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smartadserver.go
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smartadserver.go
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package smartadserver
import (
"encoding/json"
"fmt"
"net/http"
"net/url"
"path"
"strconv"
"github.com/mxmCherry/openrtb/v15/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"
)
type SmartAdserverAdapter struct {
host string
}
// Builder builds a new instance of the SmartAdserver adapter for the given bidder with the given config.
func Builder(bidderName openrtb_ext.BidderName, config config.Adapter) (adapters.Bidder, error) {
bidder := &SmartAdserverAdapter{
host: config.Endpoint,
}
return bidder, nil
}
// MakeRequests makes the HTTP requests which should be made to fetch bids.
func (a *SmartAdserverAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
if len(request.Imp) == 0 {
return nil, []error{&errortypes.BadInput{
Message: "No impression in the bid request",
}}
}
var adapterRequests []*adapters.RequestData
var errs []error
// We copy the original request.
smartRequest := *request
// We create or copy the Site object.
if smartRequest.Site == nil {
smartRequest.Site = &openrtb2.Site{}
} else {
site := *smartRequest.Site
smartRequest.Site = &site
}
// We create or copy the Publisher object.
if smartRequest.Site.Publisher == nil {
smartRequest.Site.Publisher = &openrtb2.Publisher{}
} else {
publisher := *smartRequest.Site.Publisher
smartRequest.Site.Publisher = &publisher
}
// We send one serialized "smartRequest" per impression of the original request.
for _, imp := range request.Imp {
var bidderExt adapters.ExtImpBidder
if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
errs = append(errs, &errortypes.BadInput{
Message: "Error parsing bidderExt object",
})
continue
}
var smartadserverExt openrtb_ext.ExtImpSmartadserver
if err := json.Unmarshal(bidderExt.Bidder, &smartadserverExt); err != nil {
errs = append(errs, &errortypes.BadInput{
Message: "Error parsing smartadserverExt parameters",
})
continue
}
// Adding publisher id.
smartRequest.Site.Publisher.ID = strconv.Itoa(smartadserverExt.NetworkID)
// We send one request for each impression.
smartRequest.Imp = []openrtb2.Imp{imp}
var errMarshal error
if imp.Ext, errMarshal = json.Marshal(smartadserverExt); errMarshal != nil {
errs = append(errs, &errortypes.BadInput{
Message: errMarshal.Error(),
})
continue
}
reqJSON, err := json.Marshal(smartRequest)
if err != nil {
errs = append(errs, &errortypes.BadInput{
Message: "Error parsing reqJSON object",
})
continue
}
url, err := a.BuildEndpointURL(&smartadserverExt)
if url == "" {
errs = append(errs, err)
continue
}
headers := http.Header{}
headers.Add("Content-Type", "application/json;charset=utf-8")
headers.Add("Accept", "application/json")
adapterRequests = append(adapterRequests, &adapters.RequestData{
Method: "POST",
Uri: url,
Body: reqJSON,
Headers: headers,
})
}
return adapterRequests, errs
}
// MakeBids unpacks the server's response into Bids.
func (a *SmartAdserverAdapter) 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: "Unexpected status code: " + strconv.Itoa(response.StatusCode) + ". Run with request.debug = 1 for more info",
}}
}
var bidResp openrtb2.BidResponse
if err := json.Unmarshal(response.Body, &bidResp); err != nil {
return nil, []error{err}
}
bidResponse := adapters.NewBidderResponseWithBidsCapacity(5)
for _, sb := range bidResp.SeatBid {
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, []error{}
}
// BuildEndpointURL : Builds endpoint url
func (a *SmartAdserverAdapter) BuildEndpointURL(params *openrtb_ext.ExtImpSmartadserver) (string, error) {
uri, err := url.Parse(a.host)
if err != nil || uri.Scheme == "" || uri.Host == "" {
return "", &errortypes.BadInput{
Message: "Malformed URL: " + a.host + ".",
}
}
uri.Path = path.Join(uri.Path, "api/bid")
uri.RawQuery = "callerId=5"
return uri.String(), nil
}
func getMediaTypeForImp(impID string, imps []openrtb2.Imp) openrtb_ext.BidType {
for _, imp := range imps {
if imp.ID == impID {
if imp.Video != nil {
return openrtb_ext.BidTypeVideo
}
return openrtb_ext.BidTypeBanner
}
}
return openrtb_ext.BidTypeBanner
}