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715a2ca2 | 1 | ;;; mm-view.el --- functions for viewing MIME objects |
e84b4b86 | 2 | |
8abf1b22 | 3 | ;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
114f9c96 | 4 | ;; 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
c113de23 GM |
5 | |
6 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> | |
7 | ;; This file is part of GNU Emacs. | |
8 | ||
5e809f55 | 9 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
c113de23 | 10 | ;; it under the terms of the GNU General Public License as published by |
5e809f55 GM |
11 | ;; the Free Software Foundation, either version 3 of the License, or |
12 | ;; (at your option) any later version. | |
c113de23 GM |
13 | |
14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
5e809f55 | 16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
c113de23 GM |
17 | ;; GNU General Public License for more details. |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
5e809f55 | 20 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
c113de23 GM |
21 | |
22 | ;;; Commentary: | |
23 | ||
24 | ;;; Code: | |
49ad38a1 GM |
25 | (eval-and-compile |
26 | (unless (fboundp 'declare-function) (defmacro declare-function (&rest r)))) | |
c113de23 GM |
27 | (eval-when-compile (require 'cl)) |
28 | (require 'mail-parse) | |
29 | (require 'mailcap) | |
30 | (require 'mm-bodies) | |
31 | (require 'mm-decode) | |
01c52d31 | 32 | (require 'smime) |
c113de23 | 33 | |
229b59da | 34 | (autoload 'gnus-completing-read "gnus-util") |
a41c2e6d | 35 | (autoload 'gnus-window-inside-pixel-edges "gnus-ems") |
8abf1b22 GM |
36 | (autoload 'gnus-article-prepare-display "gnus-art") |
37 | (autoload 'vcard-parse-string "vcard") | |
38 | (autoload 'vcard-format-string "vcard") | |
39 | (autoload 'fill-flowed "flow-fill") | |
40 | (autoload 'html2text "html2text" nil t) | |
c113de23 | 41 | |
dd3eac76 JB |
42 | (defvar gnus-article-mime-handles) |
43 | (defvar gnus-newsgroup-charset) | |
44 | (defvar smime-keys) | |
45 | (defvar w3m-cid-retrieve-function-alist) | |
46 | (defvar w3m-current-buffer) | |
47 | (defvar w3m-display-inline-images) | |
48 | (defvar w3m-minor-mode-map) | |
49 | ||
23f87bed MB |
50 | (defvar mm-text-html-renderer-alist |
51 | '((w3 . mm-inline-text-html-render-with-w3) | |
52 | (w3m . mm-inline-text-html-render-with-w3m) | |
73043f7d | 53 | (w3m-standalone . mm-inline-text-html-render-with-w3m-standalone) |
23f87bed MB |
54 | (links mm-inline-render-with-file |
55 | mm-links-remove-leading-blank | |
56 | "links" "-dump" file) | |
57 | (lynx mm-inline-render-with-stdin nil | |
58 | "lynx" "-dump" "-force_html" "-stdin" "-nolist") | |
59 | (html2text mm-inline-render-with-function html2text)) | |
60 | "The attributes of renderer types for text/html.") | |
61 | ||
62 | (defvar mm-text-html-washer-alist | |
63 | '((w3 . gnus-article-wash-html-with-w3) | |
64 | (w3m . gnus-article-wash-html-with-w3m) | |
73043f7d | 65 | (w3m-standalone . gnus-article-wash-html-with-w3m-standalone) |
23f87bed MB |
66 | (links mm-inline-wash-with-file |
67 | mm-links-remove-leading-blank | |
68 | "links" "-dump" file) | |
69 | (lynx mm-inline-wash-with-stdin nil | |
70 | "lynx" "-dump" "-force_html" "-stdin" "-nolist") | |
71 | (html2text html2text)) | |
72 | "The attributes of washer types for text/html.") | |
73 | ||
5f4264e5 | 74 | (defcustom mm-fill-flowed t |
01c52d31 | 75 | "If non-nil a format=flowed article will be displayed flowed." |
5f4264e5 MB |
76 | :type 'boolean |
77 | :version "22.1" | |
78 | :group 'mime-display) | |
79 | ||
a41c2e6d G |
80 | (defcustom mm-inline-large-images-proportion 0.9 |
81 | "Maximum proportion of large image resized when | |
82 | `mm-inline-large-images' is set to resize." | |
83 | :type 'float | |
84 | :version "24.1" | |
85 | :group 'mime-display) | |
86 | ||
23f87bed MB |
87 | ;;; Internal variables. |
88 | ||
c113de23 GM |
89 | ;;; |
90 | ;;; Functions for displaying various formats inline | |
91 | ;;; | |
23f87bed | 92 | |
c113de23 GM |
93 | (defun mm-inline-image-emacs (handle) |
94 | (let ((b (point-marker)) | |
3d2440b4 | 95 | (inhibit-read-only t)) |
a41c2e6d G |
96 | (put-image |
97 | (let ((image (mm-get-image handle))) | |
98 | (if (eq mm-inline-large-images 'resize) | |
99 | (gnus-rescale-image image | |
100 | (let ((edges (gnus-window-inside-pixel-edges | |
101 | (get-buffer-window (current-buffer))))) | |
102 | (cons (truncate (* mm-inline-large-images-proportion | |
103 | (- (nth 2 edges) (nth 0 edges)))) | |
104 | (truncate (* mm-inline-large-images-proportion | |
105 | (- (nth 3 edges) (nth 1 edges))))))) | |
106 | image)) | |
107 | b) | |
23f87bed | 108 | (insert "\n\n") |
c113de23 GM |
109 | (mm-handle-set-undisplayer |
110 | handle | |
23f87bed MB |
111 | `(lambda () |
112 | (let ((b ,b) | |
3d2440b4 | 113 | (inhibit-read-only t)) |
23f87bed MB |
114 | (remove-images b b) |
115 | (delete-region b (+ b 2))))))) | |
c113de23 GM |
116 | |
117 | (defun mm-inline-image-xemacs (handle) | |
9efa445f DN |
118 | (when (featurep 'xemacs) |
119 | (insert "\n\n") | |
120 | (forward-char -2) | |
121 | (let ((annot (make-annotation (mm-get-image handle) nil 'text)) | |
3d2440b4 | 122 | (inhibit-read-only t)) |
9efa445f DN |
123 | (mm-handle-set-undisplayer |
124 | handle | |
125 | `(lambda () | |
126 | (let ((b ,(point-marker)) | |
3d2440b4 | 127 | (inhibit-read-only t)) |
9efa445f DN |
128 | (delete-annotation ,annot) |
129 | (delete-region (- b 2) b)))) | |
130 | (set-extent-property annot 'mm t) | |
131 | (set-extent-property annot 'duplicable t)))) | |
c113de23 GM |
132 | |
133 | (eval-and-compile | |
722a8409 | 134 | (if (featurep 'xemacs) |
c113de23 GM |
135 | (defalias 'mm-inline-image 'mm-inline-image-xemacs) |
136 | (defalias 'mm-inline-image 'mm-inline-image-emacs))) | |
137 | ||
49ad38a1 GM |
138 | ;; External. |
139 | (declare-function w3-do-setup "ext:w3" ()) | |
140 | (declare-function w3-region "ext:w3-display" (st nd)) | |
141 | (declare-function w3-prepare-buffer "ext:w3-display" (&rest args)) | |
142 | ||
c113de23 GM |
143 | (defvar mm-w3-setup nil) |
144 | (defun mm-setup-w3 () | |
145 | (unless mm-w3-setup | |
146 | (require 'w3) | |
147 | (w3-do-setup) | |
148 | (require 'url) | |
149 | (require 'w3-vars) | |
150 | (require 'url-vars) | |
151 | (setq mm-w3-setup t))) | |
152 | ||
23f87bed MB |
153 | (defun mm-inline-text-html-render-with-w3 (handle) |
154 | (mm-setup-w3) | |
155 | (let ((text (mm-get-part handle)) | |
156 | (b (point)) | |
157 | (url-standalone-mode t) | |
158 | (url-gateway-unplugged t) | |
159 | (w3-honor-stylesheets nil) | |
160 | (url-current-object | |
161 | (url-generic-parse-url (format "cid:%s" (mm-handle-id handle)))) | |
162 | (width (window-width)) | |
163 | (charset (mail-content-type-get | |
164 | (mm-handle-type handle) 'charset))) | |
165 | (save-excursion | |
01c52d31 | 166 | (insert (if charset (mm-decode-string text charset) text)) |
23f87bed MB |
167 | (save-restriction |
168 | (narrow-to-region b (point)) | |
01c52d31 MB |
169 | (unless charset |
170 | (goto-char (point-min)) | |
171 | (when (or (and (boundp 'w3-meta-content-type-charset-regexp) | |
172 | (re-search-forward | |
173 | w3-meta-content-type-charset-regexp nil t)) | |
174 | (and (boundp 'w3-meta-charset-content-type-regexp) | |
175 | (re-search-forward | |
176 | w3-meta-charset-content-type-regexp nil t))) | |
23f87bed | 177 | (setq charset |
01c52d31 MB |
178 | (let ((bsubstr (buffer-substring-no-properties |
179 | (match-beginning 2) | |
180 | (match-end 2)))) | |
181 | (if (fboundp 'w3-coding-system-for-mime-charset) | |
182 | (w3-coding-system-for-mime-charset bsubstr) | |
183 | (mm-charset-to-coding-system bsubstr)))) | |
184 | (delete-region (point-min) (point-max)) | |
185 | (insert (mm-decode-string text charset)))) | |
23f87bed | 186 | (save-window-excursion |
c113de23 | 187 | (save-restriction |
23f87bed MB |
188 | (let ((w3-strict-width width) |
189 | ;; Don't let w3 set the global version of | |
190 | ;; this variable. | |
191 | (fill-column fill-column)) | |
192 | (if (or debug-on-error debug-on-quit) | |
193 | (w3-region (point-min) (point-max)) | |
194 | (condition-case () | |
195 | (w3-region (point-min) (point-max)) | |
196 | (error | |
197 | (delete-region (point-min) (point-max)) | |
198 | (let ((b (point)) | |
199 | (charset (mail-content-type-get | |
200 | (mm-handle-type handle) 'charset))) | |
201 | (if (or (eq charset 'gnus-decoded) | |
202 | (eq mail-parse-charset 'gnus-decoded)) | |
203 | (save-restriction | |
204 | (narrow-to-region (point) (point)) | |
205 | (mm-insert-part handle) | |
206 | (goto-char (point-max))) | |
207 | (insert (mm-decode-string (mm-get-part handle) | |
208 | charset)))) | |
209 | (message | |
210 | "Error while rendering html; showing as text/plain"))))))) | |
211 | (mm-handle-set-undisplayer | |
212 | handle | |
213 | `(lambda () | |
3d2440b4 | 214 | (let ((inhibit-read-only t)) |
01c52d31 | 215 | ,@(if (functionp 'remove-specifier) |
3d2440b4 SM |
216 | '((dolist (prop '(background background-pixmap foreground)) |
217 | (remove-specifier | |
218 | (face-property 'default prop) | |
219 | (current-buffer))))) | |
23f87bed MB |
220 | (delete-region ,(point-min-marker) |
221 | ,(point-max-marker))))))))) | |
222 | ||
223 | (defvar mm-w3m-setup nil | |
224 | "Whether gnus-article-mode has been setup to use emacs-w3m.") | |
225 | ||
49ad38a1 GM |
226 | ;; External. |
227 | (declare-function w3m-detect-meta-charset "ext:w3m" ()) | |
228 | (declare-function w3m-region "ext:w3m" (start end &optional url charset)) | |
229 | ||
23f87bed MB |
230 | (defun mm-setup-w3m () |
231 | "Setup gnus-article-mode to use emacs-w3m." | |
232 | (unless mm-w3m-setup | |
233 | (require 'w3m) | |
234 | (unless (assq 'gnus-article-mode w3m-cid-retrieve-function-alist) | |
235 | (push (cons 'gnus-article-mode 'mm-w3m-cid-retrieve) | |
236 | w3m-cid-retrieve-function-alist)) | |
237 | (setq mm-w3m-setup t)) | |
238 | (setq w3m-display-inline-images mm-inline-text-html-with-images)) | |
239 | ||
240 | (defun mm-w3m-cid-retrieve-1 (url handle) | |
54506618 | 241 | (dolist (elem handle) |
fe62aacc MB |
242 | (when (consp elem) |
243 | (when (equal url (mm-handle-id elem)) | |
244 | (mm-insert-part elem) | |
245 | (throw 'found-handle (mm-handle-media-type elem))) | |
246 | (when (and (stringp (car elem)) | |
247 | (equal "multipart" (mm-handle-media-supertype elem))) | |
248 | (mm-w3m-cid-retrieve-1 url elem))))) | |
23f87bed MB |
249 | |
250 | (defun mm-w3m-cid-retrieve (url &rest args) | |
251 | "Insert a content pointed by URL if it has the cid: scheme." | |
252 | (when (string-match "\\`cid:" url) | |
fe62aacc MB |
253 | (or (catch 'found-handle |
254 | (mm-w3m-cid-retrieve-1 | |
255 | (setq url (concat "<" (substring url (match-end 0)) ">")) | |
256 | (with-current-buffer w3m-current-buffer | |
257 | gnus-article-mime-handles))) | |
258 | (prog1 | |
259 | nil | |
260 | (message "Failed to find \"Content-ID: %s\"" url))))) | |
23f87bed MB |
261 | |
262 | (defun mm-inline-text-html-render-with-w3m (handle) | |
263 | "Render a text/html part using emacs-w3m." | |
264 | (mm-setup-w3m) | |
265 | (let ((text (mm-get-part handle)) | |
266 | (b (point)) | |
6b554e88 MB |
267 | (charset (or (mail-content-type-get (mm-handle-type handle) 'charset) |
268 | mail-parse-charset))) | |
23f87bed MB |
269 | (save-excursion |
270 | (insert (if charset (mm-decode-string text charset) text)) | |
271 | (save-restriction | |
272 | (narrow-to-region b (point)) | |
273 | (unless charset | |
274 | (goto-char (point-min)) | |
275 | (when (setq charset (w3m-detect-meta-charset)) | |
c113de23 | 276 | (delete-region (point-min) (point-max)) |
23f87bed MB |
277 | (insert (mm-decode-string text charset)))) |
278 | (let ((w3m-safe-url-regexp mm-w3m-safe-url-regexp) | |
279 | w3m-force-redisplay) | |
280 | (w3m-region (point-min) (point-max) nil charset)) | |
1250af7b KY |
281 | ;; Put the mark meaning this part was rendered by emacs-w3m. |
282 | (put-text-property (point-min) (point-max) | |
283 | 'mm-inline-text-html-with-w3m t) | |
23f87bed MB |
284 | (when (and mm-inline-text-html-with-w3m-keymap |
285 | (boundp 'w3m-minor-mode-map) | |
286 | w3m-minor-mode-map) | |
886367d8 KY |
287 | (if (and (boundp 'w3m-link-map) |
288 | w3m-link-map) | |
1250af7b KY |
289 | (let* ((start (point-min)) |
290 | (end (point-max)) | |
291 | (on (get-text-property start 'w3m-href-anchor)) | |
292 | (map (copy-keymap w3m-link-map)) | |
293 | next) | |
886367d8 | 294 | (set-keymap-parent map w3m-minor-mode-map) |
1250af7b KY |
295 | (while (< start end) |
296 | (if on | |
297 | (progn | |
298 | (setq next (or (text-property-any start end | |
299 | 'w3m-href-anchor nil) | |
300 | end)) | |
301 | (put-text-property start next 'keymap map)) | |
302 | (setq next (or (text-property-not-all start end | |
303 | 'w3m-href-anchor nil) | |
304 | end)) | |
305 | (put-text-property start next 'keymap w3m-minor-mode-map)) | |
306 | (setq start next | |
307 | on (not on)))) | |
308 | (put-text-property (point-min) (point-max) | |
309 | 'keymap w3m-minor-mode-map))) | |
58090a8d MB |
310 | (mm-handle-set-undisplayer |
311 | handle | |
312 | `(lambda () | |
01c52d31 | 313 | (let ((inhibit-read-only t)) |
58090a8d MB |
314 | (delete-region ,(point-min-marker) |
315 | ,(point-max-marker))))))))) | |
23f87bed | 316 | |
7347faa8 MB |
317 | (defvar mm-w3m-standalone-supports-m17n-p (if (featurep 'mule) 'undecided) |
318 | "*T means the w3m command supports the m17n feature.") | |
319 | ||
320 | (defun mm-w3m-standalone-supports-m17n-p () | |
321 | "Say whether the w3m command supports the m17n feature." | |
322 | (cond ((eq mm-w3m-standalone-supports-m17n-p t) t) | |
323 | ((eq mm-w3m-standalone-supports-m17n-p nil) nil) | |
324 | ((not (featurep 'mule)) (setq mm-w3m-standalone-supports-m17n-p nil)) | |
325 | ((condition-case nil | |
326 | (let ((coding-system-for-write 'iso-2022-jp) | |
327 | (coding-system-for-read 'iso-2022-jp) | |
328 | (str (mm-decode-coding-string "\ | |
8f7abae3 | 329 | \e$B#D#o#e#s!!#w#3#m!!#s#u#p#p#o#r#t!!#m#1#7#n!)\e(B" 'iso-2022-jp))) |
7347faa8 MB |
330 | (mm-with-multibyte-buffer |
331 | (insert str) | |
332 | (call-process-region | |
333 | (point-min) (point-max) "w3m" t t nil "-dump" | |
334 | "-T" "text/html" "-I" "iso-2022-jp" "-O" "iso-2022-jp") | |
335 | (goto-char (point-min)) | |
336 | (search-forward str nil t))) | |
337 | (error nil)) | |
338 | (setq mm-w3m-standalone-supports-m17n-p t)) | |
339 | (t | |
340 | ;;(message "You had better upgrade your w3m command") | |
341 | (setq mm-w3m-standalone-supports-m17n-p nil)))) | |
342 | ||
73043f7d MB |
343 | (defun mm-inline-text-html-render-with-w3m-standalone (handle) |
344 | "Render a text/html part using w3m." | |
7347faa8 MB |
345 | (if (mm-w3m-standalone-supports-m17n-p) |
346 | (let ((source (mm-get-part handle)) | |
6b554e88 MB |
347 | (charset (or (mail-content-type-get (mm-handle-type handle) |
348 | 'charset) | |
349 | (symbol-name mail-parse-charset))) | |
7347faa8 MB |
350 | cs) |
351 | (unless (and charset | |
352 | (setq cs (mm-charset-to-coding-system charset)) | |
353 | (not (eq cs 'ascii))) | |
354 | ;; The default. | |
355 | (setq charset "iso-8859-1" | |
356 | cs 'iso-8859-1)) | |
357 | (mm-insert-inline | |
358 | handle | |
359 | (mm-with-unibyte-buffer | |
360 | (insert source) | |
361 | (mm-enable-multibyte) | |
362 | (let ((coding-system-for-write 'binary) | |
363 | (coding-system-for-read cs)) | |
364 | (call-process-region | |
365 | (point-min) (point-max) | |
366 | "w3m" t t nil "-dump" "-T" "text/html" | |
367 | "-I" charset "-O" charset)) | |
368 | (buffer-string)))) | |
369 | (mm-inline-render-with-stdin handle nil "w3m" "-dump" "-T" "text/html"))) | |
73043f7d | 370 | |
23f87bed MB |
371 | (defun mm-links-remove-leading-blank () |
372 | ;; Delete the annoying three spaces preceding each line of links | |
373 | ;; output. | |
374 | (goto-char (point-min)) | |
375 | (while (re-search-forward "^ " nil t) | |
376 | (delete-region (match-beginning 0) (match-end 0)))) | |
377 | ||
378 | (defun mm-inline-wash-with-file (post-func cmd &rest args) | |
379 | (let ((file (mm-make-temp-file | |
380 | (expand-file-name "mm" mm-tmp-directory)))) | |
381 | (let ((coding-system-for-write 'binary)) | |
382 | (write-region (point-min) (point-max) file nil 'silent)) | |
383 | (delete-region (point-min) (point-max)) | |
384 | (unwind-protect | |
385 | (apply 'call-process cmd nil t nil (mapcar 'eval args)) | |
386 | (delete-file file)) | |
387 | (and post-func (funcall post-func)))) | |
388 | ||
389 | (defun mm-inline-wash-with-stdin (post-func cmd &rest args) | |
390 | (let ((coding-system-for-write 'binary)) | |
391 | (apply 'call-process-region (point-min) (point-max) | |
392 | cmd t t nil args)) | |
393 | (and post-func (funcall post-func))) | |
394 | ||
395 | (defun mm-inline-render-with-file (handle post-func cmd &rest args) | |
396 | (let ((source (mm-get-part handle))) | |
397 | (mm-insert-inline | |
398 | handle | |
399 | (mm-with-unibyte-buffer | |
400 | (insert source) | |
401 | (apply 'mm-inline-wash-with-file post-func cmd args) | |
402 | (buffer-string))))) | |
403 | ||
404 | (defun mm-inline-render-with-stdin (handle post-func cmd &rest args) | |
405 | (let ((source (mm-get-part handle))) | |
406 | (mm-insert-inline | |
407 | handle | |
408 | (mm-with-unibyte-buffer | |
409 | (insert source) | |
410 | (apply 'mm-inline-wash-with-stdin post-func cmd args) | |
411 | (buffer-string))))) | |
412 | ||
413 | (defun mm-inline-render-with-function (handle func &rest args) | |
414 | (let ((source (mm-get-part handle)) | |
6b554e88 MB |
415 | (charset (or (mail-content-type-get (mm-handle-type handle) 'charset) |
416 | mail-parse-charset))) | |
23f87bed MB |
417 | (mm-insert-inline |
418 | handle | |
419 | (mm-with-multibyte-buffer | |
420 | (insert (if charset | |
421 | (mm-decode-string source charset) | |
422 | source)) | |
423 | (apply func args) | |
424 | (buffer-string))))) | |
425 | ||
426 | (defun mm-inline-text-html (handle) | |
427 | (let* ((func (or mm-inline-text-html-renderer mm-text-html-renderer)) | |
428 | (entry (assq func mm-text-html-renderer-alist)) | |
3d2440b4 | 429 | (inhibit-read-only t)) |
23f87bed MB |
430 | (if entry |
431 | (setq func (cdr entry))) | |
432 | (cond | |
433 | ((functionp func) | |
434 | (funcall func handle)) | |
c113de23 | 435 | (t |
23f87bed MB |
436 | (apply (car func) handle (cdr func)))))) |
437 | ||
438 | (defun mm-inline-text-vcard (handle) | |
3d2440b4 | 439 | (let ((inhibit-read-only t)) |
23f87bed MB |
440 | (mm-insert-inline |
441 | handle | |
442 | (concat "\n-- \n" | |
443 | (ignore-errors | |
444 | (if (fboundp 'vcard-pretty-print) | |
445 | (vcard-pretty-print (mm-get-part handle)) | |
446 | (vcard-format-string | |
447 | (vcard-parse-string (mm-get-part handle) | |
448 | 'vcard-standard-filter)))))))) | |
449 | ||
450 | (defun mm-inline-text (handle) | |
451 | (let ((b (point)) | |
452 | (type (mm-handle-media-subtype handle)) | |
453 | (charset (mail-content-type-get | |
454 | (mm-handle-type handle) 'charset)) | |
3d2440b4 | 455 | (inhibit-read-only t)) |
23f87bed MB |
456 | (if (or (eq charset 'gnus-decoded) |
457 | ;; This is probably not entirely correct, but | |
458 | ;; makes rfc822 parts with embedded multiparts work. | |
459 | (eq mail-parse-charset 'gnus-decoded)) | |
c113de23 | 460 | (save-restriction |
23f87bed MB |
461 | (narrow-to-region (point) (point)) |
462 | (mm-insert-part handle) | |
463 | (goto-char (point-max))) | |
464 | (insert (mm-decode-string (mm-get-part handle) charset))) | |
5f4264e5 MB |
465 | (when (and mm-fill-flowed |
466 | (equal type "plain") | |
23f87bed MB |
467 | (equal (cdr (assoc 'format (mm-handle-type handle))) |
468 | "flowed")) | |
469 | (save-restriction | |
470 | (narrow-to-region b (point)) | |
471 | (goto-char b) | |
01c52d31 MB |
472 | (fill-flowed nil (equal (cdr (assoc 'delsp (mm-handle-type handle))) |
473 | "yes")) | |
23f87bed MB |
474 | (goto-char (point-max)))) |
475 | (save-restriction | |
476 | (narrow-to-region b (point)) | |
3d2440b4 SM |
477 | (when (member type '("enriched" "richtext")) |
478 | (set-text-properties (point-min) (point-max) nil) | |
23f87bed MB |
479 | (ignore-errors |
480 | (enriched-decode (point-min) (point-max)))) | |
481 | (mm-handle-set-undisplayer | |
482 | handle | |
483 | `(lambda () | |
3d2440b4 | 484 | (let ((inhibit-read-only t)) |
23f87bed MB |
485 | (delete-region ,(point-min-marker) |
486 | ,(point-max-marker)))))))) | |
c113de23 GM |
487 | |
488 | (defun mm-insert-inline (handle text) | |
489 | "Insert TEXT inline from HANDLE." | |
23f87bed | 490 | (let ((b (point))) |
c113de23 | 491 | (insert text) |
01c52d31 MB |
492 | (unless (bolp) |
493 | (insert "\n")) | |
c113de23 GM |
494 | (mm-handle-set-undisplayer |
495 | handle | |
496 | `(lambda () | |
3d2440b4 SM |
497 | (let ((inhibit-read-only t)) |
498 | (delete-region ,(copy-marker b) | |
499 | ,(copy-marker (point)))))))) | |
c113de23 GM |
500 | |
501 | (defun mm-inline-audio (handle) | |
502 | (message "Not implemented")) | |
503 | ||
504 | (defun mm-view-sound-file () | |
505 | (message "Not implemented")) | |
506 | ||
507 | (defun mm-w3-prepare-buffer () | |
508 | (require 'w3) | |
6833e8ba | 509 | (let ((url-standalone-mode t) |
23f87bed MB |
510 | (url-gateway-unplugged t) |
511 | (w3-honor-stylesheets nil)) | |
c113de23 GM |
512 | (w3-prepare-buffer))) |
513 | ||
514 | (defun mm-view-message () | |
515 | (mm-enable-multibyte) | |
516 | (let (handles) | |
517 | (let (gnus-article-mime-handles) | |
518 | ;; Double decode problem may happen. See mm-inline-message. | |
519 | (run-hooks 'gnus-article-decode-hook) | |
520 | (gnus-article-prepare-display) | |
521 | (setq handles gnus-article-mime-handles)) | |
522 | (when handles | |
523 | (setq gnus-article-mime-handles | |
23f87bed | 524 | (mm-merge-handles gnus-article-mime-handles handles)))) |
c113de23 GM |
525 | (fundamental-mode) |
526 | (goto-char (point-min))) | |
527 | ||
528 | (defun mm-inline-message (handle) | |
529 | (let ((b (point)) | |
4e728580 | 530 | (bolp (bolp)) |
c113de23 GM |
531 | (charset (mail-content-type-get |
532 | (mm-handle-type handle) 'charset)) | |
533 | gnus-displaying-mime handles) | |
534 | (when (and charset | |
535 | (stringp charset)) | |
536 | (setq charset (intern (downcase charset))) | |
537 | (when (eq charset 'us-ascii) | |
538 | (setq charset nil))) | |
539 | (save-excursion | |
540 | (save-restriction | |
541 | (narrow-to-region b b) | |
542 | (mm-insert-part handle) | |
543 | (let (gnus-article-mime-handles | |
4e728580 SZ |
544 | ;; disable prepare hook |
545 | gnus-article-prepare-hook | |
c113de23 | 546 | (gnus-newsgroup-charset |
34128042 MB |
547 | (unless (eq charset 'gnus-decoded) ;; mm-uu might set it. |
548 | (or charset gnus-newsgroup-charset)))) | |
23f87bed MB |
549 | (let ((gnus-original-article-buffer (mm-handle-buffer handle))) |
550 | (run-hooks 'gnus-article-decode-hook)) | |
c113de23 GM |
551 | (gnus-article-prepare-display) |
552 | (setq handles gnus-article-mime-handles)) | |
4e728580 SZ |
553 | (goto-char (point-min)) |
554 | (unless bolp | |
555 | (insert "\n")) | |
c113de23 GM |
556 | (goto-char (point-max)) |
557 | (unless (bolp) | |
558 | (insert "\n")) | |
559 | (insert "----------\n\n") | |
560 | (when handles | |
561 | (setq gnus-article-mime-handles | |
23f87bed | 562 | (mm-merge-handles gnus-article-mime-handles handles))) |
c113de23 GM |
563 | (mm-handle-set-undisplayer |
564 | handle | |
565 | `(lambda () | |
3d2440b4 | 566 | (let ((inhibit-read-only t)) |
722a8409 | 567 | (if (fboundp 'remove-specifier) |
c113de23 | 568 | ;; This is only valid on XEmacs. |
3d2440b4 SM |
569 | (dolist (prop '(background background-pixmap foreground)) |
570 | (remove-specifier | |
571 | (face-property 'default prop) (current-buffer)))) | |
c113de23 GM |
572 | (delete-region ,(point-min-marker) ,(point-max-marker))))))))) |
573 | ||
ce9401f3 | 574 | (defun mm-display-inline-fontify (handle mode) |
01c52d31 MB |
575 | (let ((charset (mail-content-type-get (mm-handle-type handle) 'charset)) |
576 | text coding-system) | |
577 | (unless (eq charset 'gnus-decoded) | |
578 | (mm-with-unibyte-buffer | |
579 | (mm-insert-part handle) | |
580 | (mm-decompress-buffer | |
581 | (or (mail-content-type-get (mm-handle-disposition handle) 'name) | |
582 | (mail-content-type-get (mm-handle-disposition handle) 'filename)) | |
583 | t t) | |
584 | (unless charset | |
585 | (setq coding-system (mm-find-buffer-file-coding-system))) | |
586 | (setq text (buffer-string)))) | |
23f87bed MB |
587 | ;; XEmacs @#$@ version of font-lock refuses to fully turn itself |
588 | ;; on for buffers whose name begins with " ". That's why we use | |
01c52d31 MB |
589 | ;; `with-current-buffer'/`generate-new-buffer' rather than |
590 | ;; `with-temp-buffer'. | |
591 | (with-current-buffer (generate-new-buffer "*fontification*") | |
592 | (buffer-disable-undo) | |
593 | (mm-enable-multibyte) | |
594 | (insert (cond ((eq charset 'gnus-decoded) | |
595 | (with-current-buffer (mm-handle-buffer handle) | |
596 | (buffer-string))) | |
597 | (coding-system | |
598 | (mm-decode-coding-string text coding-system)) | |
599 | (charset | |
600 | (mm-decode-string text charset)) | |
601 | (t | |
602 | text))) | |
603 | (require 'font-lock) | |
604 | (let ((font-lock-maximum-size nil) | |
605 | ;; Disable support modes, e.g., jit-lock, lazy-lock, etc. | |
606 | (font-lock-mode-hook nil) | |
607 | (font-lock-support-mode nil) | |
608 | ;; I find font-lock a bit too verbose. | |
609 | (font-lock-verbose nil)) | |
610 | (funcall mode) | |
611 | ;; The mode function might have already turned on font-lock. | |
612 | (unless (symbol-value 'font-lock-mode) | |
613 | (font-lock-fontify-buffer))) | |
614 | ;; By default, XEmacs font-lock uses non-duplicable text | |
615 | ;; properties. This code forces all the text properties | |
616 | ;; to be copied along with the text. | |
9efa445f | 617 | (when (featurep 'xemacs) |
01c52d31 MB |
618 | (map-extents (lambda (ext ignored) |
619 | (set-extent-property ext 'duplicable t) | |
620 | nil) | |
621 | nil nil nil nil nil 'text-prop)) | |
622 | (setq text (buffer-string)) | |
623 | (kill-buffer (current-buffer))) | |
c113de23 GM |
624 | (mm-insert-inline handle text))) |
625 | ||
23f87bed MB |
626 | ;; Shouldn't these functions check whether the user even wants to use |
627 | ;; font-lock? At least under XEmacs, this fontification is pretty | |
628 | ;; much unconditional. Also, it would be nice to change for the size | |
629 | ;; of the fontified region. | |
630 | ||
ce9401f3 DL |
631 | (defun mm-display-patch-inline (handle) |
632 | (mm-display-inline-fontify handle 'diff-mode)) | |
633 | ||
634 | (defun mm-display-elisp-inline (handle) | |
635 | (mm-display-inline-fontify handle 'emacs-lisp-mode)) | |
636 | ||
01c52d31 MB |
637 | (defun mm-display-dns-inline (handle) |
638 | (mm-display-inline-fontify handle 'dns-mode)) | |
639 | ||
23f87bed MB |
640 | ;; id-signedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) |
641 | ;; us(840) rsadsi(113549) pkcs(1) pkcs7(7) 2 } | |
642 | (defvar mm-pkcs7-signed-magic | |
e52cac88 MB |
643 | "\x30\x5c\x28\x80\x5c\x7c\x81\x2e\x5c\x7c\x82\x2e\x2e\x5c\x7c\x83\x2e\x2e\ |
644 | \x2e\x5c\x29\x06\x09\x5c\x2a\x86\x48\x86\xf7\x0d\x01\x07\x02") | |
23f87bed MB |
645 | |
646 | ;; id-envelopedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) | |
647 | ;; us(840) rsadsi(113549) pkcs(1) pkcs7(7) 3 } | |
648 | (defvar mm-pkcs7-enveloped-magic | |
e52cac88 MB |
649 | "\x30\x5c\x28\x80\x5c\x7c\x81\x2e\x5c\x7c\x82\x2e\x2e\x5c\x7c\x83\x2e\x2e\ |
650 | \x2e\x5c\x29\x06\x09\x5c\x2a\x86\x48\x86\xf7\x0d\x01\x07\x03") | |
23f87bed MB |
651 | |
652 | (defun mm-view-pkcs7-get-type (handle) | |
653 | (mm-with-unibyte-buffer | |
654 | (mm-insert-part handle) | |
655 | (cond ((looking-at mm-pkcs7-enveloped-magic) | |
656 | 'enveloped) | |
657 | ((looking-at mm-pkcs7-signed-magic) | |
658 | 'signed) | |
659 | (t | |
660 | (error "Could not identify PKCS#7 type"))))) | |
661 | ||
662 | (defun mm-view-pkcs7 (handle) | |
663 | (case (mm-view-pkcs7-get-type handle) | |
664 | (enveloped (mm-view-pkcs7-decrypt handle)) | |
665 | (signed (mm-view-pkcs7-verify handle)) | |
666 | (otherwise (error "Unknown or unimplemented PKCS#7 type")))) | |
667 | ||
668 | (defun mm-view-pkcs7-verify (handle) | |
01c52d31 MB |
669 | (let ((verified nil)) |
670 | (with-temp-buffer | |
671 | (insert "MIME-Version: 1.0\n") | |
672 | (mm-insert-headers "application/pkcs7-mime" "base64" "smime.p7m") | |
673 | (insert-buffer-substring (mm-handle-buffer handle)) | |
674 | (setq verified (smime-verify-region (point-min) (point-max)))) | |
675 | (goto-char (point-min)) | |
676 | (mm-insert-part handle) | |
677 | (if (search-forward "Content-Type: " nil t) | |
678 | (delete-region (point-min) (match-beginning 0))) | |
679 | (goto-char (point-max)) | |
680 | (if (re-search-backward "--\r?\n?" nil t) | |
681 | (delete-region (match-end 0) (point-max))) | |
682 | (unless verified | |
683 | (insert-buffer-substring smime-details-buffer))) | |
23f87bed MB |
684 | (goto-char (point-min)) |
685 | (while (search-forward "\r\n" nil t) | |
686 | (replace-match "\n")) | |
23f87bed MB |
687 | t) |
688 | ||
23f87bed MB |
689 | (defun mm-view-pkcs7-decrypt (handle) |
690 | (insert-buffer-substring (mm-handle-buffer handle)) | |
691 | (goto-char (point-min)) | |
692 | (insert "MIME-Version: 1.0\n") | |
693 | (mm-insert-headers "application/pkcs7-mime" "base64" "smime.p7m") | |
694 | (smime-decrypt-region | |
695 | (point-min) (point-max) | |
696 | (if (= (length smime-keys) 1) | |
697 | (cadar smime-keys) | |
698 | (smime-get-key-by-email | |
229b59da G |
699 | (gnus-completing-read |
700 | "Decipher using key" | |
701 | smime-keys nil nil nil (car-safe (car-safe smime-keys)))))) | |
23f87bed MB |
702 | (goto-char (point-min)) |
703 | (while (search-forward "\r\n" nil t) | |
704 | (replace-match "\n")) | |
705 | (goto-char (point-min))) | |
706 | ||
c113de23 GM |
707 | (provide 'mm-view) |
708 | ||
715a2ca2 | 709 | ;;; mm-view.el ends here |