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6** This file is part of the QtNetwork module of the Qt Toolkit.
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39
40#include "qnetworkfile_p.h"
41
42#include <QtCore/QDebug>
43#include <QNetworkReply>
44#include <QtCore/QDateTime>
45#include <QtCore/QFileInfo>
46#include <QtCore/QMetaObject>
47#include <QtCore/QCoreApplication>
48
49QT_BEGIN_NAMESPACE
50
51QNetworkFile::QNetworkFile()
52 : QFile()
53{
54}
55
56QNetworkFile::QNetworkFile(const QString &name)
57 : QFile(name)
58{
59}
60
61void QNetworkFile::open()
62{
63 bool opened = false;
64 QFileInfo fi(fileName());
65 if (fi.isDir()) {
66 QString msg = QCoreApplication::translate(context: "QNetworkAccessFileBackend",
67 key: "Cannot open %1: Path is a directory").arg(a: fileName());
68 emit error(error: QNetworkReply::ContentOperationNotPermittedError, message: msg);
69 } else {
70 emit headerRead(header: QNetworkRequest::LastModifiedHeader, value: QVariant::fromValue(value: fi.lastModified()));
71 emit headerRead(header: QNetworkRequest::ContentLengthHeader, value: QVariant::fromValue(value: fi.size()));
72 opened = QFile::open(flags: QIODevice::ReadOnly | QIODevice::Unbuffered);
73 if (!opened) {
74 QString msg = QCoreApplication::translate(context: "QNetworkAccessFileBackend",
75 key: "Error opening %1: %2").arg(args: fileName(), args: errorString());
76 if (exists())
77 emit error(error: QNetworkReply::ContentAccessDenied, message: msg);
78 else
79 emit error(error: QNetworkReply::ContentNotFoundError, message: msg);
80 }
81 }
82 emit finished(ok: opened);
83}
84
85void QNetworkFile::close()
86{
87 // This override is needed because 'using' keyword cannot be used for slots. And the base
88 // function is not an invokable/slot function.
89 QFile::close();
90}
91
92QT_END_NAMESPACE
93

source code of qtbase/src/network/access/qnetworkfile.cpp