292 lines
14 KiB
Python
292 lines
14 KiB
Python
# Copyright 2020 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.
|
|
from typing import Any, Dict, Optional
|
|
|
|
import attr
|
|
|
|
from ._base import Config
|
|
|
|
|
|
@attr.s(frozen=True)
|
|
class SsoAttributeRequirement:
|
|
"""Object describing a single requirement for SSO attributes."""
|
|
|
|
attribute = attr.ib(type=str)
|
|
# If a value is not given, than the attribute must simply exist.
|
|
value = attr.ib(type=Optional[str])
|
|
|
|
JSON_SCHEMA = {
|
|
"type": "object",
|
|
"properties": {"attribute": {"type": "string"}, "value": {"type": "string"}},
|
|
"required": ["attribute", "value"],
|
|
}
|
|
|
|
|
|
class SSOConfig(Config):
|
|
"""SSO Configuration"""
|
|
|
|
section = "sso"
|
|
|
|
def read_config(self, config, **kwargs):
|
|
sso_config: Dict[str, Any] = config.get("sso") or {}
|
|
|
|
# The sso-specific template_dir
|
|
self.sso_template_dir = sso_config.get("template_dir")
|
|
|
|
# Read templates from disk
|
|
(
|
|
self.sso_login_idp_picker_template,
|
|
self.sso_redirect_confirm_template,
|
|
self.sso_auth_confirm_template,
|
|
self.sso_error_template,
|
|
sso_account_deactivated_template,
|
|
sso_auth_success_template,
|
|
self.sso_auth_bad_user_template,
|
|
) = self.read_templates(
|
|
[
|
|
"sso_login_idp_picker.html",
|
|
"sso_redirect_confirm.html",
|
|
"sso_auth_confirm.html",
|
|
"sso_error.html",
|
|
"sso_account_deactivated.html",
|
|
"sso_auth_success.html",
|
|
"sso_auth_bad_user.html",
|
|
],
|
|
self.sso_template_dir,
|
|
)
|
|
|
|
# These templates have no placeholders, so render them here
|
|
self.sso_account_deactivated_template = (
|
|
sso_account_deactivated_template.render()
|
|
)
|
|
self.sso_auth_success_template = sso_auth_success_template.render()
|
|
|
|
self.sso_client_whitelist = sso_config.get("client_whitelist") or []
|
|
|
|
self.sso_update_profile_information = (
|
|
sso_config.get("update_profile_information") or False
|
|
)
|
|
|
|
# Attempt to also whitelist the server's login fallback, since that fallback sets
|
|
# the redirect URL to itself (so it can process the login token then return
|
|
# gracefully to the client). This would make it pointless to ask the user for
|
|
# confirmation, since the URL the confirmation page would be showing wouldn't be
|
|
# the client's.
|
|
# public_baseurl is an optional setting, so we only add the fallback's URL to the
|
|
# list if it's provided (because we can't figure out what that URL is otherwise).
|
|
if self.public_baseurl:
|
|
login_fallback_url = self.public_baseurl + "_matrix/static/client/login"
|
|
self.sso_client_whitelist.append(login_fallback_url)
|
|
|
|
def generate_config_section(self, **kwargs):
|
|
return """\
|
|
# Additional settings to use with single-sign on systems such as OpenID Connect,
|
|
# SAML2 and CAS.
|
|
#
|
|
sso:
|
|
# A list of client URLs which are whitelisted so that the user does not
|
|
# have to confirm giving access to their account to the URL. Any client
|
|
# whose URL starts with an entry in the following list will not be subject
|
|
# to an additional confirmation step after the SSO login is completed.
|
|
#
|
|
# WARNING: An entry such as "https://my.client" is insecure, because it
|
|
# will also match "https://my.client.evil.site", exposing your users to
|
|
# phishing attacks from evil.site. To avoid this, include a slash after the
|
|
# hostname: "https://my.client/".
|
|
#
|
|
# If public_baseurl is set, then the login fallback page (used by clients
|
|
# that don't natively support the required login flows) is whitelisted in
|
|
# addition to any URLs in this list.
|
|
#
|
|
# By default, this list is empty.
|
|
#
|
|
#client_whitelist:
|
|
# - https://riot.im/develop
|
|
# - https://my.custom.client/
|
|
|
|
# Uncomment to keep a user's profile fields in sync with information from
|
|
# the identity provider. Currently only syncing the displayname is
|
|
# supported. Fields are checked on every SSO login, and are updated
|
|
# if necessary.
|
|
#
|
|
# Note that enabling this option will override user profile information,
|
|
# regardless of whether users have opted-out of syncing that
|
|
# information when first signing in. Defaults to false.
|
|
#
|
|
#update_profile_information: true
|
|
|
|
# Directory in which Synapse will try to find the template files below.
|
|
# If not set, or the files named below are not found within the template
|
|
# directory, default templates from within the Synapse package will be used.
|
|
#
|
|
# Synapse will look for the following templates in this directory:
|
|
#
|
|
# * HTML page to prompt the user to choose an Identity Provider during
|
|
# login: 'sso_login_idp_picker.html'.
|
|
#
|
|
# This is only used if multiple SSO Identity Providers are configured.
|
|
#
|
|
# When rendering, this template is given the following variables:
|
|
# * redirect_url: the URL that the user will be redirected to after
|
|
# login.
|
|
#
|
|
# * server_name: the homeserver's name.
|
|
#
|
|
# * providers: a list of available Identity Providers. Each element is
|
|
# an object with the following attributes:
|
|
#
|
|
# * idp_id: unique identifier for the IdP
|
|
# * idp_name: user-facing name for the IdP
|
|
# * idp_icon: if specified in the IdP config, an MXC URI for an icon
|
|
# for the IdP
|
|
# * idp_brand: if specified in the IdP config, a textual identifier
|
|
# for the brand of the IdP
|
|
#
|
|
# The rendered HTML page should contain a form which submits its results
|
|
# back as a GET request, with the following query parameters:
|
|
#
|
|
# * redirectUrl: the client redirect URI (ie, the `redirect_url` passed
|
|
# to the template)
|
|
#
|
|
# * idp: the 'idp_id' of the chosen IDP.
|
|
#
|
|
# * HTML page to prompt new users to enter a userid and confirm other
|
|
# details: 'sso_auth_account_details.html'. This is only shown if the
|
|
# SSO implementation (with any user_mapping_provider) does not return
|
|
# a localpart.
|
|
#
|
|
# When rendering, this template is given the following variables:
|
|
#
|
|
# * server_name: the homeserver's name.
|
|
#
|
|
# * idp: details of the SSO Identity Provider that the user logged in
|
|
# with: an object with the following attributes:
|
|
#
|
|
# * idp_id: unique identifier for the IdP
|
|
# * idp_name: user-facing name for the IdP
|
|
# * idp_icon: if specified in the IdP config, an MXC URI for an icon
|
|
# for the IdP
|
|
# * idp_brand: if specified in the IdP config, a textual identifier
|
|
# for the brand of the IdP
|
|
#
|
|
# * user_attributes: an object containing details about the user that
|
|
# we received from the IdP. May have the following attributes:
|
|
#
|
|
# * display_name: the user's display_name
|
|
# * emails: a list of email addresses
|
|
#
|
|
# The template should render a form which submits the following fields:
|
|
#
|
|
# * username: the localpart of the user's chosen user id
|
|
#
|
|
# * HTML page allowing the user to consent to the server's terms and
|
|
# conditions. This is only shown for new users, and only if
|
|
# `user_consent.require_at_registration` is set.
|
|
#
|
|
# When rendering, this template is given the following variables:
|
|
#
|
|
# * server_name: the homeserver's name.
|
|
#
|
|
# * user_id: the user's matrix proposed ID.
|
|
#
|
|
# * user_profile.display_name: the user's proposed display name, if any.
|
|
#
|
|
# * consent_version: the version of the terms that the user will be
|
|
# shown
|
|
#
|
|
# * terms_url: a link to the page showing the terms.
|
|
#
|
|
# The template should render a form which submits the following fields:
|
|
#
|
|
# * accepted_version: the version of the terms accepted by the user
|
|
# (ie, 'consent_version' from the input variables).
|
|
#
|
|
# * HTML page for a confirmation step before redirecting back to the client
|
|
# with the login token: 'sso_redirect_confirm.html'.
|
|
#
|
|
# When rendering, this template is given the following variables:
|
|
#
|
|
# * redirect_url: the URL the user is about to be redirected to.
|
|
#
|
|
# * display_url: the same as `redirect_url`, but with the query
|
|
# parameters stripped. The intention is to have a
|
|
# human-readable URL to show to users, not to use it as
|
|
# the final address to redirect to.
|
|
#
|
|
# * server_name: the homeserver's name.
|
|
#
|
|
# * new_user: a boolean indicating whether this is the user's first time
|
|
# logging in.
|
|
#
|
|
# * user_id: the user's matrix ID.
|
|
#
|
|
# * user_profile.avatar_url: an MXC URI for the user's avatar, if any.
|
|
# None if the user has not set an avatar.
|
|
#
|
|
# * user_profile.display_name: the user's display name. None if the user
|
|
# has not set a display name.
|
|
#
|
|
# * HTML page which notifies the user that they are authenticating to confirm
|
|
# an operation on their account during the user interactive authentication
|
|
# process: 'sso_auth_confirm.html'.
|
|
#
|
|
# When rendering, this template is given the following variables:
|
|
# * redirect_url: the URL the user is about to be redirected to.
|
|
#
|
|
# * description: the operation which the user is being asked to confirm
|
|
#
|
|
# * idp: details of the Identity Provider that we will use to confirm
|
|
# the user's identity: an object with the following attributes:
|
|
#
|
|
# * idp_id: unique identifier for the IdP
|
|
# * idp_name: user-facing name for the IdP
|
|
# * idp_icon: if specified in the IdP config, an MXC URI for an icon
|
|
# for the IdP
|
|
# * idp_brand: if specified in the IdP config, a textual identifier
|
|
# for the brand of the IdP
|
|
#
|
|
# * HTML page shown after a successful user interactive authentication session:
|
|
# 'sso_auth_success.html'.
|
|
#
|
|
# Note that this page must include the JavaScript which notifies of a successful authentication
|
|
# (see https://matrix.org/docs/spec/client_server/r0.6.0#fallback).
|
|
#
|
|
# This template has no additional variables.
|
|
#
|
|
# * HTML page shown after a user-interactive authentication session which
|
|
# does not map correctly onto the expected user: 'sso_auth_bad_user.html'.
|
|
#
|
|
# When rendering, this template is given the following variables:
|
|
# * server_name: the homeserver's name.
|
|
# * user_id_to_verify: the MXID of the user that we are trying to
|
|
# validate.
|
|
#
|
|
# * HTML page shown during single sign-on if a deactivated user (according to Synapse's database)
|
|
# attempts to login: 'sso_account_deactivated.html'.
|
|
#
|
|
# This template has no additional variables.
|
|
#
|
|
# * HTML page to display to users if something goes wrong during the
|
|
# OpenID Connect authentication process: 'sso_error.html'.
|
|
#
|
|
# When rendering, this template is given two variables:
|
|
# * error: the technical name of the error
|
|
# * error_description: a human-readable message for the error
|
|
#
|
|
# You can see the default templates at:
|
|
# https://github.com/matrix-org/synapse/tree/master/synapse/res/templates
|
|
#
|
|
#template_dir: "res/templates"
|
|
"""
|