qtcreator-tizen-plugin/sdbpacketutils.cpp

/****************************************************************************
**
** Copyright (C) 2013 Jarek Pelczar <jpelczar@gmail.com>
**
** This file is part of Qt Creator.
**
** 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 Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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****************************************************************************/

#include "sdbpacketutils.h"
#include <QString>
#include <QByteArray>
#include <QIODevice>
#include <stdio.h>

namespace Tizen {

const QLatin1String ForwardCreateMessage("host-serial:%1:forward:tcp:%2;tcp:%3");
const QLatin1String ForwardDeleteMessage("host-serial:%1:killforward:tcp:%2;tcp:%3");
const QLatin1String InitializeDeviceMessage("host:transport:%1");

QByteArray SdbPacketUtils::makeRequest(const QString& string)
{
    QByteArray result;
    QByteArray utf8 = string.toUtf8();
    result.reserve(4 + utf8.length());
    char length_code[16];
    qsnprintf(length_code, sizeof(length_code) - 1, "%04X", utf8.length());
    result.reserve(4 + string.length());
    result.append(length_code);
    result.append(utf8);
    return result;
}

QByteArray SdbPacketUtils::makeRequest(const QByteArray& string)
{
    QByteArray result;
    result.reserve(4 + string.length());
    char length_code[16];
    qsnprintf(length_code, sizeof(length_code) - 1, "%04X", string.length());
    result.reserve(4 + string.length());
    result.append(length_code);
    result.append(string);
    return result;
}

bool SdbPacketUtils::parseResponse(const QByteArray& source, bool readDiagnosticString, SdbResponse& response)
{
    if(source.length() < 4)
        return false;
    if(source[0] == 'O' && source[1] == 'K' && source[2] == 'A' && source[3] == 'Y') {
        response.okay = true;
    } else {
        response.okay = false;
        readDiagnosticString = true;
    }

    response.length_read = 4;

    if(readDiagnosticString) {
        if(source.length() < 8)
            return false;
        char packet_length[5];
        memcpy(packet_length, source.constData() + 4, 4);
        packet_length[4] = 0;
        int message_length = 0;
        sscanf(packet_length, "%X", &message_length);
        if((message_length + 8) < source.length())
            return false;
        response.message = QString::fromUtf8(source.constData() + 8, message_length);
        response.length_read += 4 + message_length;
    }

    return true;
}

bool SdbPacketUtils::parseResponse(QIODevice * source, bool readDiagnosticString, SdbResponse& response)
{
    if(source->bytesAvailable() < 4)
        return false;
    char hdr[4];
    source->peek(hdr, 4);
    if(hdr[0] == 'O' && hdr[1] == 'K' && hdr[2] == 'A' && hdr[3] == 'Y') {
        response.okay = true;
    } else {
        response.okay = false;
        readDiagnosticString = true;
    }
    response.length_read = 4;
    if(readDiagnosticString) {
        if(source->bytesAvailable() < 8)
            return false;
        char packet_length[9];
        source->peek(packet_length, 8);
        packet_length[8] = 0;
        int message_length = 0;
        sscanf(packet_length, "%X", &message_length);
        if((message_length + 8) < source->bytesAvailable())
            return false;
        // Discard
        source->read(packet_length, 8);
        QByteArray message = source->read(message_length);
        response.message = QString::fromUtf8(message.constData(), message.length());
        response.length_read += 4 + message_length;
    } else {
        // Discard
        source->read(hdr, 4);
    }
    return true;
}

QByteArray SdbPacketUtils::makeCreateForwardMessage(QString deviceSerial, int localPort, int remotePort)
{
    return makeRequest(QString(ForwardCreateMessage).arg(deviceSerial).arg(localPort).arg(remotePort));
}

QByteArray SdbPacketUtils::makeDeleteForwardMessage(QString deviceSerial, int localPort, int remotePort)
{
    return makeRequest(QString(ForwardDeleteMessage).arg(deviceSerial).arg(localPort).arg(remotePort));
}

QByteArray SdbPacketUtils::makeInitializeDeviceMessage(QString deviceSerial)
{
    return makeRequest(QString(InitializeDeviceMessage).arg(deviceSerial));
}

} // namespace Tizen