/
tappx.go
226 lines (186 loc) · 5.69 KB
/
tappx.go
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package tappx
import (
"encoding/json"
"fmt"
"net/http"
"net/url"
"regexp"
"strconv"
"text/template"
"time"
"github.com/prebid/openrtb/v17/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"
)
const TAPPX_BIDDER_VERSION = "1.5"
const TYPE_CNN = "prebid"
type TappxAdapter struct {
endpointTemplate *template.Template
}
type Bidder struct {
Tappxkey string `json:"tappxkey"`
Mktag string `json:"mktag,omitempty"`
Bcid []string `json:"bcid,omitempty"`
Bcrid []string `json:"bcrid,omitempty"`
}
type Ext struct {
Bidder `json:"bidder"`
}
// Builder builds a new instance of the Tappx adapter for the given bidder with the given config.
func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (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 := &TappxAdapter{
endpointTemplate: template,
}
return bidder, nil
}
func (a *TappxAdapter) 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 bidderExt adapters.ExtImpBidder
if err := json.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
return nil, []error{&errortypes.BadInput{
Message: "Error parsing bidderExt object",
}}
}
var tappxExt openrtb_ext.ExtImpTappx
if err := json.Unmarshal(bidderExt.Bidder, &tappxExt); err != nil {
return nil, []error{&errortypes.BadInput{
Message: "Error parsing tappxExt parameters",
}}
}
ext := Ext{
Bidder: Bidder{
Tappxkey: tappxExt.TappxKey,
Mktag: tappxExt.Mktag,
Bcid: tappxExt.Bcid,
Bcrid: tappxExt.Bcrid,
},
}
if jsonext, err := json.Marshal(ext); err == nil {
request.Ext = jsonext
} else {
return nil, []error{&errortypes.FailedToRequestBids{
Message: "Error marshaling tappxExt parameters",
}}
}
var test int
test = int(request.Test)
url, err := a.buildEndpointURL(&tappxExt, test)
if url == "" {
return nil, []error{err}
}
if tappxExt.BidFloor > 0 {
request.Imp[0].BidFloor = tappxExt.BidFloor
}
reqJSON, err := json.Marshal(request)
if err != nil {
return nil, []error{&errortypes.BadInput{
Message: "Error parsing reqJSON object",
}}
}
headers := http.Header{}
headers.Add("Content-Type", "application/json;charset=utf-8")
headers.Add("Accept", "application/json")
return []*adapters.RequestData{{
Method: "POST",
Uri: url,
Body: reqJSON,
Headers: headers,
}}, []error{}
}
// Builds enpoint url based on adapter-specific pub settings from imp.ext
func (a *TappxAdapter) buildEndpointURL(params *openrtb_ext.ExtImpTappx, test int) (string, error) {
if params.Endpoint == "" {
return "", &errortypes.BadInput{
Message: "Tappx endpoint undefined",
}
}
if params.TappxKey == "" {
return "", &errortypes.BadInput{
Message: "Tappx key undefined",
}
}
tappxHost := "tappx.com"
isNewEndpoint, err := regexp.Match(`^(zz|vz)[0-9]{3,}([a-z]{2,3}|test)$`, []byte(params.Endpoint))
if isNewEndpoint {
tappxHost = params.Endpoint + ".pub." + tappxHost + "/rtb/"
} else {
tappxHost = "ssp.api." + tappxHost + "/rtb/v2/"
}
endpointParams := macros.EndpointTemplateParams{Host: tappxHost}
host, err := macros.ResolveMacros(a.endpointTemplate, endpointParams)
if err != nil {
return "", &errortypes.BadInput{
Message: "Unable to parse endpoint url template: " + err.Error(),
}
}
thisURI, err := url.Parse(host)
if err != nil {
return "", &errortypes.BadInput{
Message: "Malformed URL: " + err.Error(),
}
}
if !isNewEndpoint {
thisURI.Path += params.Endpoint
}
queryParams := url.Values{}
queryParams.Add("tappxkey", params.TappxKey)
if test == 0 {
t := time.Now().UnixNano() / (int64(time.Millisecond) / int64(time.Nanosecond))
queryParams.Add("ts", strconv.Itoa(int(t)))
}
queryParams.Add("v", TAPPX_BIDDER_VERSION)
queryParams.Add("type_cnn", TYPE_CNN)
thisURI.RawQuery = queryParams.Encode()
return thisURI.String(), nil
}
func (a *TappxAdapter) 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{fmt.Errorf("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{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{}
}
func getMediaTypeForImp(impId string, imps []openrtb2.Imp) openrtb_ext.BidType {
mediaType := openrtb_ext.BidTypeBanner
for _, imp := range imps {
if imp.ID == impId {
if imp.Video != nil {
mediaType = openrtb_ext.BidTypeVideo
}
return mediaType
}
}
return mediaType
}