mgmtapi: support deleting segments and beacons (scionproto#4465)

Support deleting segments and beacons via the management API of the
control and daemon service. This is useful for cleaning up the databases
(e.g., in case the issue mentioned in scionproto#4286 occurs)

control/mgmtapi/api.go

@@ -44,6 +44,7 @@ import (
 
 type BeaconStore interface {
 	GetBeacons(context.Context, *beaconstorage.QueryParams) ([]beaconstorage.Beacon, error)
+	DeleteBeacon(ctx context.Context, idPrefix string) error
 }
 
 type Healther interface {
@@ -378,6 +379,27 @@ func (s *Server) GetBeacon(w http.ResponseWriter, r *http.Request, segmentId Seg
 	}
 }
 
+func (s *Server) DeleteBeacon(w http.ResponseWriter, r *http.Request, segmentId SegmentID) {
+	if segmentId == "" {
+		ErrorResponse(w, Problem{
+			Status: http.StatusBadRequest,
+			Title:  "segment ID is required",
+			Type:   api.StringRef(api.BadRequest),
+		})
+		return
+	}
+	if err := s.Beacons.DeleteBeacon(r.Context(), segmentId); err != nil {
+		ErrorResponse(w, Problem{
+			Detail: api.StringRef(err.Error()),
+			Status: http.StatusInternalServerError,
+			Title:  "unable to delete beacon",
+			Type:   api.StringRef(api.InternalError),
+		})
+		return
+	}
+	w.WriteHeader(http.StatusNoContent)
+}
+
 func (s *Server) GetBeaconBlob(w http.ResponseWriter, r *http.Request, segmentId SegmentID) {
 	w.Header().Set("Content-Type", "application/x-pem-file")
 
@@ -471,6 +493,10 @@ func (s *Server) GetSegment(w http.ResponseWriter, r *http.Request, id SegmentID
 	s.SegmentsServer.GetSegment(w, r, id)
 }
 
+func (s *Server) DeleteSegment(w http.ResponseWriter, r *http.Request, id SegmentID) {
+	s.SegmentsServer.DeleteSegment(w, r, id)
+}
+
 func (s *Server) GetSegmentBlob(w http.ResponseWriter, r *http.Request, id SegmentID) {
 	s.SegmentsServer.GetSegmentBlob(w, r, id)
 }