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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This file is part of the KDE project</span>
<a name="l00002"></a>00002 <span class="comment"> *</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 2004 Jakub Stachowski <qbast@go2.pl></span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment"> * modify it under the terms of the GNU Library General Public</span>
<a name="l00007"></a>00007 <span class="comment"> * License as published by the Free Software Foundation; either</span>
<a name="l00008"></a>00008 <span class="comment"> * version 2 of the License, or (at your option) any later version.</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * This library is distributed in the hope that it will be useful,</span>
<a name="l00011"></a>00011 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00012"></a>00012 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00013"></a>00013 <span class="comment"> * Library General Public License for more details.</span>
<a name="l00014"></a>00014 <span class="comment"> *</span>
<a name="l00015"></a>00015 <span class="comment"> * You should have received a copy of the GNU Library General Public License</span>
<a name="l00016"></a>00016 <span class="comment"> * along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00017"></a>00017 <span class="comment"> * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00018"></a>00018 <span class="comment"> * Boston, MA 02110-1301, USA.</span>
<a name="l00019"></a>00019 <span class="comment"> */</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="preprocessor">#include "query.h"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "responder.h"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include "remoteservice.h"</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "sdevent.h"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <kdebug.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <qapplication.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <qtimer.h></span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="preprocessor">#define TIMEOUT_WAN 2000</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define TIMEOUT_LAN 200</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032 <span class="keyword">namespace </span>DNSSD
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034 <span class="preprocessor">#ifdef HAVE_DNSSD </span>
<a name="l00035"></a>00035 <span class="preprocessor"></span><span class="keywordtype">void</span> query_callback (DNSServiceRef, DNSServiceFlags flags, uint32_t, DNSServiceErrorType errorCode,
<a name="l00036"></a>00036 <span class="keyword">const</span> <span class="keywordtype">char</span> *serviceName, <span class="keyword">const</span> <span class="keywordtype">char</span> *regtype, <span class="keyword">const</span> <span class="keywordtype">char</span> *replyDomain, <span class="keywordtype">void</span> *context);
<a name="l00037"></a>00037 <span class="preprocessor">#endif</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span><span class="keyword">class </span>QueryPrivate : <span class="keyword">public</span> Responder
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 <span class="keyword">public</span>:
<a name="l00041"></a>00041 QueryPrivate(<span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& type, <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& domain) : Responder(), m_finished(false),
<a name="l00042"></a>00042 m_domain(domain), m_type(type)
<a name="l00043"></a>00043 {};
<a name="l00044"></a>00044 <span class="keywordtype">bool</span> m_finished;
<a name="l00045"></a>00045 <a class="codeRef" href="qstring.html">QString</a> m_domain;
<a name="l00046"></a>00046 <a class="codeRef" href="qtimer.html">QTimer</a> timeout;
<a name="l00047"></a>00047 <a class="codeRef" href="qstring.html">QString</a> m_type;
<a name="l00048"></a>00048 };
<a name="l00049"></a>00049
<a name="l00050"></a><a class="code" href="classDNSSD_1_1Query.html#ab3e761333505aefef017416d11cece36">00050</a> <a class="code" href="classDNSSD_1_1Query.html#ab3e761333505aefef017416d11cece36" title="Creates new query.">Query::Query</a>(<span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& type, <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& domain)
<a name="l00051"></a>00051 {
<a name="l00052"></a>00052 d = <span class="keyword">new</span> QueryPrivate(type,domain);
<a name="l00053"></a>00053 <a class="codeRef" href="qobject.html#connect">connect</a>(&d->timeout,SIGNAL(timeout()),<span class="keyword">this</span>,SLOT(timeout()));
<a name="l00054"></a>00054 }
<a name="l00055"></a>00055
<a name="l00056"></a>00056
<a name="l00057"></a>00057 Query::~Query()
<a name="l00058"></a>00058 {
<a name="l00059"></a>00059 <span class="keyword">delete</span> d;
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061
<a name="l00062"></a><a class="code" href="classDNSSD_1_1Query.html#abed6cbb52c21b66015d2e0f1281f4b87">00062</a> <span class="keywordtype">bool</span> <a class="code" href="classDNSSD_1_1Query.html#abed6cbb52c21b66015d2e0f1281f4b87" title="Returns TRUE if query is already running.">Query::isRunning</a>()<span class="keyword"> const</span>
<a name="l00063"></a>00063 <span class="keyword"></span>{
<a name="l00064"></a>00064 <span class="keywordflow">return</span> d->isRunning();
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a><a class="code" href="classDNSSD_1_1Query.html#a03f6ec44f0df67eeb055d0a957dfb464">00067</a> <span class="keywordtype">bool</span> <a class="code" href="classDNSSD_1_1Query.html#a03f6ec44f0df67eeb055d0a957dfb464" title="Returns TRUE if all currently announced services has been reported.">Query::isFinished</a>()<span class="keyword"> const</span>
<a name="l00068"></a>00068 <span class="keyword"></span>{
<a name="l00069"></a>00069 <span class="keywordflow">return</span> d->m_finished;
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071
<a name="l00072"></a><a class="code" href="classDNSSD_1_1Query.html#af3bd950a86c3f2a82f229fefcc209c8f">00072</a> <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& <a class="code" href="classDNSSD_1_1Query.html#af3bd950a86c3f2a82f229fefcc209c8f" title="Returns queried domain.">Query::domain</a>()<span class="keyword"> const</span>
<a name="l00073"></a>00073 <span class="keyword"></span>{
<a name="l00074"></a>00074 <span class="keywordflow">return</span> d->m_domain;
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076
<a name="l00077"></a><a class="code" href="classDNSSD_1_1Query.html#a09625dcd2e149600fcf97726a9686dd4">00077</a> <span class="keywordtype">void</span> <a class="code" href="classDNSSD_1_1Query.html#a09625dcd2e149600fcf97726a9686dd4" title="Starts query.">Query::startQuery</a>()
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 <span class="keywordflow">if</span> (d->isRunning()) <span class="keywordflow">return</span>;
<a name="l00080"></a>00080 d->m_finished = <span class="keyword">false</span>;
<a name="l00081"></a>00081 <span class="preprocessor">#ifdef HAVE_DNSSD</span>
<a name="l00082"></a>00082 <span class="preprocessor"></span> DNSServiceRef ref;
<a name="l00083"></a>00083 <span class="keywordflow">if</span> (DNSServiceBrowse(&ref,0,0, d->m_type.ascii(),
<a name="l00084"></a>00084 domainToDNS(d->m_domain),query_callback,<span class="keyword">reinterpret_cast<</span><span class="keywordtype">void</span>*<span class="keyword">></span>(<span class="keyword">this</span>))
<a name="l00085"></a>00085 == kDNSServiceErr_NoError) d->setRef(ref);
<a name="l00086"></a>00086 <span class="preprocessor">#endif</span>
<a name="l00087"></a>00087 <span class="preprocessor"></span> <span class="keywordflow">if</span> (!d->isRunning()) emit <a class="code" href="classDNSSD_1_1Query.html#a8bcffc1973fe37309a69f3748e49ce60" title="Emitted when all announced services has been reported.">finished</a>();
<a name="l00088"></a>00088 <span class="keywordflow">else</span> d->timeout.start(domainIsLocal(d->m_domain) ? TIMEOUT_LAN : TIMEOUT_WAN,<span class="keyword">true</span>);
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090 <span class="keywordtype">void</span> Query::virtual_hook(<span class="keywordtype">int</span>, <span class="keywordtype">void</span>*)
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="keywordtype">void</span> Query::customEvent(<a class="codeRef" href="qcustomevent.html">QCustomEvent</a>* event)
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096 <span class="keywordflow">if</span> (event->type()==QEvent::User+SD_ERROR) {
<a name="l00097"></a>00097 d->stop();
<a name="l00098"></a>00098 d->m_finished=<span class="keyword">false</span>;
<a name="l00099"></a>00099 emit <a class="code" href="classDNSSD_1_1Query.html#a8bcffc1973fe37309a69f3748e49ce60" title="Emitted when all announced services has been reported.">finished</a>();
<a name="l00100"></a>00100 }
<a name="l00101"></a>00101 <span class="keywordflow">if</span> (event->type()==QEvent::User+SD_ADDREMOVE) {
<a name="l00102"></a>00102 RemoteService* svr;
<a name="l00103"></a>00103 AddRemoveEvent *aev = <span class="keyword">static_cast<</span>AddRemoveEvent*<span class="keyword">></span>(<a class="codeRef" href="qobject.html#event">event</a>);
<a name="l00104"></a>00104 <span class="comment">// m_type has useless trailing dot</span>
<a name="l00105"></a>00105 <a class="codeRef" href="qstring.html">QString</a> type=aev->m_type.<a class="codeRef" href="qstring.html#left">left</a>(aev->m_type.length()-1);
<a name="l00106"></a>00106 <span class="comment">// label is badly splitted here - _http _tcp.local. . - rely on decode()</span>
<a name="l00107"></a>00107 <span class="keywordflow">if</span> (d->m_type==<span class="stringliteral">"_services._dns-sd._udp"</span>) svr = <span class="keyword">new</span> RemoteService(aev->m_name+<span class="stringliteral">"."</span>+
<a name="l00108"></a>00108 type+<span class="stringliteral">"."</span>+aev->m_domain);
<a name="l00109"></a>00109 <span class="keywordflow">else</span> svr = <span class="keyword">new</span> RemoteService(aev->m_name, type, aev->m_domain);
<a name="l00110"></a>00110 <span class="keywordflow">if</span> (aev->m_op==AddRemoveEvent::Add) emit <a class="code" href="classDNSSD_1_1Query.html#a95bcd3732a1ddc1aa99ba3e0bfc2a69e" title="Emitted when new service has been discovered.">serviceAdded</a>(svr);
<a name="l00111"></a>00111 <span class="keywordflow">else</span> emit <a class="code" href="classDNSSD_1_1Query.html#aa1b5b2884fbddbda62e755eef27d9cb9" title="Emitted when previously discovered service is not longer published.">serviceRemoved</a>(svr);
<a name="l00112"></a>00112 d->m_finished = aev->m_last;
<a name="l00113"></a>00113 <span class="keywordflow">if</span> (d->m_finished) emit <a class="code" href="classDNSSD_1_1Query.html#a8bcffc1973fe37309a69f3748e49ce60" title="Emitted when all announced services has been reported.">finished</a>();
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keywordtype">void</span> Query::timeout()
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 d->m_finished=<span class="keyword">true</span>;
<a name="l00120"></a>00120 emit <a class="code" href="classDNSSD_1_1Query.html#a8bcffc1973fe37309a69f3748e49ce60" title="Emitted when all announced services has been reported.">finished</a>();
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122 <span class="preprocessor">#ifdef HAVE_DNSSD</span>
<a name="l00123"></a>00123 <span class="preprocessor"></span><span class="keywordtype">void</span> query_callback (DNSServiceRef, DNSServiceFlags flags, uint32_t, DNSServiceErrorType errorCode,
<a name="l00124"></a>00124 <span class="keyword">const</span> <span class="keywordtype">char</span> *serviceName, <span class="keyword">const</span> <span class="keywordtype">char</span> *regtype, <span class="keyword">const</span> <span class="keywordtype">char</span> *replyDomain,
<a name="l00125"></a>00125 <span class="keywordtype">void</span> *context)
<a name="l00126"></a>00126 {
<a name="l00127"></a>00127 <a class="codeRef" href="qobject.html">QObject</a> *obj = <span class="keyword">reinterpret_cast<</span><a class="codeRef" href="qobject.html">QObject</a>*<span class="keyword">></span>(context);
<a name="l00128"></a>00128 <span class="keywordflow">if</span> (errorCode != kDNSServiceErr_NoError) {
<a name="l00129"></a>00129 ErrorEvent err;
<a name="l00130"></a>00130 <a class="codeRef" href="qapplication.html#sendEvent">QApplication::sendEvent</a>(obj, &err);
<a name="l00131"></a>00131 } <span class="keywordflow">else</span> {
<a name="l00132"></a>00132 AddRemoveEvent arev((flags & kDNSServiceFlagsAdd) ? AddRemoveEvent::Add :
<a name="l00133"></a>00133 AddRemoveEvent::Remove, <a class="codeRef" href="qstring.html#fromUtf8">QString::fromUtf8</a>(serviceName), regtype,
<a name="l00134"></a>00134 DNSToDomain(replyDomain), !(flags & kDNSServiceFlagsMoreComing));
<a name="l00135"></a>00135 <a class="codeRef" href="qapplication.html#sendEvent">QApplication::sendEvent</a>(obj, &arev);
<a name="l00136"></a>00136 }
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138 <span class="preprocessor">#endif</span>
<a name="l00139"></a>00139 <span class="preprocessor"></span>}
<a name="l00140"></a>00140 <span class="preprocessor">#include "query.moc"</span>
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<a href="mailto:aaaatrap-425acc3b5374943f@kde.org">Block me</a>
WARNING END
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