From d4f57ee85a0fb5ae2d56affdd90994ac0f4ea627 Mon Sep 17 00:00:00 2001
From: Demetrio Girardi <dgirardi@prebid.org>
Date: Thu, 24 Oct 2024 07:47:42 -0700
Subject: [PATCH] bidResponseFilter Module : do not run if not configured
 (#12362)

* bidResponseFilter: do not run if not configured

* fix lint

* fix tests
---
 modules/bidResponseFilter/index.js          | 21 ++++++--
 test/spec/modules/bidResponseFilter_spec.js | 57 ++++++++++++++++++---
 2 files changed, 67 insertions(+), 11 deletions(-)

diff --git a/modules/bidResponseFilter/index.js b/modules/bidResponseFilter/index.js
index 3ace8108d2b..5b138965983 100644
--- a/modules/bidResponseFilter/index.js
+++ b/modules/bidResponseFilter/index.js
@@ -7,14 +7,29 @@ export const BID_CATEGORY_REJECTION_REASON = 'Category is not allowed';
 export const BID_ADV_DOMAINS_REJECTION_REASON = 'Adv domain is not allowed';
 export const BID_ATTR_REJECTION_REASON = 'Attr is not allowed';
 
+let moduleConfig;
+let enabled = false;
+
 function init() {
-  getHook('addBidResponse').before(addBidResponseHook);
-};
+  config.getConfig(MODULE_NAME, (cfg) => {
+    moduleConfig = cfg[MODULE_NAME];
+    if (enabled && !moduleConfig) {
+      reset();
+    } else if (!enabled && moduleConfig) {
+      enabled = true;
+      getHook('addBidResponse').before(addBidResponseHook);
+    }
+  })
+}
+
+export function reset() {
+  enabled = false;
+  getHook('addBidResponse').getHooks({hook: addBidResponseHook}).remove();
+}
 
 export function addBidResponseHook(next, adUnitCode, bid, reject, index = auctionManager.index) {
   const {bcat = [], badv = []} = index.getOrtb2(bid) || {};
   const battr = index.getBidRequest(bid)?.ortb2Imp[bid.mediaType]?.battr || index.getAdUnit(bid)?.ortb2Imp[bid.mediaType]?.battr || [];
-  const moduleConfig = config.getConfig(MODULE_NAME);
 
   const catConfig = {enforce: true, blockUnknown: true, ...(moduleConfig?.cat || {})};
   const advConfig = {enforce: true, blockUnknown: true, ...(moduleConfig?.adv || {})};
diff --git a/test/spec/modules/bidResponseFilter_spec.js b/test/spec/modules/bidResponseFilter_spec.js
index 3990cd3feb3..c4b4a776243 100644
--- a/test/spec/modules/bidResponseFilter_spec.js
+++ b/test/spec/modules/bidResponseFilter_spec.js
@@ -1,15 +1,53 @@
-import { BID_ADV_DOMAINS_REJECTION_REASON, BID_ATTR_REJECTION_REASON, BID_CATEGORY_REJECTION_REASON, MODULE_NAME, PUBLISHER_FILTER_REJECTION_REASON, addBidResponseHook } from '../../../modules/bidResponseFilter';
-import { config } from '../../../src/config';
+import {
+  addBidResponseHook,
+  BID_ADV_DOMAINS_REJECTION_REASON,
+  BID_ATTR_REJECTION_REASON,
+  BID_CATEGORY_REJECTION_REASON,
+  init,
+  MODULE_NAME
+  , reset} from '../../../modules/bidResponseFilter';
+import {config} from '../../../src/config';
+import {addBidResponse} from '../../../src/auction.js';
 
 describe('bidResponseFilter', () => {
   let mockAuctionIndex
   beforeEach(() => {
-    config.resetConfig();
     mockAuctionIndex = {
-      getBidRequest: () => {},
-      getAdUnit: () => {}
+      getBidRequest: () => {
+      },
+      getAdUnit: () => {
+      }
     };
   });
+  afterEach(() => {
+    config.resetConfig();
+    reset();
+  })
+
+  describe('enable/disable', () => {
+    let reject, dispatch;
+
+    beforeEach(() => {
+      reject = sinon.stub();
+      dispatch = sinon.stub();
+    });
+
+    it('should not run if not configured', () => {
+      reset();
+      addBidResponse.call({dispatch}, 'au', {}, reject);
+      sinon.assert.notCalled(reject);
+      sinon.assert.called(dispatch);
+    });
+
+    it('should run if configured', () => {
+      config.setConfig({
+        bidResponseFilter: {}
+      });
+      addBidResponse.call({dispatch}, 'au', {}, reject);
+      sinon.assert.called(reject);
+      sinon.assert.notCalled(dispatch);
+    })
+  });
 
   it('should pass the bid after successful ortb2 rules validation', () => {
     const call = sinon.stub();
@@ -26,7 +64,8 @@ describe('bidResponseFilter', () => {
       }
     };
 
-    addBidResponseHook(call, 'adcode', bid, () => {}, mockAuctionIndex);
+    addBidResponseHook(call, 'adcode', bid, () => {
+    }, mockAuctionIndex);
     sinon.assert.calledOnce(call);
   });
 
@@ -109,7 +148,8 @@ describe('bidResponseFilter', () => {
 
     config.setConfig({[MODULE_NAME]: {cat: {enforce: false}}});
 
-    addBidResponseHook(call, 'adcode', bid, () => {}, mockAuctionIndex);
+    addBidResponseHook(call, 'adcode', bid, () => {
+    }, mockAuctionIndex);
     sinon.assert.calledOnce(call);
   });
 
@@ -129,7 +169,8 @@ describe('bidResponseFilter', () => {
 
     config.setConfig({[MODULE_NAME]: {cat: {blockUnknown: false}}});
 
-    addBidResponseHook(call, 'adcode', bid, () => {});
+    addBidResponseHook(call, 'adcode', bid, () => {
+    });
     sinon.assert.calledOnce(call);
   });
 })