Add support for showing anycast addresses in the UI

service/intel/geoip/country_info.go

@@ -11,6 +11,14 @@ func (l *Location) AddCountryInfo() {
 		return
 	}
 
+	// Check for anycast.
+	if l.IsAnycast {
+		// Reset data for anycast.
+		l.Country.Code = "__"
+		l.Coordinates.Latitude = 0
+		l.Coordinates.Longitude = 0
+	}
+
 	// Get country info.
 	info, ok := countries[l.Country.Code]
 	if !ok {
@@ -83,6 +91,10 @@ func init() {
 }
 
 var countries = map[string]CountryInfo{
+	"__": {
+		Name:   "Anycast",
+		Center: Coordinates{AccuracyRadius: earthCircumferenceInKm},
+	},
 	"MN": {
 		Name:      "Mongolia",
 		Continent: ContinentInfo{Region: "AS-E"},

service/intel/geoip/country_info_test.go

@@ -9,6 +9,11 @@ func TestCountryInfo(t *testing.T) {
 	t.Parallel()
 
 	for key, country := range countries {
+		// Skip special anycast country.
+		if key == "__" {
+			continue
+		}
+
 		if key != country.Code {
 			t.Errorf("%s has a wrong country code of %q", key, country.Code)
 		}