org.tec.security.spring.AuthenticationFailure.java Source code

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Here is the source code for org.tec.security.spring.AuthenticationFailure.java

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/*******************************************************************************
 * Copyright 2014 org.tec
 *
 * 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 org.tec.security.spring;

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

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;

/**
 * set 401 response on failure
 *
 */
public class AuthenticationFailure implements AuthenticationFailureHandler {
    /** the logger */
    protected Log mLogger = LogFactory.getLog(this.getClass());

    /**
     * {@inheritDoc}
     */
    @Override()
    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response,
            AuthenticationException exception) throws IOException, ServletException {
        if (mLogger.isDebugEnabled()) {
            mLogger.debug("failed login for " + request.getParameter("j_username"));
        }

        Writer out = response.getWriter();
        try {
            out.write("{success:false}");
        } catch (IOException e) {
            mLogger.error("failed to write to response", e);
            response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "processing failed");
        } finally {
            out.close();
        }
    }
}