1362 lines
53 KiB
Python
1362 lines
53 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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# Copyright 2017-2018 New Vector Ltd
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# Copyright 2019 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import itertools
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import logging
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import os.path
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import re
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from textwrap import indent
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from typing import Any, Dict, Iterable, List, Optional, Set
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import attr
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import yaml
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from netaddr import AddrFormatError, IPNetwork, IPSet
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from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
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from synapse.util.stringutils import parse_and_validate_server_name
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from ._base import Config, ConfigError
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logger = logging.Logger(__name__)
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# by default, we attempt to listen on both '::' *and* '0.0.0.0' because some OSes
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# (Windows, macOS, other BSD/Linux where net.ipv6.bindv6only is set) will only listen
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# on IPv6 when '::' is set.
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#
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# We later check for errors when binding to 0.0.0.0 and ignore them if :: is also in
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# in the list.
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DEFAULT_BIND_ADDRESSES = ["::", "0.0.0.0"]
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def _6to4(network: IPNetwork) -> IPNetwork:
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"""Convert an IPv4 network into a 6to4 IPv6 network per RFC 3056."""
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# 6to4 networks consist of:
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# * 2002 as the first 16 bits
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# * The first IPv4 address in the network hex-encoded as the next 32 bits
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# * The new prefix length needs to include the bits from the 2002 prefix.
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hex_network = hex(network.first)[2:]
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hex_network = ("0" * (8 - len(hex_network))) + hex_network
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return IPNetwork(
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"2002:%s:%s::/%d"
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% (
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hex_network[:4],
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hex_network[4:],
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16 + network.prefixlen,
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)
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)
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def generate_ip_set(
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ip_addresses: Optional[Iterable[str]],
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extra_addresses: Optional[Iterable[str]] = None,
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config_path: Optional[Iterable[str]] = None,
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) -> IPSet:
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"""
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Generate an IPSet from a list of IP addresses or CIDRs.
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Additionally, for each IPv4 network in the list of IP addresses, also
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includes the corresponding IPv6 networks.
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This includes:
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* IPv4-Compatible IPv6 Address (see RFC 4291, section 2.5.5.1)
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* IPv4-Mapped IPv6 Address (see RFC 4291, section 2.5.5.2)
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* 6to4 Address (see RFC 3056, section 2)
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Args:
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ip_addresses: An iterable of IP addresses or CIDRs.
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extra_addresses: An iterable of IP addresses or CIDRs.
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config_path: The path in the configuration for error messages.
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Returns:
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A new IP set.
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"""
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result = IPSet()
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for ip in itertools.chain(ip_addresses or (), extra_addresses or ()):
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try:
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network = IPNetwork(ip)
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except AddrFormatError as e:
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raise ConfigError(
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"Invalid IP range provided: %s." % (ip,), config_path
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) from e
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result.add(network)
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# It is possible that these already exist in the set, but that's OK.
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if ":" not in str(network):
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result.add(IPNetwork(network).ipv6(ipv4_compatible=True))
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result.add(IPNetwork(network).ipv6(ipv4_compatible=False))
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result.add(_6to4(network))
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return result
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# IP ranges that are considered private / unroutable / don't make sense.
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DEFAULT_IP_RANGE_BLACKLIST = [
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# Localhost
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"127.0.0.0/8",
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# Private networks.
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"10.0.0.0/8",
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"172.16.0.0/12",
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"192.168.0.0/16",
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# Carrier grade NAT.
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"100.64.0.0/10",
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# Address registry.
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"192.0.0.0/24",
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# Link-local networks.
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"169.254.0.0/16",
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# Formerly used for 6to4 relay.
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"192.88.99.0/24",
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# Testing networks.
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"198.18.0.0/15",
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"192.0.2.0/24",
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"198.51.100.0/24",
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"203.0.113.0/24",
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# Multicast.
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"224.0.0.0/4",
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# Localhost
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"::1/128",
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# Link-local addresses.
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"fe80::/10",
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# Unique local addresses.
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"fc00::/7",
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# Testing networks.
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"2001:db8::/32",
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# Multicast.
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"ff00::/8",
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# Site-local addresses
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"fec0::/10",
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]
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DEFAULT_ROOM_VERSION = "6"
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ROOM_COMPLEXITY_TOO_GREAT = (
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"Your homeserver is unable to join rooms this large or complex. "
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"Please speak to your server administrator, or upgrade your instance "
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"to join this room."
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)
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METRICS_PORT_WARNING = """\
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The metrics_port configuration option is deprecated in Synapse 0.31 in favour of
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a listener. Please see
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https://github.com/matrix-org/synapse/blob/master/docs/metrics-howto.md
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on how to configure the new listener.
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--------------------------------------------------------------------------------"""
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KNOWN_LISTENER_TYPES = {
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"http",
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"metrics",
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"manhole",
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"replication",
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}
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KNOWN_RESOURCES = {
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"client",
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"consent",
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"federation",
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"keys",
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"media",
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"metrics",
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"openid",
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"replication",
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"static",
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"webclient",
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}
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@attr.s(frozen=True)
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class HttpResourceConfig:
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names = attr.ib(
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type=List[str],
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factory=list,
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validator=attr.validators.deep_iterable(attr.validators.in_(KNOWN_RESOURCES)), # type: ignore
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)
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compress = attr.ib(
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type=bool,
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default=False,
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validator=attr.validators.optional(attr.validators.instance_of(bool)), # type: ignore[arg-type]
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)
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@attr.s(frozen=True)
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class HttpListenerConfig:
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"""Object describing the http-specific parts of the config of a listener"""
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x_forwarded = attr.ib(type=bool, default=False)
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resources = attr.ib(type=List[HttpResourceConfig], factory=list)
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additional_resources = attr.ib(type=Dict[str, dict], factory=dict)
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tag = attr.ib(type=str, default=None)
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@attr.s(frozen=True)
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class ListenerConfig:
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"""Object describing the configuration of a single listener."""
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port = attr.ib(type=int, validator=attr.validators.instance_of(int))
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bind_addresses = attr.ib(type=List[str])
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type = attr.ib(type=str, validator=attr.validators.in_(KNOWN_LISTENER_TYPES))
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tls = attr.ib(type=bool, default=False)
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# http_options is only populated if type=http
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http_options = attr.ib(type=Optional[HttpListenerConfig], default=None)
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class ServerConfig(Config):
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section = "server"
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def read_config(self, config, **kwargs):
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self.server_name = config["server_name"]
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self.server_context = config.get("server_context", None)
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try:
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parse_and_validate_server_name(self.server_name)
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except ValueError as e:
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raise ConfigError(str(e))
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self.pid_file = self.abspath(config.get("pid_file"))
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self.web_client_location = config.get("web_client_location", None)
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self.soft_file_limit = config.get("soft_file_limit", 0)
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self.daemonize = config.get("daemonize")
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self.print_pidfile = config.get("print_pidfile")
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self.user_agent_suffix = config.get("user_agent_suffix")
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self.use_frozen_dicts = config.get("use_frozen_dicts", False)
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self.public_baseurl = config.get("public_baseurl")
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# Whether to enable user presence.
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self.use_presence = config.get("use_presence", True)
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# Whether to update the user directory or not. This should be set to
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# false only if we are updating the user directory in a worker
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self.update_user_directory = config.get("update_user_directory", True)
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# whether to enable the media repository endpoints. This should be set
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# to false if the media repository is running as a separate endpoint;
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# doing so ensures that we will not run cache cleanup jobs on the
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# master, potentially causing inconsistency.
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self.enable_media_repo = config.get("enable_media_repo", True)
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# Whether to require authentication to retrieve profile data (avatars,
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# display names) of other users through the client API.
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self.require_auth_for_profile_requests = config.get(
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"require_auth_for_profile_requests", False
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)
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# Whether to require sharing a room with a user to retrieve their
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# profile data
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self.limit_profile_requests_to_users_who_share_rooms = config.get(
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"limit_profile_requests_to_users_who_share_rooms",
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False,
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)
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# Whether to retrieve and display profile data for a user when they
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# are invited to a room
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self.include_profile_data_on_invite = config.get(
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"include_profile_data_on_invite", True
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)
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if "restrict_public_rooms_to_local_users" in config and (
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"allow_public_rooms_without_auth" in config
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or "allow_public_rooms_over_federation" in config
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):
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raise ConfigError(
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"Can't use 'restrict_public_rooms_to_local_users' if"
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" 'allow_public_rooms_without_auth' and/or"
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" 'allow_public_rooms_over_federation' is set."
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)
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# Check if the legacy "restrict_public_rooms_to_local_users" flag is set. This
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# flag is now obsolete but we need to check it for backward-compatibility.
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if config.get("restrict_public_rooms_to_local_users", False):
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self.allow_public_rooms_without_auth = False
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self.allow_public_rooms_over_federation = False
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else:
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# If set to 'true', removes the need for authentication to access the server's
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# public rooms directory through the client API, meaning that anyone can
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# query the room directory. Defaults to 'false'.
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self.allow_public_rooms_without_auth = config.get(
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"allow_public_rooms_without_auth", False
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)
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# If set to 'true', allows any other homeserver to fetch the server's public
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# rooms directory via federation. Defaults to 'false'.
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self.allow_public_rooms_over_federation = config.get(
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"allow_public_rooms_over_federation", False
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)
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default_room_version = config.get("default_room_version", DEFAULT_ROOM_VERSION)
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# Ensure room version is a str
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default_room_version = str(default_room_version)
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if default_room_version not in KNOWN_ROOM_VERSIONS:
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raise ConfigError(
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"Unknown default_room_version: %s, known room versions: %s"
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% (default_room_version, list(KNOWN_ROOM_VERSIONS.keys()))
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)
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# Get the actual room version object rather than just the identifier
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self.default_room_version = KNOWN_ROOM_VERSIONS[default_room_version]
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# whether to enable search. If disabled, new entries will not be inserted
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# into the search tables and they will not be indexed. Users will receive
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# errors when attempting to search for messages.
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self.enable_search = config.get("enable_search", True)
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self.filter_timeline_limit = config.get("filter_timeline_limit", 100)
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# Whether we should block invites sent to users on this server
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# (other than those sent by local server admins)
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self.block_non_admin_invites = config.get("block_non_admin_invites", False)
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# Whether to enable experimental MSC1849 (aka relations) support
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self.experimental_msc1849_support_enabled = config.get(
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"experimental_msc1849_support_enabled", True
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)
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# Options to control access by tracking MAU
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self.limit_usage_by_mau = config.get("limit_usage_by_mau", False)
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self.max_mau_value = 0
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if self.limit_usage_by_mau:
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self.max_mau_value = config.get("max_mau_value", 0)
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self.mau_stats_only = config.get("mau_stats_only", False)
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self.mau_limits_reserved_threepids = config.get(
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"mau_limit_reserved_threepids", []
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)
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self.mau_trial_days = config.get("mau_trial_days", 0)
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self.mau_limit_alerting = config.get("mau_limit_alerting", True)
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# How long to keep redacted events in the database in unredacted form
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# before redacting them.
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redaction_retention_period = config.get("redaction_retention_period", "7d")
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if redaction_retention_period is not None:
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self.redaction_retention_period = self.parse_duration(
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redaction_retention_period
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)
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else:
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self.redaction_retention_period = None
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# How long to keep entries in the `users_ips` table.
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user_ips_max_age = config.get("user_ips_max_age", "28d")
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if user_ips_max_age is not None:
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self.user_ips_max_age = self.parse_duration(user_ips_max_age)
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else:
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self.user_ips_max_age = None
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# Options to disable HS
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self.hs_disabled = config.get("hs_disabled", False)
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self.hs_disabled_message = config.get("hs_disabled_message", "")
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# Admin uri to direct users at should their instance become blocked
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# due to resource constraints
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self.admin_contact = config.get("admin_contact", None)
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ip_range_blacklist = config.get(
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"ip_range_blacklist", DEFAULT_IP_RANGE_BLACKLIST
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)
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# Attempt to create an IPSet from the given ranges
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# Always blacklist 0.0.0.0, ::
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self.ip_range_blacklist = generate_ip_set(
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ip_range_blacklist, ["0.0.0.0", "::"], config_path=("ip_range_blacklist",)
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)
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self.ip_range_whitelist = generate_ip_set(
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config.get("ip_range_whitelist", ()), config_path=("ip_range_whitelist",)
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)
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# The federation_ip_range_blacklist is used for backwards-compatibility
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# and only applies to federation and identity servers. If it is not given,
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# default to ip_range_blacklist.
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federation_ip_range_blacklist = config.get(
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"federation_ip_range_blacklist", ip_range_blacklist
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)
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# Always blacklist 0.0.0.0, ::
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self.federation_ip_range_blacklist = generate_ip_set(
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federation_ip_range_blacklist,
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["0.0.0.0", "::"],
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config_path=("federation_ip_range_blacklist",),
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)
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if self.public_baseurl is not None:
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if self.public_baseurl[-1] != "/":
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self.public_baseurl += "/"
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# (undocumented) option for torturing the worker-mode replication a bit,
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# for testing. The value defines the number of milliseconds to pause before
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# sending out any replication updates.
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self.replication_torture_level = config.get("replication_torture_level")
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# Whether to require a user to be in the room to add an alias to it.
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# Defaults to True.
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self.require_membership_for_aliases = config.get(
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"require_membership_for_aliases", True
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)
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# Whether to allow per-room membership profiles through the send of membership
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# events with profile information that differ from the target's global profile.
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self.allow_per_room_profiles = config.get("allow_per_room_profiles", True)
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retention_config = config.get("retention")
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if retention_config is None:
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retention_config = {}
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self.retention_enabled = retention_config.get("enabled", False)
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retention_default_policy = retention_config.get("default_policy")
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if retention_default_policy is not None:
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self.retention_default_min_lifetime = retention_default_policy.get(
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"min_lifetime"
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)
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if self.retention_default_min_lifetime is not None:
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self.retention_default_min_lifetime = self.parse_duration(
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self.retention_default_min_lifetime
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)
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self.retention_default_max_lifetime = retention_default_policy.get(
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"max_lifetime"
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)
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if self.retention_default_max_lifetime is not None:
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self.retention_default_max_lifetime = self.parse_duration(
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self.retention_default_max_lifetime
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)
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|
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if (
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self.retention_default_min_lifetime is not None
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|
and self.retention_default_max_lifetime is not None
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|
and (
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self.retention_default_min_lifetime
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> self.retention_default_max_lifetime
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)
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):
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raise ConfigError(
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"The default retention policy's 'min_lifetime' can not be greater"
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" than its 'max_lifetime'"
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)
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else:
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self.retention_default_min_lifetime = None
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self.retention_default_max_lifetime = None
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if self.retention_enabled:
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logger.info(
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"Message retention policies support enabled with the following default"
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" policy: min_lifetime = %s ; max_lifetime = %s",
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self.retention_default_min_lifetime,
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self.retention_default_max_lifetime,
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)
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self.retention_allowed_lifetime_min = retention_config.get(
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"allowed_lifetime_min"
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)
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if self.retention_allowed_lifetime_min is not None:
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self.retention_allowed_lifetime_min = self.parse_duration(
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self.retention_allowed_lifetime_min
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)
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|
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self.retention_allowed_lifetime_max = retention_config.get(
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"allowed_lifetime_max"
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)
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|
if self.retention_allowed_lifetime_max is not None:
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self.retention_allowed_lifetime_max = self.parse_duration(
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self.retention_allowed_lifetime_max
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)
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if (
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self.retention_allowed_lifetime_min is not None
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|
and self.retention_allowed_lifetime_max is not None
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|
and self.retention_allowed_lifetime_min
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> self.retention_allowed_lifetime_max
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):
|
|
raise ConfigError(
|
|
"Invalid retention policy limits: 'allowed_lifetime_min' can not be"
|
|
" greater than 'allowed_lifetime_max'"
|
|
)
|
|
|
|
self.retention_purge_jobs = [] # type: List[Dict[str, Optional[int]]]
|
|
for purge_job_config in retention_config.get("purge_jobs", []):
|
|
interval_config = purge_job_config.get("interval")
|
|
|
|
if interval_config is None:
|
|
raise ConfigError(
|
|
"A retention policy's purge jobs configuration must have the"
|
|
" 'interval' key set."
|
|
)
|
|
|
|
interval = self.parse_duration(interval_config)
|
|
|
|
shortest_max_lifetime = purge_job_config.get("shortest_max_lifetime")
|
|
|
|
if shortest_max_lifetime is not None:
|
|
shortest_max_lifetime = self.parse_duration(shortest_max_lifetime)
|
|
|
|
longest_max_lifetime = purge_job_config.get("longest_max_lifetime")
|
|
|
|
if longest_max_lifetime is not None:
|
|
longest_max_lifetime = self.parse_duration(longest_max_lifetime)
|
|
|
|
if (
|
|
shortest_max_lifetime is not None
|
|
and longest_max_lifetime is not None
|
|
and shortest_max_lifetime > longest_max_lifetime
|
|
):
|
|
raise ConfigError(
|
|
"A retention policy's purge jobs configuration's"
|
|
" 'shortest_max_lifetime' value can not be greater than its"
|
|
" 'longest_max_lifetime' value."
|
|
)
|
|
|
|
self.retention_purge_jobs.append(
|
|
{
|
|
"interval": interval,
|
|
"shortest_max_lifetime": shortest_max_lifetime,
|
|
"longest_max_lifetime": longest_max_lifetime,
|
|
}
|
|
)
|
|
|
|
if not self.retention_purge_jobs:
|
|
self.retention_purge_jobs = [
|
|
{
|
|
"interval": self.parse_duration("1d"),
|
|
"shortest_max_lifetime": None,
|
|
"longest_max_lifetime": None,
|
|
}
|
|
]
|
|
|
|
self.listeners = [parse_listener_def(x) for x in config.get("listeners", [])]
|
|
|
|
# no_tls is not really supported any more, but let's grandfather it in
|
|
# here.
|
|
if config.get("no_tls", False):
|
|
l2 = []
|
|
for listener in self.listeners:
|
|
if listener.tls:
|
|
logger.info(
|
|
"Ignoring TLS-enabled listener on port %i due to no_tls",
|
|
listener.port,
|
|
)
|
|
else:
|
|
l2.append(listener)
|
|
self.listeners = l2
|
|
|
|
if not self.web_client_location:
|
|
_warn_if_webclient_configured(self.listeners)
|
|
|
|
self.gc_thresholds = read_gc_thresholds(config.get("gc_thresholds", None))
|
|
|
|
@attr.s
|
|
class LimitRemoteRoomsConfig:
|
|
enabled = attr.ib(
|
|
validator=attr.validators.instance_of(bool), default=False
|
|
)
|
|
complexity = attr.ib(
|
|
validator=attr.validators.instance_of(
|
|
(float, int) # type: ignore[arg-type] # noqa
|
|
),
|
|
default=1.0,
|
|
)
|
|
complexity_error = attr.ib(
|
|
validator=attr.validators.instance_of(str),
|
|
default=ROOM_COMPLEXITY_TOO_GREAT,
|
|
)
|
|
admins_can_join = attr.ib(
|
|
validator=attr.validators.instance_of(bool), default=False
|
|
)
|
|
|
|
self.limit_remote_rooms = LimitRemoteRoomsConfig(
|
|
**(config.get("limit_remote_rooms") or {})
|
|
)
|
|
|
|
bind_port = config.get("bind_port")
|
|
if bind_port:
|
|
if config.get("no_tls", False):
|
|
raise ConfigError("no_tls is incompatible with bind_port")
|
|
|
|
self.listeners = []
|
|
bind_host = config.get("bind_host", "")
|
|
gzip_responses = config.get("gzip_responses", True)
|
|
|
|
http_options = HttpListenerConfig(
|
|
resources=[
|
|
HttpResourceConfig(names=["client"], compress=gzip_responses),
|
|
HttpResourceConfig(names=["federation"]),
|
|
],
|
|
)
|
|
|
|
self.listeners.append(
|
|
ListenerConfig(
|
|
port=bind_port,
|
|
bind_addresses=[bind_host],
|
|
tls=True,
|
|
type="http",
|
|
http_options=http_options,
|
|
)
|
|
)
|
|
|
|
unsecure_port = config.get("unsecure_port", bind_port - 400)
|
|
if unsecure_port:
|
|
self.listeners.append(
|
|
ListenerConfig(
|
|
port=unsecure_port,
|
|
bind_addresses=[bind_host],
|
|
tls=False,
|
|
type="http",
|
|
http_options=http_options,
|
|
)
|
|
)
|
|
|
|
manhole = config.get("manhole")
|
|
if manhole:
|
|
self.listeners.append(
|
|
ListenerConfig(
|
|
port=manhole,
|
|
bind_addresses=["127.0.0.1"],
|
|
type="manhole",
|
|
)
|
|
)
|
|
|
|
metrics_port = config.get("metrics_port")
|
|
if metrics_port:
|
|
logger.warning(METRICS_PORT_WARNING)
|
|
|
|
self.listeners.append(
|
|
ListenerConfig(
|
|
port=metrics_port,
|
|
bind_addresses=[config.get("metrics_bind_host", "127.0.0.1")],
|
|
type="http",
|
|
http_options=HttpListenerConfig(
|
|
resources=[HttpResourceConfig(names=["metrics"])]
|
|
),
|
|
)
|
|
)
|
|
|
|
self.cleanup_extremities_with_dummy_events = config.get(
|
|
"cleanup_extremities_with_dummy_events", True
|
|
)
|
|
|
|
# The number of forward extremities in a room needed to send a dummy event.
|
|
self.dummy_events_threshold = config.get("dummy_events_threshold", 10)
|
|
|
|
self.enable_ephemeral_messages = config.get("enable_ephemeral_messages", False)
|
|
|
|
# Inhibits the /requestToken endpoints from returning an error that might leak
|
|
# information about whether an e-mail address is in use or not on this
|
|
# homeserver, and instead return a 200 with a fake sid if this kind of error is
|
|
# met, without sending anything.
|
|
# This is a compromise between sending an email, which could be a spam vector,
|
|
# and letting the client know which email address is bound to an account and
|
|
# which one isn't.
|
|
self.request_token_inhibit_3pid_errors = config.get(
|
|
"request_token_inhibit_3pid_errors",
|
|
False,
|
|
)
|
|
|
|
# List of users trialing the new experimental default push rules. This setting is
|
|
# not included in the sample configuration file on purpose as it's a temporary
|
|
# hack, so that some users can trial the new defaults without impacting every
|
|
# user on the homeserver.
|
|
users_new_default_push_rules = (
|
|
config.get("users_new_default_push_rules") or []
|
|
) # type: list
|
|
if not isinstance(users_new_default_push_rules, list):
|
|
raise ConfigError("'users_new_default_push_rules' must be a list")
|
|
|
|
# Turn the list into a set to improve lookup speed.
|
|
self.users_new_default_push_rules = set(
|
|
users_new_default_push_rules
|
|
) # type: set
|
|
|
|
# Whitelist of domain names that given next_link parameters must have
|
|
next_link_domain_whitelist = config.get(
|
|
"next_link_domain_whitelist"
|
|
) # type: Optional[List[str]]
|
|
|
|
self.next_link_domain_whitelist = None # type: Optional[Set[str]]
|
|
if next_link_domain_whitelist is not None:
|
|
if not isinstance(next_link_domain_whitelist, list):
|
|
raise ConfigError("'next_link_domain_whitelist' must be a list")
|
|
|
|
# Turn the list into a set to improve lookup speed.
|
|
self.next_link_domain_whitelist = set(next_link_domain_whitelist)
|
|
|
|
def has_tls_listener(self) -> bool:
|
|
return any(listener.tls for listener in self.listeners)
|
|
|
|
def generate_config_section(
|
|
self, server_name, data_dir_path, open_private_ports, listeners, **kwargs
|
|
):
|
|
ip_range_blacklist = "\n".join(
|
|
" # - '%s'" % ip for ip in DEFAULT_IP_RANGE_BLACKLIST
|
|
)
|
|
|
|
_, bind_port = parse_and_validate_server_name(server_name)
|
|
if bind_port is not None:
|
|
unsecure_port = bind_port - 400
|
|
else:
|
|
bind_port = 8448
|
|
unsecure_port = 8008
|
|
|
|
pid_file = os.path.join(data_dir_path, "homeserver.pid")
|
|
|
|
# Bring DEFAULT_ROOM_VERSION into the local-scope for use in the
|
|
# default config string
|
|
default_room_version = DEFAULT_ROOM_VERSION
|
|
secure_listeners = []
|
|
unsecure_listeners = []
|
|
private_addresses = ["::1", "127.0.0.1"]
|
|
if listeners:
|
|
for listener in listeners:
|
|
if listener["tls"]:
|
|
secure_listeners.append(listener)
|
|
else:
|
|
# If we don't want open ports we need to bind the listeners
|
|
# to some address other than 0.0.0.0. Here we chose to use
|
|
# localhost.
|
|
# If the addresses are already bound we won't overwrite them
|
|
# however.
|
|
if not open_private_ports:
|
|
listener.setdefault("bind_addresses", private_addresses)
|
|
|
|
unsecure_listeners.append(listener)
|
|
|
|
secure_http_bindings = indent(
|
|
yaml.dump(secure_listeners), " " * 10
|
|
).lstrip()
|
|
|
|
unsecure_http_bindings = indent(
|
|
yaml.dump(unsecure_listeners), " " * 10
|
|
).lstrip()
|
|
|
|
if not unsecure_listeners:
|
|
unsecure_http_bindings = (
|
|
"""- port: %(unsecure_port)s
|
|
tls: false
|
|
type: http
|
|
x_forwarded: true"""
|
|
% locals()
|
|
)
|
|
|
|
if not open_private_ports:
|
|
unsecure_http_bindings += (
|
|
"\n bind_addresses: ['::1', '127.0.0.1']"
|
|
)
|
|
|
|
unsecure_http_bindings += """
|
|
|
|
resources:
|
|
- names: [client, federation]
|
|
compress: false"""
|
|
|
|
if listeners:
|
|
# comment out this block
|
|
unsecure_http_bindings = "#" + re.sub(
|
|
"\n {10}",
|
|
lambda match: match.group(0) + "#",
|
|
unsecure_http_bindings,
|
|
)
|
|
|
|
if not secure_listeners:
|
|
secure_http_bindings = (
|
|
"""#- port: %(bind_port)s
|
|
# type: http
|
|
# tls: true
|
|
# resources:
|
|
# - names: [client, federation]"""
|
|
% locals()
|
|
)
|
|
|
|
return (
|
|
"""\
|
|
## Server ##
|
|
|
|
# The public-facing domain of the server
|
|
#
|
|
# The server_name name will appear at the end of usernames and room addresses
|
|
# created on this server. For example if the server_name was example.com,
|
|
# usernames on this server would be in the format @user:example.com
|
|
#
|
|
# In most cases you should avoid using a matrix specific subdomain such as
|
|
# matrix.example.com or synapse.example.com as the server_name for the same
|
|
# reasons you wouldn't use user@email.example.com as your email address.
|
|
# See https://github.com/matrix-org/synapse/blob/master/docs/delegate.md
|
|
# for information on how to host Synapse on a subdomain while preserving
|
|
# a clean server_name.
|
|
#
|
|
# The server_name cannot be changed later so it is important to
|
|
# configure this correctly before you start Synapse. It should be all
|
|
# lowercase and may contain an explicit port.
|
|
# Examples: matrix.org, localhost:8080
|
|
#
|
|
server_name: "%(server_name)s"
|
|
|
|
# When running as a daemon, the file to store the pid in
|
|
#
|
|
pid_file: %(pid_file)s
|
|
|
|
# The absolute URL to the web client which /_matrix/client will redirect
|
|
# to if 'webclient' is configured under the 'listeners' configuration.
|
|
#
|
|
# This option can be also set to the filesystem path to the web client
|
|
# which will be served at /_matrix/client/ if 'webclient' is configured
|
|
# under the 'listeners' configuration, however this is a security risk:
|
|
# https://github.com/matrix-org/synapse#security-note
|
|
#
|
|
#web_client_location: https://riot.example.com/
|
|
|
|
# The public-facing base URL that clients use to access this Homeserver (not
|
|
# including _matrix/...). This is the same URL a user might enter into the
|
|
# 'Custom Homeserver URL' field on their client. If you use Synapse with a
|
|
# reverse proxy, this should be the URL to reach Synapse via the proxy.
|
|
# Otherwise, it should be the URL to reach Synapse's client HTTP listener (see
|
|
# 'listeners' below).
|
|
#
|
|
#public_baseurl: https://example.com/
|
|
|
|
# Set the soft limit on the number of file descriptors synapse can use
|
|
# Zero is used to indicate synapse should set the soft limit to the
|
|
# hard limit.
|
|
#
|
|
#soft_file_limit: 0
|
|
|
|
# Set to false to disable presence tracking on this homeserver.
|
|
#
|
|
#use_presence: false
|
|
|
|
# Whether to require authentication to retrieve profile data (avatars,
|
|
# display names) of other users through the client API. Defaults to
|
|
# 'false'. Note that profile data is also available via the federation
|
|
# API, unless allow_profile_lookup_over_federation is set to false.
|
|
#
|
|
#require_auth_for_profile_requests: true
|
|
|
|
# Uncomment to require a user to share a room with another user in order
|
|
# to retrieve their profile information. Only checked on Client-Server
|
|
# requests. Profile requests from other servers should be checked by the
|
|
# requesting server. Defaults to 'false'.
|
|
#
|
|
#limit_profile_requests_to_users_who_share_rooms: true
|
|
|
|
# Uncomment to prevent a user's profile data from being retrieved and
|
|
# displayed in a room until they have joined it. By default, a user's
|
|
# profile data is included in an invite event, regardless of the values
|
|
# of the above two settings, and whether or not the users share a server.
|
|
# Defaults to 'true'.
|
|
#
|
|
#include_profile_data_on_invite: false
|
|
|
|
# If set to 'true', removes the need for authentication to access the server's
|
|
# public rooms directory through the client API, meaning that anyone can
|
|
# query the room directory. Defaults to 'false'.
|
|
#
|
|
#allow_public_rooms_without_auth: true
|
|
|
|
# If set to 'true', allows any other homeserver to fetch the server's public
|
|
# rooms directory via federation. Defaults to 'false'.
|
|
#
|
|
#allow_public_rooms_over_federation: true
|
|
|
|
# The default room version for newly created rooms.
|
|
#
|
|
# Known room versions are listed here:
|
|
# https://matrix.org/docs/spec/#complete-list-of-room-versions
|
|
#
|
|
# For example, for room version 1, default_room_version should be set
|
|
# to "1".
|
|
#
|
|
#default_room_version: "%(default_room_version)s"
|
|
|
|
# The GC threshold parameters to pass to `gc.set_threshold`, if defined
|
|
#
|
|
#gc_thresholds: [700, 10, 10]
|
|
|
|
# Set the limit on the returned events in the timeline in the get
|
|
# and sync operations. The default value is 100. -1 means no upper limit.
|
|
#
|
|
# Uncomment the following to increase the limit to 5000.
|
|
#
|
|
#filter_timeline_limit: 5000
|
|
|
|
# Whether room invites to users on this server should be blocked
|
|
# (except those sent by local server admins). The default is False.
|
|
#
|
|
#block_non_admin_invites: true
|
|
|
|
# Room searching
|
|
#
|
|
# If disabled, new messages will not be indexed for searching and users
|
|
# will receive errors when searching for messages. Defaults to enabled.
|
|
#
|
|
#enable_search: false
|
|
|
|
# Prevent outgoing requests from being sent to the following blacklisted IP address
|
|
# CIDR ranges. If this option is not specified then it defaults to private IP
|
|
# address ranges (see the example below).
|
|
#
|
|
# The blacklist applies to the outbound requests for federation, identity servers,
|
|
# push servers, and for checking key validity for third-party invite events.
|
|
#
|
|
# (0.0.0.0 and :: are always blacklisted, whether or not they are explicitly
|
|
# listed here, since they correspond to unroutable addresses.)
|
|
#
|
|
# This option replaces federation_ip_range_blacklist in Synapse v1.25.0.
|
|
#
|
|
#ip_range_blacklist:
|
|
%(ip_range_blacklist)s
|
|
|
|
# List of IP address CIDR ranges that should be allowed for federation,
|
|
# identity servers, push servers, and for checking key validity for
|
|
# third-party invite events. This is useful for specifying exceptions to
|
|
# wide-ranging blacklisted target IP ranges - e.g. for communication with
|
|
# a push server only visible in your network.
|
|
#
|
|
# This whitelist overrides ip_range_blacklist and defaults to an empty
|
|
# list.
|
|
#
|
|
#ip_range_whitelist:
|
|
# - '192.168.1.1'
|
|
|
|
# List of ports that Synapse should listen on, their purpose and their
|
|
# configuration.
|
|
#
|
|
# Options for each listener include:
|
|
#
|
|
# port: the TCP port to bind to
|
|
#
|
|
# bind_addresses: a list of local addresses to listen on. The default is
|
|
# 'all local interfaces'.
|
|
#
|
|
# type: the type of listener. Normally 'http', but other valid options are:
|
|
# 'manhole' (see docs/manhole.md),
|
|
# 'metrics' (see docs/metrics-howto.md),
|
|
# 'replication' (see docs/workers.md).
|
|
#
|
|
# tls: set to true to enable TLS for this listener. Will use the TLS
|
|
# key/cert specified in tls_private_key_path / tls_certificate_path.
|
|
#
|
|
# x_forwarded: Only valid for an 'http' listener. Set to true to use the
|
|
# X-Forwarded-For header as the client IP. Useful when Synapse is
|
|
# behind a reverse-proxy.
|
|
#
|
|
# resources: Only valid for an 'http' listener. A list of resources to host
|
|
# on this port. Options for each resource are:
|
|
#
|
|
# names: a list of names of HTTP resources. See below for a list of
|
|
# valid resource names.
|
|
#
|
|
# compress: set to true to enable HTTP compression for this resource.
|
|
#
|
|
# additional_resources: Only valid for an 'http' listener. A map of
|
|
# additional endpoints which should be loaded via dynamic modules.
|
|
#
|
|
# Valid resource names are:
|
|
#
|
|
# client: the client-server API (/_matrix/client), and the synapse admin
|
|
# API (/_synapse/admin). Also implies 'media' and 'static'.
|
|
#
|
|
# consent: user consent forms (/_matrix/consent). See
|
|
# docs/consent_tracking.md.
|
|
#
|
|
# federation: the server-server API (/_matrix/federation). Also implies
|
|
# 'media', 'keys', 'openid'
|
|
#
|
|
# keys: the key discovery API (/_matrix/keys).
|
|
#
|
|
# media: the media API (/_matrix/media).
|
|
#
|
|
# metrics: the metrics interface. See docs/metrics-howto.md.
|
|
#
|
|
# openid: OpenID authentication.
|
|
#
|
|
# replication: the HTTP replication API (/_synapse/replication). See
|
|
# docs/workers.md.
|
|
#
|
|
# static: static resources under synapse/static (/_matrix/static). (Mostly
|
|
# useful for 'fallback authentication'.)
|
|
#
|
|
# webclient: A web client. Requires web_client_location to be set.
|
|
#
|
|
listeners:
|
|
# TLS-enabled listener: for when matrix traffic is sent directly to synapse.
|
|
#
|
|
# Disabled by default. To enable it, uncomment the following. (Note that you
|
|
# will also need to give Synapse a TLS key and certificate: see the TLS section
|
|
# below.)
|
|
#
|
|
%(secure_http_bindings)s
|
|
|
|
# Unsecure HTTP listener: for when matrix traffic passes through a reverse proxy
|
|
# that unwraps TLS.
|
|
#
|
|
# If you plan to use a reverse proxy, please see
|
|
# https://github.com/matrix-org/synapse/blob/master/docs/reverse_proxy.md.
|
|
#
|
|
%(unsecure_http_bindings)s
|
|
|
|
# example additional_resources:
|
|
#
|
|
#additional_resources:
|
|
# "/_matrix/my/custom/endpoint":
|
|
# module: my_module.CustomRequestHandler
|
|
# config: {}
|
|
|
|
# Turn on the twisted ssh manhole service on localhost on the given
|
|
# port.
|
|
#
|
|
#- port: 9000
|
|
# bind_addresses: ['::1', '127.0.0.1']
|
|
# type: manhole
|
|
|
|
# Forward extremities can build up in a room due to networking delays between
|
|
# homeservers. Once this happens in a large room, calculation of the state of
|
|
# that room can become quite expensive. To mitigate this, once the number of
|
|
# forward extremities reaches a given threshold, Synapse will send an
|
|
# org.matrix.dummy_event event, which will reduce the forward extremities
|
|
# in the room.
|
|
#
|
|
# This setting defines the threshold (i.e. number of forward extremities in the
|
|
# room) at which dummy events are sent. The default value is 10.
|
|
#
|
|
#dummy_events_threshold: 5
|
|
|
|
|
|
## Homeserver blocking ##
|
|
|
|
# How to reach the server admin, used in ResourceLimitError
|
|
#
|
|
#admin_contact: 'mailto:admin@server.com'
|
|
|
|
# Global blocking
|
|
#
|
|
#hs_disabled: false
|
|
#hs_disabled_message: 'Human readable reason for why the HS is blocked'
|
|
|
|
# Monthly Active User Blocking
|
|
#
|
|
# Used in cases where the admin or server owner wants to limit to the
|
|
# number of monthly active users.
|
|
#
|
|
# 'limit_usage_by_mau' disables/enables monthly active user blocking. When
|
|
# enabled and a limit is reached the server returns a 'ResourceLimitError'
|
|
# with error type Codes.RESOURCE_LIMIT_EXCEEDED
|
|
#
|
|
# 'max_mau_value' is the hard limit of monthly active users above which
|
|
# the server will start blocking user actions.
|
|
#
|
|
# 'mau_trial_days' is a means to add a grace period for active users. It
|
|
# means that users must be active for this number of days before they
|
|
# can be considered active and guards against the case where lots of users
|
|
# sign up in a short space of time never to return after their initial
|
|
# session.
|
|
#
|
|
# 'mau_limit_alerting' is a means of limiting client side alerting
|
|
# should the mau limit be reached. This is useful for small instances
|
|
# where the admin has 5 mau seats (say) for 5 specific people and no
|
|
# interest increasing the mau limit further. Defaults to True, which
|
|
# means that alerting is enabled
|
|
#
|
|
#limit_usage_by_mau: false
|
|
#max_mau_value: 50
|
|
#mau_trial_days: 2
|
|
#mau_limit_alerting: false
|
|
|
|
# If enabled, the metrics for the number of monthly active users will
|
|
# be populated, however no one will be limited. If limit_usage_by_mau
|
|
# is true, this is implied to be true.
|
|
#
|
|
#mau_stats_only: false
|
|
|
|
# Sometimes the server admin will want to ensure certain accounts are
|
|
# never blocked by mau checking. These accounts are specified here.
|
|
#
|
|
#mau_limit_reserved_threepids:
|
|
# - medium: 'email'
|
|
# address: 'reserved_user@example.com'
|
|
|
|
# Used by phonehome stats to group together related servers.
|
|
#server_context: context
|
|
|
|
# Resource-constrained homeserver settings
|
|
#
|
|
# When this is enabled, the room "complexity" will be checked before a user
|
|
# joins a new remote room. If it is above the complexity limit, the server will
|
|
# disallow joining, or will instantly leave.
|
|
#
|
|
# Room complexity is an arbitrary measure based on factors such as the number of
|
|
# users in the room.
|
|
#
|
|
limit_remote_rooms:
|
|
# Uncomment to enable room complexity checking.
|
|
#
|
|
#enabled: true
|
|
|
|
# the limit above which rooms cannot be joined. The default is 1.0.
|
|
#
|
|
#complexity: 0.5
|
|
|
|
# override the error which is returned when the room is too complex.
|
|
#
|
|
#complexity_error: "This room is too complex."
|
|
|
|
# allow server admins to join complex rooms. Default is false.
|
|
#
|
|
#admins_can_join: true
|
|
|
|
# Whether to require a user to be in the room to add an alias to it.
|
|
# Defaults to 'true'.
|
|
#
|
|
#require_membership_for_aliases: false
|
|
|
|
# Whether to allow per-room membership profiles through the send of membership
|
|
# events with profile information that differ from the target's global profile.
|
|
# Defaults to 'true'.
|
|
#
|
|
#allow_per_room_profiles: false
|
|
|
|
# How long to keep redacted events in unredacted form in the database. After
|
|
# this period redacted events get replaced with their redacted form in the DB.
|
|
#
|
|
# Defaults to `7d`. Set to `null` to disable.
|
|
#
|
|
#redaction_retention_period: 28d
|
|
|
|
# How long to track users' last seen time and IPs in the database.
|
|
#
|
|
# Defaults to `28d`. Set to `null` to disable clearing out of old rows.
|
|
#
|
|
#user_ips_max_age: 14d
|
|
|
|
# Message retention policy at the server level.
|
|
#
|
|
# Room admins and mods can define a retention period for their rooms using the
|
|
# 'm.room.retention' state event, and server admins can cap this period by setting
|
|
# the 'allowed_lifetime_min' and 'allowed_lifetime_max' config options.
|
|
#
|
|
# If this feature is enabled, Synapse will regularly look for and purge events
|
|
# which are older than the room's maximum retention period. Synapse will also
|
|
# filter events received over federation so that events that should have been
|
|
# purged are ignored and not stored again.
|
|
#
|
|
retention:
|
|
# The message retention policies feature is disabled by default. Uncomment the
|
|
# following line to enable it.
|
|
#
|
|
#enabled: true
|
|
|
|
# Default retention policy. If set, Synapse will apply it to rooms that lack the
|
|
# 'm.room.retention' state event. Currently, the value of 'min_lifetime' doesn't
|
|
# matter much because Synapse doesn't take it into account yet.
|
|
#
|
|
#default_policy:
|
|
# min_lifetime: 1d
|
|
# max_lifetime: 1y
|
|
|
|
# Retention policy limits. If set, and the state of a room contains a
|
|
# 'm.room.retention' event in its state which contains a 'min_lifetime' or a
|
|
# 'max_lifetime' that's out of these bounds, Synapse will cap the room's policy
|
|
# to these limits when running purge jobs.
|
|
#
|
|
#allowed_lifetime_min: 1d
|
|
#allowed_lifetime_max: 1y
|
|
|
|
# Server admins can define the settings of the background jobs purging the
|
|
# events which lifetime has expired under the 'purge_jobs' section.
|
|
#
|
|
# If no configuration is provided, a single job will be set up to delete expired
|
|
# events in every room daily.
|
|
#
|
|
# Each job's configuration defines which range of message lifetimes the job
|
|
# takes care of. For example, if 'shortest_max_lifetime' is '2d' and
|
|
# 'longest_max_lifetime' is '3d', the job will handle purging expired events in
|
|
# rooms whose state defines a 'max_lifetime' that's both higher than 2 days, and
|
|
# lower than or equal to 3 days. Both the minimum and the maximum value of a
|
|
# range are optional, e.g. a job with no 'shortest_max_lifetime' and a
|
|
# 'longest_max_lifetime' of '3d' will handle every room with a retention policy
|
|
# which 'max_lifetime' is lower than or equal to three days.
|
|
#
|
|
# The rationale for this per-job configuration is that some rooms might have a
|
|
# retention policy with a low 'max_lifetime', where history needs to be purged
|
|
# of outdated messages on a more frequent basis than for the rest of the rooms
|
|
# (e.g. every 12h), but not want that purge to be performed by a job that's
|
|
# iterating over every room it knows, which could be heavy on the server.
|
|
#
|
|
# If any purge job is configured, it is strongly recommended to have at least
|
|
# a single job with neither 'shortest_max_lifetime' nor 'longest_max_lifetime'
|
|
# set, or one job without 'shortest_max_lifetime' and one job without
|
|
# 'longest_max_lifetime' set. Otherwise some rooms might be ignored, even if
|
|
# 'allowed_lifetime_min' and 'allowed_lifetime_max' are set, because capping a
|
|
# room's policy to these values is done after the policies are retrieved from
|
|
# Synapse's database (which is done using the range specified in a purge job's
|
|
# configuration).
|
|
#
|
|
#purge_jobs:
|
|
# - longest_max_lifetime: 3d
|
|
# interval: 12h
|
|
# - shortest_max_lifetime: 3d
|
|
# interval: 1d
|
|
|
|
# Inhibits the /requestToken endpoints from returning an error that might leak
|
|
# information about whether an e-mail address is in use or not on this
|
|
# homeserver.
|
|
# Note that for some endpoints the error situation is the e-mail already being
|
|
# used, and for others the error is entering the e-mail being unused.
|
|
# If this option is enabled, instead of returning an error, these endpoints will
|
|
# act as if no error happened and return a fake session ID ('sid') to clients.
|
|
#
|
|
#request_token_inhibit_3pid_errors: true
|
|
|
|
# A list of domains that the domain portion of 'next_link' parameters
|
|
# must match.
|
|
#
|
|
# This parameter is optionally provided by clients while requesting
|
|
# validation of an email or phone number, and maps to a link that
|
|
# users will be automatically redirected to after validation
|
|
# succeeds. Clients can make use this parameter to aid the validation
|
|
# process.
|
|
#
|
|
# The whitelist is applied whether the homeserver or an
|
|
# identity server is handling validation.
|
|
#
|
|
# The default value is no whitelist functionality; all domains are
|
|
# allowed. Setting this value to an empty list will instead disallow
|
|
# all domains.
|
|
#
|
|
#next_link_domain_whitelist: ["matrix.org"]
|
|
"""
|
|
% locals()
|
|
)
|
|
|
|
def read_arguments(self, args):
|
|
if args.manhole is not None:
|
|
self.manhole = args.manhole
|
|
if args.daemonize is not None:
|
|
self.daemonize = args.daemonize
|
|
if args.print_pidfile is not None:
|
|
self.print_pidfile = args.print_pidfile
|
|
|
|
@staticmethod
|
|
def add_arguments(parser):
|
|
server_group = parser.add_argument_group("server")
|
|
server_group.add_argument(
|
|
"-D",
|
|
"--daemonize",
|
|
action="store_true",
|
|
default=None,
|
|
help="Daemonize the homeserver",
|
|
)
|
|
server_group.add_argument(
|
|
"--print-pidfile",
|
|
action="store_true",
|
|
default=None,
|
|
help="Print the path to the pidfile just before daemonizing",
|
|
)
|
|
server_group.add_argument(
|
|
"--manhole",
|
|
metavar="PORT",
|
|
dest="manhole",
|
|
type=int,
|
|
help="Turn on the twisted telnet manhole service on the given port.",
|
|
)
|
|
|
|
|
|
def is_threepid_reserved(reserved_threepids, threepid):
|
|
"""Check the threepid against the reserved threepid config
|
|
Args:
|
|
reserved_threepids([dict]) - list of reserved threepids
|
|
threepid(dict) - The threepid to test for
|
|
|
|
Returns:
|
|
boolean Is the threepid undertest reserved_user
|
|
"""
|
|
|
|
for tp in reserved_threepids:
|
|
if threepid["medium"] == tp["medium"] and threepid["address"] == tp["address"]:
|
|
return True
|
|
return False
|
|
|
|
|
|
def read_gc_thresholds(thresholds):
|
|
"""Reads the three integer thresholds for garbage collection. Ensures that
|
|
the thresholds are integers if thresholds are supplied.
|
|
"""
|
|
if thresholds is None:
|
|
return None
|
|
try:
|
|
assert len(thresholds) == 3
|
|
return (int(thresholds[0]), int(thresholds[1]), int(thresholds[2]))
|
|
except Exception:
|
|
raise ConfigError(
|
|
"Value of `gc_threshold` must be a list of three integers if set"
|
|
)
|
|
|
|
|
|
def parse_listener_def(listener: Any) -> ListenerConfig:
|
|
"""parse a listener config from the config file"""
|
|
listener_type = listener["type"]
|
|
|
|
port = listener.get("port")
|
|
if not isinstance(port, int):
|
|
raise ConfigError("Listener configuration is lacking a valid 'port' option")
|
|
|
|
tls = listener.get("tls", False)
|
|
|
|
bind_addresses = listener.get("bind_addresses", [])
|
|
bind_address = listener.get("bind_address")
|
|
# if bind_address was specified, add it to the list of addresses
|
|
if bind_address:
|
|
bind_addresses.append(bind_address)
|
|
|
|
# if we still have an empty list of addresses, use the default list
|
|
if not bind_addresses:
|
|
if listener_type == "metrics":
|
|
# the metrics listener doesn't support IPv6
|
|
bind_addresses.append("0.0.0.0")
|
|
else:
|
|
bind_addresses.extend(DEFAULT_BIND_ADDRESSES)
|
|
|
|
http_config = None
|
|
if listener_type == "http":
|
|
http_config = HttpListenerConfig(
|
|
x_forwarded=listener.get("x_forwarded", False),
|
|
resources=[
|
|
HttpResourceConfig(**res) for res in listener.get("resources", [])
|
|
],
|
|
additional_resources=listener.get("additional_resources", {}),
|
|
tag=listener.get("tag"),
|
|
)
|
|
|
|
return ListenerConfig(port, bind_addresses, listener_type, tls, http_config)
|
|
|
|
|
|
NO_MORE_WEB_CLIENT_WARNING = """
|
|
Synapse no longer includes a web client. To enable a web client, configure
|
|
web_client_location. To remove this warning, remove 'webclient' from the 'listeners'
|
|
configuration.
|
|
"""
|
|
|
|
|
|
def _warn_if_webclient_configured(listeners: Iterable[ListenerConfig]) -> None:
|
|
for listener in listeners:
|
|
if not listener.http_options:
|
|
continue
|
|
for res in listener.http_options.resources:
|
|
for name in res.names:
|
|
if name == "webclient":
|
|
logger.warning(NO_MORE_WEB_CLIENT_WARNING)
|
|
return
|