| # factotum.py - Plan 9 factotum integration for Mercurial |
| # |
| # Copyright (C) 2012 Steven Stallion <sstallion@gmail.com> |
| # |
| # This program is free software; you can redistribute it and/or modify it |
| # under the terms of the GNU General Public License as published by the |
| # Free Software Foundation; either version 2 of the License, or (at your |
| # option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, but |
| # WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
| # Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License along |
| # with this program; if not, write to the Free Software Foundation, Inc., |
| # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| |
| '''http authentication with factotum |
| |
| This extension allows the factotum(4) facility on Plan 9 from Bell Labs |
| platforms to provide authentication information for HTTP access. Configuration |
| entries specified in the auth section as well as authentication information |
| provided in the repository URL are fully supported. If no prefix is specified, |
| a value of "*" will be assumed. |
| |
| By default, keys are specified as:: |
| |
| proto=pass service=hg prefix=<prefix> user=<username> !password=<password> |
| |
| If the factotum extension is unable to read the required key, one will be |
| requested interactively. |
| |
| A configuration section is available to customize runtime behavior. By |
| default, these entries are:: |
| |
| [factotum] |
| executable = /bin/auth/factotum |
| mountpoint = /mnt/factotum |
| service = hg |
| |
| The executable entry defines the full path to the factotum binary. The |
| mountpoint entry defines the path to the factotum file service. Lastly, the |
| service entry controls the service name used when reading keys. |
| |
| ''' |
| |
| from mercurial.i18n import _ |
| from mercurial.url import passwordmgr |
| from mercurial import httpconnection, util |
| import os, urllib2 |
| |
| ERRMAX = 128 |
| |
| def auth_getkey(self, params): |
| if not self.ui.interactive(): |
| raise util.Abort(_('factotum not interactive')) |
| if 'user=' not in params: |
| params = '%s user?' % params |
| params = '%s !password?' % params |
| os.system("%s -g '%s'" % (_executable, params)) |
| |
| def auth_getuserpasswd(self, getkey, params): |
| params = 'proto=pass %s' % params |
| while True: |
| fd = os.open('%s/rpc' % _mountpoint, os.O_RDWR) |
| try: |
| try: |
| os.write(fd, 'start %s' % params) |
| l = os.read(fd, ERRMAX).split() |
| if l[0] == 'ok': |
| os.write(fd, 'read') |
| l = os.read(fd, ERRMAX).split() |
| if l[0] == 'ok': |
| return l[1:] |
| except (OSError, IOError): |
| raise util.Abort(_('factotum not responding')) |
| finally: |
| os.close(fd) |
| getkey(self, params) |
| |
| def monkeypatch_method(cls): |
| def decorator(func): |
| setattr(cls, func.__name__, func) |
| return func |
| return decorator |
| |
| @monkeypatch_method(passwordmgr) |
| def find_user_password(self, realm, authuri): |
| user, passwd = urllib2.HTTPPasswordMgrWithDefaultRealm.find_user_password( |
| self, realm, authuri) |
| if user and passwd: |
| self._writedebug(user, passwd) |
| return (user, passwd) |
| |
| prefix = '' |
| res = httpconnection.readauthforuri(self.ui, authuri, user) |
| if res: |
| _, auth = res |
| prefix = auth.get('prefix') |
| user, passwd = auth.get('username'), auth.get('password') |
| if not user or not passwd: |
| if not prefix: |
| prefix = '*' |
| params = 'service=%s prefix=%s' % (_service, prefix) |
| if user: |
| params = '%s user=%s' % (params, user) |
| user, passwd = auth_getuserpasswd(self, auth_getkey, params) |
| |
| self.add_password(realm, authuri, user, passwd) |
| self._writedebug(user, passwd) |
| return (user, passwd) |
| |
| def uisetup(ui): |
| global _executable |
| _executable = ui.config('factotum', 'executable', '/bin/auth/factotum') |
| global _mountpoint |
| _mountpoint = ui.config('factotum', 'mountpoint', '/mnt/factotum') |
| global _service |
| _service = ui.config('factotum', 'service', 'hg') |