public function setNetwork($subnet, $netmask = null)
{
if ($netmask === null && strpos($subnet, '/') === false) {
throw new Zend_Validate_Exception('If the netmask is not specified then the CIDR (e.g. /24) must be provided');
}
if ($netmask === null) {
$cidr = substr($subnet, strpos($subnet, '/') + 1);
$subnet = substr($subnet, 0, strpos($subnet, '/'));
try {
$ipVersion = App_Util_Ip::getIpVersion($subnet);
if ($ipVersion == App_Util_Ip::v4) {
$netmask = App_Util_Ip::long2ipv4($cidr);
} else {
$netmask = App_Util_Ip::long2ipv6($cidr);
}
} catch (\Application\Exceptions\InvalidArgumentException $e) {
throw new Zend_Validate_Exception('Invalid CIDR specified');
}
} else {
// Only for IPv6 we want to convert the prefix to IP, for other cases everything is fine
if (App_Util_Ip::getIpVersion($subnet) == App_Util_Ip::v6) {
$maskPrefix = explode("/", $netmask);
if (count($maskPrefix) == 2) {
$netmask = $maskPrefix[1];
}
$netmask = App_Util_Ip::long2ipv6($netmask);
}
}
// Final conversion to be able to make bytewise operations
try {
// this is kind of evil but it works fine for ipv4. For newer php
// versions dtr_pton is not working as expected for some ips
$this->_version = App_Util_Ip::getIpVersion($subnet);
if ($this->_version == App_Util_Ip::v4) {
$this->_subnet = ip2long($subnet);
$this->_netmask = ip2long($netmask);
} else {
$this->_subnet = App_Util_Ip::dtr_pton($subnet);
$this->_netmask = App_Util_Ip::dtr_pton($netmask);
}
} catch (Exception $e) {
throw new Zend_Validate_Exception("Unexpected error. Incorrect address");
}
}
public function isValid($value, $context = array())
{
if (!isset($context['network'])) {
$this->_error(self::NOT_IP_ADDRESS);
return false;
}
$network = $context['network'];
$maskPrefix = explode("/", $value);
if (count($maskPrefix) == 2) {
$value = $maskPrefix[1];
}
$network_bytearray = App_Util_Ip::dtr_pton($network);
if (is_numeric($value)) {
if ($value <= 128 && $value > 0) {
if (!filter_var($network, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
$this->_error(self::INCOMPATIBLE_IP);
return false;
}
$mask_bytearray = App_Util_Ip::dtr_pton(App_Util_Ip::long2ipv6($value));
if (($network_bytearray & $mask_bytearray) != $network_bytearray) {
$this->_error(self::INCOMPATIBLE_NETWORK);
return false;
}
return true;
} else {
$this->_error(self::INVALID_IPV6_PREFFIX);
return false;
}
}
if (parent::isValid($value)) {
if (!filter_var($network, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
$this->_error(self::INCOMPATIBLE_IP);
return false;
}
$mask_bytearray = App_Util_Ip::dtr_pton($value);
if (($network_bytearray & $mask_bytearray) != $network_bytearray) {
$this->_error(self::INCOMPATIBLE_NETWORK);
return false;
}
return true;
}
return false;
}
public function testLong2Ipv6()
{
$this->assertEquals("ffff:ffff:0:0:0:0:0:0", App_Util_Ip::long2ipv6(32));
}
