Examples with AddressStringException inet.ipaddr.AddressStringException used on opensource projects

Example 1 with AddressStringException

use of inet.ipaddr.AddressStringException in project jcasbin by casbin.

the class BuiltInFunctions method ipMatch.

/**
 * ipMatch determines whether IP address ip1 matches the pattern of IP address ip2, ip2 can be
 * an IP address or a CIDR pattern. For example, "192.168.2.123" matches "192.168.2.0/24"
 *
 * @param ip1 the first argument.
 * @param ip2 the second argument.
 * @return whether ip1 matches ip2.
 */
public static boolean ipMatch(String ip1, String ip2) {
    IPAddressString ipas1 = new IPAddressString(ip1);
    try {
        ipas1.validateIPv4();
    } catch (AddressStringException e) {
        e.printStackTrace();
        throw new IllegalArgumentException("invalid argument: ip1 in IPMatch() function is not an IP address.");
    }
    IPAddressString ipas2 = new IPAddressString(ip2);
    try {
        ipas2.validate();
    } catch (AddressStringException e) {
        e.printStackTrace();
        throw new IllegalArgumentException("invalid argument: ip2 in IPMatch() function is neither an IP address nor a CIDR.");
    }
    if (ipas1.equals(ipas2)) {
        return true;
    }
    IPAddress ipa1;
    IPAddress ipa2;
    try {
        ipa1 = ipas1.toAddress();
        ipa2 = ipas2.toAddress();
    } catch (AddressStringException e) {
        e.printStackTrace();
        throw new IllegalArgumentException("invalid argument: ip1 or ip2 in IPMatch() function is not an IP address.");
    }
    Integer prefix = ipa2.getNetworkPrefixLength();
    IPAddress mask = ipa2.getNetwork().getNetworkMask(prefix, false);
    return ipa1.mask(mask).equals(ipa2.mask(mask));
}