817 lines
22 KiB
PHP
Executable File
817 lines
22 KiB
PHP
Executable File
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Net_FTP socket implementation of FTP functions.
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*
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* The functions in this file emulate the ext/FTP functions through
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* ext/Socket.
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*
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* PHP versions 4 and 5
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*
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* @category Networking
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* @package FTP
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* @author Tobias Schlitt <toby@php.net>
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* @copyright 1997-2008 The PHP Group
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* @license BSD http://www.opensource.org/licenses/bsd-license.php
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* @version CVS: $Id: Socket.php 246 2016-02-10 21:21:12Z soeren $
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* @link http://pear.php.net/package/Net_FTP
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* @since File available since Release 0.0.1
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*/
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/**
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* Default FTP extension constants
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*/
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define('FTP_ASCII', 0);
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define('FTP_TEXT', 0);
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define('FTP_BINARY', 1);
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define('FTP_IMAGE', 1);
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define('FTP_TIMEOUT_SEC', 0);
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/**
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* What needs to be done overall?
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* #1 Install the rest of these functions
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* #2 Document better
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* #3 Alot of other things I don't remember
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*/
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/*
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* !!! NOTE !!!
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* Most of the comment's are "not working",
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* meaning they are not all up-to-date
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* !!! NOTE !!!
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*/
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/**
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* &resource ftp_connect ( string host [, int port [, int timeout ] ] );
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*
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* Opens an FTP connection and return resource or false on failure.
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*
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* FTP Success respons code: 220
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*
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* @param string $host Host to connect to
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* @param int $port Optional, port to connect to
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* @param int $timeout Optional, seconds until function timeouts
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*
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* @todo The FTP extension has ftp_get_option() function which returns the
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* timeout variable. This function needs to be created and contain it as
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* static variable.
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* @todo The FTP extension has ftp_set_option() function which sets the
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* timeout variable. This function needs to be created and called here.
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* @access public
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* @return &resource
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*/
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if (!function_exists('ftp_connect')) {
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function &ftp_connect($host, $port = 21, $timeout = 90)
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{
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$false = false; // We are going to return refrence (E_STRICT)
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if (!is_string($host) || !is_integer($port) || !is_integer($timeout)) {
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return $false;
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}
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$iError = 0;
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$sError = '';
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$control = @fsockopen($host, $port, $iError, $sError,
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$timeout);
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$GLOBALS['_NET_FTP']['timeout'] = $timeout;
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if (!is_resource($control)) {
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return $false;
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}
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stream_set_blocking($control, true);
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stream_set_timeout($control, $timeout);
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do {
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$content[] = fgets($control, 8129);
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$array = socket_get_status($control);
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} while ($array['unread_bytes'] > 0);
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if (substr($content[count($content)-1], 0, 3) == 220) {
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return $control;
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}
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return $false;
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}
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}
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/**
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* boolean ftp_login ( resource stream, string username, string password );
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*
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* Logs in to an given FTP connection stream.
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* Returns TRUE on success or FALSE on failure.
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*
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* NOTE:
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* Username and password are *not* optional. Function will *not*
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* assume "anonymous" if username and/or password is empty
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*
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* FTP Success respons code: 230
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*
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* @param resource &$control FTP resource to login to
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* @param string $username FTP Username to be used
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* @param string $password FTP Password to be used
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*
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* @access public
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* @return boolean
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*/
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if (!function_exists('ftp_login')) {
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function ftp_login(&$control, $username, $password)
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{
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if (!is_resource($control) || is_null($username)) {
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return false;
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}
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fputs($control, 'USER '.$username."\r\n");
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$contents = array();
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do {
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$contents[] = fgets($control, 8192);
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$array = socket_get_status($control);
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} while ($array['unread_bytes'] > 0);
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if (substr($contents[count($contents)-1], 0, 3) != 331) {
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return false;
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}
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fputs($control, 'PASS '.$password."\r\n");
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$contents = array();
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do {
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$contents[] = fgets($control, 8192);
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$array = socket_get_status($control);
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} while ($array['unread_bytes']);
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if (substr($contents[count($contents)-1], 0, 3) == 230) {
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return true;
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}
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trigger_error('ftp_login() [<a href="function.ftp-login">function.ftp-login'.
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'</a>]: '.$contents[count($contents)-1], E_USER_WARNING);
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return false;
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}
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}
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/**
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* boolean ftp_quit ( resource stream );
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*
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* Closes FTP connection.
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* Returns TRUE or FALSE on error.
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*
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* NOTE: The PHP function ftp_quit is *alias* to ftp_close, here it is
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* the *other-way-around* ( ftp_close() is alias to ftp_quit() ).
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*
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* NOTE:
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* resource is set to null since unset() can't unset the variable.
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*
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* @param resource &$control FTP resource
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*
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* @access public
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* @return boolean
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*/
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if (!function_exists('ftp_quit')) {
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function ftp_quit(&$control)
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{
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if (!is_resource($control)) {
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return false;
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}
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fputs($control, 'QUIT'."\r\n");
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fclose($control);
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$control = null;
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return true;
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}
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}
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/**
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* Alias to ftp_quit()
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*
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* @param resource &$control FTP resource
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*
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* @see ftp_quit()
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* @access public
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* @return boolean
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*/
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if (!function_exists('ftp_close')) {
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function ftp_close(&$control)
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{
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return ftp_quit($control);
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}
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}
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/**
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* string ftp_pwd ( resource stream );
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*
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* Gets the current directory name.
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* Returns the current directory.
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*
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* Needs data connection: NO
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* Success response code: 257
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*
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* @param resource &$control FTP resource
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*
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* @access public
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* @return string
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*/
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if (!function_exists('ftp_pwd')) {
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function ftp_pwd(&$control)
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{
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if (!is_resource($control)) {
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return $control;
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}
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fputs($control, 'PWD'."\r\n");
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$content = array();
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do {
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$content[] = fgets($control, 8192);
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$array = socket_get_status($control);
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} while ($array['unread_bytes'] > 0);
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if (substr($cont = $content[count($content)-1], 0, 3) == 257) {
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$pos = strpos($cont, '"')+1;
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$pos2 = strrpos($cont, '"') - $pos;
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$path = substr($cont, $pos, $pos2);
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return $path;
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}
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return false;
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}
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}
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/**
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* boolean ftp_chdir ( resource stream, string directory );
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*
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* Changes the current directory to the specified directory.
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* Returns TRUE on success or FALSE on failure.
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*
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* FTP success response code: 250
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* Needs data connection: NO
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*
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* @param resource &$control FTP stream
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* @param string $pwd Directory name
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*
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* @access public
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* @return boolean
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*/
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if (!function_exists('ftp_chdir')) {
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function ftp_chdir(&$control, $pwd)
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{
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if (!is_resource($control) || !is_string($pwd)) {
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return false;
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}
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fputs($control, 'CWD '.$pwd."\r\n");
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$content = array();
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do {
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$content[] = fgets($control, 8192);
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$array = socket_get_status($control);
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} while ($array['unread_bytes'] > 0);
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if (substr($content[count($content)-1], 0, 3) == 250) {
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return true;
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}
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trigger_error('ftp_chdir() [<a
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href="function.ftp-chdir">function.ftp-chdir</a>]:
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' .$content[count($content)-1], E_USER_WARNING);
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return false;
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}
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}
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$_NET_FTP = array();
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$_NET_FTP['USE_PASSIVE'] = false;
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$_NET_FTP['DATA'] = null;
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/**
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* boolean ftp_pasv ( resource stream, boolean passive );
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*
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* Toggles passive mode ON/OFF.
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* Returns TRUE on success or FALSE on failure.
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*
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* Comment:
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* Although my lack of C knowlege I checked how the PHP FTP extension
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* do things here. Seems like they create the data connection and store
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* it in object for other functions to use.
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* This is now done here.
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*
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* FTP success response code: 227
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*
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* @param stream &$control FTP stream
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* @param boolean $pasv True to switch to passive, false for active mode
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*
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* @access public
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* @return boolean
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*/
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if (!function_exists('ftp_pasv')) {
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function ftp_pasv(&$control, $pasv)
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{
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if (!is_resource($control) || !is_bool($pasv)) {
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return false;
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}
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// If data connection exists, destroy it
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if (isset($GLOBALS['_NET_FTP']['DATA'])) {
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fclose($GLOBALS['_NET_FTP']['DATA']);
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$GLOBALS['_NET_FTP']['DATA'] = null;
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do {
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fgets($control, 16);
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$array = socket_get_status($control);
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} while ($array['unread_bytes'] > 0);
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}
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// Are we suppost to create active or passive connection?
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if (!$pasv) {
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$GLOBALS['_NET_FTP']['USE_PASSIVE'] = false;
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// Pick random "low bit"
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$low = rand(39, 250);
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// Pick random "high bit"
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$high = rand(39, 250);
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// Lowest possible port would be; 10023
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// Highest possible port would be; 64246
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$port = ($low<<8)+$high;
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$ip = str_replace('.', ',', $_SERVER['SERVER_ADDR']);
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$s = $ip.','.$low.','.$high;
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$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
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if (is_resource($socket)) {
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if (socket_bind($socket, '0.0.0.0', $port)) {
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if (socket_listen($socket)) {
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$GLOBALS['_NET_FTP']['DATA'] = &$socket;
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fputs($control, 'PORT '.$s."\r\n");
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$line = fgets($control, 512);
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if (substr($line, 0, 3) == 200) {
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return true;
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}
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}
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}
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}
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return false;
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}
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// Since we are here, we are suppost to create passive data connection.
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fputs($control, 'PASV' ."\r\n");
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$content = array();
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do {
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$content[] = fgets($control, 128);
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$array = socket_get_status($control);
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} while ($array['unread_bytes']);
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if (substr($cont = $content[count($content)-1], 0, 3) != 227) {
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return false;
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}
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$pos = strpos($cont, '(')+1;
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$pos2 = strrpos($cont, ')')-$pos;
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$string = substr($cont, $pos, $pos2);
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$array = explode(',', $string);
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// IP we are connecting to
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$ip = $array[0]. '.' .$array[1]. '.' .$array[2]. '.' .$array[3];
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// Port ( 256*lowbit + highbit
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$port = ($array[4] << 8)+$array[5];
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// Our data connection
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$iError = 0;
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$sError = '';
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$data = fsockopen($ip, $port, $iError, $sError,
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$GLOBALS['_NET_FTP']['timeout']);
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if (is_resource($data)) {
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$GLOBALS['_NET_FTP']['USE_PASSIVE'] = true;
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$GLOBALS['_NET_FTP']['DATA'] = &$data;
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stream_set_blocking($data, true);
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stream_set_timeout($data, $GLOBALS['_NET_FTP']['timeout']);
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return true;
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}
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return false;
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}
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}
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/**
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* array ftp_rawlist ( resource stream, string directory [,bool recursive] );
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*
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* Returns a detailed list of files in the given directory.
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*
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* Needs data connection: YES
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*
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* @param integer &$control FTP resource
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* @param string $pwd Path to retrieve
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* @param boolean $recursive Optional, retrieve recursive listing
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*
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* @todo Enable the recursive feature.
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* @access public
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* @return array
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*/
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if (!function_exists('ftp_rawlist')) {
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function ftp_rawlist(&$control, $pwd, $recursive = false)
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{
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if (!is_resource($control) || !is_string($pwd)) {
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return false;
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}
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if (!isset($GLOBALS['_NET_FTP']['DATA']) ||
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!is_resource($GLOBALS['_NET_FTP']['DATA'])) {
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ftp_pasv($control, $GLOBALS['_NET_FTP']['USE_PASSIVE']);
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}
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fputs($control, 'LIST '.$pwd."\r\n");
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$msg = fgets($control, 512);
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if (substr($msg, 0, 3) == 425) {
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return false;
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}
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$data = &$GLOBALS['_NET_FTP']['DATA'];
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if (!$GLOBALS['_NET_FTP']['USE_PASSIVE']) {
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$data = &socket_accept($data);
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}
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$content = array();
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switch ($GLOBALS['_NET_FTP']['USE_PASSIVE']) {
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case true:
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while (true) {
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$string = rtrim(fgets($data, 1024));
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if ($string=='') {
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break;
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}
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$content[] = $string;
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}
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fclose($data);
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break;
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case false:
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$string = socket_read($data, 1024, PHP_BINARY_READ);
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$content = explode("\n", $string);
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unset($content[count($content)-1]);
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socket_close($GLOBALS['_NET_FTP']['DATA']);
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socket_close($data);
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break;
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}
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$data = $GLOBALS['_NET_FTP']['DATA'] = null;
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fgets($control, 1024);
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return $content;
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}
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}
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/**
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* string ftp_systype ( resource stream );
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*
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* Gets system type identifier of remote FTP server
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* Returns the remote system type
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*
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* @param resource &$control FTP resource
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*
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* @access public
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* @return string
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*/
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if (!function_exists('ftp_systype')) {
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function ftp_systype(&$control)
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{
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if (!is_resource($control)) {
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return false;
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}
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fputs($control, 'SYST'."\r\n");
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$line = fgets($control, 256);
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if (substr($line, 0, 3) != 215) {
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return false;
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}
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$os = substr($line, 4, strpos($line, ' ', 4)-4);
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return $os;
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}
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}
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/**
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* boolean ftp_alloc ( resource stream, integer bytes [, string &message ] );
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*
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* Allocates space for a file to be uploaded
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* Return TRUE on success or FALSE on failure
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*
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* NOTE; Many FTP servers do not support this command and/or don't need it.
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*
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* FTP success respons key: Belive it's 200
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* Needs data connection: NO
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*
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* @param resource &$control FTP stream
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* @param integer $int Space to allocate
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* @param string &$msg Optional, textual representation of the servers response
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* will be returned by reference
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*
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* @access public
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* @return boolean
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*/
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if (!function_exists('ftp_alloc')) {
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function ftp_alloc(&$control, $int, &$msg = null)
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{
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if (!is_resource($control) || !is_integer($int)) {
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return false;
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}
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fputs($control, 'ALLO '.$int.' R '.$int."\r\n");
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$msg = rtrim(fgets($control, 256));
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$code = substr($msg, 0, 3);
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if ($code == 200 || $code == 202) {
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return true;
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}
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return false;
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}
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}
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|
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/**
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* bool ftp_put ( resource stream, string remote_file, string local_file,
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* int mode [, int startpos ] );
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*
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* Uploads a file to the FTP server
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* Returns TRUE on success or FALSE on failure.
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*
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* NOTE:
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* The transfer mode specified must be either FTP_ASCII or FTP_BINARY.
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*
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* @param resource &$control FTP stream
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* @param string $remote Remote file to write
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* @param string $local Local file to upload
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* @param integer $mode Upload mode, FTP_ASCI || FTP_BINARY
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* @param integer $pos Optional, start upload at position
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*
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* @access public
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* @return boolean
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*/
|
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if (!function_exists('ftp_put')) {
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function ftp_put(&$control, $remote, $local, $mode, $pos = 0)
|
|
{
|
|
if (!is_resource($control) || !is_readable($local) ||
|
|
!is_integer($mode) || !is_integer($pos)) {
|
|
return false;
|
|
}
|
|
|
|
$types = array (
|
|
0 => 'A',
|
|
1 => 'I'
|
|
);
|
|
$windows = array (
|
|
0 => 't',
|
|
1 => 'b'
|
|
);
|
|
|
|
/**
|
|
* TYPE values:
|
|
* A ( ASCII )
|
|
* I ( BINARY )
|
|
* E ( EBCDIC )
|
|
* L ( BYTE )
|
|
*/
|
|
|
|
if (!isset($GLOBALS['_NET_FTP']['DATA']) ||
|
|
!is_resource($GLOBALS['_NET_FTP']['DATA'])) {
|
|
ftp_pasv($control, $GLOBALS['_NET_FTP']['USE_PASSIVE']);
|
|
}
|
|
|
|
// Establish data connection variable
|
|
$data = &$GLOBALS['_NET_FTP']['DATA'];
|
|
|
|
// Decide TYPE to use
|
|
fputs($control, 'TYPE '.$types[$mode]."\r\n");
|
|
$line = fgets($control, 256); // "Type set to TYPE"
|
|
if (substr($line, 0, 3) != 200) {
|
|
return false;
|
|
}
|
|
|
|
fputs($control, 'STOR '.$remote."\r\n");
|
|
sleep(1);
|
|
$line = fgets($control, 256); // "Opening TYPE mode data connect."
|
|
|
|
if (substr($line, 0, 3) != 150) {
|
|
return false;
|
|
}
|
|
|
|
// Creating resource to $local file
|
|
$fp = fopen($local, 'r'. $windows[$mode]);
|
|
if (!is_resource($fp)) {
|
|
$fp = null;
|
|
return false;
|
|
}
|
|
|
|
// Loop throu that file and echo it to the data socket
|
|
$i = 0;
|
|
switch ($GLOBALS['_NET_FTP']['USE_PASSIVE']) {
|
|
case false:
|
|
$data = &socket_accept($data);
|
|
while (!feof($fp)) {
|
|
$i += socket_write($data, fread($fp, 10240), 10240);
|
|
}
|
|
socket_close($data);
|
|
break;
|
|
|
|
case true:
|
|
while (!feof($fp)) {
|
|
$i += fputs($data, fread($fp, 10240), 10240);
|
|
}
|
|
fclose($data);
|
|
break;
|
|
}
|
|
|
|
$data = null;
|
|
do {
|
|
$line = fgets($control, 256);
|
|
} while (substr($line, 0, 4) != "226 ");
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Retrieve a remote file to a local file
|
|
* Returns TRUE on success or FALSE on failure
|
|
*
|
|
* @param integer &$control Stream ID
|
|
* @param string $local Local filename
|
|
* @param string $remote Remote filename
|
|
* @param integer $mode Transfer mode (FTP_ASCII or FTP_BINARY)
|
|
* @param integer $resume Resume the file transfer or not
|
|
*
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
if (!function_exists('ftp_get')) {
|
|
function ftp_get(&$control, $local, $remote, $mode, $resume = 0)
|
|
{
|
|
if (!is_resource($control) || !is_writable(dirname($local)) ||
|
|
!is_integer($mode) || !is_integer($resume)) {
|
|
return false;
|
|
}
|
|
$types = array (
|
|
0 => 'A',
|
|
1 => 'I'
|
|
);
|
|
$windows = array (
|
|
0 => 't',
|
|
1 => 'b'
|
|
);
|
|
|
|
if (!isset($GLOBALS['_NET_FTP']['DATA']) ||
|
|
!is_resource($GLOBALS['_NET_FTP'][ 'DATA'])) {
|
|
ftp_pasv($control, $GLOBALS['_NET_FTP']['USE_PASSIVE']);
|
|
}
|
|
|
|
fputs($control, 'TYPE '.$types[$mode]."\r\n");
|
|
$line = fgets($control, 256);
|
|
if (substr($line, 0, 3) != 200) {
|
|
return false;
|
|
}
|
|
|
|
$fp = fopen($local, 'w'.$windows[$mode]);
|
|
if (!is_resource($fp)) {
|
|
$fp = null;
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Changes to the parent directory
|
|
* Returns TRUE on success or FALSE on failure
|
|
*
|
|
* @param integer &$control Stream ID
|
|
*
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
if (!function_exists('ftp_cdup')) {
|
|
function ftp_cdup(&$control)
|
|
{
|
|
fputs($control, 'CDUP'."\r\n");
|
|
$line = fgets($control, 256);
|
|
|
|
if (substr($line, 0, 3) != 250) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set permissions on a file via FTP
|
|
* Returns the new file permission on success or false on error
|
|
*
|
|
* NOTE: This command is *not* supported by the standard
|
|
* NOTE: This command not ready!
|
|
*
|
|
* @param integer &$control Stream ID
|
|
* @param integer $mode Octal value
|
|
* @param string $file File to change permissions on
|
|
*
|
|
* @todo Figure out a way to chmod files via FTP
|
|
* @access public
|
|
* @return integer
|
|
*/
|
|
if (!function_exists('ftp_chmod')) {
|
|
function ftp_chmod(&$control, $mode, $file)
|
|
{
|
|
if (!is_resource($control) || !is_integer($mode) || !is_string($file)) {
|
|
return false;
|
|
}
|
|
|
|
// chmod not in the standard, proftpd doesn't recognize it
|
|
// use SITE CHMOD?
|
|
fputs($control, 'SITE CHMOD '.$mode. ' ' .$file."\r\n");
|
|
$line = fgets($control, 256);
|
|
|
|
if (substr($line, 0, 3) == 200) {
|
|
return $mode;
|
|
}
|
|
|
|
trigger_error('ftp_chmod() [<a
|
|
href="function.ftp-chmod">function.ftp-chmod</a>]: ' .
|
|
rtrim($line), E_USER_WARNING);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Deletes a file on the FTP server
|
|
* Returns TRUE on success or FALSE on failure
|
|
*
|
|
* @param integer &$control Stream ID
|
|
* @param string $path File to delete
|
|
*
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
if (!function_exists('ftp_delete')) {
|
|
function ftp_delete(&$control, $path)
|
|
{
|
|
if (!is_resource($control) || !is_string($path)) {
|
|
return false;
|
|
}
|
|
|
|
fputs($control, 'DELE '.$path."\r\n");
|
|
$line = fgets($control, 256);
|
|
|
|
if (substr($line, 0, 3) == 250) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Requests execution of a program on the FTP server
|
|
* NOTE; SITE EXEC is *not* supported by the standart
|
|
* Returns TRUE on success or FALSE on error
|
|
*
|
|
* @param integer &$control Stream ID
|
|
* @param string $cmd Command to send
|
|
*
|
|
* @access public
|
|
* @todo Look a littlebit better into this
|
|
* @return boolean
|
|
*/
|
|
if (!function_exists('ftp_exec')) {
|
|
function ftp_exec(&$control, $cmd)
|
|
{
|
|
if (!is_resource($control) || !is_string($cmd)) {
|
|
return false;
|
|
}
|
|
|
|
// Command not defined in the standart
|
|
// proftpd doesn't recognize SITE EXEC (only help,chgrp,chmod and ratio)
|
|
fputs($control, 'SITE EXEC '.$cmd."\r\n");
|
|
$line = fgets($control, 256);
|
|
|
|
// php.net/ftp_exec uses respons code 200 to verify if command was sent
|
|
// successfully or not, so we'll just do the same
|
|
if (substr($line, 0, 3) == 200) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|
|
?>
|