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 java.math.BigInteger;
  import java.security.SecureRandom;
  
  import com.google.inject.Inject;
  import com.google.inject.Singleton;
  
  /**
   * Generates single token for internal authentication
   */
  @Singleton
  public class InternalTokenStorage {
    private final SecureRandom random;
    private final String token;
  
    @Inject
    public InternalTokenStorage(SecureRandom secureRandom) {
      this.random = secureRandom;
      token = createNewToken();
    }
  
    public String getInternalToken() {
      return token;
    }
  
    public boolean isValidInternalToken(String token) {
      return this.token.equals(token);
    }
  
    public String createNewToken() {
      return new BigInteger(130, random).toString(32);
    }
  }
  