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synapse/synapse/config/registration.py

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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2021 The Matrix.org Foundation C.I.C.
# Copyright 2015, 2016 OpenMarket Ltd
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
import argparse
from typing import Any, Dict, Optional
from synapse.api.constants import RoomCreationPreset
from synapse.config._base import Config, ConfigError, read_file
from synapse.types import JsonDict, RoomAlias, UserID
from synapse.util.stringutils import random_string_with_symbols, strtobool
NO_EMAIL_DELEGATE_ERROR = """\
Delegation of email verification to an identity server is no longer supported. To
continue to allow users to add email addresses to their accounts, and use them for
password resets, configure Synapse with an SMTP server via the `email` setting, and
remove `account_threepid_delegates.email`.
"""
CONFLICTING_SHARED_SECRET_OPTS_ERROR = """\
You have configured both `registration_shared_secret` and
`registration_shared_secret_path`. These are mutually incompatible.
"""
class RegistrationConfig(Config):
section = "registration"
def read_config(self, config: JsonDict, **kwargs: Any) -> None:
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.enable_registration_without_verification = strtobool(
str(config.get("enable_registration_without_verification", False))
)
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.enable_registration_token_3pid_bypass = config.get(
"enable_registration_token_3pid_bypass", False
)
# read the shared secret, either inline or from an external file
self.registration_shared_secret = config.get("registration_shared_secret")
registration_shared_secret_path = config.get("registration_shared_secret_path")
if registration_shared_secret_path:
if self.registration_shared_secret:
raise ConfigError(CONFLICTING_SHARED_SECRET_OPTS_ERROR)
self.registration_shared_secret = read_file(
registration_shared_secret_path, ("registration_shared_secret_path",)
).strip()
self.bcrypt_rounds = config.get("bcrypt_rounds", 12)
account_threepid_delegates = config.get("account_threepid_delegates") or {}
if "email" in account_threepid_delegates:
raise ConfigError(NO_EMAIL_DELEGATE_ERROR)
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):
raise ConfigError("Invalid auto_join_rooms entry %s" % (room_alias,))
# Options for creating auto-join rooms if they do not exist yet.
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,
}
# 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)
# The default value of enable_3pid_changes is True, unless msc3861 is enabled.
msc3861_enabled = (
(config.get("experimental_features") or {})
.get("msc3861", {})
.get("enabled", False)
)
self.enable_3pid_changes = config.get(
"enable_3pid_changes", not msc3861_enabled
)
self.disable_msisdn_registration = config.get(
"disable_msisdn_registration", False
)
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")
self.inhibit_user_in_use_error = config.get("inhibit_user_in_use_error", False)
def generate_config_section(
self, generate_secrets: bool = False, **kwargs: Any
) -> str:
if generate_secrets:
registration_shared_secret = 'registration_shared_secret: "%s"' % (
random_string_with_symbols(50),
)
return registration_shared_secret
else:
return ""
def generate_files(self, config: Dict[str, Any], config_dir_path: str) -> None:
# if 'registration_shared_secret_path' is specified, and the target file
# does not exist, generate it.
registration_shared_secret_path = config.get("registration_shared_secret_path")
if registration_shared_secret_path and not self.path_exists(
registration_shared_secret_path
):
print(
"Generating registration shared secret file "
+ registration_shared_secret_path
)
secret = random_string_with_symbols(50)
with open(registration_shared_secret_path, "w") as f:
f.write(f"{secret}\n")
@staticmethod
def add_arguments(parser: argparse.ArgumentParser) -> None:
reg_group = parser.add_argument_group("registration")
reg_group.add_argument(
"--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))
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