1 ;;; mime-play.el --- Playback processing module for mime-view.el
3 ;; Copyright (C) 1994,1995,1996,1997,1998 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
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.
37 (error (defvar bbdb-buffer-name nil))
40 (defvar mime-acting-situation-examples nil)
42 (defun mime-save-acting-situation-examples ()
43 (let* ((file mime-acting-situation-examples-file)
44 (buffer (get-buffer-create " *mime-example*")))
48 (setq buffer-file-name file)
50 (insert ";;; " (file-name-nondirectory file) "\n")
51 (insert "\n;; This file is generated automatically by "
52 mime-view-version-string "\n\n")
53 (insert ";;; Code:\n\n")
54 (pp `(setq mime-acting-situation-examples
55 ',mime-acting-situation-examples)
58 (file-name-nondirectory file)
61 (kill-buffer buffer))))
63 (add-hook 'kill-emacs-hook 'mime-save-acting-situation-examples)
69 (defvar mime-preview-after-decoded-position nil)
71 (defun mime-preview-play-current-entity (&optional mode)
73 It decodes current entity to call internal or external method. The
74 method is selected from variable `mime-acting-condition'.
75 If MODE is specified, play as it. Default MODE is \"play\"."
79 (let ((entity (get-text-property (point) 'mime-view-entity)))
81 (let ((the-buf (current-buffer))
82 (raw-buffer (mime-entity-buffer entity)))
83 (setq mime-preview-after-decoded-position (point))
84 (set-buffer raw-buffer)
85 (mime-raw-play-entity entity mode)
86 (when (eq (current-buffer) raw-buffer)
88 (goto-char mime-preview-after-decoded-position)
91 (defun mime-sort-situation (situation)
101 (disposition-type . 6)
105 (let ((ret (assq a-t order)))
107 (setq a-order (cdr ret))
113 (let ((ret (assq b-t order)))
115 (setq b-order (cdr ret))
120 (if (= a-order b-order)
121 (string< (format "%s" a-t)(format "%s" b-t))
126 (defsubst mime-delq-null-situation (situations field)
129 (let ((situation (car situations)))
130 (if (assq field situation)
131 (setq dest (cons situation dest))
133 (setq situations (cdr situations)))
136 (defun mime-raw-play-entity (entity &optional mode situation)
137 "Play entity specified by ENTITY.
138 It decodes the entity to call internal or external method. The method
139 is selected from variable `mime-acting-condition'. If MODE is
140 specified, play as it. Default MODE is \"play\"."
143 (setq situation (mime-entity-situation entity)))
145 (setq situation (cons (cons 'mode mode) situation))
148 (or (ctree-match-calist mime-acting-situation-examples situation)
149 (ctree-match-calist-partially mime-acting-situation-examples
153 (or (mime-delq-null-situation
154 (ctree-find-calist mime-acting-condition ret
155 mime-view-find-every-acting-situation)
157 (mime-delq-null-situation
158 (ctree-find-calist mime-acting-condition situation
159 mime-view-find-every-acting-situation)
163 (setq ret (select-menu-alist
169 (cdr (assq 'method situation)))
172 (setq ret (mime-sort-situation ret))
173 (ctree-set-calist-strictly 'mime-acting-situation-examples ret)
178 (setq method (cdr (assq 'method ret)))
179 (cond ((and (symbolp method)
181 (funcall method entity ret)
184 (mime-activate-mailcap-method entity ret)
186 ;; ((and (listp method)(stringp (car method)))
187 ;; (mime-activate-external-method entity ret)
190 (mime-show-echo-buffer "No method are specified for %s\n"
191 (mime-entity-type/subtype entity))
196 ;;; @ external decoder
199 (defvar mime-mailcap-method-filename-alist nil)
201 (defun mime-activate-mailcap-method (entity situation)
204 (let ((start (mime-entity-point-min entity))
205 (end (mime-entity-point-max entity)))
206 (narrow-to-region start end)
208 (let ((method (cdr (assoc 'method situation)))
209 (name (mime-entity-safe-filename entity)))
212 (expand-file-name name mime-temp-directory)
214 (expand-file-name "EMI" mime-temp-directory))
216 (mime-write-decoded-region (mime-entity-body-start entity) end
217 name (cdr (assq 'encoding situation)))
218 (message "External method is starting...")
221 (mailcap-format-command
223 (cons (cons 'filename name) situation))))
224 (start-process command mime-echo-buffer-name
225 shell-file-name shell-command-switch command)
227 (set-alist 'mime-mailcap-method-filename-alist process name)
228 (set-process-sentinel process 'mime-mailcap-method-sentinel)
232 (defun mime-mailcap-method-sentinel (process event)
233 (let ((file (cdr (assq process mime-mailcap-method-filename-alist))))
234 (if (file-exists-p file)
237 (remove-alist 'mime-mailcap-method-filename-alist process)
238 (message (format "%s %s" process event)))
240 (defvar mime-echo-window-is-shared-with-bbdb t
241 "*If non-nil, mime-echo window is shared with BBDB window.")
243 (defvar mime-echo-window-height
246 (/ (window-height) 5)
248 "*Size of mime-echo window.
249 It allows function or integer. If it is function,
250 `mime-show-echo-buffer' calls it to get height of mime-echo window.
251 Otherwise `mime-show-echo-buffer' uses it as height of mime-echo
254 (defun mime-show-echo-buffer (&rest forms)
255 "Show mime-echo buffer to display MIME-playing information."
256 (get-buffer-create mime-echo-buffer-name)
257 (let ((the-win (selected-window))
258 (win (get-buffer-window mime-echo-buffer-name))
261 (if (and mime-echo-window-is-shared-with-bbdb
262 (boundp 'bbdb-buffer-name)
263 (setq win (get-buffer-window bbdb-buffer-name))
265 (set-window-buffer win mime-echo-buffer-name)
266 (select-window (get-buffer-window mime-preview-buffer))
267 (setq win (split-window-vertically
269 (if (functionp mime-echo-window-height)
270 (funcall mime-echo-window-height)
271 mime-echo-window-height)
273 (set-window-buffer win mime-echo-buffer-name)
276 (goto-char (point-max))
278 (insert (apply (function format) forms))
280 (select-window the-win)
287 (defvar mime-view-file-name-char-regexp "[A-Za-z0-9+_-]")
289 (defvar mime-view-file-name-regexp-1
290 (concat mime-view-file-name-char-regexp "+\\."
291 mime-view-file-name-char-regexp "+"))
293 (defvar mime-view-file-name-regexp-2
294 (concat (regexp-* mime-view-file-name-char-regexp)
295 "\\(\\." mime-view-file-name-char-regexp "+\\)*"))
297 (defun mime-entity-safe-filename (entity)
299 (or (mime-entity-filename entity)
301 (or (mime-entity-read-field entity 'Content-Description)
302 (mime-entity-read-field entity 'Subject))))
304 (or (string-match mime-view-file-name-regexp-1 subj)
305 (string-match mime-view-file-name-regexp-2 subj)))
306 (substring subj (match-beginning 0)(match-end 0))
309 (replace-as-filename filename)
313 ;;; @ file extraction
316 (defun mime-save-content (entity situation)
317 (let* ((name (mime-entity-safe-filename entity))
318 (encoding (or (mime-entity-encoding entity) "7bit"))
319 (filename (if (and name (not (string-equal name "")))
320 (expand-file-name name
321 (save-window-excursion
325 (interactive "DDirectory: ")
327 (save-window-excursion
331 (interactive "FFilename: ")
332 (expand-file-name file)))))))
334 (if (file-exists-p filename)
335 (or (yes-or-no-p (format "File %s exists. Save anyway? " filename))
337 (mime-write-decoded-region (mime-entity-body-start entity)
338 (mime-entity-body-end entity)
346 (defvar mime-file-content-type-alist
347 '(("JPEG" image jpeg)
350 "*Alist of \"file\" output patterns vs. corresponding media-types.
351 Each element looks like (REGEXP TYPE SUBTYPE).
352 REGEXP is pattern for \"file\" command output.
353 TYPE is symbol to indicate primary type of media-type.
354 SUBTYPE is symbol to indicate subtype of media-type.")
356 (defun mime-detect-content (entity situation)
357 (let ((beg (mime-entity-point-min entity))
358 (end (mime-entity-point-max entity)))
360 (let* ((name (save-restriction
361 (narrow-to-region beg end)
362 (mime-entity-safe-filename entity)
364 (encoding (or (cdr (assq 'encoding situation)) "7bit"))
365 (filename (if (and name (not (string-equal name "")))
366 (expand-file-name name mime-temp-directory)
368 (expand-file-name "EMI" mime-temp-directory)))))
369 (mime-write-decoded-region (mime-entity-body-start entity) end
373 (call-process "file" nil t nil filename)
374 (goto-char (point-min))
375 (if (search-forward (concat filename ": ") nil t)
376 (let ((rest mime-file-content-type-alist))
377 (while (not (let ((cell (car rest)))
378 (if (looking-at (car cell))
379 (setq type (nth 1 cell)
380 subtype (nth 2 cell))
382 (setq rest (cdr rest))))))
384 (mime-raw-play-entity
386 (put-alist 'type type
387 (put-alist 'subtype subtype
388 (mime-entity-situation entity))))
393 ;;; @ mail/news message
396 (defun mime-preview-quitting-method-for-mime-show-message-mode ()
397 "Quitting method for mime-view.
398 It is registered to variable `mime-preview-quitting-method-alist'."
399 (let ((mother mime-mother-buffer)
400 (win-conf mime-preview-original-window-configuration)
402 (kill-buffer mime-raw-buffer)
403 (mime-preview-kill-buffer)
404 (set-window-configuration win-conf)
405 (pop-to-buffer mother)
408 (defun mime-view-message/rfc822 (entity cal)
409 (let* ((beg (mime-entity-point-min entity))
410 (end (mime-entity-point-max entity))
411 (cnum (mime-raw-point-to-entity-number beg))
412 (new-name (format "%s-%s" (buffer-name) cnum))
413 (mother mime-preview-buffer)
415 (cdr (or (assq major-mode mime-raw-representation-type-alist)
416 (assq t mime-raw-representation-type-alist))))
418 (setq str (buffer-substring beg end))
419 (switch-to-buffer new-name)
422 (goto-char (point-min))
423 (if (re-search-forward "^\n" nil t)
424 (delete-region (point-min) (match-end 0))
426 (setq major-mode 'mime-show-message-mode)
427 (setq mime-raw-representation-type representation-type)
428 (mime-view-mode mother)
432 ;;; @ message/partial
435 (defun mime-raw-write-region (start end filename)
436 "Write current region into specified file.
437 When called from a program, takes three arguments:
438 START, END and FILENAME. START and END are buffer positions.
439 It refer `mime-raw-representation-type' or `major-mode
440 mime-raw-representation-type-alist'. If it is `binary', region is
441 saved as binary. Otherwise the region is saved by `write-region'."
442 (let ((presentation-type
443 (or mime-raw-representation-type
444 (cdr (or (assq major-mode mime-raw-representation-type-alist)
445 (assq t mime-raw-representation-type-alist))))))
446 (if (eq presentation-type 'binary)
447 (write-region-as-binary start end filename)
448 (write-region start end filename)
451 (defun mime-store-message/partial-piece (entity cal)
452 (goto-char (mime-entity-point-min entity))
455 (concat "m-prts-" (user-login-name)) mime-temp-directory))
456 (id (cdr (assoc "id" cal)))
457 (number (cdr (assoc "number" cal)))
458 (total (cdr (assoc "total" cal)))
460 (mother mime-preview-buffer)
462 (or (file-exists-p root-dir)
463 (make-directory root-dir)
465 (setq id (replace-as-filename id))
466 (setq root-dir (concat root-dir "/" id))
467 (or (file-exists-p root-dir)
468 (make-directory root-dir)
470 (setq file (concat root-dir "/FULL"))
471 (if (file-exists-p file)
472 (let ((full-buf (get-buffer-create "FULL"))
473 (pwin (or (get-buffer-window mother)
474 (get-largest-window)))
476 (save-window-excursion
477 (set-buffer full-buf)
479 (as-binary-input-file (insert-file-contents file))
480 (setq major-mode 'mime-show-message-mode)
481 (mime-view-mode mother)
483 (set-window-buffer pwin
485 (set-buffer full-buf)
486 mime-preview-buffer))
489 (re-search-forward "^$")
490 (goto-char (1+ (match-end 0)))
491 (setq file (concat root-dir "/" number))
492 (mime-raw-write-region (point) (mime-entity-point-max entity) file)
493 (let ((total-file (concat root-dir "/CT")))
497 (or (file-exists-p total-file)
500 (get-buffer-create mime-temp-buffer-name))
503 (write-region (point-min)(point-max) total-file)
504 (kill-buffer (current-buffer))
506 (string-to-number total)
508 (and (file-exists-p total-file)
510 (set-buffer (find-file-noselect total-file))
512 (and (re-search-forward "[0-9]+" nil t)
514 (buffer-substring (match-beginning 0)
517 (kill-buffer (current-buffer))
520 (if (and total (> total 0))
523 (set-buffer (get-buffer-create mime-temp-buffer-name))
524 (let ((full-buf (current-buffer)))
528 (setq file (concat root-dir "/" (int-to-string i)))
529 (or (file-exists-p file)
532 (as-binary-input-file (insert-file-contents file))
533 (goto-char (point-max))
536 (as-binary-output-file
537 (write-region (point-min)(point-max)
538 (expand-file-name "FULL" root-dir)))
541 (let ((file (format "%s/%d" root-dir i)))
542 (and (file-exists-p file)
547 (let ((file (expand-file-name "CT" root-dir)))
548 (and (file-exists-p file)
551 (save-window-excursion
552 (setq major-mode 'mime-show-message-mode)
553 (mime-view-mode mother)
555 (let ((pwin (or (get-buffer-window mother)
558 (pbuf (save-excursion
559 (set-buffer full-buf)
560 mime-preview-buffer)))
561 (set-window-buffer pwin pbuf)
567 ;;; @ message/external-body
570 (defvar mime-raw-dired-function
571 (if (and (>= emacs-major-version 19) window-system)
572 (function dired-other-frame)
573 (function mime-raw-dired-function-for-one-frame)
576 (defun mime-raw-dired-function-for-one-frame (dir)
577 (let ((win (or (get-buffer-window mime-preview-buffer)
578 (get-largest-window))))
583 (defun mime-view-message/external-ftp (entity cal)
584 (let* ((site (cdr (assoc "site" cal)))
585 (directory (cdr (assoc "directory" cal)))
586 (name (cdr (assoc "name" cal)))
587 (pathname (concat "/anonymous@" site ":" directory)))
588 (message (concat "Accessing " (expand-file-name name pathname) "..."))
589 (funcall mime-raw-dired-function pathname)
590 (goto-char (point-min))
591 (search-forward name)
598 (defun mime-view-caesar (entity situation)
599 "Internal method for mime-view to display ROT13-47-48 message."
600 (let* ((new-name (format "%s-%s" (buffer-name)
601 (mime-entity-number entity)))
602 (mother mime-preview-buffer))
603 (let ((pwin (or (get-buffer-window mother)
604 (get-largest-window)))
605 (buf (get-buffer-create new-name)))
606 (set-window-buffer pwin buf)
610 (setq buffer-read-only nil)
612 (mime-text-insert-decoded-body entity)
613 (mule-caesar-region (point-min) (point-max))
614 (set-buffer-modified-p nil)
616 (view-buffer new-name)
625 (let* ((file mime-acting-situation-examples-file)
626 (buffer (get-buffer-create " *mime-example*")))
627 (if (file-readable-p file)
632 (insert-file-contents file)
635 (or (eq (car mime-acting-situation-examples) 'type)
636 (setq mime-acting-situation-examples nil))
638 (kill-buffer buffer))))
640 ;;; mime-play.el ends here