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cinny/src/client/oidcLogout.ts
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import { discoverAndValidateOIDCIssuerWellKnown } from 'matrix-js-sdk';
import { Session } from '../app/state/sessions';
/**
* Best-effort revoke the OIDC access + refresh tokens at the issuer's revocation
* endpoint during logout. Tolerant of any failure — logout proceeds regardless
* (the local session is cleared by the caller either way).
*/
export const revokeOidcTokens = async (session: Session): Promise<void> => {
if (!session.oidc) return;
try {
const config = await discoverAndValidateOIDCIssuerWellKnown(session.oidc.issuer);
const endpoint = config.revocation_endpoint;
if (!endpoint) return;
const { clientId } = session.oidc;
const revoke = (token: string, hint: string): Promise<Response> =>
fetch(endpoint, {
method: 'POST',
headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
body: new URLSearchParams({ token, token_type_hint: hint, client_id: clientId }),
});
const requests: Promise<Response>[] = [];
if (session.refreshToken) requests.push(revoke(session.refreshToken, 'refresh_token'));
if (session.accessToken) requests.push(revoke(session.accessToken, 'access_token'));
await Promise.allSettled(requests);
} catch {
/* issuer unreachable / no revocation endpoint — ignore */
}
};