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 //Xerces security manager
43 public static final String SECURITY_MANAGER =
44 "http://apache.org/xml/properties/security-manager";
45
46 //
47 // Implementation limits: API properties
48 //
49 /** Oracle JAXP property prefix ("http://www.oracle.com/xml/jaxp/properties/"). */
50 public static final String ORACLE_JAXP_PROPERTY_PREFIX =
51 "http://www.oracle.com/xml/jaxp/properties/";
52 /**
53 * JDK entity expansion limit; Note that the existing system property
54 * "entityExpansionLimit" with no prefix is still observed
55 */
56 public static final String JDK_ENTITY_EXPANSION_LIMIT =
57 ORACLE_JAXP_PROPERTY_PREFIX + "entityExpansionLimit";
58
59 /**
60 * JDK element attribute limit; Note that the existing system property
61 * "elementAttributeLimit" with no prefix is still observed
62 */
63 public static final String JDK_ELEMENT_ATTRIBUTE_LIMIT =
64 ORACLE_JAXP_PROPERTY_PREFIX + "elementAttributeLimit";
65
66 /**
67 * JDK maxOccur limit; Note that the existing system property
68 * "maxOccurLimit" with no prefix is still observed
69 */
70 public static final String JDK_MAX_OCCUR_LIMIT =
71 ORACLE_JAXP_PROPERTY_PREFIX + "maxOccurLimit";
72
73 /**
74 * JDK total entity size limit
75 */
76 public static final String JDK_TOTAL_ENTITY_SIZE_LIMIT =
77 ORACLE_JAXP_PROPERTY_PREFIX + "totalEntitySizeLimit";
78
79 /**
80 * JDK maximum general entity size limit
81 */
82 public static final String JDK_GENEAL_ENTITY_SIZE_LIMIT =
83 ORACLE_JAXP_PROPERTY_PREFIX + "maxGeneralEntitySizeLimit";
84 /**
85 * JDK maximum parameter entity size limit
86 */
87 public static final String JDK_PARAMETER_ENTITY_SIZE_LIMIT =
88 ORACLE_JAXP_PROPERTY_PREFIX + "maxParameterEntitySizeLimit";
89 /**
90 * JDK maximum XML name limit
91 */
92 public static final String JDK_XML_NAME_LIMIT =
93 ORACLE_JAXP_PROPERTY_PREFIX + "maxXMLNameLimit";
94 /**
95 * JDK property indicating whether the parser shall print out entity
96 * count information
97 * Value: a string "yes" means print, "no" or any other string means not.
98 */
99 public static final String JDK_ENTITY_COUNT_INFO =
100 ORACLE_JAXP_PROPERTY_PREFIX + "getEntityCountInfo";
101
102 //
103 // Implementation limits: corresponding System Properties of the above
104 // API properties
105 //
106 /**
107 * JDK entity expansion limit; Note that the existing system property
108 * "entityExpansionLimit" with no prefix is still observed
109 */
110 public static final String SP_ENTITY_EXPANSION_LIMIT = "jdk.xml.entityExpansionLimit";
111
112 /**
113 * JDK element attribute limit; Note that the existing system property
114 * "elementAttributeLimit" with no prefix is still observed
115 */
116 public static final String SP_ELEMENT_ATTRIBUTE_LIMIT = "jdk.xml.elementAttributeLimit";
117
118 /**
119 * JDK maxOccur limit; Note that the existing system property
120 * "maxOccurLimit" with no prefix is still observed
121 */
122 public static final String SP_MAX_OCCUR_LIMIT = "jdk.xml.maxOccurLimit";
123
124 /**
125 * JDK total entity size limit
126 */
127 public static final String SP_TOTAL_ENTITY_SIZE_LIMIT = "jdk.xml.totalEntitySizeLimit";
128
129 /**
130 * JDK maximum general entity size limit
131 */
132 public static final String SP_GENEAL_ENTITY_SIZE_LIMIT = "jdk.xml.maxGeneralEntitySizeLimit";
133 /**
134 * JDK maximum parameter entity size limit
135 */
136 public static final String SP_PARAMETER_ENTITY_SIZE_LIMIT = "jdk.xml.maxParameterEntitySizeLimit";
137 /**
138 * JDK maximum XML name limit
139 */
140 public static final String SP_XML_NAME_LIMIT = "jdk.xml.maxXMLNameLimit";
141
142 //legacy System Properties
143 public final static String ENTITY_EXPANSION_LIMIT = "entityExpansionLimit";
144 public static final String ELEMENT_ATTRIBUTE_LIMIT = "elementAttributeLimit" ;
145 public final static String MAX_OCCUR_LIMIT = "maxOccurLimit";
146
147 /**
148 * A string "yes" that can be used for properties such as getEntityCountInfo
149 */
150 public static final String JDK_YES = "yes";
151
152 // Oracle Feature:
153 /**
154 * <p>Use Service Mechanism</p>
155 *
156 * <ul>
157 * <li>
158 * {@code true} instruct an object to use service mechanism to
159 * find a service implementation. This is the default behavior.
160 * </li>
161 * <li>
162 * {@code false} instruct an object to skip service mechanism and
163 * use the default implementation for that service.
164 * </li>
165 * </ul>
166 */
167 public static final String ORACLE_FEATURE_SERVICE_MECHANISM = "http://www.oracle.com/feature/use-service-mechanism";
168
169
170 //System Properties corresponding to ACCESS_EXTERNAL_* properties
171 public static final String SP_ACCESS_EXTERNAL_STYLESHEET = "javax.xml.accessExternalStylesheet";
172 public static final String SP_ACCESS_EXTERNAL_DTD = "javax.xml.accessExternalDTD";
173
174 //all access keyword
175 public static final String ACCESS_EXTERNAL_ALL = "all";
176
177 /**
178 * Default value when FEATURE_SECURE_PROCESSING (FSP) is set to true
179 */
180 public static final String EXTERNAL_ACCESS_DEFAULT_FSP = "";
181
182 /**
183 * FEATURE_SECURE_PROCESSING (FSP) is false by default
184 */
185 public static final String EXTERNAL_ACCESS_DEFAULT = ACCESS_EXTERNAL_ALL;
186
187 public static final String XML_SECURITY_PROPERTY_MANAGER =
188 ORACLE_JAXP_PROPERTY_PREFIX + "xmlSecurityPropertyManager";
189
190 /**
191 * Feature enableExtensionFunctions
192 */
193 public static final String ORACLE_ENABLE_EXTENSION_FUNCTION =
194 ORACLE_JAXP_PROPERTY_PREFIX + "enableExtensionFunctions";
195 public static final String SP_ORACLE_ENABLE_EXTENSION_FUNCTION = "javax.xml.enableExtensionFunctions";
196
197 /**
198 * Values for a feature
199 */
200 public static final String FEATURE_TRUE = "true";
201 public static final String FEATURE_FALSE = "false";
202
203 /**
204 * Check if we're in jdk8 or above
205 */
206 public static final boolean IS_JDK8_OR_ABOVE = isJavaVersionAtLeast(8);
207
208 /*
209 * Check the version of the current JDK against that specified in the
210 * parameter
211 *
212 * There is a proposal to change the java version string to:
213 * MAJOR.MINOR.FU.CPU.PSU-BUILDNUMBER_BUGIDNUMBER_OPTIONAL
214 * This method would work with both the current format and that proposed
215 *
216 * @param compareTo a JDK version to be compared to
217 * @return true if the current version is the same or above that represented
218 * by the parameter
219 */
220 public static boolean isJavaVersionAtLeast(int compareTo) {
221 String javaVersion = SecuritySupport.getSystemProperty("java.version");
222 String versions[] = javaVersion.split("\\.", 3);
223 if (Integer.parseInt(versions[0]) >= compareTo ||
224 Integer.parseInt(versions[1]) >= compareTo) {
225 return true;
226 }
227 return false;
228 }
229 } // class Constants