package servlets.admin.moduleManagement;

import jakarta.servlet.ServletException;
import jakarta.servlet.http.Cookie;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import java.io.IOException;
import java.io.PrintWriter;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import utils.ModuleBlock;
import utils.ShepherdLogManager;
import utils.Validate;

/**
 * Class to remove an optional blocking module that had been enabled. <br>
 * <br>
 * This file is part of the Security Shepherd Project.
 *
 * <p>The Security Shepherd project is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software Foundation, either
 * version 3 of the License, or (at your option) any later version.<br>
 *
 * <p>The Security Shepherd project 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 General Public License for more details.<br>
 *
 * <p>You should have received a copy of the GNU General Public License along with the Security
 * Shepherd project. If not, see <http://www.gnu.org/licenses/>.
 *
 * @author Mark Denihan
 */
public class RemoveModuleLock extends HttpServlet {

  public static String blockerId = "";
  public static String blockerMessage = "";
  public static boolean blockerEnabled = false;
  private static final long serialVersionUID = 1L;
  private static final Logger log = LogManager.getLogger(EnableModuleBlock.class);

  /** Used to remove a limit on the progress a player can make in a CTF environment */
  public void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    // Setting IpAddress To Log and taking header for original IP if forwarded from proxy
    ShepherdLogManager.setRequestIp(request.getRemoteAddr(), request.getHeader("X-Forwarded-For"));
    log.debug("&&& servlets.module.RemoveModuleLock &&&");
    PrintWriter out = response.getWriter();
    out.print(getServletInfo());
    HttpSession ses = request.getSession(true);
    Cookie tokenCookie = Validate.getToken(request.getCookies());
    Object tokenParmeter = request.getParameter("csrfToken");
    if (Validate.validateAdminSession(ses, tokenCookie, tokenParmeter)) {
      ShepherdLogManager.setRequestIp(
          request.getRemoteAddr(),
          request.getHeader("X-Forwarded-For"),
          ses.getAttribute("userName").toString());
      if (Validate.validateTokens(tokenCookie, tokenParmeter)) {
        try {
          log.debug("Blocker Disabled");
          ModuleBlock.reset();
          out.write(
              "<h2 class='title'>Blocker Disabled</h2><p>There is no longer any module blocker"
                  + " enabled on the application. All levels can be completed.</p>");
        } catch (Exception e) {
          log.error("RemoveModuleLock Error: " + e.toString());
        }
      } else {
        log.debug("CSRF Tokens did not match");
      }
    } else {
      log.error("Invalid Session Detected");
      out.write("css/images/loggedOutSheep.jpg");
    }
    log.debug("&&& END GetModule &&&");
  }
}