Refactor auth logic.

lib/auth.js

@@ -1,10 +1,10 @@
 import { validate } from 'uuid';
-import { parseSecureToken, parseToken, getItem } from 'next-basics';
-import { AUTH_TOKEN, SHARE_TOKEN_HEADER } from './constants';
+import { parseSecureToken, parseToken } from 'next-basics';
 import { getWebsite } from 'queries';
-import { secret } from './crypto';
+import { SHARE_TOKEN_HEADER } from 'lib/constants';
+import { secret } from 'lib/crypto';
 
-export async function getAuthToken(req) {
+export function getAuthToken(req) {
   try {
     const token = req.headers.authorization;
 
@@ -14,13 +14,15 @@ export async function getAuthToken(req) {
   }
 }
 
-export function getAuthHeader() {
-  const token = getItem(AUTH_TOKEN);
-
-  return token ? { authorization: `Bearer ${token}` } : {};
+export function getShareToken(req) {
+  try {
+    return parseSecureToken(req.headers[SHARE_TOKEN_HEADER], secret());
+  } catch {
+    return null;
+  }
 }
 
-export async function isValidToken(token, validation) {
+export function isValidToken(token, validation) {
   try {
     const result = parseToken(token, secret());