keycloak_theme/src/lib/components/WebauthnAuthenticate.tsx
2022-10-16 00:49:49 +02:00

204 lines
11 KiB
TypeScript

import React, { useRef, useState, memo } from "react";
import DefaultTemplate from "./Template";
import type { TemplateProps } from "./Template";
import type { KcProps } from "./KcProps";
import type { KcContextBase } from "../getKcContext/KcContextBase";
import { clsx } from "../tools/clsx";
import type { I18n, MessageKeyBase } from "../i18n";
import { base64url } from "rfc4648";
import { useConstCallback } from "powerhooks/useConstCallback";
export type WebauthnAuthenticateProps = KcProps & {
kcContext: KcContextBase.WebauthnAuthenticate;
i18n: I18n;
doFetchDefaultThemeResources?: boolean;
Template?: (props: TemplateProps) => JSX.Element | null;
};
const WebauthnAuthenticate = memo((props: WebauthnAuthenticateProps) => {
const { kcContext, i18n, doFetchDefaultThemeResources = true, Template = DefaultTemplate, ...kcProps } = props;
const { url } = kcContext;
const { msg, msgStr } = i18n;
const { authenticators, challenge, shouldDisplayAuthenticators, userVerification, rpId } = kcContext;
const createTimeout = Number(kcContext.createTimeout);
const isUserIdentified = kcContext.isUserIdentified == "true";
const webAuthnAuthenticate = useConstCallback(async () => {
if (!isUserIdentified) {
return;
}
const allowCredentials = authenticators.authenticators.map(
authenticator =>
({
id: base64url.parse(authenticator.credentialId, { loose: true }),
type: "public-key"
} as PublicKeyCredentialDescriptor)
);
// Check if WebAuthn is supported by this browser
if (!window.PublicKeyCredential) {
setError(msgStr("webauthn-unsupported-browser-text"));
submitForm();
return;
}
const publicKey: PublicKeyCredentialRequestOptions = {
rpId,
challenge: base64url.parse(challenge, { loose: true })
};
if (createTimeout !== 0) {
publicKey.timeout = createTimeout * 1000;
}
if (allowCredentials.length) {
publicKey.allowCredentials = allowCredentials;
}
if (userVerification !== "not specified") {
publicKey.userVerification = userVerification;
}
try {
const resultRaw = await navigator.credentials.get({ publicKey });
if (!resultRaw || resultRaw.type != "public-key") return;
const result = resultRaw as PublicKeyCredential;
if (!("authenticatorData" in result.response)) return;
const response = result.response as AuthenticatorAssertionResponse;
const clientDataJSON = response.clientDataJSON;
const authenticatorData = response.authenticatorData;
const signature = response.signature;
setClientDataJSON(base64url.stringify(new Uint8Array(clientDataJSON), { pad: false }));
setAuthenticatorData(base64url.stringify(new Uint8Array(authenticatorData), { pad: false }));
setSignature(base64url.stringify(new Uint8Array(signature), { pad: false }));
setCredentialId(result.id);
setUserHandle(base64url.stringify(new Uint8Array(response.userHandle!), { pad: false }));
submitForm();
} catch (err) {
setError(String(err));
submitForm();
}
});
const webAuthForm = useRef<HTMLFormElement>(null);
const submitForm = useConstCallback(() => {
webAuthForm.current!.submit();
});
const [clientDataJSON, setClientDataJSON] = useState("");
const [authenticatorData, setAuthenticatorData] = useState("");
const [signature, setSignature] = useState("");
const [credentialId, setCredentialId] = useState("");
const [userHandle, setUserHandle] = useState("");
const [error, setError] = useState("");
return (
<Template
{...{ kcContext, i18n, doFetchDefaultThemeResources, ...kcProps }}
headerNode={msg("webauthn-login-title")}
formNode={
<div id="kc-form-webauthn" className={clsx(kcProps.kcFormClass)}>
<form id="webauth" action={url.loginAction} ref={webAuthForm} method="post">
<input type="hidden" id="clientDataJSON" name="clientDataJSON" value={clientDataJSON} />
<input type="hidden" id="authenticatorData" name="authenticatorData" value={authenticatorData} />
<input type="hidden" id="signature" name="signature" value={signature} />
<input type="hidden" id="credentialId" name="credentialId" value={credentialId} />
<input type="hidden" id="userHandle" name="userHandle" value={userHandle} />
<input type="hidden" id="error" name="error" value={error} />
</form>
<div className={clsx(kcProps.kcFormGroupClass)}>
{authenticators &&
(() => (
<form id="authn_select" className={clsx(kcProps.kcFormClass)}>
{authenticators.authenticators.map(authenticator => (
<input
type="hidden"
name="authn_use_chk"
value={authenticator.credentialId}
key={authenticator.credentialId}
/>
))}
</form>
))()}
{authenticators &&
shouldDisplayAuthenticators &&
(() => (
<>
{authenticators.authenticators.length > 1 && (
<p className={clsx(kcProps.kcSelectAuthListItemTitle)}>{msg("webauthn-available-authenticators")}</p>
)}
<div className={clsx(kcProps.kcFormClass)}>
{authenticators.authenticators.map(authenticator => (
<div id="kc-webauthn-authenticator" className={clsx(kcProps.kcSelectAuthListItemClass)}>
<div className={clsx(kcProps.kcSelectAuthListItemIconClass)}>
<i
className={clsx(
kcProps[authenticator.transports.iconClass] ?? kcProps.kcWebAuthnDefaultIcon,
kcProps.kcSelectAuthListItemIconPropertyClass
)}
/>
</div>
<div className={clsx(kcProps.kcSelectAuthListItemBodyClass)}>
<div
id="kc-webauthn-authenticator-label"
className={clsx(kcProps.kcSelectAuthListItemHeadingClass)}
>
{authenticator.label}
</div>
{authenticator.transports && authenticator.transports.displayNameProperties.length && (
<div
id="kc-webauthn-authenticator-transport"
className={clsx(kcProps.kcSelectAuthListItemDescriptionClass)}
>
{authenticator.transports.displayNameProperties.map(
(transport: MessageKeyBase, index: number) => (
<>
<span>{msg(transport)}</span>
{index < authenticator.transports.displayNameProperties.length - 1 && (
<span>{", "}</span>
)}
</>
)
)}
</div>
)}
<div className={clsx(kcProps.kcSelectAuthListItemDescriptionClass)}>
<span id="kc-webauthn-authenticator-created-label">{msg("webauthn-createdAt-label")}</span>
<span id="kc-webauthn-authenticator-created">{authenticator.createdAt}</span>
</div>
</div>
<div className={clsx(kcProps.kcSelectAuthListItemFillClass)} />
</div>
))}
</div>
</>
))()}
<div id="kc-form-buttons" className={clsx(kcProps.kcFormButtonsClass)}>
<input
id="authenticateWebAuthnButton"
type="button"
onClick={webAuthnAuthenticate}
autoFocus={true}
value={msgStr("webauthn-doAuthenticate")}
className={clsx(
kcProps.kcButtonClass,
kcProps.kcButtonPrimaryClass,
kcProps.kcButtonBlockClass,
kcProps.kcButtonLargeClass
)}
/>
</div>
</div>
</div>
}
/>
);
});
export default WebauthnAuthenticate;