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import { group } from "mitata";
import { bench, run } from "mitata";
import { encode as htmlEntityEncode } from "html-entities";
import { escape as heEscape } from "he";
var bunEscapeHTML_ = globalThis.escapeHTML || Bun.escapeHTML;
var bunEscapeHTML = bunEscapeHTML_;
const matchHtmlRegExp = /["'&<>]/;
/**
* Escapes special characters and HTML entities in a given html string.
*
* @param {string} string HTML string to escape for later insertion
* @return {string}
* @public
*/
const FIXTURE = require("fs")
.readFileSync(import.meta.dir + "/_fixture.txt", "utf8")
.split("")
.map((a) => {
if (a.charCodeAt(0) > 127) {
return "a";
}
return a;
})
.join("");
const FIXTURE_WITH_UNICODE = require("fs").readFileSync(
import.meta.dir + "/_fixture.txt",
"utf8"
);
function reactEscapeHtml(string) {
const str = "" + string;
const match = matchHtmlRegExp.exec(str);
if (!match) {
return str;
}
let escape;
let html = "";
let index;
let lastIndex = 0;
for (index = match.index; index < str.length; index++) {
switch (str.charCodeAt(index)) {
case 34: // "
escape = """;
break;
case 38: // &
escape = "&";
break;
case 39: // '
escape = "'"; // modified from escape-html; used to be '''
break;
case 60: // <
escape = "<";
break;
case 62: // >
escape = ">";
break;
default:
continue;
}
if (lastIndex !== index) {
html += str.substring(lastIndex, index);
}
lastIndex = index + 1;
html += escape;
}
return lastIndex !== index ? html + str.substring(lastIndex, index) : html;
}
for (let input of [
"<script>alert('xss')</script>",
`long string, nothing to escape... `.repeat(9999),
`long utf16 string, no esc 🤔🤔🤔🤔🤔` + "tex".repeat(4000),
`smol`,
// `medium string with <script>alert('xss')</script>`,
FIXTURE,
// "[unicode]" + FIXTURE_WITH_UNICODE,
]) {
group(
{
summary: true,
name:
`"` +
input.substring(0, Math.min(input.length, 32)) +
`"` +
` (${input.length} chars)`,
},
() => {
bench(`ReactDOM.escapeHTML`, () => reactEscapeHtml(input));
bench(`html-entities.encode`, () => htmlEntityEncode(input));
bench(`he.escape`, () => heEscape(input));
bench(`Bun.escapeHTML`, () => bunEscapeHTML(input));
}
);
}
await run();
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