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228 lines
6.7 KiB
228 lines
6.7 KiB
/* This file is part of the KDE project
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*
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* Copyright (C) 2004 Jakub Stachowski <qbast@go2.pl>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <signal.h>
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#include <errno.h>
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#include <tqstringlist.h>
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#include <tqfile.h>
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#include "domainbrowser.h"
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#include "responder.h"
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#include "query.h"
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#include "servicebrowser.h"
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#ifdef HAVE_DNSSD
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#include <avahi-client/client.h>
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#endif
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#include <config.h>
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namespace DNSSD
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{
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const TQString ServiceBrowser::AllServices = "_services._dns-sd._udp";
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class ServiceBrowserPrivate
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{
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public:
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ServiceBrowserPrivate() : m_running(false)
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{}
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TQValueList<RemoteService::Ptr> m_services;
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TQValueList<RemoteService::Ptr> m_duringResolve;
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TQStringList m_types;
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DomainBrowser* m_domains;
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int m_flags;
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bool m_running;
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bool m_finished;
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TQDict<Query> resolvers;
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};
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ServiceBrowser::ServiceBrowser(const TQString& type,DomainBrowser* domains,bool autoResolve)
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{
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if (domains) init(type,domains,autoResolve ? AutoResolve : 0);
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else init(type,new DomainBrowser(this),autoResolve ? AutoResolve|AutoDelete : AutoDelete);
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}
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ServiceBrowser::ServiceBrowser(const TQStringList& types,DomainBrowser* domains,int flags)
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{
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if (domains) init(types,domains,flags);
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else init(types,new DomainBrowser(this),flags|AutoDelete);
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}
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void ServiceBrowser::init(const TQStringList& type,DomainBrowser* domains,int flags)
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{
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d = new ServiceBrowserPrivate();
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d->resolvers.setAutoDelete(true);
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d->m_types=type;
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d->m_flags=flags;
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d->m_domains = domains;
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connect(d->m_domains,TQT_SIGNAL(domainAdded(const TQString& )),this,TQT_SLOT(addDomain(const TQString& )));
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connect(d->m_domains,TQT_SIGNAL(domainRemoved(const TQString& )),this,
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TQT_SLOT(removeDomain(const TQString& )));
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}
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ServiceBrowser::ServiceBrowser(const TQString& type,const TQString& domain,bool autoResolve)
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{
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init(type,new DomainBrowser(domain,false,this),autoResolve ? AutoResolve|AutoDelete : AutoDelete);
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}
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ServiceBrowser::ServiceBrowser(const TQString& type,const TQString& domain,int flags)
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{
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init(type,new DomainBrowser(domain,false,this),flags | AutoDelete);
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}
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const ServiceBrowser::State ServiceBrowser::isAvailable()
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{
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#ifdef HAVE_DNSSD
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AvahiClientState s = Responder::self().state();
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#ifdef AVAHI_API_0_6
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return (s==AVAHI_CLIENT_FAILURE) ? Stopped : Working;
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#else
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return (s==AVAHI_CLIENT_S_INVALID || s==AVAHI_CLIENT_DISCONNECTED) ? Stopped : Working;
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#endif
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#else
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return Unsupported;
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#endif
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}
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ServiceBrowser::~ ServiceBrowser()
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{
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if (d->m_flags & AutoDelete) delete d->m_domains;
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delete d;
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}
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const DomainBrowser* ServiceBrowser::browsedDomains() const
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{
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return d->m_domains;
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}
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void ServiceBrowser::serviceResolved(bool success)
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{
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TQObject* sender_obj = const_cast<TQObject*>(TQT_TQOBJECT_CONST(sender()));
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RemoteService* svr = static_cast<RemoteService*>(sender_obj);
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disconnect(svr,TQT_SIGNAL(resolved(bool)),this,TQT_SLOT(serviceResolved(bool)));
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TQValueList<RemoteService::Ptr>::Iterator it = d->m_duringResolve.begin();
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TQValueList<RemoteService::Ptr>::Iterator itEnd = d->m_duringResolve.end();
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while ( it!= itEnd && svr!= (*it)) ++it;
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if (it != itEnd) {
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if (success) {
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d->m_services+=(*it);
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emit serviceAdded(svr);
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}
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d->m_duringResolve.remove(it);
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queryFinished();
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}
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}
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void ServiceBrowser::startBrowse()
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{
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if (d->m_running) return;
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d->m_running=true;
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if (isAvailable()!=Working) return;
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if (d->m_domains->isRunning()) {
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TQStringList::const_iterator itEnd = d->m_domains->domains().end();
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for ( TQStringList::const_iterator it = d->m_domains->domains().begin(); it != itEnd; ++it )
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addDomain(*it);
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} else d->m_domains->startBrowse();
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}
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void ServiceBrowser::gotNewService(RemoteService::Ptr svr)
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{
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if (findDuplicate(svr)==(d->m_services.end())) {
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if (d->m_flags & AutoResolve) {
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connect(svr,TQT_SIGNAL(resolved(bool )),this,TQT_SLOT(serviceResolved(bool )));
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d->m_duringResolve+=svr;
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svr->resolveAsync();
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} else {
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d->m_services+=svr;
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emit serviceAdded(svr);
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}
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}
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}
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void ServiceBrowser::gotRemoveService(RemoteService::Ptr svr)
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{
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TQValueList<RemoteService::Ptr>::Iterator it = findDuplicate(svr);
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if (it!=(d->m_services.end())) {
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emit serviceRemoved(*it);
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d->m_services.remove(it);
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}
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}
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void ServiceBrowser::removeDomain(const TQString& domain)
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{
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while (d->resolvers[domain]) d->resolvers.remove(domain);
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TQValueList<RemoteService::Ptr>::Iterator it = d->m_services.begin();
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while (it!=d->m_services.end())
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// use section to skip possible trailing dot
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if ((*it)->domain().section('.',0) == domain.section('.',0)) {
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emit serviceRemoved(*it);
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it = d->m_services.remove(it);
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} else ++it;
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}
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void ServiceBrowser::addDomain(const TQString& domain)
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{
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if (!d->m_running) return;
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if (!(d->resolvers[domain])) {
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TQStringList::ConstIterator itEnd = d->m_types.end();
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for (TQStringList::ConstIterator it=d->m_types.begin(); it!=itEnd; ++it) {
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Query* b = new Query((*it),domain);
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connect(b,TQT_SIGNAL(serviceAdded(DNSSD::RemoteService::Ptr)),this,
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TQT_SLOT(gotNewService(DNSSD::RemoteService::Ptr)));
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connect(b,TQT_SIGNAL(serviceRemoved(DNSSD::RemoteService::Ptr )),this,
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TQT_SLOT(gotRemoveService(DNSSD::RemoteService::Ptr)));
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connect(b,TQT_SIGNAL(finished()),this,TQT_SLOT(queryFinished()));
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b->startQuery();
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d->resolvers.insert(domain,b);
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}
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}
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}
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void ServiceBrowser::queryFinished()
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{
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if (allFinished()) emit finished();
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}
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bool ServiceBrowser::allFinished()
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{
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if (d->m_duringResolve.count()) return false;
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bool all = true;
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TQDictIterator<Query> it(d->resolvers);
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for ( ; it.current(); ++it) all&=(*it)->isFinished();
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return all;
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}
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const TQValueList<RemoteService::Ptr>& ServiceBrowser::services() const
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{
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return d->m_services;
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}
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void ServiceBrowser::virtual_hook(int, void*)
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{}
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TQValueList<RemoteService::Ptr>::Iterator ServiceBrowser::findDuplicate(RemoteService::Ptr src)
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{
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TQValueList<RemoteService::Ptr>::Iterator itEnd = d->m_services.end();
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for (TQValueList<RemoteService::Ptr>::Iterator it = d->m_services.begin(); it!=itEnd; ++it)
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if ((src->type()==(*it)->type()) && (src->serviceName()==(*it)->serviceName()) &&
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(src->domain() == (*it)->domain())) return it;
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return itEnd;
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}
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}
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#include "servicebrowser.moc"
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