1 ;;; mail-source.el --- functions for fetching mail
2 ;; Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
5 ;; Keywords: news, mail
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
31 (eval-when-compile (defvar display-time-mail-function)))
33 (autoload 'pop3-movemail "pop3")
34 (autoload 'pop3-get-message-count "pop3")
35 (autoload 'nnheader-cancel-timer "nnheader")
36 (autoload 'nnheader-run-at-time "nnheader"))
37 (require 'format-spec)
39 (require 'message) ;; for `message-directory'
41 (defgroup mail-source nil
42 "The mail-fetching library."
46 ;; Define these at compile time to avoid dragging in imap always.
47 (defconst mail-source-imap-authenticators
50 (list 'const (car a)))
51 imap-authenticator-alist)))
52 (defconst mail-source-imap-streams
55 (list 'const (car a)))
58 (defcustom mail-sources nil
59 "*Where the mail backends will look for incoming mail.
60 This variable is a list of mail source specifiers.
61 See Info node `(gnus)Mail Source Specifiers'."
63 :link '(custom-manual "(gnus)Mail Source Specifiers")
65 (choice :format "%[Value Menu%] %v"
67 (cons :tag "Spool file"
68 (const :format "" file)
69 (checklist :tag "Options" :greedy t
71 (const :format "" :value :path)
73 (cons :tag "Several files in a directory"
74 (const :format "" directory)
75 (checklist :tag "Options" :greedy t
77 (const :format "" :value :path)
78 (directory :tag "Path"))
80 (const :format "" :value :suffix)
81 (string :tag "Suffix"))
83 (const :format "" :value :predicate)
84 (function :tag "Predicate"))
86 (const :format "" :value :prescript)
87 (choice :tag "Prescript"
90 (function :format "%v")))
92 (const :format "" :value :postscript)
93 (choice :tag "Postscript"
96 (function :format "%v")))
98 (const :format "" :value :plugged)
99 (boolean :tag "Plugged"))))
100 (cons :tag "POP3 server"
101 (const :format "" pop)
102 (checklist :tag "Options" :greedy t
104 (const :format "" :value :server)
105 (string :tag "Server"))
107 (const :format "" :value :port)
110 (number :format "%v")
111 (string :format "%v")))
113 (const :format "" :value :user)
114 (string :tag "User"))
116 (const :format "" :value :password)
117 (string :tag "Password"))
119 (const :format "" :value :program)
120 (string :tag "Program"))
122 (const :format "" :value :prescript)
123 (choice :tag "Prescript"
125 (string :format "%v")
126 (function :format "%v")))
128 (const :format "" :value :postscript)
129 (choice :tag "Postscript"
131 (string :format "%v")
132 (function :format "%v")))
134 (const :format "" :value :function)
135 (function :tag "Function"))
138 :value :authentication)
139 (choice :tag "Authentication"
144 (const :format "" :value :plugged)
145 (boolean :tag "Plugged"))))
146 (cons :tag "Maildir (qmail, postfix...)"
147 (const :format "" maildir)
148 (checklist :tag "Options" :greedy t
150 (const :format "" :value :path)
151 (directory :tag "Path"))
153 (const :format "" :value :plugged)
154 (boolean :tag "Plugged"))))
155 (cons :tag "IMAP server"
156 (const :format "" imap)
157 (checklist :tag "Options" :greedy t
159 (const :format "" :value :server)
160 (string :tag "Server"))
162 (const :format "" :value :port)
167 (const :format "" :value :user)
168 (string :tag "User"))
170 (const :format "" :value :password)
171 (string :tag "Password"))
173 (const :format "" :value :stream)
174 (choice :tag "Stream"
176 ,@mail-source-imap-streams))
178 (const :format "" :value :program)
179 (string :tag "Program"))
182 :value :authenticator)
183 (choice :tag "Authenticator"
185 ,@mail-source-imap-authenticators))
187 (const :format "" :value :mailbox)
188 (string :tag "Mailbox"
191 (const :format "" :value :predicate)
192 (string :tag "Predicate"
193 :value "UNSEEN UNDELETED"))
195 (const :format "" :value :fetchflag)
196 (string :tag "Fetchflag"
201 (boolean :tag "Dontexpunge"))
203 (const :format "" :value :plugged)
204 (boolean :tag "Plugged"))))
205 (cons :tag "Webmail server"
206 (const :format "" webmail)
207 (checklist :tag "Options" :greedy t
209 (const :format "" :value :subtype)
210 ;; Should be generated from
211 ;; `webmail-type-definition', but we
212 ;; can't require webmail without W3.
213 (choice :tag "Subtype"
221 (const :format "" :value :user)
222 (string :tag "User"))
224 (const :format "" :value :password)
225 (string :tag "Password"))
229 (boolean :tag "Dontexpunge"))
231 (const :format "" :value :plugged)
232 (boolean :tag "Plugged")))))))
234 (defcustom mail-source-ignore-errors nil
235 "*Ignore errors when querying mail sources.
236 If nil, the user will be prompted when an error occurs. If non-nil,
237 the error will be ignored.")
239 (defcustom mail-source-primary-source nil
240 "*Primary source for incoming mail.
241 If non-nil, this maildrop will be checked periodically for new mail."
245 (defcustom mail-source-flash t
246 "*If non-nil, flash periodically when mail is available."
250 (defcustom mail-source-crash-box "~/.emacs-mail-crash-box"
251 "File where mail will be stored while processing it."
255 (defcustom mail-source-directory message-directory
256 "Directory where files (if any) will be stored."
260 (defcustom mail-source-default-file-modes 384
261 "Set the mode bits of all new mail files to this integer."
265 (defcustom mail-source-delete-incoming nil
266 "*If non-nil, delete incoming files after handling.
267 If t, delete immediately, if nil, never delete. If a positive number, delete
268 files older than number of days."
269 ;; Note: The removing happens in `mail-source-callback', i.e. no old
270 ;; incoming files will be deleted, unless you receive new mail.
272 ;; You may also set this to `nil' and call `mail-source-delete-old-incoming'
273 ;; from a hook or interactively.
275 :type '(choice (const :tag "immediately" t)
276 (const :tag "never" nil)
277 (integer :tag "days")))
279 (defcustom mail-source-delete-old-incoming-confirm t
280 "*If non-nil, ask for for confirmation before deleting old incoming files.
281 This variable only applies when `mail-source-delete-incoming' is a positive
286 (defcustom mail-source-incoming-file-prefix "Incoming"
287 "Prefix for file name for storing incoming mail"
291 (defcustom mail-source-report-new-mail-interval 5
292 "Interval in minutes between checks for new mail."
296 (defcustom mail-source-idle-time-delay 5
297 "Number of idle seconds to wait before checking for new mail."
301 (defcustom mail-source-movemail-program nil
302 "If non-nil, name of program for fetching new mail."
304 :type '(choice (const nil) string))
306 ;;; Internal variables.
308 (defvar mail-source-string ""
309 "A dynamically bound string that says what the current mail source is.")
311 (defvar mail-source-new-mail-available nil
312 "Flag indicating when new mail is available.")
315 (defvar mail-source-common-keyword-map
317 "Mapping from keywords to default values.
318 Common keywords should be listed here.")
320 (defvar mail-source-keyword-map
325 (:path (or (getenv "MAIL")
326 (expand-file-name (user-login-name) rmail-spool-directory))))
333 (:predicate identity))
338 (:server (getenv "MAILHOST"))
340 (:user (or (user-login-name) (getenv "LOGNAME") (getenv "USER")))
344 (:authentication password))
346 (:path (or (getenv "MAILDIR") "~/Maildir/"))
347 (:subdirs ("new" "cur"))
350 (:server (getenv "MAILHOST"))
355 (:user (or (user-login-name) (getenv "LOGNAME") (getenv "USER")))
358 (:predicate "UNSEEN UNDELETED")
359 (:fetchflag "\\Deleted")
363 (:user (or (user-login-name) (getenv "LOGNAME") (getenv "USER")))
366 (:authentication password)))
367 "Mapping from keywords to default values.
368 All keywords that can be used must be listed here."))
370 (defvar mail-source-fetcher-alist
371 '((file mail-source-fetch-file)
372 (directory mail-source-fetch-directory)
373 (pop mail-source-fetch-pop)
374 (maildir mail-source-fetch-maildir)
375 (imap mail-source-fetch-imap)
376 (webmail mail-source-fetch-webmail))
377 "A mapping from source type to fetcher function.")
379 (defvar mail-source-password-cache nil)
381 (defvar mail-source-plugged t)
386 (defun mail-source-strip-keyword (keyword)
387 "Strip the leading colon off the KEYWORD."
388 (intern (substring (symbol-name keyword) 1))))
391 (defun mail-source-bind-1 (type)
392 (let* ((defaults (cdr (assq type mail-source-keyword-map)))
394 (while (setq default (pop defaults))
395 (push (list (mail-source-strip-keyword (car default))
400 (defmacro mail-source-bind (type-source &rest body)
401 "Return a `let' form that binds all variables in source TYPE.
402 TYPE-SOURCE is a list where the first element is the TYPE, and
403 the second variable is the SOURCE.
404 At run time, the mail source specifier SOURCE will be inspected,
405 and the variables will be set according to it. Variables not
406 specified will be given default values.
408 After this is done, BODY will be executed in the scope
411 The variables bound and their default values are described by
412 the `mail-source-keyword-map' variable."
413 `(let ,(mail-source-bind-1 (car type-source))
414 (mail-source-set-1 ,(cadr type-source))
417 (put 'mail-source-bind 'lisp-indent-function 1)
418 (put 'mail-source-bind 'edebug-form-spec '(sexp body))
420 (defun mail-source-set-1 (source)
421 (let* ((type (pop source))
422 (defaults (cdr (assq type mail-source-keyword-map)))
423 default value keyword)
424 (while (setq default (pop defaults))
425 (set (mail-source-strip-keyword (setq keyword (car default)))
426 (if (setq value (plist-get source keyword))
427 (mail-source-value value)
428 (mail-source-value (cadr default)))))))
431 (defun mail-source-bind-common-1 ()
432 (let* ((defaults mail-source-common-keyword-map)
434 (while (setq default (pop defaults))
435 (push (list (mail-source-strip-keyword (car default))
440 (defun mail-source-set-common-1 (source)
441 (let* ((type (pop source))
442 (defaults mail-source-common-keyword-map)
443 (defaults-1 (cdr (assq type mail-source-keyword-map)))
444 default value keyword)
445 (while (setq default (pop defaults))
446 (set (mail-source-strip-keyword (setq keyword (car default)))
447 (if (setq value (plist-get source keyword))
448 (mail-source-value value)
449 (if (setq value (assq keyword defaults-1))
450 (mail-source-value (cadr value))
451 (mail-source-value (cadr default))))))))