114 lines
2.7 KiB
PHP
114 lines
2.7 KiB
PHP
<?php
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namespace Shikiryu\Backup\Backup;
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use Exception;
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use phpseclib\Crypt\RSA;
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use phpseclib\Net\SFTP as LibSFTP;
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use phpseclib\Net\SSH2;
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class SFTP extends BackupAbstract
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{
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use IsDistantTrait;
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/**
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* @var LibSFTP
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*/
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private $connection;
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/** @var string */
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protected $host;
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/** @var int */
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protected $port = 22;
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/** @var string */
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protected $login;
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/** @var string */
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protected $password;
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/** @var string */
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protected $key;
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public function __construct($config = [])
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{
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if (!isset($config['files'])) {
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throw new Exception('Files needs a "files" configuration.');
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}
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$filesToBackup = $config['files'];
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if (!empty($filesToBackup) && is_array($filesToBackup)) {
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$names = array_map('basename', $filesToBackup);
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$this->files_to_backup = array_combine($filesToBackup, $names);
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}
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parent::__construct($config);
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}
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/**
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* @inheritDoc
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*/
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protected function preBuild()
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{
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// TODO: Implement preBuild() method.
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}
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/**
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* @inheritDoc
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*/
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protected function postBuild()
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{
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// TODO: Implement postBuild() method.
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}
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/**
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* @inheritDoc
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*/
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protected function build()
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{
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// TODO: Implement build() method.
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}
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/**
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* @inheritDoc
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* @throws Exception
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*/
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public function isValid()
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{
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if (empty($this->password) && empty($this->key)) {
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return false;
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}
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define('NET_SSH2_LOGGING', SSH2::LOG_COMPLEX);
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$this->connection = new LibSFTP($this->host, $this->port);
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if (!empty($this->key)) {
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$this->password = new RSA();
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$this->password->loadKey(file_get_contents($this->key));
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}
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if (!$this->connection->login($this->login, $this->password)) {
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throw new Exception(sprintf('I can\'t connect to the SFTP %s', $this->host));
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}
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$this->connection->enableQuietMode();
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$this->connection->exec('whoami');
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return $this->connection->getStdError() === '' && $this->connection->read() !== '';
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}
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/**
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* @return Files
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*/
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public function retrieve()
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{
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$tmp_files = [];
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foreach ($this->files_to_backup as $path => $name) {
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$tmp_file = TEMP_DIR.$name;
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$tmp_files[] = $tmp_file;
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$this->connection->get($path, $tmp_file);
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}
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unset($tmp_file);
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try {
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$tmp_backup = new Files(['files' => $tmp_files]);
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unset($tmp_files);
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} catch (Exception $e) {
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echo $e->getMessage();
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}
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return $tmp_backup;
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}
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}
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