Daniel Ziegenberg
be7f6d4834
Prior to this change, all the line endings in the imported HTMLPurifier library were using CRLF (\r\n aka Windows style), but the HTMLPurifier source and also the downloadable artefacts use LF (\n aka Linux style) as line endings. This has been the case since510d190382when with the commit "MDL-38672 import HTML Purifier 4.5.0" all line endings were changed from LF to CRLF. There was no comment in the commit on why this change was done. As the original source uses LF, this commit partly reverts510d190382and goes back to LF as line endings. Signed-off-by: Daniel Ziegenberg <daniel@ziegenberg.at>
46 lines
998 B
PHP
46 lines
998 B
PHP
<?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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* @type string
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*/
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protected $ip4;
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/**
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* @param string $aIP
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* @param HTMLPurifier_Config $config
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* @param HTMLPurifier_Context $context
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* @return bool|string
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*/
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public function validate($aIP, $config, $context)
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{
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if (!$this->ip4) {
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$this->_loadRegex();
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}
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if (preg_match('#^' . $this->ip4 . '$#s', $aIP)) {
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return $aIP;
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}
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return false;
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}
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/**
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* Lazy load function to prevent regex from being stuffed in
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* cache.
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*/
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protected function _loadRegex()
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{
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$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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// vim: et sw=4 sts=4
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