mirror of
https://github.com/keepassxreboot/keepassxc.git
synced 2024-12-25 07:19:42 -05:00
Import QSaveFile from libkdeqt5staging.
It's planned to become part of Qt 5.1.
This commit is contained in:
parent
d826ae5daf
commit
2f98d95b66
@ -28,6 +28,7 @@ set(keepassx_SOURCES
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core/EntryAttributes.cpp
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core/Group.cpp
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core/Metadata.cpp
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core/qsavefile.cpp
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core/TimeInfo.cpp
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core/Tools.cpp
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core/Uuid.cpp
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@ -97,6 +98,7 @@ set(keepassx_MOC
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core/EntryAttributes.h
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core/Group.h
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core/Metadata.h
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core/qsavefile.h
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gui/AboutDialog.h
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gui/Application.h
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gui/ChangeMasterKeyWidget.h
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431
src/core/qsavefile.cpp
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431
src/core/qsavefile.cpp
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@ -0,0 +1,431 @@
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/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qsavefile.h"
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#include "qsavefile_p.h"
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#include <QtCore/QAbstractFileEngine>
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#include <QtCore/QFileInfo>
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#include <QtCore/QTemporaryFile>
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QSaveFilePrivate::QSaveFilePrivate()
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: tempFile(0), error(QFile::NoError)
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{
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}
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QSaveFilePrivate::~QSaveFilePrivate()
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{
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}
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/*!
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\class QSaveFile
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\brief The QSaveFile class provides an interface for safely writing to files.
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\ingroup io
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\reentrant
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QSaveFile is an I/O device for writing text and binary files, without losing
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existing data if the writing operation fails.
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While writing, the contents will be written to a temporary file, and if
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no error happened, commit() will move it to the final file. This ensures that
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no data at the final file is lost in case an error happens while writing,
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and no partially-written file is ever present at the final location. Always
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use QSaveFile when saving entire documents to disk.
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QSaveFile automatically detects errors while writing, such as the full partition
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situation, where write() cannot write all the bytes. It will remember that
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an error happened, and will discard the temporary file in commit().
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Much like with QFile, the file is opened with open(). Data is usually read
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and written using QDataStream or QTextStream, but you can also call the
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QIODevice-inherited functions read(), readLine(), readAll(), write().
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Unlike QFile, calling close() is not allowed. commit() replaces it. If commit()
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was not called and the QSaveFile instance is destroyed, the temporary file is
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discarded.
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\sa QTextStream, QDataStream, QFileInfo, QDir, QFile, QTemporaryFile
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*/
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/*!
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\internal
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*/
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QSaveFile::QSaveFile()
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: QIODevice(), d_ptr(new QSaveFilePrivate)
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{
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}
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/*!
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Constructs a new file object with the given \a parent.
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*/
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QSaveFile::QSaveFile(QObject *parent)
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: QIODevice(parent), d_ptr(new QSaveFilePrivate)
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{
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}
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/*!
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Constructs a new file object to represent the file with the given \a name.
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*/
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QSaveFile::QSaveFile(const QString &name)
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: QIODevice(0), d_ptr(new QSaveFilePrivate)
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{
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Q_D(QSaveFile);
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d->fileName = name;
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}
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/*!
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Constructs a new file object with the given \a parent to represent the
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file with the specified \a name.
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*/
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QSaveFile::QSaveFile(const QString &name, QObject *parent)
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: QIODevice(parent), d_ptr(new QSaveFilePrivate)
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{
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Q_D(QSaveFile);
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d->fileName = name;
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}
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/*!
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Destroys the file object, discarding the saved contents unless commit() was called.
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*/
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QSaveFile::~QSaveFile()
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{
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Q_D(QSaveFile);
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if (d->tempFile) {
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d->tempFile->setAutoRemove(true);
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delete d->tempFile;
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}
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QIODevice::close();
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}
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/*!
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Returns false since temporary files support random access.
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\sa QIODevice::isSequential()
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*/
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bool QSaveFile::isSequential() const
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{
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return false;
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}
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/*!
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Returns the file error status.
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The I/O device status returns an error code. For example, if open()
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returns false, or a read/write operation returns -1, this function can
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be called to find out the reason why the operation failed.
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Unlike QFile which clears the error on the next operation, QSaveFile remembers
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the error until the file is closed, in order to discard the file contents in close().
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\sa unsetError()
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*/
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QFile::FileError QSaveFile::error() const
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{
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return d_func()->error;
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}
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/*!
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Sets the file's error to QFile::NoError.
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This will make QSaveFile forget that an error happened during saving, so you
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probably don't want to call this, unless you're really sure that you want to
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save the file anyway.
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\sa error()
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*/
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void QSaveFile::unsetError()
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{
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d_func()->error = QFile::NoError;
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setErrorString(QString());
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}
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/*!
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Returns the name set by setFileName() or to the QSaveFile
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constructor.
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\sa setFileName()
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*/
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QString QSaveFile::fileName() const
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{
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return d_func()->fileName;
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}
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/*!
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Sets the \a name of the file. The name can have no path, a
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relative path, or an absolute path.
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\sa QFile::setFileName(), fileName()
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*/
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void QSaveFile::setFileName(const QString &name)
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{
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d_func()->fileName = name;
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}
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/*!
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Opens the file using OpenMode \a mode, returning true if successful;
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otherwise false.
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Important: the \a mode must be QIODevice::WriteOnly.
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It may also have additional flags, such as QIODevice::Text and QIODevice::Unbuffered.
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QIODevice::ReadWrite and QIODevice::Append are not supported at the moment.
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\sa QIODevice::OpenMode, setFileName()
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*/
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bool QSaveFile::open(OpenMode mode)
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{
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Q_D(QSaveFile);
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if (isOpen()) {
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qWarning("QSaveFile::open: File (%s) already open", qPrintable(fileName()));
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return false;
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}
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unsetError();
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if ((mode & (ReadOnly | WriteOnly)) == 0) {
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qWarning("QSaveFile::open: Open mode not specified");
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return false;
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}
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// In the future we could implement Append and ReadWrite by copying from the existing file to the temp file...
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if ((mode & ReadOnly) || (mode & Append)) {
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qWarning("QSaveFile::open: Unsupported open mode %d", int(mode));
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return false;
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}
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// check if existing file is writable
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QFileInfo existingFile(d->fileName);
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if (existingFile.exists() && !existingFile.isWritable()) {
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d->error = QFile::WriteError;
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setErrorString(QSaveFile::tr("Existing file %1 is not writable").arg(d->fileName));
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return false;
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}
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d->tempFile = new QTemporaryFile;
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d->tempFile->setAutoRemove(false);
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d->tempFile->setFileTemplate(d->fileName);
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if (!d->tempFile->open()) {
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d->error = d->tempFile->error();
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setErrorString(d->tempFile->errorString());
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delete d->tempFile;
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d->tempFile = 0;
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return false;
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}
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QIODevice::open(mode);
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if (existingFile.exists())
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d->tempFile->setPermissions(existingFile.permissions());
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return true;
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}
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/*!
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\reimp
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Cannot be called.
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Call commit() instead.
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*/
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void QSaveFile::close()
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{
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qFatal("QSaveFile::close called");
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}
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/*
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Commits the changes to disk, if all previous writes were successful.
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It is mandatory to call this at the end of the saving operation, otherwise the file will be
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discarded.
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If an error happened during writing, deletes the temporary file and returns false.
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Otherwise, renames it to the final fileName and returns true on success.
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Finally, closes the device.
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\sa cancelWriting()
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*/
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bool QSaveFile::commit()
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{
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Q_D(QSaveFile);
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if (!d->tempFile)
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return false;
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Q_ASSERT(isOpen());
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QIODevice::close(); // flush and close
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if (d->error != QFile::NoError) {
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d->tempFile->remove();
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unsetError();
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delete d->tempFile;
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d->tempFile = 0;
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return false;
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}
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// atomically replace old file with new file
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// Can't use QFile::rename for that, must use the file engine directly
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// But that's not available in Qt5, nor is QTemporaryFileEngine
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// (used by the Qt5-QFileDevice-based QSaveFile).
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// So we have to do it by hand (non portable) for now.
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d->tempFile->close();
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#if 1
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QAbstractFileEngine* fileEngine = d->tempFile->fileEngine();
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Q_ASSERT(fileEngine);
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if (!fileEngine->rename(d->fileName)) {
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d->error = fileEngine->error();
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setErrorString(fileEngine->errorString());
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#else
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if (::rename(QFile::encodeName(d->tempFile->fileName()).constData(), QFile::encodeName(d->fileName).constData()) != 0) {
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d->error = QFile::RenameError;
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setErrorString(QString::fromLocal8Bit(strerror(errno)));
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#endif
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d->tempFile->remove();
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delete d->tempFile;
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d->tempFile = 0;
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return false;
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}
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delete d->tempFile;
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d->tempFile = 0;
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return true;
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}
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/*!
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Sets an error code so that commit() discards the temporary file.
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Further write operations are possible after calling this method, but none
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of it will have any effect, the written file will be discarded.
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\sa commit()
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*/
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void QSaveFile::cancelWriting()
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{
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if (!isOpen())
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return;
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d_func()->error = QFile::WriteError;
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setErrorString(QSaveFile::tr("Writing canceled by application"));
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}
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/*!
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Returns the size of the file.
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\sa QFile::size()
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*/
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qint64 QSaveFile::size() const
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{
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Q_D(const QSaveFile);
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return d->tempFile ? d->tempFile->size() : qint64(-1);
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}
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/*!
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\reimp
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*/
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qint64 QSaveFile::pos() const
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{
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Q_D(const QSaveFile);
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return d->tempFile ? d->tempFile->pos() : qint64(-1);
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}
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/*!
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\reimp
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*/
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bool QSaveFile::seek(qint64 offset)
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{
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Q_D(QSaveFile);
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return d->tempFile ? d->tempFile->seek(offset) : false;
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}
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/*!
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\reimp
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*/
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bool QSaveFile::atEnd() const
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{
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Q_D(const QSaveFile);
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return d->tempFile ? d->tempFile->atEnd() : true;
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}
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/*!
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Flushes any buffered data to the file. Returns true if successful;
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otherwise returns false.
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*/
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bool QSaveFile::flush()
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{
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Q_D(QSaveFile);
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if (d->tempFile) {
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if (!d->tempFile->flush()) {
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d->error = d->tempFile->error();
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setErrorString(d->tempFile->errorString());
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return false;
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}
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return true;
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}
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return false;
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}
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/*!
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Returns the file handle of the temporary file.
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\sa QFile::handle()
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*/
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int QSaveFile::handle() const
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{
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Q_D(const QSaveFile);
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return d->tempFile ? d->tempFile->handle() : -1;
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}
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/*!
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\reimp
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*/
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qint64 QSaveFile::readData(char *data, qint64 maxlen)
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{
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Q_D(QSaveFile);
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return d->tempFile ? d->tempFile->read(data, maxlen) : -1;
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}
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/*!
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\reimp
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*/
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qint64 QSaveFile::writeData(const char *data, qint64 len)
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{
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Q_D(QSaveFile);
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if (!d->tempFile)
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return -1;
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const qint64 written = d->tempFile->write(data, len);
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if (written != len) {
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d->error = QFile::WriteError;
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setErrorString(QSaveFile::tr("Partial write. Partition full?"));
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}
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return written;
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}
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|
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/*!
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\reimp
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*/
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qint64 QSaveFile::readLineData(char *data, qint64 maxlen)
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{
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Q_D(QSaveFile);
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return d->tempFile ? d->tempFile->readLine(data, maxlen) : -1;
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}
|
105
src/core/qsavefile.h
Normal file
105
src/core/qsavefile.h
Normal file
@ -0,0 +1,105 @@
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/****************************************************************************
|
||||
**
|
||||
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
|
||||
** Contact: http://www.qt-project.org/
|
||||
**
|
||||
** This file is part of the QtCore module of the Qt Toolkit.
|
||||
**
|
||||
** $QT_BEGIN_LICENSE:LGPL$
|
||||
** GNU Lesser General Public License Usage
|
||||
** This file may be used under the terms of the GNU Lesser General Public
|
||||
** License version 2.1 as published by the Free Software Foundation and
|
||||
** appearing in the file LICENSE.LGPL included in the packaging of this
|
||||
** file. Please review the following information to ensure the GNU Lesser
|
||||
** General Public License version 2.1 requirements will be met:
|
||||
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
||||
**
|
||||
** In addition, as a special exception, Nokia gives you certain additional
|
||||
** rights. These rights are described in the Nokia Qt LGPL Exception
|
||||
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
||||
**
|
||||
** GNU General Public License Usage
|
||||
** Alternatively, this file may be used under the terms of the GNU General
|
||||
** Public License version 3.0 as published by the Free Software Foundation
|
||||
** and appearing in the file LICENSE.GPL included in the packaging of this
|
||||
** file. Please review the following information to ensure the GNU General
|
||||
** Public License version 3.0 requirements will be met:
|
||||
** http://www.gnu.org/copyleft/gpl.html.
|
||||
**
|
||||
** Other Usage
|
||||
** Alternatively, this file may be used in accordance with the terms and
|
||||
** conditions contained in a signed written agreement between you and Nokia.
|
||||
**
|
||||
**
|
||||
**
|
||||
**
|
||||
**
|
||||
**
|
||||
** $QT_END_LICENSE$
|
||||
**
|
||||
****************************************************************************/
|
||||
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#ifndef QSAVEFILE_H
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#define QSAVEFILE_H
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#include <QtCore/QFile>
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#include <QtCore/QString>
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#ifdef open
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||||
#error qsavefile.h must be included before any header file that defines open
|
||||
#endif
|
||||
|
||||
class QAbstractFileEngine;
|
||||
class QSaveFilePrivate;
|
||||
|
||||
class QSaveFile : public QIODevice
|
||||
{
|
||||
Q_OBJECT
|
||||
Q_DECLARE_PRIVATE(QSaveFile)
|
||||
|
||||
public:
|
||||
|
||||
QSaveFile();
|
||||
explicit QSaveFile(const QString &name);
|
||||
explicit QSaveFile(QObject *parent);
|
||||
QSaveFile(const QString &name, QObject *parent);
|
||||
~QSaveFile();
|
||||
|
||||
QFile::FileError error() const;
|
||||
void unsetError();
|
||||
|
||||
QString fileName() const;
|
||||
void setFileName(const QString &name);
|
||||
|
||||
bool isSequential() const;
|
||||
|
||||
virtual bool open(OpenMode flags);
|
||||
bool commit();
|
||||
|
||||
void cancelWriting();
|
||||
|
||||
qint64 size() const;
|
||||
qint64 pos() const;
|
||||
bool seek(qint64 offset);
|
||||
bool atEnd() const;
|
||||
bool flush();
|
||||
|
||||
bool resize(qint64 sz);
|
||||
|
||||
int handle() const;
|
||||
|
||||
protected:
|
||||
qint64 readData(char *data, qint64 maxlen);
|
||||
qint64 writeData(const char *data, qint64 len);
|
||||
qint64 readLineData(char *data, qint64 maxlen);
|
||||
|
||||
private:
|
||||
virtual void close();
|
||||
|
||||
private:
|
||||
Q_DISABLE_COPY(QSaveFile)
|
||||
|
||||
QSaveFilePrivate* const d_ptr;
|
||||
};
|
||||
|
||||
#endif // QSAVEFILE_H
|
71
src/core/qsavefile_p.h
Normal file
71
src/core/qsavefile_p.h
Normal file
@ -0,0 +1,71 @@
|
||||
/****************************************************************************
|
||||
**
|
||||
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
|
||||
** Contact: http://www.qt-project.org/
|
||||
**
|
||||
** This file is part of the QtCore module of the Qt Toolkit.
|
||||
**
|
||||
** $QT_BEGIN_LICENSE:LGPL$
|
||||
** GNU Lesser General Public License Usage
|
||||
** This file may be used under the terms of the GNU Lesser General Public
|
||||
** License version 2.1 as published by the Free Software Foundation and
|
||||
** appearing in the file LICENSE.LGPL included in the packaging of this
|
||||
** file. Please review the following information to ensure the GNU Lesser
|
||||
** General Public License version 2.1 requirements will be met:
|
||||
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
||||
**
|
||||
** In addition, as a special exception, Nokia gives you certain additional
|
||||
** rights. These rights are described in the Nokia Qt LGPL Exception
|
||||
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
||||
**
|
||||
** GNU General Public License Usage
|
||||
** Alternatively, this file may be used under the terms of the GNU General
|
||||
** Public License version 3.0 as published by the Free Software Foundation
|
||||
** and appearing in the file LICENSE.GPL included in the packaging of this
|
||||
** file. Please review the following information to ensure the GNU General
|
||||
** Public License version 3.0 requirements will be met:
|
||||
** http://www.gnu.org/copyleft/gpl.html.
|
||||
**
|
||||
** Other Usage
|
||||
** Alternatively, this file may be used in accordance with the terms and
|
||||
** conditions contained in a signed written agreement between you and Nokia.
|
||||
**
|
||||
**
|
||||
**
|
||||
**
|
||||
**
|
||||
**
|
||||
** $QT_END_LICENSE$
|
||||
**
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef QSAVEFILE_P_H
|
||||
#define QSAVEFILE_P_H
|
||||
|
||||
//
|
||||
// W A R N I N G
|
||||
// -------------
|
||||
//
|
||||
// This file is not part of the Qt API. It exists purely as an
|
||||
// implementation detail. This header file may change from version to
|
||||
// version without notice, or even be removed.
|
||||
//
|
||||
// We mean it.
|
||||
//
|
||||
|
||||
#include <QtCore/QTemporaryFile>
|
||||
|
||||
class QSaveFilePrivate
|
||||
{
|
||||
public:
|
||||
QSaveFilePrivate();
|
||||
~QSaveFilePrivate();
|
||||
|
||||
QString fileName;
|
||||
QTemporaryFile *tempFile;
|
||||
|
||||
QFile::FileError error;
|
||||
};
|
||||
|
||||
#endif // QSAVEFILE_P_H
|
||||
|
@ -146,6 +146,9 @@ add_unit_test(NAME testdeletedobjects SOURCES TestDeletedObjects.cpp MOCS TestDe
|
||||
add_unit_test(NAME testkeepass1reader SOURCES TestKeePass1Reader.cpp MOCS TestKeePass1Reader.h
|
||||
LIBS ${TEST_LIBRARIES})
|
||||
|
||||
add_unit_test(NAME testqsavefile SOURCES TestQSaveFile.cpp MOCS TestQSaveFile.h
|
||||
LIBS ${TEST_LIBRARIES})
|
||||
|
||||
if(WITH_GUI_TESTS)
|
||||
add_subdirectory(gui)
|
||||
endif(WITH_GUI_TESTS)
|
||||
|
192
tests/TestQSaveFile.cpp
Normal file
192
tests/TestQSaveFile.cpp
Normal file
@ -0,0 +1,192 @@
|
||||
/*
|
||||
* Copyright (C) 2012 Felix Geyer <debfx@fobos.de>
|
||||
* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 2 or (at your option)
|
||||
* version 3 of the License.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include "TestQSaveFile.h"
|
||||
|
||||
#include <QtTest/QtTest>
|
||||
|
||||
#include <unistd.h>
|
||||
|
||||
#if defined(Q_OS_WIN)
|
||||
# include <windows.h>
|
||||
#endif
|
||||
|
||||
#include "tests.h"
|
||||
#include "core/qsavefile.h"
|
||||
|
||||
class DirCleanup
|
||||
{
|
||||
public:
|
||||
DirCleanup(const QString& dir, const QString& filePrefix) : m_dir(dir), m_filePrefix(filePrefix) {}
|
||||
~DirCleanup() {
|
||||
QDir dir(m_dir);
|
||||
QStringList files = dir.entryList(QStringList() << (m_filePrefix + "*"), QDir::Files);
|
||||
Q_FOREACH (const QString& file, files) {
|
||||
QFile::remove(m_dir + "/" + file);
|
||||
}
|
||||
|
||||
QDir().rmdir(m_dir);
|
||||
}
|
||||
|
||||
private:
|
||||
QString m_dir;
|
||||
QString m_filePrefix;
|
||||
};
|
||||
|
||||
void TestQSaveFile::transactionalWrite()
|
||||
{
|
||||
const QString dir = tmpDir();
|
||||
const QString targetFile = dir + QString::fromLatin1("/outfile");
|
||||
DirCleanup dirCleanup(dir, "outfile");
|
||||
QFile::remove(targetFile);
|
||||
QSaveFile file(targetFile);
|
||||
QVERIFY(file.open(QIODevice::WriteOnly));
|
||||
QVERIFY(file.isOpen());
|
||||
QCOMPARE(file.fileName(), targetFile);
|
||||
QVERIFY(!QFile::exists(targetFile));
|
||||
|
||||
QTextStream ts(&file);
|
||||
ts << "This is test data one.\n";
|
||||
ts.flush();
|
||||
QCOMPARE(file.error(), QFile::NoError);
|
||||
QVERIFY(!QFile::exists(targetFile));
|
||||
|
||||
QVERIFY(file.commit());
|
||||
QVERIFY(QFile::exists(targetFile));
|
||||
QCOMPARE(file.fileName(), targetFile);
|
||||
|
||||
// Check that we can reuse a QSaveFile object
|
||||
// (and test the case of an existing target file)
|
||||
QVERIFY(file.open(QIODevice::WriteOnly));
|
||||
QCOMPARE(file.write("Hello"), 5LL);
|
||||
QVERIFY(file.commit());
|
||||
|
||||
QFile reader(targetFile);
|
||||
QVERIFY(reader.open(QIODevice::ReadOnly));
|
||||
QCOMPARE(QString::fromLatin1(reader.readAll().constData()), QString::fromLatin1("Hello"));
|
||||
reader.close();
|
||||
|
||||
QVERIFY(QFile::remove(targetFile));
|
||||
}
|
||||
|
||||
void TestQSaveFile::autoFlush()
|
||||
{
|
||||
const QString dir = tmpDir();
|
||||
const QString targetFile = dir + QString::fromLatin1("/outfile");
|
||||
DirCleanup dirCleanup(dir, "outfile");
|
||||
QFile::remove(targetFile);
|
||||
QSaveFile file(targetFile);
|
||||
QVERIFY(file.open(QIODevice::WriteOnly));
|
||||
|
||||
QTextStream ts(&file);
|
||||
ts << "Auto-flush.";
|
||||
// no flush
|
||||
QVERIFY(file.commit()); // close will emit aboutToClose, which will flush the stream
|
||||
QFile reader(targetFile);
|
||||
QVERIFY(reader.open(QIODevice::ReadOnly));
|
||||
QCOMPARE(QString::fromLatin1(reader.readAll().constData()), QString::fromLatin1("Auto-flush."));
|
||||
|
||||
QVERIFY(QFile::remove(targetFile));
|
||||
}
|
||||
|
||||
void TestQSaveFile::transactionalWriteNoPermissions()
|
||||
{
|
||||
#ifdef Q_OS_UNIX
|
||||
if (::geteuid() == 0)
|
||||
QSKIP("not valid running this test as root", SkipAll);
|
||||
|
||||
// You can write into /dev/zero, but you can't create a /dev/zero.XXXXXX temp file.
|
||||
QSaveFile file("/dev/zero");
|
||||
if (!QDir("/dev").exists())
|
||||
QSKIP("/dev doesn't exist on this system", SkipAll);
|
||||
|
||||
QVERIFY(!file.open(QIODevice::WriteOnly));
|
||||
QCOMPARE(static_cast<int>(file.error()), static_cast<int>(QFile::OpenError));
|
||||
QVERIFY(!file.commit());
|
||||
#endif
|
||||
}
|
||||
|
||||
void TestQSaveFile::transactionalWriteCanceled()
|
||||
{
|
||||
const QString dir = tmpDir();
|
||||
const QString targetFile = dir + QString::fromLatin1("/outfile");
|
||||
DirCleanup dirCleanup(dir, "outfile");
|
||||
QFile::remove(targetFile);
|
||||
QSaveFile file(targetFile);
|
||||
QVERIFY(file.open(QIODevice::WriteOnly));
|
||||
|
||||
QTextStream ts(&file);
|
||||
ts << "This writing operation will soon be canceled.\n";
|
||||
ts.flush();
|
||||
QCOMPARE(file.error(), QFile::NoError);
|
||||
QVERIFY(!QFile::exists(targetFile));
|
||||
|
||||
// We change our mind, let's abort writing
|
||||
file.cancelWriting();
|
||||
|
||||
QVERIFY(!file.commit());
|
||||
|
||||
QVERIFY(!QFile::exists(targetFile)); // temp file was discarded
|
||||
QCOMPARE(file.fileName(), targetFile);
|
||||
}
|
||||
|
||||
void TestQSaveFile::transactionalWriteErrorRenaming()
|
||||
{
|
||||
const QString dir = tmpDir();
|
||||
const QString targetFile = dir + QString::fromLatin1("/outfile");
|
||||
DirCleanup dirCleanup(dir, "outfile");
|
||||
QSaveFile file(targetFile);
|
||||
QVERIFY(file.open(QIODevice::WriteOnly));
|
||||
QCOMPARE(file.write("Hello"), qint64(5));
|
||||
QVERIFY(!QFile::exists(targetFile));
|
||||
|
||||
#ifdef Q_OS_UNIX
|
||||
QFile dirAsFile(dir); // yay, I have to use QFile to change a dir's permissions...
|
||||
QVERIFY(dirAsFile.setPermissions(QFile::Permissions(0))); // no permissions
|
||||
#else
|
||||
QVERIFY(file.setPermissions(QFile::ReadOwner));
|
||||
#endif
|
||||
|
||||
QVERIFY(!file.commit());
|
||||
QVERIFY(!QFile::exists(targetFile)); // renaming failed
|
||||
QCOMPARE(file.error(), QFile::RenameError);
|
||||
|
||||
// Restore permissions so that the cleanup can happen
|
||||
#ifdef Q_OS_UNIX
|
||||
QVERIFY(dirAsFile.setPermissions(QFile::Permissions(QFile::ReadOwner | QFile::WriteOwner | QFile::ExeOwner)));
|
||||
#else
|
||||
QVERIFY(file.setPermissions(QFile::ReadOwner | QFile::WriteOwner));
|
||||
#endif
|
||||
}
|
||||
|
||||
QString TestQSaveFile::tmpDir()
|
||||
{
|
||||
QTemporaryFile* tmpFile = new QTemporaryFile(QDir::tempPath() + "/qttest_temp.XXXXXX");
|
||||
if (!tmpFile->open()) {
|
||||
return QString();
|
||||
}
|
||||
QString dirName = tmpFile->fileName();
|
||||
delete tmpFile;
|
||||
if (!QDir().mkdir(dirName)) {
|
||||
return QString();
|
||||
}
|
||||
|
||||
return dirName;
|
||||
}
|
||||
|
||||
KEEPASSX_QTEST_CORE_MAIN(TestQSaveFile)
|
39
tests/TestQSaveFile.h
Normal file
39
tests/TestQSaveFile.h
Normal file
@ -0,0 +1,39 @@
|
||||
/*
|
||||
* Copyright (C) 2012 Felix Geyer <debfx@fobos.de>
|
||||
* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 2 or (at your option)
|
||||
* version 3 of the License.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef TESTQSAVEFILE_H
|
||||
#define TESTQSAVEFILE_H
|
||||
|
||||
#include <QtCore/QObject>
|
||||
|
||||
class TestQSaveFile : public QObject
|
||||
{
|
||||
Q_OBJECT
|
||||
|
||||
private Q_SLOTS:
|
||||
void transactionalWrite();
|
||||
void autoFlush();
|
||||
void transactionalWriteNoPermissions();
|
||||
void transactionalWriteCanceled();
|
||||
void transactionalWriteErrorRenaming();
|
||||
|
||||
private:
|
||||
QString tmpDir();
|
||||
};
|
||||
|
||||
#endif // TESTQSAVEFILE_H
|
Loading…
Reference in New Issue
Block a user