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// Copyright 2016 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.
#ifndef COMPONENTS_OS_CRYPT_KEY_STORAGE_LINUX_H_
#define COMPONENTS_OS_CRYPT_KEY_STORAGE_LINUX_H_
#include <memory>
#include <string>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
namespace base {
class SingleThreadTaskRunner;
} // namespace base
// An API for retrieving OSCrypt's password from the system's password storage
// service.
class KeyStorageLinux {
public:
KeyStorageLinux() = default;
virtual ~KeyStorageLinux() = default;
// Force OSCrypt to use a specific linux password store.
static void SetStore(const std::string& store_type);
// The product name to use for permission prompts.
static void SetProductName(const std::string& product_name);
// A runner on the main thread for gnome-keyring to be called from.
// TODO(crbug/466975): Libsecret and KWallet don't need this. We can remove
// this when we stop supporting keyring.
static void SetMainThreadRunner(
scoped_refptr<base::SingleThreadTaskRunner> main_thread_runner);
// Tries to load the appropriate key storage. Returns null if none succeed.
static std::unique_ptr<KeyStorageLinux> CreateService();
// Gets the encryption key from the OS password-managing library. If a key is
// not found, a new key will be generated, stored and returned.
virtual std::string GetKey() = 0;
protected:
// Loads the key storage. Returns false if the service is not available.
virtual bool Init() = 0;
// The name of the group, if any, containing the key.
static const char kFolderName[];
// The name of the entry with the encryption key.
static const char kKey[];
private:
DISALLOW_COPY_AND_ASSIGN(KeyStorageLinux);
};
#endif // COMPONENTS_OS_CRYPT_KEY_STORAGE_LINUX_H_
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