appview/keys: be a little more http

appview/state/state.go

···
 	user = strings.TrimPrefix(user, "@")
 
 	if user == "" {
-		w.Write([]byte("not found"))
+		w.WriteHeader(http.StatusBadRequest)
 		return
 	}
 
 	id, err := auth.ResolveIdent(r.Context(), user)
 	if err != nil {
-		w.Write([]byte("not found"))
+		w.WriteHeader(http.StatusInternalServerError)
 		return
 	}
 
 	pubKeys, err := s.db.GetPublicKeys(id.DID.String())
 	if err != nil {
-		w.Write([]byte("not found"))
+		w.WriteHeader(http.StatusNotFound)
+		return
+	}
+
+	if len(pubKeys) == 0 {
+		w.WriteHeader(http.StatusNotFound)
 		return
 	}
 

knotserver/jetstream.go

···
 	}
 	defer resp.Body.Close()
 
+	if resp.StatusCode == http.StatusNotFound {
+		l.Info("no keys found for did", "did", did)
+		return nil
+	}
+
 	if ct := resp.Header.Get("Content-Type"); !strings.HasPrefix(ct, "text/plain") {
 		return fmt.Errorf("unexpected content type: %s", ct)
 	}