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sharethrough.go
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sharethrough.go
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package sharethrough
import (
"encoding/json"
"fmt"
"net/http"
"strings"
"github.com/prebid/openrtb/v19/openrtb2"
"github.com/prebid/prebid-server/adapters"
"github.com/prebid/prebid-server/config"
"github.com/prebid/prebid-server/errortypes"
"github.com/prebid/prebid-server/openrtb_ext"
"github.com/prebid/prebid-server/version"
)
var adapterVersion = "10.0"
type adapter struct {
endpoint string
}
// Builder builds a new instance of the Sharethrough adapter for the given bidder 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
}
func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
var requests []*adapters.RequestData
var errors []error
headers := http.Header{}
headers.Add("Content-Type", "application/json;charset=utf-8")
headers.Add("Accept", "application/json")
modifiableSource := openrtb2.Source{}
if request.Source != nil {
modifiableSource = *request.Source
}
var sourceExt map[string]interface{}
if err := json.Unmarshal(modifiableSource.Ext, &sourceExt); err == nil {
sourceExt["str"] = adapterVersion
sourceExt["version"] = version.Ver
} else {
sourceExt = map[string]interface{}{"str": adapterVersion, "version": version.Ver}
}
var err error
if modifiableSource.Ext, err = json.Marshal(sourceExt); err != nil {
errors = append(errors, err)
}
request.Source = &modifiableSource
requestCopy := *request
for _, imp := range request.Imp {
// Extract Sharethrough Params
var strImpExt adapters.ExtImpBidder
if err := json.Unmarshal(imp.Ext, &strImpExt); err != nil {
errors = append(errors, err)
continue
}
var strImpParams openrtb_ext.ExtImpSharethrough
if err := json.Unmarshal(strImpExt.Bidder, &strImpParams); err != nil {
errors = append(errors, err)
continue
}
// Convert Floor into USD
if imp.BidFloor > 0 && imp.BidFloorCur != "" && !strings.EqualFold(imp.BidFloorCur, "USD") {
convertedValue, err := reqInfo.ConvertCurrency(imp.BidFloor, imp.BidFloorCur, "USD")
if err != nil {
return nil, []error{err}
}
imp.BidFloorCur = "USD"
imp.BidFloor = convertedValue
}
// Relocate Custom Params
imp.TagID = strImpParams.Pkey
requestCopy.BCat = append(requestCopy.BCat, strImpParams.BCat...)
requestCopy.BAdv = append(requestCopy.BAdv, strImpParams.BAdv...)
impressionsByMediaType, err := splitImpressionsByMediaType(&imp)
if err != nil {
errors = append(errors, err)
continue
}
for _, impression := range impressionsByMediaType {
requestCopy.Imp = []openrtb2.Imp{impression}
requestJSON, err := json.Marshal(requestCopy)
if err != nil {
errors = append(errors, err)
continue
}
requestData := &adapters.RequestData{
Method: "POST",
Uri: a.endpoint,
Body: requestJSON,
Headers: headers,
}
requests = append(requests, requestData)
}
}
return requests, errors
}
func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, response *adapters.ResponseData) (*adapters.BidderResponse, []error) {
if response.StatusCode == http.StatusNoContent {
return nil, nil
}
if response.StatusCode == http.StatusBadRequest {
return nil, []error{&errortypes.BadInput{
Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode),
}}
}
if response.StatusCode != http.StatusOK {
return nil, []error{fmt.Errorf("unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode)}
}
var bidReq openrtb2.BidRequest
if err := json.Unmarshal(requestData.Body, &bidReq); err != nil {
return nil, []error{err}
}
var bidResp openrtb2.BidResponse
if err := json.Unmarshal(response.Body, &bidResp); err != nil {
return nil, []error{err}
}
bidderResponse := adapters.NewBidderResponse()
bidderResponse.Currency = "USD"
var errors []error
for _, seatBid := range bidResp.SeatBid {
for i := range seatBid.Bid {
bid := &seatBid.Bid[i]
bidType, err := getMediaTypeForBid(*bid)
if err != nil {
errors = append(errors, err)
}
bidderResponse.Bids = append(bidderResponse.Bids, &adapters.TypedBid{
BidType: bidType,
Bid: bid,
})
}
}
return bidderResponse, errors
}
func splitImpressionsByMediaType(impression *openrtb2.Imp) ([]openrtb2.Imp, error) {
if impression.Banner == nil && impression.Video == nil && impression.Native == nil {
return nil, &errortypes.BadInput{Message: "Invalid MediaType. Sharethrough only supports Banner, Video and Native."}
}
if impression.Audio != nil {
impression.Audio = nil
}
impressions := make([]openrtb2.Imp, 0, 3)
if impression.Banner != nil {
impCopy := *impression
impCopy.Video = nil
impCopy.Native = nil
impressions = append(impressions, impCopy)
}
if impression.Video != nil {
impCopy := *impression
impCopy.Banner = nil
impCopy.Native = nil
impressions = append(impressions, impCopy)
}
if impression.Native != nil {
impression.Banner = nil
impression.Video = nil
impressions = append(impressions, *impression)
}
return impressions, nil
}
func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
if bid.Ext != nil {
var bidExt openrtb_ext.ExtBid
err := json.Unmarshal(bid.Ext, &bidExt)
if err == nil && bidExt.Prebid != nil {
return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
}
}
return "", &errortypes.BadServerResponse{
Message: fmt.Sprintf("Failed to parse bid mediatype for impression \"%s\"", bid.ImpID),
}
}