errors.design_editor_disabled = This feature is disabled.
errors.not_found_on_file_system = Not found. Cause: {0}
errors.could_not_open_on_system = Could not open {0}.<br>Please check if the file is associated with an application.
errors.result_size_exceeded = No more results can be displayed.
errors.target_file_does_not_exist = The file {0} does not exist.
errors.failed_to_delete_file = Failed to delete the file {0}.

/*
 * Copyright (C) 2008 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

# OAuth2 simple avec Password et Bearer { #simple-oauth2-with-password-and-bearer }

Construisons maintenant à partir du chapitre précédent et ajoutons les éléments manquants pour avoir un flux de sécurité complet.

## Obtenir `username` et `password` { #get-the-username-and-password }

Nous allons utiliser les utilités de sécurité de **FastAPI** pour obtenir `username` et `password`.

もちろん、攻撃者はこれらを手作業では行わず、プログラムを書いて、1 秒間に数千〜数百万回のテストを行うでしょう。そして 1 回に 1 文字ずつ正しい文字を見つけていきます。

そうすることで、数分から数時間のうちに、攻撃者は私たちのアプリケーションの「助け」（応答にかかった時間）だけを利用して、正しいユーザー名とパスワードを推測できてしまいます。

#### `secrets.compare_digest()` で対策 { #fix-it-with-secrets-compare-digest }

しかし、私たちのコードでは実際に `secrets.compare_digest()` を使用しています。

要するに、`stanleyjobsox` と `stanleyjobson` を比較するのにかかる時間は、`johndoe` と `stanleyjobson` を比較するのにかかる時間と同じになります。パスワードでも同様です。

# Simples OAuth2 com senha e Bearer { #simple-oauth2-with-password-and-bearer }

Agora vamos construir a partir do capítulo anterior e adicionar as partes que faltam para ter um fluxo de segurança completo.

## Obtenha o `username` e a `password` { #get-the-username-and-password }

É utilizado o utils de segurança da **FastAPI** para obter o `username` e a `password`.

ow new Error('Invalid "target" attribute. Please use "readonly" instead of "disabled" attribute');if("cut"===n&&(e.hasAttribute("readonly")||e.hasAttribute("disabled")))throw new Error('Invalid "target" attribute. You can\'t cut text from elements with "readonly" or "disabled" attributes')}return t?f(t,{container:o}):e?"cut"===n?a(e):f(e,{container:o}):void 0};function p(t){return(p="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof...

/*
 * Copyright 2025 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

/*
 * Copyright (C) 2016 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

### Criando o `Settings` apenas uma vez com `lru_cache` { #creating-the-settings-only-once-with-lru-cache }

Ler um arquivo do disco normalmente é uma operação custosa (lenta), então você provavelmente vai querer fazer isso apenas uma vez e depois reutilizar o mesmo objeto de configurações, em vez de lê-lo a cada requisição.

    # Ref: JSON Schema Validation 2020-12: https://json-schema.org/draft/2020-12/json-schema-validation.html#name-vocabularies-for-semantic-c
    # Vocabularies for Semantic Content With "format"
    format: str | None = None
    # Ref: JSON Schema Validation 2020-12: https://json-schema.org/draft/2020-12/json-schema-validation.html#name-a-vocabulary-for-the-conten