(nnml-generate-nov-databases-directory): Document no-active
[gnus] / lisp / nndraft.el
index 59e54a7..f7ab938 100644 (file)
@@ -1,7 +1,9 @@
 ;;; nndraft.el --- draft article access for Gnus
-;; Copyright (C) 1995,96,97 Free Software Foundation, Inc.
 
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+;;   2004, 2005, 2006 Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news
 
 ;; This file is part of GNU Emacs.
@@ -18,8 +20,8 @@
 
 ;; You should have received a copy of the GNU General Public License
 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
 ;;; Commentary:
 
 (require 'gnus-start)
 (require 'nnmh)
 (require 'nnoo)
+(require 'mm-util)
 (eval-when-compile (require 'cl))
 
 (nnoo-declare nndraft
   nnmh)
 
-(defvoo nndraft-directory (nnheader-concat message-directory "drafts/")
+(defvoo nndraft-directory (nnheader-concat gnus-directory "drafts/")
   "Where nndraft will store its files."
-  nnmh-current-directory)
+  nnmh-directory)
 
 \f
 
 (defvoo nndraft-current-group "" nil nnmh-current-group)
-(defvoo nndraft-top-directory nil nil nnmh-directory)
 (defvoo nndraft-get-new-mail nil nil nnmh-get-new-mail)
+(defvoo nndraft-current-directory nil nil nnmh-current-directory)
 
 (defconst nndraft-version "nndraft 1.0")
-(defvoo nndraft-status-string "" nnmh-status-string)
+(defvoo nndraft-status-string "" nil nnmh-status-string)
 
 \f
 
 (nnoo-define-basics nndraft)
 
 (deffoo nndraft-open-server (server &optional defs)
-  (push `(nndraft-current-group
-         ,(file-name-nondirectory (directory-file-name nndraft-directory)))
-       defs)
-  (push `(nndraft-top-directory
-         ,(file-name-directory (directory-file-name nndraft-directory)))
-       defs)
   (nnoo-change-server 'nndraft server defs)
   (cond
    ((not (file-exists-p nndraft-directory))
     t)))
 
 (deffoo nndraft-retrieve-headers (articles &optional group server fetch-old)
+  (nndraft-possibly-change-group group)
   (save-excursion
     (set-buffer nntp-server-buffer)
     (erase-buffer)
-    (let* ((buf (get-buffer-create " *draft headers*"))
-          article)
-      (set-buffer buf)
-      (buffer-disable-undo (current-buffer))
-      (erase-buffer)
+    (let* (article)
       ;; We don't support fetching by Message-ID.
       (if (stringp (car articles))
          'headers
        (while articles
-         (set-buffer buf)
+         (narrow-to-region (point) (point))
          (when (nndraft-request-article
                 (setq article (pop articles)) group server (current-buffer))
            (goto-char (point-min))
                (forward-line -1)
              (goto-char (point-max)))
            (delete-region (point) (point-max))
-           (set-buffer nntp-server-buffer)
-           (goto-char (point-max))
+           (goto-char (point-min))
            (insert (format "221 %d Article retrieved.\n" article))
-           (insert-buffer-substring buf)
+           (widen)
+           (goto-char (point-max))
            (insert ".\n")))
 
        (nnheader-fold-continuation-lines)
        'headers))))
 
 (deffoo nndraft-request-article (id &optional group server buffer)
+  (nndraft-possibly-change-group group)
   (when (numberp id)
     ;; We get the newest file of the auto-saved file and the
     ;; "real" file.
           (newest (if (file-newer-than-file-p file auto) file auto))
           (nntp-server-buffer (or buffer nntp-server-buffer)))
       (when (and (file-exists-p newest)
-                (nnmail-find-file newest))
+                (let ((nnmail-file-coding-system
+                       (if (file-newer-than-file-p file auto)
+                           (if (member group '("drafts" "delayed"))
+                               message-draft-coding-system
+                             mm-text-coding-system)
+                         mm-auto-save-coding-system)))
+                  (nnmail-find-file newest)))
        (save-excursion
          (set-buffer nntp-server-buffer)
          (goto-char (point-min))
          ;; If there's a mail header separator in this file,
          ;; we remove it.
          (when (re-search-forward
-                (concat "^" mail-header-separator "$") nil t)
+                (concat "^" (regexp-quote mail-header-separator) "$") nil t)
            (replace-match "" t t)))
        t))))
 
 (deffoo nndraft-request-restore-buffer (article &optional group server)
   "Request a new buffer that is restored to the state of ARTICLE."
+  (nndraft-possibly-change-group group)
   (when (nndraft-request-article article group server (current-buffer))
-    (let ((gnus-verbose-backends nil))
-      (nndraft-request-expire-articles (list article) group server t))
+    (message-remove-header "xref")
+    (message-remove-header "lines")
+    ;; Articles in nndraft:queue are considered as sent messages.  The
+    ;; Date field should be the time when they are sent.
+    ;;(message-remove-header "date")
     t))
 
 (deffoo nndraft-request-update-info (group info &optional server)
-  (setcar (cddr info) nil)
-  (let (marks)
-    (when (setq marks (nth 3 info))
+  (nndraft-possibly-change-group group)
+  (gnus-info-set-read
+   info
+   (gnus-update-read-articles (gnus-group-prefixed-name group '(nndraft ""))
+                             (nndraft-articles) t))
+  (let ((marks (nth 3 info)))
+    (when marks
+      ;; Nix out all marks except the `unsend'-able article marks.
       (setcar (nthcdr 3 info)
              (if (assq 'unsend marks)
                  (list (assq 'unsend marks))
                nil))))
   t)
 
+(defun nndraft-generate-headers ()
+  (save-excursion
+    (message-generate-headers
+     (message-headers-to-generate
+      message-required-headers message-draft-headers nil))))
+
 (deffoo nndraft-request-associate-buffer (group)
   "Associate the current buffer with some article in the draft group."
+  (nndraft-open-server "")
+  (nndraft-request-group group)
+  (nndraft-possibly-change-group group)
   (let ((gnus-verbose-backends nil)
        (buf (current-buffer))
-        article file)
-    (nnheader-temp-write nil
-      (insert-buffer buf)
-      (setq article (cdr (nndraft-request-accept-article
-                         group (nnoo-current-server 'nndraft) t 'noinsert)))
-      (setq file (nndraft-article-filename article)))
-    (setq buffer-file-name file)
-    (setq buffer-auto-save-file-name (make-auto-save-file-name))
+       article file)
+    (with-temp-buffer
+      (insert-buffer-substring buf)
+      (setq article (nndraft-request-accept-article
+                    group (nnoo-current-server 'nndraft) t 'noinsert)
+           file (nndraft-article-filename article)))
+    (setq buffer-file-name (expand-file-name file)
+         buffer-auto-save-file-name (make-auto-save-file-name))
     (clear-visited-file-modtime)
+    (let ((hook (if (boundp 'write-contents-functions)
+                   'write-contents-functions
+                 'write-contents-hooks)))
+      (gnus-make-local-hook hook)
+      (add-hook hook 'nndraft-generate-headers nil t))
     article))
 
+(deffoo nndraft-request-group (group &optional server dont-check)
+  (nndraft-possibly-change-group group)
+  (unless dont-check
+    (let* ((pathname (nnmail-group-pathname group nndraft-directory))
+          (file-name-coding-system nnmail-pathname-coding-system)
+          dir file)
+      (nnheader-re-read-dir pathname)
+      (setq dir (mapcar (lambda (name) (string-to-number (substring name 1)))
+                       (ignore-errors (directory-files
+                                       pathname nil "^#[0-9]+#$" t))))
+      (dolist (n dir)
+       (unless (file-exists-p
+                (setq file (expand-file-name (int-to-string n) pathname)))
+         (rename-file (nndraft-auto-save-file-name file) file)))))
+  (nnoo-parent-function 'nndraft
+                       'nnmh-request-group
+                       (list group server dont-check)))
+
+(deffoo nndraft-request-move-article (article group server accept-form 
+                                     &optional last move-is-internal)
+  (nndraft-possibly-change-group group)
+  (let ((buf (get-buffer-create " *nndraft move*"))
+       result)
+    (and
+     (nndraft-request-article article group server)
+     (save-excursion
+       (set-buffer buf)
+       (erase-buffer)
+       (insert-buffer-substring nntp-server-buffer)
+       (setq result (eval accept-form))
+       (kill-buffer (current-buffer))
+       result)
+     (null (nndraft-request-expire-articles (list article) group server 'force))
+     result)))
+
 (deffoo nndraft-request-expire-articles (articles group &optional server force)
+  (nndraft-possibly-change-group group)
   (let* ((nnmh-allow-delete-final t)
-        (res (nndraft-execute-nnmh-command
-              `(nnmh-request-expire-articles
-                ',articles group ,server ,force)))
+        (res (nnoo-parent-function 'nndraft
+                                   'nnmh-request-expire-articles
+                                   (list articles group server force)))
         article)
     ;; Delete all the "state" files of articles that have been expired.
     (while articles
        (let ((auto (nndraft-auto-save-file-name
                     (nndraft-article-filename article))))
          (when (file-exists-p auto)
-           (funcall nnmail-delete-file-function auto)))))
+           (funcall nnmail-delete-file-function auto)))
+       (dolist (backup
+                (let ((kept-new-versions 1)
+                      (kept-old-versions 0))
+                  (find-backup-file-name
+                   (nndraft-article-filename article))))
+         (when (file-exists-p backup)
+           (funcall nnmail-delete-file-function backup)))))
     res))
 
 (deffoo nndraft-request-accept-article (group &optional server last noinsert)
+  (nndraft-possibly-change-group group)
   (let ((gnus-verbose-backends nil))
-    (nndraft-execute-nnmh-command
-     `(nnmh-request-accept-article group ,server ,last noinsert))))
+    (nnoo-parent-function 'nndraft 'nnmh-request-accept-article
+                         (list group server last noinsert))))
+
+(deffoo nndraft-request-replace-article (article group buffer)
+  (nndraft-possibly-change-group group)
+  (let ((nnmail-file-coding-system
+        (if (member group '("drafts" "delayed"))
+            message-draft-coding-system
+          mm-text-coding-system)))
+    (nnoo-parent-function 'nndraft 'nnmh-request-replace-article
+                         (list article group buffer))))
 
 (deffoo nndraft-request-create-group (group &optional server args)
-  (if (file-exists-p nndraft-directory)
-      (if (file-directory-p nndraft-directory)
+  (nndraft-possibly-change-group group)
+  (if (file-exists-p nndraft-current-directory)
+      (if (file-directory-p nndraft-current-directory)
          t
        nil)
     (condition-case ()
        (progn
-         (gnus-make-directory nndraft-directory)
+         (gnus-make-directory nndraft-current-directory)
          t)
       (file-error nil))))
 
 \f
 ;;; Low-Level Interface
 
-(defun nndraft-execute-nnmh-command (command)
-  (let* ((dir (directory-file-name (expand-file-name nndraft-directory)))
-        (group (file-name-nondirectory dir))
-        (nnmh-directory (file-name-directory dir))
-        (nnmail-keep-last-article nil)
-        (nnmh-get-new-mail nil))
-    (eval command)))
+(defun nndraft-possibly-change-group (group)
+  (when (and group
+            (not (equal group nndraft-current-group)))
+    (nndraft-open-server "")
+    (setq nndraft-current-group group)
+    (setq nndraft-current-directory
+         (nnheader-concat nndraft-directory group))))
 
 (defun nndraft-article-filename (article &rest args)
   (apply 'concat
-        (file-name-as-directory nndraft-directory)
+        (file-name-as-directory nndraft-current-directory)
         (int-to-string article)
         args))
 
          (make-auto-save-file-name))
       (kill-buffer (current-buffer)))))
 
-(nnoo-map-functions nndraft
-  (nnmh-retrieve-headers 0 nndraft-current-group 0 0)
-  (nnmh-request-group nndraft-current-group 0 0)
-  (nnmh-close-group nndraft-current-group 0)
-  (nnmh-request-list (nnoo-current-server 'nndraft) nndraft-directory)
-  (nnmh-request-newsgroups (nnoo-current-server 'nndraft) nndraft-directory))
+(defun nndraft-articles ()
+  "Return the list of messages in the group."
+  (gnus-make-directory nndraft-current-directory)
+  (sort
+   (mapcar 'string-to-number
+          (directory-files nndraft-current-directory nil "\\`[0-9]+\\'" t))
+   '<))
+
+(nnoo-import nndraft
+  (nnmh
+   nnmh-retrieve-headers
+   nnmh-request-group
+   nnmh-close-group
+   nnmh-request-list
+   nnmh-request-newsgroups))
 
 (provide 'nndraft)
 
+;;; arch-tag: 3ce26ca0-41cb-48b1-8703-4dad35e188aa
 ;;; nndraft.el ends here