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/* This file is part of the KDE project
*
* Copyright (C) 2004 Jakub Stachowski <qbast@go2.pl>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "query.h"
#include "responder.h"
#include "remoteservice.h"
#include "sdevent.h"
#include <qdatetime.h>
#include <qapplication.h>
#include <qtimer.h>
#include <avahi-client/client.h>
#ifdef AVAHI_API_0_6
#include <avahi-client/lookup.h>
#endif
#define TIMEOUT_LAN 200
namespace DNSSD
{
#ifdef AVAHI_API_0_6
void services_callback(AvahiServiceBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* name,
const char* regtype, const char* domain, AvahiLookupResultFlags, void* context);
void types_callback(AvahiServiceTypeBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* regtype,
const char* replyDomain, AvahiLookupResultFlags, void* context);
#else
void services_callback(AvahiServiceBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* name,
const char* regtype, const char* domain, void* context);
void types_callback(AvahiServiceTypeBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* regtype,
const char* replyDomain, void* context);
void domains_callback(AvahiDomainBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* replyDomain,
void* context);
#endif
enum BrowserType { Types, Services };
class QueryPrivate
{
public:
QueryPrivate(const QString& type, const QString& domain) : m_finished(false), m_browser(0),
m_running(false), m_domain(domain), m_type(type) {}
bool m_finished;
BrowserType m_browserType;
void* m_browser;
bool m_running;
QString m_domain;
QTimer timeout;
QString m_type;
};
Query::Query(const QString& type, const QString& domain)
{
d = new QueryPrivate(type,domain);
connect(&d->timeout,SIGNAL(timeout()),this,SLOT(timeout()));
}
Query::~Query()
{
if (d->m_browser) {
switch (d->m_browserType) {
case Services: avahi_service_browser_free((AvahiServiceBrowser*)d->m_browser); break;
case Types: avahi_service_type_browser_free((AvahiServiceTypeBrowser*)d->m_browser); break;
}
}
delete d;
}
bool Query::isRunning() const
{
return d->m_running;
}
bool Query::isFinished() const
{
return d->m_finished;
}
const QString& Query::domain() const
{
return d->m_domain;
}
void Query::startQuery()
{
if (d->m_running) return;
d->m_finished = false;
if (d->m_type=="_services._dns-sd._udp") {
d->m_browserType = Types;
#ifdef AVAHI_API_0_6
d->m_browser = avahi_service_type_browser_new(Responder::self().client(), AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
domainToDNS(d->m_domain), (AvahiLookupFlags)0, types_callback, this);
#else
d->m_browser = avahi_service_type_browser_new(Responder::self().client(), AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
d->m_domain.utf8(), types_callback, this);
#endif
} else {
d->m_browserType = Services;
#ifdef AVAHI_API_0_6
d->m_browser = avahi_service_browser_new(Responder::self().client(), AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
d->m_type.ascii(),domainToDNS(d->m_domain), (AvahiLookupFlags)0, services_callback,this);
#else
d->m_browser = avahi_service_browser_new(Responder::self().client(), AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
d->m_type.ascii(),d->m_domain.utf8(),services_callback,this);
#endif
}
if (d->m_browser) {
d->m_running=true;
d->timeout.start(TIMEOUT_LAN,true);
} else emit finished();
}
void Query::virtual_hook(int, void*)
{
}
void Query::customEvent(QCustomEvent* event)
{
if (event->type()==QEvent::User+SD_ADDREMOVE) {
d->timeout.start(TIMEOUT_LAN,true);
d->m_finished=false;
AddRemoveEvent *aev = static_cast<AddRemoveEvent*>(event);
// m_type has useless trailing dot
RemoteService* svr = new RemoteService(aev->m_name,
aev->m_type,aev->m_domain);
if (aev->m_op==AddRemoveEvent::Add) emit serviceAdded(svr);
else emit serviceRemoved(svr);
}
}
void Query::timeout()
{
d->m_finished=true;
emit finished();
}
#ifdef AVAHI_API_0_6
void services_callback (AvahiServiceBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event,
const char* serviceName, const char* regtype, const char* replyDomain, AvahiLookupResultFlags, void* context)
#else
void services_callback (AvahiServiceBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event,
const char* serviceName, const char* regtype, const char* replyDomain, void* context)
#endif
{
QObject *obj = reinterpret_cast<QObject*>(context);
AddRemoveEvent* arev = new AddRemoveEvent((event==AVAHI_BROWSER_NEW) ? AddRemoveEvent::Add :
AddRemoveEvent::Remove, QString::fromUtf8(serviceName), regtype,
DNSToDomain(replyDomain));
QApplication::postEvent(obj, arev);
}
#ifdef AVAHI_API_0_6
void types_callback(AvahiServiceTypeBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* regtype,
const char* replyDomain, AvahiLookupResultFlags, void* context)
#else
void types_callback(AvahiServiceTypeBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* regtype,
const char* replyDomain, void* context)
#endif
{
QObject *obj = reinterpret_cast<QObject*>(context);
AddRemoveEvent* arev = new AddRemoveEvent((event==AVAHI_BROWSER_NEW) ? AddRemoveEvent::Add :
AddRemoveEvent::Remove, QString::null, regtype,
DNSToDomain(replyDomain));
QApplication::postEvent(obj, arev);
}
}
#include "query.moc"
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