# -*- coding: utf-8 -*- # Copyright (C) 2012-2020 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 . # # 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 Atlassian CROWD """ import colander import base64 import logging import urllib.request, urllib.error, urllib.parse from rhodecode.translation import _ from rhodecode.authentication.base import ( RhodeCodeExternalAuthPlugin, hybrid_property) from rhodecode.authentication.schema import AuthnPluginSettingsSchemaBase from rhodecode.authentication.routes import AuthnPluginResourceBase from rhodecode.lib.colander_utils import strip_whitespace from rhodecode.lib.ext_json import json, formatted_json from rhodecode.model.db import User log = logging.getLogger(__name__) def plugin_factory(plugin_id, *args, **kwargs): """ Factory function that is called during plugin discovery. It returns the plugin instance. """ plugin = RhodeCodeAuthPlugin(plugin_id) return plugin class CrowdAuthnResource(AuthnPluginResourceBase): pass class CrowdSettingsSchema(AuthnPluginSettingsSchemaBase): host = colander.SchemaNode( colander.String(), default='127.0.0.1', description=_('The FQDN or IP of the Atlassian CROWD Server'), preparer=strip_whitespace, title=_('Host'), widget='string') port = colander.SchemaNode( colander.Int(), default=8095, description=_('The Port in use by the Atlassian CROWD Server'), preparer=strip_whitespace, title=_('Port'), validator=colander.Range(min=0, max=65536), widget='int') app_name = colander.SchemaNode( colander.String(), default='', description=_('The Application Name to authenticate to CROWD'), preparer=strip_whitespace, title=_('Application Name'), widget='string') app_password = colander.SchemaNode( colander.String(), default='', description=_('The password to authenticate to CROWD'), preparer=strip_whitespace, title=_('Application Password'), widget='password') admin_groups = colander.SchemaNode( colander.String(), default='', description=_('A comma separated list of group names that identify ' 'users as RhodeCode Administrators'), missing='', preparer=strip_whitespace, title=_('Admin Groups'), widget='string') class CrowdServer(object): def __init__(self, *args, **kwargs): """ Create a new CrowdServer object that points to IP/Address 'host', on the given port, and using the given method (https/http). user and passwd can be set here or with set_credentials. If unspecified, "version" defaults to "latest". example:: cserver = CrowdServer(host="127.0.0.1", port="8095", user="some_app", passwd="some_passwd", version="1") """ if not "port" in kwargs: kwargs["port"] = "8095" self._logger = kwargs.get("logger", logging.getLogger(__name__)) self._uri = "%s://%s:%s/crowd" % (kwargs.get("method", "http"), kwargs.get("host", "127.0.0.1"), kwargs.get("port", "8095")) self.set_credentials(kwargs.get("user", ""), kwargs.get("passwd", "")) self._version = kwargs.get("version", "latest") self._url_list = None self._appname = "crowd" def set_credentials(self, user, passwd): self.user = user self.passwd = passwd self._make_opener() def _make_opener(self): mgr = urllib.request.HTTPPasswordMgrWithDefaultRealm() mgr.add_password(None, self._uri, self.user, self.passwd) handler = urllib.request.HTTPBasicAuthHandler(mgr) self.opener = urllib.request.build_opener(handler) def _request(self, url, body=None, headers=None, method=None, noformat=False, empty_response_ok=False): _headers = {"Content-type": "application/json", "Accept": "application/json"} if self.user and self.passwd: authstring = base64.b64encode("%s:%s" % (self.user, self.passwd)) _headers["Authorization"] = "Basic %s" % authstring if headers: _headers.update(headers) log.debug("Sent crowd: \n%s" % (formatted_json({"url": url, "body": body, "headers": _headers}))) request = urllib.request.Request(url, body, _headers) if method: request.get_method = lambda: method global msg msg = "" try: ret_doc = self.opener.open(request) msg = ret_doc.read() if not msg and empty_response_ok: ret_val = {} ret_val["status"] = True ret_val["error"] = "Response body was empty" elif not noformat: ret_val = json.loads(msg) ret_val["status"] = True else: ret_val = msg except Exception as e: if not noformat: ret_val = {"status": False, "body": body, "error": "{}\n{}".format(e, msg)} else: ret_val = None return ret_val def user_auth(self, username, password): """Authenticate a user against crowd. Returns brief information about the user.""" url = ("%s/rest/usermanagement/%s/authentication?username=%s" % (self._uri, self._version, username)) body = json.dumps({"value": password}) return self._request(url, body) def user_groups(self, username): """Retrieve a list of groups to which this user belongs.""" url = ("%s/rest/usermanagement/%s/user/group/nested?username=%s" % (self._uri, self._version, username)) return self._request(url) class RhodeCodeAuthPlugin(RhodeCodeExternalAuthPlugin): uid = 'crowd' _settings_unsafe_keys = ['app_password'] def includeme(self, config): config.add_authn_plugin(self) config.add_authn_resource(self.get_id(), CrowdAuthnResource(self)) config.add_view( 'rhodecode.authentication.views.AuthnPluginViewBase', attr='settings_get', renderer='rhodecode:templates/admin/auth/plugin_settings.mako', request_method='GET', route_name='auth_home', context=CrowdAuthnResource) config.add_view( 'rhodecode.authentication.views.AuthnPluginViewBase', attr='settings_post', renderer='rhodecode:templates/admin/auth/plugin_settings.mako', request_method='POST', route_name='auth_home', context=CrowdAuthnResource) def get_settings_schema(self): return CrowdSettingsSchema() def get_display_name(self, load_from_settings=False): return _('CROWD') @classmethod def docs(cls): return "https://docs.rhodecode.com/RhodeCode-Enterprise/auth/auth-crowd.html" @hybrid_property def name(self): return u"crowd" 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("Crowd settings: \n%s", formatted_json(settings)) server = CrowdServer(**settings) server.set_credentials(settings["app_name"], settings["app_password"]) crowd_user = server.user_auth(username, password) log.debug("Crowd returned: \n%s", formatted_json(crowd_user)) if not crowd_user["status"]: return None res = server.user_groups(crowd_user["name"]) log.debug("Crowd groups: \n%s", formatted_json(res)) crowd_user["groups"] = [x["name"] for x in res["groups"]] # 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': crowd_user["first-name"] or firstname, 'lastname': crowd_user["last-name"] or lastname, 'groups': crowd_user["groups"], 'user_group_sync': True, 'email': crowd_user["email"] or email, 'admin': admin, 'active': active, 'active_from_extern': crowd_user.get('active'), 'extern_name': crowd_user["name"], 'extern_type': extern_type, } # set an admin if we're in admin_groups of crowd for group in settings["admin_groups"]: if group in user_attrs["groups"]: user_attrs["admin"] = True log.debug("Final crowd user object: \n%s", formatted_json(user_attrs)) log.info('user `%s` authenticated correctly', user_attrs['username']) return user_attrs def includeme(config): plugin_id = 'egg:rhodecode-enterprise-ce#{}'.format(RhodeCodeAuthPlugin.uid) plugin_factory(plugin_id).includeme(config)