| /** |
| * @license |
| * Copyright 2020 Google LLC |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| // This file adds some simple checks to match internal Google rules. |
| // Internally at Google it has different a implementation. |
| |
| import {BrandType} from '../types/common'; |
| export {sanitizeHtml, htmlEscape, sanitizeHtmlToFragment} from 'safevalues'; |
| |
| export type SafeStyleSheet = BrandType<string, '_safeHtml'>; |
| |
| export function safeStyleSheet( |
| templateObj: TemplateStringsArray |
| ): SafeStyleSheet { |
| const styleSheet = templateObj[0]; |
| if (/[<>]/.test(styleSheet)) { |
| throw new Error('Forbidden characters in styleSheet string: ' + styleSheet); |
| } |
| return styleSheet as SafeStyleSheet; |
| } |
| |
| export function setStyleTextContent( |
| elem: HTMLStyleElement, |
| safeStyleSheet: SafeStyleSheet |
| ) { |
| elem.textContent = safeStyleSheet; |
| } |
