108 lines
3.8 KiB
Python
108 lines
3.8 KiB
Python
|
# acl.py - changeset access control for mercurial
|
||
|
|
#
|
||
|
|
# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
|
||
|
|
#
|
||
|
|
# This software may be used and distributed according to the terms of the
|
||
|
|
# GNU General Public License version 2, incorporated herein by reference.
|
||
|
|
#
|
||
|
|
|
||
|
|
'''hooks for controlling repository access
|
||
|
|
|
||
|
|
This hook makes it possible to allow or deny write access to portions
|
||
|
|
of a repository when receiving incoming changesets.
|
||
|
|
|
||
|
|
The authorization is matched based on the local user name on the
|
||
|
|
system where the hook runs, and not the committer of the original
|
||
|
|
changeset (since the latter is merely informative).
|
||
|
|
|
||
|
|
The acl hook is best used along with a restricted shell like hgsh,
|
||
|
|
preventing authenticating users from doing anything other than
|
||
|
|
pushing or pulling. The hook is not safe to use if users have
|
||
|
|
interactive shell access, as they can then disable the hook.
|
||
|
|
Nor is it safe if remote users share an account, because then there
|
||
|
|
is no way to distinguish them.
|
||
|
|
|
||
|
|
To use this hook, configure the acl extension in your hgrc like this::
|
||
|
|
|
||
|
|
[extensions]
|
||
|
|
hgext.acl =
|
||
|
|
|
||
|
|
[hooks]
|
||
|
|
pretxnchangegroup.acl = python:hgext.acl.hook
|
||
|
|
|
||
|
|
[acl]
|
||
|
|
# Check whether the source of incoming changes is in this list
|
||
|
|
# ("serve" == ssh or http, "push", "pull", "bundle")
|
||
|
|
sources = serve
|
||
|
|
|
||
|
|
The allow and deny sections take a subtree pattern as key (with a glob
|
||
|
|
syntax by default), and a comma separated list of users as the
|
||
|
|
corresponding value. The deny list is checked before the allow list
|
||
|
|
is. ::
|
||
|
|
|
||
|
|
[acl.allow]
|
||
|
|
# If acl.allow is not present, all users are allowed by default.
|
||
|
|
# An empty acl.allow section means no users allowed.
|
||
|
|
docs/** = doc_writer
|
||
|
|
.hgtags = release_engineer
|
||
|
|
|
||
|
|
[acl.deny]
|
||
|
|
# If acl.deny is not present, no users are refused by default.
|
||
|
|
# An empty acl.deny section means all users allowed.
|
||
|
|
glob pattern = user4, user5
|
||
|
|
** = user6
|
||
|
|
'''
|
||
|
|
|
||
|
|
from mercurial.i18n import _
|
||
|
|
from mercurial import util, match
|
||
|
|
import getpass, urllib
|
||
|
|
|
||
|
|
def buildmatch(ui, repo, user, key):
|
||
|
|
'''return tuple of (match function, list enabled).'''
|
||
|
|
if not ui.has_section(key):
|
||
|
|
ui.debug(_('acl: %s not enabled\n') % key)
|
||
|
|
return None
|
||
|
|
|
||
|
|
pats = [pat for pat, users in ui.configitems(key)
|
||
|
|
if user in users.replace(',', ' ').split()]
|
||
|
|
ui.debug(_('acl: %s enabled, %d entries for user %s\n') %
|
||
|
|
(key, len(pats), user))
|
||
|
|
if pats:
|
||
|
|
return match.match(repo.root, '', pats)
|
||
|
|
return match.exact(repo.root, '', [])
|
||
|
|
|
||
|
|
|
||
|
|
def hook(ui, repo, hooktype, node=None, source=None, **kwargs):
|
||
|
|
if hooktype != 'pretxnchangegroup':
|
||
|
|
raise util.Abort(_('config error - hook type "%s" cannot stop '
|
||
|
|
'incoming changesets') % hooktype)
|
||
|
|
if source not in ui.config('acl', 'sources', 'serve').split():
|
||
|
|
ui.debug(_('acl: changes have source "%s" - skipping\n') % source)
|
||
|
|
return
|
||
|
|
|
||
|
|
user = None
|
||
|
|
if source == 'serve' and 'url' in kwargs:
|
||
|
|
url = kwargs['url'].split(':')
|
||
|
|
if url[0] == 'remote' and url[1].startswith('http'):
|
||
|
|
user = urllib.unquote(url[3])
|
||
|
|
|
||
|
|
if user is None:
|
||
|
|
user = getpass.getuser()
|
||
|
|
|
||
|
|
cfg = ui.config('acl', 'config')
|
||
|
|
if cfg:
|
||
|
|
ui.readconfig(cfg, sections = ['acl.allow', 'acl.deny'])
|
||
|
|
allow = buildmatch(ui, repo, user, 'acl.allow')
|
||
|
|
deny = buildmatch(ui, repo, user, 'acl.deny')
|
||
|
|
|
||
|
|
for rev in xrange(repo[node], len(repo)):
|
||
|
|
ctx = repo[rev]
|
||
|
|
for f in ctx.files():
|
||
|
|
if deny and deny(f):
|
||
|
|
ui.debug(_('acl: user %s denied on %s\n') % (user, f))
|
||
|
|
raise util.Abort(_('acl: access denied for changeset %s') % ctx)
|
||
|
|
if allow and not allow(f):
|
||
|
|
ui.debug(_('acl: user %s not allowed on %s\n') % (user, f))
|
||
|
|
raise util.Abort(_('acl: access denied for changeset %s') % ctx)
|
||
|
|
ui.debug(_('acl: allowing changeset %s\n') % ctx)
|