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import { isValidDomain } from "./isValidDomain";
import { WebAuthnError } from "./webAuthnError";
/**
* Attempt to intuit _why_ an error was raised after calling `navigator.credentials.get()`
*/
export function identifyAuthenticationError({
error,
options,
}: {
error: Error;
options: CredentialRequestOptions;
}): WebAuthnError | Error {
const { publicKey } = options;
if (!publicKey) {
throw Error("options was missing required publicKey property");
}
if (error.name === "AbortError") {
if (options.signal instanceof AbortSignal) {
// https://www.w3.org/TR/webauthn-2/#sctn-createCredential (Step 16)
return new WebAuthnError({
message: "Authentication ceremony was sent an abort signal",
code: "ERROR_CEREMONY_ABORTED",
cause: error,
});
}
} else if (error.name === "NotAllowedError") {
/**
* Pass the error directly through. Platforms are overloading this error beyond what the spec
* defines and we don't want to overwrite potentially useful error messages.
*/
return new WebAuthnError({
message: error.message,
code: "ERROR_PASSTHROUGH_SEE_CAUSE_PROPERTY",
cause: error,
});
} else if (error.name === "SecurityError") {
const effectiveDomain = window.location.hostname;
if (!isValidDomain(effectiveDomain)) {
// https://www.w3.org/TR/webauthn-2/#sctn-discover-from-external-source (Step 5)
return new WebAuthnError({
message: `${window.location.hostname} is an invalid domain`,
code: "ERROR_INVALID_DOMAIN",
cause: error,
});
} else if (publicKey.rpId !== effectiveDomain) {
// https://www.w3.org/TR/webauthn-2/#sctn-discover-from-external-source (Step 6)
return new WebAuthnError({
message: `The RP ID "${publicKey.rpId}" is invalid for this domain`,
code: "ERROR_INVALID_RP_ID",
cause: error,
});
}
} else if (error.name === "UnknownError") {
// https://www.w3.org/TR/webauthn-2/#sctn-op-get-assertion (Step 1)
// https://www.w3.org/TR/webauthn-2/#sctn-op-get-assertion (Step 12)
return new WebAuthnError({
message:
"The authenticator was unable to process the specified options, or could not create a new assertion signature",
code: "ERROR_AUTHENTICATOR_GENERAL_ERROR",
cause: error,
});
}
return error;
}
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