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| 1 | +/* | |
| 2 | + * Copyright (c) 2003, 2006, 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 com.sun.jmx.remote.security; | |
| 27 | + | |
| 28 | +import com.sun.jmx.mbeanserver.GetPropertyAction; | |
| 29 | +import java.io.ObjectInputStream; | |
| 30 | +import java.security.AccessController; | |
| 31 | +import java.util.Set; | |
| 32 | +import javax.management.Attribute; | |
| 33 | +import javax.management.AttributeList; | |
| 34 | +import javax.management.AttributeNotFoundException; | |
| 35 | +import javax.management.InstanceNotFoundException; | |
| 36 | +import javax.management.InstanceAlreadyExistsException; | |
| 37 | +import javax.management.IntrospectionException; | |
| 38 | +import javax.management.InvalidAttributeValueException; | |
| 39 | +import javax.management.ListenerNotFoundException; | |
| 40 | +import javax.management.MBeanException; | |
| 41 | +import javax.management.MBeanInfo; | |
| 42 | +import javax.management.MBeanRegistrationException; | |
| 43 | +import javax.management.MBeanServer; | |
| 44 | +import javax.management.NotCompliantMBeanException; | |
| 45 | +import javax.management.NotificationFilter; | |
| 46 | +import javax.management.NotificationListener; | |
| 47 | +import javax.management.ObjectInstance; | |
| 48 | +import javax.management.ObjectName; | |
| 49 | +import javax.management.OperationsException; | |
| 50 | +import javax.management.QueryExp; | |
| 51 | +import javax.management.ReflectionException; | |
| 52 | +import javax.management.loading.ClassLoaderRepository; | |
| 53 | +import javax.management.remote.MBeanServerForwarder; | |
| 54 | + | |
| 55 | +/** | |
| 56 | + * <p>An object of this class implements the MBeanServer interface | |
| 57 | + * and, for each of its methods, calls an appropriate checking method | |
| 58 | + * and then forwards the request to a wrapped MBeanServer object. The | |
| 59 | + * checking method may throw a RuntimeException if the operation is | |
| 60 | + * not allowed; in this case the request is not forwarded to the | |
| 61 | + * wrapped object.</p> | |
| 62 | + * | |
| 63 | + * <p>A typical use of this class is to insert it between a connector server | |
| 64 | + * such as the RMI connector and the MBeanServer with which the connector | |
| 65 | + * is associated. Requests from the connector client can then be filtered | |
| 66 | + * and those operations that are not allowed, or not allowed in a particular | |
| 67 | + * context, can be rejected by throwing a <code>SecurityException</code> | |
| 68 | + * in the corresponding <code>check*</code> method.</p> | |
| 69 | + * | |
| 70 | + * <p>This is an abstract class, because in its implementation none of | |
| 71 | + * the checking methods does anything. To be useful, it must be | |
| 72 | + * subclassed and at least one of the checking methods overridden to | |
| 73 | + * do some checking. Some or all of the MBeanServer methods may also | |
| 74 | + * be overridden, for instance if the default checking behavior is | |
| 75 | + * inappropriate.</p> | |
| 76 | + * | |
| 77 | + * <p>If there is no SecurityManager, then the access controller will refuse | |
| 78 | + * to create an MBean that is a ClassLoader, which includes MLets, or to | |
| 79 | + * execute the method addURL on an MBean that is an MLet. This prevents | |
| 80 | + * people from opening security holes unintentionally. Otherwise, it | |
| 81 | + * would not be obvious that granting write access grants the ability to | |
| 82 | + * download and execute arbitrary code in the target MBean server. Advanced | |
| 83 | + * users who do want the ability to use MLets are presumably advanced enough | |
| 84 | + * to handle policy files and security managers.</p> | |
| 85 | + */ | |
| 86 | +public abstract class MBeanServerAccessController | |
| 87 | + implements MBeanServerForwarder { | |
| 88 | + | |
| 89 | + public MBeanServer getMBeanServer() { | |
| 90 | + return mbs; | |
| 91 | + } | |
| 92 | + | |
| 93 | + public void setMBeanServer(MBeanServer mbs) { | |
| 94 | + if (mbs == null) | |
| 95 | + throw new IllegalArgumentException("Null MBeanServer"); | |
| 96 | + if (this.mbs != null) | |
| 97 | + throw new IllegalArgumentException("MBeanServer object already " + | |
| 98 | + "initialized"); | |
| 99 | + this.mbs = mbs; | |
| 100 | + } | |
| 101 | + | |
| 102 | + /** | |
| 103 | + * Check if the caller can do read operations. This method does | |
| 104 | + * nothing if so, otherwise throws SecurityException. | |
| 105 | + */ | |
| 106 | + protected abstract void checkRead(); | |
| 107 | + | |
| 108 | + /** | |
| 109 | + * Check if the caller can do write operations. This method does | |
| 110 | + * nothing if so, otherwise throws SecurityException. | |
| 111 | + */ | |
| 112 | + protected abstract void checkWrite(); | |
| 113 | + | |
| 114 | + /** | |
| 115 | + * Check if the caller can create the named class. The default | |
| 116 | + * implementation of this method calls {@link #checkWrite()}. | |
| 117 | + */ | |
| 118 | + protected void checkCreate(String className) { | |
| 119 | + checkWrite(); | |
| 120 | + } | |
| 121 | + | |
| 122 | + /** | |
| 123 | + * Check if the caller can unregister the named MBean. The default | |
| 124 | + * implementation of this method calls {@link #checkWrite()}. | |
| 125 | + */ | |
| 126 | + protected void checkUnregister(ObjectName name) { | |
| 127 | + checkWrite(); | |
| 128 | + } | |
| 129 | + | |
| 130 | + //-------------------------------------------- | |
| 131 | + //-------------------------------------------- | |
| 132 | + // | |
| 133 | + // Implementation of the MBeanServer interface | |
| 134 | + // | |
| 135 | + //-------------------------------------------- | |
| 136 | + //-------------------------------------------- | |
| 137 | + | |
| 138 | + /** | |
| 139 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 140 | + * wrapped object. | |
| 141 | + */ | |
| 142 | + public void addNotificationListener(ObjectName name, | |
| 143 | + NotificationListener listener, | |
| 144 | + NotificationFilter filter, | |
| 145 | + Object handback) | |
| 146 | + throws InstanceNotFoundException { | |
| 147 | + checkRead(); | |
| 148 | + getMBeanServer().addNotificationListener(name, listener, | |
| 149 | + filter, handback); | |
| 150 | + } | |
| 151 | + | |
| 152 | + /** | |
| 153 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 154 | + * wrapped object. | |
| 155 | + */ | |
| 156 | + public void addNotificationListener(ObjectName name, | |
| 157 | + ObjectName listener, | |
| 158 | + NotificationFilter filter, | |
| 159 | + Object handback) | |
| 160 | + throws InstanceNotFoundException { | |
| 161 | + checkRead(); | |
| 162 | + getMBeanServer().addNotificationListener(name, listener, | |
| 163 | + filter, handback); | |
| 164 | + } | |
| 165 | + | |
| 166 | + /** | |
| 167 | + * Call <code>checkCreate(className)</code>, then forward this method to the | |
| 168 | + * wrapped object. | |
| 169 | + */ | |
| 170 | + public ObjectInstance createMBean(String className, ObjectName name) | |
| 171 | + throws | |
| 172 | + ReflectionException, | |
| 173 | + InstanceAlreadyExistsException, | |
| 174 | + MBeanRegistrationException, | |
| 175 | + MBeanException, | |
| 176 | + NotCompliantMBeanException { | |
| 177 | + checkCreate(className); | |
| 178 | + SecurityManager sm = System.getSecurityManager(); | |
| 179 | + if (sm == null) { | |
| 180 | + Object object = getMBeanServer().instantiate(className); | |
| 181 | + checkClassLoader(object); | |
| 182 | + return getMBeanServer().registerMBean(object, name); | |
| 183 | + } else { | |
| 184 | + return getMBeanServer().createMBean(className, name); | |
| 185 | + } | |
| 186 | + } | |
| 187 | + | |
| 188 | + /** | |
| 189 | + * Call <code>checkCreate(className)</code>, then forward this method to the | |
| 190 | + * wrapped object. | |
| 191 | + */ | |
| 192 | + public ObjectInstance createMBean(String className, ObjectName name, | |
| 193 | + Object params[], String signature[]) | |
| 194 | + throws | |
| 195 | + ReflectionException, | |
| 196 | + InstanceAlreadyExistsException, | |
| 197 | + MBeanRegistrationException, | |
| 198 | + MBeanException, | |
| 199 | + NotCompliantMBeanException { | |
| 200 | + checkCreate(className); | |
| 201 | + SecurityManager sm = System.getSecurityManager(); | |
| 202 | + if (sm == null) { | |
| 203 | + Object object = getMBeanServer().instantiate(className, | |
| 204 | + params, | |
| 205 | + signature); | |
| 206 | + checkClassLoader(object); | |
| 207 | + return getMBeanServer().registerMBean(object, name); | |
| 208 | + } else { | |
| 209 | + return getMBeanServer().createMBean(className, name, | |
| 210 | + params, signature); | |
| 211 | + } | |
| 212 | + } | |
| 213 | + | |
| 214 | + /** | |
| 215 | + * Call <code>checkCreate(className)</code>, then forward this method to the | |
| 216 | + * wrapped object. | |
| 217 | + */ | |
| 218 | + public ObjectInstance createMBean(String className, | |
| 219 | + ObjectName name, | |
| 220 | + ObjectName loaderName) | |
| 221 | + throws | |
| 222 | + ReflectionException, | |
| 223 | + InstanceAlreadyExistsException, | |
| 224 | + MBeanRegistrationException, | |
| 225 | + MBeanException, | |
| 226 | + NotCompliantMBeanException, | |
| 227 | + InstanceNotFoundException { | |
| 228 | + checkCreate(className); | |
| 229 | + SecurityManager sm = System.getSecurityManager(); | |
| 230 | + if (sm == null) { | |
| 231 | + Object object = getMBeanServer().instantiate(className, | |
| 232 | + loaderName); | |
| 233 | + checkClassLoader(object); | |
| 234 | + return getMBeanServer().registerMBean(object, name); | |
| 235 | + } else { | |
| 236 | + return getMBeanServer().createMBean(className, name, loaderName); | |
| 237 | + } | |
| 238 | + } | |
| 239 | + | |
| 240 | + /** | |
| 241 | + * Call <code>checkCreate(className)</code>, then forward this method to the | |
| 242 | + * wrapped object. | |
| 243 | + */ | |
| 244 | + public ObjectInstance createMBean(String className, | |
| 245 | + ObjectName name, | |
| 246 | + ObjectName loaderName, | |
| 247 | + Object params[], | |
| 248 | + String signature[]) | |
| 249 | + throws | |
| 250 | + ReflectionException, | |
| 251 | + InstanceAlreadyExistsException, | |
| 252 | + MBeanRegistrationException, | |
| 253 | + MBeanException, | |
| 254 | + NotCompliantMBeanException, | |
| 255 | + InstanceNotFoundException { | |
| 256 | + checkCreate(className); | |
| 257 | + SecurityManager sm = System.getSecurityManager(); | |
| 258 | + if (sm == null) { | |
| 259 | + Object object = getMBeanServer().instantiate(className, | |
| 260 | + loaderName, | |
| 261 | + params, | |
| 262 | + signature); | |
| 263 | + checkClassLoader(object); | |
| 264 | + return getMBeanServer().registerMBean(object, name); | |
| 265 | + } else { | |
| 266 | + return getMBeanServer().createMBean(className, name, loaderName, | |
| 267 | + params, signature); | |
| 268 | + } | |
| 269 | + } | |
| 270 | + | |
| 271 | + /** | |
| 272 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 273 | + * wrapped object. | |
| 274 | + */ | |
| 275 | + @Deprecated | |
| 276 | + public ObjectInputStream deserialize(ObjectName name, byte[] data) | |
| 277 | + throws InstanceNotFoundException, OperationsException { | |
| 278 | + checkRead(); | |
| 279 | + return getMBeanServer().deserialize(name, data); | |
| 280 | + } | |
| 281 | + | |
| 282 | + /** | |
| 283 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 284 | + * wrapped object. | |
| 285 | + */ | |
| 286 | + @Deprecated | |
| 287 | + public ObjectInputStream deserialize(String className, byte[] data) | |
| 288 | + throws OperationsException, ReflectionException { | |
| 289 | + checkRead(); | |
| 290 | + return getMBeanServer().deserialize(className, data); | |
| 291 | + } | |
| 292 | + | |
| 293 | + /** | |
| 294 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 295 | + * wrapped object. | |
| 296 | + */ | |
| 297 | + @Deprecated | |
| 298 | + public ObjectInputStream deserialize(String className, | |
| 299 | + ObjectName loaderName, | |
| 300 | + byte[] data) | |
| 301 | + throws | |
| 302 | + InstanceNotFoundException, | |
| 303 | + OperationsException, | |
| 304 | + ReflectionException { | |
| 305 | + checkRead(); | |
| 306 | + return getMBeanServer().deserialize(className, loaderName, data); | |
| 307 | + } | |
| 308 | + | |
| 309 | + /** | |
| 310 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 311 | + * wrapped object. | |
| 312 | + */ | |
| 313 | + public Object getAttribute(ObjectName name, String attribute) | |
| 314 | + throws | |
| 315 | + MBeanException, | |
| 316 | + AttributeNotFoundException, | |
| 317 | + InstanceNotFoundException, | |
| 318 | + ReflectionException { | |
| 319 | + checkRead(); | |
| 320 | + return getMBeanServer().getAttribute(name, attribute); | |
| 321 | + } | |
| 322 | + | |
| 323 | + /** | |
| 324 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 325 | + * wrapped object. | |
| 326 | + */ | |
| 327 | + public AttributeList getAttributes(ObjectName name, String[] attributes) | |
| 328 | + throws InstanceNotFoundException, ReflectionException { | |
| 329 | + checkRead(); | |
| 330 | + return getMBeanServer().getAttributes(name, attributes); | |
| 331 | + } | |
| 332 | + | |
| 333 | + /** | |
| 334 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 335 | + * wrapped object. | |
| 336 | + */ | |
| 337 | + public ClassLoader getClassLoader(ObjectName loaderName) | |
| 338 | + throws InstanceNotFoundException { | |
| 339 | + checkRead(); | |
| 340 | + return getMBeanServer().getClassLoader(loaderName); | |
| 341 | + } | |
| 342 | + | |
| 343 | + /** | |
| 344 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 345 | + * wrapped object. | |
| 346 | + */ | |
| 347 | + public ClassLoader getClassLoaderFor(ObjectName mbeanName) | |
| 348 | + throws InstanceNotFoundException { | |
| 349 | + checkRead(); | |
| 350 | + return getMBeanServer().getClassLoaderFor(mbeanName); | |
| 351 | + } | |
| 352 | + | |
| 353 | + /** | |
| 354 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 355 | + * wrapped object. | |
| 356 | + */ | |
| 357 | + public ClassLoaderRepository getClassLoaderRepository() { | |
| 358 | + checkRead(); | |
| 359 | + return getMBeanServer().getClassLoaderRepository(); | |
| 360 | + } | |
| 361 | + | |
| 362 | + /** | |
| 363 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 364 | + * wrapped object. | |
| 365 | + */ | |
| 366 | + public String getDefaultDomain() { | |
| 367 | + checkRead(); | |
| 368 | + return getMBeanServer().getDefaultDomain(); | |
| 369 | + } | |
| 370 | + | |
| 371 | + /** | |
| 372 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 373 | + * wrapped object. | |
| 374 | + */ | |
| 375 | + public String[] getDomains() { | |
| 376 | + checkRead(); | |
| 377 | + return getMBeanServer().getDomains(); | |
| 378 | + } | |
| 379 | + | |
| 380 | + /** | |
| 381 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 382 | + * wrapped object. | |
| 383 | + */ | |
| 384 | + public Integer getMBeanCount() { | |
| 385 | + checkRead(); | |
| 386 | + return getMBeanServer().getMBeanCount(); | |
| 387 | + } | |
| 388 | + | |
| 389 | + /** | |
| 390 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 391 | + * wrapped object. | |
| 392 | + */ | |
| 393 | + public MBeanInfo getMBeanInfo(ObjectName name) | |
| 394 | + throws | |
| 395 | + InstanceNotFoundException, | |
| 396 | + IntrospectionException, | |
| 397 | + ReflectionException { | |
| 398 | + checkRead(); | |
| 399 | + return getMBeanServer().getMBeanInfo(name); | |
| 400 | + } | |
| 401 | + | |
| 402 | + /** | |
| 403 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 404 | + * wrapped object. | |
| 405 | + */ | |
| 406 | + public ObjectInstance getObjectInstance(ObjectName name) | |
| 407 | + throws InstanceNotFoundException { | |
| 408 | + checkRead(); | |
| 409 | + return getMBeanServer().getObjectInstance(name); | |
| 410 | + } | |
| 411 | + | |
| 412 | + /** | |
| 413 | + * Call <code>checkCreate(className)</code>, then forward this method to the | |
| 414 | + * wrapped object. | |
| 415 | + */ | |
| 416 | + public Object instantiate(String className) | |
| 417 | + throws ReflectionException, MBeanException { | |
| 418 | + checkCreate(className); | |
| 419 | + return getMBeanServer().instantiate(className); | |
| 420 | + } | |
| 421 | + | |
| 422 | + /** | |
| 423 | + * Call <code>checkCreate(className)</code>, then forward this method to the | |
| 424 | + * wrapped object. | |
| 425 | + */ | |
| 426 | + public Object instantiate(String className, | |
| 427 | + Object params[], | |
| 428 | + String signature[]) | |
| 429 | + throws ReflectionException, MBeanException { | |
| 430 | + checkCreate(className); | |
| 431 | + return getMBeanServer().instantiate(className, params, signature); | |
| 432 | + } | |
| 433 | + | |
| 434 | + /** | |
| 435 | + * Call <code>checkCreate(className)</code>, then forward this method to the | |
| 436 | + * wrapped object. | |
| 437 | + */ | |
| 438 | + public Object instantiate(String className, ObjectName loaderName) | |
| 439 | + throws ReflectionException, MBeanException, InstanceNotFoundException { | |
| 440 | + checkCreate(className); | |
| 441 | + return getMBeanServer().instantiate(className, loaderName); | |
| 442 | + } | |
| 443 | + | |
| 444 | + /** | |
| 445 | + * Call <code>checkCreate(className)</code>, then forward this method to the | |
| 446 | + * wrapped object. | |
| 447 | + */ | |
| 448 | + public Object instantiate(String className, ObjectName loaderName, | |
| 449 | + Object params[], String signature[]) | |
| 450 | + throws ReflectionException, MBeanException, InstanceNotFoundException { | |
| 451 | + checkCreate(className); | |
| 452 | + return getMBeanServer().instantiate(className, loaderName, | |
| 453 | + params, signature); | |
| 454 | + } | |
| 455 | + | |
| 456 | + /** | |
| 457 | + * Call <code>checkWrite()</code>, then forward this method to the | |
| 458 | + * wrapped object. | |
| 459 | + */ | |
| 460 | + public Object invoke(ObjectName name, String operationName, | |
| 461 | + Object params[], String signature[]) | |
| 462 | + throws | |
| 463 | + InstanceNotFoundException, | |
| 464 | + MBeanException, | |
| 465 | + ReflectionException { | |
| 466 | + checkWrite(); | |
| 467 | + checkMLetMethods(name, operationName); | |
| 468 | + return getMBeanServer().invoke(name, operationName, params, signature); | |
| 469 | + } | |
| 470 | + | |
| 471 | + /** | |
| 472 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 473 | + * wrapped object. | |
| 474 | + */ | |
| 475 | + public boolean isInstanceOf(ObjectName name, String className) | |
| 476 | + throws InstanceNotFoundException { | |
| 477 | + checkRead(); | |
| 478 | + return getMBeanServer().isInstanceOf(name, className); | |
| 479 | + } | |
| 480 | + | |
| 481 | + /** | |
| 482 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 483 | + * wrapped object. | |
| 484 | + */ | |
| 485 | + public boolean isRegistered(ObjectName name) { | |
| 486 | + checkRead(); | |
| 487 | + return getMBeanServer().isRegistered(name); | |
| 488 | + } | |
| 489 | + | |
| 490 | + /** | |
| 491 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 492 | + * wrapped object. | |
| 493 | + */ | |
| 494 | + public Set<ObjectInstance> queryMBeans(ObjectName name, QueryExp query) { | |
| 495 | + checkRead(); | |
| 496 | + return getMBeanServer().queryMBeans(name, query); | |
| 497 | + } | |
| 498 | + | |
| 499 | + /** | |
| 500 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 501 | + * wrapped object. | |
| 502 | + */ | |
| 503 | + public Set<ObjectName> queryNames(ObjectName name, QueryExp query) { | |
| 504 | + checkRead(); | |
| 505 | + return getMBeanServer().queryNames(name, query); | |
| 506 | + } | |
| 507 | + | |
| 508 | + /** | |
| 509 | + * Call <code>checkWrite()</code>, then forward this method to the | |
| 510 | + * wrapped object. | |
| 511 | + */ | |
| 512 | + public ObjectInstance registerMBean(Object object, ObjectName name) | |
| 513 | + throws | |
| 514 | + InstanceAlreadyExistsException, | |
| 515 | + MBeanRegistrationException, | |
| 516 | + NotCompliantMBeanException { | |
| 517 | + checkWrite(); | |
| 518 | + return getMBeanServer().registerMBean(object, name); | |
| 519 | + } | |
| 520 | + | |
| 521 | + /** | |
| 522 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 523 | + * wrapped object. | |
| 524 | + */ | |
| 525 | + public void removeNotificationListener(ObjectName name, | |
| 526 | + NotificationListener listener) | |
| 527 | + throws InstanceNotFoundException, ListenerNotFoundException { | |
| 528 | + checkRead(); | |
| 529 | + getMBeanServer().removeNotificationListener(name, listener); | |
| 530 | + } | |
| 531 | + | |
| 532 | + /** | |
| 533 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 534 | + * wrapped object. | |
| 535 | + */ | |
| 536 | + public void removeNotificationListener(ObjectName name, | |
| 537 | + NotificationListener listener, | |
| 538 | + NotificationFilter filter, | |
| 539 | + Object handback) | |
| 540 | + throws InstanceNotFoundException, ListenerNotFoundException { | |
| 541 | + checkRead(); | |
| 542 | + getMBeanServer().removeNotificationListener(name, listener, | |
| 543 | + filter, handback); | |
| 544 | + } | |
| 545 | + | |
| 546 | + /** | |
| 547 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 548 | + * wrapped object. | |
| 549 | + */ | |
| 550 | + public void removeNotificationListener(ObjectName name, | |
| 551 | + ObjectName listener) | |
| 552 | + throws InstanceNotFoundException, ListenerNotFoundException { | |
| 553 | + checkRead(); | |
| 554 | + getMBeanServer().removeNotificationListener(name, listener); | |
| 555 | + } | |
| 556 | + | |
| 557 | + /** | |
| 558 | + * Call <code>checkRead()</code>, then forward this method to the | |
| 559 | + * wrapped object. | |
| 560 | + */ | |
| 561 | + public void removeNotificationListener(ObjectName name, | |
| 562 | + ObjectName listener, | |
| 563 | + NotificationFilter filter, | |
| 564 | + Object handback) | |
| 565 | + throws InstanceNotFoundException, ListenerNotFoundException { | |
| 566 | + checkRead(); | |
| 567 | + getMBeanServer().removeNotificationListener(name, listener, | |
| 568 | + filter, handback); | |
| 569 | + } | |
| 570 | + | |
| 571 | + /** | |
| 572 | + * Call <code>checkWrite()</code>, then forward this method to the | |
| 573 | + * wrapped object. | |
| 574 | + */ | |
| 575 | + public void setAttribute(ObjectName name, Attribute attribute) | |
| 576 | + throws | |
| 577 | + InstanceNotFoundException, | |
| 578 | + AttributeNotFoundException, | |
| 579 | + InvalidAttributeValueException, | |
| 580 | + MBeanException, | |
| 581 | + ReflectionException { | |
| 582 | + checkWrite(); | |
| 583 | + getMBeanServer().setAttribute(name, attribute); | |
| 584 | + } | |
| 585 | + | |
| 586 | + /** | |
| 587 | + * Call <code>checkWrite()</code>, then forward this method to the | |
| 588 | + * wrapped object. | |
| 589 | + */ | |
| 590 | + public AttributeList setAttributes(ObjectName name, | |
| 591 | + AttributeList attributes) | |
| 592 | + throws InstanceNotFoundException, ReflectionException { | |
| 593 | + checkWrite(); | |
| 594 | + return getMBeanServer().setAttributes(name, attributes); | |
| 595 | + } | |
| 596 | + | |
| 597 | + /** | |
| 598 | + * Call <code>checkUnregister()</code>, then forward this method to the | |
| 599 | + * wrapped object. | |
| 600 | + */ | |
| 601 | + public void unregisterMBean(ObjectName name) | |
| 602 | + throws InstanceNotFoundException, MBeanRegistrationException { | |
| 603 | + checkUnregister(name); | |
| 604 | + getMBeanServer().unregisterMBean(name); | |
| 605 | + } | |
| 606 | + | |
| 607 | + //---------------- | |
| 608 | + // PRIVATE METHODS | |
| 609 | + //---------------- | |
| 610 | + | |
| 611 | + private void checkClassLoader(Object object) { | |
| 612 | + if (object instanceof ClassLoader) | |
| 613 | + throw new SecurityException("Access denied! Creating an " + | |
| 614 | + "MBean that is a ClassLoader " + | |
| 615 | + "is forbidden unless a security " + | |
| 616 | + "manager is installed."); | |
| 617 | + } | |
| 618 | + | |
| 619 | + private void checkMLetMethods(ObjectName name, String operation) | |
| 620 | + throws InstanceNotFoundException { | |
| 621 | + // Check if security manager installed | |
| 622 | + SecurityManager sm = System.getSecurityManager(); | |
| 623 | + if (sm != null) { | |
| 624 | + return; | |
| 625 | + } | |
| 626 | + // Check for addURL and getMBeansFromURL methods | |
| 627 | + if (!operation.equals("addURL") && | |
| 628 | + !operation.equals("getMBeansFromURL")) { | |
| 629 | + return; | |
| 630 | + } | |
| 631 | + // Check if MBean is instance of MLet | |
| 632 | + if (!getMBeanServer().isInstanceOf(name, | |
| 633 | + "javax.management.loading.MLet")) { | |
| 634 | + return; | |
| 635 | + } | |
| 636 | + // Throw security exception | |
| 637 | + if (operation.equals("addURL")) { // addURL | |
| 638 | + throw new SecurityException("Access denied! MLet method addURL " + | |
| 639 | + "cannot be invoked unless a security manager is installed."); | |
| 640 | + } else { // getMBeansFromURL | |
| 641 | + // Whether or not calling getMBeansFromURL is allowed is controlled | |
| 642 | + // by the value of the "jmx.remote.x.mlet.allow.getMBeansFromURL" | |
| 643 | + // system property. If the value of this property is true, calling | |
| 644 | + // the MLet's getMBeansFromURL method is allowed. The default value | |
| 645 | + // for this property is false. | |
| 646 | + final String propName = "jmx.remote.x.mlet.allow.getMBeansFromURL"; | |
| 647 | + GetPropertyAction propAction = new GetPropertyAction(propName); | |
| 648 | + String propValue = AccessController.doPrivileged(propAction); | |
| 649 | + boolean allowGetMBeansFromURL = "true".equalsIgnoreCase(propValue); | |
| 650 | + if (!allowGetMBeansFromURL) { | |
| 651 | + throw new SecurityException("Access denied! MLet method " + | |
| 652 | + "getMBeansFromURL cannot be invoked unless a " + | |
| 653 | + "security manager is installed or the system property " + | |
| 654 | + "-Djmx.remote.x.mlet.allow.getMBeansFromURL=true " + | |
| 655 | + "is specified."); | |
| 656 | + } | |
| 657 | + } | |
| 658 | + } | |
| 659 | + | |
| 660 | + //------------------ | |
| 661 | + // PRIVATE VARIABLES | |
| 662 | + //------------------ | |
| 663 | + | |
| 664 | + private MBeanServer mbs; | |
| 665 | +} | |