Noam Rosenthal
bcb3fe7657
Automatic update from web-platform-tests Disallow script mutation with safe streamHTML* Bug: 513128322 Change-Id: Ic7fcb986f65a994c3948afe9912de231a0f35293 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7849074 Reviewed-by: Philip Jägenstedt <foolip@chromium.org> Commit-Queue: Noam Rosenthal <nrosenthal@google.com> Reviewed-by: Daniel Vogelheim <vogelheim@chromium.org> Cr-Commit-Position: refs/heads/main@{#1636775} -- wpt-commits: 64a1e2cec423adcf32949b1a77079f91ead3ef8b wpt-pr: 60111
50 lines
1.8 KiB
HTML
50 lines
1.8 KiB
HTML
<!doctype html>
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<meta charset="utf-8" />
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<title>Sanitizer API safe streaming setters should not execute scripts when targeting script elements</title>
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<link rel="help" href="https://github.com/WICG/declarative-partial-updates" />
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<body>
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<script>
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async function test_safe_setter_on_script(method, setup_target) {
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promise_test(async (t) => {
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const script = document.createElement("script");
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document.body.appendChild(script);
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t.add_cleanup(() => script.remove());
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const target = setup_target ? setup_target(script) : script;
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const var_name = `executed_${method}`;
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window[var_name] = false;
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let writable;
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try {
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writable = target[method]();
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} catch (e) {
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// If the safe setter throws an exception when targeting a script element,
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// that is a valid safe-mode behavior.
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assert_false(window[var_name], "Script should not execute");
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return;
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}
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assert_true(writable instanceof WritableStream);
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const writer = writable.getWriter();
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await writer.write(`window.${var_name} = true;`);
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await writer.close();
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assert_false(window[var_name], `Streaming content into a script element using safe ${method} should not execute the script`);
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}, `Safe streaming setter ${method} targeting a script element should not allow script execution`);
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}
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for (const method of ["streamHTML", "streamAppendHTML", "streamPrependHTML"]) {
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test_safe_setter_on_script(method);
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}
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for (const method of ["streamBeforeHTML", "streamAfterHTML", "streamReplaceWithHTML"]) {
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test_safe_setter_on_script(method, (s) => {
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s.appendChild(document.createTextNode("/* setup */"));
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return s.firstChild;
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});
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}
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</script>
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</body>
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