library/src/main/java/org/apache/fineract/cn/anubis/filter/IsisAuthenticatedProcessingFilter.java

/*
 * 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 org.apache.fineract.cn.anubis.filter;

import static org.apache.fineract.cn.api.util.ApiConstants.AUTHORIZATION_HEADER;
import static org.apache.fineract.cn.api.util.ApiConstants.USER_HEADER;

import org.apache.fineract.cn.anubis.api.v1.RoleConstants;
import org.apache.fineract.cn.anubis.api.v1.TokenConstants;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.web.authentication.preauth.AbstractPreAuthenticatedProcessingFilter;

import javax.servlet.http.HttpServletRequest;

import java.util.Optional;


/**
 * @author Myrle Krantz
 */
public class IsisAuthenticatedProcessingFilter extends AbstractPreAuthenticatedProcessingFilter {

  public IsisAuthenticatedProcessingFilter(final AuthenticationManager authenticationManager) {
    setAuthenticationManager(authenticationManager);
    setCheckForPrincipalChanges(true);
  }

  @Override protected Object getPreAuthenticatedPrincipal(final HttpServletRequest request) {
    return Optional.ofNullable(request.getHeader(USER_HEADER)).orElse(RoleConstants.GUEST_USER_IDENTIFIER);
  }

  @Override protected Object getPreAuthenticatedCredentials(final HttpServletRequest request) {
    return Optional.ofNullable(request.getHeader(AUTHORIZATION_HEADER)).orElse(TokenConstants.NO_AUTHENTICATION);
  }
}