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117 lines
3.5 KiB
117 lines
3.5 KiB
<?php
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// +---------------------------------------------------------------------------+
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// | This file is part of the core package. |
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// | Copyright (c) laiketui.com |
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// | |
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// | For the full copyright and license information, please view the LICENSE |
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// | file that was distributed with this source code. You can also view the |
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// | LICENSE file online at http://www.laiketui.com |
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// +---------------------------------------------------------------------------+
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/**
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* RegexValidator allows you to match a value against a regular expression
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* pattern.
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*
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* <b>Required parameters:</b>
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*
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* # <b>pattern</b> - [none] - A PCRE, preg_match() style regular expression
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* pattern.
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*
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* <b>Optional parameters:</b>
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*
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* # <b>match</b> - [true] - Indicates that the pattern must be
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* matched or must not match.
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* # <b>match_error</b> - [Invalid input] - An error message to use when the
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* input does not meet the regex
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* specifications.
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*
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* @package laiketui
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* @subpackage validator
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*
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* @author ketter (ketter@laiketui.com)
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* @since 3.0.0
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*/
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class RegexValidator extends Validator
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{
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// +-----------------------------------------------------------------------+
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// | METHODS |
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// +-----------------------------------------------------------------------+
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/**
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* Execute this validator.
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*
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* @param string A parameter value.
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* @param string An error message reference.
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*
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* @return bool true, if this validator executes successfully, otherwise
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* false.
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*
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* @author ketter (ketter@laiketui.com)
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* @since 3.0.0
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*/
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public function execute (&$value, &$error)
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{
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$match = $this->getParameter('match');
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$pattern = $this->getParameter('pattern');
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if (($match && !preg_match($pattern, $value)) ||
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(!$match && preg_match($pattern, $value)))
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{
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$error = $this->getParameter('match_error');
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return false;
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}
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return true;
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}
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// -------------------------------------------------------------------------
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/**
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* Initialize this validator.
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*
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* @param Context The current application context.
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* @param array An associative array of initialization parameters.
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*
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* @return bool true, if initialization completes successfully, otherwise
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* false.
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*
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* @author ketter (ketter@laiketui.com)
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* @since 3.0.0
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*/
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public function initialize ($context, $parameters = null)
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{
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// set defaults
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$this->setParameter('match', true);
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$this->setParameter('match_error', 'Invalid input');
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$this->setParameter('pattern', null);
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// initialize parent
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parent::initialize($context, $parameters);
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// check parameters
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if ($this->getParameter('pattern') == null)
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{
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// no pattern specified
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$error = 'Please specify a PCRE regular expression pattern for ' .
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'your registered RegexValidator';
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throw new ValidatorException($error);
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}
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return true;
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}
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}
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?>
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