logger.warn("Authentication Failure: {} - Reason: {}", errors.stream().collect(Collectors.joining(", ")),
                                        auth.getLastErrorReason());
                            } else {
                                logger.warn("Authentication Failure: {}", errors.stream().collect(Collectors.joining(", ")));
                            }

    * URL.
    * Email.
    * UUID.
    * ...and others.

All the validation is handled by the well-established and robust **Pydantic**.

### Security and authentication { #security-and-authentication }

Security and authentication integrated. Without any compromise with databases or data models.

All the security schemes defined in OpenAPI, including:

* HTTP Basic.

    SmbFileOutputStream out = null;
    boolean isStart = true;

    /**
     * Creates a DCERPC pipe handle with the specified URL and authentication
     * @param url the DCERPC URL specifying the endpoint
     * @param auth the NTLM authentication credentials
     * @throws UnknownHostException if the host cannot be resolved
     * @throws MalformedURLException if the URL is malformed

                assertThrows(SmbUnsupportedOperationException.class, () -> auth.createContext(tc, null, "server.example.com", init, false));
        assertTrue(ex.getMessage().contains("Server does not support kerberos authentication"));
        // No fallback attempted; config should not be queried in this path
        verify(tc, never()).getConfig();
        verifyNoInteractions(config);
    }

    @Test

    /**
     * The security provider for authentication and message protection
     */
    protected DcerpcSecurityProvider securityProvider = null;
    private static int call_id = 1;

    /**
     * Gets a DCERPC handle for the specified URL and authentication
     * @param url the DCERPC URL to connect to
     * @param auth the NTLM authentication credentials
     * @return a DCERPC handle for the connection

You can import it directly from `fastapi`:

```python
from fastapi import Depends
```

::: fastapi.Depends

## `Security()`

For many scenarios, you can handle security (authorization, authentication, etc.) with dependencies, using `Depends()`.

But when you want to also declare OAuth2 scopes, you can use `Security()` instead of `Depends()`.

You can import `Security()` directly from `fastapi`:

```python

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.entity;

import java.io.Serializable;

/**
 * Interface representing a Fess user with authentication and authorization information.
 * Provides access to user name, roles, groups, and permissions.
 */
public interface FessUser extends Serializable {

    /**
     * Gets the user's display name.

        }

        @Test
        @DisplayName("Should handle authentication failure during logon")
        void testLogonAuthenticationFailure() throws CIFSException {
            // Given
            doThrow(new CIFSException("Authentication failed")).when(transportPool).logon(context, address);

            // When & Then

     * <p>
     * See also the <code>jcifs.smb1.smb1.client.logonShare</code> property.
     *
     * @param dc the domain controller to authenticate against
     * @param auth the authentication credentials
     * @throws SmbException if authentication fails or an SMB error occurs
     */
    public static void logon(final UniAddress dc, final NtlmPasswordAuthentication auth) throws SmbException {
        logon(dc, 0, auth);
    }

)

var (
	errSFTPPublicKeyBadFormat = errors.New("the public key provided could not be parsed")
	errSFTPUserHasNoPolicies  = errors.New("no policies present on this account")
	errSFTPLDAPNotEnabled     = errors.New("ldap authentication is not enabled")
)

// if the sftp parameter --trusted-user-ca-key is set, then
// the final form of the key file will be set as this variable.
var globalSFTPTrustedCAPubkey ssh.PublicKey