private async Task <PlayerConnection> LoginPlayer(WebSocket socket)
{
byte[] buffer = new byte[1024 * 4];
var input = await socket.ReadInputAsync(buffer);
var loginInput = input as TokenInput;
if (loginInput == null)
{
throw new Exception($"Это не {nameof(TokenInput)}");
}
var playerId = loginInput.PlayerId;
var token = loginInput.Token;
if (playerId == null || await _storage.CheckHumanPlayerAsync(playerId.Value, token) == false)
{
playerId = Guid.NewGuid();
token = Guid.NewGuid().ToString("N");
await _storage.CreateHumanPlayerAsync(playerId.Value, token);
}
PlayerConnection playerConnection = _outConnectionManager.PlayerConnected(playerId.Value, new OutputChanel(socket, _loggerFactory));
await socket.SendDataAsync(new SetTokenCommand { playerId = playerId.Value.ToString("N"), token = token });
return(playerConnection);
}
public async Task Invoke(HttpContext context)
{
if (!context.WebSockets.IsWebSocketRequest)
{
return;
}
var socket = await context.WebSockets.AcceptWebSocketAsync();
PlayerConnection playerConnection = null;
try
{
playerConnection = await LoginPlayer(socket);
await Receive(socket, playerConnection);
}
finally
{
if (playerConnection != null)
{
_outConnectionManager.ConnectionClosed(playerConnection.ConnectionId);
}
}
//TODO - investigate the Kestrel exception thrown when this is the last middleware
//await _next.Invoke(context);
}
private async Task Receive(WebSocket socket, PlayerConnection playerConnection)
{
byte[] buffer = new byte[1024 * 4];
_world.Pipe.Post(new PlayerConnected(playerConnection.PlayerId, playerConnection.OutputChanel.Pipe, PlayerType.Human));
while (socket.State == WebSocketState.Open)
{
var input = await socket.ReadInputAsync(buffer);
if (input == null)
{
return;
}
_world.Pipe.Post(new PlayerInput(playerConnection.PlayerId, input));
}
}
internal PlayerConnection PlayerConnected(Guid playerId, OutputChanel outputChanel)
{
lock (Locker)
{
foreach (var connection in PlayerConnections.Where(x => x.PlayerId == playerId).ToArray())
{
RemoveConnection(connection);
}
var newConnection = new PlayerConnection(playerId, outputChanel);
PlayerConnections.Add(newConnection);
DisploseAndRemoveTimer(playerId);
return(newConnection);
}
}
private void RemoveConnection(PlayerConnection connection)
{
connection.OutputChanel.Pipe.Complete();
PlayerConnections.Remove(connection);
}
