be.bittich.quote.security.AuthenticationTokenProcessingFilter.java Source code

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Here is the source code for be.bittich.quote.security.AuthenticationTokenProcessingFilter.java

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/*
 * Copyright 2014 nateriver.
 *
 * 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 be.bittich.quote.security;

import static be.bittich.quote.core.DynaUtil.extractAuthTokenFromRequest;
import be.bittich.quote.service.TokenService;
import be.bittich.quote.service.UserService;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.GenericFilterBean;

/**
 *
 * @author nateriver
 */
@Component
public class AuthenticationTokenProcessingFilter extends GenericFilterBean {

    @Autowired
    private UserService userService;

    @Autowired
    private TokenService tokenService;

    private static final Logger LOG = LoggerFactory.getLogger(AuthenticationTokenProcessingFilter.class);

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
        HttpServletRequest httpRequest = this.getAsHttpRequest(request);

        String authToken = extractAuthTokenFromRequest(httpRequest);

        String username = tokenService.getUsernameFromToken(authToken);

        if (username != null) {

            UserDetails userDetails = this.userService.loadUserByUsername(username);

            if (tokenService.validateToken(authToken, request.getRemoteAddr(), userDetails)) {
                UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(
                        userDetails.getUsername(), userDetails.getPassword(), userDetails.getAuthorities());
                authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(httpRequest));
                SecurityContextHolder.getContext().setAuthentication(authentication);
            }
        }

        chain.doFilter(request, response);
    }

    private HttpServletRequest getAsHttpRequest(ServletRequest request) {
        if (!(request instanceof HttpServletRequest)) {
            throw new RuntimeException("Expecting an HTTP request");
        }

        return (HttpServletRequest) request;
    }

}