83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
// SPDX-License-Identifier: GPL-3.0-only
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/*
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* PolyMC - Minecraft Launcher
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* Copyright (c) 2022 flowln <flowlnlnln@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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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, see <https://www.gnu.org/licenses/>.
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*
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* This file incorporates work covered by the following copyright and
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* permission notice:
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*
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* Copyright 2013-2021 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "Validator.h"
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#include <QCryptographicHash>
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#include <QFile>
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namespace Net {
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class ChecksumValidator : public Validator {
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public:
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ChecksumValidator(QCryptographicHash::Algorithm algorithm, QByteArray expected = QByteArray())
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: m_checksum(algorithm), m_expected(expected){};
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virtual ~ChecksumValidator() = default;
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public:
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auto init(QNetworkRequest&) -> bool override
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{
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m_checksum.reset();
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return true;
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}
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auto write(QByteArray& data) -> bool override
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{
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m_checksum.addData(data);
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return true;
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}
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auto abort() -> bool override { return true; }
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auto validate(QNetworkReply&) -> bool override
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{
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if (m_expected.size() && m_expected != hash()) {
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qWarning() << "Checksum mismatch, download is bad.";
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return false;
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}
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return true;
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}
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auto hash() -> QByteArray { return m_checksum.result(); }
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void setExpected(QByteArray expected) { m_expected = expected; }
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private:
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QCryptographicHash m_checksum;
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QByteArray m_expected;
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};
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} // namespace Net
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