Criteo Bid Adapter: Read GPP from ortb2 object (prebid#9775)

Add support of GPP consent string when it is present in ortb2 object.

modules/criteoBidAdapter.js

@@ -418,7 +418,9 @@ function buildCdbRequest(context, bidRequests, bidderRequest) {
  ext: bidderRequest.publisherExt,
  },
  regs: {
- coppa: bidderRequest.coppa === true ? 1 : (bidderRequest.coppa === false ? 0 : undefined)
+ coppa: bidderRequest.coppa === true ? 1 : (bidderRequest.coppa === false ? 0 : undefined),
+ gpp: bidderRequest.ortb2?.regs?.gpp,
+ gpp_sid: bidderRequest.ortb2?.regs?.gpp_sid
  },
  slots: bidRequests.map(bidRequest => {
  networkId = bidRequest.params.networkId || networkId;

test/spec/modules/criteoBidAdapter_spec.js

@@ -883,6 +883,35 @@ describe('The Criteo bidding adapter', function () {
  expect(request.data.user.uspIab).to.equal('1YNY');
  });
 
+ it('should properly build a request with gpp consent field', function () {
+ const bidRequests = [
+ {
+ bidder: 'criteo',
+ adUnitCode: 'bid-123',
+ transactionId: 'transaction-123',
+ mediaTypes: {
+ banner: {
+ sizes: [[728, 90]]
+ }
+ },
+ params: {
+ zoneId: 123,
+ },
+ },
+ ];
+ const ortb2 = {
+ regs: {
+ gpp: 'gpp_consent_string',
+ gpp_sid: [0, 1, 2]
+ }
+ };
+
+ const request = spec.buildRequests(bidRequests, { ...bidderRequest, ortb2 });
+ expect(request.data.regs).to.not.be.null;
+ expect(request.data.regs.gpp).to.equal('gpp_consent_string');
+ expect(request.data.regs.gpp_sid).to.deep.equal([0, 1, 2]);
+ });
+
  it('should properly build a request with schain object', function () {
  const expectedSchain = {
  someProperty: 'someValue'