/// <exception cref="WrxTcpAuthorizationFailedException">Если авторизация не удалась.</exception>
public static async ValueTask <T> AuthorizeAsync <T>(IPacketWriter <WrxPacket> requestWriter, IPacketReader <WrxPacket> responseReader, IAsyncWrxTcpHubAuthorizer <T> authorizer, ArrayPool <byte> byteArrayPool, CancellationToken cancellationToken = default)
{
using var requestPacket = new WrxPacket(0, WrxPacketAction.TcpAuthorizationRequest, 0, _zeroes.AsMemory());
await requestWriter.WriteAsync(requestPacket, cancellationToken).ConfigureAwait(false);
using var responsePacket = await responseReader.ReadAsync(cancellationToken).ConfigureAwait(false);
var(_, responseAction, responseCommand, responseData) = responsePacket;
if (responseAction != WrxPacketAction.TcpAuthorizationResponse)
{
throw new Exception("Invalid action.");
}
if (responseCommand != 0)
{
throw new Exception("Invalid command.");
}
var authorizationData = WrxTcpAuthorizationData.Read(responseData.Span);
var info = await authorizer.ValidateDataAsync(authorizationData, cancellationToken).ConfigureAwait(false);
using var acknowledgementPacket = new WrxPacket(1, WrxPacketAction.TcpAuthorizationRequest, 1, _zeroes.AsMemory());
await requestWriter.WriteAsync(acknowledgementPacket, cancellationToken).ConfigureAwait(false);
return(info);
}
public static async ValueTask AuthorizeAsync(IPacketReader <WrxPacket> requestReader, IPacketWriter <WrxPacket> responseWriter, IAsyncWrxTcpDeviceAuthorizer authorizer, ArrayPool <byte> byteArrayPool, CancellationToken cancellationToken = default)
{
using var requestPacket = await requestReader.ReadAsync(cancellationToken).ConfigureAwait(false);
var(protocol, requestAction, requestCommand, _) = requestPacket;
if (requestAction != WrxPacketAction.TcpAuthorizationRequest)
{
throw new Exception();
}
if (requestCommand != 0)
{
throw new Exception();
}
var byteArray = byteArrayPool.Rent(WrxTcpAuthorizationData.Size);
try
{
var bytes = byteArray.AsMemory();
(await authorizer.ProvideDataAsync(cancellationToken).ConfigureAwait(false)).Write(bytes.Span);
using var responsePacket = new WrxPacket(protocol, WrxPacketAction.TcpAuthorizationResponse, 0, bytes[..WrxTcpAuthorizationData.Size]);