Created
November 26, 2017 20:18
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| const alph = [ | |
| 'a', '\'', '"', '&', '<', '>', '<!', '<!-', '<!--', ' ', '-', '--', '-->', '</script', '<script>', '/', '\\', | |
| '< /script', '</ script', '< script>', '"', '"', '<', '<', '>', '>' | |
| ] | |
| const randint = (min, max) => parseInt(Math.random() * (max - min)) + min | |
| const randletter = () => alph[randint(0, alph.length)] | |
| const html4 = '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">' | |
| let frames = Array.prototype.slice.call(document.querySelectorAll('iframe')) | |
| // 100 test runs | |
| for (let i = 0; i < 100; ++i) { | |
| if (i % 100 === 0) console.log(i) | |
| const n = randint(1, 10) | |
| // concatenation of 1-10 "letters" per run | |
| const content = [] | |
| for (let j = 0; j < n; ++j) { | |
| const l = randletter() | |
| if (l.length > 1 && randint(0, 10) === 0) { | |
| // Sometimes also insert random inside multi-letter "letters", i.e. | |
| // </script --> <a/script | |
| const splitPos = randint(0, l.length) | |
| content.push(l.substring(0, splitPos) + randletter() + l.substring(splitPos + 1)) | |
| } else { | |
| content.push(l) | |
| } | |
| } | |
| // " replaced because of <script type=text/javascript> cross-test; | |
| // remove if only testing <script type=application/js> | |
| const contentj = content.join('').replace(/</g, '\\u003C').replace(/"/g, '') | |
| if (contentj.endsWith('\\')) { | |
| // Can't cross test these with <script type=text/javascript> tags because they escape the trailing " | |
| continue | |
| } | |
| const html = [ | |
| `<script id="test" type="application/json">${contentj}</script>`, | |
| `<script id="test" type="text/javascript">"${contentj}"</script>` | |
| ] | |
| // Recreate iframes | |
| const frames2 = frames.map(() => document.createElement('iframe')) | |
| frames.map((f, i) => f.replaceWith(frames2[i])) | |
| frames = frames2 | |
| frames.map((f, i) => f.contentDocument.write(html4 + html[i])) | |
| const actual0 = frames[0].contentDocument.querySelector('#test').textContent | |
| const actual1 = frames[1].contentDocument.querySelector('#test').textContent | |
| if (actual0 !== contentj) { | |
| console.log([0, contentj, actual0]) | |
| } | |
| if (actual1 !== `"${contentj}"`) { | |
| console.log([1, contentj, actual1]) | |
| } | |
| if (`"${actual0}"` !== actual1) { | |
| console.log(['diff', actual0, actual1]) | |
| } | |
| } | |
| console.log('done') |
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