mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
360 lines
13 KiB
360 lines
13 KiB
/* |
|
* |
|
* Copyright 2016 gRPC authors. |
|
* |
|
* Licensed under the Apache License, Version 2.0 (the "License"); |
|
* you may not use this file except in compliance with the License. |
|
* You may obtain a copy of the License at |
|
* |
|
* http://www.apache.org/licenses/LICENSE-2.0 |
|
* |
|
* Unless required by applicable law or agreed to in writing, software |
|
* distributed under the License is distributed on an "AS IS" BASIS, |
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
* See the License for the specific language governing permissions and |
|
* limitations under the License. |
|
* |
|
*/ |
|
|
|
#include "test/cpp/end2end/test_service_impl.h" |
|
|
|
#include <string> |
|
#include <thread> |
|
|
|
#include <grpc/support/log.h> |
|
#include <grpcpp/security/credentials.h> |
|
#include <grpcpp/server_context.h> |
|
|
|
#include "src/proto/grpc/testing/echo.grpc.pb.h" |
|
#include "test/cpp/util/string_ref_helper.h" |
|
|
|
#include <gtest/gtest.h> |
|
|
|
using std::chrono::system_clock; |
|
|
|
namespace grpc { |
|
namespace testing { |
|
namespace { |
|
|
|
// When echo_deadline is requested, deadline seen in the ServerContext is set in |
|
// the response in seconds. |
|
void MaybeEchoDeadline(ServerContext* context, const EchoRequest* request, |
|
EchoResponse* response) { |
|
if (request->has_param() && request->param().echo_deadline()) { |
|
gpr_timespec deadline = gpr_inf_future(GPR_CLOCK_REALTIME); |
|
if (context->deadline() != system_clock::time_point::max()) { |
|
Timepoint2Timespec(context->deadline(), &deadline); |
|
} |
|
response->mutable_param()->set_request_deadline(deadline.tv_sec); |
|
} |
|
} |
|
|
|
void CheckServerAuthContext( |
|
const ServerContext* context, |
|
const grpc::string& expected_transport_security_type, |
|
const grpc::string& expected_client_identity) { |
|
std::shared_ptr<const AuthContext> auth_ctx = context->auth_context(); |
|
std::vector<grpc::string_ref> tst = |
|
auth_ctx->FindPropertyValues("transport_security_type"); |
|
EXPECT_EQ(1u, tst.size()); |
|
EXPECT_EQ(expected_transport_security_type, ToString(tst[0])); |
|
if (expected_client_identity.empty()) { |
|
EXPECT_TRUE(auth_ctx->GetPeerIdentityPropertyName().empty()); |
|
EXPECT_TRUE(auth_ctx->GetPeerIdentity().empty()); |
|
EXPECT_FALSE(auth_ctx->IsPeerAuthenticated()); |
|
} else { |
|
auto identity = auth_ctx->GetPeerIdentity(); |
|
EXPECT_TRUE(auth_ctx->IsPeerAuthenticated()); |
|
EXPECT_EQ(1u, identity.size()); |
|
EXPECT_EQ(expected_client_identity, identity[0]); |
|
} |
|
} |
|
} // namespace |
|
|
|
Status TestServiceImpl::Echo(ServerContext* context, const EchoRequest* request, |
|
EchoResponse* response) { |
|
// A bit of sleep to make sure that short deadline tests fail |
|
if (request->has_param() && request->param().server_sleep_us() > 0) { |
|
gpr_sleep_until( |
|
gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), |
|
gpr_time_from_micros(request->param().server_sleep_us(), |
|
GPR_TIMESPAN))); |
|
} |
|
|
|
if (request->has_param() && request->param().server_die()) { |
|
gpr_log(GPR_ERROR, "The request should not reach application handler."); |
|
GPR_ASSERT(0); |
|
} |
|
if (request->has_param() && request->param().has_expected_error()) { |
|
const auto& error = request->param().expected_error(); |
|
return Status(static_cast<StatusCode>(error.code()), error.error_message(), |
|
error.binary_error_details()); |
|
} |
|
int server_try_cancel = GetIntValueFromMetadata( |
|
kServerTryCancelRequest, context->client_metadata(), DO_NOT_CANCEL); |
|
if (server_try_cancel > DO_NOT_CANCEL) { |
|
// Since this is a unary RPC, by the time this server handler is called, |
|
// the 'request' message is already read from the client. So the scenarios |
|
// in server_try_cancel don't make much sense. Just cancel the RPC as long |
|
// as server_try_cancel is not DO_NOT_CANCEL |
|
ServerTryCancel(context); |
|
return Status::CANCELLED; |
|
} |
|
|
|
response->set_message(request->message()); |
|
MaybeEchoDeadline(context, request, response); |
|
if (host_) { |
|
response->mutable_param()->set_host(*host_); |
|
} |
|
if (request->has_param() && request->param().client_cancel_after_us()) { |
|
{ |
|
std::unique_lock<std::mutex> lock(mu_); |
|
signal_client_ = true; |
|
} |
|
while (!context->IsCancelled()) { |
|
gpr_sleep_until(gpr_time_add( |
|
gpr_now(GPR_CLOCK_REALTIME), |
|
gpr_time_from_micros(request->param().client_cancel_after_us(), |
|
GPR_TIMESPAN))); |
|
} |
|
return Status::CANCELLED; |
|
} else if (request->has_param() && |
|
request->param().server_cancel_after_us()) { |
|
gpr_sleep_until(gpr_time_add( |
|
gpr_now(GPR_CLOCK_REALTIME), |
|
gpr_time_from_micros(request->param().server_cancel_after_us(), |
|
GPR_TIMESPAN))); |
|
return Status::CANCELLED; |
|
} else if (!request->has_param() || |
|
!request->param().skip_cancelled_check()) { |
|
EXPECT_FALSE(context->IsCancelled()); |
|
} |
|
|
|
if (request->has_param() && request->param().echo_metadata()) { |
|
const std::multimap<grpc::string_ref, grpc::string_ref>& client_metadata = |
|
context->client_metadata(); |
|
for (std::multimap<grpc::string_ref, grpc::string_ref>::const_iterator |
|
iter = client_metadata.begin(); |
|
iter != client_metadata.end(); ++iter) { |
|
context->AddTrailingMetadata(ToString(iter->first), |
|
ToString(iter->second)); |
|
} |
|
// Terminate rpc with error and debug info in trailer. |
|
if (request->param().debug_info().stack_entries_size() || |
|
!request->param().debug_info().detail().empty()) { |
|
grpc::string serialized_debug_info = |
|
request->param().debug_info().SerializeAsString(); |
|
context->AddTrailingMetadata(kDebugInfoTrailerKey, serialized_debug_info); |
|
return Status::CANCELLED; |
|
} |
|
} |
|
if (request->has_param() && |
|
(request->param().expected_client_identity().length() > 0 || |
|
request->param().check_auth_context())) { |
|
CheckServerAuthContext(context, |
|
request->param().expected_transport_security_type(), |
|
request->param().expected_client_identity()); |
|
} |
|
if (request->has_param() && request->param().response_message_length() > 0) { |
|
response->set_message( |
|
grpc::string(request->param().response_message_length(), '\0')); |
|
} |
|
if (request->has_param() && request->param().echo_peer()) { |
|
response->mutable_param()->set_peer(context->peer()); |
|
} |
|
return Status::OK; |
|
} |
|
|
|
// Unimplemented is left unimplemented to test the returned error. |
|
|
|
Status TestServiceImpl::RequestStream(ServerContext* context, |
|
ServerReader<EchoRequest>* reader, |
|
EchoResponse* response) { |
|
// If 'server_try_cancel' is set in the metadata, the RPC is cancelled by |
|
// the server by calling ServerContext::TryCancel() depending on the value: |
|
// CANCEL_BEFORE_PROCESSING: The RPC is cancelled before the server reads |
|
// any message from the client |
|
// CANCEL_DURING_PROCESSING: The RPC is cancelled while the server is |
|
// reading messages from the client |
|
// CANCEL_AFTER_PROCESSING: The RPC is cancelled after the server reads |
|
// all the messages from the client |
|
int server_try_cancel = GetIntValueFromMetadata( |
|
kServerTryCancelRequest, context->client_metadata(), DO_NOT_CANCEL); |
|
|
|
EchoRequest request; |
|
response->set_message(""); |
|
|
|
if (server_try_cancel == CANCEL_BEFORE_PROCESSING) { |
|
ServerTryCancel(context); |
|
return Status::CANCELLED; |
|
} |
|
|
|
std::thread* server_try_cancel_thd = nullptr; |
|
if (server_try_cancel == CANCEL_DURING_PROCESSING) { |
|
server_try_cancel_thd = |
|
new std::thread(&TestServiceImpl::ServerTryCancel, this, context); |
|
} |
|
|
|
int num_msgs_read = 0; |
|
while (reader->Read(&request)) { |
|
response->mutable_message()->append(request.message()); |
|
} |
|
gpr_log(GPR_INFO, "Read: %d messages", num_msgs_read); |
|
|
|
if (server_try_cancel_thd != nullptr) { |
|
server_try_cancel_thd->join(); |
|
delete server_try_cancel_thd; |
|
return Status::CANCELLED; |
|
} |
|
|
|
if (server_try_cancel == CANCEL_AFTER_PROCESSING) { |
|
ServerTryCancel(context); |
|
return Status::CANCELLED; |
|
} |
|
|
|
return Status::OK; |
|
} |
|
|
|
// Return 'kNumResponseStreamMsgs' messages. |
|
// TODO(yangg) make it generic by adding a parameter into EchoRequest |
|
Status TestServiceImpl::ResponseStream(ServerContext* context, |
|
const EchoRequest* request, |
|
ServerWriter<EchoResponse>* writer) { |
|
// If server_try_cancel is set in the metadata, the RPC is cancelled by the |
|
// server by calling ServerContext::TryCancel() depending on the value: |
|
// CANCEL_BEFORE_PROCESSING: The RPC is cancelled before the server writes |
|
// any messages to the client |
|
// CANCEL_DURING_PROCESSING: The RPC is cancelled while the server is |
|
// writing messages to the client |
|
// CANCEL_AFTER_PROCESSING: The RPC is cancelled after the server writes |
|
// all the messages to the client |
|
int server_try_cancel = GetIntValueFromMetadata( |
|
kServerTryCancelRequest, context->client_metadata(), DO_NOT_CANCEL); |
|
|
|
int server_coalescing_api = GetIntValueFromMetadata( |
|
kServerUseCoalescingApi, context->client_metadata(), 0); |
|
|
|
int server_responses_to_send = GetIntValueFromMetadata( |
|
kServerResponseStreamsToSend, context->client_metadata(), |
|
kServerDefaultResponseStreamsToSend); |
|
|
|
if (server_try_cancel == CANCEL_BEFORE_PROCESSING) { |
|
ServerTryCancel(context); |
|
return Status::CANCELLED; |
|
} |
|
|
|
EchoResponse response; |
|
std::thread* server_try_cancel_thd = nullptr; |
|
if (server_try_cancel == CANCEL_DURING_PROCESSING) { |
|
server_try_cancel_thd = |
|
new std::thread(&TestServiceImpl::ServerTryCancel, this, context); |
|
} |
|
|
|
for (int i = 0; i < server_responses_to_send; i++) { |
|
response.set_message(request->message() + grpc::to_string(i)); |
|
if (i == server_responses_to_send - 1 && server_coalescing_api != 0) { |
|
writer->WriteLast(response, WriteOptions()); |
|
} else { |
|
writer->Write(response); |
|
} |
|
} |
|
|
|
if (server_try_cancel_thd != nullptr) { |
|
server_try_cancel_thd->join(); |
|
delete server_try_cancel_thd; |
|
return Status::CANCELLED; |
|
} |
|
|
|
if (server_try_cancel == CANCEL_AFTER_PROCESSING) { |
|
ServerTryCancel(context); |
|
return Status::CANCELLED; |
|
} |
|
|
|
return Status::OK; |
|
} |
|
|
|
Status TestServiceImpl::BidiStream( |
|
ServerContext* context, |
|
ServerReaderWriter<EchoResponse, EchoRequest>* stream) { |
|
// If server_try_cancel is set in the metadata, the RPC is cancelled by the |
|
// server by calling ServerContext::TryCancel() depending on the value: |
|
// CANCEL_BEFORE_PROCESSING: The RPC is cancelled before the server reads/ |
|
// writes any messages from/to the client |
|
// CANCEL_DURING_PROCESSING: The RPC is cancelled while the server is |
|
// reading/writing messages from/to the client |
|
// CANCEL_AFTER_PROCESSING: The RPC is cancelled after the server |
|
// reads/writes all messages from/to the client |
|
int server_try_cancel = GetIntValueFromMetadata( |
|
kServerTryCancelRequest, context->client_metadata(), DO_NOT_CANCEL); |
|
|
|
EchoRequest request; |
|
EchoResponse response; |
|
|
|
if (server_try_cancel == CANCEL_BEFORE_PROCESSING) { |
|
ServerTryCancel(context); |
|
return Status::CANCELLED; |
|
} |
|
|
|
std::thread* server_try_cancel_thd = nullptr; |
|
if (server_try_cancel == CANCEL_DURING_PROCESSING) { |
|
server_try_cancel_thd = |
|
new std::thread(&TestServiceImpl::ServerTryCancel, this, context); |
|
} |
|
|
|
// kServerFinishAfterNReads suggests after how many reads, the server should |
|
// write the last message and send status (coalesced using WriteLast) |
|
int server_write_last = GetIntValueFromMetadata( |
|
kServerFinishAfterNReads, context->client_metadata(), 0); |
|
|
|
int read_counts = 0; |
|
while (stream->Read(&request)) { |
|
read_counts++; |
|
gpr_log(GPR_INFO, "recv msg %s", request.message().c_str()); |
|
response.set_message(request.message()); |
|
if (read_counts == server_write_last) { |
|
stream->WriteLast(response, WriteOptions()); |
|
} else { |
|
stream->Write(response); |
|
} |
|
} |
|
|
|
if (server_try_cancel_thd != nullptr) { |
|
server_try_cancel_thd->join(); |
|
delete server_try_cancel_thd; |
|
return Status::CANCELLED; |
|
} |
|
|
|
if (server_try_cancel == CANCEL_AFTER_PROCESSING) { |
|
ServerTryCancel(context); |
|
return Status::CANCELLED; |
|
} |
|
|
|
return Status::OK; |
|
} |
|
|
|
int TestServiceImpl::GetIntValueFromMetadata( |
|
const char* key, |
|
const std::multimap<grpc::string_ref, grpc::string_ref>& metadata, |
|
int default_value) { |
|
if (metadata.find(key) != metadata.end()) { |
|
std::istringstream iss(ToString(metadata.find(key)->second)); |
|
iss >> default_value; |
|
gpr_log(GPR_INFO, "%s : %d", key, default_value); |
|
} |
|
|
|
return default_value; |
|
} |
|
|
|
void TestServiceImpl::ServerTryCancel(ServerContext* context) { |
|
EXPECT_FALSE(context->IsCancelled()); |
|
context->TryCancel(); |
|
gpr_log(GPR_INFO, "Server called TryCancel() to cancel the request"); |
|
// Now wait until it's really canceled |
|
while (!context->IsCancelled()) { |
|
gpr_sleep_until(gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), |
|
gpr_time_from_micros(1000, GPR_TIMESPAN))); |
|
} |
|
} |
|
|
|
} // namespace testing |
|
} // namespace grpc
|
|
|