Question

I need to create a request for a web page delivered to our web sites, but I need to be able to set the host header information too. I have tried this using HttpWebRequest, but the Header information is read only (Or at least the Host part of it is). I need to do this because we want to perform the initial request for a page before the user can. We have 10 web server which are load balanced, so we need to request the file from each of the web servers.

I have tried the following:

HttpWebRequest request = (HttpWebRequest)WebRequest.Create('http://192.168.1.5/filename.htm'); request.Headers.Set('Host', 'www.mywebsite.com'); WebResponse response = request.GetResponse(); 

Obviously this does not work, as I can’t update the header, and I don’t know if this is indeed the right way to do it.

Answer 1

I have managed to find out a more long winded route by using sockets. I found the answer in the MSDN page for IPEndPoint:

string getString = 'GET /path/mypage.htm HTTP/1.1\r\nHost: www.mysite.mobi\r\nConnection: Close\r\n\r\n'; Encoding ASCII = Encoding.ASCII; Byte[] byteGetString = ASCII.GetBytes(getString); Byte[] receiveByte = new Byte[256]; Socket socket = null; String strPage = null; try {     IPEndPoint ip = new IPEndPoint(IPAddress.Parse('10.23.1.93'), 80);     socket = new Socket(ip.AddressFamily, SocketType.Stream, ProtocolType.Tcp);     socket.Connect(ip); } catch (SocketException ex) {     Console.WriteLine('Source:' + ex.Source);     Console.WriteLine('Message:' + ex.Message); } socket.Send(byteGetString, byteGetString.Length, 0); Int32 bytes = socket.Receive(receiveByte, receiveByte.Length, 0); strPage = strPage + ASCII.GetString(receiveByte, 0, bytes);  while (bytes > 0) {     bytes = socket.Receive(receiveByte, receiveByte.Length, 0);     strPage = strPage + ASCII.GetString(receiveByte, 0, bytes); } socket.Close();