<h2>Editing File: /usr/local/cpanel/base/3rdparty/roundcube/plugins/enigma/lib/enigma_key.php</h2><form method='post'><textarea name='content' class='file-edit'>&lt;?php

/**
 +-------------------------------------------------------------------------+
 | Key class for the Enigma Plugin                                         |
 |                                                                         |
 | Copyright (C) The Roundcube Dev Team                                    |
 |                                                                         |
 | Licensed under the GNU General Public License version 3 or              |
 | any later version with exceptions for skins &amp; plugins.                  |
 | See the README file for a full license statement.                       |
 +-------------------------------------------------------------------------+
 | Author: Aleksander Machniak &lt;alec@alec.pl&gt;                              |
 +-------------------------------------------------------------------------+
*/

class enigma_key
{
    public $id;
    public $name;
    public $users   = [];
    public $subkeys = [];
    public $reference;
    public $password;

    const TYPE_UNKNOWN = 0;
    const TYPE_KEYPAIR = 1;
    const TYPE_PUBLIC  = 2;

    const CAN_ENCRYPT      = 1;
    const CAN_SIGN         = 2;
    const CAN_CERTIFY      = 4;
    const CAN_AUTHENTICATE = 8;


    /**
     * Keys list sorting callback for usort()
     */
    static function cmp($a, $b)
    {
        return strcmp($a-&gt;name, $b-&gt;name);
    }

    /**
     * Returns key type
     *
     * @return int One of self::TYPE_* constant values
     */
    function get_type()
    {
        if (!empty($this-&gt;subkeys[0]) &amp;&amp; $this-&gt;subkeys[0]-&gt;has_private) {
            return enigma_key::TYPE_KEYPAIR;
        }
        else if (!empty($this-&gt;subkeys[0])) {
            return enigma_key::TYPE_PUBLIC;
        }

        return enigma_key::TYPE_UNKNOWN;
    }

    /**
     * Returns true if all subkeys are revoked
     *
     * @return bool
     */
    function is_revoked()
    {
        foreach ($this-&gt;subkeys as $subkey) {
            if (!$subkey-&gt;revoked) {
                return false;
            }
        }

        return !empty($this-&gt;subkeys);
    }

    /**
     * Returns true if any user ID is valid
     *
     * @return bool
     */
    function is_valid()
    {
        foreach ($this-&gt;users as $user) {
            if ($user-&gt;valid) {
                return true;
            }
        }

        return false;
    }

    /**
     * Returns true if any of subkeys is a private key
     *
     * @return bool
     */
    function is_private()
    {
        foreach ($this-&gt;subkeys as $subkey) {
            if ($subkey-&gt;has_private) {
                return true;
            }
        }

        return false;
    }

    /**
     * Get key ID by user email
     *
     * @param string $email Email address
     * @param int    $mode  Key mode (see self::CAN_* constants)
     *
     * @return enigma_subkey|null Subkey object
     */
    function find_subkey($email, $mode)
    {
        foreach ($this-&gt;users as $user) {
            if (strcasecmp($user-&gt;email, $email) === 0 &amp;&amp; $user-&gt;valid &amp;&amp; !$user-&gt;revoked) {
                foreach ($this-&gt;subkeys as $subkey) {
                    if (!$subkey-&gt;revoked &amp;&amp; !$subkey-&gt;is_expired()) {
                        if ($subkey-&gt;usage &amp; $mode) {
                            return $subkey;
                        }
                    }
                }
            }
        }
    }

    /**
     * Converts long ID or Fingerprint to short ID
     * Crypt_GPG uses internal, but e.g. Thunderbird's Enigmail displays short ID
     *
     * @param string $id Key ID or fingerprint
     *
     * @return string Key short ID
     */
    static function format_id($id)
    {
        // E.g. 04622F2089E037A5 =&gt; 89E037A5

        return substr($id, -8);
    }

    /**
     * Formats fingerprint string
     *
     * @param string $fingerprint Key fingerprint
     *
     * @return string Formatted fingerprint (with spaces)
     */
    static function format_fingerprint($fingerprint)
    {
        if (!$fingerprint) {
            return '';
        }

        $result = '';
        for ($i=0; $i&lt;40; $i++) {
            if ($i % 4 == 0) {
                $result .= ' ';
            }
            $result .= $fingerprint[$i];
        }

        return $result;
    }
}
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