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pangle.go
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pangle.go
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package pangle
import (
"encoding/json"
"fmt"
"net/http"
"github.com/prebid/openrtb/v20/openrtb2"
"github.com/prebid/prebid-server/v2/adapters"
"github.com/prebid/prebid-server/v2/config"
"github.com/prebid/prebid-server/v2/errortypes"
"github.com/prebid/prebid-server/v2/openrtb_ext"
)
type adapter struct {
Endpoint string
}
type NetworkIDs struct {
AppID string `json:"appid,omitempty"`
PlacementID string `json:"placementid,omitempty"`
}
type wrappedExtImpBidder struct {
*adapters.ExtImpBidder
AdType int `json:"adtype,omitempty"`
IsPrebid bool `json:"is_prebid,omitempty"`
NetworkIDs *NetworkIDs `json:"networkids,omitempty"`
}
type pangleBidExt struct {
Pangle *bidExt `json:"pangle,omitempty"`
}
type bidExt struct {
AdType *int `json:"adtype,omitempty"`
}
/* Builder */
func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
bidder := &adapter{
Endpoint: config.Endpoint,
}
return bidder, nil
}
/* MakeRequests */
func getAdType(imp openrtb2.Imp, parsedImpExt *wrappedExtImpBidder) int {
// video
if imp.Video != nil {
if parsedImpExt != nil && parsedImpExt.Prebid != nil && parsedImpExt.Prebid.IsRewardedInventory != nil && *parsedImpExt.Prebid.IsRewardedInventory == 1 {
return 7
}
if imp.Instl == 1 {
return 8
}
}
// banner
if imp.Banner != nil {
if imp.Instl == 1 {
return 2
} else {
return 1
}
}
// native
if imp.Native != nil && len(imp.Native.Request) > 0 {
return 5
}
return -1
}
func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
var requests []*adapters.RequestData
var errs []error
requestCopy := *request
for _, imp := range request.Imp {
var impExt wrappedExtImpBidder
if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
errs = append(errs, fmt.Errorf("failed unmarshalling imp ext (err)%s", err.Error()))
continue
}
// get token & networkIDs
var bidderImpExt openrtb_ext.ImpExtPangle
if err := json.Unmarshal(impExt.Bidder, &bidderImpExt); err != nil {
errs = append(errs, fmt.Errorf("failed unmarshalling bidder imp ext (err)%s", err.Error()))
continue
}
// detect and fill adtype
adType := getAdType(imp, &impExt)
if adType == -1 {
errs = append(errs, &errortypes.BadInput{Message: "not a supported adtype"})
continue
}
// remarshal imp.ext
impExt.AdType = adType
impExt.IsPrebid = true
if len(bidderImpExt.AppID) > 0 && len(bidderImpExt.PlacementID) > 0 {
impExt.NetworkIDs = &NetworkIDs{
AppID: bidderImpExt.AppID,
PlacementID: bidderImpExt.PlacementID,
}
} else if len(bidderImpExt.AppID) > 0 || len(bidderImpExt.PlacementID) > 0 {
errs = append(errs, &errortypes.BadInput{Message: "only one of appid or placementid is provided"})
continue
}
if newImpExt, err := json.Marshal(impExt); err == nil {
imp.Ext = newImpExt
} else {
errs = append(errs, fmt.Errorf("failed re-marshalling imp ext"))
continue
}
requestCopy.Imp = []openrtb2.Imp{imp}
requestJSON, err := json.Marshal(requestCopy)
if err != nil {
errs = append(errs, err)
continue
}
requestData := &adapters.RequestData{
Method: "POST",
Uri: a.Endpoint,
Body: requestJSON,
Headers: http.Header{
"TOKEN": []string{bidderImpExt.Token},
"Content-Type": []string{"application/json"},
},
}
requests = append(requests, requestData)
}
return requests, errs
}
/* MakeBids */
func getMediaTypeForBid(bid *openrtb2.Bid) (openrtb_ext.BidType, error) {
if bid == nil {
return "", fmt.Errorf("the bid request object is nil")
}
var bidExt pangleBidExt
if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
return "", fmt.Errorf("invalid bid ext")
} else if bidExt.Pangle == nil || bidExt.Pangle.AdType == nil {
return "", fmt.Errorf("missing pangleExt/adtype in bid ext")
}
switch *bidExt.Pangle.AdType {
case 1:
return openrtb_ext.BidTypeBanner, nil
case 2:
return openrtb_ext.BidTypeBanner, nil
case 5:
return openrtb_ext.BidTypeNative, nil
case 7:
return openrtb_ext.BidTypeVideo, nil
case 8:
return openrtb_ext.BidTypeVideo, nil
}
return "", fmt.Errorf("unrecognized adtype in response")
}
func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
if responseData.StatusCode == http.StatusNoContent {
return nil, nil
}
if responseData.StatusCode == http.StatusBadRequest {
err := &errortypes.BadInput{
Message: "Unexpected status code: 400. Bad request from publisher. Run with request.debug = 1 for more info.",
}
return nil, []error{err}
}
if responseData.StatusCode != http.StatusOK {
err := &errortypes.BadServerResponse{
Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info.", responseData.StatusCode),
}
return nil, []error{err}
}
var response openrtb2.BidResponse
if err := json.Unmarshal(responseData.Body, &response); err != nil {
return nil, []error{err}
}
var errs []error
bidResponse := adapters.NewBidderResponseWithBidsCapacity(1)
bidResponse.Currency = response.Cur
for _, seatBid := range response.SeatBid {
for _, temp := range seatBid.Bid {
bid := temp // avoid taking address of a for loop variable
mediaType, err := getMediaTypeForBid(&bid)
if err != nil {
errs = append(errs, err)
continue
}
b := &adapters.TypedBid{
Bid: &bid,
BidType: mediaType,
}
bidResponse.Bids = append(bidResponse.Bids, b)
}
}
return bidResponse, errs
}