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{ lib, config, pkgs, ... }:
with lib;
let
cfg = config.services.postfixadmin;
fpm = config.services.phpfpm.pools.postfixadmin;
localDB = cfg.database.host == "localhost";
user = if localDB then cfg.database.username else "nginx";
in
{
options.services.postfixadmin = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable postfixadmin.
Also enables nginx virtual host management.
Further nginx configuration can be done by adapting <literal>services.nginx.virtualHosts.<name></literal>.
See <xref linkend="opt-services.nginx.virtualHosts"/> for further information.
'';
};
hostName = mkOption {
type = types.str;
example = "postfixadmin.example.com";
description = "Hostname to use for the nginx vhost";
};
adminEmail = mkOption {
type = types.str;
example = "postmaster@example.com";
description = ''
Defines the Site Admin's email address.
This will be used to send emails from to create mailboxes and
from Send Email / Broadcast message pages.
'';
};
setupPasswordFile = mkOption {
type = types.path;
description = ''
Password file for the admin.
Generate with <literal>php -r "echo password_hash('some password here', PASSWORD_DEFAULT);"</literal>
'';
};
database = {
username = mkOption {
type = types.str;
default = "postfixadmin";
description = ''
Username for the postgresql connection.
If <literal>database.host</literal> is set to <literal>localhost</literal>, a unix user and group of the same name will be created as well.
'';
};
host = mkOption {
type = types.str;
default = "localhost";
description = ''
Host of the postgresql server. If this is not set to
<literal>localhost</literal>, you have to create the
postgresql user and database yourself, with appropriate
permissions.
'';
};
passwordFile = mkOption {
type = types.path;
description = "Password file for the postgresql connection. Must be readable by user <literal>nginx</literal>.";
};
dbname = mkOption {
type = types.str;
default = "postfixadmin";
description = "Name of the postgresql database";
};
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = "Extra configuration for the postfixadmin instance, see postfixadmin's config.inc.php for available options.";
};
};
config = mkIf cfg.enable {
environment.etc."postfixadmin/config.local.php".text = ''
<?php
$CONF['setup_password'] = file_get_contents('${cfg.setupPasswordFile}');
$CONF['database_type'] = 'pgsql';
$CONF['database_host'] = ${if localDB then "null" else "'${cfg.database.host}'"};
${optionalString localDB "$CONF['database_user'] = '${cfg.database.username}';"}
$CONF['database_password'] = ${if localDB then "'dummy'" else "file_get_contents('${cfg.database.passwordFile}')"};
$CONF['database_name'] = '${cfg.database.dbname}';
$CONF['configured'] = true;
${cfg.extraConfig}
'';
systemd.tmpfiles.rules = [ "d /var/cache/postfixadmin/templates_c 700 ${user} ${user}" ];
services.nginx = {
enable = true;
virtualHosts = {
${cfg.hostName} = {
forceSSL = mkDefault true;
enableACME = mkDefault true;
locations."/" = {
root = "${pkgs.postfixadmin}/public";
index = "index.php";
extraConfig = ''
location ~* \.php$ {
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:${fpm.socket};
include ${config.services.nginx.package}/conf/fastcgi_params;
include ${pkgs.nginx}/conf/fastcgi.conf;
}
'';
};
};
};
};
services.postgresql = mkIf localDB {
enable = true;
ensureUsers = [ {
name = cfg.database.username;
} ];
};
# The postgresql module doesn't currently support concepts like
# objects owners and extensions; for now we tack on what's needed
# here.
systemd.services.postfixadmin-postgres = let pgsql = config.services.postgresql; in mkIf localDB {
after = [ "postgresql.service" ];
bindsTo = [ "postgresql.service" ];
wantedBy = [ "multi-user.target" ];
path = [
pgsql.package
pkgs.util-linux
];
script = ''
set -eu
PSQL() {
psql --port=${toString pgsql.port} "$@"
}
PSQL -tAc "SELECT 1 FROM pg_database WHERE datname = '${cfg.database.dbname}'" | grep -q 1 || PSQL -tAc 'CREATE DATABASE "${cfg.database.dbname}" OWNER "${cfg.database.username}"'
current_owner=$(PSQL -tAc "SELECT pg_catalog.pg_get_userbyid(datdba) FROM pg_catalog.pg_database WHERE datname = '${cfg.database.dbname}'")
if [[ "$current_owner" != "${cfg.database.username}" ]]; then
PSQL -tAc 'ALTER DATABASE "${cfg.database.dbname}" OWNER TO "${cfg.database.username}"'
if [[ -e "${config.services.postgresql.dataDir}/.reassigning_${cfg.database.dbname}" ]]; then
echo "Reassigning ownership of database ${cfg.database.dbname} to user ${cfg.database.username} failed on last boot. Failing..."
exit 1
fi
touch "${config.services.postgresql.dataDir}/.reassigning_${cfg.database.dbname}"
PSQL "${cfg.database.dbname}" -tAc "REASSIGN OWNED BY \"$current_owner\" TO \"${cfg.database.username}\""
rm "${config.services.postgresql.dataDir}/.reassigning_${cfg.database.dbname}"
fi
'';
serviceConfig = {
User = pgsql.superUser;
Type = "oneshot";
RemainAfterExit = true;
};
};
users.users.${user} = mkIf localDB {
group = user;
isSystemUser = true;
createHome = false;
};
users.groups.${user} = mkIf localDB {};
services.phpfpm.pools.postfixadmin = {
user = user;
phpPackage = pkgs.php74;
phpOptions = ''
error_log = 'stderr'
log_errors = on
'';
settings = mapAttrs (name: 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;
};
};
};
}
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