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Py:don't parse regular expressions in system-code

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erik-krogh
2023-03-15 23:14:04 +01:00
parent be8f04a997
commit 8bc8342c7c
1 changed files with 5 additions and 1 deletions
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6
python/ql/lib/semmle/python/regex.qll
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@@ -140,7 +140,11 @@ string mode_from_node(DataFlow::Node node) { node = re_flag_tracker(result) }
/** A StrConst used as a regular expression */
abstract class RegexString extends Expr {
RegexString() { (this instanceof Bytes or this instanceof Unicode) }
RegexString() {
(this instanceof Bytes or this instanceof Unicode) and
// is part of the user code
exists(this.getLocation().getFile().getRelativePath())
}
/**
* Helper predicate for `char_set_start(int start, int end)`.