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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/RFC2965VersionAttributeHandler.java $
      3  * $Revision: 590695 $
      4  * $Date: 2007-10-31 07:55:41 -0700 (Wed, 31 Oct 2007) $
      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 
     32 package org.apache.http.impl.cookie;
     33 
     34 import org.apache.http.cookie.ClientCookie;
     35 import org.apache.http.cookie.Cookie;
     36 import org.apache.http.cookie.CookieAttributeHandler;
     37 import org.apache.http.cookie.CookieOrigin;
     38 import org.apache.http.cookie.MalformedCookieException;
     39 import org.apache.http.cookie.SetCookie;
     40 import org.apache.http.cookie.SetCookie2;
     41 
     42 /**
     43  * <tt>"Version"</tt> cookie attribute handler for RFC 2965 cookie spec.
     44  */
     45 public class RFC2965VersionAttributeHandler implements CookieAttributeHandler {
     46 
     47     public RFC2965VersionAttributeHandler() {
     48         super();
     49     }
     50 
     51     /**
     52      * Parse cookie version attribute.
     53      */
     54     public void parse(final SetCookie cookie, final String value)
     55             throws MalformedCookieException {
     56         if (cookie == null) {
     57             throw new IllegalArgumentException("Cookie may not be null");
     58         }
     59         if (value == null) {
     60             throw new MalformedCookieException(
     61                     "Missing value for version attribute");
     62         }
     63         int version = -1;
     64         try {
     65             version = Integer.parseInt(value);
     66         } catch (NumberFormatException e) {
     67             version = -1;
     68         }
     69         if (version < 0) {
     70             throw new MalformedCookieException("Invalid cookie version.");
     71         }
     72         cookie.setVersion(version);
     73     }
     74 
     75     /**
     76      * validate cookie version attribute. Version attribute is REQUIRED.
     77      */
     78     public void validate(final Cookie cookie, final CookieOrigin origin)
     79             throws MalformedCookieException {
     80         if (cookie == null) {
     81             throw new IllegalArgumentException("Cookie may not be null");
     82         }
     83         if (cookie instanceof SetCookie2) {
     84             if (cookie instanceof ClientCookie
     85                     && !((ClientCookie) cookie).containsAttribute(ClientCookie.VERSION_ATTR)) {
     86                 throw new MalformedCookieException(
     87                         "Violates RFC 2965. Version attribute is required.");
     88             }
     89         }
     90     }
     91 
     92     public boolean match(final Cookie cookie, final CookieOrigin origin) {
     93         return true;
     94     }
     95 
     96 }