HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| 23f87bed | 1 | ;;; mm-decode.el --- Functions for decoding MIME things |
| e84b4b86 | 2 | |
| ba318903 | 3 | ;; Copyright (C) 1998-2014 Free Software Foundation, Inc. |
| c113de23 GM |
4 | |
| 5 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> | |
| 6 | ;; MORIOKA Tomohiko <morioka@jaist.ac.jp> | |
| 7 | ;; This file is part of GNU Emacs. | |
| 8 | ||
| 5e809f55 | 9 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| c113de23 | 10 | ;; it under the terms of the GNU General Public License as published by |
| 5e809f55 GM |
11 | ;; the Free Software Foundation, either version 3 of the License, or |
| 12 | ;; (at your option) any later version. | |
| c113de23 GM |
13 | |
| 14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 5e809f55 | 16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| c113de23 GM |
17 | ;; GNU General Public License for more details. |
| 18 | ||
| 19 | ;; You should have received a copy of the GNU General Public License | |
| 5e809f55 | 20 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| c113de23 GM |
21 | |
| 22 | ;;; Commentary: | |
| 23 | ||
| 24 | ;;; Code: | |
| 25 | ||
| 26 | (require 'mail-parse) | |
| c113de23 | 27 | (require 'mm-bodies) |
| c7641e3c | 28 | (eval-when-compile (require 'cl)) |
| c113de23 | 29 | |
| aa8f8277 GM |
30 | (autoload 'gnus-map-function "gnus-util") |
| 31 | (autoload 'gnus-replace-in-string "gnus-util") | |
| 32 | (autoload 'gnus-read-shell-command "gnus-util") | |
| 33 | ||
| 12c9fab6 GM |
34 | (autoload 'mm-inline-partial "mm-partial") |
| 35 | (autoload 'mm-inline-external-body "mm-extern") | |
| 36 | (autoload 'mm-extern-cache-contents "mm-extern") | |
| 37 | (autoload 'mm-insert-inline "mm-view") | |
| c113de23 | 38 | |
| 89b163db G |
39 | (autoload 'mm-archive-decoders "mm-archive") |
| 40 | (autoload 'mm-archive-dissect-and-inline "mm-archive") | |
| 41 | (autoload 'mm-dissect-archive "mm-archive") | |
| 42 | ||
| b7e9d9c3 JB |
43 | (defvar gnus-current-window-configuration) |
| 44 | ||
| 23f87bed | 45 | (add-hook 'gnus-exit-gnus-hook 'mm-destroy-postponed-undisplay-list) |
| a025f7d6 | 46 | (add-hook 'gnus-exit-gnus-hook 'mm-temp-files-delete) |
| 23f87bed | 47 | |
| c113de23 GM |
48 | (defgroup mime-display () |
| 49 | "Display of MIME in mail and news articles." | |
| 23f87bed | 50 | :link '(custom-manual "(emacs-mime)Display Customization") |
| c113de23 GM |
51 | :version "21.1" |
| 52 | :group 'mail | |
| 53 | :group 'news | |
| 54 | :group 'multimedia) | |
| 55 | ||
| 23f87bed MB |
56 | (defgroup mime-security () |
| 57 | "MIME security in mail and news articles." | |
| 58 | :link '(custom-manual "(emacs-mime)Display Customization") | |
| 59 | :group 'mail | |
| 60 | :group 'news | |
| 61 | :group 'multimedia) | |
| 62 | ||
| 89cccc2f G |
63 | (defface mm-command-output |
| 64 | '((((class color) | |
| 65 | (background dark)) | |
| 66 | (:foreground "ForestGreen")) | |
| 67 | (((class color) | |
| 68 | (background light)) | |
| 69 | (:foreground "red3")) | |
| 70 | (t | |
| 71 | (:italic t))) | |
| 72 | "Face used for displaying output from commands." | |
| 73 | :group 'mime-display) | |
| 74 | ||
| c113de23 GM |
75 | ;;; Convenience macros. |
| 76 | ||
| 77 | (defmacro mm-handle-buffer (handle) | |
| 78 | `(nth 0 ,handle)) | |
| 79 | (defmacro mm-handle-type (handle) | |
| 80 | `(nth 1 ,handle)) | |
| 81 | (defsubst mm-handle-media-type (handle) | |
| 82 | (if (stringp (car handle)) | |
| 83 | (car handle) | |
| 84 | (car (mm-handle-type handle)))) | |
| 85 | (defsubst mm-handle-media-supertype (handle) | |
| 86 | (car (split-string (mm-handle-media-type handle) "/"))) | |
| 87 | (defsubst mm-handle-media-subtype (handle) | |
| 88 | (cadr (split-string (mm-handle-media-type handle) "/"))) | |
| 89 | (defmacro mm-handle-encoding (handle) | |
| 90 | `(nth 2 ,handle)) | |
| 91 | (defmacro mm-handle-undisplayer (handle) | |
| 92 | `(nth 3 ,handle)) | |
| 93 | (defmacro mm-handle-set-undisplayer (handle function) | |
| 94 | `(setcar (nthcdr 3 ,handle) ,function)) | |
| 95 | (defmacro mm-handle-disposition (handle) | |
| 96 | `(nth 4 ,handle)) | |
| 97 | (defmacro mm-handle-description (handle) | |
| 98 | `(nth 5 ,handle)) | |
| 99 | (defmacro mm-handle-cache (handle) | |
| 100 | `(nth 6 ,handle)) | |
| 101 | (defmacro mm-handle-set-cache (handle contents) | |
| 102 | `(setcar (nthcdr 6 ,handle) ,contents)) | |
| 103 | (defmacro mm-handle-id (handle) | |
| 104 | `(nth 7 ,handle)) | |
| 23f87bed MB |
105 | (defmacro mm-handle-multipart-original-buffer (handle) |
| 106 | `(get-text-property 0 'buffer (car ,handle))) | |
| 107 | (defmacro mm-handle-multipart-from (handle) | |
| 108 | `(get-text-property 0 'from (car ,handle))) | |
| 109 | (defmacro mm-handle-multipart-ctl-parameter (handle parameter) | |
| 110 | `(get-text-property 0 ,parameter (car ,handle))) | |
| 111 | ||
| c113de23 GM |
112 | (defmacro mm-make-handle (&optional buffer type encoding undisplayer |
| 113 | disposition description cache | |
| 114 | id) | |
| 115 | `(list ,buffer ,type ,encoding ,undisplayer | |
| 116 | ,disposition ,description ,cache ,id)) | |
| 117 | ||
| 23f87bed | 118 | (defcustom mm-text-html-renderer |
| 2526f423 G |
119 | (cond ((fboundp 'libxml-parse-html-region) 'shr) |
| 120 | ((executable-find "w3m") 'gnus-w3m) | |
| 23f87bed MB |
121 | ((executable-find "links") 'links) |
| 122 | ((executable-find "lynx") 'lynx) | |
| 8f7abae3 MB |
123 | ((locate-library "html2text") 'html2text) |
| 124 | (t nil)) | |
| 23f87bed MB |
125 | "Render of HTML contents. |
| 126 | It is one of defined renderer types, or a rendering function. | |
| 127 | The defined renderer types are: | |
| d30dd079 G |
128 | `shr': use the built-in Gnus HTML renderer; |
| 129 | `gnus-w3m': use Gnus renderer based on w3m; | |
| 130 | `w3m': use emacs-w3m; | |
| 131 | `w3m-standalone': use plain w3m; | |
| 23f87bed | 132 | `links': use links; |
| d30dd079 | 133 | `lynx': use lynx; |
| d30dd079 | 134 | `html2text': use html2text; |
| 8f7abae3 | 135 | nil : use external viewer (default web browser)." |
| 1a10d421 | 136 | :version "24.1" |
| 2526f423 G |
137 | :type '(choice (const shr) |
| 138 | (const gnus-w3m) | |
| 20a673b2 | 139 | (const w3m :tag "emacs-w3m") |
| 8f7abae3 | 140 | (const w3m-standalone :tag "standalone w3m" ) |
| 23f87bed MB |
141 | (const links) |
| 142 | (const lynx) | |
| 143 | (const html2text) | |
| 8f7abae3 | 144 | (const nil :tag "External viewer") |
| 23f87bed | 145 | (function)) |
| 23f87bed MB |
146 | :group 'mime-display) |
| 147 | ||
| 23f87bed | 148 | (defcustom mm-inline-text-html-with-images nil |
| 4d2226bf G |
149 | "If non-nil, Gnus will allow retrieving images in HTML that has <img> tags. |
| 150 | See also the documentation for the `mm-w3m-safe-url-regexp' | |
| 151 | variable." | |
| bf247b6e | 152 | :version "22.1" |
| 23f87bed MB |
153 | :type 'boolean |
| 154 | :group 'mime-display) | |
| 155 | ||
| 156 | (defcustom mm-w3m-safe-url-regexp "\\`cid:" | |
| 157 | "Regexp matching URLs which are considered to be safe. | |
| 158 | Some HTML mails might contain a nasty trick used by spammers, using | |
| 159 | the <img> tag which is far more evil than the [Click Here!] button. | |
| 160 | It is most likely intended to check whether the ominous spam mail has | |
| 161 | reached your eyes or not, in which case the spammer knows for sure | |
| 162 | that your email address is valid. It is done by embedding an | |
| 163 | identifier string into a URL that you might automatically retrieve | |
| 164 | when displaying the image. The default value is \"\\\\`cid:\" which only | |
| 165 | matches parts embedded to the Multipart/Related type MIME contents and | |
| 166 | Gnus will never connect to the spammer's site arbitrarily. You may | |
| 167 | set this variable to nil if you consider all urls to be safe." | |
| bf247b6e | 168 | :version "22.1" |
| 23f87bed MB |
169 | :type '(choice (regexp :tag "Regexp") |
| 170 | (const :tag "All URLs are safe" nil)) | |
| 171 | :group 'mime-display) | |
| 172 | ||
| 173 | (defcustom mm-inline-text-html-with-w3m-keymap t | |
| 174 | "If non-nil, use emacs-w3m command keys in the article buffer." | |
| bf247b6e | 175 | :version "22.1" |
| 23f87bed MB |
176 | :type 'boolean |
| 177 | :group 'mime-display) | |
| 178 | ||
| 179 | (defcustom mm-enable-external t | |
| 180 | "Indicate whether external MIME handlers should be used. | |
| 181 | ||
| 182 | If t, all defined external MIME handlers are used. If nil, files are saved by | |
| 183 | `mailcap-save-binary-file'. If it is the symbol `ask', you are prompted | |
| 184 | before the external MIME handler is invoked." | |
| bf247b6e | 185 | :version "22.1" |
| 23f87bed MB |
186 | :type '(choice (const :tag "Always" t) |
| 187 | (const :tag "Never" nil) | |
| 188 | (const :tag "Ask" ask)) | |
| 189 | :group 'mime-display) | |
| 190 | ||
| c113de23 | 191 | (defcustom mm-inline-media-tests |
| 23f87bed | 192 | '(("image/p?jpeg" |
| c113de23 GM |
193 | mm-inline-image |
| 194 | (lambda (handle) | |
| 195 | (mm-valid-and-fit-image-p 'jpeg handle))) | |
| 196 | ("image/png" | |
| 197 | mm-inline-image | |
| 198 | (lambda (handle) | |
| 199 | (mm-valid-and-fit-image-p 'png handle))) | |
| 200 | ("image/gif" | |
| 201 | mm-inline-image | |
| 202 | (lambda (handle) | |
| 203 | (mm-valid-and-fit-image-p 'gif handle))) | |
| 204 | ("image/tiff" | |
| 205 | mm-inline-image | |
| 206 | (lambda (handle) | |
| d1fbe1c3 | 207 | (mm-valid-and-fit-image-p 'tiff handle))) |
| c113de23 GM |
208 | ("image/xbm" |
| 209 | mm-inline-image | |
| 210 | (lambda (handle) | |
| 211 | (mm-valid-and-fit-image-p 'xbm handle))) | |
| 212 | ("image/x-xbitmap" | |
| 213 | mm-inline-image | |
| 214 | (lambda (handle) | |
| 215 | (mm-valid-and-fit-image-p 'xbm handle))) | |
| 216 | ("image/xpm" | |
| 217 | mm-inline-image | |
| 218 | (lambda (handle) | |
| 219 | (mm-valid-and-fit-image-p 'xpm handle))) | |
| 23f87bed | 220 | ("image/x-xpixmap" |
| c113de23 GM |
221 | mm-inline-image |
| 222 | (lambda (handle) | |
| 223 | (mm-valid-and-fit-image-p 'xpm handle))) | |
| 224 | ("image/bmp" | |
| 225 | mm-inline-image | |
| 226 | (lambda (handle) | |
| 227 | (mm-valid-and-fit-image-p 'bmp handle))) | |
| 5bb548d2 DL |
228 | ("image/x-portable-bitmap" |
| 229 | mm-inline-image | |
| 230 | (lambda (handle) | |
| 231 | (mm-valid-and-fit-image-p 'pbm handle))) | |
| c113de23 GM |
232 | ("text/plain" mm-inline-text identity) |
| 233 | ("text/enriched" mm-inline-text identity) | |
| 234 | ("text/richtext" mm-inline-text identity) | |
| 39cde66c | 235 | ("text/x-patch" mm-display-patch-inline identity) |
| 7ab0253d | 236 | ;; In case mime.types uses x-diff (as does Debian's mime-support-3.40). |
| 39cde66c | 237 | ("text/x-diff" mm-display-patch-inline identity) |
| ce9401f3 | 238 | ("application/emacs-lisp" mm-display-elisp-inline identity) |
| 23f87bed | 239 | ("application/x-emacs-lisp" mm-display-elisp-inline identity) |
| 6e3165fb JD |
240 | ("application/x-shellscript" mm-display-shell-script-inline identity) |
| 241 | ("application/x-sh" mm-display-shell-script-inline identity) | |
| 242 | ("text/x-sh" mm-display-shell-script-inline identity) | |
| 008cad90 | 243 | ("application/javascript" mm-display-javascript-inline identity) |
| 01c52d31 | 244 | ("text/dns" mm-display-dns-inline identity) |
| 3f680407 | 245 | ("text/x-org" mm-display-org-inline identity) |
| c113de23 | 246 | ("text/html" |
| 23f87bed | 247 | mm-inline-text-html |
| c113de23 | 248 | (lambda (handle) |
| 2526f423 | 249 | mm-text-html-renderer)) |
| c113de23 | 250 | ("text/x-vcard" |
| 23f87bed | 251 | mm-inline-text-vcard |
| c113de23 GM |
252 | (lambda (handle) |
| 253 | (or (featurep 'vcard) | |
| 254 | (locate-library "vcard")))) | |
| 255 | ("message/delivery-status" mm-inline-text identity) | |
| 256 | ("message/rfc822" mm-inline-message identity) | |
| 257 | ("message/partial" mm-inline-partial identity) | |
| 23f87bed | 258 | ("message/external-body" mm-inline-external-body identity) |
| c113de23 | 259 | ("text/.*" mm-inline-text identity) |
| 89b163db G |
260 | ("application/x-.?tar\\(-.*\\)?" mm-archive-dissect-and-inline identity) |
| 261 | ("application/zip" mm-archive-dissect-and-inline identity) | |
| c113de23 GM |
262 | ("audio/wav" mm-inline-audio |
| 263 | (lambda (handle) | |
| 264 | (and (or (featurep 'nas-sound) (featurep 'native-sound)) | |
| 265 | (device-sound-enabled-p)))) | |
| 266 | ("audio/au" | |
| 267 | mm-inline-audio | |
| 268 | (lambda (handle) | |
| 269 | (and (or (featurep 'nas-sound) (featurep 'native-sound)) | |
| 270 | (device-sound-enabled-p)))) | |
| 271 | ("application/pgp-signature" ignore identity) | |
| 23f87bed MB |
272 | ("application/x-pkcs7-signature" ignore identity) |
| 273 | ("application/pkcs7-signature" ignore identity) | |
| 274 | ("application/x-pkcs7-mime" ignore identity) | |
| 275 | ("application/pkcs7-mime" ignore identity) | |
| c113de23 GM |
276 | ("multipart/alternative" ignore identity) |
| 277 | ("multipart/mixed" ignore identity) | |
| 23f87bed | 278 | ("multipart/related" ignore identity) |
| a3ddc4d9 | 279 | ("image/.*" |
| d1fbe1c3 LMI |
280 | mm-inline-image |
| 281 | (lambda (handle) | |
| 282 | (and (mm-valid-image-format-p 'imagemagick) | |
| 283 | (mm-with-unibyte-buffer | |
| 284 | (mm-insert-part handle) | |
| 285 | (let ((image | |
| 286 | (ignore-errors | |
| 287 | (if (fboundp 'create-image) | |
| 288 | (create-image (buffer-string) 'imagemagick 'data-p) | |
| 89b163db G |
289 | (mm-create-image-xemacs |
| 290 | (mm-handle-media-subtype handle)))))) | |
| d1fbe1c3 LMI |
291 | (when image |
| 292 | (setcar (cdr handle) (list "image/imagemagick")) | |
| 293 | (mm-image-fit-p handle))))))) | |
| 23f87bed MB |
294 | ;; Disable audio and image |
| 295 | ("audio/.*" ignore ignore) | |
| 296 | ("image/.*" ignore ignore) | |
| 297 | ;; Default to displaying as text | |
| 298 | (".*" mm-inline-text mm-readable-p)) | |
| c113de23 | 299 | "Alist of media types/tests saying whether types can be displayed inline." |
| 23f87bed | 300 | :type '(repeat (list (regexp :tag "MIME type") |
| c113de23 GM |
301 | (function :tag "Display function") |
| 302 | (function :tag "Display test"))) | |
| 303 | :group 'mime-display) | |
| 304 | ||
| 305 | (defcustom mm-inlined-types | |
| 306 | '("image/.*" "text/.*" "message/delivery-status" "message/rfc822" | |
| 23f87bed MB |
307 | "message/partial" "message/external-body" "application/emacs-lisp" |
| 308 | "application/x-emacs-lisp" | |
| 309 | "application/pgp-signature" "application/x-pkcs7-signature" | |
| 310 | "application/pkcs7-signature" "application/x-pkcs7-mime" | |
| e499bc94 | 311 | "application/pkcs7-mime" |
| 89b163db G |
312 | "application/x-gtar-compressed" |
| 313 | "application/x-tar" | |
| 314 | "application/zip" | |
| e499bc94 MB |
315 | ;; Mutt still uses this even though it has already been withdrawn. |
| 316 | "application/pgp") | |
| 23f87bed MB |
317 | "List of media types that are to be displayed inline. |
| 318 | See also `mm-inline-media-tests', which says how to display a media | |
| 319 | type inline." | |
| 3031d8b0 | 320 | :type '(repeat regexp) |
| 23f87bed MB |
321 | :group 'mime-display) |
| 322 | ||
| 323 | (defcustom mm-keep-viewer-alive-types | |
| 324 | '("application/postscript" "application/msword" "application/vnd.ms-excel" | |
| 325 | "application/pdf" "application/x-dvi") | |
| 326 | "List of media types for which the external viewer will not be killed | |
| 327 | when selecting a different article." | |
| bf247b6e | 328 | :version "22.1" |
| 3031d8b0 | 329 | :type '(repeat regexp) |
| c113de23 | 330 | :group 'mime-display) |
| a1506d29 | 331 | |
| c113de23 | 332 | (defcustom mm-automatic-display |
| 01c52d31 | 333 | '("text/plain" "text/enriched" "text/richtext" "text/html" "text/x-verbatim" |
| c113de23 | 334 | "text/x-vcard" "image/.*" "message/delivery-status" "multipart/.*" |
| 01c52d31 | 335 | "message/rfc822" "text/x-patch" "text/dns" "application/pgp-signature" |
| 23f87bed MB |
336 | "application/emacs-lisp" "application/x-emacs-lisp" |
| 337 | "application/x-pkcs7-signature" | |
| 338 | "application/pkcs7-signature" "application/x-pkcs7-mime" | |
| e499bc94 MB |
339 | "application/pkcs7-mime" |
| 340 | ;; Mutt still uses this even though it has already been withdrawn. | |
| 6e3165fb | 341 | "application/pgp\\'" |
| 3f680407 | 342 | "text/x-org") |
| c113de23 | 343 | "A list of MIME types to be displayed automatically." |
| 3031d8b0 | 344 | :type '(repeat regexp) |
| c113de23 GM |
345 | :group 'mime-display) |
| 346 | ||
| 23f87bed MB |
347 | (defcustom mm-attachment-override-types '("text/x-vcard" |
| 348 | "application/pkcs7-mime" | |
| 349 | "application/x-pkcs7-mime" | |
| 350 | "application/pkcs7-signature" | |
| 351 | "application/x-pkcs7-signature") | |
| c113de23 | 352 | "Types to have \"attachment\" ignored if they can be displayed inline." |
| 3031d8b0 | 353 | :type '(repeat regexp) |
| c113de23 GM |
354 | :group 'mime-display) |
| 355 | ||
| 356 | (defcustom mm-inline-override-types nil | |
| 357 | "Types to be treated as attachments even if they can be displayed inline." | |
| 3031d8b0 | 358 | :type '(repeat regexp) |
| c113de23 GM |
359 | :group 'mime-display) |
| 360 | ||
| 361 | (defcustom mm-automatic-external-display nil | |
| 362 | "List of MIME type regexps that will be displayed externally automatically." | |
| 3031d8b0 | 363 | :type '(repeat regexp) |
| c113de23 GM |
364 | :group 'mime-display) |
| 365 | ||
| 366 | (defcustom mm-discouraged-alternatives nil | |
| 367 | "List of MIME types that are discouraged when viewing multipart/alternative. | |
| 368 | Viewing agents are supposed to view the last possible part of a message, | |
| 369 | as that is supposed to be the richest. However, users may prefer other | |
| 370 | types instead, and this list says what types are most unwanted. If, | |
| 371 | for instance, text/html parts are very unwanted, and text/richtext are | |
| 372 | somewhat unwanted, then the value of this variable should be set | |
| 373 | to: | |
| 374 | ||
| 58090a8d MB |
375 | (\"text/html\" \"text/richtext\") |
| 376 | ||
| 377 | Adding \"image/.*\" might also be useful. Spammers use it as the | |
| e4920bc9 | 378 | preferred part of multipart/alternative messages. See also |
| 3031d8b0 MB |
379 | `gnus-buttonized-mime-types', to which adding \"multipart/alternative\" |
| 380 | enables you to choose manually one of two types those mails include." | |
| 58090a8d | 381 | :type '(repeat regexp) ;; See `mm-preferred-alternative-precedence'. |
| c113de23 GM |
382 | :group 'mime-display) |
| 383 | ||
| 23f87bed MB |
384 | (defcustom mm-tmp-directory |
| 385 | (if (fboundp 'temp-directory) | |
| 386 | (temp-directory) | |
| 387 | (if (boundp 'temporary-file-directory) | |
| 388 | temporary-file-directory | |
| 389 | "/tmp/")) | |
| 390 | "Where mm will store its temporary files." | |
| 391 | :type 'directory | |
| 392 | :group 'mime-display) | |
| c113de23 GM |
393 | |
| 394 | (defcustom mm-inline-large-images nil | |
| a41c2e6d G |
395 | "If t, then all images fit in the buffer. |
| 396 | If 'resize, try to resize the images so they fit." | |
| 397 | :type '(radio | |
| 398 | (const :tag "Inline large images as they are." t) | |
| 399 | (const :tag "Resize large images." resize) | |
| 400 | (const :tag "Do not inline large images." nil)) | |
| c113de23 GM |
401 | :group 'mime-display) |
| 402 | ||
| 01c52d31 | 403 | (defcustom mm-file-name-rewrite-functions |
| 23f87bed | 404 | '(mm-file-name-delete-control mm-file-name-delete-gotchas) |
| 01c52d31 | 405 | "List of functions used for rewriting file names of MIME parts. |
| 23f87bed MB |
406 | Each function takes a file name as input and returns a file name. |
| 407 | ||
| 01c52d31 MB |
408 | Ready-made functions include `mm-file-name-delete-control', |
| 409 | `mm-file-name-delete-gotchas' (you should not remove these two | |
| 410 | functions), `mm-file-name-delete-whitespace', | |
| 411 | `mm-file-name-trim-whitespace', `mm-file-name-collapse-whitespace', | |
| 412 | `mm-file-name-replace-whitespace', `capitalize', `downcase', | |
| 413 | `upcase', and `upcase-initials'." | |
| 414 | :type '(list (set :inline t | |
| 415 | (const mm-file-name-delete-control) | |
| 416 | (const mm-file-name-delete-gotchas) | |
| 417 | (const mm-file-name-delete-whitespace) | |
| 418 | (const mm-file-name-trim-whitespace) | |
| 419 | (const mm-file-name-collapse-whitespace) | |
| 420 | (const mm-file-name-replace-whitespace) | |
| 421 | (const capitalize) | |
| 422 | (const downcase) | |
| 423 | (const upcase) | |
| 424 | (const upcase-initials) | |
| 425 | (repeat :inline t | |
| 426 | :tag "Function" | |
| 427 | function))) | |
| 330f707b | 428 | :version "23.1" ;; No Gnus |
| 01c52d31 MB |
429 | :group 'mime-display) |
| 430 | ||
| 23f87bed MB |
431 | |
| 432 | (defvar mm-path-name-rewrite-functions nil | |
| 433 | "*List of functions for rewriting the full file names of MIME parts. | |
| 434 | This is used when viewing parts externally, and is meant for | |
| 435 | transforming the absolute name so that non-compliant programs can find | |
| 436 | the file where it's saved. | |
| 437 | ||
| 438 | Each function takes a file name as input and returns a file name.") | |
| 439 | ||
| 440 | (defvar mm-file-name-replace-whitespace nil | |
| 441 | "String used for replacing whitespace characters; default is `\"_\"'.") | |
| 442 | ||
| 443 | (defcustom mm-default-directory nil | |
| 444 | "The default directory where mm will save files. | |
| 445 | If not set, `default-directory' will be used." | |
| 446 | :type '(choice directory (const :tag "Default" nil)) | |
| 447 | :group 'mime-display) | |
| 448 | ||
| 449 | (defcustom mm-attachment-file-modes 384 | |
| 450 | "Set the mode bits of saved attachments to this integer." | |
| bf247b6e | 451 | :version "22.1" |
| 23f87bed MB |
452 | :type 'integer |
| 453 | :group 'mime-display) | |
| 454 | ||
| 455 | (defcustom mm-external-terminal-program "xterm" | |
| 456 | "The program to start an external terminal." | |
| bf247b6e | 457 | :version "22.1" |
| 23f87bed MB |
458 | :type 'string |
| 459 | :group 'mime-display) | |
| 460 | ||
| c113de23 GM |
461 | ;;; Internal variables. |
| 462 | ||
| c113de23 GM |
463 | (defvar mm-last-shell-command "") |
| 464 | (defvar mm-content-id-alist nil) | |
| 23f87bed | 465 | (defvar mm-postponed-undisplay-list nil) |
| 89b163db | 466 | (defvar mm-inhibit-auto-detect-attachment nil) |
| a025f7d6 KY |
467 | (defvar mm-temp-files-to-be-deleted nil |
| 468 | "List of temporary files scheduled to be deleted.") | |
| 469 | (defvar mm-temp-files-cache-file (concat ".mm-temp-files-" (user-login-name)) | |
| 470 | "Name of a file that caches a list of temporary files to be deleted. | |
| 471 | The file will be saved in the directory `mm-tmp-directory'.") | |
| c113de23 GM |
472 | |
| 473 | ;; According to RFC2046, in particular, in a digest, the default | |
| 474 | ;; Content-Type value for a body part is changed from "text/plain" to | |
| 475 | ;; "message/rfc822". | |
| 476 | (defvar mm-dissect-default-type "text/plain") | |
| 477 | ||
| 23f87bed MB |
478 | (autoload 'mml2015-verify "mml2015") |
| 479 | (autoload 'mml2015-verify-test "mml2015") | |
| 480 | (autoload 'mml-smime-verify "mml-smime") | |
| 481 | (autoload 'mml-smime-verify-test "mml-smime") | |
| 482 | ||
| 483 | (defvar mm-verify-function-alist | |
| 484 | '(("application/pgp-signature" mml2015-verify "PGP" mml2015-verify-test) | |
| 485 | ("application/x-gnus-pgp-signature" mm-uu-pgp-signed-extract-1 "PGP" | |
| 486 | mm-uu-pgp-signed-test) | |
| 487 | ("application/pkcs7-signature" mml-smime-verify "S/MIME" | |
| 488 | mml-smime-verify-test) | |
| 489 | ("application/x-pkcs7-signature" mml-smime-verify "S/MIME" | |
| 490 | mml-smime-verify-test))) | |
| 491 | ||
| 492 | (defcustom mm-verify-option 'never | |
| 493 | "Option of verifying signed parts. | |
| 494 | `never', not verify; `always', always verify; | |
| 01c52d31 MB |
495 | `known', only verify known protocols. Otherwise, ask user. |
| 496 | ||
| 497 | When set to `always' or `known', you should add | |
| 498 | \"multipart/signed\" to `gnus-buttonized-mime-types' to see | |
| 499 | result of the verification." | |
| bf247b6e | 500 | :version "22.1" |
| 23f87bed MB |
501 | :type '(choice (item always) |
| 502 | (item never) | |
| 503 | (item :tag "only known protocols" known) | |
| 504 | (item :tag "ask" nil)) | |
| 505 | :group 'mime-security) | |
| 506 | ||
| 507 | (autoload 'mml2015-decrypt "mml2015") | |
| 508 | (autoload 'mml2015-decrypt-test "mml2015") | |
| 509 | ||
| 510 | (defvar mm-decrypt-function-alist | |
| 511 | '(("application/pgp-encrypted" mml2015-decrypt "PGP" mml2015-decrypt-test) | |
| 512 | ("application/x-gnus-pgp-encrypted" mm-uu-pgp-encrypted-extract-1 "PGP" | |
| 513 | mm-uu-pgp-encrypted-test))) | |
| 514 | ||
| 515 | (defcustom mm-decrypt-option nil | |
| 516 | "Option of decrypting encrypted parts. | |
| 517 | `never', not decrypt; `always', always decrypt; | |
| 518 | `known', only decrypt known protocols. Otherwise, ask user." | |
| bf247b6e | 519 | :version "22.1" |
| 23f87bed MB |
520 | :type '(choice (item always) |
| 521 | (item never) | |
| 522 | (item :tag "only known protocols" known) | |
| 523 | (item :tag "ask" nil)) | |
| 524 | :group 'mime-security) | |
| 525 | ||
| 526 | (defvar mm-viewer-completion-map | |
| 527 | (let ((map (make-sparse-keymap 'mm-viewer-completion-map))) | |
| 528 | (set-keymap-parent map minibuffer-local-completion-map) | |
| c615a00c SM |
529 | ;; Should we bind other key to minibuffer-complete-word? |
| 530 | (define-key map " " 'self-insert-command) | |
| 23f87bed MB |
531 | map) |
| 532 | "Keymap for input viewer with completion.") | |
| 533 | ||
| c113de23 GM |
534 | ;;; The functions. |
| 535 | ||
| 23f87bed MB |
536 | (defun mm-alist-to-plist (alist) |
| 537 | "Convert association list ALIST into the equivalent property-list form. | |
| 538 | The plist is returned. This converts from | |
| 539 | ||
| 540 | \((a . 1) (b . 2) (c . 3)) | |
| 541 | ||
| 542 | into | |
| 543 | ||
| 544 | \(a 1 b 2 c 3) | |
| 545 | ||
| 546 | The original alist is not modified. See also `destructive-alist-to-plist'." | |
| 547 | (let (plist) | |
| 548 | (while alist | |
| 549 | (let ((el (car alist))) | |
| 550 | (setq plist (cons (cdr el) (cons (car el) plist)))) | |
| 551 | (setq alist (cdr alist))) | |
| 552 | (nreverse plist))) | |
| 553 | ||
| 554 | (defun mm-keep-viewer-alive-p (handle) | |
| 555 | "Say whether external viewer for HANDLE should stay alive." | |
| 556 | (let ((types mm-keep-viewer-alive-types) | |
| 557 | (type (mm-handle-media-type handle)) | |
| 558 | ty) | |
| 559 | (catch 'found | |
| 560 | (while (setq ty (pop types)) | |
| 561 | (when (string-match ty type) | |
| 562 | (throw 'found t)))))) | |
| 563 | ||
| 564 | (defun mm-handle-set-external-undisplayer (handle function) | |
| 565 | "Set the undisplayer for HANDLE to FUNCTION. | |
| 566 | Postpone undisplaying of viewers for types in | |
| 567 | `mm-keep-viewer-alive-types'." | |
| 568 | (if (mm-keep-viewer-alive-p handle) | |
| 569 | (let ((new-handle (copy-sequence handle))) | |
| 570 | (mm-handle-set-undisplayer new-handle function) | |
| 571 | (mm-handle-set-undisplayer handle nil) | |
| 572 | (push new-handle mm-postponed-undisplay-list)) | |
| 573 | (mm-handle-set-undisplayer handle function))) | |
| 574 | ||
| 575 | (defun mm-destroy-postponed-undisplay-list () | |
| 576 | (when mm-postponed-undisplay-list | |
| 577 | (message "Destroying external MIME viewers") | |
| 578 | (mm-destroy-parts mm-postponed-undisplay-list))) | |
| 579 | ||
| a025f7d6 KY |
580 | (defun mm-temp-files-delete () |
| 581 | "Delete temporary files and those parent directories. | |
| 582 | Note that the deletion may fail if a program is catching hold of a file | |
| 583 | under Windows or Cygwin. In that case, it schedules the deletion of | |
| 584 | files left at the next time." | |
| 585 | (let* ((coding-system-for-read mm-universal-coding-system) | |
| 586 | (coding-system-for-write mm-universal-coding-system) | |
| 587 | (cache-file (expand-file-name mm-temp-files-cache-file | |
| 588 | mm-tmp-directory)) | |
| 589 | (cache (when (file-exists-p cache-file) | |
| 590 | (mm-with-multibyte-buffer | |
| 591 | (insert-file-contents cache-file) | |
| 592 | (split-string (buffer-string) "\n" t)))) | |
| 593 | fails) | |
| 594 | (dolist (temp (append cache mm-temp-files-to-be-deleted)) | |
| efa44122 KY |
595 | (when (and (file-exists-p temp) |
| 596 | (if (file-directory-p temp) | |
| 597 | ;; A parent directory left at the previous time. | |
| 598 | (progn | |
| 599 | (ignore-errors (delete-directory temp)) | |
| 600 | (file-exists-p temp)) | |
| 601 | ;; Delete a temporary file and its parent directory. | |
| 602 | (ignore-errors (delete-file temp)) | |
| 603 | (or (file-exists-p temp) | |
| a025f7d6 | 604 | (progn |
| efa44122 | 605 | (setq temp (file-name-directory temp)) |
| a025f7d6 | 606 | (ignore-errors (delete-directory temp)) |
| efa44122 | 607 | (file-exists-p temp))))) |
| a025f7d6 KY |
608 | (push temp fails))) |
| 609 | (if fails | |
| 610 | ;; Schedule the deletion of the files left at the next time. | |
| 611 | (progn | |
| 612 | (write-region (concat (mapconcat 'identity (nreverse fails) "\n") | |
| 613 | "\n") | |
| 614 | nil cache-file nil 'silent) | |
| 615 | (set-file-modes cache-file #o600)) | |
| 616 | (when (file-exists-p cache-file) | |
| 6e164c21 KY |
617 | (ignore-errors (delete-file cache-file)))) |
| 618 | (setq mm-temp-files-to-be-deleted nil))) | |
| a025f7d6 | 619 | |
| aa8f8277 GM |
620 | (autoload 'message-fetch-field "message") |
| 621 | ||
| ee7d3cc0 | 622 | (defun mm-dissect-buffer (&optional no-strict-mime loose-mime from) |
| 89b163db G |
623 | "Dissect the current buffer and return a list of MIME handles. |
| 624 | If NO-STRICT-MIME, don't require the message to have a | |
| 625 | MIME-Version header before proceeding." | |
| c113de23 | 626 | (save-excursion |
| ee7d3cc0 | 627 | (let (ct ctl type subtype cte cd description id result) |
| c113de23 GM |
628 | (save-restriction |
| 629 | (mail-narrow-to-head) | |
| 630 | (when (or no-strict-mime | |
| 23f87bed | 631 | loose-mime |
| c113de23 GM |
632 | (mail-fetch-field "mime-version")) |
| 633 | (setq ct (mail-fetch-field "content-type") | |
| c96ec15a | 634 | ctl (and ct (mail-header-parse-content-type ct)) |
| c113de23 | 635 | cte (mail-fetch-field "content-transfer-encoding") |
| c8435226 DD |
636 | cd (or (mail-fetch-field "content-disposition") |
| 637 | (when (and ctl | |
| 638 | (eq 'mm-inline-text | |
| 639 | (cadr (mm-assoc-string-match | |
| 640 | mm-inline-media-tests | |
| 641 | (car ctl))))) | |
| 642 | "inline")) | |
| aa227ba5 KY |
643 | ;; Newlines in description should be stripped so as |
| 644 | ;; not to break the MIME tag into two or more lines. | |
| 645 | description (message-fetch-field "content-description") | |
| 23f87bed | 646 | id (mail-fetch-field "content-id")) |
| ee7d3cc0 | 647 | (unless from |
| c96ec15a | 648 | (setq from (mail-fetch-field "from"))) |
| 23f87bed MB |
649 | ;; FIXME: In some circumstances, this code is running within |
| 650 | ;; an unibyte macro. mail-extract-address-components | |
| 651 | ;; creates unibyte buffers. This `if', though not a perfect | |
| 652 | ;; solution, avoids most of them. | |
| 653 | (if from | |
| 4599d0ec MB |
654 | (setq from (cadr (mail-extract-address-components from)))) |
| 655 | (if description | |
| 656 | (setq description (mail-decode-encoded-word-string | |
| 657 | description))))) | |
| c113de23 GM |
658 | (if (or (not ctl) |
| 659 | (not (string-match "/" (car ctl)))) | |
| 84efb042 | 660 | (mm-dissect-singlepart |
| 967a72c9 | 661 | (list mm-dissect-default-type) |
| 84efb042 | 662 | (and cte (intern (downcase (mail-header-strip cte)))) |
| 967a72c9 KY |
663 | no-strict-mime |
| 664 | (and cd (mail-header-parse-content-disposition cd)) | |
| 665 | description) | |
| c113de23 GM |
666 | (setq type (split-string (car ctl) "/")) |
| 667 | (setq subtype (cadr type) | |
| 54e573e6 | 668 | type (car type)) |
| c113de23 GM |
669 | (setq |
| 670 | result | |
| 671 | (cond | |
| 672 | ((equal type "multipart") | |
| 673 | (let ((mm-dissect-default-type (if (equal subtype "digest") | |
| 674 | "message/rfc822" | |
| 23f87bed MB |
675 | "text/plain")) |
| 676 | (start (cdr (assq 'start (cdr ctl))))) | |
| 677 | (add-text-properties 0 (length (car ctl)) | |
| 678 | (mm-alist-to-plist (cdr ctl)) (car ctl)) | |
| 679 | ||
| 680 | ;; what really needs to be done here is a way to link a | |
| 681 | ;; MIME handle back to it's parent MIME handle (in a multilevel | |
| 682 | ;; MIME article). That would probably require changing | |
| c615a00c | 683 | ;; the mm-handle API so we simply store the multipart buffer |
| 23f87bed MB |
684 | ;; name as a text property of the "multipart/whatever" string. |
| 685 | (add-text-properties 0 (length (car ctl)) | |
| 686 | (list 'buffer (mm-copy-to-buffer) | |
| 687 | 'from from | |
| 688 | 'start start) | |
| 689 | (car ctl)) | |
| ee7d3cc0 | 690 | (cons (car ctl) (mm-dissect-multipart ctl from)))) |
| c113de23 | 691 | (t |
| 23f87bed MB |
692 | (mm-possibly-verify-or-decrypt |
| 693 | (mm-dissect-singlepart | |
| 694 | ctl | |
| 01c52d31 | 695 | (and cte (intern (downcase (mail-header-strip cte)))) |
| 23f87bed | 696 | no-strict-mime |
| c96ec15a | 697 | (and cd (mail-header-parse-content-disposition cd)) |
| 23f87bed | 698 | description id) |
| b0feab7d | 699 | ctl from)))) |
| c113de23 GM |
700 | (when id |
| 701 | (when (string-match " *<\\(.*\\)> *" id) | |
| 702 | (setq id (match-string 1 id))) | |
| 703 | (push (cons id result) mm-content-id-alist)) | |
| 704 | result)))) | |
| 705 | ||
| 706 | (defun mm-dissect-singlepart (ctl cte &optional force cdl description id) | |
| 707 | (when (or force | |
| 708 | (if (equal "text/plain" (car ctl)) | |
| 709 | (assoc 'format ctl) | |
| 710 | t)) | |
| 89b163db G |
711 | ;; Guess what the type of application/octet-stream parts should |
| 712 | ;; really be. | |
| 713 | (let ((filename (cdr (assq 'filename (cdr cdl))))) | |
| 714 | (when (and (not mm-inhibit-auto-detect-attachment) | |
| 715 | (equal (car ctl) "application/octet-stream") | |
| 716 | filename | |
| 717 | (string-match "\\.\\([^.]+\\)$" filename)) | |
| 718 | (let ((new-type (mailcap-extension-to-mime (match-string 1 filename)))) | |
| 719 | (when new-type | |
| 720 | (setcar ctl new-type))))) | |
| 721 | (let ((handle | |
| 722 | (mm-make-handle | |
| 723 | (mm-copy-to-buffer) ctl cte nil cdl description nil id)) | |
| 724 | (decoder (assoc (car ctl) (mm-archive-decoders)))) | |
| 725 | (if (and decoder | |
| 726 | ;; Do automatic decoding | |
| 727 | (cadr decoder) | |
| 728 | (executable-find (caddr decoder))) | |
| 729 | (mm-dissect-archive handle) | |
| 730 | handle)))) | |
| c113de23 | 731 | |
| ee7d3cc0 | 732 | (defun mm-dissect-multipart (ctl from) |
| c113de23 GM |
733 | (goto-char (point-min)) |
| 734 | (let* ((boundary (concat "\n--" (mail-content-type-get ctl 'boundary))) | |
| 735 | (close-delimiter (concat (regexp-quote boundary) "--[ \t]*$")) | |
| 736 | start parts | |
| 737 | (end (save-excursion | |
| 738 | (goto-char (point-max)) | |
| 739 | (if (re-search-backward close-delimiter nil t) | |
| 740 | (match-beginning 0) | |
| 89b163db G |
741 | (point-max)))) |
| 742 | (mm-inhibit-auto-detect-attachment | |
| 743 | (equal (car ctl) "multipart/encrypted"))) | |
| c113de23 | 744 | (setq boundary (concat (regexp-quote boundary) "[ \t]*$")) |
| 4481aa98 | 745 | (while (and (< (point) end) (re-search-forward boundary end t)) |
| c113de23 GM |
746 | (goto-char (match-beginning 0)) |
| 747 | (when start | |
| 748 | (save-excursion | |
| 749 | (save-restriction | |
| 750 | (narrow-to-region start (point)) | |
| ee7d3cc0 | 751 | (setq parts (nconc (list (mm-dissect-buffer t nil from)) parts))))) |
| 23f87bed MB |
752 | (end-of-line 2) |
| 753 | (or (looking-at boundary) | |
| 754 | (forward-line 1)) | |
| c113de23 | 755 | (setq start (point))) |
| 4481aa98 | 756 | (when (and start (< start end)) |
| c113de23 GM |
757 | (save-excursion |
| 758 | (save-restriction | |
| 759 | (narrow-to-region start end) | |
| ee7d3cc0 | 760 | (setq parts (nconc (list (mm-dissect-buffer t nil from)) parts))))) |
| b0feab7d | 761 | (mm-possibly-verify-or-decrypt (nreverse parts) ctl from))) |
| c113de23 GM |
762 | |
| 763 | (defun mm-copy-to-buffer () | |
| 764 | "Copy the contents of the current buffer to a fresh buffer." | |
| d4eb2b7e | 765 | (let ((obuf (current-buffer)) |
| 61dc89b0 | 766 | (mb (mm-multibyte-p)) |
| d4eb2b7e SM |
767 | beg) |
| 768 | (goto-char (point-min)) | |
| 769 | (search-forward-regexp "^\n" nil t) | |
| 770 | (setq beg (point)) | |
| 54e573e6 | 771 | (with-current-buffer |
| 61dc89b0 SM |
772 | (generate-new-buffer " *mm*") |
| 773 | ;; Preserve the data's unibyteness (for url-insert-file-contents). | |
| 774 | (mm-set-buffer-multibyte mb) | |
| c113de23 GM |
775 | (insert-buffer-substring obuf beg) |
| 776 | (current-buffer)))) | |
| 777 | ||
| 23f87bed MB |
778 | (defun mm-display-parts (handle &optional no-default) |
| 779 | (if (stringp (car handle)) | |
| 780 | (mapcar 'mm-display-parts (cdr handle)) | |
| 781 | (if (bufferp (car handle)) | |
| 782 | (save-restriction | |
| 783 | (narrow-to-region (point) (point)) | |
| 784 | (mm-display-part handle) | |
| 785 | (goto-char (point-max))) | |
| 786 | (mapcar 'mm-display-parts handle)))) | |
| 787 | ||
| aa8f8277 GM |
788 | (autoload 'mailcap-parse-mailcaps "mailcap") |
| 789 | (autoload 'mailcap-mime-info "mailcap") | |
| 790 | ||
| a87ee50b | 791 | (defun mm-display-part (handle &optional no-default force) |
| c113de23 GM |
792 | "Display the MIME part represented by HANDLE. |
| 793 | Returns nil if the part is removed; inline if displayed inline; | |
| 794 | external if displayed external." | |
| 795 | (save-excursion | |
| 796 | (mailcap-parse-mailcaps) | |
| a87ee50b KY |
797 | (if (and (not force) |
| 798 | (mm-handle-displayed-p handle)) | |
| c113de23 | 799 | (mm-remove-part handle) |
| 163cb72d MB |
800 | (let* ((ehandle (if (equal (mm-handle-media-type handle) |
| 801 | "message/external-body") | |
| 802 | (progn | |
| 803 | (unless (mm-handle-cache handle) | |
| 804 | (mm-extern-cache-contents handle)) | |
| 805 | (mm-handle-cache handle)) | |
| 806 | handle)) | |
| 807 | (type (mm-handle-media-type ehandle)) | |
| 23f87bed MB |
808 | (method (mailcap-mime-info type)) |
| 809 | (filename (or (mail-content-type-get | |
| 810 | (mm-handle-disposition handle) 'filename) | |
| 811 | (mail-content-type-get | |
| 812 | (mm-handle-type handle) 'name) | |
| 813 | "<file>")) | |
| 89b163db G |
814 | (external mm-enable-external) |
| 815 | (decoder (assoc (car (mm-handle-type handle)) | |
| 816 | (mm-archive-decoders)))) | |
| 817 | (cond | |
| 818 | ((and decoder | |
| 819 | (executable-find (caddr decoder))) | |
| 820 | (mm-archive-dissect-and-inline handle) | |
| 821 | 'inline) | |
| 822 | ((and (mm-inlinable-p ehandle) | |
| 823 | (mm-inlined-p ehandle)) | |
| 89b163db G |
824 | (mm-display-inline handle) |
| 825 | 'inline) | |
| 826 | ((or method | |
| 827 | (not no-default)) | |
| 828 | (if (and (not method) | |
| 829 | (equal "text" (car (split-string type "/")))) | |
| 830 | (progn | |
| 831 | (forward-line 1) | |
| 832 | (mm-insert-inline handle (mm-get-part handle)) | |
| 833 | 'inline) | |
| 834 | (setq external | |
| 835 | (and method ;; If nil, we always use "save". | |
| 23f87bed MB |
836 | (stringp method) ;; 'mailcap-save-binary-file |
| 837 | (or (eq mm-enable-external t) | |
| 838 | (and (eq mm-enable-external 'ask) | |
| 839 | (y-or-n-p | |
| 840 | (concat | |
| 841 | "Display part (" type | |
| 842 | ") using external program" | |
| 843 | ;; Can non-string method ever happen? | |
| 844 | (if (stringp method) | |
| 845 | (concat | |
| 846 | " \"" (format method filename) "\"") | |
| 847 | "") | |
| 89b163db G |
848 | "? ")))))) |
| 849 | (if external | |
| 23f87bed | 850 | (mm-display-external |
| 89b163db G |
851 | handle (or method 'mailcap-save-binary-file)) |
| 852 | (mm-display-external | |
| 853 | handle 'mailcap-save-binary-file))))))))) | |
| c113de23 | 854 | |
| 60ef4154 | 855 | (declare-function gnus-configure-windows "gnus-win" (setting &optional force)) |
| aa8f8277 | 856 | (defvar mailcap-mime-extensions) ; mailcap-mime-info autoloads |
| c7641e3c GM |
857 | (declare-function term-mode "term" ()) |
| 858 | (declare-function term-char-mode "term" ()) | |
| 60ef4154 | 859 | |
| c113de23 GM |
860 | (defun mm-display-external (handle method) |
| 861 | "Display HANDLE using METHOD." | |
| 862 | (let ((outbuf (current-buffer))) | |
| 863 | (mm-with-unibyte-buffer | |
| 864 | (if (functionp method) | |
| 865 | (let ((cur (current-buffer))) | |
| 866 | (if (eq method 'mailcap-save-binary-file) | |
| 867 | (progn | |
| 6eb681a3 | 868 | (set-buffer (generate-new-buffer " *mm*")) |
| c113de23 GM |
869 | (setq method nil)) |
| 870 | (mm-insert-part handle) | |
| 87035689 | 871 | (mm-add-meta-html-tag handle) |
| c113de23 GM |
872 | (let ((win (get-buffer-window cur t))) |
| 873 | (when win | |
| 874 | (select-window win))) | |
| 6eb681a3 | 875 | (switch-to-buffer (generate-new-buffer " *mm*"))) |
| 23f87bed | 876 | (buffer-disable-undo) |
| c113de23 GM |
877 | (mm-set-buffer-file-coding-system mm-binary-coding-system) |
| 878 | (insert-buffer-substring cur) | |
| 879 | (goto-char (point-min)) | |
| 23f87bed MB |
880 | (when method |
| 881 | (message "Viewing with %s" method)) | |
| c113de23 GM |
882 | (let ((mm (current-buffer)) |
| 883 | (non-viewer (assq 'non-viewer | |
| 884 | (mailcap-mime-info | |
| 885 | (mm-handle-media-type handle) t)))) | |
| 886 | (unwind-protect | |
| 887 | (if method | |
| 888 | (funcall method) | |
| 889 | (mm-save-part handle)) | |
| 890 | (when (and (not non-viewer) | |
| 891 | method) | |
| 892 | (mm-handle-set-undisplayer handle mm))))) | |
| 893 | ;; The function is a string to be executed. | |
| 894 | (mm-insert-part handle) | |
| 87035689 | 895 | (mm-add-meta-html-tag handle) |
| 23f87bed | 896 | (let* ((dir (mm-make-temp-file |
| 3efe5554 | 897 | (expand-file-name "emm." mm-tmp-directory) 'dir)) |
| 23f87bed MB |
898 | (filename (or |
| 899 | (mail-content-type-get | |
| 900 | (mm-handle-disposition handle) 'filename) | |
| 901 | (mail-content-type-get | |
| 902 | (mm-handle-type handle) 'name))) | |
| c113de23 GM |
903 | (mime-info (mailcap-mime-info |
| 904 | (mm-handle-media-type handle) t)) | |
| 905 | (needsterm (or (assoc "needsterm" mime-info) | |
| 906 | (assoc "needsterminal" mime-info))) | |
| 907 | (copiousoutput (assoc "copiousoutput" mime-info)) | |
| 908 | file buffer) | |
| 909 | ;; We create a private sub-directory where we store our files. | |
| d55fe5bb | 910 | (set-file-modes dir #o700) |
| c113de23 | 911 | (if filename |
| 23f87bed MB |
912 | (setq file (expand-file-name |
| 913 | (gnus-map-function mm-file-name-rewrite-functions | |
| 914 | (file-name-nondirectory filename)) | |
| 915 | dir)) | |
| cf5a5c38 MB |
916 | ;; Use nametemplate (defined in RFC1524) if it is specified |
| 917 | ;; in mailcap. | |
| 918 | (let ((suffix (cdr (assoc "nametemplate" mime-info)))) | |
| 919 | (if (and suffix | |
| 920 | (string-match "\\`%s\\(\\..+\\)\\'" suffix)) | |
| 921 | (setq suffix (match-string 1 suffix)) | |
| 922 | ;; Otherwise, use a suffix according to | |
| 923 | ;; `mailcap-mime-extensions'. | |
| 924 | (setq suffix (car (rassoc (mm-handle-media-type handle) | |
| 925 | mailcap-mime-extensions)))) | |
| 926 | (setq file (mm-make-temp-file (expand-file-name "mm." dir) | |
| 927 | nil suffix)))) | |
| c113de23 GM |
928 | (let ((coding-system-for-write mm-binary-coding-system)) |
| 929 | (write-region (point-min) (point-max) file nil 'nomesg)) | |
| d55fe5bb MB |
930 | ;; The file is deleted after the viewer exists. If the users edits |
| 931 | ;; the file, changes will be lost. Set file to read-only to make it | |
| 932 | ;; clear. | |
| 933 | (set-file-modes file #o400) | |
| c113de23 | 934 | (message "Viewing with %s" method) |
| 23f87bed MB |
935 | (cond |
| 936 | (needsterm | |
| 937 | (let ((command (mm-mailcap-command | |
| 938 | method file (mm-handle-type handle)))) | |
| 939 | (unwind-protect | |
| 940 | (if window-system | |
| 7cfa5cec KY |
941 | (set-process-sentinel |
| 942 | (start-process "*display*" nil | |
| 943 | mm-external-terminal-program | |
| 944 | "-e" shell-file-name | |
| 945 | shell-command-switch command) | |
| 946 | `(lambda (process state) | |
| 947 | (if (eq 'exit (process-status process)) | |
| 948 | (run-at-time | |
| 949 | 60.0 nil | |
| 950 | (lambda () | |
| 951 | (ignore-errors (delete-file ,file)) | |
| 952 | (ignore-errors (delete-directory | |
| 953 | ,(file-name-directory | |
| 954 | file)))))))) | |
| 23f87bed MB |
955 | (require 'term) |
| 956 | (require 'gnus-win) | |
| 957 | (set-buffer | |
| 958 | (setq buffer | |
| 959 | (make-term "display" | |
| 960 | shell-file-name | |
| 961 | nil | |
| 962 | shell-command-switch command))) | |
| 963 | (term-mode) | |
| 964 | (term-char-mode) | |
| 965 | (set-process-sentinel | |
| 966 | (get-buffer-process buffer) | |
| 967 | `(lambda (process state) | |
| 7cfa5cec KY |
968 | (when (eq 'exit (process-status process)) |
| 969 | (ignore-errors (delete-file ,file)) | |
| 970 | (ignore-errors | |
| 971 | (delete-directory ,(file-name-directory file))) | |
| 972 | (gnus-configure-windows | |
| 973 | ',gnus-current-window-configuration)))) | |
| 23f87bed | 974 | (gnus-configure-windows 'display-term)) |
| 7cfa5cec KY |
975 | (mm-handle-set-external-undisplayer handle (cons file buffer)) |
| 976 | (add-to-list 'mm-temp-files-to-be-deleted file t)) | |
| 23f87bed MB |
977 | (message "Displaying %s..." command)) |
| 978 | 'external) | |
| 979 | (copiousoutput | |
| 980 | (with-current-buffer outbuf | |
| 981 | (forward-line 1) | |
| 982 | (mm-insert-inline | |
| 983 | handle | |
| 984 | (unwind-protect | |
| 985 | (progn | |
| 986 | (call-process shell-file-name nil | |
| 987 | (setq buffer | |
| 988 | (generate-new-buffer " *mm*")) | |
| 989 | nil | |
| 990 | shell-command-switch | |
| 991 | (mm-mailcap-command | |
| 992 | method file (mm-handle-type handle))) | |
| 993 | (if (buffer-live-p buffer) | |
| c615a00c | 994 | (with-current-buffer buffer |
| 23f87bed MB |
995 | (buffer-string)))) |
| 996 | (progn | |
| 997 | (ignore-errors (delete-file file)) | |
| 998 | (ignore-errors (delete-directory | |
| 999 | (file-name-directory file))) | |
| 1000 | (ignore-errors (kill-buffer buffer)))))) | |
| 1001 | 'inline) | |
| 1002 | (t | |
| 58090a8d MB |
1003 | ;; Deleting the temp file should be postponed for some wrappers, |
| 1004 | ;; shell scripts, and so on, which might exit right after having | |
| 1005 | ;; started a viewer command as a background job. | |
| 23f87bed MB |
1006 | (let ((command (mm-mailcap-command |
| 1007 | method file (mm-handle-type handle)))) | |
| 1008 | (unwind-protect | |
| a6933dcc | 1009 | (let ((process-connection-type nil)) |
| 4b91459a MB |
1010 | (start-process "*display*" |
| 1011 | (setq buffer | |
| 1012 | (generate-new-buffer " *mm*")) | |
| 1013 | shell-file-name | |
| 1014 | shell-command-switch command) | |
| 1015 | (set-process-sentinel | |
| 1016 | (get-buffer-process buffer) | |
| 89b163db G |
1017 | (lexical-let ((outbuf outbuf) |
| 1018 | (file file) | |
| 1019 | (buffer buffer) | |
| 1020 | (command command) | |
| 1021 | (handle handle)) | |
| 89b163db G |
1022 | (lambda (process state) |
| 1023 | (when (eq (process-status process) 'exit) | |
| 7cfa5cec KY |
1024 | (run-at-time |
| 1025 | 60.0 nil | |
| 1026 | (lambda () | |
| 1027 | (ignore-errors (delete-file file)) | |
| 1028 | (ignore-errors (delete-directory | |
| 1029 | (file-name-directory file))))) | |
| 89b163db G |
1030 | (when (buffer-live-p outbuf) |
| 1031 | (with-current-buffer outbuf | |
| 1032 | (let ((buffer-read-only nil) | |
| 1033 | (point (point))) | |
| 1034 | (forward-line 2) | |
| 89cccc2f G |
1035 | (let ((start (point))) |
| 1036 | (mm-insert-inline | |
| 1037 | handle (with-current-buffer buffer | |
| 1038 | (buffer-string))) | |
| 1039 | (put-text-property start (point) | |
| 1040 | 'face 'mm-command-output)) | |
| 89b163db G |
1041 | (goto-char point)))) |
| 1042 | (when (buffer-live-p buffer) | |
| 1043 | (kill-buffer buffer))) | |
| 1044 | (message "Displaying %s...done" command))))) | |
| 23f87bed | 1045 | (mm-handle-set-external-undisplayer |
| a025f7d6 KY |
1046 | handle (cons file buffer)) |
| 1047 | (add-to-list 'mm-temp-files-to-be-deleted file t)) | |
| 23f87bed MB |
1048 | (message "Displaying %s..." command)) |
| 1049 | 'external))))))) | |
| a1506d29 | 1050 | |
| c113de23 GM |
1051 | (defun mm-mailcap-command (method file type-list) |
| 1052 | (let ((ctl (cdr type-list)) | |
| 1053 | (beg 0) | |
| 1054 | (uses-stdin t) | |
| 1055 | out sub total) | |
| 23f87bed MB |
1056 | (while (string-match "%{\\([^}]+\\)}\\|'%s'\\|\"%s\"\\|%s\\|%t\\|%%" |
| 1057 | method beg) | |
| c113de23 GM |
1058 | (push (substring method beg (match-beginning 0)) out) |
| 1059 | (setq beg (match-end 0) | |
| 1060 | total (match-string 0 method) | |
| 1061 | sub (match-string 1 method)) | |
| 1062 | (cond | |
| 1063 | ((string= total "%%") | |
| 1064 | (push "%" out)) | |
| 23f87bed MB |
1065 | ((or (string= total "%s") |
| 1066 | ;; We do our own quoting. | |
| 1067 | (string= total "'%s'") | |
| 1068 | (string= total "\"%s\"")) | |
| c113de23 | 1069 | (setq uses-stdin nil) |
| 01c52d31 | 1070 | (push (shell-quote-argument |
| 23f87bed | 1071 | (gnus-map-function mm-path-name-rewrite-functions file)) out)) |
| c113de23 | 1072 | ((string= total "%t") |
| 01c52d31 | 1073 | (push (shell-quote-argument (car type-list)) out)) |
| c113de23 | 1074 | (t |
| 01c52d31 | 1075 | (push (shell-quote-argument (or (cdr (assq (intern sub) ctl)) "")) out)))) |
| c113de23 | 1076 | (push (substring method beg (length method)) out) |
| 23f87bed MB |
1077 | (when uses-stdin |
| 1078 | (push "<" out) | |
| 01c52d31 | 1079 | (push (shell-quote-argument |
| 23f87bed MB |
1080 | (gnus-map-function mm-path-name-rewrite-functions file)) |
| 1081 | out)) | |
| c113de23 | 1082 | (mapconcat 'identity (nreverse out) ""))) |
| a1506d29 | 1083 | |
| c113de23 GM |
1084 | (defun mm-remove-parts (handles) |
| 1085 | "Remove the displayed MIME parts represented by HANDLES." | |
| 1086 | (if (and (listp handles) | |
| 1087 | (bufferp (car handles))) | |
| 1088 | (mm-remove-part handles) | |
| 1089 | (let (handle) | |
| 1090 | (while (setq handle (pop handles)) | |
| 1091 | (cond | |
| 1092 | ((stringp handle) | |
| 23f87bed MB |
1093 | (when (buffer-live-p (get-text-property 0 'buffer handle)) |
| 1094 | (kill-buffer (get-text-property 0 'buffer handle)))) | |
| c113de23 GM |
1095 | ((and (listp handle) |
| 1096 | (stringp (car handle))) | |
| 1097 | (mm-remove-parts (cdr handle))) | |
| 1098 | (t | |
| 1099 | (mm-remove-part handle))))))) | |
| 1100 | ||
| 1101 | (defun mm-destroy-parts (handles) | |
| 1102 | "Remove the displayed MIME parts represented by HANDLES." | |
| 1103 | (if (and (listp handles) | |
| 1104 | (bufferp (car handles))) | |
| 1105 | (mm-destroy-part handles) | |
| 1106 | (let (handle) | |
| 1107 | (while (setq handle (pop handles)) | |
| 1108 | (cond | |
| 1109 | ((stringp handle) | |
| 23f87bed MB |
1110 | (when (buffer-live-p (get-text-property 0 'buffer handle)) |
| 1111 | (kill-buffer (get-text-property 0 'buffer handle)))) | |
| c113de23 GM |
1112 | ((and (listp handle) |
| 1113 | (stringp (car handle))) | |
| 23f87bed | 1114 | (mm-destroy-parts handle)) |
| c113de23 GM |
1115 | (t |
| 1116 | (mm-destroy-part handle))))))) | |
| 1117 | ||
| 1118 | (defun mm-remove-part (handle) | |
| 1119 | "Remove the displayed MIME part represented by HANDLE." | |
| 1120 | (when (listp handle) | |
| 1121 | (let ((object (mm-handle-undisplayer handle))) | |
| 1122 | (ignore-errors | |
| 1123 | (cond | |
| 1124 | ;; Internally displayed part. | |
| 1125 | ((mm-annotationp object) | |
| 60ef4154 GM |
1126 | (if (featurep 'xemacs) |
| 1127 | (delete-annotation object))) | |
| c113de23 GM |
1128 | ((or (functionp object) |
| 1129 | (and (listp object) | |
| 1130 | (eq (car object) 'lambda))) | |
| 1131 | (funcall object)) | |
| 1132 | ;; Externally displayed part. | |
| 1133 | ((consp object) | |
| 23f87bed MB |
1134 | (condition-case () |
| 1135 | (while (get-buffer-process (cdr object)) | |
| 1136 | (interrupt-process (get-buffer-process (cdr object))) | |
| 1137 | (message "Waiting for external displayer to die...") | |
| 1138 | (sit-for 1)) | |
| 1139 | (quit) | |
| 1140 | (error)) | |
| 1141 | (ignore-errors (and (cdr object) (kill-buffer (cdr object)))) | |
| 1142 | (message "Waiting for external displayer to die...done") | |
| c113de23 | 1143 | (ignore-errors (delete-file (car object))) |
| 23f87bed MB |
1144 | (ignore-errors (delete-directory (file-name-directory |
| 1145 | (car object))))) | |
| c113de23 GM |
1146 | ((bufferp object) |
| 1147 | (when (buffer-live-p object) | |
| 1148 | (kill-buffer object))))) | |
| 1149 | (mm-handle-set-undisplayer handle nil)))) | |
| 1150 | ||
| 1151 | (defun mm-display-inline (handle) | |
| 1152 | (let* ((type (mm-handle-media-type handle)) | |
| 1153 | (function (cadr (mm-assoc-string-match mm-inline-media-tests type)))) | |
| 1154 | (funcall function handle) | |
| 1155 | (goto-char (point-min)))) | |
| 1156 | ||
| 1157 | (defun mm-assoc-string-match (alist type) | |
| 1158 | (dolist (elem alist) | |
| 1159 | (when (string-match (car elem) type) | |
| 1160 | (return elem)))) | |
| 1161 | ||
| 23f87bed MB |
1162 | (defun mm-automatic-display-p (handle) |
| 1163 | "Say whether the user wants HANDLE to be displayed automatically." | |
| 1164 | (let ((methods mm-automatic-display) | |
| 1165 | (type (mm-handle-media-type handle)) | |
| 1166 | method result) | |
| 1167 | (while (setq method (pop methods)) | |
| 1168 | (when (and (not (mm-inline-override-p handle)) | |
| 1169 | (string-match method type)) | |
| 1170 | (setq result t | |
| 1171 | methods nil))) | |
| 1172 | result)) | |
| 1173 | ||
| 54e573e6 MB |
1174 | (defun mm-inlinable-p (handle &optional type) |
| 1175 | "Say whether HANDLE can be displayed inline. | |
| 1176 | TYPE is the mime-type of the object; it defaults to the one given | |
| 1177 | in HANDLE." | |
| 1178 | (unless type (setq type (mm-handle-media-type handle))) | |
| c113de23 | 1179 | (let ((alist mm-inline-media-tests) |
| c113de23 GM |
1180 | test) |
| 1181 | (while alist | |
| 1182 | (when (string-match (caar alist) type) | |
| 1183 | (setq test (caddar alist) | |
| 1184 | alist nil) | |
| 1185 | (setq test (funcall test handle))) | |
| 1186 | (pop alist)) | |
| 1187 | test)) | |
| 1188 | ||
| c113de23 | 1189 | (defun mm-inlined-p (handle) |
| 23f87bed | 1190 | "Say whether the user wants HANDLE to be displayed inline." |
| c113de23 GM |
1191 | (let ((methods mm-inlined-types) |
| 1192 | (type (mm-handle-media-type handle)) | |
| 1193 | method result) | |
| 1194 | (while (setq method (pop methods)) | |
| 1195 | (when (and (not (mm-inline-override-p handle)) | |
| 23f87bed | 1196 | (string-match method type)) |
| c113de23 GM |
1197 | (setq result t |
| 1198 | methods nil))) | |
| 1199 | result)) | |
| 1200 | ||
| 1201 | (defun mm-attachment-override-p (handle) | |
| 1202 | "Say whether HANDLE should have attachment behavior overridden." | |
| 1203 | (let ((types mm-attachment-override-types) | |
| 1204 | (type (mm-handle-media-type handle)) | |
| 1205 | ty) | |
| 1206 | (catch 'found | |
| 1207 | (while (setq ty (pop types)) | |
| 1208 | (when (and (string-match ty type) | |
| 1209 | (mm-inlinable-p handle)) | |
| 1210 | (throw 'found t)))))) | |
| 1211 | ||
| 1212 | (defun mm-inline-override-p (handle) | |
| 1213 | "Say whether HANDLE should have inline behavior overridden." | |
| 1214 | (let ((types mm-inline-override-types) | |
| 1215 | (type (mm-handle-media-type handle)) | |
| 1216 | ty) | |
| 1217 | (catch 'found | |
| 1218 | (while (setq ty (pop types)) | |
| 1219 | (when (string-match ty type) | |
| 1220 | (throw 'found t)))))) | |
| 1221 | ||
| 1222 | (defun mm-automatic-external-display-p (type) | |
| 1223 | "Return the user-defined method for TYPE." | |
| 1224 | (let ((methods mm-automatic-external-display) | |
| 1225 | method result) | |
| 1226 | (while (setq method (pop methods)) | |
| 1227 | (when (string-match method type) | |
| 1228 | (setq result t | |
| 1229 | methods nil))) | |
| 1230 | result)) | |
| 1231 | ||
| 1232 | (defun mm-destroy-part (handle) | |
| 1233 | "Destroy the data structures connected to HANDLE." | |
| 1234 | (when (listp handle) | |
| 1235 | (mm-remove-part handle) | |
| 1236 | (when (buffer-live-p (mm-handle-buffer handle)) | |
| 1237 | (kill-buffer (mm-handle-buffer handle))))) | |
| 1238 | ||
| 1239 | (defun mm-handle-displayed-p (handle) | |
| 1240 | "Say whether HANDLE is displayed or not." | |
| 1241 | (mm-handle-undisplayer handle)) | |
| 1242 | ||
| 1243 | ;;; | |
| 1244 | ;;; Functions for outputting parts | |
| 1245 | ;;; | |
| 1246 | ||
| 531bedc3 MB |
1247 | (defmacro mm-with-part (handle &rest forms) |
| 1248 | "Run FORMS in the temp buffer containing the contents of HANDLE." | |
| d4eb2b7e SM |
1249 | ;; The handle-buffer's content is a sequence of bytes, not a sequence of |
| 1250 | ;; chars, so the buffer should be unibyte. It may happen that the | |
| 1251 | ;; handle-buffer is multibyte for some reason, in which case now is a good | |
| 1252 | ;; time to adjust it, since we know at this point that it should | |
| 1253 | ;; be unibyte. | |
| 1254 | `(let* ((handle ,handle)) | |
| 8ccbef23 G |
1255 | (when (and (mm-handle-buffer handle) |
| 1256 | (buffer-name (mm-handle-buffer handle))) | |
| 1257 | (with-temp-buffer | |
| 1258 | (mm-disable-multibyte) | |
| 1259 | (insert-buffer-substring (mm-handle-buffer handle)) | |
| 1260 | (mm-decode-content-transfer-encoding | |
| 1261 | (mm-handle-encoding handle) | |
| 1262 | (mm-handle-media-type handle)) | |
| 1263 | ,@forms)))) | |
| 531bedc3 MB |
1264 | (put 'mm-with-part 'lisp-indent-function 1) |
| 1265 | (put 'mm-with-part 'edebug-form-spec '(body)) | |
| 1266 | ||
| 77218834 MB |
1267 | (defun mm-get-part (handle &optional no-cache) |
| 1268 | "Return the contents of HANDLE as a string. | |
| 1269 | If NO-CACHE is non-nil, cached contents of a message/external-body part | |
| 1270 | are ignored." | |
| 1271 | (if (and (not no-cache) | |
| 1272 | (equal (mm-handle-media-type handle) "message/external-body")) | |
| 531bedc3 MB |
1273 | (progn |
| 1274 | (unless (mm-handle-cache handle) | |
| 1275 | (mm-extern-cache-contents handle)) | |
| 1276 | (with-current-buffer (mm-handle-buffer (mm-handle-cache handle)) | |
| 1277 | (buffer-string))) | |
| 1278 | (mm-with-part handle | |
| 719120ef | 1279 | (buffer-string)))) |
| c113de23 | 1280 | |
| 77218834 MB |
1281 | (defun mm-insert-part (handle &optional no-cache) |
| 1282 | "Insert the contents of HANDLE in the current buffer. | |
| 1283 | If NO-CACHE is non-nil, cached contents of a message/external-body part | |
| 1284 | are ignored." | |
| 01c52d31 MB |
1285 | (let ((text (cond ((eq (mail-content-type-get (mm-handle-type handle) |
| 1286 | 'charset) | |
| 1287 | 'gnus-decoded) | |
| 1288 | (with-current-buffer (mm-handle-buffer handle) | |
| 1289 | (buffer-string))) | |
| 1290 | ((mm-multibyte-p) | |
| 1291 | (mm-string-to-multibyte (mm-get-part handle no-cache))) | |
| 1292 | (t | |
| 1293 | (mm-get-part handle no-cache))))) | |
| 1294 | (save-restriction | |
| 1295 | (widen) | |
| 1296 | (goto-char | |
| 1297 | (prog1 | |
| 1298 | (point) | |
| 1299 | (if (and (eq (get-char-property (max (point-min) (1- (point))) 'face) | |
| 1300 | 'mm-uu-extract) | |
| 1301 | (eq (get-char-property 0 'face text) 'mm-uu-extract)) | |
| 1302 | ;; Separate the extracted parts that have the same faces. | |
| 1303 | (insert "\n" text) | |
| 1304 | (insert text))))))) | |
| 23f87bed MB |
1305 | |
| 1306 | (defun mm-file-name-delete-whitespace (file-name) | |
| 1307 | "Remove all whitespace characters from FILE-NAME." | |
| 1308 | (while (string-match "\\s-+" file-name) | |
| 1309 | (setq file-name (replace-match "" t t file-name))) | |
| 1310 | file-name) | |
| 1311 | ||
| 1312 | (defun mm-file-name-trim-whitespace (file-name) | |
| 1313 | "Remove leading and trailing whitespace characters from FILE-NAME." | |
| 1314 | (when (string-match "\\`\\s-+" file-name) | |
| 1315 | (setq file-name (substring file-name (match-end 0)))) | |
| 1316 | (when (string-match "\\s-+\\'" file-name) | |
| 1317 | (setq file-name (substring file-name 0 (match-beginning 0)))) | |
| 1318 | file-name) | |
| 1319 | ||
| 1320 | (defun mm-file-name-collapse-whitespace (file-name) | |
| 1321 | "Collapse multiple whitespace characters in FILE-NAME." | |
| 1322 | (while (string-match "\\s-\\s-+" file-name) | |
| 1323 | (setq file-name (replace-match " " t t file-name))) | |
| 1324 | file-name) | |
| 1325 | ||
| 1326 | (defun mm-file-name-replace-whitespace (file-name) | |
| 1327 | "Replace whitespace characters in FILE-NAME with underscores. | |
| 1328 | Set the option `mm-file-name-replace-whitespace' to any other | |
| 1329 | string if you do not like underscores." | |
| 1330 | (let ((s (or mm-file-name-replace-whitespace "_"))) | |
| 1331 | (while (string-match "\\s-" file-name) | |
| 1332 | (setq file-name (replace-match s t t file-name)))) | |
| 1333 | file-name) | |
| 1334 | ||
| 1335 | (defun mm-file-name-delete-control (filename) | |
| 1336 | "Delete control characters from FILENAME." | |
| 1337 | (gnus-replace-in-string filename "[\x00-\x1f\x7f]" "")) | |
| 1338 | ||
| 1339 | (defun mm-file-name-delete-gotchas (filename) | |
| 1340 | "Delete shell gotchas from FILENAME." | |
| 1341 | (setq filename (gnus-replace-in-string filename "[<>|]" "")) | |
| 1342 | (gnus-replace-in-string filename "^[.-]+" "")) | |
| c113de23 | 1343 | |
| 01c52d31 MB |
1344 | (defun mm-save-part (handle &optional prompt) |
| 1345 | "Write HANDLE to a file. | |
| 1346 | PROMPT overrides the default one used to ask user for a file name." | |
| 531bedc3 MB |
1347 | (let ((filename (or (mail-content-type-get |
| 1348 | (mm-handle-disposition handle) 'filename) | |
| 1349 | (mail-content-type-get | |
| 1350 | (mm-handle-type handle) 'name))) | |
| 1351 | file) | |
| c113de23 | 1352 | (when filename |
| 23f87bed MB |
1353 | (setq filename (gnus-map-function mm-file-name-rewrite-functions |
| 1354 | (file-name-nondirectory filename)))) | |
| dc39b96a CS |
1355 | (while |
| 1356 | (progn | |
| 1357 | (setq file | |
| 1358 | (read-file-name | |
| 1359 | (or prompt | |
| 1360 | (format "Save MIME part to (default %s): " | |
| 1361 | (or filename ""))) | |
| 1362 | (or mm-default-directory default-directory) | |
| 1363 | (expand-file-name (or filename "") | |
| 1364 | (or mm-default-directory default-directory)))) | |
| 1365 | (cond ((or (not file) (equal file "")) | |
| 1366 | (message "Please enter a file name") | |
| 1367 | t) | |
| 1368 | ((and (file-directory-p file) | |
| 1369 | (not filename)) | |
| 1370 | (message "Please enter a non-directory file name") | |
| 1371 | t) | |
| 1372 | (t nil))) | |
| 1373 | (sit-for 2) | |
| 1374 | (discard-input)) | |
| 3d319c8f LMI |
1375 | (if (file-directory-p file) |
| 1376 | (setq file (expand-file-name filename file)) | |
| 1377 | (setq file (expand-file-name | |
| 1378 | file (or mm-default-directory default-directory)))) | |
| c113de23 | 1379 | (setq mm-default-directory (file-name-directory file)) |
| 23f87bed MB |
1380 | (and (or (not (file-exists-p file)) |
| 1381 | (yes-or-no-p (format "File %s already exists; overwrite? " | |
| 1382 | file))) | |
| 1383 | (progn | |
| 1384 | (mm-save-part-to-file handle file) | |
| 1385 | file)))) | |
| c113de23 | 1386 | |
| 82fc7980 | 1387 | (defun mm-add-meta-html-tag (handle &optional charset force-charset) |
| bbbe940b MB |
1388 | "Add meta html tag to specify CHARSET of HANDLE in the current buffer. |
| 1389 | CHARSET defaults to the one HANDLE specifies. Existing meta tag that | |
| 82fc7980 KY |
1390 | specifies charset will not be modified unless FORCE-CHARSET is non-nil. |
| 1391 | Return t if meta tag is added or replaced." | |
| bbbe940b MB |
1392 | (when (equal (mm-handle-media-type handle) "text/html") |
| 1393 | (when (or charset | |
| 1394 | (setq charset (mail-content-type-get (mm-handle-type handle) | |
| 1395 | 'charset))) | |
| 1396 | (setq charset (format "\ | |
| 1397 | <meta http-equiv=\"Content-Type\" content=\"text/html; charset=%s\">" charset)) | |
| 1398 | (let ((case-fold-search t)) | |
| 1399 | (goto-char (point-min)) | |
| 1400 | (if (re-search-forward "\ | |
| 1401 | <meta\\s-+http-equiv=[\"']?content-type[\"']?\\s-+content=[\"']\ | |
| 711668ac | 1402 | text/\\(\\sw+\\)\\(?:\;\\s-*charset=\\([^\"'>]+\\)\\)?[^>]*>" nil t) |
| 82fc7980 KY |
1403 | (if (and (not force-charset) |
| 1404 | (match-beginning 2) | |
| bbbe940b MB |
1405 | (string-match "\\`html\\'" (match-string 1))) |
| 1406 | ;; Don't modify existing meta tag. | |
| 1407 | nil | |
| 1408 | ;; Replace it with the one specifying charset. | |
| 1409 | (replace-match charset) | |
| 1410 | t) | |
| 1411 | (if (re-search-forward "<head>\\s-*" nil t) | |
| 1412 | (insert charset "\n") | |
| 1413 | (re-search-forward "<html\\(?:\\s-+[^>]+\\|\\s-*\\)>\\s-*" nil t) | |
| 1414 | (insert "<head>\n" charset "\n</head>\n")) | |
| 1415 | t))))) | |
| 1416 | ||
| c113de23 GM |
1417 | (defun mm-save-part-to-file (handle file) |
| 1418 | (mm-with-unibyte-buffer | |
| 1419 | (mm-insert-part handle) | |
| bbbe940b | 1420 | (mm-add-meta-html-tag handle) |
| 01c52d31 MB |
1421 | (let ((current-file-modes (default-file-modes))) |
| 1422 | (set-default-file-modes mm-attachment-file-modes) | |
| 1423 | (unwind-protect | |
| c113de23 GM |
1424 | ;; Don't re-compress .gz & al. Arguably we should make |
| 1425 | ;; `file-name-handler-alist' nil, but that would chop | |
| 1426 | ;; ange-ftp, which is reasonable to use here. | |
| 01c52d31 | 1427 | (mm-write-region (point-min) (point-max) file nil nil nil 'binary t) |
| 23f87bed | 1428 | (set-default-file-modes current-file-modes))))) |
| c113de23 | 1429 | |
| 9581ba4d KY |
1430 | (defun mm-pipe-part (handle &optional cmd) |
| 1431 | "Pipe HANDLE to a process. | |
| 1432 | Use CMD as the process." | |
| 1433 | (let ((name (mail-content-type-get (mm-handle-type handle) 'name)) | |
| 1434 | (command (or cmd | |
| 1435 | (gnus-read-shell-command | |
| 1436 | "Shell command on MIME part: " mm-last-shell-command)))) | |
| c113de23 GM |
1437 | (mm-with-unibyte-buffer |
| 1438 | (mm-insert-part handle) | |
| bbbe940b | 1439 | (mm-add-meta-html-tag handle) |
| 23f87bed MB |
1440 | (let ((coding-system-for-write 'binary)) |
| 1441 | (shell-command-on-region (point-min) (point-max) command nil))))) | |
| c113de23 | 1442 | |
| e116c1eb GM |
1443 | (autoload 'gnus-completing-read "gnus-util") |
| 1444 | ||
| c113de23 GM |
1445 | (defun mm-interactively-view-part (handle) |
| 1446 | "Display HANDLE using METHOD." | |
| 1447 | (let* ((type (mm-handle-media-type handle)) | |
| 1448 | (methods | |
| 229b59da | 1449 | (mapcar (lambda (i) (cdr (assoc 'viewer i))) |
| c113de23 | 1450 | (mailcap-mime-info type 'all))) |
| 62a27ccf DL |
1451 | (method (let ((minibuffer-local-completion-map |
| 1452 | mm-viewer-completion-map)) | |
| 0dc42289 | 1453 | (completing-read "Viewer: " methods)))) |
| c113de23 GM |
1454 | (when (string= method "") |
| 1455 | (error "No method given")) | |
| 5bb548d2 | 1456 | (if (string-match "^[^% \t]+$" method) |
| c113de23 | 1457 | (setq method (concat method " %s"))) |
| 619ac84f | 1458 | (mm-display-external handle method))) |
| c113de23 GM |
1459 | |
| 1460 | (defun mm-preferred-alternative (handles &optional preferred) | |
| 1461 | "Say which of HANDLES are preferred." | |
| 1462 | (let ((prec (if preferred (list preferred) | |
| 1463 | (mm-preferred-alternative-precedence handles))) | |
| 1464 | p h result type handle) | |
| 1465 | (while (setq p (pop prec)) | |
| 1466 | (setq h handles) | |
| 1467 | (while h | |
| 1468 | (setq handle (car h)) | |
| 1469 | (setq type (mm-handle-media-type handle)) | |
| 1470 | (when (and (equal p type) | |
| 1471 | (mm-automatic-display-p handle) | |
| 1472 | (or (stringp (car handle)) | |
| 1473 | (not (mm-handle-disposition handle)) | |
| 1474 | (equal (car (mm-handle-disposition handle)) | |
| 1475 | "inline"))) | |
| 1476 | (setq result handle | |
| 1477 | h nil | |
| 1478 | prec nil)) | |
| 1479 | (pop h))) | |
| 1480 | result)) | |
| 1481 | ||
| 1482 | (defun mm-preferred-alternative-precedence (handles) | |
| 1483 | "Return the precedence based on HANDLES and `mm-discouraged-alternatives'." | |
| c516cd6d LMI |
1484 | (setq handles (reverse handles)) |
| 1485 | (dolist (disc (reverse mm-discouraged-alternatives)) | |
| 1486 | (dolist (handle (copy-sequence handles)) | |
| 1487 | (when (string-match disc (mm-handle-media-type handle)) | |
| 1488 | (setq handles (nconc (delete handle handles) (list handle)))))) | |
| 1489 | ;; Remove empty parts. | |
| 1490 | (dolist (handle (copy-sequence handles)) | |
| acf151a8 LI |
1491 | (when (and (bufferp (mm-handle-buffer handle)) |
| 1492 | (not (with-current-buffer (mm-handle-buffer handle) | |
| 1493 | (goto-char (point-min)) | |
| 1494 | (re-search-forward "[^ \t\n]" nil t)))) | |
| c516cd6d LMI |
1495 | (setq handles (nconc (delete handle handles) (list handle))))) |
| 1496 | (mapcar #'mm-handle-media-type handles)) | |
| c113de23 GM |
1497 | |
| 1498 | (defun mm-get-content-id (id) | |
| 1499 | "Return the handle(s) referred to by ID." | |
| 1500 | (cdr (assoc id mm-content-id-alist))) | |
| 1501 | ||
| 23f87bed MB |
1502 | (defconst mm-image-type-regexps |
| 1503 | '(("/\\*.*XPM.\\*/" . xpm) | |
| 1504 | ("P[1-6]" . pbm) | |
| 1505 | ("GIF8" . gif) | |
| 1506 | ("\377\330" . jpeg) | |
| 1507 | ("\211PNG\r\n" . png) | |
| 1508 | ("#define" . xbm) | |
| 1509 | ("\\(MM\0\\*\\)\\|\\(II\\*\0\\)" . tiff) | |
| 1510 | ("%!PS" . postscript)) | |
| 1511 | "Alist of (REGEXP . IMAGE-TYPE) pairs used to auto-detect image types. | |
| 1512 | When the first bytes of an image file match REGEXP, it is assumed to | |
| 1513 | be of image type IMAGE-TYPE.") | |
| 1514 | ||
| 1515 | ;; Steal from image.el. image-type-from-data suffers multi-line matching bug. | |
| 1516 | (defun mm-image-type-from-buffer () | |
| 1517 | "Determine the image type from data in the current buffer. | |
| 1518 | Value is a symbol specifying the image type or nil if type cannot | |
| 1519 | be determined." | |
| 1520 | (let ((types mm-image-type-regexps) | |
| 1521 | type) | |
| 1522 | (goto-char (point-min)) | |
| 1523 | (while (and types (null type)) | |
| 1524 | (let ((regexp (car (car types))) | |
| 1525 | (image-type (cdr (car types)))) | |
| 1526 | (when (looking-at regexp) | |
| 1527 | (setq type image-type)) | |
| 1528 | (setq types (cdr types)))) | |
| 1529 | type)) | |
| 1530 | ||
| c113de23 GM |
1531 | (defun mm-get-image (handle) |
| 1532 | "Return an image instance based on HANDLE." | |
| 1533 | (let ((type (mm-handle-media-subtype handle)) | |
| 1534 | spec) | |
| 1535 | ;; Allow some common translations. | |
| 1536 | (setq type | |
| 1537 | (cond | |
| 1538 | ((equal type "x-pixmap") | |
| 1539 | "xpm") | |
| 1540 | ((equal type "x-xbitmap") | |
| 1541 | "xbm") | |
| 5bb548d2 DL |
1542 | ((equal type "x-portable-bitmap") |
| 1543 | "pbm") | |
| c113de23 GM |
1544 | (t type))) |
| 1545 | (or (mm-handle-cache handle) | |
| 1546 | (mm-with-unibyte-buffer | |
| 1547 | (mm-insert-part handle) | |
| 1548 | (prog1 | |
| 1549 | (setq spec | |
| 1550 | (ignore-errors | |
| 23f87bed MB |
1551 | ;; Avoid testing `make-glyph' since W3 may define |
| 1552 | ;; a bogus version of it. | |
| c113de23 | 1553 | (if (fboundp 'create-image) |
| 23f87bed MB |
1554 | (create-image (buffer-string) |
| 1555 | (or (mm-image-type-from-buffer) | |
| 1556 | (intern type)) | |
| 1557 | 'data-p) | |
| 1558 | (mm-create-image-xemacs type)))) | |
| c113de23 GM |
1559 | (mm-handle-set-cache handle spec)))))) |
| 1560 | ||
| 23f87bed | 1561 | (defun mm-create-image-xemacs (type) |
| 9efa445f DN |
1562 | (when (featurep 'xemacs) |
| 1563 | (cond | |
| 1564 | ((equal type "xbm") | |
| 1565 | ;; xbm images require special handling, since | |
| 1566 | ;; the only way to create glyphs from these | |
| 1567 | ;; (without a ton of work) is to write them | |
| 1568 | ;; out to a file, and then create a file | |
| 1569 | ;; specifier. | |
| 1570 | (let ((file (mm-make-temp-file | |
| 1571 | (expand-file-name "emm" mm-tmp-directory) | |
| 1572 | nil ".xbm"))) | |
| 1573 | (unwind-protect | |
| 1574 | (progn | |
| 1575 | (write-region (point-min) (point-max) file) | |
| 1576 | (make-glyph (list (cons 'x file)))) | |
| 1577 | (ignore-errors | |
| 1578 | (delete-file file))))) | |
| 1579 | (t | |
| 1580 | (make-glyph | |
| 1581 | (vector | |
| 1582 | (or (mm-image-type-from-buffer) | |
| 1583 | (intern type)) | |
| 1584 | :data (buffer-string))))))) | |
| 23f87bed | 1585 | |
| 12c9fab6 GM |
1586 | (declare-function image-size "image.c" (spec &optional pixels frame)) |
| 1587 | ||
| c113de23 GM |
1588 | (defun mm-image-fit-p (handle) |
| 1589 | "Say whether the image in HANDLE will fit the current window." | |
| 1590 | (let ((image (mm-get-image handle))) | |
| 524705ae | 1591 | (or (not image) |
| 9efa445f | 1592 | (if (featurep 'xemacs) |
| 44e97401 | 1593 | ;; XEmacs's glyphs can actually tell us about their width, so |
| c7015153 | 1594 | ;; let's be nice and smart about them. |
| 524705ae MB |
1595 | (or mm-inline-large-images |
| 1596 | (and (<= (glyph-width image) (window-pixel-width)) | |
| 1597 | (<= (glyph-height image) (window-pixel-height)))) | |
| 1598 | (let* ((size (image-size image)) | |
| 1599 | (w (car size)) | |
| 1600 | (h (cdr size))) | |
| 1601 | (or mm-inline-large-images | |
| 1602 | (and (<= h (1- (window-height))) ; Don't include mode line. | |
| 1603 | (<= w (window-width))))))))) | |
| c113de23 GM |
1604 | |
| 1605 | (defun mm-valid-image-format-p (format) | |
| 1606 | "Say whether FORMAT can be displayed natively by Emacs." | |
| 1607 | (cond | |
| 1608 | ;; Handle XEmacs | |
| 1609 | ((fboundp 'valid-image-instantiator-format-p) | |
| 1610 | (valid-image-instantiator-format-p format)) | |
| 5b5dafd2 | 1611 | ;; Handle Emacs |
| c113de23 GM |
1612 | ((fboundp 'image-type-available-p) |
| 1613 | (and (display-graphic-p) | |
| 1614 | (image-type-available-p format))) | |
| 1615 | ;; Nobody else can do images yet. | |
| 1616 | (t | |
| 1617 | nil))) | |
| 1618 | ||
| 1619 | (defun mm-valid-and-fit-image-p (format handle) | |
| 1620 | "Say whether FORMAT can be displayed natively and HANDLE fits the window." | |
| 62a27ccf | 1621 | (and (mm-valid-image-format-p format) |
| c113de23 GM |
1622 | (mm-image-fit-p handle))) |
| 1623 | ||
| 23f87bed MB |
1624 | (defun mm-find-part-by-type (handles type &optional notp recursive) |
| 1625 | "Search in HANDLES for part with TYPE. | |
| 1626 | If NOTP, returns first non-matching part. | |
| 1627 | If RECURSIVE, search recursively." | |
| 1628 | (let (handle) | |
| 1629 | (while handles | |
| 1630 | (if (and recursive (stringp (caar handles))) | |
| 1631 | (if (setq handle (mm-find-part-by-type (cdar handles) type | |
| 1632 | notp recursive)) | |
| 1633 | (setq handles nil)) | |
| 1634 | (if (if notp | |
| 1635 | (not (equal (mm-handle-media-type (car handles)) type)) | |
| 1636 | (equal (mm-handle-media-type (car handles)) type)) | |
| 1637 | (setq handle (car handles) | |
| 1638 | handles nil))) | |
| 1639 | (setq handles (cdr handles))) | |
| 1640 | handle)) | |
| 1641 | ||
| 1642 | (defun mm-find-raw-part-by-type (ctl type &optional notp) | |
| 1643 | (goto-char (point-min)) | |
| 1644 | (let* ((boundary (concat "--" (mm-handle-multipart-ctl-parameter ctl | |
| 1645 | 'boundary))) | |
| 1646 | (close-delimiter (concat "^" (regexp-quote boundary) "--[ \t]*$")) | |
| 1647 | start | |
| 1648 | (end (save-excursion | |
| 1649 | (goto-char (point-max)) | |
| 1650 | (if (re-search-backward close-delimiter nil t) | |
| 1651 | (match-beginning 0) | |
| 1652 | (point-max)))) | |
| 1653 | result) | |
| 1654 | (setq boundary (concat "^" (regexp-quote boundary) "[ \t]*$")) | |
| 1655 | (while (and (not result) | |
| 1656 | (re-search-forward boundary end t)) | |
| 1657 | (goto-char (match-beginning 0)) | |
| 1658 | (when start | |
| 1659 | (save-excursion | |
| 1660 | (save-restriction | |
| 1661 | (narrow-to-region start (1- (point))) | |
| c96ec15a MB |
1662 | (when (let* ((ct (mail-fetch-field "content-type")) |
| 1663 | (ctl (and ct (mail-header-parse-content-type ct)))) | |
| 23f87bed MB |
1664 | (if notp |
| 1665 | (not (equal (car ctl) type)) | |
| 1666 | (equal (car ctl) type))) | |
| 1667 | (setq result (buffer-string)))))) | |
| 1668 | (forward-line 1) | |
| 1669 | (setq start (point))) | |
| 1670 | (when (and (not result) start) | |
| 1671 | (save-excursion | |
| 1672 | (save-restriction | |
| 1673 | (narrow-to-region start end) | |
| c96ec15a MB |
1674 | (when (let* ((ct (mail-fetch-field "content-type")) |
| 1675 | (ctl (and ct (mail-header-parse-content-type ct)))) | |
| 23f87bed MB |
1676 | (if notp |
| 1677 | (not (equal (car ctl) type)) | |
| 1678 | (equal (car ctl) type))) | |
| 1679 | (setq result (buffer-string)))))) | |
| 1680 | result)) | |
| 1681 | ||
| 1682 | (defvar mm-security-handle nil) | |
| 1683 | ||
| 1684 | (defsubst mm-set-handle-multipart-parameter (handle parameter value) | |
| 1685 | ;; HANDLE could be a CTL. | |
| 1686 | (when handle | |
| 1687 | (put-text-property 0 (length (car handle)) parameter value | |
| 1688 | (car handle)))) | |
| 1689 | ||
| 60ef4154 GM |
1690 | (autoload 'mm-view-pkcs7 "mm-view") |
| 1691 | ||
| b0feab7d | 1692 | (defun mm-possibly-verify-or-decrypt (parts ctl &optional from) |
| 23f87bed MB |
1693 | (let ((type (car ctl)) |
| 1694 | (subtype (cadr (split-string (car ctl) "/"))) | |
| 1695 | (mm-security-handle ctl) ;; (car CTL) is the type. | |
| 1696 | protocol func functest) | |
| 1697 | (cond | |
| 1698 | ((or (equal type "application/x-pkcs7-mime") | |
| 1699 | (equal type "application/pkcs7-mime")) | |
| 1700 | (with-temp-buffer | |
| 1701 | (when (and (cond | |
| 1702 | ((eq mm-decrypt-option 'never) nil) | |
| 1703 | ((eq mm-decrypt-option 'always) t) | |
| 1704 | ((eq mm-decrypt-option 'known) t) | |
| 1705 | (t (y-or-n-p | |
| 1706 | (format "Decrypt (S/MIME) part? ")))) | |
| b0feab7d | 1707 | (mm-view-pkcs7 parts from)) |
| 23f87bed MB |
1708 | (setq parts (mm-dissect-buffer t))))) |
| 1709 | ((equal subtype "signed") | |
| 1710 | (unless (and (setq protocol | |
| 1711 | (mm-handle-multipart-ctl-parameter ctl 'protocol)) | |
| 1712 | (not (equal protocol "multipart/mixed"))) | |
| 1713 | ;; The message is broken or draft-ietf-openpgp-multsig-01. | |
| 1714 | (let ((protocols mm-verify-function-alist)) | |
| 1715 | (while protocols | |
| 1716 | (if (and (or (not (setq functest (nth 3 (car protocols)))) | |
| 1717 | (funcall functest parts ctl)) | |
| 1718 | (mm-find-part-by-type parts (caar protocols) nil t)) | |
| 1719 | (setq protocol (caar protocols) | |
| 1720 | protocols nil) | |
| 1721 | (setq protocols (cdr protocols)))))) | |
| 1722 | (setq func (nth 1 (assoc protocol mm-verify-function-alist))) | |
| 1723 | (when (cond | |
| 1724 | ((eq mm-verify-option 'never) nil) | |
| 1725 | ((eq mm-verify-option 'always) t) | |
| 1726 | ((eq mm-verify-option 'known) | |
| 1727 | (and func | |
| 1728 | (or (not (setq functest | |
| 1729 | (nth 3 (assoc protocol | |
| 1730 | mm-verify-function-alist)))) | |
| 1731 | (funcall functest parts ctl)))) | |
| 1732 | (t | |
| 1733 | (y-or-n-p | |
| 1734 | (format "Verify signed (%s) part? " | |
| 1735 | (or (nth 2 (assoc protocol mm-verify-function-alist)) | |
| 1736 | (format "protocol=%s" protocol)))))) | |
| 1737 | (save-excursion | |
| 1738 | (if func | |
| 01c52d31 | 1739 | (setq parts (funcall func parts ctl)) |
| 23f87bed MB |
1740 | (mm-set-handle-multipart-parameter |
| 1741 | mm-security-handle 'gnus-details | |
| 1742 | (format "Unknown sign protocol (%s)" protocol)))))) | |
| 1743 | ((equal subtype "encrypted") | |
| 1744 | (unless (setq protocol | |
| 1745 | (mm-handle-multipart-ctl-parameter ctl 'protocol)) | |
| 1746 | ;; The message is broken. | |
| 1747 | (let ((parts parts)) | |
| 1748 | (while parts | |
| 1749 | (if (assoc (mm-handle-media-type (car parts)) | |
| 1750 | mm-decrypt-function-alist) | |
| 1751 | (setq protocol (mm-handle-media-type (car parts)) | |
| 1752 | parts nil) | |
| 1753 | (setq parts (cdr parts)))))) | |
| 1754 | (setq func (nth 1 (assoc protocol mm-decrypt-function-alist))) | |
| 1755 | (when (cond | |
| 1756 | ((eq mm-decrypt-option 'never) nil) | |
| 1757 | ((eq mm-decrypt-option 'always) t) | |
| 1758 | ((eq mm-decrypt-option 'known) | |
| 1759 | (and func | |
| 1760 | (or (not (setq functest | |
| 1761 | (nth 3 (assoc protocol | |
| 1762 | mm-decrypt-function-alist)))) | |
| 1763 | (funcall functest parts ctl)))) | |
| 1764 | (t | |
| 1765 | (y-or-n-p | |
| 1766 | (format "Decrypt (%s) part? " | |
| 1767 | (or (nth 2 (assoc protocol mm-decrypt-function-alist)) | |
| 1768 | (format "protocol=%s" protocol)))))) | |
| 1769 | (save-excursion | |
| 1770 | (if func | |
| 1771 | (setq parts (funcall func parts ctl)) | |
| 1772 | (mm-set-handle-multipart-parameter | |
| 1773 | mm-security-handle 'gnus-details | |
| 1774 | (format "Unknown encrypt protocol (%s)" protocol)))))) | |
| 1775 | (t nil)) | |
| 1776 | parts)) | |
| 1777 | ||
| 1778 | (defun mm-multiple-handles (handles) | |
| 1779 | (and (listp handles) | |
| 1780 | (> (length handles) 1) | |
| 1781 | (or (listp (car handles)) | |
| 1782 | (stringp (car handles))))) | |
| 1783 | ||
| 1784 | (defun mm-complicated-handles (handles) | |
| 1785 | (and (listp (car handles)) | |
| 1786 | (> (length handles) 1))) | |
| 1787 | ||
| 1788 | (defun mm-merge-handles (handles1 handles2) | |
| 1789 | (append | |
| 1790 | (if (listp (car handles1)) | |
| 1791 | handles1 | |
| 1792 | (list handles1)) | |
| 1793 | (if (listp (car handles2)) | |
| 1794 | handles2 | |
| 1795 | (list handles2)))) | |
| 1796 | ||
| 1797 | (defun mm-readable-p (handle) | |
| 1798 | "Say whether the content of HANDLE is readable." | |
| 1799 | (and (< (with-current-buffer (mm-handle-buffer handle) | |
| 1800 | (buffer-size)) 10000) | |
| 1801 | (mm-with-unibyte-buffer | |
| 1802 | (mm-insert-part handle) | |
| 1803 | (and (eq (mm-body-7-or-8) '7bit) | |
| 1804 | (not (mm-long-lines-p 76)))))) | |
| 1805 | ||
| cfadea45 KY |
1806 | (declare-function libxml-parse-html-region "xml.c" |
| 1807 | (start end &optional base-url)) | |
| 1808 | (declare-function shr-insert-document "shr" (dom)) | |
| 63698bec | 1809 | (defvar shr-blocked-images) |
| 40de2c6d | 1810 | (defvar gnus-inhibit-images) |
| e116c1eb | 1811 | (autoload 'gnus-blocked-images "gnus-art") |
| cfadea45 | 1812 | |
| 870409d4 | 1813 | (defun mm-shr (handle) |
| 130e977f LMI |
1814 | ;; Require since we bind its variables. |
| 1815 | (require 'shr) | |
| cfadea45 | 1816 | (let ((article-buffer (current-buffer)) |
| 130e977f LMI |
1817 | (shr-content-function (lambda (id) |
| 1818 | (let ((handle (mm-get-content-id id))) | |
| 1819 | (when handle | |
| 1820 | (mm-with-part handle | |
| 1821 | (buffer-string)))))) | |
| c912b478 | 1822 | shr-inhibit-images shr-blocked-images charset char) |
| b59a9eef | 1823 | (if (and (boundp 'gnus-summary-buffer) |
| 9937bef4 | 1824 | (bufferp gnus-summary-buffer) |
| b59a9eef KY |
1825 | (buffer-name gnus-summary-buffer)) |
| 1826 | (with-current-buffer gnus-summary-buffer | |
| 1827 | (setq shr-inhibit-images gnus-inhibit-images | |
| 1828 | shr-blocked-images (gnus-blocked-images))) | |
| 1829 | (setq shr-inhibit-images gnus-inhibit-images | |
| 1830 | shr-blocked-images (gnus-blocked-images))) | |
| 870409d4 G |
1831 | (unless handle |
| 1832 | (setq handle (mm-dissect-buffer t))) | |
| cfadea45 | 1833 | (setq charset (mail-content-type-get (mm-handle-type handle) 'charset)) |
| a41c2e6d G |
1834 | (save-restriction |
| 1835 | (narrow-to-region (point) (point)) | |
| 1836 | (shr-insert-document | |
| 1837 | (mm-with-part handle | |
| c912b478 KY |
1838 | (insert (prog1 |
| 1839 | (if (and charset | |
| 1840 | (setq charset | |
| b50e5112 KY |
1841 | (mm-charset-to-coding-system charset |
| 1842 | nil t)) | |
| c912b478 KY |
1843 | (not (eq charset 'ascii))) |
| 1844 | (mm-decode-coding-string (buffer-string) charset) | |
| 1845 | (mm-string-as-multibyte (buffer-string))) | |
| 1846 | (erase-buffer) | |
| 1847 | (mm-enable-multibyte))) | |
| 1848 | (goto-char (point-min)) | |
| 1849 | (setq case-fold-search t) | |
| 1850 | (while (re-search-forward | |
| 1851 | "&#\\(?:x\\([89][0-9a-f]\\)\\|\\(1[2-5][0-9]\\)\\);" nil t) | |
| 1852 | (when (setq char | |
| 1853 | (cdr (assq (if (match-beginning 1) | |
| 1854 | (string-to-number (match-string 1) 16) | |
| 1855 | (string-to-number (match-string 2))) | |
| 1856 | mm-extra-numeric-entities))) | |
| 1857 | (replace-match (char-to-string char)))) | |
| a212a18a LI |
1858 | ;; Remove "soft hyphens". |
| 1859 | (goto-char (point-min)) | |
| c38e0c97 | 1860 | (while (search-forward "" nil t) |
| a212a18a | 1861 | (replace-match "" t t)) |
| 3444dc61 | 1862 | (libxml-parse-html-region (point-min) (point-max)))) |
| 89b163db G |
1863 | (unless (bobp) |
| 1864 | (insert "\n")) | |
| 7304e4dd | 1865 | (mm-convert-shr-links) |
| 3444dc61 KY |
1866 | (mm-handle-set-undisplayer |
| 1867 | handle | |
| 1868 | `(lambda () | |
| 1869 | (let ((inhibit-read-only t)) | |
| 14ff920d | 1870 | (delete-region ,(copy-marker (point-min) t) |
| 0d46b5f1 | 1871 | ,(point-max-marker)))))))) |
| 870409d4 | 1872 | |
| c220cb68 KY |
1873 | (defvar shr-map) |
| 1874 | ||
| 97989677 GM |
1875 | (autoload 'widget-convert-button "wid-edit") |
| 1876 | ||
| 7304e4dd LMI |
1877 | (defun mm-convert-shr-links () |
| 1878 | (let ((start (point-min)) | |
| 1879 | end) | |
| 1880 | (while (and start | |
| 1881 | (< start (point-max))) | |
| 1882 | (when (setq start (text-property-not-all start (point-max) 'shr-url nil)) | |
| 1883 | (setq end (next-single-property-change start 'shr-url nil (point-max))) | |
| 1884 | (widget-convert-button | |
| 1885 | 'url-link start end | |
| 1886 | :help-echo (get-text-property start 'help-echo) | |
| 1887 | :keymap shr-map | |
| 1888 | (get-text-property start 'shr-url)) | |
| 544d4594 | 1889 | (put-text-property start end 'local-map nil) |
| 7304e4dd LMI |
1890 | (setq start end))))) |
| 1891 | ||
| dc802687 TZ |
1892 | (defun mm-handle-filename (handle) |
| 1893 | "Return filename of HANDLE if any." | |
| 1894 | (or (mail-content-type-get (mm-handle-type handle) | |
| 1895 | 'name) | |
| 1896 | (mail-content-type-get (mm-handle-disposition handle) | |
| 1897 | 'filename))) | |
| 1898 | ||
| c113de23 GM |
1899 | (provide 'mm-decode) |
| 1900 | ||
| 89b163db | 1901 | ;; Local Variables: |
| c38e0c97 | 1902 | ;; coding: utf-8 |
| 89b163db G |
1903 | ;; End: |
| 1904 | ||
| c113de23 | 1905 | ;;; mm-decode.el ends here |