lifetype-1.2/class/file/unpacker/unpacker.class.php

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<?php

    lt_include( PLOG_CLASS_PATH."class/file/unpacker/baseunpacker.class.php" );
    lt_include( PLOG_CLASS_PATH."class/file/unpacker/targzunpacker.class.php" );
    lt_include( PLOG_CLASS_PATH."class/file/unpacker/zipunpacker.class.php" );
    lt_include( PLOG_CLASS_PATH."class/file/unpacker/tarbz2unpacker.class.php" );
    lt_include( PLOG_CLASS_PATH."class/file/unpacker/rarunpacker.class.php" );

        define( "UNPACKER_AUTODETECT", "detect" );
        define( "UNPACKER_TAR_GZ", "tar.gz" );
    define( "UNPACKER_TAR_BZ2", "tar.bz2" );
    define( "UNPACKER_ZIP", "zip" );
    define( "UNPACKER_RAR", "rar" );
    define( "UNPACKER_UNSUPPORTED", false );

        class Unpacker  
        {

        var $_methods = Array( "tar.gz"  => "TarGzUnpacker",
                           "zip"     => "ZipUnpacker",
                           "tar.bz2" => "TarBz2Unpacker",
                           "rar" => "RarUnpacker"
                         );

        var $_method;

        var $_unpackerObj;

        function Unpacker( $method = UNPACKER_AUTODETECT )
        {
                

                $this->_method = $method;
        }

        function _findUnpacker()
        {
                if( $this->_method == UNPACKER_AUTODETECT ) {
                $extArray = explode( ".", $this->_file );

                $ext = $extArray[count($extArray)-1];
                $ext2 = $extArray[count($extArray)-2].".".$ext;

                if( isset($this->_methods[$ext]))
                        $this->_method = $ext;
                elseif( isset($this->_methods[$ext2]))
                        $this->_method = $ext2;
                else
                        $this->_method = UNPACKER_UNSUPPORTED;
            }

            // create the object
            if( $this->_method != UNPACKER_UNSUPPORTED ) {
                $this->_unpacker = new $this->_methods[$this->_method]();
                $result = true;
            }
            else
                $result = false;

            return $result;
        }

        function unpack( $file, $destFolder = "./" )
        {
                // find the most suitable unpacker mechanism
            $this->_file = $file;

                if( !$this->_findUnpacker())
                return UNPACKER_UNSUPPORTED;

            // and then just do it
                return $this->_unpacker->unpack( $file, $destFolder );
        }
    }
?>

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