Switch to json web tokens.

lib/utils.js

@@ -1,9 +1,8 @@
 import requestIp from 'request-ip';
 import { browserName, detectOS } from 'detect-browser';
+import isLocalhost from 'is-localhost-ip';
 import maxmind from 'maxmind';
 import geolite2 from 'geolite2-redist';
-import isLocalhost from 'is-localhost-ip';
-import { hash } from './crypto';
 
 export function getIpAddress(req) {
   // Cloudflare
@@ -44,20 +43,3 @@ export async function getCountry(req, ip) {
 
   return result.country.iso_code;
 }
-
-export function parseSession(session) {
-  const [website_id, website_uuid, session_id, session_uuid, sig] = (session || '').split(':');
-  return {
-    website_id: parseInt(website_id),
-    website_uuid,
-    session_id: parseInt(session_id),
-    session_uuid,
-    sig,
-  };
-}
-
-export function isValidSession(session) {
-  const { website_id, website_uuid, session_id, session_uuid, sig } = parseSession(session);
-
-  return hash(website_id, website_uuid, session_id, session_uuid) === sig;
-}