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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
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567 lines
21 KiB
567 lines
21 KiB
/* |
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* |
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* Copyright 2018 gRPC authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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#include <memory> |
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#include <vector> |
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#include <grpcpp/channel.h> |
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#include <grpcpp/client_context.h> |
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#include <grpcpp/create_channel.h> |
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#include <grpcpp/generic/generic_stub.h> |
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#include <grpcpp/impl/codegen/client_interceptor.h> |
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#include <grpcpp/impl/codegen/proto_utils.h> |
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#include <grpcpp/server.h> |
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#include <grpcpp/server_builder.h> |
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#include <grpcpp/server_context.h> |
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#include "src/proto/grpc/testing/echo.grpc.pb.h" |
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#include "test/core/util/port.h" |
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#include "test/core/util/test_config.h" |
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#include "test/cpp/end2end/test_service_impl.h" |
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#include "test/cpp/util/byte_buffer_proto_helper.h" |
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#include <gtest/gtest.h> |
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namespace grpc { |
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namespace testing { |
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namespace { |
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class ClientInterceptorsEnd2endTest : public ::testing::Test { |
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protected: |
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ClientInterceptorsEnd2endTest() { |
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int port = grpc_pick_unused_port_or_die(); |
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ServerBuilder builder; |
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server_address_ = "localhost:" + std::to_string(port); |
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builder.AddListeningPort(server_address_, InsecureServerCredentials()); |
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builder.RegisterService(&service_); |
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server_ = builder.BuildAndStart(); |
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} |
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~ClientInterceptorsEnd2endTest() { server_->Shutdown(); } |
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std::string server_address_; |
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TestServiceImpl service_; |
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std::unique_ptr<Server> server_; |
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}; |
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/* This interceptor does nothing. Just keeps a global count on the number of |
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* times it was invoked. */ |
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class DummyInterceptor : public experimental::Interceptor { |
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public: |
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DummyInterceptor(experimental::ClientRpcInfo* info) {} |
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virtual void Intercept(experimental::InterceptorBatchMethods* methods) { |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_SEND_INITIAL_METADATA)) { |
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num_times_run_++; |
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} else if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints:: |
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POST_RECV_INITIAL_METADATA)) { |
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num_times_run_reverse_++; |
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} |
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methods->Proceed(); |
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} |
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static void Reset() { |
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num_times_run_.store(0); |
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num_times_run_reverse_.store(0); |
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} |
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static int GetNumTimesRun() { |
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EXPECT_EQ(num_times_run_.load(), num_times_run_reverse_.load()); |
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return num_times_run_.load(); |
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} |
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private: |
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static std::atomic<int> num_times_run_; |
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static std::atomic<int> num_times_run_reverse_; |
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}; |
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std::atomic<int> DummyInterceptor::num_times_run_; |
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std::atomic<int> DummyInterceptor::num_times_run_reverse_; |
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class DummyInterceptorFactory |
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: public experimental::ClientInterceptorFactoryInterface { |
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public: |
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virtual experimental::Interceptor* CreateClientInterceptor( |
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experimental::ClientRpcInfo* info) override { |
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return new DummyInterceptor(info); |
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} |
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}; |
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/* Hijacks Echo RPC and fills in the expected values */ |
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class HijackingInterceptor : public experimental::Interceptor { |
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public: |
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HijackingInterceptor(experimental::ClientRpcInfo* info) { |
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info_ = info; |
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// Make sure it is the right method |
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EXPECT_EQ(strcmp("/grpc.testing.EchoTestService/Echo", info->method()), 0); |
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} |
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virtual void Intercept(experimental::InterceptorBatchMethods* methods) { |
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gpr_log(GPR_ERROR, "ran this"); |
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bool hijack = false; |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_SEND_INITIAL_METADATA)) { |
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auto* map = methods->GetSendInitialMetadata(); |
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// Check that we can see the test metadata |
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ASSERT_EQ(map->size(), 1); |
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auto iterator = map->begin(); |
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EXPECT_EQ("testkey", iterator->first); |
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EXPECT_EQ("testvalue", iterator->second); |
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hijack = true; |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_SEND_MESSAGE)) { |
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EchoRequest req; |
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auto* buffer = methods->GetSendMessage(); |
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auto copied_buffer = *buffer; |
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SerializationTraits<EchoRequest>::Deserialize(&copied_buffer, &req); |
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EXPECT_EQ(req.message(), "Hello"); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_SEND_CLOSE)) { |
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// Got nothing to do here for now |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::POST_RECV_INITIAL_METADATA)) { |
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auto* map = methods->GetRecvInitialMetadata(); |
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// Got nothing better to do here for now |
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EXPECT_EQ(map->size(), 0); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::POST_RECV_MESSAGE)) { |
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EchoResponse* resp = |
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static_cast<EchoResponse*>(methods->GetRecvMessage()); |
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// Check that we got the hijacked message, and re-insert the expected |
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// message |
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EXPECT_EQ(resp->message(), "Hello1"); |
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resp->set_message("Hello"); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::POST_RECV_STATUS)) { |
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auto* map = methods->GetRecvTrailingMetadata(); |
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bool found = false; |
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// Check that we received the metadata as an echo |
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for (const auto& pair : *map) { |
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found = pair.first.starts_with("testkey") && |
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pair.second.starts_with("testvalue"); |
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if (found) break; |
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} |
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EXPECT_EQ(found, true); |
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auto* status = methods->GetRecvStatus(); |
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EXPECT_EQ(status->ok(), true); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_RECV_INITIAL_METADATA)) { |
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auto* map = methods->GetRecvInitialMetadata(); |
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// Got nothing better to do here at the moment |
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EXPECT_EQ(map->size(), 0); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_RECV_MESSAGE)) { |
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// Insert a different message than expected |
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EchoResponse* resp = |
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static_cast<EchoResponse*>(methods->GetRecvMessage()); |
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resp->set_message("Hello1"); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_RECV_STATUS)) { |
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auto* map = methods->GetRecvTrailingMetadata(); |
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// insert the metadata that we want |
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EXPECT_EQ(map->size(), 0); |
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map->insert(std::make_pair("testkey", "testvalue")); |
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auto* status = methods->GetRecvStatus(); |
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*status = Status(StatusCode::OK, ""); |
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} |
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if (hijack) { |
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methods->Hijack(); |
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} else { |
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methods->Proceed(); |
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} |
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} |
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private: |
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experimental::ClientRpcInfo* info_; |
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}; |
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class HijackingInterceptorFactory |
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: public experimental::ClientInterceptorFactoryInterface { |
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public: |
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virtual experimental::Interceptor* CreateClientInterceptor( |
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experimental::ClientRpcInfo* info) override { |
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return new HijackingInterceptor(info); |
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} |
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}; |
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class HijackingInterceptorMakesAnotherCall : public experimental::Interceptor { |
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public: |
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HijackingInterceptorMakesAnotherCall(experimental::ClientRpcInfo* info) { |
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info_ = info; |
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// Make sure it is the right method |
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EXPECT_EQ(strcmp("/grpc.testing.EchoTestService/Echo", info->method()), 0); |
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} |
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virtual void Intercept(experimental::InterceptorBatchMethods* methods) { |
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gpr_log(GPR_ERROR, "ran this"); |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_SEND_INITIAL_METADATA)) { |
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auto* map = methods->GetSendInitialMetadata(); |
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// Check that we can see the test metadata |
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ASSERT_EQ(map->size(), 1); |
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auto iterator = map->begin(); |
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EXPECT_EQ("testkey", iterator->first); |
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EXPECT_EQ("testvalue", iterator->second); |
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// Make a copy of the map |
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metadata_map_ = *map; |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_SEND_MESSAGE)) { |
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EchoRequest req; |
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auto* buffer = methods->GetSendMessage(); |
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auto copied_buffer = *buffer; |
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SerializationTraits<EchoRequest>::Deserialize(&copied_buffer, &req); |
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EXPECT_EQ(req.message(), "Hello"); |
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req_ = req; |
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auto stub = grpc::testing::EchoTestService::NewStub( |
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methods->GetInterceptedChannel()); |
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ctx_.AddMetadata(metadata_map_.begin()->first, |
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metadata_map_.begin()->second); |
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stub->experimental_async()->Echo(&ctx_, &req_, &resp_, |
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[this, &methods](Status s) { |
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EXPECT_EQ(s.ok(), true); |
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EXPECT_EQ(resp_.message(), "Hello"); |
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methods->Hijack(); |
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}); |
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// There isn't going to be any other interesting operation in this batch, |
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// so it is fine to return |
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return; |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_SEND_CLOSE)) { |
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// Got nothing to do here for now |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::POST_RECV_INITIAL_METADATA)) { |
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auto* map = methods->GetRecvInitialMetadata(); |
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// Got nothing better to do here for now |
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EXPECT_EQ(map->size(), 0); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::POST_RECV_MESSAGE)) { |
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EchoResponse* resp = |
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static_cast<EchoResponse*>(methods->GetRecvMessage()); |
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// Check that we got the hijacked message, and re-insert the expected |
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// message |
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EXPECT_EQ(resp->message(), "Hello"); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::POST_RECV_STATUS)) { |
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auto* map = methods->GetRecvTrailingMetadata(); |
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bool found = false; |
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// Check that we received the metadata as an echo |
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for (const auto& pair : *map) { |
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found = pair.first.starts_with("testkey") && |
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pair.second.starts_with("testvalue"); |
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if (found) break; |
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} |
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EXPECT_EQ(found, true); |
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auto* status = methods->GetRecvStatus(); |
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EXPECT_EQ(status->ok(), true); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_RECV_INITIAL_METADATA)) { |
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auto* map = methods->GetRecvInitialMetadata(); |
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// Got nothing better to do here at the moment |
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EXPECT_EQ(map->size(), 0); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_RECV_MESSAGE)) { |
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// Insert a different message than expected |
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EchoResponse* resp = |
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static_cast<EchoResponse*>(methods->GetRecvMessage()); |
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resp->set_message(resp_.message()); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_RECV_STATUS)) { |
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auto* map = methods->GetRecvTrailingMetadata(); |
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// insert the metadata that we want |
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EXPECT_EQ(map->size(), 0); |
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*map = ctx_.GetServerTrailingMetadata(); |
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auto* status = methods->GetRecvStatus(); |
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*status = Status(StatusCode::OK, ""); |
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} |
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methods->Proceed(); |
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} |
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private: |
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experimental::ClientRpcInfo* info_; |
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std::multimap<grpc::string, grpc::string> metadata_map_; |
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ClientContext ctx_; |
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EchoRequest req_; |
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EchoResponse resp_; |
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}; |
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class HijackingInterceptorMakesAnotherCallFactory |
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: public experimental::ClientInterceptorFactoryInterface { |
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public: |
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virtual experimental::Interceptor* CreateClientInterceptor( |
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experimental::ClientRpcInfo* info) override { |
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return new HijackingInterceptorMakesAnotherCall(info); |
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} |
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}; |
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class LoggingInterceptor : public experimental::Interceptor { |
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public: |
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LoggingInterceptor(experimental::ClientRpcInfo* info) { |
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info_ = info; |
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// Make sure it is the right method |
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EXPECT_EQ(strcmp("/grpc.testing.EchoTestService/Echo", info->method()), 0); |
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} |
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virtual void Intercept(experimental::InterceptorBatchMethods* methods) { |
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gpr_log(GPR_ERROR, "ran this"); |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_SEND_INITIAL_METADATA)) { |
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auto* map = methods->GetSendInitialMetadata(); |
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// Check that we can see the test metadata |
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ASSERT_EQ(map->size(), 1); |
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auto iterator = map->begin(); |
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EXPECT_EQ("testkey", iterator->first); |
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EXPECT_EQ("testvalue", iterator->second); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_SEND_MESSAGE)) { |
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EchoRequest req; |
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auto* buffer = methods->GetSendMessage(); |
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auto copied_buffer = *buffer; |
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SerializationTraits<EchoRequest>::Deserialize(&copied_buffer, &req); |
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EXPECT_EQ(req.message(), "Hello"); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::PRE_SEND_CLOSE)) { |
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// Got nothing to do here for now |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::POST_RECV_INITIAL_METADATA)) { |
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auto* map = methods->GetRecvInitialMetadata(); |
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// Got nothing better to do here for now |
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EXPECT_EQ(map->size(), 0); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::POST_RECV_MESSAGE)) { |
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EchoResponse* resp = |
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static_cast<EchoResponse*>(methods->GetRecvMessage()); |
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EXPECT_EQ(resp->message(), "Hello"); |
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} |
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if (methods->QueryInterceptionHookPoint( |
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experimental::InterceptionHookPoints::POST_RECV_STATUS)) { |
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auto* map = methods->GetRecvTrailingMetadata(); |
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bool found = false; |
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// Check that we received the metadata as an echo |
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for (const auto& pair : *map) { |
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found = pair.first.starts_with("testkey") && |
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pair.second.starts_with("testvalue"); |
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if (found) break; |
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} |
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EXPECT_EQ(found, true); |
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auto* status = methods->GetRecvStatus(); |
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EXPECT_EQ(status->ok(), true); |
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} |
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methods->Proceed(); |
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} |
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private: |
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experimental::ClientRpcInfo* info_; |
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}; |
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class LoggingInterceptorFactory |
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: public experimental::ClientInterceptorFactoryInterface { |
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public: |
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virtual experimental::Interceptor* CreateClientInterceptor( |
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experimental::ClientRpcInfo* info) override { |
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return new LoggingInterceptor(info); |
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} |
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}; |
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void MakeCall(std::shared_ptr<Channel> channel) { |
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auto stub = grpc::testing::EchoTestService::NewStub(channel); |
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ClientContext ctx; |
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EchoRequest req; |
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req.mutable_param()->set_echo_metadata(true); |
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ctx.AddMetadata("testkey", "testvalue"); |
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req.set_message("Hello"); |
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EchoResponse resp; |
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Status s = stub->Echo(&ctx, req, &resp); |
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EXPECT_EQ(s.ok(), true); |
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EXPECT_EQ(resp.message(), "Hello"); |
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} |
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void MakeCallbackCall(std::shared_ptr<Channel> channel) { |
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auto stub = grpc::testing::EchoTestService::NewStub(channel); |
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ClientContext ctx; |
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EchoRequest req; |
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std::mutex mu; |
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std::condition_variable cv; |
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bool done = false; |
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req.mutable_param()->set_echo_metadata(true); |
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ctx.AddMetadata("testkey", "testvalue"); |
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req.set_message("Hello"); |
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EchoResponse resp; |
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stub->experimental_async()->Echo(&ctx, &req, &resp, |
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[&resp, &mu, &done, &cv](Status s) { |
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gpr_log(GPR_ERROR, "got the callback"); |
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EXPECT_EQ(s.ok(), true); |
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EXPECT_EQ(resp.message(), "Hello"); |
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std::lock_guard<std::mutex> l(mu); |
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done = true; |
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cv.notify_one(); |
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}); |
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std::unique_lock<std::mutex> l(mu); |
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while (!done) { |
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cv.wait(l); |
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} |
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} |
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TEST_F(ClientInterceptorsEnd2endTest, ClientInterceptorLoggingTest) { |
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ChannelArguments args; |
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DummyInterceptor::Reset(); |
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auto creators = std::unique_ptr<std::vector< |
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>>( |
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new std::vector< |
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>()); |
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creators->push_back(std::unique_ptr<LoggingInterceptorFactory>( |
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new LoggingInterceptorFactory())); |
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// Add 20 dummy interceptors |
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for (auto i = 0; i < 20; i++) { |
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creators->push_back(std::unique_ptr<DummyInterceptorFactory>( |
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new DummyInterceptorFactory())); |
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} |
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auto channel = experimental::CreateCustomChannelWithInterceptors( |
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server_address_, InsecureChannelCredentials(), args, std::move(creators)); |
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MakeCall(channel); |
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// Make sure all 20 dummy interceptors were run |
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EXPECT_EQ(DummyInterceptor::GetNumTimesRun(), 20); |
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} |
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TEST_F(ClientInterceptorsEnd2endTest, ClientInterceptorHijackingTest) { |
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ChannelArguments args; |
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DummyInterceptor::Reset(); |
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auto creators = std::unique_ptr<std::vector< |
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>>( |
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new std::vector< |
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>()); |
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// Add 20 dummy interceptors before hijacking interceptor |
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for (auto i = 0; i < 20; i++) { |
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creators->push_back(std::unique_ptr<DummyInterceptorFactory>( |
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new DummyInterceptorFactory())); |
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} |
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creators->push_back(std::unique_ptr<HijackingInterceptorFactory>( |
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new HijackingInterceptorFactory())); |
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// Add 20 dummy interceptors after hijacking interceptor |
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for (auto i = 0; i < 20; i++) { |
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creators->push_back(std::unique_ptr<DummyInterceptorFactory>( |
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new DummyInterceptorFactory())); |
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} |
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auto channel = experimental::CreateCustomChannelWithInterceptors( |
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server_address_, InsecureChannelCredentials(), args, std::move(creators)); |
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MakeCall(channel); |
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// Make sure only 20 dummy interceptors were run |
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EXPECT_EQ(DummyInterceptor::GetNumTimesRun(), 20); |
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} |
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TEST_F(ClientInterceptorsEnd2endTest, ClientInterceptorLogThenHijackTest) { |
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ChannelArguments args; |
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auto creators = std::unique_ptr<std::vector< |
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>>( |
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new std::vector< |
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>()); |
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creators->push_back(std::unique_ptr<LoggingInterceptorFactory>( |
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new LoggingInterceptorFactory())); |
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creators->push_back(std::unique_ptr<HijackingInterceptorFactory>( |
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new HijackingInterceptorFactory())); |
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auto channel = experimental::CreateCustomChannelWithInterceptors( |
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server_address_, InsecureChannelCredentials(), args, std::move(creators)); |
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|
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MakeCall(channel); |
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} |
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TEST_F(ClientInterceptorsEnd2endTest, |
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ClientInterceptorHijackingMakesAnotherCallTest) { |
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ChannelArguments args; |
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DummyInterceptor::Reset(); |
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auto creators = std::unique_ptr<std::vector< |
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>>( |
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new std::vector< |
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>()); |
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// Add 5 dummy interceptors before hijacking interceptor |
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for (auto i = 0; i < 5; i++) { |
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creators->push_back(std::unique_ptr<DummyInterceptorFactory>( |
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new DummyInterceptorFactory())); |
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} |
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creators->push_back( |
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>( |
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new HijackingInterceptorMakesAnotherCallFactory())); |
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// Add 7 dummy interceptors after hijacking interceptor |
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for (auto i = 0; i < 7; i++) { |
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creators->push_back(std::unique_ptr<DummyInterceptorFactory>( |
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new DummyInterceptorFactory())); |
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} |
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auto channel = experimental::CreateCustomChannelWithInterceptors( |
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server_address_, InsecureChannelCredentials(), args, std::move(creators)); |
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|
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MakeCall(channel); |
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// Make sure all interceptors were run once, since the hijacking interceptor |
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// makes an RPC on the intercepted channel |
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EXPECT_EQ(DummyInterceptor::GetNumTimesRun(), 12); |
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} |
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|
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TEST_F(ClientInterceptorsEnd2endTest, |
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ClientInterceptorLoggingTestWithCallback) { |
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ChannelArguments args; |
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DummyInterceptor::Reset(); |
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auto creators = std::unique_ptr<std::vector< |
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>>( |
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new std::vector< |
|
std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>()); |
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creators->push_back(std::unique_ptr<LoggingInterceptorFactory>( |
|
new LoggingInterceptorFactory())); |
|
// Add 20 dummy interceptors |
|
for (auto i = 0; i < 20; i++) { |
|
creators->push_back(std::unique_ptr<DummyInterceptorFactory>( |
|
new DummyInterceptorFactory())); |
|
} |
|
auto channel = experimental::CreateCustomChannelWithInterceptors( |
|
server_address_, InsecureChannelCredentials(), args, std::move(creators)); |
|
MakeCallbackCall(channel); |
|
// Make sure all 20 dummy interceptors were run |
|
EXPECT_EQ(DummyInterceptor::GetNumTimesRun(), 20); |
|
} |
|
|
|
} // namespace |
|
} // namespace testing |
|
} // namespace grpc |
|
|
|
int main(int argc, char** argv) { |
|
grpc_test_init(argc, argv); |
|
::testing::InitGoogleTest(&argc, argv); |
|
return RUN_ALL_TESTS(); |
|
}
|
|
|