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;;; Consfigurator -- Lisp declarative configuration management system
;;; Copyright (C) 2021 David Bremner <david@tethera.net>
;;; Copyright (C) 2021 Sean Whitton <spwhitton@spwhitton.name>
;;; This file 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, or (at your option)
;;; any later version.
;;; This file 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/>.
(in-package :consfigurator.property.user)
(named-readtables:in-readtable :consfigurator)
(defprop has-account :posix (username)
"Ensure there is an account for USERNAME."
(:desc #?"Account for ${username}")
(:check
(user-exists username))
(:apply
(assert-euid-root)
(run "useradd" "-m" username)))
(defprop has-login-shell :posix (username shell)
"Ensures that USERNAME has login shell SHELL."
(:desc #?"${username} has login shell ${shell}")
(:check
(string= (passwd-entry 6 username) shell))
(:apply
(file:contains-lines "/etc/shells" shell)
(mrun "chsh" "--shell" shell username)))
(defun passwd-entry (n username-or-uid)
(let ((u (etypecase username-or-uid
(string username-or-uid)
(number (write-to-string username-or-uid)))))
(nth n (split-string (stripln (mrun "getent" "passwd" u))
:separator ":"))))
(defun user-exists (username)
(zerop (run :for-exit "getent" "passwd" username)))
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