#!/usr/bin/env python
#
# Copyright 2005-2007 by Intevation GmbH <intevation@intevation.de>
# Author(s):
# Thomas Arendsen Hein <thomas@intevation.de>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
"""
hg-ssh - a wrapper for ssh access to a limited set of mercurial repos
To be used in ~/.ssh/authorized_keys with the "command" option, see sshd(8):
command="hg-ssh path/to/repo1 /path/to/repo2 ~/repo3 ~user/repo4" ssh-dss ...
(probably together with these other useful options:
no-port-forwarding,no-X11-forwarding,no-agent-forwarding)
This allows pull/push over ssh to to the repositories given as arguments.
If all your repositories are subdirectories of a common directory, you can
allow shorter paths with:
command="cd path/to/my/repositories && hg-ssh repo1 subdir/repo2"
You can use pattern matching of your normal shell, e.g.:
command="cd repos && hg-ssh user/thomas/* projects/{mercurial,foo}"
"""
# enable importing on demand to reduce startup time
from mercurial import demandimport; demandimport.enable()
from mercurial import dispatch
import sys, os
cwd = os.getcwd()
allowed_paths = [os.path.normpath(os.path.join(cwd, os.path.expanduser(path)))
for path in sys.argv[1:]]
orig_cmd = os.getenv('SSH_ORIGINAL_COMMAND', '?')
if orig_cmd.startswith('hg -R ') and orig_cmd.endswith(' serve --stdio'):
path = orig_cmd[6:-14]
repo = os.path.normpath(os.path.join(cwd, os.path.expanduser(path)))
if repo in allowed_paths:
dispatch.dispatch(['-R', repo, 'serve', '--stdio'])
else:
sys.stderr.write("Illegal repository %r\n" % repo)
sys.exit(-1)
else:
sys.stderr.write("Illegal command %r\n" % orig_cmd)
sys.exit(-1)