Initial checkin of gRPC to third_party/

third_party/grpc/test/cpp/interop/server_main.cc

+/*
+ *
+ * Copyright 2015-2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <signal.h>
+#include <unistd.h>
+
+#include <fstream>
+#include <memory>
+#include <sstream>
+#include <thread>
+
+#include <gflags/gflags.h>
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/useful.h>
+#include <grpc++/server.h>
+#include <grpc++/server_builder.h>
+#include <grpc++/server_context.h>
+#include <grpc++/security/server_credentials.h>
+
+#include "test/cpp/interop/server_helper.h"
+#include "test/cpp/util/test_config.h"
+#include "src/proto/grpc/testing/test.grpc.pb.h"
+#include "src/proto/grpc/testing/empty.grpc.pb.h"
+#include "src/proto/grpc/testing/messages.grpc.pb.h"
+
+DEFINE_bool(use_tls, false, "Whether to use tls.");
+DEFINE_int32(port, 0, "Server port.");
+
+using grpc::Server;
+using grpc::ServerBuilder;
+using grpc::ServerContext;
+using grpc::ServerCredentials;
+using grpc::ServerReader;
+using grpc::ServerReaderWriter;
+using grpc::ServerWriter;
+using grpc::SslServerCredentialsOptions;
+using grpc::testing::InteropServerContextInspector;
+using grpc::testing::Payload;
+using grpc::testing::PayloadType;
+using grpc::testing::SimpleRequest;
+using grpc::testing::SimpleResponse;
+using grpc::testing::StreamingInputCallRequest;
+using grpc::testing::StreamingInputCallResponse;
+using grpc::testing::StreamingOutputCallRequest;
+using grpc::testing::StreamingOutputCallResponse;
+using grpc::testing::TestService;
+using grpc::Status;
+
+static bool got_sigint = false;
+static const char* kRandomFile = "test/cpp/interop/rnd.dat";
+
+const char kEchoInitialMetadataKey[] = "x-grpc-test-echo-initial";
+const char kEchoTrailingBinMetadataKey[] = "x-grpc-test-echo-trailing-bin";
+const char kEchoUserAgentKey[] = "x-grpc-test-echo-useragent";
+
+void MaybeEchoMetadata(ServerContext* context) {
+  const auto& client_metadata = context->client_metadata();
+  GPR_ASSERT(client_metadata.count(kEchoInitialMetadataKey) <= 1);
+  GPR_ASSERT(client_metadata.count(kEchoTrailingBinMetadataKey) <= 1);
+
+  auto iter = client_metadata.find(kEchoInitialMetadataKey);
+  if (iter != client_metadata.end()) {
+    context->AddInitialMetadata(kEchoInitialMetadataKey, iter->second.data());
+  }
+  iter = client_metadata.find(kEchoTrailingBinMetadataKey);
+  if (iter != client_metadata.end()) {
+    context->AddTrailingMetadata(
+        kEchoTrailingBinMetadataKey,
+        grpc::string(iter->second.begin(), iter->second.end()));
+  }
+  // Check if client sent a magic key in the header that makes us echo
+  // back the user-agent (for testing purpose)
+  iter = client_metadata.find(kEchoUserAgentKey);
+  if (iter != client_metadata.end()) {
+    iter = client_metadata.find("user-agent");
+    if (iter != client_metadata.end()) {
+      context->AddInitialMetadata(kEchoUserAgentKey, iter->second.data());
+    }
+  }
+}
+
+bool SetPayload(PayloadType type, int size, Payload* payload) {
+  PayloadType response_type;
+  if (type == PayloadType::RANDOM) {
+    response_type =
+        rand() & 0x1 ? PayloadType::COMPRESSABLE : PayloadType::UNCOMPRESSABLE;
+  } else {
+    response_type = type;
+  }
+  payload->set_type(response_type);
+  switch (response_type) {
+    case PayloadType::COMPRESSABLE: {
+      std::unique_ptr<char[]> body(new char[size]());
+      payload->set_body(body.get(), size);
+    } break;
+    case PayloadType::UNCOMPRESSABLE: {
+      std::unique_ptr<char[]> body(new char[size]());
+      std::ifstream rnd_file(kRandomFile);
+      GPR_ASSERT(rnd_file.good());
+      rnd_file.read(body.get(), size);
+      GPR_ASSERT(!rnd_file.eof());  // Requested more rnd bytes than available
+      payload->set_body(body.get(), size);
+    } break;
+    default:
+      GPR_ASSERT(false);
+  }
+  return true;
+}
+
+template <typename RequestType>
+void SetResponseCompression(ServerContext* context,
+                            const RequestType& request) {
+  switch (request.response_compression()) {
+    case grpc::testing::NONE:
+      context->set_compression_algorithm(GRPC_COMPRESS_NONE);
+      break;
+    case grpc::testing::GZIP:
+      context->set_compression_algorithm(GRPC_COMPRESS_GZIP);
+      break;
+    case grpc::testing::DEFLATE:
+      context->set_compression_algorithm(GRPC_COMPRESS_DEFLATE);
+      break;
+    default:
+      abort();
+  }
+}
+
+class TestServiceImpl : public TestService::Service {
+ public:
+  Status EmptyCall(ServerContext* context, const grpc::testing::Empty* request,
+                   grpc::testing::Empty* response) {
+    MaybeEchoMetadata(context);
+    return Status::OK;
+  }
+
+  Status UnaryCall(ServerContext* context, const SimpleRequest* request,
+                   SimpleResponse* response) {
+    MaybeEchoMetadata(context);
+    SetResponseCompression(context, *request);
+    if (request->response_size() > 0) {
+      if (!SetPayload(request->response_type(), request->response_size(),
+                      response->mutable_payload())) {
+        return Status(grpc::StatusCode::INTERNAL, "Error creating payload.");
+      }
+    }
+
+    if (request->has_response_status()) {
+      return Status(
+          static_cast<grpc::StatusCode>(request->response_status().code()),
+          request->response_status().message());
+    }
+
+    return Status::OK;
+  }
+
+  Status StreamingOutputCall(
+      ServerContext* context, const StreamingOutputCallRequest* request,
+      ServerWriter<StreamingOutputCallResponse>* writer) {
+    SetResponseCompression(context, *request);
+    StreamingOutputCallResponse response;
+    bool write_success = true;
+    for (int i = 0; write_success && i < request->response_parameters_size();
+         i++) {
+      if (!SetPayload(request->response_type(),
+                      request->response_parameters(i).size(),
+                      response.mutable_payload())) {
+        return Status(grpc::StatusCode::INTERNAL, "Error creating payload.");
+      }
+      write_success = writer->Write(response);
+    }
+    if (write_success) {
+      return Status::OK;
+    } else {
+      return Status(grpc::StatusCode::INTERNAL, "Error writing response.");
+    }
+  }
+
+  Status StreamingInputCall(ServerContext* context,
+                            ServerReader<StreamingInputCallRequest>* reader,
+                            StreamingInputCallResponse* response) {
+    StreamingInputCallRequest request;
+    int aggregated_payload_size = 0;
+    while (reader->Read(&request)) {
+      if (request.has_payload()) {
+        aggregated_payload_size += request.payload().body().size();
+      }
+    }
+    response->set_aggregated_payload_size(aggregated_payload_size);
+    return Status::OK;
+  }
+
+  Status FullDuplexCall(
+      ServerContext* context,
+      ServerReaderWriter<StreamingOutputCallResponse,
+                         StreamingOutputCallRequest>* stream) {
+    MaybeEchoMetadata(context);
+    StreamingOutputCallRequest request;
+    StreamingOutputCallResponse response;
+    bool write_success = true;
+    while (write_success && stream->Read(&request)) {
+      SetResponseCompression(context, request);
+      if (request.response_parameters_size() != 0) {
+        response.mutable_payload()->set_type(request.payload().type());
+        response.mutable_payload()->set_body(
+            grpc::string(request.response_parameters(0).size(), '\0'));
+        write_success = stream->Write(response);
+      }
+    }
+    if (write_success) {
+      return Status::OK;
+    } else {
+      return Status(grpc::StatusCode::INTERNAL, "Error writing response.");
+    }
+  }
+
+  Status HalfDuplexCall(
+      ServerContext* context,
+      ServerReaderWriter<StreamingOutputCallResponse,
+                         StreamingOutputCallRequest>* stream) {
+    std::vector<StreamingOutputCallRequest> requests;
+    StreamingOutputCallRequest request;
+    while (stream->Read(&request)) {
+      requests.push_back(request);
+    }
+
+    StreamingOutputCallResponse response;
+    bool write_success = true;
+    for (unsigned int i = 0; write_success && i < requests.size(); i++) {
+      response.mutable_payload()->set_type(requests[i].payload().type());
+      if (requests[i].response_parameters_size() == 0) {
+        return Status(grpc::StatusCode::INTERNAL,
+                      "Request does not have response parameters.");
+      }
+      response.mutable_payload()->set_body(
+          grpc::string(requests[i].response_parameters(0).size(), '\0'));
+      write_success = stream->Write(response);
+    }
+    if (write_success) {
+      return Status::OK;
+    } else {
+      return Status(grpc::StatusCode::INTERNAL, "Error writing response.");
+    }
+  }
+};
+
+void RunServer() {
+  std::ostringstream server_address;
+  server_address << "0.0.0.0:" << FLAGS_port;
+  TestServiceImpl service;
+
+  SimpleRequest request;
+  SimpleResponse response;
+
+  ServerBuilder builder;
+  builder.RegisterService(&service);
+  std::shared_ptr<ServerCredentials> creds =
+      grpc::testing::CreateInteropServerCredentials();
+  builder.AddListeningPort(server_address.str(), creds);
+  std::unique_ptr<Server> server(builder.BuildAndStart());
+  gpr_log(GPR_INFO, "Server listening on %s", server_address.str().c_str());
+  while (!got_sigint) {
+    sleep(5);
+  }
+}
+
+static void sigint_handler(int x) { got_sigint = true; }
+
+int main(int argc, char** argv) {
+  grpc::testing::InitTest(&argc, &argv, true);
+  signal(SIGINT, sigint_handler);
+
+  GPR_ASSERT(FLAGS_port != 0);
+  RunServer();
+
+  return 0;
+}