mirror of
https://github.com/joomla-extensions/jedchecker.git
synced 2024-12-24 03:15:26 +00:00
346 lines
8.6 KiB
PHP
346 lines
8.6 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 fasterjoomla.com. All rights reserved.
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* @author Riccardo Zorn <support@fasterjoomla.com>
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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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* JedcheckerRulesFramework
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*
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* @since 2014-02-23
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* Attempts to identify deprecated code, unsafe code, leftover stuff
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*/
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class JedcheckerRulesFramework 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 = 'Framework';
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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_FRAMEWORK';
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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_FRAMEWORK_DESC';
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protected $tests = false;
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protected $regex_leftover_folders;
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/**
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* Initiates the file search and check
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*
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* @return void
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*/
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public function check()
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{
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// Warn about code versioning files included
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$leftover_folders = $this->params->get('leftover_folders');
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$leftover_folders_whitelist = $this->params->get('leftover_folders_whitelist');
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$this->regex_leftover_folders = '';
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if (!empty($leftover_folders_whitelist))
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{
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$this->regex_leftover_folders .= '(?!(?:' . str_replace(array(',', '\*'), array('|', '.*'), preg_quote($leftover_folders_whitelist, '/')) . '))';
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}
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$this->regex_leftover_folders .= '(?:' . str_replace(array(',', '\*'), array('|', '.*'), preg_quote($leftover_folders, '/')) . ')';
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$regex_leftover_folders = '^' . $this->regex_leftover_folders . '$';
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// Get matched files and folder (w/o default exclusion list)
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$folders = JFolder::folders($this->basedir, $regex_leftover_folders, true, true, array(), array());
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$files = JFolder::files($this->basedir, $regex_leftover_folders, true, true, array(), array());
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if ($folders !== false)
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{
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// Warn on leftover folders found
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foreach ($folders as $folder)
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{
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$this->report->addWarning($folder, JText::_("COM_JEDCHECKER_ERROR_FRAMEWORK_LEFTOVER_FOLDER"));
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}
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}
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if ($files !== false)
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{
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// Warn on leftover files found
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foreach ($files as $file)
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{
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$this->report->addWarning($file, JText::_("COM_JEDCHECKER_ERROR_FRAMEWORK_LEFTOVER_FILE"));
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}
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}
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$files = JFolder::files($this->basedir, '\.php$', true, true);
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foreach ($files as $file)
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{
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if (!$this->excludeResource($file))
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{
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// Process the file
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if ($this->find($file))
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{
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// Error messages are set by find() based on the errors found.
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}
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}
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}
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}
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/**
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* Check if the given resource is inside of a leftover folder
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*
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* @param string $file The file name to test
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*
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* @return boolean
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*/
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private function excludeResource($file)
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{
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return (bool) preg_match('/\/' . $this->regex_leftover_folders . '\//', $file);
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}
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/**
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* reads a file and searches for any function defined in the params
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*
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* @param string $file The file name
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*
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* @return boolean True if the statement was found, otherwise False.
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*/
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protected function find($file)
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{
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$origContent = (array) file($file);
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if (count($origContent) === 0)
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{
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return false;
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}
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$cleanContent = preg_split("/(?:\r\n|\n|\r)(?!$)/", $this->cleanNonCode($file));
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$result = false;
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foreach ($this->getTests() as $testObject)
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{
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if ($this->runTest($file, $origContent, $cleanContent, $testObject))
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{
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$result = true;
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}
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}
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return $result;
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}
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/**
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* @param string $file
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*
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* @return string
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*/
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protected function cleanNonCode($file)
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{
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$content = file_get_contents($file);
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if (!preg_match('/<\?php\s/i', $content, $match, PREG_OFFSET_CAPTURE))
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{
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// No PHP code found
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return '';
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}
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$pos = $match[0][1];
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$cleanContent = $this->removeContent(substr($content, 0, $pos));
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while (preg_match('/(?:[\'"]|\/\*|\/\/|\?>)/', $content, $match, PREG_OFFSET_CAPTURE, $pos))
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{
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$foundPos = $match[0][1];
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$cleanContent .= substr($content, $pos, $foundPos - $pos);
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$pos = $foundPos;
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switch ($match[0][0])
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{
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case '"':
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case "'":
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$q = $match[0][0];
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if (!preg_match("/$q(?>[^$q\\\\]+|\\\\.)*$q/As", $content, $match, 0, $pos))
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{
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return $cleanContent . $q;
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}
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$cleanContent .= $q . $this->removeContent($match[0]) . $q;
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$pos += strlen($match[0]);
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break;
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case '/*':
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$cleanContent .= '/*';
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$pos += 2;
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$endPos = strpos($content, '*/', $pos);
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if ($endPos === false)
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{
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return $cleanContent;
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}
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$cleanContent .= $this->removeContent(substr($content, $pos, $endPos - $pos)) . '*/';
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$pos = $endPos + 2;
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break;
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case '//':
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$pos += strcspn($content, "\r\n", $pos);
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break;
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case '?>':
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$cleanContent .= '?>';
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$pos += 2;
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if (!preg_match('/<\?php\s/i', $content, $match, PREG_OFFSET_CAPTURE, $pos))
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{
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// No PHP code found (up to the end of the file)
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return $cleanContent;
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}
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$foundPos = $match[0][1];
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$cleanContent .= $this->removeContent(substr($content, $pos, $foundPos - $pos)) . $match[0][0];
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$pos = $foundPos + strlen($match[0][0]);
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break;
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}
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}
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return $cleanContent;
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}
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/**
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* Remove all text content by keeping newline characters only (to preserve line numbers)
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*
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* @param string $content
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*
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* @return string
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*/
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protected function removeContent($content)
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{
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return str_repeat("\n", substr_count($content, "\n"));
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}
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/**
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* runs tests and reports to the appropriate function if strings match.
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*
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* @param string $file The file name
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* @param array $origContent The file content
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* @param array $cleanContent The file content w/o non-code elements
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* @param object $testObject The test object generated by getTests()
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*
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* @return boolean
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*/
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private function runTest($file, $origContent, $cleanContent, $testObject)
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{
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// @todo remove as unused?
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$error_count = 0;
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foreach ($cleanContent as $line_number => $line)
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{
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$origLine = $origContent[$line_number];
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foreach ($testObject->tests as $singleTest)
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{
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$regex = preg_quote($singleTest, '/');
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// Add word boundary check for rules staring/ending with a letter (to avoid false-positives because of partial match)
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if (ctype_alpha($singleTest[0]))
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{
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$regex = '\b' . $regex;
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}
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if (ctype_alpha($singleTest[strlen($singleTest) - 1]))
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{
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$regex .= '\b';
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}
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if (preg_match('/' . $regex . '/i', $line))
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{
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$origLine = str_ireplace($singleTest, '<b>' . $singleTest . '</b>', htmlspecialchars($origLine));
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$error_message = JText::_('COM_JEDCHECKER_ERROR_FRAMEWORK_' . strtoupper($testObject->group)) . ':<pre>' . $origLine . '</pre>';
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switch ($testObject->kind)
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{
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case 'error':
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$this->report->addError($file, $error_message, $line_number);
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break;
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case 'warning':
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$this->report->addWarning($file, $error_message, $line_number);
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break;
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case 'compatibility':
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$this->report->addCompat($file, $error_message, $line_number);
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break;
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default:
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// Case 'notice':
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$this->report->addInfo($file, $error_message, $line_number);
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break;
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}
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}
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// If you scored 10 errors on a single file, that's enough for now.
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if ($error_count > 10)
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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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return $error_count > 0;
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}
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/**
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* Lazyloads the tests from the framework.ini params.
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* The whole structure depends on the file. The vars
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* error_groups, warning_groups, notice_groups, compatibility_groups
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* serve as lists of other rules, which are grouped and show a different error message per rule.
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* Please note: if you want to add more rules, simply do so in the .ini file
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* BUT MAKE SURE that you add the relevant key to the translation files:
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* COM_JEDCHECKER_ERROR_NOFRAMEWOR_SOMEKEY
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*
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* @return array
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*/
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private function getTests()
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{
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if (!$this->tests)
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{
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// Build the test array. Please read the comments in the framework.ini file
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$this->tests = array();
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$testNames = array('error','warning','notice','compatibility');
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foreach ($testNames as $test)
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{
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foreach (explode(",", $this->params->get($test . '_groups')) as $group)
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{
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$newTest = new stdClass;
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$newTest->group = $group;
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$newTest->kind = $test;
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$newTest->tests = explode(",", $this->params->get($group));
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$this->tests[] = $newTest;
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}
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}
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}
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return $this->tests;
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}
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}
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