fix: add flag to annomise event log

src/lib/experimental.ts

@@ -2,6 +2,7 @@ export interface IExperimentalOptions {
     metricsV2?: IExperimentalToggle;
     clientFeatureMemoize?: IExperimentalToggle;
     segments?: IExperimentalSegments;
+    anonymiseEventLog?: boolean;
 }
 
 export interface IExperimentalToggle {

src/lib/routes/admin-api/event.ts

@@ -5,22 +5,35 @@ import EventService from '../../services/event-service';
 import { ADMIN } from '../../types/permissions';
 import { IEvent } from '../../types/events';
 import Controller from '../controller';
+import { anonymise } from '../../util/anonymise';
 
 const version = 1;
-
 export default class EventController extends Controller {
     private eventService: EventService;
 
+    private anonymise: boolean = false;
+
     constructor(
         config: IUnleashConfig,
         { eventService }: Pick<IUnleashServices, 'eventService'>,
     ) {
         super(config);
         this.eventService = eventService;
+        this.anonymise = config.experimental?.anonymiseEventLog;
         this.get('/', this.getEvents, ADMIN);
         this.get('/:name', this.getEventsForToggle);
     }
 
+    fixEvents(events: IEvent[]): IEvent[] {
+        if (this.anonymise) {
+            return events.map((e: IEvent) => ({
+                ...e,
+                createdBy: anonymise(e.createdBy),
+            }));
+        }
+        return events;
+    }
+
     async getEvents(
         req: Request<any, any, any, { project?: string }>,
         res: Response,
@@ -32,7 +45,10 @@ export default class EventController extends Controller {
         } else {
             events = await this.eventService.getEvents();
         }
-        res.json({ version, events });
+        res.json({
+            version,
+            events: this.fixEvents(events),
+        });
     }
 
     async getEventsForToggle(
@@ -42,10 +58,10 @@ export default class EventController extends Controller {
         const toggleName = req.params.name;
         const events = await this.eventService.getEventsForToggle(toggleName);
 
-        if (events) {
-            res.json({ toggleName, events });
-        } else {
-            res.status(404).json({ error: 'Could not find events' });
-        }
+        res.json({
+            version,
+            toggleName,
+            events: this.fixEvents(events),
+        });
     }
 }

src/lib/routes/admin-api/events.test.ts

@@ -5,12 +5,14 @@ import { createTestConfig } from '../../../test/config/test-config';
 import createStores from '../../../test/fixtures/store';
 
 import getApp from '../../app';
+import { FeatureCreatedEvent } from '../../types/events';
 
-async function getSetup() {
+async function getSetup(anonymise: boolean = false) {
     const base = `/random${Math.round(Math.random() * 1000)}`;
     const stores = createStores();
     const config = createTestConfig({
         server: { baseUriPath: base },
+        experimental: { anonymiseEventLog: anonymise },
     });
     const services = createServices(stores, config);
     const app = await getApp(config, stores, services);
@@ -29,3 +31,43 @@ test('should get empty events list via admin', async () => {
             expect(res.body.events.length === 0).toBe(true);
         });
 });
+
+test('should get events list via admin', async () => {
+    const { request, base, eventStore } = await getSetup();
+    eventStore.store(
+        new FeatureCreatedEvent({
+            createdBy: 'some@email.com',
+            data: { name: 'test', project: 'default' },
+            featureName: 'test',
+            project: 'default',
+            tags: [],
+        }),
+    );
+    const { body } = await request
+        .get(`${base}/api/admin/events`)
+        .expect('Content-Type', /json/)
+        .expect(200);
+
+    expect(body.events.length).toBe(1);
+    expect(body.events[0].createdBy).toBe('some@email.com');
+});
+
+test('should anonymise events list via admin', async () => {
+    const { request, base, eventStore } = await getSetup(true);
+    eventStore.store(
+        new FeatureCreatedEvent({
+            createdBy: 'some@email.com',
+            data: { name: 'test', project: 'default' },
+            featureName: 'test',
+            project: 'default',
+            tags: [],
+        }),
+    );
+    const { body } = await request
+        .get(`${base}/api/admin/events`)
+        .expect('Content-Type', /json/)
+        .expect(200);
+
+    expect(body.events.length).toBe(1);
+    expect(body.events[0].createdBy).toBe('676212ff7@unleash.run');
+});

src/lib/util/anonymise.ts

@@ -0,0 +1,9 @@
+import { createHash } from 'crypto';
+
+export function anonymise(s: string): string {
+    const hash = createHash('sha256')
+        .update(s, 'utf-8')
+        .digest('hex')
+        .slice(0, 9);
+    return `${hash}@unleash.run`;
+}

src/server-dev.ts

@@ -34,6 +34,7 @@ process.nextTick(async () => {
                 experimental: {
                     metricsV2: { enabled: true },
                     segments: experimentalSegmentsConfig(),
+                    anonymiseEventLog: false,
                 },
                 authentication: {
                     initApiTokens: [