Add support for native ad units in OpenWrap module

modules/pubmatic/openwrap/adunitconfig/native.go

@@ -0,0 +1,56 @@
+package adunitconfig
+
+import (
+	"runtime/debug"
+
+	"github.com/golang/glog"
+	"github.com/prebid/openrtb/v20/openrtb2"
+	"github.com/prebid/prebid-server/v3/modules/pubmatic/openwrap/models"
+	"github.com/prebid/prebid-server/v3/modules/pubmatic/openwrap/models/adunitconfig"
+)
+
+func UpdateNativeObjectWithAdunitConfig(rCtx models.RequestCtx, imp openrtb2.Imp, div string) (adUnitCtx models.AdUnitCtx) {
+	defer func() {
+		if r := recover(); r != nil {
+			rCtx.MetricsEngine.RecordOpenWrapServerPanicStats(rCtx.HostName, "UpdateNativeObjectWithAdunitConfig")
+			glog.Error(string(debug.Stack()))
+		}
+	}()
+
+	nativeAdUnitConfigEnabled := true
+	defer func() {
+		if imp.Native != nil && !nativeAdUnitConfigEnabled {
+			rCtx.MetricsEngine.RecordImpDisabledViaConfigStats(models.ImpTypeNative, rCtx.PubIDStr, rCtx.ProfileIDStr)
+		}
+	}()
+
+	if rCtx.AdUnitConfig == nil || len(rCtx.AdUnitConfig.Config) == 0 {
+		return
+	}
+
+	defaultAdUnitConfig, ok := rCtx.AdUnitConfig.Config[models.AdunitConfigDefaultKey]
+	if ok && defaultAdUnitConfig != nil {
+		adUnitCtx.UsingDefaultConfig = true
+
+		if defaultAdUnitConfig.Native != nil && defaultAdUnitConfig.Native.Enabled != nil && !*defaultAdUnitConfig.Native.Enabled {
+			nativeAdUnitConfigEnabled = false
+			adUnitCtx.AppliedSlotAdUnitConfig = &adunitconfig.AdConfig{Native: &adunitconfig.Native{Enabled: &nativeAdUnitConfigEnabled}}
+			return
+		}
+	}
+
+	adUnitCtx.SelectedSlotAdUnitConfig, adUnitCtx.MatchedSlot, adUnitCtx.IsRegex, adUnitCtx.MatchedRegex = selectSlot(rCtx, 0, 0, imp.TagID, div, rCtx.Source)
+	if adUnitCtx.SelectedSlotAdUnitConfig != nil && adUnitCtx.SelectedSlotAdUnitConfig.Native != nil {
+		adUnitCtx.UsingDefaultConfig = false
+
+		if adUnitCtx.SelectedSlotAdUnitConfig.Native.Enabled != nil && !*adUnitCtx.SelectedSlotAdUnitConfig.Native.Enabled {
+			nativeAdUnitConfigEnabled = false
+			adUnitCtx.AppliedSlotAdUnitConfig = &adunitconfig.AdConfig{Native: &adunitconfig.Native{Enabled: &nativeAdUnitConfigEnabled}}
+			return
+		}
+	}
+
+	adUnitCtx.AppliedSlotAdUnitConfig = getFinalSlotAdUnitConfig(adUnitCtx.SelectedSlotAdUnitConfig, defaultAdUnitConfig)
+
+	return
+}