mirror of
https://github.com/cypherstack/stack_wallet.git
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WIP SOCKSSocket
This commit is contained in:
sneurlax
parent
29341fc0b0
commit
1eeed74cf6
2 changed files with 100 additions and 70 deletions
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@ -14,6 +14,7 @@ import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:mutex/mutex.dart';
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import 'package:stackwallet/networking/socks5.dart';
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import 'package:stackwallet/networking/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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@ -35,7 +36,8 @@ class JsonRPC {
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final _requestMutex = Mutex();
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final _JsonRPCRequestQueue _requestQueue = _JsonRPCRequestQueue();
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Socket? _socket; // TODO make a SocksSocket extension/wrapper or similar
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Socket? _socket;
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SOCKSSocket? _socksSocket;
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StreamSubscription<Uint8List>? _subscription;
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void _dataHandler(List<int> data) {
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@ -79,7 +81,12 @@ class JsonRPC {
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_requestQueue.nextIncompleteReq.then((req) {
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if (req != null) {
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// \r\n required by electrumx server
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if (_socket != null) {
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_socket!.write('${req.jsonRequest}\r\n');
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}
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if (_socksSocket != null) {
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_socksSocket!.write('${req.jsonRequest}\r\n');
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}
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// TODO different timeout length?
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req.initiateTimeout(
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@ -96,6 +103,7 @@ class JsonRPC {
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Duration requestTimeout,
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) async {
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await _requestMutex.protect(() async {
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if (!Prefs.instance.useTor) {
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if (_socket == null) {
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Logging.instance.log(
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"JsonRPC request: opening socket $host:$port",
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@ -103,6 +111,15 @@ class JsonRPC {
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);
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await connect();
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}
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} else {
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if (_socksSocket == null) {
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Logging.instance.log(
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"JsonRPC request: opening SOCKS socket $host:$port",
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level: LogLevel.Info,
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);
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await connect();
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}
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}
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});
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final req = _JsonRPCRequest(
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@ -141,6 +158,9 @@ class JsonRPC {
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_subscription = null;
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_socket?.destroy();
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_socket = null;
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unawaited(_socksSocket?.close(keepOpen: false));
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// TODO check that it's ok to not await this
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_socksSocket = null;
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// clean up remaining queue
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await _requestQueue.completeRemainingWithError(
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@ -150,68 +170,7 @@ class JsonRPC {
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}
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Future<void> connect() async {
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if (_socket != null) {
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throw Exception(
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"JsonRPC attempted to connect to an already existing socket!",
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);
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}
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if (Prefs.instance.useTor) {
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if (proxyInfo == null) {
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// TODO await tor / make sure it's running
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proxyInfo = (
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host: InternetAddress.loopbackIPv4.address,
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port: TorService.sharedInstance.port
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);
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Logging.instance.log(
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"ElectrumX.connect(): no tor proxy info, read $proxyInfo",
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level: LogLevel.Warning);
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}
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// TODO connect to proxy socket...
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// https://github.com/LacticWhale/socks_dart/blob/master/lib/src/client/socks_client.dart#L50C46-L50C56
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// TODO implement ssl over tor
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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: (_) => true,
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// ); // TODO do not automatically trust bad certificates
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// final _client = SocksSocket.protected(_socket, type);
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// } else {
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_socket = await Socket.connect(
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proxyInfo!.host,
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proxyInfo!.port,
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timeout: connectionTimeout,
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);
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// final _client = SocksSocket.protected(
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// _socket!, SocksConnectionType.connect
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// );
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// final InternetAddress _host =
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// await InternetAddress.lookup(host).then((value) => value.first);
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// var _socket = await SocksSocket.initialize(
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// [
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// ProxySettings(
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// InternetAddress.loopbackIPv4,
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// proxyInfo!.port,
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// )
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// ],
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// _host,
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// port,
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// SocksConnectionType.connect,
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// );
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if (_socket == null) {
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Logging.instance.log(
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"JsonRPC.connect(): failed to connect to $host over tor proxy at $proxyInfo",
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level: LogLevel.Error);
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throw Exception("JsonRPC.connect(): failed to connect to tor proxy");
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} else {
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Logging.instance.log(
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"JsonRPC.connect(): connected to $host over tor proxy at $proxyInfo",
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level: LogLevel.Info);
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}
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} else {
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if (!Prefs.instance.useTor) {
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if (useSSL) {
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_socket = await SecureSocket.connect(
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host,
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@ -226,6 +185,61 @@ class JsonRPC {
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timeout: connectionTimeout,
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);
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}
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} else {
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if (proxyInfo == null) {
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// TODO await tor / make sure it's running
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proxyInfo = (
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host: InternetAddress.loopbackIPv4.address,
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port: TorService.sharedInstance.port
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);
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Logging.instance.log(
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"ElectrumX.connect(): no tor proxy info, read $proxyInfo",
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level: LogLevel.Warning);
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}
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// TODO connect to proxy socket...
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// TODO implement ssl over tor
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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: (_) => true,
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// ); // TODO do not automatically trust bad certificates
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// final _client = SocksSocket.protected(_socket, type);
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// } else {
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final sock = await RawSocket.connect(
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InternetAddress.loopbackIPv4, proxyInfo!.port);
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_socksSocket = SOCKSSocket(sock);
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if (_socksSocket == null) {
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Logging.instance.log(
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"JsonRPC.connect(): failed to create SOCKS socket at $proxyInfo",
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level: LogLevel.Error);
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throw Exception(
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"JsonRPC.connect(): failed to create SOCKS socket at $proxyInfo");
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} else {
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Logging.instance.log(
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"JsonRPC.connect(): created SOCKS socket at $proxyInfo",
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level: LogLevel.Info);
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}
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try {
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if (!isIpAddress(host)) {
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await _socksSocket!.connect("$host:$port");
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} else {
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await _socksSocket!.connectIp(InternetAddress(host), port);
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}
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Logging.instance.log(
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"JsonRPC.connect(): connected to $host:$port over SOCKS socket at $proxyInfo",
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level: LogLevel.Info);
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} catch (e) {
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Logging.instance.log(
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"JsonRPC.connect(): failed to connect to $host over tor proxy at $proxyInfo, $e",
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level: LogLevel.Error);
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throw Exception(
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"JsonRPC.connect(): failed to connect to tor proxy, $e");
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}
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}
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_subscription = _socket!.listen(
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@ -356,3 +370,14 @@ class JsonRPCResponse {
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JsonRPCResponse({this.data, this.exception});
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}
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bool isIpAddress(String host) {
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try {
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// if the string can be parsed into an InternetAddress, it's an IP.
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InternetAddress(host);
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return true;
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} catch (e) {
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// if parsing fails, it's not an IP.
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return false;
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}
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}
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@ -377,4 +377,9 @@ class SOCKSSocket {
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throw "Must be in RequestReady state, current state $_state";
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}
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}
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void write(Object? object) {
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_sock.write(utf8.encode(object.toString()));
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// TODO make sure the is correct; see _writeRequest above, may need to construct a SOCKSRequest from the data coming in
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}
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}
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