+ − <?php
+ −
+ − /*
+ − * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
+ − * Version 1.1.6 (Caoineag beta 1)
+ − * Copyright (C) 2006-2008 Dan Fuhry
+ − * Javascript compression library - used to compact the client-side Javascript code (all 72KB of it!) to save some bandwidth
+ − *
+ − * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
+ − * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
+ − *
+ − * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+ − * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
+ − *
+ − * This class was written by Andrea Giammarchi and was downloaded from PHPClasses.org. The information page stated that
+ − * this class is licensed under the GNU General Public License, the terms of which can be found by reading the file
+ − * "GPL" included with the Enano package.
+ − */
+ −
+ − /**
+ − * JavaScriptCompressor class,
+ − * removes comments or pack JavaScript source[s] code.
+ − * ______________________________________________________________
+ − * JavaScriptCompressor (just 2 public methods)
+ − * |
+ − * |________ getClean(jsSource:mixed):string
+ − * | returns one or more JavaScript code without comments,
+ − * | by default removes some spaces too
+ − * |
+ − * |________ getPacked(jsSource:mixed):string
+ − * returns one or more JavaScript code packed,
+ − * using getClean and obfuscating output
+ − * --------------------------------------------------------------
+ − * Note about $jsSource input varible:
+ − * this var should be a string (i.e. $jsSource = file_get_contents("myFile.js");)
+ − * should be an array of strings (i.e. array(file_get_contents("1.js"), file_get_contents("2.js"), ... ))
+ − * should be an array with 1 or 2 keys:
+ − * (i.e. array('code'=>file_get_contents("mySource.js")))
+ − * (i.e. array('code'=>file_get_contents("mySource.js"), 'name'=>'mySource'))
+ − * ... and should be an array of arrays created with theese rules
+ − * array(
+ − * file_get_contents("secret.js"),
+ − * array('code'=>$anotherJS),
+ − * array('code'=>$myJSapplication, 'name'=>'JSApplication V 1.0')
+ − * )
+ − *
+ − * The name used on dedicated key, will be write on parsed source header
+ − * --------------------------------------------------------------
+ − * Note about returned strings:
+ − * Your browser should wrap very long strings, then don't use
+ − * cut and paste from your browser, save output into your database or directly
+ − * in a file or print them only inside <script> and </script> tags
+ − * --------------------------------------------------------------
+ − * Note about parser performance:
+ − * With pure PHP embed code this class should be slow and not really safe
+ − * for your server performance then don't parse JavaScript runtime for each
+ − * file you need and create some "parsed" caching system
+ − * (at least while i've not created a compiled version of theese class functions).
+ − * Here there's a caching system example: http://www.phpclasses.org/browse/package/3158.html
+ − * --------------------------------------------------------------
+ − * Note about JavaScript packed compatibility:
+ − * To be sure about compatibility include before every script JSL Library:
+ − * http://www.devpro.it/JSL/
+ − * JSL library add some features for old or buggy browsers, one of
+ − * those functions is String.replace with function as second argument,
+ − * used by JavaScript generated packed code to rebuild original code.
+ − *
+ − * Remember that KDE 3.5, Safari and IE5 will not work correctly with packed version
+ − * if you'll not include JSL.
+ − * --------------------------------------------------------------
+ − * @Compatibility >= PHP 4
+ − * @Author Andrea Giammarchi
+ − * @see http://www.devpro.it/
+ − * @since 2006/05/31
+ − * @since 2006/08/01 [requires SourceMap.class.php to parse source faster and better (dojo.js.uncompressed.js file (211Kb) successfull cleaned or packed)]
+ − * @version 0.8
+ − * Dependencies:
+ − * Server: BaseConvert.class.php
+ − * Server: SourceMap.class.php
+ − * Client: JSL.js (http://www.devpro.it/JSL/)
+ − * Convertion is supported by every browser with JSL Library (FF 1+ Opera 8+ and IE5.5+ are supported without JSL too)
+ − * @copyright Dean Edwards for his originally idea [dean.edwards.name] and his JavaScript packer
+ − */
+ − class JavaScriptCompressor {
+ −
+ − /**
+ − * public variables
+ − * stats:string after every compression has some informations
+ − * version:string version of this class
+ − */
+ − var $stats = '',
+ − $version = '0.8';
+ −
+ − /** 'private' variables, any comment sorry */
+ − var $__startTime = 0,
+ − $__sourceLength = 0,
+ − $__sourceNewLength = 0,
+ − $__totalSources = 0,
+ − $__sources = array(),
+ − $__delimeter = array(),
+ − $__cleanFinder = array("/(\n|\r)+/", "/( |\t)+/", "/(\n )|( \n)|( \n )/", "/[[:space:]]+(\)|})/", "/(\(|{)[[:space:]]+/", "/[[:space:]]*(;|,|:|<|>|\&|\||\=|\?|\+|\-|\%)[[:space:]]*/", "/\)[[:space:]]+{/", "/}[[:space:]]+\(/"),
+ − $__cleanReplacer = array("\n", " ", "\n", "\\1", "\\1", "\\1", "){", "}("),
+ − $__BC = null,
+ − $__SourceMap = null;
+ −
+ − /**
+ − * public constructor
+ − * creates a new BaseConvert class variable (base 36)
+ − */
+ − function __construct() {
+ − $this->__SourceMap = new SourceMap();
+ − $this->__BC = new BaseConvert('0123456789abcdefghijklmnopqrstuvwxyz');
+ − $this->__delimeter = array(
+ − array('name'=>'doublequote', 'start'=>'"', 'end'=>'"', 'noslash'=>true),
+ − array('name'=>'singlequote', 'start'=>"'", 'end'=>"'", 'noslash'=>true),
+ − array('name'=>'singlelinecomment', 'start'=>'//', 'end'=>array("\n", "\r")),
+ − array('name'=>'multilinecomment', 'start'=>'/*', 'end'=>'*/'),
+ − array('name'=>'regexp', 'start'=>'/', 'end'=>'/', 'match'=>"/^\/[^\n\r]+\/$/", 'noslash'=>true)
+ − );
+ − }
+ −
+ − /**
+ − * public method
+ − * getClean(mixed [, bool]):string
+ − * compress JavaScript removing comments and somespaces (on by default)
+ − * @param mixed view example and notes on class comments
+ − */
+ − function getClean($jsSource) {
+ − return $this->__commonInitMethods($jsSource, false);
+ − }
+ −
+ − /**
+ − * public method
+ − * getPacked(mixed):string
+ − * compress JavaScript replaceing words and removing comments and some spaces
+ − * @param mixed view example and notes on class comments
+ − */
+ − function getPacked($jsSource) {
+ − return $this->__commonInitMethods($jsSource, true);
+ − }
+ −
+ − /** 'private' methods, any comment sorry */
+ − function __addCleanCode($str) {
+ − return preg_replace($this->__cleanFinder, $this->__cleanReplacer, trim($str));
+ − }
+ − function __addClean(&$arr, &$str, &$start, &$end, $clean) {
+ − if($clean)
+ − array_push($arr, $this->__addCleanCode(substr($str, $start, $end - $start)));
+ − else
+ − array_push($arr, substr($str, $start, $end - $start));
+ − }
+ − function __clean(&$str) {
+ − $len = strlen($str);
+ − $type = '';
+ − $clean = array();
+ − $map = $this->__SourceMap->getMap($str, $this->__delimeter);
+ − for($a = 0, $b = 0, $c = count($map); $a < $c; $a++) {
+ − $type = &$map[$a]['name'];
+ − switch($type) {
+ − case 'code':
+ − case 'regexp':
+ − case 'doublequote':
+ − case 'singlequote':
+ − $this->__addClean($clean, $str, $map[$a]['start'], $map[$a]['end'], ($type === 'code'));
+ − if($type !== 'regexp')
+ − array_push($clean, "\n");
+ − break;
+ − }
+ − }
+ − return preg_replace("/(\n)+/", "\n", trim(implode('', $clean)));
+ − }
+ − function __commonInitMethods(&$jsSource, $packed) {
+ − $header = '';
+ − $this->__startTime = $this->__getTime();
+ − $this->__sourceLength = 0;
+ − $this->__sourceManager($jsSource);
+ − for($a = 0, $b = $this->__totalSources; $a < $b; $a++)
+ − $this->__sources[$a]['code'] = $this->__clean($this->__sources[$a]['code']);
+ − $header = $this->__getHeader();
+ − for($a = 0, $b = $this->__totalSources; $a < $b; $a++)
+ − $this->__sources[$a] = &$this->__sources[$a]['code'];
+ − $this->__sources = implode(';', $this->__sources);
+ − if($packed)
+ − $this->__sources = $this->__pack($this->__sources);
+ − $this->__sourceNewLength = strlen($this->__sources);
+ − $this->__setStats();
+ − return $header.$this->__sources;
+ − }
+ − function __getHeader() {
+ − return implode('', array(
+ − '/* ',$this->__getScriptNames(),'JavaScriptCompressor ',$this->version,' [www.devpro.it], ',
+ − 'thanks to Dean Edwards for idea [dean.edwards.name]',
+ − " */\r\n"
+ − ));
+ − }
+ − function __getScriptNames() {
+ − $a = 0;
+ − $result = array();
+ − for($b = $this->__totalSources; $a < $b; $a++) {
+ − if($this->__sources[$a]['name'] !== '')
+ − array_push($result, $this->__sources[$a]['name']);
+ − }
+ − $a = count($result);
+ − if($a-- > 0)
+ − $result[$a] .= ' with ';
+ − return $a < 0 ? '' : implode(', ', $result);
+ − }
+ − function __getSize($size, $dec = 2) {
+ − $toEval = '';
+ − $type = array('bytes', 'Kb', 'Mb', 'Gb');
+ − $nsize = $size;
+ − $times = 0;
+ − while($nsize > 1024) {
+ − $nsize = $nsize / 1024;
+ − $toEval .= '/1024';
+ − $times++;
+ − }
+ − if($times === 0)
+ − $fSize = $size.' '.$type[$times];
+ − else {
+ − eval('$size=($size'.$toEval.');');
+ − $fSize = number_format($size, $dec, '.', '').' '.$type[$times];
+ − }
+ − return $fSize;
+ − }
+ − function __getTime($startTime = null) {
+ − list($usec, $sec) = explode(' ', microtime());
+ − $newtime = (float)$usec + (float)$sec;
+ − if($startTime !== null)
+ − $newtime = number_format(($newtime - $startTime), 3);
+ − return $newtime;
+ − }
+ − function __pack(&$str) {
+ − $container = array();
+ − $str = preg_replace("/(\w+)/e", '$this->__BC->toBase($this->__wordsParser("\\1",$container));', $this->__clean($str));
+ − $str = str_replace("\n", '\n', addslashes($str));
+ − return 'eval(function(A,G){return A.replace(/(\\w+)/g,function(a,b){return G[parseInt(b,36)]})}("'.$str.'","'.implode(',', $container).'".split(",")));';
+ − }
+ − function __setStats() {
+ − $this->stats = implode(' ', array(
+ − $this->__getSize($this->__sourceLength),
+ − 'to',
+ − $this->__getSize($this->__sourceNewLength),
+ − 'in',
+ − $this->__getTime($this->__startTime),
+ − 'seconds'
+ − ));
+ − }
+ − function __sourceManager(&$jsSource) {
+ − $b = count($jsSource);
+ − $this->__sources = array();
+ − if(is_string($jsSource))
+ − $this->__sourcePusher($jsSource, '');
+ − elseif(is_array($jsSource) && $b > 0) {
+ − if(isset($jsSource['code']))
+ − $this->__sourcePusher($jsSource['code'], (isset($jsSource['name']) ? $jsSource['name'] : ''));
+ − else {
+ − for($a = 0; $a < $b; $a++) {
+ − if(is_array($jsSource[$a]) && isset($jsSource[$a]['code'], $jsSource[$a]['name']))
+ − $this->__sourcePusher($jsSource[$a]['code'], trim($jsSource[$a]['name']));
+ − elseif(is_string($jsSource[$a]))
+ − $this->__sourcePusher($jsSource[$a], '');
+ − }
+ − }
+ − }
+ − $this->__totalSources = count($this->__sources);
+ − }
+ − function __sourcePusher(&$code, $name) {
+ − $this->__sourceLength += strlen($code);
+ − array_push($this->__sources, array('code'=>$code, 'name'=>$name));
+ − }
+ − function __wordsParser($str, &$d) {
+ − if(@is_null($key = array_shift($key = array_keys($d,$str))))
+ − $key = array_push($d, $str) - 1;
+ − return $key;
+ − }
+ − }
+ −
+ − /**
+ − * BaseConvert class,
+ − * converts an unsigned base 10 integer to a different base and vice versa.
+ − * ______________________________________________________________
+ − * BaseConvert
+ − * |
+ − * |________ constructor(newBase:string)
+ − * | uses newBase string var for convertion
+ − * | [i.e. "0123456789abcdef" for an hex convertion]
+ − * |
+ − * |________ toBase(unsignedInteger:uint):string
+ − * | return base value of input
+ − * |
+ − * |________ fromBase(baseString:string):uint
+ − * return base 10 integer value of base input
+ − * --------------------------------------------------------------
+ − * REMEMBER: PHP < 6 doesn't work correctly with integer greater than 2147483647 (2^31 - 1)
+ − * --------------------------------------------------------------
+ − * @Compatibility >= PHP 4
+ − * @Author Andrea Giammarchi
+ − * @Site http://www.devpro.it/
+ − * @Date 2006/06/05
+ − * @Version 1.0
+ − */
+ −
+ − class BaseConvert {
+ −
+ − var $base, $baseLength;
+ −
+ − function BaseConvert($base) {
+ − $this->base = &$base;
+ − $this->baseLength = strlen($base);
+ − }
+ −
+ − function toBase($num) {
+ − $module = 0; $result = '';
+ − while($num) {
+ − $result = $this->base{($module = $num % $this->baseLength)}.$result;
+ − $num = (int)(($num - $module) / $this->baseLength);
+ − }
+ − return $result !== '' ? $result : $this->base{0};
+ − }
+ −
+ − function fromBase($str) {
+ − $pos = 0; $len = strlen($str) - 1; $result = 0;
+ − while($pos < $len)
+ − $result += pow($this->baseLength, ($len - $pos)) * strpos($this->base, $str{($pos++)});
+ − return $len >= 0 ? $result + strpos($this->base, $str{($pos)}) : null;
+ − }
+ − }
+ −
+ − /**
+ − * SourceMap class,
+ − * reads a generic language source code and returns its map.
+ − * ______________________________________________________________
+ − * The SourceMap goals is to create a map of a generic script/program language.
+ − * The getMap method returns an array/list of arrays/dictionary/objects
+ − * of source map using delimeters variable to map correctly:
+ − * - multi line comments
+ − * - single line comments
+ − * - double quoted strings
+ − * - single quoted strings
+ − * - pure code
+ − * - everything else (for example regexp [/re/] with javascript), just adding a correct delimeter
+ − * --------------------------------------------------------------
+ − * What about the delimeter
+ − * It's an array/list of arrays/dictionary/obects with some properties to find what you're looking for.
+ − *
+ − * parameters are:
+ − * - name, the name of the delimeter (i.e. "doublequote")
+ − * - start, one or mode chars to find as start delimeter (i.e. " for double quoted string)
+ − * - end, one or mode chars to find as end delimeter (i.e. " for double quoted string) [end should be an array/list too]
+ − *
+ − * optional parameters are:
+ − * - noslash, if true find the end of the delimeter only if last char is not slashed (i.e. "string\"test" find " after test)
+ − * - match, if choosed language has regexp, verify if string from start to end matches used regexp (i.e. /^\/[^\n\r]+\/$/ for JavaScript regexp)
+ − *
+ − * If end parameter is an array, match and noslash are not supported (i.e. ["\n", "\r"] for end delimeter of a single line comment)
+ − * --------------------------------------------------------------
+ − * What about SourceMap usage
+ − * It should be a good solution to create sintax highlighter, parser,
+ − * verifier or some other source code parsing procedure
+ − * --------------------------------------------------------------
+ − * What about SourceMap performance script/languages
+ − * I've created different version of this class to test each script/program language performance too.
+ − * Python with or without Psyco is actually the faster parser.
+ − * However with this PHP version this class has mapped "dojo.js.uncompressed.js" file (about 211Kb) in less than 0.5 second.
+ − * Test has been done with embed class and PHP as module, any accelerator was used for this PHP test.
+ − * --------------------------------------------------------------
+ − * @Compatibility >= PHP 4
+ − * @Author Andrea Giammarchi
+ − * @Site http://www.devpro.it/
+ − * @Date 2006/08/01
+ − * @LastMOd 2006/08/01
+ − * @Version 0.1
+ − * @Application Last version of JavaScriptCompressor class use this one to map source code.
+ − */
+ − class SourceMap {
+ −
+ − /**
+ − * public method
+ − * getMap(&$source:string, &$delimeters:array):array
+ − * Maps the source code using $delimeters rules and returns map as an array
+ − * NOTE: read comments to know more about map and delimeter
+ − *
+ − * @param string generic source code
+ − * @param array array with nested array with code rules
+ − */
+ − function getMap(&$source, &$delimeters) {
+ −
+ − # "unsigned" integer variables
+ − $sourcePosition = 0;
+ − $delimetersPosition = 0;
+ − $findLength = 0;
+ − $len = 0;
+ − $tempIndex = 0;
+ − $sourceLength = strlen($source);
+ − $delimetersLength = count($delimeters);
+ −
+ − # integer variables
+ − $tempPosition = -1;
+ − $endPosition = -1;
+ −
+ − # array variables
+ − $map = array();
+ − $tempMap = array();
+ − $tempDelimeter = array();
+ −
+ − while($sourcePosition < $sourceLength) {
+ − $endPosition = -1;
+ − for($delimetersPosition = 0; $delimetersPosition < $delimetersLength; $delimetersPosition++) {
+ − $tempPosition = strpos($source, $delimeters[$delimetersPosition]['start'], $sourcePosition);
+ − if($tempPosition !== false && ($tempPosition < $endPosition || $endPosition === -1)) {
+ − $endPosition = $tempPosition;
+ − $tempIndex = $delimetersPosition;
+ − }
+ − }
+ − if($endPosition !== -1) {
+ − $sourcePosition = $endPosition;
+ − $tempDelimeter = &$delimeters[$tempIndex];
+ − $findLength = strlen($tempDelimeter['start']);
+ − if(is_array($tempDelimeter['end'])) {
+ − $delimetersPosition = 0;
+ − $endPosition = -1;
+ − for($len = count($tempDelimeter['end']); $delimetersPosition < $len; $delimetersPosition++) {
+ − $tempPosition = strpos($source, $tempDelimeter['end'][$delimetersPosition], $sourcePosition + $findLength);
+ − if($tempPosition !== false && ($tempPosition < $endPosition || $endPosition === -1)) {
+ − $endPosition = $tempPosition;
+ − $tempIndex = $delimetersPosition;
+ − }
+ − }
+ − if($endPosition !== -1)
+ − $endPosition = $endPosition + strlen($tempDelimeter['end'][$tempIndex]);
+ − else
+ − $endPosition = $sourceLength;
+ − array_push($map, array('name'=>$tempDelimeter['name'], 'start'=>$sourcePosition, 'end'=>$endPosition));
+ − $sourcePosition = $endPosition - 1;
+ − }
+ − elseif(isset($tempDelimeter['match'])) {
+ − $tempPosition = strpos($source, $tempDelimeter['end'], $sourcePosition + $findLength);
+ − $len = strlen($tempDelimeter['end']);
+ − if($tempPosition !== false && preg_match($tempDelimeter['match'], substr($source, $sourcePosition, $tempPosition - $sourcePosition + $len))) {
+ − $endPosition = isset($tempDelimeter['noslash']) ? $this->__endCharNoSlash($source, $sourcePosition, $tempDelimeter['end'], $sourceLength) : $tempPosition + $len;
+ − array_push($map, array('name'=>$tempDelimeter['name'], 'start'=>$sourcePosition, 'end'=>$endPosition));
+ − $sourcePosition = $endPosition - 1;
+ − }
+ − }
+ − else {
+ − if(isset($tempDelimeter['noslash']))
+ − $endPosition = $this->__endCharNoSlash($source, $sourcePosition, $tempDelimeter['end'], $sourceLength);
+ − else {
+ − $tempPosition = strpos($source, $tempDelimeter['end'], $sourcePosition + $findLength);
+ − if($tempPosition !== false)
+ − $endPosition = $tempPosition + strlen($tempDelimeter['end']);
+ − else
+ − $endPosition = $sourceLength;
+ − }
+ − array_push($map, array('name'=>$tempDelimeter['name'], 'start'=>$sourcePosition, 'end'=>$endPosition));
+ − $sourcePosition = $endPosition - 1;
+ − }
+ − }
+ − else
+ − $sourcePosition = $sourceLength - 1;
+ − ++$sourcePosition;
+ − }
+ − $len = count($map);
+ − if($len === 0)
+ − array_push($tempMap, array('name'=>'code', 'start'=>0, 'end'=>$sourceLength));
+ − else {
+ − for($tempIndex = 0; $tempIndex < $len; $tempIndex++) {
+ − if($tempIndex === 0 && $map[$tempIndex]['start'] > 0)
+ − array_push($tempMap, array('name'=>'code', 'start'=>0, 'end'=>$map[$tempIndex]['start']));
+ − elseif($tempIndex > 0 && $map[$tempIndex]['start'] > $map[$tempIndex-1]['end'])
+ − array_push($tempMap, array('name'=>'code', 'start'=>$map[$tempIndex-1]['end'], 'end'=>$map[$tempIndex]['start']));
+ − array_push($tempMap, array('name'=>$map[$tempIndex]['name'], 'start'=>$map[$tempIndex]['start'], 'end'=>$map[$tempIndex]['end']));
+ − if($tempIndex + 1 === $len && $map[$tempIndex]['end'] < $sourceLength)
+ − array_push($tempMap, array('name'=>'code', 'start'=>$map[$tempIndex]['end'], 'end'=>$sourceLength));
+ − }
+ − }
+ − return $tempMap;
+ − }
+ −
+ − function __endCharNoSlash(&$source, $position, &$find, &$len) {
+ − $temp = strlen($find);
+ − do {
+ − $position = strpos($source, $find, $position + 1);
+ − }while($position !== false && !$this->__charNoSlash($source, $position));
+ − if($position === false) $position = $len - $temp;
+ − return $position + $temp;
+ − }
+ −
+ − function __charNoSlash(&$source, &$position) {
+ − $next = 1; $len = $position - $next;
+ − while($len > 0 && $source{$len} === '\\') $len = $position - (++$next);
+ − return (($next - 1) % 2 === 0);
+ − }
+ − }
+ −
+ − /**
+ − * Wrapper for the JavaScriptCompressor class.
+ − * @param string Javascript code to compact. If this doesn't contain any newline characters, will be treated as a filename.
+ − * @param bool If true, aggressively compresses the code. Otherwise, just strips comments and some whitespace.
+ − * @return string Compressed JS
+ − */
+ −
+ − function perform_js_compress($text_or_file, $aggressive = false)
+ − {
+ − static $compressor = false;
+ −
+ − if ( !is_object($compressor) )
+ − $compressor = new JavaScriptCompressor();
+ −
+ − if ( strpos($text_or_file, "\n") )
+ − {
+ − $text =& $text_or_file;
+ − }
+ − else if ( file_exists($text_or_file) )
+ − {
+ − $text = file_get_contents($text_or_file);
+ − }
+ − else
+ − {
+ − $text =& $text_or_file;
+ − }
+ −
+ − return ( $aggressive ) ? $compressor->getPacked($text) : $compressor->getClean($text);
+ − }
+ −
+ − ?>