src/helper/k3bhelper.cpp

0001 /*
0002     SPDX-FileCopyrightText: 2009-2011 Michal Malek <michalm@jabster.pl>
0003     SPDX-FileCopyrightText: 2010 Dario Freddi <drf@kde.org>
0004     SPDX-FileCopyrightText: 1998-2009 Sebastian Trueg <trueg@k3b.org>
0005
0006     SPDX-License-Identifier: GPL-2.0-or-later
0007 */
0008
0009 #include "k3bhelper.h"
0010 #include "k3bhelperprogramitem.h"
0011
0012 #include <KAuth/HelperSupport>
0013
0014 #include <QFile>
0015 #include <QProcess>
0016 #include <QString>
0017 #include <QStringList>
0018
0019 #include <grp.h>
0020 #include <sys/types.h>
0021 #include <sys/stat.h>
0022 #include <unistd.h>
0023
0024 namespace {
0025
0026 bool updateDevicePermissions( ::group* g, const QString& device )
0027 {
0028     bool success = true;
0029     if( g != 0 ) {
0030         if( ::chmod( QFile::encodeName(device), S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP ) )
0031             success = false;
0032
0033         if( ::chown( QFile::encodeName(device), (gid_t)-1, g->gr_gid ) )
0034             success = false;
0035     }
0036     else {
0037         if( ::chmod( QFile::encodeName(device), S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH ) )
0038             success = false;
0039     }
0040     return success;
0041 }
0042
0043
0044 bool updateProgramPermissions( ::group* g, const QString& path, bool suid )
0045 {
0046     bool success = true;
0047     if( g != 0 ) {
0048         if( ::chown( QFile::encodeName(path), (gid_t)0, g->gr_gid ) )
0049             success = false;
0050
0051         int perm = 0;
0052         if( suid )
0053             perm = S_ISUID|S_IRWXU|S_IXGRP;
0054         else
0055             perm = S_IRWXU|S_IXGRP|S_IRGRP;
0056
0057         if( ::chmod( QFile::encodeName(path), perm ) )
0058             success = false;
0059     }
0060     else {
0061         if( ::chown( QFile::encodeName(path), 0, 0 ) )
0062             success = false;
0063
0064         int perm = 0;
0065         if( suid )
0066             perm = S_ISUID|S_IRWXU|S_IXGRP|S_IXOTH;
0067         else
0068             perm = S_IRWXU|S_IXGRP|S_IRGRP|S_IXOTH|S_IROTH;
0069
0070         if( ::chmod( QFile::encodeName(path), perm ) )
0071             success = false;
0072     }
0073     return success;
0074 }
0075
0076 } // namespace
0077
0078
0079 namespace K3b {
0080
0081 Helper::Helper()
0082 {
0083     qRegisterMetaType<HelperProgramItem>();
0084 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
0085     qRegisterMetaTypeStreamOperators<HelperProgramItem>( "K3b::HelperProgramItem" );
0086 #endif
0087 }
0088
0089 KAuth::ActionReply Helper::updatepermissions( QVariantMap args )
0090 {
0091     QString burningGroup = args["burningGroup"].toString();
0092     QStringList devices = args["devices"].toStringList();
0093     QVariantList programs = args["programs"].value<QVariantList>();
0094
0095     ::group* g = 0;
0096     if( !burningGroup.isEmpty() ) {
0097         g = ::getgrnam( burningGroup.toLocal8Bit() );
0098     }
0099
0100     QStringList updated;
0101     QStringList failedToUpdate;
0102
0103     Q_FOREACH( const QString& dev, devices )
0104     {
0105         if( updateDevicePermissions( g, dev ) )
0106             updated.push_back( dev );
0107         else
0108             failedToUpdate.push_back( dev );
0109     }
0110
0111     Q_FOREACH( const QVariant& v, programs )
0112     {
0113         HelperProgramItem program = v.value<HelperProgramItem>();
0114
0115         if( !program.m_path.isEmpty() && updateProgramPermissions( g, program.m_path, program.m_needSuid ) )
0116             updated.push_back( program.m_path );
0117         else
0118             failedToUpdate.push_back( program.m_path );
0119     }
0120
0121     KAuth::ActionReply reply = KAuth::ActionReply::SuccessReply();
0122     QVariantMap data;
0123     data["updated"] = updated;
0124     data["failedToUpdate"] = failedToUpdate;
0125     reply.setData(data);
0126
0127     return reply;
0128 }
0129
0130 KAuth::ActionReply Helper::addtogroup( QVariantMap args )
0131 {
0132     const QString groupName = args["groupName"].toString();
0133     const QString userName = args["userName"].toString();
0134
0135     QProcess gpasswd;
0136     int errorCode = gpasswd.execute( "gpasswd", QStringList() << "--add" << userName << groupName );
0137
0138     KAuth::ActionReply reply;
0139     if( errorCode == 0 ) {
0140         reply = KAuth::ActionReply::SuccessReply();
0141     } else {
0142         reply = KAuth::ActionReply::HelperErrorReply();
0143         reply.setErrorCode( (KAuth::ActionReply::Error) errorCode );
0144         reply.setErrorDescription( QString( "gpasswd --add " + userName + ' ' + groupName + " : " + QString::fromLocal8Bit( gpasswd.readAllStandardError().data() ) ) );
0145     }
0146
0147     return reply;
0148 }
0149
0150 } // namespace K3b
0151
0152 KAUTH_HELPER_MAIN("org.kde.k3b", K3b::Helper)
0153
0154 #include "moc_k3bhelper.cpp"