|
|
# -*- coding: utf-8 -*-
|
|
|
|
|
|
# Copyright (C) 2010-2019 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/
|
|
|
|
|
|
"""
|
|
|
Authentication modules
|
|
|
"""
|
|
|
import socket
|
|
|
import string
|
|
|
import colander
|
|
|
import copy
|
|
|
import logging
|
|
|
import time
|
|
|
import traceback
|
|
|
import warnings
|
|
|
import functools
|
|
|
|
|
|
from pyramid.threadlocal import get_current_registry
|
|
|
|
|
|
from rhodecode.authentication.interface import IAuthnPluginRegistry
|
|
|
from rhodecode.authentication.schema import AuthnPluginSettingsSchemaBase
|
|
|
from rhodecode.lib import rc_cache
|
|
|
from rhodecode.lib.auth import PasswordGenerator, _RhodeCodeCryptoBCrypt
|
|
|
from rhodecode.lib.utils2 import safe_int, safe_str
|
|
|
from rhodecode.lib.exceptions import LdapConnectionError, LdapUsernameError, \
|
|
|
LdapPasswordError
|
|
|
from rhodecode.model.db import User
|
|
|
from rhodecode.model.meta import Session
|
|
|
from rhodecode.model.settings import SettingsModel
|
|
|
from rhodecode.model.user import UserModel
|
|
|
from rhodecode.model.user_group import UserGroupModel
|
|
|
|
|
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
# auth types that authenticate() function can receive
|
|
|
VCS_TYPE = 'vcs'
|
|
|
HTTP_TYPE = 'http'
|
|
|
|
|
|
external_auth_session_key = 'rhodecode.external_auth'
|
|
|
|
|
|
|
|
|
class hybrid_property(object):
|
|
|
"""
|
|
|
a property decorator that works both for instance and class
|
|
|
"""
|
|
|
def __init__(self, fget, fset=None, fdel=None, expr=None):
|
|
|
self.fget = fget
|
|
|
self.fset = fset
|
|
|
self.fdel = fdel
|
|
|
self.expr = expr or fget
|
|
|
functools.update_wrapper(self, fget)
|
|
|
|
|
|
def __get__(self, instance, owner):
|
|
|
if instance is None:
|
|
|
return self.expr(owner)
|
|
|
else:
|
|
|
return self.fget(instance)
|
|
|
|
|
|
def __set__(self, instance, value):
|
|
|
self.fset(instance, value)
|
|
|
|
|
|
def __delete__(self, instance):
|
|
|
self.fdel(instance)
|
|
|
|
|
|
|
|
|
class LazyFormencode(object):
|
|
|
def __init__(self, formencode_obj, *args, **kwargs):
|
|
|
self.formencode_obj = formencode_obj
|
|
|
self.args = args
|
|
|
self.kwargs = kwargs
|
|
|
|
|
|
def __call__(self, *args, **kwargs):
|
|
|
from inspect import isfunction
|
|
|
formencode_obj = self.formencode_obj
|
|
|
if isfunction(formencode_obj):
|
|
|
# case we wrap validators into functions
|
|
|
formencode_obj = self.formencode_obj(*args, **kwargs)
|
|
|
return formencode_obj(*self.args, **self.kwargs)
|
|
|
|
|
|
|
|
|
class RhodeCodeAuthPluginBase(object):
|
|
|
# UID is used to register plugin to the registry
|
|
|
uid = None
|
|
|
|
|
|
# cache the authentication request for N amount of seconds. Some kind
|
|
|
# of authentication methods are very heavy and it's very efficient to cache
|
|
|
# the result of a call. If it's set to None (default) cache is off
|
|
|
AUTH_CACHE_TTL = None
|
|
|
AUTH_CACHE = {}
|
|
|
|
|
|
auth_func_attrs = {
|
|
|
"username": "unique username",
|
|
|
"firstname": "first name",
|
|
|
"lastname": "last name",
|
|
|
"email": "email address",
|
|
|
"groups": '["list", "of", "groups"]',
|
|
|
"user_group_sync":
|
|
|
'True|False defines if returned user groups should be synced',
|
|
|
"extern_name": "name in external source of record",
|
|
|
"extern_type": "type of external source of record",
|
|
|
"admin": 'True|False defines if user should be RhodeCode super admin',
|
|
|
"active":
|
|
|
'True|False defines active state of user internally for RhodeCode',
|
|
|
"active_from_extern":
|
|
|
"True|False|None, active state from the external auth, "
|
|
|
"None means use definition from RhodeCode extern_type active value"
|
|
|
|
|
|
}
|
|
|
# set on authenticate() method and via set_auth_type func.
|
|
|
auth_type = None
|
|
|
|
|
|
# set on authenticate() method and via set_calling_scope_repo, this is a
|
|
|
# calling scope repository when doing authentication most likely on VCS
|
|
|
# operations
|
|
|
acl_repo_name = None
|
|
|
|
|
|
# List of setting names to store encrypted. Plugins may override this list
|
|
|
# to store settings encrypted.
|
|
|
_settings_encrypted = []
|
|
|
|
|
|
# Mapping of python to DB settings model types. Plugins may override or
|
|
|
# extend this mapping.
|
|
|
_settings_type_map = {
|
|
|
colander.String: 'unicode',
|
|
|
colander.Integer: 'int',
|
|
|
colander.Boolean: 'bool',
|
|
|
colander.List: 'list',
|
|
|
}
|
|
|
|
|
|
# list of keys in settings that are unsafe to be logged, should be passwords
|
|
|
# or other crucial credentials
|
|
|
_settings_unsafe_keys = []
|
|
|
|
|
|
def __init__(self, plugin_id):
|
|
|
self._plugin_id = plugin_id
|
|
|
self._settings = {}
|
|
|
|
|
|
def __str__(self):
|
|
|
return self.get_id()
|
|
|
|
|
|
def _get_setting_full_name(self, name):
|
|
|
"""
|
|
|
Return the full setting name used for storing values in the database.
|
|
|
"""
|
|
|
# TODO: johbo: Using the name here is problematic. It would be good to
|
|
|
# introduce either new models in the database to hold Plugin and
|
|
|
# PluginSetting or to use the plugin id here.
|
|
|
return 'auth_{}_{}'.format(self.name, name)
|
|
|
|
|
|
def _get_setting_type(self, name):
|
|
|
"""
|
|
|
Return the type of a setting. This type is defined by the SettingsModel
|
|
|
and determines how the setting is stored in DB. Optionally the suffix
|
|
|
`.encrypted` is appended to instruct SettingsModel to store it
|
|
|
encrypted.
|
|
|
"""
|
|
|
schema_node = self.get_settings_schema().get(name)
|
|
|
db_type = self._settings_type_map.get(
|
|
|
type(schema_node.typ), 'unicode')
|
|
|
if name in self._settings_encrypted:
|
|
|
db_type = '{}.encrypted'.format(db_type)
|
|
|
return db_type
|
|
|
|
|
|
@classmethod
|
|
|
def docs(cls):
|
|
|
"""
|
|
|
Defines documentation url which helps with plugin setup
|
|
|
"""
|
|
|
return ''
|
|
|
|
|
|
@classmethod
|
|
|
def icon(cls):
|
|
|
"""
|
|
|
Defines ICON in SVG format for authentication method
|
|
|
"""
|
|
|
return ''
|
|
|
|
|
|
def is_enabled(self):
|
|
|
"""
|
|
|
Returns true if this plugin is enabled. An enabled plugin can be
|
|
|
configured in the admin interface but it is not consulted during
|
|
|
authentication.
|
|
|
"""
|
|
|
auth_plugins = SettingsModel().get_auth_plugins()
|
|
|
return self.get_id() in auth_plugins
|
|
|
|
|
|
def is_active(self, plugin_cached_settings=None):
|
|
|
"""
|
|
|
Returns true if the plugin is activated. An activated plugin is
|
|
|
consulted during authentication, assumed it is also enabled.
|
|
|
"""
|
|
|
return self.get_setting_by_name(
|
|
|
'enabled', plugin_cached_settings=plugin_cached_settings)
|
|
|
|
|
|
def get_id(self):
|
|
|
"""
|
|
|
Returns the plugin id.
|
|
|
"""
|
|
|
return self._plugin_id
|
|
|
|
|
|
def get_display_name(self):
|
|
|
"""
|
|
|
Returns a translation string for displaying purposes.
|
|
|
"""
|
|
|
raise NotImplementedError('Not implemented in base class')
|
|
|
|
|
|
def get_settings_schema(self):
|
|
|
"""
|
|
|
Returns a colander schema, representing the plugin settings.
|
|
|
"""
|
|
|
return AuthnPluginSettingsSchemaBase()
|
|
|
|
|
|
def _propagate_settings(self, raw_settings):
|
|
|
settings = {}
|
|
|
for node in self.get_settings_schema():
|
|
|
settings[node.name] = self.get_setting_by_name(
|
|
|
node.name, plugin_cached_settings=raw_settings)
|
|
|
return settings
|
|
|
|
|
|
def get_settings(self, use_cache=True):
|
|
|
"""
|
|
|
Returns the plugin settings as dictionary.
|
|
|
"""
|
|
|
if self._settings != {} and use_cache:
|
|
|
return self._settings
|
|
|
|
|
|
raw_settings = SettingsModel().get_all_settings()
|
|
|
settings = self._propagate_settings(raw_settings)
|
|
|
|
|
|
self._settings = settings
|
|
|
return self._settings
|
|
|
|
|
|
def get_setting_by_name(self, name, default=None, plugin_cached_settings=None):
|
|
|
"""
|
|
|
Returns a plugin setting by name.
|
|
|
"""
|
|
|
full_name = 'rhodecode_{}'.format(self._get_setting_full_name(name))
|
|
|
if plugin_cached_settings:
|
|
|
plugin_settings = plugin_cached_settings
|
|
|
else:
|
|
|
plugin_settings = SettingsModel().get_all_settings()
|
|
|
|
|
|
if full_name in plugin_settings:
|
|
|
return plugin_settings[full_name]
|
|
|
else:
|
|
|
return default
|
|
|
|
|
|
def create_or_update_setting(self, name, value):
|
|
|
"""
|
|
|
Create or update a setting for this plugin in the persistent storage.
|
|
|
"""
|
|
|
full_name = self._get_setting_full_name(name)
|
|
|
type_ = self._get_setting_type(name)
|
|
|
db_setting = SettingsModel().create_or_update_setting(
|
|
|
full_name, value, type_)
|
|
|
return db_setting.app_settings_value
|
|
|
|
|
|
def log_safe_settings(self, settings):
|
|
|
"""
|
|
|
returns a log safe representation of settings, without any secrets
|
|
|
"""
|
|
|
settings_copy = copy.deepcopy(settings)
|
|
|
for k in self._settings_unsafe_keys:
|
|
|
if k in settings_copy:
|
|
|
del settings_copy[k]
|
|
|
return settings_copy
|
|
|
|
|
|
@hybrid_property
|
|
|
def name(self):
|
|
|
"""
|
|
|
Returns the name of this authentication plugin.
|
|
|
|
|
|
:returns: string
|
|
|
"""
|
|
|
raise NotImplementedError("Not implemented in base class")
|
|
|
|
|
|
def get_url_slug(self):
|
|
|
"""
|
|
|
Returns a slug which should be used when constructing URLs which refer
|
|
|
to this plugin. By default it returns the plugin name. If the name is
|
|
|
not suitable for using it in an URL the plugin should override this
|
|
|
method.
|
|
|
"""
|
|
|
return self.name
|
|
|
|
|
|
@property
|
|
|
def is_headers_auth(self):
|
|
|
"""
|
|
|
Returns True if this authentication plugin uses HTTP headers as
|
|
|
authentication method.
|
|
|
"""
|
|
|
return False
|
|
|
|
|
|
@hybrid_property
|
|
|
def is_container_auth(self):
|
|
|
"""
|
|
|
Deprecated method that indicates if this authentication plugin uses
|
|
|
HTTP headers as authentication method.
|
|
|
"""
|
|
|
warnings.warn(
|
|
|
'Use is_headers_auth instead.', category=DeprecationWarning)
|
|
|
return self.is_headers_auth
|
|
|
|
|
|
@hybrid_property
|
|
|
def allows_creating_users(self):
|
|
|
"""
|
|
|
Defines if Plugin allows users to be created on-the-fly when
|
|
|
authentication is called. Controls how external plugins should behave
|
|
|
in terms if they are allowed to create new users, or not. Base plugins
|
|
|
should not be allowed to, but External ones should be !
|
|
|
|
|
|
:return: bool
|
|
|
"""
|
|
|
return False
|
|
|
|
|
|
def set_auth_type(self, auth_type):
|
|
|
self.auth_type = auth_type
|
|
|
|
|
|
def set_calling_scope_repo(self, acl_repo_name):
|
|
|
self.acl_repo_name = acl_repo_name
|
|
|
|
|
|
def allows_authentication_from(
|
|
|
self, user, allows_non_existing_user=True,
|
|
|
allowed_auth_plugins=None, allowed_auth_sources=None):
|
|
|
"""
|
|
|
Checks if this authentication module should accept a request for
|
|
|
the current user.
|
|
|
|
|
|
:param user: user object fetched using plugin's get_user() method.
|
|
|
:param allows_non_existing_user: if True, don't allow the
|
|
|
user to be empty, meaning not existing in our database
|
|
|
:param allowed_auth_plugins: if provided, users extern_type will be
|
|
|
checked against a list of provided extern types, which are plugin
|
|
|
auth_names in the end
|
|
|
:param allowed_auth_sources: authentication type allowed,
|
|
|
`http` or `vcs` default is both.
|
|
|
defines if plugin will accept only http authentication vcs
|
|
|
authentication(git/hg) or both
|
|
|
:returns: boolean
|
|
|
"""
|
|
|
if not user and not allows_non_existing_user:
|
|
|
log.debug('User is empty but plugin does not allow empty users,'
|
|
|
'not allowed to authenticate')
|
|
|
return False
|
|
|
|
|
|
expected_auth_plugins = allowed_auth_plugins or [self.name]
|
|
|
if user and (user.extern_type and
|
|
|
user.extern_type not in expected_auth_plugins):
|
|
|
log.debug(
|
|
|
'User `%s` is bound to `%s` auth type. Plugin allows only '
|
|
|
'%s, skipping', user, user.extern_type, expected_auth_plugins)
|
|
|
|
|
|
return False
|
|
|
|
|
|
# by default accept both
|
|
|
expected_auth_from = allowed_auth_sources or [HTTP_TYPE, VCS_TYPE]
|
|
|
if self.auth_type not in expected_auth_from:
|
|
|
log.debug('Current auth source is %s but plugin only allows %s',
|
|
|
self.auth_type, expected_auth_from)
|
|
|
return False
|
|
|
|
|
|
return True
|
|
|
|
|
|
def get_user(self, username=None, **kwargs):
|
|
|
"""
|
|
|
Helper method for user fetching in plugins, by default it's using
|
|
|
simple fetch by username, but this method can be custimized in plugins
|
|
|
eg. headers auth plugin to fetch user by environ params
|
|
|
|
|
|
:param username: username if given to fetch from database
|
|
|
:param kwargs: extra arguments needed for user fetching.
|
|
|
"""
|
|
|
user = None
|
|
|
log.debug(
|
|
|
'Trying to fetch user `%s` from RhodeCode database', username)
|
|
|
if username:
|
|
|
user = User.get_by_username(username)
|
|
|
if not user:
|
|
|
log.debug('User not found, fallback to fetch user in '
|
|
|
'case insensitive mode')
|
|
|
user = User.get_by_username(username, case_insensitive=True)
|
|
|
else:
|
|
|
log.debug('provided username:`%s` is empty skipping...', username)
|
|
|
if not user:
|
|
|
log.debug('User `%s` not found in database', username)
|
|
|
else:
|
|
|
log.debug('Got DB user:%s', user)
|
|
|
return user
|
|
|
|
|
|
def user_activation_state(self):
|
|
|
"""
|
|
|
Defines user activation state when creating new users
|
|
|
|
|
|
:returns: boolean
|
|
|
"""
|
|
|
raise NotImplementedError("Not implemented in base class")
|
|
|
|
|
|
def auth(self, userobj, username, passwd, 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
|
|
|
"""
|
|
|
raise NotImplementedError("not implemented in base class")
|
|
|
|
|
|
def _authenticate(self, userobj, username, passwd, settings, **kwargs):
|
|
|
"""
|
|
|
Wrapper to call self.auth() that validates call on it
|
|
|
|
|
|
:param userobj: userobj
|
|
|
:param username: username
|
|
|
:param passwd: plaintext password
|
|
|
:param settings: plugin settings
|
|
|
"""
|
|
|
auth = self.auth(userobj, username, passwd, settings, **kwargs)
|
|
|
if auth:
|
|
|
auth['_plugin'] = self.name
|
|
|
auth['_ttl_cache'] = self.get_ttl_cache(settings)
|
|
|
# check if hash should be migrated ?
|
|
|
new_hash = auth.get('_hash_migrate')
|
|
|
if new_hash:
|
|
|
self._migrate_hash_to_bcrypt(username, passwd, new_hash)
|
|
|
if 'user_group_sync' not in auth:
|
|
|
auth['user_group_sync'] = False
|
|
|
return self._validate_auth_return(auth)
|
|
|
return auth
|
|
|
|
|
|
def _migrate_hash_to_bcrypt(self, username, password, new_hash):
|
|
|
new_hash_cypher = _RhodeCodeCryptoBCrypt()
|
|
|
# extra checks, so make sure new hash is correct.
|
|
|
password_encoded = safe_str(password)
|
|
|
if new_hash and new_hash_cypher.hash_check(
|
|
|
password_encoded, new_hash):
|
|
|
cur_user = User.get_by_username(username)
|
|
|
cur_user.password = new_hash
|
|
|
Session().add(cur_user)
|
|
|
Session().flush()
|
|
|
log.info('Migrated user %s hash to bcrypt', cur_user)
|
|
|
|
|
|
def _validate_auth_return(self, ret):
|
|
|
if not isinstance(ret, dict):
|
|
|
raise Exception('returned value from auth must be a dict')
|
|
|
for k in self.auth_func_attrs:
|
|
|
if k not in ret:
|
|
|
raise Exception('Missing %s attribute from returned data' % k)
|
|
|
return ret
|
|
|
|
|
|
def get_ttl_cache(self, settings=None):
|
|
|
plugin_settings = settings or self.get_settings()
|
|
|
# we set default to 30, we make a compromise here,
|
|
|
# performance > security, mostly due to LDAP/SVN, majority
|
|
|
# of users pick cache_ttl to be enabled
|
|
|
from rhodecode.authentication import plugin_default_auth_ttl
|
|
|
cache_ttl = plugin_default_auth_ttl
|
|
|
|
|
|
if isinstance(self.AUTH_CACHE_TTL, (int, long)):
|
|
|
# plugin cache set inside is more important than the settings value
|
|
|
cache_ttl = self.AUTH_CACHE_TTL
|
|
|
elif plugin_settings.get('cache_ttl'):
|
|
|
cache_ttl = safe_int(plugin_settings.get('cache_ttl'), 0)
|
|
|
|
|
|
plugin_cache_active = bool(cache_ttl and cache_ttl > 0)
|
|
|
return plugin_cache_active, cache_ttl
|
|
|
|
|
|
|
|
|
class RhodeCodeExternalAuthPlugin(RhodeCodeAuthPluginBase):
|
|
|
|
|
|
@hybrid_property
|
|
|
def allows_creating_users(self):
|
|
|
return True
|
|
|
|
|
|
def use_fake_password(self):
|
|
|
"""
|
|
|
Return a boolean that indicates whether or not we should set the user's
|
|
|
password to a random value when it is authenticated by this plugin.
|
|
|
If your plugin provides authentication, then you will generally
|
|
|
want this.
|
|
|
|
|
|
:returns: boolean
|
|
|
"""
|
|
|
raise NotImplementedError("Not implemented in base class")
|
|
|
|
|
|
def _authenticate(self, userobj, username, passwd, settings, **kwargs):
|
|
|
# at this point _authenticate calls plugin's `auth()` function
|
|
|
auth = super(RhodeCodeExternalAuthPlugin, self)._authenticate(
|
|
|
userobj, username, passwd, settings, **kwargs)
|
|
|
|
|
|
if auth:
|
|
|
# maybe plugin will clean the username ?
|
|
|
# we should use the return value
|
|
|
username = auth['username']
|
|
|
|
|
|
# if external source tells us that user is not active, we should
|
|
|
# skip rest of the process. This can prevent from creating users in
|
|
|
# RhodeCode when using external authentication, but if it's
|
|
|
# inactive user we shouldn't create that user anyway
|
|
|
if auth['active_from_extern'] is False:
|
|
|
log.warning(
|
|
|
"User %s authenticated against %s, but is inactive",
|
|
|
username, self.__module__)
|
|
|
return None
|
|
|
|
|
|
cur_user = User.get_by_username(username, case_insensitive=True)
|
|
|
is_user_existing = cur_user is not None
|
|
|
|
|
|
if is_user_existing:
|
|
|
log.debug('Syncing user `%s` from '
|
|
|
'`%s` plugin', username, self.name)
|
|
|
else:
|
|
|
log.debug('Creating non existing user `%s` from '
|
|
|
'`%s` plugin', username, self.name)
|
|
|
|
|
|
if self.allows_creating_users:
|
|
|
log.debug('Plugin `%s` allows to '
|
|
|
'create new users', self.name)
|
|
|
else:
|
|
|
log.debug('Plugin `%s` does not allow to '
|
|
|
'create new users', self.name)
|
|
|
|
|
|
user_parameters = {
|
|
|
'username': username,
|
|
|
'email': auth["email"],
|
|
|
'firstname': auth["firstname"],
|
|
|
'lastname': auth["lastname"],
|
|
|
'active': auth["active"],
|
|
|
'admin': auth["admin"],
|
|
|
'extern_name': auth["extern_name"],
|
|
|
'extern_type': self.name,
|
|
|
'plugin': self,
|
|
|
'allow_to_create_user': self.allows_creating_users,
|
|
|
}
|
|
|
|
|
|
if not is_user_existing:
|
|
|
if self.use_fake_password():
|
|
|
# Randomize the PW because we don't need it, but don't want
|
|
|
# them blank either
|
|
|
passwd = PasswordGenerator().gen_password(length=16)
|
|
|
user_parameters['password'] = passwd
|
|
|
else:
|
|
|
# Since the password is required by create_or_update method of
|
|
|
# UserModel, we need to set it explicitly.
|
|
|
# The create_or_update method is smart and recognises the
|
|
|
# password hashes as well.
|
|
|
user_parameters['password'] = cur_user.password
|
|
|
|
|
|
# we either create or update users, we also pass the flag
|
|
|
# that controls if this method can actually do that.
|
|
|
# raises NotAllowedToCreateUserError if it cannot, and we try to.
|
|
|
user = UserModel().create_or_update(**user_parameters)
|
|
|
Session().flush()
|
|
|
# enforce user is just in given groups, all of them has to be ones
|
|
|
# created from plugins. We store this info in _group_data JSON
|
|
|
# field
|
|
|
|
|
|
if auth['user_group_sync']:
|
|
|
try:
|
|
|
groups = auth['groups'] or []
|
|
|
log.debug(
|
|
|
'Performing user_group sync based on set `%s` '
|
|
|
'returned by `%s` plugin', groups, self.name)
|
|
|
UserGroupModel().enforce_groups(user, groups, self.name)
|
|
|
except Exception:
|
|
|
# for any reason group syncing fails, we should
|
|
|
# proceed with login
|
|
|
log.error(traceback.format_exc())
|
|
|
|
|
|
Session().commit()
|
|
|
return auth
|
|
|
|
|
|
|
|
|
class AuthLdapBase(object):
|
|
|
|
|
|
@classmethod
|
|
|
def _build_servers(cls, ldap_server_type, ldap_server, port, use_resolver=True):
|
|
|
|
|
|
def host_resolver(host, port, full_resolve=True):
|
|
|
"""
|
|
|
Main work for this function is to prevent ldap connection issues,
|
|
|
and detect them early using a "greenified" sockets
|
|
|
"""
|
|
|
host = host.strip()
|
|
|
if not full_resolve:
|
|
|
return '{}:{}'.format(host, port)
|
|
|
|
|
|
log.debug('LDAP: Resolving IP for LDAP host %s', host)
|
|
|
try:
|
|
|
ip = socket.gethostbyname(host)
|
|
|
log.debug('Got LDAP server %s ip %s', host, ip)
|
|
|
except Exception:
|
|
|
raise LdapConnectionError(
|
|
|
'Failed to resolve host: `{}`'.format(host))
|
|
|
|
|
|
log.debug('LDAP: Checking if IP %s is accessible', ip)
|
|
|
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
|
try:
|
|
|
s.connect((ip, int(port)))
|
|
|
s.shutdown(socket.SHUT_RD)
|
|
|
except Exception:
|
|
|
raise LdapConnectionError(
|
|
|
'Failed to connect to host: `{}:{}`'.format(host, port))
|
|
|
|
|
|
return '{}:{}'.format(host, port)
|
|
|
|
|
|
if len(ldap_server) == 1:
|
|
|
# in case of single server use resolver to detect potential
|
|
|
# connection issues
|
|
|
full_resolve = True
|
|
|
else:
|
|
|
full_resolve = False
|
|
|
|
|
|
return ', '.join(
|
|
|
["{}://{}".format(
|
|
|
ldap_server_type,
|
|
|
host_resolver(host, port, full_resolve=use_resolver and full_resolve))
|
|
|
for host in ldap_server])
|
|
|
|
|
|
@classmethod
|
|
|
def _get_server_list(cls, servers):
|
|
|
return map(string.strip, servers.split(','))
|
|
|
|
|
|
@classmethod
|
|
|
def get_uid(cls, username, server_addresses):
|
|
|
uid = username
|
|
|
for server_addr in server_addresses:
|
|
|
uid = chop_at(username, "@%s" % server_addr)
|
|
|
return uid
|
|
|
|
|
|
@classmethod
|
|
|
def validate_username(cls, username):
|
|
|
if "," in username:
|
|
|
raise LdapUsernameError(
|
|
|
"invalid character `,` in username: `{}`".format(username))
|
|
|
|
|
|
@classmethod
|
|
|
def validate_password(cls, username, password):
|
|
|
if not password:
|
|
|
msg = "Authenticating user %s with blank password not allowed"
|
|
|
log.warning(msg, username)
|
|
|
raise LdapPasswordError(msg)
|
|
|
|
|
|
|
|
|
def loadplugin(plugin_id):
|
|
|
"""
|
|
|
Loads and returns an instantiated authentication plugin.
|
|
|
Returns the RhodeCodeAuthPluginBase subclass on success,
|
|
|
or None on failure.
|
|
|
"""
|
|
|
# TODO: Disusing pyramids thread locals to retrieve the registry.
|
|
|
authn_registry = get_authn_registry()
|
|
|
plugin = authn_registry.get_plugin(plugin_id)
|
|
|
if plugin is None:
|
|
|
log.error('Authentication plugin not found: "%s"', plugin_id)
|
|
|
return plugin
|
|
|
|
|
|
|
|
|
def get_authn_registry(registry=None):
|
|
|
registry = registry or get_current_registry()
|
|
|
authn_registry = registry.queryUtility(IAuthnPluginRegistry)
|
|
|
return authn_registry
|
|
|
|
|
|
|
|
|
def authenticate(username, password, environ=None, auth_type=None,
|
|
|
skip_missing=False, registry=None, acl_repo_name=None):
|
|
|
"""
|
|
|
Authentication function used for access control,
|
|
|
It tries to authenticate based on enabled authentication modules.
|
|
|
|
|
|
:param username: username can be empty for headers auth
|
|
|
:param password: password can be empty for headers auth
|
|
|
:param environ: environ headers passed for headers auth
|
|
|
:param auth_type: type of authentication, either `HTTP_TYPE` or `VCS_TYPE`
|
|
|
:param skip_missing: ignores plugins that are in db but not in environment
|
|
|
:returns: None if auth failed, plugin_user dict if auth is correct
|
|
|
"""
|
|
|
if not auth_type or auth_type not in [HTTP_TYPE, VCS_TYPE]:
|
|
|
raise ValueError('auth type must be on of http, vcs got "%s" instead'
|
|
|
% auth_type)
|
|
|
headers_only = environ and not (username and password)
|
|
|
|
|
|
authn_registry = get_authn_registry(registry)
|
|
|
|
|
|
plugins_to_check = authn_registry.get_plugins_for_authentication()
|
|
|
log.debug('Starting ordered authentication chain using %s plugins',
|
|
|
[x.name for x in plugins_to_check])
|
|
|
for plugin in plugins_to_check:
|
|
|
plugin.set_auth_type(auth_type)
|
|
|
plugin.set_calling_scope_repo(acl_repo_name)
|
|
|
|
|
|
if headers_only and not plugin.is_headers_auth:
|
|
|
log.debug('Auth type is for headers only and plugin `%s` is not '
|
|
|
'headers plugin, skipping...', plugin.get_id())
|
|
|
continue
|
|
|
|
|
|
log.debug('Trying authentication using ** %s **', plugin.get_id())
|
|
|
|
|
|
# load plugin settings from RhodeCode database
|
|
|
plugin_settings = plugin.get_settings()
|
|
|
plugin_sanitized_settings = plugin.log_safe_settings(plugin_settings)
|
|
|
log.debug('Plugin `%s` settings:%s', plugin.get_id(), plugin_sanitized_settings)
|
|
|
|
|
|
# use plugin's method of user extraction.
|
|
|
user = plugin.get_user(username, environ=environ,
|
|
|
settings=plugin_settings)
|
|
|
display_user = user.username if user else username
|
|
|
log.debug(
|
|
|
'Plugin %s extracted user is `%s`', plugin.get_id(), display_user)
|
|
|
|
|
|
if not plugin.allows_authentication_from(user):
|
|
|
log.debug('Plugin %s does not accept user `%s` for authentication',
|
|
|
plugin.get_id(), display_user)
|
|
|
continue
|
|
|
else:
|
|
|
log.debug('Plugin %s accepted user `%s` for authentication',
|
|
|
plugin.get_id(), display_user)
|
|
|
|
|
|
log.info('Authenticating user `%s` using %s plugin',
|
|
|
display_user, plugin.get_id())
|
|
|
|
|
|
plugin_cache_active, cache_ttl = plugin.get_ttl_cache(plugin_settings)
|
|
|
|
|
|
log.debug('AUTH_CACHE_TTL for plugin `%s` active: %s (TTL: %s)',
|
|
|
plugin.get_id(), plugin_cache_active, cache_ttl)
|
|
|
|
|
|
user_id = user.user_id if user else None
|
|
|
# don't cache for empty users
|
|
|
plugin_cache_active = plugin_cache_active and user_id
|
|
|
cache_namespace_uid = 'cache_user_auth.{}'.format(user_id)
|
|
|
region = rc_cache.get_or_create_region('cache_perms', cache_namespace_uid)
|
|
|
|
|
|
@region.conditional_cache_on_arguments(namespace=cache_namespace_uid,
|
|
|
expiration_time=cache_ttl,
|
|
|
condition=plugin_cache_active)
|
|
|
def compute_auth(
|
|
|
cache_name, plugin_name, username, password):
|
|
|
|
|
|
# _authenticate is a wrapper for .auth() method of plugin.
|
|
|
# it checks if .auth() sends proper data.
|
|
|
# For RhodeCodeExternalAuthPlugin it also maps users to
|
|
|
# Database and maps the attributes returned from .auth()
|
|
|
# to RhodeCode database. If this function returns data
|
|
|
# then auth is correct.
|
|
|
log.debug('Running plugin `%s` _authenticate method '
|
|
|
'using username and password', plugin.get_id())
|
|
|
return plugin._authenticate(
|
|
|
user, username, password, plugin_settings,
|
|
|
environ=environ or {})
|
|
|
|
|
|
start = time.time()
|
|
|
# for environ based auth, password can be empty, but then the validation is
|
|
|
# on the server that fills in the env data needed for authentication
|
|
|
plugin_user = compute_auth('auth', plugin.name, username, (password or ''))
|
|
|
|
|
|
auth_time = time.time() - start
|
|
|
log.debug('Authentication for plugin `%s` completed in %.4fs, '
|
|
|
'expiration time of fetched cache %.1fs.',
|
|
|
plugin.get_id(), auth_time, cache_ttl)
|
|
|
|
|
|
log.debug('PLUGIN USER DATA: %s', plugin_user)
|
|
|
|
|
|
if plugin_user:
|
|
|
log.debug('Plugin returned proper authentication data')
|
|
|
return plugin_user
|
|
|
# we failed to Auth because .auth() method didn't return proper user
|
|
|
log.debug("User `%s` failed to authenticate against %s",
|
|
|
display_user, plugin.get_id())
|
|
|
|
|
|
# case when we failed to authenticate against all defined plugins
|
|
|
return None
|
|
|
|
|
|
|
|
|
def chop_at(s, sub, inclusive=False):
|
|
|
"""Truncate string ``s`` at the first occurrence of ``sub``.
|
|
|
|
|
|
If ``inclusive`` is true, truncate just after ``sub`` rather than at it.
|
|
|
|
|
|
>>> chop_at("plutocratic brats", "rat")
|
|
|
'plutoc'
|
|
|
>>> chop_at("plutocratic brats", "rat", True)
|
|
|
'plutocrat'
|
|
|
"""
|
|
|
pos = s.find(sub)
|
|
|
if pos == -1:
|
|
|
return s
|
|
|
if inclusive:
|
|
|
return s[:pos+len(sub)]
|
|
|
return s[:pos]
|
|
|
|
