import org.lastaflute.web.login.credential.LoginCredential;

/**
 * SPNEGO authentication credential implementation.
 *
 * This class represents login credentials obtained through SPNEGO (Security Provider
 * Negotiation Protocol) authentication. It contains the username extracted from the
 * SPNEGO authentication process, typically from a Kerberos ticket.
 */
public class SpnegoCredential implements LoginCredential, FessCredential {

    streamId: Int,
    associatedStreamId: Int,
    headerBlock: List<Header>,
  ) {
    fail("")
  }

  override fun alternateService(
    streamId: Int,
    origin: String,
    protocol: ByteString,
    host: String,
    port: Int,
    maxAge: Long,
  ) {
    fail("")
  }

This is not a limitation of **FastAPI**, it's part of the HTTP protocol.

///

## Recap { #recap }

 *   override fun intercept(chain: Interceptor.Chain): Response {
 *     if (myConfig.isInvalid()) {
 *       return Response.Builder()
 *           .request(chain.request())
 *           .protocol(Protocol.HTTP_1_1)
 *           .code(400)
 *           .message("client config invalid")
 *           .body("client config invalid".toResponseBody(null))
 *           .build()
 *     }
 *

 * This class provides common functionality for all DCE/RPC message types in SMB1 protocol.
 */
public abstract class DcerpcMessage extends NdrObject implements DcerpcConstants {

    /**
     * Default constructor for DcerpcMessage.
     * Initializes the DCE/RPC message structure for SMB1 protocol.
     */
    protected DcerpcMessage() {
        // Default constructor
    }

    /**

            server = server.clone();

            request.addServer(server);
        }

        //  <proxies>
        //    <proxy>
        //      <active>true</active>
        //      <protocol>http</protocol>
        //      <host>proxy.somewhere.com</host>
        //      <port>8080</port>
        //      <username>proxyuser</username>
        //      <password>somepassword</password>

  public static final MediaType POSTSCRIPT = createConstant(APPLICATION_TYPE, "postscript");

  /**
   * <a href="http://tools.ietf.org/html/draft-rfernando-protocol-buffers-00">Protocol buffers</a>
   *
   * @since 15.0
   */
  public static final MediaType PROTOBUF = createConstant(APPLICATION_TYPE, "protobuf");

  /**

                    final String protocol = url.getProtocol();
                    int port = url.getPort();
                    if (port == -1) {
                        port = "https".equalsIgnoreCase(protocol) ? 443 : 80;
                    }
                    final PasswordAuthentication auth = Authenticator.requestPasswordAuthentication(null, port, protocol, "", authMethod);
                    if (auth == null) {

 * 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 org.codelibs.fess.test.net.protocol.xxx3;

import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;

public class Handler extends URLStreamHandler {

        // javascript: protocol should be blocked
        assertFalse(result.contains("javascript:"));
    }

    @Test
    public void test_render_xss_dataProtocol() {
        String malicious = "[Click me](data:text/html,<script>alert('XSS')</script>)";
        String result = markdownRenderer.render(malicious);
        // data: protocol should be blocked