mirror of
https://gitlab.com/simple-nixos-mailserver/nixos-mailserver.git
synced 2024-12-26 15:06:14 +01:00
237 lines
8.4 KiB
Nix
237 lines
8.4 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/>
|
|
|
|
{ pkgs ? import <nixpkgs> {}, blobs}:
|
|
|
|
pkgs.nixosTest {
|
|
name = "clamav";
|
|
nodes = {
|
|
server = { config, pkgs, lib, ... }:
|
|
{
|
|
imports = [
|
|
../default.nix
|
|
./lib/config.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 ${blobs}/clamav/main.cvd /var/lib/clamav/
|
|
cp ${blobs}/clamav/daily.cvd /var/lib/clamav/
|
|
cp ${blobs}/clamav/bytecode.cvd /var/lib/clamav/
|
|
chown clamav:clamav /var/lib/clamav/*
|
|
'';
|
|
|
|
serviceConfig = {
|
|
Type = "oneshot";
|
|
PrivateTmp = "yes";
|
|
PrivateDevices = "yes";
|
|
};
|
|
};
|
|
|
|
mailserver = {
|
|
enable = 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 {
|
|
imports = [
|
|
./lib/config.nix
|
|
];
|
|
|
|
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 = ''
|
|
defaults
|
|
tls on
|
|
tls_certcheck off
|
|
|
|
account user2
|
|
host ${serverIP}
|
|
port 587
|
|
from user@example2.com
|
|
auth on
|
|
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/safe-email".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 = { nodes, ... }:
|
|
''
|
|
start_all()
|
|
|
|
server.wait_for_unit("multi-user.target")
|
|
client.wait_for_unit("multi-user.target")
|
|
|
|
# TODO put this blocking into the systemd units? I am not sure if rspamd already waits for the clamd socket.
|
|
server.wait_until_succeeds(
|
|
"set +e; timeout 1 ${nodes.server.nixpkgs.pkgs.netcat}/bin/nc -U /run/rspamd/rspamd-milter.sock < /dev/null; [ $? -eq 124 ]"
|
|
)
|
|
server.wait_until_succeeds(
|
|
"set +e; timeout 1 ${nodes.server.nixpkgs.pkgs.netcat}/bin/nc -U /run/clamav/clamd.ctl < /dev/null; [ $? -eq 124 ]"
|
|
)
|
|
|
|
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 --nosslcertck -v || [ $? -eq 1 ] >&2")
|
|
|
|
# Verify that mail can be sent and received before testing virus scanner
|
|
client.execute("rm ~/mail/*")
|
|
client.succeed("msmtp -a user2 user1@example.com < /etc/root/safe-email >&2")
|
|
# give the mail server some time to process the mail
|
|
server.wait_until_fails('[ "$(postqueue -p)" != "Mail queue is empty" ]')
|
|
client.execute("rm ~/mail/*")
|
|
# fetchmail returns EXIT_CODE 0 when it retrieves mail
|
|
client.succeed("fetchmail --nosslcertck -v >&2")
|
|
client.execute("rm ~/mail/*")
|
|
|
|
with subtest("virus scan file"):
|
|
server.succeed(
|
|
'set +o pipefail; clamdscan $(readlink -f /etc/root/eicar.com.txt) | grep "Txt\\.Malware\\.Agent-1787597 FOUND" >&2'
|
|
)
|
|
|
|
with subtest("virus scan email"):
|
|
client.succeed(
|
|
'set +o pipefail; msmtp -a user2 user1\@example.com < /etc/root/virus-email 2>&1 | tee /dev/stderr | grep "server message: 554 5\\.7\\.1" >&2'
|
|
)
|
|
server.succeed("journalctl -u rspamd | grep -i eicar")
|
|
# give the mail server some time to process the mail
|
|
server.wait_until_fails('[ "$(postqueue -p)" != "Mail queue is empty" ]')
|
|
|
|
with subtest("no warnings or errors"):
|
|
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")
|
|
'';
|
|
}
|