from fastapi import FastAPI, Form
from pydantic import BaseModel

app = FastAPI()


class FormData(BaseModel):
    username: str
    password: str


@app.post("/login/")
async def login(data: FormData = Form()):

# OAuth2 con Password (y hashing), Bearer con tokens JWT { #oauth2-with-password-and-hashing-bearer-with-jwt-tokens }

Ahora que tenemos todo el flujo de seguridad, hagamos que la aplicación sea realmente segura, usando tokens <abbr title="JSON Web Tokens">JWT</abbr> y hashing de contraseñas seguras.

Este código es algo que puedes usar realmente en tu aplicación, guardar los hashes de las contraseñas en tu base de datos, etc.

			lookupRes, groupDistNames, err := globalIAMSys.LDAPConfig.Bind(username, password)
			if err != nil {
				return false, err
			}
			ldapPolicies, _ := globalIAMSys.PolicyDBGet(lookupRes.NormDN, groupDistNames...)
			return len(ldapPolicies) > 0, nil
		}
		return subtle.ConstantTimeCompare([]byte(sa.Credentials.SecretKey), []byte(password)) == 1, nil
	}

	ui, ok := globalIAMSys.GetUser(context.Background(), username)

from typing import Annotated

from fastapi import FastAPI, Form
from pydantic import BaseModel

app = FastAPI()


class FormData(BaseModel):
    username: str
    password: str


@app.post("/login/")
async def login(data: Annotated[FormData, Form()]):

     *            domain for NTLM fallback
     * @param username
     *            user for NTLM fallback
     * @param password
     *            password for NTLM fallback
     */
    public Kerb5Authenticator(Subject subject, String domain, String username, String password) {
        super(domain, username, password);
        this.canFallback = true;
        this.subject = subject;
    }

    /**

## 定义 `Form` 参数

创建表单（`Form`）参数的方式与 `Body` 和 `Query` 一样：

{* ../../docs_src/request_forms/tutorial001.py hl[7] *}

例如，OAuth2 规范的 "密码流" 模式规定要通过表单字段发送 `username` 和 `password`。

<abbr title="specification">该规范</abbr>要求字段必须命名为 `username` 和 `password`，并通过表单字段发送，不能用 JSON。

使用 `Form` 可以声明与 `Body` （及 `Query`、`Path`、`Cookie`）相同的元数据和验证。

/// info | 说明

`Form` 是直接继承自 `Body` 的类。

///

/// tip | 提示

                    } else {
                        // plain text
                        final String password = a.getPassword();
                        this.lmHash = new byte[(password.length() + 1) * 2];
                        this.ntHash = new byte[0];
                        writeString(password, this.lmHash, 0);
                    }
                }

            } else if (cred instanceof byte[]) {

from fastapi import FastAPI, Form
from pydantic import BaseModel

app = FastAPI()


class FormData(BaseModel):
    username: str
    password: str
    model_config = {"extra": "forbid"}


@app.post("/login/")
async def login(data: FormData = Form()):

* utilize (resources): использовать
* сontent: содержимое (or `контент`)
* raise exception: вызвать исключение (also possible to use `сгенерировать исключение` or `выбросить исключение`)
* password flow: password flow (clarify as `аутентификация по паролю` if needed)
* tutorial: руководство (or `учебник`)
* too long; didn't read: слишком длинно; не читал
* proxy with a stripped path prefix: прокси с функцией удаления префикса пути

to take advantage of sweet Kotlin features.

#### Credentials.basic()

The username and password parameters to `Credentials.basic()` are now non-null strings. In OkHttp
3.x, null would yield a username or password of "null".

#### HttpUrl.queryParameterValues()

The return type of `HttpUrl.queryParameterValues()` is `List<String?>`. Lists that may contain null