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23f87bed | 1 | ;;; mm-extern.el --- showing message/external-body |
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2 | |
3 | ;; Copyright (C) 2000, 2001, 2002, 2003, 2004, | |
114f9c96 | 4 | ;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
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5 | |
6 | ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu> | |
7 | ;; Keywords: message external-body | |
8 | ||
9 | ;; This file is part of GNU Emacs. | |
10 | ||
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11 | ;; GNU Emacs 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 3 of the License, or | |
14 | ;; (at your option) any later version. | |
23f87bed | 15 | |
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16 | ;; GNU Emacs 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. | |
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20 | |
21 | ;; You should have received a copy of the GNU General Public License | |
5e809f55 | 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
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23 | |
24 | ;;; Commentary: | |
25 | ||
26 | ;;; Code: | |
27 | ||
f0b7f5a8 | 28 | ;; For Emacs <22.2 and XEmacs. |
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29 | (eval-and-compile |
30 | (unless (fboundp 'declare-function) (defmacro declare-function (&rest r)))) | |
31 | ||
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32 | (eval-when-compile (require 'cl)) |
33 | ||
34 | (require 'mm-util) | |
35 | (require 'mm-decode) | |
36 | (require 'mm-url) | |
37 | ||
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38 | (defvar gnus-article-mime-handles) |
39 | ||
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40 | (defvar mm-extern-function-alist |
41 | '((local-file . mm-extern-local-file) | |
42 | (url . mm-extern-url) | |
43 | (anon-ftp . mm-extern-anon-ftp) | |
44 | (ftp . mm-extern-ftp) | |
45 | ;;; (tftp . mm-extern-tftp) | |
46 | (mail-server . mm-extern-mail-server) | |
47 | ;;; (afs . mm-extern-afs)) | |
48 | )) | |
49 | ||
50 | (defvar mm-extern-anonymous "anonymous") | |
51 | ||
52 | (defun mm-extern-local-file (handle) | |
53 | (erase-buffer) | |
54 | (let ((name (cdr (assq 'name (cdr (mm-handle-type handle))))) | |
55 | (coding-system-for-read mm-binary-coding-system)) | |
56 | (unless name | |
57 | (error "The filename is not specified")) | |
58 | (mm-disable-multibyte) | |
59 | (if (file-exists-p name) | |
60 | (mm-insert-file-contents name nil nil nil nil t) | |
d7cd3710 | 61 | (error "File %s is gone" name)))) |
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62 | |
63 | (defun mm-extern-url (handle) | |
64 | (erase-buffer) | |
65 | (let ((url (cdr (assq 'url (cdr (mm-handle-type handle))))) | |
66 | (name buffer-file-name) | |
67 | (coding-system-for-read mm-binary-coding-system)) | |
68 | (unless url | |
69 | (error "URL is not specified")) | |
23f87bed | 70 | (mm-disable-multibyte) |
3d73e841 | 71 | (mm-url-insert-file-contents url) |
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72 | (setq buffer-file-name name))) |
73 | ||
74 | (defun mm-extern-anon-ftp (handle) | |
75 | (erase-buffer) | |
76 | (let* ((params (cdr (mm-handle-type handle))) | |
77 | (name (cdr (assq 'name params))) | |
78 | (site (cdr (assq 'site params))) | |
79 | (directory (cdr (assq 'directory params))) | |
80 | (mode (cdr (assq 'mode params))) | |
81 | (path (concat "/" (or mm-extern-anonymous | |
82 | (read-string (format "ID for %s: " site))) | |
83 | "@" site ":" directory "/" name)) | |
84 | (coding-system-for-read mm-binary-coding-system)) | |
85 | (unless name | |
86 | (error "The filename is not specified")) | |
87 | (mm-disable-multibyte) | |
88 | (mm-insert-file-contents path nil nil nil nil t))) | |
89 | ||
90 | (defun mm-extern-ftp (handle) | |
91 | (let (mm-extern-anonymous) | |
92 | (mm-extern-anon-ftp handle))) | |
93 | ||
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94 | (declare-function message-goto-body "message" (&optional interactivep)) |
95 | ||
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96 | (defun mm-extern-mail-server (handle) |
97 | (require 'message) | |
98 | (let* ((params (cdr (mm-handle-type handle))) | |
99 | (server (cdr (assq 'server params))) | |
100 | (subject (or (cdr (assq 'subject params)) "none")) | |
101 | (buf (current-buffer)) | |
102 | info) | |
5dab7628 | 103 | (if (y-or-n-p (format "Send a request message to %s? " server)) |
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104 | (save-window-excursion |
105 | (message-mail server subject) | |
106 | (message-goto-body) | |
107 | (delete-region (point) (point-max)) | |
108 | (insert-buffer-substring buf) | |
109 | (message "Requesting external body...") | |
110 | (message-send-and-exit) | |
111 | (setq info "Request is sent.") | |
112 | (message info)) | |
113 | (setq info "Request is not sent.")) | |
114 | (goto-char (point-min)) | |
115 | (insert "[" info "]\n\n"))) | |
116 | ||
117 | ;;;###autoload | |
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118 | (defun mm-extern-cache-contents (handle) |
119 | "Put the external-body part of HANDLE into its cache." | |
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120 | (let* ((access-type (cdr (assq 'access-type |
121 | (cdr (mm-handle-type handle))))) | |
122 | (func (cdr (assq (intern | |
123 | (downcase | |
124 | (or access-type | |
125 | (error "Couldn't find access type")))) | |
126 | mm-extern-function-alist))) | |
3d73e841 | 127 | handles) |
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128 | (unless func |
129 | (error "Access type (%s) is not supported" access-type)) | |
130 | (mm-with-part handle | |
131 | (goto-char (point-max)) | |
132 | (insert "\n\n") | |
133 | ;; It should be just a single MIME handle. | |
134 | (setq handles (mm-dissect-buffer t))) | |
135 | (unless (bufferp (car handles)) | |
136 | (mm-destroy-parts handles) | |
137 | (error "Multipart external body is not supported")) | |
3d73e841 | 138 | (with-current-buffer (mm-handle-buffer handles) |
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139 | (let (good) |
140 | (unwind-protect | |
141 | (progn | |
142 | (funcall func handle) | |
143 | (setq good t)) | |
144 | (unless good | |
145 | (mm-destroy-parts handles)))) | |
146 | (mm-handle-set-cache handle handles)) | |
147 | (setq gnus-article-mime-handles | |
148 | (mm-merge-handles gnus-article-mime-handles handles)))) | |
149 | ||
150 | ;;;###autoload | |
151 | (defun mm-inline-external-body (handle &optional no-display) | |
152 | "Show the external-body part of HANDLE. | |
153 | This function replaces the buffer of HANDLE with a buffer contains | |
154 | the entire message. | |
155 | If NO-DISPLAY is nil, display it. Otherwise, do nothing after replacing." | |
156 | (unless (mm-handle-cache handle) | |
157 | (mm-extern-cache-contents handle)) | |
158 | (unless no-display | |
159 | (save-excursion | |
160 | (save-restriction | |
161 | (narrow-to-region (point) (point)) | |
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162 | (mm-display-part (mm-handle-cache handle)))) |
163 | ;; Move undisplayer added to the cached handle to the parent. | |
164 | (mm-handle-set-undisplayer | |
165 | handle (mm-handle-undisplayer (mm-handle-cache handle))) | |
166 | (mm-handle-set-undisplayer (mm-handle-cache handle) nil))) | |
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167 | |
168 | (provide 'mm-extern) | |
169 | ||
23f87bed | 170 | ;;; mm-extern.el ends here |