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| ** 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 |
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| ****************************************************************************/ |
| |
| #include "qqnxnavigatorpps.h" |
| |
| #include <QDebug> |
| #include <private/qcore_unix_p.h> |
| |
| #if defined(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("successfully connected to Navigator. fd=%d", 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() << "sending PPS message:\n" << ppsMessage; |
| |
| // send pps message to navigator |
| errno = 0; |
| int bytes = qt_safe_write(m_fd, ppsMessage.constData(), ppsMessage.size()); |
| if (Q_UNLIKELY(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 (Q_UNLIKELY(bytes == -1)) |
| qFatal("QQNX: failed to read navigator pps, errno=%d", errno); |
| } while (bytes == 0); |
| |
| // ensure data is null terminated |
| buffer[bytes] = '\0'; |
| |
| qNavigatorDebug() << "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 (Q_UNLIKELY(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() << "data=" << ppsData; |
| |
| // tokenize pps data into lines |
| QList<QByteArray> lines = ppsData.split('\n'); |
| |
| // validate pps object |
| if (Q_UNLIKELY(lines.empty() || 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() << "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() << "key=" << key; |
| qNavigatorDebug() << "val=" << value; |
| messageFields[key] = value; |
| } |
| } |
| |
| QT_END_NAMESPACE |