craigmcc 00/12/16 17:02:44
Added: catalina/src/share/org/apache/catalina/valves
RequestDumperValve.java
Log:
Add a simple valve that dumps request and response header and cookie
information. This is useful in debugging problems with HTTP transactions.
Revision Changes Path
1.1
jakarta-tomcat-4.0/catalina/src/share/org/apache/catalina/valves/RequestDumperValve.java
Index: RequestDumperValve.java
===================================================================
/*
* $Header:
/home/cvs/jakarta-tomcat-4.0/catalina/src/share/org/apache/catalina/valves/RequestDumperValve.java,v
1.1 2000/12/17 01:02:44 craigmcc Exp $
* $Revision: 1.1 $
* $Date: 2000/12/17 01:02:44 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 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
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* [Additional notices, if required by prior licensing conditions]
*
*/
package org.apache.catalina.valves;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.catalina.Container;
import org.apache.catalina.HttpRequest;
import org.apache.catalina.HttpResponse;
import org.apache.catalina.Logger;
import org.apache.catalina.Request;
import org.apache.catalina.Response;
import org.apache.catalina.Valve;
import org.apache.catalina.connector.HttpResponseWrapper;
import org.apache.catalina.util.StringManager;
/**
* Implementation of a Valve that logs interesting contents from the
* specified Request (before processing) and the corresponding Response
* (after processing). It is especially useful in debugging problems
* related to headers and cookies.
* <p>
* This Valve may be attached to any Container, depending on the granularity
* of the logging you wish to perform.
*
* @author Craig R. McClanahan
* @version $Revision: 1.1 $ $Date: 2000/12/17 01:02:44 $
*/
public class RequestDumperValve
extends ValveBase {
// ----------------------------------------------------- Instance Variables
/**
* The descriptive information related to this implementation.
*/
private static final String info =
"org.apache.catalina.valves.RequestDumperValve/1.0";
/**
* The StringManager for this package.
*/
protected static StringManager sm =
StringManager.getManager(Constants.Package);
// ------------------------------------------------------------- Properties
/**
* Return descriptive information about this Valve implementation.
*/
public String getInfo() {
return (info);
}
// --------------------------------------------------------- Public Methods
/**
* Log the interesting request parameters, invoke the next Valve in the
* sequence, and log the interesting response parameters.
*
* @param request The servlet request to be processed
* @param response The servlet response to be created
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
*/
public void invoke(Request request, Response response)
throws IOException, ServletException {
// Skip logging for non-HTTP requests and responses
if (!(request instanceof HttpRequest) ||
!(response instanceof HttpResponse)) {
invokeNext(request, response);
return;
}
HttpRequest hrequest = (HttpRequest) request;
HttpResponse hresponse = (HttpResponse) response;
HttpServletRequest hreq =
(HttpServletRequest) hrequest.getRequest();
HttpServletResponse hres =
(HttpServletResponse) hresponse.getResponse();
// Log pre-service information
log("REQUEST URI =" + hreq.getRequestURI());
log(" authType=" + hreq.getAuthType());
log(" characterEncoding=" + hreq.getCharacterEncoding());
log(" contentLength=" + hreq.getContentLength());
log(" contentType=" + hreq.getContentType());
log(" contextPath=" + hreq.getContextPath());
Cookie cookies[] = hreq.getCookies();
for (int i = 0; i < cookies.length; i++)
log(" cookie=" + cookies[i].getName() + "=" +
cookies[i].getValue());
Enumeration hnames = hreq.getHeaderNames();
while (hnames.hasMoreElements()) {
String hname = (String) hnames.nextElement();
Enumeration hvalues = hreq.getHeaders(hname);
while (hvalues.hasMoreElements()) {
String hvalue = (String) hvalues.nextElement();
log(" header=" + hname + "=" + hvalue);
}
}
log(" locale=" + hreq.getLocale());
log(" method=" + hreq.getMethod());
Enumeration pnames = hreq.getParameterNames();
while (pnames.hasMoreElements()) {
String pname = (String) pnames.nextElement();
String pvalues[] = hreq.getParameterValues(pname);
StringBuffer result = new StringBuffer(pname);
result.append('=');
for (int i = 0; i < pvalues.length; i++) {
if (i > 0)
result.append(", ");
result.append(pvalues[i]);
}
log(" parameter=" + result.toString());
}
log(" pathInfo=" + hreq.getPathInfo());
log(" protocol=" + hreq.getProtocol());
log(" queryString=" + hreq.getQueryString());
log(" remoteAddr=" + hreq.getRemoteAddr());
log(" remoteHost=" + hreq.getRemoteHost());
log(" remoteUser=" + hreq.getRemoteUser());
log("requestedSessionId=" + hreq.getRequestedSessionId());
log(" scheme=" + hreq.getScheme());
log(" serverName=" + hreq.getServerName());
log(" serverPort=" + hreq.getServerPort());
log(" servletPath=" + hreq.getServletPath());
log(" isSecure=" + hreq.isSecure());
log("---------------------------------------------------------------");
// Perform the request
invokeNext(request, response);
// Log post-service information
log("---------------------------------------------------------------");
log(" authType=" + hreq.getAuthType());
log(" contentLength=" + hresponse.getContentLength());
log(" contentType=" + hresponse.getContentType());
Cookie rcookies[] = hresponse.getCookies();
for (int i = 0; i < rcookies.length; i++) {
log(" cookie=" + rcookies[i].getName() + "=" +
rcookies[i].getValue() + "; domain=" +
rcookies[i].getDomain() + "; path=" + rcookies[i].getPath());
}
String rhnames[] = hresponse.getHeaderNames();
for (int i = 0; i < rhnames.length; i++) {
String rhvalues[] = hresponse.getHeaderValues(rhnames[i]);
for (int j = 0; j < rhvalues.length; j++)
log(" header=" + rhnames[i] + "=" + rhvalues[j]);
}
log(" message=" + hresponse.getMessage());
log(" remoteUser=" + hreq.getRemoteUser());
log(" status=" + hresponse.getStatus());
log("===============================================================");
}
/**
* Return a String rendering of this object.
*/
public String toString() {
StringBuffer sb = new StringBuffer("RequestDumperValve[");
sb.append(container.getName());
sb.append("]");
return (sb.toString());
}
// ------------------------------------------------------ Protected Methods
/**
* Log a message on the Logger associated with our Container (if any).
*
* @param message Message to be logged
*/
protected void log(String message) {
Logger logger = container.getLogger();
if (logger != null)
logger.log(this.toString() + ": " + message);
else
System.out.println(this.toString() + ": " + message);
}
/**
* Log a message on the Logger associated with our Container (if any).
*
* @param message Message to be logged
* @param throwable Associated exception
*/
protected void log(String message, Throwable throwable) {
Logger logger = container.getLogger();
if (logger != null)
logger.log(this.toString() + ": " + message, throwable);
else {
System.out.println(this.toString() + ": " + message);
throwable.printStackTrace(System.out);
}
}
}
