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 JavaNetSocketAccess javaNetSocketAccess; 62 private static JavaNetUriAccess javaNetUriAccess; 63 private static JavaNetURLAccess javaNetURLAccess; 64 private static JavaNetURLClassLoaderAccess javaNetURLClassLoaderAccess; 65 private static JavaNioAccess javaNioAccess; 66 private static JavaIOFileDescriptorAccess javaIOFileDescriptorAccess; 67 private static JavaIOFilePermissionAccess javaIOFilePermissionAccess; 68 private static JavaSecurityAccess javaSecurityAccess; 69 private static JavaUtilZipFileAccess javaUtilZipFileAccess; 70 private static JavaUtilResourceBundleAccess javaUtilResourceBundleAccess; 71 private static JavaAWTAccess javaAWTAccess; 72 private static JavaAWTFontAccess javaAWTFontAccess; 73 private static JavaBeansAccess javaBeansAccess; 74 private static JavaObjectInputStreamAccess javaObjectInputStreamAccess; 75 private static JavaObjectInputFilterAccess javaObjectInputFilterAccess; 76 private static JavaIORandomAccessFileAccess javaIORandomAccessFileAccess; 77 private static JavaSecuritySignatureAccess javaSecuritySignatureAccess; 78 private static JavaxCryptoSealedObjectAccess javaxCryptoSealedObjectAccess; 79 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 unsafe.ensureClassInitialized(JarFile.class); 85 } 86 return javaUtilJarAccess; 87 } 88 89 public static void setJavaUtilJarAccess(JavaUtilJarAccess access) { 90 javaUtilJarAccess = access; 91 } 92 93 public static void setJavaLangAccess(JavaLangAccess jla) { 94 javaLangAccess = jla; 95 } 96 97 public static JavaLangAccess getJavaLangAccess() { 98 return javaLangAccess; 99 } 100 101 public static void setJavaLangInvokeAccess(JavaLangInvokeAccess jlia) { 102 javaLangInvokeAccess = jlia; 103 } 104 105 public static JavaLangInvokeAccess getJavaLangInvokeAccess() { 106 if (javaLangInvokeAccess == null) { 107 try { 108 Class<?> c = Class.forName("java.lang.invoke.MethodHandleImpl"); 109 unsafe.ensureClassInitialized(c); 110 } catch (ClassNotFoundException e) {}; 111 } 112 return javaLangInvokeAccess; 113 } 114 115 public static void setJavaLangModuleAccess(JavaLangModuleAccess jlrma) { 116 javaLangModuleAccess = jlrma; 117 } 118 119 public static JavaLangModuleAccess getJavaLangModuleAccess() { 120 if (javaLangModuleAccess == null) { 121 unsafe.ensureClassInitialized(ModuleDescriptor.class); 122 } 123 return javaLangModuleAccess; 124 } 125 126 public static void setJavaLangRefAccess(JavaLangRefAccess jlra) { 127 javaLangRefAccess = jlra; 128 } 129 130 public static JavaLangRefAccess getJavaLangRefAccess() { 131 return javaLangRefAccess; 132 } 133 134 public static void setJavaNetUriAccess(JavaNetUriAccess jnua) { 135 javaNetUriAccess = jnua; 136 } 137 138 public static JavaNetUriAccess getJavaNetUriAccess() { 139 if (javaNetUriAccess == null) 140 unsafe.ensureClassInitialized(java.net.URI.class); 141 return javaNetUriAccess; 142 } 143 144 public static void setJavaNetURLAccess(JavaNetURLAccess jnua) { 145 javaNetURLAccess = jnua; 146 } 147 148 public static JavaNetURLAccess getJavaNetURLAccess() { 149 if (javaNetURLAccess == null) 150 unsafe.ensureClassInitialized(java.net.URL.class); 151 return javaNetURLAccess; 152 } 153 154 public static void setJavaNetURLClassLoaderAccess(JavaNetURLClassLoaderAccess jnua) { 155 javaNetURLClassLoaderAccess = jnua; 156 } 157 158 public static JavaNetURLClassLoaderAccess getJavaNetURLClassLoaderAccess() { 159 if (javaNetURLClassLoaderAccess == null) 160 unsafe.ensureClassInitialized(java.net.URLClassLoader.class); 161 return javaNetURLClassLoaderAccess; 162 } 163 164 public static void setJavaNetInetAddressAccess(JavaNetInetAddressAccess jna) { 165 javaNetInetAddressAccess = jna; 166 } 167 168 public static JavaNetInetAddressAccess getJavaNetInetAddressAccess() { 169 if (javaNetInetAddressAccess == null) 170 unsafe.ensureClassInitialized(java.net.InetAddress.class); 171 return javaNetInetAddressAccess; 172 } 173 174 public static void setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a) { 175 javaNetHttpCookieAccess = a; 176 } 177 178 public static JavaNetHttpCookieAccess getJavaNetHttpCookieAccess() { 179 if (javaNetHttpCookieAccess == null) 180 unsafe.ensureClassInitialized(java.net.HttpCookie.class); 181 return javaNetHttpCookieAccess; 182 } 183 184 public static void setJavaNetSocketAccess(JavaNetSocketAccess jnsa) { 185 javaNetSocketAccess = jnsa; 186 } 187 188 public static JavaNetSocketAccess getJavaNetSocketAccess() { 189 if (javaNetSocketAccess == null) 190 unsafe.ensureClassInitialized(java.net.ServerSocket.class); 191 return javaNetSocketAccess; 192 } 193 194 public static void setJavaNioAccess(JavaNioAccess jna) { 195 javaNioAccess = jna; 196 } 197 198 public static JavaNioAccess getJavaNioAccess() { 199 if (javaNioAccess == null) { 200 // Ensure java.nio.Buffer is initialized, which provides the 201 // shared secret. 202 unsafe.ensureClassInitialized(java.nio.Buffer.class); 203 } 204 return javaNioAccess; 205 } 206 207 public static void setJavaIOAccess(JavaIOAccess jia) { 208 javaIOAccess = jia; 209 } 210 211 public static JavaIOAccess getJavaIOAccess() { 212 if (javaIOAccess == null) { 213 unsafe.ensureClassInitialized(Console.class); 214 } 215 return javaIOAccess; 216 } 217 218 public static void setJavaIOFileDescriptorAccess(JavaIOFileDescriptorAccess jiofda) { 219 javaIOFileDescriptorAccess = jiofda; 220 } 221 222 public static JavaIOFilePermissionAccess getJavaIOFilePermissionAccess() { 223 if (javaIOFilePermissionAccess == null) 224 unsafe.ensureClassInitialized(FilePermission.class); 225 226 return javaIOFilePermissionAccess; 227 } 228 229 public static void setJavaIOFilePermissionAccess(JavaIOFilePermissionAccess jiofpa) { 230 javaIOFilePermissionAccess = jiofpa; 231 } 232 233 public static JavaIOFileDescriptorAccess getJavaIOFileDescriptorAccess() { 234 if (javaIOFileDescriptorAccess == null) 235 unsafe.ensureClassInitialized(FileDescriptor.class); 236 237 return javaIOFileDescriptorAccess; 238 } 239 240 public static void setJavaSecurityAccess(JavaSecurityAccess jsa) { 241 javaSecurityAccess = jsa; 242 } 243 244 public static JavaSecurityAccess getJavaSecurityAccess() { 245 if (javaSecurityAccess == null) { 246 unsafe.ensureClassInitialized(ProtectionDomain.class); 247 } 248 return javaSecurityAccess; 249 } 250 251 public static JavaUtilZipFileAccess getJavaUtilZipFileAccess() { 252 if (javaUtilZipFileAccess == null) 253 unsafe.ensureClassInitialized(java.util.zip.ZipFile.class); 254 return javaUtilZipFileAccess; 255 } 256 257 public static void setJavaUtilZipFileAccess(JavaUtilZipFileAccess access) { 258 javaUtilZipFileAccess = access; 259 } 260 261 public static void setJavaAWTAccess(JavaAWTAccess jaa) { 262 javaAWTAccess = jaa; 263 } 264 265 public static JavaAWTAccess getJavaAWTAccess() { 266 // this may return null in which case calling code needs to 267 // provision for. 268 return javaAWTAccess; 269 } 270 271 public static void setJavaAWTFontAccess(JavaAWTFontAccess jafa) { 272 javaAWTFontAccess = jafa; 273 } 274 275 public static JavaAWTFontAccess getJavaAWTFontAccess() { 276 // this may return null in which case calling code needs to 277 // provision for. 278 return javaAWTFontAccess; 279 } 280 281 public static JavaBeansAccess getJavaBeansAccess() { 282 return javaBeansAccess; 283 } 284 285 public static void setJavaBeansAccess(JavaBeansAccess access) { 286 javaBeansAccess = access; 287 } 288 289 public static JavaUtilResourceBundleAccess getJavaUtilResourceBundleAccess() { 290 if (javaUtilResourceBundleAccess == null) 291 unsafe.ensureClassInitialized(ResourceBundle.class); 292 return javaUtilResourceBundleAccess; 293 } 294 295 public static void setJavaUtilResourceBundleAccess(JavaUtilResourceBundleAccess access) { 296 javaUtilResourceBundleAccess = access; 297 } 298 299 public static JavaObjectInputStreamAccess getJavaObjectInputStreamAccess() { 300 if (javaObjectInputStreamAccess == null) { 301 unsafe.ensureClassInitialized(ObjectInputStream.class); 302 } 303 return javaObjectInputStreamAccess; 304 } 305 306 public static void setJavaObjectInputStreamAccess(JavaObjectInputStreamAccess access) { 307 javaObjectInputStreamAccess = access; 308 } 309 310 public static JavaObjectInputFilterAccess getJavaObjectInputFilterAccess() { 311 if (javaObjectInputFilterAccess == null) { 312 unsafe.ensureClassInitialized(ObjectInputFilter.Config.class); 313 } 314 return javaObjectInputFilterAccess; 315 } 316 317 public static void setJavaObjectInputFilterAccess(JavaObjectInputFilterAccess access) { 318 javaObjectInputFilterAccess = access; 319 } 320 321 public static void setJavaIORandomAccessFileAccess(JavaIORandomAccessFileAccess jirafa) { 322 javaIORandomAccessFileAccess = jirafa; 323 } 324 325 public static JavaIORandomAccessFileAccess getJavaIORandomAccessFileAccess() { 326 if (javaIORandomAccessFileAccess == null) { 327 unsafe.ensureClassInitialized(RandomAccessFile.class); 328 } 329 return javaIORandomAccessFileAccess; 330 } 331 332 public static void setJavaSecuritySignatureAccess(JavaSecuritySignatureAccess jssa) { 333 javaSecuritySignatureAccess = jssa; 334 } 335 336 public static JavaSecuritySignatureAccess getJavaSecuritySignatureAccess() { 337 if (javaSecuritySignatureAccess == null) { 338 unsafe.ensureClassInitialized(Signature.class); 339 } 340 return javaSecuritySignatureAccess; 341 } 342 343 public static void setJavaxCryptoSealedObjectAccess(JavaxCryptoSealedObjectAccess jcsoa) { 344 javaxCryptoSealedObjectAccess = jcsoa; 345 } 346 347 public static JavaxCryptoSealedObjectAccess getJavaxCryptoSealedObjectAccess() { 348 if (javaxCryptoSealedObjectAccess == null) { 349 unsafe.ensureClassInitialized(SealedObject.class); 350 } 351 return javaxCryptoSealedObjectAccess; 352 } 353 }