1 /*
2  *
3  * Copyright 2016 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 <grpcpp/security/credentials.h>
20 
21 #include <grpc/grpc_cronet.h>
22 #include <grpcpp/channel.h>
23 #include <grpcpp/support/channel_arguments.h>
24 #include "src/cpp/client/create_channel_internal.h"
25 
26 namespace grpc {
27 
28 class CronetChannelCredentialsImpl final : public ChannelCredentials {
29  public:
CronetChannelCredentialsImpl(void * engine)30   CronetChannelCredentialsImpl(void* engine) : engine_(engine) {}
31 
CreateChannelImpl(const string & target,const grpc::ChannelArguments & args)32   std::shared_ptr<grpc::Channel> CreateChannelImpl(
33       const string& target, const grpc::ChannelArguments& args) override {
34     return CreateChannelWithInterceptors(
35         target, args,
36         std::vector<std::unique_ptr<
37             experimental::ClientInterceptorFactoryInterface>>());
38   }
39 
AsSecureCredentials()40   SecureChannelCredentials* AsSecureCredentials() override { return nullptr; }
41 
42  private:
CreateChannelWithInterceptors(const string & target,const grpc::ChannelArguments & args,std::vector<std::unique_ptr<experimental::ClientInterceptorFactoryInterface>> interceptor_creators)43   std::shared_ptr<grpc::Channel> CreateChannelWithInterceptors(
44       const string& target, const grpc::ChannelArguments& args,
45       std::vector<
46           std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>
47           interceptor_creators) override {
48     grpc_channel_args channel_args;
49     args.SetChannelArgs(&channel_args);
50     return CreateChannelInternal(
51         "",
52         grpc_cronet_secure_channel_create(engine_, target.c_str(),
53                                           &channel_args, nullptr),
54         std::move(interceptor_creators));
55   }
56   void* engine_;
57 };
58 
CronetChannelCredentials(void * engine)59 std::shared_ptr<ChannelCredentials> CronetChannelCredentials(void* engine) {
60   return std::shared_ptr<ChannelCredentials>(
61       new grpc::CronetChannelCredentialsImpl(engine));
62 }
63 }  // namespace grpc
64