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Email.php
(343 B)
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Host.php
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IPv4.php
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IPv6.php
(2.42 KB)
Editing: IPv4.php
<?php /** * Validates an IPv4 address * @author Feyd @ forums.devnetwork.net (public domain) */ class HTMLPurifier_AttrDef_URI_IPv4 extends HTMLPurifier_AttrDef { /** * IPv4 regex, protected so that IPv6 can reuse it. * @type string */ protected $ip4; /** * @param string $aIP * @param HTMLPurifier_Config $config * @param HTMLPurifier_Context $context * @return bool|string */ public function validate($aIP, $config, $context) { if (!$this->ip4) { $this->_loadRegex(); } if (preg_match('#^' . $this->ip4 . '$#s', $aIP)) { return $aIP; } return false; } /** * Lazy load function to prevent regex from being stuffed in * cache. */ protected function _loadRegex() { $oct = '(?:25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])'; // 0-255 $this->ip4 = "(?:{$oct}\\.{$oct}\\.{$oct}\\.{$oct})"; } } // vim: et sw=4 sts=4
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