}

	if len(stmt.Joins) > 0 {
		newStmt.Joins = make([]join, len(stmt.Joins))
		copy(newStmt.Joins, stmt.Joins)
	}

	if len(stmt.scopes) > 0 {
		newStmt.scopes = make([]func(*DB) *DB, len(stmt.scopes))
		copy(newStmt.scopes, stmt.scopes)
	}

	stmt.Settings.Range(func(k, v interface{}) bool {
		newStmt.Settings.Store(k, v)
		return true
	})

	return newStmt
}

```

::: fastapi.Depends

## `Security()`

For many scenarios, you can handle security (authorization, authentication, etc.) with dependencies, using `Depends()`.

But when you want to also declare OAuth2 scopes, you can use `Security()` instead of `Depends()`.

You can import `Security()` directly from `fastapi`:

```python
from fastapi import Security
```

<img src="/img/tutorial/security/image10.png">

/// note

Notice the header `Authorization`, with a value that starts with `Bearer `.

///

## Advanced usage with `scopes` { #advanced-usage-with-scopes }

OAuth2 has the notion of "scopes".

You can use them to add a specific set of permissions to a JWT token.

- **HTTP/HTTPS**: Full web crawling support with cookies, authentication, redirects
- **File System**: Local and network file system access
- **FTP**: FTP server crawling with authentication
- **SMB/CIFS**: Windows network shares
- **Storage**: Cloud storage systems (MinIO, S3-compatible)

### Content Formats

#### Office Documents
- Microsoft Office (Word, Excel, PowerPoint)
- OpenOffice/LibreOffice documents
- RTF, WordPerfect

В экземпляре зависимого класса `OAuth2PasswordRequestForm` атрибут `scope`, состоящий из одной длинной строки, разделенной пробелами, заменен на атрибут `scopes`, состоящий из списка отдельных строк, каждая из которых соответствует определенному уровню доступа.

В данном примере мы не используем `scopes`, но если вам это необходимо, то такая функциональность имеется.
///

Die Instanz der Klassenabhängigkeit `OAuth2PasswordRequestForm` verfügt, statt eines Attributs `scope` mit dem durch Leerzeichen getrennten langen String, über das Attribut `scopes` mit einer tatsächlichen Liste von Strings, einem für jeden gesendeten Scope.

In diesem Beispiel verwenden wir keine `scopes`, aber die Funktionalität ist vorhanden, wenn Sie sie benötigen.

///

/// tip | Consejo

La instance de la clase de dependencia `OAuth2PasswordRequestForm` no tendrá un atributo `scope` con el string largo separado por espacios, en su lugar, tendrá un atributo `scopes` con la lista real de strings para cada scope enviado.

No estamos usando `scopes` en este ejemplo, pero la funcionalidad está ahí si la necesitas.

///

Ahora, obtén los datos del usuario desde la base de datos (falsa), usando el `username` del campo del form.

/**
 * Meta-annotation that marks other annotations as scope annotations.
 * <p>
 * Scopes define the lifecycle and visibility of objects in the dependency injection
 * system. Custom scope annotations should be annotated with {@code @Scope}.
 * <p>
 * Built-in scopes include:
 * <ul>
 *   <li>{@link Singleton} - One instance per container</li>

    this.port = port;
  }

  /** See https://api.slack.com/docs/oauth. */
  public HttpUrl authorizeUrl(String scopes, HttpUrl redirectUrl, ByteString state, String team) {
    HttpUrl.Builder builder = baseUrl.newBuilder("/oauth/authorize")
        .addQueryParameter("client_id", clientId)
        .addQueryParameter("scope", scopes)
        .addQueryParameter("redirect_uri", redirectUrl.toString())
        .addQueryParameter("state", state.base64());

 * with a specific path prefix. When a path is provided, it iterates through the stored
 * authentications to find the one whose path prefix matches the beginning of the given path.
 * This allows for different SMB shares to use different authentication credentials.</p>
 */
public class SmbAuthenticationHolder {
    private static final Logger logger = LogManager.getLogger(SmbAuthenticationHolder.class);