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operaads.go
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operaads.go
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package operaads
import (
"encoding/json"
"errors"
"fmt"
"net/http"
"strings"
"text/template"
"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"
"github.com/mxmCherry/openrtb/v15/openrtb2"
)
type adapter struct {
epTemplate *template.Template
}
var (
errBannerFormatMiss = errors.New("Size information missing for banner")
errDeviceOrOSMiss = errors.New("Impression is missing device OS information")
)
// Builder builds a new instance of the operaads adapter for the given bidder with the given config.
func Builder(bidderName openrtb_ext.BidderName, config config.Adapter) (adapters.Bidder, error) {
epTemplate, err := template.New("endpoint").Parse(config.Endpoint)
if err != nil {
return nil, err
}
bidder := &adapter{
epTemplate: epTemplate,
}
return bidder, nil
}
func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
impCount := len(request.Imp)
requestData := make([]*adapters.RequestData, 0, impCount)
errs := []error{}
headers := http.Header{}
headers.Add("Content-Type", "application/json;charset=utf-8")
headers.Add("Accept", "application/json")
err := checkRequest(request)
if err != nil {
errs = append(errs, &errortypes.BadInput{
Message: err.Error(),
})
return nil, errs
}
for _, imp := range request.Imp {
var bidderExt adapters.ExtImpBidder
if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
errs = append(errs, &errortypes.BadInput{
Message: err.Error(),
})
continue
}
var operaadsExt openrtb_ext.ImpExtOperaads
if err := json.Unmarshal(bidderExt.Bidder, &operaadsExt); err != nil {
errs = append(errs, &errortypes.BadInput{
Message: err.Error(),
})
continue
}
macro := macros.EndpointTemplateParams{PublisherID: operaadsExt.PublisherID, AccountID: operaadsExt.EndpointID}
endpoint, err := macros.ResolveMacros(a.epTemplate, ¯o)
if err != nil {
errs = append(errs, &errortypes.BadInput{
Message: err.Error(),
})
continue
}
imp.TagID = operaadsExt.PlacementID
formats := make([]interface{}, 0, 1)
if imp.Native != nil {
formats = append(formats, imp.Native)
}
if imp.Video != nil {
formats = append(formats, imp.Video)
}
if imp.Banner != nil {
formats = append(formats, imp.Banner)
}
for _, format := range formats {
req, err := flatImp(*request, imp, headers, endpoint, format)
if err != nil {
errs = append(errs, &errortypes.BadInput{
Message: err.Error(),
})
continue
}
if req != nil {
requestData = append(requestData, req)
}
}
}
return requestData, errs
}
func flatImp(requestCopy openrtb2.BidRequest, impCopy openrtb2.Imp, headers http.Header, endpoint string, format interface{}) (*adapters.RequestData, error) {
switch format.(type) {
case *openrtb2.Video:
impCopy.Native = nil
impCopy.Banner = nil
impCopy.ID = buildOperaImpId(impCopy.ID, openrtb_ext.BidTypeVideo)
case *openrtb2.Banner:
impCopy.Video = nil
impCopy.Native = nil
impCopy.ID = buildOperaImpId(impCopy.ID, openrtb_ext.BidTypeBanner)
case *openrtb2.Native:
impCopy.Video = nil
impCopy.Banner = nil
impCopy.ID = buildOperaImpId(impCopy.ID, openrtb_ext.BidTypeNative)
default: // do not need flat
return nil, nil
}
err := convertImpression(&impCopy)
if err != nil {
return nil, err
}
requestCopy.Imp = []openrtb2.Imp{impCopy}
reqJSON, err := json.Marshal(&requestCopy)
if err != nil {
return nil, err
}
return &adapters.RequestData{
Method: http.MethodPost,
Uri: endpoint,
Body: reqJSON,
Headers: headers,
}, nil
}
func checkRequest(request *openrtb2.BidRequest) error {
if request.Device == nil || len(request.Device.OS) == 0 {
return errDeviceOrOSMiss
}
return nil
}
func convertImpression(imp *openrtb2.Imp) error {
if imp.Banner != nil {
bannerCopy, err := convertBanner(imp.Banner)
if err != nil {
return err
}
imp.Banner = bannerCopy
}
if imp.Native != nil && imp.Native.Request != "" {
v := make(map[string]interface{})
err := json.Unmarshal([]byte(imp.Native.Request), &v)
if err != nil {
return err
}
_, ok := v["native"]
if !ok {
body, err := json.Marshal(struct {
Native interface{} `json:"native"`
}{
Native: v,
})
if err != nil {
return err
}
native := *imp.Native
native.Request = string(body)
imp.Native = &native
}
}
return nil
}
// make sure that banner has openrtb 2.3-compatible size information
func convertBanner(banner *openrtb2.Banner) (*openrtb2.Banner, error) {
if banner.W == nil || banner.H == nil || *banner.W == 0 || *banner.H == 0 {
if len(banner.Format) > 0 {
f := banner.Format[0]
bannerCopy := *banner
bannerCopy.W = openrtb2.Int64Ptr(f.W)
bannerCopy.H = openrtb2.Int64Ptr(f.H)
return &bannerCopy, nil
} else {
return nil, errBannerFormatMiss
}
}
return banner, nil
}
func (a *adapter) 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. Run with request.debug = 1 for more info", 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 parsedResponse openrtb2.BidResponse
if err := json.Unmarshal(response.Body, &parsedResponse); err != nil {
return nil, []error{&errortypes.BadServerResponse{
Message: err.Error(),
}}
}
bidResponse := adapters.NewBidderResponseWithBidsCapacity(1)
for _, sb := range parsedResponse.SeatBid {
for i := 0; i < len(sb.Bid); i++ {
bid := sb.Bid[i]
if bid.Price != 0 {
var bidType openrtb_ext.BidType
bid.ImpID, bidType = parseOriginImpId(bid.ImpID)
bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
Bid: &bid,
BidType: bidType,
})
}
}
}
return bidResponse, nil
}
func buildOperaImpId(originId string, bidType openrtb_ext.BidType) string {
return strings.Join([]string{originId, "opa", string(bidType)}, ":")
}
func parseOriginImpId(impId string) (originId string, bidType openrtb_ext.BidType) {
items := strings.Split(impId, ":")
if len(items) < 2 {
return impId, ""
}
return strings.Join(items[:len(items)-2], ":"), openrtb_ext.BidType(items[len(items)-1])
}