org.shaigor.rest.retro.security.gateway.oauth.CustomOAuth2WebSecurityExpressionHandler.java Source code

Introduction

Here is the source code for org.shaigor.rest.retro.security.gateway.oauth.CustomOAuth2WebSecurityExpressionHandler.java

Source

/**
 * Copyright 2014 the original author or authors.
 * 
 * This file is part of Retro-fitting Security into REST web services sample (the sample).
 * The sample is part of the talk presented at Java One 2014 
 *    https://oracleus.activeevents.com/2014/connect/sessionDetail.ww?SESSION_ID=1765&tclass=popup
 * 
 * The sample is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * The sample is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with the sample.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.shaigor.rest.retro.security.gateway.oauth;

import org.springframework.expression.spel.support.StandardEvaluationContext;
import org.springframework.security.core.Authentication;
import org.springframework.security.oauth2.provider.expression.OAuth2WebSecurityExpressionHandler;
import org.springframework.security.web.FilterInvocation;
import org.springframework.stereotype.Component;

/**
 * Allows plugging in custom authorization checker
 * @author Irena Shaigorodsky
 *
 */
@Component("demoOAuth2WebSecurityExpressionHandler")
public class CustomOAuth2WebSecurityExpressionHandler extends OAuth2WebSecurityExpressionHandler {

    @Override
    /**
     * Calculates role out of the request path info
     * Puts relative path info out for re-use
     * @param authentication
     * @param invocation
     * @see org.springframework.security.oauth2.provider.expression.OAuth2WebSecurityExpressionHandler.createEvaluationContextInternal(Authentication, FilterInvocation)
     * @return evaluation context with role and path variables defined
     */
    public StandardEvaluationContext createEvaluationContextInternal(Authentication authentication,
            FilterInvocation invocation) {
        StandardEvaluationContext ec = super.createEvaluationContextInternal(authentication, invocation);
        ec.setVariable("wordsServiceAuthorizer", new CustomSecurityExpressionMethods(authentication));
        return ec;
    }

}