1 ;;; wl-mime.el --- SEMI implementations of MIME processing on Wanderlust.
3 ;; Copyright (C) 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
6 ;; Keywords: mail, net news
8 ;; This file is part of Wanderlust (Yet Another Message Interface on Emacsen).
10 ;; This program is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; This program is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
39 (defalias 'wl-draft-editor-mode 'mime-edit-mode)
41 (defalias 'wl-draft-decode-message-in-buffer
42 'mime-edit-decode-message-in-buffer)
44 (defun wl-draft-yank-current-message-entity ()
45 "Yank currently displayed message entity.
46 By setting following-method as yank-content.
48 If region is active, yank region contents instead. \(this feature is available
49 if and only if `transient-mark-mode' \(GNU Emacs\) or `zmacs-regions' \(XEmacs\)
51 (let ((wl-draft-buffer (current-buffer))
52 (mime-view-following-method-alist
53 (list (cons 'wl-original-message-mode
54 (function wl-draft-yank-to-draft-buffer))))
55 (mime-preview-following-method-alist
56 (list (cons 'wl-original-message-mode
57 (function wl-draft-yank-to-draft-buffer)))))
58 (if (get-buffer (wl-current-message-buffer))
60 (set-buffer (wl-current-message-buffer))
63 (if (wl-region-exists-p)
64 (wl-mime-preview-follow-current-region)
65 (mime-preview-follow-current-entity)))))))
67 ;; modified mime-preview-follow-current-entity from mime-view.el
68 (defun wl-mime-preview-follow-current-region ()
69 "Write follow message to current region.
70 It calls following-method selected from variable
71 `mime-preview-following-method-alist'."
73 (let ((r-beg (region-beginning))
75 (entity (get-text-property (point-min)
77 (let* ((mode (mime-preview-original-major-mode 'recursive))
79 (format "%s-active-region" (buffer-name)))
81 (the-buf (current-buffer))
84 (set-buffer (setq new-buf (get-buffer-create new-name)))
87 (insert-buffer-substring the-buf r-beg r-end)
88 (goto-char (point-min))
90 (if (and (eq (mime-entity-media-type entity) 'message)
91 (eq (mime-entity-media-subtype entity) 'rfc822))
92 (car (mime-entity-children entity))
94 (while (and current-entity
95 (if (and (eq (mime-entity-media-type
96 current-entity) 'message)
97 (eq (mime-entity-media-subtype
98 current-entity) 'rfc822))
100 (mime-insert-header current-entity fields)
102 (setq fields (std11-collect-field-names)
103 current-entity (mime-entity-parent current-entity))
105 (let ((rest mime-view-following-required-fields-list)
108 (setq field-name (car rest))
109 (or (std11-field-body field-name)
113 (let ((entity (when mime-mother-buffer
114 (set-buffer mime-mother-buffer)
115 (get-text-property (point)
116 'mime-view-entity))))
118 (null (setq ret (mime-entity-fetch-field
119 entity field-name))))
120 (setq entity (mime-entity-parent entity)))))
122 (insert (concat field-name ": " ret "\n"))
124 (setq rest (cdr rest))
127 (let ((f (cdr (assq mode mime-preview-following-method-alist))))
132 "Sorry, following method for %s is not implemented yet."
137 (defalias 'wl-draft-enclose-digest-region 'mime-edit-enclose-digest-region)
139 (defun wl-draft-preview-message ()
140 "Preview editing message."
142 (let* (recipients-message
143 (current-point (point))
144 (config-exec-flag wl-draft-config-exec-flag)
145 (parent-folder wl-draft-parent-folder)
146 (mime-display-header-hook 'wl-highlight-headers)
147 (mime-header-encode-method-alist
149 '((wl-draft-eword-encode-address-list
150 . (To Cc Bcc Resent-To Resent-Cc Bcc Resent-Bcc)))
151 (if (boundp 'mime-header-encode-method-alist)
152 (symbol-value 'mime-header-encode-method-alist))))
153 mime-view-ignored-field-list ; all header.
154 (mime-edit-translate-buffer-hook
159 (let ((wl-draft-config-exec-flag config-exec-flag)
160 (wl-draft-parent-folder parent-folder))
161 (goto-char current-point)
162 (run-hooks 'wl-draft-send-hook)
163 (setq recipients-message
165 (concat "Recipients: "
168 (wl-draft-deduce-address-list
172 (goto-char (point-min))
176 (regexp-quote mail-header-separator)
182 (kill-buffer (current-buffer))
183 (signal (car err) (cdr err)))))))))
184 mime-edit-translate-buffer-hook)))
185 (mime-edit-preview-message)
186 (let ((buffer-read-only nil))
187 (when wl-highlight-body-too
189 (run-hooks 'wl-draft-preview-message-hook))
190 (message recipients-message)))
192 (defalias 'wl-draft-caesar-region 'mule-caesar-region)
194 (defalias 'wl-draft-insert-message 'mime-edit-insert-message)
196 (defalias 'wl-draft-insert-mail 'mime-edit-insert-mail)
200 (defun wl-message-decode-mode (outbuf inbuf)
201 (let ((mime-view-content-header-filter-hook 'wl-highlight-headers)
202 (mime-display-header-hook 'wl-highlight-headers))
203 (mime-view-mode nil nil nil inbuf outbuf)))
205 (defun wl-message-decode-with-all-header (outbuf inbuf)
206 (let ((mime-view-ignored-field-regexp "^:$")
207 (mime-view-content-header-filter-hook 'wl-highlight-headers)
208 (mime-display-header-hook 'wl-highlight-headers)
209 mime-view-ignored-field-list)
210 (mime-view-mode nil nil nil inbuf outbuf)))
212 (defun wl-message-delete-mime-out-buf ()
213 (let (mime-out-buf mime-out-win)
214 (if (setq mime-out-buf (get-buffer mime-echo-buffer-name))
215 (if (setq mime-out-win (get-buffer-window mime-out-buf))
216 (delete-window mime-out-win)))))
218 (defun wl-message-request-partial (folder number)
220 (elmo-message-fetch (wl-folder-get-elmo-folder folder)
222 (elmo-make-fetch-strategy 'entire)
226 (mime-parse-buffer nil)))
228 (defalias 'wl-message-read 'mime-preview-scroll-up-entity)
229 (defalias 'wl-message-next-content 'mime-preview-move-to-next)
230 (defalias 'wl-message-prev-content 'mime-preview-move-to-previous)
231 (defalias 'wl-message-play-content 'mime-preview-play-current-entity)
232 (defalias 'wl-message-extract-content 'mime-preview-extract-current-entity)
233 (defalias 'wl-message-quit 'mime-preview-quit)
234 (defalias 'wl-message-button-dispatcher-internal
235 'mime-button-dispatcher)
237 (defsubst wl-mime-node-id-to-string (node-id)
239 (mapconcat (function (lambda (num) (format "%s" (1+ num))))
244 (defun wl-message-delete-current-part ()
245 "Delete a part under the cursor from the multipart message."
249 (let* ((entity (get-text-property (point) 'mime-view-entity))
250 (node-id (mime-entity-node-id entity))
251 (header-start (mime-buffer-entity-header-start-internal entity))
252 (body-end (mime-buffer-entity-body-end-internal entity))
253 (folder (wl-folder-get-elmo-folder wl-message-buffer-cur-folder))
254 (number wl-message-buffer-cur-number)
255 (msgid (elmo-message-field folder number 'message-id))
256 (orig-buf wl-message-buffer-original-buffer))
257 (if (eq (luna-class-name entity) 'mime-elmo-imap-entity)
258 (error "Please fetch the entire message (by typing 'C-u .') and try again"))
259 (with-current-buffer orig-buf
260 (unless (string-equal
262 (elmo-message-fetch folder number
263 (elmo-make-fetch-strategy 'entire)))
264 (error "Buffer content differs from actual message")))
265 (when (and (elmo-folder-writable-p folder)
266 (buffer-live-p orig-buf)
269 (format "Do you really want to delete part %s? "
270 (wl-mime-node-id-to-string node-id))))
272 (insert-buffer orig-buf)
273 (delete-region header-start body-end)
274 (goto-char header-start)
275 (insert "Content-Type: text/plain; charset=US-ASCII\n\n")
276 (insert "** This part has been removed by Wanderlust **\n\n")
277 (elmo-folder-append-buffer folder t))
279 (elmo-folder-append-messages
280 (wl-folder-get-elmo-folder wl-trash-folder)
281 folder (list number) nil)
282 (elmo-folder-delete-messages folder (list number))
284 (when (file-exists-p (elmo-cache-get-path msgid))
285 (delete-file (elmo-cache-get-path msgid)))
288 (wl-summary-toggle-disp-msg 'off)
289 (wl-summary-sync nil "update")))))
292 (defun wl-summary-burst-subr (message-entity target number)
293 ;; returns new number.
294 (let (content-type entity)
295 (setq content-type (mime-entity-content-type message-entity))
296 (cond ((eq (cdr (assq 'type content-type)) 'multipart)
297 (dolist (entity (mime-entity-children message-entity))
298 (setq number (wl-summary-burst-subr
302 ((and (eq (cdr (assq 'type content-type)) 'message)
303 (eq (cdr (assq 'subtype content-type)) 'rfc822))
304 (message "Bursting...%s" (setq number (+ 1 number)))
306 (car (mime-entity-children message-entity)))
308 (insert (mime-entity-body message-entity))
309 (elmo-folder-append-buffer
311 (mime-entity-fetch-field entity "Message-ID")))))
314 (defun wl-summary-burst (&optional arg)
315 "De-capsulate embedded messages in MIME format.
316 With ARG, ask destination folder."
318 (let ((raw-buf (wl-summary-get-original-buffer))
319 (view-buf wl-message-buffer)
320 children message-entity content-type target)
322 (setq target wl-summary-buffer-elmo-folder)
323 (when (or arg (not (elmo-folder-writable-p target)))
324 (let ((fld (wl-summary-read-folder wl-default-folder "to extract to")))
325 (setq target (wl-folder-get-elmo-folder fld))))
326 (wl-summary-set-message-buffer-or-redisplay)
327 (with-current-buffer view-buf
328 (setq message-entity (get-text-property (point-min) 'mime-view-entity)))
330 (message "Bursting...")
331 (with-current-buffer raw-buf
332 (wl-summary-burst-subr message-entity target 0))
333 (message "Bursting...done"))
334 (if (elmo-folder-plugged-p target)
335 (elmo-folder-check target)))
336 (wl-summary-sync-update)))
338 ;; internal variable.
339 (defvar wl-mime-save-directory nil "Last saved directory.")
340 ;;; Yet another save method.
341 (defun wl-mime-save-content (entity situation)
342 (let ((filename (read-file-name "Save to file: "
344 (or (mime-entity-safe-filename entity)
346 (or wl-mime-save-directory
347 wl-temporary-file-directory)))))
348 (while (file-directory-p filename)
349 (setq filename (read-file-name "Please set filename (not directory): "
351 (if (and (file-exists-p filename)
352 (not (yes-or-no-p (format "File %s exists. Save anyway? "
354 (message "Not saved")
355 (setq wl-mime-save-directory (file-name-directory filename))
356 (mime-write-entity-content entity filename))))
358 ;;; Yet another combine method.
359 (defun wl-mime-combine-message/partial-pieces (entity situation)
360 "Internal method for wl to combine message/partial messages automatically."
362 (let* ((msgdb (save-excursion
363 (set-buffer wl-message-buffer-cur-summary-buffer)
364 (wl-summary-buffer-msgdb)))
365 (mime-display-header-hook 'wl-highlight-headers)
366 (folder wl-message-buffer-cur-folder)
367 (id (or (cdr (assoc "id" situation)) ""))
368 (mother (current-buffer))
369 (summary-buf wl-message-buffer-cur-summary-buffer)
371 (root-dir (expand-file-name
372 (concat "m-prts-" (user-login-name))
373 temporary-file-directory))
375 (setq root-dir (concat root-dir "/" (replace-as-filename id)))
376 (setq full-file (concat root-dir "/FULL"))
377 (if (or (file-exists-p full-file)
378 (not (y-or-n-p "Merge partials? ")))
379 (with-current-buffer mother
380 (mime-store-message/partial-piece entity situation)
381 (setq wl-message-buffer-cur-summary-buffer summary-buf)
382 (make-variable-buffer-local 'mime-preview-over-to-next-method-alist)
383 (setq mime-preview-over-to-next-method-alist
384 (cons (cons 'mime-show-message-mode 'wl-message-exit)
385 mime-preview-over-to-next-method-alist))
386 (make-variable-buffer-local 'mime-preview-over-to-previous-method-alist)
387 (setq mime-preview-over-to-previous-method-alist
388 (cons (cons 'mime-show-message-mode 'wl-message-exit)
389 mime-preview-over-to-previous-method-alist)))
392 (decode-mime-charset-string
393 (mime-entity-read-field entity 'Subject)
394 wl-summary-buffer-mime-charset)))
395 (if (string-match "[0-9\n]+" subject-id)
396 (setq subject-id (substring subject-id 0 (match-beginning 0))))
397 (setq overviews (elmo-msgdb-get-overview msgdb))
401 (regexp-quote subject-id)
402 (elmo-msgdb-overview-entity-get-subject (car overviews)))
404 ;; request message at the cursor in Subject buffer.
405 (wl-message-request-partial
407 (elmo-msgdb-overview-entity-get-number
409 (situation (mime-entity-situation message))
410 (the-id (or (cdr (assoc "id" situation)) "")))
411 (when (string= (downcase the-id)
413 (with-current-buffer mother
414 (mime-store-message/partial-piece message situation))
415 (if (file-exists-p full-file)
417 (setq overviews (cdr overviews)))
418 (message "Not all partials found.")))))
420 (defun wl-mime-display-text/plain (entity situation)
422 (mime-display-text/plain entity situation)
423 (wl-highlight-message beg (point-max) t t)))
425 (defun wl-mime-display-header (entity situation)
426 (let ((elmo-message-ignored-field-list
427 (if wl-message-buffer-all-header-flag
429 wl-message-ignored-field-list))
430 (elmo-message-visible-field-list wl-message-visible-field-list)
431 (elmo-message-sorted-field-list wl-message-sort-field-list))
432 (elmo-mime-insert-header entity situation)
433 (wl-highlight-headers)))
435 (defun wl-mime-decrypt-application/pgp-encrypted (entity situation)
436 (let ((summary-buffer wl-message-buffer-cur-summary-buffer)
437 (original-buffer wl-message-buffer-original-buffer))
438 (mime-decrypt-application/pgp-encrypted entity situation)
439 (setq wl-message-buffer-cur-summary-buffer summary-buffer)
440 (setq wl-message-buffer-original-buffer original-buffer)))
444 (defun wl-mime-setup ()
445 (set-alist 'mime-preview-quitting-method-alist
446 'wl-original-message-mode 'wl-message-exit)
447 (set-alist 'mime-view-over-to-previous-method-alist
448 'wl-original-message-mode 'wl-message-exit)
449 (set-alist 'mime-view-over-to-next-method-alist
450 'wl-original-message-mode 'wl-message-exit)
451 (set-alist 'mime-preview-over-to-previous-method-alist
452 'wl-original-message-mode 'wl-message-exit)
453 (set-alist 'mime-preview-over-to-next-method-alist
454 'wl-original-message-mode 'wl-message-exit)
455 (add-hook 'wl-summary-redisplay-hook 'wl-message-delete-mime-out-buf)
456 (add-hook 'wl-message-exit-hook 'wl-message-delete-mime-out-buf)
458 (ctree-set-calist-strictly
459 'mime-preview-condition
460 '((type . text) (subtype . plain)
462 (body-presentation-method . wl-mime-display-text/plain)
463 (major-mode . wl-original-message-mode)))
465 (ctree-set-calist-strictly
466 'mime-acting-condition
467 '((type . message) (subtype . partial)
468 (method . wl-mime-combine-message/partial-pieces)
469 (request-partial-message-method . wl-message-request-partial)
470 (major-mode . wl-original-message-mode)))
472 (ctree-set-calist-strictly
473 'mime-acting-condition
474 '((type . application) (subtype . pgp-encrypted)
475 (method . wl-mime-decrypt-application/pgp-encrypted)
476 (major-mode . wl-original-message-mode)))
478 (ctree-set-calist-strictly
479 'mime-acting-condition
481 (major-mode . wl-original-message-mode)
482 (method . wl-mime-save-content)))
483 (set-alist 'mime-preview-following-method-alist
484 'wl-original-message-mode
485 (function wl-message-follow-current-entity))
486 (set-alist 'mime-view-following-method-alist
487 'wl-original-message-mode
488 (function wl-message-follow-current-entity))
489 (set-alist 'mime-edit-message-inserter-alist
490 'wl-draft-mode (function wl-draft-insert-current-message))
491 (set-alist 'mime-edit-mail-inserter-alist
492 'wl-draft-mode (function wl-draft-insert-get-message))
493 (set-alist 'mime-edit-split-message-sender-alist
495 (cdr (assq 'mail-mode mime-edit-split-message-sender-alist)))
496 (set-alist 'mime-raw-representation-type-alist
497 'wl-original-message-mode 'binary)
498 ;; Sort and highlight header fields.
499 (or wl-message-ignored-field-list
500 (setq wl-message-ignored-field-list
501 mime-view-ignored-field-list))
502 (or wl-message-visible-field-list
503 (setq wl-message-visible-field-list
504 mime-view-visible-field-list))
505 (set-alist 'mime-header-presentation-method-alist
506 'wl-original-message-mode
507 'wl-mime-display-header)
508 ;; To avoid overriding wl-draft-mode-map.
509 (when (boundp 'mime-setup-signature-key-alist)
510 (unless (assq 'wl-draft-mode mime-setup-signature-key-alist)
511 (setq mime-setup-signature-key-alist
512 (cons '(wl-draft-mode . "\C-c\C-w")
513 mime-setup-signature-key-alist)))))
516 (product-provide (provide 'wl-mime) (require 'wl-version))
518 ;;; wl-mime.el ends here