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406 lines
10 KiB
406 lines
10 KiB
/*
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Greeter module for xdm
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Copyright (C) 1997, 1998 Steffen Hansen <hansen@kde.org>
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Copyright (C) 2000-2003 Oswald Buddenhagen <ossi@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include "kdm_greet.h"
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#include "kdmshutdown.h"
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#include "kdmconfig.h"
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#include "kgapp.h"
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#include "kgreeter.h"
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#ifdef XDMCP
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# include "kchooser.h"
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#endif
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#include <kprocess.h>
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#include <kcmdlineargs.h>
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#include <kcrash.h>
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#include <kstandarddirs.h>
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#include <ksimpleconfig.h>
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#include <klocale.h>
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#include <kdebug.h>
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#include <libkrandr/libkrandr.h>
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#include <tqtimer.h>
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#include <tqstring.h>
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#include <tqcursor.h>
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#include <tqpalette.h>
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#include <stdlib.h> // free(), exit()
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#include <unistd.h> // alarm()
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/keysym.h>
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#include <X11/cursorfont.h>
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#ifdef HAVE_XCOMPOSITE
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#include <X11/extensions/Xrender.h>
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#include <X11/extensions/Xcomposite.h>
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#endif
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#include <pwd.h>
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bool argb_visual_available = false;
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static int
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ignoreXError( Display *dpy ATTR_UNUSED, XErrorEvent *event ATTR_UNUSED )
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{
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return 0;
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}
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extern "C" {
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static void
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sigAlarm( int )
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{
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exit( EX_RESERVER_DPY );
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}
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}
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GreeterApp::GreeterApp()
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{
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pingInterval = _isLocal ? 0 : _pingInterval;
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if (pingInterval) {
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struct sigaction sa;
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sigemptyset( &sa.sa_mask );
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sa.sa_flags = 0;
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sa.sa_handler = sigAlarm;
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sigaction( SIGALRM, &sa, 0 );
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alarm( pingInterval * 70 ); // sic! give the "proper" pinger enough time
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startTimer( pingInterval * 60000 );
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}
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}
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GreeterApp::GreeterApp(Display *dpy, Qt::HANDLE visual, Qt::HANDLE colormap) : KApplication(dpy, visual, colormap)
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{
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pingInterval = _isLocal ? 0 : _pingInterval;
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if (pingInterval) {
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struct sigaction sa;
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sigemptyset( &sa.sa_mask );
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sa.sa_flags = 0;
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sa.sa_handler = sigAlarm;
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sigaction( SIGALRM, &sa, 0 );
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alarm( pingInterval * 70 ); // sic! give the "proper" pinger enough time
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startTimer( pingInterval * 60000 );
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}
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}
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void
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GreeterApp::timerEvent( TQTimerEvent * )
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{
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alarm( 0 );
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if (!PingServer( qt_xdisplay() ))
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::exit( EX_RESERVER_DPY );
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alarm( pingInterval * 70 ); // sic! give the "proper" pinger enough time
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}
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bool
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GreeterApp::x11EventFilter( XEvent * ev )
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{
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KeySym sym;
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switch (ev->type) {
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case FocusIn:
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case FocusOut:
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// Hack to tell dialogs to take focus when the keyboard is grabbed
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ev->xfocus.mode = NotifyNormal;
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break;
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case KeyPress:
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sym = XLookupKeysym( &ev->xkey, 0 );
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if (sym != XK_Return && !IsModifierKey( sym ))
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emit activity();
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break;
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case ButtonPress:
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emit activity();
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/* fall through */
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case ButtonRelease:
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// Hack to let the RMB work as LMB
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if (ev->xbutton.button == 3)
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ev->xbutton.button = 1;
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/* fall through */
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case MotionNotify:
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if (ev->xbutton.state & Button3Mask)
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ev->xbutton.state = (ev->xbutton.state & ~Button3Mask) | Button1Mask;
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break;
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}
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return false;
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}
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extern bool kde_have_kipc;
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extern "C" {
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static int
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xIOErr( Display * )
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{
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exit( EX_RESERVER_DPY );
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}
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//KSimpleConfig *iccconfig;
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void
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kg_main( const char *argv0 )
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{
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static char *argv[] = { (char *)"kdmgreet", 0 };
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KCmdLineArgs::init( 1, argv, *argv, 0, 0, 0, true );
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kdDebug() << timestamp() << "start" << endl;
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kde_have_kipc = false;
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KApplication::disableAutoDcopRegistration();
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KCrash::setSafer( true );
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#ifdef HAVE_XCOMPOSITE
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// Begin ARGB initialization
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XSetErrorHandler( ignoreXError );
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argb_visual_available = false;
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char *display = 0;
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Display *dpyi = XOpenDisplay( display );
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if ( !dpyi ) {
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kdError() << "cannot connect to X server " << display << endl;
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exit( 1 );
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}
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int screen = DefaultScreen( dpyi );
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Colormap colormap = 0;
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Visual *visual = 0;
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int event_base, error_base;
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if ( XRenderQueryExtension( dpyi, &event_base, &error_base ) ) {
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int nvi;
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XVisualInfo templ;
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templ.screen = screen;
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templ.depth = 32;
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templ.c_class = TrueColor;
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XVisualInfo *xvi = XGetVisualInfo( dpyi, VisualScreenMask | VisualDepthMask
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| VisualClassMask, &templ, &nvi );
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for ( int i = 0; i < nvi; i++ ) {
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XRenderPictFormat *format = XRenderFindVisualFormat( dpyi, xvi[i].visual );
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if ( format->type == PictTypeDirect && format->direct.alphaMask ) {
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visual = xvi[i].visual;
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colormap = XCreateColormap( dpyi, RootWindow( dpyi, screen ), visual, AllocNone );
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kdDebug() << "found visual with alpha support" << endl;
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argb_visual_available = true;
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break;
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}
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}
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}
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XSetErrorHandler( (XErrorHandler)0 );
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GreeterApp *app;
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if ( (argb_visual_available == true) && (!_compositor.isEmpty()) ) {
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app = new GreeterApp(dpyi, Qt::HANDLE( visual ), Qt::HANDLE( colormap ));
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}
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else {
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app = new GreeterApp();
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}
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// End ARGB initialization
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#else
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GreeterApp *app = new GreeterApp();
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#endif
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XSetIOErrorHandler( xIOErr );
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TQString login_user;
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Display *dpy = qt_xdisplay();
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if (!_GUIStyle.isEmpty())
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app->setStyle( _GUIStyle );
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// Load up systemwide display settings
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KRandrSimpleAPI *randrsimple = new KRandrSimpleAPI();
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TQPoint primaryScreenPosition = randrsimple->applySystemwideDisplayConfiguration("", KDE_CONFDIR);
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delete randrsimple;
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// Load up the systemwide ICC profile
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TQString iccConfigFile = TQString(KDE_CONFDIR);
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iccConfigFile += "/kicc/kiccconfigrc";
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KSimpleConfig iccconfig(iccConfigFile, true);
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if (iccconfig.readBoolEntry("EnableICC", false) == true) {
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TQString iccCommand = TQString("/usr/bin/xcalib ");
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iccCommand += iccconfig.readEntry("ICCFile");
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iccCommand += TQString(" &");
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system(iccCommand.ascii());
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}
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_colorScheme = locate( "data", "kdisplay/color-schemes/" + _colorScheme + ".kcsrc" );
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if (!_colorScheme.isEmpty()) {
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KSimpleConfig config( _colorScheme, true );
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config.setGroup( "Color Scheme" );
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app->setPalette( app->createApplicationPalette( &config, 7 ) );
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}
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app->setFont( _normalFont );
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setup_modifiers( dpy, _numLockStatus );
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SecureDisplay( dpy );
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KProcess *proc = 0;
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KProcess *comp = 0;
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if (!_grabServer) {
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if (_useBackground) {
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proc = new KProcess;
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*proc << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + "krootimage";
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*proc << _backgroundCfg;
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proc->start();
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}
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GSendInt( G_SetupDpy );
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GRecvInt();
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}
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if (!_compositor.isEmpty()) {
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comp = new KProcess;
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*comp << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + _compositor.ascii();
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comp->start(KProcess::NotifyOnExit, KProcess::Stdin);
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}
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GSendInt( G_Ready );
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kdDebug() << timestamp() << " main1" << endl;
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setCursor( dpy, app->desktop()->winId(), XC_left_ptr );
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for (;;) {
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int rslt, cmd = GRecvInt();
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if (cmd == G_ConfShutdown) {
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int how = GRecvInt(), uid = GRecvInt();
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char *os = GRecvStr();
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KDMSlimShutdown::externShutdown( how, os, uid );
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if (os)
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free( os );
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GSendInt( G_Ready );
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_autoLoginDelay = 0;
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continue;
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}
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if (cmd == G_ErrorGreet) {
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if (KGVerify::handleFailVerify( TQT_TQWIDGET(tqApp->desktop()->screen( _greeterScreen )) ))
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break;
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_autoLoginDelay = 0;
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cmd = G_Greet;
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}
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KProcess *proc2 = 0;
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app->setOverrideCursor( Qt::WaitCursor );
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FDialog *dialog;
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#ifdef XDMCP
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if (cmd == G_Choose) {
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dialog = new ChooserDlg;
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GSendInt( G_Ready ); /* tell chooser to go into async mode */
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GRecvInt(); /* ack */
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} else
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#endif
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{
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if ((cmd != G_GreetTimed && !_autoLoginAgain) ||
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_autoLoginUser.isEmpty())
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_autoLoginDelay = 0;
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if (_useTheme && !_theme.isEmpty()) {
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// Qt4 has a nasty habit of generating BadWindow errors in normal operation, so we simply ignore them
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// This also prevents the user from being dropped to a console login if Xorg glitches or is buggy
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XSetErrorHandler( ignoreXError );
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KThemedGreeter *tgrt;
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dialog = tgrt = new KThemedGreeter;
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kdDebug() << timestamp() << " themed" << endl;
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if (!tgrt->isOK()) {
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delete tgrt;
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dialog = new KStdGreeter;
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dialog->move(primaryScreenPosition.x(), primaryScreenPosition.y());
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}
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XSetErrorHandler( (XErrorHandler)0 );
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} else {
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dialog = new KStdGreeter;
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dialog->move(dialog->x() + primaryScreenPosition.x(), dialog->y() + primaryScreenPosition.y());
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}
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TQPoint oldCursorPos = TQCursor::pos();
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TQCursor::setPos(oldCursorPos.x() + primaryScreenPosition.x(), oldCursorPos.y() + primaryScreenPosition.y());
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if (*_preloader) {
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proc2 = new KProcess;
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*proc2 << _preloader;
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proc2->start();
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}
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}
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app->restoreOverrideCursor();
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Debug( "entering event loop\n" );
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// Qt4 has a nasty habit of generating BadWindow errors in normal operation, so we simply ignore them
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// This also prevents the user from being dropped to a console login if Xorg glitches or is buggy
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XSetErrorHandler( ignoreXError );
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rslt = dialog->exec();
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XSetErrorHandler( (XErrorHandler)0 );
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Debug( "left event loop\n" );
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login_user = static_cast<KGreeter*>(dialog)->curUser;
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delete dialog;
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delete proc2;
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#ifdef XDMCP
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switch (rslt) {
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case ex_greet:
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GSendInt( G_DGreet );
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continue;
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case ex_choose:
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GSendInt( G_DChoose );
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continue;
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default:
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break;
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}
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#endif
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break;
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}
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KGVerify::done();
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if (comp) {
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if (_compositor == "kompmgr") {
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// Change process UID
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// Get user UID
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passwd* userinfo = getpwnam(login_user.ascii());
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if (userinfo) {
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TQString newuid = TQString("%1").arg(userinfo->pw_uid);
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// kompmgr allows us to change its uid in this manner:
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// 1.) Send SIGUSER1
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// 2.) Send the new UID to it on the command line
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comp->kill(SIGUSR1);
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comp->writeStdin(newuid.ascii(), newuid.length());
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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.
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}
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}
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comp->closeStdin();
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comp->detach();
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delete comp;
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}
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delete proc;
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UnsecureDisplay( dpy );
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restore_modifiers();
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XSetInputFocus( qt_xdisplay(), PointerRoot, PointerRoot, CurrentTime );
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delete app;
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}
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} // extern "C"
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#include "kgapp.moc"
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