1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
;;; erc-netsplit.el --- Reduce JOIN/QUIT messages on netsplits
;; Copyright (C) 2002-2004, 2006-2015 Free Software Foundation, Inc.
;; Author: Mario Lang <mlang@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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This module hides quit/join messages if a netsplit occurs.
;; To enable, add the following to your init file:
;; (require 'erc-netsplit)
;; (erc-netsplit-mode 1)
;;; Code:
(require 'erc)
(defgroup erc-netsplit nil
"Netsplit detection tries to automatically figure when a
netsplit happens, and filters the QUIT messages. It also keeps
track of netsplits, so that it can filter the JOIN messages on a netjoin too."
:group 'erc)
;;;###autoload (autoload 'erc-netsplit-mode "erc-netsplit")
(define-erc-module netsplit nil
"This mode hides quit/join messages if a netsplit occurs."
((erc-netsplit-install-message-catalogs)
(add-hook 'erc-server-JOIN-functions 'erc-netsplit-JOIN)
(add-hook 'erc-server-MODE-functions 'erc-netsplit-MODE)
(add-hook 'erc-server-QUIT-functions 'erc-netsplit-QUIT)
(add-hook 'erc-timer-hook 'erc-netsplit-timer))
((remove-hook 'erc-server-JOIN-functions 'erc-netsplit-JOIN)
(remove-hook 'erc-server-MODE-functions 'erc-netsplit-MODE)
(remove-hook 'erc-server-QUIT-functions 'erc-netsplit-QUIT)
(remove-hook 'erc-timer-hook 'erc-netsplit-timer)))
(defcustom erc-netsplit-show-server-mode-changes-flag nil
"Set to t to enable display of server mode changes."
:group 'erc-netsplit
:type 'boolean)
(defcustom erc-netsplit-debug nil
"If non-nil, debug messages will be shown in the
sever buffer."
:group 'erc-netsplit
:type 'boolean)
(defcustom erc-netsplit-regexp
"^[^ @!\"\n]+\\.[^ @!\n]+ [^ @!\n]+\\.[^ @!\"\n]+$"
"This regular expression should match quit reasons produced
by netsplits."
:group 'erc-netsplit
:type 'regexp)
(defcustom erc-netsplit-hook nil
"Run whenever a netsplit is detected the first time.
Args: PROC is the process the netsplit originated from and
SPLIT is the netsplit (e.g. \"server.name.1 server.name.2\")."
:group 'erc-hooks
:type 'hook)
(defcustom erc-netjoin-hook nil
"Run whenever a netjoin is detected the first time.
Args: PROC is the process the netjoin originated from and
SPLIT is the netsplit (e.g. \"server.name.1 server.name.2\")."
:group 'erc-hooks
:type 'hook)
(defvar erc-netsplit-list nil
"This is a list of the form
\((\"a.b.c.d e.f.g\" TIMESTAMP FIRST-JOIN \"nick1\" ... \"nickn\") ...)
where FIRST-JOIN is t or nil, depending on whether or not the first
join from that split has been detected or not.")
(make-variable-buffer-local 'erc-netsplit-list)
(defun erc-netsplit-install-message-catalogs ()
(erc-define-catalog
'english
'((netsplit . "netsplit: %s")
(netjoin . "netjoin: %s, %N were split")
(netjoin-done . "netjoin: All lost souls are back!")
(netsplit-none . "No netsplits in progress")
(netsplit-wholeft . "split: %s missing: %n %t"))))
(defun erc-netsplit-JOIN (proc parsed)
"Show/don't show rejoins."
(let ((nick (erc-response.sender parsed))
(no-next-hook nil))
(dolist (elt erc-netsplit-list)
(if (member nick (nthcdr 3 elt))
(progn
(if (not (nth 2 elt))
(progn
(erc-display-message
parsed 'notice (process-buffer proc)
'netjoin ?s (car elt) ?N (length (nthcdr 3 elt)))
(setcar (nthcdr 2 elt) t)
(run-hook-with-args 'erc-netjoin-hook proc (car elt))))
;; need to remove this nick, perhaps the whole entry here.
;; Note that by removing the nick now, we can't tell if further
;; join messages (for other channels) should also be
;; suppressed.
(if (null (nthcdr 4 elt))
(progn
(erc-display-message
parsed 'notice (process-buffer proc)
'netjoin-done ?s (car elt))
(setq erc-netsplit-list (delq elt erc-netsplit-list)))
(delete nick elt))
(setq no-next-hook t))))
no-next-hook))
(defun erc-netsplit-MODE (proc parsed)
"Hide mode changes from servers."
;; regexp matches things with a . in them, and no ! or @ in them.
(when (string-match "^[^@!\n]+\\.[^@!\n]+$" (erc-response.sender parsed))
(and erc-netsplit-debug
(erc-display-message
parsed 'notice (process-buffer proc)
"[debug] server mode change."))
(not erc-netsplit-show-server-mode-changes-flag)))
(defun erc-netsplit-QUIT (proc parsed)
"Detect netsplits."
(let ((split (erc-response.contents parsed))
(nick (erc-response.sender parsed))
ass)
(when (string-match erc-netsplit-regexp split)
(setq ass (assoc split erc-netsplit-list))
(if ass
;; element for this netsplit exists already
(progn
(setcdr (nthcdr 2 ass) (cons nick (nthcdr 3 ass)))
(when (nth 2 ass)
;; There was already a netjoin for this netsplit, it
;; seems like the old one didn't get finished...
(erc-display-message
parsed 'notice (process-buffer proc)
'netsplit ?s split)
(setcar (nthcdr 2 ass) t)
(run-hook-with-args 'erc-netsplit-hook proc split)))
;; element for this netsplit does not yet exist
(setq erc-netsplit-list
(cons (list split
(erc-current-time)
nil
nick)
erc-netsplit-list))
(erc-display-message
parsed 'notice (process-buffer proc)
'netsplit ?s split)
(run-hook-with-args 'erc-netsplit-hook proc split))
t)))
(defun erc-netsplit-timer (now)
"Clean cruft from `erc-netsplit-list' older than 10 minutes."
(when erc-server-connected
(dolist (elt erc-netsplit-list)
(when (> (erc-time-diff (cadr elt) now) 600)
(when erc-netsplit-debug
(erc-display-message
nil 'notice (current-buffer)
(concat "Netsplit: Removing " (car elt))))
(setq erc-netsplit-list (delq elt erc-netsplit-list))))))
;;;###autoload
(defun erc-cmd-WHOLEFT ()
"Show who's gone."
(erc-with-server-buffer
(if (null erc-netsplit-list)
(erc-display-message
nil 'notice 'active
'netsplit-none)
(dolist (elt erc-netsplit-list)
(erc-display-message
nil 'notice 'active
'netsplit-wholeft ?s (car elt)
?n (mapconcat 'erc-extract-nick (nthcdr 3 elt) " ")
?t (if (nth 2 elt)
"(joining)"
"")))))
t)
(defalias 'erc-cmd-WL 'erc-cmd-WHOLEFT)
(provide 'erc-netsplit)
;;; erc-netsplit.el ends here
;;
;; Local Variables:
;; indent-tabs-mode: t
;; tab-width: 8
;; End:
|
