Init

internal/httpx/httpx.go

@@ -0,0 +1,33 @@
+package httpx
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+	"strings"
+)
+
+func JSON(w http.ResponseWriter, status int, v any) {
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+	w.WriteHeader(status)
+	_ = json.NewEncoder(w).Encode(v)
+}
+
+func Error(w http.ResponseWriter, status int, msg string) {
+	JSON(w, status, map[string]any{"error": msg})
+}
+
+func DecodeJSON(r *http.Request, dst any, max int64) error {
+	dec := json.NewDecoder(io.LimitReader(r.Body, max))
+	dec.DisallowUnknownFields()
+	return dec.Decode(dst)
+}
+
+func SameOrigin(r *http.Request) bool {
+	origin := r.Header.Get("Origin")
+	if origin == "" {
+		return true
+	}
+	host := r.Host
+	return strings.HasSuffix(origin, "://"+host)
+}