mime-play.el

   1 ;;; mime-play.el --- decoder for mime-view.el
   2
   3 ;; Copyright (C) 1994,1995,1996,1997 Free Software Foundation, Inc.
   4
   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 0.9 1997-02-28 04:56:22 tmorioka Exp $
   9 ;; Keywords: MIME, multimedia, mail, news
  10
  11 ;; This file is part of SEMI (SEMI is Emacs MIME Interfaces).
  12
  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.
  17
  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.
  22
  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.
  27
  28 ;;; Code:
  29
  30 (require 'mime-view)
  31 (require 'alist)
  32
  33
  34 ;;; @ content decoder
  35 ;;;
  36
  37 (defvar mime-preview/after-decoded-position nil)
  38
  39 (defun mime-preview/decode-content ()
  40   (interactive)
  41   (let ((pc (mime-preview/point-pcinfo (point))))
  42     (if pc
  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))
  50               (progn
  51                 (set-buffer the-buf)
  52                 (goto-char mime-preview/after-decoded-position)
  53                 ))
  54           ))))
  55
  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))
  62         )
  63     ;; Check for VM
  64     (if (< beg (point-min))
  65         (setq beg (point-min))
  66       )
  67     (if (< (point-max) end)
  68         (setq end (point-max))
  69       )
  70     (let (method cal ret)
  71       (setq cal (list* (cons 'type ctype)
  72                        (cons 'encoding encoding)
  73                        (cons 'major-mode major-mode)
  74                        params))
  75       (if mime-view-decoding-mode
  76           (setq cal (cons
  77                      (cons 'mode mime-view-decoding-mode)
  78                      cal))
  79         )
  80       (setq ret (mime/get-content-decoding-alist cal))
  81       (setq method (cdr (assq 'method ret)))
  82       (cond ((and (symbolp method)
  83                   (fboundp method))
  84              (funcall method beg end ret)
  85              )
  86             ((and (listp method)(stringp (car method)))
  87              (mime-article/start-external-method-region beg end ret)
  88              )
  89             (t
  90              (mime-article/show-output-buffer
  91               "No method are specified for %s\n" ctype)
  92              ))
  93       )
  94     ))
  95
  96
  97 ;;; @ method selector
  98 ;;;
  99
 100 (defun mime/get-content-decoding-alist (al)
 101   (get-unified-alist mime/content-decoding-condition al)
 102   )
 103
 104
 105 ;;; @ external decoder
 106 ;;;
 107
 108 (defun mime-article/start-external-method-region (beg end cal)
 109   (save-excursion
 110     (save-restriction
 111       (narrow-to-region beg end)
 112       (goto-char beg)
 113       (let ((method (cdr (assoc 'method cal)))
 114             (name (mime-article/get-filename cal))
 115             )
 116         (if method
 117             (let ((file (make-temp-name
 118                          (expand-file-name "TM" mime/tmp-dir)))
 119                   b args)
 120               (if (nth 1 method)
 121                   (setq b beg)
 122                 (setq b
 123                       (if (re-search-forward "^$" nil t)
 124                           (1+ (match-end 0))
 125                         (point-min)
 126                         ))
 127                 )
 128               (goto-char b)
 129               (write-region b end file)
 130               (message "External method is starting...")
 131               (setq cal (put-alist
 132                          'name (replace-as-filename name) cal))
 133               (setq cal (put-alist 'file file cal))
 134               (setq args (nconc
 135                           (list (car method)
 136                                 mime/output-buffer-name (car method)
 137                                 )
 138                           (mime-article/make-method-args cal
 139                                                          (cdr (cdr method)))
 140                           ))
 141               (apply (function start-process) args)
 142               (mime-article/show-output-buffer)
 143               ))
 144         ))))
 145
 146 (defun mime-article/make-method-args (cal format)
 147   (mapcar (function
 148            (lambda (arg)
 149              (if (stringp arg)
 150                  arg
 151                (let* ((item (eval arg))
 152                       (ret (cdr (assoc item cal)))
 153                       )
 154                  (if ret
 155                      ret
 156                    (if (eq item 'encoding)
 157                        "7bit"
 158                      ""))
 159                  ))
 160              ))
 161           format))
 162
 163 (defun mime-article/show-output-buffer (&rest forms)
 164   (get-buffer-create mime/output-buffer-name)
 165   (let ((the-win (selected-window))
 166         (win (get-buffer-window mime/output-buffer-name))
 167         )
 168     (or win
 169         (if (and mime/output-buffer-window-is-shared-with-bbdb
 170                  (boundp 'bbdb-buffer-name)
 171                  (setq win (get-buffer-window bbdb-buffer-name))
 172                  )
 173             (set-window-buffer win mime/output-buffer-name)
 174           (select-window (get-buffer-window mime::article/preview-buffer))
 175           (setq win (split-window-vertically (/ (* (window-height) 3) 4)))
 176           (set-window-buffer win mime/output-buffer-name)
 177           ))
 178     (select-window win)
 179     (goto-char (point-max))
 180     (if forms
 181         (insert (apply (function format) forms))
 182       )
 183     (select-window the-win)
 184     ))
 185
 186
 187 ;;; @ file name
 188 ;;;
 189
 190 (defvar mime-view-file-name-char-regexp "[A-Za-z0-9+_-]")
 191
 192 (defvar mime-view-file-name-regexp-1
 193   (concat mime-view-file-name-char-regexp "+\\."
 194           mime-view-file-name-char-regexp "+"))
 195
 196 (defvar mime-view-file-name-regexp-2
 197   (concat (regexp-* mime-view-file-name-char-regexp)
 198           "\\(\\." mime-view-file-name-char-regexp "+\\)*"))
 199
 200 (defun mime-article/get-original-filename (param &optional encoding)
 201   (or (mime-article/get-uu-filename param encoding)
 202       (let (ret)
 203         (or (if (or (and (setq ret (mime/Content-Disposition))
 204                          (setq ret (assoc "filename" (cdr ret)))
 205                          )
 206                     (setq ret (assoc "name" param))
 207                     (setq ret (assoc "x-name" param))
 208                     )
 209                 (std11-strip-quoted-string (cdr ret))
 210               )
 211             (if (setq ret
 212                       (std11-find-field-body '("Content-Description"
 213                                                "Subject")))
 214                 (if (or (string-match mime-view-file-name-regexp-1 ret)
 215                         (string-match mime-view-file-name-regexp-2 ret))
 216                     (substring ret (match-beginning 0)(match-end 0))
 217                   ))
 218             ))
 219       ))
 220
 221 (defun mime-article/get-filename (param)
 222   (replace-as-filename (mime-article/get-original-filename param))
 223   )
 224
 225
 226 ;;; @ mail/news message
 227 ;;;
 228
 229 (defun mime-view-quitting-method-for-mime/show-message-mode ()
 230   (let ((mother mime::preview/mother-buffer)
 231         (win-conf mime::preview/original-window-configuration)
 232         )
 233     (kill-buffer
 234      (mime::preview-content-info/buffer (car mime::preview/content-list)))
 235     (mime-view-kill-buffer)
 236     (set-window-configuration win-conf)
 237     (pop-to-buffer mother)
 238     ;;(goto-char (point-min))
 239     ;;(mime-view-up-content)
 240     ))
 241
 242 (defun mime-article/view-message/rfc822 (beg end cal)
 243   (let* ((cnum (mime-article/point-content-number beg))
 244          (cur-buf (current-buffer))
 245          (new-name (format "%s-%s" (buffer-name) cnum))
 246          (mother mime::article/preview-buffer)
 247          (code-converter
 248           (or (cdr (assq major-mode mime-text-decoder-alist))
 249               'mime-view-default-code-convert-region))
 250          str)
 251     (setq str (buffer-substring beg end))
 252     (switch-to-buffer new-name)
 253     (erase-buffer)
 254     (insert str)
 255     (goto-char (point-min))
 256     (if (re-search-forward "^\n" nil t)
 257         (delete-region (point-min) (match-end 0))
 258       )
 259     (setq major-mode 'mime/show-message-mode)
 260     (setq mime::article/code-converter code-converter)
 261     (mime-view-mode mother)
 262     ))
 263
 264
 265 ;;; @ message/partial
 266 ;;;
 267
 268 (defvar mime-article/coding-system-alist
 269   (list '(mh-show-mode . no-conversion)
 270         (cons t (mime-charset-to-coding-system default-mime-charset))
 271         ))
 272
 273 (cond (running-mule-merged-emacs
 274        (defun mime-article::write-region (start end file)
 275          (let ((coding-system-for-write
 276                 (cdr
 277                  (or (assq major-mode mime-article/coding-system-alist)
 278                      (assq t mime-article/coding-system-alist)
 279                      ))))
 280            (write-region start end file)
 281            ))
 282        )
 283       ((or (boundp 'MULE)
 284            running-xemacs-with-mule)
 285        (defun mime-article::write-region (start end file)
 286          (let ((file-coding-system
 287                 (cdr
 288                  (or (assq major-mode mime-article/coding-system-alist)
 289                      (assq t mime-article/coding-system-alist)
 290                      ))))
 291            (write-region start end file)
 292            ))
 293        )
 294       ((boundp 'NEMACS)
 295        (defun mime-article::write-region (start end file)
 296          (let ((kanji-fileio-code
 297                 (cdr
 298                  (or (assq major-mode mime-article/kanji-code-alist)
 299                      (assq t mime-article/kanji-code-alist)
 300                      ))))
 301            (write-region start end file)
 302            ))
 303        )
 304       (t
 305        (defalias 'mime-article::write-region 'write-region)
 306        ))
 307
 308 (defun mime-article/decode-message/partial (beg end cal)
 309   (goto-char beg)
 310   (let* ((root-dir (expand-file-name
 311                     (concat "m-prts-" (user-login-name)) mime/tmp-dir))
 312          (id (cdr (assoc "id" cal)))
 313          (number (cdr (assoc "number" cal)))
 314          (total (cdr (assoc "total" cal)))
 315          file
 316          (mother mime::article/preview-buffer)
 317          )
 318     (or (file-exists-p root-dir)
 319         (make-directory root-dir)
 320         )
 321     (setq id (replace-as-filename id))
 322     (setq root-dir (concat root-dir "/" id))
 323     (or (file-exists-p root-dir)
 324         (make-directory root-dir)
 325         )
 326     (setq file (concat root-dir "/FULL"))
 327     (if (file-exists-p file)
 328         (let ((full-buf (get-buffer-create "FULL"))
 329               (pwin (or (get-buffer-window mother)
 330                         (get-largest-window)))
 331               )
 332           (save-window-excursion
 333             (set-buffer full-buf)
 334             (erase-buffer)
 335             (as-binary-input-file (insert-file-contents file))
 336             (setq major-mode 'mime/show-message-mode)
 337             (mime-view-mode mother)
 338             )
 339           (set-window-buffer pwin
 340                              (save-excursion
 341                                (set-buffer full-buf)
 342                                mime::article/preview-buffer))
 343           (select-window pwin)
 344           )
 345       (re-search-forward "^$")
 346       (goto-char (1+ (match-end 0)))
 347       (setq file (concat root-dir "/" number))
 348       (mime-article::write-region (point) (point-max) file)
 349       (let ((total-file (concat root-dir "/CT")))
 350         (setq total
 351               (if total
 352                   (progn
 353                     (or (file-exists-p total-file)
 354                         (save-excursion
 355                           (set-buffer
 356                            (get-buffer-create mime/temp-buffer-name))
 357                           (erase-buffer)
 358                           (insert total)
 359                           (write-file total-file)
 360                           (kill-buffer (current-buffer))
 361                           ))
 362                     (string-to-number total)
 363                     )
 364                 (and (file-exists-p total-file)
 365                      (save-excursion
 366                        (set-buffer (find-file-noselect total-file))
 367                        (prog1
 368                            (and (re-search-forward "[0-9]+" nil t)
 369                                 (string-to-number
 370                                  (buffer-substring (match-beginning 0)
 371                                                    (match-end 0)))
 372                                 )
 373                          (kill-buffer (current-buffer))
 374                          )))
 375                 )))
 376       (if (and total (> total 0))
 377           (catch 'tag
 378             (save-excursion
 379               (set-buffer (get-buffer-create mime/temp-buffer-name))
 380               (let ((full-buf (current-buffer)))
 381                 (erase-buffer)
 382                 (let ((i 1))
 383                   (while (<= i total)
 384                     (setq file (concat root-dir "/" (int-to-string i)))
 385                     (or (file-exists-p file)
 386                         (throw 'tag nil)
 387                         )
 388                     (as-binary-input-file (insert-file-contents file))
 389                     (goto-char (point-max))
 390                     (setq i (1+ i))
 391                     ))
 392                 (as-binary-output-file (write-file (concat root-dir "/FULL")))
 393                 (let ((i 1))
 394                   (while (<= i total)
 395                     (let ((file (format "%s/%d" root-dir i)))
 396                       (and (file-exists-p file)
 397                            (delete-file file)
 398                            ))
 399                     (setq i (1+ i))
 400                     ))
 401                 (let ((file (expand-file-name "CT" root-dir)))
 402                   (and (file-exists-p file)
 403                        (delete-file file)
 404                        ))
 405                 (save-window-excursion
 406                   (setq major-mode 'mime/show-message-mode)
 407                   (mime-view-mode mother)
 408                   )
 409                 (let ((pwin (or (get-buffer-window mother)
 410                                 (get-largest-window)
 411                                 ))
 412                       (pbuf (save-excursion
 413                               (set-buffer full-buf)
 414                               mime::article/preview-buffer)))
 415                   (set-window-buffer pwin pbuf)
 416                   (select-window pwin)
 417                   )))))
 418       )))
 419
 420
 421 ;;; @ rot13-47
 422 ;;;
 423
 424 (require 'view)
 425
 426 (defconst mime-view-text/plain-mode-map (copy-keymap view-mode-map))
 427 (define-key mime-view-text/plain-mode-map
 428   "q" (function mime-view-text/plain-exit))
 429
 430 (defun mime-view-text/plain-mode ()
 431   "\\{mime-view-text/plain-mode-map}"
 432   (setq buffer-read-only t)
 433   (setq major-mode 'mime-view-text/plain-mode)
 434   (setq mode-name "MIME-View text/plain")
 435   (use-local-map mime-view-text/plain-mode-map)
 436   )
 437
 438 (defun mime-view-text/plain-exit ()
 439   (interactive)
 440   (kill-buffer (current-buffer))
 441   )
 442
 443 (defun mime-article/decode-caesar (beg end cal)
 444   (let* ((cnum (mime-article/point-content-number beg))
 445          (cur-buf (current-buffer))
 446          (new-name (format "%s-%s" (buffer-name) cnum))
 447          (mother mime::article/preview-buffer)
 448          (charset (cdr (assoc "charset" cal)))
 449          (encoding (cdr (assq 'encoding cal)))
 450          (mode major-mode)
 451          str)
 452     (setq str (buffer-substring beg end))
 453     (let ((pwin (or (get-buffer-window mother)
 454                     (get-largest-window)))
 455           (buf (get-buffer-create new-name))
 456           )
 457       (set-window-buffer pwin buf)
 458       (set-buffer buf)
 459       (select-window pwin)
 460       )
 461     (setq buffer-read-only nil)
 462     (erase-buffer)
 463     (insert str)
 464     (goto-char (point-min))
 465     (if (re-search-forward "^\n" nil t)
 466         (delete-region (point-min) (match-end 0))
 467       )
 468     (let ((m (cdr (or (assq mode mime-text-decoder-alist)
 469                       (assq t mime-text-decoder-alist)))))
 470       (and (functionp m)
 471            (funcall m charset encoding)
 472            ))
 473     (save-excursion
 474       (set-mark (point-min))
 475       (goto-char (point-max))
 476       (tm:caesar-region)
 477       )
 478     (set-buffer-modified-p nil)
 479     (mime-view-text/plain-mode)
 480     ))
 481
 482
 483 ;;; @ end
 484 ;;;
 485
 486 (provide 'mime-play)
 487
 488 ;;; mime-play.el ends here