created hwsauth module

hwsauth/protectpage.go

@@ -0,0 +1,43 @@
+package hwsauth
+
+import (
+	"net/http"
+	"time"
+)
+
+// Checks if the model is set in the context and shows 401 page if not logged in
+func (auth *Authenticator[T]) LoginReq(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		model := getAuthorizedModel[T](r.Context())
+		if model == nil {
+			auth.errorPage(http.StatusUnauthorized, w, r)
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}
+
+// Checks if the model is set in the context and redirects them to the landing page if
+// they are logged in
+func (auth *Authenticator[T]) LogoutReq(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		model := getAuthorizedModel[T](r.Context())
+		if model != nil {
+			http.Redirect(w, r, auth.LandingPage, http.StatusFound)
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}
+
+func (auth *Authenticator[T]) FreshReq(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		model := getAuthorizedModel[T](r.Context())
+		isFresh := time.Now().Before(time.Unix(model.fresh, 0))
+		if !isFresh {
+			w.WriteHeader(444)
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}