/**
  * @throws \Touki\FTP\Exception\ConnectionEstablishedException
  * @throws \Touki\FTP\Exception\ConnectionException
  */
 private function initializeFtp()
 {
     $connection = new Connection($this->host, $this->user, $this->pass, 21);
     $connection->open();
     /**
      * The wrapper is a simple class which wraps the base PHP ftp_* functions
      * It needs a Connection instance to get the related stream
      */
     $wrapper = new FTPWrapper($connection);
     $wrapper->pasv(TRUE);
     /**
      * This factory creates Permissions models from a given permission string (rw-)
      */
     $permFactory = new PermissionsFactory();
     /**
      * This factory creates Filesystem models from a given string, ex:
      *     drwxr-x---   3 vincent  vincent      4096 Jul 12 12:16 public_ftp
      *
      * It needs the PermissionsFactory so as to instanciate the given permissions in
      * its model
      */
     $fsFactory = new FilesystemFactory($permFactory);
     /**
      * If your server runs on WINDOWS, you can use a Windows filesystem factory instead
      */
     // $fsFactory = new WindowsFilesystemFactory;
     /**
      * This manager focuses on operations on remote files and directories
      * It needs the FTPWrapper so as to do operations on the serveri
      * It needs the FilesystemFfactory so as to create models
      */
     $manager = new FTPFilesystemManager($wrapper, $fsFactory);
     /**
      * This is the downloader voter. It loads multiple DownloaderVotable class and
      * checks which one is needed on given options
      */
     $dlVoter = new DownloaderVoter();
     /**
      * Loads up default FTP Downloaders
      * It needs the FTPWrapper to be able to share them with the downloaders
      */
     $dlVoter->addDefaultFTPDownloaders($wrapper);
     /**
      * This is the uploader voter. It loads multiple UploaderVotable class and
      * checks which one is needed on given options
      */
     $ulVoter = new UploaderVoter();
     /**
      * Loads up default FTP Uploaders
      * It needs the FTPWrapper to be able to share them with the uploaders
      */
     $ulVoter->addDefaultFTPUploaders($wrapper);
     /**
      * This is the creator voter. It loads multiple CreatorVotable class and
      * checks which one is needed on the given options
      */
     $crVoter = new CreatorVoter();
     /**
      * Loads up the default FTP creators.
      * It needs the FTPWrapper and the FTPFilesystemManager to be able to share
      * them whith the creators
      */
     $crVoter->addDefaultFTPCreators($wrapper, $manager);
     /**
      * This is the deleter voter. It loads multiple DeleterVotable classes and
      * checks which one is needed on the given options
      */
     $deVoter = new DeleterVoter();
     /**
      * Loads up the default FTP deleters.
      * It needs the FTPWrapper and the FTPFilesystemManager to be able to share
      * them with the deleters
      */
     $deVoter->addDefaultFTPDeleters($wrapper, $manager);
     /**
      * Finally creates the main FTP
      * It needs the manager to do operations on files
      * It needs the download voter to pick-up the right downloader on ->download
      * It needs the upload voter to pick-up the right uploader on ->upload
      * It needs the creator voter to pick-up the right creator on ->create
      * It needs the deleter voter to pick-up the right deleter on ->delete
      */
     $this->ftp = new FTP($manager, $dlVoter, $ulVoter, $crVoter, $deVoter);
 }
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/**
 * make sure backup file is local, download it and make it local if necessary
 */
function backup_restore_locate_file($id, $path)
{
    global $amp_conf;
    $path = trim($path, '/');
    $path = str_replace(array('..', ':'), '', trim($path, '/'));
    $path = escapeshellcmd($path);
    $s = backup_get_server($id);
    if (!$s) {
        return array('error_msg' => _('Backup Server not found!'));
    }
    //dest is where we gona put backup files pulled infrom other servers
    $dest = $amp_conf['ASTSPOOLDIR'] . '/tmp/' . 'backuptmp-s' . $id . '-' . time() . '-' . basename($path);
    switch ($s['type']) {
        case 'local':
            $s['path'] = backup__($s['path']);
            $path = $s['path'] . '/' . $path;
            break;
        case 'ftp':
            //subsitute variables if nesesary
            $s['host'] = backup__($s['host']);
            $s['port'] = backup__($s['port']);
            $s['user'] = backup__($s['user']);
            $s['password'] = backup__($s['password']);
            $s['path'] = backup__($s['path']);
            $path = ltrim($path, '/');
            $connection = new Connection($s['host'], $s['user'], $s['password'], $s['port'], 90, $s['transfer'] == 'passive');
            try {
                $connection->open();
            } catch (\Exception $e) {
                $this->b['error'] = $e->getMessage();
                backup_log($this->b['error']);
                return;
            }
            $wrapper = new FTPWrapper($connection);
            $permFactory = new PermissionsFactory();
            $ftptype = $wrapper->systype();
            if (strtolower($ftptype) == "unix") {
                $fsFactory = new FilesystemFactory($permFactory);
            } else {
                $fsFactory = new WindowsFilesystemFactory();
            }
            $manager = new FTPFilesystemManager($wrapper, $fsFactory);
            $dlVoter = new DownloaderVoter();
            $dlVoter->addDefaultFTPDownloaders($wrapper);
            $ulVoter = new UploaderVoter();
            $ulVoter->addDefaultFTPUploaders($wrapper);
            $crVoter = new CreatorVoter();
            $crVoter->addDefaultFTPCreators($wrapper, $manager);
            $deVoter = new DeleterVoter();
            $deVoter->addDefaultFTPDeleters($wrapper, $manager);
            $ftp = new FTP($manager, $dlVoter, $ulVoter, $crVoter, $deVoter);
            if (!$ftp) {
                $this->b['error'] = _("Error creating the FTP object");
            }
            $ftpdirs = $ftp->findFilesystems(new \Touki\FTP\Model\Directory($s['path']));
            $file = null;
            foreach ($ftpdirs as $thisdir) {
                if ($ftp->fileExists(new \Touki\FTP\Model\File($thisdir->getRealPath() . '/' . $path))) {
                    $file = $ftp->findFileByName($thisdir->getRealPath() . '/' . $path);
                }
            }
            try {
                $options = array(FTP::NON_BLOCKING => false, FTP::TRANSFER_MODE => FTP_BINARY);
                $ftp->download($dest, $file, $options);
                $path = $dest;
            } catch (\Exception $e) {
                return array('error_msg' => _('Failed to retrieve file from server!'));
            }
            break;
        case 'ssh':
            $s['path'] = backup__($s['path']);
            $s['user'] = backup__($s['user']);
            $s['host'] = backup__($s['host']);
            $cmd[] = fpbx_which('scp');
            $cmd[] = '-o StrictHostKeyChecking=no -i';
            $cmd[] = $s['key'];
            $cmd[] = '-P ' . $s['port'];
            $cmd[] = $s['user'] . '\\@' . $s['host'] . ':' . $s['path'] . '/' . $path;
            $cmd[] = $dest;
            exec(implode(' ', $cmd), $foo, $ret);
            unset($cmd);
            if ($ret === 0) {
                $path = $dest;
            } else {
                return array('error_msg' => _('Failed to retrieve file from server!'));
            }
            break;
        case 'awss3':
            $s['bucket'] = backup__($s['bucket']);
            $s['awsaccesskey'] = backup__($s['awsaccesskey']);
            $s['awssecret'] = backup__($s['awssecret']);
            $awss3 = new S3($s['awsaccesskey'], $s['awssecret']);
            dbug('S3 Path: ' . $path);
            dbug('S3 Dest: ' . $dest);
            if ($awss3->getObject($s['bucket'], $path, $dest) !== false) {
                $path = $dest;
            } else {
                return array('error_msg' => _('Failed to retrieve file from server!'));
            }
            break;
    }
    if (file_exists($path)) {
        return $path;
    } else {
        return array('error_msg' => _('File not found! ' . $path));
    }
}