Add error messages in login page

1 files changed, 12 insertions, 4 deletions

diff --git a/main.go b/main.go
index 34667cf..86fd969 100644
--- a/main.go
+++ b/main.go
@@ -75,15 +75,23 @@ func (app *App) loginHandler(w http.ResponseWriter, r *http.Request) {
 			http.SetCookie(w, &c)
 			http.Redirect(w, r, next, http.StatusSeeOther)
 		} else {
+			var flash string
+			if !ok {
+				flash = "Utilisateur non enregistré"
+			} else if subtle.ConstantTimeCompare(u.Password, hash) != 1 {
+				flash = "Mot de passe incorrect"
+			}
 			app.Template.ExecuteTemplate(w, "login.tmpl", struct {
-				Next string
-			}{next})
+				Next  string
+				Flash string
+			}{next, flash})
 		}
 	} else if r.Method == http.MethodGet {
 		next := r.FormValue("next")
 		app.Template.ExecuteTemplate(w, "login.tmpl", struct {
-			Next string
-		}{next})
+			Next  string
+			Flash string
+		}{next, ""})
 	}
 }