180 lines
6.4 KiB
EmacsLisp
180 lines
6.4 KiB
EmacsLisp
;;; nordvpn.el --- NordVPN interface for Emacs -*- lexical-binding: t -*-
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;;; Copyright (C) 2021 Phundrak
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;; Author: Phundrak <https://phundrak.com>
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;; Maintainer: Phundrak <lucien@phundrak.com>
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;; Homepage: https://labs.phundrak.com/phundrak/nordvpn.el
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;; Version: 0.1.0
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;; Keywords: nordvpn, vpn, convenience
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;; Package-Requires: ((emacs "27") (s "1.12.0") (ido "1.0.1"))
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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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;; 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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;; 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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;;; Commentary:
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;; Functions collection for interacting with NordVPN from Emacs.
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;;; Code:
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(defcustom nordvpn-default-country nil
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"Default country to which NordVPN should connect"
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:type 'string
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:group 'nordvpn)
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(defcustom nordvpn-default-city nil
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"Default city to which NordVPN should connect"
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:type 'string
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:group 'nordvpn)
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(defun nordvpn--cut-weird-prefix (string)
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"Cut the prefix almost always found in NordVPN's returned string
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ending with some Ctrl-M char."
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(replace-regexp-in-string ".*
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"
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""
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string))
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(defun nordvpn--get-list (string)
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"Get a list from NordVPN's output `STRING', such as cities or
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countries."
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(s-split "\n"
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(nordvpn--cut-weird-prefix string)
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t))
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(defun nordvpn--get-countries ()
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"Returns the list of countries offered by NordVPN."
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(nordvpn--get-list (nordvpn--cut-weird-prefix (eshell-command-result "nordvpn countries"))))
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(defun nordvpn--get-country ()
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"Get a country among the ones offered by NordVPN."
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(let ((countries (nordvpn--get-countries))
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(country (ido-completing-read "Country: " countries)))
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(if (null country)
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nordvpn-default-country
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country)))
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(defun nordvpn--get-cities (&optional country)
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"Get the list of cities available in `COUNTRY'. If `COUNTRY' is
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nil, then it will be asked interactively to the user."
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(let ((country (if (null country)
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(nordvpn--get-country)
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country)))
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(nordvpn--get-list (eshell-command-result (format "nordvpn cities %s"
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country)))))
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(defun nordvpn--get-city (&optional country)
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"Get a specific city from the list of cities available for
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`COUNTRY'. If `COUNTRY' is nil, the user will have to choose
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through `nordvpn--get-country'. If the result is nil, the
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function will fallback to `nordvpn-default-country'."
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(let* ((country (if (null country)
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(nordvpn--get-country)
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country))
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(command (format "nordvpn cities %s" country))
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(cities (nordvpn--get-list (eshell-command-result command))))
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(ido-completing-read "City: " cities)))
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(defun nordvpn--get-groups ()
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"Get the list of server groups available."
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(nordvpn--get-list (eshell-command-result "nordvpn groups")))
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(defun nordvpn--get-group ()
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"Select one of the available server groups."
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(ido-completing-read "Group: " (nordvpn--get-groups)))
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(defun nordvpn--get-credentials ()
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"Get user credentials from `auth-source' files."
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(let* ((found (car (auth-source-search :max 1
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:host "nordvpn"
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:require '(:user :secret)
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:create t))))
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(if found
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(list
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(plist-get found :user)
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(let ((password (plist-get found :secret)))
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(while (functionp password)
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(setf password (funcall password)))
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password))
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nil)))
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(defun nordvpn-connect-to-country (&option country)
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"Connect with NordVPN to a specific country. If `COUNTRY' is nil,
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then \"nordvpn c\" is called, otherwise \"nordvpc c `COUNTRY'\"
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is called."
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(message "NordVPN: %s"
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(nordvpn--cut-weird-prefix
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(eshell-command-result
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(if country
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(format "nordvpn c %s" country)
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"nordvpn c")))))
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(defun nordvpn-connect-to-city (city &optinal country)
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"Connect with NordVPN to a specific `CITY'. An additional
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`COUNTRY' may be specified. If no country is provided to the
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function, \"nordvpn c `CITY'\" will be called, otherwise
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\"nordvpn c `COUNTRY' `CITY'\" will be called."
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(message "NordVPN: %s"
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(nordvpn--cut-weird-prefix
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(eshell-command-result
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(if country
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(format "nordvpn c %s %s" country city)
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(format "nordvpn c %s" city))))))
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(defun nordvpn-connect-to-group (group)
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"Connect with NordVPN to the specified `GROUP'."
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(message "NordVPN: %s"
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(nordvpn--cut-weird-prefix
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(eshell-command-result
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(format "nordvpn c %s")))))
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(defun nordvpn-connect (&optional arg)
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"Connect to NordVPN.
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If `ARG' is non nil or if `nordvpn-default-country' is nil, will
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ask the user which country to connect to."
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(interactive "P")
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(nordvpn-connect-to-country (if arg
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(nordvpn--get-country)
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nordvpn-default-country)))
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;; nordvpn-connect-to-city &option country city
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;; C-u nordvpn-connect-to-city &option city country
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(defun nordvpn-disconnect ()
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"Disconnect NordVPN from the current server."
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(interactive)
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(message "NordVPN: %s"
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(nordvpn--cut-weird-prefix (eshell-command-result "nordvpn d"))))
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(defun nordvpn-logout ()
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"Logout from NordVPN."
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(interactive)
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(message "NordVPN: %s"
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(nordvpn--cut-weird-prefix (shell-command-to-string "nordvpn logout"))))
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(defun nordvpn-login ()
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"Log into your NordVPN account. Credentials are read from
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`auth-source' files."
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(interactive)
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(let* ((credentials (nordvpn--get-credentials))
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(username (car credentials))
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(password (cadr credentials))
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(command (format "nordvpn login -u %s -p \"%s\"" username
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password)))
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(message "NordVPN: %s"
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(nordvpn--cut-weird-prefix (shell-command-to-string command)))))
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(provide 'nordvpn)
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;;; nordvpn.el ends here
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