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 JavaAWTAccess javaAWTAccess;
54 private static JavaAWTFontAccess javaAWTFontAccess;
55 private static JavaBeansAccess javaBeansAccess;
56 private static JavaLangAccess javaLangAccess;
57 private static JavaLangInvokeAccess javaLangInvokeAccess;
58 private static JavaLangModuleAccess javaLangModuleAccess;
59 private static JavaLangRefAccess javaLangRefAccess;
60 private static JavaLangReflectAccess javaLangReflectAccess;
61 private static JavaIOAccess javaIOAccess;
62 private static JavaIOFileDescriptorAccess javaIOFileDescriptorAccess;
63 private static JavaIOFilePermissionAccess javaIOFilePermissionAccess;
64 private static JavaIORandomAccessFileAccess javaIORandomAccessFileAccess;
65 private static JavaObjectInputStreamAccess javaObjectInputStreamAccess;
66 private static JavaObjectInputFilterAccess javaObjectInputFilterAccess;
67 private static JavaNetInetAddressAccess javaNetInetAddressAccess;
68 private static JavaNetHttpCookieAccess javaNetHttpCookieAccess;
69 private static JavaNetUriAccess javaNetUriAccess;
70 private static JavaNetURLAccess javaNetURLAccess;
71 private static JavaNioAccess javaNioAccess;
72 private static JavaUtilJarAccess javaUtilJarAccess;
73 private static JavaUtilZipFileAccess javaUtilZipFileAccess;
74 private static JavaUtilResourceBundleAccess javaUtilResourceBundleAccess;
75 private static JavaSecurityAccess javaSecurityAccess;
76 private static JavaSecuritySignatureAccess javaSecuritySignatureAccess;
77 private static JavaxCryptoSealedObjectAccess javaxCryptoSealedObjectAccess;
78
79 public static JavaUtilJarAccess javaUtilJarAccess() {
80 if (javaUtilJarAccess == null) {
81 // Ensure JarFile is initialized; we know that this class
82 // provides the shared secret
83 unsafe.ensureClassInitialized(JarFile.class);
84 }
85 return javaUtilJarAccess;
86 }
87
88 public static void setJavaUtilJarAccess(JavaUtilJarAccess access) {
89 javaUtilJarAccess = access;
90 }
91
92 public static void setJavaLangAccess(JavaLangAccess jla) {
93 javaLangAccess = jla;
94 }
95
96 public static JavaLangAccess getJavaLangAccess() {
97 return javaLangAccess;
98 }
99
100 public static void setJavaLangInvokeAccess(JavaLangInvokeAccess jlia) {
101 javaLangInvokeAccess = jlia;
102 }
103
104 public static JavaLangInvokeAccess getJavaLangInvokeAccess() {
105 if (javaLangInvokeAccess == null) {
106 try {
107 Class<?> c = Class.forName("java.lang.invoke.MethodHandleImpl");
108 unsafe.ensureClassInitialized(c);
109 } catch (ClassNotFoundException e) {};
110 }
111 return javaLangInvokeAccess;
112 }
113
114 public static void setJavaLangModuleAccess(JavaLangModuleAccess jlrma) {
115 javaLangModuleAccess = jlrma;
116 }
117
118 public static JavaLangModuleAccess getJavaLangModuleAccess() {
119 if (javaLangModuleAccess == null) {
120 unsafe.ensureClassInitialized(ModuleDescriptor.class);
121 }
122 return javaLangModuleAccess;
123 }
124
125 public static void setJavaLangRefAccess(JavaLangRefAccess jlra) {
126 javaLangRefAccess = jlra;
127 }
128
129 public static JavaLangRefAccess getJavaLangRefAccess() {
130 return javaLangRefAccess;
131 }
132
133 public static void setJavaLangReflectAccess(JavaLangReflectAccess jlra) {
134 javaLangReflectAccess = jlra;
135 }
136
137 public static JavaLangReflectAccess getJavaLangReflectAccess() {
138 return javaLangReflectAccess;
139 }
140
141 public static void setJavaNetUriAccess(JavaNetUriAccess jnua) {
142 javaNetUriAccess = jnua;
143 }
144
145 public static JavaNetUriAccess getJavaNetUriAccess() {
146 if (javaNetUriAccess == null)
147 unsafe.ensureClassInitialized(java.net.URI.class);
148 return javaNetUriAccess;
149 }
150
151 public static void setJavaNetURLAccess(JavaNetURLAccess jnua) {
152 javaNetURLAccess = jnua;
153 }
154
155 public static JavaNetURLAccess getJavaNetURLAccess() {
156 if (javaNetURLAccess == null)
157 unsafe.ensureClassInitialized(java.net.URL.class);
158 return javaNetURLAccess;
159 }
160
161 public static void setJavaNetInetAddressAccess(JavaNetInetAddressAccess jna) {
162 javaNetInetAddressAccess = jna;
163 }
164
165 public static JavaNetInetAddressAccess getJavaNetInetAddressAccess() {
166 if (javaNetInetAddressAccess == null)
167 unsafe.ensureClassInitialized(java.net.InetAddress.class);
168 return javaNetInetAddressAccess;
169 }
170
171 public static void setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a) {
172 javaNetHttpCookieAccess = a;
173 }
174
175 public static JavaNetHttpCookieAccess getJavaNetHttpCookieAccess() {
176 if (javaNetHttpCookieAccess == null)
177 unsafe.ensureClassInitialized(java.net.HttpCookie.class);
178 return javaNetHttpCookieAccess;
179 }
180
181 public static void setJavaNioAccess(JavaNioAccess jna) {
182 javaNioAccess = jna;
183 }
184
185 public static JavaNioAccess getJavaNioAccess() {
186 if (javaNioAccess == null) {
187 // Ensure java.nio.Buffer is initialized, which provides the
188 // shared secret.
189 unsafe.ensureClassInitialized(java.nio.Buffer.class);
190 }
191 return javaNioAccess;
192 }
193
194 public static void setJavaIOAccess(JavaIOAccess jia) {
195 javaIOAccess = jia;
196 }
197
198 public static JavaIOAccess getJavaIOAccess() {
199 if (javaIOAccess == null) {
200 unsafe.ensureClassInitialized(Console.class);
201 }
202 return javaIOAccess;
203 }
204
205 public static void setJavaIOFileDescriptorAccess(JavaIOFileDescriptorAccess jiofda) {
206 javaIOFileDescriptorAccess = jiofda;
207 }
208
209 public static JavaIOFilePermissionAccess getJavaIOFilePermissionAccess() {
210 if (javaIOFilePermissionAccess == null)
211 unsafe.ensureClassInitialized(FilePermission.class);
212
213 return javaIOFilePermissionAccess;
214 }
215
216 public static void setJavaIOFilePermissionAccess(JavaIOFilePermissionAccess jiofpa) {
217 javaIOFilePermissionAccess = jiofpa;
218 }
219
220 public static JavaIOFileDescriptorAccess getJavaIOFileDescriptorAccess() {
221 if (javaIOFileDescriptorAccess == null)
222 unsafe.ensureClassInitialized(FileDescriptor.class);
223
224 return javaIOFileDescriptorAccess;
225 }
226
227 public static void setJavaSecurityAccess(JavaSecurityAccess jsa) {
228 javaSecurityAccess = jsa;
229 }
230
231 public static JavaSecurityAccess getJavaSecurityAccess() {
232 if (javaSecurityAccess == null) {
233 unsafe.ensureClassInitialized(ProtectionDomain.class);
234 }
235 return javaSecurityAccess;
236 }
237
238 public static JavaUtilZipFileAccess getJavaUtilZipFileAccess() {
239 if (javaUtilZipFileAccess == null)
240 unsafe.ensureClassInitialized(java.util.zip.ZipFile.class);
241 return javaUtilZipFileAccess;
242 }
243
244 public static void setJavaUtilZipFileAccess(JavaUtilZipFileAccess access) {
245 javaUtilZipFileAccess = access;
246 }
247
248 public static void setJavaAWTAccess(JavaAWTAccess jaa) {
249 javaAWTAccess = jaa;
250 }
251
252 public static JavaAWTAccess getJavaAWTAccess() {
253 // this may return null in which case calling code needs to
254 // provision for.
255 return javaAWTAccess;
256 }
257
258 public static void setJavaAWTFontAccess(JavaAWTFontAccess jafa) {
259 javaAWTFontAccess = jafa;
260 }
261
262 public static JavaAWTFontAccess getJavaAWTFontAccess() {
263 // this may return null in which case calling code needs to
264 // provision for.
265 return javaAWTFontAccess;
266 }
267
268 public static JavaBeansAccess getJavaBeansAccess() {
269 return javaBeansAccess;
270 }
271
272 public static void setJavaBeansAccess(JavaBeansAccess access) {
273 javaBeansAccess = access;
274 }
275
276 public static JavaUtilResourceBundleAccess getJavaUtilResourceBundleAccess() {
277 if (javaUtilResourceBundleAccess == null)
278 unsafe.ensureClassInitialized(ResourceBundle.class);
279 return javaUtilResourceBundleAccess;
280 }
281
282 public static void setJavaUtilResourceBundleAccess(JavaUtilResourceBundleAccess access) {
283 javaUtilResourceBundleAccess = access;
284 }
285
286 public static JavaObjectInputStreamAccess getJavaObjectInputStreamAccess() {
287 if (javaObjectInputStreamAccess == null) {
288 unsafe.ensureClassInitialized(ObjectInputStream.class);
289 }
290 return javaObjectInputStreamAccess;
291 }
292
293 public static void setJavaObjectInputStreamAccess(JavaObjectInputStreamAccess access) {
294 javaObjectInputStreamAccess = access;
295 }
296
297 public static JavaObjectInputFilterAccess getJavaObjectInputFilterAccess() {
298 if (javaObjectInputFilterAccess == null) {
299 unsafe.ensureClassInitialized(ObjectInputFilter.Config.class);
300 }
301 return javaObjectInputFilterAccess;
302 }
303
304 public static void setJavaObjectInputFilterAccess(JavaObjectInputFilterAccess access) {
305 javaObjectInputFilterAccess = access;
306 }
307
308 public static void setJavaIORandomAccessFileAccess(JavaIORandomAccessFileAccess jirafa) {
309 javaIORandomAccessFileAccess = jirafa;
310 }
311
312 public static JavaIORandomAccessFileAccess getJavaIORandomAccessFileAccess() {
313 if (javaIORandomAccessFileAccess == null) {
314 unsafe.ensureClassInitialized(RandomAccessFile.class);
315 }
316 return javaIORandomAccessFileAccess;
317 }
318
319 public static void setJavaSecuritySignatureAccess(JavaSecuritySignatureAccess jssa) {
320 javaSecuritySignatureAccess = jssa;
321 }
322
323 public static JavaSecuritySignatureAccess getJavaSecuritySignatureAccess() {
324 if (javaSecuritySignatureAccess == null) {
325 unsafe.ensureClassInitialized(Signature.class);
326 }
327 return javaSecuritySignatureAccess;
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 }