/*
 * Copyright (C) 2000 - 2020 Silverpeas
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * As a special exception to the terms and conditions of version 3.0 of
 * the GPL, you may redistribute this Program in connection with Free/Libre
 * Open Source Software ("FLOSS") applications as described in Silverpeas's
 * FLOSS exception.  You should have received a copy of the text describing
 * the FLOSS exception, and it is also available here:
 * "https://www.silverpeas.org/legal/floss_exception.html"
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.silverpeas.web.admin;

import org.silverpeas.core.util.JSONCodec;
import org.silverpeas.core.util.StringUtil;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

public class QaptchaServlet extends HttpServlet {

  /**
   *
   */
  private static final long serialVersionUID = -3745690351420954550L;

  @Override
  protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException,
      IOException {
    processRequest(req, resp);
  }

  @Override
  protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException,
      IOException {
    processRequest(req, resp);
  }

  private void processRequest(HttpServletRequest req, HttpServletResponse resp) throws IOException {
    HttpSession session = req.getSession(true);

    String action = req.getParameter("action");
    String key = req.getParameter("qaptcha_key");
    boolean error;
    if ("qaptcha".equals(action) && StringUtil.isDefined(key)) {
      session.setAttribute("qaptcha_key", key);
      error = false;
    }
    else {
      session.removeAttribute("qaptcha_key");
      error = true;
    }
    String result = JSONCodec.encodeObject(o -> o.put("error", error));
    resp.getWriter().append(result);
  }

}

@@ -1253,47 +1253,62 @@
 il;%0A
-%0A
 import 
-javax.servlet.ServletException;
+org.silverpeas.core.util.logging.SilverLogger;%0A
 %0Aimp
@@ -1641,16 +1641,75 @@
 954550L;
+%0A  private static final String QAPTCHA_KEY = %22qaptcha_key%22;
 %0A%0A  @Ove
@@ -1791,51 +1791,8 @@
 esp)
- throws ServletException,%0A      IOException
  %7B%0A 
@@ -1914,51 +1914,8 @@
 esp)
- throws ServletException,%0A      IOException
  %7B%0A 
@@ -2032,27 +2032,8 @@
 esp)
- throws IOException
  %7B%0A 
@@ -2162,29 +2162,27 @@
 rameter(
-%22qaptcha_key%22
+QAPTCHA_KEY
 );%0A    b
@@ -2287,29 +2287,27 @@
 tribute(
-%22qaptcha_key%22
+QAPTCHA_KEY
 , key);%0A
@@ -2374,29 +2374,27 @@
 tribute(
-%22qaptcha_key%22
+QAPTCHA_KEY
 );%0A     
@@ -2486,16 +2486,28 @@
 rror));%0A
+    try %7B%0A  
     resp
@@ -2535,15 +2535,164 @@
 esult);%0A
+    %7D catch (IOException e) %7B%0A      SilverLogger.getLogger(this).error(e);%0A      resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);%0A    %7D%0A
   %7D%0A%0A%7D%0A

Fix quality issues in QaptchaServlet