Primeros pasos sistema backup

ci4/app/Controllers/Sistema/Backups.php

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+<?php
+
+namespace App\Controllers\Sistema;
+
+use App\Controllers\BaseController;
+use phpseclib3\Net\SFTP;
+
+class Backups extends BaseController
+{
+    public function index()
+    {
+        helper('filesystem');
+        // Muestra la vista con la lista de backups
+        $files = directory_map(WRITEPATH . 'backups/', 1);
+        return view('themes/vuexy/form/backups/backupList', ['files' => $files]);
+    }
+
+    public function create()
+    {
+        helper('filesystem');
+
+        $filename = 'backup_' . date('Ymd_His') . '.sql';
+        $path = WRITEPATH . 'backups/' . $filename;
+
+        $dbConfig = config('Database')->default;
+
+        $host = $dbConfig['hostname'];
+        $username = $dbConfig['username'];
+        $password = $dbConfig['password'];
+        $database = $dbConfig['database'];
+
+        $command = "mysqldump -h {$host} -u{$username} -p'{$password}' {$database} > {$path}";
+
+        system($command, $retval);
+
+        if ($retval !== 0) {
+            throw new \RuntimeException("Error al crear el backup.");
+        }
+
+        // Enviar a SFTP
+        $this->sendToSFTP($path, $filename);
+
+        return redirect()->to(route_to('backupsList'))->with('message', 'Backup creado y enviado.');
+    }
+
+    public function restore($file)
+    {
+        $path = WRITEPATH . 'backups/' . $file;
+        if (!file_exists($path)) {
+            throw new \CodeIgniter\Exceptions\PageNotFoundException("Backup no encontrado.");
+        }
+
+        $db = \Config\Database::connect();
+        $sql = file_get_contents($path);
+        $db->query('SET FOREIGN_KEY_CHECKS=0;');
+        $db->query($sql);
+        $db->query('SET FOREIGN_KEY_CHECKS=1;');
+
+        return redirect()->to('/backups')->with('message', 'Backup restaurado.');
+    }
+
+    private function sendToSFTP($localPath, $remoteFilename)
+    {
+
+        $sftpHost = 'sftp.hidrive.ionos.com';
+        $sftpUser = 'erp2019';
+        $sftpPass = 'Z2CjX7kd2h';
+        $remotePath = '/users/erp2019/backups_erp/' . $remoteFilename;
+
+        $sftp = new SFTP($sftpHost);
+
+        if (!$sftp->login($sftpUser, $sftpPass)) {
+            throw new \RuntimeException('Error de autenticación SFTP');
+        }
+
+        $fileContents = file_get_contents($localPath);
+
+        if (!$sftp->put($remotePath, $fileContents)) {
+            throw new \RuntimeException("No se pudo subir el backup al servidor SFTP.");
+        }
+        
+    }
+}