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provider.go
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/
provider.go
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package macros
import (
"net/url"
"strconv"
"time"
"github.com/prebid/prebid-server/v2/exchange/entities"
"github.com/prebid/prebid-server/v2/openrtb_ext"
)
const (
MacroKeyBidID = "PBS-BIDID"
MacroKeyAppBundle = "PBS-APPBUNDLE"
MacroKeyDomain = "PBS-DOMAIN"
MacroKeyPubDomain = "PBS-PUBDOMAIN"
MacroKeyPageURL = "PBS-PAGEURL"
MacroKeyAccountID = "PBS-ACCOUNTID"
MacroKeyLmtTracking = "PBS-LIMITADTRACKING"
MacroKeyConsent = "PBS-GDPRCONSENT"
MacroKeyBidder = "PBS-BIDDER"
MacroKeyIntegration = "PBS-INTEGRATION"
MacroKeyVastCRTID = "PBS-VASTCRTID"
MacroKeyTimestamp = "PBS-TIMESTAMP"
MacroKeyAuctionID = "PBS-AUCTIONID"
MacroKeyChannel = "PBS-CHANNEL"
MacroKeyEventType = "PBS-EVENTTYPE"
MacroKeyVastEvent = "PBS-VASTEVENT"
)
const (
customMacroLength = 100
CustomMacroPrefix = "PBS-MACRO-"
)
type MacroProvider struct {
// macros map stores macros key values
macros map[string]string
}
// NewBuilder returns the instance of macro buidler
func NewProvider(reqWrapper *openrtb_ext.RequestWrapper) *MacroProvider {
macroProvider := &MacroProvider{macros: map[string]string{}}
macroProvider.populateRequestMacros(reqWrapper)
return macroProvider
}
func (b *MacroProvider) populateRequestMacros(reqWrapper *openrtb_ext.RequestWrapper) {
b.macros[MacroKeyTimestamp] = strconv.Itoa(int(time.Now().Unix()))
reqExt, err := reqWrapper.GetRequestExt()
if err == nil && reqExt != nil {
if reqPrebidExt := reqExt.GetPrebid(); reqPrebidExt != nil {
for key, value := range reqPrebidExt.Macros {
customMacroKey := CustomMacroPrefix + key // Adding prefix PBS-MACRO to custom macro keys
b.macros[customMacroKey] = truncate(value, customMacroLength) // limit the custom macro value to 100 chars only
}
if reqPrebidExt.Integration != "" {
b.macros[MacroKeyIntegration] = reqPrebidExt.Integration
}
if reqPrebidExt.Channel != nil {
b.macros[MacroKeyChannel] = reqPrebidExt.Channel.Name
}
}
}
b.macros[MacroKeyAuctionID] = reqWrapper.ID
if reqWrapper.App != nil {
if reqWrapper.App.Bundle != "" {
b.macros[MacroKeyAppBundle] = reqWrapper.App.Bundle
}
if reqWrapper.App.Domain != "" {
b.macros[MacroKeyDomain] = reqWrapper.App.Domain
}
if reqWrapper.App.Publisher != nil {
if reqWrapper.App.Publisher.Domain != "" {
b.macros[MacroKeyPubDomain] = reqWrapper.App.Publisher.Domain
}
if reqWrapper.App.Publisher.ID != "" {
b.macros[MacroKeyAccountID] = reqWrapper.App.Publisher.ID
}
}
}
if reqWrapper.Site != nil {
if reqWrapper.Site.Page != "" {
b.macros[MacroKeyPageURL] = reqWrapper.Site.Page
}
if reqWrapper.Site.Domain != "" {
b.macros[MacroKeyDomain] = reqWrapper.Site.Domain
}
if reqWrapper.Site.Publisher != nil {
if reqWrapper.Site.Publisher.Domain != "" {
b.macros[MacroKeyPubDomain] = reqWrapper.Site.Publisher.Domain
}
if reqWrapper.Site.Publisher.ID != "" {
b.macros[MacroKeyAccountID] = reqWrapper.Site.Publisher.ID
}
}
}
userExt, err := reqWrapper.GetUserExt()
if err == nil && userExt != nil && userExt.GetConsent() != nil {
b.macros[MacroKeyConsent] = *userExt.GetConsent()
}
if reqWrapper.Device != nil && reqWrapper.Device.Lmt != nil {
b.macros[MacroKeyLmtTracking] = strconv.Itoa(int(*reqWrapper.Device.Lmt))
}
}
func (b *MacroProvider) GetMacro(key string) string {
return url.QueryEscape(b.macros[key])
}
func (b *MacroProvider) PopulateBidMacros(bid *entities.PbsOrtbBid, seat string) {
if bid.Bid != nil {
if bid.GeneratedBidID != "" {
b.macros[MacroKeyBidID] = bid.GeneratedBidID
} else {
b.macros[MacroKeyBidID] = bid.Bid.ID
}
}
b.macros[MacroKeyBidder] = seat
}
func (b *MacroProvider) PopulateEventMacros(vastCreativeID, eventType, vastEvent string) {
b.macros[MacroKeyVastCRTID] = vastCreativeID
b.macros[MacroKeyEventType] = eventType
b.macros[MacroKeyVastEvent] = vastEvent
}
func truncate(text string, width uint) string {
r := []rune(text)
if uint(len(r)) < (width) {
return text
}
trunc := r[:width]
return string(trunc)
}