wl/wl-mime.el

   1 ;;; wl-mime.el -- SEMI implementations of MIME processing on Wanderlust.
   2
   3 ;; Copyright (C) 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
   4
   5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
   6 ;; Keywords: mail, net news
   7
   8 ;; This file is part of Wanderlust (Yet Another Message Interface on Emacsen).
   9
  10 ;; This program is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14 ;;
  15 ;; This program is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19 ;;
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24 ;;
  25
  26 ;;; Commentary:
  27 ;;
  28
  29 ;;; Code:
  30 ;;
  31
  32 (require 'mime-view)
  33 (require 'mime-edit)
  34 (require 'mime-play)
  35 (require 'elmo)
  36
  37 (eval-when-compile
  38   (defalias-maybe 'Meadow-version 'ignore))
  39
  40 (defvar xemacs-betaname)
  41 (defvar xemacs-codename)
  42 (defvar enable-multibyte-characters)
  43 (defvar mule-version)
  44
  45 ;;; Draft
  46
  47 (defalias 'wl-draft-editor-mode 'mime-edit-mode)
  48
  49 (defalias 'wl-draft-decode-message-in-buffer
  50   'mime-edit-decode-message-in-buffer)
  51
  52 (defun wl-draft-yank-current-message-entity ()
  53   "Yank currently displayed message entity.
  54 By setting following-method as yank-content."
  55   (let ((wl-draft-buffer (current-buffer))
  56         (mime-view-following-method-alist
  57          (list (cons 'wl-original-message-mode
  58                      (function wl-draft-yank-to-draft-buffer))))
  59         (mime-preview-following-method-alist
  60          (list (cons 'wl-original-message-mode
  61                      (function wl-draft-yank-to-draft-buffer)))))
  62     (if (get-buffer (wl-current-message-buffer))
  63         (save-excursion
  64           (save-restriction
  65             (set-buffer (wl-current-message-buffer))
  66             (widen)
  67             (mime-preview-follow-current-entity))))))
  68
  69 (defalias 'wl-draft-enclose-digest-region 'mime-edit-enclose-digest-region)
  70
  71 (defun wl-draft-preview-message ()
  72   ""
  73   (interactive)
  74   (let* (recipients-message
  75          (config-exec-flag wl-draft-config-exec-flag)
  76          (mime-display-header-hook 'wl-highlight-headers)
  77          mime-view-ignored-field-list   ; all header.
  78          (mime-edit-translate-buffer-hook
  79           (append
  80            (list
  81             (function
  82              (lambda ()
  83                (let ((wl-draft-config-exec-flag config-exec-flag))
  84                  (run-hooks 'wl-draft-send-hook)
  85                  (setq recipients-message
  86                        (concat "Recipients: "
  87                                (mapconcat
  88                                 'identity
  89                                 (wl-draft-deduce-address-list
  90                                  (current-buffer)
  91                                  (point-min)
  92                                  (save-excursion
  93                                    (goto-char (point-min))
  94                                    (re-search-forward
  95                                     (concat
  96                                      "^"
  97                                      (regexp-quote mail-header-separator)
  98                                      "$")
  99                                     nil t)
 100                                    (point)))
 101                                 ", ")))))))
 102            mime-edit-translate-buffer-hook)))
 103     (mime-edit-preview-message)
 104     (let ((buffer-read-only nil))
 105       (when wl-highlight-body-too
 106         (wl-highlight-body))
 107       (run-hooks 'wl-draft-preview-message-hook))
 108     (message recipients-message)))
 109
 110 (defalias 'wl-draft-caesar-region  'mule-caesar-region)
 111
 112 (defalias 'wl-draft-insert-message 'mime-edit-insert-message)
 113
 114 (defalias 'wl-draft-insert-mail 'mime-edit-insert-mail)
 115
 116 ;;; Message
 117
 118 (defun wl-message-decode-mode (outbuf inbuf)
 119   (let ((mime-view-content-header-filter-hook 'wl-highlight-headers)
 120         (mime-display-header-hook 'wl-highlight-headers))
 121     (mime-view-mode nil nil nil inbuf outbuf)))
 122
 123 (defun wl-message-decode-with-all-header (outbuf inbuf)
 124   (let ((mime-view-ignored-field-regexp "^:$")
 125         (mime-view-content-header-filter-hook 'wl-highlight-headers)
 126         (mime-display-header-hook 'wl-highlight-headers)
 127         mime-view-ignored-field-list)
 128     (mime-view-mode nil nil nil inbuf outbuf)))
 129
 130 (defun wl-message-delete-mime-out-buf ()
 131   (let (mime-out-buf mime-out-win)
 132     (if (setq mime-out-buf (get-buffer mime-echo-buffer-name))
 133         (if (setq mime-out-win (get-buffer-window mime-out-buf))
 134             (delete-window mime-out-win)))))
 135
 136 (defun wl-message-request-partial (folder number)
 137   (elmo-set-work-buf
 138    (elmo-message-fetch (wl-folder-get-elmo-folder folder)
 139                        number
 140                        (elmo-make-fetch-strategy 'entire)
 141                        nil
 142                        (current-buffer)
 143                        'unread)
 144    (mime-parse-buffer nil)))
 145
 146 (defalias 'wl-message-read            'mime-preview-scroll-up-entity)
 147 (defalias 'wl-message-next-content    'mime-preview-move-to-next)
 148 (defalias 'wl-message-prev-content    'mime-preview-move-to-previous)
 149 (defalias 'wl-message-play-content    'mime-preview-play-current-entity)
 150 (defalias 'wl-message-extract-content 'mime-preview-extract-current-entity)
 151 (defalias 'wl-message-quit            'mime-preview-quit)
 152 (defalias 'wl-message-button-dispatcher-internal
 153   'mime-button-dispatcher)
 154
 155 ;;; Summary
 156 (defun wl-summary-burst-subr (children target number)
 157   ;; returns new number.
 158   (let (content-type message-entity granch)
 159     (while children
 160       (setq content-type (mime-entity-content-type (car children)))
 161       (if (eq (cdr (assq 'type content-type)) 'multipart)
 162           (setq number (wl-summary-burst-subr
 163                         (mime-entity-children (car children))
 164                         target
 165                         number))
 166         (when (and (eq (cdr (assq 'type content-type)) 'message)
 167                    (eq (cdr (assq 'subtype content-type)) 'rfc822))
 168           (message (format "Bursting...%s" (setq number (+ 1 number))))
 169           (setq message-entity
 170                 (car (mime-entity-children (car children))))
 171           (with-temp-buffer
 172             (insert (mime-entity-body (car children)))
 173             (elmo-folder-append-buffer
 174              target
 175              (mime-entity-fetch-field message-entity
 176                                       "Message-ID")))))
 177       (setq children (cdr children)))
 178     number))
 179
 180 (defun wl-summary-burst ()
 181   ""
 182   (interactive)
 183   (let ((raw-buf (wl-summary-get-original-buffer))
 184         (view-buf wl-message-buffer)
 185         children message-entity content-type target)
 186     (save-excursion
 187       (setq target wl-summary-buffer-elmo-folder)
 188       (while (not (elmo-folder-writable-p target))
 189         (setq target
 190               (wl-summary-read-folder wl-default-folder "to extract to")))
 191       (wl-summary-set-message-buffer-or-redisplay)
 192       (with-current-buffer view-buf
 193         (setq message-entity (get-text-property (point-min) 'mime-view-entity)))
 194       (with-current-buffer raw-buf
 195         (setq children (mime-entity-children message-entity)))
 196       (when children
 197         (message "Bursting...")
 198         (wl-summary-burst-subr children target 0)
 199         (message "Bursting...done"))
 200       (if (elmo-folder-plugged-p target)
 201           (elmo-folder-check target)))
 202     (wl-summary-sync-update)))
 203
 204 ;; internal variable.
 205 (defvar wl-mime-save-dir nil "Last saved directory.")
 206 ;;; Yet another save method.
 207 (defun wl-mime-save-content (entity situation)
 208   (let ((filename (read-file-name "Save to file: "
 209                                   (expand-file-name
 210                                    (or (mime-entity-safe-filename entity)
 211                                        ".")
 212                                    (or wl-mime-save-dir
 213                                        wl-tmp-dir)))))
 214     (while (file-directory-p filename)
 215       (setq filename (read-file-name "Please set filename (not directory): "
 216                                      filename)))
 217     (if (file-exists-p filename)
 218         (or (yes-or-no-p (format "File %s exists. Save anyway? " filename))
 219             (error "Not saved")))
 220     (setq wl-mime-save-dir (file-name-directory filename))
 221     (mime-write-entity-content entity filename)))
 222
 223 ;;; Yet another combine method.
 224 (defun wl-mime-combine-message/partial-pieces (entity situation)
 225   "Internal method for wl to combine message/partial messages automatically."
 226   (interactive)
 227   (let* ((msgdb (save-excursion
 228                   (set-buffer wl-message-buffer-cur-summary-buffer)
 229                   (wl-summary-buffer-msgdb)))
 230          (mime-display-header-hook 'wl-highlight-headers)
 231          (folder wl-message-buffer-cur-folder)
 232          (id (or (cdr (assoc "id" situation)) ""))
 233          (mother (current-buffer))
 234          (summary-buf wl-message-buffer-cur-summary-buffer)
 235          subject-id overviews
 236          (root-dir (expand-file-name
 237                     (concat "m-prts-" (user-login-name))
 238                     temporary-file-directory))
 239          full-file point)
 240     (setq root-dir (concat root-dir "/" (replace-as-filename id)))
 241     (setq full-file (concat root-dir "/FULL"))
 242     (if (or (file-exists-p full-file)
 243             (not (y-or-n-p "Merge partials? ")))
 244         (with-current-buffer mother
 245           (mime-store-message/partial-piece entity situation)
 246           (setq wl-message-buffer-cur-summary-buffer summary-buf)
 247           (make-variable-buffer-local 'mime-preview-over-to-next-method-alist)
 248           (setq mime-preview-over-to-next-method-alist
 249                 (cons (cons 'mime-show-message-mode 'wl-message-exit)
 250                       mime-preview-over-to-next-method-alist))
 251           (make-variable-buffer-local 'mime-preview-over-to-previous-method-alist)
 252           (setq mime-preview-over-to-previous-method-alist
 253                 (cons (cons 'mime-show-message-mode 'wl-message-exit)
 254                       mime-preview-over-to-previous-method-alist)))
 255       (setq subject-id
 256             (eword-decode-string
 257              (decode-mime-charset-string
 258               (mime-entity-read-field entity 'Subject)
 259               wl-summary-buffer-mime-charset)))
 260       (if (string-match "[0-9\n]+" subject-id)
 261           (setq subject-id (substring subject-id 0 (match-beginning 0))))
 262       (setq overviews (elmo-msgdb-get-overview msgdb))
 263       (catch 'tag
 264         (while overviews
 265           (when (string-match
 266                  (regexp-quote subject-id)
 267                  (elmo-msgdb-overview-entity-get-subject (car overviews)))
 268             (let* ((message
 269                     ;; request message at the cursor in Subject buffer.
 270                     (wl-message-request-partial
 271                      folder
 272                      (elmo-msgdb-overview-entity-get-number
 273                       (car overviews))))
 274                    (situation (mime-entity-situation message))
 275                    (the-id (or (cdr (assoc "id" situation)) "")))
 276               (when (string= (downcase the-id)
 277                              (downcase id))
 278                 (with-current-buffer mother
 279                   (mime-store-message/partial-piece message situation))
 280                 (if (file-exists-p full-file)
 281                     (throw 'tag nil)))))
 282           (setq overviews (cdr overviews)))
 283         (message "Not all partials found.")))))
 284
 285 ;;; Setup methods.
 286 (defun wl-mime-setup ()
 287   (set-alist 'mime-preview-quitting-method-alist
 288              'wl-original-message-mode 'wl-message-exit)
 289   (set-alist 'mime-view-over-to-previous-method-alist
 290              'wl-original-message-mode 'wl-message-exit)
 291   (set-alist 'mime-view-over-to-next-method-alist
 292              'wl-original-message-mode 'wl-message-exit)
 293   (set-alist 'mime-preview-over-to-previous-method-alist
 294              'wl-original-message-mode 'wl-message-exit)
 295   (set-alist 'mime-preview-over-to-next-method-alist
 296              'wl-original-message-mode 'wl-message-exit)
 297   (add-hook 'wl-summary-redisplay-hook 'wl-message-delete-mime-out-buf)
 298   (add-hook 'wl-message-exit-hook 'wl-message-delete-mime-out-buf)
 299
 300   (ctree-set-calist-strictly
 301    'mime-acting-condition
 302    '((type . message) (subtype . partial)
 303      (method .  wl-mime-combine-message/partial-pieces)
 304      (request-partial-message-method . wl-message-request-partial)
 305      (major-mode . wl-original-message-mode)))
 306   (ctree-set-calist-strictly
 307    'mime-acting-condition
 308    '((mode . "extract")
 309      (major-mode . wl-original-message-mode)
 310      (method . wl-mime-save-content)))
 311   (set-alist 'mime-preview-following-method-alist
 312              'wl-original-message-mode
 313              (function wl-message-follow-current-entity))
 314   (set-alist 'mime-view-following-method-alist
 315              'wl-original-message-mode
 316              (function wl-message-follow-current-entity))
 317   (set-alist 'mime-edit-message-inserter-alist
 318              'wl-draft-mode (function wl-draft-insert-current-message))
 319   (set-alist 'mime-edit-mail-inserter-alist
 320              'wl-draft-mode (function wl-draft-insert-get-message))
 321   (set-alist 'mime-edit-split-message-sender-alist
 322              'wl-draft-mode
 323              (cdr (assq 'mail-mode mime-edit-split-message-sender-alist)))
 324   (set-alist 'mime-raw-representation-type-alist
 325              'wl-original-message-mode 'binary)
 326   ;; Sort and highlight header fields.
 327   (or wl-message-ignored-field-list
 328       (setq wl-message-ignored-field-list
 329             mime-view-ignored-field-list))
 330   (or wl-message-visible-field-list
 331       (setq wl-message-visible-field-list
 332             mime-view-visible-field-list))
 333   (set-alist 'mime-header-presentation-method-alist
 334              'wl-original-message-mode
 335              (function elmo-mime-insert-header))
 336   ;; To avoid overriding wl-draft-mode-map.
 337   (unless (assq 'wl-draft-mode mime-setup-signature-key-alist)
 338     (setq mime-setup-signature-key-alist
 339           (cons '(wl-draft-mode . "\C-c\C-w")
 340                 mime-setup-signature-key-alist)))
 341   (add-hook 'elmo-message-text-content-inserted-hook 'wl-highlight-body-all)
 342   (add-hook 'elmo-message-header-inserted-hook 'wl-highlight-headers))
 343
 344 (require 'product)
 345 (product-provide (provide 'wl-mime) (require 'wl-version))
 346
 347 ;;; wl-mime.el ends here