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-rw-r--r--system/libraries/Zip.php758
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
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-10 03:28:22 +0100