1 /*
2 * The Apache Software License, Version 1.1
3 *
4 *
5 * Copyright (c) 2002 The Apache Software Foundation. All rights
6 * reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. The end-user documentation included with the redistribution,
21 * if any, must include the following acknowledgment:
22 * "This product includes software developed by the
23 * Apache Software Foundation (http://www.apache.org/)."
24 * Alternately, this acknowledgment may appear in the software itself,
25 * if and wherever such third-party acknowledgments normally appear.
26 *
27 * 4. The name "Apache Software Foundation" must not be used to endorse or
28 * promote products derived from this software without prior written
29 * permission. For written permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation and was
51 * originally based on software copyright (c) 1999-2002, Sun Microsystems,
52 * Inc., http://www.sun.com. For more information on the Apache Software
53 * Foundation, please see <http://www.apache.org/>.
54 */
55
56 package org.apache.xerces.parsers;
57
58 import java.security;
59 import java.io;
60
61 /**
62 * This class is duplicated for each JAXP subpackage so keep it in sync.
63 * It is package private and therefore is not exposed as part of the JAXP
64 * API.
65 *
66 * Security related methods that only work on J2SE 1.2 and newer.
67 */
68 class SecuritySupport12 extends SecuritySupport {
69
70 ClassLoader getContextClassLoader() {
71 return (ClassLoader)
72 AccessController.doPrivileged(new PrivilegedAction() {
73 public Object run() {
74 ClassLoader cl = null;
75 try {
76 cl = Thread.currentThread().getContextClassLoader();
77 } catch (SecurityException ex) { }
78 return cl;
79 }
80 });
81 }
82
83 ClassLoader getSystemClassLoader() {
84 return (ClassLoader)
85 AccessController.doPrivileged(new PrivilegedAction() {
86 public Object run() {
87 ClassLoader cl = null;
88 try {
89 cl = ClassLoader.getSystemClassLoader();
90 } catch (SecurityException ex) {}
91 return cl;
92 }
93 });
94 }
95
96 ClassLoader getParentClassLoader(final ClassLoader cl) {
97 return (ClassLoader)
98 AccessController.doPrivileged(new PrivilegedAction() {
99 public Object run() {
100 ClassLoader parent = null;
101 try {
102 parent = cl.getParent();
103 } catch (SecurityException ex) {}
104
105 // eliminate loops in case of the boot
106 // ClassLoader returning itself as a parent
107 return (parent == cl) ? null : parent;
108 }
109 });
110 }
111
112 String getSystemProperty(final String propName) {
113 return (String)
114 AccessController.doPrivileged(new PrivilegedAction() {
115 public Object run() {
116 return System.getProperty(propName);
117 }
118 });
119 }
120
121 FileInputStream getFileInputStream(final File file)
122 throws FileNotFoundException
123 {
124 try {
125 return (FileInputStream)
126 AccessController.doPrivileged(new PrivilegedExceptionAction() {
127 public Object run() throws FileNotFoundException {
128 return new FileInputStream(file);
129 }
130 });
131 } catch (PrivilegedActionException e) {
132 throw (FileNotFoundException)e.getException();
133 }
134 }
135
136 InputStream getResourceAsStream(final ClassLoader cl,
137 final String name)
138 {
139 return (InputStream)
140 AccessController.doPrivileged(new PrivilegedAction() {
141 public Object run() {
142 InputStream ris;
143 if (cl == null) {
144 ris = ClassLoader.getSystemResourceAsStream(name);
145 } else {
146 ris = cl.getResourceAsStream(name);
147 }
148 return ris;
149 }
150 });
151 }
152
153 boolean getFileExists(final File f) {
154 return ((Boolean)
155 AccessController.doPrivileged(new PrivilegedAction() {
156 public Object run() {
157 return new Boolean(f.exists());
158 }
159 })).booleanValue();
160 }
161
162 long getLastModified(final File f) {
163 return ((Long)
164 AccessController.doPrivileged(new PrivilegedAction() {
165 public Object run() {
166 return new Long(f.lastModified());
167 }
168 })).longValue();
169 }
170
171 }