mirror of
https://github.com/joomla-extensions/jedchecker.git
synced 2024-11-12 00:06:27 +00:00
131 lines
2.8 KiB
PHP
131 lines
2.8 KiB
PHP
<?php
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/**
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* @package Joomla.JEDChecker
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*
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* @copyright Copyright (C) 2017 - 2019 Open Source Matters, Inc. All rights reserved.
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* Copyright (C) 2008 - 2016 compojoom.com . All rights reserved.
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* @author Daniel Dimitrov <daniel@compojoom.com>
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* eaxs <support@projectfork.net>
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*
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* @license GNU General Public License version 2 or later; see LICENSE.txt
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*/
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defined('_JEXEC') or die('Restricted access');
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// Include the rule base class
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require_once JPATH_COMPONENT_ADMINISTRATOR . '/models/rule.php';
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/**
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* class JedcheckerRulesJexec
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*
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* This class searches all files for the _JEXEC check
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* which prevents direct file access.
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*
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* @since 1.0
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*/
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class JedcheckerRulesJexec extends JEDcheckerRule
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{
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/**
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* The formal ID of this rule. For example: SE1.
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*
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* @var string
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*/
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protected $id = 'PH2';
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/**
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* The title or caption of this rule.
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*
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* @var string
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*/
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protected $title = 'COM_JEDCHECKER_RULE_PH2';
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/**
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* The description of this rule.
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*
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* @var string
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*/
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protected $description = 'COM_JEDCHECKER_RULE_PH2_DESC';
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/**
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* Regexp to match _JEXEC-like guard
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*
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* @var string
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*/
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protected $regex;
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/**
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* Initiates the file search and check
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*
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* @return void
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*/
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public function check()
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{
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$this->init_jexec();
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// Find all php files of the extension
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$files = JFolder::files($this->basedir, '\.php$', true, true);
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// Iterate through all files
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foreach ($files as $file)
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{
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// Try to find the _JEXEC check in the file
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if (!$this->find($file))
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{
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// Add as error to the report if it was not found
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$this->report->addError($file, JText::_('COM_JEDCHECKER_ERROR_JEXEC_NOT_FOUND'));
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}
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}
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}
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/**
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* Reads a file and searches for the _JEXEC statement
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*
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* @param string $file - The path to the file
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*
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* @return boolean True if the statement was found, otherwise False.
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*/
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protected function find($file)
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{
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// load file and strip comments
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$content = php_strip_whitespace($file);
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// skip empty files
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if ($content === '' || preg_match('#^<\?php\s+$#', $content))
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{
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return true;
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}
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// check guards
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if (preg_match($this->regex, $content))
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{
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return true;
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}
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return false;
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}
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/**
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* Prepare regexp aforehand
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*
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* @return void
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*/
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protected function init_jexec()
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{
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$defines = $this->params->get('constants');
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$defines = explode(',', $defines);
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foreach ($defines as $i => $define)
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{
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$defines[$i] = preg_quote(trim($define), '#');
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}
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$this->regex
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= '#^' // at the beginning of the file
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. '<\?php\s+' // there is an opening php tag
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. 'defined ?\( ?' // followed by defined test
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. '([\'"])(?:' . implode('|', $defines) . ')\1' // of any of given constant
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. ' ?\) ?(?:or |\|\| ?)(?:die|exit)\b' // or exit
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. '#i'; // (case insensitive)
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}
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}
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