new pisilinux web sites
This commit is contained in:
Erkan IŞIK
@@ -0,0 +1,694 @@
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<?php namespace ZN\Hypertext;
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/**
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* ZN PHP Web Framework
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*
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* "Simplicity is the ultimate sophistication." ~ Da Vinci
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*
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* @package ZN
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* @license MIT [http://opensource.org/licenses/MIT]
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* @author Ozan UYKUN [ozan@znframework.com]
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*/
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class ScriptPacker
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{
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/**
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* Protected $script
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*
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* @var string
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*/
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protected $script = '';
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/**
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* Protected $encoding
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*
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* @var int
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*/
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protected $encoding = 62;
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/**
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* Protected $fastDecode
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*
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* @var bool
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*/
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protected $fastDecode = true;
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/**
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* Protected $specialChars
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*
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* @var bool
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*/
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protected $specialChars = false;
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/**
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* Protected $parsers
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*
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* @var array
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*/
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protected $parsers = [];
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/**
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* Protected $count
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*
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* @var array
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*/
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protected $count = [];
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/**
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* Protected $buffer
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*
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* @var string
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*/
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protected $buffer;
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/**
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* Protected $literalEncoding
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*
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* @var array
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*/
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protected $literalEncoding =
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[
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'none' => 0,
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'numeric' => 10,
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'normal' => 62,
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'ascii' => 95
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];
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/**
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* Magic method constructor
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*
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* @param string $script
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* @param string $encoding = 'normal' - [none|numeric|normal|ascii]
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* @param bool $fastDecode = true
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* @param bool $specialChars = false
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*/
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public function __construct(string $script, string $encoding = 'normal', bool $fastDecode = true, bool $specialChars = false)
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{
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$this->script = $script . "\n";
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if( isset($this->literalEncoding[$encoding]) )
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{
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$encoding = $this->literalEncoding[$encoding];
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}
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$this->encoding = min((int)$encoding, 95);
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$this->fastDecode = $fastDecode;
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$this->specialChars = $specialChars;
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}
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/**
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* Pack
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*
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* @return string
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*/
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public function pack()
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{
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$this->addParser('basicCompression');
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if( $this->specialChars )
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{
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$this->addParser('encodeSpecialChars');
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}
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if( $this->encoding )
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{
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$this->addParser('encodeKeywords');
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}
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return $this->packing($this->script);
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}
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/**
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* Protected packing
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*/
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protected function packing($script)
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{
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for( $i = 0; isset($this->parsers[$i]); $i++ )
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{
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$script = call_user_func(array(&$this,$this->parsers[$i]), $script);
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}
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return $script;
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}
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/**
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* Protected add parser
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*/
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protected function addParser($parser)
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{
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$this->parsers[] = $parser;
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}
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/**
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* Protected basic compression
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*
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* zero encoding - just removal of white space and comments
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*/
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protected function basicCompression($script)
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{
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$parser = new ScriptParser();
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# make safe
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$parser->escapeChar = '\\';
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# protect strings
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$parser->add('/\'[^\'\\n\\r]*\'/', '$1');
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$parser->add('/"[^"\\n\\r]*"/', '$1');
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# remove comments
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$parser->add('/\\/\\/[^\\n\\r]*[\\n\\r]/', ' ');
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$parser->add('/\\/\\*[^*]*\\*+([^\\/][^*]*\\*+)*\\//', ' ');
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# protect regular expressions
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$parser->add('/\\s+(\\/[^\\/\\n\\r\\*][^\\/\\n\\r]*\\/g?i?)/', '$2'); // IGNORE
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$parser->add('/[^\\w\\x24\\/\'"*)\\?:]\\/[^\\/\\n\\r\\*][^\\/\\n\\r]*\\/g?i?/', '$1');
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# remove: ;;; doSomething();
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if( $this->specialChars )
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{
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$parser->add('/;;;[^\\n\\r]+[\\n\\r]/');
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}
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# remove redundant semi-colons
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$parser->add('/\\(;;\\)/', '$1'); # protect for (;;) loops
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$parser->add('/;+\\s*([};])/', '$2');
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# apply the above
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$script = $parser->exec($script);
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# remove white-space
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$parser->add('/(\\b|\\x24)\\s+(\\b|\\x24)/', '$2 $3');
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$parser->add('/([+\\-])\\s+([+\\-])/', '$2 $3');
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$parser->add('/\\s+/', '');
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return $parser->exec($script);
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}
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/**
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* Protected encode special chars
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*/
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protected function encodeSpecialChars($script)
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{
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$parser = new ScriptParser();
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# replace: $name -> n, $$name -> na
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$parser->add('/((\\x24+)([a-zA-Z$_]+))(\\d*)/', ['fn' => 'replaceName']);
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# replace: _name -> _0, double-underscore (__name) is ignored
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$regexp = '/\\b_[A-Za-z\\d]\\w*/';
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# build the word list
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$keywords = $this->analyze($script, $regexp, 'encodePrivate');
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# quick ref
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$encoded = $keywords['encoded'];
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# encode
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$parser->add($regexp, ['fn' => 'replaceEncoded', 'data' => $encoded]);
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return $parser->exec($script);
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}
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/**
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* Protected encode keywords
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*/
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protected function encodeKeywords($script)
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{
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# escape high-ascii values already in the script (i.e. in strings)
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if( $this->encoding > 62 )
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{
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$script = $this->escape95($script); // @codeCoverageIgnore
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}
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# create the parser
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$parser = new ScriptParser();
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$encode = $this->getEncoder($this->encoding);
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# for high-ascii, don't encode single character low-ascii
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$regexp = $this->encoding > 62 ? '/\\w\\w+/' : '/\\w+/';
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# build the word list
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$keywords = $this->analyze($script, $regexp, $encode);
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$encoded = $keywords['encoded'];
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# encode
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$parser->add($regexp, ['fn' => 'replaceEncoded', 'data' => $encoded]);
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if( empty($script) )
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{
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return $script; // @codeCoverageIgnore
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}
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else
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{
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return $this->bootstrap($parser->exec($script), $keywords);
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}
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}
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/**
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* Protected analyze
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*/
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protected function analyze($script, $regexp, $encode)
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{
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# analyse
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# retreive all words in the script
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$all = [];
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preg_match_all($regexp, $script, $all);
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$_sorted = []; # list of words sorted by frequency
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$_encoded = []; # dictionary of word->encoding
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$_protected = []; # instances of "protected" words
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$all = $all[0]; # simulate the javascript comportement of global match
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if( ! empty($all) )
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{
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$unsorted = []; # same list, not sorted
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$protected = []; # "protected" words (dictionary of word->"word")
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$value = []; # dictionary of charCode->encoding (eg. 256->ff)
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$this->count = []; # word->count
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$i = count($all); $j = 0; # $word = null;
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# count the occurrences - used for sorting later
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do
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{
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--$i;
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$word = '$' . $all[$i];
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if( ! isset($this->count[$word]) )
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{
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$this->count[$word] = 0;
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$unsorted[$j] = $word;
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# make a dictionary of all of the protected words in this script
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# these are words that might be mistaken for encoding
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# if (is_string($encode) && method_exists($this, $encode) )
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$values[$j] = call_user_func([&$this, $encode], $j);
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$protected['$' . $values[$j]] = $j++;
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}
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# increment the word counter
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$this->count[$word]++;
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} while ($i > 0);
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# prepare to sort the word list, first we must protect
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# words that are also used as codes. we assign them a code
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# equivalent to the word itself.
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# e.g. if "do" falls within our encoding range
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# then we store keywords["do"] = "do";
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# this avoids problems when decoding
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$i = count($unsorted);
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do
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{
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$word = $unsorted[--$i];
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// @codeCoverageIgnoreStart
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if( isset($protected[$word]) )
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{
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$_sorted[$protected[$word]] = substr($word, 1);
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$_protected[$protected[$word]] = true;
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$this->count[$word] = 0;
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}
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// @codeCoverageIgnoreEnd
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} while( $i );
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# sort the words by frequency
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# Note: the javascript and php version of sort can be different :
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# in php manual, usort :
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# " If two members compare as equal,
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# their order in the sorted array is undefined."
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# so the final packed script is different of the Dean's javascript version
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# but equivalent.
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# the ECMAscript standard does not guarantee this behaviour,
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# and thus not all browsers (e.g. Mozilla versions dating back to at
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# least 2003) respect this.
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usort($unsorted, [&$this, 'sortWords']);
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$j = 0;
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# because there are "protected" words in the list
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# we must add the sorted words around them
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do
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{
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if( ! isset($_sorted[$i]) )
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{
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$_sorted[$i] = substr($unsorted[$j++], 1);
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}
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$_encoded[$_sorted[$i]] = $values[$i];
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} while( ++$i < count($unsorted) );
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}
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return
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[
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'sorted' => $_sorted,
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'encoded' => $_encoded,
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'protected' => $_protected
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];
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}
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/**
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* Protected sort words
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*/
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protected function sortWords($match1, $match2)
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{
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return $this->count[$match2] - $this->count[$match1];
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}
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/**
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* Protected bootstrap
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*
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* build the boot function used for loading and decoding
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*/
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protected function bootstrap($packed, $keywords)
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{
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$ENCODE = $this->safeRegExp('$encode\\($count\\)');
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# $packed: the packed script
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$packed = "'" . $this->escape($packed) . "'";
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# $ascii: base for encoding
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$ascii = min(count($keywords['sorted']), $this->encoding);
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if( $ascii === 0 )
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{
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$ascii = 1; // @codeCoverageIgnore
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}
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# $count: number of words contained in the script
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$count = count($keywords['sorted']);
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# $keywords: list of words contained in the script
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foreach( $keywords['protected'] as $i => $value )
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{
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$keywords['sorted'][$i] = ''; // @codeCoverageIgnore
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}
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# convert from a string to an array
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ksort($keywords['sorted']);
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$keywords = "'" . implode('|',$keywords['sorted']) . "'.split('|')";
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$encode = ($this->encoding > 62) ? 'encode95' : $this->getEncoder($ascii);
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$encode = $this->getJSFunction($encode);
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$encode = preg_replace('/_encoding/','$ascii', $encode);
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$encode = preg_replace('/arguments\\.callee/','$encode', $encode);
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$inline = '\\$count' . ($ascii > 10 ? '.toString(\\$ascii)' : '');
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# $decode: code snippet to speed up decoding
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if( $this->fastDecode )
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{
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# create the decoder
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$decode = $this->getJSFunction('_decodeBody');
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if( $this->encoding > 62 )
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{
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$decode = preg_replace('/\\\\w/', '[\\xa1-\\xff]', $decode); // @codeCoverageIgnore
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}
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# perform the encoding inline for lower ascii values
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elseif( $ascii < 36 )
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{
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$decode = preg_replace($ENCODE, $inline, $decode);
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}
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# special case: when $count==0 there are no keywords. I want to keep
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# the basic shape of the unpacking funcion so i'll frig the code...
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if( $count === 0 )
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{
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$decode = preg_replace($this->safeRegExp('($count)\\s*=\\s*1'), '$1=0', $decode, 1); // @codeCoverageIgnore
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}
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}
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# boot function
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$unpack = $this->getJSFunction('_unpack');
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if( $this->fastDecode )
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{
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# insert the decoder
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$this->buffer = $decode;
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$unpack = preg_replace_callback('/\\{/', [&$this, 'insertFastDecode'], $unpack, 1);
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}
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$unpack = preg_replace('/"/', "'", $unpack);
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if( $this->encoding > 62 )
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{
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# high-ascii
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# get rid of the word-boundaries for regexp matches
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$unpack = preg_replace('/\'\\\\\\\\b\'\s*\\+|\\+\s*\'\\\\\\\\b\'/', '', $unpack); // @codeCoverageIgnore
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}
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if( $ascii > 36 || $this->encoding > 62 || $this->fastDecode )
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{
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# insert the encode function
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$this->buffer = $encode;
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$unpack = preg_replace_callback('/\\{/', [&$this, 'insertFastEncode'], $unpack, 1);
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}
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else
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{
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# perform the encoding inline
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$unpack = preg_replace($ENCODE, $inline, $unpack); // @codeCoverageIgnore
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}
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# pack the boot function too
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$unpackPacker = new ScriptPacker($unpack, 0, false, true);
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$unpack = $unpackPacker->pack();
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# arguments
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$params = [$packed, $ascii, $count, $keywords];
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||||
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if( $this->fastDecode )
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||||
{
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||||
$params[] = 0;
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$params[] = '{}';
|
||||
}
|
||||
|
||||
$params = implode(',', $params);
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||||
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# the whole thing
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||||
return 'eval(' . $unpack . '(' . $params . "))\n";
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||||
}
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||||
|
||||
/**
|
||||
* Protected insert fast decode
|
||||
*/
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||||
protected function insertFastDecode($match)
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||||
{
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||||
return '{' . $this->buffer . ';';
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected insert fast encode
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||||
*/
|
||||
protected function insertFastEncode($match)
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||||
{
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||||
return '{$encode=' . $this->buffer . ';';
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected get encoder
|
||||
*/
|
||||
protected function getEncoder($ascii)
|
||||
{
|
||||
return $ascii > 10 ?
|
||||
$ascii > 36 ?
|
||||
$ascii > 62 ? 'encode95' : 'encode62' : 'encode36' : 'encode10';
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected encode 10
|
||||
*
|
||||
* zero encoding
|
||||
* characters: 0123456789
|
||||
*/
|
||||
protected function encode10($charCode)
|
||||
{
|
||||
return $charCode; // @codeCoverageIgnore
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected encode 36
|
||||
*
|
||||
* inherent base36 support
|
||||
* characters: 0123456789abcdefghijklmnopqrstuvwxyz
|
||||
*
|
||||
* @codeCoverageIgnore
|
||||
*/
|
||||
protected function encode36($charCode)
|
||||
{
|
||||
return base_convert($charCode, 10, 36);
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected encode 62
|
||||
*
|
||||
* hitch a ride on base36 and add the upper case alpha characters
|
||||
* characters: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
|
||||
*
|
||||
*/
|
||||
protected function encode62($charCode)
|
||||
{
|
||||
$res = '';
|
||||
|
||||
if( $charCode >= $this->encoding )
|
||||
{
|
||||
$res = $this->encode62((int)($charCode / $this->encoding)); // @codeCoverageIgnore
|
||||
}
|
||||
|
||||
$charCode = $charCode % $this->encoding;
|
||||
|
||||
if( $charCode > 35 )
|
||||
{
|
||||
return $res . chr($charCode + 29); // @codeCoverageIgnore
|
||||
}
|
||||
else
|
||||
{
|
||||
return $res . base_convert($charCode, 10, 36);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected encode 95
|
||||
*
|
||||
* use high-ascii values
|
||||
* characters: ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþ
|
||||
*
|
||||
* @codeCoverageIgnore
|
||||
*/
|
||||
protected function encode95($charCode)
|
||||
{
|
||||
$res = '';
|
||||
|
||||
if( $charCode >= $this->encoding )
|
||||
{
|
||||
$res = $this->encode95($charCode / $this->encoding);
|
||||
}
|
||||
|
||||
return $res . chr(($charCode % $this->encoding) + 161);
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected safe regex expressions
|
||||
*/
|
||||
protected function safeRegExp($string)
|
||||
{
|
||||
return '/'.preg_replace('/\$/', '\\\$', $string).'/';
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected encode private
|
||||
*/
|
||||
protected function encodePrivate($charCode)
|
||||
{
|
||||
return "_" . $charCode; // @codeCoverageIgnore
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected escape
|
||||
*
|
||||
* protect characters used by the parser
|
||||
*/
|
||||
protected function escape($script)
|
||||
{
|
||||
return preg_replace('/([\\\\\'])/', '\\\$1', $script);
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected escape95
|
||||
*
|
||||
* protect high-ascii characters already in the script
|
||||
*
|
||||
* @codeCoverageIgnore
|
||||
*/
|
||||
protected function escape95($script)
|
||||
{
|
||||
return preg_replace_callback
|
||||
(
|
||||
'/[\\xa1-\\xff]/',
|
||||
[&$this, 'escape95Bis'],
|
||||
$script
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected escape 95 bis
|
||||
*
|
||||
* @codeCoverageIgnore
|
||||
*/
|
||||
protected function escape95Bis($match)
|
||||
{
|
||||
return '\x'.((string)dechex(ord($match)));
|
||||
}
|
||||
|
||||
/**
|
||||
* Protected get javascdript function
|
||||
*/
|
||||
protected function getJSFunction($aName)
|
||||
{
|
||||
if( defined($jsFunction = 'self::JSFUNCTION' . $aName) )
|
||||
{
|
||||
return constant($jsFunction);
|
||||
}
|
||||
|
||||
return ''; // @codeCoverageIgnore
|
||||
}
|
||||
|
||||
const 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 $packed;
|
||||
}';
|
||||
|
||||
const JSFUNCTION_decodeBody =
|
||||
' if (!\'\'.replace(/^/, String)) {
|
||||
// decode all the values we need
|
||||
while ($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
|
||||
$count = 1;
|
||||
}
|
||||
';
|
||||
|
||||
const JSFUNCTIONencode10 =
|
||||
'function($charCode) {
|
||||
return $charCode;
|
||||
}';
|
||||
|
||||
const JSFUNCTIONencode36 =
|
||||
'function($charCode) {
|
||||
return $charCode.toString(36);
|
||||
}';
|
||||
|
||||
const JSFUNCTIONencode62 =
|
||||
'function($charCode) {
|
||||
return ($charCode < _encoding ? \'\' : arguments.callee(parseInt($charCode / _encoding))) +
|
||||
(($charCode = $charCode % _encoding) > 35 ? String.fromCharCode($charCode + 29) : $charCode.toString(36));
|
||||
}';
|
||||
|
||||
const JSFUNCTIONencode95 =
|
||||
'function($charCode) {
|
||||
return ($charCode < _encoding ? \'\' : arguments.callee($charCode / _encoding)) +
|
||||
String.fromCharCode($charCode % _encoding + 161);
|
||||
}';
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user