TReturn IQueryClient.Call <TReturn>(Type interfaceType, string methodName, object[] arguments)
{
var providerName = interfaceType.Name;
var stringArguments = arguments.Select(x => JsonSerializer.Serialize(x)).ToArray();
var returnType = typeof(TReturn);
var data = new CQRSRequestData()
{
ProviderType = providerName,
ProviderMethod = methodName,
};
data.AddProviderArguments(arguments);
var returnTypeDetails = TypeAnalyzer.GetTypeDetail(returnType);
if (returnTypeDetails.IsTask)
{
var callRequestAsyncMethodGeneric = TypeAnalyzer.GetGenericMethodDetail(requestAsyncMethod, returnTypeDetails.InnerTypes.ToArray());
return((TReturn)callRequestAsyncMethodGeneric.Caller(this, new object[] { endpointAddress, providerName, requestContentType, data, true }));
}
else
{
var model = Request <TReturn>(endpointAddress, providerName, requestContentType, data, true);
return(model);
}
}
private static Task Dispatch(CQRSRequestData data)
{
var commandType = Discovery.GetTypeFromName(data.MessageType);
var typeDetail = TypeAnalyzer.GetTypeDetail(commandType);
if (!typeDetail.Interfaces.Contains(typeof(ICommand)))
{
throw new Exception($"Type {data.MessageType} is not a command");
}
bool exposed = typeDetail.Attributes.Any(x => x is ServiceExposedAttribute attribute && (!attribute.NetworkType.HasValue || attribute.NetworkType == NetworkType.Api)) &&
!typeDetail.Attributes.Any(x => x is ServiceBlockedAttribute attribute && (!attribute.NetworkType.HasValue || attribute.NetworkType == NetworkType.Api));
if (!exposed)
{
throw new Exception($"Command {data.MessageType} is not exposed to {NetworkType.Api}");
}
var command = (ICommand)JsonSerializer.Deserialize(data.MessageData, commandType);
if (data.MessageAwait)
{
return(Bus.HandleRemoteCommandDispatchAwaitAsync(command));
}
else
{
return(Bus.HandleRemoteCommandDispatchAsync(command));
}
}
private static Task <RemoteQueryCallResponse> Call(CQRSRequestData data)
{
var providerType = Discovery.GetTypeFromName(data.ProviderType);
if (!providerType.IsInterface)
{
throw new ArgumentException($"Provider {data.ProviderType} is not an interface type");
}
var typeDetail = TypeAnalyzer.GetTypeDetail(providerType);
bool exposed = typeDetail.Attributes.Any(x => x is ServiceExposedAttribute attribute && (!attribute.NetworkType.HasValue || attribute.NetworkType == NetworkType.Api)) &&
!typeDetail.Attributes.Any(x => x is ServiceBlockedAttribute attribute && (attribute.NetworkType == NetworkType.Api || !attribute.NetworkType.HasValue));
MethodBase method = null;
foreach (var methodInfo in typeDetail.MethodDetails)
{
if (methodInfo.MethodInfo.Name == data.ProviderMethod && methodInfo.ParametersInfo.Count == (data.ProviderArguments != null ? data.ProviderArguments.Length : 0))
{
if (!exposed && (!methodInfo.Attributes.Any(x => x is ServiceExposedAttribute attribute && (!attribute.NetworkType.HasValue || attribute.NetworkType == NetworkType.Api)) || methodInfo.Attributes.Any(x => x is ServiceBlockedAttribute attribute && (!attribute.NetworkType.HasValue || attribute.NetworkType == NetworkType.Api))))
{
throw new Exception($"Method {data.ProviderType}.{data.ProviderMethod} is not exposed to {NetworkType.Api}");
}
method = methodInfo.MethodInfo;
break;
}
}
if (method == null)
{
throw new Exception($"Method {data.ProviderType}.{data.ProviderMethod} does not exsist");
}
return(Bus.HandleRemoteQueryCallAsync(providerType, data.ProviderMethod, data.ProviderArguments));
}
Task ICommandClient.DispatchAsyncAwait(ICommand message)
{
var commandType = message.GetType();
var commendTypeName = commandType.GetNiceFullName();
var commandData = JsonSerializer.Serialize(message, commandType);
var data = new CQRSRequestData()
{
MessageType = commendTypeName,
MessageData = commandData,
MessageAwait = true
};
return(RequestAsync <object>(endpointAddress, commendTypeName, requestContentType, data, false));
}
protected override async Task DispatchInternal(ICommand command, bool messageAwait)
{
var messageType = command.GetType();
var messageTypeName = messageType.GetNiceName();
var messageData = System.Text.Json.JsonSerializer.Serialize(command, messageType);
var data = new CQRSRequestData()
{
MessageType = messageTypeName,
MessageData = messageData,
MessageAwait = messageAwait
};
switch (networkType)
{
case NetworkType.Internal:
data.AddClaims();
break;
case NetworkType.Api:
break;
default:
throw new NotImplementedException();
}
var stopwatch = Stopwatch.StartNew();
var client = new TcpClient(endpoint.AddressFamily);
client.NoDelay = true;
var bufferOwner = BufferArrayPool <byte> .Rent(TcpRawCommon.BufferLength);
var buffer = bufferOwner.AsMemory();
Stream stream = null;
Stream requestBodyStream = null;
FinalBlockStream requestBodyCryptoStream = null;
Stream responseBodyStream = null;
try
{
await client.ConnectAsync(endpoint.Address, endpoint.Port);
stream = client.GetStream();
//Request Header
var requestHeaderLength = TcpRawCommon.BufferHeader(buffer, data.MessageType, contentType);
#if NETSTANDARD2_0
await stream.WriteAsync(bufferOwner, 0, requestHeaderLength);
#else
await stream.WriteAsync(buffer.Slice(0, requestHeaderLength));
#endif
requestBodyStream = new TcpRawProtocolBodyStream(stream, null, true);
if (encryptionKey != null)
{
requestBodyCryptoStream = SymmetricEncryptor.Encrypt(encryptionAlgorithm, encryptionKey, requestBodyStream, true, true);
await ContentTypeSerializer.SerializeAsync(contentType, requestBodyCryptoStream, data);
#if NET5_0_OR_GREATER
await requestBodyCryptoStream.FlushFinalBlockAsync();
#else
requestBodyCryptoStream.FlushFinalBlock();
#endif
#if NETSTANDARD2_0
requestBodyCryptoStream.Dispose();
#else
await requestBodyCryptoStream.DisposeAsync();
#endif
requestBodyCryptoStream = null;
}
else
{
await ContentTypeSerializer.SerializeAsync(contentType, requestBodyStream, data);
await requestBodyStream.FlushAsync();
}
#if NETSTANDARD2_0
requestBodyStream.Dispose();
#else
await requestBodyStream.DisposeAsync();
#endif
requestBodyStream = null;
//Response Header
var headerPosition = 0;
var headerLength = 0;
var requestHeaderEnd = false;
while (!requestHeaderEnd)
{
if (headerLength == buffer.Length)
{
throw new Exception($"{nameof(TcpRawCQRSClient)} Header Too Long");
}
#if NETSTANDARD2_0
var bytesRead = await stream.ReadAsync(bufferOwner, headerPosition, buffer.Length - headerPosition);
#else
var bytesRead = await stream.ReadAsync(buffer.Slice(headerPosition, buffer.Length - headerPosition));
#endif
if (bytesRead == 0)
{
throw new EndOfStreamException();
}
headerLength += bytesRead;
requestHeaderEnd = TcpRawCommon.ReadToHeaderEnd(buffer, ref headerPosition, headerLength);
}
var responseHeader = TcpRawCommon.ReadHeader(buffer, headerPosition, headerLength);
//Response Body
responseBodyStream = new TcpRawProtocolBodyStream(stream, responseHeader.BodyStartBuffer, false);
if (responseHeader.IsError)
{
if (encryptionKey != null)
{
responseBodyStream = SymmetricEncryptor.Decrypt(encryptionAlgorithm, encryptionKey, responseBodyStream, false, false);
}
var responseException = await ContentTypeSerializer.DeserializeExceptionAsync(contentType, responseBodyStream);
throw responseException;
}
if (responseBodyStream != null)
{
#if NETSTANDARD2_0
responseBodyStream.Dispose();
#else
await responseBodyStream.DisposeAsync();
#endif
}
client.Dispose();
stopwatch.Stop();
_ = Log.TraceAsync($"{nameof(TcpRawCQRSClient)}Sent: {messageTypeName} {stopwatch.ElapsedMilliseconds}");
}
catch
{
if (responseBodyStream != null)
{
#if NETSTANDARD2_0
responseBodyStream.Dispose();
#else
await responseBodyStream.DisposeAsync();
#endif
}
if (requestBodyStream != null)
{
#if NETSTANDARD2_0
requestBodyStream.Dispose();
#else
await requestBodyStream.DisposeAsync();
#endif
}
if (stream != null)
{
#if NETSTANDARD2_0
stream.Dispose();
#else
await stream.DisposeAsync();
#endif
}
client.Dispose();
throw;
}
finally
{
BufferArrayPool <byte> .Return(bufferOwner);
}
}
protected override TReturn CallInternal <TReturn>(bool isStream, Type interfaceType, string methodName, object[] arguments)
{
var data = new CQRSRequestData()
{
ProviderType = interfaceType.Name,
ProviderMethod = methodName
};
data.AddProviderArguments(arguments);
switch (networkType)
{
case NetworkType.Internal:
data.AddClaims();
break;
case NetworkType.Api:
break;
default: throw new NotImplementedException();
}
var stopwatch = Stopwatch.StartNew();
var client = new TcpClient(endpoint.AddressFamily);
var bufferOwner = BufferArrayPool <byte> .Rent(TcpRawCommon.BufferLength);
var buffer = bufferOwner.AsMemory();
Stream stream = null;
Stream requestBodyStream = null;
FinalBlockStream requestBodyCryptoStream = null;
Stream responseBodyStream = null;
try
{
client.Connect(endpoint.Address, endpoint.Port);
stream = client.GetStream();
//Request Header
var requestHeaderLength = TcpRawCommon.BufferHeader(buffer, data.ProviderType, contentType);
#if NETSTANDARD2_0
stream.Write(bufferOwner, 0, requestHeaderLength);
#else
stream.Write(buffer.Span.Slice(0, requestHeaderLength));
#endif
requestBodyStream = new TcpRawProtocolBodyStream(stream, null, true);
if (encryptionKey != null)
{
requestBodyCryptoStream = SymmetricEncryptor.Encrypt(encryptionAlgorithm, encryptionKey, requestBodyStream, true, true);
ContentTypeSerializer.Serialize(contentType, requestBodyCryptoStream, data);
requestBodyCryptoStream.FlushFinalBlock();
requestBodyCryptoStream.Dispose();
requestBodyCryptoStream = null;
}
else
{
ContentTypeSerializer.Serialize(contentType, requestBodyStream, data);
requestBodyStream.Flush();
}
requestBodyStream.Dispose();
requestBodyStream = null;
//Response Header
var headerPosition = 0;
var headerLength = 0;
var requestHeaderEnd = false;
while (!requestHeaderEnd)
{
if (headerLength == buffer.Length)
{
throw new Exception($"{nameof(TcpRawCQRSClient)} Header Too Long");
}
#if NETSTANDARD2_0
var bytesRead = stream.Read(bufferOwner, headerPosition, buffer.Length - headerPosition);
#else
var bytesRead = stream.Read(buffer.Span.Slice(headerPosition, buffer.Length - headerPosition));
#endif
if (bytesRead == 0)
{
throw new EndOfStreamException();
}
headerLength += bytesRead;
requestHeaderEnd = TcpRawCommon.ReadToHeaderEnd(buffer, ref headerPosition, headerLength);
}
var responseHeader = TcpRawCommon.ReadHeader(buffer, headerPosition, headerLength);
responseBodyStream = new TcpRawProtocolBodyStream(stream, responseHeader.BodyStartBuffer, false);
if (encryptionKey != null)
{
responseBodyStream = SymmetricEncryptor.Decrypt(encryptionAlgorithm, encryptionKey, responseBodyStream, false, false);
}
if (responseHeader.IsError)
{
var responseException = ContentTypeSerializer.DeserializeException(contentType, responseBodyStream);
throw responseException;
}
stopwatch.Stop();
_ = Log.TraceAsync($"{nameof(TcpRawCQRSClient)} Query: {interfaceType.GetNiceName()}.{data.ProviderMethod} {stopwatch.ElapsedMilliseconds}");
if (isStream)
{
return((TReturn)(object)responseBodyStream); //TODO better way to convert type???
}
else
{
var model = ContentTypeSerializer.Deserialize <TReturn>(contentType, responseBodyStream);
responseBodyStream.Dispose();
client.Dispose();
return(model);
}
}
catch
{
try
{
//crypto stream can error, we want to throw the actual error
if (responseBodyStream != null)
{
responseBodyStream.Dispose();
}
}
catch { }
if (requestBodyStream != null)
{
requestBodyStream.Dispose();
}
if (requestBodyCryptoStream != null)
{
requestBodyCryptoStream.Dispose();
}
if (stream != null)
{
stream.Dispose();
}
client.Dispose();
throw;
}
finally
{
BufferArrayPool <byte> .Return(bufferOwner);
}
}
protected override TReturn CallInternal <TReturn>(bool isStream, Type interfaceType, string methodName, object[] arguments)
{
var data = new CQRSRequestData()
{
ProviderType = interfaceType.Name,
ProviderMethod = methodName
};
data.AddProviderArguments(arguments);
HttpAuthHeaders authHeaders = null;
switch (networkType)
{
case NetworkType.Internal:
data.AddClaims();
break;
case NetworkType.Api:
if (apiAuthorizer != null)
{
authHeaders = apiAuthorizer.BuildAuthHeaders();
}
break;
default:
throw new NotImplementedException();
}
var stopwatch = Stopwatch.StartNew();
var client = new TcpClient(endpoint.AddressFamily);
client.NoDelay = true;
var bufferOwner = BufferArrayPool <byte> .Rent(HttpCommon.BufferLength);
var buffer = bufferOwner.AsMemory();
Stream stream = null;
Stream requestBodyStream = null;
Stream responseBodyStream = null;
try
{
client.Connect(endpoint.Address, endpoint.Port);
stream = client.GetStream();
//Request Header
var requestHeaderLength = HttpCommon.BufferHeader(buffer, data.ProviderType, contentType, serviceUrl, authHeaders);
#if NETSTANDARD2_0
stream.Write(bufferOwner, 0, requestHeaderLength);
#else
stream.Write(buffer.Span.Slice(0, requestHeaderLength));
#endif
requestBodyStream = new HttpProtocolBodyStream(null, stream, null, true);
ContentTypeSerializer.Serialize(contentType, requestBodyStream, data);
requestBodyStream.Flush();
requestBodyStream.Dispose();
requestBodyStream = null;
//Response Header
var headerPosition = 0;
var headerLength = 0;
var headerEnd = false;
while (!headerEnd)
{
if (headerLength == buffer.Length)
{
throw new Exception($"{nameof(HttpCQRSClient)} Header Too Long");
}
#if NETSTANDARD2_0
var bytesRead = stream.Read(bufferOwner, headerPosition, buffer.Length - headerPosition);
#else
var bytesRead = stream.Read(buffer.Span.Slice(headerPosition, buffer.Length - headerPosition));
#endif
if (bytesRead == 0)
{
throw new EndOfStreamException();
}
headerLength += bytesRead;
headerEnd = HttpCommon.ReadToHeaderEnd(buffer, ref headerPosition, headerLength);
}
var responseHeader = HttpCommon.ReadHeader(buffer, headerPosition, headerLength);
//Response Body
responseBodyStream = new HttpProtocolBodyStream(null, stream, responseHeader.BodyStartBuffer, false);
if (responseHeader.IsError)
{
var responseException = ContentTypeSerializer.DeserializeException(contentType, responseBodyStream);
throw responseException;
}
stopwatch.Stop();
_ = Log.TraceAsync($"{nameof(HttpCQRSClient)} Query: {interfaceType.GetNiceName()}.{data.ProviderMethod} {stopwatch.ElapsedMilliseconds}");
if (isStream)
{
return((TReturn)(object)responseBodyStream);
}
else
{
var model = ContentTypeSerializer.Deserialize <TReturn>(contentType, responseBodyStream);
responseBodyStream.Dispose();
client.Dispose();
return(model);
}
}
catch
{
if (responseBodyStream != null)
{
responseBodyStream.Dispose();
}
if (requestBodyStream != null)
{
requestBodyStream.Dispose();
}
if (stream != null)
{
stream.Dispose();
}
client.Dispose();
throw;
}
finally
{
BufferArrayPool <byte> .Return(bufferOwner);
}
}
public static async Task <ApiResponseData> HandleRequestAsync(ContentType?contentType, CQRSRequestData data)
{
if (!String.IsNullOrWhiteSpace(data.ProviderType))
{
if (contentType == null)
{
return(null);
}
var response = await Call(data);
if (response.Stream != null)
{
return(new ApiResponseData(response.Stream));
}
else if (response.Model != null)
{
var bytes = ContentTypeSerializer.Serialize(contentType.Value, response.Model);
return(new ApiResponseData(bytes));
}
else
{
return(new ApiResponseData(Array.Empty <byte>()));
}
}
else if (!String.IsNullOrWhiteSpace(data.MessageType))
{
await Dispatch(data);
return(new ApiResponseData());
}
return(null);
}