author | Brendan Cully <brendan@kublai.com> |
Thu, 14 Dec 2006 13:49:33 -0800 | |
changeset 3887 | 79e5a6e7c451 |
parent 3886 | abaee83ce0a6 |
child 3893 | 6b4127c7d52a |
permissions | -rw-r--r-- |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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1 |
# acl.py - changeset access control for mercurial |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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2 |
# |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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3 |
# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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parents:
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4 |
# |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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5 |
# This software may be used and distributed according to the terms |
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parents:
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6 |
# of the GNU General Public License, incorporated herein by reference. |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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7 |
# |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# this hook allows to allow or deny access to parts of a repo when |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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9 |
# taking incoming changesets. |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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10 |
# |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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11 |
# authorization is against local user name on system where hook is |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# run, not committer of original changeset (since that is easy to |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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13 |
# spoof). |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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14 |
# |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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15 |
# acl hook is best to use if you use hgsh to set up restricted shells |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# for authenticated users to only push to / pull from. not safe if |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# user has interactive shell access, because they can disable hook. |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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18 |
# also not safe if remote users share one local account, because then |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# no way to tell remote users apart. |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# to use, configure acl extension in hgrc like this: |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# [extensions] |
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Vadim Gelfer <vadim.gelfer@gmail.com>
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# hgext.acl = |
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# |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# [hooks] |
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# pretxnchangegroup.acl = python:hgext.acl.hook |
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# |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# [acl] |
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# sources = serve # check if source of incoming changes in this list |
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Vadim Gelfer <vadim.gelfer@gmail.com>
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# # ("serve" == ssh or http, "push", "pull", "bundle") |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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33 |
# allow and deny lists have subtree pattern (default syntax is glob) |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# on left, user names on right. deny list checked before allow list. |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# [acl.allow] |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# # if acl.allow not present, all users allowed by default |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# # empty acl.allow = no users allowed |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# docs/** = doc_writer |
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# .hgtags = release_engineer |
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parents:
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# |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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42 |
# [acl.deny] |
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# # if acl.deny not present, no users denied by default |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# # empty acl.deny = all users allowed |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# glob pattern = user4, user5 |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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# ** = user6 |
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parents:
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47 |
|
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parents:
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from mercurial.i18n import gettext as _ |
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from mercurial.node import * |
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from mercurial import util |
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import getpass |
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parents:
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52 |
|
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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53 |
class checker(object): |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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54 |
'''acl checker.''' |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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55 |
|
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parents:
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def buildmatch(self, key): |
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'''return tuple of (match function, list enabled).''' |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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58 |
if not self.ui.has_config(key): |
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self.ui.debug(_('acl: %s not enabled\n') % key) |
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return None, False |
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parents:
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61 |
|
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thisuser = self.getuser() |
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pats = [pat for pat, users in self.ui.configitems(key) |
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if thisuser in users.replace(',', ' ').split()] |
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parents:
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self.ui.debug(_('acl: %s enabled, %d entries for user %s\n') % |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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(key, len(pats), thisuser)) |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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if pats: |
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match = util.matcher(self.repo.root, names=pats)[1] |
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parents:
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69 |
else: |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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match = util.never |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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71 |
return match, True |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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|
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def getuser(self): |
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'''return name of authenticated user.''' |
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Vadim Gelfer <vadim.gelfer@gmail.com>
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return self.user |
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parents:
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76 |
|
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def __init__(self, ui, repo): |
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self.ui = ui |
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self.repo = repo |
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self.user = getpass.getuser() |
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cfg = self.ui.config('acl', 'config') |
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if cfg: |
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self.ui.readsections(cfg, 'acl.allow', 'acl.deny') |
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self.allow, self.allowable = self.buildmatch('acl.allow') |
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self.deny, self.deniable = self.buildmatch('acl.deny') |
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86 |
|
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87 |
def skipsource(self, source): |
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88 |
'''true if incoming changes from this source should be skipped.''' |
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89 |
ok_sources = self.ui.config('acl', 'sources', 'serve').split() |
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90 |
return source not in ok_sources |
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91 |
|
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92 |
def check(self, node): |
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93 |
'''return if access allowed, raise exception if not.''' |
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Vadim Gelfer <vadim.gelfer@gmail.com>
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files = self.repo.changelog.read(node)[3] |
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95 |
if self.deniable: |
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96 |
for f in files: |
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97 |
if self.deny(f): |
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98 |
self.ui.debug(_('acl: user %s denied on %s\n') % |
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parents:
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99 |
(self.getuser(), f)) |
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parents:
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100 |
raise util.Abort(_('acl: access denied for changeset %s') % |
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parents:
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101 |
short(node)) |
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parents:
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|
102 |
if self.allowable: |
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parents:
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103 |
for f in files: |
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parents:
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|
104 |
if not self.allow(f): |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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105 |
self.ui.debug(_('acl: user %s not allowed on %s\n') % |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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|
106 |
(self.getuser(), f)) |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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|
107 |
raise util.Abort(_('acl: access denied for changeset %s') % |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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|
108 |
short(node)) |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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|
109 |
self.ui.debug(_('acl: allowing changeset %s\n') % short(node)) |
ae12e5a2c4a3
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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|
110 |
|
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parents:
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|
111 |
def hook(ui, repo, hooktype, node=None, source=None, **kwargs): |
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parents:
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112 |
if hooktype != 'pretxnchangegroup': |
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parents:
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|
113 |
raise util.Abort(_('config error - hook type "%s" cannot stop ' |
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parents:
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|
114 |
'incoming changesets') % hooktype) |
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parents:
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115 |
|
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parents:
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|
116 |
c = checker(ui, repo) |
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parents:
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|
117 |
if c.skipsource(source): |
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parents:
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118 |
ui.debug(_('acl: changes have source "%s" - skipping\n') % source) |
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parents:
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|
119 |
return |
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parents:
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120 |
|
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parents:
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121 |
start = repo.changelog.rev(bin(node)) |
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parents:
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122 |
end = repo.changelog.count() |
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parents:
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123 |
for rev in xrange(start, end): |
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parents:
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124 |
c.check(repo.changelog.node(rev)) |