verifyToken(() -> asIndexPage(form));
        final String username = form.username;
        final String password = form.password;
        form.clearSecurityInfo();
        try {
            final HtmlResponse loginRedirect = fessLoginAssist.loginRedirect(new LocalUserCredential(username, password), op -> {}, () -> {
                activityHelper.login(getUserBean());

	}

	const contextName = "istio-cni-context"
	const clusterName = "local"
	const userName = "istio-cni"
	kcfg := &api.Config{
		Kind:        "Config",
		APIVersion:  "v1",
		Preferences: api.Preferences{},
		Clusters: map[string]*api.Cluster{
			clusterName: cluster,
		},
		AuthInfos: map[string]*api.AuthInfo{
			userName: {
				Token: string(token),
			},
		},
		Contexts: map[string]*api.Context{

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"
  }

```Python
UserInDB(**user_dict)
```

就会生成如下结果：

```Python
UserInDB(
    username="john",
    password="secret",
    email="******@****.***",
    full_name=None,
)
```

或更精准，直接把可能会用到的内容与 `user_dict` 一起使用：

```Python
UserInDB(
    username = user_dict["username"],
    password = user_dict["password"],
    email = user_dict["email"],
    full_name = user_dict["full_name"],

                logger.debug("principal={}", principal);
            }

            final String[] username = principal.getName().split("@", 2);
            if (logger.isDebugEnabled()) {
                logger.debug("username: {}", Arrays.toString(username));
            }
            return new SpnegoCredential(username[0]);
        }).orElseGet(() -> null);

    }

     * than relying on the one from the system property.
     *
     * - Under Java 8, createTempDir() fails because it falls back to the bogus username from the
     * system property.
     */

    String save = System.getProperty("user.name");
    System.setProperty("user.name", "-this-is-definitely-not-the-username-we-are-running-as//?");
    try {

from pydantic import BaseModel, EmailStr

app = FastAPI()


class UserIn(BaseModel):
    username: str
    password: str
    email: EmailStr
    full_name: str | None = None


class UserOut(BaseModel):
    username: str
    email: EmailStr
    full_name: str | None = None


class UserInDB(BaseModel):
    username: str
    hashed_password: str
    email: EmailStr
    full_name: str | None = None

    public void delete(final User user) {
        ComponentUtil.getLdapManager().delete(user);
    }

    @Override
    public boolean changePassword(final String username, final String password) {
        final boolean changed = ComponentUtil.getLdapManager().changePassword(username, password);
        return !changed || ComponentUtil.getFessConfig().isLdapAdminSyncPassword();
    }

    @Override
    public User load(final User user) {

`secrets.compare_digest()` 需要仅包含 ASCII 字符（英语字符）的 `bytes` 或 `str`，这意味着它不适用于像`á`一样的字符，如 `Sebastián`。

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"`。

//// tab | Python 3.9+

```Python hl_lines="1  12-24"
{!> ../../docs_src/security/tutorial007_an_py39.py!}

     * than relying on the one from the system property.
     *
     * - Under Java 8, createTempDir() fails because it falls back to the bogus username from the
     * system property.
     */

    String save = System.getProperty("user.name");
    System.setProperty("user.name", "-this-is-definitely-not-the-username-we-are-running-as//?");
    try {