public static WSClientHandshake FromBytes(byte[] buffer)
{
WSClientHandshake handshake = new WSClientHandshake();
string hs = new string(Encoding.UTF8.GetChars(buffer));
string[] lines = hs.Split('\r', '\n');
foreach (string line in lines)
{
if (!Utils.StringIsNullOrEmpty(line))
{
int idx = line.IndexOf(": ");
if (idx == -1) // first line
{
handshake.ResourcePath = line.Split(' ')[1];
}
else
{
string name = line.Substring(0, idx);
string value = line.Substring(idx + 2);
switch (name.ToLower())
{
case "host": handshake.Host = value; break;
case "origin": handshake.Origin = value; break;
case "sec-websocket-key": handshake.Key = value; break;
case "sec-websocket-version": handshake.Version = value; break;
case "sec-websocket-protocol": handshake.SubProtocol = value; break;
case "cookie":
handshake.Cookies = new HttpCookieCollection();
string[] cookies = value.Split(';');
foreach (string item in cookies)
{
int i = item.IndexOf("=");
string c_name = item.Substring(0, i);
string c_value = item.Substring(i + 1);
handshake.Cookies.Add(new HttpCookie(c_name.TrimStart(), c_value));
}
break;
default:
if (handshake.AdditionalFields == null)
{
handshake.AdditionalFields = new Hashtable();
}
handshake.AdditionalFields[name] = value;
break;
}
}
}
}
return(handshake);
//string pattern = @"^(?<connect>[^\s]+)\s(?<path>[^\s]+)\sHTTP\/1\.1\r\n" + // request line
// @"((?<field_name>[^:\r\n]+):\s(?<field_value>[^\r\n]+)\r\n)+"; // unordered set of fields (name-chars colon space any-chars cr lf)
//string paramNamePattern = @"[^:\r\n]+";
//string paramValuePattern = @"[^\r\n]+";
//string pattern = @"^[\S]+\s([\S]+)\sHTTP\/1\.1\r\n" +
// "((" + paramNamePattern + @"):\s(" + paramValuePattern + @")\r\n)+";
//string pattern2 = @"([^:\r\n]+):\s([^\r\n]+)\r\n";
// subtract the challenge bytes from the handshake
//handshake.ChallengeBytes = new byte[8];
//Array.Copy(buffer, buffer.Length - 8, handshake.ChallengeBytes, 0, 8);
// get the rest of the handshake
//byte[] buffer2 = new byte[buffer.Length - 8];
//Array.Copy(buffer, 0, buffer2, 0, buffer.Length - 8);
//string utf8_handshake = new string(Encoding.UTF8.GetChars(buffer2));
//string utf8_handshake = new string(Encoding.UTF8.GetChars(buffer));
//Regex regex;
//try
//{
// regex = new Regex(pattern, RegexOptions.IgnoreCase);
//}
//catch (Exception e)
//{
// Debug.Print("Exception thrown from method ParseClientHandshake:\n" + e.Message);
// return null;
//}
//var match = regex.Match(utf8_handshake);
//var groups = match.Groups;
//// save the request path
//handshake.ResourcePath = groups["path"].Value;
//// run through every match and save them in the handshake object
//for (int i = 0; i < groups["field_name"].Captures.Count; i++)
//{
// var name = groups["field_name"].Captures[i].ToString();
// var value = groups["field_value"].Captures[i].ToString();
// switch (name.ToLower())
// {
// case "sec-websocket-key":
// handshake.Key = value;
// break;
// //case "sec-websocket-key1":
// // handshake.Key1 = value;
// // break;
// //case "sec-websocket-key2":
// // handshake.Key2 = value;
// // break;
// case "sec-websocket-protocol":
// handshake.SubProtocol = value;
// break;
// case "origin":
// handshake.Origin = value;
// break;
// case "host":
// handshake.Host = value;
// break;
// case "cookie":
// // // create and fill a cookie collection from the data in the handshake
// // handshake.Cookies = new HttpCookieCollection();
// // var cookies = value.Split(';');
// // foreach (var item in cookies)
// // {
// // // the name if before the '=' char
// // var c_name = item.Remove(item.IndexOf('='));
// // // the value is after
// // var c_value = item.Substring(item.IndexOf('=') + 1);
// // // put the cookie in the collection (this also parses the sub-values and such)
// // handshake.Cookies.Add(new HttpCookie(c_name.TrimStart(), c_value));
// // }
// break;
// default:
// // // some field that we don't know about
// // if (handshake.AdditionalFields == null)
// // handshake.AdditionalFields = new Dictionary<string, string>();
// // handshake.AdditionalFields[name] = value;
// break;
// }
//}
//return handshake;
}
public static WSClientHandshake FromBytes(byte[] buffer)
{
WSClientHandshake handshake = new WSClientHandshake();
string hs = new string(Encoding.UTF8.GetChars(buffer));
string[] lines = hs.Split('\r', '\n');
foreach (string line in lines)
{
if (!Utils.StringIsNullOrEmpty(line))
{
int idx = line.IndexOf(": ");
if (idx == -1) // first line
handshake.ResourcePath = line.Split(' ')[1];
else
{
string name = line.Substring(0, idx);
string value = line.Substring(idx + 2);
switch (name.ToLower())
{
case "host": handshake.Host = value; break;
case "origin": handshake.Origin = value; break;
case "sec-websocket-key": handshake.Key = value; break;
case "sec-websocket-version": handshake.Version = value; break;
case "sec-websocket-protocol": handshake.SubProtocol = value; break;
case "cookie":
handshake.Cookies = new HttpCookieCollection();
string[] cookies = value.Split(';');
foreach (string item in cookies)
{
int i = item.IndexOf("=");
string c_name = item.Substring(0, i);
string c_value = item.Substring(i + 1);
handshake.Cookies.Add(new HttpCookie(c_name.TrimStart(), c_value));
}
break;
default:
if (handshake.AdditionalFields == null)
handshake.AdditionalFields = new Hashtable();
handshake.AdditionalFields[name] = value;
break;
}
}
}
}
return handshake;
//string pattern = @"^(?<connect>[^\s]+)\s(?<path>[^\s]+)\sHTTP\/1\.1\r\n" + // request line
// @"((?<field_name>[^:\r\n]+):\s(?<field_value>[^\r\n]+)\r\n)+"; // unordered set of fields (name-chars colon space any-chars cr lf)
//string paramNamePattern = @"[^:\r\n]+";
//string paramValuePattern = @"[^\r\n]+";
//string pattern = @"^[\S]+\s([\S]+)\sHTTP\/1\.1\r\n" +
// "((" + paramNamePattern + @"):\s(" + paramValuePattern + @")\r\n)+";
//string pattern2 = @"([^:\r\n]+):\s([^\r\n]+)\r\n";
// subtract the challenge bytes from the handshake
//handshake.ChallengeBytes = new byte[8];
//Array.Copy(buffer, buffer.Length - 8, handshake.ChallengeBytes, 0, 8);
// get the rest of the handshake
//byte[] buffer2 = new byte[buffer.Length - 8];
//Array.Copy(buffer, 0, buffer2, 0, buffer.Length - 8);
//string utf8_handshake = new string(Encoding.UTF8.GetChars(buffer2));
//string utf8_handshake = new string(Encoding.UTF8.GetChars(buffer));
//Regex regex;
//try
//{
// regex = new Regex(pattern, RegexOptions.IgnoreCase);
//}
//catch (Exception e)
//{
// Debug.Print("Exception thrown from method ParseClientHandshake:\n" + e.Message);
// return null;
//}
//var match = regex.Match(utf8_handshake);
//var groups = match.Groups;
//// save the request path
//handshake.ResourcePath = groups["path"].Value;
//// run through every match and save them in the handshake object
//for (int i = 0; i < groups["field_name"].Captures.Count; i++)
//{
// var name = groups["field_name"].Captures[i].ToString();
// var value = groups["field_value"].Captures[i].ToString();
// switch (name.ToLower())
// {
// case "sec-websocket-key":
// handshake.Key = value;
// break;
// //case "sec-websocket-key1":
// // handshake.Key1 = value;
// // break;
// //case "sec-websocket-key2":
// // handshake.Key2 = value;
// // break;
// case "sec-websocket-protocol":
// handshake.SubProtocol = value;
// break;
// case "origin":
// handshake.Origin = value;
// break;
// case "host":
// handshake.Host = value;
// break;
// case "cookie":
// // // create and fill a cookie collection from the data in the handshake
// // handshake.Cookies = new HttpCookieCollection();
// // var cookies = value.Split(';');
// // foreach (var item in cookies)
// // {
// // // the name if before the '=' char
// // var c_name = item.Remove(item.IndexOf('='));
// // // the value is after
// // var c_value = item.Substring(item.IndexOf('=') + 1);
// // // put the cookie in the collection (this also parses the sub-values and such)
// // handshake.Cookies.Add(new HttpCookie(c_name.TrimStart(), c_value));
// // }
// break;
// default:
// // // some field that we don't know about
// // if (handshake.AdditionalFields == null)
// // handshake.AdditionalFields = new Dictionary<string, string>();
// // handshake.AdditionalFields[name] = value;
// break;
// }
//}
//return handshake;
}
private bool tcpServer_SessionReceived(TcpSession session, byte[] data)
{
if (!session.IsHandshaked)
{
// from tablet:
/*
* GET /Typhoon HTTP/1.1
* Upgrade: WebSocket
* Connection: Upgrade
* Host: 192.168.0.102:2013
* Origin: http://192.168.0.102:81
* Sec-Websocket-Key: +d6dlnAp7rrQ3otS7Zvi7g==
* Sec-WebSocket-Version: 13
+d6dlnAp7rrQ3otS7Zvi7g==: websocket
+d6dlnAp7rrQ3otS7Zvi7g==: Upgrade
*/
// from local:
/*
* GET /Typhoon HTTP/1.1
* Upgrade: WebSocket
* Connection: Upgrade
* Host: localhost:2013
* Origin: http://localhost:81
* Sec-Websocket-Key: K92AZtSFpS+9OgiwcPMheg==
* Sec-WebSocket-Version: 13
* K92AZtSFpS+9OgiwcPMheg==: websocket
* K92AZtSFpS+9OgiwcPMheg==: x-webkit-deflate-frame
* K92AZtSFpS+9OgiwcPMheg==: Upgrade
*/
// location: ws://localhost:2013
// origin: "http://localhost:81"
WSClientHandshake chs = WSClientHandshake.FromBytes(data);
//if (chs.IsValid && "ws://" + chs.Host == location && chs.Origin == origin)
//if (chs.IsValid && "ws://" + chs.Host == location)
if (chs.IsValid)
{
WSServerHandshake shs = new WSServerHandshake(chs.Key);
string stringShake = shs.ToString();
byte[] byteResponse = Encoding.UTF8.GetBytes(stringShake);
session.Send(byteResponse);
session.IsHandshaked = true;
// for debug:
//client.Send(WebSocketDataFrame.WrapString("Hello from server!!!"));
return(false);
}
else
{
return(true); // disconnect client
}
}
else
{
WSDataFrame frame = new WSDataFrame(data);
byte[] payload = null;
if (frame.IsValid() && frame.FIN)
{
payload = frame.GetPayload();
}
// for debug:
//string s = new string(Encoding.UTF8.GetChars(payload));
//string b = "";
//b += s;
return(SessionDataReceived != null?SessionDataReceived(session, payload) : false);
}
}
