com.sun.enterprise.security.integration.PermsHolder Maven / Gradle / Ivy

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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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// Portions Copyright [2018] [Payara Foundation and/or its affiliates]
package com.sun.enterprise.security.integration;

import java.security.CodeSource;
import java.security.Permission;
import java.security.PermissionCollection;
import java.security.Permissions;
import java.util.Enumeration;
import java.util.concurrent.ConcurrentHashMap;

public class PermsHolder {

    /**
     * The PermissionCollection for each CodeSource
     */
    private ConcurrentHashMap loaderPC = new ConcurrentHashMap();

    /**
     * EE permissions for a module
     */
    private PermissionCollection eePermissionCollection;

    /**
     * Declared permissions in a module
     */
    private PermissionCollection declaredPermissionCollection;

    /**
     * EE restriction list
     */
    private PermissionCollection restrictPermissionCollection;

    public PermsHolder() {

    }

    public PermsHolder(PermissionCollection eePC, PermissionCollection declPC, PermissionCollection restrictPC) {
        setEEPermissions(eePC);
        setDeclaredPermissions(declPC);
        setRestrictPermissions(restrictPC);
    }

    public void setEEPermissions(PermissionCollection eePc) {
        eePermissionCollection = eePc;
    }

    public void setDeclaredPermissions(PermissionCollection declaredPc) {
        declaredPermissionCollection = declaredPc;
    }

    public void setRestrictPermissions(PermissionCollection restrictPC) {
        restrictPermissionCollection = restrictPC;
    }

    public PermissionCollection getCachedPerms(CodeSource codesource) {
        if (codesource == null) {
            return null;
        }

        return loaderPC.get(codesource.getLocation().toString());
    }

    public PermissionCollection getPermissions(CodeSource codesource, PermissionCollection parentPC) {

        String codeUrl = codesource.getLocation().toString();
        PermissionCollection cachedPermissons = loaderPC.get(codeUrl);

        if (cachedPermissons != null) {
            return cachedPermissons;
        }
        
        cachedPermissons = new Permissions();

        PermissionCollection pc = parentPC;

        if (pc != null) {
            Enumeration perms = pc.elements();
            while (perms.hasMoreElements()) {
                Permission p = perms.nextElement();
                cachedPermissons.add(p);
            }
        }

        if (declaredPermissionCollection != null) {
            Enumeration dperms = this.declaredPermissionCollection.elements();
            while (dperms.hasMoreElements()) {
                Permission p = dperms.nextElement();
                cachedPermissons.add(p);
            }
        }

        if (eePermissionCollection != null) {
            Enumeration eeperms = eePermissionCollection.elements();
            while (eeperms.hasMoreElements()) {
                Permission p = eeperms.nextElement();
                cachedPermissons.add(p);
            }

        }

        PermissionCollection tmpPc = loaderPC.putIfAbsent(codeUrl, cachedPermissons);
        if (tmpPc != null) {
            cachedPermissons = tmpPc;
        }

        return cachedPermissons;
    }
}