com.marklogic.samplestack.web.security.SamplestackAuthenticationFailureHandler.java Source code

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Here is the source code for com.marklogic.samplestack.web.security.SamplestackAuthenticationFailureHandler.java

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/*
 * Copyright 2012-2014 MarkLogic Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.marklogic.samplestack.web.security;

import java.io.IOException;
import java.io.Writer;

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

import org.apache.http.HttpStatus;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler;
import org.springframework.stereotype.Component;

import com.marklogic.samplestack.web.JsonHttpResponse;

@Component
/**
 * Customization to default Spring Security behavior, which
 * simply provides a 401 response to the client then authenication fails.
 */
public class SamplestackAuthenticationFailureHandler extends SimpleUrlAuthenticationFailureHandler {

    @Autowired
    private JsonHttpResponse errors;

    @Override
    /**
     * Override handler that returns 401 after failed authentication.
     */
    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response,
            AuthenticationException exception) throws IOException, ServletException {

        HttpServletResponseWrapper responseWrapper = new HttpServletResponseWrapper(response);
        responseWrapper.setStatus(HttpStatus.SC_UNAUTHORIZED);

        Writer out = responseWrapper.getWriter();
        errors.writeJsonResponse(out, HttpStatus.SC_UNAUTHORIZED, "Unauthorized");
        out.close();
    }

}