/*
* $Header: /home/cvs/jakarta-tomcat-catalina/catalina/src/share/org/apache/catalina/core/StandardContextValve.java,v 1.13 2003/09/02 21:22:04 remm Exp $
* $Revision: 1.13 $
* $Date: 2003/09/02 21:22:04 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
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* 5. Products derived from this software may not be called "Apache"
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* [Additional notices, if required by prior licensing conditions]
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*/
package org.apache.catalina.core;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletRequestEvent;
import javax.servlet.ServletRequestListener;
import javax.servlet.http.HttpServletResponse;
import org.apache.catalina.Context;
import org.apache.catalina.Globals;
import org.apache.catalina.HttpRequest;
import org.apache.catalina.Logger;
import org.apache.catalina.Request;
import org.apache.catalina.Response;
import org.apache.catalina.ValveContext;
import org.apache.catalina.Wrapper;
import org.apache.catalina.util.StringManager;
import org.apache.catalina.valves.ValveBase;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tomcat.util.buf.MessageBytes;
import org.apache.tomcat.util.log.SystemLogHandler;
/**
* Valve that implements the default basic behavior for the
* <code>StandardContext</code> container implementation.
* <p>
* <b>USAGE CONSTRAINT</b>: This implementation is likely to be useful only
* when processing HTTP requests.
*
* @author Craig R. McClanahan
* @version $Revision: 1.13 $ $Date: 2003/09/02 21:22:04 $
*/
final class StandardContextValve
extends ValveBase {
// ----------------------------------------------------- Instance Variables
/**
* The descriptive information related to this implementation.
*/
private static final String info =
"org.apache.catalina.core.StandardContextValve/1.0";
/**
* The string manager for this package.
*/
private static final StringManager sm =
StringManager.getManager(Constants.Package);
private static Log log = LogFactory.getLog(StandardContextValve.class);
// ------------------------------------------------------------- Properties
/**
* Return descriptive information about this Valve implementation.
*/
public String getInfo() {
return (info);
}
// --------------------------------------------------------- Public Methods
/**
* Select the appropriate child Wrapper to process this request,
* based on the specified request URI. If no matching Wrapper can
* be found, return an appropriate HTTP error.
*
* @param request Request to be processed
* @param response Response to be produced
* @param valveContext Valve context used to forward to the next Valve
*
* @exception IOException if an input/output error occurred
* @exception ServletException if a servlet error occurred
*/
public final void invoke(Request request, Response response,
ValveContext valveContext)
throws IOException, ServletException {
// Disallow any direct access to resources under WEB-INF or META-INF
HttpRequest hreq = (HttpRequest) request;
MessageBytes requestPathMB = hreq.getRequestPathMB();
if ((requestPathMB.startsWithIgnoreCase("/META-INF/", 0))
|| (requestPathMB.equalsIgnoreCase("/META-INF"))
|| (requestPathMB.startsWithIgnoreCase("/WEB-INF/", 0))
|| (requestPathMB.equalsIgnoreCase("/WEB-INF"))) {
String requestURI = hreq.getDecodedRequestURI();
notFound(requestURI, (HttpServletResponse) response.getResponse());
return;
}
// Wait if we are reloading
while (((StandardContext) container).getPaused()) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
;
}
}
// Select the Wrapper to be used for this Request
Wrapper wrapper = request.getWrapper();
if (wrapper == null) {
String requestURI = hreq.getDecodedRequestURI();
notFound(requestURI, (HttpServletResponse) response.getResponse());
return;
}
// Normal request processing
if (((StandardContext) container).getSwallowOutput()) {
try {
SystemLogHandler.startCapture();
invokeInternal(wrapper, request, response);
} finally {
String log = SystemLogHandler.stopCapture();
if (log != null && log.length() > 0) {
container.getLogger().log(log);
}
}
} else {
invokeInternal(wrapper, request, response);
}
}
// -------------------------------------------------------- Private Methods
/**
* Call invoke.
*/
private void invokeInternal(Wrapper wrapper, Request request,
Response response)
throws IOException, ServletException {
Object instances[] =
((Context) container).getApplicationEventListeners();
ServletRequestEvent event = null;
if ((instances != null)
&& (instances.length > 0)) {
event = new ServletRequestEvent
(((StandardContext) container).getServletContext(),
request.getRequest());
// create pre-service event
for (int i = 0; i < instances.length; i++) {
if (instances[i] == null)
continue;
if (!(instances[i] instanceof ServletRequestListener))
continue;
ServletRequestListener listener =
(ServletRequestListener) instances[i];
try {
listener.requestInitialized(event);
} catch (Throwable t) {
log(sm.getString("requestListenerValve.requestInit",
instances[i].getClass().getName()), t);
ServletRequest sreq = request.getRequest();
sreq.setAttribute(Globals.EXCEPTION_ATTR,t);
return;
}
}
}
wrapper.getPipeline().invoke(request, response);
if ((instances !=null ) &&
(instances.length > 0)) {
// create post-service event
for (int i = 0; i < instances.length; i++) {
if (instances[i] == null)
continue;
if (!(instances[i] instanceof ServletRequestListener))
continue;
ServletRequestListener listener =
(ServletRequestListener) instances[i];
try {
listener.requestDestroyed(event);
} catch (Throwable t) {
log(sm.getString("requestListenerValve.requestDestroy",
instances[i].getClass().getName()), t);
ServletRequest sreq = request.getRequest();
sreq.setAttribute(Globals.EXCEPTION_ATTR,t);
}
}
}
}
/**
* Report a "bad request" error for the specified resource. FIXME: We
* should really be using the error reporting settings for this web
* application, but currently that code runs at the wrapper level rather
* than the context level.
*
* @param requestURI The request URI for the requested resource
* @param response The response we are creating
*/
private void badRequest(String requestURI, HttpServletResponse response) {
try {
response.sendError(HttpServletResponse.SC_BAD_REQUEST, requestURI);
} catch (IllegalStateException e) {
;
} catch (IOException e) {
;
}
}
/**
* Report a "forbidden" error for the specified resource.
*
* @param requestURI The request URI for the requested resource
* @param response The response we are creating
*/
private void forbidden(String requestURI, HttpServletResponse response) {
try {
response.sendError(HttpServletResponse.SC_FORBIDDEN, requestURI);
} catch (IllegalStateException e) {
;
} catch (IOException e) {
;
}
}
/**
* Report a "not found" error for the specified resource. FIXME: We
* should really be using the error reporting settings for this web
* application, but currently that code runs at the wrapper level rather
* than the context level.
*
* @param requestURI The request URI for the requested resource
* @param response The response we are creating
*/
private void notFound(String requestURI, HttpServletResponse response) {
try {
response.sendError(HttpServletResponse.SC_NOT_FOUND, requestURI);
} catch (IllegalStateException e) {
;
} catch (IOException e) {
;
}
}
/**
* Log a message on the Logger associated with our Container (if any)
*
* @param message Message to be logged
*/
private void log(String message) {
Logger logger = null;
if (container != null)
logger = container.getLogger();
if (logger != null)
logger.log("StandardContextValve[" + container.getName() + "]: "
+ message);
else {
String containerName = null;
if (container != null)
containerName = container.getName();
System.out.println("StandardContextValve[" + containerName
+ "]: " + message);
}
}
/**
* Log a message on the Logger associated with our Container (if any)
*
* @param message Message to be logged
* @param throwable Associated exception
*/
private void log(String message, Throwable throwable) {
Logger logger = null;
if (container != null)
logger = container.getLogger();
if (logger != null)
logger.log("StandardContextValve[" + container.getName() + "]: "
+ message, throwable);
else {
String containerName = null;
if (container != null)
containerName = container.getName();
System.out.println("StandardContextValve[" + containerName
+ "]: " + message);
System.out.println("" + throwable);
throwable.printStackTrace(System.out);
}
}
}