/** * * 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; } }