1 /* 2 * 3 * Copyright 2015 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #ifndef GRPC_TEST_CPP_INTEROP_CLIENT_HELPER_H 20 #define GRPC_TEST_CPP_INTEROP_CLIENT_HELPER_H 21 22 #include <functional> 23 #include <memory> 24 #include <unordered_map> 25 26 #include <grpcpp/channel.h> 27 #include <grpcpp/client_context.h> 28 29 #include "src/core/lib/surface/call_test_only.h" 30 #include "src/core/lib/transport/byte_stream.h" 31 32 namespace grpc { 33 namespace testing { 34 35 std::string GetServiceAccountJsonKey(); 36 37 std::string GetOauth2AccessToken(); 38 39 void UpdateActions( 40 std::unordered_map<std::string, std::function<bool()>>* actions); 41 42 std::shared_ptr<Channel> CreateChannelForTestCase( 43 const std::string& test_case, 44 std::vector< 45 std::unique_ptr<experimental::ClientInterceptorFactoryInterface>> 46 interceptor_creators = {}); 47 48 class InteropClientContextInspector { 49 public: InteropClientContextInspector(const::grpc::ClientContext & context)50 InteropClientContextInspector(const ::grpc::ClientContext& context) 51 : context_(context) {} 52 53 // Inspector methods, able to peek inside ClientContext, follow. GetCallCompressionAlgorithm()54 grpc_compression_algorithm GetCallCompressionAlgorithm() const { 55 return grpc_call_test_only_get_compression_algorithm(context_.call_); 56 } 57 WasCompressed()58 bool WasCompressed() const { 59 return (grpc_call_test_only_get_message_flags(context_.call_) & 60 GRPC_WRITE_INTERNAL_COMPRESS) || 61 (grpc_call_test_only_get_message_flags(context_.call_) & 62 GRPC_WRITE_INTERNAL_TEST_ONLY_WAS_COMPRESSED); 63 } 64 65 private: 66 const ::grpc::ClientContext& context_; 67 }; 68 69 class AdditionalMetadataInterceptor : public experimental::Interceptor { 70 public: AdditionalMetadataInterceptor(std::multimap<std::string,std::string> additional_metadata)71 AdditionalMetadataInterceptor( 72 std::multimap<std::string, std::string> additional_metadata) 73 : additional_metadata_(std::move(additional_metadata)) {} 74 Intercept(experimental::InterceptorBatchMethods * methods)75 void Intercept(experimental::InterceptorBatchMethods* methods) override { 76 if (methods->QueryInterceptionHookPoint( 77 experimental::InterceptionHookPoints::PRE_SEND_INITIAL_METADATA)) { 78 std::multimap<std::string, std::string>* metadata = 79 methods->GetSendInitialMetadata(); 80 for (const auto& entry : additional_metadata_) { 81 metadata->insert(entry); 82 } 83 } 84 methods->Proceed(); 85 } 86 87 private: 88 const std::multimap<std::string, std::string> additional_metadata_; 89 }; 90 91 class AdditionalMetadataInterceptorFactory 92 : public experimental::ClientInterceptorFactoryInterface { 93 public: AdditionalMetadataInterceptorFactory(std::multimap<std::string,std::string> additional_metadata)94 AdditionalMetadataInterceptorFactory( 95 std::multimap<std::string, std::string> additional_metadata) 96 : additional_metadata_(std::move(additional_metadata)) {} 97 CreateClientInterceptor(experimental::ClientRpcInfo *)98 experimental::Interceptor* CreateClientInterceptor( 99 experimental::ClientRpcInfo* /*info*/) override { 100 return new AdditionalMetadataInterceptor(additional_metadata_); 101 } 102 103 const std::multimap<std::string, std::string> additional_metadata_; 104 }; 105 106 } // namespace testing 107 } // namespace grpc 108 109 #endif // GRPC_TEST_CPP_INTEROP_CLIENT_HELPER_H 110