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https://github.com/ezyang/htmlpurifier.git
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d1187ed331
- Make some AttrDef member-variables lazy-loading to save serialization space, clean up others - Refactor get*Definition() methods git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1116 48356398-32a2-884e-a903-53898d9a118a
42 lines
872 B
PHP
42 lines
872 B
PHP
<?php
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require_once 'HTMLPurifier/AttrDef.php';
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/**
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* Validates an IPv4 address
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* @author Feyd @ forums.devnetwork.net (public domain)
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*/
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class HTMLPurifier_AttrDef_URI_IPv4 extends HTMLPurifier_AttrDef
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{
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/**
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* IPv4 regex, protected so that IPv6 can reuse it
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* @protected
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*/
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var $ip4;
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function validate($aIP, $config, &$context) {
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if (!$this->ip4) $this->_loadRegex();
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if (preg_match('#^' . $this->ip4 . '$#s', $aIP))
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{
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return $aIP;
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}
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return false;
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}
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/**
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* Lazy load function to prevent regex from being stuffed in
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* cache.
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*/
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function _loadRegex() {
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$oct = '(?:25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])'; // 0-255
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$this->ip4 = "(?:{$oct}\\.{$oct}\\.{$oct}\\.{$oct})";
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}
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}
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?>
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