Normalize headers values for pubsub

lib/api/middlewares/error-middleware.js

@@ -38,7 +38,7 @@ module.exports = function errorMiddleware (/* options */) {
             res.json(errorResponseBody);
         }
 
-        next();
+        return next();
     };
 };
 

lib/api/middlewares/pubsub-metrics.js

@@ -1,6 +1,7 @@
 'use strict';
 
 const EVENT_VERSION = '1';
+const MAX_LENGTH = 100;
 
 function pubSubMetrics (pubSubMetricsBackend) {
     if (!pubSubMetricsBackend.isEnabled()) {
@@ -19,9 +20,9 @@ function pubSubMetrics (pubSubMetricsBackend) {
 }
 
 function getEventData (req, res) {
-    const event = req.get('Carto-Event');
-    const eventSource = req.get('Carto-Event-Source');
-    const eventGroupId = req.get('Carto-Event-Group-Id');
+    const event = normalizedField(req.get('Carto-Event'));
+    const eventSource = normalizedField(req.get('Carto-Event-Source'));
+    const eventGroupId = normalizedField(req.get('Carto-Event-Group-Id'));
 
     if (!event || !eventSource) {
         return [undefined, undefined];
@@ -43,4 +44,8 @@ function getEventData (req, res) {
     return { event, attributes };
 }
 
+function normalizedField (field) {
+    return field.toString().substr(0, MAX_LENGTH);
+}
+
 module.exports = pubSubMetrics;