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))
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 nnheader-text-coding-system))
112 (nnmail-find-file newest)))
114 (set-buffer nntp-server-buffer)
115 (goto-char (point-min))
116 ;; If there's a mail header separator in this file,
118 (when (re-search-forward
119 (concat "^" mail-header-separator "$") nil t)
120 (replace-match "" t t)))
123 (deffoo nndraft-request-restore-buffer (article &optional group server)
124 "Request a new buffer that is restored to the state of ARTICLE."
125 (nndraft-possibly-change-group group)
126 (when (nndraft-request-article article group server (current-buffer))
127 (message-remove-header "xref")
128 (message-remove-header "lines")
129 (message-remove-header "date")
132 (deffoo nndraft-request-update-info (group info &optional server)
133 (nndraft-possibly-change-group group)
136 (gnus-update-read-articles (gnus-group-prefixed-name group '(nndraft ""))
137 (nndraft-articles) t))
138 (let ((marks (nth 3 info)))
140 ;; Nix out all marks except the `unsend'-able article marks.
141 (setcar (nthcdr 3 info)
142 (if (assq 'unsend marks)
143 (list (assq 'unsend marks))
147 (deffoo nndraft-request-associate-buffer (group)
148 "Associate the current buffer with some article in the draft group."
149 (nndraft-open-server "")
150 (nndraft-request-group group)
151 (nndraft-possibly-change-group group)
152 (let ((gnus-verbose-backends nil)
153 (buf (current-buffer))
156 (insert-buffer-substring buf)
157 (setq article (nndraft-request-accept-article
158 group (nnoo-current-server 'nndraft) t 'noinsert)
159 file (nndraft-article-filename article)))
160 (setq buffer-file-name (expand-file-name file)
161 buffer-auto-save-file-name (make-auto-save-file-name))
162 (clear-visited-file-modtime)
165 (deffoo nndraft-request-group (group &optional server dont-check)
166 (nndraft-possibly-change-group group)
168 (let* ((pathname (nnmail-group-pathname group nndraft-directory))
169 (file-name-coding-system nnmail-pathname-coding-system)
171 (nnheader-re-read-dir pathname)
172 (setq dir (mapcar (lambda (name) (string-to-int (substring name 1)))
173 (directory-files pathname nil "^#[0-9]+#$" t)))
175 (unless (file-exists-p
176 (setq file (expand-file-name (int-to-string n) pathname)))
177 (rename-file (let ((buffer-file-name file))
178 (make-auto-save-file-name)) file)))))
179 (nnoo-parent-function 'nndraft
181 (list group server dont-check)))
183 (deffoo nndraft-request-expire-articles (articles group &optional server force)
184 (nndraft-possibly-change-group group)
185 (let* ((nnmh-allow-delete-final t)
186 (res (nnoo-parent-function 'nndraft
187 'nnmh-request-expire-articles
188 (list articles group server force)))
190 ;; Delete all the "state" files of articles that have been expired.
192 (unless (memq (setq article (pop articles)) res)
193 (let ((auto (nndraft-auto-save-file-name
194 (nndraft-article-filename article))))
195 (when (file-exists-p auto)
196 (funcall nnmail-delete-file-function auto)))
198 (let ((kept-new-versions 1)
199 (kept-old-versions 0))
200 (find-backup-file-name
201 (nndraft-article-filename article))))
202 (when (file-exists-p backup)
203 (funcall nnmail-delete-file-function backup)))))
206 (deffoo nndraft-request-accept-article (group &optional server last noinsert)
207 (nndraft-possibly-change-group group)
208 (let ((gnus-verbose-backends nil))
209 (nnoo-parent-function 'nndraft 'nnmh-request-accept-article
210 (list group server last noinsert))))
212 (deffoo nndraft-request-replace-article (article group buffer)
213 (nndraft-possibly-change-group group)
214 (let ((nnmail-file-coding-system nnheader-text-coding-system))
215 (nnoo-parent-function 'nndraft 'nnmh-request-replace-article
216 (list article group buffer))))
218 (deffoo nndraft-request-create-group (group &optional server args)
219 (nndraft-possibly-change-group group)
220 (if (file-exists-p nndraft-current-directory)
221 (if (file-directory-p nndraft-current-directory)
226 (gnus-make-directory nndraft-current-directory)
231 ;;; Low-Level Interface
233 (defun nndraft-possibly-change-group (group)
235 (not (equal group nndraft-current-group)))
236 (nndraft-open-server "")
237 (setq nndraft-current-group group)
238 (setq nndraft-current-directory
239 (nnheader-concat nndraft-directory group))))
241 (defun nndraft-article-filename (article &rest args)
243 (file-name-as-directory nndraft-current-directory)
244 (int-to-string article)
247 (defun nndraft-auto-save-file-name (file)
251 (set-buffer (get-buffer-create " *draft tmp*"))
252 (setq buffer-file-name file)
253 (make-auto-save-file-name))
254 (kill-buffer (current-buffer)))))
256 (defun nndraft-articles ()
257 "Return the list of messages in the group."
258 (gnus-make-directory nndraft-current-directory)
260 (mapcar 'string-to-int
261 (directory-files nndraft-current-directory nil "\\`[0-9]+\\'" t))
266 nnmh-retrieve-headers
270 nnmh-request-newsgroups
271 nnmh-request-move-article))
275 ;;; nndraft.el ends here