public async Task<bool> HandshakeConnection(NetworkStream ClientStream)
{
StreamReader Reader = new StreamReader(ClientStream);
StreamWriter Writer = new StreamWriter(ClientStream);
TCPGetRequestHeader RequestHeader = new TCPGetRequestHeader();
string message = await Reader.ReadLineAsync();
while (message != Terminal)
{
this.ParseHeader(message, ref RequestHeader);
message = await Reader.ReadLineAsync();
}
string accept = this.AcceptKey(RequestHeader.SocketKey);
Writer.Write("HTTP/1.1 101 Switching Protocols\r\n");
Writer.Write("Upgrade: websocket\r\n");
Writer.Write("Connection: Upgrade\r\n");
Writer.Write("Sec-WebSocket-Accept: " + accept + "\r\n");
Writer.Write("\r\n");
Writer.Flush();
return true;
}
public async Task <bool> HandshakeConnection(NetworkStream ClientStream)
{
StreamReader Reader = new StreamReader(ClientStream);
StreamWriter Writer = new StreamWriter(ClientStream);
TCPGetRequestHeader RequestHeader = new TCPGetRequestHeader();
string message = await Reader.ReadLineAsync();
while (message != Terminal)
{
this.ParseHeader(message, ref RequestHeader);
message = await Reader.ReadLineAsync();
}
string accept = this.AcceptKey(RequestHeader.SocketKey);
Writer.Write("HTTP/1.1 101 Switching Protocols\r\n");
Writer.Write("Upgrade: websocket\r\n");
Writer.Write("Connection: Upgrade\r\n");
Writer.Write("Sec-WebSocket-Accept: " + accept + "\r\n");
Writer.Write("\r\n");
Writer.Flush();
return(true);
}
private void ParseHeader(string Header, ref TCPGetRequestHeader RequestHeader)
{
int length;
length = 3;
if (Header.Length > length && Header.Substring(0, length) == "GET")
RequestHeader.Method = Header;
length = 7;
if (Header.Length > length && Header.Substring(0, length) == "Upgrade")
RequestHeader.Upgrade = Header.Substring(length + 2, Header.Length - (length + 2));
length = 10;
if (Header.Length > length && Header.Substring(0, length) == "Connection")
RequestHeader.Connection = Header.Substring(length + 2, Header.Length - (length + 2));
length = 4;
if (Header.Length > length && Header.Substring(0, length) == "Host")
RequestHeader.Host = Header.Substring(length + 2, Header.Length - (length + 2));
length = 6;
if (Header.Length > length && Header.Substring(0, length) == "Origin")
RequestHeader.Origin = Header.Substring(length + 2, Header.Length - (length + 2));
length = 10;
if (Header.Length > length && Header.Substring(0, length) == "User-Agent")
RequestHeader.UserAgent = Header.Substring(length + 2, Header.Length - (length + 2));
length = 6;
if (Header.Length > length && Header.Substring(0, length) == "Pragma")
RequestHeader.Pragma = Header.Substring(length + 2, Header.Length - (length + 2));
length = 13;
if (Header.Length > length && Header.Substring(0, length) == "Cache-Control")
RequestHeader.CacheControl = Header.Substring(length + 2, Header.Length - (length + 2));
length = 17;
if (Header.Length > length && Header.Substring(0, length) == "Sec-WebSocket-Key")
RequestHeader.SocketKey = Header.Substring(length + 2, Header.Length - (length + 2));
length = 21;
if (Header.Length > length && Header.Substring(0, length) == "Sec-WebSocket-Version")
RequestHeader.SocketVersion = Header.Substring(length + 2, Header.Length - (length + 2));
length = 24;
if (Header.Length > length && Header.Substring(0, length) == "Sec-WebSocket-Extensions")
RequestHeader.SocketExtensions = Header.Substring(length + 2, Header.Length - (length + 2));
}
private void ParseHeader(string Header, ref TCPGetRequestHeader RequestHeader)
{
int length;
length = 3;
if (Header.Length > length && Header.Substring(0, length) == "GET")
{
RequestHeader.Method = Header;
}
length = 7;
if (Header.Length > length && Header.Substring(0, length) == "Upgrade")
{
RequestHeader.Upgrade = Header.Substring(length + 2, Header.Length - (length + 2));
}
length = 10;
if (Header.Length > length && Header.Substring(0, length) == "Connection")
{
RequestHeader.Connection = Header.Substring(length + 2, Header.Length - (length + 2));
}
length = 4;
if (Header.Length > length && Header.Substring(0, length) == "Host")
{
RequestHeader.Host = Header.Substring(length + 2, Header.Length - (length + 2));
}
length = 6;
if (Header.Length > length && Header.Substring(0, length) == "Origin")
{
RequestHeader.Origin = Header.Substring(length + 2, Header.Length - (length + 2));
}
length = 10;
if (Header.Length > length && Header.Substring(0, length) == "User-Agent")
{
RequestHeader.UserAgent = Header.Substring(length + 2, Header.Length - (length + 2));
}
length = 6;
if (Header.Length > length && Header.Substring(0, length) == "Pragma")
{
RequestHeader.Pragma = Header.Substring(length + 2, Header.Length - (length + 2));
}
length = 13;
if (Header.Length > length && Header.Substring(0, length) == "Cache-Control")
{
RequestHeader.CacheControl = Header.Substring(length + 2, Header.Length - (length + 2));
}
length = 17;
if (Header.Length > length && Header.Substring(0, length) == "Sec-WebSocket-Key")
{
RequestHeader.SocketKey = Header.Substring(length + 2, Header.Length - (length + 2));
}
length = 21;
if (Header.Length > length && Header.Substring(0, length) == "Sec-WebSocket-Version")
{
RequestHeader.SocketVersion = Header.Substring(length + 2, Header.Length - (length + 2));
}
length = 24;
if (Header.Length > length && Header.Substring(0, length) == "Sec-WebSocket-Extensions")
{
RequestHeader.SocketExtensions = Header.Substring(length + 2, Header.Length - (length + 2));
}
}
