databaseencryptedpasswordbackend.h

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/* ============================================================
* Falkon - Qt web browser
* Copyright (C) 2013-2014  S. Razi Alavizadeh <s.r.alavizadeh@gmail.com>
* Copyright (C) 2013-2018  David Rosca <nowrep@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
* ============================================================ */
#ifndef DATABASEENCRYPTEDPASSWORDBACKEND_H
#define DATABASEENCRYPTEDPASSWORDBACKEND_H
 
#include "passwordbackend.h"
#include "qzcommon.h"
 
#include <QDialog>
 
class AesInterface;
class MasterPasswordDialog;
 
class FALKON_EXPORT DatabaseEncryptedPasswordBackend : public PasswordBackend
{
public:
    enum MasterPasswordState {
        PasswordIsSetted,
        PasswordIsNotSetted,
        UnKnownState = -1
    };
 
    explicit DatabaseEncryptedPasswordBackend();
 
    ~DatabaseEncryptedPasswordBackend() override;
 
    QStringList getUsernames(const QUrl &url) override;
    QVector<PasswordEntry> getEntries(const QUrl &url) override;
    QVector<PasswordEntry> getAllEntries() override;
 
    void setActive(bool active) override;
 
    void addEntry(const PasswordEntry &entry) override;
    bool updateEntry(const PasswordEntry &entry) override;
    void updateLastUsed(PasswordEntry &entry) override;
 
    void removeEntry(const PasswordEntry &entry) override;
    void removeAll() override;
 
    QString name() const override;
 
    bool hasSettings() const override;
    void showSettings(QWidget* parent) override;
 
    bool isMasterPasswordSetted();
 
    QByteArray masterPassword() const;
 
    bool hasPermission();
    bool isPasswordVerified(const QByteArray &password);
 
    bool decryptPasswordEntry(PasswordEntry &entry, AesInterface* aesInterface);
    bool encryptPasswordEntry(PasswordEntry &entry, AesInterface* aesInterface);
 
    void tryToChangeMasterPassword(const QByteArray &newPassword);
    void removeMasterPassword();
 
    void setAskMasterPasswordState(bool ask);
 
    void encryptDataBaseTableOnFly(const QByteArray &decryptorPassword,
                                   const QByteArray &encryptorPassword);
 
    void updateSampleData(const QByteArray &password);
 
    void showMasterPasswordDialog();
 
private:
    QByteArray someDataFromDatabase();
 
    MasterPasswordState m_stateOfMasterPassword;
    QByteArray m_someDataStoredOnDataBase;
 
    bool m_askPasswordDialogVisible;
    bool m_askMasterPassword;
    QByteArray m_masterPassword;
};
 
namespace Ui
{
class MasterPasswordDialog;
}
 
class MasterPasswordDialog : public QDialog
{
    Q_OBJECT
 
public:
    explicit MasterPasswordDialog(DatabaseEncryptedPasswordBackend* backend, QWidget* parent = nullptr);
    ~MasterPasswordDialog() override;
 
    void delayedExec();
 
public Q_SLOTS:
    void accept() override;
    void reject() override;
    void showSettingPage();
    void showSetMasterPasswordPage();
    void clearMasterPasswordAndConvert(bool forcedAskPass = true);
    bool samePasswordEntry(const PasswordEntry &entry1, const PasswordEntry &entry2);
 
private:
    Ui::MasterPasswordDialog* ui;
    DatabaseEncryptedPasswordBackend* m_backend;
};
 
class QDialogButtonBox;
class QLineEdit;
class QLabel;
 
class AskMasterPassword : public QDialog
{
    Q_OBJECT
 
public:
    explicit AskMasterPassword(DatabaseEncryptedPasswordBackend* backend, QWidget* parent = nullptr);
 
private Q_SLOTS:
    void verifyPassword();
 
private:
    DatabaseEncryptedPasswordBackend* m_backend;
    QDialogButtonBox* m_buttonBox;
    QLineEdit* m_lineEdit;
    QLabel* m_labelWarning;
};
#endif // DATABASEENCRYPTEDPASSWORDBACKEND_H