1 /*
   2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.org.apache.xalan.internal;
  27 
  28 import com.sun.org.apache.xalan.internal.utils.SecuritySupport;
  29 
  30 /**
  31  * Commonly used constants.
  32  *
  33  * @author Huizhe Wang, Oracle
  34  *
  35  * @version $Id: Constants.java,v 1.14 2011-06-07 04:39:40 joehw Exp $
  36  */
  37 public final class XalanConstants {
  38 
  39     //
  40     // Constants
  41     //
  42     // Oracle Feature:
  43     /**
  44      * <p>Use Service Mechanism</p>
  45      *
  46      * <ul>
  47      *   <li>
  48          * {@code true} instruct an object to use service mechanism to
  49          * find a service implementation. This is the default behavior.
  50          *   </li>
  51          *   <li>
  52          * {@code false} instruct an object to skip service mechanism and
  53          * use the default implementation for that service.
  54      *   </li>
  55      * </ul>
  56     */
  57 
  58     public static final String ORACLE_FEATURE_SERVICE_MECHANISM = "http://www.oracle.com/feature/use-service-mechanism";
  59 
  60     /** Oracle JAXP property prefix ("http://www.oracle.com/xml/jaxp/properties/"). */
  61     public static final String ORACLE_JAXP_PROPERTY_PREFIX =
  62         "http://www.oracle.com/xml/jaxp/properties/";
  63 
  64     //System Properties corresponding to ACCESS_EXTERNAL_* properties
  65     public static final String SP_ACCESS_EXTERNAL_STYLESHEET = "javax.xml.accessExternalStylesheet";
  66     public static final String SP_ACCESS_EXTERNAL_DTD = "javax.xml.accessExternalDTD";
  67 
  68 
  69     //all access keyword
  70     public static final String ACCESS_EXTERNAL_ALL = "all";
  71 
  72     /**
  73      * Default value when FEATURE_SECURE_PROCESSING (FSP) is set to true
  74      */
  75     public static final String EXTERNAL_ACCESS_DEFAULT_FSP = "";
  76     /**
  77      * JDK version by which the default is to restrict external connection
  78      */
  79     public static final int RESTRICT_BY_DEFAULT_JDK_VERSION = 8;
  80     /**
  81      * FEATURE_SECURE_PROCESSING (FSP) is false by default
  82      */
  83     public static final String EXTERNAL_ACCESS_DEFAULT = ACCESS_EXTERNAL_ALL;
  84 
  85 } // class Constants