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00021 #include "query.h"
00022 #include "responder.h"
00023 #include "remoteservice.h"
00024 #include "sdevent.h"
00025 #include <tqdatetime.h>
00026 #include <tqapplication.h>
00027 #include <tqtimer.h>
00028
00029 #ifdef HAVE_DNSSD
00030 #include <avahi-client/client.h>
00031 #ifdef AVAHI_API_0_6
00032 #include <avahi-client/lookup.h>
00033 #endif
00034 #endif
00035
00036 #define TIMEOUT_LAN 200
00037
00038 namespace DNSSD
00039 {
00040 #ifdef HAVE_DNSSD
00041 #ifdef AVAHI_API_0_6
00042
00043 void services_callback(AvahiServiceBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* name,
00044 const char* regtype, const char* domain, AvahiLookupResultFlags, void* context);
00045 void types_callback(AvahiServiceTypeBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* regtype,
00046 const char* replyDomain, AvahiLookupResultFlags, void* context);
00047 #else
00048 void services_callback(AvahiServiceBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* name,
00049 const char* regtype, const char* domain, void* context);
00050 void types_callback(AvahiServiceTypeBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* regtype,
00051 const char* replyDomain, void* context);
00052 void domains_callback(AvahiDomainBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* replyDomain,
00053 void* context);
00054 #endif
00055 #endif
00056
00057 enum BrowserType { Types, Services };
00058
00059 class QueryPrivate
00060 {
00061 public:
00062 QueryPrivate(const TQString& type, const TQString& domain) : m_finished(false), m_browser(0),
00063 m_running(false), m_domain(domain), m_type(type) {}
00064
00065 bool m_finished;
00066 BrowserType m_browserType;
00067 void* m_browser;
00068 bool m_running;
00069 TQString m_domain;
00070 TQTimer timeout;
00071 TQString m_type;
00072 };
00073
00074 Query::Query(const TQString& type, const TQString& domain)
00075 {
00076 d = new QueryPrivate(type,domain);
00077 connect(&d->timeout,TQT_SIGNAL(timeout()),this,TQT_SLOT(timeout()));
00078 }
00079
00080
00081 Query::~Query()
00082 {
00083 #ifdef HAVE_DNSSD
00084 if (d->m_browser) {
00085 switch (d->m_browserType) {
00086 case Services: avahi_service_browser_free((AvahiServiceBrowser*)d->m_browser); break;
00087 case Types: avahi_service_type_browser_free((AvahiServiceTypeBrowser*)d->m_browser); break;
00088 }
00089 }
00090 #endif
00091 delete d;
00092 }
00093
00094 bool Query::isRunning() const
00095 {
00096 return d->m_running;
00097 }
00098
00099 bool Query::isFinished() const
00100 {
00101 return d->m_finished;
00102 }
00103
00104 const TQString& Query::domain() const
00105 {
00106 return d->m_domain;
00107 }
00108
00109 void Query::startQuery()
00110 {
00111 if (d->m_running) return;
00112 d->m_finished = false;
00113 if (d->m_type=="_services._dns-sd._udp") {
00114 d->m_browserType = Types;
00115 #ifdef HAVE_DNSSD
00116 #ifdef AVAHI_API_0_6
00117 d->m_browser = avahi_service_type_browser_new(Responder::self().client(), AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
00118 domainToDNS(d->m_domain), (AvahiLookupFlags)0, types_callback, this);
00119 #else
00120 d->m_browser = avahi_service_type_browser_new(Responder::self().client(), AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
00121 d->m_domain.utf8(), types_callback, this);
00122 #endif
00123 #endif
00124 } else {
00125 d->m_browserType = Services;
00126 #ifdef HAVE_DNSSD
00127 #ifdef AVAHI_API_0_6
00128 d->m_browser = avahi_service_browser_new(Responder::self().client(), AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
00129 d->m_type.ascii(),domainToDNS(d->m_domain), (AvahiLookupFlags)0, services_callback,this);
00130 #else
00131 d->m_browser = avahi_service_browser_new(Responder::self().client(), AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
00132 d->m_type.ascii(),d->m_domain.utf8(),services_callback,this);
00133 #endif
00134 #endif
00135 }
00136 if (d->m_browser) {
00137 d->m_running=true;
00138 d->timeout.start(TIMEOUT_LAN,true);
00139 } else emit finished();
00140 }
00141 void Query::virtual_hook(int, void*)
00142 {
00143 }
00144
00145 void Query::customEvent(TQCustomEvent* event)
00146 {
00147 if (event->type()==TQEvent::User+SD_ADDREMOVE) {
00148 d->timeout.start(TIMEOUT_LAN,true);
00149 d->m_finished=false;
00150 AddRemoveEvent *aev = static_cast<AddRemoveEvent*>(event);
00151
00152 RemoteService* svr = new RemoteService(aev->m_name,
00153 aev->m_type,aev->m_domain);
00154 if (aev->m_op==AddRemoveEvent::Add) emit serviceAdded(svr);
00155 else emit serviceRemoved(svr);
00156 }
00157 }
00158
00159 void Query::timeout()
00160 {
00161 d->m_finished=true;
00162 emit finished();
00163 }
00164
00165 #ifdef HAVE_DNSSD
00166 #ifdef AVAHI_API_0_6
00167 void services_callback (AvahiServiceBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event,
00168 const char* serviceName, const char* regtype, const char* replyDomain, AvahiLookupResultFlags, void* context)
00169 #else
00170 void services_callback (AvahiServiceBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event,
00171 const char* serviceName, const char* regtype, const char* replyDomain, void* context)
00172 #endif
00173 {
00174 TQObject *obj = reinterpret_cast<TQObject*>(context);
00175 AddRemoveEvent* arev = new AddRemoveEvent((event==AVAHI_BROWSER_NEW) ? AddRemoveEvent::Add :
00176 AddRemoveEvent::Remove, TQString::fromUtf8(serviceName), regtype,
00177 DNSToDomain(replyDomain));
00178 TQApplication::postEvent(obj, arev);
00179 }
00180
00181 #ifdef AVAHI_API_0_6
00182 void types_callback(AvahiServiceTypeBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* regtype,
00183 const char* replyDomain, AvahiLookupResultFlags, void* context)
00184 #else
00185 void types_callback(AvahiServiceTypeBrowser*, AvahiIfIndex, AvahiProtocol, AvahiBrowserEvent event, const char* regtype,
00186 const char* replyDomain, void* context)
00187 #endif
00188 {
00189 TQObject *obj = reinterpret_cast<TQObject*>(context);
00190 AddRemoveEvent* arev = new AddRemoveEvent((event==AVAHI_BROWSER_NEW) ? AddRemoveEvent::Add :
00191 AddRemoveEvent::Remove, TQString::null, regtype,
00192 DNSToDomain(replyDomain));
00193 TQApplication::postEvent(obj, arev);
00194 }
00195 #endif
00196
00197 }
00198 #include "query.moc"