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auth_jasig_cas.py
167 lines | 5.8 KiB | text/x-python | PythonLexer
# -*- coding: utf-8 -*-
# Copyright (C) 2012-2016 RhodeCode GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# 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 Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/
"""
RhodeCode authentication plugin for Jasig CAS
http://www.jasig.org/cas
"""
import colander
import logging
import rhodecode
import urllib
import urllib2
from pylons.i18n.translation import lazy_ugettext as _
from sqlalchemy.ext.hybrid import hybrid_property
from rhodecode.authentication.base import RhodeCodeExternalAuthPlugin
from rhodecode.authentication.schema import AuthnPluginSettingsSchemaBase
from rhodecode.authentication.routes import AuthnPluginResourceBase
from rhodecode.lib.colander_utils import strip_whitespace
from rhodecode.lib.utils2 import safe_unicode
from rhodecode.model.db import User
log = logging.getLogger(__name__)
def plugin_factory(plugin_id, *args, **kwds):
"""
Factory function that is called during plugin discovery.
It returns the plugin instance.
"""
plugin = RhodeCodeAuthPlugin(plugin_id)
return plugin
class JasigCasAuthnResource(AuthnPluginResourceBase):
pass
class JasigCasSettingsSchema(AuthnPluginSettingsSchemaBase):
service_url = colander.SchemaNode(
colander.String(),
default='https://domain.com/cas/v1/tickets',
description=_('The url of the Jasig CAS REST service'),
preparer=strip_whitespace,
title=_('URL'),
widget='string')
class RhodeCodeAuthPlugin(RhodeCodeExternalAuthPlugin):
def includeme(self, config):
config.add_authn_plugin(self)
config.add_authn_resource(self.get_id(), JasigCasAuthnResource(self))
config.add_view(
'rhodecode.authentication.views.AuthnPluginViewBase',
attr='settings_get',
renderer='rhodecode:templates/admin/auth/plugin_settings.html',
request_method='GET',
route_name='auth_home',
context=JasigCasAuthnResource)
config.add_view(
'rhodecode.authentication.views.AuthnPluginViewBase',
attr='settings_post',
renderer='rhodecode:templates/admin/auth/plugin_settings.html',
request_method='POST',
route_name='auth_home',
context=JasigCasAuthnResource)
def get_settings_schema(self):
return JasigCasSettingsSchema()
def get_display_name(self):
return _('Jasig-CAS')
@hybrid_property
def name(self):
return "jasig-cas"
@property
def is_headers_auth(self):
return True
def use_fake_password(self):
return True
def user_activation_state(self):
def_user_perms = User.get_default_user().AuthUser.permissions['global']
return 'hg.extern_activate.auto' in def_user_perms
def auth(self, userobj, username, password, settings, **kwargs):
"""
Given a user object (which may be null), username, a plaintext password,
and a settings object (containing all the keys needed as listed in settings()),
authenticate this user's login attempt.
Return None on failure. On success, return a dictionary of the form:
see: RhodeCodeAuthPluginBase.auth_func_attrs
This is later validated for correctness
"""
if not username or not password:
log.debug('Empty username or password skipping...')
return None
log.debug("Jasig CAS settings: %s", settings)
params = urllib.urlencode({'username': username, 'password': password})
headers = {"Content-type": "application/x-www-form-urlencoded",
"Accept": "text/plain",
"User-Agent": "RhodeCode-auth-%s" % rhodecode.__version__}
url = settings["service_url"]
log.debug("Sent Jasig CAS: \n%s",
{"url": url, "body": params, "headers": headers})
request = urllib2.Request(url, params, headers)
try:
response = urllib2.urlopen(request)
except urllib2.HTTPError as e:
log.debug("HTTPError when requesting Jasig CAS (status code: %d)" % e.code)
return None
except urllib2.URLError as e:
log.debug("URLError when requesting Jasig CAS url: %s " % url)
return None
# old attrs fetched from RhodeCode database
admin = getattr(userobj, 'admin', False)
active = getattr(userobj, 'active', True)
email = getattr(userobj, 'email', '')
username = getattr(userobj, 'username', username)
firstname = getattr(userobj, 'firstname', '')
lastname = getattr(userobj, 'lastname', '')
extern_type = getattr(userobj, 'extern_type', '')
user_attrs = {
'username': username,
'firstname': safe_unicode(firstname or username),
'lastname': safe_unicode(lastname or ''),
'groups': [],
'email': email or '',
'admin': admin or False,
'active': active,
'active_from_extern': True,
'extern_name': username,
'extern_type': extern_type,
}
log.info('user %s authenticated correctly' % user_attrs['username'])
return user_attrs