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https://gitlab.com/simple-nixos-mailserver/nixos-mailserver.git
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71 lines
2.7 KiB
Nix
71 lines
2.7 KiB
Nix
# nixos-mailserver: a simple mail server
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# Copyright (C) 2016-2018 Robin Raymond
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>
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{ config, pkgs, lib }:
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let
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cfg = config.mailserver;
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in
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{
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# cert :: PATH
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certificatePath = if cfg.certificateScheme == "manual"
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then cfg.certificateFile
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else if cfg.certificateScheme == "selfsigned"
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then "${cfg.certificateDirectory}/cert-${cfg.fqdn}.pem"
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else if cfg.certificateScheme == "acme" || cfg.certificateScheme == "acme-nginx"
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then "${config.security.acme.certs.${cfg.acmeCertificateName}.directory}/fullchain.pem"
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else throw "unknown certificate scheme";
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# key :: PATH
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keyPath = if cfg.certificateScheme == "manual"
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then cfg.keyFile
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else if cfg.certificateScheme == "selfsigned"
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then "${cfg.certificateDirectory}/key-${cfg.fqdn}.pem"
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else if cfg.certificateScheme == "acme" || cfg.certificateScheme == "acme-nginx"
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then "${config.security.acme.certs.${cfg.acmeCertificateName}.directory}/key.pem"
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else throw "unknown certificate scheme";
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passwordFiles = let
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mkHashFile = name: hash: pkgs.writeText "${builtins.hashString "sha256" name}-password-hash" hash;
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in
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lib.mapAttrs (name: value:
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if value.hashedPasswordFile == null then
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builtins.toString (mkHashFile name value.hashedPassword)
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else value.hashedPasswordFile) cfg.loginAccounts;
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# Appends the LDAP bind password to files to avoid writing this
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# password into the Nix store.
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appendLdapBindPwd = {
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name, file, prefix, suffix ? "", passwordFile, destination
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}: pkgs.writeScript "append-ldap-bind-pwd-in-${name}" ''
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#!${pkgs.stdenv.shell}
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set -euo pipefail
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baseDir=$(dirname ${destination})
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if (! test -d "$baseDir"); then
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mkdir -p $baseDir
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chmod 755 $baseDir
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fi
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cat ${file} > ${destination}
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echo -n '${prefix}' >> ${destination}
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cat ${passwordFile} | tr -d '\n' >> ${destination}
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echo -n '${suffix}' >> ${destination}
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chmod 600 ${destination}
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'';
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}
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