+++ /dev/null
-<?php
-// $Id: class.zipfile.php,v 1.1 2007/05/15 02:34:21 minahito Exp $
-/*
- package::i.tools
-
- php-downloader v1.0 - www.ipunkt.biz
-
- (c) 2002 - www.ipunkt.biz (rok)
-
- * Zip file creation class.
- * Makes zip files.
- *
- * Based on :
- *
- * http://www.zend.com/codex.php?id=535&single=1
- * By Eric Mueller <eric@themepark.com>
- *
- * http://www.zend.com/codex.php?id=470&single=1
- * by Denis125 <webmaster@atlant.ru>
- *
- * a patch from Peter Listiak <mlady@users.sourceforge.net> for last modified
- * date and time of the compressed file
- *
- * Official ZIP file format: http://www.pkware.com/appnote.txt
- *
- * @copyright (c) 2002 - www.ipunkt.biz (rok)
- * @access public
- *
- * @package kernel
- * @subpackage core
- */
-class zipfile
-{
- /**
- * Array to store compressed data
- *
- * @var array $datasec
- */
- var $datasec = array();
-
- /**
- * Central directory
- *
- * @var array $ctrl_dir
- */
- var $ctrl_dir = array();
-
- /**
- * End of central directory record
- *
- * @var string $eof_ctrl_dir
- */
- var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
-
- /**
- * Last offset position
- *
- * @var integer $old_offset
- */
- var $old_offset = 0;
-
-
- /**
- * Converts an Unix timestamp to a four byte DOS date and time format (date
- * in high two bytes, time in low two bytes allowing magnitude comparison).
- *
- * @param integer the current Unix timestamp
- *
- * @return integer the current date in a four byte DOS format
- *
- * @access private
- */
- function unix2DosTime($unixtime = 0)
- {
- $timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);
-
- if ($timearray['year'] < 1980) {
- $timearray['year'] = 1980;
- $timearray['mon'] = 1;
- $timearray['mday'] = 1;
- $timearray['hours'] = 0;
- $timearray['minutes'] = 0;
- $timearray['seconds'] = 0;
- } // end if
-
- return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
- ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
- } // end of the 'unix2DosTime()' method
-
-
- /**
- * Adds "file" to archive
- *
- * @param string file contents
- * @param string name of the file in the archive (may contains the path)
- * @param integer the current timestamp
- *
- * @access public
- */
- function addFile($data, $name, $time = 0)
- {
- $name = str_replace('\\', '/', $name);
-
- $dtime = dechex($this->unix2DosTime($time));
- $hexdtime = '\x' . $dtime[6] . $dtime[7]
- . '\x' . $dtime[4] . $dtime[5]
- . '\x' . $dtime[2] . $dtime[3]
- . '\x' . $dtime[0] . $dtime[1];
- eval('$hexdtime = "' . $hexdtime . '";');
-
- $fr = "\x50\x4b\x03\x04";
- $fr .= "\x14\x00"; // ver needed to extract
- $fr .= "\x00\x00"; // gen purpose bit flag
- $fr .= "\x08\x00"; // compression method
- $fr .= $hexdtime; // last mod time and date
-
- // "local file header" segment
- $unc_len = strlen($data);
- $crc = crc32($data);
- $zdata = gzcompress($data);
- $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); // fix crc bug
- $c_len = strlen($zdata);
- $fr .= pack('V', $crc); // crc32
- $fr .= pack('V', $c_len); // compressed filesize
- $fr .= pack('V', $unc_len); // uncompressed filesize
- $fr .= pack('v', strlen($name)); // length of filename
- $fr .= pack('v', 0); // extra field length
- $fr .= $name;
-
- // "file data" segment
- $fr .= $zdata;
-
- // "data descriptor" segment (optional but necessary if archive is not
- // served as file)
- $fr .= pack('V', $crc); // crc32
- $fr .= pack('V', $c_len); // compressed filesize
- $fr .= pack('V', $unc_len); // uncompressed filesize
-
- // add this entry to array
- $this -> datasec[] = $fr;
- $new_offset = strlen(implode('', $this->datasec));
-
- // now add to central directory record
- $cdrec = "\x50\x4b\x01\x02";
- $cdrec .= "\x00\x00"; // version made by
- $cdrec .= "\x14\x00"; // version needed to extract
- $cdrec .= "\x00\x00"; // gen purpose bit flag
- $cdrec .= "\x08\x00"; // compression method
- $cdrec .= $hexdtime; // last mod time & date
- $cdrec .= pack('V', $crc); // crc32
- $cdrec .= pack('V', $c_len); // compressed filesize
- $cdrec .= pack('V', $unc_len); // uncompressed filesize
- $cdrec .= pack('v', strlen($name) ); // length of filename
- $cdrec .= pack('v', 0 ); // extra field length
- $cdrec .= pack('v', 0 ); // file comment length
- $cdrec .= pack('v', 0 ); // disk number start
- $cdrec .= pack('v', 0 ); // internal file attributes
- $cdrec .= pack('V', 32 ); // external file attributes - 'archive' bit set
-
- $cdrec .= pack('V', $this -> old_offset ); // relative offset of local header
- $this -> old_offset = $new_offset;
-
- $cdrec .= $name;
-
- // optional extra field, file comment goes here
- // save to central directory
- $this -> ctrl_dir[] = $cdrec;
- } // end of the 'addFile()' method
-
-
- /**
- * Dumps out file
- *
- * @return string the zipped file
- *
- * @access public
- */
- function file()
- {
- $data = implode('', $this -> datasec);
- $ctrldir = implode('', $this -> ctrl_dir);
-
- return
- $data .
- $ctrldir .
- $this -> eof_ctrl_dir .
- pack('v', count($this -> ctrl_dir)) . // total # of entries "on this disk"
- pack('v', count($this -> ctrl_dir)) . // total # of entries overall
- pack('V', strlen($ctrldir)) . // size of central dir
- pack('V', strlen($data)) . // offset to start of central dir
- "\x00\x00"; // .zip file comment length
- } // end of the 'file()' method
-
-} // end of the 'zipfile' class
-
-?>
\ No newline at end of file
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