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/*
* Copyright 2008 Ben Boeckel <MathStuf@gmail.com>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
// Header include
#include "PacketMaker.h"
// Protocol includes
#include "ProgressMeter.h"
// Qt includes
#include <QtCore/QtEndian>
#include <QtCore/QBuffer>
#include <QtCore/QIODevice>
bool readFromBuffer(char* dest, QIODevice* src, const int size, Signet::Protocol::ProgressMeter* progressMeter = 0)
{
int totalRead = 0;
if (progressMeter)
progressMeter->setExpectedSize(size);
while ((totalRead < size) && src->waitForReadyRead(30000))
{
int read = src->read(dest + totalRead, size - totalRead);
if (read < 0)
{
if (progressMeter)
progressMeter->failure();
return false;
}
totalRead += read;
if (progressMeter)
progressMeter->setValue(totalRead);
}
if (progressMeter)
progressMeter->success();
return true;
}
void Signet::Protocol::PacketMaker::rawData(QIODevice* device, const QByteArray& data, const QStringList& receivers)
{
Packet packet(Packet::RawData, receivers);
packet.write(data);
packet.dump(device);
}
void Signet::Protocol::PacketMaker::deny(QIODevice* device, const QStringList& receivers)
{
Packet packet(Packet::Denial, receivers);
packet.dump(device);
}
void Signet::Protocol::PacketMaker::accept(QIODevice* device, const QStringList& receivers)
{
Packet packet(Packet::Acceptance, receivers);
packet.dump(device);
}
void Signet::Protocol::PacketMaker::ack(QIODevice* device, const QStringList& receivers)
{
Packet packet(Packet::Acceptance, receivers);
packet.dump(device);
}
void Signet::Protocol::PacketMaker::challenge(QIODevice* device, const QByteArray& id, const QStringList& receivers)
{
Packet packet(Packet::ChallengeRequest, receivers);
packet.write(id);
packet.dump(device);
}
void Signet::Protocol::PacketMaker::challengeKey(QIODevice* device, const QByteArray& key, const QStringList& receivers)
{
Packet packet(Packet::ChallengeKey, receivers);
packet.write(key);
packet.dump(device);
}
void Signet::Protocol::PacketMaker::challengeResponse(QIODevice* device, const QByteArray& response, const QStringList& receivers)
{
Packet packet(Packet::ChallengeResponse, receivers);
packet.write(response);
packet.dump(device);
}
void Signet::Protocol::PacketMaker::makeConnection(QIODevice* device, const QStringList& receivers)
{
Packet packet(Packet::ConnectRequest, receivers);
packet.dump(device);
}
void Signet::Protocol::PacketMaker::dropConnection(QIODevice* device, const QStringList& receivers)
{
Packet packet(Packet::DisconnectRequest, receivers);
packet.dump(device);
}
void Signet::Protocol::PacketMaker::unknownReceiver(QIODevice* device, const QStringList& receivers)
{
Packet packet(Packet::UnknownReceiver, receivers);
packet.dump(device);
}
void Signet::Protocol::PacketMaker::unhandledRequest(QIODevice* device, const QStringList& receivers)
{
Packet packet(Packet::UnhandledPacket, receivers);
packet.dump(device);
}
Signet::Protocol::Packet Signet::Protocol::PacketMaker::unwrap(QIODevice* device, ProgressMeter* progressMeter)
{
union
{
char raw[4];
qint32 sectionSize;
qint16 packetType;
qint8 sectionType;
};
QStringList receivers;
if (!readFromBuffer(raw, device, 2))
return Packet();
packetType = qFromBigEndian(packetType);
if (!readFromBuffer(raw, device, 1))
return Packet();
while (sectionType == Packet::Receiver)
{
if (!readFromBuffer(raw, device, 4))
return Packet();
char* buffer = new char[sectionSize + 1];
buffer[sectionSize] = '\0';
sectionSize = qFromBigEndian(sectionSize);
if (!readFromBuffer(buffer, device, sectionSize))
{
delete [] buffer;
return Packet();
}
receivers << QString::fromUtf8(buffer);
delete [] buffer;
if (!readFromBuffer(raw, device, 1))
return Packet();
}
if ((sectionType != Packet::Payload) || !readFromBuffer(raw, device, 4))
return Packet();
char* buffer = new char[sectionSize];
sectionSize = qFromBigEndian(sectionSize);
if (!readFromBuffer(buffer, device, sectionSize, progressMeter))
{
delete [] buffer;
return Packet();
}
Packet packet(packetType, receivers);
packet.write(QByteArray(buffer, sectionSize));
delete [] buffer;
return packet;
}
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