content: /*
   * 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.ambari.server.security.authorization.internal;
  
  import org.apache.ambari.server.security.authentication.InvalidUsernamePasswordCombinationException;
  import org.springframework.security.authentication.AuthenticationProvider;
  import org.springframework.security.core.Authentication;
  import org.springframework.security.core.AuthenticationException;
  
  import com.google.inject.Inject;
  
  public class AmbariInternalAuthenticationProvider implements AuthenticationProvider {
  
    private final InternalTokenStorage internalTokenStorage;
  
    @Inject
    public AmbariInternalAuthenticationProvider(InternalTokenStorage internalTokenStorage) {
      this.internalTokenStorage = internalTokenStorage;
    }
  
    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
      InternalAuthenticationToken token = (InternalAuthenticationToken) authentication;
      if (internalTokenStorage.isValidInternalToken(token.getCredentials())) {
        token.setAuthenticated(true);
      } else {
        throw new InvalidUsernamePasswordCombinationException(null);
      }
      return token;
    }
  
    @Override
    public boolean supports(Class<?> authentication) {
      return InternalAuthenticationToken.class.isAssignableFrom(authentication);
    }
  }
  