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<?php
/**
 * PemFTP - An Ftp implementation in pure PHP
 *
 * @package PemFTP
 * @since 2.5.0
 *
 * @version 1.0
 * @copyright Alexey Dotsenko
 * @author Alexey Dotsenko
 * @link https://www.phpclasses.org/package/1743-PHP-FTP-client-in-pure-PHP.html
 * @license LGPL https://opensource.org/licenses/lgpl-license.html
 */

/**
 * Defines the newline characters, if not defined already.
 *
 * This can be redefined.
 *
 * @since 2.5.0
 * @var string
 */
if ( ! defined( 'CRLF' ) ) {
	define( 'CRLF', "\r\n" );
}

/**
 * Sets whatever to autodetect ASCII mode.
 *
 * This can be redefined.
 *
 * @since 2.5.0
 * @var int
 */
if ( ! defined( 'FTP_AUTOASCII' ) ) {
	define( 'FTP_AUTOASCII', -1 );
}

/**
 *
 * This can be redefined.
 * @since 2.5.0
 * @var int
 */
if ( ! defined( 'FTP_BINARY' ) ) {
	define( 'FTP_BINARY', 1 );
}

/**
 *
 * This can be redefined.
 * @since 2.5.0
 * @var int
 */
if ( ! defined( 'FTP_ASCII' ) ) {
	define( 'FTP_ASCII', 0 );
}

/**
 * Whether to force FTP.
 *
 * This can be redefined.
 *
 * @since 2.5.0
 * @var bool
 */
if ( ! defined( 'FTP_FORCE' ) ) {
	define( 'FTP_FORCE', true );
}

/**
 * @since 2.5.0
 * @var string
 */
define('FTP_OS_Unix','u');

/**
 * @since 2.5.0
 * @var string
 */
define('FTP_OS_Windows','w');

/**
 * @since 2.5.0
 * @var string
 */
define('FTP_OS_Mac','m');

/**
 * PemFTP base class
 *
 */
class ftp_base {
	/* Public variables */
	var $LocalEcho;
	var $Verbose;
	var $OS_local;
	var $OS_remote;

/* Private variables */
	var $_lastaction;
	var $_errors;
	var $_type;
	var $_umask;
	var $_timeout;
	var $_passive;
	var $_host;
	var $_fullhost;
	var $_port;
	var $_datahost;
	var $_dataport;
	var $_ftp_control_sock;
	var $_ftp_data_sock;
	var $_ftp_temp_sock;
	var $_ftp_buff_size;
	var $_login;
	var $_password;
	var $_connected;
	var $_ready;
	var $_code;
	var $_message;
	var $_can_restore;
	var $_port_available;
	var $_curtype;
	var $_features;

var $_error_array;
	var $AuthorizedTransferMode;
	var $OS_FullName;
	var $_eol_code;
	var $AutoAsciiExt;

/* Constructor */
	function __construct($port_mode=FALSE, $verb=FALSE, $le=FALSE) {
		$this->LocalEcho=$le;
		$this->Verbose=$verb;
		$this->_lastaction=NULL;
		$this->_error_array=array();
		$this->_eol_code=array(FTP_OS_Unix=>"\n", FTP_OS_Mac=>"\r", FTP_OS_Windows=>"\r\n");
		$this->AuthorizedTransferMode=array(FTP_AUTOASCII, FTP_ASCII, FTP_BINARY);
		$this->OS_FullName=array(FTP_OS_Unix => 'UNIX', FTP_OS_Windows => 'WINDOWS', FTP_OS_Mac => 'MACOS');
		$this->AutoAsciiExt=array("ASP","BAT","C","CPP","CSS","CSV","JS","H","HTM","HTML","SHTML","INI","LOG","PHP3","PHTML","PL","PERL","SH","SQL","TXT");
		$this->_port_available=($port_mode==TRUE);
		$this->SendMSG("Staring FTP client class".($this->_port_available?"":" without PORT mode support"));
		$this->_connected=FALSE;
		$this->_ready=FALSE;
		$this->_can_restore=FALSE;
		$this->_code=0;
		$this->_message="";
		$this->_ftp_buff_size=4096;
		$this->_curtype=NULL;
		$this->SetUmask(0022);
		$this->SetType(FTP_AUTOASCII);
		$this->SetTimeout(30);
		$this->Passive(!$this->_port_available);
		$this->_login="anonymous";
		$this->_password="anon@ftp.com";
		$this->_features=array();
	    $this->OS_local=FTP_OS_Unix;
		$this->OS_remote=FTP_OS_Unix;
		$this->features=array();
		if(strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') $this->OS_local=FTP_OS_Windows;
		elseif(strtoupper(substr(PHP_OS, 0, 3)) === 'MAC') $this->OS_local=FTP_OS_Mac;
	}

function ftp_base($port_mode=FALSE) {
		$this->__construct($port_mode);
	}

// 
// 
//

return $b;
	}

function SendMSG($message = "", $crlf=true) {
		if ($this->Verbose) {
			echo $message.($crlf?CRLF:"");
			flush();
		}
		return TRUE;
	}

function SetType($mode=FTP_AUTOASCII) {
		if(!in_array($mode, $this->AuthorizedTransferMode)) {
			$this->SendMSG("Wrong type");
			return FALSE;
		}
		$this->_type=$mode;
		$this->SendMSG("Transfer type: ".($this->_type==FTP_BINARY?"binary":($this->_type==FTP_ASCII?"ASCII":"auto ASCII") ) );
		return TRUE;
	}

function Passive($pasv=NULL) {
		if(is_null($pasv)) $this->_passive=!$this->_passive;
		else $this->_passive=$pasv;
		if(!$this->_port_available and !$this->_passive) {
			$this->SendMSG("Only passive connections available!");
			$this->_passive=TRUE;
			return FALSE;
		}
		$this->SendMSG("Passive mode ".($this->_passive?"on":"off"));
		return TRUE;
	}

function SetUmask($umask=0022) {
		$this->_umask=$umask;
		umask($this->_umask);
		$this->SendMSG("UMASK 0".decoct($this->_umask));
		return TRUE;
	}

function SetTimeout($timeout=30) {
		$this->_timeout=$timeout;
		$this->SendMSG("Timeout ".$this->_timeout);
		if($this->_connected)
			if(!$this->_settimeout($this->_ftp_control_sock)) return FALSE;
		return TRUE;
	}

function quit($force=false) {
		if($this->_ready) {
			if(!$this->_exec("QUIT") and !$force) return FALSE;
			if(!$this->_checkCode() and !$force) return FALSE;
			$this->_ready=false;
			$this->SendMSG("Session finished");
		}
		$this->_quit();
		return TRUE;
	}

function pwd() {
		if(!$this->_exec("PWD", "pwd")) return FALSE;
		if(!$this->_checkCode()) return FALSE;
		return preg_replace("/^[0-9]{3} \"(.+)\".*$/s", "\\1", $this->_message);
	}

function cdup() {
		if(!$this->_exec("CDUP", "cdup")) return FALSE;
		if(!$this->_checkCode()) return FALSE;
		return true;
	}

function chdir($pathname) {
		if(!$this->_exec("CWD ".$pathname, "chdir")) return FALSE;
		if(!$this->_checkCode()) return FALSE;
		return TRUE;
	}

function rmdir($pathname) {
		if(!$this->_exec("RMD ".$pathname, "rmdir")) return FALSE;
		if(!$this->_checkCode()) return FALSE;
		return TRUE;
	}

function mkdir($pathname) {
		if(!$this->_exec("MKD ".$pathname, "mkdir")) return FALSE;
		if(!$this->_checkCode()) return FALSE;
		return TRUE;
	}

function rename($from, $to) {
		if(!$this->_exec("RNFR ".$from, "rename")) return FALSE;
		if(!$this->_checkCode()) return FALSE;
		if($this->_code==350) {
			if(!$this->_exec("RNTO ".$to, "rename")) return FALSE;
			if(!$this->_checkCode()) return FALSE;
		} else return FALSE;
		return TRUE;
	}

function abort() {
		if(!$this->_exec("ABOR", "abort")) return FALSE;
		if(!$this->_checkCode()) {
			if($this->_code!=426) return FALSE;
			if(!$this->_readmsg("abort")) return FALSE;
			if(!$this->_checkCode()) return FALSE;
		}
		return true;
	}

function systype() {
		if(!$this->_exec("SYST", "systype")) return FALSE;
		if(!$this->_checkCode()) return FALSE;
		$DATA = explode(" ", $this->_message);
		return array($DATA[1], $DATA[3]);
	}

function delete($pathname) {
		if(!$this->_exec("DELE ".$pathname, "delete")) return FALSE;
		if(!$this->_checkCode()) return FALSE;
		return TRUE;
	}

function site($command, $fnction="site") {
		if(!$this->_exec("SITE ".$command, $fnction)) return FALSE;
		if(!$this->_checkCode()) return FALSE;
		return TRUE;
	}

function chmod($pathname, $mode) {
		if(!$this->site( sprintf('CHMOD %o %s', $mode, $pathname), "chmod")) return FALSE;
		return TRUE;
	}

function rawlist($pathname="", $arg="") {
		return $this->_list(($arg?" ".$arg:"").($pathname?" ".$pathname:""), "LIST", "rawlist");
	}

function nlist($pathname="", $arg="") {
		return $this->_list(($arg?" ".$arg:"").($pathname?" ".$pathname:""), "NLST", "nlist");
	}

function is_exists($pathname) {
		return $this->file_exists($pathname);
	}

function file_exists($pathname) {
		$exists=true;
		if(!$this->_exec("RNFR ".$pathname, "rename")) $exists=FALSE;
		else {
			if(!$this->_checkCode()) $exists=FALSE;
			$this->abort();
		}
		if($exists) $this->SendMSG("Remote file ".$pathname." exists");
		else $this->SendMSG("Remote file ".$pathname." does not exist");
		return $exists;
	}

function put($localfile, $remotefile=NULL, $rest=0) {
		if(is_null($remotefile)) $remotefile=$localfile;
		if (!file_exists($localfile)) {
			$this->PushError("put","cannot open local file", "No such file or directory \"".$localfile."\"");
			return FALSE;
		}
		$fp = @fopen($localfile, "r");

if (!$fp) {
			$this->PushError("put","cannot open local file", "Cannot read file \"".$localfile."\"");
			return FALSE;
		}
		if($this->_can_restore and $rest!=0) fseek($fp, $rest);
		$pi=pathinfo($localfile);
		if($this->_type==FTP_ASCII or ($this->_type==FTP_AUTOASCII and in_array(strtoupper($pi["extension"]), $this->AutoAsciiExt))) $mode=FTP_ASCII;
		else $mode=FTP_BINARY;
		if(!$this->_data_prepare($mode)) {
			fclose($fp);
			return FALSE;
		}
		if($this->_can_restore and $rest!=0) $this->restore($rest);
		if(!$this->_exec("STOR ".$remotefile, "put")) {
			$this->_data_close();
			fclose($fp);
			return FALSE;
		}
		if(!$this->_checkCode()) {
			$this->_data_close();
			fclose($fp);
			return FALSE;
		}
		$ret=$this->_data_write($mode, $fp);
		fclose($fp);
		$this->_data_close();
		if(!$this->_readmsg()) return FALSE;
		if(!$this->_checkCode()) return FALSE;
		return $ret;
	}

}

function mdel($remote, $continious=false) {
		$list=$this->rawlist($remote, "-la");
		if($list===false) {
			$this->PushError("mdel","cannot read remote folder list", "Cannot read remote folder \"".$remote."\" contents");
			return false;
		}

foreach($list as $k=>$v) {
			$list[$k]=$this->parselisting($v);
			if( ! $list[$k] or $list[$k]["name"]=="." or $list[$k]["name"]=="..") unset($list[$k]);
		}
		$ret=true;

foreach($list as $el) {
			if ( empty($el) )
				continue;

if($el["type"]=="d") {
				if(!$this->mdel($remote."/".$el["name"], $continious)) {
					$ret=false;
					if(!$continious) break;
				}
			} else {
				if (!$this->delete($remote."/".$el["name"])) {
					$this->PushError("mdel", "cannot delete file", "Cannot delete remote file \"".$remote."/".$el["name"]."\"");
					$ret=false;
					if(!$continious) break;
				}
			}
		}

if(!$this->rmdir($remote)) {
			$this->PushError("mdel", "cannot delete folder", "Cannot delete remote folder \"".$remote."/".$el["name"]."\"");
			$ret=false;
		}
		return $ret;
	}

function mmkdir($dir, $mode = 0777) {
		if(empty($dir)) return FALSE;
		if($this->is_exists($dir) or $dir == "/" ) return TRUE;
		if(!$this->mmkdir(dirname($dir), $mode)) return false;
		$r=$this->mkdir($dir, $mode);
		$this->chmod($dir,$mode);
		return $r;
	}

function glob_regexp($pattern,$subject) {
		$sensitive=(PHP_OS!='WIN32');
		return ($sensitive?
			preg_match( '/' . preg_quote( $pattern, '/' ) . '/', $subject ) :
			preg_match( '/' . preg_quote( $pattern, '/' ) . '/i', $subject )
		);
	}

function dirlist($remote) {
		$list=$this->rawlist($remote, "-la");
		if($list===false) {
			$this->PushError("dirlist","cannot read remote folder list", "Cannot read remote folder \"".$remote."\" contents");
			return false;
		}

$dirlist = array();
		foreach($list as $k=>$v) {
			$entry=$this->parselisting($v);
			if ( empty($entry) )
				continue;

if($entry["name"]=="." or $entry["name"]=="..")
				continue;

$dirlist[$entry['name']] = $entry;
		}

return $dirlist;
	}
// 
// 
// 
	function _checkCode() {
		return ($this->_code<400 and $this->_code>0);
	}

// 
// 
// 
// Gnre une erreur pour traitement externe  la classe
	function PushError($fctname,$msg,$desc=false){
		$error=array();
		$error['time']=time();
		$error['fctname']=$fctname;
		$error['msg']=$msg;
		$error['desc']=$desc;
		if($desc) $tmp=' ('.$desc.')'; else $tmp='';
		$this->SendMSG($fctname.': '.$msg.$tmp);
		return(array_push($this->_error_array,$error));
	}

// Rcupre une erreur externe
	function PopError(){
		if(count($this->_error_array)) return(array_pop($this->_error_array));
			else return(false);
	}
}

$mod_sockets = extension_loaded( 'sockets' );
if ( ! $mod_sockets && function_exists( 'dl' ) && is_callable( 'dl' ) ) {
	$prefix = ( PHP_SHLIB_SUFFIX == 'dll' ) ? 'php_' : '';
	@dl( $prefix . 'sockets.' . PHP_SHLIB_SUFFIX ); // phpcs:ignore PHPCompatibility.FunctionUse.RemovedFunctions.dlDeprecated
	$mod_sockets = extension_loaded( 'sockets' );
}

require_once __DIR__ . "/class-ftp-" . ( $mod_sockets ? "sockets" : "pure" ) . ".php";

if ( $mod_sockets ) {
	class ftp extends ftp_sockets {}
} else {
	class ftp extends ftp_pure {}
}