}
            final int domainLength = domain != null ? domain.length : 0;
            final String userName = getUser();
            byte[] user = null;
            if (userName != null && userName.length() != 0) {
                user = unicode ? userName.getBytes(UNI_ENCODING) : userName.toUpperCase().getBytes(oem);
            }
            final int userLength = user != null ? user.length : 0;

    @Resource
    private UserService userService;
    @Resource
    private RoleService roleService;
    @Resource
    private GroupService groupService;
    @Resource
    private UserPager userPager;

    // ===================================================================================
    //                                                                               Hook

                },
                "User": {
                    "title": "User",
                    "required": ["username", "email"],
                    "type": "object",
                    "properties": {
                        "username": {"title": "Username", "type": "string"},
                        "email": {"title": "Email", "type": "string"},
                    },
                },

	rootCAs    *x509.CertPool
	username   string
	password   string
}

// OperatorOption - functional options pattern style for OperatorDNS
type OperatorOption func(*OperatorDNS)

// Authentication - custom username and password for authenticating at the endpoint
func Authentication(username, password string) OperatorOption {
	return func(args *OperatorDNS) {
		args.username = username
		args.password = password
	}

        } catch (final Exception e) {
            logger.debug("Login failed for user: {}", username, e);
        }
        return OptionalEntity.empty();
    }

    /**
     * Authenticates a user with the specified username without password validation.
     *
     * @param username the username for authentication

    public void setUsername_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda) {
        setUsername_Terms("username", opLambda, null);
    }

    public void setUsername_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda, OperatorCall<BsWebAuthenticationCA> aggsLambda) {
        setUsername_Terms("username", opLambda, aggsLambda);
    }

app = FastAPI()

security = HTTPBasic()


@app.get("/users/me")
def read_current_user(credentials: HTTPBasicCredentials = Depends(security)):

为了解决这个问题，我们首先将 `username` 和 `password` 转换为使用 UTF-8 编码的 `bytes` 。

然后我们可以使用 `secrets.compare_digest()` 来确保 `credentials.username` 是 `"stanleyjobson"`，且 `credentials.password` 是`"swordfish"`。

{* ../../docs_src/security/tutorial007_an_py39.py hl[1,12:24] *}

这类似于：

```Python
if not (credentials.username == "stanleyjobson") or not (credentials.password == "swordfish"):

object Credentials {
  /** Returns an auth credential for the Basic scheme. */
  @JvmStatic @JvmOverloads
  fun basic(
    username: String,
    password: String,
    charset: Charset = ISO_8859_1,
  ): String {
    val usernameAndPassword = "$username:$password"
    val encoded = usernameAndPassword.encode(charset).base64()
    return "Basic $encoded"
  }

from fastapi.testclient import TestClient
from pydantic import BaseModel

app = FastAPI()

api_key = APIKeyQuery(name="key")


class User(BaseModel):
    username: str


def get_current_user(oauth_header: str = Security(api_key)):
    user = User(username=oauth_header)
    return user


@app.get("/users/me")
def read_current_user(current_user: User = Depends(get_current_user)):
    return current_user