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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qbs.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "sessionpacket.h"
#include <tools/qbsassert.h>
#include <tools/stringconstants.h>
#include <tools/version.h>
#include <QtCore/qdebug.h>
#include <QtCore/qjsondocument.h>
#include <QtCore/qjsonvalue.h>
#include <QtCore/qstring.h>
namespace qbs {
namespace Internal {
const QByteArray packetStart = "qbsmsg:";
SessionPacket::Status SessionPacket::parseInput(QByteArray &input)
{
//qDebug() << m_expectedPayloadLength << m_payload << input;
if (m_expectedPayloadLength == -1) {
const int packetStartOffset = input.indexOf(packetStart);
if (packetStartOffset == -1)
return Status::Incomplete;
const int numberOffset = packetStartOffset + packetStart.length();
const int newLineOffset = input.indexOf('\n', numberOffset);
if (newLineOffset == -1)
return Status::Incomplete;
const QByteArray sizeString = input.mid(numberOffset, newLineOffset - numberOffset);
bool isNumber;
const int payloadLen = sizeString.toInt(&isNumber);
if (!isNumber || payloadLen < 0)
return Status::Invalid;
m_expectedPayloadLength = payloadLen;
input.remove(0, newLineOffset + 1);
}
const int bytesToAdd = m_expectedPayloadLength - m_payload.length();
QBS_ASSERT(bytesToAdd >= 0, return Status::Invalid);
m_payload += input.left(bytesToAdd);
input.remove(0, bytesToAdd);
return isComplete() ? Status::Complete : Status::Incomplete;
}
QJsonObject SessionPacket::retrievePacket()
{
QBS_ASSERT(isComplete(), return QJsonObject());
const auto packet = QJsonDocument::fromJson(QByteArray::fromBase64(m_payload)).object();
m_payload.clear();
m_expectedPayloadLength = -1;
return packet;
}
QByteArray SessionPacket::createPacket(const QJsonObject &packet)
{
const QByteArray jsonData = QJsonDocument(packet).toJson(QJsonDocument::Compact).toBase64();
return QByteArray(packetStart).append(QByteArray::number(jsonData.length())).append('\n')
.append(jsonData);
}
QJsonObject SessionPacket::helloMessage()
{
return QJsonObject{
{StringConstants::type(), QLatin1String("hello")},
{QLatin1String("api-level"), 2},
{QLatin1String("api-compat-level"), 2}
};
}
bool SessionPacket::isComplete() const
{
return m_payload.length() == m_expectedPayloadLength;
}
} // namespace Internal
} // namespace qbs
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