Line data Source code
1 : /*
2 : qgpgmesignjob.cpp
3 :
4 : This file is part of qgpgme, the Qt API binding for gpgme
5 : Copyright (c) 2004,2007,2008 Klarälvdalens Datakonsult AB
6 : Copyright (c) 2016 by Bundesamt für Sicherheit in der Informationstechnik
7 : Software engineering by Intevation GmbH
8 :
9 : QGpgME is free software; you can redistribute it and/or
10 : modify it under the terms of the GNU General Public License as
11 : published by the Free Software Foundation; either version 2 of the
12 : License, or (at your option) any later version.
13 :
14 : QGpgME is distributed in the hope that it will be useful,
15 : but WITHOUT ANY WARRANTY; without even the implied warranty of
16 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 : General Public License for more details.
18 :
19 : You should have received a copy of the GNU General Public License along
20 : with this program; if not, write to the Free Software Foundation, Inc.,
21 : 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 :
23 : In addition, as a special exception, the copyright holders give
24 : permission to link the code of this program with any edition of
25 : the Qt library by Trolltech AS, Norway (or with modified versions
26 : of Qt that use the same license as Qt), and distribute linked
27 : combinations including the two. You must obey the GNU General
28 : Public License in all respects for all of the code used other than
29 : Qt. If you modify this file, you may extend this exception to
30 : your version of the file, but you are not obligated to do so. If
31 : you do not wish to do so, delete this exception statement from
32 : your version.
33 : */
34 :
35 : #ifdef HAVE_CONFIG_H
36 : #include "config.h"
37 : #endif
38 :
39 : #include "qgpgmesignjob.h"
40 :
41 : #include "dataprovider.h"
42 :
43 : #include "context.h"
44 : #include "signingresult.h"
45 : #include "data.h"
46 :
47 : #include <QBuffer>
48 :
49 :
50 : #include <cassert>
51 :
52 : using namespace QGpgME;
53 : using namespace GpgME;
54 :
55 6 : QGpgMESignJob::QGpgMESignJob(Context *context)
56 : : mixin_type(context),
57 6 : mOutputIsBase64Encoded(false)
58 : {
59 6 : lateInitialization();
60 6 : }
61 :
62 12 : QGpgMESignJob::~QGpgMESignJob() {}
63 :
64 0 : void QGpgMESignJob::setOutputIsBase64Encoded(bool on)
65 : {
66 0 : mOutputIsBase64Encoded = on;
67 0 : }
68 :
69 6 : static QGpgMESignJob::result_type sign(Context *ctx, QThread *thread,
70 : const std::vector<Key> &signers,
71 : const std::weak_ptr<QIODevice> &plainText_,
72 : const std::weak_ptr<QIODevice> &signature_,
73 : SignatureMode mode,
74 : bool outputIsBsse64Encoded)
75 : {
76 :
77 12 : const std::shared_ptr<QIODevice> plainText = plainText_.lock();
78 12 : const std::shared_ptr<QIODevice> signature = signature_.lock();
79 :
80 12 : const _detail::ToThreadMover ptMover(plainText, thread);
81 12 : const _detail::ToThreadMover sgMover(signature, thread);
82 :
83 12 : QGpgME::QIODeviceDataProvider in(plainText);
84 12 : const Data indata(&in);
85 :
86 6 : ctx->clearSigningKeys();
87 12 : Q_FOREACH (const Key &signer, signers)
88 6 : if (!signer.isNull())
89 12 : if (const Error err = ctx->addSigningKey(signer)) {
90 0 : return std::make_tuple(SigningResult(err), QByteArray(), QString(), Error());
91 : }
92 :
93 6 : if (!signature) {
94 12 : QGpgME::QByteArrayDataProvider out;
95 12 : Data outdata(&out);
96 :
97 6 : if (outputIsBsse64Encoded) {
98 0 : outdata.setEncoding(Data::Base64Encoding);
99 : }
100 :
101 12 : const SigningResult res = ctx->sign(indata, outdata, mode);
102 12 : Error ae;
103 12 : const QString log = _detail::audit_log_as_html(ctx, ae);
104 6 : return std::make_tuple(res, out.data(), log, ae);
105 : } else {
106 0 : QGpgME::QIODeviceDataProvider out(signature);
107 0 : Data outdata(&out);
108 :
109 0 : if (outputIsBsse64Encoded) {
110 0 : outdata.setEncoding(Data::Base64Encoding);
111 : }
112 :
113 0 : const SigningResult res = ctx->sign(indata, outdata, mode);
114 0 : Error ae;
115 0 : const QString log = _detail::audit_log_as_html(ctx, ae);
116 0 : return std::make_tuple(res, QByteArray(), log, ae);
117 : }
118 :
119 : }
120 :
121 6 : static QGpgMESignJob::result_type sign_qba(Context *ctx,
122 : const std::vector<Key> &signers,
123 : const QByteArray &plainText,
124 : SignatureMode mode,
125 : bool outputIsBsse64Encoded)
126 : {
127 12 : const std::shared_ptr<QBuffer> buffer(new QBuffer);
128 6 : buffer->setData(plainText);
129 6 : if (!buffer->open(QIODevice::ReadOnly)) {
130 0 : assert(!"This should never happen: QBuffer::open() failed");
131 : }
132 12 : return sign(ctx, 0, signers, buffer, std::shared_ptr<QIODevice>(), mode, outputIsBsse64Encoded);
133 : }
134 :
135 0 : Error QGpgMESignJob::start(const std::vector<Key> &signers, const QByteArray &plainText, SignatureMode mode)
136 : {
137 0 : run(std::bind(&sign_qba, std::placeholders::_1, signers, plainText, mode, mOutputIsBase64Encoded));
138 0 : return Error();
139 : }
140 :
141 0 : void QGpgMESignJob::start(const std::vector<Key> &signers, const std::shared_ptr<QIODevice> &plainText, const std::shared_ptr<QIODevice> &signature, SignatureMode mode)
142 : {
143 0 : run(std::bind(&sign, std::placeholders::_1, std::placeholders::_2, signers, std::placeholders::_3, std::placeholders::_4, mode, mOutputIsBase64Encoded), plainText, signature);
144 0 : }
145 :
146 6 : SigningResult QGpgMESignJob::exec(const std::vector<Key> &signers, const QByteArray &plainText, SignatureMode mode, QByteArray &signature)
147 : {
148 12 : const result_type r = sign_qba(context(), signers, plainText, mode, mOutputIsBase64Encoded);
149 6 : signature = std::get<1>(r);
150 6 : resultHook(r);
151 12 : return mResult;
152 : }
153 :
154 6 : void QGpgMESignJob::resultHook(const result_type &tuple)
155 : {
156 6 : mResult = std::get<0>(tuple);
157 6 : }
158 :
159 : #if 0
160 : TODO port
161 : void QGpgMESignJob::showErrorDialog(QWidget *parent, const QString &caption) const
162 : {
163 : if (mResult.error() && !mResult.error().isCanceled()) {
164 : MessageBox::error(parent, mResult, this, caption);
165 : }
166 : }
167 : #endif
168 : #include "qgpgmesignjob.moc"
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