Merge from emacs--rel--22
[bpt/emacs.git] / lisp / erc / erc-services.el
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c6b99621 1;;; erc-services.el --- Identify to NickServ
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f0fa15c5 3;; Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
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4
5;; This file is part of GNU Emacs.
6
7;; GNU Emacs is free software; you can redistribute it and/or modify
8;; it under the terms of the GNU General Public License as published by
9;; the Free Software Foundation; either version 2, or (at your option)
10;; any later version.
11
12;; GNU Emacs is distributed in the hope that it will be useful,
13;; but WITHOUT ANY WARRANTY; without even the implied warranty of
14;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15;; GNU General Public License for more details.
16
17;; You should have received a copy of the GNU General Public License
18;; along with GNU Emacs; see the file COPYING. If not, write to the
19;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20;; Boston, MA 02110-1301, USA.
21
22;;; Commentary:
23
24;; There are two ways to go about identifying yourself automatically to
25;; NickServ with this module. The more secure way is to listen for identify
26;; requests from the user NickServ. Another way is to identify yourself to
27;; NickServ directly after a successful connection and every time you change
28;; your nickname. This method is rather insecure, though, because no checks
29;; are made to test if NickServ is the real NickServ for a given network or
30;; server.
31
32;; As a default, ERC has the data for the official nickname services on the
33;; networks Austnet, BrasNET, Dalnet, freenode, GalaxyNet, and Slashnet.
34;; You can add more by using M-x customize-variable RET erc-nickserv-alist.
35
36;; Usage:
37;;
38;; Put into your .emacs:
39;;
c6b99621 40;; (require 'erc-services)
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41;; (erc-services-mode 1)
42;;
43;; Add your nickname and NickServ password to `erc-nickserv-passwords'.
44;; Using the freenode network as an example:
45;;
46;; (setq erc-nickserv-passwords '((freenode (("nickname" "password")))))
47;;
48;; The default automatic identification mode is autodetection of NickServ
49;; identify requests. Set the variable `erc-nickserv-identify-mode' if
50;; you'd like to change this behavior. You can also change the way
51;; automatic identification is handled by using:
52;;
53;; M-x erc-nickserv-identify-mode
54;;
55;; If you'd rather not identify yourself automatically but would like access
56;; to the functions contained in this file, just load this file without
57;; enabling `erc-services-mode'.
58;;
59
60;;; Code:
61
62(require 'erc)
c6b99621 63(require 'erc-networks)
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64(eval-when-compile (require 'cl))
65
66;; Customization:
67
68(defgroup erc-services nil
69 "Configuration for IRC services.
70
71On some networks, there exists a special type of automated irc bot,
72called Services. Those usually allow you to register your nickname,
73post/read memos to other registered users who are currently offline,
74and do various other things.
75
76This group allows you to set variables to somewhat automate
77communication with those Services."
78 :group 'erc)
79
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80(defcustom erc-nickserv-identify-mode 'both
81 "The mode which is used when identifying to Nickserv.
82
83Possible settings are:.
84
85'autodetect - Identify when the real Nickserv sends an identify request.
86'nick-change - Identify when you log in or change your nickname.
87'both - Do the former if the network supports it, otherwise do the
88 latter.
89nil - Disables automatic Nickserv identification.
90
91You can also use M-x erc-nickserv-identify-mode to change modes."
92 :group 'erc-services
93 :type '(choice (const autodetect)
94 (const nick-change)
95 (const both)
96 (const nil))
97 :set (lambda (sym val)
98 (set sym val)
99 ;; avoid recursive load at startup
100 (when (featurep 'erc-services)
101 (erc-nickserv-identify-mode val))))
102
c6b99621 103;;;###autoload (autoload 'erc-services-mode "erc-services" nil t)
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104(define-erc-module services nickserv
105 "This mode automates communication with services."
106 ((erc-nickserv-identify-mode erc-nickserv-identify-mode))
107 ((remove-hook 'erc-server-NOTICE-functions
108 'erc-nickserv-identify-autodetect)
109 (remove-hook 'erc-after-connect
110 'erc-nickserv-identify-on-connect)
111 (remove-hook 'erc-nick-changed-functions
112 'erc-nickserv-identify-on-nick-change)))
113
114;;;###autoload
115(defun erc-nickserv-identify-mode (mode)
116 "Set up hooks according to which MODE the user has chosen."
117 (interactive
118 (list (intern (completing-read
119 "Choose Nickserv identify mode (RET to disable): "
10dc9f9e 120 '(("autodetect") ("nick-change") ("both")) nil t))))
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121 (cond ((eq mode 'autodetect)
122 (setq erc-nickserv-identify-mode 'autodetect)
123 (add-hook 'erc-server-NOTICE-functions
124 'erc-nickserv-identify-autodetect)
125 (remove-hook 'erc-nick-changed-functions
126 'erc-nickserv-identify-on-nick-change)
127 (remove-hook 'erc-after-connect
128 'erc-nickserv-identify-on-connect))
129 ((eq mode 'nick-change)
130 (setq erc-nickserv-identify-mode 'nick-change)
131 (add-hook 'erc-after-connect
132 'erc-nickserv-identify-on-connect)
133 (add-hook 'erc-nick-changed-functions
134 'erc-nickserv-identify-on-nick-change)
135 (remove-hook 'erc-server-NOTICE-functions
136 'erc-nickserv-identify-autodetect))
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137 ((eq mode 'both)
138 (setq erc-nickserv-identify-mode 'both)
139 (add-hook 'erc-server-NOTICE-functions
140 'erc-nickserv-identify-autodetect)
141 (add-hook 'erc-after-connect
142 'erc-nickserv-identify-on-connect)
143 (add-hook 'erc-nick-changed-functions
144 'erc-nickserv-identify-on-nick-change))
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145 (t
146 (setq erc-nickserv-identify-mode nil)
147 (remove-hook 'erc-server-NOTICE-functions
148 'erc-nickserv-identify-autodetect)
149 (remove-hook 'erc-after-connect
150 'erc-nickserv-identify-on-connect)
151 (remove-hook 'erc-nick-changed-functions
152 'erc-nickserv-identify-on-nick-change))))
153
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154(defcustom erc-prompt-for-nickserv-password t
155 "Ask for the password when identifying to NickServ."
156 :group 'erc-services
157 :type 'boolean)
158
159(defcustom erc-nickserv-passwords nil
160 "Passwords used when identifying to NickServ automatically.
161
162Example of use:
163 (setq erc-nickserv-passwords
164 '((freenode ((\"nick-one\" . \"password\")
165 (\"nick-two\" . \"password\")))
166 (DALnet ((\"nick\" . \"password\")))))"
167 :group 'erc-services
168 :type '(repeat
169 (list :tag "Network"
170 (choice :tag "Network name"
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171 (const Ars)
172 (const Austnet)
173 (const Azzurra)
174 (const BitlBee)
175 (const BRASnet)
597993cf 176 (const DALnet)
ff59d266 177 (const freenode)
597993cf 178 (const GalaxyNet)
597993cf 179 (const iip)
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180 (const OFTC)
181 (const QuakeNet)
182 (const SlashNET)
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183 (symbol :tag "Network name"))
184 (repeat :tag "Nickname and password"
185 (cons :tag "Identity"
186 (string :tag "Nick")
187 (string :tag "Password"))))))
188
189;; Variables:
190
191(defcustom erc-nickserv-alist
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192 '((Ars
193 nil nil
194 "Census"
195 "IDENTIFY" nil nil)
196 (Austnet
197 "NickOP!service@austnet.org"
198 "/msg\\s-NickOP@austnet.org\\s-identify\\s-<password>"
199 "nickop@austnet.org"
200 "identify" nil nil)
201 (Azzurra
202 "NickServ!service@azzurra.org"
203 "\ 2/ns\\s-IDENTIFY\\s-password\ 2"
204 "NickServ"
205 "IDENTIFY" nil nil)
206 (BitlBee
207 nil nil
6904f7fe 208 "&bitlbee"
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209 "identify" nil nil)
210 (BRASnet
211 "NickServ!services@brasnet.org"
212 "\ 2/NickServ\\s-IDENTIFY\\s-\1fsenha\1f\ 2"
213 "NickServ"
214 "IDENTIFY" nil "")
6904f7fe 215 (DALnet
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216 "NickServ!service@dal.net"
217 "/msg\\s-NickServ@services.dal.net\\s-IDENTIFY\\s-<password>"
218 "NickServ@services.dal.net"
ff59d266 219 "IDENTIFY" nil nil)
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220 (freenode
221 "NickServ!NickServ@services."
222 "/msg\\s-NickServ\\s-\ 2IDENTIFY\ 2\\s-<password>"
223 "NickServ"
ff59d266 224 "IDENTIFY" nil nil)
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225 (GalaxyNet
226 "NS!nickserv@galaxynet.org"
227 "Please\\s-change\\s-nicks\\s-or\\s-authenticate."
228 "NS@services.galaxynet.org"
ff59d266 229 "AUTH" t nil)
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230 (iip
231 "Trent@anon.iip"
232 "type\\s-/squery\\s-Trent\\s-identify\\s-<password>"
233 "Trent@anon.iip"
ff59d266 234 "IDENTIFY" nil "SQUERY")
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235 (OFTC
236 "NickServ!services@services.oftc.net"
ff59d266 237 "type\\s-\ 2/msg\\s-NickServ\\s-IDENTIFY\\s-\1fpassword\1f\ 2."
10dc9f9e 238 "NickServ"
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239 "IDENTIFY" nil nil)
240 (QuakeNet
241 nil nil
242 "Q@CServe.quakenet.org"
243 "auth" t nil)
244 (SlashNET
245 "NickServ!services@services.slashnet.org"
246 "/msg\\s-NickServ\\s-IDENTIFY\\s-\1fpassword"
247 "NickServ@services.slashnet.org"
248 "IDENTIFY" nil nil))
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249 "Alist of NickServer details, sorted by network.
250Every element in the list has the form
251 \(SYMBOL NICKSERV REGEXP NICK KEYWORD USE-CURRENT ANSWER)
252
253SYMBOL is a network identifier, a symbol, as used in `erc-networks-alist'.
254NICKSERV is the description of the nickserv in the form nick!user@host.
255REGEXP is a regular expression matching the message from nickserv.
256NICK is nickserv's nickname. Use nick@server where necessary/possible.
257KEYWORD is the keyword to use in the reply message to identify yourself.
258USE-CURRENT indicates whether the current nickname must be used when
259 identifying.
260ANSWER is the command to use for the answer. The default is 'privmsg.
261 This last element is optional."
262 :group 'erc-services
263 :type '(repeat
264 (list :tag "Nickserv data"
265 (symbol :tag "Network name")
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266 (choice (string :tag "Nickserv's nick!user@host")
267 (const :tag "No message sent by Nickserv" nil))
268 (choice (regexp :tag "Identify request sent by Nickserv")
269 (const :tag "No message sent by Nickserv" nil))
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270 (string :tag "Identify to")
271 (string :tag "Identify keyword")
272 (boolean :tag "Use current nick in identify message?")
273 (choice :tag "Command to use (optional)"
274 (string :tag "Command")
275 (const :tag "No special command necessary" nil)))))
276
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277(defsubst erc-nickserv-alist-sender (network &optional entry)
278 (nth 1 (or entry (assoc network erc-nickserv-alist))))
279
280(defsubst erc-nickserv-alist-regexp (network &optional entry)
281 (nth 2 (or entry (assoc network erc-nickserv-alist))))
282
283(defsubst erc-nickserv-alist-nickserv (network &optional entry)
284 (nth 3 (or entry (assoc network erc-nickserv-alist))))
285
286(defsubst erc-nickserv-alist-ident-keyword (network &optional entry)
287 (nth 4 (or entry (assoc network erc-nickserv-alist))))
288
289(defsubst erc-nickserv-alist-use-nick-p (network &optional entry)
290 (nth 5 (or entry (assoc network erc-nickserv-alist))))
291
292(defsubst erc-nickserv-alist-ident-command (network &optional entry)
293 (nth 6 (or entry (assoc network erc-nickserv-alist))))
294
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295;; Functions:
296
297(defun erc-nickserv-identify-autodetect (proc parsed)
298 "Check for a NickServ identify request everytime a notice is received.
299Make sure it is the real NickServ for this network and that it has
300specifically asked the user to IDENTIFY.
301If `erc-prompt-for-nickserv-password' is non-nil, prompt the user for the
302password for this nickname, otherwise try to send it automatically."
303 (unless (and (null erc-nickserv-passwords)
304 (null erc-prompt-for-nickserv-password))
305 (let* ((network (erc-network))
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306 (sender (erc-nickserv-alist-sender network))
307 (identify-regex (erc-nickserv-alist-regexp network))
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308 (sspec (erc-response.sender parsed))
309 (nick (car (erc-response.command-args parsed)))
310 (msg (erc-response.contents parsed)))
311 ;; continue only if we're sure it's the real nickserv for this network
312 ;; and it's asked us to identify
6904f7fe 313 (when (and sender (equal sspec sender)
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314 (string-match identify-regex msg))
315 (erc-log "NickServ IDENTIFY request detected")
316 (erc-nickserv-call-identify-function nick)
317 nil))))
318
319(defun erc-nickserv-identify-on-connect (server nick)
320 "Identify to Nickserv after the connection to the server is established."
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321 (unless (or (and (null erc-nickserv-passwords)
322 (null erc-prompt-for-nickserv-password))
323 (and (eq erc-nickserv-identify-mode 'both)
6904f7fe 324 (erc-nickserv-alist-regexp (erc-network))))
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325 (erc-nickserv-call-identify-function nick)))
326
327(defun erc-nickserv-identify-on-nick-change (nick old-nick)
328 "Identify to Nickserv whenever your nick changes."
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329 (unless (or (and (null erc-nickserv-passwords)
330 (null erc-prompt-for-nickserv-password))
331 (and (eq erc-nickserv-identify-mode 'both)
6904f7fe 332 (erc-nickserv-alist-regexp (erc-network))))
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333 (erc-nickserv-call-identify-function nick)))
334
335(defun erc-nickserv-call-identify-function (nickname)
336 "Call `erc-nickserv-identify' interactively or run it with NICKNAME's
337password.
338The action is determined by the value of `erc-prompt-for-nickserv-password'."
339 (if erc-prompt-for-nickserv-password
340 (call-interactively 'erc-nickserv-identify)
341 (when erc-nickserv-passwords
342 (erc-nickserv-identify
343 (cdr (assoc nickname
344 (nth 1 (assoc (erc-network)
345 erc-nickserv-passwords))))))))
346
347;;;###autoload
348(defun erc-nickserv-identify (password)
349 "Send an \"identify <PASSWORD>\" message to NickServ.
350When called interactively, read the password using `read-passwd'."
351 (interactive
352 (list (read-passwd
353 (format "NickServ password for %s on %s (RET to cancel): "
354 (erc-current-nick)
355 (or (and (erc-network)
356 (symbol-name (erc-network)))
357 "Unknown network")))))
358 (when (and password (not (string= "" password)))
359 (let* ((erc-auto-discard-away nil)
360 (network (erc-network))
361 (nickserv-info (assoc network erc-nickserv-alist))
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362 (nickserv (or (erc-nickserv-alist-nickserv nil nickserv-info)
363 "NickServ"))
364 (identify-word (or (erc-nickserv-alist-ident-keyword
365 nil nickserv-info)
366 "IDENTIFY"))
367 (nick (if (erc-nickserv-alist-use-nick-p nil nickserv-info)
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368 (concat (erc-current-nick) " ")
369 ""))
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370 (msgtype (or (erc-nickserv-alist-ident-command nil nickserv-info)
371 "PRIVMSG")))
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372 (erc-message msgtype
373 (concat nickserv " " identify-word " " nick password)))))
374
c6b99621 375(provide 'erc-services)
597993cf 376
c6b99621 377;;; erc-services.el ends here
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378;;
379;; Local Variables:
380;; indent-tabs-mode: t
381;; tab-width: 8
382;; End:
383
384;; arch-tag: d401c8aa-d938-4255-96a9-3efb64c47e58