public void validate(UpgradeRequest request)
{
// check for 101 - Switching Protocols
int statusCode = getStatusCode();
if (statusCode != 101)
{
throw new UpgradeException(statusCode, getStatusReason());
}
// Connection header must be "upgrade"
String connection = getHeader("Connection");
if (String.Compare("upgrade", connection, StringComparison.CurrentCultureIgnoreCase) != 0)
{
throw new UpgradeException(statusCode,
"expected Connection header value of [upgrade], received [" + connection + "]");
}
// Upgrade header must be "websocket"
String upgrade = getHeader("Upgrade");
if (String.Compare("websocket", upgrade, StringComparison.CurrentCultureIgnoreCase) != 0)
{
throw new UpgradeException(statusCode,
"expected Upgrade header value of [websocket], received [" + upgrade + "]");
}
// check for properly hashed request key
String key = request.getKey();
String keyHash = getHeader("Sec-WebSocket-Accept");
/*String expectedKeyHash = generateKeyHash(key);
* if (String.Compare(expectedKeyHash, keyHash) != 0) {
* throw new UpgradeException(statusCode,
* "invalid Sec-WebSocket-Accept value");
* }*/
}
public void Run()
{
try
{
socket = new Windows.Networking.Sockets.StreamSocket();
UpgradeRequest request = null;
try
{
// connect to the eftlServer
if (String.Compare("ws", uri.Scheme, StringComparison.CurrentCultureIgnoreCase) == 0)
{
socket.ConnectAsync(remoteHostName, getPort().ToString(), Windows.Networking.Sockets.SocketProtectionLevel.PlainSocket).AsTask().Wait(5000);
}
else if (String.Compare("wss", uri.Scheme, StringComparison.CurrentCultureIgnoreCase) == 0)
{
socket.ConnectAsync(remoteHostName, getPort().ToString(), Windows.Networking.Sockets.SocketProtectionLevel.Ssl).AsTask().Wait(5000);
}
Windows.Networking.Sockets.SocketProtectionLevel l = socket.Information.ProtectionLevel;
Console.WriteLine("ProtectionLevel = " + l);
// send HTTP upgrade request
request = new UpgradeRequest(uri, protocols);
DataWriter writer = new DataWriter(socket.OutputStream);
String s = request.toString();
writer.WriteString(s);
// Call StoreAsync method to store the data to a backing stream
try
{
writer.StoreAsync().AsTask().Wait();
writer.FlushAsync().AsTask().Wait();
}
catch (Exception e) {
Console.WriteLine(e.StackTrace);
}
writer.DetachStream();
}
catch (Exception e)
{
Exception exp = new Exception("failed to connect" + ((e.InnerException != null) ? e.InnerException.Message : ""));
notifyError(exp);
}
byte[] buffer = new byte[32768];
IInputStream inputStream = socket.InputStream;
try {
inputStream.ReadAsync(buffer.AsBuffer(), (uint)buffer.Length, InputStreamOptions.Partial).AsTask().Wait();
System.IO.Stream stream = new System.IO.MemoryStream(buffer);
// read HTTP upgrade response
UpgradeResponse response = UpgradeResponse.read(stream);
response.validate(request);
// get the agreed upon protocol
protocol = response.getProtocol();
}
catch (Exception e)
{
notifyError(e);
}
// notify listener
notifyOpen();
// dispatch frames
dispatch();
}
catch (Exception e)
{
notifyError(e);
}
finally
{
socket.Dispose();
}
}
