From b8fdb4202fa41a7a067f9fd5c366f4a873aaa604 Mon Sep 17 00:00:00 2001
From: seriousm4x <maxi@quoss.org>
Date: Tue, 15 Aug 2023 18:17:06 +0200
Subject: [PATCH] feat: only refresh jwt if valid less than 1 day

---
 frontend/src/routes/+layout.svelte     | 22 ++++++++++++++++++++++
 frontend/src/routes/login/+page.svelte |  7 +++++++
 2 files changed, 29 insertions(+)

diff --git a/frontend/src/routes/+layout.svelte b/frontend/src/routes/+layout.svelte
index 0139f5ac..5002ecf2 100644
--- a/frontend/src/routes/+layout.svelte
+++ b/frontend/src/routes/+layout.svelte
@@ -63,6 +63,12 @@
 			return;
 		}
 
+		// only refresh token if valid less than 1 day
+		const jwt = parseJwt($pocketbase.authStore.token);
+		if (jwt.exp > Date.now() / 1000 + 60 * 60 * 24) {
+			return;
+		}
+
 		if ($pocketbase.authStore.model?.collectionName === 'users') {
 			await $pocketbase
 				.collection('users')
@@ -76,6 +82,22 @@
 			});
 		}
 	});
+
+	function parseJwt(token: string) {
+		var base64Url = token.split('.')[1];
+		var base64 = base64Url.replace(/-/g, '+').replace(/_/g, '/');
+		var jsonPayload = decodeURIComponent(
+			window
+				.atob(base64)
+				.split('')
+				.map(function (c) {
+					return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
+				})
+				.join('')
+		);
+
+		return JSON.parse(jsonPayload);
+	}
 </script>
 
 <svelte:head>
diff --git a/frontend/src/routes/login/+page.svelte b/frontend/src/routes/login/+page.svelte
index 6703665c..2ebe3514 100644
--- a/frontend/src/routes/login/+page.svelte
+++ b/frontend/src/routes/login/+page.svelte
@@ -6,6 +6,7 @@
 	import { faLockOpen, faEye } from '@fortawesome/free-solid-svg-icons';
 	import { toggleVisibility } from '$lib/helpers/forms';
 	import toast from 'svelte-french-toast';
+	import { onMount } from 'svelte';
 
 	let inputPassword: HTMLInputElement;
 	let form = {
@@ -13,6 +14,12 @@
 		password: ''
 	};
 
+	onMount(() => {
+		if ($pocketbase.authStore.isValid) {
+			goto('/');
+		}
+	});
+
 	function tryAdminThenUser() {
 		$pocketbase.admins
 			.authWithPassword(form.email, form.password)