com.caucho.rewrite.IfProtocolVersion Maven / Gradle / Ivy

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/*
 * Copyright (c) 1998-2018 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Sam
 */

package com.caucho.rewrite;

import java.util.regex.Pattern;

import javax.servlet.http.HttpServletRequest;

import com.caucho.config.Configurable;

/**
 * Match if the request is secure, i.e. if request.isSecure() matches.
 *
 *  * <resin:Allow url-pattern="/admin/*">
 *                  xmlns:resin="urn:java:com.caucho.resin">
 *   <resin:IfProtocolVersion value="ssl2|ssl3"/>
 * </resin:Allow>
 * 
 *
 * RequestPredicates may be used for security and rewrite actions.
 */
@Configurable
public class IfProtocolVersion implements RequestPredicate
{
  private Pattern _pattern;

  /**
   * Sets the secure value to test against.  If true matches if
   * isSecure() is true
   */
  @Configurable
  public void setValue(Pattern value)
  {
    _pattern = value;
  }

  /**
   * True if the predicate matches.
   *
   * @param request the servlet request to test
   */
  @Override
  public boolean isMatch(HttpServletRequest request)
  {
    if (! request.isSecure()) {
      return false;
    }
    
    String protocol = (String) request.getAttribute("com.caucho.servlet.request.ssl-protocol");

    if (protocol == null || _pattern == null) {
      return false;
    }
    
    return _pattern.matcher(protocol).matches();
  }
}