/* certificateinfowidgetimpl.cpp This file is part of Kleopatra, the KDE keymanager Copyright (c) 2001,2002,2004 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 TQt library by Trolltech AS, Norway (or with modified versions of TQt that use the same license as TQt), 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 TQt. 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. */ #ifdef HAVE_CONFIG_H #include #endif #include "certificateinfowidgetimpl.h" // libkleopatra #include #include #include #include // gpgme++ #include // KDE #include #include #include #include #include #include // TQt #include #include #include #include #include #include #include #include #include // other #include CertificateInfoWidgetImpl::CertificateInfoWidgetImpl( const GpgME::Key & key, bool external, TQWidget * tqparent, const char * name ) : CertificateInfoWidget( tqparent, name ), mExternal( external ), mFoundIssuer( true ), mHaveKeyLocally( false ) { importButton->setEnabled( false ); listView->setColumnWidthMode( 1, TQListView::Maximum ); TQFontMetrics fm = fontMetrics(); listView->setColumnWidth( 1, fm.width( i18n("Information") ) * 5 ); listView->header()->setClickEnabled( false ); listView->setSorting( -1 ); connect( listView, TQT_SIGNAL( selectionChanged( TQListViewItem* ) ), this, TQT_SLOT( slotShowInfo( TQListViewItem* ) ) ); pathView->setColumnWidthMode( 0, TQListView::Maximum ); pathView->header()->hide(); connect( pathView, TQT_SIGNAL( doubleClicked( TQListViewItem* ) ), this, TQT_SLOT( slotShowCertPathDetails( TQListViewItem* ) ) ); connect( pathView, TQT_SIGNAL( returnPressed( TQListViewItem* ) ), this, TQT_SLOT( slotShowCertPathDetails( TQListViewItem* ) ) ); connect( importButton, TQT_SIGNAL( clicked() ), this, TQT_SLOT( slotImportCertificate() ) ); dumpView->setFont( KGlobalSettings::fixedFont() ); if ( !key.isNull() ) setKey( key ); } static TQString time_t2string( time_t t ) { TQDateTime dt; dt.setTime_t( t ); return dt.toString(); } void CertificateInfoWidgetImpl::setKey( const GpgME::Key & key ) { mChain.clear(); mFoundIssuer = true; mHaveKeyLocally = false; listView->clear(); pathView->clear(); importButton->setEnabled( false ); if ( key.isNull() ) return; mChain.push_front( key ); startKeyExistanceCheck(); // starts a local keylisting to enable the // importButton if needed TQListViewItem * item = 0; item = new TQListViewItem( listView, item, i18n("Valid"), TQString("From %1 to %2") .tqarg( time_t2string( key.subkey(0).creationTime() ), time_t2string( key.subkey(0).expirationTime() ) ) ); item = new TQListViewItem( listView, item, i18n("Can be used for signing"), key.canSign() ? i18n("Yes") : i18n("No") ); item = new TQListViewItem( listView, item, i18n("Can be used for encryption"), key.canEncrypt() ? i18n("Yes") : i18n("No") ); item = new TQListViewItem( listView, item, i18n("Can be used for certification"), key.canCertify() ? i18n("Yes") : i18n("No") ); item = new TQListViewItem( listView, item, i18n("Can be used for authentication"), key.canAuthenticate() ? i18n("Yes") : i18n("No" ) ); item = new TQListViewItem( listView, item, i18n("Fingerprint"), key.primaryFingerprint() ); item = new TQListViewItem( listView, item, i18n("Issuer"), Kleo::DN( key.issuerName() ).prettyDN() ); item = new TQListViewItem( listView, item, i18n("Serial Number"), key.issuerSerial() ); const Kleo::DN dn = key.userID(0).id(); // FIXME: use the attributeLabelMap from certificatewizardimpl.cpp: static TQMap dnComponentNames; if ( dnComponentNames.isEmpty() ) { dnComponentNames["C"] = i18n("Country"); dnComponentNames["OU"] = i18n("Organizational Unit"); dnComponentNames["O"] = i18n("Organization"); dnComponentNames["L"] = i18n("Location"); dnComponentNames["CN"] = i18n("Common Name"); dnComponentNames["EMAIL"] = i18n("Email"); } for ( Kleo::DN::const_iterator dnit = dn.begin() ; dnit != dn.end() ; ++dnit ) { TQString displayName = (*dnit).name(); if( dnComponentNames.tqcontains(displayName) ) displayName = dnComponentNames[displayName]; item = new TQListViewItem( listView, item, displayName, (*dnit).value() ); } const std::vector uids = key.userIDs(); if ( !uids.empty() ) { item = new TQListViewItem( listView, item, i18n("Subject"), Kleo::DN( uids.front().id() ).prettyDN() ); for ( std::vector::const_iterator it = uids.begin() + 1 ; it != uids.end() ; ++it ) { if ( !(*it).id() ) continue; const TQString email = TQString::fromUtf8( (*it).id() ).stripWhiteSpace(); if ( email.isEmpty() ) continue; if ( email.startsWith( "<" ) ) item = new TQListViewItem( listView, item, i18n("Email"), email.mid( 1, email.length()-2 ) ); else item = new TQListViewItem( listView, item, i18n("A.k.a."), email ); } } updateChainView(); startCertificateChainListing(); startCertificateDump(); } static void showChainListError( TQWidget * tqparent, const GpgME::Error & err, const char * subject ) { assert( err ); const TQString msg = i18n("

An error occurred while fetching " "the certificate %1 from the backend:

" "

%2

") .tqarg( subject ? TQString::fromUtf8( subject ) : TQString(), TQString::fromLocal8Bit( err.asString() ) ); KMessageBox::error( tqparent, msg, i18n("Certificate Listing Failed" ) ); } void CertificateInfoWidgetImpl::startCertificateChainListing() { kdDebug() << "CertificateInfoWidgetImpl::startCertificateChainListing()" << endl; if ( mChain.empty() ) { // we need a seed... kdWarning() << "CertificateInfoWidgetImpl::startCertificateChainListing(): mChain is empty!" << endl; return; } const char * chainID = mChain.front().chainID(); if ( !chainID || !*chainID ) { // cert not found: kdDebug() << "CertificateInfoWidgetImpl::startCertificateChainListing(): empty chain ID - root not found" << endl; return; } const char * fpr = mChain.front().primaryFingerprint(); if ( qstricmp( fpr, chainID ) == 0 ) { kdDebug() << "CertificateInfoWidgetImpl::startCertificateChainListing(): chain_id equals fingerprint -> found root" << endl; return; } if ( mChain.size() > 100 ) { // safe guard against certificate loops (paranoia factor 8 out of 10)... kdWarning() << "CertificateInfoWidgetImpl::startCertificateChainListing(): maximum chain length of 100 exceeded!" << endl; return; } if ( !mFoundIssuer ) { // key listing failed. Don't end up in endless loop kdDebug() << "CertificateInfoWidgetImpl::startCertificateChainListing(): issuer not found - giving up" << endl; return; } mFoundIssuer = false; // gpgsm / dirmngr / LDAP / whoever doesn't support looking up // external keys by fingerprint. Furthermore, since we actually got // a chain-id set on the key, we know that we have the issuer's cert // in the local keyring, so just use local keylisting. Kleo::KeyListJob * job = Kleo::CryptoBackendFactory::instance()->smime()->keyListJob( false ); assert( job ); connect( job, TQT_SIGNAL(result(const GpgME::KeyListResult&)), TQT_SLOT(slotCertificateChainListingResult(const GpgME::KeyListResult&)) ); connect( job, TQT_SIGNAL(nextKey(const GpgME::Key&)), TQT_SLOT(slotNextKey(const GpgME::Key&)) ); kdDebug() << "Going to fetch" << endl << " issuer : \"" << mChain.front().issuerName() << "\"" << endl << " chain id: " << mChain.front().chainID() << endl << "for" << endl << " subject : \"" << mChain.front().userID(0).id() << "\"" << endl << " subj.fpr: " << mChain.front().primaryFingerprint() << endl; const GpgME::Error err = job->start( mChain.front().chainID() ); if ( err ) showChainListError( this, err, mChain.front().issuerName() ); else (void)new Kleo::ProgressDialog( job, i18n("Fetching Certificate Chain"), this ); } void CertificateInfoWidgetImpl::startCertificateDump() { KProcess* proc = new KProcess( TQT_TQOBJECT(this) ); (*proc) << "gpgsm"; // must be in the PATH (*proc) << "--dump-keys"; (*proc) << mChain.front().primaryFingerprint(); TQObject::connect( proc, TQT_SIGNAL( receivedStdout(KProcess *, char *, int) ), this, TQT_SLOT( slotCollectStdout(KProcess *, char *, int) ) ); TQObject::connect( proc, TQT_SIGNAL( receivedStderr(KProcess *, char *, int) ), this, TQT_SLOT( slotCollectStderr(KProcess *, char *, int) ) ); TQObject::connect( proc, TQT_SIGNAL( processExited(KProcess*) ), this, TQT_SLOT( slotDumpProcessExited(KProcess*) ) ); if ( !proc->start( KProcess::NotifyOnExit, (KProcess::Communication)(KProcess::Stdout | KProcess::Stderr) ) ) { TQString wmsg = i18n("Failed to execute gpgsm:\n%1").tqarg( i18n( "program not found" ) ); dumpView->setText( TQStyleSheet::escape( wmsg ) ); delete proc; } } void CertificateInfoWidgetImpl::slotCollectStdout(KProcess *, char *buffer, int buflen) { mDumpOutput += TQCString(buffer, buflen+1); // like KProcIO does } void CertificateInfoWidgetImpl::slotCollectStderr(KProcess *, char *buffer, int buflen) { mDumpError += TQCString(buffer, buflen+1); // like KProcIO does } void CertificateInfoWidgetImpl::slotDumpProcessExited(KProcess* proc) { int rc = ( proc->normalExit() ) ? proc->exitStatus() : -1 ; if ( rc == 0 ) { dumpView->setText( TQStyleSheet::escape( TQString::fromUtf8( mDumpOutput ) ) ); } else { if ( !mDumpError.isEmpty() ) { dumpView->setText( TQStyleSheet::escape( TQString::fromUtf8( mDumpError ) ) ); } else { TQString wmsg = i18n("Failed to execute gpgsm:\n%1"); if ( rc == -1 ) wmsg = wmsg.tqarg( i18n( "program cannot be executed" ) ); else wmsg = wmsg.tqarg( strerror(rc) ); dumpView->setText( TQStyleSheet::escape( wmsg ) ); } } proc->deleteLater(); } void CertificateInfoWidgetImpl::slotNextKey( const GpgME::Key & key ) { kdDebug() << "CertificateInfoWidgetImpl::slotNextKey( \"" << key.userID(0).id() << "\" )" << endl; if ( key.isNull() ) return; mFoundIssuer = true; mChain.push_front( key ); updateChainView(); // FIXME: cancel the keylisting. We're only interested in _one_ key. } void CertificateInfoWidgetImpl::updateChainView() { pathView->clear(); if ( mChain.empty() ) return; TQListViewItem * item = 0; TQValueList::const_iterator it = mChain.begin(); // root item: if ( (*it).chainID() && qstrcmp( (*it).chainID(), (*it).primaryFingerprint() ) == 0 ) item = new TQListViewItem( pathView, Kleo::DN( (*it++).userID(0).id() ).prettyDN() ); else { item = new TQListViewItem( pathView, i18n("Issuer certificate not found ( %1)") .tqarg( Kleo::DN( (*it).issuerName() ).prettyDN() ) ); item->setOpen( true ); // TQt bug: doesn't open after setEnabled( false ) :/ item->setEnabled( false ); } item->setOpen( true ); // subsequent items: while ( it != mChain.end() ) { item = new TQListViewItem( item, Kleo::DN( (*it++).userID(0).id() ).prettyDN() ); item->setOpen( true ); } } void CertificateInfoWidgetImpl::slotCertificateChainListingResult( const GpgME::KeyListResult & res ) { if ( res.error() ) return showChainListError( this, res.error(), mChain.front().issuerName() ); else startCertificateChainListing(); } void CertificateInfoWidgetImpl::slotShowInfo( TQListViewItem * item ) { textView->setText( item->text(1) ); } void CertificateInfoWidgetImpl::slotShowCertPathDetails( TQListViewItem * item ) { if ( !item ) return; // find the key corresponding to "item". This hack would not be // necessary if pathView was a Kleo::KeyListView, but it's // TQt-Designer-generated and I don't feel like creating a custom // widget spec for Kleo::KeyListView. unsigned int totalCount = 0; int itemIndex = -1; for ( const TQListViewItem * i = pathView->firstChild() ; i ; i = i->firstChild() ) { if ( i == item ) itemIndex = totalCount; ++totalCount; } assert( totalCount == mChain.size() || totalCount == mChain.size() + 1 ); // skip pseudo root item with "not found message": if ( totalCount == mChain.size() + 1 ) --itemIndex; assert( itemIndex >= 0 ); KDialogBase * dialog = new KDialogBase( this, "dialog", false, i18n("Additional Information for Key"), KDialogBase::Close, KDialogBase::Close ); CertificateInfoWidgetImpl * top = new CertificateInfoWidgetImpl( mChain[itemIndex], mExternal, dialog ); dialog->setMainWidget( top ); // proxy the signal to our receiver: connect( top, TQT_SIGNAL(requestCertificateDownload(const TQString&, const TQString&)), TQT_SIGNAL(requestCertificateDownload(const TQString&, const TQString&)) ); dialog->show(); } void CertificateInfoWidgetImpl::slotImportCertificate() { if ( mChain.empty() || mChain.back().isNull() ) return; const Kleo::DN dn = mChain.back().userID( 0 ).id(); emit requestCertificateDownload( mChain.back().primaryFingerprint(), dn.prettyDN() ); importButton->setEnabled( false ); } void CertificateInfoWidgetImpl::startKeyExistanceCheck() { if ( !mExternal ) // we already have it if it's from a local keylisting :) return; if ( mChain.empty() || mChain.back().isNull() ) // need a key to look for return; const TQString fingerprint = mChain.back().primaryFingerprint(); if ( fingerprint.isEmpty() ) // empty pattern means list all keys. We don't want that return; // start _local_ keylistjob (no progressdialog needed here): Kleo::KeyListJob * job = Kleo::CryptoBackendFactory::instance()->smime()->keyListJob( false ); assert( job ); connect( job, TQT_SIGNAL(nextKey(const GpgME::Key&)), TQT_SLOT(slotKeyExistanceCheckNextCandidate(const GpgME::Key&)) ); connect( job, TQT_SIGNAL(result(const GpgME::KeyListResult&)), TQT_SLOT(slotKeyExistanceCheckFinished()) ); // nor to check for errors: job->start( fingerprint ); } void CertificateInfoWidgetImpl::slotKeyExistanceCheckNextCandidate( const GpgME::Key & key ) { if ( key.isNull() || mChain.empty() || !key.primaryFingerprint() ) return; if ( qstrcmp( key.primaryFingerprint(), mChain.back().primaryFingerprint() ) == 0 ) mHaveKeyLocally = true; } void CertificateInfoWidgetImpl::slotKeyExistanceCheckFinished() { importButton->setEnabled( !mHaveKeyLocally ); } #include "certificateinfowidgetimpl.moc"