blob: 3cd683fc025f91fe2c7c0f3d65c18b795d059cd8 [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 <string>
#include "base/callback.h"
#include "base/macros.h"
#include "components/signin/core/account_id/account_id.h"
class EasyUnlockAppManager;
// Class responsible for handling easy unlock auth attempts (both for unlocking
// the screen and logging in). The auth protocol is started by calling |Start|,
// which notifies the easy unlock app about auth attempt. When the auth result
// is available, |FinalizeUnlock| or |FinalizeSignin| should be called,
// depending on auth type.
// To cancel the in progress auth attempt, delete the |EasyUnlockAuthAttempt|
// object.
class EasyUnlockAuthAttempt {
// The auth type.
enum Type {
// A callback to be invoked after the auth attempt is finalized. |success|
// indicates whether the attempt is successful or not. |account_id| is the
// associated user. |key_secret| is the user secret for a sign-in attempt
// and |key_label| is the label of the corresponding cryptohome key.
typedef base::Callback<void(Type auth_attempt_type,
bool success,
const AccountId& account_id,
const std::string& key_secret,
const std::string& key_label)> FinalizedCallback;
EasyUnlockAuthAttempt(EasyUnlockAppManager* app_manager,
const AccountId& account_id,
Type type,
const FinalizedCallback& finalized_callback);
// Starts the auth attempt by sending screenlockPrivate.onAuthAttempted event
// to easy unlock app. Returns whether the event was successfully dispatched.
bool Start();
// Finalizes an unlock attempt. It unlocks the screen if |success| is true.
// If |this| has TYPE_SIGNIN type, calling this method will cause signin
// failure equivalent to cancelling the attempt.
void FinalizeUnlock(const AccountId& account_id, bool success);
// Finalizes signin attempt. It tries to log in using the secret derived from
// |wrapped_secret| decrypted by |session_key|. If the decryption fails, it
// fails the signin attempt.
// If called on an object with TYPE_UNLOCK type, it will cause unlock failure
// equivalent to cancelling the request.
void FinalizeSignin(const AccountId& account_id,
const std::string& wrapped_secret,
const std::string& session_key);
// The internal attempt state.
enum State {
// Cancels the attempt.
void Cancel(const AccountId& account_id);
EasyUnlockAppManager* app_manager_;
State state_;
const AccountId account_id_;
Type type_;
FinalizedCallback finalized_callback_;