| 1 | ;;; url-cid.el --- Content-ID URL loader |
| 2 | |
| 3 | ;; Copyright (C) 1998-1999, 2004-2012 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Keywords: comm, data, processes |
| 6 | |
| 7 | ;; This file is part of GNU Emacs. |
| 8 | |
| 9 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| 10 | ;; it under the terms of the GNU General Public License as published by |
| 11 | ;; the Free Software Foundation, either version 3 of the License, or |
| 12 | ;; (at your option) 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 | |
| 19 | ;; You should have received a copy of the GNU General Public License |
| 20 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 21 | |
| 22 | ;;; Code: |
| 23 | |
| 24 | (require 'url-vars) |
| 25 | (require 'url-parse) |
| 26 | |
| 27 | (require 'mm-decode) |
| 28 | |
| 29 | (defun url-cid-gnus (cid) |
| 30 | (let ((content-type nil) |
| 31 | (encoding nil) |
| 32 | (part nil) |
| 33 | (data nil)) |
| 34 | (setq part (mm-get-content-id cid)) |
| 35 | (if (not part) |
| 36 | (message "Unknown CID encountered: %s" cid) |
| 37 | (setq data (with-current-buffer (mm-handle-buffer part) |
| 38 | (buffer-string)) |
| 39 | content-type (mm-handle-type part) |
| 40 | encoding (symbol-name (mm-handle-encoding part))) |
| 41 | (if (= 0 (length content-type)) (setq content-type "text/plain")) |
| 42 | (if (= 0 (length encoding)) (setq encoding "8bit")) |
| 43 | (if (listp content-type) |
| 44 | (setq content-type (car content-type))) |
| 45 | (insert (format "Content-length: %d\r\n" (length data)) |
| 46 | "Content-type: " content-type "\r\n" |
| 47 | "Content-transfer-encoding: " encoding "\r\n" |
| 48 | "\r\n" |
| 49 | (or data ""))))) |
| 50 | |
| 51 | ;;;###autoload |
| 52 | (defun url-cid (url) |
| 53 | (cond |
| 54 | ((fboundp 'mm-get-content-id) |
| 55 | ;; Using Pterodactyl Gnus or later |
| 56 | (with-current-buffer (generate-new-buffer " *url-cid*") |
| 57 | (url-cid-gnus (url-filename url)))) |
| 58 | (t |
| 59 | (message "Unable to handle CID URL: %s" url)))) |
| 60 | |
| 61 | ;;; url-cid.el ends here |