79 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			79 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import { isEmpty } from 'lodash';
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import { getUserById as _getUserById } from '../utils/user-stats';
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import {
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  getAccessTokenFromRequest,
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  errorTypes,
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  authHeaderNS
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} from '../utils/getSetAccessToken';
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import { homeLocation } from '../../../config/env';
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import { jwtSecret as _jwtSecret } from '../../../config/secrets';
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import { wrapHandledError } from '../utils/create-handled-error';
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// We need to tunnel through a proxy path set up within
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// the gatsby app, at this time, that path is /internal
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const apiProxyRE = /^\/internal\/|^\/external\//;
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const newsShortLinksRE = /^\/internal\/n\/|^\/internal\/p\?/;
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const loopbackAPIPathRE = /^\/internal\/api\//;
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const _whiteListREs = [newsShortLinksRE, loopbackAPIPathRE];
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export function isWhiteListedPath(path, whiteListREs = _whiteListREs) {
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  return whiteListREs.some(re => re.test(path));
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}
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export default ({ jwtSecret = _jwtSecret, getUserById = _getUserById } = {}) =>
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  function requestAuthorisation(req, res, next) {
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    const { path } = req;
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    if (apiProxyRE.test(path) && !isWhiteListedPath(path)) {
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      const { accessToken, error, jwt } = getAccessTokenFromRequest(
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        req,
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        jwtSecret
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      );
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      if (!accessToken && error === errorTypes.noTokenFound) {
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        throw wrapHandledError(
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          new Error('Access token is required for this request'),
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          {
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            type: 'info',
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            redirect: `${homeLocation}/signin`,
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            message: 'Access token is required for this request',
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            status: 403
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          }
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        );
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      }
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      if (!accessToken && error === errorTypes.invalidToken) {
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        throw wrapHandledError(new Error('Access token is invalid'), {
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          type: 'info',
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          redirect: `${homeLocation}/signin`,
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          message: 'Your access token is invalid',
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          status: 403
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        });
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      }
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      if (!accessToken && error === errorTypes.expiredToken) {
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        throw wrapHandledError(new Error('Access token is no longer vaild'), {
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          type: 'info',
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          redirect: `${homeLocation}/signin`,
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          message: 'Access token is no longer vaild',
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          status: 403
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        });
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      }
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      res.set(authHeaderNS, jwt);
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      if (isEmpty(req.user)) {
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        const { userId } = accessToken;
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        return getUserById(userId)
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          .then(user => {
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            if (user) {
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              req.user = user;
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            }
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            return;
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          })
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          .then(next)
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          .catch(next);
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      } else {
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        return Promise.resolve(next());
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      }
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    }
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    return Promise.resolve(next());
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  };
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