package org.rhq.enterprise.gui.legacy;
import java.io.IOException;
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.HttpSession;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.rhq.enterprise.gui.legacy.util.SessionUtils;
import org.rhq.enterprise.server.util.HibernatePerformanceMonitor;
public class WebUserTrackingFilter extends BaseFilter {
private static Log log = LogFactory.getLog(WebUserTrackingFilter.class);
@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException,
ServletException {
HttpServletRequest request = (HttpServletRequest) req;
HibernatePerformanceMonitor.get().zeroStats();
// only record GET requests, resubmitting to POST pages is dangerous
String method = request.getMethod();
if (method.equals("GET")) {
// do not create a session if one does not exist, that is the job of the AuthenticationFilter
HttpSession session = request.getSession(false);
WebUser webUser = SessionUtils.getWebUser(session); // will handle null session argument
if (webUser == null) {
chain.doFilter(req, res);
return;
}
String lastURL = getRequestURL(request);
WebUserPreferences preferences = webUser.getWebPreferences();
preferences.addLastVisitedURL(lastURL);
if (log.isDebugEnabled()) {
log.debug("User [" + webUser.getSubject().getName() + "] visited [" + lastURL + "]");
}
}
try {
chain.doFilter(req, res);
} catch (IOException e) {
log.warn("Caught IO Exception from client " + request.getRemoteAddr() + ": " + e.getMessage());
}
}
public String getRequestURL(HttpServletRequest request) {
StringBuffer url = request.getRequestURL();
if (request.getQueryString() != null) {
url.append('?');
url.append(request.getQueryString());
}
return url.toString();
}
}