X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=lisp%2Fgnus-int.el;h=da22bb52747510f914babfe804aeaa1d584e24cb;hb=ebdecdf203f300217a9a7f533dcf43fec5d427b4;hp=58f93a767b16a4279d08bfd6c9a605bfb92f7041;hpb=1fe5dcd40dc84880069ffc178924e6d1ae809bea;p=elisp%2Fgnus.git- diff --git a/lisp/gnus-int.el b/lisp/gnus-int.el index 58f93a7..da22bb5 100644 --- a/lisp/gnus-int.el +++ b/lisp/gnus-int.el @@ -1,7 +1,8 @@ ;;; gnus-int.el --- backend interface functions for Gnus -;; Copyright (C) 1996,97,98 Free Software Foundation, Inc. +;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002 +;; Free Software Foundation, Inc. -;; Author: Lars Magne Ingebrigtsen +;; Author: Lars Magne Ingebrigtsen ;; Keywords: news ;; This file is part of GNU Emacs. @@ -34,6 +35,17 @@ :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." + :group 'gnus-start + :type '(choice (const :tag "Ask" nil) + (const :tag "Deny server" denied) + (const :tag "Unplugg Agent" offline))) + ;;; ;;; Server Communication ;;; @@ -69,8 +81,7 @@ If CONFIRM is non-nil, the user will be asked for an NNTP server." (list 'nnmh-directory (file-name-as-directory (expand-file-name - (concat "~/" (substring - gnus-nntp-server 1))))) + (substring gnus-nntp-server 1) "~/"))) (list 'nnmh-get-new-mail nil))) (t (list 'nntp gnus-nntp-server))))) @@ -91,6 +102,7 @@ If CONFIRM is non-nil, the user will be asked for an NNTP server." ;; 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? " @@ -109,7 +121,8 @@ If CONFIRM is non-nil, the user will be asked for an NNTP server." "Check whether the connection to METHOD is down. If METHOD is nil, use `gnus-select-method'. If it is down, start it up (again)." - (let ((method (or method gnus-select-method))) + (let ((method (or method gnus-select-method)) + result) ;; Transform virtual server names into select methods. (when (stringp method) (setq method (gnus-server-to-method method))) @@ -123,9 +136,15 @@ If it is down, start it up (again)." (format " on %s" (nth 1 method))))) (gnus-run-hooks 'gnus-open-server-hook) (prog1 - (gnus-open-server method) + (condition-case () + (setq result (gnus-open-server method)) + (quit (message "Quit gnus-check-server") + nil)) (unless silent - (message "")))))) + (gnus-message 5 "Opening %s server%s...%s" (car method) + (if (equal (nth 1 method) "") "" + (format " on %s" (nth 1 method))) + (if result "done" "failed"))))))) (defun gnus-get-function (method function &optional noerror) "Return a function symbol based on METHOD and FUNCTION." @@ -134,18 +153,28 @@ If it is down, start it up (again)." (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)) @@ -165,17 +194,37 @@ If it is down, start it up (again)." nil) ;; Open the server. (let ((result - (funcall (gnus-get-function gnus-command-method 'open-server) - (nth 1 gnus-command-method) - (nthcdr 2 gnus-command-method)))) + (condition-case () + (funcall (gnus-get-function gnus-command-method 'open-server) + (nth 1 gnus-command-method) + (nthcdr 2 gnus-command-method)) + (quit + (message "Quit trying to open server") + nil)))) ;; If this hasn't been opened before, we add it to the list. (unless elem (setq elem (list gnus-command-method nil) gnus-opened-servers (cons elem gnus-opened-servers))) ;; Set the status of this server. - (setcar (cdr elem) (if result 'ok 'denied)) + (setcar (cdr elem) + (if result + (if (eq (cadr elem) 'offline) + 'offline + 'ok) + (if (and gnus-agent + (not (eq (cadr elem) 'offline)) + (gnus-agent-method-p gnus-command-method)) + (or gnus-server-unopen-status + (if (gnus-y-or-n-p + (format "Unable to open %s:%s, go offline? " + (car gnus-command-method) + (cadr gnus-command-method))) + 'offline + 'denied)) + 'denied))) ;; Return the result from the "open" call. - result)))) + (or (eq (cadr elem) 'offline) + result))))) (defun gnus-close-server (gnus-command-method) "Close the connection to GNUS-COMMAND-METHOD." @@ -208,14 +257,16 @@ If it is down, start it up (again)." (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. -If GNUS-COMMAND-METHOD is a string, it is interpreted as a group name. The 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) @@ -258,6 +309,14 @@ this group uses will be queried." (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)))) @@ -268,11 +327,16 @@ this group uses will be queried." "Request headers for ARTICLES in GROUP. If FETCH-OLD, retrieve all headers (or some subset thereof) in the group." (let ((gnus-command-method (gnus-find-method-for-group group))) - (if (and gnus-use-cache (numberp (car articles))) - (gnus-cache-retrieve-headers articles group fetch-old) + (cond + ((and gnus-use-cache (numberp (car articles))) + (gnus-cache-retrieve-headers articles group fetch-old)) + ((and gnus-agent gnus-agent-cache (gnus-online gnus-command-method) + (gnus-agent-method-p gnus-command-method)) + (gnus-agent-retrieve-headers articles group fetch-old)) + (t (funcall (gnus-get-function gnus-command-method 'retrieve-headers) articles (gnus-group-real-name group) - (nth 1 gnus-command-method) fetch-old)))) + (nth 1 gnus-command-method) fetch-old))))) (defun gnus-retrieve-articles (articles group) "Request ARTICLES in GROUP." @@ -297,8 +361,18 @@ If FETCH-OLD, retrieve all headers (or some subset thereof) in the 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))) @@ -327,6 +401,12 @@ If BUFFER, insert the article in that group." (gnus-cache-request-article article group)) (setq res (cons group article) clean-up t)) + ;; Check the agent cache. + ((and gnus-agent gnus-agent-cache gnus-plugged + (numberp article) + (gnus-agent-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) @@ -346,10 +426,37 @@ If BUFFER, insert the article in that group." (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)) + ;; Check the agent cache. + ((and gnus-agent gnus-agent-cache gnus-plugged + (numberp article) + (gnus-agent-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." @@ -361,13 +468,14 @@ If BUFFER, insert the article in that group." (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." @@ -375,24 +483,47 @@ If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned." (setq gnus-command-method (gnus-server-to-method gnus-command-method))) (when (gnus-check-backend-function 'request-update-info (car gnus-command-method)) - (funcall (gnus-get-function gnus-command-method 'request-update-info) - (gnus-group-real-name (gnus-info-group info)) - info (nth 1 gnus-command-method)))) + (let ((group (gnus-info-group info))) + (and (funcall (gnus-get-function gnus-command-method + 'request-update-info) + (gnus-group-real-name group) + info (nth 1 gnus-command-method)) + ;; If the minimum article number is greater than 1, then all + ;; smaller article numbers are known not to exist; we'll + ;; artificially add those to the 'read range. + (let* ((active (gnus-active group)) + (min (car active))) + (when (> min 1) + (let* ((range (if (= min 2) 1 (cons 1 (1- min)))) + (read (gnus-info-read info)) + (new-read (gnus-range-add read (list range)))) + (gnus-info-set-read info new-read))) + info))))) (defun gnus-request-expire-articles (articles group &optional force) - (let ((gnus-command-method (gnus-find-method-for-group group))) - (funcall (gnus-get-function gnus-command-method 'request-expire-articles) - articles (gnus-group-real-name group) (nth 1 gnus-command-method) - force))) - -(defun gnus-request-move-article - (article group server accept-function &optional last) - (let ((gnus-command-method (gnus-find-method-for-group group))) - (funcall (gnus-get-function gnus-command-method 'request-move-article) - 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) + (let* ((gnus-command-method (gnus-find-method-for-group group)) + (not-deleted + (funcall + (gnus-get-function gnus-command-method 'request-expire-articles) + articles (gnus-group-real-name group) (nth 1 gnus-command-method) + force))) + (when (and gnus-agent gnus-agent-cache + (gnus-sorted-difference articles not-deleted)) + (gnus-agent-expire (gnus-sorted-difference articles not-deleted) + group 'force)) + not-deleted)) + +(defun gnus-request-move-article (article group server accept-function &optional last) + (let* ((gnus-command-method (gnus-find-method-for-group group)) + (result (funcall (gnus-get-function gnus-command-method 'request-move-article) + article (gnus-group-real-name group) + (nth 1 gnus-command-method) accept-function last))) + (when (and result gnus-agent gnus-agent-cache) + (gnus-agent-expire (list article) group 'force)) + result)) + +(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))) @@ -402,14 +533,30 @@ If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned." (goto-char (point-max)) (unless (bolp) (insert "\n")) - (let ((func (car (or gnus-command-method - (gnus-find-method-for-group group))))) - (funcall (intern (format "%s-request-accept-article" func)) + (unless no-encode + (let ((message-options message-options)) + (message-options-set-recipient) + (save-restriction + (message-narrow-to-head) + (let ((mail-parse-charset message-default-charset)) + (mail-encode-encoded-word-buffer))) + (message-encode-message-body))) + (let ((gnus-command-method (or gnus-command-method + (gnus-find-method-for-group group)))) + (funcall (gnus-get-function gnus-command-method 'request-accept-article) (if (stringp group) (gnus-group-real-name group) group) (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 + (let ((message-options message-options)) + (message-options-set-recipient) + (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)))