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import { isValidDomain } from './isValidDomain';
import { WebAuthnError } from './webAuthnError';
/**
* Attempt to intuit _why_ an error was raised after calling `navigator.credentials.create()`
*/
export function identifyRegistrationError({
error,
options,
}: {
error: Error;
options: CredentialCreationOptions;
}): WebAuthnError | Error {
const { publicKey } = options;
if (!publicKey) {
throw Error('options was missing required publicKey property');
}
if (error.name === 'AbortError') {
if (options.signal === new AbortController().signal) {
// https://www.w3.org/TR/webauthn-2/#sctn-createCredential (Step 16)
return new WebAuthnError({
message: 'Registration ceremony was sent an abort signal',
code: 'ERROR_CEREMONY_ABORTED',
cause: error,
});
}
} else if (error.name === 'ConstraintError') {
if (publicKey.authenticatorSelection?.requireResidentKey === true) {
// https://www.w3.org/TR/webauthn-2/#sctn-op-make-cred (Step 4)
return new WebAuthnError({
message: 'Discoverable credentials were required but no available authenticator supported it',
code: 'ERROR_AUTHENTICATOR_MISSING_DISCOVERABLE_CREDENTIAL_SUPPORT',
cause: error,
});
} else if (publicKey.authenticatorSelection?.userVerification === 'required') {
// https://www.w3.org/TR/webauthn-2/#sctn-op-make-cred (Step 5)
return new WebAuthnError({
message: 'User verification was required but no available authenticator supported it',
code: 'ERROR_AUTHENTICATOR_MISSING_USER_VERIFICATION_SUPPORT',
cause: error,
});
}
} else if (error.name === 'InvalidStateError') {
// https://www.w3.org/TR/webauthn-2/#sctn-createCredential (Step 20)
// https://www.w3.org/TR/webauthn-2/#sctn-op-make-cred (Step 3)
return new WebAuthnError({
message: 'The authenticator was previously registered',
code: 'ERROR_AUTHENTICATOR_PREVIOUSLY_REGISTERED',
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 === 'NotSupportedError') {
const validPubKeyCredParams = publicKey.pubKeyCredParams.filter(
param => param.type === 'public-key',
);
if (validPubKeyCredParams.length === 0) {
// https://www.w3.org/TR/webauthn-2/#sctn-createCredential (Step 10)
return new WebAuthnError({
message: 'No entry in pubKeyCredParams was of type "public-key"',
code: 'ERROR_MALFORMED_PUBKEYCREDPARAMS',
cause: error,
});
}
// https://www.w3.org/TR/webauthn-2/#sctn-op-make-cred (Step 2)
return new WebAuthnError({
message: 'No available authenticator supported any of the specified pubKeyCredParams algorithms',
code: 'ERROR_AUTHENTICATOR_NO_SUPPORTED_PUBKEYCREDPARAMS_ALG',
cause: error,
});
} else if (error.name === 'SecurityError') {
const effectiveDomain = window.location.hostname;
if (!isValidDomain(effectiveDomain)) {
// https://www.w3.org/TR/webauthn-2/#sctn-createCredential (Step 7)
return new WebAuthnError({
message: `${window.location.hostname} is an invalid domain`,
code: 'ERROR_INVALID_DOMAIN',
cause: error
});
} else if (publicKey.rp.id !== effectiveDomain) {
// https://www.w3.org/TR/webauthn-2/#sctn-createCredential (Step 8)
return new WebAuthnError({
message: `The RP ID "${publicKey.rp.id}" is invalid for this domain`,
code: 'ERROR_INVALID_RP_ID',
cause: error,
});
}
} else if (error.name === 'TypeError') {
if (publicKey.user.id.byteLength < 1 || publicKey.user.id.byteLength > 64) {
// https://www.w3.org/TR/webauthn-2/#sctn-createCredential (Step 5)
return new WebAuthnError({
message: 'User ID was not between 1 and 64 characters',
code: 'ERROR_INVALID_USER_ID_LENGTH',
cause: error,
});
}
} else if (error.name === 'UnknownError') {
// https://www.w3.org/TR/webauthn-2/#sctn-op-make-cred (Step 1)
// https://www.w3.org/TR/webauthn-2/#sctn-op-make-cred (Step 8)
return new WebAuthnError({
message: 'The authenticator was unable to process the specified options, or could not create a new credential',
code: 'ERROR_AUTHENTICATOR_GENERAL_ERROR',
cause: error,
});
}
return error;
}
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