Vladimir Golovnev (Glassez)
4 years ago
6 changed files with 138 additions and 87 deletions
@ -0,0 +1,121 @@ |
|||||||
|
/*
|
||||||
|
* Bittorrent Client using Qt and libtorrent. |
||||||
|
* Copyright (C) 2015, 2021 Vladimir Golovnev <glassez@yandex.ru> |
||||||
|
* |
||||||
|
* 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 2 |
||||||
|
* 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, write to the Free Software |
||||||
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
||||||
|
* |
||||||
|
* In addition, as a special exception, the copyright holders give permission to |
||||||
|
* link this program with the OpenSSL project's "OpenSSL" library (or with |
||||||
|
* modified versions of it that use the same license as the "OpenSSL" library), |
||||||
|
* and distribute the linked executables. You must obey the GNU General Public |
||||||
|
* License in all respects for all of the code used other than "OpenSSL". If you |
||||||
|
* modify file(s), you may extend this exception to your version of the file(s), |
||||||
|
* but you are not obligated to do so. If you do not wish to do so, delete this |
||||||
|
* exception statement from your version. |
||||||
|
*/ |
||||||
|
|
||||||
|
#pragma once |
||||||
|
|
||||||
|
#include <libtorrent/sha1_hash.hpp> |
||||||
|
|
||||||
|
#include <QByteArray> |
||||||
|
#include <QHash> |
||||||
|
#include <QString> |
||||||
|
|
||||||
|
template <int N> |
||||||
|
class Digest32 |
||||||
|
{ |
||||||
|
public: |
||||||
|
using UnderlyingType = lt::digest32<N>; |
||||||
|
|
||||||
|
Digest32() = default; |
||||||
|
Digest32(const Digest32 &other) = default; |
||||||
|
|
||||||
|
Digest32(const UnderlyingType &nativeDigest) |
||||||
|
: m_valid {true} |
||||||
|
, m_nativeDigest {nativeDigest} |
||||||
|
{ |
||||||
|
const QByteArray raw = QByteArray::fromRawData(nativeDigest.data(), length()); |
||||||
|
m_hashString = QString::fromLatin1(raw.toHex()); |
||||||
|
} |
||||||
|
|
||||||
|
static constexpr int length() |
||||||
|
{ |
||||||
|
return UnderlyingType::size(); |
||||||
|
} |
||||||
|
|
||||||
|
bool isValid() const |
||||||
|
{ |
||||||
|
return m_valid; |
||||||
|
} |
||||||
|
|
||||||
|
operator UnderlyingType() const |
||||||
|
{ |
||||||
|
return m_nativeDigest; |
||||||
|
} |
||||||
|
|
||||||
|
static Digest32 fromString(const QString &digestString) |
||||||
|
{ |
||||||
|
if (digestString.size() != (length() * 2)) |
||||||
|
return {}; |
||||||
|
|
||||||
|
const QByteArray raw = QByteArray::fromHex(digestString.toLatin1()); |
||||||
|
if (raw.size() != length()) // QByteArray::fromHex() will skip over invalid characters
|
||||||
|
return {}; |
||||||
|
|
||||||
|
Digest32 result; |
||||||
|
result.m_valid = true; |
||||||
|
result.m_hashString = digestString; |
||||||
|
result.m_nativeDigest.assign(raw.constData()); |
||||||
|
|
||||||
|
return result; |
||||||
|
} |
||||||
|
|
||||||
|
QString toString() const |
||||||
|
{ |
||||||
|
return m_hashString; |
||||||
|
} |
||||||
|
|
||||||
|
private: |
||||||
|
bool m_valid = false; |
||||||
|
UnderlyingType m_nativeDigest; |
||||||
|
QString m_hashString; |
||||||
|
}; |
||||||
|
|
||||||
|
template <int N> |
||||||
|
bool operator==(const Digest32<N> &left, const Digest32<N> &right) |
||||||
|
{ |
||||||
|
return (static_cast<typename Digest32<N>::UnderlyingType>(left) |
||||||
|
== static_cast<typename Digest32<N>::UnderlyingType>(right)); |
||||||
|
} |
||||||
|
|
||||||
|
template <int N> |
||||||
|
bool operator!=(const Digest32<N> &left, const Digest32<N> &right) |
||||||
|
{ |
||||||
|
return !(left == right); |
||||||
|
} |
||||||
|
|
||||||
|
template <int N> |
||||||
|
bool operator<(const Digest32<N> &left, const Digest32<N> &right) |
||||||
|
{ |
||||||
|
return static_cast<typename Digest32<N>::UnderlyingType>(left) |
||||||
|
< static_cast<typename Digest32<N>::UnderlyingType>(right); |
||||||
|
} |
||||||
|
|
||||||
|
template <int N> |
||||||
|
uint qHash(const Digest32<N> &key, const uint seed) |
||||||
|
{ |
||||||
|
return ::qHash(std::hash<typename Digest32<N>::UnderlyingType>()(key), seed); |
||||||
|
} |
Loading…
Reference in new issue