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// 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.
#ifndef CHROME_BROWSER_SIGNIN_EASY_UNLOCK_AUTH_ATTEMPT_H_
#define CHROME_BROWSER_SIGNIN_EASY_UNLOCK_AUTH_ATTEMPT_H_
#include <string>
#include "base/macros.h"
class Profile;
// 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 {
public:
// The auth type.
enum Type {
TYPE_UNLOCK,
TYPE_SIGNIN
};
EasyUnlockAuthAttempt(Profile* profile,
const std::string& user_id,
Type type);
~EasyUnlockAuthAttempt();
// Starts the auth attempt by sending screenlockPrivate.onAuthAttempted event
// to easy unlock app. Returns whether the event was successfully dispatched.
bool Start(const std::string& user_id);
// 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 std::string& user_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 std::string& user_id,
const std::string& wrapped_secret,
const std::string& session_key);
private:
// The internal attempt state.
enum State {
STATE_IDLE,
STATE_RUNNING,
STATE_DONE
};
// Cancels the attempt.
void Cancel(const std::string& user_id);
Profile* profile_;
State state_;
std::string user_id_;
Type type_;
DISALLOW_COPY_AND_ASSIGN(EasyUnlockAuthAttempt);
};
#endif // CHROME_BROWSER_SIGNIN_EASY_UNLOCK_AUTH_ATTEMPT_H_
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