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refactor: one authoritave source for allowed html tags

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This commit is contained in:
maphew
2024-11-18 19:52:31 -07:00
parent 8574d2b143
commit cc98a16246
2 changed files with 23 additions and 32 deletions
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29
src/services/html_sanitizer.ts
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@@ -2,6 +2,21 @@ import sanitizeHtml from "sanitize-html";
import sanitizeUrl from "@braintree/sanitize-url";
import optionService from "./options.js";
// Default list of allowed HTML tags
export const DEFAULT_ALLOWED_TAGS = [
'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'blockquote', 'p', 'a', 'ul', 'ol',
'li', 'b', 'i', 'strong', 'em', 'strike', 's', 'del', 'abbr', 'code', 'hr', 'br', 'div',
'table', 'thead', 'caption', 'tbody', 'tfoot', 'tr', 'th', 'td', 'pre', 'section', 'img',
'figure', 'figcaption', 'span', 'label', 'input', 'details', 'summary', 'address', 'aside', 'footer',
'header', 'hgroup', 'main', 'nav', 'dl', 'dt', 'menu', 'bdi', 'bdo', 'dfn', 'kbd', 'mark', 'q', 'time',
'var', 'wbr', 'area', 'map', 'track', 'video', 'audio', 'picture', 'del', 'ins',
'en-media', // for ENEX import
// Additional tags (https://github.com/TriliumNext/Notes/issues/567)
'acronym', 'article', 'big', 'button', 'cite', 'col', 'colgroup', 'data', 'dd',
'fieldset', 'form', 'legend', 'meter', 'noscript', 'option', 'progress', 'rp',
'samp', 'small', 'sub', 'sup', 'template', 'textarea', 'tt'
] as const;
// intended mainly as protection against XSS via import
// secondarily, it (partly) protects against "CSS takeover"
// sanitize also note titles, label values etc. - there are so many usages which make it difficult
@@ -30,19 +45,7 @@ function sanitize(dirtyHtml: string) {
allowedTags = JSON.parse(optionService.getOption('allowedHtmlTags'));
} catch (e) {
// Fallback to default list if option doesn't exist or is invalid
allowedTags = [
'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'blockquote', 'p', 'a', 'ul', 'ol',
'li', 'b', 'i', 'strong', 'em', 'strike', 's', 'del', 'abbr', 'code', 'hr', 'br', 'div',
'table', 'thead', 'caption', 'tbody', 'tfoot', 'tr', 'th', 'td', 'pre', 'section', 'img',
'figure', 'figcaption', 'span', 'label', 'input', 'details', 'summary', 'address', 'aside', 'footer',
'header', 'hgroup', 'main', 'nav', 'dl', 'dt', 'menu', 'bdi', 'bdo', 'dfn', 'kbd', 'mark', 'q', 'time',
'var', 'wbr', 'area', 'map', 'track', 'video', 'audio', 'picture', 'del', 'ins',
'en-media', // for ENEX import
// Additional tags (https://github.com/TriliumNext/Notes/issues/567)
'acronym', 'article', 'big', 'button', 'cite', 'col', 'colgroup', 'data', 'dd',
'fieldset', 'form', 'legend', 'meter', 'noscript', 'option', 'progress', 'rp',
'samp', 'small', 'sub', 'sup', 'template', 'textarea', 'tt'
];
allowedTags = DEFAULT_ALLOWED_TAGS;
}
// to minimize document changes, compress H