| commit | author | age | ||
| 48e9c1 | 1 | <?php |
| T | 2 | /* |
| 3 | +-------------------------------------------------------------------------+ | |
| 4 | | Key class for the Enigma Plugin | | |
| 5 | | | | |
| 6 | | This program is free software; you can redistribute it and/or modify | | |
| 7 | | it under the terms of the GNU General Public License version 2 | | |
| 8 | | as published by the Free Software Foundation. | | |
| 9 | | | | |
| 10 | | This program is distributed in the hope that it will be useful, | | |
| 11 | | but WITHOUT ANY WARRANTY; without even the implied warranty of | | |
| 12 | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | | |
| 13 | | GNU General Public License for more details. | | |
| 14 | | | | |
| 15 | | You should have received a copy of the GNU General Public License along | | |
| 16 | | with this program; if not, write to the Free Software Foundation, Inc., | | |
| 17 | | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | | |
| 18 | | | | |
| 19 | +-------------------------------------------------------------------------+ | |
| 20 | | Author: Aleksander Machniak <alec@alec.pl> | | |
| 21 | +-------------------------------------------------------------------------+ | |
| 22 | */ | |
| 23 | ||
| 24 | class enigma_key | |
| 25 | { | |
| 26 | public $id; | |
| 27 | public $name; | |
| 28 | public $users = array(); | |
| 29 | public $subkeys = array(); | |
| 30 | ||
| 31 | const TYPE_UNKNOWN = 0; | |
| 32 | const TYPE_KEYPAIR = 1; | |
| 33 | const TYPE_PUBLIC = 2; | |
| 34 | ||
| 35 | /** | |
| 36 | * Keys list sorting callback for usort() | |
| 37 | */ | |
| 38 | static function cmp($a, $b) | |
| 39 | { | |
| 40 | return strcmp($a->name, $b->name); | |
| 41 | } | |
| 42 | ||
| 43 | /** | |
| 44 | * Returns key type | |
| 45 | */ | |
| 46 | function get_type() | |
| 47 | { | |
| 48 | if ($this->subkeys[0]->has_private) | |
| 49 | return enigma_key::TYPE_KEYPAIR; | |
| 50 | else if (!empty($this->subkeys[0])) | |
| 51 | return enigma_key::TYPE_PUBLIC; | |
| 52 | ||
| 53 | return enigma_key::TYPE_UNKNOWN; | |
| 54 | } | |
| 55 | ||
| 56 | /** | |
| 57 | * Returns true if all user IDs are revoked | |
| 58 | */ | |
| 59 | function is_revoked() | |
| 60 | { | |
| 61 | foreach ($this->subkeys as $subkey) | |
| 62 | if (!$subkey->revoked) | |
| 63 | return false; | |
| 64 | ||
| 65 | return true; | |
| 66 | } | |
| 67 | ||
| 68 | /** | |
| 69 | * Returns true if any user ID is valid | |
| 70 | */ | |
| 71 | function is_valid() | |
| 72 | { | |
| 73 | foreach ($this->users as $user) | |
| 74 | if ($user->valid) | |
| 75 | return true; | |
| 76 | ||
| 77 | return false; | |
| 78 | } | |
| 79 | ||
| 80 | /** | |
| 81 | * Returns true if any of subkeys is not expired | |
| 82 | */ | |
| 83 | function is_expired() | |
| 84 | { | |
| 85 | $now = time(); | |
| 86 | ||
| 87 | foreach ($this->subkeys as $subkey) | |
| 88 | if (!$subkey->expires || $subkey->expires > $now) | |
| 89 | return true; | |
| 90 | ||
| 91 | return false; | |
| 92 | } | |
| 93 | ||
| 94 | /** | |
| 95 | * Converts long ID or Fingerprint to short ID | |
| 96 | * Crypt_GPG uses internal, but e.g. Thunderbird's Enigmail displays short ID | |
| 97 | * | |
| 98 | * @param string Key ID or fingerprint | |
| 99 | * @return string Key short ID | |
| 100 | */ | |
| 101 | static function format_id($id) | |
| 102 | { | |
| 103 | // E.g. 04622F2089E037A5 => 89E037A5 | |
| 104 | ||
| 105 | return substr($id, -8); | |
| 106 | } | |
| 107 | ||
| 108 | /** | |
| 109 | * Formats fingerprint string | |
| 110 | * | |
| 111 | * @param string Key fingerprint | |
| 112 | * | |
| 113 | * @return string Formatted fingerprint (with spaces) | |
| 114 | */ | |
| 115 | static function format_fingerprint($fingerprint) | |
| 116 | { | |
| 117 | if (!$fingerprint) | |
| 118 | return ''; | |
| 119 | ||
| 120 | $result = ''; | |
| 121 | for ($i=0; $i<40; $i++) { | |
| 122 | if ($i % 4 == 0) | |
| 123 | $result .= ' '; | |
| 124 | $result .= $fingerprint[$i]; | |
| 125 | } | |
| 126 | return $result; | |
| 127 | } | |
| 128 | ||
| 129 | } | |
