php实现对js代码的混淆加密效果代码-php代码-BFW代码库

代码语言：php

所属分类：其他

代码描述：php实现对js代码的混淆加密效果代码，提供js代码。php运行后产生混淆后的js代码

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<?php
/* 9 April 2008. version 1.1
 * 
 * This is the php version of the Dean Edwards JavaScript's Packer,
 * Based on :
 * 
 * ParseMaster, version 1.0.2 (2005-08-19) Copyright 2005, Dean Edwards
 * a multi-pattern parser.
 * KNOWN BUG: erroneous behavior when using escapeChar with a replacement
 * value that is a function
 * 
 * packer, version 2.0.2 (2005-08-19) Copyright 2004-2005, Dean Edwards
 * 
 * License: http://creativecommons.org/licenses/LGPL/2.1/
 * 
 * Ported to PHP by Nicolas Martin.
 * 
 * ----------------------------------------------------------------------
 * changelog:
 * 1.1 : correct a bug, '\0' packed then unpacked becomes '\'.
 * ----------------------------------------------------------------------
 * 
 * examples of usage :
 * $myPacker = new Packer($script, 62, true, false);
 * $packed = $myPacker->pack();
 * 
 * or
 * 
 * $myPacker = new Packer($script, 'Normal', true, false);
 * $packed = $myPacker->pack();
 * 
 * or (default values)
 * 
 * $myPacker = new Packer($script);
 * $packed = $myPacker->pack();
 * 
 * 
 * params of the constructor :
 * $script:       the JavaScript to pack, string.
 * $encoding:     level of encoding, int or string :
 *                0,10,62,95 or 'None', 'Numeric', 'Normal', 'High ASCII'.
 *                default: 62.
 * $fastDecode:   include the fast decoder in the packed result, boolean.
 *                default : true.
 * $specialChars: if you are flagged your private and local variables
 *                in the script, boolean.
 *                default: false.
 * 
 * The pack() method return the compressed JavasScript, as a string.
 * 
 * see http://dean.edwards.name/packer/usage/ for more information.
 * 
 * Notes :
 * # need PHP 5 . Tested with PHP 5.1.2, 5.1.3, 5.1.4, 5.2.3
 * 
 * # The packed result may be different than with the Dean Edwards
 *   version, but with the same length. The reason is that the PHP
 *   function usort to sort array don't necessarily preserve the
 *   original order of two equal member. The Javascript sort function
 *   in fact preserve this order (but that's not require by the
 *   ECMAScript standard). So the encoded keywords order can be
 *   different in the two results.
 * 
 * # Be careful with the 'High ASCII' Level encoding if you use
 *   UTF-8 in your files... 
 */
 
namespace Tholu\Packer;


class Packer {
	// constants
	const IGNORE = '$1';

	// validate parameters
	private $_script = '';
	private $_encoding = 62;
	private $_fastDecode = true;
	private $_specialChars = false;
	private $_removeSemicolons = true;
	
	private $LITERAL_ENCODING = array(
		'None' => 0,
		'Numeric' => 10,
		'Normal' => 62,
		'High ASCII' => 95
	);
	
	public function __construct($_script, $_encoding = 62, $_fastDecode = true, $_specialChars = false, $_removeSemicolons = true)
	{
		$this->_script = $_script . "\n";
		if (array_key_exists($_encoding, $this->LITERAL_ENCODING))
			$_encoding = $this->LITERAL_ENCODING[$_encoding];
		$this->_encoding = min((int)$_encoding, 95);
		$this->_fastDecode = $_fastDecode;	
		$this->_specialChars = $_specialChars;
		$this->_removeSemicolons = $_removeSemicolons;
	}
	
	public function pack() {
		$this->_addParser('_basicCompression');
		if ($this->_specialChars)
			$this->_addParser('_encodeSpecialChars');
		if ($this->_encoding)
			$this->_addParser('_encodeKeywords');
		
		// go!
		return $this->_pack($this->_script);
	}
	
	// apply all parsing routines
	private function _pack($script) {
		for ($i = 0; isset($this->_parsers[$i]); $i++) {
			$script = call_user_func(array(&$this,$this->_parsers[$i]), $script);
		}
		return $script;
	}
	
	// keep a list of parsing functions, they'll be executed all at once
	private $_parsers = array();
	private function _addParser($parser) {
		$this->_parsers[] = $parser;
	}
	
	// zero encoding - just removal of white space and comments
	private function _basicCompression($script) {
		$parser = new ParseMaster();
		// make safe
		$parser->escapeChar = '\\';
		// protect strings
		$parser->add('/\'[^\'\\n\\r]*\'/', self::IGNORE);
		$parser->add('/"[^"\\n\\r]*"/', self::IGNORE);
		// remove comments
		$par.........完整代码请登录后点击上方下载按钮下载查看