/
bidmachine.go
221 lines (195 loc) · 6.26 KB
/
bidmachine.go
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package bidmachine
import (
"encoding/json"
"fmt"
"net/http"
"net/url"
"path"
"strconv"
"text/template"
"github.com/mxmCherry/openrtb/v16/adcom1"
"github.com/mxmCherry/openrtb/v16/openrtb2"
"github.com/prebid/prebid-server/adapters"
"github.com/prebid/prebid-server/config"
"github.com/prebid/prebid-server/errortypes"
"github.com/prebid/prebid-server/macros"
"github.com/prebid/prebid-server/openrtb_ext"
)
type adapter struct {
endpoint *template.Template
}
func (a *adapter) MakeRequests(request *openrtb2.BidRequest, _ *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
headers := http.Header{}
headers.Add("Content-Type", "application/json")
headers.Add("Accept", "application/json")
headers.Add("X-Openrtb-Version", "2.5")
impressions := request.Imp
result := make([]*adapters.RequestData, 0, len(impressions))
errs := make([]error, 0, len(impressions))
for _, impression := range impressions {
if impression.Banner != nil {
banner := impression.Banner
if banner.W == nil && banner.H == nil {
if banner.Format == nil {
errs = append(errs, &errortypes.BadInput{
Message: "Impression with id: " + impression.ID + " has following error: Banner width and height is not provided and banner format is missing. At least one is required",
})
continue
}
if len(banner.Format) == 0 {
errs = append(errs, &errortypes.BadInput{
Message: "Impression with id: " + impression.ID + " has following error: Banner width and height is not provided and banner format array is empty. At least one is required",
})
continue
}
}
}
var bidderExt adapters.ExtImpBidder
err := json.Unmarshal(impression.Ext, &bidderExt)
if err != nil {
errs = append(errs, err)
continue
}
var impressionExt openrtb_ext.ExtImpBidmachine
err = json.Unmarshal(bidderExt.Bidder, &impressionExt)
if err != nil {
errs = append(errs, err)
continue
}
url, err := a.buildEndpointURL(impressionExt)
if err != nil {
errs = append(errs, err)
continue
}
if bidderExt.Prebid != nil && bidderExt.Prebid.IsRewardedInventory == 1 {
if impression.Banner != nil && !hasRewardedBattr(impression.Banner.BAttr) {
bannerCopy := *impression.Banner
bannerCopy.BAttr = copyBAttrWithRewardedInventory(bannerCopy.BAttr)
impression.Banner = &bannerCopy
}
if impression.Video != nil && !hasRewardedBattr(impression.Video.BAttr) {
videoCopy := *impression.Video
videoCopy.BAttr = copyBAttrWithRewardedInventory(videoCopy.BAttr)
impression.Video = &videoCopy
}
}
request.Imp = []openrtb2.Imp{impression}
body, err := json.Marshal(request)
if err != nil {
errs = append(errs, err)
continue
}
result = append(result, &adapters.RequestData{
Method: "POST",
Uri: url,
Body: body,
Headers: headers,
})
}
request.Imp = impressions
return result, errs
}
func hasRewardedBattr(attr []adcom1.CreativeAttribute) bool {
for i := 0; i < len(attr); i++ {
if attr[i] == adcom1.AttrHasSkipButton {
return true
}
}
return false
}
func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
var errs []error
switch responseData.StatusCode {
case http.StatusNoContent:
return nil, nil
case http.StatusServiceUnavailable:
fallthrough
case http.StatusBadRequest:
fallthrough
case http.StatusUnauthorized:
fallthrough
case http.StatusForbidden:
return nil, []error{&errortypes.BadInput{
Message: "unexpected status code: " + strconv.Itoa(responseData.StatusCode) + " " + string(responseData.Body),
}}
case http.StatusOK:
break
default:
return nil, []error{&errortypes.BadServerResponse{
Message: "unexpected status code: " + strconv.Itoa(responseData.StatusCode) + " " + string(responseData.Body),
}}
}
var bidResponse openrtb2.BidResponse
err := json.Unmarshal(responseData.Body, &bidResponse)
if err != nil {
return nil, []error{&errortypes.BadServerResponse{
Message: err.Error(),
}}
}
response := adapters.NewBidderResponseWithBidsCapacity(len(request.Imp))
for _, seatBid := range bidResponse.SeatBid {
for _, bid := range seatBid.Bid {
thisBid := bid
bidType := GetMediaTypeForImp(bid.ImpID, request.Imp)
if bidType == UndefinedMediaType {
errs = append(errs, &errortypes.BadServerResponse{
Message: "ignoring bid id=" + bid.ID + ", request doesn't contain any valid impression with id=" + bid.ImpID,
})
continue
}
response.Bids = append(response.Bids, &adapters.TypedBid{
Bid: &thisBid,
BidType: bidType,
})
}
}
return response, errs
}
// Builder builds a new instance of the Bidmachine adapter for the given bidder with the given config.
func Builder(bidderName openrtb_ext.BidderName, config config.Adapter) (adapters.Bidder, error) {
template, err := template.New("endpointTemplate").Parse(config.Endpoint)
if err != nil {
return nil, fmt.Errorf("unable to parse endpoint url template: %v", err)
}
bidder := &adapter{
endpoint: template,
}
return bidder, nil
}
const UndefinedMediaType = openrtb_ext.BidType("")
func (a *adapter) buildEndpointURL(params openrtb_ext.ExtImpBidmachine) (string, error) {
endpointParams := macros.EndpointTemplateParams{Host: params.Host}
uriString, errMacros := macros.ResolveMacros(a.endpoint, endpointParams)
if errMacros != nil {
return "", &errortypes.BadInput{
Message: "Failed to resolve host macros",
}
}
uri, errUrl := url.Parse(uriString)
if errUrl != nil || uri.Scheme == "" || uri.Host == "" {
return "", &errortypes.BadInput{
Message: "Failed to create final URL with provided host",
}
}
uri.Path = path.Join(uri.Path, params.Path)
uri.Path = path.Join(uri.Path, params.SellerID)
return uri.String(), nil
}
func copyBAttrWithRewardedInventory(src []adcom1.CreativeAttribute) []adcom1.CreativeAttribute {
dst := make([]adcom1.CreativeAttribute, len(src))
copy(dst, src)
dst = append(dst, adcom1.AttrHasSkipButton)
return dst
}
func GetMediaTypeForImp(impID string, imps []openrtb2.Imp) openrtb_ext.BidType {
mediaType := openrtb_ext.BidTypeBanner
for _, imp := range imps {
if imp.ID == impID {
if imp.Banner == nil && imp.Video != nil {
mediaType = openrtb_ext.BidTypeVideo
}
return mediaType
}
}
return UndefinedMediaType
}