1*a6aa18fbSYabin Cui /*
2*a6aa18fbSYabin Cui * Copyright 2019 Google LLC.
3*a6aa18fbSYabin Cui * Licensed under the Apache License, Version 2.0 (the "License");
4*a6aa18fbSYabin Cui * you may not use this file except in compliance with the License.
5*a6aa18fbSYabin Cui * You may obtain a copy of the License at
6*a6aa18fbSYabin Cui *
7*a6aa18fbSYabin Cui * https://www.apache.org/licenses/LICENSE-2.0
8*a6aa18fbSYabin Cui *
9*a6aa18fbSYabin Cui * Unless required by applicable law or agreed to in writing, software
10*a6aa18fbSYabin Cui * distributed under the License is distributed on an "AS IS" BASIS,
11*a6aa18fbSYabin Cui * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12*a6aa18fbSYabin Cui * See the License for the specific language governing permissions and
13*a6aa18fbSYabin Cui * limitations under the License.
14*a6aa18fbSYabin Cui */
15*a6aa18fbSYabin Cui
16*a6aa18fbSYabin Cui #include <iostream>
17*a6aa18fbSYabin Cui #include <memory>
18*a6aa18fbSYabin Cui #include <ostream>
19*a6aa18fbSYabin Cui #include <string>
20*a6aa18fbSYabin Cui #include <thread> // NOLINT
21*a6aa18fbSYabin Cui #include <utility>
22*a6aa18fbSYabin Cui
23*a6aa18fbSYabin Cui #include "absl/flags/flag.h"
24*a6aa18fbSYabin Cui #include "absl/flags/parse.h"
25*a6aa18fbSYabin Cui #include "include/grpc/grpc_security_constants.h"
26*a6aa18fbSYabin Cui #include "include/grpcpp/grpcpp.h"
27*a6aa18fbSYabin Cui #include "include/grpcpp/security/server_credentials.h"
28*a6aa18fbSYabin Cui #include "include/grpcpp/server_builder.h"
29*a6aa18fbSYabin Cui #include "include/grpcpp/server_context.h"
30*a6aa18fbSYabin Cui #include "include/grpcpp/support/status.h"
31*a6aa18fbSYabin Cui #include "private_join_and_compute/data_util.h"
32*a6aa18fbSYabin Cui #include "private_join_and_compute/private_join_and_compute.grpc.pb.h"
33*a6aa18fbSYabin Cui #include "private_join_and_compute/private_join_and_compute_rpc_impl.h"
34*a6aa18fbSYabin Cui #include "private_join_and_compute/protocol_server.h"
35*a6aa18fbSYabin Cui #include "private_join_and_compute/server_impl.h"
36*a6aa18fbSYabin Cui
37*a6aa18fbSYabin Cui ABSL_FLAG(std::string, port, "0.0.0.0:10501", "Port on which to listen");
38*a6aa18fbSYabin Cui ABSL_FLAG(std::string, server_data_file, "",
39*a6aa18fbSYabin Cui "The file from which to read the server database.");
40*a6aa18fbSYabin Cui
RunServer()41*a6aa18fbSYabin Cui int RunServer() {
42*a6aa18fbSYabin Cui std::cout << "Server: loading data... " << std::endl;
43*a6aa18fbSYabin Cui auto maybe_server_identifiers =
44*a6aa18fbSYabin Cui ::private_join_and_compute::ReadServerDatasetFromFile(
45*a6aa18fbSYabin Cui absl::GetFlag(FLAGS_server_data_file));
46*a6aa18fbSYabin Cui if (!maybe_server_identifiers.ok()) {
47*a6aa18fbSYabin Cui std::cerr << "RunServer: failed " << maybe_server_identifiers.status()
48*a6aa18fbSYabin Cui << std::endl;
49*a6aa18fbSYabin Cui return 1;
50*a6aa18fbSYabin Cui }
51*a6aa18fbSYabin Cui
52*a6aa18fbSYabin Cui ::private_join_and_compute::Context context;
53*a6aa18fbSYabin Cui std::unique_ptr<::private_join_and_compute::ProtocolServer> server =
54*a6aa18fbSYabin Cui std::make_unique<
55*a6aa18fbSYabin Cui ::private_join_and_compute::PrivateIntersectionSumProtocolServerImpl>(
56*a6aa18fbSYabin Cui &context, std::move(maybe_server_identifiers.value()));
57*a6aa18fbSYabin Cui ::private_join_and_compute::PrivateJoinAndComputeRpcImpl service(
58*a6aa18fbSYabin Cui std::move(server));
59*a6aa18fbSYabin Cui
60*a6aa18fbSYabin Cui ::grpc::ServerBuilder builder;
61*a6aa18fbSYabin Cui // Consider grpc::SslServerCredentials if not running locally.
62*a6aa18fbSYabin Cui builder.AddListeningPort(absl::GetFlag(FLAGS_port),
63*a6aa18fbSYabin Cui ::grpc::experimental::LocalServerCredentials(
64*a6aa18fbSYabin Cui grpc_local_connect_type::LOCAL_TCP));
65*a6aa18fbSYabin Cui builder.RegisterService(&service);
66*a6aa18fbSYabin Cui std::unique_ptr<::grpc::Server> grpc_server(builder.BuildAndStart());
67*a6aa18fbSYabin Cui
68*a6aa18fbSYabin Cui // Run the server on a background thread.
69*a6aa18fbSYabin Cui std::thread grpc_server_thread(
70*a6aa18fbSYabin Cui [](::grpc::Server* grpc_server_ptr) {
71*a6aa18fbSYabin Cui std::cout << "Server: listening on " << absl::GetFlag(FLAGS_port)
72*a6aa18fbSYabin Cui << std::endl;
73*a6aa18fbSYabin Cui grpc_server_ptr->Wait();
74*a6aa18fbSYabin Cui },
75*a6aa18fbSYabin Cui grpc_server.get());
76*a6aa18fbSYabin Cui
77*a6aa18fbSYabin Cui while (!service.protocol_finished()) {
78*a6aa18fbSYabin Cui // Wait for the server to be done, and then shut the server down.
79*a6aa18fbSYabin Cui }
80*a6aa18fbSYabin Cui
81*a6aa18fbSYabin Cui // Shut down server.
82*a6aa18fbSYabin Cui grpc_server->Shutdown();
83*a6aa18fbSYabin Cui grpc_server_thread.join();
84*a6aa18fbSYabin Cui std::cout << "Server completed protocol and shut down." << std::endl;
85*a6aa18fbSYabin Cui
86*a6aa18fbSYabin Cui return 0;
87*a6aa18fbSYabin Cui }
88*a6aa18fbSYabin Cui
main(int argc,char ** argv)89*a6aa18fbSYabin Cui int main(int argc, char** argv) {
90*a6aa18fbSYabin Cui absl::ParseCommandLine(argc, argv);
91*a6aa18fbSYabin Cui
92*a6aa18fbSYabin Cui return RunServer();
93*a6aa18fbSYabin Cui }
94