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<?php
/**
* Piwik - Open source web analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
* @category Piwik_Plugins
* @package Piwik_AnonymizeIP
*/
use Piwik\Config;
use Piwik\Common;
use Piwik\Plugin;
/**
* Anonymize visitor IP addresses to comply with the privacy laws/guidelines in countries, such as Germany.
*
* @package Piwik_AnonymizeIP
*/
class Piwik_AnonymizeIP extends Plugin
{
/**
* @see Piwik_Plugin::getInformation
*/
public function getInformation()
{
return array(
'description' => Piwik_Translate('AnonymizeIP_PluginDescription'),
'author' => 'Piwik',
'author_homepage' => 'http://piwik.org/',
'version' => Piwik_Version::VERSION,
);
}
/**
* @see Piwik_Plugin::getListHooksRegistered
*/
public function getListHooksRegistered()
{
return array(
'Tracker.Visit.setVisitorIp' => 'setVisitorIpAddress',
);
}
/**
* Internal function to mask portions of the visitor IP address
*
* @param string $ip IP address in network address format
* @param int $maskLength Number of octets to reset
* @return string
*/
static public function applyIPMask($ip, $maskLength)
{
$i = Common::strlen($ip);
if ($maskLength > $i) {
$maskLength = $i;
}
while ($maskLength-- > 0) {
$ip[--$i] = chr(0);
}
return $ip;
}
/**
* Hook on Tracker.Visit.setVisitorIp to anonymize visitor IP addresses
*/
public function setVisitorIpAddress(&$ip)
{
$ip = self::applyIPMask($ip, Config::getInstance()->Tracker['ip_address_mask_length']);
}
}
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