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	/*
	kleopatraapplication.cpp

	This file is part of Kleopatra, the KDE keymanager
	Copyright (c) 2008 Klarälvdalens 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 "kleopatraapplication.h"

	#include "mainwindow.h"
	#include "systrayicon.h"

	#include <smartcard/readerstatus.h>

	#include <utils/gnupg-helper.h>
	#include <utils/filesystemwatcher.h>
	#include <utils/kdpipeiodevice.h>
	#include <utils/log.h>
	#include <utils/getpid.h>

	#include <models/keycache.h>

	#ifdef HAVE_USABLE_ASSUAN
	# include <uiserver/uiserver.h>
	#endif

	#include <commands/signencryptfilescommand.h>
	#include <commands/decryptverifyfilescommand.h>

	#include <KGlobal>
	#include <KIconLoader>
	#include <KLocale>
	#include <KCmdLineOptions>
	#include <KDebug>
	#include <KUrl>

	#include <QFile>
	#include <QDir>

	#include <boost/shared_ptr.hpp>
	#include <boost/range.hpp>
	#include <boost/bind.hpp>
	#include <boost/mem_fn.hpp>

	#include <memory>

	using namespace Kleo;
	using namespace Kleo::Commands;
	using namespace boost;

	static void add_resources() {
	KGlobal::locale()->insertCatalog( "libkleopatra" );
	KIconLoader::global()->addAppDir( "libkleopatra" );
	KIconLoader::global()->addAppDir( "kwatchgnupg" );
	KIconLoader::global()->addAppDir( "kdepim" );
	}

	static const struct {
	const char * option;
	const char * description;
	char short_option[4];
	} kleo_options[] = {
	{ "daemon", I18N_NOOP("Run UI server only, hide main window"), "" },
	{ "openpgp", I18N_NOOP("Use OpenPGP for the following operation"), "p" },
	{ "cms", I18N_NOOP("Use CMS (X.509, S/MIME) for the following operation"), "c" },
	{ "import-certificate", I18N_NOOP("Import certificate file(s)"), "i" },
	{ "encrypt", I18N_NOOP("Encrypt file(s)"), "e" },
	{ "sign", I18N_NOOP("Sign file(s)"), "s" },
	{ "encrypt-sign", I18N_NOOP("Encrypt and/or sign file(s)"), "E" },
	{ "decrypt", I18N_NOOP("Decrypt file(s)"), "d" },
	{ "verify", I18N_NOOP("Verify file/signature"), "V" },
	{ "decrypt-verify", I18N_NOOP("Decrypt and/or verify file(s)"), "D" },
	//{ "show-certificate", I18N_NOOP("Show Certificate(s) by fingerprint(s)"), "" },
	};


	static KCmdLineOptions make_kleopatra_args() {
	KCmdLineOptions options;
	#ifdef HAVE_USABLE_ASSUAN
	options.add("uiserver-socket <argument>", ki18n("Location of the socket the ui server is listening on" ));
	#endif
	for ( unsigned int i = 0 ; i < sizeof kleo_options / sizeof *kleo_options ; ++i ) {
	if ( *kleo_options[i].short_option )
	options.add( kleo_options[i].short_option );
	options.add( kleo_options[i].option, ki18n( kleo_options[i].description ) );
	}
	options.add("+[File]", ki18n("File(s) to process"));
	return options;
	}

	// static
	KCmdLineOptions KleopatraApplication::commandLineOptions() {
	static KCmdLineOptions options = make_kleopatra_args();
	return options;
	}

	static QList<QByteArray> default_logging_options() {
	QList<QByteArray> result;
	result.push_back( "io" );
	return result;
	}

	class KleopatraApplication::Private {
	public:
	Private()
	: ignoreNewInstance( true )
	{
	KDAB_SET_OBJECT_NAME( readerStatus );
	KDAB_SET_OBJECT_NAME( sysTray );

	sysTray.setAnyCardHasNullPin( readerStatus.anyCardHasNullPin() );
	sysTray.setAnyCardCanLearnKeys( readerStatus.anyCardCanLearnKeys() );

	connect( &readerStatus, SIGNAL(anyCardHasNullPinChanged(bool)),
	&sysTray, SLOT(setAnyCardHasNullPin(bool)) );
	connect( &readerStatus, SIGNAL(anyCardCanLearnKeysChanged(bool)),
	&sysTray, SLOT(setAnyCardCanLearnKeys(bool)) );
	}

	public:
	bool ignoreNewInstance;
	SmartCard::ReaderStatus readerStatus;
	SysTrayIcon sysTray;
	shared_ptr<KeyCache> keyCache;
	shared_ptr<Log> log;
	shared_ptr<FileSystemWatcher> watcher;

	public:
	void setupKeyCache() {
	keyCache = KeyCache::mutableInstance();
	watcher.reset( new FileSystemWatcher );

	watcher->blacklistFiles( gnupgFileBlacklist() );
	watcher->addPath( gnupgHomeDirectory() );
	watcher->setDelay( 1000 );
	keyCache->addFileSystemWatcher( watcher );
	}

	void setupLogging() {
	log = Log::mutableInstance();

	const QByteArray envOptions = qgetenv( "KLEOPATRA_LOGOPTIONS" );
	const bool logAll = envOptions.trimmed() == "all";
	const QList<QByteArray> options = envOptions.isEmpty() ? default_logging_options() : envOptions.split( ',' ) ;

	const QByteArray dirNative = qgetenv( "KLEOPATRA_LOGDIR" );
	if ( dirNative.isEmpty() )
	return;
	const QString dir = QFile::decodeName( dirNative );
	const QString logFileName = QDir( dir ).absoluteFilePath( QString::fromLatin1( "kleopatra.log.%1" ).arg( mygetpid() ) );
	std::auto_ptr<QFile> logFile( new QFile( logFileName ) );
	if ( !logFile->open( QIODevice::WriteOnly \| QIODevice::Append ) ) {
	kDebug() << "Could not open file for logging: " << logFileName << "\nLogging disabled";
	return;
	}

	log->setOutputDirectory( dir );
	if ( logAll \|\| options.contains( "io" ) )
	log->setIOLoggingEnabled( true );
	qInstallMsgHandler( Log::messageHandler );

	#ifdef HAVE_USABLE_ASSUAN
	if ( logAll \|\| options.contains( "pipeio" ) )
	KDPipeIODevice::setDebugLevel( KDPipeIODevice::Debug );
	UiServer::setLogStream( log->logFile() );
	#endif

	}
	};


	KleopatraApplication::KleopatraApplication()
	: KUniqueApplication(), d( new Private )
	{
	add_resources();
	d->setupKeyCache();
	d->setupLogging();
	d->sysTray.show();
	setQuitOnLastWindowClosed( false );
	}

	KleopatraApplication::~KleopatraApplication() {
	// work around kdelibs bug https://bugs.kde.org/show_bug.cgi?id=162514
	KGlobal::config()->sync();
	}

	static QStringList files_from_args( const shared_ptr<const KCmdLineArgs> & args ) {
	QStringList result;
	for ( int i = 0, end = args->count() ; i < end ; ++i ) {
	const KUrl url = args->url(i);
	if ( url.protocol() == QLatin1String("file") )
	result.push_back( url.toLocalFile() );
	}
	return result;
	}

	namespace {
	typedef void (KleopatraApplication::*Func)( const QStringList &, GpgME::Protocol );
	struct _Funcs {
	const char * opt;
	Func func;
	};
	}

	int KleopatraApplication::newInstance() {
	kDebug() << "ignoreNewInstance =" << d->ignoreNewInstance;
	if ( d->ignoreNewInstance )
	return 0;

	const shared_ptr<KCmdLineArgs> args( KCmdLineArgs::parsedArgs(), mem_fn( &KCmdLineArgs::clear ) );

	const QStringList files = files_from_args( args );

	const bool openpgp = args->isSet( "openpgp" );
	const bool cms = args->isSet( "cms" );

	kDebug( openpgp ) << "found OpenPGP";
	kDebug( cms ) << "found CMS";

	if ( openpgp && cms ) {
	kDebug() << "ambigious protocol: --openpgp and --cms";
	return 1;
	}

	static const _Funcs funcs[] = {
	{ "import-certificate", &KleopatraApplication::importCertificatesFromFile },
	{ "encrypt", &KleopatraApplication::encryptFiles },
	{ "sign", &KleopatraApplication::signFiles },
	{ "encrypt-sign", &KleopatraApplication::signEncryptFiles },
	{ "decrypt", &KleopatraApplication::decryptFiles },
	{ "verify", &KleopatraApplication::verifyFiles },
	{ "decrypt-verify", &KleopatraApplication::decryptVerifyFiles },
	};

	const _Funcs * const it1 = std::find_if( begin( funcs ), end( funcs ),
	bind( &KCmdLineArgs::isSet, args, bind( &_Funcs::opt, _1 ) ) );

	if ( const Func func = it1 == end( funcs ) ? 0 : it1->func ) {
	const _Funcs * it2 = std::find_if( it1+1, end( funcs ),
	bind( &KCmdLineArgs::isSet, args, bind( &_Funcs::opt, _1 ) ) );
	if ( it2 != end( funcs ) ) {
	kDebug() << "ambiguous command" << it1->opt << "vs." << it2->opt;
	return 1;
	}
	if ( files.empty() ) {
	kDebug() << it1->opt << "without arguments";
	return 1;
	}
	kDebug() << "found" << it1->opt;
	(this->*func)( files, openpgp ? GpgME::OpenPGP : cms ? GpgME::CMS : GpgME::UnknownProtocol );
	} else {
	if ( files.empty() ) {
	kDebug() << "openOrRaiseMainWindow";
	openOrRaiseMainWindow();
	} else {
	kDebug() << "files without command"; // possible?
	return 1;
	}
	}

	return 0;
	}

	const SysTrayIcon * KleopatraApplication::sysTrayIcon() const {
	return &d->sysTray;
	}

	SysTrayIcon * KleopatraApplication::sysTrayIcon() {
	return &d->sysTray;
	}

	const MainWindow * KleopatraApplication::mainWindow() const {
	return d->sysTray.mainWindow();
	}

	MainWindow * KleopatraApplication::mainWindow() {
	return d->sysTray.mainWindow();
	}

	void KleopatraApplication::openOrRaiseMainWindow() {
	d->sysTray.openOrRaiseMainWindow();
	}

	void KleopatraApplication::openOrRaiseConfigDialog() {
	d->sysTray.openOrRaiseConfigDialog();
	}

	void KleopatraApplication::importCertificatesFromFile( const QStringList & files, GpgME::Protocol /proto/) {
	openOrRaiseMainWindow();
	if ( !files.empty() )
	d->sysTray.mainWindow()->importCertificatesFromFile( files );
	}

	void KleopatraApplication::encryptFiles( const QStringList & files, GpgME::Protocol proto ) {
	SignEncryptFilesCommand * const cmd = new SignEncryptFilesCommand( files, 0 );
	cmd->setEncryptionPolicy( Force );
	cmd->setSigningPolicy( Allow );
	if ( proto != GpgME::UnknownProtocol )
	cmd->setProtocol( proto );
	cmd->start();
	}

	void KleopatraApplication::signFiles( const QStringList & files, GpgME::Protocol proto ) {
	SignEncryptFilesCommand * const cmd = new SignEncryptFilesCommand( files, 0 );
	cmd->setSigningPolicy( Force );
	cmd->setEncryptionPolicy( Deny );
	if ( proto != GpgME::UnknownProtocol )
	cmd->setProtocol( proto );
	cmd->start();
	}

	void KleopatraApplication::signEncryptFiles( const QStringList & files, GpgME::Protocol proto ) {
	SignEncryptFilesCommand * const cmd = new SignEncryptFilesCommand( files, 0 );
	if ( proto != GpgME::UnknownProtocol )
	cmd->setProtocol( proto );
	cmd->start();
	}

	void KleopatraApplication::decryptFiles( const QStringList & files, GpgME::Protocol /proto/ ) {
	DecryptVerifyFilesCommand * const cmd = new DecryptVerifyFilesCommand( files, 0 );
	cmd->setOperation( Decrypt );
	cmd->start();
	}

	void KleopatraApplication::verifyFiles( const QStringList & files, GpgME::Protocol /proto/ ) {
	DecryptVerifyFilesCommand * const cmd = new DecryptVerifyFilesCommand( files, 0 );
	cmd->setOperation( Verify );
	cmd->start();
	}

	void KleopatraApplication::decryptVerifyFiles( const QStringList & files, GpgME::Protocol /proto/ ) {
	DecryptVerifyFilesCommand * const cmd = new DecryptVerifyFilesCommand( files, 0 );
	cmd->start();
	}

	void KleopatraApplication::setIgnoreNewInstance( bool ignore ) {
	d->ignoreNewInstance = ignore;
	}

	bool KleopatraApplication::ignoreNewInstance() const {
	return d->ignoreNewInstance;
	}

	#include "moc_kleopatraapplication.cpp"

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