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dda00b2c | 1 | ;;; mh-mime.el --- MH-E MIME support |
c26cf6c8 | 2 | |
e495eaec | 3 | ;; Copyright (C) 1993, 1995, |
d7a0267c | 4 | ;; 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
a1b4049d BW |
5 | |
6 | ;; Author: Bill Wohler <wohler@newt.com> | |
7 | ;; Maintainer: Bill Wohler <wohler@newt.com> | |
8 | ;; Keywords: mail | |
9 | ;; See: mh-e.el | |
c26cf6c8 | 10 | |
60370d40 | 11 | ;; This file is part of GNU Emacs. |
c26cf6c8 | 12 | |
9b7bc076 | 13 | ;; GNU Emacs is free software; you can redistribute it and/or modify |
c26cf6c8 | 14 | ;; it under the terms of the GNU General Public License as published by |
ceaeecb0 | 15 | ;; the Free Software Foundation; either version 3, or (at your option) |
c26cf6c8 RS |
16 | ;; any later version. |
17 | ||
9b7bc076 | 18 | ;; GNU Emacs is distributed in the hope that it will be useful, |
c26cf6c8 RS |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
b578f267 | 24 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
3a35cf56 LK |
25 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
26 | ;; Boston, MA 02110-1301, USA. | |
c26cf6c8 RS |
27 | |
28 | ;;; Commentary: | |
29 | ||
dda00b2c BW |
30 | ;; Message composition of MIME message is done with either MH-style |
31 | ;; directives for mhn or mhbuild (MH 6.8 or later) or MML (MIME Meta | |
32 | ;; Language) tags. | |
33 | ||
34 | ;; TODO: | |
35 | ;; Paragraph code should not fill # lines if MIME enabled. | |
36 | ;; Implement mh-auto-mh-to-mime (if non-nil, \\[mh-send-letter] | |
37 | ;; invokes mh-mh-to-mime automatically before sending.) | |
38 | ;; Actually, instead of mh-auto-mh-to-mime, | |
39 | ;; should read automhnproc from profile. | |
40 | ;; MIME option to mh-forward command to move to content-description | |
41 | ;; insertion point. | |
c26cf6c8 | 42 | |
847b8219 KH |
43 | ;;; Change Log: |
44 | ||
c26cf6c8 RS |
45 | ;;; Code: |
46 | ||
dda00b2c BW |
47 | (require 'mh-e) |
48 | (require 'mh-gnus) ;needed because mh-gnus.el not compiled | |
7094eefe | 49 | |
dda00b2c | 50 | (require 'font-lock) |
bdcfe844 | 51 | (require 'gnus-util) |
dda00b2c BW |
52 | (require 'mailcap) |
53 | (require 'mm-decode) | |
54 | (require 'mm-view) | |
55 | (require 'mml) | |
bdcfe844 | 56 | |
bdcfe844 | 57 | (autoload 'article-emphasize "gnus-art") |
bdcfe844 | 58 | (autoload 'gnus-eval-format "gnus-spec") |
dda00b2c BW |
59 | (autoload 'mail-content-type-get "mail-parse") |
60 | (autoload 'mail-decode-encoded-word-string "mail-parse") | |
61 | (autoload 'mail-header-parse-content-type "mail-parse") | |
62 | (autoload 'mail-header-strip "mail-parse") | |
bdcfe844 | 63 | (autoload 'message-options-set-recipient "message") |
dda00b2c | 64 | (autoload 'mm-decode-body "mm-bodies") |
1bea9ec4 | 65 | (autoload 'mm-uu-dissect "mm-uu") |
0c47b17c | 66 | (autoload 'mml-unsecure-message "mml-sec") |
924df208 | 67 | (autoload 'rfc2047-decode-region "rfc2047") |
0c47b17c | 68 | (autoload 'widget-convert-button "wid-edit") |
bdcfe844 | 69 | |
dda00b2c BW |
70 | \f |
71 | ||
72 | ;;; Variables | |
73 | ||
74 | ;; This has to be a macro, since we do: (setf (mh-buffer-data) ...) | |
c3d9274a | 75 | ;;;###mh-autoload |
dda00b2c BW |
76 | (defmacro mh-buffer-data () |
77 | "Convenience macro to get the MIME data structures of the current buffer." | |
78 | `(gethash (current-buffer) mh-globals-hash)) | |
79 | ||
80 | ;; Structure to keep track of MIME handles on a per buffer basis. | |
81 | (mh-defstruct (mh-buffer-data (:conc-name mh-mime-) | |
82 | (:constructor mh-make-buffer-data)) | |
83 | (handles ()) ; List of MIME handles | |
84 | (handles-cache (make-hash-table)) ; Cache to avoid multiple decodes of | |
85 | ; nested messages | |
86 | (parts-count 0) ; The button number is generated from | |
87 | ; this number | |
88 | (part-index-hash (make-hash-table))) ; Avoid incrementing the part number | |
89 | ; for nested messages | |
90 | ||
91 | (defvar mh-mm-inline-media-tests | |
92 | `(("image/jpeg" | |
93 | mm-inline-image | |
94 | (lambda (handle) | |
95 | (mm-valid-and-fit-image-p 'jpeg handle))) | |
96 | ("image/png" | |
97 | mm-inline-image | |
98 | (lambda (handle) | |
99 | (mm-valid-and-fit-image-p 'png handle))) | |
100 | ("image/gif" | |
101 | mm-inline-image | |
102 | (lambda (handle) | |
103 | (mm-valid-and-fit-image-p 'gif handle))) | |
104 | ("image/tiff" | |
105 | mm-inline-image | |
106 | (lambda (handle) | |
107 | (mm-valid-and-fit-image-p 'tiff handle)) ) | |
108 | ("image/xbm" | |
109 | mm-inline-image | |
110 | (lambda (handle) | |
111 | (mm-valid-and-fit-image-p 'xbm handle))) | |
112 | ("image/x-xbitmap" | |
113 | mm-inline-image | |
114 | (lambda (handle) | |
115 | (mm-valid-and-fit-image-p 'xbm handle))) | |
116 | ("image/xpm" | |
117 | mm-inline-image | |
118 | (lambda (handle) | |
119 | (mm-valid-and-fit-image-p 'xpm handle))) | |
120 | ("image/x-pixmap" | |
121 | mm-inline-image | |
122 | (lambda (handle) | |
123 | (mm-valid-and-fit-image-p 'xpm handle))) | |
124 | ("image/bmp" | |
125 | mm-inline-image | |
126 | (lambda (handle) | |
127 | (mm-valid-and-fit-image-p 'bmp handle))) | |
128 | ("image/x-portable-bitmap" | |
129 | mm-inline-image | |
130 | (lambda (handle) | |
131 | (mm-valid-and-fit-image-p 'pbm handle))) | |
132 | ("text/plain" mm-inline-text identity) | |
133 | ("text/enriched" mm-inline-text identity) | |
134 | ("text/richtext" mm-inline-text identity) | |
135 | ("text/x-patch" mm-display-patch-inline | |
136 | (lambda (handle) | |
137 | (locate-library "diff-mode"))) | |
138 | ("application/emacs-lisp" mm-display-elisp-inline identity) | |
139 | ("application/x-emacs-lisp" mm-display-elisp-inline identity) | |
140 | ("text/html" | |
141 | ,(if (fboundp 'mm-inline-text-html) 'mm-inline-text-html 'mm-inline-text) | |
142 | (lambda (handle) | |
143 | (or (and (boundp 'mm-inline-text-html-renderer) | |
144 | mm-inline-text-html-renderer) | |
145 | (and (boundp 'mm-text-html-renderer) mm-text-html-renderer)))) | |
146 | ("text/x-vcard" | |
06e7028b | 147 | mh-mm-inline-text-vcard |
dda00b2c BW |
148 | (lambda (handle) |
149 | (or (featurep 'vcard) | |
150 | (locate-library "vcard")))) | |
151 | ("message/delivery-status" mm-inline-text identity) | |
152 | ("message/rfc822" mh-mm-inline-message identity) | |
153 | ;;("message/partial" mm-inline-partial identity) | |
154 | ;;("message/external-body" mm-inline-external-body identity) | |
155 | ("text/.*" mm-inline-text identity) | |
156 | ("audio/wav" mm-inline-audio | |
157 | (lambda (handle) | |
158 | (and (or (featurep 'nas-sound) (featurep 'native-sound)) | |
159 | (device-sound-enabled-p)))) | |
160 | ("audio/au" | |
161 | mm-inline-audio | |
162 | (lambda (handle) | |
163 | (and (or (featurep 'nas-sound) (featurep 'native-sound)) | |
164 | (device-sound-enabled-p)))) | |
165 | ("application/pgp-signature" ignore identity) | |
166 | ("application/x-pkcs7-signature" ignore identity) | |
167 | ("application/pkcs7-signature" ignore identity) | |
168 | ("application/x-pkcs7-mime" ignore identity) | |
169 | ("application/pkcs7-mime" ignore identity) | |
170 | ("multipart/alternative" ignore identity) | |
171 | ("multipart/mixed" ignore identity) | |
172 | ("multipart/related" ignore identity) | |
173 | ;; Disable audio and image | |
174 | ("audio/.*" ignore ignore) | |
175 | ("image/.*" ignore ignore) | |
176 | ;; Default to displaying as text | |
06e7028b | 177 | (".*" mm-inline-text mh-mm-readable-p)) |
dda00b2c | 178 | "Alist of media types/tests saying whether types can be displayed inline.") |
0c47b17c | 179 | |
dda00b2c BW |
180 | (defvar mh-mime-save-parts-directory nil |
181 | "Default to use for `mh-mime-save-parts-default-directory'. | |
182 | Set from last use.") | |
2dcf34f9 | 183 | |
dda00b2c BW |
184 | ;; Copied from gnus-art.el (should be checked for other cool things that can |
185 | ;; be added to the buttons) | |
186 | (defvar mh-mime-button-commands | |
187 | '((mh-press-button "\r" "Toggle Display"))) | |
188 | (defvar mh-mime-button-map | |
189 | (let ((map (make-sparse-keymap))) | |
190 | (unless (>= (string-to-number emacs-version) 21) | |
191 | ;; XEmacs doesn't care. | |
192 | (set-keymap-parent map mh-show-mode-map)) | |
193 | (mh-do-in-gnu-emacs | |
194 | (define-key map [mouse-2] 'mh-push-button)) | |
195 | (mh-do-in-xemacs | |
196 | (define-key map '(button2) 'mh-push-button)) | |
197 | (dolist (c mh-mime-button-commands) | |
198 | (define-key map (cadr c) (car c))) | |
199 | map)) | |
200 | (defvar mh-mime-button-line-format-alist | |
201 | '((?T long-type ?s) | |
202 | (?d description ?s) | |
203 | (?p index ?s) | |
204 | (?e dots ?s))) | |
205 | (defvar mh-mime-button-line-format "%{%([%p. %d%T]%)%}%e\n") | |
206 | (defvar mh-mime-security-button-pressed nil) | |
207 | (defvar mh-mime-security-button-line-format "%{%([[%t:%i]%D]%)%}\n") | |
208 | (defvar mh-mime-security-button-end-line-format "%{%([[End of %t]%D]%)%}\n") | |
209 | (defvar mh-mime-security-button-line-format-alist | |
210 | '((?t type ?s) | |
211 | (?i info ?s) | |
212 | (?d details ?s) | |
213 | (?D pressed-details ?s))) | |
214 | (defvar mh-mime-security-button-map | |
215 | (let ((map (make-sparse-keymap))) | |
216 | (unless (>= (string-to-number emacs-version) 21) | |
217 | (set-keymap-parent map mh-show-mode-map)) | |
218 | (define-key map "\r" 'mh-press-button) | |
219 | (mh-do-in-gnu-emacs | |
220 | (define-key map [mouse-2] 'mh-push-button)) | |
221 | (mh-do-in-xemacs | |
222 | (define-key map '(button2) 'mh-push-button)) | |
223 | map)) | |
bdcfe844 | 224 | |
dda00b2c | 225 | \f |
2dcf34f9 | 226 | |
dda00b2c | 227 | ;;; MH-Folder Commands |
0c47b17c | 228 | |
dda00b2c | 229 | ;; Alphabetical. |
c26cf6c8 | 230 | |
dda00b2c BW |
231 | ;;;###mh-autoload |
232 | (defun mh-display-with-external-viewer (part-index) | |
233 | "View attachment externally. | |
c26cf6c8 | 234 | |
dda00b2c BW |
235 | If Emacs does not know how to view an attachment, you could save |
236 | it into a file and then run some program to open it. It is | |
237 | easier, however, to launch the program directly from MH-E with | |
238 | this command. While you'll most likely use this to view | |
239 | spreadsheets and documents, it is also useful to use your browser | |
240 | to view HTML attachments with higher fidelity than what Emacs can | |
241 | provide. | |
847b8219 | 242 | |
dda00b2c BW |
243 | This command displays the attachment associated with the button |
244 | under the cursor. If the cursor is not located over a button, | |
245 | then the cursor first moves to the next button, wrapping to the | |
246 | beginning of the message if necessary. You can provide a numeric | |
247 | prefix argument PART-INDEX to view the attachment labeled with | |
248 | that number. | |
bdcfe844 | 249 | |
dda00b2c BW |
250 | This command tries to provide a reasonable default for the viewer |
251 | by calling the Emacs function `mailcap-mime-info'. This function | |
252 | usually reads the file \"/etc/mailcap\"." | |
253 | (interactive "P") | |
254 | (when (consp part-index) (setq part-index (car part-index))) | |
255 | (mh-folder-mime-action | |
256 | part-index | |
257 | #'(lambda () | |
258 | (let* ((part (get-text-property (point) 'mh-data)) | |
259 | (type (mm-handle-media-type part)) | |
260 | (methods (mapcar (lambda (x) (list (cdr (assoc 'viewer x)))) | |
261 | (mailcap-mime-info type 'all))) | |
262 | (def (caar methods)) | |
263 | (prompt (format "Viewer%s: " (if def | |
264 | (format " (default %s)" def) | |
265 | ""))) | |
266 | (method (completing-read prompt methods nil nil nil nil def)) | |
267 | (folder mh-show-folder-buffer) | |
268 | (buffer-read-only nil)) | |
269 | (when (string-match "^[^% \t]+$" method) | |
270 | (setq method (concat method " %s"))) | |
271 | (flet ((mm-handle-set-external-undisplayer (handle function) | |
272 | (mh-handle-set-external-undisplayer folder handle function))) | |
273 | (unwind-protect (mm-display-external part method) | |
274 | (set-buffer-modified-p nil))))) | |
275 | nil)) | |
847b8219 | 276 | |
f0d73c14 | 277 | ;;;###mh-autoload |
dda00b2c BW |
278 | (defun mh-folder-inline-mime-part (part-index) |
279 | "Show attachment verbatim. | |
280 | ||
281 | You can view the raw contents of an attachment with this command. | |
282 | This command displays (or hides) the contents of the attachment | |
283 | associated with the button under the cursor verbatim. If the | |
284 | cursor is not located over a button, then the cursor first moves | |
285 | to the next button, wrapping to the beginning of the message if | |
286 | necessary. | |
287 | ||
288 | You can also provide a numeric prefix argument PART-INDEX to view | |
289 | the attachment labeled with that number." | |
290 | (interactive "P") | |
291 | (when (consp part-index) (setq part-index (car part-index))) | |
292 | (mh-folder-mime-action part-index #'mh-mime-inline-part nil)) | |
bdcfe844 | 293 | |
dda00b2c BW |
294 | (defun mh-mime-inline-part () |
295 | "Toggle display of the raw MIME part." | |
296 | (interactive) | |
297 | (let* ((buffer-read-only nil) | |
298 | (data (get-text-property (point) 'mh-data)) | |
299 | (inserted-flag (get-text-property (point) 'mh-mime-inserted)) | |
300 | (displayed-flag (mm-handle-displayed-p data)) | |
301 | (point (point)) | |
302 | start end) | |
303 | (cond ((and data (not inserted-flag) (not displayed-flag)) | |
304 | (let ((contents (mm-get-part data))) | |
d5dc8c56 BW |
305 | (add-text-properties (mh-line-beginning-position) |
306 | (mh-line-end-position) '(mh-mime-inserted t)) | |
dda00b2c BW |
307 | (setq start (point-marker)) |
308 | (forward-line 1) | |
309 | (mm-insert-inline data contents) | |
310 | (setq end (point-marker)) | |
311 | (add-text-properties | |
d5dc8c56 | 312 | start (progn (goto-char start) (mh-line-end-position)) |
dda00b2c BW |
313 | `(mh-region (,start . ,end))))) |
314 | ((and data (or inserted-flag displayed-flag)) | |
315 | (mh-press-button) | |
316 | (message "MIME part already inserted"))) | |
317 | (goto-char point) | |
318 | (set-buffer-modified-p nil))) | |
bdcfe844 | 319 | |
f0d73c14 | 320 | ;;;###mh-autoload |
dda00b2c BW |
321 | (defun mh-folder-save-mime-part (part-index) |
322 | "Save (output) attachment. | |
a1b4049d | 323 | |
dda00b2c BW |
324 | This command saves the attachment associated with the button under the |
325 | cursor. If the cursor is not located over a button, then the cursor | |
326 | first moves to the next button, wrapping to the beginning of the | |
327 | message if necessary. | |
a1b4049d | 328 | |
dda00b2c BW |
329 | You can also provide a numeric prefix argument PART-INDEX to save the |
330 | attachment labeled with that number. | |
f0d73c14 | 331 | |
dda00b2c BW |
332 | This command prompts you for a filename and suggests a specific name |
333 | if it is available." | |
334 | (interactive "P") | |
335 | (when (consp part-index) (setq part-index (car part-index))) | |
336 | (mh-folder-mime-action part-index #'mh-mime-save-part nil)) | |
0c47b17c | 337 | |
dda00b2c BW |
338 | (defun mh-mime-save-part () |
339 | "Save MIME part at point." | |
340 | (interactive) | |
341 | (let ((data (get-text-property (point) 'mh-data))) | |
342 | (when data | |
343 | (let ((mm-default-directory | |
344 | (file-name-as-directory (or mh-mime-save-parts-directory | |
345 | default-directory)))) | |
346 | (mh-mm-save-part data) | |
347 | (setq mh-mime-save-parts-directory mm-default-directory))))) | |
c26cf6c8 | 348 | |
dda00b2c BW |
349 | ;;;###mh-autoload |
350 | (defun mh-folder-toggle-mime-part (part-index) | |
351 | "View attachment. | |
352 | ||
353 | This command displays (or hides) the attachment associated with | |
354 | the button under the cursor. If the cursor is not located over a | |
355 | button, then the cursor first moves to the next button, wrapping | |
356 | to the beginning of the message if necessary. This command has | |
357 | the advantage over related commands of working from the MH-Folder | |
358 | buffer. | |
359 | ||
360 | You can also provide a numeric prefix argument PART-INDEX to view | |
361 | the attachment labeled with that number. If Emacs does not know | |
362 | how to display the attachment, then Emacs offers to save the | |
363 | attachment in a file." | |
364 | (interactive "P") | |
365 | (when (consp part-index) (setq part-index (car part-index))) | |
366 | (mh-folder-mime-action part-index #'mh-press-button t)) | |
c26cf6c8 | 367 | |
c3d9274a | 368 | ;;;###mh-autoload |
dda00b2c BW |
369 | (defun mh-mime-save-parts (prompt) |
370 | "Save attachments. | |
af435184 | 371 | |
dda00b2c BW |
372 | You can save all of the attachments at once with this command. |
373 | The attachments are saved in the directory specified by the | |
374 | option `mh-mime-save-parts-default-directory' unless you use a | |
375 | prefix argument PROMPT in which case you are prompted for the | |
376 | directory. These directories may be superseded by MH profile | |
377 | components, since this function calls on \"mhstore\" (\"mhn\") to | |
378 | do the work." | |
379 | (interactive "P") | |
380 | (let ((msg (if (eq major-mode 'mh-show-mode) | |
381 | (mh-show-buffer-message-number) | |
382 | (mh-get-msg-num t))) | |
383 | (folder (if (eq major-mode 'mh-show-mode) | |
384 | mh-show-folder-buffer | |
385 | mh-current-folder)) | |
386 | (command (if (mh-variant-p 'nmh) "mhstore" "mhn")) | |
387 | (directory | |
388 | (cond | |
389 | ((and (or prompt | |
390 | (equal nil mh-mime-save-parts-default-directory) | |
391 | (equal t mh-mime-save-parts-default-directory)) | |
392 | (not mh-mime-save-parts-directory)) | |
393 | (read-file-name "Store in directory: " nil nil t nil)) | |
394 | ((and (or prompt | |
395 | (equal t mh-mime-save-parts-default-directory)) | |
396 | mh-mime-save-parts-directory) | |
397 | (read-file-name (format | |
398 | "Store in directory (default %s): " | |
399 | mh-mime-save-parts-directory) | |
400 | "" mh-mime-save-parts-directory t "")) | |
401 | ((stringp mh-mime-save-parts-default-directory) | |
402 | mh-mime-save-parts-default-directory) | |
403 | (t | |
404 | mh-mime-save-parts-directory)))) | |
405 | (if (and (equal directory "") mh-mime-save-parts-directory) | |
406 | (setq directory mh-mime-save-parts-directory)) | |
407 | (if (not (file-directory-p directory)) | |
408 | (message "No directory specified") | |
409 | (if (equal nil mh-mime-save-parts-default-directory) | |
410 | (setq mh-mime-save-parts-directory directory)) | |
411 | (save-excursion | |
412 | (set-buffer (get-buffer-create mh-log-buffer)) | |
413 | (cd directory) | |
414 | (setq mh-mime-save-parts-directory directory) | |
415 | (let ((initial-size (mh-truncate-log-buffer))) | |
416 | (apply 'call-process | |
417 | (expand-file-name command mh-progs) nil t nil | |
e0487df8 BW |
418 | (mh-list-to-string (list folder msg "-auto" |
419 | (if (not (mh-variant-p 'nmh)) | |
420 | "-store")))) | |
dda00b2c BW |
421 | (if (> (buffer-size) initial-size) |
422 | (save-window-excursion | |
423 | (switch-to-buffer-other-window mh-log-buffer) | |
424 | (sit-for 3)))))))) | |
bdcfe844 | 425 | |
dda00b2c BW |
426 | ;;;###mh-autoload |
427 | (defun mh-toggle-mh-decode-mime-flag () | |
428 | "Toggle the value of `mh-decode-mime-flag'." | |
429 | (interactive) | |
430 | (setq mh-decode-mime-flag (not mh-decode-mime-flag)) | |
431 | (mh-show nil t) | |
432 | (message "%s" (if mh-decode-mime-flag | |
433 | "Processing attachments normally" | |
434 | "Displaying raw message"))) | |
c26cf6c8 | 435 | |
c3d9274a | 436 | ;;;###mh-autoload |
dda00b2c BW |
437 | (defun mh-toggle-mime-buttons () |
438 | "Toggle option `mh-display-buttons-for-inline-parts-flag'." | |
439 | (interactive) | |
440 | (setq mh-display-buttons-for-inline-parts-flag | |
441 | (not mh-display-buttons-for-inline-parts-flag)) | |
442 | (mh-show nil t)) | |
af435184 | 443 | |
dda00b2c | 444 | \f |
0c47b17c | 445 | |
dda00b2c BW |
446 | ;;; MIME Display Routines |
447 | ||
448 | (defun mh-mm-inline-message (handle) | |
449 | "Display message, HANDLE. | |
450 | The function decodes the message and displays it. It avoids | |
451 | decoding the same message multiple times." | |
452 | (let ((b (point)) | |
453 | (clean-message-header mh-clean-message-header-flag) | |
454 | (invisible-headers mh-invisible-header-fields-compiled) | |
455 | (visible-headers nil)) | |
456 | (save-excursion | |
457 | (save-restriction | |
458 | (narrow-to-region b b) | |
459 | (mm-insert-part handle) | |
460 | (mh-mime-display | |
461 | (or (gethash handle (mh-mime-handles-cache (mh-buffer-data))) | |
462 | (setf (gethash handle (mh-mime-handles-cache (mh-buffer-data))) | |
463 | (let ((handles (mm-dissect-buffer nil))) | |
464 | (if handles | |
06e7028b | 465 | (mh-mm-uu-dissect-text-parts handles) |
dda00b2c BW |
466 | (setq handles (mm-uu-dissect))) |
467 | (setf (mh-mime-handles (mh-buffer-data)) | |
06e7028b | 468 | (mh-mm-merge-handles |
dda00b2c BW |
469 | handles (mh-mime-handles (mh-buffer-data)))) |
470 | handles)))) | |
471 | ||
472 | (goto-char (point-min)) | |
473 | (mh-show-xface) | |
474 | (cond (clean-message-header | |
475 | (mh-clean-msg-header (point-min) | |
476 | invisible-headers | |
477 | visible-headers) | |
478 | (goto-char (point-min))) | |
479 | (t | |
480 | (mh-start-of-uncleaned-message))) | |
481 | (mh-decode-message-header) | |
482 | (mh-show-addr) | |
483 | ;; The other highlighting types don't need anything special | |
484 | (when (eq mh-highlight-citation-style 'gnus) | |
485 | (mh-gnus-article-highlight-citation)) | |
486 | (goto-char (point-min)) | |
487 | (insert "\n------- Forwarded Message\n\n") | |
488 | (mh-display-smileys) | |
489 | (mh-display-emphasis) | |
490 | (mm-handle-set-undisplayer | |
491 | handle | |
492 | `(lambda () | |
493 | (let (buffer-read-only) | |
494 | (if (fboundp 'remove-specifier) | |
495 | ;; This is only valid on XEmacs. | |
496 | (mapcar (lambda (prop) | |
497 | (remove-specifier | |
498 | (face-property 'default prop) (current-buffer))) | |
499 | '(background background-pixmap foreground))) | |
500 | (delete-region ,(point-min-marker) ,(point-max-marker))))))))) | |
c26cf6c8 | 501 | |
f0d73c14 | 502 | ;;;###mh-autoload |
dda00b2c BW |
503 | (defun mh-decode-message-header () |
504 | "Decode RFC2047 encoded message header fields." | |
505 | (when mh-decode-mime-flag | |
506 | (let ((buffer-read-only nil)) | |
507 | (rfc2047-decode-region (point-min) (mh-mail-header-end))))) | |
af435184 | 508 | |
dda00b2c BW |
509 | ;;;###mh-autoload |
510 | (defun mh-mime-display (&optional pre-dissected-handles) | |
511 | "Display (and possibly decode) MIME handles. | |
512 | Optional argument, PRE-DISSECTED-HANDLES is a list of MIME | |
513 | handles. If present they are displayed otherwise the buffer is | |
514 | parsed and then displayed." | |
515 | (let ((handles ()) | |
516 | (folder mh-show-folder-buffer) | |
517 | (raw-message-data (buffer-string))) | |
518 | (flet ((mm-handle-set-external-undisplayer | |
519 | (handle function) | |
520 | (mh-handle-set-external-undisplayer folder handle function))) | |
521 | (goto-char (point-min)) | |
522 | (unless (search-forward "\n\n" nil t) | |
523 | (goto-char (point-max)) | |
524 | (insert "\n\n")) | |
0c47b17c | 525 | |
dda00b2c BW |
526 | (condition-case err |
527 | (progn | |
528 | ;; If needed dissect the current buffer | |
529 | (if pre-dissected-handles | |
530 | (setq handles pre-dissected-handles) | |
531 | (if (setq handles (mm-dissect-buffer nil)) | |
06e7028b | 532 | (mh-mm-uu-dissect-text-parts handles) |
dda00b2c BW |
533 | (setq handles (mm-uu-dissect))) |
534 | (setf (mh-mime-handles (mh-buffer-data)) | |
06e7028b BW |
535 | (mh-mm-merge-handles handles |
536 | (mh-mime-handles (mh-buffer-data)))) | |
dda00b2c BW |
537 | (unless handles |
538 | (mh-decode-message-body))) | |
0c47b17c | 539 | |
dda00b2c BW |
540 | (cond ((and handles |
541 | (or (not (stringp (car handles))) | |
542 | (cdr handles))) | |
543 | ;; Go to start of message body | |
544 | (goto-char (point-min)) | |
545 | (or (search-forward "\n\n" nil t) | |
546 | (goto-char (point-max))) | |
0c47b17c | 547 | |
dda00b2c BW |
548 | ;; Delete the body |
549 | (delete-region (point) (point-max)) | |
0c47b17c | 550 | |
dda00b2c BW |
551 | ;; Display the MIME handles |
552 | (mh-mime-display-part handles)) | |
553 | (t | |
554 | (mh-signature-highlight)))) | |
555 | (error | |
556 | (message "Could not display body: %s" (error-message-string err)) | |
557 | (delete-region (point-min) (point-max)) | |
558 | (insert raw-message-data)))))) | |
c26cf6c8 | 559 | |
dda00b2c BW |
560 | (defun mh-decode-message-body () |
561 | "Decode message based on charset. | |
562 | If message has been encoded for transfer take that into account." | |
563 | (let (ct charset cte) | |
f0d73c14 | 564 | (goto-char (point-min)) |
dda00b2c BW |
565 | (re-search-forward "\n\n" nil t) |
566 | (save-restriction | |
567 | (narrow-to-region (point-min) (point)) | |
568 | (setq ct (ignore-errors (mail-header-parse-content-type | |
569 | (message-fetch-field "Content-Type" t))) | |
570 | charset (mail-content-type-get ct 'charset) | |
571 | cte (message-fetch-field "Content-Transfer-Encoding"))) | |
572 | (when (stringp cte) (setq cte (mail-header-strip cte))) | |
573 | (when (or (not ct) (equal (car ct) "text/plain")) | |
574 | (save-restriction | |
575 | (narrow-to-region (min (1+ (mh-mail-header-end)) (point-max)) | |
576 | (point-max)) | |
577 | (mm-decode-body charset | |
578 | (and cte (intern (downcase | |
579 | (gnus-strip-whitespace cte)))) | |
580 | (car ct)))))) | |
f0d73c14 | 581 | |
dda00b2c BW |
582 | (defun mh-mime-display-part (handle) |
583 | "Decides the viewer to call based on the type of HANDLE." | |
584 | (cond ((null handle) | |
585 | nil) | |
586 | ((not (stringp (car handle))) | |
587 | (mh-mime-display-single handle)) | |
588 | ((equal (car handle) "multipart/alternative") | |
589 | (mh-mime-display-alternative (cdr handle))) | |
590 | ((and mh-pgp-support-flag | |
591 | (or (equal (car handle) "multipart/signed") | |
592 | (equal (car handle) "multipart/encrypted"))) | |
593 | (mh-mime-display-security handle)) | |
594 | (t | |
595 | (mh-mime-display-mixed (cdr handle))))) | |
af435184 | 596 | |
dda00b2c BW |
597 | (defun mh-mime-display-mixed (handles) |
598 | "Display the list of MIME parts, HANDLES recursively." | |
599 | (mapcar #'mh-mime-display-part handles)) | |
60370d40 | 600 | |
dda00b2c BW |
601 | (defun mh-mime-display-alternative (handles) |
602 | "Choose among the alternatives, HANDLES the part that will be displayed. | |
603 | If no part is preferred then all the parts are displayed." | |
604 | (let* ((preferred (mm-preferred-alternative handles)) | |
605 | (others (loop for x in handles unless (eq x preferred) collect x))) | |
606 | (cond ((and preferred | |
607 | (stringp (car preferred))) | |
608 | (mh-mime-display-part preferred) | |
609 | (mh-mime-maybe-display-alternatives others)) | |
610 | (preferred | |
611 | (save-restriction | |
612 | (narrow-to-region (point) (if (eobp) (point) (1+ (point)))) | |
613 | (mh-mime-display-single preferred) | |
614 | (mh-mime-maybe-display-alternatives others) | |
615 | (goto-char (point-max)))) | |
616 | (t | |
617 | (mh-mime-display-mixed handles))))) | |
924df208 | 618 | |
dda00b2c BW |
619 | (defun mh-mime-maybe-display-alternatives (alternatives) |
620 | "Show buttons for ALTERNATIVES. | |
621 | If `mh-mime-display-alternatives-flag' is non-nil then display | |
622 | buttons for alternative parts that are usually suppressed." | |
623 | (when (and mh-display-buttons-for-alternatives-flag alternatives) | |
624 | (insert "\n----------------------------------------------------\n") | |
625 | (insert "Alternatives:\n") | |
626 | (dolist (x alternatives) | |
627 | (insert "\n") | |
628 | (mh-insert-mime-button x (mh-mime-part-index x) nil)) | |
629 | (insert "\n----------------------------------------------------\n"))) | |
bdcfe844 | 630 | |
dda00b2c BW |
631 | (defun mh-mime-display-security (handle) |
632 | "Display PGP encrypted/signed message, HANDLE." | |
633 | (save-restriction | |
634 | (narrow-to-region (point) (point)) | |
635 | (insert "\n") | |
636 | (mh-insert-mime-security-button handle) | |
637 | (mh-mime-display-mixed (cdr handle)) | |
638 | (insert "\n") | |
639 | (let ((mh-mime-security-button-line-format | |
640 | mh-mime-security-button-end-line-format)) | |
641 | (mh-insert-mime-security-button handle)) | |
06e7028b | 642 | (mh-mm-set-handle-multipart-parameter |
dda00b2c | 643 | handle 'mh-region (cons (point-min-marker) (point-max-marker))))) |
bdcfe844 | 644 | |
dda00b2c BW |
645 | (defun mh-mime-display-single (handle) |
646 | "Display a leaf node, HANDLE in the MIME tree." | |
647 | (let* ((type (mm-handle-media-type handle)) | |
648 | (small-image-flag (mh-small-image-p handle)) | |
649 | (attachmentp (equal (car (mm-handle-disposition handle)) | |
650 | "attachment")) | |
651 | (inlinep (and (equal (car (mm-handle-disposition handle)) "inline") | |
652 | (mm-inlinable-p handle) | |
653 | (mm-inlined-p handle))) | |
654 | (displayp (or inlinep ; show if inline OR | |
655 | (mh-inline-vcard-p handle); inline vcard OR | |
656 | (and (not attachmentp) ; if not an attachment | |
657 | (or small-image-flag ; and small image | |
658 | ; and user wants inline | |
659 | (and (not (equal | |
660 | (mm-handle-media-supertype handle) | |
661 | "image")) | |
662 | (mm-inlinable-p handle) | |
663 | (mm-inlined-p handle))))))) | |
664 | (save-restriction | |
665 | (narrow-to-region (point) (if (eobp) (point) (1+ (point)))) | |
666 | (cond ((and mh-pgp-support-flag | |
667 | (equal type "application/pgp-signature")) | |
668 | nil) ; skip signatures as they are already handled... | |
669 | ((not displayp) | |
670 | (insert "\n") | |
671 | (mh-insert-mime-button handle (mh-mime-part-index handle) nil)) | |
672 | ((and displayp | |
673 | (not mh-display-buttons-for-inline-parts-flag)) | |
674 | (or (mm-display-part handle) | |
675 | (mm-display-part handle)) | |
676 | (mh-signature-highlight handle)) | |
677 | ((and displayp | |
678 | mh-display-buttons-for-inline-parts-flag) | |
679 | (insert "\n") | |
680 | (mh-insert-mime-button handle (mh-mime-part-index handle) nil) | |
681 | (forward-line -1) | |
682 | (mh-mm-display-part handle))) | |
683 | (goto-char (point-max))))) | |
0c47b17c | 684 | |
dda00b2c BW |
685 | ;; There is a bug in Gnus inline image display due to which an extra line |
686 | ;; gets inserted every time it is viewed. To work around that problem we are | |
687 | ;; using an extra property 'mh-region to remember the region that is added | |
688 | ;; when the button is clicked. The region is then deleted to make sure that | |
689 | ;; no extra lines get inserted. | |
690 | (defun mh-mm-display-part (handle) | |
691 | "Toggle display of button for MIME part, HANDLE." | |
692 | (beginning-of-line) | |
693 | (let ((id (get-text-property (point) 'mh-part)) | |
694 | (point (point)) | |
695 | (window (selected-window)) | |
696 | (mail-parse-charset 'nil) | |
697 | (mail-parse-ignored-charsets nil) | |
698 | region buffer-read-only) | |
699 | (save-excursion | |
700 | (unwind-protect | |
701 | (let ((win (get-buffer-window (current-buffer) t))) | |
702 | (when win | |
703 | (select-window win)) | |
704 | (goto-char point) | |
bdcfe844 | 705 | |
dda00b2c BW |
706 | (if (mm-handle-displayed-p handle) |
707 | ;; This will remove the part. | |
708 | (progn | |
709 | ;; Delete the button and displayed part (if any) | |
710 | (let ((region (get-text-property point 'mh-region))) | |
711 | (when region | |
712 | (mh-funcall-if-exists | |
713 | remove-images (car region) (cdr region))) | |
714 | (mm-display-part handle) | |
715 | (when region | |
716 | (delete-region (car region) (cdr region)))) | |
717 | ;; Delete button (if it still remains). This happens for | |
718 | ;; externally displayed parts where the previous step does | |
719 | ;; nothing. | |
720 | (unless (eolp) | |
721 | (delete-region (point) (progn (forward-line) (point))))) | |
722 | (save-restriction | |
723 | (delete-region (point) (progn (forward-line 1) (point))) | |
724 | (narrow-to-region (point) (point)) | |
725 | ;; Maybe we need another unwind-protect here. | |
726 | (when (equal (mm-handle-media-supertype handle) "image") | |
727 | (insert "\n")) | |
728 | (when (and (not (eq (ignore-errors (mm-display-part handle)) | |
729 | 'inline)) | |
730 | (equal (mm-handle-media-supertype handle) | |
731 | "image")) | |
732 | (goto-char (point-min)) | |
733 | (delete-char 1)) | |
734 | (when (equal (mm-handle-media-supertype handle) "text") | |
735 | (when (eq mh-highlight-citation-style 'gnus) | |
736 | (mh-gnus-article-highlight-citation)) | |
737 | (mh-display-smileys) | |
738 | (mh-display-emphasis) | |
739 | (mh-signature-highlight handle)) | |
740 | (setq region (cons (progn (goto-char (point-min)) | |
741 | (point-marker)) | |
742 | (progn (goto-char (point-max)) | |
743 | (point-marker))))))) | |
744 | (when (window-live-p window) | |
745 | (select-window window)) | |
746 | (goto-char point) | |
747 | (beginning-of-line) | |
748 | (mh-insert-mime-button handle id (mm-handle-displayed-p handle)) | |
749 | (goto-char point) | |
750 | (when region | |
d5dc8c56 BW |
751 | (add-text-properties (mh-line-beginning-position) |
752 | (mh-line-end-position) | |
dda00b2c | 753 | `(mh-region ,region))))))) |
2dcf34f9 | 754 | |
dda00b2c BW |
755 | (defun mh-mime-part-index (handle) |
756 | "Generate the button number for MIME part, HANDLE. | |
757 | Notice that a hash table is used to display the same number when | |
758 | buttons need to be displayed multiple times (for instance when | |
759 | nested messages are opened)." | |
760 | (or (gethash handle (mh-mime-part-index-hash (mh-buffer-data))) | |
761 | (setf (gethash handle (mh-mime-part-index-hash (mh-buffer-data))) | |
762 | (incf (mh-mime-parts-count (mh-buffer-data)))))) | |
bdcfe844 | 763 | |
dda00b2c BW |
764 | (defun mh-small-image-p (handle) |
765 | "Decide whether HANDLE is a \"small\" image that can be displayed inline. | |
766 | This is only useful if a Content-Disposition header is not present." | |
767 | (let ((media-test (caddr (assoc (car (mm-handle-type handle)) | |
768 | mh-mm-inline-media-tests))) | |
769 | (mm-inline-large-images t)) | |
770 | (and media-test | |
771 | (equal (mm-handle-media-supertype handle) "image") | |
772 | (funcall media-test handle) ; Since mm-inline-large-images is T, | |
773 | ; this only tells us if the image is | |
774 | ; something that emacs can display | |
775 | (let* ((image (mm-get-image handle))) | |
776 | (or (mh-do-in-xemacs | |
777 | (and (mh-funcall-if-exists glyphp image) | |
778 | (< (glyph-width image) | |
779 | (or mh-max-inline-image-width (window-pixel-width))) | |
780 | (< (glyph-height image) | |
781 | (or mh-max-inline-image-height | |
782 | (window-pixel-height))))) | |
783 | (mh-do-in-gnu-emacs | |
784 | (let ((size (mh-funcall-if-exists image-size image))) | |
785 | (and size | |
786 | (< (cdr size) (or mh-max-inline-image-height | |
787 | (1- (window-height)))) | |
788 | (< (car size) (or mh-max-inline-image-width | |
789 | (window-width))))))))))) | |
f0d73c14 | 790 | |
dda00b2c BW |
791 | (defun mh-inline-vcard-p (handle) |
792 | "Decide if HANDLE is a vcard that must be displayed inline." | |
793 | (let ((type (mm-handle-type handle))) | |
794 | (and (or (featurep 'vcard) (fboundp 'vcard-pretty-print)) | |
795 | (consp type) | |
796 | (equal (car type) "text/x-vcard") | |
797 | (save-excursion | |
798 | (save-restriction | |
799 | (widen) | |
800 | (goto-char (point-min)) | |
801 | (not (mh-signature-separator-p))))))) | |
f0d73c14 | 802 | |
dda00b2c BW |
803 | (defun mh-signature-highlight (&optional handle) |
804 | "Highlight message signature in HANDLE. | |
805 | The optional argument, HANDLE is a MIME handle if the function is | |
806 | being used to highlight the signature in a MIME part." | |
807 | (let ((regexp | |
808 | (cond ((not handle) "^-- $") | |
809 | ((not (and (equal (mm-handle-media-supertype handle) "text") | |
810 | (equal (mm-handle-media-subtype handle) "html"))) | |
811 | "^-- $") | |
812 | ((eq (mh-mm-text-html-renderer) 'lynx) "^ --$") | |
813 | (t "^--$")))) | |
814 | (save-excursion | |
815 | (goto-char (point-max)) | |
816 | (when (re-search-backward regexp nil t) | |
817 | (mh-do-in-gnu-emacs | |
818 | (let ((ov (make-overlay (point) (point-max)))) | |
819 | (overlay-put ov 'face 'mh-show-signature) | |
820 | (overlay-put ov 'evaporate t))) | |
821 | (mh-do-in-xemacs | |
822 | (set-extent-property (make-extent (point) (point-max)) | |
823 | 'face 'mh-show-signature)))))) | |
2dcf34f9 | 824 | |
dda00b2c | 825 | \f |
bdcfe844 | 826 | |
dda00b2c | 827 | ;;; Button Display |
bdcfe844 | 828 | |
04f6a2d1 | 829 | ;; Shush compiler. |
42f8c37f BW |
830 | (defvar dots) ; XEmacs |
831 | (defvar type) ; XEmacs | |
832 | (defvar ov) ; XEmacs | |
2dcf34f9 | 833 | |
dda00b2c BW |
834 | (defun mh-insert-mime-button (handle index displayed) |
835 | "Insert MIME button for HANDLE. | |
836 | INDEX is the part number that will be DISPLAYED. It is also used | |
837 | by commands like \"K v\" which operate on individual MIME parts." | |
838 | ;; The button could be displayed by a previous decode. In that case | |
839 | ;; undisplay it if we need a hidden button. | |
840 | (when (and (mm-handle-displayed-p handle) (not displayed)) | |
841 | (mm-display-part handle)) | |
842 | (let ((name (or (mail-content-type-get (mm-handle-type handle) 'name) | |
843 | (mail-content-type-get (mm-handle-disposition handle) | |
844 | 'filename) | |
845 | (mail-content-type-get (mm-handle-type handle) 'url) | |
846 | "")) | |
847 | (type (mm-handle-media-type handle)) | |
848 | (description (mail-decode-encoded-word-string | |
849 | (or (mm-handle-description handle) ""))) | |
850 | (dots (if (or displayed (mm-handle-displayed-p handle)) " " "...")) | |
851 | long-type begin end) | |
852 | (if (string-match ".*/" name) (setq name (substring name (match-end 0)))) | |
853 | (setq long-type (concat type (and (not (equal name "")) | |
854 | (concat "; " name)))) | |
855 | (unless (equal description "") | |
856 | (setq long-type (concat " --- " long-type))) | |
857 | (unless (bolp) (insert "\n")) | |
858 | (setq begin (point)) | |
859 | (gnus-eval-format | |
860 | mh-mime-button-line-format mh-mime-button-line-format-alist | |
06e7028b | 861 | `(,@(mh-gnus-local-map-property mh-mime-button-map) |
dda00b2c BW |
862 | mh-callback mh-mm-display-part |
863 | mh-part ,index | |
864 | mh-data ,handle)) | |
865 | (setq end (point)) | |
866 | (widget-convert-button | |
867 | 'link begin end | |
868 | :mime-handle handle | |
869 | :action 'mh-widget-press-button | |
870 | :button-keymap mh-mime-button-map | |
871 | :help-echo | |
872 | "Mouse-2 click or press RET (in show buffer) to toggle display") | |
873 | (dolist (ov (mh-funcall-if-exists overlays-in begin end)) | |
874 | (mh-funcall-if-exists overlay-put ov 'evaporate t)))) | |
bdcfe844 | 875 | |
dda00b2c | 876 | ;; Shush compiler. |
42f8c37f BW |
877 | (defvar mm-verify-function-alist) ; < Emacs 22 |
878 | (defvar mm-decrypt-function-alist) ; < Emacs 22 | |
879 | (defvar pressed-details) ; XEmacs | |
f0d73c14 | 880 | |
dda00b2c BW |
881 | (defun mh-insert-mime-security-button (handle) |
882 | "Display buttons for PGP message, HANDLE." | |
06e7028b | 883 | (let* ((protocol (mh-mm-handle-multipart-ctl-parameter handle 'protocol)) |
dda00b2c BW |
884 | (crypto-type (or (nth 2 (assoc protocol mm-verify-function-alist)) |
885 | (nth 2 (assoc protocol mm-decrypt-function-alist)) | |
886 | "Unknown")) | |
887 | (type (concat crypto-type | |
888 | (if (equal (car handle) "multipart/signed") | |
889 | " Signed" " Encrypted") | |
890 | " Part")) | |
06e7028b | 891 | (info (or (mh-mm-handle-multipart-ctl-parameter handle 'gnus-info) |
dda00b2c | 892 | "Undecided")) |
06e7028b | 893 | (details (mh-mm-handle-multipart-ctl-parameter handle 'gnus-details)) |
dda00b2c BW |
894 | pressed-details begin end face) |
895 | (setq details (if details (concat "\n" details) "")) | |
896 | (setq pressed-details (if mh-mime-security-button-pressed details "")) | |
897 | (setq face (mh-mime-security-button-face info)) | |
898 | (unless (bolp) (insert "\n")) | |
899 | (setq begin (point)) | |
900 | (gnus-eval-format | |
901 | mh-mime-security-button-line-format | |
902 | mh-mime-security-button-line-format-alist | |
06e7028b | 903 | `(,@(mh-gnus-local-map-property mh-mime-security-button-map) |
dda00b2c BW |
904 | mh-button-pressed ,mh-mime-security-button-pressed |
905 | mh-callback mh-mime-security-press-button | |
906 | mh-line-format ,mh-mime-security-button-line-format | |
907 | mh-data ,handle)) | |
908 | (setq end (point)) | |
909 | (widget-convert-button 'link begin end | |
910 | :mime-handle handle | |
911 | :action 'mh-widget-press-button | |
912 | :button-keymap mh-mime-security-button-map | |
913 | :button-face face | |
914 | :help-echo "Mouse-2 click or press RET (in show buffer) to see security details.") | |
915 | (dolist (ov (mh-funcall-if-exists overlays-in begin end)) | |
916 | (mh-funcall-if-exists overlay-put ov 'evaporate t)) | |
917 | (when (equal info "Failed") | |
918 | (let* ((type (if (equal (car handle) "multipart/signed") | |
919 | "verification" "decryption")) | |
920 | (warning (if (equal type "decryption") | |
921 | "(passphrase may be incorrect)" ""))) | |
922 | (message "%s %s failed %s" crypto-type type warning))))) | |
2dcf34f9 | 923 | |
dda00b2c BW |
924 | (defun mh-mime-security-button-face (info) |
925 | "Return the button face to use for encrypted/signed mail based on INFO." | |
926 | (cond ((string-match "OK" info) ;Decrypted mail | |
927 | 'mh-show-pgg-good) | |
928 | ((string-match "Failed" info) ;Decryption failed or signature invalid | |
929 | 'mh-show-pgg-bad) | |
930 | ((string-match "Undecided" info);Unprocessed mail | |
931 | 'mh-show-pgg-unknown) | |
932 | ((string-match "Untrusted" info);Key not trusted | |
933 | 'mh-show-pgg-unknown) | |
934 | (t | |
935 | 'mh-show-pgg-good))) | |
f0d73c14 | 936 | |
dda00b2c | 937 | \f |
2dcf34f9 | 938 | |
dda00b2c BW |
939 | ;;; Button Handlers |
940 | ||
941 | (defun mh-folder-mime-action (part-index action include-security-flag) | |
942 | "Go to PART-INDEX and carry out ACTION. | |
943 | ||
944 | If PART-INDEX is nil then go to the next part in the buffer. The | |
945 | search for the next buffer wraps around if end of buffer is reached. | |
946 | If argument INCLUDE-SECURITY-FLAG is non-nil then include security | |
947 | info buttons when searching for a suitable parts." | |
948 | (unless mh-showing-mode | |
949 | (mh-show)) | |
950 | (mh-in-show-buffer (mh-show-buffer) | |
951 | (let ((criterion | |
952 | (cond (part-index | |
953 | (lambda (p) | |
954 | (let ((part (get-text-property p 'mh-part))) | |
955 | (and (integerp part) (= part part-index))))) | |
956 | (t (lambda (p) | |
957 | (if include-security-flag | |
958 | (get-text-property p 'mh-data) | |
959 | (integerp (get-text-property p 'mh-part))))))) | |
960 | (point (point))) | |
961 | (cond ((and (get-text-property point 'mh-part) | |
962 | (or (null part-index) | |
963 | (= (get-text-property point 'mh-part) part-index))) | |
964 | (funcall action)) | |
965 | ((and (get-text-property point 'mh-data) | |
966 | include-security-flag | |
967 | (null part-index)) | |
968 | (funcall action)) | |
969 | (t | |
970 | (mh-goto-next-button nil criterion) | |
971 | (if (= (point) point) | |
972 | (message "No matching MIME part found") | |
973 | (funcall action))))))) | |
f0d73c14 BW |
974 | |
975 | ;;;###mh-autoload | |
dda00b2c BW |
976 | (defun mh-goto-next-button (backward-flag &optional criterion) |
977 | "Search for next button satisfying criterion. | |
978 | ||
979 | If BACKWARD-FLAG is non-nil search backward in the buffer for a mime | |
980 | button. | |
981 | If CRITERION is a function or a symbol which has a function binding | |
982 | then that function must return non-nil at the button we stop." | |
983 | (unless (or (and (symbolp criterion) (fboundp criterion)) | |
984 | (functionp criterion)) | |
985 | (setq criterion (lambda (x) t))) | |
986 | ;; Move to the next button in the buffer satisfying criterion | |
987 | (goto-char (or (save-excursion | |
988 | (beginning-of-line) | |
989 | ;; Find point before current button | |
990 | (let ((point-before-current-button | |
991 | (save-excursion | |
992 | (while (get-text-property (point) 'mh-data) | |
993 | (unless (= (forward-line | |
994 | (if backward-flag 1 -1)) | |
995 | 0) | |
996 | (if backward-flag | |
997 | (goto-char (point-min)) | |
998 | (goto-char (point-max))))) | |
999 | (point)))) | |
1000 | ;; Skip over current button | |
1001 | (while (and (get-text-property (point) 'mh-data) | |
1002 | (not (if backward-flag (bobp) (eobp)))) | |
1003 | (forward-line (if backward-flag -1 1))) | |
1004 | ;; Stop at next MIME button if any exists. | |
1005 | (block loop | |
1006 | (while (/= (progn | |
1007 | (unless (= (forward-line | |
1008 | (if backward-flag -1 1)) | |
1009 | 0) | |
1010 | (if backward-flag | |
1011 | (goto-char (point-max)) | |
1012 | (goto-char (point-min))) | |
1013 | (beginning-of-line)) | |
1014 | (point)) | |
1015 | point-before-current-button) | |
1016 | (when (and (get-text-property (point) 'mh-data) | |
1017 | (funcall criterion (point))) | |
1018 | (return-from loop (point)))) | |
1019 | nil))) | |
1020 | (point)))) | |
2dcf34f9 | 1021 | |
dda00b2c BW |
1022 | (defun mh-widget-press-button (widget el) |
1023 | "Callback for widget, WIDGET. | |
1024 | Parameter EL is unused." | |
1025 | (goto-char (widget-get widget :from)) | |
1026 | (mh-press-button)) | |
bdcfe844 | 1027 | |
dda00b2c BW |
1028 | (defun mh-press-button () |
1029 | "View contents of button. | |
bdcfe844 | 1030 | |
dda00b2c BW |
1031 | This command is a toggle so if you use it again on the same |
1032 | attachment, the attachment is hidden." | |
1033 | (interactive) | |
1034 | (let ((mm-inline-media-tests mh-mm-inline-media-tests) | |
1035 | (data (get-text-property (point) 'mh-data)) | |
1036 | (function (get-text-property (point) 'mh-callback)) | |
1037 | (buffer-read-only nil) | |
1038 | (folder mh-show-folder-buffer)) | |
1039 | (flet ((mm-handle-set-external-undisplayer | |
1040 | (handle function) | |
1041 | (mh-handle-set-external-undisplayer folder handle function))) | |
1042 | (when (and function (eolp)) | |
1043 | (backward-char)) | |
1044 | (unwind-protect (and function (funcall function data)) | |
1045 | (set-buffer-modified-p nil))))) | |
bdcfe844 | 1046 | |
dda00b2c BW |
1047 | (defun mh-push-button (event) |
1048 | "Click MIME button for EVENT. | |
bdcfe844 | 1049 | |
dda00b2c BW |
1050 | If the MIME part is visible then it is removed. Otherwise the |
1051 | part is displayed. This function is called when the mouse is used | |
1052 | to click the MIME button." | |
1053 | (interactive "e") | |
1054 | (mh-do-at-event-location event | |
1055 | (let ((folder mh-show-folder-buffer) | |
1056 | (mm-inline-media-tests mh-mm-inline-media-tests) | |
1057 | (data (get-text-property (point) 'mh-data)) | |
1058 | (function (get-text-property (point) 'mh-callback))) | |
1059 | (flet ((mm-handle-set-external-undisplayer (handle func) | |
1060 | (mh-handle-set-external-undisplayer folder handle func))) | |
1061 | (and function (funcall function data)))))) | |
bdcfe844 BW |
1062 | |
1063 | (defun mh-handle-set-external-undisplayer (folder handle function) | |
1064 | "Replacement for `mm-handle-set-external-undisplayer'. | |
2dcf34f9 BW |
1065 | |
1066 | This is only called in recent versions of Gnus. The MIME handles | |
1067 | are stored in data structures corresponding to MH-E folder buffer | |
1068 | FOLDER instead of in Gnus (as in the original). The MIME part, | |
1069 | HANDLE is associated with the undisplayer FUNCTION." | |
06e7028b | 1070 | (if (mh-mm-keep-viewer-alive-p handle) |
bdcfe844 | 1071 | (let ((new-handle (copy-sequence handle))) |
c3d9274a BW |
1072 | (mm-handle-set-undisplayer new-handle function) |
1073 | (mm-handle-set-undisplayer handle nil) | |
bdcfe844 BW |
1074 | (save-excursion |
1075 | (set-buffer folder) | |
1076 | (push new-handle (mh-mime-handles (mh-buffer-data))))) | |
1077 | (mm-handle-set-undisplayer handle function))) | |
1078 | ||
dda00b2c BW |
1079 | (defun mh-mime-security-press-button (handle) |
1080 | "Callback from security button for part HANDLE." | |
06e7028b | 1081 | (if (mh-mm-handle-multipart-ctl-parameter handle 'gnus-info) |
dda00b2c | 1082 | (mh-mime-security-show-details handle) |
06e7028b | 1083 | (let ((region (mh-mm-handle-multipart-ctl-parameter handle 'mh-region)) |
dda00b2c BW |
1084 | point) |
1085 | (setq point (point)) | |
1086 | (goto-char (car region)) | |
1087 | (delete-region (car region) (cdr region)) | |
06e7028b | 1088 | (with-current-buffer (mh-mm-handle-multipart-ctl-parameter handle 'buffer) |
dda00b2c BW |
1089 | (let* ((mm-verify-option 'known) |
1090 | (mm-decrypt-option 'known) | |
06e7028b | 1091 | (new (mh-mm-possibly-verify-or-decrypt (cdr handle) handle))) |
dda00b2c | 1092 | (unless (eq new (cdr handle)) |
06e7028b | 1093 | (mh-mm-destroy-parts (cdr handle)) |
dda00b2c BW |
1094 | (setcdr handle new)))) |
1095 | (mh-mime-display-security handle) | |
1096 | (goto-char point)))) | |
1097 | ||
1098 | ;; I rewrote the security part because Gnus doesn't seem to ever minimize | |
1099 | ;; the button. That is once the mime-security button is pressed there seems | |
1100 | ;; to be no way of getting rid of the inserted text. | |
1101 | (defun mh-mime-security-show-details (handle) | |
1102 | "Toggle display of detailed security info for HANDLE." | |
06e7028b | 1103 | (let ((details (mh-mm-handle-multipart-ctl-parameter handle 'gnus-details))) |
dda00b2c BW |
1104 | (when details |
1105 | (let ((mh-mime-security-button-pressed | |
1106 | (not (get-text-property (point) 'mh-button-pressed))) | |
1107 | (mh-mime-security-button-line-format | |
1108 | (get-text-property (point) 'mh-line-format))) | |
1109 | (forward-char -1) | |
1110 | (while (eq (get-text-property (point) 'mh-line-format) | |
1111 | mh-mime-security-button-line-format) | |
1112 | (forward-char -1)) | |
1113 | (forward-char) | |
1114 | (save-restriction | |
1115 | (narrow-to-region (point) (point)) | |
1116 | (mh-insert-mime-security-button handle)) | |
1117 | (delete-region | |
1118 | (point) | |
1119 | (or (text-property-not-all | |
1120 | (point) (point-max) | |
1121 | 'mh-line-format mh-mime-security-button-line-format) | |
1122 | (point-max))) | |
1123 | (forward-line -1))))) | |
1124 | ||
bdcfe844 BW |
1125 | \f |
1126 | ||
dda00b2c | 1127 | ;;; Miscellaneous Article Washing |
bdcfe844 | 1128 | |
c3d9274a | 1129 | ;;;###mh-autoload |
bdcfe844 BW |
1130 | (defun mh-add-missing-mime-version-header () |
1131 | "Some mail programs don't put a MIME-Version header. | |
2dcf34f9 BW |
1132 | I have seen this only in spam, so maybe we shouldn't fix |
1133 | this ;-)" | |
bdcfe844 BW |
1134 | (save-excursion |
1135 | (goto-char (point-min)) | |
a66894d8 BW |
1136 | (re-search-forward "\n\n" nil t) |
1137 | (save-restriction | |
1138 | (narrow-to-region (point-min) (point)) | |
1139 | (when (and (message-fetch-field "content-type") | |
1140 | (not (message-fetch-field "mime-version"))) | |
1141 | (goto-char (point-min)) | |
bdcfe844 BW |
1142 | (insert "MIME-Version: 1.0\n"))))) |
1143 | ||
c3d9274a | 1144 | ;;;###mh-autoload |
bdcfe844 | 1145 | (defun mh-display-smileys () |
0c47b17c | 1146 | "Display smileys." |
a66894d8 BW |
1147 | (when (and mh-graphical-smileys-flag (mh-small-show-buffer-p)) |
1148 | (mh-funcall-if-exists smiley-region (point-min) (point-max)))) | |
bdcfe844 | 1149 | |
c3d9274a | 1150 | ;;;###mh-autoload |
bdcfe844 | 1151 | (defun mh-display-emphasis () |
0c47b17c | 1152 | "Display graphical emphasis." |
a66894d8 | 1153 | (when (and mh-graphical-emphasis-flag (mh-small-show-buffer-p)) |
c3d9274a | 1154 | (flet ((article-goto-body ())) ; shadow this function to do nothing |
bdcfe844 BW |
1155 | (save-excursion |
1156 | (goto-char (point-min)) | |
1157 | (article-emphasize))))) | |
1158 | ||
dda00b2c BW |
1159 | (defun mh-small-show-buffer-p () |
1160 | "Check if show buffer is small. | |
1161 | This is used to decide if smileys and graphical emphasis should be | |
1162 | displayed." | |
1163 | (let ((max nil)) | |
1164 | (when (and (boundp 'font-lock-maximum-size) font-lock-maximum-size) | |
1165 | (cond ((numberp font-lock-maximum-size) | |
1166 | (setq max font-lock-maximum-size)) | |
1167 | ((listp font-lock-maximum-size) | |
1168 | (setq max (cdr (or (assoc 'mh-show-mode font-lock-maximum-size) | |
1169 | (assoc t font-lock-maximum-size))))))) | |
1170 | (or (not (numberp max)) (>= (/ max 8) (buffer-size))))) | |
bdcfe844 | 1171 | |
dda00b2c | 1172 | \f |
bdcfe844 | 1173 | |
dda00b2c | 1174 | ;;; MH-Letter Commands |
553fb735 | 1175 | |
dda00b2c | 1176 | ;; MH-E commands are alphabetical; specific support routines follow command. |
bdcfe844 | 1177 | |
dda00b2c BW |
1178 | ;;;###mh-autoload |
1179 | (defun mh-compose-forward (&optional description folder range) | |
1180 | "Add tag to forward a message. | |
bdcfe844 | 1181 | |
dda00b2c BW |
1182 | You are prompted for a content DESCRIPTION, the name of the |
1183 | FOLDER in which the messages to forward are located, and a RANGE | |
1184 | of messages, which defaults to the current message in that | |
1185 | folder. Check the documentation of `mh-interactive-range' to see | |
1186 | how RANGE is read in interactive use. | |
924df208 | 1187 | |
dda00b2c BW |
1188 | The option `mh-compose-insertion' controls what type of tags are inserted." |
1189 | (interactive | |
1190 | (let* ((description | |
1191 | (mml-minibuffer-read-description)) | |
1192 | (folder | |
1193 | (mh-prompt-for-folder "Message from" | |
1194 | mh-sent-from-folder nil)) | |
1195 | (default | |
1196 | (if (and (equal folder mh-sent-from-folder) | |
1197 | (numberp mh-sent-from-msg)) | |
1198 | mh-sent-from-msg | |
1199 | (nth 0 (mh-translate-range folder "cur")))) | |
1200 | (range | |
1201 | (mh-read-range "Forward" folder | |
1202 | (or (and default | |
1203 | (number-to-string default)) | |
1204 | t) | |
1205 | t t))) | |
1206 | (list description folder range))) | |
1207 | (let ((messages (mapconcat 'identity (mh-list-to-string range) " "))) | |
1208 | (dolist (message (mh-translate-range folder messages)) | |
1209 | (if (equal mh-compose-insertion 'mml) | |
1210 | (mh-mml-forward-message description folder (format "%s" message)) | |
1211 | (mh-mh-forward-message description folder (format "%s" message)))))) | |
d103d8b3 | 1212 | |
924df208 | 1213 | ;;;###mh-autoload |
dda00b2c BW |
1214 | (defun mh-mml-forward-message (description folder message) |
1215 | "Forward a message as attachment. | |
924df208 | 1216 | |
dda00b2c BW |
1217 | The function will prompt the user for a DESCRIPTION, a FOLDER and |
1218 | MESSAGE number." | |
1219 | (let ((msg (if (and (equal message "") (numberp mh-sent-from-msg)) | |
1220 | mh-sent-from-msg | |
1221 | (string-to-number message)))) | |
1222 | (cond ((integerp msg) | |
1223 | (if (string= "" description) | |
1224 | ;; Rationale: mml-attach-file constructs a malformed composition | |
1225 | ;; if the description string is empty. This fixes SF #625168. | |
1226 | (mml-attach-file (format "%s%s/%d" | |
1227 | mh-user-path (substring folder 1) msg) | |
1228 | "message/rfc822") | |
1229 | (mml-attach-file (format "%s%s/%d" | |
1230 | mh-user-path (substring folder 1) msg) | |
1231 | "message/rfc822" | |
1232 | description))) | |
1233 | (t (error "The message number, %s, is not a integer" msg))))) | |
924df208 | 1234 | |
dda00b2c BW |
1235 | (defun mh-mh-forward-message (&optional description folder messages) |
1236 | "Add tag to forward a message. | |
1237 | You are prompted for a content DESCRIPTION, the name of the | |
1238 | FOLDER in which the messages to forward are located, and the | |
1239 | MESSAGES' numbers. | |
924df208 | 1240 | |
dda00b2c BW |
1241 | See also \\[mh-mh-to-mime]." |
1242 | (interactive (list | |
1243 | (mml-minibuffer-read-description) | |
1244 | (mh-prompt-for-folder "Message from" mh-sent-from-folder nil) | |
1245 | (read-string (concat "Messages" | |
1246 | (if (numberp mh-sent-from-msg) | |
1247 | (format " (default %d): " | |
1248 | mh-sent-from-msg) | |
1249 | ": "))))) | |
1250 | (beginning-of-line) | |
1251 | (insert "#forw [") | |
1252 | (and description | |
1253 | (not (string= description "")) | |
1254 | (insert description)) | |
1255 | (insert "]") | |
1256 | (and folder | |
1257 | (not (string= folder "")) | |
1258 | (insert " " folder)) | |
1259 | (if (and messages | |
1260 | (not (string= messages ""))) | |
1261 | (let ((start (point))) | |
1262 | (insert " " messages) | |
1263 | (subst-char-in-region start (point) ?, ? )) | |
1264 | (if (numberp mh-sent-from-msg) | |
1265 | (insert " " (int-to-string mh-sent-from-msg)))) | |
1266 | (insert "\n")) | |
bdcfe844 | 1267 | |
dda00b2c BW |
1268 | ;;;###mh-autoload |
1269 | (defun mh-compose-insertion (&optional inline) | |
1270 | "Add tag to include a file such as an image or sound. | |
bdcfe844 | 1271 | |
dda00b2c BW |
1272 | You are prompted for the filename containing the object, the |
1273 | media type if it cannot be determined automatically, and a | |
1274 | content description. If you're using MH-style directives, you | |
1275 | will also be prompted for additional attributes. | |
bdcfe844 | 1276 | |
dda00b2c BW |
1277 | The option `mh-compose-insertion' controls what type of tags are |
1278 | inserted. Optional argument INLINE means make it an inline | |
1279 | attachment." | |
1280 | (interactive "P") | |
1281 | (if (equal mh-compose-insertion 'mml) | |
1282 | (if inline | |
1283 | (mh-mml-attach-file "inline") | |
1284 | (mh-mml-attach-file)) | |
1285 | (call-interactively 'mh-mh-attach-file))) | |
bdcfe844 | 1286 | |
dda00b2c BW |
1287 | (defun mh-mml-attach-file (&optional disposition) |
1288 | "Add a tag to insert a MIME message part from a file. | |
bdcfe844 | 1289 | |
dda00b2c BW |
1290 | You are prompted for the filename containing the object, the |
1291 | media type if it cannot be determined automatically, a content | |
1292 | description and the DISPOSITION of the attachment. | |
a66894d8 | 1293 | |
dda00b2c BW |
1294 | This is basically `mml-attach-file' from Gnus, modified such that a prefix |
1295 | argument yields an \"inline\" disposition and Content-Type is determined | |
1296 | automatically." | |
1297 | (let* ((file (mml-minibuffer-read-file "Attach file: ")) | |
1298 | (type (mh-minibuffer-read-type file)) | |
1299 | (description (mml-minibuffer-read-description)) | |
1300 | (dispos (or disposition | |
06e7028b | 1301 | (mh-mml-minibuffer-read-disposition type)))) |
dda00b2c BW |
1302 | (mml-insert-empty-tag 'part 'type type 'filename file |
1303 | 'disposition dispos 'description description))) | |
bdcfe844 | 1304 | |
dda00b2c BW |
1305 | (defun mh-mh-attach-file (filename type description attributes) |
1306 | "Add a tag to insert a MIME message part from a file. | |
1307 | You are prompted for the FILENAME containing the object, the | |
1308 | media TYPE if it cannot be determined automatically, and a | |
1309 | content DESCRIPTION. In addition, you are also prompted for | |
1310 | additional ATTRIBUTES. | |
bdcfe844 | 1311 | |
dda00b2c BW |
1312 | See also \\[mh-mh-to-mime]." |
1313 | (interactive (let ((filename (mml-minibuffer-read-file "Attach file: "))) | |
1314 | (list | |
1315 | filename | |
1316 | (mh-minibuffer-read-type filename) | |
1317 | (mml-minibuffer-read-description) | |
1318 | (read-string "Attributes: " | |
1319 | (concat "name=\"" | |
1320 | (file-name-nondirectory filename) | |
1321 | "\""))))) | |
1322 | (mh-mh-compose-type filename type description attributes)) | |
bdcfe844 | 1323 | |
dda00b2c BW |
1324 | (defun mh-mh-compose-type (filename type |
1325 | &optional description attributes comment) | |
1326 | "Insert an MH-style directive to insert a file. | |
1327 | The file specified by FILENAME is encoded as TYPE. An optional | |
1328 | DESCRIPTION is used as the Content-Description field, optional | |
1329 | set of ATTRIBUTES and an optional COMMENT can also be included." | |
1330 | (beginning-of-line) | |
1331 | (insert "#" type) | |
1332 | (and attributes | |
1333 | (insert "; " attributes)) | |
1334 | (and comment | |
1335 | (insert " (" comment ")")) | |
1336 | (insert " [") | |
1337 | (and description | |
1338 | (insert description)) | |
1339 | (insert "] " (expand-file-name filename)) | |
1340 | (insert "\n")) | |
c3d9274a | 1341 | |
dda00b2c BW |
1342 | ;;;###mh-autoload |
1343 | (defun mh-mh-compose-anon-ftp (host filename type description) | |
1344 | "Add tag to include anonymous ftp reference to a file. | |
bdcfe844 | 1345 | |
dda00b2c BW |
1346 | You can have your message initiate an \"ftp\" transfer when the |
1347 | recipient reads the message. You are prompted for the remote HOST | |
1348 | and FILENAME, the media TYPE, and the content DESCRIPTION. | |
f0d73c14 | 1349 | |
dda00b2c BW |
1350 | See also \\[mh-mh-to-mime]." |
1351 | (interactive (list | |
1352 | (read-string "Remote host: ") | |
1353 | (read-string "Remote filename: ") | |
1354 | (mh-minibuffer-read-type "DUMMY-FILENAME") | |
1355 | (mml-minibuffer-read-description))) | |
1356 | (mh-mh-compose-external-type "anon-ftp" host filename | |
1357 | type description)) | |
924df208 | 1358 | |
dda00b2c BW |
1359 | ;;;###mh-autoload |
1360 | (defun mh-mh-compose-external-compressed-tar (host filename description) | |
1361 | "Add tag to include anonymous ftp reference to a compressed tar file. | |
bdcfe844 | 1362 | |
dda00b2c BW |
1363 | In addition to retrieving the file via anonymous \"ftp\" as per |
1364 | the command \\[mh-mh-compose-anon-ftp], the file will also be | |
1365 | uncompressed and untarred. You are prompted for the remote HOST | |
1366 | and FILENAME and the content DESCRIPTION. | |
bdcfe844 | 1367 | |
dda00b2c BW |
1368 | See also \\[mh-mh-to-mime]." |
1369 | (interactive (list | |
1370 | (read-string "Remote host: ") | |
1371 | (read-string "Remote filename: ") | |
1372 | (mml-minibuffer-read-description))) | |
1373 | (mh-mh-compose-external-type "anon-ftp" host filename | |
1374 | "application/octet-stream" | |
1375 | description | |
1376 | "type=tar; conversions=x-compress" | |
1377 | "mode=image")) | |
1378 | ||
1379 | ;; RFC 2045 - Multipurpose Internet Mail Extensions (MIME) Part One: | |
1380 | ;; Format of Internet Message Bodies. | |
1381 | ;; RFC 2046 - Multipurpose Internet Mail Extensions (MIME) Part Two: | |
1382 | ;; Media Types. | |
1383 | ;; RFC 2049 - Multipurpose Internet Mail Extensions (MIME) Part Five: | |
1384 | ;; Conformance Criteria and Examples. | |
1385 | ;; RFC 2017 - Definition of the URL MIME External-Body Access-Type | |
1386 | ;; RFC 1738 - Uniform Resource Locators (URL) | |
1387 | (defvar mh-access-types | |
1388 | '(("anon-ftp") ; RFC2046 Anonymous File Transfer Protocol | |
1389 | ("file") ; RFC1738 Host-specific file names | |
1390 | ("ftp") ; RFC2046 File Transfer Protocol | |
1391 | ("gopher") ; RFC1738 The Gopher Protocol | |
1392 | ("http") ; RFC1738 Hypertext Transfer Protocol | |
1393 | ("local-file") ; RFC2046 Local file access | |
1394 | ("mail-server") ; RFC2046 mail-server Electronic mail address | |
1395 | ("mailto") ; RFC1738 Electronic mail address | |
1396 | ("news") ; RFC1738 Usenet news | |
1397 | ("nntp") ; RFC1738 Usenet news using NNTP access | |
1398 | ("propspero") ; RFC1738 Prospero Directory Service | |
1399 | ("telnet") ; RFC1738 Telnet | |
1400 | ("tftp") ; RFC2046 Trivial File Transfer Protocol | |
1401 | ("url") ; RFC2017 URL scheme MIME access-type Protocol | |
1402 | ("wais")) ; RFC1738 Wide Area Information Servers | |
1403 | "Valid MIME access-type values.") | |
bdcfe844 | 1404 | |
c3d9274a | 1405 | ;;;###mh-autoload |
dda00b2c BW |
1406 | (defun mh-mh-compose-external-type (access-type host filename type |
1407 | &optional description | |
1408 | attributes parameters | |
1409 | comment) | |
1410 | "Add tag to refer to a remote file. | |
553fb735 | 1411 | |
dda00b2c BW |
1412 | This command is a general utility for referencing external files. |
1413 | In fact, all of the other commands that insert directives to | |
1414 | access external files call this command. You are prompted for the | |
1415 | ACCESS-TYPE, remote HOST and FILENAME, and content TYPE. If you | |
1416 | provide a prefix argument, you are also prompted for a content | |
1417 | DESCRIPTION, ATTRIBUTES, PARAMETERS, and a COMMENT. | |
bdcfe844 | 1418 | |
dda00b2c BW |
1419 | See also \\[mh-mh-to-mime]." |
1420 | (interactive (list | |
1421 | (completing-read "Access type: " mh-access-types) | |
1422 | (read-string "Remote host: ") | |
1423 | (read-string "Remote filename: ") | |
1424 | (mh-minibuffer-read-type "DUMMY-FILENAME") | |
1425 | (if current-prefix-arg (mml-minibuffer-read-description)) | |
1426 | (if current-prefix-arg (read-string "Attributes: ")) | |
1427 | (if current-prefix-arg (read-string "Parameters: ")) | |
1428 | (if current-prefix-arg (read-string "Comment: ")))) | |
1429 | (beginning-of-line) | |
1430 | (insert "#@" type) | |
1431 | (and attributes | |
1432 | (insert "; " attributes)) | |
1433 | (and comment | |
1434 | (insert " (" comment ") ")) | |
1435 | (insert " [") | |
1436 | (and description | |
1437 | (insert description)) | |
1438 | (insert "] ") | |
1439 | (insert "access-type=" access-type "; ") | |
1440 | (insert "site=" host) | |
1441 | (insert "; name=" (file-name-nondirectory filename)) | |
1442 | (let ((directory (file-name-directory filename))) | |
1443 | (and directory | |
1444 | (insert "; directory=\"" directory "\""))) | |
1445 | (and parameters | |
1446 | (insert "; " parameters)) | |
1447 | (insert "\n")) | |
2dcf34f9 | 1448 | |
dda00b2c BW |
1449 | (defvar mh-mh-to-mime-args nil |
1450 | "Extra arguments for \\[mh-mh-to-mime] to pass to the \"mhbuild\" command. | |
1451 | The arguments are passed to \"mhbuild\" if \\[mh-mh-to-mime] is | |
1452 | given a prefix argument. Normally default arguments to | |
1453 | \"mhbuild\" are specified in the MH profile.") | |
bdcfe844 | 1454 | |
c3d9274a | 1455 | ;;;###mh-autoload |
dda00b2c BW |
1456 | (defun mh-mh-to-mime (&optional extra-args) |
1457 | "Compose MIME message from MH-style directives. | |
bdcfe844 | 1458 | |
dda00b2c BW |
1459 | Typically, you send a message with attachments just like any other |
1460 | message. However, you may take a sneak preview of the MIME encoding if | |
1461 | you wish by running this command. | |
bdcfe844 | 1462 | |
dda00b2c BW |
1463 | If you wish to pass additional arguments to \"mhbuild\" (\"mhn\") |
1464 | to affect how it builds your message, use the option | |
1465 | `mh-mh-to-mime-args'. For example, you can build a consistency | |
1466 | check into the message by setting `mh-mh-to-mime-args' to | |
1467 | \"-check\". The recipient of your message can then run \"mhbuild | |
1468 | -check\" on the message--\"mhbuild\" (\"mhn\") will complain if | |
1469 | the message has been corrupted on the way. This command only | |
1470 | consults this option when given a prefix argument EXTRA-ARGS. | |
553fb735 | 1471 | |
dda00b2c BW |
1472 | The hook `mh-mh-to-mime-hook' is called after the message has been |
1473 | formatted. | |
2dcf34f9 | 1474 | |
dda00b2c BW |
1475 | The effects of this command can be undone by running |
1476 | \\[mh-mh-to-mime-undo]." | |
1477 | (interactive "*P") | |
1478 | (mh-mh-quote-unescaped-sharp) | |
1479 | (save-buffer) | |
1480 | (message "Running %s..." (if (mh-variant-p 'nmh) "mhbuild" "mhn")) | |
1481 | (cond | |
1482 | ((mh-variant-p 'nmh) | |
1483 | (mh-exec-cmd-error nil | |
1484 | "mhbuild" | |
1485 | (if extra-args mh-mh-to-mime-args) | |
1486 | buffer-file-name)) | |
1487 | (t | |
1488 | (mh-exec-cmd-error (format "mhdraft=%s" buffer-file-name) | |
1489 | "mhn" | |
1490 | (if extra-args mh-mh-to-mime-args) | |
1491 | buffer-file-name))) | |
1492 | (revert-buffer t t) | |
1493 | (message "Running %s...done" (if (mh-variant-p 'nmh) "mhbuild" "mhn")) | |
1494 | (run-hooks 'mh-mh-to-mime-hook)) | |
2dcf34f9 | 1495 | |
dda00b2c BW |
1496 | (defun mh-mh-quote-unescaped-sharp () |
1497 | "Quote \"#\" characters that haven't been quoted for \"mhbuild\". | |
1498 | If the \"#\" character is present in the first column, but it isn't | |
1499 | part of a MH-style directive then \"mhbuild\" gives an error. | |
1500 | This function will quote all such characters." | |
1501 | (save-excursion | |
1502 | (goto-char (point-min)) | |
1503 | (while (re-search-forward "^#" nil t) | |
1504 | (beginning-of-line) | |
d5dc8c56 | 1505 | (unless (mh-mh-directive-present-p (point) (mh-line-end-position)) |
dda00b2c | 1506 | (insert "#")) |
d5dc8c56 | 1507 | (goto-char (mh-line-end-position))))) |
f0d73c14 | 1508 | |
dda00b2c BW |
1509 | ;;;###mh-autoload |
1510 | (defun mh-mh-to-mime-undo (noconfirm) | |
1511 | "Undo effects of \\[mh-mh-to-mime]. | |
bdcfe844 | 1512 | |
dda00b2c BW |
1513 | It does this by reverting to a backup file. You are prompted to |
1514 | confirm this action, but you can avoid the confirmation by adding | |
1515 | a prefix argument NOCONFIRM." | |
1516 | (interactive "*P") | |
1517 | (if (null buffer-file-name) | |
1518 | (error "Buffer does not seem to be associated with any file")) | |
1519 | (let ((backup-strings '("," "#")) | |
1520 | backup-file) | |
1521 | (while (and backup-strings | |
1522 | (not (file-exists-p | |
1523 | (setq backup-file | |
1524 | (concat (file-name-directory buffer-file-name) | |
1525 | (car backup-strings) | |
1526 | (file-name-nondirectory buffer-file-name) | |
1527 | ".orig"))))) | |
1528 | (setq backup-strings (cdr backup-strings))) | |
1529 | (or backup-strings | |
1530 | (error "Backup file for %s no longer exists" buffer-file-name)) | |
1531 | (or noconfirm | |
1532 | (yes-or-no-p (format "Revert buffer from file %s? " | |
1533 | backup-file)) | |
1534 | (error "Revert not confirmed")) | |
1535 | (let ((buffer-read-only nil)) | |
1536 | (erase-buffer) | |
1537 | (insert-file-contents backup-file)) | |
1538 | (after-find-file nil))) | |
bdcfe844 | 1539 | |
dda00b2c | 1540 | ;; Shush compiler. |
73e6d1af | 1541 | (defvar mh-identity-pgg-default-user-id) |
bdcfe844 | 1542 | |
dda00b2c BW |
1543 | ;;;###mh-autoload |
1544 | (defun mh-mml-secure-message-encrypt (method) | |
1545 | "Add tag to encrypt the message. | |
e495eaec | 1546 | |
dda00b2c BW |
1547 | A proper multipart message is created for you when you send the |
1548 | message. Use the command \\[mh-mml-unsecure-message] to remove | |
1549 | this tag. Use a prefix argument METHOD to be prompted for one of | |
1550 | the possible security methods (see `mh-mml-method-default')." | |
1551 | (interactive (list (mh-mml-query-cryptographic-method))) | |
1552 | (mh-secure-message method "encrypt" mh-identity-pgg-default-user-id)) | |
bdcfe844 | 1553 | |
dda00b2c BW |
1554 | ;;;###mh-autoload |
1555 | (defun mh-mml-secure-message-sign (method) | |
1556 | "Add tag to sign the message. | |
bdcfe844 | 1557 | |
dda00b2c BW |
1558 | A proper multipart message is created for you when you send the |
1559 | message. Use the command \\[mh-mml-unsecure-message] to remove | |
1560 | this tag. Use a prefix argument METHOD to be prompted for one of | |
1561 | the possible security methods (see `mh-mml-method-default')." | |
1562 | (interactive (list (mh-mml-query-cryptographic-method))) | |
1563 | (mh-secure-message method "sign" mh-identity-pgg-default-user-id)) | |
bdcfe844 | 1564 | |
dda00b2c BW |
1565 | ;;;###mh-autoload |
1566 | (defun mh-mml-secure-message-signencrypt (method) | |
1567 | "Add tag to encrypt and sign the message. | |
bdcfe844 | 1568 | |
dda00b2c BW |
1569 | A proper multipart message is created for you when you send the |
1570 | message. Use the command \\[mh-mml-unsecure-message] to remove | |
1571 | this tag. Use a prefix argument METHOD to be prompted for one of | |
1572 | the possible security methods (see `mh-mml-method-default')." | |
1573 | (interactive (list (mh-mml-query-cryptographic-method))) | |
1574 | (mh-secure-message method "signencrypt" mh-identity-pgg-default-user-id)) | |
1575 | ||
1576 | (defvar mh-mml-cryptographic-method-history ()) | |
1577 | ||
1578 | (defun mh-mml-query-cryptographic-method () | |
1579 | "Read the cryptographic method to use." | |
1580 | (if current-prefix-arg | |
1581 | (let ((def (or (car mh-mml-cryptographic-method-history) | |
1582 | mh-mml-method-default))) | |
1583 | (completing-read (format "Method (default %s): " def) | |
1584 | '(("pgp") ("pgpmime") ("smime")) | |
1585 | nil t nil 'mh-mml-cryptographic-method-history def)) | |
1586 | mh-mml-method-default)) | |
1587 | ||
1588 | (defun mh-secure-message (method mode &optional identity) | |
1589 | "Add tag to encrypt or sign message. | |
1590 | ||
1591 | METHOD should be one of: \"pgpmime\", \"pgp\", \"smime\". | |
1592 | MODE should be one of: \"sign\", \"encrypt\", \"signencrypt\", \"none\". | |
1593 | IDENTITY is optionally the default-user-id to use." | |
1594 | (if (not mh-pgp-support-flag) | |
1595 | (error "Your version of Gnus does not support PGP/GPG") | |
1596 | ;; Check the arguments | |
1597 | (let ((valid-methods (list "pgpmime" "pgp" "smime")) | |
1598 | (valid-modes (list "sign" "encrypt" "signencrypt" "none"))) | |
1599 | (if (not (member method valid-methods)) | |
1600 | (error "Method %s is invalid" method)) | |
1601 | (if (not (member mode valid-modes)) | |
1602 | (error "Mode %s is invalid" mode)) | |
1603 | (mml-unsecure-message) | |
1604 | (if (not (string= mode "none")) | |
1605 | (save-excursion | |
1606 | (goto-char (point-min)) | |
1607 | (mh-goto-header-end 1) | |
1608 | (if mh-identity-pgg-default-user-id | |
1609 | (mml-insert-tag 'secure 'method method 'mode mode | |
1610 | 'sender mh-identity-pgg-default-user-id) | |
1611 | (mml-insert-tag 'secure 'method method 'mode mode))))))) | |
1612 | ||
1613 | ;;;###mh-autoload | |
1614 | (defun mh-mml-to-mime () | |
1615 | "Compose MIME message from MML tags. | |
1616 | ||
1617 | Typically, you send a message with attachments just like any | |
1618 | other message. However, you may take a sneak preview of the MIME | |
1619 | encoding if you wish by running this command. | |
1620 | ||
1621 | This action can be undone by running \\[undo]." | |
1622 | (interactive) | |
1623 | (require 'message) | |
1624 | (when mh-pgp-support-flag ;; This is only needed for PGP | |
1625 | (message-options-set-recipient)) | |
1626 | (let ((saved-text (buffer-string)) | |
1627 | (buffer (current-buffer)) | |
1628 | (modified-flag (buffer-modified-p))) | |
1629 | (condition-case err (mml-to-mime) | |
1630 | (error | |
1631 | (with-current-buffer buffer | |
1632 | (delete-region (point-min) (point-max)) | |
1633 | (insert saved-text) | |
1634 | (set-buffer-modified-p modified-flag)) | |
1635 | (error (error-message-string err)))))) | |
1636 | ||
1637 | ;;;###mh-autoload | |
1638 | (defun mh-mml-unsecure-message () | |
1639 | "Remove any secure message tags." | |
1640 | (interactive) | |
1641 | (if (not mh-pgp-support-flag) | |
1642 | (error "Your version of Gnus does not support PGP/GPG") | |
1643 | (mml-unsecure-message))) | |
1644 | ||
1645 | \f | |
1646 | ||
1647 | ;;; Support Routines for MH-Letter Commands | |
1648 | ||
1649 | ;;;###mh-autoload | |
1650 | (defun mh-mml-tag-present-p () | |
1651 | "Check if the current buffer has text which may be a MML tag." | |
1652 | (save-excursion | |
1653 | (goto-char (point-min)) | |
1654 | (re-search-forward | |
1655 | (concat | |
1656 | "\\(<#\\(mml\\|part\\)\\(.\\|\n\\)*>[ \n\t]*<#/\\(mml\\|part\\)>\\|" | |
1657 | "^<#secure.+>$\\)") | |
1658 | nil t))) | |
1659 | ||
1660 | (defvar mh-media-type-regexp | |
1661 | (concat (regexp-opt '("text" "image" "audio" "video" "application" | |
1662 | "multipart" "message") t) | |
1663 | "/[-.+a-zA-Z0-9]+") | |
1664 | "Regexp matching valid media types used in MIME attachment compositions.") | |
1665 | ||
1666 | ;;;###mh-autoload | |
1667 | (defun mh-mh-directive-present-p (&optional begin end) | |
1668 | "Check if the text between BEGIN and END might be a MH-style directive. | |
1669 | The optional argument BEGIN defaults to the beginning of the | |
821138c4 | 1670 | buffer, while END defaults to the end of the buffer." |
dda00b2c BW |
1671 | (unless begin (setq begin (point-min))) |
1672 | (unless end (setq end (point-max))) | |
1673 | (save-excursion | |
1674 | (block 'search-for-mh-directive | |
1675 | (goto-char begin) | |
1676 | (while (re-search-forward "^#" end t) | |
d5dc8c56 BW |
1677 | (let ((s (buffer-substring-no-properties |
1678 | (point) (mh-line-end-position)))) | |
dda00b2c BW |
1679 | (cond ((equal s "")) |
1680 | ((string-match "^forw[ \t\n]+" s) | |
1681 | (return-from 'search-for-mh-directive t)) | |
1682 | (t (let ((first-token (car (split-string s "[ \t;@]")))) | |
1683 | (when (and first-token | |
1684 | (string-match mh-media-type-regexp | |
1685 | first-token)) | |
1686 | (return-from 'search-for-mh-directive t))))))) | |
1687 | nil))) | |
1688 | ||
1689 | (defun mh-minibuffer-read-type (filename &optional default) | |
1690 | "Return the content type associated with the given FILENAME. | |
1691 | If the \"file\" command exists and recognizes the given file, | |
1692 | then its value is returned\; otherwise, the user is prompted for | |
0659521f | 1693 | a type (see `mailcap-mime-types'). |
dda00b2c BW |
1694 | Optional argument DEFAULT is returned if a type isn't entered." |
1695 | (mailcap-parse-mimetypes) | |
1696 | (let* ((default (or default | |
1697 | (mm-default-file-encoding filename) | |
1698 | "application/octet-stream")) | |
1699 | (probed-type (mh-file-mime-type filename)) | |
1700 | (type (or (and (not (equal probed-type "application/octet-stream")) | |
1701 | probed-type) | |
1702 | (completing-read | |
1703 | (format "Content type (default %s): " default) | |
1704 | (mapcar 'list (mailcap-mime-types)))))) | |
1705 | (if (not (equal type "")) | |
1706 | type | |
1707 | default))) | |
1708 | ||
1709 | ;;;###mh-autoload | |
1710 | (defun mh-file-mime-type (filename) | |
1711 | "Return MIME type of FILENAME from file command. | |
1712 | Returns nil if file command not on system." | |
1713 | (cond | |
1714 | ((not (mh-have-file-command)) | |
1715 | nil) ;no file command, exit now | |
1716 | ((not (and (file-exists-p filename) | |
1717 | (file-readable-p filename))) | |
1718 | nil) ;no file or not readable, ditto | |
1719 | (t | |
bdcfe844 | 1720 | (save-excursion |
dda00b2c BW |
1721 | (let ((tmp-buffer (get-buffer-create mh-temp-buffer))) |
1722 | (set-buffer tmp-buffer) | |
1723 | (unwind-protect | |
1724 | (progn | |
1725 | (call-process "file" nil '(t nil) nil "-b" "-i" | |
1726 | (expand-file-name filename)) | |
1727 | (goto-char (point-min)) | |
1728 | (if (not (re-search-forward mh-media-type-regexp nil t)) | |
1729 | nil | |
1730 | (mh-file-mime-type-substitute (match-string 0) filename))) | |
1731 | (kill-buffer tmp-buffer))))))) | |
bdcfe844 | 1732 | |
dda00b2c BW |
1733 | (defvar mh-file-mime-type-substitutions |
1734 | '(("application/msword" "\.xls" "application/ms-excel") | |
1735 | ("application/msword" "\.ppt" "application/ms-powerpoint") | |
6ada44a1 PG |
1736 | ("text/plain" "\.vcf" "text/x-vcard") |
1737 | ("text/rtf" "\.rtf" "application/rtf") | |
1738 | ("application/x-zip" "\.sxc" "application/vnd.sun.xml.calc") | |
1739 | ("application/x-zip" "\.sxd" "application/vnd.sun.xml.draw") | |
1740 | ("application/x-zip" "\.sxi" "application/vnd.sun.xml.impress") | |
1741 | ("application/x-zip" "\.sxw" "application/vnd.sun.xml.writer") | |
1742 | ("application/x-zip" "\.odg" "application/vnd.oasis.opendocument.graphics") | |
1743 | ("application/x-zip" "\.odi" "application/vnd.oasis.opendocument.image") | |
c9237402 | 1744 | ("application/x-zip" "\.odp" |
6ada44a1 | 1745 | "application/vnd.oasis.opendocument.presentation") |
c9237402 | 1746 | ("application/x-zip" "\.ods" |
6ada44a1 PG |
1747 | "application/vnd.oasis.opendocument.spreadsheet") |
1748 | ("application/x-zip" "\.odt" "application/vnd.oasis.opendocument.text")) | |
dda00b2c BW |
1749 | "Substitutions to make for Content-Type returned from file command. |
1750 | The first element is the Content-Type returned by the file command. | |
1751 | The second element is a regexp matching the file name, usually the | |
1752 | extension. | |
1753 | The third element is the Content-Type to replace with.") | |
1754 | ||
1755 | (defun mh-file-mime-type-substitute (content-type filename) | |
1756 | "Return possibly changed CONTENT-TYPE on the FILENAME. | |
1757 | Substitutions are made from the `mh-file-mime-type-substitutions' | |
1758 | variable." | |
1759 | (let ((subst mh-file-mime-type-substitutions) | |
1760 | (type) (match) (answer content-type) | |
1761 | (case-fold-search t)) | |
1762 | (while subst | |
1763 | (setq type (car (car subst)) | |
1764 | match (elt (car subst) 1)) | |
1765 | (if (and (string-equal content-type type) | |
1766 | (string-match match filename)) | |
1767 | (setq answer (elt (car subst) 2) | |
1768 | subst nil) | |
1769 | (setq subst (cdr subst)))) | |
1770 | answer)) | |
1771 | ||
1772 | (defvar mh-have-file-command 'undefined | |
1773 | "Cached value of function `mh-have-file-command'. | |
1774 | Do not reference this variable directly as it might not have been | |
1775 | initialized. Always use the command `mh-have-file-command'.") | |
1776 | ||
1777 | ;;;###mh-autoload | |
1778 | (defun mh-have-file-command () | |
1779 | "Return t if 'file' command is on the system. | |
1780 | 'file -i' is used to get MIME type of composition insertion." | |
1781 | (when (eq mh-have-file-command 'undefined) | |
1782 | (setq mh-have-file-command | |
1783 | (and (fboundp 'executable-find) | |
1784 | (executable-find "file") ; file command exists | |
1785 | ; and accepts -i and -b args. | |
1786 | (zerop (call-process "file" nil nil nil "-i" "-b" | |
1787 | (expand-file-name "inc" mh-progs)))))) | |
1788 | mh-have-file-command) | |
1789 | ||
1790 | \f | |
1791 | ||
1792 | ;;; MIME Cleanup | |
1793 | ||
1794 | ;;;###mh-autoload | |
1795 | (defun mh-mime-cleanup () | |
1796 | "Free the decoded MIME parts." | |
1797 | (let ((mime-data (gethash (current-buffer) mh-globals-hash))) | |
1798 | ;; This is for Emacs, what about XEmacs? | |
1799 | (mh-funcall-if-exists remove-images (point-min) (point-max)) | |
1800 | (when mime-data | |
06e7028b | 1801 | (mh-mm-destroy-parts (mh-mime-handles mime-data)) |
dda00b2c BW |
1802 | (remhash (current-buffer) mh-globals-hash)))) |
1803 | ||
1804 | ;;;###mh-autoload | |
1805 | (defun mh-destroy-postponed-handles () | |
1806 | "Free MIME data for externally displayed MIME parts." | |
1807 | (let ((mime-data (mh-buffer-data))) | |
1808 | (when mime-data | |
06e7028b | 1809 | (mh-mm-destroy-parts (mh-mime-handles mime-data))) |
dda00b2c | 1810 | (remhash (current-buffer) mh-globals-hash))) |
bdcfe844 BW |
1811 | |
1812 | (provide 'mh-mime) | |
1813 | ||
cee9f5c6 BW |
1814 | ;; Local Variables: |
1815 | ;; indent-tabs-mode: nil | |
1816 | ;; sentence-end-double-space: nil | |
1817 | ;; End: | |
bdcfe844 | 1818 | |
cee9f5c6 | 1819 | ;; arch-tag: 0dd36518-1b64-4a84-8f4e-59f422d3f002 |
60370d40 | 1820 | ;;; mh-mime.el ends here |