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Shiro filter without redirection

I have a REST frontend that is called from Front-End code via jquery-Ajax-Requests. The called url is pinned like this:

/api/** = authc

If the user is not authenticated, Shiro wants to redirect the login url and ajax-Request will not be able to process it. I would prefer HTML status code as a response. What's the best way to achieve this? Thanks for any answers!

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You need to implement your own shiro filter. Something like that:



        import javax.servlet.ServletRequest;
        import javax.servlet.ServletResponse;

        import java.io.IOException ;
        import javax.servlet.http.HttpServletResponse ;

        import org.apache.shiro.web.filter.authz.AuthorizationFilter ;
        import org.apache.shiro.web.util.WebUtils ;

        public class LocalhostFilter extends AuthorizationFilter {

            private static final String message = "Access denied.";

            @Override
            protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) throws Exception {
                //do something when access allowed
                return true;       
 }

            @Override
            protected boolean onAccessDenied(ServletRequest request, ServletResponse response) throws IOException {
                HttpServletResponse httpResponse ;
                try { httpResponse = WebUtils.toHttp(response); }
                catch (ClassCastException ex) { 
                    // Not a HTTP Servlet operation
                    return super.onAccessDenied(request, response) ;
                }
                if ( message == null )
                    httpResponse.sendError(403) ;
                else
                    httpResponse.sendError(403, message) ;
                return false ;  // No further processing.
            }
        }
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