private WindowsIdentity Authenticate(ref Stream netStream, TcpServerSocketHandler streamManager)
{
// Use the identity for impersonation etc.
NegotiateStream negoServer = null;
try
{
negoServer = new NegotiateStream(netStream);
// Block for authentication request
TokenImpersonationLevel impLevel = TokenImpersonationLevel.Identification;
if (_impersonate)
{
impLevel = TokenImpersonationLevel.Impersonation;
}
negoServer.AuthenticateAsServer((NetworkCredential)CredentialCache.DefaultCredentials, _protectionLevel, impLevel);
netStream = negoServer;
return((WindowsIdentity)negoServer.RemoteIdentity);
}
catch
{
streamManager.SendErrorResponse(
String.Format(CultureInfo.CurrentCulture, CoreChannel.GetResourceString("Remoting_Tcp_ServerAuthenticationFailed")), false);
if (negoServer != null)
{
negoServer.Close();
}
throw;
}
}
private WindowsIdentity Authenticate(ref Stream netStream, TcpServerSocketHandler streamManager)
{
NegotiateStream stream = null;
WindowsIdentity remoteIdentity;
try
{
stream = new NegotiateStream(netStream);
TokenImpersonationLevel identification = TokenImpersonationLevel.Identification;
if (this._impersonate)
{
identification = TokenImpersonationLevel.Impersonation;
}
stream.AuthenticateAsServer((NetworkCredential)CredentialCache.DefaultCredentials, this._protectionLevel, identification);
netStream = stream;
remoteIdentity = (WindowsIdentity)stream.RemoteIdentity;
}
catch
{
streamManager.SendErrorResponse(string.Format(CultureInfo.CurrentCulture, CoreChannel.GetResourceString("Remoting_Tcp_ServerAuthenticationFailed"), new object[0]), false);
if (stream != null)
{
stream.Close();
}
throw;
}
return(remoteIdentity);
}
private WindowsIdentity Authenticate(ref Stream netStream, TcpServerSocketHandler streamManager)
{
// Use the identity for impersonation etc.
NegotiateStream negoServer = null;
try
{
negoServer = new NegotiateStream(netStream);
// Block for authentication request
TokenImpersonationLevel impLevel = TokenImpersonationLevel.Identification;
if (_impersonate)
impLevel = TokenImpersonationLevel.Impersonation;
negoServer.AuthenticateAsServer((NetworkCredential)CredentialCache.DefaultCredentials, _protectionLevel, impLevel);
netStream = negoServer;
return (WindowsIdentity)negoServer.RemoteIdentity;
}
catch
{
streamManager.SendErrorResponse(
String.Format(CultureInfo.CurrentCulture, CoreChannel.GetResourceString("Remoting_Tcp_ServerAuthenticationFailed")), false);
if (negoServer != null)
negoServer.Close();
throw;
}
}
// AcceptSocket method which will invoke the
// authorization callbacks
void AcceptSocketCallback(IAsyncResult ar)
{
Socket socket = null;
InternalRemotingServices.RemotingTrace("TCPChannel::Listen - tcpListen.Pending() == true");
TcpServerSocketHandler streamManager = null;
bool closeImmediately = true;
try
{
//
// Wait for an incoming socket
// if the listener is still active
if (_tcpListener.IsListening)
{
_tcpListener.BeginAcceptSocket(_acceptSocketCallback, null);
}
socket = _tcpListener.EndAcceptSocket(ar);
if (socket == null)
{
throw new RemotingException(
String.Format(
CultureInfo.CurrentCulture, CoreChannel.GetResourceString("Remoting_Socket_Accept"),
Marshal.GetLastWin32Error().ToString(CultureInfo.CurrentCulture)));
}
if (_authorizeRemotingConnection != null)
{
bool authorized = _authorizeRemotingConnection.IsConnectingEndPointAuthorized(socket.RemoteEndPoint);
if (!authorized)
{
throw new RemotingException(CoreChannel.GetResourceString(
"Remoting_Tcp_ServerAuthorizationEndpointFailed"));
}
}
// disable nagle delay
socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, 1);
// Set keepalive flag, so that inactive sockets can be cleaned up
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, 1);
// set linger option
LingerOption lingerOption = new LingerOption(true, 3);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger, lingerOption);
Stream netStream = new SocketStream(socket);
streamManager = new TcpServerSocketHandler(socket, CoreChannel.RequestQueue, netStream);
// If authentication is requested wait for auth request.
closeImmediately = false;
if (_secure)
{
throw new NotSupportedException();
}
streamManager.DataArrivedCallback = new WaitCallback(_transportSink.ServiceRequest);
streamManager.BeginReadMessage();
}
catch (Exception e)
{
// Close the socket pre-emptively. We also close the socket if
// We need to catch all exceptions if we hit ObjectDisposedException
try{
if (streamManager != null)
{
streamManager.SendErrorResponse(e, false);
}
if (socket != null)
{
if (closeImmediately)
{
socket.Close(0);
}
else
{
socket.Close();
}
}
}catch (Exception) {}
if (!_bListening)
{
// We called Stop() on the tcp listener, so gracefully exit.
//bOkToListen = false;
}
else
{
// we want the exception to show up as unhandled since this
// is an unexpected failure.
if (!(e is SocketException))
{
//throw;
}
}
}
}
// AcceptSocket method which will invoke the
// authorization callbacks
void AcceptSocketCallback(IAsyncResult ar)
{
Socket socket = null;
InternalRemotingServices.RemotingTrace("TCPChannel::Listen - tcpListen.Pending() == true");
TcpServerSocketHandler streamManager = null;
bool closeImmediately = true;
try
{
//
// Wait for an incoming socket
// if the listener is still active
if (_tcpListener.IsListening)
_tcpListener.BeginAcceptSocket(_acceptSocketCallback, null);
socket = _tcpListener.EndAcceptSocket(ar);
if (socket == null)
{
throw new RemotingException(
String.Format(
CultureInfo.CurrentCulture, CoreChannel.GetResourceString("Remoting_Socket_Accept"),
Marshal.GetLastWin32Error().ToString(CultureInfo.CurrentCulture)));
}
if (_authorizeRemotingConnection != null)
{
bool authorized = _authorizeRemotingConnection.IsConnectingEndPointAuthorized(socket.RemoteEndPoint);
if (!authorized)
throw new RemotingException(CoreChannel.GetResourceString(
"Remoting_Tcp_ServerAuthorizationEndpointFailed"));
}
// disable nagle delay
socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, 1);
// Set keepalive flag, so that inactive sockets can be cleaned up
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, 1);
// set linger option
LingerOption lingerOption = new LingerOption(true, 3);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger, lingerOption);
Stream netStream = new SocketStream(socket);
streamManager = new TcpServerSocketHandler(socket, CoreChannel.RequestQueue, netStream);
// If authentication is requested wait for auth request.
closeImmediately = false;
if (_secure)
{
throw new NotSupportedException();
}
streamManager.DataArrivedCallback = new WaitCallback(_transportSink.ServiceRequest);
streamManager.BeginReadMessage();
}
catch (Exception e)
{
// Close the socket pre-emptively. We also close the socket if
// We need to catch all exceptions if we hit ObjectDisposedException
try{
if (streamManager != null){
streamManager.SendErrorResponse(e, false);
}
if (socket != null){
if (closeImmediately)
socket.Close(0);
else
socket.Close();
}
}catch(Exception){}
if (!_bListening)
{
// We called Stop() on the tcp listener, so gracefully exit.
//bOkToListen = false;
}
else
{
// we want the exception to show up as unhandled since this
// is an unexpected failure.
if (!(e is SocketException))
{
//throw;
}
}
}
}
private WindowsIdentity Authenticate(ref Stream netStream, TcpServerSocketHandler streamManager)
{
NegotiateStream stream = null;
WindowsIdentity remoteIdentity;
try
{
stream = new NegotiateStream(netStream);
TokenImpersonationLevel identification = TokenImpersonationLevel.Identification;
if (this._impersonate)
{
identification = TokenImpersonationLevel.Impersonation;
}
stream.AuthenticateAsServer((NetworkCredential) CredentialCache.DefaultCredentials, this._protectionLevel, identification);
netStream = stream;
remoteIdentity = (WindowsIdentity) stream.RemoteIdentity;
}
catch
{
streamManager.SendErrorResponse(string.Format(CultureInfo.CurrentCulture, CoreChannel.GetResourceString("Remoting_Tcp_ServerAuthenticationFailed"), new object[0]), false);
if (stream != null)
{
stream.Close();
}
throw;
}
return remoteIdentity;
}
