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 "config.h"
00022 
00023 #include "publicservice.h"
00024 #ifdef HAVE_SYS_TYPES_H
00025 #include <sys/types.h>
00026 #endif
00027 #include <netinet/in.h>
00028 #include <qapplication.h>
00029 #include "sdevent.h"
00030 #include "responder.h"
00031 #include "settings.h"
00032 
00033 namespace DNSSD
00034 {
00035 #ifdef HAVE_DNSSD
00036 void publish_callback (DNSServiceRef, DNSServiceFlags, DNSServiceErrorType errorCode, const char *name,
00037                const char*, const char*, void *context);
00038 #endif
00039 class PublicServicePrivate : public Responder
00040 {
00041 public:
00042     PublicServicePrivate() : m_published(false)
00043     {}
00044     bool m_published;
00045 };
00046 
00047 PublicService::PublicService(const QString& name, const QString& type, unsigned int port,
00048                   const QString& domain) 
00049         : QObject(), ServiceBase(name, type, QString::null, domain, port)
00050 {
00051     d = new PublicServicePrivate;
00052     if (domain.isNull()) 
00053         if (Configuration::publishType()==Configuration::EnumPublishType::LAN) m_domain="local.";
00054         else m_domain=Configuration::publishDomain();
00055 }
00056 
00057 
00058 PublicService::~PublicService()
00059 {
00060     stop();
00061     delete d;
00062 }
00063 
00064 void PublicService::setServiceName(const QString& serviceName)
00065 {
00066     m_serviceName = serviceName;
00067     if (d->isRunning()) {
00068         stop();
00069         publishAsync();
00070     }
00071 }
00072 
00073 void PublicService::setDomain(const QString& domain) 
00074 {
00075     m_domain = domain;
00076     if (d->isRunning()) {
00077     stop();
00078     publishAsync();
00079     }
00080 }
00081 
00082 
00083 void PublicService::setType(const QString& type)
00084 {
00085     m_type = type;
00086     if (d->isRunning()) {
00087         stop();
00088         publishAsync();
00089     }
00090 }
00091 
00092 void PublicService::setPort(unsigned short port)
00093 {
00094     m_port = port;
00095     if (d->isRunning()) {
00096         stop();
00097         publishAsync();
00098     }
00099 }
00100 
00101 bool PublicService::isPublished() const
00102 {
00103     return d->m_published;
00104 }
00105 
00106 void PublicService::setTextData(const QMap<QString,QString>& textData)
00107 {
00108     m_textData = textData;
00109     if (d->isRunning()) {
00110         stop();
00111         publishAsync();
00112     }
00113 }
00114 
00115 bool PublicService::publish()
00116 {
00117     publishAsync();
00118     while (d->isRunning() && !d->m_published) d->process();
00119     return d->m_published;
00120 }
00121 
00122 void PublicService::stop()
00123 {
00124     d->stop();
00125     d->m_published = false;
00126 }
00127 
00128 void PublicService::publishAsync()
00129 {
00130     if (d->isRunning()) stop();
00131 #ifdef HAVE_DNSSD
00132     TXTRecordRef txt;
00133     TXTRecordCreate(&txt,0,0);
00134     QMap<QString,QString>::ConstIterator itEnd = m_textData.end();
00135     for (QMap<QString,QString>::ConstIterator it = m_textData.begin(); it!=itEnd ; ++it) {
00136         QCString value = it.data().utf8();
00137         if (TXTRecordSetValue(&txt,it.key().utf8(),value.length(),value)!=kDNSServiceErr_NoError) {
00138             TXTRecordDeallocate(&txt);
00139             emit published(false);
00140             return;
00141         }
00142     }
00143     DNSServiceRef ref;
00144     if (DNSServiceRegister(&ref,0,0,m_serviceName.utf8(),m_type.ascii(),domainToDNS(m_domain),NULL,
00145         htons(m_port),TXTRecordGetLength(&txt),TXTRecordGetBytesPtr(&txt),publish_callback,
00146         reinterpret_cast<void*>(this)) == kDNSServiceErr_NoError) d->setRef(ref);
00147     TXTRecordDeallocate(&txt);
00148 #endif
00149     if (!d->isRunning()) emit published(false);
00150 }
00151 
00152 #ifdef HAVE_DNSSD
00153 void publish_callback (DNSServiceRef, DNSServiceFlags, DNSServiceErrorType errorCode, const char *name,
00154                const char*, const char*, void *context)
00155 {
00156     QObject *obj = reinterpret_cast<QObject*>(context);
00157     if (errorCode != kDNSServiceErr_NoError) {
00158         ErrorEvent err;
00159         QApplication::sendEvent(obj, &err);
00160     } else {
00161         PublishEvent pev(QString::fromUtf8(name));
00162         QApplication::sendEvent(obj, &pev);
00163     }
00164 }
00165 #endif
00166 
00167 
00168 void PublicService::customEvent(QCustomEvent* event)
00169 {
00170     if (event->type()==QEvent::User+SD_ERROR) {
00171         stop();
00172         emit published(false);
00173     }
00174     if (event->type()==QEvent::User+SD_PUBLISH) {
00175         d->m_published=true;
00176         emit published(true);
00177         m_serviceName = static_cast<PublishEvent*>(event)->m_name;
00178     }
00179 }
00180 
00181 void PublicService::virtual_hook(int, void*)
00182 {
00183 }
00184 
00185 }
00186 
00187 #include "publicservice.moc"
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This file is part of the documentation for dnssd Library Version 3.4.2.
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