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Apache Solr (module: core)
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/*
 * 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.solr.security;

import java.security.Principal;
import java.util.Enumeration;
import java.util.List;
import org.apache.solr.common.params.SolrParams;

/** Request context for Solr to be used by Authorization plugin. */
public abstract class AuthorizationContext {

  public static class CollectionRequest {
    public final String collectionName;

    public CollectionRequest(String collectionName) {
      this.collectionName = collectionName;
    }

    @Override
    public String toString() {
      return getClass().getSimpleName() + "(" + collectionName + ")";
    }
  }

  public abstract SolrParams getParams();

  /**
   * This method returns the {@link Principal} corresponding to the authenticated user for the
   * current request. The value returned by {@link Principal#getName()} depends on the
   * authentication mechanism used (e.g. for user "foo" with BASIC authentication the result would
   * be "foo". On the other hand with KERBEROS it would be foo@REALMNAME). The {@link
   * #getUserName()} method may be preferred to extract the identity of the authenticated user
   * instead of this method.
   *
   * @return user principal in case of an authenticated request null in case of unauthenticated
   *     request
   */
  public abstract Principal getUserPrincipal();

  /**
   * This method returns the name of the authenticated user for the current request. The return
   * value of this method is agnostic of the underlying authentication mechanism used.
   *
   * @return user name in case of an authenticated user null in case of unauthenticated request
   */
  public abstract String getUserName();

  public abstract String getHttpHeader(String header);

  public abstract Enumeration getHeaderNames();

  public abstract String getRemoteAddr();

  public abstract String getRemoteHost();

  public abstract List getCollectionRequests();

  public abstract RequestType getRequestType();

  public abstract String getResource();

  public abstract String getHttpMethod();

  public enum RequestType {
    READ,
    WRITE,
    ADMIN,
    UNKNOWN
  }

  public abstract Object getHandler();
}