author | chegar |
Sun, 17 Aug 2014 15:54:13 +0100 | |
changeset 25859 | 3317bb8137f4 |
parent 24685 | jdk/src/share/classes/java/security/BasicPermission.java@215fa91e1b4c |
child 29492 | a4bf9a570035 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
18579
b678846778ad
8019360: Cleanup of the javadoc <code> tag in java.security.*
juh
parents:
14668
diff
changeset
|
2 |
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
2 | 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 |
|
5506 | 7 |
* published by the Free Software Foundation. Oracle designates this |
2 | 8 |
* particular file as subject to the "Classpath" exception as provided |
5506 | 9 |
* by Oracle in the LICENSE file that accompanied this code. |
2 | 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 |
* |
|
5506 | 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. |
|
2 | 24 |
*/ |
25 |
||
26 |
package java.security; |
|
27 |
||
28 |
import java.util.Enumeration; |
|
29 |
import java.util.Map; |
|
30 |
import java.util.HashMap; |
|
31 |
import java.util.Hashtable; |
|
32 |
import java.util.Collections; |
|
33 |
import java.io.ObjectStreamField; |
|
34 |
import java.io.ObjectOutputStream; |
|
35 |
import java.io.ObjectInputStream; |
|
36 |
import java.io.IOException; |
|
37 |
||
38 |
/** |
|
39 |
* The BasicPermission class extends the Permission class, and |
|
40 |
* can be used as the base class for permissions that want to |
|
41 |
* follow the same naming convention as BasicPermission. |
|
42 |
* <P> |
|
43 |
* The name for a BasicPermission is the name of the given permission |
|
44 |
* (for example, "exit", |
|
45 |
* "setFactory", "print.queueJob", etc). The naming |
|
46 |
* convention follows the hierarchical property naming convention. |
|
47 |
* An asterisk may appear by itself, or if immediately preceded by a "." |
|
48 |
* may appear at the end of the name, to signify a wildcard match. |
|
14667
6862285acf46
7167056: Clarify that BasicPermission names that contain non-wildcard asterisks are not invalid
mullan
parents:
14014
diff
changeset
|
49 |
* For example, "*" and "java.*" signify a wildcard match, while "*java", "a*b", |
6862285acf46
7167056: Clarify that BasicPermission names that contain non-wildcard asterisks are not invalid
mullan
parents:
14014
diff
changeset
|
50 |
* and "java*" do not. |
2 | 51 |
* <P> |
52 |
* The action string (inherited from Permission) is unused. |
|
53 |
* Thus, BasicPermission is commonly used as the base class for |
|
54 |
* "named" permissions |
|
55 |
* (ones that contain a name but no actions list; you either have the |
|
56 |
* named permission or you don't.) |
|
57 |
* Subclasses may implement actions on top of BasicPermission, |
|
58 |
* if desired. |
|
59 |
* <p> |
|
60 |
* @see java.security.Permission |
|
61 |
* @see java.security.Permissions |
|
62 |
* @see java.security.PermissionCollection |
|
63 |
* @see java.lang.SecurityManager |
|
64 |
* |
|
65 |
* @author Marianne Mueller |
|
66 |
* @author Roland Schemers |
|
67 |
*/ |
|
68 |
||
69 |
public abstract class BasicPermission extends Permission |
|
14014 | 70 |
implements java.io.Serializable |
2 | 71 |
{ |
72 |
||
73 |
private static final long serialVersionUID = 6279438298436773498L; |
|
74 |
||
75 |
// does this permission have a wildcard at the end? |
|
76 |
private transient boolean wildcard; |
|
77 |
||
78 |
// the name without the wildcard on the end |
|
79 |
private transient String path; |
|
80 |
||
81 |
// is this permission the old-style exitVM permission (pre JDK 1.6)? |
|
82 |
private transient boolean exitVM; |
|
83 |
||
84 |
/** |
|
85 |
* initialize a BasicPermission object. Common to all constructors. |
|
86 |
*/ |
|
14014 | 87 |
private void init(String name) { |
2 | 88 |
if (name == null) |
89 |
throw new NullPointerException("name can't be null"); |
|
90 |
||
91 |
int len = name.length(); |
|
92 |
||
93 |
if (len == 0) { |
|
94 |
throw new IllegalArgumentException("name can't be empty"); |
|
95 |
} |
|
96 |
||
97 |
char last = name.charAt(len - 1); |
|
98 |
||
99 |
// Is wildcard or ends with ".*"? |
|
100 |
if (last == '*' && (len == 1 || name.charAt(len - 2) == '.')) { |
|
101 |
wildcard = true; |
|
102 |
if (len == 1) { |
|
103 |
path = ""; |
|
104 |
} else { |
|
105 |
path = name.substring(0, len - 1); |
|
106 |
} |
|
107 |
} else { |
|
108 |
if (name.equals("exitVM")) { |
|
109 |
wildcard = true; |
|
110 |
path = "exitVM."; |
|
111 |
exitVM = true; |
|
112 |
} else { |
|
113 |
path = name; |
|
114 |
} |
|
115 |
} |
|
116 |
} |
|
117 |
||
118 |
/** |
|
119 |
* Creates a new BasicPermission with the specified name. |
|
120 |
* Name is the symbolic name of the permission, such as |
|
121 |
* "setFactory", |
|
122 |
* "print.queueJob", or "topLevelWindow", etc. |
|
123 |
* |
|
124 |
* @param name the name of the BasicPermission. |
|
125 |
* |
|
18579
b678846778ad
8019360: Cleanup of the javadoc <code> tag in java.security.*
juh
parents:
14668
diff
changeset
|
126 |
* @throws NullPointerException if {@code name} is {@code null}. |
b678846778ad
8019360: Cleanup of the javadoc <code> tag in java.security.*
juh
parents:
14668
diff
changeset
|
127 |
* @throws IllegalArgumentException if {@code name} is empty. |
2 | 128 |
*/ |
14014 | 129 |
public BasicPermission(String name) { |
2 | 130 |
super(name); |
131 |
init(name); |
|
132 |
} |
|
133 |
||
134 |
||
135 |
/** |
|
136 |
* Creates a new BasicPermission object with the specified name. |
|
137 |
* The name is the symbolic name of the BasicPermission, and the |
|
138 |
* actions String is currently unused. |
|
139 |
* |
|
140 |
* @param name the name of the BasicPermission. |
|
141 |
* @param actions ignored. |
|
142 |
* |
|
18579
b678846778ad
8019360: Cleanup of the javadoc <code> tag in java.security.*
juh
parents:
14668
diff
changeset
|
143 |
* @throws NullPointerException if {@code name} is {@code null}. |
b678846778ad
8019360: Cleanup of the javadoc <code> tag in java.security.*
juh
parents:
14668
diff
changeset
|
144 |
* @throws IllegalArgumentException if {@code name} is empty. |
2 | 145 |
*/ |
14014 | 146 |
public BasicPermission(String name, String actions) { |
2 | 147 |
super(name); |
148 |
init(name); |
|
149 |
} |
|
150 |
||
151 |
/** |
|
152 |
* Checks if the specified permission is "implied" by |
|
153 |
* this object. |
|
154 |
* <P> |
|
21334 | 155 |
* More specifically, this method returns true if: |
2 | 156 |
* <ul> |
21334 | 157 |
* <li> <i>p</i>'s class is the same as this object's class, and |
2 | 158 |
* <li> <i>p</i>'s name equals or (in the case of wildcards) |
159 |
* is implied by this object's |
|
160 |
* name. For example, "a.b.*" implies "a.b.c". |
|
161 |
* </ul> |
|
162 |
* |
|
163 |
* @param p the permission to check against. |
|
164 |
* |
|
165 |
* @return true if the passed permission is equal to or |
|
166 |
* implied by this permission, false otherwise. |
|
167 |
*/ |
|
168 |
public boolean implies(Permission p) { |
|
169 |
if ((p == null) || (p.getClass() != getClass())) |
|
170 |
return false; |
|
171 |
||
172 |
BasicPermission that = (BasicPermission) p; |
|
173 |
||
174 |
if (this.wildcard) { |
|
175 |
if (that.wildcard) { |
|
176 |
// one wildcard can imply another |
|
177 |
return that.path.startsWith(path); |
|
178 |
} else { |
|
179 |
// make sure ap.path is longer so a.b.* doesn't imply a.b |
|
180 |
return (that.path.length() > this.path.length()) && |
|
181 |
that.path.startsWith(this.path); |
|
182 |
} |
|
183 |
} else { |
|
184 |
if (that.wildcard) { |
|
185 |
// a non-wildcard can't imply a wildcard |
|
186 |
return false; |
|
187 |
} |
|
188 |
else { |
|
189 |
return this.path.equals(that.path); |
|
190 |
} |
|
191 |
} |
|
192 |
} |
|
193 |
||
194 |
/** |
|
195 |
* Checks two BasicPermission objects for equality. |
|
196 |
* Checks that <i>obj</i>'s class is the same as this object's class |
|
197 |
* and has the same name as this object. |
|
198 |
* <P> |
|
199 |
* @param obj the object we are testing for equality with this object. |
|
485
a66666a5898c
6690169: Specification for BasicPermission.equals() is not consistent
mullan
parents:
2
diff
changeset
|
200 |
* @return true if <i>obj</i>'s class is the same as this object's class |
a66666a5898c
6690169: Specification for BasicPermission.equals() is not consistent
mullan
parents:
2
diff
changeset
|
201 |
* and has the same name as this BasicPermission object, false otherwise. |
2 | 202 |
*/ |
203 |
public boolean equals(Object obj) { |
|
204 |
if (obj == this) |
|
205 |
return true; |
|
206 |
||
207 |
if ((obj == null) || (obj.getClass() != getClass())) |
|
208 |
return false; |
|
209 |
||
210 |
BasicPermission bp = (BasicPermission) obj; |
|
211 |
||
212 |
return getName().equals(bp.getName()); |
|
213 |
} |
|
214 |
||
215 |
||
216 |
/** |
|
217 |
* Returns the hash code value for this object. |
|
218 |
* The hash code used is the hash code of the name, that is, |
|
18579
b678846778ad
8019360: Cleanup of the javadoc <code> tag in java.security.*
juh
parents:
14668
diff
changeset
|
219 |
* {@code getName().hashCode()}, where {@code getName} is |
2 | 220 |
* from the Permission superclass. |
221 |
* |
|
222 |
* @return a hash code value for this object. |
|
223 |
*/ |
|
224 |
public int hashCode() { |
|
225 |
return this.getName().hashCode(); |
|
226 |
} |
|
227 |
||
228 |
/** |
|
229 |
* Returns the canonical string representation of the actions, |
|
230 |
* which currently is the empty string "", since there are no actions for |
|
231 |
* a BasicPermission. |
|
232 |
* |
|
233 |
* @return the empty string "". |
|
234 |
*/ |
|
14014 | 235 |
public String getActions() { |
2 | 236 |
return ""; |
237 |
} |
|
238 |
||
239 |
/** |
|
240 |
* Returns a new PermissionCollection object for storing BasicPermission |
|
241 |
* objects. |
|
242 |
* |
|
243 |
* <p>BasicPermission objects must be stored in a manner that allows them |
|
244 |
* to be inserted in any order, but that also enables the |
|
18579
b678846778ad
8019360: Cleanup of the javadoc <code> tag in java.security.*
juh
parents:
14668
diff
changeset
|
245 |
* PermissionCollection {@code implies} method |
2 | 246 |
* to be implemented in an efficient (and consistent) manner. |
247 |
* |
|
248 |
* @return a new PermissionCollection object suitable for |
|
249 |
* storing BasicPermissions. |
|
250 |
*/ |
|
251 |
public PermissionCollection newPermissionCollection() { |
|
252 |
return new BasicPermissionCollection(this.getClass()); |
|
253 |
} |
|
254 |
||
255 |
/** |
|
256 |
* readObject is called to restore the state of the BasicPermission from |
|
257 |
* a stream. |
|
258 |
*/ |
|
259 |
private void readObject(ObjectInputStream s) |
|
260 |
throws IOException, ClassNotFoundException |
|
261 |
{ |
|
262 |
s.defaultReadObject(); |
|
263 |
// init is called to initialize the rest of the values. |
|
264 |
init(getName()); |
|
265 |
} |
|
266 |
||
267 |
/** |
|
268 |
* Returns the canonical name of this BasicPermission. |
|
269 |
* All internal invocations of getName should invoke this method, so |
|
270 |
* that the pre-JDK 1.6 "exitVM" and current "exitVM.*" permission are |
|
271 |
* equivalent in equals/hashCode methods. |
|
272 |
* |
|
273 |
* @return the canonical name of this BasicPermission. |
|
274 |
*/ |
|
275 |
final String getCanonicalName() { |
|
276 |
return exitVM ? "exitVM.*" : getName(); |
|
277 |
} |
|
278 |
} |
|
279 |
||
280 |
/** |
|
281 |
* A BasicPermissionCollection stores a collection |
|
282 |
* of BasicPermission permissions. BasicPermission objects |
|
283 |
* must be stored in a manner that allows them to be inserted in any |
|
284 |
* order, but enable the implies function to evaluate the implies |
|
285 |
* method in an efficient (and consistent) manner. |
|
286 |
* |
|
287 |
* A BasicPermissionCollection handles comparing a permission like "a.b.c.d.e" |
|
288 |
* with a Permission such as "a.b.*", or "*". |
|
289 |
* |
|
290 |
* @see java.security.Permission |
|
291 |
* @see java.security.Permissions |
|
292 |
* |
|
293 |
* |
|
294 |
* @author Roland Schemers |
|
295 |
* |
|
296 |
* @serial include |
|
297 |
*/ |
|
298 |
||
299 |
final class BasicPermissionCollection |
|
14014 | 300 |
extends PermissionCollection |
301 |
implements java.io.Serializable |
|
2 | 302 |
{ |
303 |
||
304 |
private static final long serialVersionUID = 739301742472979399L; |
|
305 |
||
306 |
/** |
|
307 |
* Key is name, value is permission. All permission objects in |
|
308 |
* collection must be of the same type. |
|
309 |
* Not serialized; see serialization section at end of class. |
|
310 |
*/ |
|
311 |
private transient Map<String, Permission> perms; |
|
312 |
||
313 |
/** |
|
18579
b678846778ad
8019360: Cleanup of the javadoc <code> tag in java.security.*
juh
parents:
14668
diff
changeset
|
314 |
* This is set to {@code true} if this BasicPermissionCollection |
2 | 315 |
* contains a BasicPermission with '*' as its permission name. |
316 |
* |
|
317 |
* @see #serialPersistentFields |
|
318 |
*/ |
|
319 |
private boolean all_allowed; |
|
320 |
||
321 |
/** |
|
322 |
* The class to which all BasicPermissions in this |
|
323 |
* BasicPermissionCollection belongs. |
|
324 |
* |
|
325 |
* @see #serialPersistentFields |
|
326 |
*/ |
|
10336
0bb1999251f8
7064075: Security libraries don't build with javac -Xlint:all,-deprecation -Werror
jjg
parents:
9035
diff
changeset
|
327 |
private Class<?> permClass; |
2 | 328 |
|
329 |
/** |
|
330 |
* Create an empty BasicPermissionCollection object. |
|
331 |
* |
|
332 |
*/ |
|
333 |
||
10336
0bb1999251f8
7064075: Security libraries don't build with javac -Xlint:all,-deprecation -Werror
jjg
parents:
9035
diff
changeset
|
334 |
public BasicPermissionCollection(Class<?> clazz) { |
2 | 335 |
perms = new HashMap<String, Permission>(11); |
336 |
all_allowed = false; |
|
337 |
permClass = clazz; |
|
338 |
} |
|
339 |
||
340 |
/** |
|
341 |
* Adds a permission to the BasicPermissions. The key for the hash is |
|
342 |
* permission.path. |
|
343 |
* |
|
344 |
* @param permission the Permission object to add. |
|
345 |
* |
|
346 |
* @exception IllegalArgumentException - if the permission is not a |
|
347 |
* BasicPermission, or if |
|
348 |
* the permission is not of the |
|
349 |
* same Class as the other |
|
350 |
* permissions in this collection. |
|
351 |
* |
|
352 |
* @exception SecurityException - if this BasicPermissionCollection object |
|
353 |
* has been marked readonly |
|
354 |
*/ |
|
14014 | 355 |
public void add(Permission permission) { |
2 | 356 |
if (! (permission instanceof BasicPermission)) |
357 |
throw new IllegalArgumentException("invalid permission: "+ |
|
358 |
permission); |
|
359 |
if (isReadOnly()) |
|
360 |
throw new SecurityException("attempt to add a Permission to a readonly PermissionCollection"); |
|
361 |
||
362 |
BasicPermission bp = (BasicPermission) permission; |
|
363 |
||
364 |
// make sure we only add new BasicPermissions of the same class |
|
365 |
// Also check null for compatibility with deserialized form from |
|
366 |
// previous versions. |
|
367 |
if (permClass == null) { |
|
368 |
// adding first permission |
|
369 |
permClass = bp.getClass(); |
|
370 |
} else { |
|
371 |
if (bp.getClass() != permClass) |
|
372 |
throw new IllegalArgumentException("invalid permission: " + |
|
373 |
permission); |
|
374 |
} |
|
375 |
||
376 |
synchronized (this) { |
|
377 |
perms.put(bp.getCanonicalName(), permission); |
|
378 |
} |
|
379 |
||
380 |
// No sync on all_allowed; staleness OK |
|
381 |
if (!all_allowed) { |
|
382 |
if (bp.getCanonicalName().equals("*")) |
|
383 |
all_allowed = true; |
|
384 |
} |
|
385 |
} |
|
386 |
||
387 |
/** |
|
388 |
* Check and see if this set of permissions implies the permissions |
|
389 |
* expressed in "permission". |
|
390 |
* |
|
14014 | 391 |
* @param permission the Permission object to compare |
2 | 392 |
* |
393 |
* @return true if "permission" is a proper subset of a permission in |
|
394 |
* the set, false if not. |
|
395 |
*/ |
|
14014 | 396 |
public boolean implies(Permission permission) { |
2 | 397 |
if (! (permission instanceof BasicPermission)) |
14014 | 398 |
return false; |
2 | 399 |
|
400 |
BasicPermission bp = (BasicPermission) permission; |
|
401 |
||
402 |
// random subclasses of BasicPermission do not imply each other |
|
403 |
if (bp.getClass() != permClass) |
|
404 |
return false; |
|
405 |
||
406 |
// short circuit if the "*" Permission was added |
|
407 |
if (all_allowed) |
|
408 |
return true; |
|
409 |
||
410 |
// strategy: |
|
411 |
// Check for full match first. Then work our way up the |
|
412 |
// path looking for matches on a.b..* |
|
413 |
||
414 |
String path = bp.getCanonicalName(); |
|
415 |
//System.out.println("check "+path); |
|
416 |
||
417 |
Permission x; |
|
418 |
||
419 |
synchronized (this) { |
|
420 |
x = perms.get(path); |
|
421 |
} |
|
422 |
||
423 |
if (x != null) { |
|
424 |
// we have a direct hit! |
|
425 |
return x.implies(permission); |
|
426 |
} |
|
427 |
||
428 |
// work our way up the tree... |
|
429 |
int last, offset; |
|
430 |
||
431 |
offset = path.length()-1; |
|
432 |
||
24685
215fa91e1b4c
8044461: Cleanup new Boolean and single character strings
rriggs
parents:
21334
diff
changeset
|
433 |
while ((last = path.lastIndexOf('.', offset)) != -1) { |
2 | 434 |
|
435 |
path = path.substring(0, last+1) + "*"; |
|
436 |
//System.out.println("check "+path); |
|
437 |
||
438 |
synchronized (this) { |
|
439 |
x = perms.get(path); |
|
440 |
} |
|
441 |
||
442 |
if (x != null) { |
|
443 |
return x.implies(permission); |
|
444 |
} |
|
445 |
offset = last -1; |
|
446 |
} |
|
447 |
||
448 |
// we don't have to check for "*" as it was already checked |
|
449 |
// at the top (all_allowed), so we just return false |
|
450 |
return false; |
|
451 |
} |
|
452 |
||
453 |
/** |
|
454 |
* Returns an enumeration of all the BasicPermission objects in the |
|
455 |
* container. |
|
456 |
* |
|
457 |
* @return an enumeration of all the BasicPermission objects. |
|
458 |
*/ |
|
459 |
public Enumeration<Permission> elements() { |
|
460 |
// Convert Iterator of Map values into an Enumeration |
|
461 |
synchronized (this) { |
|
462 |
return Collections.enumeration(perms.values()); |
|
463 |
} |
|
464 |
} |
|
465 |
||
466 |
// Need to maintain serialization interoperability with earlier releases, |
|
467 |
// which had the serializable field: |
|
468 |
// |
|
469 |
// @serial the Hashtable is indexed by the BasicPermission name |
|
470 |
// |
|
471 |
// private Hashtable permissions; |
|
472 |
/** |
|
473 |
* @serialField permissions java.util.Hashtable |
|
474 |
* The BasicPermissions in this BasicPermissionCollection. |
|
475 |
* All BasicPermissions in the collection must belong to the same class. |
|
476 |
* The Hashtable is indexed by the BasicPermission name; the value |
|
477 |
* of the Hashtable entry is the permission. |
|
478 |
* @serialField all_allowed boolean |
|
18579
b678846778ad
8019360: Cleanup of the javadoc <code> tag in java.security.*
juh
parents:
14668
diff
changeset
|
479 |
* This is set to {@code true} if this BasicPermissionCollection |
2 | 480 |
* contains a BasicPermission with '*' as its permission name. |
481 |
* @serialField permClass java.lang.Class |
|
482 |
* The class to which all BasicPermissions in this |
|
483 |
* BasicPermissionCollection belongs. |
|
484 |
*/ |
|
485 |
private static final ObjectStreamField[] serialPersistentFields = { |
|
486 |
new ObjectStreamField("permissions", Hashtable.class), |
|
487 |
new ObjectStreamField("all_allowed", Boolean.TYPE), |
|
488 |
new ObjectStreamField("permClass", Class.class), |
|
489 |
}; |
|
490 |
||
491 |
/** |
|
492 |
* @serialData Default fields. |
|
493 |
*/ |
|
494 |
/* |
|
495 |
* Writes the contents of the perms field out as a Hashtable for |
|
496 |
* serialization compatibility with earlier releases. all_allowed |
|
497 |
* and permClass unchanged. |
|
498 |
*/ |
|
499 |
private void writeObject(ObjectOutputStream out) throws IOException { |
|
500 |
// Don't call out.defaultWriteObject() |
|
501 |
||
502 |
// Copy perms into a Hashtable |
|
503 |
Hashtable<String, Permission> permissions = |
|
7970
af1579474d16
7008728: diamond conversion of basic security, permissions, authentication
smarks
parents:
5506
diff
changeset
|
504 |
new Hashtable<>(perms.size()*2); |
2 | 505 |
|
506 |
synchronized (this) { |
|
507 |
permissions.putAll(perms); |
|
508 |
} |
|
509 |
||
510 |
// Write out serializable fields |
|
511 |
ObjectOutputStream.PutField pfields = out.putFields(); |
|
512 |
pfields.put("all_allowed", all_allowed); |
|
513 |
pfields.put("permissions", permissions); |
|
514 |
pfields.put("permClass", permClass); |
|
515 |
out.writeFields(); |
|
516 |
} |
|
517 |
||
518 |
/** |
|
519 |
* readObject is called to restore the state of the |
|
520 |
* BasicPermissionCollection from a stream. |
|
521 |
*/ |
|
522 |
private void readObject(java.io.ObjectInputStream in) |
|
523 |
throws IOException, ClassNotFoundException |
|
524 |
{ |
|
525 |
// Don't call defaultReadObject() |
|
526 |
||
527 |
// Read in serialized fields |
|
528 |
ObjectInputStream.GetField gfields = in.readFields(); |
|
529 |
||
530 |
// Get permissions |
|
10336
0bb1999251f8
7064075: Security libraries don't build with javac -Xlint:all,-deprecation -Werror
jjg
parents:
9035
diff
changeset
|
531 |
// writeObject writes a Hashtable<String, Permission> for the |
0bb1999251f8
7064075: Security libraries don't build with javac -Xlint:all,-deprecation -Werror
jjg
parents:
9035
diff
changeset
|
532 |
// permissions key, so this cast is safe, unless the data is corrupt. |
0bb1999251f8
7064075: Security libraries don't build with javac -Xlint:all,-deprecation -Werror
jjg
parents:
9035
diff
changeset
|
533 |
@SuppressWarnings("unchecked") |
2 | 534 |
Hashtable<String, Permission> permissions = |
535 |
(Hashtable<String, Permission>)gfields.get("permissions", null); |
|
536 |
perms = new HashMap<String, Permission>(permissions.size()*2); |
|
537 |
perms.putAll(permissions); |
|
538 |
||
539 |
// Get all_allowed |
|
540 |
all_allowed = gfields.get("all_allowed", false); |
|
541 |
||
542 |
// Get permClass |
|
10336
0bb1999251f8
7064075: Security libraries don't build with javac -Xlint:all,-deprecation -Werror
jjg
parents:
9035
diff
changeset
|
543 |
permClass = (Class<?>) gfields.get("permClass", null); |
2 | 544 |
|
545 |
if (permClass == null) { |
|
546 |
// set permClass |
|
547 |
Enumeration<Permission> e = permissions.elements(); |
|
548 |
if (e.hasMoreElements()) { |
|
549 |
Permission p = e.nextElement(); |
|
550 |
permClass = p.getClass(); |
|
551 |
} |
|
552 |
} |
|
553 |
} |
|
554 |
} |