New Adapter: Insticator

adapters/insticator/insticator.go

@@ -0,0 +1,328 @@
+package insticator
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/prebid/openrtb/v20/openrtb2"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/mathutil"
+)
+
+type ext struct {
+	Insticator impInsticatorExt `json:"insticator"`
+}
+
+type impInsticatorExt struct {
+	AdUnitId    string `json:"adUnitId"`
+	PublisherId string `json:"publisherId"`
+}
+
+type adapter struct {
+	endpoint string
+}
+
+type reqExt struct {
+	Insticator *reqInsticatorExt `json:"insticator,omitempty"`
+}
+
+type reqInsticatorExt struct {
+	Caller []insticatorCaller `json:"caller,omitempty"`
+}
+
+type insticatorCaller struct {
+	Name    string `json:"name,omitempty"`
+	Version string `json:"version,omitempty"`
+}
+
+// caller Info used to track Prebid Server
+// as one of the hops in the request to exchange
+var caller = insticatorCaller{"Prebid-Server", "n/a"}
+
+type bidExt struct {
+	Insticator bidInsticatorExt `json:"insticator,omitempty"`
+}
+
+type bidInsticatorExt struct {
+	MediaType string `json:"mediaType,omitempty"`
+}
+
+// Builder builds a new instance of the Insticator adapter with the given config.
+func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
+	bidder := &adapter{
+		endpoint: config.Endpoint,
+	}
+	return bidder, nil
+}
+
+// getMediaTypeForBid figures out which media type this bid is for
+func getMediaTypeForBid(bid *openrtb2.Bid) openrtb_ext.BidType {
+	switch bid.MType {
+	case openrtb2.MarkupBanner:
+		return openrtb_ext.BidTypeBanner
+	case openrtb2.MarkupVideo:
+		return openrtb_ext.BidTypeVideo
+	default:
+		return openrtb_ext.BidTypeBanner
+	}
+}
+
+func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
+	var errs []error
+	var adapterRequests []*adapters.RequestData
+	var groupedImps = make(map[string][]openrtb2.Imp)
+
+	reqExt, err := makeReqExt(request)
+	if err != nil {
+		errs = append(errs, err)
+	}
+
+	request.Ext = reqExt
+
+	// Create a copy of the request to avoid modifying the original request
+	requestCopy := *request
+
+	for i := 0; i < len(request.Imp); i++ {
+		impCopy, impKey, err := makeImps(request.Imp[i])
+		if err != nil {
+			errs = append(errs, err)
+			continue
+		}
+
+		// Populate site.publisher.id from imp extension
+		if requestCopy.Site != nil || requestCopy.App != nil {
+			if err := populatePublisherId(&impCopy, &requestCopy); err != nil {
+				errs = append(errs, err)
+				continue
+			}
+		}
+
+		resolvedBidFloor, errFloor := resolveBidFloor(impCopy.BidFloor, impCopy.BidFloorCur, requestInfo)
+		if errFloor != nil {
+			errs = append(errs, &errortypes.BadInput{
+				Message: fmt.Sprintf("Error in converting the provided bid floor currency from %s to USD",
+					impCopy.BidFloorCur),
+			})
+			continue
+		}
+		if resolvedBidFloor > 0 {
+			impCopy.BidFloor = resolvedBidFloor
+			impCopy.BidFloorCur = "USD"
+		}
+
+		groupedImps[impKey] = append(groupedImps[impKey], impCopy)
+	}
+
+	for _, impList := range groupedImps {
+		if adapterReq, err := a.makeRequest(&requestCopy, impList); err == nil {
+			adapterRequests = append(adapterRequests, adapterReq)
+		} else {
+			errs = append(errs, err)
+		}
+	}
+	return adapterRequests, errs
+}
+
+func (a *adapter) makeRequest(request *openrtb2.BidRequest, impList []openrtb2.Imp) (*adapters.RequestData, error) {
+	request.Imp = impList
+
+	reqJSON, err := jsonutil.Marshal(request)
+	if err != nil {
+		return nil, err
+	}
+
+	headers := http.Header{}
+	headers.Add("Content-Type", "application/json;charset=utf-8")
+	headers.Add("Accept", "application/json")
+
+	if request.Device != nil {
+		if len(request.Device.UA) > 0 {
+			headers.Add("User-Agent", request.Device.UA)
+		}
+
+		if len(request.Device.IPv6) > 0 {
+			headers.Add("X-Forwarded-For", request.Device.IPv6)
+		}
+
+		if len(request.Device.IP) > 0 {
+			headers.Add("X-Forwarded-For", request.Device.IP)
+			headers.Add("IP", request.Device.IP)
+		}
+	}
+
+	return &adapters.RequestData{
+		Method:  "POST",
+		Uri:     a.endpoint,
+		Body:    reqJSON,
+		Headers: headers,
+		ImpIDs:  openrtb_ext.GetImpIDs(request.Imp),
+	}, nil
+}
+
+func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
+	if adapters.IsResponseStatusCodeNoContent(responseData) {
+		return nil, nil
+	}
+
+	if err := adapters.CheckResponseStatusCodeForErrors(responseData); err != nil {
+		return nil, []error{err}
+	}
+
+	var response openrtb2.BidResponse
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
+		return nil, []error{err}
+	}
+
+	bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(request.Imp))
+	if response.Cur != "" {
+		bidResponse.Currency = response.Cur
+	}
+	for _, seatBid := range response.SeatBid {
+		for i := range seatBid.Bid {
+			bid := &seatBid.Bid[i]
+			bidType := getMediaTypeForBid(bid)
+			b := &adapters.TypedBid{
+				Bid:     &seatBid.Bid[i],
+				BidType: bidType,
+			}
+			bidResponse.Bids = append(bidResponse.Bids, b)
+		}
+	}
+	return bidResponse, nil
+}
+
+func makeImps(imp openrtb2.Imp) (openrtb2.Imp, string, error) {
+	var bidderExt adapters.ExtImpBidder
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		return openrtb2.Imp{}, "", &errortypes.BadInput{
+			Message: err.Error(),
+		}
+	}
+
+	var insticatorExt openrtb_ext.ExtImpInsticator
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &insticatorExt); err != nil {
+		return openrtb2.Imp{}, "", &errortypes.BadInput{
+			Message: err.Error(),
+		}
+	}
+
+	// Directly construct the impExt
+	impExt := ext{
+		Insticator: impInsticatorExt{
+			AdUnitId:    insticatorExt.AdUnitId,
+			PublisherId: insticatorExt.PublisherId,
+		},
+	}
+
+	impExtJSON, err := jsonutil.Marshal(impExt)
+	if err != nil {
+		return openrtb2.Imp{}, "", &errortypes.BadInput{
+			Message: err.Error(),
+		}
+	}
+	imp.Ext = impExtJSON
+
+	// Validate Video if it exists
+	if imp.Video != nil {
+		if err := validateVideoParams(imp.Video); err != nil {
+			return openrtb2.Imp{}, insticatorExt.AdUnitId, &errortypes.BadInput{
+				Message: err.Error(),
+			}
+		}
+	}
+
+	// Return the imp, AdUnitId, and no error
+	return imp, insticatorExt.AdUnitId, nil
+}
+
+func makeReqExt(request *openrtb2.BidRequest) ([]byte, error) {
+	var reqExt reqExt
+
+	if len(request.Ext) > 0 {
+		if err := jsonutil.Unmarshal(request.Ext, &reqExt); err != nil {
+			return nil, err
+		}
+	}
+
+	if reqExt.Insticator == nil {
+		reqExt.Insticator = &reqInsticatorExt{}
+	}
+
+	if reqExt.Insticator.Caller == nil {
+		reqExt.Insticator.Caller = make([]insticatorCaller, 0)
+	}
+
+	reqExt.Insticator.Caller = append(reqExt.Insticator.Caller, caller)
+
+	return jsonutil.Marshal(reqExt)
+}
+
+func resolveBidFloor(bidFloor float64, bidFloorCur string, reqInfo *adapters.ExtraRequestInfo) (float64, error) {
+	if bidFloor > 0 && bidFloorCur != "" && strings.ToUpper(bidFloorCur) != "USD" {
+		floor, err := reqInfo.ConvertCurrency(bidFloor, bidFloorCur, "USD")
+		return mathutil.RoundTo4Decimals(floor), err
+	}
+
+	return bidFloor, nil
+}
+
+func validateVideoParams(video *openrtb2.Video) error {
+	if (video.W == nil || *video.W == 0) || (video.H == nil || *video.H == 0) || video.MIMEs == nil {
+		return &errortypes.BadInput{
+			Message: "One or more invalid or missing video field(s) w, h, mimes",
+		}
+	}
+
+	return nil
+}
+
+// populatePublisherId function populates site.publisher.id or app.publisher.id
+func populatePublisherId(imp *openrtb2.Imp, request *openrtb2.BidRequest) error {
+	var ext ext
+
+	// Unmarshal the imp extension to get the publisher ID
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
+		return &errortypes.BadInput{Message: "Error unmarshalling imp extension"}
+	}
+
+	// Populate site.publisher.id if request.Site is not nil
+	if request.Site != nil {
+		// Make a shallow copy of Site if it already exists
+		siteCopy := *request.Site
+		request.Site = &siteCopy
+
+		// Make a shallow copy of Publisher if it already exists
+		if request.Site.Publisher != nil {
+			publisherCopy := *request.Site.Publisher
+			request.Site.Publisher = &publisherCopy
+		} else {
+			request.Site.Publisher = &openrtb2.Publisher{}
+		}
+
+		request.Site.Publisher.ID = ext.Insticator.PublisherId
+	}
+
+	// Populate app.publisher.id if request.App is not nil
+	if request.App != nil {
+		// Make a shallow copy of App if it already exists
+		appCopy := *request.App
+		request.App = &appCopy
+
+		// Make a shallow copy of Publisher if it already exists
+		if request.App.Publisher != nil {
+			publisherCopy := *request.App.Publisher
+			request.App.Publisher = &publisherCopy
+		} else {
+			request.App.Publisher = &openrtb2.Publisher{}
+		}
+
+		request.App.Publisher.ID = ext.Insticator.PublisherId
+	}
+
+	return nil
+}

adapters/insticator/insticator_test.go

@@ -0,0 +1,21 @@
+package insticator
+
+import (
+	"testing"
+
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+)
+
+func TestJsonSamples(t *testing.T) {
+	bidder, buildErr := Builder(openrtb_ext.BidderInsticator, config.Adapter{
+		Endpoint: "https://insticator.example.com/v1/pbs"},
+		config.Server{ExternalUrl: "https://insticator.example.com/v1/pbs", GvlID: 1, DataCenter: "2"})
+
+	if buildErr != nil {
+		t.Fatalf("Builder returned unexpected error %v", buildErr)
+	}
+
+	adapterstest.RunJSONBidderTest(t, "insticatortest", bidder)
+}