From a8219611cbebbd27501d9f30c804979048b98107 Mon Sep 17 00:00:00 2001
From: ivarlovlie <git@ivarlovlie.no>
Date: Tue, 13 Dec 2022 14:48:11 +0100
Subject: feat: A whole slew of things

- Use a md5 hash of the session cookie value as key for session validity check
- Introduce global state
- Introduce a common interface for form logic, and implement it on the sign-in form
- Introduce static resolve() on all services instead of new-upping all over.
- Implement /portal on the frontend to support giving the frontend a inital context from server or anywhere.
- Show a notification when users sign in for the first time after validating their email
---
 code/app/src/routes/(main)/+layout.server.ts | 76 ++++++++++------------------
 1 file changed, 28 insertions(+), 48 deletions(-)

(limited to 'code/app/src/routes/(main)/+layout.server.ts')

diff --git a/code/app/src/routes/(main)/+layout.server.ts b/code/app/src/routes/(main)/+layout.server.ts
index 4199d7f..b040b8f 100644
--- a/code/app/src/routes/(main)/+layout.server.ts
+++ b/code/app/src/routes/(main)/+layout.server.ts
@@ -1,35 +1,41 @@
-import {api_base, CookieNames} from "$configuration";
-import {log_debug, log_error} from "$help/logger";
-import {error, redirect} from "@sveltejs/kit";
-import {Temporal} from "temporal-polyfill";
-import type {LayoutServerLoad} from "./$types";
-
-export const load: LayoutServerLoad = async ({url, request, route, cookies, locals, fetch}) => {
-    console.log(url.toString());
+import { api_base, CookieNames } from "$configuration";
+import { cached_result_async, CacheKeys } from "$help/cache";
+import { log_debug, log_error } from "$help/logger";
+import { md5 } from "$help/md5";
+import { error, redirect } from "@sveltejs/kit";
+import type { LayoutServerLoad } from "./$types";
+
+export const load: LayoutServerLoad = async ({ route, cookies, locals, fetch }) => {
     const isBaseRoute = route.id === "/(main)";
-    const isPublicRoute = (route.id?.startsWith("/(main)/(public)") || isBaseRoute) ?? true;
+    const isPortalRoute = route.id === "/(main)/(public)/portal";
+    const isPublicRoute = (isBaseRoute || (route.id?.startsWith("/(main)/(public)") ?? false)) ?? true;
     const sessionCookieValue = cookies.get(CookieNames.session);
-    const hasSessionCookie = (sessionCookieValue?.length > 0 ?? false);
-    const sessionIsValid = hasSessionCookie && (await cached_result_async<Response>("sessionCheck", 120, () => fetch(api_base("_/is-authenticated"), {
-        headers: {
-            Cookie: CookieNames.session + "=" + sessionCookieValue,
-        },
-    }).catch((e) => {
-        log_error(e);
-        throw error(503, {
-            message: "We are experiencing a service disruption! Have patience while we resolve the issue.",
-        });
-    }))).ok;
+    let sessionIsValid = false;
+    if ((sessionCookieValue?.length > 0 ?? false)) {
+        const sessionHash = md5(sessionCookieValue);
+        sessionIsValid = (await cached_result_async<Response>(sessionHash + "_" + CacheKeys.isAuthenticated, 120, () => fetch(api_base("_/is-authenticated"), {
+            headers: {
+                Cookie: CookieNames.session + "=" + sessionCookieValue,
+            },
+        }).catch((e) => {
+            log_error(e);
+            throw error(503, {
+                message: "We are experiencing a service disruption! Have patience while we resolve the issue.",
+            });
+        }))).ok;
+    }
 
     log_debug("Base Layout loaded", {
         sessionIsValid,
         isPublicRoute,
+        isBaseRoute,
+        isPortalRoute,
         routeId: route.id,
     });
 
-    if (sessionIsValid && isPublicRoute) {
+    if (sessionIsValid && isPublicRoute && !isPortalRoute) {
         throw redirect(302, "/home");
-    } else if (isBaseRoute || !sessionIsValid && !isPublicRoute) {
+    } else if (!isPortalRoute && (isBaseRoute || !sessionIsValid && !isPublicRoute)) {
         throw redirect(302, "/sign-in");
     }
 
@@ -37,29 +43,3 @@ export const load: LayoutServerLoad = async ({url, request, route, cookies, loca
         locale: locals.locale,
     };
 };
-
-let resultCache = {};
-
-async function cached_result_async<T>(key: string, staleAfterSeconds: number, get_result: any, forceRefresh: boolean = false) {
-    if (!resultCache[key]) {
-        resultCache[key] = {
-            l: 0,
-            c: undefined as T,
-        };
-    }
-    const staleEpoch = ((resultCache[key]?.l ?? 0) + staleAfterSeconds);
-    const isStale = forceRefresh || (staleEpoch < Temporal.Now.instant().epochSeconds);
-    if (isStale || !resultCache[key]?.c) {
-        resultCache[key].c = await get_result();
-        resultCache[key].l = Temporal.Now.instant().epochSeconds;
-    }
-
-    log_debug("Ran cached_result_async", {
-        cacheKey: key,
-        isStale,
-        cache: resultCache[key],
-        staleEpoch,
-    });
-
-    return resultCache[key].c as T;
-}
\ No newline at end of file
-- 
cgit v1.3