status != TorConnectionStatus.connected) {
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// // If Tor still isn't running, then we'll throw an exception.
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// throw Exception(
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// "Tor preference and killswitch set but Tor not enabled, not connecting to ElectrumX");
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// }
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//
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// // Connect via Tor.
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// await connectTor(host, port);
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// }
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// } else {
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// // Connect via Tor.
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// await connectTor(host, port);
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// }
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// }
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//
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// _updateConnectionStatus(true);
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//
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// if (_prefs.useTor) {
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// if (_socksSocket == null) {
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// final String msg = "SubscribableElectrumXClient.connect(): "
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// "cannot listen to $host:$port via SOCKSSocket because it is not connected.";
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// Logging.instance.log(msg, level: LogLevel.Fatal);
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// throw Exception(msg);
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// }
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//
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// _socksSocket!.listen(
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// _dataHandler,
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// onError: _errorHandler,
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// onDone: _doneHandler,
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// cancelOnError: true,
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// );
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// } else {
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// if (_socket == null) {
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// final String msg = "SubscribableElectrumXClient.connect(): "
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// "cannot listen to $host:$port via socket because it is not connected.";
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// Logging.instance.log(msg, level: LogLevel.Fatal);
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// throw Exception(msg);
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// }
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//
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// _socket!.listen(
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// _dataHandler,
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// onError: _errorHandler,
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// onDone: _doneHandler,
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// cancelOnError: true,
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// );
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// }
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//
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// _aliveTimer?.cancel();
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// _aliveTimer = Timer.periodic(
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// _keepAlive,
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// (_) async => _updateConnectionStatus(await ping()),
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// );
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// } catch (e, s) {
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// final msg = "SubscribableElectrumXClient.connect: "
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// "failed to connect to $host:$port."
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// "\nError: $e\nStack trace: $s";
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// Logging.instance.log(msg, level: LogLevel.Fatal);
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//
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// // Ensure cleanup is performed on failure to avoid resource leaks.
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// await disconnect(); // Use the disconnect method to clean up.
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// rethrow; // Rethrow the exception to handle it further up the call stack.
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// }
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// }
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//
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// /// Connect to the server directly.
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// Future<void> connectClearnet(String host, int port) async {
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// try {
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// Logging.instance.log(
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// "SubscribableElectrumXClient.connectClearnet(): "
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// "creating a socket to $host:$port (SSL $useSSL)...",
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// level: LogLevel.Info);
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//
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// if (_useSSL) {
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// _socket = await SecureSocket.connect(
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// host,
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// port,
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// timeout: _connectionTimeout,
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// onBadCertificate: (_) =>
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// true, // TODO do not automatically trust bad certificates.
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// );
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// } else {
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// _socket = await Socket.connect(
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// host,
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// port,
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// timeout: _connectionTimeout,
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// );
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// }
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//
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// Logging.instance.log(
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// "SubscribableElectrumXClient.connectClearnet(): "
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// "created socket to $host:$port...",
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// level: LogLevel.Info);
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// } catch (e, s) {
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// final String msg = "SubscribableElectrumXClient.connectClearnet: "
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// "failed to connect to $host (SSL: $useSSL)."
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// "\nError: $e\nStack trace: $s";
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// Logging.instance.log(msg, level: LogLevel.Fatal);
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// throw JsonRpcException(msg);
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// }
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//
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// return;
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// }
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//
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// /// Connect to the server using the Tor service.
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// Future<void> connectTor(String host, int port) async {
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// // Get the proxy info from the TorService.
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// final proxyInfo = _torService.getProxyInfo();
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//
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// try {
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// Logging.instance.log(
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// "SubscribableElectrumXClient.connectTor(): "
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// "creating a SOCKS socket at $proxyInfo (SSL $useSSL)...",
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// level: LogLevel.Info);
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//
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// // Create a socks socket using the Tor service's proxy info.
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// _socksSocket = await SOCKSSocket.create(
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// proxyHost: proxyInfo.host.address,
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// proxyPort: proxyInfo.port,
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// sslEnabled: useSSL,
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// );
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//
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// Logging.instance.log(
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// "SubscribableElectrumXClient.connectTor(): "
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// "created SOCKS socket at $proxyInfo...",
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// level: LogLevel.Info);
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// } catch (e, s) {
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// final String msg = "SubscribableElectrumXClient.connectTor(): "
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// "failed to create a SOCKS socket at $proxyInfo (SSL $useSSL)..."
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// "\nError: $e\nStack trace: $s";
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// Logging.instance.log(msg, level: LogLevel.Fatal);
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// throw JsonRpcException(msg);
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// }
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//
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// try {
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// Logging.instance.log(
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// "SubscribableElectrumXClient.connectTor(): "
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// "connecting to SOCKS socket at $proxyInfo (SSL $useSSL)...",
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// level: LogLevel.Info);
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//
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// await _socksSocket?.connect();
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//
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// Logging.instance.log(
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// "SubscribableElectrumXClient.connectTor(): "
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// "connected to SOCKS socket at $proxyInfo...",
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// level: LogLevel.Info);
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// } catch (e, s) {
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// final String msg = "SubscribableElectrumXClient.connectTor(): "
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// "failed to connect to SOCKS socket at $proxyInfo.."
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// "\nError: $e\nStack trace: $s";
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// Logging.instance.log(msg, level: LogLevel.Fatal);
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// throw JsonRpcException(msg);
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// }
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//
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// try {
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// Logging.instance.log(
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// "SubscribableElectrumXClient.connectTor(): "
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// "connecting to $host:$port over SOCKS socket at $proxyInfo...",
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// level: LogLevel.Info);
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//
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// await _socksSocket?.connectTo(host, port);
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//
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// Logging.instance.log(
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// "SubscribableElectrumXClient.connectTor(): "
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// "connected to $host:$port over SOCKS socket at $proxyInfo",
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// level: LogLevel.Info);
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// } catch (e, s) {
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// final String msg = "SubscribableElectrumXClient.connectTor(): "
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// "failed to connect $host over tor proxy at $proxyInfo."
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// "\nError: $e\nStack trace: $s";
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// Logging.instance.log(msg, level: LogLevel.Fatal);
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// throw JsonRpcException(msg);
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// }
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//
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// return;
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// }
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//
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// /// Disconnect from the server.
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// Future<void> disconnect() async {
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// _aliveTimer?.cancel();
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// _aliveTimer = null;
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//
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// try {
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// await _socket?.close();
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// } catch (e, s) {
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// Logging.instance.log(
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// "SubscribableElectrumXClient.disconnect: failed to close socket."
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// "\nError: $e\nStack trace: $s",
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// level: LogLevel.Warning);
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// }
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// _socket = null;
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//
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// try {
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// await _socksSocket?.close();
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// } catch (e, s) {
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// Logging.instance.log(
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// "SubscribableElectrumXClient.disconnect: failed to close SOCKS socket."
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// "\nError: $e\nStack trace: $s",
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// level: LogLevel.Warning);
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// }
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// _socksSocket = null;
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//
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// onConnectionStatusChanged = null;
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// }
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//
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// /// Format JSON request string.
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// String _buildJsonRequestString({
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// required String method,
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// required String id,
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// required List<dynamic> params,
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// }) {
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// final paramString = jsonEncode(params);
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// return '{"jsonrpc": "2.0", "id": "$id","method": "$method","params": $paramString}\r\n';
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// }
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//
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// /// Update the connection status and call the onConnectionStatusChanged callback if it exists.
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// void _updateConnectionStatus(bool connectionStatus) {
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// if (_isConnected != connectionStatus && onConnectionStatusChanged != null) {
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// onConnectionStatusChanged!(connectionStatus);
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// }
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// _isConnected = connectionStatus;
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// }
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//
|
|
// /// Called when the socket has data.
|
|
// void _dataHandler(List<int> data) {
|
|
// _responseData.addAll(data);
|
|
//
|
|
// // 0x0A is newline
|
|
// // https://electrumx-spesmilo.readthedocs.io/en/latest/protocol-basics.html
|
|
// if (data.last == 0x0A) {
|
|
// try {
|
|
// final response = jsonDecode(String.fromCharCodes(_responseData))
|
|
// as Map<String, dynamic>;
|
|
// _responseHandler(response);
|
|
// } catch (e, s) {
|
|
// Logging.instance
|
|
// .log("JsonRPC jsonDecode: $e\n$s", level: LogLevel.Error);
|
|
// rethrow;
|
|
// } finally {
|
|
// _responseData = [];
|
|
// }
|
|
// }
|
|
// }
|
|
//
|
|
// /// Called when the socket has a response.
|
|
// void _responseHandler(Map<String, dynamic> response) {
|
|
// // subscriptions will have a method in the response
|
|
// if (response['method'] is String) {
|
|
// _subscriptionHandler(response: response);
|
|
// return;
|
|
// }
|
|
//
|
|
// final id = response['id'] as String;
|
|
// final result = response['result'];
|
|
//
|
|
// _complete(id, result);
|
|
// }
|
|
//
|
|
// /// Called when the subscription has a response.
|
|
// void _subscriptionHandler({
|
|
// required Map<String, dynamic> response,
|
|
// }) {
|
|
// final method = response['method'];
|
|
// switch (method) {
|
|
// case "blockchain.scripthash.subscribe":
|
|
// final params = response["params"] as List<dynamic>;
|
|
// final scripthash = params.first as String;
|
|
// final taskId = "blockchain.scripthash.subscribe:$scripthash";
|
|
//
|
|
// _tasks[taskId]?.subscription?.addToStream(params.last);
|
|
// break;
|
|
// case "blockchain.headers.subscribe":
|
|
// final params = response["params"];
|
|
// const taskId = "blockchain.headers.subscribe";
|
|
//
|
|
// _tasks[taskId]?.subscription?.addToStream(params.first);
|
|
// break;
|
|
// default:
|
|
// break;
|
|
// }
|
|
// }
|
|
//
|
|
// /// Called when the socket has an error.
|
|
// void _errorHandler(Object error, StackTrace trace) {
|
|
// _updateConnectionStatus(false);
|
|
// Logging.instance.log(
|
|
// "SubscribableElectrumXClient called _errorHandler with: $error\n$trace",
|
|
// level: LogLevel.Info);
|
|
// }
|
|
//
|
|
// /// Called when the socket is closed.
|
|
// void _doneHandler() {
|
|
// _updateConnectionStatus(false);
|
|
// Logging.instance.log("SubscribableElectrumXClient called _doneHandler",
|
|
// level: LogLevel.Info);
|
|
// }
|
|
//
|
|
// /// Complete a task with the given id and data.
|
|
// void _complete(String id, dynamic data) {
|
|
// if (_tasks[id] == null) {
|
|
// return;
|
|
// }
|
|
//
|
|
// if (!(_tasks[id]?.completer?.isCompleted ?? false)) {
|
|
// _tasks[id]?.completer?.complete(data);
|
|
// }
|
|
//
|
|
// if (!(_tasks[id]?.isSubscription ?? false)) {
|
|
// _tasks.remove(id);
|
|
// } else {
|
|
// _tasks[id]?.subscription?.addToStream(data);
|
|
// }
|
|
// }
|
|
//
|
|
// /// Add a task to the task list.
|
|
// void _addTask({
|
|
// required String id,
|
|
// required Completer<dynamic> completer,
|
|
// }) {
|
|
// _tasks[id] = SocketTask(completer: completer, subscription: null);
|
|
// }
|
|
//
|
|
// /// Add a subscription task to the task list.
|
|
// void _addSubscriptionTask({
|
|
// required String id,
|
|
// required ElectrumXSubscription subscription,
|
|
// }) {
|
|
// _tasks[id] = SocketTask(completer: null, subscription: subscription);
|
|
// }
|
|
//
|
|
// /// Write call to socket.
|
|
// Future<dynamic> _call({
|
|
// required String method,
|
|
// List<dynamic> params = const [],
|
|
// }) async {
|
|
// // If we're connecting to Tor, wait.
|
|
// if (_requireMutex) {
|
|
// await _torConnectingLock.protect(() async => await _checkSocket());
|
|
// } else {
|
|
// await _checkSocket();
|
|
// }
|
|
//
|
|
// // Check socket is connected.
|
|
// if (_prefs.useTor) {
|
|
// if (_socksSocket == null) {
|
|
// final msg = "SubscribableElectrumXClient._call: "
|
|
// "SOCKSSocket is not connected. Method $method, params $params.";
|
|
// Logging.instance.log(msg, level: LogLevel.Fatal);
|
|
// throw Exception(msg);
|
|
// }
|
|
// } else {
|
|
// if (_socket == null) {
|
|
// final msg = "SubscribableElectrumXClient._call: "
|
|
// "Socket is not connected. Method $method, params $params.";
|
|
// Logging.instance.log(msg, level: LogLevel.Fatal);
|
|
// throw Exception(msg);
|
|
// }
|
|
// }
|
|
//
|
|
// final completer = Completer<dynamic>();
|
|
// _currentRequestID++;
|
|
// final id = _currentRequestID.toString();
|
|
//
|
|
// // Write to the socket.
|
|
// try {
|
|
// _addTask(id: id, completer: completer);
|
|
//
|
|
// if (_prefs.useTor) {
|
|
// _socksSocket?.write(
|
|
// _buildJsonRequestString(
|
|
// method: method,
|
|
// id: id,
|
|
// params: params,
|
|
// ),
|
|
// );
|
|
// } else {
|
|
// _socket?.write(
|
|
// _buildJsonRequestString(
|
|
// method: method,
|
|
// id: id,
|
|
// params: params,
|
|
// ),
|
|
// );
|
|
// }
|
|
//
|
|
// return completer.future;
|
|
// } catch (e, s) {
|
|
// final String msg = "SubscribableElectrumXClient._call: "
|
|
// "failed to request $method with id $id."
|
|
// "\nError: $e\nStack trace: $s";
|
|
// Logging.instance.log(msg, level: LogLevel.Fatal);
|
|
// throw JsonRpcException(msg);
|
|
// }
|
|
// }
|
|
//
|
|
// /// Write call to socket with timeout.
|
|
// Future<dynamic> _callWithTimeout({
|
|
// required String method,
|
|
// List<dynamic> params = const [],
|
|
// Duration timeout = const Duration(seconds: 2),
|
|
// }) async {
|
|
// // If we're connecting to Tor, wait.
|
|
// if (_requireMutex) {
|
|
// await _torConnectingLock.protect(() async => await _checkSocket());
|
|
// } else {
|
|
// await _checkSocket();
|
|
// }
|
|
//
|
|
// // Check socket is connected.
|
|
// if (_prefs.useTor) {
|
|
// if (_socksSocket == null) {
|
|
// try {
|
|
// if (_host == null || _port == null) {
|
|
// throw Exception("No host or port provided");
|
|
// }
|
|
//
|
|
// // Attempt to conect.
|
|
// await connect(
|
|
// host: _host!,
|
|
// port: _port!,
|
|
// );
|
|
// } catch (e, s) {
|
|
// final msg = "SubscribableElectrumXClient._callWithTimeout: "
|
|
// "SOCKSSocket not connected and cannot connect. "
|
|
// "Method $method, params $params."
|
|
// "\nError: $e\nStack trace: $s";
|
|
// Logging.instance.log(msg, level: LogLevel.Fatal);
|
|
// throw Exception(msg);
|
|
// }
|
|
// }
|
|
// } else {
|
|
// if (_socket == null) {
|
|
// try {
|
|
// if (_host == null || _port == null) {
|
|
// throw Exception("No host or port provided");
|
|
// }
|
|
//
|
|
// // Attempt to conect.
|
|
// await connect(
|
|
// host: _host!,
|
|
// port: _port!,
|
|
// );
|
|
// } catch (e, s) {
|
|
// final msg = "SubscribableElectrumXClient._callWithTimeout: "
|
|
// "Socket not connected and cannot connect. "
|
|
// "Method $method, params $params.";
|
|
// Logging.instance.log(msg, level: LogLevel.Fatal);
|
|
// throw Exception(msg);
|
|
// }
|
|
// }
|
|
// }
|
|
//
|
|
// final completer = Completer<dynamic>();
|
|
// _currentRequestID++;
|
|
// final id = _currentRequestID.toString();
|
|
//
|
|
// // Write to the socket.
|
|
// try {
|
|
// _addTask(id: id, completer: completer);
|
|
//
|
|
// if (_prefs.useTor) {
|
|
// _socksSocket?.write(
|
|
// _buildJsonRequestString(
|
|
// method: method,
|
|
// id: id,
|
|
// params: params,
|
|
// ),
|
|
// );
|
|
// } else {
|
|
// _socket?.write(
|
|
// _buildJsonRequestString(
|
|
// method: method,
|
|
// id: id,
|
|
// params: params,
|
|
// ),
|
|
// );
|
|
// }
|
|
//
|
|
// Timer(timeout, () {
|
|
// if (!completer.isCompleted) {
|
|
// completer.completeError(
|
|
// Exception("Request \"id: $id, method: $method\" timed out!"),
|
|
// );
|
|
// }
|
|
// });
|
|
//
|
|
// return completer.future;
|
|
// } catch (e, s) {
|
|
// final String msg = "SubscribableElectrumXClient._callWithTimeout: "
|
|
// "failed to request $method with id $id (timeout $timeout)."
|
|
// "\nError: $e\nStack trace: $s";
|
|
// Logging.instance.log(msg, level: LogLevel.Fatal);
|
|
// throw JsonRpcException(msg);
|
|
// }
|
|
// }
|
|
//
|
|
// ElectrumXSubscription _subscribe({
|
|
// required String id,
|
|
// required String method,
|
|
// List<dynamic> params = const [],
|
|
// }) {
|
|
// try {
|
|
// final subscription = ElectrumXSubscription();
|
|
// _addSubscriptionTask(id: id, subscription: subscription);
|
|
// _currentRequestID++;
|
|
//
|
|
// // Check socket is connected.
|
|
// if (_prefs.useTor) {
|
|
// if (_socksSocket == null) {
|
|
// final msg = "SubscribableElectrumXClient._call: "
|
|
// "SOCKSSocket is not connected. Method $method, params $params.";
|
|
// Logging.instance.log(msg, level: LogLevel.Fatal);
|
|
// throw Exception(msg);
|
|
// }
|
|
// } else {
|
|
// if (_socket == null) {
|
|
// final msg = "SubscribableElectrumXClient._call: "
|
|
// "Socket is not connected. Method $method, params $params.";
|
|
// Logging.instance.log(msg, level: LogLevel.Fatal);
|
|
// throw Exception(msg);
|
|
// }
|
|
// }
|
|
//
|
|
// // Write to the socket.
|
|
// if (_prefs.useTor) {
|
|
// _socksSocket?.write(
|
|
// _buildJsonRequestString(
|
|
// method: method,
|
|
// id: id,
|
|
// params: params,
|
|
// ),
|
|
// );
|
|
// } else {
|
|
// _socket?.write(
|
|
// _buildJsonRequestString(
|
|
// method: method,
|
|
// id: id,
|
|
// params: params,
|
|
// ),
|
|
// );
|
|
// }
|
|
//
|
|
// return subscription;
|
|
// } catch (e, s) {
|
|
// final String msg = "SubscribableElectrumXClient._subscribe: "
|
|
// "failed to subscribe to $method with id $id."
|
|
// "\nError: $e\nStack trace: $s";
|
|
// Logging.instance.log(msg, level: LogLevel.Fatal);
|
|
// throw JsonRpcException(msg);
|
|
// }
|
|
// }
|
|
//
|
|
// /// Ping the server to ensure it is responding
|
|
// ///
|
|
// /// Returns true if ping succeeded
|
|
// Future<bool> ping() async {
|
|
// // If we're connecting to Tor, wait.
|
|
// if (_requireMutex) {
|
|
// await _torConnectingLock.protect(() async => await _checkSocket());
|
|
// } else {
|
|
// await _checkSocket();
|
|
// }
|
|
//
|
|
// // Write to the socket.
|
|
// try {
|
|
// final response = (await _callWithTimeout(method: "server.ping")) as Map;
|
|
// return response.keys.contains("result") && response["result"] == null;
|
|
// } catch (_) {
|
|
// return false;
|
|
// }
|
|
// }
|
|
//
|
|
// /// Subscribe to a scripthash to receive notifications on status changes
|
|
// ElectrumXSubscription subscribeToScripthash({required String scripthash}) {
|
|
// return _subscribe(
|
|
// id: 'blockchain.scripthash.subscribe:$scripthash',
|
|
// method: 'blockchain.scripthash.subscribe',
|
|
// params: [scripthash],
|
|
// );
|
|
// }
|
|
//
|
|
// /// Subscribe to block headers to receive notifications on new blocks found
|
|
// ///
|
|
// /// Returns the existing subscription if found
|
|
// ElectrumXSubscription subscribeToBlockHeaders() {
|
|
// return _tasks["blockchain.headers.subscribe"]?.subscription ??
|
|
// _subscribe(
|
|
// id: "blockchain.headers.subscribe",
|
|
// method: "blockchain.headers.subscribe",
|
|
// params: [],
|
|
// );
|
|
// }
|
|
// }
|