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79 lines
1.7 KiB
79 lines
1.7 KiB
<?php
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/*
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** Zabbix
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** Copyright (C) 2001-2023 Zabbix SIA
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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class CRegexValidator extends CValidator
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{
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/**
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* Error message if the is not a string.
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*
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* @var string
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*/
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public $messageInvalid;
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/**
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* Error message if the value is invalid
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*
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* @var string
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*/
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public $messageRegex;
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/**
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* Check if regular expression is valid
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*
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* @param string $value
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*
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* @return bool
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*/
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public function validate($value) {
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if (!is_string($value) && !is_numeric($value)) {
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$this->error($this->messageInvalid);
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return false;
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}
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// escape '/' since Zabbix server treats them as literal characters.
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$value = str_replace('/', '\/', $value);
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// validate through preg_match
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$error = false;
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set_error_handler(function ($errno, $errstr) use (&$error) {
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if ($errstr != '') {
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$error = $errstr;
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}
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});
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preg_match('/'.$value.'/', '');
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restore_error_handler();
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if ($error) {
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$this->error(
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$this->messageRegex,
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$value,
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str_replace('preg_match(): ', '', $error)
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);
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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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