util.js (1628B)
1 /* 2 GoToSocial 3 Copyright (C) GoToSocial Authors admin@gotosocial.org 4 SPDX-License-Identifier: AGPL-3.0-or-later 5 6 This program is free software: you can redistribute it and/or modify 7 it under the terms of the GNU Affero General Public License as published by 8 the Free Software Foundation, either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU Affero General Public License for more details. 15 16 You should have received a copy of the GNU Affero General Public License 17 along with this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 "use strict"; 21 22 const React = require("react"); 23 const RoleContext = React.createContext([]); 24 const BaseUrlContext = React.createContext(null); 25 26 function urlSafe(str) { 27 return str.toLowerCase().replace(/[\s/]+/g, "-"); 28 } 29 30 function useHasPermission(permissions) { 31 const roles = React.useContext(RoleContext); 32 return checkPermission(permissions, roles); 33 } 34 35 function checkPermission(requiredPermissisons, user) { 36 // requiredPermissions can be 'false', in which case there are no restrictions 37 if (requiredPermissisons === false) { 38 return true; 39 } 40 41 // or an array of roles, check if one of the user's roles is sufficient 42 return user.some((role) => requiredPermissisons.includes(role)); 43 } 44 45 function useBaseUrl() { 46 return React.useContext(BaseUrlContext); 47 } 48 49 module.exports = { 50 urlSafe, RoleContext, useHasPermission, checkPermission, BaseUrlContext, useBaseUrl 51 };