Cookies.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2019 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * 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.
 *
 * 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.turro.marker;
 
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.turro.elephant.context.ElephantContext;
import org.turro.elephant.impl.util.CookieUtil;
 
public class Cookies {
  
  private final HttpServletRequest request;
  private final HttpServletResponse response;
 
  public Cookies(HttpServletRequest request, HttpServletResponse response) {
    this.request = request;
    this.response = response;
  }
 
  public Cookie get(String name) {
    return CookieUtil.getCookie(request, name);
  }
 
  public String getValue(String name) {
    Cookie c = get(name);
    return c != null ? c.getValue() : null;
  }
 
  public void set(String name, String value, String path, int age) {
    CookieUtil.setCookie(response, name, value, path, age);
  }
 
  public void encrypt(String name, String value, String path, int age) {
    try {
      byte[] b = ElephantContext.encrypt(value.getBytes());
      CookieUtil.encryptCookie(response, name, b, path, age);
    } catch (Exception ex) {
      Logger.getLogger(Cookies.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
  }
 
  public String decrypt(String name) {
    try {
      byte[] v = CookieUtil.decryptCookieValue(get(name));
      return new String(ElephantContext.decrypt(v));
    } catch (Exception ex) {
      Logger.getLogger(Cookies.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
    return null;
  }
 
  public void delete(String name, String path) {
    CookieUtil.deleteCookie(response, name, path);
  }
 
}