code.delx.au - gnu-emacs/blob - lisp/gnus/gnus-msg.el

   1 ;;; gnus-msg.el --- mail and post interface for Gnus
   2 ;; Copyright (C) 1995,96,97 Free Software Foundation, Inc.
   3
   4 ;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
   5 ;;      Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
   6 ;; Keywords: news
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Commentary:
  26
  27 ;;; Code:
  28
  29 (eval-when-compile (require 'cl))
  30
  31 (require 'gnus)
  32 (require 'gnus-ems)
  33 (require 'message)
  34 (require 'gnus-art)
  35
  36 ;; Added by Sudish Joseph <joseph@cis.ohio-state.edu>.
  37 (defvar gnus-post-method nil
  38   "*Preferred method for posting USENET news.
  39 If this variable is nil, Gnus will use the current method to decide
  40 which method to use when posting.  If it is non-nil, it will override
  41 the current method.  This method will not be used in mail groups and
  42 the like, only in \"real\" newsgroups.
  43
  44 The value must be a valid method as discussed in the documentation of
  45 `gnus-select-method'.  It can also be a list of methods.  If that is
  46 the case, the user will be queried for what select method to use when
  47 posting.")
  48
  49 (defvar gnus-outgoing-message-group nil
  50   "*All outgoing messages will be put in this group.
  51 If you want to store all your outgoing mail and articles in the group
  52 \"nnml:archive\", you set this variable to that value.  This variable
  53 can also be a list of group names.
  54
  55 If you want to have greater control over what group to put each
  56 message in, you can set this variable to a function that checks the
  57 current newsgroup name and then returns a suitable group name (or list
  58 of names).")
  59
  60 (defvar gnus-mailing-list-groups nil
  61   "*Regexp matching groups that are really mailing lists.
  62 This is useful when you're reading a mailing list that has been
  63 gatewayed to a newsgroup, and you want to followup to an article in
  64 the group.")
  65
  66 (defvar gnus-add-to-list nil
  67   "*If non-nil, add a `to-list' parameter automatically.")
  68
  69 (defvar gnus-sent-message-ids-file
  70   (nnheader-concat gnus-directory "Sent-Message-IDs")
  71   "File where Gnus saves a cache of sent message ids.")
  72
  73 (defvar gnus-sent-message-ids-length 1000
  74   "The number of sent Message-IDs to save.")
  75
  76 (defvar gnus-crosspost-complaint
  77   "Hi,
  78
  79 You posted the article below with the following Newsgroups header:
  80
  81 Newsgroups: %s
  82
  83 The %s group, at least, was an inappropriate recipient
  84 of this message.  Please trim your Newsgroups header to exclude this
  85 group before posting in the future.
  86
  87 Thank you.
  88
  89 "
  90   "Format string to be inserted when complaining about crossposts.
  91 The first %s will be replaced by the Newsgroups header;
  92 the second with the current group name.")
  93
  94 (defvar gnus-message-setup-hook nil
  95   "Hook run after setting up a message buffer.")
  96
  97 ;;; Internal variables.
  98
  99 (defvar gnus-message-buffer "*Mail Gnus*")
 100 (defvar gnus-article-copy nil)
 101 (defvar gnus-last-posting-server nil)
 102
 103 (defconst gnus-bug-message
 104   "Sending a bug report to the Gnus Towers.
 105 ========================================
 106
 107 The buffer below is a mail buffer.  When you press `C-c C-c', it will
 108 be sent to the Gnus Bug Exterminators.
 109
 110 At the bottom of the buffer you'll see lots of variable settings.
 111 Please do not delete those.  They will tell the Bug People what your
 112 environment is, so that it will be easier to locate the bugs.
 113
 114 If you have found a bug that makes Emacs go \"beep\", set
 115 debug-on-error to t (`M-x set-variable RET debug-on-error RET t RET')
 116 and include the backtrace in your bug report.
 117
 118 Please describe the bug in annoying, painstaking detail.
 119
 120 Thank you for your help in stamping out bugs.
 121 ")
 122
 123 (eval-and-compile
 124   (autoload 'gnus-uu-post-news "gnus-uu" nil t)
 125   (autoload 'news-setup "rnewspost")
 126   (autoload 'news-reply-mode "rnewspost")
 127   (autoload 'rmail-dont-reply-to "mail-utils")
 128   (autoload 'rmail-output "rmailout"))
 129
 130 \f
 131 ;;;
 132 ;;; Gnus Posting Functions
 133 ;;;
 134
 135 (gnus-define-keys (gnus-summary-send-map "S" gnus-summary-mode-map)
 136   "p" gnus-summary-post-news
 137   "f" gnus-summary-followup
 138   "F" gnus-summary-followup-with-original
 139   "c" gnus-summary-cancel-article
 140   "s" gnus-summary-supersede-article
 141   "r" gnus-summary-reply
 142   "R" gnus-summary-reply-with-original
 143   "w" gnus-summary-wide-reply
 144   "W" gnus-summary-wide-reply-with-original
 145   "n" gnus-summary-followup-to-mail
 146   "N" gnus-summary-followup-to-mail-with-original
 147   "m" gnus-summary-mail-other-window
 148   "u" gnus-uu-post-news
 149   "\M-c" gnus-summary-mail-crosspost-complaint
 150   "om" gnus-summary-mail-forward
 151   "op" gnus-summary-post-forward
 152   "Om" gnus-uu-digest-mail-forward
 153   "Op" gnus-uu-digest-post-forward)
 154
 155 (gnus-define-keys (gnus-send-bounce-map "D" gnus-summary-send-map)
 156   "b" gnus-summary-resend-bounced-mail
 157   ;; "c" gnus-summary-send-draft
 158   "r" gnus-summary-resend-message)
 159
 160 ;;; Internal functions.
 161
 162 (defvar gnus-article-reply nil)
 163 (defmacro gnus-setup-message (config &rest forms)
 164   (let ((winconf (make-symbol "winconf"))
 165         (buffer (make-symbol "buffer"))
 166         (article (make-symbol "article")))
 167     `(let ((,winconf (current-window-configuration))
 168            (,buffer (buffer-name (current-buffer)))
 169            (,article (and gnus-article-reply (gnus-summary-article-number)))
 170            (message-header-setup-hook
 171             (copy-sequence message-header-setup-hook)))
 172        (add-hook 'message-header-setup-hook 'gnus-inews-insert-gcc)
 173        (add-hook 'message-header-setup-hook 'gnus-inews-insert-archive-gcc)
 174        (unwind-protect
 175            ,@forms
 176          (gnus-inews-add-send-actions ,winconf ,buffer ,article)
 177          (setq gnus-message-buffer (current-buffer))
 178          (make-local-variable 'gnus-newsgroup-name)
 179          (run-hooks 'gnus-message-setup-hook))
 180        (gnus-configure-windows ,config t)
 181        (set-buffer-modified-p nil))))
 182
 183 (defun gnus-inews-add-send-actions (winconf buffer article)
 184   (make-local-hook 'message-sent-hook)
 185   (add-hook 'message-sent-hook 'gnus-inews-do-gcc nil t)
 186   (setq message-post-method
 187         `(lambda (arg)
 188            (gnus-post-method arg ,gnus-newsgroup-name)))
 189   (setq message-newsreader (setq message-mailer (gnus-extended-version)))
 190   (message-add-action
 191    `(set-window-configuration ,winconf) 'exit 'postpone 'kill)
 192   (message-add-action
 193    `(when (buffer-name (get-buffer ,buffer))
 194       (save-excursion
 195         (set-buffer (get-buffer ,buffer))
 196         ,(when article
 197            `(gnus-summary-mark-article-as-replied ,article))))
 198    'send))
 199
 200 (put 'gnus-setup-message 'lisp-indent-function 1)
 201 (put 'gnus-setup-message 'edebug-form-spec '(form body))
 202
 203 ;;; Post news commands of Gnus group mode and summary mode
 204
 205 (defun gnus-group-mail ()
 206   "Start composing a mail."
 207   (interactive)
 208   (gnus-setup-message 'message
 209     (message-mail)))
 210
 211 (defun gnus-group-post-news (&optional arg)
 212   "Start composing a news message.
 213 If ARG, post to the group under point.
 214 If ARG is 1, prompt for a group name."
 215   (interactive "P")
 216   ;; Bind this variable here to make message mode hooks
 217   ;; work ok.
 218   (let ((gnus-newsgroup-name
 219          (if arg
 220              (if (= 1 (prefix-numeric-value arg))
 221                  (completing-read "Newsgroup: " gnus-active-hashtb nil
 222                                   (gnus-read-active-file-p))
 223                (gnus-group-group-name))
 224            "")))
 225     (gnus-post-news 'post gnus-newsgroup-name)))
 226
 227 (defun gnus-summary-post-news ()
 228   "Start composing a news message."
 229   (interactive)
 230   (gnus-set-global-variables)
 231   (gnus-post-news 'post gnus-newsgroup-name))
 232
 233 (defun gnus-summary-followup (yank &optional force-news)
 234   "Compose a followup to an article.
 235 If prefix argument YANK is non-nil, original article is yanked automatically."
 236   (interactive
 237    (list (and current-prefix-arg
 238               (gnus-summary-work-articles 1))))
 239   (gnus-set-global-variables)
 240   (when yank
 241     (gnus-summary-goto-subject (car yank)))
 242   (save-window-excursion
 243     (gnus-summary-select-article))
 244   (let ((headers (gnus-summary-article-header (gnus-summary-article-number)))
 245         (gnus-newsgroup-name gnus-newsgroup-name))
 246     ;; Send a followup.
 247     (gnus-post-news nil gnus-newsgroup-name
 248                     headers gnus-article-buffer
 249                     yank nil force-news)))
 250
 251 (defun gnus-summary-followup-with-original (n &optional force-news)
 252   "Compose a followup to an article and include the original article."
 253   (interactive "P")
 254   (gnus-summary-followup (gnus-summary-work-articles n) force-news))
 255
 256 (defun gnus-summary-followup-to-mail (&optional arg)
 257   "Followup to the current mail message via news."
 258   (interactive
 259    (list (and current-prefix-arg
 260               (gnus-summary-work-articles 1))))
 261   (gnus-summary-followup arg t))
 262
 263 (defun gnus-summary-followup-to-mail-with-original (&optional arg)
 264   "Followup to the current mail message via news."
 265   (interactive "P")
 266   (gnus-summary-followup (gnus-summary-work-articles arg) t))
 267
 268 (defun gnus-inews-yank-articles (articles)
 269   (let (beg article)
 270     (message-goto-body)
 271     (while (setq article (pop articles))
 272       (save-window-excursion
 273         (set-buffer gnus-summary-buffer)
 274         (gnus-summary-select-article nil nil nil article)
 275         (gnus-summary-remove-process-mark article))
 276       (gnus-copy-article-buffer)
 277       (let ((message-reply-buffer gnus-article-copy)
 278             (message-reply-headers gnus-current-headers))
 279         (message-yank-original)
 280         (setq beg (or beg (mark t))))
 281       (when articles
 282         (insert "\n")))
 283     (push-mark)
 284     (goto-char beg)))
 285
 286 (defun gnus-summary-cancel-article (n)
 287   "Cancel an article you posted."
 288   (interactive "P")
 289   (gnus-set-global-variables)
 290   (let ((articles (gnus-summary-work-articles n))
 291         (message-post-method
 292          `(lambda (arg)
 293             (gnus-post-method nil ,gnus-newsgroup-name)))
 294         article)
 295     (while (setq article (pop articles))
 296       (when (gnus-summary-select-article t nil nil article)
 297         (when (gnus-eval-in-buffer-window gnus-original-article-buffer
 298                 (message-cancel-news))
 299           (gnus-summary-mark-as-read article gnus-canceled-mark)
 300           (gnus-cache-remove-article 1))
 301         (gnus-article-hide-headers-if-wanted))
 302       (gnus-summary-remove-process-mark article))))
 303
 304 (defun gnus-summary-supersede-article ()
 305   "Compose an article that will supersede a previous article.
 306 This is done simply by taking the old article and adding a Supersedes
 307 header line with the old Message-ID."
 308   (interactive)
 309   (gnus-set-global-variables)
 310   (let ((article (gnus-summary-article-number)))
 311     (gnus-setup-message 'reply-yank
 312       (gnus-summary-select-article t)
 313       (set-buffer gnus-original-article-buffer)
 314       (message-supersede)
 315       (push
 316        `((lambda ()
 317            (when (buffer-name (get-buffer ,gnus-summary-buffer))
 318              (save-excursion
 319                (set-buffer (get-buffer ,gnus-summary-buffer))
 320                (gnus-cache-possibly-remove-article ,article nil nil nil t)
 321                (gnus-summary-mark-as-read ,article gnus-canceled-mark)))))
 322        message-send-actions))))
 323
 324 \f
 325
 326 (defun gnus-copy-article-buffer (&optional article-buffer)
 327   ;; make a copy of the article buffer with all text properties removed
 328   ;; this copy is in the buffer gnus-article-copy.
 329   ;; if ARTICLE-BUFFER is nil, gnus-article-buffer is used
 330   ;; this buffer should be passed to all mail/news reply/post routines.
 331   (setq gnus-article-copy (get-buffer-create " *gnus article copy*"))
 332   (buffer-disable-undo gnus-article-copy)
 333   (or (memq gnus-article-copy gnus-buffer-list)
 334       (push gnus-article-copy gnus-buffer-list))
 335   (let ((article-buffer (or article-buffer gnus-article-buffer))
 336         end beg contents)
 337     (if (not (and (get-buffer article-buffer)
 338                   (buffer-name (get-buffer article-buffer))))
 339         (error "Can't find any article buffer")
 340       (save-excursion
 341         (set-buffer article-buffer)
 342         (save-restriction
 343           ;; Copy over the (displayed) article buffer, delete
 344           ;; hidden text and remove text properties.
 345           (widen)
 346           (copy-to-buffer gnus-article-copy (point-min) (point-max))
 347           (set-buffer gnus-article-copy)
 348           (gnus-article-delete-text-of-type 'annotation)
 349           (gnus-remove-text-with-property 'gnus-prev)
 350           (gnus-remove-text-with-property 'gnus-next)
 351           (insert
 352            (prog1
 353                (format "%s" (buffer-string))
 354              (erase-buffer)))
 355           ;; Find the original headers.
 356           (set-buffer gnus-original-article-buffer)
 357           (goto-char (point-min))
 358           (while (looking-at message-unix-mail-delimiter)
 359             (forward-line 1))
 360           (setq beg (point))
 361           (setq end (or (search-forward "\n\n" nil t) (point)))
 362           ;; Delete the headers from the displayed articles.
 363           (set-buffer gnus-article-copy)
 364           (delete-region (goto-char (point-min))
 365                          (or (search-forward "\n\n" nil t) (point)))
 366           ;; Insert the original article headers.
 367           (insert-buffer-substring gnus-original-article-buffer beg end)
 368           (gnus-article-decode-rfc1522)))
 369       gnus-article-copy)))
 370
 371 (defun gnus-post-news (post &optional group header article-buffer yank subject
 372                             force-news)
 373   (when article-buffer
 374     (gnus-copy-article-buffer))
 375   (let ((gnus-article-reply article-buffer)
 376         (add-to-list gnus-add-to-list))
 377     (gnus-setup-message (cond (yank 'reply-yank)
 378                               (article-buffer 'reply)
 379                               (t 'message))
 380       (let* ((group (or group gnus-newsgroup-name))
 381              (pgroup group)
 382              to-address to-group mailing-list to-list
 383              newsgroup-p)
 384         (when group
 385           (setq to-address (gnus-group-find-parameter group 'to-address)
 386                 to-group (gnus-group-find-parameter group 'to-group)
 387                 to-list (gnus-group-find-parameter group 'to-list)
 388                 newsgroup-p (gnus-group-find-parameter group 'newsgroup)
 389                 mailing-list (when gnus-mailing-list-groups
 390                                (string-match gnus-mailing-list-groups group))
 391                 group (gnus-group-real-name group)))
 392         (if (or (and to-group
 393                      (gnus-news-group-p to-group))
 394                 newsgroup-p
 395                 force-news
 396                 (and (gnus-news-group-p
 397                       (or pgroup gnus-newsgroup-name)
 398                       (if header (mail-header-number header)
 399                         gnus-current-article))
 400                      (not mailing-list)
 401                      (not to-list)
 402                      (not to-address)))
 403             ;; This is news.
 404             (if post
 405                 (message-news (or to-group group))
 406               (set-buffer gnus-article-copy)
 407               (message-followup (if (or newsgroup-p force-news) nil to-group)))
 408           ;; The is mail.
 409           (if post
 410               (progn
 411                 (message-mail (or to-address to-list))
 412                 ;; Arrange for mail groups that have no `to-address' to
 413                 ;; get that when the user sends off the mail.
 414                 (when (and (not to-list)
 415                            (not to-address)
 416                            add-to-list)
 417                   (push (list 'gnus-inews-add-to-address pgroup)
 418                         message-send-actions)))
 419             (set-buffer gnus-article-copy)
 420             (message-wide-reply to-address
 421                                 (gnus-group-find-parameter
 422                                  gnus-newsgroup-name 'broken-reply-to))))
 423         (when yank
 424           (gnus-inews-yank-articles yank))))))
 425
 426 (defun gnus-post-method (arg group &optional silent)
 427   "Return the posting method based on GROUP and ARG.
 428 If SILENT, don't prompt the user."
 429   (let ((group-method (gnus-find-method-for-group group)))
 430     (cond
 431      ;; If the group-method is nil (which shouldn't happen) we use
 432      ;; the default method.
 433      ((null group-method)
 434       (or gnus-post-method gnus-select-method message-post-method))
 435      ;; We want this group's method.
 436      ((and arg (not (eq arg 0)))
 437       group-method)
 438      ;; We query the user for a post method.
 439      ((or arg
 440           (and gnus-post-method
 441                (listp (car gnus-post-method))))
 442       (let* ((methods
 443               ;; Collect all methods we know about.
 444               (append
 445                (when gnus-post-method
 446                  (if (listp (car gnus-post-method))
 447                      gnus-post-method
 448                    (list gnus-post-method)))
 449                gnus-secondary-select-methods
 450                (list gnus-select-method)
 451                (list group-method)))
 452              method-alist post-methods method)
 453         ;; Weed out all mail methods.
 454         (while methods
 455           (setq method (gnus-server-get-method "" (pop methods)))
 456           (when (or (gnus-method-option-p method 'post)
 457                     (gnus-method-option-p method 'post-mail))
 458             (push method post-methods)))
 459         ;; Create a name-method alist.
 460         (setq method-alist
 461               (mapcar
 462                (lambda (m)
 463                  (list (concat (cadr m) " (" (symbol-name (car m)) ")") m))
 464                post-methods))
 465         ;; Query the user.
 466         (cadr
 467          (assoc
 468           (setq gnus-last-posting-server
 469                 (if (and silent
 470                          gnus-last-posting-server)
 471                     ;; Just use the last value.
 472                     gnus-last-posting-server
 473                   (completing-read
 474                    "Posting method: " method-alist nil t
 475                    (cons (or gnus-last-posting-server "") 0))))
 476           method-alist))))
 477      ;; Override normal method.
 478      (gnus-post-method
 479       gnus-post-method)
 480      ;; Use the normal select method.
 481      (t gnus-select-method))))
 482
 483 ;;;
 484 ;;; Check whether the message has been sent already.
 485 ;;;
 486
 487 (defvar gnus-inews-sent-ids nil)
 488
 489 (defun gnus-inews-reject-message ()
 490   "Check whether this message has already been sent."
 491   (when gnus-sent-message-ids-file
 492     (let ((message-id (save-restriction (message-narrow-to-headers)
 493                                         (mail-fetch-field "message-id")))
 494           end)
 495       (when message-id
 496         (unless gnus-inews-sent-ids
 497           (ignore-errors
 498             (load t t t)))
 499         (if (member message-id gnus-inews-sent-ids)
 500             ;; Reject this message.
 501             (not (gnus-yes-or-no-p
 502                   (format "Message %s already sent.  Send anyway? "
 503                           message-id)))
 504           (push message-id gnus-inews-sent-ids)
 505           ;; Chop off the last Message-IDs.
 506           (when (setq end (nthcdr gnus-sent-message-ids-length
 507                                   gnus-inews-sent-ids))
 508             (setcdr end nil))
 509           (nnheader-temp-write gnus-sent-message-ids-file
 510             (gnus-prin1 `(setq gnus-inews-sent-ids ',gnus-inews-sent-ids)))
 511           nil)))))
 512
 513 \f
 514
 515 ;; Dummy to avoid byte-compile warning.
 516 (defvar nnspool-rejected-article-hook)
 517
 518 ;;; Since the X-Newsreader/X-Mailer are ``vanity'' headers, they might
 519 ;;; as well include the Emacs version as well.
 520 ;;; The following function works with later GNU Emacs, and XEmacs.
 521 (defun gnus-extended-version ()
 522   "Stringified Gnus version and Emacs version"
 523   (interactive)
 524   (concat
 525    gnus-version
 526    "/"
 527    (cond
 528     ((string-match "^\\([0-9]+\\.[0-9]+\\)\\.[.0-9]+$" emacs-version)
 529      (concat "Emacs " (substring emacs-version
 530                                  (match-beginning 1)
 531                                  (match-end 1))))
 532     ((string-match "\\([A-Z]*[Mm][Aa][Cc][Ss]\\)[^(]*\\(\\((beta.*)\\|'\\)\\)?"
 533                    emacs-version)
 534      (concat (substring emacs-version
 535                         (match-beginning 1)
 536                         (match-end 1))
 537              (format " %d.%d" emacs-major-version emacs-minor-version)
 538              (if (match-beginning 3)
 539                  (substring emacs-version
 540                             (match-beginning 3)
 541                             (match-end 3))
 542                "")))
 543     (t emacs-version))))
 544
 545 ;; Written by "Mr. Per Persson" <pp@gnu.ai.mit.edu>.
 546 (defun gnus-inews-insert-mime-headers ()
 547   (goto-char (point-min))
 548   (let ((mail-header-separator
 549          (progn
 550            (goto-char (point-min))
 551            (if (and (search-forward (concat "\n" mail-header-separator "\n")
 552                                     nil t)
 553                     (not (search-backward "\n\n" nil t)))
 554                mail-header-separator
 555              ""))))
 556     (or (mail-position-on-field "Mime-Version")
 557         (insert "1.0")
 558         (cond ((save-restriction
 559                  (widen)
 560                  (goto-char (point-min))
 561                  (re-search-forward "[\200-\377]" nil t))
 562                (or (mail-position-on-field "Content-Type")
 563                    (insert "text/plain; charset=ISO-8859-1"))
 564                (or (mail-position-on-field "Content-Transfer-Encoding")
 565                    (insert "8bit")))
 566               (t (or (mail-position-on-field "Content-Type")
 567                      (insert "text/plain; charset=US-ASCII"))
 568                  (or (mail-position-on-field "Content-Transfer-Encoding")
 569                      (insert "7bit")))))))
 570
 571 \f
 572 ;;;
 573 ;;; Gnus Mail Functions
 574 ;;;
 575
 576 ;;; Mail reply commands of Gnus summary mode
 577
 578 (defun gnus-summary-reply (&optional yank wide)
 579   "Start composing a reply mail to the current message.
 580 If prefix argument YANK is non-nil, the original article is yanked
 581 automatically."
 582   (interactive
 583    (list (and current-prefix-arg
 584               (gnus-summary-work-articles 1))))
 585   ;; Stripping headers should be specified with mail-yank-ignored-headers.
 586   (gnus-set-global-variables)
 587   (when yank
 588     (gnus-summary-goto-subject (car yank)))
 589   (let ((gnus-article-reply t))
 590     (gnus-setup-message (if yank 'reply-yank 'reply)
 591       (gnus-summary-select-article)
 592       (set-buffer (gnus-copy-article-buffer))
 593       (message-reply nil wide (gnus-group-find-parameter
 594                                gnus-newsgroup-name 'broken-reply-to))
 595       (when yank
 596         (gnus-inews-yank-articles yank)))))
 597
 598 (defun gnus-summary-reply-with-original (n &optional wide)
 599   "Start composing a reply mail to the current message.
 600 The original article will be yanked."
 601   (interactive "P")
 602   (gnus-summary-reply (gnus-summary-work-articles n) wide))
 603
 604 (defun gnus-summary-wide-reply (&optional yank)
 605   "Start composing a wide reply mail to the current message.
 606 If prefix argument YANK is non-nil, the original article is yanked
 607 automatically."
 608   (interactive
 609    (list (and current-prefix-arg
 610               (gnus-summary-work-articles 1))))
 611   (gnus-summary-reply yank t))
 612
 613 (defun gnus-summary-wide-reply-with-original (n)
 614   "Start composing a wide reply mail to the current message.
 615 The original article will be yanked."
 616   (interactive "P")
 617   (gnus-summary-reply-with-original n t))
 618
 619 (defun gnus-summary-mail-forward (&optional full-headers post)
 620   "Forward the current message to another user.
 621 If FULL-HEADERS (the prefix), include full headers when forwarding."
 622   (interactive "P")
 623   (gnus-set-global-variables)
 624   (gnus-setup-message 'forward
 625     (gnus-summary-select-article)
 626     (set-buffer gnus-original-article-buffer)
 627     (let ((message-included-forward-headers
 628            (if full-headers "" message-included-forward-headers)))
 629       (message-forward post))))
 630
 631 (defun gnus-summary-resend-message (address n)
 632   "Resend the current article to ADDRESS."
 633   (interactive "sResend message(s) to: \nP")
 634   (let ((articles (gnus-summary-work-articles n))
 635         article)
 636     (while (setq article (pop articles))
 637       (gnus-summary-select-article nil nil nil article)
 638       (save-excursion
 639         (set-buffer gnus-original-article-buffer)
 640         (message-resend address)))))
 641
 642 (defun gnus-summary-post-forward (&optional full-headers)
 643   "Forward the current article to a newsgroup.
 644 If FULL-HEADERS (the prefix), include full headers when forwarding."
 645   (interactive "P")
 646   (gnus-summary-mail-forward full-headers t))
 647
 648 (defvar gnus-nastygram-message
 649   "The following article was inappropriately posted to %s.\n\n"
 650   "Format string to insert in nastygrams.
 651 The current group name will be inserted at \"%s\".")
 652
 653 (defun gnus-summary-mail-nastygram (n)
 654   "Send a nastygram to the author of the current article."
 655   (interactive "P")
 656   (when (or gnus-expert-user
 657             (gnus-y-or-n-p
 658              "Really send a nastygram to the author of the current article? "))
 659     (let ((group gnus-newsgroup-name))
 660       (gnus-summary-reply-with-original n)
 661       (set-buffer gnus-message-buffer)
 662       (message-goto-body)
 663       (insert (format gnus-nastygram-message group))
 664       (message-send-and-exit))))
 665
 666 (defun gnus-summary-mail-crosspost-complaint (n)
 667   "Send a complaint about crossposting to the current article(s)."
 668   (interactive "P")
 669   (let ((articles (gnus-summary-work-articles n))
 670         article)
 671     (while (setq article (pop articles))
 672       (set-buffer gnus-summary-buffer)
 673       (gnus-summary-goto-subject article)
 674       (let ((group (gnus-group-real-name gnus-newsgroup-name))
 675             newsgroups followup-to)
 676         (gnus-summary-select-article)
 677         (set-buffer gnus-original-article-buffer)
 678         (if (and (<= (length (message-tokenize-header
 679                               (setq newsgroups (mail-fetch-field "newsgroups"))
 680                               ", "))
 681                      1)
 682                  (or (not (setq followup-to (mail-fetch-field "followup-to")))
 683                      (not (member group (message-tokenize-header
 684                                          followup-to ", ")))))
 685             (if followup-to
 686                 (gnus-message 1 "Followup-to restricted")
 687               (gnus-message 1 "Not a crossposted article"))
 688           (set-buffer gnus-summary-buffer)
 689           (gnus-summary-reply-with-original 1)
 690           (set-buffer gnus-message-buffer)
 691           (message-goto-body)
 692           (insert (format gnus-crosspost-complaint newsgroups group))
 693           (message-goto-subject)
 694           (re-search-forward " *$")
 695           (replace-match " (crosspost notification)" t t)
 696           (when (gnus-y-or-n-p "Send this complaint? ")
 697             (message-send-and-exit)))))))
 698
 699 (defun gnus-summary-mail-other-window ()
 700   "Compose mail in other window."
 701   (interactive)
 702   (gnus-setup-message 'message
 703     (message-mail)))
 704
 705 (defun gnus-mail-parse-comma-list ()
 706   (let (accumulated
 707         beg)
 708     (skip-chars-forward " ")
 709     (while (not (eobp))
 710       (setq beg (point))
 711       (skip-chars-forward "^,")
 712       (while (zerop
 713               (save-excursion
 714                 (save-restriction
 715                   (let ((i 0))
 716                     (narrow-to-region beg (point))
 717                     (goto-char beg)
 718                     (logand (progn
 719                               (while (search-forward "\"" nil t)
 720                                 (incf i))
 721                               (if (zerop i) 2 i))
 722                             2)))))
 723         (skip-chars-forward ",")
 724         (skip-chars-forward "^,"))
 725       (skip-chars-backward " ")
 726       (push (buffer-substring beg (point))
 727             accumulated)
 728       (skip-chars-forward "^,")
 729       (skip-chars-forward ", "))
 730     accumulated))
 731
 732 (defun gnus-inews-add-to-address (group)
 733   (let ((to-address (mail-fetch-field "to")))
 734     (when (and to-address
 735                (gnus-alive-p))
 736       ;; This mail group doesn't have a `to-list', so we add one
 737       ;; here.  Magic!
 738       (when (gnus-y-or-n-p
 739              (format "Do you want to add this as `to-list': %s " to-address))
 740         (gnus-group-add-parameter group (cons 'to-list to-address))))))
 741
 742 (defun gnus-put-message ()
 743   "Put the current message in some group and return to Gnus."
 744   (interactive)
 745   (let ((reply gnus-article-reply)
 746         (winconf gnus-prev-winconf)
 747         (group gnus-newsgroup-name))
 748
 749     (or (and group (not (gnus-group-read-only-p group)))
 750         (setq group (read-string "Put in group: " nil
 751                                  (gnus-writable-groups))))
 752     (when (gnus-gethash group gnus-newsrc-hashtb)
 753       (error "No such group: %s" group))
 754
 755     (save-excursion
 756       (save-restriction
 757         (widen)
 758         (message-narrow-to-headers)
 759         (let (gnus-deletable-headers)
 760           (if (message-news-p)
 761               (message-generate-headers message-required-news-headers)
 762             (message-generate-headers message-required-mail-headers)))
 763         (goto-char (point-max))
 764         (insert "Gcc: " group "\n")
 765         (widen)))
 766
 767     (gnus-inews-do-gcc)
 768
 769     (when (get-buffer gnus-group-buffer)
 770       (when (gnus-buffer-exists-p (car-safe reply))
 771         (set-buffer (car reply))
 772         (and (cdr reply)
 773              (gnus-summary-mark-article-as-replied
 774               (cdr reply))))
 775       (when winconf
 776         (set-window-configuration winconf)))))
 777
 778 (defun gnus-article-mail (yank)
 779   "Send a reply to the address near point.
 780 If YANK is non-nil, include the original article."
 781   (interactive "P")
 782   (let ((address
 783          (buffer-substring
 784           (save-excursion (re-search-backward "[ \t\n]" nil t) (1+ (point)))
 785           (save-excursion (re-search-forward "[ \t\n]" nil t) (1- (point))))))
 786     (when address
 787       (message-reply address)
 788       (when yank
 789         (gnus-inews-yank-articles (list (cdr gnus-article-current)))))))
 790
 791 (defvar nntp-server-type)
 792 (defun gnus-bug ()
 793   "Send a bug report to the Gnus maintainers."
 794   (interactive)
 795   (unless (gnus-alive-p)
 796     (error "Gnus has been shut down"))
 797   (gnus-setup-message 'bug
 798     (delete-other-windows)
 799     (switch-to-buffer "*Gnus Help Bug*")
 800     (erase-buffer)
 801     (insert gnus-bug-message)
 802     (goto-char (point-min))
 803     (message-pop-to-buffer "*Gnus Bug*")
 804     (message-setup `((To . ,gnus-maintainer) (Subject . "")))
 805     (push `(gnus-bug-kill-buffer) message-send-actions)
 806     (goto-char (point-min))
 807     (re-search-forward (concat "^" (regexp-quote mail-header-separator) "$"))
 808     (forward-line 1)
 809     (insert (gnus-version) "\n")
 810     (insert (emacs-version) "\n")
 811     (when (and (boundp 'nntp-server-type)
 812                (stringp nntp-server-type))
 813       (insert nntp-server-type))
 814     (insert "\n\n\n\n\n")
 815     (gnus-debug)
 816     (goto-char (point-min))
 817     (search-forward "Subject: " nil t)
 818     (message "")))
 819
 820 (defun gnus-bug-kill-buffer ()
 821   (when (get-buffer "*Gnus Help Bug*")
 822     (kill-buffer "*Gnus Help Bug*")))
 823
 824 (defun gnus-debug ()
 825   "Attempts to go through the Gnus source file and report what variables have been changed.
 826 The source file has to be in the Emacs load path."
 827   (interactive)
 828   (let ((files '("gnus.el" "gnus-sum.el" "gnus-group.el"
 829                  "gnus-art.el" "gnus-start.el" "gnus-async.el"
 830                  "gnus-msg.el" "gnus-score.el" "gnus-win.el" "gnus-topic.el"
 831                  "nnmail.el" "message.el"))
 832         file expr olist sym)
 833     (gnus-message 4 "Please wait while we snoop your variables...")
 834     (sit-for 0)
 835     ;; Go through all the files looking for non-default values for variables.
 836     (save-excursion
 837       (set-buffer (get-buffer-create " *gnus bug info*"))
 838       (buffer-disable-undo (current-buffer))
 839       (while files
 840         (erase-buffer)
 841         (when (and (setq file (locate-library (pop files)))
 842                    (file-exists-p file))
 843           (insert-file-contents file)
 844           (goto-char (point-min))
 845           (if (not (re-search-forward "^;;* *Internal variables" nil t))
 846               (gnus-message 4 "Malformed sources in file %s" file)
 847             (narrow-to-region (point-min) (point))
 848             (goto-char (point-min))
 849             (while (setq expr (ignore-errors (read (current-buffer))))
 850               (ignore-errors
 851                 (and (or (eq (car expr) 'defvar)
 852                          (eq (car expr) 'defcustom))
 853                      (stringp (nth 3 expr))
 854                      (or (not (boundp (nth 1 expr)))
 855                          (not (equal (eval (nth 2 expr))
 856                                      (symbol-value (nth 1 expr)))))
 857                      (push (nth 1 expr) olist)))))))
 858       (kill-buffer (current-buffer)))
 859     (when (setq olist (nreverse olist))
 860       (insert "------------------ Environment follows ------------------\n\n"))
 861     (while olist
 862       (if (boundp (car olist))
 863           (condition-case ()
 864               (pp `(setq ,(car olist)
 865                          ,(if (or (consp (setq sym (symbol-value (car olist))))
 866                                   (and (symbolp sym)
 867                                        (not (or (eq sym nil)
 868                                                 (eq sym t)))))
 869                               (list 'quote (symbol-value (car olist)))
 870                             (symbol-value (car olist))))
 871                   (current-buffer))
 872             (error
 873              (format "(setq %s 'whatever)\n" (car olist))))
 874         (insert ";; (makeunbound '" (symbol-name (car olist)) ")\n"))
 875       (setq olist (cdr olist)))
 876     (insert "\n\n")
 877     ;; Remove any null chars - they seem to cause trouble for some
 878     ;; mailers.  (Byte-compiled output from the stuff above.)
 879     (goto-char (point-min))
 880     (while (re-search-forward "[\000\200]" nil t)
 881       (replace-match "" t t))))
 882
 883 ;;; Treatment of rejected articles.
 884 ;;; Bounced mail.
 885
 886 (defun gnus-summary-resend-bounced-mail (&optional fetch)
 887   "Re-mail the current message.
 888 This only makes sense if the current message is a bounce message than
 889 contains some mail you have written which has been bounced back to
 890 you.
 891 If FETCH, try to fetch the article that this is a reply to, if indeed
 892 this is a reply."
 893   (interactive "P")
 894   (gnus-summary-select-article t)
 895   (set-buffer gnus-original-article-buffer)
 896   (gnus-setup-message 'compose-bounce
 897     (let* ((references (mail-fetch-field "references"))
 898            (parent (and references (gnus-parent-id references))))
 899       (message-bounce)
 900       ;; If there are references, we fetch the article we answered to.
 901       (and fetch parent
 902            (gnus-summary-refer-article parent)
 903            (gnus-summary-show-all-headers)))))
 904
 905 ;;; Gcc handling.
 906
 907 ;; Do Gcc handling, which copied the message over to some group.
 908 (defun gnus-inews-do-gcc (&optional gcc)
 909   (interactive)
 910   (when (gnus-alive-p)
 911     (save-excursion
 912       (save-restriction
 913         (message-narrow-to-headers)
 914         (let ((gcc (or gcc (mail-fetch-field "gcc" nil t)))
 915               (cur (current-buffer))
 916               groups group method)
 917           (when gcc
 918             (message-remove-header "gcc")
 919             (widen)
 920             (setq groups (message-tokenize-header gcc " ,"))
 921             ;; Copy the article over to some group(s).
 922             (while (setq group (pop groups))
 923               (gnus-check-server
 924                (setq method
 925                      (cond ((and (null (gnus-get-info group))
 926                                  (eq (car gnus-message-archive-method)
 927                                      (car
 928                                       (gnus-server-to-method
 929                                        (gnus-group-method group)))))
 930                             ;; If the group doesn't exist, we assume
 931                             ;; it's an archive group...
 932                             gnus-message-archive-method)
 933                            ;; Use the method.
 934                            ((gnus-info-method (gnus-get-info group))
 935                             (gnus-info-method (gnus-get-info group)))
 936                            ;; Find the method.
 937                            (t (gnus-group-method group)))))
 938               (gnus-check-server method)
 939               (unless (gnus-request-group group t method)
 940                 (gnus-request-create-group group method))
 941               (save-excursion
 942                 (nnheader-set-temp-buffer " *acc*")
 943                 (insert-buffer-substring cur)
 944                 (goto-char (point-min))
 945                 (when (re-search-forward
 946                        (concat "^" (regexp-quote mail-header-separator) "$")
 947                        nil t)
 948                   (replace-match "" t t ))
 949                 (unless (gnus-request-accept-article group method t)
 950                   (gnus-message 1 "Couldn't store article in group %s: %s"
 951                                 group (gnus-status-message method))
 952                   (sit-for 2))
 953                 (kill-buffer (current-buffer))))))))))
 954
 955 (defun gnus-inews-insert-gcc ()
 956   "Insert Gcc headers based on `gnus-outgoing-message-group'."
 957   (save-excursion
 958     (save-restriction
 959       (message-narrow-to-headers)
 960       (let* ((group gnus-outgoing-message-group)
 961              (gcc (cond
 962                    ((gnus-functionp group)
 963                     (funcall group))
 964                    ((or (stringp group) (list group))
 965                     group))))
 966         (when gcc
 967           (insert "Gcc: "
 968                   (if (stringp gcc) gcc
 969                     (mapconcat 'identity gcc " "))
 970                   "\n"))))))
 971
 972 (defun gnus-inews-insert-archive-gcc (&optional group)
 973   "Insert the Gcc to say where the article is to be archived."
 974   (let* ((var gnus-message-archive-group)
 975          (group (or group gnus-newsgroup-name ""))
 976          result
 977          gcc-self-val
 978          (groups
 979           (cond
 980            ((null gnus-message-archive-method)
 981             ;; Ignore.
 982             nil)
 983            ((stringp var)
 984             ;; Just a single group.
 985             (list var))
 986            ((null var)
 987             ;; We don't want this.
 988             nil)
 989            ((and (listp var) (stringp (car var)))
 990             ;; A list of groups.
 991             var)
 992            ((gnus-functionp var)
 993             ;; A function.
 994             (funcall var group))
 995            (t
 996             ;; An alist of regexps/functions/forms.
 997             (while (and var
 998                         (not
 999                          (setq result
1000                                (cond
1001                                 ((stringp (caar var))
1002                                  ;; Regexp.
1003                                  (when (string-match (caar var) group)
1004                                    (cdar var)))
1005                                 ((gnus-functionp (car var))
1006                                  ;; Function.
1007                                  (funcall (car var) group))
1008                                 (t
1009                                  (eval (car var)))))))
1010               (setq var (cdr var)))
1011             result)))
1012          name)
1013     (when groups
1014       (when (stringp groups)
1015         (setq groups (list groups)))
1016       (save-excursion
1017         (save-restriction
1018           (message-narrow-to-headers)
1019           (goto-char (point-max))
1020           (insert "Gcc: ")
1021           (if (and gnus-newsgroup-name
1022                    (setq gcc-self-val
1023                          (gnus-group-find-parameter
1024                           gnus-newsgroup-name 'gcc-self)))
1025               (progn
1026                 (insert
1027                  (if (stringp gcc-self-val)
1028                      gcc-self-val
1029                    group))
1030                 (if (not (eq gcc-self-val 'none))
1031                     (insert "\n")
1032                   (progn
1033                     (beginning-of-line)
1034                     (kill-line))))
1035             (while (setq name (pop groups))
1036               (insert (if (string-match ":" name)
1037                           name
1038                         (gnus-group-prefixed-name
1039                          name gnus-message-archive-method)))
1040               (when groups
1041                 (insert " ")))
1042             (insert "\n")))))))
1043
1044 (defun gnus-summary-send-draft ()
1045   "Enter a mail/post buffer to edit and send the draft."
1046   (interactive)
1047   (gnus-set-global-variables)
1048   (let (buf)
1049     (if (not (setq buf (gnus-request-restore-buffer
1050                         (gnus-summary-article-number) gnus-newsgroup-name)))
1051         (error "Couldn't restore the article")
1052       (switch-to-buffer buf)
1053       (when (eq major-mode 'news-reply-mode)
1054         (local-set-key "\C-c\C-c" 'gnus-inews-news))
1055       ;; Insert the separator.
1056       (goto-char (point-min))
1057       (search-forward "\n\n")
1058       (forward-char -1)
1059       (insert mail-header-separator)
1060       ;; Configure windows.
1061       (let ((gnus-draft-buffer (current-buffer)))
1062         (gnus-configure-windows 'draft t)
1063         (goto-char (point))))))
1064
1065 (gnus-add-shutdown 'gnus-inews-close 'gnus)
1066
1067 (defun gnus-inews-close ()
1068   (setq gnus-inews-sent-ids nil))
1069
1070 ;;; Allow redefinition of functions.
1071
1072 (gnus-ems-redefine)
1073
1074 (provide 'gnus-msg)
1075
1076 ;;; gnus-msg.el ends here