nettsiden/nix/module.nix

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Nix
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{ config, lib, pkgs, ... }:
let
cfg = config.services.pvv-nettsiden;
inherit (lib) mkDefault mkEnableOption mkPackageOption mkIf mkOption types mdDoc;
format = pkgs.formats.php { };
in
{
options.services.pvv-nettsiden = {
enable = mkEnableOption (lib.mdDoc "Enable pvv-nettsiden");
package = mkPackageOption pkgs "pvv-nettsiden" { };
user = mkOption {
type = types.str;
default = "pvv-nettsiden";
description = mdDoc "User to run php-fpm and own the image directories";
};
group = mkOption {
type = types.str;
default = "pvv-nettsiden";
description = mdDoc "Group to run php-fpm and own the image directories";
};
domainName = mkOption {
type = types.str;
default = "www.pvv.no";
description = mdDoc "Domain name for the website";
};
enableNginx = mkEnableOption "nginx" // { default = true; };
useSSL = mkEnableOption "secure cookies" // { default = true; };
settings = mkOption {
description = "Settings for the website";
default = { };
type = types.submodule {
freeformType = format.type;
options = lib.mapAttrsRecursiveCond
(attrs: !(attrs ? "type"))
(_: option: option // { type = types.either option.type format.lib.types.raw; })
{
DOOR_SECRET = mkOption {
type = types.str;
description = mdDoc "Secret for the door sensor API";
};
GALLERY = {
DIR = mkOption {
type = types.path;
default = "/var/lib/pvv-nettsiden/gallery";
description = mdDoc "Directory where the gallery is located. See documentation at TODO";
};
SERVER_PATH = mkOption {
type = types.str;
default = "/static/gallery";
description = mdDoc "Path to the gallery on the server";
};
};
SLIDESHOW = {
DIR = mkOption {
type = types.path;
default = "/var/lib/pvv-nettsiden/slideshow";
description = mdDoc "Directory where the slideshow is located. See documentation at TODO";
};
SERVER_PATH = mkOption {
type = types.str;
default = "/static/slideshow";
description = mdDoc "Path to the slideshow on the server";
};
};
DB = {
DSN = mkOption {
type = types.str;
default = "sqlite:/var/lib/pvv-nettsiden/pvv-nettsiden.db";
example = "pgsql:host=localhost;port=5432;dbname=testdb;user=bruce;password=mypass";
description = mdDoc "Database connection string, see https://www.php.net/manual/en/pdo.construct.php";
};
USER = mkOption {
type = with types; nullOr str;
default = null;
example = "pvv-nettsiden";
description = mdDoc "Database user";
};
PASS = mkOption {
type = with types; nullOr str;
default = null;
description = mdDoc "Database password. Recommends: null, set in extraConfig";
};
};
SAML = {
COOKIE_SALT = mkOption {
type = types.str;
description = mdDoc "Salt for the SAML cookies";
};
COOKIE_SECURE = mkOption {
type = types.bool;
default = true;
description = mdDoc "Whether to set the secure flag on the SAML cookies";
};
ADMIN_NAME = mkOption {
type = types.str;
description = mdDoc "Name for the admin user";
};
ADMIN_EMAIL = mkOption {
type = types.str;
description = mdDoc "Email for the admin user";
};
ADMIN_PASSWORD = mkOption {
type = types.str;
description = mdDoc "Password for the admin user";
};
TRUSTED_DOMAINS = mkOption {
type = types.listOf types.str;
default = [ cfg.domainName ];
description = mdDoc "List of trusted domains for the SAML service";
};
};
CACHE_DIRECTORY = mkOption {
type = types.path;
default = "/var/cache/pvv-nettsiden/simplesamlphp";
description = mdDoc "List of trusted domains for the SAML service";
};
};
};
};
};
config = mkIf cfg.enable (let
# NOTE: This should absolutely not be necessary, but for some reason this file refuses to import
# the toplevel configuration file.
# NOTE: Nvm, don't this this was the problem after all?
finalPackage = cfg.package.overrideAttrs (_: _: {
postInstall = let
f = x: lib.escapeShellArg (format.lib.valueToString x);
in cfg.package.postInstall + ''
substituteInPlace $out/${cfg.package.passthru.simplesamlphpPath}/config/config.php \
--replace '$SAML_COOKIE_SECURE' ${f cfg.settings.SAML.COOKIE_SECURE} \
--replace '$SAML_COOKIE_SALT' ${f cfg.settings.SAML.COOKIE_SALT} \
--replace '$SAML_ADMIN_PASSWORD' ${f cfg.settings.SAML.ADMIN_PASSWORD} \
--replace '$SAML_ADMIN_NAME' ${f cfg.settings.SAML.ADMIN_NAME} \
--replace '$SAML_ADMIN_EMAIL' ${f cfg.settings.SAML.ADMIN_EMAIL} \
--replace '$SAML_TRUSTED_DOMAINS' ${f cfg.settings.SAML.TRUSTED_DOMAINS} \
--replace '$CACHE_DIRECTORY' ${f cfg.settings.CACHE_DIRECTORY}
'';
});
in {
users.users = mkIf (cfg.user == "pvv-nettsiden") {
"pvv-nettsiden" = {
description = "PVV Website Service User";
group = cfg.group;
createHome = false;
isSystemUser = true;
};
};
users.groups = mkIf (cfg.group == "pvv-nettsiden") {
"pvv-nettsiden" = { };
};
systemd.tmpfiles.settings."10-pvv-nettsiden".${cfg.settings.CACHE_DIRECTORY}.d = {
inherit (cfg) user group;
mode = "0770";
};
services.nginx = mkIf cfg.enableNginx {
enable = true;
recommendedGzipSettings = mkDefault true;
recommendedProxySettings = mkDefault true;
virtualHosts."${cfg.domainName}" = {
forceSSL = mkDefault cfg.useSSL;
enableACME = mkDefault true;
locations = {
"/" = {
root = "${finalPackage}/share/php/pvv-nettsiden/www/";
index = "index.php";
};
"~ \\.php$".extraConfig = ''
include ${pkgs.nginx}/conf/fastcgi_params;
fastcgi_param SCRIPT_FILENAME ${finalPackage}/share/php/pvv-nettsiden/www$fastcgi_script_name;
fastcgi_pass unix:${config.services.phpfpm.pools."pvv-nettsiden".socket};
'';
# based on https://simplesamlphp.org/docs/stable/simplesamlphp-install.html#configuring-nginx
"^~ /simplesaml/" = {
alias = "${finalPackage}/${finalPackage.passthru.simplesamlphpPath}/public/";
index = "index.php";
extraConfig = ''
location ~ ^/simplesaml/(?<phpfile>.+?\.php)(?<pathinfo>/.*)?$ {
include ${pkgs.nginx}/conf/fastcgi_params;
fastcgi_pass unix:${config.services.phpfpm.pools."pvv-nettsiden".socket};
fastcgi_param SCRIPT_FILENAME ${finalPackage}/${finalPackage.passthru.simplesamlphpPath}/public/$phpfile;
# Must be prepended with the baseurlpath
fastcgi_param SCRIPT_NAME /simplesaml/$phpfile;
fastcgi_param PATH_INFO $pathinfo if_not_empty;
}
'';
};
"^~ ${cfg.settings.GALLERY.SERVER_PATH}" = {
root = cfg.settings.GALLERY.DIR;
extraConfig = ''
rewrite ^${cfg.settings.GALLERY.SERVER_PATH}/(.*)$ /$1 break;
'';
};
"^~ ${cfg.settings.SLIDESHOW.SERVER_PATH}" = {
root = cfg.settings.SLIDESHOW.DIR;
extraConfig = ''
rewrite ^${cfg.settings.SLIDESHOW.SERVER_PATH}/(.*)$ /$1 break;
'';
};
};
};
};
services.phpfpm.pools.pvv-nettsiden = {
user = cfg.user;
group = cfg.group;
phpEnv.PVV_CONFIG_FILE = toString (format.generate "pvv-nettsiden-conf.php" cfg.settings);
settings = {
"listen.owner" = config.services.nginx.user;
"listen.group" = config.services.nginx.group;
"pm" = mkDefault "ondemand";
"pm.max_children" = mkDefault 32;
"pm.process_idle_timeout" = mkDefault "10s";
"pm.max_requests" = mkDefault 500;
};
};
});
}