fix labels and text editors for Quest creation

www/analytics/plugins/PrivacyManager/IPAnonymizer.php

@@ -0,0 +1,96 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+namespace Piwik\Plugins\PrivacyManager;
+
+use Piwik\Common;
+use Piwik\IP;
+
+/**
+ * Anonymize visitor IP addresses to comply with the privacy laws/guidelines in countries, such as Germany.
+ */
+class IPAnonymizer
+{
+    /**
+     * Internal function to mask portions of the visitor IP address
+     *
+     * @param string $ip IP address in network address format
+     * @param int $maskLength Number of octets to reset
+     * @return string
+     */
+    public static function applyIPMask($ip, $maskLength)
+    {
+        // IPv4 or mapped IPv4 in IPv6
+        if (IP::isIPv4($ip)) {
+            $i = strlen($ip);
+            if ($maskLength > $i) {
+                $maskLength = $i;
+            }
+
+            while ($maskLength-- > 0) {
+                $ip[--$i] = chr(0);
+            }
+        } else {
+            $masks = array(
+                'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff',
+                'ffff:ffff:ffff:ffff::',
+                'ffff:ffff:ffff:0000::',
+                'ffff:ff00:0000:0000::'
+            );
+            $ip = $ip & pack('a16', inet_pton($masks[$maskLength]));
+        }
+        return $ip;
+    }
+
+    /**
+     * Hook on Tracker.Visit.setVisitorIp to anomymize visitor IP addresses
+     */
+    public function setVisitorIpAddress(&$ip)
+    {
+        if (!$this->isActive()) {
+            Common::printDebug("Visitor IP was _not_ anonymized: ". IP::N2P($ip));
+            return;
+        }
+
+        $originalIp = $ip;
+
+        $privacyConfig = new Config();
+
+        $ip = self::applyIPMask($ip, $privacyConfig->ipAddressMaskLength);
+        Common::printDebug("Visitor IP (was: ". IP::N2P($originalIp) .") has been anonymized: ". IP::N2P($ip));
+    }
+
+    /**
+     * Deactivates IP anonymization. This function will not be called by the Tracker.
+     */
+    public static function deactivate()
+    {
+        $privacyConfig = new Config();
+        $privacyConfig->ipAnonymizerEnabled = false;
+    }
+
+    /**
+     * Activates IP anonymization. This function will not be called by the Tracker.
+     */
+    public static function activate()
+    {
+        $privacyConfig = new Config();
+        $privacyConfig->ipAnonymizerEnabled = true;
+    }
+
+    /**
+     * Returns true if IP anonymization support is enabled, false if otherwise.
+     *
+     * @return bool
+     */
+    public static function isActive()
+    {
+        $privacyConfig = new Config();
+        return $privacyConfig->ipAnonymizerEnabled;
+    }
+}