import java.io.IOException
import okhttp3.Authenticator
import okhttp3.Credentials
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.Response
import okhttp3.Route

class Authenticate {
  private val client =
    OkHttpClient.Builder()
      .authenticator(
        object : Authenticator {
          @Throws(IOException::class)
          override fun authenticate(
            route: Route?,

import okhttp3.Request;
import okhttp3.Response;

public final class Authenticate {
  private final OkHttpClient client;

  public Authenticate() {
    client = new OkHttpClient.Builder()
        .authenticator((route, response) -> {
          if (response.request().header("Authorization") != null) {
            return null; // Give up, we've already attempted to authenticate.
          }

   */
  @Throws(IOException::class)
  fun authenticate(
    route: Route?,
    response: Response,
  ): Request?

  companion object {
    /** An authenticator that knows no credentials and makes no attempt to authenticate. */
    @JvmField
    val NONE: Authenticator = AuthenticatorNone()

    private class AuthenticatorNone : Authenticator {
      override fun authenticate(
        route: Route?,

    val response =
      Response.Builder()
        .request(request)
        .code(401)
        .header("WWW-Authenticate", "UnsupportedScheme realm=\"User Visible Realm\"")
        .protocol(HTTP_2)
        .message("Unauthorized")
        .build()

    val authRequest = authenticator.authenticate(null, response)
    assertNull(authRequest)
  }

    assert response.headers["WWW-Authenticate"] == 'Bearer scope="me"'


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


def test_verify_password():

    assert response.headers["WWW-Authenticate"] == 'Bearer scope="me"'


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


def test_verify_password():

@needs_py310
def test_no_token(client: TestClient):
    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


@needs_py310
def test_token(client: TestClient):
    access_token = get_access_token(scope="me", client=client)
    response = client.get(

@needs_py39
def test_no_token(client: TestClient):
    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


@needs_py39
def test_token(client: TestClient):
    access_token = get_access_token(scope="me", client=client)
    response = client.get(

        .add("WWW-Authenticate", "Basic realm=myrealm")
        .add("WWW-Authenticate", "Digest")
        .build()
    assertThat(headers.parseChallenges("WWW-Authenticate")).containsExactly(
      Challenge("Basic", mapOf("realm" to "myrealm")),
      Challenge("Digest", mapOf()),
    )
  }

  @Test fun multipleBasicAuthenticateHeaders() {
    val headers =
      Headers.Builder()

@needs_py310
def test_no_token(client: TestClient):
    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


@needs_py310
def test_token(client: TestClient):
    access_token = get_access_token(scope="me", client=client)
    response = client.get(