/*

 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package java.net;

/**

 * CookiePolicy implementations decide which cookies should be accepted

 * and which should be rejected. Three pre-defined policy implementations

 * are provided, namely ACCEPT_ALL, ACCEPT_NONE and ACCEPT_ORIGINAL_SERVER.

 *

 * <p>See RFC 2965 sec. 3.3 and 7 for more detail.

 *

 * @author Edward Wang

 * @since 1.6

 */

public interface CookiePolicy {

    /**

     * One pre-defined policy which accepts all cookies.

     */

    public static final CookiePolicy ACCEPT_ALL = new CookiePolicy(){

        public boolean shouldAccept(URI uri, HttpCookie cookie) {

            return true;

        }

    };

    /**

     * One pre-defined policy which accepts no cookies.

     */

    public static final CookiePolicy ACCEPT_NONE = new CookiePolicy(){

        public boolean shouldAccept(URI uri, HttpCookie cookie) {

            return false;

        }

    };

    /**

     * One pre-defined policy which only accepts cookies from original server.

     */

    public static final CookiePolicy ACCEPT_ORIGINAL_SERVER  = new CookiePolicy(){

        public boolean shouldAccept(URI uri, HttpCookie cookie) {

            if (uri == null || cookie == null)

                return false;

            return HttpCookie.domainMatches(cookie.getDomain(), uri.getHost());

        }

    };

    /**

     * Will be called to see whether or not this cookie should be accepted.

     *

     * @param uri       the URI to consult accept policy with

     * @param cookie    the HttpCookie object in question

     * @return          {@code true} if this cookie should be accepted;

     *                  otherwise, {@code false}

     */

    public boolean shouldAccept(URI uri, HttpCookie cookie);

}