1
0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-12-13 09:32:47 +00:00
emacs/lisp/erc/erc-notify.el
Paul Eggert bc511a64f6 Prefer HTTPS to FTP and HTTP in documentation
Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November.  Change these FTP URLs to https://ftp.gnu.org
instead.  Make similar changes for URLs to other organizations moving
away from FTP.  Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
2017-09-13 15:54:37 -07:00

259 lines
8.7 KiB
EmacsLisp

;;; erc-notify.el --- Online status change notification -*- lexical-binding:t -*-
;; Copyright (C) 2002-2004, 2006-2017 Free Software Foundation, Inc.
;; Author: Mario Lang <mlang@lexx.delysid.org>
;; Maintainer: emacs-devel@gnu.org
;; Keywords: comm
;; This file is part of GNU Emacs.
;; GNU Emacs 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 Emacs 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 Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This module defines a new command, /NOTIFY
;; See the docstring of `erc-cmd-NOTIFY' for details.
;;; Code:
(require 'erc)
(require 'erc-networks)
(eval-when-compile (require 'pcomplete))
;;;; Customizable variables
(defgroup erc-notify nil
"Track online status of certain nicknames."
:group 'erc)
(defcustom erc-notify-list nil
"List of nicknames you want to be notified about online/offline
status change."
:group 'erc-notify
:type '(repeat string))
(defcustom erc-notify-interval 60
"Time interval (in seconds) for checking online status of notified
people."
:group 'erc-notify
:type 'integer)
(defcustom erc-notify-signon-hook nil
"Hook run after someone on `erc-notify-list' has signed on.
Two arguments are passed to the function, SERVER and NICK, both
strings."
:group 'erc-notify
:type 'hook
:options '(erc-notify-signon))
(defcustom erc-notify-signoff-hook nil
"Hook run after someone on `erc-notify-list' has signed off.
Two arguments are passed to the function, SERVER and NICK, both
strings."
:group 'erc-notify
:type 'hook
:options '(erc-notify-signoff))
(defun erc-notify-signon (server nick)
(message "%s signed on at %s" nick server))
(defun erc-notify-signoff (server nick)
(message "%s signed off from %s" nick server))
;;;; Internal variables
(defvar erc-last-ison nil
"Last ISON information received through `erc-notify-timer'.")
(make-variable-buffer-local 'erc-last-ison)
(defvar erc-last-ison-time 0
"Last time ISON was sent to the server in `erc-notify-timer'.")
(make-variable-buffer-local 'erc-last-ison-time)
;;;; Setup
(defun erc-notify-install-message-catalogs ()
(erc-define-catalog
'english
'((notify_current . "Notified people online: %l")
(notify_list . "Current notify list: %l")
(notify_on . "Detected %n on IRC network %m")
(notify_off . "%n has left IRC network %m"))))
;;;###autoload (autoload 'erc-notify-mode "erc-notify" nil t)
(define-erc-module notify nil
"Periodically check for the online status of certain users and report
changes."
((add-hook 'erc-timer-hook 'erc-notify-timer)
(add-hook 'erc-server-JOIN-functions 'erc-notify-JOIN)
(add-hook 'erc-server-NICK-functions 'erc-notify-NICK)
(add-hook 'erc-server-QUIT-functions 'erc-notify-QUIT))
((remove-hook 'erc-timer-hook 'erc-notify-timer)
(remove-hook 'erc-server-JOIN-functions 'erc-notify-JOIN)
(remove-hook 'erc-server-NICK-functions 'erc-notify-NICK)
(remove-hook 'erc-server-QUIT-functions 'erc-notify-QUIT)))
;;;; Timer handler
(defun erc-notify-timer (now)
(when (and erc-server-connected
erc-notify-list
(> (erc-time-diff
erc-last-ison-time now)
erc-notify-interval))
(erc-once-with-server-event
303
(lambda (proc parsed)
(let* ((server (erc-response.sender parsed))
(ison-list (delete "" (split-string
(erc-response.contents parsed))))
(new-list ison-list)
(old-list (erc-with-server-buffer erc-last-ison)))
(while new-list
(when (not (erc-member-ignore-case (car new-list) old-list))
(run-hook-with-args 'erc-notify-signon-hook server (car new-list))
(erc-display-message
parsed 'notice proc
'notify_on ?n (car new-list) ?m (erc-network-name)))
(setq new-list (cdr new-list)))
(while old-list
(when (not (erc-member-ignore-case (car old-list) ison-list))
(run-hook-with-args 'erc-notify-signoff-hook server (car old-list))
(erc-display-message
parsed 'notice proc
'notify_off ?n (car old-list) ?m (erc-network-name)))
(setq old-list (cdr old-list)))
(setq erc-last-ison ison-list)
t)))
(erc-server-send
(concat "ISON " (mapconcat 'identity erc-notify-list " ")))
(setq erc-last-ison-time now)))
(defun erc-notify-JOIN (proc parsed)
"Check if channel joiner is on `erc-notify-list' and not on `erc-last-ison'.
If this condition is satisfied, produce a notify_on message and add the nick
to `erc-last-ison' to prevent any further notifications."
(let ((nick (erc-extract-nick (erc-response.sender parsed))))
(when (and (erc-member-ignore-case nick erc-notify-list)
(not (erc-member-ignore-case nick erc-last-ison)))
(add-to-list 'erc-last-ison nick)
(run-hook-with-args 'erc-notify-signon-hook
(or erc-server-announced-name erc-session-server)
nick)
(erc-display-message
parsed 'notice proc
'notify_on ?n nick ?m (erc-network-name)))
nil))
(defun erc-notify-NICK (proc parsed)
"Check if new nick is on `erc-notify-list' and not on `erc-last-ison'.
If this condition is satisfied, produce a notify_on message and add the nick
to `erc-last-ison' to prevent any further notifications."
(let ((nick (erc-response.contents parsed)))
(when (and (erc-member-ignore-case nick erc-notify-list)
(not (erc-member-ignore-case nick erc-last-ison)))
(add-to-list 'erc-last-ison nick)
(run-hook-with-args 'erc-notify-signon-hook
(or erc-server-announced-name erc-session-server)
nick)
(erc-display-message
parsed 'notice proc
'notify_on ?n nick ?m (erc-network-name)))
nil))
(defun erc-notify-QUIT (proc parsed)
"Check if quitter is on `erc-notify-list' and on `erc-last-ison'.
If this condition is satisfied, produce a notify_off message and remove the
nick from `erc-last-ison' to prevent any further notifications."
(let ((nick (erc-extract-nick (erc-response.sender parsed))))
(when (and (erc-member-ignore-case nick erc-notify-list)
(erc-member-ignore-case nick erc-last-ison))
(setq erc-last-ison (erc-delete-if
(let ((nick-down (erc-downcase nick)))
(lambda (el)
(string= nick-down (erc-downcase el))))
erc-last-ison))
(run-hook-with-args 'erc-notify-signoff-hook
(or erc-server-announced-name erc-session-server)
nick)
(erc-display-message
parsed 'notice proc
'notify_off ?n nick ?m (erc-network-name)))
nil))
;;;; User level command
;;;###autoload
(defun erc-cmd-NOTIFY (&rest args)
"Change `erc-notify-list' or list current notify-list members online.
Without args, list the current list of notified people online,
with args, toggle notify status of people."
(cond
((null args)
;; Print current notified people (online)
(let ((ison (erc-with-server-buffer erc-last-ison)))
(if (not ison)
(erc-display-message
nil 'notice 'active "No ison-list yet!")
(erc-display-message
nil 'notice 'active
'notify_current ?l ison))))
((string= (car args) "-l")
(erc-display-message nil 'notice 'active
'notify_list ?l (mapconcat 'identity erc-notify-list
" ")))
(t
(while args
(if (erc-member-ignore-case (car args) erc-notify-list)
(progn
(setq erc-notify-list (delete (car args) erc-notify-list))
;; Remove the nick from the value of erc-last-ison in
;; every server buffer. This prevents seeing a signoff
;; notification for a nick that you have just _removed_
;; from your notify list.
(dolist (buf (erc-buffer-list))
(with-current-buffer buf
(if (erc-server-buffer-p)
(setq erc-last-ison (delete (car args) erc-last-ison))))))
(setq erc-notify-list (cons (erc-string-no-properties (car args))
erc-notify-list)))
(setq args (cdr args)))
(erc-display-message
nil 'notice 'active
'notify_list ?l (mapconcat 'identity erc-notify-list " "))))
t)
(autoload 'pcomplete-erc-all-nicks "erc-pcomplete")
;; "--" is not a typo.
(declare-function pcomplete--here "pcomplete"
(&optional form stub paring form-only))
;;;###autoload
(defun pcomplete/erc-mode/NOTIFY ()
(require 'pcomplete)
(pcomplete-here (pcomplete-erc-all-nicks)))
(erc-notify-install-message-catalogs)
(provide 'erc-notify)
;;; erc-notify.el ends here
;;
;; Local Variables:
;; indent-tabs-mode: t
;; tab-width: 8
;; End: