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_URL_EXTERNAL_ACCOUNT_CREDENTIALS_H 18 #define GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_EXTERNAL_URL_EXTERNAL_ACCOUNT_CREDENTIALS_H 19 20 #include <grpc/support/port_platform.h> 21 22 #include <functional> 23 #include <map> 24 #include <string> 25 #include <vector> 26 27 #include "src/core/lib/gprpp/orphanable.h" 28 #include "src/core/lib/gprpp/ref_counted_ptr.h" 29 #include "src/core/lib/http/httpcli.h" 30 #include "src/core/lib/iomgr/error.h" 31 #include "src/core/lib/security/credentials/external/external_account_credentials.h" 32 #include "src/core/lib/uri/uri_parser.h" 33 34 namespace grpc_core { 35 36 class UrlExternalAccountCredentials final : public ExternalAccountCredentials { 37 public: 38 static RefCountedPtr<UrlExternalAccountCredentials> Create( 39 Options options, std::vector<std::string> scopes, 40 grpc_error_handle* error); 41 42 UrlExternalAccountCredentials(Options options, 43 std::vector<std::string> scopes, 44 grpc_error_handle* error); 45 46 private: 47 void RetrieveSubjectToken( 48 HTTPRequestContext* ctx, const Options& options, 49 std::function<void(std::string, grpc_error_handle)> cb) override; 50 51 static void OnRetrieveSubjectToken(void* arg, grpc_error_handle error); 52 void OnRetrieveSubjectTokenInternal(grpc_error_handle error); 53 54 void FinishRetrieveSubjectToken(std::string subject_token, 55 grpc_error_handle error); 56 57 // Fields of credential source 58 URI url_; 59 std::string url_full_path_; 60 std::map<std::string, std::string> headers_; 61 std::string format_type_; 62 std::string format_subject_token_field_name_; 63 64 OrphanablePtr<HttpRequest> http_request_; 65 HTTPRequestContext* ctx_ = nullptr; 66 std::function<void(std::string, grpc_error_handle)> cb_ = nullptr; 67 }; 68 69 } // namespace grpc_core 70 71 #endif // GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_EXTERNAL_URL_EXTERNAL_ACCOUNT_CREDENTIALS_H 72