src/qt3support/network/q3dns.h
changeset 0 1918ee327afb
child 4 3b1da2848fc7
equal deleted inserted replaced
-1:000000000000 0:1918ee327afb
       
     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the Qt3Support module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #ifndef Q3DNS_H
       
    43 #define Q3DNS_H
       
    44 
       
    45 #include <QtCore/qobject.h>
       
    46 #include <QtNetwork/qhostaddress.h>
       
    47 #include <QtCore/qsocketnotifier.h>
       
    48 #include <QtCore/qstringlist.h>
       
    49 #include <Qt3Support/q3valuelist.h>
       
    50 
       
    51 QT_BEGIN_HEADER
       
    52 
       
    53 QT_BEGIN_NAMESPACE
       
    54 
       
    55 QT_MODULE(Qt3Support)
       
    56 
       
    57 #ifndef QT_NO_DNS
       
    58 
       
    59 //#define Q_DNS_SYNCHRONOUS
       
    60 
       
    61 class Q3DnsPrivate;
       
    62 
       
    63 class Q_COMPAT_EXPORT Q3Dns: public QObject {
       
    64     Q_OBJECT
       
    65 public:
       
    66     enum RecordType {
       
    67 	None,
       
    68 	A, Aaaa,
       
    69 	Mx, Srv,
       
    70 	Cname,
       
    71 	Ptr,
       
    72 	Txt
       
    73     };
       
    74 
       
    75     Q3Dns();
       
    76     Q3Dns( const QString & label, RecordType rr = A );
       
    77     Q3Dns( const QHostAddress & address, RecordType rr = Ptr );
       
    78     virtual ~Q3Dns();
       
    79 
       
    80     // to set/change the query
       
    81     virtual void setLabel( const QString & label );
       
    82     virtual void setLabel( const QHostAddress & address );
       
    83     QString label() const { return l; }
       
    84 
       
    85     virtual void setRecordType( RecordType rr = A );
       
    86     RecordType recordType() const { return t; }
       
    87 
       
    88     // whether something is happening behind the scenes
       
    89     bool isWorking() const;
       
    90 
       
    91     // to query for replies
       
    92     Q3ValueList<QHostAddress> addresses() const;
       
    93 
       
    94     class Q_COMPAT_EXPORT MailServer {
       
    95     public:
       
    96 	MailServer( const QString & n=QString(), Q_UINT16 p=0 )
       
    97 	    :name(n), priority(p) {}
       
    98 	QString name;
       
    99 	Q_UINT16 priority;
       
   100 	Q_DUMMY_COMPARISON_OPERATOR(MailServer)
       
   101     };
       
   102     Q3ValueList<MailServer> mailServers() const;
       
   103 
       
   104     class Q_COMPAT_EXPORT Server {
       
   105     public:
       
   106 	Server(const QString & n=QString(), Q_UINT16 p=0, Q_UINT16 w=0, Q_UINT16 po=0 )
       
   107 	    : name(n), priority(p), weight(w), port(po) {}
       
   108 	QString name;
       
   109 	Q_UINT16 priority;
       
   110 	Q_UINT16 weight;
       
   111 	Q_UINT16 port;
       
   112 	Q_DUMMY_COMPARISON_OPERATOR(Server)
       
   113     };
       
   114     Q3ValueList<Server> servers() const;
       
   115 
       
   116     QStringList hostNames() const;
       
   117 
       
   118     QStringList texts() const;
       
   119 
       
   120     QString canonicalName() const; // ### real-world but uncommon: QStringList
       
   121 
       
   122     QStringList qualifiedNames() const { return n; }
       
   123 
       
   124 #if defined(Q_DNS_SYNCHRONOUS)
       
   125 protected:
       
   126     void connectNotify( const char *signal );
       
   127 #endif
       
   128 
       
   129 Q_SIGNALS:
       
   130     void resultsReady();
       
   131 
       
   132 private Q_SLOTS:
       
   133     void startQuery();
       
   134 
       
   135 private:
       
   136     static void doResInit();
       
   137     void setStartQueryTimer();
       
   138     static QString toInAddrArpaDomain( const QHostAddress &address );
       
   139 #if defined(Q_DNS_SYNCHRONOUS)
       
   140     void doSynchronousLookup();
       
   141 #endif
       
   142 
       
   143     QString l;
       
   144     QStringList n;
       
   145     RecordType t;
       
   146     Q3DnsPrivate * d;
       
   147 
       
   148     friend class Q3DnsAnswer;
       
   149     friend class Q3DnsManager;
       
   150 };
       
   151 
       
   152 
       
   153 // Q3DnsSocket are sockets that are used for DNS lookup
       
   154 
       
   155 class Q3DnsSocket: public QObject {
       
   156     Q_OBJECT
       
   157     // note: Private not public.  This class contains NO public API.
       
   158 protected:
       
   159     Q3DnsSocket( QObject *, const char * );
       
   160     virtual ~Q3DnsSocket();
       
   161 
       
   162 private Q_SLOTS:
       
   163     virtual void cleanCache();
       
   164     virtual void retransmit();
       
   165     virtual void answer();
       
   166 };
       
   167 
       
   168 #endif // QT_NO_DNS
       
   169 
       
   170 QT_END_NAMESPACE
       
   171 
       
   172 QT_END_HEADER
       
   173 
       
   174 #endif // Q3DNS_H