java/org/apache/jasper/security/SecurityClassLoad.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


package org.apache.jasper.security;

/**
 * Static class used to preload java classes when using the
 * Java SecurityManager so that the defineClassInPackage
 * RuntimePermission does not trigger an AccessControlException.
 */

public final class SecurityClassLoad {

    private static final org.apache.juli.logging.Log log=
        org.apache.juli.logging.LogFactory.getLog( SecurityClassLoad.class );

    public static void securityClassLoad(ClassLoader loader){

        if( System.getSecurityManager() == null ){
            return;
        }

        final String basePackage = "org.apache.jasper.";
        try {
            loader.loadClass( basePackage +
                "runtime.JspFactoryImpl$PrivilegedGetPageContext");
            loader.loadClass( basePackage +
                "runtime.JspFactoryImpl$PrivilegedReleasePageContext");

            loader.loadClass( basePackage +
                "runtime.JspRuntimeLibrary");

            loader.loadClass( basePackage +
                "runtime.ServletResponseWrapperInclude");
            loader.loadClass( basePackage +
                "runtime.TagHandlerPool");
            loader.loadClass( basePackage +
                "runtime.JspFragmentHelper");

            loader.loadClass( basePackage +
                "runtime.ProtectedFunctionMapper");

            loader.loadClass( basePackage +
                "runtime.PageContextImpl");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$1");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$2");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$3");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$4");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$5");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$6");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$7");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$8");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$9");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$10");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$11");
            loader.loadClass( basePackage +
                "runtime.PageContextImpl$12");

            loader.loadClass( basePackage +
                "runtime.JspContextWrapper");

            // Trigger loading of class and reading of property
            SecurityUtil.isPackageProtectionEnabled();

            loader.loadClass( basePackage +
                "servlet.JspServletWrapper");

            loader.loadClass( basePackage +
                "runtime.JspWriterImpl$1");
        } catch (ClassNotFoundException ex) {
            log.error("SecurityClassLoad", ex);
        }
    }
}