/*
    * Copyright (c) 2011-2024 PrimeFaces Extensions
    *
    *  Permission is hereby granted, free of charge, to any person obtaining a copy
    *  of this software and associated documentation files (the "Software"), to deal
    *  in the Software without restriction, including without limitation the rights
    *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    *  copies of the Software, and to permit persons to whom the Software is
    *  furnished to do so, subject to the following conditions:
   *
   *  The above copyright notice and this permission notice shall be included in
   *  all copies or substantial portions of the Software.
   *
   *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   *  THE SOFTWARE.
   */
  package org.primefaces.extensions.component.cookiepolicy;
  
  import javax.faces.component.UIComponentBase;
  import javax.faces.context.ExternalContext;
  import javax.faces.context.FacesContext;
  import javax.servlet.http.Cookie;
  import javax.servlet.http.HttpServletRequest;
  
  import org.primefaces.util.LangUtils;
  
  /**
   * <code>CookiePolicy</code> component.
   *
   * @author Melloware mellowaredev@gmail.com / Frank Cornelis
   * @since 11.0.3
   */
  public class CookiePolicy extends UIComponentBase {
  
      public static final String COOKIE_POLICY_COOKIE_NAME = "CookiePolicy";
  
      public static final String COOKIE_POLICY_REQUEST_ATTRIBUTE = CookiePolicy.class.getName() + ".CookiePolicy";
  
      public static final String COMPONENT_TYPE = "org.primefaces.extensions.component.CookiePolicy";
      public static final String COMPONENT_FAMILY = "org.primefaces.extensions.component";
  
      @Override
      public String getFamily() {
          return COMPONENT_FAMILY;
      }
  
      public boolean hasCookiePolicyCookie(final FacesContext context) {
          final ExternalContext externalContext = context.getExternalContext();
          final HttpServletRequest httpServletRequest = (HttpServletRequest) externalContext.getRequest();
          if (null != httpServletRequest.getAttribute(COOKIE_POLICY_REQUEST_ATTRIBUTE)) {
              return true;
          }
          return externalContext.getRequestCookieMap().containsKey(COOKIE_POLICY_COOKIE_NAME);
      }
  
      /**
       * Checks whether the given cookie policy has been accepted.
       *
       * @param cookiePolicy the cookie policy to be verified.
       * @return <code>true</code> if the cookie policy has been accepted, otherwise <code>false</code>.
       */
      public static boolean hasCookiePolicy(final String cookiePolicy) {
          final FacesContext facesContext = FacesContext.getCurrentInstance();
          final ExternalContext externalContext = facesContext.getExternalContext();
  
          final HttpServletRequest httpServletRequest = (HttpServletRequest) externalContext.getRequest();
          final String requestCookiePolicy = (String) httpServletRequest.getAttribute(COOKIE_POLICY_REQUEST_ATTRIBUTE);
          if (null != requestCookiePolicy) {
              return requestCookiePolicy.contains(cookiePolicy);
          }
  
          final Cookie cookie = (Cookie) externalContext.getRequestCookieMap().get(COOKIE_POLICY_COOKIE_NAME);
          if (null == cookie) {
              return false;
          }
          final String policy = cookie.getValue();
          if (LangUtils.isBlank(policy)) {
              return false;
          }
          return policy.contains(cookiePolicy);
      }
  
  }