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class BaseWebAuthnAbortService {
private controller: AbortController | undefined;
/**
* Prepare an abort signal that will help support multiple auth attempts without needing to
* reload the page. This is automatically called whenever `startRegistration()` and
* `startAuthentication()` are called.
*/
createNewAbortSignal() {
// Abort any existing calls to navigator.credentials.create() or navigator.credentials.get()
if (this.controller) {
const abortError = new Error(
'Cancelling existing WebAuthn API call for new one',
);
abortError.name = 'AbortError';
this.controller.abort(abortError);
}
const newController = new AbortController();
this.controller = newController;
return newController.signal;
}
/**
* Manually cancel any active WebAuthn registration or authentication attempt.
*/
cancelCeremony() {
if (this.controller) {
const abortError = new Error(
'Manually cancelling existing WebAuthn API call',
);
abortError.name = 'AbortError';
this.controller.abort(abortError);
this.controller = undefined;
}
}
}
/**
* A service singleton to help ensure that only a single WebAuthn ceremony is active at a time.
*
* Users of **@simplewebauthn/browser** shouldn't typically need to use this, but it can help e.g.
* developers building projects that use client-side routing to better control the behavior of
* their UX in response to router navigation events.
*/
export const WebAuthnAbortService = new BaseWebAuthnAbortService();
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