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Refactor user_and_group so it works off of numbers

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There are various cases where a UID to username to UID mapping breaks
down. One UID can be used by two usernames, or no username. If we
always use UIDs internally, then these ambiguous cases won't be a
problem.
This commit is contained in:
Aaron Brady
2013-04-23 15:29:35 +01:00
parent d2e457f81f
commit bd226eb826
1 changed files with 33 additions and 31 deletions
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64
lib/ansible/module_common.py
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@@ -319,15 +319,7 @@ class AnsibleModule(object):
st = os.stat(filename)
uid = st.st_uid
gid = st.st_gid
try:
user = pwd.getpwuid(uid)[0]
except KeyError:
user = str(uid)
try:
group = grp.getgrgid(gid)[0]
except KeyError:
group = str(gid)
return (user, group)
return (uid, gid)
def set_default_selinux_context(self, path, changed):
if not HAVE_SELINUX or not self.selinux_enabled():
@@ -366,17 +358,17 @@ class AnsibleModule(object):
path = os.path.expanduser(path)
if owner is None:
return changed
user, group = self.user_and_group(path)
if owner != user:
orig_uid, orig_gid = self.user_and_group(path)
try:
uid = int(owner)
except ValueError:
try:
uid = int(owner)
except ValueError:
try:
uid = pwd.getpwnam(owner).pw_uid
except KeyError:
self.fail_json(path=path, msg='chown failed: failed to look up user %s' % owner)
if self.check_mode:
return True
uid = pwd.getpwnam(owner).pw_uid
except KeyError:
self.fail_json(path=path, msg='chown failed: failed to look up user %s' % owner)
if self.check_mode:
return True
if orig_uid != uid:
try:
os.chown(path, uid, -1)
except OSError:
@@ -388,17 +380,17 @@ class AnsibleModule(object):
path = os.path.expanduser(path)
if group is None:
return changed
old_user, old_group = self.user_and_group(path)
if old_group != group:
if self.check_mode:
return True
orig_uid, orig_gid = self.user_and_group(path)
try:
gid = int(group)
except ValueError:
try:
gid = int(group)
except ValueError:
try:
gid = grp.getgrnam(group).gr_gid
except KeyError:
self.fail_json(path=path, msg='chgrp failed: failed to look up group %s' % group)
gid = grp.getgrnam(group).gr_gid
except KeyError:
self.fail_json(path=path, msg='chgrp failed: failed to look up group %s' % group)
if self.check_mode:
return True
if orig_gid != gid:
try:
os.chown(path, -1, gid)
except OSError:
@@ -478,8 +470,18 @@ class AnsibleModule(object):
if path is None:
return kwargs
if os.path.exists(path):
(user, group) = self.user_and_group(path)
kwargs['owner'] = user
(uid, gid) = self.user_and_group(path)
kwargs['uid'] = uid
kwargs['gid'] = gid
try:
user = pwd.getpwuid(uid)[0]
except KeyError:
user = str(uid)
try:
group = grp.getgrgid(gid)[0]
except KeyError:
group = str(gid)
kwargs['owner'] = user
kwargs['group'] = group
st = os.stat(path)
kwargs['mode'] = oct(stat.S_IMODE(st[stat.ST_MODE]))