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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Ip.php 24593 2012-01-05 20:35:02Z matthew $
*/
/**
* @see Zend_Validate_Abstract
*/
require_once 'Zend/Validate/Abstract.php';
/**
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Validate_Ip extends Zend_Validate_Abstract
{
const INVALID = 'ipInvalid';
const NOT_IP_ADDRESS = 'notIpAddress';
/**
* @var array
*/
protected $_messageTemplates = array(
self::INVALID => "Invalid type given. String expected",
self::NOT_IP_ADDRESS => "'%value%' does not appear to be a valid IP address",
);
/**
* internal options
*
* @var array
*/
protected $_options = array(
'allowipv6' => true,
'allowipv4' => true
);
/**
* Sets validator options
*
* @param array $options OPTIONAL Options to set, see the manual for all available options
* @return void
*/
public function __construct($options = array())
{
if ($options instanceof Zend_Config) {
$options = $options->toArray();
} else if (!is_array($options)) {
$options = func_get_args();
$temp['allowipv6'] = array_shift($options);
if (!empty($options)) {
$temp['allowipv4'] = array_shift($options);
}
$options = $temp;
}
$options += $this->_options;
$this->setOptions($options);
}
/**
* Returns all set options
*
* @return array
*/
public function getOptions()
{
return $this->_options;
}
/**
* Sets the options for this validator
*
* @param array $options
* @return Zend_Validate_Ip
*/
public function setOptions($options)
{
if (array_key_exists('allowipv6', $options)) {
$this->_options['allowipv6'] = (boolean) $options['allowipv6'];
}
if (array_key_exists('allowipv4', $options)) {
$this->_options['allowipv4'] = (boolean) $options['allowipv4'];
}
if (!$this->_options['allowipv4'] && !$this->_options['allowipv6']) {
require_once 'Zend/Validate/Exception.php';
throw new Zend_Validate_Exception('Nothing to validate. Check your options');
}
return $this;
}
/**
* Defined by Zend_Validate_Interface
*
* Returns true if and only if $value is a valid IP address
*
* @param mixed $value
* @return boolean
*/
public function isValid($value)
{
if (!is_string($value)) {
$this->_error(self::INVALID);
return false;
}
$this->_setValue($value);
if (($this->_options['allowipv4'] && !$this->_options['allowipv6'] && !$this->_validateIPv4($value)) ||
(!$this->_options['allowipv4'] && $this->_options['allowipv6'] && !$this->_validateIPv6($value)) ||
($this->_options['allowipv4'] && $this->_options['allowipv6'] && !$this->_validateIPv4($value) && !$this->_validateIPv6($value))) {
$this->_error(self::NOT_IP_ADDRESS);
return false;
}
return true;
}
/**
* Validates an IPv4 address
*
* @param string $value
*/
protected function _validateIPv4($value) {
$ip2long = ip2long($value);
if($ip2long === false) {
return false;
}
return $value == long2ip($ip2long);
}
/**
* Validates an IPv6 address
*
* @param string $value Value to check against
* @return boolean True when $value is a valid ipv6 address
* False otherwise
*/
protected function _validateIPv6($value) {
if (strlen($value) < 3) {
return $value == '::';
}
if (strpos($value, '.')) {
$lastcolon = strrpos($value, ':');
if (!($lastcolon && $this->_validateIPv4(substr($value, $lastcolon + 1)))) {
return false;
}
$value = substr($value, 0, $lastcolon) . ':0:0';
}
if (strpos($value, '::') === false) {
return preg_match('/\A(?:[a-f0-9]{1,4}:){7}[a-f0-9]{1,4}\z/i', $value);
}
$colonCount = substr_count($value, ':');
if ($colonCount < 8) {
return preg_match('/\A(?::|(?:[a-f0-9]{1,4}:)+):(?:(?:[a-f0-9]{1,4}:)*[a-f0-9]{1,4})?\z/i', $value);
}
// special case with ending or starting double colon
if ($colonCount == 8) {
return preg_match('/\A(?:::)?(?:[a-f0-9]{1,4}:){6}[a-f0-9]{1,4}(?:::)?\z/i', $value);
}
return false;
}
}