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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/updater/net/network.h"
#include <cstdint>
#include <memory>
#include <string>
#include "base/base_paths.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/functional/bind.h"
#include "base/memory/scoped_refptr.h"
#include "base/notreached.h"
#include "base/path_service.h"
#include "base/run_loop.h"
#include "base/strings/strcat.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/gmock_callback_support.h"
#include "base/test/task_environment.h"
#include "base/threading/thread_restrictions.h"
#include "build/build_config.h"
#include "chrome/updater/net/network.h"
#include "chrome/updater/policy/service.h"
#include "chrome/updater/test/unit_test_util.h"
#include "components/update_client/network.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "net/test/embedded_test_server/http_request.h"
#include "net/test/embedded_test_server/http_response.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
#if BUILDFLAG(IS_WIN)
#include <Urlmon.h>
#endif
namespace updater {
namespace {
using ::base::test::RunClosure;
using ResponseStartedCallback =
::update_client::NetworkFetcher::ResponseStartedCallback;
using ProgressCallback = ::update_client::NetworkFetcher::ProgressCallback;
using PostRequestCompleteCallback =
::update_client::NetworkFetcher::PostRequestCompleteCallback;
using DownloadToFileCompleteCallback =
::update_client::NetworkFetcher::DownloadToFileCompleteCallback;
class UpdaterNetworkTest : public ::testing::Test {
public:
void StartedCallback(int response_code, int64_t content_length) {
EXPECT_EQ(response_code, 200);
}
void ProgressCallback(int64_t current) {
EXPECT_GE(current, 0);
EXPECT_LE(current, 100);
}
void PostRequestCompleteCallback(const std::string& expected_body,
std::optional<std::string> response_body,
int net_error,
const std::string& header_etag,
const std::string& header_x_cup_server_proof,
const std::string& header_set_cookie,
int64_t xheader_retry_after_sec) {
EXPECT_EQ(*response_body, expected_body);
EXPECT_EQ(net_error, 0);
EXPECT_EQ(header_etag, "Wfhw789h");
EXPECT_EQ(header_x_cup_server_proof, "server-proof");
EXPECT_EQ(header_set_cookie, "cookie");
EXPECT_EQ(xheader_retry_after_sec, 67);
PostRequestCompleted();
}
void DownloadCallback(const base::FilePath& test_file_path,
int net_error,
int64_t content_size) {
EXPECT_EQ(net_error, 0);
EXPECT_GT(content_size, 0);
EXPECT_FALSE(test_file_path.empty());
DownloadToFileCompleted();
}
std::unique_ptr<net::test_server::HttpResponse> HandleRequest(
const net::test_server::HttpRequest& request) {
auto http_response =
std::make_unique<net::test_server::BasicHttpResponse>();
if (request.method == net::test_server::HttpMethod::METHOD_POST) {
// Echo the posted data back.
http_response->set_content(request.content);
http_response->AddCustomHeader("x-retry-after", "67");
http_response->AddCustomHeader("etag", "Wfhw789h");
http_response->AddCustomHeader("x-cup-server-proof", "server-proof");
http_response->AddCustomHeader(
update_client::NetworkFetcher::kHeaderSetCookie, "cookie");
} else if (request.method == net::test_server::HttpMethod::METHOD_GET) {
http_response->set_content("hello");
http_response->set_content_type("application/octet-stream");
} else {
ADD_FAILURE();
}
http_response->set_code(net::HTTP_OK);
return http_response;
}
MOCK_METHOD(void, DownloadToFileCompleted, ());
MOCK_METHOD(void, PostRequestCompleted, ());
protected:
base::test::TaskEnvironment task_environment_;
base::RunLoop run_loop_;
net::test_server::EmbeddedTestServer test_server_;
std::unique_ptr<update_client::NetworkFetcher> fetcher_;
private:
void SetUp() override {
test_server_.RegisterRequestHandler(base::BindRepeating(
&UpdaterNetworkTest::HandleRequest, base::Unretained(this)));
server_handle_ = test_server_.StartAndReturnHandle();
ASSERT_TRUE(server_handle_);
network_fetcher_factory_ = base::MakeRefCounted<NetworkFetcherFactory>(
PolicyServiceProxyConfiguration::Get(test::CreateTestPolicyService()),
/*event_logger=*/nullptr);
fetcher_ = network_fetcher_factory_->Create();
}
net::test_server::EmbeddedTestServerHandle server_handle_;
scoped_refptr<NetworkFetcherFactory> network_fetcher_factory_;
};
// Sets up a download for "chrome/updater/test/data/signed.exe" using the
// embedded test server running on localhost.
class UpdaterDownloadTest : public ::testing::Test {
protected:
base::FilePath dest_;
GURL gurl_;
private:
void SetUp() override {
server_.ServeFilesFromSourceDirectory("chrome/updater/test/data");
server_handle_ = server_.StartAndReturnHandle();
ASSERT_TRUE(scoped_dir_.CreateUniqueTempDir());
dest_ = scoped_dir_.GetPath().AppendUTF8("updater-signed.exe");
gurl_ = GURL(base::StrCat({server_.base_url().spec(), "signed.exe"}));
}
base::test::TaskEnvironment task_environment_;
net::test_server::EmbeddedTestServer server_;
net::test_server::EmbeddedTestServerHandle server_handle_;
base::ScopedTempDir scoped_dir_;
};
} // namespace
TEST_F(UpdaterNetworkTest, NetworkFetcherPostRequest) {
base::ScopedDisallowBlocking no_blocking_allowed_on_sequence;
const std::string kPostData = "\x01\x00\x55\x33\xda\x10\x44";
EXPECT_CALL(*this, PostRequestCompleted())
.WillOnce(RunClosure(run_loop_.QuitClosure()));
fetcher_->PostRequest(
test_server_.GetURL("/echo"), kPostData, {}, {},
base::BindRepeating(&UpdaterNetworkTest::StartedCallback,
base::Unretained(this)),
base::BindRepeating(&UpdaterNetworkTest::ProgressCallback,
base::Unretained(this)),
base::BindOnce(&UpdaterNetworkTest::PostRequestCompleteCallback,
base::Unretained(this), kPostData));
run_loop_.Run();
}
TEST_F(UpdaterNetworkTest, NetworkFetcherDownloadToFile) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
const base::FilePath test_file_path =
temp_dir.GetPath().Append(FILE_PATH_LITERAL("downloaded_file"));
{
base::ScopedDisallowBlocking no_blocking_allowed_on_sequence;
EXPECT_CALL(*this, DownloadToFileCompleted())
.WillOnce(RunClosure(run_loop_.QuitClosure()));
fetcher_->DownloadToFile(
test_server_.GetURL("/echo"), test_file_path,
base::BindRepeating(&UpdaterNetworkTest::StartedCallback,
base::Unretained(this)),
base::BindRepeating(&UpdaterNetworkTest::ProgressCallback,
base::Unretained(this)),
base::BindOnce(&UpdaterNetworkTest::DownloadCallback,
base::Unretained(this), test_file_path));
run_loop_.Run();
}
EXPECT_TRUE(base::PathExists(test_file_path));
}
TEST_F(UpdaterDownloadTest, NetworkFetcher) {
EXPECT_FALSE(base::PathExists(dest_));
base::RunLoop run_loop;
auto factory = base::MakeRefCounted<NetworkFetcherFactory>(
PolicyServiceProxyConfiguration::Get(test::CreateTestPolicyService()),
/*event_logger=*/nullptr);
ASSERT_NE(factory, nullptr);
{
base::ScopedDisallowBlocking no_blocking_allowed_on_sequence;
std::unique_ptr<update_client::NetworkFetcher> fetcher = factory->Create();
ASSERT_NE(fetcher, nullptr);
fetcher->DownloadToFile(
gurl_, dest_,
base::BindRepeating([](int response_code, int64_t /*content_length*/) {
EXPECT_EQ(response_code, 200);
}),
base::BindRepeating([](int64_t /*current*/) {}),
base::BindOnce([](int net_error, int64_t content_size) {
EXPECT_EQ(net_error, 0);
}).Then(run_loop.QuitClosure()));
run_loop.Run();
}
EXPECT_TRUE(base::PathExists(dest_));
}
#if BUILDFLAG(IS_WIN)
// Tests that a direct download through URL moniker from a local HTTP server is
// reasonably fast. This provides a baseline to compare the network throughput
// of various fetchers.
TEST_F(UpdaterDownloadTest, URLMonFetcher) {
EXPECT_FALSE(base::PathExists(dest_));
EXPECT_HRESULT_SUCCEEDED(
::URLDownloadToFile(nullptr, base::UTF8ToWide(gurl_.spec()).c_str(),
dest_.value().c_str(), 0, nullptr));
EXPECT_TRUE(base::PathExists(dest_));
}
#endif
} // namespace updater
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