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130 lines
3.6 KiB
PHP
130 lines
3.6 KiB
PHP
<?php
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/*
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+-------------------------------------------------------------------------+
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| Key class for the Enigma Plugin |
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| This program is free software; you can redistribute it and/or modify |
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| it under the terms of the GNU General Public License version 2 |
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| as published by the Free Software Foundation. |
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| This program is distributed in the hope that it will be useful, |
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| but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| GNU General Public License for more details. |
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| You should have received a copy of the GNU General Public License along |
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| with this program; if not, write to the Free Software Foundation, Inc., |
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| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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+-------------------------------------------------------------------------+
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| Author: Aleksander Machniak <alec@alec.pl> |
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+-------------------------------------------------------------------------+
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*/
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class enigma_key
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{
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public $id;
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public $name;
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public $users = array();
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public $subkeys = array();
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const TYPE_UNKNOWN = 0;
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const TYPE_KEYPAIR = 1;
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const TYPE_PUBLIC = 2;
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/**
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* Keys list sorting callback for usort()
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*/
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static function cmp($a, $b)
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{
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return strcmp($a->name, $b->name);
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}
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/**
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* Returns key type
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*/
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function get_type()
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{
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if ($this->subkeys[0]->has_private)
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return enigma_key::TYPE_KEYPAIR;
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else if (!empty($this->subkeys[0]))
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return enigma_key::TYPE_PUBLIC;
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return enigma_key::TYPE_UNKNOWN;
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}
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/**
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* Returns true if all user IDs are revoked
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*/
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function is_revoked()
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{
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foreach ($this->subkeys as $subkey)
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if (!$subkey->revoked)
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return false;
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return true;
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}
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/**
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* Returns true if any user ID is valid
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*/
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function is_valid()
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{
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foreach ($this->users as $user)
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if ($user->valid)
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return true;
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return false;
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}
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/**
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* Returns true if any of subkeys is not expired
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*/
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function is_expired()
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{
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$now = time();
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foreach ($this->subkeys as $subkey)
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if (!$subkey->expires || $subkey->expires > $now)
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return true;
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return false;
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}
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/**
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* Converts long ID or Fingerprint to short ID
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* Crypt_GPG uses internal, but e.g. Thunderbird's Enigmail displays short ID
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*
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* @param string Key ID or fingerprint
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* @return string Key short ID
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*/
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static function format_id($id)
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{
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// E.g. 04622F2089E037A5 => 89E037A5
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return substr($id, -8);
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}
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/**
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* Formats fingerprint string
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*
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* @param string Key fingerprint
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*
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* @return string Formatted fingerprint (with spaces)
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*/
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static function format_fingerprint($fingerprint)
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{
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if (!$fingerprint)
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return '';
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$result = '';
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for ($i=0; $i<40; $i++) {
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if ($i % 4 == 0)
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$result .= ' ';
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$result .= $fingerprint[$i];
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}
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return $result;
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}
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}
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