Adnuntius Bid Adapter, Pass DSA back if it's needed by the requesting…

… adserver.

adapters/adnuntius/adnuntius.go

@@ -36,6 +36,10 @@ type extDeviceAdnuntius struct {
 type siteExt struct {
 	Data interface{} `json:"data"`
 }
+type adnAdvertiser struct {
+	LegalName string `json:"legalName,omitempty"`
+	Name      string `json:"name,omitempty"`
+}
 
 type Ad struct {
 	Bid struct {
@@ -56,6 +60,7 @@ type Ad struct {
 	LineItemId      string
 	Html            string
 	DestinationUrls map[string]string
+	Advertiser      adnAdvertiser
 }
 
 type AdUnit struct {
@@ -369,6 +374,38 @@ func getGDPR(request *openrtb2.BidRequest) (string, string, error) {
 	return gdpr, consent, nil
 }
 
+func generateReturnExt(ad Ad, request *openrtb2.BidRequest) (json.RawMessage, error) {
+	// We always force the publisher to render
+	var adRender int8 = 0
+
+	var requestRegsExt *openrtb_ext.ExtRegs
+	if request.Regs != nil && request.Regs.Ext != nil {
+		if err := json.Unmarshal(request.Regs.Ext, &requestRegsExt); err != nil {
+
+			return nil, fmt.Errorf("Failed to parse Ext information in Adnuntius: %v", err)
+		}
+	}
+
+	if requestRegsExt != nil && requestRegsExt.DSA != nil && requestRegsExt.DSA.PubRender != &adRender {
+		ext := &openrtb_ext.ExtBid{
+			DSA: &openrtb_ext.ExtBidDSA{
+				AdRender: &adRender,
+				Paid:     ad.Advertiser.LegalName,
+				Behalf:   ad.Advertiser.LegalName,
+			},
+		}
+		returnExt, err := json.Marshal(ext)
+		if err != nil {
+			return nil, fmt.Errorf("Failed to parse Ext information in Adnuntius: %v", err)
+		}
+
+		return returnExt, nil
+	} else {
+		return nil, nil
+	}
+
+}
+
 func generateAdResponse(ad Ad, imp openrtb2.Imp, html string, request *openrtb2.BidRequest) (*openrtb2.Bid, []error) {
 
 	creativeWidth, widthErr := strconv.ParseInt(ad.CreativeWidth, 10, 64)
@@ -410,6 +447,13 @@ func generateAdResponse(ad Ad, imp openrtb2.Imp, html string, request *openrtb2.
 		}
 	}
 
+	extJson, err := generateReturnExt(ad, request)
+	if err != nil {
+		return nil, []error{&errortypes.BadInput{
+			Message: fmt.Sprintf("Error extracting Ext: %s", err.Error()),
+		}}
+	}
+
 	adDomain := []string{}
 	for _, url := range ad.DestinationUrls {
 		domainArray := strings.Split(url, "/")
@@ -429,6 +473,7 @@ func generateAdResponse(ad Ad, imp openrtb2.Imp, html string, request *openrtb2.
 		Price:   price * 1000,
 		AdM:     html,
 		ADomain: adDomain,
+		Ext:     extJson,
 	}
 	return &bid, nil
 

adapters/adnuntius/adnuntiustest/supplemental/check-dsa.json

@@ -0,0 +1,153 @@
+{
+	"imp": [
+		{
+			"ext": {
+				"data": {
+
+				},
+				"prebid": {
+					"bidder": {
+						"adnuntius": {
+							"auId": "000000000021aca6"
+						}
+					},
+					"adunitcode": "/19660636/adn_rect_01"
+				}
+			},
+			"id": "/19660636/adn_rect_01",
+			"banner": {
+				"topframe": 1,
+				"format": [
+					{
+						"w": 300,
+						"h": 250
+					}
+				]
+			}
+		}
+	],
+	"user": {
+		"data": [
+			{
+				"name": "adnuntius",
+				"segment": [
+					{
+						"id": "outerSegment123"
+					},
+					{
+						"id": "moooore!"
+					}
+				]
+			}
+		],
+		"ext": {
+			"eids": [
+				{
+					"source": "SCHNO-EnvHash",
+					"uids": [
+						{
+							"id": "eyJraWQiOiIyIiwiYWxnIjoiSFMyNTYifQ--EwULowzgAb-9XhVnWLSB8eun29QCbpuMK0rf9S5kJyw",
+							"atype": 1,
+							"ext": {
+								"stype": "ppuid"
+							}
+						}
+					]
+				}
+			]
+		}
+	},
+	"regs": {
+		"ext": {
+			"dsa": {
+				"dsarequired": 3,
+				"pubrender": 0,
+				"datatopub": 2,
+				"transparency": [
+					{
+						"domain": "platform1domain.com",
+						"dsaparams": [
+							1
+						]
+					},
+					{
+						"domain": "SSP2domain.com",
+						"dsaparams": [
+							1,
+							2
+						]
+					}
+				]
+			}
+		}
+	},
+	"site": {
+		"domain": "adnun.net",
+		"publisher": {
+			"domain": "adnun.net",
+			"id": "1"
+		},
+		"page": "https://adnun.net/prebid/server/?pbjs_debug=true",
+		"ext": {
+			"data": {
+				"no-sch-geo": [
+					"glcountry_no",
+					"glwe_shower_in_vicinity"
+				]
+			}
+		}
+	},
+	"device": {
+		"w": 567,
+		"h": 1328,
+		"dnt": 0,
+		"ua": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36",
+		"language": "en",
+		"sua": {
+			"source": 1,
+			"platform": {
+				"brand": "macOS"
+			},
+			"browsers": [
+				{
+					"brand": "Not/A)Brand",
+					"version": [
+						"8"
+					]
+				},
+				{
+					"brand": "Chromium",
+					"version": [
+						"126"
+					]
+				},
+				{
+					"brand": "Google Chrome",
+					"version": [
+						"126"
+					]
+				}
+			],
+			"mobile": 0
+		}
+	},
+	"id": "5bda7aea-2d3b-4927-88ed-b835144e2b6e",
+	"test": 0,
+	"ext": {
+		"prebid": {
+			"auctiontimestamp": 1719324329757,
+			"targeting": {
+				"includewinners": true,
+				"includebidderkeys": false
+			},
+			"debug": true,
+			"channel": {
+				"name": "pbjs",
+				"version": "v9.2.0"
+			},
+			"createtids": false
+		},
+		"tmaxmax": 1000
+	},
+	"tmax": 500
+}