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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/

#pragma once

#include "ssh_global.h"

#include <QSharedPointer>

QT_BEGIN_NAMESPACE
class QByteArray;
class QString;
QT_END_NAMESPACE

namespace QSsh {
class SshHostKeyDatabase;
typedef QSharedPointer<SshHostKeyDatabase> SshHostKeyDatabasePtr;

class QSSH_EXPORT SshHostKeyDatabase
{
    friend class QSharedPointer<SshHostKeyDatabase>; // To give create() access to our constructor.

public:
    enum KeyLookupResult {
        KeyLookupMatch,
        KeyLookupNoMatch,
        KeyLookupMismatch
    };

    ~SshHostKeyDatabase();

    bool load(const QString &filePath, QString *error = 0);
    bool store(const QString &filePath, QString *error = 0) const;
    KeyLookupResult matchHostKey(const QString &hostName, const QByteArray &key) const;
    void insertHostKey(const QString &hostName, const QByteArray &key);

private:
    SshHostKeyDatabase();

    class SshHostKeyDatabasePrivate;
    SshHostKeyDatabasePrivate * const d;
};

} // namespace QSsh