<?php
include_once('sftp.php');
class softsftp {
var $sftp_conn = false;
var $position;
var $remotefile;
var $readsize = 0;
var $sftp;
var $orig_path = '';
var $tmpsize = 0;
var $tpfile = 'php://memory';
var $writepos = 0;
var $wp = NULL; // Memory Write Pointer
var $mode;
function __construct(){
$this->softsftp();
}
function softsftp(){
$this->sftp = new sftp();
}
function __destruct(){
$this->position = 0;
$this->remotefile = '';
}
// Used to test a connection to the remote server
function connect($host, $port, $user, $pass = '', $pri = '', $passphrase = ''){ //cannot put this code inside constructor since we need to pass the URL, the constructor takes void(no) parameters.
//__construct is called only before stream_open() in older versions of PHP (< 5.6). In newer versions, it is called before all the stream functions.
if(!is_object($this->sftp)){
$this->sftp = new sftp();
}
//echo $host.' - '.$port.' - '.$user.' - '.$pass.' - '.$pri.' - '.$passphrase;
$this->sftp_conn = $this->sftp->connect($host, $port, $user, $pass, $pri, $passphrase);
//backuply_print($this->sftp->error);
return $this->sftp_conn;
}
// Just so that we can connect everywhere
function init($path, &$url = array()){
global $user;
//backuply_print($user);
if(!preg_match('/softsftp:\/\//i', $path)){
return false;
}
$url = parse_url($path);
// By default the port is 21
if(empty($url['port'])){
$url['port'] = 21;
}
if(empty($url['pass'])){
$sftpuser = $user['remote_backup_locs'][$url['user']]['ftp_user'];
$sftppri = $user['remote_backup_locs'][$url['user']]['private_key'];
$sftppassphrase = $user['remote_backup_locs'][$url['user']]['passphrase'];
if(empty($sftppri) && empty($sftppassphrase)){
return false;
}
}
//backuply_print($flags);
// Are we to connect
if(empty($this->sftp_conn)){
$this->connect($url['host'], $url['port'], rawurldecode((empty($url['pass']) ? $sftpuser : $url['user'])), rawurldecode($url['pass']), $sftppri, $sftppassphrase);
}
if(empty($this->sftp_conn)){
return false;
}
return $this->sftp_conn;
}
// For fopen
function stream_open($path, $mode){
if(!$init = $this->init($path, $url)){
return $init;
}
//echo 'IN OPEN : '.$this->sftp_conn.' - '.$path."\n";
//backuply_print($this->sftp->error);
//echo 'HERE';
//die();
$this->orig_path = $path;
$this->mode = $mode;
$this->remotefile = $url['path'];
$this->position = 0;
// Sets file size if its in read mode
if(strpos($this->mode, 'r') !== FALSE){
$this->readsize = filesize($this->orig_path);
if(empty($this->readsize)){
return false;
}
}
return $this->sftp_conn;
}
// AS of now not used
function stream_read($count){
if(!$this->sftp_conn){
return false;
}
// Get the readsize
if(empty($this->readsize)){
$this->readsize = filesize($this->orig_path);
}
$this->varname = $this->sftp->get($this->remotefile, false, $this->position, $count);
$ret = substr($this->varname, 0, $count);
if(empty($ret)){
return false;
}
$this->position = $this->position + $count;
return $ret;
}
function stream_write($data){
$strlen = strlen($data);
//echo 'IN WRITE : '.$strlen."\n";
//echo $this->remotefile.' - '.strlen($data);die();
if(!$this->sftp_conn){
return false;
}
$ret = $strlen;
if(!$this->sftp->backup_softput($this->remotefile, $data)){
$ret = false;
}
return $ret;
}
function stream_close(){
$ret = true;
//echo 'IN CLOSE : '.$this->position."\n";
if(preg_match('/w|a/is', $this->mode)){
// Are we already more than 4 MB ?
if($this->tmpsize > 0){
rewind($this->wp);
if(!$this->sftp->backup_softput($this->remotefile, $this->wp, $this->writepos)){
$ret = false;
}
$this->writepos += $this->tmpsize;
// Close the temp file and reset the variables
fclose($this->wp);
$this->wp = NULL;
$this->tmpsize = 0;
}
}
return $ret;
}
function stream_eof(){
return $this->position >= $this->readsize;
}
function stream_tell(){
return $this->position;
}
function dir_opendir($path, $options){
if(!$init = $this->init($path, $url)){
return $init;
}
$this->orig_path = $path;
$this->remotefile = $url['path'];
$this->filelist = $this->sftp->nlist($this->remotefile);
//backuply_print($this->filelist);
return true;
}
function dir_readdir(){
$key = key($this->filelist);
if(is_null($key)){
return false;
}
$val = $this->filelist[$key];
unset($this->filelist[$key]);
return pathinfo($val, PATHINFO_BASENAME);
}
function dir_closedir(){
// Do nothing
}
// Download a remote file to the local file
function download_file_loop($path, $localfile, $startpos = 0){
if(!$init = $this->init($path, $url)){
return $init;
}
$file_stats = $this->url_stat($path);
$this->filesize = $file_stats['size'];
//We are passing the file pointer because SFTP -> get() checks if it is a file or a pointer. If it is a file, it opens the file in 'wb' mode.
$fp = fopen($localfile, 'ab');
//Read 1MB in one iteration
while($startpos < $this->filesize){
if(time() + 5 >= $GLOBALS['end']){
break;
}
$this->sftp->get($url['path'], $fp, $startpos, 1048576);
// Set percentage
$percentage = (filesize($localfile) / $this->filesize) * 100;
backuply_status_log('<div class="backuply-upload-progress"><span class="backuply-upload-progress-bar" style="width:'.round($percentage).'%;"></span><span class="backuply-upload-size">'.round($percentage).'%</span></div>', 'downloading', 22);
$startpos += 1048576;
}
$GLOBALS['l_readbytes'] = filesize($localfile);
fclose($fp);
return true;
}
function mkdir($path, $mode, $options){
backuply_log('inside sftp mkdir function');
if(!$init = $this->init($path, $url)){
backuply_log('inside sftp mkdir : init');
return $init;
}
$ret = $this->sftp->mmkdir($url['path'], $mode);
backuply_log('inside sftp mkdir : mmkdir');
return $ret;
}
function rmdir($path, $options){
if(!$init = $this->init($path, $url)){
return $init;
}
$res = $this->sftp->rmdir($url['path']);
return $res;
}
function url_stat($path){
if(!$init = $this->init($path, $url)){
return $init;
}
$url['path'] = $this->cleanpath($url['path']);
if(empty($url['path'])){
$url['path'] = '/';
}
//backuply_print($url);die();
if($url['path'] == '/'){
$file = '.';
$dir = $url['path'];
}else{
$file = basename($url['path']);
$dir = dirname($url['path']);
}
$dir = $this->cleanpath($dir);
if(empty($dir)){
$dir = '/';
}
//echo $file.' - '.$dir." -- - - -\n";die();
$list = $this->sftp->rawlist($dir);
//backuply_print($list);
foreach($list as $k => $v){
$list[$k] = $this->sftp->_parselisting($v);
if($k != $file){
continue;
}
//backuply_print($list[$k]);
$stat = array('dev' => 0,
'ino' => 0,
'mode' => (isset($list[$k]['mode']) ? octdec($list[$k]['mode']) : 0),
'nlink' => 0,
'uid' => 0,
'gid' => 0,
'rdev' => 0,
'size' => $list[$k]['size'],
'atime' => $list[$k]['time'],
'mtime' => $list[$k]['time'],
'ctime' => $list[$k]['time'],
'blksize' => -1,
'blocks' => -1
);
return $stat + array_values($stat);
}
return false;
}
function unlink($path){
if(!$init = $this->init($path, $url)){
return $init;
}
$res = $this->sftp->delete($url['path']);
return $res;
}
function rename($from, $to){
if(!$init = $this->init($from, $url)){
return $init;
}
$url_from = parse_url($from);
$url_to = parse_url($to);
//echo 'Rename : '.$url_from['path'].' - '.$url_to['path']."\n";
return $this->sftp->rename($url_from['path'], $url_to['path']);
}
function chdir($dir){
return $this->sftp->chdir($dir);
}
function pwd(){
return $this->sftp->pwd();
}
function cleanpath($path){
$path = str_replace('\\\\', '/', $path);
$path = str_replace('\\', '/', $path);
$path = str_replace('//', '/', $path);
return rtrim($path, '/');
}
}