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Replace helpers.linkRe with helpers.forEachLink to fix "Polynomial regular expression used on uncontrolled data" and to better support link syntax.

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This commit is contained in:
David Anson 2022-02-18 21:14:14 -08:00
parent 861443c740
commit 7a53caa7fb
4 changed files with 458 additions and 28 deletions
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9
lib/md044.js
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@ -3,7 +3,7 @@
"use strict";
const { addErrorDetailIf, bareUrlRe, escapeForRegExp, forEachLine,
overlapsAnyRange, linkRe, linkReferenceRe } = require("../helpers");
forEachLink, overlapsAnyRange, linkReferenceRe } = require("../helpers");
const { codeBlockAndSpanRanges, lineMetadata } = require("./cache");
module.exports = {
@ -25,14 +25,13 @@ module.exports = {
while ((match = bareUrlRe.exec(line)) !== null) {
exclusions.push([ lineIndex, match.index, match[0].length ]);
}
while ((match = linkRe.exec(line)) !== null) {
const [ , text, destination ] = match;
forEachLink(line, (index, _, text, destination) => {
if (destination) {
exclusions.push(
[ lineIndex, match.index + text.length, destination.length ]
[ lineIndex, index + text.length, destination.length ]
);
}
}
});
}
});
if (!includeCodeBlocks) {