228 lines
7.8 KiB
Nix
228 lines
7.8 KiB
Nix
|
# nixos-mailserver: a simple mail server
|
||
|
|
# Copyright (C) 2016-2018 Robin Raymond
|
||
|
|
#
|
||
|
|
# This program is free software: you can redistribute it and/or modify
|
||
|
|
# it under the terms of the GNU General Public License as published by
|
||
|
|
# the Free Software Foundation, either version 3 of the License, or
|
||
|
|
# (at your option) any later version.
|
||
|
|
#
|
||
|
|
# This program is distributed in the hope that it will be useful,
|
||
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
# GNU General Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU General Public License
|
||
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>
|
||
|
|
|
||
|
|
import <nixpkgs/nixos/tests/make-test.nix> {
|
||
|
|
|
||
|
|
nodes = {
|
||
|
|
server = { config, pkgs, lib, ... }:
|
||
|
|
let
|
||
|
|
clamav-db = pkgs.srcOnly {
|
||
|
|
name = "ClamAV-db";
|
||
|
|
src = pkgs.fetchurl {
|
||
|
|
url = "https://files.griff.name/ClamAV-db.tar";
|
||
|
|
sha256 = "eecad99f4c071d216bd91565f84c0d90a1f93e5e3e22d8f3087686ba3bd219e7";
|
||
|
|
};
|
||
|
|
};
|
||
|
|
in
|
||
|
|
{
|
||
|
|
imports = [
|
||
|
|
../default.nix
|
||
|
|
];
|
||
|
|
|
||
|
|
virtualisation.memorySize = 1500;
|
||
|
|
|
||
|
|
services.rsyslogd = {
|
||
|
|
enable = true;
|
||
|
|
defaultConfig = ''
|
||
|
|
*.* /dev/console
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
|
||
|
|
services.clamav.updater.enable = lib.mkForce false;
|
||
|
|
systemd.services.old-clam = {
|
||
|
|
before = [ "clamav-daemon.service" ];
|
||
|
|
requiredBy = [ "clamav-daemon.service" ];
|
||
|
|
description = "ClamAV virus database";
|
||
|
|
|
||
|
|
preStart = ''
|
||
|
|
mkdir -m 0755 -p /var/lib/clamav
|
||
|
|
chown clamav:clamav /var/lib/clamav
|
||
|
|
'';
|
||
|
|
|
||
|
|
script = ''
|
||
|
|
cp ${clamav-db}/bytecode.cvd /var/lib/clamav/
|
||
|
|
cp ${clamav-db}/main.cvd /var/lib/clamav/
|
||
|
|
cp ${clamav-db}/daily.cvd /var/lib/clamav/
|
||
|
|
chown clamav:clamav /var/lib/clamav/*
|
||
|
|
'';
|
||
|
|
|
||
|
|
serviceConfig = {
|
||
|
|
Type = "oneshot";
|
||
|
|
PrivateTmp = "yes";
|
||
|
|
PrivateDevices = "yes";
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
mailserver = {
|
||
|
|
enable = true;
|
||
|
|
debug = true;
|
||
|
|
fqdn = "mail.example.com";
|
||
|
|
domains = [ "example.com" "example2.com" ];
|
||
|
|
virusScanning = true;
|
||
|
|
|
||
|
|
loginAccounts = {
|
||
|
|
"user1@example.com" = {
|
||
|
|
hashedPassword = "$6$/z4n8AQl6K$kiOkBTWlZfBd7PvF5GsJ8PmPgdZsFGN1jPGZufxxr60PoR0oUsrvzm2oQiflyz5ir9fFJ.d/zKm/NgLXNUsNX/";
|
||
|
|
aliases = [ "postmaster@example.com" ];
|
||
|
|
catchAll = [ "example.com" ];
|
||
|
|
};
|
||
|
|
"user@example2.com" = {
|
||
|
|
hashedPassword = "$6$u61JrAtuI0a$nGEEfTP5.eefxoScUGVG/Tl0alqla2aGax4oTd85v3j3xSmhv/02gNfSemv/aaMinlv9j/ZABosVKBrRvN5Qv0";
|
||
|
|
};
|
||
|
|
};
|
||
|
|
enableImap = true;
|
||
|
|
};
|
||
|
|
|
||
|
|
environment.etc = {
|
||
|
|
"root/eicar.com.txt".text = "X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*";
|
||
|
|
};
|
||
|
|
};
|
||
|
|
client = { nodes, config, pkgs, ... }: let
|
||
|
|
serverIP = nodes.server.config.networking.primaryIPAddress;
|
||
|
|
clientIP = nodes.client.config.networking.primaryIPAddress;
|
||
|
|
grep-ip = pkgs.writeScriptBin "grep-ip" ''
|
||
|
|
#!${pkgs.stdenv.shell}
|
||
|
|
echo grep '${clientIP}' "$@" >&2
|
||
|
|
exec grep '${clientIP}' "$@"
|
||
|
|
'';
|
||
|
|
in {
|
||
|
|
environment.systemPackages = with pkgs; [
|
||
|
|
fetchmail msmtp procmail findutils grep-ip
|
||
|
|
];
|
||
|
|
environment.etc = {
|
||
|
|
"root/.fetchmailrc" = {
|
||
|
|
text = ''
|
||
|
|
poll ${serverIP} with proto IMAP
|
||
|
|
user 'user1@example.com' there with password 'user1' is 'root' here
|
||
|
|
mda procmail
|
||
|
|
'';
|
||
|
|
mode = "0700";
|
||
|
|
};
|
||
|
|
"root/.procmailrc" = {
|
||
|
|
text = "DEFAULT=$HOME/mail";
|
||
|
|
};
|
||
|
|
"root/.msmtprc" = {
|
||
|
|
text = ''
|
||
|
|
account test2
|
||
|
|
host ${serverIP}
|
||
|
|
port 587
|
||
|
|
from user@example2.com
|
||
|
|
user user@example2.com
|
||
|
|
password user2
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
"root/virus-email".text = ''
|
||
|
|
From: User2 <user@example2.com>
|
||
|
|
Content-Type: multipart/mixed;
|
||
|
|
boundary="Apple-Mail=_2689C63E-FD18-4E4D-8822-54797BDA9607"
|
||
|
|
Mime-Version: 1.0 (Mac OS X Mail 11.3 \(3445.6.18\))
|
||
|
|
Subject: Testy McTest
|
||
|
|
Message-Id: <94550DD9-1FF1-4ED1-9F09-8812FF2E59AA@example.com>
|
||
|
|
Date: Sat, 12 May 2018 14:15:44 +0200
|
||
|
|
To: User1 <user1@example.com>
|
||
|
|
X-Mailer: Apple Mail (2.3445.6.18)
|
||
|
|
|
||
|
|
|
||
|
|
--Apple-Mail=_2689C63E-FD18-4E4D-8822-54797BDA9607
|
||
|
|
Content-Transfer-Encoding: 7bit
|
||
|
|
Content-Type: text/plain;
|
||
|
|
charset=us-ascii
|
||
|
|
|
||
|
|
Hello
|
||
|
|
|
||
|
|
I have attached a dangerous virus.
|
||
|
|
|
||
|
|
Mfg.
|
||
|
|
User2
|
||
|
|
|
||
|
|
|
||
|
|
--Apple-Mail=_2689C63E-FD18-4E4D-8822-54797BDA9607
|
||
|
|
Content-Disposition: attachment;
|
||
|
|
filename=eicar.com.txt
|
||
|
|
Content-Type: text/plain;
|
||
|
|
x-unix-mode=0644;
|
||
|
|
name="eicar.com.txt"
|
||
|
|
Content-Transfer-Encoding: 7bit
|
||
|
|
|
||
|
|
X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*
|
||
|
|
--Apple-Mail=_2689C63E-FD18-4E4D-8822-54797BDA9607--
|
||
|
|
'';
|
||
|
|
"root/email2".text = ''
|
||
|
|
From: User <user@example2.com>
|
||
|
|
To: User1 <user1@example.com>
|
||
|
|
Cc:
|
||
|
|
Bcc:
|
||
|
|
Subject: This is a test Email from user@example2.com to user1
|
||
|
|
Reply-To:
|
||
|
|
|
||
|
|
Hello User1,
|
||
|
|
|
||
|
|
how are you doing today?
|
||
|
|
|
||
|
|
XOXO User1
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
testScript =
|
||
|
|
''
|
||
|
|
startAll;
|
||
|
|
|
||
|
|
$server->waitForUnit("multi-user.target");
|
||
|
|
$client->waitForUnit("multi-user.target");
|
||
|
|
|
||
|
|
$client->execute("cp -p /etc/root/.* ~/");
|
||
|
|
$client->succeed("mkdir -p ~/mail");
|
||
|
|
$client->succeed("ls -la ~/ >&2");
|
||
|
|
$client->succeed("cat ~/.fetchmailrc >&2");
|
||
|
|
$client->succeed("cat ~/.procmailrc >&2");
|
||
|
|
$client->succeed("cat ~/.msmtprc >&2");
|
||
|
|
|
||
|
|
# fetchmail returns EXIT_CODE 1 when no new mail
|
||
|
|
$client->succeed("fetchmail -v || [ \$? -eq 1 ] >&2");
|
||
|
|
|
||
|
|
# Verify that mail can be sent and received before testing virus scanner
|
||
|
|
$client->execute("rm ~/mail/*");
|
||
|
|
$client->succeed("msmtp -a test2 --tls=on --tls-certcheck=off --auth=on user1\@example.com < /etc/root/email2 >&2");
|
||
|
|
# give the mail server some time to process the mail
|
||
|
|
$server->waitUntilFails('[ "$(postqueue -p)" != "Mail queue is empty" ]');
|
||
|
|
$client->execute("rm ~/mail/*");
|
||
|
|
# fetchmail returns EXIT_CODE 0 when it retrieves mail
|
||
|
|
$client->succeed("fetchmail -v >&2");
|
||
|
|
$client->execute("rm ~/mail/*");
|
||
|
|
|
||
|
|
|
||
|
|
subtest "virus scan file", sub {
|
||
|
|
$server->fail("clamscan --follow-file-symlinks=2 -r /etc/root/ >&2");
|
||
|
|
};
|
||
|
|
|
||
|
|
subtest "virus scanner", sub {
|
||
|
|
$client->fail("msmtp -a test2 --tls=on --tls-certcheck=off --auth=on user1\@example.com < /etc/root/virus-email >&2");
|
||
|
|
# give the mail server some time to process the mail
|
||
|
|
$server->waitUntilFails('[ "$(postqueue -p)" != "Mail queue is empty" ]');
|
||
|
|
};
|
||
|
|
|
||
|
|
subtest "no warnings or errors", sub {
|
||
|
|
$server->fail("journalctl -u postfix | grep -i error >&2");
|
||
|
|
$server->fail("journalctl -u postfix | grep -i warning >&2");
|
||
|
|
$server->fail("journalctl -u dovecot2 | grep -i error >&2");
|
||
|
|
$server->fail("journalctl -u dovecot2 | grep -i warning >&2");
|
||
|
|
};
|
||
|
|
|
||
|
|
'';
|
||
|
|
}
|