/*
* Copyright 2002-2015 the original author or authors.
*
* 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.springframework.web.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import org.junit.Test;
import org.springframework.mock.web.test.MockFilterConfig;
import org.springframework.mock.web.test.MockHttpServletRequest;
import org.springframework.mock.web.test.MockHttpServletResponse;
import org.springframework.mock.web.test.MockServletContext;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.StaticWebApplicationContext;
import static org.junit.Assert.*;
/**
* @author Juergen Hoeller
* @author Chris Beams
* @author Rob Winch
* @since 08.05.2005
*/
public class DelegatingFilterProxyTests {
@Test
public void testDelegatingFilterProxy() throws ServletException, IOException {
ServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.registerSingleton("targetFilter", MockFilter.class);
wac.refresh();
sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);
MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");
MockFilterConfig proxyConfig = new MockFilterConfig(sc);
proxyConfig.addInitParameter("targetBeanName", "targetFilter");
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
filterProxy.init(proxyConfig);
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test
public void testDelegatingFilterProxyAndCustomContextAttribute() throws ServletException, IOException {
ServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.registerSingleton("targetFilter", MockFilter.class);
wac.refresh();
sc.setAttribute("CUSTOM_ATTR", wac);
MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");
MockFilterConfig proxyConfig = new MockFilterConfig(sc);
proxyConfig.addInitParameter("targetBeanName", "targetFilter");
proxyConfig.addInitParameter("contextAttribute", "CUSTOM_ATTR");
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
filterProxy.init(proxyConfig);
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test
public void testDelegatingFilterProxyWithFilterDelegateInstance() throws ServletException, IOException {
MockFilter targetFilter = new MockFilter();
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy(targetFilter);
filterProxy.init(new MockFilterConfig(new MockServletContext()));
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test
public void testDelegatingFilterProxyWithTargetBeanName() throws ServletException, IOException {
MockServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.registerSingleton("targetFilter", MockFilter.class);
wac.refresh();
sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);
MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy("targetFilter");
filterProxy.init(new MockFilterConfig(sc));
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test
public void testDelegatingFilterProxyWithTargetBeanNameAndNotYetRefreshedApplicationContext() throws ServletException, IOException {
MockServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.registerSingleton("targetFilter", MockFilter.class);
// wac.refresh();
// note that the context is not set as the ROOT attribute in the ServletContext!
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy("targetFilter", wac);
filterProxy.init(new MockFilterConfig(sc));
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test(expected = IllegalStateException.class)
public void testDelegatingFilterProxyWithTargetBeanNameAndNoApplicationContext() throws ServletException, IOException {
MockServletContext sc = new MockServletContext();
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy("targetFilter", null);
filterProxy.init(new MockFilterConfig(sc));
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null); // throws
}
@Test
public void testDelegatingFilterProxyWithFilterName() throws ServletException, IOException {
ServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.registerSingleton("targetFilter", MockFilter.class);
wac.refresh();
sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);
MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");
MockFilterConfig proxyConfig = new MockFilterConfig(sc, "targetFilter");
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
filterProxy.init(proxyConfig);
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test
public void testDelegatingFilterProxyWithLazyContextStartup() throws ServletException, IOException {
ServletContext sc = new MockServletContext();
MockFilterConfig proxyConfig = new MockFilterConfig(sc);
proxyConfig.addInitParameter("targetBeanName", "targetFilter");
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
filterProxy.init(proxyConfig);
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.registerSingleton("targetFilter", MockFilter.class);
wac.refresh();
sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);
MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test
public void testDelegatingFilterProxyWithTargetFilterLifecycle() throws ServletException, IOException {
ServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.registerSingleton("targetFilter", MockFilter.class);
wac.refresh();
sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);
MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");
MockFilterConfig proxyConfig = new MockFilterConfig(sc);
proxyConfig.addInitParameter("targetBeanName", "targetFilter");
proxyConfig.addInitParameter("targetFilterLifecycle", "true");
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
filterProxy.init(proxyConfig);
assertEquals(proxyConfig, targetFilter.filterConfig);
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertEquals(proxyConfig, targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test
public void testDelegatingFilterProxyWithFrameworkServletContext() throws ServletException, IOException {
ServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.registerSingleton("targetFilter", MockFilter.class);
wac.refresh();
sc.setAttribute("org.springframework.web.servlet.FrameworkServlet.CONTEXT.dispatcher", wac);
MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");
MockFilterConfig proxyConfig = new MockFilterConfig(sc);
proxyConfig.addInitParameter("targetBeanName", "targetFilter");
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
filterProxy.init(proxyConfig);
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test
public void testDelegatingFilterProxyInjectedPreferred() throws ServletException, IOException {
ServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.refresh();
sc.setAttribute("org.springframework.web.servlet.FrameworkServlet.CONTEXT.dispatcher", wac);
StaticWebApplicationContext injectedWac = new StaticWebApplicationContext();
injectedWac.setServletContext(sc);
String beanName = "targetFilter";
injectedWac.registerSingleton(beanName, MockFilter.class);
injectedWac.refresh();
MockFilter targetFilter = (MockFilter) injectedWac.getBean(beanName);
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy(beanName, injectedWac);
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test
public void testDelegatingFilterProxyNotInjectedWacServletAttrPreferred() throws ServletException, IOException {
ServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.refresh();
sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);
sc.setAttribute("org.springframework.web.servlet.FrameworkServlet.CONTEXT.dispatcher", wac);
StaticWebApplicationContext wacToUse = new StaticWebApplicationContext();
wacToUse.setServletContext(sc);
String beanName = "targetFilter";
String attrName = "customAttrName";
wacToUse.registerSingleton(beanName, MockFilter.class);
wacToUse.refresh();
sc.setAttribute(attrName, wacToUse);
MockFilter targetFilter = (MockFilter) wacToUse.getBean(beanName);
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy(beanName);
filterProxy.setContextAttribute(attrName);
filterProxy.setServletContext(sc);
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
@Test
public void testDelegatingFilterProxyNotInjectedWithRootPreferred() throws ServletException, IOException {
ServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.refresh();
sc.setAttribute("org.springframework.web.servlet.FrameworkServlet.CONTEXT.dispatcher", wac);
sc.setAttribute("another", wac);
StaticWebApplicationContext wacToUse = new StaticWebApplicationContext();
wacToUse.setServletContext(sc);
String beanName = "targetFilter";
wacToUse.registerSingleton(beanName, MockFilter.class);
wacToUse.refresh();
sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wacToUse);
MockFilter targetFilter = (MockFilter) wacToUse.getBean(beanName);
DelegatingFilterProxy filterProxy = new DelegatingFilterProxy(beanName);
filterProxy.setServletContext(sc);
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
filterProxy.doFilter(request, response, null);
assertNull(targetFilter.filterConfig);
assertEquals(Boolean.TRUE, request.getAttribute("called"));
filterProxy.destroy();
assertNull(targetFilter.filterConfig);
}
public static class MockFilter implements Filter {
public FilterConfig filterConfig;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException {
request.setAttribute("called", Boolean.TRUE);
}
@Override
public void destroy() {
this.filterConfig = null;
}
}
}