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Change katex limits (#27823) (#27868) 

Backport #27823 by @KN4CK3R

Fixes #27812

Use higher defaults again but limit the input size.


![grafik](https://github.com/go-gitea/gitea/assets/1666336/23cdf572-de30-4799-b9cf-ef386b1623b9)

Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
This commit is contained in:
Giteabot 2023-11-02 05:26:45 +08:00 committed by GitHub
parent 352906b448
commit 39596115da
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1 changed files with 12 additions and 2 deletions
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14
web_src/js/markup/math.js
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@ -15,18 +15,28 @@ export async function renderMath() {
import(/* webpackChunkName: "katex" */'katex/dist/katex.css'), import(/* webpackChunkName: "katex" */'katex/dist/katex.css'),
]); ]);
const MAX_CHARS = 1000;
const MAX_SIZE = 25;
const MAX_EXPAND = 1000;
for (const el of els) { for (const el of els) {
const target = targetElement(el); const target = targetElement(el);
if (target.hasAttribute('data-render-done')) continue; if (target.hasAttribute('data-render-done')) continue;
const source = el.textContent; const source = el.textContent;
if (source.length > MAX_CHARS) {
displayError(target, new Error(`Math source of ${source.length} characters exceeds the maximum allowed length of ${MAX_CHARS}.`));
continue;
}
const displayMode = el.classList.contains('display'); const displayMode = el.classList.contains('display');
const nodeName = displayMode ? 'p' : 'span'; const nodeName = displayMode ? 'p' : 'span';
try { try {
const tempEl = document.createElement(nodeName); const tempEl = document.createElement(nodeName);
katex.render(source, tempEl, { katex.render(source, tempEl, {
maxSize: 25, maxSize: MAX_SIZE,
maxExpand: 50, maxExpand: MAX_EXPAND,
displayMode, displayMode,
}); });
target.replaceWith(tempEl); target.replaceWith(tempEl);