ro.nextreports.server.security.NextServerAuthenticationProvider.java Source code

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Here is the source code for ro.nextreports.server.security.NextServerAuthenticationProvider.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 ro.nextreports.server.security;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;

/**
 * @author Decebal Suiu
 */
public class NextServerAuthenticationProvider extends DaoAuthenticationProvider {

    private static final Logger LOG = LoggerFactory.getLogger(NextServerAuthenticationProvider.class);

    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        if (!canResolve(authentication)) {
            return null; // it's ok to return null to ignore/skip the provider (see ProviderManager javadocs)
        }

        return super.authenticate(authentication);
    }

    private boolean canResolve(Authentication authentication) {
        try {
            String realm = ((NextServerAuthentication) authentication).getRealm();
            if (!StringUtils.isEmpty(realm)) {
                if (LOG.isDebugEnabled()) {
                    LOG.debug("nextserver cannot resolve your request");
                }

                return false;
            }
        } catch (ClassCastException e) {
            // ignore (probably it's a UsernamePasswordAuthenticationToken from WebServiceClient)
        }

        return true;
    }

}