path: root/src/ldap.cpp

/***************************************************************************
 *   Copyright (C) 2012 by Timothy Pearson                                 *
 *   kb9vqf@pearsoncomputing.net                                           *
 *                                                                         *
 *   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.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#include <tqlayout.h>

#include <klocale.h>
#include <kglobal.h>
#include <kcombobox.h>
#include <kparts/genericfactory.h>
#include <ksimpleconfig.h>
#include <kglobalsettings.h>
#include <kstandarddirs.h>
#include <kurlrequester.h>
#include <klistview.h>
#include <kopenwith.h>
#include <kpropertiesdialog.h>
#include <kio/job.h>
#include <tqdir.h>
#include <tqheader.h>
#include <knuminput.h>
#include <kpassdlg.h>
#include <klineedit.h>
#include <kmessagebox.h>

#include "ldap.h"
#include "bondwizard.h"
#include "ldappasswddlg.h"
#include "realmpropertiesdialog.h"

// FIXME
// Connect this to CMake/Automake
#define KDE_CONFDIR "/etc/trinity"
#define KRB5_FILE "/etc/krb5.conf"

typedef KGenericFactory<LDAPConfig, TQWidget> ldapFactory;

K_EXPORT_COMPONENT_FACTORY( kcm_ldap, ldapFactory("kcmldap"))

KSimpleConfig *systemconfig = 0;

LDAPConfig::LDAPConfig(TQWidget *parent, const char *name, const TQStringList&)
    : KCModule(parent, name), myAboutData(0)
{
	TQVBoxLayout *layout = new TQVBoxLayout(this, KDialog::marginHint(), KDialog::spacingHint());
	systemconfig = new KSimpleConfig( TQString::fromLatin1( KDE_CONFDIR "/ldap/ldapconfigrc" ));

	KAboutData* about = new KAboutData("ldap", I18N_NOOP("TDE LDAP Manager"), "0.1",
		I18N_NOOP("TDE LDAP Manager Control Panel Module"),
		KAboutData::License_GPL,
		I18N_NOOP("(c) 2012 Timothy Pearson"), 0, 0);
	
	about->addAuthor("Timothy Pearson", 0, "kb9vqf@pearsoncomputing.net");
	setAboutData( about );

	base = new LDAPConfigBase(this);
	layout->add(base);
	base->ldapRealmList->setAllColumnsShowFocus(true);
	base->ldapRealmList->setFullWidth(true);
	
	setRootOnlyMsg(i18n("<b>Bonded LDAP realms take effect system wide, and require administrator access to modify</b><br>To alter the system's bonded LDAP realms, click on the \"Administrator Mode\" button below."));
	setUseRootOnlyMsg(true);

	connect(base->systemEnableSupport, TQT_SIGNAL(clicked()), this, TQT_SLOT(changed()));
	connect(base->defaultRealm, TQT_SIGNAL(activated(int)), this, TQT_SLOT(changed()));
	connect(base->ticketLifetime, TQT_SIGNAL(valueChanged(int)), this, TQT_SLOT(changed()));
	connect(base->systemEnableSupport, TQT_SIGNAL(clicked()), this, TQT_SLOT(processLockouts()));
	connect(base->ldapRealmList, TQT_SIGNAL(selectionChanged()), this, TQT_SLOT(processLockouts()));

	connect(base->btnBondRealm, TQT_SIGNAL(clicked()), this, TQT_SLOT(bondToNewRealm()));
	connect(base->btnReBondRealm, TQT_SIGNAL(clicked()), this, TQT_SLOT(reBondToRealm()));
	connect(base->btnRemoveRealm, TQT_SIGNAL(clicked()), this, TQT_SLOT(removeRealm()));
	connect(base->btnDeactivateRealm, TQT_SIGNAL(clicked()), this, TQT_SLOT(deactivateRealm()));
	connect(base->btnRealmProperties, TQT_SIGNAL(clicked()), this, TQT_SLOT(realmProperties()));

	load();

	if (getuid() != 0 || !systemconfig->checkConfigFilesWritable( true )) {
		base->systemEnableSupport->setEnabled(false);
	}

	processLockouts();
};

LDAPConfig::~LDAPConfig() {
	delete systemconfig;
}

void LDAPConfig::load() {
	kgs = new KGlobalSettings();

	load(false);
}

void LDAPConfig::load(bool useDefaults )
{
	//Update the toggle buttons with the current configuration
	systemconfig->setReadDefaults( useDefaults );
	
	systemconfig->setGroup(NULL);
	base->systemEnableSupport->setChecked(systemconfig->readBoolEntry("EnableLDAP", false));
	m_defaultRealm = systemconfig->readEntry("DefaultRealm", TQString::null);
	m_ticketLifetime = systemconfig->readNumEntry("TicketLifetime", 86400);
	
	// Load realms
	m_realms.clear();
	TQStringList cfgRealms = systemconfig->groupList();
	for (TQStringList::Iterator it(cfgRealms.begin()); it != cfgRealms.end(); ++it) {
		if ((*it).startsWith("LDAPRealm-")) {
			systemconfig->setGroup(*it);
			TQString realmName=*it;
			realmName.remove(0,strlen("LDAPRealm-"));
			if (!m_realms.contains(realmName)) {
				// Read in realm data
				LDAPRealmConfig realmcfg;
				realmcfg.name = realmName;
				realmcfg.bonded = systemconfig->readBoolEntry("bonded");
				realmcfg.uid_offset = systemconfig->readNumEntry("uid_offset");
				realmcfg.gid_offset = systemconfig->readNumEntry("gid_offset");
				realmcfg.domain_mappings = systemconfig->readListEntry("domain_mappings");
				realmcfg.kdc = systemconfig->readEntry("kdc");
				realmcfg.kdc_port = systemconfig->readNumEntry("kdc_port");
				realmcfg.admin_server = systemconfig->readEntry("admin_server");
				realmcfg.admin_server_port = systemconfig->readNumEntry("admin_server_port");
				realmcfg.pkinit_require_eku = systemconfig->readBoolEntry("pkinit_require_eku");
				realmcfg.pkinit_require_krbtgt_otherName = systemconfig->readBoolEntry("pkinit_require_krbtgt_otherName");
				realmcfg.win2k_pkinit = systemconfig->readBoolEntry("win2k_pkinit");
				realmcfg.win2k_pkinit_require_binding = systemconfig->readBoolEntry("win2k_pkinit_require_binding");
				// Add realm to list
				m_realms.insert(realmName, realmcfg);
			}
		}
	}

	base->ticketLifetime->setValue(m_ticketLifetime);
	updateRealmList();

	processLockouts();
	
	emit changed(useDefaults);
}

void LDAPConfig::updateRealmList() {
	base->ldapRealmList->clear();
	base->defaultRealm->clear();
	LDAPRealmConfigList::Iterator it;
	for (it = m_realms.begin(); it != m_realms.end(); ++it) {
		LDAPRealmConfig realmcfg = it.data();
		(void)new TQListViewItem(base->ldapRealmList, ((realmcfg.bonded)?i18n("Bonded"):i18n("Deactivated")), realmcfg.name);
		base->defaultRealm->insertItem(realmcfg.name);
	}
	if (m_defaultRealm != "") {
		for (int i=0; i<base->defaultRealm->count(); i++) {
			if (base->defaultRealm->text(i) == m_defaultRealm) {
				base->defaultRealm->setCurrentItem(i);
				break;
			}
		}
	}
	processLockouts();
}

void LDAPConfig::defaults() {
	
}

void LDAPConfig::save() {
	// Write system configuration
	systemconfig->setGroup(NULL);
	systemconfig->writeEntry("EnableLDAP", base->systemEnableSupport->isChecked());
	m_defaultRealm = base->defaultRealm->currentText();
	m_ticketLifetime = base->ticketLifetime->value();
	if (m_defaultRealm != "") {
		systemconfig->writeEntry("DefaultRealm", m_defaultRealm);
	}
	else {
		systemconfig->deleteEntry("DefaultRealm");
	}
	systemconfig->writeEntry("TicketLifetime", m_ticketLifetime);

	LDAPRealmConfigList::Iterator it;
	for (it = m_realms.begin(); it != m_realms.end(); ++it) {
		LDAPRealmConfig realmcfg = it.data();
		TQString configRealmName = realmcfg.name;
		configRealmName.prepend("LDAPRealm-");
		systemconfig->setGroup(configRealmName);
		// Save realm settings
		systemconfig->writeEntry("bonded", realmcfg.bonded);
		systemconfig->writeEntry("uid_offset", realmcfg.uid_offset);
		systemconfig->writeEntry("gid_offset", realmcfg.gid_offset);
		systemconfig->writeEntry("domain_mappings", realmcfg.domain_mappings);
		systemconfig->writeEntry("kdc", realmcfg.kdc);
		systemconfig->writeEntry("kdc_port", realmcfg.kdc_port);
		systemconfig->writeEntry("admin_server", realmcfg.admin_server);
		systemconfig->writeEntry("admin_server_port", realmcfg.admin_server_port);
		systemconfig->writeEntry("pkinit_require_eku", realmcfg.pkinit_require_eku);
		systemconfig->writeEntry("pkinit_require_krbtgt_otherName", realmcfg.pkinit_require_krbtgt_otherName);
		systemconfig->writeEntry("win2k_pkinit", realmcfg.win2k_pkinit);
		systemconfig->writeEntry("win2k_pkinit_require_binding", realmcfg.win2k_pkinit_require_binding);
	}

	// Delete any realms that do not exist in the m_realms database
	TQStringList cfgRealms = systemconfig->groupList();
	for (TQStringList::Iterator it(cfgRealms.begin()); it != cfgRealms.end(); ++it) {
		if ((*it).startsWith("LDAPRealm-")) {
			systemconfig->setGroup(*it);
			TQString realmName=*it;
			realmName.remove(0,strlen("LDAPRealm-"));
			if (!m_realms.contains(realmName)) {
				systemconfig->deleteGroup(*it);
			}
		}
	}

	systemconfig->sync();

	// Write the Kerberos5 configuration file
	writeKrb5ConfFile();

	load();
}

void LDAPConfig::processLockouts() {
	bool panelIsEnabled = base->systemEnableSupport->isChecked();

	base->groupRealms->setEnabled(panelIsEnabled);

	TQListViewItem *selrealm = base->ldapRealmList->selectedItem();
	if (selrealm) {
		LDAPRealmConfig realmcfg = m_realms[selrealm->text(1)];
		base->btnBondRealm->setEnabled(true);
		base->btnReBondRealm->setEnabled(true);
		if (realmcfg.bonded) {
			base->btnDeactivateRealm->setEnabled(true);
			base->btnRemoveRealm->setEnabled(false);
			base->btnRealmProperties->setEnabled(false);
		}
		else {
			base->btnDeactivateRealm->setEnabled(false);
			base->btnRemoveRealm->setEnabled(true);
			base->btnRealmProperties->setEnabled(true);
		}
	}
	else {
		base->btnBondRealm->setEnabled(true);
		base->btnReBondRealm->setEnabled(false);
		base->btnDeactivateRealm->setEnabled(false);
		base->btnRemoveRealm->setEnabled(false);
		base->btnRealmProperties->setEnabled(false);
	}
}

void LDAPConfig::bondToNewRealm() {
	// RAJA FIXME

	// Something will probably change
	save();

	BondWizard bondwizard(&m_realms, this, this);
	bondwizard.exec();

	// Something probably changed
	load();
}

void LDAPConfig::reBondToRealm() {
	TQListViewItem *selrealm = base->ldapRealmList->selectedItem();
	if (selrealm) {
		TQString realmName = selrealm->text(1);
		LDAPRealmConfig realmcfg = m_realms[realmName];
		if (realmcfg.bonded == false) {
			// Password prompt...
			TQString errorString;
			LDAPPasswordDialog passdlg(this);
			if (passdlg.exec() == TQDialog::Accepted) {
				if (bondRealm(m_realms[realmName], passdlg.m_base->ldapAdminUsername->text(), passdlg.m_base->ldapAdminPassword->password(), passdlg.m_base->ldapAdminRealm->text(), &errorString) == 0) {
					// Success!
					realmcfg.bonded = true;
					m_realms.remove(realmName);
					m_realms.insert(realmName, realmcfg);
					save();
				}
				else {
					KMessageBox::error(this, i18n("<qt><b>Unable to bond to realm!</b><p>%1</qt>").arg(errorString), i18n("Unable to Bond to Realm"));
				}
			}
		}
	}
	updateRealmList();
}

void LDAPConfig::removeRealm() {
	TQListViewItem *selrealm = base->ldapRealmList->selectedItem();
	if (selrealm) {
		m_realms.remove(selrealm->text(1));
		updateRealmList();
		changed();
	}
}

void LDAPConfig::deactivateRealm() {
	TQListViewItem *selrealm = base->ldapRealmList->selectedItem();
	if (selrealm) {
		TQString realmName = selrealm->text(1);
		LDAPRealmConfig realmcfg = m_realms[realmName];
		if (realmcfg.bonded == true) {
			// Password prompt...
			TQString errorString;
			LDAPPasswordDialog passdlg(this);
			passdlg.m_base->passprompt->setText(i18n("Please provide LDAP realm administrator credentials below to complete the unbonding process"));
			if (passdlg.exec() == TQDialog::Accepted) {
				if (unbondRealm(m_realms[realmName], passdlg.m_base->ldapAdminUsername->text(), passdlg.m_base->ldapAdminPassword->password(), passdlg.m_base->ldapAdminRealm->text(), &errorString) == 0) {
					// Success!
					realmcfg.bonded = false;
					m_realms.remove(realmName);
					m_realms.insert(realmName, realmcfg);
					save();
				}
				else {
					KMessageBox::error(this, i18n("<qt><b>Unable to unbond from realm!</b><p>%1</qt>").arg(errorString), i18n("Unable to Unbond from Realm"));
				}
			}
		}
	}
	updateRealmList();
}

int LDAPConfig::bondRealm(LDAPRealmConfig realmcfg, TQString adminUserName, const char * adminPassword, TQString adminRealm, TQString *errstr) {
	// RAJA FIXME
	return 1;	// Failure
}

int LDAPConfig::unbondRealm(LDAPRealmConfig realmcfg, TQString adminUserName, const char * adminPassword, TQString adminRealm, TQString *errstr) {
	// RAJA FIXME
	return 1;	// Failure
}

void LDAPConfig::realmProperties() {
	TQListViewItem *selrealm = base->ldapRealmList->selectedItem();
	if (selrealm) {
		RealmPropertiesDialog rpdialog(&m_realms, selrealm->text(1), this);
		if (rpdialog.exec() == TQDialog::Accepted) {
			updateRealmList();
			changed();
		}
	}
}

void LDAPConfig::writeKrb5ConfFile() {
	TQFile file(KRB5_FILE);
	if (file.open(IO_WriteOnly)) {
		TQTextStream stream( &file );

		stream << "# This file was automatically generated by TDE\n";
		stream << "# All changes will be lost!\n";
		stream << "\n";

		// Defaults
		// FIXME
		// These should be configurable!
		stream << "[libdefaults]\n";
		stream << "    ticket_lifetime = " << m_ticketLifetime << "\n";
		if (m_defaultRealm != "") {
			stream << "    default_realm = " << m_defaultRealm << "\n";
		}
		stream << "    default_etypes = des3-hmac-sha1 des-cbc-crc des-cbc-md5\n";
		stream << "    default_etypes_des = des3-hmac-sha1 des-cbc-crc des-cbc-md5\n";
		stream << "\n";

		// Realms
		stream << "[realms]\n";
		LDAPRealmConfigList::Iterator it;
		for (it = m_realms.begin(); it != m_realms.end(); ++it) {
			LDAPRealmConfig realmcfg = it.data();
			stream << "   " << realmcfg.name << " = {\n";
			stream << "        kdc = " << realmcfg.kdc << ":" << realmcfg.kdc_port << "\n";
			stream << "        admin_server = " << realmcfg.admin_server << ":" << realmcfg.admin_server_port << "\n";
			stream << "        pkinit_require_eku = " << (realmcfg.pkinit_require_eku?"true":"false") << "\n";
			stream << "        pkinit_require_krbtgt_otherName = " << (realmcfg.pkinit_require_krbtgt_otherName?"true":"false") << "\n";
			stream << "        win2k_pkinit = " << (realmcfg.win2k_pkinit?"yes":"no") << "\n";
			stream << "        win2k_pkinit_require_binding = " << (realmcfg.win2k_pkinit_require_binding?"yes":"no") << "\n";
			stream << "   }\n";
		}
		stream << "\n";

		// Domain aliases
		stream << "[domain_realm]\n";
		LDAPRealmConfigList::Iterator it2;
		for (it2 = m_realms.begin(); it2 != m_realms.end(); ++it2) {
			LDAPRealmConfig realmcfg = it2.data();
			TQStringList domains = realmcfg.domain_mappings;
			for (TQStringList::Iterator it3 = domains.begin(); it3 != domains.end(); ++it3 ) {
				stream << "    " << *it3 << " = " << realmcfg.name << "\n";
			}
		}

		file.close();
	}
}

int LDAPConfig::buttons() {
	return KCModule::Apply|KCModule::Help;
}

TQString LDAPConfig::quickHelp() const
{
	return i18n("This module configures which LDAP realms TDE uses for authentication.");
}