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 java.security.Signature;
40 import jdk.internal.misc.Unsafe;
41
42 /** A repository of "shared secrets", which are a mechanism for
43 calling implementation-private methods in another package without
44 using reflection. A package-private class implements a public
45 interface and provides the ability to call package-private methods
46 within that package; the object implementing that interface is
47 provided through a third package to which access is restricted.
48 This framework avoids the primary disadvantage of using reflection
49 for this purpose, namely the loss of compile-time checking. */
50
51 public class SharedSecrets {
52 private static final Unsafe unsafe = Unsafe.getUnsafe();
53 private static JavaUtilJarAccess javaUtilJarAccess;
54 private static JavaLangAccess javaLangAccess;
55 private static JavaLangModuleAccess javaLangModuleAccess;
56 private static JavaLangInvokeAccess javaLangInvokeAccess;
57 private static JavaLangRefAccess javaLangRefAccess;
58 private static JavaIOAccess javaIOAccess;
59 private static JavaNetInetAddressAccess javaNetInetAddressAccess;
60 private static JavaNetHttpCookieAccess javaNetHttpCookieAccess;
61 private static JavaNetUriAccess javaNetUriAccess;
62 private static JavaNetURLAccess javaNetURLAccess;
63 private static JavaNioAccess javaNioAccess;
64 private static JavaIOFileDescriptorAccess javaIOFileDescriptorAccess;
65 private static JavaIOFilePermissionAccess javaIOFilePermissionAccess;
66 private static JavaSecurityAccess javaSecurityAccess;
67 private static JavaUtilZipFileAccess javaUtilZipFileAccess;
68 private static JavaUtilResourceBundleAccess javaUtilResourceBundleAccess;
69 private static JavaAWTAccess javaAWTAccess;
70 private static JavaAWTFontAccess javaAWTFontAccess;
71 private static JavaBeansAccess javaBeansAccess;
72 private static JavaObjectInputStreamAccess javaObjectInputStreamAccess;
73 private static JavaObjectInputFilterAccess javaObjectInputFilterAccess;
74 private static JavaIORandomAccessFileAccess javaIORandomAccessFileAccess;
75 private static JavaSecuritySignatureAccess javaSecuritySignatureAccess;
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 setJavaNetInetAddressAccess(JavaNetInetAddressAccess jna) {
153 javaNetInetAddressAccess = jna;
154 }
155
156 public static JavaNetInetAddressAccess getJavaNetInetAddressAccess() {
157 if (javaNetInetAddressAccess == null)
158 unsafe.ensureClassInitialized(java.net.InetAddress.class);
159 return javaNetInetAddressAccess;
160 }
161
162 public static void setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a) {
163 javaNetHttpCookieAccess = a;
164 }
165
166 public static JavaNetHttpCookieAccess getJavaNetHttpCookieAccess() {
167 if (javaNetHttpCookieAccess == null)
168 unsafe.ensureClassInitialized(java.net.HttpCookie.class);
169 return javaNetHttpCookieAccess;
170 }
171
172 public static void setJavaNioAccess(JavaNioAccess jna) {
173 javaNioAccess = jna;
174 }
175
176 public static JavaNioAccess getJavaNioAccess() {
177 if (javaNioAccess == null) {
178 // Ensure java.nio.Buffer is initialized, which provides the
179 // shared secret.
180 unsafe.ensureClassInitialized(java.nio.Buffer.class);
181 }
182 return javaNioAccess;
183 }
184
185 public static void setJavaIOAccess(JavaIOAccess jia) {
186 javaIOAccess = jia;
187 }
188
189 public static JavaIOAccess getJavaIOAccess() {
190 if (javaIOAccess == null) {
191 unsafe.ensureClassInitialized(Console.class);
192 }
193 return javaIOAccess;
194 }
195
196 public static void setJavaIOFileDescriptorAccess(JavaIOFileDescriptorAccess jiofda) {
197 javaIOFileDescriptorAccess = jiofda;
198 }
199
200 public static JavaIOFilePermissionAccess getJavaIOFilePermissionAccess() {
201 if (javaIOFilePermissionAccess == null)
202 unsafe.ensureClassInitialized(FilePermission.class);
203
204 return javaIOFilePermissionAccess;
205 }
206
207 public static void setJavaIOFilePermissionAccess(JavaIOFilePermissionAccess jiofpa) {
208 javaIOFilePermissionAccess = jiofpa;
209 }
210
211 public static JavaIOFileDescriptorAccess getJavaIOFileDescriptorAccess() {
212 if (javaIOFileDescriptorAccess == null)
213 unsafe.ensureClassInitialized(FileDescriptor.class);
214
215 return javaIOFileDescriptorAccess;
216 }
217
218 public static void setJavaSecurityAccess(JavaSecurityAccess jsa) {
219 javaSecurityAccess = jsa;
220 }
221
222 public static JavaSecurityAccess getJavaSecurityAccess() {
223 if (javaSecurityAccess == null) {
224 unsafe.ensureClassInitialized(ProtectionDomain.class);
225 }
226 return javaSecurityAccess;
227 }
228
229 public static JavaUtilZipFileAccess getJavaUtilZipFileAccess() {
230 if (javaUtilZipFileAccess == null)
231 unsafe.ensureClassInitialized(java.util.zip.ZipFile.class);
232 return javaUtilZipFileAccess;
233 }
234
235 public static void setJavaUtilZipFileAccess(JavaUtilZipFileAccess access) {
236 javaUtilZipFileAccess = access;
237 }
238
239 public static void setJavaAWTAccess(JavaAWTAccess jaa) {
240 javaAWTAccess = jaa;
241 }
242
243 public static JavaAWTAccess getJavaAWTAccess() {
244 // this may return null in which case calling code needs to
245 // provision for.
246 return javaAWTAccess;
247 }
248
249 public static void setJavaAWTFontAccess(JavaAWTFontAccess jafa) {
250 javaAWTFontAccess = jafa;
251 }
252
253 public static JavaAWTFontAccess getJavaAWTFontAccess() {
254 // this may return null in which case calling code needs to
255 // provision for.
256 return javaAWTFontAccess;
257 }
258
259 public static JavaBeansAccess getJavaBeansAccess() {
260 return javaBeansAccess;
261 }
262
263 public static void setJavaBeansAccess(JavaBeansAccess access) {
264 javaBeansAccess = access;
265 }
266
267 public static JavaUtilResourceBundleAccess getJavaUtilResourceBundleAccess() {
268 if (javaUtilResourceBundleAccess == null)
269 unsafe.ensureClassInitialized(ResourceBundle.class);
270 return javaUtilResourceBundleAccess;
271 }
272
273 public static void setJavaUtilResourceBundleAccess(JavaUtilResourceBundleAccess access) {
274 javaUtilResourceBundleAccess = access;
275 }
276
277 public static JavaObjectInputStreamAccess getJavaObjectInputStreamAccess() {
278 if (javaObjectInputStreamAccess == null) {
279 unsafe.ensureClassInitialized(ObjectInputStream.class);
280 }
281 return javaObjectInputStreamAccess;
282 }
283
284 public static void setJavaObjectInputStreamAccess(JavaObjectInputStreamAccess access) {
285 javaObjectInputStreamAccess = access;
286 }
287
288 public static JavaObjectInputFilterAccess getJavaObjectInputFilterAccess() {
289 if (javaObjectInputFilterAccess == null) {
290 unsafe.ensureClassInitialized(ObjectInputFilter.Config.class);
291 }
292 return javaObjectInputFilterAccess;
293 }
294
295 public static void setJavaObjectInputFilterAccess(JavaObjectInputFilterAccess access) {
296 javaObjectInputFilterAccess = access;
297 }
298
299 public static void setJavaIORandomAccessFileAccess(JavaIORandomAccessFileAccess jirafa) {
300 javaIORandomAccessFileAccess = jirafa;
301 }
302
303 public static JavaIORandomAccessFileAccess getJavaIORandomAccessFileAccess() {
304 if (javaIORandomAccessFileAccess == null) {
305 unsafe.ensureClassInitialized(RandomAccessFile.class);
306 }
307 return javaIORandomAccessFileAccess;
308 }
309
310 public static void setJavaSecuritySignatureAccess(JavaSecuritySignatureAccess jssa) {
311 javaSecuritySignatureAccess = jssa;
312 }
313
314 public static JavaSecuritySignatureAccess getJavaSecuritySignatureAccess() {
315 if (javaSecuritySignatureAccess == null) {
316 unsafe.ensureClassInitialized(Signature.class);
317 }
318 return javaSecuritySignatureAccess;
319 }
320
321 public static void setJavaxCryptoSealedObjectAccess(JavaxCryptoSealedObjectAccess jcsoa) {
322 javaxCryptoSealedObjectAccess = jcsoa;
323 }
324
325 public static JavaxCryptoSealedObjectAccess getJavaxCryptoSealedObjectAccess() {
326 if (javaxCryptoSealedObjectAccess == null) {
327 unsafe.ensureClassInitialized(SealedObject.class);
328 }
329 return javaxCryptoSealedObjectAccess;
330 }
331 }