JCEEE
33 lines
1.1 KiB
TypeScript
33 lines
1.1 KiB
TypeScript
// Per-device "this is a shared computer" flag. localStorage is the source of
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// truth (shared-ness is a property of THIS browser, not the family — a DB
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// flag would force PIN mode on every device including a parent's phone).
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// A plain cookie mirror lets server loads see it too (localStorage never
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// reaches the server). Neither is a security boundary: the PIN + device
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// session cookies remain the actual gate (see shared-device.md).
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const LS_KEY = 'fam_shared_device';
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const COOKIE = 'fam_shared_device';
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export function isSharedDevice(): boolean {
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if (typeof localStorage === 'undefined') return false;
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try {
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return localStorage.getItem(LS_KEY) === '1';
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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 setSharedDevice(on: boolean) {
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try {
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if (on) localStorage.setItem(LS_KEY, '1');
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else localStorage.removeItem(LS_KEY);
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} catch {
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/* private mode etc. — flag simply doesn't persist */
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}
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if (typeof document !== 'undefined') {
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document.cookie =
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on
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? `${COOKIE}=1; path=/; max-age=31536000; SameSite=Lax`
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: `${COOKIE}=; path=/; max-age=0; SameSite=Lax`;
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}
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}
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