Vladimir Golovnev
4 years ago
committed by
GitHub
17 changed files with 188 additions and 133 deletions
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/*
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* Bittorrent Client using Qt and libtorrent. |
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* Copyright (C) 2015, 2021 Vladimir Golovnev <glassez@yandex.ru> |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* |
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* In addition, as a special exception, the copyright holders give permission to |
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* link this program with the OpenSSL project's "OpenSSL" library (or with |
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* modified versions of it that use the same license as the "OpenSSL" library), |
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* and distribute the linked executables. You must obey the GNU General Public |
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* License in all respects for all of the code used other than "OpenSSL". If you |
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* modify file(s), you may extend this exception to your version of the file(s), |
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* but you are not obligated to do so. If you do not wish to do so, delete this |
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* exception statement from your version. |
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*/ |
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#pragma once |
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#include <libtorrent/sha1_hash.hpp> |
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#include <QByteArray> |
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#include <QHash> |
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#include <QString> |
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template <int N> |
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class Digest32 |
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{ |
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public: |
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using UnderlyingType = lt::digest32<N>; |
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Digest32() = default; |
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Digest32(const Digest32 &other) = default; |
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Digest32(const UnderlyingType &nativeDigest) |
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: m_valid {true} |
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, m_nativeDigest {nativeDigest} |
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{ |
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const QByteArray raw = QByteArray::fromRawData(nativeDigest.data(), length()); |
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m_hashString = QString::fromLatin1(raw.toHex()); |
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} |
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static constexpr int length() |
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{ |
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return UnderlyingType::size(); |
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} |
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bool isValid() const |
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{ |
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return m_valid; |
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} |
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operator UnderlyingType() const |
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{ |
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return m_nativeDigest; |
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} |
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static Digest32 fromString(const QString &digestString) |
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{ |
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if (digestString.size() != (length() * 2)) |
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return {}; |
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const QByteArray raw = QByteArray::fromHex(digestString.toLatin1()); |
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if (raw.size() != length()) // QByteArray::fromHex() will skip over invalid characters
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return {}; |
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Digest32 result; |
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result.m_valid = true; |
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result.m_hashString = digestString; |
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result.m_nativeDigest.assign(raw.constData()); |
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return result; |
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} |
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QString toString() const |
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{ |
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return m_hashString; |
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} |
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private: |
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bool m_valid = false; |
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UnderlyingType m_nativeDigest; |
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QString m_hashString; |
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}; |
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template <int N> |
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bool operator==(const Digest32<N> &left, const Digest32<N> &right) |
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{ |
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return (static_cast<typename Digest32<N>::UnderlyingType>(left) |
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== static_cast<typename Digest32<N>::UnderlyingType>(right)); |
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} |
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template <int N> |
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bool operator!=(const Digest32<N> &left, const Digest32<N> &right) |
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{ |
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return !(left == right); |
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} |
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template <int N> |
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bool operator<(const Digest32<N> &left, const Digest32<N> &right) |
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{ |
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return static_cast<typename Digest32<N>::UnderlyingType>(left) |
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< static_cast<typename Digest32<N>::UnderlyingType>(right); |
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} |
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template <int N> |
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uint qHash(const Digest32<N> &key, const uint seed) |
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{ |
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return ::qHash(std::hash<typename Digest32<N>::UnderlyingType>()(key), seed); |
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} |
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