1 /* 2 * 3 * Copyright 2018 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 #include <grpc/support/port_platform.h> 20 21 #include "src/core/ext/transport/chttp2/client/authority.h" 22 23 grpc_channel_args* grpc_default_authority_add_if_not_present( 24 const grpc_channel_args* args) { 25 const bool has_default_authority = 26 grpc_channel_args_find(args, GRPC_ARG_DEFAULT_AUTHORITY) != nullptr; 27 grpc_arg new_args[1]; 28 size_t num_new_args = 0; 29 grpc_core::UniquePtr<char> default_authority; 30 if (!has_default_authority) { 31 const grpc_arg* server_uri_arg = 32 grpc_channel_args_find(args, GRPC_ARG_SERVER_URI); 33 const char* server_uri_str = grpc_channel_arg_get_string(server_uri_arg); 34 GPR_ASSERT(server_uri_str != nullptr); 35 default_authority = 36 grpc_core::ResolverRegistry::GetDefaultAuthority(server_uri_str); 37 GPR_ASSERT(default_authority != nullptr); 38 new_args[num_new_args++] = grpc_channel_arg_string_create( 39 const_cast<char*>(GRPC_ARG_DEFAULT_AUTHORITY), default_authority.get()); 40 } 41 return grpc_channel_args_copy_and_add(args, new_args, num_new_args); 42 } 43
