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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 <qlayout.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, QWidget> KDMFactory;
+K_EXPORT_COMPONENT_FACTORY( kcm_kdm, KDMFactory("kdmconfig") )
+
+KURL *decodeImgDrop(QDropEvent *e, QWidget *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;
+
+ QStringList qs = QStringList::split('\n', KImageIO::pattern());
+ qs.remove(qs.begin());
+
+ QString 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(QWidget *parent, const char *name, const QStringList &)
+ : 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");
+
+ QStringList sl;
+ QMap<gid_t,QStringList> tgmap;
+ QMap<gid_t,QStringList>::Iterator tgmapi;
+ QMap<gid_t,QStringList>::ConstIterator tgmapci;
+ QMap<QString, QPair<int,QStringList> >::Iterator umapi;
+
+ struct passwd *ps;
+ for (setpwent(); (ps = getpwent()); ) {
+ QString un( QFile::decodeName( ps->pw_name ) );
+ if (usermap.find( un ) == usermap.end()) {
+ usermap.insert( un, QPair<int,QStringList>( 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()); ) {
+ QString gn( QFile::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 (QStringList::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 == QFile::decodeName( *grp->gr_mem )))
+ continue;
+ do {
+ QString un( QFile::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( QString::fromLatin1( KDE_CONFDIR "/kdm/kdmrc" ));
+
+ QVBoxLayout *top = new QVBoxLayout(this);
+ tab = new QTabWidget(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, SIGNAL(changed(bool)), SIGNAL( changed(bool)));
+
+ font = new KDMFontWidget(this);
+ tab->addTab(font, i18n("&Font"));
+ connect(font, SIGNAL(changed(bool)), SIGNAL(changed(bool)));
+
+ background = new KBackground(this);
+ tab->addTab(background, i18n("&Background"));
+ connect(background, SIGNAL(changed(bool)), SIGNAL(changed(bool)));
+
+ sessions = new KDMSessionsWidget(this);
+ tab->addTab(sessions, i18n("&Shutdown"));
+ connect(sessions, SIGNAL(changed(bool)), SIGNAL(changed(bool)));
+
+ users = new KDMUsersWidget(this, 0);
+ tab->addTab(users, i18n("&Users"));
+ connect(users, SIGNAL(changed(bool)), SIGNAL(changed(bool)));
+ connect(users, SIGNAL(setMinMaxUID(int,int)), SLOT(slotMinMaxUID(int,int)));
+ connect(this, SIGNAL(addUsers(const QMap<QString,int> &)), users, SLOT(slotAddUsers(const QMap<QString,int> &)));
+ connect(this, SIGNAL(delUsers(const QMap<QString,int> &)), users, SLOT(slotDelUsers(const QMap<QString,int> &)));
+ connect(this, SIGNAL(clearUsers()), users, SLOT(slotClearUsers()));
+
+ convenience = new KDMConvenienceWidget(this, 0);
+ tab->addTab(convenience, i18n("Con&venience"));
+ connect(convenience, SIGNAL(changed(bool)), SIGNAL(changed(bool)));
+ connect(this, SIGNAL(addUsers(const QMap<QString,int> &)), convenience, SLOT(slotAddUsers(const QMap<QString,int> &)));
+ connect(this, SIGNAL(delUsers(const QMap<QString,int> &)), convenience, SLOT(slotDelUsers(const QMap<QString,int> &)));
+ connect(this, SIGNAL(clearUsers()), convenience, 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();
+ QMap<QString,int> lusers;
+ QMapConstIterator<QString, QPair<int,QStringList> > it;
+ QStringList::ConstIterator jt;
+ QMap<QString,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) {
+ QMap<QString,int> alusers, dlusers;
+ QMapConstIterator<QString, QPair<int,QStringList> > it;
+ QStringList::ConstIterator jt;
+ QMap<QString,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"