/**
*
* Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
**/
package lucee.runtime.functions.decision;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.UnknownHostException;
import lucee.commons.lang.StringUtil;
import lucee.runtime.PageContext;
import lucee.runtime.exp.PageException;
import lucee.runtime.op.Caster;
public class IsIPv6 {
public static boolean call(PageContext pc) throws PageException {
try {
InetAddress ia = InetAddress.getLocalHost();
InetAddress[] ias = InetAddress.getAllByName(ia.getHostName());
return _call(ias);
}
catch (UnknownHostException e) {
throw Caster.toPageException(e);
}
}
public static boolean call(PageContext pc,String hostName) throws PageException {
if(StringUtil.isEmpty(hostName)) return call(pc);
try {
InetAddress[] ias = InetAddress.getAllByName(hostName);
return _call(ias);
}
catch (UnknownHostException e) {
if(hostName.equalsIgnoreCase("localhost") || hostName.equals("127.0.0.1") || hostName.equalsIgnoreCase("0:0:0:0:0:0:0:1") || hostName.equalsIgnoreCase("::1"))
return call(pc);
throw Caster.toPageException(e);
}
}
private static boolean _call(InetAddress[] ias) {
for(int i=0;i<ias.length;i++) {
if(ias[i] instanceof Inet6Address) return true;
}
return false;
}
}