Created
February 22, 2012 09:21
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package edu.ub.gpr.statistics.filters; | |
import java.io.IOException; | |
import java.util.Properties; | |
import javax.servlet.Filter; | |
import javax.servlet.FilterChain; | |
import javax.servlet.FilterConfig; | |
import javax.servlet.ServletException; | |
import javax.servlet.ServletRequest; | |
import javax.servlet.ServletResponse; | |
import javax.servlet.http.HttpServletRequest; | |
import javax.servlet.http.HttpServletResponse; | |
import javax.servlet.http.HttpSession; | |
import org.apache.log4j.Logger; | |
import org.apache.log4j.PropertyConfigurator; | |
/** | |
* | |
* @author oriol.lopez | |
*/ | |
public class SessionAuthentication implements Filter | |
{ | |
private static String authType; | |
Logger log = Logger.getLogger(SessionAuthentication.class); | |
public void init(FilterConfig filterConfig) throws ServletException | |
{ | |
try | |
{ | |
Properties config = new Properties(); | |
config.load(this.getClass().getClassLoader().getResourceAsStream("gprstats.properties")); | |
PropertyConfigurator.configure(config); | |
authType = config.getProperty("gprstats.authentication"); | |
log.debug("SessionAuthentication Filter has been initialized."); | |
} | |
catch ( Exception ex ) | |
{ | |
log.error("Error " + ex.getMessage(), ex); | |
} | |
} | |
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) | |
throws IOException, ServletException | |
{ | |
HttpServletRequest _request = (HttpServletRequest)request; | |
HttpServletResponse _response = (HttpServletResponse)response; | |
log.debug("New request filtered: " + _request.getRequestURI()); | |
if ( _request.getRequestURI().equals("/gprstats/login.jsp") || | |
_request.getRequestURI().equals("/gprstats/login") || | |
_request.getRequestURI().equals("/gprstats/logout") || | |
_request.getRequestURI().equals("/gprstats/guest.jsp") ) | |
{ | |
chain.doFilter(request, response); | |
} | |
else | |
{ | |
if ( authType.equals("NONE") ) | |
{ | |
chain.doFilter(request, response); | |
} | |
else if ( authType.equals("SIMPLE") ) | |
{ | |
HttpSession session = _request.getSession(); | |
String logged = (String)session.getAttribute("logged"); | |
if ( logged == null ) | |
{ | |
_response.sendRedirect("/gprstats/login.jsp"); | |
} | |
else | |
{ | |
chain.doFilter(request, response); | |
} | |
} | |
else if ( authType.equals("AUTENUB") ) | |
{ | |
throw new UnsupportedOperationException("Not supported yet."); | |
} | |
} | |
} | |
public void destroy() | |
{ | |
log.info("SessionAuthentication Filter will be destroyed."); | |
} | |
} |
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