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.authentication;
  
  import org.apache.ambari.server.configuration.Configuration;
  import org.apache.ambari.server.orm.entities.UserAuthenticationEntity;
  import org.apache.ambari.server.orm.entities.UserEntity;
  import org.apache.ambari.server.security.authorization.UserAuthenticationType;
  import org.apache.ambari.server.security.authorization.Users;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
  import org.springframework.security.core.Authentication;
  import org.springframework.security.core.AuthenticationException;
  import org.springframework.security.crypto.password.PasswordEncoder;
  
  import com.google.inject.Inject;
  
  /**
   * AmbariLocalAuthenticationProvider is an {@link org.springframework.security.authentication.AuthenticationProvider}
   * implementation used to authenticate users using username and password details from the local Ambari database.
   * <p>
   * Users will fail to authenticate, even if they supply the correct credentials if the account is locked out
   * by being disabled or locked due to too many consecutive failure.
   */
  public class AmbariLocalAuthenticationProvider extends AmbariAuthenticationProvider {
    private static final Logger LOG = LoggerFactory.getLogger(AmbariLocalAuthenticationProvider.class);
  
    private PasswordEncoder passwordEncoder;
  
    @Inject
    public AmbariLocalAuthenticationProvider(Users users, PasswordEncoder passwordEncoder, Configuration configuration) {
      super(users, configuration);
      this.passwordEncoder = passwordEncoder;
    }
  
    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
      if (authentication.getName() == null) {
        LOG.info("Authentication failed: no username provided");
        throw new InvalidUsernamePasswordCombinationException("");
      }
  
      String userName = authentication.getName().trim();
  
      if (authentication.getCredentials() == null) {
        LOG.info("Authentication failed: no credentials provided: {}", userName);
        throw new InvalidUsernamePasswordCombinationException(userName);
      }
  
      Users users = getUsers();
  
      UserEntity userEntity = users.getUserEntity(userName);
  
      if (userEntity == null) {
        LOG.info("User not found: {}", userName);
        throw new InvalidUsernamePasswordCombinationException(userName);
      }
  
      UserAuthenticationEntity authenticationEntity = getAuthenticationEntity(userEntity, UserAuthenticationType.LOCAL);
      if (authenticationEntity != null) {
        String password = authenticationEntity.getAuthenticationKey();
        String presentedPassword = authentication.getCredentials().toString();
  
        if (passwordEncoder.matches(presentedPassword, password)) {
          // The user was  authenticated, return the authenticated user object
          LOG.debug("Authentication succeeded - a matching username and password were found: {}", userName);
  
          try {
            users.validateLogin(userEntity, userName);
          }
          catch (AccountDisabledException | TooManyLoginFailuresException e) {
            if (getConfiguration().showLockedOutUserMessage()) {
              throw e;
            } else {
              // Do not give away information about the existence or status of a user
              throw new InvalidUsernamePasswordCombinationException(userName, false, e);
            }
          }
  
          AmbariUserDetails userDetails = new AmbariUserDetailsImpl(users.getUser(userEntity), password, users.getUserAuthorities(userEntity));
          return new AmbariUserAuthentication(password, userDetails, true);
        }
      }
  
      // The user was not authenticated, fail
      LOG.debug("Authentication failed: password does not match stored value: {}", userName);
      throw new InvalidUsernamePasswordCombinationException(userName);
    }
  
    @Override
    public boolean supports(Class<?> authentication) {
      return UsernamePasswordAuthenticationToken.class.isAssignableFrom(authentication);
    }
  }
  