Chad Curtis
31 lines
993 B
TypeScript
31 lines
993 B
TypeScript
import { useEffect } from "react";
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import { toast } from "@/hooks/useToast";
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const NSEC_PATTERN = /nsec1[a-z0-9]{58}/i;
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export function useNsecPasteGuard() {
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useEffect(() => {
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function handlePaste(e: ClipboardEvent) {
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const text = e.clipboardData?.getData("text");
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if (!text || !NSEC_PATTERN.test(text)) return;
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// Allow pasting nsec into the login field
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const target = e.target as HTMLElement;
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if (target.id === "nsec" || target.closest?.("[data-nsec-allowed]")) return;
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e.preventDefault();
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e.stopImmediatePropagation();
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toast({
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title: "Secret key detected",
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description:
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"Your clipboard contains a secret key. Posting it publicly could give someone else full access to your account.",
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variant: "destructive",
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});
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}
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document.addEventListener("paste", handlePaste, { capture: true });
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return () => document.removeEventListener("paste", handlePaste, { capture: true });
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}, []);
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}
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