| /**************************************************************************** |
| ** |
| ** Copyright (C) 2012 Jeremy Lainé <jeremy.laine@m4x.org> |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtNetwork module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
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| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
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| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include <winsock2.h> |
| #include "qdnslookup_p.h" |
| |
| #include <qurl.h> |
| #include <private/qsystemerror_p.h> |
| |
| #include <qt_windows.h> |
| #include <windns.h> |
| #include <memory.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestName, const QHostAddress &nameserver, QDnsLookupReply *reply) |
| { |
| // Perform DNS query. |
| PDNS_RECORD dns_records = 0; |
| const QString requestNameUtf16 = QString::fromUtf8(requestName.data(), requestName.size()); |
| IP4_ARRAY srvList; |
| memset(&srvList, 0, sizeof(IP4_ARRAY)); |
| if (!nameserver.isNull()) { |
| if (nameserver.protocol() == QAbstractSocket::IPv4Protocol) { |
| // The below code is referenced from: http://support.microsoft.com/kb/831226 |
| srvList.AddrCount = 1; |
| srvList.AddrArray[0] = htonl(nameserver.toIPv4Address()); |
| } else if (nameserver.protocol() == QAbstractSocket::IPv6Protocol) { |
| // For supoprting IPv6 nameserver addresses, we'll need to switch |
| // from DnsQuey() to DnsQueryEx() as it supports passing an IPv6 |
| // address in the nameserver list |
| qWarning("%s", QDnsLookupPrivate::msgNoIpV6NameServerAdresses); |
| reply->error = QDnsLookup::ResolverError; |
| reply->errorString = tr(QDnsLookupPrivate::msgNoIpV6NameServerAdresses); |
| return; |
| } |
| } |
| const DNS_STATUS status = DnsQuery_W(reinterpret_cast<const wchar_t*>(requestNameUtf16.utf16()), requestType, DNS_QUERY_STANDARD, &srvList, &dns_records, NULL); |
| switch (status) { |
| case ERROR_SUCCESS: |
| break; |
| case DNS_ERROR_RCODE_FORMAT_ERROR: |
| reply->error = QDnsLookup::InvalidRequestError; |
| reply->errorString = tr("Server could not process query"); |
| return; |
| case DNS_ERROR_RCODE_SERVER_FAILURE: |
| reply->error = QDnsLookup::ServerFailureError; |
| reply->errorString = tr("Server failure"); |
| return; |
| case DNS_ERROR_RCODE_NAME_ERROR: |
| reply->error = QDnsLookup::NotFoundError; |
| reply->errorString = tr("Non existent domain"); |
| return; |
| case DNS_ERROR_RCODE_REFUSED: |
| reply->error = QDnsLookup::ServerRefusedError; |
| reply->errorString = tr("Server refused to answer"); |
| return; |
| default: |
| reply->error = QDnsLookup::InvalidReplyError; |
| reply->errorString = QSystemError(status, QSystemError::NativeError).toString(); |
| return; |
| } |
| |
| // Extract results. |
| for (PDNS_RECORD ptr = dns_records; ptr != NULL; ptr = ptr->pNext) { |
| const QString name = QUrl::fromAce( QString::fromWCharArray( ptr->pName ).toLatin1() ); |
| if (ptr->wType == QDnsLookup::A) { |
| QDnsHostAddressRecord record; |
| record.d->name = name; |
| record.d->timeToLive = ptr->dwTtl; |
| record.d->value = QHostAddress(ntohl(ptr->Data.A.IpAddress)); |
| reply->hostAddressRecords.append(record); |
| } else if (ptr->wType == QDnsLookup::AAAA) { |
| Q_IPV6ADDR addr; |
| memcpy(&addr, &ptr->Data.AAAA.Ip6Address, sizeof(Q_IPV6ADDR)); |
| |
| QDnsHostAddressRecord record; |
| record.d->name = name; |
| record.d->timeToLive = ptr->dwTtl; |
| record.d->value = QHostAddress(addr); |
| reply->hostAddressRecords.append(record); |
| } else if (ptr->wType == QDnsLookup::CNAME) { |
| QDnsDomainNameRecord record; |
| record.d->name = name; |
| record.d->timeToLive = ptr->dwTtl; |
| record.d->value = QUrl::fromAce(QString::fromWCharArray(ptr->Data.Cname.pNameHost).toLatin1()); |
| reply->canonicalNameRecords.append(record); |
| } else if (ptr->wType == QDnsLookup::MX) { |
| QDnsMailExchangeRecord record; |
| record.d->name = name; |
| record.d->exchange = QUrl::fromAce(QString::fromWCharArray(ptr->Data.Mx.pNameExchange).toLatin1()); |
| record.d->preference = ptr->Data.Mx.wPreference; |
| record.d->timeToLive = ptr->dwTtl; |
| reply->mailExchangeRecords.append(record); |
| } else if (ptr->wType == QDnsLookup::NS) { |
| QDnsDomainNameRecord record; |
| record.d->name = name; |
| record.d->timeToLive = ptr->dwTtl; |
| record.d->value = QUrl::fromAce(QString::fromWCharArray(ptr->Data.Ns.pNameHost).toLatin1()); |
| reply->nameServerRecords.append(record); |
| } else if (ptr->wType == QDnsLookup::PTR) { |
| QDnsDomainNameRecord record; |
| record.d->name = name; |
| record.d->timeToLive = ptr->dwTtl; |
| record.d->value = QUrl::fromAce(QString::fromWCharArray(ptr->Data.Ptr.pNameHost).toLatin1()); |
| reply->pointerRecords.append(record); |
| } else if (ptr->wType == QDnsLookup::SRV) { |
| QDnsServiceRecord record; |
| record.d->name = name; |
| record.d->target = QUrl::fromAce(QString::fromWCharArray(ptr->Data.Srv.pNameTarget).toLatin1()); |
| record.d->port = ptr->Data.Srv.wPort; |
| record.d->priority = ptr->Data.Srv.wPriority; |
| record.d->timeToLive = ptr->dwTtl; |
| record.d->weight = ptr->Data.Srv.wWeight; |
| reply->serviceRecords.append(record); |
| } else if (ptr->wType == QDnsLookup::TXT) { |
| QDnsTextRecord record; |
| record.d->name = name; |
| record.d->timeToLive = ptr->dwTtl; |
| for (unsigned int i = 0; i < ptr->Data.Txt.dwStringCount; ++i) { |
| record.d->values << QString::fromWCharArray((ptr->Data.Txt.pStringArray[i])).toLatin1();; |
| } |
| reply->textRecords.append(record); |
| } |
| } |
| |
| DnsRecordListFree(dns_records, DnsFreeRecordList); |
| } |
| |
| QT_END_NAMESPACE |