1 ;;; mmbuffer.el --- MIME entity module for binary buffer
3 ;; Copyright (C) 1998,1999 Free Software Foundation, Inc.
4 ;; Copyright (C) 1999 Electrotechnical Laboratory, JAPAN.
5 ;; Licensed to the Free Software Foundation.
7 ;; Author: MORIOKA Tomohiko <tomo@m17n.org>
8 ;; Keywords: MIME, multimedia, mail, news
10 ;; This file is part of FLIM (Faithful Library about Internet Message).
12 ;; This program is free software; you can redistribute it and/or
13 ;; modify it under the terms of the GNU General Public License as
14 ;; published by the Free Software Foundation; either version 2, or (at
15 ;; your option) any later version.
17 ;; This program is distributed in the hope that it will be useful, but
18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 ;; General Public License for more details.
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.
32 (luna-define-class mime-buffer-entity (mime-entity)
39 (luna-define-internal-accessors 'mime-buffer-entity)
42 (luna-define-method initialize-instance :after ((entity mime-buffer-entity)
44 (or (mime-buffer-entity-buffer-internal entity)
45 (mime-buffer-entity-set-buffer-internal
46 entity (mime-entity-location-internal entity)))
48 (set-buffer (mime-buffer-entity-buffer-internal entity))
49 (if (mime-root-entity-p entity)
50 (setq mime-message-structure entity))
52 (or (mime-buffer-entity-header-start-internal entity)
53 (mime-buffer-entity-set-header-start-internal
55 (header-end (mime-buffer-entity-header-end-internal entity))
56 (body-start (mime-buffer-entity-body-start-internal entity))
58 (or (mime-buffer-entity-body-end-internal entity)
59 (mime-buffer-entity-set-body-end-internal entity (point-max)))))
60 (goto-char header-start)
61 (unless (and header-end body-start)
62 (if (re-search-forward "^$" body-end t)
63 (setq header-end (match-end 0)
64 body-start (if (= header-end body-end)
67 (setq header-end (point-min)
68 body-start (point-min)))
69 (mime-buffer-entity-set-header-end-internal entity header-end)
70 (mime-buffer-entity-set-body-start-internal entity body-start)
72 (or (mime-entity-content-type-internal entity)
74 (narrow-to-region header-start header-end)
75 (mime-entity-set-content-type-internal
77 (let ((str (std11-fetch-field "Content-Type")))
79 (mime-parse-Content-Type str)
85 (luna-define-method mime-entity-name ((entity mime-buffer-entity))
86 (buffer-name (mime-buffer-entity-buffer-internal entity))
90 (luna-define-method mime-entity-children ((entity mime-buffer-entity))
91 (let* ((content-type (mime-entity-content-type entity))
92 (primary-type (mime-content-type-primary-type content-type)))
93 (cond ((eq primary-type 'multipart)
94 (mime-parse-multipart entity)
96 ((and (eq primary-type 'message)
97 (memq (mime-content-type-subtype content-type)
98 '(rfc822 news external-body)
100 (mime-parse-encapsulated entity)
105 (defun mime-visible-field-p (field-name visible-fields invisible-fields)
107 (while visible-fields
108 (let ((regexp (car visible-fields)))
109 (if (string-match regexp field-name)
112 (setq visible-fields (cdr visible-fields))
115 (while invisible-fields
116 (let ((regexp (car invisible-fields)))
117 (if (string-match regexp field-name)
120 (setq invisible-fields (cdr invisible-fields))
124 (defun mime-insert-header-from-buffer (buffer start end
125 &optional invisible-fields
127 (let ((the-buf (current-buffer))
128 (mode-obj (mime-find-field-presentation-method 'wide))
130 f-b p f-e field-name len field field-body)
134 (narrow-to-region start end)
136 (while (re-search-forward std11-field-head-regexp nil t)
137 (setq f-b (match-beginning 0)
139 field-name (buffer-substring f-b p)
140 len (string-width field-name)
141 f-e (std11-field-end))
142 (when (mime-visible-field-p field-name
143 visible-fields invisible-fields)
145 (capitalize (buffer-substring f-b (1- p))))
146 field-body (buffer-substring p f-e)
147 field-decoder (inline (mime-find-field-decoder-internal
149 (with-current-buffer the-buf
151 (insert (if field-decoder
152 (funcall field-decoder field-body len)
158 (luna-define-method mime-insert-header ((entity mime-buffer-entity)
159 &optional invisible-fields
161 (mime-insert-header-from-buffer
162 (mime-buffer-entity-buffer-internal entity)
163 (mime-buffer-entity-header-start-internal entity)
164 (mime-buffer-entity-header-end-internal entity)
165 invisible-fields visible-fields)
168 (luna-define-method mime-entity-content ((entity mime-buffer-entity))
170 (set-buffer (mime-buffer-entity-buffer-internal entity))
172 (buffer-substring (mime-buffer-entity-body-start-internal entity)
173 (mime-buffer-entity-body-end-internal entity))
174 (mime-entity-encoding entity))))
176 (luna-define-method mime-insert-text-content ((entity mime-buffer-entity))
178 (decode-mime-charset-string (mime-entity-content entity)
179 (or (mime-content-type-parameter
180 (mime-entity-content-type entity)
182 default-mime-charset)
186 ;;; redefine to speed up
188 (mm-define-method entity-point-min ((entity buffer))
189 (mime-buffer-entity-header-start-internal entity))
191 (mm-define-method entity-point-max ((entity buffer))
192 (mime-buffer-entity-body-end-internal entity))
194 (luna-define-method mime-entity-fetch-field :around
195 ((entity mime-buffer-entity) field-name)
196 (or (luna-call-next-method)
198 (set-buffer (mime-buffer-entity-buffer-internal entity))
200 (narrow-to-region (mime-buffer-entity-header-start-internal entity)
201 (mime-buffer-entity-header-end-internal entity))
202 (let ((ret (std11-fetch-field field-name)))
204 (or (symbolp field-name)
206 (intern (capitalize (capitalize field-name)))))
207 (mime-entity-set-original-header-internal
209 (put-alist field-name ret
210 (mime-entity-original-header-internal entity)))
213 (mm-define-method insert-entity-content ((entity buffer))
214 (insert (with-current-buffer (mime-buffer-entity-buffer-internal entity)
216 (buffer-substring (mime-buffer-entity-body-start-internal entity)
217 (mime-buffer-entity-body-end-internal entity))
218 (mime-entity-encoding entity)))))
220 (mm-define-method write-entity-content ((entity buffer) filename)
222 (set-buffer (mime-buffer-entity-buffer-internal entity))
223 (mime-write-decoded-region (mime-buffer-entity-body-start-internal entity)
224 (mime-buffer-entity-body-end-internal entity)
226 (or (mime-entity-encoding entity) "7bit"))
229 (mm-define-method insert-entity ((entity buffer))
230 (insert-buffer-substring (mime-buffer-entity-buffer-internal entity)
231 (mime-buffer-entity-header-start-internal entity)
232 (mime-buffer-entity-body-end-internal entity))
235 (mm-define-method write-entity ((entity buffer) filename)
237 (set-buffer (mime-buffer-entity-buffer-internal entity))
238 (write-region-as-raw-text-CRLF
239 (mime-buffer-entity-header-start-internal entity)
240 (mime-buffer-entity-body-end-internal entity)
244 (mm-define-method write-entity-body ((entity buffer) filename)
246 (set-buffer (mime-buffer-entity-buffer-internal entity))
247 (write-region-as-binary (mime-buffer-entity-body-start-internal entity)
248 (mime-buffer-entity-body-end-internal entity)
256 (luna-define-method mime-entity-header-buffer ((entity mime-buffer-entity))
257 (mime-buffer-entity-buffer-internal entity)
260 (luna-define-method mime-entity-body-buffer ((entity mime-buffer-entity))
261 (mime-buffer-entity-buffer-internal entity)
264 (luna-define-method mime-entity-buffer ((entity mime-buffer-entity))
265 (mime-buffer-entity-buffer-internal entity)
268 (luna-define-method mime-entity-body-start-point ((entity mime-buffer-entity))
269 (mime-buffer-entity-body-start-internal entity)
272 (luna-define-method mime-entity-body-end-point ((entity mime-buffer-entity))
273 (mime-buffer-entity-body-end-internal entity)
276 (luna-define-method mime-entity-point-min ((entity mime-buffer-entity))
277 (mime-buffer-entity-header-start-internal entity)
280 (luna-define-method mime-entity-point-max ((entity mime-buffer-entity))
281 (mime-buffer-entity-body-end-internal entity)
284 (luna-define-method mime-goto-header-start-point ((entity mime-buffer-entity))
285 (set-buffer (mime-buffer-entity-buffer-internal entity))
286 (goto-char (mime-buffer-entity-header-start-internal entity))
289 (luna-define-method mime-goto-body-start-point ((entity mime-buffer-entity))
290 (set-buffer (mime-buffer-entity-buffer-internal entity))
291 (goto-char (mime-buffer-entity-body-start-internal entity))
294 (luna-define-method mime-goto-body-end-point ((entity mime-buffer-entity))
295 (set-buffer (mime-buffer-entity-buffer-internal entity))
296 (goto-char (mime-buffer-entity-body-end-internal entity))
305 ;;; mmbuffer.el ends here