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 (defvar mime-mailcap-method-messages-coding-system 'undecided
139 "Coding system for an external mailcap method.")
141 (defun mime-activate-mailcap-method (entity situation)
142 (let ((method (cdr (assoc 'method situation)))
143 (name (mime-entity-safe-filename entity)))
145 (if (and name (not (string= name "")))
146 (expand-file-name name temporary-file-directory)
148 (expand-file-name "EMI" temporary-file-directory))
150 (mime-write-entity-content entity name)
151 (message "External method is starting...")
154 (mime-format-mailcap-command
156 (cons (cons 'filename name) situation))))
157 (binary-to-text-funcall
158 #'mime-mailcap-method-messages-coding-system
159 #'start-process command mime-echo-buffer-name
160 shell-file-name shell-command-switch command)
162 (set-alist 'mime-mailcap-method-filename-alist process name)
163 (set-process-sentinel process 'mime-mailcap-method-sentinel)
167 (defun mime-mailcap-method-sentinel (process event)
168 (let ((file (cdr (assq process mime-mailcap-method-filename-alist))))
169 (if (file-exists-p file)
172 (remove-alist 'mime-mailcap-method-filename-alist process)
173 (message (format "%s %s" process event)))
175 (defvar mime-echo-window-is-shared-with-bbdb
176 (module-installed-p 'bbdb)
177 "*If non-nil, mime-echo window is shared with BBDB window.")
179 (defvar mime-echo-window-height
182 (/ (window-height) 5)
184 "*Size of mime-echo window.
185 It allows function or integer. If it is function,
186 `mime-show-echo-buffer' calls it to get height of mime-echo window.
187 Otherwise `mime-show-echo-buffer' uses it as height of mime-echo
190 (defun mime-show-echo-buffer (&rest forms)
191 "Show mime-echo buffer to display MIME-playing information."
192 (get-buffer-create mime-echo-buffer-name)
193 (let ((the-win (selected-window))
194 (win (get-buffer-window mime-echo-buffer-name)))
196 (unless (and mime-echo-window-is-shared-with-bbdb
198 (setq win (get-buffer-window bbdb-buffer-name))
200 (select-window (get-buffer-window (or mime-preview-buffer
202 (setq win (split-window-vertically
204 (if (functionp mime-echo-window-height)
205 (funcall mime-echo-window-height)
206 mime-echo-window-height)
209 (set-window-buffer win mime-echo-buffer-name)
212 (goto-char (point-max))
214 (let ((buffer-read-only nil))
215 (insert (apply (function format) forms))
217 (select-window the-win)
224 (defvar mime-view-file-name-char-regexp "[A-Za-z0-9+_-]")
226 (defvar mime-view-file-name-regexp-1
227 (concat mime-view-file-name-char-regexp "+\\."
228 mime-view-file-name-char-regexp "+"))
230 (defvar mime-view-file-name-regexp-2
231 (concat (regexp-* mime-view-file-name-char-regexp)
232 "\\(\\." mime-view-file-name-char-regexp "+\\)*"))
234 (defun mime-entity-safe-filename (entity)
236 (or (mime-entity-filename entity)
238 (or (mime-entity-read-field entity 'Content-Description)
239 (mime-entity-read-field entity 'Subject))))
241 (or (string-match mime-view-file-name-regexp-1 subj)
242 (string-match mime-view-file-name-regexp-2 subj)))
243 (substring subj (match-beginning 0)(match-end 0))
246 (replace-as-filename filename)
250 ;;; @ file extraction
253 (defun mime-save-content (entity situation)
254 (let ((name (or (mime-entity-safe-filename entity)
255 (format "%s" (mime-entity-media-type entity))))
256 (dir (if (eq t mime-save-directory)
258 mime-save-directory))
260 (setq filename (read-file-name
261 (concat "File name: (default "
262 (file-name-nondirectory name) ") ")
264 (concat (file-name-as-directory dir)
265 (file-name-nondirectory name))))
266 (if (file-directory-p filename)
267 (setq filename (concat (file-name-as-directory filename)
268 (file-name-nondirectory name))))
269 (if (file-exists-p filename)
270 (or (yes-or-no-p (format "File %s exists. Save anyway? " filename))
272 (mime-write-entity-content entity (expand-file-name filename))
279 (defvar mime-magic-type-alist
280 '(("^\377\330\377[\340\356]..JFIF" image jpeg)
281 ("^\211PNG" image png)
282 ("^GIF8[79]" image gif)
283 ("^II\\*\000" image tiff)
284 ("^MM\000\\*" image tiff)
286 ("^\000\000\001\263" video mpeg)
288 "*Alist of regexp about magic-number vs. corresponding media-types.
289 Each element looks like (REGEXP TYPE SUBTYPE).
290 REGEXP is a regular expression to match against the beginning of the
292 TYPE is symbol to indicate primary type of media-type.
293 SUBTYPE is symbol to indicate subtype of media-type.")
295 (defun mime-detect-content (entity situation)
297 (let ((mdata (mime-entity-content entity))
298 (rest mime-magic-type-alist))
299 (while (not (let ((cell (car rest)))
301 (if (string-match (car cell) mdata)
302 (setq type (nth 1 cell)
303 subtype (nth 2 cell))
306 (setq rest (cdr rest))))
307 (setq situation (del-alist 'method (copy-alist situation)))
308 (mime-play-entity entity
310 (put-alist 'type type
311 (put-alist 'subtype subtype
314 'mime-detect-content)))
317 ;;; @ mail/news message
320 (defun mime-preview-quitting-method-for-mime-show-message-mode ()
321 "Quitting method for mime-view.
322 It is registered to variable `mime-preview-quitting-method-alist'."
323 (let ((mother mime-mother-buffer)
324 (win-conf mime-preview-original-window-configuration))
325 (if (and (boundp 'mime-view-temp-message-buffer)
326 (buffer-live-p mime-view-temp-message-buffer))
327 (kill-buffer mime-view-temp-message-buffer))
328 (mime-preview-kill-buffer)
329 (set-window-configuration win-conf)
330 (pop-to-buffer mother)))
332 (defun mime-view-message/rfc822 (entity situation)
334 (format "%s-%s" (buffer-name) (mime-entity-number entity)))
335 (mother (current-buffer))
336 (children (car (mime-entity-children entity)))
338 (mime-display-message
339 children new-name mother nil
340 (cdr (assq 'major-mode
341 (get-text-property (point) 'mime-view-situation))))))
342 (or (get-buffer-window preview-buffer)
343 (let ((m-win (get-buffer-window mother)))
345 (set-window-buffer m-win preview-buffer)
346 (switch-to-buffer preview-buffer)
350 ;;; @ message/partial
353 (defun mime-store-message/partial-piece (entity cal)
356 (concat "m-prts-" (user-login-name)) temporary-file-directory))
357 (id (cdr (assoc "id" cal)))
358 (number (cdr (assoc "number" cal)))
359 (total (cdr (assoc "total" cal)))
361 (mother (current-buffer)))
362 (or (file-exists-p root-dir)
363 (make-directory root-dir))
364 (setq id (replace-as-filename id))
365 (setq root-dir (concat root-dir "/" id))
366 (or (file-exists-p root-dir)
367 (make-directory root-dir))
368 (setq file (concat root-dir "/FULL"))
369 (if (file-exists-p file)
370 (let ((full-buf (get-buffer-create "FULL"))
371 (pwin (or (get-buffer-window mother)
372 (get-largest-window)))
374 (save-window-excursion
375 (set-buffer full-buf)
377 (binary-insert-encoded-file file)
378 (setq major-mode 'mime-show-message-mode)
379 (mime-view-buffer (current-buffer) nil mother)
380 (setq pbuf (current-buffer))
381 (make-local-variable 'mime-view-temp-message-buffer)
382 (setq mime-view-temp-message-buffer full-buf))
383 (set-window-buffer pwin pbuf)
384 (select-window pwin))
385 (setq file (concat root-dir "/" number))
386 (mime-write-entity-body entity file)
387 (let ((total-file (concat root-dir "/CT")))
391 (or (file-exists-p total-file)
394 (get-buffer-create mime-temp-buffer-name))
397 (write-region (point-min)(point-max) total-file)
398 (kill-buffer (current-buffer))
400 (string-to-number total)
402 (and (file-exists-p total-file)
404 (set-buffer (find-file-noselect total-file))
406 (and (re-search-forward "[0-9]+" nil t)
408 (buffer-substring (match-beginning 0)
411 (kill-buffer (current-buffer))
414 (if (and total (> total 0)
415 (>= (length (directory-files root-dir nil "^[0-9]+$" t))
419 (set-buffer (get-buffer-create mime-temp-buffer-name))
420 (let ((full-buf (current-buffer)))
424 (setq file (concat root-dir "/" (int-to-string i)))
425 (or (file-exists-p file)
428 (binary-insert-encoded-file file)
429 (goto-char (point-max))
431 (binary-write-decoded-region
432 (point-min)(point-max)
433 (expand-file-name "FULL" root-dir))
436 (let ((file (format "%s/%d" root-dir i)))
437 (and (file-exists-p file)
440 (let ((file (expand-file-name "CT" root-dir)))
441 (and (file-exists-p file)
443 (let ((buf (current-buffer))
444 (pwin (or (get-buffer-window mother)
445 (get-largest-window)))
446 (pbuf (mime-display-message
447 (mime-open-entity 'buffer (current-buffer))
448 nil mother nil 'mime-show-message-mode)))
449 (with-current-buffer pbuf
450 (make-local-variable 'mime-view-temp-message-buffer)
451 (setq mime-view-temp-message-buffer buf))
452 (set-window-buffer pwin pbuf)
458 ;;; @ message/external-body
461 (defvar mime-raw-dired-function
462 (if (and (>= emacs-major-version 19) window-system)
463 (function dired-other-frame)
464 (function mime-raw-dired-function-for-one-frame)
467 (defun mime-raw-dired-function-for-one-frame (dir)
468 (let ((win (or (get-buffer-window mime-preview-buffer)
469 (get-largest-window))))
474 (defun mime-view-message/external-anon-ftp (entity cal)
475 (let* ((site (cdr (assoc "site" cal)))
476 (directory (cdr (assoc "directory" cal)))
477 (name (cdr (assoc "name" cal)))
478 (pathname (concat "/anonymous@" site ":" directory)))
479 (message (concat "Accessing " (expand-file-name name pathname) " ..."))
480 (funcall mime-raw-dired-function pathname)
481 (goto-char (point-min))
482 (search-forward name)
485 (defvar mime-raw-browse-url-function mime-browse-url-function)
487 (defun mime-view-message/external-url (entity cal)
488 (let ((url (cdr (assoc "url" cal))))
489 (message (concat "Accessing " url " ..."))
490 (funcall mime-raw-browse-url-function url)))
496 (defun mime-view-caesar (entity situation)
497 "Internal method for mime-view to display ROT13-47-48 message."
498 (let ((buf (get-buffer-create
499 (format "%s-%s" (buffer-name) (mime-entity-number entity)))))
500 (with-current-buffer buf
501 (setq buffer-read-only nil)
503 (mime-insert-text-content entity)
504 (mule-caesar-region (point-min) (point-max))
505 (set-buffer-modified-p nil)
507 (let ((win (get-buffer-window (current-buffer))))
508 (or (eq (selected-window) win)
509 (select-window (or win (get-largest-window)))
512 (goto-char (point-min))
521 ;;; mime-play.el ends here