JavaScript: Add library for HTML sanitizers#46
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semmle-qlci merged 3 commits intogithub:masterfrom Aug 13, 2018
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xiemaisi
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LGTM, but perhaps could do with a change note. The name based matching is probably fine; it's no worse than what we do for sensitive expressions.
| abstract DataFlow::Node getInput(); | ||
| } | ||
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| private class DefaultHtmlSanitizerCall extends HtmlSanitizerCall { |
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May be worth adding a comment (even though it's private), explaining that this models popular npm packages as well as home-made sanitizers.
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Addressed comments and rebased to avoid conflict in the change log. |
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Adds
HtmlSanitizerCall, which models a call to a function whose purpose is to sanitize HTML.CodeInjectionhas been updated to use theHtmlSanitizerCallclass for additional taint steps. Unilke the previous version of this PR, no other queries are affected, since it cost more than expected.I ran
CodeInjectionon default slugs to force evaluation ofHtmlSanitizerCall. The performance results are noisy but after re-running the slowest bunch it looks okay.@max you had some concerns about the name-based matching in the standard library. We could move that part back into
CodeInjectionif you prefer.