Mercurial > jdk8-mips64-public > nashorn / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/jdk/nashorn/internal/runtime/linker/ReflectionCheckLinker.java	Tue Mar 12 18:12:42 2013 +0530
     1.3 @@ -0,0 +1,60 @@
     1.4 +/*
     1.5 + * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.  Oracle designates this
    1.11 + * particular file as subject to the "Classpath" exception as provided
    1.12 + * by Oracle in the LICENSE file that accompanied this code.
    1.13 + *
    1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 + * version 2 for more details (a copy is included in the LICENSE file that
    1.18 + * accompanied this code).
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License version
    1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 + *
    1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.25 + * or visit www.oracle.com if you need additional information or have any
    1.26 + * questions.
    1.27 + */
    1.28 +
    1.29 +package jdk.nashorn.internal.runtime.linker;
    1.30 +
    1.31 +import jdk.internal.dynalink.linker.GuardedInvocation;
    1.32 +import jdk.internal.dynalink.linker.LinkRequest;
    1.33 +import jdk.internal.dynalink.linker.LinkerServices;
    1.34 +import jdk.internal.dynalink.linker.TypeBasedGuardingDynamicLinker;
    1.35 +
    1.36 +/**
    1.37 + * Check java reflection permission for java reflective and java.lang.invoke access from scripts
    1.38 + */
    1.39 +final class ReflectionCheckLinker implements TypeBasedGuardingDynamicLinker{
    1.40 +    @Override
    1.41 +    public boolean canLinkType(final Class<?> type) {
    1.42 +        return canLinkTypeStatic(type);
    1.43 +    }
    1.44 +
    1.45 +    private static boolean canLinkTypeStatic(final Class<?> type) {
    1.46 +        if (type == Class.class || ClassLoader.class.isAssignableFrom(type)) {
    1.47 +            return true;
    1.48 +        }
    1.49 +        final String name = type.getName();
    1.50 +        return name.startsWith("java.lang.reflect.") || name.startsWith("java.lang.invoke.");
    1.51 +    }
    1.52 +
    1.53 +    @Override
    1.54 +    public GuardedInvocation getGuardedInvocation(final LinkRequest origRequest, final LinkerServices linkerServices)
    1.55 +            throws Exception {
    1.56 +        final SecurityManager sm = System.getSecurityManager();
    1.57 +        if (sm != null) {
    1.58 +            sm.checkPermission(new RuntimePermission("nashorn.JavaReflection"));
    1.59 +        }
    1.60 +        // let the next linker deal with actual linking
    1.61 +        return null;
    1.62 +    }
    1.63 +}