refactor: move auth tools to separate location at root

web/frontend/src/pages/form/components/ActionButtons/AddVotersButton.tsx

@@ -1,6 +1,6 @@
 import { DocumentAddIcon } from '@heroicons/react/outline';
 import { useTranslation } from 'react-i18next';
-import { isManager } from './utils';
+import { isManager } from './../../../../utils/auth';
 import { AuthContext } from 'index';
 import { useContext } from 'react';
 

web/frontend/src/pages/form/components/ActionButtons/CancelButton.tsx

@@ -4,7 +4,7 @@ import { useContext } from 'react';
 import { useTranslation } from 'react-i18next';
 import { OngoingAction, Status } from 'types/form';
 import ActionButton from './ActionButton';
-import { isManager } from './utils';
+import { isManager } from './../../../../utils/auth';
 
 const CancelButton = ({ status, handleCancel, ongoingAction, formID }) => {
   const { authorization, isLogged } = useContext(AuthContext);

web/frontend/src/pages/form/components/ActionButtons/CloseButton.tsx

@@ -4,7 +4,7 @@ import { useContext } from 'react';
 import { useTranslation } from 'react-i18next';
 import { OngoingAction, Status } from 'types/form';
 import ActionButton from './ActionButton';
-import { isManager } from './utils';
+import { isManager } from './../../../../utils/auth';
 
 const CloseButton = ({ status, handleClose, ongoingAction, formID }) => {
   const { authorization, isLogged } = useContext(AuthContext);

web/frontend/src/pages/form/components/ActionButtons/CombineButton.tsx

@@ -4,7 +4,7 @@ import { useContext } from 'react';
 import { useTranslation } from 'react-i18next';
 import { OngoingAction, Status } from 'types/form';
 import ActionButton from './ActionButton';
-import { isManager } from './utils';
+import { isManager } from './../../../../utils/auth';
 
 const CombineButton = ({ status, handleCombine, ongoingAction, formID }) => {
   const { t } = useTranslation();

web/frontend/src/pages/form/components/ActionButtons/DecryptButton.tsx

@@ -4,7 +4,7 @@ import { useContext } from 'react';
 import { useTranslation } from 'react-i18next';
 import { OngoingAction, Status } from 'types/form';
 import ActionButton from './ActionButton';
-import { isManager } from './utils';
+import { isManager } from './../../../../utils/auth';
 
 const DecryptButton = ({ status, handleDecrypt, ongoingAction, formID }) => {
   const { authorization, isLogged } = useContext(AuthContext);

web/frontend/src/pages/form/components/ActionButtons/DeleteButton.tsx

@@ -2,7 +2,7 @@ import { TrashIcon } from '@heroicons/react/outline';
 import { AuthContext } from 'index';
 import { useContext } from 'react';
 import { useTranslation } from 'react-i18next';
-import { isManager } from './utils';
+import { isManager } from './../../../../utils/auth';
 
 const DeleteButton = ({ handleDelete, formID }) => {
   const { t } = useTranslation();

web/frontend/src/pages/form/components/ActionButtons/InitializeButton.tsx

@@ -4,7 +4,7 @@ import { useContext } from 'react';
 import { useTranslation } from 'react-i18next';
 import { OngoingAction, Status } from 'types/form';
 import ActionButton from './ActionButton';
-import { isManager } from './utils';
+import { isManager } from './../../../../utils/auth';
 
 const InitializeButton = ({ status, handleInitialize, ongoingAction, formID }) => {
   const { authorization, isLogged } = useContext(AuthContext);

web/frontend/src/pages/form/components/ActionButtons/OpenButton.tsx

@@ -4,7 +4,7 @@ import { useContext } from 'react';
 import { useTranslation } from 'react-i18next';
 import { OngoingAction, Status } from 'types/form';
 import ActionButton from './ActionButton';
-import { isManager } from './utils';
+import { isManager } from './../../../../utils/auth';
 
 const OpenButton = ({ status, handleOpen, ongoingAction, formID }) => {
   const { t } = useTranslation();

web/frontend/src/pages/form/components/ActionButtons/SetupButton.tsx

@@ -4,7 +4,7 @@ import { useContext } from 'react';
 import { useTranslation } from 'react-i18next';
 import { OngoingAction, Status } from 'types/form';
 import ActionButton from './ActionButton';
-import { isManager } from './utils';
+import { isManager } from './../../../../utils/auth';
 
 const SetupButton = ({ status, handleSetup, ongoingAction, formID }) => {
   const { t } = useTranslation();

web/frontend/src/pages/form/components/ActionButtons/ShuffleButton.tsx

@@ -4,7 +4,7 @@ import { useContext } from 'react';
 import { useTranslation } from 'react-i18next';
 import { OngoingAction, Status } from 'types/form';
 import ActionButton from './ActionButton';
-import { isManager } from './utils';
+import { isManager } from './../../../../utils/auth';
 
 const ShuffleButton = ({ status, handleShuffle, ongoingAction, formID }) => {
   const { t } = useTranslation();

web/frontend/src/pages/form/components/ActionButtons/utils.tsx → web/frontend/src/utils/auth.ts

@@ -1,4 +1,4 @@
-import { ID } from './../../../../types/configuration';
+import { ID } from './../types/configuration';
 
 export function isManager(formID: ID, authorization: Map<String, String[]>, isLogged: boolean) {
   return (
@@ -9,3 +9,11 @@ export function isManager(formID: ID, authorization: Map<String, String[]>, isLo
     authorization.get(formID).includes('own') // must own the election
   );
 }
+
+export function isVoter(formID: ID, authorization: Map<String, String[]>, isLogged: boolean) {
+  return (
+    isLogged && // must be logged in
+    authorization.has(formID) &&
+    authorization.get(formID).includes('vote') // must be able to vote in the election
+  );
+}