add matomo, slim down a few lines

static/matomo-proxy.php

@@ -0,0 +1,36 @@
+<?php
+
+define('MATOMO_PROXY_FROM_ENDPOINT', 1);
+
+$path = 'index.php';
+
+$SUPPORTED_METHODS = [
+    'CoreAdminHome.optOut'
+];
+$VALID_FILES = [
+    'plugins/CoreAdminHome/javascripts/optOut.js'
+];
+
+$module = isset($_GET['module']) ? $_GET['module'] : null;
+if (empty($module)) {
+    $module = isset($_POST['module']) ? $_POST['module'] : null;
+}
+
+$action = isset($_GET['action']) ? $_GET['action'] : null;
+if (empty($action)) {
+    $action = isset($_POST['action']) ? $_POST['action'] : null;
+}
+
+$filerequest = isset($_GET['file']) ? $_GET['file'] : null;
+if (empty($filerequest)) {
+    $filerequest = isset($_POST['file']) ? $_POST['file'] : null;
+}
+
+if (!(isset($filerequest) && in_array($filerequest, $VALID_FILES))
+    && !(isset($module) && isset($action) && in_array("$module.$action", $SUPPORTED_METHODS))
+) {
+    http_response_code(404);
+    exit;
+}
+
+include dirname(__FILE__) . '/proxy.php';

static/piwik.php

@@ -0,0 +1,14 @@
+<?php
+/**
+ * Piwik - free/libre analytics platform
+ * Piwik Proxy Hide URL
+ *
+ * @link http://piwik.org/faq/how-to/#faq_132
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ */
+
+define('MATOMO_PROXY_FROM_ENDPOINT', 1);
+
+$path = "piwik.php";
+
+include dirname(__FILE__) . '/proxy.php';