/*
* Adito
*
* Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package com.adito.input.validators;
import java.net.Inet6Address;
import java.net.UnknownHostException;
import java.util.Properties;
import com.adito.boot.CodedException;
import com.adito.boot.PropertyDefinition;
import com.adito.core.CoreException;
/**
* OK, I know that a regex expression would be quicker here. The old regex didn't work here and it was too hard to try and get it working.
* This was much quicker to write, if anyone wants to change it in the future, the validation rules should be very easy to understand.
*/
public class IPV6AddressValidator extends StringValidator {
@Override
public void validate(PropertyDefinition definition, String value, Properties properties) throws CodedException {
super.validate(definition, value, properties);
if (!isIpAddressExpressionValid(value)) {
throw new CoreException(ErrorConstants.ERR_STRING_ISNT_IP_ADDRESS, ErrorConstants.CATEGORY_NAME, ErrorConstants.BUNDLE_NAME, null, value);
}
}
/**
* @param ipAddress
* @return true
*/
public static boolean isIpAddressExpressionValid(String ipAddress) {
return isValidIPV6Address(ipAddress) || isValidAnyAddress(ipAddress) || isValidLoopBackAddress(ipAddress);
}
private static boolean isValidIPV6Address(String ipAddress) {
try {
Inet6Address.getByName(ipAddress);
return true;
} catch (UnknownHostException e) {
return false;
}
}
private static boolean isValidAnyAddress(String ipAddress) {
return ipAddress.equals("::0") || ipAddress.equals("0:0:0:0:0:0:0:0");
}
private static boolean isValidLoopBackAddress(String ipAddress) {
return ipAddress.equals("::1") || ipAddress.equals("0:0:0:0:0:0:0:1");
}
}