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.
35 (eval-when-compile (require 'cl))
40 (defvoo nndraft-directory (nnheader-concat gnus-directory "drafts/")
41 "Where nndraft will store its files."
46 (defvoo nndraft-current-group "" nil nnmh-current-group)
47 (defvoo nndraft-get-new-mail nil nil nnmh-get-new-mail)
48 (defvoo nndraft-current-directory nil nil nnmh-current-directory)
50 (defconst nndraft-version "nndraft 1.0")
51 (defvoo nndraft-status-string "" nil nnmh-status-string)
55 ;;; Interface functions.
57 (nnoo-define-basics nndraft)
59 (deffoo nndraft-open-server (server &optional defs)
60 (nnoo-change-server 'nndraft server defs)
62 ((not (file-exists-p nndraft-directory))
63 (nndraft-close-server)
64 (nnheader-report 'nndraft "No such file or directory: %s"
66 ((not (file-directory-p (file-truename nndraft-directory)))
67 (nndraft-close-server)
68 (nnheader-report 'nndraft "Not a directory: %s" nndraft-directory))
70 (nnheader-report 'nndraft "Opened server %s using directory %s"
71 server nndraft-directory)
74 (deffoo nndraft-retrieve-headers (articles &optional group server fetch-old)
75 (nndraft-possibly-change-group group)
77 (set-buffer nntp-server-buffer)
80 ;; We don't support fetching by Message-ID.
81 (if (stringp (car articles))
84 (narrow-to-region (point) (point))
85 (when (nndraft-request-article
86 (setq article (pop articles)) group server (current-buffer))
87 (goto-char (point-min))
88 (if (search-forward "\n\n" nil t)
90 (goto-char (point-max)))
91 (delete-region (point) (point-max))
92 (goto-char (point-min))
93 (insert (format "221 %d Article retrieved.\n" article))
95 (goto-char (point-max))
98 (nnheader-fold-continuation-lines)
101 (deffoo nndraft-request-article (id &optional group server buffer)
102 (nndraft-possibly-change-group group)
104 ;; We get the newest file of the auto-saved file and the
106 (let* ((file (nndraft-article-filename id))
107 (auto (nndraft-auto-save-file-name file))
108 (newest (if (file-newer-than-file-p file auto) file auto))
109 (nntp-server-buffer (or buffer nntp-server-buffer)))
110 (when (and (file-exists-p newest)
111 (let ((nnmail-file-coding-system
112 (if (file-newer-than-file-p file auto)
113 (if (equal group "drafts")
114 message-draft-coding-system
115 mm-text-coding-system)
116 mm-auto-save-coding-system)))
117 (nnmail-find-file newest)))
119 (set-buffer nntp-server-buffer)
120 (goto-char (point-min))
121 ;; If there's a mail header separator in this file,
123 (when (re-search-forward
124 (concat "^" mail-header-separator "$") nil t)
125 (replace-match "" t t)))
128 (deffoo nndraft-request-restore-buffer (article &optional group server)
129 "Request a new buffer that is restored to the state of ARTICLE."
130 (nndraft-possibly-change-group group)
131 (when (nndraft-request-article article group server (current-buffer))
132 (message-remove-header "xref")
133 (message-remove-header "lines")
134 ;; Articles in nndraft:queue are considered as sent messages. The
135 ;; Date field should be the time when they are sent.
136 ;;(message-remove-header "date")
139 (deffoo nndraft-request-update-info (group info &optional server)
140 (nndraft-possibly-change-group group)
143 (gnus-update-read-articles (gnus-group-prefixed-name group '(nndraft ""))
144 (nndraft-articles) t))
145 (let ((marks (nth 3 info)))
147 ;; Nix out all marks except the `unsend'-able article marks.
148 (setcar (nthcdr 3 info)
149 (if (assq 'unsend marks)
150 (list (assq 'unsend marks))
154 (deffoo nndraft-request-associate-buffer (group)
155 "Associate the current buffer with some article in the draft group."
156 (nndraft-open-server "")
157 (nndraft-request-group group)
158 (nndraft-possibly-change-group group)
159 (let ((gnus-verbose-backends nil)
160 (buf (current-buffer))
163 (insert-buffer-substring buf)
164 (setq article (nndraft-request-accept-article
165 group (nnoo-current-server 'nndraft) t 'noinsert)
166 file (nndraft-article-filename article)))
167 (setq buffer-file-name (expand-file-name file)
168 buffer-auto-save-file-name (make-auto-save-file-name))
169 (clear-visited-file-modtime)
172 (deffoo nndraft-request-group (group &optional server dont-check)
173 (nndraft-possibly-change-group group)
175 (let* ((pathname (nnmail-group-pathname group nndraft-directory))
176 (file-name-coding-system nnmail-pathname-coding-system)
178 (nnheader-re-read-dir pathname)
179 (setq dir (mapcar (lambda (name) (string-to-int (substring name 1)))
180 (directory-files pathname nil "^#[0-9]+#$" t)))
182 (unless (file-exists-p
183 (setq file (expand-file-name (int-to-string n) pathname)))
184 (rename-file (nndraft-auto-save-file-name file) 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