예제 #1
0
        void GotResponse(IAsyncResult result)
        {
            HttpChannelRequestAsyncResult channelResult = (HttpChannelRequestAsyncResult)result.AsyncState;

            channelResult.CompletedSynchronously &= result.CompletedSynchronously;

            WebResponse res;
            Stream      resstr;

            try {
                res    = web_request.EndGetResponse(result);
                resstr = res.GetResponseStream();
            } catch (WebException we) {
                res = we.Response;
                try {
                    // The response might contain SOAP fault. It might not.
                    resstr = res.GetResponseStream();
                } catch (WebException we2) {
                    channelResult.Complete(we2);
                    return;
                }
            }

            try {
                using (var responseStream = resstr) {
                    MemoryStream ms = new MemoryStream();
                    byte []      b  = new byte [65536];
                    int          n  = 0;

                    while (true)
                    {
                        n = responseStream.Read(b, 0, 65536);
                        if (n == 0)
                        {
                            break;
                        }
                        ms.Write(b, 0, n);
                    }
                    ms.Seek(0, SeekOrigin.Begin);

                    channelResult.Response = Encoder.ReadMessage(
                        //responseStream, MaxSizeOfHeaders);
                        ms, MaxSizeOfHeaders, res.ContentType);

/*
 * MessageBuffer buf = ret.CreateBufferedCopy (0x10000);
 * ret = buf.CreateMessage ();
 * System.Xml.XmlTextWriter w = new System.Xml.XmlTextWriter (Console.Out);
 * w.Formatting = System.Xml.Formatting.Indented;
 * buf.CreateMessage ().WriteMessage (w);
 * w.Close ();
 */
                    channelResult.Complete();
                }
            } catch (Exception ex) {
                channelResult.Complete(ex);
            } finally {
                res.Close();
            }
        }
예제 #2
0
        public override IAsyncResult BeginRequest(Message message, TimeSpan timeout, AsyncCallback callback, object state)
        {
            ThrowIfDisposedOrNotOpen();
            HttpChannelRequestAsyncResult result = new HttpChannelRequestAsyncResult(message, timeout, this, callback, state);

            BeginProcessRequest(result);
            return(result);
        }
예제 #3
0
        public override Message EndRequest(IAsyncResult result)
        {
            if (result == null)
            {
                throw new ArgumentNullException("result");
            }
            HttpChannelRequestAsyncResult r = result as HttpChannelRequestAsyncResult;

            if (r == null)
            {
                throw new InvalidOperationException("Wrong IAsyncResult");
            }
            r.WaitEnd();
            return(r.Response);
        }
예제 #4
0
        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;
            string pname            = HttpRequestMessageProperty.Name;
            if (message.Properties.ContainsKey(pname))
            {
                HttpRequestMessageProperty hp = (HttpRequestMessageProperty)message.Properties [pname];
#if !NET_2_1 // FIXME: how can this be done?
                foreach (var key in hp.Headers.AllKeys)
                {
                    if (!WebHeaderCollection.IsRestricted(key))
                    {
                        web_request.Headers [key] = hp.Headers [key];
                    }
                }
#endif
                web_request.Method = hp.Method;
                // FIXME: do we have to handle hp.QueryString ?
                if (hp.SuppressEntityBody)
                {
                    suppressEntityBody = true;
                }
            }
#if !NET_2_1
            if (source.ClientCredentials.ClientCertificate.Certificate != null)
            {
                ((HttpWebRequest)web_request).ClientCertificates.Add(source.ClientCredentials.ClientCertificate.Certificate);
            }
#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);
            }
        }
예제 #5
0
        void GotResponse(IAsyncResult result)
        {
            HttpChannelRequestAsyncResult channelResult = (HttpChannelRequestAsyncResult)result.AsyncState;

            channelResult.CompletedSynchronously &= result.CompletedSynchronously;

            WebResponse res;
            Stream      resstr;

            try
            {
                res    = channelResult.WebRequest.EndGetResponse(result);
                resstr = res.GetResponseStream();
            }
            catch (WebException we)
            {
                res = we.Response;
                if (res == null)
                {
                    channelResult.Complete(we);
                    return;
                }


                var hrr2 = (HttpWebResponse)res;

                if ((int)hrr2.StatusCode >= 400 && (int)hrr2.StatusCode < 500)
                {
                    Exception exception = new WebException(
                        String.Format("There was an error on processing web request: Status code {0}({1}): {2}",
                                      (int)hrr2.StatusCode, hrr2.StatusCode, hrr2.StatusDescription), null,
                        WebExceptionStatus.ProtocolError, hrr2);

                    if ((int)hrr2.StatusCode == 404)
                    {
                        // Throw the same exception .NET does
                        exception = new EndpointNotFoundException(
                            "There was no endpoint listening at {0} that could accept the message. This is often caused by an incorrect address " +
                            "or SOAP action. See InnerException, if present, for more details.",
                            exception);
                    }

                    channelResult.Complete(exception);
                    return;
                }


                try
                {
                    // The response might contain SOAP fault. It might not.
                    resstr = res.GetResponseStream();
                }
                catch (WebException we2)
                {
                    channelResult.Complete(we2);
                    return;
                }
            }

            var hrr = (HttpWebResponse)res;

            if ((int)hrr.StatusCode >= 400 && (int)hrr.StatusCode < 500)
            {
                channelResult.Complete(new WebException(String.Format("There was an error on processing web request: Status code {0}({1}): {2}", (int)hrr.StatusCode, hrr.StatusCode, hrr.StatusDescription)));
            }

            try
            {
                Message ret;

                // TODO: unit test to make sure an empty response never throws
                // an exception at this level
                if (hrr.ContentLength == 0)
                {
                    ret = Message.CreateMessage(Encoder.MessageVersion, String.Empty);
                }
                else
                {
                    using (var responseStream = resstr)
                    {
                        MemoryStream ms = new MemoryStream();
                        byte []      b  = new byte [65536];
                        int          n  = 0;

                        while (true)
                        {
                            n = responseStream.Read(b, 0, 65536);
                            if (n == 0)
                            {
                                break;
                            }
                            ms.Write(b, 0, n);
                        }
                        ms.Seek(0, SeekOrigin.Begin);

                        ret = Encoder.ReadMessage(
                            ms, (int)source.Transport.MaxReceivedMessageSize, res.ContentType);
                    }
                }

                var rp = new HttpResponseMessageProperty()
                {
                    StatusCode = hrr.StatusCode, StatusDescription = hrr.StatusDescription
                };
#if MOONLIGHT
                if (hrr.SupportsHeaders)
                {
                    foreach (string key in hrr.Headers)
                    {
                        rp.Headers [key] = hrr.Headers [key];
                    }
                }
#else
                foreach (var key in hrr.Headers.AllKeys)
                {
                    rp.Headers [key] = hrr.Headers [key];
                }
#endif
                ret.Properties.Add(HttpResponseMessageProperty.Name, rp);

                channelResult.Response = ret;
                channelResult.Complete();
            }
            catch (Exception ex)
            {
                channelResult.Complete(ex);
            }
            finally
            {
                res.Close();
            }
        }
예제 #6
0
		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);
			}
		}
예제 #7
0
		public override IAsyncResult BeginRequest (Message message, TimeSpan timeout, AsyncCallback callback, object state)
		{
			ThrowIfDisposedOrNotOpen ();

			HttpChannelRequestAsyncResult result = new HttpChannelRequestAsyncResult (message, timeout, this, callback, state);
			BeginProcessRequest (result);
			return result;
		}
예제 #8
0
        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.Source.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;
                }
            }

            web_request             = HttpWebRequest.Create(destination);
            web_request.Method      = "POST";
            web_request.ContentType = Encoder.ContentType;

#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.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 (Exception ex) {
                        result.Complete(ex);
                    }
                }, null);
            }
            else
            {
                web_request.BeginGetResponse(GotResponse, result);
            }
        }
예제 #9
0
        /// <summary>
        /// Inicia o processamento da requisição.
        /// </summary>
        /// <param name="result">Resultado assincrono.</param>
        void BeginProcessRequest(HttpChannelRequestAsyncResult result)
        {
            Message  message     = result.Message;
            TimeSpan timeout     = result.Timeout;
            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)HttpWebRequest.Create(destination);

            web_requests.Add(web_request);
            result.WebRequest       = web_request;
            web_request.Method      = "POST";
            web_request.ContentType = Encoder.ContentType;
            HttpWebRequest hwr  = (web_request as HttpWebRequest);
            var            cmgr = source.GetProperty <IHttpCookieContainerManager>();

            if (cmgr != null)
            {
                hwr.CookieContainer = cmgr.CookieContainer;
            }
            var    httpbe   = (HttpTransportBindingElement)source.Transport;
            string authType = null;

            switch (httpbe.AuthenticationScheme)
            {
            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;
            }
            web_request.Timeout = (int)timeout.TotalMilliseconds;
            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, "\"");
                }
            }
            bool   suppressEntityBody = false;
            string pname = HttpRequestMessageProperty.Name;

            if (message.Properties.ContainsKey(pname))
            {
                HttpRequestMessageProperty hp = (HttpRequestMessageProperty)message.Properties[pname];
                foreach (var key in hp.Headers.AllKeys)
                {
                    if (WebHeaderCollection.IsRestricted(key))
                    {
                        switch (key)
                        {
                        case "Accept":
                            web_request.Accept = hp.Headers[key];
                            break;

                        case "Connection":
                            web_request.Connection = hp.Headers[key];
                            break;

                        case "ContentType":
                            web_request.ContentType = hp.Headers[key];
                            break;

                        case "Expect":
                            web_request.Expect = hp.Headers[key];
                            break;

                        case "Host":
                            web_request.Host = hp.Headers[key];
                            break;

                        case "Referer":
                            web_request.Referer = hp.Headers[key];
                            break;

                        case "Transfer-Encoding":
                            web_request.TransferEncoding = hp.Headers[key];
                            break;

                        case "User-Agent":
                            web_request.UserAgent = hp.Headers[key];
                            break;
                        }
                    }
                    else
                    {
                        web_request.Headers[key] = hp.Headers[key];
                    }
                }
                web_request.Method = hp.Method;
                if (hp.SuppressEntityBody)
                {
                    suppressEntityBody = true;
                }
            }
                        #if !NET_2_1
            if (source.ClientCredentials != null)
            {
                var cred = source.ClientCredentials;
                if ((cred.ClientCertificate != null) && (cred.ClientCertificate.Certificate != null))
                {
                    ((HttpWebRequest)web_request).ClientCertificates.Add(cred.ClientCertificate.Certificate);
                }
            }
                        #endif
            if (!suppressEntityBody && String.Compare(web_request.Method, "GET", StringComparison.OrdinalIgnoreCase) != 0)
            {
                var buffer = new System.IO.MemoryStream();
                Encoder.WriteMessage(message, buffer);
                if (buffer.Length > int.MaxValue)
                {
                    throw new InvalidOperationException("The argument message is too large.");
                }
                web_request.ContentLength = (int)buffer.Length;
                var getRequestStreamCallback = new AsyncCallback(r => {
                    try
                    {
                        result.CompletedSynchronously &= r.CompletedSynchronously;
                        using (var s = web_request.EndGetRequestStream(r))
                            s.Write(buffer.GetBuffer(), 0, (int)buffer.Length);
                        web_request.BeginGetResponse(GotResponse, result);
                    }
                    catch (WebException ex)
                    {
                        switch (ex.Status)
                        {
                        case WebExceptionStatus.NameResolutionFailure:
                        case WebExceptionStatus.ConnectFailure:
                            result.Complete(new EndpointNotFoundException(new EndpointNotFoundException().Message, ex));
                            break;

                        default:
                            result.Complete(ex);
                            break;
                        }
                    }
                    catch (Exception ex)
                    {
                        result.Complete(ex);
                    }
                });
                if (Colosoft.Runtime.PlatformHelper.IsRunningOnMono)
                {
                    Colosoft.Net.Mono.HttpWebRequestExtensions.BeginGetRequestStream(web_request, getRequestStreamCallback, null);
                }
                else
                {
                    web_request.BeginGetRequestStream(getRequestStreamCallback, null);
                }
            }
            else
            {
                web_request.BeginGetResponse(GotResponse, result);
            }
        }