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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/persistent_cache/sqlite/vfs/sqlite_sandboxed_vfs.h"
#include <memory>
#include <utility>
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "components/persistent_cache/sqlite/test_utils.h"
#include "components/persistent_cache/sqlite/vfs/sqlite_database_vfs_file_set.h"
#include "sql/database.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/sqlite/sqlite3.h"
namespace persistent_cache {
namespace {
const base::FilePath kNonExistentVirtualFilePath =
base::FilePath::FromASCII("NotFound");
} // namespace
class SqliteSandboxedVfsTest : public testing::Test {
public:
SqliteVfsFileSet CreateFilesAndBuildVfsFileSet() {
return temporary_vfs_file_set_provider_.CreateFilesAndBuildVfsFileSet();
}
private:
test_utils::TestHelper temporary_vfs_file_set_provider_;
};
TEST_F(SqliteSandboxedVfsTest, NoAccessWithoutRegistering) {
SqliteVfsFileSet vfs_file_set = CreateFilesAndBuildVfsFileSet();
EXPECT_FALSE(SqliteSandboxedVfsDelegate::GetInstance()
->OpenFile(kNonExistentVirtualFilePath, 0)
.IsValid());
}
TEST_F(SqliteSandboxedVfsTest, AccessAfterRegistering) {
SqliteVfsFileSet vfs_file_set = CreateFilesAndBuildVfsFileSet();
SqliteSandboxedVfsDelegate::UnregisterRunner unregister_runner =
SqliteSandboxedVfsDelegate::GetInstance()->RegisterSandboxedFiles(
vfs_file_set.Copy());
for (const auto& virtual_file_path_to_file : vfs_file_set.GetFiles()) {
EXPECT_TRUE(SqliteSandboxedVfsDelegate::GetInstance()
->OpenFile(virtual_file_path_to_file.first, 0)
.IsValid());
}
}
TEST_F(SqliteSandboxedVfsTest, NoAccessAfterUnregistering) {
SqliteVfsFileSet vfs_file_set = CreateFilesAndBuildVfsFileSet();
// Register and immediately unregister.
{
SqliteSandboxedVfsDelegate::UnregisterRunner unregister_runner =
SqliteSandboxedVfsDelegate::GetInstance()->RegisterSandboxedFiles(
vfs_file_set.Copy());
}
for (const auto& virtual_file_path_to_file : vfs_file_set.GetFiles()) {
EXPECT_FALSE(SqliteSandboxedVfsDelegate::GetInstance()
->OpenFile(virtual_file_path_to_file.first, 0)
.IsValid());
}
}
TEST_F(SqliteSandboxedVfsTest, AccessAfterReRegistering) {
SqliteVfsFileSet vfs_file_set = CreateFilesAndBuildVfsFileSet();
// Register and immediately unregister.
{
SqliteSandboxedVfsDelegate::UnregisterRunner unregister_runner =
SqliteSandboxedVfsDelegate::GetInstance()->RegisterSandboxedFiles(
vfs_file_set.Copy());
}
// Register again.
SqliteSandboxedVfsDelegate::UnregisterRunner unregister_runner =
SqliteSandboxedVfsDelegate::GetInstance()->RegisterSandboxedFiles(
vfs_file_set.Copy());
for (const auto& virtual_file_path_to_file : vfs_file_set.GetFiles()) {
EXPECT_TRUE(SqliteSandboxedVfsDelegate::GetInstance()
->OpenFile(virtual_file_path_to_file.first, 0)
.IsValid());
}
}
TEST_F(SqliteSandboxedVfsTest, DeleteFileAlwaysImpossible) {
SqliteVfsFileSet vfs_file_set = CreateFilesAndBuildVfsFileSet();
// Impossible to delete non-registered files.
for (const auto& virtual_file_path_to_file : vfs_file_set.GetFiles()) {
EXPECT_EQ(SqliteSandboxedVfsDelegate::GetInstance()->DeleteFile(
virtual_file_path_to_file.first, true),
SQLITE_NOTFOUND);
}
SqliteSandboxedVfsDelegate::UnregisterRunner unregister_runner =
SqliteSandboxedVfsDelegate::GetInstance()->RegisterSandboxedFiles(
vfs_file_set.Copy());
// Impossible to delete registered files.
for (const auto& virtual_file_path_to_file : vfs_file_set.GetFiles()) {
EXPECT_EQ(SqliteSandboxedVfsDelegate::GetInstance()->DeleteFile(
virtual_file_path_to_file.first, true),
SQLITE_IOERR_DELETE);
}
}
TEST_F(SqliteSandboxedVfsTest, OpenFile) {
SqliteVfsFileSet vfs_file_set = CreateFilesAndBuildVfsFileSet();
int64_t length = 0;
for (const auto& virtual_file_path_to_file : vfs_file_set.GetFiles()) {
virtual_file_path_to_file.second.DuplicateUnderlyingFile().SetLength(
length += 100);
}
SqliteSandboxedVfsDelegate::UnregisterRunner unregister_runner =
SqliteSandboxedVfsDelegate::GetInstance()->RegisterSandboxedFiles(
vfs_file_set.Copy());
for (const auto& virtual_file_path_to_file : vfs_file_set.GetFiles()) {
const base::File from_delegate =
SqliteSandboxedVfsDelegate::GetInstance()->OpenFile(
virtual_file_path_to_file.first, 0);
base::File from_map =
virtual_file_path_to_file.second.DuplicateUnderlyingFile();
base::File::Info info_from_delegate;
base::File::Info info_from_map;
from_delegate.GetInfo(&info_from_delegate);
from_map.GetInfo(&info_from_map);
EXPECT_EQ(info_from_delegate.size, info_from_map.size);
}
}
TEST_F(SqliteSandboxedVfsTest, SqliteIntegration) {
SqliteVfsFileSet vfs_file_set = CreateFilesAndBuildVfsFileSet();
SqliteSandboxedVfsDelegate::UnregisterRunner unregister_runner =
SqliteSandboxedVfsDelegate::GetInstance()->RegisterSandboxedFiles(
vfs_file_set.Copy());
sql::Database db(sql::DatabaseOptions().set_vfs_name_discouraged(
SqliteSandboxedVfsDelegate::kSqliteVfsName),
"Test");
EXPECT_TRUE(db.Open(vfs_file_set.GetDbVirtualFilePath()));
}
} // namespace persistent_cache
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