<?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) 2006, EllisLab, Inc.

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

 * @link		http://codeigniter.com

 * @since		Version 1.0

 * @filesource

 */



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



/**

 * CodeIgniter File Helpers

 *

 * @package		CodeIgniter

 * @subpackage	Helpers

 * @category	Helpers

 * @author		ExpressionEngine Dev Team

 * @link		http://codeigniter.com/user_guide/helpers/file_helpers.html

 */



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



/**

 * Read File

 *

 * Opens the file specfied in the path and returns it as a string.

 *

 * @access	public

 * @param	string	path to file

 * @return	string

 */	

if (! function_exists('read_file'))

{

	function read_file($file)

	{

		if ( ! file_exists($file))

		{

			return FALSE;

		}

	

		if (function_exists('file_get_contents'))

		{

			return file_get_contents($file);		

		}



		if ( ! $fp = @fopen($file, 'rb'))

		{

			return FALSE;

		}

		

		flock($fp, LOCK_SH);

	

		$data = '';

		if (filesize($file) > 0)

		{

			$data =& fread($fp, filesize($file));

		}



		flock($fp, LOCK_UN);

		fclose($fp);



		return $data;

	}

}

	

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



/**

 * Write File

 *

 * Writes data to the file specified in the path.

 * Creates a new file if non-existent.

 *

 * @access	public

 * @param	string	path to file

 * @param	string	file data

 * @return	bool

 */	

if (! function_exists('write_file'))

{

	function write_file($path, $data, $mode = 'wb')

	{

		if ( ! $fp = @fopen($path, $mode))

		{

			return FALSE;

		}

		

		flock($fp, LOCK_EX);

		fwrite($fp, $data);

		flock($fp, LOCK_UN);

		fclose($fp);	



		return TRUE;

	}

}

	

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



/**

 * Delete Files

 *

 * Deletes all files contained in the supplied directory path.

 * Files must be writable or owned by the system in order to be deleted.

 * If the second parameter is set to TRUE, any directories contained

 * within the supplied base directory will be nuked as well.

 *

 * @access	public

 * @param	string	path to file

 * @param	bool	whether to delete any directories found in the path

 * @return	bool

 */	

if (! function_exists('delete_files'))

{

	function delete_files($path, $del_dir = FALSE, $level = 0)

	{	

		// Trim the trailing slash

		$path = preg_replace("|^(.+?)/*$|", "\\1", $path);

		

		if ( ! $current_dir = @opendir($path))

			return;

	

		while(FALSE !== ($filename = @readdir($current_dir)))

		{

			if ($filename != "." and $filename != "..")

			{

				if (is_dir($path.'/'.$filename))

				{

					delete_files($path.'/'.$filename, $del_dir, $level + 1);

				}

				else

				{

					unlink($path.'/'.$filename);

				}

			}

		}

		@closedir($current_dir);

	

		if ($del_dir == TRUE AND $level > 0)

		{

			@rmdir($path);

		}

	}

}



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



/**

 * Get Filenames

 *

 * Reads the specified directory and builds an array containing the filenames.  

 * Any sub-folders contained within the specified path are read as well.

 *

 * @access	public

 * @param	string	path to source

 * @param	bool	whether to include the path as part of the filename

 * @return	array

 */	

if (! function_exists('get_filenames'))

{

	function get_filenames($source_dir, $include_path = FALSE)

	{

		$_filedata = array();

	

		if ($fp = @opendir($source_dir))

		{

			while (FALSE !== ($file = readdir($fp)))

			{

				if (@is_dir($source_dir.$file) && substr($file, 0, 1) != '.')

				{

					 get_filenames($source_dir.$file."/", $include_path);

				}

				elseif (substr($file, 0, 1) != ".")

				{

			

					$_filedata[] = ($include_path == TRUE) ? $source_dir.$file : $file;

				}

			}

			return $_filedata;

		}

	}

}



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



?>