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	/*
	main.cpp

	This file is part of Kleopatra, the KDE keymanager
	Copyright (c) 2001,2002,2004 Klar�vdalens Datakonsult AB

	Kleopatra 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.

	Kleopatra 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

	In addition, as a special exception, the copyright holders give
	permission to link the code of this program with any edition of
	the Qt library by Trolltech AS, Norway (or with modified versions
	of Qt that use the same license as Qt), and distribute linked
	combinations including the two. You must obey the GNU General
	Public License in all respects for all of the code used other than
	Qt. If you modify this file, you may extend this exception to
	your version of the file, but you are not obligated to do so. If
	you do not wish to do so, delete this exception statement from
	your version.
	*/

	#include <config-kleopatra.h>

	#include "aboutdata.h"
	#include "systemtrayicon.h"
	#ifdef KLEO_BUILD_OLD_MAINWINDOW
	# include "certmanager.h"
	#else
	# include "mainwindow.h"
	# include "trayiconlistener.h"
	# include <commands/refreshkeyscommand.h>
	#endif

	#include "libkleo/kleo/cryptobackendfactory.h"

	#include <utils/log.h>

	#ifdef HAVE_USABLE_ASSUAN
	# include <assuan.h>
	# include <uiserver/uiserver.h>
	# include <uiserver/assuancommand.h>
	# include <uiserver/echocommand.h>
	# include <uiserver/decryptcommand.h>
	# include <uiserver/verifycommand.h>
	# include <uiserver/decryptverifyfilescommand.h>
	# include <uiserver/decryptfilescommand.h>
	# include <uiserver/verifyfilescommand.h>
	# include <uiserver/prepencryptcommand.h>
	# include <uiserver/encryptcommand.h>
	# include <uiserver/signcommand.h>
	# include <uiserver/signencryptfilescommand.h>
	#endif

	#include <models/keycache.h>

	#include <kapplication.h>
	#include <kcmdlineargs.h>
	#include <kmessagebox.h>
	#include <klocale.h>
	#include <kglobal.h>
	#include <kiconloader.h>
	#include <ksplashscreen.h>

	#include <QDebug>
	#include <QFile>
	#include <QTextDocument> // for Qt::escape
	#include <QProcess>
	#include <QSystemTrayIcon>
	#include <QMenu>
	#include <QAction>

	#include <boost/shared_ptr.hpp>

	namespace {
	template <typename T>
	boost::shared_ptr<T> make_shared_ptr( T * t ) {
	return t ? boost::shared_ptr<T>( t ) : boost::shared_ptr<T>() ;
	}
	}

	static QString environmentVariable( const QString& var )
	{
	const QStringList env = QProcess::systemEnvironment();
	Q_FOREACH ( const QString& i, env )
	{
	if ( !i.startsWith( var + '=' ) )
	continue;

	const QStringList split = i.split( '=' );
	if ( split.count() < 2 )
	continue;
	return split[1];
	}
	return QString();
	}

	static void setupLogging()
	{
	const QString dir = environmentVariable( "KLEOPATRA_LOGDIR" );
	if ( dir.isEmpty() )
	return;
	std::auto_ptr<QFile> logFile( new QFile( dir + "/kleo-log" ) );
	if ( !logFile->open( QIODevice::WriteOnly \| QIODevice::Append ) ) {
	qDebug() << "Could not open file for logging: " << dir + "/kleo-log\nLogging disabled";
	return;
	}
	Kleo::Log::mutableInstance()->setOutputDirectory( dir );
	Kleo::Log::mutableInstance()->setIOLoggingEnabled( true );
	qInstallMsgHandler( Kleo::Log::messageHandler );
	assuan_set_assuan_log_stream( Kleo::Log::instance()->logFile() );
	}

	#ifndef KLEO_BUILD_OLD_MAINWINDOW
	static void fillKeyCache( KSplashScreen * splash ) {

	QEventLoop loop;
	Kleo::RefreshKeysCommand * cmd = new Kleo::RefreshKeysCommand( Kleo::RefreshKeysCommand::Normal, 0 );
	QObject::connect( cmd, SIGNAL(finished()), &loop, SLOT(quit()) );
	splash->showMessage( i18n("Loading certificate cache...") );
	cmd->start();
	loop.exec();
	splash->showMessage( i18n("Certificate cache loaded.") );
	}
	#endif

	int main( int argc, char** argv )
	{
	AboutData aboutData;

	KCmdLineArgs::init(argc, argv, &aboutData);

	KCmdLineOptions options;
	#ifdef KLEO_BUILD_OLD_MAINWINDOW
	options.add("external", ki18n("Search for external certificates initially"));
	options.add("query ", ki18n("Initial query string"));
	#else
	options.add("daemon", ki18n("Run UI server only, hide main window"));
	#endif
	options.add("import-certificate ", ki18n("Name of certificate file to import"));
	#ifdef HAVE_USABLE_ASSUAN
	options.add("uiserver-socket <argument>", ki18n("Location of the socket the ui server is listening on" ) );
	#endif
	KCmdLineArgs::addCmdLineOptions( options );

	// pin KeyCache to a shared_ptr to define it's minimum lifetime:
	const boost::shared_ptr<Kleo::PublicKeyCache> publicKeyCache = Kleo::PublicKeyCache::mutableInstance();
	const boost::shared_ptr<Kleo::SecretKeyCache> secretKeyCache = Kleo::SecretKeyCache::mutableInstance();

	const boost::shared_ptr<Kleo::Log> log = Kleo::Log::mutableInstance();

	setupLogging();

	KApplication app;

	KCmdLineArgs *args = KCmdLineArgs::parsedArgs();

	KGlobal::locale()->insertCatalog( "libkleopatra" );
	KIconLoader::global()->addAppDir( "libkleopatra" );

	SystemTrayIcon sysTray;
	sysTray.show();

	KSplashScreen splash( UserIcon( "kleopatra_splashscreen" ), Qt::WindowStaysOnTopHint );

	#ifdef KLEO_BUILD_OLD_MAINWINDOW
	if( !Kleo::CryptoBackendFactory::instance()->smime() ) {
	KMessageBox::error(0,
	i18n( "<qt>The crypto plugin could not be initialized.<br />"
	"Certificate Manager will terminate now.</qt>") );
	return -2;
	}

	splash.show();

	CertManager* manager = new CertManager( args->isSet("external"),
	args->getOption("query"),
	args->getOption("import-certificate") );
	manager->show();
	splash.finish( manager );
	#else

	const bool daemon = args->isSet("daemon");

	if ( !daemon )
	splash.show();

	fillKeyCache( &splash );

	TrayIconListenerFor<MainWindow> trayIconListener( &sysTray );

	if ( !daemon ) {
	MainWindow* mainWindow = new MainWindow;
	mainWindow->show();
	trayIconListener.setMainWindow( mainWindow );
	splash.finish( mainWindow );
	}

	#endif

	int rc;
	#ifdef HAVE_USABLE_ASSUAN
	try {
	Kleo::UiServer server( args->getOption("uiserver-socket") );

	sysTray.setToolTip( i18n( "Kleopatra UI Server listening on %1", server.socketName() ) );

	#define REGISTER( Command ) server.registerCommandFactory( boost::shared_ptr<Kleo::AssuanCommandFactory>( new Kleo::GenericAssuanCommandFactory<Kleo::Command> ) )
	REGISTER( DecryptCommand );
	REGISTER( DecryptFilesCommand );
	REGISTER( DecryptVerifyFilesCommand );
	REGISTER( EchoCommand );
	REGISTER( EncryptCommand );
	REGISTER( EncryptFilesCommand );
	REGISTER( EncryptSignFilesCommand );
	REGISTER( PrepEncryptCommand );
	REGISTER( SignCommand );
	REGISTER( SignEncryptFilesCommand );
	REGISTER( SignFilesCommand );
	REGISTER( VerifyCommand );
	REGISTER( VerifyFilesCommand );
	#undef REGISTER

	server.start();
	#endif

	args->clear();
	QApplication::setQuitOnLastWindowClosed( false );
	rc = app.exec();

	#ifdef HAVE_USABLE_ASSUAN
	server.stop();
	server.waitForStopped();
	} catch ( const std::exception & e ) {
	QMessageBox::information( 0, i18n("GPG UI Server Error"),
	i18n("<qt>The Kleopatra GPG UI Server Module couldn't be initialized.<br/>"
	"The error given was: <b>%1</b><br/>"
	"You can use Kleopatra as a certificate manager, but cryptographic plugins that "
	"rely on a GPG UI Server being present might not work correctly, or at all.</qt>",
	Qt::escape( QString::fromUtf8( e.what() ) ) ));
	rc = app.exec();
	}
	#endif

	return rc;
	}

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