Line data Source code
1 : /*
2 : qgpgmeencryptjob.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 "qgpgmeencryptjob.h"
40 :
41 : #include "dataprovider.h"
42 :
43 : #include "context.h"
44 : #include "encryptionresult.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 3 : QGpgMEEncryptJob::QGpgMEEncryptJob(Context *context)
56 : : mixin_type(context),
57 3 : mOutputIsBase64Encoded(false)
58 : {
59 3 : lateInitialization();
60 3 : }
61 :
62 6 : QGpgMEEncryptJob::~QGpgMEEncryptJob() {}
63 :
64 0 : void QGpgMEEncryptJob::setOutputIsBase64Encoded(bool on)
65 : {
66 0 : mOutputIsBase64Encoded = on;
67 0 : }
68 :
69 3 : static QGpgMEEncryptJob::result_type encrypt(Context *ctx, QThread *thread,
70 : const std::vector<Key> &recipients,
71 : const std::weak_ptr<QIODevice> &plainText_,
72 : const std::weak_ptr<QIODevice> &cipherText_,
73 : const Context::EncryptionFlags eflags,
74 : bool outputIsBsse64Encoded)
75 : {
76 :
77 6 : const std::shared_ptr<QIODevice> plainText = plainText_.lock();
78 6 : const std::shared_ptr<QIODevice> cipherText = cipherText_.lock();
79 :
80 6 : const _detail::ToThreadMover ctMover(cipherText, thread);
81 6 : const _detail::ToThreadMover ptMover(plainText, thread);
82 :
83 6 : QGpgME::QIODeviceDataProvider in(plainText);
84 6 : const Data indata(&in);
85 :
86 3 : if (!cipherText) {
87 4 : QGpgME::QByteArrayDataProvider out;
88 4 : Data outdata(&out);
89 :
90 2 : if (outputIsBsse64Encoded) {
91 0 : outdata.setEncoding(Data::Base64Encoding);
92 : }
93 :
94 4 : const EncryptionResult res = ctx->encrypt(recipients, indata, outdata, eflags);
95 4 : Error ae;
96 4 : const QString log = _detail::audit_log_as_html(ctx, ae);
97 2 : return std::make_tuple(res, out.data(), log, ae);
98 : } else {
99 2 : QGpgME::QIODeviceDataProvider out(cipherText);
100 2 : Data outdata(&out);
101 :
102 1 : if (outputIsBsse64Encoded) {
103 0 : outdata.setEncoding(Data::Base64Encoding);
104 : }
105 :
106 2 : const EncryptionResult res = ctx->encrypt(recipients, indata, outdata, eflags);
107 2 : Error ae;
108 2 : const QString log = _detail::audit_log_as_html(ctx, ae);
109 1 : return std::make_tuple(res, QByteArray(), log, ae);
110 : }
111 :
112 : }
113 :
114 2 : static QGpgMEEncryptJob::result_type encrypt_qba(Context *ctx, const std::vector<Key> &recipients, const QByteArray &plainText, const Context::EncryptionFlags eflags, bool outputIsBsse64Encoded)
115 : {
116 4 : const std::shared_ptr<QBuffer> buffer(new QBuffer);
117 2 : buffer->setData(plainText);
118 2 : if (!buffer->open(QIODevice::ReadOnly)) {
119 0 : assert(!"This should never happen: QBuffer::open() failed");
120 : }
121 4 : return encrypt(ctx, 0, recipients, buffer, std::shared_ptr<QIODevice>(), eflags, outputIsBsse64Encoded);
122 : }
123 :
124 0 : Error QGpgMEEncryptJob::start(const std::vector<Key> &recipients, const QByteArray &plainText, bool alwaysTrust)
125 : {
126 0 : run(std::bind(&encrypt_qba, std::placeholders::_1, recipients, plainText,
127 0 : alwaysTrust ? Context::AlwaysTrust : Context::None, mOutputIsBase64Encoded));
128 0 : return Error();
129 : }
130 :
131 1 : void QGpgMEEncryptJob::start(const std::vector<Key> &recipients, const std::shared_ptr<QIODevice> &plainText,
132 : const std::shared_ptr<QIODevice> &cipherText, const Context::EncryptionFlags eflags)
133 : {
134 2 : run(std::bind(&encrypt,
135 : std::placeholders::_1, std::placeholders::_2,
136 : recipients,
137 : std::placeholders::_3, std::placeholders::_4,
138 : eflags,
139 : mOutputIsBase64Encoded),
140 1 : plainText, cipherText);
141 1 : }
142 :
143 2 : EncryptionResult QGpgMEEncryptJob::exec(const std::vector<Key> &recipients, const QByteArray &plainText,
144 : const Context::EncryptionFlags eflags, QByteArray &cipherText)
145 : {
146 4 : const result_type r = encrypt_qba(context(), recipients, plainText, eflags, mOutputIsBase64Encoded);
147 2 : cipherText = std::get<1>(r);
148 2 : resultHook(r);
149 4 : return mResult;
150 : }
151 :
152 0 : void QGpgMEEncryptJob::start(const std::vector<Key> &recipients, const std::shared_ptr<QIODevice> &plainText, const std::shared_ptr<QIODevice> &cipherText, bool alwaysTrust)
153 : {
154 0 : return start(recipients, plainText, cipherText, alwaysTrust ? Context::AlwaysTrust : Context::None);
155 : }
156 :
157 0 : EncryptionResult QGpgMEEncryptJob::exec(const std::vector<Key> &recipients, const QByteArray &plainText, bool alwaysTrust, QByteArray &cipherText)
158 : {
159 0 : return exec(recipients, plainText, alwaysTrust ? Context::AlwaysTrust : Context::None, cipherText);
160 : }
161 :
162 3 : void QGpgMEEncryptJob::resultHook(const result_type &tuple)
163 : {
164 3 : mResult = std::get<0>(tuple);
165 3 : }
166 :
167 : #if 0
168 : void QGpgMEEncryptJob::showErrorDialog(QWidget *parent, const QString &caption) const
169 : {
170 : if (mResult.error() && !mResult.error().isCanceled()) {
171 : MessageBox::error(parent, mResult, this, caption);
172 : }
173 : }
174 : #endif
175 : #include "qgpgmeencryptjob.moc"
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