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.
28 (eval-when-compile (require 'cl))
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 (nnmail-find-file newest))
115 (set-buffer nntp-server-buffer)
116 (goto-char (point-min))
117 ;; If there's a mail header separator in this file,
119 (when (re-search-forward
120 (concat "^" mail-header-separator "$") nil t)
121 (replace-match "" t t)))
124 (deffoo nndraft-request-restore-buffer (article &optional group server)
125 "Request a new buffer that is restored to the state of ARTICLE."
126 (nndraft-possibly-change-group group)
127 (when (nndraft-request-article article group server (current-buffer))
128 (message-remove-header "xref")
129 (message-remove-header "lines")
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-expire-articles (articles group &optional server force)
166 (nndraft-possibly-change-group group)
167 (let* ((nnmh-allow-delete-final t)
168 (res (nnoo-parent-function 'nndraft
169 'nnmh-request-expire-articles
170 (list articles group server force)))
172 ;; Delete all the "state" files of articles that have been expired.
174 (unless (memq (setq article (pop articles)) res)
175 (let ((auto (nndraft-auto-save-file-name
176 (nndraft-article-filename article))))
177 (when (file-exists-p auto)
178 (funcall nnmail-delete-file-function auto)))
180 (let ((kept-new-versions 1)
181 (kept-old-versions 0))
182 (find-backup-file-name
183 (nndraft-article-filename article))))
184 (when (file-exists-p backup)
185 (funcall nnmail-delete-file-function backup)))))
188 (deffoo nndraft-request-accept-article (group &optional server last noinsert)
189 (nndraft-possibly-change-group group)
190 (let ((gnus-verbose-backends nil))
191 (nnoo-parent-function 'nndraft 'nnmh-request-accept-article
192 (list group server last noinsert))))
194 (deffoo nndraft-request-create-group (group &optional server args)
195 (nndraft-possibly-change-group group)
196 (if (file-exists-p nndraft-current-directory)
197 (if (file-directory-p nndraft-current-directory)
202 (gnus-make-directory nndraft-current-directory)
207 ;;; Low-Level Interface
209 (defun nndraft-possibly-change-group (group)
211 (not (equal group nndraft-current-group)))
212 (nndraft-open-server "")
213 (setq nndraft-current-group group)
214 (setq nndraft-current-directory
215 (nnheader-concat nndraft-directory group))))
217 (defun nndraft-article-filename (article &rest args)
219 (file-name-as-directory nndraft-current-directory)
220 (int-to-string article)
223 (defun nndraft-auto-save-file-name (file)
227 (set-buffer (get-buffer-create " *draft tmp*"))
228 (setq buffer-file-name file)
229 (make-auto-save-file-name))
230 (kill-buffer (current-buffer)))))
232 (defun nndraft-articles ()
233 "Return the list of messages in the group."
234 (gnus-make-directory nndraft-current-directory)
236 (mapcar 'string-to-int
237 (directory-files nndraft-current-directory nil "\\`[0-9]+\\'" t))
242 nnmh-retrieve-headers
246 nnmh-request-newsgroups
247 nnmh-request-move-article
248 nnmh-request-replace-article))
252 ;;; nndraft.el ends here