1 /*
2 * Copyright (c) 1997, 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 sun.security.provider;
27
28 import java.io.*;
29 import java.lang.reflect.*;
30 import java.net.MalformedURLException;
31 import java.net.URL;
32 import java.net.URI;
33 import java.nio.file.Files;
34 import java.nio.file.Path;
35 import java.util.*;
36 import java.security.*;
37 import java.security.cert.Certificate;
38 import java.security.cert.X509Certificate;
39 import javax.security.auth.Subject;
40 import javax.security.auth.x500.X500Principal;
41 import java.net.SocketPermission;
42 import java.net.NetPermission;
43 import java.util.concurrent.ConcurrentHashMap;
44 import jdk.internal.access.JavaSecurityAccess;
45 import static jdk.internal.access.JavaSecurityAccess.ProtectionDomainCache;
46 import jdk.internal.access.SharedSecrets;
47 import jdk.internal.util.StaticProperty;
48 import sun.security.util.*;
49 import sun.net.www.ParseUtil;
50
51 /**
52 * This class represents a default Policy implementation for the
53 * "JavaPolicy" type.
54 *
55 * <p> This object stores the policy for the entire Java runtime,
56 * and is the amalgamation of multiple static policy
57 * configurations that resides in files.
58 * The algorithm for locating the policy file(s) and reading their
59 * information into this <code>Policy</code> object is:
60 *
61 * <ol>
62 * <li>
63 * Read in and load the default policy file named
64 * <JAVA_HOME>/lib/security/default.policy. <JAVA_HOME> refers
65 * to the value of the java.home system property, and specifies the directory
66 * where the JRE is installed. This policy file grants permissions to the
67 * modules loaded by the platform class loader. If the default policy file
68 * cannot be loaded, a fatal InternalError is thrown as these permissions
69 * are needed in order for the runtime to operate correctly.
70 * <li>
71 * Loop through the <code>java.security.Security</code> properties,
72 * and <i>policy.url.1</i>, <i>policy.url.2</i>, ...,
73 * <i>policy.url.X</i>". These properties are set
74 * in the Java security properties file, which is located in the file named
75 * <JAVA_HOME>/conf/security/java.security.
76 * Each property value specifies a <code>URL</code> pointing to a
77 * policy file to be loaded. Read in and load each policy.
78 *
79 * If none of these could be loaded, use a builtin static policy
80 * equivalent to the conf/security/java.policy file.
81 *
82 * <li>
83 * The <code>java.lang.System</code> property <i>java.security.policy</i>
84 * may also be set to a <code>URL</code> pointing to another policy file
85 * (which is the case when a user uses the -D switch at runtime).
86 * If this property is defined, and its use is allowed by the
87 * security property file (the Security property,
88 * <i>policy.allowSystemProperty</i> is set to <i>true</i>),
89 * also load that policy.
90 *
91 * If the <i>java.security.policy</i> property is defined using
92 * "==" (rather than "="), then load the specified policy file and ignore
93 * all other configured policies. Note, that the default.policy file is
94 * also loaded, as specified in the first step of the algorithm above.
95 * If the specified policy file cannot be loaded, use a builtin static policy
96 * equivalent to the default conf/security/java.policy file.
97 * </ol>
98 *
99 * Each policy file consists of one or more grant entries, each of
100 * which consists of a number of permission entries.
101 *
102 * <pre>
103 * grant signedBy "<b>alias</b>", codeBase "<b>URL</b>",
104 * principal <b>principalClass</b> "<b>principalName</b>",
105 * principal <b>principalClass</b> "<b>principalName</b>",
106 * ... {
107 *
108 * permission <b>Type</b> "<b>name</b> "<b>action</b>",
109 * signedBy "<b>alias</b>";
110 * permission <b>Type</b> "<b>name</b> "<b>action</b>",
111 * signedBy "<b>alias</b>";
112 * ....
113 * };
114 * </pre>
115 *
116 * All non-bold items above must appear as is (although case
117 * doesn't matter and some are optional, as noted below).
118 * principal entries are optional and need not be present.
119 * Italicized items represent variable values.
120 *
121 * <p> A grant entry must begin with the word <code>grant</code>.
122 * The <code>signedBy</code>,<code>codeBase</code> and <code>principal</code>
123 * name/value pairs are optional.
124 * If they are not present, then any signer (including unsigned code)
125 * will match, and any codeBase will match.
126 * Note that the <i>principalClass</i>
127 * may be set to the wildcard value, *, which allows it to match
128 * any <code>Principal</code> class. In addition, the <i>principalName</i>
129 * may also be set to the wildcard value, *, allowing it to match
130 * any <code>Principal</code> name. When setting the <i>principalName</i>
131 * to the *, do not surround the * with quotes.
132 *
133 * <p> A permission entry must begin with the word <code>permission</code>.
134 * The word <code><i>Type</i></code> in the template above is
135 * a specific permission type, such as <code>java.io.FilePermission</code>
136 * or <code>java.lang.RuntimePermission</code>.
137 *
138 * <p> The "<i>action</i>" is required for
139 * many permission types, such as <code>java.io.FilePermission</code>
140 * (where it specifies what type of file access that is permitted).
141 * It is not required for categories such as
142 * <code>java.lang.RuntimePermission</code>
143 * where it is not necessary - you either have the
144 * permission specified by the <code>"<i>name</i>"</code>
145 * value following the type name or you don't.
146 *
147 * <p> The <code>signedBy</code> name/value pair for a permission entry
148 * is optional. If present, it indicates a signed permission. That is,
149 * the permission class itself must be signed by the given alias in
150 * order for it to be granted. For example,
151 * suppose you have the following grant entry:
152 *
153 * <pre>
154 * grant principal foo.com.Principal "Duke" {
155 * permission Foo "foobar", signedBy "FooSoft";
156 * }
157 * </pre>
158 *
159 * <p> Then this permission of type <i>Foo</i> is granted if the
160 * <code>Foo.class</code> permission has been signed by the
161 * "FooSoft" alias, or if XXX <code>Foo.class</code> is a
162 * system class (i.e., is found on the CLASSPATH).
163 *
164 * <p> Items that appear in an entry must appear in the specified order
165 * (<code>permission</code>, <i>Type</i>, "<i>name</i>", and
166 * "<i>action</i>"). An entry is terminated with a semicolon.
167 *
168 * <p> Case is unimportant for the identifiers (<code>permission</code>,
169 * <code>signedBy</code>, <code>codeBase</code>, etc.) but is
170 * significant for the <i>Type</i>
171 * or for any string that is passed in as a value.
172 *
173 * <p> An example of two entries in a policy configuration file is
174 * <pre>
175 * // if the code is comes from "foo.com" and is running as "Duke",
176 * // grant it read/write to all files in /tmp.
177 *
178 * grant codeBase "foo.com", principal foo.com.Principal "Duke" {
179 * permission java.io.FilePermission "/tmp/*", "read,write";
180 * };
181 *
182 * // grant any code running as "Duke" permission to read
183 * // the "java.vendor" Property.
184 *
185 * grant principal foo.com.Principal "Duke" {
186 * permission java.util.PropertyPermission "java.vendor";
187 *
188 *
189 * </pre>
190 * This Policy implementation supports special handling of any
191 * permission that contains the string, "<b>${{self}}</b>", as part of
192 * its target name. When such a permission is evaluated
193 * (such as during a security check), <b>${{self}}</b> is replaced
194 * with one or more Principal class/name pairs. The exact
195 * replacement performed depends upon the contents of the
196 * grant clause to which the permission belongs.
197 * <p>
198 *
199 * If the grant clause does not contain any principal information,
200 * the permission will be ignored (permissions containing
201 * <b>${{self}}</b> in their target names are only valid in the context
202 * of a principal-based grant clause). For example, BarPermission
203 * will always be ignored in the following grant clause:
204 *
205 * <pre>
206 * grant codebase "www.foo.com", signedby "duke" {
207 * permission BarPermission "... ${{self}} ...";
208 * };
209 * </pre>
210 *
211 * If the grant clause contains principal information, <b>${{self}}</b>
212 * will be replaced with that same principal information.
213 * For example, <b>${{self}}</b> in BarPermission will be replaced by
214 * <b>javax.security.auth.x500.X500Principal "cn=Duke"</b>
215 * in the following grant clause:
216 *
217 * <pre>
218 * grant principal javax.security.auth.x500.X500Principal "cn=Duke" {
219 * permission BarPermission "... ${{self}} ...";
220 * };
221 * </pre>
222 *
223 * If there is a comma-separated list of principals in the grant
224 * clause, then <b>${{self}}</b> will be replaced by the same
225 * comma-separated list or principals.
226 * In the case where both the principal class and name are
227 * wildcarded in the grant clause, <b>${{self}}</b> is replaced
228 * with all the principals associated with the <code>Subject</code>
229 * in the current <code>AccessControlContext</code>.
230 *
231 * <p> For PrivateCredentialPermissions, you can also use "<b>self</b>"
232 * instead of "<b>${{self}}</b>". However the use of "<b>self</b>" is
233 * deprecated in favour of "<b>${{self}}</b>".
234 *
235 * @see java.security.CodeSource
236 * @see java.security.Permissions
237 * @see java.security.ProtectionDomain
238 */
239 public class PolicyFile extends java.security.Policy {
240
241 private static final Debug debug = Debug.getInstance("policy");
242
243 private static final String SELF = "${{self}}";
244 private static final String X500PRINCIPAL =
245 "javax.security.auth.x500.X500Principal";
246 private static final String POLICY = "java.security.policy";
247 private static final String POLICY_URL = "policy.url.";
248
249 private static final int DEFAULT_CACHE_SIZE = 1;
250
251 // contains the policy grant entries, PD cache, and alias mapping
252 // can be updated if refresh() is called
253 private volatile PolicyInfo policyInfo;
254
255 private boolean expandProperties = true;
256 private boolean allowSystemProperties = true;
257 private boolean notUtf8 = false;
258 private URL url;
259
260 // for use with the reflection API
261 private static final Class<?>[] PARAMS0 = { };
262 private static final Class<?>[] PARAMS1 = { String.class };
263 private static final Class<?>[] PARAMS2 = { String.class, String.class };
264
265 /**
266 * When a policy file has a syntax error, the exception code may generate
267 * another permission check and this can cause the policy file to be parsed
268 * repeatedly, leading to a StackOverflowError or ClassCircularityError.
269 * To avoid this, this set is populated with policy files that have been
270 * previously parsed and have syntax errors, so that they can be
271 * subsequently ignored.
272 */
273 private static Set<URL> badPolicyURLs =
274 Collections.newSetFromMap(new ConcurrentHashMap<URL,Boolean>());
275
276 /**
277 * Initializes the Policy object and reads the default policy
278 * configuration file(s) into the Policy object.
279 */
280 public PolicyFile() {
281 init((URL)null);
282 }
283
284 /**
285 * Initializes the Policy object and reads the default policy
286 * from the specified URL only.
287 */
288 public PolicyFile(URL url) {
289 this.url = url;
290 init(url);
291 }
292
293 /**
294 * Initializes the Policy object and reads the default policy
295 * configuration file(s) into the Policy object.
296 *
297 * See the class description for details on the algorithm used to
298 * initialize the Policy object.
299 */
300 private void init(URL url) {
301 // Properties are set once for each init(); ignore changes between
302 // between diff invocations of initPolicyFile(policy, url, info).
303 String numCacheStr =
304 AccessController.doPrivileged(new PrivilegedAction<>() {
305 @Override
306 public String run() {
307 expandProperties = "true".equalsIgnoreCase
308 (Security.getProperty("policy.expandProperties"));
309 allowSystemProperties = "true".equalsIgnoreCase
310 (Security.getProperty("policy.allowSystemProperty"));
311 notUtf8 = "false".equalsIgnoreCase
312 (System.getProperty("sun.security.policy.utf8"));
313 return System.getProperty("sun.security.policy.numcaches");
314 }});
315
316 int numCaches;
317 if (numCacheStr != null) {
318 try {
319 numCaches = Integer.parseInt(numCacheStr);
320 } catch (NumberFormatException e) {
321 numCaches = DEFAULT_CACHE_SIZE;
322 }
323 } else {
324 numCaches = DEFAULT_CACHE_SIZE;
325 }
326 // System.out.println("number caches=" + numCaches);
327 PolicyInfo newInfo = new PolicyInfo(numCaches);
328 initPolicyFile(newInfo, url);
329 policyInfo = newInfo;
330 }
331
332 private void initPolicyFile(final PolicyInfo newInfo, final URL url) {
333
334 // always load default.policy
335 AccessController.doPrivileged(new PrivilegedAction<>() {
336 @Override
337 public Void run() {
338 initDefaultPolicy(newInfo);
339 return null;
340 }
341 });
342
343 if (url != null) {
344
345 /**
346 * If the caller specified a URL via Policy.getInstance,
347 * we only read from default.policy and that URL.
348 */
349
350 if (debug != null) {
351 debug.println("reading " + url);
352 }
353 AccessController.doPrivileged(new PrivilegedAction<>() {
354 @Override
355 public Void run() {
356 if (init(url, newInfo) == false) {
357 // use static policy if all else fails
358 initStaticPolicy(newInfo);
359 }
360 return null;
361 }
362 });
363
364 } else {
365
366 /**
367 * Caller did not specify URL via Policy.getInstance.
368 * Read from URLs listed in the java.security properties file.
369 */
370
371 boolean loaded_one = initPolicyFile(POLICY, POLICY_URL, newInfo);
372 // To maintain strict backward compatibility
373 // we load the static policy only if POLICY load failed
374 if (!loaded_one) {
375 // use static policy if all else fails
376 initStaticPolicy(newInfo);
377 }
378 }
379 }
380
381 private boolean initPolicyFile(final String propname, final String urlname,
382 final PolicyInfo newInfo) {
383 boolean loadedPolicy =
384 AccessController.doPrivileged(new PrivilegedAction<>() {
385 @Override
386 public Boolean run() {
387 boolean loaded_policy = false;
388
389 if (allowSystemProperties) {
390 String extra_policy = System.getProperty(propname);
391 if (extra_policy != null) {
392 boolean overrideAll = false;
393 if (extra_policy.startsWith("=")) {
394 overrideAll = true;
395 extra_policy = extra_policy.substring(1);
396 }
397 try {
398 extra_policy =
399 PropertyExpander.expand(extra_policy);
400 URL policyURL;
401
402 File policyFile = new File(extra_policy);
403 if (policyFile.exists()) {
404 policyURL = ParseUtil.fileToEncodedURL
405 (new File(policyFile.getCanonicalPath()));
406 } else {
407 policyURL = new URL(extra_policy);
408 }
409 if (debug != null) {
410 debug.println("reading "+policyURL);
411 }
412 if (init(policyURL, newInfo)) {
413 loaded_policy = true;
414 }
415 } catch (Exception e) {
416 // ignore.
417 if (debug != null) {
418 debug.println("caught exception: "+e);
419 }
420 }
421 if (overrideAll) {
422 if (debug != null) {
423 debug.println("overriding other policies!");
424 }
425 return Boolean.valueOf(loaded_policy);
426 }
427 }
428 }
429
430 int n = 1;
431 String policy_uri;
432
433 while ((policy_uri = Security.getProperty(urlname+n)) != null) {
434 try {
435 URL policy_url = null;
436 String expanded_uri = PropertyExpander.expand
437 (policy_uri).replace(File.separatorChar, '/');
438
439 if (policy_uri.startsWith("file:${java.home}/") ||
440 policy_uri.startsWith("file:${user.home}/")) {
441
442 // this special case accommodates
443 // the situation java.home/user.home
444 // expand to a single slash, resulting in
445 // a file://foo URI
446 policy_url = new File
447 (expanded_uri.substring(5)).toURI().toURL();
448 } else {
449 policy_url = new URI(expanded_uri).toURL();
450 }
451
452 if (debug != null) {
453 debug.println("reading " + policy_url);
454 }
455 if (init(policy_url, newInfo)) {
456 loaded_policy = true;
457 }
458 } catch (Exception e) {
459 if (debug != null) {
460 debug.println(
461 "Debug info only. Error reading policy " +e);
462 e.printStackTrace();
463 }
464 // ignore that policy
465 }
466 n++;
467 }
468 return Boolean.valueOf(loaded_policy);
469 }
470 });
471
472 return loadedPolicy;
473 }
474
475 private void initDefaultPolicy(PolicyInfo newInfo) {
476 Path defaultPolicy = Path.of(StaticProperty.javaHome(),
477 "lib",
478 "security",
479 "default.policy");
480 if (debug != null) {
481 debug.println("reading " + defaultPolicy);
482 }
483 try (BufferedReader br = Files.newBufferedReader(defaultPolicy)) {
484
485 PolicyParser pp = new PolicyParser(expandProperties);
486 pp.read(br);
487
488 Enumeration<PolicyParser.GrantEntry> enum_ = pp.grantElements();
489 while (enum_.hasMoreElements()) {
490 PolicyParser.GrantEntry ge = enum_.nextElement();
491 addGrantEntry(ge, null, newInfo);
492 }
493 } catch (Exception e) {
494 throw new InternalError("Failed to load default.policy", e);
495 }
496 }
497
498 /**
499 * Reads a policy configuration into the Policy object using a
500 * Reader object.
501 */
502 private boolean init(URL policy, PolicyInfo newInfo) {
503
504 // skip parsing policy file if it has been previously parsed and
505 // has syntax errors
506 if (badPolicyURLs.contains(policy)) {
507 if (debug != null) {
508 debug.println("skipping bad policy file: " + policy);
509 }
510 return false;
511 }
512
513 try (InputStreamReader isr =
514 getInputStreamReader(PolicyUtil.getInputStream(policy))) {
515
516 PolicyParser pp = new PolicyParser(expandProperties);
517 pp.read(isr);
518
519 KeyStore keyStore = null;
520 try {
521 keyStore = PolicyUtil.getKeyStore
522 (policy,
523 pp.getKeyStoreUrl(),
524 pp.getKeyStoreType(),
525 pp.getKeyStoreProvider(),
526 pp.getStorePassURL(),
527 debug);
528 } catch (Exception e) {
529 // ignore, treat it like we have no keystore
530 if (debug != null) {
531 debug.println("Debug info only. Ignoring exception.");
532 e.printStackTrace();
533 }
534 }
535
536 Enumeration<PolicyParser.GrantEntry> enum_ = pp.grantElements();
537 while (enum_.hasMoreElements()) {
538 PolicyParser.GrantEntry ge = enum_.nextElement();
539 addGrantEntry(ge, keyStore, newInfo);
540 }
541 return true;
542 } catch (PolicyParser.ParsingException pe) {
543 // record bad policy file to avoid later reparsing it
544 badPolicyURLs.add(policy);
545 Object[] source = {policy, pe.getNonlocalizedMessage()};
546 System.err.println(LocalizedMessage.getNonlocalized
547 (POLICY + ".error.parsing.policy.message", source));
548 if (debug != null) {
549 pe.printStackTrace();
550 }
551 } catch (Exception e) {
552 if (debug != null) {
553 debug.println("error parsing "+policy);
554 debug.println(e.toString());
555 e.printStackTrace();
556 }
557 }
558
559 return false;
560 }
561
562 private InputStreamReader getInputStreamReader(InputStream is)
563 throws IOException {
564 /*
565 * Read in policy using UTF-8 by default.
566 *
567 * Check non-standard system property to see if the default encoding
568 * should be used instead.
569 */
570 return (notUtf8)
571 ? new InputStreamReader(is)
572 : new InputStreamReader(is, "UTF-8");
573 }
574
575 private void initStaticPolicy(final PolicyInfo newInfo) {
576 if (debug != null) {
577 debug.println("Initializing with static permissions");
578 }
579 AccessController.doPrivileged(new PrivilegedAction<>() {
580 @Override
581 public Void run() {
582 PolicyEntry pe = new PolicyEntry(new CodeSource(null,
583 (Certificate[]) null));
584 pe.add(SecurityConstants.LOCAL_LISTEN_PERMISSION);
585 pe.add(new PropertyPermission("java.version",
586 SecurityConstants.PROPERTY_READ_ACTION));
587 pe.add(new PropertyPermission("java.vendor",
588 SecurityConstants.PROPERTY_READ_ACTION));
589 pe.add(new PropertyPermission("java.vendor.url",
590 SecurityConstants.PROPERTY_READ_ACTION));
591 pe.add(new PropertyPermission("java.class.version",
592 SecurityConstants.PROPERTY_READ_ACTION));
593 pe.add(new PropertyPermission("os.name",
594 SecurityConstants.PROPERTY_READ_ACTION));
595 pe.add(new PropertyPermission("os.version",
596 SecurityConstants.PROPERTY_READ_ACTION));
597 pe.add(new PropertyPermission("os.arch",
598 SecurityConstants.PROPERTY_READ_ACTION));
599 pe.add(new PropertyPermission("file.separator",
600 SecurityConstants.PROPERTY_READ_ACTION));
601 pe.add(new PropertyPermission("path.separator",
602 SecurityConstants.PROPERTY_READ_ACTION));
603 pe.add(new PropertyPermission("line.separator",
604 SecurityConstants.PROPERTY_READ_ACTION));
605 pe.add(new PropertyPermission
606 ("java.specification.version",
607 SecurityConstants.PROPERTY_READ_ACTION));
608 pe.add(new PropertyPermission
609 ("java.specification.vendor",
610 SecurityConstants.PROPERTY_READ_ACTION));
611 pe.add(new PropertyPermission
612 ("java.specification.name",
613 SecurityConstants.PROPERTY_READ_ACTION));
614 pe.add(new PropertyPermission
615 ("java.vm.specification.version",
616 SecurityConstants.PROPERTY_READ_ACTION));
617 pe.add(new PropertyPermission
618 ("java.vm.specification.vendor",
619 SecurityConstants.PROPERTY_READ_ACTION));
620 pe.add(new PropertyPermission
621 ("java.vm.specification.name",
622 SecurityConstants.PROPERTY_READ_ACTION));
623 pe.add(new PropertyPermission("java.vm.version",
624 SecurityConstants.PROPERTY_READ_ACTION));
625 pe.add(new PropertyPermission("java.vm.vendor",
626 SecurityConstants.PROPERTY_READ_ACTION));
627 pe.add(new PropertyPermission("java.vm.name",
628 SecurityConstants.PROPERTY_READ_ACTION));
629
630 // No need to sync because noone has access to newInfo yet
631 newInfo.policyEntries.add(pe);
632
633 return null;
634 }
635 });
636 }
637
638 /**
639 * Given a GrantEntry, create a codeSource.
640 *
641 * @return null if signedBy alias is not recognized
642 */
643 private CodeSource getCodeSource(PolicyParser.GrantEntry ge, KeyStore keyStore,
644 PolicyInfo newInfo) throws java.net.MalformedURLException
645 {
646 Certificate[] certs = null;
647 if (ge.signedBy != null) {
648 certs = getCertificates(keyStore, ge.signedBy, newInfo);
649 if (certs == null) {
650 // we don't have a key for this alias,
651 // just return
652 if (debug != null) {
653 debug.println(" -- No certs for alias '" +
654 ge.signedBy + "' - ignoring entry");
655 }
656 return null;
657 }
658 }
659
660 URL location;
661
662 if (ge.codeBase != null)
663 location = new URL(ge.codeBase);
664 else
665 location = null;
666
667 return (canonicalizeCodebase(new CodeSource(location, certs),false));
668 }
669
670 /**
671 * Add one policy entry to the list.
672 */
673 private void addGrantEntry(PolicyParser.GrantEntry ge,
674 KeyStore keyStore, PolicyInfo newInfo) {
675
676 if (debug != null) {
677 debug.println("Adding policy entry: ");
678 debug.println(" signedBy " + ge.signedBy);
679 debug.println(" codeBase " + ge.codeBase);
680 if (ge.principals != null) {
681 for (PolicyParser.PrincipalEntry pppe : ge.principals) {
682 debug.println(" " + pppe.toString());
683 }
684 }
685 }
686
687 try {
688 CodeSource codesource = getCodeSource(ge, keyStore, newInfo);
689 // skip if signedBy alias was unknown...
690 if (codesource == null) return;
691
692 // perform keystore alias principal replacement.
693 // for example, if alias resolves to X509 certificate,
694 // replace principal with: <X500Principal class> <SubjectDN>
695 // -- skip if alias is unknown
696 if (replacePrincipals(ge.principals, keyStore) == false)
697 return;
698 PolicyEntry entry = new PolicyEntry(codesource, ge.principals);
699 Enumeration<PolicyParser.PermissionEntry> enum_ =
700 ge.permissionElements();
701 while (enum_.hasMoreElements()) {
702 PolicyParser.PermissionEntry pe = enum_.nextElement();
703
704 try {
705 // perform ${{ ... }} expansions within permission name
706 expandPermissionName(pe, keyStore);
707
708 // XXX special case PrivateCredentialPermission-SELF
709 Permission perm;
710 if (pe.permission.equals
711 ("javax.security.auth.PrivateCredentialPermission") &&
712 pe.name.endsWith(" self")) {
713 pe.name = pe.name.substring(0, pe.name.indexOf("self"))
714 + SELF;
715 }
716 // check for self
717 if (pe.name != null && pe.name.indexOf(SELF) != -1) {
718 // Create a "SelfPermission" , it could be an
719 // an unresolved permission which will be resolved
720 // when implies is called
721 // Add it to entry
722 Certificate[] certs;
723 if (pe.signedBy != null) {
724 certs = getCertificates(keyStore,
725 pe.signedBy,
726 newInfo);
727 } else {
728 certs = null;
729 }
730 perm = new SelfPermission(pe.permission,
731 pe.name,
732 pe.action,
733 certs);
734 } else {
735 perm = getInstance(pe.permission,
736 pe.name,
737 pe.action);
738 }
739 entry.add(perm);
740 if (debug != null) {
741 debug.println(" "+perm);
742 }
743 } catch (ClassNotFoundException cnfe) {
744 Certificate[] certs;
745 if (pe.signedBy != null) {
746 certs = getCertificates(keyStore,
747 pe.signedBy,
748 newInfo);
749 } else {
750 certs = null;
751 }
752
753 // only add if we had no signer or we had
754 // a signer and found the keys for it.
755 if (certs != null || pe.signedBy == null) {
756 Permission perm = new UnresolvedPermission(
757 pe.permission,
758 pe.name,
759 pe.action,
760 certs);
761 entry.add(perm);
762 if (debug != null) {
763 debug.println(" "+perm);
764 }
765 }
766 } catch (java.lang.reflect.InvocationTargetException ite) {
767 Object[] source = {pe.permission,
768 ite.getTargetException().toString()};
769 System.err.println(
770 LocalizedMessage.getNonlocalized(
771 POLICY + ".error.adding.Permission.perm.message",
772 source));
773 } catch (Exception e) {
774 Object[] source = {pe.permission,
775 e.toString()};
776 System.err.println(
777 LocalizedMessage.getNonlocalized(
778 POLICY + ".error.adding.Permission.perm.message",
779 source));
780 }
781 }
782
783 // No need to sync because noone has access to newInfo yet
784 newInfo.policyEntries.add(entry);
785 } catch (Exception e) {
786 Object[] source = {e.toString()};
787 System.err.println(
788 LocalizedMessage.getNonlocalized(
789 POLICY + ".error.adding.Entry.message",
790 source));
791 }
792 if (debug != null)
793 debug.println();
794 }
795
796 /**
797 * Returns a new Permission object of the given Type. The Permission is
798 * created by getting the
799 * Class object using the <code>Class.forName</code> method, and using
800 * the reflection API to invoke the (String name, String actions)
801 * constructor on the
802 * object.
803 *
804 * @param type the type of Permission being created.
805 * @param name the name of the Permission being created.
806 * @param actions the actions of the Permission being created.
807 *
808 * @exception ClassNotFoundException if the particular Permission
809 * class could not be found.
810 *
811 * @exception IllegalAccessException if the class or initializer is
812 * not accessible.
813 *
814 * @exception InstantiationException if getInstance tries to
815 * instantiate an abstract class or an interface, or if the
816 * instantiation fails for some other reason.
817 *
818 * @exception NoSuchMethodException if the (String, String) constructor
819 * is not found.
820 *
821 * @exception InvocationTargetException if the underlying Permission
822 * constructor throws an exception.
823 *
824 */
825
826 private static final Permission getInstance(String type,
827 String name,
828 String actions)
829 throws ClassNotFoundException,
830 InstantiationException,
831 IllegalAccessException,
832 NoSuchMethodException,
833 InvocationTargetException
834 {
835 Class<?> pc = Class.forName(type, false, null);
836 Permission answer = getKnownPermission(pc, name, actions);
837 if (answer != null) {
838 return answer;
839 }
840 if (!Permission.class.isAssignableFrom(pc)) {
841 // not the right subtype
842 throw new ClassCastException(type + " is not a Permission");
843 }
844
845 if (name == null && actions == null) {
846 try {
847 Constructor<?> c = pc.getConstructor(PARAMS0);
848 return (Permission) c.newInstance(new Object[] {});
849 } catch (NoSuchMethodException ne) {
850 try {
851 Constructor<?> c = pc.getConstructor(PARAMS1);
852 return (Permission) c.newInstance(
853 new Object[] { name});
854 } catch (NoSuchMethodException ne1 ) {
855 Constructor<?> c = pc.getConstructor(PARAMS2);
856 return (Permission) c.newInstance(
857 new Object[] { name, actions });
858 }
859 }
860 } else {
861 if (name != null && actions == null) {
862 try {
863 Constructor<?> c = pc.getConstructor(PARAMS1);
864 return (Permission) c.newInstance(new Object[] { name});
865 } catch (NoSuchMethodException ne) {
866 Constructor<?> c = pc.getConstructor(PARAMS2);
867 return (Permission) c.newInstance(
868 new Object[] { name, actions });
869 }
870 } else {
871 Constructor<?> c = pc.getConstructor(PARAMS2);
872 return (Permission) c.newInstance(
873 new Object[] { name, actions });
874 }
875 }
876 }
877
878 /**
879 * Creates one of the well-known permissions in the java.base module
880 * directly instead of via reflection. Keep list short to not penalize
881 * permissions from other modules.
882 */
883 private static Permission getKnownPermission(Class<?> claz, String name,
884 String actions) {
885 if (claz.equals(FilePermission.class)) {
886 return new FilePermission(name, actions);
887 } else if (claz.equals(SocketPermission.class)) {
888 return new SocketPermission(name, actions);
889 } else if (claz.equals(RuntimePermission.class)) {
890 return new RuntimePermission(name, actions);
891 } else if (claz.equals(PropertyPermission.class)) {
892 return new PropertyPermission(name, actions);
893 } else if (claz.equals(NetPermission.class)) {
894 return new NetPermission(name, actions);
895 } else if (claz.equals(AllPermission.class)) {
896 return SecurityConstants.ALL_PERMISSION;
897 } else if (claz.equals(SecurityPermission.class)) {
898 return new SecurityPermission(name, actions);
899 } else {
900 return null;
901 }
902 }
903
904 /**
905 * Creates one of the well-known principals in the java.base module
906 * directly instead of via reflection. Keep list short to not penalize
907 * principals from other modules.
908 */
909 private static Principal getKnownPrincipal(Class<?> claz, String name) {
910 if (claz.equals(X500Principal.class)) {
911 return new X500Principal(name);
912 } else {
913 return null;
914 }
915 }
916
917 /**
918 * Fetch all certs associated with this alias.
919 */
920 private Certificate[] getCertificates
921 (KeyStore keyStore, String aliases, PolicyInfo newInfo) {
922
923 List<Certificate> vcerts = null;
924
925 StringTokenizer st = new StringTokenizer(aliases, ",");
926 int n = 0;
927
928 while (st.hasMoreTokens()) {
929 String alias = st.nextToken().trim();
930 n++;
931 Certificate cert = null;
932 // See if this alias's cert has already been cached
933 synchronized (newInfo.aliasMapping) {
934 cert = (Certificate)newInfo.aliasMapping.get(alias);
935
936 if (cert == null && keyStore != null) {
937
938 try {
939 cert = keyStore.getCertificate(alias);
940 } catch (KeyStoreException kse) {
941 // never happens, because keystore has already been loaded
942 // when we call this
943 }
944 if (cert != null) {
945 newInfo.aliasMapping.put(alias, cert);
946 newInfo.aliasMapping.put(cert, alias);
947 }
948 }
949 }
950
951 if (cert != null) {
952 if (vcerts == null)
953 vcerts = new ArrayList<>();
954 vcerts.add(cert);
955 }
956 }
957
958 // make sure n == vcerts.size, since we are doing a logical *and*
959 if (vcerts != null && n == vcerts.size()) {
960 Certificate[] certs = new Certificate[vcerts.size()];
961 vcerts.toArray(certs);
962 return certs;
963 } else {
964 return null;
965 }
966 }
967
968 /**
969 * Refreshes the policy object by re-reading all the policy files.
970 */
971 @Override public void refresh() {
972 init(url);
973 }
974
975 /**
976 * Evaluates the global policy for the permissions granted to
977 * the ProtectionDomain and tests whether the permission is
978 * granted.
979 *
980 * @param pd the ProtectionDomain to test
981 * @param p the Permission object to be tested for implication.
982 *
983 * @return true if "permission" is a proper subset of a permission
984 * granted to this ProtectionDomain.
985 *
986 * @see java.security.ProtectionDomain
987 */
988 @Override
989 public boolean implies(ProtectionDomain pd, Permission p) {
990 ProtectionDomainCache pdMap = policyInfo.getPdMapping();
991 PermissionCollection pc = pdMap.get(pd);
992
993 if (pc != null) {
994 return pc.implies(p);
995 }
996
997 pc = getPermissions(pd);
998 if (pc == null) {
999 return false;
1000 }
1001
1002 // cache mapping of protection domain to its PermissionCollection
1003 pdMap.put(pd, pc);
1004 return pc.implies(p);
1005 }
1006
1007 /**
1008 * Examines this <code>Policy</code> and returns the permissions granted
1009 * to the specified <code>ProtectionDomain</code>. This includes
1010 * the permissions currently associated with the domain as well
1011 * as the policy permissions granted to the domain's
1012 * CodeSource, ClassLoader, and Principals.
1013 *
1014 * <p> Note that this <code>Policy</code> implementation has
1015 * special handling for PrivateCredentialPermissions.
1016 * When this method encounters a <code>PrivateCredentialPermission</code>
1017 * which specifies "self" as the <code>Principal</code> class and name,
1018 * it does not add that <code>Permission</code> to the returned
1019 * <code>PermissionCollection</code>. Instead, it builds
1020 * a new <code>PrivateCredentialPermission</code>
1021 * for each <code>Principal</code> associated with the provided
1022 * <code>Subject</code>. Each new <code>PrivateCredentialPermission</code>
1023 * contains the same Credential class as specified in the
1024 * originally granted permission, as well as the Class and name
1025 * for the respective <code>Principal</code>.
1026 *
1027 * @param domain the Permissions granted to this
1028 * <code>ProtectionDomain</code> are returned.
1029 *
1030 * @return the Permissions granted to the provided
1031 * <code>ProtectionDomain</code>.
1032 */
1033 @Override
1034 public PermissionCollection getPermissions(ProtectionDomain domain) {
1035 Permissions perms = new Permissions();
1036
1037 if (domain == null)
1038 return perms;
1039
1040 // first get policy perms
1041 getPermissions(perms, domain);
1042
1043 // add static perms
1044 // - adding static perms after policy perms is necessary
1045 // to avoid a regression for 4301064
1046 PermissionCollection pc = domain.getPermissions();
1047 if (pc != null) {
1048 synchronized (pc) {
1049 Enumeration<Permission> e = pc.elements();
1050 while (e.hasMoreElements()) {
1051 perms.add(FilePermCompat.newPermPlusAltPath(e.nextElement()));
1052 }
1053 }
1054 }
1055
1056 return perms;
1057 }
1058
1059 /**
1060 * Examines this Policy and creates a PermissionCollection object with
1061 * the set of permissions for the specified CodeSource.
1062 *
1063 * @param codesource the CodeSource associated with the caller.
1064 * This encapsulates the original location of the code (where the code
1065 * came from) and the public key(s) of its signer.
1066 *
1067 * @return the set of permissions according to the policy.
1068 */
1069 @Override
1070 public PermissionCollection getPermissions(CodeSource codesource) {
1071 return getPermissions(new Permissions(), codesource);
1072 }
1073
1074 /**
1075 * Examines the global policy and returns the provided Permissions
1076 * object with additional permissions granted to the specified
1077 * ProtectionDomain.
1078 *
1079 * @param perms the Permissions to populate
1080 * @param pd the ProtectionDomain associated with the caller.
1081 *
1082 * @return the set of Permissions according to the policy.
1083 */
1084 private PermissionCollection getPermissions(Permissions perms,
1085 ProtectionDomain pd ) {
1086 if (debug != null) {
1087 debug.println("getPermissions:\n\t" + printPD(pd));
1088 }
1089
1090 final CodeSource cs = pd.getCodeSource();
1091 if (cs == null)
1092 return perms;
1093
1094 CodeSource canonCodeSource = AccessController.doPrivileged(
1095 new java.security.PrivilegedAction<>(){
1096 @Override
1097 public CodeSource run() {
1098 return canonicalizeCodebase(cs, true);
1099 }
1100 });
1101 return getPermissions(perms, canonCodeSource, pd.getPrincipals());
1102 }
1103
1104 /**
1105 * Examines the global policy and returns the provided Permissions
1106 * object with additional permissions granted to the specified
1107 * CodeSource.
1108 *
1109 * @param perms the permissions to populate
1110 * @param cs the codesource associated with the caller.
1111 * This encapsulates the original location of the code (where the code
1112 * came from) and the public key(s) of its signer.
1113 *
1114 * @return the set of permissions according to the policy.
1115 */
1116 private PermissionCollection getPermissions(Permissions perms,
1117 final CodeSource cs) {
1118
1119 if (cs == null)
1120 return perms;
1121
1122 CodeSource canonCodeSource = AccessController.doPrivileged(
1123 new PrivilegedAction<>(){
1124 @Override
1125 public CodeSource run() {
1126 return canonicalizeCodebase(cs, true);
1127 }
1128 });
1129
1130 return getPermissions(perms, canonCodeSource, null);
1131 }
1132
1133 private Permissions getPermissions(Permissions perms,
1134 final CodeSource cs,
1135 Principal[] principals) {
1136 for (PolicyEntry entry : policyInfo.policyEntries) {
1137 addPermissions(perms, cs, principals, entry);
1138 }
1139
1140 return perms;
1141 }
1142
1143 private void addPermissions(Permissions perms,
1144 final CodeSource cs,
1145 Principal[] principals,
1146 final PolicyEntry entry) {
1147
1148 if (debug != null) {
1149 debug.println("evaluate codesources:\n" +
1150 "\tPolicy CodeSource: " + entry.getCodeSource() + "\n" +
1151 "\tActive CodeSource: " + cs);
1152 }
1153
1154 // check to see if the CodeSource implies
1155 Boolean imp = AccessController.doPrivileged
1156 (new PrivilegedAction<>() {
1157 @Override
1158 public Boolean run() {
1159 return entry.getCodeSource().implies(cs);
1160 }
1161 });
1162 if (!imp.booleanValue()) {
1163 if (debug != null) {
1164 debug.println("evaluation (codesource) failed");
1165 }
1166
1167 // CodeSource does not imply - return and try next policy entry
1168 return;
1169 }
1170
1171 // check to see if the Principals imply
1172
1173 List<PolicyParser.PrincipalEntry> entryPs = entry.getPrincipals();
1174 if (debug != null) {
1175 List<PolicyParser.PrincipalEntry> accPs = new ArrayList<>();
1176 if (principals != null) {
1177 for (int i = 0; i < principals.length; i++) {
1178 accPs.add(new PolicyParser.PrincipalEntry
1179 (principals[i].getClass().getName(),
1180 principals[i].getName()));
1181 }
1182 }
1183 debug.println("evaluate principals:\n" +
1184 "\tPolicy Principals: " + entryPs + "\n" +
1185 "\tActive Principals: " + accPs);
1186 }
1187
1188 if (entryPs == null || entryPs.isEmpty()) {
1189
1190 // policy entry has no principals -
1191 // add perms regardless of principals in current ACC
1192
1193 addPerms(perms, principals, entry);
1194 if (debug != null) {
1195 debug.println("evaluation (codesource/principals) passed");
1196 }
1197 return;
1198
1199 } else if (principals == null || principals.length == 0) {
1200
1201 // current thread has no principals but this policy entry
1202 // has principals - perms are not added
1203
1204 if (debug != null) {
1205 debug.println("evaluation (principals) failed");
1206 }
1207 return;
1208 }
1209
1210 // current thread has principals and this policy entry
1211 // has principals. see if policy entry principals match
1212 // principals in current ACC
1213
1214 for (PolicyParser.PrincipalEntry pppe : entryPs) {
1215
1216 // Check for wildcards
1217 if (pppe.isWildcardClass()) {
1218 // a wildcard class matches all principals in current ACC
1219 continue;
1220 }
1221
1222 if (pppe.isWildcardName()) {
1223 // a wildcard name matches any principal with the same class
1224 if (wildcardPrincipalNameImplies(pppe.principalClass,
1225 principals)) {
1226 continue;
1227 }
1228 if (debug != null) {
1229 debug.println("evaluation (principal name wildcard) failed");
1230 }
1231 // policy entry principal not in current ACC -
1232 // immediately return and go to next policy entry
1233 return;
1234 }
1235
1236 Set<Principal> pSet = new HashSet<>(Arrays.asList(principals));
1237 Subject subject = new Subject(true, pSet,
1238 Collections.EMPTY_SET,
1239 Collections.EMPTY_SET);
1240 try {
1241 ClassLoader cl = Thread.currentThread().getContextClassLoader();
1242 Class<?> pClass = Class.forName(pppe.principalClass, false, cl);
1243 Principal p = getKnownPrincipal(pClass, pppe.principalName);
1244 if (p == null) {
1245 if (!Principal.class.isAssignableFrom(pClass)) {
1246 // not the right subtype
1247 throw new ClassCastException(pppe.principalClass +
1248 " is not a Principal");
1249 }
1250
1251 Constructor<?> c = pClass.getConstructor(PARAMS1);
1252 p = (Principal)c.newInstance(new Object[] {
1253 pppe.principalName });
1254
1255 }
1256
1257 if (debug != null) {
1258 debug.println("found Principal " + p.getClass().getName());
1259 }
1260
1261 // check if the Principal implies the current
1262 // thread's principals
1263 if (!p.implies(subject)) {
1264 if (debug != null) {
1265 debug.println("evaluation (principal implies) failed");
1266 }
1267
1268 // policy principal does not imply the current Subject -
1269 // immediately return and go to next policy entry
1270 return;
1271 }
1272 } catch (Exception e) {
1273 // fall back to default principal comparison.
1274 // see if policy entry principal is in current ACC
1275
1276 if (debug != null) {
1277 e.printStackTrace();
1278 }
1279
1280 if (!pppe.implies(subject)) {
1281 if (debug != null) {
1282 debug.println("evaluation (default principal implies) failed");
1283 }
1284
1285 // policy entry principal not in current ACC -
1286 // immediately return and go to next policy entry
1287 return;
1288 }
1289 }
1290
1291 // either the principal information matched,
1292 // or the Principal.implies succeeded.
1293 // continue loop and test the next policy principal
1294 }
1295
1296 // all policy entry principals were found in the current ACC -
1297 // grant the policy permissions
1298
1299 if (debug != null) {
1300 debug.println("evaluation (codesource/principals) passed");
1301 }
1302 addPerms(perms, principals, entry);
1303 }
1304
1305 /**
1306 * Returns true if the array of principals contains at least one
1307 * principal of the specified class.
1308 */
1309 private static boolean wildcardPrincipalNameImplies(String principalClass,
1310 Principal[] principals)
1311 {
1312 for (Principal p : principals) {
1313 if (principalClass.equals(p.getClass().getName())) {
1314 return true;
1315 }
1316 }
1317 return false;
1318 }
1319
1320 private void addPerms(Permissions perms,
1321 Principal[] accPs,
1322 PolicyEntry entry) {
1323 for (int i = 0; i < entry.permissions.size(); i++) {
1324 Permission p = entry.permissions.get(i);
1325 if (debug != null) {
1326 debug.println(" granting " + p);
1327 }
1328
1329 if (p instanceof SelfPermission) {
1330 // handle "SELF" permissions
1331 expandSelf((SelfPermission)p,
1332 entry.getPrincipals(),
1333 accPs,
1334 perms);
1335 } else {
1336 perms.add(FilePermCompat.newPermPlusAltPath(p));
1337 }
1338 }
1339 }
1340
1341 /**
1342 * @param sp the SelfPermission that needs to be expanded.
1343 *
1344 * @param entryPs list of principals for the Policy entry.
1345 *
1346 * @param pdp Principal array from the current ProtectionDomain.
1347 *
1348 * @param perms the PermissionCollection where the individual
1349 * Permissions will be added after expansion.
1350 */
1351
1352 private void expandSelf(SelfPermission sp,
1353 List<PolicyParser.PrincipalEntry> entryPs,
1354 Principal[] pdp,
1355 Permissions perms) {
1356
1357 if (entryPs == null || entryPs.isEmpty()) {
1358 // No principals in the grant to substitute
1359 if (debug != null) {
1360 debug.println("Ignoring permission "
1361 + sp.getSelfType()
1362 + " with target name ("
1363 + sp.getSelfName() + "). "
1364 + "No Principal(s) specified "
1365 + "in the grant clause. "
1366 + "SELF-based target names are "
1367 + "only valid in the context "
1368 + "of a Principal-based grant entry."
1369 );
1370 }
1371 return;
1372 }
1373 int startIndex = 0;
1374 int v;
1375 StringBuilder sb = new StringBuilder();
1376 while ((v = sp.getSelfName().indexOf(SELF, startIndex)) != -1) {
1377
1378 // add non-SELF string
1379 sb.append(sp.getSelfName().substring(startIndex, v));
1380
1381 // expand SELF
1382 Iterator<PolicyParser.PrincipalEntry> pli = entryPs.iterator();
1383 while (pli.hasNext()) {
1384 PolicyParser.PrincipalEntry pppe = pli.next();
1385 String[][] principalInfo = getPrincipalInfo(pppe,pdp);
1386 for (int i = 0; i < principalInfo.length; i++) {
1387 if (i != 0) {
1388 sb.append(", ");
1389 }
1390 sb.append(principalInfo[i][0] + " " +
1391 "\"" + principalInfo[i][1] + "\"");
1392 }
1393 if (pli.hasNext()) {
1394 sb.append(", ");
1395 }
1396 }
1397 startIndex = v + SELF.length();
1398 }
1399 // add remaining string (might be the entire string)
1400 sb.append(sp.getSelfName().substring(startIndex));
1401
1402 if (debug != null) {
1403 debug.println(" expanded:\n\t" + sp.getSelfName()
1404 + "\n into:\n\t" + sb.toString());
1405 }
1406 try {
1407 // first try to instantiate the permission
1408 perms.add(FilePermCompat.newPermPlusAltPath(getInstance(sp.getSelfType(),
1409 sb.toString(),
1410 sp.getSelfActions())));
1411 } catch (ClassNotFoundException cnfe) {
1412 // ok, the permission is not in the bootclasspath.
1413 // before we add an UnresolvedPermission, check to see
1414 // whether this perm already belongs to the collection.
1415 // if so, use that perm's ClassLoader to create a new
1416 // one.
1417 Class<?> pc = null;
1418 synchronized (perms) {
1419 Enumeration<Permission> e = perms.elements();
1420 while (e.hasMoreElements()) {
1421 Permission pElement = e.nextElement();
1422 if (pElement.getClass().getName().equals(sp.getSelfType())) {
1423 pc = pElement.getClass();
1424 break;
1425 }
1426 }
1427 }
1428 if (pc == null) {
1429 // create an UnresolvedPermission
1430 perms.add(new UnresolvedPermission(sp.getSelfType(),
1431 sb.toString(),
1432 sp.getSelfActions(),
1433 sp.getCerts()));
1434 } else {
1435 try {
1436 // we found an instantiated permission.
1437 // use its class loader to instantiate a new permission.
1438 Constructor<?> c;
1439 // name parameter can not be null
1440 if (sp.getSelfActions() == null) {
1441 try {
1442 c = pc.getConstructor(PARAMS1);
1443 perms.add((Permission)c.newInstance
1444 (new Object[] {sb.toString()}));
1445 } catch (NoSuchMethodException ne) {
1446 c = pc.getConstructor(PARAMS2);
1447 perms.add((Permission)c.newInstance
1448 (new Object[] {sb.toString(),
1449 sp.getSelfActions() }));
1450 }
1451 } else {
1452 c = pc.getConstructor(PARAMS2);
1453 perms.add((Permission)c.newInstance
1454 (new Object[] {sb.toString(),
1455 sp.getSelfActions()}));
1456 }
1457 } catch (Exception nme) {
1458 if (debug != null) {
1459 debug.println("self entry expansion " +
1460 " instantiation failed: "
1461 + nme.toString());
1462 }
1463 }
1464 }
1465 } catch (Exception e) {
1466 if (debug != null) {
1467 debug.println(e.toString());
1468 }
1469 }
1470 }
1471
1472 /**
1473 * return the principal class/name pair in the 2D array.
1474 * array[x][y]: x corresponds to the array length.
1475 * if (y == 0), it's the principal class.
1476 * if (y == 1), it's the principal name.
1477 */
1478 private String[][] getPrincipalInfo
1479 (PolicyParser.PrincipalEntry pe, Principal[] pdp) {
1480
1481 // there are 3 possibilities:
1482 // 1) the entry's Principal class and name are not wildcarded
1483 // 2) the entry's Principal name is wildcarded only
1484 // 3) the entry's Principal class and name are wildcarded
1485
1486 if (!pe.isWildcardClass() && !pe.isWildcardName()) {
1487
1488 // build an info array for the principal
1489 // from the Policy entry
1490 String[][] info = new String[1][2];
1491 info[0][0] = pe.principalClass;
1492 info[0][1] = pe.principalName;
1493 return info;
1494
1495 } else if (!pe.isWildcardClass() && pe.isWildcardName()) {
1496
1497 // build an info array for every principal
1498 // in the current domain which has a principal class
1499 // that is equal to policy entry principal class name
1500 List<Principal> plist = new ArrayList<>();
1501 for (int i = 0; i < pdp.length; i++) {
1502 if (pe.principalClass.equals(pdp[i].getClass().getName()))
1503 plist.add(pdp[i]);
1504 }
1505 String[][] info = new String[plist.size()][2];
1506 int i = 0;
1507 for (Principal p : plist) {
1508 info[i][0] = p.getClass().getName();
1509 info[i][1] = p.getName();
1510 i++;
1511 }
1512 return info;
1513
1514 } else {
1515
1516 // build an info array for every
1517 // one of the current Domain's principals
1518
1519 String[][] info = new String[pdp.length][2];
1520
1521 for (int i = 0; i < pdp.length; i++) {
1522 info[i][0] = pdp[i].getClass().getName();
1523 info[i][1] = pdp[i].getName();
1524 }
1525 return info;
1526 }
1527 }
1528
1529 /*
1530 * Returns the signer certificates from the list of certificates
1531 * associated with the given code source.
1532 *
1533 * The signer certificates are those certificates that were used
1534 * to verify signed code originating from the codesource location.
1535 *
1536 * This method assumes that in the given code source, each signer
1537 * certificate is followed by its supporting certificate chain
1538 * (which may be empty), and that the signer certificate and its
1539 * supporting certificate chain are ordered bottom-to-top
1540 * (i.e., with the signer certificate first and the (root) certificate
1541 * authority last).
1542 */
1543 protected Certificate[] getSignerCertificates(CodeSource cs) {
1544 Certificate[] certs = null;
1545 if ((certs = cs.getCertificates()) == null)
1546 return null;
1547 for (int i=0; i<certs.length; i++) {
1548 if (!(certs[i] instanceof X509Certificate))
1549 return cs.getCertificates();
1550 }
1551
1552 // Do we have to do anything?
1553 int i = 0;
1554 int count = 0;
1555 while (i < certs.length) {
1556 count++;
1557 while (((i+1) < certs.length)
1558 && ((X509Certificate)certs[i]).getIssuerDN().equals(
1559 ((X509Certificate)certs[i+1]).getSubjectDN())) {
1560 i++;
1561 }
1562 i++;
1563 }
1564 if (count == certs.length)
1565 // Done
1566 return certs;
1567
1568 List<Certificate> userCertList = new ArrayList<>();
1569 i = 0;
1570 while (i < certs.length) {
1571 userCertList.add(certs[i]);
1572 while (((i+1) < certs.length)
1573 && ((X509Certificate)certs[i]).getIssuerDN().equals(
1574 ((X509Certificate)certs[i+1]).getSubjectDN())) {
1575 i++;
1576 }
1577 i++;
1578 }
1579 Certificate[] userCerts = new Certificate[userCertList.size()];
1580 userCertList.toArray(userCerts);
1581 return userCerts;
1582 }
1583
1584 private CodeSource canonicalizeCodebase(CodeSource cs,
1585 boolean extractSignerCerts) {
1586
1587 String path = null;
1588
1589 CodeSource canonCs = cs;
1590 URL u = cs.getLocation();
1591 if (u != null) {
1592 if (u.getProtocol().equals("jar")) {
1593 // unwrap url embedded inside jar url
1594 String spec = u.getFile();
1595 int separator = spec.indexOf("!/");
1596 if (separator != -1) {
1597 try {
1598 u = new URL(spec.substring(0, separator));
1599 } catch (MalformedURLException e) {
1600 // Fail silently. In this case, url stays what
1601 // it was above
1602 }
1603 }
1604 }
1605 if (u.getProtocol().equals("file")) {
1606 boolean isLocalFile = false;
1607 String host = u.getHost();
1608 isLocalFile = (host == null || host.equals("") ||
1609 host.equals("~") || host.equalsIgnoreCase("localhost"));
1610
1611 if (isLocalFile) {
1612 path = u.getFile().replace('/', File.separatorChar);
1613 path = ParseUtil.decode(path);
1614 }
1615 }
1616 }
1617
1618 if (path != null) {
1619 try {
1620 URL csUrl = null;
1621 path = canonPath(path);
1622 csUrl = ParseUtil.fileToEncodedURL(new File(path));
1623
1624 if (extractSignerCerts) {
1625 canonCs = new CodeSource(csUrl,
1626 getSignerCertificates(cs));
1627 } else {
1628 canonCs = new CodeSource(csUrl,
1629 cs.getCertificates());
1630 }
1631 } catch (IOException ioe) {
1632 // leave codesource as it is, unless we have to extract its
1633 // signer certificates
1634 if (extractSignerCerts) {
1635 canonCs = new CodeSource(cs.getLocation(),
1636 getSignerCertificates(cs));
1637 }
1638 }
1639 } else {
1640 if (extractSignerCerts) {
1641 canonCs = new CodeSource(cs.getLocation(),
1642 getSignerCertificates(cs));
1643 }
1644 }
1645 return canonCs;
1646 }
1647
1648 // Wrapper to return a canonical path that avoids calling getCanonicalPath()
1649 // with paths that are intended to match all entries in the directory
1650 private static String canonPath(String path) throws IOException {
1651 if (path.endsWith("*")) {
1652 path = path.substring(0, path.length()-1) + "-";
1653 path = new File(path).getCanonicalPath();
1654 return path.substring(0, path.length()-1) + "*";
1655 } else {
1656 return new File(path).getCanonicalPath();
1657 }
1658 }
1659
1660 private String printPD(ProtectionDomain pd) {
1661 Principal[] principals = pd.getPrincipals();
1662 String pals = "<no principals>";
1663 if (principals != null && principals.length > 0) {
1664 StringBuilder palBuf = new StringBuilder("(principals ");
1665 for (int i = 0; i < principals.length; i++) {
1666 palBuf.append(principals[i].getClass().getName() +
1667 " \"" + principals[i].getName() +
1668 "\"");
1669 if (i < principals.length-1)
1670 palBuf.append(", ");
1671 else
1672 palBuf.append(")");
1673 }
1674 pals = palBuf.toString();
1675 }
1676 return "PD CodeSource: "
1677 + pd.getCodeSource()
1678 +"\n\t" + "PD ClassLoader: "
1679 + pd.getClassLoader()
1680 +"\n\t" + "PD Principals: "
1681 + pals;
1682 }
1683
1684 /**
1685 * return true if no replacement was performed,
1686 * or if replacement succeeded.
1687 */
1688 private boolean replacePrincipals(
1689 List<PolicyParser.PrincipalEntry> principals, KeyStore keystore) {
1690
1691 if (principals == null || principals.isEmpty() || keystore == null)
1692 return true;
1693
1694 for (PolicyParser.PrincipalEntry pppe : principals) {
1695 if (pppe.isReplaceName()) {
1696
1697 // perform replacement
1698 // (only X509 replacement is possible now)
1699 String name;
1700 if ((name = getDN(pppe.principalName, keystore)) == null) {
1701 return false;
1702 }
1703
1704 if (debug != null) {
1705 debug.println(" Replacing \"" +
1706 pppe.principalName +
1707 "\" with " +
1708 X500PRINCIPAL + "/\"" +
1709 name +
1710 "\"");
1711 }
1712
1713 pppe.principalClass = X500PRINCIPAL;
1714 pppe.principalName = name;
1715 }
1716 }
1717 // return true if no replacement was performed,
1718 // or if replacement succeeded
1719 return true;
1720 }
1721
1722 private void expandPermissionName(PolicyParser.PermissionEntry pe,
1723 KeyStore keystore) throws Exception {
1724 // short cut the common case
1725 if (pe.name == null || pe.name.indexOf("${{", 0) == -1) {
1726 return;
1727 }
1728
1729 int startIndex = 0;
1730 int b, e;
1731 StringBuilder sb = new StringBuilder();
1732 while ((b = pe.name.indexOf("${{", startIndex)) != -1) {
1733 e = pe.name.indexOf("}}", b);
1734 if (e < 1) {
1735 break;
1736 }
1737 sb.append(pe.name.substring(startIndex, b));
1738
1739 // get the value in ${{...}}
1740 String value = pe.name.substring(b+3, e);
1741
1742 // parse up to the first ':'
1743 int colonIndex;
1744 String prefix = value;
1745 String suffix;
1746 if ((colonIndex = value.indexOf(':')) != -1) {
1747 prefix = value.substring(0, colonIndex);
1748 }
1749
1750 // handle different prefix possibilities
1751 if (prefix.equalsIgnoreCase("self")) {
1752 // do nothing - handled later
1753 sb.append(pe.name.substring(b, e+2));
1754 startIndex = e+2;
1755 continue;
1756 } else if (prefix.equalsIgnoreCase("alias")) {
1757 // get the suffix and perform keystore alias replacement
1758 if (colonIndex == -1) {
1759 Object[] source = {pe.name};
1760 throw new Exception(
1761 LocalizedMessage.getNonlocalized(
1762 "alias.name.not.provided.pe.name.",
1763 source));
1764 }
1765 suffix = value.substring(colonIndex+1);
1766 if ((suffix = getDN(suffix, keystore)) == null) {
1767 Object[] source = {value.substring(colonIndex+1)};
1768 throw new Exception(
1769 LocalizedMessage.getNonlocalized(
1770 "unable.to.perform.substitution.on.alias.suffix",
1771 source));
1772 }
1773
1774 sb.append(X500PRINCIPAL + " \"" + suffix + "\"");
1775 startIndex = e+2;
1776 } else {
1777 Object[] source = {prefix};
1778 throw new Exception(
1779 LocalizedMessage.getNonlocalized(
1780 "substitution.value.prefix.unsupported",
1781 source));
1782 }
1783 }
1784
1785 // copy the rest of the value
1786 sb.append(pe.name.substring(startIndex));
1787
1788 // replace the name with expanded value
1789 if (debug != null) {
1790 debug.println(" Permission name expanded from:\n\t" +
1791 pe.name + "\nto\n\t" + sb.toString());
1792 }
1793 pe.name = sb.toString();
1794 }
1795
1796 private String getDN(String alias, KeyStore keystore) {
1797 Certificate cert = null;
1798 try {
1799 cert = keystore.getCertificate(alias);
1800 } catch (Exception e) {
1801 if (debug != null) {
1802 debug.println(" Error retrieving certificate for '" +
1803 alias +
1804 "': " +
1805 e.toString());
1806 }
1807 return null;
1808 }
1809
1810 if (cert == null || !(cert instanceof X509Certificate)) {
1811 if (debug != null) {
1812 debug.println(" -- No certificate for '" +
1813 alias +
1814 "' - ignoring entry");
1815 }
1816 return null;
1817 } else {
1818 X509Certificate x509Cert = (X509Certificate)cert;
1819
1820 // 4702543: X500 names with an EmailAddress
1821 // were encoded incorrectly. create new
1822 // X500Principal name with correct encoding
1823
1824 X500Principal p = new X500Principal
1825 (x509Cert.getSubjectX500Principal().toString());
1826 return p.getName();
1827 }
1828 }
1829
1830 /**
1831 * Each entry in the policy configuration file is represented by a
1832 * PolicyEntry object. <p>
1833 *
1834 * A PolicyEntry is a (CodeSource,Permission) pair. The
1835 * CodeSource contains the (URL, PublicKey) that together identify
1836 * where the Java bytecodes come from and who (if anyone) signed
1837 * them. The URL could refer to localhost. The URL could also be
1838 * null, meaning that this policy entry is given to all comers, as
1839 * long as they match the signer field. The signer could be null,
1840 * meaning the code is not signed. <p>
1841 *
1842 * The Permission contains the (Type, Name, Action) triplet. <p>
1843 *
1844 * For now, the Policy object retrieves the public key from the
1845 * X.509 certificate on disk that corresponds to the signedBy
1846 * alias specified in the Policy config file. For reasons of
1847 * efficiency, the Policy object keeps a hashtable of certs already
1848 * read in. This could be replaced by a secure internal key
1849 * store.
1850 *
1851 * <p>
1852 * For example, the entry
1853 * <pre>
1854 * permission java.io.File "/tmp", "read,write",
1855 * signedBy "Duke";
1856 * </pre>
1857 * is represented internally
1858 * <pre>
1859 *
1860 * FilePermission f = new FilePermission("/tmp", "read,write");
1861 * PublicKey p = publickeys.get("Duke");
1862 * URL u = InetAddress.getLocalHost();
1863 * CodeBase c = new CodeBase( p, u );
1864 * pe = new PolicyEntry(f, c);
1865 * </pre>
1866 *
1867 * @author Marianne Mueller
1868 * @author Roland Schemers
1869 * @see java.security.CodeSource
1870 * @see java.security.Policy
1871 * @see java.security.Permissions
1872 * @see java.security.ProtectionDomain
1873 */
1874 private static class PolicyEntry {
1875
1876 private final CodeSource codesource;
1877 final List<Permission> permissions;
1878 private final List<PolicyParser.PrincipalEntry> principals;
1879
1880 /**
1881 * Given a Permission and a CodeSource, create a policy entry.
1882 *
1883 * XXX Decide if/how to add validity fields and "purpose" fields to
1884 * XXX policy entries
1885 *
1886 * @param cs the CodeSource, which encapsulates the URL and the
1887 * public key
1888 * attributes from the policy config file. Validity checks
1889 * are performed on the public key before PolicyEntry is
1890 * called.
1891 *
1892 */
1893 PolicyEntry(CodeSource cs, List<PolicyParser.PrincipalEntry> principals)
1894 {
1895 this.codesource = cs;
1896 this.permissions = new ArrayList<Permission>();
1897 this.principals = principals; // can be null
1898 }
1899
1900 PolicyEntry(CodeSource cs)
1901 {
1902 this(cs, null);
1903 }
1904
1905 List<PolicyParser.PrincipalEntry> getPrincipals() {
1906 return principals; // can be null
1907 }
1908
1909 /**
1910 * add a Permission object to this entry.
1911 * No need to sync add op because perms are added to entry only
1912 * while entry is being initialized
1913 */
1914 void add(Permission p) {
1915 permissions.add(p);
1916 }
1917
1918 /**
1919 * Return the CodeSource for this policy entry
1920 */
1921 CodeSource getCodeSource() {
1922 return codesource;
1923 }
1924
1925 @Override public String toString(){
1926 StringBuilder sb = new StringBuilder();
1927 sb.append(ResourcesMgr.getString("LPARAM"));
1928 sb.append(getCodeSource());
1929 sb.append("\n");
1930 for (int j = 0; j < permissions.size(); j++) {
1931 Permission p = permissions.get(j);
1932 sb.append(ResourcesMgr.getString("SPACE"));
1933 sb.append(ResourcesMgr.getString("SPACE"));
1934 sb.append(p);
1935 sb.append(ResourcesMgr.getString("NEWLINE"));
1936 }
1937 sb.append(ResourcesMgr.getString("RPARAM"));
1938 sb.append(ResourcesMgr.getString("NEWLINE"));
1939 return sb.toString();
1940 }
1941 }
1942
1943 private static class SelfPermission extends Permission {
1944
1945 private static final long serialVersionUID = -8315562579967246806L;
1946
1947 /**
1948 * The class name of the Permission class that will be
1949 * created when this self permission is expanded .
1950 *
1951 * @serial
1952 */
1953 private String type;
1954
1955 /**
1956 * The permission name.
1957 *
1958 * @serial
1959 */
1960 private String name;
1961
1962 /**
1963 * The actions of the permission.
1964 *
1965 * @serial
1966 */
1967 private String actions;
1968
1969 /**
1970 * The certs of the permission.
1971 *
1972 * @serial
1973 */
1974 private Certificate[] certs;
1975
1976 /**
1977 * Creates a new SelfPermission containing the permission
1978 * information needed later to expand the self
1979 * @param type the class name of the Permission class that will be
1980 * created when this permission is expanded and if necessary resolved.
1981 * @param name the name of the permission.
1982 * @param actions the actions of the permission.
1983 * @param certs the certificates the permission's class was signed with.
1984 * This is a list of certificate chains, where each chain is composed of
1985 * a signer certificate and optionally its supporting certificate chain.
1986 * Each chain is ordered bottom-to-top (i.e., with the signer
1987 * certificate first and the (root) certificate authority last).
1988 */
1989 public SelfPermission(String type, String name, String actions,
1990 Certificate[] certs)
1991 {
1992 super(type);
1993 if (type == null) {
1994 throw new NullPointerException
1995 (LocalizedMessage.getNonlocalized("type.can.t.be.null"));
1996 }
1997 this.type = type;
1998 this.name = name;
1999 this.actions = actions;
2000 if (certs != null) {
2001 // Extract the signer certs from the list of certificates.
2002 for (int i=0; i<certs.length; i++) {
2003 if (!(certs[i] instanceof X509Certificate)) {
2004 // there is no concept of signer certs, so we store the
2005 // entire cert array
2006 this.certs = certs.clone();
2007 break;
2008 }
2009 }
2010
2011 if (this.certs == null) {
2012 // Go through the list of certs and see if all the certs are
2013 // signer certs.
2014 int i = 0;
2015 int count = 0;
2016 while (i < certs.length) {
2017 count++;
2018 while (((i+1) < certs.length) &&
2019 ((X509Certificate)certs[i]).getIssuerDN().equals(
2020 ((X509Certificate)certs[i+1]).getSubjectDN())) {
2021 i++;
2022 }
2023 i++;
2024 }
2025 if (count == certs.length) {
2026 // All the certs are signer certs, so we store the
2027 // entire array
2028 this.certs = certs.clone();
2029 }
2030
2031 if (this.certs == null) {
2032 // extract the signer certs
2033 List<Certificate> signerCerts = new ArrayList<>();
2034 i = 0;
2035 while (i < certs.length) {
2036 signerCerts.add(certs[i]);
2037 while (((i+1) < certs.length) &&
2038 ((X509Certificate)certs[i]).getIssuerDN().equals(
2039 ((X509Certificate)certs[i+1]).getSubjectDN())) {
2040 i++;
2041 }
2042 i++;
2043 }
2044 this.certs = new Certificate[signerCerts.size()];
2045 signerCerts.toArray(this.certs);
2046 }
2047 }
2048 }
2049 }
2050
2051 /**
2052 * This method always returns false for SelfPermission permissions.
2053 * That is, an SelfPermission never considered to
2054 * imply another permission.
2055 *
2056 * @param p the permission to check against.
2057 *
2058 * @return false.
2059 */
2060 @Override public boolean implies(Permission p) {
2061 return false;
2062 }
2063
2064 /**
2065 * Checks two SelfPermission objects for equality.
2066 *
2067 * Checks that <i>obj</i> is an SelfPermission, and has
2068 * the same type (class) name, permission name, actions, and
2069 * certificates as this object.
2070 *
2071 * @param obj the object we are testing for equality with this object.
2072 *
2073 * @return true if obj is an SelfPermission, and has the same
2074 * type (class) name, permission name, actions, and
2075 * certificates as this object.
2076 */
2077 @Override public boolean equals(Object obj) {
2078 if (obj == this)
2079 return true;
2080
2081 if (! (obj instanceof SelfPermission))
2082 return false;
2083 SelfPermission that = (SelfPermission) obj;
2084
2085 if (!(this.type.equals(that.type) &&
2086 this.name.equals(that.name) &&
2087 this.actions.equals(that.actions)))
2088 return false;
2089
2090 if (this.certs.length != that.certs.length)
2091 return false;
2092
2093 int i,j;
2094 boolean match;
2095
2096 for (i = 0; i < this.certs.length; i++) {
2097 match = false;
2098 for (j = 0; j < that.certs.length; j++) {
2099 if (this.certs[i].equals(that.certs[j])) {
2100 match = true;
2101 break;
2102 }
2103 }
2104 if (!match) return false;
2105 }
2106
2107 for (i = 0; i < that.certs.length; i++) {
2108 match = false;
2109 for (j = 0; j < this.certs.length; j++) {
2110 if (that.certs[i].equals(this.certs[j])) {
2111 match = true;
2112 break;
2113 }
2114 }
2115 if (!match) return false;
2116 }
2117 return true;
2118 }
2119
2120 /**
2121 * Returns the hash code value for this object.
2122 *
2123 * @return a hash code value for this object.
2124 */
2125 @Override public int hashCode() {
2126 int hash = type.hashCode();
2127 if (name != null)
2128 hash ^= name.hashCode();
2129 if (actions != null)
2130 hash ^= actions.hashCode();
2131 return hash;
2132 }
2133
2134 /**
2135 * Returns the canonical string representation of the actions,
2136 * which currently is the empty string "", since there are no actions
2137 * for an SelfPermission. That is, the actions for the
2138 * permission that will be created when this SelfPermission
2139 * is resolved may be non-null, but an SelfPermission
2140 * itself is never considered to have any actions.
2141 *
2142 * @return the empty string "".
2143 */
2144 @Override public String getActions() {
2145 return "";
2146 }
2147
2148 public String getSelfType() {
2149 return type;
2150 }
2151
2152 public String getSelfName() {
2153 return name;
2154 }
2155
2156 public String getSelfActions() {
2157 return actions;
2158 }
2159
2160 public Certificate[] getCerts() {
2161 return certs;
2162 }
2163
2164 /**
2165 * Returns a string describing this SelfPermission. The convention
2166 * is to specify the class name, the permission name, and the actions,
2167 * in the following format: '(unresolved "ClassName" "name" "actions")'.
2168 *
2169 * @return information about this SelfPermission.
2170 */
2171 @Override public String toString() {
2172 return "(SelfPermission " + type + " " + name + " " + actions + ")";
2173 }
2174 }
2175
2176 /**
2177 * holds policy information that we need to synch on
2178 */
2179 private static class PolicyInfo {
2180 private static final boolean verbose = false;
2181
2182 // Stores grant entries in the policy
2183 final List<PolicyEntry> policyEntries;
2184
2185 // Maps aliases to certs
2186 final Map<Object, Object> aliasMapping;
2187
2188 // Maps ProtectionDomain to PermissionCollection
2189 private final ProtectionDomainCache[] pdMapping;
2190 private java.util.Random random;
2191
2192 PolicyInfo(int numCaches) {
2193 policyEntries = new ArrayList<>();
2194 aliasMapping = Collections.synchronizedMap(new HashMap<>(11));
2195
2196 pdMapping = new ProtectionDomainCache[numCaches];
2197 JavaSecurityAccess jspda
2198 = SharedSecrets.getJavaSecurityAccess();
2199 for (int i = 0; i < numCaches; i++) {
2200 pdMapping[i] = jspda.getProtectionDomainCache();
2201 }
2202 if (numCaches > 1) {
2203 random = new java.util.Random();
2204 }
2205 }
2206 ProtectionDomainCache getPdMapping() {
2207 if (pdMapping.length == 1) {
2208 return pdMapping[0];
2209 } else {
2210 int i = java.lang.Math.abs(random.nextInt() % pdMapping.length);
2211 return pdMapping[i];
2212 }
2213 }
2214 }
2215 }