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<?php
// ensure this file is being included by a parent file
if( ! defined( '_JEXEC' ) && ! defined( '_VALID_MOS' ) )
die( 'Restricted access' ) ;
/**
* @version $Id: init.php 143 2009-04-01 18:48:16Z soeren $
* @package eXtplorer
* @copyright soeren 2009
* @author bas weermann (http://www.php.net/manual/de/function.ssh2-sftp.php#83174)
*
* @license
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* Alternatively, the contents of this file may be used under the terms
* of the GNU General Public License Version 2 or later (the "GPL"), in
* which case the provisions of the GPL are applicable instead of
* those above. If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use
* your version of this file under the MPL, indicate your decision by
* deleting the provisions above and replace them with the notice and
* other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this file
* under either the MPL or the GPL."
*
* This file handles SFTP (ssh2) connections
*/
require_once dirname( __FILE__ ) . '/PEAR.php' ;
class SFTPConnection extends PEAR {
var $connection ;
var $sftp ;
var $pwd = '';
function connect( $host, $port = 22 ) {
$this->connection = @ssh2_connect( $host, $port ) ;
if( ! $this->connection ) {
return $this->raiseError( "Could not connect to $host on port $port." ) ;
}
}
function login( $username, $password ) {
$auth_methods = ssh2_auth_none($this->connection, $username);
if (!in_array('password', $auth_methods)) {
return $this->raiseError( "The SSH Server does not support password based authentication" );
}
if( !@ssh2_auth_password( $this->connection, $username, $password ) ) {
return $this->raiseError( "Could not authenticate with username $username " . "(using a password)." ) ;
}
$this->sftp = @ssh2_sftp( $this->connection ) ;
if( ! $this->sftp ) {
return $this->raiseError( "Could not initialize SFTP subsystem." ) ;
}
}
function put( $local_file, $remote_file ) {
$sftp = $this->sftp ;
$stream = @fopen( "ssh2.sftp://$sftp$remote_file", 'w' ) ;
if( ! $stream ) {
return $this->raiseError( "Could not open file: $remote_file" ) ;
}
$data_to_send = @file_get_contents( $local_file ) ;
if( $data_to_send === false ) {
return $this->raiseError( "Could not open local file: $local_file." ) ;
}
if( @fwrite( $stream, $data_to_send ) === false ) {
return $this->raiseError( "Could not send data from file: $local_file." ) ;
}
@fclose( $stream ) ;
}
/**
* returns the current working dir
*
* @return string
*/
function pwd() {
return $this->pwd;
}
function is_readable($file) {
$sftp = $this->sftp ;
$pwd = $this->pwd();
$file =$file['name'];
return is_readable("ssh2.sftp://$sftp$pwd/$file");
}
/**
* Returns the directory contents of the directory specified by $remote_file
*
* @param string $remote_file
* @return array
*/
function ls( $remote_file ) {
$sftp = $this->sftp ;
if( empty($remote_file) || $remote_file == '.') {
$remote_file = '/';
}
$this->pwd = $remote_file;
$dir = "ssh2.sftp://$sftp$remote_file" ;
$tempArray = array() ;
$handle = @opendir( $dir ) ;
if( !$handle) return $tempArray;
// List all the files
while( false !== ($file = readdir( $handle )) ) {
if( substr( "$file", 0, 1 ) != "." ) {
if( is_dir( $file ) ) {
// $tempArray[$file] = $this->ls("$dir/$file");
} else {
$info = stat($dir.'/'.$file);
$tempArray[] = array_merge( $info,
array('name' => $file,
'is_dir' => (string)is_dir($dir.'/'.$file))
) ;
}
}
}
closedir( $handle ) ;
return $tempArray ;
}
function file_get_contents($remote_file) {
$sftp = $this->sftp ;
return file_get_contents("ssh2.sftp://$sftp".str_replace('\\','/',$remote_file));
}
function file_put_contents($remote_file, $data) {
$sftp = $this->sftp ;
return file_put_contents("ssh2.sftp://$sftp".str_replace('\\','/',$remote_file), $data);
}
function get( $remote_file, $local_file ) {
$sftp = $this->sftp ;
$stream = @fopen( "ssh2.sftp://$sftp$remote_file", 'rb' ) ;
if( !is_resource($stream) ) {
return $this->raiseError( "Could not open file: $remote_file" ) ;
}
stream_set_blocking($stream, FALSE );
stream_set_timeout($stream, 10);
$info = stream_get_meta_data($stream);
while (!feof($stream) && !$info['timed_out'] ) {
$content = fread($stream, 4096);
if( empty( $content )) break;
file_put_contents( $local_file, $content, FILE_APPEND);
$info = stream_get_meta_data($stream);
}
@fclose( $stream ) ;
}
function fget($remote_file, $local_file ) {
return $this->get($remote_file, $local_file) ;
}
function rm( $remote_file ) {
$sftp = $this->sftp ;
unlink( "ssh2.sftp://$sftp$remote_file" ) ;
}
function mkdir($dir, $recursive=false) {
$sftp = $this->sftp ;
mkdir( "ssh2.sftp://$sftp$dir" ) ;
}
function rename( $from_filename, $to_filename ) {
$sftp = $this->sftp ;
rename( "ssh2.sftp://$sftp$from_filename", "ssh2.sftp://$sftp$to_filename" ) ;
}
function size($remote_file) {
$sftp = $this->sftp ;
$info = stat( "ssh2.sftp://$sftp$remote_file" ) ;
if( $info ) {
return $info[7]; // this array index holds the size
}
return 0;
}
function chmod($file, $mode) {
ssh2_exec ( $this->connection, 'chmod '.(int)$mode.' ' . $file );
}
function chmodRecursive($file, $mode) {
ssh2_exec ( $this->connection, 'chmod -R '.(int)$mode.' ' . $file );
}
function cd($dir) { }
function disconnect() {}
}