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Issue #12841: Fix tarfile extraction of non-existent uids/gids.

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tarfile unnecessarily checked the existence of numerical user and group ids on
extraction. If one of them did not exist the respective id of the current user
(i.e. root) was used for the file and ownership information was lost. (Patch
by Sebastien Luttringer)
This commit is contained in:
Lars Gustäbel 2011-09-05 16:58:14 +02:00
parent d9e0b068af
commit 2e7ddd374b
2 changed files with 7 additions and 8 deletions
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10
Lib/tarfile.py
View file

@ -2368,17 +2368,11 @@ class TarFile(object):
try:
g = grp.getgrnam(tarinfo.gname)[2]
except KeyError:
try:
g = grp.getgrgid(tarinfo.gid)[2]
except KeyError:
g = os.getgid()
g = tarinfo.gid
try:
u = pwd.getpwnam(tarinfo.uname)[2]
except KeyError:
try:
u = pwd.getpwuid(tarinfo.uid)[2]
except KeyError:
u = os.getuid()
u = tarinfo.uid
try:
if tarinfo.issym() and hasattr(os, "lchown"):
os.lchown(targetpath, u, g)