src/admin/workerintegration.cpp

   1 /*
   2     This file is part of the KDE project
   3     SPDX-FileCopyrightText: 2022 Felix Ernst <felixernst@kde.org>
   4
   5     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
   6 */
   7
   8 #include "workerintegration.h"
   9
  10 #include "dolphinmainwindow.h"
  11 #include "dolphinviewcontainer.h"
  12
  13 #include <KActionCollection>
  14 #include <KLocalizedString>
  15 #include <KMessageBox>
  16 #include <KMessageDialog>
  17 #include <KProtocolInfo>
  18
  19 #include <QAction>
  20
  21 using namespace Admin;
  22
  23 QString Admin::warningMessage()
  24 {
  25     return xi18nc(
  26         "@info",
  27         "<para>You are about to use administrator privileges. While acting as an administrator you can change or replace any file or folder on this system. "
  28         "This includes items which are critical for this system to function.</para><para>You are able to <emphasis>delete every users' data</emphasis> on this "
  29         "computer and to <emphasis>break this installation beyond repair.</emphasis> Adding just one letter in a folder or file name or its contents can "
  30         "render a system <emphasis>unbootable.</emphasis></para><para>There is probably not going to be another warning even if you are about to break this "
  31         "system.</para><para>You might want to <emphasis>backup files and folders</emphasis> before proceeding.</para>");
  32 }
  33
  34 namespace
  35 {
  36 /** The only WorkerIntegration object that is ever constructed. It is only ever accessed directly from within this file. */
  37 WorkerIntegration *instance = nullptr;
  38 }
  39
  40 WorkerIntegration::WorkerIntegration(DolphinMainWindow *parent, QAction *actAsAdminAction)
  41     : QObject{parent}
  42     , m_actAsAdminAction{actAsAdminAction}
  43 {
  44     Q_CHECK_PTR(parent);
  45     Q_CHECK_PTR(actAsAdminAction);
  46
  47     connect(parent, &DolphinMainWindow::urlChanged, this, &WorkerIntegration::updateActAsAdminAction);
  48
  49     connect(actAsAdminAction, &QAction::triggered, this, &WorkerIntegration::toggleActAsAdmin);
  50 }
  51
  52 void WorkerIntegration::createActAsAdminAction(KActionCollection *actionCollection, DolphinMainWindow *dolphinMainWindow)
  53 {
  54     Q_ASSERT(!instance);
  55     if (KProtocolInfo::isKnownProtocol(QStringLiteral("admin"))) {
  56         QAction *actAsAdminAction = actionCollection->addAction(QStringLiteral("act_as_admin"));
  57         actAsAdminAction->setText(i18nc("@action:inmenu", "Act as Administrator"));
  58         actAsAdminAction->setIcon(QIcon::fromTheme(QStringLiteral("system-switch-user")));
  59         actAsAdminAction->setCheckable(true);
  60         actionCollection->setDefaultShortcut(actAsAdminAction, Qt::CTRL | Qt::SHIFT | Qt::ALT | Qt::Key_A);
  61
  62         instance = new WorkerIntegration(dolphinMainWindow, actAsAdminAction);
  63     }
  64 }
  65
  66 void WorkerIntegration::exitAdminMode()
  67 {
  68     if (instance->m_actAsAdminAction->isChecked()) {
  69         instance->m_actAsAdminAction->trigger();
  70     }
  71 }
  72
  73 void WorkerIntegration::toggleActAsAdmin()
  74 {
  75     auto dolphinMainWindow = static_cast<DolphinMainWindow *>(parent());
  76     QUrl url = dolphinMainWindow->activeViewContainer()->urlNavigator()->locationUrl();
  77     if (url.scheme() == QStringLiteral("file")) {
  78         bool risksAccepted = !KMessageBox::shouldBeShownContinue(warningDontShowAgainName);
  79
  80         if (!risksAccepted) {
  81             KMessageDialog warningDialog{KMessageDialog::QuestionTwoActions, warningMessage(), dolphinMainWindow};
  82             warningDialog.setCaption(i18nc("@title:window", "Risks of Acting as an Administrator"));
  83             warningDialog.setIcon(QIcon::fromTheme(QStringLiteral("security-low")));
  84             warningDialog.setButtons(KGuiItem{i18nc("@action:button", "I Understand and Accept These Risks"), QStringLiteral("data-warning")},
  85                                      KStandardGuiItem::cancel());
  86             warningDialog.setDontAskAgainText(i18nc("@option:check", "Do not warn me about these risks again"));
  87
  88             risksAccepted = warningDialog.exec() != 4 /* Cancel */;
  89             if (warningDialog.isDontAskAgainChecked()) {
  90                 KMessageBox::saveDontShowAgainContinue(warningDontShowAgainName);
  91             }
  92
  93             if (!risksAccepted) {
  94                 updateActAsAdminAction(); // Uncheck the action
  95                 return;
  96             }
  97         }
  98
  99         url.setScheme(QStringLiteral("admin"));
 100     } else if (url.scheme() == QStringLiteral("admin")) {
 101         url.setScheme(QStringLiteral("file"));
 102     }
 103     dolphinMainWindow->changeUrl(url);
 104 }
 105
 106 void WorkerIntegration::updateActAsAdminAction()
 107 {
 108     if (instance) {
 109         const QString currentUrlScheme = static_cast<DolphinMainWindow *>(instance->parent())->activeViewContainer()->url().scheme();
 110         if (currentUrlScheme == QStringLiteral("file")) {
 111             instance->m_actAsAdminAction->setEnabled(true);
 112             instance->m_actAsAdminAction->setChecked(false);
 113         } else if (currentUrlScheme == QStringLiteral("admin")) {
 114             instance->m_actAsAdminAction->setEnabled(true);
 115             instance->m_actAsAdminAction->setChecked(true);
 116         } else {
 117             instance->m_actAsAdminAction->setEnabled(false);
 118         }
 119     }
 120 }