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tdebase/kcontrol/kdm/main.cpp

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/*
* main.cpp
*
* Copyright (c) 1999 Matthias Hoelzer-Kluepfel <hoelzer@kde.org>
*
* Requires the Qt widget libraries, available at no cost at
* http://www.troll.no/
*
* 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 <tqlayout.h>
#include <kaboutdata.h>
#include <kgenericfactory.h>
#include <kimageio.h>
#include <kmessagebox.h>
#include <kurldrag.h>
#include "kdm-appear.h"
#include "kdm-font.h"
#include "kdm-users.h"
#include "kdm-shut.h"
#include "kdm-conv.h"
#include "main.h"
#include "background.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <locale.h>
#include <pwd.h>
#include <grp.h>
typedef KGenericFactory<KDModule, TQWidget> KDMFactory;
K_EXPORT_COMPONENT_FACTORY( kcm_kdm, KDMFactory("kdmconfig") )
KURL *decodeImgDrop(TQDropEvent *e, TQWidget *wdg)
{
KURL::List uris;
if (KURLDrag::decode(e, uris) && (uris.count() > 0)) {
KURL *url = new KURL(uris.first());
KImageIO::registerFormats();
if( KImageIO::canRead(KImageIO::type(url->fileName())) )
return url;
TQStringList qs = TQStringList::split('\n', KImageIO::pattern());
qs.remove(qs.begin());
TQString msg = i18n( "%1 "
"does not appear to be an image file.\n"
"Please use files with these extensions:\n"
"%2")
.arg(url->fileName())
.arg(qs.join("\n"));
KMessageBox::sorry( wdg, msg);
delete url;
}
return 0;
}
KSimpleConfig *config;
KDModule::KDModule(TQWidget *parent, const char *name, const TQStringList &)
: KCModule(KDMFactory::instance(), parent, name)
, minshowuid(0)
, maxshowuid(0)
, updateOK(false)
{
KAboutData *about =
new KAboutData(I18N_NOOP("kcmkdm"), I18N_NOOP("KDE Login Manager Config Module"),
0, 0, KAboutData::License_GPL,
I18N_NOOP("(c) 1996 - 2005 The KDM Authors"));
about->addAuthor("Thomas Tanghus", I18N_NOOP("Original author"), "tanghus@earthling.net");
about->addAuthor("Steffen Hansen", 0, "hansen@kde.org");
about->addAuthor("Oswald Buddenhagen", I18N_NOOP("Current maintainer"), "ossi@kde.org");
setQuickHelp( i18n( "<h1>Login Manager</h1> In this module you can configure the "
"various aspects of the KDE Login Manager. This includes "
"the look and feel as well as the users that can be "
"selected for login. Note that you can only make changes "
"if you run the module with superuser rights. If you have not started the KDE "
"Control Center with superuser rights (which is absolutely the right thing to "
"do, by the way), click on the <em>Modify</em> button to acquire "
"superuser rights. You will be asked for the superuser password."
"<h2>Appearance</h2> On this tab page, you can configure how "
"the Login Manager should look, which language it should use, and which "
"GUI style it should use. The language settings made here have no influence on "
"the user's language settings."
"<h2>Font</h2>Here you can choose the fonts that the Login Manager should use "
"for various purposes like greetings and user names. "
"<h2>Background</h2>If you want to set a special background for the login "
"screen, this is where to do it."
"<h2>Shutdown</h2> Here you can specify who is allowed to shutdown/reboot the machine "
"and whether a boot manager should be used."
"<h2>Users</h2>On this tab page, you can select which users the Login Manager "
"will offer you for logging in."
"<h2>Convenience</h2> Here you can specify a user to be logged in automatically, "
"users not needing to provide a password to log in, and other convenience features.<br>"
"Note, that these settings are security holes by their nature, so use them very carefully."));
setAboutData( about );
setlocale( LC_COLLATE, "C" );
KGlobal::locale()->insertCatalogue("kcmbackground");
TQStringList sl;
TQMap<gid_t,TQStringList> tgmap;
TQMap<gid_t,TQStringList>::Iterator tgmapi;
TQMap<gid_t,TQStringList>::ConstIterator tgmapci;
TQMap<TQString, QPair<int,TQStringList> >::Iterator umapi;
struct passwd *ps;
for (setpwent(); (ps = getpwent()); ) {
TQString un( TQFile::decodeName( ps->pw_name ) );
if (usermap.find( un ) == usermap.end()) {
usermap.insert( un, QPair<int,TQStringList>( ps->pw_uid, sl ) );
if ((tgmapi = tgmap.find( ps->pw_gid )) != tgmap.end())
(*tgmapi).append( un );
else
tgmap[ps->pw_gid] = un;
}
}
endpwent();
struct group *grp;
for (setgrent(); (grp = getgrent()); ) {
TQString gn( TQFile::decodeName( grp->gr_name ) );
bool delme = false;
if ((tgmapi = tgmap.find( grp->gr_gid )) != tgmap.end()) {
if ((*tgmapi).count() == 1 && (*tgmapi).first() == gn)
delme = true;
else
for (TQStringList::ConstIterator it = (*tgmapi).begin();
it != (*tgmapi).end(); ++it)
usermap[*it].second.append( gn );
tgmap.remove( tgmapi );
}
if (!*grp->gr_mem ||
(delme && !grp->gr_mem[1] && gn == TQFile::decodeName( *grp->gr_mem )))
continue;
do {
TQString un( TQFile::decodeName( *grp->gr_mem ) );
if ((umapi = usermap.find( un )) != usermap.end()) {
if ((*umapi).second.find( gn ) == (*umapi).second.end())
(*umapi).second.append( gn );
} else
kdWarning() << "group '" << gn << "' contains unknown user '" << un << "'" << endl;
} while (*++grp->gr_mem);
}
endgrent();
for (tgmapci = tgmap.begin(); tgmapci != tgmap.end(); ++tgmapci)
kdWarning() << "user(s) '" << tgmapci.data().join(",")
<< "' have unknown GID " << tgmapci.key() << endl;
config = new KSimpleConfig( TQString::tqfromLatin1( KDE_CONFDIR "/kdm/kdmrc" ));
TQVBoxLayout *top = new TQVBoxLayout(this);
tab = new TQTabWidget(this);
// *****
// _don't_ add a theme configurator until the theming engine is _really_ done!!
// *****
appearance = new KDMAppearanceWidget(this);
tab->addTab(appearance, i18n("A&ppearance"));
connect(appearance, TQT_SIGNAL(changed(bool)), TQT_SIGNAL( changed(bool)));
font = new KDMFontWidget(this);
tab->addTab(font, i18n("&Font"));
connect(font, TQT_SIGNAL(changed(bool)), TQT_SIGNAL(changed(bool)));
background = new KBackground(this);
tab->addTab(background, i18n("&Background"));
connect(background, TQT_SIGNAL(changed(bool)), TQT_SIGNAL(changed(bool)));
sessions = new KDMSessionsWidget(this);
tab->addTab(sessions, i18n("&Shutdown"));
connect(sessions, TQT_SIGNAL(changed(bool)), TQT_SIGNAL(changed(bool)));
users = new KDMUsersWidget(this, 0);
tab->addTab(users, i18n("&Users"));
connect(users, TQT_SIGNAL(changed(bool)), TQT_SIGNAL(changed(bool)));
connect(users, TQT_SIGNAL(setMinMaxUID(int,int)), TQT_SLOT(slotMinMaxUID(int,int)));
connect(this, TQT_SIGNAL(addUsers(const TQMap<TQString,int> &)), users, TQT_SLOT(slotAddUsers(const TQMap<TQString,int> &)));
connect(this, TQT_SIGNAL(delUsers(const TQMap<TQString,int> &)), users, TQT_SLOT(slotDelUsers(const TQMap<TQString,int> &)));
connect(this, TQT_SIGNAL(clearUsers()), users, TQT_SLOT(slotClearUsers()));
convenience = new KDMConvenienceWidget(this, 0);
tab->addTab(convenience, i18n("Con&venience"));
connect(convenience, TQT_SIGNAL(changed(bool)), TQT_SIGNAL(changed(bool)));
connect(this, TQT_SIGNAL(addUsers(const TQMap<TQString,int> &)), convenience, TQT_SLOT(slotAddUsers(const TQMap<TQString,int> &)));
connect(this, TQT_SIGNAL(delUsers(const TQMap<TQString,int> &)), convenience, TQT_SLOT(slotDelUsers(const TQMap<TQString,int> &)));
connect(this, TQT_SIGNAL(clearUsers()), convenience, TQT_SLOT(slotClearUsers()));
load();
if (getuid() != 0 || !config->checkConfigFilesWritable( true )) {
appearance->makeReadOnly();
font->makeReadOnly();
background->makeReadOnly();
users->makeReadOnly();
sessions->makeReadOnly();
convenience->makeReadOnly();
}
top->addWidget(tab);
}
KDModule::~KDModule()
{
delete config;
}
void KDModule::load()
{
appearance->load();
font->load();
background->load();
users->load();
sessions->load();
convenience->load();
propagateUsers();
}
void KDModule::save()
{
appearance->save();
font->save();
background->save();
users->save();
sessions->save();
convenience->save();
config->sync();
}
void KDModule::defaults()
{
if ( getuid() == 0 )
{
appearance->defaults();
font->defaults();
background->defaults();
users->defaults();
sessions->defaults();
convenience->defaults();
propagateUsers();
}
}
void KDModule::propagateUsers()
{
groupmap.clear();
emit clearUsers();
TQMap<TQString,int> lusers;
TQMapConstIterator<TQString, QPair<int,TQStringList> > it;
TQStringList::ConstIterator jt;
TQMap<TQString,int>::Iterator gmapi;
for (it = usermap.begin(); it != usermap.end(); ++it) {
int uid = it.data().first;
if (!uid || (uid >= minshowuid && uid <= maxshowuid)) {
lusers[it.key()] = uid;
for (jt = it.data().second.begin(); jt != it.data().second.end(); ++jt)
if ((gmapi = groupmap.find( *jt )) == groupmap.end()) {
groupmap[*jt] = 1;
lusers['@' + *jt] = -uid;
} else
(*gmapi)++;
}
}
emit addUsers(lusers);
updateOK = true;
}
void KDModule::slotMinMaxUID(int min, int max)
{
if (updateOK) {
TQMap<TQString,int> alusers, dlusers;
TQMapConstIterator<TQString, QPair<int,TQStringList> > it;
TQStringList::ConstIterator jt;
TQMap<TQString,int>::Iterator gmapi;
for (it = usermap.begin(); it != usermap.end(); ++it) {
int uid = it.data().first;
if (!uid) continue;
if ((uid >= minshowuid && uid <= maxshowuid) &&
!(uid >= min && uid <= max)) {
dlusers[it.key()] = uid;
for (jt = it.data().second.begin();
jt != it.data().second.end(); ++jt) {
gmapi = groupmap.find( *jt );
if (!--(*gmapi)) {
groupmap.remove( gmapi );
dlusers['@' + *jt] = -uid;
}
}
} else
if ((uid >= min && uid <= max) &&
!(uid >= minshowuid && uid <= maxshowuid)) {
alusers[it.key()] = uid;
for (jt = it.data().second.begin();
jt != it.data().second.end(); ++jt)
if ((gmapi = groupmap.find( *jt )) == groupmap.end()) {
groupmap[*jt] = 1;
alusers['@' + *jt] = -uid;
} else
(*gmapi)++;
}
}
emit delUsers(dlusers);
emit addUsers(alusers);
}
minshowuid = min;
maxshowuid = max;
}
#include "main.moc"