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{ config, pkgs, lib, ... }: | ||
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with lib; | ||
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let | ||
registrationFile = "${dataDir}/meta-registration.yaml"; | ||
cfg = config.services.mautrix-meta; | ||
dataDir = cfg.dataDir; | ||
pkg = cfg.package; | ||
settingsFormat = pkgs.formats.yaml {}; | ||
settingsFile = "${dataDir}/config.yaml"; | ||
settingsFileUnsubstituted = | ||
settingsFormat.generate "mautrix-meta-config.yaml" cfg.settings; | ||
in { | ||
options = { | ||
services.mautrix-meta = { | ||
enable = mkEnableOption (mdDoc "Mautrix-Meta, a Matrix <-> Facebook and Matrix <-> Instagram hybrid puppeting/relaybot bridge"); | ||
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package = mkPackageOption pkgs "mautrix-meta" { }; | ||
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dataDir = mkOption { | ||
type = types.path; | ||
default = "/var/lib/mautrix-meta"; | ||
description = mdDoc '' | ||
Path to the directory with database, registration, and other data for the bridge service. | ||
''; | ||
}; | ||
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settings = mkOption rec { | ||
apply = recursiveUpdate default; | ||
inherit (settingsFormat) type; | ||
default = { | ||
homeserver = { | ||
software = "standard"; | ||
}; | ||
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appservice = rec { | ||
database = { | ||
type = "sqlite3-fk-wal"; | ||
uri = "file:${dataDir}/mautrix-meta.db?_txlock=immediate"; | ||
}; | ||
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hostname = "0.0.0.0"; | ||
port = 29319; | ||
address = "http://localhost:${toString cfg.settings.appservice.port}"; | ||
}; | ||
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meta = { | ||
mode = "instagram"; | ||
}; | ||
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logging = { | ||
min_level = "info"; | ||
writers = singleton { | ||
type = "stdout"; | ||
format = "pretty-colored"; | ||
time_format = " "; | ||
}; | ||
}; | ||
}; | ||
defaultText = '' | ||
{ | ||
homeserver = { | ||
software = "standard"; | ||
}; | ||
appservice = rec { | ||
database = { | ||
type = "sqlite3-fk-wal"; | ||
uri = "''${config.services.mautrix-meta.dataDir}/mautrix-meta.db?_txlock=immediate"; | ||
}; | ||
hostname = "0.0.0.0"; | ||
port = 29319; | ||
address = "http://localhost:''${toString config.services.mautrix-mega.appservice.port}"; | ||
}; | ||
meta = { | ||
mode = "instagram"; | ||
}; | ||
logging = { | ||
min_level = "info"; | ||
writers = singleton { | ||
type = "stdout"; | ||
format = "pretty-colored"; | ||
time_format = " "; | ||
}; | ||
}; | ||
}; | ||
''; | ||
description = lib.mdDoc '' | ||
{file}`config.yaml` configuration as a Nix attribute set. | ||
Configuration options should match those described in | ||
[example-config.yaml](https://github.com/mautrix/meta/blob/main/example-config.yaml). | ||
Secret tokens should be specified using {option}`environmentFile` | ||
instead | ||
''; | ||
}; | ||
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environmentFile = mkOption { | ||
type = types.nullOr types.path; | ||
default = null; | ||
description = mdDoc '' | ||
File containing environment variables to substitute when copying the configuration | ||
out of Nix store to the `services.mautrix-meta.dataDir`. | ||
Can be used for storing the secrets without making them available in the Nix store. | ||
For example, you can set `services.mautrix-meta.settings.appservice.as_token = "$MAUTRIX_META_APPSERVICE_AS_TOKEN"` | ||
and then specify `MAUTRIX_META_APPSERVICE_AS_TOKEN="{token}"` in the environment file. | ||
This value will get substituted into the configuration file as as token. | ||
''; | ||
}; | ||
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serviceDependencies = mkOption { | ||
type = with types; listOf str; | ||
default = optional config.services.matrix-synapse.enable config.services.matrix-synapse.serviceUnit; | ||
defaultText = literalExpression '' | ||
optional config.services.matrix-synapse.enable config.services.matrix-synapse.serviceUnit | ||
''; | ||
description = lib.mdDoc '' | ||
List of Systemd services to require and wait for when starting the application service. | ||
''; | ||
}; | ||
}; | ||
}; | ||
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config = mkIf cfg.enable { | ||
systemd.services.mautrix-meta = { | ||
description = "Mautrix-Meta, a Matrix <-> Facebook or Matrix <-> Instagram hybrid puppeting/relaybot bridge"; | ||
wantedBy = [ "multi-user.target" ]; | ||
wants = [ "network-online.target" ] ++ cfg.serviceDependencies; | ||
after = [ "network-online.target" ] ++ cfg.serviceDependencies; | ||
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environment.HOME = dataDir; | ||
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preStart = '' | ||
# substitute the settings file by environment variables | ||
# in this case read from EnvironmentFile | ||
test -f '${settingsFile}' && rm -f '${settingsFile}' | ||
old_umask=$(umask) | ||
umask 0177 | ||
${pkgs.envsubst}/bin/envsubst \ | ||
-o '${settingsFile}' \ | ||
-i '${settingsFileUnsubstituted}' | ||
umask $old_umask | ||
# generate the appservice's registration file if absent | ||
if [ ! -f '${registrationFile}' ]; then | ||
${pkg}/bin/mautrix-meta \ | ||
--generate-registration \ | ||
--config='${settingsFile}' \ | ||
--registration='${registrationFile}' | ||
fi | ||
umask 0177 | ||
${pkgs.yq}/bin/yq -s '.[0].appservice.as_token = .[1].as_token | ||
| .[0].appservice.hs_token = .[1].hs_token | ||
| .[0]' '${settingsFile}' '${registrationFile}' \ | ||
> '${settingsFile}.tmp' | ||
mv '${settingsFile}.tmp' '${settingsFile}' | ||
umask $old_umask | ||
''; | ||
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serviceConfig = { | ||
Type = "simple"; | ||
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LockPersonality = true; | ||
MemoryDenyWriteExecute = true; | ||
NoNewPrivileges = true; | ||
PrivateDevices = true; | ||
PrivateTmp = true; | ||
ProtectClock = true; | ||
ProtectControlGroups = true; | ||
ProtectHome = true; | ||
ProtectHostname = true; | ||
ProtectKernelLogs = true; | ||
ProtectKernelModules = true; | ||
ProtectKernelTunables = true; | ||
ProtectSystem = "strict"; | ||
Restart = "on-failure"; | ||
RestartSec = "30s"; | ||
RestrictRealtime = true; | ||
RestrictSUIDSGID = true; | ||
SystemCallArchitectures = "native"; | ||
SystemCallErrorNumber = "EPERM"; | ||
SystemCallFilter = ["@system-service"]; | ||
UMask = 0027; | ||
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DynamicUser = true; | ||
WorkingDirectory = dataDir; | ||
ReadWritePaths = dataDir; | ||
StateDirectory = baseNameOf dataDir; | ||
EnvironmentFile = cfg.environmentFile; | ||
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ExecStart = '' | ||
${pkg}/bin/mautrix-meta \ | ||
--config='${settingsFile}' | ||
''; | ||
}; | ||
restartTriggers = [settingsFileUnsubstituted]; | ||
}; | ||
}; | ||
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meta.maintainers = with maintainers; [ rutherther ]; | ||
} |