mirror of
https://github.com/elyby/oauth2-server.git
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40 lines
1.2 KiB
PHP
40 lines
1.2 KiB
PHP
<?php
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/**
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* OAuth 2.0 Secure key generator
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*
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* @package league/oauth2-server
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* @author Alex Bilbie <hello@alexbilbie.com>
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* @copyright Copyright (c) Alex Bilbie
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* @license http://mit-license.org/
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* @link https://github.com/thephpleague/oauth2-server
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*/
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namespace League\OAuth2\Server\Util;
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/**
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* SecureKey class
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*/
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class SecureKey
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{
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/**
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* Generate a new unique code
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* @param integer $len Length of the generated code
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* @return string
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*/
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public static function make($len = 40)
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{
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// We generate twice as many bytes here because we want to ensure we have
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// enough after we base64 encode it to get the length we need because we
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// take out the "/", "+", and "=" characters.
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$bytes = openssl_random_pseudo_bytes($len * 2, $strong);
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// We want to stop execution if the key fails because, well, that is bad.
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if ($bytes === false || $strong === false) {
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// @codeCoverageIgnoreStart
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throw new \Exception('Error Generating Key');
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// @codeCoverageIgnoreEnd
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}
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return substr(str_replace(array('/', '+', '='), '', base64_encode($bytes)), 0, $len);
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}
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} |