/*
* Copyright (c) 2003 The Visigoth Software Society. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowledgement:
* "This product includes software developed by the
* Visigoth Software Society (http://www.visigoths.org/)."
* Alternately, this acknowledgement may appear in the software itself,
* if and wherever such third-party acknowledgements normally appear.
*
* 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the
* project contributors may be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
* nor may "FreeMarker" or "Visigoth" appear in their names
* without prior written permission of the Visigoth Software Society.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE VISIGOTH SOFTWARE SOCIETY OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Visigoth Software Society. For more
* information on the Visigoth Software Society, please see
* http://www.visigoths.org/
*/
package freemarker.template.utility;
import java.security.AccessControlException;
import java.security.AccessController;
import java.security.PrivilegedAction;
import freemarker.log.Logger;
/**
* @author Attila Szegedi
* @version $Id: SecurityUtilities.java,v 1.2 2004/11/11 13:27:39 szegedia Exp $
*/
public class SecurityUtilities
{
private static final Logger logger = Logger.getLogger("freemarker.security");
private SecurityUtilities()
{
}
public static String getSystemProperty(final String key)
{
return (String) AccessController.doPrivileged(
new PrivilegedAction()
{
public Object run()
{
return System.getProperty(key);
}
});
}
public static String getSystemProperty(final String key, final String defValue)
{
try
{
return (String) AccessController.doPrivileged(
new PrivilegedAction()
{
public Object run()
{
return System.getProperty(key, defValue);
}
});
}
catch(AccessControlException e)
{
logger.warn("Insufficient permissions to read system property '" +
key + "', using default value '" + defValue + "'");
return defValue;
}
}
public static Integer getSystemProperty(final String key, final int defValue)
{
try
{
return (Integer) AccessController.doPrivileged(
new PrivilegedAction()
{
public Object run()
{
return Integer.getInteger(key, defValue);
}
});
}
catch(AccessControlException e)
{
logger.warn("Insufficient permissions to read system property '" +
key + "', using default value " + defValue + "");
return new Integer(defValue);
}
}
}
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