Update conversant adapter for new prebid-server interface (#1484)

adapters/conversant/cnvr_legacy.go

@@ -0,0 +1,291 @@
+package conversant
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+
+	"github.com/mxmCherry/openrtb"
+	"github.com/prebid/prebid-server/adapters"
+	"github.com/prebid/prebid-server/errortypes"
+	"github.com/prebid/prebid-server/pbs"
+	"golang.org/x/net/context/ctxhttp"
+)
+
+type ConversantLegacyAdapter struct {
+	http *adapters.HTTPAdapter
+	URI  string
+}
+
+// Corresponds to the bidder name in cookies and requests
+func (a *ConversantLegacyAdapter) Name() string {
+	return "conversant"
+}
+
+// Return true so no request will be sent unless user has been sync'ed.
+func (a *ConversantLegacyAdapter) SkipNoCookies() bool {
+	return true
+}
+
+type conversantParams struct {
+	SiteID      string   `json:"site_id"`
+	Secure      *int8    `json:"secure"`
+	TagID       string   `json:"tag_id"`
+	Position    *int8    `json:"position"`
+	BidFloor    float64  `json:"bidfloor"`
+	Mobile      *int8    `json:"mobile"`
+	MIMEs       []string `json:"mimes"`
+	API         []int8   `json:"api"`
+	Protocols   []int8   `json:"protocols"`
+	MaxDuration *int64   `json:"maxduration"`
+}
+
+func (a *ConversantLegacyAdapter) Call(ctx context.Context, req *pbs.PBSRequest, bidder *pbs.PBSBidder) (pbs.PBSBidSlice, error) {
+	mediaTypes := []pbs.MediaType{pbs.MEDIA_TYPE_BANNER, pbs.MEDIA_TYPE_VIDEO}
+	cnvrReq, err := adapters.MakeOpenRTBGeneric(req, bidder, a.Name(), mediaTypes)
+
+	if err != nil {
+		return nil, err
+	}
+
+	// Create a map of impression objects for both request creation
+	// and response parsing.
+
+	impMap := make(map[string]*openrtb.Imp, len(cnvrReq.Imp))
+	for idx := range cnvrReq.Imp {
+		impMap[cnvrReq.Imp[idx].ID] = &cnvrReq.Imp[idx]
+	}
+
+	// Fill in additional info from custom params
+
+	for _, unit := range bidder.AdUnits {
+		var params conversantParams
+
+		imp := impMap[unit.Code]
+		if imp == nil {
+			// Skip ad units that do not have corresponding impressions.
+			continue
+		}
+
+		err := json.Unmarshal(unit.Params, &params)
+		if err != nil {
+			return nil, &errortypes.BadInput{
+				Message: err.Error(),
+			}
+		}
+
+		// Fill in additional Site info
+		if params.SiteID != "" {
+			if cnvrReq.Site != nil {
+				cnvrReq.Site.ID = params.SiteID
+			}
+			if cnvrReq.App != nil {
+				cnvrReq.App.ID = params.SiteID
+			}
+		}
+
+		if params.Mobile != nil && !(cnvrReq.Site == nil) {
+			cnvrReq.Site.Mobile = *params.Mobile
+		}
+
+		// Fill in additional impression info
+
+		imp.DisplayManager = "prebid-s2s"
+		imp.DisplayManagerVer = "1.0.1"
+		imp.BidFloor = params.BidFloor
+		imp.TagID = params.TagID
+
+		var position *openrtb.AdPosition
+		if params.Position != nil {
+			position = openrtb.AdPosition(*params.Position).Ptr()
+		}
+
+		if imp.Banner != nil {
+			imp.Banner.Pos = position
+		} else if imp.Video != nil {
+			imp.Video.Pos = position
+
+			if len(params.API) > 0 {
+				imp.Video.API = make([]openrtb.APIFramework, 0, len(params.API))
+				for _, api := range params.API {
+					imp.Video.API = append(imp.Video.API, openrtb.APIFramework(api))
+				}
+			}
+
+			// Include protocols, mimes, and max duration if specified
+			// These properties can also be specified in ad unit's video object,
+			// but are overridden if the custom params object also contains them.
+
+			if len(params.Protocols) > 0 {
+				imp.Video.Protocols = make([]openrtb.Protocol, 0, len(params.Protocols))
+				for _, protocol := range params.Protocols {
+					imp.Video.Protocols = append(imp.Video.Protocols, openrtb.Protocol(protocol))
+				}
+			}
+
+			if len(params.MIMEs) > 0 {
+				imp.Video.MIMEs = make([]string, len(params.MIMEs))
+				copy(imp.Video.MIMEs, params.MIMEs)
+			}
+
+			if params.MaxDuration != nil {
+				imp.Video.MaxDuration = *params.MaxDuration
+			}
+		}
+
+		// Take care not to override the global secure flag
+
+		if (imp.Secure == nil || *imp.Secure == 0) && params.Secure != nil {
+			imp.Secure = params.Secure
+		}
+	}
+
+	// Do a quick check on required parameters
+
+	if cnvrReq.Site != nil && cnvrReq.Site.ID == "" {
+		return nil, &errortypes.BadInput{
+			Message: "Missing site id",
+		}
+	}
+
+	if cnvrReq.App != nil && cnvrReq.App.ID == "" {
+		return nil, &errortypes.BadInput{
+			Message: "Missing app id",
+		}
+	}
+
+	// Start capturing debug info
+
+	debug := &pbs.BidderDebug{
+		RequestURI: a.URI,
+	}
+
+	if cnvrReq.Device == nil {
+		cnvrReq.Device = &openrtb.Device{}
+	}
+
+	// Convert request to json to be sent over http
+
+	j, _ := json.Marshal(cnvrReq)
+
+	if req.IsDebug {
+		debug.RequestBody = string(j)
+		bidder.Debug = append(bidder.Debug, debug)
+	}
+
+	httpReq, err := http.NewRequest("POST", a.URI, bytes.NewBuffer(j))
+	httpReq.Header.Add("Content-Type", "application/json")
+	httpReq.Header.Add("Accept", "application/json")
+
+	resp, err := ctxhttp.Do(ctx, a.http.Client, httpReq)
+	if err != nil {
+		return nil, err
+	}
+
+	defer resp.Body.Close()
+
+	if req.IsDebug {
+		debug.StatusCode = resp.StatusCode
+	}
+
+	if resp.StatusCode == 204 {
+		return nil, nil
+	}
+
+	body, err := ioutil.ReadAll(resp.Body)
+
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode == http.StatusBadRequest {
+		return nil, &errortypes.BadInput{
+			Message: fmt.Sprintf("HTTP status: %d, body: %s", resp.StatusCode, string(body)),
+		}
+	}
+
+	if resp.StatusCode != 200 {
+		return nil, &errortypes.BadServerResponse{
+			Message: fmt.Sprintf("HTTP status: %d, body: %s", resp.StatusCode, string(body)),
+		}
+	}
+
+	if req.IsDebug {
+		debug.ResponseBody = string(body)
+	}
+
+	var bidResp openrtb.BidResponse
+
+	err = json.Unmarshal(body, &bidResp)
+	if err != nil {
+		return nil, &errortypes.BadServerResponse{
+			Message: err.Error(),
+		}
+	}
+
+	bids := make(pbs.PBSBidSlice, 0)
+
+	for _, seatbid := range bidResp.SeatBid {
+		for _, bid := range seatbid.Bid {
+			if bid.Price <= 0 {
+				continue
+			}
+
+			imp := impMap[bid.ImpID]
+			if imp == nil {
+				// All returned bids should have a matching impression
+				return nil, &errortypes.BadServerResponse{
+					Message: fmt.Sprintf("Unknown impression id '%s'", bid.ImpID),
+				}
+			}
+
+			bidID := bidder.LookupBidID(bid.ImpID)
+			if bidID == "" {
+				return nil, &errortypes.BadServerResponse{
+					Message: fmt.Sprintf("Unknown ad unit code '%s'", bid.ImpID),
+				}
+			}
+
+			pbsBid := pbs.PBSBid{
+				BidID:       bidID,
+				AdUnitCode:  bid.ImpID,
+				Price:       bid.Price,
+				Creative_id: bid.CrID,
+				BidderCode:  bidder.BidderCode,
+			}
+
+			if imp.Video != nil {
+				pbsBid.CreativeMediaType = "video"
+				pbsBid.NURL = bid.AdM // Assign to NURL so it'll be interpreted as a vastUrl
+				pbsBid.Width = imp.Video.W
+				pbsBid.Height = imp.Video.H
+			} else {
+				pbsBid.CreativeMediaType = "banner"
+				pbsBid.NURL = bid.NURL
+				pbsBid.Adm = bid.AdM
+				pbsBid.Width = bid.W
+				pbsBid.Height = bid.H
+			}
+
+			bids = append(bids, &pbsBid)
+		}
+	}
+
+	if len(bids) == 0 {
+		return nil, nil
+	}
+
+	return bids, nil
+}
+
+func NewConversantAdapter(config *adapters.HTTPAdapterConfig, uri string) *ConversantLegacyAdapter {
+	a := adapters.NewHTTPAdapter(config)
+
+	return &ConversantLegacyAdapter{
+		http: a,
+		URI:  uri,
+	}
+}