Changing EOL style to LF

1 files changed, 930 insertions, 930 deletions

diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index 3832dab06..54124bc3d 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -1,931 +1,931 @@
-<?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		ExpressionEngine Dev Team

- * @copyright	Copyright (c) 2008, EllisLab, Inc.

- * @license		http://codeigniter.com/user_guide/license.html

- * @link		http://codeigniter.com

- * @since		Version 1.0

- * @filesource

- */

-

-// ------------------------------------------------------------------------

-

-/**

- * File Uploading Class

- *

- * @package		CodeIgniter

- * @subpackage	Libraries

- * @category	Uploads

- * @author		ExpressionEngine Dev Team

- * @link		http://codeigniter.com/user_guide/libraries/file_uploading.html

- */

-class CI_Upload {

-	

-	var $max_size		= 0;

-	var $max_width		= 0;

-	var $max_height		= 0;

-	var $max_filename	= 0;

-	var $allowed_types	= "";

-	var $file_temp		= "";

-	var $file_name		= "";

-	var $orig_name		= "";

-	var $file_type		= "";

-	var $file_size		= "";

-	var $file_ext		= "";

-	var $upload_path	= "";

-	var $overwrite		= FALSE;

-	var $encrypt_name	= FALSE;

-	var $is_image		= FALSE;

-	var $image_width	= '';

-	var $image_height	= '';

-	var $image_type		= '';

-	var $image_size_str	= '';

-	var $error_msg		= array();

-	var $mimes			= array();

-	var $remove_spaces	= TRUE;

-	var $xss_clean		= FALSE;

-	var $temp_prefix	= "temp_file_";

-		

-	/**

-	 * Constructor

-	 *

-	 * @access	public

-	 */

-	function CI_Upload($props = array())

-	{

-		if (count($props) > 0)

-		{

-			$this->initialize($props);

-		}

-		

-		log_message('debug', "Upload Class Initialized");

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Initialize preferences

-	 *

-	 * @access	public

-	 * @param	array

-	 * @return	void

-	 */	

-	function initialize($config = array())

-	{

-		$defaults = array(

-							'max_size'			=> 0,

-							'max_width'			=> 0,

-							'max_height'		=> 0,

-							'max_filename'		=> 0,

-							'allowed_types'		=> "",

-							'file_temp'			=> "",

-							'file_name'			=> "",

-							'orig_name'			=> "",

-							'file_type'			=> "",

-							'file_size'			=> "",

-							'file_ext'			=> "",

-							'upload_path'		=> "",

-							'overwrite'			=> FALSE,

-							'encrypt_name'		=> FALSE,

-							'is_image'			=> FALSE,

-							'image_width'		=> '',

-							'image_height'		=> '',

-							'image_type'		=> '',

-							'image_size_str'	=> '',

-							'error_msg'			=> array(),

-							'mimes'				=> array(),

-							'remove_spaces'		=> TRUE,

-							'xss_clean'			=> FALSE,

-							'temp_prefix'		=> "temp_file_"

-						);	

-	

-	

-		foreach ($defaults as $key => $val)

-		{

-			if (isset($config[$key]))

-			{

-				$method = 'set_'.$key;

-				if (method_exists($this, $method))

-				{

-					$this->$method($config[$key]);

-				}

-				else

-				{

-					$this->$key = $config[$key];

-				}			

-			}

-			else

-			{

-				$this->$key = $val;

-			}

-		}

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Perform the file upload

-	 *

-	 * @access	public

-	 * @return	bool

-	 */	

-	function do_upload($field = 'userfile')

-	{

-		// Is $_FILES[$field] set? If not, no reason to continue.

-		if ( ! isset($_FILES[$field]))

-		{

-			$this->set_error('upload_no_file_selected');

-			return FALSE;

-		}

-		

-		// Is the upload path valid?

-		if ( ! $this->validate_upload_path())

-		{

-			// errors will already be set by validate_upload_path() so just return FALSE

-			return FALSE;

-		}

-

-		// Was the file able to be uploaded? If not, determine the reason why.

-		if ( ! is_uploaded_file($_FILES[$field]['tmp_name']))

-		{

-			$error = ( ! isset($_FILES[$field]['error'])) ? 4 : $_FILES[$field]['error'];

-

-			switch($error)

-			{

-				case 1:	// UPLOAD_ERR_INI_SIZE

-					$this->set_error('upload_file_exceeds_limit');

-					break;

-				case 2: // UPLOAD_ERR_FORM_SIZE

-					$this->set_error('upload_file_exceeds_form_limit');

-					break;

-				case 3: // UPLOAD_ERR_PARTIAL

-				   $this->set_error('upload_file_partial');

-					break;

-				case 4: // UPLOAD_ERR_NO_FILE

-				   $this->set_error('upload_no_file_selected');

-					break;

-				case 6: // UPLOAD_ERR_NO_TMP_DIR

-					$this->set_error('upload_no_temp_directory');

-					break;

-				case 7: // UPLOAD_ERR_CANT_WRITE

-					$this->set_error('upload_unable_to_write_file');

-					break;

-				case 8: // UPLOAD_ERR_EXTENSION

-					$this->set_error('upload_stopped_by_extension');

-					break;

-				default :   $this->set_error('upload_no_file_selected');

-					break;

-			}

-

-			return FALSE;

-		}

-

-		// Set the uploaded data as class variables

-		$this->file_temp = $_FILES[$field]['tmp_name'];		

-		$this->file_name = $this->_prep_filename($_FILES[$field]['name']);

-		$this->file_size = $_FILES[$field]['size'];		

-		$this->file_type = preg_replace("/^(.+?);.*$/", "\\1", $_FILES[$field]['type']);

-		$this->file_type = strtolower($this->file_type);

-		$this->file_ext	 = $this->get_extension($_FILES[$field]['name']);

-		

-		// Convert the file size to kilobytes

-		if ($this->file_size > 0)

-		{

-			$this->file_size = round($this->file_size/1024, 2);

-		}

-

-		// Is the file type allowed to be uploaded?

-		if ( ! $this->is_allowed_filetype())

-		{

-			$this->set_error('upload_invalid_filetype');

-			return FALSE;

-		}

-

-		// Is the file size within the allowed maximum?

-		if ( ! $this->is_allowed_filesize())

-		{

-			$this->set_error('upload_invalid_filesize');

-			return FALSE;

-		}

-

-		// Are the image dimensions within the allowed size?

-		// Note: This can fail if the server has an open_basdir restriction.

-		if ( ! $this->is_allowed_dimensions())

-		{

-			$this->set_error('upload_invalid_dimensions');

-			return FALSE;

-		}

-

-		// Sanitize the file name for security

-		$this->file_name = $this->clean_file_name($this->file_name);

-		

-		// Truncate the file name if it's too long

-		if ($this->max_filename > 0)

-		{

-			$this->file_name = $this->limit_filename_length($this->file_name, $this->max_filename);

-		}

-

-		// Remove white spaces in the name

-		if ($this->remove_spaces == TRUE)

-		{

-			$this->file_name = preg_replace("/\s+/", "_", $this->file_name);

-		}

-

-		/*

-		 * Validate the file name

-		 * This function appends an number onto the end of

-		 * the file if one with the same name already exists.

-		 * If it returns false there was a problem.

-		 */

-		$this->orig_name = $this->file_name;

-

-		if ($this->overwrite == FALSE)

-		{

-			$this->file_name = $this->set_filename($this->upload_path, $this->file_name);

-			

-			if ($this->file_name === FALSE)

-			{

-				return FALSE;

-			}

-		}

-

-		/*

-		 * Move the file to the final destination

-		 * To deal with different server configurations

-		 * we'll attempt to use copy() first.  If that fails

-		 * we'll use move_uploaded_file().  One of the two should

-		 * reliably work in most environments

-		 */

-		if ( ! @copy($this->file_temp, $this->upload_path.$this->file_name))

-		{

-			if ( ! @move_uploaded_file($this->file_temp, $this->upload_path.$this->file_name))

-			{

-				 $this->set_error('upload_destination_error');

-				 return FALSE;

-			}

-		}

-		

-		/*

-		 * Run the file through the XSS hacking filter

-		 * This helps prevent malicious code from being

-		 * embedded within a file.  Scripts can easily

-		 * be disguised as images or other file types.

-		 */

-		if ($this->xss_clean == TRUE)

-		{

-			$this->do_xss_clean();

-		}

-

-		/*

-		 * Set the finalized image dimensions

-		 * This sets the image width/height (assuming the

-		 * file was an image).  We use this information

-		 * in the "data" function.

-		 */

-		$this->set_image_properties($this->upload_path.$this->file_name);

-

-		return TRUE;

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Finalized Data Array

-	 *	

-	 * Returns an associative array containing all of the information

-	 * related to the upload, allowing the developer easy access in one array.

-	 *

-	 * @access	public

-	 * @return	array

-	 */	

-	function data()

-	{

-		return array (

-						'file_name'			=> $this->file_name,

-						'file_type'			=> $this->file_type,

-						'file_path'			=> $this->upload_path,

-						'full_path'			=> $this->upload_path.$this->file_name,

-						'raw_name'			=> str_replace($this->file_ext, '', $this->file_name),

-						'orig_name'			=> $this->orig_name,

-						'file_ext'			=> $this->file_ext,

-						'file_size'			=> $this->file_size,

-						'is_image'			=> $this->is_image(),

-						'image_width'		=> $this->image_width,

-						'image_height'		=> $this->image_height,

-						'image_type'		=> $this->image_type,

-						'image_size_str'	=> $this->image_size_str,

-					);

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Set Upload Path

-	 *

-	 * @access	public

-	 * @param	string

-	 * @return	void

-	 */	

-	function set_upload_path($path)

-	{

-		// Make sure it has a trailing slash

-		$this->upload_path = rtrim($path, '/').'/';

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Set the file name

-	 *

-	 * This function takes a filename/path as input and looks for the

-	 * existence of a file with the same name. If found, it will append a

-	 * number to the end of the filename to avoid overwriting a pre-existing file.

-	 *

-	 * @access	public

-	 * @param	string

-	 * @param	string

-	 * @return	string

-	 */	

-	function set_filename($path, $filename)

-	{

-		if ($this->encrypt_name == TRUE)

-		{		

-			mt_srand();

-			$filename = md5(uniqid(mt_rand())).$this->file_ext;	

-		}

-	

-		if ( ! file_exists($path.$filename))

-		{

-			return $filename;

-		}

-	

-		$filename = str_replace($this->file_ext, '', $filename);

-		

-		$new_filename = '';

-		for ($i = 1; $i < 100; $i++)

-		{			

-			if ( ! file_exists($path.$filename.$i.$this->file_ext))

-			{

-				$new_filename = $filename.$i.$this->file_ext;

-				break;

-			}

-		}

-

-		if ($new_filename == '')

-		{

-			$this->set_error('upload_bad_filename');

-			return FALSE;

-		}

-		else

-		{

-			return $new_filename;

-		}

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Set Maximum File Size

-	 *

-	 * @access	public

-	 * @param	integer

-	 * @return	void

-	 */	

-	function set_max_filesize($n)

-	{

-		$this->max_size = ((int) $n < 0) ? 0: (int) $n;

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Set Maximum File Name Length

-	 *

-	 * @access	public

-	 * @param	integer

-	 * @return	void

-	 */	

-	function set_max_filename($n)

-	{

-		$this->max_filename = ((int) $n < 0) ? 0: (int) $n;

-	}

-

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Set Maximum Image Width

-	 *

-	 * @access	public

-	 * @param	integer

-	 * @return	void

-	 */	

-	function set_max_width($n)

-	{

-		$this->max_width = ((int) $n < 0) ? 0: (int) $n;

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Set Maximum Image Height

-	 *

-	 * @access	public

-	 * @param	integer

-	 * @return	void

-	 */	

-	function set_max_height($n)

-	{

-		$this->max_height = ((int) $n < 0) ? 0: (int) $n;

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Set Allowed File Types

-	 *

-	 * @access	public

-	 * @param	string

-	 * @return	void

-	 */	

-	function set_allowed_types($types)

-	{

-		$this->allowed_types = explode('|', $types);

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Set Image Properties

-	 *

-	 * Uses GD to determine the width/height/type of image

-	 *

-	 * @access	public

-	 * @param	string

-	 * @return	void

-	 */	

-	function set_image_properties($path = '')

-	{

-		if ( ! $this->is_image())

-		{

-			return;

-		}

-

-		if (function_exists('getimagesize'))

-		{

-			if (FALSE !== ($D = @getimagesize($path)))

-			{	

-				$types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');

-

-				$this->image_width		= $D['0'];

-				$this->image_height		= $D['1'];

-				$this->image_type		= ( ! isset($types[$D['2']])) ? 'unknown' : $types[$D['2']];

-				$this->image_size_str	= $D['3'];  // string containing height and width

-			}

-		}

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Set XSS Clean

-	 *

-	 * Enables the XSS flag so that the file that was uploaded

-	 * will be run through the XSS filter.

-	 *

-	 * @access	public

-	 * @param	bool

-	 * @return	void

-	 */

-	function set_xss_clean($flag = FALSE)

-	{

-		$this->xss_clean = ($flag == TRUE) ? TRUE : FALSE;

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Validate the image

-	 *

-	 * @access	public

-	 * @return	bool

-	 */	

-	function is_image()

-	{

-		// IE will sometimes return odd mime-types during upload, so here we just standardize all

-		// jpegs or pngs to the same file type.

-

-		$png_mimes  = array('image/x-png');

-		$jpeg_mimes = array('image/jpg', 'image/jpe', 'image/jpeg', 'image/pjpeg');

-		

-		if (in_array($this->file_type, $png_mimes))

-		{

-			$this->file_type = 'image/png';

-		}

-		

-		if (in_array($this->file_type, $jpeg_mimes))

-		{

-			$this->file_type = 'image/jpeg';

-		}

-

-		$img_mimes = array(

-							'image/gif',

-							'image/jpeg',

-							'image/png',

-						   );

-

-		return (in_array($this->file_type, $img_mimes, TRUE)) ? TRUE : FALSE;

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Verify that the filetype is allowed

-	 *

-	 * @access	public

-	 * @return	bool

-	 */	

-	function is_allowed_filetype()

-	{

-		if (count($this->allowed_types) == 0 OR ! is_array($this->allowed_types))

-		{

-			$this->set_error('upload_no_file_types');

-			return FALSE;

-		}

-			 	

-		foreach ($this->allowed_types as $val)

-		{

-			$mime = $this->mimes_types(strtolower($val));

-		

-			if (is_array($mime))

-			{

-				if (in_array($this->file_type, $mime, TRUE))

-				{

-					return TRUE;

-				}

-			}

-			else

-			{

-				if ($mime == $this->file_type)

-				{

-					return TRUE;

-				}	

-			}		

-		}

-		

-		return FALSE;

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Verify that the file is within the allowed size

-	 *

-	 * @access	public

-	 * @return	bool

-	 */	

-	function is_allowed_filesize()

-	{

-		if ($this->max_size != 0  AND  $this->file_size > $this->max_size)

-		{

-			return FALSE;

-		}

-		else

-		{

-			return TRUE;

-		}

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Verify that the image is within the allowed width/height

-	 *

-	 * @access	public

-	 * @return	bool

-	 */	

-	function is_allowed_dimensions()

-	{

-		if ( ! $this->is_image())

-		{

-			return TRUE;

-		}

-

-		if (function_exists('getimagesize'))

-		{

-			$D = @getimagesize($this->file_temp);

-

-			if ($this->max_width > 0 AND $D['0'] > $this->max_width)

-			{

-				return FALSE;

-			}

-

-			if ($this->max_height > 0 AND $D['1'] > $this->max_height)

-			{

-				return FALSE;

-			}

-

-			return TRUE;

-		}

-

-		return TRUE;

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Validate Upload Path

-	 *

-	 * Verifies that it is a valid upload path with proper permissions.

-	 *

-	 *

-	 * @access	public

-	 * @return	bool

-	 */	

-	function validate_upload_path()

-	{

-		if ($this->upload_path == '')

-		{

-			$this->set_error('upload_no_filepath');

-			return FALSE;

-		}

-		

-		if (function_exists('realpath') AND @realpath($this->upload_path) !== FALSE)

-		{

-			$this->upload_path = str_replace("\\", "/", realpath($this->upload_path));

-		}

-

-		if ( ! @is_dir($this->upload_path))

-		{

-			$this->set_error('upload_no_filepath');

-			return FALSE;

-		}

-

-		if ( ! is_really_writable($this->upload_path))

-		{

-			$this->set_error('upload_not_writable');

-			return FALSE;

-		}

-

-		$this->upload_path = preg_replace("/(.+?)\/*$/", "\\1/",  $this->upload_path);

-		return TRUE;

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Extract the file extension

-	 *

-	 * @access	public

-	 * @param	string

-	 * @return	string

-	 */	

-	function get_extension($filename)

-	{

-		$x = explode('.', $filename);

-		return '.'.end($x);

-	}	

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Clean the file name for security

-	 *

-	 * @access	public

-	 * @param	string

-	 * @return	string

-	 */		

-	function clean_file_name($filename)

-	{

-		$bad = array(

-						"<!--",

-						"-->",

-						"'",

-						"<",

-						">",

-						'"',

-						'&',

-						'$',

-						'=',

-						';',

-						'?',

-						'/',

-						"%20",

-						"%22",

-						"%3c",		// <

-						"%253c", 	// <

-						"%3e", 		// >

-						"%0e", 		// >

-						"%28", 		// (

-						"%29", 		// )

-						"%2528", 	// (

-						"%26", 		// &

-						"%24", 		// $

-						"%3f", 		// ?

-						"%3b", 		// ;

-						"%3d"		// =

-					);

-					

-		$filename = str_replace($bad, '', $filename);

-

-		return stripslashes($filename);

-	}

-

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Limit the File Name Length

-	 *

-	 * @access	public

-	 * @param	string

-	 * @return	string

-	 */		

-	function limit_filename_length($filename, $length)

-	{

-		if (strlen($filename) < $length)

-		{

-			return $filename;

-		}

-	

-		$ext = '';

-		if (strpos($filename, '.') !== FALSE)

-		{

-			$parts		= explode('.', $filename);

-			$ext		= '.'.array_pop($parts);

-			$filename	= implode('.', $parts);

-		}

-	

-		return substr($filename, 0, ($length - strlen($ext))).$ext;

-	}

-

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Runs the file through the XSS clean function

-	 *

-	 * This prevents people from embedding malicious code in their files.

-	 * I'm not sure that it won't negatively affect certain files in unexpected ways,

-	 * but so far I haven't found that it causes trouble.

-	 *

-	 * @access	public

-	 * @return	void

-	 */	

-	function do_xss_clean()

-	{		

-		$file = $this->upload_path.$this->file_name;

-		

-		if (filesize($file) == 0)

-		{

-			return FALSE;

-		}

-

-		if (($data = @file_get_contents($file)) === FALSE)

-		{

-			return FALSE;

-		}

-		

-		if ( ! $fp = @fopen($file, FOPEN_READ_WRITE))

-		{

-			return FALSE;

-		}

-

-		$CI =& get_instance();	

-		$data = $CI->input->xss_clean($data);

-		

-		flock($fp, LOCK_EX);

-		fwrite($fp, $data);

-		flock($fp, LOCK_UN);

-		fclose($fp);

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Set an error message

-	 *

-	 * @access	public

-	 * @param	string

-	 * @return	void

-	 */	

-	function set_error($msg)

-	{

-		$CI =& get_instance();	

-		$CI->lang->load('upload');

-		

-		if (is_array($msg))

-		{

-			foreach ($msg as $val)

-			{

-				$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);				

-				$this->error_msg[] = $msg;

-				log_message('error', $msg);

-			}		

-		}

-		else

-		{

-			$msg = ($CI->lang->line($msg) == FALSE) ? $msg : $CI->lang->line($msg);

-			$this->error_msg[] = $msg;

-			log_message('error', $msg);

-		}

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Display the error message

-	 *

-	 * @access	public

-	 * @param	string

-	 * @param	string

-	 * @return	string

-	 */	

-	function display_errors($open = '<p>', $close = '</p>')

-	{

-		$str = '';

-		foreach ($this->error_msg as $val)

-		{

-			$str .= $open.$val.$close;

-		}

-	

-		return $str;

-	}

-	

-	// --------------------------------------------------------------------

-	

-	/**

-	 * List of Mime Types

-	 *

-	 * This is a list of mime types.  We use it to validate

-	 * the "allowed types" set by the developer

-	 *

-	 * @access	public

-	 * @param	string

-	 * @return	string

-	 */	

-	function mimes_types($mime)

-	{

-		global $mimes;

-	

-		if (count($this->mimes) == 0)

-		{

-			if (@require_once(APPPATH.'config/mimes'.EXT))

-			{

-				$this->mimes = $mimes;

-				unset($mimes);

-			}

-		}

-	

-		return ( ! isset($this->mimes[$mime])) ? FALSE : $this->mimes[$mime];

-	}

-

-	// --------------------------------------------------------------------

-	

-	/**

-	 * Prep Filename

-	 *

-	 * Prevents possible script execution from Apache's handling of files multiple extensions

-	 * http://httpd.apache.org/docs/1.3/mod/mod_mime.html#multipleext

-	 *

-	 * @access	private

-	 * @param	string

-	 * @return	string

-	 */

-	function _prep_filename($filename)

-	{

-		if (strpos($filename, '.') === FALSE)

-		{

-			return $filename;

-		}

-		

-		$parts		= explode('.', $filename);

-		$ext		= array_pop($parts);

-		$filename	= array_shift($parts);

-				

-		foreach ($parts as $part)

-		{

-			if ($this->mimes_types(strtolower($part)) === FALSE)

-			{

-				$filename .= '.'.$part.'_';

-			}

-			else

-			{

-				$filename .= '.'.$part;

-			}

-		}

-		

-		$filename .= '.'.$ext;

-		

-		return $filename;

-	}

-

-	// --------------------------------------------------------------------

-

-}

-// END Upload Class

-

-/* End of file Upload.php */

+<?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		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * File Uploading Class
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Uploads
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/file_uploading.html
+ */
+class CI_Upload {
+	
+	var $max_size		= 0;
+	var $max_width		= 0;
+	var $max_height		= 0;
+	var $max_filename	= 0;
+	var $allowed_types	= "";
+	var $file_temp		= "";
+	var $file_name		= "";
+	var $orig_name		= "";
+	var $file_type		= "";
+	var $file_size		= "";
+	var $file_ext		= "";
+	var $upload_path	= "";
+	var $overwrite		= FALSE;
+	var $encrypt_name	= FALSE;
+	var $is_image		= FALSE;
+	var $image_width	= '';
+	var $image_height	= '';
+	var $image_type		= '';
+	var $image_size_str	= '';
+	var $error_msg		= array();
+	var $mimes			= array();
+	var $remove_spaces	= TRUE;
+	var $xss_clean		= FALSE;
+	var $temp_prefix	= "temp_file_";
+		
+	/**
+	 * Constructor
+	 *
+	 * @access	public
+	 */
+	function CI_Upload($props = array())
+	{
+		if (count($props) > 0)
+		{
+			$this->initialize($props);
+		}
+		
+		log_message('debug', "Upload Class Initialized");
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Initialize preferences
+	 *
+	 * @access	public
+	 * @param	array
+	 * @return	void
+	 */	
+	function initialize($config = array())
+	{
+		$defaults = array(
+							'max_size'			=> 0,
+							'max_width'			=> 0,
+							'max_height'		=> 0,
+							'max_filename'		=> 0,
+							'allowed_types'		=> "",
+							'file_temp'			=> "",
+							'file_name'			=> "",
+							'orig_name'			=> "",
+							'file_type'			=> "",
+							'file_size'			=> "",
+							'file_ext'			=> "",
+							'upload_path'		=> "",
+							'overwrite'			=> FALSE,
+							'encrypt_name'		=> FALSE,
+							'is_image'			=> FALSE,
+							'image_width'		=> '',
+							'image_height'		=> '',
+							'image_type'		=> '',
+							'image_size_str'	=> '',
+							'error_msg'			=> array(),
+							'mimes'				=> array(),
+							'remove_spaces'		=> TRUE,
+							'xss_clean'			=> FALSE,
+							'temp_prefix'		=> "temp_file_"
+						);	
+	
+	
+		foreach ($defaults as $key => $val)
+		{
+			if (isset($config[$key]))
+			{
+				$method = 'set_'.$key;
+				if (method_exists($this, $method))
+				{
+					$this->$method($config[$key]);
+				}
+				else
+				{
+					$this->$key = $config[$key];
+				}			
+			}
+			else
+			{
+				$this->$key = $val;
+			}
+		}
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Perform the file upload
+	 *
+	 * @access	public
+	 * @return	bool
+	 */	
+	function do_upload($field = 'userfile')
+	{
+		// Is $_FILES[$field] set? If not, no reason to continue.
+		if ( ! isset($_FILES[$field]))
+		{
+			$this->set_error('upload_no_file_selected');
+			return FALSE;
+		}
+		
+		// Is the upload path valid?
+		if ( ! $this->validate_upload_path())
+		{
+			// errors will already be set by validate_upload_path() so just return FALSE
+			return FALSE;
+		}
+
+		// Was the file able to be uploaded? If not, determine the reason why.
+		if ( ! is_uploaded_file($_FILES[$field]['tmp_name']))
+		{
+			$error = ( ! isset($_FILES[$field]['error'])) ? 4 : $_FILES[$field]['error'];
+
+			switch($error)
+			{
+				case 1:	// UPLOAD_ERR_INI_SIZE
+					$this->set_error('upload_file_exceeds_limit');
+					break;
+				case 2: // UPLOAD_ERR_FORM_SIZE
+					$this->set_error('upload_file_exceeds_form_limit');
+					break;
+				case 3: // UPLOAD_ERR_PARTIAL
+				   $this->set_error('upload_file_partial');
+					break;
+				case 4: // UPLOAD_ERR_NO_FILE
+				   $this->set_error('upload_no_file_selected');
+					break;
+				case 6: // UPLOAD_ERR_NO_TMP_DIR
+					$this->set_error('upload_no_temp_directory');
+					break;
+				case 7: // UPLOAD_ERR_CANT_WRITE
+					$this->set_error('upload_unable_to_write_file');
+					break;
+				case 8: // UPLOAD_ERR_EXTENSION
+					$this->set_error('upload_stopped_by_extension');
+					break;
+				default :   $this->set_error('upload_no_file_selected');
+					break;
+			}
+
+			return FALSE;
+		}
+
+		// Set the uploaded data as class variables
+		$this->file_temp = $_FILES[$field]['tmp_name'];		
+		$this->file_name = $this->_prep_filename($_FILES[$field]['name']);
+		$this->file_size = $_FILES[$field]['size'];		
+		$this->file_type = preg_replace("/^(.+?);.*$/", "\\1", $_FILES[$field]['type']);
+		$this->file_type = strtolower($this->file_type);
+		$this->file_ext	 = $this->get_extension($_FILES[$field]['name']);
+		
+		// Convert the file size to kilobytes
+		if ($this->file_size > 0)
+		{
+			$this->file_size = round($this->file_size/1024, 2);
+		}
+
+		// Is the file type allowed to be uploaded?
+		if ( ! $this->is_allowed_filetype())
+		{
+			$this->set_error('upload_invalid_filetype');
+			return FALSE;
+		}
+
+		// Is the file size within the allowed maximum?
+		if ( ! $this->is_allowed_filesize())
+		{
+			$this->set_error('upload_invalid_filesize');
+			return FALSE;
+		}
+
+		// Are the image dimensions within the allowed size?
+		// Note: This can fail if the server has an open_basdir restriction.
+		if ( ! $this->is_allowed_dimensions())
+		{
+			$this->set_error('upload_invalid_dimensions');
+			return FALSE;
+		}
+
+		// Sanitize the file name for security
+		$this->file_name = $this->clean_file_name($this->file_name);
+		
+		// Truncate the file name if it's too long
+		if ($this->max_filename > 0)
+		{
+			$this->file_name = $this->limit_filename_length($this->file_name, $this->max_filename);
+		}
+
+		// Remove white spaces in the name
+		if ($this->remove_spaces == TRUE)
+		{
+			$this->file_name = preg_replace("/\s+/", "_", $this->file_name);
+		}
+
+		/*
+		 * Validate the file name
+		 * This function appends an number onto the end of
+		 * the file if one with the same name already exists.
+		 * If it returns false there was a problem.
+		 */
+		$this->orig_name = $this->file_name;
+
+		if ($this->overwrite == FALSE)
+		{
+			$this->file_name = $this->set_filename($this->upload_path, $this->file_name);
+			
+			if ($this->file_name === FALSE)
+			{
+				return FALSE;
+			}
+		}
+
+		/*
+		 * Move the file to the final destination
+		 * To deal with different server configurations
+		 * we'll attempt to use copy() first.  If that fails
+		 * we'll use move_uploaded_file().  One of the two should
+		 * reliably work in most environments
+		 */
+		if ( ! @copy($this->file_temp, $this->upload_path.$this->file_name))
+		{
+			if ( ! @move_uploaded_file($this->file_temp, $this->upload_path.$this->file_name))
+			{
+				 $this->set_error('upload_destination_error');
+				 return FALSE;
+			}
+		}
+		
+		/*
+		 * Run the file through the XSS hacking filter
+		 * This helps prevent malicious code from being
+		 * embedded within a file.  Scripts can easily
+		 * be disguised as images or other file types.
+		 */
+		if ($this->xss_clean == TRUE)
+		{
+			$this->do_xss_clean();
+		}
+
+		/*
+		 * Set the finalized image dimensions
+		 * This sets the image width/height (assuming the
+		 * file was an image).  We use this information
+		 * in the "data" function.
+		 */
+		$this->set_image_properties($this->upload_path.$this->file_name);
+
+		return TRUE;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Finalized Data Array
+	 *	
+	 * Returns an associative array containing all of the information
+	 * related to the upload, allowing the developer easy access in one array.
+	 *
+	 * @access	public
+	 * @return	array
+	 */	
+	function data()
+	{
+		return array (
+						'file_name'			=> $this->file_name,
+						'file_type'			=> $this->file_type,
+						'file_path'			=> $this->upload_path,
+						'full_path'			=> $this->upload_path.$this->file_name,
+						'raw_name'			=> str_replace($this->file_ext, '', $this->file_name),
+						'orig_name'			=> $this->orig_name,
+						'file_ext'			=> $this->file_ext,
+						'file_size'			=> $this->file_size,
+						'is_image'			=> $this->is_image(),
+						'image_width'		=> $this->image_width,
+						'image_height'		=> $this->image_height,
+						'image_type'		=> $this->image_type,
+						'image_size_str'	=> $this->image_size_str,
+					);
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Set Upload Path
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	void
+	 */	
+	function set_upload_path($path)
+	{
+		// Make sure it has a trailing slash
+		$this->upload_path = rtrim($path, '/').'/';
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Set the file name
+	 *
+	 * This function takes a filename/path as input and looks for the
+	 * existence of a file with the same name. If found, it will append a
+	 * number to the end of the filename to avoid overwriting a pre-existing file.
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	string
+	 * @return	string
+	 */	
+	function set_filename($path, $filename)
+	{
+		if ($this->encrypt_name == TRUE)
+		{		
+			mt_srand();
+			$filename = md5(uniqid(mt_rand())).$this->file_ext;	
+		}
+	
+		if ( ! file_exists($path.$filename))
+		{
+			return $filename;
+		}
+	
+		$filename = str_replace($this->file_ext, '', $filename);
+		
+		$new_filename = '';
+		for ($i = 1; $i < 100; $i++)
+		{			
+			if ( ! file_exists($path.$filename.$i.$this->file_ext))
+			{
+				$new_filename = $filename.$i.$this->file_ext;
+				break;
+			}
+		}
+
+		if ($new_filename == '')
+		{
+			$this->set_error('upload_bad_filename');
+			return FALSE;
+		}
+		else
+		{
+			return $new_filename;
+		}
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Set Maximum File Size
+	 *
+	 * @access	public
+	 * @param	integer
+	 * @return	void
+	 */	
+	function set_max_filesize($n)
+	{
+		$this->max_size = ((int) $n < 0) ? 0: (int) $n;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Set Maximum File Name Length
+	 *
+	 * @access	public
+	 * @param	integer
+	 * @return	void
+	 */	
+	function set_max_filename($n)
+	{
+		$this->max_filename = ((int) $n < 0) ? 0: (int) $n;
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Set Maximum Image Width
+	 *
+	 * @access	public
+	 * @param	integer
+	 * @return	void
+	 */	
+	function set_max_width($n)
+	{
+		$this->max_width = ((int) $n < 0) ? 0: (int) $n;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Set Maximum Image Height
+	 *
+	 * @access	public
+	 * @param	integer
+	 * @return	void
+	 */	
+	function set_max_height($n)
+	{
+		$this->max_height = ((int) $n < 0) ? 0: (int) $n;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Set Allowed File Types
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	void
+	 */	
+	function set_allowed_types($types)
+	{
+		$this->allowed_types = explode('|', $types);
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Set Image Properties
+	 *
+	 * Uses GD to determine the width/height/type of image
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	void
+	 */	
+	function set_image_properties($path = '')
+	{
+		if ( ! $this->is_image())
+		{
+			return;
+		}
+
+		if (function_exists('getimagesize'))
+		{
+			if (FALSE !== ($D = @getimagesize($path)))
+			{	
+				$types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');
+
+				$this->image_width		= $D['0'];
+				$this->image_height		= $D['1'];
+				$this->image_type		= ( ! isset($types[$D['2']])) ? 'unknown' : $types[$D['2']];
+				$this->image_size_str	= $D['3'];  // string containing height and width
+			}
+		}
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Set XSS Clean
+	 *
+	 * Enables the XSS flag so that the file that was uploaded
+	 * will be run through the XSS filter.
+	 *
+	 * @access	public
+	 * @param	bool
+	 * @return	void
+	 */
+	function set_xss_clean($flag = FALSE)
+	{
+		$this->xss_clean = ($flag == TRUE) ? TRUE : FALSE;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Validate the image
+	 *
+	 * @access	public
+	 * @return	bool
+	 */	
+	function is_image()
+	{
+		// IE will sometimes return odd mime-types during upload, so here we just standardize all
+		// jpegs or pngs to the same file type.
+
+		$png_mimes  = array('image/x-png');
+		$jpeg_mimes = array('image/jpg', 'image/jpe', 'image/jpeg', 'image/pjpeg');
+		
+		if (in_array($this->file_type, $png_mimes))
+		{
+			$this->file_type = 'image/png';
+		}
+		
+		if (in_array($this->file_type, $jpeg_mimes))
+		{
+			$this->file_type = 'image/jpeg';
+		}
+
+		$img_mimes = array(
+							'image/gif',
+							'image/jpeg',
+							'image/png',
+						   );
+
+		return (in_array($this->file_type, $img_mimes, TRUE)) ? TRUE : FALSE;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Verify that the filetype is allowed
+	 *
+	 * @access	public
+	 * @return	bool
+	 */	
+	function is_allowed_filetype()
+	{
+		if (count($this->allowed_types) == 0 OR ! is_array($this->allowed_types))
+		{
+			$this->set_error('upload_no_file_types');
+			return FALSE;
+		}
+			 	
+		foreach ($this->allowed_types as $val)
+		{
+			$mime = $this->mimes_types(strtolower($val));
+		
+			if (is_array($mime))
+			{
+				if (in_array($this->file_type, $mime, TRUE))
+				{
+					return TRUE;
+				}
+			}
+			else
+			{
+				if ($mime == $this->file_type)
+				{
+					return TRUE;
+				}	
+			}		
+		}
+		
+		return FALSE;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Verify that the file is within the allowed size
+	 *
+	 * @access	public
+	 * @return	bool
+	 */	
+	function is_allowed_filesize()
+	{
+		if ($this->max_size != 0  AND  $this->file_size > $this->max_size)
+		{
+			return FALSE;
+		}
+		else
+		{
+			return TRUE;
+		}
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Verify that the image is within the allowed width/height
+	 *
+	 * @access	public
+	 * @return	bool
+	 */	
+	function is_allowed_dimensions()
+	{
+		if ( ! $this->is_image())
+		{
+			return TRUE;
+		}
+
+		if (function_exists('getimagesize'))
+		{
+			$D = @getimagesize($this->file_temp);
+
+			if ($this->max_width > 0 AND $D['0'] > $this->max_width)
+			{
+				return FALSE;
+			}
+
+			if ($this->max_height > 0 AND $D['1'] > $this->max_height)
+			{
+				return FALSE;
+			}
+
+			return TRUE;
+		}
+
+		return TRUE;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Validate Upload Path
+	 *
+	 * Verifies that it is a valid upload path with proper permissions.
+	 *
+	 *
+	 * @access	public
+	 * @return	bool
+	 */	
+	function validate_upload_path()
+	{
+		if ($this->upload_path == '')
+		{
+			$this->set_error('upload_no_filepath');
+			return FALSE;
+		}
+		
+		if (function_exists('realpath') AND @realpath($this->upload_path) !== FALSE)
+		{
+			$this->upload_path = str_replace("\\", "/", realpath($this->upload_path));
+		}
+
+		if ( ! @is_dir($this->upload_path))
+		{
+			$this->set_error('upload_no_filepath');
+			return FALSE;
+		}
+
+		if ( ! is_really_writable($this->upload_path))
+		{
+			$this->set_error('upload_not_writable');
+			return FALSE;
+		}
+
+		$this->upload_path = preg_replace("/(.+?)\/*$/", "\\1/",  $this->upload_path);
+		return TRUE;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Extract the file extension
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */	
+	function get_extension($filename)
+	{
+		$x = explode('.', $filename);
+		return '.'.end($x);
+	}	
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Clean the file name for security
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */		
+	function clean_file_name($filename)
+	{
+		$bad = array(
+						"<!--",
+						"-->",
+						"'",
+						"<",
+						">",
+						'"',
+						'&',
+						'$',
+						'=',
+						';',
+						'?',
+						'/',
+						"%20",
+						"%22",
+						"%3c",		// <
+						"%253c", 	// <
+						"%3e", 		// >
+						"%0e", 		// >
+						"%28", 		// (
+						"%29", 		// )
+						"%2528", 	// (
+						"%26", 		// &
+						"%24", 		// $
+						"%3f", 		// ?
+						"%3b", 		// ;
+						"%3d"		// =
+					);
+					
+		$filename = str_replace($bad, '', $filename);
+
+		return stripslashes($filename);
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Limit the File Name Length
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */		
+	function limit_filename_length($filename, $length)
+	{
+		if (strlen($filename) < $length)
+		{
+			return $filename;
+		}
+	
+		$ext = '';
+		if (strpos($filename, '.') !== FALSE)
+		{
+			$parts		= explode('.', $filename);
+			$ext		= '.'.array_pop($parts);
+			$filename	= implode('.', $parts);
+		}
+	
+		return substr($filename, 0, ($length - strlen($ext))).$ext;
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Runs the file through the XSS clean function
+	 *
+	 * This prevents people from embedding malicious code in their files.
+	 * I'm not sure that it won't negatively affect certain files in unexpected ways,
+	 * but so far I haven't found that it causes trouble.
+	 *
+	 * @access	public
+	 * @return	void
+	 */	
+	function do_xss_clean()
+	{		
+		$file = $this->upload_path.$this->file_name;
+		
+		if (filesize($file) == 0)
+		{
+			return FALSE;
+		}
+
+		if (($data = @file_get_contents($file)) === FALSE)
+		{
+			return FALSE;
+		}
+		
+		if ( ! $fp = @fopen($file, FOPEN_READ_WRITE))
+		{
+			return FALSE;
+		}
+
+		$CI =& get_instance();	
+		$data = $CI->input->xss_clean($data);
+		
+		flock($fp, LOCK_EX);
+		fwrite($fp, $data);
+		flock($fp, LOCK_UN);
+		fclose($fp);
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Set an error message
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	void
+	 */	
+	function set_error($msg)
+	{
+		$CI =& get_instance();	
+		$CI->lang->load('upload');
+		
+		if (is_array($msg))
+		{
+			foreach ($msg as $val)
+			{
+				$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);				
+				$this->error_msg[] = $msg;
+				log_message('error', $msg);
+			}		
+		}
+		else
+		{
+			$msg = ($CI->lang->line($msg) == FALSE) ? $msg : $CI->lang->line($msg);
+			$this->error_msg[] = $msg;
+			log_message('error', $msg);
+		}
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Display the error message
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	string
+	 * @return	string
+	 */	
+	function display_errors($open = '<p>', $close = '</p>')
+	{
+		$str = '';
+		foreach ($this->error_msg as $val)
+		{
+			$str .= $open.$val.$close;
+		}
+	
+		return $str;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * List of Mime Types
+	 *
+	 * This is a list of mime types.  We use it to validate
+	 * the "allowed types" set by the developer
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */	
+	function mimes_types($mime)
+	{
+		global $mimes;
+	
+		if (count($this->mimes) == 0)
+		{
+			if (@require_once(APPPATH.'config/mimes'.EXT))
+			{
+				$this->mimes = $mimes;
+				unset($mimes);
+			}
+		}
+	
+		return ( ! isset($this->mimes[$mime])) ? FALSE : $this->mimes[$mime];
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Prep Filename
+	 *
+	 * Prevents possible script execution from Apache's handling of files multiple extensions
+	 * http://httpd.apache.org/docs/1.3/mod/mod_mime.html#multipleext
+	 *
+	 * @access	private
+	 * @param	string
+	 * @return	string
+	 */
+	function _prep_filename($filename)
+	{
+		if (strpos($filename, '.') === FALSE)
+		{
+			return $filename;
+		}
+		
+		$parts		= explode('.', $filename);
+		$ext		= array_pop($parts);
+		$filename	= array_shift($parts);
+				
+		foreach ($parts as $part)
+		{
+			if ($this->mimes_types(strtolower($part)) === FALSE)
+			{
+				$filename .= '.'.$part.'_';
+			}
+			else
+			{
+				$filename .= '.'.$part;
+			}
+		}
+		
+		$filename .= '.'.$ext;
+		
+		return $filename;
+	}
+
+	// --------------------------------------------------------------------
+
+}
+// END Upload Class
+
+/* End of file Upload.php */
 /* Location: ./system/libraries/Upload.php */
\ No newline at end of file