RpcAuthenticationFailureHandler.java

package org.appfuse.webapp.security;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler;
import org.springframework.security.web.util.ELRequestMatcher;
import org.springframework.security.web.util.RequestMatcher;

/**
 * 
 * @author ivangsa
 *
 */
public class RpcAuthenticationFailureHandler extends SimpleUrlAuthenticationFailureHandler {

    private RequestMatcher requestMatcher = new ELRequestMatcher("hasHeader('X-Requested-With','XMLHttpRequest')");

    public void setRequestMatcher(RequestMatcher requestMatcher) {
        this.requestMatcher = requestMatcher;
    }

    @Override
    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
        if (isRpcRequest(request, response)) {
            response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
        } else {
            super.onAuthenticationFailure(request, response, exception);
        }
    }

    protected boolean isRpcRequest(HttpServletRequest request, HttpServletResponse response) {
        return requestMatcher.matches(request);
    }

}