nixpkgs/nixos/modules/services/networking/firefox/sync-server.nix
2019-01-30 15:59:01 +01:00

184 lines
5.5 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.firefox.syncserver;
defaultDbLocation = "/var/db/firefox-sync-server/firefox-sync-server.db";
defaultSqlUri = "sqlite:///${defaultDbLocation}";
syncServerIni = pkgs.writeText "syncserver.ini" ''
[DEFAULT]
overrides = ${cfg.privateConfig}
[server:main]
use = egg:gunicorn
host = ${cfg.listen.address}
port = ${toString cfg.listen.port}
[app:main]
use = egg:syncserver
[syncserver]
public_url = ${cfg.publicUrl}
${optionalString (cfg.sqlUri != "") "sqluri = ${cfg.sqlUri}"}
allow_new_users = ${boolToString cfg.allowNewUsers}
[browserid]
backend = tokenserver.verifiers.LocalVerifier
audiences = ${removeSuffix "/" cfg.publicUrl}
'';
user = "syncserver";
group = "syncserver";
in
{
meta.maintainers = with lib.maintainers; [ nadrieril ];
options = {
services.firefox.syncserver = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable a Firefox Sync Server, this give the opportunity to
Firefox users to store all synchronized data on their own server. To use this
server, Firefox users should visit the <option>about:config</option>, and
replicate the following change
<screen>
services.sync.tokenServerURI: http://localhost:5000/token/1.0/sync/1.5
</screen>
where <option>http://localhost:5000/</option> corresponds to the
public url of the server.
'';
};
listen.address = mkOption {
type = types.str;
default = "127.0.0.1";
example = "0.0.0.0";
description = ''
Address on which the sync server listen to.
'';
};
listen.port = mkOption {
type = types.int;
default = 5000;
description = ''
Port on which the sync server listen to.
'';
};
publicUrl = mkOption {
type = types.str;
default = "http://localhost:5000/";
example = "http://sync.example.com/";
description = ''
Public URL with which firefox users can use to access the sync server.
'';
};
allowNewUsers = mkOption {
type = types.bool;
default = true;
description = ''
Whether to allow new-user signups on the server. Only request by
existing accounts will be honored.
'';
};
sqlUri = mkOption {
type = types.str;
default = defaultSqlUri;
example = "postgresql://scott:tiger@localhost/test";
description = ''
The location of the database. This URL is composed of
<option>dialect[+driver]://user:password@host/dbname[?key=value..]</option>,
where <option>dialect</option> is a database name such as
<option>mysql</option>, <option>oracle</option>, <option>postgresql</option>,
etc., and <option>driver</option> the name of a DBAPI, such as
<option>psycopg2</option>, <option>pyodbc</option>, <option>cx_oracle</option>,
etc. The <link
xlink:href="http://docs.sqlalchemy.org/en/rel_0_9/core/engines.html#database-urls">
SQLAlchemy documentation</link> provides more examples and describe the syntax of
the expected URL.
'';
};
privateConfig = mkOption {
type = types.str;
default = "/etc/firefox/syncserver-secret.ini";
description = ''
The private config file is used to extend the generated config with confidential
information, such as the <option>syncserver.sqlUri</option> setting if it contains a
password, and the <option>syncserver.secret</option> setting is used by the server to
generate cryptographically-signed authentication tokens.
If this file does not exists, then it is created with a generated
<option>syncserver.secret</option> settings.
'';
};
};
};
config = mkIf cfg.enable {
systemd.services.syncserver = {
after = [ "network.target" ];
description = "Firefox Sync Server";
wantedBy = [ "multi-user.target" ];
path = [
pkgs.coreutils
(pkgs.python.withPackages (ps: [ pkgs.syncserver ps.gunicorn ]))
];
serviceConfig = {
User = user;
Group = group;
PermissionsStartOnly = true;
};
preStart = ''
if ! test -e ${cfg.privateConfig}; then
mkdir -p $(dirname ${cfg.privateConfig})
echo > ${cfg.privateConfig} '[syncserver]'
chmod 600 ${cfg.privateConfig}
echo >> ${cfg.privateConfig} "secret = $(head -c 20 /dev/urandom | sha1sum | tr -d ' -')"
fi
chmod 600 ${cfg.privateConfig}
chmod 755 $(dirname ${cfg.privateConfig})
chown ${user}:${group} ${cfg.privateConfig}
'' + optionalString (cfg.sqlUri == defaultSqlUri) ''
if ! test -e $(dirname ${defaultDbLocation}); then
mkdir -m 700 -p $(dirname ${defaultDbLocation})
chown ${user}:${group} $(dirname ${defaultDbLocation})
fi
# Move previous database file if it exists
oldDb="/var/db/firefox-sync-server.db"
if test -f $oldDb; then
mv $oldDb ${defaultDbLocation}
chown ${user}:${group} ${defaultDbLocation}
fi
'';
script = ''
gunicorn --paste ${syncServerIni}
'';
};
users.users.${user} = {
inherit group;
isSystemUser = true;
};
users.groups.${group} = {};
};
}