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.
38 (defalias-maybe 'Meadow-version 'ignore))
40 (defvar xemacs-betaname)
41 (defvar xemacs-codename)
42 (defvar enable-multibyte-characters)
47 (defalias 'wl-draft-editor-mode 'mime-edit-mode)
49 (defalias 'wl-draft-decode-message-in-buffer
50 'mime-edit-decode-message-in-buffer)
52 (defun wl-draft-yank-current-message-entity ()
53 "Yank currently displayed message entity.
54 By setting following-method as yank-content."
55 (let ((wl-draft-buffer (current-buffer))
56 (mime-view-following-method-alist
57 (list (cons 'wl-original-message-mode
58 (function wl-draft-yank-to-draft-buffer))))
59 (mime-preview-following-method-alist
60 (list (cons 'wl-original-message-mode
61 (function wl-draft-yank-to-draft-buffer)))))
62 (if (get-buffer (wl-current-message-buffer))
65 (set-buffer (wl-current-message-buffer))
67 (mime-preview-follow-current-entity))))))
69 (defalias 'wl-draft-enclose-digest-region 'mime-edit-enclose-digest-region)
71 (defun wl-draft-preview-message ()
72 "Preview editing message."
74 (let* (recipients-message
75 (current-point (point))
76 (config-exec-flag wl-draft-config-exec-flag)
77 (parent-folder wl-draft-parent-folder)
78 (mime-display-header-hook 'wl-highlight-headers)
79 (mime-header-encode-method-alist
81 '((wl-draft-eword-encode-address-list
82 . (To Cc Bcc Resent-To Resent-Cc Bcc Resent-Bcc)))
83 (if (boundp 'mime-header-encode-method-alist)
84 (symbol-value 'mime-header-encode-method-alist))))
85 mime-view-ignored-field-list ; all header.
86 (mime-edit-translate-buffer-hook
91 (let ((wl-draft-config-exec-flag config-exec-flag)
92 (wl-draft-parent-folder parent-folder))
93 (goto-char current-point)
94 (run-hooks 'wl-draft-send-hook)
95 (setq recipients-message
97 (concat "Recipients: "
100 (wl-draft-deduce-address-list
104 (goto-char (point-min))
108 (regexp-quote mail-header-separator)
114 (kill-buffer (current-buffer))
115 (signal (car err) (cdr err)))))))))
116 mime-edit-translate-buffer-hook)))
117 (mime-edit-preview-message)
118 (let ((buffer-read-only nil))
119 (when wl-highlight-body-too
121 (run-hooks 'wl-draft-preview-message-hook))
122 (message recipients-message)))
124 (defalias 'wl-draft-caesar-region 'mule-caesar-region)
126 (defalias 'wl-draft-insert-message 'mime-edit-insert-message)
128 (defalias 'wl-draft-insert-mail 'mime-edit-insert-mail)
132 (defun wl-message-decode-mode (outbuf inbuf)
133 (let ((mime-view-content-header-filter-hook 'wl-highlight-headers)
134 (mime-display-header-hook 'wl-highlight-headers))
135 (mime-view-mode nil nil nil inbuf outbuf)))
137 (defun wl-message-decode-with-all-header (outbuf inbuf)
138 (let ((mime-view-ignored-field-regexp "^:$")
139 (mime-view-content-header-filter-hook 'wl-highlight-headers)
140 (mime-display-header-hook 'wl-highlight-headers)
141 mime-view-ignored-field-list)
142 (mime-view-mode nil nil nil inbuf outbuf)))
144 (defun wl-message-delete-mime-out-buf ()
145 (let (mime-out-buf mime-out-win)
146 (if (setq mime-out-buf (get-buffer mime-echo-buffer-name))
147 (if (setq mime-out-win (get-buffer-window mime-out-buf))
148 (delete-window mime-out-win)))))
150 (defun wl-message-request-partial (folder number)
152 (elmo-message-fetch (wl-folder-get-elmo-folder folder)
154 (elmo-make-fetch-strategy 'entire)
158 (mime-parse-buffer nil)))
160 (defalias 'wl-message-read 'mime-preview-scroll-up-entity)
161 (defalias 'wl-message-next-content 'mime-preview-move-to-next)
162 (defalias 'wl-message-prev-content 'mime-preview-move-to-previous)
163 (defalias 'wl-message-play-content 'mime-preview-play-current-entity)
164 (defalias 'wl-message-extract-content 'mime-preview-extract-current-entity)
165 (defalias 'wl-message-quit 'mime-preview-quit)
166 (defalias 'wl-message-button-dispatcher-internal
167 'mime-button-dispatcher)
169 (defsubst wl-mime-node-id-to-string (node-id)
171 (mapconcat (function (lambda (num) (format "%s" (1+ num))))
176 (defun wl-message-delete-current-part ()
177 "Delete a part under the cursor from the multipart message."
179 (let* ((entity (get-text-property (point) 'mime-view-entity))
180 (node-id (mime-entity-node-id entity))
181 (header-start (mime-buffer-entity-header-start-internal entity))
182 (body-end (mime-buffer-entity-body-end-internal entity))
183 (folder (wl-folder-get-elmo-folder wl-message-buffer-cur-folder))
184 (number wl-message-buffer-cur-number)
185 (msgid (elmo-message-field folder number 'message-id))
186 (orig-buf wl-message-buffer-original-buffer))
187 (when (and (elmo-folder-writable-p folder)
188 (buffer-live-p orig-buf)
191 (format "Do you really want to delete part %s? "
192 (wl-mime-node-id-to-string node-id))))
194 (insert-buffer orig-buf)
195 (kill-region header-start body-end)
196 (goto-char header-start)
197 (insert "Content-Type: text/plain; charset=US-ASCII\n\n")
198 (insert "** This part has been removed by Wanderlust **\n\n")
199 (elmo-folder-append-buffer folder t))
201 (elmo-folder-append-messages
202 (wl-folder-get-elmo-folder wl-trash-folder)
203 folder (list number) nil)
204 (elmo-folder-delete-messages folder (list number))
206 (when (file-exists-p (elmo-cache-get-path msgid))
207 (delete-file (elmo-cache-get-path msgid)))
210 (wl-summary-toggle-disp-msg 'off)
211 (wl-summary-sync nil "update"))))
214 (defun wl-summary-burst-subr (message-entity target number)
215 ;; returns new number.
216 (let (content-type entity)
217 (setq content-type (mime-entity-content-type message-entity))
218 (cond ((eq (cdr (assq 'type content-type)) 'multipart)
219 (dolist (entity (mime-entity-children message-entity))
220 (setq number (wl-summary-burst-subr
224 ((and (eq (cdr (assq 'type content-type)) 'message)
225 (eq (cdr (assq 'subtype content-type)) 'rfc822))
226 (message "Bursting...%s" (setq number (+ 1 number)))
228 (car (mime-entity-children message-entity)))
230 (insert (mime-entity-body message-entity))
231 (elmo-folder-append-buffer
233 (mime-entity-fetch-field entity "Message-ID")))))
236 (defun wl-summary-burst (&optional arg)
237 "De-capsulate embedded messages in MIME format.
238 With ARG, ask destination folder."
240 (let ((raw-buf (wl-summary-get-original-buffer))
241 (view-buf wl-message-buffer)
242 children message-entity content-type target)
244 (setq target wl-summary-buffer-elmo-folder)
245 (when (or arg (not (elmo-folder-writable-p target)))
246 (let ((fld (wl-summary-read-folder wl-default-folder "to extract to")))
247 (setq target (wl-folder-get-elmo-folder fld))))
248 (wl-summary-set-message-buffer-or-redisplay)
249 (with-current-buffer view-buf
250 (setq message-entity (get-text-property (point-min) 'mime-view-entity)))
252 (message "Bursting...")
253 (with-current-buffer raw-buf
254 (wl-summary-burst-subr message-entity target 0))
255 (message "Bursting...done"))
256 (if (elmo-folder-plugged-p target)
257 (elmo-folder-check target)))
258 (wl-summary-sync-update)))
260 ;; internal variable.
261 (defvar wl-mime-save-directory nil "Last saved directory.")
262 ;;; Yet another save method.
263 (defun wl-mime-save-content (entity situation)
264 (let ((filename (read-file-name "Save to file: "
266 (or (mime-entity-safe-filename entity)
268 (or wl-mime-save-directory
269 wl-temporary-file-directory)))))
270 (while (file-directory-p filename)
271 (setq filename (read-file-name "Please set filename (not directory): "
273 (if (and (file-exists-p filename)
274 (not (yes-or-no-p (format "File %s exists. Save anyway? "
276 (message "Not saved")
277 (setq wl-mime-save-directory (file-name-directory filename))
278 (mime-write-entity-content entity filename))))
280 ;;; Yet another combine method.
281 (defun wl-mime-combine-message/partial-pieces (entity situation)
282 "Internal method for wl to combine message/partial messages automatically."
284 (let* ((msgdb (save-excursion
285 (set-buffer wl-message-buffer-cur-summary-buffer)
286 (wl-summary-buffer-msgdb)))
287 (mime-display-header-hook 'wl-highlight-headers)
288 (folder wl-message-buffer-cur-folder)
289 (id (or (cdr (assoc "id" situation)) ""))
290 (mother (current-buffer))
291 (summary-buf wl-message-buffer-cur-summary-buffer)
293 (root-dir (expand-file-name
294 (concat "m-prts-" (user-login-name))
295 temporary-file-directory))
297 (setq root-dir (concat root-dir "/" (replace-as-filename id)))
298 (setq full-file (concat root-dir "/FULL"))
299 (if (or (file-exists-p full-file)
300 (not (y-or-n-p "Merge partials? ")))
301 (with-current-buffer mother
302 (mime-store-message/partial-piece entity situation)
303 (setq wl-message-buffer-cur-summary-buffer summary-buf)
304 (make-variable-buffer-local 'mime-preview-over-to-next-method-alist)
305 (setq mime-preview-over-to-next-method-alist
306 (cons (cons 'mime-show-message-mode 'wl-message-exit)
307 mime-preview-over-to-next-method-alist))
308 (make-variable-buffer-local 'mime-preview-over-to-previous-method-alist)
309 (setq mime-preview-over-to-previous-method-alist
310 (cons (cons 'mime-show-message-mode 'wl-message-exit)
311 mime-preview-over-to-previous-method-alist)))
314 (decode-mime-charset-string
315 (mime-entity-read-field entity 'Subject)
316 wl-summary-buffer-mime-charset)))
317 (if (string-match "[0-9\n]+" subject-id)
318 (setq subject-id (substring subject-id 0 (match-beginning 0))))
319 (setq overviews (elmo-msgdb-get-overview msgdb))
323 (regexp-quote subject-id)
324 (elmo-msgdb-overview-entity-get-subject (car overviews)))
326 ;; request message at the cursor in Subject buffer.
327 (wl-message-request-partial
329 (elmo-msgdb-overview-entity-get-number
331 (situation (mime-entity-situation message))
332 (the-id (or (cdr (assoc "id" situation)) "")))
333 (when (string= (downcase the-id)
335 (with-current-buffer mother
336 (mime-store-message/partial-piece message situation))
337 (if (file-exists-p full-file)
339 (setq overviews (cdr overviews)))
340 (message "Not all partials found.")))))
342 (defun wl-mime-display-text/plain (entity situation)
344 (mime-display-text/plain entity situation)
345 (wl-highlight-message beg (point-max) t t)))
347 (defun wl-mime-display-header (entity situation)
348 (let ((elmo-message-ignored-field-list
349 (if wl-message-buffer-all-header-flag
351 wl-message-ignored-field-list))
352 (elmo-message-visible-field-list wl-message-visible-field-list)
353 (elmo-message-sorted-field-list wl-message-sort-field-list))
354 (elmo-mime-insert-header entity situation)
355 (wl-highlight-headers)))
357 (defun wl-mime-decrypt-application/pgp-encrypted (entity situation)
358 (let ((summary-buffer wl-message-buffer-cur-summary-buffer)
359 (original-buffer wl-message-buffer-original-buffer))
360 (mime-decrypt-application/pgp-encrypted entity situation)
361 (setq wl-message-buffer-cur-summary-buffer summary-buffer)
362 (setq wl-message-buffer-original-buffer original-buffer)))
366 (defun wl-mime-setup ()
367 (set-alist 'mime-preview-quitting-method-alist
368 'wl-original-message-mode 'wl-message-exit)
369 (set-alist 'mime-view-over-to-previous-method-alist
370 'wl-original-message-mode 'wl-message-exit)
371 (set-alist 'mime-view-over-to-next-method-alist
372 'wl-original-message-mode 'wl-message-exit)
373 (set-alist 'mime-preview-over-to-previous-method-alist
374 'wl-original-message-mode 'wl-message-exit)
375 (set-alist 'mime-preview-over-to-next-method-alist
376 'wl-original-message-mode 'wl-message-exit)
377 (add-hook 'wl-summary-redisplay-hook 'wl-message-delete-mime-out-buf)
378 (add-hook 'wl-message-exit-hook 'wl-message-delete-mime-out-buf)
380 (ctree-set-calist-strictly
381 'mime-preview-condition
382 '((type . text) (subtype . plain)
384 (body-presentation-method . wl-mime-display-text/plain)
385 (major-mode . wl-original-message-mode)))
387 (ctree-set-calist-strictly
388 'mime-acting-condition
389 '((type . message) (subtype . partial)
390 (method . wl-mime-combine-message/partial-pieces)
391 (request-partial-message-method . wl-message-request-partial)
392 (major-mode . wl-original-message-mode)))
394 (ctree-set-calist-strictly
395 'mime-acting-condition
396 '((type . application) (subtype . pgp-encrypted)
397 (method . wl-mime-decrypt-application/pgp-encrypted)
398 (major-mode . wl-original-message-mode)))
400 (ctree-set-calist-strictly
401 'mime-acting-condition
403 (major-mode . wl-original-message-mode)
404 (method . wl-mime-save-content)))
405 (set-alist 'mime-preview-following-method-alist
406 'wl-original-message-mode
407 (function wl-message-follow-current-entity))
408 (set-alist 'mime-view-following-method-alist
409 'wl-original-message-mode
410 (function wl-message-follow-current-entity))
411 (set-alist 'mime-edit-message-inserter-alist
412 'wl-draft-mode (function wl-draft-insert-current-message))
413 (set-alist 'mime-edit-mail-inserter-alist
414 'wl-draft-mode (function wl-draft-insert-get-message))
415 (set-alist 'mime-edit-split-message-sender-alist
417 (cdr (assq 'mail-mode mime-edit-split-message-sender-alist)))
418 (set-alist 'mime-raw-representation-type-alist
419 'wl-original-message-mode 'binary)
420 ;; Sort and highlight header fields.
421 (or wl-message-ignored-field-list
422 (setq wl-message-ignored-field-list
423 mime-view-ignored-field-list))
424 (or wl-message-visible-field-list
425 (setq wl-message-visible-field-list
426 mime-view-visible-field-list))
427 (set-alist 'mime-header-presentation-method-alist
428 'wl-original-message-mode
429 'wl-mime-display-header)
430 ;; To avoid overriding wl-draft-mode-map.
431 (when (boundp 'mime-setup-signature-key-alist)
432 (unless (assq 'wl-draft-mode mime-setup-signature-key-alist)
433 (setq mime-setup-signature-key-alist
434 (cons '(wl-draft-mode . "\C-c\C-w")
435 mime-setup-signature-key-alist)))))
438 (product-provide (provide 'wl-mime) (require 'wl-version))
440 ;;; wl-mime.el ends here