Backport changes:
[elisp/wanderlust.git] / wl / wl-draft.el
1 ;;; wl-draft.el --- Message draft mode for Wanderlust.
2
3 ;; Copyright (C) 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
4 ;; Copyright (C) 1998,1999,2000 Masahiro MURATA <muse@ba2.so-net.ne.jp>
5
6 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
7 ;;      Masahiro MURATA <muse@ba2.so-net.ne.jp>
8 ;; Keywords: mail, net news
9
10 ;; This file is part of Wanderlust (Yet Another Message Interface on Emacsen).
11
12 ;; This program is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; any later version.
16 ;;
17 ;; This program is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 ;; GNU General Public License for more details.
21 ;;
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 ;; Boston, MA 02111-1307, USA.
26 ;;
27
28 ;;; Commentary:
29 ;;
30
31 ;;; Code:
32 ;;
33
34 (require 'sendmail)
35 (require 'wl-template)
36 (require 'emu)
37 (condition-case nil (require 'timezone) (error nil))
38 (require 'std11)
39 (require 'wl-vars)
40
41 (defvar x-face-add-x-face-version-header)
42 (defvar mail-reply-buffer)
43 (defvar mail-from-style)
44
45 (eval-when-compile
46   (require 'elmo-pop3)
47   (defalias-maybe 'x-face-insert 'ignore)
48   (defalias-maybe 'x-face-insert-version-header 'ignore)
49   (defalias-maybe 'wl-init 'ignore)
50   (defalias-maybe 'wl-draft-mode 'ignore))
51
52 (eval-and-compile
53   (autoload 'wl-addrmgr "wl-addrmgr"))
54
55 (defvar wl-draft-buf-name "Draft")
56 (defvar wl-draft-buffer-file-name nil)
57 (defvar wl-draft-field-completion-list nil)
58 (defvar wl-draft-verbose-send t)
59 (defvar wl-draft-verbose-msg nil)
60 (defvar wl-draft-queue-flushing nil)
61 (defvar wl-draft-config-variables nil)
62 (defvar wl-draft-config-exec-flag t)
63 (defvar wl-draft-buffer-cur-summary-buffer nil)
64 (defvar wl-draft-clone-local-variable-regexp "^\\(wl\\|mime\\)")
65 (defvar wl-draft-sendlog-filename "sendlog")
66 (defvar wl-draft-queue-save-filename "qinfo")
67 (defvar wl-draft-config-save-filename "config")
68 (defvar wl-draft-queue-flush-send-function 'wl-draft-dispatch-message)
69 (defvar wl-sent-message-via nil)
70 (defvar wl-sent-message-modified nil)
71 (defvar wl-sent-message-queued nil)
72 (defvar wl-draft-fcc-list nil)
73 (defvar wl-draft-reedit nil)
74 (defvar wl-draft-reply-buffer nil)
75 (defvar wl-draft-forward nil)
76 (defvar wl-draft-doing-mime-bcc nil)
77
78 (defvar wl-draft-parent-folder nil
79   "Folder name of the summary in which current draft is invoked.
80 This variable is local in each draft buffer.
81 You can refer its value in `wl-draft-config-alist'.
82
83 e.g.
84 \(setq wl-draft-config-alist
85       '(((string-match \".*@domain1$\" wl-draft-parent-folder)
86          (\"From\" . \"user@domain1\"))
87         ((string-match \".*@domain2$\" wl-draft-parent-folder)
88          (\"From\" . \"user@domain2\"))))")
89
90 (defvar wl-draft-config-sub-func-alist
91   '((body               . wl-draft-config-sub-body)
92     (top                . wl-draft-config-sub-top)
93     (bottom             . wl-draft-config-sub-bottom)
94     (header             . wl-draft-config-sub-header)
95     (header-top         . wl-draft-config-sub-header-top)
96     (header-bottom      . wl-draft-config-sub-header)
97     (part-top           . wl-draft-config-sub-part-top)
98     (part-bottom        . wl-draft-config-sub-part-bottom)
99     (body-file          . wl-draft-config-sub-body-file)
100     (top-file           . wl-draft-config-sub-top-file)
101     (bottom-file        . wl-draft-config-sub-bottom-file)
102     (header-file        . wl-draft-config-sub-header-file)
103     (template           . wl-draft-config-sub-template)
104     (x-face             . wl-draft-config-sub-x-face)))
105
106 (make-variable-buffer-local 'wl-draft-buffer-file-name)
107 (make-variable-buffer-local 'wl-draft-buffer-cur-summary-buffer)
108 (make-variable-buffer-local 'wl-draft-config-variables)
109 (make-variable-buffer-local 'wl-draft-config-exec-flag)
110 (make-variable-buffer-local 'wl-sent-message-via)
111 (make-variable-buffer-local 'wl-sent-message-queued)
112 (make-variable-buffer-local 'wl-draft-fcc-list)
113 (make-variable-buffer-local 'wl-draft-reply-buffer)
114 (make-variable-buffer-local 'wl-draft-parent-folder)
115
116 (defsubst wl-smtp-password-key (user mechanism server)
117   (format "SMTP:%s/%s@%s"
118           user mechanism server))
119
120 (defmacro wl-smtp-extension-bind (&rest body)
121   (` (let* ((smtp-sasl-mechanisms
122              (if wl-smtp-authenticate-type
123                  (mapcar 'upcase
124                          (if (listp wl-smtp-authenticate-type)
125                              wl-smtp-authenticate-type
126                            (list wl-smtp-authenticate-type)))))
127             (smtp-use-sasl (and smtp-sasl-mechanisms t))
128             (smtp-use-starttls (eq wl-smtp-connection-type 'starttls))
129             smtp-sasl-user-name smtp-sasl-properties sasl-read-passphrase)
130        (if (and (string= (car smtp-sasl-mechanisms) "DIGEST-MD5")
131                 ;; sendmail bug?
132                 (string-match "^\\([^@]*\\)@\\([^@]*\\)"
133                               wl-smtp-posting-user))
134            (setq smtp-sasl-user-name (match-string 1 wl-smtp-posting-user)
135                  smtp-sasl-properties (list 'realm
136                                             (match-string 2 wl-smtp-posting-user)))
137          (setq smtp-sasl-user-name wl-smtp-posting-user
138                smtp-sasl-properties nil))
139        (setq sasl-read-passphrase
140              (function
141               (lambda (prompt)
142                 (elmo-get-passwd
143                  (wl-smtp-password-key
144                   smtp-sasl-user-name
145                   (car smtp-sasl-mechanisms)
146                   smtp-server)))))
147        (,@ body))))
148
149 (defun wl-draft-insert-date-field ()
150   "Insert Date field."
151   (insert "Date: " (wl-make-date-string) "\n"))
152
153 (defun wl-draft-insert-from-field ()
154   "Insert From field."
155   ;; Put the "From:" field in unless for some odd reason
156   ;; they put one in themselves.
157   (let* ((login (or user-mail-address (user-login-name)))
158          (fullname (user-full-name)))
159     (cond ((eq mail-from-style 'angles)
160            (insert "From: " fullname)
161            (let ((fullname-start (+ (point-min) (length "From: ")))
162                  (fullname-end (point-marker)))
163              (goto-char fullname-start)
164              ;; Look for a character that cannot appear unquoted
165              ;; according to RFC 822.
166              (if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
167                                     fullname-end 1)
168                  (progn
169                    ;; Quote fullname, escaping specials.
170                    (goto-char fullname-start)
171                    (insert "\"")
172                    (while (re-search-forward "[\"\\]"
173                                              fullname-end 1)
174                      (replace-match "\\\\\\&" t))
175                    (insert "\""))))
176            (insert " <" login ">\n"))
177           ((eq mail-from-style 'parens)
178            (insert "From: " login " (")
179            (let ((fullname-start (point)))
180              (insert fullname)
181              (let ((fullname-end (point-marker)))
182                (goto-char fullname-start)
183                ;; RFC 822 says \ and nonmatching parentheses
184                ;; must be escaped in comments.
185                ;; Escape every instance of ()\ ...
186                (while (re-search-forward "[()\\]" fullname-end 1)
187                  (replace-match "\\\\\\&" t))
188                ;; ... then undo escaping of matching parentheses,
189                ;; including matching nested parentheses.
190                (goto-char fullname-start)
191                (while (re-search-forward
192                        "\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)"
193                        fullname-end 1)
194                  (replace-match "\\1(\\3)" t)
195                  (goto-char fullname-start))))
196            (insert ")\n"))
197           ((not mail-from-style)
198            (insert "From: " login "\n")))))
199
200 (defun wl-draft-insert-x-face-field ()
201   "Insert X-Face header."
202   (interactive)
203   (if (not (file-exists-p wl-x-face-file))
204       (error "File %s does not exist" wl-x-face-file)
205     (goto-char (point-min))
206     (search-forward mail-header-separator nil t)
207     (beginning-of-line)
208     (wl-draft-insert-x-face-field-here)
209     (run-hooks 'wl-draft-insert-x-face-field-hook))) ; highlight it if you want.
210
211 (defun wl-draft-insert-x-face-field-here ()
212   "Insert X-Face field at point."
213   (let ((x-face-string (elmo-get-file-string wl-x-face-file)))
214     (when (string-match "^\\(X-Face:\\)?[ \t\n]*" x-face-string)
215       (setq x-face-string (substring x-face-string (match-end 0))))
216     (insert "X-Face: " x-face-string))
217   (when (not (= (preceding-char) ?\n))  ; for chomped (choped) x-face-string
218     (insert ?\n))
219   ;; Insert X-Face-Version: field
220   (when (and (fboundp 'x-face-insert-version-header)
221              (boundp 'x-face-add-x-face-version-header)
222              x-face-add-x-face-version-header)
223     (x-face-insert-version-header)))
224
225 (defun wl-draft-setup ()
226   (let ((field wl-draft-fields)
227         cl)
228     (while field
229       (setq cl (append cl
230                        (list (cons (concat (car field) " ")
231                                    (concat (car field) " ")))))
232       (setq field (cdr field)))
233     (setq cl
234           (cons (cons (concat wl-draft-mime-bcc-field-name  ": ")
235                       (concat wl-draft-mime-bcc-field-name  ": "))
236                 cl))
237     (setq wl-draft-field-completion-list cl)
238     (setq wl-address-complete-header-regexp
239           (wl-regexp-opt
240            (append wl-address-complete-header-list
241                    (list (concat wl-draft-mime-bcc-field-name  ":")))))))
242
243 (defun wl-draft-make-mail-followup-to (recipients)
244   (if (elmo-list-member
245        (or wl-user-mail-address-list
246            (list (wl-address-header-extract-address wl-from)))
247        recipients)
248       (let ((rlist (elmo-list-delete
249                     (or wl-user-mail-address-list
250                         (list (wl-address-header-extract-address wl-from)))
251                     recipients
252                     (lambda (elem list)
253                       (elmo-delete-if
254                        (lambda (item) (string= (downcase elem)
255                                                (downcase item)))
256                        list)))))
257         (if (elmo-list-member rlist (mapcar 'downcase
258                                             wl-subscribed-mailing-list))
259             rlist
260           (append rlist (list (wl-address-header-extract-address
261                                wl-from)))))
262     recipients))
263
264 (defun wl-draft-delete-myself-from-cc (to cc)
265   (let ((myself (or wl-user-mail-address-list
266                     (list (wl-address-header-extract-address wl-from)))))
267     (cond (wl-draft-always-delete-myself ; always-delete option
268            (elmo-list-delete myself cc
269                              (lambda (elem list)
270                                (elmo-delete-if
271                                 (lambda (item) (string= (downcase elem)
272                                                         (downcase item)))
273                                 list))))
274           ((elmo-list-member (append to cc) ; subscribed mailing-list
275                              (mapcar 'downcase wl-subscribed-mailing-list))
276            (elmo-list-delete myself cc
277                              (lambda (elem list)
278                                (elmo-delete-if
279                                 (lambda (item) (string= (downcase elem)
280                                                         (downcase item)))
281                                 list))))
282           (t cc))))
283
284 (defun wl-draft-forward (original-subject summary-buf)
285   (let (references parent-folder)
286     (with-current-buffer summary-buf
287       (setq parent-folder (wl-summary-buffer-folder-name)))
288     (with-current-buffer (wl-message-get-original-buffer)
289       (setq references (nconc
290                         (std11-field-bodies '("References" "In-Reply-To"))
291                         (list (std11-field-body "Message-Id"))))
292       (setq references (delq nil references)
293             references (mapconcat 'identity references " ")
294             references (wl-draft-parse-msg-id-list-string references)
295             references (wl-delete-duplicates references)
296             references (when references
297                          (mapconcat 'identity references "\n\t"))))
298     (and wl-draft-use-frame
299          (get-buffer-window summary-buf)
300          (select-window (get-buffer-window summary-buf)))
301     (wl-draft (list (cons 'To "")
302                     (cons 'Subject
303                           (concat wl-forward-subject-prefix original-subject))
304                     (cons 'References references))
305               nil nil nil nil parent-folder))
306   (goto-char (point-max))
307   (wl-draft-insert-message)
308   (mail-position-on-field "To"))
309
310 (defun wl-draft-strip-subject-re (subject)
311   "Remove \"Re:\" from SUBJECT string. Shamelessly copied from Gnus."
312   (if (string-match wl-subject-prefix-regexp subject)
313       (substring subject (match-end 0))
314     subject))
315
316 (defun wl-draft-self-reply-p ()
317   "Return t when From address in the current message is user's self one or not."
318   (wl-address-user-mail-address-p (or (elmo-field-body "From") "")))
319
320 (defun wl-draft-reply-list-symbol (with-arg)
321   "Return symbol `wl-draft-reply-*-argument-list' match condition.
322 Check WITH-ARG and From: field."
323   (if (wl-draft-self-reply-p)
324       (if with-arg
325           'wl-draft-reply-myself-with-argument-list
326         'wl-draft-reply-myself-without-argument-list)
327     (if with-arg
328         'wl-draft-reply-with-argument-list
329       'wl-draft-reply-without-argument-list)))
330
331 (defun wl-draft-reply (buf with-arg summary-buf)
332   "Reply to BUF buffer message.
333 Reply to author if WITH-ARG is non-nil."
334 ;;;(save-excursion
335   (let (r-list
336         to mail-followup-to cc subject in-reply-to references newsgroups
337         to-alist cc-alist decoder parent-folder)
338     (when (buffer-live-p summary-buf)
339       (with-current-buffer summary-buf
340         (setq parent-folder (wl-summary-buffer-folder-name))))
341     (set-buffer (or buf mime-mother-buffer))
342     (setq r-list (symbol-value (wl-draft-reply-list-symbol with-arg)))
343     (catch 'done
344       (while r-list
345         (when (let ((condition (car (car r-list))))
346                 (cond ((stringp condition)
347                        (std11-field-body condition))
348                       ((listp condition)
349                        (catch 'done
350                          (while condition
351                            (cond
352                             ((stringp (car condition))
353                              (or (std11-field-body (car condition))
354                                  (throw 'done nil)))
355                             ((symbolp (car condition))
356                              (or (funcall (car condition))
357                                  (throw 'done nil)))
358                             (t
359                              (debug)))
360                            (setq condition (cdr condition)))
361                          t))
362                       ((symbolp condition)
363                        (funcall condition))))
364           (let ((r-to-list (nth 0 (cdr (car r-list))))
365                 (r-cc-list (nth 1 (cdr (car r-list))))
366                 (r-ng-list (nth 2 (cdr (car r-list)))))
367             (when (and (member "Followup-To" r-ng-list)
368                        (string= (std11-field-body "Followup-To") "poster"))
369               (setq r-to-list (cons "From" r-to-list))
370               (setq r-ng-list (delete "Followup-To"
371                                       (copy-sequence r-ng-list))))
372             (if (and r-to-list (symbolp r-to-list))
373                 (setq to (wl-concat-list (funcall r-to-list) ","))
374               (setq to (wl-concat-list (cons to
375                                              (elmo-multiple-fields-body-list
376                                               r-to-list))
377                                        ",")))
378             (if (and r-cc-list (symbolp r-cc-list))
379                 (setq cc (wl-concat-list (funcall r-cc-list) ","))
380               (setq cc (wl-concat-list (cons cc
381                                              (elmo-multiple-fields-body-list
382                                               r-cc-list))
383                                        ",")))
384             (if (and r-ng-list (symbolp r-ng-list))
385                 (setq newsgroups (wl-concat-list (funcall r-ng-list) ","))
386               (setq newsgroups (wl-concat-list (cons newsgroups
387                                                      (std11-field-bodies
388                                                       r-ng-list))
389                                                ","))))
390           (throw 'done nil))
391         (setq r-list (cdr r-list)))
392       (error "No match field: check your `%s'"
393              (symbol-name (wl-draft-reply-list-symbol with-arg))))
394     (setq subject (std11-field-body "Subject"))
395     (setq to (wl-parse-addresses to)
396           cc (wl-parse-addresses cc))
397     (with-temp-buffer                   ; to keep raw buffer unibyte.
398       (elmo-set-buffer-multibyte default-enable-multibyte-characters)
399       (setq decoder (mime-find-field-decoder 'Subject 'plain))
400       (setq subject (if (and subject decoder)
401                         (funcall decoder subject) subject))
402       (setq to-alist
403             (mapcar
404              (lambda (addr)
405                (setq decoder (mime-find-field-decoder 'To 'plain))
406                (cons (nth 1 (std11-extract-address-components addr))
407                      (if decoder (funcall decoder addr) addr)))
408              to))
409       (setq cc-alist
410             (mapcar
411              (lambda (addr)
412                (setq decoder (mime-find-field-decoder 'Cc 'plain))
413                (cons (nth 1 (std11-extract-address-components addr))
414                      (if decoder (funcall decoder addr) addr)))
415              cc)))
416     (and wl-reply-subject-prefix
417          (setq subject (concat wl-reply-subject-prefix
418                                (wl-draft-strip-subject-re
419                                 (or subject "")))))
420     (setq in-reply-to (std11-field-body "Message-Id"))
421     (setq references (nconc
422                       (std11-field-bodies '("References" "In-Reply-To"))
423                       (list in-reply-to)))
424     (setq to (delq nil (mapcar 'car to-alist)))
425     (setq cc (delq nil (mapcar 'car cc-alist)))
426     ;; if subscribed mailing list is contained in cc or to
427     ;; and myself is contained in cc,
428     ;; delete myself from cc.
429     (setq cc (wl-draft-delete-myself-from-cc to cc))
430     (when wl-insert-mail-followup-to
431       (setq mail-followup-to
432             (wl-draft-make-mail-followup-to (append to cc)))
433       (setq mail-followup-to (wl-delete-duplicates mail-followup-to nil t)))
434     (with-temp-buffer                   ; to keep raw buffer unibyte.
435       (elmo-set-buffer-multibyte default-enable-multibyte-characters)
436       (setq newsgroups (wl-parse newsgroups
437                                  "[ \t\f\r\n,]*\\([^ \t\f\r\n,]+\\)")
438             newsgroups (wl-delete-duplicates newsgroups)
439             newsgroups
440             (if newsgroups
441                 (mapconcat
442                  (lambda (grp)
443                    (setq decoder (mime-find-field-decoder 'Newsgroups 'plain))
444                    (if decoder (funcall decoder grp) grp))
445                  newsgroups ","))))
446     (setq to (wl-delete-duplicates to nil t))
447     (setq cc (wl-delete-duplicates
448               (append (wl-delete-duplicates cc nil t)
449                       to (copy-sequence to))
450               t t))
451     (and to (setq to (mapconcat
452                       '(lambda (addr)
453                          (if wl-draft-reply-use-address-with-full-name
454                              (or (cdr (assoc addr to-alist)) addr)
455                            addr))
456                       to ",\n\t")))
457     (and cc (setq cc (mapconcat
458                       '(lambda (addr)
459                          (if wl-draft-reply-use-address-with-full-name
460                              (or (cdr (assoc addr cc-alist)) addr)
461                            addr))
462                       cc ",\n\t")))
463     (and mail-followup-to
464          (setq mail-followup-to
465                (mapconcat
466                 '(lambda (addr)
467                    (if wl-draft-reply-use-address-with-full-name
468                        (or (cdr (assoc addr (append to-alist cc-alist))) addr)
469                      addr))
470                 mail-followup-to ",\n\t")))
471     (and (null to) (setq to cc cc nil))
472     (setq references (delq nil references)
473           references (mapconcat 'identity references " ")
474           references (wl-draft-parse-msg-id-list-string references)
475           references (wl-delete-duplicates references)
476           references (if references
477                          (mapconcat 'identity references "\n\t")))
478     (and wl-draft-use-frame
479          (get-buffer-window summary-buf)
480          (select-window (get-buffer-window summary-buf)))
481     (wl-draft (list (cons 'To to)
482                     (cons 'Cc cc)
483                     (cons 'Newsgroups newsgroups)
484                     (cons 'Subject subject)
485                     (cons 'In-Reply-To in-reply-to)
486                     (cons 'References references)
487                     (cons 'Mail-Followup-To mail-followup-to))
488               nil nil nil nil parent-folder)
489     (setq wl-draft-reply-buffer buf))
490   (run-hooks 'wl-reply-hook))
491
492 (defun wl-draft-add-references ()
493   (wl-draft-add-in-reply-to "References"))
494
495 (defun wl-draft-add-in-reply-to (&optional alt-field)
496   (let* ((mes-id (save-excursion
497                    (set-buffer mail-reply-buffer)
498                    (std11-field-body "message-id")))
499          (field (or alt-field "In-Reply-To"))
500          (ref (std11-field-body field))
501          (ref-list nil) (st nil))
502     (when (and mes-id ref)
503       (while (string-match "<[^>]+>" ref st)
504         (setq ref-list
505               (cons (substring ref (match-beginning 0) (setq st (match-end 0)))
506                     ref-list)))
507       (when (and ref-list
508                  (member mes-id ref-list))
509         (setq mes-id nil)))
510     (when mes-id
511       (save-excursion
512         (when (mail-position-on-field field)
513           (forward-line)
514           (while (looking-at "^[ \t]")
515             (forward-line))
516           (setq mes-id (concat "\t" mes-id "\n")))
517         (insert mes-id))
518       t)))
519
520 (defun wl-draft-yank-from-mail-reply-buffer (decode-it
521                                              &optional ignored-fields)
522   (interactive)
523   (save-restriction
524     (narrow-to-region (point)(point))
525     (insert
526      (with-current-buffer mail-reply-buffer
527        (when decode-it
528          (decode-mime-charset-region (point-min) (point-max)
529                                      wl-mime-charset))
530        (buffer-substring-no-properties
531         (point-min) (point-max))))
532     (when ignored-fields
533       (goto-char (point-min))
534       (wl-draft-delete-fields ignored-fields))
535     (goto-char (point-max))
536     (push-mark (point) nil t)
537     (goto-char (point-min)))
538   (let ((beg (point)))
539     (cond (mail-citation-hook (run-hooks 'mail-citation-hook))
540           (mail-yank-hooks (run-hooks 'mail-yank-hooks))
541           (wl-draft-cite-function (funcall wl-draft-cite-function))) ; default cite
542     (run-hooks 'wl-draft-cited-hook)
543     (when (if wl-draft-add-references
544               (wl-draft-add-references)
545             (if wl-draft-add-in-reply-to
546                 (wl-draft-add-in-reply-to)))
547       (wl-highlight-headers 'for-draft)) ; highlight when added References:
548     (when wl-highlight-body-too
549       (wl-highlight-body-region beg (point-max)))))
550
551 (defun wl-message-news-p ()
552   "If exist valid Newsgroups field, return non-nil."
553   (std11-field-body "Newsgroups"))
554
555 (defun wl-message-field-exists-p (field)
556   "If FIELD exist and FIELD value is not empty, return non-nil."
557   (let ((value (std11-field-body field)))
558     (and value
559          (not (string= value "")))))
560
561 (defun wl-message-mail-p ()
562   "If exist To, Cc or Bcc field, return non-nil."
563   (or (wl-message-field-exists-p "To")
564       (wl-message-field-exists-p "Resent-to")
565       (wl-message-field-exists-p "Cc")
566       (wl-message-field-exists-p "Bcc")
567       (wl-message-field-exists-p wl-draft-mime-bcc-field-name)
568 ;;; This may be needed..
569 ;;;   (wl-message-field-exists-p "Fcc")
570       ))
571
572 (defun wl-draft-edit-string (string)
573   (let ((cur-buf (current-buffer))
574         (tmp-buf (get-buffer-create " *wl-draft-edit-string*"))
575         to subject in-reply-to cc references newsgroups mail-followup-to
576         content-type content-transfer-encoding from
577         body-beg)
578     (set-buffer tmp-buf)
579     (erase-buffer)
580     (insert string)
581     (setq to (std11-field-body "To"))
582     (setq to (and to
583                   (eword-decode-string
584                    (decode-mime-charset-string
585                     to
586                     wl-mime-charset))))
587     (setq subject (std11-field-body "Subject"))
588     (setq subject (and subject
589                        (eword-decode-string
590                         (decode-mime-charset-string
591                          subject
592                          wl-mime-charset))))
593     (setq from (std11-field-body "From")
594           from (and from
595                     (eword-decode-string
596                      (decode-mime-charset-string
597                       from
598                       wl-mime-charset))))
599     (setq in-reply-to (std11-field-body "In-Reply-To"))
600     (setq cc (std11-field-body "Cc"))
601     (setq cc (and cc
602                   (eword-decode-string
603                    (decode-mime-charset-string
604                     cc
605                     wl-mime-charset))))
606     (setq references (std11-field-body "References"))
607     (setq newsgroups (std11-field-body "Newsgroups"))
608     (setq mail-followup-to (std11-field-body "Mail-Followup-To"))
609     (setq content-type (std11-field-body "Content-Type"))
610     (setq content-transfer-encoding (std11-field-body "Content-Transfer-Encoding"))
611     (goto-char (point-min))
612     (or (re-search-forward "\n\n" nil t)
613         (search-forward (concat mail-header-separator "\n") nil t))
614     (unwind-protect
615         (set-buffer
616          (wl-draft (list
617                     (cons 'From
618                           (if (member
619                                (nth 1 (std11-extract-address-components from))
620                                wl-user-mail-address-list)
621                               from))
622                     (cons 'To to)
623                     (cons 'Cc cc)
624                     (cons 'Subject subject)
625                     (cons 'Newsgroups newsgroups)
626                     (cons 'Mail-Followup-To mail-followup-to)
627                     (cons 'In-Reply-To in-reply-to)
628                     (cons 'References references))
629                    content-type content-transfer-encoding
630                    (buffer-substring (point) (point-max))
631                    'edit-again))
632       (and to (mail-position-on-field "To"))
633       (delete-other-windows)
634       (kill-buffer tmp-buf)))
635   (run-hooks 'wl-draft-reedit-hook))
636
637 (defun wl-draft-insert-current-message (dummy)
638   (interactive)
639   (let (original-buffer
640         mail-reply-buffer
641         mail-citation-hook mail-yank-hooks
642         wl-draft-add-references wl-draft-add-in-reply-to
643         wl-draft-cite-function)
644     (with-current-buffer wl-draft-buffer-cur-summary-buffer
645       (with-current-buffer wl-message-buffer
646         (setq original-buffer (wl-message-get-original-buffer))
647         (if (zerop
648              (with-current-buffer original-buffer
649                (buffer-size)))
650             (error "No current message"))))
651     (setq mail-reply-buffer original-buffer)
652     (wl-draft-yank-from-mail-reply-buffer
653      nil
654      wl-ignored-forwarded-headers)))
655
656 (defun wl-draft-insert-get-message (dummy)
657   (let ((fld (completing-read
658               "Folder name: "
659               (if (memq 'read-folder wl-use-folder-petname)
660                   (wl-folder-get-entity-with-petname)
661                 wl-folder-entity-hashtb)
662               nil nil wl-default-spec
663               'wl-read-folder-hist))
664         (number (call-interactively
665                  (function (lambda (num)
666                              (interactive "nNumber: ")
667                              num))))
668         (mail-reply-buffer (get-buffer-create "*wl-draft-insert-get-message*"))
669         mail-citation-hook mail-yank-hooks
670         wl-draft-cite-function)
671     (unwind-protect
672         (progn
673           (elmo-message-fetch (wl-folder-get-elmo-folder fld)
674                               number
675                               ;; No cache.
676                               (elmo-make-fetch-strategy 'entire)
677                               nil mail-reply-buffer)
678           (wl-draft-yank-from-mail-reply-buffer nil))
679       (kill-buffer mail-reply-buffer))))
680
681 ;;
682 ;; default body citation func
683 ;;
684 (defun wl-default-draft-cite ()
685   (let ((mail-yank-ignored-headers "[^:]+:")
686         (mail-yank-prefix "> ")
687         (summary-buf wl-current-summary-buffer)
688         (message-buf (get-buffer (wl-current-message-buffer)))
689         from date cite-title num entity)
690     (if (and summary-buf
691              (buffer-live-p summary-buf)
692              message-buf
693              (buffer-live-p message-buf))
694         (progn
695           (with-current-buffer summary-buf
696             (let ((elmo-mime-charset wl-summary-buffer-mime-charset))
697               (setq num (save-excursion
698                           (set-buffer message-buf)
699                           wl-message-buffer-cur-number))
700               (setq entity (elmo-msgdb-overview-get-entity
701                             num (wl-summary-buffer-msgdb)))
702               (setq date (elmo-msgdb-overview-entity-get-date entity))
703               (setq from (elmo-msgdb-overview-entity-get-from entity))))
704           (setq cite-title (format "At %s,\n%s wrote:"
705                                    (or date "some time ago")
706                                    (if wl-default-draft-cite-decorate-author
707                                        (funcall wl-summary-from-function
708                                                 (or from "you"))
709                                      (or from "you"))))))
710     (and cite-title
711          (insert cite-title "\n"))
712     (mail-indent-citation)))
713
714 (defvar wl-draft-buffer nil "Draft buffer to yank content.")
715 (defun wl-draft-yank-to-draft-buffer (buffer)
716   "Yank BUFFER content to `wl-draft-buffer'."
717   (set-buffer wl-draft-buffer)
718   (let ((mail-reply-buffer buffer))
719     (wl-draft-yank-from-mail-reply-buffer nil)
720     (kill-buffer buffer)))
721
722 (defun wl-draft-yank-original (&optional arg)
723   "Yank original message."
724   (interactive "P")
725   (if arg
726       (let (buf mail-reply-buffer)
727         (elmo-set-work-buf
728          (yank)
729          (setq buf (current-buffer)))
730         (setq mail-reply-buffer buf)
731         (wl-draft-yank-from-mail-reply-buffer nil))
732     (wl-draft-yank-current-message-entity)))
733
734 (defun wl-draft-hide (editing-buffer)
735   "Hide the editing draft buffer if possible."
736   (when (and editing-buffer
737              (buffer-live-p editing-buffer))
738     (set-buffer editing-buffer)
739     (let ((sum-buf wl-draft-buffer-cur-summary-buffer)
740           fld-buf sum-win fld-win)
741       (if (and wl-draft-use-frame
742                (> (length (visible-frame-list)) 1))
743           ;; hide draft frame
744           (delete-frame)
745         ;; hide draft window
746         (or (one-window-p)
747             (delete-window))
748         ;; stay folder window if required
749         (when wl-stay-folder-window
750           (if (setq fld-buf (get-buffer wl-folder-buffer-name))
751               (if (setq fld-win (get-buffer-window fld-buf))
752                   (select-window fld-win)
753                 (if wl-draft-resume-folder-window ;; resume folder window
754                     (switch-to-buffer fld-buf)))))
755         (if (buffer-live-p sum-buf)
756             (if (setq sum-win (get-buffer-window sum-buf t))
757                 ;; if Summary is on the frame, select it.
758                 (select-window sum-win)
759               ;; if summary is not on the frame, switch to it.
760               (if (and wl-stay-folder-window
761                        (or wl-draft-resume-folder-window fld-win))
762                   (wl-folder-select-buffer sum-buf)
763                 (switch-to-buffer sum-buf))))))))
764
765 (defun wl-draft-delete (editing-buffer)
766   "Kill the editing draft buffer and delete the file corresponds to it."
767   (save-excursion
768     (when editing-buffer
769       (set-buffer editing-buffer)
770       (if wl-draft-buffer-file-name
771           (progn
772             (if (file-exists-p wl-draft-buffer-file-name)
773                 (delete-file wl-draft-buffer-file-name))
774             (let ((msg (and wl-draft-buffer-file-name
775                             (string-match "[0-9]+$" wl-draft-buffer-file-name)
776                             (string-to-int
777                              (match-string 0 wl-draft-buffer-file-name)))))
778               (wl-draft-config-info-operation msg 'delete))))
779       (set-buffer-modified-p nil)               ; force kill
780       (kill-buffer editing-buffer))))
781
782 (defun wl-draft-kill (&optional force-kill)
783   "Kill current draft buffer and quit editing."
784   (interactive "P")
785   (save-excursion
786     (when (and (or (eq major-mode 'wl-draft-mode)
787                    (eq major-mode 'mail-mode))
788                (or force-kill
789                    (y-or-n-p "Kill Current Draft? ")))
790       (let ((cur-buf (current-buffer)))
791         (wl-draft-hide cur-buf)
792         (wl-draft-delete cur-buf)))
793     (message "")))
794
795 (defun wl-draft-fcc ()
796   "Add a new Fcc field, with file name completion."
797   (interactive)
798   (or (mail-position-on-field "fcc" t)  ;Put new field after exiting Fcc.
799       (mail-position-on-field "to"))
800   (insert "\nFcc: "))
801
802 ;; Imported from message.el.
803 (defun wl-draft-elide-region (b e)
804   "Elide the text in the region.
805 An ellipsis (from `wl-draft-elide-ellipsis') will be inserted where the
806 text was killed."
807   (interactive "r")
808   (kill-region b e)
809   (insert wl-draft-elide-ellipsis))
810
811 ;; Imported from message.el.
812 (defun wl-draft-beginning-of-line (&optional n)
813   "Move point to beginning of header value or to beginning of line."
814   (interactive "p")
815   (let ((zrs 'zmacs-region-stays))
816     (when (and (interactive-p) (boundp zrs))
817       (set zrs t)))
818   (if (wl-draft-point-in-header-p)
819       (let* ((here (point))
820              (bol (progn (beginning-of-line n) (point)))
821              (eol (line-end-position))
822              (eoh (and (looking-at "[^ \t]")
823                        (re-search-forward ": *" eol t))))
824         (if (and eoh (or (> here eoh) (= here bol)))
825             (goto-char eoh)
826           (goto-char bol)))
827     (beginning-of-line n)))
828
829 (defun wl-draft-point-in-header-p ()
830   "Return t if point is in the header."
831   (save-excursion
832     (let ((p (point)))
833       (goto-char (point-min))
834       (not (re-search-forward
835             (concat "^" (regexp-quote mail-header-separator) "\n")
836             p t)))))
837
838 ;; function for wl-sent-message-via
839
840 (defmacro wl-draft-sent-message-p (type)
841   (` (eq (nth 1 (assq (, type) wl-sent-message-via)) 'sent)))
842
843 (defmacro wl-draft-set-sent-message (type result &optional server-port)
844   (` (let ((element (assq (, type) wl-sent-message-via)))
845        (if element
846            (unless (eq (nth 1 element) (, result))
847              (setcdr element (list (, result) (, server-port)))
848              (setq wl-sent-message-modified t))
849          (push (list (, type) (, result) (, server-port)) wl-sent-message-via)
850          (setq wl-sent-message-modified t)))))
851
852 (defun wl-draft-sent-message-results ()
853   (let ((results wl-sent-message-via)
854         unplugged-via sent-via)
855     (while results
856       (cond ((eq (nth 1 (car results)) 'unplugged)
857              (push (caar results) unplugged-via))
858             ((eq (nth 1 (car results)) 'sent)
859              (push (caar results) sent-via)))
860       (setq results (cdr results)))
861     (list unplugged-via sent-via)))
862
863 (defun wl-draft-write-sendlog (status proto server to id)
864   "Write send log file, if `wl-draft-sendlog' is non-nil."
865   (when wl-draft-sendlog
866     (with-temp-buffer
867       (let* ((filename (expand-file-name wl-draft-sendlog-filename
868                                          elmo-msgdb-directory))
869              (filesize (nth 7 (file-attributes filename)))
870              (server (if server (concat " server=" server) ""))
871              (to (if to (cond
872                          ((memq proto '(fcc queue))
873                           (format " folder=\"%s\"" to))
874                          ((eq proto 'nntp)
875                           (format " ng=<%s>" to))
876                          (t
877                           (concat " to="
878                                   (mapconcat
879                                    'identity
880                                    (mapcar '(lambda(x) (format "<%s>" x)) to)
881                                    ","))))
882                    ""))
883              (id (if id (concat " id=" id) ""))
884              (time (format-time-string "%Y/%m/%d %T")))
885         (insert (format "%s proto=%s stat=%s%s%s%s\n"
886                         time proto status server to id))
887         (if (and wl-draft-sendlog-max-size filesize
888                  (> filesize wl-draft-sendlog-max-size))
889             (rename-file filename (concat filename ".old") t))
890         (if (file-writable-p filename)
891             (write-region-as-binary (point-min) (point-max)
892                                     filename t 'no-msg)
893           (message "%s is not writable." filename))))))
894
895 (defun wl-draft-get-header-delimiter (&optional delete)
896   ;; If DELETE is non-nil, replace the header delimiter with a blank line
897   (let (delimline)
898     (goto-char (point-min))
899     (when (re-search-forward
900            (concat "^" (regexp-quote mail-header-separator) "$\\|^$") nil t)
901       (replace-match "")
902       (if delete
903           (forward-char -1))
904       (setq delimline (point-marker)))
905     delimline))
906
907 (defun wl-draft-send-mail-with-qmail ()
908   "Pass the prepared message buffer to qmail-inject.
909 Refer to the documentation for the variable `send-mail-function'
910 to find out how to use this."
911   (if (and wl-draft-qmail-send-plugged
912            (not (elmo-plugged-p)))
913       (wl-draft-set-sent-message 'mail 'unplugged)
914     ;; send the message
915     (run-hooks 'wl-mail-send-pre-hook) ;; X-PGP-Sig, Cancel-Lock
916     (let ((id (std11-field-body "Message-ID"))
917           (to (std11-field-body "To")))
918       (case
919           (as-binary-process
920            (apply
921             'call-process-region 1 (point-max) wl-qmail-inject-program
922             nil nil nil
923             wl-qmail-inject-args))
924         ;; qmail-inject doesn't say anything on it's stdout/stderr,
925         ;; we have to look at the retval instead
926         (0   (progn
927                (wl-draft-set-sent-message 'mail 'sent)
928                (wl-draft-write-sendlog 'ok 'qmail nil (list to) id)))
929         (1   (error "`qmail-inject' reported permanent failure"))
930         (111 (error "`qmail-inject' reported transient failure"))
931         ;; should never happen
932         (t   (error "`qmail-inject' reported unknown failure"))))))
933
934 (defun wl-draft-parse-msg-id-list-string (string)
935   "Get msg-id list from STRING."
936   (let (msg-id-list)
937     (dolist (parsed-id (std11-parse-msg-ids-string string))
938       (when (eq (car parsed-id) 'msg-id)
939         (setq msg-id-list (cons (std11-msg-id-string parsed-id)
940                                 msg-id-list))))
941     (nreverse msg-id-list)))
942
943 (defun wl-draft-eword-encode-address-list (string &optional column)
944   "Encode header field STRING as list of address, and return the result.
945 Cause an error when STRING contains invalid address.
946 Optional argument COLUMN is start-position of the field."
947   (car (eword-encode-rword-list
948         (or column eword-encode-default-start-column)
949         (eword-encode-addresses-to-rword-list
950          (wl-draft-std11-parse-addresses (std11-lexical-analyze string))))))
951
952 (defun wl-draft-std11-parse-addresses (lal)
953   (let ((ret (std11-parse-address lal)))
954     (when (and (not (and (eq (length lal) 1)
955                          (eq (car (car lal)) 'spaces)))
956                (null ret))
957       (error "Error while parsing address"))
958     (if ret
959         (let ((dest (list (car ret))))
960           (setq lal (cdr ret))
961           (while (and (setq ret (std11-parse-ascii-token lal))
962                       (string-equal (cdr (assq 'specials (car ret))) ",")
963                       (setq ret (std11-parse-address (cdr ret)))
964                       )
965             (setq dest (cons (car ret) dest))
966             (setq lal (cdr ret)))
967           (while (eq 'spaces (car (car lal)))
968             (setq lal (cdr lal)))
969           (if lal (error "Error while parsing address"))
970           (nreverse dest)))))
971
972 (defun wl-draft-parse-mailbox-list (field &optional remove-group-list)
973   "Get mailbox list of FIELD from current buffer.
974 The buffer is expected to be narrowed to just the headers of the message.
975 If optional argument REMOVE-GROUP-LIST is non-nil, remove group list content
976 from current buffer."
977   (save-excursion
978     (let ((case-fold-search t)
979           (inhibit-read-only t)
980           addresses address
981           mailbox-list beg seq has-group-list)
982       (goto-char (point-min))
983       (while (re-search-forward (concat "^" (regexp-quote field) "[\t ]*:")
984                                 nil t)
985         (setq beg (point))
986         (re-search-forward "^[^ \t]" nil 'move)
987         (beginning-of-line)
988         (skip-chars-backward "\n")
989         (setq seq (std11-lexical-analyze
990                    (buffer-substring-no-properties beg (point))))
991         (setq addresses (wl-draft-std11-parse-addresses seq))
992         (while addresses
993           (cond ((eq (car (car addresses)) 'group)
994                  (setq has-group-list t)
995                  (setq mailbox-list
996                        (nconc mailbox-list
997                               (mapcar
998                                'std11-address-string
999                                (nth 2 (car addresses))))))
1000                 ((eq (car (car addresses)) 'mailbox)
1001                  (setq address (nth 1 (car addresses)))
1002                  (setq mailbox-list
1003                        (nconc mailbox-list
1004                               (list
1005                                (std11-addr-to-string
1006                                 (if (eq (car address) 'phrase-route-addr)
1007                                     (nth 2 address)
1008                                   (cdr address))))))))
1009           (setq addresses (cdr addresses)))
1010         (when (and remove-group-list has-group-list)
1011           (delete-region beg (point))
1012           (insert (wl-address-string-without-group-list-contents seq))))
1013       mailbox-list)))
1014
1015 (defun wl-draft-deduce-address-list (buffer header-start header-end)
1016   "Get address list suitable for smtp RCPT TO:<address>.
1017 Group list content is removed if `wl-draft-remove-group-list-contents' is
1018 non-nil."
1019   (let ((fields (if (and wl-draft-doing-mime-bcc
1020                          wl-draft-disable-bcc-for-mime-bcc)
1021                     '("to" "cc")
1022                   '("to" "cc" "bcc")))
1023         (resent-fields '("resent-to" "resent-cc" "resent-bcc"))
1024         (case-fold-search t)
1025         addrs recipients)
1026     (save-excursion
1027       (save-restriction
1028         (narrow-to-region header-start header-end)
1029         (goto-char (point-min))
1030         (save-excursion
1031           (if (re-search-forward "^resent-to[\t ]*:" nil t)
1032               (setq fields resent-fields)))
1033         (while fields
1034           (setq recipients
1035                 (nconc recipients
1036                        (wl-draft-parse-mailbox-list
1037                         (car fields)
1038                         wl-draft-remove-group-list-contents)))
1039           (setq fields (cdr fields)))
1040         recipients))))
1041
1042 ;;
1043 ;; from Semi-gnus
1044 ;;
1045 (defun wl-draft-send-mail-with-smtp ()
1046   "Send the prepared message buffer with SMTP."
1047   (require 'smtp)
1048   (let* ((errbuf (if mail-interactive
1049                      (generate-new-buffer " smtp errors")
1050                    0))
1051          (case-fold-search t)
1052          (default-case-fold-search t)
1053          (sender (or wl-envelope-from
1054                      (wl-address-header-extract-address wl-from)))
1055          (delimline (save-excursion
1056                       (goto-char (point-min))
1057                       (re-search-forward
1058                        (concat "^" (regexp-quote mail-header-separator)
1059                                "$\\|^$") nil t)
1060                       (point-marker)))
1061          (smtp-server
1062           (or wl-smtp-posting-server smtp-server "localhost"))
1063          (smtp-service (or wl-smtp-posting-port smtp-service))
1064          (smtp-local-domain (or smtp-local-domain wl-local-domain))
1065          (id (std11-field-body "message-id"))
1066          recipients)
1067     (if (not (elmo-plugged-p smtp-server smtp-service))
1068         (wl-draft-set-sent-message 'mail 'unplugged
1069                                    (cons smtp-server smtp-service))
1070       (unwind-protect
1071           (save-excursion
1072             ;; Instead of `smtp-deduce-address-list'.
1073             (setq recipients (wl-draft-deduce-address-list
1074                               (current-buffer) (point-min) delimline))
1075             (unless recipients (error "No recipients"))
1076             ;; Insert an extra newline if we need it to work around
1077             ;; Sun's bug that swallows newlines.
1078             (goto-char (1+ delimline))
1079             (if (eval mail-mailer-swallows-blank-line)
1080                 (newline))
1081             (run-hooks 'wl-mail-send-pre-hook) ;; X-PGP-Sig, Cancel-Lock
1082             (if mail-interactive
1083                 (save-excursion
1084                   (set-buffer errbuf)
1085                   (erase-buffer)))
1086             (wl-draft-delete-field "bcc" delimline)
1087             (wl-draft-delete-field "resent-bcc" delimline)
1088             (let (process-connection-type)
1089               (as-binary-process
1090                (when recipients
1091                  (wl-smtp-extension-bind
1092                   (condition-case err
1093                       (smtp-send-buffer sender recipients (current-buffer))
1094                     (error
1095                      (wl-draft-write-sendlog 'failed 'smtp smtp-server
1096                                              recipients id)
1097                      (if (and (eq (car err) 'smtp-response-error)
1098                               (= (nth 1 err) 535))
1099                          (elmo-remove-passwd
1100                           (wl-smtp-password-key
1101                            smtp-sasl-user-name
1102                            (car smtp-sasl-mechanisms)
1103                            smtp-server)))
1104                      (signal (car err) (cdr err)))
1105                     (quit
1106                      (wl-draft-write-sendlog 'uncertain 'smtp smtp-server
1107                                              recipients id)
1108                      (signal (car err) (cdr err)))))
1109                  (wl-draft-set-sent-message 'mail 'sent)
1110                  (wl-draft-write-sendlog
1111                   'ok 'smtp smtp-server recipients id)))))
1112         (if (bufferp errbuf)
1113             (kill-buffer errbuf))))))
1114
1115 (defun wl-draft-send-mail-with-pop-before-smtp ()
1116   "Send the prepared message buffer with POP-before-SMTP."
1117   (require 'elmo-pop3)
1118   (let ((session
1119          (luna-make-entity
1120           'elmo-pop3-folder
1121           :user   (or wl-pop-before-smtp-user
1122                       elmo-pop3-default-user)
1123           :server (or wl-pop-before-smtp-server
1124                       elmo-pop3-default-server)
1125           :port   (or wl-pop-before-smtp-port
1126                       elmo-pop3-default-port)
1127           :auth   (or wl-pop-before-smtp-authenticate-type
1128                       elmo-pop3-default-authenticate-type)
1129           :stream-type (or wl-pop-before-smtp-stream-type
1130                            elmo-pop3-default-stream-type))))
1131     (condition-case error
1132         (progn
1133           (elmo-pop3-get-session session)
1134           (when session (elmo-network-close-session session)))
1135       (error
1136        (elmo-network-close-session session)
1137        (unless (string= (nth 1 error) "Unplugged")
1138          (signal (car error)(cdr error))))))
1139   (wl-draft-send-mail-with-smtp))
1140
1141 (defun wl-draft-insert-required-fields (&optional force-msgid)
1142   "Insert Message-ID, Date, and From field.
1143 If FORCE-MSGID, insert message-id regardless of `wl-insert-message-id'."
1144   ;; Insert Message-Id field...
1145   (goto-char (point-min))
1146   (when (and (or force-msgid
1147                  wl-insert-message-id)
1148              (not (re-search-forward "^Message-ID[ \t]*:" nil t)))
1149     (insert (concat "Message-ID: "
1150                     (funcall wl-message-id-function)
1151                     "\n")))
1152   ;; Insert date field.
1153   (goto-char (point-min))
1154   (or (re-search-forward "^Date[ \t]*:" nil t)
1155       (wl-draft-insert-date-field))
1156   ;; Insert from field.
1157   (goto-char (point-min))
1158   (or (re-search-forward "^From[ \t]*:" nil t)
1159       (wl-draft-insert-from-field)))
1160
1161 (defun wl-draft-normal-send-func (editing-buffer kill-when-done)
1162   "Send the message in the current buffer."
1163   (save-restriction
1164     (narrow-to-region (goto-char (point-min))
1165                       (if (re-search-forward
1166                            (concat
1167                             "^" (regexp-quote mail-header-separator) "$")
1168                            nil t)
1169                           (match-beginning 0)
1170                         (point-max)))
1171     (wl-draft-insert-required-fields)
1172     ;; ignore any blank lines in the header
1173     (while (progn (goto-char (point-min))
1174                   (re-search-forward "\n[ \t]*\n\n*" nil t))
1175       (replace-match "\n"))
1176     (goto-char (point-min))
1177     (while (re-search-forward 
1178             "^[^ \t\n:]+:[ \t]*\\(.*\\(\n[ \t].*\\)*\\)\n"
1179             nil t)
1180       (when (string= "" (match-string 1))
1181         (replace-match ""))))
1182 ;;;  (run-hooks 'wl-mail-send-pre-hook) ;; X-PGP-Sig, Cancel-Lock
1183   (wl-draft-dispatch-message)
1184   (when kill-when-done
1185     ;; hide editing-buffer.
1186     (wl-draft-hide editing-buffer)
1187     ;; delete editing-buffer and its file.
1188     (wl-draft-delete editing-buffer)))
1189
1190 (defun wl-draft-dispatch-message (&optional mes-string)
1191   "Send the message in the current buffer.  Not modified the header fields."
1192   (let (delimline mime-bcc)
1193     (if (and wl-draft-verbose-send mes-string)
1194         (message "%s" mes-string))
1195     ;; get fcc folders.
1196     (setq delimline (wl-draft-get-header-delimiter t))
1197     (unless wl-draft-fcc-list
1198       (setq wl-draft-fcc-list (wl-draft-get-fcc-list delimline)))
1199     ;;
1200     (setq wl-sent-message-modified nil)
1201     (unwind-protect
1202         (progn
1203           (if (and (wl-message-mail-p)
1204                    (not (wl-draft-sent-message-p 'mail)))
1205               (if (or (not (or wl-draft-force-queuing
1206                                wl-draft-force-queuing-mail))
1207                       (memq 'mail wl-sent-message-queued))
1208                   (progn
1209                     (setq mime-bcc (wl-draft-mime-bcc-field))
1210                     (funcall wl-draft-send-mail-function)
1211                     (when (not (zerop (length mime-bcc)))
1212                       (wl-draft-do-mime-bcc mime-bcc)))
1213                 (push 'mail wl-sent-message-queued)
1214                 (wl-draft-set-sent-message 'mail 'unplugged)))
1215           (if (and (wl-message-news-p)
1216                    (not (wl-draft-sent-message-p 'news))
1217                    (not (wl-message-field-exists-p "Resent-to")))
1218               (if (or (not (or wl-draft-force-queuing
1219                                wl-draft-force-queuing-news))
1220                       (memq 'news wl-sent-message-queued))
1221                   (funcall wl-draft-send-news-function)
1222                 (push 'news wl-sent-message-queued)
1223                 (wl-draft-set-sent-message 'news 'unplugged))))
1224       (let* ((status (wl-draft-sent-message-results))
1225              (unplugged-via (car status))
1226              (sent-via (nth 1 status)))
1227         ;; If one sent, process fcc folder.
1228         (if (and sent-via wl-draft-fcc-list)
1229             (progn
1230               (wl-draft-do-fcc (wl-draft-get-header-delimiter)
1231                                wl-draft-fcc-list)
1232               (setq wl-draft-fcc-list nil)))
1233         (if wl-draft-use-cache
1234             (let ((id (std11-field-body "Message-ID"))
1235                   (elmo-enable-disconnected-operation t))
1236               (elmo-file-cache-save (elmo-file-cache-get-path id)
1237                                     nil)))
1238         ;; If one unplugged, append queue.
1239         (when (and unplugged-via
1240                    wl-sent-message-modified)
1241           (if wl-draft-enable-queuing
1242               (progn
1243                 (wl-draft-queue-append wl-sent-message-via)
1244                 (setq wl-sent-message-modified 'requeue))
1245             (error "Unplugged")))
1246         (when wl-draft-verbose-send
1247           (if (and unplugged-via sent-via);; combined message
1248               (progn
1249                 (setq wl-draft-verbose-msg
1250                       (format "Sending%s and Queuing%s..."
1251                               sent-via unplugged-via))
1252                 (message "%sdone" wl-draft-verbose-msg))
1253             (if mes-string
1254                 (message "%s%s"
1255                          mes-string
1256                          (if sent-via "done" "failed"))))))))
1257   (not wl-sent-message-modified)) ;; return value
1258
1259 (defun wl-draft-raw-send (&optional kill-when-done force-pre-hook mes-string)
1260   "Force send current buffer as raw message."
1261   (interactive)
1262   (save-excursion
1263     (let (wl-interactive-send
1264 ;;;       wl-draft-verbose-send
1265           (wl-mail-send-pre-hook (and force-pre-hook wl-mail-send-pre-hook))
1266           (wl-news-send-pre-hook (and force-pre-hook wl-news-send-pre-hook))
1267           mail-send-hook
1268           mail-send-actions)
1269       (wl-draft-send kill-when-done mes-string))))
1270
1271 (defun wl-draft-clone-local-variables ()
1272   (let ((locals (buffer-local-variables))
1273         result)
1274     (while locals
1275       (when (and (consp (car locals))
1276                  (car (car locals))
1277                  (string-match wl-draft-clone-local-variable-regexp
1278                                (symbol-name (car (car locals)))))
1279         (wl-append result (list (car (car locals)))))
1280       (setq locals (cdr locals)))
1281     result))
1282
1283 (defun wl-draft-send (&optional kill-when-done mes-string)
1284   "Send current draft message.
1285 If KILL-WHEN-DONE is non-nil, current draft buffer is killed"
1286   (interactive)
1287   ;; Don't call this explicitly.
1288   ;; Added to 'wl-draft-send-hook (by teranisi)
1289   ;; (wl-draft-config-exec)
1290   (run-hooks 'wl-draft-send-hook)
1291   (when (or (not wl-interactive-send)
1292             (y-or-n-p "Do you really want to send current draft? "))
1293     (let ((send-mail-function 'wl-draft-raw-send)
1294           (editing-buffer (current-buffer))
1295           (sending-buffer (wl-draft-generate-clone-buffer
1296                            " *wl-draft-sending-buffer*"
1297                            (append wl-draft-config-variables
1298                                    (wl-draft-clone-local-variables))))
1299           (wl-draft-verbose-msg nil)
1300           err)
1301       (unwind-protect
1302           (save-excursion
1303             (set-buffer sending-buffer)
1304             (if (and (not (wl-message-mail-p))
1305                      (not (wl-message-news-p)))
1306                 (error "No recipient is specified"))
1307             (expand-abbrev)             ; for mail-abbrevs
1308             (let ((mime-header-encode-method-alist
1309                    (append
1310                     '((wl-draft-eword-encode-address-list
1311                        .  (To Cc Bcc Resent-To Resent-Cc Resent-Bcc From)))
1312                     (if (boundp 'mime-header-encode-method-alist)
1313                         (symbol-value 'mime-header-encode-method-alist)))))
1314               (run-hooks 'mail-send-hook) ; translate buffer
1315               )
1316             ;;
1317             (if wl-draft-verbose-send
1318                 (message "%s" (or mes-string "Sending...")))
1319             (funcall wl-draft-send-function editing-buffer kill-when-done)
1320             ;; Now perform actions on successful sending.
1321             (while mail-send-actions
1322               (condition-case ()
1323                   (apply (car (car mail-send-actions))
1324                          (cdr (car mail-send-actions)))
1325                 (error))
1326               (setq mail-send-actions (cdr mail-send-actions)))
1327             (if wl-draft-verbose-send
1328                 (message "%sdone"
1329                          (or wl-draft-verbose-msg
1330                              mes-string
1331                              "Sending..."))))
1332         ;; kill sending buffer, anyway.
1333         (and (buffer-live-p sending-buffer)
1334              (kill-buffer sending-buffer))))))
1335
1336 (defun wl-draft-mime-bcc-field ()
1337   "Return the MIME-Bcc field body.  The field is deleted."
1338   (prog1 (std11-field-body wl-draft-mime-bcc-field-name)
1339     (wl-draft-delete-field wl-draft-mime-bcc-field-name)))
1340
1341 (defun wl-draft-do-mime-bcc (field-body)
1342   "Send MIME-Bcc (Encapsulated blind carbon copy)."
1343   (let ((orig-from (mime-decode-field-body (std11-field-body "from")
1344                                            'From))
1345         (orig-subj (mime-decode-field-body (or (std11-field-body "subject")
1346                                                "")
1347                                            'Subject))
1348         (recipients (wl-parse-addresses field-body))
1349         (draft-buffer (current-buffer))
1350         wl-draft-use-frame)
1351     (save-window-excursion
1352       (when (and (not wl-draft-doing-mime-bcc) ; To avoid infinite loop.
1353                  (not (zerop (length field-body))))
1354         (let ((wl-draft-doing-mime-bcc t))
1355           (dolist (recipient recipients)
1356             (wl-draft-create-buffer)
1357             (wl-draft-create-contents
1358              (append `((From . ,orig-from)
1359                        (To . ,recipient)
1360                        (Subject . ,(concat "A blind carbon copy ("
1361                                            orig-subj
1362                                            ")")))
1363                      (wl-draft-default-headers)))
1364             (wl-draft-insert-mail-header-separator)
1365             (wl-draft-prepare-edit)
1366             (goto-char (point-max))
1367             (insert (or wl-draft-mime-bcc-body
1368                         "This is a blind carbon copy.")
1369                     "\n")
1370             (mime-edit-insert-tag "message" "rfc822")
1371             (insert-buffer draft-buffer)
1372             (let (wl-interactive-send)
1373               (wl-draft-send 'kill-when-done))))))))
1374
1375 ;; Derived from `message-save-drafts' in T-gnus.
1376 (defun wl-draft-save ()
1377   "Save current draft."
1378   (interactive)
1379   (if (buffer-modified-p)
1380       (progn
1381         (message "Saving %s..." wl-draft-buffer-file-name)
1382         (let ((msg (buffer-substring-no-properties (point-min) (point-max))))
1383           (with-temp-file wl-draft-buffer-file-name
1384             (insert msg)
1385             ;; If no header separator, insert it.
1386             (save-excursion
1387               (goto-char (point-min))
1388               (unless (re-search-forward
1389                        (concat "^" (regexp-quote mail-header-separator) "$")
1390                        nil t)
1391                 (goto-char (point-min))
1392                 (if (re-search-forward "\n\n" nil t)
1393                     (replace-match (concat "\n" mail-header-separator "\n"))
1394                   (goto-char (point-max))
1395                   (insert (if (eq (char-before) ?\n) "" "\n")
1396                           mail-header-separator "\n"))))
1397             (let ((mime-header-encode-method-alist
1398                    '((eword-encode-unstructured-field-body))))
1399               (mime-edit-translate-buffer))
1400             (wl-draft-get-header-delimiter t)))
1401         (set-buffer-modified-p nil)
1402         (wl-draft-config-info-operation
1403          (and (string-match "[0-9]+$" wl-draft-buffer-file-name)
1404               (string-to-int
1405                (match-string 0 wl-draft-buffer-file-name)))
1406          'save)
1407         (message "Saving %s...done" wl-draft-buffer-file-name))
1408     (message "(No changes need to be saved)")))
1409
1410 (defun wl-draft-mimic-kill-buffer ()
1411   "Kill the current (draft) buffer with query."
1412   (interactive)
1413   (let ((bufname (read-buffer (format "Kill buffer: (default %s) "
1414                                       (buffer-name))))
1415         wl-draft-use-frame)
1416     (if (or (not bufname)
1417             (string-equal bufname "")
1418             (string-equal bufname (buffer-name)))
1419         (let ((bufname (current-buffer)))
1420           (when (or (not (buffer-modified-p))
1421                     (yes-or-no-p
1422                      (format "Buffer %s modified; kill anyway? " bufname)))
1423             (set-buffer-modified-p nil)
1424             (wl-draft-hide bufname)
1425             (kill-buffer bufname)))
1426       (kill-buffer bufname))))
1427
1428 (defun wl-draft-save-and-exit ()
1429   "Save current draft and exit current draft mode."
1430   (interactive)
1431   (wl-draft-save)
1432   (let ((editing-buffer (current-buffer)))
1433     (wl-draft-hide editing-buffer)
1434     (kill-buffer editing-buffer)))
1435
1436 (defun wl-draft-send-and-exit ()
1437   "Send current draft message and kill it."
1438   (interactive)
1439   (wl-draft-send t))
1440
1441 (defun wl-draft-send-from-toolbar ()
1442   (interactive)
1443   (let ((wl-interactive-send t))
1444     (wl-draft-send-and-exit)))
1445
1446 (defun wl-draft-delete-field (field &optional delimline replace)
1447   (wl-draft-delete-fields (regexp-quote field) delimline replace))
1448
1449 (defun wl-draft-delete-fields (field &optional delimline replace)
1450   (save-restriction
1451     (unless delimline
1452       (goto-char (point-min))
1453       (if (search-forward "\n\n" nil t)
1454           (setq delimline (point))
1455         (setq delimline (point-max))))
1456     (narrow-to-region (point-min) delimline)
1457     (goto-char (point-min))
1458     (let ((regexp (concat "^" field ":"))
1459           (case-fold-search t))
1460       (while (not (eobp))
1461         (if (looking-at regexp)
1462             (progn
1463               (delete-region
1464                (point)
1465                (progn
1466                  (forward-line 1)
1467                  (if (re-search-forward "^[^ \t]" nil t)
1468                      (goto-char (match-beginning 0))
1469                    (point-max))))
1470               (if replace
1471                   (insert (concat field ": " replace "\n"))))
1472           (forward-line 1)
1473           (if (re-search-forward "^[^ \t]" nil t)
1474               (goto-char (match-beginning 0))
1475             (point-max)))))))
1476
1477 (defun wl-draft-get-fcc-list (header-end)
1478   (if (and wl-draft-doing-mime-bcc
1479            wl-draft-disable-fcc-for-mime-bcc)
1480       (progn
1481         (wl-draft-delete-field "fcc")
1482         nil)
1483     (let (fcc-list
1484           (case-fold-search t))
1485       (or (markerp header-end) (error "HEADER-END must be a marker"))
1486       (save-excursion
1487         (goto-char (point-min))
1488         (while (re-search-forward "^Fcc:[ \t]*" header-end t)
1489           (save-match-data
1490             (setq fcc-list
1491                   (append fcc-list
1492                           (split-string
1493                            (buffer-substring-no-properties
1494                             (point)
1495                             (progn
1496                               (end-of-line)
1497                               (skip-chars-backward " \t")
1498                               (point)))
1499                            ",[ \t]*")))
1500             (dolist (folder fcc-list)
1501               (wl-folder-confirm-existence
1502                (wl-folder-get-elmo-folder (eword-decode-string folder)))))
1503           (delete-region (match-beginning 0)
1504                          (progn (forward-line 1) (point)))))
1505       fcc-list)))
1506
1507 (defun wl-draft-do-fcc (header-end &optional fcc-list)
1508   (let ((send-mail-buffer (current-buffer))
1509         (tembuf (generate-new-buffer " fcc output"))
1510         (case-fold-search t)
1511         beg end)
1512     (or (markerp header-end) (error "HEADER-END must be a marker"))
1513     (save-excursion
1514       (unless fcc-list
1515         (setq fcc-list (wl-draft-get-fcc-list header-end)))
1516       (set-buffer tembuf)
1517       (erase-buffer)
1518       ;; insert just the headers to avoid moving the gap more than
1519       ;; necessary (the message body could be arbitrarily huge.)
1520       (insert-buffer-substring send-mail-buffer 1 header-end)
1521       (wl-draft-insert-required-fields t)
1522       (goto-char (point-max))
1523       (insert-buffer-substring send-mail-buffer header-end)
1524       (let ((id (std11-field-body "Message-ID"))
1525             (elmo-enable-disconnected-operation t)
1526             cache-saved)
1527         (while fcc-list
1528           (unless (or cache-saved
1529                       (elmo-folder-plugged-p
1530                        (wl-folder-get-elmo-folder (car fcc-list))))
1531             (elmo-file-cache-save id nil) ;; for disconnected operation
1532             (setq cache-saved t))
1533           (if (elmo-folder-append-buffer
1534                (wl-folder-get-elmo-folder
1535                 (eword-decode-string (car fcc-list)))
1536                (not wl-fcc-force-as-read))
1537               (wl-draft-write-sendlog 'ok 'fcc nil (car fcc-list) id)
1538             (wl-draft-write-sendlog 'failed 'fcc nil (car fcc-list) id))
1539           (setq fcc-list (cdr fcc-list)))))
1540     (kill-buffer tembuf)))
1541
1542 (defun wl-draft-on-field-p ()
1543   (if (< (point)
1544          (save-excursion
1545            (goto-char (point-min))
1546            (search-forward (concat "\n" mail-header-separator "\n") nil 0)
1547            (point)))
1548       (if (bolp)
1549           (if (bobp)
1550               t
1551             (save-excursion
1552               (forward-line -1)
1553               (if (or (looking-at ".*,[ \t]?$")
1554                       (looking-at "^[^ \t]+:[ \t]+.*:$")); group list name
1555                   nil t)))
1556         (let ((pos (point)))
1557           (save-excursion
1558             (beginning-of-line)
1559             (if (looking-at "^[ \t]")
1560                 nil
1561               (if (re-search-forward ":" pos t) nil t)))))))
1562
1563 ;;;;;;;;;;;;;;;;
1564 ;;;###autoload
1565 (defun wl-draft (&optional header-alist
1566                            content-type content-transfer-encoding
1567                            body edit-again
1568                            parent-folder)
1569   "Write and send mail/news message with Wanderlust."
1570   (interactive)
1571   (require 'wl)
1572   (unless wl-init
1573     (wl-load-profile)
1574     (wl-folder-init)
1575     (elmo-init)
1576     (wl-plugged-init t))
1577   (let (wl-demo)
1578     (wl-init)) ; returns immediately if already initialized.
1579
1580
1581   (let (buf-name header-alist-internal)
1582     (setq buf-name
1583           (wl-draft-create-buffer
1584            (or
1585             (eq this-command 'wl-draft)
1586             (eq this-command 'wl-summary-write)
1587             (eq this-command 'wl-summary-write-current-folder)
1588             (eq this-command 'wl-folder-write-current-folder))
1589            parent-folder))
1590
1591     (unless (cdr (assq 'From header-alist))
1592       (setq header-alist
1593             (append (list (cons 'From wl-from)) header-alist)))
1594     (unless (cdr (assq 'To header-alist))
1595       (let ((to))
1596         (when (setq to (and
1597                         (interactive-p)
1598                         ""))
1599           (if (assq 'To header-alist)
1600               (setcdr (assq 'To header-alist) to)
1601             (setq header-alist
1602                   (append header-alist
1603                           (list (cons 'To to))))))))
1604     (unless (cdr (assq 'Subject header-alist))
1605       (if (assq 'Subject header-alist)
1606           (setcdr (assq 'Subject header-alist) "")
1607         (setq header-alist
1608               (append header-alist (list (cons 'Subject ""))))))
1609     (setq header-alist (append header-alist
1610                                (wl-draft-default-headers)
1611                                wl-draft-additional-header-alist
1612                                (if body (list "" (cons 'Body body)))))
1613     (wl-draft-create-contents header-alist)
1614     (if edit-again
1615         (wl-draft-decode-body
1616          content-type content-transfer-encoding))
1617     (wl-draft-insert-mail-header-separator)
1618     (wl-draft-prepare-edit)
1619     (if (interactive-p)
1620         (run-hooks 'wl-mail-setup-hook))
1621     (goto-char (point-min))
1622     (wl-user-agent-compose-internal) ;; user-agent
1623     (cond ((and
1624             (interactive-p)
1625             (string= (cdr (assq 'To header-alist)) ""))
1626            (mail-position-on-field "To"))
1627           (t
1628            (goto-char (point-max))))
1629     buf-name))
1630
1631 (defun wl-draft-create-buffer (&optional full parent-folder)
1632   (let* ((draft-folder (wl-folder-get-elmo-folder wl-draft-folder))
1633          (parent-folder (or parent-folder (wl-summary-buffer-folder-name)))
1634          (summary-buf (wl-summary-get-buffer parent-folder))
1635         buf-name file-name num change-major-mode-hook)
1636     (if (not (elmo-folder-message-file-p draft-folder))
1637         (error "%s folder cannot be used for draft folder" wl-draft-folder))
1638     (setq num (elmo-max-of-list
1639                (or (elmo-folder-list-messages draft-folder) '(0))))
1640     (setq num (+ 1 num))
1641     ;; To get unused buffer name.
1642     (while (get-buffer (concat wl-draft-folder "/" (int-to-string num)))
1643       (setq num (+ 1 num)))
1644     (setq buf-name (find-file-noselect
1645                     (setq file-name
1646                           (elmo-message-file-name
1647                            (wl-folder-get-elmo-folder wl-draft-folder)
1648                            num))))
1649     (if wl-draft-use-frame
1650         (switch-to-buffer-other-frame buf-name)
1651       (switch-to-buffer buf-name))
1652     (set-buffer buf-name)
1653     (if (not (string-match (regexp-quote wl-draft-folder)
1654                            (buffer-name)))
1655         (rename-buffer (concat wl-draft-folder "/" (int-to-string num))))
1656     (if (or (eq wl-draft-reply-buffer-style 'full)
1657             full)
1658         (delete-other-windows))
1659     (auto-save-mode -1)
1660     (wl-draft-mode)
1661     (make-local-variable 'truncate-partial-width-windows)
1662     (setq truncate-partial-width-windows nil)
1663     (setq truncate-lines wl-draft-truncate-lines)
1664     (setq wl-sent-message-via nil)
1665     (setq wl-sent-message-queued nil)
1666     (setq wl-draft-buffer-file-name file-name)
1667     (setq wl-draft-config-exec-flag t)
1668     (setq wl-draft-parent-folder (or parent-folder ""))
1669     (or (eq this-command 'wl-folder-write-current-folder)
1670         (setq wl-draft-buffer-cur-summary-buffer summary-buf))
1671     buf-name))
1672
1673 (defun wl-draft-create-contents (header-alist)
1674   "header-alist' sample
1675 '(function  ;; funcall
1676   string    ;; insert string
1677   (symbol . string)    ;;  insert symbol-value: string
1678   (symbol . function)  ;;  (funcall) and if it returns string,
1679                        ;;  insert symbol-value: string
1680   (symbol . nil)       ;;  do nothing
1681   nil                  ;;  do nothing
1682   )"
1683   (unless (eq major-mode 'wl-draft-mode)
1684     (error "`wl-draft-create-header' must be use in wl-draft-mode"))
1685   (let ((halist header-alist)
1686         field value)
1687     (while halist
1688       (cond
1689        ;; function
1690        ((functionp (car halist)) (funcall (car halist)))
1691        ;; string
1692        ((stringp (car halist)) (insert (car halist) "\n"))
1693        ;; cons
1694        ((consp (car halist))
1695         (setq field (car (car halist)))
1696         (setq value (cdr (car halist)))
1697         (cond
1698          ((symbolp field)
1699           (cond
1700            ((eq field 'Body) ; body
1701             (insert value))
1702            ((stringp value) (insert (symbol-name field) ": " value "\n"))
1703            ((functionp value)
1704             (let ((value-return (funcall value)))
1705               (when (stringp value-return)
1706                 (insert (symbol-name field) ": " value-return "\n"))))
1707            ((not value))
1708            (t
1709             (debug))))
1710          ;;
1711          ((not field))
1712          (t
1713           (debug))
1714          )))
1715       (setq halist (cdr halist)))))
1716
1717 (defun wl-draft-prepare-edit ()
1718   (unless (eq major-mode 'wl-draft-mode)
1719     (error "`wl-draft-create-header' must be use in wl-draft-mode"))
1720   (let (change-major-mode-hook)
1721     (wl-draft-editor-mode)
1722     (add-hook 'local-write-file-hooks 'wl-draft-save)
1723     (wl-draft-overload-functions)
1724     (wl-highlight-headers 'for-draft)
1725     (wl-draft-save)
1726     (clear-visited-file-modtime)))
1727
1728 (defun wl-draft-decode-header ()
1729   (save-excursion
1730     (std11-narrow-to-header)
1731     (wl-draft-decode-message-in-buffer)
1732     (widen)))
1733
1734 (defun wl-draft-decode-body (&optional content-type content-transfer-encoding)
1735   (let ((content-type
1736          (or content-type
1737                 (std11-field-body "content-type")))
1738         (content-transfer-encoding
1739          (or content-transfer-encoding
1740              (std11-field-body "content-transfer-encoding")))
1741         delimline)
1742     (save-excursion
1743       (std11-narrow-to-header)
1744       (wl-draft-delete-field "content-type")
1745       (wl-draft-delete-field "content-transfer-encoding")
1746       (goto-char (point-max))
1747       (setq delimline (point-marker))
1748       (widen)
1749       (narrow-to-region delimline (point-max))
1750       (goto-char (point-min))
1751       (when content-type
1752         (insert "Content-type: " content-type "\n"))
1753       (when content-transfer-encoding
1754         (insert "Content-Transfer-Encoding: " content-transfer-encoding "\n"))
1755       (wl-draft-decode-message-in-buffer)
1756       (goto-char (point-min))
1757       (unless (re-search-forward "^$" (point-at-eol) t)
1758         (insert "\n"))
1759       (widen)
1760       delimline)))
1761
1762 ;;; subroutine for wl-draft-create-contents
1763 ;;; must be used in wl-draft-mode
1764 (defun wl-draft-check-new-line ()
1765   (if (not (= (preceding-char) ?\n))
1766       (insert ?\n)))
1767
1768 (defsubst wl-draft-trim-ccs (cc)
1769   (let ((field
1770          (if (functionp cc)
1771              (funcall cc)
1772            cc)))
1773     (if (and field
1774              (null (and wl-draft-delete-myself-from-bcc-fcc
1775                         (elmo-list-member
1776                          (mapcar 'wl-address-header-extract-address
1777                                  (append
1778                                   (wl-parse-addresses (std11-field-body "To"))
1779                                   (wl-parse-addresses (std11-field-body "Cc"))))
1780                          (mapcar 'downcase wl-subscribed-mailing-list)))))
1781         field
1782       nil)))
1783
1784 (defsubst wl-draft-default-headers ()
1785   (list
1786    (cons 'Mail-Reply-To (and wl-insert-mail-reply-to
1787                              (wl-address-header-extract-address
1788                               wl-from)))
1789    (cons 'User-Agent wl-generate-mailer-string-function)
1790    (cons 'Reply-To mail-default-reply-to)
1791    (cons 'Bcc (function
1792                (lambda ()
1793                  (wl-draft-trim-ccs
1794                   (or wl-bcc (and mail-self-blind (user-login-name)))))))
1795    (cons 'Fcc (function
1796                (lambda ()
1797                  (wl-draft-trim-ccs wl-fcc))))
1798    (cons 'Organization wl-organization)
1799    (and wl-auto-insert-x-face
1800         (file-exists-p wl-x-face-file)
1801         'wl-draft-insert-x-face-field-here) ;; allow nil
1802    mail-default-headers
1803    ;; check \n at th end of line for `mail-default-headers'
1804    'wl-draft-check-new-line
1805    ))
1806
1807 (defun wl-draft-insert-mail-header-separator (&optional delimline)
1808   (save-excursion
1809     (if delimline
1810         (goto-char delimline)
1811       (goto-char (point-min))
1812       (if (search-forward "\n\n" nil t)
1813           (delete-backward-char 1)
1814         (goto-char (point-max))))
1815     (wl-draft-check-new-line)
1816     (put-text-property (point)
1817                        (progn
1818                          (insert mail-header-separator "\n")
1819                          (1- (point)))
1820                        'category 'mail-header-separator)))
1821
1822 ;;;;;;;;;;;;;;;;
1823
1824 (defun wl-draft-elmo-nntp-send ()
1825   (let ((elmo-nntp-post-pre-hook wl-news-send-pre-hook)
1826         (elmo-nntp-default-user
1827          (or wl-nntp-posting-user elmo-nntp-default-user))
1828         (elmo-nntp-default-server
1829          (or wl-nntp-posting-server elmo-nntp-default-server))
1830         (elmo-nntp-default-port
1831          (or wl-nntp-posting-port elmo-nntp-default-port))
1832         (elmo-nntp-default-stream-type
1833          (or wl-nntp-posting-stream-type elmo-nntp-default-stream-type))
1834         (elmo-nntp-default-function wl-nntp-posting-function)
1835         condition)
1836     (if (setq condition (cdr (elmo-string-matched-assoc
1837                               (std11-field-body "Newsgroups")
1838                               wl-nntp-posting-config-alist)))
1839         (if (stringp condition)
1840             (setq elmo-nntp-default-server condition)
1841           (while (car condition)
1842             (set (intern (format "elmo-nntp-default-%s"
1843                                  (symbol-name (caar condition))))
1844                  (cdar condition))
1845             (setq condition (cdr condition)))))
1846     (unless elmo-nntp-default-function
1847       (error "wl-draft-nntp-send: posting-function is nil"))
1848     (if (not (elmo-plugged-p elmo-nntp-default-server elmo-nntp-default-port))
1849         (wl-draft-set-sent-message 'news 'unplugged
1850                                    (cons elmo-nntp-default-server
1851                                          elmo-nntp-default-port))
1852       (funcall elmo-nntp-default-function
1853                elmo-nntp-default-server (current-buffer))
1854       (wl-draft-set-sent-message 'news 'sent)
1855       (wl-draft-write-sendlog 'ok 'nntp elmo-nntp-default-server
1856                               (std11-field-body "Newsgroups")
1857                               (std11-field-body "Message-ID")))))
1858
1859 (defun wl-draft-generate-clone-buffer (name &optional local-variables)
1860   "Generate clone of current buffer named NAME."
1861   (let ((editing-buffer (current-buffer)))
1862     (save-excursion
1863       (set-buffer (generate-new-buffer name))
1864       (erase-buffer)
1865       (wl-draft-mode)
1866       (wl-draft-editor-mode)
1867       (insert-buffer editing-buffer)
1868       (message "")
1869       (while local-variables
1870         (make-local-variable (car local-variables))
1871         (set (car local-variables)
1872              (save-excursion
1873                (set-buffer editing-buffer)
1874                (symbol-value (car local-variables))))
1875         (setq local-variables (cdr local-variables)))
1876       (current-buffer))))
1877
1878 (defun wl-draft-reedit (number)
1879   (let ((draft-folder (wl-folder-get-elmo-folder wl-draft-folder))
1880         (wl-draft-reedit t)
1881         buffer file-name change-major-mode-hook)
1882     (setq file-name (elmo-message-file-name draft-folder number))
1883     (unless (file-exists-p file-name)
1884       (error "File %s does not exist" file-name))
1885     (if (setq buffer (get-buffer
1886                       (concat wl-draft-folder "/"
1887                               (number-to-string number))))
1888         (progn
1889           (if wl-draft-use-frame
1890               (switch-to-buffer-other-frame buffer)
1891             (switch-to-buffer buffer))
1892           (set-buffer buffer))
1893       (setq buffer (get-buffer-create (number-to-string number)))
1894       (if wl-draft-use-frame
1895           (switch-to-buffer-other-frame buffer)
1896         (switch-to-buffer buffer))
1897       (set-buffer buffer)
1898       (insert-file-contents-as-binary file-name)
1899       (elmo-delete-cr-buffer)
1900       (let((mime-edit-again-ignored-field-regexp
1901             "^\\(Content-.*\\|Mime-Version\\):"))
1902 ;       (wl-draft-decode-message-in-buffer))
1903         ;;;; From gnus-article-mime-edit-article-setup in T-gnus
1904         ;;;; XXX: it is semi issue, perhaps [wl:10790]
1905         (let ((ofn (symbol-function 'mime-edit-decode-single-part-in-buffer)))
1906           (fset 'mime-edit-decode-single-part-in-buffer
1907                 (lambda (&rest args)
1908                   (unless (let ((content-type (car args)))
1909                             (eq 'text (mime-content-type-primary-type
1910                                        content-type)))
1911                     (setcar (cdr args) 'not-decode-text))
1912                   (apply ofn args)))
1913           (unwind-protect
1914               (wl-draft-decode-message-in-buffer)
1915             (fset 'mime-edit-decode-single-part-in-buffer ofn))))
1916       (wl-draft-insert-mail-header-separator)
1917       (if (not (string-match (regexp-quote wl-draft-folder)
1918                              (buffer-name)))
1919           (rename-buffer (concat wl-draft-folder "/" (buffer-name))))
1920       (auto-save-mode -1)
1921       (wl-draft-mode)
1922       (setq buffer-file-name file-name)
1923       (make-local-variable 'truncate-partial-width-windows)
1924       (setq truncate-partial-width-windows nil)
1925       (setq truncate-lines wl-draft-truncate-lines)
1926       (setq wl-sent-message-via nil)
1927       (setq wl-sent-message-queued nil)
1928       (setq wl-draft-buffer-file-name file-name)
1929       (wl-draft-config-info-operation number 'load)
1930       (goto-char (point-min))
1931       (wl-draft-overload-functions)
1932       (wl-draft-editor-mode)
1933       (add-hook 'local-write-file-hooks 'wl-draft-save)
1934       (wl-highlight-headers 'for-draft)
1935       (run-hooks 'wl-draft-reedit-hook)
1936       (goto-char (point-max))
1937       buffer)))
1938
1939 (defmacro wl-draft-body-goto-top ()
1940   (` (progn
1941        (goto-char (point-min))
1942        (if (re-search-forward mail-header-separator nil t)
1943            (forward-char 1)
1944          (goto-char (point-max))))))
1945
1946 (defmacro wl-draft-body-goto-bottom ()
1947   (` (goto-char (point-max))))
1948
1949 (defmacro wl-draft-config-body-goto-header ()
1950   (` (progn
1951        (goto-char (point-min))
1952        (if (re-search-forward mail-header-separator nil t)
1953            (beginning-of-line)
1954          (goto-char (point-max))))))
1955
1956 (defsubst wl-draft-config-sub-eval-insert (content &optional newline)
1957   (let (content-value)
1958     (when (and content
1959                (stringp (setq content-value (eval content))))
1960       (insert content-value)
1961       (if newline (insert "\n")))))
1962
1963 (defun wl-draft-config-sub-body (content)
1964   (wl-draft-body-goto-top)
1965   (delete-region (point) (point-max))
1966   (wl-draft-config-sub-eval-insert content))
1967
1968 (defun wl-draft-config-sub-top (content)
1969   (wl-draft-body-goto-top)
1970   (wl-draft-config-sub-eval-insert content))
1971
1972 (defun wl-draft-config-sub-bottom (content)
1973   (wl-draft-body-goto-bottom)
1974   (wl-draft-config-sub-eval-insert content))
1975
1976 (defun wl-draft-config-sub-header (content)
1977   (wl-draft-config-body-goto-header)
1978   (wl-draft-config-sub-eval-insert content 'newline))
1979
1980 (defun wl-draft-config-sub-header-top (content)
1981   (goto-char (point-min))
1982   (wl-draft-config-sub-eval-insert content 'newline))
1983
1984 (defun wl-draft-config-sub-part-top (content)
1985   (goto-char (mime-edit-content-beginning))
1986   (wl-draft-config-sub-eval-insert content 'newline))
1987
1988 (defun wl-draft-config-sub-part-bottom (content)
1989   (goto-char (mime-edit-content-end))
1990   (wl-draft-config-sub-eval-insert content 'newline))
1991
1992 (defsubst wl-draft-config-sub-file (content)
1993   (let ((coding-system-for-read wl-cs-autoconv)
1994         (file (expand-file-name (eval content))))
1995     (if (file-exists-p file)
1996         (insert-file-contents file)
1997       (error "%s: no exists file" file))))
1998
1999 (defun wl-draft-config-sub-body-file (content)
2000   (wl-draft-body-goto-top)
2001   (delete-region (point) (point-max))
2002   (wl-draft-config-sub-file content))
2003
2004 (defun wl-draft-config-sub-top-file (content)
2005   (wl-draft-body-goto-top)
2006   (wl-draft-config-sub-file content))
2007
2008 (defun wl-draft-config-sub-bottom-file (content)
2009   (wl-draft-body-goto-bottom)
2010   (wl-draft-config-sub-file content))
2011
2012 (defun wl-draft-config-sub-header-file (content)
2013   (wl-draft-config-body-goto-header)
2014   (wl-draft-config-sub-file content))
2015
2016 (defun wl-draft-config-sub-template (content)
2017   (setq wl-draft-config-variables
2018         (wl-template-insert (eval content))))
2019
2020 (defun wl-draft-config-sub-x-face (content)
2021   (if (and (string-match "\\.xbm\\(\\.gz\\)?$" content)
2022            (fboundp 'x-face-insert)) ; x-face.el is installed.
2023       (x-face-insert content)
2024     (wl-draft-replace-field "X-Face" (elmo-get-file-string content t) t)))
2025
2026 (defsubst wl-draft-config-sub-func (field content)
2027   (let (func)
2028     (if (setq func (assq field wl-draft-config-sub-func-alist))
2029         (let (wl-draft-config-variables)
2030           (funcall (cdr func) content)
2031           ;; for wl-draft-config-sub-template
2032           (cons t wl-draft-config-variables)))))
2033
2034 (defsubst wl-draft-config-exec-sub (clist)
2035   (let (config local-variables)
2036     (while clist
2037       (setq config (car clist))
2038       (cond
2039        ((functionp config)
2040         (funcall config))
2041        ((consp config)
2042         (let ((field (car config))
2043               (content (cdr config))
2044               ret-val)
2045           (cond
2046            ((stringp field)
2047             (wl-draft-replace-field field (eval content) t))
2048            ((setq ret-val (wl-draft-config-sub-func field content))
2049             (if (cdr ret-val) ;; for wl-draft-config-sub-template
2050                 (wl-append local-variables (cdr ret-val))))
2051            ((boundp field) ;; variable
2052             (make-local-variable field)
2053             (set field (eval content))
2054             (wl-append local-variables (list field)))
2055            (t
2056             (error "%s: not variable" field)))))
2057        (t
2058         (error "%s: not supported type" config)))
2059       (setq clist (cdr clist)))
2060     local-variables))
2061
2062 (defun wl-draft-prepared-config-exec (&optional config-alist reply-buf)
2063   "Change headers in draft preparation time."
2064   (interactive)
2065   (unless wl-draft-reedit
2066     (let ((config-alist
2067            (or config-alist
2068                (and (boundp 'wl-draft-prepared-config-alist)
2069                     wl-draft-prepared-config-alist)     ;; For compatible.
2070                wl-draft-config-alist)))
2071       (if config-alist
2072           (wl-draft-config-exec config-alist reply-buf)))))
2073
2074 (defun wl-draft-config-exec (&optional config-alist reply-buf)
2075   "Change headers according to the value of `wl-draft-config-alist'.
2076 Automatically applied in draft sending time."
2077   (interactive)
2078   (let ((case-fold-search t)
2079         (alist (or config-alist wl-draft-config-alist))
2080         (reply-buf (or reply-buf (and (buffer-live-p wl-draft-reply-buffer)
2081                                       wl-draft-reply-buffer)))
2082         (local-variables wl-draft-config-variables)
2083         key clist found)
2084     (when (and (or (interactive-p)
2085                    wl-draft-config-exec-flag)
2086                alist)
2087       (save-excursion
2088         (catch 'done
2089           (while alist
2090             (setq key (caar alist)
2091                   clist (cdar alist))
2092             (cond
2093              ((eq key 'reply)
2094               (when (and
2095                      reply-buf
2096                      (save-excursion
2097                        (set-buffer reply-buf)
2098                        (save-restriction
2099                          (std11-narrow-to-header)
2100                          (goto-char (point-min))
2101                          (re-search-forward (car clist) nil t))))
2102                 (wl-draft-config-exec-sub (cdr clist))
2103                 (setq found t)))
2104              ((stringp key)
2105               (when (save-restriction
2106                       (std11-narrow-to-header mail-header-separator)
2107                       (goto-char (point-min))
2108                       (re-search-forward key nil t))
2109                 (wl-append local-variables
2110                            (wl-draft-config-exec-sub clist))
2111                 (setq found t)))
2112              ((eval key)
2113               (wl-append local-variables
2114                          (wl-draft-config-exec-sub clist))
2115               (setq found t)))
2116             (if (and found wl-draft-config-matchone)
2117                 (throw 'done t))
2118             (setq alist (cdr alist))))
2119         (if found
2120             (setq wl-draft-config-exec-flag nil))
2121         (run-hooks 'wl-draft-config-exec-hook)
2122         (put-text-property (point-min)(point-max) 'face nil)
2123         (wl-highlight-message (point-min)(point-max) t)
2124         (setq wl-draft-config-variables
2125               (elmo-uniq-list local-variables))))))
2126
2127 (defun wl-draft-replace-field (field content &optional add)
2128   (save-excursion
2129     (save-restriction
2130       (let ((case-fold-search t)
2131             (inhibit-read-only t) ;; added by teranisi.
2132             beg)
2133         (std11-narrow-to-header mail-header-separator)
2134         (goto-char (point-min))
2135         (if (re-search-forward (concat "^" (regexp-quote field) ":") nil t)
2136             (if content
2137                 ;; replace field
2138                 (progn
2139                   (setq beg (point))
2140                   (re-search-forward "^[^ \t]" nil 'move)
2141                   (beginning-of-line)
2142                   (skip-chars-backward "\n")
2143                   (delete-region beg (point))
2144                   (insert " " content))
2145               ;; delete field
2146               (save-excursion
2147                 (beginning-of-line)
2148                 (setq beg (point)))
2149               (re-search-forward "^[^ \t]" nil 'move)
2150               (beginning-of-line)
2151               (delete-region beg (point)))
2152           (when (and add content)
2153             ;; add field
2154             (goto-char (point-max))
2155             (insert (concat field ": " content "\n"))))))))
2156
2157 (defun wl-draft-config-info-operation (msg operation)
2158   (let* ((msgdb-dir (elmo-folder-msgdb-path (wl-folder-get-elmo-folder
2159                                              wl-draft-folder)))
2160          (filename
2161           (expand-file-name
2162            (format "%s-%d" wl-draft-config-save-filename msg)
2163            msgdb-dir))
2164          element alist variable)
2165     (cond
2166      ((eq operation 'save)
2167       (let ((variables (elmo-uniq-list wl-draft-config-variables)))
2168         (while (setq variable (pop variables))
2169           (when (boundp variable)
2170             (wl-append alist
2171                        (list (cons variable (eval variable))))))
2172         (elmo-object-save filename alist)))
2173      ((eq operation 'load)
2174       (setq alist (elmo-object-load filename))
2175       (while (setq element (pop alist))
2176         (set (make-local-variable (car element)) (cdr element))
2177         (wl-append wl-draft-config-variables (list (car element)))))
2178      ((eq operation 'delete)
2179       (if (file-exists-p filename)
2180           (delete-file filename))))))
2181
2182 (defun wl-draft-queue-info-operation (msg operation
2183                                           &optional add-sent-message-via)
2184   (let* ((msgdb-dir (elmo-folder-msgdb-path
2185                      (wl-folder-get-elmo-folder wl-queue-folder)))
2186          (filename
2187           (expand-file-name
2188            (format "%s-%d" wl-draft-queue-save-filename msg)
2189            msgdb-dir))
2190          element alist variable)
2191     (cond
2192      ((eq operation 'save)
2193       (let ((variables (elmo-uniq-list
2194                         (append wl-draft-queue-save-variables
2195                                 wl-draft-config-variables
2196                                 (list 'wl-draft-fcc-list)))))
2197         (if add-sent-message-via
2198             (progn
2199               (push 'wl-sent-message-queued variables)
2200               (push 'wl-sent-message-via variables)))
2201         (while (setq variable (pop variables))
2202           (when (boundp variable)
2203             (wl-append alist
2204                        (list (cons variable (eval variable))))))
2205         (elmo-object-save filename alist)))
2206      ((eq operation 'load)
2207       (setq alist (elmo-object-load filename))
2208       (while (setq element (pop alist))
2209         (set (make-local-variable (car element)) (cdr element))))
2210      ((eq operation 'get-sent-via)
2211       (setq alist (elmo-object-load filename))
2212       (cdr (assq 'wl-sent-message-via alist)))
2213      ((eq operation 'delete)
2214       (if (file-exists-p filename)
2215           (delete-file filename))))))
2216
2217 (defun wl-draft-queue-append (wl-sent-message-via)
2218   (if wl-draft-verbose-send
2219       (message "Queuing..."))
2220   (let ((send-buffer (current-buffer))
2221         (folder (wl-folder-get-elmo-folder wl-queue-folder))
2222         (message-id (std11-field-body "Message-ID")))
2223     (if (elmo-folder-append-buffer folder t)
2224         (progn
2225           (wl-draft-queue-info-operation
2226            (car (elmo-folder-status folder))
2227            'save wl-sent-message-via)
2228           (wl-draft-write-sendlog 'ok 'queue nil wl-queue-folder message-id)
2229           (when wl-draft-verbose-send
2230             (setq wl-draft-verbose-msg "Queuing...")
2231             (message "Queuing...done")))
2232       (wl-draft-write-sendlog 'failed 'queue nil wl-queue-folder message-id)
2233       (error "Queuing failed"))))
2234
2235 (defun wl-draft-queue-flush ()
2236   "Flush draft queue."
2237   (interactive)
2238   (let* ((queue-folder (wl-folder-get-elmo-folder wl-queue-folder))
2239          (msgs2 (progn
2240                   (elmo-folder-open-internal queue-folder)
2241                   (elmo-folder-list-messages queue-folder)))
2242          (i 0)
2243          (performed 0)
2244          (wl-draft-queue-flushing t)
2245          msgs failure len buffer msgid sent-via)
2246     ;; get plugged send message
2247     (while msgs2
2248       (setq sent-via (wl-draft-queue-info-operation (car msgs2) 'get-sent-via))
2249       (catch 'found
2250         (while sent-via
2251           (when (and (eq (nth 1 (car sent-via)) 'unplugged)
2252                      (or (not (nth 2 (car sent-via)))
2253                          (elmo-plugged-p
2254                           (car (nth 2 (car sent-via)))
2255                           (cdr (nth 2 (car sent-via))))))
2256             (wl-append msgs (list (car msgs2)))
2257             (throw 'found t))
2258           (setq sent-via (cdr sent-via))))
2259       (setq msgs2 (cdr msgs2)))
2260     (when (> (setq len (length msgs)) 0)
2261       (if (elmo-y-or-n-p (format
2262                           "%d message(s) are in the sending queue.  Send now? "
2263                           len)
2264                          (not elmo-dop-flush-confirm) t)
2265           (progn
2266             (save-excursion
2267               (setq buffer (get-buffer-create " *wl-draft-queue-flush*"))
2268               (set-buffer buffer)
2269               (while msgs
2270                 ;; reset buffer local variables
2271                 (kill-all-local-variables)
2272                 (erase-buffer)
2273                 (setq i (+ 1 i)
2274                       failure nil)
2275                 (setq wl-sent-message-via nil)
2276                 (wl-draft-queue-info-operation (car msgs) 'load)
2277                 (elmo-message-fetch queue-folder
2278                                     (car msgs)
2279                                     (elmo-make-fetch-strategy 'entire)
2280                                     nil (current-buffer))
2281                 (condition-case err
2282                     (setq failure (funcall
2283                                    wl-draft-queue-flush-send-function
2284                                    (format "Sending (%d/%d)..." i len)))
2285 ;;;               (wl-draft-raw-send nil nil
2286 ;;;                                  (format "Sending (%d/%d)..." i len))
2287                   (error
2288                    (elmo-display-error err t)
2289                    (setq failure t))
2290                   (quit
2291                    (setq failure t)))
2292                 (if (eq wl-sent-message-modified 'requeue)
2293                     (progn
2294                       (elmo-folder-delete-messages
2295                        queue-folder (cons (car msgs) nil))
2296                       (wl-draft-queue-info-operation (car msgs) 'delete))
2297                   (unless failure
2298                     (elmo-folder-delete-messages
2299                      queue-folder (cons (car msgs) nil))
2300                     (wl-draft-queue-info-operation (car msgs) 'delete)
2301                     (setq performed (+ 1 performed))))
2302                 (setq msgs (cdr msgs)))
2303               (kill-buffer buffer)
2304               (message "%d message(s) are sent." performed)))
2305         (message "%d message(s) are remained to be sent." len))
2306       (elmo-folder-close queue-folder)
2307       len)))
2308
2309 (defun wl-jump-to-draft-buffer (&optional arg)
2310   "Jump to the draft if exists."
2311   (interactive "P")
2312   (if arg
2313       (wl-jump-to-draft-folder)
2314     (let ((draft-bufs (wl-collect-draft))
2315           buf)
2316       (cond
2317        ((null draft-bufs)
2318         (message "No draft buffer exist."))
2319        (t
2320         (setq draft-bufs
2321               (sort (mapcar 'buffer-name draft-bufs)
2322                     (function (lambda (a b)
2323                                 (not (string< a b))))))
2324         (if (setq buf (cdr (member (buffer-name)
2325                                    draft-bufs)))
2326             (setq buf (car buf))
2327           (setq buf (car draft-bufs)))
2328         (switch-to-buffer buf))))))
2329
2330 (defun wl-jump-to-draft-folder ()
2331   (let ((msgs (reverse (elmo-folder-list-messages (wl-folder-get-elmo-folder
2332                                                    wl-draft-folder))))
2333         (mybuf (buffer-name))
2334         msg buf)
2335     (if (not msgs)
2336         (message "No draft message exist.")
2337       (if (string-match (concat "^" wl-draft-folder "/") mybuf)
2338           (setq msg (cadr (memq
2339                            (string-to-int (substring mybuf (match-end 0)))
2340                            msgs))))
2341       (or msg (setq msg (car msgs)))
2342       (if (setq buf (get-buffer (format "%s/%d" wl-draft-folder msg)))
2343           (switch-to-buffer buf)
2344         (wl-draft-reedit msg)))))
2345
2346 (defun wl-draft-highlight-and-recenter (&optional n)
2347   (interactive "P")
2348   (when wl-highlight-body-too
2349     (let ((modified (buffer-modified-p)))
2350       (unwind-protect
2351           (progn
2352             (put-text-property (point-min) (point-max) 'face nil)
2353             (wl-highlight-message (point-min) (point-max) t))
2354         (set-buffer-modified-p modified))))
2355   (static-when (featurep 'xemacs)
2356     ;; Cope with one of many XEmacs bugs that `recenter' takes
2357     ;; a long time if there are a lot of invisible text lines.
2358     (redraw-frame))
2359   (recenter n))
2360
2361 ;;;; user-agent support by Sen Nagata
2362
2363 ;; this appears to be necessarily global...
2364 (defvar wl-user-agent-compose-p nil)
2365 (defvar wl-user-agent-headers-and-body-alist nil)
2366
2367 ;; this should be a generic function for mail-mode -- i wish there was
2368 ;; something like it in sendmail.el
2369 (defun wl-user-agent-insert-header (header-name header-value)
2370   "Insert HEADER-NAME w/ value HEADER-VALUE into a message."
2371   ;; it seems like overriding existing headers is acceptable -- should
2372   ;; we provide an option?
2373
2374   ;; plan was: unfold header (might be folded), remove existing value, insert
2375   ;;           new value
2376   ;; wl doesn't seem to fold header lines yet anyway :-)
2377
2378   (let ((kill-whole-line t)
2379         end-of-line)
2380     (mail-position-on-field (capitalize header-name))
2381     (setq end-of-line (point))
2382     (beginning-of-line)
2383     (re-search-forward ":" end-of-line)
2384     (insert (concat " " header-value "\n"))
2385     (kill-line)))
2386
2387 ;; this should be a generic function for mail-mode -- i wish there was
2388 ;; something like it in sendmail.el
2389 ;;
2390 ;; ** haven't dealt w/ case where the body is already set **
2391 (defun wl-user-agent-insert-body (body-text)
2392   "Insert a body of text, BODY-TEXT, into a message."
2393   ;; code defensively... :-P
2394   (goto-char (point-min))
2395   (search-forward mail-header-separator)
2396   (forward-line 1)
2397   (insert body-text))
2398
2399 ;;;###autoload
2400 (defun wl-user-agent-compose (&optional to subject other-headers continue
2401                                         switch-function yank-action
2402                                         send-actions)
2403   "Support the `compose-mail' interface for wl.
2404 Only support for TO, SUBJECT, and OTHER-HEADERS has been implemented.
2405 Support for CONTINUE, YANK-ACTION, and SEND-ACTIONS has not
2406 been implemented yet.  Partial support for SWITCH-FUNCTION now supported."
2407
2408   (unless (featurep 'wl)
2409     (require 'wl))
2410   ;; protect these -- to and subject get bound at some point, so it looks
2411   ;; to be necessary to protect the values used w/in
2412   (let ((wl-user-agent-headers-and-body-alist other-headers)
2413         (wl-draft-use-frame (eq switch-function 'switch-to-buffer-other-frame))
2414         (wl-draft-reply-buffer-style 'split))
2415     (when (eq switch-function 'switch-to-buffer-other-window)
2416       (when (one-window-p t)
2417         (if (window-minibuffer-p) (other-window 1))
2418         (split-window))
2419       (other-window 1))
2420     (if to
2421         (if (wl-string-match-assoc "to" wl-user-agent-headers-and-body-alist
2422                                    'ignore-case)
2423             (setcdr
2424              (wl-string-match-assoc "to" wl-user-agent-headers-and-body-alist
2425                                     'ignore-case)
2426              to)
2427           (setq wl-user-agent-headers-and-body-alist
2428                 (cons (cons "to" to)
2429                       wl-user-agent-headers-and-body-alist))))
2430     (if subject
2431         (if (wl-string-match-assoc "subject"
2432                                    wl-user-agent-headers-and-body-alist
2433                                    'ignore-case)
2434             (setcdr
2435              (wl-string-match-assoc "subject"
2436                                     wl-user-agent-headers-and-body-alist
2437                                     'ignore-case)
2438              subject)
2439           (setq wl-user-agent-headers-and-body-alist
2440                 (cons (cons "subject" subject)
2441                       wl-user-agent-headers-and-body-alist))))
2442     ;; i think this is what we want to use...
2443     (unwind-protect
2444         (progn
2445           ;; tell the hook-function to do its stuff
2446           (setq wl-user-agent-compose-p t)
2447           ;; because to get the hooks working, wl-draft has to think it has
2448           ;; been called interactively
2449           (call-interactively 'wl-draft))
2450       (setq wl-user-agent-compose-p nil))))
2451
2452 (defun wl-user-agent-compose-internal ()
2453   "Manipulate headers and/or a body of a draft message."
2454   ;; being called from wl-user-agent-compose?
2455   (if wl-user-agent-compose-p
2456       (progn
2457         ;; insert headers
2458         (let ((headers wl-user-agent-headers-and-body-alist)
2459               (case-fold-search t))
2460           (while headers
2461             ;; skip body
2462             (if (not (string-match "^body$" (car (car headers))))
2463                 (wl-user-agent-insert-header
2464                  (car (car headers)) (cdr (car headers)))
2465               t)
2466             (setq headers (cdr headers))))
2467         ;; highlight headers (from wl-draft in wl-draft.el)
2468         (wl-highlight-headers 'for-draft)
2469         ;; insert body
2470         (if (wl-string-match-assoc "body" wl-user-agent-headers-and-body-alist
2471                                    'ignore-case)
2472             (wl-user-agent-insert-body
2473              (cdr (wl-string-match-assoc
2474                    "body"
2475                    wl-user-agent-headers-and-body-alist 'ignore-case)))))
2476     t))
2477
2478 (require 'product)
2479 (product-provide (provide 'wl-draft) (require 'wl-version))
2480
2481 ;;; wl-draft.el ends here