keycloak_theme/src/login/pages/WebauthnAuthenticate.tsx
2023-03-21 05:27:31 +01:00

193 lines
10 KiB
TypeScript

import { useRef, useState } from "react";
import { clsx } from "keycloakify/tools/clsx";
import type { MessageKey } from "keycloakify/login/i18n/i18n";
import { base64url } from "rfc4648";
import { useConstCallback } from "keycloakify/tools/useConstCallback";
import type { PageProps } from "keycloakify/login/pages/PageProps";
import { useGetClassName } from "keycloakify/login/lib/useGetClassName";
import type { KcContext } from "../kcContext";
import type { I18n } from "../i18n";
export default function WebauthnAuthenticate(props: PageProps<Extract<KcContext, { pageId: "webauthn-authenticate.ftl" }>, I18n>) {
const { kcContext, i18n, doUseDefaultCss, Template, classes } = props;
const { getClassName } = useGetClassName({ doUseDefaultCss, classes });
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, doUseDefaultCss, classes }} headerNode={msg("webauthn-login-title")}>
<div id="kc-form-webauthn" className={getClassName("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={getClassName("kcFormGroupClass")}>
{authenticators &&
(() => (
<form id="authn_select" className={getClassName("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={getClassName("kcSelectAuthListItemTitle")}>{msg("webauthn-available-authenticators")}</p>
)}
<div className={getClassName("kcFormClass")}>
{authenticators.authenticators.map(authenticator => (
<div id="kc-webauthn-authenticator" className={getClassName("kcSelectAuthListItemClass")}>
<div className={getClassName("kcSelectAuthListItemIconClass")}>
<i
className={clsx(
(() => {
const className = getClassName(authenticator.transports.iconClass as any);
return className.includes(" ")
? className
: [className, getClassName("kcWebAuthnDefaultIcon")];
})(),
getClassName("kcSelectAuthListItemIconPropertyClass")
)}
/>
</div>
<div className={getClassName("kcSelectAuthListItemBodyClass")}>
<div
id="kc-webauthn-authenticator-label"
className={getClassName("kcSelectAuthListItemHeadingClass")}
>
{authenticator.label}
</div>
{authenticator.transports && authenticator.transports.displayNameProperties.length && (
<div
id="kc-webauthn-authenticator-transport"
className={getClassName("kcSelectAuthListItemDescriptionClass")}
>
{authenticator.transports.displayNameProperties.map(
(transport: MessageKey, index: number) => (
<>
<span>{msg(transport)}</span>
{index < authenticator.transports.displayNameProperties.length - 1 && (
<span>{", "}</span>
)}
</>
)
)}
</div>
)}
<div className={getClassName("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={getClassName("kcSelectAuthListItemFillClass")} />
</div>
))}
</div>
</>
))()}
<div id="kc-form-buttons" className={getClassName("kcFormButtonsClass")}>
<input
id="authenticateWebAuthnButton"
type="button"
onClick={webAuthnAuthenticate}
autoFocus={true}
value={msgStr("webauthn-doAuthenticate")}
className={clsx(
getClassName("kcButtonClass"),
getClassName("kcButtonPrimaryClass"),
getClassName("kcButtonBlockClass"),
getClassName("kcButtonLargeClass")
)}
/>
</div>
</div>
</div>
</Template>
);
}