You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
505 lines
13 KiB
505 lines
13 KiB
//===========================================================================
|
|
//
|
|
// This file is part of the TDE project
|
|
//
|
|
// Copyright (c) 1999 Martin R. Jones <mjones@kde.org>
|
|
// Copyright (c) 2012 Timothy Pearson <kb9vqf@pearsoncomputing.net>
|
|
//
|
|
|
|
|
|
#include <config.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <kstandarddirs.h>
|
|
#include <kapplication.h>
|
|
#include <kservicegroup.h>
|
|
#include <kdebug.h>
|
|
#include <klocale.h>
|
|
#include <tqfile.h>
|
|
#include <tqtimer.h>
|
|
#include <dcopclient.h>
|
|
#include <assert.h>
|
|
|
|
#include "lockeng.h"
|
|
#include "lockeng.moc"
|
|
#include "kdesktopsettings.h"
|
|
|
|
#include "xautolock_c.h"
|
|
extern xautolock_corner_t xautolock_corners[ 4 ];
|
|
|
|
bool trinity_lockeng_sak_available = TRUE;
|
|
|
|
SaverEngine* m_masterSaverEngine = NULL;
|
|
static void sigusr1_handler(int)
|
|
{
|
|
if (m_masterSaverEngine) {
|
|
m_masterSaverEngine->lockProcessWaiting();
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
// Screen saver engine. Doesn't handle the actual screensaver window,
|
|
// starting screensaver hacks, or password entry. That's done by
|
|
// a newly started process.
|
|
//
|
|
SaverEngine::SaverEngine()
|
|
: TQWidget(),
|
|
KScreensaverIface(),
|
|
mBlankOnly(false),
|
|
mSAKProcess(NULL),
|
|
mTerminationRequested(false)
|
|
{
|
|
struct sigaction act;
|
|
|
|
// handle SIGUSR1
|
|
m_masterSaverEngine = this;
|
|
act.sa_handler= sigusr1_handler;
|
|
sigemptyset(&(act.sa_mask));
|
|
sigaddset(&(act.sa_mask), SIGUSR1);
|
|
act.sa_flags = 0;
|
|
sigaction(SIGUSR1, &act, 0L);
|
|
|
|
// Save X screensaver parameters
|
|
XGetScreenSaver(tqt_xdisplay(), &mXTimeout, &mXInterval,
|
|
&mXBlanking, &mXExposures);
|
|
|
|
mState = Waiting;
|
|
mXAutoLock = 0;
|
|
mEnabled = false;
|
|
|
|
connect(&mLockProcess, TQT_SIGNAL(processExited(KProcess *)),
|
|
TQT_SLOT(lockProcessExited()));
|
|
|
|
mSAKProcess = new KProcess;
|
|
*mSAKProcess << "tdmtsak";
|
|
connect(mSAKProcess, TQT_SIGNAL(processExited(KProcess*)), this, TQT_SLOT(slotSAKProcessExited()));
|
|
|
|
TQTimer::singleShot( 0, this, TQT_SLOT(handleSecureDialog()) );
|
|
|
|
configure();
|
|
|
|
mLockProcess.clearArguments();
|
|
TQString path = KStandardDirs::findExe( "kdesktop_lock" );
|
|
if( path.isEmpty())
|
|
{
|
|
kdDebug( 1204 ) << "Can't find kdesktop_lock!" << endl;
|
|
}
|
|
mLockProcess << path;
|
|
mLockProcess << TQString( "--internal" ) << TQString( "%1" ).arg(getpid());
|
|
if (mLockProcess.start() == false )
|
|
{
|
|
kdDebug( 1204 ) << "Failed to start kdesktop_lock!" << endl;
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
// Destructor - usual cleanups.
|
|
//
|
|
SaverEngine::~SaverEngine()
|
|
{
|
|
if (mState == Waiting) {
|
|
kill(mLockProcess.pid(), SIGKILL);
|
|
}
|
|
|
|
mLockProcess.detach(); // don't kill it if we crash
|
|
delete mXAutoLock;
|
|
|
|
// Restore X screensaver parameters
|
|
XSetScreenSaver(tqt_xdisplay(), mXTimeout, mXInterval, mXBlanking,
|
|
mXExposures);
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
|
|
// This should be called only using DCOP.
|
|
void SaverEngine::lock()
|
|
{
|
|
bool ok = true;
|
|
if (mState == Waiting)
|
|
{
|
|
mSAKProcess->kill(SIGTERM);
|
|
ok = startLockProcess( ForceLock );
|
|
// It takes a while for kdesktop_lock to start and lock the screen.
|
|
// Therefore delay the DCOP call until it tells kdesktop that the locking is in effect.
|
|
// This is done only for --forcelock .
|
|
if( ok && mState != Saving )
|
|
{
|
|
DCOPClientTransaction* trans = kapp->dcopClient()->beginTransaction();
|
|
mLockTransactions.append( trans );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
mLockProcess.kill( SIGHUP );
|
|
}
|
|
}
|
|
|
|
void SaverEngine::processLockTransactions()
|
|
{
|
|
for( TQValueVector< DCOPClientTransaction* >::ConstIterator it = mLockTransactions.begin();
|
|
it != mLockTransactions.end();
|
|
++it )
|
|
{
|
|
TQCString replyType = "void";
|
|
TQByteArray arr;
|
|
kapp->dcopClient()->endTransaction( *it, replyType, arr );
|
|
}
|
|
mLockTransactions.clear();
|
|
}
|
|
|
|
void SaverEngine::saverLockReady()
|
|
{
|
|
if( mState != Preparing )
|
|
{
|
|
kdDebug( 1204 ) << "Got unexpected saverReady()" << endl;
|
|
}
|
|
kdDebug( 1204 ) << "Saver Lock Ready" << endl;
|
|
processLockTransactions();
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
void SaverEngine::save()
|
|
{
|
|
if (mState == Waiting)
|
|
{
|
|
mSAKProcess->kill(SIGTERM);
|
|
startLockProcess( DefaultLock );
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
void SaverEngine::quit()
|
|
{
|
|
if (mState == Saving || mState == Preparing)
|
|
{
|
|
stopLockProcess();
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
bool SaverEngine::isEnabled()
|
|
{
|
|
return mEnabled;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
bool SaverEngine::enable( bool e )
|
|
{
|
|
if ( e == mEnabled )
|
|
return true;
|
|
|
|
// If we aren't in a suitable state, we will not reconfigure.
|
|
if (mState != Waiting)
|
|
return false;
|
|
|
|
mEnabled = e;
|
|
|
|
if (mEnabled)
|
|
{
|
|
if ( !mXAutoLock ) {
|
|
mXAutoLock = new XAutoLock();
|
|
connect(mXAutoLock, TQT_SIGNAL(timeout()), TQT_SLOT(idleTimeout()));
|
|
}
|
|
mXAutoLock->setTimeout(mTimeout);
|
|
mXAutoLock->setDPMS(true);
|
|
//mXAutoLock->changeCornerLockStatus( mLockCornerTopLeft, mLockCornerTopRight, mLockCornerBottomLeft, mLockCornerBottomRight);
|
|
|
|
// We'll handle blanking
|
|
XSetScreenSaver(tqt_xdisplay(), mTimeout + 10, mXInterval, PreferBlanking, mXExposures);
|
|
kdDebug() << "XSetScreenSaver " << mTimeout + 10 << endl;
|
|
|
|
mXAutoLock->start();
|
|
|
|
kdDebug(1204) << "Saver Engine started, timeout: " << mTimeout << endl;
|
|
}
|
|
else
|
|
{
|
|
if (mXAutoLock)
|
|
{
|
|
delete mXAutoLock;
|
|
mXAutoLock = 0;
|
|
}
|
|
|
|
XForceScreenSaver(tqt_xdisplay(), ScreenSaverReset );
|
|
XSetScreenSaver(tqt_xdisplay(), 0, mXInterval, PreferBlanking, DontAllowExposures);
|
|
kdDebug(1204) << "Saver Engine disabled" << endl;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
bool SaverEngine::isBlanked()
|
|
{
|
|
return (mState != Waiting);
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
void SaverEngine::handleSecureDialog()
|
|
{
|
|
// Wait for SAK press
|
|
if (!mSAKProcess->isRunning()) mSAKProcess->start();
|
|
}
|
|
|
|
void SaverEngine::slotSAKProcessExited()
|
|
{
|
|
int retcode = mSAKProcess->exitStatus();
|
|
if ((retcode != 0) && (mSAKProcess->normalExit())) trinity_lockeng_sak_available = FALSE;
|
|
|
|
if ((mSAKProcess->normalExit()) && (trinity_lockeng_sak_available == TRUE)) {
|
|
bool ok = true;
|
|
if (mState == Waiting)
|
|
{
|
|
ok = startLockProcess( SecureDialog );
|
|
if( ok && mState != Saving )
|
|
{
|
|
}
|
|
}
|
|
else
|
|
{
|
|
mLockProcess.kill( SIGHUP );
|
|
}
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
// Read and apply configuration.
|
|
//
|
|
void SaverEngine::configure()
|
|
{
|
|
// If we aren't in a suitable state, we will not reconfigure.
|
|
if (mState != Waiting)
|
|
return;
|
|
|
|
// create a new config obj to ensure we read the latest options
|
|
KDesktopSettings::self()->readConfig();
|
|
|
|
bool e = KDesktopSettings::screenSaverEnabled();
|
|
mTimeout = KDesktopSettings::timeout();
|
|
|
|
mEnabled = !e; // force the enable()
|
|
|
|
int action;
|
|
action = KDesktopSettings::actionTopLeft();
|
|
xautolock_corners[0] = applyManualSettings(action);
|
|
action = KDesktopSettings::actionTopRight();
|
|
xautolock_corners[1] = applyManualSettings(action);
|
|
action = KDesktopSettings::actionBottomLeft();
|
|
xautolock_corners[2] = applyManualSettings(action);
|
|
action = KDesktopSettings::actionBottomRight();
|
|
xautolock_corners[3] = applyManualSettings(action);
|
|
|
|
enable( e );
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
// Set a variable to indicate only using the blanker and not the saver.
|
|
//
|
|
void SaverEngine::setBlankOnly( bool blankOnly )
|
|
{
|
|
mBlankOnly = blankOnly;
|
|
// FIXME: if running, stop and restart? What about security
|
|
// implications of this?
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
// Start the screen saver.
|
|
//
|
|
bool SaverEngine::startLockProcess( LockType lock_type )
|
|
{
|
|
if (mState != Waiting)
|
|
return true;
|
|
|
|
kdDebug(1204) << "SaverEngine: starting saver" << endl;
|
|
emitDCOPSignal("KDE_start_screensaver()", TQByteArray());
|
|
|
|
if (!mLockProcess.isRunning()) {
|
|
mLockProcess.clearArguments();
|
|
TQString path = KStandardDirs::findExe( "kdesktop_lock" );
|
|
if( path.isEmpty())
|
|
{
|
|
kdDebug( 1204 ) << "Can't find kdesktop_lock!" << endl;
|
|
return false;
|
|
}
|
|
mLockProcess << path;
|
|
mLockProcess << TQString( "--internal" ) << TQString( "%1" ).arg(getpid());
|
|
if (mLockProcess.start() == false )
|
|
{
|
|
kdDebug( 1204 ) << "Failed to start kdesktop_lock!" << endl;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
switch( lock_type )
|
|
{
|
|
case ForceLock:
|
|
mLockProcess.kill(SIGUSR1); // Request forcelock
|
|
break;
|
|
case DontLock:
|
|
mLockProcess.kill(SIGUSR2); // Request dontlock
|
|
break;
|
|
case SecureDialog:
|
|
mLockProcess.kill(SIGWINCH); // Request secure dialog
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (mBlankOnly) {
|
|
mLockProcess.kill(SIGTTIN); // Request blanking
|
|
}
|
|
|
|
mLockProcess.kill(SIGTTOU); // Start lock
|
|
XSetScreenSaver(tqt_xdisplay(), 0, mXInterval, PreferBlanking, mXExposures);
|
|
|
|
mState = Preparing;
|
|
if (mXAutoLock)
|
|
{
|
|
mXAutoLock->stop();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
// Stop the screen saver.
|
|
//
|
|
void SaverEngine::stopLockProcess()
|
|
{
|
|
if (mState == Waiting)
|
|
{
|
|
kdWarning(1204) << "SaverEngine::stopSaver() saver not active" << endl;
|
|
return;
|
|
}
|
|
kdDebug(1204) << "SaverEngine: stopping lock" << endl;
|
|
emitDCOPSignal("KDE_stop_screensaver()", TQByteArray());
|
|
|
|
mTerminationRequested=true;
|
|
mLockProcess.kill();
|
|
|
|
if (mEnabled)
|
|
{
|
|
if (mXAutoLock)
|
|
{
|
|
mXAutoLock->start();
|
|
}
|
|
XForceScreenSaver(tqt_xdisplay(), ScreenSaverReset );
|
|
XSetScreenSaver(tqt_xdisplay(), mTimeout + 10, mXInterval, PreferBlanking, mXExposures);
|
|
}
|
|
processLockTransactions();
|
|
mState = Waiting;
|
|
}
|
|
|
|
void SaverEngine::lockProcessExited()
|
|
{
|
|
bool abnormalExit = false;
|
|
if (mLockProcess.normalExit() == false) {
|
|
abnormalExit = true;
|
|
}
|
|
else {
|
|
if (mLockProcess.exitStatus() != 0) {
|
|
abnormalExit = true;
|
|
}
|
|
}
|
|
if (mTerminationRequested == true) {
|
|
abnormalExit = false;
|
|
mTerminationRequested = false;
|
|
}
|
|
if (abnormalExit == true) {
|
|
// PROBABLE HACKING ATTEMPT DETECTED
|
|
// Terminate the TDE session ASAP!
|
|
// Values are explained at http://lists.kde.org/?l=kde-linux&m=115770988603387
|
|
TQByteArray data;
|
|
TQDataStream arg(data, IO_WriteOnly);
|
|
arg << (int)0 << (int)0 << (int)2;
|
|
if ( ! kapp->dcopClient()->send("ksmserver", "default", "logout(int,int,int)", data) ) {
|
|
// Someone got to DCOP before we did
|
|
// Try an emergency system logout
|
|
system("logout");
|
|
}
|
|
}
|
|
else {
|
|
// Restart the lock process
|
|
if (!mLockProcess.isRunning()) {
|
|
mLockProcess.clearArguments();
|
|
TQString path = KStandardDirs::findExe( "kdesktop_lock" );
|
|
if( path.isEmpty())
|
|
{
|
|
kdDebug( 1204 ) << "Can't find kdesktop_lock!" << endl;
|
|
}
|
|
mLockProcess << path;
|
|
mLockProcess << TQString( "--internal" ) << TQString( "%1" ).arg(getpid());
|
|
if (mLockProcess.start() == false )
|
|
{
|
|
kdDebug( 1204 ) << "Failed to start kdesktop_lock!" << endl;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void SaverEngine::lockProcessWaiting()
|
|
{
|
|
kdDebug(1204) << "SaverEngine: lock exited" << endl;
|
|
if (trinity_lockeng_sak_available == TRUE) {
|
|
handleSecureDialog();
|
|
}
|
|
if( mState == Waiting )
|
|
return;
|
|
emitDCOPSignal("KDE_stop_screensaver()", TQByteArray());
|
|
if (mEnabled)
|
|
{
|
|
if (mXAutoLock)
|
|
{
|
|
mXAutoLock->start();
|
|
}
|
|
XForceScreenSaver(tqt_xdisplay(), ScreenSaverReset );
|
|
XSetScreenSaver(tqt_xdisplay(), mTimeout + 10, mXInterval, PreferBlanking, mXExposures);
|
|
}
|
|
processLockTransactions();
|
|
mState = Waiting;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
// XAutoLock has detected the required idle time.
|
|
//
|
|
void SaverEngine::idleTimeout()
|
|
{
|
|
// disable X screensaver
|
|
XForceScreenSaver(tqt_xdisplay(), ScreenSaverReset );
|
|
XSetScreenSaver(tqt_xdisplay(), 0, mXInterval, PreferBlanking, DontAllowExposures);
|
|
mSAKProcess->kill(SIGTERM);
|
|
startLockProcess( DefaultLock );
|
|
}
|
|
|
|
xautolock_corner_t SaverEngine::applyManualSettings(int action)
|
|
{
|
|
if (action == 0)
|
|
{
|
|
kdDebug() << "no lock" << endl;
|
|
return ca_nothing;
|
|
}
|
|
else
|
|
if (action == 1)
|
|
{
|
|
kdDebug() << "lock screen" << endl;
|
|
return ca_forceLock;
|
|
}
|
|
else
|
|
if (action == 2)
|
|
{
|
|
kdDebug() << "prevent lock" << endl;
|
|
return ca_dontLock;
|
|
}
|
|
else
|
|
{
|
|
kdDebug() << "no lock nothing" << endl;
|
|
return ca_nothing;
|
|
}
|
|
}
|