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/***************************************************************************
**
** Copyright (C) 2012 Research In Motion
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qqnxnavigatorpps.h"
#include <QDebug>
#include <private/qcore_unix_p.h>
#ifdef QQNXNAVIGATOR_DEBUG
#define qNavigatorDebug qDebug
#else
#define qNavigatorDebug QT_NO_QDEBUG_MACRO
#endif
static const char *navigatorControlPath = "/pps/services/navigator/control";
static const int ppsBufferSize = 4096;
QT_BEGIN_NAMESPACE
QQnxNavigatorPps::QQnxNavigatorPps(QObject *parent)
: QQnxAbstractNavigator(parent)
, m_fd(-1)
{
}
QQnxNavigatorPps::~QQnxNavigatorPps()
{
// close connection to navigator
if (m_fd != -1)
qt_safe_close(m_fd);
}
bool QQnxNavigatorPps::openPpsConnection()
{
if (m_fd != -1)
return true;
// open connection to navigator
errno = 0;
m_fd = qt_safe_open(navigatorControlPath, O_RDWR);
if (m_fd == -1) {
qWarning("QQNX: failed to open navigator pps, errno=%d", errno);
return false;
}
qNavigatorDebug() << Q_FUNC_INFO << "successfully connected to Navigator. fd=" << m_fd;
return true;
}
bool QQnxNavigatorPps::requestInvokeUrl(const QByteArray &encodedUrl)
{
if (!openPpsConnection())
return false;
return sendPpsMessage("invoke", encodedUrl);
}
bool QQnxNavigatorPps::sendPpsMessage(const QByteArray &message, const QByteArray &data)
{
QByteArray ppsMessage = "msg::" + message;
if (!data.isEmpty())
ppsMessage += "\ndat::" + data;
ppsMessage += "\n";
qNavigatorDebug() << Q_FUNC_INFO << "sending PPS message:\n" << ppsMessage;
// send pps message to navigator
errno = 0;
int bytes = qt_safe_write(m_fd, ppsMessage.constData(), ppsMessage.size());
if (bytes == -1)
qFatal("QQNX: failed to write navigator pps, errno=%d", errno);
// allocate buffer for pps data
char buffer[ppsBufferSize];
// attempt to read pps data
do {
errno = 0;
bytes = qt_safe_read(m_fd, buffer, ppsBufferSize - 1);
if (bytes == -1)
qFatal("QQNX: failed to read navigator pps, errno=%d", errno);
} while (bytes == 0);
// ensure data is null terminated
buffer[bytes] = '\0';
qNavigatorDebug() << Q_FUNC_INFO << "received PPS message:\n" << buffer;
// process received message
QByteArray ppsData(buffer);
QHash<QByteArray, QByteArray> responseFields;
parsePPS(ppsData, responseFields);
if (responseFields.contains("res") && responseFields.value("res") == message) {
if (responseFields.contains("err")) {
qCritical() << "navigator responded with error: " << responseFields.value("err");
return false;
}
}
return true;
}
void QQnxNavigatorPps::parsePPS(const QByteArray &ppsData, QHash<QByteArray, QByteArray> &messageFields)
{
qNavigatorDebug() << Q_FUNC_INFO << "data=" << ppsData;
// tokenize pps data into lines
QList<QByteArray> lines = ppsData.split('\n');
// validate pps object
if (lines.size() == 0 || lines.at(0) != "@control") {
qFatal("QQNX: unrecognized pps object, data=%s", ppsData.constData());
}
// parse pps object attributes and extract values
for (int i = 1; i < lines.size(); i++) {
// tokenize current attribute
const QByteArray &attr = lines.at(i);
qNavigatorDebug() << Q_FUNC_INFO << "attr=" << attr;
int firstColon = attr.indexOf(':');
if (firstColon == -1) {
// abort - malformed attribute
continue;
}
int secondColon = attr.indexOf(':', firstColon + 1);
if (secondColon == -1) {
// abort - malformed attribute
continue;
}
QByteArray key = attr.left(firstColon);
QByteArray value = attr.mid(secondColon + 1);
qNavigatorDebug() << Q_FUNC_INFO << "key=" << key;
qNavigatorDebug() << Q_FUNC_INFO << "val=" << value;
messageFields[key] = value;
}
}
QT_END_NAMESPACE
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