[3.6] bpo-36742: Fixes handling of pre-normalization characters in urlsplit() (GH-13017) by miss-islington · Pull Request #13024 · python/cpython

Expand Up @@ -397,13 +397,16 @@ def _checknetloc(netloc): # looking for characters like \u2100 that expand to 'a/c' # IDNA uses NFKC equivalence, so normalize for this check import unicodedata netloc2 = unicodedata.normalize('NFKC', netloc) if netloc == netloc2: n = netloc.rpartition('@')[2] # ignore anything to the left of '@' n = n.replace(':', '') # ignore characters already included n = n.replace('#', '') # but not the surrounding text n = n.replace('?', '') netloc2 = unicodedata.normalize('NFKC', n) if n == netloc2: return _, _, netloc = netloc.rpartition('@') # anything to the left of '@' is okay for c in '/?#@:': if c in netloc2: raise ValueError("netloc '" + netloc2 + "' contains invalid " + raise ValueError("netloc '" + netloc + "' contains invalid " + "characters under NFKC normalization")
def urlsplit(url, scheme='', allow_fragments=True): Expand Down