1 ;;; elmo-file.el --- File interface for ELMO.
3 ;; Copyright (C) 2000 Yuuichi Teranishi <teranisi@gohome.org>
5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
6 ;; Keywords: mail, net news
8 ;; This file is part of ELMO (Elisp Library for Message Orchestration).
10 ;; This program is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; This program is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
31 (eval-when-compile (require 'cl))
37 (defun elmo-file-find (files)
38 "Return the first existing filename in the FILES."
41 (when (file-exists-p (car files))
42 (setq file (car files)
44 (setq files (cdr files)))
45 (and file (expand-file-name file))))
47 (defcustom elmo-file-command (exec-installed-p "file")
48 "*Program name of the file type detection command `file'."
49 :type '(string :tag "Program name of the file")
52 (defcustom elmo-file-command-argument
53 (let ((magic-file (elmo-file-find
54 '("/usr/share/magic.mime"
55 "/usr/share/file/magic.mime"
56 "/cygwin/usr/share/file/magic.mime"))))
57 (if magic-file (list "-m" magic-file)))
58 "*Argument list for the `file' command.
59 \(It should return the MIME content type\)"
60 :type '(repeat string)
63 (defcustom elmo-file-fetch-max-size (* 1024 1024)
64 "*Max size of the message fetching."
69 (luna-define-class elmo-file-folder (elmo-map-folder) (file-path))
70 (luna-define-internal-accessors 'elmo-file-folder))
72 (luna-define-method elmo-folder-initialize ((folder
75 (elmo-file-folder-set-file-path-internal folder name)
78 (luna-define-method elmo-folder-expand-msgdb-path ((folder
81 (elmo-replace-string-as-filename (elmo-folder-name-internal folder))
82 (expand-file-name "file" elmo-msgdb-directory)))
84 (defun elmo-file-make-date-string (attrs)
85 (let ((s (current-time-string (nth 5 attrs))))
86 (string-match "\\`\\([A-Z][a-z][a-z]\\) +[A-Z][a-z][a-z] +[0-9][0-9]? *[0-9][0-9]?:[0-9][0-9]:[0-9][0-9] *[0-9]?[0-9]?[0-9][0-9]"
88 (concat (elmo-match-string 1 s) ", "
89 (timezone-make-date-arpa-standard s (current-time-zone)))))
91 (defun elmo-file-detect-content-type (file)
92 "Return content-type of the FILE."
93 (if (or (not (file-exists-p file))
94 (file-directory-p file))
95 "application/octet-stream"
97 (setq type (mime-find-file-type file))
98 (if (and (string= (nth 0 type) "application")
99 (string= (nth 1 type) "octet-stream"))
100 (if (and elmo-file-command
101 elmo-file-command-argument)
103 (if (zerop (apply 'call-process elmo-file-command
104 nil `(,(current-buffer) nil)
105 nil (append elmo-file-command-argument
106 (list (expand-file-name file)))))
108 (goto-char (point-min))
109 (when (re-search-forward ": *" nil t)
110 (setq type (buffer-substring (match-end 0)
113 ((string= "empty" type)
114 "application/octet-stream")
115 ((string-match "text" type)
118 (car (split-string type)))))
119 "application/octet-stream"))
120 (concat (nth 0 type) "/" (nth 1 type)))
121 (concat (nth 0 type) "/" (nth 1 type))))))
123 (defun elmo-file-msgdb-create-entity (msgdb folder number)
124 "Create msgdb entity for the message in the FOLDER with NUMBER."
125 (let* ((file (elmo-message-file-name folder number))
126 (attrs (file-attributes file)))
127 (and (not (file-directory-p file))
129 (elmo-msgdb-make-message-entity
130 (elmo-msgdb-message-entity-handler msgdb)
131 :message-id (concat "<" (elmo-replace-in-string
136 :date (elmo-file-make-date-string attrs)
137 :subject (file-name-nondirectory file)
138 :from (concat (user-full-name (nth 2 attrs))
139 " <" (user-login-name (nth 2 attrs)) "@"
140 (system-name) ">")))))
142 (luna-define-method elmo-folder-msgdb-create ((folder elmo-file-folder)
144 (let ((new-msgdb (elmo-make-msgdb))
145 entity mark i percent num)
146 (setq num (length numlist))
148 (message "Creating msgdb...")
151 (elmo-file-msgdb-create-entity new-msgdb folder (car numlist)))
153 (elmo-msgdb-append-entity new-msgdb entity '(new unread)))
154 (when (> num elmo-display-progress-threshold)
156 (setq percent (/ (* i 100) num))
157 (elmo-display-progress
158 'elmo-folder-msgdb-create "Creating msgdb..."
160 (setq numlist (cdr numlist)))
161 (message "Creating msgdb...done")
164 (luna-define-method elmo-folder-message-file-p ((folder elmo-file-folder))
167 (luna-define-method elmo-message-file-name ((folder elmo-file-folder)
169 (expand-file-name (car (split-string
170 (elmo-map-message-location folder number)
172 (elmo-file-folder-file-path-internal folder)))
174 (luna-define-method elmo-folder-message-make-temp-file-p
175 ((folder elmo-file-folder))
178 (luna-define-method elmo-folder-diff ((folder elmo-file-folder))
181 (luna-define-method elmo-folder-message-make-temp-files ((folder
186 (let ((temp-dir (elmo-folder-make-temporary-directory folder))
187 (cur-number (if start-number 0)))
188 (dolist (number numbers)
190 (elmo-message-file-name folder number)
192 (int-to-string (if start-number (incf cur-number) number))
196 (luna-define-method elmo-map-message-fetch ((folder elmo-file-folder)
198 &optional section unseen)
199 (let ((file (expand-file-name (car (split-string location "/"))
200 (elmo-file-folder-file-path-internal folder)))
201 charset guess uid is-text)
202 (when (file-exists-p file)
203 (set-buffer-multibyte nil)
205 (insert-file-contents-as-binary file nil 0 elmo-file-fetch-max-size)
206 (unless (or (std11-field-body "To")
207 (std11-field-body "Cc")
208 (std11-field-body "Subject"))
209 (setq guess (elmo-file-detect-content-type file))
210 (setq is-text (string-match "^text/" guess))
212 (set-buffer-multibyte t)
213 (decode-coding-region
214 (point-min) (point-max)
215 elmo-mime-display-as-is-coding-system)
216 (setq charset (detect-mime-charset-region (point-min)
218 (goto-char (point-min))
219 (setq uid (nth 2 (file-attributes file)))
220 (insert "From: " (concat (user-full-name uid)
221 " <"(user-login-name uid) "@"
222 (system-name) ">") "\n")
223 (insert "Subject: " (file-name-nondirectory file) "\n")
225 (elmo-file-make-date-string (file-attributes file))
227 (insert "Message-ID: "
228 (concat "<" (elmo-replace-in-string file "/" ":")
229 "@" (system-name) ">\n"))
230 (insert "Content-Type: "
234 "; charset=" (upcase (symbol-name charset))))
236 "\nMIME-Version: 1.0\n\n")
238 (encode-mime-charset-region (point-min) (point-max) charset))
239 (set-buffer-multibyte nil))))))
241 (luna-define-method elmo-map-folder-list-message-locations
242 ((folder elmo-file-folder))
246 (when (not (file-directory-p file))
251 (nth 5 (file-attributes (expand-file-name
253 (elmo-file-folder-file-path-internal
256 (directory-files (elmo-file-folder-file-path-internal folder)))))
258 (luna-define-method elmo-folder-exists-p ((folder elmo-file-folder))
259 (file-directory-p (elmo-file-folder-file-path-internal folder)))
261 (luna-define-method elmo-folder-list-subfolders ((folder elmo-file-folder)
263 (when (file-directory-p (elmo-file-folder-file-path-internal folder))
265 (list (elmo-folder-name-internal folder))
269 (when (and (file-directory-p
272 (elmo-file-folder-file-path-internal folder)))
273 (not (string= file "."))
274 (not (string= file "..")))
275 (concat (elmo-folder-name-internal folder) "/" file)))
276 (directory-files (elmo-file-folder-file-path-internal
280 (product-provide (provide 'elmo-file) (require 'elmo-version))
282 ;;; elmo-file.el ends here