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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <utility>
#include "components/grpc_support/test/get_stream_engine.h"
#include "base/lazy_instance.h"
#include "base/memory/ref_counted.h"
#include "base/message_loop/message_pump_type.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/stringprintf.h"
#include "base/task/single_thread_task_runner.h"
#include "base/threading/thread.h"
#include "base/time/time.h"
#include "components/grpc_support/include/bidirectional_stream_c.h"
#include "net/base/host_port_pair.h"
#include "net/base/network_isolation_key.h"
#include "net/cert/mock_cert_verifier.h"
#include "net/dns/mapped_host_resolver.h"
#include "net/dns/mock_host_resolver.h"
#include "net/http/http_network_session.h"
#include "net/http/http_server_properties.h"
#include "net/test/cert_test_util.h"
#include "net/test/quic_simple_test_server.h"
#include "net/test/test_data_directory.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_builder.h"
#include "net/url_request/url_request_test_util.h"
namespace grpc_support {
namespace {
// URLRequestContextGetter for BidirectionalStreamTest. This is used instead of
// net::TestURLRequestContextGetter because the URLRequestContext needs to be
// created on the test_io_thread_ for the test, and TestURLRequestContextGetter
// does not allow for lazy instantiation of the URLRequestContext if additional
// setup is required.
class BidirectionalStreamTestURLRequestContextGetter
: public net::URLRequestContextGetter {
public:
explicit BidirectionalStreamTestURLRequestContextGetter(
const scoped_refptr<base::SingleThreadTaskRunner>& task_runner)
: task_runner_(task_runner) {}
BidirectionalStreamTestURLRequestContextGetter(
const BidirectionalStreamTestURLRequestContextGetter&) = delete;
BidirectionalStreamTestURLRequestContextGetter& operator=(
const BidirectionalStreamTestURLRequestContextGetter&) = delete;
net::URLRequestContext* GetURLRequestContext() override {
if (!request_context_) {
auto context_builder = net::CreateTestURLRequestContextBuilder();
auto mock_host_resolver = std::make_unique<net::MockHostResolver>();
auto host_resolver = std::make_unique<net::MappedHostResolver>(
std::move(mock_host_resolver));
auto test_cert = net::ImportCertFromFile(net::GetTestCertsDirectory(),
"quic-chain.pem");
auto mock_cert_verifier = std::make_unique<net::MockCertVerifier>();
net::CertVerifyResult verify_result;
verify_result.verified_cert = test_cert;
verify_result.is_issued_by_known_root = true;
mock_cert_verifier->AddResultForCert(test_cert, verify_result, net::OK);
net::HttpNetworkSessionParams params;
params.enable_quic = true;
params.enable_http2 = true;
context_builder->SetCertVerifier(std::move(mock_cert_verifier));
context_builder->set_host_resolver(std::move(host_resolver));
context_builder->set_http_network_session_params(params);
request_context_ = context_builder->Build();
UpdateHostResolverRules();
// Need to enable QUIC for the test server.
net::AlternativeService alternative_service(net::NextProto::kProtoQUIC,
"", 443);
url::SchemeHostPort quic_hint_server(
"https", net::QuicSimpleTestServer::GetHost(), 443);
request_context_->http_server_properties()->SetQuicAlternativeService(
quic_hint_server, net::NetworkAnonymizationKey(), alternative_service,
base::Time::Max(), quic::ParsedQuicVersionVector());
}
return request_context_.get();
}
net::MappedHostResolver* host_resolver() {
if (!request_context_) {
return nullptr;
}
// This is safe because we set a MappedHostResolver in
// GetURLRequestContext().
return static_cast<net::MappedHostResolver*>(
request_context_->host_resolver());
}
scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner()
const override {
return task_runner_;
}
void SetTestServerPort(int port) {
test_server_port_ = port;
UpdateHostResolverRules();
}
private:
void UpdateHostResolverRules() {
if (!host_resolver())
return;
host_resolver()->SetRulesFromString(
base::StringPrintf("MAP notfound.example.com ^NOTFOUND,"
"MAP test.example.com 127.0.0.1:%d",
test_server_port_));
}
~BidirectionalStreamTestURLRequestContextGetter() override = default;
int test_server_port_;
std::unique_ptr<net::URLRequestContext> request_context_;
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
};
class TestStreamEngineGetterImpl : public TestStreamEngineGetter {
public:
explicit TestStreamEngineGetterImpl(int port)
: thread_("grpc_support_test_io_thread") {
base::Thread::Options options;
options.message_pump_type = base::MessagePumpType::IO;
bool started = thread_.StartWithOptions(std::move(options));
CHECK(started);
request_context_getter_ =
base::MakeRefCounted<BidirectionalStreamTestURLRequestContextGetter>(
thread_.task_runner());
request_context_getter_->SetTestServerPort(port);
engine_.obj = request_context_getter_.get();
}
~TestStreamEngineGetterImpl() override = default;
stream_engine* Get() override { return &engine_; }
private:
base::Thread thread_;
scoped_refptr<BidirectionalStreamTestURLRequestContextGetter>
request_context_getter_;
stream_engine engine_ = {};
};
} // namespace
// WARNING: An alternative implementation of Create() exists in
// //components/cronet/native/test/test_stream_engine.cc. They are never both
// linked into the same binary.
// static
std::unique_ptr<TestStreamEngineGetter> TestStreamEngineGetter::Create(
int port) {
return std::make_unique<TestStreamEngineGetterImpl>(port);
}
} // namespace grpc_support
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