diff options
Diffstat (limited to 'lisp/gnus/gnus-int.el')
| -rw-r--r-- | lisp/gnus/gnus-int.el | 235 |
1 files changed, 160 insertions, 75 deletions
diff --git a/lisp/gnus/gnus-int.el b/lisp/gnus/gnus-int.el index eef1969ef6e..ef15a479892 100644 --- a/lisp/gnus/gnus-int.el +++ b/lisp/gnus/gnus-int.el @@ -1,7 +1,6 @@ ;;; gnus-int.el --- backend interface functions for Gnus -;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 -;; 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. +;; Copyright (C) 1996-2011 Free Software Foundation, Inc. ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> ;; Keywords: news @@ -31,6 +30,7 @@ (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") @@ -41,6 +41,16 @@ :group 'gnus-start :type 'hook) +(defcustom gnus-after-set-mark-hook nil + "Hook called just after marks are set in a group." + :group 'gnus-start + :type 'hook) + +(defcustom gnus-before-update-mark-hook nil + "Hook called just before marks are updated in a group." + :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 @@ -89,16 +99,13 @@ 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 server name with completion. (setq gnus-nntp-server - (completing-read "NNTP server: " - (mapcar 'list - (cons (list gnus-nntp-server) - gnus-secondary-servers)) - nil nil gnus-nntp-server))) + (gnus-completing-read "NNTP server" + (cons gnus-nntp-server + gnus-secondary-servers) + nil gnus-nntp-server))) (when (and gnus-nntp-server (stringp gnus-nntp-server) @@ -179,15 +186,17 @@ If it is down, start it up (again)." (format " on %s" (nth 1 method))))) (gnus-run-hooks 'gnus-open-server-hook) (prog1 - (condition-case () - (setq result (gnus-open-server method)) - (quit (message "Quit gnus-check-server") - nil)) + (setq result (gnus-open-server method)) (unless silent - (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"))))))) + (gnus-message + (if result 5 3) + "Opening %s server%s...%s" (car method) + (if (equal (nth 1 method) "") "" + (format " on %s" (nth 1 method))) + (if result + "done" + (format "failed: %s" + (nnheader-get-report-string (car method)))))))))) (defun gnus-get-function (method function &optional noerror) "Return a function symbol based on METHOD and FUNCTION." @@ -225,10 +234,22 @@ If it is down, start it up (again)." ;;; Interface functions to the backends. ;;; +(defun gnus-method-denied-p (method) + (eq (nth 1 (assoc method gnus-opened-servers)) + 'denied)) + +(defvar gnus-backend-trace t) + (defun gnus-open-server (gnus-command-method) "Open a connection to GNUS-COMMAND-METHOD." (when (stringp gnus-command-method) (setq gnus-command-method (gnus-server-to-method gnus-command-method))) + (when gnus-backend-trace + (with-current-buffer (get-buffer-create "*gnus trace*") + (buffer-disable-undo) + (goto-char (point-max)) + (insert (format-time-string "%H:%M:%S") + (format " %S\n" gnus-command-method)))) (let ((elem (assoc gnus-command-method gnus-opened-servers)) (server (gnus-method-to-server-name gnus-command-method))) ;; If this method was previously denied, we just return nil. @@ -237,54 +258,53 @@ If it is down, start it up (again)." (gnus-message 1 "Denied server %s" server) nil) ;; Open the server. - (let* ((open-server-function (gnus-get-function gnus-command-method 'open-server)) + (let* ((open-server-function + (gnus-get-function gnus-command-method 'open-server)) (result - (condition-case err - (funcall open-server-function - (nth 1 gnus-command-method) - (nthcdr 2 gnus-command-method)) - (error - (gnus-message 1 (format - "Unable to open server %s due to: %s" - server (error-message-string err))) - nil) - (quit - (gnus-message 1 "Quit trying to open server %s" server) - nil))) - open-offline) + (condition-case err + (funcall open-server-function + (nth 1 gnus-command-method) + (nthcdr 2 gnus-command-method)) + (error + (gnus-message 1 "Unable to open server %s due to: %s" + server (error-message-string err)) + nil) + (quit + (if debug-on-quit + (debug "Quit") + (gnus-message 1 "Quit trying to open server %s" server)) + nil))) + open-offline) ;; 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) - (cond (result - (if (eq open-server-function #'nnagent-open-server) - ;; The agent's backend has a "special" status - 'offline - 'ok)) - ((and gnus-agent - (gnus-agent-method-p gnus-command-method)) - (cond (gnus-server-unopen-status - ;; Set the server's status to the unopen - ;; status. If that status is offline, - ;; recurse to open the agent's backend. - (setq open-offline (eq gnus-server-unopen-status 'offline)) - gnus-server-unopen-status) - ((and - (not gnus-batch-mode) - (gnus-y-or-n-p - (format - "Unable to open server %s, go offline? " - server))) - (setq open-offline t) - 'offline) - (t - ;; This agentized server was still denied - 'denied))) - (t - ;; This unagentized server must be denied - 'denied))) + (setcar + (cdr elem) + (cond (result + (if (eq open-server-function #'nnagent-open-server) + ;; The agent's backend has a "special" status + 'offline + 'ok)) + ((and gnus-agent + (gnus-agent-method-p gnus-command-method)) + (cond + (gnus-server-unopen-status + ;; Set the server's status to the unopen + ;; status. If that status is offline, + ;; recurse to open the agent's backend. + (setq open-offline (eq gnus-server-unopen-status 'offline)) + gnus-server-unopen-status) + ((not gnus-batch-mode) + (setq open-offline t) + 'offline) + (t + ;; This agentized server was still denied + 'denied))) + (t + ;; This unagentized server must be denied + 'denied))) ;; NOTE: I MUST set the server's status to offline before this ;; recursive call as this status will drive the @@ -319,6 +339,22 @@ If it is down, start it up (again)." (funcall (gnus-get-function gnus-command-method 'request-list) (nth 1 gnus-command-method))) +(defun gnus-finish-retrieve-group-infos (gnus-command-method infos data) + "Read and update infos from GNUS-COMMAND-METHOD." + (when (stringp gnus-command-method) + (setq gnus-command-method (gnus-server-to-method gnus-command-method))) + (funcall (gnus-get-function gnus-command-method 'finish-retrieve-group-infos) + (nth 1 gnus-command-method) + infos data)) + +(defun gnus-retrieve-group-data-early (gnus-command-method infos) + "Start early async retrival of data from GNUS-COMMAND-METHOD." + (when (stringp gnus-command-method) + (setq gnus-command-method (gnus-server-to-method gnus-command-method))) + (funcall (gnus-get-function gnus-command-method 'retrieve-group-data-early) + (nth 1 gnus-command-method) + infos)) + (defun gnus-request-list-newsgroups (gnus-command-method) "Request the newsgroups file from GNUS-COMMAND-METHOD." (when (stringp gnus-command-method) @@ -358,16 +394,17 @@ If it is down, start it up (again)." (funcall (gnus-get-function gnus-command-method 'request-compact) (nth 1 gnus-command-method))) -(defun gnus-request-group (group &optional dont-check gnus-command-method) +(defun gnus-request-group (group &optional dont-check gnus-command-method info) "Request GROUP. If DONT-CHECK, no information is required." (let ((gnus-command-method (or gnus-command-method (inline (gnus-find-method-for-group group))))) (when (stringp gnus-command-method) (setq gnus-command-method (inline (gnus-server-to-method gnus-command-method)))) - (funcall (inline (gnus-get-function gnus-command-method 'request-group)) + (funcall (inline (gnus-get-function gnus-command-method 'request-group)) (gnus-group-real-name group) (nth 1 gnus-command-method) - dont-check))) + dont-check + info))) (defun gnus-list-active-group (group) "Request active information on GROUP." @@ -437,6 +474,18 @@ 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-update-group-status (group status) + "Change the status of a group. +Valid statuses include `subscribe' and `unsubscribe'." + (let ((gnus-command-method (gnus-find-method-for-group group))) + (if (not (gnus-check-backend-function + 'request-update-group-status (car gnus-command-method))) + nil + (funcall + (gnus-get-function gnus-command-method 'request-update-group-status) + (gnus-group-real-name group) status + (nth 1 gnus-command-method))))) + (defun gnus-request-set-mark (group action) "Set marks on articles in the back end." (let ((gnus-command-method (gnus-find-method-for-group group))) @@ -445,7 +494,8 @@ If FETCH-OLD, retrieve all headers (or some subset thereof) in the group." action (funcall (gnus-get-function gnus-command-method 'request-set-mark) (gnus-group-real-name group) action - (nth 1 gnus-command-method))))) + (nth 1 gnus-command-method)) + (gnus-run-hook-with-args gnus-after-set-mark-hook group action)))) (defun gnus-request-update-mark (group article mark) "Allow the back end to change the mark the user tries to put on an article." @@ -453,6 +503,7 @@ If FETCH-OLD, retrieve all headers (or some subset thereof) in the group." (if (not (gnus-check-backend-function 'request-update-mark (car gnus-command-method))) mark + (gnus-run-hook-with-args gnus-before-update-mark-hook group article mark) (funcall (gnus-get-function gnus-command-method 'request-update-mark) (gnus-group-real-name group) article mark)))) @@ -465,6 +516,22 @@ If BUFFER, insert the article in that group." article (gnus-group-real-name group) (nth 1 gnus-command-method) buffer))) +(defun gnus-request-thread (header) + "Request the headers in the thread containing the article specified by HEADER." + (let ((gnus-command-method (gnus-find-method-for-group gnus-newsgroup-name))) + (funcall (gnus-get-function gnus-command-method 'request-thread) + header))) + +(defun gnus-warp-to-article () + "Warps from an article in a virtual group to the article in its +real group. Does nothing on a real group." + (interactive) + (let ((gnus-command-method + (gnus-find-method-for-group gnus-newsgroup-name))) + (when (gnus-check-backend-function + 'warp-to-article (car gnus-command-method)) + (funcall (gnus-get-function gnus-command-method 'warp-to-article))))) + (defun gnus-request-head (article group) "Request the head of ARTICLE in GROUP." (let* ((gnus-command-method (gnus-find-method-for-group group)) @@ -490,8 +557,7 @@ If BUFFER, insert the article in that group." (setq res (gnus-request-article article group) clean-up t))) (when clean-up - (save-excursion - (set-buffer nntp-server-buffer) + (with-current-buffer nntp-server-buffer (goto-char (point-min)) (when (search-forward "\n\n" nil t) (delete-region (1- (point)) (point-max))) @@ -523,8 +589,7 @@ If BUFFER, insert the article in that group." (setq res (gnus-request-article article group) clean-up t))) (when clean-up - (save-excursion - (set-buffer nntp-server-buffer) + (with-current-buffer nntp-server-buffer (goto-char (point-min)) (when (search-forward "\n\n" nil t) (delete-region (point-min) (1- (point)))))) @@ -537,6 +602,14 @@ If BUFFER, insert the article in that group." (funcall (gnus-get-function gnus-command-method 'request-post) (nth 1 gnus-command-method))) +(defun gnus-request-expunge-group (group gnus-command-method) + "Expunge GROUP, which is removing articles that have been marked as deleted." + (when (stringp gnus-command-method) + (setq gnus-command-method (gnus-server-to-method gnus-command-method))) + (funcall (gnus-get-function gnus-command-method 'request-expunge-group) + (gnus-group-real-name group) + (nth 1 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." @@ -544,21 +617,30 @@ If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned." (if group (gnus-find-method-for-group group) gnus-command-method)) (gnus-inhibit-demon t) (mail-source-plugged gnus-plugged)) - (when (or gnus-plugged (not (gnus-agent-method-p gnus-command-method))) + (when (or gnus-plugged + (not (gnus-agent-method-p gnus-command-method))) (setq gnus-internal-registry-spool-current-method 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) +(defun gnus-request-update-info (info gnus-command-method) + (when (gnus-check-backend-function + 'request-update-info (car gnus-command-method)) + (when (stringp gnus-command-method) + (setq gnus-command-method (gnus-server-to-method 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)))) + +(defsubst gnus-request-marks (info gnus-command-method) "Request that GNUS-COMMAND-METHOD update INFO." (when (stringp gnus-command-method) (setq gnus-command-method (gnus-server-to-method gnus-command-method))) (when (gnus-check-backend-function - 'request-update-info (car gnus-command-method)) + 'request-marks (car gnus-command-method)) (let ((group (gnus-info-group info))) - (and (funcall (gnus-get-function gnus-command-method - 'request-update-info) + (and (funcall (gnus-get-function gnus-command-method 'request-marks) (gnus-group-real-name group) info (nth 1 gnus-command-method)) ;; If the minimum article number is greater than 1, then all @@ -575,6 +657,7 @@ If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned." (defun gnus-request-expire-articles (articles group &optional force) (let* ((gnus-command-method (gnus-find-method-for-group group)) + (gnus-inhibit-demon t) (not-deleted (funcall (gnus-get-function gnus-command-method 'request-expire-articles) @@ -593,7 +676,8 @@ If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned." (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 move-is-internal))) + (nth 1 gnus-command-method) accept-function + last move-is-internal))) (when (and result gnus-agent (gnus-agent-method-p gnus-command-method)) (gnus-agent-unfetch-articles group (list article))) @@ -627,7 +711,9 @@ If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned." (if (stringp group) (gnus-group-real-name group) group) (cadr gnus-command-method) last))) - (when (and gnus-agent (gnus-agent-method-p gnus-command-method)) + (when (and gnus-agent + (gnus-agent-method-p gnus-command-method) + (cdr result)) (gnus-agent-regenerate-group group (list (cdr result)))) result)) @@ -716,5 +802,4 @@ If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned." (provide 'gnus-int) -;; arch-tag: bbc90087-9b7f-4017-a92c-3abf180ac86d ;;; gnus-int.el ends here |