/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Sam
*/
package com.caucho.server.rewrite;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.annotation.PostConstruct;
import java.util.regex.Pattern;
/**
* A rewrite condition that passes if a named cookie exists and has a value
* that matches a regular expression.
*/
public class CookieCondition
extends AbstractCondition
{
private String _name;
private Pattern _regexp;
private boolean _caseInsensitive;
private boolean _sendVary = true;
CookieCondition(String name)
{
_name = name;
}
public void setCaseInsensitive(boolean caseInsensitive)
{
_caseInsensitive = caseInsensitive;
}
public void setRegexp(Pattern regexp)
{
_regexp = regexp;
}
public void setSendVary(boolean sendVary)
{
_sendVary = sendVary;
}
public String getTagName()
{
return "cookie";
}
@PostConstruct
public void init()
{
if (_regexp != null && _caseInsensitive)
_regexp = Pattern.compile(_regexp.pattern(), Pattern.CASE_INSENSITIVE);
}
public boolean isMatch(HttpServletRequest request,
HttpServletResponse response)
{
if (_sendVary)
addHeaderValue(response, "Vary", "Cookie");
Cookie[] cookies = request.getCookies();
if (cookies != null) {
for (int i = 0; i < cookies.length; i++) {
Cookie cookie = cookies[i];
if (cookie.getName().equals(_name)) {
return _regexp == null || _regexp.matcher(cookie.getValue()).find();
}
}
}
return false;
}
}