dnssd Library API Documentation

publicservice.cpp

00001 /* This file is part of the KDE project
00002  *
00003  * Copyright (C) 2004 Jakub Stachowski <qbast@go2.pl>
00004  *
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Library General Public
00007  * License as published by the Free Software Foundation; either
00008  * version 2 of the License, or (at your option) any later version.
00009  *
00010  * This library is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Library General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Library General Public License
00016  * along with this library; see the file COPYING.LIB.  If not, write to
00017  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00018  * Boston, MA 02111-1307, USA.
00019  */
00020 
00021 #include "publicservice.h"
00022 #include <netinet/in.h>
00023 #include <qapplication.h>
00024 #include "sdevent.h"
00025 #include "responder.h"
00026 #include "settings.h"
00027 
00028 namespace DNSSD
00029 {
00030 #ifdef HAVE_DNSSD
00031 void publish_callback (DNSServiceRef, DNSServiceFlags, DNSServiceErrorType errorCode, const char *name,
00032                const char*, const char*, void *context);
00033 #endif
00034 class PublicServicePrivate : public Responder
00035 {
00036 public:
00037     PublicServicePrivate() : m_published(false)
00038     {}
00039     bool m_published;
00040 };
00041 
00042 PublicService::PublicService(const QString& name, const QString& type, unsigned int port,
00043                   const QString& domain) 
00044         : QObject(), ServiceBase(name, type, QString::null, domain, port)
00045 {
00046     d = new PublicServicePrivate;
00047     if (domain.isNull()) 
00048         if (Configuration::publishType()==Configuration::EnumPublishType::LAN) m_domain="local.";
00049         else m_domain=Configuration::publishDomain();
00050 }
00051 
00052 
00053 PublicService::~PublicService()
00054 {
00055     stop();
00056     delete d;
00057 }
00058 
00059 void PublicService::setServiceName(const QString& serviceName)
00060 {
00061     m_serviceName = serviceName;
00062     if (d->isRunning()) {
00063         stop();
00064         publishAsync();
00065     }
00066 }
00067 
00068 void PublicService::setDomain(const QString& domain) 
00069 {
00070     m_domain = domain;
00071     if (d->isRunning()) {
00072     stop();
00073     publishAsync();
00074     }
00075 }
00076 
00077 
00078 void PublicService::setType(const QString& type)
00079 {
00080     m_type = type;
00081     if (d->isRunning()) {
00082         stop();
00083         publishAsync();
00084     }
00085 }
00086 
00087 void PublicService::setPort(unsigned short port)
00088 {
00089     m_port = port;
00090     if (d->isRunning()) {
00091         stop();
00092         publishAsync();
00093     }
00094 }
00095 
00096 bool PublicService::isPublished() const
00097 {
00098     return d->m_published;
00099 }
00100 
00101 void PublicService::setTextData(const QMap<QString,QString>& textData)
00102 {
00103     m_textData = textData;
00104     if (d->isRunning()) {
00105         stop();
00106         publishAsync();
00107     }
00108 }
00109 
00110 bool PublicService::publish()
00111 {
00112     publishAsync();
00113     while (d->isRunning() && !d->m_published) d->process();
00114     return d->m_published;
00115 }
00116 
00117 void PublicService::stop()
00118 {
00119     d->stop();
00120     d->m_published = false;
00121 }
00122 
00123 void PublicService::publishAsync()
00124 {
00125     if (d->isRunning()) stop();
00126 #ifdef HAVE_DNSSD
00127     TXTRecordRef txt;
00128     TXTRecordCreate(&txt,0,0);
00129     QMap<QString,QString>::ConstIterator itEnd = m_textData.end();
00130     for (QMap<QString,QString>::ConstIterator it = m_textData.begin(); it!=itEnd ; ++it) {
00131         QCString value = it.data().utf8();
00132         if (TXTRecordSetValue(&txt,it.key().utf8(),value.length(),value)!=kDNSServiceErr_NoError) {
00133             TXTRecordDeallocate(&txt);
00134             emit published(false);
00135             return;
00136         }
00137     }
00138     DNSServiceRef ref;
00139     if (DNSServiceRegister(&ref,0,0,m_serviceName.utf8(),m_type.ascii(),domainToDNS(m_domain),NULL,
00140         htons(m_port),TXTRecordGetLength(&txt),TXTRecordGetBytesPtr(&txt),publish_callback,
00141         reinterpret_cast<void*>(this)) == kDNSServiceErr_NoError) d->setRef(ref);
00142     TXTRecordDeallocate(&txt);
00143 #endif
00144     if (!d->isRunning()) emit published(false);
00145 }
00146 
00147 #ifdef HAVE_DNSSD
00148 void publish_callback (DNSServiceRef, DNSServiceFlags, DNSServiceErrorType errorCode, const char *name,
00149                const char*, const char*, void *context)
00150 {
00151     QObject *obj = reinterpret_cast<QObject*>(context);
00152     if (errorCode != kDNSServiceErr_NoError) {
00153         ErrorEvent err;
00154         QApplication::sendEvent(obj, &err);
00155     } else {
00156         PublishEvent pev(QString::fromUtf8(name));
00157         QApplication::sendEvent(obj, &pev);
00158     }
00159 }
00160 #endif
00161 
00162 
00163 void PublicService::customEvent(QCustomEvent* event)
00164 {
00165     if (event->type()==QEvent::User+SD_ERROR) {
00166         stop();
00167         emit published(false);
00168     }
00169     if (event->type()==QEvent::User+SD_PUBLISH) {
00170         d->m_published=true;
00171         emit published(true);
00172         m_serviceName = static_cast<PublishEvent*>(event)->m_name;
00173     }
00174 }
00175 
00176 void PublicService::virtual_hook(int, void*)
00177 {
00178 }
00179 
00180 }
00181 
00182 #include "publicservice.moc"
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This file is part of the documentation for dnssd Library Version 3.4.0.
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