1 /*
2 * Copyright (c) 2002, 2019, 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 jdk.internal.access;
27
28 import javax.crypto.SealedObject;
29 import java.io.ObjectInputFilter;
30 import java.lang.module.ModuleDescriptor;
31 import java.util.ResourceBundle;
32 import java.util.jar.JarFile;
33 import java.io.Console;
34 import java.io.FileDescriptor;
35 import java.io.FilePermission;
36 import java.io.ObjectInputStream;
37 import java.io.RandomAccessFile;
38 import java.security.ProtectionDomain;
39 import jdk.internal.misc.Unsafe;
40
41 /** A repository of "shared secrets", which are a mechanism for
42 calling implementation-private methods in another package without
43 using reflection. A package-private class implements a public
44 interface and provides the ability to call package-private methods
45 within that package; the object implementing that interface is
46 provided through a third package to which access is restricted.
47 This framework avoids the primary disadvantage of using reflection
48 for this purpose, namely the loss of compile-time checking. */
49
50 public class SharedSecrets {
51 private static final Unsafe unsafe = Unsafe.getUnsafe();
52 private static JavaUtilJarAccess javaUtilJarAccess;
53 private static JavaLangAccess javaLangAccess;
54 private static JavaLangModuleAccess javaLangModuleAccess;
55 private static JavaLangInvokeAccess javaLangInvokeAccess;
56 private static JavaLangRefAccess javaLangRefAccess;
57 private static JavaIOAccess javaIOAccess;
58 private static JavaNetInetAddressAccess javaNetInetAddressAccess;
59 private static JavaNetHttpCookieAccess javaNetHttpCookieAccess;
60 private static JavaNetSocketAccess javaNetSocketAccess;
61 private static JavaNetUriAccess javaNetUriAccess;
62 private static JavaNetURLAccess javaNetURLAccess;
63 private static JavaNetURLClassLoaderAccess javaNetURLClassLoaderAccess;
64 private static JavaNioAccess javaNioAccess;
65 private static JavaIOFileDescriptorAccess javaIOFileDescriptorAccess;
66 private static JavaIOFilePermissionAccess javaIOFilePermissionAccess;
67 private static JavaSecurityAccess javaSecurityAccess;
68 private static JavaUtilZipFileAccess javaUtilZipFileAccess;
69 private static JavaUtilResourceBundleAccess javaUtilResourceBundleAccess;
70 private static JavaAWTAccess javaAWTAccess;
71 private static JavaAWTFontAccess javaAWTFontAccess;
72 private static JavaBeansAccess javaBeansAccess;
73 private static JavaObjectInputStreamAccess javaObjectInputStreamAccess;
74 private static JavaObjectInputFilterAccess javaObjectInputFilterAccess;
75 private static JavaIORandomAccessFileAccess javaIORandomAccessFileAccess;
76 private static JavaxCryptoSealedObjectAccess javaxCryptoSealedObjectAccess;
77
78 public static JavaUtilJarAccess javaUtilJarAccess() {
79 if (javaUtilJarAccess == null) {
80 // Ensure JarFile is initialized; we know that this class
81 // provides the shared secret
82 unsafe.ensureClassInitialized(JarFile.class);
83 }
84 return javaUtilJarAccess;
85 }
86
87 public static void setJavaUtilJarAccess(JavaUtilJarAccess access) {
88 javaUtilJarAccess = access;
89 }
90
91 public static void setJavaLangAccess(JavaLangAccess jla) {
92 javaLangAccess = jla;
93 }
94
95 public static JavaLangAccess getJavaLangAccess() {
96 return javaLangAccess;
97 }
98
99 public static void setJavaLangInvokeAccess(JavaLangInvokeAccess jlia) {
100 javaLangInvokeAccess = jlia;
101 }
102
103 public static JavaLangInvokeAccess getJavaLangInvokeAccess() {
104 if (javaLangInvokeAccess == null) {
105 try {
106 Class<?> c = Class.forName("java.lang.invoke.MethodHandleImpl");
107 unsafe.ensureClassInitialized(c);
108 } catch (ClassNotFoundException e) {};
109 }
110 return javaLangInvokeAccess;
111 }
112
113 public static void setJavaLangModuleAccess(JavaLangModuleAccess jlrma) {
114 javaLangModuleAccess = jlrma;
115 }
116
117 public static JavaLangModuleAccess getJavaLangModuleAccess() {
118 if (javaLangModuleAccess == null) {
119 unsafe.ensureClassInitialized(ModuleDescriptor.class);
120 }
121 return javaLangModuleAccess;
122 }
123
124 public static void setJavaLangRefAccess(JavaLangRefAccess jlra) {
125 javaLangRefAccess = jlra;
126 }
127
128 public static JavaLangRefAccess getJavaLangRefAccess() {
129 return javaLangRefAccess;
130 }
131
132 public static void setJavaNetUriAccess(JavaNetUriAccess jnua) {
133 javaNetUriAccess = jnua;
134 }
135
136 public static JavaNetUriAccess getJavaNetUriAccess() {
137 if (javaNetUriAccess == null)
138 unsafe.ensureClassInitialized(java.net.URI.class);
139 return javaNetUriAccess;
140 }
141
142 public static void setJavaNetURLAccess(JavaNetURLAccess jnua) {
143 javaNetURLAccess = jnua;
144 }
145
146 public static JavaNetURLAccess getJavaNetURLAccess() {
147 if (javaNetURLAccess == null)
148 unsafe.ensureClassInitialized(java.net.URL.class);
149 return javaNetURLAccess;
150 }
151
152 public static void setJavaNetURLClassLoaderAccess(JavaNetURLClassLoaderAccess jnua) {
153 javaNetURLClassLoaderAccess = jnua;
154 }
155
156 public static JavaNetURLClassLoaderAccess getJavaNetURLClassLoaderAccess() {
157 if (javaNetURLClassLoaderAccess == null)
158 unsafe.ensureClassInitialized(java.net.URLClassLoader.class);
159 return javaNetURLClassLoaderAccess;
160 }
161
162 public static void setJavaNetInetAddressAccess(JavaNetInetAddressAccess jna) {
163 javaNetInetAddressAccess = jna;
164 }
165
166 public static JavaNetInetAddressAccess getJavaNetInetAddressAccess() {
167 if (javaNetInetAddressAccess == null)
168 unsafe.ensureClassInitialized(java.net.InetAddress.class);
169 return javaNetInetAddressAccess;
170 }
171
172 public static void setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a) {
173 javaNetHttpCookieAccess = a;
174 }
175
176 public static JavaNetHttpCookieAccess getJavaNetHttpCookieAccess() {
177 if (javaNetHttpCookieAccess == null)
178 unsafe.ensureClassInitialized(java.net.HttpCookie.class);
179 return javaNetHttpCookieAccess;
180 }
181
182 public static void setJavaNetSocketAccess(JavaNetSocketAccess jnsa) {
183 javaNetSocketAccess = jnsa;
184 }
185
186 public static JavaNetSocketAccess getJavaNetSocketAccess() {
187 if (javaNetSocketAccess == null)
188 unsafe.ensureClassInitialized(java.net.ServerSocket.class);
189 return javaNetSocketAccess;
190 }
191
192 public static void setJavaNioAccess(JavaNioAccess jna) {
193 javaNioAccess = jna;
194 }
195
196 public static JavaNioAccess getJavaNioAccess() {
197 if (javaNioAccess == null) {
198 // Ensure java.nio.Buffer is initialized, which provides the
199 // shared secret.
200 unsafe.ensureClassInitialized(java.nio.Buffer.class);
201 }
202 return javaNioAccess;
203 }
204
205 public static void setJavaIOAccess(JavaIOAccess jia) {
206 javaIOAccess = jia;
207 }
208
209 public static JavaIOAccess getJavaIOAccess() {
210 if (javaIOAccess == null) {
211 unsafe.ensureClassInitialized(Console.class);
212 }
213 return javaIOAccess;
214 }
215
216 public static void setJavaIOFileDescriptorAccess(JavaIOFileDescriptorAccess jiofda) {
217 javaIOFileDescriptorAccess = jiofda;
218 }
219
220 public static JavaIOFilePermissionAccess getJavaIOFilePermissionAccess() {
221 if (javaIOFilePermissionAccess == null)
222 unsafe.ensureClassInitialized(FilePermission.class);
223
224 return javaIOFilePermissionAccess;
225 }
226
227 public static void setJavaIOFilePermissionAccess(JavaIOFilePermissionAccess jiofpa) {
228 javaIOFilePermissionAccess = jiofpa;
229 }
230
231 public static JavaIOFileDescriptorAccess getJavaIOFileDescriptorAccess() {
232 if (javaIOFileDescriptorAccess == null)
233 unsafe.ensureClassInitialized(FileDescriptor.class);
234
235 return javaIOFileDescriptorAccess;
236 }
237
238 public static void setJavaSecurityAccess(JavaSecurityAccess jsa) {
239 javaSecurityAccess = jsa;
240 }
241
242 public static JavaSecurityAccess getJavaSecurityAccess() {
243 if (javaSecurityAccess == null) {
244 unsafe.ensureClassInitialized(ProtectionDomain.class);
245 }
246 return javaSecurityAccess;
247 }
248
249 public static JavaUtilZipFileAccess getJavaUtilZipFileAccess() {
250 if (javaUtilZipFileAccess == null)
251 unsafe.ensureClassInitialized(java.util.zip.ZipFile.class);
252 return javaUtilZipFileAccess;
253 }
254
255 public static void setJavaUtilZipFileAccess(JavaUtilZipFileAccess access) {
256 javaUtilZipFileAccess = access;
257 }
258
259 public static void setJavaAWTAccess(JavaAWTAccess jaa) {
260 javaAWTAccess = jaa;
261 }
262
263 public static JavaAWTAccess getJavaAWTAccess() {
264 // this may return null in which case calling code needs to
265 // provision for.
266 return javaAWTAccess;
267 }
268
269 public static void setJavaAWTFontAccess(JavaAWTFontAccess jafa) {
270 javaAWTFontAccess = jafa;
271 }
272
273 public static JavaAWTFontAccess getJavaAWTFontAccess() {
274 // this may return null in which case calling code needs to
275 // provision for.
276 return javaAWTFontAccess;
277 }
278
279 public static JavaBeansAccess getJavaBeansAccess() {
280 return javaBeansAccess;
281 }
282
283 public static void setJavaBeansAccess(JavaBeansAccess access) {
284 javaBeansAccess = access;
285 }
286
287 public static JavaUtilResourceBundleAccess getJavaUtilResourceBundleAccess() {
288 if (javaUtilResourceBundleAccess == null)
289 unsafe.ensureClassInitialized(ResourceBundle.class);
290 return javaUtilResourceBundleAccess;
291 }
292
293 public static void setJavaUtilResourceBundleAccess(JavaUtilResourceBundleAccess access) {
294 javaUtilResourceBundleAccess = access;
295 }
296
297 public static JavaObjectInputStreamAccess getJavaObjectInputStreamAccess() {
298 if (javaObjectInputStreamAccess == null) {
299 unsafe.ensureClassInitialized(ObjectInputStream.class);
300 }
301 return javaObjectInputStreamAccess;
302 }
303
304 public static void setJavaObjectInputStreamAccess(JavaObjectInputStreamAccess access) {
305 javaObjectInputStreamAccess = access;
306 }
307
308 public static JavaObjectInputFilterAccess getJavaObjectInputFilterAccess() {
309 if (javaObjectInputFilterAccess == null) {
310 unsafe.ensureClassInitialized(ObjectInputFilter.Config.class);
311 }
312 return javaObjectInputFilterAccess;
313 }
314
315 public static void setJavaObjectInputFilterAccess(JavaObjectInputFilterAccess access) {
316 javaObjectInputFilterAccess = access;
317 }
318
319 public static void setJavaIORandomAccessFileAccess(JavaIORandomAccessFileAccess jirafa) {
320 javaIORandomAccessFileAccess = jirafa;
321 }
322
323 public static JavaIORandomAccessFileAccess getJavaIORandomAccessFileAccess() {
324 if (javaIORandomAccessFileAccess == null) {
325 unsafe.ensureClassInitialized(RandomAccessFile.class);
326 }
327 return javaIORandomAccessFileAccess;
328 }
329
330 public static void setJavaxCryptoSealedObjectAccess(JavaxCryptoSealedObjectAccess jcsoa) {
331 javaxCryptoSealedObjectAccess = jcsoa;
332 }
333
334 public static JavaxCryptoSealedObjectAccess getJavaxCryptoSealedObjectAccess() {
335 if (javaxCryptoSealedObjectAccess == null) {
336 unsafe.ensureClassInitialized(SealedObject.class);
337 }
338 return javaxCryptoSealedObjectAccess;
339 }
340 }