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 "$") nil t)
120 (replace-match "" t t)))
123 (deffoo nndraft-request-restore-buffer (article &optional group server)
124 "Request a new buffer that is restored to the state of ARTICLE."
125 (nndraft-possibly-change-group group)
126 (when (nndraft-request-article article group server (current-buffer))
127 (message-remove-header "xref")
128 (message-remove-header "lines")
129 ;; Articles in nndraft:queue are considered as sent messages. The
130 ;; Date field should be the time when they are sent.
131 ;;(message-remove-header "date")
134 (deffoo nndraft-request-update-info (group info &optional server)
135 (nndraft-possibly-change-group group)
138 (gnus-update-read-articles (gnus-group-prefixed-name group '(nndraft ""))
139 (nndraft-articles) t))
140 (let ((marks (nth 3 info)))
142 ;; Nix out all marks except the `unsend'-able article marks.
143 (setcar (nthcdr 3 info)
144 (if (assq 'unsend marks)
145 (list (assq 'unsend marks))
149 (deffoo nndraft-request-associate-buffer (group)
150 "Associate the current buffer with some article in the draft group."
151 (nndraft-open-server "")
152 (nndraft-request-group group)
153 (nndraft-possibly-change-group group)
154 (let ((gnus-verbose-backends nil)
155 (buf (current-buffer))
158 (insert-buffer-substring buf)
159 (setq article (nndraft-request-accept-article
160 group (nnoo-current-server 'nndraft) t 'noinsert)
161 file (nndraft-article-filename article)))
162 (setq buffer-file-name (expand-file-name file)
163 buffer-auto-save-file-name (make-auto-save-file-name))
164 (clear-visited-file-modtime)
167 (deffoo nndraft-request-group (group &optional server dont-check)
168 (nndraft-possibly-change-group group)
170 (let* ((pathname (nnmail-group-pathname group nndraft-directory))
171 (file-name-coding-system nnmail-pathname-coding-system)
173 (nnheader-re-read-dir pathname)
174 (setq dir (mapcar (lambda (name) (string-to-int (substring name 1)))
175 (directory-files pathname nil "^#[0-9]+#$" t)))
177 (unless (file-exists-p
178 (setq file (expand-file-name (int-to-string n) pathname)))
179 (rename-file (nndraft-auto-save-file-name file) file)))))
180 (nnoo-parent-function 'nndraft
182 (list group server dont-check)))
184 (deffoo nndraft-request-expire-articles (articles group &optional server force)
185 (nndraft-possibly-change-group group)
186 (let* ((nnmh-allow-delete-final t)
187 (res (nnoo-parent-function 'nndraft
188 'nnmh-request-expire-articles
189 (list articles group server force)))
191 ;; Delete all the "state" files of articles that have been expired.
193 (unless (memq (setq article (pop articles)) res)
194 (let ((auto (nndraft-auto-save-file-name
195 (nndraft-article-filename article))))
196 (when (file-exists-p auto)
197 (funcall nnmail-delete-file-function auto)))
199 (let ((kept-new-versions 1)
200 (kept-old-versions 0))
201 (find-backup-file-name
202 (nndraft-article-filename article))))
203 (when (file-exists-p backup)
204 (funcall nnmail-delete-file-function backup)))))
207 (deffoo nndraft-request-accept-article (group &optional server last noinsert)
208 (nndraft-possibly-change-group group)
209 (let ((gnus-verbose-backends nil))
210 (nnoo-parent-function 'nndraft 'nnmh-request-accept-article
211 (list group server last noinsert))))
213 (deffoo nndraft-request-replace-article (article group buffer)
214 (nndraft-possibly-change-group group)
215 (let ((nnmail-file-coding-system nnheader-text-coding-system))
216 (nnoo-parent-function 'nndraft 'nnmh-request-replace-article
217 (list article group buffer))))
219 (deffoo nndraft-request-create-group (group &optional server args)
220 (nndraft-possibly-change-group group)
221 (if (file-exists-p nndraft-current-directory)
222 (if (file-directory-p nndraft-current-directory)
227 (gnus-make-directory nndraft-current-directory)
232 ;;; Low-Level Interface
234 (defun nndraft-possibly-change-group (group)
236 (not (equal group nndraft-current-group)))
237 (nndraft-open-server "")
238 (setq nndraft-current-group group)
239 (setq nndraft-current-directory
240 (nnheader-concat nndraft-directory group))))
242 (defun nndraft-article-filename (article &rest args)
244 (file-name-as-directory nndraft-current-directory)
245 (int-to-string article)
248 (defun nndraft-auto-save-file-name (file)
252 (set-buffer (get-buffer-create " *draft tmp*"))
253 (setq buffer-file-name file)
254 (make-auto-save-file-name))
255 (kill-buffer (current-buffer)))))
257 (defun nndraft-articles ()
258 "Return the list of messages in the group."
259 (gnus-make-directory nndraft-current-directory)
261 (mapcar 'string-to-int
262 (directory-files nndraft-current-directory nil "\\`[0-9]+\\'" t))
267 nnmh-retrieve-headers
271 nnmh-request-newsgroups
272 nnmh-request-move-article))
276 ;;; nndraft.el ends here