338 lines
8.6 KiB
C++
338 lines
8.6 KiB
C++
/***************************************************************************
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* Copyright (C) 2009,2010 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include "gui/editmountpointdialogwidget.h"
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#include "gui/editmountoptionsdialog.h"
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#include "core/partition.h"
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#include "fs/filesystem.h"
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#include <klocale.h>
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#include <kfiledialog.h>
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#include <klineedit.h>
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#include <kdebug.h>
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#include <kmountpoint.h>
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#include <kmessagebox.h>
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#include <QString>
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#include <QWidget>
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#include <QFile>
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#include <QPointer>
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#include <mntent.h>
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#include <blkid/blkid.h>
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struct MountEntry
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{
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enum IdentifyType { deviceNode, uuid, label };
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MountEntry(const QString& n, const QString& p, const QString& t, const QStringList& o, qint32 d, qint32 pn, IdentifyType type) :
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name(n),
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path(p),
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type(t),
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options(o),
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dumpFreq(d),
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passNumber(pn),
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identifyType(type)
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{
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}
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MountEntry(struct mntent* p, IdentifyType type) :
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name(p->mnt_fsname),
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path(p->mnt_dir),
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type(p->mnt_type),
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options(QString(p->mnt_opts).split(',')),
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dumpFreq(p->mnt_freq),
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passNumber(p->mnt_passno),
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identifyType(type)
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{
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}
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QString name;
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QString path;
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QString type;
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QStringList options;
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qint32 dumpFreq;
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qint32 passNumber;
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IdentifyType identifyType;
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};
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static QString findBlkIdDevice(const QString& token, const QString& value)
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{
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blkid_cache cache;
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QString rval;
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if (blkid_get_cache(&cache, NULL) == 0)
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{
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if (char* c = blkid_evaluate_tag(token.toLocal8Bit(), value.toLocal8Bit(), &cache))
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{
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rval = c;
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free(c);
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}
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blkid_put_cache(cache);
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}
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return rval;
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}
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EditMountPointDialogWidget::EditMountPointDialogWidget(QWidget* parent, const Partition& p) :
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QWidget(parent),
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m_Partition(p)
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{
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readMountpoints("/etc/fstab");
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setupUi(this);
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labelName().setText(partition().deviceNode());
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labelType().setText(partition().fileSystem().name());
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if (mountPoints().find(partition().deviceNode()) == mountPoints().end())
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mountPoints()[partition().deviceNode()] = new MountEntry(partition().deviceNode(), QString(), partition().fileSystem().name(), QStringList(), 0, 0, MountEntry::deviceNode);
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MountEntry* entry = mountPoints()[partition().deviceNode()];
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Q_ASSERT(entry);
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if (entry)
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{
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editPath().setText(entry->path);
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spinDumpFreq().setValue(entry->dumpFreq);
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spinPassNumber().setValue(entry->passNumber);
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switch(entry->identifyType)
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{
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case MountEntry::uuid:
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radioUUID().setChecked(true);
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break;
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case MountEntry::label:
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radioLabel().setChecked(true);
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break;
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default:
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radioDeviceNode().setChecked(true);
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}
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boxOptions()["ro"] = m_CheckReadOnly;
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boxOptions()["users"] = m_CheckUsers;
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boxOptions()["noauto"] = m_CheckNoAuto;
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boxOptions()["noatime"] = m_CheckNoAtime;
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boxOptions()["nodiratime"] = m_CheckNoDirAtime;
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boxOptions()["sync"] = m_CheckSync;
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boxOptions()["noexec"] = m_CheckNoExec;
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boxOptions()["relatime"] = m_CheckRelAtime;
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setupOptions(entry->options);
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}
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if (partition().fileSystem().uuid().isEmpty())
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{
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radioUUID().setEnabled(false);
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if (radioUUID().isChecked())
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radioDeviceNode().setChecked(true);
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}
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if (partition().fileSystem().label().isEmpty())
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{
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radioLabel().setEnabled(false);
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if (radioLabel().isChecked())
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radioDeviceNode().setChecked(true);
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}
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}
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EditMountPointDialogWidget::~EditMountPointDialogWidget()
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{
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qDeleteAll(mountPoints().values());
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}
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void EditMountPointDialogWidget::setupOptions(const QStringList& options)
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{
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QStringList optTmpList;
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foreach (const QString& o, options)
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if (boxOptions().find(o) != boxOptions().end())
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boxOptions()[o]->setChecked(true);
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else
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optTmpList.append(o);
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m_Options = optTmpList.join(",");
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}
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void EditMountPointDialogWidget::on_m_ButtonSelect_clicked(bool)
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{
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const QString s = KFileDialog::getExistingDirectory(KUrl(editPath().text()), this);
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if (!s.isEmpty())
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editPath().setText(s);
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}
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void EditMountPointDialogWidget::on_m_ButtonMore_clicked(bool)
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{
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QPointer<EditMountOptionsDialog> dlg = new EditMountOptionsDialog(this, m_Options.split(','));
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if (dlg->exec() == KDialog::Accepted)
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setupOptions(dlg->options());
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delete dlg;
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}
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QStringList EditMountPointDialogWidget::options()
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{
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QStringList optList = m_Options.split(',', QString::SkipEmptyParts);
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foreach (const QString& s, boxOptions().keys())
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if (boxOptions()[s]->isChecked())
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optList.append(s);
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return optList;
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}
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bool EditMountPointDialogWidget::readMountpoints(const QString& filename)
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{
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FILE* fp = setmntent(filename.toLocal8Bit(), "r");
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if (fp == NULL)
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{
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KMessageBox::sorry(this,
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i18nc("@info", "Could not open mount point file <filename>%1</filename>.", filename),
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i18nc("@title:window", "Error while reading mount points"));
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return false;
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}
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struct mntent* mnt = NULL;
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while ((mnt = getmntent(fp)) != NULL)
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{
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QString device = mnt->mnt_fsname;
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MountEntry::IdentifyType type = MountEntry::deviceNode;
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if (device.startsWith("UUID="))
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{
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type = MountEntry::uuid;
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device = findBlkIdDevice("UUID", QString(device).remove("UUID="));
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}
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else if (device.startsWith("LABEL="))
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{
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type = MountEntry::label;
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device = findBlkIdDevice("LABEL", QString(device).remove("LABEL="));
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}
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if (!device.isEmpty())
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{
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QString mountPoint = mnt->mnt_dir;
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mountPoints()[device] = new MountEntry(mnt, type);
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}
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}
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endmntent(fp);
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return true;
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}
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static void writeEntry(QFile& output, const MountEntry* entry)
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{
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Q_ASSERT(entry);
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if (entry == NULL)
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return;
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if (entry->path.isEmpty())
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return;
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QTextStream s(&output);
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s << entry->name << "\t"
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<< entry->path << "\t"
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<< entry->type << "\t"
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<< (entry->options.size() > 0 ? entry->options.join(",") : "defaults") << "\t"
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<< entry->dumpFreq << "\t"
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<< entry->passNumber << "\n";
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}
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bool EditMountPointDialogWidget::acceptChanges()
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{
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MountEntry* entry = NULL;
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if (mountPoints().find(labelName().text()) == mountPoints().end())
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{
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kWarning() << "could not find device " << labelName().text() << " in mount points.";
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return false;
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}
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entry = mountPoints()[labelName().text()];
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entry->dumpFreq = spinDumpFreq().value();
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entry->passNumber = spinPassNumber().value();
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entry->path = editPath().text();
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entry->options = options();
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if (radioUUID().isChecked() && !partition().fileSystem().uuid().isEmpty())
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entry->name = "UUID=" + partition().fileSystem().uuid();
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else if (radioLabel().isChecked() && !partition().fileSystem().label().isEmpty())
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entry->name = "LABEL=" + partition().fileSystem().label();
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else
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entry->name = partition().deviceNode();
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return true;
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}
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bool EditMountPointDialogWidget::writeMountpoints(const QString& filename)
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{
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bool rval = true;
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const QString newFilename = QString("%1.new").arg(filename);
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QFile out(newFilename);
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if (!out.open(QFile::ReadWrite | QFile::Truncate))
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{
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kWarning() << "could not open output file " << newFilename;
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rval = false;
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}
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else
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{
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foreach (const MountEntry* me, mountPoints())
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writeEntry(out, me);
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out.close();
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const QString bakFilename = QString("%1.bak").arg(filename);
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QFile::remove(bakFilename);
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if (!QFile::rename(filename, bakFilename))
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{
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kWarning() << "could not rename " << filename << " to " << bakFilename;
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rval = false;
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}
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if (rval && !QFile::rename(newFilename, filename))
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{
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kWarning() << "could not rename " << newFilename << " to " << filename;
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rval = false;
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}
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}
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if (!rval)
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KMessageBox::sorry(this,
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i18nc("@info", "Could not save mount points to file <filename>%1</filename>.", filename),
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i18nc("@title:window", "Error While Saving Mount Points"));
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return rval;
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}
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