Update page contents

main.go

@@ -19,8 +19,9 @@ var hjemTemplate string
 var port = flag.Int("p", 1437, "set the port for hjem to use")
 
 type HjemData struct {
-	OS    string
-	Email string
+	OS       string
+	Email    string
+	Timezone string
 }
 
 func main() {
@@ -67,12 +68,26 @@ func main() {
 		}
 	}
 
+	user_tz := "UTC"
+	if tz := os.Getenv("TZ"); tz != "" {
+		user_tz = tz
+	} else if data, err := os.ReadFile("/etc/timezone"); err == nil {
+		if tz := strings.TrimSpace(string(data)); tz != "" {
+			user_tz = tz
+		}
+	} else if path, err := os.Readlink("/etc/localtime"); err == nil {
+		user_tz = filepath.Join(
+			filepath.Base(filepath.Dir(path)),
+			filepath.Base(path))
+	}
+
 	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Content-Type", "text/html; charset=utf-8")
 
 		err := t.ExecuteTemplate(w, "hjem", HjemData{
-			OS:    user_os,
-			Email: user_email,
+			OS:       user_os,
+			Email:    user_email,
+			Timezone: user_tz,
 		})
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)