wip

hub/util.go

@@ -0,0 +1,59 @@
+package hub
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"log"
+	"net/http"
+	"net/netip"
+	"strings"
+)
+
+func (app *App) render(name string, w http.ResponseWriter, data any) error {
+	tmpl, ok := app.tmpl[name]
+	if !ok {
+		log.Printf("Template not found: %s", name)
+		return errors.New("not found")
+	}
+	if err := tmpl.Execute(w, data); err != nil {
+		log.Printf("Failed to render template %s: %v", name, err)
+	}
+	return nil
+}
+
+func (app *App) redirect(w http.ResponseWriter, r *http.Request, url string, args ...any) error {
+	if len(args) > 0 {
+		url = fmt.Sprintf(url, args...)
+	}
+	http.Redirect(w, r, url, http.StatusSeeOther)
+	return nil
+}
+
+func (app *App) sendJSON(w http.ResponseWriter, data any) error {
+	w.Header().Set("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(data); err != nil {
+		log.Printf("Failed to send JSON: %v", err)
+	}
+	return nil
+}
+
+func stringToIP(in string) ([]byte, error) {
+	in = strings.TrimSpace(in)
+	if len(in) == 0 {
+		return []byte{}, nil
+	}
+
+	addr, err := netip.ParseAddr(in)
+	if err != nil {
+		return nil, err
+	}
+	return addr.AsSlice(), nil
+}
+
+func ipBytesTostring(in []byte) string {
+	if addr, ok := netip.AddrFromSlice(in); ok {
+		return addr.String()
+	}
+	return ""
+}