System.ServiceModel.Channels.HttpRequestChannel.BeginProcessRequest C# (CSharp) Метод

		void BeginProcessRequest (HttpChannelRequestAsyncResult result)
		{
			Message message = result.Message;
			TimeSpan timeout = result.Timeout;
			// FIXME: is distination really like this?
			Uri destination = message.Headers.To;
			if (destination == null) {
				if (source.Transport.ManualAddressing)
					throw new InvalidOperationException ("When manual addressing is enabled on the transport, every request messages must be set its destination address.");
				 else
				 	destination = Via ?? RemoteAddress.Uri;
			}

			var web_request = HttpWebRequest.Create (destination);
			web_requests.Add (web_request);
			result.WebRequest = web_request;
			web_request.Method = "POST";
			web_request.ContentType = Encoder.ContentType;
#if NET_2_1
			HttpWebRequest hwr = (web_request as HttpWebRequest);
#if MOONLIGHT
			if (hwr.SupportsCookieContainer) {
#endif
				var cmgr = source.GetProperty<IHttpCookieContainerManager> ();
				if (cmgr != null)
					hwr.CookieContainer = cmgr.CookieContainer;
#if MOONLIGHT
			}
#endif
#endif

#if !MOONLIGHT // until we support NetworkCredential like SL4 will do.
			// client authentication (while SL3 has NetworkCredential class, it is not implemented yet. So, it is non-SL only.)
			var httpbe = (HttpTransportBindingElement) source.Transport;
			string authType = null;
			switch (httpbe.AuthenticationScheme) {
			// AuthenticationSchemes.Anonymous is the default, ignored.
			case AuthenticationSchemes.Basic:
				authType = "Basic";
				break;
			case AuthenticationSchemes.Digest:
				authType = "Digest";
				break;
			case AuthenticationSchemes.Ntlm:
				authType = "Ntlm";
				break;
			case AuthenticationSchemes.Negotiate:
				authType = "Negotiate";
				break;
			}
			if (authType != null) {
				var cred = source.ClientCredentials;
				string user = cred != null ? cred.UserName.UserName : null;
				string pwd = cred != null ? cred.UserName.Password : null;
				if (String.IsNullOrEmpty (user))
					throw new InvalidOperationException (String.Format ("Use ClientCredentials to specify a user name for required HTTP {0} authentication.", authType));
				var nc = new NetworkCredential (user, pwd);
				web_request.Credentials = nc;
				// FIXME: it is said required in SL4, but it blocks full WCF.
				//web_request.UseDefaultCredentials = false;
			}
#endif

#if !NET_2_1 // FIXME: implement this to not depend on Timeout property
			web_request.Timeout = (int) timeout.TotalMilliseconds;
#endif

			// There is no SOAP Action/To header when AddressingVersion is None.
			if (message.Version.Envelope.Equals (EnvelopeVersion.Soap11) ||
			    message.Version.Addressing.Equals (AddressingVersion.None)) {
				if (message.Headers.Action != null) {
					web_request.Headers ["SOAPAction"] = String.Concat ("\"", message.Headers.Action, "\"");
					message.Headers.RemoveAll ("Action", message.Version.Addressing.Namespace);
				}
			}

			// apply HttpRequestMessageProperty if exists.
			bool suppressEntityBody = false;
#if !NET_2_1
			string pname = HttpRequestMessageProperty.Name;
			if (message.Properties.ContainsKey (pname)) {
				HttpRequestMessageProperty hp = (HttpRequestMessageProperty) message.Properties [pname];
				web_request.Headers.Clear ();
				web_request.Headers.Add (hp.Headers);
				web_request.Method = hp.Method;
				// FIXME: do we have to handle hp.QueryString ?
				if (hp.SuppressEntityBody)
					suppressEntityBody = true;
			}
#endif

			if (!suppressEntityBody && String.Compare (web_request.Method, "GET", StringComparison.OrdinalIgnoreCase) != 0) {
				MemoryStream buffer = new MemoryStream ();
				Encoder.WriteMessage (message, buffer);

				if (buffer.Length > int.MaxValue)
					throw new InvalidOperationException ("The argument message is too large.");

#if !NET_2_1
				web_request.ContentLength = (int) buffer.Length;
#endif

				web_request.BeginGetRequestStream (delegate (IAsyncResult r) {
					try {
						result.CompletedSynchronously &= r.CompletedSynchronously;
						using (Stream s = web_request.EndGetRequestStream (r))
							s.Write (buffer.GetBuffer (), 0, (int) buffer.Length);
						web_request.BeginGetResponse (GotResponse, result);
					} catch (WebException ex) {
						switch (ex.Status) {
#if !NET_2_1
						case WebExceptionStatus.NameResolutionFailure:
#endif
						case WebExceptionStatus.ConnectFailure:
							result.Complete (new EndpointNotFoundException (new EndpointNotFoundException ().Message, ex));
							break;
						default:
							result.Complete (ex);
							break;
						}
					} catch (Exception ex) {
						result.Complete (ex);
					}
				}, null);
			} else {
				web_request.BeginGetResponse (GotResponse, result);
			}
		}