de.msg.security.CustomPermissionEvaluator.java Source code

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Here is the source code for de.msg.security.CustomPermissionEvaluator.java

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/*
 * Copyright (C) 2016 msg-systems ag
 *
 * 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.
 *
 *
 * @author Rafael Kansy
 * @author Michael Schaefer
 */

package de.msg.security;

import org.springframework.security.access.PermissionEvaluator;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.User;
import org.springframework.stereotype.Component;

import java.io.Serializable;
import java.util.*;

@Component
public class CustomPermissionEvaluator implements PermissionEvaluator {

    private static final Map<String, List<String>> testPermissionMap;

    static {
        Map<String, List<String>> map = new HashMap<>();
        ArrayList<String> things = new ArrayList<>();
        things.add("Route");
        things.add("Flight");
        map.put("212389921", things);
        testPermissionMap = Collections.unmodifiableMap(map);
    }

    @Override
    public boolean hasPermission(Authentication authentication, Object targetDomainObject, Object permission) {
        return authorize((User) authentication.getPrincipal(), (String) targetDomainObject);
    }

    @Override
    public boolean hasPermission(Authentication authentication, Serializable targetId, String targetType,
            Object permission) {
        return false;
    }

    private boolean authorize(User user, String targetDomainObject) {
        boolean allowed = false;
        if (testPermissionMap.get(user.getUsername()) != null
                && testPermissionMap.get(user.getUsername()).contains(targetDomainObject)) {
            allowed = true;
        }
        return allowed;
    }
}