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.invoke.MethodHandles; 31 import java.lang.module.ModuleDescriptor; 32 import java.util.ResourceBundle; 33 import java.util.jar.JarFile; 34 import java.io.Console; 35 import java.io.FileDescriptor; 36 import java.io.FilePermission; 37 import java.io.ObjectInputStream; 38 import java.io.RandomAccessFile; 39 import java.security.ProtectionDomain; 40 import java.security.Signature; 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 MethodHandles.Lookup lookup = MethodHandles.lookup(); 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 JavaObjectInputStreamReadString javaObjectInputStreamReadString; 66 private static JavaObjectInputStreamAccess javaObjectInputStreamAccess; 67 private static JavaObjectInputFilterAccess javaObjectInputFilterAccess; 68 private static JavaNetInetAddressAccess javaNetInetAddressAccess; 69 private static JavaNetHttpCookieAccess javaNetHttpCookieAccess; 70 private static JavaNetUriAccess javaNetUriAccess; 71 private static JavaNetURLAccess javaNetURLAccess; 72 private static JavaNioAccess javaNioAccess; 73 private static JavaUtilJarAccess javaUtilJarAccess; 74 private static JavaUtilZipFileAccess javaUtilZipFileAccess; 75 private static JavaUtilResourceBundleAccess javaUtilResourceBundleAccess; 76 private static JavaSecurityAccess javaSecurityAccess; 77 private static JavaSecuritySignatureAccess javaSecuritySignatureAccess; 78 private static JavaxCryptoSealedObjectAccess javaxCryptoSealedObjectAccess; 79 javaUtilJarAccess()80 public static JavaUtilJarAccess javaUtilJarAccess() { 81 if (javaUtilJarAccess == null) { 82 // Ensure JarFile is initialized; we know that this class 83 // provides the shared secret 84 ensureClassInitialized(JarFile.class); 85 } 86 return javaUtilJarAccess; 87 } 88 setJavaUtilJarAccess(JavaUtilJarAccess access)89 public static void setJavaUtilJarAccess(JavaUtilJarAccess access) { 90 javaUtilJarAccess = access; 91 } 92 setJavaLangAccess(JavaLangAccess jla)93 public static void setJavaLangAccess(JavaLangAccess jla) { 94 javaLangAccess = jla; 95 } 96 getJavaLangAccess()97 public static JavaLangAccess getJavaLangAccess() { 98 return javaLangAccess; 99 } 100 setJavaLangInvokeAccess(JavaLangInvokeAccess jlia)101 public static void setJavaLangInvokeAccess(JavaLangInvokeAccess jlia) { 102 javaLangInvokeAccess = jlia; 103 } 104 getJavaLangInvokeAccess()105 public static JavaLangInvokeAccess getJavaLangInvokeAccess() { 106 if (javaLangInvokeAccess == null) { 107 try { 108 Class.forName("java.lang.invoke.MethodHandleImpl", true, null); 109 } catch (ClassNotFoundException e) {}; 110 } 111 return javaLangInvokeAccess; 112 } 113 setJavaLangModuleAccess(JavaLangModuleAccess jlrma)114 public static void setJavaLangModuleAccess(JavaLangModuleAccess jlrma) { 115 javaLangModuleAccess = jlrma; 116 } 117 getJavaLangModuleAccess()118 public static JavaLangModuleAccess getJavaLangModuleAccess() { 119 if (javaLangModuleAccess == null) { 120 ensureClassInitialized(ModuleDescriptor.class); 121 } 122 return javaLangModuleAccess; 123 } 124 setJavaLangRefAccess(JavaLangRefAccess jlra)125 public static void setJavaLangRefAccess(JavaLangRefAccess jlra) { 126 javaLangRefAccess = jlra; 127 } 128 getJavaLangRefAccess()129 public static JavaLangRefAccess getJavaLangRefAccess() { 130 return javaLangRefAccess; 131 } 132 setJavaLangReflectAccess(JavaLangReflectAccess jlra)133 public static void setJavaLangReflectAccess(JavaLangReflectAccess jlra) { 134 javaLangReflectAccess = jlra; 135 } 136 getJavaLangReflectAccess()137 public static JavaLangReflectAccess getJavaLangReflectAccess() { 138 return javaLangReflectAccess; 139 } 140 setJavaNetUriAccess(JavaNetUriAccess jnua)141 public static void setJavaNetUriAccess(JavaNetUriAccess jnua) { 142 javaNetUriAccess = jnua; 143 } 144 getJavaNetUriAccess()145 public static JavaNetUriAccess getJavaNetUriAccess() { 146 if (javaNetUriAccess == null) 147 ensureClassInitialized(java.net.URI.class); 148 return javaNetUriAccess; 149 } 150 setJavaNetURLAccess(JavaNetURLAccess jnua)151 public static void setJavaNetURLAccess(JavaNetURLAccess jnua) { 152 javaNetURLAccess = jnua; 153 } 154 getJavaNetURLAccess()155 public static JavaNetURLAccess getJavaNetURLAccess() { 156 if (javaNetURLAccess == null) 157 ensureClassInitialized(java.net.URL.class); 158 return javaNetURLAccess; 159 } 160 setJavaNetInetAddressAccess(JavaNetInetAddressAccess jna)161 public static void setJavaNetInetAddressAccess(JavaNetInetAddressAccess jna) { 162 javaNetInetAddressAccess = jna; 163 } 164 getJavaNetInetAddressAccess()165 public static JavaNetInetAddressAccess getJavaNetInetAddressAccess() { 166 if (javaNetInetAddressAccess == null) 167 ensureClassInitialized(java.net.InetAddress.class); 168 return javaNetInetAddressAccess; 169 } 170 setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a)171 public static void setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a) { 172 javaNetHttpCookieAccess = a; 173 } 174 getJavaNetHttpCookieAccess()175 public static JavaNetHttpCookieAccess getJavaNetHttpCookieAccess() { 176 if (javaNetHttpCookieAccess == null) 177 ensureClassInitialized(java.net.HttpCookie.class); 178 return javaNetHttpCookieAccess; 179 } 180 setJavaNioAccess(JavaNioAccess jna)181 public static void setJavaNioAccess(JavaNioAccess jna) { 182 javaNioAccess = jna; 183 } 184 getJavaNioAccess()185 public static JavaNioAccess getJavaNioAccess() { 186 if (javaNioAccess == null) { 187 // Ensure java.nio.Buffer is initialized, which provides the 188 // shared secret. 189 ensureClassInitialized(java.nio.Buffer.class); 190 } 191 return javaNioAccess; 192 } 193 setJavaIOAccess(JavaIOAccess jia)194 public static void setJavaIOAccess(JavaIOAccess jia) { 195 javaIOAccess = jia; 196 } 197 getJavaIOAccess()198 public static JavaIOAccess getJavaIOAccess() { 199 if (javaIOAccess == null) { 200 ensureClassInitialized(Console.class); 201 } 202 return javaIOAccess; 203 } 204 setJavaIOFileDescriptorAccess(JavaIOFileDescriptorAccess jiofda)205 public static void setJavaIOFileDescriptorAccess(JavaIOFileDescriptorAccess jiofda) { 206 javaIOFileDescriptorAccess = jiofda; 207 } 208 getJavaIOFilePermissionAccess()209 public static JavaIOFilePermissionAccess getJavaIOFilePermissionAccess() { 210 if (javaIOFilePermissionAccess == null) 211 ensureClassInitialized(FilePermission.class); 212 213 return javaIOFilePermissionAccess; 214 } 215 setJavaIOFilePermissionAccess(JavaIOFilePermissionAccess jiofpa)216 public static void setJavaIOFilePermissionAccess(JavaIOFilePermissionAccess jiofpa) { 217 javaIOFilePermissionAccess = jiofpa; 218 } 219 getJavaIOFileDescriptorAccess()220 public static JavaIOFileDescriptorAccess getJavaIOFileDescriptorAccess() { 221 if (javaIOFileDescriptorAccess == null) 222 ensureClassInitialized(FileDescriptor.class); 223 224 return javaIOFileDescriptorAccess; 225 } 226 setJavaSecurityAccess(JavaSecurityAccess jsa)227 public static void setJavaSecurityAccess(JavaSecurityAccess jsa) { 228 javaSecurityAccess = jsa; 229 } 230 getJavaSecurityAccess()231 public static JavaSecurityAccess getJavaSecurityAccess() { 232 if (javaSecurityAccess == null) { 233 ensureClassInitialized(ProtectionDomain.class); 234 } 235 return javaSecurityAccess; 236 } 237 getJavaUtilZipFileAccess()238 public static JavaUtilZipFileAccess getJavaUtilZipFileAccess() { 239 if (javaUtilZipFileAccess == null) 240 ensureClassInitialized(java.util.zip.ZipFile.class); 241 return javaUtilZipFileAccess; 242 } 243 setJavaUtilZipFileAccess(JavaUtilZipFileAccess access)244 public static void setJavaUtilZipFileAccess(JavaUtilZipFileAccess access) { 245 javaUtilZipFileAccess = access; 246 } 247 setJavaAWTAccess(JavaAWTAccess jaa)248 public static void setJavaAWTAccess(JavaAWTAccess jaa) { 249 javaAWTAccess = jaa; 250 } 251 getJavaAWTAccess()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 setJavaAWTFontAccess(JavaAWTFontAccess jafa)258 public static void setJavaAWTFontAccess(JavaAWTFontAccess jafa) { 259 javaAWTFontAccess = jafa; 260 } 261 getJavaAWTFontAccess()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 getJavaBeansAccess()268 public static JavaBeansAccess getJavaBeansAccess() { 269 return javaBeansAccess; 270 } 271 setJavaBeansAccess(JavaBeansAccess access)272 public static void setJavaBeansAccess(JavaBeansAccess access) { 273 javaBeansAccess = access; 274 } 275 getJavaUtilResourceBundleAccess()276 public static JavaUtilResourceBundleAccess getJavaUtilResourceBundleAccess() { 277 if (javaUtilResourceBundleAccess == null) 278 ensureClassInitialized(ResourceBundle.class); 279 return javaUtilResourceBundleAccess; 280 } 281 setJavaUtilResourceBundleAccess(JavaUtilResourceBundleAccess access)282 public static void setJavaUtilResourceBundleAccess(JavaUtilResourceBundleAccess access) { 283 javaUtilResourceBundleAccess = access; 284 } 285 getJavaObjectInputStreamReadString()286 public static JavaObjectInputStreamReadString getJavaObjectInputStreamReadString() { 287 if (javaObjectInputStreamReadString == null) { 288 ensureClassInitialized(ObjectInputStream.class); 289 } 290 return javaObjectInputStreamReadString; 291 } 292 setJavaObjectInputStreamReadString(JavaObjectInputStreamReadString access)293 public static void setJavaObjectInputStreamReadString(JavaObjectInputStreamReadString access) { 294 javaObjectInputStreamReadString = access; 295 } 296 getJavaObjectInputStreamAccess()297 public static JavaObjectInputStreamAccess getJavaObjectInputStreamAccess() { 298 if (javaObjectInputStreamAccess == null) { 299 ensureClassInitialized(ObjectInputStream.class); 300 } 301 return javaObjectInputStreamAccess; 302 } 303 setJavaObjectInputStreamAccess(JavaObjectInputStreamAccess access)304 public static void setJavaObjectInputStreamAccess(JavaObjectInputStreamAccess access) { 305 javaObjectInputStreamAccess = access; 306 } 307 getJavaObjectInputFilterAccess()308 public static JavaObjectInputFilterAccess getJavaObjectInputFilterAccess() { 309 if (javaObjectInputFilterAccess == null) { 310 ensureClassInitialized(ObjectInputFilter.Config.class); 311 } 312 return javaObjectInputFilterAccess; 313 } 314 setJavaObjectInputFilterAccess(JavaObjectInputFilterAccess access)315 public static void setJavaObjectInputFilterAccess(JavaObjectInputFilterAccess access) { 316 javaObjectInputFilterAccess = access; 317 } 318 setJavaIORandomAccessFileAccess(JavaIORandomAccessFileAccess jirafa)319 public static void setJavaIORandomAccessFileAccess(JavaIORandomAccessFileAccess jirafa) { 320 javaIORandomAccessFileAccess = jirafa; 321 } 322 getJavaIORandomAccessFileAccess()323 public static JavaIORandomAccessFileAccess getJavaIORandomAccessFileAccess() { 324 if (javaIORandomAccessFileAccess == null) { 325 ensureClassInitialized(RandomAccessFile.class); 326 } 327 return javaIORandomAccessFileAccess; 328 } 329 setJavaSecuritySignatureAccess(JavaSecuritySignatureAccess jssa)330 public static void setJavaSecuritySignatureAccess(JavaSecuritySignatureAccess jssa) { 331 javaSecuritySignatureAccess = jssa; 332 } 333 getJavaSecuritySignatureAccess()334 public static JavaSecuritySignatureAccess getJavaSecuritySignatureAccess() { 335 if (javaSecuritySignatureAccess == null) { 336 ensureClassInitialized(Signature.class); 337 } 338 return javaSecuritySignatureAccess; 339 } 340 setJavaxCryptoSealedObjectAccess(JavaxCryptoSealedObjectAccess jcsoa)341 public static void setJavaxCryptoSealedObjectAccess(JavaxCryptoSealedObjectAccess jcsoa) { 342 javaxCryptoSealedObjectAccess = jcsoa; 343 } 344 getJavaxCryptoSealedObjectAccess()345 public static JavaxCryptoSealedObjectAccess getJavaxCryptoSealedObjectAccess() { 346 if (javaxCryptoSealedObjectAccess == null) { 347 ensureClassInitialized(SealedObject.class); 348 } 349 return javaxCryptoSealedObjectAccess; 350 } 351 ensureClassInitialized(Class<?> c)352 private static void ensureClassInitialized(Class<?> c) { 353 try { 354 MethodHandles.lookup().ensureInitialized(c); 355 } catch (IllegalAccessException e) {} 356 } 357 } 358