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synapse/synapse/config/server.py
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Eric Eastwood 98f84256e9 Configure HTTP proxy in file config (#18686) 
This PR makes it possible to configure the HTTP proxy on a per-homeserver-tenant basis.

`http_proxy`, `https_proxy`, `no_proxy_hosts`
2025-07-22 10:33:00 -05:00

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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2014-2021 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023-2024 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
import argparse
import itertools
import logging
import os.path
import urllib.parse
from textwrap import indent
from typing import Any, Dict, Iterable, List, Optional, Set, Tuple, TypedDict, Union
from urllib.request import getproxies_environment
import attr
import yaml
from netaddr import AddrFormatError, IPNetwork, IPSet
from typing_extensions import TypeGuard
from twisted.conch.ssh.keys import Key
from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
from synapse.types import JsonDict, StrSequence
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.getLogger(__name__)
# Directly from the mypy docs:
# https://typing.python.org/en/latest/spec/narrowing.html#typeguard
def is_str_list(val: Any, allow_empty: bool) -> TypeGuard[list[str]]:
"""
Type-narrow a value to a list of strings (compatible with mypy).
"""
if not isinstance(val, list):
return False
if len(val) == 0:
return allow_empty
return all(isinstance(x, str) for x in val)
DIRECT_TCP_ERROR = """
Using direct TCP replication for workers is no longer supported.
Please see https://element-hq.github.io/synapse/latest/upgrade.html#direct-tcp-replication-is-no-longer-supported-migrate-to-redis
"""
# 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[StrSequence] = 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_BLOCKLIST = [
# 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 = "10"
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://element-hq.github.io/synapse/latest/metrics-howto.html
on how to configure the new listener.
--------------------------------------------------------------------------------"""
KNOWN_LISTENER_TYPES = {
"http",
"metrics",
"manhole",
}
KNOWN_RESOURCES = {
"client",
"consent",
"federation",
"health",
"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)),
)
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
request_id_header: Optional[str] = None
@attr.s(slots=True, frozen=True, auto_attribs=True)
class TCPListenerConfig:
"""Object describing the configuration of a single TCP listener."""
port: int = attr.ib(validator=attr.validators.instance_of(int))
bind_addresses: List[str] = attr.ib(validator=attr.validators.instance_of(List))
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
def get_site_tag(self) -> str:
"""Retrieves http_options.tag if it exists, otherwise the port number."""
if self.http_options and self.http_options.tag is not None:
return self.http_options.tag
else:
return str(self.port)
def is_tls(self) -> bool:
return self.tls
@attr.s(slots=True, frozen=True, auto_attribs=True)
class UnixListenerConfig:
"""Object describing the configuration of a single Unix socket listener."""
# Note: unix sockets can not be tls encrypted, so HAVE to be behind a tls-handling
# reverse proxy
path: str = attr.ib()
# A default(0o666) for this is set in parse_listener_def() below
mode: int
type: str = attr.ib(validator=attr.validators.in_(KNOWN_LISTENER_TYPES))
# http_options is only populated if type=http
http_options: Optional[HttpListenerConfig] = None
def get_site_tag(self) -> str:
return "unix"
def is_tls(self) -> bool:
"""Unix sockets can't have TLS"""
return False
ListenerConfig = Union[TCPListenerConfig, UnixListenerConfig]
@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)), # 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 ProxyConfigDictionary(TypedDict):
"""
Dictionary of proxy settings suitable for interacting with `urllib.request` API's
"""
http: Optional[str]
"""
Proxy server to use for HTTP requests.
"""
https: Optional[str]
"""
Proxy server to use for HTTPS requests.
"""
no: str
"""
Comma-separated list of hosts, IP addresses, or IP ranges in CIDR format which
should not use the proxy.
Empty string means no hosts should be excluded from the proxy.
"""
@attr.s(slots=True, frozen=True, auto_attribs=True)
class ProxyConfig:
"""
Synapse configuration for HTTP proxy settings.
"""
http_proxy: Optional[str]
"""
Proxy server to use for HTTP requests.
"""
https_proxy: Optional[str]
"""
Proxy server to use for HTTPS requests.
"""
no_proxy_hosts: Optional[List[str]]
"""
List of hosts, IP addresses, or IP ranges in CIDR format which should not use the
proxy. Synapse will directly connect to these hosts.
"""
def get_proxies_dictionary(self) -> ProxyConfigDictionary:
"""
Returns a dictionary of proxy settings suitable for interacting with
`urllib.request` API's (e.g. `urllib.request.proxy_bypass_environment`)
The keys are `"http"`, `"https"`, and `"no"`.
"""
return ProxyConfigDictionary(
http=self.http_proxy,
https=self.https_proxy,
no=",".join(self.no_proxy_hosts) if self.no_proxy_hosts else "",
)
def parse_proxy_config(config: JsonDict) -> ProxyConfig:
"""
Figure out forward proxy config for outgoing HTTP requests.
Prefer values from the given config over the environment variables (`http_proxy`,
`https_proxy`, `no_proxy`, not case-sensitive).
Args:
config: The top-level homeserver configuration dictionary.
"""
proxies_from_env = getproxies_environment()
http_proxy = config.get("http_proxy", proxies_from_env.get("http"))
if http_proxy is not None and not isinstance(http_proxy, str):
raise ConfigError("'http_proxy' must be a string", ("http_proxy",))
https_proxy = config.get("https_proxy", proxies_from_env.get("https"))
if https_proxy is not None and not isinstance(https_proxy, str):
raise ConfigError("'https_proxy' must be a string", ("https_proxy",))
# List of hosts which should not use the proxy. Synapse will directly connect to
# these hosts.
no_proxy_hosts = config.get("no_proxy_hosts")
# The `no_proxy` environment variable should be a comma-separated list of hosts,
# IP addresses, or IP ranges in CIDR format
no_proxy_from_env = proxies_from_env.get("no")
if no_proxy_hosts is None and no_proxy_from_env is not None:
no_proxy_hosts = no_proxy_from_env.split(",")
if no_proxy_hosts is not None and not is_str_list(no_proxy_hosts, allow_empty=True):
raise ConfigError(
"'no_proxy_hosts' must be a list of strings", ("no_proxy_hosts",)
)
return ProxyConfig(
http_proxy=http_proxy,
https_proxy=https_proxy,
no_proxy_hosts=no_proxy_hosts,
)
class ServerConfig(Config):
section = "server"
def read_config(self, config: JsonDict, **kwargs: Any) -> None:
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 = bool(config.get("daemonize"))
self.print_pidfile = bool(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
# Ensure that public_baseurl ends with a trailing slash
if public_baseurl[-1] != "/":
public_baseurl += "/"
# Scrutinize user-provided config
if not isinstance(public_baseurl, str):
raise ConfigError("Must be a string", ("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"
)
self.extra_well_known_client_content = config.get(
"extra_well_known_client_content", {}
)
if not isinstance(self.extra_well_known_client_content, dict):
raise ConfigError(
"extra_well_known_content must be a dictionary of key-value pairs"
)
if "m.homeserver" in self.extra_well_known_client_content:
raise ConfigError(
"m.homeserver is not supported in extra_well_known_content, "
"use public_baseurl in base config instead."
)
if "m.identity_server" in self.extra_well_known_client_content:
raise ConfigError(
"m.identity_server is not supported in extra_well_known_content, "
"use default_identity_server in base config instead."
)
# Whether to enable user presence.
presence_config = config.get("presence") or {}
presence_enabled = presence_config.get("enabled")
if presence_enabled is None:
presence_enabled = config.get("use_presence", True)
# Whether presence is enabled *at all*.
self.presence_enabled = bool(presence_enabled)
# Whether to internally track presence, requires that presence is enabled,
self.track_presence = self.presence_enabled and presence_enabled != "untracked"
# Determines if presence results for offline users are included on initial/full sync
self.presence_include_offline_users_on_sync = presence_config.get(
"include_offline_users_on_sync", False
)
# 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 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_appservice_trial_days = config.get("mau_appservice_trial_days", {})
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 locally forgotten rooms before purging them from the DB.
forgotten_room_retention_period = config.get(
"forgotten_room_retention_period", None
)
if forgotten_room_retention_period is not None:
self.forgotten_room_retention_period: Optional[int] = self.parse_duration(
forgotten_room_retention_period
)
else:
self.forgotten_room_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_blocklist = config.get(
"ip_range_blacklist", DEFAULT_IP_RANGE_BLOCKLIST
)
# Attempt to create an IPSet from the given ranges
# Always block 0.0.0.0, ::
self.ip_range_blocklist = generate_ip_set(
ip_range_blocklist, ["0.0.0.0", "::"], config_path=("ip_range_blacklist",)
)
self.ip_range_allowlist = 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 block 0.0.0.0, ::
self.federation_ip_range_blocklist = 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_allowlist = 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_blocklist = self.ip_range_blocklist
self.federation_ip_range_allowlist = self.ip_range_allowlist
# (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")
listeners = config.get("listeners", [])
if not isinstance(listeners, list):
raise ConfigError("Expected a list", ("listeners",))
self.listeners = [parse_listener_def(i, x) for i, x in enumerate(listeners)]
# no_tls is not really supported anymore, but let's grandfather it in here.
if config.get("no_tls", False):
l2 = []
for listener in self.listeners:
if isinstance(listener, TCPListenerConfig) and listener.tls:
# Use isinstance() as the assertion this *has* a listener.port
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(
TCPListenerConfig(
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(
TCPListenerConfig(
port=unsecure_port,
bind_addresses=[bind_host],
tls=False,
type="http",
http_options=http_options,
)
)
manhole = config.get("manhole")
if manhole:
self.listeners.append(
TCPListenerConfig(
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(
TCPListenerConfig(
port=metrics_port,
bind_addresses=[config.get("metrics_bind_host", "127.0.0.1")],
type="http",
http_options=HttpListenerConfig(
resources=[HttpResourceConfig(names=["metrics"])]
),
)
)
# Figure out forward proxy config for outgoing HTTP requests.
#
# Prefer values from the file config over the environment variables
self.proxy_config = parse_proxy_config(config)
logger.debug(
"Using proxy settings: http_proxy=%s, https_proxy=%s, no_proxy=%s",
self.proxy_config.http_proxy,
self.proxy_config.https_proxy,
self.proxy_config.no_proxy_hosts,
)
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 []
)
delete_stale_devices_after: Optional[str] = (
config.get("delete_stale_devices_after") or None
)
if delete_stale_devices_after is not None:
self.delete_stale_devices_after: Optional[int] = self.parse_duration(
delete_stale_devices_after
)
else:
self.delete_stale_devices_after = None
# The maximum allowed delay duration for delayed events (MSC4140).
max_event_delay_duration = config.get("max_event_delay_duration")
if max_event_delay_duration is not None:
self.max_event_delay_ms: Optional[int] = self.parse_duration(
max_event_delay_duration
)
if self.max_event_delay_ms <= 0:
raise ConfigError("max_event_delay_duration must be a positive value")
else:
self.max_event_delay_ms = None
def has_tls_listener(self) -> bool:
return any(listener.is_tls() for listener in self.listeners)
def generate_config_section(
self,
config_dir_path: str,
data_dir_path: str,
server_name: str,
open_private_ports: bool,
listeners: Optional[List[dict]],
**kwargs: Any,
) -> str:
_, 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")
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:
unsecure_http_bindings = ""
if not secure_listeners:
secure_http_bindings = ""
return """\
server_name: "%(server_name)s"
pid_file: %(pid_file)s
listeners:
%(secure_http_bindings)s
%(unsecure_http_bindings)s
""" % 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(num: int, listener: Any) -> ListenerConfig:
"""parse a listener config from the config file"""
if not isinstance(listener, dict):
raise ConfigError("Expected a dictionary", ("listeners", str(num)))
listener_type = listener["type"]
# Raise a helpful error if direct TCP replication is still configured.
if listener_type == "replication":
raise ConfigError(DIRECT_TCP_ERROR, ("listeners", str(num), "type"))
port = listener.get("port")
socket_path = listener.get("path")
# Either a port or a path should be declared at a minimum. Using both would be bad.
if port is not None and not isinstance(port, int):
raise ConfigError("Listener configuration is lacking a valid 'port' option")
if socket_path is not None and not isinstance(socket_path, str):
raise ConfigError("Listener configuration is lacking a valid 'path' option")
if port and socket_path:
raise ConfigError(
"Can not have both a UNIX socket and an IP/port declared for the same "
"resource!"
)
if port is None and socket_path is None:
raise ConfigError(
"Must have either a UNIX socket or an IP/port declared for a given "
"resource!"
)
tls = listener.get("tls", False)
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
# For a unix socket, default x_forwarded to True, as this is the only way of
# getting a client IP.
# Note: a reverse proxy is required anyway, as there is no way of exposing a
# unix socket to the internet.
http_config = HttpListenerConfig(
x_forwarded=listener.get("x_forwarded", (True if socket_path else False)),
resources=resources,
additional_resources=listener.get("additional_resources", {}),
tag=listener.get("tag"),
request_id_header=listener.get("request_id_header"),
)
if socket_path:
# TODO: Add in path validation, like if the directory exists and is writable?
# Set a default for the permission, in case it's left out
socket_mode = listener.get("mode", 0o666)
return UnixListenerConfig(socket_path, socket_mode, listener_type, http_config)
else:
assert port is not None
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)
return TCPListenerConfig(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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