Removed Servlet 2.4 forward attribute support in InternalResourceView and TilesView

spring-web/src/main/java/org/springframework/web/util/WebUtils.java

 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2013 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.
@@ -428,27 +428,6 @@ public abstract class WebUtils {
 		return (request.getAttribute(INCLUDE_REQUEST_URI_ATTRIBUTE) != null);
 	}
 
-	/**
-	 * Expose the current request URI and paths as {@link javax.servlet.http.HttpServletRequest}
-	 * attributes under the keys defined in the Servlet 2.4 specification,
-	 * for containers that implement 2.3 or an earlier version of the Servlet API:
-	 * {@code javax.servlet.forward.request_uri},
-	 * {@code javax.servlet.forward.context_path},
-	 * {@code javax.servlet.forward.servlet_path},
-	 * {@code javax.servlet.forward.path_info},
-	 * {@code javax.servlet.forward.query_string}.
-	 * <p>Does not override values if already present, to not cause conflicts
-	 * with the attributes exposed by Servlet 2.4+ containers themselves.
-	 * @param request current servlet request
-	 */
-	public static void exposeForwardRequestAttributes(HttpServletRequest request) {
-		exposeRequestAttributeIfNotPresent(request, FORWARD_REQUEST_URI_ATTRIBUTE, request.getRequestURI());
-		exposeRequestAttributeIfNotPresent(request, FORWARD_CONTEXT_PATH_ATTRIBUTE, request.getContextPath());
-		exposeRequestAttributeIfNotPresent(request, FORWARD_SERVLET_PATH_ATTRIBUTE, request.getServletPath());
-		exposeRequestAttributeIfNotPresent(request, FORWARD_PATH_INFO_ATTRIBUTE, request.getPathInfo());
-		exposeRequestAttributeIfNotPresent(request, FORWARD_QUERY_STRING_ATTRIBUTE, request.getQueryString());
-	}
-
 	/**
 	 * Expose the Servlet spec's error attributes as {@link javax.servlet.http.HttpServletRequest}
 	 * attributes under the keys defined in the Servlet 2.3 specification, for error pages that

spring-webmvc-tiles3/src/main/java/org/springframework/web/servlet/view/tiles3/TilesView.java

@@ -13,12 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.web.servlet.view.tiles3;
 
 import java.util.Locale;
 import java.util.Map;
-
-import javax.servlet.ServletContext;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
@@ -30,6 +29,7 @@ import org.apache.tiles.request.Request;
 import org.apache.tiles.request.render.Renderer;
 import org.apache.tiles.request.servlet.ServletRequest;
 import org.apache.tiles.request.servlet.ServletUtil;
+
 import org.springframework.web.context.request.RequestAttributes;
 import org.springframework.web.context.request.RequestContextHolder;
 import org.springframework.web.context.request.ServletRequestAttributes;
@@ -37,7 +37,6 @@ import org.springframework.web.servlet.support.JstlUtils;
 import org.springframework.web.servlet.support.RequestContext;
 import org.springframework.web.servlet.support.RequestContextUtils;
 import org.springframework.web.servlet.view.AbstractUrlBasedView;
-import org.springframework.web.util.WebUtils;
 
 /**
  * {@link org.springframework.web.servlet.View} implementation that renders
@@ -53,8 +52,6 @@ public class TilesView extends AbstractUrlBasedView {
 
 	private Renderer renderer;
 
-	private boolean exposeForwardAttributes = false;
-
 	private boolean exposeJstlAttributes = true;
 
 	private ApplicationContext applicationContext;
@@ -76,32 +73,24 @@ public class TilesView extends AbstractUrlBasedView {
 		this.exposeJstlAttributes = exposeJstlAttributes;
 	}
 
-	@Override
-	protected void initServletContext(ServletContext servletContext) {
-		super.initServletContext(servletContext);
-		if (servletContext.getMajorVersion() == 2 && servletContext.getMinorVersion() < 5) {
-			this.exposeForwardAttributes = true;
-		}
-	}
-
 	@Override
 	public void afterPropertiesSet() throws Exception {
 		super.afterPropertiesSet();
 
 		this.applicationContext = ServletUtil.getApplicationContext(getServletContext());
-
 		if (this.renderer == null) {
 			TilesContainer container = TilesAccess.getContainer(this.applicationContext);
 			this.renderer = new DefinitionRenderer(container);
 		}
 	}
 
+
 	@Override
 	public boolean checkResource(final Locale locale) throws Exception {
 		HttpServletRequest servletRequest = null;
 		RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
-		if(requestAttributes != null && requestAttributes instanceof ServletRequestAttributes) {
-			servletRequest = ((ServletRequestAttributes)requestAttributes).getRequest();
+		if (requestAttributes instanceof ServletRequestAttributes) {
+			servletRequest = ((ServletRequestAttributes) requestAttributes).getRequest();
 		}
 		Request request = new ServletRequest(this.applicationContext, servletRequest, null) {
 			@Override
@@ -117,28 +106,8 @@ public class TilesView extends AbstractUrlBasedView {
 			HttpServletResponse response) throws Exception {
 
 		exposeModelAsRequestAttributes(model, request);
-
 		if (this.exposeJstlAttributes) {
-			ServletContext servletContext = getServletContext();
-			JstlUtils.exposeLocalizationContext(new RequestContext(request, servletContext));
-		}
-
-		if (!response.isCommitted()) {
-			// Tiles is going to use a forward, but some web containers (e.g.
-			// OC4J 10.1.3)
-			// do not properly expose the Servlet 2.4 forward request
-			// attributes... However,
-			// must not do this on Servlet 2.5 or above, mainly for GlassFish
-			// compatibility.
-			if (this.exposeForwardAttributes) {
-				try {
-					WebUtils.exposeForwardRequestAttributes(request);
-				} catch (Exception ex) {
-					// Servlet container rejected to set internal attributes,
-					// e.g. on TriFork.
-					this.exposeForwardAttributes = false;
-				}
-			}
+			JstlUtils.exposeLocalizationContext(new RequestContext(request, getServletContext()));
 		}
 
 		Request tilesRequest = createTilesRequest(request, response);
@@ -146,9 +115,8 @@ public class TilesView extends AbstractUrlBasedView {
 	}
 
 	/**
-	 * Create a Tiles {@link Request}. This implementation creates a
-	 * {@link ServletRequest}.
-	 *
+	 * Create a Tiles {@link Request}.
+	 * <p>This implementation creates a {@link ServletRequest}.
 	 * @param request the current request
 	 * @param response the current response
 	 * @return the Tiles request

spring-webmvc/src/main/java/org/springframework/web/servlet/view/InternalResourceView.java

 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2013 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.
@@ -21,7 +21,6 @@ import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import javax.servlet.RequestDispatcher;
-import javax.servlet.ServletContext;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
@@ -69,8 +68,6 @@ public class InternalResourceView extends AbstractUrlBasedView {
 
 	private boolean alwaysInclude = false;
 
-	private volatile Boolean exposeForwardAttributes;
-
 	private boolean exposeContextBeansAsAttributes = false;
 
 	private Set<String> exposedContextBeanNames;
@@ -118,18 +115,6 @@ public class InternalResourceView extends AbstractUrlBasedView {
 		this.alwaysInclude = alwaysInclude;
 	}
 
-	/**
-	 * Set whether to explictly expose the Servlet 2.4 forward request attributes
-	 * when forwarding to the underlying view resource.
-	 * <p>Default is "true" on Servlet containers up until 2.4, and "false" for
-	 * Servlet 2.5 and above. Note that Servlet containers at 2.4 level and above
-	 * should expose those attributes automatically! This InternalResourceView
-	 * feature exists for Servlet 2.3 containers and misbehaving 2.4 containers.
-	 */
-	public void setExposeForwardAttributes(boolean exposeForwardAttributes) {
-		this.exposeForwardAttributes = exposeForwardAttributes;
-	}
-
 	/**
 	 * Set whether to make all Spring beans in the application context accessible
 	 * as request attributes, through lazy checking once an attribute gets accessed.
@@ -179,19 +164,6 @@ public class InternalResourceView extends AbstractUrlBasedView {
 		return false;
 	}
 
-	/**
-	 * Checks whether we need to explicitly expose the Servlet 2.4 request attributes
-	 * by default.
-	 * @see #setExposeForwardAttributes
-	 * @see #exposeForwardRequestAttributes(javax.servlet.http.HttpServletRequest)
-	 */
-	@Override
-	protected void initServletContext(ServletContext sc) {
-		if (this.exposeForwardAttributes == null && sc.getMajorVersion() == 2 && sc.getMinorVersion() < 5) {
-			this.exposeForwardAttributes = Boolean.TRUE;
-		}
-	}
-
 
 	/**
 	 * Render the internal resource given the specified model.
@@ -231,7 +203,6 @@ public class InternalResourceView extends AbstractUrlBasedView {
 
 		else {
 			// Note: The forwarded resource is supposed to determine the content type itself.
-			exposeForwardRequestAttributes(requestToExpose);
 			if (logger.isDebugEnabled()) {
 				logger.debug("Forwarding to resource [" + getUrl() + "] in InternalResourceView '" + getBeanName() + "'");
 			}
@@ -328,28 +299,4 @@ public class InternalResourceView extends AbstractUrlBasedView {
 		return (this.alwaysInclude || WebUtils.isIncludeRequest(request) || response.isCommitted());
 	}
 
-	/**
-	 * Expose the current request URI and paths as {@link HttpServletRequest}
-	 * attributes under the keys defined in the Servlet 2.4 specification,
-	 * for Servlet 2.3 containers as well as misbehaving Servlet 2.4 containers
-	 * (such as OC4J).
-	 * <p>Does not expose the attributes on Servlet 2.5 or above, mainly for
-	 * GlassFish compatibility (GlassFish gets confused by pre-exposed attributes).
-	 * In any case, Servlet 2.5 containers should finally properly support
-	 * Servlet 2.4 features, shouldn't they...
-	 * @param request current HTTP request
-	 * @see org.springframework.web.util.WebUtils#exposeForwardRequestAttributes
-	 */
-	protected void exposeForwardRequestAttributes(HttpServletRequest request) {
-		if (this.exposeForwardAttributes != null && this.exposeForwardAttributes) {
-			try {
-				WebUtils.exposeForwardRequestAttributes(request);
-			}
-			catch (Exception ex) {
-				// Servlet container rejected to set internal attributes, e.g. on TriFork.
-				this.exposeForwardAttributes = Boolean.FALSE;
-			}
-		}
-	}
-
 }

spring-webmvc/src/main/java/org/springframework/web/servlet/view/tiles2/TilesView.java

 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2013 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.
@@ -55,25 +55,6 @@ import org.springframework.web.util.WebUtils;
  */
 public class TilesView extends AbstractUrlBasedView {
 
-	private volatile boolean exposeForwardAttributes = false;
-
-
-	/**
-	 * Checks whether we need to explicitly expose the Servlet 2.4 request attributes
-	 * by default.
-	 * <p>This will be done by default on Servlet containers up until 2.4, and skipped
-	 * for Servlet 2.5 and above. Note that Servlet containers at 2.4 level and above
-	 * should expose those attributes automatically! This feature exists for
-	 * Servlet 2.3 containers and misbehaving 2.4 containers only.
-	 */
-	@Override
-	protected void initServletContext(ServletContext sc) {
-		if (sc.getMajorVersion() == 2 && sc.getMinorVersion() < 5) {
-			this.exposeForwardAttributes = true;
-		}
-	}
-
-
 	@Override
 	public boolean checkResource(final Locale locale) throws Exception {
 		TilesContainer container = ServletUtil.getContainer(getServletContext());
@@ -105,22 +86,6 @@ public class TilesView extends AbstractUrlBasedView {
 
 		exposeModelAsRequestAttributes(model, request);
 		JstlUtils.exposeLocalizationContext(new RequestContext(request, servletContext));
-
-		if (!response.isCommitted()) {
-			// Tiles is going to use a forward, but some web containers (e.g. OC4J 10.1.3)
-			// do not properly expose the Servlet 2.4 forward request attributes... However,
-			// must not do this on Servlet 2.5 or above, mainly for GlassFish compatibility.
-			if (this.exposeForwardAttributes) {
-				try {
-					WebUtils.exposeForwardRequestAttributes(request);
-				}
-				catch (Exception ex) {
-					// Servlet container rejected to set internal attributes, e.g. on TriFork.
-					this.exposeForwardAttributes = false;
-				}
-			}
-		}
-
 		container.render(getUrl(), request, response);
 	}
 

spring-webmvc/src/test/java/org/springframework/web/servlet/view/InternalResourceViewTests.java

@@ -17,9 +17,7 @@
 package org.springframework.web.servlet.view;
 
 import java.util.HashMap;
-import java.util.Iterator;
 import java.util.Set;
-
 import javax.servlet.http.HttpServletRequest;
 
 import junit.framework.TestCase;
@@ -55,47 +53,7 @@ public class InternalResourceViewTests extends TestCase {
 
 	public void testForward() throws Exception {
 		HashMap<String, Object> model = new HashMap<String, Object>();
-		Object obj = new Integer(1);
-		model.put("foo", "bar");
-		model.put("I", obj);
-
-		String url = "forward-to";
-
-		MockHttpServletRequest request = new MockHttpServletRequest("GET", "/myservlet/handler.do");
-		request.setContextPath("/mycontext");
-		request.setServletPath("/myservlet");
-		request.setPathInfo(";mypathinfo");
-		request.setQueryString("?param1=value1");
-
-		InternalResourceView view = new InternalResourceView();
-		view.setUrl(url);
-		view.setServletContext(new MockServletContext() {
-			@Override
-			public int getMinorVersion() {
-				return 4;
-			}
-		});
-
-		MockHttpServletResponse response = new MockHttpServletResponse();
-		view.render(model, request, response);
-		assertEquals(url, response.getForwardedUrl());
-
-		Set<String> keys = model.keySet();
-		for (Iterator<String> it = keys.iterator(); it.hasNext();) {
-			String key = it.next();
-			assertEquals(model.get(key), request.getAttribute(key));
-		}
-
-		assertEquals("/myservlet/handler.do", request.getAttribute(WebUtils.FORWARD_REQUEST_URI_ATTRIBUTE));
-		assertEquals("/mycontext", request.getAttribute(WebUtils.FORWARD_CONTEXT_PATH_ATTRIBUTE));
-		assertEquals("/myservlet", request.getAttribute(WebUtils.FORWARD_SERVLET_PATH_ATTRIBUTE));
-		assertEquals(";mypathinfo", request.getAttribute(WebUtils.FORWARD_PATH_INFO_ATTRIBUTE));
-		assertEquals("?param1=value1", request.getAttribute(WebUtils.FORWARD_QUERY_STRING_ATTRIBUTE));
-	}
-
-	public void testForwardWithForwardAttributesPresent() throws Exception {
-		HashMap<String, Object> model = new HashMap<String, Object>();
-		Object obj = new Integer(1);
+		Object obj = 1;
 		model.put("foo", "bar");
 		model.put("I", obj);
 
@@ -107,12 +65,6 @@ public class InternalResourceViewTests extends TestCase {
 		request.setPathInfo(";mypathinfo");
 		request.setQueryString("?param1=value1");
 
-		request.setAttribute(WebUtils.FORWARD_REQUEST_URI_ATTRIBUTE, "/MYservlet/handler.do");
-		request.setAttribute(WebUtils.FORWARD_CONTEXT_PATH_ATTRIBUTE, "/MYcontext");
-		request.setAttribute(WebUtils.FORWARD_SERVLET_PATH_ATTRIBUTE, "/MYservlet");
-		request.setAttribute(WebUtils.FORWARD_PATH_INFO_ATTRIBUTE, ";MYpathinfo");
-		request.setAttribute(WebUtils.FORWARD_QUERY_STRING_ATTRIBUTE, "?Param1=value1");
-
 		InternalResourceView view = new InternalResourceView();
 		view.setUrl(url);
 		view.setServletContext(new MockServletContext() {
@@ -127,21 +79,14 @@ public class InternalResourceViewTests extends TestCase {
 		assertEquals(url, response.getForwardedUrl());
 
 		Set<String> keys = model.keySet();
-		for (Iterator<String> it = keys.iterator(); it.hasNext();) {
-			String key = it.next();
+		for (String key : keys) {
 			assertEquals(model.get(key), request.getAttribute(key));
 		}
-
-		assertEquals("/MYservlet/handler.do", request.getAttribute(WebUtils.FORWARD_REQUEST_URI_ATTRIBUTE));
-		assertEquals("/MYcontext", request.getAttribute(WebUtils.FORWARD_CONTEXT_PATH_ATTRIBUTE));
-		assertEquals("/MYservlet", request.getAttribute(WebUtils.FORWARD_SERVLET_PATH_ATTRIBUTE));
-		assertEquals(";MYpathinfo", request.getAttribute(WebUtils.FORWARD_PATH_INFO_ATTRIBUTE));
-		assertEquals("?Param1=value1", request.getAttribute(WebUtils.FORWARD_QUERY_STRING_ATTRIBUTE));
 	}
 
 	public void testAlwaysInclude() throws Exception {
 		HashMap<String, Object> model = new HashMap<String, Object>();
-		Object obj = new Integer(1);
+		Object obj = 1;
 		model.put("foo", "bar");
 		model.put("I", obj);
 
@@ -161,15 +106,14 @@ public class InternalResourceViewTests extends TestCase {
 		assertEquals(url, response.getIncludedUrl());
 
 		Set<String> keys = model.keySet();
-		for (Iterator<String> iter = keys.iterator(); iter.hasNext();) {
-			String key = iter.next();
+		for (String key : keys) {
 			verify(request).setAttribute(key, model.get(key));
 		}
 	}
 
 	public void testIncludeOnAttribute() throws Exception {
 		HashMap<String, Object> model = new HashMap<String, Object>();
-		Object obj = new Integer(1);
+		Object obj = 1;
 		model.put("foo", "bar");
 		model.put("I", obj);
 
@@ -190,15 +134,14 @@ public class InternalResourceViewTests extends TestCase {
 		assertEquals(url, response.getIncludedUrl());
 
 		Set<String> keys = model.keySet();
-		for (Iterator<String> iter = keys.iterator(); iter.hasNext();) {
-			String key = iter.next();
+		for (String key : keys) {
 			verify(request).setAttribute(key, model.get(key));
 		}
 	}
 
 	public void testIncludeOnCommitted() throws Exception {
 		HashMap<String, Object> model = new HashMap<String, Object>();
-		Object obj = new Integer(1);
+		Object obj = 1;
 		model.put("foo", "bar");
 		model.put("I", obj);
 
@@ -220,8 +163,7 @@ public class InternalResourceViewTests extends TestCase {
 		assertEquals(url, response.getIncludedUrl());
 
 		Set<String> keys = model.keySet();
-		for (Iterator<String> iter = keys.iterator(); iter.hasNext();) {
-			String key = iter.next();
+		for (String key : keys) {
 			verify(request).setAttribute(key, model.get(key));
 		}
 	}