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nixpkgs/nixos/modules/services/mail/roundcube.nix
2024-08-30 22:59:28 +02:00

287 lines
10 KiB
Nix

{ lib, config, pkgs, ... }:
let
cfg = config.services.roundcube;
fpm = config.services.phpfpm.pools.roundcube;
localDB = cfg.database.host == "localhost";
user = cfg.database.username;
phpWithPspell = pkgs.php83.withExtensions ({ enabled, all }: [ all.pspell ] ++ enabled);
in
{
options.services.roundcube = {
enable = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Whether to enable roundcube.
Also enables nginx virtual host management.
Further nginx configuration can be done by adapting `services.nginx.virtualHosts.<name>`.
See [](#opt-services.nginx.virtualHosts) for further information.
'';
};
hostName = lib.mkOption {
type = lib.types.str;
example = "webmail.example.com";
description = "Hostname to use for the nginx vhost";
};
package = lib.mkPackageOption pkgs "roundcube" {
example = "roundcube.withPlugins (plugins: [ plugins.persistent_login ])";
};
database = {
username = lib.mkOption {
type = lib.types.str;
default = "roundcube";
description = ''
Username for the postgresql connection.
If `database.host` is set to `localhost`, a unix user and group of the same name will be created as well.
'';
};
host = lib.mkOption {
type = lib.types.str;
default = "localhost";
description = ''
Host of the postgresql server. If this is not set to
`localhost`, you have to create the
postgresql user and database yourself, with appropriate
permissions.
'';
};
password = lib.mkOption {
type = lib.types.str;
description = "Password for the postgresql connection. Do not use: the password will be stored world readable in the store; use `passwordFile` instead.";
default = "";
};
passwordFile = lib.mkOption {
type = lib.types.str;
description = ''
Password file for the postgresql connection.
Must be formatted according to PostgreSQL .pgpass standard (see https://www.postgresql.org/docs/current/libpq-pgpass.html)
but only one line, no comments and readable by user `nginx`.
Ignored if `database.host` is set to `localhost`, as peer authentication will be used.
'';
};
dbname = lib.mkOption {
type = lib.types.str;
default = "roundcube";
description = "Name of the postgresql database";
};
};
plugins = lib.mkOption {
type = lib.types.listOf lib.types.str;
default = [];
description = ''
List of roundcube plugins to enable. Currently, only those directly shipped with Roundcube are supported.
'';
};
dicts = lib.mkOption {
type = lib.types.listOf lib.types.package;
default = [];
example = lib.literalExpression "with pkgs.aspellDicts; [ en fr de ]";
description = ''
List of aspell dictionaries for spell checking. If empty, spell checking is disabled.
'';
};
maxAttachmentSize = lib.mkOption {
type = lib.types.int;
default = 18;
apply = configuredMaxAttachmentSize: "${toString (configuredMaxAttachmentSize * 1.37)}M";
description = ''
The maximum attachment size in MB.
[upstream issue comment]: https://github.com/roundcube/roundcubemail/issues/7979#issuecomment-808879209
::: {.note}
Since there is some overhead in base64 encoding applied to attachments, + 37% will be added
to the value set in this option in order to offset the overhead. For example, setting
`maxAttachmentSize` to `100` would result in `137M` being the real value in the configuration.
See [upstream issue comment] for more details on the motivations behind this.
:::
'';
};
configureNginx = lib.mkOption {
type = lib.types.bool;
default = true;
description = "Configure nginx as a reverse proxy for roundcube.";
};
extraConfig = lib.mkOption {
type = lib.types.lines;
default = "";
description = "Extra configuration for roundcube webmail instance";
};
};
config = lib.mkIf cfg.enable {
# backward compatibility: if password is set but not passwordFile, make one.
services.roundcube.database.passwordFile = lib.mkIf (!localDB && cfg.database.password != "") (lib.mkDefault ("${pkgs.writeText "roundcube-password" cfg.database.password}"));
warnings = lib.optional (!localDB && cfg.database.password != "") "services.roundcube.database.password is deprecated and insecure; use services.roundcube.database.passwordFile instead";
environment.etc."roundcube/config.inc.php".text = ''
<?php
${lib.optionalString (!localDB) ''
$password = file('${cfg.database.passwordFile}')[0];
$password = preg_split('~\\\\.(*SKIP)(*FAIL)|\:~s', $password);
$password = rtrim(end($password));
$password = str_replace("\\:", ":", $password);
$password = str_replace("\\\\", "\\", $password);
''}
$config = array();
$config['db_dsnw'] = 'pgsql://${cfg.database.username}${lib.optionalString (!localDB) ":' . $password . '"}@${if localDB then "unix(/run/postgresql)" else cfg.database.host}/${cfg.database.dbname}';
$config['log_driver'] = 'syslog';
$config['max_message_size'] = '${cfg.maxAttachmentSize}';
$config['plugins'] = [${lib.concatMapStringsSep "," (p: "'${p}'") cfg.plugins}];
$config['des_key'] = file_get_contents('/var/lib/roundcube/des_key');
$config['mime_types'] = '${pkgs.nginx}/conf/mime.types';
# Roundcube uses PHP-FPM which has `PrivateTmp = true;`
$config['temp_dir'] = '/tmp';
$config['enable_spellcheck'] = ${if cfg.dicts == [] then "false" else "true"};
# by default, spellchecking uses a third-party cloud services
$config['spellcheck_engine'] = 'pspell';
$config['spellcheck_languages'] = array(${lib.concatMapStringsSep ", " (dict: let p = builtins.parseDrvName dict.shortName; in "'${p.name}' => '${dict.fullName}'") cfg.dicts});
${cfg.extraConfig}
'';
services.nginx = lib.mkIf cfg.configureNginx {
enable = true;
virtualHosts = {
${cfg.hostName} = {
forceSSL = lib.mkDefault true;
enableACME = lib.mkDefault true;
root = cfg.package;
locations."/" = {
index = "index.php";
priority = 1100;
extraConfig = ''
add_header Cache-Control 'public, max-age=604800, must-revalidate';
'';
};
locations."~ ^/(SQL|bin|config|logs|temp|vendor)/" = {
priority = 3110;
extraConfig = ''
return 404;
'';
};
locations."~ ^/(CHANGELOG.md|INSTALL|LICENSE|README.md|SECURITY.md|UPGRADING|composer.json|composer.lock)" = {
priority = 3120;
extraConfig = ''
return 404;
'';
};
locations."~* \\.php(/|$)" = {
priority = 3130;
extraConfig = ''
fastcgi_pass unix:${fpm.socket};
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
include ${config.services.nginx.package}/conf/fastcgi.conf;
'';
};
};
};
};
assertions = [
{
assertion = localDB -> cfg.database.username == cfg.database.dbname;
message = ''
When setting up a DB and its owner user, the owner and the DB name must be
equal!
'';
}
];
services.postgresql = lib.mkIf localDB {
enable = true;
ensureDatabases = [ cfg.database.dbname ];
ensureUsers = [ {
name = cfg.database.username;
ensureDBOwnership = true;
} ];
};
users.users.${user} = lib.mkIf localDB {
group = user;
isSystemUser = true;
createHome = false;
};
users.groups.${user} = lib.mkIf localDB {};
services.phpfpm.pools.roundcube = {
user = if localDB then user else "nginx";
phpOptions = ''
error_log = 'stderr'
log_errors = on
post_max_size = ${cfg.maxAttachmentSize}
upload_max_filesize = ${cfg.maxAttachmentSize}
'';
settings = lib.mapAttrs (name: lib.mkDefault) {
"listen.owner" = "nginx";
"listen.group" = "nginx";
"listen.mode" = "0660";
"pm" = "dynamic";
"pm.max_children" = 75;
"pm.start_servers" = 2;
"pm.min_spare_servers" = 1;
"pm.max_spare_servers" = 20;
"pm.max_requests" = 500;
"catch_workers_output" = true;
};
phpPackage = phpWithPspell;
phpEnv.ASPELL_CONF = "dict-dir ${pkgs.aspellWithDicts (_: cfg.dicts)}/lib/aspell";
};
systemd.services.phpfpm-roundcube.after = [ "roundcube-setup.service" ];
# Restart on config changes.
systemd.services.phpfpm-roundcube.restartTriggers = [
config.environment.etc."roundcube/config.inc.php".source
];
systemd.services.roundcube-setup = lib.mkMerge [
(lib.mkIf (cfg.database.host == "localhost") {
requires = [ "postgresql.service" ];
after = [ "postgresql.service" ];
})
{
wants = [ "network-online.target" ];
after = [ "network-online.target" ];
wantedBy = [ "multi-user.target" ];
path = [ config.services.postgresql.package ];
script = let
psql = "${lib.optionalString (!localDB) "PGPASSFILE=${cfg.database.passwordFile}"} psql ${lib.optionalString (!localDB) "-h ${cfg.database.host} -U ${cfg.database.username} "} ${cfg.database.dbname}";
in
''
version="$(${psql} -t <<< "select value from system where name = 'roundcube-version';" || true)"
if ! (grep -E '[a-zA-Z0-9]' <<< "$version"); then
${psql} -f ${cfg.package}/SQL/postgres.initial.sql
fi
if [ ! -f /var/lib/roundcube/des_key ]; then
base64 /dev/urandom | head -c 24 > /var/lib/roundcube/des_key;
# we need to log out everyone in case change the des_key
# from the default when upgrading from nixos 19.09
${psql} <<< 'TRUNCATE TABLE session;'
fi
${phpWithPspell}/bin/php ${cfg.package}/bin/update.sh
'';
serviceConfig = {
Type = "oneshot";
StateDirectory = "roundcube";
User = if localDB then user else "nginx";
# so that the des_key is not world readable
StateDirectoryMode = "0700";
};
}
];
};
}