;;; gnus-int.el --- backend interface functions for Gnus
-;; Copyright (C) 1996,97,98 Free Software Foundation, Inc.
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000
+;; Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; This file is part of GNU Emacs.
;; gnus-open-server-hook might have opened it
(gnus-server-opened gnus-select-method)
(gnus-open-server gnus-select-method)
+ gnus-batch-mode
(gnus-y-or-n-p
(format
"%s (%s) open error: '%s'. Continue? "
(error "Attempted use of a nil select method"))
(when (stringp method)
(setq method (gnus-server-to-method method)))
- (let ((func (intern (format "%s-%s" (if gnus-agent
- (gnus-agent-get-function method)
- (car method))
- function))))
- ;; If the functions isn't bound, we require the backend in
- ;; question.
+ ;; Check cache of constructed names.
+ (let* ((method-sym (if gnus-agent
+ (gnus-agent-get-function method)
+ (car method)))
+ (method-fns (get method-sym 'gnus-method-functions))
+ (func (let ((method-fnlist-elt (assq function method-fns)))
+ (unless method-fnlist-elt
+ (setq method-fnlist-elt
+ (cons function
+ (intern (format "%s-%s" method-sym function))))
+ (put method-sym 'gnus-method-functions
+ (cons method-fnlist-elt method-fns)))
+ (cdr method-fnlist-elt))))
+ ;; Maybe complain if there is no function.
(unless (fboundp func)
+ (unless (car method)
+ (error "Trying to require a method that doesn't exist"))
(require (car method))
- (when (and (not (fboundp func))
- (not noerror))
- ;; This backend doesn't implement this function.
- (error "No such function: %s" func)))
+ (when (not (fboundp func))
+ (if noerror
+ (setq func nil)
+ (error "No such function: %s" func))))
func))
\f
(defun gnus-server-opened (gnus-command-method)
"Check whether a connection to GNUS-COMMAND-METHOD has been opened."
- (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)))
+ (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.
(funcall (gnus-get-function gnus-command-method func)
(gnus-group-real-name group) (nth 1 gnus-command-method)))))
+(defun gnus-request-group-articles (group)
+ "Request a list of existing articles in GROUP."
+ (let ((gnus-command-method (gnus-find-method-for-group group))
+ (func 'request-group-articles))
+ (when (gnus-check-backend-function func group)
+ (funcall (gnus-get-function gnus-command-method func)
+ (gnus-group-real-name group) (nth 1 gnus-command-method)))))
+
(defun gnus-close-group (group)
"Request the GROUP be closed."
(let ((gnus-command-method (inline (gnus-find-method-for-group group))))
(funcall (gnus-get-function gnus-command-method 'request-type)
(gnus-group-real-name group) article))))
+(defun gnus-request-set-mark (group action)
+ "Set marks on articles in the backend."
+ (let ((gnus-command-method (gnus-find-method-for-group group)))
+ (if (not (gnus-check-backend-function
+ 'request-set-mark (car gnus-command-method)))
+ action
+ (funcall (gnus-get-function gnus-command-method 'request-set-mark)
+ (gnus-group-real-name group) action
+ (nth 1 gnus-command-method)))))
+
(defun gnus-request-update-mark (group article mark)
- "Return the type (`post' or `mail') of GROUP (and ARTICLE)."
+ "Allow the backend to change the mark the user tries to put on an article."
(let ((gnus-command-method (gnus-find-method-for-group group)))
(if (not (gnus-check-backend-function
'request-update-mark (car gnus-command-method)))
(defun gnus-request-body (article group)
"Request the body of ARTICLE in GROUP."
- (let ((gnus-command-method (gnus-find-method-for-group group)))
- (funcall (gnus-get-function gnus-command-method 'request-body)
- article (gnus-group-real-name group)
- (nth 1 gnus-command-method))))
+ (let* ((gnus-command-method (gnus-find-method-for-group group))
+ (head (gnus-get-function gnus-command-method 'request-body t))
+ res clean-up)
+ (cond
+ ;; Check the cache.
+ ((and gnus-use-cache
+ (numberp article)
+ (gnus-cache-request-article article group))
+ (setq res (cons group article)
+ clean-up t))
+ ;; Use `head' function.
+ ((fboundp head)
+ (setq res (funcall head article (gnus-group-real-name group)
+ (nth 1 gnus-command-method))))
+ ;; Use `article' function.
+ (t
+ (setq res (gnus-request-article article group)
+ clean-up t)))
+ (when clean-up
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (goto-char (point-min))
+ (when (search-forward "\n\n" nil t)
+ (delete-region (point-min) (1- (point))))))
+ res))
(defun gnus-request-post (gnus-command-method)
"Post the current buffer using GNUS-COMMAND-METHOD."
(defun gnus-request-scan (group gnus-command-method)
"Request a SCAN being performed in GROUP from GNUS-COMMAND-METHOD.
If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned."
- (when gnus-plugged
- (let ((gnus-command-method
- (if group (gnus-find-method-for-group group) gnus-command-method))
- (gnus-inhibit-demon t))
- (funcall (gnus-get-function gnus-command-method 'request-scan)
- (and group (gnus-group-real-name group))
- (nth 1 gnus-command-method)))))
+ (let ((gnus-command-method
+ (if group (gnus-find-method-for-group group) gnus-command-method))
+ (gnus-inhibit-demon t)
+ (mail-source-plugged gnus-plugged))
+ (if (or gnus-plugged (not (gnus-agent-method-p gnus-command-method)))
+ (funcall (gnus-get-function gnus-command-method 'request-scan)
+ (and group (gnus-group-real-name group))
+ (nth 1 gnus-command-method)))))
(defsubst gnus-request-update-info (info gnus-command-method)
"Request that GNUS-COMMAND-METHOD update INFO."
article (gnus-group-real-name group)
(nth 1 gnus-command-method) accept-function last)))
-(defun gnus-request-accept-article (group &optional gnus-command-method last)
+(defun gnus-request-accept-article (group &optional gnus-command-method last
+ no-encode)
;; Make sure there's a newline at the end of the article.
(when (stringp gnus-command-method)
(setq gnus-command-method (gnus-server-to-method gnus-command-method)))
(goto-char (point-max))
(unless (bolp)
(insert "\n"))
+ (unless no-encode
+ (save-restriction
+ (message-narrow-to-head)
+ (let ((mail-parse-charset message-default-charset))
+ (mail-encode-encoded-word-buffer)))
+ (message-encode-message-body))
(let ((func (car (or gnus-command-method
(gnus-find-method-for-group group)))))
(funcall (intern (format "%s-request-accept-article" func))
(cadr gnus-command-method)
last)))
-(defun gnus-request-replace-article (article group buffer)
+(defun gnus-request-replace-article (article group buffer &optional no-encode)
+ (unless no-encode
+ (save-restriction
+ (message-narrow-to-head)
+ (let ((mail-parse-charset message-default-charset))
+ (mail-encode-encoded-word-buffer)))
+ (message-encode-message-body))
(let ((func (car (gnus-group-name-to-method group))))
(funcall (intern (format "%s-request-replace-article" func))
article (gnus-group-real-name group) buffer)))
projects / gnus / blobdiff