nixpkgs/nixos/modules/services/desktops/geoclue2.nix
2021-10-04 12:47:20 +02:00

271 lines
6.7 KiB
Nix

# GeoClue 2 daemon.
{ config, lib, pkgs, ... }:
with lib;
let
# the demo agent isn't built by default, but we need it here
package = pkgs.geoclue2.override { withDemoAgent = config.services.geoclue2.enableDemoAgent; };
cfg = config.services.geoclue2;
defaultWhitelist = [ "gnome-shell" "io.elementary.desktop.agent-geoclue2" ];
appConfigModule = types.submodule ({ name, ... }: {
options = {
desktopID = mkOption {
type = types.str;
description = "Desktop ID of the application.";
};
isAllowed = mkOption {
type = types.bool;
description = ''
Whether the application will be allowed access to location information.
'';
};
isSystem = mkOption {
type = types.bool;
description = ''
Whether the application is a system component or not.
'';
};
users = mkOption {
type = types.listOf types.str;
default = [];
description = ''
List of UIDs of all users for which this application is allowed location
info access, Defaults to an empty string to allow it for all users.
'';
};
};
config.desktopID = mkDefault name;
});
appConfigToINICompatible = _: { desktopID, isAllowed, isSystem, users, ... }: {
name = desktopID;
value = {
allowed = isAllowed;
system = isSystem;
users = concatStringsSep ";" users;
};
};
in
{
###### interface
options = {
services.geoclue2 = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable GeoClue 2 daemon, a DBus service
that provides location information for accessing.
'';
};
enableDemoAgent = mkOption {
type = types.bool;
default = true;
description = ''
Whether to use the GeoClue demo agent. This should be
overridden by desktop environments that provide their own
agent.
'';
};
enableNmea = mkOption {
type = types.bool;
default = true;
description = ''
Whether to fetch location from NMEA sources on local network.
'';
};
enable3G = mkOption {
type = types.bool;
default = true;
description = ''
Whether to enable 3G source.
'';
};
enableCDMA = mkOption {
type = types.bool;
default = true;
description = ''
Whether to enable CDMA source.
'';
};
enableModemGPS = mkOption {
type = types.bool;
default = true;
description = ''
Whether to enable Modem-GPS source.
'';
};
enableWifi = mkOption {
type = types.bool;
default = true;
description = ''
Whether to enable WiFi source.
'';
};
geoProviderUrl = mkOption {
type = types.str;
default = "https://location.services.mozilla.com/v1/geolocate?key=geoclue";
example = "https://www.googleapis.com/geolocation/v1/geolocate?key=YOUR_KEY";
description = ''
The url to the wifi GeoLocation Service.
'';
};
submitData = mkOption {
type = types.bool;
default = false;
description = ''
Whether to submit data to a GeoLocation Service.
'';
};
submissionUrl = mkOption {
type = types.str;
default = "https://location.services.mozilla.com/v1/submit?key=geoclue";
description = ''
The url to submit data to a GeoLocation Service.
'';
};
submissionNick = mkOption {
type = types.str;
default = "geoclue";
description = ''
A nickname to submit network data with.
Must be 2-32 characters long.
'';
};
appConfig = mkOption {
type = types.attrsOf appConfigModule;
default = {};
example = literalExpression ''
"com.github.app" = {
isAllowed = true;
isSystem = true;
users = [ "300" ];
};
'';
description = ''
Specify extra settings per application.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
environment.systemPackages = [ package ];
services.dbus.packages = [ package ];
systemd.packages = [ package ];
# we cannot use DynamicUser as we need the the geoclue user to exist for the
# dbus policy to work
users = {
users.geoclue = {
isSystemUser = true;
home = "/var/lib/geoclue";
group = "geoclue";
description = "Geoinformation service";
};
groups.geoclue = {};
};
systemd.services.geoclue = {
# restart geoclue service when the configuration changes
restartTriggers = [
config.environment.etc."geoclue/geoclue.conf".source
];
serviceConfig.StateDirectory = "geoclue";
};
# this needs to run as a user service, since it's associated with the
# user who is making the requests
systemd.user.services = mkIf cfg.enableDemoAgent {
geoclue-agent = {
description = "Geoclue agent";
# this should really be `partOf = [ "geoclue.service" ]`, but
# we can't be part of a system service, and the agent should
# be okay with the main service coming and going
wantedBy = [ "default.target" ];
unitConfig.ConditionUser = "!@system";
serviceConfig = {
Type = "exec";
ExecStart = "${package}/libexec/geoclue-2.0/demos/agent";
Restart = "on-failure";
PrivateTmp = true;
};
};
};
services.geoclue2.appConfig.epiphany = {
isAllowed = true;
isSystem = false;
};
services.geoclue2.appConfig.firefox = {
isAllowed = true;
isSystem = false;
};
environment.etc."geoclue/geoclue.conf".text =
generators.toINI {} ({
agent = {
whitelist = concatStringsSep ";"
(optional cfg.enableDemoAgent "geoclue-demo-agent" ++ defaultWhitelist);
};
network-nmea = {
enable = cfg.enableNmea;
};
"3g" = {
enable = cfg.enable3G;
};
cdma = {
enable = cfg.enableCDMA;
};
modem-gps = {
enable = cfg.enableModemGPS;
};
wifi = {
enable = cfg.enableWifi;
url = cfg.geoProviderUrl;
submit-data = boolToString cfg.submitData;
submission-url = cfg.submissionUrl;
submission-nick = cfg.submissionNick;
};
} // mapAttrs' appConfigToINICompatible cfg.appConfig);
};
meta = with lib; {
maintainers = with maintainers; [ ] ++ teams.pantheon.members;
};
}