private static void HandleHttpSessionRequest(TcpClient client, string httpCmd, Stream clientStream,
CustomBinaryReader clientStreamReader, StreamWriter clientStreamWriter, bool IsHttps)
{
TcpConnection connection = null;
string lastRequestHostName = null;
while (true)
{
if (string.IsNullOrEmpty(httpCmd))
{
Dispose(client, clientStream, clientStreamReader, clientStreamWriter, null);
break;
}
var args = new SessionEventArgs();
args.Client.TcpClient = client;
try
{
//break up the line into three components (method, remote URL & Http Version)
var httpCmdSplit = httpCmd.Split(SpaceSplit, 3);
var httpMethod = httpCmdSplit[0];
var httpVersion = httpCmdSplit[2];
Version version;
if (httpVersion == "HTTP/1.1")
{
version = new Version(1, 1);
}
else
{
version = new Version(1, 0);
}
args.ProxySession.Request.RequestHeaders = new List <HttpHeader>();
string tmpLine;
while (!string.IsNullOrEmpty(tmpLine = clientStreamReader.ReadLine()))
{
var header = tmpLine.Split(new char[] { ':' }, 2);
args.ProxySession.Request.RequestHeaders.Add(new HttpHeader(header[0], header[1]));
}
var httpRemoteUri = new Uri(!IsHttps ? httpCmdSplit[1] : (string.Concat("https://", args.ProxySession.Request.Host, httpCmdSplit[1])));
args.IsHttps = IsHttps;
args.ProxySession.Request.RequestUri = httpRemoteUri;
args.ProxySession.Request.Method = httpMethod;
args.ProxySession.Request.HttpVersion = httpVersion;
args.Client.ClientStream = clientStream;
args.Client.ClientStreamReader = clientStreamReader;
args.Client.ClientStreamWriter = clientStreamWriter;
//If requested interception
if (BeforeRequest != null)
{
BeforeRequest(null, args);
}
args.ProxySession.Request.RequestLocked = true;
if (args.ProxySession.Request.CancelRequest)
{
Dispose(client, clientStream, clientStreamReader, clientStreamWriter, args);
break;
}
if (args.ProxySession.Request.UpgradeToWebSocket)
{
TcpHelper.SendRaw(clientStream, httpCmd, args.ProxySession.Request.RequestHeaders,
httpRemoteUri.Host, httpRemoteUri.Port, args.IsHttps);
Dispose(client, clientStream, clientStreamReader, clientStreamWriter, args);
return;
}
PrepareRequestHeaders(args.ProxySession.Request.RequestHeaders, args.ProxySession);
//construct the web request that we are going to issue on behalf of the client.
connection = connection == null?
TcpConnectionManager.GetClient(args.ProxySession.Request.RequestUri.Host, args.ProxySession.Request.RequestUri.Port, args.IsHttps)
: lastRequestHostName != args.ProxySession.Request.RequestUri.Host ? TcpConnectionManager.GetClient(args.ProxySession.Request.RequestUri.Host, args.ProxySession.Request.RequestUri.Port, args.IsHttps)
: connection;
lastRequestHostName = args.ProxySession.Request.RequestUri.Host;
args.ProxySession.Request.Host = args.ProxySession.Request.RequestUri.Host;
args.ProxySession.SetConnection(connection);
args.ProxySession.SendRequest();
//If request was modified by user
if (args.ProxySession.Request.RequestBodyRead)
{
args.ProxySession.Request.ContentLength = args.ProxySession.Request.RequestBody.Length;
var newStream = args.ProxySession.ProxyClient.ServerStreamReader.BaseStream;
newStream.Write(args.ProxySession.Request.RequestBody, 0, args.ProxySession.Request.RequestBody.Length);
}
else
{
//If its a post/put request, then read the client html body and send it to server
if (httpMethod.ToUpper() == "POST" || httpMethod.ToUpper() == "PUT")
{
SendClientRequestBody(args);
}
}
HandleHttpSessionResponse(args);
//if connection is closing exit
if (args.ProxySession.Response.ResponseKeepAlive == false)
{
connection.TcpClient.Close();
Dispose(client, clientStream, clientStreamReader, clientStreamWriter, args);
return;
}
// read the next request
httpCmd = clientStreamReader.ReadLine();
}
catch
{
Dispose(client, clientStream, clientStreamReader, clientStreamWriter, args);
break;
}
}
if (connection != null)
{
TcpConnectionManager.ReleaseClient(connection);
}
}
