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<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014 - 2018, British Columbia Institute of Technology * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @package CodeIgniter * @author EllisLab Dev Team * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) * @copyright Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/) * @license http://opensource.org/licenses/MIT MIT License * @link https://codeigniter.com * @since Version 1.0.0 * @filesource */ defined('BASEPATH') OR exit('No direct script access allowed'); /** * FTP Class * * @package CodeIgniter * @subpackage Libraries * @category Libraries * @author EllisLab Dev Team * @link https://codeigniter.com/user_guide/libraries/ftp.html */ class CI_FTP { /** * FTP Server hostname * * @var string */ public $hostname = ''; /** * FTP Username * * @var string */ public $username = ''; /** * FTP Password * * @var string */ public $password = ''; /** * FTP Server port * * @var int */ public $port = 21; /** * Passive mode flag * * @var bool */ public $passive = TRUE; /** * Debug flag * * Specifies whether to display error messages. * * @var bool */ public $debug = FALSE; // -------------------------------------------------------------------- /** * Connection ID * * @var resource */ protected $conn_id; // -------------------------------------------------------------------- /** * Constructor * * @param array $config * @return void */ public function __construct($config = array()) { empty($config) OR $this->initialize($config); log_message('info', 'FTP Class Initialized'); } // -------------------------------------------------------------------- /** * Initialize preferences * * @param array $config * @return void */ public function initialize($config = array()) { foreach ($config as $key => $val) { if (isset($this->$key)) { $this->$key = $val; } } // Prep the hostname $this->hostname = preg_replace('|.+?://|', '', $this->hostname); } // -------------------------------------------------------------------- /** * FTP Connect * * @param array $config Connection values * @return bool */ public function connect($config = array()) { if (count($config) > 0) { $this->initialize($config); } if (FALSE === ($this->conn_id = @ftp_connect($this->hostname, $this->port))) { if ($this->debug === TRUE) { $this->_error('ftp_unable_to_connect'); } return FALSE; } if ( ! $this->_login()) { if ($this->debug === TRUE) { $this->_error('ftp_unable_to_login'); } return FALSE; } // Set passive mode if needed if ($this->passive === TRUE) { ftp_pasv($this->conn_id, TRUE); } return TRUE; } // -------------------------------------------------------------------- /** * FTP Login * * @return bool */ protected function _login() { return @ftp_login($this->conn_id, $this->username, $this->password); } // -------------------------------------------------------------------- /** * Validates the connection ID * * @return bool */ protected function _is_conn() { if ( ! is_resource($this->conn_id)) { if ($this->debug === TRUE) { $this->_error('ftp_no_connection'); } return FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Change directory * * The second parameter lets us momentarily turn off debugging so that * this function can be used to test for the existence of a folder * without throwing an error. There's no FTP equivalent to is_dir() * so we do it by trying to change to a particular directory. * Internally, this parameter is only used by the "mirror" function below. * * @param string $path * @param bool $suppress_debug * @return bool */ public function changedir($path, $suppress_debug = FALSE) { if ( ! $this->_is_conn()) { return FALSE; } $result = @ftp_chdir($this->conn_id, $path); if ($result === FALSE) { if ($this->debug === TRUE && $suppress_debug === FALSE) { $this->_error('ftp_unable_to_changedir'); } return FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Create a directory * * @param string $path * @param int $permissions * @return bool */ public function mkdir($path, $permissions = NULL) { if ($path === '' OR ! $this->_is_conn()) { return FALSE; } $result = @ftp_mkdir($this->conn_id, $path); if ($result === FALSE) { if ($this->debug === TRUE) { $this->_error('ftp_unable_to_mkdir'); } return FALSE; } // Set file permissions if needed if ($permissions !== NULL) { $this->chmod($path, (int) $permissions); } return TRUE; } // -------------------------------------------------------------------- /** * Upload a file to the server * * @param string $locpath * @param string $rempath * @param string $mode * @param int $permissions * @return bool */ public function upload($locpath, $rempath, $mode = 'auto', $permissions = NULL) { if ( ! $this->_is_conn()) { return FALSE; } if ( ! file_exists($locpath)) { $this->_error('ftp_no_source_file'); return FALSE; } // Set the mode if not specified if ($mode === 'auto') { // Get the file extension so we can set the upload type $ext = $this->_getext($locpath); $mode = $this->_settype($ext); } $mode = ($mode === 'ascii') ? FTP_ASCII : FTP_BINARY; $result = @ftp_put($this->conn_id, $rempath, $locpath, $mode); if ($result === FALSE) { if ($this->debug === TRUE) { $this->_error('ftp_unable_to_upload'); } return FALSE; } // Set file permissions if needed if ($permissions !== NULL) { $this->chmod($rempath, (int) $permissions); } return TRUE; } // -------------------------------------------------------------------- /** * Download a file from a remote server to the local server * * @param string $rempath * @param string $locpath * @param string $mode * @return bool */ public function download($rempath, $locpath, $mode = 'auto') { if ( ! $this->_is_conn()) { return FALSE; } // Set the mode if not specified if ($mode === 'auto') { // Get the file extension so we can set the upload type $ext = $this->_getext($rempath); $mode = $this->_settype($ext); } $mode = ($mode === 'ascii') ? FTP_ASCII : FTP_BINARY; $result = @ftp_get($this->conn_id, $locpath, $rempath, $mode); if ($result === FALSE) { if ($this->debug === TRUE) { $this->_error('ftp_unable_to_download'); } return FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Rename (or move) a file * * @param string $old_file * @param string $new_file * @param bool $move * @return bool */ public function rename($old_file, $new_file, $move = FALSE) { if ( ! $this->_is_conn()) { return FALSE; } $result = @ftp_rename($this->conn_id, $old_file, $new_file); if ($result === FALSE) { if ($this->debug === TRUE) { $this->_error('ftp_unable_to_'.($move === FALSE ? 'rename' : 'move')); } return FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Move a file * * @param string $old_file * @param string $new_file * @return bool */ public function move($old_file, $new_file) { return $this->rename($old_file, $new_file, TRUE); } // -------------------------------------------------------------------- /** * Rename (or move) a file * * @param string $filepath * @return bool */ public function delete_file($filepath) { if ( ! $this->_is_conn()) { return FALSE; } $result = @ftp_delete($this->conn_id, $filepath); if ($result === FALSE) { if ($this->debug === TRUE) { $this->_error('ftp_unable_to_delete'); } return FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Delete a folder and recursively delete everything (including sub-folders) * contained within it. * * @param string $filepath * @return bool */ public function delete_dir($filepath) { if ( ! $this->_is_conn()) { return FALSE; } // Add a trailing slash to the file path if needed $filepath = preg_replace('/(.+?)\/*$/', '\\1/', $filepath); $list = $this->list_files($filepath); if ( ! empty($list)) { for ($i = 0, $c = count($list); $i < $c; $i++) { // If we can't delete the item it's probably a directory, // so we'll recursively call delete_dir() if ( ! preg_match('#/\.\.?$#', $list[$i]) && ! @ftp_delete($this->conn_id, $list[$i])) { $this->delete_dir($filepath.$list[$i]); } } } if (@ftp_rmdir($this->conn_id, $filepath) === FALSE) { if ($this->debug === TRUE) { $this->_error('ftp_unable_to_delete'); } return FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Set file permissions * * @param string $path File path * @param int $perm Permissions * @return bool */ public function chmod($path, $perm) { if ( ! $this->_is_conn()) { return FALSE; } if (@ftp_chmod($this->conn_id, $perm, $path) === FALSE) { if ($this->debug === TRUE) { $this->_error('ftp_unable_to_chmod'); } return FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * FTP List files in the specified directory * * @param string $path * @return array */ public function list_files($path = '.') { return $this->_is_conn() ? ftp_nlist($this->conn_id, $path) : FALSE; } // ------------------------------------------------------------------------ /** * Read a directory and recreate it remotely * * This function recursively reads a folder and everything it contains * (including sub-folders) and creates a mirror via FTP based on it. * Whatever the directory structure of the original file path will be * recreated on the server. * * @param string $locpath Path to source with trailing slash * @param string $rempath Path to destination - include the base folder with trailing slash * @return bool */ public function mirror($locpath, $rempath) { if ( ! $this->_is_conn()) { return FALSE; } // Open the local file path if ($fp = @opendir($locpath)) { // Attempt to open the remote file path and try to create it, if it doesn't exist if ( ! $this->changedir($rempath, TRUE) && ( ! $this->mkdir($rempath) OR ! $this->changedir($rempath))) { return FALSE; } // Recursively read the local directory while (FALSE !== ($file = readdir($fp))) { if (is_dir($locpath.$file) && $file[0] !== '.') { $this->mirror($locpath.$file.'/', $rempath.$file.'/'); } elseif ($file[0] !== '.') { // Get the file extension so we can se the upload type $ext = $this->_getext($file); $mode = $this->_settype($ext); $this->upload($locpath.$file, $rempath.$file, $mode); } } return TRUE; } return FALSE; } // -------------------------------------------------------------------- /** * Extract the file extension * * @param string $filename * @return string */ protected function _getext($filename) { return (($dot = strrpos($filename, '.')) === FALSE) ? 'txt' : substr($filename, $dot + 1); } // -------------------------------------------------------------------- /** * Set the upload type * * @param string $ext Filename extension * @return string */ protected function _settype($ext) { return in_array($ext, array('txt', 'text', 'php', 'phps', 'php4', 'js', 'css', 'htm', 'html', 'phtml', 'shtml', 'log', 'xml'), TRUE) ? 'ascii' : 'binary'; } // ------------------------------------------------------------------------ /** * Close the connection * * @return bool */ public function close() { return $this->_is_conn() ? @ftp_close($this->conn_id) : FALSE; } // ------------------------------------------------------------------------ /** * Display error message * * @param string $line * @return void */ protected function _error($line) { $CI =& get_instance(); $CI->lang->load('ftp'); show_error($CI->lang->line($line)); } }