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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 | |
8abf1b22 GM |
34 | (autoload 'gnus-article-prepare-display "gnus-art") |
35 | (autoload 'vcard-parse-string "vcard") | |
36 | (autoload 'vcard-format-string "vcard") | |
37 | (autoload 'fill-flowed "flow-fill") | |
38 | (autoload 'html2text "html2text" nil t) | |
c113de23 | 39 | |
dd3eac76 JB |
40 | (defvar gnus-article-mime-handles) |
41 | (defvar gnus-newsgroup-charset) | |
42 | (defvar smime-keys) | |
43 | (defvar w3m-cid-retrieve-function-alist) | |
44 | (defvar w3m-current-buffer) | |
45 | (defvar w3m-display-inline-images) | |
46 | (defvar w3m-minor-mode-map) | |
47 | ||
23f87bed MB |
48 | (defvar mm-text-html-renderer-alist |
49 | '((w3 . mm-inline-text-html-render-with-w3) | |
50 | (w3m . mm-inline-text-html-render-with-w3m) | |
73043f7d | 51 | (w3m-standalone . mm-inline-text-html-render-with-w3m-standalone) |
23f87bed MB |
52 | (links mm-inline-render-with-file |
53 | mm-links-remove-leading-blank | |
54 | "links" "-dump" file) | |
55 | (lynx mm-inline-render-with-stdin nil | |
56 | "lynx" "-dump" "-force_html" "-stdin" "-nolist") | |
57 | (html2text mm-inline-render-with-function html2text)) | |
58 | "The attributes of renderer types for text/html.") | |
59 | ||
60 | (defvar mm-text-html-washer-alist | |
61 | '((w3 . gnus-article-wash-html-with-w3) | |
62 | (w3m . gnus-article-wash-html-with-w3m) | |
73043f7d | 63 | (w3m-standalone . gnus-article-wash-html-with-w3m-standalone) |
23f87bed MB |
64 | (links mm-inline-wash-with-file |
65 | mm-links-remove-leading-blank | |
66 | "links" "-dump" file) | |
67 | (lynx mm-inline-wash-with-stdin nil | |
68 | "lynx" "-dump" "-force_html" "-stdin" "-nolist") | |
69 | (html2text html2text)) | |
70 | "The attributes of washer types for text/html.") | |
71 | ||
5f4264e5 | 72 | (defcustom mm-fill-flowed t |
01c52d31 | 73 | "If non-nil a format=flowed article will be displayed flowed." |
5f4264e5 MB |
74 | :type 'boolean |
75 | :version "22.1" | |
76 | :group 'mime-display) | |
77 | ||
23f87bed MB |
78 | ;;; Internal variables. |
79 | ||
c113de23 GM |
80 | ;;; |
81 | ;;; Functions for displaying various formats inline | |
82 | ;;; | |
23f87bed | 83 | |
c113de23 GM |
84 | (defun mm-inline-image-emacs (handle) |
85 | (let ((b (point-marker)) | |
3d2440b4 | 86 | (inhibit-read-only t)) |
c113de23 | 87 | (put-image (mm-get-image handle) b) |
23f87bed | 88 | (insert "\n\n") |
c113de23 GM |
89 | (mm-handle-set-undisplayer |
90 | handle | |
23f87bed MB |
91 | `(lambda () |
92 | (let ((b ,b) | |
3d2440b4 | 93 | (inhibit-read-only t)) |
23f87bed MB |
94 | (remove-images b b) |
95 | (delete-region b (+ b 2))))))) | |
c113de23 GM |
96 | |
97 | (defun mm-inline-image-xemacs (handle) | |
9efa445f DN |
98 | (when (featurep 'xemacs) |
99 | (insert "\n\n") | |
100 | (forward-char -2) | |
101 | (let ((annot (make-annotation (mm-get-image handle) nil 'text)) | |
3d2440b4 | 102 | (inhibit-read-only t)) |
9efa445f DN |
103 | (mm-handle-set-undisplayer |
104 | handle | |
105 | `(lambda () | |
106 | (let ((b ,(point-marker)) | |
3d2440b4 | 107 | (inhibit-read-only t)) |
9efa445f DN |
108 | (delete-annotation ,annot) |
109 | (delete-region (- b 2) b)))) | |
110 | (set-extent-property annot 'mm t) | |
111 | (set-extent-property annot 'duplicable t)))) | |
c113de23 GM |
112 | |
113 | (eval-and-compile | |
722a8409 | 114 | (if (featurep 'xemacs) |
c113de23 GM |
115 | (defalias 'mm-inline-image 'mm-inline-image-xemacs) |
116 | (defalias 'mm-inline-image 'mm-inline-image-emacs))) | |
117 | ||
49ad38a1 GM |
118 | ;; External. |
119 | (declare-function w3-do-setup "ext:w3" ()) | |
120 | (declare-function w3-region "ext:w3-display" (st nd)) | |
121 | (declare-function w3-prepare-buffer "ext:w3-display" (&rest args)) | |
122 | ||
c113de23 GM |
123 | (defvar mm-w3-setup nil) |
124 | (defun mm-setup-w3 () | |
125 | (unless mm-w3-setup | |
126 | (require 'w3) | |
127 | (w3-do-setup) | |
128 | (require 'url) | |
129 | (require 'w3-vars) | |
130 | (require 'url-vars) | |
131 | (setq mm-w3-setup t))) | |
132 | ||
23f87bed MB |
133 | (defun mm-inline-text-html-render-with-w3 (handle) |
134 | (mm-setup-w3) | |
135 | (let ((text (mm-get-part handle)) | |
136 | (b (point)) | |
137 | (url-standalone-mode t) | |
138 | (url-gateway-unplugged t) | |
139 | (w3-honor-stylesheets nil) | |
140 | (url-current-object | |
141 | (url-generic-parse-url (format "cid:%s" (mm-handle-id handle)))) | |
142 | (width (window-width)) | |
143 | (charset (mail-content-type-get | |
144 | (mm-handle-type handle) 'charset))) | |
145 | (save-excursion | |
01c52d31 | 146 | (insert (if charset (mm-decode-string text charset) text)) |
23f87bed MB |
147 | (save-restriction |
148 | (narrow-to-region b (point)) | |
01c52d31 MB |
149 | (unless charset |
150 | (goto-char (point-min)) | |
151 | (when (or (and (boundp 'w3-meta-content-type-charset-regexp) | |
152 | (re-search-forward | |
153 | w3-meta-content-type-charset-regexp nil t)) | |
154 | (and (boundp 'w3-meta-charset-content-type-regexp) | |
155 | (re-search-forward | |
156 | w3-meta-charset-content-type-regexp nil t))) | |
23f87bed | 157 | (setq charset |
01c52d31 MB |
158 | (let ((bsubstr (buffer-substring-no-properties |
159 | (match-beginning 2) | |
160 | (match-end 2)))) | |
161 | (if (fboundp 'w3-coding-system-for-mime-charset) | |
162 | (w3-coding-system-for-mime-charset bsubstr) | |
163 | (mm-charset-to-coding-system bsubstr)))) | |
164 | (delete-region (point-min) (point-max)) | |
165 | (insert (mm-decode-string text charset)))) | |
23f87bed | 166 | (save-window-excursion |
c113de23 | 167 | (save-restriction |
23f87bed MB |
168 | (let ((w3-strict-width width) |
169 | ;; Don't let w3 set the global version of | |
170 | ;; this variable. | |
171 | (fill-column fill-column)) | |
172 | (if (or debug-on-error debug-on-quit) | |
173 | (w3-region (point-min) (point-max)) | |
174 | (condition-case () | |
175 | (w3-region (point-min) (point-max)) | |
176 | (error | |
177 | (delete-region (point-min) (point-max)) | |
178 | (let ((b (point)) | |
179 | (charset (mail-content-type-get | |
180 | (mm-handle-type handle) 'charset))) | |
181 | (if (or (eq charset 'gnus-decoded) | |
182 | (eq mail-parse-charset 'gnus-decoded)) | |
183 | (save-restriction | |
184 | (narrow-to-region (point) (point)) | |
185 | (mm-insert-part handle) | |
186 | (goto-char (point-max))) | |
187 | (insert (mm-decode-string (mm-get-part handle) | |
188 | charset)))) | |
189 | (message | |
190 | "Error while rendering html; showing as text/plain"))))))) | |
191 | (mm-handle-set-undisplayer | |
192 | handle | |
193 | `(lambda () | |
3d2440b4 | 194 | (let ((inhibit-read-only t)) |
01c52d31 | 195 | ,@(if (functionp 'remove-specifier) |
3d2440b4 SM |
196 | '((dolist (prop '(background background-pixmap foreground)) |
197 | (remove-specifier | |
198 | (face-property 'default prop) | |
199 | (current-buffer))))) | |
23f87bed MB |
200 | (delete-region ,(point-min-marker) |
201 | ,(point-max-marker))))))))) | |
202 | ||
203 | (defvar mm-w3m-setup nil | |
204 | "Whether gnus-article-mode has been setup to use emacs-w3m.") | |
205 | ||
49ad38a1 GM |
206 | ;; External. |
207 | (declare-function w3m-detect-meta-charset "ext:w3m" ()) | |
208 | (declare-function w3m-region "ext:w3m" (start end &optional url charset)) | |
209 | ||
23f87bed MB |
210 | (defun mm-setup-w3m () |
211 | "Setup gnus-article-mode to use emacs-w3m." | |
212 | (unless mm-w3m-setup | |
213 | (require 'w3m) | |
214 | (unless (assq 'gnus-article-mode w3m-cid-retrieve-function-alist) | |
215 | (push (cons 'gnus-article-mode 'mm-w3m-cid-retrieve) | |
216 | w3m-cid-retrieve-function-alist)) | |
217 | (setq mm-w3m-setup t)) | |
218 | (setq w3m-display-inline-images mm-inline-text-html-with-images)) | |
219 | ||
220 | (defun mm-w3m-cid-retrieve-1 (url handle) | |
54506618 | 221 | (dolist (elem handle) |
fe62aacc MB |
222 | (when (consp elem) |
223 | (when (equal url (mm-handle-id elem)) | |
224 | (mm-insert-part elem) | |
225 | (throw 'found-handle (mm-handle-media-type elem))) | |
226 | (when (and (stringp (car elem)) | |
227 | (equal "multipart" (mm-handle-media-supertype elem))) | |
228 | (mm-w3m-cid-retrieve-1 url elem))))) | |
23f87bed MB |
229 | |
230 | (defun mm-w3m-cid-retrieve (url &rest args) | |
231 | "Insert a content pointed by URL if it has the cid: scheme." | |
232 | (when (string-match "\\`cid:" url) | |
fe62aacc MB |
233 | (or (catch 'found-handle |
234 | (mm-w3m-cid-retrieve-1 | |
235 | (setq url (concat "<" (substring url (match-end 0)) ">")) | |
236 | (with-current-buffer w3m-current-buffer | |
237 | gnus-article-mime-handles))) | |
238 | (prog1 | |
239 | nil | |
240 | (message "Failed to find \"Content-ID: %s\"" url))))) | |
23f87bed MB |
241 | |
242 | (defun mm-inline-text-html-render-with-w3m (handle) | |
243 | "Render a text/html part using emacs-w3m." | |
244 | (mm-setup-w3m) | |
245 | (let ((text (mm-get-part handle)) | |
246 | (b (point)) | |
6b554e88 MB |
247 | (charset (or (mail-content-type-get (mm-handle-type handle) 'charset) |
248 | mail-parse-charset))) | |
23f87bed MB |
249 | (save-excursion |
250 | (insert (if charset (mm-decode-string text charset) text)) | |
251 | (save-restriction | |
252 | (narrow-to-region b (point)) | |
253 | (unless charset | |
254 | (goto-char (point-min)) | |
255 | (when (setq charset (w3m-detect-meta-charset)) | |
c113de23 | 256 | (delete-region (point-min) (point-max)) |
23f87bed MB |
257 | (insert (mm-decode-string text charset)))) |
258 | (let ((w3m-safe-url-regexp mm-w3m-safe-url-regexp) | |
259 | w3m-force-redisplay) | |
260 | (w3m-region (point-min) (point-max) nil charset)) | |
1250af7b KY |
261 | ;; Put the mark meaning this part was rendered by emacs-w3m. |
262 | (put-text-property (point-min) (point-max) | |
263 | 'mm-inline-text-html-with-w3m t) | |
23f87bed MB |
264 | (when (and mm-inline-text-html-with-w3m-keymap |
265 | (boundp 'w3m-minor-mode-map) | |
266 | w3m-minor-mode-map) | |
886367d8 KY |
267 | (if (and (boundp 'w3m-link-map) |
268 | w3m-link-map) | |
1250af7b KY |
269 | (let* ((start (point-min)) |
270 | (end (point-max)) | |
271 | (on (get-text-property start 'w3m-href-anchor)) | |
272 | (map (copy-keymap w3m-link-map)) | |
273 | next) | |
886367d8 | 274 | (set-keymap-parent map w3m-minor-mode-map) |
1250af7b KY |
275 | (while (< start end) |
276 | (if on | |
277 | (progn | |
278 | (setq next (or (text-property-any start end | |
279 | 'w3m-href-anchor nil) | |
280 | end)) | |
281 | (put-text-property start next 'keymap map)) | |
282 | (setq next (or (text-property-not-all start end | |
283 | 'w3m-href-anchor nil) | |
284 | end)) | |
285 | (put-text-property start next 'keymap w3m-minor-mode-map)) | |
286 | (setq start next | |
287 | on (not on)))) | |
288 | (put-text-property (point-min) (point-max) | |
289 | 'keymap w3m-minor-mode-map))) | |
58090a8d MB |
290 | (mm-handle-set-undisplayer |
291 | handle | |
292 | `(lambda () | |
01c52d31 | 293 | (let ((inhibit-read-only t)) |
58090a8d MB |
294 | (delete-region ,(point-min-marker) |
295 | ,(point-max-marker))))))))) | |
23f87bed | 296 | |
7347faa8 MB |
297 | (defvar mm-w3m-standalone-supports-m17n-p (if (featurep 'mule) 'undecided) |
298 | "*T means the w3m command supports the m17n feature.") | |
299 | ||
300 | (defun mm-w3m-standalone-supports-m17n-p () | |
301 | "Say whether the w3m command supports the m17n feature." | |
302 | (cond ((eq mm-w3m-standalone-supports-m17n-p t) t) | |
303 | ((eq mm-w3m-standalone-supports-m17n-p nil) nil) | |
304 | ((not (featurep 'mule)) (setq mm-w3m-standalone-supports-m17n-p nil)) | |
305 | ((condition-case nil | |
306 | (let ((coding-system-for-write 'iso-2022-jp) | |
307 | (coding-system-for-read 'iso-2022-jp) | |
308 | (str (mm-decode-coding-string "\ | |
8f7abae3 | 309 | \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 |
310 | (mm-with-multibyte-buffer |
311 | (insert str) | |
312 | (call-process-region | |
313 | (point-min) (point-max) "w3m" t t nil "-dump" | |
314 | "-T" "text/html" "-I" "iso-2022-jp" "-O" "iso-2022-jp") | |
315 | (goto-char (point-min)) | |
316 | (search-forward str nil t))) | |
317 | (error nil)) | |
318 | (setq mm-w3m-standalone-supports-m17n-p t)) | |
319 | (t | |
320 | ;;(message "You had better upgrade your w3m command") | |
321 | (setq mm-w3m-standalone-supports-m17n-p nil)))) | |
322 | ||
73043f7d MB |
323 | (defun mm-inline-text-html-render-with-w3m-standalone (handle) |
324 | "Render a text/html part using w3m." | |
7347faa8 MB |
325 | (if (mm-w3m-standalone-supports-m17n-p) |
326 | (let ((source (mm-get-part handle)) | |
6b554e88 MB |
327 | (charset (or (mail-content-type-get (mm-handle-type handle) |
328 | 'charset) | |
329 | (symbol-name mail-parse-charset))) | |
7347faa8 MB |
330 | cs) |
331 | (unless (and charset | |
332 | (setq cs (mm-charset-to-coding-system charset)) | |
333 | (not (eq cs 'ascii))) | |
334 | ;; The default. | |
335 | (setq charset "iso-8859-1" | |
336 | cs 'iso-8859-1)) | |
337 | (mm-insert-inline | |
338 | handle | |
339 | (mm-with-unibyte-buffer | |
340 | (insert source) | |
341 | (mm-enable-multibyte) | |
342 | (let ((coding-system-for-write 'binary) | |
343 | (coding-system-for-read cs)) | |
344 | (call-process-region | |
345 | (point-min) (point-max) | |
346 | "w3m" t t nil "-dump" "-T" "text/html" | |
347 | "-I" charset "-O" charset)) | |
348 | (buffer-string)))) | |
349 | (mm-inline-render-with-stdin handle nil "w3m" "-dump" "-T" "text/html"))) | |
73043f7d | 350 | |
23f87bed MB |
351 | (defun mm-links-remove-leading-blank () |
352 | ;; Delete the annoying three spaces preceding each line of links | |
353 | ;; output. | |
354 | (goto-char (point-min)) | |
355 | (while (re-search-forward "^ " nil t) | |
356 | (delete-region (match-beginning 0) (match-end 0)))) | |
357 | ||
358 | (defun mm-inline-wash-with-file (post-func cmd &rest args) | |
359 | (let ((file (mm-make-temp-file | |
360 | (expand-file-name "mm" mm-tmp-directory)))) | |
361 | (let ((coding-system-for-write 'binary)) | |
362 | (write-region (point-min) (point-max) file nil 'silent)) | |
363 | (delete-region (point-min) (point-max)) | |
364 | (unwind-protect | |
365 | (apply 'call-process cmd nil t nil (mapcar 'eval args)) | |
366 | (delete-file file)) | |
367 | (and post-func (funcall post-func)))) | |
368 | ||
369 | (defun mm-inline-wash-with-stdin (post-func cmd &rest args) | |
370 | (let ((coding-system-for-write 'binary)) | |
371 | (apply 'call-process-region (point-min) (point-max) | |
372 | cmd t t nil args)) | |
373 | (and post-func (funcall post-func))) | |
374 | ||
375 | (defun mm-inline-render-with-file (handle post-func cmd &rest args) | |
376 | (let ((source (mm-get-part handle))) | |
377 | (mm-insert-inline | |
378 | handle | |
379 | (mm-with-unibyte-buffer | |
380 | (insert source) | |
381 | (apply 'mm-inline-wash-with-file post-func cmd args) | |
382 | (buffer-string))))) | |
383 | ||
384 | (defun mm-inline-render-with-stdin (handle post-func cmd &rest args) | |
385 | (let ((source (mm-get-part handle))) | |
386 | (mm-insert-inline | |
387 | handle | |
388 | (mm-with-unibyte-buffer | |
389 | (insert source) | |
390 | (apply 'mm-inline-wash-with-stdin post-func cmd args) | |
391 | (buffer-string))))) | |
392 | ||
393 | (defun mm-inline-render-with-function (handle func &rest args) | |
394 | (let ((source (mm-get-part handle)) | |
6b554e88 MB |
395 | (charset (or (mail-content-type-get (mm-handle-type handle) 'charset) |
396 | mail-parse-charset))) | |
23f87bed MB |
397 | (mm-insert-inline |
398 | handle | |
399 | (mm-with-multibyte-buffer | |
400 | (insert (if charset | |
401 | (mm-decode-string source charset) | |
402 | source)) | |
403 | (apply func args) | |
404 | (buffer-string))))) | |
405 | ||
406 | (defun mm-inline-text-html (handle) | |
407 | (let* ((func (or mm-inline-text-html-renderer mm-text-html-renderer)) | |
408 | (entry (assq func mm-text-html-renderer-alist)) | |
3d2440b4 | 409 | (inhibit-read-only t)) |
23f87bed MB |
410 | (if entry |
411 | (setq func (cdr entry))) | |
412 | (cond | |
413 | ((functionp func) | |
414 | (funcall func handle)) | |
c113de23 | 415 | (t |
23f87bed MB |
416 | (apply (car func) handle (cdr func)))))) |
417 | ||
418 | (defun mm-inline-text-vcard (handle) | |
3d2440b4 | 419 | (let ((inhibit-read-only t)) |
23f87bed MB |
420 | (mm-insert-inline |
421 | handle | |
422 | (concat "\n-- \n" | |
423 | (ignore-errors | |
424 | (if (fboundp 'vcard-pretty-print) | |
425 | (vcard-pretty-print (mm-get-part handle)) | |
426 | (vcard-format-string | |
427 | (vcard-parse-string (mm-get-part handle) | |
428 | 'vcard-standard-filter)))))))) | |
429 | ||
430 | (defun mm-inline-text (handle) | |
431 | (let ((b (point)) | |
432 | (type (mm-handle-media-subtype handle)) | |
433 | (charset (mail-content-type-get | |
434 | (mm-handle-type handle) 'charset)) | |
3d2440b4 | 435 | (inhibit-read-only t)) |
23f87bed MB |
436 | (if (or (eq charset 'gnus-decoded) |
437 | ;; This is probably not entirely correct, but | |
438 | ;; makes rfc822 parts with embedded multiparts work. | |
439 | (eq mail-parse-charset 'gnus-decoded)) | |
c113de23 | 440 | (save-restriction |
23f87bed MB |
441 | (narrow-to-region (point) (point)) |
442 | (mm-insert-part handle) | |
443 | (goto-char (point-max))) | |
444 | (insert (mm-decode-string (mm-get-part handle) charset))) | |
5f4264e5 MB |
445 | (when (and mm-fill-flowed |
446 | (equal type "plain") | |
23f87bed MB |
447 | (equal (cdr (assoc 'format (mm-handle-type handle))) |
448 | "flowed")) | |
449 | (save-restriction | |
450 | (narrow-to-region b (point)) | |
451 | (goto-char b) | |
01c52d31 MB |
452 | (fill-flowed nil (equal (cdr (assoc 'delsp (mm-handle-type handle))) |
453 | "yes")) | |
23f87bed MB |
454 | (goto-char (point-max)))) |
455 | (save-restriction | |
456 | (narrow-to-region b (point)) | |
3d2440b4 SM |
457 | (when (member type '("enriched" "richtext")) |
458 | (set-text-properties (point-min) (point-max) nil) | |
23f87bed MB |
459 | (ignore-errors |
460 | (enriched-decode (point-min) (point-max)))) | |
461 | (mm-handle-set-undisplayer | |
462 | handle | |
463 | `(lambda () | |
3d2440b4 | 464 | (let ((inhibit-read-only t)) |
23f87bed MB |
465 | (delete-region ,(point-min-marker) |
466 | ,(point-max-marker)))))))) | |
c113de23 GM |
467 | |
468 | (defun mm-insert-inline (handle text) | |
469 | "Insert TEXT inline from HANDLE." | |
23f87bed | 470 | (let ((b (point))) |
c113de23 | 471 | (insert text) |
01c52d31 MB |
472 | (unless (bolp) |
473 | (insert "\n")) | |
c113de23 GM |
474 | (mm-handle-set-undisplayer |
475 | handle | |
476 | `(lambda () | |
3d2440b4 SM |
477 | (let ((inhibit-read-only t)) |
478 | (delete-region ,(copy-marker b) | |
479 | ,(copy-marker (point)))))))) | |
c113de23 GM |
480 | |
481 | (defun mm-inline-audio (handle) | |
482 | (message "Not implemented")) | |
483 | ||
484 | (defun mm-view-sound-file () | |
485 | (message "Not implemented")) | |
486 | ||
487 | (defun mm-w3-prepare-buffer () | |
488 | (require 'w3) | |
6833e8ba | 489 | (let ((url-standalone-mode t) |
23f87bed MB |
490 | (url-gateway-unplugged t) |
491 | (w3-honor-stylesheets nil)) | |
c113de23 GM |
492 | (w3-prepare-buffer))) |
493 | ||
494 | (defun mm-view-message () | |
495 | (mm-enable-multibyte) | |
496 | (let (handles) | |
497 | (let (gnus-article-mime-handles) | |
498 | ;; Double decode problem may happen. See mm-inline-message. | |
499 | (run-hooks 'gnus-article-decode-hook) | |
500 | (gnus-article-prepare-display) | |
501 | (setq handles gnus-article-mime-handles)) | |
502 | (when handles | |
503 | (setq gnus-article-mime-handles | |
23f87bed | 504 | (mm-merge-handles gnus-article-mime-handles handles)))) |
c113de23 GM |
505 | (fundamental-mode) |
506 | (goto-char (point-min))) | |
507 | ||
508 | (defun mm-inline-message (handle) | |
509 | (let ((b (point)) | |
4e728580 | 510 | (bolp (bolp)) |
c113de23 GM |
511 | (charset (mail-content-type-get |
512 | (mm-handle-type handle) 'charset)) | |
513 | gnus-displaying-mime handles) | |
514 | (when (and charset | |
515 | (stringp charset)) | |
516 | (setq charset (intern (downcase charset))) | |
517 | (when (eq charset 'us-ascii) | |
518 | (setq charset nil))) | |
519 | (save-excursion | |
520 | (save-restriction | |
521 | (narrow-to-region b b) | |
522 | (mm-insert-part handle) | |
523 | (let (gnus-article-mime-handles | |
4e728580 SZ |
524 | ;; disable prepare hook |
525 | gnus-article-prepare-hook | |
c113de23 | 526 | (gnus-newsgroup-charset |
34128042 MB |
527 | (unless (eq charset 'gnus-decoded) ;; mm-uu might set it. |
528 | (or charset gnus-newsgroup-charset)))) | |
23f87bed MB |
529 | (let ((gnus-original-article-buffer (mm-handle-buffer handle))) |
530 | (run-hooks 'gnus-article-decode-hook)) | |
c113de23 GM |
531 | (gnus-article-prepare-display) |
532 | (setq handles gnus-article-mime-handles)) | |
4e728580 SZ |
533 | (goto-char (point-min)) |
534 | (unless bolp | |
535 | (insert "\n")) | |
c113de23 GM |
536 | (goto-char (point-max)) |
537 | (unless (bolp) | |
538 | (insert "\n")) | |
539 | (insert "----------\n\n") | |
540 | (when handles | |
541 | (setq gnus-article-mime-handles | |
23f87bed | 542 | (mm-merge-handles gnus-article-mime-handles handles))) |
c113de23 GM |
543 | (mm-handle-set-undisplayer |
544 | handle | |
545 | `(lambda () | |
3d2440b4 | 546 | (let ((inhibit-read-only t)) |
722a8409 | 547 | (if (fboundp 'remove-specifier) |
c113de23 | 548 | ;; This is only valid on XEmacs. |
3d2440b4 SM |
549 | (dolist (prop '(background background-pixmap foreground)) |
550 | (remove-specifier | |
551 | (face-property 'default prop) (current-buffer)))) | |
c113de23 GM |
552 | (delete-region ,(point-min-marker) ,(point-max-marker))))))))) |
553 | ||
ce9401f3 | 554 | (defun mm-display-inline-fontify (handle mode) |
01c52d31 MB |
555 | (let ((charset (mail-content-type-get (mm-handle-type handle) 'charset)) |
556 | text coding-system) | |
557 | (unless (eq charset 'gnus-decoded) | |
558 | (mm-with-unibyte-buffer | |
559 | (mm-insert-part handle) | |
560 | (mm-decompress-buffer | |
561 | (or (mail-content-type-get (mm-handle-disposition handle) 'name) | |
562 | (mail-content-type-get (mm-handle-disposition handle) 'filename)) | |
563 | t t) | |
564 | (unless charset | |
565 | (setq coding-system (mm-find-buffer-file-coding-system))) | |
566 | (setq text (buffer-string)))) | |
23f87bed MB |
567 | ;; XEmacs @#$@ version of font-lock refuses to fully turn itself |
568 | ;; on for buffers whose name begins with " ". That's why we use | |
01c52d31 MB |
569 | ;; `with-current-buffer'/`generate-new-buffer' rather than |
570 | ;; `with-temp-buffer'. | |
571 | (with-current-buffer (generate-new-buffer "*fontification*") | |
572 | (buffer-disable-undo) | |
573 | (mm-enable-multibyte) | |
574 | (insert (cond ((eq charset 'gnus-decoded) | |
575 | (with-current-buffer (mm-handle-buffer handle) | |
576 | (buffer-string))) | |
577 | (coding-system | |
578 | (mm-decode-coding-string text coding-system)) | |
579 | (charset | |
580 | (mm-decode-string text charset)) | |
581 | (t | |
582 | text))) | |
583 | (require 'font-lock) | |
584 | (let ((font-lock-maximum-size nil) | |
585 | ;; Disable support modes, e.g., jit-lock, lazy-lock, etc. | |
586 | (font-lock-mode-hook nil) | |
587 | (font-lock-support-mode nil) | |
588 | ;; I find font-lock a bit too verbose. | |
589 | (font-lock-verbose nil)) | |
590 | (funcall mode) | |
591 | ;; The mode function might have already turned on font-lock. | |
592 | (unless (symbol-value 'font-lock-mode) | |
593 | (font-lock-fontify-buffer))) | |
594 | ;; By default, XEmacs font-lock uses non-duplicable text | |
595 | ;; properties. This code forces all the text properties | |
596 | ;; to be copied along with the text. | |
9efa445f | 597 | (when (featurep 'xemacs) |
01c52d31 MB |
598 | (map-extents (lambda (ext ignored) |
599 | (set-extent-property ext 'duplicable t) | |
600 | nil) | |
601 | nil nil nil nil nil 'text-prop)) | |
602 | (setq text (buffer-string)) | |
603 | (kill-buffer (current-buffer))) | |
c113de23 GM |
604 | (mm-insert-inline handle text))) |
605 | ||
23f87bed MB |
606 | ;; Shouldn't these functions check whether the user even wants to use |
607 | ;; font-lock? At least under XEmacs, this fontification is pretty | |
608 | ;; much unconditional. Also, it would be nice to change for the size | |
609 | ;; of the fontified region. | |
610 | ||
ce9401f3 DL |
611 | (defun mm-display-patch-inline (handle) |
612 | (mm-display-inline-fontify handle 'diff-mode)) | |
613 | ||
614 | (defun mm-display-elisp-inline (handle) | |
615 | (mm-display-inline-fontify handle 'emacs-lisp-mode)) | |
616 | ||
01c52d31 MB |
617 | (defun mm-display-dns-inline (handle) |
618 | (mm-display-inline-fontify handle 'dns-mode)) | |
619 | ||
23f87bed MB |
620 | ;; id-signedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) |
621 | ;; us(840) rsadsi(113549) pkcs(1) pkcs7(7) 2 } | |
622 | (defvar mm-pkcs7-signed-magic | |
e52cac88 MB |
623 | "\x30\x5c\x28\x80\x5c\x7c\x81\x2e\x5c\x7c\x82\x2e\x2e\x5c\x7c\x83\x2e\x2e\ |
624 | \x2e\x5c\x29\x06\x09\x5c\x2a\x86\x48\x86\xf7\x0d\x01\x07\x02") | |
23f87bed MB |
625 | |
626 | ;; id-envelopedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) | |
627 | ;; us(840) rsadsi(113549) pkcs(1) pkcs7(7) 3 } | |
628 | (defvar mm-pkcs7-enveloped-magic | |
e52cac88 MB |
629 | "\x30\x5c\x28\x80\x5c\x7c\x81\x2e\x5c\x7c\x82\x2e\x2e\x5c\x7c\x83\x2e\x2e\ |
630 | \x2e\x5c\x29\x06\x09\x5c\x2a\x86\x48\x86\xf7\x0d\x01\x07\x03") | |
23f87bed MB |
631 | |
632 | (defun mm-view-pkcs7-get-type (handle) | |
633 | (mm-with-unibyte-buffer | |
634 | (mm-insert-part handle) | |
635 | (cond ((looking-at mm-pkcs7-enveloped-magic) | |
636 | 'enveloped) | |
637 | ((looking-at mm-pkcs7-signed-magic) | |
638 | 'signed) | |
639 | (t | |
640 | (error "Could not identify PKCS#7 type"))))) | |
641 | ||
642 | (defun mm-view-pkcs7 (handle) | |
643 | (case (mm-view-pkcs7-get-type handle) | |
644 | (enveloped (mm-view-pkcs7-decrypt handle)) | |
645 | (signed (mm-view-pkcs7-verify handle)) | |
646 | (otherwise (error "Unknown or unimplemented PKCS#7 type")))) | |
647 | ||
648 | (defun mm-view-pkcs7-verify (handle) | |
01c52d31 MB |
649 | (let ((verified nil)) |
650 | (with-temp-buffer | |
651 | (insert "MIME-Version: 1.0\n") | |
652 | (mm-insert-headers "application/pkcs7-mime" "base64" "smime.p7m") | |
653 | (insert-buffer-substring (mm-handle-buffer handle)) | |
654 | (setq verified (smime-verify-region (point-min) (point-max)))) | |
655 | (goto-char (point-min)) | |
656 | (mm-insert-part handle) | |
657 | (if (search-forward "Content-Type: " nil t) | |
658 | (delete-region (point-min) (match-beginning 0))) | |
659 | (goto-char (point-max)) | |
660 | (if (re-search-backward "--\r?\n?" nil t) | |
661 | (delete-region (match-end 0) (point-max))) | |
662 | (unless verified | |
663 | (insert-buffer-substring smime-details-buffer))) | |
23f87bed MB |
664 | (goto-char (point-min)) |
665 | (while (search-forward "\r\n" nil t) | |
666 | (replace-match "\n")) | |
23f87bed MB |
667 | t) |
668 | ||
23f87bed MB |
669 | (defun mm-view-pkcs7-decrypt (handle) |
670 | (insert-buffer-substring (mm-handle-buffer handle)) | |
671 | (goto-char (point-min)) | |
672 | (insert "MIME-Version: 1.0\n") | |
673 | (mm-insert-headers "application/pkcs7-mime" "base64" "smime.p7m") | |
674 | (smime-decrypt-region | |
675 | (point-min) (point-max) | |
676 | (if (= (length smime-keys) 1) | |
677 | (cadar smime-keys) | |
678 | (smime-get-key-by-email | |
01c52d31 | 679 | (completing-read |
81df110a | 680 | (concat "Decipher using key" |
01c52d31 | 681 | (if smime-keys (concat "(default " (caar smime-keys) "): ") |
81df110a | 682 | ": ")) |
23f87bed MB |
683 | smime-keys nil nil nil nil (car-safe (car-safe smime-keys)))))) |
684 | (goto-char (point-min)) | |
685 | (while (search-forward "\r\n" nil t) | |
686 | (replace-match "\n")) | |
687 | (goto-char (point-min))) | |
688 | ||
c113de23 GM |
689 | (provide 'mm-view) |
690 | ||
715a2ca2 | 691 | ;;; mm-view.el ends here |