Mega Code Archive
Utilities for finding and manipulating cookies
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/*
* Copyright (c) 2003-2006, Simon Brown
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* - Neither the name of Pebble nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletResponse;
/**
* Utilities for finding and manipulating cookies.
*
* @author Simon Brown
*/
public class CookieUtils {
/** represents 4 weeks in seconds */
public static final int ONE_MONTH = 60 * 60 * 24 * 28;
/**
* Gets a reference to a named cookie from an array of cookies.
*
* @param cookies an array of cookies
* @param name the name of the cookie to find
* @return a reference to a Cookie, or null if the cookie couldn't be found
*/
public static Cookie getCookie(Cookie cookies[], String name) {
if (cookies != null) {
for (Cookie cookie : cookies) {
if (cookie.getName().equals(name)) {
return cookie;
}
}
}
// we've got this far so the specified cookie wasn't found
return null;
}
/**
* Adds a cookie with the specified name, value and expiry.
*
* @param response the HttpServletResponse to add the cookie to
* @param name the name of the cookie
* @param value the value of the cookie
* @param maxAge the maxAge of the cookie (in seconds)
*/
public static void addCookie(HttpServletResponse response, String name, String value, int maxAge) {
Cookie cookie = new Cookie(name, value);
cookie.setMaxAge(maxAge);
response.addCookie(cookie);
}
/**
* Removes a cookie with the specified name.
*
* @param response the HttpServletResponse to remove the cookie from
* @param name the name of the cookie
*/
public static void removeCookie(HttpServletResponse response, String name) {
addCookie(response, name, "", 0);
}
}
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