* Mas precisa de autenticação para aquele endpoint em específico.
		* Então, para autenticar com nossa API, ele manda um header de `Autorização` com o valor `Bearer` mais o token.
		* Se o token contém `foobar`, o conteúdo do header de `Autorização` será: `Bearer foobar`.

## **FastAPI**'s `OAuth2PasswordBearer`

**FastAPI** fornece várias ferramentas, em diferentes níveis de abstração, para implementar esses recursos de segurança.

     * </ul>
     * Example filter expression: <code>"h(5);s;e(org.foo:bar:1)</code> will cause: ranges are filtered for "top 5" (instead
     * full range), snapshots are banned if root project is not a snapshot, and if range for <code>org.foo:bar</code> is
     * being processed, version 1 is omitted.
     *
     * @since 4.0.0
     */
    @Config

 * Tests for the MessageDigestHashFunction.
 *
 * @author Kurt Alfred Kluever
 */
public class MessageDigestHashFunctionTest extends TestCase {
  private static final ImmutableSet<String> INPUTS = ImmutableSet.of("", "Z", "foobar");

  // From "How Provider Implementations Are Requested and Supplied" from
  // http://docs.oracle.com/javase/6/docs/technotes/guides/security/crypto/CryptoSpec.html

    * Поэтому для аутентификации в нашем API он посылает заголовок `Authorization` со значением `Bearer` плюс сам токен.
    * Если токен содержит `foobar`, то содержание заголовка `Authorization` будет таким: `Bearer foobar`.

## Класс `OAuth2PasswordBearer` в **FastAPI**

**FastAPI** предоставляет несколько средств на разных уровнях абстракции для реализации этих функций безопасности.

bulZmoo7e7HO1qecEzWKL10UYyEbG3UDPtw+NZc142ZYeEhXQ0dsstGAO5hf3hEl
kQyKGUTpDbKLuyYMFsoH73YLjBqNe+UEhPwE+FWpcky1Sp9RTx/oMLpiZaPR
-----END CERTIFICATE-----`,
		shouldFail: true,
	},
	{
		password: "foobar",
		privateKey: `-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-128-CBC,CC483BF11678C35F9F02A1AD85DAE285

nMDFd+Qxk1f+S7LwMitmMofNXYNbCY4L1QEqPOOx5wnjNF1wSxmEkL7+h8W4Y/vb

   * the sequence will be returned as a string with no changes to the content.
   *
   * <p>Examples:
   *
   * <pre>{@code
   * Ascii.truncate("foobar", 7, "..."); // returns "foobar"
   * Ascii.truncate("foobar", 5, "..."); // returns "fo..."
   * }</pre>
   *
   * <p><b>Note:</b> This method <i>may</i> work with certain non-ASCII text but is not safe for use

				" --annotations annotation=foobar --ports grpc=3550,http=8080 --serviceAccount test", " "),
			expectedException: false,
			expectedOutput:    customYAML,
		},
		{
			description: "valid case - create full workload group with shortnames",
			args: strings.Split("group create --name foo -n bar -l app=foo,bar=baz -p grpc=3550,http=8080"+
				" -a annotation=foobar --serviceAccount test", " "),

    * Um sich also bei unserer API zu authentifizieren, sendet es einen Header `Authorization` mit dem Wert `Bearer` plus dem Token.
    * Wenn der Token `foobar` enthielte, wäre der Inhalt des `Authorization`-Headers: `Bearer foobar`.

## **FastAPI**s `OAuth2PasswordBearer`

**FastAPI** bietet mehrere Tools auf unterschiedlichen Abstraktionsebenen zur Implementierung dieser Sicherheitsfunktionen.

- 前端临时将令牌存储在某个位置
- 用户点击前端，前往前端应用的其它部件
- 前端需要从 API 中提取更多数据：
    - 为指定的端点（Endpoint）进行身份验证
    - 因此，用 API 验证身份时，要发送值为 `Bearer` + 令牌的请求头 `Authorization`
    - 假如令牌为 `foobar`，`Authorization` 请求头就是： `Bearer foobar`

## **FastAPI** 的 `OAuth2PasswordBearer`

**FastAPI** 提供了不同抽象级别的安全工具。

本例使用 **OAuth2** 的 **Password** 流以及 **Bearer** 令牌（`Token`）。为此要使用 `OAuth2PasswordBearer` 类。

/// info | "说明"

        publicSuffix = publicSuffix.replace("\\*".toRegex(), "square")
      }
      assertThat(publicSuffixDatabase.getEffectiveTldPlusOne(publicSuffix)).isNull()
      val test = "foobar.$publicSuffix"
      assertThat(publicSuffixDatabase.getEffectiveTldPlusOne(test)).isEqualTo(test)
    }
  }

  @Test fun publicSuffixExceptions() {
    val buffer = Buffer()