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Issue #23146: Fix mishandling of absolute Windows paths with forward slashes in pathlib. 

Detected and fixed by Serhiy.
This commit is contained in:
Antoine Pitrou 2015-02-15 18:03:59 +01:00
parent 0aa74e10bb
commit 57fffd6f99
3 changed files with 27 additions and 16 deletions
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4
Lib/pathlib.py
View File

@ -73,6 +73,10 @@ class _Flavour(object):
# parts. This makes the result of parsing e.g.
# ("C:", "/", "a") reasonably intuitive.
for part in it:
if not part:
continue
if altsep:
part = part.replace(altsep, sep)
drv = self.splitroot(part)[0]
if drv:
break

36
Lib/test/test_pathlib.py
View File

@ -105,31 +105,35 @@ class NTFlavourTest(_BaseFlavourTest, unittest.TestCase):
check = self._check_parse_parts
# First part is anchored
check(['c:'], ('c:', '', ['c:']))
check(['c:\\'], ('c:', '\\', ['c:\\']))
check(['\\'], ('', '\\', ['\\']))
check(['c:/'], ('c:', '\\', ['c:\\']))
check(['/'], ('', '\\', ['\\']))
check(['c:a'], ('c:', '', ['c:', 'a']))
check(['c:\\a'], ('c:', '\\', ['c:\\', 'a']))
check(['\\a'], ('', '\\', ['\\', 'a']))
check(['c:/a'], ('c:', '\\', ['c:\\', 'a']))
check(['/a'], ('', '\\', ['\\', 'a']))
# UNC paths
check(['\\\\a\\b'], ('\\\\a\\b', '\\', ['\\\\a\\b\\']))
check(['\\\\a\\b\\'], ('\\\\a\\b', '\\', ['\\\\a\\b\\']))
check(['\\\\a\\b\\c'], ('\\\\a\\b', '\\', ['\\\\a\\b\\', 'c']))
check(['//a/b'], ('\\\\a\\b', '\\', ['\\\\a\\b\\']))
check(['//a/b/'], ('\\\\a\\b', '\\', ['\\\\a\\b\\']))
check(['//a/b/c'], ('\\\\a\\b', '\\', ['\\\\a\\b\\', 'c']))
# Second part is anchored, so that the first part is ignored
check(['a', 'Z:b', 'c'], ('Z:', '', ['Z:', 'b', 'c']))
check(['a', 'Z:\\b', 'c'], ('Z:', '\\', ['Z:\\', 'b', 'c']))
check(['a', '\\b', 'c'], ('', '\\', ['\\', 'b', 'c']))
check(['a', 'Z:/b', 'c'], ('Z:', '\\', ['Z:\\', 'b', 'c']))
# UNC paths
check(['a', '\\\\b\\c', 'd'], ('\\\\b\\c', '\\', ['\\\\b\\c\\', 'd']))
check(['a', '//b/c', 'd'], ('\\\\b\\c', '\\', ['\\\\b\\c\\', 'd']))
# Collapsing and stripping excess slashes
check(['a', 'Z:\\\\b\\\\c\\', 'd\\'], ('Z:', '\\', ['Z:\\', 'b', 'c', 'd']))
check(['a', 'Z://b//c/', 'd/'], ('Z:', '\\', ['Z:\\', 'b', 'c', 'd']))
# UNC paths
check(['a', '\\\\b\\c\\\\', 'd'], ('\\\\b\\c', '\\', ['\\\\b\\c\\', 'd']))
check(['a', '//b/c//', 'd'], ('\\\\b\\c', '\\', ['\\\\b\\c\\', 'd']))
# Extended paths
check(['\\\\?\\c:\\'], ('\\\\?\\c:', '\\', ['\\\\?\\c:\\']))
check(['\\\\?\\c:\\a'], ('\\\\?\\c:', '\\', ['\\\\?\\c:\\', 'a']))
check(['//?/c:/'], ('\\\\?\\c:', '\\', ['\\\\?\\c:\\']))
check(['//?/c:/a'], ('\\\\?\\c:', '\\', ['\\\\?\\c:\\', 'a']))
check(['//?/c:/a', '/b'], ('\\\\?\\c:', '\\', ['\\\\?\\c:\\', 'b']))
# Extended UNC paths (format is "\\?\UNC\server\share")
check(['\\\\?\\UNC\\b\\c'], ('\\\\?\\UNC\\b\\c', '\\', ['\\\\?\\UNC\\b\\c\\']))
check(['\\\\?\\UNC\\b\\c\\d'], ('\\\\?\\UNC\\b\\c', '\\', ['\\\\?\\UNC\\b\\c\\', 'd']))
check(['//?/UNC/b/c'], ('\\\\?\\UNC\\b\\c', '\\', ['\\\\?\\UNC\\b\\c\\']))
check(['//?/UNC/b/c/d'], ('\\\\?\\UNC\\b\\c', '\\', ['\\\\?\\UNC\\b\\c\\', 'd']))
# Second part has a root but not drive
check(['a', '/b', 'c'], ('', '\\', ['\\', 'b', 'c']))
check(['Z:/a', '/b', 'c'], ('Z:', '\\', ['Z:\\', 'b', 'c']))
check(['//?/Z:/a', '/b', 'c'], ('\\\\?\\Z:', '\\', ['\\\\?\\Z:\\', 'b', 'c']))
def test_splitroot(self):
f = self.flavour.splitroot

3
Misc/NEWS
View File

@ -13,6 +13,9 @@ Core and Builtins
Library
-------
- Issue #23146: Fix mishandling of absolute Windows paths with forward
slashes in pathlib.
- Issue #23421: Fixed compression in tarfile CLI. Patch by wdv4758h.
- Issue #23361: Fix possible overflow in Windows subprocess creation code.