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marsmedia.go
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marsmedia.go
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package marsmedia
import (
"encoding/json"
"fmt"
"net/http"
"strconv"
"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 MarsmediaAdapter struct {
URI string
}
func (a *MarsmediaAdapter) MakeRequests(requestIn *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
request := *requestIn
if len(request.Imp) == 0 {
return nil, []error{&errortypes.BadInput{
Message: "No impression in the bid request",
}}
}
var bidderExt adapters.ExtImpBidder
if err := json.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
return nil, []error{&errortypes.BadInput{
Message: "ext.bidder not provided",
}}
}
var marsmediaExt openrtb_ext.ExtImpMarsmedia
if err := json.Unmarshal(bidderExt.Bidder, &marsmediaExt); err != nil {
return nil, []error{&errortypes.BadInput{
Message: "ext.bidder.zoneId not provided",
}}
}
if marsmediaExt.ZoneID == "" {
return nil, []error{&errortypes.BadInput{
Message: "zoneId is empty",
}}
}
validImpExists := false
for i := 0; i < len(request.Imp); i++ {
if request.Imp[i].Banner != nil {
bannerCopy := *requestIn.Imp[i].Banner
if len(bannerCopy.Format) > 0 {
firstFormat := bannerCopy.Format[0]
bannerCopy.W = &(firstFormat.W)
bannerCopy.H = &(firstFormat.H)
request.Imp[i].Banner = &bannerCopy
validImpExists = true
} else if bannerCopy.W != nil && bannerCopy.H != nil {
validImpExists = true
} else {
return nil, []error{&errortypes.BadInput{
Message: "No valid banner format in the bid request",
}}
}
} else if request.Imp[i].Video != nil {
validImpExists = true
}
}
if !validImpExists {
return nil, []error{&errortypes.BadInput{
Message: "No valid impression in the bid request",
}}
}
request.AT = 1 //Defaulting to first price auction for all prebid requests
reqJSON, err := json.Marshal(request)
if err != nil {
return nil, []error{&errortypes.BadInput{
Message: fmt.Sprintf("Json not encoded. err: %s", err),
}}
}
uri := a.URI + "&zone=" + marsmediaExt.ZoneID.String()
headers := http.Header{}
headers.Add("Content-Type", "application/json;charset=utf-8")
headers.Add("Accept", "application/json")
headers.Add("x-openrtb-version", "2.5")
if request.Device != nil {
addHeaderIfNonEmpty(headers, "User-Agent", request.Device.UA)
addHeaderIfNonEmpty(headers, "X-Forwarded-For", request.Device.IP)
addHeaderIfNonEmpty(headers, "Accept-Language", request.Device.Language)
if request.Device.DNT != nil {
addHeaderIfNonEmpty(headers, "DNT", strconv.Itoa(int(*request.Device.DNT)))
}
}
return []*adapters.RequestData{{
Method: "POST",
Uri: uri,
Body: reqJSON,
Headers: headers,
}}, []error{}
}
func (a *MarsmediaAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest *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. ", response.StatusCode),
}}
}
if response.StatusCode != http.StatusOK {
return nil, []error{&errortypes.BadServerResponse{
Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode),
}}
}
var bidResp openrtb2.BidResponse
if err := json.Unmarshal(response.Body, &bidResp); err != nil {
return nil, []error{&errortypes.BadServerResponse{
Message: fmt.Sprintf("Bad server response: %d. ", err),
}}
}
bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(bidResp.SeatBid[0].Bid))
sb := bidResp.SeatBid[0]
for i := 0; i < len(sb.Bid); i++ {
bid := sb.Bid[i]
bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
Bid: &bid,
BidType: getMediaTypeForImp(bid.ImpID, internalRequest.Imp),
})
}
return bidResponse, nil
}
func addHeaderIfNonEmpty(headers http.Header, headerName string, headerValue string) {
if len(headerValue) > 0 {
headers.Add(headerName, headerValue)
}
}
// getMediaTypeForImp figures out which media type this bid is for.
func getMediaTypeForImp(impId string, imps []openrtb2.Imp) openrtb_ext.BidType {
mediaType := openrtb_ext.BidTypeBanner //default type
for _, imp := range imps {
if imp.ID == impId {
if imp.Video != nil {
mediaType = openrtb_ext.BidTypeVideo
}
return mediaType
}
}
return mediaType
}
// Builder builds a new instance of the Marsmedia 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 := &MarsmediaAdapter{
URI: config.Endpoint,
}
return bidder, nil
}