ssosearchservletaccessguard.java

关于Ultraseek的一些用法,刚初学,所以都是比较简单

/* -*- mode:java; indent-tabs-mode:nil; c-basic-offset:2 -*-
 *
 *  $RCSFile$ $Revision: 1.4 $ $Date: 2006/01/25 16:56:20 $
 *
 *  Copyright (c) 2004 Autonomy Corp.  All Rights Reserved.
 *  Permission to use, copy, modify, and distribute this file is hereby
 *  granted without fee, provided that the above copyright notice appear
 *  in all copies.
 */

import java.util.*;
import javax.servlet.http.*;

public class SSOSearchServletAccessGuard
  extends PragmaticHTTPAccessGuard
{

  /**
   * The names of the HTTP headers which are forwarded
   * from the user's browser to the document server
   * as part of the security-checking HTTP proxy.
   * <p>
   * Example: { "Cookie", "User-Agent" }
   */
  private final String hdrs[];

  public SSOSearchServletAccessGuard(String hdrs[]) {
    if (hdrs == null)
      throw new IllegalArgumentException("hdrs can not be null");
    this.hdrs = hdrs;
  }

  /**
   * Each HTTP Request will update the guard with the current values
   * for the HTTP Headers.  The guard checks the "important" headers,
   * if there are any changed values the cache of security information
   * is flushed, as the current session may have different permissions.
   */
  public void updateAuthentication(HttpServletRequest httpRequest) {
    if (httpRequest == null) 
      throw new IllegalArgumentException("httpRequest can not be null");

    /* Build a Map of the set of HTTP headers important for security.
     * When the value of any important HTTP header changes, the
     * HttpProxyAccessGuard will flush the cache of security checks. */
    Map newHeaders = new HashMap(hdrs.length);
    for (int i = 0; i < hdrs.length; i++)
      newHeaders.put(hdrs[i], httpRequest.getHeaders(hdrs[i]));
    this.setHTTPHeaders(newHeaders);
  }

}