;;; gnus-delay.el --- Delayed posting of articles -*- coding: latin-1; -*- ;; Copyright (C) 2001 Free Software Foundation, Inc. ;; Author: Kai Großjohann ;; Keywords: mail, news, extensions ;; This file 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. ;; This file 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 ;; 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. ;;; Commentary: ;; Provide delayed posting of articles. ;;; Code: (require 'nndraft) (require 'gnus-draft) (defvar gnus-delay-group "delayed" "Group name for storing delayed articles.") (defvar gnus-delay-header "X-Gnus-Delayed" "Header name for storing info about delayed articles.") (defvar gnus-delay-default-delay "3d" "*Default length of delay.") (defvar gnus-delay-default-hour 8 "*If deadline is given as date, then assume this time of day.") (defun gnus-delay-article (delay) "Delay this article by some time. DELAY is a string, giving the length of the time. Possible values are: * for in minutes (`m'), hours (`h'), days (`d'), weeks (`w'), months (`M'), or years (`Y'); * YYYY-MM-DD for a specific date. The time of day is given by the variable `gnus-delay-default-hour', minute and second are zero. * hh:mm for a specific time. Use 24h format. If it is later than this time, then the deadline is tomorrow, else today." (interactive (list (read-string "Target date (YYYY-MM-DD) or length of delay (units in [mhdwMY]): " gnus-delay-default-delay))) (let (num unit days year month day hour minute deadline) (cond ((string-match "\\([0-9][0-9][0-9]?[0-9]?\\)-\\([0-9]+\\)-\\([0-9]+\\)" delay) (setq year (string-to-number (match-string 1 delay)) month (string-to-number (match-string 2 delay)) day (string-to-number (match-string 3 delay))) (setq deadline (message-make-date (encode-time 0 0 ; second and minute gnus-delay-default-hour day month year)))) ((string-match "\\([0-9]+\\):\\([0-9]+\\)" delay) (setq hour (string-to-number (match-string 1 delay)) minute (string-to-number (match-string 2 delay))) ;; Use current time, except... (setq deadline (apply 'vector (decode-time (current-time)))) ;; ... for minute and hour. (aset deadline 1 minute) (aset deadline 2 hour) ;; Convert to seconds. (setq deadline (time-to-seconds (apply 'encode-time (append deadline nil)))) ;; If this time has passed already, add a day. (when (< deadline (time-to-seconds (current-time))) (setq deadline (+ 3600 deadline))) ;3600 secs/day ;; Convert seconds to date header. (setq deadline (message-make-date (seconds-to-time deadline)))) ((string-match "\\([0-9]+\\)\\s-*\\([mhdwMY]\\)" delay) (setq num (match-string 1 delay)) (setq unit (match-string 2 delay)) ;; Start from seconds, then multiply into needed units. (setq num (string-to-number num)) (cond ((string= unit "Y") (setq delay (* num 60 60 24 365))) ((string= unit "M") (setq delay (* num 60 60 24 30))) ((string= unit "w") (setq delay (* num 60 60 24 7))) ((string= unit "d") (setq delay (* num 60 60 24))) ((string= unit "h") (setq delay (* num 60 60))) (t (setq delay (* num 60)))) (setq deadline (message-make-date (seconds-to-time (+ (time-to-seconds (current-time)) delay))))) (t (error "Malformed delay `%s'" delay))) (message-add-header (format "%s: %s" gnus-delay-header deadline))) (set-buffer-modified-p t) (nndraft-request-create-group gnus-delay-group) (message-disassociate-draft) (nndraft-request-associate-buffer gnus-delay-group) (save-buffer 0) (kill-buffer (current-buffer)) (message-do-actions message-postpone-actions)) (defun gnus-delay-send-drafts () "Send all the delayed messages that are due now." (interactive) (save-excursion (let* ((group (format "nndraft:%s" gnus-delay-group)) articles article deadline) (gnus-activate-group group) (setq articles (nndraft-articles)) (while (setq article (pop articles)) (gnus-request-head article group) (set-buffer nntp-server-buffer) (goto-char (point-min)) (if (re-search-forward (concat "^" (regexp-quote gnus-delay-header) ":\\s-+") nil t) (progn (setq deadline (nnheader-header-value)) (setq deadline (apply 'encode-time (parse-time-string deadline))) (setq deadline (time-since deadline)) (when (and (>= (nth 0 deadline) 0) (>= (nth 1 deadline) 0)) (message "Sending delayed article %d" article) (gnus-draft-send article group) (message "Sending delayed article %d...done" article))) (message "Delay header missing for article %d" article)))))) ;;;###autoload (defun gnus-delay-initialize (&optional no-keymap no-check) "Initialize the gnus-delay package. This sets up a key binding in `message-mode' to delay a message. This tells Gnus to look for delayed messages after getting new news. Key binding is skipped if optional arg NO-KEYMAP is non-nil. Checking delayed messages is skipped if optional arg NO-CHECK is non-nil." (unless no-keymap (require 'message) (define-key message-mode-map "\C-c\n" 'gnus-delay-article)) (unless no-check (add-hook 'gnus-get-new-news-hook 'gnus-delay-send-drafts))) (provide 'gnus-delay) ;;; gnus-delay.el ends here