shadowdaoandClaude Sonnet 4.6
bd15a33984
Closes XSS hole in HtmlBlock by sanitizing user/AI-supplied markup through DOMPurify before passing to dangerouslySetInnerHTML. Adds Vitest + jsdom for unit testing with 5 passing tests covering script stripping, on-event handler removal, javascript: URL blocking, iframe allowlist, and form/input stripping. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
24 lines
918 B
TypeScript
24 lines
918 B
TypeScript
import { describe, test, expect } from 'vitest';
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import { purifyHtml } from './HtmlBlock';
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describe('purifyHtml', () => {
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test('strips script tags', () => {
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expect(purifyHtml('<p>ok</p><script>alert(1)</script>')).not.toContain('<script');
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});
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test('strips on-event handlers', () => {
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const out = purifyHtml('<a onclick="bad()" href="/x">x</a>');
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expect(out).not.toContain('onclick');
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expect(out).toContain('href="/x"');
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});
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test('blocks javascript: URLs', () => {
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expect(purifyHtml('<a href="javascript:void(0)">x</a>')).not.toContain('javascript:');
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});
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test('allows YouTube iframe', () => {
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const out = purifyHtml('<iframe src="https://www.youtube.com/embed/abc" allowfullscreen></iframe>');
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expect(out).toContain('youtube.com/embed/abc');
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});
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test('strips form/input', () => {
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expect(purifyHtml('<form><input name="x"></form>')).not.toContain('<form');
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});
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});
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