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CASC-16 

upgraded to Spring's filter to bean proxy stuff
This commit is contained in:
Scott Battaglia 2006-09-27 15:23:56 +00:00
parent 5e804608df
commit 80748794ca
2 changed files with 6 additions and 81 deletions
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75
cas-client-core/src/main/java/org/jasig/cas/client/util/FilterToBeanProxy.java
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@ -1,75 +0,0 @@
/*
* Copyright 2006 The JA-SIG Collaborative. All rights reserved. See license
* distributed with this file and available online at
* http://www.ja-sig.org/products/cas/overview/license/index.html
*/
package org.jasig.cas.client.util;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import java.io.IOException;
/**
* Utility class to retrieve a Filter from a Spring-managed configuration file.
* Based on the FilterToBeanProxy class in Acegi Security (but simplified)
*
* @author Scott Battaglia
* @version $Revision$ $Date$
* @since 3.0
*/
public class FilterToBeanProxy implements Filter {
/**
* The filter we are proxying.
*/
private Filter filter;
/**
* Instance of commons logging.
*/
protected final Log log = LogFactory.getLog(this.getClass());
public final void destroy() {
// nothing to do
}
public final void doFilter(final ServletRequest request,
final ServletResponse response, final FilterChain chain)
throws IOException, ServletException {
this.filter.doFilter(request, response, chain);
}
public final void init(final FilterConfig filterConfig)
throws ServletException {
final String targetBean = filterConfig.getInitParameter("targetBean");
if (CommonUtils.isBlank(targetBean)) {
throw new ServletException(
"init-parameter missing: targetBean is required.");
}
final ApplicationContext ctx = this.getContext(filterConfig);
if (!ctx.containsBean(targetBean)) {
throw new ServletException("targetBean '" + targetBean
+ "' not found in context");
}
log.trace("Loading filter from Spring ApplicationContext with name: " + targetBean);
this.filter = (Filter) ctx.getBean(targetBean, Filter.class);
}
protected ApplicationContext getContext(FilterConfig filterConfig) {
return WebApplicationContextUtils
.getRequiredWebApplicationContext(filterConfig.getServletContext());
}
}

12
cas-client-core/src/main/resources/web-simple-example.xml
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@ -17,27 +17,27 @@
<filter>
<filter-name>CAS Authentication Filter Proxy</filter-name>
<filter-class>org.jasig.cas.client.util.FilterToBeanProxy</filter-class>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
<init-param>
<param-name>targetBean</param-name>
<param-name>targetBeanName</param-name>
<param-value>casAuthenticationFilter</param-value>
</init-param>
</filter>
<filter>
<filter-name>CAS Validation Filter Proxy</filter-name>
<filter-class>org.jasig.cas.client.util.FilterToBeanProxy</filter-class>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
<init-param>
<param-name>targetBean</param-name>
<param-name>targetBeanName</param-name>
<param-value>casValidationFilter</param-value>
</init-param>
</filter>
<filter>
<filter-name>CAS Authorization Filter Proxy</filter-name>
<filter-class>org.jasig.cas.client.util.FilterToBeanProxy</filter-class>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
<init-param>
<param-name>targetBean</param-name>
<param-name>targetBeanName</param-name>
<param-value>casAuthorizationFilter</param-value>
</init-param>
</filter>