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
|
/* gpgme.js - Javascript integration for gpgme
* Copyright (C) 2018 Bundesamt für Sicherheit in der Informationstechnik
*
* This file is part of GPGME.
*
* GPGME is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* GPGME 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
* SPDX-License-Identifier: LGPL-2.1+
*
* Author(s):
* Maximilian Krambach <[email protected]>
*/
import { gpgme_error } from './Errors';
/**
* Validates an object containing a signature, as sent by the nativeMessaging
* interface
* @param {Object} sigObject Object as returned by gpgme-json. The definition
* of the expected values are to be found in {@link expKeys}, {@link expSum},
* {@link expNote}.
* @returns {GPGME_Signature|GPGME_Error} Signature Object
*/
export function createSignature(sigObject){
if (
typeof(sigObject) !=='object' ||
!sigObject.hasOwnProperty('summary') ||
!sigObject.hasOwnProperty('fingerprint') ||
!sigObject.hasOwnProperty('timestamp')
//TODO check if timestamp is mandatory in specification
){
return gpgme_error('SIG_WRONG');
}
let keys = Object.keys(sigObject);
for (let i=0; i< keys.length; i++){
if ( typeof(sigObject[keys[i]]) !== expKeys[keys[i]] ){
return gpgme_error('SIG_WRONG');
}
}
let sumkeys = Object.keys(sigObject.summary);
for (let i=0; i< sumkeys.length; i++){
if ( typeof(sigObject.summary[sumkeys[i]]) !== expSum[sumkeys[i]] ){
return gpgme_error('SIG_WRONG');
}
}
if (sigObject.hasOwnProperty('notations')){
if (!Array.isArray(sigObject.notations)){
return gpgme_error('SIG_WRONG');
}
for (let i=0; i < sigObject.notations.length; i++){
let notation = sigObject.notations[i];
let notekeys = Object.keys(notation);
for (let j=0; j < notekeys.length; j++){
if ( typeof(notation[notekeys[j]]) !== expNote[notekeys[j]] ){
return gpgme_error('SIG_WRONG');
}
}
}
}
return new GPGME_Signature(sigObject);
}
/**
* Representing the details of a signature. The full details as given by
* gpgme-json can be read from the _rawSigObject.
*
* Note to reviewers: This class should be read only except via
* {@link createSignature}
* @protected
* @class
*/
class GPGME_Signature {
constructor(sigObject){
let _rawSigObject = sigObject;
this.getFingerprint = function(){
if (!_rawSigObject.fingerprint){
return gpgme_error('SIG_WRONG');
} else {
return _rawSigObject.fingerprint;
}
};
/**
* The expiration of this Signature as Javascript date, or null if
* signature does not expire
* @returns {Date | null}
*/
this.getExpiration = function(){
if (!_rawSigObject.exp_timestamp){
return null;
}
return new Date(_rawSigObject.exp_timestamp* 1000);
};
/**
* The creation date of this Signature in Javascript Date
* @returns {Date}
*/
this.getTimestamp= function (){
return new Date(_rawSigObject.timestamp * 1000);
};
/**
* The overall validity of the key. If false, errorDetails may contain
* additional information
*/
this.getValid= function() {
if (_rawSigObject.summary.valid === true){
return true;
} else {
return false;
}
};
/**
* gives more information on non-valid signatures. Refer to the gpgme docs
* https://www.gnupg.org/documentation/manuals/gpgme/Verify.html for
* details on the values
* @returns {Object} Object with boolean properties
*/
this.getErrorDetails = function (){
let properties = ['revoked', 'key-expired', 'sig-expired',
'key-missing', 'crl-missing', 'crl-too-old', 'bad-policy',
'sys-error'];
let result = {};
for (let i=0; i< properties.length; i++){
if ( _rawSigObject.hasOwnProperty(properties[i]) ){
result[properties[i]] = _rawSigObject[properties[i]];
}
}
return result;
};
}
/**
* Convenience getter for {@link getFingerprint}
*/
get fingerprint(){
return this.getFingerprint();
}
/**
* Convenience getter for {@link getExpiration}
*/
get expiration(){
return this.getExpiration();
}
/**
* Convenience getter for {@link getTimeStamp}
*/
get timestamp(){
return this.getTimestamp();
}
/**
* Convenience getter for {@link getValid}
*/
get valid(){
return this.getValid();
}
/**
* Convenience getter for {@link getErrorDetails}
*/
get errorDetails(){
return this.getErrorDetails();
}
}
/**
* Keys and their value's type for the signature Object
*/
const expKeys = {
'wrong_key_usage': 'boolean',
'chain_model': 'boolean',
'summary': 'object',
'is_de_vs': 'boolean',
'status_string':'string',
'fingerprint':'string',
'validity_string': 'string',
'pubkey_algo_name':'string',
'hash_algo_name':'string',
'pka_address':'string',
'status_code':'number',
'timestamp':'number',
'exp_timestamp':'number',
'pka_trust':'number',
'validity':'number',
'validity_reason':'number',
'notations': 'object'
};
/**
* Keys and their value's type for the summary
*/
const expSum = {
'valid': 'boolean',
'green': 'boolean',
'red': 'boolean',
'revoked': 'boolean',
'key-expired': 'boolean',
'sig-expired': 'boolean',
'key-missing': 'boolean',
'crl-missing': 'boolean',
'crl-too-old': 'boolean',
'bad-policy': 'boolean',
'sys-error': 'boolean',
'sigsum': 'object'
};
/**
* Keys and their value's type for notations objects
*/
const expNote = {
'human_readable': 'boolean',
'critical':'boolean',
'name': 'string',
'value': 'string',
'flags': 'number'
};
|
