/// info | Informação

Se você já sabe sobre ambientes virtuais, como criá-los e usá-los, talvez seja melhor pular esta seção. 🤓

///

/// tip | Dica

Um **ambiente virtual** é diferente de uma **variável de ambiente**.

Uma **variável de ambiente** é uma variável no sistema que pode ser usada por programas.

        const string& in = node_def.input(i);
        const auto& v =
            a_edges.insert({in, strings::StrCat(node_def.name(), ":", i)});
        ASSERT_TRUE(v.second) << "Duplicate edge " << in << " -> "
                              << strings::StrCat(node_def.name(), ":", i)
                              << ". fdef: " << fdef.DebugString();
      }
    }

# Settings and Environment Variables { #settings-and-environment-variables }

In many cases your application could need some external settings or configurations, for example secret keys, database credentials, credentials for email services, etc.

Most of these settings are variable (can change), like database URLs. And many could be sensitive, like secrets.

For this reason it's common to provide them in environment variables that are read by the application.

/// tip

   * comparator to look for it wherever it wants.
   *
   * Note that we do NOT touch the comparator returned by comparator(), which
   * should be identical to the one the user passed in. We touch only the
   * "secret" comparator used by the delegate implementation.
   */

  private static <K, V> SortedMap<K, V> newModifiableDelegate(Comparator<? super K> comparator) {
    return newTreeMap(nullAccepting(comparator));
  }

"oleh", "olehnya", "seorang", "seseorang", "pada", "padanya", "padahal", "paling", "sepanjang", "pantas", "sepantasnya", "sepantasnyalah", "para", "pasti", "pastilah", "per", "pernah", "pula", "pun", "merupakan", "rupanya", "serupa", "saat", "saatnya", "sesaat", "saja", "sajalah", "saling", "bersama", "sama", "sesama", "sambil", "sampai", "sana", "sangat", "sangatlah", "saya", "sayalah", "se", "sebab", "sebabnya", "sebuah", "tersebut", "tersebutlah", "sedang", "sedangkan", "sedikit", "sedikitnya", "segala",...

"oleh", "olehnya", "seorang", "seseorang", "pada", "padanya", "padahal", "paling", "sepanjang", "pantas", "sepantasnya", "sepantasnyalah", "para", "pasti", "pastilah", "per", "pernah", "pula", "pun", "merupakan", "rupanya", "serupa", "saat", "saatnya", "sesaat", "saja", "sajalah", "saling", "bersama", "sama", "sesama", "sambil", "sampai", "sana", "sangat", "sangatlah", "saya", "sayalah", "se", "sebab", "sebabnya", "sebuah", "tersebut", "tersebutlah", "sedang", "sedangkan", "sedikit", "sedikitnya", "segala",...

대화형 문서 열기: <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

### 인증하기

"Authorize" 버튼을 눌러봅시다.

자격 증명을 사용합니다.

유저명: `johndoe`

패스워드: `secret`

<img src="/img/tutorial/security/image04.png">

시스템에서 인증하면 다음과 같이 표시됩니다:

<img src="/img/tutorial/security/image05.png">

### 자신의 유저 데이터 가져오기

이제 `/users/me` 경로에 `GET` 작업을 진행합시다.

          func.hashString(input, UTF_8).toString());
    }
  }

  public void testNullPointers() {
    NullPointerTester tester =
        new NullPointerTester()
            .setDefault(byte[].class, "secret key".getBytes(UTF_8))
            .setDefault(HashCode.class, HashCode.fromLong(0));
    tester.testAllPublicStaticMethods(Hashing.class);
  }

  public void testSeedlessHashFunctionEquals() throws Exception {

### Autenticação

Clique no botão "Authorize".

Use as credenciais:

User: `johndoe`

Password: `secret`

<img src="/img/tutorial/security/image04.png">

Após autenticar no sistema, você verá assim:

<img src="/img/tutorial/security/image05.png">

### Obtenha seus próprios dados de usuário

            assertTrue(exception.getCause() instanceof UnsupportedEncodingException, "Cause should be UnsupportedEncodingException");
        }
    }

    @Nested
    @DisplayName("Secret Masking Tests")
    class SecretMaskingTests {

        @ParameterizedTest
        @DisplayName("maskSecretValue should mask SMB URLs containing credentials")