* @param roleSet The set of roles.
     */
    protected void processHeader(final HttpServletRequest request, final Set<String> roleSet) {

        final String parameter = request.getHeader(headerKey);
        if (logger.isDebugEnabled()) {
            logger.debug("{}:{}", headerKey, parameter);
        }
        if (StringUtil.isNotEmpty(parameter)) {

            options.setEncoding("utf-8");
            options.setDocEncoding("utf-8");
            options.setCharSet("utf-8");

            options.addBooleanOption("-allow-script-in-comments", true);
            options.setHeader("<link rel=\"stylesheet\" href=\"https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/stackoverflow-light.min.css\">" +

                    logger.debug("principal={}", principal);
                }
            } catch (final Exception e) {
                final String msg = "Failed to process Authorization Header: " + request.getHeader(Constants.AUTHZ_HEADER);
                if (logger.isDebugEnabled()) {
                    logger.debug(msg);
                }
                throw new SsoLoginException(e.getMessage() + " " + msg, e);
            }

        final String secure = fessConfig.getCookieSearchParameterSecure();
        if (StringUtil.isBlank(secure)) {
            final String forwardedProto = request.getHeader("X-Forwarded-Proto");
            if ("https".equalsIgnoreCase(forwardedProto)) {
                return true;
            }
            return request.isSecure();
        }

      MockResponse
        .Builder()
        .clearHeaders()
        .addHeader("Cookie: s=square")
        .addHeader("Cookie: a=android")
        .addHeader("Cookies: delicious")
    builder.setHeader("cookie", "r=robot")
    assertThat(headersToList(builder)).containsExactly("Cookies: delicious", "cookie: r=robot")
  }

  @Test
  fun mockResponseSetHeaders() {
    val builder =
      MockResponse

    request: RecordedRequest,
    response: MockResponse,
  ) {
    val key = request.headers["Sec-WebSocket-Key"]
    val webSocketResponse =
      response
        .newBuilder()
        .setHeader("Sec-WebSocket-Accept", WebSocketProtocol.acceptHeader(key!!))
        .build()
    writeHttpResponse(socket, webSocketResponse)

    // Adapt the request and response into our Request and Response domain model.

     *
     * @param request the HTTP servlet request
     * @return the client IP address
     */
    public String getClientIp(final HttpServletRequest request) {
        final String value = request.getHeader("x-forwarded-for");
        if (StringUtil.isNotBlank(value)) {
            return value;
        }
        return request.getRemoteAddr();
    }

    /**

  }

  @Test
  fun multipleDnsLookupsForSingleCall() {
    server.enqueue(
      MockResponse
        .Builder()
        .code(301)
        .setHeader("Location", "http://www.fakeurl:" + server.port)
        .build(),
    )
    server.enqueue(MockResponse())
    val dns = FakeDns()
    dns["fakeurl"] = client.dns.lookup(server.hostName)

    assertThat(request.requestLine).isEqualTo("GET /foo HTTP/2")
  }

  @Test
  fun head() {
    val mockResponse =
      MockResponse
        .Builder()
        .setHeader("Content-Length", 5)
        .status("HTTP/1.1 200")
        .build()
    server.enqueue(mockResponse)
    val call =
      client.newCall(
        Request
          .Builder()
          .head()

      // because of the retry. We just want to ensure the initial 408 isn't cached.
      expectedResponseCode = 200
      server.enqueue(
        MockResponse
          .Builder()
          .setHeader("Cache-Control", "no-store")
          .body("FGHIJ")
          .build(),
      )
    }
    server.start()
    val request =
      Request
        .Builder()
        .url(server.url("/"))