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{ config, pkgs, ... }:
with pkgs.lib;
let
startingDependency = if config.services.gw6c.enable then "gw6c" else "network-interfaces";
cfg = config.services.dovecot;
dovecotConf =
''
base_dir = /var/run/dovecot/
protocols = imap imaps pop3 pop3s
''
+ (if cfg.sslServerCert!="" then
''
ssl_cert_file = ${cfg.sslServerCert}
ssl_key_file = ${cfg.sslServerKey}
ssl_ca_file = ${cfg.sslCACert}
'' else ''
ssl_disable = yes
disable_plaintext_auth = no
'')
+ ''
login_user = ${cfg.user}
login_chroot = no
mail_location = maildir:/var/spool/mail/%u
maildir_copy_with_hardlinks = yes
auth default {
mechanisms = plain login
userdb passwd {
}
passdb pam {
}
user = root
}
auth_debug = yes
auth_verbose = yes
pop3_uidl_format = %08Xv%08Xu
log_path = /var/log/dovecot.log
'';
confFile = pkgs.writeText "dovecot.conf" dovecotConf;
in
{
###### interface
options = {
services.dovecot = {
enable = mkOption {
default = false;
description = "Whether to enable the Dovecot POP3/IMAP server.";
};
user = mkOption {
default = "dovecot";
description = "Dovecot user name.";
};
group = mkOption {
default = "dovecot";
description = "Dovecot group name.";
};
sslServerCert = mkOption {
default = "";
description = "Server certificate";
};
sslCACert = mkOption {
default = "";
description = "CA certificate used by the server certificate.";
};
sslServerKey = mkOption {
default = "";
description = "Server key.";
};
};
};
###### implementation
config = mkIf config.services.dovecot.enable {
security.pam.services = [ { name = "dovecot"; } ];
users.extraUsers = singleton
{ name = cfg.user;
uid = config.ids.uids.dovecot;
description = "Dovecot user";
group = cfg.group;
};
users.extraGroups = singleton
{ name = cfg.group;
gid = config.ids.gids.dovecot;
};
jobs.dovecot =
{ description = "Dovecot IMAP/POP3 server";
startOn = "started ${startingDependency}";
preStart =
''
${pkgs.coreutils}/bin/mkdir -p /var/run/dovecot /var/run/dovecot/login
${pkgs.coreutils}/bin/chown -R ${cfg.user}.${cfg.group} /var/run/dovecot
'';
exec = "${pkgs.dovecot}/sbin/dovecot -F -c ${confFile}";
};
};
}
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