synapse-product/synapse/config/registration.py

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# Copyright 2015, 2016 OpenMarket Ltd
# Copyright 2021 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 argparse
from typing import Optional
from synapse.api.constants import RoomCreationPreset
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from synapse.config._base import Config, ConfigError
from synapse.types import RoomAlias, UserID
from synapse.util.stringutils import random_string_with_symbols, strtobool
class RegistrationConfig(Config):
section = "registration"
def read_config(self, config, **kwargs):
self.enable_registration = strtobool(
str(config.get("enable_registration", False))
)
if "disable_registration" in config:
self.enable_registration = not strtobool(
str(config["disable_registration"])
)
self.registrations_require_3pid = config.get("registrations_require_3pid", [])
self.allowed_local_3pids = config.get("allowed_local_3pids", [])
self.enable_3pid_lookup = config.get("enable_3pid_lookup", True)
self.registration_requires_token = config.get(
"registration_requires_token", False
)
self.registration_shared_secret = config.get("registration_shared_secret")
self.bcrypt_rounds = config.get("bcrypt_rounds", 12)
account_threepid_delegates = config.get("account_threepid_delegates") or {}
self.account_threepid_delegate_email = account_threepid_delegates.get("email")
self.account_threepid_delegate_msisdn = account_threepid_delegates.get("msisdn")
self.default_identity_server = config.get("default_identity_server")
self.allow_guest_access = config.get("allow_guest_access", False)
if config.get("invite_3pid_guest", False):
raise ConfigError("invite_3pid_guest is no longer supported")
self.auto_join_rooms = config.get("auto_join_rooms", [])
for room_alias in self.auto_join_rooms:
if not RoomAlias.is_valid(room_alias):
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raise ConfigError("Invalid auto_join_rooms entry %s" % (room_alias,))
# Options for creating auto-join rooms if they do not exist yet.
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self.autocreate_auto_join_rooms = config.get("autocreate_auto_join_rooms", True)
self.autocreate_auto_join_rooms_federated = config.get(
"autocreate_auto_join_rooms_federated", True
)
self.autocreate_auto_join_room_preset = (
config.get("autocreate_auto_join_room_preset")
or RoomCreationPreset.PUBLIC_CHAT
)
self.auto_join_room_requires_invite = self.autocreate_auto_join_room_preset in {
RoomCreationPreset.PRIVATE_CHAT,
RoomCreationPreset.TRUSTED_PRIVATE_CHAT,
}
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# Pull the creator/inviter from the configuration, this gets used to
# send invites for invite-only rooms.
mxid_localpart = config.get("auto_join_mxid_localpart")
self.auto_join_user_id = None
if mxid_localpart:
# Convert the localpart to a full mxid.
self.auto_join_user_id = UserID(
mxid_localpart, self.root.server.server_name
).to_string()
if self.autocreate_auto_join_rooms:
# Ensure the preset is a known value.
if self.autocreate_auto_join_room_preset not in {
RoomCreationPreset.PUBLIC_CHAT,
RoomCreationPreset.PRIVATE_CHAT,
RoomCreationPreset.TRUSTED_PRIVATE_CHAT,
}:
raise ConfigError("Invalid value for autocreate_auto_join_room_preset")
# If the preset requires invitations to be sent, ensure there's a
# configured user to send them from.
if self.auto_join_room_requires_invite:
if not mxid_localpart:
raise ConfigError(
"The configuration option `auto_join_mxid_localpart` is required if "
"`autocreate_auto_join_room_preset` is set to private_chat or trusted_private_chat, such that "
"Synapse knows who to send invitations from. Please "
"configure `auto_join_mxid_localpart`."
)
self.auto_join_rooms_for_guests = config.get("auto_join_rooms_for_guests", True)
self.enable_set_displayname = config.get("enable_set_displayname", True)
self.enable_set_avatar_url = config.get("enable_set_avatar_url", True)
self.enable_3pid_changes = config.get("enable_3pid_changes", True)
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self.disable_msisdn_registration = config.get(
"disable_msisdn_registration", False
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)
session_lifetime = config.get("session_lifetime")
if session_lifetime is not None:
session_lifetime = self.parse_duration(session_lifetime)
self.session_lifetime = session_lifetime
# The `refreshable_access_token_lifetime` applies for tokens that can be renewed
# using a refresh token, as per MSC2918.
# If it is `None`, the refresh token mechanism is disabled.
refreshable_access_token_lifetime = config.get(
"refreshable_access_token_lifetime",
"5m",
)
if refreshable_access_token_lifetime is not None:
refreshable_access_token_lifetime = self.parse_duration(
refreshable_access_token_lifetime
)
self.refreshable_access_token_lifetime: Optional[
int
] = refreshable_access_token_lifetime
if (
self.session_lifetime is not None
and "refreshable_access_token_lifetime" in config
):
if self.session_lifetime < self.refreshable_access_token_lifetime:
raise ConfigError(
"Both `session_lifetime` and `refreshable_access_token_lifetime` "
"configuration options have been set, but `refreshable_access_token_lifetime` "
" exceeds `session_lifetime`!"
)
# The `nonrefreshable_access_token_lifetime` applies for tokens that can NOT be
# refreshed using a refresh token.
# If it is None, then these tokens last for the entire length of the session,
# which is infinite by default.
# The intention behind this configuration option is to help with requiring
# all clients to use refresh tokens, if the homeserver administrator requires.
nonrefreshable_access_token_lifetime = config.get(
"nonrefreshable_access_token_lifetime",
None,
)
if nonrefreshable_access_token_lifetime is not None:
nonrefreshable_access_token_lifetime = self.parse_duration(
nonrefreshable_access_token_lifetime
)
self.nonrefreshable_access_token_lifetime = nonrefreshable_access_token_lifetime
if (
self.session_lifetime is not None
and self.nonrefreshable_access_token_lifetime is not None
):
if self.session_lifetime < self.nonrefreshable_access_token_lifetime:
raise ConfigError(
"Both `session_lifetime` and `nonrefreshable_access_token_lifetime` "
"configuration options have been set, but `nonrefreshable_access_token_lifetime` "
" exceeds `session_lifetime`!"
)
refresh_token_lifetime = config.get("refresh_token_lifetime")
if refresh_token_lifetime is not None:
refresh_token_lifetime = self.parse_duration(refresh_token_lifetime)
self.refresh_token_lifetime: Optional[int] = refresh_token_lifetime
if (
self.session_lifetime is not None
and self.refresh_token_lifetime is not None
):
if self.session_lifetime < self.refresh_token_lifetime:
raise ConfigError(
"Both `session_lifetime` and `refresh_token_lifetime` "
"configuration options have been set, but `refresh_token_lifetime` "
" exceeds `session_lifetime`!"
)
# The fallback template used for authenticating using a registration token
self.registration_token_template = self.read_template("registration_token.html")
# The success template used during fallback auth.
self.fallback_success_template = self.read_template("auth_success.html")
def generate_config_section(self, generate_secrets=False, **kwargs):
if generate_secrets:
registration_shared_secret = 'registration_shared_secret: "%s"' % (
random_string_with_symbols(50),
)
else:
registration_shared_secret = "#registration_shared_secret: <PRIVATE STRING>"
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return (
"""\
## Registration ##
#
# Registration can be rate-limited using the parameters in the "Ratelimiting"
# section of this file.
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# Enable registration for new users.
#
#enable_registration: false
# Time that a user's session remains valid for, after they log in.
#
# Note that this is not currently compatible with guest logins.
#
# Note also that this is calculated at login time: changes are not applied
# retrospectively to users who have already logged in.
#
# By default, this is infinite.
#
#session_lifetime: 24h
# Time that an access token remains valid for, if the session is
# using refresh tokens.
# For more information about refresh tokens, please see the manual.
# Note that this only applies to clients which advertise support for
# refresh tokens.
#
# Note also that this is calculated at login time and refresh time:
# changes are not applied to existing sessions until they are refreshed.
#
# By default, this is 5 minutes.
#
#refreshable_access_token_lifetime: 5m
# Time that a refresh token remains valid for (provided that it is not
# exchanged for another one first).
# This option can be used to automatically log-out inactive sessions.
# Please see the manual for more information.
#
# Note also that this is calculated at login time and refresh time:
# changes are not applied to existing sessions until they are refreshed.
#
# By default, this is infinite.
#
#refresh_token_lifetime: 24h
# Time that an access token remains valid for, if the session is NOT
# using refresh tokens.
# Please note that not all clients support refresh tokens, so setting
# this to a short value may be inconvenient for some users who will
# then be logged out frequently.
#
# Note also that this is calculated at login time: changes are not applied
# retrospectively to existing sessions for users that have already logged in.
#
# By default, this is infinite.
#
#nonrefreshable_access_token_lifetime: 24h
# The user must provide all of the below types of 3PID when registering.
#
#registrations_require_3pid:
# - email
# - msisdn
# Explicitly disable asking for MSISDNs from the registration
# flow (overrides registrations_require_3pid if MSISDNs are set as required)
#
#disable_msisdn_registration: true
# Mandate that users are only allowed to associate certain formats of
# 3PIDs with accounts on this server.
#
#allowed_local_3pids:
# - medium: email
# pattern: '^[^@]+@matrix\\.org$'
# - medium: email
# pattern: '^[^@]+@vector\\.im$'
# - medium: msisdn
# pattern: '\\+44'
# Enable 3PIDs lookup requests to identity servers from this server.
#
#enable_3pid_lookup: true
# Require users to submit a token during registration.
# Tokens can be managed using the admin API:
# https://matrix-org.github.io/synapse/latest/usage/administration/admin_api/registration_tokens.html
# Note that `enable_registration` must be set to `true`.
# Disabling this option will not delete any tokens previously generated.
# Defaults to false. Uncomment the following to require tokens:
#
#registration_requires_token: true
# If set, allows registration of standard or admin accounts by anyone who
# has the shared secret, even if registration is otherwise disabled.
#
%(registration_shared_secret)s
# Set the number of bcrypt rounds used to generate password hash.
# Larger numbers increase the work factor needed to generate the hash.
# The default number is 12 (which equates to 2^12 rounds).
# N.B. that increasing this will exponentially increase the time required
# to register or login - e.g. 24 => 2^24 rounds which will take >20 mins.
#
#bcrypt_rounds: 12
# Allows users to register as guests without a password/email/etc, and
# participate in rooms hosted on this server which have been made
# accessible to anonymous users.
#
#allow_guest_access: false
# The identity server which we suggest that clients should use when users log
# in on this server.
#
# (By default, no suggestion is made, so it is left up to the client.
# This setting is ignored unless public_baseurl is also explicitly set.)
#
#default_identity_server: https://matrix.org
# Handle threepid (email/phone etc) registration and password resets through a set of
# *trusted* identity servers. Note that this allows the configured identity server to
# reset passwords for accounts!
#
# Be aware that if `email` is not set, and SMTP options have not been
# configured in the email config block, registration and user password resets via
# email will be globally disabled.
#
# Additionally, if `msisdn` is not set, registration and password resets via msisdn
# will be disabled regardless, and users will not be able to associate an msisdn
# identifier to their account. This is due to Synapse currently not supporting
# any method of sending SMS messages on its own.
#
# To enable using an identity server for operations regarding a particular third-party
# identifier type, set the value to the URL of that identity server as shown in the
# examples below.
#
# Servers handling the these requests must answer the `/requestToken` endpoints defined
# by the Matrix Identity Service API specification:
# https://matrix.org/docs/spec/identity_service/latest
#
account_threepid_delegates:
#email: https://example.com # Delegate email sending to example.com
#msisdn: http://localhost:8090 # Delegate SMS sending to this local process
# Whether users are allowed to change their displayname after it has
# been initially set. Useful when provisioning users based on the
# contents of a third-party directory.
#
# Does not apply to server administrators. Defaults to 'true'
#
#enable_set_displayname: false
# Whether users are allowed to change their avatar after it has been
# initially set. Useful when provisioning users based on the contents
# of a third-party directory.
#
# Does not apply to server administrators. Defaults to 'true'
#
#enable_set_avatar_url: false
# Whether users can change the 3PIDs associated with their accounts
# (email address and msisdn).
#
# Defaults to 'true'
#
#enable_3pid_changes: false
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# Users who register on this homeserver will automatically be joined
# to these rooms.
#
# By default, any room aliases included in this list will be created
# as a publicly joinable room when the first user registers for the
# homeserver. This behaviour can be customised with the settings below.
# If the room already exists, make certain it is a publicly joinable
# room. The join rule of the room must be set to 'public'.
#
#auto_join_rooms:
# - "#example:example.com"
# Where auto_join_rooms are specified, setting this flag ensures that the
# the rooms exist by creating them when the first user on the
# homeserver registers.
#
# By default the auto-created rooms are publicly joinable from any federated
# server. Use the autocreate_auto_join_rooms_federated and
# autocreate_auto_join_room_preset settings below to customise this behaviour.
#
# Setting to false means that if the rooms are not manually created,
# users cannot be auto-joined since they do not exist.
#
# Defaults to true. Uncomment the following line to disable automatically
# creating auto-join rooms.
#
#autocreate_auto_join_rooms: false
# Whether the auto_join_rooms that are auto-created are available via
# federation. Only has an effect if autocreate_auto_join_rooms is true.
#
# Note that whether a room is federated cannot be modified after
# creation.
#
# Defaults to true: the room will be joinable from other servers.
# Uncomment the following to prevent users from other homeservers from
# joining these rooms.
#
#autocreate_auto_join_rooms_federated: false
# The room preset to use when auto-creating one of auto_join_rooms. Only has an
# effect if autocreate_auto_join_rooms is true.
#
# This can be one of "public_chat", "private_chat", or "trusted_private_chat".
# If a value of "private_chat" or "trusted_private_chat" is used then
# auto_join_mxid_localpart must also be configured.
#
# Defaults to "public_chat", meaning that the room is joinable by anyone, including
# federated servers if autocreate_auto_join_rooms_federated is true (the default).
# Uncomment the following to require an invitation to join these rooms.
#
#autocreate_auto_join_room_preset: private_chat
# The local part of the user id which is used to create auto_join_rooms if
# autocreate_auto_join_rooms is true. If this is not provided then the
# initial user account that registers will be used to create the rooms.
#
# The user id is also used to invite new users to any auto-join rooms which
# are set to invite-only.
#
# It *must* be configured if autocreate_auto_join_room_preset is set to
# "private_chat" or "trusted_private_chat".
#
# Note that this must be specified in order for new users to be correctly
# invited to any auto-join rooms which have been set to invite-only (either
# at the time of creation or subsequently).
#
# Note that, if the room already exists, this user must be joined and
# have the appropriate permissions to invite new members.
#
#auto_join_mxid_localpart: system
# When auto_join_rooms is specified, setting this flag to false prevents
# guest accounts from being automatically joined to the rooms.
#
# Defaults to true.
#
#auto_join_rooms_for_guests: false
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"""
% locals()
)
@staticmethod
def add_arguments(parser: argparse.ArgumentParser) -> None:
reg_group = parser.add_argument_group("registration")
reg_group.add_argument(
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"--enable-registration",
action="store_true",
default=None,
help="Enable registration for new users.",
)
def read_arguments(self, args: argparse.Namespace) -> None:
if args.enable_registration is not None:
self.enable_registration = strtobool(str(args.enable_registration))