gnus-request-head: when gnus-override-method is set, allow the backend

[gnus] / lisp / gnus-int.el

diff --git a/lisp/gnus-int.el b/lisp/gnus-int.el
index 11b015b..bc3ba18 100644 (file)
--- a/lisp/gnus-int.el
+++ b/lisp/gnus-int.el
@@ -1,26 +1,24 @@
 ;;; gnus-int.el --- backend interface functions for Gnus
-;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
-;;        Free Software Foundation, Inc.
+
+;; Copyright (C) 1996-2012 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news
 
 ;; This file is part of GNU Emacs.
 
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs is free software: you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
 
 ;; GNU Emacs is distributed in the hope that it will be useful,
 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.         See the
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 ;; GNU General Public License for more details.
 
 ;; 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.
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 
@@ -32,36 +30,72 @@
 (require 'message)
 (require 'gnus-range)
 
+(autoload 'gnus-run-hook-with-args "gnus-util")
 (autoload 'gnus-agent-expire "gnus-agent")
 (autoload 'gnus-agent-regenerate-group "gnus-agent")
 (autoload 'gnus-agent-read-servers-validate-native "gnus-agent")
+(autoload 'gnus-agent-possibly-synchronize-flags-server "gnus-agent")
 
 (defcustom gnus-open-server-hook nil
   "Hook called just before opening connection to the news server."
   :group 'gnus-start
   :type 'hook)
 
+(defcustom gnus-after-set-mark-hook nil
+  "Hook called just after marks are set in a group."
+  :version "24.1"
+  :group 'gnus-start
+  :type 'hook)
+
+(defcustom gnus-before-update-mark-hook nil
+  "Hook called just before marks are updated in a group."
+  :version "24.1"
+  :group 'gnus-start
+  :type 'hook)
+
 (defcustom gnus-server-unopen-status nil
   "The default status if the server is not able to open.
 If the server is covered by Gnus agent, the possible values are
 `denied', set the server denied; `offline', set the server offline;
 nil, ask user.  If the server is not covered by Gnus agent, set the
 server denied."
-  :version "21.4"
+  :version "22.1"
   :group 'gnus-start
   :type '(choice (const :tag "Ask" nil)
                 (const :tag "Deny server" denied)
                 (const :tag "Unplug Agent" offline)))
 
-(defcustom gnus-servers-that-use-local-marks '(nntp)
-  "A list of backends that store marks locally.  This means that
-  the backend is used to set its marks even when unplugged."
-  :group 'gnus-start
-  :type '(repeat symbol))
+(defcustom gnus-nntp-server nil
+  "The name of the host running the NNTP server."
+  :group 'gnus-server
+  :type '(choice (const :tag "disable" nil)
+                string))
+(make-obsolete-variable 'gnus-nntp-server 'gnus-select-method "24.1")
 
 (defvar gnus-internal-registry-spool-current-method nil
   "The current method, for the registry.")
 
+
+(defun gnus-server-opened (gnus-command-method)
+  "Check whether a connection to GNUS-COMMAND-METHOD has been opened."
+  (unless (eq (gnus-server-status gnus-command-method)
+             'denied)
+    (when (stringp gnus-command-method)
+      (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
+    (funcall (inline (gnus-get-function gnus-command-method 'server-opened))
+            (nth 1 gnus-command-method))))
+
+(defun gnus-status-message (gnus-command-method)
+  "Return the status message from GNUS-COMMAND-METHOD.
+If GNUS-COMMAND-METHOD is a string, it is interpreted as a group
+name.  The method this group uses will be queried."
+  (let ((gnus-command-method
+        (if (stringp gnus-command-method)
+            (gnus-find-method-for-group gnus-command-method)
+          gnus-command-method)))
+    (funcall (gnus-get-function gnus-command-method 'status-message)
+            (nth 1 gnus-command-method))))
+
 ;;;
 ;;; Server Communication
 ;;;
@@ -74,16 +108,13 @@ If CONFIRM is non-nil, the user will be asked for an NNTP server."
        ;; Stream is already opened.
        nil
       ;; Open NNTP server.
-      (unless gnus-nntp-service
-       (setq gnus-nntp-server nil))
       (when confirm
        ;; Read se