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715a2ca2 | 1 | ;;; mm-view.el --- functions for viewing MIME objects |
e84b4b86 | 2 | |
ba318903 | 3 | ;; Copyright (C) 1998-2014 Free Software Foundation, Inc. |
c113de23 GM |
4 | |
5 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> | |
6 | ;; This file is part of GNU Emacs. | |
7 | ||
5e809f55 | 8 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
c113de23 | 9 | ;; it under the terms of the GNU General Public License as published by |
5e809f55 GM |
10 | ;; the Free Software Foundation, either version 3 of the License, or |
11 | ;; (at your option) any later version. | |
c113de23 GM |
12 | |
13 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
14 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
5e809f55 | 15 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
c113de23 GM |
16 | ;; GNU General Public License for more details. |
17 | ||
18 | ;; You should have received a copy of the GNU General Public License | |
5e809f55 | 19 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
c113de23 GM |
20 | |
21 | ;;; Commentary: | |
22 | ||
23 | ;;; Code: | |
f0b7f5a8 | 24 | |
c113de23 GM |
25 | (eval-when-compile (require 'cl)) |
26 | (require 'mail-parse) | |
27 | (require 'mailcap) | |
28 | (require 'mm-bodies) | |
29 | (require 'mm-decode) | |
01c52d31 | 30 | (require 'smime) |
bb7f5cbc | 31 | (require 'mml-smime) |
c113de23 | 32 | |
229b59da | 33 | (autoload 'gnus-completing-read "gnus-util") |
a41c2e6d | 34 | (autoload 'gnus-window-inside-pixel-edges "gnus-ems") |
8abf1b22 GM |
35 | (autoload 'gnus-article-prepare-display "gnus-art") |
36 | (autoload 'vcard-parse-string "vcard") | |
37 | (autoload 'vcard-format-string "vcard") | |
38 | (autoload 'fill-flowed "flow-fill") | |
39 | (autoload 'html2text "html2text" nil t) | |
c113de23 | 40 | |
dd3eac76 JB |
41 | (defvar gnus-article-mime-handles) |
42 | (defvar gnus-newsgroup-charset) | |
43 | (defvar smime-keys) | |
44 | (defvar w3m-cid-retrieve-function-alist) | |
45 | (defvar w3m-current-buffer) | |
46 | (defvar w3m-display-inline-images) | |
47 | (defvar w3m-minor-mode-map) | |
48 | ||
23f87bed | 49 | (defvar mm-text-html-renderer-alist |
2526f423 | 50 | '((shr . mm-shr) |
23f87bed | 51 | (w3m . mm-inline-text-html-render-with-w3m) |
73043f7d | 52 | (w3m-standalone . mm-inline-text-html-render-with-w3m-standalone) |
2526f423 | 53 | (gnus-w3m . gnus-article-html) |
23f87bed MB |
54 | (links mm-inline-render-with-file |
55 | mm-links-remove-leading-blank | |
56 | "links" "-dump" file) | |
2526f423 G |
57 | (lynx mm-inline-render-with-stdin nil |
58 | "lynx" "-dump" "-force_html" "-stdin" "-nolist") | |
59 | (html2text mm-inline-render-with-function html2text)) | |
23f87bed MB |
60 | "The attributes of renderer types for text/html.") |
61 | ||
5f4264e5 | 62 | (defcustom mm-fill-flowed t |
01c52d31 | 63 | "If non-nil a format=flowed article will be displayed flowed." |
5f4264e5 MB |
64 | :type 'boolean |
65 | :version "22.1" | |
66 | :group 'mime-display) | |
67 | ||
a41c2e6d G |
68 | (defcustom mm-inline-large-images-proportion 0.9 |
69 | "Maximum proportion of large image resized when | |
70 | `mm-inline-large-images' is set to resize." | |
71 | :type 'float | |
72 | :version "24.1" | |
73 | :group 'mime-display) | |
74 | ||
23f87bed MB |
75 | ;;; Internal variables. |
76 | ||
c113de23 GM |
77 | ;;; |
78 | ;;; Functions for displaying various formats inline | |
79 | ;;; | |
23f87bed | 80 | |
c36dea19 GM |
81 | (autoload 'gnus-rescale-image "gnus-util") |
82 | ||
c113de23 GM |
83 | (defun mm-inline-image-emacs (handle) |
84 | (let ((b (point-marker)) | |
3d2440b4 | 85 | (inhibit-read-only t)) |
a41c2e6d G |
86 | (put-image |
87 | (let ((image (mm-get-image handle))) | |
88 | (if (eq mm-inline-large-images 'resize) | |
540e44db LMI |
89 | (gnus-rescale-image |
90 | image | |
91 | (let ((edges (gnus-window-inside-pixel-edges | |
92 | (get-buffer-window (current-buffer))))) | |
93 | (cons (truncate (* mm-inline-large-images-proportion | |
94 | (- (nth 2 edges) (nth 0 edges)))) | |
95 | (truncate (* mm-inline-large-images-proportion | |
96 | (- (nth 3 edges) (nth 1 edges))))))) | |
a41c2e6d G |
97 | image)) |
98 | b) | |
14ff920d | 99 | (insert "\n") |
c113de23 GM |
100 | (mm-handle-set-undisplayer |
101 | handle | |
23f87bed MB |
102 | `(lambda () |
103 | (let ((b ,b) | |
3d2440b4 | 104 | (inhibit-read-only t)) |
23f87bed | 105 | (remove-images b b) |
14ff920d | 106 | (delete-region b (1+ b))))))) |
c113de23 GM |
107 | |
108 | (defun mm-inline-image-xemacs (handle) | |
9efa445f | 109 | (when (featurep 'xemacs) |
14ff920d KY |
110 | (insert "\n") |
111 | (forward-char -1) | |
9efa445f | 112 | (let ((annot (make-annotation (mm-get-image handle) nil 'text)) |
3d2440b4 | 113 | (inhibit-read-only t)) |
9efa445f DN |
114 | (mm-handle-set-undisplayer |
115 | handle | |
116 | `(lambda () | |
117 | (let ((b ,(point-marker)) | |
3d2440b4 | 118 | (inhibit-read-only t)) |
9efa445f | 119 | (delete-annotation ,annot) |
14ff920d | 120 | (delete-region (1- b) b)))) |
9efa445f DN |
121 | (set-extent-property annot 'mm t) |
122 | (set-extent-property annot 'duplicable t)))) | |
c113de23 GM |
123 | |
124 | (eval-and-compile | |
722a8409 | 125 | (if (featurep 'xemacs) |
c113de23 GM |
126 | (defalias 'mm-inline-image 'mm-inline-image-xemacs) |
127 | (defalias 'mm-inline-image 'mm-inline-image-emacs))) | |
128 | ||
23f87bed MB |
129 | (defvar mm-w3m-setup nil |
130 | "Whether gnus-article-mode has been setup to use emacs-w3m.") | |
131 | ||
49ad38a1 GM |
132 | ;; External. |
133 | (declare-function w3m-detect-meta-charset "ext:w3m" ()) | |
134 | (declare-function w3m-region "ext:w3m" (start end &optional url charset)) | |
135 | ||
23f87bed MB |
136 | (defun mm-setup-w3m () |
137 | "Setup gnus-article-mode to use emacs-w3m." | |
138 | (unless mm-w3m-setup | |
139 | (require 'w3m) | |
140 | (unless (assq 'gnus-article-mode w3m-cid-retrieve-function-alist) | |
141 | (push (cons 'gnus-article-mode 'mm-w3m-cid-retrieve) | |
142 | w3m-cid-retrieve-function-alist)) | |
143 | (setq mm-w3m-setup t)) | |
144 | (setq w3m-display-inline-images mm-inline-text-html-with-images)) | |
145 | ||
146 | (defun mm-w3m-cid-retrieve-1 (url handle) | |
54506618 | 147 | (dolist (elem handle) |
fe62aacc MB |
148 | (when (consp elem) |
149 | (when (equal url (mm-handle-id elem)) | |
150 | (mm-insert-part elem) | |
151 | (throw 'found-handle (mm-handle-media-type elem))) | |
152 | (when (and (stringp (car elem)) | |
153 | (equal "multipart" (mm-handle-media-supertype elem))) | |
154 | (mm-w3m-cid-retrieve-1 url elem))))) | |
23f87bed MB |
155 | |
156 | (defun mm-w3m-cid-retrieve (url &rest args) | |
157 | "Insert a content pointed by URL if it has the cid: scheme." | |
158 | (when (string-match "\\`cid:" url) | |
fe62aacc MB |
159 | (or (catch 'found-handle |
160 | (mm-w3m-cid-retrieve-1 | |
161 | (setq url (concat "<" (substring url (match-end 0)) ">")) | |
162 | (with-current-buffer w3m-current-buffer | |
163 | gnus-article-mime-handles))) | |
164 | (prog1 | |
165 | nil | |
166 | (message "Failed to find \"Content-ID: %s\"" url))))) | |
23f87bed MB |
167 | |
168 | (defun mm-inline-text-html-render-with-w3m (handle) | |
169 | "Render a text/html part using emacs-w3m." | |
170 | (mm-setup-w3m) | |
171 | (let ((text (mm-get-part handle)) | |
172 | (b (point)) | |
6b554e88 MB |
173 | (charset (or (mail-content-type-get (mm-handle-type handle) 'charset) |
174 | mail-parse-charset))) | |
23f87bed MB |
175 | (save-excursion |
176 | (insert (if charset (mm-decode-string text charset) text)) | |
177 | (save-restriction | |
178 | (narrow-to-region b (point)) | |
179 | (unless charset | |
180 | (goto-char (point-min)) | |
181 | (when (setq charset (w3m-detect-meta-charset)) | |
c113de23 | 182 | (delete-region (point-min) (point-max)) |
23f87bed MB |
183 | (insert (mm-decode-string text charset)))) |
184 | (let ((w3m-safe-url-regexp mm-w3m-safe-url-regexp) | |
185 | w3m-force-redisplay) | |
186 | (w3m-region (point-min) (point-max) nil charset)) | |
1250af7b KY |
187 | ;; Put the mark meaning this part was rendered by emacs-w3m. |
188 | (put-text-property (point-min) (point-max) | |
189 | 'mm-inline-text-html-with-w3m t) | |
23f87bed MB |
190 | (when (and mm-inline-text-html-with-w3m-keymap |
191 | (boundp 'w3m-minor-mode-map) | |
192 | w3m-minor-mode-map) | |
886367d8 KY |
193 | (if (and (boundp 'w3m-link-map) |
194 | w3m-link-map) | |
1250af7b KY |
195 | (let* ((start (point-min)) |
196 | (end (point-max)) | |
197 | (on (get-text-property start 'w3m-href-anchor)) | |
198 | (map (copy-keymap w3m-link-map)) | |
199 | next) | |
886367d8 | 200 | (set-keymap-parent map w3m-minor-mode-map) |
1250af7b KY |
201 | (while (< start end) |
202 | (if on | |
203 | (progn | |
204 | (setq next (or (text-property-any start end | |
205 | 'w3m-href-anchor nil) | |
206 | end)) | |
207 | (put-text-property start next 'keymap map)) | |
208 | (setq next (or (text-property-not-all start end | |
209 | 'w3m-href-anchor nil) | |
210 | end)) | |
211 | (put-text-property start next 'keymap w3m-minor-mode-map)) | |
212 | (setq start next | |
213 | on (not on)))) | |
214 | (put-text-property (point-min) (point-max) | |
215 | 'keymap w3m-minor-mode-map))) | |
58090a8d MB |
216 | (mm-handle-set-undisplayer |
217 | handle | |
218 | `(lambda () | |
01c52d31 | 219 | (let ((inhibit-read-only t)) |
14ff920d | 220 | (delete-region ,(copy-marker (point-min) t) |
0d46b5f1 | 221 | ,(point-max-marker))))))))) |
23f87bed | 222 | |
7347faa8 MB |
223 | (defvar mm-w3m-standalone-supports-m17n-p (if (featurep 'mule) 'undecided) |
224 | "*T means the w3m command supports the m17n feature.") | |
225 | ||
226 | (defun mm-w3m-standalone-supports-m17n-p () | |
227 | "Say whether the w3m command supports the m17n feature." | |
228 | (cond ((eq mm-w3m-standalone-supports-m17n-p t) t) | |
229 | ((eq mm-w3m-standalone-supports-m17n-p nil) nil) | |
230 | ((not (featurep 'mule)) (setq mm-w3m-standalone-supports-m17n-p nil)) | |
231 | ((condition-case nil | |
232 | (let ((coding-system-for-write 'iso-2022-jp) | |
233 | (coding-system-for-read 'iso-2022-jp) | |
234 | (str (mm-decode-coding-string "\ | |
8f7abae3 | 235 | \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 |
236 | (mm-with-multibyte-buffer |
237 | (insert str) | |
238 | (call-process-region | |
239 | (point-min) (point-max) "w3m" t t nil "-dump" | |
240 | "-T" "text/html" "-I" "iso-2022-jp" "-O" "iso-2022-jp") | |
241 | (goto-char (point-min)) | |
242 | (search-forward str nil t))) | |
243 | (error nil)) | |
244 | (setq mm-w3m-standalone-supports-m17n-p t)) | |
245 | (t | |
246 | ;;(message "You had better upgrade your w3m command") | |
247 | (setq mm-w3m-standalone-supports-m17n-p nil)))) | |
248 | ||
73043f7d MB |
249 | (defun mm-inline-text-html-render-with-w3m-standalone (handle) |
250 | "Render a text/html part using w3m." | |
7347faa8 MB |
251 | (if (mm-w3m-standalone-supports-m17n-p) |
252 | (let ((source (mm-get-part handle)) | |
6b554e88 MB |
253 | (charset (or (mail-content-type-get (mm-handle-type handle) |
254 | 'charset) | |
255 | (symbol-name mail-parse-charset))) | |
7347faa8 | 256 | cs) |
07178229 KY |
257 | (if (and charset |
258 | (setq cs (mm-charset-to-coding-system charset nil t)) | |
259 | (not (eq cs 'ascii))) | |
260 | (setq charset (format "%s" (mm-coding-system-to-mime-charset cs))) | |
7347faa8 MB |
261 | ;; The default. |
262 | (setq charset "iso-8859-1" | |
263 | cs 'iso-8859-1)) | |
264 | (mm-insert-inline | |
265 | handle | |
266 | (mm-with-unibyte-buffer | |
267 | (insert source) | |
268 | (mm-enable-multibyte) | |
269 | (let ((coding-system-for-write 'binary) | |
270 | (coding-system-for-read cs)) | |
271 | (call-process-region | |
272 | (point-min) (point-max) | |
273 | "w3m" t t nil "-dump" "-T" "text/html" | |
274 | "-I" charset "-O" charset)) | |
275 | (buffer-string)))) | |
276 | (mm-inline-render-with-stdin handle nil "w3m" "-dump" "-T" "text/html"))) | |
73043f7d | 277 | |
23f87bed MB |
278 | (defun mm-links-remove-leading-blank () |
279 | ;; Delete the annoying three spaces preceding each line of links | |
280 | ;; output. | |
281 | (goto-char (point-min)) | |
282 | (while (re-search-forward "^ " nil t) | |
283 | (delete-region (match-beginning 0) (match-end 0)))) | |
284 | ||
285 | (defun mm-inline-wash-with-file (post-func cmd &rest args) | |
286 | (let ((file (mm-make-temp-file | |
287 | (expand-file-name "mm" mm-tmp-directory)))) | |
288 | (let ((coding-system-for-write 'binary)) | |
289 | (write-region (point-min) (point-max) file nil 'silent)) | |
290 | (delete-region (point-min) (point-max)) | |
291 | (unwind-protect | |
292 | (apply 'call-process cmd nil t nil (mapcar 'eval args)) | |
293 | (delete-file file)) | |
294 | (and post-func (funcall post-func)))) | |
295 | ||
296 | (defun mm-inline-wash-with-stdin (post-func cmd &rest args) | |
297 | (let ((coding-system-for-write 'binary)) | |
298 | (apply 'call-process-region (point-min) (point-max) | |
299 | cmd t t nil args)) | |
300 | (and post-func (funcall post-func))) | |
301 | ||
302 | (defun mm-inline-render-with-file (handle post-func cmd &rest args) | |
303 | (let ((source (mm-get-part handle))) | |
304 | (mm-insert-inline | |
305 | handle | |
306 | (mm-with-unibyte-buffer | |
307 | (insert source) | |
308 | (apply 'mm-inline-wash-with-file post-func cmd args) | |
309 | (buffer-string))))) | |
310 | ||
311 | (defun mm-inline-render-with-stdin (handle post-func cmd &rest args) | |
312 | (let ((source (mm-get-part handle))) | |
313 | (mm-insert-inline | |
314 | handle | |
315 | (mm-with-unibyte-buffer | |
316 | (insert source) | |
317 | (apply 'mm-inline-wash-with-stdin post-func cmd args) | |
318 | (buffer-string))))) | |
319 | ||
320 | (defun mm-inline-render-with-function (handle func &rest args) | |
321 | (let ((source (mm-get-part handle)) | |
6b554e88 MB |
322 | (charset (or (mail-content-type-get (mm-handle-type handle) 'charset) |
323 | mail-parse-charset))) | |
23f87bed MB |
324 | (mm-insert-inline |
325 | handle | |
326 | (mm-with-multibyte-buffer | |
327 | (insert (if charset | |
328 | (mm-decode-string source charset) | |
329 | source)) | |
330 | (apply func args) | |
331 | (buffer-string))))) | |
332 | ||
333 | (defun mm-inline-text-html (handle) | |
6ed7a66a G |
334 | (if (stringp (car handle)) |
335 | (mapcar 'mm-inline-text-html (cdr handle)) | |
336 | (let* ((func mm-text-html-renderer) | |
337 | (entry (assq func mm-text-html-renderer-alist)) | |
338 | (inhibit-read-only t)) | |
339 | (if entry | |
340 | (setq func (cdr entry))) | |
341 | (cond | |
342 | ((functionp func) | |
343 | (funcall func handle)) | |
344 | (t | |
345 | (apply (car func) handle (cdr func))))))) | |
23f87bed MB |
346 | |
347 | (defun mm-inline-text-vcard (handle) | |
3d2440b4 | 348 | (let ((inhibit-read-only t)) |
23f87bed MB |
349 | (mm-insert-inline |
350 | handle | |
351 | (concat "\n-- \n" | |
352 | (ignore-errors | |
353 | (if (fboundp 'vcard-pretty-print) | |
354 | (vcard-pretty-print (mm-get-part handle)) | |
355 | (vcard-format-string | |
356 | (vcard-parse-string (mm-get-part handle) | |
357 | 'vcard-standard-filter)))))))) | |
358 | ||
359 | (defun mm-inline-text (handle) | |
360 | (let ((b (point)) | |
361 | (type (mm-handle-media-subtype handle)) | |
362 | (charset (mail-content-type-get | |
363 | (mm-handle-type handle) 'charset)) | |
3d2440b4 | 364 | (inhibit-read-only t)) |
23f87bed MB |
365 | (if (or (eq charset 'gnus-decoded) |
366 | ;; This is probably not entirely correct, but | |
367 | ;; makes rfc822 parts with embedded multiparts work. | |
368 | (eq mail-parse-charset 'gnus-decoded)) | |
c113de23 | 369 | (save-restriction |
23f87bed MB |
370 | (narrow-to-region (point) (point)) |
371 | (mm-insert-part handle) | |
372 | (goto-char (point-max))) | |
247c22e1 | 373 | (mm-display-inline-fontify handle)) |
5f4264e5 MB |
374 | (when (and mm-fill-flowed |
375 | (equal type "plain") | |
23f87bed MB |
376 | (equal (cdr (assoc 'format (mm-handle-type handle))) |
377 | "flowed")) | |
378 | (save-restriction | |
379 | (narrow-to-region b (point)) | |
380 | (goto-char b) | |
01c52d31 MB |
381 | (fill-flowed nil (equal (cdr (assoc 'delsp (mm-handle-type handle))) |
382 | "yes")) | |
23f87bed MB |
383 | (goto-char (point-max)))) |
384 | (save-restriction | |
385 | (narrow-to-region b (point)) | |
3d2440b4 SM |
386 | (when (member type '("enriched" "richtext")) |
387 | (set-text-properties (point-min) (point-max) nil) | |
23f87bed MB |
388 | (ignore-errors |
389 | (enriched-decode (point-min) (point-max)))) | |
390 | (mm-handle-set-undisplayer | |
391 | handle | |
392 | `(lambda () | |
3d2440b4 | 393 | (let ((inhibit-read-only t)) |
14ff920d | 394 | (delete-region ,(copy-marker (point-min) t) |
0d46b5f1 | 395 | ,(point-max-marker)))))))) |
c113de23 GM |
396 | |
397 | (defun mm-insert-inline (handle text) | |
398 | "Insert TEXT inline from HANDLE." | |
23f87bed | 399 | (let ((b (point))) |
c113de23 | 400 | (insert text) |
01c52d31 MB |
401 | (unless (bolp) |
402 | (insert "\n")) | |
c113de23 GM |
403 | (mm-handle-set-undisplayer |
404 | handle | |
405 | `(lambda () | |
3d2440b4 | 406 | (let ((inhibit-read-only t)) |
14ff920d | 407 | (delete-region ,(copy-marker b t) |
0d46b5f1 | 408 | ,(point-marker))))))) |
c113de23 GM |
409 | |
410 | (defun mm-inline-audio (handle) | |
411 | (message "Not implemented")) | |
412 | ||
c113de23 GM |
413 | (defun mm-view-message () |
414 | (mm-enable-multibyte) | |
415 | (let (handles) | |
416 | (let (gnus-article-mime-handles) | |
417 | ;; Double decode problem may happen. See mm-inline-message. | |
418 | (run-hooks 'gnus-article-decode-hook) | |
419 | (gnus-article-prepare-display) | |
420 | (setq handles gnus-article-mime-handles)) | |
421 | (when handles | |
422 | (setq gnus-article-mime-handles | |
23f87bed | 423 | (mm-merge-handles gnus-article-mime-handles handles)))) |
c113de23 GM |
424 | (fundamental-mode) |
425 | (goto-char (point-min))) | |
426 | ||
427 | (defun mm-inline-message (handle) | |
428 | (let ((b (point)) | |
4e728580 | 429 | (bolp (bolp)) |
c113de23 GM |
430 | (charset (mail-content-type-get |
431 | (mm-handle-type handle) 'charset)) | |
432 | gnus-displaying-mime handles) | |
433 | (when (and charset | |
434 | (stringp charset)) | |
435 | (setq charset (intern (downcase charset))) | |
436 | (when (eq charset 'us-ascii) | |
437 | (setq charset nil))) | |
438 | (save-excursion | |
439 | (save-restriction | |
440 | (narrow-to-region b b) | |
441 | (mm-insert-part handle) | |
442 | (let (gnus-article-mime-handles | |
4e728580 SZ |
443 | ;; disable prepare hook |
444 | gnus-article-prepare-hook | |
c113de23 | 445 | (gnus-newsgroup-charset |
34128042 MB |
446 | (unless (eq charset 'gnus-decoded) ;; mm-uu might set it. |
447 | (or charset gnus-newsgroup-charset)))) | |
23f87bed MB |
448 | (let ((gnus-original-article-buffer (mm-handle-buffer handle))) |
449 | (run-hooks 'gnus-article-decode-hook)) | |
c113de23 GM |
450 | (gnus-article-prepare-display) |
451 | (setq handles gnus-article-mime-handles)) | |
4e728580 SZ |
452 | (goto-char (point-min)) |
453 | (unless bolp | |
454 | (insert "\n")) | |
c113de23 GM |
455 | (goto-char (point-max)) |
456 | (unless (bolp) | |
457 | (insert "\n")) | |
458 | (insert "----------\n\n") | |
459 | (when handles | |
460 | (setq gnus-article-mime-handles | |
23f87bed | 461 | (mm-merge-handles gnus-article-mime-handles handles))) |
c113de23 GM |
462 | (mm-handle-set-undisplayer |
463 | handle | |
464 | `(lambda () | |
3d2440b4 | 465 | (let ((inhibit-read-only t)) |
722a8409 | 466 | (if (fboundp 'remove-specifier) |
c113de23 | 467 | ;; This is only valid on XEmacs. |
3d2440b4 SM |
468 | (dolist (prop '(background background-pixmap foreground)) |
469 | (remove-specifier | |
470 | (face-property 'default prop) (current-buffer)))) | |
c113de23 GM |
471 | (delete-region ,(point-min-marker) ,(point-max-marker))))))))) |
472 | ||
252f26e9 LMI |
473 | ;; Shut up byte-compiler. |
474 | (defvar font-lock-mode-hook) | |
247c22e1 JD |
475 | (defun mm-display-inline-fontify (handle &optional mode) |
476 | "Insert HANDLE inline fontifying with MODE. | |
477 | If MODE is not set, try to find mode automatically." | |
01c52d31 MB |
478 | (let ((charset (mail-content-type-get (mm-handle-type handle) 'charset)) |
479 | text coding-system) | |
480 | (unless (eq charset 'gnus-decoded) | |
481 | (mm-with-unibyte-buffer | |
482 | (mm-insert-part handle) | |
483 | (mm-decompress-buffer | |
247c22e1 | 484 | (mm-handle-filename handle) |
01c52d31 MB |
485 | t t) |
486 | (unless charset | |
487 | (setq coding-system (mm-find-buffer-file-coding-system))) | |
488 | (setq text (buffer-string)))) | |
23f87bed MB |
489 | ;; XEmacs @#$@ version of font-lock refuses to fully turn itself |
490 | ;; on for buffers whose name begins with " ". That's why we use | |
01c52d31 MB |
491 | ;; `with-current-buffer'/`generate-new-buffer' rather than |
492 | ;; `with-temp-buffer'. | |
493 | (with-current-buffer (generate-new-buffer "*fontification*") | |
494 | (buffer-disable-undo) | |
495 | (mm-enable-multibyte) | |
496 | (insert (cond ((eq charset 'gnus-decoded) | |
497 | (with-current-buffer (mm-handle-buffer handle) | |
498 | (buffer-string))) | |
499 | (coding-system | |
500 | (mm-decode-coding-string text coding-system)) | |
501 | (charset | |
502 | (mm-decode-string text charset)) | |
503 | (t | |
504 | text))) | |
505 | (require 'font-lock) | |
252f26e9 | 506 | ;; I find font-lock a bit too verbose. |
576950c6 LI |
507 | (let ((font-lock-verbose nil) |
508 | (font-lock-support-mode nil)) | |
252f26e9 | 509 | ;; Disable support modes, e.g., jit-lock, lazy-lock, etc. |
29a8b279 | 510 | ;; Note: XEmacs people use `font-lock-mode-hook' to run those modes. |
252f26e9 | 511 | (set (make-local-variable 'font-lock-mode-hook) nil) |
247c22e1 | 512 | (setq buffer-file-name (mm-handle-filename handle)) |
b62f8267 | 513 | (set (make-local-variable 'enable-local-variables) nil) |
252f26e9 LMI |
514 | (with-demoted-errors |
515 | (if mode | |
516 | (funcall mode) | |
517 | (let ((auto-mode-alist | |
518 | (delq (rassq 'doc-view-mode-maybe auto-mode-alist) | |
519 | (copy-sequence auto-mode-alist)))) | |
520 | (set-auto-mode))) | |
521 | ;; The mode function might have already turned on font-lock. | |
522 | ;; Do not fontify if the guess mode is fundamental. | |
6711a21f | 523 | (unless (or font-lock-mode |
252f26e9 | 524 | (eq major-mode 'fundamental-mode)) |
6711a21f SM |
525 | (if (fboundp 'font-lock-ensure) |
526 | (font-lock-ensure) | |
527 | (font-lock-fontify-buffer))))) | |
01c52d31 MB |
528 | ;; By default, XEmacs font-lock uses non-duplicable text |
529 | ;; properties. This code forces all the text properties | |
530 | ;; to be copied along with the text. | |
9efa445f | 531 | (when (featurep 'xemacs) |
01c52d31 MB |
532 | (map-extents (lambda (ext ignored) |
533 | (set-extent-property ext 'duplicable t) | |
534 | nil) | |
535 | nil nil nil nil nil 'text-prop)) | |
536 | (setq text (buffer-string)) | |
247c22e1 JD |
537 | ;; Set buffer unmodified to avoid confirmation when killing the |
538 | ;; buffer. | |
539 | (set-buffer-modified-p nil) | |
01c52d31 | 540 | (kill-buffer (current-buffer))) |
c113de23 GM |
541 | (mm-insert-inline handle text))) |
542 | ||
23f87bed MB |
543 | ;; Shouldn't these functions check whether the user even wants to use |
544 | ;; font-lock? At least under XEmacs, this fontification is pretty | |
545 | ;; much unconditional. Also, it would be nice to change for the size | |
546 | ;; of the fontified region. | |
547 | ||
ce9401f3 DL |
548 | (defun mm-display-patch-inline (handle) |
549 | (mm-display-inline-fontify handle 'diff-mode)) | |
550 | ||
551 | (defun mm-display-elisp-inline (handle) | |
552 | (mm-display-inline-fontify handle 'emacs-lisp-mode)) | |
553 | ||
01c52d31 MB |
554 | (defun mm-display-dns-inline (handle) |
555 | (mm-display-inline-fontify handle 'dns-mode)) | |
556 | ||
6e3165fb JD |
557 | (defun mm-display-org-inline (handle) |
558 | "Show an Org mode text from HANDLE inline." | |
559 | (mm-display-inline-fontify handle 'org-mode)) | |
560 | ||
561 | (defun mm-display-shell-script-inline (handle) | |
008cad90 | 562 | "Show a shell script from HANDLE inline." |
6e3165fb JD |
563 | (mm-display-inline-fontify handle 'shell-script-mode)) |
564 | ||
008cad90 G |
565 | (defun mm-display-javascript-inline (handle) |
566 | "Show JavsScript code from HANDLE inline." | |
567 | (mm-display-inline-fontify handle 'javascript-mode)) | |
568 | ||
23f87bed MB |
569 | ;; id-signedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) |
570 | ;; us(840) rsadsi(113549) pkcs(1) pkcs7(7) 2 } | |
571 | (defvar mm-pkcs7-signed-magic | |
d058863a RH |
572 | (concat |
573 | "0" | |
574 | "\\(\\(\x80\\)" | |
575 | "\\|\\(\x81\\(.\\|\n\\)\\{1\\}\\)" | |
576 | "\\|\\(\x82\\(.\\|\n\\)\\{2\\}\\)" | |
577 | "\\|\\(\x83\\(.\\|\n\\)\\{3\\}\\)" | |
578 | "\\)" | |
579 | "\x06\x09\\*\x86H\x86\xf7\x0d\x01\x07\x02")) | |
23f87bed MB |
580 | |
581 | ;; id-envelopedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) | |
582 | ;; us(840) rsadsi(113549) pkcs(1) pkcs7(7) 3 } | |
583 | (defvar mm-pkcs7-enveloped-magic | |
d058863a RH |
584 | (concat |
585 | "0" | |
586 | "\\(\\(\x80\\)" | |
587 | "\\|\\(\x81\\(.\\|\n\\)\\{1\\}\\)" | |
588 | "\\|\\(\x82\\(.\\|\n\\)\\{2\\}\\)" | |
589 | "\\|\\(\x83\\(.\\|\n\\)\\{3\\}\\)" | |
590 | "\\)" | |
591 | "\x06\x09\\*\x86H\x86\xf7\x0d\x01\x07\x03")) | |
23f87bed MB |
592 | |
593 | (defun mm-view-pkcs7-get-type (handle) | |
594 | (mm-with-unibyte-buffer | |
595 | (mm-insert-part handle) | |
596 | (cond ((looking-at mm-pkcs7-enveloped-magic) | |
597 | 'enveloped) | |
598 | ((looking-at mm-pkcs7-signed-magic) | |
599 | 'signed) | |
600 | (t | |
601 | (error "Could not identify PKCS#7 type"))))) | |
602 | ||
b0feab7d | 603 | (defun mm-view-pkcs7 (handle &optional from) |
23f87bed | 604 | (case (mm-view-pkcs7-get-type handle) |
b0feab7d | 605 | (enveloped (mm-view-pkcs7-decrypt handle from)) |
23f87bed MB |
606 | (signed (mm-view-pkcs7-verify handle)) |
607 | (otherwise (error "Unknown or unimplemented PKCS#7 type")))) | |
608 | ||
609 | (defun mm-view-pkcs7-verify (handle) | |
01c52d31 MB |
610 | (let ((verified nil)) |
611 | (with-temp-buffer | |
612 | (insert "MIME-Version: 1.0\n") | |
613 | (mm-insert-headers "application/pkcs7-mime" "base64" "smime.p7m") | |
614 | (insert-buffer-substring (mm-handle-buffer handle)) | |
615 | (setq verified (smime-verify-region (point-min) (point-max)))) | |
616 | (goto-char (point-min)) | |
617 | (mm-insert-part handle) | |
618 | (if (search-forward "Content-Type: " nil t) | |
619 | (delete-region (point-min) (match-beginning 0))) | |
620 | (goto-char (point-max)) | |
621 | (if (re-search-backward "--\r?\n?" nil t) | |
622 | (delete-region (match-end 0) (point-max))) | |
623 | (unless verified | |
624 | (insert-buffer-substring smime-details-buffer))) | |
23f87bed MB |
625 | (goto-char (point-min)) |
626 | (while (search-forward "\r\n" nil t) | |
627 | (replace-match "\n")) | |
23f87bed MB |
628 | t) |
629 | ||
b0feab7d | 630 | (defun mm-view-pkcs7-decrypt (handle &optional from) |
23f87bed MB |
631 | (insert-buffer-substring (mm-handle-buffer handle)) |
632 | (goto-char (point-min)) | |
bb7f5cbc G |
633 | (if (eq mml-smime-use 'epg) |
634 | ;; Use EPG/gpgsm | |
635 | (let ((part (base64-decode-string (buffer-string)))) | |
636 | (erase-buffer) | |
637 | (insert (epg-decrypt-string (epg-make-context 'CMS) part))) | |
638 | ;; Use openssl | |
639 | (insert "MIME-Version: 1.0\n") | |
640 | (mm-insert-headers "application/pkcs7-mime" "base64" "smime.p7m") | |
641 | (smime-decrypt-region | |
642 | (point-min) (point-max) | |
643 | (if (= (length smime-keys) 1) | |
644 | (cadar smime-keys) | |
645 | (smime-get-key-by-email | |
646 | (gnus-completing-read | |
647 | "Decipher using key" | |
648 | smime-keys nil nil nil (car-safe (car-safe smime-keys))))) | |
649 | from)) | |
23f87bed MB |
650 | (goto-char (point-min)) |
651 | (while (search-forward "\r\n" nil t) | |
652 | (replace-match "\n")) | |
653 | (goto-char (point-min))) | |
654 | ||
c113de23 GM |
655 | (provide 'mm-view) |
656 | ||
715a2ca2 | 657 | ;;; mm-view.el ends here |