RFIDUserManager/usermanager.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Juan González Aguilera                          *
   3  *                         (kde_devel@opsiland.info)                       *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU Library General Public License as       *
   7  *   published by the Free Software Foundation; either version 2 of the    *
   8  *   License, or (at your option) any later version.                       *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU Library General Public     *
  16  *   License along with this program; if not, write to the                 *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #include "optionsdialog.h"
  22 #include "usermanager.h"
  23 #include "userpreferences.h"
  24 #include <QDebug>
  25 #include <QMessageBox>
  26 #include <QProcess>
  27 #include <pwd.h>
  28 #include <grp.h>
  29 #include <unistd.h>
  30
  31 UserManager::UserManager ( QWidget* parent, Qt::WFlags fl )
  32         : QMainWindow ( parent, fl ), Ui::MainWindow(),settings(new QSettings("opsiland","RFIDUserManager",this))
  33 {
  34         setupUi ( this );
  35         if(getuid()!=0) {
  36                 QMessageBox::warning(this,"Not the superuser","Sorry, you must be the superuser to run this program");
  37                 exit(-1);
  38         }
  39         //Buttons
  40         QObject::connect(addUser,SIGNAL(clicked( bool )),this,SLOT(addUserSlot()));
  41         QObject::connect(editUser,SIGNAL(clicked( bool )),this,SLOT(editUserSlot()));
  42         QObject::connect(rmUser,SIGNAL(clicked( bool )),this,SLOT(rmUserSlot()));
  43         QObject::connect(prefs,SIGNAL(clicked( bool )),this,SLOT(preferencesSlot()));
  44         QObject::connect(userListWidget,SIGNAL(itemSelectionChanged()),this,SLOT(activarBotonesSlot()));
  45
  46         //Check if the app has been already configured
  47         settings->beginGroup("RFID");
  48         bool configured = settings->value("configured",false).toBool();
  49         settings->endGroup();
  50         if(!configured)
  51         {
  52                 OptionsDialog ops;
  53                 ops.setWindowTitle("First run setup!");
  54                 if(ops.exec() == QDialog::Accepted)
  55                 {
  56                         settings->beginGroup("RFID");
  57                         settings->setValue("configured",true);
  58                         settings->endGroup();
  59                 }
  60         }
  61         updateUserList();
  62 }
  63
  64 UserManager::~UserManager()
  65 {
  66 }
  67
  68 /*$SPECIALIZATION$*/
  69
  70 void UserManager::addUserSlot()
  71 {
  72         UserPreferences prefs;
  73         prefs.exec();
  74         updateUserList();
  75 }
  76
  77 void UserManager::editUserSlot()
  78 {
  79         QList<QListWidgetItem *> items = userListWidget->selectedItems();
  80         UserPreferences prefs(items[0]->text());
  81         prefs.exec();
  82         updateUserList();
  83 }
  84
  85 void UserManager::rmUserSlot()
  86 {
  87         QString userName = userListWidget->selectedItems()[0]->text();
  88         int res = QMessageBox::question(this,QString("Deleting user %1").arg(userName),QString("Are you sure you want to remove the %1 user?\n\nTHIS CAN NOT BE UNDONE!!").arg(userName),QMessageBox::Ok|QMessageBox::Cancel);
  89         if (res == QMessageBox::Ok) {
  90                 QProcess proc;
  91                 QStringList args;
  92                 int res = QMessageBox::question(this,"Remove home directory?","Do you want to remove the user's home directory too?",QMessageBox::Yes|QMessageBox::No);
  93                 if (res == QMessageBox::Yes) {
  94                         args << "-r";
  95                 }
  96                 args << userName;
  97                 proc.start("userdel",args);
  98                 proc.waitForFinished();
  99                 if (proc.exitCode()!=0) {
 100                         QMessageBox::warning(this,"Failure",QString("Impossible to delete the user:\n%1").arg(QString(proc.readAllStandardError())));
 101                 }
 102         }
 103         updateUserList();
 104 }
 105
 106 void UserManager::preferencesSlot()
 107 {
 108         OptionsDialog ops;
 109         ops.exec();
 110         updateUserList();
 111 }
 112
 113 void UserManager::activateButtonsSlot()
 114 {
 115         bool enable = !userListWidget->selectedItems().isEmpty();
 116         rmUser->setEnabled(enable);
 117         editUser->setEnabled(enable);
 118
 119 }
 120 void UserManager::updateUserList()
 121 {
 122         QStringList usersList;
 123         struct passwd *p;
 124         struct group *g;
 125         settings->beginGroup("RFID");
 126         QString rfidGroupName(settings->value("defaultGroup","rfid").toString());
 127         settings->endGroup();
 128
 129         setpwent();
 130         while((p=getpwent())!=NULL)
 131         {
 132                 QString userName(p->pw_name);
 133                 g = getgrgid(p->pw_gid);
 134                 QString groupName(g->gr_name);
 135                 if(groupName == rfidGroupName) {
 136                         usersList << userName;
 137                 }
 138         }
 139         endpwent();
 140         userListWidget->clear();
 141         userListWidget->addItems(usersList);
 142 }
 143
 144