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reflection: expose both v1 and v1alpha reflection services (#6329)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,187 @@ | ||
| /* | ||
| * | ||
| * Copyright 2023 gRPC authors. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| */ | ||
|
|
||
| package reflection | ||
|
|
||
| import ( | ||
| v1grpc "google.golang.org/grpc/reflection/grpc_reflection_v1" | ||
| v1pb "google.golang.org/grpc/reflection/grpc_reflection_v1" | ||
| v1alphagrpc "google.golang.org/grpc/reflection/grpc_reflection_v1alpha" | ||
| v1alphapb "google.golang.org/grpc/reflection/grpc_reflection_v1alpha" | ||
| ) | ||
|
|
||
| // asV1Alpha returns an implementation of the v1alpha version of the reflection | ||
| // interface that delegates all calls to the given v1 version. | ||
| func asV1Alpha(svr v1grpc.ServerReflectionServer) v1alphagrpc.ServerReflectionServer { | ||
| return v1AlphaServerImpl{svr: svr} | ||
| } | ||
|
|
||
| type v1AlphaServerImpl struct { | ||
| svr v1grpc.ServerReflectionServer | ||
| } | ||
|
|
||
| func (s v1AlphaServerImpl) ServerReflectionInfo(stream v1alphagrpc.ServerReflection_ServerReflectionInfoServer) error { | ||
| return s.svr.ServerReflectionInfo(v1AlphaServerStreamAdapter{stream}) | ||
| } | ||
|
|
||
| type v1AlphaServerStreamAdapter struct { | ||
| v1alphagrpc.ServerReflection_ServerReflectionInfoServer | ||
| } | ||
|
|
||
| func (s v1AlphaServerStreamAdapter) Send(response *v1pb.ServerReflectionResponse) error { | ||
| return s.ServerReflection_ServerReflectionInfoServer.Send(v1ToV1AlphaResponse(response)) | ||
| } | ||
|
|
||
| func (s v1AlphaServerStreamAdapter) Recv() (*v1pb.ServerReflectionRequest, error) { | ||
| resp, err := s.ServerReflection_ServerReflectionInfoServer.Recv() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return v1AlphaToV1Request(resp), nil | ||
| } | ||
|
|
||
| func v1ToV1AlphaResponse(v1 *v1pb.ServerReflectionResponse) *v1alphapb.ServerReflectionResponse { | ||
| var v1alpha v1alphapb.ServerReflectionResponse | ||
| v1alpha.ValidHost = v1.ValidHost | ||
| if v1.OriginalRequest != nil { | ||
| v1alpha.OriginalRequest = v1ToV1AlphaRequest(v1.OriginalRequest) | ||
| } | ||
| switch mr := v1.MessageResponse.(type) { | ||
| case *v1pb.ServerReflectionResponse_FileDescriptorResponse: | ||
| if mr != nil { | ||
| v1alpha.MessageResponse = &v1alphapb.ServerReflectionResponse_FileDescriptorResponse{ | ||
| FileDescriptorResponse: &v1alphapb.FileDescriptorResponse{ | ||
| FileDescriptorProto: mr.FileDescriptorResponse.GetFileDescriptorProto(), | ||
| }, | ||
| } | ||
| } | ||
| case *v1pb.ServerReflectionResponse_AllExtensionNumbersResponse: | ||
| if mr != nil { | ||
| v1alpha.MessageResponse = &v1alphapb.ServerReflectionResponse_AllExtensionNumbersResponse{ | ||
| AllExtensionNumbersResponse: &v1alphapb.ExtensionNumberResponse{ | ||
| BaseTypeName: mr.AllExtensionNumbersResponse.GetBaseTypeName(), | ||
| ExtensionNumber: mr.AllExtensionNumbersResponse.GetExtensionNumber(), | ||
| }, | ||
| } | ||
| } | ||
| case *v1pb.ServerReflectionResponse_ListServicesResponse: | ||
| if mr != nil { | ||
| svcs := make([]*v1alphapb.ServiceResponse, len(mr.ListServicesResponse.GetService())) | ||
| for i, svc := range mr.ListServicesResponse.GetService() { | ||
| svcs[i] = &v1alphapb.ServiceResponse{ | ||
| Name: svc.GetName(), | ||
| } | ||
| } | ||
| v1alpha.MessageResponse = &v1alphapb.ServerReflectionResponse_ListServicesResponse{ | ||
| ListServicesResponse: &v1alphapb.ListServiceResponse{ | ||
| Service: svcs, | ||
| }, | ||
| } | ||
| } | ||
| case *v1pb.ServerReflectionResponse_ErrorResponse: | ||
| if mr != nil { | ||
| v1alpha.MessageResponse = &v1alphapb.ServerReflectionResponse_ErrorResponse{ | ||
| ErrorResponse: &v1alphapb.ErrorResponse{ | ||
| ErrorCode: mr.ErrorResponse.GetErrorCode(), | ||
| ErrorMessage: mr.ErrorResponse.GetErrorMessage(), | ||
| }, | ||
| } | ||
| } | ||
| default: | ||
| // no value set | ||
| } | ||
| return &v1alpha | ||
| } | ||
|
|
||
| func v1AlphaToV1Request(v1alpha *v1alphapb.ServerReflectionRequest) *v1pb.ServerReflectionRequest { | ||
| var v1 v1pb.ServerReflectionRequest | ||
| v1.Host = v1alpha.Host | ||
| switch mr := v1alpha.MessageRequest.(type) { | ||
| case *v1alphapb.ServerReflectionRequest_FileByFilename: | ||
| v1.MessageRequest = &v1pb.ServerReflectionRequest_FileByFilename{ | ||
| FileByFilename: mr.FileByFilename, | ||
| } | ||
| case *v1alphapb.ServerReflectionRequest_FileContainingSymbol: | ||
| v1.MessageRequest = &v1pb.ServerReflectionRequest_FileContainingSymbol{ | ||
| FileContainingSymbol: mr.FileContainingSymbol, | ||
| } | ||
| case *v1alphapb.ServerReflectionRequest_FileContainingExtension: | ||
| if mr.FileContainingExtension != nil { | ||
| v1.MessageRequest = &v1pb.ServerReflectionRequest_FileContainingExtension{ | ||
| FileContainingExtension: &v1pb.ExtensionRequest{ | ||
| ContainingType: mr.FileContainingExtension.GetContainingType(), | ||
| ExtensionNumber: mr.FileContainingExtension.GetExtensionNumber(), | ||
| }, | ||
| } | ||
| } | ||
| case *v1alphapb.ServerReflectionRequest_AllExtensionNumbersOfType: | ||
| v1.MessageRequest = &v1pb.ServerReflectionRequest_AllExtensionNumbersOfType{ | ||
| AllExtensionNumbersOfType: mr.AllExtensionNumbersOfType, | ||
| } | ||
| case *v1alphapb.ServerReflectionRequest_ListServices: | ||
| v1.MessageRequest = &v1pb.ServerReflectionRequest_ListServices{ | ||
| ListServices: mr.ListServices, | ||
| } | ||
| default: | ||
| // no value set | ||
| } | ||
| return &v1 | ||
| } | ||
|
|
||
| func v1ToV1AlphaRequest(v1 *v1pb.ServerReflectionRequest) *v1alphapb.ServerReflectionRequest { | ||
| var v1alpha v1alphapb.ServerReflectionRequest | ||
| v1alpha.Host = v1.Host | ||
| switch mr := v1.MessageRequest.(type) { | ||
| case *v1pb.ServerReflectionRequest_FileByFilename: | ||
| if mr != nil { | ||
| v1alpha.MessageRequest = &v1alphapb.ServerReflectionRequest_FileByFilename{ | ||
| FileByFilename: mr.FileByFilename, | ||
| } | ||
| } | ||
| case *v1pb.ServerReflectionRequest_FileContainingSymbol: | ||
| if mr != nil { | ||
| v1alpha.MessageRequest = &v1alphapb.ServerReflectionRequest_FileContainingSymbol{ | ||
| FileContainingSymbol: mr.FileContainingSymbol, | ||
| } | ||
| } | ||
| case *v1pb.ServerReflectionRequest_FileContainingExtension: | ||
| if mr != nil { | ||
| v1alpha.MessageRequest = &v1alphapb.ServerReflectionRequest_FileContainingExtension{ | ||
| FileContainingExtension: &v1alphapb.ExtensionRequest{ | ||
| ContainingType: mr.FileContainingExtension.GetContainingType(), | ||
| ExtensionNumber: mr.FileContainingExtension.GetExtensionNumber(), | ||
| }, | ||
| } | ||
| } | ||
| case *v1pb.ServerReflectionRequest_AllExtensionNumbersOfType: | ||
| if mr != nil { | ||
| v1alpha.MessageRequest = &v1alphapb.ServerReflectionRequest_AllExtensionNumbersOfType{ | ||
| AllExtensionNumbersOfType: mr.AllExtensionNumbersOfType, | ||
| } | ||
| } | ||
| case *v1pb.ServerReflectionRequest_ListServices: | ||
| if mr != nil { | ||
| v1alpha.MessageRequest = &v1alphapb.ServerReflectionRequest_ListServices{ | ||
| ListServices: mr.ListServices, | ||
| } | ||
| } | ||
| default: | ||
| // no value set | ||
| } | ||
| return &v1alpha | ||
| } |
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