com.jeanchampemont.notedown.utils.SecurityInterceptor.java Source code

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Here is the source code for com.jeanchampemont.notedown.utils.SecurityInterceptor.java

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/*
 * Copyright (C) 2014, 2015 NoteDown
 *
 * This file is part of the NoteDown project.
 *
 * 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.jeanchampemont.notedown.utils;

import org.springframework.security.authentication.AuthenticationTrustResolverImpl;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.access.expression.WebSecurityExpressionRoot;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Component
public class SecurityInterceptor extends HandlerInterceptorAdapter {
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
            ModelAndView modelAndView) throws Exception {
        if (modelAndView != null) {
            FilterInvocation filterInvocation = new FilterInvocation(request, response, new FilterChain() {
                public void doFilter(ServletRequest request, ServletResponse response)
                        throws IOException, ServletException {
                    throw new UnsupportedOperationException();
                }
            });

            Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
            if (authentication != null) {
                WebSecurityExpressionRoot sec = new WebSecurityExpressionRoot(authentication, filterInvocation);
                sec.setTrustResolver(new AuthenticationTrustResolverImpl());
                modelAndView.getModel().put("sec", sec);
            }
        }
    }
}