1 ;;; nndraft.el --- draft article access for Gnus
2 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
3 ;; Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs 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 ;; GNU Emacs 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.
41 (defvoo nndraft-directory (nnheader-concat gnus-directory "drafts/")
42 "Where nndraft will store its files."
47 (defvoo nndraft-current-group "" nil nnmh-current-group)
48 (defvoo nndraft-get-new-mail nil nil nnmh-get-new-mail)
49 (defvoo nndraft-current-directory nil nil nnmh-current-directory)
51 (defconst nndraft-version "nndraft 1.0")
52 (defvoo nndraft-status-string "" nil nnmh-status-string)
56 ;;; Interface functions.
58 (nnoo-define-basics nndraft)
60 (deffoo nndraft-open-server (server &optional defs)
61 (nnoo-change-server 'nndraft server defs)
63 ((not (file-exists-p nndraft-directory))
64 (nndraft-close-server)
65 (nnheader-report 'nndraft "No such file or directory: %s"
67 ((not (file-directory-p (file-truename nndraft-directory)))
68 (nndraft-close-server)
69 (nnheader-report 'nndraft "Not a directory: %s" nndraft-directory))
71 (nnheader-report 'nndraft "Opened server %s using directory %s"
72 server nndraft-directory)
75 (deffoo nndraft-retrieve-headers (articles &optional group server fetch-old)
76 (nndraft-possibly-change-group group)
78 (set-buffer nntp-server-buffer)
81 ;; We don't support fetching by Message-ID.
82 (if (stringp (car articles))
85 (narrow-to-region (point) (point))
86 (when (nndraft-request-article
87 (setq article (pop articles)) group server (current-buffer))
88 (goto-char (point-min))
89 (if (search-forward "\n\n" nil t)
91 (goto-char (point-max)))
92 (delete-region (point) (point-max))
93 (goto-char (point-min))
94 (insert (format "221 %d Article retrieved.\n" article))
96 (goto-char (point-max))
99 (nnheader-fold-continuation-lines)
102 (deffoo nndraft-request-article (id &optional group server buffer)
103 (nndraft-possibly-change-group group)
105 ;; We get the newest file of the auto-saved file and the
107 (let* ((file (nndraft-article-filename id))
108 (auto (nndraft-auto-save-file-name file))
109 (newest (if (file-newer-than-file-p file auto) file auto))
110 (nntp-server-buffer (or buffer nntp-server-buffer)))
111 (when (and (file-exists-p newest)
112 (let ((nnmail-file-coding-system
113 (if (file-newer-than-file-p file auto)
114 (if (equal group "drafts")
115 message-draft-coding-system
116 mm-text-coding-system)
117 mm-auto-save-coding-system)))
118 (nnmail-find-file newest)))
120 (set-buffer nntp-server-buffer)
121 (goto-char (point-min))
122 ;; If there's a mail header separator in this file,
124 (when (re-search-forward
125 (concat "^" mail-header-separator "$") nil t)
126 (replace-match "" t t)))
129 (deffoo nndraft-request-restore-buffer (article &optional group server)
130 "Request a new buffer that is restored to the state of ARTICLE."
131 (nndraft-possibly-change-group group)
132 (when (nndraft-request-article article group server (current-buffer))
133 (message-remove-header "xref")
134 (message-remove-header "lines")
135 (message-remove-header "date")
138 (deffoo nndraft-request-update-info (group info &optional server)
139 (nndraft-possibly-change-group group)
142 (gnus-update-read-articles (gnus-group-prefixed-name group '(nndraft ""))
143 (nndraft-articles) t))
144 (let ((marks (nth 3 info)))
146 ;; Nix out all marks except the `unsend'-able article marks.
147 (setcar (nthcdr 3 info)
148 (if (assq 'unsend marks)
149 (list (assq 'unsend marks))
153 (deffoo nndraft-request-associate-buffer (group)
154 "Associate the current buffer with some article in the draft group."
155 (nndraft-open-server "")
156 (nndraft-request-group group)
157 (nndraft-possibly-change-group group)
158 (let ((gnus-verbose-backends nil)
159 (buf (current-buffer))
162 (insert-buffer-substring buf)
163 (setq article (nndraft-request-accept-article
164 group (nnoo-current-server 'nndraft) t 'noinsert)
165 file (nndraft-article-filename article)))
166 (setq buffer-file-name (expand-file-name file)
167 buffer-auto-save-file-name (make-auto-save-file-name))
168 (clear-visited-file-modtime)
171 (deffoo nndraft-request-group (group &optional server dont-check)
172 (nndraft-possibly-change-group group)
174 (let* ((pathname (nnmail-group-pathname group nndraft-directory))
175 (file-name-coding-system nnmail-pathname-coding-system)
177 (nnheader-re-read-dir pathname)
178 (setq dir (mapcar (lambda (name) (string-to-int (substring name 1)))
179 (directory-files pathname nil "^#[0-9]+#$" t)))
181 (unless (file-exists-p
182 (setq file (expand-file-name (int-to-string n) pathname)))
183 (rename-file (let ((buffer-file-name file))
184 (make-auto-save-file-name)) file)))))
185 (nnoo-parent-function 'nndraft
187 (list group server dont-check)))
189 (deffoo nndraft-request-expire-articles (articles group &optional server force)
190 (nndraft-possibly-change-group group)
191 (let* ((nnmh-allow-delete-final t)
192 (res (nnoo-parent-function 'nndraft
193 'nnmh-request-expire-articles
194 (list articles group server force)))
196 ;; Delete all the "state" files of articles that have been expired.
198 (unless (memq (setq article (pop articles)) res)
199 (let ((auto (nndraft-auto-save-file-name
200 (nndraft-article-filename article))))
201 (when (file-exists-p auto)
202 (funcall nnmail-delete-file-function auto)))
204 (let ((kept-new-versions 1)
205 (kept-old-versions 0))
206 (find-backup-file-name
207 (nndraft-article-filename article))))
208 (when (file-exists-p backup)
209 (funcall nnmail-delete-file-function backup)))))
212 (deffoo nndraft-request-accept-article (group &optional server last noinsert)
213 (nndraft-possibly-change-group group)
214 (let ((gnus-verbose-backends nil))
215 (nnoo-parent-function 'nndraft 'nnmh-request-accept-article
216 (list group server last noinsert))))
218 (deffoo nndraft-request-replace-article (article group buffer)
219 (nndraft-possibly-change-group group)
220 (let ((nnmail-file-coding-system
221 (if (equal group "drafts")
222 mm-auto-save-coding-system
223 mm-text-coding-system)))
224 (nnoo-parent-function 'nndraft 'nnmh-request-replace-article
225 (list article group buffer))))
227 (deffoo nndraft-request-create-group (group &optional server args)
228 (nndraft-possibly-change-group group)
229 (if (file-exists-p nndraft-current-directory)
230 (if (file-directory-p nndraft-current-directory)
235 (gnus-make-directory nndraft-current-directory)
240 ;;; Low-Level Interface
242 (defun nndraft-possibly-change-group (group)
244 (not (equal group nndraft-current-group)))
245 (nndraft-open-server "")
246 (setq nndraft-current-group group)
247 (setq nndraft-current-directory
248 (nnheader-concat nndraft-directory group))))
250 (defun nndraft-article-filename (article &rest args)
252 (file-name-as-directory nndraft-current-directory)
253 (int-to-string article)
256 (defun nndraft-auto-save-file-name (file)
260 (set-buffer (get-buffer-create " *draft tmp*"))
261 (setq buffer-file-name file)
262 (make-auto-save-file-name))
263 (kill-buffer (current-buffer)))))
265 (defun nndraft-articles ()
266 "Return the list of messages in the group."
267 (gnus-make-directory nndraft-current-directory)
269 (mapcar 'string-to-int
270 (directory-files nndraft-current-directory nil "\\`[0-9]+\\'" t))
275 nnmh-retrieve-headers
279 nnmh-request-newsgroups
280 nnmh-request-move-article))
284 ;;; nndraft.el ends here