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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2019 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu installer newt user)
#:use-module (gnu installer user)
#:use-module (gnu installer newt page)
#:use-module (gnu installer newt utils)
#:use-module (gnu installer utils)
#:use-module (guix i18n)
#:use-module (newt)
#:use-module (ice-9 match)
#:use-module (ice-9 receive)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:export (run-user-page))
(define* (run-user-add-page #:key (name "") (real-name "")
(home-directory ""))
"Run a form to enter the user name, home directory, and password. Use NAME,
REAL-NAME, and HOME-DIRECTORY as the initial values in the form."
(define (pad-label label)
(string-pad-right label 25))
(let* ((label-name
(make-label -1 -1 (pad-label (G_ "Name"))))
(label-real-name
(make-label -1 -1 (pad-label (G_ "Real name"))))
(label-home-directory
(make-label -1 -1 (pad-label (G_ "Home directory"))))
(label-password
(make-label -1 -1 (pad-label (G_ "Password"))))
(entry-width 35)
(entry-name (make-entry -1 -1 entry-width
#:initial-value name))
(entry-real-name (make-entry -1 -1 entry-width
#:initial-value real-name))
(entry-home-directory (make-entry -1 -1 entry-width
#:initial-value home-directory))
(password-visible-cb
(make-checkbox -1 -1 (G_ "Show") #\space "x "))
(entry-password (make-entry -1 -1 entry-width
#:flags (logior FLAG-PASSWORD
FLAG-SCROLL)))
(entry-grid (make-grid 3 5))
(button-grid (make-grid 1 1))
(ok-button (make-button -1 -1 (G_ "OK")))
(grid (make-grid 1 2))
(title (G_ "User creation"))
(set-entry-grid-field
(cut set-grid-field entry-grid <> <> GRID-ELEMENT-COMPONENT <>))
(form (make-form)))
(set-entry-grid-field 0 0 label-name)
(set-entry-grid-field 1 0 entry-name)
(set-entry-grid-field 0 1 label-real-name)
(set-entry-grid-field 1 1 entry-real-name)
(set-entry-grid-field 0 2 label-home-directory)
(set-entry-grid-field 1 2 entry-home-directory)
(set-entry-grid-field 0 3 label-password)
(set-entry-grid-field 1 3 entry-password)
(set-grid-field entry-grid
2 3
GRID-ELEMENT-COMPONENT
password-visible-cb
#:pad-left 1)
(set-grid-field button-grid 0 0 GRID-ELEMENT-COMPONENT ok-button)
(add-component-callback
entry-name
(lambda ()
(set-entry-text entry-home-directory
(string-append "/home/" (entry-value entry-name)))
(when (string-null? (entry-value entry-real-name))
(set-entry-text entry-real-name
(string-titlecase (entry-value entry-name))))))
(add-component-callback
password-visible-cb
(lambda ()
(set-entry-flags entry-password
FLAG-PASSWORD
FLAG-ROLE-TOGGLE)))
(add-components-to-form form
label-name label-real-name
label-home-directory label-password
entry-name entry-real-name
entry-home-directory entry-password
password-visible-cb
ok-button)
(make-wrapped-grid-window (vertically-stacked-grid
GRID-ELEMENT-SUBGRID entry-grid
GRID-ELEMENT-SUBGRID button-grid)
title)
(let ((error-page
(lambda ()
(run-error-page (G_ "Empty inputs are not allowed.")
(G_ "Empty input")))))
(receive (exit-reason argument)
(run-form form)
(dynamic-wind
(const #t)
(lambda ()
(when (eq? exit-reason 'exit-component)
(cond
((components=? argument ok-button)
(let ((name (entry-value entry-name))
(real-name (entry-value entry-real-name))
(home-directory (entry-value entry-home-directory))
(password (entry-value entry-password)))
(if (or (string=? name "")
(string=? home-directory ""))
(begin
(error-page)
(run-user-add-page))
(let ((password (confirm-password password)))
(if password
(user
(name name)
(real-name real-name)
(home-directory home-directory)
(password (make-secret password)))
(run-user-add-page #:name name
#:real-name real-name
#:home-directory
home-directory)))))))))
(lambda ()
(destroy-form-and-pop form)))))))
(define* (confirm-password password #:optional (try-again (const #f)))
"Ask the user to confirm PASSWORD, a possibly empty string. Call TRY-AGAIN,
a thunk, if the confirmation doesn't match PASSWORD, and return its result."
(define confirmation
(run-input-page (G_ "Please confirm the password.")
(G_ "Password confirmation required")
#:allow-empty-input? #t
#:input-visibility-checkbox? #t))
(if (string=? password confirmation)
password
(begin
(run-error-page
(G_ "Password mismatch, please try again.")
(G_ "Password error"))
(try-again))))
(define (run-root-password-page)
(define password
;; TRANSLATORS: Leave "root" untranslated: it refers to the name of the
;; system administrator account.
(run-input-page (G_ "Please choose a password for the system \
administrator (\"root\").")
(G_ "System administrator password")
#:input-visibility-checkbox? #t))
(confirm-password password run-root-password-page))
(define (run-user-page)
(define (run users)
(let* ((listbox (make-listbox
-1 -1 10
(logior FLAG-SCROLL FLAG-BORDER)))
(info-textbox
(make-reflowed-textbox
-1 -1
(G_ "Please add at least one user to system\
using the 'Add' button.")
40 #:flags FLAG-BORDER))
(add-button (make-compact-button -1 -1 (G_ "Add")))
(del-button (make-compact-button -1 -1 (G_ "Delete")))
(listbox-button-grid
(apply
vertically-stacked-grid
GRID-ELEMENT-COMPONENT add-button
`(,@(if (null? users)
'()
(list GRID-ELEMENT-COMPONENT del-button)))))
(ok-button (make-button -1 -1 (G_ "OK")))
(exit-button (make-button -1 -1 (G_ "Exit")))
(title (G_ "User creation"))
(grid
(vertically-stacked-grid
GRID-ELEMENT-COMPONENT info-textbox
GRID-ELEMENT-SUBGRID (horizontal-stacked-grid
GRID-ELEMENT-COMPONENT listbox
GRID-ELEMENT-SUBGRID listbox-button-grid)
GRID-ELEMENT-SUBGRID (horizontal-stacked-grid
GRID-ELEMENT-COMPONENT ok-button
GRID-ELEMENT-COMPONENT exit-button)))
(sorted-users (sort users (lambda (a b)
(string<= (user-name a)
(user-name b)))))
(listbox-elements
(map
(lambda (user)
`((key . ,(append-entry-to-listbox listbox
(user-name user)))
(user . ,user)))
sorted-users))
(form (make-form)))
(add-form-to-grid grid form #t)
(make-wrapped-grid-window grid title)
(if (null? users)
(set-current-component form add-button)
(set-current-component form ok-button))
(receive (exit-reason argument)
(run-form-with-clients form '(add-users))
(dynamic-wind
(const #t)
(lambda ()
(match exit-reason
('exit-component
(cond
((components=? argument add-button)
(run (cons (run-user-add-page) users)))
((components=? argument del-button)
(let* ((current-user-key (current-listbox-entry listbox))
(users
(map (cut assoc-ref <> 'user)
(remove (lambda (element)
(equal? (assoc-ref element 'key)
current-user-key))
listbox-elements))))
(run users)))
((components=? argument ok-button)
(when (null? users)
(run-error-page (G_ "Please create at least one user.")
(G_ "No user"))
(run users))
(reverse users))
((components=? argument exit-button)
(abort-to-prompt 'installer-step 'abort))))
('exit-fd-ready
;; Read the complete user list at once.
(match argument
((('user ('name names) ('real-name real-names)
('home-directory homes) ('password passwords))
..1)
(map (lambda (name real-name home password)
(user (name name) (real-name real-name)
(home-directory home)
(password (make-secret password))))
names real-names homes passwords))))))
(lambda ()
(destroy-form-and-pop form))))))
;; Add a "root" user simply to convey the root password.
(cons (user (name "root")
(home-directory "/root")
(password (make-secret (run-root-password-page))))
(run '())))
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