<?php
// This codes goes in the 'application/libraries' folder with a
// file name of MY_Ftp.php
 
class MY_Ftp extends CI_Ftp {
 
	/**
	 * Constructor
	 **/
	function MY_Ftp() {
		parent::CI_Ftp();
	}
 
	/**
	 * Download a file from a FTP server
	 * @param	<string>	$rem_path	Remote path of the file to download
	 * @param	<string>	$loc_path	Local path destination for download
	 * @param	<string>	$mode		Transfer mode, defaults to auto
	 **/
	function download($rem_path, $loc_path, $mode='auto') {
		// check for an active connection
		if ( ! $this->_is_conn()) {
			return FALSE;
		}
 
		// get remote folder/filename
		$rem_folder   = dirname($rem_path);
		$rem_filename = basename($rem_path);
 
		// if a local directory was passed handle differently.
		// Otherwise, treat same as remote.
		if (@is_dir($loc_path)) {
			$loc_folder   = rtrim($loc_path, '/');
			$loc_filename = $rem_filename;
		}
		else {
			$loc_folder   = dirname($loc_path);
			$loc_filename = basename($loc_path);
		}
 
		// check that the loc path exists
		if ( $loc_folder != '.'  && ! @is_dir($loc_folder)) {
			$this->_error('ftp_bad_loc_path');
			return FALSE;
		}
		// check that loc path and file are writable
		elseif ( ! @is_writable($loc_folder) OR (file_exists($loc_folder.'/'.$loc_filename) && ! @is_writable($loc_folder.'/'.$loc_filename))) {
			$this->_error('ftp_loc_not_write');
			return FALSE;
		}
 
		// store old paths
		$old_rem_path = @ftp_pwd($this->conn_id);
		$old_loc_path = getcwd();
 
		// move to the local path
		if ( ! @chdir($loc_folder)) {
			$this->_error('ftp_bad_loc_path');
			return FALSE;
		}
 
		// move to the remote path
		if ( $rem_folder != '.' && ! $this->changedir($rem_folder)) {
			$this->_error('ftp_bad_rem_path');
			return FALSE;
		}
 
		// check that the file exists remotely
		$found_file = FALSE;
		$files = $this->list_files();
		if (count($files) > 0) {
			foreach ($files as $f) {
				if ($f == $rem_filename) {
					$found_file = TRUE;
					break;
				}
			}
		}
 
		if ( ! $found_file) {
			$this->_error('ftp_bad_rem_file');
			return FALSE;
		}
 
		// Set the mode if not specified
		if ($mode == 'auto') {
			// Get the file extension so we can set the upload type
			$ext = $this->_getext($rem_path);
			$mode = $this->_settype($ext);
		}
 
		$mode = ($mode == 'ascii') ? FTP_ASCII : FTP_BINARY;
 
		// download the file
		$result = @ftp_get($this->conn_id, $loc_folder.'/'.$loc_filename, $rem_filename, $mode);
 
		if ($result === FALSE) {
			if ($this->debug == TRUE)
				$this->_error('ftp_unable_to_download');
 
			return FALSE;
		}
 
		// move back to the root path
		$this->changedir($old_rem_path);
		@chdir($old_loc_path);
 
		return TRUE;
	}
 
}
 
?>