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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 itertools
- import logging
- import os.path
- import re
- 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.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 = "6"
- 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",
- "webclient",
- }
- @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.ib(factory=list)
- additional_resources: Dict[str, dict] = attr.ib(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.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.serve_server_wellknown = config.get("serve_server_wellknown", False)
- self.public_baseurl = config.get("public_baseurl")
- if self.public_baseurl is not None:
- if self.public_baseurl[-1] != "/":
- self.public_baseurl += "/"
- # 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 = 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)
- 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)
- 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))
- 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,
- )
- # 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: list = (
- config.get("users_new_default_push_rules") or []
- )
- 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 = set(users_new_default_push_rules)
- # 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")
- 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 /_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/
- # 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://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]
- # 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'.)
- #
- # 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://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
- # 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/
- """
- % 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 read_gc_intervals(self, durations) -> 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, 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
- _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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