1 ;;; mime-play.el --- decoder for mime-view.el
3 ;; Copyright (C) 1994,1995,1996,1997 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 ;; Version: $Id: mime-play.el,v 0.8 1997-02-28 02:33:20 tmorioka Exp $
9 ;; Keywords: MIME, multimedia, mail, news
11 ;; This file is part of SEMI (SEMI is Emacs MIME Interfaces).
13 ;; This program is free software; you can redistribute it and/or
14 ;; modify it under the terms of the GNU General Public License as
15 ;; published by the Free Software Foundation; either version 2, or (at
16 ;; your option) any later version.
18 ;; This program is distributed in the hope that it will be useful, but
19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 ;; General Public License for more details.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with GNU Emacs; see the file COPYING. If not, write to the
25 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
26 ;; Boston, MA 02111-1307, USA.
37 (defvar mime-preview/after-decoded-position nil)
39 (defun mime-preview/decode-content ()
41 (let ((pc (mime-preview/point-pcinfo (point))))
43 (let ((the-buf (current-buffer)))
44 (setq mime-preview/after-decoded-position (point))
45 (set-buffer (mime::preview-content-info/buffer pc))
46 (mime-article/decode-content
47 (mime::preview-content-info/content-info pc))
48 (if (eq (current-buffer)
49 (mime::preview-content-info/buffer pc))
52 (goto-char mime-preview/after-decoded-position)
56 (defun mime-article/decode-content (cinfo)
57 (let ((beg (mime::content-info/point-min cinfo))
58 (end (mime::content-info/point-max cinfo))
59 (ctype (or (mime::content-info/type cinfo) "text/plain"))
60 (params (mime::content-info/parameters cinfo))
61 (encoding (mime::content-info/encoding cinfo))
64 (if (< beg (point-min))
65 (setq beg (point-min))
67 (if (< (point-max) end)
68 (setq end (point-max))
71 (setq cal (list* (cons 'type ctype)
72 (cons 'encoding encoding)
73 (cons 'major-mode major-mode)
75 (if mime-view-decoding-mode
77 (cons 'mode mime-view-decoding-mode)
80 (setq ret (mime/get-content-decoding-alist cal))
81 (setq method (cdr (assq 'method ret)))
82 (cond ((and (symbolp method)
84 (funcall method beg end ret)
86 ((and (listp method)(stringp (car method)))
87 (mime-article/start-external-method-region beg end ret)
90 (mime-article/show-output-buffer
91 "No method are specified for %s\n" ctype)
103 (defun put-fields (tp c)
108 (if (not (if (setq ret (assoc (car f) c))
109 (equal (cdr ret)(cdr f))
121 (defun field-unifier-for-default (a b)
123 (cond ((equal a b) a)
131 (defun field-unifier-for-mode (a b)
140 (defun field-unify (a b)
141 (let ((sym (intern (concat "field-unifier-for-" (symbol-value (car a))))))
143 (setq sym (function field-unifier-for-default))
152 (defun assoc-unify (class instance)
154 (let ((cla (copy-alist class))
155 (ins (copy-alist instance))
157 cell aret ret prev rest)
160 (setq aret (assoc (car cell) ins))
162 (if (setq ret (field-unify cell aret))
165 (setq prev (put-alist (car (car ret))
170 (setq rest (put-alist (car (nth 2 ret))
174 (setq cla (put-alist (car cell)(cdr (nth 1 ret)) cla))
175 (setq ins (del-alist (car cell) ins))
181 (setq r (copy-alist ins))
184 (setq aret (assoc (car cell) cla))
186 (if (setq ret (field-unify cell aret))
189 (setq prev (put-alist (car (car ret))
194 (setq rest (put-alist (car (nth 2 ret))
198 (setq cla (del-alist (car cell) cla))
199 (setq ins (put-alist (car cell)(cdr (nth 1 ret)) ins))
205 (list prev (append cla ins) rest)
208 (defun get-unified-alist (db al)
212 (if (setq ret (nth 1 (assoc-unify (car r) al)))
218 (defun delete-atype (atl al)
219 (let* ((r atl) ret oal)
223 (if (setq ret (nth 1 (assoc-unify (car r) al)))
231 (defun remove-atype (sym al)
233 (set sym (delete-atype (eval sym) al))
236 (defun replace-atype (atl old-al new-al)
237 (let* ((r atl) ret oal)
240 (if (setq ret (nth 1 (assoc-unify (car r) old-al)))
241 (throw 'tag (rplaca r new-al))
247 (defun set-atype (sym al &rest options)
248 (if (null (boundp sym))
250 (let* ((replacement (memq 'replacement options))
251 (ignore-fields (car (cdr (memq 'ignore options))))
252 (remove (or (car (cdr (memq 'remove options)))
253 (let ((ral (copy-alist al)))
256 (setq ral (del-alist type ral))
263 (replace-atype (eval sym) remove al)
266 (delete-atype (eval sym) remove)
274 (defun mime/get-content-decoding-alist (al)
275 (get-unified-alist mime/content-decoding-condition al)
279 ;;; @ external decoder
282 (defun mime-article/start-external-method-region (beg end cal)
285 (narrow-to-region beg end)
287 (let ((method (cdr (assoc 'method cal)))
288 (name (mime-article/get-filename cal))
291 (let ((file (make-temp-name
292 (expand-file-name "TM" mime/tmp-dir)))
297 (if (re-search-forward "^$" nil t)
303 (write-region b end file)
304 (message "External method is starting...")
306 'name (replace-as-filename name) cal))
307 (setq cal (put-alist 'file file cal))
310 mime/output-buffer-name (car method)
312 (mime-article/make-method-args cal
315 (apply (function start-process) args)
316 (mime-article/show-output-buffer)
320 (defun mime-article/make-method-args (cal format)
325 (let* ((item (eval arg))
326 (ret (cdr (assoc item cal)))
330 (if (eq item 'encoding)
337 (defun mime-article/show-output-buffer (&rest forms)
338 (get-buffer-create mime/output-buffer-name)
339 (let ((the-win (selected-window))
340 (win (get-buffer-window mime/output-buffer-name))
343 (if (and mime/output-buffer-window-is-shared-with-bbdb
344 (boundp 'bbdb-buffer-name)
345 (setq win (get-buffer-window bbdb-buffer-name))
347 (set-window-buffer win mime/output-buffer-name)
348 (select-window (get-buffer-window mime::article/preview-buffer))
349 (setq win (split-window-vertically (/ (* (window-height) 3) 4)))
350 (set-window-buffer win mime/output-buffer-name)
353 (goto-char (point-max))
355 (insert (apply (function format) forms))
357 (select-window the-win)
364 (defvar mime-view-file-name-char-regexp "[A-Za-z0-9+_-]")
366 (defvar mime-view-file-name-regexp-1
367 (concat mime-view-file-name-char-regexp "+\\."
368 mime-view-file-name-char-regexp "+"))
370 (defvar mime-view-file-name-regexp-2
371 (concat (regexp-* mime-view-file-name-char-regexp)
372 "\\(\\." mime-view-file-name-char-regexp "+\\)*"))
374 (defun mime-article/get-original-filename (param &optional encoding)
375 (or (mime-article/get-uu-filename param encoding)
377 (or (if (or (and (setq ret (mime/Content-Disposition))
378 (setq ret (assoc "filename" (cdr ret)))
380 (setq ret (assoc "name" param))
381 (setq ret (assoc "x-name" param))
383 (std11-strip-quoted-string (cdr ret))
386 (std11-find-field-body '("Content-Description"
388 (if (or (string-match mime-view-file-name-regexp-1 ret)
389 (string-match mime-view-file-name-regexp-2 ret))
390 (substring ret (match-beginning 0)(match-end 0))
395 (defun mime-article/get-filename (param)
396 (replace-as-filename (mime-article/get-original-filename param))
400 ;;; @ mail/news message
403 (defun mime-view-quitting-method-for-mime/show-message-mode ()
404 (let ((mother mime::preview/mother-buffer)
405 (win-conf mime::preview/original-window-configuration)
408 (mime::preview-content-info/buffer (car mime::preview/content-list)))
409 (mime-view-kill-buffer)
410 (set-window-configuration win-conf)
411 (pop-to-buffer mother)
412 ;;(goto-char (point-min))
413 ;;(mime-view-up-content)
416 (defun mime-article/view-message/rfc822 (beg end cal)
417 (let* ((cnum (mime-article/point-content-number beg))
418 (cur-buf (current-buffer))
419 (new-name (format "%s-%s" (buffer-name) cnum))
420 (mother mime::article/preview-buffer)
422 (or (cdr (assq major-mode mime-text-decoder-alist))
423 'mime-view-default-code-convert-region))
425 (setq str (buffer-substring beg end))
426 (switch-to-buffer new-name)
429 (goto-char (point-min))
430 (if (re-search-forward "^\n" nil t)
431 (delete-region (point-min) (match-end 0))
433 (setq major-mode 'mime/show-message-mode)
434 (setq mime::article/code-converter code-converter)
435 (mime-view-mode mother)
439 ;;; @ message/partial
442 (defvar mime-article/coding-system-alist
443 (list '(mh-show-mode . no-conversion)
444 (cons t (mime-charset-to-coding-system default-mime-charset))
447 (cond (running-mule-merged-emacs
448 (defun mime-article::write-region (start end file)
449 (let ((coding-system-for-write
451 (or (assq major-mode mime-article/coding-system-alist)
452 (assq t mime-article/coding-system-alist)
454 (write-region start end file)
458 running-xemacs-with-mule)
459 (defun mime-article::write-region (start end file)
460 (let ((file-coding-system
462 (or (assq major-mode mime-article/coding-system-alist)
463 (assq t mime-article/coding-system-alist)
465 (write-region start end file)
469 (defun mime-article::write-region (start end file)
470 (let ((kanji-fileio-code
472 (or (assq major-mode mime-article/kanji-code-alist)
473 (assq t mime-article/kanji-code-alist)
475 (write-region start end file)
479 (defalias 'mime-article::write-region 'write-region)
482 (defun mime-article/decode-message/partial (beg end cal)
484 (let* ((root-dir (expand-file-name
485 (concat "m-prts-" (user-login-name)) mime/tmp-dir))
486 (id (cdr (assoc "id" cal)))
487 (number (cdr (assoc "number" cal)))
488 (total (cdr (assoc "total" cal)))
490 (mother mime::article/preview-buffer)
492 (or (file-exists-p root-dir)
493 (make-directory root-dir)
495 (setq id (replace-as-filename id))
496 (setq root-dir (concat root-dir "/" id))
497 (or (file-exists-p root-dir)
498 (make-directory root-dir)
500 (setq file (concat root-dir "/FULL"))
501 (if (file-exists-p file)
502 (let ((full-buf (get-buffer-create "FULL"))
503 (pwin (or (get-buffer-window mother)
504 (get-largest-window)))
506 (save-window-excursion
507 (set-buffer full-buf)
509 (as-binary-input-file (insert-file-contents file))
510 (setq major-mode 'mime/show-message-mode)
511 (mime-view-mode mother)
513 (set-window-buffer pwin
515 (set-buffer full-buf)
516 mime::article/preview-buffer))
519 (re-search-forward "^$")
520 (goto-char (1+ (match-end 0)))
521 (setq file (concat root-dir "/" number))
522 (mime-article::write-region (point) (point-max) file)
523 (let ((total-file (concat root-dir "/CT")))
527 (or (file-exists-p total-file)
530 (get-buffer-create mime/temp-buffer-name))
533 (write-file total-file)
534 (kill-buffer (current-buffer))
536 (string-to-number total)
538 (and (file-exists-p total-file)
540 (set-buffer (find-file-noselect total-file))
542 (and (re-search-forward "[0-9]+" nil t)
544 (buffer-substring (match-beginning 0)
547 (kill-buffer (current-buffer))
550 (if (and total (> total 0))
553 (set-buffer (get-buffer-create mime/temp-buffer-name))
554 (let ((full-buf (current-buffer)))
558 (setq file (concat root-dir "/" (int-to-string i)))
559 (or (file-exists-p file)
562 (as-binary-input-file (insert-file-contents file))
563 (goto-char (point-max))
566 (as-binary-output-file (write-file (concat root-dir "/FULL")))
569 (let ((file (format "%s/%d" root-dir i)))
570 (and (file-exists-p file)
575 (let ((file (expand-file-name "CT" root-dir)))
576 (and (file-exists-p file)
579 (save-window-excursion
580 (setq major-mode 'mime/show-message-mode)
581 (mime-view-mode mother)
583 (let ((pwin (or (get-buffer-window mother)
586 (pbuf (save-excursion
587 (set-buffer full-buf)
588 mime::article/preview-buffer)))
589 (set-window-buffer pwin pbuf)
600 (defconst mime-view-text/plain-mode-map (copy-keymap view-mode-map))
601 (define-key mime-view-text/plain-mode-map
602 "q" (function mime-view-text/plain-exit))
604 (defun mime-view-text/plain-mode ()
605 "\\{mime-view-text/plain-mode-map}"
606 (setq buffer-read-only t)
607 (setq major-mode 'mime-view-text/plain-mode)
608 (setq mode-name "MIME-View text/plain")
609 (use-local-map mime-view-text/plain-mode-map)
612 (defun mime-view-text/plain-exit ()
614 (kill-buffer (current-buffer))
617 (defun mime-article/decode-caesar (beg end cal)
618 (let* ((cnum (mime-article/point-content-number beg))
619 (cur-buf (current-buffer))
620 (new-name (format "%s-%s" (buffer-name) cnum))
621 (mother mime::article/preview-buffer)
622 (charset (cdr (assoc "charset" cal)))
623 (encoding (cdr (assq 'encoding cal)))
626 (setq str (buffer-substring beg end))
627 (let ((pwin (or (get-buffer-window mother)
628 (get-largest-window)))
629 (buf (get-buffer-create new-name))
631 (set-window-buffer pwin buf)
635 (setq buffer-read-only nil)
638 (goto-char (point-min))
639 (if (re-search-forward "^\n" nil t)
640 (delete-region (point-min) (match-end 0))
642 (let ((m (cdr (or (assq mode mime-text-decoder-alist)
643 (assq t mime-text-decoder-alist)))))
645 (funcall m charset encoding)
648 (set-mark (point-min))
649 (goto-char (point-max))
652 (set-buffer-modified-p nil)
653 (mime-view-text/plain-mode)
662 ;;; mime-play.el ends here