@Override
 protected String doInBackground() throws Exception {
   publish("Starting...");
   IExtensionHelpers helpers = callbacks.getHelpers();
   publish(0);
   IHttpRequestResponse[] messages = callbacks.getProxyHistory();
   if (messages.length == 0) {
     publish(100);
   } else {
     firstPass(helpers, messages);
     parameterFormatAnalysis();
     // secondPass(helpers);  This is just too darn slow as it is now... need to rethink it.
   }
   return "";
 }
 @Override
 protected void done() {
   super.done();
   try {
     this.get();
     listener.done();
   } catch (InterruptedException e) {
     listener.setStatus("Interrupted Exception: " + e.getMessage());
     e.printStackTrace(new PrintStream(callbacks.getStderr()));
   } catch (ExecutionException e) {
     listener.setStatus("Execution Exception: " + e.getMessage());
     e.printStackTrace(new PrintStream(callbacks.getStderr()));
   } catch (Throwable e) {
     listener.setStatus(e.getMessage());
     e.printStackTrace(new PrintStream(callbacks.getStderr()));
   }
 }
  /**
   * Analyze and categorize each of the parameters in scope.
   *
   * @param helpers The standard burp ExtensionHelpers object.
   * @param messages The set of request messages to be processed.
   */
  private void firstPass(IExtensionHelpers helpers, IHttpRequestResponse[] messages) {
    publish("Examining parameters...");
    for (int i = 0; i < messages.length; i++) {
      publish(100 * i / messages.length);
      messages[i].getHttpService();
      //  Analyze response for cookies
      if (messages[i].getResponse() != null) {
        IResponseInfo responseInfo = helpers.analyzeResponse(messages[i].getResponse());
        List<String> headers = responseInfo.getHeaders();
        for (String header : headers) {
          if (startsWithIgnoreCase(header, "set-cookie:")) {
            processCookieHeader(header);
          }
        }
      }
      IRequestInfo requestInfo = helpers.analyzeRequest(messages[i]);
      if (callbacks.isInScope(requestInfo.getUrl())) {
        byte[] responseBytes = messages[i].getResponse();
        String responseString = "";
        if (responseBytes != null) {
          responseString = helpers.bytesToString(responseBytes);
          inScopeMessagesWithResponses.add(messages[i]);
        }

        List<IParameter> params = requestInfo.getParameters();
        for (IParameter param : params) {
          if ((!ignoreEmpty || param.getValue().length() > 0)
              && !ignoreList.contains(param.getName())) {
            int type = param.getType();
            Map<String, CorrelatedParam> paramMap;
            switch (type) {
              case IParameter.PARAM_URL:
                paramMap = urlParameters;
                break;
              case IParameter.PARAM_BODY:
                paramMap = bodyParameters;
                break;
              case IParameter.PARAM_COOKIE:
                paramMap = cookieParameters;
                break;
              case IParameter.PARAM_JSON:
                paramMap = jsonParameters;
                break;
              default:
                paramMap = null;
                // nothing
            }

            if (paramMap != null) {
              if (messages[i] == null) {
                callbacks.printOutput("Warning... adding null message!");
              }

              if (paramMap.containsKey(param.getName())) {
                paramMap
                    .get(param.getName())
                    .put(param, messages[i], requestInfo, responseString, helpers);
              } else {
                paramMap.put(
                    param.getName(),
                    new CorrelatedParam(param, messages[i], requestInfo, responseString, helpers));
              }
            }
          }
        }
      }
    }
  }