1 ;;; nndraft.el --- draft article access for Gnus
2 ;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
36 ;; This is just to shut up the byte-compiler.
37 (fset 'nndraft-request-group 'ignore))
42 (defvoo nndraft-directory (nnheader-concat gnus-directory "drafts/")
43 "Where nndraft will store its files."
48 (defvoo nndraft-current-group "" nil nnmh-current-group)
49 (defvoo nndraft-get-new-mail nil nil nnmh-get-new-mail)
50 (defvoo nndraft-current-directory nil nil nnmh-current-directory)
52 (defconst nndraft-version "nndraft 1.0")
53 (defvoo nndraft-status-string "" nil nnmh-status-string)
57 ;;; Interface functions.
59 (nnoo-define-basics nndraft)
61 (deffoo nndraft-open-server (server &optional defs)
62 (nnoo-change-server 'nndraft server defs)
64 ((not (file-exists-p nndraft-directory))
65 (nndraft-close-server)
66 (nnheader-report 'nndraft "No such file or directory: %s"
68 ((not (file-directory-p (file-truename nndraft-directory)))
69 (nndraft-close-server)
70 (nnheader-report 'nndraft "Not a directory: %s" nndraft-directory))
72 (nnheader-report 'nndraft "Opened server %s using directory %s"
73 server nndraft-directory)
76 (deffoo nndraft-retrieve-headers (articles &optional group server fetch-old)
77 (nndraft-possibly-change-group group)
79 (set-buffer nntp-server-buffer)
82 ;; We don't support fetching by Message-ID.
83 (if (stringp (car articles))
86 (narrow-to-region (point) (point))
87 (when (nndraft-request-article
88 (setq article (pop articles)) group server (current-buffer))
89 (goto-char (point-min))
90 (if (search-forward "\n\n" nil t)
92 (goto-char (point-max)))
93 (delete-region (point) (point-max))
94 (goto-char (point-min))
95 (insert (format "221 %d Article retrieved.\n" article))
97 (goto-char (point-max))
100 (nnheader-fold-continuation-lines)
103 (deffoo nndraft-request-article (id &optional group server buffer)
104 (nndraft-possibly-change-group group)
106 ;; We get the newest file of the auto-saved file and the
108 (let* ((file (nndraft-article-filename id))
109 (auto (nndraft-auto-save-file-name file))
110 (newest (if (file-newer-than-file-p file auto) file auto))
111 (nntp-server-buffer (or buffer nntp-server-buffer)))
112 (when (and (file-exists-p newest)
113 (let ((nnmail-file-coding-system
114 (if (file-newer-than-file-p file auto)
115 (if (equal group "drafts")
116 message-draft-coding-system
117 mm-text-coding-system)
118 mm-auto-save-coding-system)))
119 (nnmail-find-file newest)))
121 (set-buffer nntp-server-buffer)
122 (goto-char (point-min))
123 ;; If there's a mail header separator in this file,
125 (when (re-search-forward
126 (concat "^" mail-header-separator "$") nil t)
127 (replace-match "" t t)))
130 (deffoo nndraft-request-restore-buffer (article &optional group server)
131 "Request a new buffer that is restored to the state of ARTICLE."
132 (nndraft-possibly-change-group group)
133 (when (nndraft-request-article article group server (current-buffer))
134 (message-remove-header "xref")
135 (message-remove-header "lines")
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))
145 (when (setq marks (nth 3 info))
146 (setcar (nthcdr 3 info)
147 (if (assq 'unsend marks)
148 (list (assq 'unsend marks))
152 (deffoo nndraft-request-associate-buffer (group)
153 "Associate the current buffer with some article in the draft group."
154 (nndraft-open-server "")
155 (nndraft-request-group group)
156 (nndraft-possibly-change-group group)
157 (let ((gnus-verbose-backends nil)
158 (buf (current-buffer))
161 (insert-buffer-substring buf)
162 (setq article (nndraft-request-accept-article
163 group (nnoo-current-server 'nndraft) t 'noinsert)
164 file (nndraft-article-filename article)))
165 (setq buffer-file-name (expand-file-name file)
166 buffer-auto-save-file-name (make-auto-save-file-name))
167 (clear-visited-file-modtime)
170 (deffoo nndraft-request-expire-articles (articles group &optional server force)
171 (nndraft-possibly-change-group group)
172 (let* ((nnmh-allow-delete-final t)
173 (res (nnoo-parent-function 'nndraft
174 'nnmh-request-expire-articles
175 (list articles group server force)))
177 ;; Delete all the "state" files of articles that have been expired.
179 (unless (memq (setq article (pop articles)) res)
180 (let ((auto (nndraft-auto-save-file-name
181 (nndraft-article-filename article))))
182 (when (file-exists-p auto)
183 (funcall nnmail-delete-file-function auto)))
185 (let ((kept-new-versions 1)
186 (kept-old-versions 0))
187 (find-backup-file-name
188 (nndraft-article-filename article))))
189 (when (file-exists-p backup)
190 (funcall nnmail-delete-file-function backup)))))
193 (deffoo nndraft-request-accept-article (group &optional server last noinsert)
194 (nndraft-possibly-change-group group)
195 (let ((gnus-verbose-backends nil))
196 (nnoo-parent-function 'nndraft 'nnmh-request-accept-article
197 (list group server last noinsert))))
199 (deffoo nndraft-request-create-group (group &optional server args)
200 (nndraft-possibly-change-group group)
201 (if (file-exists-p nndraft-current-directory)
202 (if (file-directory-p nndraft-current-directory)
207 (gnus-make-directory nndraft-current-directory)
212 ;;; Low-Level Interface
214 (defun nndraft-possibly-change-group (group)
216 (not (equal group nndraft-current-group)))
217 (nndraft-open-server "")
218 (setq nndraft-current-group group)
219 (setq nndraft-current-directory
220 (nnheader-concat nndraft-directory group))))
222 (defun nndraft-article-filename (article &rest args)
224 (file-name-as-directory nndraft-current-directory)
225 (int-to-string article)
228 (defun nndraft-auto-save-file-name (file)
232 (set-buffer (get-buffer-create " *draft tmp*"))
233 (setq buffer-file-name file)
234 (make-auto-save-file-name))
235 (kill-buffer (current-buffer)))))
237 (defun nndraft-articles ()
238 "Return the list of messages in the group."
239 (gnus-make-directory nndraft-current-directory)
241 (mapcar 'string-to-int
242 (directory-files nndraft-current-directory nil "\\`[0-9]+\\'" t))
247 nnmh-retrieve-headers
251 nnmh-request-newsgroups
252 nnmh-request-move-article
253 nnmh-request-replace-article))
257 ;;; nndraft.el ends here