1 ;;; mime-play.el --- Playback processing module for mime-view.el
3 ;; Copyright (C) 1994,95,96,97,98,99,2000 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <tomo@m17n.org>
6 ;; Created: 1995/9/26 (separated from tm-view.el)
7 ;; Renamed: 1997/2/21 from tm-play.el
8 ;; Keywords: MIME, multimedia, mail, news
10 ;; This file is part of SEMI (Secretariat of Emacs MIME Interfaces).
12 ;; This program is free software; you can redistribute it and/or
13 ;; modify it under the terms of the GNU General Public License as
14 ;; published by the Free Software Foundation; either version 2, or (at
15 ;; your option) any later version.
17 ;; This program is distributed in the hope that it will be useful, but
18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 ;; 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.
36 (error (defvar bbdb-buffer-name nil)))
39 (defcustom mime-save-directory "~/"
40 "*Name of the directory where MIME entity will be saved in.
41 If t, it means current directory."
43 :type '(choice (const :tag "Current directory" t)
46 (defvar mime-play-find-every-situations t
47 "*Find every available situations if non-nil.")
54 (defun mime-preview-play-current-entity (&optional ignore-examples mode)
56 It decodes current entity to call internal or external method. The
57 method is selected from variable `mime-acting-condition'.
58 If IGNORE-EXAMPLES (C-u prefix) is specified, this function ignores
59 `mime-acting-situation-example-list'.
60 If MODE is specified, play as it. Default MODE is \"play\"."
62 (let ((entity (get-text-property (point) 'mime-view-entity)))
65 (get-text-property (point) 'mime-view-situation)))
69 (if (assq 'mode situation)
70 (put-alist 'mode mode (copy-alist situation))
71 (cons (cons 'mode mode)
75 (cons (cons 'ignore-examples ignore-examples)
77 (mime-play-entity entity situation)
81 (defun mime-play-entity (entity &optional situation ignored-method)
82 "Play entity specified by ENTITY.
83 It decodes the entity to call internal or external method. The method
84 is selected from variable `mime-acting-condition'. If MODE is
85 specified, play as it. Default MODE is \"play\"."
87 (mime-unify-situations (mime-entity-situation entity situation)
89 mime-acting-situation-example-list
90 'method ignored-method
91 mime-play-find-every-situations))
93 (setq mime-acting-situation-example-list (cdr ret)
96 (setq ret (select-menu-alist
102 (cdr (assq 'method situation)))
105 (setq ret (mime-sort-situation ret))
106 (add-to-list 'mime-acting-situation-example-list (cons ret 0))
111 (setq method (cdr (assq 'method ret)))
112 (cond ((and (symbolp method)
114 (funcall method entity ret)
117 (mime-activate-mailcap-method entity ret)
119 ;; ((and (listp method)(stringp (car method)))
120 ;; (mime-activate-external-method entity ret)
123 (mime-show-echo-buffer "No method are specified for %s\n"
124 (mime-type/subtype-string
125 (cdr (assq 'type situation))
126 (cdr (assq 'subtype situation))))
127 (if (y-or-n-p "Do you want to save current entity to disk?")
128 (mime-save-content entity situation))
133 ;;; @ external decoder
136 (defvar mime-mailcap-method-filename-alist nil)
138 (defun mime-activate-mailcap-method (entity situation)
139 (let ((method (cdr (assoc 'method situation)))
140 (name (mime-entity-safe-filename entity)))
142 (if (and name (not (string= name "")))
143 (expand-file-name name temporary-file-directory)
145 (expand-file-name "EMI" temporary-file-directory))
147 (mime-write-entity-content entity name)
148 (message "External method is starting...")
151 (mailcap-format-command
153 (cons (cons 'filename name) situation))))
154 (start-process command mime-echo-buffer-name
155 shell-file-name shell-command-switch command)
157 (set-alist 'mime-mailcap-method-filename-alist process name)
158 (set-process-sentinel process 'mime-mailcap-method-sentinel)
162 (defun mime-mailcap-method-sentinel (process event)
163 (let ((file (cdr (assq process mime-mailcap-method-filename-alist))))
164 (if (file-exists-p file)
167 (remove-alist 'mime-mailcap-method-filename-alist process)
168 (message (format "%s %s" process event)))
170 (defvar mime-echo-window-is-shared-with-bbdb
171 (module-installed-p 'bbdb)
172 "*If non-nil, mime-echo window is shared with BBDB window.")
174 (defvar mime-echo-window-height
177 (/ (window-height) 5)
179 "*Size of mime-echo window.
180 It allows function or integer. If it is function,
181 `mime-show-echo-buffer' calls it to get height of mime-echo window.
182 Otherwise `mime-show-echo-buffer' uses it as height of mime-echo
185 (defun mime-show-echo-buffer (&rest forms)
186 "Show mime-echo buffer to display MIME-playing information."
187 (get-buffer-create mime-echo-buffer-name)
188 (let ((the-win (selected-window))
189 (win (get-buffer-window mime-echo-buffer-name)))
191 (unless (and mime-echo-window-is-shared-with-bbdb
193 (setq win (get-buffer-window bbdb-buffer-name))
195 (select-window (get-buffer-window (or mime-preview-buffer
197 (setq win (split-window-vertically
199 (if (functionp mime-echo-window-height)
200 (funcall mime-echo-window-height)
201 mime-echo-window-height)
204 (set-window-buffer win mime-echo-buffer-name)
207 (goto-char (point-max))
209 (let ((buffer-read-only nil))
210 (insert (apply (function format) forms))
212 (select-window the-win)
219 (defvar mime-view-file-name-char-regexp "[A-Za-z0-9+_-]")
221 (defvar mime-view-file-name-regexp-1
222 (concat mime-view-file-name-char-regexp "+\\."
223 mime-view-file-name-char-regexp "+"))
225 (defvar mime-view-file-name-regexp-2
226 (concat (regexp-* mime-view-file-name-char-regexp)
227 "\\(\\." mime-view-file-name-char-regexp "+\\)*"))
229 (defun mime-entity-safe-filename (entity)
231 (or (mime-entity-filename entity)
233 (or (mime-entity-read-field entity 'Content-Description)
234 (mime-entity-read-field entity 'Subject))))
236 (or (string-match mime-view-file-name-regexp-1 subj)
237 (string-match mime-view-file-name-regexp-2 subj)))
238 (substring subj (match-beginning 0)(match-end 0))
241 (replace-as-filename filename)
245 ;;; @ file extraction
248 (defun mime-save-content (entity situation)
249 (let ((name (or (mime-entity-safe-filename entity)
250 (format "%s" (mime-entity-media-type entity))))
251 (dir (if (eq t mime-save-directory)
253 mime-save-directory))
255 (setq filename (read-file-name
256 (concat "File name: (default "
257 (file-name-nondirectory name) ") ")
259 (concat (file-name-as-directory dir)
260 (file-name-nondirectory name))))
261 (if (file-directory-p filename)
262 (setq filename (concat (file-name-as-directory filename)
263 (file-name-nondirectory name))))
264 (if (file-exists-p filename)
265 (or (yes-or-no-p (format "File %s exists. Save anyway? " filename))
267 (mime-write-entity-content entity (expand-file-name filename))
274 (defvar mime-magic-type-alist
275 '(("^\377\330\377[\340\356]..JFIF" image jpeg)
276 ("^\211PNG" image png)
277 ("^GIF8[79]" image gif)
278 ("^II\\*\000" image tiff)
279 ("^MM\000\\*" image tiff)
281 ("^\000\000\001\263" video mpeg)
283 "*Alist of regexp about magic-number vs. corresponding media-types.
284 Each element looks like (REGEXP TYPE SUBTYPE).
285 REGEXP is a regular expression to match against the beginning of the
287 TYPE is symbol to indicate primary type of media-type.
288 SUBTYPE is symbol to indicate subtype of media-type.")
290 (defun mime-detect-content (entity situation)
292 (let ((mdata (mime-entity-content entity))
293 (rest mime-magic-type-alist))
294 (while (not (let ((cell (car rest)))
296 (if (string-match (car cell) mdata)
297 (setq type (nth 1 cell)
298 subtype (nth 2 cell))
301 (setq rest (cdr rest))))
302 (setq situation (del-alist 'method (copy-alist situation)))
303 (mime-play-entity entity
305 (put-alist 'type type
306 (put-alist 'subtype subtype
309 'mime-detect-content)))
312 ;;; @ mail/news message
315 (defun mime-preview-quitting-method-for-mime-show-message-mode ()
316 "Quitting method for mime-view.
317 It is registered to variable `mime-preview-quitting-method-alist'."
318 (let ((mother mime-mother-buffer)
319 (win-conf mime-preview-original-window-configuration))
320 (if (and (boundp 'mime-view-temp-message-buffer)
321 (buffer-live-p mime-view-temp-message-buffer))
322 (kill-buffer mime-view-temp-message-buffer))
323 (mime-preview-kill-buffer)
324 (set-window-configuration win-conf)
325 (pop-to-buffer mother)))
327 (defun mime-view-message/rfc822 (entity situation)
329 (format "%s-%s" (buffer-name) (mime-entity-number entity)))
330 (mother (current-buffer))
331 (children (car (mime-entity-children entity)))
333 (mime-display-message
334 children new-name mother nil
335 (cdr (assq 'major-mode
336 (get-text-property (point) 'mime-view-situation))))))
337 (or (get-buffer-window preview-buffer)
338 (let ((m-win (get-buffer-window mother)))
340 (set-window-buffer m-win preview-buffer)
341 (switch-to-buffer preview-buffer)
345 ;;; @ message/partial
348 (defun mime-store-message/partial-piece (entity cal)
351 (concat "m-prts-" (user-login-name)) temporary-file-directory))
352 (id (cdr (assoc "id" cal)))
353 (number (cdr (assoc "number" cal)))
354 (total (cdr (assoc "total" cal)))
356 (mother (current-buffer)))
357 (or (file-exists-p root-dir)
358 (make-directory root-dir))
359 (setq id (replace-as-filename id))
360 (setq root-dir (concat root-dir "/" id))
361 (or (file-exists-p root-dir)
362 (make-directory root-dir))
363 (setq file (concat root-dir "/FULL"))
364 (if (file-exists-p file)
365 (let ((full-buf (get-buffer-create "FULL"))
366 (pwin (or (get-buffer-window mother)
367 (get-largest-window)))
369 (save-window-excursion
370 (set-buffer full-buf)
372 (insert-file-contents-as-binary file)
373 (setq major-mode 'mime-show-message-mode)
374 (mime-view-buffer (current-buffer) nil mother)
375 (setq pbuf (current-buffer))
376 (make-local-variable 'mime-view-temp-message-buffer)
377 (setq mime-view-temp-message-buffer full-buf))
378 (set-window-buffer pwin pbuf)
379 (select-window pwin))
380 (setq file (concat root-dir "/" number))
381 (mime-write-entity-body entity file)
382 (let ((total-file (concat root-dir "/CT")))
386 (or (file-exists-p total-file)
389 (get-buffer-create mime-temp-buffer-name))
392 (write-region (point-min)(point-max) total-file)
393 (kill-buffer (current-buffer))
395 (string-to-number total)
397 (and (file-exists-p total-file)
399 (set-buffer (find-file-noselect total-file))
401 (and (re-search-forward "[0-9]+" nil t)
403 (buffer-substring (match-beginning 0)
406 (kill-buffer (current-buffer))
409 (if (and total (> total 0)
410 (>= (length (directory-files root-dir nil "^[0-9]+$" t))
414 (set-buffer (get-buffer-create mime-temp-buffer-name))
415 (let ((full-buf (current-buffer)))
419 (setq file (concat root-dir "/" (int-to-string i)))
420 (or (file-exists-p file)
423 (as-binary-input-file (insert-file-contents file))
424 (goto-char (point-max))
427 (write-region-as-binary (point-min)(point-max)
428 (expand-file-name "FULL" root-dir))
431 (let ((file (format "%s/%d" root-dir i)))
432 (and (file-exists-p file)
437 (let ((file (expand-file-name "CT" root-dir)))
438 (and (file-exists-p file)
441 (let ((buf (current-buffer))
442 (pwin (or (get-buffer-window mother)
443 (get-largest-window)))
444 (pbuf (mime-display-message
445 (mime-open-entity 'buffer (current-buffer))
446 nil mother nil 'mime-show-message-mode)))
447 (with-current-buffer pbuf
448 (make-local-variable 'mime-view-temp-message-buffer)
449 (setq mime-view-temp-message-buffer buf))
450 (set-window-buffer pwin pbuf)
456 ;;; @ message/external-body
459 (defvar mime-raw-dired-function
460 (if (and (>= emacs-major-version 19) window-system)
461 (function dired-other-frame)
462 (function mime-raw-dired-function-for-one-frame)
465 (defun mime-raw-dired-function-for-one-frame (dir)
466 (let ((win (or (get-buffer-window mime-preview-buffer)
467 (get-largest-window))))
472 (defun mime-view-message/external-anon-ftp (entity cal)
473 (let* ((site (cdr (assoc "site" cal)))
474 (directory (cdr (assoc "directory" cal)))
475 (name (cdr (assoc "name" cal)))
476 (pathname (concat "/anonymous@" site ":" directory)))
477 (message (concat "Accessing " (expand-file-name name pathname) " ..."))
478 (funcall mime-raw-dired-function pathname)
479 (goto-char (point-min))
480 (search-forward name)
483 (defvar mime-raw-browse-url-function mime-browse-url-function)
485 (defun mime-view-message/external-url (entity cal)
486 (let ((url (cdr (assoc "url" cal))))
487 (message (concat "Accessing " url " ..."))
488 (funcall mime-raw-browse-url-function url)))
494 (defun mime-view-caesar (entity situation)
495 "Internal method for mime-view to display ROT13-47-48 message."
496 (let ((buf (get-buffer-create
497 (format "%s-%s" (buffer-name) (mime-entity-number entity)))))
498 (with-current-buffer buf
499 (setq buffer-read-only nil)
501 (mime-insert-text-content entity)
502 (mule-caesar-region (point-min) (point-max))
503 (set-buffer-modified-p nil)
505 (let ((win (get-buffer-window (current-buffer))))
506 (or (eq (selected-window) win)
507 (select-window (or win (get-largest-window)))
510 (goto-char (point-min))
519 ;;; mime-play.el ends here