lisp/url/url-cid.el

   1 ;;; url-cid.el --- Content-ID URL loader
   2 ;; Keywords: comm, data, processes
   3
   4 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
   5 ;;; Copyright (c) 1998 - 1999 Free Software Foundation, Inc.
   6 ;;;
   7 ;;; This file is part of GNU Emacs.
   8 ;;;
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  10 ;;; it under the terms of the GNU General Public License as published by
  11 ;;; the Free Software Foundation; either version 2, or (at your option)
  12 ;;; any later version.
  13 ;;;
  14 ;;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;;; GNU General Public License for more details.
  18 ;;;
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  21 ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  22 ;;; Boston, MA 02111-1307, USA.
  23 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  24
  25 (require 'url-vars)
  26 (require 'url-parse)
  27
  28 (require 'mm-decode)
  29
  30 (defun url-cid-gnus (cid)
  31   (let ((content-type nil)
  32         (encoding nil)
  33         (part nil)
  34         (data nil))
  35     (setq part (mm-get-content-id cid))
  36     (if (not part)
  37         (message "Unknown CID encountered: %s" cid)
  38       (setq data (save-excursion
  39                    (set-buffer (mm-handle-buffer part))
  40                    (buffer-string))
  41             content-type (mm-handle-type part)
  42             encoding (symbol-name (mm-handle-encoding part)))
  43       (if (= 0 (length content-type)) (setq content-type "text/plain"))
  44       (if (= 0 (length encoding)) (setq encoding "8bit"))
  45       (if (listp content-type)
  46           (setq content-type (car content-type)))
  47       (insert (format "Content-type: %d\r\n"  (length data))
  48               "Content-type: " content-type "\r\n"
  49               "Content-transfer-encoding: " encoding "\r\n"
  50               "\r\n"
  51               (or data "")))))
  52
  53 ;;;###autoload
  54 (defun url-cid (url)
  55   (cond
  56    ((fboundp 'mm-get-content-id)
  57     ;; Using Pterodactyl Gnus or later
  58     (save-excursion
  59       (set-buffer (generate-new-buffer " *url-cid*"))
  60       (url-cid-gnus (url-filename url))))
  61    (t
  62     (message "Unable to handle CID URL: %s" url))))
  63
  64 ;;; arch-tag: 23d9ab74-fad4-4dba-b1e7-292871e8bda5