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comparison plugins/enigma/lib/enigma_key.php @ 0:1e000243b222

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vanilla 1.3.3 distro, I hope
author Charlie Root
date Thu, 04 Jan 2018 15:50:29 -0500
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-1:000000000000 0:1e000243b222
1 <?php
2
3 /**
4 +-------------------------------------------------------------------------+
5 | Key class for the Enigma Plugin |
6 | |
7 | Copyright (C) 2010-2015 The Roundcube Dev Team |
8 | |
9 | Licensed under the GNU General Public License version 3 or |
10 | any later version with exceptions for skins & plugins. |
11 | See the README file for a full license statement. |
12 | |
13 +-------------------------------------------------------------------------+
14 | Author: Aleksander Machniak <alec@alec.pl> |
15 +-------------------------------------------------------------------------+
16 */
17
18 class enigma_key
19 {
20 public $id;
21 public $name;
22 public $users = array();
23 public $subkeys = array();
24 public $reference;
25 public $password;
26
27 const TYPE_UNKNOWN = 0;
28 const TYPE_KEYPAIR = 1;
29 const TYPE_PUBLIC = 2;
30
31 const CAN_ENCRYPT = 1;
32 const CAN_SIGN = 2;
33 const CAN_CERTIFY = 4;
34 const CAN_AUTHENTICATE = 8;
35
36
37 /**
38 * Keys list sorting callback for usort()
39 */
40 static function cmp($a, $b)
41 {
42 return strcmp($a->name, $b->name);
43 }
44
45 /**
46 * Returns key type
47 */
48 function get_type()
49 {
50 if ($this->subkeys[0]->has_private)
51 return enigma_key::TYPE_KEYPAIR;
52 else if (!empty($this->subkeys[0]))
53 return enigma_key::TYPE_PUBLIC;
54
55 return enigma_key::TYPE_UNKNOWN;
56 }
57
58 /**
59 * Returns true if all user IDs are revoked
60 */
61 function is_revoked()
62 {
63 foreach ($this->subkeys as $subkey)
64 if (!$subkey->revoked)
65 return false;
66
67 return true;
68 }
69
70 /**
71 * Returns true if any user ID is valid
72 */
73 function is_valid()
74 {
75 foreach ($this->users as $user)
76 if ($user->valid)
77 return true;
78
79 return false;
80 }
81
82 /**
83 * Returns true if any of subkeys is not expired
84 */
85 function is_expired()
86 {
87 $now = time();
88
89 foreach ($this->subkeys as $subkey)
90 if (!$subkey->expires || $subkey->expires > $now)
91 return true;
92
93 return false;
94 }
95
96 /**
97 * Returns true if any of subkeys is a private key
98 */
99 function is_private()
100 {
101 $now = time();
102
103 foreach ($this->subkeys as $subkey)
104 if ($subkey->has_private)
105 return true;
106
107 return false;
108 }
109
110 /**
111 * Get key ID by user email
112 */
113 function find_subkey($email, $mode)
114 {
115 $now = time();
116
117 foreach ($this->users as $user) {
118 if (strcasecmp($user->email, $email) === 0 && $user->valid && !$user->revoked) {
119 foreach ($this->subkeys as $subkey) {
120 if (!$subkey->revoked && (!$subkey->expires || $subkey->expires > $now)) {
121 if ($subkey->usage & $mode) {
122 return $subkey;
123 }
124 }
125 }
126 }
127 }
128 }
129
130 /**
131 * Converts long ID or Fingerprint to short ID
132 * Crypt_GPG uses internal, but e.g. Thunderbird's Enigmail displays short ID
133 *
134 * @param string Key ID or fingerprint
135 * @return string Key short ID
136 */
137 static function format_id($id)
138 {
139 // E.g. 04622F2089E037A5 => 89E037A5
140
141 return substr($id, -8);
142 }
143
144 /**
145 * Formats fingerprint string
146 *
147 * @param string Key fingerprint
148 *
149 * @return string Formatted fingerprint (with spaces)
150 */
151 static function format_fingerprint($fingerprint)
152 {
153 if (!$fingerprint) {
154 return '';
155 }
156
157 $result = '';
158 for ($i=0; $i<40; $i++) {
159 if ($i % 4 == 0) {
160 $result .= ' ';
161 }
162 $result .= $fingerprint[$i];
163 }
164
165 return $result;
166 }
167 }