001/*
002 * ====================================================================
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *   http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing,
014 * software distributed under the License is distributed on an
015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
016 * KIND, either express or implied.  See the License for the
017 * specific language governing permissions and limitations
018 * under the License.
019 * ====================================================================
020 *
021 * This software consists of voluntary contributions made by many
022 * individuals on behalf of the Apache Software Foundation.  For more
023 * information on the Apache Software Foundation, please see
024 * <http://www.apache.org/>.
025 *
026 */
027package org.apache.http.impl.cookie;
028
029import java.util.Date;
030import java.util.regex.Matcher;
031import java.util.regex.Pattern;
032
033import org.apache.http.annotation.Contract;
034import org.apache.http.annotation.ThreadingBehavior;
035import org.apache.http.cookie.ClientCookie;
036import org.apache.http.cookie.CommonCookieAttributeHandler;
037import org.apache.http.cookie.MalformedCookieException;
038import org.apache.http.cookie.SetCookie;
039import org.apache.http.util.Args;
040import org.apache.http.util.TextUtils;
041
042/**
043 *
044 * @since 4.4
045 */
046@Contract(threading = ThreadingBehavior.IMMUTABLE)
047public class LaxMaxAgeHandler extends AbstractCookieAttributeHandler implements CommonCookieAttributeHandler {
048
049    private final static Pattern MAX_AGE_PATTERN = Pattern.compile("^\\-?[0-9]+$");
050
051    public LaxMaxAgeHandler() {
052        super();
053    }
054
055    @Override
056    public void parse(final SetCookie cookie, final String value) throws MalformedCookieException {
057        Args.notNull(cookie, "Cookie");
058        if (TextUtils.isBlank(value)) {
059            return;
060        }
061        final Matcher matcher = MAX_AGE_PATTERN.matcher(value);
062        if (matcher.matches()) {
063            final int age;
064            try {
065                age = Integer.parseInt(value);
066            } catch (final NumberFormatException e) {
067                return;
068            }
069            final Date expiryDate = age >= 0 ? new Date(System.currentTimeMillis() + age * 1000L) :
070                    new Date(Long.MIN_VALUE);
071            cookie.setExpiryDate(expiryDate);
072        }
073    }
074
075    @Override
076    public String getAttributeName() {
077        return ClientCookie.MAX_AGE_ATTR;
078    }
079
080}