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POSocket: an existing connection was forcibly closed by remote host
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copied!<p>I am trying to implement HTTP+HTTPS+POP3+IMAP proxy server. As of now i have implemented HTTP and HTTPS proxy. But while trying to use HTTPS proxy, i Have the following exception: <code>an existing connection was forcibly closed by remote host</code></p> <p>Here's my code that handles socket from TCP listener:</p> <pre><code> static void PerformConnection(object o) { try { Socket receiver = o as Socket; if (receiver != null) { NetworkStream ns = new NetworkStream(socket: receiver); byte[] buffer = new byte[450000]; ns.Read(buffer, 0, Convert.ToInt32(450000)); string data = Encoding.UTF8.GetString(buffer); string line = data.Replace("\r\n", "\n").Split(new string[] {"\n"}, StringSplitOptions.None)[0]; if (line != "" && line != null) { Uri uri = new Uri("http://someforbiddenhost.org"); uri = new Uri(line.Split(new string[] {" "}, StringSplitOptions.None)[1]); if (uri.Host.Contains("shelesta.org")) { string Html = "<html><body><h1>It works!</h1></body></html>"; string response = "HTTP/1.1 200 OK\nContent-type: text/html\nContent-Length:" + Html.Length.ToString() + "\n\n" + Html; receiver.Send(Encoding.UTF8.GetBytes(response)); } else { if (line.StartsWith("CONNECT")) { string host = uri.ToString().Substring(0, uri.ToString().IndexOf(':')); TcpClient clDestination = new TcpClient(); clDestination.Connect(host, 443); SslStream sslStream = new SslStream(clDestination.GetStream()); sslStream.AuthenticateAsClient(host); byte[] request = Encoding.UTF8.GetBytes(String.Format("GET https://{0}:443/ HTTP/1.1\r\nHost: {0}\r\n\r\n", host)); sslStream.Write(request, 0, request.Length); sslStream.Flush(); int bytes = 10; receiver.ReceiveTimeout = 6000000; do { bytes = sslStream.Read(buffer, 0, buffer.Length); Console.Write(Encoding.UTF8.GetString(buffer, 0, bytes)); receiver.Send(buffer,buffer.Length,SocketFlags.Partial);// HERE EXCEPTION RAISES } while (bytes != 0); } else { IPHostEntry rh = Dns.GetHostEntry(uri.Host); Socket webserver = new Socket(rh.AddressList[0].AddressFamily, SocketType.Stream, ProtocolType.IP); webserver.Connect(new IPEndPoint(rh.AddressList[0], 80)); byte[] databytes = Encoding.ASCII.GetBytes(data); webserver.Send(databytes, databytes.Length, SocketFlags.None); byte[] ReceiverBuffer = new byte[2000048]; webserver.Receive(ReceiverBuffer); receiver.Send(ReceiverBuffer); } } } } } catch { } } </code></pre> <p>And sorry about code formatting, I can't see SO WYSIWYG editor, just message: Stack Overflow requires external JavaScript from another domain, which is blocked or failed to load.</p>

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