1 Reply Latest reply on Dec 12, 2008 2:04 PM by H G

    Integratio of Custom Filter Problem

    H G Newbie

      Hi,

      I'm using Eclipse 3.4.0 ganymede with JSF 1.2, Dynamic Web Module 2.5 and Facelets and RichFaces 3.2.2.

      I'm developing a Facebook app. I´m implementing the Authentication layer in custom filter:

      public class FaceBookAuthFilter implements Filter {
       private String _apiKey;
       private String _secretKey;
       public void init(final FilterConfig filterConfig){
       _apiKey = filterConfig.getInitParameter("api_key");
       _secretKey = filterConfig.getInitParameter("secret_key");
       }
      
       /**
       * Verifies whether user is logged in. If not, sends user to the login page.
       */
       public void doFilter(final ServletRequest request, final ServletResponse response, FilterChain chain) throws IOException, ServletException {
       HttpServletRequest httpReq = (HttpServletRequest) request;
       HttpServletResponse httpRes = (HttpServletResponse) response;
       try {
       FacebookXmlRestClient authClient = FaceBookAuthHandler.getAuthenticatedClient(httpReq, _apiKey, _secretKey);
       request.setAttribute("auth.client", authClient);
       chain.doFilter(request, response);
       } catch (FailedLoginException fle) {
       //user not logged in
       forceLogin(httpRes);
      
       } catch (Exception e) {
       //handle exception
       System.out.println(e.toString());
       }
       }
      
       /**
       * Sends user to login page
       * @param response
       */
       private void forceLogin(HttpServletResponse response) {
       try {
       response.sendRedirect ("http://www.facebook.com/login.php?api_key=" + _apiKey + "&v=1.0");
       } catch (IOException ioe) {
       //handle exception
       }
       }
      
       public void destroy() {
       }
      
      }
      


      This is what I have in web.xml

      <?xml version="1.0" encoding="UTF-8"?>
      <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
       <display-name>AskAvila</display-name>
      
      
       <context-param>
       <param-name>javax.faces.DEFAULT_SUFFIX</param-name>
       <param-value>.xhtml</param-value>
       </context-param>
      
      
      
      
       <welcome-file-list>
       <welcome-file>index.xhtml</welcome-file>
       <welcome-file>index.html</welcome-file>
       </welcome-file-list>
      
      
       <context-param>
       <param-name>org.richfaces.SKIN</param-name>
       <param-value>classic</param-value>
       </context-param>
       <context-param>
       <param-name>org.ajax4jsf.VIEW_HANDLERS</param-name>
       <param-value>com.sun.facelets.FaceletViewHandler</param-value>
       </context-param>
      
       <servlet>
       <servlet-name>Faces Servlet</servlet-name>
       <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
       <load-on-startup>1</load-on-startup>
       </servlet>
       <servlet-mapping>
       <servlet-name>Faces Servlet</servlet-name>
       <url-pattern>/faces/*</url-pattern>
       </servlet-mapping>
      
       <filter>
       <filter-name>FaceBookAuthFilter</filter-name>
       <filter-class>util.FaceBookAuthFilter</filter-class>
      
       <init-param>
       <param-name>api_key</param-name>
       <param-value>[the api key]</param-value>
       </init-param>
      
       <init-param>
       <param-name>secret_key</param-name>
       <param-value>[the secret_key]</param-value>
       </init-param>
       </filter>
      
       <filter-mapping>
       <filter-name>FaceBookAuthFilter</filter-name>
       <url-pattern>/faces/*</url-pattern>
       </filter-mapping>
      
      
      
       <filter>
       <display-name>RichFaces Filter</display-name>
       <filter-name>richfaces</filter-name>
       <filter-class>org.ajax4jsf.Filter</filter-class>
       </filter>
       <filter-mapping>
       <filter-name>richfaces</filter-name>
       <servlet-name>Faces Servlet</servlet-name>
       <dispatcher>REQUEST</dispatcher>
       <dispatcher>FORWARD</dispatcher>
       <dispatcher>INCLUDE</dispatcher>
       </filter-mapping>
      </web-app>
      


      Adding the custom filter I receive a blank page, richfaces don´t work propertly. How can I integrate propertly the custom filter, without having conflict with RichFaces filter?