--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/pear/crypt_gpg/Crypt/GPG/SubKey.php	Thu Jan 04 15:50:29 2018 -0500
@@ -0,0 +1,715 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Contains a class representing GPG sub-keys and constants for GPG algorithms
+ *
+ * PHP version 5
+ *
+ * LICENSE:
+ *
+ * This library 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.
+ *
+ * This library 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 library; if not, see
+ * <http://www.gnu.org/licenses/>
+ *
+ * @category  Encryption
+ * @package   Crypt_GPG
+ * @author    Michael Gauthier <mike@silverorange.com>
+ * @author    Nathan Fredrickson <nathan@silverorange.com>
+ * @copyright 2005-2010 silverorange
+ * @license   http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
+ * @link      http://pear.php.net/package/Crypt_GPG
+ */
+
+// {{{ class Crypt_GPG_SubKey
+
+/**
+ * A class for GPG sub-key information
+ *
+ * This class is used to store the results of the {@link Crypt_GPG::getKeys()}
+ * method. Sub-key objects are members of a {@link Crypt_GPG_Key} object.
+ *
+ * @category  Encryption
+ * @package   Crypt_GPG
+ * @author    Michael Gauthier <mike@silverorange.com>
+ * @author    Nathan Fredrickson <nathan@silverorange.com>
+ * @copyright 2005-2010 silverorange
+ * @license   http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
+ * @link      http://pear.php.net/package/Crypt_GPG
+ * @see       Crypt_GPG::getKeys()
+ * @see       Crypt_GPG_Key::getSubKeys()
+ */
+class Crypt_GPG_SubKey
+{
+    // {{{ algorithm class constants
+
+    /**
+     * RSA encryption algorithm.
+     */
+    const ALGORITHM_RSA = 1;
+
+    /**
+     * Elgamal encryption algorithm (encryption only).
+     */
+    const ALGORITHM_ELGAMAL_ENC = 16;
+
+    /**
+     * DSA encryption algorithm (sometimes called DH, sign only).
+     */
+    const ALGORITHM_DSA = 17;
+
+    /**
+     * Elgamal encryption algorithm (signage and encryption - should not be
+     * used).
+     */
+    const ALGORITHM_ELGAMAL_ENC_SGN = 20;
+
+    // }}}
+    // {{{ usage class constants
+
+    /**
+     * Key can be used to encrypt
+     */
+    const USAGE_ENCRYPT = 1;
+
+    /**
+     * Key can be used to sign
+     */
+    const USAGE_SIGN = 2;
+
+    /**
+     * Key can be used to certify other keys
+     */
+    const USAGE_CERTIFY = 4;
+
+    /**
+     * Key can be used for authentication
+     */
+    const USAGE_AUTHENTICATION = 8;
+
+    // }}}
+    // {{{ class properties
+
+    /**
+     * The id of this sub-key
+     *
+     * @var string
+     */
+    private $_id = '';
+
+    /**
+     * The algorithm used to create this sub-key
+     *
+     * The value is one of the Crypt_GPG_SubKey::ALGORITHM_* constants.
+     *
+     * @var integer
+     */
+    private $_algorithm = 0;
+
+    /**
+     * The fingerprint of this sub-key
+     *
+     * @var string
+     */
+    private $_fingerprint = '';
+
+    /**
+     * Length of this sub-key in bits
+     *
+     * @var integer
+     */
+    private $_length = 0;
+
+    /**
+     * Date this sub-key was created
+     *
+     * This is a Unix timestamp.
+     *
+     * @var integer
+     */
+    private $_creationDate = 0;
+
+    /**
+     * Date this sub-key expires
+     *
+     * This is a Unix timestamp. If this sub-key does not expire, this will be
+     * zero.
+     *
+     * @var integer
+     */
+    private $_expirationDate = 0;
+
+    /**
+     * Contains usage flags of this sub-key
+     *
+     * @var int
+     */
+    private $_usage = 0;
+
+    /**
+     * Whether or not the private key for this sub-key exists in the keyring
+     *
+     * @var boolean
+     */
+    private $_hasPrivate = false;
+
+    /**
+     * Whether or not this sub-key is revoked
+     *
+     * @var boolean
+     */
+    private $_isRevoked = false;
+
+    // }}}
+    // {{{ __construct()
+
+    /**
+     * Creates a new sub-key object
+     *
+     * Sub-keys can be initialized from an array of named values. Available
+     * names are:
+     *
+     * - <kbd>string  id</kbd>          - the key id of the sub-key.
+     * - <kbd>integer algorithm</kbd>   - the encryption algorithm of the
+     *                                    sub-key.
+     * - <kbd>string  fingerprint</kbd> - the fingerprint of the sub-key. The
+     *                                    fingerprint should not contain
+     *                                    formatting characters.
+     * - <kbd>integer length</kbd>      - the length of the sub-key in bits.
+     * - <kbd>integer creation</kbd>    - the date the sub-key was created.
+     *                                    This is a UNIX timestamp.
+     * - <kbd>integer expiration</kbd>  - the date the sub-key expires. This
+     *                                    is a UNIX timestamp. If the sub-key
+     *                                    does not expire, use 0.
+     * - <kbd>boolean canSign</kbd>     - whether or not the sub-key can be
+     *                                    used to sign data.
+     * - <kbd>boolean canEncrypt</kbd>  - whether or not the sub-key can be
+     *                                    used to encrypt data.
+     * - <kbd>integer usage</kbd>       - the sub-key usage flags
+     * - <kbd>boolean hasPrivate</kbd>  - whether or not the private key for
+     *                                    the sub-key exists in the keyring.
+     * - <kbd>boolean isRevoked</kbd>   - whether or not this sub-key is
+     *                                    revoked.
+     *
+     * @param Crypt_GPG_SubKey|string|array $key optional. Either an existing
+     *        sub-key object, which is copied; a sub-key string, which is
+     *        parsed; or an array of initial values.
+     */
+    public function __construct($key = null)
+    {
+        // parse from string
+        if (is_string($key)) {
+            $key = self::parse($key);
+        }
+
+        // copy from object
+        if ($key instanceof Crypt_GPG_SubKey) {
+            $this->_id             = $key->_id;
+            $this->_algorithm      = $key->_algorithm;
+            $this->_fingerprint    = $key->_fingerprint;
+            $this->_length         = $key->_length;
+            $this->_creationDate   = $key->_creationDate;
+            $this->_expirationDate = $key->_expirationDate;
+            $this->_usage          = $key->_usage;
+            $this->_hasPrivate     = $key->_hasPrivate;
+            $this->_isRevoked      = $key->_isRevoked;
+        }
+
+        // initialize from array
+        if (is_array($key)) {
+            if (array_key_exists('id', $key)) {
+                $this->setId($key['id']);
+            }
+
+            if (array_key_exists('algorithm', $key)) {
+                $this->setAlgorithm($key['algorithm']);
+            }
+
+            if (array_key_exists('fingerprint', $key)) {
+                $this->setFingerprint($key['fingerprint']);
+            }
+
+            if (array_key_exists('length', $key)) {
+                $this->setLength($key['length']);
+            }
+
+            if (array_key_exists('creation', $key)) {
+                $this->setCreationDate($key['creation']);
+            }
+
+            if (array_key_exists('expiration', $key)) {
+                $this->setExpirationDate($key['expiration']);
+            }
+
+            if (array_key_exists('usage', $key)) {
+                $this->setUsage($key['usage']);
+            }
+
+            if (array_key_exists('canSign', $key)) {
+                $this->setCanSign($key['canSign']);
+            }
+
+            if (array_key_exists('canEncrypt', $key)) {
+                $this->setCanEncrypt($key['canEncrypt']);
+            }
+
+            if (array_key_exists('hasPrivate', $key)) {
+                $this->setHasPrivate($key['hasPrivate']);
+            }
+
+            if (array_key_exists('isRevoked', $key)) {
+                $this->setRevoked($key['isRevoked']);
+            }
+        }
+    }
+
+    // }}}
+    // {{{ getId()
+
+    /**
+     * Gets the id of this sub-key
+     *
+     * @return string the id of this sub-key.
+     */
+    public function getId()
+    {
+        return $this->_id;
+    }
+
+    // }}}
+    // {{{ getAlgorithm()
+
+    /**
+     * Gets the algorithm used by this sub-key
+     *
+     * The algorithm should be one of the Crypt_GPG_SubKey::ALGORITHM_*
+     * constants.
+     *
+     * @return integer the algorithm used by this sub-key.
+     */
+    public function getAlgorithm()
+    {
+        return $this->_algorithm;
+    }
+
+    // }}}
+    // {{{ getCreationDate()
+
+    /**
+     * Gets the creation date of this sub-key
+     *
+     * This is a Unix timestamp.
+     *
+     * @return integer the creation date of this sub-key.
+     */
+    public function getCreationDate()
+    {
+        return $this->_creationDate;
+    }
+
+    // }}}
+    // {{{ getExpirationDate()
+
+    /**
+     * Gets the date this sub-key expires
+     *
+     * This is a Unix timestamp. If this sub-key does not expire, this will be
+     * zero.
+     *
+     * @return integer the date this sub-key expires.
+     */
+    public function getExpirationDate()
+    {
+        return $this->_expirationDate;
+    }
+
+    // }}}
+    // {{{ getFingerprint()
+
+    /**
+     * Gets the fingerprint of this sub-key
+     *
+     * @return string the fingerprint of this sub-key.
+     */
+    public function getFingerprint()
+    {
+        return $this->_fingerprint;
+    }
+
+    // }}}
+    // {{{ getLength()
+
+    /**
+     * Gets the length of this sub-key in bits
+     *
+     * @return integer the length of this sub-key in bits.
+     */
+    public function getLength()
+    {
+        return $this->_length;
+    }
+
+    // }}}
+    // {{{ canSign()
+
+    /**
+     * Gets whether or not this sub-key can sign data
+     *
+     * @return boolean true if this sub-key can sign data and false if this
+     *                 sub-key can not sign data.
+     */
+    public function canSign()
+    {
+        return ($this->_usage & self::USAGE_SIGN) != 0;
+    }
+
+    // }}}
+    // {{{ canEncrypt()
+
+    /**
+     * Gets whether or not this sub-key can encrypt data
+     *
+     * @return boolean true if this sub-key can encrypt data and false if this
+     *                 sub-key can not encrypt data.
+     */
+    public function canEncrypt()
+    {
+        return ($this->_usage & self::USAGE_ENCRYPT) != 0;
+    }
+
+    // }}}
+    // {{{ usage()
+
+    /**
+     * Gets usage flags of this sub-key
+     *
+     * @return int Sum of usage flags
+     */
+    public function usage()
+    {
+        return $this->_usage;
+    }
+
+    // }}}
+    // {{{ hasPrivate()
+
+    /**
+     * Gets whether or not the private key for this sub-key exists in the
+     * keyring
+     *
+     * @return boolean true the private key for this sub-key exists in the
+     *                 keyring and false if it does not.
+     */
+    public function hasPrivate()
+    {
+        return $this->_hasPrivate;
+    }
+
+    // }}}
+    // {{{ isRevoked()
+
+    /**
+     * Gets whether or not this sub-key is revoked
+     *
+     * @return boolean true if this sub-key is revoked and false if it is not.
+     */
+    public function isRevoked()
+    {
+        return $this->_isRevoked;
+    }
+
+    // }}}
+    // {{{ setCreationDate()
+
+    /**
+     * Sets the creation date of this sub-key
+     *
+     * The creation date is a Unix timestamp.
+     *
+     * @param integer $creationDate the creation date of this sub-key.
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setCreationDate($creationDate)
+    {
+        $this->_creationDate = intval($creationDate);
+        return $this;
+    }
+
+    // }}}
+    // {{{ setExpirationDate()
+
+    /**
+     * Sets the expiration date of this sub-key
+     *
+     * The expiration date is a Unix timestamp. Specify zero if this sub-key
+     * does not expire.
+     *
+     * @param integer $expirationDate the expiration date of this sub-key.
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setExpirationDate($expirationDate)
+    {
+        $this->_expirationDate = intval($expirationDate);
+        return $this;
+    }
+
+    // }}}
+    // {{{ setId()
+
+    /**
+     * Sets the id of this sub-key
+     *
+     * @param string $id the id of this sub-key.
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setId($id)
+    {
+        $this->_id = strval($id);
+        return $this;
+    }
+
+    // }}}
+    // {{{ setAlgorithm()
+
+    /**
+     * Sets the algorithm used by this sub-key
+     *
+     * @param integer $algorithm the algorithm used by this sub-key.
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setAlgorithm($algorithm)
+    {
+        $this->_algorithm = intval($algorithm);
+        return $this;
+    }
+
+    // }}}
+    // {{{ setFingerprint()
+
+    /**
+     * Sets the fingerprint of this sub-key
+     *
+     * @param string $fingerprint the fingerprint of this sub-key.
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setFingerprint($fingerprint)
+    {
+        $this->_fingerprint = strval($fingerprint);
+        return $this;
+    }
+
+    // }}}
+    // {{{ setLength()
+
+    /**
+     * Sets the length of this sub-key in bits
+     *
+     * @param integer $length the length of this sub-key in bits.
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setLength($length)
+    {
+        $this->_length = intval($length);
+        return $this;
+    }
+
+    // }}}
+    // {{{ setCanSign()
+
+    /**
+     * Sets whether or not this sub-key can sign data
+     *
+     * @param boolean $canSign true if this sub-key can sign data and false if
+     *                         it can not.
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setCanSign($canSign)
+    {
+        if ($canSign) {
+            $this->_usage |= self::USAGE_SIGN;
+        } else {
+            $this->_usage &= ~self::USAGE_SIGN;
+        }
+
+        return $this;
+    }
+
+    // }}}
+    // {{{ setCanEncrypt()
+
+    /**
+     * Sets whether or not this sub-key can encrypt data
+     *
+     * @param boolean $canEncrypt true if this sub-key can encrypt data and
+     *                            false if it can not.
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setCanEncrypt($canEncrypt)
+    {
+        if ($canEncrypt) {
+            $this->_usage |= self::USAGE_ENCRYPT;
+        } else {
+            $this->_usage &= ~self::USAGE_ENCRYPT;
+        }
+
+        return $this;
+    }
+
+    // }}}
+    // {{{ setUsage()
+
+    /**
+     * Sets usage flags of the sub-key
+     *
+     * @param integer $usage Usage flags
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setUsage($usage)
+    {
+        $this->_usage = (int) $usage;
+        return $this;
+    }
+
+    // }}}
+    // {{{ setHasPrivate()
+
+    /**
+     * Sets whether of not the private key for this sub-key exists in the
+     * keyring
+     *
+     * @param boolean $hasPrivate true if the private key for this sub-key
+     *                            exists in the keyring and false if it does
+     *                            not.
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setHasPrivate($hasPrivate)
+    {
+        $this->_hasPrivate = ($hasPrivate) ? true : false;
+        return $this;
+    }
+
+    // }}}
+    // {{{ setRevoked()
+
+    /**
+     * Sets whether or not this sub-key is revoked
+     *
+     * @param boolean $isRevoked whether or not this sub-key is revoked.
+     *
+     * @return Crypt_GPG_SubKey the current object, for fluent interface.
+     */
+    public function setRevoked($isRevoked)
+    {
+        $this->_isRevoked = ($isRevoked) ? true : false;
+        return $this;
+    }
+
+    // }}}
+    // {{{ parse()
+
+    /**
+     * Parses a sub-key object from a sub-key string
+     *
+     * See <b>doc/DETAILS</b> in the
+     * {@link http://www.gnupg.org/download/ GPG distribution} for information
+     * on how the sub-key string is parsed.
+     *
+     * @param string $string the string containing the sub-key.
+     *
+     * @return Crypt_GPG_SubKey the sub-key object parsed from the string.
+     */
+    public static function parse($string)
+    {
+        $tokens = explode(':', $string);
+
+        $subKey = new Crypt_GPG_SubKey();
+
+        $subKey->setId($tokens[4]);
+        $subKey->setLength($tokens[2]);
+        $subKey->setAlgorithm($tokens[3]);
+        $subKey->setCreationDate(self::_parseDate($tokens[5]));
+        $subKey->setExpirationDate(self::_parseDate($tokens[6]));
+
+        if ($tokens[1] == 'r') {
+            $subKey->setRevoked(true);
+        }
+
+        $usage = 0;
+        $usage_map = array(
+            'a' => self::USAGE_AUTHENTICATION,
+            'c' => self::USAGE_CERTIFY,
+            'e' => self::USAGE_ENCRYPT,
+            's' => self::USAGE_SIGN,
+        );
+
+        foreach ($usage_map as $key => $flag) {
+            if (strpos($tokens[11], $key) !== false) {
+                $usage |= $flag;
+            }
+        }
+
+        $subKey->setUsage($usage);
+
+        return $subKey;
+    }
+
+    // }}}
+    // {{{ _parseDate()
+
+    /**
+     * Parses a date string as provided by GPG into a UNIX timestamp
+     *
+     * @param string $string the date string.
+     *
+     * @return integer the UNIX timestamp corresponding to the provided date
+     *                 string.
+     */
+    private static function _parseDate($string)
+    {
+        if ($string == '') {
+            $timestamp = 0;
+        } else {
+            // all times are in UTC according to GPG documentation
+            $timeZone = new DateTimeZone('UTC');
+
+            if (strpos($string, 'T') === false) {
+                // interpret as UNIX timestamp
+                $string = '@' . $string;
+            }
+
+            $date = new DateTime($string, $timeZone);
+
+            // convert to UNIX timestamp
+            $timestamp = intval($date->format('U'));
+        }
+
+        return $timestamp;
+    }
+
+    // }}}
+}
+
+// }}}
+
+?>