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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtNetwork module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** 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-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QHSTS_P_H
#define QHSTS_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of the Network Access API. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qbytearray.h>
#include <QtCore/qdatetime.h>
#include <QtCore/qstring.h>
#include <QtCore/qglobal.h>
#include <QtCore/qvector.h>
#include <QtCore/qlist.h>
#include <QtCore/qpair.h>
#include <QtCore/qurl.h>
#include <algorithm>
#include <vector>
QT_BEGIN_NAMESPACE
class Q_AUTOTEST_EXPORT QHstsCache
{
public:
QHstsCache();
void updateFromHeaders(const QList<QPair<QByteArray, QByteArray>> &headers,
const QUrl &url);
void updateKnownHost(const QUrl &url, const QDateTime &expires,
bool includeSubDomains);
bool isKnownHost(const QUrl &url) const;
void clear();
private:
using size_type = std::vector<int>::size_type;
struct DomainLabel
{
DomainLabel(const QString &name = QString()) : label(name), domainIndex(0) {}
bool operator < (const DomainLabel &rhs) const
{ return label < rhs.label; }
QString label;
size_type domainIndex;
};
struct Domain
{
void setHostPolicy(const QDateTime &expiration, bool subs)
{
expirationTime = expiration;
isKnownHost = expirationTime.isValid()
&& expirationTime > QDateTime::currentDateTimeUtc();
includeSubDomains = subs;
}
bool validateHostPolicy()
{
if (!isKnownHost)
return false;
if (expirationTime > QDateTime::currentDateTimeUtc())
return true;
isKnownHost = false;
includeSubDomains = false;
return false;
}
bool isKnownHost = false;
bool includeSubDomains = false;
QDateTime expirationTime;
std::vector<DomainLabel> labels;
};
/*
Each Domain represents a DNS name or prefix thereof; each entry in its
std::vector<DomainLabel> labels pairs the next fragment of a DNS name
with the index into 'children' at which to find another Domain object.
The root Domain, children[0], has top-level-domain DomainLabel entries,
such as "com", "org" and "net"; the entry in 'children' at the index it
pairs with "com" is the Domain entry for .com; if that has "example" in
its labels, it'll be paired with the index of the entry in 'children'
that represents example.com; from which, in turn, we can find the
Domain object for www.example.com, and so on.
*/
mutable std::vector<Domain> children;
};
class Q_AUTOTEST_EXPORT QHstsHeaderParser
{
public:
bool parse(const QList<QPair<QByteArray, QByteArray>> &headers);
QDateTime expirationDate() const { return expiry; }
bool includeSubDomains() const { return subDomainsFound; }
private:
bool parseSTSHeader();
bool parseDirective();
bool processDirective(const QByteArray &name, const QByteArray &value);
bool nextToken();
QByteArray header;
QByteArray token;
QDateTime expiry;
int tokenPos = 0;
bool maxAgeFound = false;
qint64 maxAge = 0;
bool subDomainsFound = false;
};
QT_END_NAMESPACE
#endif
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