<?php
/**
* @brief FTP Class
* @author <a href='https://www.invisioncommunity.com'>Invision Power Services, Inc.</a>
* @copyright (c) Invision Power Services, Inc.
* @license https://www.invisioncommunity.com/legal/standards/
* @package Invision Community
* @since 06 May 2013
*/
namespace IPS;
/* To prevent PHP errors (extending class does not exist) revealing path */
if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
{
header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
exit;
}
/**
* FTP Class
*/
class _Ftp
{
/**
* @brief Connection resource
*/
protected $ftp;
/**
* Constructor
*
* @param string $host Hostname
* @param string $username Username
* @param string $password Password
* @param int $port Port
* @param bool $secure Use secure SSL-FTP connection?
* @param int $timeout Timeout (in seconds)
* @return void
* @throws \IPS\Ftp\Exception
*/
public function __construct( $host, $username, $password, $port=21, $secure=FALSE, $timeout=10 )
{
if ( $secure )
{
if( !function_exists('ftp_ssl_connect') )
{
throw new \IPS\Ftp\Exception( 'SSL_NOT_AVAILABLE' );
}
$this->ftp = @ftp_ssl_connect( $host, $port, $timeout );
}
else
{
$this->ftp = @ftp_connect( $host, $port, $timeout );
}
if ( $this->ftp === FALSE )
{
throw new \IPS\Ftp\Exception( 'COULD_NOT_CONNECT' );
}
if ( !@ftp_login( $this->ftp, $username, $password ) )
{
throw new \IPS\Ftp\Exception( 'COULD_NOT_LOGIN' );
}
/* Typically if passive mode is required, ftp_nlist will return FALSE instead of an array */
if( $this->ls() === FALSE )
{
@ftp_pasv( $this->ftp, true );
}
}
/**
* Destructor
*
* @return void
*/
public function __destruct()
{
@ftp_close( $this->ftp );
}
/**
* chdir
*
* @param string $dir Directory
* @return void
* @throws \IPS\Ftp\Exception
*/
public function chdir( $dir )
{
if ( !@ftp_chdir( $this->ftp, $dir ) )
{
throw new \IPS\Ftp\Exception( 'COULD_NOT_CHDIR' );
}
}
/**
* cdup
*
* @return void
* @throws \IPS\Ftp\Exception
*/
public function cdup()
{
if ( !@ftp_cdup( $this->ftp ) )
{
throw new \IPS\Ftp\Exception( 'COULD_NOT_CDUP' );
}
}
/**
* mkdir
*
* @param string $dir Directory
* @return void
* @throws \IPS\Ftp\Exception
*/
public function mkdir( $dir )
{
if ( !@ftp_mkdir( $this->ftp, $dir ) )
{
throw new \IPS\Ftp\Exception( 'COULD_NOT_MKDIR' );
}
}
/**
* ls
*
* @param string $path Argument to pass to ftp_nlist
* @return array|bool
*/
public function ls( $path = '.' )
{
return ftp_nlist( $this->ftp, $path );
}
/**
* Raw list
*
* @param string $path Argument to pass to ftp_nlist
* @return array
*/
public function rawList( $path = '.', $recursive = FALSE )
{
return ftp_rawlist( $this->ftp, $path, $recursive );
}
/**
* Upload File
*
* @param string $filename Filename to use
* @param string $file Path to local file
* @return void
* @throws \IPS\Ftp\Exception
*/
public function upload( $filename, $file )
{
if ( !@ftp_put( $this->ftp, $filename, $file, FTP_BINARY ) )
{
throw new \IPS\Ftp\Exception( 'COULD_NOT_UPLOAD' );
}
}
/**
* Download File
*
* @param string $filename The file to download
* @param string|null $target Location to save downloaded file or NULL to return contents
* @param bool $returnPath Return the path to the downloaded file instead of the contents
* @return string File contents
* @throws \IPS\Ftp\Exception
*/
public function download( $filename, $target=NULL, $returnPath=FALSE )
{
$temp = FALSE;
if ( $target === NULL )
{
$temp = TRUE;
$target = tempnam( \IPS\TEMP_DIRECTORY, 'IPS' );
}
if ( !@ftp_get( $this->ftp, $target, $filename, FTP_BINARY ) )
{
throw new \IPS\Ftp\Exception( 'COULD_NOT_DOWNLOAD' );
}
/* We use this to avoid out of memory errors - just return path */
if( $returnPath === TRUE )
{
return $target;
}
$result = file_get_contents( $target );
if ( $temp )
{
@unlink( $target );
}
return $result;
}
/**
* CHMOD
*
* @param string $filename The file to CHMOD
* @param int $mode Mode (in octal form)
* @return @e void
* @throws Exception CHMOD_ERROR
*/
public function chmod( $filename, $mode )
{
if( !@ftp_chmod( $this->ftp, $mode, $filename ) )
{
throw new \IPS\Ftp\Exception( 'CHMOD_ERROR' );
}
}
/**
* Delete file
*
* @param string $file Path to file
* @return void
* @throws \IPS\Ftp\Exception
*/
public function delete( $file )
{
if ( !@ftp_delete( $this->ftp, $file ) )
{
throw new \IPS\Ftp\Exception( 'COULD_NOT_DELETE' );
}
}
/**
* Get file size (if possible)
*
* @param string $file Path to file
* @return float
*/
public function size( $file )
{
$size = @ftp_size( $this->ftp, $file );
if ( !$size OR $size == -1 )
{
$size = 0;
$rawValue = @ftp_raw( $this->ftp, "SIZE " . $file );
if( mb_substr( $rawValue[0], 0, 3 ) == 213 )
{
$size = str_replace( '213 ', '', $rawValue[0] );
}
}
return sprintf( "%u", $size );
}
/**
* Delete directory
*
* @param string $dir Path to directory
* @param bool $recursive Recursive? (If FALSE and directory is not empty, operation will fail)
* @return void
* @throws \IPS\Ftp\Exception
*/
public function rmdir( $dir, $recursive=FALSE )
{
if ( $recursive )
{
$this->chdir( $dir );
foreach ( ftp_rawlist( $this->ftp, '.' ) as $data )
{
preg_match( '/^(.).*\s(.*)$/', $data, $matches );
if ( $matches[2] !== '.' and $matches[2] !== '..' )
{
if ( $matches[1] === 'd' )
{
$this->rmdir( $matches[2], TRUE );
}
else
{
$this->delete( $matches[2] );
}
}
}
$this->cdup();
}
if ( !@ftp_rmdir( $this->ftp, $dir ) )
{
throw new \IPS\Ftp\Exception( 'COULD_NOT_DELETE' );
}
}
}