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/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
 *
 * 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.
 */

package org.acegisecurity.providers.cas.proxy;

import org.acegisecurity.AcegiMessageSource;

import org.acegisecurity.providers.cas.CasProxyDecider;
import org.acegisecurity.providers.cas.ProxyUntrustedException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.beans.factory.InitializingBean;

import org.springframework.context.MessageSource;
import org.springframework.context.MessageSourceAware;
import org.springframework.context.support.MessageSourceAccessor;

import org.springframework.util.Assert;

import java.util.List;


/**
 * Accepts proxied requests if the closest proxy is named in the validProxies list.

Also accepts the * request if there was no proxy (ie the user directly authenticated against this service).

*/ public class NamedCasProxyDecider implements CasProxyDecider, InitializingBean, MessageSourceAware { //~ Static fields/initializers ===================================================================================== private static final Log logger = LogFactory.getLog(NamedCasProxyDecider.class); //~ Instance fields ================================================================================================ private List validProxies; protected MessageSourceAccessor messages = AcegiMessageSource.getAccessor(); //~ Methods ======================================================================================================== public void afterPropertiesSet() throws Exception { Assert.notNull(this.validProxies, "A validProxies list must be set"); Assert.notNull(this.messages, "A message source must be set"); } public void confirmProxyListTrusted(List proxyList) throws ProxyUntrustedException { Assert.notNull(proxyList, "proxyList cannot be null"); if (logger.isDebugEnabled()) { logger.debug("Proxy list: " + proxyList.toString()); } if (proxyList.size() == 0) { // A Service Ticket (not a Proxy Ticket) return; } if (!validProxies.contains(proxyList.get(0))) { throw new ProxyUntrustedException(messages.getMessage("NamedCasProxyDecider.untrusted", new Object[] {proxyList.get(0)}, "Nearest proxy {0} is untrusted")); } } public List getValidProxies() { return validProxies; } public void setMessageSource(MessageSource messageSource) { this.messages = new MessageSourceAccessor(messageSource); } public void setValidProxies(List validProxies) { this.validProxies = validProxies; } }




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