|
public static LogUsefulException ( |
||
| e | ||
| return | void | |
private void Reload()
{
if (_port_map_listener != null)
{
foreach (var l in _port_map_listener)
{
l.Stop();
}
_port_map_listener = null;
}
// some logic in configuration updated the config when saving, we need to read it again
_config = MergeGetConfiguration(_config);
_config.FlushPortMapCache();
Logging.save_to_file = _config.logEnable;
Logging.OpenLogFile();
ReloadIPRange();
var hostMap = new HostMap();
hostMap.LoadHostFile();
HostMap.Instance().Clear(hostMap);
if (privoxyRunner == null)
{
privoxyRunner = new HttpProxyRunner();
}
if (_pacServer == null)
{
_pacServer = new PACServer();
_pacServer.PACFileChanged += pacServer_PACFileChanged;
_pacServer.UserRuleFileChanged += pacServer_UserRuleFileChanged;
}
_pacServer.UpdateConfiguration(_config);
if (gfwListUpdater == null)
{
gfwListUpdater = new GFWListUpdater();
gfwListUpdater.UpdateCompleted += pacServer_PACUpdateCompleted;
gfwListUpdater.Error += pacServer_PACUpdateError;
}
if (chnDomainsAndIPUpdater == null)
{
chnDomainsAndIPUpdater = new ChnDomainsAndIPUpdater();
chnDomainsAndIPUpdater.UpdateCompleted += pacServer_PACUpdateCompleted;
chnDomainsAndIPUpdater.Error += pacServer_PACUpdateError;
}
_listener?.Stop();
// don't put PrivoxyRunner.Start() before pacServer.Stop()
// or bind will fail when switching bind address from 0.0.0.0 to 127.0.0.1
// though UseShellExecute is set to true now
// http://stackoverflow.com/questions/10235093/socket-doesnt-close-after-application-exits-if-a-launched-process-is-open
try
{
privoxyRunner.Stop();
privoxyRunner.Start(_config);
var local = new Local(_config, _transfer, _rangeSet);
var services = new List <Listener.Service>
{
local,
_pacServer,
new APIServer(this, _config),
new HttpPortForwarder(privoxyRunner.RunningPort, _config)
};
_listener = new Listener(services);
_listener.Start(_config, 0);
}
catch (Exception e)
{
// translate Microsoft language into human language
// i.e. An attempt was made to access a socket in a way forbidden by its access permissions => Port already in use
if (e is SocketException se)
{
if (se.SocketErrorCode == SocketError.AddressAlreadyInUse)
{
e = new Exception(string.Format(I18N.GetString("Port {0} already in use"), _config.localPort),
se);
}
else if (se.SocketErrorCode == SocketError.AccessDenied)
{
e = new Exception(string.Format(I18N.GetString("Port {0} is reserved by system"), _config.localPort), se);
}
}
Logging.LogUsefulException(e);
ReportError(e);
}
_port_map_listener = new List <Listener>();
foreach (var pair in _config.GetPortMapCache())
{
try
{
var local = new Local(_config, _transfer, _rangeSet);
var services = new List <Listener.Service> {
local
};
var listener = new Listener(services);
listener.Start(_config, pair.Key);
_port_map_listener.Add(listener);
}
catch (Exception e)
{
// translate Microsoft language into human language
// i.e. An attempt was made to access a socket in a way forbidden by its access permissions => Port already in use
if (e is SocketException se)
{
if (se.SocketErrorCode == SocketError.AddressAlreadyInUse)
{
e = new Exception(string.Format(I18N.GetString("Port {0} already in use"), pair.Key), e);
}
else if (se.SocketErrorCode == SocketError.AccessDenied)
{
e = new Exception(string.Format(I18N.GetString("Port {0} is reserved by system"), pair.Key), se);
}
}
Logging.LogUsefulException(e);
ReportError(e);
}
}
Application.Current.Dispatcher?.Invoke(() => { ConfigChanged?.Invoke(this, new EventArgs()); });
UpdateSystemProxy();
Utils.ReleaseMemory();
}
protected void Reload()
{
// some logic in configuration updated the config when saving, we need to read it again
_config = Configuration.Load();
StatisticsConfiguration = StatisticsStrategyConfiguration.Load();
if (polipoRunner == null)
{
polipoRunner = new PolipoRunner();
}
if (_pacServer == null)
{
_pacServer = new PACServer();
_pacServer.PACFileChanged += pacServer_PACFileChanged;
_pacServer.UserRuleFileChanged += pacServer_UserRuleFileChanged;
}
_pacServer.UpdateConfiguration(_config);
if (gfwListUpdater == null)
{
gfwListUpdater = new GFWListUpdater();
gfwListUpdater.UpdateCompleted += pacServer_PACUpdateCompleted;
gfwListUpdater.Error += pacServer_PACUpdateError;
}
availabilityStatistics.UpdateConfiguration(this);
if (_listener != null)
{
_listener.Stop();
}
// don't put polipoRunner.Start() before pacServer.Stop()
// or bind will fail when switching bind address from 0.0.0.0 to 127.0.0.1
// though UseShellExecute is set to true now
// http://stackoverflow.com/questions/10235093/socket-doesnt-close-after-application-exits-if-a-launched-process-is-open
polipoRunner.Stop();
try
{
var strategy = GetCurrentStrategy();
if (strategy != null)
{
strategy.ReloadServers();
}
polipoRunner.Start(_config);
TCPRelay tcpRelay = new TCPRelay(this);
UDPRelay udpRelay = new UDPRelay(this);
List <Listener.Service> services = new List <Listener.Service>();
services.Add(tcpRelay);
services.Add(udpRelay);
services.Add(_pacServer);
services.Add(new PortForwarder(polipoRunner.RunningPort));
_listener = new Listener(services);
_listener.Start(_config);
}
catch (Exception e)
{
// translate Microsoft language into human language
// i.e. An attempt was made to access a socket in a way forbidden by its access permissions => Port already in use
if (e is SocketException)
{
SocketException se = (SocketException)e;
if (se.SocketErrorCode == SocketError.AccessDenied)
{
e = new Exception(I18N.GetString("Port already in use"), e);
}
}
Logging.LogUsefulException(e);
ReportError(e);
}
if (ConfigChanged != null)
{
ConfigChanged(this, new EventArgs());
}
UpdateSystemProxy();
Utils.ReleaseMemory(true);
}
private void OnAddressFullyRead(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
int bytesRead = _connection.EndReceive(ar);
var states = (object[])ar.AsyncState;
int bytesRemain = (int)states[0];
var onSuccess = (Action)states[1];
if (bytesRead >= bytesRemain)
{
_firstPacketLength = bytesRead + 2;
int atyp = _connetionRecvBuffer[0];
string dstAddr = "Unknown";
int dstPort = -1;
switch (atyp)
{
case ATYP_IPv4: // IPv4 address, 4 bytes
dstAddr = new IPAddress(_connetionRecvBuffer.Skip(1).Take(4).ToArray()).ToString();
dstPort = (_connetionRecvBuffer[5] << 8) + _connetionRecvBuffer[6];
_addrBufLength = ADDR_ATYP_LEN + 4 + ADDR_PORT_LEN;
break;
case ATYP_DOMAIN: // domain name, length + str
int len = _connetionRecvBuffer[1];
dstAddr = System.Text.Encoding.UTF8.GetString(_connetionRecvBuffer, 2, len);
dstPort = (_connetionRecvBuffer[len + 2] << 8) + _connetionRecvBuffer[len + 3];
_addrBufLength = ADDR_ATYP_LEN + 1 + len + ADDR_PORT_LEN;
break;
case ATYP_IPv6: // IPv6 address, 16 bytes
dstAddr = $"[{new IPAddress(_connetionRecvBuffer.Skip(1).Take(16).ToArray())}]";
dstPort = (_connetionRecvBuffer[17] << 8) + _connetionRecvBuffer[18];
_addrBufLength = ADDR_ATYP_LEN + 16 + ADDR_PORT_LEN;
break;
}
if (_config.isVerboseLogging)
{
Logging.Info($"connect to {dstAddr}:{dstPort}");
}
_destEndPoint = SocketUtil.GetEndPoint(dstAddr, dstPort);
onSuccess.Invoke(); /* StartConnect() */
}
else
{
Logging.Debug("failed to recv data in Shadowsocks.Controller.TCPHandler.OnAddressFullyRead()");
Close();
}
}
catch (Exception e)
{
Logging.LogUsefulException(e);
Close();
}
}
private void StartConnect()
{
try
{
CreateRemote();
// Setting up proxy
IProxy remote;
EndPoint proxyEP = null;
EndPoint serverEP = SocketUtil.GetEndPoint(_server.server, _server.server_port);
EndPoint pluginEP = _controller.GetPluginLocalEndPointIfConfigured(_server);
if (pluginEP != null)
{
serverEP = pluginEP;
remote = new DirectConnect();
}
else if (_config.proxy.useProxy)
{
switch (_config.proxy.proxyType)
{
case ProxyConfig.PROXY_SOCKS5:
remote = new Socks5Proxy();
break;
case ProxyConfig.PROXY_HTTP:
remote = new HttpProxy();
break;
default:
throw new NotSupportedException("Unknown forward proxy.");
}
proxyEP = SocketUtil.GetEndPoint(_config.proxy.proxyServer, _config.proxy.proxyPort);
}
else
{
remote = new DirectConnect();
}
var session = new AsyncSession(remote);
lock (_closeConnLock)
{
if (_closed)
{
remote.Close();
return;
}
_currentRemoteSession = session;
}
ProxyTimer proxyTimer = new ProxyTimer(_proxyTimeout)
{
AutoReset = false
};
proxyTimer.Elapsed += ProxyConnectTimer_Elapsed;
proxyTimer.Enabled = false;
proxyTimer.Session = session;
proxyTimer.DestEndPoint = serverEP;
proxyTimer.Server = _server;
_proxyConnected = false;
// Connect to the proxy server.
remote.BeginConnectProxy(proxyEP, ProxyConnectCallback,
new AsyncSession <ProxyTimer>(remote, proxyTimer));
}
catch (Exception e)
{
Logging.LogUsefulException(e);
Close();
}
}
public static void Update(Configuration config, bool forceDisable)
{
int sysProxyMode = config.sysProxyMode;
if (forceDisable)
{
sysProxyMode = (int)ProxyMode.Direct;
}
bool global = sysProxyMode == (int)ProxyMode.Global;
bool enabled = sysProxyMode != (int)ProxyMode.Direct;
Version win8 = new Version("6.2");
//if (Environment.OSVersion.Version.CompareTo(win8) < 0)
{
using (RegistryKey registry = OpenUserRegKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings", true))
{
try
{
if (enabled)
{
if (global)
{
RegistrySetValue(registry, "ProxyEnable", 1);
RegistrySetValue(registry, "ProxyServer", "127.0.0.1:" + config.localPort.ToString());
RegistrySetValue(registry, "AutoConfigURL", "");
}
else
{
string pacUrl;
pacUrl = "http://127.0.0.1:" + config.localPort.ToString() + "/pac?" + "auth=" + config.localAuthPassword + "&t=" + Util.Utils.GetTimestamp(DateTime.Now);
RegistrySetValue(registry, "ProxyEnable", 0);
RegistrySetValue(registry, "ProxyServer", "");
RegistrySetValue(registry, "AutoConfigURL", pacUrl);
}
}
else
{
RegistrySetValue(registry, "ProxyEnable", 0);
RegistrySetValue(registry, "ProxyServer", "");
RegistrySetValue(registry, "AutoConfigURL", "");
}
IEProxyUpdate(config, sysProxyMode);
SystemProxy.NotifyIE();
//Must Notify IE first, or the connections do not chanage
CopyProxySettingFromLan();
}
catch (Exception e)
{
Logging.LogUsefulException(e);
// TODO this should be moved into views
//MessageBox.Show(I18N.GetString("Failed to update registry"));
}
}
}
if (Environment.OSVersion.Version.CompareTo(win8) >= 0)
{
try
{
if (enabled)
{
if (global)
{
WinINet.SetIEProxy(true, true, "127.0.0.1:" + config.localPort.ToString(), "");
}
else
{
string pacUrl;
pacUrl = $"http://127.0.0.1:{config.localPort}/pac?auth={config.localAuthPassword}&t={Util.Utils.GetTimestamp(DateTime.Now)}";
WinINet.SetIEProxy(true, false, "", pacUrl);
}
}
else
{
WinINet.SetIEProxy(false, false, "", "");
}
}
catch (Exception ex)
{
Logging.LogUsefulException(ex);
}
}
}
public void Reload()
{
if (_port_map_listener != null)
{
foreach (var l in _port_map_listener)
{
l.Stop();
}
_port_map_listener = null;
}
// some logic in configuration updated the config when saving, we need to read it again
_config = MergeGetConfiguration(_config);
_config.FlushPortMapCache();
Logging.save_to_file = _config.logEnable;
Logging.OpenLogFile();
if (_hostDaemon == null)
{
_hostDaemon = new HostDaemon();
_hostDaemon.ChnIpChanged += (o, args) => ReloadIPRange();
_hostDaemon.UserRuleChanged += (o, args) => HostMap.Reload();
}
ReloadIPRange();
HostMap.Reload();
GlobalConfiguration.OSSupportsLocalIPv6 = Socket.OSSupportsIPv6;
if (privoxyRunner == null)
{
privoxyRunner = new HttpProxyRunner();
}
if (_pacDaemon == null)
{
_pacDaemon = new PACDaemon();
_pacDaemon.PACFileChanged += (o, args) => UpdateSystemProxy();
_pacDaemon.UserRuleFileChanged += PacDaemon_UserRuleFileChanged;
}
if (_pacServer == null)
{
_pacServer = new PACServer(_pacDaemon);
}
_pacServer.UpdatePacUrl(_config);
if (gfwListUpdater == null)
{
gfwListUpdater = new GFWListUpdater();
gfwListUpdater.UpdateCompleted += (o, args) => UpdatePACFromGFWListCompleted?.Invoke(o, args);
gfwListUpdater.Error += (o, args) => UpdatePACFromGFWListError?.Invoke(o, args);
}
if (chnDomainsAndIPUpdater == null)
{
chnDomainsAndIPUpdater = new ChnDomainsAndIPUpdater();
chnDomainsAndIPUpdater.UpdateCompleted += (o, args) => UpdatePACFromChnDomainsAndIPCompleted?.Invoke(o, args);
chnDomainsAndIPUpdater.Error += (o, args) => UpdatePACFromGFWListError?.Invoke(o, args);
}
_listener?.Stop();
privoxyRunner.Stop();
// don't put privoxyRunner.Start() before pacServer.Stop()
// or bind will fail when switching bind address from 0.0.0.0 to 127.0.0.1
// though UseShellExecute is set to true now
// http://stackoverflow.com/questions/10235093/socket-doesnt-close-after-application-exits-if-a-launched-process-is-open
try
{
privoxyRunner.Start(_config);
var local = new Local(_config, _transfer, _chnRangeSet);
var services = new List <Listener.IService>
{
local,
_pacServer,
new HttpPortForwarder(privoxyRunner.RunningPort, _config)
};
_listener = new Listener(services);
_listener.Start(_config, 0);
}
catch (Exception e)
{
// translate Microsoft language into human language
// i.e. An attempt was made to access a socket in a way forbidden by its access permissions => Port already in use
if (e is SocketException se)
{
switch (se.SocketErrorCode)
{
case SocketError.AddressAlreadyInUse:
{
e = new Exception(string.Format(I18NUtil.GetAppStringValue(@"PortInUse"), _config.localPort), se);
break;
}
case SocketError.AccessDenied:
{
e = new Exception(string.Format(I18NUtil.GetAppStringValue(@"PortReserved"), _config.localPort), se);
break;
}
}
}
Logging.LogUsefulException(e);
ReportError(e);
}
_port_map_listener = new List <Listener>();
foreach (var pair in _config.GetPortMapCache())
{
try
{
var local = new Local(_config, _transfer, _chnRangeSet);
var services = new List <Listener.IService> {
local
};
var listener = new Listener(services);
listener.Start(_config, pair.Key);
_port_map_listener.Add(listener);
}
catch (Exception e)
{
// translate Microsoft language into human language
// i.e. An attempt was made to access a socket in a way forbidden by its access permissions => Port already in use
if (e is SocketException se)
{
switch (se.SocketErrorCode)
{
case SocketError.AddressAlreadyInUse:
e = new Exception(string.Format(I18NUtil.GetAppStringValue(@"PortInUse"), pair.Key), e);
break;
case SocketError.AccessDenied:
e = new Exception(string.Format(I18NUtil.GetAppStringValue(@"PortReserved"), pair.Key), se);
break;
}
}
Logging.LogUsefulException(e);
ReportError(e);
}
}
Application.Current.Dispatcher?.Invoke(() => { ConfigChanged?.Invoke(this, new EventArgs()); });
UpdateSystemProxy();
Utils.ReleaseMemory();
}
protected void Reload()
{
Encryption.RNG.Reload();
// some logic in configuration updated the config when saving, we need to read it again
_config = Configuration.Load();
StatisticsConfiguration = StatisticsStrategyConfiguration.Load();
if (_pacServer == null)
{
_pacServer = new PACServer();
_pacServer.PACFileChanged += pacServer_PACFileChanged;
_pacServer.UserRuleFileChanged += pacServer_UserRuleFileChanged;
}
_pacServer.UpdateConfiguration(_config);
if (gfwListUpdater == null)
{
gfwListUpdater = new GFWListUpdater();
gfwListUpdater.UpdateCompleted += pacServer_PACUpdateCompleted;
gfwListUpdater.Error += pacServer_PACUpdateError;
}
availabilityStatistics.UpdateConfiguration(this);
if (_listener != null)
{
_listener.Stop();
}
try
{
var strategy = GetCurrentStrategy();
if (strategy != null)
{
strategy.ReloadServers();
}
TCPRelay tcpRelay = new TCPRelay(this, _config);
UDPRelay udpRelay = new UDPRelay(this);
List <Listener.IService> services = new List <Listener.IService>();
services.Add(_pacServer);
services.Add(tcpRelay);
services.Add(udpRelay);
_listener = new Listener(services);
_listener.Start(_config);
}
catch (Exception e)
{
// translate Microsoft language into human language
// i.e. An attempt was made to access a socket in a way forbidden by its access permissions => Port already in use
if (e is SocketException)
{
SocketException se = (SocketException)e;
if (se.SocketErrorCode == SocketError.AccessDenied)
{
e = new Exception(I18N.GetString("Port already in use"), e);
}
}
Logging.LogUsefulException(e);
ReportError(e);
}
if (ConfigChanged != null)
{
ConfigChanged(this, new EventArgs());
}
UpdateSystemProxy();
Utils.ReleaseMemory(true);
}
private void ProxyConnectCallback(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
var session = (AsyncSession <ProxyTimer>)ar.AsyncState;
ProxyTimer timer = session.State;
var destEndPoint = timer.DestEndPoint;
var server = timer.Server;
timer.Elapsed -= ProxyConnectTimer_Elapsed;
timer.Enabled = false;
timer.Dispose();
var remote = session.Remote;
// Complete the connection.
remote.EndConnectProxy(ar);
_proxyConnected = true;
if (_config.isVerboseLogging)
{
if (!(remote is DirectConnect))
{
Logging.Info($"Socket connected to proxy {remote.ProxyEndPoint}");
}
}
_startConnectTime = DateTime.Now;
ServerTimer connectTimer = new ServerTimer(_serverTimeout)
{
AutoReset = false
};
connectTimer.Elapsed += DestConnectTimer_Elapsed;
connectTimer.Enabled = true;
connectTimer.Session = session;
connectTimer.Server = server;
_destConnected = false;
NetworkCredential auth = null;
if (_config.proxy.useAuth)
{
auth = new NetworkCredential(_config.proxy.authUser, _config.proxy.authPwd);
}
// Connect to the remote endpoint.
remote.BeginConnectDest(destEndPoint, ConnectCallback,
new AsyncSession <ServerTimer>(session, connectTimer), auth);
}
catch (ArgumentException)
{
}
catch (Exception e)
{
Logging.LogUsefulException(e);
Close();
}
}
private void PipeConnectionReceiveCallback(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
if (connection == null)
{
return;
}
int bytesRead = connection.EndReceive(ar);
_totalWrite += bytesRead;
var session = (AsyncSession <bool>)ar.AsyncState;
var remote = session.Remote;
if (bytesRead > 0)
{
/*
* Only the first packet contains the socks5 header, it doesn't make sense to parse every packets.
* Also it's unnecessary to parse these data if we turn off the VerboseLogging.
*/
if (session.State && _config.isVerboseLogging)
{
int atyp = _connetionRecvBuffer[0];
string dst_addr;
int dst_port;
switch (atyp)
{
case 1: // IPv4 address, 4 bytes
dst_addr = new IPAddress(_connetionRecvBuffer.Skip(1).Take(4).ToArray()).ToString();
dst_port = (_connetionRecvBuffer[5] << 8) + _connetionRecvBuffer[6];
Logging.Info($"connect to {dst_addr}:{dst_port}");
session.State = false;
break;
case 3: // domain name, length + str
int len = _connetionRecvBuffer[1];
dst_addr = System.Text.Encoding.UTF8.GetString(_connetionRecvBuffer, 2, len);
dst_port = (_connetionRecvBuffer[len + 2] << 8) + _connetionRecvBuffer[len + 3];
Logging.Info($"connect to {dst_addr}:{dst_port}");
session.State = false;
break;
case 4: // IPv6 address, 16 bytes
dst_addr = new IPAddress(_connetionRecvBuffer.Skip(1).Take(16).ToArray()).ToString();
dst_port = (_connetionRecvBuffer[17] << 8) + _connetionRecvBuffer[18];
Logging.Info($"connect to [{dst_addr}]:{dst_port}");
session.State = false;
break;
}
}
int bytesToSend;
lock (_encryptionLock)
{
if (_closed)
{
return;
}
encryptor.Encrypt(_connetionRecvBuffer, bytesRead, _connetionSendBuffer, out bytesToSend);
}
_tcprelay.UpdateOutboundCounter(server, bytesToSend);
_startSendingTime = DateTime.Now;
_bytesToSend = bytesToSend;
remote.BeginSend(_connetionSendBuffer, 0, bytesToSend, SocketFlags.None, new AsyncCallback(PipeRemoteSendCallback), session);
IStrategy strategy = controller.GetCurrentStrategy();
strategy?.UpdateLastWrite(server);
}
else
{
remote.Shutdown(SocketShutdown.Send);
_remoteShutdown = true;
CheckClose();
}
}
catch (Exception e)
{
Logging.LogUsefulException(e);
Close();
}
}
private void Connect()
{
try
{
IPAddress ipAddress = null;
int _targetPort = 0;
{
if (_firstPacket[0] == 1)
{
byte[] addr = new byte[4];
Array.Copy(_firstPacket, 1, addr, 0, addr.Length);
ipAddress = new IPAddress(addr);
_targetPort = (_firstPacket[5] << 8) | _firstPacket[6];
_remote_host = ipAddress.ToString();
Logging.Info((_local_proxy ? "Local proxy" : "Direct") + " connect " + _remote_host + ":" + _targetPort.ToString());
}
else if (_firstPacket[0] == 4)
{
byte[] addr = new byte[16];
Array.Copy(_firstPacket, 1, addr, 0, addr.Length);
ipAddress = new IPAddress(addr);
_targetPort = (_firstPacket[17] << 8) | _firstPacket[18];
_remote_host = ipAddress.ToString();
Logging.Info((_local_proxy ? "Local proxy" : "Direct") + " connect " + _remote_host + ":" + _targetPort.ToString());
}
else if (_firstPacket[0] == 3)
{
int len = _firstPacket[1];
byte[] addr = new byte[len];
Array.Copy(_firstPacket, 2, addr, 0, addr.Length);
_remote_host = Encoding.UTF8.GetString(_firstPacket, 2, len);
_targetPort = (_firstPacket[len + 2] << 8) | _firstPacket[len + 3];
Logging.Info((_local_proxy ? "Local proxy" : "Direct") + " connect " + _remote_host + ":" + _targetPort.ToString());
//if (!_local_proxy)
{
if (!IPAddress.TryParse(_remote_host, out ipAddress))
{
if (_config.proxyRuleMode == (int)ProxyRuleMode.UserCustom)
{
Shadowsocks.Model.HostMap hostMap = HostMap.Instance();
string host_addr;
if (hostMap.GetHost(_remote_host, out host_addr))
{
if (!String.IsNullOrEmpty(host_addr))
{
string lower_host_addr = host_addr.ToLower();
if (lower_host_addr.StartsWith("reject"))
{
Close();
return;
}
else if (lower_host_addr.IndexOf('.') >= 0 || lower_host_addr.IndexOf(':') >= 0)
{
if (!IPAddress.TryParse(lower_host_addr, out ipAddress))
{
//
}
}
}
}
}
if (ipAddress == null)
{
ipAddress = Utils.DnsBuffer.Get(_remote_host);
}
}
if (ipAddress == null)
{
if (_remote_host.IndexOf('.') >= 0)
{
ipAddress = Util.Utils.QueryDns(_remote_host, _config.dnsServer);
}
else
{
ipAddress = Utils.QueryDns(_remote_host, null);
}
}
if (ipAddress != null)
{
Utils.DnsBuffer.Set(_remote_host, new IPAddress(ipAddress.GetAddressBytes()));
Utils.DnsBuffer.Sweep();
}
else
{
if (!_local_proxy)
{
throw new SocketException((int)SocketError.HostNotFound);
}
}
}
}
_remote_port = _targetPort;
}
if (ipAddress != null && _config.proxyRuleMode == (int)ProxyRuleMode.UserCustom)
{
Shadowsocks.Model.HostMap hostMap = HostMap.Instance();
string host_addr;
if (hostMap.GetIP(ipAddress, out host_addr))
{
string lower_host_addr = host_addr.ToLower();
if (lower_host_addr.StartsWith("reject")
)
{
Close();
return;
}
}
}
if (_local_proxy)
{
IPAddress.TryParse(_config.proxyHost, out ipAddress);
_targetPort = _config.proxyPort;
}
// ProxyAuth recv only socks5 head, so don't need to save anything else
IPEndPoint remoteEP = new IPEndPoint(ipAddress, _targetPort);
_remote = new ProxySocketTun(ipAddress.AddressFamily,
SocketType.Stream, ProtocolType.Tcp);
_remote.GetSocket().NoDelay = true;
// Connect to the remote endpoint.
_remote.BeginConnect(remoteEP,
new AsyncCallback(ConnectCallback), null);
}
catch (Exception e)
{
Logging.LogUsefulException(e);
Close();
}
}
public void AcceptCallback(IAsyncResult ar)
{
if (_stop)
{
return;
}
Socket listener = (Socket)ar.AsyncState;
try
{
Socket conn = listener.EndAccept(ar);
if ((_authUser ?? "").Length == 0 && !Util.Utils.isLAN(conn))
{
conn.Shutdown(SocketShutdown.Both);
conn.Close();
}
else
{
byte[] buf = new byte[4096];
object[] state = new object[] {
conn,
buf
};
int local_port = ((IPEndPoint)conn.LocalEndPoint).Port;
if (!_config.GetPortMapCache().ContainsKey(local_port))
{
conn.BeginReceive(buf, 0, buf.Length, 0,
new AsyncCallback(ReceiveCallback), state);
}
else
{
foreach (Service service in _services)
{
if (service.Handle(buf, 0, conn))
{
return;
}
}
// no service found for this
// shouldn't happen
conn.Shutdown(SocketShutdown.Both);
conn.Close();
}
}
}
catch (ObjectDisposedException)
{
}
catch (Exception e)
{
Console.WriteLine(e);
}
finally
{
try
{
listener.BeginAccept(
new AsyncCallback(AcceptCallback),
listener);
}
catch (ObjectDisposedException)
{
// do nothing
}
catch (Exception e)
{
Logging.LogUsefulException(e);
ResetTimeout(5, listener);
}
}
}
private void Connect()
{
try
{
IPAddress ipAddress = null;
int _targetPort = 0;
{
if (_firstPacket[0] == 1)
{
byte[] addr = new byte[4];
Array.Copy(_firstPacket, 1, addr, 0, addr.Length);
ipAddress = new IPAddress(addr);
_targetPort = (_firstPacket[5] << 8) | _firstPacket[6];
_remote_host = ipAddress.ToString();
System.Diagnostics.Debug.WriteLine("[" + DateTime.Now.ToString() + "]" + "Direct connect " + _remote_host + ":" + _targetPort.ToString());
}
else if (_firstPacket[0] == 4)
{
byte[] addr = new byte[16];
Array.Copy(_firstPacket, 1, addr, 0, addr.Length);
ipAddress = new IPAddress(addr);
_targetPort = (_firstPacket[17] << 8) | _firstPacket[18];
_remote_host = ipAddress.ToString();
System.Diagnostics.Debug.WriteLine("[" + DateTime.Now.ToString() + "]" + "Direct connect " + _remote_host + ":" + _targetPort.ToString());
}
else if (_firstPacket[0] == 3)
{
int len = _firstPacket[1];
byte[] addr = new byte[len];
Array.Copy(_firstPacket, 2, addr, 0, addr.Length);
_remote_host = Encoding.UTF8.GetString(_firstPacket, 2, len);
_targetPort = (_firstPacket[len + 2] << 8) | _firstPacket[len + 3];
System.Diagnostics.Debug.WriteLine("[" + DateTime.Now.ToString() + "]" + "Direct connect " + _remote_host + ":" + _targetPort.ToString());
if (!_remote_go_proxy)
{
if (!IPAddress.TryParse(_remote_host, out ipAddress))
{
ipAddress = Utils.DnsBuffer.Get(_remote_host);
}
if (ipAddress == null)
{
ipAddress = Utils.QueryDns(_remote_host, _config.dns_server);
}
if (ipAddress != null)
{
Utils.DnsBuffer.Set(_remote_host, ipAddress);
Utils.DnsBuffer.Sweep();
}
else
{
throw new SocketException((int)SocketError.HostNotFound);
}
}
}
_remote_port = _targetPort;
}
if (_remote_go_proxy)
{
IPAddress.TryParse(_config.proxyHost, out ipAddress);
_targetPort = _config.proxyPort;
}
// ProxyAuth recv only socks5 head, so don't need to save anything else
IPEndPoint remoteEP = new IPEndPoint(ipAddress, _targetPort);
_remote = new ProxySocketTun(ipAddress.AddressFamily,
SocketType.Stream, ProtocolType.Tcp);
_remote.GetSocket().SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
// Connect to the remote endpoint.
_remote.BeginConnect(remoteEP,
new AsyncCallback(ConnectCallback), null);
}
catch (Exception e)
{
Logging.LogUsefulException(e);
Close();
}
}
protected void Reload()
{
Encryption.RNG.Reload();
// some logic in configuration updated the config when saving, we need to read it again
_config = Configuration.Load();
StatisticsConfiguration = StatisticsStrategyConfiguration.Load();
privoxyRunner = privoxyRunner ?? new PrivoxyRunner();
_pacDaemon = _pacDaemon ?? new PACDaemon();
_pacDaemon.PACFileChanged += PacDaemon_PACFileChanged;
_pacDaemon.UserRuleFileChanged += PacDaemon_UserRuleFileChanged;
_pacServer = _pacServer ?? new PACServer(_pacDaemon);
gfwListUpdater = gfwListUpdater ?? new GFWListUpdater();
gfwListUpdater.UpdateCompleted += PacServer_PACUpdateCompleted;
gfwListUpdater.Error += PacServer_PACUpdateError;
availabilityStatistics.UpdateConfiguration(this);
_listener?.Stop();
StopPlugins();
// don't put PrivoxyRunner.Start() before pacServer.Stop()
// or bind will fail when switching bind address from 0.0.0.0 to 127.0.0.1
// though UseShellExecute is set to true now
// http://stackoverflow.com/questions/10235093/socket-doesnt-close-after-application-exits-if-a-launched-process-is-open
privoxyRunner.Stop();
try
{
var strategy = GetCurrentStrategy();
strategy?.ReloadServers();
StartPlugin();
privoxyRunner.Start(_config);
TCPRelay tcpRelay = new TCPRelay(this, _config);
UDPRelay udpRelay = new UDPRelay(this);
List <Listener.IService> services = new List <Listener.IService>
{
tcpRelay,
udpRelay,
_pacServer,
new PortForwarder(privoxyRunner.RunningPort)
};
_listener = new Listener(services);
_listener.Start(_config);
}
catch (Exception e)
{
// translate Microsoft language into human language
// i.e. An attempt was made to access a socket in a way forbidden by its access permissions => Port already in use
if (e is SocketException se)
{
if (se.SocketErrorCode == SocketError.AddressAlreadyInUse)
{
e = new Exception(I18N.GetString("Port {0} already in use", _config.localPort), e);
}
else if (se.SocketErrorCode == SocketError.AccessDenied)
{
e = new Exception(I18N.GetString("Port {0} is reserved by system", _config.localPort), e);
}
}
Logging.LogUsefulException(e);
ReportError(e);
}
ConfigChanged?.Invoke(this, new EventArgs());
UpdateSystemProxy();
Utils.ReleaseMemory(true);
}
private void AcceptCallback(IAsyncResult ar)
{
if (_stop)
{
return;
}
var listener = (Socket)ar.AsyncState;
try
{
var conn = listener.EndAccept(ar);
if (!_shareOverLAN && !Util.Utils.isLocal(conn))
{
conn.Shutdown(SocketShutdown.Both);
conn.Close();
}
var localPort = ((IPEndPoint)conn.LocalEndPoint).Port;
if ((_authUser ?? string.Empty).Length == 0 && !Util.Utils.isLAN(conn) &&
!(_config.GetPortMapCache().ContainsKey(localPort) ||
_config.GetPortMapCache()[localPort].type == PortMapType.Forward))
{
conn.Shutdown(SocketShutdown.Both);
conn.Close();
}
else
{
var buf = new byte[4096];
object[] state =
{
conn,
buf
};
if (!_config.GetPortMapCache().ContainsKey(localPort) || _config.GetPortMapCache()[localPort].type != PortMapType.Forward)
{
conn.BeginReceive(buf, 0, buf.Length, 0, ReceiveCallback, state);
}
else
{
if (_services.Any(service => service.Handle(buf, 0, conn)))
{
return;
}
// no service found for this
// shouldn't happen
conn.Shutdown(SocketShutdown.Both);
conn.Close();
}
}
}
catch (ObjectDisposedException)
{
}
catch (Exception e)
{
Console.WriteLine(e);
}
finally
{
try
{
listener.BeginAccept(AcceptCallback, listener);
}
catch (ObjectDisposedException)
{
// do nothing
}
catch (Exception e)
{
Logging.LogUsefulException(e);
ResetTimeout(5, listener);
}
}
}
protected void Reload()
{
if (_port_map_listener != null)
{
foreach (Listener l in _port_map_listener)
{
l.Stop();
}
_port_map_listener = null;
}
// some logic in configuration updated the config when saving, we need to read it again
_config = MergeGetConfiguration(_config);
_config.FlushPortMapCache();
ReloadIPRange();
HostMap hostMap = new HostMap();
hostMap.LoadHostFile();
HostMap.Instance().Clear(hostMap);
#if !_CONSOLE
if (polipoRunner == null)
{
polipoRunner = new HttpProxyRunner();
}
#endif
if (_pacServer == null)
{
_pacServer = new PACServer();
_pacServer.PACFileChanged += pacServer_PACFileChanged;
}
_pacServer.UpdateConfiguration(_config);
if (gfwListUpdater == null)
{
gfwListUpdater = new GFWListUpdater();
gfwListUpdater.UpdateCompleted += pacServer_PACUpdateCompleted;
gfwListUpdater.Error += pacServer_PACUpdateError;
}
if (chnDomainsAndIPUpdater == null)
{
chnDomainsAndIPUpdater = new ChnDomainsAndIPUpdater();
chnDomainsAndIPUpdater.UpdateCompleted += pacServer_PACUpdateCompleted;
chnDomainsAndIPUpdater.Error += pacServer_PACUpdateError;
}
// don't put polipoRunner.Start() before pacServer.Stop()
// or bind will fail when switching bind address from 0.0.0.0 to 127.0.0.1
// though UseShellExecute is set to true now
// http://stackoverflow.com/questions/10235093/socket-doesnt-close-after-application-exits-if-a-launched-process-is-open
bool _firstRun = firstRun;
for (int i = 1; i <= 5; ++i)
{
_firstRun = false;
try
{
if (_listener != null && !_listener.IsConfigChange(_config))
{
Local local = new Local(_config, _transfer, _rangeSet);
_listener.GetServices()[0] = local;
#if !_CONSOLE
if (polipoRunner.HasExited())
{
polipoRunner.Stop();
polipoRunner.Start(_config);
_listener.GetServices()[3] = new HttpPortForwarder(polipoRunner.RunningPort, _config);
}
#endif
}
else
{
if (_listener != null)
{
_listener.Stop();
_listener = null;
}
#if !_CONSOLE
polipoRunner.Stop();
polipoRunner.Start(_config);
#endif
Local local = new Local(_config, _transfer, _rangeSet);
List <Listener.Service> services = new List <Listener.Service>();
services.Add(local);
services.Add(_pacServer);
services.Add(new APIServer(this, _config));
#if !_CONSOLE
services.Add(new HttpPortForwarder(polipoRunner.RunningPort, _config));
#endif
_listener = new Listener(services);
_listener.Start(_config, 0);
}
break;
}
catch (Exception e)
{
// translate Microsoft language into human language
// i.e. An attempt was made to access a socket in a way forbidden by its access permissions => Port already in use
if (e is SocketException)
{
SocketException se = (SocketException)e;
if (se.SocketErrorCode == SocketError.AccessDenied)
{
e = new Exception(I18N.GetString("Port already in use") + string.Format(" {0}", _config.localPort), e);
}
}
Logging.LogUsefulException(e);
if (!_firstRun)
{
ReportError(e);
break;
}
else
{
Thread.Sleep(1000 * i * i);
}
if (_listener != null)
{
_listener.Stop();
_listener = null;
}
}
}
_port_map_listener = new List <Listener>();
foreach (KeyValuePair <int, PortMapConfigCache> pair in _config.GetPortMapCache())
{
try
{
Local local = new Local(_config, _transfer, _rangeSet);
List <Listener.Service> services = new List <Listener.Service>();
services.Add(local);
Listener listener = new Listener(services);
listener.Start(_config, pair.Key);
_port_map_listener.Add(listener);
}
catch (Exception e)
{
// translate Microsoft language into human language
// i.e. An attempt was made to access a socket in a way forbidden by its access permissions => Port already in use
if (e is SocketException)
{
SocketException se = (SocketException)e;
if (se.SocketErrorCode == SocketError.AccessDenied)
{
e = new Exception(I18N.GetString("Port already in use") + string.Format(" {0}", pair.Key), e);
}
}
Logging.LogUsefulException(e);
ReportError(e);
}
}
ConfigChanged?.Invoke(this, new EventArgs());
UpdateSystemProxy();
Util.Utils.ReleaseMemory();
}
public void Start(Configuration config, int port)
{
_config = config;
_shareOverLAN = config.shareOverLan;
_authUser = config.authUser;
_authPass = config.authPass;
_stop = false;
var localPort = port == 0 ? _config.localPort : port;
if (CheckIfPortInUse(localPort))
{
throw new Exception(I18N.GetString("Port already in use"));
}
try
{
// Create a TCP/IP socket.
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
try
{
_socket_v6 = new Socket(AddressFamily.InterNetworkV6, SocketType.Stream, ProtocolType.Tcp);
_socket_v6.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
}
catch
{
_socket_v6 = null;
}
var localEndPoint = new IPEndPoint(IPAddress.Any, localPort);
var localEndPointV6 = new IPEndPoint(IPAddress.IPv6Any, localPort);
// Bind the socket to the local endpoint and listen for incoming connections.
_socket.Bind(localEndPoint);
_socket.Listen(1024);
if (_socket_v6 != null)
{
_socket_v6.Bind(localEndPointV6);
_socket_v6.Listen(1024);
}
// Start an asynchronous socket to listen for connections.
Console.WriteLine($@"ShadowsocksR started on port {localPort}");
_socket.BeginAccept(AcceptCallback, _socket);
_socket_v6?.BeginAccept(AcceptCallback, _socket_v6);
}
catch (SocketException e)
{
Logging.LogUsefulException(e);
if (_socket != null)
{
_socket.Close();
_socket = null;
}
if (_socket_v6 != null)
{
_socket_v6.Close();
_socket_v6 = null;
}
throw;
}
}
public void Start(int port = 0)
{
_stop = false;
int localPort = port == 0 ? Config.localPort : port;
if (CheckIfPortInUse(localPort))
{
throw new Exception(I18N.GetString("Port already in use"));
}
try
{
// Create a TCP/IP socket.
bool ipv6 = true;
//bool ipv6 = false;
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
if (ipv6)
{
try
{
_socket_v6 = new Socket(AddressFamily.InterNetworkV6, SocketType.Stream, ProtocolType.Tcp);
//_socket_v6.SetSocketOption(SocketOptionLevel.IPv6, (SocketOptionName)27, false);
_socket_v6.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
}
catch
{
_socket_v6 = null;
}
}
IPEndPoint localEndPoint = null;
IPEndPoint localEndPointV6 = null;
localEndPoint = new IPEndPoint(IPAddress.Any, localPort);
localEndPointV6 = new IPEndPoint(IPAddress.IPv6Any, localPort);
// Bind the socket to the local endpoint and listen for incoming connections.
if (_socket_v6 != null)
{
_socket_v6.Bind(localEndPointV6);
_socket_v6.Listen(1024);
}
//try
{
//throw new SocketException();
_socket.Bind(localEndPoint);
_socket.Listen(1024);
}
//catch (SocketException e)
//{
// if (_socket_v6 == null)
// {
// throw e;
// }
// else
// {
// _socket.Close();
// _socket = _socket_v6;
// _socket_v6 = null;
// }
//}
// Start an asynchronous socket to listen for connections.
Console.WriteLine("ShadowsocksR started on port " + localPort.ToString());
_socket.BeginAccept(
new AsyncCallback(AcceptCallback),
_socket);
if (_socket_v6 != null)
{
_socket_v6.BeginAccept(
new AsyncCallback(AcceptCallback),
_socket_v6);
}
}
catch (SocketException e)
{
Logging.LogUsefulException(e);
if (_socket != null)
{
_socket.Close();
_socket = null;
}
if (_socket_v6 != null)
{
_socket_v6.Close();
_socket_v6 = null;
}
throw;
}
}