1 ;;; mh-mime.el --- MH-E support for composing MIME messages
3 ;; Copyright (C) 1993, 1995, 2001, 02, 03, 2004 Free Software Foundation, Inc.
5 ;; Author: Bill Wohler <wohler@newt.com>
6 ;; Maintainer: Bill Wohler <wohler@newt.com>
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 2, or (at your option)
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 ;; Boston, MA 02111-1307, USA.
29 ;; Internal support for MH-E package.
30 ;; Support for generating an mhn composition file.
31 ;; MIME is supported only by MH 6.8 or later.
37 (eval-when-compile (require 'mh-acros
))
43 (autoload 'gnus-article-goto-header
"gnus-art")
44 (autoload 'article-emphasize
"gnus-art")
45 (autoload 'gnus-get-buffer-create
"gnus")
46 (autoload 'gnus-eval-format
"gnus-spec")
47 (autoload 'widget-convert-button
"wid-edit")
48 (autoload 'message-options-set-recipient
"message")
49 (autoload 'mml-unsecure-message
"mml-sec")
50 (autoload 'mml-minibuffer-read-file
"mml")
51 (autoload 'mml-minibuffer-read-description
"mml")
52 (autoload 'mml-insert-empty-tag
"mml")
53 (autoload 'mml-to-mime
"mml")
54 (autoload 'mml-attach-file
"mml")
55 (autoload 'rfc2047-decode-region
"rfc2047")
58 (defun mh-compose-insertion (&optional inline
)
59 "Add a directive to insert a MIME part from a file, using mhn or gnus.
60 If the variable `mh-compose-insertion' is set to 'mhn, then that will be used.
61 If it is set to 'gnus, then that will be used instead.
62 Optional argument INLINE means make it an inline attachment."
64 (if (equal mh-compose-insertion
'gnus
)
66 (mh-mml-attach-file "inline")
68 (call-interactively 'mh-mhn-compose-insertion
)))
71 (defun mh-compose-forward (&optional description folder message
)
72 "Add a MIME directive to forward a message, using mhn or gnus.
73 If the variable `mh-compose-insertion' is set to 'mhn, then that will be used.
74 If it is set to 'gnus, then that will be used instead.
75 Optional argument DESCRIPTION is a description of the attachment.
76 Optional argument FOLDER is the folder from which the forwarded message should
78 Optional argument MESSAGE is the message to forward.
79 If any of the optional arguments are absent, they are prompted for."
81 (read-string "Forw Content-description: ")
82 (mh-prompt-for-folder "Message from" mh-sent-from-folder nil
)
83 (read-string (format "Messages%s: "
84 (if (numberp mh-sent-from-msg
)
85 (format " [%d]" mh-sent-from-msg
)
87 (if (equal mh-compose-insertion
'gnus
)
88 (mh-mml-forward-message description folder message
)
89 (mh-mhn-compose-forw description folder message
)))
92 ;; paragraph code should not fill # lines if MIME enabled.
93 ;; implement mh-auto-edit-mhn (if non-nil, \\[mh-send-letter]
94 ;; invokes mh-edit-mhn automatically before sending.)
95 ;; actually, instead of mh-auto-edit-mhn,
96 ;; should read automhnproc from profile
97 ;; MIME option to mh-forward
98 ;; command to move to content-description insertion point
100 (defvar mh-mhn-args nil
101 "Extra arguments to have \\[mh-edit-mhn] pass to the \"mhn\" command.
102 The arguments are passed to mhn if \\[mh-edit-mhn] is given a
103 prefix argument. Normally default arguments to mhn are specified in the
106 (defvar mh-media-type-regexp
107 (concat (regexp-opt '("text" "image" "audio" "video" "application"
108 "multipart" "message") t
)
110 "Regexp matching valid media types used in MIME attachment compositions.")
112 ;; Just defvar the variable to avoid compiler warning... This doesn't bind
113 ;; the variable, so things should work exactly as before.
114 (defvar mh-have-file-command
)
117 (defun mh-have-file-command ()
118 "Return t if 'file' command is on the system.
119 'file -i' is used to get MIME type of composition insertion."
120 (when (not (boundp 'mh-have-file-command
))
121 (load "executable" t t
) ; executable-find not autoloaded in emacs20
122 (setq mh-have-file-command
123 (and (fboundp 'executable-find
)
124 (executable-find "file") ; file command exists
125 ; and accepts -i and -b args.
126 (zerop (call-process "file" nil nil nil
"-i" "-b"
127 (expand-file-name "inc" mh-progs
))))))
128 mh-have-file-command
)
130 (defvar mh-file-mime-type-substitutions
131 '(("application/msword" "\.xls" "application/ms-excel")
132 ("application/msword" "\.ppt" "application/ms-powerpoint")
133 ("text/plain" "\.vcf" "text/x-vcard"))
134 "Substitutions to make for Content-Type returned from file command.
135 The first element is the Content-Type returned by the file command.
136 The second element is a regexp matching the file name, usually the extension.
137 The third element is the Content-Type to replace with.")
139 (defun mh-file-mime-type-substitute (content-type filename
)
140 "Return possibly changed CONTENT-TYPE on the FILENAME.
141 Substitutions are made from the `mh-file-mime-type-substitutions' variable."
142 (let ((subst mh-file-mime-type-substitutions
)
143 (type) (match) (answer content-type
)
144 (case-fold-search t
))
146 (setq type
(car (car subst
))
147 match
(elt (car subst
) 1))
148 (if (and (string-equal content-type type
)
149 (string-match match filename
))
150 (setq answer
(elt (car subst
) 2)
152 (setq subst
(cdr subst
))))
156 (defun mh-file-mime-type (filename)
157 "Return MIME type of FILENAME from file command.
158 Returns nil if file command not on system."
160 ((not (mh-have-file-command))
161 nil
) ;No file command, exit now.
162 ((not (and (file-exists-p filename
)(file-readable-p filename
)))
166 (let ((tmp-buffer (get-buffer-create mh-temp-buffer
)))
167 (set-buffer tmp-buffer
)
170 (call-process "file" nil
'(t nil
) nil
"-b" "-i"
171 (expand-file-name filename
))
172 (goto-char (point-min))
173 (if (not (re-search-forward mh-media-type-regexp nil t
))
175 (mh-file-mime-type-substitute (match-string 0) filename
)))
176 (kill-buffer tmp-buffer
)))))))
178 ;;; This is needed for Emacs20 which doesn't have mailcap-mime-types.
179 (defvar mh-mime-content-types
180 '(("application/mac-binhex40") ("application/msword")
181 ("application/octet-stream") ("application/pdf") ("application/pgp-keys")
182 ("application/pgp-signature") ("application/pkcs7-signature")
183 ("application/postscript") ("application/rtf")
184 ("application/vnd.ms-excel") ("application/vnd.ms-powerpoint")
185 ("application/vnd.ms-project") ("application/vnd.ms-tnef")
186 ("application/wordperfect5.1") ("application/wordperfect6.0")
189 ("audio/basic") ("audio/mpeg")
191 ("image/gif") ("image/jpeg") ("image/png")
193 ("message/delivery-status")
194 ("message/external-body") ("message/partial") ("message/rfc822")
196 ("text/enriched") ("text/html") ("text/plain") ("text/rfc822-headers")
197 ("text/richtext") ("text/x-vcard") ("text/xml")
199 ("video/mpeg") ("video/quicktime"))
200 "Legal MIME content types.
201 See documentation for \\[mh-edit-mhn].")
203 ;; RFC 2045 - Multipurpose Internet Mail Extensions (MIME) Part One:
204 ;; Format of Internet Message Bodies.
205 ;; RFC 2046 - Multipurpose Internet Mail Extensions (MIME) Part Two:
207 ;; RFC 2049 - Multipurpose Internet Mail Extensions (MIME) Part Five:
208 ;; Conformance Criteria and Examples.
209 ;; RFC 2017 - Definition of the URL MIME External-Body Access-Type
210 ;; RFC 1738 - Uniform Resource Locators (URL)
211 (defvar mh-access-types
212 '(("anon-ftp") ; RFC2046 Anonymous File Transfer Protocol
213 ("file") ; RFC1738 Host-specific file names
214 ("ftp") ; RFC2046 File Transfer Protocol
215 ("gopher") ; RFC1738 The Gopher Protocol
216 ("http") ; RFC1738 Hypertext Transfer Protocol
217 ("local-file") ; RFC2046 Local file access
218 ("mail-server") ; RFC2046 mail-server Electronic mail address
219 ("mailto") ; RFC1738 Electronic mail address
220 ("news") ; RFC1738 Usenet news
221 ("nntp") ; RFC1738 Usenet news using NNTP access
222 ("propspero") ; RFC1738 Prospero Directory Service
223 ("telnet") ; RFC1738 Telnet
224 ("tftp") ; RFC2046 Trivial File Transfer Protocol
225 ("url") ; RFC2017 URL scheme MIME access-type Protocol
226 ("wais")) ; RFC1738 Wide Area Information Servers
227 "Legal MIME access-type values.")
230 (defun mh-mhn-compose-insertion (filename type description attributes
)
231 "Add a directive to insert a MIME message part from a file.
232 This is the typical way to insert non-text parts in a message.
234 Arguments are FILENAME, which tells where to find the file, TYPE, the MIME
235 content type, DESCRIPTION, a line of text for the Content-Description field.
236 ATTRIBUTES is a comma separated list of name=value pairs that is appended to
237 the Content-Type field of the attachment.
239 See also \\[mh-edit-mhn]."
240 (interactive (let ((filename (read-file-name "Insert contents of: ")))
243 (or (mh-file-mime-type filename
)
244 (completing-read "Content-Type: "
245 (if (fboundp 'mailcap-mime-types
)
246 (mapcar 'list
(mailcap-mime-types))
247 mh-mime-content-types
)))
248 (read-string "Content-Description: ")
249 (read-string "Content-Attributes: "
251 (file-name-nondirectory filename
)
253 (mh-mhn-compose-type filename type description attributes
))
255 (defun mh-mhn-compose-type (filename type
256 &optional description attributes comment
)
257 "Insert a mhn directive to insert a file.
259 The file specified by FILENAME is encoded as TYPE. An optional DESCRIPTION is
260 used as the Content-Description field, optional set of ATTRIBUTES and an
261 optional COMMENT can also be included."
265 (insert "; " attributes
))
267 (insert " (" comment
")"))
270 (insert description
))
271 (insert "] " (expand-file-name filename
))
276 (defun mh-mhn-compose-anon-ftp (host filename type description
)
277 "Add a directive for a MIME anonymous ftp external body part.
278 This directive tells MH to include a reference to a message/external-body part
279 retrievable by anonymous FTP.
281 Arguments are HOST and FILENAME, which tell where to find the file, TYPE, the
282 MIME content type, and DESCRIPTION, a line of text for the Content-description
285 See also \\[mh-edit-mhn]."
287 (read-string "Remote host: ")
288 (read-string "Remote filename: ")
289 (completing-read "External Content-Type: "
290 (if (fboundp 'mailcap-mime-types
)
291 (mapcar 'list
(mailcap-mime-types))
292 mh-mime-content-types
))
293 (read-string "External Content-Description: ")))
294 (mh-mhn-compose-external-type "anon-ftp" host filename
298 (defun mh-mhn-compose-external-compressed-tar (host filename description
)
299 "Add a directive to include a MIME reference to a compressed tar file.
300 The file should be available via anonymous ftp. This directive tells MH to
301 include a reference to a message/external-body part.
303 Arguments are HOST and FILENAME, which tell where to find the file, and
304 DESCRIPTION, a line of text for the Content-description header.
306 See also \\[mh-edit-mhn]."
308 (read-string "Remote host: ")
309 (read-string "Remote filename: ")
310 (read-string "Tar file Content-description: ")))
311 (mh-mhn-compose-external-type "anon-ftp" host filename
312 "application/octet-stream"
314 "type=tar; conversions=x-compress"
318 (defun mh-mhn-compose-external-type (access-type host filename type
319 &optional description
320 attributes extra-params
322 "Add a directive to include a MIME reference to a remote file.
323 The file should be available via anonymous ftp. This directive tells MH to
324 include a reference to a message/external-body part.
326 Arguments are ACCESS-TYPE, HOST and FILENAME, which tell where to find the
327 file and TYPE which is the MIME Content-Type. Optional arguments include
328 DESCRIPTION, a line of text for the Content-description header, ATTRIBUTES,
329 EXTRA-PARAMS, and COMMENT.
331 See also \\[mh-edit-mhn]."
333 (completing-read "Access Type: " mh-access-types
)
334 (read-string "Remote host: ")
335 (read-string "Remote url-path: ")
336 (completing-read "Content-Type: "
337 (if (fboundp 'mailcap-mime-types
)
338 (mapcar 'list
(mailcap-mime-types))
339 mh-mime-content-types
))
340 (if current-prefix-arg
(read-string "Content-description: "))
341 (if current-prefix-arg
(read-string "Attributes: "))
342 (if current-prefix-arg
(read-string "Extra Parameters: "))
343 (if current-prefix-arg
(read-string "Comment: "))))
347 (insert "; " attributes
))
349 (insert " (" comment
") "))
352 (insert description
))
354 (insert "access-type=" access-type
"; ")
355 (insert "site=" host
)
356 (insert "; name=" (file-name-nondirectory filename
))
357 (let ((directory (file-name-directory filename
)))
359 (insert "; directory=\"" directory
"\"")))
361 (insert "; " extra-params
))
365 (defun mh-mhn-compose-forw (&optional description folder messages
)
366 "Add a forw directive to this message, to forward a message with MIME.
367 This directive tells MH to include the named messages in this one.
369 Arguments are DESCRIPTION, a line of text for the Content-description header,
370 and FOLDER and MESSAGES, which name the message(s) to be forwarded.
372 See also \\[mh-edit-mhn]."
374 (read-string "Forw Content-description: ")
375 (mh-prompt-for-folder "Message from" mh-sent-from-folder nil
)
376 (read-string (format "Messages%s: "
377 (if (numberp mh-sent-from-msg
)
378 (format " [%d]" mh-sent-from-msg
)
383 (not (string= description
""))
384 (insert description
))
387 (not (string= folder
""))
390 (not (string= messages
"")))
391 (let ((start (point)))
392 (insert " " messages
)
393 (subst-char-in-region start
(point) ?
, ?
))
394 (if (numberp mh-sent-from-msg
)
395 (insert " " (int-to-string mh-sent-from-msg
))))
399 (defun mh-edit-mhn (&optional extra-args
)
400 "Format the current draft for MIME, expanding any mhn directives.
402 Process the current draft with the mhn program, which, using directives
403 already inserted in the draft, fills in all the MIME components and header
406 This step is performed automatically when sending the message, but this
407 function may be called manually before sending the draft as well.
409 The `\\[mh-revert-mhn-edit]' command undoes this command. The arguments in the
410 list `mh-mhn-args' are passed to mhn if this function is passed an optional
411 prefix argument EXTRA-ARGS.
413 For assistance with creating mhn directives to insert various types of
414 components in a message, see \\[mh-mhn-compose-insertion] (generic insertion
415 from a file), \\[mh-mhn-compose-anon-ftp] (external reference to file via
416 anonymous ftp), \\[mh-mhn-compose-external-compressed-tar] \ \(reference to
417 compressed tar file via anonymous ftp), and \\[mh-mhn-compose-forw] (forward
420 The value of `mh-edit-mhn-hook' is a list of functions to be called, with no
421 arguments, after performing the conversion.
423 The mhn program is part of MH version 6.8 or later."
425 (mh-mhn-quote-unescaped-sharp)
427 (message "mhn editing...")
430 (mh-exec-cmd-error nil
431 "mhbuild" (if extra-args mh-mhn-args
) buffer-file-name
))
433 (mh-exec-cmd-error (format "mhdraft=%s" buffer-file-name
)
434 "mhn" (if extra-args mh-mhn-args
) buffer-file-name
)))
436 (message "mhn editing...done")
437 (run-hooks 'mh-edit-mhn-hook
))
439 (defun mh-mhn-quote-unescaped-sharp ()
440 "Quote `#' characters that haven't been quoted for `mhbuild'.
441 If the `#' character is present in the first column, but it isn't part of a
442 MHN directive then `mhbuild' gives an error. This function will quote all such
445 (goto-char (point-min))
446 (while (re-search-forward "^#" nil t
)
448 (unless (mh-mhn-directive-present-p (point) (line-end-position))
450 (goto-char (line-end-position)))))
453 (defun mh-revert-mhn-edit (noconfirm)
454 "Undo the effect of \\[mh-edit-mhn] by reverting to the backup file.
455 Optional non-nil argument NOCONFIRM means don't ask for confirmation."
457 (if (null buffer-file-name
)
458 (error "Buffer does not seem to be associated with any file"))
459 (let ((backup-strings '("," "#"))
461 (while (and backup-strings
464 (concat (file-name-directory buffer-file-name
)
466 (file-name-nondirectory buffer-file-name
)
468 (setq backup-strings
(cdr backup-strings
)))
470 (error "Backup file for %s no longer exists!" buffer-file-name
))
472 (yes-or-no-p (format "Revert buffer from file %s? "
474 (error "Revert not confirmed"))
475 (let ((buffer-read-only nil
))
477 (insert-file-contents backup-file
))
478 (after-find-file nil
)))
481 (defun mh-mhn-directive-present-p (&optional begin end
)
482 "Check if the text between BEGIN and END might be a MHN directive.
483 The optional argument BEGIN defaults to the beginning of the buffer, while END
484 defaults to the the end of the buffer."
485 (unless begin
(setq begin
(point-min)))
486 (unless end
(setq end
(point-max)))
488 (block 'search-for-mhn-directive
490 (while (re-search-forward "^#" end t
)
491 (let ((s (buffer-substring-no-properties (point) (line-end-position))))
493 ((string-match "^forw[ \t\n]+" s
)
494 (return-from 'search-for-mhn-directive t
))
495 (t (let ((first-token (car (split-string s
"[ \t;@]"))))
496 (when (and first-token
497 (string-match mh-media-type-regexp
499 (return-from 'search-for-mhn-directive t
)))))))
504 ;;; MIME composition functions
507 (defun mh-mml-to-mime ()
508 "Compose MIME message from mml directives.
509 This step is performed automatically when sending the message, but this
510 function may be called manually before sending the draft as well."
513 (when mh-gnus-pgp-support-flag
;; This is only needed for PGP
514 (message-options-set-recipient))
515 (let ((saved-text (buffer-string))
516 (buffer (current-buffer))
517 (modified-flag (buffer-modified-p)))
518 (condition-case err
(mml-to-mime)
520 (with-current-buffer buffer
521 (delete-region (point-min) (point-max))
523 (set-buffer-modified-p modified-flag
))
524 (error (error-message-string err
))))))
527 (defun mh-mml-forward-message (description folder message
)
528 "Forward a message as attachment.
529 The function will prompt the user for a DESCRIPTION, a FOLDER and MESSAGE
531 (let ((msg (if (and (equal message
"") (numberp mh-sent-from-msg
))
533 (car (read-from-string message
)))))
534 (cond ((integerp msg
)
535 (if (string= "" description
)
536 ;; Rationale: mml-attach-file constructs a malformed composition
537 ;; if the description string is empty. This fixes SF #625168.
538 (mml-attach-file (format "%s%s/%d"
539 mh-user-path
(substring folder
1) msg
)
541 (mml-attach-file (format "%s%s/%d"
542 mh-user-path
(substring folder
1) msg
)
545 (t (error "The message number, %s is not a integer!" msg
)))))
547 (defvar mh-mml-cryptographic-method-history
())
550 (defun mh-mml-query-cryptographic-method ()
551 "Read the cryptographic method to use."
552 (if current-prefix-arg
553 (let ((def (or (car mh-mml-cryptographic-method-history
)
554 mh-mml-method-default
)))
555 (completing-read (format "Method: [%s] " def
)
556 '(("pgp") ("pgpmime") ("smime"))
557 nil t nil
'mh-mml-cryptographic-method-history def
))
558 mh-mml-method-default
))
561 (defun mh-mml-attach-file (&optional disposition
)
562 "Attach a file to the outgoing MIME message.
563 The file is not inserted or encoded until you send the message with
564 `\\[mh-send-letter]'.
565 Message disposition is \"inline\" or \"attachment\" and is prompted for if
568 This is basically `mml-attach-file' from gnus, modified such that a prefix
569 argument yields an `inline' disposition and Content-Type is determined
571 (let* ((file (mml-minibuffer-read-file "Attach file: "))
572 (type (or (mh-file-mime-type file
)
573 (completing-read "Content-Type: "
574 (if (fboundp 'mailcap-mime-types
)
575 (mapcar 'list
(mailcap-mime-types))
576 mh-mime-content-types
))))
577 (description (mml-minibuffer-read-description))
578 (dispos (or disposition
579 (completing-read "Disposition: [attachment] "
580 '(("attachment")("inline"))
583 (mml-insert-empty-tag 'part
'type type
'filename file
584 'disposition dispos
'description description
)))
586 (defvar mh-identity-pgg-default-user-id
)
588 (defun mh-secure-message (method mode
&optional identity
)
589 "Add directive to Encrypt/Sign an entire message.
590 METHOD should be one of: \"pgpmime\", \"pgp\", \"smime\".
591 MODE should be one of: \"sign\", \"encrypt\", \"signencrypt\", \"none\".
592 IDENTITY is optionally the default-user-id to use."
593 (if (not mh-gnus-pgp-support-flag
)
594 (error "Sorry. Your version of gnus does not support PGP/GPG")
595 ;; Check the arguments
596 (let ((valid-methods (list "pgpmime" "pgp" "smime"))
597 (valid-modes (list "sign" "encrypt" "signencrypt" "none")))
598 (if (not (member method valid-methods
))
599 (error (format "Sorry. METHOD \"%s\" is invalid." method
)))
600 (if (not (member mode valid-modes
))
601 (error (format "Sorry. MODE \"%s\" is invalid" mode
)))
602 (mml-unsecure-message)
603 (if (not (string= mode
"none"))
605 (goto-char (point-min))
606 (mh-goto-header-end 1)
607 (if mh-identity-pgg-default-user-id
608 (mml-insert-tag 'secure
'method method
'mode mode
609 'sender mh-identity-pgg-default-user-id
)
610 (mml-insert-tag 'secure
'method method
'mode mode
)))))))
613 (defun mh-mml-unsecure-message (&optional ignore
)
614 "Remove any secure message directives.
615 The IGNORE argument is not used."
617 (if (not mh-gnus-pgp-support-flag
)
618 (error "Sorry. Your version of gnus does not support PGP/GPG")
619 (mml-unsecure-message)))
622 (defun mh-mml-secure-message-sign (method)
623 "Add security directive to sign the entire message using METHOD."
624 (interactive (list (mh-mml-query-cryptographic-method)))
625 (mh-secure-message method
"sign" mh-identity-pgg-default-user-id
))
628 (defun mh-mml-secure-message-encrypt (method)
629 "Add security directive to encrypt the entire message using METHOD."
630 (interactive (list (mh-mml-query-cryptographic-method)))
631 (mh-secure-message method
"encrypt" mh-identity-pgg-default-user-id
))
634 (defun mh-mml-secure-message-signencrypt (method)
635 "Add security directive to encrypt and sign the entire message using METHOD."
636 (interactive (list (mh-mml-query-cryptographic-method)))
637 (mh-secure-message method
"signencrypt" mh-identity-pgg-default-user-id
))
640 (defun mh-mml-directive-present-p ()
641 "Check if the current buffer has text which may be an MML directive."
643 (goto-char (point-min))
645 "\\(<#part\\(.\\|\n\\)*>[ \n\t]*<#/part>\\|^<#secure.+>$\\)"
653 (defun mh-mime-cleanup ()
654 "Free the decoded MIME parts."
655 (let ((mime-data (gethash (current-buffer) mh-globals-hash
)))
656 ;; This is for Emacs, what about XEmacs?
657 (mh-funcall-if-exists remove-images
(point-min) (point-max))
659 (mm-destroy-parts (mh-mime-handles mime-data
))
660 (remhash (current-buffer) mh-globals-hash
))))
663 (defun mh-destroy-postponed-handles ()
664 "Free MIME data for externally displayed mime parts."
665 (let ((mime-data (mh-buffer-data)))
667 (mm-destroy-parts (mh-mime-handles mime-data
)))
668 (remhash (current-buffer) mh-globals-hash
)))
670 (defun mh-handle-set-external-undisplayer (folder handle function
)
671 "Replacement for `mm-handle-set-external-undisplayer'.
672 This is only called in recent versions of Gnus. The MIME handles are stored
673 in data structures corresponding to MH-E folder buffer FOLDER instead of in
674 Gnus (as in the original). The MIME part, HANDLE is associated with the
675 undisplayer FUNCTION."
676 (if (mm-keep-viewer-alive-p handle
)
677 (let ((new-handle (copy-sequence handle
)))
678 (mm-handle-set-undisplayer new-handle function
)
679 (mm-handle-set-undisplayer handle nil
)
682 (push new-handle
(mh-mime-handles (mh-buffer-data)))))
683 (mm-handle-set-undisplayer handle function
)))
687 ;;; MIME transformations
688 (eval-when-compile (require 'font-lock
))
691 (defun mh-add-missing-mime-version-header ()
692 "Some mail programs don't put a MIME-Version header.
693 I have seen this only in spam, so maybe we shouldn't fix this ;-)"
695 (goto-char (point-min))
696 (re-search-forward "\n\n" nil t
)
698 (narrow-to-region (point-min) (point))
699 (when (and (message-fetch-field "content-type")
700 (not (message-fetch-field "mime-version")))
701 (goto-char (point-min))
702 (insert "MIME-Version: 1.0\n")))))
704 (defun mh-small-show-buffer-p ()
705 "Check if show buffer is small.
706 This is used to decide if smileys and graphical emphasis will be displayed."
708 (when (and (boundp 'font-lock-maximum-size
) font-lock-maximum-size
)
709 (cond ((numberp font-lock-maximum-size
)
710 (setq max font-lock-maximum-size
))
711 ((listp font-lock-maximum-size
)
712 (setq max
(cdr (or (assoc 'mh-show-mode font-lock-maximum-size
)
713 (assoc t font-lock-maximum-size
)))))))
714 (or (not (numberp max
)) (>= (/ max
8) (buffer-size)))))
717 (defun mh-display-smileys ()
718 "Function to display smileys."
719 (when (and mh-graphical-smileys-flag
(mh-small-show-buffer-p))
720 (mh-funcall-if-exists smiley-region
(point-min) (point-max))))
723 (defun mh-display-emphasis ()
724 "Function to display graphical emphasis."
725 (when (and mh-graphical-emphasis-flag
(mh-small-show-buffer-p))
726 (flet ((article-goto-body ())) ; shadow this function to do nothing
728 (goto-char (point-min))
729 (article-emphasize)))))
731 ;; Copied from gnus-art.el (should be checked for other cool things that can
732 ;; be added to the buttons)
733 (defvar mh-mime-button-commands
734 '((mh-press-button "\r" "Toggle Display")))
735 (defvar mh-mime-button-map
736 (let ((map (make-sparse-keymap)))
737 (unless (>= (string-to-number emacs-version
) 21)
738 ;; XEmacs doesn't care.
739 (set-keymap-parent map mh-show-mode-map
))
741 (define-key map
[mouse-2
] 'mh-push-button
))
743 (define-key map
'(button2) 'mh-push-button
))
744 (dolist (c mh-mime-button-commands
)
745 (define-key map
(cadr c
) (car c
)))
747 (defvar mh-mime-button-line-format-alist
752 (defvar mh-mime-button-line-format
"%{%([%p. %d%T]%)%}%e\n")
753 (defvar mh-mime-security-button-pressed nil
)
754 (defvar mh-mime-security-button-line-format
"%{%([[%t:%i]%D]%)%}\n")
755 (defvar mh-mime-security-button-end-line-format
"%{%([[End of %t]%D]%)%}\n")
756 (defvar mh-mime-security-button-line-format-alist
760 (?D pressed-details ?s
)))
761 (defvar mh-mime-security-button-map
762 (let ((map (make-sparse-keymap)))
763 (unless (>= (string-to-number emacs-version
) 21)
764 (set-keymap-parent map mh-show-mode-map
))
765 (define-key map
"\r" 'mh-press-button
)
767 (define-key map
[mouse-2
] 'mh-push-button
))
769 (define-key map
'(button2) 'mh-push-button
))
772 (defvar mh-mime-save-parts-directory nil
773 "Default to use for `mh-mime-save-parts-default-directory'.
777 (defun mh-mime-save-parts (arg)
778 "Store the MIME parts of the current message.
779 If ARG, prompt for directory, else use that specified by the variable
780 `mh-mime-save-parts-default-directory'. These directories may be superseded by
781 mh_profile directives, since this function calls on mhstore or mhn to do the
784 (let ((msg (if (eq major-mode
'mh-show-mode
)
785 (mh-show-buffer-message-number)
787 (folder (if (eq major-mode
'mh-show-mode
)
788 mh-show-folder-buffer
790 (command (if (mh-variant-p 'nmh
) "mhstore" "mhn"))
794 (equal nil mh-mime-save-parts-default-directory
)
795 (equal t mh-mime-save-parts-default-directory
))
796 (not mh-mime-save-parts-directory
))
797 (read-file-name "Store in directory: " nil nil t nil
))
799 (equal t mh-mime-save-parts-default-directory
))
800 mh-mime-save-parts-directory
)
801 (read-file-name (format
802 "Store in directory: [%s] "
803 mh-mime-save-parts-directory
)
804 "" mh-mime-save-parts-directory t
""))
805 ((stringp mh-mime-save-parts-default-directory
)
806 mh-mime-save-parts-default-directory
)
808 mh-mime-save-parts-directory
))))
809 (if (and (equal directory
"") mh-mime-save-parts-directory
)
810 (setq directory mh-mime-save-parts-directory
))
811 (if (not (file-directory-p directory
))
812 (message "No directory specified")
813 (if (equal nil mh-mime-save-parts-default-directory
)
814 (setq mh-mime-save-parts-directory directory
))
816 (set-buffer (get-buffer-create mh-log-buffer
))
818 (setq mh-mime-save-parts-directory directory
)
819 (let ((initial-size (mh-truncate-log-buffer)))
821 (expand-file-name command mh-progs
) nil t nil
822 (mh-list-to-string (list folder msg
"-auto")))
823 (if (> (buffer-size) initial-size
)
824 (save-window-excursion
825 (switch-to-buffer-other-window mh-log-buffer
)
828 ;; Avoid errors if gnus-sum isn't loaded yet...
829 (defvar gnus-newsgroup-charset nil
)
830 (defvar gnus-newsgroup-name nil
)
832 (defun mh-decode-message-body ()
833 "Decode message based on charset.
834 If message has been encoded for transfer take that into account."
835 (let (ct charset cte
)
836 (goto-char (point-min))
837 (re-search-forward "\n\n" nil t
)
839 (narrow-to-region (point-min) (point))
840 (setq ct
(ignore-errors (mail-header-parse-content-type
841 (message-fetch-field "Content-Type" t
)))
842 charset
(mail-content-type-get ct
'charset
)
843 cte
(message-fetch-field "Content-Transfer-Encoding")))
844 (when (stringp cte
) (setq cte
(mail-header-strip cte
)))
845 (when (or (not ct
) (equal (car ct
) "text/plain"))
847 (narrow-to-region (min (1+ (mh-mail-header-end)) (point-max))
849 (mm-decode-body charset
850 (and cte
(intern (downcase
851 (gnus-strip-whitespace cte
))))
855 (defun mh-toggle-mh-decode-mime-flag ()
856 "Toggle whether MH-E should decode MIME or not."
858 (setq mh-decode-mime-flag
(not mh-decode-mime-flag
))
860 (message (format "(setq mh-decode-mime-flag %s)" mh-decode-mime-flag
)))
863 (defun mh-decode-message-header ()
864 "Decode RFC2047 encoded message header fields."
865 (when mh-decode-mime-flag
866 (let ((buffer-read-only nil
))
867 (rfc2047-decode-region (point-min) (mh-mail-header-end)))))
870 (defun mh-mime-display (&optional pre-dissected-handles
)
871 "Display (and possibly decode) MIME handles.
872 Optional argument, PRE-DISSECTED-HANDLES is a list of MIME handles. If
873 present they are displayed otherwise the buffer is parsed and then
876 (folder mh-show-folder-buffer
)
877 (raw-message-data (buffer-string)))
878 (flet ((mm-handle-set-external-undisplayer
880 (mh-handle-set-external-undisplayer folder handle function
)))
881 (goto-char (point-min))
882 (unless (search-forward "\n\n" nil t
)
883 (goto-char (point-max))
888 ;; If needed dissect the current buffer
889 (if pre-dissected-handles
890 (setq handles pre-dissected-handles
)
891 (setq handles
(or (mm-dissect-buffer nil
) (mm-uu-dissect)))
892 (setf (mh-mime-handles (mh-buffer-data))
893 (mm-merge-handles handles
894 (mh-mime-handles (mh-buffer-data))))
895 (unless handles
(mh-decode-message-body)))
898 (or (not (stringp (car handles
))) (cdr handles
)))
899 ;; Goto start of message body
900 (goto-char (point-min))
901 (or (search-forward "\n\n" nil t
) (goto-char (point-max)))
904 (delete-region (point) (point-max))
906 ;; Display the MIME handles
907 (mh-mime-display-part handles
))
908 (t (mh-signature-highlight))))
910 (message "Please report this error. The error message is:\n %s"
911 (error-message-string err
))
912 (delete-region (point-min) (point-max))
913 (insert raw-message-data
))))))
915 (defun mh-mime-display-part (handle)
916 "Decides the viewer to call based on the type of HANDLE."
917 (cond ((null handle
) nil
)
918 ((not (stringp (car handle
)))
919 (mh-mime-display-single handle
))
920 ((equal (car handle
) "multipart/alternative")
921 (mh-mime-display-alternative (cdr handle
)))
922 ((and mh-gnus-pgp-support-flag
923 (or (equal (car handle
) "multipart/signed")
924 (equal (car handle
) "multipart/encrypted")))
925 (mh-mime-display-security handle
))
926 (t (mh-mime-display-mixed (cdr handle
)))))
928 (defun mh-mime-display-alternative (handles)
929 "Choose among the alternatives, HANDLES the part that will be displayed.
930 If no part is preferred then all the parts are displayed."
931 (let* ((preferred (mm-preferred-alternative handles
))
932 (others (loop for x in handles unless
(eq x preferred
) collect x
)))
933 (cond ((and preferred
(stringp (car preferred
)))
934 (mh-mime-display-part preferred
)
935 (mh-mime-maybe-display-alternatives others
))
938 (narrow-to-region (point) (if (eobp) (point) (1+ (point))))
939 (mh-mime-display-single preferred
)
940 (mh-mime-maybe-display-alternatives others
)
941 (goto-char (point-max))))
942 (t (mh-mime-display-mixed handles
)))))
944 (defun mh-mime-maybe-display-alternatives (alternatives)
945 "Show buttons for ALTERNATIVES.
946 If `mh-mime-display-alternatives-flag' is non-nil then display buttons for
947 alternative parts that are usually suppressed."
948 (when (and mh-display-buttons-for-alternatives-flag alternatives
)
949 (insert "\n----------------------------------------------------\n")
950 (insert "Alternatives:\n")
951 (dolist (x alternatives
)
953 (mh-insert-mime-button x
(mh-mime-part-index x
) nil
))
954 (insert "\n----------------------------------------------------\n")))
956 (defun mh-mime-display-mixed (handles)
957 "Display the list of MIME parts, HANDLES recursively."
958 (mapcar #'mh-mime-display-part handles
))
960 (defun mh-mime-part-index (handle)
961 "Generate the button number for MIME part, HANDLE.
962 Notice that a hash table is used to display the same number when buttons need
963 to be displayed multiple times (for instance when nested messages are
965 (or (gethash handle
(mh-mime-part-index-hash (mh-buffer-data)))
966 (setf (gethash handle
(mh-mime-part-index-hash (mh-buffer-data)))
967 (incf (mh-mime-parts-count (mh-buffer-data))))))
969 (defun mh-small-image-p (handle)
970 "Decide whether HANDLE is a \"small\" image that can be displayed inline.
971 This is only useful if a Content-Disposition header is not present."
972 (let ((media-test (caddr (assoc (car (mm-handle-type handle
))
973 mh-mm-inline-media-tests
)))
974 (mm-inline-large-images t
))
976 (equal (mm-handle-media-supertype handle
) "image")
977 (funcall media-test handle
) ; Since mm-inline-large-images is T,
978 ; this only tells us if the image is
979 ; something that emacs can display
980 (let* ((image (mm-get-image handle
)))
982 (and (mh-funcall-if-exists glyphp image
)
983 (< (glyph-width image
)
984 (or mh-max-inline-image-width
(window-pixel-width)))
985 (< (glyph-height image
)
986 (or mh-max-inline-image-height
987 (window-pixel-height)))))
989 (let ((size (mh-funcall-if-exists image-size image
)))
991 (< (cdr size
) (or mh-max-inline-image-height
992 (1- (window-height))))
993 (< (car size
) (or mh-max-inline-image-width
994 (window-width)))))))))))
996 (defun mh-inline-vcard-p (handle)
997 "Decide if HANDLE is a vcard that must be displayed inline."
998 (let ((type (mm-handle-type handle
)))
999 (and (or (featurep 'vcard
) (fboundp 'vcard-pretty-print
))
1001 (equal (car type
) "text/x-vcard")
1005 (goto-char (point-min))
1006 (not (mh-signature-separator-p)))))))
1008 (defun mh-mime-display-single (handle)
1009 "Display a leaf node, HANDLE in the MIME tree."
1010 (let* ((type (mm-handle-media-type handle
))
1011 (small-image-flag (mh-small-image-p handle
))
1012 (attachmentp (equal (car (mm-handle-disposition handle
))
1014 (inlinep (and (equal (car (mm-handle-disposition handle
)) "inline")
1015 (mm-inlinable-p handle
)
1016 (mm-inlined-p handle
)))
1017 (displayp (or inlinep
; show if inline OR
1018 (mh-inline-vcard-p handle
); inline vcard OR
1019 (and (not attachmentp
) ; if not an attachment
1020 (or small-image-flag
; and small image
1021 ; and user wants inline
1023 (mm-handle-media-supertype handle
)
1025 (mm-inlinable-p handle
)
1026 (mm-inlined-p handle
)))))))
1028 (narrow-to-region (point) (if (eobp) (point) (1+ (point))))
1029 (cond ((and mh-gnus-pgp-support-flag
1030 (equal type
"application/pgp-signature"))
1031 nil
) ; skip signatures as they are already handled...
1034 (mh-insert-mime-button handle
(mh-mime-part-index handle
) nil
))
1035 ((and displayp
(not mh-display-buttons-for-inline-parts-flag
))
1036 (or (mm-display-part handle
) (mm-display-part handle
))
1037 (mh-signature-highlight handle
))
1038 ((and displayp mh-display-buttons-for-inline-parts-flag
)
1040 (mh-insert-mime-button handle
(mh-mime-part-index handle
) nil
)
1042 (mh-mm-display-part handle
)))
1043 (goto-char (point-max)))))
1045 (defun mh-signature-highlight (&optional handle
)
1046 "Highlight message signature in HANDLE.
1047 The optional argument, HANDLE is a MIME handle if the function is being used
1048 to highlight the signature in a MIME part."
1050 (cond ((not handle
) "^-- $")
1051 ((not (and (equal (mm-handle-media-supertype handle
) "text")
1052 (equal (mm-handle-media-subtype handle
) "html")))
1054 ((eq (mh-mm-text-html-renderer) 'lynx
) "^ --$")
1057 (goto-char (point-max))
1058 (when (re-search-backward regexp nil t
)
1060 (let ((ov (make-overlay (point) (point-max))))
1061 (overlay-put ov
'face
'mh-show-signature-face
)
1062 (overlay-put ov
'evaporate t
)))
1064 (set-extent-property (make-extent (point) (point-max))
1065 'face
'mh-show-signature-face
))))))
1071 (defun mh-insert-mime-button (handle index displayed
)
1072 "Insert MIME button for HANDLE.
1073 INDEX is the part number that will be DISPLAYED. It is also used by commands
1074 like \"K v\" which operate on individual MIME parts."
1075 ;; The button could be displayed by a previous decode. In that case
1076 ;; undisplay it if we need a hidden button.
1077 (when (and (mm-handle-displayed-p handle
) (not displayed
))
1078 (mm-display-part handle
))
1079 (let ((name (or (mail-content-type-get (mm-handle-type handle
) 'name
)
1080 (mail-content-type-get (mm-handle-disposition handle
)
1082 (mail-content-type-get (mm-handle-type handle
) 'url
)
1084 (type (mm-handle-media-type handle
))
1085 (description (mail-decode-encoded-word-string
1086 (or (mm-handle-description handle
) "")))
1087 (dots (if (or displayed
(mm-handle-displayed-p handle
)) " " "..."))
1088 long-type begin end
)
1089 (if (string-match ".*/" name
) (setq name
(substring name
(match-end 0))))
1090 (setq long-type
(concat type
(and (not (equal name
""))
1091 (concat "; " name
))))
1092 (unless (equal description
"")
1093 (setq long-type
(concat " --- " long-type
)))
1094 (unless (bolp) (insert "\n"))
1095 (setq begin
(point))
1097 mh-mime-button-line-format mh-mime-button-line-format-alist
1098 `(,@(gnus-local-map-property mh-mime-button-map
)
1099 mh-callback mh-mm-display-part
1103 (widget-convert-button
1106 :action
'mh-widget-press-button
1107 :button-keymap mh-mime-button-map
1109 "Mouse-2 click or press RET (in show buffer) to toggle display")
1110 (dolist (ov (mh-funcall-if-exists overlays-in begin end
))
1111 (mh-funcall-if-exists overlay-put ov
'evaporate t
))))
1113 ;; There is a bug in Gnus inline image display due to which an extra line
1114 ;; gets inserted every time it is viewed. To work around that problem we are
1115 ;; using an extra property 'mh-region to remember the region that is added
1116 ;; when the button is clicked. The region is then deleted to make sure that
1117 ;; no extra lines get inserted.
1118 (defun mh-mm-display-part (handle)
1119 "Toggle display of button for MIME part, HANDLE."
1121 (let ((id (get-text-property (point) 'mh-part
))
1123 (window (selected-window))
1124 (mail-parse-charset 'nil
)
1125 (mail-parse-ignored-charsets nil
)
1126 region buffer-read-only
)
1129 (let ((win (get-buffer-window (current-buffer) t
)))
1131 (select-window win
))
1134 (if (mm-handle-displayed-p handle
)
1135 ;; This will remove the part.
1137 ;; Delete the button and displayed part (if any)
1138 (let ((region (get-text-property point
'mh-region
)))
1140 (mh-funcall-if-exists
1141 remove-images
(car region
) (cdr region
)))
1142 (mm-display-part handle
)
1144 (delete-region (car region
) (cdr region
))))
1145 ;; Delete button (if it still remains). This happens for
1146 ;; externally displayed parts where the previous step does
1149 (delete-region (point) (progn (forward-line) (point)))))
1151 (delete-region (point) (progn (forward-line 1) (point)))
1152 (narrow-to-region (point) (point))
1153 ;; Maybe we need another unwind-protect here.
1154 (when (equal (mm-handle-media-supertype handle
) "image")
1156 (when (and (not (eq (ignore-errors (mm-display-part handle
))
1158 (equal (mm-handle-media-supertype handle
)
1160 (goto-char (point-min))
1162 (when (equal (mm-handle-media-supertype handle
) "text")
1163 (when (eq mh-highlight-citation-p
'gnus
)
1164 (mh-gnus-article-highlight-citation))
1165 (mh-display-smileys)
1166 (mh-display-emphasis)
1167 (mh-signature-highlight handle
))
1168 (setq region
(cons (progn (goto-char (point-min))
1170 (progn (goto-char (point-max))
1171 (point-marker)))))))
1172 (when (window-live-p window
)
1173 (select-window window
))
1176 (mh-insert-mime-button handle id
(mm-handle-displayed-p handle
))
1179 (add-text-properties (line-beginning-position) (line-end-position)
1180 `(mh-region ,region
)))))))
1183 (defun mh-press-button ()
1185 If the MIME part is visible then it is removed. Otherwise the part is
1188 (let ((mm-inline-media-tests mh-mm-inline-media-tests
)
1189 (data (get-text-property (point) 'mh-data
))
1190 (function (get-text-property (point) 'mh-callback
))
1191 (buffer-read-only nil
)
1192 (folder mh-show-folder-buffer
))
1193 (flet ((mm-handle-set-external-undisplayer
1195 (mh-handle-set-external-undisplayer folder handle function
)))
1196 (when (and function
(eolp))
1198 (unwind-protect (and function
(funcall function data
))
1199 (set-buffer-modified-p nil
)))))
1202 (defun mh-push-button (event)
1203 "Click MIME button for EVENT.
1204 If the MIME part is visible then it is removed. Otherwise the part is
1205 displayed. This function is called when the mouse is used to click the MIME
1208 (mh-do-at-event-location event
1209 (let ((folder mh-show-folder-buffer
)
1210 (mm-inline-media-tests mh-mm-inline-media-tests
)
1211 (data (get-text-property (point) 'mh-data
))
1212 (function (get-text-property (point) 'mh-callback
)))
1213 (flet ((mm-handle-set-external-undisplayer (handle func
)
1214 (mh-handle-set-external-undisplayer folder handle func
)))
1215 (and function
(funcall function data
))))))
1218 (defun mh-mime-save-part ()
1219 "Save MIME part at point."
1221 (let ((data (get-text-property (point) 'mh-data
)))
1223 (let ((mm-default-directory
1224 (file-name-as-directory (or mh-mime-save-parts-directory
1225 default-directory
))))
1226 (mh-mm-save-part data
)
1227 (setq mh-mime-save-parts-directory mm-default-directory
)))))
1230 (defun mh-mime-inline-part ()
1231 "Toggle display of the raw MIME part."
1233 (let* ((buffer-read-only nil
)
1234 (data (get-text-property (point) 'mh-data
))
1235 (inserted-flag (get-text-property (point) 'mh-mime-inserted
))
1236 (displayed-flag (mm-handle-displayed-p data
))
1239 (cond ((and data
(not inserted-flag
) (not displayed-flag
))
1240 (let ((contents (mm-get-part data
)))
1241 (add-text-properties (line-beginning-position) (line-end-position)
1242 '(mh-mime-inserted t
))
1243 (setq start
(point-marker))
1245 (mm-insert-inline data contents
)
1246 (setq end
(point-marker))
1247 (add-text-properties
1248 start
(progn (goto-char start
) (line-end-position))
1249 `(mh-region (,start .
,end
)))))
1250 ((and data
(or inserted-flag displayed-flag
))
1252 (message "MIME part already inserted")))
1254 (set-buffer-modified-p nil
)))
1257 (defun mh-display-with-external-viewer (part-index)
1258 "View MIME PART-INDEX externally."
1260 (when (consp part-index
) (setq part-index
(car part-index
)))
1261 (mh-folder-mime-action
1264 (let* ((part (get-text-property (point) 'mh-data
))
1265 (type (mm-handle-media-type part
))
1266 (methods (mapcar (lambda (x) (list (cdr (assoc 'viewer x
))))
1267 (mailcap-mime-info type
'all
)))
1268 (def (caar methods
))
1269 (prompt (format "Viewer: %s" (if def
(format "[%s] " def
) "")))
1270 (method (completing-read prompt methods nil nil nil nil def
))
1271 (folder mh-show-folder-buffer
)
1272 (buffer-read-only nil
))
1273 (when (string-match "^[^% \t]+$" method
)
1274 (setq method
(concat method
" %s")))
1275 (flet ((mm-handle-set-external-undisplayer (handle function
)
1276 (mh-handle-set-external-undisplayer folder handle function
)))
1277 (unwind-protect (mm-display-external part method
)
1278 (set-buffer-modified-p nil
)))))
1281 (defun mh-widget-press-button (widget el
)
1282 "Callback for widget, WIDGET.
1283 Parameter EL is unused."
1284 (goto-char (widget-get widget
:from
))
1287 (defun mh-mime-display-security (handle)
1288 "Display PGP encrypted/signed message, HANDLE."
1290 (narrow-to-region (point) (point))
1292 (mh-insert-mime-security-button handle
)
1293 (mh-mime-display-mixed (cdr handle
))
1295 (let ((mh-mime-security-button-line-format
1296 mh-mime-security-button-end-line-format
))
1297 (mh-insert-mime-security-button handle
))
1298 (mm-set-handle-multipart-parameter
1299 handle
'mh-region
(cons (point-min-marker) (point-max-marker)))))
1301 ;;; I rewrote the security part because Gnus doesn't seem to ever minimize
1302 ;;; the button. That is once the mime-security button is pressed there seems
1303 ;;; to be no way of getting rid of the inserted text.
1304 (defun mh-mime-security-show-details (handle)
1305 "Toggle display of detailed security info for HANDLE."
1306 (let ((details (mm-handle-multipart-ctl-parameter handle
'gnus-details
)))
1308 (let ((mh-mime-security-button-pressed
1309 (not (get-text-property (point) 'mh-button-pressed
)))
1310 (mh-mime-security-button-line-format
1311 (get-text-property (point) 'mh-line-format
)))
1313 (while (eq (get-text-property (point) 'mh-line-format
)
1314 mh-mime-security-button-line-format
)
1318 (narrow-to-region (point) (point))
1319 (mh-insert-mime-security-button handle
))
1322 (or (text-property-not-all
1324 'mh-line-format mh-mime-security-button-line-format
)
1326 (forward-line -
1)))))
1328 (defun mh-mime-security-press-button (handle)
1329 "Callback from security button for part HANDLE."
1330 (if (mm-handle-multipart-ctl-parameter handle
'gnus-info
)
1331 (mh-mime-security-show-details handle
)
1332 (let ((region (mm-handle-multipart-ctl-parameter handle
'mh-region
))
1334 (setq point
(point))
1335 (goto-char (car region
))
1336 (delete-region (car region
) (cdr region
))
1337 (with-current-buffer (mm-handle-multipart-ctl-parameter handle
'buffer
)
1338 (let* ((mm-verify-option 'known
)
1339 (mm-decrypt-option 'known
)
1340 (new (mm-possibly-verify-or-decrypt (cdr handle
) handle
)))
1341 (unless (eq new
(cdr handle
))
1342 (mm-destroy-parts (cdr handle
))
1343 (setcdr handle new
))))
1344 (mh-mime-display-security handle
)
1345 (goto-char point
))))
1347 ;; These variables should already be initialized in mm-decode.el if we have a
1348 ;; recent enough Gnus. The defvars are here to avoid compiler warnings.
1349 (defvar mm-verify-function-alist nil
)
1350 (defvar mm-decrypt-function-alist nil
)
1352 (defvar pressed-details
)
1354 (defun mh-insert-mime-security-button (handle)
1355 "Display buttons for PGP message, HANDLE."
1356 (let* ((protocol (mm-handle-multipart-ctl-parameter handle
'protocol
))
1357 (crypto-type (or (nth 2 (assoc protocol mm-verify-function-alist
))
1358 (nth 2 (assoc protocol mm-decrypt-function-alist
))
1360 (type (concat crypto-type
1361 (if (equal (car handle
) "multipart/signed")
1362 " Signed" " Encrypted")
1364 (info (or (mm-handle-multipart-ctl-parameter handle
'gnus-info
)
1366 (details (mm-handle-multipart-ctl-parameter handle
'gnus-details
))
1367 pressed-details begin end
)
1368 (setq details
(if details
(concat "\n" details
) ""))
1369 (setq pressed-details
(if mh-mime-security-button-pressed details
""))
1370 (unless (bolp) (insert "\n"))
1371 (setq begin
(point))
1373 mh-mime-security-button-line-format
1374 mh-mime-security-button-line-format-alist
1375 `(,@(gnus-local-map-property mh-mime-security-button-map
)
1376 mh-button-pressed
,mh-mime-security-button-pressed
1377 mh-callback mh-mime-security-press-button
1378 mh-line-format
,mh-mime-security-button-line-format
1381 (widget-convert-button 'link begin end
1383 :action
'mh-widget-press-button
1384 :button-keymap mh-mime-security-button-map
1385 :help-echo
"Mouse-2 click or press RET (in show buffer) to see security details.")
1386 (dolist (ov (mh-funcall-if-exists overlays-in begin end
))
1387 (mh-funcall-if-exists overlay-put ov
'evaporate t
))
1388 (when (equal info
"Failed")
1389 (let* ((type (if (equal (car handle
) "multipart/signed")
1390 "verification" "decryption"))
1391 (warning (if (equal type
"decryption")
1392 "(passphrase may be incorrect)" "")))
1393 (message "%s %s failed %s" crypto-type type warning
)))))
1395 (defun mh-mm-inline-message (handle)
1396 "Display message, HANDLE.
1397 The function decodes the message and displays it. It avoids decoding the same
1398 message multiple times."
1400 (clean-message-header mh-clean-message-header-flag
)
1401 (invisible-headers mh-invisible-header-fields-compiled
)
1402 (visible-headers nil
))
1405 (narrow-to-region b b
)
1406 (mm-insert-part handle
)
1408 (or (gethash handle
(mh-mime-handles-cache (mh-buffer-data)))
1409 (setf (gethash handle
(mh-mime-handles-cache (mh-buffer-data)))
1410 (let ((handles (or (mm-dissect-buffer nil
)
1412 (setf (mh-mime-handles (mh-buffer-data))
1414 handles
(mh-mime-handles (mh-buffer-data))))
1417 (goto-char (point-min))
1419 (cond (clean-message-header
1420 (mh-clean-msg-header (point-min)
1423 (goto-char (point-min)))
1425 (mh-start-of-uncleaned-message)))
1426 (mh-decode-message-header)
1428 ;; The other highlighting types don't need anything special
1429 (when (eq mh-highlight-citation-p
'gnus
)
1430 (mh-gnus-article-highlight-citation))
1431 (goto-char (point-min))
1432 (insert "\n------- Forwarded Message\n\n")
1433 (mh-display-smileys)
1434 (mh-display-emphasis)
1435 (mm-handle-set-undisplayer
1438 (let (buffer-read-only)
1439 (if (fboundp 'remove-specifier
)
1440 ;; This is only valid on XEmacs.
1441 (mapcar (lambda (prop)
1443 (face-property 'default prop
) (current-buffer)))
1444 '(background background-pixmap foreground
)))
1445 (delete-region ,(point-min-marker) ,(point-max-marker)))))))))
1449 ;;; Local Variables:
1450 ;;; indent-tabs-mode: nil
1451 ;;; sentence-end-double-space: nil
1454 ;;; arch-tag: 0dd36518-1b64-4a84-8f4e-59f422d3f002
1455 ;;; mh-mime.el ends here