3 * Copyright 2019 gRPC authors.
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
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #ifndef GRPCPP_SECURITY_ALTS_UTIL_H
20 #define GRPCPP_SECURITY_ALTS_UTIL_H
22 #include <grpc/grpc_security_constants.h>
23 #include <grpcpp/impl/codegen/status.h>
24 #include <grpcpp/security/alts_context.h>
25 #include <grpcpp/security/auth_context.h>
29 struct grpc_gcp_AltsContext;
32 namespace experimental {
34 // GetAltsContextFromAuthContext helps to get the AltsContext from AuthContext.
35 // If ALTS is not the transport security protocol used to establish the
36 // connection, this function will return nullptr.
37 std::unique_ptr<AltsContext> GetAltsContextFromAuthContext(
38 const std::shared_ptr<const AuthContext>& auth_context);
40 // This utility function performs ALTS client authorization check on server
41 // side, i.e., checks if the client identity matches one of the expected service
42 // accounts. It returns OK if client is authorized and an error otherwise.
43 grpc::Status AltsClientAuthzCheck(
44 const std::shared_ptr<const AuthContext>& auth_context,
45 const std::vector<std::string>& expected_service_accounts);
47 } // namespace experimental
50 #endif // GRPCPP_SECURITY_ALTS_UTIL_H