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The source code

/*
 * $Header: /home/cvs/jakarta-commons/httpclient/src/java/org/apache/commons/httpclient/cookie/NetscapeDraftSpec.java,v 1.7.2.1 2004/02/22 18:21:15 olegk Exp $
 * $Revision: 1.7.2.1 $
 * $Date: 2004/02/22 18:21:15 $
 *
 * ====================================================================
 *
 *  Copyright 2002-2004 The Apache Software Foundation
 *
 *  Licensed 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
 * .
 *
 * [Additional notices, if required by prior licensing conditions]
 *
 */

package org.apache.commons.httpclient.cookie;

import java.util.StringTokenizer;
import java.util.Date;
import java.util.Locale;   
import java.text.DateFormat; 
import java.text.SimpleDateFormat;  
import java.text.ParseException; 
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.Cookie;

/**
 * 

Netscape cookie draft specific cookie management functions * * @author B.C. Holmes * @author Park, Sung-Gu * @author Doug Sale * @author Rod Waldhoff * @author dIon Gillard * @author Sean C. Sullivan * @author John Evans * @author Marc A. Saegesser * @author Oleg Kalnichevski * @author Mike Bowler * * @since 2.0 */ public class NetscapeDraftSpec extends CookieSpecBase { /** Default constructor */ public NetscapeDraftSpec() { super(); } /** * Parse the cookie attribute and update the corresponsing {@link Cookie} * properties as defined by the Netscape draft specification * * @param attribute {@link NameValuePair} cookie attribute from the * Set- Cookie * @param cookie {@link Cookie} to be updated * @throws MalformedCookieException if an exception occurs during parsing */ public void parseAttribute( final NameValuePair attribute, final Cookie cookie) throws MalformedCookieException { if (attribute == null) { throw new IllegalArgumentException("Attribute may not be null."); } if (cookie == null) { throw new IllegalArgumentException("Cookie may not be null."); } final String paramName = attribute.getName().toLowerCase(); final String paramValue = attribute.getValue(); if (paramName.equals("expires")) { if (paramValue == null) { throw new MalformedCookieException( "Missing value for expires attribute"); } try { DateFormat expiryFormat = new SimpleDateFormat( "EEE, dd-MMM-yyyy HH:mm:ss z", Locale.US); Date date = expiryFormat.parse(paramValue); cookie.setExpiryDate(date); } catch (ParseException e) { throw new MalformedCookieException("Invalid expires " + "attribute: " + e.getMessage()); } } else { super.parseAttribute(attribute, cookie); } } /** * Performs Netscape draft compliant {@link Cookie} validation * * @param host the host from which the {@link Cookie} was received * @param port the port from which the {@link Cookie} was received * @param path the path from which the {@link Cookie} was received * @param secure true when the {@link Cookie} was received * using a secure connection * @param cookie The cookie to validate. * @throws MalformedCookieException if an exception occurs during * validation */ public void validate(String host, int port, String path, boolean secure, final Cookie cookie) throws MalformedCookieException { LOG.trace("enterNetscapeDraftCookieProcessor " + "RCF2109CookieProcessor.validate(Cookie)"); // Perform generic validation super.validate(host, port, path, secure, cookie); // Perform Netscape Cookie draft specific validation if (host.indexOf(".") >= 0) { int domainParts = new StringTokenizer(cookie.getDomain(), ".") .countTokens(); if (isSpecialDomain(cookie.getDomain())) { if (domainParts < 2) { throw new MalformedCookieException("Domain attribute \"" + cookie.getDomain() + "\" violates the Netscape cookie specification for " + "special domains"); } } else { if (domainParts < 3) { throw new MalformedCookieException("Domain attribute \"" + cookie.getDomain() + "\" violates the Netscape cookie specification"); } } } } /** * Checks if the given domain is in one of the seven special * top level domains defined by the Netscape cookie specification. * @param domain The domain. * @return True if the specified domain is "special" */ private static boolean isSpecialDomain(final String domain) { final String ucDomain = domain.toUpperCase(); if (ucDomain.endsWith(".COM") || ucDomain.endsWith(".EDU") || ucDomain.endsWith(".NET") || ucDomain.endsWith(".GOV") || ucDomain.endsWith(".MIL") || ucDomain.endsWith(".ORG") || ucDomain.endsWith(".INT")) { return true; } return false; } }

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