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54dd5dc12b
synapse-product/synapse/config/server.py
Brendan Abolivier 54dd5dc12b
Add ephemeral messages support (MSC2228) (#6409) 
Implement part [MSC2228](https://github.com/matrix-org/matrix-doc/pull/2228). The parts that differ are:

* the feature is hidden behind a configuration flag (`enable_ephemeral_messages`)
* self-destruction doesn't happen for state events
* only implement support for the `m.self_destruct_after` field (not the `m.self_destruct` one)
* doesn't send synthetic redactions to clients because for this specific case we consider the clients to be able to destroy an event themselves, instead we just censor it (by pruning its JSON) in the database
2019-12-03 19:19:45 +00:00

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# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2017-2018 New Vector Ltd
# Copyright 2019 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import os.path
import re
from textwrap import indent
from typing import Dict, List, Optional
import attr
import yaml
from netaddr import IPSet
from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
from synapse.http.endpoint import parse_and_validate_server_name
from synapse.python_dependencies import DependencyException, check_requirements
from ._base import Config, ConfigError
logger = logging.Logger(__name__)
# by default, we attempt to listen on both '::' *and* '0.0.0.0' because some OSes
# (Windows, macOS, other BSD/Linux where net.ipv6.bindv6only is set) will only listen
# on IPv6 when '::' is set.
#
# We later check for errors when binding to 0.0.0.0 and ignore them if :: is also in
# in the list.
DEFAULT_BIND_ADDRESSES = ["::", "0.0.0.0"]
DEFAULT_ROOM_VERSION = "5"
ROOM_COMPLEXITY_TOO_GREAT = (
"Your homeserver is unable to join rooms this large or complex. "
"Please speak to your server administrator, or upgrade your instance "
"to join this room."
)
METRICS_PORT_WARNING = """\
The metrics_port configuration option is deprecated in Synapse 0.31 in favour of
a listener. Please see
https://github.com/matrix-org/synapse/blob/master/docs/metrics-howto.md
on how to configure the new listener.
--------------------------------------------------------------------------------"""
class ServerConfig(Config):
section = "server"
def read_config(self, config, **kwargs):
self.server_name = config["server_name"]
self.server_context = config.get("server_context", None)
try:
parse_and_validate_server_name(self.server_name)
except ValueError as e:
raise ConfigError(str(e))
self.pid_file = self.abspath(config.get("pid_file"))
self.web_client_location = config.get("web_client_location", None)
self.soft_file_limit = config.get("soft_file_limit", 0)
self.daemonize = config.get("daemonize")
self.print_pidfile = config.get("print_pidfile")
self.user_agent_suffix = config.get("user_agent_suffix")
self.use_frozen_dicts = config.get("use_frozen_dicts", False)
self.public_baseurl = config.get("public_baseurl")
# Whether to send federation traffic out in this process. This only
# applies to some federation traffic, and so shouldn't be used to
# "disable" federation
self.send_federation = config.get("send_federation", True)
# Whether to enable user presence.
self.use_presence = config.get("use_presence", True)
# Whether to update the user directory or not. This should be set to
# false only if we are updating the user directory in a worker
self.update_user_directory = config.get("update_user_directory", True)
# whether to enable the media repository endpoints. This should be set
# to false if the media repository is running as a separate endpoint;
# doing so ensures that we will not run cache cleanup jobs on the
# master, potentially causing inconsistency.
self.enable_media_repo = config.get("enable_media_repo", True)
# Whether to require authentication to retrieve profile data (avatars,
# display names) of other users through the client API.
self.require_auth_for_profile_requests = config.get(
"require_auth_for_profile_requests", False
)
if "restrict_public_rooms_to_local_users" in config and (
"allow_public_rooms_without_auth" in config
or "allow_public_rooms_over_federation" in config
):
raise ConfigError(
"Can't use 'restrict_public_rooms_to_local_users' if"
" 'allow_public_rooms_without_auth' and/or"
" 'allow_public_rooms_over_federation' is set."
)
# Check if the legacy "restrict_public_rooms_to_local_users" flag is set. This
# flag is now obsolete but we need to check it for backward-compatibility.
if config.get("restrict_public_rooms_to_local_users", False):
self.allow_public_rooms_without_auth = False
self.allow_public_rooms_over_federation = False
else:
# If set to 'False', requires authentication to access the server's public
# rooms directory through the client API. Defaults to 'True'.
self.allow_public_rooms_without_auth = config.get(
"allow_public_rooms_without_auth", True
)
# If set to 'False', forbids any other homeserver to fetch the server's public
# rooms directory via federation. Defaults to 'True'.
self.allow_public_rooms_over_federation = config.get(
"allow_public_rooms_over_federation", True
)
default_room_version = config.get("default_room_version", DEFAULT_ROOM_VERSION)
# Ensure room version is a str
default_room_version = str(default_room_version)
if default_room_version not in KNOWN_ROOM_VERSIONS:
raise ConfigError(
"Unknown default_room_version: %s, known room versions: %s"
% (default_room_version, list(KNOWN_ROOM_VERSIONS.keys()))
)
# Get the actual room version object rather than just the identifier
self.default_room_version = KNOWN_ROOM_VERSIONS[default_room_version]
# whether to enable search. If disabled, new entries will not be inserted
# into the search tables and they will not be indexed. Users will receive
# errors when attempting to search for messages.
self.enable_search = config.get("enable_search", True)
self.filter_timeline_limit = config.get("filter_timeline_limit", -1)
# Whether we should block invites sent to users on this server
# (other than those sent by local server admins)
self.block_non_admin_invites = config.get("block_non_admin_invites", False)
# Whether to enable experimental MSC1849 (aka relations) support
self.experimental_msc1849_support_enabled = config.get(
"experimental_msc1849_support_enabled", True
)
# Options to control access by tracking MAU
self.limit_usage_by_mau = config.get("limit_usage_by_mau", False)
self.max_mau_value = 0
if self.limit_usage_by_mau:
self.max_mau_value = config.get("max_mau_value", 0)
self.mau_stats_only = config.get("mau_stats_only", False)
self.mau_limits_reserved_threepids = config.get(
"mau_limit_reserved_threepids", []
)
self.mau_trial_days = config.get("mau_trial_days", 0)
self.mau_limit_alerting = config.get("mau_limit_alerting", True)
# How long to keep redacted events in the database in unredacted form
# before redacting them.
redaction_retention_period = config.get("redaction_retention_period", "7d")
if redaction_retention_period is not None:
self.redaction_retention_period = self.parse_duration(
redaction_retention_period
)
else:
self.redaction_retention_period = None
# How long to keep entries in the `users_ips` table.
user_ips_max_age = config.get("user_ips_max_age", "28d")
if user_ips_max_age is not None:
self.user_ips_max_age = self.parse_duration(user_ips_max_age)
else:
self.user_ips_max_age = None
# Options to disable HS
self.hs_disabled = config.get("hs_disabled", False)
self.hs_disabled_message = config.get("hs_disabled_message", "")
# Admin uri to direct users at should their instance become blocked
# due to resource constraints
self.admin_contact = config.get("admin_contact", None)
# FIXME: federation_domain_whitelist needs sytests
self.federation_domain_whitelist = None
federation_domain_whitelist = config.get("federation_domain_whitelist", None)
if federation_domain_whitelist is not None:
# turn the whitelist into a hash for speed of lookup
self.federation_domain_whitelist = {}
for domain in federation_domain_whitelist:
self.federation_domain_whitelist[domain] = True
self.federation_ip_range_blacklist = config.get(
"federation_ip_range_blacklist", []
)
# Attempt to create an IPSet from the given ranges
try:
self.federation_ip_range_blacklist = IPSet(
self.federation_ip_range_blacklist
)
# Always blacklist 0.0.0.0, ::
self.federation_ip_range_blacklist.update(["0.0.0.0", "::"])
except Exception as e:
raise ConfigError(
"Invalid range(s) provided in federation_ip_range_blacklist: %s" % e
)
if self.public_baseurl is not None:
if self.public_baseurl[-1] != "/":
self.public_baseurl += "/"
self.start_pushers = config.get("start_pushers", True)
# (undocumented) option for torturing the worker-mode replication a bit,
# for testing. The value defines the number of milliseconds to pause before
# sending out any replication updates.
self.replication_torture_level = config.get("replication_torture_level")
# Whether to require a user to be in the room to add an alias to it.
# Defaults to True.
self.require_membership_for_aliases = config.get(
"require_membership_for_aliases", True
)
# Whether to allow per-room membership profiles through the send of membership
# events with profile information that differ from the target's global profile.
self.allow_per_room_profiles = config.get("allow_per_room_profiles", True)
retention_config = config.get("retention")
if retention_config is None:
retention_config = {}
self.retention_enabled = retention_config.get("enabled", False)
retention_default_policy = retention_config.get("default_policy")
if retention_default_policy is not None:
self.retention_default_min_lifetime = retention_default_policy.get(
"min_lifetime"
)
if self.retention_default_min_lifetime is not None:
self.retention_default_min_lifetime = self.parse_duration(
self.retention_default_min_lifetime
)
self.retention_default_max_lifetime = retention_default_policy.get(
"max_lifetime"
)
if self.retention_default_max_lifetime is not None:
self.retention_default_max_lifetime = self.parse_duration(
self.retention_default_max_lifetime
)
if (
self.retention_default_min_lifetime is not None
and self.retention_default_max_lifetime is not None
and (
self.retention_default_min_lifetime
> self.retention_default_max_lifetime
)
):
raise ConfigError(
"The default retention policy's 'min_lifetime' can not be greater"
" than its 'max_lifetime'"
)
else:
self.retention_default_min_lifetime = None
self.retention_default_max_lifetime = None
self.retention_allowed_lifetime_min = retention_config.get(
"allowed_lifetime_min"
)
if self.retention_allowed_lifetime_min is not None:
self.retention_allowed_lifetime_min = self.parse_duration(
self.retention_allowed_lifetime_min
)
self.retention_allowed_lifetime_max = retention_config.get(
"allowed_lifetime_max"
)
if self.retention_allowed_lifetime_max is not None:
self.retention_allowed_lifetime_max = self.parse_duration(
self.retention_allowed_lifetime_max
)
if (
self.retention_allowed_lifetime_min is not None
and self.retention_allowed_lifetime_max is not None
and self.retention_allowed_lifetime_min
> self.retention_allowed_lifetime_max
):
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 = [] # type: List[dict]
for listener in config.get("listeners", []):
if not isinstance(listener.get("port", None), int):
raise ConfigError(
"Listener configuration is lacking a valid 'port' option"
)
if listener.setdefault("tls", False):
# no_tls is not really supported any more, but let's grandfather it in
# here.
if config.get("no_tls", False):
logger.info(
"Ignoring TLS-enabled listener on port %i due to no_tls"
)
continue
bind_address = listener.pop("bind_address", None)
bind_addresses = listener.setdefault("bind_addresses", [])
# 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)
self.listeners.append(listener)
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(object):
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,
)
self.limit_remote_rooms = LimitRemoteRoomsConfig(
**config.get("limit_remote_rooms", {})
)
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)
self.listeners.append(
{
"port": bind_port,
"bind_addresses": [bind_host],
"tls": True,
"type": "http",
"resources": [
{"names": ["client"], "compress": gzip_responses},
{"names": ["federation"], "compress": False},
],
}
)
unsecure_port = config.get("unsecure_port", bind_port - 400)
if unsecure_port:
self.listeners.append(
{
"port": unsecure_port,
"bind_addresses": [bind_host],
"tls": False,
"type": "http",
"resources": [
{"names": ["client"], "compress": gzip_responses},
{"names": ["federation"], "compress": False},
],
}
)
manhole = config.get("manhole")
if manhole:
self.listeners.append(
{
"port": manhole,
"bind_addresses": ["127.0.0.1"],
"type": "manhole",
"tls": False,
}
)
metrics_port = config.get("metrics_port")
if metrics_port:
logger.warning(METRICS_PORT_WARNING)
self.listeners.append(
{
"port": metrics_port,
"bind_addresses": [config.get("metrics_bind_host", "127.0.0.1")],
"tls": False,
"type": "http",
"resources": [{"names": ["metrics"], "compress": False}],
}
)
_check_resource_config(self.listeners)
self.cleanup_extremities_with_dummy_events = config.get(
"cleanup_extremities_with_dummy_events", True
)
self.enable_ephemeral_messages = config.get("enable_ephemeral_messages", False)
def has_tls_listener(self) -> bool:
return any(l["tls"] for l in self.listeners)
def generate_config_section(
self, server_name, data_dir_path, open_private_ports, listeners, **kwargs
):
_, 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 domain name of the server, with optional explicit port.
# This is used by remote servers to connect to this server,
# e.g. matrix.org, localhost:8080, etc.
# This is also the last part of your UserID.
#
server_name: "%(server_name)s"
# When running as a daemon, the file to store the pid in
#
pid_file: %(pid_file)s
# The path to the web client which will be served at /_matrix/client/
# if 'webclient' is configured under the 'listeners' configuration.
#
#web_client_location: "/path/to/web/root"
# The public-facing base URL that clients use to access this HS
# (not including _matrix/...). This is the same URL a user would
# enter into the 'custom HS URL' field on their client. If you
# use synapse with a reverse proxy, this should be the URL to reach
# synapse via the proxy.
#
#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, so this setting is of limited value if federation is enabled on
# the server.
#
#require_auth_for_profile_requests: true
# If set to 'false', requires authentication to access the server's public rooms
# directory through the client API. Defaults to 'true'.
#
#allow_public_rooms_without_auth: false
# If set to 'false', forbids any other homeserver to fetch the server's public
# rooms directory via federation. Defaults to 'true'.
#
#allow_public_rooms_over_federation: false
# 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 -1, means no upper limit.
#
#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
# Restrict federation to the following whitelist of domains.
# N.B. we recommend also firewalling your federation listener to limit
# inbound federation traffic as early as possible, rather than relying
# purely on this application-layer restriction. If not specified, the
# default is to whitelist everything.
#
#federation_domain_whitelist:
# - lon.example.com
# - nyc.example.com
# - syd.example.com
# Prevent federation requests from being sent to the following
# blacklist IP address CIDR ranges. If this option is not specified, or
# specified with an empty list, no ip range blacklist will be enforced.
#
# As of Synapse v1.4.0 this option also affects any outbound requests to identity
# servers provided by user input.
#
# (0.0.0.0 and :: are always blacklisted, whether or not they are explicitly
# listed here, since they correspond to unroutable addresses.)
#
federation_ip_range_blacklist:
- '127.0.0.0/8'
- '10.0.0.0/8'
- '172.16.0.0/12'
- '192.168.0.0/16'
- '100.64.0.0/10'
- '169.254.0.0/16'
- '::1/128'
- 'fe80::/64'
- 'fc00::/7'
# 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 comression 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
## 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
# anabled 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
#
# If limit_remote_rooms.enabled is True, the room complexity will be
# checked before a user joins a new remote room. If it is above
# limit_remote_rooms.complexity, it will disallow joining or
# instantly leave.
#
# limit_remote_rooms.complexity_error can be set to customise the text
# displayed to the user when a room above the complexity threshold has
# its join cancelled.
#
# Uncomment the below lines to enable:
#limit_remote_rooms:
# enabled: true
# complexity: 1.0
# complexity_error: "This room is too complex."
# 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, a user won't be able to send a
# 'm.room.retention' event which features a 'min_lifetime' or a 'max_lifetime'
# that's not within this range. This is especially useful in closed federations,
# in which server admins can make sure every federating server applies the same
# rules.
#
#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 very frequent basis (e.g. every 5min), but not want
# that purge to be performed by a job that's iterating over every room it knows,
# which would be quite heavy on the server.
#
#purge_jobs:
# - shortest_max_lifetime: 1d
# longest_max_lifetime: 3d
# interval: 5m:
# - shortest_max_lifetime: 3d
# longest_max_lifetime: 1y
# interval: 24h
"""
% 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"
)
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):
for listener in listeners:
for res in listener.get("resources", []):
for name in res.get("names", []):
if name == "webclient":
logger.warning(NO_MORE_WEB_CLIENT_WARNING)
return
KNOWN_RESOURCES = (
"client",
"consent",
"federation",
"keys",
"media",
"metrics",
"openid",
"replication",
"static",
"webclient",
)
def _check_resource_config(listeners):
resource_names = set(
res_name
for listener in listeners
for res in listener.get("resources", [])
for res_name in res.get("names", [])
)
for resource in resource_names:
if resource not in KNOWN_RESOURCES:
raise ConfigError("Unknown listener resource '%s'" % (resource,))
if resource == "consent":
try:
check_requirements("resources.consent")
except DependencyException as e:
raise ConfigError(e.message)
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