Add agent

pkg/registrar/endpoints.go

@@ -44,10 +44,9 @@ func (r Registrar) HandleRegistration(resp http.ResponseWriter, req *http.Reques
 	cert := req.TLS.PeerCertificates[0]
 
 	name := cert.DNSNames[0]
-	if r.repo.IsRegistered(name) {
-		resp.WriteHeader(http.StatusOK)
-		resp.Write([]byte(`{"status": "registered"}`))
-	} else {
+	app, err := r.repo.GetApp(name)
+	switch err {
+	case svc.ErrApplicationNotFound:
 		id := r.repo.StartAppRegistration(name)
 		event := map[string]string{
 			"id":   id.String(),
@@ -59,6 +58,12 @@ func (r Registrar) HandleRegistration(resp http.ResponseWriter, req *http.Reques
 
 		resp.WriteHeader(http.StatusCreated)
 		fmt.Fprintf(resp, `{"status": "pending_approval"}`)
+	case nil:
+		resp.WriteHeader(http.StatusOK)
+		fmt.Fprintf(resp, `{"status": "%s"}`, app.State)
+	default:
+		resp.WriteHeader(http.StatusInternalServerError)
+		fmt.Fprintf(resp, `{"errors": ["%s"]}`, err)
 	}
 }