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bdcfe844 | 1 | ;;; mh-mime.el --- MH-E support for composing MIME messages |
c26cf6c8 | 2 | |
e495eaec | 3 | ;; Copyright (C) 1993, 1995, |
af435184 | 4 | ;; 2001, 2002, 2003, 2004, 2005, 2006 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 RS |
14 | ;; it under the terms of the GNU General Public License as published by |
15 | ;; the Free Software Foundation; either version 2, or (at your option) | |
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 | ||
bdcfe844 | 30 | ;; Internal support for MH-E package. |
0c47b17c BW |
31 | ;; Support for generating MH-style directives for mhn or mhbuild as well as |
32 | ;; MML (MIME Meta Language) tags. MH-style directives are supported by MH 6.8 | |
33 | ;; or later. | |
c26cf6c8 | 34 | |
847b8219 KH |
35 | ;;; Change Log: |
36 | ||
c26cf6c8 RS |
37 | ;;; Code: |
38 | ||
30f24016 | 39 | ;;(message "> mh-mime") |
f0d73c14 | 40 | (eval-when-compile (require 'mh-acros)) |
a66894d8 | 41 | (mh-require-cl) |
7094eefe | 42 | |
bdcfe844 | 43 | (require 'gnus-util) |
9c2cf222 | 44 | (require 'mh-buffers) |
7094eefe | 45 | (require 'mh-comp) |
a66894d8 | 46 | (require 'mh-gnus) |
30f24016 | 47 | ;;(message "< mh-mime") |
bdcfe844 | 48 | |
bdcfe844 | 49 | (autoload 'article-emphasize "gnus-art") |
0c47b17c | 50 | (autoload 'gnus-article-goto-header "gnus-art") |
bdcfe844 | 51 | (autoload 'gnus-eval-format "gnus-spec") |
0c47b17c | 52 | (autoload 'gnus-get-buffer-create "gnus") |
bdcfe844 | 53 | (autoload 'message-options-set-recipient "message") |
1bea9ec4 | 54 | (autoload 'mm-uu-dissect "mm-uu") |
0c47b17c | 55 | (autoload 'mml-unsecure-message "mml-sec") |
924df208 | 56 | (autoload 'rfc2047-decode-region "rfc2047") |
0c47b17c | 57 | (autoload 'widget-convert-button "wid-edit") |
bdcfe844 | 58 | |
c3d9274a | 59 | ;;;###mh-autoload |
bdcfe844 | 60 | (defun mh-compose-insertion (&optional inline) |
0c47b17c | 61 | "Add tag to include a file such as an image or sound. |
0c47b17c | 62 | |
2dcf34f9 BW |
63 | You are prompted for the filename containing the object, the |
64 | media type if it cannot be determined automatically, and a | |
65 | content description. If you're using MH-style directives, you | |
66 | will also be prompted for additional attributes. | |
67 | ||
68 | The option `mh-compose-insertion' controls what type of tags are | |
69 | inserted. Optional argument INLINE means make it an inline | |
70 | attachment." | |
bdcfe844 | 71 | (interactive "P") |
0c47b17c | 72 | (if (equal mh-compose-insertion 'mml) |
bdcfe844 BW |
73 | (if inline |
74 | (mh-mml-attach-file "inline") | |
75 | (mh-mml-attach-file)) | |
0c47b17c | 76 | (call-interactively 'mh-mh-attach-file))) |
bdcfe844 | 77 | |
c3d9274a | 78 | ;;;###mh-autoload |
c2134792 | 79 | (defun mh-compose-forward (&optional description folder range) |
0c47b17c | 80 | "Add tag to forward a message. |
2dcf34f9 BW |
81 | |
82 | You are prompted for a content DESCRIPTION, the name of the | |
c2134792 BW |
83 | FOLDER in which the messages to forward are located, and a RANGE |
84 | of messages, which defaults to the current message in that | |
85 | folder. Check the documentation of `mh-interactive-range' to see | |
86 | how RANGE is read in interactive use. | |
0c47b17c BW |
87 | |
88 | The option `mh-compose-insertion' controls what type of tags are inserted." | |
c2134792 BW |
89 | (interactive |
90 | (let* ((description | |
91 | (mml-minibuffer-read-description)) | |
92 | (folder | |
93 | (mh-prompt-for-folder "Message from" | |
94 | mh-sent-from-folder nil)) | |
95 | (default | |
96 | (if (and (equal folder mh-sent-from-folder) | |
97 | (numberp mh-sent-from-msg)) | |
98 | mh-sent-from-msg | |
99 | (nth 0 (mh-translate-range folder "cur")))) | |
100 | (range | |
101 | (mh-read-range "Forward" folder | |
102 | (or (and default | |
103 | (number-to-string default)) | |
104 | t) | |
105 | t t))) | |
106 | (list description folder range))) | |
107 | (let ((messages (mapconcat 'identity (mh-list-to-string range) " "))) | |
108 | (dolist (message (mh-translate-range folder messages)) | |
0c47b17c | 109 | (if (equal mh-compose-insertion 'mml) |
23847cd6 BW |
110 | (mh-mml-forward-message description folder (format "%s" message)) |
111 | (mh-mh-forward-message description folder (format "%s" message)))))) | |
c26cf6c8 | 112 | |
c26cf6c8 RS |
113 | ;; To do: |
114 | ;; paragraph code should not fill # lines if MIME enabled. | |
0c47b17c BW |
115 | ;; implement mh-auto-mh-to-mime (if non-nil, \\[mh-send-letter] |
116 | ;; invokes mh-mh-to-mime automatically before sending.) | |
117 | ;; actually, instead of mh-auto-mh-to-mime, | |
c26cf6c8 RS |
118 | ;; should read automhnproc from profile |
119 | ;; MIME option to mh-forward | |
120 | ;; command to move to content-description insertion point | |
121 | ||
0c47b17c BW |
122 | (defvar mh-mh-to-mime-args nil |
123 | "Extra arguments for \\[mh-mh-to-mime] to pass to the \"mhbuild\" command. | |
2dcf34f9 BW |
124 | The arguments are passed to \"mhbuild\" if \\[mh-mh-to-mime] is |
125 | given a prefix argument. Normally default arguments to | |
126 | \"mhbuild\" are specified in the MH profile.") | |
847b8219 | 127 | |
bdcfe844 BW |
128 | (defvar mh-media-type-regexp |
129 | (concat (regexp-opt '("text" "image" "audio" "video" "application" | |
130 | "multipart" "message") t) | |
131 | "/[-.+a-zA-Z0-9]+") | |
132 | "Regexp matching valid media types used in MIME attachment compositions.") | |
133 | ||
7094eefe | 134 | (defvar mh-have-file-command 'undefined |
c2134792 | 135 | "Cached value of function `mh-have-file-command'. |
7094eefe BW |
136 | Do not reference this variable directly as it might not have been |
137 | initialized. Always use the command `mh-have-file-command'.") | |
847b8219 | 138 | |
f0d73c14 | 139 | ;;;###mh-autoload |
a1b4049d BW |
140 | (defun mh-have-file-command () |
141 | "Return t if 'file' command is on the system. | |
142 | 'file -i' is used to get MIME type of composition insertion." | |
7094eefe | 143 | (when (eq mh-have-file-command 'undefined) |
a1b4049d BW |
144 | (setq mh-have-file-command |
145 | (and (fboundp 'executable-find) | |
146 | (executable-find "file") ; file command exists | |
147 | ; and accepts -i and -b args. | |
148 | (zerop (call-process "file" nil nil nil "-i" "-b" | |
149 | (expand-file-name "inc" mh-progs)))))) | |
150 | mh-have-file-command) | |
151 | ||
bdcfe844 BW |
152 | (defvar mh-file-mime-type-substitutions |
153 | '(("application/msword" "\.xls" "application/ms-excel") | |
f0d73c14 BW |
154 | ("application/msword" "\.ppt" "application/ms-powerpoint") |
155 | ("text/plain" "\.vcf" "text/x-vcard")) | |
bdcfe844 BW |
156 | "Substitutions to make for Content-Type returned from file command. |
157 | The first element is the Content-Type returned by the file command. | |
2dcf34f9 BW |
158 | The second element is a regexp matching the file name, usually the |
159 | extension. | |
bdcfe844 BW |
160 | The third element is the Content-Type to replace with.") |
161 | ||
162 | (defun mh-file-mime-type-substitute (content-type filename) | |
163 | "Return possibly changed CONTENT-TYPE on the FILENAME. | |
2dcf34f9 BW |
164 | Substitutions are made from the `mh-file-mime-type-substitutions' |
165 | variable." | |
bdcfe844 BW |
166 | (let ((subst mh-file-mime-type-substitutions) |
167 | (type) (match) (answer content-type) | |
168 | (case-fold-search t)) | |
169 | (while subst | |
170 | (setq type (car (car subst)) | |
171 | match (elt (car subst) 1)) | |
172 | (if (and (string-equal content-type type) | |
173 | (string-match match filename)) | |
174 | (setq answer (elt (car subst) 2) | |
175 | subst nil) | |
176 | (setq subst (cdr subst)))) | |
177 | answer)) | |
178 | ||
f0d73c14 | 179 | ;;;###mh-autoload |
a1b4049d BW |
180 | (defun mh-file-mime-type (filename) |
181 | "Return MIME type of FILENAME from file command. | |
182 | Returns nil if file command not on system." | |
183 | (cond | |
184 | ((not (mh-have-file-command)) | |
7094eefe | 185 | nil) ;no file command, exit now |
abb73857 BW |
186 | ((not (and (file-exists-p filename) |
187 | (file-readable-p filename))) | |
7094eefe | 188 | nil) ;no file or not readable, ditto |
a1b4049d BW |
189 | (t |
190 | (save-excursion | |
191 | (let ((tmp-buffer (get-buffer-create mh-temp-buffer))) | |
192 | (set-buffer tmp-buffer) | |
193 | (unwind-protect | |
194 | (progn | |
195 | (call-process "file" nil '(t nil) nil "-b" "-i" | |
196 | (expand-file-name filename)) | |
197 | (goto-char (point-min)) | |
198 | (if (not (re-search-forward mh-media-type-regexp nil t)) | |
199 | nil | |
bdcfe844 | 200 | (mh-file-mime-type-substitute (match-string 0) filename))) |
a1b4049d BW |
201 | (kill-buffer tmp-buffer))))))) |
202 | ||
0c47b17c BW |
203 | (defun mh-minibuffer-read-type (filename &optional default) |
204 | "Return the content type associated with the given FILENAME. | |
2dcf34f9 BW |
205 | If the \"file\" command exists and recognizes the given file, |
206 | then its value is returned\; otherwise, the user is prompted for | |
207 | a type (see `mailcap-mime-types' and for Emacs 20, | |
208 | `mh-mime-content-types'). | |
0c47b17c BW |
209 | Optional argument DEFAULT is returned if a type isn't entered." |
210 | (mailcap-parse-mimetypes) | |
211 | (let* ((default (or default | |
23847cd6 BW |
212 | (mm-default-file-encoding filename) |
213 | "application/octet-stream")) | |
7094eefe | 214 | (probed-type (mh-file-mime-type filename)) |
23847cd6 | 215 | (type (or (and (not (equal probed-type "application/octet-stream")) |
7094eefe | 216 | probed-type) |
0c47b17c BW |
217 | (completing-read |
218 | (format "Content type (default %s): " default) | |
7094eefe | 219 | (mapcar 'list (mailcap-mime-types)))))) |
0c47b17c BW |
220 | (if (not (equal type "")) |
221 | type | |
222 | default))) | |
a1b4049d | 223 | |
f0d73c14 BW |
224 | ;; RFC 2045 - Multipurpose Internet Mail Extensions (MIME) Part One: |
225 | ;; Format of Internet Message Bodies. | |
226 | ;; RFC 2046 - Multipurpose Internet Mail Extensions (MIME) Part Two: | |
227 | ;; Media Types. | |
228 | ;; RFC 2049 - Multipurpose Internet Mail Extensions (MIME) Part Five: | |
229 | ;; Conformance Criteria and Examples. | |
230 | ;; RFC 2017 - Definition of the URL MIME External-Body Access-Type | |
231 | ;; RFC 1738 - Uniform Resource Locators (URL) | |
232 | (defvar mh-access-types | |
233 | '(("anon-ftp") ; RFC2046 Anonymous File Transfer Protocol | |
234 | ("file") ; RFC1738 Host-specific file names | |
235 | ("ftp") ; RFC2046 File Transfer Protocol | |
236 | ("gopher") ; RFC1738 The Gopher Protocol | |
237 | ("http") ; RFC1738 Hypertext Transfer Protocol | |
238 | ("local-file") ; RFC2046 Local file access | |
239 | ("mail-server") ; RFC2046 mail-server Electronic mail address | |
240 | ("mailto") ; RFC1738 Electronic mail address | |
241 | ("news") ; RFC1738 Usenet news | |
242 | ("nntp") ; RFC1738 Usenet news using NNTP access | |
243 | ("propspero") ; RFC1738 Prospero Directory Service | |
244 | ("telnet") ; RFC1738 Telnet | |
245 | ("tftp") ; RFC2046 Trivial File Transfer Protocol | |
246 | ("url") ; RFC2017 URL scheme MIME access-type Protocol | |
247 | ("wais")) ; RFC1738 Wide Area Information Servers | |
88a34f43 | 248 | "Valid MIME access-type values.") |
f0d73c14 | 249 | |
c3d9274a | 250 | ;;;###mh-autoload |
0c47b17c BW |
251 | (defun mh-mh-attach-file (filename type description attributes) |
252 | "Add a tag to insert a MIME message part from a file. | |
2dcf34f9 BW |
253 | You are prompted for the FILENAME containing the object, the |
254 | media TYPE if it cannot be determined automatically, and a | |
255 | content DESCRIPTION. In addition, you are also prompted for | |
256 | additional ATTRIBUTES. | |
0c47b17c BW |
257 | |
258 | See also \\[mh-mh-to-mime]." | |
259 | (interactive (let ((filename (mml-minibuffer-read-file "Attach file: "))) | |
c3d9274a BW |
260 | (list |
261 | filename | |
0c47b17c BW |
262 | (mh-minibuffer-read-type filename) |
263 | (mml-minibuffer-read-description) | |
264 | (read-string "Attributes: " | |
c3d9274a BW |
265 | (concat "name=\"" |
266 | (file-name-nondirectory filename) | |
267 | "\""))))) | |
0c47b17c | 268 | (mh-mh-compose-type filename type description attributes)) |
c26cf6c8 | 269 | |
0c47b17c | 270 | (defun mh-mh-compose-type (filename type |
c3d9274a | 271 | &optional description attributes comment) |
0c47b17c | 272 | "Insert an MH-style directive to insert a file. |
2dcf34f9 BW |
273 | The file specified by FILENAME is encoded as TYPE. An optional |
274 | DESCRIPTION is used as the Content-Description field, optional | |
275 | set of ATTRIBUTES and an optional COMMENT can also be included." | |
c26cf6c8 RS |
276 | (beginning-of-line) |
277 | (insert "#" type) | |
278 | (and attributes | |
279 | (insert "; " attributes)) | |
280 | (and comment | |
281 | (insert " (" comment ")")) | |
282 | (insert " [") | |
283 | (and description | |
284 | (insert description)) | |
3fda54a2 | 285 | (insert "] " (expand-file-name filename)) |
c26cf6c8 RS |
286 | (insert "\n")) |
287 | ||
c3d9274a | 288 | ;;;###mh-autoload |
0c47b17c BW |
289 | (defun mh-mh-compose-anon-ftp (host filename type description) |
290 | "Add tag to include anonymous ftp reference to a file. | |
af435184 BW |
291 | |
292 | You can have your message initiate an \"ftp\" transfer when the | |
293 | recipient reads the message. You are prompted for the remote HOST | |
294 | and FILENAME, the media TYPE, and the content DESCRIPTION. | |
bdcfe844 | 295 | |
0c47b17c | 296 | See also \\[mh-mh-to-mime]." |
c26cf6c8 | 297 | (interactive (list |
c3d9274a BW |
298 | (read-string "Remote host: ") |
299 | (read-string "Remote filename: ") | |
0c47b17c BW |
300 | (mh-minibuffer-read-type "DUMMY-FILENAME") |
301 | (mml-minibuffer-read-description))) | |
302 | (mh-mh-compose-external-type "anon-ftp" host filename | |
303 | type description)) | |
c26cf6c8 | 304 | |
c3d9274a | 305 | ;;;###mh-autoload |
0c47b17c BW |
306 | (defun mh-mh-compose-external-compressed-tar (host filename description) |
307 | "Add tag to include anonymous ftp reference to a compressed tar file. | |
af435184 | 308 | |
2dcf34f9 | 309 | In addition to retrieving the file via anonymous \"ftp\" as per |
af435184 | 310 | the command \\[mh-mh-compose-anon-ftp], the file will also be |
2dcf34f9 BW |
311 | uncompressed and untarred. You are prompted for the remote HOST |
312 | and FILENAME and the content DESCRIPTION. | |
0c47b17c BW |
313 | |
314 | See also \\[mh-mh-to-mime]." | |
c26cf6c8 | 315 | (interactive (list |
c3d9274a BW |
316 | (read-string "Remote host: ") |
317 | (read-string "Remote filename: ") | |
0c47b17c BW |
318 | (mml-minibuffer-read-description))) |
319 | (mh-mh-compose-external-type "anon-ftp" host filename | |
320 | "application/octet-stream" | |
321 | description | |
322 | "type=tar; conversions=x-compress" | |
323 | "mode=image")) | |
c26cf6c8 | 324 | |
f0d73c14 | 325 | ;;;###mh-autoload |
0c47b17c BW |
326 | (defun mh-mh-compose-external-type (access-type host filename type |
327 | &optional description | |
328 | attributes parameters | |
329 | comment) | |
330 | "Add tag to refer to a remote file. | |
af435184 | 331 | |
2dcf34f9 BW |
332 | This command is a general utility for referencing external files. |
333 | In fact, all of the other commands that insert directives to | |
334 | access external files call this command. You are prompted for the | |
335 | ACCESS-TYPE, remote HOST and FILENAME, and content TYPE. If you | |
336 | provide a prefix argument, you are also prompted for a content | |
337 | DESCRIPTION, ATTRIBUTES, PARAMETERS, and a COMMENT. | |
0c47b17c BW |
338 | |
339 | See also \\[mh-mh-to-mime]." | |
f0d73c14 | 340 | (interactive (list |
0c47b17c | 341 | (completing-read "Access type: " mh-access-types) |
f0d73c14 | 342 | (read-string "Remote host: ") |
0c47b17c BW |
343 | (read-string "Remote filename: ") |
344 | (mh-minibuffer-read-type "DUMMY-FILENAME") | |
345 | (if current-prefix-arg (mml-minibuffer-read-description)) | |
f0d73c14 | 346 | (if current-prefix-arg (read-string "Attributes: ")) |
0c47b17c | 347 | (if current-prefix-arg (read-string "Parameters: ")) |
f0d73c14 | 348 | (if current-prefix-arg (read-string "Comment: ")))) |
c26cf6c8 RS |
349 | (beginning-of-line) |
350 | (insert "#@" type) | |
351 | (and attributes | |
352 | (insert "; " attributes)) | |
353 | (and comment | |
354 | (insert " (" comment ") ")) | |
355 | (insert " [") | |
356 | (and description | |
357 | (insert description)) | |
358 | (insert "] ") | |
359 | (insert "access-type=" access-type "; ") | |
360 | (insert "site=" host) | |
3fda54a2 | 361 | (insert "; name=" (file-name-nondirectory filename)) |
f0d73c14 BW |
362 | (let ((directory (file-name-directory filename))) |
363 | (and directory | |
364 | (insert "; directory=\"" directory "\""))) | |
0c47b17c BW |
365 | (and parameters |
366 | (insert "; " parameters)) | |
c26cf6c8 RS |
367 | (insert "\n")) |
368 | ||
c3d9274a | 369 | ;;;###mh-autoload |
0c47b17c BW |
370 | (defun mh-mh-forward-message (&optional description folder messages) |
371 | "Add tag to forward a message. | |
2dcf34f9 BW |
372 | You are prompted for a content DESCRIPTION, the name of the |
373 | FOLDER in which the messages to forward are located, and the | |
374 | MESSAGES' numbers. | |
bdcfe844 | 375 | |
0c47b17c | 376 | See also \\[mh-mh-to-mime]." |
c26cf6c8 | 377 | (interactive (list |
0c47b17c | 378 | (mml-minibuffer-read-description) |
c3d9274a | 379 | (mh-prompt-for-folder "Message from" mh-sent-from-folder nil) |
d88a70a0 | 380 | (read-string (concat "Messages" |
f0d73c14 | 381 | (if (numberp mh-sent-from-msg) |
0c47b17c BW |
382 | (format " (default %d): " |
383 | mh-sent-from-msg) | |
d88a70a0 | 384 | ": "))))) |
c26cf6c8 RS |
385 | (beginning-of-line) |
386 | (insert "#forw [") | |
387 | (and description | |
388 | (not (string= description "")) | |
389 | (insert description)) | |
390 | (insert "]") | |
391 | (and folder | |
392 | (not (string= folder "")) | |
393 | (insert " " folder)) | |
847b8219 | 394 | (if (and messages |
c3d9274a | 395 | (not (string= messages ""))) |
c26cf6c8 | 396 | (let ((start (point))) |
c3d9274a BW |
397 | (insert " " messages) |
398 | (subst-char-in-region start (point) ?, ? )) | |
f0d73c14 | 399 | (if (numberp mh-sent-from-msg) |
c3d9274a | 400 | (insert " " (int-to-string mh-sent-from-msg)))) |
c26cf6c8 RS |
401 | (insert "\n")) |
402 | ||
c3d9274a | 403 | ;;;###mh-autoload |
0c47b17c BW |
404 | (defun mh-mh-to-mime (&optional extra-args) |
405 | "Compose MIME message from MH-style directives. | |
d1699462 | 406 | |
2dcf34f9 BW |
407 | Typically, you send a message with attachments just like any other |
408 | message. However, you may take a sneak preview of the MIME encoding if | |
409 | you wish by running this command. | |
0c47b17c | 410 | |
af435184 BW |
411 | If you wish to pass additional arguments to \"mhbuild\" (\"mhn\") |
412 | to affect how it builds your message, use the option | |
413 | `mh-mh-to-mime-args'. For example, you can build a consistency | |
414 | check into the message by setting `mh-mh-to-mime-args' to | |
415 | \"-check\". The recipient of your message can then run \"mhbuild | |
416 | -check\" on the message--\"mhbuild\" (\"mhn\") will complain if | |
417 | the message has been corrupted on the way. This command only | |
418 | consults this option when given a prefix argument EXTRA-ARGS. | |
0c47b17c | 419 | |
d1699462 BW |
420 | The hook `mh-mh-to-mime-hook' is called after the message has been |
421 | formatted. | |
0c47b17c | 422 | |
2dcf34f9 BW |
423 | The effects of this command can be undone by running |
424 | \\[mh-mh-to-mime-undo]." | |
847b8219 | 425 | (interactive "*P") |
0c47b17c | 426 | (mh-mh-quote-unescaped-sharp) |
c26cf6c8 | 427 | (save-buffer) |
0c47b17c | 428 | (message "Running %s..." (if (mh-variant-p 'nmh) "mhbuild" "mhn")) |
a1b4049d | 429 | (cond |
f0d73c14 | 430 | ((mh-variant-p 'nmh) |
a1b4049d | 431 | (mh-exec-cmd-error nil |
0c47b17c BW |
432 | "mhbuild" |
433 | (if extra-args mh-mh-to-mime-args) | |
434 | buffer-file-name)) | |
a1b4049d BW |
435 | (t |
436 | (mh-exec-cmd-error (format "mhdraft=%s" buffer-file-name) | |
0c47b17c BW |
437 | "mhn" |
438 | (if extra-args mh-mh-to-mime-args) | |
439 | buffer-file-name))) | |
c26cf6c8 | 440 | (revert-buffer t t) |
0c47b17c BW |
441 | (message "Running %s...done" (if (mh-variant-p 'nmh) "mhbuild" "mhn")) |
442 | (run-hooks 'mh-mh-to-mime-hook)) | |
c26cf6c8 | 443 | |
0c47b17c | 444 | (defun mh-mh-quote-unescaped-sharp () |
5a4aad03 BW |
445 | "Quote \"#\" characters that haven't been quoted for \"mhbuild\". |
446 | If the \"#\" character is present in the first column, but it isn't | |
2dcf34f9 BW |
447 | part of a MH-style directive then \"mhbuild\" gives an error. |
448 | This function will quote all such characters." | |
f0d73c14 BW |
449 | (save-excursion |
450 | (goto-char (point-min)) | |
451 | (while (re-search-forward "^#" nil t) | |
452 | (beginning-of-line) | |
0c47b17c | 453 | (unless (mh-mh-directive-present-p (point) (line-end-position)) |
f0d73c14 BW |
454 | (insert "#")) |
455 | (goto-char (line-end-position))))) | |
456 | ||
c3d9274a | 457 | ;;;###mh-autoload |
0c47b17c BW |
458 | (defun mh-mh-to-mime-undo (noconfirm) |
459 | "Undo effects of \\[mh-mh-to-mime]. | |
af435184 BW |
460 | |
461 | It does this by reverting to a backup file. You are prompted to | |
462 | confirm this action, but you can avoid the confirmation by adding | |
463 | a prefix argument NOCONFIRM." | |
c26cf6c8 RS |
464 | (interactive "*P") |
465 | (if (null buffer-file-name) | |
466 | (error "Buffer does not seem to be associated with any file")) | |
467 | (let ((backup-strings '("," "#")) | |
c3d9274a | 468 | backup-file) |
c26cf6c8 | 469 | (while (and backup-strings |
c3d9274a BW |
470 | (not (file-exists-p |
471 | (setq backup-file | |
472 | (concat (file-name-directory buffer-file-name) | |
473 | (car backup-strings) | |
474 | (file-name-nondirectory buffer-file-name) | |
475 | ".orig"))))) | |
c26cf6c8 RS |
476 | (setq backup-strings (cdr backup-strings))) |
477 | (or backup-strings | |
f9c53c97 | 478 | (error "Backup file for %s no longer exists" buffer-file-name)) |
c26cf6c8 | 479 | (or noconfirm |
c3d9274a BW |
480 | (yes-or-no-p (format "Revert buffer from file %s? " |
481 | backup-file)) | |
482 | (error "Revert not confirmed")) | |
c26cf6c8 RS |
483 | (let ((buffer-read-only nil)) |
484 | (erase-buffer) | |
485 | (insert-file-contents backup-file)) | |
486 | (after-find-file nil))) | |
60370d40 | 487 | |
924df208 | 488 | ;;;###mh-autoload |
0c47b17c BW |
489 | (defun mh-mh-directive-present-p (&optional begin end) |
490 | "Check if the text between BEGIN and END might be a MH-style directive. | |
2dcf34f9 BW |
491 | The optional argument BEGIN defaults to the beginning of the |
492 | buffer, while END defaults to the the end of the buffer." | |
f0d73c14 BW |
493 | (unless begin (setq begin (point-min))) |
494 | (unless end (setq end (point-max))) | |
924df208 | 495 | (save-excursion |
0c47b17c | 496 | (block 'search-for-mh-directive |
f0d73c14 BW |
497 | (goto-char begin) |
498 | (while (re-search-forward "^#" end t) | |
924df208 BW |
499 | (let ((s (buffer-substring-no-properties (point) (line-end-position)))) |
500 | (cond ((equal s "")) | |
501 | ((string-match "^forw[ \t\n]+" s) | |
0c47b17c | 502 | (return-from 'search-for-mh-directive t)) |
924df208 | 503 | (t (let ((first-token (car (split-string s "[ \t;@]")))) |
f0d73c14 BW |
504 | (when (and first-token |
505 | (string-match mh-media-type-regexp | |
506 | first-token)) | |
0c47b17c | 507 | (return-from 'search-for-mh-directive t))))))) |
924df208 BW |
508 | nil))) |
509 | ||
bdcfe844 BW |
510 | \f |
511 | ||
512 | ;;; MIME composition functions | |
513 | ||
c3d9274a | 514 | ;;;###mh-autoload |
bdcfe844 | 515 | (defun mh-mml-to-mime () |
0c47b17c | 516 | "Compose MIME message from MML tags. |
2dcf34f9 BW |
517 | |
518 | Typically, you send a message with attachments just like any | |
519 | other message. However, you may take a sneak preview of the MIME | |
520 | encoding if you wish by running this command. | |
0c47b17c BW |
521 | |
522 | This action can be undone by running \\[undo]." | |
bdcfe844 | 523 | (interactive) |
a66894d8 | 524 | (require 'message) |
0c47b17c | 525 | (when mh-pgp-support-flag ;; This is only needed for PGP |
bdcfe844 | 526 | (message-options-set-recipient)) |
f0d73c14 BW |
527 | (let ((saved-text (buffer-string)) |
528 | (buffer (current-buffer)) | |
529 | (modified-flag (buffer-modified-p))) | |
530 | (condition-case err (mml-to-mime) | |
531 | (error | |
532 | (with-current-buffer buffer | |
533 | (delete-region (point-min) (point-max)) | |
534 | (insert saved-text) | |
535 | (set-buffer-modified-p modified-flag)) | |
536 | (error (error-message-string err)))))) | |
bdcfe844 | 537 | |
c3d9274a | 538 | ;;;###mh-autoload |
bdcfe844 BW |
539 | (defun mh-mml-forward-message (description folder message) |
540 | "Forward a message as attachment. | |
2dcf34f9 BW |
541 | |
542 | The function will prompt the user for a DESCRIPTION, a FOLDER and | |
543 | MESSAGE number." | |
f0d73c14 | 544 | (let ((msg (if (and (equal message "") (numberp mh-sent-from-msg)) |
bdcfe844 | 545 | mh-sent-from-msg |
8d2aa237 | 546 | (string-to-number message)))) |
bdcfe844 BW |
547 | (cond ((integerp msg) |
548 | (if (string= "" description) | |
549 | ;; Rationale: mml-attach-file constructs a malformed composition | |
550 | ;; if the description string is empty. This fixes SF #625168. | |
551 | (mml-attach-file (format "%s%s/%d" | |
552 | mh-user-path (substring folder 1) msg) | |
553 | "message/rfc822") | |
554 | (mml-attach-file (format "%s%s/%d" | |
555 | mh-user-path (substring folder 1) msg) | |
556 | "message/rfc822" | |
924df208 | 557 | description))) |
f9c53c97 | 558 | (t (error "The message number, %s, is not a integer" msg))))) |
bdcfe844 | 559 | |
f0d73c14 BW |
560 | (defvar mh-mml-cryptographic-method-history ()) |
561 | ||
562 | ;;;###mh-autoload | |
563 | (defun mh-mml-query-cryptographic-method () | |
564 | "Read the cryptographic method to use." | |
565 | (if current-prefix-arg | |
566 | (let ((def (or (car mh-mml-cryptographic-method-history) | |
567 | mh-mml-method-default))) | |
0c47b17c | 568 | (completing-read (format "Method (default %s): " def) |
f0d73c14 BW |
569 | '(("pgp") ("pgpmime") ("smime")) |
570 | nil t nil 'mh-mml-cryptographic-method-history def)) | |
571 | mh-mml-method-default)) | |
572 | ||
c3d9274a | 573 | ;;;###mh-autoload |
bdcfe844 | 574 | (defun mh-mml-attach-file (&optional disposition) |
0c47b17c | 575 | "Add a tag to insert a MIME message part from a file. |
2dcf34f9 BW |
576 | |
577 | You are prompted for the filename containing the object, the | |
578 | media type if it cannot be determined automatically, a content | |
579 | description and the DISPOSITION of the attachment. | |
bdcfe844 | 580 | |
0c47b17c | 581 | This is basically `mml-attach-file' from Gnus, modified such that a prefix |
5a4aad03 | 582 | argument yields an \"inline\" disposition and Content-Type is determined |
bdcfe844 BW |
583 | automatically." |
584 | (let* ((file (mml-minibuffer-read-file "Attach file: ")) | |
0c47b17c | 585 | (type (mh-minibuffer-read-type file)) |
bdcfe844 BW |
586 | (description (mml-minibuffer-read-description)) |
587 | (dispos (or disposition | |
0c47b17c | 588 | (mml-minibuffer-read-disposition type)))) |
bdcfe844 | 589 | (mml-insert-empty-tag 'part 'type type 'filename file |
924df208 | 590 | 'disposition dispos 'description description))) |
bdcfe844 | 591 | |
04f6a2d1 BW |
592 | ;; Shush compiler. |
593 | (eval-when-compile (defvar mh-identity-pgg-default-user-id)) | |
eccf9613 | 594 | |
f0d73c14 | 595 | (defun mh-secure-message (method mode &optional identity) |
0c47b17c | 596 | "Add tag to encrypt or sign message. |
2dcf34f9 | 597 | |
f0d73c14 BW |
598 | METHOD should be one of: \"pgpmime\", \"pgp\", \"smime\". |
599 | MODE should be one of: \"sign\", \"encrypt\", \"signencrypt\", \"none\". | |
600 | IDENTITY is optionally the default-user-id to use." | |
0c47b17c BW |
601 | (if (not mh-pgp-support-flag) |
602 | (error "Your version of Gnus does not support PGP/GPG") | |
f0d73c14 BW |
603 | ;; Check the arguments |
604 | (let ((valid-methods (list "pgpmime" "pgp" "smime")) | |
605 | (valid-modes (list "sign" "encrypt" "signencrypt" "none"))) | |
606 | (if (not (member method valid-methods)) | |
f9c53c97 | 607 | (error "Method %s is invalid" method)) |
f0d73c14 | 608 | (if (not (member mode valid-modes)) |
f9c53c97 | 609 | (error "Mode %s is invalid" mode)) |
f0d73c14 BW |
610 | (mml-unsecure-message) |
611 | (if (not (string= mode "none")) | |
612 | (save-excursion | |
613 | (goto-char (point-min)) | |
614 | (mh-goto-header-end 1) | |
615 | (if mh-identity-pgg-default-user-id | |
616 | (mml-insert-tag 'secure 'method method 'mode mode | |
617 | 'sender mh-identity-pgg-default-user-id) | |
618 | (mml-insert-tag 'secure 'method method 'mode mode))))))) | |
bdcfe844 | 619 | |
c3d9274a | 620 | ;;;###mh-autoload |
285d1e0c MB |
621 | (defun mh-mml-unsecure-message () |
622 | "Remove any secure message tags." | |
623 | (interactive) | |
0c47b17c BW |
624 | (if (not mh-pgp-support-flag) |
625 | (error "Your version of Gnus does not support PGP/GPG") | |
f0d73c14 BW |
626 | (mml-unsecure-message))) |
627 | ||
628 | ;;;###mh-autoload | |
629 | (defun mh-mml-secure-message-sign (method) | |
0c47b17c | 630 | "Add tag to sign the message. |
2dcf34f9 BW |
631 | |
632 | A proper multipart message is created for you when you send the | |
af435184 | 633 | message. Use the command \\[mh-mml-unsecure-message] to remove |
2dcf34f9 | 634 | this tag. Use a prefix argument METHOD to be prompted for one of |
4023e353 | 635 | the possible security methods (see `mh-mml-method-default')." |
f0d73c14 BW |
636 | (interactive (list (mh-mml-query-cryptographic-method))) |
637 | (mh-secure-message method "sign" mh-identity-pgg-default-user-id)) | |
638 | ||
639 | ;;;###mh-autoload | |
640 | (defun mh-mml-secure-message-encrypt (method) | |
0c47b17c | 641 | "Add tag to encrypt the message. |
2dcf34f9 BW |
642 | |
643 | A proper multipart message is created for you when you send the | |
af435184 | 644 | message. Use the command \\[mh-mml-unsecure-message] to remove |
2dcf34f9 | 645 | this tag. Use a prefix argument METHOD to be prompted for one of |
4023e353 | 646 | the possible security methods (see `mh-mml-method-default')." |
f0d73c14 BW |
647 | (interactive (list (mh-mml-query-cryptographic-method))) |
648 | (mh-secure-message method "encrypt" mh-identity-pgg-default-user-id)) | |
649 | ||
650 | ;;;###mh-autoload | |
651 | (defun mh-mml-secure-message-signencrypt (method) | |
0c47b17c | 652 | "Add tag to encrypt and sign the message. |
2dcf34f9 BW |
653 | |
654 | A proper multipart message is created for you when you send the | |
af435184 | 655 | message. Use the command \\[mh-mml-unsecure-message] to remove |
2dcf34f9 | 656 | this tag. Use a prefix argument METHOD to be prompted for one of |
4023e353 | 657 | the possible security methods (see `mh-mml-method-default')." |
f0d73c14 BW |
658 | (interactive (list (mh-mml-query-cryptographic-method))) |
659 | (mh-secure-message method "signencrypt" mh-identity-pgg-default-user-id)) | |
924df208 BW |
660 | |
661 | ;;;###mh-autoload | |
0c47b17c BW |
662 | (defun mh-mml-tag-present-p () |
663 | "Check if the current buffer has text which may be a MML tag." | |
924df208 BW |
664 | (save-excursion |
665 | (goto-char (point-min)) | |
666 | (re-search-forward | |
98b7b7ed BW |
667 | (concat |
668 | "\\(<#\\(mml\\|part\\)\\(.\\|\n\\)*>[ \n\t]*<#/\\(mml\\|part\\)>\\|" | |
669 | "^<#secure.+>$\\)") | |
924df208 | 670 | nil t))) |
bdcfe844 BW |
671 | |
672 | \f | |
673 | ||
bdcfe844 BW |
674 | ;;; MIME cleanup |
675 | ||
c3d9274a | 676 | ;;;###mh-autoload |
bdcfe844 BW |
677 | (defun mh-mime-cleanup () |
678 | "Free the decoded MIME parts." | |
679 | (let ((mime-data (gethash (current-buffer) mh-globals-hash))) | |
680 | ;; This is for Emacs, what about XEmacs? | |
924df208 | 681 | (mh-funcall-if-exists remove-images (point-min) (point-max)) |
bdcfe844 BW |
682 | (when mime-data |
683 | (mm-destroy-parts (mh-mime-handles mime-data)) | |
684 | (remhash (current-buffer) mh-globals-hash)))) | |
685 | ||
c3d9274a | 686 | ;;;###mh-autoload |
bdcfe844 | 687 | (defun mh-destroy-postponed-handles () |
0c47b17c | 688 | "Free MIME data for externally displayed MIME parts." |
bdcfe844 BW |
689 | (let ((mime-data (mh-buffer-data))) |
690 | (when mime-data | |
691 | (mm-destroy-parts (mh-mime-handles mime-data))) | |
692 | (remhash (current-buffer) mh-globals-hash))) | |
693 | ||
694 | (defun mh-handle-set-external-undisplayer (folder handle function) | |
695 | "Replacement for `mm-handle-set-external-undisplayer'. | |
2dcf34f9 BW |
696 | |
697 | This is only called in recent versions of Gnus. The MIME handles | |
698 | are stored in data structures corresponding to MH-E folder buffer | |
699 | FOLDER instead of in Gnus (as in the original). The MIME part, | |
700 | HANDLE is associated with the undisplayer FUNCTION." | |
bdcfe844 BW |
701 | (if (mm-keep-viewer-alive-p handle) |
702 | (let ((new-handle (copy-sequence handle))) | |
c3d9274a BW |
703 | (mm-handle-set-undisplayer new-handle function) |
704 | (mm-handle-set-undisplayer handle nil) | |
bdcfe844 BW |
705 | (save-excursion |
706 | (set-buffer folder) | |
707 | (push new-handle (mh-mime-handles (mh-buffer-data))))) | |
708 | (mm-handle-set-undisplayer handle function))) | |
709 | ||
710 | \f | |
711 | ||
712 | ;;; MIME transformations | |
c3d9274a | 713 | (eval-when-compile (require 'font-lock)) |
bdcfe844 | 714 | |
c3d9274a | 715 | ;;;###mh-autoload |
bdcfe844 BW |
716 | (defun mh-add-missing-mime-version-header () |
717 | "Some mail programs don't put a MIME-Version header. | |
2dcf34f9 BW |
718 | I have seen this only in spam, so maybe we shouldn't fix |
719 | this ;-)" | |
bdcfe844 BW |
720 | (save-excursion |
721 | (goto-char (point-min)) | |
a66894d8 BW |
722 | (re-search-forward "\n\n" nil t) |
723 | (save-restriction | |
724 | (narrow-to-region (point-min) (point)) | |
725 | (when (and (message-fetch-field "content-type") | |
726 | (not (message-fetch-field "mime-version"))) | |
727 | (goto-char (point-min)) | |
bdcfe844 BW |
728 | (insert "MIME-Version: 1.0\n"))))) |
729 | ||
a66894d8 BW |
730 | (defun mh-small-show-buffer-p () |
731 | "Check if show buffer is small. | |
2dcf34f9 BW |
732 | This is used to decide if smileys and graphical emphasis will be |
733 | displayed." | |
a66894d8 BW |
734 | (let ((max nil)) |
735 | (when (and (boundp 'font-lock-maximum-size) font-lock-maximum-size) | |
736 | (cond ((numberp font-lock-maximum-size) | |
737 | (setq max font-lock-maximum-size)) | |
738 | ((listp font-lock-maximum-size) | |
739 | (setq max (cdr (or (assoc 'mh-show-mode font-lock-maximum-size) | |
740 | (assoc t font-lock-maximum-size))))))) | |
741 | (or (not (numberp max)) (>= (/ max 8) (buffer-size))))) | |
742 | ||
c3d9274a | 743 | ;;;###mh-autoload |
bdcfe844 | 744 | (defun mh-display-smileys () |
0c47b17c | 745 | "Display smileys." |
a66894d8 BW |
746 | (when (and mh-graphical-smileys-flag (mh-small-show-buffer-p)) |
747 | (mh-funcall-if-exists smiley-region (point-min) (point-max)))) | |
bdcfe844 | 748 | |
c3d9274a | 749 | ;;;###mh-autoload |
bdcfe844 | 750 | (defun mh-display-emphasis () |
0c47b17c | 751 | "Display graphical emphasis." |
a66894d8 | 752 | (when (and mh-graphical-emphasis-flag (mh-small-show-buffer-p)) |
c3d9274a | 753 | (flet ((article-goto-body ())) ; shadow this function to do nothing |
bdcfe844 BW |
754 | (save-excursion |
755 | (goto-char (point-min)) | |
756 | (article-emphasize))))) | |
757 | ||
758 | ;; Copied from gnus-art.el (should be checked for other cool things that can | |
759 | ;; be added to the buttons) | |
760 | (defvar mh-mime-button-commands | |
761 | '((mh-press-button "\r" "Toggle Display"))) | |
762 | (defvar mh-mime-button-map | |
763 | (let ((map (make-sparse-keymap))) | |
764 | (unless (>= (string-to-number emacs-version) 21) | |
765 | ;; XEmacs doesn't care. | |
766 | (set-keymap-parent map mh-show-mode-map)) | |
924df208 BW |
767 | (mh-do-in-gnu-emacs |
768 | (define-key map [mouse-2] 'mh-push-button)) | |
769 | (mh-do-in-xemacs | |
770 | (define-key map '(button2) 'mh-push-button)) | |
bdcfe844 BW |
771 | (dolist (c mh-mime-button-commands) |
772 | (define-key map (cadr c) (car c))) | |
773 | map)) | |
774 | (defvar mh-mime-button-line-format-alist | |
775 | '((?T long-type ?s) | |
776 | (?d description ?s) | |
777 | (?p index ?s) | |
778 | (?e dots ?s))) | |
779 | (defvar mh-mime-button-line-format "%{%([%p. %d%T]%)%}%e\n") | |
780 | (defvar mh-mime-security-button-pressed nil) | |
781 | (defvar mh-mime-security-button-line-format "%{%([[%t:%i]%D]%)%}\n") | |
782 | (defvar mh-mime-security-button-end-line-format "%{%([[End of %t]%D]%)%}\n") | |
783 | (defvar mh-mime-security-button-line-format-alist | |
784 | '((?t type ?s) | |
785 | (?i info ?s) | |
786 | (?d details ?s) | |
787 | (?D pressed-details ?s))) | |
788 | (defvar mh-mime-security-button-map | |
789 | (let ((map (make-sparse-keymap))) | |
790 | (unless (>= (string-to-number emacs-version) 21) | |
791 | (set-keymap-parent map mh-show-mode-map)) | |
792 | (define-key map "\r" 'mh-press-button) | |
924df208 BW |
793 | (mh-do-in-gnu-emacs |
794 | (define-key map [mouse-2] 'mh-push-button)) | |
795 | (mh-do-in-xemacs | |
796 | (define-key map '(button2) 'mh-push-button)) | |
bdcfe844 BW |
797 | map)) |
798 | ||
799 | (defvar mh-mime-save-parts-directory nil | |
800 | "Default to use for `mh-mime-save-parts-default-directory'. | |
801 | Set from last use.") | |
802 | ||
c3d9274a | 803 | ;;;###mh-autoload |
553fb735 BW |
804 | (defun mh-mime-save-parts (prompt) |
805 | "Save attachments. | |
806 | ||
2dcf34f9 BW |
807 | You can save all of the attachments at once with this command. |
808 | The attachments are saved in the directory specified by the | |
809 | option `mh-mime-save-parts-default-directory' unless you use a | |
810 | prefix argument PROMPT in which case you are prompted for the | |
811 | directory. These directories may be superseded by MH profile | |
812 | components, since this function calls on \"mhstore\" (\"mhn\") to | |
813 | do the work." | |
bdcfe844 BW |
814 | (interactive "P") |
815 | (let ((msg (if (eq major-mode 'mh-show-mode) | |
816 | (mh-show-buffer-message-number) | |
817 | (mh-get-msg-num t))) | |
818 | (folder (if (eq major-mode 'mh-show-mode) | |
819 | mh-show-folder-buffer | |
820 | mh-current-folder)) | |
f0d73c14 | 821 | (command (if (mh-variant-p 'nmh) "mhstore" "mhn")) |
bdcfe844 BW |
822 | (directory |
823 | (cond | |
553fb735 | 824 | ((and (or prompt |
bdcfe844 BW |
825 | (equal nil mh-mime-save-parts-default-directory) |
826 | (equal t mh-mime-save-parts-default-directory)) | |
827 | (not mh-mime-save-parts-directory)) | |
f0d73c14 | 828 | (read-file-name "Store in directory: " nil nil t nil)) |
553fb735 | 829 | ((and (or prompt |
bdcfe844 BW |
830 | (equal t mh-mime-save-parts-default-directory)) |
831 | mh-mime-save-parts-directory) | |
832 | (read-file-name (format | |
078cb314 | 833 | "Store in directory (default %s): " |
bdcfe844 BW |
834 | mh-mime-save-parts-directory) |
835 | "" mh-mime-save-parts-directory t "")) | |
836 | ((stringp mh-mime-save-parts-default-directory) | |
837 | mh-mime-save-parts-default-directory) | |
838 | (t | |
839 | mh-mime-save-parts-directory)))) | |
840 | (if (and (equal directory "") mh-mime-save-parts-directory) | |
841 | (setq directory mh-mime-save-parts-directory)) | |
842 | (if (not (file-directory-p directory)) | |
f0d73c14 | 843 | (message "No directory specified") |
bdcfe844 BW |
844 | (if (equal nil mh-mime-save-parts-default-directory) |
845 | (setq mh-mime-save-parts-directory directory)) | |
846 | (save-excursion | |
924df208 | 847 | (set-buffer (get-buffer-create mh-log-buffer)) |
bdcfe844 BW |
848 | (cd directory) |
849 | (setq mh-mime-save-parts-directory directory) | |
924df208 BW |
850 | (let ((initial-size (mh-truncate-log-buffer))) |
851 | (apply 'call-process | |
852 | (expand-file-name command mh-progs) nil t nil | |
853 | (mh-list-to-string (list folder msg "-auto"))) | |
854 | (if (> (buffer-size) initial-size) | |
855 | (save-window-excursion | |
856 | (switch-to-buffer-other-window mh-log-buffer) | |
857 | (sit-for 3)))))))) | |
bdcfe844 BW |
858 | |
859 | ;; Avoid errors if gnus-sum isn't loaded yet... | |
860 | (defvar gnus-newsgroup-charset nil) | |
861 | (defvar gnus-newsgroup-name nil) | |
862 | ||
924df208 BW |
863 | (defun mh-decode-message-body () |
864 | "Decode message based on charset. | |
865 | If message has been encoded for transfer take that into account." | |
a66894d8 BW |
866 | (let (ct charset cte) |
867 | (goto-char (point-min)) | |
868 | (re-search-forward "\n\n" nil t) | |
869 | (save-restriction | |
870 | (narrow-to-region (point-min) (point)) | |
871 | (setq ct (ignore-errors (mail-header-parse-content-type | |
872 | (message-fetch-field "Content-Type" t))) | |
873 | charset (mail-content-type-get ct 'charset) | |
874 | cte (message-fetch-field "Content-Transfer-Encoding"))) | |
924df208 BW |
875 | (when (stringp cte) (setq cte (mail-header-strip cte))) |
876 | (when (or (not ct) (equal (car ct) "text/plain")) | |
877 | (save-restriction | |
878 | (narrow-to-region (min (1+ (mh-mail-header-end)) (point-max)) | |
879 | (point-max)) | |
880 | (mm-decode-body charset | |
881 | (and cte (intern (downcase | |
882 | (gnus-strip-whitespace cte)))) | |
883 | (car ct)))))) | |
884 | ||
d103d8b3 BW |
885 | ;;;###mh-autoload |
886 | (defun mh-toggle-mh-decode-mime-flag () | |
553fb735 | 887 | "Toggle the value of `mh-decode-mime-flag'." |
eccf9613 | 888 | (interactive) |
d103d8b3 BW |
889 | (setq mh-decode-mime-flag (not mh-decode-mime-flag)) |
890 | (mh-show nil t) | |
553fb735 BW |
891 | (message "%s" (if mh-decode-mime-flag |
892 | "Processing attachments normally" | |
893 | "Displaying raw message"))) | |
d103d8b3 | 894 | |
924df208 BW |
895 | ;;;###mh-autoload |
896 | (defun mh-decode-message-header () | |
897 | "Decode RFC2047 encoded message header fields." | |
898 | (when mh-decode-mime-flag | |
899 | (let ((buffer-read-only nil)) | |
900 | (rfc2047-decode-region (point-min) (mh-mail-header-end))))) | |
901 | ||
c3d9274a | 902 | ;;;###mh-autoload |
bdcfe844 BW |
903 | (defun mh-mime-display (&optional pre-dissected-handles) |
904 | "Display (and possibly decode) MIME handles. | |
2dcf34f9 BW |
905 | Optional argument, PRE-DISSECTED-HANDLES is a list of MIME |
906 | handles. If present they are displayed otherwise the buffer is | |
907 | parsed and then displayed." | |
bdcfe844 | 908 | (let ((handles ()) |
924df208 BW |
909 | (folder mh-show-folder-buffer) |
910 | (raw-message-data (buffer-string))) | |
c3d9274a BW |
911 | (flet ((mm-handle-set-external-undisplayer |
912 | (handle function) | |
913 | (mh-handle-set-external-undisplayer folder handle function))) | |
924df208 BW |
914 | (goto-char (point-min)) |
915 | (unless (search-forward "\n\n" nil t) | |
916 | (goto-char (point-max)) | |
917 | (insert "\n\n")) | |
918 | ||
919 | (condition-case err | |
920 | (progn | |
921 | ;; If needed dissect the current buffer | |
922 | (if pre-dissected-handles | |
923 | (setq handles pre-dissected-handles) | |
9ac2e4e5 MB |
924 | (if (setq handles (mm-dissect-buffer nil)) |
925 | (when (fboundp 'mm-uu-dissect-text-parts) | |
926 | (mm-uu-dissect-text-parts handles)) | |
927 | (setq handles (mm-uu-dissect))) | |
924df208 BW |
928 | (setf (mh-mime-handles (mh-buffer-data)) |
929 | (mm-merge-handles handles | |
930 | (mh-mime-handles (mh-buffer-data)))) | |
931 | (unless handles (mh-decode-message-body))) | |
932 | ||
f0d73c14 BW |
933 | (cond ((and handles |
934 | (or (not (stringp (car handles))) (cdr handles))) | |
935 | ;; Goto start of message body | |
936 | (goto-char (point-min)) | |
937 | (or (search-forward "\n\n" nil t) (goto-char (point-max))) | |
bdcfe844 | 938 | |
f0d73c14 BW |
939 | ;; Delete the body |
940 | (delete-region (point) (point-max)) | |
bdcfe844 | 941 | |
f0d73c14 BW |
942 | ;; Display the MIME handles |
943 | (mh-mime-display-part handles)) | |
944 | (t (mh-signature-highlight)))) | |
924df208 | 945 | (error |
7094eefe | 946 | (message "Could not display body: %s" (error-message-string err)) |
924df208 BW |
947 | (delete-region (point-min) (point-max)) |
948 | (insert raw-message-data)))))) | |
bdcfe844 BW |
949 | |
950 | (defun mh-mime-display-part (handle) | |
951 | "Decides the viewer to call based on the type of HANDLE." | |
952 | (cond ((null handle) nil) | |
953 | ((not (stringp (car handle))) | |
954 | (mh-mime-display-single handle)) | |
955 | ((equal (car handle) "multipart/alternative") | |
956 | (mh-mime-display-alternative (cdr handle))) | |
0c47b17c | 957 | ((and mh-pgp-support-flag |
bdcfe844 BW |
958 | (or (equal (car handle) "multipart/signed") |
959 | (equal (car handle) "multipart/encrypted"))) | |
960 | (mh-mime-display-security handle)) | |
961 | (t (mh-mime-display-mixed (cdr handle))))) | |
962 | ||
963 | (defun mh-mime-display-alternative (handles) | |
964 | "Choose among the alternatives, HANDLES the part that will be displayed. | |
965 | If no part is preferred then all the parts are displayed." | |
a66894d8 BW |
966 | (let* ((preferred (mm-preferred-alternative handles)) |
967 | (others (loop for x in handles unless (eq x preferred) collect x))) | |
bdcfe844 | 968 | (cond ((and preferred (stringp (car preferred))) |
a66894d8 BW |
969 | (mh-mime-display-part preferred) |
970 | (mh-mime-maybe-display-alternatives others)) | |
bdcfe844 BW |
971 | (preferred |
972 | (save-restriction | |
973 | (narrow-to-region (point) (if (eobp) (point) (1+ (point)))) | |
c3d9274a | 974 | (mh-mime-display-single preferred) |
a66894d8 | 975 | (mh-mime-maybe-display-alternatives others) |
bdcfe844 BW |
976 | (goto-char (point-max)))) |
977 | (t (mh-mime-display-mixed handles))))) | |
978 | ||
a66894d8 BW |
979 | (defun mh-mime-maybe-display-alternatives (alternatives) |
980 | "Show buttons for ALTERNATIVES. | |
2dcf34f9 BW |
981 | If `mh-mime-display-alternatives-flag' is non-nil then display |
982 | buttons for alternative parts that are usually suppressed." | |
a66894d8 BW |
983 | (when (and mh-display-buttons-for-alternatives-flag alternatives) |
984 | (insert "\n----------------------------------------------------\n") | |
985 | (insert "Alternatives:\n") | |
986 | (dolist (x alternatives) | |
987 | (insert "\n") | |
988 | (mh-insert-mime-button x (mh-mime-part-index x) nil)) | |
989 | (insert "\n----------------------------------------------------\n"))) | |
990 | ||
bdcfe844 BW |
991 | (defun mh-mime-display-mixed (handles) |
992 | "Display the list of MIME parts, HANDLES recursively." | |
993 | (mapcar #'mh-mime-display-part handles)) | |
994 | ||
995 | (defun mh-mime-part-index (handle) | |
996 | "Generate the button number for MIME part, HANDLE. | |
2dcf34f9 BW |
997 | Notice that a hash table is used to display the same number when |
998 | buttons need to be displayed multiple times (for instance when | |
999 | nested messages are opened)." | |
bdcfe844 BW |
1000 | (or (gethash handle (mh-mime-part-index-hash (mh-buffer-data))) |
1001 | (setf (gethash handle (mh-mime-part-index-hash (mh-buffer-data))) | |
1002 | (incf (mh-mime-parts-count (mh-buffer-data)))))) | |
1003 | ||
bdcfe844 BW |
1004 | (defun mh-small-image-p (handle) |
1005 | "Decide whether HANDLE is a \"small\" image that can be displayed inline. | |
1006 | This is only useful if a Content-Disposition header is not present." | |
1007 | (let ((media-test (caddr (assoc (car (mm-handle-type handle)) | |
1008 | mh-mm-inline-media-tests))) | |
1009 | (mm-inline-large-images t)) | |
1010 | (and media-test | |
1011 | (equal (mm-handle-media-supertype handle) "image") | |
c3d9274a BW |
1012 | (funcall media-test handle) ; Since mm-inline-large-images is T, |
1013 | ; this only tells us if the image is | |
1014 | ; something that emacs can display | |
bdcfe844 | 1015 | (let* ((image (mm-get-image handle))) |
a66894d8 BW |
1016 | (or (mh-do-in-xemacs |
1017 | (and (mh-funcall-if-exists glyphp image) | |
1018 | (< (glyph-width image) | |
1019 | (or mh-max-inline-image-width (window-pixel-width))) | |
1020 | (< (glyph-height image) | |
1021 | (or mh-max-inline-image-height | |
1022 | (window-pixel-height))))) | |
1023 | (mh-do-in-gnu-emacs | |
1024 | (let ((size (mh-funcall-if-exists image-size image))) | |
1025 | (and size | |
1026 | (< (cdr size) (or mh-max-inline-image-height | |
1027 | (1- (window-height)))) | |
1028 | (< (car size) (or mh-max-inline-image-width | |
1029 | (window-width))))))))))) | |
bdcfe844 | 1030 | |
c3d9274a BW |
1031 | (defun mh-inline-vcard-p (handle) |
1032 | "Decide if HANDLE is a vcard that must be displayed inline." | |
1033 | (let ((type (mm-handle-type handle))) | |
924df208 BW |
1034 | (and (or (featurep 'vcard) (fboundp 'vcard-pretty-print)) |
1035 | (consp type) | |
c3d9274a BW |
1036 | (equal (car type) "text/x-vcard") |
1037 | (save-excursion | |
1038 | (save-restriction | |
1039 | (widen) | |
1040 | (goto-char (point-min)) | |
f0d73c14 | 1041 | (not (mh-signature-separator-p))))))) |
c3d9274a | 1042 | |
bdcfe844 BW |
1043 | (defun mh-mime-display-single (handle) |
1044 | "Display a leaf node, HANDLE in the MIME tree." | |
1045 | (let* ((type (mm-handle-media-type handle)) | |
1046 | (small-image-flag (mh-small-image-p handle)) | |
1047 | (attachmentp (equal (car (mm-handle-disposition handle)) | |
1048 | "attachment")) | |
1049 | (inlinep (and (equal (car (mm-handle-disposition handle)) "inline") | |
1050 | (mm-inlinable-p handle) | |
1051 | (mm-inlined-p handle))) | |
c3d9274a BW |
1052 | (displayp (or inlinep ; show if inline OR |
1053 | (mh-inline-vcard-p handle); inline vcard OR | |
1054 | (and (not attachmentp) ; if not an attachment | |
1055 | (or small-image-flag ; and small image | |
1056 | ; and user wants inline | |
bdcfe844 BW |
1057 | (and (not (equal |
1058 | (mm-handle-media-supertype handle) | |
1059 | "image")) | |
1060 | (mm-inlinable-p handle) | |
1061 | (mm-inlined-p handle))))))) | |
1062 | (save-restriction | |
1063 | (narrow-to-region (point) (if (eobp) (point) (1+ (point)))) | |
0c47b17c | 1064 | (cond ((and mh-pgp-support-flag |
bdcfe844 | 1065 | (equal type "application/pgp-signature")) |
c3d9274a | 1066 | nil) ; skip signatures as they are already handled... |
bdcfe844 BW |
1067 | ((not displayp) |
1068 | (insert "\n") | |
1069 | (mh-insert-mime-button handle (mh-mime-part-index handle) nil)) | |
1070 | ((and displayp (not mh-display-buttons-for-inline-parts-flag)) | |
f0d73c14 BW |
1071 | (or (mm-display-part handle) (mm-display-part handle)) |
1072 | (mh-signature-highlight handle)) | |
bdcfe844 BW |
1073 | ((and displayp mh-display-buttons-for-inline-parts-flag) |
1074 | (insert "\n") | |
1075 | (mh-insert-mime-button handle (mh-mime-part-index handle) nil) | |
1076 | (forward-line -1) | |
1077 | (mh-mm-display-part handle))) | |
1078 | (goto-char (point-max))))) | |
1079 | ||
f0d73c14 BW |
1080 | (defun mh-signature-highlight (&optional handle) |
1081 | "Highlight message signature in HANDLE. | |
2dcf34f9 BW |
1082 | The optional argument, HANDLE is a MIME handle if the function is |
1083 | being used to highlight the signature in a MIME part." | |
f0d73c14 BW |
1084 | (let ((regexp |
1085 | (cond ((not handle) "^-- $") | |
1086 | ((not (and (equal (mm-handle-media-supertype handle) "text") | |
1087 | (equal (mm-handle-media-subtype handle) "html"))) | |
1088 | "^-- $") | |
1089 | ((eq (mh-mm-text-html-renderer) 'lynx) "^ --$") | |
1090 | (t "^--$")))) | |
1091 | (save-excursion | |
1092 | (goto-char (point-max)) | |
1093 | (when (re-search-backward regexp nil t) | |
1094 | (mh-do-in-gnu-emacs | |
1095 | (let ((ov (make-overlay (point) (point-max)))) | |
44d55491 | 1096 | (overlay-put ov 'face 'mh-show-signature) |
f0d73c14 BW |
1097 | (overlay-put ov 'evaporate t))) |
1098 | (mh-do-in-xemacs | |
1099 | (set-extent-property (make-extent (point) (point-max)) | |
44d55491 | 1100 | 'face 'mh-show-signature)))))) |
f0d73c14 | 1101 | |
924df208 BW |
1102 | (mh-do-in-xemacs |
1103 | (defvar dots) | |
1104 | (defvar type)) | |
1105 | ||
bdcfe844 BW |
1106 | (defun mh-insert-mime-button (handle index displayed) |
1107 | "Insert MIME button for HANDLE. | |
2dcf34f9 BW |
1108 | INDEX is the part number that will be DISPLAYED. It is also used |
1109 | by commands like \"K v\" which operate on individual MIME parts." | |
bdcfe844 BW |
1110 | ;; The button could be displayed by a previous decode. In that case |
1111 | ;; undisplay it if we need a hidden button. | |
1112 | (when (and (mm-handle-displayed-p handle) (not displayed)) | |
1113 | (mm-display-part handle)) | |
1114 | (let ((name (or (mail-content-type-get (mm-handle-type handle) 'name) | |
1115 | (mail-content-type-get (mm-handle-disposition handle) | |
1116 | 'filename) | |
1117 | (mail-content-type-get (mm-handle-type handle) 'url) | |
1118 | "")) | |
1119 | (type (mm-handle-media-type handle)) | |
1120 | (description (mail-decode-encoded-word-string | |
1121 | (or (mm-handle-description handle) ""))) | |
1122 | (dots (if (or displayed (mm-handle-displayed-p handle)) " " "...")) | |
1123 | long-type begin end) | |
1124 | (if (string-match ".*/" name) (setq name (substring name (match-end 0)))) | |
1125 | (setq long-type (concat type (and (not (equal name "")) | |
1126 | (concat "; " name)))) | |
1127 | (unless (equal description "") | |
1128 | (setq long-type (concat " --- " long-type))) | |
1129 | (unless (bolp) (insert "\n")) | |
1130 | (setq begin (point)) | |
1131 | (gnus-eval-format | |
1132 | mh-mime-button-line-format mh-mime-button-line-format-alist | |
1133 | `(,@(gnus-local-map-property mh-mime-button-map) | |
c3d9274a BW |
1134 | mh-callback mh-mm-display-part |
1135 | mh-part ,index | |
1136 | mh-data ,handle)) | |
bdcfe844 BW |
1137 | (setq end (point)) |
1138 | (widget-convert-button | |
1139 | 'link begin end | |
1140 | :mime-handle handle | |
1141 | :action 'mh-widget-press-button | |
1142 | :button-keymap mh-mime-button-map | |
1143 | :help-echo | |
f0d73c14 BW |
1144 | "Mouse-2 click or press RET (in show buffer) to toggle display") |
1145 | (dolist (ov (mh-funcall-if-exists overlays-in begin end)) | |
1146 | (mh-funcall-if-exists overlay-put ov 'evaporate t)))) | |
bdcfe844 BW |
1147 | |
1148 | ;; There is a bug in Gnus inline image display due to which an extra line | |
1149 | ;; gets inserted every time it is viewed. To work around that problem we are | |
1150 | ;; using an extra property 'mh-region to remember the region that is added | |
1151 | ;; when the button is clicked. The region is then deleted to make sure that | |
1152 | ;; no extra lines get inserted. | |
1153 | (defun mh-mm-display-part (handle) | |
1154 | "Toggle display of button for MIME part, HANDLE." | |
1155 | (beginning-of-line) | |
1156 | (let ((id (get-text-property (point) 'mh-part)) | |
1157 | (point (point)) | |
1158 | (window (selected-window)) | |
1159 | (mail-parse-charset 'nil) | |
1160 | (mail-parse-ignored-charsets nil) | |
1161 | region buffer-read-only) | |
1162 | (save-excursion | |
1163 | (unwind-protect | |
1164 | (let ((win (get-buffer-window (current-buffer) t))) | |
1165 | (when win | |
1166 | (select-window win)) | |
1167 | (goto-char point) | |
1168 | ||
1169 | (if (mm-handle-displayed-p handle) | |
1170 | ;; This will remove the part. | |
1171 | (progn | |
1172 | ;; Delete the button and displayed part (if any) | |
1173 | (let ((region (get-text-property point 'mh-region))) | |
a66894d8 | 1174 | (when region |
924df208 BW |
1175 | (mh-funcall-if-exists |
1176 | remove-images (car region) (cdr region))) | |
bdcfe844 BW |
1177 | (mm-display-part handle) |
1178 | (when region | |
1179 | (delete-region (car region) (cdr region)))) | |
1180 | ;; Delete button (if it still remains). This happens for | |
1181 | ;; externally displayed parts where the previous step does | |
1182 | ;; nothing. | |
1183 | (unless (eolp) | |
1184 | (delete-region (point) (progn (forward-line) (point))))) | |
1185 | (save-restriction | |
1186 | (delete-region (point) (progn (forward-line 1) (point))) | |
1187 | (narrow-to-region (point) (point)) | |
1188 | ;; Maybe we need another unwind-protect here. | |
1189 | (when (equal (mm-handle-media-supertype handle) "image") | |
1190 | (insert "\n")) | |
1191 | (when (and (not (eq (ignore-errors (mm-display-part handle)) | |
1192 | 'inline)) | |
1193 | (equal (mm-handle-media-supertype handle) | |
1194 | "image")) | |
1195 | (goto-char (point-min)) | |
1196 | (delete-char 1)) | |
1197 | (when (equal (mm-handle-media-supertype handle) "text") | |
553fb735 | 1198 | (when (eq mh-highlight-citation-style 'gnus) |
bdcfe844 BW |
1199 | (mh-gnus-article-highlight-citation)) |
1200 | (mh-display-smileys) | |
f0d73c14 BW |
1201 | (mh-display-emphasis) |
1202 | (mh-signature-highlight handle)) | |
bdcfe844 BW |
1203 | (setq region (cons (progn (goto-char (point-min)) |
1204 | (point-marker)) | |
1205 | (progn (goto-char (point-max)) | |
1206 | (point-marker))))))) | |
1207 | (when (window-live-p window) | |
1208 | (select-window window)) | |
1209 | (goto-char point) | |
1210 | (beginning-of-line) | |
1211 | (mh-insert-mime-button handle id (mm-handle-displayed-p handle)) | |
1212 | (goto-char point) | |
1213 | (when region | |
1214 | (add-text-properties (line-beginning-position) (line-end-position) | |
1215 | `(mh-region ,region))))))) | |
1216 | ||
c3d9274a | 1217 | ;;;###mh-autoload |
bdcfe844 | 1218 | (defun mh-press-button () |
553fb735 BW |
1219 | "View contents of button. |
1220 | ||
2dcf34f9 BW |
1221 | This command is a toggle so if you use it again on the same |
1222 | attachment, the attachment is hidden." | |
bdcfe844 BW |
1223 | (interactive) |
1224 | (let ((mm-inline-media-tests mh-mm-inline-media-tests) | |
1225 | (data (get-text-property (point) 'mh-data)) | |
1226 | (function (get-text-property (point) 'mh-callback)) | |
1227 | (buffer-read-only nil) | |
1228 | (folder mh-show-folder-buffer)) | |
c3d9274a BW |
1229 | (flet ((mm-handle-set-external-undisplayer |
1230 | (handle function) | |
1231 | (mh-handle-set-external-undisplayer folder handle function))) | |
bdcfe844 BW |
1232 | (when (and function (eolp)) |
1233 | (backward-char)) | |
1234 | (unwind-protect (and function (funcall function data)) | |
1235 | (set-buffer-modified-p nil))))) | |
1236 | ||
c3d9274a | 1237 | ;;;###mh-autoload |
bdcfe844 BW |
1238 | (defun mh-push-button (event) |
1239 | "Click MIME button for EVENT. | |
2dcf34f9 BW |
1240 | |
1241 | If the MIME part is visible then it is removed. Otherwise the | |
1242 | part is displayed. This function is called when the mouse is used | |
1243 | to click the MIME button." | |
bdcfe844 | 1244 | (interactive "e") |
a66894d8 BW |
1245 | (mh-do-at-event-location event |
1246 | (let ((folder mh-show-folder-buffer) | |
1247 | (mm-inline-media-tests mh-mm-inline-media-tests) | |
1248 | (data (get-text-property (point) 'mh-data)) | |
1249 | (function (get-text-property (point) 'mh-callback))) | |
1250 | (flet ((mm-handle-set-external-undisplayer (handle func) | |
1251 | (mh-handle-set-external-undisplayer folder handle func))) | |
1252 | (and function (funcall function data)))))) | |
bdcfe844 | 1253 | |
c3d9274a | 1254 | ;;;###mh-autoload |
bdcfe844 BW |
1255 | (defun mh-mime-save-part () |
1256 | "Save MIME part at point." | |
1257 | (interactive) | |
1258 | (let ((data (get-text-property (point) 'mh-data))) | |
1259 | (when data | |
a66894d8 BW |
1260 | (let ((mm-default-directory |
1261 | (file-name-as-directory (or mh-mime-save-parts-directory | |
1262 | default-directory)))) | |
c3d9274a BW |
1263 | (mh-mm-save-part data) |
1264 | (setq mh-mime-save-parts-directory mm-default-directory))))) | |
bdcfe844 | 1265 | |
c3d9274a | 1266 | ;;;###mh-autoload |
bdcfe844 BW |
1267 | (defun mh-mime-inline-part () |
1268 | "Toggle display of the raw MIME part." | |
1269 | (interactive) | |
1270 | (let* ((buffer-read-only nil) | |
1271 | (data (get-text-property (point) 'mh-data)) | |
1272 | (inserted-flag (get-text-property (point) 'mh-mime-inserted)) | |
1273 | (displayed-flag (mm-handle-displayed-p data)) | |
1274 | (point (point)) | |
1275 | start end) | |
1276 | (cond ((and data (not inserted-flag) (not displayed-flag)) | |
1277 | (let ((contents (mm-get-part data))) | |
1278 | (add-text-properties (line-beginning-position) (line-end-position) | |
1279 | '(mh-mime-inserted t)) | |
1280 | (setq start (point-marker)) | |
1281 | (forward-line 1) | |
1282 | (mm-insert-inline data contents) | |
1283 | (setq end (point-marker)) | |
1284 | (add-text-properties | |
1285 | start (progn (goto-char start) (line-end-position)) | |
1286 | `(mh-region (,start . ,end))))) | |
1287 | ((and data (or inserted-flag displayed-flag)) | |
1288 | (mh-press-button) | |
1289 | (message "MIME part already inserted"))) | |
1290 | (goto-char point) | |
1291 | (set-buffer-modified-p nil))) | |
1292 | ||
f0d73c14 BW |
1293 | ;;;###mh-autoload |
1294 | (defun mh-display-with-external-viewer (part-index) | |
553fb735 BW |
1295 | "View attachment externally. |
1296 | ||
2dcf34f9 BW |
1297 | If Emacs does not know how to view an attachment, you could save |
1298 | it into a file and then run some program to open it. It is | |
1299 | easier, however, to launch the program directly from MH-E with | |
1300 | this command. While you'll most likely use this to view | |
1301 | spreadsheets and documents, it is also useful to use your browser | |
1302 | to view HTML attachments with higher fidelity than what Emacs can | |
1303 | provide. | |
1304 | ||
1305 | This command displays the attachment associated with the button | |
1306 | under the cursor. If the cursor is not located over a button, | |
1307 | then the cursor first moves to the next button, wrapping to the | |
1308 | beginning of the message if necessary. You can provide a numeric | |
1309 | prefix argument PART-INDEX to view the attachment labeled with | |
1310 | that number. | |
1311 | ||
1312 | This command tries to provide a reasonable default for the viewer | |
1313 | by calling the Emacs function `mailcap-mime-info'. This function | |
1314 | usually reads the file \"/etc/mailcap\"." | |
f0d73c14 BW |
1315 | (interactive "P") |
1316 | (when (consp part-index) (setq part-index (car part-index))) | |
1317 | (mh-folder-mime-action | |
1318 | part-index | |
1319 | #'(lambda () | |
1320 | (let* ((part (get-text-property (point) 'mh-data)) | |
1321 | (type (mm-handle-media-type part)) | |
1322 | (methods (mapcar (lambda (x) (list (cdr (assoc 'viewer x)))) | |
1323 | (mailcap-mime-info type 'all))) | |
1324 | (def (caar methods)) | |
553fb735 BW |
1325 | (prompt (format "Viewer%s: " (if def |
1326 | (format " (default %s)" def) | |
1327 | ""))) | |
f0d73c14 BW |
1328 | (method (completing-read prompt methods nil nil nil nil def)) |
1329 | (folder mh-show-folder-buffer) | |
1330 | (buffer-read-only nil)) | |
1331 | (when (string-match "^[^% \t]+$" method) | |
1332 | (setq method (concat method " %s"))) | |
1333 | (flet ((mm-handle-set-external-undisplayer (handle function) | |
1334 | (mh-handle-set-external-undisplayer folder handle function))) | |
1335 | (unwind-protect (mm-display-external part method) | |
1336 | (set-buffer-modified-p nil))))) | |
1337 | nil)) | |
1338 | ||
bdcfe844 BW |
1339 | (defun mh-widget-press-button (widget el) |
1340 | "Callback for widget, WIDGET. | |
1341 | Parameter EL is unused." | |
1342 | (goto-char (widget-get widget :from)) | |
1343 | (mh-press-button)) | |
1344 | ||
1345 | (defun mh-mime-display-security (handle) | |
1346 | "Display PGP encrypted/signed message, HANDLE." | |
bdcfe844 BW |
1347 | (save-restriction |
1348 | (narrow-to-region (point) (point)) | |
f0d73c14 | 1349 | (insert "\n") |
bdcfe844 BW |
1350 | (mh-insert-mime-security-button handle) |
1351 | (mh-mime-display-mixed (cdr handle)) | |
1352 | (insert "\n") | |
1353 | (let ((mh-mime-security-button-line-format | |
c3d9274a | 1354 | mh-mime-security-button-end-line-format)) |
bdcfe844 BW |
1355 | (mh-insert-mime-security-button handle)) |
1356 | (mm-set-handle-multipart-parameter | |
f0d73c14 | 1357 | handle 'mh-region (cons (point-min-marker) (point-max-marker))))) |
bdcfe844 | 1358 | |
cee9f5c6 BW |
1359 | ;; I rewrote the security part because Gnus doesn't seem to ever minimize |
1360 | ;; the button. That is once the mime-security button is pressed there seems | |
1361 | ;; to be no way of getting rid of the inserted text. | |
bdcfe844 BW |
1362 | (defun mh-mime-security-show-details (handle) |
1363 | "Toggle display of detailed security info for HANDLE." | |
1364 | (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details))) | |
1365 | (when details | |
1366 | (let ((mh-mime-security-button-pressed | |
c3d9274a | 1367 | (not (get-text-property (point) 'mh-button-pressed))) |
bdcfe844 | 1368 | (mh-mime-security-button-line-format |
c3d9274a | 1369 | (get-text-property (point) 'mh-line-format))) |
bdcfe844 BW |
1370 | (forward-char -1) |
1371 | (while (eq (get-text-property (point) 'mh-line-format) | |
1372 | mh-mime-security-button-line-format) | |
1373 | (forward-char -1)) | |
1374 | (forward-char) | |
1375 | (save-restriction | |
1376 | (narrow-to-region (point) (point)) | |
1377 | (mh-insert-mime-security-button handle)) | |
1378 | (delete-region | |
1379 | (point) | |
1380 | (or (text-property-not-all | |
1381 | (point) (point-max) | |
1382 | 'mh-line-format mh-mime-security-button-line-format) | |
1383 | (point-max))) | |
1384 | (forward-line -1))))) | |
1385 | ||
e495eaec BW |
1386 | (defun mh-mime-security-button-face (info) |
1387 | "Return the button face to use for encrypted/signed mail based on INFO." | |
1388 | (cond ((string-match "OK" info) ;Decrypted mail | |
d49ed7d4 | 1389 | 'mh-show-pgg-good) |
e495eaec | 1390 | ((string-match "Failed" info) ;Decryption failed or signature invalid |
d49ed7d4 | 1391 | 'mh-show-pgg-bad) |
e495eaec | 1392 | ((string-match "Undecided" info);Unprocessed mail |
d49ed7d4 | 1393 | 'mh-show-pgg-unknown) |
e495eaec | 1394 | ((string-match "Untrusted" info);Key not trusted |
d49ed7d4 BW |
1395 | 'mh-show-pgg-unknown) |
1396 | (t | |
1397 | 'mh-show-pgg-good))) | |
e495eaec | 1398 | |
bdcfe844 BW |
1399 | (defun mh-mime-security-press-button (handle) |
1400 | "Callback from security button for part HANDLE." | |
f0d73c14 BW |
1401 | (if (mm-handle-multipart-ctl-parameter handle 'gnus-info) |
1402 | (mh-mime-security-show-details handle) | |
1403 | (let ((region (mm-handle-multipart-ctl-parameter handle 'mh-region)) | |
1404 | point) | |
1405 | (setq point (point)) | |
1406 | (goto-char (car region)) | |
1407 | (delete-region (car region) (cdr region)) | |
1408 | (with-current-buffer (mm-handle-multipart-ctl-parameter handle 'buffer) | |
1409 | (let* ((mm-verify-option 'known) | |
1410 | (mm-decrypt-option 'known) | |
1411 | (new (mm-possibly-verify-or-decrypt (cdr handle) handle))) | |
1412 | (unless (eq new (cdr handle)) | |
1413 | (mm-destroy-parts (cdr handle)) | |
1414 | (setcdr handle new)))) | |
1415 | (mh-mime-display-security handle) | |
1416 | (goto-char point)))) | |
bdcfe844 | 1417 | |
23847cd6 | 1418 | ;; Shush compiler. |
7094eefe BW |
1419 | (eval-when-compile |
1420 | (defvar mm-verify-function-alist nil) | |
1421 | (defvar mm-decrypt-function-alist nil)) | |
bdcfe844 BW |
1422 | |
1423 | (defvar pressed-details) | |
1424 | ||
1425 | (defun mh-insert-mime-security-button (handle) | |
1426 | "Display buttons for PGP message, HANDLE." | |
1427 | (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol)) | |
1428 | (crypto-type (or (nth 2 (assoc protocol mm-verify-function-alist)) | |
1429 | (nth 2 (assoc protocol mm-decrypt-function-alist)) | |
1430 | "Unknown")) | |
1431 | (type (concat crypto-type | |
1432 | (if (equal (car handle) "multipart/signed") | |
1433 | " Signed" " Encrypted") | |
1434 | " Part")) | |
1435 | (info (or (mm-handle-multipart-ctl-parameter handle 'gnus-info) | |
1436 | "Undecided")) | |
1437 | (details (mm-handle-multipart-ctl-parameter handle 'gnus-details)) | |
e495eaec | 1438 | pressed-details begin end face) |
bdcfe844 BW |
1439 | (setq details (if details (concat "\n" details) "")) |
1440 | (setq pressed-details (if mh-mime-security-button-pressed details "")) | |
e495eaec | 1441 | (setq face (mh-mime-security-button-face info)) |
bdcfe844 BW |
1442 | (unless (bolp) (insert "\n")) |
1443 | (setq begin (point)) | |
1444 | (gnus-eval-format | |
1445 | mh-mime-security-button-line-format | |
1446 | mh-mime-security-button-line-format-alist | |
1447 | `(,@(gnus-local-map-property mh-mime-security-button-map) | |
c3d9274a BW |
1448 | mh-button-pressed ,mh-mime-security-button-pressed |
1449 | mh-callback mh-mime-security-press-button | |
1450 | mh-line-format ,mh-mime-security-button-line-format | |
1451 | mh-data ,handle)) | |
bdcfe844 BW |
1452 | (setq end (point)) |
1453 | (widget-convert-button 'link begin end | |
1454 | :mime-handle handle | |
1455 | :action 'mh-widget-press-button | |
1456 | :button-keymap mh-mime-security-button-map | |
e495eaec | 1457 | :button-face face |
bdcfe844 | 1458 | :help-echo "Mouse-2 click or press RET (in show buffer) to see security details.") |
f0d73c14 BW |
1459 | (dolist (ov (mh-funcall-if-exists overlays-in begin end)) |
1460 | (mh-funcall-if-exists overlay-put ov 'evaporate t)) | |
bdcfe844 BW |
1461 | (when (equal info "Failed") |
1462 | (let* ((type (if (equal (car handle) "multipart/signed") | |
1463 | "verification" "decryption")) | |
1464 | (warning (if (equal type "decryption") | |
1465 | "(passphrase may be incorrect)" ""))) | |
1466 | (message "%s %s failed %s" crypto-type type warning))))) | |
1467 | ||
1468 | (defun mh-mm-inline-message (handle) | |
1469 | "Display message, HANDLE. | |
2dcf34f9 BW |
1470 | The function decodes the message and displays it. It avoids |
1471 | decoding the same message multiple times." | |
bdcfe844 | 1472 | (let ((b (point)) |
bdcfe844 | 1473 | (clean-message-header mh-clean-message-header-flag) |
f0d73c14 BW |
1474 | (invisible-headers mh-invisible-header-fields-compiled) |
1475 | (visible-headers nil)) | |
bdcfe844 BW |
1476 | (save-excursion |
1477 | (save-restriction | |
1478 | (narrow-to-region b b) | |
1479 | (mm-insert-part handle) | |
1480 | (mh-mime-display | |
1481 | (or (gethash handle (mh-mime-handles-cache (mh-buffer-data))) | |
1482 | (setf (gethash handle (mh-mime-handles-cache (mh-buffer-data))) | |
9ac2e4e5 MB |
1483 | (let ((handles (mm-dissect-buffer nil))) |
1484 | (if handles | |
1485 | (when (fboundp 'mm-uu-dissect-text-parts) | |
1486 | (mm-uu-dissect-text-parts handles)) | |
1487 | (setq handles (mm-uu-dissect))) | |
bdcfe844 BW |
1488 | (setf (mh-mime-handles (mh-buffer-data)) |
1489 | (mm-merge-handles | |
1490 | handles (mh-mime-handles (mh-buffer-data)))) | |
1491 | handles)))) | |
1492 | ||
1493 | (goto-char (point-min)) | |
924df208 | 1494 | (mh-show-xface) |
bdcfe844 BW |
1495 | (cond (clean-message-header |
1496 | (mh-clean-msg-header (point-min) | |
1497 | invisible-headers | |
1498 | visible-headers) | |
1499 | (goto-char (point-min))) | |
1500 | (t | |
1501 | (mh-start-of-uncleaned-message))) | |
924df208 | 1502 | (mh-decode-message-header) |
bdcfe844 BW |
1503 | (mh-show-addr) |
1504 | ;; The other highlighting types don't need anything special | |
553fb735 | 1505 | (when (eq mh-highlight-citation-style 'gnus) |
bdcfe844 BW |
1506 | (mh-gnus-article-highlight-citation)) |
1507 | (goto-char (point-min)) | |
1508 | (insert "\n------- Forwarded Message\n\n") | |
1509 | (mh-display-smileys) | |
1510 | (mh-display-emphasis) | |
1511 | (mm-handle-set-undisplayer | |
1512 | handle | |
1513 | `(lambda () | |
1514 | (let (buffer-read-only) | |
1515 | (if (fboundp 'remove-specifier) | |
1516 | ;; This is only valid on XEmacs. | |
1517 | (mapcar (lambda (prop) | |
1518 | (remove-specifier | |
1519 | (face-property 'default prop) (current-buffer))) | |
1520 | '(background background-pixmap foreground))) | |
1521 | (delete-region ,(point-min-marker) ,(point-max-marker))))))))) | |
1522 | ||
1523 | (provide 'mh-mime) | |
1524 | ||
cee9f5c6 BW |
1525 | ;; Local Variables: |
1526 | ;; indent-tabs-mode: nil | |
1527 | ;; sentence-end-double-space: nil | |
1528 | ;; End: | |
bdcfe844 | 1529 | |
cee9f5c6 | 1530 | ;; arch-tag: 0dd36518-1b64-4a84-8f4e-59f422d3f002 |
60370d40 | 1531 | ;;; mh-mime.el ends here |