1 ;;; elmo-mime.el -- MIME module for ELMO.
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 ELMO (Elisp Library for Message Orchestration).
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.
37 (luna-define-class mime-elmo-buffer-entity (mime-buffer-entity) ())
38 (luna-define-class mime-elmo-imap-entity (mime-imap-entity) ()))
41 (provide 'mmelmo-imap)
42 (provide 'mmelmo-buffer)
44 (defvar elmo-message-ignored-field-list mime-view-ignored-field-list)
45 (defvar elmo-message-visible-field-list mime-view-visible-field-list)
46 (defvar elmo-message-sorted-field-list nil)
48 (defcustom elmo-mime-header-max-column fill-column
49 "*Header max column number. Default is `fill-colmn'.
50 If a symbol of function is specified, the function is called and its return
52 :type '(choice (integer :tag "Column Number")
53 (function :tag "Function"))
56 (defcustom elmo-mime-display-as-is-coding-system (if (boundp 'MULE)
57 '*autoconv* 'undecided)
58 "*Coding system used when message is displayed as is."
62 (luna-define-method initialize-instance :after ((entity mime-elmo-buffer-entity)
66 (luna-define-method initialize-instance :around ((entity mime-elmo-imap-entity)
68 (luna-call-next-method))
70 ;;; Insert sorted header.
71 (defsubst elmo-mime-insert-header-from-buffer (buffer
73 &optional invisible-fields
76 (let ((the-buf (current-buffer))
77 (mode-obj (mime-find-field-presentation-method 'wide))
79 f-b p f-e field-name field field-body
80 vf-alist (sl sort-fields))
84 (narrow-to-region start end)
86 (while (re-search-forward std11-field-head-regexp nil t)
87 (setq f-b (match-beginning 0)
89 field-name (buffer-substring f-b p)
90 f-e (std11-field-end))
91 (when (mime-visible-field-p field-name
92 visible-fields invisible-fields)
94 (capitalize (buffer-substring f-b (1- p))))
95 field-body (buffer-substring p f-e)
96 field-decoder (inline (mime-find-field-decoder-internal
98 (setq vf-alist (append (list
100 (list field-body field-decoder)))
105 (function (lambda (s d)
110 (while (setq re (nth n sl))
112 (and (string-match re sf)
114 (and (string-match re df)
117 (with-current-buffer the-buf
119 (let* ((vf (car vf-alist))
120 (field-name (car vf))
121 (field-body (car (cdr vf)))
122 (field-decoder (car (cdr (cdr vf)))))
124 (insert (if field-decoder
125 (funcall field-decoder field-body
126 (string-width field-name)
127 (if (functionp elmo-mime-header-max-column)
128 (funcall elmo-mime-header-max-column)
129 elmo-mime-header-max-column))
133 (setq vf-alist (cdr vf-alist)))
134 (run-hooks 'mmelmo-header-inserted-hook))))))
136 (luna-define-generic elmo-mime-insert-sorted-header (entity
137 &optional invisible-fields
140 "Insert sorted header fields of the ENTITY.")
142 (luna-define-method elmo-mime-insert-sorted-header ((entity
143 mime-elmo-buffer-entity)
144 &optional invisible-fields
147 (elmo-mime-insert-header-from-buffer
148 (mime-buffer-entity-buffer-internal entity)
149 (mime-buffer-entity-header-start-internal entity)
150 (mime-buffer-entity-header-end-internal entity)
151 invisible-fields visible-fields sorted-fields))
153 (luna-define-method elmo-mime-insert-sorted-header ((entity
154 mime-elmo-imap-entity)
155 &optional invisible-fields
158 (let ((the-buf (current-buffer))
161 (insert (mime-imap-entity-header-string entity))
162 (setq buf (current-buffer)
166 (elmo-mime-insert-header-from-buffer buf p-min p-max
171 (luna-define-method mime-insert-text-content :around
172 ((entity mime-elmo-buffer-entity))
173 (luna-call-next-method)
174 (run-hooks 'elmo-message-text-content-inserted-hook))
176 (luna-define-method mime-insert-text-content :around
177 ((entity mime-elmo-imap-entity))
178 (luna-call-next-method)
179 (run-hooks 'elmo-message-text-content-inserted-hook))
181 (defun elmo-mime-insert-header (entity situation)
182 (elmo-mime-insert-sorted-header
184 elmo-message-ignored-field-list
185 elmo-message-visible-field-list
186 elmo-message-sorted-field-list)
187 (run-hooks 'elmo-message-header-inserted-hook))
189 (defun elmo-make-mime-message-location (folder number strategy rawbuf unread)
190 ;; Return the MIME message location structure.
191 ;; FOLDER is the ELMO folder structure.
192 ;; NUMBER is the number of the message in the FOLDER.
193 ;; STRATEGY is the message fetching strategy.
194 ;; RAWBUF is the output buffer for original message.
195 ;; If second optional argument UNREAD is non-nil, message is not marked
198 (eq (elmo-fetch-strategy-entireness strategy) 'section))
200 'mime-elmo-imap-location
205 (with-current-buffer rawbuf
206 (let (buffer-read-only)
209 (elmo-message-fetch folder number strategy
214 (defun elmo-mime-message-display (folder number viewbuf rawbuf original-mode
215 &optional ignore-cache unread keymap)
216 "Display MIME message.
217 A message in the FOLDER with NUMBER is displayed on the VIEWBUF using RAWBUF.
218 VIEWBUF is a view buffer and RAWBUF is a raw buffer.
219 ORIGINAL is the major mode of RAWBUF.
220 If optional argument IGNORE-CACHE is specified, existing cache is ignored.
221 If second optional argument UNREAD is specified, message is displayed but
223 Return non-nil if not entire message was fetched."
224 (let (mime-display-header-hook ; Do nothing.
225 (elmo-message-displaying t)
227 (setq entity (elmo-msgdb-overview-get-entity number
230 (setq strategy (elmo-find-fetch-strategy folder entity
232 (mime-display-message
235 (eq (elmo-fetch-strategy-entireness strategy) 'section))
238 (elmo-make-mime-message-location
239 folder number strategy rawbuf unread))
243 (or (elmo-fetch-strategy-use-cache strategy)
244 (eq (elmo-fetch-strategy-entireness strategy)
247 (defun elmo-mime-display-as-is (folder number viewbuf rawbuf original-mode
248 &optional ignore-cache unread keymap)
249 "Display MIME message.
250 A message in the FOLDER with NUMBER is displayed on the VIEWBUF using RAWBUF.
251 VIEWBUF is a view buffer and RAWBUF is a raw buffer.
252 ORIGINAL is the major mode of RAWBUF.
253 If optional argument IGNORE-CACHE is specified, existing cache is ignored.
254 If second optional argument UNREAD is specified, message is displayed but
256 Return non-nil if cache is used."
257 (let ((entity (elmo-msgdb-overview-get-entity number
258 (elmo-folder-msgdb folder)))
259 mime-display-header-hook ; Do nothing.
260 cache-file strategy use-cache)
261 (setq cache-file (elmo-file-cache-get
262 (elmo-msgdb-overview-entity-get-id entity)))
263 (setq use-cache (eq (elmo-file-cache-status cache-file) 'entire))
264 (setq strategy (elmo-make-fetch-strategy
265 'entire use-cache (elmo-message-use-cache-p folder number)
266 (elmo-file-cache-path
268 (elmo-mime-display-as-is-internal
271 (elmo-make-mime-message-location
272 folder number strategy rawbuf unread))
273 viewbuf nil keymap original-mode)
274 (elmo-fetch-strategy-use-cache strategy)))
276 ;; Replacement of mime-display-message.
277 (defun elmo-mime-display-as-is-internal (message
278 &optional preview-buffer
279 mother default-keymap-or-function
280 original-major-mode keymap)
281 (mime-maybe-hide-echo-buffer)
282 (let ((win-conf (current-window-configuration)))
285 (concat "*Preview-" (mime-entity-name message) "*")))
286 (or original-major-mode
287 (setq original-major-mode major-mode))
288 (let ((inhibit-read-only t))
289 (set-buffer (get-buffer-create preview-buffer))
293 (setq mime-mother-buffer mother))
294 (setq mime-preview-original-window-configuration win-conf)
295 (setq major-mode 'mime-view-mode)
296 (setq mode-name "MIME-View")
299 (set-buffer-multibyte nil)
300 (mime-insert-entity message)
301 (set-buffer-multibyte t)
302 (decode-coding-region (point-min) (point-max)
303 elmo-mime-display-as-is-coding-system)
305 (std11-narrow-to-header)
306 (run-hooks 'elmo-message-header-inserted-hook))
307 ;; set original major mode for mime-preview-quit
308 (put-text-property (point-min) (point-max)
310 `((major-mode . ,original-major-mode)))
313 (if default-keymap-or-function
314 (mime-view-define-keymap default-keymap-or-function)
315 mime-view-mode-default-map)))
317 (next-single-property-change (point-min) 'mime-view-entity)))
320 (goto-char (point-min))
321 (search-forward "\n\n" nil t)))
322 (run-hooks 'mime-view-mode-hook)
323 (set-buffer-modified-p nil)
324 (setq buffer-read-only t)
328 (product-provide (provide 'elmo-mime) (require 'elmo-version))
330 ;; elmo-mime.el ends here