update Piwik to version 2.16 (fixes #91)

www/analytics/plugins/CoreHome/angularjs/http404check.js

@@ -0,0 +1,52 @@
+(function () {
+    angular.module('piwikApp').factory('http404CheckInterceptor', http404CheckInterceptor);
+
+    http404CheckInterceptor.$inject = ['$q'];
+
+    function http404CheckInterceptor($q) {
+
+        function isClientError(rejection)
+        {
+            if (rejection.status === 500) {
+                return true;
+            }
+
+            return rejection.status >= 400 && rejection.status < 408;
+        }
+
+        return {
+
+            'responseError': function(rejection) {
+                if (rejection &&
+                    isClientError(rejection) &&
+                    rejection.config &&
+                    rejection.config.url &&
+                    -1 !== rejection.config.url.indexOf('.html') &&
+                    -1 !== rejection.config.url.indexOf('plugins')) {
+
+                    var posEndUrl = rejection.config.url.indexOf('.html') + 5;
+                    var url       = rejection.config.url.substr(0, posEndUrl);
+
+                    var message = 'Please check your server configuration. You may want to whitelist "*.html" files from the "plugins" directory.';
+                    message    += ' The HTTP status code is ' + rejection.status + ' for URL "' + url + '"';
+
+                    var UI = require('piwik/UI');
+                    var notification = new UI.Notification();
+                    notification.show(message, {
+                        title: 'Failed to load HTML file:',
+                        context: 'error',
+                        id: 'Network_HtmlFileLoadingError'
+                    });
+                }
+
+                return $q.reject(rejection);
+            }
+        };
+    }
+
+    angular.module('piwikApp').config(['$httpProvider',function($httpProvider) {
+        $httpProvider.interceptors.push('http404CheckInterceptor');
+    }]);
+
+
+})();