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Diffstat (limited to 'javascript/class.JavaScriptPacker.php')
| -rwxr-xr-x | javascript/class.JavaScriptPacker.php | 728 |
1 files changed, 0 insertions, 728 deletions
diff --git a/javascript/class.JavaScriptPacker.php b/javascript/class.JavaScriptPacker.php deleted file mode 100755 index 635d1f5..0000000 --- a/javascript/class.JavaScriptPacker.php +++ /dev/null @@ -1,728 +0,0 @@ -<?php -/* 7 December 2006. version 1.0 - * - * 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. - * modified by Mark Fabrizio Jr. to work with php 4 - * - * ---------------------------------------------------------------------- - * - * examples of usage : - * $myPacker = new JavaScriptPacker($script, 62, true, false); - * $packed = $myPacker->pack(); - * - * or - * - * $myPacker = new JavaScriptPacker($script, 'Normal', true, false); - * $packed = $myPacker->pack(); - * - * or (default values) - * - * $myPacker = new JavaScriptPacker($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 : - * # [del]need PHP 5 . Tested with PHP 5.1.2[/del] - * this is a modified version for PHP 4 - * - * # 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... - */ - - /* - * modified by Mark Fabrizio Jr. to work with php 4 - */ - -class JavaScriptPacker { - var $IGNORE = "$1"; - - // validate parameters - var $_script = ""; - var $_encoding = 62; - var $_fastDecode = true; - var $_specialChars = false; - - var $LITERAL_ENCODING = [ - "None" => 0, - "Numeric" => 10, - "Normal" => 62, - "High ASCII" => 95, - ]; - - function JavaScriptPacker($_script, $_encoding = 62, $_fastDecode = true, $_specialChars = false) - { - $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; - } - - 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 - function _pack($script) { - for ($i = 0; isset($this->_parsers[$i]); $i++) { - $script = call_user_func([&$this,$this->_parsers[$i]], $script); - } - return $script; - } - - // keep a list of parsing functions, they'll be executed all at once - var $_parsers = []; - function _addParser($parser) { - $this->_parsers[] = $parser; - } - - // zero encoding - just removal of white space and comments - function _basicCompression($script) { - $parser = new ParseMaster(); - // make safe - $parser->escapeChar = '\\'; - // protect strings - $parser->add('/\'[^\'\\n\\r]*\'/',$this->IGNORE); - $parser->add('/"[^"\\n\\r]*"/', $this->IGNORE); - // remove comments - $parser->add('/\\/\\/[^\\n\\r]*[\\n\\r]/', " "); - $parser->add('/\\/\\*[^*]*\\*+([^\\/][^*]*\\*+)*\\//', " "); - // protect regular expressions - $parser->add('/\\s+(\\/[^\\/\\n\\r\\*][^\\/\\n\\r]*\\/g?i?)/', "$2"); // IGNORE - $parser->add('/[^\\w\\x24\\/\'"*)\\?:]\\/[^\\/\\n\\r\\*][^\\/\\n\\r]*\\/g?i?/', $this->IGNORE); - // remove: ;;; doSomething(); - if ($this->_specialChars) $parser->add('/;;;[^\\n\\r]+[\\n\\r]/'); - // remove redundant semi-colons - $parser->add('/\\(;;\\)/', $this->IGNORE); // protect for (;;) loops - $parser->add('/;+\\s*([};])/', "$2"); - // apply the above - $script = $parser->exec($script); - - // remove white-space - $parser->add('/(\\b|\\x24)\\s+(\\b|\\x24)/', "$2 $3"); - $parser->add('/([+\\-])\\s+([+\\-])/', "$2 $3"); - $parser->add('/\\s+/', ""); - // done - return $parser->exec($script); - } - - function _encodeSpecialChars($script) { - $parser = new ParseMaster(); - // replace: $name -> n, $$name -> na - $parser->add('/((\\x24+)([a-zA-Z$_]+))(\\d*)/', - ["fn" => "_replace_name"], - ); - // replace: _name -> _0, double-underscore (__name) is ignored - $regexp = '/\\b_[A-Za-z\\d]\\w*/'; - // build the word list - $keywords = $this->_analyze($script, $regexp, "_encodePrivate"); - // quick ref - $encoded = $keywords["encoded"]; - - $parser->add($regexp, - [ - "fn" => "_replace_encoded", - "data" => $encoded, - ], - ); - return $parser->exec($script); - } - - function _encodeKeywords($script) { - // escape high-ascii values already in the script (i.e. in strings) - if ($this->_encoding > 62) - $script = $this->_escape95($script); - // create the parser - $parser = new ParseMaster(); - $encode = $this->_getEncoder($this->_encoding); - // for high-ascii, don't encode single character low-ascii - $regexp = ($this->_encoding > 62) ? '/\\w\\w+/' : '/\\w+/'; - // build the word list - $keywords = $this->_analyze($script, $regexp, $encode); - $encoded = $keywords["encoded"]; - - // encode - $parser->add($regexp, - [ - "fn" => "_replace_encoded", - "data" => $encoded, - ], - ); - if (empty($script)) return $script; - - //$res = $parser->exec($script); - //$res = $this->_bootStrap($res, $keywords); - //return $res; - return $this->_bootStrap($parser->exec($script), $keywords); - - } - - function _analyze($script, $regexp, $encode) { - // analyse - // retreive all words in the script - $all = []; - preg_match_all($regexp, $script, $all); - $_sorted = []; // list of words sorted by frequency - $_encoded = []; // dictionary of word->encoding - $_protected = []; // instances of "protected" words - $all = $all[0]; // simulate the javascript comportement of global match - if (!empty($all)) { - $unsorted = []; // same list, not sorted - $protected = []; // "protected" words (dictionary of word->"word") - $value = []; // dictionary of charCode->encoding (eg. 256->ff) - $this->_count = []; // word->count - $i = count($all); $j = 0; //$word = null; - // count the occurrences - used for sorting later - do { - --$i; - $word = "$" . $all[$i]; - if (!isset($this->_count[$word])) { - $this->_count[$word] = 0; - $unsorted[$j] = $word; - // make a dictionary of all of the protected words in this script - // these are words that might be mistaken for encoding - //if (is_string($encode) && method_exists($this, $encode)) - $values[$j] = call_user_func([&$this, $encode], $j); - $protected["$" . $values[$j]] = $j++; - } - // increment the word counter - $this->_count[$word]++; - } while ($i > 0); - // prepare to sort the word list, first we must protect - // words that are also used as codes. we assign them a code - // equivalent to the word itself. - // e.g. if "do" falls within our encoding range - // then we store keywords["do"] = "do"; - // this avoids problems when decoding - $i = count($unsorted); - do { - $word = $unsorted[--$i]; - if (isset($protected[$word]) /*!= null*/) { - $_sorted[$protected[$word]] = substr($word, 1); - $_protected[$protected[$word]] = true; - $this->_count[$word] = 0; - } - } while ($i); - - // sort the words by frequency - // Note: the javascript and php version of sort can be different : - // in php manual, usort : - // " If two members compare as equal, - // their order in the sorted array is undefined." - // so the final packed script is different of the Dean's javascript version - // but equivalent. - // the ECMAscript standard does not guarantee this behaviour, - // and thus not all browsers (e.g. Mozilla versions dating back to at - // least 2003) respect this. - usort($unsorted, [&$this, "_sortWords"]); - $j = 0; - // because there are "protected" words in the list - // we must add the sorted words around them - do { - if (!isset($_sorted[$i])) - $_sorted[$i] = substr($unsorted[$j++], 1); - $_encoded[$_sorted[$i]] = $values[$i]; - } while (++$i < count($unsorted)); - } - return [ - "sorted" => $_sorted, - "encoded" => $_encoded, - "protected" => $_protected, ]; - } - - var $_count = []; - function _sortWords($match1, $match2) { - return $this->_count[$match2] - $this->_count[$match1]; - } - - // build the boot function used for loading and decoding - function _bootStrap($packed, $keywords) { - $ENCODE = $this->_safeRegExp('$encode\\($count\\)'); - - // $packed: the packed script - $packed = "'" . $this->_escape($packed) . "'"; - - // $ascii: base for encoding - $ascii = min(count($keywords["sorted"]), $this->_encoding); - if ($ascii == 0) $ascii = 1; - - // $count: number of words contained in the script - $count = count($keywords["sorted"]); - - // $keywords: list of words contained in the script - foreach ($keywords["protected"] as $i=>$value) { - $keywords["sorted"][$i] = ""; - } - // convert from a string to an array - ksort($keywords["sorted"]); - $keywords = "'" . implode("|",$keywords["sorted"]) . "'.split('|')"; - - $encode = ($this->_encoding > 62) ? "_encode95" : $this->_getEncoder($ascii); - $encode = $this->_getJSFunction($encode); - $encode = preg_replace("/_encoding/","$ascii", $encode); - $encode = preg_replace('/arguments\\.callee/',"$encode", $encode); - $inline = '\\$count' . ($ascii > 10 ? '.toString(\\$ascii)' : ""); - - // $decode: code snippet to speed up decoding - if ($this->_fastDecode) { - // create the decoder - $decode = $this->_getJSFunction("_decodeBody"); - if ($this->_encoding > 62) - $decode = preg_replace('/\\\\w/', '[\\xa1-\\xff]', $decode); - // perform the encoding inline for lower ascii values - elseif ($ascii < 36) - $decode = preg_replace($ENCODE, $inline, $decode); - // special case: when $count==0 there are no keywords. I want to keep - // the basic shape of the unpacking funcion so i'll frig the code... - if ($count == 0) - $decode = preg_replace($this->_safeRegExp('($count)\\s*=\\s*1'), "$1=0", $decode, 1); - } - - // boot function - $unpack = $this->_getJSFunction("_unpack"); - if ($this->_fastDecode) { - // insert the decoder - $this->buffer = $decode; - $unpack = preg_replace_callback('/\\{/', [&$this, "_insertFastDecode"], $unpack, 1); - } - $unpack = preg_replace('/"/', "'", $unpack); - if ($this->_encoding > 62) { // high-ascii - // get rid of the word-boundaries for regexp matches - $unpack = preg_replace('/\'\\\\\\\\b\'\s*\\+|\\+\s*\'\\\\\\\\b\'/', "", $unpack); - } - if ($ascii > 36 || $this->_encoding > 62 || $this->_fastDecode) { - // insert the encode function - $this->buffer = $encode; - $unpack = preg_replace_callback('/\\{/', [&$this, "_insertFastEncode"], $unpack, 1); - } else { - // perform the encoding inline - $unpack = preg_replace($ENCODE, $inline, $unpack); - } - // pack the boot function too - $unpackPacker = new JavaScriptPacker($unpack, 0, false, true); - $unpack = $unpackPacker->pack(); - - // arguments - $params = [$packed, $ascii, $count, $keywords]; - if ($this->_fastDecode) { - $params[] = 0; - $params[] = "{}"; - } - $params = implode(",", $params); - - // the whole thing - return "eval(" . $unpack . "(" . $params . "));\n"; - } - - var $buffer; - function _insertFastDecode($match) { - return "{" . $this->buffer . ";"; - } - function _insertFastEncode($match) { - return "{$encode=" . $this->buffer . ";"; - } - - // mmm.. ..which one do i need ?? - function _getEncoder($ascii) { - return $ascii > 10 ? $ascii > 36 ? $ascii > 62 ? - "_encode95" : "_encode62" : "_encode36" : "_encode10"; - } - - // zero encoding - // characters: 0123456789 - function _encode10($charCode) { - return $charCode; - } - - // inherent base36 support - // characters: 0123456789abcdefghijklmnopqrstuvwxyz - function _encode36($charCode) { - return base_convert($charCode, 10, 36); - } - - // hitch a ride on base36 and add the upper case alpha characters - // characters: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ - function _encode62($charCode) { - $res = ""; - if ($charCode >= $this->_encoding) { - $res = $this->_encode62((int)($charCode / $this->_encoding)); - } - $charCode = $charCode % $this->_encoding; - - if ($charCode > 35) - return $res . chr($charCode + 29); - - return $res . base_convert($charCode, 10, 36); - } - - // use high-ascii values - // characters: ¡¢£¤¥¦§¨©ª«¬Â®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÃ?ÂÃÄÅÆÇÈÉÊËÌÃ?ÃŽÃ?Ã?ÑÒÓÔÕÖ×ØÙÚÛÜÃ?Þßà áâãäåæçèéêëìÃîïðñòóôõö÷øùúûüýþ - function _encode95($charCode) { - $res = ""; - if ($charCode >= $this->_encoding) - $res = $this->_encode95($charCode / $this->_encoding); - - return $res . chr(($charCode % $this->_encoding) + 161); - } - - function _safeRegExp($string) { - return "/".preg_replace('/\$/', '\\\$', $string)."/"; - } - - function _encodePrivate($charCode) { - return "_" . $charCode; - } - - // protect characters used by the parser - function _escape($script) { - return preg_replace('/([\\\\\'])/', '\\\$1', $script); - } - - // protect high-ascii characters already in the script - function _escape95($script) { - return preg_replace_callback( - '/[\\xa1-\\xff]/', - [&$this, "_escape95Bis"], - $script, - ); - } - function _escape95Bis($match) { - return '\x'.((string)dechex(ord($match))); - } - - function _getJSFunction($aName) { - $func = "JSFUNCTION".$aName; - if (isset($this->$func)){ - return $this->$func; - } - - return ""; - } - - // JavaScript Functions used. - // Note : In Dean's version, these functions are converted - // with 'String(aFunctionName);'. - // This internal conversion complete the original code, ex : - // 'while (aBool) anAction();' is converted to - // 'while (aBool) { anAction(); }'. - // The JavaScript functions below are corrected. - - // unpacking function - this is the boot strap function - // data extracted from this packing routine is passed to - // this function when decoded in the target - // NOTE ! : without the ';' final. - var $JSFUNCTION_unpack = 'function($packed, $ascii, $count, $keywords, $encode, $decode) { - while ($count--) { - if ($keywords[$count]) { - $packed = $packed.replace(new RegExp(\'\\\\b\' + $encode($count) + \'\\\\b\', \'g\'), $keywords[$count]); - } - } - return $packed; -}'; -/* -'function($packed, $ascii, $count, $keywords, $encode, $decode) { - while ($count--) - if ($keywords[$count]) - $packed = $packed.replace(new RegExp(\'\\\\b\' + $encode($count) + \'\\\\b\', \'g\'), $keywords[$count]); - return $packed; -}'; -*/ - - // code-snippet inserted into the unpacker to speed up decoding - var $JSFUNCTION_decodeBody = ' if (!\'\'.replace(/^/, String)) { - // decode all the values we need - while ($count--) { - $decode[$encode($count)] = $keywords[$count] || $encode($count); - } - // global replacement function - $keywords = [function ($encoded) {return $decode[$encoded]}]; - // generic match - $encode = function () {return \'\\\\w+\'}; - // reset the loop counter - we are now doing a global replace - $count = 1; - } -'; -//}; -/* -' if (!\'\'.replace(/^/, String)) { - // decode all the values we need - while ($count--) $decode[$encode($count)] = $keywords[$count] || $encode($count); - // global replacement function - $keywords = [function ($encoded) {return $decode[$encoded]}]; - // generic match - $encode = function () {return\'\\\\w+\'}; - // reset the loop counter - we are now doing a global replace - $count = 1; - }'; -*/ - - // zero encoding - // characters: 0123456789 - var $JSFUNCTION_encode10 = "function($charCode) { - return $charCode; -}";//;'; - - // inherent base36 support - // characters: 0123456789abcdefghijklmnopqrstuvwxyz - var $JSFUNCTION_encode36 = "function($charCode) { - return $charCode.toString(36); -}";//;'; - - // hitch a ride on base36 and add the upper case alpha characters - // characters: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ - var $JSFUNCTION_encode62 = 'function($charCode) { - return ($charCode < _encoding ? \'\' : arguments.callee(parseInt($charCode / _encoding))) + - (($charCode = $charCode % _encoding) > 35 ? String.fromCharCode($charCode + 29) : $charCode.toString(36)); -}'; - - // use high-ascii values - // characters: ¡¢£¤¥¦§¨©ª«¬Â®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÃ?ÂÃÄÅÆÇÈÉÊËÌÃ?ÃŽÃ?Ã?ÑÒÓÔÕÖ×ØÙÚÛÜÃ?Þßà áâãäåæçèéêëìÃîïðñòóôõö÷øùúûüýþ - var $JSFUNCTION_encode95 = 'function($charCode) { - return ($charCode < _encoding ? \'\' : arguments.callee($charCode / _encoding)) + - String.fromCharCode($charCode % _encoding + 161); -}'; - -} - -class ParseMaster { - var $ignoreCase = false; - var $escapeChar = ""; - - // constants - var $EXPRESSION = 0; - var $REPLACEMENT = 1; - var $LENGTH = 2; - - // used to determine nesting levels - var $GROUPS = '/\\(/';//g - var $SUB_REPLACE = '/\\$\\d/'; - var $INDEXED = '/^\\$\\d+$/'; - var $TRIM = '/([\'"])\\1\\.(.*)\\.\\1\\1$/'; - var $ESCAPE = '/\\\./';//g - var $QUOTE = '/\'/'; - var $DELETED = '/\\x01[^\\x01]*\\x01/';//g - - function add($expression, $replacement = "") { - // count the number of sub-expressions - // - add one because each pattern is itself a sub-expression - $length = 1 + preg_match_all($this->GROUPS, $this->_internalEscape((string)$expression), $out); - - // treat only strings $replacement - if (is_string($replacement)) { - // does the pattern deal with sub-expressions? - if (preg_match($this->SUB_REPLACE, $replacement)) { - // a simple lookup? (e.g. "$2") - if (preg_match($this->INDEXED, $replacement)) { - // store the index (used for fast retrieval of matched strings) - $replacement = (int)(substr($replacement, 1)) - 1; - } else { // a complicated lookup (e.g. "Hello $2 $1") - // build a function to do the lookup - $quote = preg_match($this->QUOTE, $this->_internalEscape($replacement)) - ? '"' : "'"; - $replacement = [ - "fn" => "_backReferences", - "data" => [ - "replacement" => $replacement, - "length" => $length, - "quote" => $quote, - ], - ]; - } - } - } - // pass the modified arguments - if (!empty($expression)) $this->_add($expression, $replacement, $length); - else $this->_add("/^$/", $replacement, $length); - } - - function exec($string) { - // execute the global replacement - $this->_escaped = []; - - // simulate the _patterns.toSTring of Dean - $regexp = "/"; - foreach ($this->_patterns as $reg) { - $regexp .= "(" . substr($reg[$this->EXPRESSION], 1, -1) . ")|"; - } - $regexp = substr($regexp, 0, -1) . "/"; - $regexp .= ($this->ignoreCase) ? "i" : ""; - - $string = $this->_escape($string, $this->escapeChar); - $string = preg_replace_callback( - $regexp, - [ - &$this, - "_replacement", - ], - $string, - ); - $string = $this->_unescape($string, $this->escapeChar); - - return preg_replace($this->DELETED, "", $string); - } - - function reset() { - // clear the patterns collection so that this object may be re-used - $this->_patterns = []; - } - - // private - var $_escaped = []; // escaped characters - var $_patterns = []; // patterns stored by index - - // create and add a new pattern to the patterns collection - function _add() { - $arguments = func_get_args(); - $this->_patterns[] = $arguments; - } - - // this is the global replace function (it's quite complicated) - function _replacement($arguments) { - if (empty($arguments)) return ""; - - $i = 1; $j = 0; - // loop through the patterns - while (isset($this->_patterns[$j])) { - $pattern = $this->_patterns[$j++]; - // do we have a result? - if (isset($arguments[$i]) && ($arguments[$i] != "")) { - $replacement = $pattern[$this->REPLACEMENT]; - - if (is_array($replacement) && isset($replacement["fn"])) { - - if (isset($replacement["data"])) $this->buffer = $replacement["data"]; - return call_user_func([&$this, $replacement["fn"]], $arguments, $i); - - } elseif (is_int($replacement)) { - return $arguments[$replacement + $i]; - - } - $delete = ($this->escapeChar == "" || - strpos($arguments[$i], $this->escapeChar) === false) - ? "" : "\x01" . $arguments[$i] . "\x01"; - return $delete . $replacement; - - // skip over references to sub-expressions - } - $i += $pattern[$this->LENGTH]; - - } - } - - function _backReferences($match, $offset) { - $replacement = $this->buffer["replacement"]; - $quote = $this->buffer["quote"]; - $i = $this->buffer["length"]; - while ($i) { - $replacement = str_replace("$".$i--, $match[$offset + $i], $replacement); - } - return $replacement; - } - - function _replace_name($match, $offset){ - $length = strlen($match[$offset + 2]); - $start = $length - max($length - strlen($match[$offset + 3]), 0); - return substr($match[$offset + 1], $start, $length) . $match[$offset + 4]; - } - - function _replace_encoded($match, $offset) { - return $this->buffer[$match[$offset]]; - } - - // php : we cannot pass additional data to preg_replace_callback, - // and we cannot use &$this in create_function, so let's go to lower level - var $buffer; - - // encode escaped characters - function _escape($string, $escapeChar) { - if ($escapeChar) { - $this->buffer = $escapeChar; - return preg_replace_callback( - '/\\' . $escapeChar . "(.)" ."/", - [&$this, "_escapeBis"], - $string, - ); - - } - return $string; - - } - function _escapeBis($match) { - $this->_escaped[] = $match[1]; - return $this->buffer; - } - - // decode escaped characters - function _unescape($string, $escapeChar) { - if ($escapeChar) { - $regexp = "/".'\\'.$escapeChar."/"; - $this->buffer = ["escapeChar"=> $escapeChar, "i" => 0]; - return preg_replace_callback - ( - $regexp, - [&$this, "_unescapeBis"], - $string, - ); - - } - return $string; - - } - function _unescapeBis() { - if (!empty($this->_escaped[$this->buffer["i"]])) { - $temp = $this->_escaped[$this->buffer["i"]]; - } else { - $temp = ""; - } - $this->buffer["i"]++; - return $this->buffer["escapeChar"] . $temp; - } - - function _internalEscape($string) { - return preg_replace($this->ESCAPE, "", $string); - } -} -?> |