HttpWebRequest CreateHttpWebRequest(TimeSpan timeout)
{
TimeoutHelper helper = new TimeoutHelper(timeout);
ChannelParameterCollection channelParameterCollection = new ChannelParameterCollection();
HttpWebRequest request;
if (HttpChannelFactory <IDuplexSessionChannel> .MapIdentity(this.RemoteAddress, this.channelFactory.AuthenticationScheme))
{
lock (ThisLock)
{
this.cleanupIdentity = HttpTransportSecurityHelpers.AddIdentityMapping(Via, RemoteAddress);
}
}
this.channelFactory.CreateAndOpenTokenProviders(
this.RemoteAddress,
this.Via,
channelParameterCollection,
helper.RemainingTime(),
out this.webRequestTokenProvider,
out this.webRequestProxyTokenProvider);
SecurityTokenContainer clientCertificateToken = null;
HttpsChannelFactory <IDuplexSessionChannel> httpsChannelFactory = this.channelFactory as HttpsChannelFactory <IDuplexSessionChannel>;
if (httpsChannelFactory != null && httpsChannelFactory.RequireClientCertificate)
{
SecurityTokenProvider certificateProvider = httpsChannelFactory.CreateAndOpenCertificateTokenProvider(this.RemoteAddress, this.Via, channelParameterCollection, helper.RemainingTime());
clientCertificateToken = httpsChannelFactory.GetCertificateSecurityToken(certificateProvider, this.RemoteAddress, this.Via, channelParameterCollection, ref helper);
}
request = this.channelFactory.GetWebRequest(this.RemoteAddress, this.Via, this.webRequestTokenProvider, this.webRequestProxyTokenProvider, clientCertificateToken, helper.RemainingTime(), true);
// If a web socket connection factory is specified (for example, when using web sockets on pre-Win8 OS),
// we're going to use the protocol version from it. At the moment, on pre-Win8 OS, the HttpWebRequest
// created above doesn't have the version header specified.
if (this.connectionFactory != null)
{
this.UseWebSocketVersionFromFactory(request);
}
this.webSocketKey = request.Headers[WebSocketHelper.SecWebSocketKey];
this.ConfigureHttpWebRequestHeader(request);
request.Timeout = (int)helper.RemainingTime().TotalMilliseconds;
return(request);
}
protected internal override async Task OnOpenAsync(TimeSpan timeout)
{
TimeoutHelper helper = new TimeoutHelper(timeout);
bool success = false;
try
{
if (WcfEventSource.Instance.WebSocketConnectionRequestSendStartIsEnabled())
{
WcfEventSource.Instance.WebSocketConnectionRequestSendStart(
EventTraceActivity,
RemoteAddress != null ? RemoteAddress.ToString() : string.Empty);
}
ChannelParameterCollection channelParameterCollection = new ChannelParameterCollection();
if (HttpChannelFactory <IDuplexSessionChannel> .MapIdentity(this.RemoteAddress, _channelFactory.AuthenticationScheme))
{
lock (ThisLock)
{
_cleanupIdentity = HttpTransportSecurityHelpers.AddIdentityMapping(Via, RemoteAddress);
}
}
X509Certificate2 clientCertificate = null;
HttpsChannelFactory <IDuplexSessionChannel> httpsChannelFactory = _channelFactory as HttpsChannelFactory <IDuplexSessionChannel>;
if (httpsChannelFactory != null && httpsChannelFactory.RequireClientCertificate)
{
var certificateProvider = httpsChannelFactory.CreateAndOpenCertificateTokenProvider(RemoteAddress, Via, channelParameterCollection, helper.RemainingTime());
var clientCertificateToken = httpsChannelFactory.GetCertificateSecurityToken(certificateProvider, RemoteAddress, Via, channelParameterCollection, ref helper);
var x509Token = (X509SecurityToken)clientCertificateToken.Token;
clientCertificate = x509Token.Certificate;
}
try
{
WebSocket = await CreateWebSocketWithFactoryAsync(clientCertificate, helper);
}
finally
{
if (WebSocket != null && _cleanupStarted)
{
WebSocket.Abort();
CommunicationObjectAbortedException communicationObjectAbortedException = new CommunicationObjectAbortedException(
new WebSocketException(WebSocketError.ConnectionClosedPrematurely).Message);
FxTrace.Exception.AsWarning(communicationObjectAbortedException);
throw communicationObjectAbortedException;
}
}
bool inputUseStreaming = TransferModeHelper.IsResponseStreamed(TransferMode);
SetMessageSource(new WebSocketMessageSource(
this,
WebSocket,
inputUseStreaming,
this));
success = true;
if (WcfEventSource.Instance.WebSocketConnectionRequestSendStopIsEnabled())
{
WcfEventSource.Instance.WebSocketConnectionRequestSendStop(
EventTraceActivity,
WebSocket != null ? WebSocket.GetHashCode() : -1);
}
}
catch (WebSocketException ex)
{
if (WcfEventSource.Instance.WebSocketConnectionFailedIsEnabled())
{
WcfEventSource.Instance.WebSocketConnectionFailed(EventTraceActivity, ex.Message);
}
TryConvertAndThrow(ex);
}
finally
{
CleanupTokenProviders();
if (!success)
{
CleanupOnError();
}
}
}
