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;;; wifi-bluetooth-conf.el --- Configuration to manage wifi and bluetooth -*- lexical-binding: t; -*-
;; Copyright (C) 2021 李俊緯
;; Author: 李俊緯 <mmemmew@gmail.com>
;; Keywords: comm, hardware, games, unix
;; This program 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.
;; This program 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Configuration to manage wifi and bluetooth.
;;; Code:
;;;###autoload
(defvar durand-wifi-on-p nil
"If WIFI is on or not.
This is defined in \"/Users/durand/.emacs.d/view-conf.el\"")
;;;###autoload
(defvar durand-bluetooth-on-p nil
"If BLUETOOTH is on or not.
This is defined in \"/Users/durand/.emacs.d/view-conf.el\"")
;;;###autoload
(defun durand-wifi-filter (proc output)
"Filter function to set the wifi variable.
This should only be used for the process \"durand-wifi\".
This is defined in \"/Users/durand/.emacs.d/view-conf.el\""
(cond
((string= (process-name proc) "durand-wifi"))
((user-error "Filter function associated with a wrong process.")))
(setq durand-wifi-on-p (string-match "On$" output)))
;;;###autoload
(defun durand-bluetooth-filter (proc output)
"Filter function to set the bluetooth variable.
This should only be used for the process \"durand-bluetooth\".
This is defined in \"/Users/durand/.emacs.d/view-conf.el\""
(cond
((string= (process-name proc) "durand-bluetooth"))
((user-error "Filter function associated with a wrong process.")))
(setq durand-bluetooth-on-p (string-match "1" output)))
;;;###autoload
(defun durand-wifi-toggle ()
"Check if WIFI is enabled, then ask to toggle WIFI."
(interactive)
(make-process
:name "durand-wifi"
:buffer nil
:command '("networksetup" "-getairportpower" "en0")
:filter #'durand-wifi-filter
:sentinel #'ignore)
(accept-process-output (get-process "durand-wifi"))
(let* ((prompt (format "WIFI is %s. Do you want to turn WIFI %s"
(cond (durand-wifi-on-p "on")
("off"))
(cond (durand-wifi-on-p "off?")
("on?"))))
(decision (y-or-n-p prompt)))
(cond
(decision
(let ((new-state (cond (durand-wifi-on-p "off")
("on"))))
(make-process
:name "durand-toggle-wifi"
:buffer nil
:command (list
"networksetup" "-setairportpower"
"en0" new-state)
:sentinel #'ignore
:filter #'ignore)
(message "WIFI turned %s" new-state))))))
;;;###autoload
(defun durand-bluetooth-toggle ()
"Check if BLUETOOTH is enabled, then ask to toggle BLUETOOTH."
(interactive)
(make-process
:name "durand-bluetooth"
:buffer nil
:command '("blueutil" "-p")
:filter #'durand-bluetooth-filter
:sentinel 'ignore)
(accept-process-output (get-process "durand-bluetooth"))
(let* ((prompt (format "BLUETOOTH is %s. Do you want to turn BLUETOOTH %s"
(cond (durand-bluetooth-on-p "on")
("off"))
(cond (durand-bluetooth-on-p "off?")
("on?"))))
(decision (y-or-n-p prompt)))
(cond
(decision
(let ((new-state (cond (durand-bluetooth-on-p "0")
("1"))))
(make-process
:name "durand-toggle-bluetooth"
:buffer nil
:command (list "blueutil" "-p" new-state)
:sentinel 'ignore
:filter 'ignore)
(message "BLUETOOTH turned %s"
(cond (durand-bluetooth-on-p "off")
("on"))))))))
;;;###autoload
(defconst durand-wifi-executable
"/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport"
"The executable to manage some WIFI settings.")
;;;###autoload
(defconst durand-wifi-bluetooth-buffer
"*durand-wifi-bluetooth*"
"The buffer to accept outputs from commands managing WIFI or BLUETOOTH.")
;;;###autoload
(defun durand-wifi-list-ports (&optional arg)
"List available wifi networks.
If ARG is non-nil, then list the currently connected port."
(interactive "P")
(cond
((and (get-buffer durand-wifi-bluetooth-buffer)
(buffer-live-p (get-buffer durand-wifi-bluetooth-buffer)))
(kill-buffer durand-wifi-bluetooth-buffer)))
(cond ((null arg)
(make-process
:name "durand-wifi-list-ports"
:buffer durand-wifi-bluetooth-buffer
:command (list durand-wifi-executable "-I")
:sentinel #'durand-wifi-list-sentinel))
((make-process
:name "durand-wifi-list-ports"
:buffer durand-wifi-bluetooth-buffer
:command (list durand-wifi-executable "-s")
:sentinel #'durand-wifi-list-sentinel) )))
;;;###autoload
(defvar durand-wifi-ssid-machine-alist
(list
(cons "20-1" "wifi-2")
(cons "1-20-4F" "wifi-4")
(cons "1-20-4F_2EX" "wifi-4")
(cons "20123456" "wifi-20123456")
(cons "20123456_2EX" "wifi-20123456")
(cons "20123456_3EX" "wifi-20123456"))
"A list of associations between the SSID of WIFI and the
machine name that we can use to search for the password in my
secret file.")
;;;###autoload
(defvar durand-wifi-scanned-ssids nil
"The variable that holds the list of SSIDs of WIFI ports found
during the scan.")
;;;###autoload
(defvar durand-wifi-join-history nil
"The variable that holds the history of WIFI ports joined.")
;;;###autoload
(defun durand-wifi-join-port (port &optional pwd)
"Join PORT.
If PWD is non-nil, use that as the password."
(interactive (let ((po (completing-read
"Port to join: " durand-wifi-scanned-ssids
nil nil nil 'durand-wifi-join-history))
(pwd (read-string "Password: ")))
(cond ((and pwd (not (string= pwd "")))
(list po pwd))
((list po)))))
(cond
(pwd)
((let ((search-result
(alist-get port
durand-wifi-ssid-machine-alist
nil nil #'string=)))
(cond
(search-result
(setq
pwd
(funcall
(plist-get
(car (auth-source-search :host search-result))
:secret))))))))
(make-process
:name "durand-wifi-join-port"
:buffer durand-wifi-bluetooth-buffer
:command (append
(list "networksetup" "setairportnetwork" "en0"
port)
(cond ((and pwd (not (string= pwd "")))
(list pwd))))
:filter #'durand-wifi-join-filter))
;;;###autoload
(defun durand-wifi-list-sentinel (process status)
"Extract and message the information about available WIFI's SSID's.
PROCESS should have the name \"durand-wifi-list-ports\".
This only does something when STATUS is the string \"finished\\n\"."
(cond ((string-equal (process-name process) "durand-wifi-list-ports"))
((error "The list sentinel is applied to a wrong process: %S"
process)))
(let (first-var)
(cond ((string-equal status "finished\n")
(with-current-buffer durand-wifi-bluetooth-buffer
(goto-char (point-min))
(cond ((re-search-forward "AirPort: Off" nil t)
(message "Wifi is not enabled."))
((re-search-forward "\\s-+SSID" (line-end-position) t)
(setq first-var t)
(setq durand-wifi-scanned-ssids nil)
(forward-line 1)
(let ((start 0))
(while (re-search-forward "\\S-" (line-end-position) t)
(forward-char -1)
(setq start (point))
(re-search-forward "\\s-" (line-end-position) t)
(forward-char -1)
(setq durand-wifi-scanned-ssids
(cons (buffer-substring-no-properties
start (point))
durand-wifi-scanned-ssids))
(forward-line 1))
(erase-buffer)
(goto-char (point-min))
(insert (string-join durand-wifi-scanned-ssids (string 10)))
(goto-char (point-min))))
((re-search-forward "\\s-+SSID: " nil t)
(message (buffer-substring-no-properties
(point) (line-end-position))))))
(cond (first-var
(display-buffer durand-wifi-bluetooth-buffer
'((display-buffer-in-side-window)
(side . bottom)
(window-height . #'durand-fit-window-to-buffer-with-max)))
(with-current-buffer durand-wifi-bluetooth-buffer
(fit-window-to-buffer
(get-buffer-window (current-buffer))
(floor (* durand-window-max-height
(frame-height
(window-frame
(get-buffer-window (current-buffer))))))))))))))
;;;###autoload
(defun durand-wifi-join-filter (proc output)
"Message the OUTPUT of the PROCESS."
(cond ((string= (process-name proc) "durand-wifi-join-port"))
((error "The join filter is applied to a wrong process: %S"
proc)))
(message output))
(define-key global-map (vector 3 ?w ?w) #'durand-wifi-toggle)
(define-key global-map (vector 3 ?w ?b) #'durand-bluetooth-toggle)
(define-key global-map (vector 3 ?w ?l) #'durand-wifi-list-ports)
(define-key global-map (vector 3 ?w ?j) #'durand-wifi-join-port)
;; Control the display of the buffer
;; (setq display-buffer-alist
;; (delete (assoc durand-wifi-bluetooth-buffer display-buffer-alist #'string-match)
;; display-buffer-alist))
;; (cond
;; ((assoc durand-wifi-bluetooth-buffer display-buffer-alist #'string-match)
;; (setcdr (assoc durand-wifi-bluetooth-buffer
;; display-buffer-alist #'string-match)
;; '((display-buffer-at-bottom)
;; (window-height . #'durand-fit-window-to-buffer-with-max))))
;; (t
;; (add-to-list 'display-buffer-alist
;; `(,(rx-to-string `(seq bos ,durand-wifi-bluetooth-buffer eos))
;; (display-buffer-at-bottom)
;; (window-height . #'durand-fit-window-to-buffer-with-max)))))
(provide 'wifi-bluetooth-conf)
;;; wifi-bluetooth-conf.el ends here
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