Mambo API

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   1  <?php
   2  /**
   3  * @package Mambo
   4  */ 
   5  
   6  /** ensure this file is being included by a parent file */
   7  defined( '_VALID_MOS' ) or die( 'Direct Access to this location is not allowed.' );
   8  
   9  // $Id: zip.lib.php,v 1.1 2005/07/22 01:53:54 eddieajau Exp $
  10  //
  11  // The "GNU General Public License" (GPL) is available at
  12  // http://www.opensource.org/licenses/gpl-2.0.php.
  13  //   
  14  //  http://www.zend.com/codex.php?id=535&single=1
  15  //    By Eric Mueller <eric@themepark.com>
  16  //
  17  //    http://www.zend.com/codex.php?id=470&single=1
  18  //    by Denis125 <webmaster@atlant.ru>
  19  //
  20  //    A patch from Peter Listiak <mlady@users.sourceforge.net> for last modified
  21  //    date and time of the compressed file
  22  //
  23  //    Official ZIP file format: http://www.pkware.com/appnote.txt
  24  
  25  // ensure this file is being included by a parent file
  26  defined( '_VALID_MOS' ) or die( 'Direct Access to this location is not allowed.' );
  27  
  28  class zipfile {
  29      var $datasec = array();
  30      var $ctrl_dir = array();
  31      var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
  32      var $old_offset = 0;
  33      
  34  	function unix2DosTime($unixtime = 0) {
  35          $timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);
  36          if ($timearray['year'] < 1980) {
  37              $timearray['year']    = 1980;
  38              $timearray['mon']     = 1;
  39              $timearray['mday']    = 1;
  40              $timearray['hours']   = 0;
  41              $timearray['minutes'] = 0;
  42              $timearray['seconds'] = 0;
  43          }
  44          return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) | ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
  45      }
  46      
  47  	function addFile($data, $name, $time = 0) {
  48          $name     = str_replace('\\', '/', $name);
  49          
  50          $dtime    = dechex($this->unix2DosTime($time));
  51          $hexdtime = '\x' . $dtime[6] . $dtime[7] . '\x' . $dtime[4] . $dtime[5] . '\x' . $dtime[2] . $dtime[3] . '\x' . $dtime[0] . $dtime[1];
  52          eval('$hexdtime = "' . $hexdtime . '";');
  53          
  54          $fr = "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00" . $hexdtime;
  55          
  56          $unc_len = strlen($data);
  57          $crc = crc32($data);
  58          $zdata = gzcompress($data);
  59          $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
  60          $c_len   = strlen($zdata);
  61          $fr .= pack('V', $crc) . pack('V', $c_len) . pack('V', $unc_len) . pack('v', strlen($name)) . pack('v', 0) . $name . $zdata . pack('V', $crc) . pack('V', $c_len) . pack('V', $unc_len);
  62          
  63          $this -> datasec[] = $fr;
  64          $new_offset = strlen(implode('', $this->datasec));
  65          
  66          $cdrec = "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00" . $hexdtime . pack('V', $crc) . pack('V', $c_len) . pack('V', $unc_len) . pack('v', strlen($name)) . pack('v', 0) . pack('v', 0) . pack('v', 0) . pack('v', 0) . pack('V', 32) . pack('V', $this -> old_offset );
  67          $this -> old_offset = $new_offset;
  68          $cdrec .= $name;
  69          $this -> ctrl_dir[] = $cdrec;
  70      }
  71      
  72  	function file() {
  73          $data = implode('', $this -> datasec);
  74          $ctrldir = implode('', $this -> ctrl_dir);
  75          return $data . $ctrldir . $this -> eof_ctrl_dir . pack('v', sizeof($this -> ctrl_dir)) .  pack('v', sizeof($this -> ctrl_dir)) .  pack('V', strlen($ctrldir)) . pack('V', strlen($data)) . "\x00\x00";
  76      }
  77  }
  78  ?>