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.
29 (eval-when-compile (require 'cl))
37 ;; This is just to shut up the byte-compiler.
38 (defalias 'nndraft-request-group 'ignore))
43 (defvoo nndraft-directory (nnheader-concat gnus-directory "drafts/")
44 "Where nndraft will store its files."
49 (defvoo nndraft-current-group "" nil nnmh-current-group)
50 (defvoo nndraft-get-new-mail nil nil nnmh-get-new-mail)
51 (defvoo nndraft-current-directory nil nil nnmh-current-directory)
53 (defconst nndraft-version "nndraft 1.0")
54 (defvoo nndraft-status-string "" nil nnmh-status-string)
58 ;;; Interface functions.
60 (nnoo-define-basics nndraft)
62 (deffoo nndraft-open-server (server &optional defs)
63 (nnoo-change-server 'nndraft server defs)
65 ((not (file-exists-p nndraft-directory))
66 (nndraft-close-server)
67 (nnheader-report 'nndraft "No such file or directory: %s"
69 ((not (file-directory-p (file-truename nndraft-directory)))
70 (nndraft-close-server)
71 (nnheader-report 'nndraft "Not a directory: %s" nndraft-directory))
73 (nnheader-report 'nndraft "Opened server %s using directory %s"
74 server nndraft-directory)
77 (deffoo nndraft-retrieve-headers (articles &optional group server fetch-old)
78 (nndraft-possibly-change-group group)
80 (set-buffer nntp-server-buffer)
83 ;; We don't support fetching by Message-ID.
84 (if (stringp (car articles))
87 (narrow-to-region (point) (point))
88 (when (nndraft-request-article
89 (setq article (pop articles)) group server (current-buffer))
90 (goto-char (point-min))
91 (if (search-forward "\n\n" nil t)
93 (goto-char (point-max)))
94 (delete-region (point) (point-max))
95 (goto-char (point-min))
96 (insert (format "221 %d Article retrieved.\n" article))
98 (goto-char (point-max))
101 (nnheader-fold-continuation-lines)
104 (deffoo nndraft-request-article (id &optional group server buffer)
105 (nndraft-possibly-change-group group)
107 ;; We get the newest file of the auto-saved file and the
109 (let* ((file (nndraft-article-filename id))
110 (auto (nndraft-auto-save-file-name file))
111 (newest (if (file-newer-than-file-p file auto) file auto))
112 (nntp-server-buffer (or buffer nntp-server-buffer)))
113 (when (and (file-exists-p newest)
114 (let ((nnmail-file-coding-system nnheader-text-coding-system))
115 (nnmail-find-file newest)))
117 (set-buffer nntp-server-buffer)
118 (goto-char (point-min))
119 ;; If there's a mail header separator in this file,
121 (when (re-search-forward
122 (concat "^" mail-header-separator "$") nil t)
123 (replace-match "" t t)))
126 (deffoo nndraft-request-restore-buffer (article &optional group server)
127 "Request a new buffer that is restored to the state of ARTICLE."
128 (nndraft-possibly-change-group group)
129 (when (nndraft-request-article article group server (current-buffer))
130 (message-remove-header "xref")
131 (message-remove-header "lines")
132 (message-remove-header "date")
135 (deffoo nndraft-request-update-info (group info &optional server)
136 (nndraft-possibly-change-group group)
139 (gnus-update-read-articles (gnus-group-prefixed-name group '(nndraft ""))
140 (nndraft-articles) t))
141 (let ((marks (nth 3 info)))
143 ;; Nix out all marks except the `unsend'-able article marks.
144 (setcar (nthcdr 3 info)
145 (if (assq 'unsend marks)
146 (list (assq 'unsend marks))
150 (deffoo nndraft-request-associate-buffer (group)
151 "Associate the current buffer with some article in the draft group."
152 (nndraft-open-server "")
153 (nndraft-request-group group)
154 (nndraft-possibly-change-group group)
155 (let ((gnus-verbose-backends nil)
156 (buf (current-buffer))
159 (insert-buffer-substring buf)
160 (setq article (nndraft-request-accept-article
161 group (nnoo-current-server 'nndraft) t 'noinsert)
162 file (nndraft-article-filename article)))
163 (setq buffer-file-name (expand-file-name file)
164 buffer-auto-save-file-name (make-auto-save-file-name))
165 (clear-visited-file-modtime)
168 (deffoo nndraft-request-expire-articles (articles group &optional server force)
169 (nndraft-possibly-change-group group)
170 (let* ((nnmh-allow-delete-final t)
171 (res (nnoo-parent-function 'nndraft
172 'nnmh-request-expire-articles
173 (list articles group server force)))
175 ;; Delete all the "state" files of articles that have been expired.
177 (unless (memq (setq article (pop articles)) res)
178 (let ((auto (nndraft-auto-save-file-name
179 (nndraft-article-filename article))))
180 (when (file-exists-p auto)
181 (funcall nnmail-delete-file-function auto)))
183 (let ((kept-new-versions 1)
184 (kept-old-versions 0))
185 (find-backup-file-name
186 (nndraft-article-filename article))))
187 (when (file-exists-p backup)
188 (funcall nnmail-delete-file-function backup)))))
191 (deffoo nndraft-request-accept-article (group &optional server last noinsert)
192 (nndraft-possibly-change-group group)
193 (let ((gnus-verbose-backends nil))
194 (nnoo-parent-function 'nndraft 'nnmh-request-accept-article
195 (list group server last noinsert))))
197 (deffoo nndraft-request-replace-article (article group buffer)
198 (nndraft-possibly-change-group group)
199 (let ((nnmail-file-coding-system nnheader-text-coding-system))
200 (nnoo-parent-function 'nndraft 'nnmh-request-replace-article
201 (list article group buffer))))
203 (deffoo nndraft-request-create-group (group &optional server args)
204 (nndraft-possibly-change-group group)
205 (if (file-exists-p nndraft-current-directory)
206 (if (file-directory-p nndraft-current-directory)
211 (gnus-make-directory nndraft-current-directory)
216 ;;; Low-Level Interface
218 (defun nndraft-possibly-change-group (group)
220 (not (equal group nndraft-current-group)))
221 (nndraft-open-server "")
222 (setq nndraft-current-group group)
223 (setq nndraft-current-directory
224 (nnheader-concat nndraft-directory group))))
226 (defun nndraft-article-filename (article &rest args)
228 (file-name-as-directory nndraft-current-directory)
229 (int-to-string article)
232 (defun nndraft-auto-save-file-name (file)
236 (set-buffer (get-buffer-create " *draft tmp*"))
237 (setq buffer-file-name file)
238 (make-auto-save-file-name))
239 (kill-buffer (current-buffer)))))
241 (defun nndraft-articles ()
242 "Return the list of messages in the group."
243 (gnus-make-directory nndraft-current-directory)
245 (mapcar 'string-to-int
246 (directory-files nndraft-current-directory nil "\\`[0-9]+\\'" t))
251 nnmh-retrieve-headers
255 nnmh-request-newsgroups
256 nnmh-request-move-article))
260 ;;; nndraft.el ends here