bpo-36216: Add check for characters in netloc that normalize to separators #12201
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tiran
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I'm removing the "needs backport" tags and will create the backports manually. In particular, the docs need to be slightly different for each version. I'll probably also have to come back later and add the CVE reference once we're assigned one (if we want it in there). |
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| netloc2 = unicodedata.normalize('NFKC', netloc) | ||
| if netloc == netloc2: | ||
| return | ||
| _, _, netloc = netloc.rpartition('@') # anything to the left of '@' is okay |
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@zooba @tiran Could you tell me something about this line (it is now https://github.com/python/cpython/blob/master/Lib/urllib/parse.py#L405)? It seems to me that it exactly makes the first example from https://bugs.python.org/issue36216 fail as before:
>>> u = "https://example.com\uFF03@bing.com"
>>> urlsplit(u).netloc.rpartition("@")[2]
bing.com
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https://bugs.python.org/issue36216