From 2ecf4ce7e37cb7a6fb1cfc7464d7ac40fb326605 Mon Sep 17 00:00:00 2001
From: Thomas Voss <mail@thomasvoss.com>
Date: Tue, 20 Jun 2023 21:31:12 +0200
Subject: Turn session cookie to persistent cookie

---
 server.go | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/server.go b/server.go
index 10cb474..4788de7 100644
--- a/server.go
+++ b/server.go
@@ -44,7 +44,7 @@ func router(w http.ResponseWriter, r *http.Request) {
 			Name: "redirect",
 			Path: "/",
 		})
-		http.Redirect(w, r, url + lang + "/", http.StatusTemporaryRedirect)
+		http.Redirect(w, r, url+lang+"/", http.StatusTemporaryRedirect)
 		return
 	}
 
@@ -54,21 +54,27 @@ func router(w http.ResponseWriter, r *http.Request) {
 	_, err = r.Cookie("redirect")
 	if isSupportedLanguage(parts[0]) && parts[0] != lang {
 		if r.Header.Get("Referer") == "" && err != nil {
-			parts[0] = lang
-			path = strings.Join(parts, "/")
-			http.SetCookie(w, &http.Cookie{
-				Name: "redirect",
-				Path: "/",
-			})
-			http.Redirect(w, r, url + path, http.StatusTemporaryRedirect)
+			if !errors.Is(err, http.ErrNoCookie) {
+				log.Println(err)
+				http.Error(w, "An error occured", http.StatusInternalServerError)
+			} else {
+				parts[0] = lang
+				path = strings.Join(parts, "/")
+				http.SetCookie(w, &http.Cookie{
+					Name: "redirect",
+					Path: "/",
+				})
+				http.Redirect(w, r, url+path, http.StatusTemporaryRedirect)
+			}
 			return
 		}
 
 		if r.Header.Get("Referer") != "" {
 			http.SetCookie(w, &http.Cookie{
-				Name: CookieName,
-				Value: parts[0],
-				Path:  "/",
+				Name:    CookieName,
+				Value:   parts[0],
+				Expires: time.Now().AddDate(100, 0, 0),
+				Path:    "/",
 			})
 		}
 	}
-- 
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