File: kpppwidget.cpp

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kppp 4:17.08.3-1
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/*
 *            kPPP: A pppd front end for the KDE project
 *
 *
 *            Copyright (C) 1997 Bernd Johannes Wuebben
 *                   wuebben@math.cornell.edu
 *
 *            Copyright (C) 1998-2002 Harri Porten <porten@kde.org>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this program; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#include "kpppwidget.h"
#include <qapplication.h>
#include <qcombobox.h>
#include <qdir.h>
#include <qevent.h>
#include <qdialog.h>
#include <qlabel.h>
#include <qpushbutton.h>
#include <qregexp.h>
//Added by qt3to4:
#include <QGridLayout>
#include <QKeyEvent>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <kpagedialog.h>

#include <QMenu>
#include <kaboutdata.h>
#include <kglobalsettings.h>
#include <kcmdlineargs.h>
#include <kconfig.h>
#include <kdebug.h>
#include <kiconloader.h> // For BarIcon
#include <klocale.h>
#include <kmessagebox.h>
#include <kseparator.h>
#include <kstandarddirs.h>
#include <kapplication.h>
#include <kwindowsystem.h>
#include <khelpmenu.h>
#include <kpushbutton.h>
#include <kguiitem.h>
#include <KStandardGuiItem>

#include <stdlib.h>
#include <errno.h>
#include <ktoolinvocation.h>

#include "runtests.h"

#include "main.h"
#include "auth.h"
#include "modem.h"
#include "ppplog.h"
#include "opener.h"
#include "requester.h"
#include "pppstats.h"
#include "pppdata.h"
#include "general.h"
#include "modems.h"

#include "kpppadaptor.h"

// delay disconnection for a second
#define DISCONNECT_DELAY 1000

extern KPPPWidget *p_kppp;

KPPPWidget::KPPPWidget( QWidget *parent, const char *name )
  : QWidget(parent)
  , acct(0)
  , m_bCmdlAccount (false)
  , m_bCmdlModem (false)
{
    KpppAdaptor *kpppAdaptor = new KpppAdaptor(this);
    QDBusConnection::sessionBus().registerObject("/Kppp", this);

    setObjectName( name );

    connect( this, SIGNAL(sig_aboutToConnect()), kpppAdaptor, SIGNAL(aboutToConnect()) );
    connect( this, SIGNAL(sig_aboutToDisconnect()), kpppAdaptor, SIGNAL(aboutToDisconnect()) );
    connect( this, SIGNAL(sig_connected()), kpppAdaptor, SIGNAL(connected()) );
    connect( this, SIGNAL(sig_disconnected()), kpppAdaptor, SIGNAL(disconnected()) );


  tabWindow = 0;

  // before doing anything else, run a few tests

  int result = runTests();
  if(result == TEST_CRITICAL)
    exit(4);

  installEventFilter(this);

  QVBoxLayout *tl = new QVBoxLayout(this);
  tl->setSpacing(10);
  tl->setMargin(10);

  l1 = new QGridLayout();
  tl->addLayout(l1);
  l1->addItem(new QSpacerItem(10, 0), 0, 0);
  l1->addItem(new QSpacerItem(10, 0), 0, 3);
  l1->setColumnStretch(1, 3);
  l1->setColumnStretch(2, 4);

  label1 = new QLabel(i18n("C&onnect to: "), this);
  l1->addWidget(label1, 0, 1);

  connectto_c = new QComboBox(this);
  connectto_c->setEditable( false );
  label1->setBuddy(connectto_c);

  connect(connectto_c, SIGNAL(activated(int)),
	  SLOT(newdefaultaccount(int)));
  l1->addWidget(connectto_c, 0, 2);

  label7 = new QLabel(i18n("Use &modem: "), this);
  // l1->addWidget(label7, 1, 1); (done in resetmodems())
  modem_c = new QComboBox(this);
  modem_c->setEditable( false );
  label7->setBuddy(connectto_c);
  m_bModemCShown = false;

  connect(modem_c, SIGNAL(activated(int)),
	  SLOT(newdefaultmodem(int)));
  // l1->addWidget(modem_c, 1, 2); (done in resetmodems())

  ID_Label = new QLabel(i18n("&Login ID:"), this);
  l1->addWidget(ID_Label, 2, 1);

  // the entry line for usernames
  ID_Edit = new QLineEdit(this);
  ID_Label->setBuddy(ID_Edit);
  l1->addWidget(ID_Edit, 2, 2);
  connect(ID_Edit, SIGNAL(returnPressed()),
	  this, SLOT(enterPressedInID()));
  QString tmp = i18n("<p>Type in the username that you got from your\n"
		     "ISP. This is especially important for PAP\n"
		     "and CHAP. You may omit this when you use\n"
		     "terminal-based or script-based authentication.\n"
		     "\n"
		     "<b>Important</b>: case is important here:\n"
		     "<i>myusername</i> is not the same as <i>MyUserName</i>.");

  ID_Label->setWhatsThis(tmp);
  ID_Edit->setWhatsThis(tmp);

  PW_Label = new QLabel(i18n("&Password:"), this);
  l1->addWidget(PW_Label, 3, 1);

  PW_Edit= new QLineEdit(this);
  PW_Label->setBuddy(PW_Edit);
  PW_Edit->setEchoMode(QLineEdit::Password);
  l1->addWidget(PW_Edit, 3, 2);
  connect(PW_Edit, SIGNAL(returnPressed()),
	  this, SLOT(enterPressedInPW()));

  tmp = i18n("<p>Type in the password that you got from your\n"
	     "ISP. This is especially important for PAP\n"
	     "and CHAP. You may omit this when you use\n"
	     "terminal-based or script-based authentication.\n"
	     "\n"
	     "<b>Important</b>: case is important here:\n"
	     "<i>mypassword</i> is not the same as <i>MyPassword</i>.");

  PW_Label->setWhatsThis(tmp);
  PW_Edit->setWhatsThis(tmp);

   QHBoxLayout *l3 = new QHBoxLayout;
   tl->addSpacing(5);
   tl->addLayout(l3);
   tl->addSpacing(5);
   l3->addSpacing(10);
   log = new QCheckBox(i18n("Show lo&g window"), this);
   connect(log, SIGNAL(toggled(bool)),
  	  this, SLOT(log_window_toggled(bool)));
   log->setChecked(gpppdata.get_show_log_window());
   l3->addWidget(log);

   log->setWhatsThis(
 		  i18n("<p>This controls whether a log window is shown.\n"
 		       "A log window shows the communication between\n"
 		       "<i>kppp</i> and your modem. This will help you\n"
 		       "in tracking down problems.\n"
 		       "\n"
 		       "Turn it off if <i>kppp</i> routinely connects without\n"
 		       "problems"));

  fline = new KSeparator( Qt::Horizontal, this);
  tl->addWidget(fline);

  QHBoxLayout *l2 = new QHBoxLayout;
  tl->addLayout(l2);

  int minw = 0;
  quit_b = new KPushButton(KStandardGuiItem::quit(), this);
  connect( quit_b, SIGNAL(clicked()), SLOT(quitbutton()));
  if(quit_b->sizeHint().width() > minw)
      minw = quit_b->sizeHint().width();

  setup_b = new KPushButton(KGuiItem(i18n("Co&nfigure..."), "configure"), this);
  connect( setup_b, SIGNAL(clicked()), SLOT(expandbutton()));
  if(setup_b->sizeHint().width() > minw)
      minw = setup_b->sizeHint().width();

  if(gpppdata.access() != KConfig::ReadWrite)
    setup_b->setEnabled(false);

  help_b = new KPushButton(KStandardGuiItem::help(), this);
  connect( help_b, SIGNAL(clicked()), SLOT(helpbutton()));

  KHelpMenu *helpMenu = new KHelpMenu(this, KGlobal::mainComponent().aboutData(), true);
  help_b->setMenu((QMenu*)helpMenu->menu());
  if(help_b->sizeHint().width() > minw)
      minw = help_b->sizeHint().width();

  connect_b = new QPushButton(i18n("&Connect"), this);
  connect_b->setDefault(true);
  connect_b->setFocus();
  connect(connect_b, SIGNAL(clicked()), SLOT(beginConnect()));
  if(connect_b->sizeHint().width() > minw)
      minw = connect_b->sizeHint().width();

  quit_b->setFixedWidth(minw);
  setup_b->setFixedWidth(minw);
  help_b->setFixedWidth(help_b->sizeHint().width());
  connect_b->setFixedWidth(minw);

  l2->addWidget(quit_b);
  l2->addWidget(setup_b);
  l2->addWidget(help_b);
  l2->addSpacing(20);
  l2->addWidget(connect_b);

  setFixedSize(sizeHint());

  (void)new Modem;

  // we also connect cmld_start to the beginConnect so that I can run
  // the dialer through a command line argument
  connect(this,SIGNAL(cmdl_start()),this,SLOT(beginConnect()));

  stats = new PPPStats;

  KWindowSystem::setIcons(winId(), qApp->windowIcon().pixmap(IconSize(KIconLoader::Desktop),IconSize(KIconLoader::Desktop)), qApp->windowIcon().pixmap(IconSize(KIconLoader::Small),IconSize(KIconLoader::Small)));

  // constructor of con_win reads position from config file
  con_win = new ConWindow(0, "conw", this, stats);
  KWindowSystem::setIcons(con_win->winId(), qApp->windowIcon().pixmap(IconSize(KIconLoader::Desktop),IconSize(KIconLoader::Desktop)), qApp->windowIcon().pixmap(IconSize(KIconLoader::Small),IconSize(KIconLoader::Small)));

  statdlg = new PPPStatsDlg(0, "stats", this, stats);
  statdlg->hide();

  debugwindow = new DebugWidget(0);
  debugwindow->setObjectName( "debugwindow" );
  KWindowSystem::setIcons(debugwindow->winId(), qApp->windowIcon().pixmap(IconSize(KIconLoader::Desktop),IconSize(KIconLoader::Desktop)), qApp->windowIcon().pixmap(IconSize(KIconLoader::Small),IconSize(KIconLoader::Small)));

  // load up the accounts combo box

  resetaccounts();
  resetmodems();
  con = new ConnectWidget(0, "con", stats);
  KWindowSystem::setIcons(con->winId(), qApp->windowIcon().pixmap(IconSize(KIconLoader::Desktop),IconSize(KIconLoader::Desktop)), qApp->windowIcon().pixmap(IconSize(KIconLoader::Small),IconSize(KIconLoader::Small)) );
  connect(this, SIGNAL(begin_connect()),con, SLOT(preinit()));

  QRect desk = KGlobalSettings::desktopGeometry(topLevelWidget());
  con->setGeometry(desk.center().x()-175, desk.center().y()-55, 350,110);

  // connect the ConnectWidgets various signals
  connect(con, SIGNAL(closeDebugWindow()),
	  debugwindow, SLOT(hide()));
  connect(con, SIGNAL(debugMessage(QString)),
	  debugwindow, SLOT(statusLabel(QString)));
  connect(con, SIGNAL(toggleDebugWindow()),
	  debugwindow, SLOT(toggleVisibility()));
  connect(con, SIGNAL(debugPutChar(unsigned char)),
	  debugwindow, SLOT(addChar(unsigned char)));
  connect(con, SIGNAL(startAccounting()),
	  this, SLOT(startAccounting()));
  connect(con, SIGNAL(stopAccounting()),
	  this, SLOT(stopAccounting()));
  connect(KApplication::kApplication(), SIGNAL(saveYourself()),
	  this, SLOT(saveMyself()));
  connect(KApplication::kApplication(), SIGNAL(aboutToQuit()),
	  this, SLOT(shutDown()));
  connect(con, SIGNAL(aboutToConnect()), this, SIGNAL(sig_aboutToConnect()));
  connect(con, SIGNAL(connected()),      this, SIGNAL(sig_connected()));

  debugwindow->setGeometry(desk.center().x()+190, desk.center().y()-55,
			   debugwindow->width(),debugwindow->height());

  move(desk.center().x()-width()/2, desk.center().y()-height()/2);


  KCmdLineArgs *args = KCmdLineArgs::parsedArgs();

  m_strCmdlAccount = args->getOption("c");
  m_strCmdlModem = args->getOption("m");
  m_bQuitOnDisconnect = args->isSet("q");

  if(!m_strCmdlAccount.isEmpty()) {
    m_bCmdlAccount = true;
    kDebug(5002) << "cmdl_account: " << m_bCmdlAccount;
  }

  if(!m_strCmdlModem.isEmpty()) {
    m_bCmdlModem = true;
    kDebug(5002) << "cmdl_modem: " << m_bCmdlModem;
  }

  if(m_bCmdlModem){
    bool result = gpppdata.setModem(m_strCmdlModem);
    if (!result){
      QString string;
      string = i18n("No such Modem:\n%1\nFalling back to default", m_strCmdlModem);
      KMessageBox::error(this, string);
      m_bCmdlModem = false;
    }
  }

  if(m_bCmdlAccount){
    bool result = gpppdata.setAccount(m_strCmdlAccount);
    if (!result){
      QString string;
      string = i18n("No such Account:\n%1", m_strCmdlAccount);
      KMessageBox::error(this, string);
      m_bCmdlAccount = false;
      show();
    } else {
      beginConnect();
    }
  } else
    show();


//#define KPPP_SHOW_NEWS
#ifdef KPPP_SHOW_NEWS
  // keep user informed about recent changes
  if(!m_bCmdlAccount)
    showNews();
#endif
  // this timer will delay the actual disconnection DISCONNECTION_DELAY ms
  // to give applications time to shutdown, logout, whatever..
  disconnectTimer = new QTimer(this);
  connect(disconnectTimer, SIGNAL(timeout()), this, SLOT(delayedDisconnect()));
}

KPPPWidget::~KPPPWidget()
{
  delete stats;
}

bool KPPPWidget::eventFilter(QObject *o, QEvent *e) {
  if(e->type() == QEvent::User) {
    switch(((SignalEvent*)e)->sigType()) {
    case SIGINT:
      kDebug(5002) << "Received a SIGINT";
      interruptConnection();
      break;
    case SIGCHLD:
      sigChld();
      break;
    case SIGUSR1:
      sigPPPDDied();
      break;
    }
    return true;
  }

    if(o == connect_b) {
      if(e->type() == QEvent::KeyPress) {
        if(connect_b->hasFocus() && ((QKeyEvent *)e)->key() == Qt::Key_Return) {
          beginConnect();
          return true;
        }
      }
    }

    return false;
}

void KPPPWidget::prepareSetupDialog() {
  if(tabWindow == 0) {
    tabWindow = new KPageDialog( this );
    tabWindow->setCaption( i18n("KPPP Configuration") );
    tabWindow->setButtons( KDialog::Ok|KDialog::Cancel );
    tabWindow->setDefaultButton(  KDialog::Ok );
    tabWindow->setFaceType( KPageDialog::Tabbed );
    tabWindow->setModal( true );

    KWindowSystem::setIcons(tabWindow->winId(), qApp->windowIcon().pixmap(IconSize(KIconLoader::Desktop),IconSize(KIconLoader::Desktop)), qApp->windowIcon().pixmap(IconSize(KIconLoader::Small),IconSize(KIconLoader::Small)));

    //    tabWindow->setFixedSize( 365, 375 );
    QFrame *frame = new QFrame();
    KPageWidgetItem *pageItem = new KPageWidgetItem( frame, i18n("&Accounts") );
    pageItem->setHeader( i18n("Account Setup") );
    tabWindow->addPage( pageItem );
    accounts = new AccountWidget(frame);
    connect(accounts, SIGNAL(resetaccounts()),
	    this, SLOT(resetaccounts()));
    connect(accounts, SIGNAL(resetCosts(QString)),
	    this, SLOT(resetCosts(QString)));
    connect(accounts, SIGNAL(resetVolume(QString)),
	    this, SLOT(resetVolume(QString)));


    frame = new QFrame();
    pageItem = new KPageWidgetItem( frame, i18n("&Modems") );
    pageItem->setHeader( i18n("Modems Setup") );
    tabWindow->addPage( pageItem );
    modems = new ModemsWidget(frame);
    connect(modems, SIGNAL(resetmodems()),
	    this, SLOT(resetmodems()));

    frame = new QFrame();
    pageItem = new KPageWidgetItem( frame, i18n("&Graph") );
    pageItem->setHeader( i18n("Throughput Graph") );
    tabWindow->addPage( pageItem );

    graph = new GraphSetup( frame );

    frame = new QFrame();
    pageItem = new KPageWidgetItem( frame, i18n("M&isc") );
    pageItem->setHeader( i18n("Miscellaneous Settings") );
    tabWindow->addPage( pageItem );
    general = new GeneralWidget( frame );
  }
}


void KPPPWidget::enterPressedInID() {
  PW_Edit->setFocus();
}


void KPPPWidget::enterPressedInPW() {
  connect_b->setFocus();
}

// triggered by the session manager
void KPPPWidget::saveMyself() {
    gpppdata.save();
}

void KPPPWidget::shutDown() {
    interruptConnection();
    saveMyself();
}

void KPPPWidget::log_window_toggled(bool on) {
  gpppdata.set_show_log_window(on);
}


void KPPPWidget::setup() {
  prepareSetupDialog();

  if(tabWindow->exec())
    gpppdata.save();
  else
    gpppdata.cancel();
}


void KPPPWidget::resetaccounts() {
  connectto_c->clear();

  int count = gpppdata.accountCount();

  // enable/disable controls
  connectto_c->setEnabled(count > 0);
  setButtons();

  //load the accounts
  for(int i=0; i < count; i++) {
    gpppdata.setAccountByIndex(i);
     connectto_c->addItem(gpppdata.accname());
  }

  //set the default account
  if(!gpppdata.defaultAccount().isEmpty()) {
    for(int i=0; i < count; i++)
       if(gpppdata.defaultAccount() == connectto_c->itemText(i)) {
 	connectto_c->setCurrentIndex(i);
	gpppdata.setAccountByIndex(i);

	ID_Edit->setText(gpppdata.storedUsername());
	PW_Edit->setText(gpppdata.storedPassword());
    }
  }
  else
    if(count > 0) {
       gpppdata.setDefaultAccount(connectto_c->itemText(0));
        gpppdata.save();
	ID_Edit->setText(gpppdata.storedUsername());
	PW_Edit->setText(gpppdata.storedPassword());
    }

  connect(ID_Edit, SIGNAL(textChanged(QString)),
 	  this, SLOT(usernameChanged(QString)));

  connect(PW_Edit, SIGNAL(textChanged(QString)),
 	  this, SLOT(passwordChanged(QString)));

  if (ID_Edit->text().isEmpty())
      ID_Edit->setFocus();
  else if (PW_Edit->text().isEmpty())
      PW_Edit->setFocus();

}

void KPPPWidget::resetmodems() {
  modem_c->clear();

  int count = gpppdata.modemCount();

  // enable/disable controls
  modem_c->setEnabled(count > 0);
  setButtons();

  //load the modems
  for(int i=0; i < count; i++) {
    gpppdata.setModemByIndex(i);
    modem_c->addItem(gpppdata.modname());
  }

  if (count > 1 && !m_bModemCShown) {
      l1->addWidget(label7, 1, 1);
      l1->addWidget(modem_c, 1, 2);
      m_bModemCShown = true;
  } else if (count <= 1 && m_bModemCShown){
      l1->removeWidget(label7);
      l1->removeWidget(modem_c);
      m_bModemCShown = false;
  }
  label7->setVisible(m_bModemCShown);
  modem_c->setVisible(m_bModemCShown);
  layout()->invalidate();
  setFixedSize(sizeHint());

  //set the default modem
  if(!gpppdata.defaultModem().isEmpty()) {
    for(int i=0; i < count; i++)
       if(gpppdata.defaultModem() == modem_c->itemText(i)) {
 	modem_c->setCurrentIndex(i);
	gpppdata.setModemByIndex(i);

    }
  }
  else
    if(count > 0) {
       gpppdata.setDefaultModem(modem_c->itemText(0));
        gpppdata.save();
    }
}

void KPPPWidget::setButtons()
{
	int acccount = gpppdata.accountCount();
	int modcount = gpppdata.modemCount();

  // enable/disable controls
  connect_b->setEnabled(acccount > 0 && modcount > 0);
  log->setEnabled(acccount > 0 && modcount > 0);
  ID_Edit->setEnabled(acccount > 0 && modcount > 0);
  PW_Edit->setEnabled(acccount > 0 && modcount > 0);

}


void KPPPWidget::interruptConnection() {
  // interrupt dial up
  if (con->isVisible())
    emit con->cancelbutton();

  // disconnect if online
  if (gpppdata.pppdRunning())
    emit disconnect();		/* FIXME: are we emitting a slot here!!!??? */
}

void KPPPWidget::sigPPPDDied() {
  kDebug(5002) << "Received a SIGUSR1";

    // if we are not connected pppdpid is -1 so have have to check for that
    // in the followin line to make sure that we don't raise a false alarm
    // such as would be the case when the log file viewer exits.
    if(gpppdata.pppdRunning() || gpppdata.pppdError()) {
      kDebug(5002) << "It was pppd that died";

      // when we killpppd() on Cancel in ConnectWidget
      // we set pppid to -1 so we won't
      // enter this block

      // just to be sure
      Requester::rq->removeSecret(AUTH_PAP);
      Requester::rq->removeSecret(AUTH_CHAP);

      gpppdata.setpppdRunning(false);

      // stop the disconnect timer (just in case)
      disconnectTimer->stop();
      // signal other applications that we are disconnected now
      emit  sig_disconnected();
      kDebug(5002) << "Executing command on disconnect since pppd has died.";
      QApplication::flush();
      execute_command(gpppdata.command_on_disconnect());

      stopAccounting();

      con_win->stopClock();
      DockWidget::dock_widget->stop_stats();
      DockWidget::dock_widget->hide();

      if(!gpppdata.pppdError())
        gpppdata.setpppdError(E_PPPD_DIED);
      removedns();
      Modem::modem->unlockdevice();
      con->pppdDied();

      Requester::rq->pppdExitStatus();
      gpppdata.setWaitCallback(gpppdata.callbackType() && Requester::rq->lastStatus == E_CBCP_WAIT);

      if(!gpppdata.automatic_redial() && !gpppdata.waitCallback()) {
	quit_b->setFocus();
	show();
	con_win->stopClock();
	stopAccounting();
	con_win->hide();
	con->hide();

        gpppdata.setpppdRunning(false);
	// // not in a signal handler !!!  KNotifyClient::beep();
	QString msg;
	if (gpppdata.pppdError() == E_IF_TIMEOUT)
	    msg = i18n("Timeout expired while waiting for the PPP interface "
                       "to come up.");
	else {
	    msg = i18n("<p>The pppd daemon died unexpectedly!</p>");
	    Requester::rq->pppdExitStatus();
	    if (Requester::rq->lastStatus != 99) {	// more recent pppds only
		msg += i18n("<p>Exit status: %1", Requester::rq->lastStatus);
		msg += i18n("</p><p>See 'man pppd' for an explanation of the error "
			    "codes or take a look at the kppp FAQ on "
			    "  <a href=\"%1\">%1</a></p>",
                        QString("http://developer.kde.org/~kppp/index.html"));
	    }
	}

	if(KMessageBox::warningYesNo(0, msg, i18n("Error"), KStandardGuiItem::ok(), KGuiItem(i18n("&Details"))) == KMessageBox::No)
	  PPPL_ShowLog();
      } else { /* reconnect on disconnect */
        if(gpppdata.waitCallback())
          kDebug(5002) << "Waiting for callback... ";
        else
          kDebug(5002) << "Trying to reconnect... ";

        if(gpppdata.authMethod() == AUTH_PAP ||
	   gpppdata.authMethod() == AUTH_CHAP ||
	   gpppdata.authMethod() == AUTH_PAPCHAP)
          Requester::rq->setSecret(gpppdata.authMethod(),
				   encodeWord(gpppdata.storedUsername()),
				   encodeWord(gpppdata.password()));

	con_win->hide();
	con_win->stopClock();
	stopAccounting();
	gpppdata.setpppdRunning(false);
	// not in a signal handler !!!  KNotifyClient::beep();
	emit cmdl_start();
    }
  }
  gpppdata.setpppdError(0);
}


void KPPPWidget::sigChld() {
  kDebug(5002) << "sigchld()";
  //  pid_t id = wait(0L);
  //  if(id == helperPid && helperPid != -1) {
  //    kDebug(5002) << "It was the setuid child that died";
 // helperPid = -1;
    QString msg = i18n("kppp's helper process just died.\n"
                       "Since further execution would be pointless, "
                       "kppp will shut down now.");
    KMessageBox::error(0L, msg);
    remove_pidfile();
    exit(1);
    //  }
}


void KPPPWidget::newdefaultaccount(int i) {
  gpppdata.setDefaultAccount(connectto_c->itemText(i));
  gpppdata.save();
  ID_Edit->setText(gpppdata.storedUsername());
  PW_Edit->setText(gpppdata.storedPassword());
}

void KPPPWidget::newdefaultmodem(int i) {
  gpppdata.setDefaultModem(modem_c->itemText(i));
  gpppdata.save();
}



void KPPPWidget::expandbutton() {
  setup();
}


void KPPPWidget::beginConnect() {
  // make sure to connect to the account that is selected in the combo box
  // (exeption: an account given by a command line argument)
  if(!m_bCmdlAccount) {
    gpppdata.setAccount(connectto_c->currentText());
    gpppdata.setPassword(PW_Edit->text());
  } else {
    gpppdata.setPassword(gpppdata.storedPassword());
  }

  QFileInfo info(pppdPath());

  if(!info.exists()){
    KMessageBox::error(this, i18n("Cannot find the PPP daemon!\n"
                              "Make sure that pppd is installed and "
                              "that you have entered the correct path."));
    return;
  }
#if 0
  if(!info.isExecutable()){

    QString string;
    string = i18n("kppp cannot execute:\n %1\n"
    		   "Please make sure that you have given kppp "
		   "setuid permission and that "
		   "pppd is executable.", gpppdata.pppdPath());
    KMessageBox::error(this, string);
    return;

  }
#endif

  KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
  QString device = "";
  if (args->isSet("dev"))
    device = args->getOption("dev");
  else
    device = gpppdata.modemDevice();

  QFileInfo info2(device);

  if(!info2.exists()){
    QString string;
    string = i18n("kppp can not find:\n %1\nPlease make sure you have setup "
		   "your modem device properly "
		   "and/or adjust the location of the modem device on "
		   "the modem tab of "
		   "the setup dialog.", device);
    KMessageBox::error(this, string);
    return;
  }

  // if this is a PAP or CHAP account, ensure that username is
  // supplied
  if(gpppdata.authMethod() == AUTH_PAP ||
     gpppdata.authMethod() == AUTH_CHAP ||
     gpppdata.authMethod() == AUTH_PAPCHAP ) {
    if(ID_Edit->text().isEmpty()) {
      KMessageBox::error(this,
			   i18n(
                           "You have selected the authentication "
			   "method PAP or CHAP. This requires that you "
			   "supply a username and a password."));
      return;
    } else {
      if(!Requester::rq->setSecret(gpppdata.authMethod(),
				   encodeWord(gpppdata.storedUsername()),
				   encodeWord(gpppdata.password()))) {
	QString s;
	s = i18n("Cannot create PAP/CHAP authentication\n"
				     "file \"%1\"", QString(PAP_AUTH_FILE));
	KMessageBox::error(this, s);
	return;
      }
    }
  }

  if (gpppdata.phonenumber().isEmpty()) {
    QString s = i18n("You must specify a telephone number.");
    KMessageBox::error(this, s);
    return;
  }

  hide();

  QString tit = i18n("Connecting to: %1", gpppdata.accname());
  con->setWindowTitle(tit);
  con->enableButtons();
  con->show();

  bool show_debug = gpppdata.get_show_log_window();
  con->debug->setChecked(show_debug);	// toggle button
  debugwindow->clear();
  if (!show_debug)
    debugwindow->hide();
  else {
    debugwindow->show();
    con->raise();
  }

  emit begin_connect();
}

void KPPPWidget::disconnect() {
  if (disconnectTimer->isActive()) return; // you had already pressed disconnect before

  // signal other applications that we are about to go offline now
  emit sig_aboutToDisconnect();

  con_win->hide();
  con->show();
  con->disableButtons(); // will reenable them later in delayedDisconnect()
  con->setWindowTitle(i18n("Disconnecting..."));

  if (!gpppdata.command_before_disconnect().isEmpty()) {
    con->setMsg(i18n("Executing command before disconnection."));

    qApp->processEvents();
    QApplication::flush();
    pid_t id = execute_command(gpppdata.command_before_disconnect());
    int i, status;

    do {
      qApp->processEvents();
      i = waitpid(id, &status, WNOHANG);
      usleep(500000);
    } while (i == 0 && errno == 0);
  }

  con->setMsg(i18n("Announcing disconnection."));

  // this is no longer necessary since I'm delaying disconnection usign a QTimer
  //  qApp->processEvents();

  // set the timer to call delayedDisconnect() in DISCONNECT_DELAY ms
  disconnectTimer->setSingleShot(true);
  disconnectTimer->start(DISCONNECT_DELAY);
}

void KPPPWidget::delayedDisconnect() {
  // this is where the actual disconnection takes place
  con->hide();

  statdlg->stop_stats();
  Requester::rq->killPPPDaemon();

  // signal other applications that we are disconnected now
  emit sig_disconnected();
  QApplication::flush();
  execute_command(gpppdata.command_on_disconnect());

  Requester::rq->removeSecret(AUTH_PAP);
  Requester::rq->removeSecret(AUTH_CHAP);

  removedns();
  Modem::modem->unlockdevice();

  con_win->stopClock();
  p_kppp->stopAccounting();
  con_win->hide();

  DockWidget::dock_widget->stop_stats();
  DockWidget::dock_widget->hide();

  if(m_bQuitOnDisconnect)
    kapp->exit(0);
  else {
    quit_b->setFocus();
    show();
  }
}


void KPPPWidget::helpbutton() {
  KToolInvocation::invokeHelp();
}


void KPPPWidget::quitbutton() {
  if(gpppdata.pppdRunning()) {
    int ok = KMessageBox::warningContinueCancel(this,
			    i18n("Exiting kPPP will close your PPP Session."),
			    i18n("Quit kPPP?"), KStandardGuiItem::quit());
    if(ok == KMessageBox::Continue) {
      Requester::rq->killPPPDaemon();

      // stop the disconnect delay timer
      disconnectTimer->stop();

      // signal other applications that we are disconnected now
      emit sig_disconnected();
      QApplication::flush();
      execute_command(gpppdata.command_on_disconnect());
      removedns();
      Modem::modem->unlockdevice();
    }
  } else {
    if (!gpppdata.accname().isEmpty() && !gpppdata.storePassword())
      gpppdata.setStoredPassword("");
  }
  gpppdata.save();
  qApp->quit();
}


void KPPPWidget::rulesetLoadError() {
  KMessageBox::error(this, ruleset_load_errmsg);
}


void KPPPWidget::startAccounting() {
  // volume accounting
  stats->totalbytes = 0;

  kDebug(5002) << "AcctEnabled: " << gpppdata.AcctEnabled();

  // load the ruleset
  if(!gpppdata.AcctEnabled())
    return;

  QString d = AccountingBase::getAccountingFile(gpppdata.accountingFile());
  //  if(::access(d.data(), X_OK) != 0)
    acct = new Accounting(this, stats);
    //  else
    //    acct = new ExecutableAccounting(this);

  // connect to the accounting object
  connect(acct, SIGNAL(changed(QString,QString)),
	  con_win, SLOT(slotAccounting(QString,QString)));

  if(!acct->loadRuleSet(gpppdata.accountingFile())) {
    QString s= i18n("Can not load the accounting "
    		    "ruleset \"%1\".", gpppdata.accountingFile());

    // starting the messagebox with a timer will prevent us
    // from blocking the calling function ConnectWidget::timerEvent
    ruleset_load_errmsg = s;
    QTimer::singleShot(0, this, SLOT(rulesetLoadError()));
    return;
  } else
    acct->slotStart();
}

void KPPPWidget::stopAccounting() {
  // store volume accounting
  if(stats->totalbytes != 0)
    gpppdata.setTotalBytes(stats->totalbytes);

  if(!gpppdata.AcctEnabled())
    return;

  if(acct != 0) {
    acct->slotStop();
    delete acct;
    acct = 0;
  }
}


void KPPPWidget::showStats() {
  if(statdlg) {
    statdlg->toCurrentDesktop();
    statdlg->show();
    statdlg->raise();
  }
}


void KPPPWidget::usernameChanged(const QString &) {
  // store username for later use
  gpppdata.setStoredUsername(ID_Edit->text());
}


void KPPPWidget::passwordChanged(const QString &) {
    // store the password if so requested
  if(gpppdata.storePassword())
    gpppdata.setStoredPassword(PW_Edit->text());
  else
    gpppdata.setStoredPassword("");
}


void KPPPWidget::setPW_Edit(const QString &pw) {
  PW_Edit->setText(pw);
}


void KPPPWidget::resetCosts(const QString &s) {
  AccountingBase::resetCosts(s);
}


void KPPPWidget::resetVolume(const QString &s) {
  AccountingBase::resetVolume(s);
}

/**
 * pppd's getword() function knows about escape characters.
 * If we write the username and password to the secrets file
 * we'll therefore have to escape back slashes.
 */
QString KPPPWidget::encodeWord(const QString &s) {
    QString r = s;
    r.replace(QRegExp("\\"), "\\\\");
    return r;
}

void KPPPWidget::setQuitOnDisconnect (bool b)
{
    m_bQuitOnDisconnect = b;
}

void KPPPWidget::showNews() {
#ifdef KPPP_SHOW_NEWS
  /*
   * Introduce the QuickHelp feature to new users of this version
   */
  #define QUICKHELP_HINT "Hint_QuickHelp"
  if(gpppdata.readNumConfig(GENERAL_GRP, QUICKHELP_HINT, 0) == 0) {
    KDialog dlg();
    dlg.setCaption(i18n("Recent Changes in KPPP"));

    QVBoxLayout *tl = new QVBoxLayout(&dlg);
    tl->setSpacing(10);
    tl->setMargin(10);
    QHBoxLayout *l1 = new QHBoxLayout(10);
    QVBoxLayout *l2 = new QVBoxLayout(10);
    tl->addLayout(l1);

    QLabel *icon = new QLabel(&dlg);
    icon->setPixmap(BarIcon("exclamation"));
    icon->setFixedSize(icon->sizeHint());
    l1->addWidget(icon);
    l1->addLayout(l2);

    QLabel *l = new QLabel(i18n("From version 1.4.8 on, kppp has a new feature\n"
			      "called \"Quickhelp\". It is similar to a tooltip,\n"
			      "but you can activate it whenever you want.\n"
			      "\n"
			      "To activate it, simply click on a control (like\n"
			      "a button or a label) with the right mouse button.\n"
			      "If the item supports Quickhelp, a popup menu\n"
			      "will appear leading to Quickhelp.\n"
			      "\n"
			      "To test it, right-click somewhere in this text."),
			 &dlg);

    QCheckBox *cb = new QCheckBox(i18n("Do not show this hint again"), &dlg);
    cb->setFixedSize(cb->sizeHint());

    dlg.setButtons(Ok)

    l2->addWidget(l);
    l2->addWidget(cb);

    QString tmp = i18n("This is an example of <b>QuickHelp</b>.\n"
		       "This window will stay open until you\n"
		       "click a mouse button or a press a key.\n");

    cb->setWhatsThis(tmp);
    l->setWhatsThis( tmp);

    dlg.exec();
    if(cb->isChecked()) {
      gpppdata.writeConfig(GENERAL_GRP, QUICKHELP_HINT, 1);
      gpppdata.save();
    }
  }
#endif
}


#include "kpppwidget.moc"