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 JavaAWTFontAccess javaAWTFontAccess; 72 private static JavaBeansAccess javaBeansAccess; 73 private static JavaObjectInputStreamAccess javaObjectInputStreamAccess; 74 private static JavaObjectInputFilterAccess javaObjectInputFilterAccess; 75 private static JavaIORandomAccessFileAccess javaIORandomAccessFileAccess; 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 setJavaNetUriAccess(JavaNetUriAccess jnua) { 134 javaNetUriAccess = jnua; 135 } 136 137 public static JavaNetUriAccess getJavaNetUriAccess() { 138 if (javaNetUriAccess == null) 139 unsafe.ensureClassInitialized(java.net.URI.class); 140 return javaNetUriAccess; 141 } 142 143 public static void setJavaNetURLAccess(JavaNetURLAccess jnua) { 144 javaNetURLAccess = jnua; 145 } 146 147 public static JavaNetURLAccess getJavaNetURLAccess() { 148 if (javaNetURLAccess == null) 149 unsafe.ensureClassInitialized(java.net.URL.class); 150 return javaNetURLAccess; 151 } 152 153 public static void setJavaNetURLClassLoaderAccess(JavaNetURLClassLoaderAccess jnua) { 154 javaNetURLClassLoaderAccess = jnua; 155 } 156 157 public static JavaNetURLClassLoaderAccess getJavaNetURLClassLoaderAccess() { 158 if (javaNetURLClassLoaderAccess == null) 159 unsafe.ensureClassInitialized(java.net.URLClassLoader.class); 160 return javaNetURLClassLoaderAccess; 161 } 162 163 public static void setJavaNetInetAddressAccess(JavaNetInetAddressAccess jna) { 164 javaNetInetAddressAccess = jna; 165 } 166 167 public static JavaNetInetAddressAccess getJavaNetInetAddressAccess() { 168 if (javaNetInetAddressAccess == null) 169 unsafe.ensureClassInitialized(java.net.InetAddress.class); 170 return javaNetInetAddressAccess; 171 } 172 173 public static void setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a) { 174 javaNetHttpCookieAccess = a; 175 } 176 177 public static JavaNetHttpCookieAccess getJavaNetHttpCookieAccess() { 178 if (javaNetHttpCookieAccess == null) 179 unsafe.ensureClassInitialized(java.net.HttpCookie.class); 180 return javaNetHttpCookieAccess; 181 } 182 183 public static void setJavaNetSocketAccess(JavaNetSocketAccess jnsa) { 184 javaNetSocketAccess = jnsa; 185 } 186 187 public static JavaNetSocketAccess getJavaNetSocketAccess() { 188 if (javaNetSocketAccess == null) 189 unsafe.ensureClassInitialized(java.net.ServerSocket.class); 190 return javaNetSocketAccess; 191 } 192 193 public static void setJavaNioAccess(JavaNioAccess jna) { 194 javaNioAccess = jna; 195 } 196 197 public static JavaNioAccess getJavaNioAccess() { 198 if (javaNioAccess == null) { 199 // Ensure java.nio.Buffer is initialized, which provides the 200 // shared secret. 201 unsafe.ensureClassInitialized(java.nio.Buffer.class); 202 } 203 return javaNioAccess; 204 } 205 206 public static void setJavaIOAccess(JavaIOAccess jia) { 207 javaIOAccess = jia; 208 } 209 210 public static JavaIOAccess getJavaIOAccess() { 211 if (javaIOAccess == null) { 212 unsafe.ensureClassInitialized(Console.class); 213 } 214 return javaIOAccess; 215 } 216 217 public static void setJavaIOFileDescriptorAccess(JavaIOFileDescriptorAccess jiofda) { 218 javaIOFileDescriptorAccess = jiofda; 219 } 220 221 public static JavaIOFilePermissionAccess getJavaIOFilePermissionAccess() { 222 if (javaIOFilePermissionAccess == null) 223 unsafe.ensureClassInitialized(FilePermission.class); 224 225 return javaIOFilePermissionAccess; 226 } 227 228 public static void setJavaIOFilePermissionAccess(JavaIOFilePermissionAccess jiofpa) { 229 javaIOFilePermissionAccess = jiofpa; 230 } 231 232 public static JavaIOFileDescriptorAccess getJavaIOFileDescriptorAccess() { 233 if (javaIOFileDescriptorAccess == null) 234 unsafe.ensureClassInitialized(FileDescriptor.class); 235 236 return javaIOFileDescriptorAccess; 237 } 238 239 public static void setJavaSecurityAccess(JavaSecurityAccess jsa) { 240 javaSecurityAccess = jsa; 241 } 242 243 public static JavaSecurityAccess getJavaSecurityAccess() { 244 if (javaSecurityAccess == null) { 245 unsafe.ensureClassInitialized(ProtectionDomain.class); 246 } 247 return javaSecurityAccess; 248 } 249 250 public static JavaUtilZipFileAccess getJavaUtilZipFileAccess() { 251 if (javaUtilZipFileAccess == null) 252 unsafe.ensureClassInitialized(java.util.zip.ZipFile.class); 253 return javaUtilZipFileAccess; 254 } 255 256 public static void setJavaUtilZipFileAccess(JavaUtilZipFileAccess access) { 257 javaUtilZipFileAccess = access; 258 } 259 260 public static void setJavaAWTFontAccess(JavaAWTFontAccess jafa) { 261 javaAWTFontAccess = jafa; 262 } 263 264 public static JavaAWTFontAccess getJavaAWTFontAccess() { 265 // this may return null in which case calling code needs to 266 // provision for. 267 return javaAWTFontAccess; 268 } 269 270 public static JavaBeansAccess getJavaBeansAccess() { 271 return javaBeansAccess; 272 } 273 274 public static void setJavaBeansAccess(JavaBeansAccess access) { 275 javaBeansAccess = access; 276 } 277 278 public static JavaUtilResourceBundleAccess getJavaUtilResourceBundleAccess() { 279 if (javaUtilResourceBundleAccess == null) 280 unsafe.ensureClassInitialized(ResourceBundle.class); 281 return javaUtilResourceBundleAccess; 282 } 283 284 public static void setJavaUtilResourceBundleAccess(JavaUtilResourceBundleAccess access) { 285 javaUtilResourceBundleAccess = access; 286 } 287 288 public static JavaObjectInputStreamAccess getJavaObjectInputStreamAccess() { 289 if (javaObjectInputStreamAccess == null) { 290 unsafe.ensureClassInitialized(ObjectInputStream.class); 291 } 292 return javaObjectInputStreamAccess; 293 } 294 295 public static void setJavaObjectInputStreamAccess(JavaObjectInputStreamAccess access) { 296 javaObjectInputStreamAccess = access; 297 } 298 299 public static JavaObjectInputFilterAccess getJavaObjectInputFilterAccess() { 300 if (javaObjectInputFilterAccess == null) { 301 unsafe.ensureClassInitialized(ObjectInputFilter.Config.class); 302 } 303 return javaObjectInputFilterAccess; 304 } 305 306 public static void setJavaObjectInputFilterAccess(JavaObjectInputFilterAccess access) { 307 javaObjectInputFilterAccess = access; 308 } 309 310 public static void setJavaIORandomAccessFileAccess(JavaIORandomAccessFileAccess jirafa) { 311 javaIORandomAccessFileAccess = jirafa; 312 } 313 314 public static JavaIORandomAccessFileAccess getJavaIORandomAccessFileAccess() { 315 if (javaIORandomAccessFileAccess == null) { 316 unsafe.ensureClassInitialized(RandomAccessFile.class); 317 } 318 return javaIORandomAccessFileAccess; 319 } 320 321 public static void setJavaSecuritySignatureAccess(JavaSecuritySignatureAccess jssa) { 322 javaSecuritySignatureAccess = jssa; 323 } 324 325 public static JavaSecuritySignatureAccess getJavaSecuritySignatureAccess() { 326 if (javaSecuritySignatureAccess == null) { 327 unsafe.ensureClassInitialized(Signature.class); 328 } 329 return javaSecuritySignatureAccess; 330 } 331 332 public static void setJavaxCryptoSealedObjectAccess(JavaxCryptoSealedObjectAccess jcsoa) { 333 javaxCryptoSealedObjectAccess = jcsoa; 334 } 335 336 public static JavaxCryptoSealedObjectAccess getJavaxCryptoSealedObjectAccess() { 337 if (javaxCryptoSealedObjectAccess == null) { 338 unsafe.ensureClassInitialized(SealedObject.class); 339 } 340 return javaxCryptoSealedObjectAccess; 341 } 342 }