/*
|
WebBox - Dein Server.
|
Copyright (C) 2017 Ulrich Hilger, http://uhilger.de
|
|
This program is free software: you can redistribute it and/or modify
|
it under the terms of the GNU Affero General Public License as
|
published by the Free Software Foundation, either version 3 of the
|
License, or (at your option) any later version.
|
|
This program is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU Affero General Public License for more details.
|
|
You should have received a copy of the GNU Affero General Public License
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
*/
|
package de.uhilger.wbx.web;
|
|
import java.io.IOException;
|
import java.io.OutputStream;
|
import java.util.logging.Logger;
|
import javax.servlet.FilterChain;
|
import javax.servlet.ServletException;
|
import javax.servlet.ServletRequest;
|
import javax.servlet.ServletResponse;
|
import javax.servlet.http.HttpServletRequest;
|
import javax.servlet.http.HttpServletResponse;
|
|
/**
|
* Dieser Filter ist dem Beispiel auf
|
* http://otndnld.oracle.co.jp/document/products/as10g/101300/B25221_03/web.1013/b14426/filters.htm#BCFIAAAH
|
* entnommen und kann zum Testen von Filter-Konfigurationen oder als Ausgangsbasis
|
* fuer komplexere Filter-Funktionen verwendet werden.
|
*
|
* Das Beispiel umschliesst eine beliebige Antwort vom Server mit
|
* <HR>PRE</HR> <HR>POST</HR>
|
*
|
* @author ulrich
|
*/
|
public class PrePostFilter extends MyGenericFilter {
|
|
private static final Logger logger = Logger.getLogger(PrePostFilter.class.getName());
|
|
public void doFilter(final ServletRequest request,
|
final ServletResponse response,
|
FilterChain chain)
|
throws IOException, ServletException {
|
HttpServletRequest hr = (HttpServletRequest) request;
|
logger.info("requestURL: " + hr.getRequestURL().toString());
|
logger.info("ContextPath: " + hr.getContextPath());
|
logger.info("ServletPath: " + hr.getServletPath());
|
logger.info("PathInfo: " + hr.getPathInfo());
|
OutputStream out = response.getOutputStream();
|
out.write(new String("<HR>PRE<HR>").getBytes());
|
GenericResponseWrapper wrapper =
|
new GenericResponseWrapper((HttpServletResponse) response);
|
chain.doFilter(request,wrapper);
|
out.write(wrapper.getData());
|
out.write(new String("<HR>POST<HR>").getBytes());
|
out.close();
|
}
|
|
|
/*
|
|
MarkdownProcessor p = new MarkdownProcessor();
|
response.getWriter().write(p.markdown(responseContent));
|
|
*/
|
}
|
