mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
synced 2024-12-10 09:04:21 -05:00
409c62b27b
Add a linting script that enforces all boolean values in the default config be lowercase. This has annoyed me for a while so I decided to fix it.
264 lines
9.4 KiB
Python
264 lines
9.4 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2018 New Vector Ltd
|
|
# Copyright 2019 The Matrix.org Foundation C.I.C.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import re
|
|
|
|
from synapse.python_dependencies import DependencyException, check_requirements
|
|
from synapse.types import (
|
|
map_username_to_mxid_localpart,
|
|
mxid_localpart_allowed_characters,
|
|
)
|
|
from synapse.util.module_loader import load_python_module
|
|
|
|
from ._base import Config, ConfigError
|
|
|
|
|
|
def _dict_merge(merge_dict, into_dict):
|
|
"""Do a deep merge of two dicts
|
|
|
|
Recursively merges `merge_dict` into `into_dict`:
|
|
* For keys where both `merge_dict` and `into_dict` have a dict value, the values
|
|
are recursively merged
|
|
* For all other keys, the values in `into_dict` (if any) are overwritten with
|
|
the value from `merge_dict`.
|
|
|
|
Args:
|
|
merge_dict (dict): dict to merge
|
|
into_dict (dict): target dict
|
|
"""
|
|
for k, v in merge_dict.items():
|
|
if k not in into_dict:
|
|
into_dict[k] = v
|
|
continue
|
|
|
|
current_val = into_dict[k]
|
|
|
|
if isinstance(v, dict) and isinstance(current_val, dict):
|
|
_dict_merge(v, current_val)
|
|
continue
|
|
|
|
# otherwise we just overwrite
|
|
into_dict[k] = v
|
|
|
|
|
|
class SAML2Config(Config):
|
|
section = "saml2"
|
|
|
|
def read_config(self, config, **kwargs):
|
|
self.saml2_enabled = False
|
|
|
|
saml2_config = config.get("saml2_config")
|
|
|
|
if not saml2_config or not saml2_config.get("enabled", True):
|
|
return
|
|
|
|
if not saml2_config.get("sp_config") and not saml2_config.get("config_path"):
|
|
return
|
|
|
|
try:
|
|
check_requirements("saml2")
|
|
except DependencyException as e:
|
|
raise ConfigError(e.message)
|
|
|
|
self.saml2_enabled = True
|
|
|
|
self.saml2_mxid_source_attribute = saml2_config.get(
|
|
"mxid_source_attribute", "uid"
|
|
)
|
|
|
|
self.saml2_grandfathered_mxid_source_attribute = saml2_config.get(
|
|
"grandfathered_mxid_source_attribute", "uid"
|
|
)
|
|
|
|
saml2_config_dict = self._default_saml_config_dict()
|
|
_dict_merge(
|
|
merge_dict=saml2_config.get("sp_config", {}), into_dict=saml2_config_dict
|
|
)
|
|
|
|
config_path = saml2_config.get("config_path", None)
|
|
if config_path is not None:
|
|
mod = load_python_module(config_path)
|
|
_dict_merge(merge_dict=mod.CONFIG, into_dict=saml2_config_dict)
|
|
|
|
import saml2.config
|
|
|
|
self.saml2_sp_config = saml2.config.SPConfig()
|
|
self.saml2_sp_config.load(saml2_config_dict)
|
|
|
|
# session lifetime: in milliseconds
|
|
self.saml2_session_lifetime = self.parse_duration(
|
|
saml2_config.get("saml_session_lifetime", "5m")
|
|
)
|
|
|
|
mapping = saml2_config.get("mxid_mapping", "hexencode")
|
|
try:
|
|
self.saml2_mxid_mapper = MXID_MAPPER_MAP[mapping]
|
|
except KeyError:
|
|
raise ConfigError("%s is not a known mxid_mapping" % (mapping,))
|
|
|
|
def _default_saml_config_dict(self):
|
|
import saml2
|
|
|
|
public_baseurl = self.public_baseurl
|
|
if public_baseurl is None:
|
|
raise ConfigError("saml2_config requires a public_baseurl to be set")
|
|
|
|
required_attributes = {"uid", self.saml2_mxid_source_attribute}
|
|
|
|
optional_attributes = {"displayName"}
|
|
if self.saml2_grandfathered_mxid_source_attribute:
|
|
optional_attributes.add(self.saml2_grandfathered_mxid_source_attribute)
|
|
optional_attributes -= required_attributes
|
|
|
|
metadata_url = public_baseurl + "_matrix/saml2/metadata.xml"
|
|
response_url = public_baseurl + "_matrix/saml2/authn_response"
|
|
return {
|
|
"entityid": metadata_url,
|
|
"service": {
|
|
"sp": {
|
|
"endpoints": {
|
|
"assertion_consumer_service": [
|
|
(response_url, saml2.BINDING_HTTP_POST)
|
|
]
|
|
},
|
|
"required_attributes": list(required_attributes),
|
|
"optional_attributes": list(optional_attributes),
|
|
# "name_id_format": saml2.saml.NAMEID_FORMAT_PERSISTENT,
|
|
}
|
|
},
|
|
}
|
|
|
|
def generate_config_section(self, config_dir_path, server_name, **kwargs):
|
|
return """\
|
|
# Enable SAML2 for registration and login. Uses pysaml2.
|
|
#
|
|
# At least one of `sp_config` or `config_path` must be set in this section to
|
|
# enable SAML login.
|
|
#
|
|
# (You will probably also want to set the following options to `false` to
|
|
# disable the regular login/registration flows:
|
|
# * enable_registration
|
|
# * password_config.enabled
|
|
#
|
|
# Once SAML support is enabled, a metadata file will be exposed at
|
|
# https://<server>:<port>/_matrix/saml2/metadata.xml, which you may be able to
|
|
# use to configure your SAML IdP with. Alternatively, you can manually configure
|
|
# the IdP to use an ACS location of
|
|
# https://<server>:<port>/_matrix/saml2/authn_response.
|
|
#
|
|
saml2_config:
|
|
# `sp_config` is the configuration for the pysaml2 Service Provider.
|
|
# See pysaml2 docs for format of config.
|
|
#
|
|
# Default values will be used for the 'entityid' and 'service' settings,
|
|
# so it is not normally necessary to specify them unless you need to
|
|
# override them.
|
|
#
|
|
#sp_config:
|
|
# # point this to the IdP's metadata. You can use either a local file or
|
|
# # (preferably) a URL.
|
|
# metadata:
|
|
# #local: ["saml2/idp.xml"]
|
|
# remote:
|
|
# - url: https://our_idp/metadata.xml
|
|
#
|
|
# # By default, the user has to go to our login page first. If you'd like
|
|
# # to allow IdP-initiated login, set 'allow_unsolicited: true' in a
|
|
# # 'service.sp' section:
|
|
# #
|
|
# #service:
|
|
# # sp:
|
|
# # allow_unsolicited: true
|
|
#
|
|
# # The examples below are just used to generate our metadata xml, and you
|
|
# # may well not need them, depending on your setup. Alternatively you
|
|
# # may need a whole lot more detail - see the pysaml2 docs!
|
|
#
|
|
# description: ["My awesome SP", "en"]
|
|
# name: ["Test SP", "en"]
|
|
#
|
|
# organization:
|
|
# name: Example com
|
|
# display_name:
|
|
# - ["Example co", "en"]
|
|
# url: "http://example.com"
|
|
#
|
|
# contact_person:
|
|
# - given_name: Bob
|
|
# sur_name: "the Sysadmin"
|
|
# email_address": ["admin@example.com"]
|
|
# contact_type": technical
|
|
|
|
# Instead of putting the config inline as above, you can specify a
|
|
# separate pysaml2 configuration file:
|
|
#
|
|
#config_path: "%(config_dir_path)s/sp_conf.py"
|
|
|
|
# the lifetime of a SAML session. This defines how long a user has to
|
|
# complete the authentication process, if allow_unsolicited is unset.
|
|
# The default is 5 minutes.
|
|
#
|
|
#saml_session_lifetime: 5m
|
|
|
|
# The SAML attribute (after mapping via the attribute maps) to use to derive
|
|
# the Matrix ID from. 'uid' by default.
|
|
#
|
|
#mxid_source_attribute: displayName
|
|
|
|
# The mapping system to use for mapping the saml attribute onto a matrix ID.
|
|
# Options include:
|
|
# * 'hexencode' (which maps unpermitted characters to '=xx')
|
|
# * 'dotreplace' (which replaces unpermitted characters with '.').
|
|
# The default is 'hexencode'.
|
|
#
|
|
#mxid_mapping: dotreplace
|
|
|
|
# In previous versions of synapse, the mapping from SAML attribute to MXID was
|
|
# always calculated dynamically rather than stored in a table. For backwards-
|
|
# compatibility, we will look for user_ids matching such a pattern before
|
|
# creating a new account.
|
|
#
|
|
# This setting controls the SAML attribute which will be used for this
|
|
# backwards-compatibility lookup. Typically it should be 'uid', but if the
|
|
# attribute maps are changed, it may be necessary to change it.
|
|
#
|
|
# The default is 'uid'.
|
|
#
|
|
#grandfathered_mxid_source_attribute: upn
|
|
""" % {
|
|
"config_dir_path": config_dir_path
|
|
}
|
|
|
|
|
|
DOT_REPLACE_PATTERN = re.compile(
|
|
("[^%s]" % (re.escape("".join(mxid_localpart_allowed_characters)),))
|
|
)
|
|
|
|
|
|
def dot_replace_for_mxid(username: str) -> str:
|
|
username = username.lower()
|
|
username = DOT_REPLACE_PATTERN.sub(".", username)
|
|
|
|
# regular mxids aren't allowed to start with an underscore either
|
|
username = re.sub("^_", "", username)
|
|
return username
|
|
|
|
|
|
MXID_MAPPER_MAP = {
|
|
"hexencode": map_username_to_mxid_localpart,
|
|
"dotreplace": dot_replace_for_mxid,
|
|
}
|