@strongnguyen/oidc-provider/lib/actions/authorization/check_requested_expiry.js

OAuth 2.0 Authorization Server implementation for Node.js with OpenID Connect

const { InvalidRequest } = require('../../helpers/errors');

/*
 * Validates the requested_expiry parameter
 *
 * @throws: invalid_request
 */
module.exports = function checkRequestedExpiry(ctx, next) {
  if (ctx.oidc.params.requested_expiry !== undefined) {
    const requestedExpiry = +ctx.oidc.params.requested_expiry;

    if (!Number.isSafeInteger(requestedExpiry) || Math.sign(requestedExpiry) !== 1) {
      throw new InvalidRequest('invalid requested_expiry parameter value');
    }
  }

  return next();
};