sk.lazyman.gizmo.security.SecurityUtils.java Source code

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Here is the source code for sk.lazyman.gizmo.security.SecurityUtils.java

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/*
 * Copyright 2015 Viliam Repan (lazyman)
 *
 * 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 sk.lazyman.gizmo.security;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

/**
 * @author lazyman
 */
public class SecurityUtils {

    private static final Logger LOGGER = LoggerFactory.getLogger(SecurityUtils.class);

    public static GizmoPrincipal getPrincipalUser() {
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();

        return getPrincipalUser(authentication);
    }

    public static GizmoPrincipal getPrincipalUser(Authentication authentication) {
        if (authentication == null) {
            LOGGER.debug("Authentication not available in security current context holder.");
            return null;
        }

        Object principal = authentication.getPrincipal();
        if (!(principal instanceof GizmoPrincipal)) {
            LOGGER.debug("Principal user in security context holder is {} but not type of {}",
                    new Object[] { principal, GizmoPrincipal.class.getName() });
            return null;
        }

        return (GizmoPrincipal) principal;
    }
}