blob: 9d44b5f918ac57f3f7d65ae5c2da2618d5b33cf5 [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <string>
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/gtest_prod_util.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/optional.h"
#include "base/sequence_checker.h"
#include "base/values.h"
namespace service_manager {
class Connector;
namespace extensions {
// ZipFileInstaller unzips an extension safely using the Unzipper and
// SafeJSONParser services.
// This class is not thread-safe: it is bound to the sequence it is created on.
class ZipFileInstaller : public base::RefCountedThreadSafe<ZipFileInstaller> {
// The callback invoked when the ZIP file installation is finished.
// On success, |unzip_dir| points to the directory the ZIP file was installed
// and |error| is empty. On failure, |unzip_dir| is empty and |error| contains
// an error message describing the failure.
using DoneCallback = base::OnceCallback<void(const base::FilePath& zip_file,
const base::FilePath& unzip_dir,
const std::string& error)>;
// Creates a ZipFileInstaller that invokes |done_callback| when done.
static scoped_refptr<ZipFileInstaller> Create(
service_manager::Connector* connector,
DoneCallback done_callback);
// Creates a temporary directory and unzips the extension in it.
void LoadFromZipFile(const base::FilePath& zip_file);
// Unzips the extension in |unzip_dir|.
void LoadFromZipFileInDir(const base::FilePath& zip_file,
const base::FilePath& unzip_dir);
friend class base::RefCountedThreadSafe<ZipFileInstaller>;
FRIEND_TEST_ALL_PREFIXES(ZipFileInstallerTest, NonTheme_FileExtractionFilter);
FRIEND_TEST_ALL_PREFIXES(ZipFileInstallerTest, Theme_FileExtractionFilter);
FRIEND_TEST_ALL_PREFIXES(ZipFileInstallerTest, ManifestExtractionFilter);
ZipFileInstaller(service_manager::Connector* connector,
DoneCallback done_callback);
void LoadFromZipFileImpl(const base::FilePath& zip_file,
const base::FilePath& unzip_dir);
// Unzip an extension into |unzip_dir| and load it with an UnpackedInstaller.
void Unzip(base::Optional<base::FilePath> unzip_dir);
void ManifestUnzipped(const base::FilePath& unzip_dir, bool success);
void ManifestRead(const base::FilePath& unzip_dir,
base::Optional<std::string> manifest_content);
void ManifestParsingFailed(const std::string& error);
void ManifestParsed(const base::FilePath& unzip_dir,
std::unique_ptr<base::Value> manifest);
void UnzipDone(const base::FilePath& unzip_dir, bool success);
// On failure, report the |error| reason.
void ReportFailure(const std::string& error);
// Callback invoked when unzipping has finished.
DoneCallback done_callback_;
// Whether a file should be extracted as part of installing an
// extension/theme. Protects against unused or potentially hamrful files.
static bool ShouldExtractFile(bool is_theme, const base::FilePath& file_path);
// Returns true if |file_path| points to an extension manifest.
static bool IsManifestFile(const base::FilePath& file_path);
// File containing the extension to unzip.
base::FilePath zip_file_;
// Connector to the ServiceManager. Bound to the UI thread.
service_manager::Connector* connector_;
} // namespace extensions