SFTP transport added

app/code/Transport/SFTP.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace Shikiryu\Backup\Transport;
+
+use phpseclib\Net\SFTP as LibSFTP;
+
+class Sftp extends TransportAbstract
+{
+
+    protected $host;
+    protected $port = 22;
+    protected $login;
+    protected $password;
+    protected $folder;
+
+    private $connection;
+
+    /**
+     * @param \Shikiryu\Backup\Backup\BackupAbstract $backup
+     * @param array $config
+     * @throws \Exception
+     */
+    public function __construct($backup, $config)
+    {
+        parent::__construct($backup, $config);
+
+        $this->connection = new LibSFTP($this->host, $this->port);
+        if (!$this->connection->login($this->login, $this->password)) {
+            throw new \Exception(sprintf('I can\'t connect to the FTP %s', $this->host));
+        }
+    }
+
+    /**
+     * @return bool
+     * @throws \Exception
+     */
+    public function send()
+    {
+        $sent = true;
+        $files = $this->backup->getFilesToBackup();
+        if (!empty($files)){
+            foreach ($files as $file => $name) {
+                $upload = $this->connection->put($this->folder.'/'.$name, $file, LibSFTP::SOURCE_LOCAL_FILE);
+                if (!$upload) {
+                    $sent = false;
+                    echo 'SFTP upload manqu<71>e de '.$file.' vers '.$this->folder.$name;
+                }
+            }
+        }
+
+        $streams = $this->backup->getStreamsToBackup();
+        if (!empty($streams)){
+            foreach ($streams as $name => $stream) {
+                $upload = $this->connection->put($this->folder.'/'.$name, $stream);
+                if (!$upload) {
+                    echo 'SFTP upload manqu<71>e de '.$name.' vers '.$this->folder.$name;
+                    $sent = false;
+                }
+            }
+        }
+
+        if (!$sent) {
+            throw new \Exception('At least an upload didnt work.');
+        }
+        return $sent;
+    }
+}