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Diffstat (limited to 'gnu/installer/newt/network.scm')
| -rw-r--r-- | gnu/installer/newt/network.scm | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/gnu/installer/newt/network.scm b/gnu/installer/newt/network.scm new file mode 100644 index 0000000000..f263b7df9d --- /dev/null +++ b/gnu/installer/newt/network.scm @@ -0,0 +1,173 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com> +;;; +;;; 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 network) + #:use-module (gnu installer connman) + #:use-module (gnu installer steps) + #:use-module (gnu installer utils) + #:use-module (gnu installer newt ethernet) + #:use-module (gnu installer newt page) + #:use-module (gnu installer newt wifi) + #:use-module (guix i18n) + #:use-module (srfi srfi-1) + #:use-module (srfi srfi-11) + #:use-module (srfi srfi-34) + #:use-module (srfi srfi-35) + #:use-module (newt) + #:export (run-network-page)) + +;; Maximum length of a technology name. +(define technology-name-max-length (make-parameter 20)) + +(define (technology->text technology) + "Return a string describing the given TECHNOLOGY." + (let* ((name (technology-name technology)) + (padded-name (string-pad-right name + (technology-name-max-length)))) + (format #f "~a~%" padded-name))) + +(define (run-technology-page) + "Run a page to ask the user which technology shall be used to access +Internet and return the selected technology. For now, only technologies with +\"ethernet\" or \"wifi\" types are supported." + (define (technology-items) + (filter (lambda (technology) + (let ((type (technology-type technology))) + (or + (string=? type "ethernet") + (string=? type "wifi")))) + (connman-technologies))) + + (let ((items (technology-items))) + (if (null? items) + (case (choice-window + (G_ "Internet access") + (G_ "Continue") + (G_ "Exit") + (G_ "The install process requires an internet access, but no \ +network device were found. Do you want to continue anyway?")) + ((1) (raise + (condition + (&installer-step-break)))) + ((2) (raise + (condition + (&installer-step-abort))))) + (run-listbox-selection-page + #:info-text (G_ "The install process requires an internet access.\ + Please select a network device.") + #:title (G_ "Internet access") + #:listbox-items items + #:listbox-item->text technology->text + #:button-text (G_ "Exit") + #:button-callback-procedure + (lambda _ + (raise + (condition + (&installer-step-abort)))))))) + +(define (find-technology-by-type technologies type) + "Find and return a technology with the given TYPE in TECHNOLOGIES list." + (find (lambda (technology) + (string=? (technology-type technology) + type)) + technologies)) + +(define (wait-technology-powered technology) + "Wait and display a progress bar until the given TECHNOLOGY is powered." + (let ((name (technology-name technology)) + (full-value 5)) + (run-scale-page + #:title (G_ "Powering technology") + #:info-text (format #f "Waiting for technology ~a to be powered." name) + #:scale-full-value full-value + #:scale-update-proc + (lambda (value) + (let* ((technologies (connman-technologies)) + (type (technology-type technology)) + (updated-technology + (find-technology-by-type technologies type)) + (technology-powered? updated-technology)) + (sleep 1) + (if technology-powered? + full-value + (+ value 1))))))) + +(define (wait-service-online) + "Display a newt scale until connman detects an Internet access. Do +FULL-VALUE tentatives, spaced by 1 second." + (let* ((full-value 5)) + (run-scale-page + #:title (G_ "Checking connectivity") + #:info-text (G_ "Waiting internet access is established.") + #:scale-full-value full-value + #:scale-update-proc + (lambda (value) + (sleep 1) + (if (connman-online?) + full-value + (+ value 1)))) + (unless (connman-online?) + (run-error-page + (G_ "The selected network does not provide an Internet \ +access, please try again.") + (G_ "Connection error")) + (raise + (condition + (&installer-step-abort)))))) + +(define (run-network-page) + "Run a page to allow the user to configure connman so that it can access the +Internet." + (define network-steps + (list + ;; Ask the user to choose between ethernet and wifi technologies. + (installer-step + (id 'select-technology) + (compute + (lambda _ + (run-technology-page)))) + ;; Enable the previously selected technology. + (installer-step + (id 'power-technology) + (compute + (lambda (result _) + (let ((technology (result-step result 'select-technology))) + (connman-enable-technology technology) + (wait-technology-powered technology))))) + ;; Propose the user to connect to one of the service available for the + ;; previously selected technology. + (installer-step + (id 'connect-service) + (compute + (lambda (result _) + (let* ((technology (result-step result 'select-technology)) + (type (technology-type technology))) + (cond + ((string=? "wifi" type) + (run-wifi-page)) + ((string=? "ethernet" type) + (run-ethernet-page))))))) + ;; Wait for connman status to switch to 'online, which means it can + ;; access Internet. + (installer-step + (id 'wait-online) + (compute (lambda _ + (wait-service-online)))))) + (run-installer-steps + #:steps network-steps + #:rewind-strategy 'start)) |