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_INTERNAL_CPP_CLIENT_SECURE_CREDENTIALS_H 20 #define GRPC_INTERNAL_CPP_CLIENT_SECURE_CREDENTIALS_H 21 22 #include <grpc/grpc_security.h> 23 24 #include <grpcpp/security/credentials.h> 25 #include <grpcpp/support/config.h> 26 27 #include "src/cpp/server/thread_pool_interface.h" 28 29 namespace grpc { 30 31 class SecureChannelCredentials final : public ChannelCredentials { 32 public: 33 explicit SecureChannelCredentials(grpc_channel_credentials* c_creds); ~SecureChannelCredentials()34 ~SecureChannelCredentials() { grpc_channel_credentials_release(c_creds_); } GetRawCreds()35 grpc_channel_credentials* GetRawCreds() { return c_creds_; } 36 37 std::shared_ptr<grpc::Channel> CreateChannel( 38 const string& target, const grpc::ChannelArguments& args) override; AsSecureCredentials()39 SecureChannelCredentials* AsSecureCredentials() override { return this; } 40 41 private: 42 grpc_channel_credentials* const c_creds_; 43 }; 44 45 class SecureCallCredentials final : public CallCredentials { 46 public: 47 explicit SecureCallCredentials(grpc_call_credentials* c_creds); ~SecureCallCredentials()48 ~SecureCallCredentials() { grpc_call_credentials_release(c_creds_); } GetRawCreds()49 grpc_call_credentials* GetRawCreds() { return c_creds_; } 50 51 bool ApplyToCall(grpc_call* call) override; AsSecureCredentials()52 SecureCallCredentials* AsSecureCredentials() override { return this; } 53 54 private: 55 grpc_call_credentials* const c_creds_; 56 }; 57 58 class MetadataCredentialsPluginWrapper final : private GrpcLibraryCodegen { 59 public: 60 static void Destroy(void* wrapper); 61 static int GetMetadata( 62 void* wrapper, grpc_auth_metadata_context context, 63 grpc_credentials_plugin_metadata_cb cb, void* user_data, 64 grpc_metadata creds_md[GRPC_METADATA_CREDENTIALS_PLUGIN_SYNC_MAX], 65 size_t* num_creds_md, grpc_status_code* status, 66 const char** error_details); 67 68 explicit MetadataCredentialsPluginWrapper( 69 std::unique_ptr<MetadataCredentialsPlugin> plugin); 70 71 private: 72 void InvokePlugin( 73 grpc_auth_metadata_context context, 74 grpc_credentials_plugin_metadata_cb cb, void* user_data, 75 grpc_metadata creds_md[GRPC_METADATA_CREDENTIALS_PLUGIN_SYNC_MAX], 76 size_t* num_creds_md, grpc_status_code* status_code, 77 const char** error_details); 78 std::unique_ptr<ThreadPoolInterface> thread_pool_; 79 std::unique_ptr<MetadataCredentialsPlugin> plugin_; 80 }; 81 82 } // namespace grpc 83 84 #endif // GRPC_INTERNAL_CPP_CLIENT_SECURE_CREDENTIALS_H 85