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newsignencryptemailcontroller.cpp
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/* -*- mode: c++; c-basic-offset:4 -*-
crypto/newsignencryptemailcontroller.cpp
This file is part of Kleopatra, the KDE keymanager
Copyright (c) 2007 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 "newsignencryptemailcontroller.h"
#include "encryptemailtask.h"
#include "signemailtask.h"
#include "taskcollection.h"
#include "sender.h"
#include "recipient.h"
#include <crypto/gui/signencryptemailconflictdialog.h>
#include <utils/input.h>
#include <utils/output.h>
#include <utils/stl_util.h>
#include <utils/kleo_assert.h>
#include <utils/exception.h>
#include "emailoperationspreferences.h"
#include <gpgme++/key.h>
#include <kmime/kmime_header_parsing.h>
#include <KLocale>
#include <KDebug>
#include <KMessageBox>
#include <QPointer>
#include <QTimer>
#include <boost/bind.hpp>
#include <boost/shared_ptr.hpp>
using namespace Kleo;
using namespace Kleo::Crypto;
using namespace Kleo::Crypto::Gui;
using namespace boost;
using namespace GpgME;
using namespace KMime::Types;
static std::vector<Sender> mailbox2sender( const std::vector<Mailbox> & mbs ) {
std::vector<Sender> senders;
senders.reserve( mbs.size() );
Q_FOREACH( const Mailbox & mb, mbs )
senders.push_back( Sender( mb ) );
return senders;
}
static std::vector<Recipient> mailbox2recipient( const std::vector<Mailbox> & mbs ) {
std::vector<Recipient> recipients;
recipients.reserve( mbs.size() );
Q_FOREACH( const Mailbox & mb, mbs )
recipients.push_back( Recipient( mb ) );
return recipients;
}
class NewSignEncryptEMailController::Private {
friend class ::Kleo::Crypto::NewSignEncryptEMailController;
NewSignEncryptEMailController * const q;
public:
explicit Private( NewSignEncryptEMailController * qq );
~Private();
private:
void slotDialogAccepted();
void slotDialogRejected();
private:
void ensureDialogVisible();
void cancelAllTasks();
void startSigning();
void startEncryption();
void schedule();
shared_ptr<Task> takeRunnable( GpgME::Protocol proto );
private:
bool sign : 1;
bool encrypt : 1;
bool resolvingInProgress : 1;
bool certificatesResolved : 1;
bool detached : 1;
std::vector<Key> signers, recipients;
std::vector< shared_ptr<Task> > runnable, completed;
shared_ptr<Task> cms, openpgp;
QPointer<SignEncryptEMailConflictDialog> dialog;
};
NewSignEncryptEMailController::Private::Private( NewSignEncryptEMailController * qq )
: q( qq ),
sign( false ),
encrypt( false ),
resolvingInProgress( false ),
certificatesResolved( false ),
detached( false ),
signers(),
recipients(),
runnable(),
cms(),
openpgp(),
dialog( new SignEncryptEMailConflictDialog )
{
connect( dialog, SIGNAL(accepted()), q, SLOT(slotDialogAccepted()) );
connect( dialog, SIGNAL(rejected()), q, SLOT(slotDialogRejected()) );
}
NewSignEncryptEMailController::Private::~Private() {
delete dialog;
}
NewSignEncryptEMailController::NewSignEncryptEMailController( const shared_ptr<ExecutionContext> & xc, QObject * p )
: Controller( xc, p ), d( new Private( this ) )
{
}
NewSignEncryptEMailController::NewSignEncryptEMailController( QObject * p )
: Controller( p ), d( new Private( this ) )
{
}
NewSignEncryptEMailController::~NewSignEncryptEMailController() { kDebug(); }
void NewSignEncryptEMailController::setSubject( const QString & subject ) {
d->dialog->setSubject( subject );
}
void NewSignEncryptEMailController::setProtocol( Protocol proto ) {
d->dialog->setPresetProtocol( proto );
}
Protocol NewSignEncryptEMailController::protocol() const {
return d->dialog->selectedProtocol();
}
const char * NewSignEncryptEMailController::protocolAsString() const {
switch ( protocol() ) {
case OpenPGP: return "OpenPGP";
case CMS: return "CMS";
default:
throw Kleo::Exception( gpg_error( GPG_ERR_INTERNAL ),
i18n("Call to NewSignEncryptEMailController::protocolAsString() is ambiguous.") );
}
}
void NewSignEncryptEMailController::setSigning( bool sign ) {
d->sign = sign;
d->dialog->setSign( sign );
}
bool NewSignEncryptEMailController::isSigning() const {
return d->sign;
}
void NewSignEncryptEMailController::setEncrypting( bool encrypt ) {
d->encrypt = encrypt;
d->dialog->setEncrypt( encrypt );
}
bool NewSignEncryptEMailController::isEncrypting() const {
return d->encrypt;
}
void NewSignEncryptEMailController::setDetachedSignature( bool detached ) {
d->detached = detached;
}
bool NewSignEncryptEMailController::isResolvingInProgress() const {
return d->resolvingInProgress;
}
bool NewSignEncryptEMailController::areCertificatesResolved() const {
return d->certificatesResolved;
}
void NewSignEncryptEMailController::startResolveCertificates( const std::vector<Mailbox> & r, const std::vector<Mailbox> & s ) {
d->certificatesResolved = false;
d->resolvingInProgress = true;
const std::vector<Sender> senders = mailbox2sender( s );
const std::vector<Recipient> recipients = mailbox2recipient( r );
d->dialog->setSenders( senders );
d->dialog->setRecipients( recipients );
d->dialog->pickProtocol();
if ( d->dialog->isComplete() )
QMetaObject::invokeMethod( this, "slotDialogAccepted", Qt::QueuedConnection );
else
d->ensureDialogVisible();
}
void NewSignEncryptEMailController::Private::slotDialogAccepted() {
resolvingInProgress = false;
certificatesResolved = true;
signers = dialog->resolvedSigningKeys();
recipients = dialog->resolvedEncryptionKeys();
QMetaObject::invokeMethod( q, "certificatesResolved", Qt::QueuedConnection );
}
void NewSignEncryptEMailController::Private::slotDialogRejected() {
resolvingInProgress = false;
certificatesResolved = false;
QMetaObject::invokeMethod( q, "error", Qt::QueuedConnection,
Q_ARG( int, gpg_error( GPG_ERR_CANCELED ) ),
Q_ARG( QString, i18n("User cancel") ) );
}
void NewSignEncryptEMailController::startEncryption( const std::vector< shared_ptr<Input> > & inputs, const std::vector< shared_ptr<Output> > & outputs ) {
kleo_assert( d->encrypt );
kleo_assert( !d->resolvingInProgress );
kleo_assert( !inputs.empty() );
kleo_assert( outputs.size() == inputs.size() );
std::vector< shared_ptr<Task> > tasks;
tasks.reserve( inputs.size() );
kleo_assert( !d->recipients.empty() );
for ( unsigned int i = 0, end = inputs.size() ; i < end ; ++i ) {
const shared_ptr<EncryptEMailTask> task( new EncryptEMailTask );
task->setInput( inputs[i] );
task->setOutput( outputs[i] );
task->setRecipients( d->recipients );
tasks.push_back( task );
}
// append to runnable stack
d->runnable.insert( d->runnable.end(), tasks.begin(), tasks.end() );
d->startEncryption();
}
void NewSignEncryptEMailController::Private::startEncryption() {
shared_ptr<TaskCollection> coll( new TaskCollection );
const std::vector<shared_ptr<Task> > tmp
= kdtools::copy< std::vector<shared_ptr<Task> > >( runnable );
coll->setTasks( tmp );
#if 0
#warning use a new result dialog
// ### use a new result dialog
dialog->setTaskCollection( coll );
#endif
Q_FOREACH( const shared_ptr<Task> & t, tmp )
q->connectTask( t );
schedule();
}
void NewSignEncryptEMailController::startSigning( const std::vector< shared_ptr<Input> > & inputs, const std::vector< shared_ptr<Output> > & outputs ) {
kleo_assert( d->sign );
kleo_assert( !d->resolvingInProgress );
kleo_assert( !inputs.empty() );
kleo_assert( !outputs.empty() );
std::vector< shared_ptr<Task> > tasks;
tasks.reserve( inputs.size() );
kleo_assert( !d->signers.empty() );
kleo_assert( kdtools::none_of( d->signers, mem_fn( &Key::isNull ) ) );
for ( unsigned int i = 0, end = inputs.size() ; i < end ; ++i ) {
const shared_ptr<SignEMailTask> task( new SignEMailTask );
task->setInput( inputs[i] );
task->setOutput( outputs[i] );
task->setSigners( d->signers );
task->setDetachedSignature( d->detached );
tasks.push_back( task );
}
// append to runnable stack
d->runnable.insert( d->runnable.end(), tasks.begin(), tasks.end() );
d->startSigning();
}
void NewSignEncryptEMailController::Private::startSigning() {
shared_ptr<TaskCollection> coll( new TaskCollection );
const std::vector<shared_ptr<Task> > tmp
= kdtools::copy< std::vector<shared_ptr<Task> > >( runnable );
coll->setTasks( tmp );
#if 0
#warning use a new result dialog
// ### use a new result dialog
dialog->setTaskCollection( coll );
#endif
Q_FOREACH( const shared_ptr<Task> & t, tmp )
q->connectTask( t );
schedule();
}
void NewSignEncryptEMailController::Private::schedule() {
if ( !cms )
if ( const shared_ptr<Task> t = takeRunnable( CMS ) ) {
t->start();
cms = t;
}
if ( !openpgp )
if ( const shared_ptr<Task> t = takeRunnable( OpenPGP ) ) {
t->start();
openpgp = t;
}
if ( cms || openpgp )
return;
kleo_assert( runnable.empty() );
q->emitDoneOrError();
}
shared_ptr<Task> NewSignEncryptEMailController::Private::takeRunnable( GpgME::Protocol proto ) {
const std::vector< shared_ptr<Task> >::iterator it
= std::find_if( runnable.begin(), runnable.end(),
bind( &Task::protocol, _1 ) == proto );
if ( it == runnable.end() )
return shared_ptr<Task>();
const shared_ptr<Task> result = *it;
runnable.erase( it );
return result;
}
void NewSignEncryptEMailController::doTaskDone( const Task * task, const shared_ptr<const Task::Result> & result ) {
assert( task );
if ( result && result->hasError() ) {
QPointer<QObject> that = this;
if ( result->details().isEmpty() )
KMessageBox:: sorry( 0,
result->overview(),
i18nc("@title:window","Error") );
else
KMessageBox::detailedSorry( 0,
result->overview(),
result->details(),
i18nc("@title:window","Error") );
if ( !that )
return;
}
// We could just delete the tasks here, but we can't use
// Qt::QueuedConnection here (we need sender()) and other slots
// might not yet have executed. Therefore, we push completed tasks
// into a burial container
if ( task == d->cms.get() ) {
d->completed.push_back( d->cms );
d->cms.reset();
} else if ( task == d->openpgp.get() ) {
d->completed.push_back( d->openpgp );
d->openpgp.reset();
}
QTimer::singleShot( 0, this, SLOT(schedule()) );
}
void NewSignEncryptEMailController::cancel() {
try {
d->dialog->close();
d->cancelAllTasks();
} catch ( const std::exception & e ) {
qDebug( "Caught exception: %s", e.what() );
}
}
void NewSignEncryptEMailController::Private::cancelAllTasks() {
// we just kill all runnable tasks - this will not result in
// signal emissions.
runnable.clear();
// a cancel() will result in a call to
if ( cms )
cms->cancel();
if ( openpgp )
openpgp->cancel();
}
void NewSignEncryptEMailController::Private::ensureDialogVisible() {
q->bringToForeground( dialog );
}
#include "moc_newsignencryptemailcontroller.cpp"

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