52 lines
1.8 KiB
TypeScript
52 lines
1.8 KiB
TypeScript
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/**
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* Auto-tab memory — apps observed to refuse iframe embedding.
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*
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* The gate strips frame-blocking headers for gated apps (1.8.1+), but three
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* failure modes survive any header fix: JS frame-busting, apps that must be
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* the top-level origin (OAuth/WebAuthn), and SameSite=Strict session cookies.
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* Cross-origin embed failure is not reliably detectable up front from the
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* browser, so the app session's load-timeout is the detector — and this
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* module is the memory: once an app is seen blocked while RUNNING, it is
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* remembered here and every later launch opens it as a tab app directly from
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* the click (a user gesture, so never popup-blocked). The dead grey pane
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* happens at most once per app.
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*
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* Entries expire after 7 days so a node update that fixes embedding (for
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* example a gate improvement) gets re-probed instead of being remembered as
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* broken forever; a successful iframe load also clears the entry immediately.
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*/
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const KEY = 'archipelago_auto_new_tab_apps'
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const EXPIRY_MS = 7 * 24 * 60 * 60 * 1000
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function read(): Record<string, number> {
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try {
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const raw = JSON.parse(localStorage.getItem(KEY) || '{}')
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if (raw && typeof raw === 'object' && !Array.isArray(raw)) return raw
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} catch { /* corrupt/unavailable storage reads as empty */ }
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return {}
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}
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function write(entries: Record<string, number>) {
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try { localStorage.setItem(KEY, JSON.stringify(entries)) } catch { /* full/denied */ }
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}
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export function isAutoTabApp(id: string): boolean {
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const at = read()[id]
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return typeof at === 'number' && Date.now() - at < EXPIRY_MS
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}
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export function rememberAutoTabApp(id: string): void {
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const entries = read()
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entries[id] = Date.now()
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write(entries)
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}
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export function forgetAutoTabApp(id: string): void {
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const entries = read()
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if (id in entries) {
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delete entries[id]
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write(entries)
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}
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}
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