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synapse-product/synapse/config/server.py

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# Copyright 2014-2021 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import argparse
import itertools
import logging
import os.path
import re
import urllib.parse
from textwrap import indent
from typing import Any, Dict, Iterable, List, Optional, Set, Tuple, Union
import attr
import yaml
from netaddr import AddrFormatError, IPNetwork, IPSet
from twisted.conch.ssh.keys import Key
from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
from synapse.types import JsonDict
from synapse.util.module_loader import load_module
from synapse.util.stringutils import parse_and_validate_server_name
from ._base import Config, ConfigError
from ._util import validate_config
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"]
def _6to4(network: IPNetwork) -> IPNetwork:
"""Convert an IPv4 network into a 6to4 IPv6 network per RFC 3056."""
# 6to4 networks consist of:
# * 2002 as the first 16 bits
# * The first IPv4 address in the network hex-encoded as the next 32 bits
# * The new prefix length needs to include the bits from the 2002 prefix.
hex_network = hex(network.first)[2:]
hex_network = ("0" * (8 - len(hex_network))) + hex_network
return IPNetwork(
"2002:%s:%s::/%d"
% (
hex_network[:4],
hex_network[4:],
16 + network.prefixlen,
)
)
def generate_ip_set(
ip_addresses: Optional[Iterable[str]],
extra_addresses: Optional[Iterable[str]] = None,
config_path: Optional[Iterable[str]] = None,
) -> IPSet:
"""
Generate an IPSet from a list of IP addresses or CIDRs.
Additionally, for each IPv4 network in the list of IP addresses, also
includes the corresponding IPv6 networks.
This includes:
* IPv4-Compatible IPv6 Address (see RFC 4291, section 2.5.5.1)
* IPv4-Mapped IPv6 Address (see RFC 4291, section 2.5.5.2)
* 6to4 Address (see RFC 3056, section 2)
Args:
ip_addresses: An iterable of IP addresses or CIDRs.
extra_addresses: An iterable of IP addresses or CIDRs.
config_path: The path in the configuration for error messages.
Returns:
A new IP set.
"""
result = IPSet()
for ip in itertools.chain(ip_addresses or (), extra_addresses or ()):
try:
network = IPNetwork(ip)
except AddrFormatError as e:
raise ConfigError(
"Invalid IP range provided: %s." % (ip,), config_path
) from e
result.add(network)
# It is possible that these already exist in the set, but that's OK.
if ":" not in str(network):
result.add(IPNetwork(network).ipv6(ipv4_compatible=True))
result.add(IPNetwork(network).ipv6(ipv4_compatible=False))
result.add(_6to4(network))
return result
# IP ranges that are considered private / unroutable / don't make sense.
DEFAULT_IP_RANGE_BLACKLIST = [
# Localhost
"127.0.0.0/8",
# Private networks.
"10.0.0.0/8",
"172.16.0.0/12",
"192.168.0.0/16",
# Carrier grade NAT.
"100.64.0.0/10",
# Address registry.
"192.0.0.0/24",
# Link-local networks.
"169.254.0.0/16",
# Formerly used for 6to4 relay.
"192.88.99.0/24",
# Testing networks.
"198.18.0.0/15",
"192.0.2.0/24",
"198.51.100.0/24",
"203.0.113.0/24",
# Multicast.
"224.0.0.0/4",
# Localhost
"::1/128",
# Link-local addresses.
"fe80::/10",
# Unique local addresses.
"fc00::/7",
# Testing networks.
"2001:db8::/32",
# Multicast.
"ff00::/8",
# Site-local addresses
"fec0::/10",
]
DEFAULT_ROOM_VERSION = "9"
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://matrix-org.github.io/synapse/latest/metrics-howto.html
on how to configure the new listener.
--------------------------------------------------------------------------------"""
KNOWN_LISTENER_TYPES = {
"http",
"metrics",
"manhole",
"replication",
}
KNOWN_RESOURCES = {
"client",
"consent",
"federation",
"keys",
"media",
"metrics",
"openid",
"replication",
"static",
}
@attr.s(frozen=True)
class HttpResourceConfig:
names: List[str] = attr.ib(
factory=list,
validator=attr.validators.deep_iterable(attr.validators.in_(KNOWN_RESOURCES)), # type: ignore
)
compress: bool = attr.ib(
default=False,
validator=attr.validators.optional(attr.validators.instance_of(bool)), # type: ignore[arg-type]
)
@attr.s(slots=True, frozen=True, auto_attribs=True)
class HttpListenerConfig:
"""Object describing the http-specific parts of the config of a listener"""
x_forwarded: bool = False
resources: List[HttpResourceConfig] = attr.Factory(list)
additional_resources: Dict[str, dict] = attr.Factory(dict)
tag: Optional[str] = None
@attr.s(slots=True, frozen=True, auto_attribs=True)
class ListenerConfig:
"""Object describing the configuration of a single listener."""
port: int = attr.ib(validator=attr.validators.instance_of(int))
bind_addresses: List[str]
type: str = attr.ib(validator=attr.validators.in_(KNOWN_LISTENER_TYPES))
tls: bool = False
# http_options is only populated if type=http
http_options: Optional[HttpListenerConfig] = None
@attr.s(slots=True, frozen=True, auto_attribs=True)
class ManholeConfig:
"""Object describing the configuration of the manhole"""
username: str = attr.ib(validator=attr.validators.instance_of(str))
password: str = attr.ib(validator=attr.validators.instance_of(str))
priv_key: Optional[Key]
pub_key: Optional[Key]
@attr.s(frozen=True)
class LimitRemoteRoomsConfig:
enabled: bool = attr.ib(validator=attr.validators.instance_of(bool), default=False)
complexity: Union[float, int] = attr.ib(
validator=attr.validators.instance_of(
(float, int) # type: ignore[arg-type] # noqa
),
default=1.0,
)
complexity_error: str = attr.ib(
validator=attr.validators.instance_of(str),
default=ROOM_COMPLEXITY_TOO_GREAT,
)
admins_can_join: bool = attr.ib(
validator=attr.validators.instance_of(bool), default=False
)
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.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.serve_server_wellknown = config.get("serve_server_wellknown", False)
# Whether we should serve a "client well-known":
# (a) at .well-known/matrix/client on our client HTTP listener
# (b) in the response to /login
#
# ... which together help ensure that clients use our public_baseurl instead of
# whatever they were told by the user.
#
# For the sake of backwards compatibility with existing installations, this is
# True if public_baseurl is specified explicitly, and otherwise False. (The
# reasoning here is that we have no way of knowing that the default
# public_baseurl is actually correct for existing installations - many things
# will not work correctly, but that's (probably?) better than sending clients
# to a completely broken URL.
self.serve_client_wellknown = False
public_baseurl = config.get("public_baseurl")
if public_baseurl is None:
public_baseurl = f"https://{self.server_name}/"
logger.info("Using default public_baseurl %s", public_baseurl)
else:
self.serve_client_wellknown = True
if public_baseurl[-1] != "/":
public_baseurl += "/"
self.public_baseurl = public_baseurl
# check that public_baseurl is valid
try:
splits = urllib.parse.urlsplit(self.public_baseurl)
except Exception as e:
raise ConfigError(f"Unable to parse URL: {e}", ("public_baseurl",))
if splits.scheme not in ("https", "http"):
raise ConfigError(
f"Invalid scheme '{splits.scheme}': only https and http are supported"
)
if splits.query or splits.fragment:
raise ConfigError(
"public_baseurl cannot contain query parameters or a #-fragment"
)
# Whether to enable user presence.
presence_config = config.get("presence") or {}
self.use_presence = presence_config.get("enabled")
if self.use_presence is None:
self.use_presence = config.get("use_presence", True)
# Custom presence router module
# This is the legacy way of configuring it (the config should now be put in the modules section)
self.presence_router_module_class = None
self.presence_router_config = None
presence_router_config = presence_config.get("presence_router")
if presence_router_config:
(
self.presence_router_module_class,
self.presence_router_config,
) = load_module(presence_router_config, ("presence", "presence_router"))
# 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
)
# Whether to require sharing a room with a user to retrieve their
# profile data
self.limit_profile_requests_to_users_who_share_rooms = config.get(
"limit_profile_requests_to_users_who_share_rooms",
False,
)
# Whether to retrieve and display profile data for a user when they
# are invited to a room
self.include_profile_data_on_invite = config.get(
"include_profile_data_on_invite", True
)
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 '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'.
self.allow_public_rooms_without_auth = config.get(
"allow_public_rooms_without_auth", False
)
# If set to 'true', allows any other homeserver to fetch the server's public
# rooms directory via federation. Defaults to 'false'.
self.allow_public_rooms_over_federation = config.get(
"allow_public_rooms_over_federation", False
)
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", 100)
# 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)
# 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: Optional[int] = 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: Optional[int] = 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)
ip_range_blacklist = config.get(
"ip_range_blacklist", DEFAULT_IP_RANGE_BLACKLIST
)
# Attempt to create an IPSet from the given ranges
# Always blacklist 0.0.0.0, ::
self.ip_range_blacklist = generate_ip_set(
ip_range_blacklist, ["0.0.0.0", "::"], config_path=("ip_range_blacklist",)
)
self.ip_range_whitelist = generate_ip_set(
config.get("ip_range_whitelist", ()), config_path=("ip_range_whitelist",)
)
# The federation_ip_range_blacklist is used for backwards-compatibility
# and only applies to federation and identity servers.
if "federation_ip_range_blacklist" in config:
# Always blacklist 0.0.0.0, ::
self.federation_ip_range_blacklist = generate_ip_set(
config["federation_ip_range_blacklist"],
["0.0.0.0", "::"],
config_path=("federation_ip_range_blacklist",),
)
# 'federation_ip_range_whitelist' was never a supported configuration option.
self.federation_ip_range_whitelist = None
else:
# No backwards-compatiblity requrired, as federation_ip_range_blacklist
# is not given. Default to ip_range_blacklist and ip_range_whitelist.
self.federation_ip_range_blacklist = self.ip_range_blacklist
self.federation_ip_range_whitelist = self.ip_range_whitelist
# (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)
# The maximum size an avatar can have, in bytes.
self.max_avatar_size = config.get("max_avatar_size")
if self.max_avatar_size is not None:
self.max_avatar_size = self.parse_size(self.max_avatar_size)
# The MIME types allowed for an avatar.
self.allowed_avatar_mimetypes = config.get("allowed_avatar_mimetypes")
if self.allowed_avatar_mimetypes and not isinstance(
self.allowed_avatar_mimetypes,
list,
):
raise ConfigError("allowed_avatar_mimetypes must be a list")
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
self.web_client_location = config.get("web_client_location", None)
# Non-HTTP(S) web client location is not supported.
if self.web_client_location and not (
self.web_client_location.startswith("http://")
or self.web_client_location.startswith("https://")
):
raise ConfigError("web_client_location must point to a HTTP(S) URL.")
self.gc_thresholds = read_gc_thresholds(config.get("gc_thresholds", None))
self.gc_seconds = self.read_gc_intervals(config.get("gc_min_interval", None))
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",
)
)
manhole_settings = config.get("manhole_settings") or {}
validate_config(
_MANHOLE_SETTINGS_SCHEMA, manhole_settings, ("manhole_settings",)
)
manhole_username = manhole_settings.get("username", "matrix")
manhole_password = manhole_settings.get("password", "rabbithole")
manhole_priv_key_path = manhole_settings.get("ssh_priv_key_path")
manhole_pub_key_path = manhole_settings.get("ssh_pub_key_path")
manhole_priv_key = None
if manhole_priv_key_path is not None:
try:
manhole_priv_key = Key.fromFile(manhole_priv_key_path)
except Exception as e:
raise ConfigError(
f"Failed to read manhole private key file {manhole_priv_key_path}"
) from e
manhole_pub_key = None
if manhole_pub_key_path is not None:
try:
manhole_pub_key = Key.fromFile(manhole_pub_key_path)
except Exception as e:
raise ConfigError(
f"Failed to read manhole public key file {manhole_pub_key_path}"
) from e
self.manhole_settings = ManholeConfig(
username=manhole_username,
password=manhole_password,
priv_key=manhole_priv_key,
pub_key=manhole_pub_key,
)
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,
)
# Whitelist of domain names that given next_link parameters must have
next_link_domain_whitelist: Optional[List[str]] = config.get(
"next_link_domain_whitelist"
)
self.next_link_domain_whitelist: Optional[Set[str]] = None
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)
templates_config = config.get("templates") or {}
if not isinstance(templates_config, dict):
raise ConfigError("The 'templates' section must be a dictionary")
self.custom_template_directory: Optional[str] = templates_config.get(
"custom_template_directory"
)
if self.custom_template_directory is not None and not isinstance(
self.custom_template_directory, str
):
raise ConfigError("'custom_template_directory' must be a string")
self.use_account_validity_in_account_status: bool = (
config.get("use_account_validity_in_account_status") or False
)
self.rooms_to_exclude_from_sync: List[str] = (
config.get("exclude_rooms_from_sync") or []
)
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,
config_dir_path,
**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://matrix-org.github.io/synapse/latest/delegate.html
# 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 / will redirect to.
#
#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).
#
# Defaults to 'https://<server_name>/'.
#
#public_baseurl: https://example.com/
# Uncomment the following to tell other servers to send federation traffic on
# port 443.
#
# By default, other servers will try to reach our server on port 8448, which can
# be inconvenient in some environments.
#
# Provided 'https://<server_name>/' on port 443 is routed to Synapse, this
# option configures Synapse to serve a file at
# 'https://<server_name>/.well-known/matrix/server'. This will tell other
# servers to send traffic to port 443 instead.
#
# See https://matrix-org.github.io/synapse/latest/delegate.html for more
# information.
#
# Defaults to 'false'.
#
#serve_server_wellknown: true
# 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
# Presence tracking allows users to see the state (e.g online/offline)
# of other local and remote users.
#
presence:
# Uncomment to disable presence tracking on this homeserver. This option
# replaces the previous top-level 'use_presence' option.
#
#enabled: 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://spec.matrix.org/latest/rooms/#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]
# The minimum time in seconds between each GC for a generation, regardless of
# the GC thresholds. This ensures that we don't do GC too frequently.
#
# A value of `[1s, 10s, 30s]` indicates that a second must pass between consecutive
# generation 0 GCs, etc.
#
# Defaults to `[1s, 10s, 30s]`.
#
#gc_min_interval: [0.5s, 30s, 1m]
# 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.
#
# Note: The value is ignored when an HTTP proxy is in use
#
#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 https://matrix-org.github.io/synapse/latest/manhole.html),
# 'metrics' (see https://matrix-org.github.io/synapse/latest/metrics-howto.html),
# 'replication' (see https://matrix-org.github.io/synapse/latest/workers.html).
#
# 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 https://matrix-org.github.io/synapse/latest/consent_tracking.html.
#
# 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 https://matrix-org.github.io/synapse/latest/metrics-howto.html.
#
# openid: OpenID authentication.
#
# replication: the HTTP replication API (/_synapse/replication).
# See https://matrix-org.github.io/synapse/latest/workers.html.
#
# static: static resources under synapse/static (/_matrix/static). (Mostly
# useful for 'fallback authentication'.)
#
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://matrix-org.github.io/synapse/latest/reverse_proxy.html.
#
%(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
# Connection settings for the manhole
#
manhole_settings:
# The username for the manhole. This defaults to 'matrix'.
#
#username: manhole
# The password for the manhole. This defaults to 'rabbithole'.
#
#password: mypassword
# The private and public SSH key pair used to encrypt the manhole traffic.
# If these are left unset, then hardcoded and non-secret keys are used,
# which could allow traffic to be intercepted if sent over a public network.
#
#ssh_priv_key_path: %(config_dir_path)s/id_rsa
#ssh_pub_key_path: %(config_dir_path)s/id_rsa.pub
# 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
# The largest allowed file size for a user avatar. Defaults to no restriction.
#
# Note that user avatar changes will not work if this is set without
# using Synapse's media repository.
#
#max_avatar_size: 10M
# The MIME types allowed for user avatars. Defaults to no restriction.
#
# Note that user avatar changes will not work if this is set without
# using Synapse's media repository.
#
#allowed_avatar_mimetypes: ["image/png", "image/jpeg", "image/gif"]
# 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
# 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"]
# Templates to use when generating email or HTML page contents.
#
templates:
# Directory in which Synapse will try to find template files to use to generate
# email or HTML page contents.
# If not set, or a file is not found within the template directory, a default
# template from within the Synapse package will be used.
#
# See https://matrix-org.github.io/synapse/latest/templates.html for more
# information about using custom templates.
#
#custom_template_directory: /path/to/custom/templates/
# List of rooms to exclude from sync responses. This is useful for server
# administrators wishing to group users into a room without these users being able
# to see it from their client.
#
# By default, no room is excluded.
#
#exclude_rooms_from_sync:
# - !foo:example.com
"""
% locals()
)
def read_arguments(self, args: argparse.Namespace) -> None:
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: argparse.ArgumentParser) -> None:
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 read_gc_intervals(self, durations: Any) -> Optional[Tuple[float, float, float]]:
"""Reads the three durations for the GC min interval option, returning seconds."""
if durations is None:
return None
try:
if len(durations) != 3:
raise ValueError()
return (
self.parse_duration(durations[0]) / 1000,
self.parse_duration(durations[1]) / 1000,
self.parse_duration(durations[2]) / 1000,
)
except Exception:
raise ConfigError(
"Value of `gc_min_interval` must be a list of three durations if set"
)
def is_threepid_reserved(
reserved_threepids: List[JsonDict], threepid: JsonDict
) -> bool:
"""Check the threepid against the reserved threepid config
Args:
reserved_threepids: List of reserved threepids
threepid: The threepid to test for
Returns:
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: Optional[List[Any]],
) -> Optional[Tuple[int, int, int]]:
"""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":
try:
resources = [
HttpResourceConfig(**res) for res in listener.get("resources", [])
]
except ValueError as e:
raise ConfigError("Unknown listener resource") from e
http_config = HttpListenerConfig(
x_forwarded=listener.get("x_forwarded", False),
resources=resources,
additional_resources=listener.get("additional_resources", {}),
tag=listener.get("tag"),
)
return ListenerConfig(port, bind_addresses, listener_type, tls, http_config)
_MANHOLE_SETTINGS_SCHEMA = {
"type": "object",
"properties": {
"username": {"type": "string"},
"password": {"type": "string"},
"ssh_priv_key_path": {"type": "string"},
"ssh_pub_key_path": {"type": "string"},
},
}
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