blob: 34260a8e1e1b4294dfabcab8c251feb85e4f7a9e [file] [log] [blame]
// Copyright 2018 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.
// Stolen from chrome/browser/component_updater/component_unpacker.h
#include <stdint.h>
#include <string>
#include <vector>
#include "base/files/file_path.h"
namespace chrome_cleaner {
// In charge of unpacking the component CRX package and verifying that it is
// well formed and the cryptographic signature is correct.
// This class is inspired by and overlaps with code in the extension's
// SandboxedUnpacker.
// The main differences are:
// - The public key hash is full SHA256.
// - Does not use a sandboxed unpacker. A valid component is fully trusted.
class ComponentUnpacker {
// Constructs an unpacker for a specific component unpacking operation.
// |pk_hash| is the expected public key SHA256 hash. |path| is the current
// location of the CRX.
ComponentUnpacker(const std::vector<uint8_t>& pk_hash,
const base::FilePath& path);
virtual ~ComponentUnpacker();
// Unpack the file to the provided folder. Return true on success.
bool Unpack(const base::FilePath& ouput_folder);
// The first step of unpacking is to verify the file. Return false if an
// error is encountered, the file is malformed, or the file is incorrectly
// signed.
bool Verify();
std::vector<uint8_t> pk_hash_;
base::FilePath path_;
} // namespace chrome_cleaner