eu.trentorise.game.api.rest.AuthorizationInterceptor.java Source code

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Here is the source code for eu.trentorise.game.api.rest.AuthorizationInterceptor.java

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/**
 * Copyright 2015 Fondazione Bruno Kessler - Trento RISE
 *
 * 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 eu.trentorise.game.api.rest;

import java.util.Map;

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

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.servlet.HandlerMapping;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import eu.trentorise.game.managers.PermissionManager;
import eu.trentorise.game.service.IdentityLookupService;

public class AuthorizationInterceptor extends HandlerInterceptorAdapter {

    @Autowired
    private PermissionManager permissionManager;

    @Autowired
    private IdentityLookupService identityLookup;

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {
        @SuppressWarnings("unchecked")
        Map<String, String> pathVariables = (Map<String, String>) request
                .getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);

        String gameId = (String) pathVariables.get("gameId");
        String user = identityLookup.getName();
        boolean isOk = permissionManager.checkGamePermission(user, gameId);
        if (!isOk) {
            response.sendError(HttpServletResponse.SC_FORBIDDEN, "access not permitted");
        }
        return isOk;
    }
}