tlaternet-server/configuration/services/conduit.nix

255 lines
7.7 KiB
Nix
Raw Normal View History

{
2023-02-23 09:08:56 +00:00
pkgs,
config,
lib,
...
}: let
inherit (lib.strings) concatMapStringsSep;
2022-10-21 20:48:14 +01:00
cfg = config.services.matrix-conduit;
domain = "matrix.${config.services.nginx.domain}";
2022-10-29 00:13:44 +01:00
turn-realm = "turn.${config.services.nginx.domain}";
2022-10-21 20:48:14 +01:00
in {
services.matrix-conduit = {
enable = true;
settings.global = {
address = "127.0.0.1";
server_name = domain;
database_backend = "rocksdb";
2022-10-29 00:13:44 +01:00
turn_uris = let
address = "${config.services.coturn.realm}:${toString config.services.coturn.listening-port}";
tls-address = "${config.services.coturn.realm}:${toString config.services.coturn.tls-listening-port}";
in [
"turn:${address}?transport=udp"
"turn:${address}?transport=tcp"
"turns:${tls-address}?transport=udp"
"turns:${tls-address}?transport=tcp"
2022-10-29 00:13:44 +01:00
];
2022-10-21 20:48:14 +01:00
};
};
2023-02-23 09:08:56 +00:00
systemd.services.heisenbridge = let
replaceSecretBin = "${pkgs.replace-secret}/bin/replace-secret";
registrationFile = builtins.toFile "heisenbridge-registration.yaml" (builtins.toJSON {
id = "heisenbridge";
url = "http://127.0.0.1:9898";
as_token = "@AS_TOKEN@";
hs_token = "@HS_TOKEN@";
rate_limited = false;
sender_localpart = "heisenbridge";
namespaces = {
users = [
{
regex = "@irc_.*";
exclusive = true;
}
{
regex = "@heisenbridge:.*";
exclusive = true;
}
];
aliases = [];
rooms = [];
};
});
# TODO(tlater): Starting with systemd 253 it will become possible
# to do the credential setup as part of ExecStartPre/preStart
# instead.
#
# This will also make it possible to actually set caps on the
# heisenbridge process using systemd, so that we can run the
# identd process.
execScript = pkgs.writeShellScript "heisenbridge" ''
cp ${registrationFile} "$RUNTIME_DIRECTORY/heisenbridge-registration.yaml"
chmod 600 $RUNTIME_DIRECTORY/heisenbridge-registration.yaml
${replaceSecretBin} '@AS_TOKEN@' "$CREDENTIALS_DIRECTORY/heisenbridge_as-token" "$RUNTIME_DIRECTORY/heisenbridge-registration.yaml"
${replaceSecretBin} '@HS_TOKEN@' "$CREDENTIALS_DIRECTORY/heisenbridge_hs-token" "$RUNTIME_DIRECTORY/heisenbridge-registration.yaml"
chmod 400 $RUNTIME_DIRECTORY/heisenbridge-registration.yaml
${pkgs.heisenbridge}/bin/heisenbridge \
--config $RUNTIME_DIRECTORY/heisenbridge-registration.yaml \
--owner @tlater:matrix.tlater.net \
'http://localhost:${toString cfg.settings.global.port}'
'';
in {
description = "Matrix<->IRC bridge";
wantedBy = ["multi-user.target"];
after = ["conduit.service"];
serviceConfig = {
Type = "simple";
LoadCredential = "heisenbridge:/run/secrets/heisenbridge";
ExecStart = execScript;
DynamicUser = true;
RuntimeDirectory = "heisenbridge";
RuntimeDirectoryMode = "0700";
RestrictNamespaces = true;
PrivateUsers = true;
ProtectHostname = true;
ProtectClock = true;
ProtectKernelTunables = true;
ProtectKernelModules = true;
ProtectKernelLogs = true;
ProtectControlGroups = true;
RestrictAddressFamilies = ["AF_INET AF_INET6"];
LockPersonality = true;
RestrictRealtime = true;
ProtectProc = "invisible";
ProcSubset = "pid";
UMask = 0077;
# For the identd port
# CapabilityBoundingSet = ["CAP_NET_BIND_SERVICE"];
# AmbientCapabilities = ["CAP_NET_BIND_SERVICE"];
};
};
2022-10-29 00:13:44 +01:00
# Pass in the TURN secret via EnvironmentFile, not supported by
# upstream module currently.
#
# See also https://gitlab.com/famedly/conduit/-/issues/314
systemd.services.conduit.serviceConfig.EnvironmentFile = config.sops.secrets."turn/env".path;
services.coturn = {
enable = true;
no-cli = true;
2022-10-29 00:13:44 +01:00
use-auth-secret = true;
static-auth-secret-file = config.sops.secrets."turn/secret".path;
realm = turn-realm;
relay-ips = [
2024-03-11 20:56:41 +00:00
"116.202.158.55"
2022-10-29 00:13:44 +01:00
];
# SSL config
#
# TODO(tlater): Switch to letsencrypt once google fix:
# https://github.com/vector-im/element-android/issues/1533
pkey = config.sops.secrets."turn/ssl-key".path;
cert = config.sops.secrets."turn/ssl-cert".path;
2022-10-29 00:13:44 +01:00
# Based on suggestions from
# https://github.com/matrix-org/synapse/blob/develop/docs/turn-howto.md
# and
# https://www.foxypossibilities.com/2018/05/19/setting-up-a-turn-sever-for-matrix-on-nixos/
no-tcp-relay = true;
secure-stun = true;
extraConfig = ''
# Deny various local IP ranges, see
# https://www.rtcsec.com/article/cve-2020-26262-bypass-of-coturns-access-control-protection/
no-multicast-peers
denied-peer-ip=0.0.0.0-0.255.255.255
denied-peer-ip=10.0.0.0-10.255.255.255
denied-peer-ip=100.64.0.0-100.127.255.255
denied-peer-ip=127.0.0.0-127.255.255.255
denied-peer-ip=169.254.0.0-169.254.255.255
denied-peer-ip=172.16.0.0-172.31.255.255
denied-peer-ip=192.0.0.0-192.0.0.255
denied-peer-ip=192.0.2.0-192.0.2.255
denied-peer-ip=192.88.99.0-192.88.99.255
denied-peer-ip=192.168.0.0-192.168.255.255
denied-peer-ip=198.18.0.0-198.19.255.255
denied-peer-ip=198.51.100.0-198.51.100.255
denied-peer-ip=203.0.113.0-203.0.113.255
denied-peer-ip=240.0.0.0-255.255.255.255 denied-peer-ip=::1
denied-peer-ip=64:ff9b::-64:ff9b::ffff:ffff
denied-peer-ip=::ffff:0.0.0.0-::ffff:255.255.255.255
denied-peer-ip=100::-100::ffff:ffff:ffff:ffff
denied-peer-ip=2001::-2001:1ff:ffff:ffff:ffff:ffff:ffff:ffff
denied-peer-ip=2002::-2002:ffff:ffff:ffff:ffff:ffff:ffff:ffff
denied-peer-ip=fc00::-fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
denied-peer-ip=fe80::-febf:ffff:ffff:ffff:ffff:ffff:ffff:ffff
# *Allow* any IP addresses that we explicitly set as relay IPs
${concatMapStringsSep "\n" (ip: "allowed-peer-ip=${ip}") config.services.coturn.relay-ips}
2022-10-29 00:13:44 +01:00
# Various other security settings
no-tlsv1
no-tlsv1_1
# Monitoring
prometheus
2022-10-29 00:13:44 +01:00
'';
};
2022-10-21 20:48:14 +01:00
services.nginx.virtualHosts."${domain}" = {
2024-04-16 00:08:13 +01:00
useACMEHost = "tlater.net";
2022-10-21 20:48:14 +01:00
listen = [
{
addr = "0.0.0.0";
port = 80;
}
{
addr = "[::0]";
port = 80;
}
2022-10-21 20:48:14 +01:00
{
addr = "0.0.0.0";
port = 443;
ssl = true;
}
{
addr = "[::0]";
port = 443;
ssl = true;
}
{
addr = "0.0.0.0";
port = 8448;
ssl = true;
}
{
addr = "[::0]";
port = 8448;
2022-10-21 20:48:14 +01:00
ssl = true;
}
];
forceSSL = true;
2024-04-13 03:34:53 +01:00
enableHSTS = true;
2022-10-21 20:48:14 +01:00
extraConfig = ''
merge_slashes off;
'';
2023-09-18 03:17:16 +01:00
locations = {
"/_matrix" = {
proxyPass = "http://${cfg.settings.global.address}:${toString cfg.settings.global.port}";
# Recommended by conduit
extraConfig = ''
proxy_buffering off;
'';
};
# Add Element X support
# TODO(tlater): Remove when no longer required: https://github.com/vector-im/element-x-android/issues/1085
"=/.well-known/matrix/client" = {
alias = pkgs.writeText "well-known-matrix-client" (builtins.toJSON {
"m.homeserver".base_url = "https://${domain}";
"org.matrix.msc3575.proxy".url = "https://${domain}";
});
extraConfig = ''
default_type application/json;
add_header Access-Control-Allow-Origin "*";
'';
};
2022-10-21 20:48:14 +01:00
};
};
services.backups.conduit = {
user = "root";
paths = [
"/var/lib/private/matrix-conduit/"
];
# Other services store their data in conduit, so no other services
# need to be shut down currently.
pauseServices = ["conduit.service"];
};
2022-10-21 20:48:14 +01:00
}