oidc-provider/lib/models/mixins/has_format.js

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

import instance from '../../helpers/weak_cache.js';
import formatsGenerator from '../formats/index.js';

const DEFAULT = 'opaque';

function AccessTokenFormat(ctx, token) {
  return token.resourceServer?.accessTokenFormat ?? 'opaque';
}

export default (provider, type, superclass) => {
  const formats = formatsGenerator(provider);

  let FORMAT;
  if (type === 'AccessToken' || type === 'ClientCredentials') {
    FORMAT = AccessTokenFormat;
  } else {
    FORMAT = DEFAULT;
  }

  if (FORMAT !== DEFAULT || type === 'base') {
    const dynamic = typeof FORMAT === 'function';
    if (!dynamic) {
      if (!formats[FORMAT]) throw new TypeError(`unsupported format specified (${FORMAT})`);
      if (FORMAT === 'dynamic') throw new TypeError('dynamic format must be configured as a function');
    }

    const {
      generateTokenId,
      getValueAndPayload,
    } = formats[dynamic ? 'dynamic' : FORMAT];

    const klass = class extends superclass {};
    klass.prototype.generateTokenId = generateTokenId;
    klass.prototype.getValueAndPayload = getValueAndPayload;
    klass.prototype.constructor.verify = formats.opaque.verify;

    if (dynamic) {
      instance(provider).dynamic ||= {};
      instance(provider).dynamic[type] = FORMAT;
    }

    return klass;
  }

  return superclass;
};