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00025 #include "config.h"
00026
00027
00028 #include <sys/types.h>
00029 #include <sys/socket.h>
00030 #include <sys/param.h>
00031 #include <errno.h>
00032 #include <netdb.h>
00033 #include <time.h>
00034 #include <arpa/inet.h>
00035 #include <netinet/in.h>
00036 #include <stdlib.h>
00037 #include <unistd.h>
00038
00039
00040 #include <qapplication.h>
00041 #include <qstring.h>
00042 #include <qcstring.h>
00043 #include <qstrlist.h>
00044 #include <qstringlist.h>
00045 #include <qshared.h>
00046 #include <qdatetime.h>
00047 #include <qtimer.h>
00048 #include <qmutex.h>
00049 #include <qguardedptr.h>
00050
00051
00052 #ifdef HAVE_IDNA_H
00053 # include <idna.h>
00054 #endif
00055
00056
00057 #include <klocale.h>
00058
00059
00060 #include "kresolver.h"
00061 #include "kresolver_p.h"
00062 #include "ksocketaddress.h"
00063
00064 #ifdef NEED_MUTEX
00065 #warning "mutex"
00066 QMutex getXXbyYYmutex;
00067 #endif
00068
00069 using namespace KNetwork;
00070 using namespace KNetwork::Internal;
00071
00073
00074
00075 class KNetwork::KResolverEntryPrivate: public QShared
00076 {
00077 public:
00078 KSocketAddress addr;
00079 int socktype;
00080 int protocol;
00081 QString canonName;
00082 QCString encodedName;
00083
00084 inline KResolverEntryPrivate() :
00085 socktype(0), protocol(0)
00086 { }
00087 };
00088
00089
00090 KResolverEntry::KResolverEntry() :
00091 d(0L)
00092 {
00093 }
00094
00095
00096 KResolverEntry::KResolverEntry(const KSocketAddress& addr, int socktype, int protocol,
00097 const QString& canonName, const QCString& encodedName) :
00098 d(new KResolverEntryPrivate)
00099 {
00100 d->addr = addr;
00101 d->socktype = socktype;
00102 d->protocol = protocol;
00103 d->canonName = canonName;
00104 d->encodedName = encodedName;
00105 }
00106
00107
00108 KResolverEntry::KResolverEntry(const struct sockaddr* sa, Q_UINT16 salen, int socktype,
00109 int protocol, const QString& canonName,
00110 const QCString& encodedName) :
00111 d(new KResolverEntryPrivate)
00112 {
00113 d->addr = KSocketAddress(sa, salen);
00114 d->socktype = socktype;
00115 d->protocol = protocol;
00116 d->canonName = canonName;
00117 d->encodedName = encodedName;
00118 }
00119
00120
00121 KResolverEntry::KResolverEntry(const KResolverEntry& that) :
00122 d(0L)
00123 {
00124 *this = that;
00125 }
00126
00127
00128 KResolverEntry::~KResolverEntry()
00129 {
00130 if (d == 0L)
00131 return;
00132
00133 if (d->deref())
00134 delete d;
00135 }
00136
00137
00138 KSocketAddress KResolverEntry::address() const
00139 {
00140 return d ? d->addr : KSocketAddress();
00141 }
00142
00143
00144 Q_UINT16 KResolverEntry::length() const
00145 {
00146 return d ? d->addr.length() : 0;
00147 }
00148
00149
00150 int KResolverEntry::family() const
00151 {
00152 return d ? d->addr.family() : AF_UNSPEC;
00153 }
00154
00155
00156 QString KResolverEntry::canonicalName() const
00157 {
00158 return d ? d->canonName : QString::null;
00159 }
00160
00161
00162 QCString KResolverEntry::encodedName() const
00163 {
00164 return d ? d->encodedName : QCString();
00165 }
00166
00167
00168 int KResolverEntry::socketType() const
00169 {
00170 return d ? d->socktype : 0;
00171 }
00172
00173
00174 int KResolverEntry::protocol() const
00175 {
00176 return d ? d->protocol : 0;
00177 }
00178
00179
00180 KResolverEntry& KResolverEntry::operator= (const KResolverEntry& that)
00181 {
00182
00183 if (that.d)
00184 that.d->ref();
00185
00186 if (d && d->deref())
00187 delete d;
00188
00189 d = that.d;
00190 return *this;
00191 }
00192
00194
00195
00196 class KNetwork::KResolverResultsPrivate
00197 {
00198 public:
00199 QString node, service;
00200 int errorcode, syserror;
00201
00202 KResolverResultsPrivate() :
00203 errorcode(0), syserror(0)
00204 { }
00205 };
00206
00207
00208 KResolverResults::KResolverResults()
00209 : d(new KResolverResultsPrivate)
00210 {
00211 }
00212
00213
00214 KResolverResults::KResolverResults(const KResolverResults& other)
00215 : QValueList<KResolverEntry>(other), d(new KResolverResultsPrivate)
00216 {
00217 *d = *other.d;
00218 }
00219
00220
00221 KResolverResults::~KResolverResults()
00222 {
00223 delete d;
00224 }
00225
00226
00227 KResolverResults&
00228 KResolverResults::operator= (const KResolverResults& other)
00229 {
00230 if (this == &other)
00231 return *this;
00232
00233
00234 *d = *other.d;
00235
00236
00237 QValueList<KResolverEntry>::operator =(other);
00238
00239 return *this;
00240 }
00241
00242
00243 int KResolverResults::error() const
00244 {
00245 return d->errorcode;
00246 }
00247
00248
00249 int KResolverResults::systemError() const
00250 {
00251 return d->syserror;
00252 }
00253
00254
00255 void KResolverResults::setError(int errorcode, int systemerror)
00256 {
00257 d->errorcode = errorcode;
00258 d->syserror = systemerror;
00259 }
00260
00261
00262 QString KResolverResults::nodeName() const
00263 {
00264 return d->node;
00265 }
00266
00267
00268 QString KResolverResults::serviceName() const
00269 {
00270 return d->service;
00271 }
00272
00273
00274 void KResolverResults::setAddress(const QString& node,
00275 const QString& service)
00276 {
00277 d->node = node;
00278 d->service = service;
00279 }
00280
00281 void KResolverResults::virtual_hook( int, void* )
00282 { }
00283
00284
00286
00287
00288 QStringList *KResolver::idnDomains = 0;
00289
00290
00291
00292 KResolver::KResolver(QObject *parent, const char *name)
00293 : QObject(parent, name), d(new KResolverPrivate(this))
00294 {
00295 }
00296
00297
00298 KResolver::KResolver(const QString& nodename, const QString& servicename,
00299 QObject *parent, const char *name)
00300 : QObject(parent, name), d(new KResolverPrivate(this, nodename, servicename))
00301 {
00302 }
00303
00304
00305 KResolver::~KResolver()
00306 {
00307 cancel(false);
00308 delete d;
00309 }
00310
00311
00312 int KResolver::status() const
00313 {
00314 return d->status;
00315 }
00316
00317
00318 int KResolver::error() const
00319 {
00320 return d->errorcode;
00321 }
00322
00323
00324 int KResolver::systemError() const
00325 {
00326 return d->syserror;
00327 }
00328
00329
00330 bool KResolver::isRunning() const
00331 {
00332 return d->status > 0 && d->status < Success;
00333 }
00334
00335
00336 QString KResolver::nodeName() const
00337 {
00338 return d->input.node;
00339 }
00340
00341
00342 QString KResolver::serviceName() const
00343 {
00344 return d->input.service;
00345 }
00346
00347
00348 void KResolver::setNodeName(const QString& nodename)
00349 {
00350
00351 if (!isRunning())
00352 {
00353 d->input.node = nodename;
00354 d->status = Idle;
00355 d->results.setAddress(nodename, d->input.service);
00356 }
00357 }
00358
00359
00360 void KResolver::setServiceName(const QString& service)
00361 {
00362
00363 if (!isRunning())
00364 {
00365 d->input.service = service;
00366 d->status = Idle;
00367 d->results.setAddress(d->input.node, service);
00368 }
00369 }
00370
00371
00372 void KResolver::setAddress(const QString& nodename, const QString& service)
00373 {
00374 setNodeName(nodename);
00375 setServiceName(service);
00376 }
00377
00378
00379 int KResolver::flags() const
00380 {
00381 return d->input.flags;
00382 }
00383
00384
00385 int KResolver::setFlags(int flags)
00386 {
00387 int oldflags = d->input.flags;
00388 if (!isRunning())
00389 {
00390 d->input.flags = flags;
00391 d->status = Idle;
00392 }
00393 return oldflags;
00394 }
00395
00396
00397 void KResolver::setFamily(int families)
00398 {
00399 if (!isRunning())
00400 {
00401 d->input.familyMask = families;
00402 d->status = Idle;
00403 }
00404 }
00405
00406
00407 void KResolver::setSocketType(int type)
00408 {
00409 if (!isRunning())
00410 {
00411 d->input.socktype = type;
00412 d->status = Idle;
00413 }
00414 }
00415
00416
00417 void KResolver::setProtocol(int protonum, const char *name)
00418 {
00419 if (isRunning())
00420 return;
00421
00422
00423
00424
00425
00426
00427 d->input.protocolName = name;
00428 if (protonum == 0 && name != 0L && *name != '\0')
00429 {
00430
00431 d->input.protocol = KResolver::protocolNumber(name);
00432 }
00433 else
00434 d->input.protocol = protonum;
00435 d->status = Idle;
00436 }
00437
00438 bool KResolver::start()
00439 {
00440 if (!isRunning())
00441 {
00442 d->results.empty();
00443
00444
00445 if (d->input.node.isEmpty() && d->input.service.isEmpty())
00446 {
00447 d->status = KResolver::Success;
00448 emitFinished();
00449 }
00450 else
00451 KResolverManager::manager()->enqueue(this, 0L);
00452 }
00453
00454 return true;
00455 }
00456
00457 bool KResolver::wait(int msec)
00458 {
00459 if (!isRunning())
00460 {
00461 emitFinished();
00462 return true;
00463 }
00464
00465 QMutexLocker locker(&d->mutex);
00466
00467 if (!isRunning())
00468 {
00469
00470
00471
00472
00473
00474 emitFinished();
00475 return true;
00476 }
00477 else
00478 {
00479 QTime t;
00480 t.start();
00481
00482 while (!msec || t.elapsed() < msec)
00483 {
00484
00485 d->waiting = true;
00486 if (msec)
00487 KResolverManager::manager()->notifyWaiters.wait(&d->mutex, msec - t.elapsed());
00488 else
00489 KResolverManager::manager()->notifyWaiters.wait(&d->mutex);
00490
00491
00492
00493 if (!isRunning())
00494 {
00495
00496 d->waiting = false;
00497 emitFinished();
00498 return true;
00499 }
00500 }
00501
00502
00503 d->waiting = false;
00504 return false;
00505 }
00506 }
00507
00508 void KResolver::cancel(bool emitSignal)
00509 {
00510 KResolverManager::manager()->dequeue(this);
00511 if (emitSignal)
00512 emitFinished();
00513 }
00514
00515 KResolverResults
00516 KResolver::results() const
00517 {
00518 if (!isRunning())
00519 return d->results;
00520
00521
00522 KResolverResults r;
00523 r.setAddress(d->input.node, d->input.service);
00524 r.setError(d->errorcode, d->syserror);
00525 return r;
00526 }
00527
00528 bool KResolver::event(QEvent* e)
00529 {
00530 if (static_cast<int>(e->type()) == KResolverManager::ResolutionCompleted)
00531 {
00532 emitFinished();
00533 return true;
00534 }
00535
00536 return false;
00537 }
00538
00539 void KResolver::emitFinished()
00540 {
00541 if (isRunning())
00542 d->status = KResolver::Success;
00543
00544 QGuardedPtr<QObject> p = this;
00545
00546 emit finished(d->results);
00547
00548 if (p && d->deleteWhenDone)
00549 deleteLater();
00550 }
00551
00552 QString KResolver::errorString(int errorcode, int syserror)
00553 {
00554
00555 static const char * const messages[] =
00556 {
00557 I18N_NOOP("no error"),
00558 I18N_NOOP("requested family not supported for this host name"),
00559 I18N_NOOP("temporary failure in name resolution"),
00560 I18N_NOOP("non-recoverable failure in name resolution"),
00561 I18N_NOOP("invalid flags"),
00562 I18N_NOOP("memory allocation failure"),
00563 I18N_NOOP("name or service not known"),
00564 I18N_NOOP("requested family not supported"),
00565 I18N_NOOP("requested service not supported for this socket type"),
00566 I18N_NOOP("requested socket type not supported"),
00567 I18N_NOOP("unknown error"),
00568 I18N_NOOP2("1: the i18n'ed system error code, from errno",
00569 "system error: %1")
00570 };
00571
00572
00573 if (errorcode == Canceled)
00574 return i18n("request was canceled");
00575
00576 if (errorcode > 0 || errorcode < SystemError)
00577 return QString::null;
00578
00579 QString msg = i18n(messages[-errorcode]);
00580 if (errorcode == SystemError)
00581 msg.arg(QString::fromLocal8Bit(strerror(syserror)));
00582
00583 return msg;
00584 }
00585
00586 KResolverResults
00587 KResolver::resolve(const QString& host, const QString& service, int flags,
00588 int families)
00589 {
00590 KResolver qres(host, service, qApp, "synchronous KResolver");
00591 qres.setFlags(flags);
00592 qres.setFamily(families);
00593 qres.start();
00594 qres.wait();
00595 return qres.results();
00596 }
00597
00598 bool KResolver::resolveAsync(QObject* userObj, const char *userSlot,
00599 const QString& host, const QString& service,
00600 int flags, int families)
00601 {
00602 KResolver* qres = new KResolver(host, service, qApp, "asynchronous KResolver");
00603 QObject::connect(qres, SIGNAL(finished(KResolverResults)), userObj, userSlot);
00604 qres->setFlags(flags);
00605 qres->setFamily(families);
00606 qres->d->deleteWhenDone = true;
00607 return qres->start();
00608 }
00609
00610 QStrList KResolver::protocolName(int protonum)
00611 {
00612 struct protoent *pe = 0L;
00613 #ifndef HAVE_GETPROTOBYNAME_R
00614 QMutexLocker locker(&getXXbyYYmutex);
00615
00616 pe = getprotobynumber(protonum);
00617
00618 #else
00619 size_t buflen = 1024;
00620 struct protoent protobuf;
00621 char *buf;
00622 do
00623 {
00624 buf = new char[buflen];
00625 # ifdef USE_SOLARIS // Solaris uses a 4 argument getprotobynumber_r which returns struct *protoent or NULL
00626 if ((pe = getprotobynumber_r(protonum, &protobuf, buf, buflen)) && (errno == ERANGE))
00627 # else
00628 if (getprotobynumber_r(protonum, &protobuf, buf, buflen, &pe) == ERANGE)
00629 # endif
00630 {
00631 pe = 0L;
00632 buflen += 1024;
00633 delete [] buf;
00634 }
00635 else
00636 break;
00637 }
00638 while (pe == 0L);
00639 #endif
00640
00641
00642 QStrList lst(true);
00643 if (pe != NULL)
00644 {
00645 lst.append(pe->p_name);
00646 for (char **p = pe->p_aliases; *p; p++)
00647 lst.append(*p);
00648 }
00649
00650 #ifdef HAVE_GETPROTOBYNAME_R
00651 delete [] buf;
00652 #endif
00653
00654 return lst;
00655 }
00656
00657 QStrList KResolver::protocolName(const char *protoname)
00658 {
00659 struct protoent *pe = 0L;
00660 #ifndef HAVE_GETPROTOBYNAME_R
00661 QMutexLocker locker(&getXXbyYYmutex);
00662
00663 pe = getprotobyname(protoname);
00664
00665 #else
00666 size_t buflen = 1024;
00667 struct protoent protobuf;
00668 char *buf;
00669 do
00670 {
00671 buf = new char[buflen];
00672 # ifdef USE_SOLARIS // Solaris uses a 4 argument getprotobyname_r which returns struct *protoent or NULL
00673 if ((pe = getprotobyname_r(protoname, &protobuf, buf, buflen)) && (errno == ERANGE))
00674 # else
00675 if (getprotobyname_r(protoname, &protobuf, buf, buflen, &pe) == ERANGE)
00676 # endif
00677 {
00678 pe = 0L;
00679 buflen += 1024;
00680 delete [] buf;
00681 }
00682 else
00683 break;
00684 }
00685 while (pe == 0L);
00686 #endif
00687
00688
00689 QStrList lst(true);
00690 if (pe != NULL)
00691 {
00692 lst.append(pe->p_name);
00693 for (char **p = pe->p_aliases; *p; p++)
00694 lst.append(*p);
00695 }
00696
00697 #ifdef HAVE_GETPROTOBYNAME_R
00698 delete [] buf;
00699 #endif
00700
00701 return lst;
00702 }
00703
00704 int KResolver::protocolNumber(const char *protoname)
00705 {
00706 struct protoent *pe = 0L;
00707 #ifndef HAVE_GETPROTOBYNAME_R
00708 QMutexLocker locker(&getXXbyYYmutex);
00709
00710 pe = getprotobyname(protoname);
00711
00712 #else
00713 size_t buflen = 1024;
00714 struct protoent protobuf;
00715 char *buf;
00716 do
00717 {
00718 buf = new char[buflen];
00719 # ifdef USE_SOLARIS // Solaris uses a 4 argument getprotobyname_r which returns struct *protoent or NULL
00720 if ((pe = getprotobyname_r(protoname, &protobuf, buf, buflen)) && (errno == ERANGE))
00721 # else
00722 if (getprotobyname_r(protoname, &protobuf, buf, buflen, &pe) == ERANGE)
00723 # endif
00724 {
00725 pe = 0L;
00726 buflen += 1024;
00727 delete [] buf;
00728 }
00729 else
00730 break;
00731 }
00732 while (pe == 0L);
00733 #endif
00734
00735
00736 int protonum = -1;
00737 if (pe != NULL)
00738 protonum = pe->p_proto;
00739
00740 #ifdef HAVE_GETPROTOBYNAME_R
00741 delete [] buf;
00742 #endif
00743
00744 return protonum;
00745 }
00746
00747 int KResolver::servicePort(const char *servname, const char *protoname)
00748 {
00749 struct servent *se = 0L;
00750 #ifndef HAVE_GETSERVBYNAME_R
00751 QMutexLocker locker(&getXXbyYYmutex);
00752
00753 se = getservbyname(servname, protoname);
00754
00755 #else
00756 size_t buflen = 1024;
00757 struct servent servbuf;
00758 char *buf;
00759 do
00760 {
00761 buf = new char[buflen];
00762 # ifdef USE_SOLARIS // Solaris uses a 5 argument getservbyname_r which returns struct *servent or NULL
00763 if ((se = getservbyname_r(servname, protoname, &servbuf, buf, buflen)) && (errno == ERANGE))
00764 # else
00765 if (getservbyname_r(servname, protoname, &servbuf, buf, buflen, &se) == ERANGE)
00766 # endif
00767 {
00768 se = 0L;
00769 buflen += 1024;
00770 delete [] buf;
00771 }
00772 else
00773 break;
00774 }
00775 while (se == 0L);
00776 #endif
00777
00778
00779 int servport = -1;
00780 if (se != NULL)
00781 servport = ntohs(se->s_port);
00782
00783 #ifdef HAVE_GETSERVBYNAME_R
00784 delete [] buf;
00785 #endif
00786
00787 return servport;
00788 }
00789
00790 QStrList KResolver::serviceName(const char* servname, const char *protoname)
00791 {
00792 struct servent *se = 0L;
00793 #ifndef HAVE_GETSERVBYNAME_R
00794 QMutexLocker locker(&getXXbyYYmutex);
00795
00796 se = getservbyname(servname, protoname);
00797
00798 #else
00799 size_t buflen = 1024;
00800 struct servent servbuf;
00801 char *buf;
00802 do
00803 {
00804 buf = new char[buflen];
00805 # ifdef USE_SOLARIS // Solaris uses a 5 argument getservbyname_r which returns struct *servent or NULL
00806 if ((se = getservbyname_r(servname, protoname, &servbuf, buf, buflen)) && (errno == ERANGE))
00807 # else
00808 if (getservbyname_r(servname, protoname, &servbuf, buf, buflen, &se) == ERANGE)
00809 # endif
00810 {
00811 se = 0L;
00812 buflen += 1024;
00813 delete [] buf;
00814 }
00815 else
00816 break;
00817 }
00818 while (se == 0L);
00819 #endif
00820
00821
00822 QStrList lst(true);
00823 if (se != NULL)
00824 {
00825 lst.append(se->s_name);
00826 for (char **p = se->s_aliases; *p; p++)
00827 lst.append(*p);
00828 }
00829
00830 #ifdef HAVE_GETSERVBYNAME_R
00831 delete [] buf;
00832 #endif
00833
00834 return lst;
00835 }
00836
00837 QStrList KResolver::serviceName(int port, const char *protoname)
00838 {
00839 struct servent *se = 0L;
00840 #ifndef HAVE_GETSERVBYPORT_R
00841 QMutexLocker locker(&getXXbyYYmutex);
00842
00843 se = getservbyport(port, protoname);
00844
00845 #else
00846 size_t buflen = 1024;
00847 struct servent servbuf;
00848 char *buf;
00849 do
00850 {
00851 buf = new char[buflen];
00852 # ifdef USE_SOLARIS // Solaris uses a 5 argument getservbyport_r which returns struct *servent or NULL
00853 if ((se = getservbyport_r(port, protoname, &servbuf, buf, buflen)) && (errno == ERANGE))
00854 # else
00855 if (getservbyport_r(port, protoname, &servbuf, buf, buflen, &se) == ERANGE)
00856 # endif
00857 {
00858 se = 0L;
00859 buflen += 1024;
00860 delete [] buf;
00861 }
00862 else
00863 break;
00864 }
00865 while (se == 0L);
00866 #endif
00867
00868
00869 QStrList lst(true);
00870 if (se != NULL)
00871 {
00872 lst.append(se->s_name);
00873 for (char **p = se->s_aliases; *p; p++)
00874 lst.append(*p);
00875 }
00876
00877 #ifdef HAVE_GETSERVBYPORT_R
00878 delete [] buf;
00879 #endif
00880
00881 return lst;
00882 }
00883
00884 QString KResolver::localHostName()
00885 {
00886 QCString name;
00887 int len;
00888
00889 #ifdef MAXHOSTNAMELEN
00890 len = MAXHOSTNAMELEN;
00891 #else
00892 len = 256;
00893 #endif
00894
00895 while (true)
00896 {
00897 name.resize(len);
00898
00899 if (gethostname(name.data(), len - 1) == 0)
00900 {
00901
00902
00903 name[len - 1] = '\0';
00904 break;
00905 }
00906
00907
00908 if (errno == ENAMETOOLONG || errno == EINVAL)
00909 len += 256;
00910 else
00911 {
00912
00913 name = QCString();
00914 }
00915 }
00916
00917 if (name.isEmpty())
00918 return QString::fromLatin1("localhost");
00919
00920 if (name.find('.') == -1)
00921 {
00922
00923
00924 KResolverResults results = resolve(name, "0", CanonName);
00925 if (results.isEmpty())
00926
00927 return QString::fromLatin1("localhost");
00928 else
00929 return results.first().canonicalName();
00930 }
00931
00932 return domainToUnicode(name);
00933 }
00934
00935
00936
00937 static QStringList splitLabels(const QString& unicodeDomain);
00938 static QCString ToASCII(const QString& label);
00939 static QString ToUnicode(const QString& label);
00940
00941 static QStringList *KResolver_initIdnDomains()
00942 {
00943 const char *kde_use_idn = getenv("KDE_USE_IDN");
00944 if (!kde_use_idn)
00945 kde_use_idn = "ac:at:br:cat:ch:cl:cn:de:dk:fi:gr:hu:info:io:is:jp:kr:li:lt:museum:org:no:se:sh:th:tm:tw:vn";
00946 return new QStringList(QStringList::split(':', QString::fromLatin1(kde_use_idn).lower()));
00947 }
00948
00949
00950 QCString KResolver::domainToAscii(const QString& unicodeDomain)
00951 {
00952 if (!idnDomains)
00953 idnDomains = KResolver_initIdnDomains();
00954
00955 QCString retval;
00956
00957
00958
00959
00960
00961 QStringList input = splitLabels(unicodeDomain);
00962
00963
00964 if (input.count() && !idnDomains->contains(input[input.count()-1].lower()))
00965 return input.join(".").lower().latin1();
00966
00967
00968
00969
00970
00971 QStringList::Iterator it = input.begin();
00972 const QStringList::Iterator end = input.end();
00973 for ( ; it != end; ++it)
00974 {
00975 QCString cs = ToASCII(*it);
00976 if (cs.isNull())
00977 return QCString();
00978
00979
00980 if (!retval.isEmpty())
00981 retval += '.';
00982 retval += cs;
00983 }
00984
00985 return retval;
00986 }
00987
00988 QString KResolver::domainToUnicode(const QCString& asciiDomain)
00989 {
00990 return domainToUnicode(QString::fromLatin1(asciiDomain));
00991 }
00992
00993
00994 QString KResolver::domainToUnicode(const QString& asciiDomain)
00995 {
00996 if (asciiDomain.isEmpty())
00997 return asciiDomain;
00998 if (!idnDomains)
00999 idnDomains = KResolver_initIdnDomains();
01000
01001 QString retval;
01002
01003
01004
01005
01006
01007
01008
01009 QStringList input = splitLabels(asciiDomain);
01010
01011
01012 if (input.count() && !idnDomains->contains(input[input.count()-1].lower()))
01013 return asciiDomain.lower();
01014
01015
01016
01017
01018
01019 QStringList::Iterator it;
01020 const QStringList::Iterator end = input.end();
01021 for (it = input.begin(); it != end; ++it)
01022 {
01023 QString label = ToUnicode(*it).lower();
01024
01025
01026 if (!retval.isEmpty())
01027 retval += '.';
01028 retval += label;
01029 }
01030
01031 return retval;
01032 }
01033
01034 QString KResolver::normalizeDomain(const QString& domain)
01035 {
01036 return domainToUnicode(domainToAscii(domain));
01037 }
01038
01039 void KResolver::virtual_hook( int, void* )
01040 { }
01041
01042
01043
01044
01045
01046
01047
01048
01049
01050
01051 static QStringList splitLabels(const QString& unicodeDomain)
01052 {
01053
01054
01055
01056
01057
01058 static const unsigned int separators[] = { 0x002E, 0x3002, 0xFF0E, 0xFF61 };
01059
01060 QStringList lst;
01061 int start = 0;
01062 uint i;
01063 for (i = 0; i < unicodeDomain.length(); i++)
01064 {
01065 unsigned int c = unicodeDomain[i].unicode();
01066
01067 if (c == separators[0] ||
01068 c == separators[1] ||
01069 c == separators[2] ||
01070 c == separators[3])
01071 {
01072
01073 lst << unicodeDomain.mid(start, i - start);
01074 start = i + 1;
01075 }
01076 }
01077 if ((long)i >= start)
01078
01079 lst << unicodeDomain.mid(start, i - start);
01080
01081 return lst;
01082 }
01083
01084 static QCString ToASCII(const QString& label)
01085 {
01086 #ifdef HAVE_IDNA_H
01087
01088
01089
01090 if (label.length() > 64)
01091 return (char*)0L;
01092
01093 if (label.length() == 0)
01094
01095 return QCString("");
01096
01097 QCString retval;
01098 char buf[65];
01099
01100 Q_UINT32* ucs4 = new Q_UINT32[label.length() + 1];
01101
01102 uint i;
01103 for (i = 0; i < label.length(); i++)
01104 ucs4[i] = (unsigned long)label[i].unicode();
01105 ucs4[i] = 0;
01106
01107 if (idna_to_ascii_4i(ucs4, label.length(), buf, 0) == IDNA_SUCCESS)
01108
01109 retval = buf;
01110
01111 delete [] ucs4;
01112 return retval;
01113 #else
01114 return label.latin1();
01115 #endif
01116 }
01117
01118 static QString ToUnicode(const QString& label)
01119 {
01120 #ifdef HAVE_IDNA_H
01121
01122
01123
01124 Q_UINT32 *ucs4_input, *ucs4_output;
01125 size_t outlen;
01126
01127 ucs4_input = new Q_UINT32[label.length() + 1];
01128 for (uint i = 0; i < label.length(); i++)
01129 ucs4_input[i] = (unsigned long)label[i].unicode();
01130
01131
01132 ucs4_output = new Q_UINT32[outlen = label.length()];
01133
01134 idna_to_unicode_44i(ucs4_input, label.length(),
01135 ucs4_output, &outlen,
01136 0);
01137
01138 if (outlen > label.length())
01139 {
01140
01141 delete [] ucs4_output;
01142 ucs4_output = new Q_UINT32[outlen];
01143
01144 idna_to_unicode_44i(ucs4_input, label.length(),
01145 ucs4_output, &outlen,
01146 0);
01147 }
01148
01149
01150 QString result;
01151 result.setLength(outlen);
01152 for (uint i = 0; i < outlen; i++)
01153 result[i] = (unsigned int)ucs4_output[i];
01154
01155 delete [] ucs4_input;
01156 delete [] ucs4_output;
01157
01158 return result;
01159 #else
01160 return label;
01161 #endif
01162 }
01163
01164 #include "kresolver.moc"