The Tor Browser / file revision

 /*

  * ====================================================================

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  *   http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  * ====================================================================

  *

  * This software consists of voluntary contributions made by many

  * individuals on behalf of the Apache Software Foundation.  For more

  * information on the Apache Software Foundation, please see

  * <http://www.apache.org/>.

  *

  */

 package ch.boye.httpclientandroidlib.impl.cookie;

 import java.util.Locale;

 import ch.boye.httpclientandroidlib.annotation.Immutable;

 import ch.boye.httpclientandroidlib.cookie.Cookie;

 import ch.boye.httpclientandroidlib.cookie.CookieAttributeHandler;

 import ch.boye.httpclientandroidlib.cookie.CookieOrigin;

 import ch.boye.httpclientandroidlib.cookie.CookieRestrictionViolationException;

 import ch.boye.httpclientandroidlib.cookie.MalformedCookieException;

 import ch.boye.httpclientandroidlib.cookie.SetCookie;

 /**

  *

  * @since 4.0

  */

 @Immutable

 public class RFC2109DomainHandler implements CookieAttributeHandler {

     public RFC2109DomainHandler() {

         super();

     }

     public void parse(final SetCookie cookie, final String value)

             throws MalformedCookieException {

         if (cookie == null) {

             throw new IllegalArgumentException("Cookie may not be null");

         }

         if (value == null) {

             throw new MalformedCookieException("Missing value for domain attribute");

         }

         if (value.trim().length() == 0) {

             throw new MalformedCookieException("Blank value for domain attribute");

         }

         cookie.setDomain(value);

     }

     public void validate(final Cookie cookie, final CookieOrigin origin)

             throws MalformedCookieException {

         if (cookie == null) {

             throw new IllegalArgumentException("Cookie may not be null");

         }

         if (origin == null) {

             throw new IllegalArgumentException("Cookie origin may not be null");

         }

         String host = origin.getHost();

         String domain = cookie.getDomain();

         if (domain == null) {

             throw new CookieRestrictionViolationException("Cookie domain may not be null");

         }

         if (!domain.equals(host)) {

             int dotIndex = domain.indexOf('.');

             if (dotIndex == -1) {

                 throw new CookieRestrictionViolationException("Domain attribute \""

                         + domain

                         + "\" does not match the host \""

                         + host + "\"");

             }

             // domain must start with dot

             if (!domain.startsWith(".")) {

                 throw new CookieRestrictionViolationException("Domain attribute \""

                     + domain

                     + "\" violates RFC 2109: domain must start with a dot");

             }

             // domain must have at least one embedded dot

             dotIndex = domain.indexOf('.', 1);

             if (dotIndex < 0 || dotIndex == domain.length() - 1) {

                 throw new CookieRestrictionViolationException("Domain attribute \""

                     + domain

                     + "\" violates RFC 2109: domain must contain an embedded dot");

             }

             host = host.toLowerCase(Locale.ENGLISH);

             if (!host.endsWith(domain)) {

                 throw new CookieRestrictionViolationException(

                     "Illegal domain attribute \"" + domain

                     + "\". Domain of origin: \"" + host + "\"");

             }

             // host minus domain may not contain any dots

             String hostWithoutDomain = host.substring(0, host.length() - domain.length());

             if (hostWithoutDomain.indexOf('.') != -1) {

                 throw new CookieRestrictionViolationException("Domain attribute \""

                     + domain

                     + "\" violates RFC 2109: host minus domain may not contain any dots");

             }

         }

     }

     public boolean match(final Cookie cookie, final CookieOrigin origin) {

         if (cookie == null) {

             throw new IllegalArgumentException("Cookie may not be null");

         }

         if (origin == null) {

             throw new IllegalArgumentException("Cookie origin may not be null");

         }

         String host = origin.getHost();

         String domain = cookie.getDomain();

         if (domain == null) {

             return false;

         }

         return host.equals(domain) || (domain.startsWith(".") && host.endsWith(domain));

     }

 }