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// Copyright 2014 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/browser/win/chrome_elf_init.h"
#include <memory>
#include <string>
#include "base/metrics/field_trial.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/test_reg_util_win.h"
#include "chrome/chrome_elf/blocklist_constants.h"
#include "chrome/common/chrome_version.h"
#include "chrome/install_static/install_util.h"
#include "components/variations/variations_associated_data.h"
#include "components/version_info/version_info.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
class ChromeBlocklistTrialTest : public testing::Test {
protected:
void SetUp() override {
testing::Test::SetUp();
ASSERT_NO_FATAL_FAILURE(
override_manager_.OverrideRegistry(HKEY_CURRENT_USER));
blocklist_registry_key_ = std::make_unique<base::win::RegKey>(
HKEY_CURRENT_USER,
install_static::GetRegistryPath()
.append(blocklist::kRegistryBeaconKeyName)
.c_str(),
KEY_QUERY_VALUE | KEY_SET_VALUE);
}
DWORD GetBlocklistState() {
DWORD blocklist_state = blocklist::BLOCKLIST_STATE_MAX;
blocklist_registry_key_->ReadValueDW(blocklist::kBeaconState,
&blocklist_state);
return blocklist_state;
}
std::wstring GetBlocklistVersion() {
std::wstring blocklist_version;
blocklist_registry_key_->ReadValue(blocklist::kBeaconVersion,
&blocklist_version);
return blocklist_version;
}
std::unique_ptr<base::win::RegKey> blocklist_registry_key_;
registry_util::RegistryOverrideManager override_manager_;
content::BrowserTaskEnvironment task_environment_;
};
// Ensure that the default trial sets up the blocklist beacons.
TEST_F(ChromeBlocklistTrialTest, DefaultRun) {
// Set some dummy values as beacons.
blocklist_registry_key_->WriteValue(blocklist::kBeaconState,
blocklist::BLOCKLIST_DISABLED);
blocklist_registry_key_->WriteValue(blocklist::kBeaconVersion, L"Data");
// This setup code should result in the default group, which should have
// the blocklist set up.
InitializeChromeElf();
// Ensure the beacon values are now correct, indicating the
// blocklist beacon was setup.
ASSERT_EQ(static_cast<DWORD>(blocklist::BLOCKLIST_ENABLED),
GetBlocklistState());
std::wstring version(base::UTF8ToWide(version_info::GetVersionNumber()));
ASSERT_EQ(version, GetBlocklistVersion());
}
// Ensure that the blocklist is disabled for any users in the
// "BlocklistDisabled" finch group.
TEST_F(ChromeBlocklistTrialTest, BlocklistDisabledRun) {
// Set the beacons to enabled values.
blocklist_registry_key_->WriteValue(blocklist::kBeaconState,
blocklist::BLOCKLIST_ENABLED);
blocklist_registry_key_->WriteValue(blocklist::kBeaconVersion, L"Data");
scoped_refptr<base::FieldTrial> trial(
base::FieldTrialList::CreateFieldTrial(
kBrowserBlocklistTrialName, kBrowserBlocklistTrialDisabledGroupName));
// This setup code should now delete any existing blocklist beacons.
InitializeChromeElf();
// Ensure invalid values are returned to indicate that the beacon
// values are indeed gone.
ASSERT_EQ(static_cast<DWORD>(blocklist::BLOCKLIST_STATE_MAX),
GetBlocklistState());
ASSERT_EQ(std::wstring(), GetBlocklistVersion());
}
TEST_F(ChromeBlocklistTrialTest, VerifyFirstRun) {
BrowserBlocklistBeaconSetup();
// Verify the state is properly set after the first run.
ASSERT_EQ(static_cast<DWORD>(blocklist::BLOCKLIST_ENABLED),
GetBlocklistState());
std::wstring version(base::UTF8ToWide(version_info::GetVersionNumber()));
ASSERT_EQ(version, GetBlocklistVersion());
}
TEST_F(ChromeBlocklistTrialTest, BlocklistFailed) {
// Ensure when the blocklist set up failed we set the state to disabled for
// future runs.
blocklist_registry_key_->WriteValue(blocklist::kBeaconVersion,
TEXT(CHROME_VERSION_STRING));
blocklist_registry_key_->WriteValue(blocklist::kBeaconState,
blocklist::BLOCKLIST_SETUP_FAILED);
BrowserBlocklistBeaconSetup();
ASSERT_EQ(static_cast<DWORD>(blocklist::BLOCKLIST_DISABLED),
GetBlocklistState());
}
TEST_F(ChromeBlocklistTrialTest, VersionChanged) {
// Mark the blocklist as disabled for an older version, it should
// get enabled for this new version. Also record a non-zero number of
// setup failures, which should be reset to zero.
blocklist_registry_key_->WriteValue(blocklist::kBeaconVersion,
L"old_version");
blocklist_registry_key_->WriteValue(blocklist::kBeaconState,
blocklist::BLOCKLIST_DISABLED);
blocklist_registry_key_->WriteValue(blocklist::kBeaconAttemptCount,
blocklist::kBeaconMaxAttempts);
BrowserBlocklistBeaconSetup();
// The beacon should now be marked as enabled for the current version.
ASSERT_EQ(static_cast<DWORD>(blocklist::BLOCKLIST_ENABLED),
GetBlocklistState());
std::wstring expected_version(
base::UTF8ToWide(version_info::GetVersionNumber()));
ASSERT_EQ(expected_version, GetBlocklistVersion());
// The counter should be reset.
DWORD attempt_count = blocklist::kBeaconMaxAttempts;
blocklist_registry_key_->ReadValueDW(blocklist::kBeaconAttemptCount,
&attempt_count);
ASSERT_EQ(static_cast<DWORD>(0), attempt_count);
}
} // namespace
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