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39 
40 #ifndef QDNSLOOKUP_P_H
41 #define QDNSLOOKUP_P_H
42 
43 //
44 //  W A R N I N G
45 //  -------------
46 //
47 // This file is not part of the Qt API.  It exists for the convenience
48 // of the QDnsLookup class.  This header file may change from
49 // version to version without notice, or even be removed.
50 //
51 // We mean it.
52 //
53 
54 #include <QtNetwork/private/qtnetworkglobal_p.h>
55 #include "QtCore/qmutex.h"
56 #include "QtCore/qrunnable.h"
57 #include "QtCore/qsharedpointer.h"
58 #if QT_CONFIG(thread)
59 #include "QtCore/qthreadpool.h"
60 #endif
61 #include "QtNetwork/qdnslookup.h"
62 #include "QtNetwork/qhostaddress.h"
63 #include "private/qobject_p.h"
64 
65 QT_REQUIRE_CONFIG(dnslookup);
66 
67 QT_BEGIN_NAMESPACE
68 
69 //#define QDNSLOOKUP_DEBUG
70 
71 class QDnsLookupRunnable;
72 
73 class QDnsLookupReply
74 {
75 public:
QDnsLookupReply()76     QDnsLookupReply()
77         : error(QDnsLookup::NoError)
78     { }
79 
80     QDnsLookup::Error error;
81     QString errorString;
82 
83     QList<QDnsDomainNameRecord> canonicalNameRecords;
84     QList<QDnsHostAddressRecord> hostAddressRecords;
85     QList<QDnsMailExchangeRecord> mailExchangeRecords;
86     QList<QDnsDomainNameRecord> nameServerRecords;
87     QList<QDnsDomainNameRecord> pointerRecords;
88     QList<QDnsServiceRecord> serviceRecords;
89     QList<QDnsTextRecord> textRecords;
90 };
91 
92 class QDnsLookupPrivate : public QObjectPrivate
93 {
94 public:
QDnsLookupPrivate()95     QDnsLookupPrivate()
96         : isFinished(false)
97         , type(QDnsLookup::A)
98         , runnable(nullptr)
99     { }
100 
101     void _q_lookupFinished(const QDnsLookupReply &reply);
102 
103     static const char *msgNoIpV6NameServerAdresses;
104 
105     bool isFinished;
106     QString name;
107     QDnsLookup::Type type;
108     QHostAddress nameserver;
109     QDnsLookupReply reply;
110     QDnsLookupRunnable *runnable;
111 
112     Q_DECLARE_PUBLIC(QDnsLookup)
113 };
114 
115 class QDnsLookupRunnable : public QObject, public QRunnable
116 {
117     Q_OBJECT
118 
119 public:
QDnsLookupRunnable(QDnsLookup::Type type,const QByteArray & name,const QHostAddress & nameserver)120     QDnsLookupRunnable(QDnsLookup::Type type, const QByteArray &name, const QHostAddress &nameserver)
121         : requestType(type)
122         , requestName(name)
123         , nameserver(nameserver)
124     { }
125     void run() override;
126 
127 signals:
128     void finished(const QDnsLookupReply &reply);
129 
130 private:
131     static void query(const int requestType, const QByteArray &requestName, const QHostAddress &nameserver, QDnsLookupReply *reply);
132     QDnsLookup::Type requestType;
133     QByteArray requestName;
134     QHostAddress nameserver;
135 };
136 
137 #if QT_CONFIG(thread)
138 class QDnsLookupThreadPool : public QThreadPool
139 {
140     Q_OBJECT
141 
142 public:
143     QDnsLookupThreadPool();
144     void start(QRunnable *runnable);
145 
146 private slots:
147     void _q_applicationDestroyed();
148 
149 private:
150     QMutex signalsMutex;
151     bool signalsConnected;
152 };
153 #endif // QT_CONFIG(thread)
154 
155 class QDnsRecordPrivate : public QSharedData
156 {
157 public:
QDnsRecordPrivate()158     QDnsRecordPrivate()
159         : timeToLive(0)
160     { }
161 
162     QString name;
163     quint32 timeToLive;
164 };
165 
166 class QDnsDomainNameRecordPrivate : public QDnsRecordPrivate
167 {
168 public:
QDnsDomainNameRecordPrivate()169     QDnsDomainNameRecordPrivate()
170     { }
171 
172     QString value;
173 };
174 
175 class QDnsHostAddressRecordPrivate : public QDnsRecordPrivate
176 {
177 public:
QDnsHostAddressRecordPrivate()178     QDnsHostAddressRecordPrivate()
179     { }
180 
181     QHostAddress value;
182 };
183 
184 class QDnsMailExchangeRecordPrivate : public QDnsRecordPrivate
185 {
186 public:
QDnsMailExchangeRecordPrivate()187     QDnsMailExchangeRecordPrivate()
188         : preference(0)
189     { }
190 
191     QString exchange;
192     quint16 preference;
193 };
194 
195 class QDnsServiceRecordPrivate : public QDnsRecordPrivate
196 {
197 public:
QDnsServiceRecordPrivate()198     QDnsServiceRecordPrivate()
199         : port(0),
200           priority(0),
201           weight(0)
202     { }
203 
204     QString target;
205     quint16 port;
206     quint16 priority;
207     quint16 weight;
208 };
209 
210 class QDnsTextRecordPrivate : public QDnsRecordPrivate
211 {
212 public:
QDnsTextRecordPrivate()213     QDnsTextRecordPrivate()
214     { }
215 
216     QList<QByteArray> values;
217 };
218 
219 QT_END_NAMESPACE
220 
221 Q_DECLARE_METATYPE(QDnsLookupReply)
222 
223 #endif // QDNSLOOKUP_P_H
224