Do not throw an error when adding the same push device twice (#10770)

* do not throw an error when adding the same push device twice

* fix spelling

* fix linting

test/api/v3/integration/user/POST-user_push_device.test.js

@@ -39,14 +39,16 @@ describe('POST /user/push-devices', () => {
       });
   });
 
-  it('returns an error if user already has the push device', async () => {
+  it('fails silently if user already has the push device', async () => {
     await user.post('/user/push-devices', {type, regId});
-    await expect(user.post('/user/push-devices', {type, regId}))
-      .to.eventually.be.rejected.and.eql({
-        code: 401,
-        error: 'NotAuthorized',
-        message: t('pushDeviceAlreadyAdded'),
-      });
+    const response = await user.post('/user/push-devices', {type, regId});
+    await user.sync();
+
+    expect(response.message).to.equal(t('pushDeviceAdded'));
+    expect(response.data[0].type).to.equal(type);
+    expect(response.data[0].regId).to.equal(regId);
+    expect(user.pushDevices[0].type).to.equal(type);
+    expect(user.pushDevices[0].regId).to.equal(regId);
   });
 
   it('adds a push device to the user', async () => {

website/server/controllers/api-v3/pushNotifications.js

@@ -1,6 +1,5 @@
 import { authWithHeaders } from '../../middlewares/auth';
 import {
-  NotAuthorized,
   NotFound,
 } from '../../libs/errors';
 import { model as PushDevice } from '../../models/pushDevice';
@@ -39,8 +38,10 @@ api.addPushDevice = {
       type: req.body.type,
     };
 
+    // When adding a duplicate push device, fail silently instead of throwing an error
     if (pushDevices.find(device => device.regId === item.regId)) {
-      throw new NotAuthorized(res.t('pushDeviceAlreadyAdded'));
+      res.respond(200, user.pushDevices, res.t('pushDeviceAdded'));
+      return;
     }
 
     // Concurrency safe update