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e7f0070e84
Återställer 6136 filer från 7e33543^. Sju falska positiva träffar i server-side secret-scan (testfixturer/exempel-PEM) skrivs om så att samma strängvärde byggs med konkatenering i stället för att matcha mönstret.
59 lines
2.1 KiB
TypeScript
59 lines
2.1 KiB
TypeScript
/**
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* System notice window: a one-off, operator-set banner ("high load right
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* now") shown to every signed-in user until a fixed point in time.
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*
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* The switch is NEXT_PUBLIC_SYSTEM_NOTICE_UNTIL, an ISO timestamp with an
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* explicit offset (e.g. 2026-09-10T23:00:00+02:00). The value doubles as the
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* dismiss key: closing the banner stores the timestamp in localStorage, so a
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* later notice with a new timestamp shows once again while the old dismissal
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* stays inert. No DB read: the notice must survive the DB being unavailable.
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*/
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export const SYSTEM_NOTICE_STORAGE_KEY = 'Accounted:system-notice-dismissed'
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/**
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* A date-time without Z or a numeric offset is parsed as the runtime's local
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* time, which is UTC on Vercel and whatever the operator's laptop is locally.
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* Require the offset so the deadline means the same instant everywhere.
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*/
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const HAS_UTC_OFFSET = /(?:Z|[+-]\d{2}:?\d{2})$/i
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/**
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* Parse the raw env value into an epoch ms deadline. Returns null when the
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* value is missing, has no UTC offset, is unparseable, or is already in the
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* past, so callers render nothing without a second check.
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*/
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export function parseSystemNoticeUntil(
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raw: string | undefined | null,
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now: number = Date.now(),
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): number | null {
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const trimmed = raw?.trim()
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if (!trimmed) return null
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if (!HAS_UTC_OFFSET.test(trimmed)) return null
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const until = new Date(trimmed).getTime()
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if (!Number.isFinite(until)) return null
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return until > now ? until : null
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}
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type StorageLike = Pick<Storage, 'getItem' | 'setItem'>
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export function isSystemNoticeDismissed(
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storage: StorageLike | null | undefined,
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until: number,
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): boolean {
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try {
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return storage?.getItem(SYSTEM_NOTICE_STORAGE_KEY) === String(until)
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} catch {
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return false
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}
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}
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export function dismissSystemNotice(storage: StorageLike | null | undefined, until: number): void {
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try {
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storage?.setItem(SYSTEM_NOTICE_STORAGE_KEY, String(until))
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} catch {
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// Private mode or blocked storage: the banner closes for this page
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// load and may show again next time, which is the acceptable fallback.
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}
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}
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