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connectad.go
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connectad.go
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package connectad
import (
"encoding/json"
"fmt"
"net/http"
"net/url"
"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 ConnectAdAdapter struct {
endpoint string
}
// Builder builds a new instance of the ConnectAd 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 := &ConnectAdAdapter{
endpoint: config.Endpoint,
}
return bidder, nil
}
func (a *ConnectAdAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
var errs []error
if errs := preprocess(request); len(errs) > 0 {
return nil, append(errs, &errortypes.BadInput{
Message: "Error in preprocess of Imp",
})
}
data, err := json.Marshal(request)
if err != nil {
return nil, []error{&errortypes.BadInput{
Message: "Error in packaging request to JSON",
}}
}
headers := http.Header{}
headers.Add("Content-Type", "application/json;charset=utf-8")
headers.Add("Accept", "application/json")
if request.Device != nil {
addHeaderIfNonEmpty(headers, "User-Agent", request.Device.UA)
addHeaderIfNonEmpty(headers, "Accept-Language", request.Device.Language)
if request.Device.IP != "" {
addHeaderIfNonEmpty(headers, "X-Forwarded-For", request.Device.IP)
} else if request.Device.IPv6 != "" {
addHeaderIfNonEmpty(headers, "X-Forwarded-For", request.Device.IPv6)
}
if request.Device.DNT != nil {
addHeaderIfNonEmpty(headers, "DNT", strconv.Itoa(int(*request.Device.DNT)))
} else {
addHeaderIfNonEmpty(headers, "DNT", "0")
}
}
return []*adapters.RequestData{{
Method: "POST",
Uri: a.endpoint,
Body: data,
Headers: headers,
ImpIDs: openrtb_ext.GetImpIDs(request.Imp),
}}, errs
}
func (a *ConnectAdAdapter) MakeBids(bidReq *openrtb2.BidRequest, unused *adapters.RequestData, httpRes *adapters.ResponseData) (*adapters.BidderResponse, []error) {
if httpRes.StatusCode == http.StatusNoContent {
return nil, nil
}
if httpRes.StatusCode != http.StatusOK {
return nil, []error{&errortypes.BadServerResponse{
Message: fmt.Sprintf("Invalid Status Returned: %d. Run with request.debug = 1 for more info", httpRes.StatusCode),
}}
}
var bidResp openrtb2.BidResponse
if err := json.Unmarshal(httpRes.Body, &bidResp); err != nil {
return nil, []error{&errortypes.BadServerResponse{
Message: fmt.Sprintf("Unable to unpackage bid response. Error: %s", err.Error()),
}}
}
bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(bidResp.SeatBid))
for _, sb := range bidResp.SeatBid {
for i := range sb.Bid {
bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
Bid: &sb.Bid[i],
BidType: "banner",
})
}
}
return bidResponse, nil
}
func preprocess(request *openrtb2.BidRequest) []error {
impsCount := len(request.Imp)
errors := make([]error, 0, impsCount)
resImps := make([]openrtb2.Imp, 0, impsCount)
secure := int8(0)
if request.Site != nil && request.Site.Page != "" {
pageURL, err := url.Parse(request.Site.Page)
if err == nil && pageURL.Scheme == "https" {
secure = int8(1)
}
}
for _, imp := range request.Imp {
cadExt, err := unpackImpExt(&imp)
if err != nil {
errors = append(errors, err)
continue
}
addImpInfo(&imp, &secure, cadExt)
if err := buildImpBanner(&imp); err != nil {
errors = append(errors, err)
continue
}
resImps = append(resImps, imp)
}
request.Imp = resImps
return errors
}
func addImpInfo(imp *openrtb2.Imp, secure *int8, cadExt *openrtb_ext.ExtImpConnectAd) {
imp.TagID = strconv.Itoa(cadExt.SiteID)
imp.Secure = secure
if cadExt.Bidfloor != 0 {
imp.BidFloor = cadExt.Bidfloor
imp.BidFloorCur = "USD"
}
}
func addHeaderIfNonEmpty(headers http.Header, headerName string, headerValue string) {
if len(headerValue) > 0 {
headers.Add(headerName, headerValue)
}
}
func unpackImpExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpConnectAd, error) {
var bidderExt adapters.ExtImpBidder
if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
return nil, &errortypes.BadInput{
Message: fmt.Sprintf("Impression id=%s has an Error: %s", imp.ID, err.Error()),
}
}
var cadExt openrtb_ext.ExtImpConnectAd
if err := json.Unmarshal(bidderExt.Bidder, &cadExt); err != nil {
return nil, &errortypes.BadInput{
Message: fmt.Sprintf("Impression id=%s, has invalid Ext", imp.ID),
}
}
if cadExt.SiteID == 0 {
return nil, &errortypes.BadInput{
Message: fmt.Sprintf("Impression id=%s, has no siteId present", imp.ID),
}
}
return &cadExt, nil
}
func buildImpBanner(imp *openrtb2.Imp) error {
imp.Ext = nil
if imp.Banner == nil {
return &errortypes.BadInput{
Message: "We need a Banner Object in the request",
}
}
if imp.Banner.W == nil && imp.Banner.H == nil {
bannerCopy := *imp.Banner
banner := &bannerCopy
if len(banner.Format) == 0 {
return &errortypes.BadInput{
Message: "At least one size is required",
}
}
format := banner.Format[0]
banner.Format = banner.Format[1:]
banner.W = &format.W
banner.H = &format.H
imp.Banner = banner
}
return nil
}