1 ;;; gnus-msg.el --- mail and post interface for Gnus
3 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
4 ;; 2004, 2005, 2006 Free Software Foundation, Inc.
6 ;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
7 ;; Lars Magne Ingebrigtsen <larsi@gnus.org>
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 2, or (at your option)
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25 ;; Boston, MA 02110-1301, USA.
31 (eval-when-compile (require 'cl))
39 (defcustom gnus-post-method 'current
40 "*Preferred method for posting USENET news.
42 If this variable is `current' (which is the default), Gnus will use
43 the \"current\" select method when posting. If it is `native', Gnus
44 will use the native select method when posting.
46 This method will not be used in mail groups and the like, only in
49 If not `native' nor `current', the value must be a valid method as discussed
50 in the documentation of `gnus-select-method'. It can also be a list of
51 methods. If that is the case, the user will be queried for what select
52 method to use when posting."
53 :group 'gnus-group-foreign
54 :link '(custom-manual "(gnus)Posting Server")
55 :type `(choice (const native)
57 (sexp :tag "Methods" ,gnus-select-method)))
59 (defcustom gnus-outgoing-message-group nil
60 "*All outgoing messages will be put in this group.
61 If you want to store all your outgoing mail and articles in the group
62 \"nnml:archive\", you set this variable to that value. This variable
63 can also be a list of group names.
65 If you want to have greater control over what group to put each
66 message in, you can set this variable to a function that checks the
67 current newsgroup name and then returns a suitable group name (or list
70 :type '(choice (const nil)
73 (repeat :tag "List of groups" (string :tag "Group"))))
75 (defcustom gnus-mailing-list-groups nil
76 "*If non-nil a regexp matching groups that are really mailing lists.
77 This is useful when you're reading a mailing list that has been
78 gatewayed to a newsgroup, and you want to followup to an article in
81 :type '(choice (regexp)
84 (defcustom gnus-add-to-list nil
85 "*If non-nil, add a `to-list' parameter automatically."
89 (defcustom gnus-crosspost-complaint
92 You posted the article below with the following Newsgroups header:
96 The %s group, at least, was an inappropriate recipient
97 of this message. Please trim your Newsgroups header to exclude this
98 group before posting in the future.
103 "Format string to be inserted when complaining about crossposts.
104 The first %s will be replaced by the Newsgroups header;
105 the second with the current group name."
109 (defcustom gnus-message-setup-hook nil
110 "Hook run after setting up a message buffer."
114 (defcustom gnus-bug-create-help-buffer t
115 "*Should we create the *Gnus Help Bug* buffer?"
119 (defcustom gnus-posting-styles nil
120 "*Alist of styles to use when posting.
121 See Info node `(gnus)Posting Styles'."
123 :link '(custom-manual "(gnus)Posting Styles")
124 :type '(repeat (cons (choice (regexp)
127 (string :tag "Header")
128 (regexp :tag "Regexp"))
132 (choice (const signature)
133 (const signature-file)
140 (string :tag "Header"))
146 (defcustom gnus-gcc-mark-as-read nil
147 "If non-nil, automatically mark Gcc articles as read."
152 (make-obsolete-variable 'gnus-inews-mark-gcc-as-read
153 'gnus-gcc-mark-as-read)
155 (defcustom gnus-gcc-externalize-attachments nil
156 "Should local-file attachments be included as external parts in Gcc copies?
157 If it is `all', attach files as external parts;
158 if a regexp and matches the Gcc group name, attach files as external parts;
159 if nil, attach files as normal parts."
162 :type '(choice (const nil :tag "None")
163 (const all :tag "Any")
164 (string :tag "Regexp")))
166 (gnus-define-group-parameter
167 posting-charset-alist
170 "Return the permitted unencoded charsets for posting of GROUP."
171 :variable gnus-group-posting-charset-alist
173 '(("^\\(no\\|fr\\)\\.[^,]*\\(,[ \t\n]*\\(no\\|fr\\)\\.[^,]*\\)*$" iso-8859-1 (iso-8859-1))
174 ("^\\(fido7\\|relcom\\)\\.[^,]*\\(,[ \t\n]*\\(fido7\\|relcom\\)\\.[^,]*\\)*$" koi8-r (koi8-r))
175 (message-this-is-mail nil nil)
176 (message-this-is-news nil t))
178 "Alist of regexps and permitted unencoded charsets for posting.
179 Each element of the alist has the form (TEST HEADER BODY-LIST), where
180 TEST is either a regular expression matching the newsgroup header or a
182 HEADER is the charset which may be left unencoded in the header (nil
183 means encode all charsets),
184 BODY-LIST is a list of charsets which may be encoded using 8bit
185 content-transfer encoding in the body, or one of the special values
186 nil (always encode using quoted-printable) or t (always use 8bit).
188 Note that any value other than nil for HEADER infringes some RFCs, so
189 use this option with care."
190 :variable-group gnus-charset
192 '(repeat (list :tag "Permitted unencoded charsets"
194 (regexp :tag "Group")
195 (const :tag "Mail message" :value message-this-is-mail)
196 (const :tag "News article" :value message-this-is-news))
197 (choice :tag "Header"
198 (const :tag "None" nil)
199 (symbol :tag "Charset"))
201 (const :tag "Any" :value t)
202 (const :tag "None" :value nil)
203 (repeat :tag "Charsets"
204 (symbol :tag "Charset")))))
205 :parameter-type '(choice :tag "Permitted unencoded charsets"
208 :parameter-document "\
209 List of charsets that are permitted to be unencoded.")
211 (defcustom gnus-debug-files
212 '("gnus.el" "gnus-sum.el" "gnus-group.el"
213 "gnus-art.el" "gnus-start.el" "gnus-async.el"
214 "gnus-msg.el" "gnus-score.el" "gnus-win.el" "gnus-topic.el"
215 "gnus-agent.el" "gnus-cache.el" "gnus-srvr.el"
216 "mm-util.el" "mm-decode.el" "nnmail.el" "message.el")
217 "Files whose variables will be reported in `gnus-bug'."
220 :type '(repeat (string :tag "File")))
222 (defcustom gnus-debug-exclude-variables
223 '(mm-mime-mule-charset-alist
224 nnmail-split-fancy message-minibuffer-local-map)
225 "Variables that should not be reported in `gnus-bug'."
228 :type '(repeat (symbol :tag "Variable")))
230 (defcustom gnus-discouraged-post-methods
231 '(nndraft nnml nnimap nnmaildir nnmh nnfolder nndir)
232 "A list of back ends that are not used in \"real\" newsgroups.
233 This variable is used only when `gnus-post-method' is `current'."
235 :group 'gnus-group-foreign
236 :type '(repeat (symbol :tag "Back end")))
238 (defcustom gnus-message-replysign
240 "Automatically sign replies to signed messages.
241 See also the `mml-default-sign-method' variable."
245 (defcustom gnus-message-replyencrypt
247 "Automatically encrypt replies to encrypted messages.
248 See also the `mml-default-encrypt-method' variable."
252 (defcustom gnus-message-replysignencrypted
254 "Setting this causes automatically encrypted messages to also be signed."
258 (defcustom gnus-confirm-mail-reply-to-news (and gnus-novice-user
259 (not gnus-expert-user))
260 "If non-nil, Gnus requests confirmation when replying to news.
261 This is done because new users often reply by mistake when reading
263 This can also be a function receiving the group name as the only
264 parameter which should return non-nil iff a confirmation is needed, or
265 a regexp, in which case a confirmation is asked for iff the group name
269 :type '(choice (const :tag "No" nil)
271 (regexp :tag "Iff group matches regexp")
272 (function :tag "Iff function evaluates to non-nil")))
274 (defcustom gnus-confirm-treat-mail-like-news
276 "If non-nil, Gnus will treat mail like news with regard to confirmation
277 when replying by mail. See the `gnus-confirm-mail-reply-to-news' variable
278 for fine-tuning this.
279 If nil, Gnus will never ask for confirmation if replying to mail."
284 (defcustom gnus-summary-resend-default-address t
285 "If non-nil, Gnus tries to suggest a default address to resend to.
286 If nil, the address field will always be empty after invoking
287 `gnus-summary-resend-message'."
292 ;;; Internal variables.
294 (defvar gnus-inhibit-posting-styles nil
295 "Inhibit the use of posting styles.")
297 (defvar gnus-article-yanked-articles nil)
298 (defvar gnus-message-buffer "*Mail Gnus*")
299 (defvar gnus-article-copy nil)
300 (defvar gnus-check-before-posting nil)
301 (defvar gnus-last-posting-server nil)
302 (defvar gnus-message-group-art nil)
304 (defvar gnus-msg-force-broken-reply-to nil)
306 (defconst gnus-bug-message
307 "Sending a bug report to the Gnus Towers.
308 ========================================
310 The buffer below is a mail buffer. When you press `C-c C-c', it will
311 be sent to the Gnus Bug Exterminators.
313 The thing near the bottom of the buffer is how the environment
314 settings will be included in the mail. Please do not delete that.
315 They will tell the Bug People what your environment is, so that it
316 will be easier to locate the bugs.
318 If you have found a bug that makes Emacs go \"beep\", set
319 debug-on-error to t (`M-x set-variable RET debug-on-error RET t RET')
320 and include the backtrace in your bug report.
322 Please describe the bug in annoying, painstaking detail.
324 Thank you for your help in stamping out bugs.
328 (autoload 'gnus-uu-post-news "gnus-uu" nil t))
332 ;;; Gnus Posting Functions
335 (gnus-define-keys (gnus-summary-send-map "S" gnus-summary-mode-map)
336 "p" gnus-summary-post-news
337 "i" gnus-summary-news-other-window
338 "f" gnus-summary-followup
339 "F" gnus-summary-followup-with-original
340 "c" gnus-summary-cancel-article
341 "s" gnus-summary-supersede-article
342 "r" gnus-summary-reply
343 "y" gnus-summary-yank-message
344 "R" gnus-summary-reply-with-original
345 "w" gnus-summary-wide-reply
346 "W" gnus-summary-wide-reply-with-original
347 "v" gnus-summary-very-wide-reply
348 "V" gnus-summary-very-wide-reply-with-original
349 "n" gnus-summary-followup-to-mail
350 "N" gnus-summary-followup-to-mail-with-original
351 "m" gnus-summary-mail-other-window
352 "u" gnus-uu-post-news
353 "\M-c" gnus-summary-mail-crosspost-complaint
354 "Br" gnus-summary-reply-broken-reply-to
355 "BR" gnus-summary-reply-broken-reply-to-with-original
356 "om" gnus-summary-mail-forward
357 "op" gnus-summary-post-forward
358 "Om" gnus-uu-digest-mail-forward
359 "Op" gnus-uu-digest-post-forward)
361 (gnus-define-keys (gnus-send-bounce-map "D" gnus-summary-send-map)
362 "b" gnus-summary-resend-bounced-mail
363 ;; "c" gnus-summary-send-draft
364 "r" gnus-summary-resend-message
365 "e" gnus-summary-resend-message-edit)
367 ;;; Internal functions.
369 (defun gnus-inews-make-draft (articles)
371 (gnus-inews-make-draft-meta-information
372 ,gnus-newsgroup-name ',articles)))
374 (defvar gnus-article-reply nil)
375 (defmacro gnus-setup-message (config &rest forms)
376 (let ((winconf (make-symbol "gnus-setup-message-winconf"))
377 (buffer (make-symbol "gnus-setup-message-buffer"))
378 (article (make-symbol "gnus-setup-message-article"))
379 (yanked (make-symbol "gnus-setup-yanked-articles"))
380 (group (make-symbol "gnus-setup-message-group")))
381 `(let ((,winconf (current-window-configuration))
382 (,buffer (buffer-name (current-buffer)))
383 (,article gnus-article-reply)
384 (,yanked gnus-article-yanked-articles)
385 (,group gnus-newsgroup-name)
386 (message-header-setup-hook
387 (copy-sequence message-header-setup-hook))
388 (mbl mml-buffer-list)
389 (message-mode-hook (copy-sequence message-mode-hook)))
390 (setq mml-buffer-list nil)
391 (add-hook 'message-header-setup-hook 'gnus-inews-insert-gcc)
392 (add-hook 'message-header-setup-hook 'gnus-inews-insert-archive-gcc)
393 ;; #### FIXME: for a reason that I did not manage to identify yet,
394 ;; the variable `gnus-newsgroup-name' does not honor a dynamically
395 ;; scoped or setq'ed value from a caller like `C-u gnus-summary-mail'.
396 ;; After evaluation of @forms below, it gets the value we actually want
397 ;; to override, and the posting styles are used. For that reason, I've
398 ;; added an optional argument to `gnus-configure-posting-styles' to
399 ;; make sure that the correct value for the group name is used. -- drv
400 (add-hook 'message-mode-hook
401 (if (memq ,config '(reply-yank reply))
403 (gnus-configure-posting-styles ,group))
405 ;; There may be an old " *gnus article copy*" buffer.
406 (let (gnus-article-copy)
407 (gnus-configure-posting-styles ,group)))))
408 (gnus-pull ',(intern gnus-draft-meta-information-header)
409 message-required-headers)
411 (not (string= ,group "")))
413 (intern gnus-draft-meta-information-header)
414 (gnus-inews-make-draft (or ,yanked ,article)))
415 message-required-headers))
419 (gnus-inews-add-send-actions ,winconf ,buffer ,article ,config
421 (setq gnus-message-buffer (current-buffer))
422 (set (make-local-variable 'gnus-message-group-art)
423 (cons ,group ,article))
424 (set (make-local-variable 'gnus-newsgroup-name) ,group)
425 (gnus-run-hooks 'gnus-message-setup-hook)
426 (if (eq major-mode 'message-mode)
427 (let ((mbl1 mml-buffer-list))
428 (setq mml-buffer-list mbl) ;; Global value
429 (set (make-local-variable 'mml-buffer-list) mbl1);; Local value
430 (gnus-make-local-hook 'kill-buffer-hook)
431 (gnus-make-local-hook 'change-major-mode-hook)
432 (add-hook 'change-major-mode-hook 'mml-destroy-buffers nil t)
433 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t))
434 (mml-destroy-buffers)
435 (setq mml-buffer-list mbl)))
436 (message-hide-headers)
438 (gnus-configure-windows ,config t)
439 (run-hooks 'post-command-hook)
440 (set-buffer-modified-p nil))))
442 (defun gnus-inews-make-draft-meta-information (group articles)
443 (when (numberp articles)
444 (setq articles (list articles)))
445 (concat "(\"" group "\""
459 (defun gnus-msg-mail (&optional to subject other-headers continue
460 switch-action yank-action send-actions)
461 "Start editing a mail message to be sent.
462 Like `message-mail', but with Gnus paraphernalia, particularly the
463 Gcc: header for archiving purposes."
465 (let ((buf (current-buffer))
467 (gnus-setup-message 'message
468 (message-mail to subject other-headers continue
469 nil yank-action send-actions))
471 (setq mail-buf (current-buffer))
472 (switch-to-buffer buf)
473 (apply switch-action mail-buf nil)))
474 ;; COMPOSEFUNC should return t if succeed. Undocumented ???
478 (defun gnus-button-mailto (address)
480 (set-buffer (gnus-copy-article-buffer))
481 (gnus-setup-message 'message
482 (message-reply address)))
485 (defun gnus-button-reply (&optional to-address wide)
486 "Like `message-reply'."
488 (gnus-setup-message 'message
489 (message-reply to-address wide)))
492 (define-mail-user-agent 'gnus-user-agent
493 'gnus-msg-mail 'message-send-and-exit
494 'message-kill-buffer 'message-send-hook)
496 (defun gnus-setup-posting-charset (group)
497 (let ((alist gnus-group-posting-charset-alist)
498 (group (or group ""))
502 (while (setq elem (pop alist))
503 (when (or (and (stringp (car elem))
504 (string-match (car elem) group))
505 (and (functionp (car elem))
506 (funcall (car elem) group))
507 (and (symbolp (car elem))
508 (symbol-value (car elem))))
509 (throw 'found (cons (cadr elem) (caddr elem)))))))))
511 (defun gnus-inews-add-send-actions (winconf buffer article
512 &optional config yanked)
513 (gnus-make-local-hook 'message-sent-hook)
514 (add-hook 'message-sent-hook (if gnus-agent 'gnus-agent-possibly-do-gcc
515 'gnus-inews-do-gcc) nil t)
517 (gnus-make-local-hook 'message-header-hook)
518 (add-hook 'message-header-hook 'gnus-agent-possibly-save-gcc nil t))
519 (setq message-post-method
520 `(lambda (&optional arg)
521 (gnus-post-method arg ,gnus-newsgroup-name)))
522 (setq message-newsreader (setq message-mailer (gnus-extended-version)))
524 `(when (gnus-buffer-exists-p ,buffer)
525 (set-window-configuration ,winconf))
526 'exit 'postpone 'kill)
527 (let ((to-be-marked (cond
530 (lambda (x) (if (listp x) (car x) x)) yanked))
531 (article (if (listp article) article (list article)))
534 `(when (gnus-buffer-exists-p ,buffer)
538 (if (eq config 'forward)
539 `(gnus-summary-mark-article-as-forwarded ',to-be-marked)
540 `(gnus-summary-mark-article-as-replied ',to-be-marked)))))
543 (put 'gnus-setup-message 'lisp-indent-function 1)
544 (put 'gnus-setup-message 'edebug-form-spec '(form body))
546 ;;; Post news commands of Gnus group mode and summary mode
548 (defun gnus-group-mail (&optional arg)
549 "Start composing a mail.
550 If ARG, use the group under the point to find a posting style.
551 If ARG is 1, prompt for a group name to find the posting style."