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1 | ;;; gnus-delay.el --- Delayed posting of articles |
2 | ||
ab422c4d | 3 | ;; Copyright (C) 2001-2013 Free Software Foundation, Inc. |
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c38e0c97 | 5 | ;; Author: Kai Großjohann <Kai.Grossjohann@CS.Uni-Dortmund.DE> |
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6 | ;; Keywords: mail, news, extensions |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
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10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation, either version 3 of the License, or | |
13 | ;; (at your option) any later version. | |
23f87bed | 14 | |
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15 | ;; GNU Emacs is distributed in the hope that it will be useful, |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
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19 | |
20 | ;; You should have received a copy of the GNU General Public License | |
5e809f55 | 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
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22 | |
23 | ;;; Commentary: | |
24 | ||
25 | ;; Provide delayed posting of articles. | |
26 | ||
27 | ;;; Todo: | |
28 | ||
29 | ;; * `gnus-delay-send-queue' barfs when group does not exist. | |
30 | ;; * Integrate gnus-delay.el into the rest of Gnus automatically. How | |
31 | ;; should this be done? Basically, we need to do what | |
32 | ;; `gnus-delay-initialize' does. But in which files? | |
33 | ||
34 | ;;; Code: | |
35 | ||
36 | (require 'nndraft) | |
37 | (require 'gnus-draft) | |
498063ec | 38 | (autoload 'parse-time-string "parse-time" nil nil) |
23f87bed | 39 | |
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40 | (defgroup gnus-delay nil |
41 | "Arrange for sending postings later." | |
bf247b6e | 42 | :version "22.1" |
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43 | :group 'gnus) |
44 | ||
45 | (defcustom gnus-delay-group "delayed" | |
46 | "Group name for storing delayed articles." | |
47 | :type 'string | |
48 | :group 'gnus-delay) | |
49 | ||
50 | (defcustom gnus-delay-header "X-Gnus-Delayed" | |
51 | "Header name for storing info about delayed articles." | |
52 | :type 'string | |
53 | :group 'gnus-delay) | |
54 | ||
55 | (defcustom gnus-delay-default-delay "3d" | |
56 | "*Default length of delay." | |
57 | :type 'string | |
58 | :group 'gnus-delay) | |
59 | ||
60 | (defcustom gnus-delay-default-hour 8 | |
61 | "*If deadline is given as date, then assume this time of day." | |
bf247b6e | 62 | :version "22.1" |
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63 | :type 'integer |
64 | :group 'gnus-delay) | |
65 | ||
66 | ;;;###autoload | |
67 | (defun gnus-delay-article (delay) | |
68 | "Delay this article by some time. | |
69 | DELAY is a string, giving the length of the time. Possible values are: | |
70 | ||
71 | * <digits><units> for <units> in minutes (`m'), hours (`h'), days (`d'), | |
72 | weeks (`w'), months (`M'), or years (`Y'); | |
73 | ||
74 | * YYYY-MM-DD for a specific date. The time of day is given by the | |
75 | variable `gnus-delay-default-hour', minute and second are zero. | |
76 | ||
77 | * hh:mm for a specific time. Use 24h format. If it is later than this | |
78 | time, then the deadline is tomorrow, else today." | |
79 | (interactive | |
80 | (list (read-string | |
12295c5d | 81 | "Target date (YYYY-MM-DD), time (hh:mm), or length of delay (units in [mhdwMY]): " |
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82 | gnus-delay-default-delay))) |
83 | (let (num unit days year month day hour minute deadline) | |
84 | (cond ((string-match | |
85 | "\\([0-9][0-9][0-9]?[0-9]?\\)-\\([0-9]+\\)-\\([0-9]+\\)" | |
86 | delay) | |
87 | (setq year (string-to-number (match-string 1 delay)) | |
88 | month (string-to-number (match-string 2 delay)) | |
89 | day (string-to-number (match-string 3 delay))) | |
90 | (setq deadline | |
91 | (message-make-date | |
92 | (encode-time 0 0 ; second and minute | |
93 | gnus-delay-default-hour | |
94 | day month year)))) | |
95 | ((string-match "\\([0-9]+\\):\\([0-9]+\\)" delay) | |
96 | (setq hour (string-to-number (match-string 1 delay)) | |
97 | minute (string-to-number (match-string 2 delay))) | |
98 | ;; Use current time, except... | |
99 | (setq deadline (apply 'vector (decode-time (current-time)))) | |
100 | ;; ... for minute and hour. | |
101 | (aset deadline 1 minute) | |
102 | (aset deadline 2 hour) | |
103 | ;; Convert to seconds. | |
9693d3c4 | 104 | (setq deadline (gnus-float-time (apply 'encode-time |
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105 | (append deadline nil)))) |
106 | ;; If this time has passed already, add a day. | |
1a727c75 | 107 | (when (< deadline (gnus-float-time)) |
12295c5d | 108 | (setq deadline (+ 86400 deadline))) ; 86400 secs/day |
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109 | ;; Convert seconds to date header. |
110 | (setq deadline (message-make-date | |
111 | (seconds-to-time deadline)))) | |
112 | ((string-match "\\([0-9]+\\)\\s-*\\([mhdwMY]\\)" delay) | |
113 | (setq num (match-string 1 delay)) | |
114 | (setq unit (match-string 2 delay)) | |
115 | ;; Start from seconds, then multiply into needed units. | |
116 | (setq num (string-to-number num)) | |
117 | (cond ((string= unit "Y") | |
118 | (setq delay (* num 60 60 24 365))) | |
119 | ((string= unit "M") | |
120 | (setq delay (* num 60 60 24 30))) | |
121 | ((string= unit "w") | |
122 | (setq delay (* num 60 60 24 7))) | |
123 | ((string= unit "d") | |
124 | (setq delay (* num 60 60 24))) | |
125 | ((string= unit "h") | |
126 | (setq delay (* num 60 60))) | |
127 | (t | |
128 | (setq delay (* num 60)))) | |
129 | (setq deadline (message-make-date | |
1a727c75 | 130 | (seconds-to-time (+ (gnus-float-time) delay))))) |
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131 | (t (error "Malformed delay `%s'" delay))) |
132 | (message-add-header (format "%s: %s" gnus-delay-header deadline))) | |
133 | (set-buffer-modified-p t) | |
134 | ;; If group does not exist, create it. | |
7cad71ad | 135 | (gnus-agent-queue-setup gnus-delay-group) |
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136 | (message-disassociate-draft) |
137 | (nndraft-request-associate-buffer gnus-delay-group) | |
138 | (save-buffer 0) | |
139 | (kill-buffer (current-buffer)) | |
140 | (message-do-actions message-postpone-actions)) | |
141 | ||
142 | ;;;###autoload | |
143 | (defun gnus-delay-send-queue () | |
144 | "Send all the delayed messages that are due now." | |
145 | (interactive) | |
146 | (save-excursion | |
147 | (let* ((group (format "nndraft:%s" gnus-delay-group)) | |
148 | (message-send-hook (copy-sequence message-send-hook)) | |
149 | articles | |
150 | article deadline) | |
01c52d31 | 151 | (when (gnus-group-entry group) |
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152 | (gnus-activate-group group) |
153 | (add-hook 'message-send-hook | |
4f91a816 | 154 | (lambda () (message-remove-header gnus-delay-header))) |
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155 | (setq articles (nndraft-articles)) |
156 | (while (setq article (pop articles)) | |
157 | (gnus-request-head article group) | |
158 | (set-buffer nntp-server-buffer) | |
159 | (goto-char (point-min)) | |
160 | (if (re-search-forward | |
161 | (concat "^" (regexp-quote gnus-delay-header) ":\\s-+") | |
162 | nil t) | |
163 | (progn | |
164 | (setq deadline (nnheader-header-value)) | |
165 | (setq deadline (apply 'encode-time | |
166 | (parse-time-string deadline))) | |
167 | (setq deadline (time-since deadline)) | |
168 | (when (and (>= (nth 0 deadline) 0) | |
169 | (>= (nth 1 deadline) 0)) | |
170 | (message "Sending delayed article %d" article) | |
171 | (gnus-draft-send article group) | |
172 | (message "Sending delayed article %d...done" article))) | |
173 | (message "Delay header missing for article %d" article))))))) | |
174 | ||
175 | ;;;###autoload | |
176 | (defun gnus-delay-initialize (&optional no-keymap no-check) | |
177 | "Initialize the gnus-delay package. | |
178 | This sets up a key binding in `message-mode' to delay a message. | |
179 | This tells Gnus to look for delayed messages after getting new news. | |
180 | ||
181 | The optional arg NO-KEYMAP is ignored. | |
182 | Checking delayed messages is skipped if optional arg NO-CHECK is non-nil." | |
183 | (unless no-check | |
184 | (add-hook 'gnus-get-new-news-hook 'gnus-delay-send-queue))) | |
185 | ||
186 | (provide 'gnus-delay) | |
187 | ||
188 | ;; Local Variables: | |
c38e0c97 | 189 | ;; coding: utf-8 |
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190 | ;; End: |
191 | ||
23f87bed | 192 | ;;; gnus-delay.el ends here |