nixos-config/modules/mailserver/autoconfig.nix

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# SPDX-FileCopyrightText: 2023 Simon Bruder <simon@sbruder.de>
#
# SPDX-License-Identifier: AGPL-3.0-or-later
{ config, lib, pkgs, ... }:
let
cfg = config.sbruder.mailserver;
mkConfigFile = domain: pkgs.writeText "config-v1.1.xml" ''
<?xml version="1.0" encoding="UTF-8"?>
<clientConfig version="1.1">
<emailProvider id="${lib.escapeXML domain}">
<domain>${lib.escapeXML domain}</domain>
<displayName>${lib.escapeXML domain}</displayName>
<displayShortName>${lib.escapeXML domain}</displayShortName>
<incomingServer type="imap">
<hostname>${lib.escapeXML cfg.fqdn}</hostname>
<port>993</port>
<socketType>SSL</socketType>
<authentication>password-cleartext</authentication>
<username>%EMAILADDRESS%</username>
</incomingServer>
<outgoingServer type="smtp">
<hostname>${lib.escapeXML cfg.fqdn}</hostname>
<port>465</port>
<socketType>SSL</socketType>
<authentication>password-cleartext</authentication>
<username>%EMAILADDRESS%</username>
</outgoingServer>
</emailProvider>
</clientConfig>
'';
in
{
options.sbruder.mailserver.autoconfig = {
enable = lib.mkEnableOption "autoconfiguration of compatible clients. Requires autoconfig.<domain> to exist for all specified domains";
};
config = lib.mkIf cfg.enable {
services.nginx = lib.mkIf cfg.autoconfig.enable {
enable = true;
virtualHosts = lib.listToAttrs (map
(domain: lib.nameValuePair "autoconfig.${domain}" {
enableACME = true;
forceSSL = true;
locations."=/mail/config-v1.1.xml".alias = mkConfigFile domain;
})
cfg.domains);
};
};
}