Add support for matching continents

profile/endpoints/endpoint-continent.go

@@ -0,0 +1,63 @@
+package endpoints
+
+import (
+	"context"
+	"fmt"
+	"regexp"
+	"strings"
+
+	"github.com/safing/portmaster/intel"
+)
+
+var (
+	continentCodePrefix = "C:"
+	continentRegex      = regexp.MustCompile(`^C:[A-Z]{2}$`)
+)
+
+// EndpointContinent matches countries.
+type EndpointContinent struct {
+	EndpointBase
+
+	ContinentCode string
+}
+
+// Matches checks whether the given entity matches this endpoint definition.
+func (ep *EndpointContinent) Matches(ctx context.Context, entity *intel.Entity) (EPResult, Reason) {
+	if entity.IP == nil {
+		return NoMatch, nil
+	}
+
+	if !entity.IPScope.IsGlobal() {
+		return NoMatch, nil
+	}
+
+	countryInfo := entity.GetCountryInfo(ctx)
+	if countryInfo == nil {
+		return MatchError, ep.makeReason(ep, "", "country data not available to match")
+	}
+
+	if ep.ContinentCode == countryInfo.Continent.Code {
+		return ep.match(
+			ep, entity,
+			fmt.Sprintf("%s (%s)", countryInfo.Continent.Name, countryInfo.Continent.Code),
+			"IP is located in",
+		)
+	}
+
+	return NoMatch, nil
+}
+
+func (ep *EndpointContinent) String() string {
+	return ep.renderPPP(continentCodePrefix + ep.ContinentCode)
+}
+
+func parseTypeContinent(fields []string) (Endpoint, error) {
+	if continentRegex.MatchString(fields[1]) {
+		ep := &EndpointContinent{
+			ContinentCode: strings.TrimPrefix(strings.ToUpper(fields[1]), continentCodePrefix),
+		}
+		return ep.parsePPP(ep, fields)
+	}
+
+	return nil, nil
+}

profile/endpoints/endpoint.go

@@ -232,6 +232,10 @@ func parseEndpoint(value string) (endpoint Endpoint, err error) { //nolint:gocog
 	if endpoint, err = parseTypeCountry(fields); endpoint != nil || err != nil {
 		return
 	}
+	// continent
+	if endpoint, err = parseTypeContinent(fields); endpoint != nil || err != nil {
+		return
+	}
 	// asn
 	if endpoint, err = parseTypeASN(fields); endpoint != nil || err != nil {
 		return