wl/wl-mime.el

   1 ;;; wl-mime.el -- SEMI implementations of MIME processing on Wanderlust.
   2
   3 ;; Copyright 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
   4
   5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
   6 ;; Keywords: mail, net news
   7 ;; Time-stamp: <2000-04-20 17:43:19 teranisi>
   8
   9 ;; This file is part of Wanderlust (Yet Another Message Interface on Emacsen).
  10
  11 ;; This program is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 2, or (at your option)
  14 ;; any later version.
  15 ;;
  16 ;; This program is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20 ;;
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  24 ;; Boston, MA 02111-1307, USA.
  25 ;;
  26
  27 ;;; Commentary:
  28 ;;
  29
  30 ;;; Code:
  31 ;;
  32
  33 (require 'mime-view)
  34 (require 'mime-edit)
  35 (require 'mime-play)
  36 (require 'mmelmo)
  37
  38 (eval-when-compile
  39   (defun-maybe Meadow-version ())
  40   (mapcar
  41    (function
  42     (lambda (symbol)
  43       (unless (boundp symbol)
  44         (set (make-local-variable symbol) nil))))
  45    '(xemacs-betaname
  46      xemacs-codename
  47      enable-multibyte-characters
  48      mule-version)))
  49
  50 ;;; Draft
  51
  52 (defalias 'wl-draft-editor-mode 'mime-edit-mode)
  53
  54 (defalias 'wl-draft-decode-message-in-buffer
  55   'mime-edit-decode-message-in-buffer)
  56
  57 (defun wl-draft-yank-current-message-entity ()
  58   "Yank currently displayed message entity.
  59 By setting following-method as yank-content."
  60   (let ((wl-draft-buffer (current-buffer))
  61         (mime-view-following-method-alist
  62          (list (cons 'mmelmo-original-mode
  63                      (function wl-draft-yank-to-draft-buffer))))
  64         (mime-preview-following-method-alist
  65          (list (cons 'mmelmo-original-mode
  66                      (function wl-draft-yank-to-draft-buffer)))))
  67     (if (get-buffer (wl-current-message-buffer))
  68         (save-excursion
  69           (save-restriction
  70             (set-buffer (wl-current-message-buffer))
  71             (widen)
  72             (mime-preview-follow-current-entity))))))
  73
  74 (defalias 'wl-draft-enclose-digest-region 'mime-edit-enclose-digest-region)
  75
  76 ;; SEMI 1.13.5 or later.
  77 ;; (mime-display-message
  78 ;;  MESSAGE &optional
  79 ;;  PREVIEW-BUFFER MOTHER DEFAULT-KEYMAP-OR-FUNCTION ORIGINAL-MAJOR-MODE)
  80 ;; SEMI 1.13.4 or earlier.
  81 ;; (mime-display-message
  82 ;;  MESSAGE &optional
  83 ;;  PREVIEW-BUFFER MOTHER DEFAULT-KEYMAP-OR-FUNCTION)
  84 (static-if (or (and mime-user-interface-product
  85                     (eq (nth 0 (aref mime-user-interface-product 1)) 1)
  86                     (>= (nth 1 (aref mime-user-interface-product 1)) 14))
  87                (and mime-user-interface-product
  88                     (eq (nth 0 (aref mime-user-interface-product 1)) 1)
  89                     (eq (nth 1 (aref mime-user-interface-product 1)) 13)
  90                     (>= (nth 2 (aref mime-user-interface-product 1)) 5)))
  91     ;; Has original-major-mode optional argument.
  92     (defalias 'wl-mime-display-message 'mime-display-message)
  93   (defmacro wl-mime-display-message (message &optional
  94                                              preview-buffer mother
  95                                              default-keymap-or-function
  96                                              original-major-mode)
  97     (` (mime-display-message (, message) (, preview-buffer) (, mother)
  98                              (, default-keymap-or-function))))
  99   ;; User agent field of XEmacs has problem on SEMI 1.13.4 or earlier.
 100   (setq mime-edit-user-agent-value
 101         (concat
 102          (mime-product-name mime-user-interface-product) "/"
 103          (mapconcat
 104           #'number-to-string
 105           (mime-product-version mime-user-interface-product) ".")
 106          " (" (mime-product-code-name mime-user-interface-product)
 107          ") " (mime-product-name mime-library-product)
 108          "/" (mapconcat #'number-to-string
 109                         (mime-product-version mime-library-product) ".")
 110          " (" (mime-product-code-name mime-library-product) ") "
 111          (if (featurep 'xemacs)
 112              (concat
 113               (if (featurep 'mule) "MULE")
 114               " XEmacs"
 115               (if (string-match "\\s +\\((\\|\\\"\\)" emacs-version)
 116                   (concat "/" (substring emacs-version 0
 117                                          (match-beginning 0))
 118                           (if (and (boundp 'xemacs-betaname)
 119                                    ;; It does not exist in XEmacs
 120                                    ;; versions prior to 20.3.
 121                                    xemacs-betaname)
 122                               (concat " " xemacs-betaname)
 123                             "")
 124                           " (" xemacs-codename ") ("
 125                           system-configuration ")")
 126                 " (" emacs-version ")"))
 127            (let ((ver (if (string-match "\\.[0-9]+$" emacs-version)
 128                           (substring emacs-version 0 (match-beginning 0))
 129                         emacs-version)))
 130              (if (featurep 'mule)
 131                  (if (boundp 'enable-multibyte-characters)
 132                      (concat "Emacs/" ver
 133                              " (" system-configuration ")"
 134                              (if enable-multibyte-characters
 135                                  (concat " MULE/" mule-version)
 136                                " (with unibyte mode)")
 137                              (if (featurep 'meadow)
 138                                  (let ((mver (Meadow-version)))
 139                                    (if (string-match "^Meadow-" mver)
 140                                        (concat " Meadow/"
 141                                                (substring mver
 142                                                           (match-end 0)))))))
 143                    (concat "MULE/" mule-version
 144                            " (based on Emacs " ver ")"))
 145                (concat "Emacs/" ver " (" system-configuration ")")))))))
 146
 147 ;; FLIM 1.12.7
 148 ;; (mime-read-field FIELD-NAME &optional ENTITY)
 149 ;; FLIM 1.13.2 or later
 150 ;; (mime-entity-read-field ENTITY FIELD-NAME)
 151 (static-if (fboundp 'mime-entity-read-field)
 152     (defalias 'wl-mime-entity-read-field 'mime-entity-read-field)
 153   (defmacro wl-mime-entity-read-field (entity field-name)
 154     (` (mime-read-field (, field-name) (, entity)))))
 155
 156 (defun wl-draft-preview-message ()
 157   (interactive)
 158   (let ((mime-display-header-hook 'wl-highlight-headers)
 159         mime-view-ignored-field-list ; all header.
 160         (mime-edit-translate-buffer-hook (append
 161                                           (list 'wl-draft-config-exec)
 162                                           mime-edit-translate-buffer-hook)))
 163     (mime-edit-preview-message)
 164     (let ((buffer-read-only nil))
 165       (when wl-highlight-body-too
 166         (wl-highlight-body))
 167       (run-hooks 'wl-draft-preview-message-hook))))
 168
 169 (defalias 'wl-draft-caesar-region  'mule-caesar-region)
 170
 171 (defalias 'wl-draft-insert-message 'mime-edit-insert-message)
 172
 173 (defalias 'wl-draft-insert-mail 'mime-edit-insert-mail)
 174
 175 ;;; Message
 176
 177 (defun wl-message-decode-mode (outbuf inbuf)
 178   (let ((mime-view-content-header-filter-hook 'wl-highlight-headers)
 179         (mime-display-header-hook 'wl-highlight-headers))
 180     (mime-view-mode nil nil nil inbuf outbuf)))
 181
 182 (defun wl-message-decode-with-all-header (outbuf inbuf)
 183   (let ((mime-view-ignored-field-regexp "^:$")
 184         (mime-view-content-header-filter-hook 'wl-highlight-headers)
 185         (mime-display-header-hook 'wl-highlight-headers)
 186         mime-view-ignored-field-list)
 187     (mime-view-mode nil nil nil inbuf outbuf)))
 188
 189 (defun wl-message-delete-mime-out-buf ()
 190   (let (mime-out-buf mime-out-win)
 191     (if (setq mime-out-buf (get-buffer mime-echo-buffer-name))
 192         (if (setq mime-out-win (get-buffer-window mime-out-buf))
 193             (delete-window mime-out-win)))))
 194
 195 (defun wl-message-request-partial (folder number)
 196   (elmo-set-work-buf
 197    (elmo-read-msg-no-cache folder number (current-buffer))
 198    (mime-parse-buffer nil))); 'mime-buffer-entity)))
 199
 200 (defalias 'wl-message-read            'mime-preview-scroll-up-entity)
 201 (defalias 'wl-message-next-content    'mime-preview-move-to-next)
 202 (defalias 'wl-message-prev-content    'mime-preview-move-to-previous)
 203 (defalias 'wl-message-play-content    'mime-preview-play-current-entity)
 204 (defalias 'wl-message-extract-content 'mime-preview-extract-current-entity)
 205 (defalias 'wl-message-quit            'mime-preview-quit)
 206 (defalias 'wl-message-button-dispatcher 'mime-button-dispatcher)
 207
 208 ;;; Summary
 209 (defun wl-summary-burst-subr (children target number)
 210   ;; returns new number.
 211   (let (content-type message-entity granch)
 212     (while children
 213       (setq content-type (mime-entity-content-type (car children)))
 214       (if (eq (cdr (assq 'type content-type)) 'multipart)
 215           (setq number (wl-summary-burst-subr
 216                         (mime-entity-children (car children))
 217                         target
 218                         number))
 219         (when (and (eq (cdr (assq 'type content-type)) 'message)
 220                    (eq (cdr (assq 'subtype content-type)) 'rfc822))
 221           (message (format "Bursting...%s" (setq number (+ 1 number))))
 222           (setq message-entity
 223                 (car (mime-entity-children (car children))))
 224           (save-restriction
 225             (narrow-to-region (mime-entity-point-min message-entity)
 226                               (mime-entity-point-max message-entity))
 227             (elmo-append-msg target
 228                              ;;(mime-entity-content (car children))))
 229                              (buffer-substring (point-min) (point-max))
 230                              (std11-field-body "Message-ID")))))
 231       (setq children (cdr children)))
 232     number))
 233
 234 (defun wl-summary-burst ()
 235   (interactive)
 236   (let ((raw-buf (wl-message-get-original-buffer))
 237         children message-entity content-type target)
 238     (save-excursion
 239       (setq target wl-summary-buffer-folder-name)
 240       (while (not (elmo-folder-writable-p target))
 241         (setq target
 242               (wl-summary-read-folder wl-default-folder "to extract to")))
 243       (wl-summary-set-message-buffer-or-redisplay)
 244       (save-excursion
 245         (set-buffer (get-buffer wl-message-buf-name))
 246         (setq message-entity (get-text-property (point-min) 'mime-view-entity)))
 247       (set-buffer raw-buf)
 248       (setq children (mime-entity-children message-entity))
 249       (when children
 250         (message "Bursting...")
 251         (wl-summary-burst-subr children target 0)
 252         (message "Bursting...done."))
 253       (if (elmo-folder-plugged-p target)
 254           (elmo-commit target)))
 255     (wl-summary-sync-update3)))
 256
 257 ;; internal variable.
 258 (defvar wl-mime-save-dir nil "Last saved directory.")
 259 ;;; Yet another save method.
 260 (defun wl-mime-save-content (entity situation)
 261   (let ((filename (read-file-name "Save to file: "
 262                                   (expand-file-name
 263                                    (or (mime-entity-safe-filename entity)
 264                                        ".")
 265                                    (or wl-mime-save-dir
 266                                        wl-tmp-dir)))))
 267     (while (file-directory-p filename)
 268       (setq filename (read-file-name "Please set filename (not directory): "
 269                                      filename)))
 270     (if (file-exists-p filename)
 271         (or (yes-or-no-p (format "File %s exists. Save anyway? " filename))
 272             (error "Not saved")))
 273     (setq wl-mime-save-dir (file-name-directory filename))
 274     (mime-write-entity-content entity filename)))
 275
 276 ;;; Yet another combine method.
 277 (defun wl-mime-combine-message/partial-pieces (entity situation)
 278   "Internal method for wl to combine message/partial messages
 279 automatically."
 280   (interactive)
 281   (let* ((msgdb (save-excursion
 282                   (set-buffer wl-message-buffer-cur-summary-buffer)
 283                   wl-summary-buffer-msgdb))
 284          (mime-display-header-hook 'wl-highlight-headers)
 285          (folder wl-message-buffer-cur-folder)
 286          (id (or (cdr (assoc "id" situation)) ""))
 287          (mother (current-buffer))
 288          subject-id overviews
 289          (root-dir (expand-file-name
 290                     (concat "m-prts-" (user-login-name))
 291                     temporary-file-directory))
 292          full-file)
 293     (setq root-dir (concat root-dir "/" (replace-as-filename id)))
 294     (setq full-file (concat root-dir "/FULL"))
 295     (if (or (file-exists-p full-file)
 296             (not (y-or-n-p "Merge partials?")))
 297         (with-current-buffer mother
 298           (mime-store-message/partial-piece entity situation))
 299       (setq subject-id
 300             (eword-decode-string
 301              (decode-mime-charset-string
 302               (wl-mime-entity-read-field entity 'Subject)
 303               wl-summary-buffer-mime-charset)))
 304       (if (string-match "[0-9\n]+" subject-id)
 305           (setq subject-id (substring subject-id 0 (match-beginning 0))))
 306       (setq overviews (elmo-msgdb-get-overview msgdb))
 307       (catch 'tag
 308         (while overviews
 309           (when (string-match
 310                  (regexp-quote subject-id)
 311                  (elmo-msgdb-overview-entity-get-subject (car overviews)))
 312             (let* ((message
 313                     ;; request message at the cursor in Subject buffer.
 314                     (wl-message-request-partial
 315                      folder
 316                      (elmo-msgdb-overview-entity-get-number (car overviews))))
 317                    (situation (mime-entity-situation message))
 318                    (the-id (or (cdr (assoc "id" situation)) "")))
 319               (when (string= (downcase the-id)
 320                              (downcase id))
 321                 (with-current-buffer mother
 322                   (mime-store-message/partial-piece message situation))
 323                 (if (file-exists-p full-file)
 324                     (throw 'tag nil)))))
 325           (setq overviews (cdr overviews)))
 326         (message "Not all partials found.")))))
 327
 328 ;;; Setup methods.
 329 (defun wl-mime-setup ()
 330   (set-alist 'mime-preview-quitting-method-alist
 331              'mmelmo-original-mode 'wl-message-exit)
 332   (set-alist 'mime-view-over-to-previous-method-alist
 333              'mmelmo-original-mode 'wl-message-exit)
 334   (set-alist 'mime-view-over-to-next-method-alist
 335              'mmelmo-original-mode 'wl-message-exit)
 336   (set-alist 'mime-preview-over-to-previous-method-alist
 337              'mmelmo-original-mode 'wl-message-exit)
 338   (set-alist 'mime-preview-over-to-next-method-alist
 339              'mmelmo-original-mode 'wl-message-exit)
 340   (add-hook 'wl-summary-redisplay-hook 'wl-message-delete-mime-out-buf)
 341   (add-hook 'wl-message-exit-hook 'wl-message-delete-mime-out-buf)
 342
 343   (ctree-set-calist-strictly
 344    'mime-acting-condition
 345    '((type . message) (subtype . partial)
 346      (method .  wl-mime-combine-message/partial-pieces)
 347      (request-partial-message-method . wl-message-request-partial)
 348      (major-mode . mmelmo-original-mode)))
 349   (ctree-set-calist-strictly
 350    'mime-acting-condition
 351    '((mode . "extract")
 352      (major-mode . mmelmo-original-mode)
 353      (method . wl-mime-save-content)))
 354   (set-alist 'mime-preview-following-method-alist
 355              'mmelmo-original-mode
 356              (function wl-message-follow-current-entity))
 357   (set-alist 'mime-view-following-method-alist
 358              'mmelmo-original-mode
 359              (function wl-message-follow-current-entity))
 360   (set-alist 'mime-edit-message-inserter-alist
 361              'wl-draft-mode (function wl-draft-insert-current-message))
 362   (set-alist 'mime-edit-mail-inserter-alist
 363              'wl-draft-mode (function wl-draft-insert-get-message))
 364   (set-alist 'mime-edit-split-message-sender-alist
 365              'wl-draft-mode
 366              (cdr (assq 'mail-mode mime-edit-split-message-sender-alist)))
 367   (set-alist 'mime-raw-representation-type-alist
 368              'mmelmo-original-mode 'binary)
 369   ;; Sort and highlight header fields.
 370   (setq mmelmo-sort-field-list wl-message-sort-field-list)
 371   (add-hook 'mmelmo-header-inserted-hook 'wl-highlight-headers)
 372   (add-hook 'mmelmo-entity-content-inserted-hook 'wl-highlight-body))
 373
 374
 375 (provide 'wl-mime)
 376
 377 ;;; wl-mime.el ends here