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1 | ;;; mm-extern.el --- showing message/external-body |
2 | ;; Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc. | |
3 | ||
4 | ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu> | |
5 | ;; Keywords: message external-body | |
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 | |
11 | ;; by the Free Software Foundation; either version 2, or (at your | |
12 | ;; option) any later version. | |
13 | ||
14 | ;; GNU Emacs is distributed in the hope that it will be useful, but | |
15 | ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | ;; 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; see the file COPYING. If not, write to the | |
21 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | ;; Boston, MA 02111-1307, USA. | |
23 | ||
24 | ;;; Commentary: | |
25 | ||
26 | ;;; Code: | |
27 | ||
28 | (eval-when-compile (require 'cl)) | |
29 | ||
30 | (require 'mm-util) | |
31 | (require 'mm-decode) | |
32 | (require 'mm-url) | |
33 | ||
34 | (defvar mm-extern-function-alist | |
35 | '((local-file . mm-extern-local-file) | |
36 | (url . mm-extern-url) | |
37 | (anon-ftp . mm-extern-anon-ftp) | |
38 | (ftp . mm-extern-ftp) | |
39 | ;;; (tftp . mm-extern-tftp) | |
40 | (mail-server . mm-extern-mail-server) | |
41 | ;;; (afs . mm-extern-afs)) | |
42 | )) | |
43 | ||
44 | (defvar mm-extern-anonymous "anonymous") | |
45 | ||
46 | (defun mm-extern-local-file (handle) | |
47 | (erase-buffer) | |
48 | (let ((name (cdr (assq 'name (cdr (mm-handle-type handle))))) | |
49 | (coding-system-for-read mm-binary-coding-system)) | |
50 | (unless name | |
51 | (error "The filename is not specified")) | |
52 | (mm-disable-multibyte) | |
53 | (if (file-exists-p name) | |
54 | (mm-insert-file-contents name nil nil nil nil t) | |
55 | (error (format "File %s is gone" name))))) | |
56 | ||
57 | (defun mm-extern-url (handle) | |
58 | (erase-buffer) | |
59 | (let ((url (cdr (assq 'url (cdr (mm-handle-type handle))))) | |
60 | (name buffer-file-name) | |
61 | (coding-system-for-read mm-binary-coding-system)) | |
62 | (unless url | |
63 | (error "URL is not specified")) | |
64 | (mm-with-unibyte-current-buffer | |
65 | (mm-url-insert-file-contents url)) | |
66 | (mm-disable-multibyte) | |
67 | (setq buffer-file-name name))) | |
68 | ||
69 | (defun mm-extern-anon-ftp (handle) | |
70 | (erase-buffer) | |
71 | (let* ((params (cdr (mm-handle-type handle))) | |
72 | (name (cdr (assq 'name params))) | |
73 | (site (cdr (assq 'site params))) | |
74 | (directory (cdr (assq 'directory params))) | |
75 | (mode (cdr (assq 'mode params))) | |
76 | (path (concat "/" (or mm-extern-anonymous | |
77 | (read-string (format "ID for %s: " site))) | |
78 | "@" site ":" directory "/" name)) | |
79 | (coding-system-for-read mm-binary-coding-system)) | |
80 | (unless name | |
81 | (error "The filename is not specified")) | |
82 | (mm-disable-multibyte) | |
83 | (mm-insert-file-contents path nil nil nil nil t))) | |
84 | ||
85 | (defun mm-extern-ftp (handle) | |
86 | (let (mm-extern-anonymous) | |
87 | (mm-extern-anon-ftp handle))) | |
88 | ||
89 | (defun mm-extern-mail-server (handle) | |
90 | (require 'message) | |
91 | (let* ((params (cdr (mm-handle-type handle))) | |
92 | (server (cdr (assq 'server params))) | |
93 | (subject (or (cdr (assq 'subject params)) "none")) | |
94 | (buf (current-buffer)) | |
95 | info) | |
96 | (if (y-or-n-p (format "Send a request message to %s?" server)) | |
97 | (save-window-excursion | |
98 | (message-mail server subject) | |
99 | (message-goto-body) | |
100 | (delete-region (point) (point-max)) | |
101 | (insert-buffer-substring buf) | |
102 | (message "Requesting external body...") | |
103 | (message-send-and-exit) | |
104 | (setq info "Request is sent.") | |
105 | (message info)) | |
106 | (setq info "Request is not sent.")) | |
107 | (goto-char (point-min)) | |
108 | (insert "[" info "]\n\n"))) | |
109 | ||
110 | ;;;###autoload | |
111 | (defun mm-inline-external-body (handle &optional no-display) | |
112 | "Show the external-body part of HANDLE. | |
113 | This function replaces the buffer of HANDLE with a buffer contains | |
114 | the entire message. | |
115 | If NO-DISPLAY is nil, display it. Otherwise, do nothing after replacing." | |
116 | (let* ((access-type (cdr (assq 'access-type | |
117 | (cdr (mm-handle-type handle))))) | |
118 | (func (cdr (assq (intern | |
119 | (downcase | |
120 | (or access-type | |
121 | (error "Couldn't find access type")))) | |
122 | mm-extern-function-alist))) | |
123 | gnus-displaying-mime buf | |
124 | handles) | |
125 | (unless (mm-handle-cache handle) | |
126 | (unless func | |
127 | (error (format "Access type (%s) is not supported" access-type))) | |
128 | (with-temp-buffer | |
129 | (mm-insert-part handle) | |
130 | (goto-char (point-max)) | |
131 | (insert "\n\n") | |
132 | (setq handles (mm-dissect-buffer t))) | |
133 | (unless (bufferp (car handles)) | |
134 | (mm-destroy-parts handles) | |
135 | (error "Multipart external body is not supported")) | |
136 | (save-excursion ;; single part | |
137 | (set-buffer (setq buf (mm-handle-buffer handles))) | |
138 | (let (good) | |
139 | (unwind-protect | |
140 | (progn | |
141 | (funcall func handle) | |
142 | (setq good t)) | |
143 | (unless good | |
144 | (mm-destroy-parts handles)))) | |
145 | (mm-handle-set-cache handle handles)) | |
146 | (setq gnus-article-mime-handles | |
147 | (mm-merge-handles gnus-article-mime-handles handles))) | |
148 | (unless no-display | |
149 | (save-excursion | |
150 | (save-restriction | |
151 | (narrow-to-region (point) (point)) | |
152 | (gnus-display-mime (mm-handle-cache handle)) | |
153 | (mm-handle-set-undisplayer | |
154 | handle | |
155 | `(lambda () | |
156 | (let (buffer-read-only) | |
157 | (condition-case nil | |
158 | ;; This is only valid on XEmacs. | |
159 | (mapcar (lambda (prop) | |
160 | (remove-specifier | |
161 | (face-property 'default prop) (current-buffer))) | |
162 | '(background background-pixmap foreground)) | |
163 | (error nil)) | |
164 | (delete-region ,(point-min-marker) ,(point-max-marker)))))))))) | |
165 | ||
166 | (provide 'mm-extern) | |
167 | ||
168 | ;;; arch-tag: 9653808e-14d9-4172-86e6-adceaa05378e | |
169 | ;;; mm-extern.el ends here |