diff options
author | Derek Allard <derek.allard@ellislab.com> | 2007-04-15 19:41:17 +0200 |
---|---|---|
committer | Derek Allard <derek.allard@ellislab.com> | 2007-04-15 19:41:17 +0200 |
commit | d2df9bc7cc9d4b3e53818470c5d0977c9a36677c (patch) | |
tree | 23c0794fefaa6860ec997813fefb9c64fcee1983 /system/libraries/Zip.php | |
parent | 9613e2c136c96fbb1d055b36a0a5055811f03451 (diff) |
update pMachine to EllisLab
update copyright year
update Code Igniter to CodeIgniter
Diffstat (limited to 'system/libraries/Zip.php')
-rw-r--r-- | system/libraries/Zip.php | 758 |
1 files changed, 379 insertions, 379 deletions
diff --git a/system/libraries/Zip.php b/system/libraries/Zip.php index 1ff175fe2..377c38741 100644 --- a/system/libraries/Zip.php +++ b/system/libraries/Zip.php @@ -1,380 +1,380 @@ -<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); -/** - * Code Igniter - * - * An open source application development framework for PHP 4.3.2 or newer - * - * @package CodeIgniter - * @author Rick Ellis - * @copyright Copyright (c) 2006, pMachine, Inc. - * @license http://www.codeignitor.com/user_guide/license.html - * @link http://www.codeigniter.com - * @since Version 1.0 - * @filesource - */ - -// ------------------------------------------------------------------------ - -/** - * Zip Compression Class - * - * This class is based on a library I found at Zend: - * http://www.zend.com/codex.php?id=696&single=1 - * - * The original library is a little rough around the edges so I - * refactored it and added several additional methods -- Rick Ellis - * - * @package CodeIgniter - * @subpackage Libraries - * @category Encryption - * @author Rick Ellis - * @link http://www.codeigniter.com/user_guide/libraries/zip.html - */ -class CI_Zip { - - var $zipfile = ''; - var $zipdata = array(); - var $directory = array(); - var $offset = 0; - - function CI_Zip() - { - log_message('debug', "Zip Compression Class Initialized"); - } - - // -------------------------------------------------------------------- - - /** - * Add Directory - * - * Lets you add a virtual directory into which you can place files. - * - * @access public - * @param mixed the directory name. Can be string or array - * @return void - */ - function add_dir($directory) - { - foreach ((array)$directory as $dir) - { - if ( ! preg_match("|.+/$|", $dir)) - { - $dir .= '/'; - } - - $this->_add_dir($dir); - } - } - - // -------------------------------------------------------------------- - - /** - * Add Directory - * - * @access private - * @param string the directory name - * @return void - */ - function _add_dir($dir) - { - $dir = str_replace("\\", "/", $dir); - - $this->zipdata[] = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" - .pack('V', 0) - .pack('V', 0) - .pack('V', 0) - .pack('v', strlen($dir)) - .pack('v', 0) - .$dir - .pack('V', 0) - .pack('V', 0) - .pack('V', 0); - - $newoffset = strlen(implode('', $this->zipdata)); - - $record = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" - .pack('V',0) - .pack('V',0) - .pack('V',0) - .pack('v', strlen($dir)) - .pack('v', 0) - .pack('v', 0) - .pack('v', 0) - .pack('v', 0) - .pack('V', 16) - .pack('V', $this->offset) - .$dir; - - $this->offset = $newoffset; - $this->directory[] = $record; - } - - // -------------------------------------------------------------------- - - /** - * Add Data to Zip - * - * Lets you add files to the archive. If the path is included - * in the filename it will be placed within a directory. Make - * sure you use add_dir() first to create the folder. - * - * @access public - * @param mixed - * @param string - * @return void - */ - function add_data($filepath, $data = NULL) - { - if (is_array($filepath)) - { - foreach ($filepath as $path => $data) - { - $this->_add_data($path, $data); - } - } - else - { - $this->_add_data($filepath, $data); - } - } - - // -------------------------------------------------------------------- - - /** - * Add Data to Zip - * - * @access private - * @param string the file name/path - * @param string the data to be encoded - * @return void - */ - function _add_data($filepath, $data) - { - $filepath = str_replace("\\", "/", $filepath); - - $oldlen = strlen($data); - $crc32 = crc32($data); - - $gzdata = gzcompress($data); - $gzdata = substr(substr($gzdata, 0, strlen($gzdata) - 4), 2); - $newlen = strlen($gzdata); - - $this->zipdata[] = "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" - .pack('V', $crc32) - .pack('V', $newlen) - .pack('V', $oldlen) - .pack('v', strlen($filepath)) - .pack('v', 0) - .$filepath - .$gzdata - .pack('V', $crc32) - .pack('V', $newlen) - .pack('V', $oldlen); - - $newoffset = strlen(implode("", $this->zipdata)); - - $record = "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" - .pack('V', $crc32) - .pack('V', $newlen) - .pack('V', $oldlen) - .pack('v', strlen($filepath)) - .pack('v', 0) - .pack('v', 0) - .pack('v', 0) - .pack('v', 0) - .pack('V', 32) - .pack('V', $this->offset); - - $this->offset = $newoffset; - $this->directory[] = $record.$filepath; - } - - // -------------------------------------------------------------------- - - /** - * Read the contents of a file and add it to the zip - * - * @access public - * @return bool - */ - function read_file($path, $preserve_filepath = FALSE) - { - if ( ! file_exists($path)) - { - return FALSE; - } - - if (FALSE !== ($data = file_get_contents($path))) - { - $name = str_replace("\\", "/", $path); - - if ($preserve_filepath === FALSE) - { - $name = preg_replace("|.*/(.+)|", "\\1", $name); - } - - $this->add_data($name, $data); - return TRUE; - } - return FALSE; - } - - // ------------------------------------------------------------------------ - - /** - * Read a directory and add it to the zip. - * - * This function recursively reads a folder and everything it contains (including - * sub-folders) and creates a zip based on it. Whatever directory structure - * is in the original file path will be recreated in the zip file. - * - * @access public - * @param string path to source - * @return bool - */ - function read_dir($path) - { - if ($fp = @opendir($path)) - { - while (FALSE !== ($file = readdir($fp))) - { - if (@is_dir($path.$file) && substr($file, 0, 1) != '.') - { - $this->read_dir($path.$file."/"); - } - elseif (substr($file, 0, 1) != ".") - { - if (FALSE !== ($data = file_get_contents($path.$file))) - { - $this->add_data(str_replace("\\", "/", $path).$file, $data); - } - } - } - return TRUE; - } - } - - // -------------------------------------------------------------------- - - /** - * Get the Zip file - * - * @access public - * @return binary string - */ - function get_zip() - { - // We cache the zip data so multiple calls - // do not require recompiling - if ($this->zipfile != '') - { - return $this->zipfile; - } - - // Is there any data to return? - if (count($this->zipdata) == 0) - { - return FALSE; - } - - $data = implode('', $this->zipdata); - $dir = implode('', $this->directory); - - $this->zipfile = $data.$dir."\x50\x4b\x05\x06\x00\x00\x00\x00" - .pack('v', sizeof($this->directory)) - .pack('v', sizeof($this->directory)) - .pack('V', strlen($dir)) - .pack('V', strlen($data)) - ."\x00\x00"; - - return $this->zipfile; - } - - // -------------------------------------------------------------------- - - /** - * Write File to the specified directory - * - * Lets you write a file - * - * @access public - * @param string the file name - * @param string the data to be encoded - * @return bool - */ - function archive($filepath) - { - if ( ! ($fp = @fopen($filepath, "wb"))) - { - return FALSE; - } - - flock($fp, LOCK_EX); - fwrite($fp, $this->get_zip()); - flock($fp, LOCK_UN); - fclose($fp); - - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Download - * - * @access public - * @param string the file name - * @param string the data to be encoded - * @return bool - */ - function download($filename = 'backup.zip') - { - if ( ! preg_match("|.+?\.zip$|", $filename)) - { - $filename .= '.zip'; - } - - if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) - { - header('Content-Type: application/x-zip'); - header('Content-Disposition: inline; filename="'.$filename.'"'); - header('Expires: 0'); - header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); - header("Content-Transfer-Encoding: binary"); - header('Pragma: public'); - header("Content-Length: ".strlen($this->get_zip())); - } - else - { - header('Content-Type: application/x-zip'); - header('Content-Disposition: attachment; filename="'.$filename.'"'); - header("Content-Transfer-Encoding: binary"); - header('Expires: 0'); - header('Pragma: no-cache'); - header("Content-Length: ".strlen($this->get_zip())); - } - - echo $this->get_zip(); - } - - // -------------------------------------------------------------------- - - /** - * Initialize Data - * - * Lets you clear current zip data. Useful if you need to create - * multiple zips with different data. - * - * @access public - * @return void - */ - function clear_data() - { - $this->zipfile = ''; - $this->zipdata = array(); - $this->directory = array(); - $this->offset = array(); - } - -} +<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author Rick Ellis
+ * @copyright Copyright (c) 2006, EllisLab, Inc.
+ * @license http://www.codeignitor.com/user_guide/license.html
+ * @link http://www.codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Zip Compression Class
+ *
+ * This class is based on a library I found at Zend:
+ * http://www.zend.com/codex.php?id=696&single=1
+ *
+ * The original library is a little rough around the edges so I
+ * refactored it and added several additional methods -- Rick Ellis
+ *
+ * @package CodeIgniter
+ * @subpackage Libraries
+ * @category Encryption
+ * @author Rick Ellis
+ * @link http://www.codeigniter.com/user_guide/libraries/zip.html
+ */
+class CI_Zip {
+
+ var $zipfile = '';
+ var $zipdata = array();
+ var $directory = array();
+ var $offset = 0;
+
+ function CI_Zip()
+ {
+ log_message('debug', "Zip Compression Class Initialized");
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Add Directory
+ *
+ * Lets you add a virtual directory into which you can place files.
+ *
+ * @access public
+ * @param mixed the directory name. Can be string or array
+ * @return void
+ */
+ function add_dir($directory)
+ {
+ foreach ((array)$directory as $dir)
+ {
+ if ( ! preg_match("|.+/$|", $dir))
+ {
+ $dir .= '/';
+ }
+
+ $this->_add_dir($dir);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Add Directory
+ *
+ * @access private
+ * @param string the directory name
+ * @return void
+ */
+ function _add_dir($dir)
+ {
+ $dir = str_replace("\\", "/", $dir);
+
+ $this->zipdata[] = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ .pack('V', 0)
+ .pack('V', 0)
+ .pack('V', 0)
+ .pack('v', strlen($dir))
+ .pack('v', 0)
+ .$dir
+ .pack('V', 0)
+ .pack('V', 0)
+ .pack('V', 0);
+
+ $newoffset = strlen(implode('', $this->zipdata));
+
+ $record = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ .pack('V',0)
+ .pack('V',0)
+ .pack('V',0)
+ .pack('v', strlen($dir))
+ .pack('v', 0)
+ .pack('v', 0)
+ .pack('v', 0)
+ .pack('v', 0)
+ .pack('V', 16)
+ .pack('V', $this->offset)
+ .$dir;
+
+ $this->offset = $newoffset;
+ $this->directory[] = $record;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Add Data to Zip
+ *
+ * Lets you add files to the archive. If the path is included
+ * in the filename it will be placed within a directory. Make
+ * sure you use add_dir() first to create the folder.
+ *
+ * @access public
+ * @param mixed
+ * @param string
+ * @return void
+ */
+ function add_data($filepath, $data = NULL)
+ {
+ if (is_array($filepath))
+ {
+ foreach ($filepath as $path => $data)
+ {
+ $this->_add_data($path, $data);
+ }
+ }
+ else
+ {
+ $this->_add_data($filepath, $data);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Add Data to Zip
+ *
+ * @access private
+ * @param string the file name/path
+ * @param string the data to be encoded
+ * @return void
+ */
+ function _add_data($filepath, $data)
+ {
+ $filepath = str_replace("\\", "/", $filepath);
+
+ $oldlen = strlen($data);
+ $crc32 = crc32($data);
+
+ $gzdata = gzcompress($data);
+ $gzdata = substr(substr($gzdata, 0, strlen($gzdata) - 4), 2);
+ $newlen = strlen($gzdata);
+
+ $this->zipdata[] = "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00"
+ .pack('V', $crc32)
+ .pack('V', $newlen)
+ .pack('V', $oldlen)
+ .pack('v', strlen($filepath))
+ .pack('v', 0)
+ .$filepath
+ .$gzdata
+ .pack('V', $crc32)
+ .pack('V', $newlen)
+ .pack('V', $oldlen);
+
+ $newoffset = strlen(implode("", $this->zipdata));
+
+ $record = "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00"
+ .pack('V', $crc32)
+ .pack('V', $newlen)
+ .pack('V', $oldlen)
+ .pack('v', strlen($filepath))
+ .pack('v', 0)
+ .pack('v', 0)
+ .pack('v', 0)
+ .pack('v', 0)
+ .pack('V', 32)
+ .pack('V', $this->offset);
+
+ $this->offset = $newoffset;
+ $this->directory[] = $record.$filepath;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Read the contents of a file and add it to the zip
+ *
+ * @access public
+ * @return bool
+ */
+ function read_file($path, $preserve_filepath = FALSE)
+ {
+ if ( ! file_exists($path))
+ {
+ return FALSE;
+ }
+
+ if (FALSE !== ($data = file_get_contents($path)))
+ {
+ $name = str_replace("\\", "/", $path);
+
+ if ($preserve_filepath === FALSE)
+ {
+ $name = preg_replace("|.*/(.+)|", "\\1", $name);
+ }
+
+ $this->add_data($name, $data);
+ return TRUE;
+ }
+ return FALSE;
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * Read a directory and add it to the zip.
+ *
+ * This function recursively reads a folder and everything it contains (including
+ * sub-folders) and creates a zip based on it. Whatever directory structure
+ * is in the original file path will be recreated in the zip file.
+ *
+ * @access public
+ * @param string path to source
+ * @return bool
+ */
+ function read_dir($path)
+ {
+ if ($fp = @opendir($path))
+ {
+ while (FALSE !== ($file = readdir($fp)))
+ {
+ if (@is_dir($path.$file) && substr($file, 0, 1) != '.')
+ {
+ $this->read_dir($path.$file."/");
+ }
+ elseif (substr($file, 0, 1) != ".")
+ {
+ if (FALSE !== ($data = file_get_contents($path.$file)))
+ {
+ $this->add_data(str_replace("\\", "/", $path).$file, $data);
+ }
+ }
+ }
+ return TRUE;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Get the Zip file
+ *
+ * @access public
+ * @return binary string
+ */
+ function get_zip()
+ {
+ // We cache the zip data so multiple calls
+ // do not require recompiling
+ if ($this->zipfile != '')
+ {
+ return $this->zipfile;
+ }
+
+ // Is there any data to return?
+ if (count($this->zipdata) == 0)
+ {
+ return FALSE;
+ }
+
+ $data = implode('', $this->zipdata);
+ $dir = implode('', $this->directory);
+
+ $this->zipfile = $data.$dir."\x50\x4b\x05\x06\x00\x00\x00\x00"
+ .pack('v', sizeof($this->directory))
+ .pack('v', sizeof($this->directory))
+ .pack('V', strlen($dir))
+ .pack('V', strlen($data))
+ ."\x00\x00";
+
+ return $this->zipfile;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Write File to the specified directory
+ *
+ * Lets you write a file
+ *
+ * @access public
+ * @param string the file name
+ * @param string the data to be encoded
+ * @return bool
+ */
+ function archive($filepath)
+ {
+ if ( ! ($fp = @fopen($filepath, "wb")))
+ {
+ return FALSE;
+ }
+
+ flock($fp, LOCK_EX);
+ fwrite($fp, $this->get_zip());
+ flock($fp, LOCK_UN);
+ fclose($fp);
+
+ return TRUE;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Download
+ *
+ * @access public
+ * @param string the file name
+ * @param string the data to be encoded
+ * @return bool
+ */
+ function download($filename = 'backup.zip')
+ {
+ if ( ! preg_match("|.+?\.zip$|", $filename))
+ {
+ $filename .= '.zip';
+ }
+
+ if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE"))
+ {
+ header('Content-Type: application/x-zip');
+ header('Content-Disposition: inline; filename="'.$filename.'"');
+ header('Expires: 0');
+ header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
+ header("Content-Transfer-Encoding: binary");
+ header('Pragma: public');
+ header("Content-Length: ".strlen($this->get_zip()));
+ }
+ else
+ {
+ header('Content-Type: application/x-zip');
+ header('Content-Disposition: attachment; filename="'.$filename.'"');
+ header("Content-Transfer-Encoding: binary");
+ header('Expires: 0');
+ header('Pragma: no-cache');
+ header("Content-Length: ".strlen($this->get_zip()));
+ }
+
+ echo $this->get_zip();
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Initialize Data
+ *
+ * Lets you clear current zip data. Useful if you need to create
+ * multiple zips with different data.
+ *
+ * @access public
+ * @return void
+ */
+ function clear_data()
+ {
+ $this->zipfile = '';
+ $this->zipdata = array();
+ $this->directory = array();
+ $this->offset = array();
+ }
+
+}
?>
\ No newline at end of file |