<?php
# -- BEGIN LICENSE BLOCK ----------------------------------
#
# This file is part of pacKman, a plugin for Dotclear 2.
# 
# Copyright (c) 2009-2013 Jean-Christian Denis and contributors
# contact@jcdenis.fr http://jcd.lv
# 
# Licensed under the GPL version 2.0 license.
# A copy of this license is available in LICENSE file or at
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
#
# -- END LICENSE BLOCK ------------------------------------

class packmanFileZip extends fileZip
{
	protected function writeFile($name,$file,$size,$mtime)
	{
		if (!isset($this->entries[$name])) {
			return;
		}
		
		$size = filesize($file);
		$this->memoryAllocate($size*3);
		
		$content = file_get_contents($file);
		
		//cleanup file contents
		// at this time only php files
		if (substr($file,-4) == '.php') {
			$content = self::removePHPComment($content);
		}
		
		$unc_len	= strlen($content);
		$crc		= crc32($content);
		$zdata	= gzdeflate($content);
		$c_len	= strlen($zdata);
		
		unset($content);
		
		$mdate = $this->makeDate($mtime);
		$mtime = $this->makeTime($mtime);
		
		# Data descriptor
		$data_desc =
		"\x50\x4b\x03\x04".
		"\x14\x00".			# ver needed to extract
		"\x00\x00".			# gen purpose bit flag
		"\x08\x00".			# compression method
		pack('v',$mtime).		# last mod time
		pack('v',$mdate).		# last mod date
		pack('V',$crc).		# crc32
		pack('V',$c_len).		# compressed filesize
		pack('V',$unc_len).		# uncompressed filesize
		pack('v',strlen($name)).	# length of filename
		pack('v',0).			# extra field length
		$name.				# end of "local file header" segment
		$zdata.				# "file data" segment
		pack('V',$crc).		# crc32
		pack('V',$c_len).		# compressed filesize
		pack('V',$unc_len);		# uncompressed filesize
		
		fwrite($this->fp,$data_desc);
		unset($zdata);
		
		$new_offset = $this->old_offset + strlen($data_desc);
		
		# Add to central directory record
		$cdrec =
		"\x50\x4b\x01\x02".
		"\x00\x00".				# version made by
		"\x14\x00".				# version needed to extract
		"\x00\x00".				# gen purpose bit flag
		"\x08\x00".				# compression method
		pack('v',$mtime).			# last mod time
		pack('v',$mdate).			# last mod date
		pack('V',$crc).			# crc32
		pack('V',$c_len).			# compressed filesize
		pack('V',$unc_len).			# uncompressed filesize
		pack('v',strlen($name)).		# length of filename
		pack('v',0).				# extra field length
		pack('v',0).				# file comment length
		pack('v',0).				# disk number start
		pack('v',0).				# internal file attributes
		pack('V',32).				# external file attributes - 'archive' bit set
		pack('V',$this->old_offset).	# relative offset of local header
		$name;
		
		$this->old_offset = $new_offset;
		$this->ctrl_dir[] = $cdrec;
	}
	
	protected static function removePHPComment($content)
	{
		$comment = array(T_COMMENT);
		if (defined('T_DOC_COMMENT')) {
			$comment[] = T_DOC_COMMENT; // PHP 5
		}
		if (defined('T_ML_COMMENT')) {
			$comment[] = T_ML_COMMENT; // PHP 4
		}
		
		$newStr = '';
		$tokens = token_get_all($content);
		
		foreach ($tokens as $token)
		{
			if (is_array($token))
			{
				if (in_array($token[0],$comment)) {
					//$newStr .= "\n";
				}
				else {
					$newStr .= $token[1];
				}
			}
			else {
				$newStr .= $token;
			}
		}
		return $newStr;
	}
}
?>