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https://gitlab.com/simple-nixos-mailserver/nixos-mailserver.git
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88 lines
2.7 KiB
Nix
88 lines
2.7 KiB
Nix
# nixos-mailserver: a simple mail server
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# Copyright (C) 2016-2018 Robin Raymond
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>
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{ config, pkgs, lib, ... }:
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with config.mailserver;
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let
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vmail_user = {
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name = vmailUserName;
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isNormalUser = false;
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uid = vmailUID;
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home = mailDirectory;
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createHome = true;
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group = vmailGroupName;
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};
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virtualMailUsersActivationScript = pkgs.writeScript "activate-virtual-mail-users" ''
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#!${pkgs.stdenv.shell}
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set -euo pipefail
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# Create directory to store user sieve scripts if it doesn't exist
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if (! test -d "/var/sieve"); then
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mkdir "/var/sieve"
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chown "${vmailUserName}:${vmailGroupName}" "/var/sieve"
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chmod 770 "/var/sieve"
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fi
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# Copy user's sieve script to the correct location (if it exists). If it
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# is null, remove the file.
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${lib.concatMapStringsSep "\n" ({ name, sieveScript }:
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if lib.isString sieveScript then ''
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if (! test -d "/var/sieve/${name}"); then
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mkdir -p "/var/sieve/${name}"
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chown "${name}:${vmailGroupName}" "/var/sieve/${name}"
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chmod 770 "/var/sieve/${name}"
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fi
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cat << EOF > "/var/sieve/${name}/default.sieve"
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${sieveScript}
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EOF
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chown "${name}:${vmailGroupName}" "/var/sieve/${name}/default.sieve"
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'' else ''
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if (test -f "/var/sieve/${name}/default.sieve"); then
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rm "/var/sieve/${name}/default.sieve"
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fi
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if (test -f "/var/sieve/${name}.svbin"); then
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rm "/var/sieve/${name}/default.svbin"
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fi
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'') (map (user: { inherit (user) name sieveScript; })
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(lib.attrValues loginAccounts))}
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'';
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in {
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config = lib.mkIf enable {
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# set the vmail gid to a specific value
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users.groups = {
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"${vmailGroupName}" = { gid = vmailUID; };
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};
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# define all users
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users.users = {
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"${vmail_user.name}" = lib.mkForce vmail_user;
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};
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systemd.services.activate-virtual-mail-users = {
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wantedBy = [ "multi-user.target" ];
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before = [ "dovecot2.service" ];
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serviceConfig = {
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ExecStart = virtualMailUsersActivationScript;
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};
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enable = true;
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};
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};
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}
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