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101 lines
2.9 KiB
PHP
101 lines
2.9 KiB
PHP
<?php
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/**
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* Clean.php
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*
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* -Description-
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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 3 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, see <http://www.gnu.org/licenses/>.
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*
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* @package LibreNMS
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* @link http://librenms.org
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* @copyright 2019 Tony Murray
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* @author Tony Murray <murraytony@gmail.com>
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*/
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namespace LibreNMS\Util;
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use HTMLPurifier;
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use HTMLPurifier_Config;
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use LibreNMS\Config;
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class Clean
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{
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/**
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* Sanitize file name by removing all invalid characters.
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* Does not make the string safe for javascript or sql!
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*
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* @param string $file
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* @return string|string[]|null
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*/
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public static function fileName($file)
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{
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return preg_replace('/[^a-zA-Z0-9\-._]/', '', $file);
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}
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/**
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* Sanitize string to only contain alpha, numeric, dashes, and underscores
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*
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* @param string $string
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* @return string
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*/
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public static function alphaDash($string)
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{
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return preg_replace('/[^a-zA-Z0-9\-_]/', '', $string);
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}
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/**
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* Sanitize string to only contain alpha, numeric, dashes, underscores, and spaces
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*
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* @param string $string
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* @return string
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*/
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public static function alphaDashSpace($string)
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{
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return preg_replace('/[^a-zA-Z0-9\-_ ]/', '', $string);
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}
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/**
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* Clean a string for display in an html page.
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* For use in non-blade pages
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*
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* @param $value
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* @param array $purifier_config (key, value pair)
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* @return string
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*/
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public static function html($value, $purifier_config = [])
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{
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/** @var HTMLPurifier $purifier */
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static $purifier;
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// If $purifier_config is non-empty then we don't want
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// to convert html tags and allow these to be controlled
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// by purifier instead.
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if (empty($purifier_config)) {
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$value = htmlentities($value);
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}
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if (!isset($purifier)) {
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// initialize HTML Purifier here since this is the only user
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$p_config = HTMLPurifier_Config::createDefault();
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$p_config->set('Cache.SerializerPath', Config::get('temp_dir', '/tmp'));
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foreach ($purifier_config as $k => $v) {
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$p_config->set($k, $v);
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}
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$purifier = new HTMLPurifier($p_config);
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}
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return $purifier->purify(stripslashes($value));
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}
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}
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