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tdebase/tdm/kfrontend/kgapp.cpp

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/*
Greeter module for xdm
Copyright (C) 1997, 1998 Steffen Hansen <hansen@kde.org>
Copyright (C) 2000-2003 Oswald Buddenhagen <ossi@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU 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 General Public License for more details.
You should have received a copy of the GNU 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 <config.h>
#include "tdm_greet.h"
#include "tdmshutdown.h"
#include "tdmconfig.h"
#include "kgapp.h"
#include "kgreeter.h"
#ifdef XDMCP
# include "kchooser.h"
#endif
#include "sakdlg.h"
#include <kuser.h>
#include <kprocess.h>
#include <tdecmdlineargs.h>
#include <kcrash.h>
#include <kstandarddirs.h>
#include <ksimpleconfig.h>
#include <tdelocale.h>
#include <kdebug.h>
#ifdef WITH_XRANDR
#include <libtderandr/libtderandr.h>
#endif
#include <tqtimer.h>
#include <tqfile.h>
#include <tqstring.h>
#include <tqcursor.h>
#include <tqpalette.h>
#include <stdlib.h> // free(), exit()
#include <unistd.h> // alarm()
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include <X11/cursorfont.h>
#ifdef HAVE_XCOMPOSITE
#include <X11/extensions/Xrender.h>
#include <X11/extensions/Xcomposite.h>
#endif
#include <pwd.h>
bool argb_visual_available = false;
bool has_twin = false;
bool is_themed = false;
bool trinity_desktop_lock_use_sak = TRUE;
bool trinity_desktop_synchronize_keyboard_lights = TRUE;
bool trinity_desktop_watch_cryptographic_cards = TRUE;
TQPoint primaryScreenPosition;
static int
ignoreXError( Display *dpy ATTR_UNUSED, XErrorEvent *event ATTR_UNUSED )
{
return 0;
}
extern "C" {
static void
sigAlarm( int )
{
exit( EX_RESERVER_DPY );
}
}
GreeterApp::GreeterApp()
{
init();
}
GreeterApp::GreeterApp(Display *dpy) : TDEApplication(dpy)
{
init();
}
GreeterApp::GreeterApp(Display *dpy, TQt::HANDLE visual, TQt::HANDLE colormap) : TDEApplication(dpy, visual, colormap)
{
init();
}
GreeterApp::~GreeterApp()
{
//
}
void GreeterApp::init()
{
pingInterval = _isLocal ? 0 : _pingInterval;
if (pingInterval) {
struct sigaction sa;
sigemptyset( &sa.sa_mask );
sa.sa_flags = 0;
sa.sa_handler = sigAlarm;
sigaction( SIGALRM, &sa, 0 );
alarm( pingInterval * 70 ); // sic! give the "proper" pinger enough time
startTimer( pingInterval * 60000 );
}
#ifdef WITH_TDEHWLIB
TDEHardwareDevices *hwdevices = TDEGlobal::hardwareDevices();
connect(hwdevices, TQT_SIGNAL(hardwareUpdated(TDEGenericDevice*)), this, TQT_SLOT(deviceChanged(TDEGenericDevice*)));
#endif
}
void GreeterApp::deviceChanged(TDEGenericDevice* device) {
#ifdef WITH_TDEHWLIB
#ifdef WITH_XRANDR
if (device->type() == TDEGenericDeviceType::Monitor) {
KRandrSimpleAPI *randrsimple = new KRandrSimpleAPI();
randrsimple->applyHotplugRules(KDE_CONFDIR);
delete randrsimple;
}
#endif // WITH_XRANDR
#endif // WITH_TDEHWLIB
}
void
GreeterApp::timerEvent( TQTimerEvent * )
{
alarm( 0 );
if (!PingServer( tqt_xdisplay() ))
::exit( EX_RESERVER_DPY );
alarm( pingInterval * 70 ); // sic! give the "proper" pinger enough time
}
bool
GreeterApp::x11EventFilter( XEvent * ev )
{
KeySym sym;
switch (ev->type) {
case FocusIn:
case FocusOut:
// Hack to tell dialogs to take focus when the keyboard is grabbed
ev->xfocus.mode = NotifyNormal;
break;
case KeyPress:
sym = XLookupKeysym( &ev->xkey, 0 );
if (sym != XK_Return && !IsModifierKey( sym ))
emit activity();
break;
case ButtonPress:
emit activity();
/* fall through */
case ButtonRelease:
// Hack to let the RMB work as LMB
if (ev->xbutton.button == 3)
ev->xbutton.button = 1;
/* fall through */
case MotionNotify:
if (ev->xbutton.state & Button3Mask)
ev->xbutton.state = (ev->xbutton.state & ~Button3Mask) | Button1Mask;
break;
}
return false;
}
extern bool kde_have_kipc;
extern "C" {
static int
xIOErr( Display * )
{
exit( EX_RESERVER_DPY );
}
//KSimpleConfig *iccconfig;
void
checkSAK(GreeterApp* app)
{
app->restoreOverrideCursor();
SAKDlg sak(0);
sak.exec();
app->setOverrideCursor( TQt::WaitCursor );
}
void
kg_main( const char *argv0 )
{
static char *argv[] = { (char *)"tdmgreet", 0 };
TDECmdLineArgs::init( 1, argv, *argv, 0, 0, 0, true );
kdDebug() << "[tdm-kfrontend] " << timestamp() << "start" << endl;
kde_have_kipc = false;
TDEApplication::disableAutoDcopRegistration();
TDECrash::setSafer( true );
TDEProcess *kbdl = 0;
TDEProcess *ccsm = 0;
TDEProcess *proc = 0;
TDEProcess *comp = 0;
TDEProcess *dcop = 0;
TDEProcess *twin = 0;
#ifdef BUILD_TSAK
trinity_desktop_lock_use_sak = _useSAK;
#else
trinity_desktop_lock_use_sak = false;
#endif
trinity_desktop_synchronize_keyboard_lights = _syncKbdLED;
if (trinity_desktop_synchronize_keyboard_lights &&
TQString(getenv("DISPLAY")).startsWith(":")) {
kbdl = new TDEProcess;
*kbdl << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + "tdekbdledsync";
kbdl->start();
}
if (trinity_desktop_watch_cryptographic_cards) {
ccsm = new TDEProcess;
*ccsm << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + "tdecryptocardwatcher";
ccsm->start();
}
XSetErrorHandler( ignoreXError );
argb_visual_available = false;
char *display = 0;
Display *dpyi = XOpenDisplay( display );
if ( !dpyi ) {
kdError() << "cannot connect to X server " << display << endl;
exit( 1 );
}
#ifdef HAVE_XCOMPOSITE
// Begin ARGB initialization
int screen = DefaultScreen( dpyi );
Colormap colormap = 0;
Visual *visual = 0;
int event_base, error_base;
if ( XRenderQueryExtension( dpyi, &event_base, &error_base ) ) {
int nvi;
XVisualInfo templ;
templ.screen = screen;
templ.depth = 32;
templ.c_class = TrueColor;
XVisualInfo *xvi = XGetVisualInfo( dpyi, VisualScreenMask | VisualDepthMask
| VisualClassMask, &templ, &nvi );
for ( int i = 0; i < nvi; i++ ) {
XRenderPictFormat *format = XRenderFindVisualFormat( dpyi, xvi[i].visual );
if ( format->type == PictTypeDirect && format->direct.alphaMask ) {
visual = xvi[i].visual;
colormap = XCreateColormap( dpyi, RootWindow( dpyi, screen ), visual, AllocNone );
kdDebug() << "[tdm-kfrontend] Found visual with alpha support" << endl;
argb_visual_available = true;
break;
}
}
}
XSync( dpyi, False );
XSetErrorHandler( (XErrorHandler)0 );
GreeterApp *app;
if ((!_compositor.isEmpty()) && ( argb_visual_available == true )) {
app = new GreeterApp(dpyi, TQt::HANDLE( visual ), TQt::HANDLE( colormap ));
}
else {
argb_visual_available = false;
app = new GreeterApp(dpyi);
}
// End ARGB initialization
#else
GreeterApp *app = new GreeterApp(dpyi);
#endif
// Load up systemwide display settings
#ifdef WITH_XRANDR
KRandrSimpleAPI *randrsimple = new KRandrSimpleAPI();
primaryScreenPosition = randrsimple->applyStartupDisplayConfiguration(KDE_CONFDIR);
randrsimple->applyHotplugRules(KDE_CONFDIR);
delete randrsimple;
#endif
// Load up the systemwide ICC profile
TQString iccConfigFile = TQString(KDE_CONFDIR);
iccConfigFile += "/kicc/kiccconfigrc";
KSimpleConfig iccconfig(iccConfigFile, true);
if (iccconfig.readBoolEntry("EnableICC", false) == true) {
TQString iccCommand = TDEGlobal::dirs()->findExe("dispwin");
if (iccCommand.isEmpty())
{
iccCommand = TDEGlobal::dirs()->findExe("xcalib");
}
if (iccCommand.isEmpty())
{
printf("WARNING: Unable to find command to set ICC profile - dispwin or xcalib\n");
}
else
{
iccCommand += TQString(" %1 &").arg(iccconfig.readEntry("ICCFile"));
if (system(iccCommand.local8Bit()) < 0)
{
printf("WARNING: Unable to execute command \"%s\"\n", iccCommand.local8Bit().data());
}
}
}
// Make sure TQt is aware of the screen geometry changes before any dialogs are created
XSync(tqt_xdisplay(), false);
app->processEvents();
TQRect screenRect = TQApplication::desktop()->screenGeometry();
TQCursor::setPos(screenRect.center().x(), screenRect.center().y());
XSetIOErrorHandler( xIOErr );
TQString login_user;
TQString login_card_user;
TQString login_session_wm;
Display *dpy = tqt_xdisplay();
if (!_GUIStyle.isEmpty()) {
app->setStyle( _GUIStyle );
}
_colorScheme = locate( "data", "tdedisplay/color-schemes/" + _colorScheme + ".kcsrc" );
if (!_colorScheme.isEmpty()) {
KSimpleConfig config( _colorScheme, true );
config.setGroup( "Color Scheme" );
app->setPalette( app->createApplicationPalette( &config, 7 ) );
}
app->setFont( _normalFont );
setup_modifiers( dpy, _numLockStatus );
SecureDisplay( dpy );
if (!_grabServer) {
if (_useBackground) {
proc = new TDEProcess;
*proc << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + "krootimage";
*proc << _backgroundCfg;
proc->start();
}
GSendInt( G_SetupDpy );
GRecvInt();
}
if (!_compositor.isEmpty()) {
comp = new TDEProcess;
*comp << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + _compositor.ascii();
comp->start(TDEProcess::NotifyOnExit, TDEProcess::Stdin);
}
if (!_windowManager.isEmpty()) {
if (_windowManager == "twin") {
// Special case
// Start DCOP...
dcop = new TDEProcess;
*dcop << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + "dcopserver" << TQCString("--suicide");
dcop->start();
}
twin = new TDEProcess;
*twin << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + _windowManager.ascii();
if (_windowManager == "twin") {
// Special case
// Do not allow twin to start kompmgr...
*twin << "--disablecompositionmanager";
}
twin->start();
has_twin = true;
}
GSendInt( G_Ready );
kdDebug() << "[tdm-kfrontend] " << timestamp() << " main1" << endl;
setCursor( dpy, app->desktop()->winId(), XC_left_ptr );
for (;;) {
int rslt, cmd = GRecvInt();
if (cmd == G_ConfShutdown) {
int how = GRecvInt(), uid = GRecvInt();
char *os = GRecvStr();
TDMSlimShutdown::externShutdown( how, os, uid );
if (os)
free( os );
GSendInt( G_Ready );
_autoLoginDelay = 0;
continue;
}
if (cmd == G_ErrorGreet) {
if (KGVerify::handleFailVerify( TQT_TQWIDGET(tqApp->desktop()->screen( _greeterScreen )) ))
break;
_autoLoginDelay = 0;
cmd = G_Greet;
}
TDEProcess *proc2 = 0;
app->setOverrideCursor( TQt::WaitCursor );
FDialog *dialog = NULL;
#ifdef XDMCP
if (cmd == G_Choose) {
dialog = new ChooserDlg;
GSendInt( G_Ready ); /* tell chooser to go into async mode */
GRecvInt(); /* ack */
} else
#endif
{
if ((cmd != G_GreetTimed && !_autoLoginAgain) ||
_autoLoginUser.isEmpty())
_autoLoginDelay = 0;
if (_useTheme && !_theme.isEmpty() && !trinity_desktop_lock_use_sak) {
// Qt4 has a nasty habit of generating BadWindow errors in normal operation, so we simply ignore them
// This also prevents the user from being dropped to a console login if Xorg glitches or is buggy
XSetErrorHandler( ignoreXError );
KThemedGreeter *tgrt;
bool has_twin_bkp = has_twin;
is_themed = true;
if (has_twin) {
has_twin = false; // [FIXME] The themed greeter is built on the assumption that there is no window manager available (i.e. it keeps stealing focus) and needs to be repaired.
twin->kill(SIGKILL);
}
dialog = tgrt = new KThemedGreeter;
kdDebug() << "[tdm-kfrontend] " << timestamp() << " themed" << endl;
if (!tgrt->isOK()) {
is_themed = false;
has_twin = has_twin_bkp;
delete tgrt;
if (trinity_desktop_lock_use_sak) {
checkSAK(app);
}
dialog = new KStdGreeter;
#ifdef WITH_XRANDR
dialog->move(dialog->x() + primaryScreenPosition.x(), dialog->y() + primaryScreenPosition.y());
#endif
}
else {
#ifdef WITH_XRANDR
dialog->move(primaryScreenPosition.x(), primaryScreenPosition.y());
#endif
}
XSync( tqt_xdisplay(), False );
XSetErrorHandler( (XErrorHandler)0 );
} else {
if (trinity_desktop_lock_use_sak) {
checkSAK(app);
}
dialog = new KStdGreeter;
#ifdef WITH_XRANDR
dialog->move(dialog->x() + primaryScreenPosition.x(), dialog->y() + primaryScreenPosition.y());
#endif
}
TQPoint oldCursorPos = TQCursor::pos();
#ifdef WITH_XRANDR
TQCursor::setPos(oldCursorPos.x() + primaryScreenPosition.x(), oldCursorPos.y() + primaryScreenPosition.y());
#endif
if (*_preloader) {
proc2 = new TDEProcess;
*proc2 << _preloader;
proc2->start();
}
}
app->restoreOverrideCursor();
Debug( "entering event loop\n" );
// Qt4 has a nasty habit of generating BadWindow errors in normal operation, so we simply ignore them
// This also prevents the user from being dropped to a console login if Xorg glitches or is buggy
XSetErrorHandler( ignoreXError );
rslt = dialog->exec();
XSync( tqt_xdisplay(), False );
XSetErrorHandler( (XErrorHandler)0 );
Debug( "left event loop\n" );
login_user = static_cast<KGreeter*>(dialog)->curUser;
login_card_user = static_cast<KGreeter*>(dialog)->cardLoginUser;
login_session_wm = static_cast<KGreeter*>(dialog)->curWMSession;
if (rslt != ex_greet) {
delete dialog;
}
delete proc2;
#ifdef XDMCP
switch (rslt) {
case ex_greet:
GSendInt( G_DGreet );
continue;
case ex_choose:
GSendInt( G_DChoose );
continue;
default:
break;
}
#endif
break;
}
KGVerify::done();
KUser userinfo(login_user);
if (userinfo.isValid()) {
TQString fileName = userinfo.homeDir() + "/.tde_card_login_state";
TQFile flagFile(fileName);
if ((login_card_user != TQString::null) && (login_user == login_card_user)) {
// Card was likely used to log in
if (flagFile.open(IO_WriteOnly)) {
flagFile.writeBlock("1\n", 2);
fchown(flagFile.handle(), userinfo.uid(), userinfo.gid());
flagFile.close();
}
}
else {
// Card was not used to log in
flagFile.remove();
}
}
if (kbdl) {
kbdl->closeStdin();
kbdl->detach();
}
if (ccsm) {
ccsm->closeStdin();
ccsm->detach();
}
if (comp) {
if (comp->isRunning()) {
if (((login_session_wm == "tde") || (login_session_wm == "trinity") || (login_session_wm == "failsafe")) &&
(_compositor == TDE_COMPOSITOR_BINARY)) {
// Change process UID
// Get user UID
passwd* userinfo = getpwnam(login_user.ascii());
if (userinfo) {
TQString newuid = TQString("%1").arg(userinfo->pw_uid);
// kompmgr allows us to change its uid in this manner:
// 1.) Send SIGUSR1
// 2.) Send the new UID to it on the command line
comp->kill(SIGUSR1);
comp->writeStdin(newuid.ascii(), newuid.length());
usleep(50000); // Give the above function some time to execute. Note that on REALLY slow systems this could fail, leaving kompmgr running as root. TODO: Look into ways to make this more robust.
}
comp->closeStdin();
comp->detach();
}
else {
comp->kill();
}
}
delete comp;
}
if (twin) {
if (twin->isRunning()) {
if ((login_session_wm == "tde") || (login_session_wm == "trinity") || (login_session_wm == "failsafe")) {
twin->closeStdin();
twin->detach();
dcop->detach();
}
else {
twin->kill();
dcop->kill();
}
}
delete twin;
delete dcop;
}
delete proc;
UnsecureDisplay( dpy );
restore_modifiers();
// Qt4 has a nasty habit of generating BadWindow errors in normal operation, so we simply ignore them
// This also prevents the user from being dropped to a console login if Xorg glitches or is buggy
XSetErrorHandler( ignoreXError );
XSetInputFocus( tqt_xdisplay(), PointerRoot, PointerRoot, CurrentTime );
XSync( tqt_xdisplay(), False );
XSetErrorHandler( (XErrorHandler)0 );
delete app;
}
} // extern "C"
#include "kgapp.moc"