kdeconnect-kde/daemon/announcers/avahiannouncer.cpp

109 lines
3.2 KiB
C++

/**
* Copyright 2013 Albert Vaca <albertvaka@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 2 of
* the License or (at your option) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* 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/>.
*/
#include "avahiannouncer.h"
#include "devicelinks/udpdevicelink.h"
#include <QHostInfo>
AvahiAnnouncer::AvahiAnnouncer()
{
QString serviceType = "_kdeconnect._udp";
quint16 port = 10601;
//http://api.kde.org/4.x-api/kdelibs-apidocs/dnssd/html/index.html
service = new DNSSD::PublicService(QHostInfo::localHostName(), serviceType, port);
mUdpSocket = new QUdpSocket();
mUdpSocket->bind(port);
connect(mUdpSocket, SIGNAL(readyRead()), this, SLOT(newConnection()));
qDebug() << "Listening to udp messages";
}
void AvahiAnnouncer::newConnection()
{
qDebug() << "AvahiAnnouncer newConnection";
while (mUdpSocket->hasPendingDatagrams()) {
QByteArray datagram;
datagram.resize(mUdpSocket->pendingDatagramSize());
NetAddress client;
mUdpSocket->readDatagram(datagram.data(), datagram.size(), &(client.ip), &(client.port));
//log.write(datagram);
qDebug() << "AvahiAnnouncer incomming udp datagram: " << datagram;
NetworkPackage np;
NetworkPackage::unserialize(datagram,&np);
if (np.type() == "kdeconnect.identity") {
const QString& id = np.get<QString>("deviceId");
//const QString& name = np.get<QString>("deviceName");
qDebug() << "AvahiAnnouncer creating link to device" << id << "(" << client.ip << "," << client.port << ")";
DeviceLink* dl = new UdpDeviceLink(id, this, client.ip);
connect(dl,SIGNAL(destroyed(QObject*)),this,SLOT(deviceLinkDestroyed(QObject*)));
emit onNewDeviceLink(np, dl);
NetworkPackage::createIdentityPackage(&np);
dl->sendPackage(np);
if (links.contains(id)) {
//Delete old link if we already know it, probably it is down if this happens.
qDebug() << "Destroying old link";
delete links[id];
}
links[id] = dl;
} else {
qDebug() << "Not an identification package (wuh?)";
}
}
}
void AvahiAnnouncer::deviceLinkDestroyed(QObject* deviceLink)
{
const QString& id = ((DeviceLink*)deviceLink)->deviceId();
if (links.contains(id)) links.remove(id);
}
AvahiAnnouncer::~AvahiAnnouncer()
{
delete service;
}
void AvahiAnnouncer::setDiscoverable(bool b)
{
qDebug() << "Avahi announcing";
if (b) service->publishAsync();
}