private static void DoHttps(TcpClient incomingClient, TcpClient sendClient, TcpClient receiveClient)
{
Config.Server server = Config.GetServer();
NetworkStream incomingStream = incomingClient.GetStream();
sendClient.Connect(server.Host, server.Port);
NetworkStream sendStream = sendClient.GetStream();
receiveClient.Connect(server.Host, server.Port);
NetworkStream receiveStream = receiveClient.GetStream();
byte[] buffer = new byte[4096];
List <byte> header = new List <byte>();
int headerEndIndex = -1;
int receiveNumber;
while (true)
{
receiveNumber = incomingStream.Read(buffer, 0, buffer.Length);
if (receiveNumber == 0)
{
throw new Exception();
}
header.AddRange(buffer.Take(receiveNumber));
headerEndIndex = Helper.FindIndex(header, header.Count, Helper.headerBound);
if (headerEndIndex == -1)
{
continue;
}
else
{
break;
}
}
string firstLine = Encoding.ASCII.GetString(header.GetRange(0, header.IndexOf(0x0D)).ToArray());
string httpsHost = firstLine.Split(' ')[1];
byte[] connectionRequest = Encoding.ASCII.GetBytes(string.Format(server.ConnectRequestTemp, httpsHost));
sendStream.Write(connectionRequest, 0, connectionRequest.Length);
long key = 0;
header.Clear();
headerEndIndex = -1;
while (true)
{
receiveNumber = sendStream.Read(buffer, 0, buffer.Length);
if (receiveNumber == 0)
{
throw new Exception();
}
header.AddRange(buffer.Take(receiveNumber));
headerEndIndex = Helper.FindIndex(header, header.Count, Helper.headerBound);
if (headerEndIndex == -1)
{
continue;
}
else
{
int eTagIndex = Helper.FindIndex(header, headerEndIndex, Encoding.ASCII.GetBytes("\r\nETag:"));
if (eTagIndex == -1)
{
throw new Exception();
}
eTagIndex = eTagIndex + 7;
key = long.Parse(Encoding.ASCII.GetString(header.GetRange(eTagIndex, header.IndexOf(0x0D, eTagIndex) - eTagIndex).ToArray()));
break;
}
}
byte[] connectConfirm = Encoding.ASCII.GetBytes("HTTP/1.1 200 Connection Established\r\n\r\n");
incomingStream.Write(connectConfirm, 0, connectConfirm.Length);
Task.Run(async() =>
{
try
{
byte[] readBuffer = new byte[4096];
int upReceiveNumber;
List <byte> upHeader = new List <byte>();
while (true)
{
upReceiveNumber = await incomingStream.ReadAsync(readBuffer, 0, readBuffer.Length);
if (upReceiveNumber == 0)
{
throw new Exception();
}
byte[] request = Encoding.ASCII.GetBytes(string.Format(server.SendRequestTemp, key, upReceiveNumber)).Concat(readBuffer.Take(upReceiveNumber)).ToArray();
sendStream.Write(request, 0, request.Length);
ClearResponse(sendStream);
}
}
catch
{
//Disconnect(sendStream, key);
incomingClient.Close();
sendClient.Close();
receiveClient.Close();
}
});
Task.Run(async() =>
{
try
{
byte[] request = Encoding.ASCII.GetBytes(string.Format(server.ReceiveRequestTemp, key));
receiveStream.Write(request, 0, request.Length);
header.Clear();
headerEndIndex = -1;
int?chunkeLength = null;
List <byte> chunke = new List <byte>();
bool zeroChunke = false;
while (true)
{
byte[] readBuffer = buffer;
receiveNumber = await receiveStream.ReadAsync(readBuffer, 0, readBuffer.Length);
if (receiveNumber == 0)
{
throw new Exception();
}
if (headerEndIndex == -1)
{
header.AddRange(readBuffer.Take(receiveNumber));
headerEndIndex = Helper.FindIndex(header, header.Count, Helper.headerBound);
if (headerEndIndex == -1)
{
continue;
}
else
{
receiveNumber = header.Count - headerEndIndex - 4;
readBuffer = header.GetRange(headerEndIndex + 4, receiveNumber).ToArray();
}
}
for (int i = 0; i < receiveNumber; i++)
{
chunke.Add(readBuffer[i]);
if (chunkeLength == null)
{
if (readBuffer[i] == 0x0D)
{
chunkeLength = Convert.ToInt32(Encoding.ASCII.GetString(chunke.GetRange(0, chunke.Count - 1).ToArray()), 16);
if (chunkeLength == 0)
{
zeroChunke = true;
break;
}
}
else
{
continue;
}
}
else
{
if (chunke.Count == chunke.IndexOf(0x0D) + 2 + chunkeLength + 2)
{
byte[] chunkeContent = chunke.GetRange(chunke.IndexOf(0x0D) + 2, chunkeLength.Value).ToArray();
incomingStream.Write(chunkeContent, 0, chunkeContent.Length);
chunkeLength = null;
chunke.Clear();
}
}
}
if (zeroChunke == true)
{
throw new Exception();
}
}
}
catch
{
incomingClient.Close();
sendClient.Close();
receiveClient.Close();
}
});
}
private static void Disconnect(TcpClient sendClient, long key, Config.Server server)
{
byte[] request = Encoding.ASCII.GetBytes(string.Format(server.DisconnectRequestTemp, key));
sendClient.GetStream().Write(request, 0, request.Length);
}
private static void DoHttp(TcpClient incomingClient, TcpClient outgoingClient)
{
Config.Server server = Config.GetServer();
NetworkStream incomingStream = incomingClient.GetStream();
outgoingClient.Connect(server.Host, server.Port);
NetworkStream outgoingStream = outgoingClient.GetStream();
byte[] buffer = new byte[4096];
List <byte> header = new List <byte>();
int headerEndIndex = -1;
int receiveNumber;
int contentLength = 0;
int sentLength = 0;
bool chunked = false;
int? chunkeLength = null;
List <byte> chunke = new List <byte>();
bool zeroChunke = false;
while (true)
{
byte[] readBuffer = buffer;
receiveNumber = incomingStream.Read(readBuffer, 0, readBuffer.Length);
if (receiveNumber == 0)
{
throw new Exception();
}
if (headerEndIndex == -1)
{
header.AddRange(readBuffer.Take(receiveNumber));
headerEndIndex = Helper.FindIndex(header, header.Count, Helper.headerBound);
if (headerEndIndex == -1)
{
continue;
}
else
{
string firstLine = Encoding.ASCII.GetString(header.GetRange(0, header.IndexOf(0x0D)).ToArray());
string[] part = firstLine.Split(' ');
string url = part[1];
Uri uri = new Uri(url);
string httpHost = uri.Authority;
int contentLengthIndex = Helper.FindIndex(header, headerEndIndex, Encoding.ASCII.GetBytes("Content-Length:"));
if (contentLengthIndex != -1)
{
int indexBegin = header.IndexOf(0x3A, contentLengthIndex) + 1;
int indexEnd = header.IndexOf(0x0D, contentLengthIndex);
byte[] lengthBytes = header.GetRange(indexBegin, indexEnd - indexBegin).ToArray();
contentLength = int.Parse(Encoding.ASCII.GetString(lengthBytes));
}
else
{
if (Helper.FindIndex(header, headerEndIndex, Encoding.ASCII.GetBytes("Transfer-Encoding: chunked")) != -1)
{
chunked = true;
}
else
{
contentLength = 0;
}
}
//string newFirstLine = part[0] + " " + uri.PathAndQuery + " " + part[2];
//List<byte> realHeaderList = Encoding.ASCII.GetBytes(newFirstLine).Concat(header.Take(headerEndIndex + 4).Skip(header.IndexOf(0x0D))).ToList();
//int connectionIndex = Helper.FindIndex(realHeaderList, realHeaderList.Count, Encoding.ASCII.GetBytes("\r\nProxy-Connection"));
//if(connectionIndex != -1)
//{
// realHeaderList.RemoveRange(connectionIndex + 2, 6);
//}
//byte[] realHeader = realHeaderList.ToArray();
string newFirstLine = part[0] + " " + uri.PathAndQuery + " " + part[2];
byte[] realHeader = Encoding.ASCII.GetBytes(newFirstLine).Concat(header.Take(headerEndIndex + 4).Skip(header.IndexOf(0x0D))).ToArray();
byte[] request = Encoding.ASCII.GetBytes(string.Format(server.SendThenReceiveRequestTemp, httpHost)).Concat(Helper.GetChunk(realHeader)).ToArray();
outgoingStream.Write(request, 0, request.Length);
receiveNumber = header.Count - headerEndIndex - 4;
readBuffer = header.GetRange(headerEndIndex + 4, receiveNumber).ToArray();
}
}
if (chunked == false)
{
if (receiveNumber > 0)
{
byte[] request = Helper.GetChunk(readBuffer.Take(receiveNumber).ToArray());
outgoingStream.Write(request, 0, request.Length);
}
sentLength = sentLength + receiveNumber;
if (sentLength >= contentLength)
{
break;
}
}
else
{
for (int i = 0; i < receiveNumber; i++)
{
chunke.Add(readBuffer[i]);
if (chunkeLength == null)
{
if (readBuffer[i] == 0x0D)
{
chunkeLength = Convert.ToInt32(Encoding.ASCII.GetString(chunke.GetRange(0, chunke.Count - 1).ToArray()), 16);
if (chunkeLength == 0)
{
zeroChunke = true;
break;
}
}
else
{
continue;
}
}
else
{
if (chunke.Count == chunke.IndexOf(0x0D) + 2 + chunkeLength + 2)
{
byte[] request = Helper.GetChunk(chunke.ToArray());
outgoingStream.Write(request, 0, request.Length);
chunkeLength = null;
chunke.Clear();
}
}
}
if (zeroChunke == true)
{
byte[] request = Helper.GetChunk(Helper.zeroChunk);
outgoingStream.Write(request, 0, request.Length);
break;
}
}
}
outgoingStream.Write(Helper.zeroChunk, 0, Helper.zeroChunk.Length);
header.Clear();
headerEndIndex = -1;
chunkeLength = null;
chunke.Clear();
zeroChunke = false;
while (true)
{
byte[] readBuffer = buffer;
receiveNumber = outgoingStream.Read(readBuffer, 0, readBuffer.Length);
if (receiveNumber == 0)
{
throw new Exception();
}
if (headerEndIndex == -1)
{
header.AddRange(readBuffer.Take(receiveNumber));
headerEndIndex = Helper.FindIndex(header, header.Count, Helper.headerBound);
if (headerEndIndex == -1)
{
continue;
}
else
{
receiveNumber = header.Count - headerEndIndex - 4;
readBuffer = header.GetRange(headerEndIndex + 4, receiveNumber).ToArray();
}
}
for (int i = 0; i < receiveNumber; i++)
{
chunke.Add(readBuffer[i]);
if (chunkeLength == null)
{
if (readBuffer[i] == 0x0D)
{
chunkeLength = Convert.ToInt32(Encoding.ASCII.GetString(chunke.GetRange(0, chunke.Count - 1).ToArray()), 16);
if (chunkeLength == 0)
{
zeroChunke = true;
break;
}
}
else
{
continue;
}
}
else
{
if (chunke.Count == chunke.IndexOf(0x0D) + 2 + chunkeLength + 2)
{
byte[] chunkeContent = chunke.GetRange(chunke.IndexOf(0x0D) + 2, chunkeLength.Value).ToArray();
incomingStream.Write(chunkeContent, 0, chunkeContent.Length);
chunkeLength = null;
chunke.Clear();
}
}
}
if (zeroChunke == true)
{
break;
}
}
}