1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* Copyright (c) 2005, 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.security.*;
import java.net.URL;
import java.net.MalformedURLException;
import sun.security.provider.*;
public class GetInstancePolicySpi extends PolicySpi {
private Policy p;
public GetInstancePolicySpi(final Policy.Parameters params) {
p = AccessController.doPrivileged
(new PrivilegedAction<Policy>() {
public Policy run() {
if (params instanceof URIParameter) {
URIParameter uriParam = (URIParameter)params;
try {
URL url = uriParam.getURI().toURL();
return new PolicyFile(url);
} catch (MalformedURLException mue) {
throw new IllegalArgumentException(mue);
}
}
return new PolicyFile();
}
});
}
public boolean engineImplies(ProtectionDomain domain, Permission perm) {
/**
* Note there is no need to capture own protection domain and
* return immediately if we are performing a check against ourself
* (a task normally needed for custom policy implementations).
*
* We simply call PolicyFile.implies - any doPrivileged
* that PolicyFile performs will truncate us from the current ACC.
*/
return p.implies(domain, perm);
}
}
|
