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      1 /*
      2  * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/impl/cookie/NetscapeDomainHandler.java $
      3  * $Revision: 653041 $
      4  * $Date: 2008-05-03 03:39:28 -0700 (Sat, 03 May 2008) $
      5  *
      6  * ====================================================================
      7  * Licensed to the Apache Software Foundation (ASF) under one
      8  * or more contributor license agreements.  See the NOTICE file
      9  * distributed with this work for additional information
     10  * regarding copyright ownership.  The ASF licenses this file
     11  * to you under the Apache License, Version 2.0 (the
     12  * "License"); you may not use this file except in compliance
     13  * with the License.  You may obtain a copy of the License at
     14  *
     15  *   http://www.apache.org/licenses/LICENSE-2.0
     16  *
     17  * Unless required by applicable law or agreed to in writing,
     18  * software distributed under the License is distributed on an
     19  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     20  * KIND, either express or implied.  See the License for the
     21  * specific language governing permissions and limitations
     22  * under the License.
     23  * ====================================================================
     24  *
     25  * This software consists of voluntary contributions made by many
     26  * individuals on behalf of the Apache Software Foundation.  For more
     27  * information on the Apache Software Foundation, please see
     28  * <http://www.apache.org/>.
     29  *
     30  */
     31 package org.apache.http.impl.cookie;
     32 
     33 import java.util.Locale;
     34 import java.util.StringTokenizer;
     35 
     36 import org.apache.http.cookie.Cookie;
     37 import org.apache.http.cookie.CookieOrigin;
     38 import org.apache.http.cookie.MalformedCookieException;
     39 
     40 public class NetscapeDomainHandler extends BasicDomainHandler {
     41 
     42     public NetscapeDomainHandler() {
     43         super();
     44     }
     45 
     46     @Override
     47     public void validate(final Cookie cookie, final CookieOrigin origin)
     48             throws MalformedCookieException {
     49         super.validate(cookie, origin);
     50         // Perform Netscape Cookie draft specific validation
     51         String host = origin.getHost();
     52         String domain = cookie.getDomain();
     53         if (host.contains(".")) {
     54             int domainParts = new StringTokenizer(domain, ".").countTokens();
     55 
     56             if (isSpecialDomain(domain)) {
     57                 if (domainParts < 2) {
     58                     throw new MalformedCookieException("Domain attribute \""
     59                         + domain
     60                         + "\" violates the Netscape cookie specification for "
     61                         + "special domains");
     62                 }
     63             } else {
     64                 if (domainParts < 3) {
     65                     throw new MalformedCookieException("Domain attribute \""
     66                         + domain
     67                         + "\" violates the Netscape cookie specification");
     68                 }
     69             }
     70         }
     71     }
     72 
     73    /**
     74     * Checks if the given domain is in one of the seven special
     75     * top level domains defined by the Netscape cookie specification.
     76     * @param domain The domain.
     77     * @return True if the specified domain is "special"
     78     */
     79    private static boolean isSpecialDomain(final String domain) {
     80        final String ucDomain = domain.toUpperCase(Locale.ENGLISH);
     81        return ucDomain.endsWith(".COM")
     82                || ucDomain.endsWith(".EDU")
     83                || ucDomain.endsWith(".NET")
     84                || ucDomain.endsWith(".GOV")
     85                || ucDomain.endsWith(".MIL")
     86                || ucDomain.endsWith(".ORG")
     87                || ucDomain.endsWith(".INT");
     88    }
     89 
     90    @Override
     91 public boolean match(Cookie cookie, CookieOrigin origin) {
     92        if (cookie == null) {
     93            throw new IllegalArgumentException("Cookie may not be null");
     94        }
     95        if (origin == null) {
     96            throw new IllegalArgumentException("Cookie origin may not be null");
     97        }
     98        String host = origin.getHost();
     99        String domain = cookie.getDomain();
    100        if (domain == null) {
    101            return false;
    102        }
    103        return host.endsWith(domain);
    104    }
    105 
    106 }
    107