NServiceBus：传出消息变更器中的标识上下文

Question

NServiceBus 4.4.0

嗨！

我使用消息mutators进行模拟。基本上，我在传出mutator中的JWT标记中序列化ClaimsPrincipal.Identity，并在传入的mutator中反序列化它以将其添加到NServiceBus主机应用程序的主体。 （基于这篇文章：http://beingabstract.com/2014/10/serializing-the-claimsidentity/）。问题是，当我们在传出的mutator（IMutateOutgoingTransportMessages）中时，ClaimsPrincipal.Identity不包含所有声明。只有名字。但是，如果我在“Bus.Send”命令之前查看，我有正确的声明（组，权限等）。

传出消息mutator驻留在外部类中，由我的主项目引用。这是来自传出的mutator的代码：

public class OutgoingAccessMutator : IMutateOutgoingTransportMessages, INeedInitialization
{
    public IBus Bus { get; set; }

    public void Init()
    {
        Configure.Instance.Configurer.ConfigureComponent<OutgoingAccessMutator>(DependencyLifecycle.InstancePerCall);
    }

    public void MutateOutgoing(object[] messages, TransportMessage transportMessage)
    {
       if (!transportMessage.Headers.ContainsKey(Common.Constants.Securite.AuthenticationTokenID))
        {
            transportMessage.Headers[Common.Constants.Securite.AuthenticationTokenID] =
                TokenHelper.GenerateToken(ClaimsPrincipal.Current.IdentitePrincipale() as ClaimsIdentity);
        }
    }
}

GenerateToken位于mutator dll中的静态助手类中：

public static string GenerateToken(ClaimsIdentity identity)
    {
        var now = DateTime.UtcNow;
        var tokenHandler = new JwtSecurityTokenHandler();
        var securityKey = System.Text.Encoding.Unicode.GetBytes(Common.Constants.Securite.NServiceBusMessageTokenSymetricKey);
        var inMemorySymmetricSecurityKey = new InMemorySymmetricSecurityKey(securityKey);

        var tokenDescriptor = new SecurityTokenDescriptor
        {
            Subject = identity,
            TokenIssuerName = Common.Constants.Securite.NServiceBusMessageTokenIssuer,
            AppliesToAddress = Common.Constants.Securite.NServiceBusMessageTokenScope,
            Lifetime = new Lifetime(now, now.AddMinutes(5)),
            SigningCredentials = new SigningCredentials(inMemorySymmetricSecurityKey, Common.Constants.Securite.SignatureAlgorithm, Common.Constants.Securite.DigestAlgorithm)
        };

        var token = tokenHandler.CreateToken(tokenDescriptor);
        var tokenString = tokenHandler.WriteToken(token);

        return tokenString;
    }

然后在另一个进程（Windows服务可执行主机）中的传入消息mutator中，我反序列化它：

public class IncomingAccessTokenMutator : IMutateIncomingTransportMessages, INeedInitialization
{
    public IBus Bus { get; set; }

    public void Init()
    {
        Configure.Instance.Configurer.ConfigureComponent<IncomingAccessTokenMutator>(DependencyLifecycle.InstancePerCall);
    }

    public void MutateIncoming(TransportMessage transportMessage)
    {

        if (transportMessage.Headers.ContainsKey(Common.Constants.Securite.AuthenticationTokenID))
        {
            try
            {
                var token = transportMessage.Headers[Common.Constants.Securite.AuthenticationTokenID];
                var identity = TokenHelper.ReadToken(token);
                if (identity != null)
                {
                    identity.Label = Common.Constants.Securite.NomIdentitePrincipale;
                    ClaimsPrincipal.Current.AddIdentity(identity);
                }
            }
            catch (Exception)
            {
                Bus.DoNotContinueDispatchingCurrentMessageToHandlers();
                throw;
            }
        }
    }
}

有没有人知道为什么在mutator内部和发送消息的服务中身份上下文不一样？