65 lines
2.4 KiB
Java
65 lines
2.4 KiB
Java
/*
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* Copyright (c) 2005, 2007, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.security.*;
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import java.net.URL;
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import java.net.MalformedURLException;
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import sun.security.provider.*;
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public class GetInstancePolicySpi extends PolicySpi {
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private Policy p;
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public GetInstancePolicySpi(final Policy.Parameters params) {
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p = AccessController.doPrivileged
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(new PrivilegedAction<Policy>() {
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public Policy run() {
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if (params instanceof URIParameter) {
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URIParameter uriParam = (URIParameter)params;
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try {
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URL url = uriParam.getURI().toURL();
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return new PolicyFile(url);
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} catch (MalformedURLException mue) {
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throw new IllegalArgumentException(mue);
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}
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}
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return new PolicyFile();
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}
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});
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}
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public boolean engineImplies(ProtectionDomain domain, Permission perm) {
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/**
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* Note there is no need to capture own protection domain and
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* return immediately if we are performing a check against ourself
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* (a task normally needed for custom policy implementations).
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*
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* We simply call PolicyFile.implies - any doPrivileged
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* that PolicyFile performs will truncate us from the current ACC.
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*/
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return p.implies(domain, perm);
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}
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}
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