gnus-msg.el 65.4 KB
Newer Older
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1
;;; gnus-msg.el --- mail and post interface for Gnus
2

3
;; Copyright (C) 1995-2012  Free Software Foundation, Inc.
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
4 5

;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
6
;;	Lars Magne Ingebrigtsen <larsi@gnus.org>
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
7 8 9 10
;; Keywords: news

;; This file is part of GNU Emacs.

11
;; GNU Emacs is free software: you can redistribute it and/or modify
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
12
;; it under the terms of the GNU General Public License as published by
13 14
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
15 16 17 18 19 20 21

;; 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
22
;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
23 24 25 26 27

;;; Commentary:

;;; Code:

28 29
(eval-when-compile (require 'cl))

Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
30 31 32 33
(require 'gnus)
(require 'gnus-ems)
(require 'message)
(require 'gnus-art)
34
(require 'gnus-util)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
35

36
(defcustom gnus-post-method 'current
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
37 38
  "*Preferred method for posting USENET news.

39 40 41
If this variable is `current' (which is the default), Gnus will use
the \"current\" select method when posting.  If it is `native', Gnus
will use the native select method when posting.
42 43 44 45

This method will not be used in mail groups and the like, only in
\"real\" newsgroups.

46
If not `native' nor `current', the value must be a valid method as discussed
47 48
in the documentation of `gnus-select-method'.  It can also be a list of
methods.  If that is the case, the user will be queried for what select
49 50
method to use when posting."
  :group 'gnus-group-foreign
51 52 53
  :link '(custom-manual "(gnus)Posting Server")
  :type `(choice (const native)
		 (const current)
54
		 (sexp :tag "Methods" ,gnus-select-method)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
55

56
(defcustom gnus-outgoing-message-group nil
57
  "All outgoing messages will be put in this group.
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
58 59 60 61 62 63 64
If you want to store all your outgoing mail and articles in the group
\"nnml:archive\", you set this variable to that value.  This variable
can also be a list of group names.

If you want to have greater control over what group to put each
message in, you can set this variable to a function that checks the
current newsgroup name and then returns a suitable group name (or list
65 66
of names)."
  :group 'gnus-message
67 68 69 70
  :type '(choice (const nil)
		 (function)
		 (string :tag "Group")
		 (repeat :tag "List of groups" (string :tag "Group"))))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
71

72 73
(make-obsolete-variable 'gnus-outgoing-message-group 'gnus-message-archive-group "24.1")

74 75
(defcustom gnus-mailing-list-groups nil
  "*If non-nil a regexp matching groups that are really mailing lists.
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
76 77
This is useful when you're reading a mailing list that has been
gatewayed to a newsgroup, and you want to followup to an article in
78 79 80 81
the group."
  :group 'gnus-message
  :type '(choice (regexp)
		 (const nil)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
82

83 84 85 86
(defcustom gnus-add-to-list nil
  "*If non-nil, add a `to-list' parameter automatically."
  :group 'gnus-message
  :type 'boolean)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
87

88
(defcustom gnus-crosspost-complaint
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103
  "Hi,

You posted the article below with the following Newsgroups header:

Newsgroups: %s

The %s group, at least, was an inappropriate recipient
of this message.  Please trim your Newsgroups header to exclude this
group before posting in the future.

Thank you.

"
  "Format string to be inserted when complaining about crossposts.
The first %s will be replaced by the Newsgroups header;
104 105 106 107 108 109 110
the second with the current group name."
  :group 'gnus-message
  :type 'string)

(defcustom gnus-message-setup-hook nil
  "Hook run after setting up a message buffer."
  :group 'gnus-message
Miles Bader's avatar
Miles Bader committed
111
  :options '(message-remove-blank-cited-lines)
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
  :type 'hook)

(defcustom gnus-bug-create-help-buffer t
  "*Should we create the *Gnus Help Bug* buffer?"
  :group 'gnus-message
  :type 'boolean)

(defcustom gnus-posting-styles nil
  "*Alist of styles to use when posting.
See Info node `(gnus)Posting Styles'."
  :group 'gnus-message
  :link '(custom-manual "(gnus)Posting Styles")
  :type '(repeat (cons (choice (regexp)
			       (variable)
			       (list (const header)
				     (string :tag "Header")
				     (regexp :tag "Regexp"))
			       (function)
			       (sexp))
		       (repeat (list
				(choice (const signature)
					(const signature-file)
					(const organization)
					(const address)
					(const x-face-file)
					(const name)
					(const body)
					(symbol)
					(string :tag "Header"))
				(choice (string)
					(function)
					(variable)
					(sexp)))))))

(defcustom gnus-gcc-mark-as-read nil
  "If non-nil, automatically mark Gcc articles as read."
148
  :version "22.1"
149 150 151 152
  :group 'gnus-message
  :type 'boolean)

(make-obsolete-variable 'gnus-inews-mark-gcc-as-read
153
			'gnus-gcc-mark-as-read "Emacs 22.1")
154 155 156 157 158 159

(defcustom gnus-gcc-externalize-attachments nil
  "Should local-file attachments be included as external parts in Gcc copies?
If it is `all', attach files as external parts;
if a regexp and matches the Gcc group name, attach files as external parts;
if nil, attach files as normal parts."
160
  :version "22.1"
161 162 163 164 165 166 167 168 169 170 171 172
  :group 'gnus-message
  :type '(choice (const nil :tag "None")
		 (const all :tag "Any")
		 (string :tag "Regexp")))

(gnus-define-group-parameter
 posting-charset-alist
 :type list
 :function-document
 "Return the permitted unencoded charsets for posting of GROUP."
 :variable gnus-group-posting-charset-alist
 :variable-default
173
  '(("^\\(no\\|fr\\)\\.[^,]*\\(,[ \t\n]*\\(no\\|fr\\)\\.[^,]*\\)*$" iso-8859-1 (iso-8859-1))
174 175 176
    ("^\\(fido7\\|relcom\\)\\.[^,]*\\(,[ \t\n]*\\(fido7\\|relcom\\)\\.[^,]*\\)*$" koi8-r (koi8-r))
    (message-this-is-mail nil nil)
    (message-this-is-news nil t))
177
 :variable-document
178 179 180 181 182 183 184 185 186 187 188 189
  "Alist of regexps and permitted unencoded charsets for posting.
Each element of the alist has the form (TEST HEADER BODY-LIST), where
TEST is either a regular expression matching the newsgroup header or a
variable to query,
HEADER is the charset which may be left unencoded in the header (nil
means encode all charsets),
BODY-LIST is a list of charsets which may be encoded using 8bit
content-transfer encoding in the body, or one of the special values
nil (always encode using quoted-printable) or t (always use 8bit).

Note that any value other than nil for HEADER infringes some RFCs, so
use this option with care."
190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217
 :variable-group gnus-charset
 :variable-type
 '(repeat (list :tag "Permitted unencoded charsets"
		(choice :tag "Where"
			(regexp :tag "Group")
			(const :tag "Mail message" :value message-this-is-mail)
			(const :tag "News article" :value message-this-is-news))
		(choice :tag "Header"
			(const :tag "None" nil)
			(symbol :tag "Charset"))
		(choice :tag "Body"
			(const :tag "Any" :value t)
			(const :tag "None" :value nil)
			(repeat :tag "Charsets"
				(symbol :tag "Charset")))))
 :parameter-type '(choice :tag "Permitted unencoded charsets"
			  :value nil
			  (repeat (symbol)))
 :parameter-document       "\
List of charsets that are permitted to be unencoded.")

(defcustom gnus-debug-files
  '("gnus.el" "gnus-sum.el" "gnus-group.el"
    "gnus-art.el" "gnus-start.el" "gnus-async.el"
    "gnus-msg.el" "gnus-score.el" "gnus-win.el" "gnus-topic.el"
    "gnus-agent.el" "gnus-cache.el" "gnus-srvr.el"
    "mm-util.el" "mm-decode.el" "nnmail.el" "message.el")
  "Files whose variables will be reported in `gnus-bug'."
218
  :version "22.1"
219 220 221 222 223 224 225
  :group 'gnus-message
  :type '(repeat (string :tag "File")))

(defcustom gnus-debug-exclude-variables
  '(mm-mime-mule-charset-alist
    nnmail-split-fancy message-minibuffer-local-map)
  "Variables that should not be reported in `gnus-bug'."
226
  :version "22.1"
227 228 229 230 231 232 233
  :group 'gnus-message
  :type '(repeat (symbol :tag "Variable")))

(defcustom gnus-discouraged-post-methods
  '(nndraft nnml nnimap nnmaildir nnmh nnfolder nndir)
  "A list of back ends that are not used in \"real\" newsgroups.
This variable is used only when `gnus-post-method' is `current'."
234
  :version "22.1"
235 236 237 238 239 240 241 242 243 244
  :group 'gnus-group-foreign
  :type '(repeat (symbol :tag "Back end")))

(defcustom gnus-message-replysign
  nil
  "Automatically sign replies to signed messages.
See also the `mml-default-sign-method' variable."
  :group 'gnus-message
  :type 'boolean)

245
(defcustom gnus-message-replyencrypt t
246 247
  "Automatically encrypt replies to encrypted messages.
See also the `mml-default-encrypt-method' variable."
248
  :version "24.1"
249 250 251 252 253 254 255 256 257
  :group 'gnus-message
  :type 'boolean)

(defcustom gnus-message-replysignencrypted
  t
  "Setting this causes automatically encrypted messages to also be signed."
  :group 'gnus-message
  :type 'boolean)

258 259
(defcustom gnus-confirm-mail-reply-to-news (and gnus-novice-user
						(not gnus-expert-user))
260 261 262 263
  "If non-nil, Gnus requests confirmation when replying to news.
This is done because new users often reply by mistake when reading
news.
This can also be a function receiving the group name as the only
264 265
parameter, which should return non-nil if a confirmation is needed; or
a regexp, in which case a confirmation is asked for if the group name
266
matches the regexp."
267
  :version "23.1" ;; No Gnus (default changed)
268 269 270
  :group 'gnus-message
  :type '(choice (const :tag "No" nil)
		 (const :tag "Yes" t)
271 272
		 (regexp :tag "If group matches regexp")
		 (function :tag "If function evaluates to non-nil")))
273 274 275 276 277 278 279

(defcustom gnus-confirm-treat-mail-like-news
  nil
  "If non-nil, Gnus will treat mail like news with regard to confirmation
when replying by mail.  See the `gnus-confirm-mail-reply-to-news' variable
for fine-tuning this.
If nil, Gnus will never ask for confirmation if replying to mail."
280
  :version "22.1"
281 282 283 284 285 286 287
  :group 'gnus-message
  :type 'boolean)

(defcustom gnus-summary-resend-default-address t
  "If non-nil, Gnus tries to suggest a default address to resend to.
If nil, the address field will always be empty after invoking
`gnus-summary-resend-message'."
288
  :version "22.1"
289 290
  :group 'gnus-message
  :type 'boolean)
291

292 293 294
(defcustom gnus-message-highlight-citation
  t ;; gnus-treat-highlight-citation ;; gnus-cite dependency
  "Enable highlighting of different citation levels in message-mode."
295
  :version "23.1" ;; No Gnus
296 297 298 299 300 301
  :group 'gnus-cite
  :group 'gnus-message
  :type 'boolean)

(autoload 'gnus-message-citation-mode "gnus-cite" nil t)

Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
302 303
;;; Internal variables.

304 305 306
(defvar gnus-inhibit-posting-styles nil
  "Inhibit the use of posting styles.")

307
(defvar gnus-article-yanked-articles nil)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
308 309
(defvar gnus-message-buffer "*Mail Gnus*")
(defvar gnus-article-copy nil)
310
(defvar gnus-check-before-posting nil)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
311
(defvar gnus-last-posting-server nil)
312
(defvar gnus-message-group-art nil)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
313

314 315
(defvar gnus-msg-force-broken-reply-to nil)

Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
316 317 318 319 320 321 322
(defconst gnus-bug-message
  "Sending a bug report to the Gnus Towers.
========================================

The buffer below is a mail buffer.  When you press `C-c C-c', it will
be sent to the Gnus Bug Exterminators.

323 324 325 326
The thing near the bottom of the buffer is how the environment
settings will be included in the mail.  Please do not delete that.
They will tell the Bug People what your environment is, so that it
will be easier to locate the bugs.
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
327 328 329 330 331 332 333 334 335 336

If you have found a bug that makes Emacs go \"beep\", set
debug-on-error to t (`M-x set-variable RET debug-on-error RET t RET')
and include the backtrace in your bug report.

Please describe the bug in annoying, painstaking detail.

Thank you for your help in stamping out bugs.
")

337
(autoload 'gnus-uu-post-news "gnus-uu" nil t)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
338 339 340 341 342 343 344 345


;;;
;;; Gnus Posting Functions
;;;

(gnus-define-keys (gnus-summary-send-map "S" gnus-summary-mode-map)
  "p" gnus-summary-post-news
346
  "i" gnus-summary-news-other-window
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
347 348 349 350 351
  "f" gnus-summary-followup
  "F" gnus-summary-followup-with-original
  "c" gnus-summary-cancel-article
  "s" gnus-summary-supersede-article
  "r" gnus-summary-reply
352
  "y" gnus-summary-yank-message
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
353
  "R" gnus-summary-reply-with-original
354
  "L" gnus-summary-reply-to-list-with-original
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
355 356
  "w" gnus-summary-wide-reply
  "W" gnus-summary-wide-reply-with-original
357 358
  "v" gnus-summary-very-wide-reply
  "V" gnus-summary-very-wide-reply-with-original
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
359 360 361 362 363
  "n" gnus-summary-followup-to-mail
  "N" gnus-summary-followup-to-mail-with-original
  "m" gnus-summary-mail-other-window
  "u" gnus-uu-post-news
  "\M-c" gnus-summary-mail-crosspost-complaint
364 365
  "Br" gnus-summary-reply-broken-reply-to
  "BR" gnus-summary-reply-broken-reply-to-with-original
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
366 367 368 369 370 371 372 373
  "om" gnus-summary-mail-forward
  "op" gnus-summary-post-forward
  "Om" gnus-uu-digest-mail-forward
  "Op" gnus-uu-digest-post-forward)

(gnus-define-keys (gnus-send-bounce-map "D" gnus-summary-send-map)
  "b" gnus-summary-resend-bounced-mail
  ;; "c" gnus-summary-send-draft
374 375
  "r" gnus-summary-resend-message
  "e" gnus-summary-resend-message-edit)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
376 377 378

;;; Internal functions.

379
(defun gnus-inews-make-draft (articles)
380 381
  `(lambda ()
     (gnus-inews-make-draft-meta-information
382
      ,(gnus-group-decoded-name gnus-newsgroup-name) ',articles)))
383

Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
384 385
(defvar gnus-article-reply nil)
(defmacro gnus-setup-message (config &rest forms)
386
  (let ((winconf (make-symbol "gnus-setup-message-winconf"))
387
	(winconf-name (make-symbol "gnus-setup-message-winconf-name"))
388 389
	(buffer (make-symbol "gnus-setup-message-buffer"))
	(article (make-symbol "gnus-setup-message-article"))
390
	(yanked (make-symbol "gnus-setup-yanked-articles"))
391
	(group (make-symbol "gnus-setup-message-group")))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
392
    `(let ((,winconf (current-window-configuration))
393
	   (,winconf-name gnus-current-window-configuration)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
394
	   (,buffer (buffer-name (current-buffer)))
395 396
	   (,article gnus-article-reply)
	   (,yanked gnus-article-yanked-articles)
397
	   (,group gnus-newsgroup-name)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
398
	   (message-header-setup-hook
399
	    (copy-sequence message-header-setup-hook))
400
	   (mbl mml-buffer-list)
401
	   (message-mode-hook (copy-sequence message-mode-hook)))
402
       (setq mml-buffer-list nil)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
403
       (add-hook 'message-header-setup-hook 'gnus-inews-insert-gcc)
Miles Bader's avatar
Miles Bader committed
404 405 406 407 408 409 410
       ;; message-newsreader and message-mailer were formerly set in
       ;; gnus-inews-add-send-actions, but this is too late when
       ;; message-generate-headers-first is used. --ansel
       (add-hook 'message-mode-hook
		 (lambda nil
		   (setq message-newsreader
			 (setq message-mailer (gnus-extended-version)))))
411 412 413 414 415 416 417 418 419 420 421 422 423 424 425
       ;; #### FIXME: for a reason that I did not manage to identify yet,
       ;; the variable `gnus-newsgroup-name' does not honor a dynamically
       ;; scoped or setq'ed value from a caller like `C-u gnus-summary-mail'.
       ;; After evaluation of @forms below, it gets the value we actually want
       ;; to override, and the posting styles are used. For that reason, I've
       ;; added an optional argument to `gnus-configure-posting-styles' to
       ;; make sure that the correct value for the group name is used. -- drv
       (add-hook 'message-mode-hook
		 (if (memq ,config '(reply-yank reply))
		     (lambda ()
		       (gnus-configure-posting-styles ,group))
		   (lambda ()
		     ;; There may be an old " *gnus article copy*" buffer.
		     (let (gnus-article-copy)
		       (gnus-configure-posting-styles ,group)))))
426
       (gnus-alist-pull ',(intern gnus-draft-meta-information-header)
427 428 429 430 431
		  message-required-headers)
       (when (and ,group
		  (not (string= ,group "")))
	 (push (cons
		(intern gnus-draft-meta-information-header)
432
		(gnus-inews-make-draft (or ,yanked ,article)))
433
	       message-required-headers))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
434
       (unwind-protect
435 436
	   (progn
	     ,@forms)
437
	 (gnus-inews-add-send-actions ,winconf ,buffer ,article ,config
438
				      ,yanked ,winconf-name)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
439
	 (setq gnus-message-buffer (current-buffer))
440 441
	 (set (make-local-variable 'gnus-message-group-art)
	      (cons ,group ,article))
442
	 (set (make-local-variable 'gnus-newsgroup-name) ,group)
443 444 445
	 ;; Enable highlighting of different citation levels
	 (when gnus-message-highlight-citation
	   (gnus-message-citation-mode 1))
446 447
	 (gnus-run-hooks 'gnus-message-setup-hook)
	 (if (eq major-mode 'message-mode)
448 449 450
	     (let ((mbl1 mml-buffer-list))
	       (setq mml-buffer-list mbl)  ;; Global value
	       (set (make-local-variable 'mml-buffer-list) mbl1);; Local value
451 452
	       (gnus-make-local-hook 'kill-buffer-hook)
	       (gnus-make-local-hook 'change-major-mode-hook)
453
	       (add-hook 'change-major-mode-hook 'mml-destroy-buffers nil t)
454 455 456
	       (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t))
	   (mml-destroy-buffers)
	   (setq mml-buffer-list mbl)))
457
       (message-hide-headers)
458
       (gnus-add-buffer)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
459
       (gnus-configure-windows ,config t)
460
       (run-hooks 'post-command-hook)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
461 462
       (set-buffer-modified-p nil))))

463 464 465 466 467 468 469 470 471 472 473 474 475 476
(defun gnus-inews-make-draft-meta-information (group articles)
  (when (numberp articles)
    (setq articles (list articles)))
  (concat "(\"" group "\""
	  (if articles
	      (concat " "
		      (mapconcat
		       (lambda (elem)
			 (number-to-string
			  (if (consp elem)
			      (car elem)
			    elem)))
		       articles " "))
	    "")
477 478
	  ")"))

479
;;;###autoload
480
(defun gnus-msg-mail (&optional to subject other-headers continue
481 482
				switch-action yank-action send-actions
				return-action)
483 484
  "Start editing a mail message to be sent.
Like `message-mail', but with Gnus paraphernalia, particularly the
485 486 487
Gcc: header for archiving purposes.
If Gnus isn't running, a plain `message-mail' setup is used
instead."
488
  (interactive)
489
  (if (not (gnus-alive-p))
490 491
      (message-mail to subject other-headers continue
                    nil yank-action send-actions return-action)
492 493 494 495 496 497 498 499 500 501 502
    (let ((buf (current-buffer))
	  mail-buf)
      (gnus-setup-message 'message
	(message-mail to subject other-headers continue
		      nil yank-action send-actions return-action))
      (when switch-action
	(setq mail-buf (current-buffer))
	(switch-to-buffer buf)
	(apply switch-action mail-buf nil))
      ;; COMPOSEFUNC should return t if succeed.  Undocumented ???
      t)))
503

504 505 506 507 508
;;;###autoload
(defun gnus-button-mailto (address)
  "Mail to ADDRESS."
  (set-buffer (gnus-copy-article-buffer))
  (gnus-setup-message 'message
509
    (message-reply address)))
510 511 512 513 514 515

;;;###autoload
(defun gnus-button-reply (&optional to-address wide)
  "Like `message-reply'."
  (interactive)
  (gnus-setup-message 'message
516
    (message-reply to-address wide)))
517

518 519
;;;###autoload
(define-mail-user-agent 'gnus-user-agent
520 521
  'gnus-msg-mail 'message-send-and-exit
  'message-kill-buffer 'message-send-hook)
522

523 524 525 526 527 528 529 530 531
(defun gnus-setup-posting-charset (group)
  (let ((alist gnus-group-posting-charset-alist)
	(group (or group ""))
	elem)
    (when group
      (catch 'found
	(while (setq elem (pop alist))
	  (when (or (and (stringp (car elem))
			 (string-match (car elem) group))
532
		    (and (functionp (car elem))
533 534 535 536 537
			 (funcall (car elem) group))
		    (and (symbolp (car elem))
			 (symbol-value (car elem))))
	    (throw 'found (cons (cadr elem) (caddr elem)))))))))

538
(defun gnus-inews-add-send-actions (winconf buffer article
539 540
					    &optional config yanked
					    winconf-name)
541
  (gnus-make-local-hook 'message-sent-hook)
542 543 544
  (add-hook 'message-sent-hook (if gnus-agent 'gnus-agent-possibly-do-gcc
				 'gnus-inews-do-gcc) nil t)
  (when gnus-agent
545
    (gnus-make-local-hook 'message-header-hook)
546
    (add-hook 'message-header-hook 'gnus-agent-possibly-save-gcc nil t))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
547
  (setq message-post-method
548
	`(lambda (&optional arg)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
549 550
	   (gnus-post-method arg ,gnus-newsgroup-name)))
  (message-add-action
551
   `(progn
552
      (setq gnus-current-window-configuration ',winconf-name)
553 554
      (when (gnus-buffer-exists-p ,buffer)
	(set-window-configuration ,winconf)))
555 556 557 558 559 560 561 562 563
   'exit 'postpone 'kill)
  (let ((to-be-marked (cond
		       (yanked
			(mapcar
			 (lambda (x) (if (listp x) (car x) x)) yanked))
		       (article (if (listp article) article (list article)))
		       (t nil))))
    (message-add-action
     `(when (gnus-buffer-exists-p ,buffer)
Stefan Monnier's avatar
Stefan Monnier committed
564
	(with-current-buffer ,buffer
565 566 567 568 569
	  ,(when to-be-marked
	     (if (eq config 'forward)
		 `(gnus-summary-mark-article-as-forwarded ',to-be-marked)
	       `(gnus-summary-mark-article-as-replied ',to-be-marked)))))
     'send)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
570 571 572 573 574 575

(put 'gnus-setup-message 'lisp-indent-function 1)
(put 'gnus-setup-message 'edebug-form-spec '(form body))

;;; Post news commands of Gnus group mode and summary mode

576 577 578 579 580 581 582 583
(defun gnus-group-mail (&optional arg)
  "Start composing a mail.
If ARG, use the group under the point to find a posting style.
If ARG is 1, prompt for a group name to find the posting style."
  (interactive "P")
  ;; We can't `let' gnus-newsgroup-name here, since that leads
  ;; to local variables leaking.
  (let ((group gnus-newsgroup-name)
584 585
	;; make sure last viewed article doesn't affect posting styles:
	(gnus-article-copy)
586 587 588 589 590 591
	(buffer (current-buffer)))
    (unwind-protect
	(progn
	  (setq gnus-newsgroup-name
		(if arg
		    (if (= 1 (prefix-numeric-value arg))
592
			(gnus-group-completing-read
593 594
			 "Use posting style of group"
			 nil (gnus-read-active-file-p))
595 596
		      (gnus-group-group-name))
		  ""))
597
	  ;; #### see comment in gnus-setup-message -- drv
598
	  (gnus-setup-message 'message (message-mail)))
Stefan Monnier's avatar
Stefan Monnier committed
599
      (with-current-buffer buffer
600
	(setq gnus-newsgroup-name group)))))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
601

602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621
(defun gnus-group-news (&optional arg)
  "Start composing a news.
If ARG, post to group under point.
If ARG is 1, prompt for group name to post to.

This function prepares a news even when using mail groups.  This is useful
for posting messages to mail groups without actually sending them over the
network.  The corresponding back end must have a 'request-post method."
  (interactive "P")
  ;; We can't `let' gnus-newsgroup-name here, since that leads
  ;; to local variables leaking.
  (let ((group gnus-newsgroup-name)
	;; make sure last viewed article doesn't affect posting styles:
	(gnus-article-copy)
	(buffer (current-buffer)))
    (unwind-protect
	(progn
	  (setq gnus-newsgroup-name
		(if arg
		    (if (= 1 (prefix-numeric-value arg))
622 623
			(gnus-group-completing-read "Use group"
						    nil
624
						    (gnus-read-active-file-p))
625 626 627 628 629
		      (gnus-group-group-name))
		  ""))
	  ;; #### see comment in gnus-setup-message -- drv
	  (gnus-setup-message 'message
	    (message-news (gnus-group-real-name gnus-newsgroup-name))))
Stefan Monnier's avatar
Stefan Monnier committed
630
      (with-current-buffer buffer
631 632
	(setq gnus-newsgroup-name group)))))

Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
633
(defun gnus-group-post-news (&optional arg)
634 635 636 637
  "Start composing a message (a news by default).
If ARG, post to group under point.  If ARG is 1, prompt for group name.
Depending on the selected group, the message might be either a mail or
a news."
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
638
  (interactive "P")
639
  ;; Bind this variable here to make message mode hooks work ok.
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
640 641 642
  (let ((gnus-newsgroup-name
	 (if arg
	     (if (= 1 (prefix-numeric-value arg))
643
		 (gnus-group-completing-read "Newsgroup" nil
644
					     (gnus-read-active-file-p))
645
	       (or (gnus-group-group-name) ""))
646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668
	   ""))
	;; make sure last viewed article doesn't affect posting styles:
	(gnus-article-copy))
    (gnus-post-news 'post gnus-newsgroup-name nil nil nil nil
		    (string= gnus-newsgroup-name ""))))

(defun gnus-summary-mail-other-window (&optional arg)
  "Start composing a mail in another window.
Use the posting of the current group by default.
If ARG, don't do that.  If ARG is 1, prompt for group name to find the
posting style."
  (interactive "P")
  ;; We can't `let' gnus-newsgroup-name here, since that leads
  ;; to local variables leaking.
  (let ((group gnus-newsgroup-name)
	;; make sure last viewed article doesn't affect posting styles:
	(gnus-article-copy)
	(buffer (current-buffer)))
    (unwind-protect
	(progn
	  (setq gnus-newsgroup-name
		(if arg
		    (if (= 1 (prefix-numeric-value arg))
669 670
			(gnus-group-completing-read "Use group"
						    nil
671
						    (gnus-read-active-file-p))
672 673 674 675
		      "")
		  gnus-newsgroup-name))
	  ;; #### see comment in gnus-setup-message -- drv
	  (gnus-setup-message 'message (message-mail)))
Stefan Monnier's avatar
Stefan Monnier committed
676
      (with-current-buffer buffer
677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698
	(setq gnus-newsgroup-name group)))))

(defun gnus-summary-news-other-window (&optional arg)
  "Start composing a news in another window.
Post to the current group by default.
If ARG, don't do that.  If ARG is 1, prompt for group name to post to.

This function prepares a news even when using mail groups.  This is useful
for posting messages to mail groups without actually sending them over the
network.  The corresponding back end must have a 'request-post method."
  (interactive "P")
  ;; We can't `let' gnus-newsgroup-name here, since that leads
  ;; to local variables leaking.
  (let ((group gnus-newsgroup-name)
	;; make sure last viewed article doesn't affect posting styles:
	(gnus-article-copy)
	(buffer (current-buffer)))
    (unwind-protect
	(progn
	  (setq gnus-newsgroup-name
		(if arg
		    (if (= 1 (prefix-numeric-value arg))
699 700
			(gnus-group-completing-read "Use group"
						    nil
701
						    (gnus-read-active-file-p))
702 703 704 705 706 707 708
		      "")
		  gnus-newsgroup-name))
	  ;; #### see comment in gnus-setup-message -- drv
	  (gnus-setup-message 'message
	    (progn
	      (message-news (gnus-group-real-name gnus-newsgroup-name))
	      (set (make-local-variable 'gnus-discouraged-post-methods)
709
		   (remove
710
		    (car (gnus-find-method-for-group gnus-newsgroup-name))
711
		    gnus-discouraged-post-methods)))))
Stefan Monnier's avatar
Stefan Monnier committed
712
      (with-current-buffer buffer
713 714 715 716 717 718 719 720 721 722 723 724
	(setq gnus-newsgroup-name group)))))

(defun gnus-summary-post-news (&optional arg)
  "Start composing a message.  Post to the current group by default.
If ARG, don't do that.  If ARG is 1, prompt for a group name to post to.
Depending on the selected group, the message might be either a mail or
a news."
  (interactive "P")
  ;; Bind this variable here to make message mode hooks work ok.
  (let ((gnus-newsgroup-name
	 (if arg
	     (if (= 1 (prefix-numeric-value arg))
725
		 (gnus-group-completing-read "Newsgroup" nil
726
					     (gnus-read-active-file-p))
727 728 729 730
	       "")
	   gnus-newsgroup-name))
	;; make sure last viewed article doesn't affect posting styles:
	(gnus-article-copy))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
731 732 733 734 735
    (gnus-post-news 'post gnus-newsgroup-name)))


(defun gnus-summary-followup (yank &optional force-news)
  "Compose a followup to an article.
736 737 738 739
If prefix argument YANK is non-nil, the original article is yanked
automatically.
YANK is a list of elements, where the car of each element is the
article number, and the cdr is the string to be yanked."
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
740 741 742 743
  (interactive
   (list (and current-prefix-arg
	      (gnus-summary-work-articles 1))))
  (when yank
744 745 746 747
    (gnus-summary-goto-subject
     (if (listp (car yank))
	 (caar yank)
       (car yank))))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
748 749 750 751 752 753 754
  (save-window-excursion
    (gnus-summary-select-article))
  (let ((headers (gnus-summary-article-header (gnus-summary-article-number)))
	(gnus-newsgroup-name gnus-newsgroup-name))
    ;; Send a followup.
    (gnus-post-news nil gnus-newsgroup-name
		    headers gnus-article-buffer
755 756
		    yank nil force-news)
    (gnus-summary-handle-replysign)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
757 758

(defun gnus-summary-followup-with-original (n &optional force-news)
759 760 761
  "Compose a followup to an article and include the original article.
The text in the region will be yanked.  If the region isn't
active, the entire article will be yanked."
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777
  (interactive "P")
  (gnus-summary-followup (gnus-summary-work-articles n) force-news))

(defun gnus-summary-followup-to-mail (&optional arg)
  "Followup to the current mail message via news."
  (interactive
   (list (and current-prefix-arg
	      (gnus-summary-work-articles 1))))
  (gnus-summary-followup arg t))

(defun gnus-summary-followup-to-mail-with-original (&optional arg)
  "Followup to the current mail message via news."
  (interactive "P")
  (gnus-summary-followup (gnus-summary-work-articles arg) t))

(defun gnus-inews-yank-articles (articles)
778
  (let (beg article yank-string)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
779 780
    (message-goto-body)
    (while (setq article (pop articles))
781 782 783
      (when (listp article)
	(setq yank-string (nth 1 article)
	      article (nth 0 article)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
784 785 786 787
      (save-window-excursion
	(set-buffer gnus-summary-buffer)
	(gnus-summary-select-article nil nil nil article)
	(gnus-summary-remove-process-mark article))
788
      (gnus-copy-article-buffer nil yank-string)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
789
      (let ((message-reply-buffer gnus-article-copy)
790 791 792 793 794 795
	    (message-reply-headers
	     ;; The headers are decoded.
	     (with-current-buffer gnus-article-copy
	       (save-restriction
		 (nnheader-narrow-to-headers)
		 (nnheader-parse-naked-head)))))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
796
	(message-yank-original)
Miles Bader's avatar
Miles Bader committed
797
	(message-exchange-point-and-mark)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
798 799 800 801 802 803
	(setq beg (or beg (mark t))))
      (when articles
	(insert "\n")))
    (push-mark)
    (goto-char beg)))

804 805 806 807 808 809
(defun gnus-summary-cancel-article (&optional n symp)
  "Cancel an article you posted.
Uses the process-prefix convention.  If given the symbolic
prefix `a', cancel using the standard posting method; if not
post using the current select method."
  (interactive (gnus-interactive "P\ny"))
810
  (let ((message-post-method
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
811
	 `(lambda (arg)
812 813
	    (gnus-post-method (eq ',symp 'a) ,gnus-newsgroup-name))))
    (dolist (article (gnus-summary-work-articles n))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
814 815 816 817 818 819 820 821 822 823 824 825 826
      (when (gnus-summary-select-article t nil nil article)
	(when (gnus-eval-in-buffer-window gnus-original-article-buffer
		(message-cancel-news))
	  (gnus-summary-mark-as-read article gnus-canceled-mark)
	  (gnus-cache-remove-article 1))
	(gnus-article-hide-headers-if-wanted))
      (gnus-summary-remove-process-mark article))))

(defun gnus-summary-supersede-article ()
  "Compose an article that will supersede a previous article.
This is done simply by taking the old article and adding a Supersedes
header line with the old Message-ID."
  (interactive)
Miles Bader's avatar
Miles Bader committed
827 828
  (let ((article (gnus-summary-article-number))
	(mail-parse-charset gnus-newsgroup-charset))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
829 830 831 832 833 834
    (gnus-setup-message 'reply-yank
      (gnus-summary-select-article t)
      (set-buffer gnus-original-article-buffer)
      (message-supersede)
      (push
       `((lambda ()
835
	   (when (gnus-buffer-exists-p ,gnus-summary-buffer)
Stefan Monnier's avatar
Stefan Monnier committed
836
	     (with-current-buffer ,gnus-summary-buffer
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
837 838
	       (gnus-cache-possibly-remove-article ,article nil nil nil t)
	       (gnus-summary-mark-as-read ,article gnus-canceled-mark)))))
Miles Bader's avatar
Miles Bader committed
839 840 841
       message-send-actions)
      ;; Add Gcc header.
      (gnus-inews-insert-gcc))))
842

Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
843 844


845
(defun gnus-copy-article-buffer (&optional article-buffer yank-string)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
846 847 848 849
  ;; make a copy of the article buffer with all text properties removed
  ;; this copy is in the buffer gnus-article-copy.
  ;; if ARTICLE-BUFFER is nil, gnus-article-buffer is used
  ;; this buffer should be passed to all mail/news reply/post routines.
850
  (setq gnus-article-copy (gnus-get-buffer-create " *gnus article copy*"))
Stefan Monnier's avatar
Stefan Monnier committed
851
  (with-current-buffer gnus-article-copy
852
    (mm-enable-multibyte))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
853
  (let ((article-buffer (or article-buffer gnus-article-buffer))
854
	end beg)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
855
    (if (not (and (get-buffer article-buffer)
856
		  (gnus-buffer-exists-p article-buffer)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
857
	(error "Can't find any article buffer")
Stefan Monnier's avatar
Stefan Monnier committed
858
      (with-current-buffer article-buffer
859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874
	(let ((gnus-newsgroup-charset (or gnus-article-charset
					  gnus-newsgroup-charset))
	      (gnus-newsgroup-ignored-charsets
	       (or gnus-article-ignored-charsets
		   gnus-newsgroup-ignored-charsets)))
	  (save-restriction
	    ;; Copy over the (displayed) article buffer, delete
	    ;; hidden text and remove text properties.
	    (widen)
	    (copy-to-buffer gnus-article-copy (point-min) (point-max))
	    (set-buffer gnus-article-copy)
	    (when yank-string
	      (message-goto-body)
	      (delete-region (point) (point-max))
	      (insert yank-string))
	    (gnus-article-delete-text-of-type 'annotation)
875
	    (gnus-article-delete-text-of-type 'multipart)
876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902
	    (gnus-remove-text-with-property 'gnus-prev)
	    (gnus-remove-text-with-property 'gnus-next)
	    (gnus-remove-text-with-property 'gnus-decoration)
	    (insert
	     (prog1
		 (buffer-substring-no-properties (point-min) (point-max))
	       (erase-buffer)))
	    ;; Find the original headers.
	    (set-buffer gnus-original-article-buffer)
	    (goto-char (point-min))
	    (while (looking-at message-unix-mail-delimiter)
	      (forward-line 1))
	    (let ((mail-header-separator ""))
	      (setq beg (point)
		    end (or (message-goto-body)
			    ;; There may be just a header.
			    (point-max))))
	    ;; Delete the headers from the displayed articles.
	    (set-buffer gnus-article-copy)
	    (let ((mail-header-separator ""))
	      (delete-region (goto-char (point-min))
			     (or (message-goto-body) (point-max))))
	    ;; Insert the original article headers.
	    (insert-buffer-substring gnus-original-article-buffer beg end)
	    ;; Decode charsets.
	    (let ((gnus-article-decode-hook
		   (delq 'article-decode-charset
903 904
			 (copy-sequence gnus-article-decode-hook)))
		  (rfc2047-quote-decoded-words-containing-tspecials t))
905
	      (run-hooks 'gnus-article-decode-hook)))))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
906 907 908 909 910 911
      gnus-article-copy)))

(defun gnus-post-news (post &optional group header article-buffer yank subject
			    force-news)
  (when article-buffer
    (gnus-copy-article-buffer))
912 913
  (let ((gnus-article-reply (and article-buffer (gnus-summary-article-number)))
	(gnus-article-yanked-articles yank)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
914 915 916 917 918
	(add-to-list gnus-add-to-list))
    (gnus-setup-message (cond (yank 'reply-yank)
			      (article-buffer 'reply)
			      (t 'message))
      (let* ((group (or group gnus-newsgroup-name))
919
	     (charset (gnus-group-name-charset nil group))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
920 921 922 923
	     (pgroup group)
	     to-address to-group mailing-list to-list
	     newsgroup-p)
	(when group
924
	  (setq to-address (gnus-parameter-to-address group)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
925
		to-group (gnus-group-find-parameter group 'to-group)
926
		to-list (gnus-parameter-to-list group)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
927 928 929
		newsgroup-p (gnus-group-find-parameter group 'newsgroup)
		mailing-list (when gnus-mailing-list-groups
			       (string-match gnus-mailing-list-groups group))
930 931
		group (gnus-group-name-decode (gnus-group-real-name group)
					      charset)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
932 933 934 935 936 937
	(if (or (and to-group
		     (gnus-news-group-p to-group))
		newsgroup-p
		force-news
		(and (gnus-news-group-p
		      (or pgroup gnus-newsgroup-name)
938
		      (or header gnus-current-article))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
939 940 941 942 943
		     (not mailing-list)
		     (not to-list)
		     (not to-address)))
	    ;; This is news.
	    (if post
944 945 946
		(message-news
		 (or to-group
		     (and (not (gnus-virtual-group-p pgroup)) group)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
947
	      (set-buffer gnus-article-copy)
948
	      (gnus-msg-treat-broken-reply-to)
949 950 951 952 953 954 955
	      (message-followup (if (or newsgroup-p force-news)
				    (if (save-restriction
					  (article-narrow-to-head)
					  (message-fetch-field "newsgroups"))
					nil
				      "")
				  to-group)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
956 957 958 959 960 961 962 963 964 965 966 967
	  ;; The is mail.
	  (if post
	      (progn
		(message-mail (or to-address to-list))
		;; Arrange for mail groups that have no `to-address' to
		;; get that when the user sends off the mail.
		(when (and (not to-list)
			   (not to-address)
			   add-to-list)
		  (push (list 'gnus-inews-add-to-address pgroup)
			message-send-actions)))
	    (set-buffer gnus-article-copy)
968 969
	    (gnus-msg-treat-broken-reply-to)
	    (message-wide-reply to-address)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
970 971 972
	(when yank
	  (gnus-inews-yank-articles yank))))))

973
(defun gnus-msg-treat-broken-reply-to (&optional force)
ShengHuo ZHU's avatar
Typos.  
ShengHuo ZHU committed
974
  "Remove the Reply-to header if broken-reply-to."
975 976 977
  (when (or force
	    (gnus-group-find-parameter
	     gnus-newsgroup-name 'broken-reply-to))
978 979 980 981
    (save-restriction
      (message-narrow-to-head)
      (message-remove-header "reply-to"))))

Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
982 983 984
(defun gnus-post-method (arg group &optional silent)
  "Return the posting method based on GROUP and ARG.
If SILENT, don't prompt the user."
985 986 987
  (let ((gnus-post-method (or (gnus-parameter-post-method group)
			      gnus-post-method))
	(group-method (gnus-find-method-for-group group)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
988 989 990 991
    (cond
     ;; If the group-method is nil (which shouldn't happen) we use
     ;; the default method.
     ((null group-method)
992 993 994 995 996
      (or (and (listp gnus-post-method)	;If not current/native/nil
	       (not (listp (car gnus-post-method))) ; and not a list of methods
	       gnus-post-method)	;then use it.
	  gnus-select-method
	  message-post-method))
997
     ;; We want the inverse of the default
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
998
     ((and arg (not (eq arg 0)))
999
      (if (eq gnus-post-method 'current)
1000 1001
	  gnus-select-method
	group-method))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1002 1003
     ;; We query the user for a post method.
     ((or arg
1004
	  (and (listp gnus-post-method)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1005 1006 1007 1008
	       (listp (car gnus-post-method))))
      (let* ((methods
	      ;; Collect all methods we know about.
	      (append
1009
	       (when (listp gnus-post-method)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1010 1011 1012 1013
		 (if (listp (car gnus-post-method))
		     gnus-post-method
		   (list gnus-post-method)))
	       gnus-secondary-select-methods
1014
	       (mapcar 'cdr gnus-server-alist)
1015
	       (mapcar 'car gnus-opened-servers)
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1016 1017 1018 1019 1020 1021
	       (list gnus-select-method)
	       (list group-method)))
	     method-alist post-methods method)
	;; Weed out all mail methods.
	(while methods
	  (setq method (gnus-server-get-method "" (pop methods)))
1022 1023 1024
	  (when (and (or (gnus-method-option-p method 'post)
			 (gnus-method-option-p method 'post-mail))
		     (not (member method post-methods)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1025 1026 1027 1028 1029
	    (push method post-methods)))
	;; Create a name-method alist.
	(setq method-alist
	      (mapcar
	       (lambda (m)
1030 1031 1032
		 (if (equal (cadr m) "")
		     (list (symbol-name (car m)) m)
		   (list (concat (cadr m) " (" (symbol-name (car m)) ")") m)))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1033 1034 1035 1036 1037 1038 1039 1040 1041
	       post-methods))
	;; Query the user.
	(cadr
	 (assoc
	  (setq gnus-last-posting-server
		(if (and silent
			 gnus-last-posting-server)
		    ;; Just use the last value.
		    gnus-last-posting-server
1042 1043
		  (gnus-completing-read
		   "Posting method" (mapcar 'car method-alist) t
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1044 1045 1046
		   (cons (or gnus-last-posting-server "") 0))))
	  method-alist))))
     ;; Override normal method.
1047
     ((and (eq gnus-post-method 'current)
1048 1049 1050
	   (not (memq (car group-method) gnus-discouraged-post-methods))
	   (gnus-get-function group-method 'request-post t))
      (assert (not arg))
1051
      group-method)
1052 1053 1054
     ;; Use gnus-post-method.
     ((listp gnus-post-method)		;A method...
      (assert (not (listp (car gnus-post-method)))) ;... not a list of methods.
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1055
      gnus-post-method)
1056
     ;; Use the normal select method (nil or native).
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1057 1058 1059 1060 1061
     (t gnus-select-method))))



(defun gnus-extended-version ()
1062 1063
  "Stringified Gnus version and Emacs version.
See the variable `gnus-user-agent'."
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1064
  (interactive)
1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076
  (if (stringp gnus-user-agent)
      gnus-user-agent
    ;; `gnus-user-agent' is a list:
    (let* ((float-output-format nil)
	   (gnus-v
	    (when (memq 'gnus gnus-user-agent)
	      (concat "Gnus/"
		      (prin1-to-string (gnus-continuum-version gnus-version) t)
		      " (" gnus-version ")")))
	   (emacs-v (gnus-emacs-version)))
      (concat gnus-v (when (and gnus-v emacs-v) " ")
	      emacs-v))))
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1077 1078 1079 1080 1081 1082 1083 1084


;;;
;;; Gnus Mail Functions
;;;

;;; Mail reply commands of Gnus summary mode

1085 1086
(defun gnus-summary-reply (&optional yank wide very-wide)
  "Start composing a mail reply to the current message.
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1087
If prefix argument YANK is non-nil, the original article is yanked
1088 1089 1090
automatically.
If WIDE, make a wide reply.
If VERY-WIDE, make a very wide reply."
Lars Magne Ingebrigtsen's avatar
Lars Magne Ingebrigtsen committed
1091 1092 1093
  (interactive
   (list (and current-prefix-arg
	      (gnus-summary-work-articles 1))))
1094 1095
  ;; Allow user to require confirmation before replying by mail to the
  ;; author of a news article (or mail message).
1096
  (when (or (not (or (gnus-news-group-p gnus-newsgroup-name)
1097