WooYun.org

/**
 * 过滤脚本代码
 * @param unknown $text
 * @return mixed
 */
function cleanJs($text) {
	$text = trim ( $text );
	$text = stripslashes ( $text );
	// 完全过滤注释
	$text = preg_replace ( '/<!--?.*-->/', '', $text );
	// 完全过滤动态代码
	$text = preg_replace ( '/<\?|\?>/', '', $text );
	// 完全过滤js
	$text = preg_replace ( '/<script?.*\/script>/', '', $text );
	// 过滤多余html
	$text = preg_replace ( '/<\/?(html|head|meta|link|base|body|title|style|script|form|iframe|frame|frameset)[^><]*>/i', '', $text );
	// 过滤on事件lang js
	while ( preg_match ( '/(<[^><]+)(lang|data|onfinish|onmouse|onexit|onerror|onclick|onkey|onload|onchange|onfocus|onblur)[^><]+/i', $text, $mat ) ) {
		$text = str_replace ( $mat [0], $mat [1], $text );
	}
	while ( preg_match ( '/(<[^><]+)(window\.|javascript:|js:|about:|file:|document\.|vbs:|cookie)([^><]*)/i', $text, $mat ) ) {
		$text = str_replace ( $mat [0], $mat [1] . $mat [3], $text );
	}
	return $text;
}
/**
 * 输入安全过滤
 * @param unknown $text
 * @return mixed
 */
function tsClean($text) {
	$text = cleanJs ( $text );
	return $text;
}