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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.davmail;
configType = with types;
oneOf [ (attrsOf configType) str int bool ] // {
description = "davmail config type (str, int, bool or attribute set thereof)";
};
toStr = val: if isBool val then boolToString val else toString val;
linesForAttrs = attrs: concatMap (name: let value = attrs.${name}; in
if isAttrs value
then map (line: name + "." + line) (linesForAttrs value)
else [ "${name}=${toStr value}" ]
) (attrNames attrs);
configFile = pkgs.writeText "davmail.properties" (concatStringsSep "\n" (linesForAttrs cfg.config));
in
{
options.services.davmail = {
enable = mkEnableOption (lib.mdDoc "davmail, an MS Exchange gateway");
url = mkOption {
type = types.str;
description = lib.mdDoc "Outlook Web Access URL to access the exchange server, i.e. the base webmail URL.";
example = "https://outlook.office365.com/EWS/Exchange.asmx";
};
config = mkOption {
type = configType;
default = {};
description = lib.mdDoc ''
Davmail configuration. Refer to
<http://davmail.sourceforge.net/serversetup.html>
and <http://davmail.sourceforge.net/advanced.html>
for details on supported values.
'';
example = literalExpression ''
{
davmail.allowRemote = true;
davmail.imapPort = 55555;
davmail.bindAddress = "10.0.1.2";
davmail.smtpSaveInSent = true;
davmail.folderSizeLimit = 10;
davmail.caldavAutoSchedule = false;
log4j.logger.rootLogger = "DEBUG";
}
'';
};
};
config = mkIf cfg.enable {
services.davmail.config = {
davmail = mapAttrs (name: mkDefault) {
server = true;
disableUpdateCheck = true;
logFilePath = "/var/log/davmail/davmail.log";
logFileSize = "1MB";
mode = "auto";
url = cfg.url;
caldavPort = 1080;
imapPort = 1143;
ldapPort = 1389;
popPort = 1110;
smtpPort = 1025;
};
log4j = {
logger.davmail = mkDefault "WARN";
logger.httpclient.wire = mkDefault "WARN";
logger.org.apache.commons.httpclient = mkDefault "WARN";
rootLogger = mkDefault "WARN";
};
};
systemd.services.davmail = {
description = "DavMail POP/IMAP/SMTP Exchange Gateway";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "simple";
ExecStart = "${pkgs.davmail}/bin/davmail ${configFile}";
Restart = "on-failure";
DynamicUser = "yes";
LogsDirectory = "davmail";
CapabilityBoundingSet = [ "" ];
DeviceAllow = [ "" ];
LockPersonality = true;
NoNewPrivileges = true;
PrivateDevices = true;
PrivateTmp = true;
PrivateUsers = true;
ProtectClock = true;
ProtectControlGroups = true;
ProtectHome = true;
ProtectSystem = "strict";
ProtectHostname = true;
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
ProtectProc = "invisible";
RemoveIPC = true;
RestrictAddressFamilies = [ "AF_INET" "AF_INET6" ];
RestrictNamespaces = true;
RestrictRealtime = true;
RestrictSUIDSGID = true;
SystemCallArchitectures = "native";
SystemCallFilter = "@system-service";
SystemCallErrorNumber = "EPERM";
UMask = "0077";
};
};
environment.systemPackages = [ pkgs.davmail ];
};
}
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