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Diffstat (limited to 'extras/zipfile.class.php')
| -rw-r--r-- | extras/zipfile.class.php | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/extras/zipfile.class.php b/extras/zipfile.class.php deleted file mode 100644 index 2d377cc..0000000 --- a/extras/zipfile.class.php +++ /dev/null @@ -1,190 +0,0 @@ -<?php -/* vim: set expandtab sw=4 ts=4 sts=4: */ -/** - * - * @version $Id$ - */ - -/** - * 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 - * - * @access public - */ -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 .= $zdata; - - // "data descriptor" segment (optional but necessary if archive is not - // served as file) - // nijel(2004-10-19): this seems not to be needed at all and causes - // problems in some cases (bug #1037737) - //$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; - - // 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 - $this -> old_offset += strlen($fr); - - $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 . - $this -> eof_ctrl_dir . - pack('v', sizeof($this -> ctrl_dir)) . // total # of entries "on this disk" - pack('v', sizeof($this -> ctrl_dir)) . // total # of entries overall - pack('V', strlen($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 -?> |