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/*
 * Copyright (c) 2015, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.soteria.servlet;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.glassfish.soteria.Utils;


public class CookieHandler {

	public static void saveCookie(HttpServletRequest request, HttpServletResponse response, String name, String value, Integer maxAge, boolean secureOnly, boolean HttpOnly) {
		Cookie cookie = new Cookie(name, value);
		if (maxAge != null) {
			cookie.setMaxAge(maxAge);
		}
		cookie.setSecure(secureOnly);
		cookie.setHttpOnly(HttpOnly);
		cookie.setPath(Utils.isEmpty(request.getContextPath())? "/" : request.getContextPath());

		response.addCookie(cookie);
	}
	
	public static Cookie getCookie(HttpServletRequest request, String name) {
		if (request.getCookies() != null) {
			for (Cookie cookie : request.getCookies()) {
				if (name.equals(cookie.getName()) && !isEmpty(cookie)) {
					return cookie;
				}
			}
		}

		return null;
	}

	public static void removeCookie(HttpServletRequest request, HttpServletResponse response, String name) {
		Cookie cookie = new Cookie(name, null);
		cookie.setMaxAge(0);
		cookie.setPath(Utils.isEmpty(request.getContextPath())? "/" : request.getContextPath());

		response.addCookie(cookie);
	}
	
	private static boolean isEmpty(Cookie cookie) {
		return cookie.getValue() == null || cookie.getValue().trim().isEmpty();
	}
	
}