1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
/**
* Copyright (C) 2021 Saturneric <[email protected]>
*
* This file is part of GpgFrontend.
*
* GpgFrontend 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 3 of the License, or
* (at your option) any later version.
*
* GpgFrontend 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 GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from
* the gpg4usb project, which is under GPL-3.0-or-later.
*
* All the source code of GpgFrontend was modified and released by
* Saturneric <[email protected]> starting on May 12, 2021.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#include "GpgBasicOperator.h"
#include "core/GpgModel.h"
#include "core/utils/GpgUtils.h"
GpgFrontend::GpgBasicOperator::GpgBasicOperator(int channel)
: SingletonFunctionObject<GpgBasicOperator>(channel) {}
auto GpgFrontend::GpgBasicOperator::Encrypt(
KeyListPtr keys, GpgFrontend::BypeArrayRef in_buffer,
GpgFrontend::ByteArrayPtr& out_buffer, GpgFrontend::GpgEncrResult& result)
-> GpgFrontend::GpgError {
// gpgme_encrypt_result_t e_result;
gpgme_key_t recipients[keys->size() + 1];
int index = 0;
for (const auto& key : *keys) {
recipients[index++] = static_cast<gpgme_key_t>(key);
}
// Last entry data_in array has to be nullptr
recipients[keys->size()] = nullptr;
GpgData data_in(in_buffer.data(), in_buffer.size());
GpgData data_out;
gpgme_error_t err = CheckGpgError(gpgme_op_encrypt(
ctx_, recipients, GPGME_ENCRYPT_ALWAYS_TRUST, data_in, data_out));
auto temp_data_out = data_out.Read2Buffer();
std::swap(temp_data_out, out_buffer);
auto temp_result = NewResult(gpgme_op_encrypt_result(ctx_));
std::swap(result, temp_result);
return err;
}
auto GpgFrontend::GpgBasicOperator::Decrypt(
BypeArrayRef in_buffer, GpgFrontend::ByteArrayPtr& out_buffer,
GpgFrontend::GpgDecrResult& result) -> GpgFrontend::GpgError {
gpgme_error_t err;
GpgData data_in(in_buffer.data(), in_buffer.size());
GpgData data_out;
err = CheckGpgError(gpgme_op_decrypt(ctx_, data_in, data_out));
auto temp_data_out = data_out.Read2Buffer();
std::swap(temp_data_out, out_buffer);
auto temp_result = NewResult(gpgme_op_decrypt_result(ctx_));
std::swap(result, temp_result);
return err;
}
auto GpgFrontend::GpgBasicOperator::Verify(BypeArrayRef& in_buffer,
ByteArrayPtr& sig_buffer,
GpgVerifyResult& result) const
-> GpgFrontend::GpgError {
gpgme_error_t err;
GpgData data_in(in_buffer.data(), in_buffer.size());
GpgData data_out;
if (sig_buffer != nullptr && !sig_buffer->empty()) {
GpgData sig_data(sig_buffer->data(), sig_buffer->size());
err = CheckGpgError(gpgme_op_verify(ctx_, sig_data, data_in, nullptr));
} else {
err = CheckGpgError(gpgme_op_verify(ctx_, data_in, nullptr, data_out));
}
auto temp_result = NewResult(gpgme_op_verify_result(ctx_));
std::swap(result, temp_result);
return err;
}
auto GpgFrontend::GpgBasicOperator::Sign(
KeyListPtr signers, BypeArrayRef in_buffer, ByteArrayPtr& out_buffer,
gpgme_sig_mode_t mode, GpgSignResult& result) -> GpgFrontend::GpgError {
gpgme_error_t err;
// Set Singers of this opera
SetSigners(*signers);
GpgData data_in(in_buffer.data(), in_buffer.size());
GpgData data_out;
err = CheckGpgError(gpgme_op_sign(ctx_, data_in, data_out, mode));
auto temp_data_out = data_out.Read2Buffer();
std::swap(temp_data_out, out_buffer);
auto temp_result = NewResult(gpgme_op_sign_result(ctx_));
std::swap(result, temp_result);
return err;
}
auto GpgFrontend::GpgBasicOperator::DecryptVerify(
BypeArrayRef in_buffer, ByteArrayPtr& out_buffer,
GpgDecrResult& decrypt_result, GpgVerifyResult& verify_result)
-> gpgme_error_t {
gpgme_error_t err;
GpgData data_in(in_buffer.data(), in_buffer.size());
GpgData data_out;
err = CheckGpgError(gpgme_op_decrypt_verify(ctx_, data_in, data_out));
auto temp_data_out = data_out.Read2Buffer();
std::swap(temp_data_out, out_buffer);
auto temp_decr_result = NewResult(gpgme_op_decrypt_result(ctx_));
std::swap(decrypt_result, temp_decr_result);
auto temp_verify_result = NewResult(gpgme_op_verify_result(ctx_));
std::swap(verify_result, temp_verify_result);
return err;
}
auto GpgFrontend::GpgBasicOperator::EncryptSign(
KeyListPtr keys, KeyListPtr signers, BypeArrayRef in_buffer,
ByteArrayPtr& out_buffer, GpgEncrResult& encr_result,
GpgSignResult& sign_result) -> gpgme_error_t {
gpgme_error_t err;
SetSigners(*signers);
// gpgme_encrypt_result_t e_result;
gpgme_key_t recipients[keys->size() + 1];
// set key for user
int index = 0;
for (const auto& key : *keys) {
recipients[index++] = static_cast<gpgme_key_t>(key);
}
// Last entry dataIn array has to be nullptr
recipients[keys->size()] = nullptr;
GpgData data_in(in_buffer.data(), in_buffer.size());
GpgData data_out;
// If the last parameter isnt 0, a private copy of data is made
err = CheckGpgError(gpgme_op_encrypt_sign(
ctx_, recipients, GPGME_ENCRYPT_ALWAYS_TRUST, data_in, data_out));
auto temp_data_out = data_out.Read2Buffer();
std::swap(temp_data_out, out_buffer);
auto temp_encr_result = NewResult(gpgme_op_encrypt_result(ctx_));
swap(encr_result, temp_encr_result);
auto temp_sign_result = NewResult(gpgme_op_sign_result(ctx_));
swap(sign_result, temp_sign_result);
return err;
}
void GpgFrontend::GpgBasicOperator::SetSigners(KeyArgsList& signers) {
gpgme_signers_clear(ctx_);
for (const GpgKey& key : signers) {
SPDLOG_DEBUG("key fpr: {}", key.GetFingerprint());
if (key.IsHasActualSigningCapability()) {
SPDLOG_DEBUG("signer");
auto error = gpgme_signers_add(ctx_, gpgme_key_t(key));
CheckGpgError(error);
}
}
if (signers.size() != gpgme_signers_count(ctx_))
SPDLOG_DEBUG("not all signers added");
}
auto GpgFrontend::GpgBasicOperator::GetSigners()
-> std::unique_ptr<GpgFrontend::KeyArgsList> {
auto count = gpgme_signers_count(ctx_);
auto signers = std::make_unique<std::vector<GpgKey>>();
for (auto i = 0U; i < count; i++) {
auto key = GpgKey(gpgme_signers_enum(ctx_, i));
signers->push_back(GpgKey(std::move(key)));
}
return signers;
}
auto GpgFrontend::GpgBasicOperator::EncryptSymmetric(
GpgFrontend::ByteArray& in_buffer, GpgFrontend::ByteArrayPtr& out_buffer,
GpgFrontend::GpgEncrResult& result) -> gpg_error_t {
// deepcopy from ByteArray to GpgData
GpgData data_in(in_buffer.data(), in_buffer.size());
GpgData data_out;
gpgme_error_t err = CheckGpgError(gpgme_op_encrypt(
ctx_, nullptr, GPGME_ENCRYPT_SYMMETRIC, data_in, data_out));
auto temp_data_out = data_out.Read2Buffer();
std::swap(temp_data_out, out_buffer);
// TODO(Saturneric): maybe a bug of gpgme
if (gpgme_err_code(err) == GPG_ERR_NO_ERROR) {
auto temp_result = NewResult(gpgme_op_encrypt_result(ctx_));
std::swap(result, temp_result);
}
return err;
}
|
