22 lines
759 B
TypeScript
22 lines
759 B
TypeScript
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/** Internal path safe to use as a post-login redirect target. */
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export function getSafeReturnTo(
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value: string | null | undefined,
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): string | null {
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if (!value) return null;
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if (!value.startsWith("/") || value.startsWith("//")) return null;
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if (value === "/login" || value.startsWith("/login?")) return null;
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return value;
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}
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export function loginPathWithReturnTo(returnTo: string): string {
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const safe = getSafeReturnTo(returnTo);
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if (!safe) return "/login";
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return `/login?returnTo=${encodeURIComponent(safe)}`;
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}
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export function readReturnToFromLocation(): string {
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if (typeof window === "undefined") return "/";
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const params = new URLSearchParams(window.location.search);
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return getSafeReturnTo(params.get("returnTo")) ?? "/";
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}
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