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qgpgmesignjob.cpp
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1 /*
2  qgpgmesignjob.cpp
3 
4  This file is part of libkleopatra, the KDE keymanagement library
5  Copyright (c) 2004,2007,2008 Klarälvdalens Datakonsult AB
6 
7  Libkleopatra is free software; you can redistribute it and/or
8  modify it under the terms of the GNU General Public License as
9  published by the Free Software Foundation; either version 2 of the
10  License, or (at your option) any later version.
11 
12  Libkleopatra is distributed in the hope that it will be useful,
13  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  General Public License for more details.
16 
17  You should have received a copy of the GNU General Public License along
18  with this program; if not, write to the Free Software Foundation, Inc.,
19  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 
21  In addition, as a special exception, the copyright holders give
22  permission to link the code of this program with any edition of
23  the Qt library by Trolltech AS, Norway (or with modified versions
24  of Qt that use the same license as Qt), and distribute linked
25  combinations including the two. You must obey the GNU General
26  Public License in all respects for all of the code used other than
27  Qt. If you modify this file, you may extend this exception to
28  your version of the file, but you are not obligated to do so. If
29  you do not wish to do so, delete this exception statement from
30  your version.
31 */
32 
33 #include "qgpgmesignjob.h"
34 
35 #include "ui/messagebox.h"
36 
37 #include <qgpgme/dataprovider.h>
38 
39 #include <gpgme++/context.h>
40 #include <gpgme++/signingresult.h>
41 #include <gpgme++/data.h>
42 
43 #include <QBuffer>
44 
45 #ifndef Q_MOC_RUN
46 #include <boost/weak_ptr.hpp>
47 #endif
48 
49 #include <cassert>
50 
51 using namespace Kleo;
52 using namespace GpgME;
53 using namespace boost;
54 
55 QGpgMESignJob::QGpgMESignJob( Context * context )
56  : mixin_type( context ),
57  mOutputIsBase64Encoded( false )
58 {
59  lateInitialization();
60 }
61 
62 QGpgMESignJob::~QGpgMESignJob() {}
63 
64 void QGpgMESignJob::setOutputIsBase64Encoded( bool on ) {
65  mOutputIsBase64Encoded = on;
66 }
67 
68 static QGpgMESignJob::result_type sign( Context * ctx, QThread * thread,
69  const std::vector<Key> & signers,
70  const weak_ptr<QIODevice> & plainText_,
71  const weak_ptr<QIODevice> & signature_,
72  SignatureMode mode,
73  bool outputIsBsse64Encoded ) {
74 
75  const shared_ptr<QIODevice> plainText = plainText_.lock();
76  const shared_ptr<QIODevice> signature = signature_.lock();
77 
78  const _detail::ToThreadMover ptMover( plainText, thread );
79  const _detail::ToThreadMover sgMover( signature, thread );
80 
81  QGpgME::QIODeviceDataProvider in( plainText );
82  const Data indata( &in );
83 
84  ctx->clearSigningKeys();
85  Q_FOREACH( const Key & signer, signers )
86  if ( !signer.isNull() )
87  if ( const Error err = ctx->addSigningKey( signer ) )
88  return make_tuple( SigningResult( err ), QByteArray(), QString(), Error() );
89 
90  if ( !signature ) {
91  QGpgME::QByteArrayDataProvider out;
92  Data outdata( &out );
93 
94  if ( outputIsBsse64Encoded )
95  outdata.setEncoding( Data::Base64Encoding );
96 
97  const SigningResult res = ctx->sign( indata, outdata, mode );
98  Error ae;
99  const QString log = _detail::audit_log_as_html( ctx, ae );
100  return make_tuple( res, out.data(), log, ae );
101  } else {
102  QGpgME::QIODeviceDataProvider out( signature );
103  Data outdata( &out );
104 
105  if ( outputIsBsse64Encoded )
106  outdata.setEncoding( Data::Base64Encoding );
107 
108  const SigningResult res = ctx->sign( indata, outdata, mode );
109  Error ae;
110  const QString log = _detail::audit_log_as_html( ctx, ae );
111  return make_tuple( res, QByteArray(), log, ae );
112  }
113 
114 }
115 
116 static QGpgMESignJob::result_type sign_qba( Context * ctx,
117  const std::vector<Key> & signers,
118  const QByteArray & plainText,
119  SignatureMode mode,
120  bool outputIsBsse64Encoded ) {
121  const shared_ptr<QBuffer> buffer( new QBuffer );
122  buffer->setData( plainText );
123  if ( !buffer->open( QIODevice::ReadOnly ) )
124  assert( !"This should never happen: QBuffer::open() failed" );
125  return sign( ctx, 0, signers, buffer, shared_ptr<QIODevice>(), mode, outputIsBsse64Encoded );
126 }
127 
128 Error QGpgMESignJob::start( const std::vector<Key> & signers, const QByteArray & plainText, SignatureMode mode ) {
129  run( boost::bind( &sign_qba, _1, signers, plainText, mode, mOutputIsBase64Encoded ) );
130  return Error();
131 }
132 
133 void QGpgMESignJob::start( const std::vector<Key> & signers, const shared_ptr<QIODevice> & plainText, const shared_ptr<QIODevice> & signature, SignatureMode mode ) {
134  run( boost::bind( &sign, _1, _2, signers, _3, _4, mode, mOutputIsBase64Encoded ), plainText, signature );
135 }
136 
137 SigningResult QGpgMESignJob::exec( const std::vector<Key> & signers, const QByteArray & plainText, SignatureMode mode, QByteArray & signature ) {
138  const result_type r = sign_qba( context(), signers, plainText, mode, mOutputIsBase64Encoded );
139  signature = get<1>( r );
140  resultHook( r );
141  return mResult;
142 }
143 
144 void QGpgMESignJob::resultHook( const result_type & tuple ) {
145  mResult = get<0>( tuple );
146 }
147 
148 void QGpgMESignJob::showErrorDialog( QWidget * parent, const QString & caption ) const {
149  if ( mResult.error() && !mResult.error().isCanceled() )
150  MessageBox::error( parent, mResult, this, caption );
151 }
152 
Kleo::QGpgMESignJob::QGpgMESignJob
QGpgMESignJob(GpgME::Context *context)
Definition: qgpgmesignjob.cpp:55
QWidget
QByteArray
Kleo::_detail::ThreadedJobMixin< SignJob, boost::tuple< GpgME::SigningResult, QByteArray, QString, GpgME::Error > >::context
GpgME::Context * context() const
Definition: threadedjobmixin.h:178
Kleo::QGpgMESignJob::start
GpgME::Error start(const std::vector< GpgME::Key > &signers, const QByteArray &plainText, GpgME::SignatureMode mode)
Kleo::MessageBox::error
static void error(QWidget *parent, const GpgME::SigningResult &result, const Kleo::Job *job, const QString &caption, KMessageBox::Options options=KMessageBox::Notify)
QBuffer
sign
static QGpgMESignJob::result_type sign(Context *ctx, QThread *thread, const std::vector< Key > &signers, const weak_ptr< QIODevice > &plainText_, const weak_ptr< QIODevice > &signature_, SignatureMode mode, bool outputIsBsse64Encoded)
Definition: qgpgmesignjob.cpp:68
Kleo::QGpgMESignJob::resultHook
void resultHook(const result_type &r)
Definition: qgpgmesignjob.cpp:144
Kleo::QGpgMESignJob::setOutputIsBase64Encoded
void setOutputIsBase64Encoded(bool on)
Definition: qgpgmesignjob.cpp:64
boost::shared_ptr
Definition: checksumdefinition.h:46
Kleo::_detail::ToThreadMover
Definition: threadedjobmixin.h:77
Kleo::_detail::ThreadedJobMixin< SignJob, boost::tuple< GpgME::SigningResult, QByteArray, QString, GpgME::Error > >::lateInitialization
void lateInitialization()
Definition: threadedjobmixin.h:146
Kleo::_detail::audit_log_as_html
QString audit_log_as_html(GpgME::Context *ctx, GpgME::Error &err)
sign_qba
static QGpgMESignJob::result_type sign_qba(Context *ctx, const std::vector< Key > &signers, const QByteArray &plainText, SignatureMode mode, bool outputIsBsse64Encoded)
Definition: qgpgmesignjob.cpp:116
messagebox.h
QString
qgpgmesignjob.h
Kleo::QGpgMESignJob::~QGpgMESignJob
~QGpgMESignJob()
Definition: qgpgmesignjob.cpp:62
Kleo::_detail::ThreadedJobMixin< SignJob, boost::tuple< GpgME::SigningResult, QByteArray, QString, GpgME::Error > >::result_type
boost::tuple< GpgME::SigningResult, QByteArray, QString, GpgME::Error > result_type
Definition: threadedjobmixin.h:117
Kleo::_detail::ThreadedJobMixin< SignJob, boost::tuple< GpgME::SigningResult, QByteArray, QString, GpgME::Error > >::run
void run(const T_binder &func)
Definition: threadedjobmixin.h:153
Kleo::QGpgMESignJob::showErrorDialog
void showErrorDialog(QWidget *parent, const QString &caption) const
Definition: qgpgmesignjob.cpp:148
Kleo::QGpgMESignJob::exec
GpgME::SigningResult exec(const std::vector< GpgME::Key > &signers, const QByteArray &plainText, GpgME::SignatureMode mode, QByteArray &signature)
Definition: qgpgmesignjob.cpp:137
QThread
Kleo::_detail::ThreadedJobMixin< SignJob, boost::tuple< GpgME::SigningResult, QByteArray, QString, GpgME::Error > >
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