async def get_current_user(token: str = Depends(oauth2_scheme)):
    credentials_exception = HTTPException(
        status_code=status.HTTP_401_UNAUTHORIZED,
        detail="Could not validate credentials",
        headers={"WWW-Authenticate": "Bearer"},
    )
    try:
        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
        username = payload.get("sub")
        if username is None:
            raise credentials_exception

            } catch (final SmbAuthException sae) {
                response.setHeader("WWW-Authenticate", "NTLM");
                if (offerBasic) {
                    response.addHeader("WWW-Authenticate", "Basic realm=\"" + this.realm + "\"");
                }
                response.setHeader("Connection", "close");

        networkExplorer.doGet(request, response);

        verify(response).setStatus(HttpServletResponse.SC_UNAUTHORIZED);
        verify(response).setHeader("WWW-Authenticate", "NTLM");
        verify(response).flushBuffer();
    }

    /**
     * Test doGet with NTLM authentication for directory listing

public final class okhttp3/JavaNetAuthenticator : okhttp3/Authenticator {
	public fun <init> ()V
	public fun authenticate (Lokhttp3/Route;Lokhttp3/Response;)Lokhttp3/Request;
}

public final class okhttp3/JavaNetCookieJar : okhttp3/CookieJar {
	public fun <init> (Ljava/net/CookieHandler;)V
	public fun loadForRequest (Lokhttp3/HttpUrl;)Ljava/util/List;
	public fun saveFromResponse (Lokhttp3/HttpUrl;Ljava/util/List;)V

    else:
        authenticate_value = "Bearer"
    credentials_exception = HTTPException(
        status_code=status.HTTP_401_UNAUTHORIZED,
        detail="Could not validate credentials",
        headers={"WWW-Authenticate": authenticate_value},
    )
    try:
        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
        username: str = payload.get("sub")
        if username is None:

 * token68:
 *
 * ```
 * WWW-Authenticate: Digest foo=bar
 * WWW-Authenticate: Digest foo=
 * ```
 *
 * Similarly, the first line has one challenge and the second line has two challenges:
 *
 * ```
 * WWW-Authenticate: Digest ,foo=bar
 * WWW-Authenticate: Digest ,foo
 * ```
 */
fun Headers.parseChallenges(headerName: String): List<Challenge> {

        self.realm = realm
        self.auto_error = auto_error

    def make_authenticate_headers(self) -> dict[str, str]:
        if self.realm:
            return {"WWW-Authenticate": f'Basic realm="{self.realm}"'}
        return {"WWW-Authenticate": "Basic"}

    async def __call__(  # type: ignore
        self, request: Request
    ) -> HTTPBasicCredentials | None:
        authorization = request.headers.get("Authorization")

 *    certificate is not included in this chain.
 *  * The client's handshake certificates must include a set of trusted root certificates. They will
 *    be used to authenticate the server's certificate chain. Typically this is a set of well-known
 *    root certificates that is distributed with the HTTP client or its platform. It may be
 *    augmented by certificates private to an organization or service.

{* ../../docs_src/security/tutorial003_an_py310.py hl[58:66,69:74,94] *}

/// info

The additional header `WWW-Authenticate` with value `Bearer` we are returning here is also part of the spec.

Any HTTP (error) status code 401 "UNAUTHORIZED" is supposed to also return a `WWW-Authenticate` header.

def test_security_api_key_no_key():
    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "APIKey"


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(