private BlazeMessageData EncodeNotification(BlazeNotification notification)
{
_blazeTypeLookup.TryGetResponseComponentCommand(notification.GetType(), out var component, out var command);
var header = new BlazeHeader
{
Component = component,
Command = command,
MessageId = 0, //always 0
MessageType = BlazeMessageType.Notification,
ErrorCode = notification.BlazeErrorCode
};
//TODO: remove stream
var notificationOutput = new MemoryStream();
_blazeSerializer.Serialize(notificationOutput, notification);
var messageData = new BlazeMessageData
{
Header = header,
Payload = new ReadOnlySequence <byte>(notificationOutput.ToArray())
};
return(messageData);
}
public override async Task OnConnectedAsync(ConnectionContext connection)
{
Logger.Debug($"Redirecting to {_proxySettings.RedirectHost} {_proxySettings.RedirectIp}:{_proxySettings.LocalPort}");
var blazeProtocol = new BlazeProxyProtocol();
var localReader = connection.CreateReader();
var localWriter = connection.CreateWriter();
while (true)
{
try
{
var result = await localReader.ReadAsync(blazeProtocol);
var message = result.Message;
if (message != null)
{
if (message.Header.Component == BlazeComponent.Redirector &&
message.Header.Command == (ushort)RedirectorCommand.ServerInfo)
{
var hostBytes = new List <byte>(Encoding.ASCII.GetBytes(_proxySettings.RedirectHost));
var payload = new List <byte>();
payload.AddRange(new byte[] {
0x86, 0x49, 0x32, //ADDR
0xD0, 0x00, //union(0)
0xDA, 0x1B, 0x35, //VALU
0x00, //start struct
0xA2, 0xFC, 0xF4, //HOST
});
payload.AddRange(GetStringLengthBytes((uint)hostBytes.Count + 1));
payload.AddRange(hostBytes);
payload.AddRange(new byte[] {
0x00, //endbyte for string
0xA7, 0x00, 0x00, //IP
0x74, //uint32
});
var ipBytes = BitConverter.GetBytes(Convert.ToUInt32(IPAddress.Parse(_proxySettings.RedirectIp).Address));
Array.Reverse(ipBytes); //big endian
payload.AddRange(ipBytes);
payload.AddRange(new byte[] {
0xC2, 0xFC, 0xB4, //PORT
0x52, //uint16
});
var portBytes = BitConverter.GetBytes(Convert.ToUInt16(_proxySettings.LocalPort));
Array.Reverse(portBytes); //big endian
payload.AddRange(portBytes);
payload.AddRange(new byte[] {
0x00, //end struct
0xCE, 0x58, 0xF5, //SECU
0x21, //int8
0x00, //0
0xE2, 0x4B, 0xB3, //XDNS
0x74, //uint32
0x00, 0x00, 0x00, 0x00, //0
});
var response = new BlazeMessageData
{
Header = new BlazeHeader
{
Command = message.Header.Command,
Component = message.Header.Component,
MessageType = BlazeMessageType.Reply,
MessageId = message.Header.MessageId,
ErrorCode = 0
},
Payload = new ReadOnlySequence <byte>(payload.ToArray())
};
await localWriter.WriteAsync(blazeProtocol, response);
}
}
if (result.IsCompleted)
{
break;
}
}
finally
{
localReader.Advance();
}
}
}
