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<?php |
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/* |
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You may not change or alter any portion of this comment or credits |
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of supporting developers from this source code or any supporting source code |
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which is considered copyrighted (c) material of the original comment or credit authors. |
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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. |
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*/ |
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namespace Xoops\Core\Text\Sanitizer\Extensions; |
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use Xoops\Core\Text\Sanitizer; |
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use Xoops\Core\Text\Sanitizer\FilterAbstract; |
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/** |
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* TextSanitizer filter |
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* |
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* @category Sanitizer |
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* @package Xoops\Core\Text |
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* @author Taiwen Jiang <[email protected]> |
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* @copyright 2000-2015 XOOPS Project (http://xoops.org) |
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* @license GNU GPL 2 (http://www.gnu.org/licenses/gpl-2.0.html) |
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* @link http://xoops.org |
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*/ |
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class SyntaxHighlight extends FilterAbstract |
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{ |
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/** |
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* @var array default configuration values |
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*/ |
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protected static $defaultConfiguration = [ |
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'enabled' => false, |
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'highlighter' => 'php', // Source code highlight: '' - disable; 'php' - php highlight; 'geshi' - geshi highlight |
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'language' => 'PHP' |
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]; |
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/** |
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* apply syntax highlighting to a text string |
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* |
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* @param string $source source code text to highlight |
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* @param string $language of source code |
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* |
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* @return bool|mixed|string |
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*/ |
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public function applyFilter($source, $language = 'php') |
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{ |
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$config = $this->config; |
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if (empty($config['highlighter'])) { |
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return "<pre>{$source}</pre>"; |
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} |
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$source = $this->ts->undoHtmlSpecialChars($source); |
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$source = stripslashes($source); |
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if ($config['highlighter'] === 'geshi') { |
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$language = str_replace('=', '', $language); |
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$language = ($language) ? $language : $config['language']; |
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$language = strtolower($language); |
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if ($source2 = SyntaxHighlight::geshi($source, $language)) { |
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return $source2; |
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} |
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} |
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$source = SyntaxHighlight::php($source); |
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return $source; |
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} |
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/** |
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* apply PHP highlight_string |
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* |
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* @param string $text source string |
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* |
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* @return string |
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*/ |
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public function php($text) |
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{ |
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$text = trim($text); |
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$addedOpenTag = false; |
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if (!strpos($text, "<?php") && (substr($text, 0, 5) !== "<?php")) { |
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$text = "<?php " . $text; |
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$addedOpenTag = true; |
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} |
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$oldlevel = error_reporting(0); |
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//There is a bug in the highlight function(php < 5.3) that it doesn't render |
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//backslashes properly like in \s. So here we replace any backslashes |
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$text = str_replace("\\", "XxxX", $text); |
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$buffer = highlight_string($text, true); // Require PHP 4.20+ |
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//Placing backspaces back again |
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$buffer = str_replace("XxxX", "\\", $buffer); |
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error_reporting($oldlevel); |
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$pos_open = $pos_close = 0; |
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if ($addedOpenTag) { |
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$pos_open = strpos($buffer, '<?php '); |
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} |
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$str_open = ($addedOpenTag) ? substr($buffer, 0, $pos_open) : ""; |
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$length_open = ($addedOpenTag) ? $pos_open + 14 : 0; |
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$str_internal = substr($buffer, $length_open); |
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$buffer = $str_open . $str_internal; |
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return $buffer; |
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} |
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/** |
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* apply geshi highlighting |
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* |
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* @param string $source source code text to highlight |
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* @param string $language of source code |
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* |
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* @return bool |
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*/ |
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public function geshi($source, $language) |
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{ |
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if (!@\XoopsLoad::load("geshi", "framework")) { |
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return false; |
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} |
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// Create the new XoopsGeshi object, passing relevant stuff |
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// XoopsGeshi should be extending geSHi in Frameworks/geshi/xoopsgeshi.php |
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$geshi = new XoopsGeshi($source, $language); |
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// Enclose the code in a <div> |
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$geshi->set_header_type(GESHI_HEADER_NONE); |
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// Sets the proper encoding charset other than "ISO-8859-1" |
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$geshi->set_encoding(\XoopsLocale::getCharset()); |
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$geshi->set_link_target("_blank"); |
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// Parse the code |
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$code = $geshi->parse_code(); |
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return $code; |
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} |
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} |
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XOOPS /
XoopsCore
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