1 // 2 // Copyright 2020 gRPC authors. 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #ifndef GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_EXTERNAL_FILE_EXTERNAL_ACCOUNT_CREDENTIALS_H 18 #define GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_EXTERNAL_FILE_EXTERNAL_ACCOUNT_CREDENTIALS_H 19 20 #include <grpc/support/port_platform.h> 21 22 #include <functional> 23 #include <string> 24 #include <vector> 25 26 #include "absl/strings/string_view.h" 27 #include "src/core/lib/iomgr/error.h" 28 #include "src/core/lib/security/credentials/external/external_account_credentials.h" 29 #include "src/core/util/ref_counted_ptr.h" 30 31 namespace grpc_core { 32 33 class FileExternalAccountCredentials final : public ExternalAccountCredentials { 34 public: 35 static absl::StatusOr<RefCountedPtr<FileExternalAccountCredentials>> Create( 36 Options options, std::vector<std::string> scopes, 37 std::shared_ptr<grpc_event_engine::experimental::EventEngine> 38 event_engine = nullptr); 39 40 FileExternalAccountCredentials( 41 Options options, std::vector<std::string> scopes, 42 std::shared_ptr<grpc_event_engine::experimental::EventEngine> 43 event_engine, 44 grpc_error_handle* error); 45 46 std::string debug_string() override; 47 48 static UniqueTypeName Type(); 49 type()50 UniqueTypeName type() const override { return Type(); } 51 52 private: 53 class FileFetchBody final : public FetchBody { 54 public: 55 FileFetchBody(absl::AnyInvocable<void(absl::StatusOr<std::string>)> on_done, 56 FileExternalAccountCredentials* creds); 57 58 private: Shutdown()59 void Shutdown() override {} 60 61 void ReadFile(); 62 63 FileExternalAccountCredentials* creds_; 64 }; 65 66 OrphanablePtr<FetchBody> RetrieveSubjectToken( 67 Timestamp deadline, 68 absl::AnyInvocable<void(absl::StatusOr<std::string>)> on_done) override; 69 70 absl::string_view CredentialSourceType() override; 71 72 // Fields of credential source 73 std::string file_; 74 std::string format_type_; 75 std::string format_subject_token_field_name_; 76 }; 77 78 } // namespace grpc_core 79 80 #endif // GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_EXTERNAL_FILE_EXTERNAL_ACCOUNT_CREDENTIALS_H 81