338 lines
11 KiB
C++
338 lines
11 KiB
C++
/* === This file is part of Calamares - <http://github.com/calamares> ===
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*
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* Copyright 2014-2015, Teo Mrnjavac <teo@kde.org>
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*
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* Calamares 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 3 of the License, or
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* (at your option) any later version.
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*
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* Calamares 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 Calamares. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "RequirementsChecker.h"
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#include "CheckerWidget.h"
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#include "partman_devices.h"
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#include "widgets/WaitingWidget.h"
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#include "utils/CalamaresUtilsGui.h"
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#include "utils/Logger.h"
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#include "utils/Retranslator.h"
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#include "JobQueue.h"
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#include "GlobalStorage.h"
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#include <QBoxLayout>
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#include <QDBusConnection>
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#include <QDBusInterface>
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#include <QDir>
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#include <QFile>
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#include <QFileInfo>
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#include <QLabel>
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#include <QProcess>
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#include <QTimer>
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RequirementsChecker::RequirementsChecker( QObject* parent )
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: QObject( parent )
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, m_widget( new QWidget() )
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, m_actualWidget( new CheckerWidget() )
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, m_verdict( false )
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, m_requiredStorageGB( -1 )
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{
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QBoxLayout* mainLayout = new QHBoxLayout;
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m_widget->setLayout( mainLayout );
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CalamaresUtils::unmarginLayout( mainLayout );
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WaitingWidget* waitingWidget = new WaitingWidget( QString() );
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mainLayout->addWidget( waitingWidget );
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CALAMARES_RETRANSLATE( waitingWidget->setText( tr( "Gathering system information..." ) ); )
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QTimer* timer = new QTimer;
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timer->setSingleShot( true );
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connect( timer, &QTimer::timeout,
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[=]()
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{
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bool enoughStorage = false;
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bool enoughRam = false;
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bool hasPower = false;
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bool hasInternet = false;
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qint64 requiredStorageB = m_requiredStorageGB * 1073741824L; /*powers of 2*/
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cDebug() << "Need at least storage bytes:" << requiredStorageB;
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if ( m_entriesToCheck.contains( "storage" ) )
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enoughStorage = checkEnoughStorage( requiredStorageB );
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qint64 requiredRamB = m_requiredRamGB * 1073741824L; /*powers of 2*/
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cDebug() << "Need at least ram bytes:" << requiredRamB;
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if ( m_entriesToCheck.contains( "ram" ) )
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enoughRam = checkEnoughRam( requiredRamB );
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if ( m_entriesToCheck.contains( "power" ) )
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hasPower = checkHasPower();
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if ( m_entriesToCheck.contains( "internet" ) )
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hasInternet = checkHasInternet();
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cDebug() << "enoughStorage, enoughRam, hasPower, hasInternet: "
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<< enoughStorage << enoughRam << hasPower << hasInternet;
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QList< PrepareEntry > checkEntries;
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foreach ( const QString& entry, m_entriesToCheck )
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{
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if ( entry == "storage" )
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checkEntries.append( {
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entry,
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[this]{ return tr( "has at least %1 GB available drive space" )
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.arg( m_requiredStorageGB ); },
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[this]{ return tr( "There is not enough drive space. At least %1 GB is required." )
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.arg( m_requiredStorageGB ); },
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enoughStorage,
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m_entriesToRequire.contains( entry )
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} );
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else if ( entry == "ram" )
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checkEntries.append( {
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entry,
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[this]{ return tr( "has at least %1 GB working memory" )
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.arg( m_requiredRamGB ); },
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[this]{ return tr( "The system does not have enough working memory. At least %1 GB is required." )
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.arg( m_requiredRamGB ); },
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enoughRam,
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m_entriesToRequire.contains( entry )
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} );
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else if ( entry == "power" )
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checkEntries.append( {
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entry,
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[this]{ return tr( "is plugged in to a power source" ); },
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[this]{ return tr( "The system is not plugged in to a power source." ); },
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hasPower,
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m_entriesToRequire.contains( entry )
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} );
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else if ( entry == "internet" )
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checkEntries.append( {
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entry,
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[this]{ return tr( "is connected to the Internet" ); },
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[this]{ return tr( "The system is not connected to the Internet." ); },
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hasInternet,
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m_entriesToRequire.contains( entry )
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} );
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}
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m_actualWidget->init( checkEntries );
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m_widget->layout()->removeWidget( waitingWidget );
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waitingWidget->deleteLater();
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m_actualWidget->setParent( m_widget );
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m_widget->layout()->addWidget( m_actualWidget );
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bool canGoNext = true;
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foreach ( const PrepareEntry& entry, checkEntries )
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{
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if ( !entry.checked && entry.required )
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{
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canGoNext = false;
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break;
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}
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}
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m_verdict = canGoNext;
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emit verdictChanged( m_verdict );
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if ( canGoNext )
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detectFirmwareType();
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timer->deleteLater();
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} );
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timer->start( 0 );
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emit verdictChanged( true );
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}
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RequirementsChecker::~RequirementsChecker()
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{
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if ( m_widget && m_widget->parent() == nullptr )
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m_widget->deleteLater();
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}
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QWidget*
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RequirementsChecker::widget() const
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{
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return m_widget;
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}
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void
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RequirementsChecker::setConfigurationMap( const QVariantMap& configurationMap )
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{
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if ( configurationMap.contains( "requiredStorage" ) &&
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configurationMap.value( "requiredStorage" ).type() == QVariant::Double )
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{
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bool ok = false;
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m_requiredStorageGB = configurationMap.value( "requiredStorage" ).toDouble( &ok );
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if ( !ok )
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m_requiredStorageGB = 3.;
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Calamares::JobQueue::instance()->globalStorage()->insert( "requiredStorageGB", m_requiredStorageGB );
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}
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else
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{
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m_requiredStorageGB = 3.;
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}
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if ( configurationMap.contains( "requiredRam" ) &&
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configurationMap.value( "requiredRam" ).type() == QVariant::Double )
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{
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bool ok = false;
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m_requiredRamGB = configurationMap.value( "requiredRam" ).toDouble( &ok );
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if ( !ok )
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m_requiredRamGB = 1.;
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}
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else
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{
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m_requiredRamGB = 1.;
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}
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if ( configurationMap.contains( "check" ) &&
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configurationMap.value( "check" ).type() == QVariant::List )
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{
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m_entriesToCheck.clear();
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m_entriesToCheck.append( configurationMap.value( "check" ).toStringList() );
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}
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if ( configurationMap.contains( "required" ) &&
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configurationMap.value( "required" ).type() == QVariant::List )
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{
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m_entriesToRequire.clear();
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m_entriesToRequire.append( configurationMap.value( "required" ).toStringList() );
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}
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}
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bool
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RequirementsChecker::verdict() const
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{
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return m_verdict;
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}
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bool
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RequirementsChecker::checkEnoughStorage( qint64 requiredSpace )
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{
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return check_big_enough( requiredSpace );
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}
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bool
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RequirementsChecker::checkEnoughRam( qint64 requiredRam )
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{
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// A line in meminfo looks like this, with {print $2} we grab the second column.
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// MemTotal: 8133432 kB
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QProcess p;
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p.start( "awk", { "/MemTotal/ {print $2}", "/proc/meminfo" } );
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p.waitForFinished();
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QString memoryLine = p.readAllStandardOutput().simplified();
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qint64 availableRam = memoryLine.toLongLong() * 1024;
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return availableRam >= requiredRam;
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}
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bool
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RequirementsChecker::checkBatteryExists()
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{
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const QFileInfo basePath( "/sys/class/power_supply" );
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if ( !( basePath.exists() && basePath.isDir() ) )
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return false;
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QDir baseDir( basePath.absoluteFilePath() );
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foreach ( auto item, baseDir.entryList( QDir::AllDirs |
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QDir::Readable |
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QDir::NoDotAndDotDot ) )
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{
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QFileInfo typePath( baseDir.absoluteFilePath( QString( "%1/type" )
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.arg( item ) ) );
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QFile typeFile( typePath.absoluteFilePath() );
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if ( typeFile.open( QIODevice::ReadOnly | QIODevice::Text ) )
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{
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if ( typeFile.readAll().startsWith( "Battery" ) )
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return true;
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}
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}
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return false;
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}
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bool
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RequirementsChecker::checkHasPower()
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{
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const QString UPOWER_SVC_NAME( "org.freedesktop.UPower" );
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const QString UPOWER_INTF_NAME( "org.freedesktop.UPower" );
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const QString UPOWER_PATH( "/org/freedesktop/UPower" );
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if ( !checkBatteryExists() )
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return true;
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cDebug() << "A battery exists, checking for mains power.";
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QDBusInterface upowerIntf( UPOWER_SVC_NAME,
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UPOWER_PATH,
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UPOWER_INTF_NAME,
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QDBusConnection::systemBus(), 0 );
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bool onBattery = upowerIntf.property( "OnBattery" ).toBool();
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if ( !upowerIntf.isValid() )
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{
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// We can't talk to upower but we're obviously up and running
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// so I guess we got that going for us, which is nice...
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return true;
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}
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// If a battery exists but we're not using it, means we got mains
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// power.
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return !onBattery;
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}
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bool
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RequirementsChecker::checkHasInternet()
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{
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const QString NM_SVC_NAME( "org.freedesktop.NetworkManager" );
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const QString NM_INTF_NAME( "org.freedesktop.NetworkManager" );
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const QString NM_PATH( "/org/freedesktop/NetworkManager" );
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const int NM_STATE_CONNECTED_GLOBAL = 70;
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QDBusInterface nmIntf( NM_SVC_NAME,
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NM_PATH,
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NM_INTF_NAME,
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QDBusConnection::systemBus(), 0 );
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bool ok = false;
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int nmState = nmIntf.property( "state" ).toInt( &ok );
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if ( !ok || !nmIntf.isValid() )
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{
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// We can't talk to NM, so no idea. Wild guess: we're connected
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// using ssh with X forwarding, and are therefore connected. This
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// allows us to proceed with a minimum of complaint.
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return true;
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}
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return nmState == NM_STATE_CONNECTED_GLOBAL;
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}
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void
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RequirementsChecker::detectFirmwareType()
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{
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QString fwType = QFile::exists( "/sys/firmware/efi/efivars" ) ? "efi" : "bios";
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Calamares::JobQueue::instance()->globalStorage()->insert( "firmwareType", fwType );
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}
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