Below is my overridden GetWebRequest. If I remove lines marked with '1' and '2' below, I dont get any error. But since I want to compress data sent over the network, I uncomment these and I get error
"An existing connection was forcibly closed by the remote host."
protected override WebRequest GetWebRequest(Uri uri)
{
WebRequest req = base.GetWebRequest(uri);
byte[] credentialBuffer = new UTF8Encoding().GetBytes(Settings.Get("usr") + ":" + Settings.Get("pwd"));
req.Headers.Add("Accept-Encoding", "gzip, deflate"); //1
req.Headers["Authorization"] = "Basic " + Convert.ToBase64String(credentialBuffer);
if (req is HttpWebRequest)
{
(req as HttpWebRequest).AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate; //2
}
return req;
}
I noticed that I get this only if I am sending lots of data to client. Then I tried putting break-point in my GetWebResponse() and than waiting at the break-point for couple of minutes once response comes back and I was getting same error regardless of data
size being sent over network. So, this error seems to have something with timing rather than size of data.
Message:
An existing connection was forcibly closed by the remote host.
InnerException:
N/A
Stack Trace:
at System.Net.Sockets.Socket.ReceiveNoCheck(Byte[] buffer, Int32 index, Int32 request, SocketFlags socketFlags)
at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
at System.Net.Connection.Read(Byte[] buffer, Int32 offset, Int32 count)
at System.Net.HttpWebRequest.ConnectionClient.Read(Byte[] data, Int32 offset, Int32 length)
at System.Net.HttpReadStream.NetworkRead(Byte[] data, Int32 offset, Int32 length)
at System.Net.ContentLengthReadStream.doRead(Byte[] data, Int32 offset, Int32 length)
at System.Net.HttpReadStream.Read(Byte[] buffer, Int32 offset, Int32 length)
at System.IO.StreamReader.ReadBuffer(Char[] userBuffer, Int32 userOffset, Int32 desiredChars, Boolean& readToUserBuffer)
at System.IO.StreamReader.Read(Char[] buffer, Int32 index, Int32 count)
at System.Xml.XmlTextReaderImpl.ReadData()
at System.Xml.XmlTextReaderImpl.ParseAttributeValueSlow(Int32 curPos, Char quoteChar, NodeData attr)
at System.Xml.XmlTextReaderImpl.ParseAttributes()
at System.Xml.XmlTextReaderImpl.ParseElement()
at System.Xml.XmlTextReaderImpl.ParseElementContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlTextReader.Read()
at System.Xml.XmlReader.ReadEndElement()
at System.Xml.Serialization.XmlSerializationReader.DeserializePrimitiveElement(LogicalType deserializeAs, Accessor accessor, Fixup fixup, Object fixupTarget, String identifier, Boolean emptyValue, Boolean nullValue)
at System.Xml.Serialization.XmlSerializationReader.deserializeElement(Accessor accessor, Fixup fixup, Object fixupTarget)
at System.Xml.Serialization.XmlSerializationReader.DeserializeElementMember(MemberValueCollection members, Object fixupTarget, Hashtable internalState, Boolean& firstElement)
at System.Xml.Serialization.XmlSerializationReader.deserializeMembers(MemberValueCollection members, Object fixupTarget)
at System.Xml.Serialization.XmlSerializationReader.DeserializeComplexElement(LogicalType deserializeAs, Accessor accessor, Fixup fixup, Object fixupTarget, String identifier, Boolean emptyValue, Boolean nullValue)
at System.Xml.Serialization.XmlSerializationReader.deserializeElement(Accessor accessor, Fixup fixup, Object fixupTarget)
at System.Xml.Serialization.XmlSerializationReader.DeserializeElementMember(MemberValueCollection members, Object fixupTarget, Hashtable internalState, Boolean& firstElement)
at System.Xml.Serialization.XmlSerializationReader.deserializeMembers(MemberValueCollection members, Object fixupTarget)
at System.Web.Services.Protocols.SoapMessageParser.execute()
at System.Web.Services.Protocols.SoapMessageSerializer.Deserialize(XmlReader reader, SoapHttpClientProtocol client, LogicalSoapMethod soapMethod, Boolean soap12)
at System.Web.Services.Protocols.SoapHttpClientProtocol.doInvoke(String methodName, Object[] parameters, WebClientAsyncResult asyncResult)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at MyApp.MyWS.IMyService.Login(Int32 SessionID, String SecurityHash)
at MyApp.MainForm.loginButton_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.ButtonBase.WnProc(WM wm, Int32 wParam, Int32 lParam)
at System.Windows.Forms.Control._InternalWnProc(WM wm, Int32 wParam, Int32 lParam)
at Microsoft.AGL.Forms.EVL.EnterMainLoop(IntPtr hwnMain)
at System.Windows.Forms.Application.Run(Form fm)
at MyApp.MainForm.Main()
VS2008 Output tab will also show several of these
A first chance exception of type 'System.Net.Sockets.SocketException' occurred in System.dll
A first chance exception of type 'System.Net.Sockets.SocketException' occurred in System.dll
A first chance exception of type 'System.Net.Sockets.SocketException' occurred in System.dll
A first chance exception of type 'System.Net.Sockets.SocketException' occurred in System.dll
A first chance exception of type 'System.Net.Sockets.SocketException' occurred in System.dll
Much appreciated,
-- d.
