start adding handling for lnurlp

main.go

@@ -24,6 +24,68 @@ func write_error_message(w http.ResponseWriter, message string) {
 	w.Write(jsonData)
 }
 
+func lnurlp_response(w http.ResponseWriter, r *http.Request) {
+	name := mux.Vars(r)["name"]
+
+	log.WithFields(
+        	log.Fields{
+            		"url_path": r.URL.Path,
+			"name": name,
+			"r.Host": r.Host,
+		},).Info("lnurlp_response")
+
+// look up domain in env vars (HOST_DOMAIN)
+	env_host_domain := os.Getenv("HOST_DOMAIN")
+	if r.Host != env_host_domain {
+		log.Warn("wrong host domain")
+		write_error(w)
+		return
+	}
+
+// look up name in database (table cards, field card_name)
+
+        card_count, err := db_get_card_count_for_name(name)
+        if err != nil {
+	        log.Warn("could not get card count for name")
+		write_error(w)
+		return
+        }
+
+	if card_count != 1 {
+		log.Info("not one card with that name")
+		write_error(w)
+		return
+	}
+
+	jsonData := []byte(`{"status":"OK",` +
+		`"callback":"https://` + env_host_domain + `/lnurlp/` + name + `",` +
+		`"tag":"payRequest",` +
+		`"maxSendable":1000000000,` +
+		`"minSendable":1000,` +
+		`"metadata":"[[\"text/plain\",\"` + name + `@` + env_host_domain + `\"]]",` +
+		`"commentAllowed":0` +
+	`}`)
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusOK)
+	w.Write(jsonData)
+}
+
+func lnurlp_callback(w http.ResponseWriter, r *http.Request) {
+	name := mux.Vars(r)["name"]
+	amount := r.URL.Query().Get("amount");
+
+	log.WithFields(
+        	log.Fields{
+            		"url_path": r.URL.Path,
+			"name": name,
+			"amount": amount,
+			"req.Host": r.Host,
+		},).Info("lnurlp_callback")
+
+
+}
+
 func main() {
 	log_level := os.Getenv("LOG_LEVEL")
 
@@ -39,19 +101,20 @@ func main() {
 	})
 
 // createboltcard
-	router.Path("/new").HandlerFunc(new_card_request)
+	router.Path("/new").Methods("GET").HandlerFunc(new_card_request)
 // lnurlw for pos
-	router.Path("/ln").HandlerFunc(lnurlw_response)
-	router.Path("/cb").HandlerFunc(lnurlw_callback)
-// lnurlp for lightning address
-//	mux.HandleFunc("/.well-known/lnurlp/", lnurlp_response)
+	router.Path("/ln").Methods("GET").HandlerFunc(lnurlw_response)
+	router.Path("/cb").Methods("GET").HandlerFunc(lnurlw_callback)
+// lnurlp for lightning address lnurlp
+	router.Path("/.well-known/lnurlp/{name}").Methods("GET").HandlerFunc(lnurlp_response)
+	router.Path("/lnurlp/{name}").Methods("GET").HandlerFunc(lnurlp_callback)
 
 	port := os.Getenv("HOST_PORT")
 	if len(port) == 0 {
 		port = "9000"
 	}
 
-	srv := &http.Server{
+	srv := &http.Server {
 		Handler:      router,
 		Addr:         ":" + port, // consider adding host
 		WriteTimeout: 30 * time.Second,