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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 "remoting/host/webauthn/remote_webauthn_extension_notifier.h"
#include <memory>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/ptr_util.h"
#include "base/memory/scoped_refptr.h"
#include "base/run_loop.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/thread_pool.h"
#include "base/test/bind.h"
#include "base/test/task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace remoting {
namespace {
void AssertExtensionIdWakeupFilesExist(const base::FilePath& path_prefix) {
for (const auto& id :
RemoteWebAuthnExtensionNotifier::GetRemoteWebAuthnExtensionIds()) {
ASSERT_TRUE(base::PathExists(path_prefix.Append(id)));
}
}
void AssertExtensionIdWakeupFilesNotExist(const base::FilePath& path_prefix) {
for (const auto& id :
RemoteWebAuthnExtensionNotifier::GetRemoteWebAuthnExtensionIds()) {
ASSERT_FALSE(base::PathExists(path_prefix.Append(id)));
}
}
void DeleteExtensionIdWakeupFiles(const base::FilePath& path_prefix) {
for (const auto& id :
RemoteWebAuthnExtensionNotifier::GetRemoteWebAuthnExtensionIds()) {
base::FilePath file_path = path_prefix.Append(id);
base::DeleteFile(file_path);
}
}
} // namespace
class RemoteWebAuthnExtensionNotifierTest : public testing::Test {
public:
RemoteWebAuthnExtensionNotifierTest();
~RemoteWebAuthnExtensionNotifierTest() override;
protected:
void WaitForNextIoTask();
base::ScopedTempDir scoped_temp_dir_1_;
base::ScopedTempDir scoped_temp_dir_2_;
std::unique_ptr<RemoteWebAuthnExtensionNotifier> notifier_;
private:
base::test::TaskEnvironment task_environment_;
scoped_refptr<base::SequencedTaskRunner> io_task_runner_;
};
RemoteWebAuthnExtensionNotifierTest::RemoteWebAuthnExtensionNotifierTest() {
EXPECT_FALSE(
RemoteWebAuthnExtensionNotifier::GetRemoteWebAuthnExtensionIds().empty());
EXPECT_TRUE(scoped_temp_dir_1_.CreateUniqueTempDir());
EXPECT_TRUE(scoped_temp_dir_2_.CreateUniqueTempDir());
io_task_runner_ = base::ThreadPool::CreateSequencedTaskRunner(
{base::MayBlock(), base::WithBaseSyncPrimitives()});
notifier_ = base::WrapUnique(new RemoteWebAuthnExtensionNotifier(
{
scoped_temp_dir_1_.GetPath(),
scoped_temp_dir_2_.GetPath(),
},
io_task_runner_));
}
RemoteWebAuthnExtensionNotifierTest::~RemoteWebAuthnExtensionNotifierTest() {
notifier_.reset();
// Wait for the notifier core to be deleted on the IO sequence so that ASAN
// doesn't complain about leaked memory.
WaitForNextIoTask();
}
void RemoteWebAuthnExtensionNotifierTest::WaitForNextIoTask() {
base::RunLoop run_loop;
task_environment_.GetMainThreadTaskRunner()->PostTask(
FROM_HERE, base::BindLambdaForTesting([&]() {
io_task_runner_->PostTaskAndReply(FROM_HERE, base::DoNothing(),
run_loop.QuitClosure());
}));
run_loop.Run();
}
TEST_F(RemoteWebAuthnExtensionNotifierTest, WritesFileInBothDirectories) {
notifier_->NotifyStateChange();
WaitForNextIoTask();
AssertExtensionIdWakeupFilesExist(scoped_temp_dir_1_.GetPath());
AssertExtensionIdWakeupFilesExist(scoped_temp_dir_2_.GetPath());
}
TEST_F(RemoteWebAuthnExtensionNotifierTest,
WritesFilesOnlyInExistingDirectory) {
base::FilePath deleted_temp_dir_1_path = scoped_temp_dir_1_.GetPath();
ASSERT_TRUE(scoped_temp_dir_1_.Delete());
notifier_->NotifyStateChange();
WaitForNextIoTask();
AssertExtensionIdWakeupFilesNotExist(deleted_temp_dir_1_path);
AssertExtensionIdWakeupFilesExist(scoped_temp_dir_2_.GetPath());
}
TEST_F(RemoteWebAuthnExtensionNotifierTest, FilesRewrittenAfterSecondCall) {
base::FilePath wakeup_file_prefix = scoped_temp_dir_1_.GetPath();
notifier_->NotifyStateChange();
WaitForNextIoTask();
AssertExtensionIdWakeupFilesExist(wakeup_file_prefix);
DeleteExtensionIdWakeupFiles(wakeup_file_prefix);
AssertExtensionIdWakeupFilesNotExist(wakeup_file_prefix);
notifier_->NotifyStateChange();
WaitForNextIoTask();
AssertExtensionIdWakeupFilesExist(wakeup_file_prefix);
}
TEST_F(RemoteWebAuthnExtensionNotifierTest,
FileWrittenWhenNotifierIsDeletedRightAfterNotifyStateChangeIsCalled) {
notifier_->NotifyStateChange();
notifier_.reset();
WaitForNextIoTask();
AssertExtensionIdWakeupFilesExist(scoped_temp_dir_1_.GetPath());
}
TEST_F(RemoteWebAuthnExtensionNotifierTest,
OnlyOneExtensionWakeupTaskIsScheduledForMultipleCalls) {
base::FilePath wakeup_file_prefix = scoped_temp_dir_1_.GetPath();
notifier_->NotifyStateChange();
notifier_->NotifyStateChange();
notifier_->NotifyStateChange();
WaitForNextIoTask();
AssertExtensionIdWakeupFilesExist(wakeup_file_prefix);
DeleteExtensionIdWakeupFiles(wakeup_file_prefix);
AssertExtensionIdWakeupFilesNotExist(wakeup_file_prefix);
WaitForNextIoTask();
WaitForNextIoTask();
for (const auto& id :
RemoteWebAuthnExtensionNotifier::GetRemoteWebAuthnExtensionIds()) {
ASSERT_FALSE(base::PathExists(wakeup_file_prefix.Append(id)));
}
}
} // namespace remoting
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