119 lines
		
	
	
	
		
			3.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			119 lines
		
	
	
	
		
			3.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop 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, either version 3 of the License, or
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(at your option) any later version.
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It 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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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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#include "ui/images.h"
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#include "mtproto/auth_key.h"
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namespace Serialize {
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inline int stringSize(const QString &str) {
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	return sizeof(quint32) + str.size() * sizeof(ushort);
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}
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inline int bytearraySize(const QByteArray &arr) {
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	return sizeof(quint32) + arr.size();
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}
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inline int bytesSize(base::const_byte_span bytes) {
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	return sizeof(quint32) + bytes.size();
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}
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struct ReadBytesVectorWrap {
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	base::byte_vector &bytes;
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};
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inline ReadBytesVectorWrap bytes(base::byte_vector &bytes) {
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	return ReadBytesVectorWrap { bytes };
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}
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// Compatible with QDataStream &operator>>(QDataStream &, QByteArray &);
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inline QDataStream &operator>>(QDataStream &stream, ReadBytesVectorWrap data) {
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	auto &bytes = data.bytes;
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	bytes.clear();
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	quint32 len;
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	stream >> len;
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	if (stream.status() != QDataStream::Ok || len == 0xFFFFFFFF) {
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		return stream;
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	}
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	constexpr auto kStep = quint32(1024 * 1024);
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	for (auto allocated = quint32(0); allocated < len;) {
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		auto blockSize = qMin(kStep, len - allocated);
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		bytes.resize(allocated + blockSize);
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		if (stream.readRawData(reinterpret_cast<char*>(bytes.data()) + allocated, blockSize) != blockSize) {
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			bytes.clear();
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			stream.setStatus(QDataStream::ReadPastEnd);
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			return stream;
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		}
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		allocated += blockSize;
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	}
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	return stream;
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}
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struct WriteBytesWrap {
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	base::const_byte_span bytes;
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};
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inline WriteBytesWrap bytes(base::const_byte_span bytes) {
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	return WriteBytesWrap { bytes };
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}
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inline QDataStream &operator<<(QDataStream &stream, WriteBytesWrap data) {
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	auto bytes = data.bytes;
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	if (bytes.empty()) {
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		stream << quint32(0xFFFFFFFF);
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	} else {
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		auto size = quint32(bytes.size());
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		stream << size;
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		stream.writeRawData(reinterpret_cast<const char*>(bytes.data()), size);
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	}
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	return stream;
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}
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inline QDataStream &operator<<(QDataStream &stream, ReadBytesVectorWrap data) {
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	return stream << WriteBytesWrap { data.bytes };
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}
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inline int dateTimeSize() {
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	return (sizeof(qint64) + sizeof(quint32) + sizeof(qint8));
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}
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void writeStorageImageLocation(QDataStream &stream, const StorageImageLocation &loc);
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StorageImageLocation readStorageImageLocation(QDataStream &stream);
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int storageImageLocationSize();
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template <typename T>
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inline T read(QDataStream &stream) {
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	auto result = T();
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	stream >> result;
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	return result;
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}
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template <>
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inline MTP::AuthKey::Data read<MTP::AuthKey::Data>(QDataStream &stream) {
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	auto result = MTP::AuthKey::Data();
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	stream.readRawData(reinterpret_cast<char*>(result.data()), result.size());
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	return result;
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}
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} // namespace Serialize
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