public int sflags2;
    public int smaxMpxCount;
    public int maxBufferSize;
    public int sessKey;
    public int scapabilities;
    public String oemDomainName;
    public int securityMode;
    public int security;
    public boolean encryptedPasswords;
    public boolean signaturesEnabled;
    public boolean signaturesRequired;
    public int maxNumberVcs;
    public int maxRawSize;
    public long serverTime;

from dataclasses import dataclass, field
from typing import Any, Callable, List, Optional, Sequence, Tuple

from fastapi._compat import ModelField
from fastapi.security.base import SecurityBase


@dataclass
class SecurityRequirement:
    security_scheme: SecurityBase
    scopes: Optional[Sequence[str]] = None


@dataclass
class Dependant:
    path_params: List[ModelField] = field(default_factory=list)

新しいアクセストークンを生成するユーティリティ関数を作成します。

```Python hl_lines="6  12-14  28-30  78-86"
{!../../docs_src/security/tutorial004.py!}
```

## 依存関係の更新

`get_current_user`を更新して、先ほどと同じトークンを受け取るようにしますが、今回はJWTトークンを使用します。

受け取ったトークンを復号して検証し、現在のユーザーを返します。

トークンが無効な場合は、すぐにHTTPエラーを返します。

```Python hl_lines="89-106"
{!../../docs_src/security/tutorial004.py!}
```

## `/token` パスオペレーションの更新

トークンの有効期限を表す`timedelta`を作成します。

* `breaking`: Breaking Changes
    * Existing code will break if they update the version without changing their code. This rarely happens, so this label is not frequently used.
* `security`: Security Fixes
    * This is for security fixes, like vulnerabilities. It would almost never be used.
* `feature`: Features
    * New features, adding support for things that didn't exist before.
* `bug`: Fixes

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.slack;

import java.io.Closeable;
import java.io.IOException;
import java.security.SecureRandom;
import java.util.LinkedHashMap;
import java.util.Map;
import okhttp3.HttpUrl;
import okhttp3.mockwebserver.Dispatcher;
import okhttp3.mockwebserver.MockResponse;
import okhttp3.mockwebserver.MockWebServer;

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.smb;


import java.nio.charset.StandardCharsets;
import java.security.GeneralSecurityException;
import java.security.MessageDigest;
import java.util.concurrent.atomic.AtomicInteger;

import javax.crypto.Cipher;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.util.Arrays;

The benefit of raising an exception over `return`ing a value will be more evident in the section about Dependencies and Security.

In this example, when the client requests an item by an ID that doesn't exist, raise an exception with a status code of `404`:

```Python hl_lines="11"
{!../../docs_src/handling_errors/tutorial001.py!}
```

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.tls;

import java.security.cert.X509Certificate;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

public class CertificatesJavaTest {
  @Test
  public void testRoundtrip() {

 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.http;


import java.security.Principal;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;


class NtlmHttpServletRequest extends HttpServletRequestWrapper {

    Principal principal;

			case '\t':
				dst.WriteByte('t')
			default:
				// This encodes bytes < 0x20 except for \t, \n and \r.
				// If escapeHTML is set, it also escapes <, >, and &
				// because they can lead to security holes when
				// user-controlled strings are rendered into JSON
				// and served to some browsers.
				dst.WriteString(`u00`)
				dst.WriteByte(hexTable[b>>4])
				dst.WriteByte(hexTable[b&0xF])
			}
			i++