YuCheng Hu
b282d1a279
+YUCHENG HU+ git-svn-id: https://svn.code.sf.net/p/hawebs/svn@483 a2543c7e-f6e9-4f8a-8bff-1ffc34733512
80 lines
1.8 KiB
PHP
80 lines
1.8 KiB
PHP
<?php
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/**
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* Piwik - Open source web analytics
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*
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* @link http://piwik.org
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* @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
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* @version $Id: AnonymizeIP.php 2264 2010-06-03 16:53:43Z vipsoft $
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*
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* @category Piwik_Plugins
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* @package Piwik_AnonymizeIP
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*/
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/**
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* Anonymize visitor IP addresses to comply with the privacy laws/guidelines in countries, such as Germany.
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*
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* @package Piwik_AnonymizeIP
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*/
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class Piwik_AnonymizeIP extends Piwik_Plugin
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{
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/**
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* Get plugin information
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*/
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public function getInformation()
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{
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return array(
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'description' => Piwik_Translate('AnonymizeIP_PluginDescription'),
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'author' => 'Piwik',
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'author_homepage' => 'http://piwik.org/',
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'version' => Piwik_Version::VERSION,
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'TrackerPlugin' => true,
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);
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}
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/**
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* Get list of hooks to register
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*/
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public function getListHooksRegistered()
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{
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return array(
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'Tracker.saveVisitorInformation' => 'anonymizeVisitorIpAddress',
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);
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}
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/**
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* Internal function to mask portions of the visitor IP address
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*
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* @param $ip Unsigned long representation of IP address
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* @param $maskLength Number of octets to reset
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*/
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static public function applyIPMask($ip, $maskLength)
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{
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$maskedIP = pack('V', (float)$ip);
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switch($maskLength) {
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case 4:
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$maskedIP[3] = "\0";
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case 3:
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$maskedIP[2] = "\0";
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case 2:
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$maskedIP[1] = "\0";
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case 1:
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$maskedIP[0] = "\0";
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case 0:
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default:
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}
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$res = unpack('V', $maskedIP);
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return sprintf("%u", $res[1]);
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}
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/**
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* Hook on Tracker.saveVisitorInformation to anonymize visitor IP addresses
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*/
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function anonymizeVisitorIpAddress($notification)
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{
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$visitorInfo =& $notification->getNotificationObject();
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$visitorInfo['location_ip'] = self::applyIPMask($visitorInfo['location_ip'], Piwik_Tracker_Config::getInstance()->Tracker['ip_address_mask_length']);
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}
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}
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