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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.matrix-synapse;
logConfigFile = pkgs.writeText "log_config.yaml" cfg.logConfig;
mkResource = r: ''{names: ${builtins.toJSON r.names}, compress: ${fromBool r.compress}}'';
mkListener = l: ''{port: ${toString l.port}, bind_address: "${l.bind_address}", type: ${l.type}, tls: ${fromBool l.tls}, x_forwarded: ${fromBool l.x_forwarded}, resources: [${concatStringsSep "," (map mkResource l.resources)}]}'';
fromBool = x: if x then "true" else "false";
configFile = pkgs.writeText "homeserver.yaml" ''
${optionalString (cfg.tls_certificate_path != null) ''
tls_certificate_path: "${cfg.tls_certificate_path}"
''}
${optionalString (cfg.tls_private_key_path != null) ''
tls_private_key_path: "${cfg.tls_private_key_path}"
''}
${optionalString (cfg.tls_dh_params_path != null) ''
tls_dh_params_path: "${cfg.tls_dh_params_path}"
''}
no_tls: ${fromBool cfg.no_tls}
${optionalString (cfg.bind_port != null) ''
bind_port: ${toString cfg.bind_port}
''}
${optionalString (cfg.unsecure_port != null) ''
unsecure_port: ${toString cfg.unsecure_port}
''}
${optionalString (cfg.bind_host != null) ''
bind_host: "${cfg.bind_host}"
''}
server_name: "${cfg.server_name}"
pid_file: "/var/run/matrix-synapse.pid"
web_client: ${fromBool cfg.web_client}
${optionalString (cfg.public_baseurl != null) ''
public_baseurl: "${cfg.public_baseurl}"
''}
listeners: [${concatStringsSep "," (map mkListener cfg.listeners)}]
database: {
name: "${cfg.database_type}",
args: {
${concatStringsSep ",\n " (
mapAttrsToList (n: v: "\"${n}\": ${v}") cfg.database_args
)}
}
}
event_cache_size: "${cfg.event_cache_size}"
verbose: ${cfg.verbose}
log_file: "/var/log/matrix-synapse/homeserver.log"
log_config: "${logConfigFile}"
rc_messages_per_second: ${cfg.rc_messages_per_second}
rc_message_burst_count: ${cfg.rc_message_burst_count}
federation_rc_window_size: ${cfg.federation_rc_window_size}
federation_rc_sleep_limit: ${cfg.federation_rc_sleep_limit}
federation_rc_sleep_delay: ${cfg.federation_rc_sleep_delay}
federation_rc_reject_limit: ${cfg.federation_rc_reject_limit}
federation_rc_concurrent: ${cfg.federation_rc_concurrent}
media_store_path: "/var/lib/matrix-synapse/media"
uploads_path: "/var/lib/matrix-synapse/uploads"
max_upload_size: "${cfg.max_upload_size}"
max_image_pixels: "${cfg.max_image_pixels}"
dynamic_thumbnails: ${fromBool cfg.dynamic_thumbnails}
url_preview_enabled: ${fromBool cfg.url_preview_enabled}
${optionalString (cfg.url_preview_enabled == true) ''
url_preview_ip_range_blacklist: ${builtins.toJSON cfg.url_preview_ip_range_blacklist}
url_preview_ip_range_whitelist: ${builtins.toJSON cfg.url_preview_ip_range_whitelist}
url_preview_url_blacklist: ${builtins.toJSON cfg.url_preview_url_blacklist}
''}
recaptcha_private_key: "${cfg.recaptcha_private_key}"
recaptcha_public_key: "${cfg.recaptcha_public_key}"
enable_registration_captcha: ${fromBool cfg.enable_registration_captcha}
turn_uris: ${builtins.toJSON cfg.turn_uris}
turn_shared_secret: "${cfg.turn_shared_secret}"
enable_registration: ${fromBool cfg.enable_registration}
${optionalString (cfg.registration_shared_secret != null) ''
registration_shared_secret: "${cfg.registration_shared_secret}"
''}
recaptcha_siteverify_api: "https://www.google.com/recaptcha/api/siteverify"
turn_user_lifetime: "${cfg.turn_user_lifetime}"
user_creation_max_duration: ${cfg.user_creation_max_duration}
bcrypt_rounds: ${cfg.bcrypt_rounds}
allow_guest_access: ${fromBool cfg.allow_guest_access}
trusted_third_party_id_servers: ${builtins.toJSON cfg.trusted_third_party_id_servers}
room_invite_state_types: ${builtins.toJSON cfg.room_invite_state_types}
${optionalString (cfg.macaroon_secret_key != null) ''
macaroon_secret_key: "${cfg.macaroon_secret_key}"
''}
expire_access_token: ${fromBool cfg.expire_access_token}
enable_metrics: ${fromBool cfg.enable_metrics}
report_stats: ${fromBool cfg.report_stats}
signing_key_path: "/var/lib/matrix-synapse/homeserver.signing.key"
key_refresh_interval: "${cfg.key_refresh_interval}"
perspectives:
servers: {
${concatStringsSep "},\n" (mapAttrsToList (n: v: ''
"${n}": {
"verify_keys": {
${concatStringsSep "},\n" (mapAttrsToList (n: v: ''
"${n}": {
"key": "${v}"
}'') v)}
}
'') cfg.servers)}
}
}
app_service_config_files: ${builtins.toJSON cfg.app_service_config_files}
${cfg.extraConfig}
'';
in {
options = {
services.matrix-synapse = {
enable = mkEnableOption "matrix.org synapse";
package = mkOption {
type = types.package;
default = pkgs.matrix-synapse;
defaultText = "pkgs.matrix-synapse";
description = ''
Overridable attribute of the matrix synapse server package to use.
'';
};
no_tls = mkOption {
type = types.bool;
default = false;
description = ''
Don't bind to the https port
'';
};
bind_port = mkOption {
type = types.nullOr types.int;
default = null;
example = 8448;
description = ''
DEPRECATED: Use listeners instead.
The port to listen for HTTPS requests on.
For when matrix traffic is sent directly to synapse.
'';
};
unsecure_port = mkOption {
type = types.nullOr types.int;
default = null;
example = 8008;
description = ''
DEPRECATED: Use listeners instead.
The port to listen for HTTP requests on.
For when matrix traffic passes through loadbalancer that unwraps TLS.
'';
};
bind_host = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
DEPRECATED: Use listeners instead.
Local interface to listen on.
The empty string will cause synapse to listen on all interfaces.
'';
};
tls_certificate_path = mkOption {
type = types.nullOr types.str;
default = null;
example = "/var/lib/matrix-synapse/homeserver.tls.crt";
description = ''
PEM encoded X509 certificate for TLS.
You can replace the self-signed certificate that synapse
autogenerates on launch with your own SSL certificate + key pair
if you like. Any required intermediary certificates can be
appended after the primary certificate in hierarchical order.
'';
};
tls_private_key_path = mkOption {
type = types.nullOr types.str;
default = null;
example = "/var/lib/matrix-synapse/homeserver.tls.key";
description = ''
PEM encoded private key for TLS. Specify null if synapse is not
speaking TLS directly.
'';
};
tls_dh_params_path = mkOption {
type = types.nullOr types.str;
default = null;
example = "/var/lib/matrix-synapse/homeserver.tls.dh";
description = ''
PEM dh parameters for ephemeral keys
'';
};
server_name = mkOption {
type = types.str;
example = "example.com";
description = ''
The domain name of the server, with optional explicit port.
This is used by remote servers to connect to this server,
e.g. matrix.org, localhost:8080, etc.
This is also the last part of your UserID.
'';
};
web_client = mkOption {
type = types.bool;
default = false;
description = ''
Whether to serve a web client from the HTTP/HTTPS root resource.
'';
};
public_baseurl = mkOption {
type = types.nullOr types.str;
default = null;
example = "https://example.com:8448/";
description = ''
The public-facing base URL for the client API (not including _matrix/...)
'';
};
listeners = mkOption {
type = types.listOf (types.submodule {
options = {
port = mkOption {
type = types.int;
example = 8448;
description = ''
The port to listen for HTTP(S) requests on.
'';
};
bind_address = mkOption {
type = types.str;
default = "";
example = "203.0.113.42";
description = ''
Local interface to listen on.
The empty string will cause synapse to listen on all interfaces.
'';
};
type = mkOption {
type = types.str;
default = "http";
description = ''
Type of listener.
'';
};
tls = mkOption {
type = types.bool;
default = true;
description = ''
Whether to listen for HTTPS connections rather than HTTP.
'';
};
x_forwarded = mkOption {
type = types.bool;
default = false;
description = ''
Use the X-Forwarded-For (XFF) header as the client IP and not the
actual client IP.
'';
};
resources = mkOption {
type = types.listOf (types.submodule {
options = {
names = mkOption {
type = types.listOf types.str;
description = ''
List of resources to host on this listener.
'';
example = ["client" "webclient" "federation"];
};
compress = mkOption {
type = types.bool;
description = ''
Should synapse compress HTTP responses to clients that support it?
This should be disabled if running synapse behind a load balancer
that can do automatic compression.
'';
};
};
});
description = ''
List of HTTP resources to serve on this listener.
'';
};
};
});
default = [{
port = 8448;
bind_address = "";
type = "http";
tls = true;
x_forwarded = false;
resources = [
{ names = ["client" "webclient"]; compress = true; }
{ names = ["federation"]; compress = false; }
];
}];
description = ''
List of ports that Synapse should listen on, their purpose and their configuration.
'';
};
verbose = mkOption {
type = types.str;
default = "0";
description = "Logging verbosity level.";
};
rc_messages_per_second = mkOption {
type = types.str;
default = "0.2";
description = "Number of messages a client can send per second";
};
rc_message_burst_count = mkOption {
type = types.str;
default = "10.0";
description = "Number of message a client can send before being throttled";
};
federation_rc_window_size = mkOption {
type = types.str;
default = "1000";
description = "The federation window size in milliseconds";
};
federation_rc_sleep_limit = mkOption {
type = types.str;
default = "10";
description = ''
The number of federation requests from a single server in a window
before the server will delay processing the request.
'';
};
federation_rc_sleep_delay = mkOption {
type = types.str;
default = "500";
description = ''
The duration in milliseconds to delay processing events from
remote servers by if they go over the sleep limit.
'';
};
federation_rc_reject_limit = mkOption {
type = types.str;
default = "50";
description = ''
The maximum number of concurrent federation requests allowed
from a single server
'';
};
federation_rc_concurrent = mkOption {
type = types.str;
default = "3";
description = "The number of federation requests to concurrently process from a single server";
};
database_type = mkOption {
type = types.enum [ "sqlite3" "psycopg2" ];
default = "sqlite3";
description = ''
The database engine name. Can be sqlite or psycopg2.
'';
};
database_args = mkOption {
type = types.attrs;
default = {
database = "/var/lib/matrix-synapse/homeserver.db";
};
description = ''
Arguments to pass to the engine.
'';
};
event_cache_size = mkOption {
type = types.str;
default = "10K";
description = "Number of events to cache in memory.";
};
url_preview_enabled = mkOption {
type = types.bool;
default = false;
description = ''
Is the preview URL API enabled? If enabled, you *must* specify an
explicit url_preview_ip_range_blacklist of IPs that the spider is
denied from accessing.
'';
};
url_preview_ip_range_blacklist = mkOption {
type = types.listOf types.str;
default = [];
description = ''
List of IP address CIDR ranges that the URL preview spider is denied
from accessing.
'';
};
url_preview_ip_range_whitelist = mkOption {
type = types.listOf types.str;
default = [];
description = ''
List of IP address CIDR ranges that the URL preview spider is allowed
to access even if they are specified in
url_preview_ip_range_blacklist.
'';
};
url_preview_url_blacklist = mkOption {
type = types.listOf types.str;
default = [
"127.0.0.0/8"
"10.0.0.0/8"
"172.16.0.0/12"
"192.168.0.0/16"
"100.64.0.0/10"
"169.254.0.0/16"
];
description = ''
Optional list of URL matches that the URL preview spider is
denied from accessing.
'';
};
recaptcha_private_key = mkOption {
type = types.str;
default = "";
description = ''
This Home Server's ReCAPTCHA private key.
'';
};
recaptcha_public_key = mkOption {
type = types.str;
default = "";
description = ''
This Home Server's ReCAPTCHA public key.
'';
};
enable_registration_captcha = mkOption {
type = types.bool;
default = false;
description = ''
Enables ReCaptcha checks when registering, preventing signup
unless a captcha is answered. Requires a valid ReCaptcha
public/private key.
'';
};
turn_uris = mkOption {
type = types.listOf types.str;
default = [];
description = ''
The public URIs of the TURN server to give to clients
'';
};
turn_shared_secret = mkOption {
type = types.str;
default = "";
description = ''
The shared secret used to compute passwords for the TURN server
'';
};
turn_user_lifetime = mkOption {
type = types.str;
default = "1h";
description = "How long generated TURN credentials last";
};
enable_registration = mkOption {
type = types.bool;
default = false;
description = ''
Enable registration for new users.
'';
};
registration_shared_secret = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
If set, allows registration by anyone who also has the shared
secret, even if registration is otherwise disabled.
'';
};
enable_metrics = mkOption {
type = types.bool;
default = false;
description = ''
Enable collection and rendering of performance metrics
'';
};
report_stats = mkOption {
type = types.bool;
default = false;
description = ''
'';
};
servers = mkOption {
type = types.attrsOf (types.attrsOf types.str);
default = {
"matrix.org" = {
"ed25519:auto" = "Noi6WqcDj0QmPxCNQqgezwTlBKrfqehY1u2FyWP9uYw";
};
};
description = ''
The trusted servers to download signing keys from.
'';
};
max_upload_size = mkOption {
type = types.str;
default = "10M";
description = "The largest allowed upload size in bytes";
};
max_image_pixels = mkOption {
type = types.str;
default = "32M";
description = "Maximum number of pixels that will be thumbnailed";
};
dynamic_thumbnails = mkOption {
type = types.bool;
default = false;
description = ''
Whether to generate new thumbnails on the fly to precisely match
the resolution requested by the client. If true then whenever
a new resolution is requested by the client the server will
generate a new thumbnail. If false the server will pick a thumbnail
from a precalculated list.
'';
};
user_creation_max_duration = mkOption {
type = types.str;
default = "1209600000";
description = ''
Sets the expiry for the short term user creation in
milliseconds. The default value is two weeks.
'';
};
bcrypt_rounds = mkOption {
type = types.str;
default = "12";
description = ''
Set the number of bcrypt rounds used to generate password hash.
Larger numbers increase the work factor needed to generate the hash.
'';
};
allow_guest_access = mkOption {
type = types.bool;
default = false;
description = ''
Allows users to register as guests without a password/email/etc, and
participate in rooms hosted on this server which have been made
accessible to anonymous users.
'';
};
trusted_third_party_id_servers = mkOption {
type = types.listOf types.str;
default = ["matrix.org"];
description = ''
The list of identity servers trusted to verify third party identifiers by this server.
'';
};
room_invite_state_types = mkOption {
type = types.listOf types.str;
default = ["m.room.join_rules" "m.room.canonical_alias" "m.room.avatar" "m.room.name"];
description = ''
A list of event types that will be included in the room_invite_state
'';
};
macaroon_secret_key = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
Secret key for authentication tokens
'';
};
expire_access_token = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable access token expiration.
'';
};
key_refresh_interval = mkOption {
type = types.str;
default = "1d";
description = ''
How long key response published by this server is valid for.
Used to set the valid_until_ts in /key/v2 APIs.
Determines how quickly servers will query to check which keys
are still valid.
'';
};
app_service_config_files = mkOption {
type = types.listOf types.path;
default = [ ];
description = ''
A list of application service config file to use
'';
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = ''
Extra config options for matrix-synapse.
'';
};
logConfig = mkOption {
type = types.lines;
default = readFile ./matrix-synapse-log_config.yaml;
description = ''
A yaml python logging config file
'';
};
};
};
config = mkIf cfg.enable {
users.extraUsers = [
{ name = "matrix-synapse";
group = "matrix-synapse";
home = "/var/lib/matrix-synapse";
createHome = true;
shell = "${pkgs.bash}/bin/bash";
uid = config.ids.uids.matrix-synapse;
} ];
users.extraGroups = [
{ name = "matrix-synapse";
gid = config.ids.gids.matrix-synapse;
} ];
systemd.services.matrix-synapse = {
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
preStart = ''
${cfg.package}/bin/homeserver \
--config-path ${configFile} \
--keys-directory /var/lib/matrix-synapse \
--generate-keys
'';
serviceConfig = {
Type = "simple";
User = "matrix-synapse";
Group = "matrix-synapse";
WorkingDirectory = "/var/lib/matrix-synapse";
PermissionsStartOnly = true;
ExecStart = "${cfg.package}/bin/homeserver --config-path ${configFile} --keys-directory /var/lib/matrix-synapse";
};
};
};
}