/*
 * 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.accumulo.server.rpc;

import org.apache.accumulo.core.client.ClientConfiguration;
import org.apache.accumulo.core.client.security.tokens.AuthenticationToken;
import org.apache.accumulo.core.client.security.tokens.KerberosToken;
import org.apache.accumulo.core.conf.AccumuloConfiguration;
import org.apache.accumulo.core.rpc.SaslConnectionParams;
import org.apache.accumulo.server.security.SystemCredentials.SystemToken;
import org.apache.accumulo.server.security.delegation.AuthenticationTokenSecretManager;

/**
 * Server-side SASL connection information
 */
public class SaslServerConnectionParams extends SaslConnectionParams {

  private AuthenticationTokenSecretManager secretManager;

  public SaslServerConnectionParams(AccumuloConfiguration conf, AuthenticationToken token) {
    this(conf, token, null);
  }

  public SaslServerConnectionParams(AccumuloConfiguration conf, AuthenticationToken token, AuthenticationTokenSecretManager secretManager) {
    super(conf, token);
    setSecretManager(secretManager);
  }

  public SaslServerConnectionParams(ClientConfiguration conf, AuthenticationToken token) {
    this(conf, token, null);
  }

  public SaslServerConnectionParams(ClientConfiguration conf, AuthenticationToken token, AuthenticationTokenSecretManager secretManager) {
    super(conf, token);
    setSecretManager(secretManager);
  }

  @Override
  protected void updateFromToken(AuthenticationToken token) {
    // Servers should never have a delegation token -- only a strong kerberos identity
    if (token instanceof KerberosToken || token instanceof SystemToken) {
      mechanism = SaslMechanism.GSSAPI;
    } else {
      throw new IllegalArgumentException("Cannot determine SASL mechanism for token class: " + token.getClass());
    }
  }

  public AuthenticationTokenSecretManager getSecretManager() {
    return secretManager;
  }

  public void setSecretManager(AuthenticationTokenSecretManager secretManager) {
    this.secretManager = secretManager;
  }
}