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 JavaNetSocketAccess javaNetSocketAccess; 70 private static JavaNetUriAccess javaNetUriAccess; 71 private static JavaNetURLAccess javaNetURLAccess; 72 private static JavaNetURLClassLoaderAccess javaNetURLClassLoaderAccess; 73 private static JavaNioAccess javaNioAccess; 74 private static JavaUtilJarAccess javaUtilJarAccess; 75 private static JavaUtilZipFileAccess javaUtilZipFileAccess; 76 private static JavaUtilResourceBundleAccess javaUtilResourceBundleAccess; 77 private static JavaSecurityAccess javaSecurityAccess; 78 private static JavaSecuritySignatureAccess javaSecuritySignatureAccess; 79 private static JavaxCryptoSealedObjectAccess javaxCryptoSealedObjectAccess; 80 81 public static JavaUtilJarAccess javaUtilJarAccess() { 82 if (javaUtilJarAccess == null) { 83 // Ensure JarFile is initialized; we know that this class 84 // provides the shared secret 85 unsafe.ensureClassInitialized(JarFile.class); 86 } 87 return javaUtilJarAccess; 88 } 89 90 public static void setJavaUtilJarAccess(JavaUtilJarAccess access) { 91 javaUtilJarAccess = access; 92 } 93 94 public static void setJavaLangAccess(JavaLangAccess jla) { 95 javaLangAccess = jla; 96 } 97 98 public static JavaLangAccess getJavaLangAccess() { 99 return javaLangAccess; 100 } 101 102 public static void setJavaLangInvokeAccess(JavaLangInvokeAccess jlia) { 103 javaLangInvokeAccess = jlia; 104 } 105 106 public static JavaLangInvokeAccess getJavaLangInvokeAccess() { 107 if (javaLangInvokeAccess == null) { 108 try { 109 Class<?> c = Class.forName("java.lang.invoke.MethodHandleImpl"); 110 unsafe.ensureClassInitialized(c); 111 } catch (ClassNotFoundException e) {}; 112 } 113 return javaLangInvokeAccess; 114 } 115 116 public static void setJavaLangModuleAccess(JavaLangModuleAccess jlrma) { 117 javaLangModuleAccess = jlrma; 118 } 119 120 public static JavaLangModuleAccess getJavaLangModuleAccess() { 121 if (javaLangModuleAccess == null) { 122 unsafe.ensureClassInitialized(ModuleDescriptor.class); 123 } 124 return javaLangModuleAccess; 125 } 126 127 public static void setJavaLangRefAccess(JavaLangRefAccess jlra) { 128 javaLangRefAccess = jlra; 129 } 130 131 public static JavaLangRefAccess getJavaLangRefAccess() { 132 return javaLangRefAccess; 133 } 134 135 public static void setJavaLangReflectAccess(JavaLangReflectAccess jlra) { 136 javaLangReflectAccess = jlra; 137 } 138 139 public static JavaLangReflectAccess getJavaLangReflectAccess() { 140 return javaLangReflectAccess; 141 } 142 143 public static void setJavaNetUriAccess(JavaNetUriAccess jnua) { 144 javaNetUriAccess = jnua; 145 } 146 147 public static JavaNetUriAccess getJavaNetUriAccess() { 148 if (javaNetUriAccess == null) 149 unsafe.ensureClassInitialized(java.net.URI.class); 150 return javaNetUriAccess; 151 } 152 153 public static void setJavaNetURLAccess(JavaNetURLAccess jnua) { 154 javaNetURLAccess = jnua; 155 } 156 157 public static JavaNetURLAccess getJavaNetURLAccess() { 158 if (javaNetURLAccess == null) 159 unsafe.ensureClassInitialized(java.net.URL.class); 160 return javaNetURLAccess; 161 } 162 163 public static void setJavaNetURLClassLoaderAccess(JavaNetURLClassLoaderAccess jnua) { 164 javaNetURLClassLoaderAccess = jnua; 165 } 166 167 public static JavaNetURLClassLoaderAccess getJavaNetURLClassLoaderAccess() { 168 if (javaNetURLClassLoaderAccess == null) 169 unsafe.ensureClassInitialized(java.net.URLClassLoader.class); 170 return javaNetURLClassLoaderAccess; 171 } 172 173 public static void setJavaNetInetAddressAccess(JavaNetInetAddressAccess jna) { 174 javaNetInetAddressAccess = jna; 175 } 176 177 public static JavaNetInetAddressAccess getJavaNetInetAddressAccess() { 178 if (javaNetInetAddressAccess == null) 179 unsafe.ensureClassInitialized(java.net.InetAddress.class); 180 return javaNetInetAddressAccess; 181 } 182 183 public static void setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a) { 184 javaNetHttpCookieAccess = a; 185 } 186 187 public static JavaNetHttpCookieAccess getJavaNetHttpCookieAccess() { 188 if (javaNetHttpCookieAccess == null) 189 unsafe.ensureClassInitialized(java.net.HttpCookie.class); 190 return javaNetHttpCookieAccess; 191 } 192 193 public static void setJavaNetSocketAccess(JavaNetSocketAccess jnsa) { 194 javaNetSocketAccess = jnsa; 195 } 196 197 public static JavaNetSocketAccess getJavaNetSocketAccess() { 198 if (javaNetSocketAccess == null) 199 unsafe.ensureClassInitialized(java.net.ServerSocket.class); 200 return javaNetSocketAccess; 201 } 202 203 public static void setJavaNioAccess(JavaNioAccess jna) { 204 javaNioAccess = jna; 205 } 206 207 public static JavaNioAccess getJavaNioAccess() { 208 if (javaNioAccess == null) { 209 // Ensure java.nio.Buffer is initialized, which provides the 210 // shared secret. 211 unsafe.ensureClassInitialized(java.nio.Buffer.class); 212 } 213 return javaNioAccess; 214 } 215 216 public static void setJavaIOAccess(JavaIOAccess jia) { 217 javaIOAccess = jia; 218 } 219 220 public static JavaIOAccess getJavaIOAccess() { 221 if (javaIOAccess == null) { 222 unsafe.ensureClassInitialized(Console.class); 223 } 224 return javaIOAccess; 225 } 226 227 public static void setJavaIOFileDescriptorAccess(JavaIOFileDescriptorAccess jiofda) { 228 javaIOFileDescriptorAccess = jiofda; 229 } 230 231 public static JavaIOFilePermissionAccess getJavaIOFilePermissionAccess() { 232 if (javaIOFilePermissionAccess == null) 233 unsafe.ensureClassInitialized(FilePermission.class); 234 235 return javaIOFilePermissionAccess; 236 } 237 238 public static void setJavaIOFilePermissionAccess(JavaIOFilePermissionAccess jiofpa) { 239 javaIOFilePermissionAccess = jiofpa; 240 } 241 242 public static JavaIOFileDescriptorAccess getJavaIOFileDescriptorAccess() { 243 if (javaIOFileDescriptorAccess == null) 244 unsafe.ensureClassInitialized(FileDescriptor.class); 245 246 return javaIOFileDescriptorAccess; 247 } 248 249 public static void setJavaSecurityAccess(JavaSecurityAccess jsa) { 250 javaSecurityAccess = jsa; 251 } 252 253 public static JavaSecurityAccess getJavaSecurityAccess() { 254 if (javaSecurityAccess == null) { 255 unsafe.ensureClassInitialized(ProtectionDomain.class); 256 } 257 return javaSecurityAccess; 258 } 259 260 public static JavaUtilZipFileAccess getJavaUtilZipFileAccess() { 261 if (javaUtilZipFileAccess == null) 262 unsafe.ensureClassInitialized(java.util.zip.ZipFile.class); 263 return javaUtilZipFileAccess; 264 } 265 266 public static void setJavaUtilZipFileAccess(JavaUtilZipFileAccess access) { 267 javaUtilZipFileAccess = access; 268 } 269 270 public static void setJavaAWTAccess(JavaAWTAccess jaa) { 271 javaAWTAccess = jaa; 272 } 273 274 public static JavaAWTAccess getJavaAWTAccess() { 275 // this may return null in which case calling code needs to 276 // provision for. 277 return javaAWTAccess; 278 } 279 280 public static void setJavaAWTFontAccess(JavaAWTFontAccess jafa) { 281 javaAWTFontAccess = jafa; 282 } 283 284 public static JavaAWTFontAccess getJavaAWTFontAccess() { 285 // this may return null in which case calling code needs to 286 // provision for. 287 return javaAWTFontAccess; 288 } 289 290 public static JavaBeansAccess getJavaBeansAccess() { 291 return javaBeansAccess; 292 } 293 294 public static void setJavaBeansAccess(JavaBeansAccess access) { 295 javaBeansAccess = access; 296 } 297 298 public static JavaUtilResourceBundleAccess getJavaUtilResourceBundleAccess() { 299 if (javaUtilResourceBundleAccess == null) 300 unsafe.ensureClassInitialized(ResourceBundle.class); 301 return javaUtilResourceBundleAccess; 302 } 303 304 public static void setJavaUtilResourceBundleAccess(JavaUtilResourceBundleAccess access) { 305 javaUtilResourceBundleAccess = access; 306 } 307 308 public static JavaObjectInputStreamAccess getJavaObjectInputStreamAccess() { 309 if (javaObjectInputStreamAccess == null) { 310 unsafe.ensureClassInitialized(ObjectInputStream.class); 311 } 312 return javaObjectInputStreamAccess; 313 } 314 315 public static void setJavaObjectInputStreamAccess(JavaObjectInputStreamAccess access) { 316 javaObjectInputStreamAccess = access; 317 } 318 319 public static JavaObjectInputFilterAccess getJavaObjectInputFilterAccess() { 320 if (javaObjectInputFilterAccess == null) { 321 unsafe.ensureClassInitialized(ObjectInputFilter.Config.class); 322 } 323 return javaObjectInputFilterAccess; 324 } 325 326 public static void setJavaObjectInputFilterAccess(JavaObjectInputFilterAccess access) { 327 javaObjectInputFilterAccess = access; 328 } 329 330 public static void setJavaIORandomAccessFileAccess(JavaIORandomAccessFileAccess jirafa) { 331 javaIORandomAccessFileAccess = jirafa; 332 } 333 334 public static JavaIORandomAccessFileAccess getJavaIORandomAccessFileAccess() { 335 if (javaIORandomAccessFileAccess == null) { 336 unsafe.ensureClassInitialized(RandomAccessFile.class); 337 } 338 return javaIORandomAccessFileAccess; 339 } 340 341 public static void setJavaSecuritySignatureAccess(JavaSecuritySignatureAccess jssa) { 342 javaSecuritySignatureAccess = jssa; 343 } 344 345 public static JavaSecuritySignatureAccess getJavaSecuritySignatureAccess() { 346 if (javaSecuritySignatureAccess == null) { 347 unsafe.ensureClassInitialized(Signature.class); 348 } 349 return javaSecuritySignatureAccess; 350 } 351 352 public static void setJavaxCryptoSealedObjectAccess(JavaxCryptoSealedObjectAccess jcsoa) { 353 javaxCryptoSealedObjectAccess = jcsoa; 354 } 355 356 public static JavaxCryptoSealedObjectAccess getJavaxCryptoSealedObjectAccess() { 357 if (javaxCryptoSealedObjectAccess == null) { 358 unsafe.ensureClassInitialized(SealedObject.class); 359 } 360 return javaxCryptoSealedObjectAccess; 361 } 362 }