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 t
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))))))))
453 (defmacro mail-source-bind-common (source &rest body)
454 "Return a `let' form that binds all common variables.
455 See `mail-source-bind'."
456 `(let ,(mail-source-bind-common-1)
457 (mail-source-set-common-1 source)
460 (put 'mail-source-bind-common 'lisp-indent-function 1)
461 (put 'mail-source-bind-common 'edebug-form-spec '(sexp body))
463 (defun mail-source-value (value)
464 "Return the value of VALUE."
471 (functionp (car value)))
473 ;; Just return the value.
477 (defun mail-source-fetch (source callback)
478 "Fetch mail from SOURCE and call CALLBACK zero or more times.
479 CALLBACK will be called with the name of the file where (some of)
480 the mail from SOURCE is put.
481 Return the number of files that were found."
482 (mail-source-bind-common source
483 (if (or mail-source-plugged plugged)
485 (let ((function (cadr (assq (car source) mail-source-fetcher-alist)))
488 (error "%S is an invalid mail source specification" source))
489 ;; If there's anything in the crash box, we do it first.
490 (when (file-exists-p mail-source-crash-box)
491 (message "Processing mail from %s..." mail-source-crash-box)
492 (setq found (mail-source-callback
493 callback mail-source-crash-box)))
495 (if (or debug-on-quit debug-on-error)
496 (funcall function source callback)
498 (funcall function source callback)
500 (if (and (not mail-source-ignore-errors)
503 (format "Mail source %s error (%s). Continue? "
504 (if (memq ':password source)
505 (let ((s (copy-sequence source)))
506 (setcar (cdr (memq ':password s))
511 (error "Cannot get new mail"))
514 (defun mail-source-delete-old-incoming (&optional age confirm)
515 "Remove incoming files older than AGE days.
516 If CONFIRM is non-nil, ask for confirmation before removing a file."
518 (let* ((high2days (/ 65536.0 60 60 24));; convert high bits to days
519 (low2days (/ 1.0 65536.0)) ;; convert low bits to days
520 (diff (if (natnump age) age 30));; fallback, if no valid AGE given
522 (setq files (directory-files
523 mail-source-directory t
524 (concat mail-source-incoming-file-prefix "*"))
525 currday (* (car (current-time)) high2days)
526 currday (+ currday (* low2days (nth 1 (current-time)))))
528 (let* ((ffile (car files))
529 (bfile (gnus-replace-in-string
530 ffile "\\`.*/\\([^/]+\\)\\'" "\\1"))
531 (filetime (nth 5 (file-attributes ffile)))
532 (fileday (* (car filetime) high2days))
533 (fileday (+ fileday (* low2days (nth 1 filetime)))))
534 (setq files (cdr files))
535 (when (and (> (- currday fileday) diff)
536 (gnus-message 8 "File `%s' is older than %s day(s)"
539 (y-or-n-p (concat "Remove file `" bfile "'? "))))
540 (delete-file ffile))))))
542 (defun mail-source-callback (callback info)
543 "Call CALLBACK on the mail file, and then remove the mail file.
544 Pass INFO on to CALLBACK."
545 (if (or (not (file-exists-p mail-source-crash-box))
546 (zerop (nth 7 (file-attributes mail-source-crash-box))))
548 (when (file-exists-p mail-source-crash-box)
549 (delete-file mail-source-crash-box))
552 (funcall callback mail-source-crash-box info)
553 (when (file-exists-p mail-source-crash-box)
554 ;; Delete or move the incoming mail out of the way.
555 (if (eq mail-source-delete-incoming t)
556 (delete-file mail-source-crash-box)
560 mail-source-incoming-file-prefix
561 mail-source-directory))))
562 (unless (file-exists-p (file-name-directory incoming))
563 (make-directory (file-name-directory incoming) t))
564 (rename-file mail-source-crash-box incoming t)
565 ;; remove old incoming files?
566 (when (natnump mail-source-delete-incoming)
567 (mail-source-delete-old-incoming
568 mail-source-delete-incoming
569 mail-source-delete-old-incoming-confirm))))))))
571 (defun mail-source-movemail (from to)
572 "Move FROM to TO using movemail."
573 (if (not (file-writable-p to))
574 (error "Can't write to crash box %s. Not moving mail" to)
575 (let ((to (file-truename (expand-file-name to)))
577 (setq to (file-truename to)
578 from (file-truename from))
579 ;; Set TO if have not already done so, and rename or copy
580 ;; the file FROM to TO if and as appropriate.
583 ;; The crash box exists already.
585 ((not (file-exists-p from))
586 ;; There is no inbox.
588 ((zerop (nth 7 (file-attributes from)))
592 ;; If getting from mail spool directory, use movemail to move
593 ;; rather than just renaming, so as to interlock with the
597 (setq errors (generate-new-buffer " *mail source loss*"))
598 (let ((default-directory "/"))
604 (or mail-source-movemail-program
605 (expand-file-name "movemail" exec-directory))
606 nil errors nil from to)))))
607 (when (file-exists-p to)
608 (set-file-modes to mail-source-default-file-modes))
609 (if (and (or (not (buffer-modified-p errors))
610 (zerop (buffer-size errors)))
611 (and (numberp result)
613 ;; No output => movemail won.
616 ;; There may be a warning about older revisions. We
618 (goto-char (point-min))
619 (if (search-forward "older revision" nil t)
621 ;; Probably a real error.
622 (subst-char-in-region (point-min) (point-max) ?\n ?\ )
623 (goto-char (point-max))
624 (skip-chars-backward " \t")
625 (delete-region (point) (point-max))
626 (goto-char (point-min))
627 (when (looking-at "movemail: ")
628 (delete-region (point-min) (match-end 0)))
629 ;; Result may be a signal description string.
631 (format "movemail: %s (%s return). Continue? "
632 (buffer-string) result))
633 (error "%s" (buffer-string)))
636 (buffer-name errors))
637 (kill-buffer errors))
638 ;; Return whether we moved successfully or not.
641 (defun mail-source-movemail-and-remove (from to)
642 "Move FROM to TO using movemail, then remove FROM if empty."
643 (or (not (mail-source-movemail from to))
644 (not (zerop (nth 7 (file-attributes from))))
647 (defun mail-source-fetch-with-program (program)
648 (zerop (call-process shell-file-name nil nil nil
649 shell-command-switch program)))
651 (defun mail-source-run-script (script spec &optional delay)
653 (if (functionp script)
655 (mail-source-call-script
656 (format-spec script spec))))
660 (defun mail-source-call-script (script)
661 (let ((background nil))
662 (when (string-match "& *$" script)
663 (setq script (substring script 0 (match-beginning 0))
665 (call-process shell-file-name nil background nil
666 shell-command-switch script)))
669 ;;; Different fetchers
672 (defun mail-source-fetch-file (source callback)
673 "Fetcher for single-file sources."
674 (mail-source-bind (file source)
675 (mail-source-run-script
676 prescript (format-spec-make ?t mail-source-crash-box)
678 (let ((mail-source-string (format "file:%s" path)))
679 (if (mail-source-movemail path mail-source-crash-box)
681 (mail-source-callback callback path)
682 (mail-source-run-script
683 postscript (format-spec-make ?t mail-source-crash-box)))
686 (defun mail-source-fetch-directory (source callback)
687 "Fetcher for directory sources."
688 (mail-source-bind (directory source)
689 (mail-source-run-script
690 prescript (format-spec-make ?t path) prescript-delay)
692 (mail-source-string (format "directory:%s" path)))
693 (dolist (file (directory-files
694 path t (concat (regexp-quote suffix) "$")))
695 (when (and (file-regular-p file)
696 (funcall predicate file)
697 (mail-source-movemail file mail-source-crash-box))
698 (incf found (mail-source-callback callback file))))
699 (mail-source-run-script postscript (format-spec-make ?t path))
702 (defun mail-source-fetch-pop (source callback)
703 "Fetcher for single-file sources."
704 (mail-source-bind (pop source)
705 (mail-source-run-script
707 (format-spec-make ?p password ?t mail-source-crash-box
708 ?s server ?P port ?u user)
710 (let ((from (format "%s:%s:%s" server user port))
711 (mail-source-string (format "pop:%s@%s" user server))
713 (when (eq authentication 'password)
716 (cdr (assoc from mail-source-password-cache))
718 (format "Password for %s at %s: " user server)))))
720 (setenv "MAILHOST" server))
724 (mail-source-fetch-with-program
727 (format-spec-make ?p password ?t mail-source-crash-box
728 ?s server ?P port ?u user))))
730 (funcall function mail-source-crash-box))
731 ;; The default is to use pop3.el.
733 (let ((pop3-password password)
735 (pop3-mailhost server)
737 (pop3-authentication-scheme
738 (if (eq authentication 'apop) 'apop 'pass)))
739 (if (or debug-on-quit debug-on-error)
740 (save-excursion (pop3-movemail mail-source-crash-box))
742 (save-excursion (pop3-movemail mail-source-crash-box))
744 ;; We nix out the password in case the error
745 ;; was because of a wrong password being given.
746 (setq mail-source-password-cache
747 (delq (assoc from mail-source-password-cache)
748 mail-source-password-cache))
749 (signal (car err) (cdr err)))))))))
752 (when (eq authentication 'password)
753 (unless (assoc from mail-source-password-cache)
754 (push (cons from password) mail-source-password-cache)))
756 (mail-source-callback callback server)
757 ;; Update display-time's mail flag, if relevant.
758 (if (equal source mail-source-primary-source)
759 (setq mail-source-new-mail-available nil))
760 (mail-source-run-script
762 (format-spec-make ?p password ?t mail-source-crash-box
763 ?s server ?P port ?u user))))
764 ;; We nix out the password in case the error
765 ;; was because of a wrong password being given.
766 (setq mail-source-password-cache
767 (delq (assoc from mail-source-password-cache)
768 mail-source-password-cache))
771 (defun mail-source-check-pop (source)
772 "Check whether there is new mail."
773 (mail-source-bind (pop source)
774 (let ((from (format "%s:%s:%s" server user port))
775 (mail-source-string (format "pop:%s@%s" user server))
777 (when (eq authentication 'password)
780 (cdr (assoc from mail-source-password-cache))
782 (format "Password for %s at %s: " user server))))
783 (unless (assoc from mail-source-password-cache)
784 (push (cons from password) mail-source-password-cache)))
786 (setenv "MAILHOST" server))
789 ;; No easy way to check whether mail is waiting for these.
792 ;; The default is to use pop3.el.
794 (let ((pop3-password password)
796 (pop3-mailhost server)
798 (pop3-authentication-scheme
799 (if (eq authentication 'apop) 'apop 'pass)))
800 (if (or debug-on-quit debug-on-error)
801 (save-excursion (pop3-get-message-count))
803 (save-excursion (pop3-get-message-count))
805 ;; We nix out the password in case the error
806 ;; was because of a wrong password being given.
807 (setq mail-source-password-cache
808 (delq (assoc from mail-source-password-cache)
809 mail-source-password-cache))
810 (signal (car err) (cdr err)))))))))
812 ;; Inform display-time that we have new mail.
813 (setq mail-source-new-mail-available (> result 0))
814 ;; We nix out the password in case the error
815 ;; was because of a wrong password being given.
816 (setq mail-source-password-cache
817 (delq (assoc from mail-source-password-cache)
818 mail-source-password-cache)))
821 (defun mail-source-touch-pop ()
822 "Open and close a POP connection shortly.
823 POP server should be defined in `mail-source-primary-source' (which is
824 preferred) or `mail-sources'. You may use it for the POP-before-SMTP
825 authentication. To do that, you need to set the option
826 `message-send-mail-function' to `message-smtpmail-send-it' and put the
827 following line in .gnus file:
829 \(add-hook 'message-send-mail-hook 'mail-source-touch-pop)
831 (let ((sources (if mail-source-primary-source
832 (list mail-source-primary-source)
835 (if (eq 'pop (car (car sources)))
836 (mail-source-check-pop (car sources)))
837 (setq sources (cdr sources)))))
839 (defun mail-source-new-mail-p ()
840 "Handler for `display-time' to indicate when new mail is available."
841 ;; Flash (ie. ring the visible bell) if mail is available.
842 (if (and mail-source-flash mail-source-new-mail-available)
843 (let ((visible-bell t))
845 ;; Only report flag setting; flag is updated on a different schedule.
846 mail-source-new-mail-available)
849 (defvar mail-source-report-new-mail nil)
850 (defvar mail-source-report-new-mail-timer nil)
851 (defvar mail-source-report-new-mail-idle-timer nil)
854 (if (featurep 'xemacs)
858 (defun mail-source-start-idle-timer ()
859 ;; Start our idle timer if necessary, so we delay the check until the
860 ;; user isn't typing.
861 (unless mail-source-report-new-mail-idle-timer
862 (setq mail-source-report-new-mail-idle-timer
864 mail-source-idle-time-delay
868 (mail-source-check-pop mail-source-primary-source)
869 (setq mail-source-report-new-mail-idle-timer nil)))))
870 ;; Since idle timers created when Emacs is already in the idle
871 ;; state don't get activated until Emacs _next_ becomes idle, we
872 ;; need to force our timer to be considered active now. We do
873 ;; this by being naughty and poking the timer internals directly
874 ;; (element 0 of the vector is nil if the timer is active).
875 (aset mail-source-report-new-mail-idle-timer 0 nil)))
877 (defun mail-source-report-new-mail (arg)
878 "Toggle whether to report when new mail is available.
879 This only works when `display-time' is enabled."
881 (if (not mail-source-primary-source)
882 (error "Need to set `mail-source-primary-source' to check for new mail"))
883 (let ((on (if (null arg)
884 (not mail-source-report-new-mail)
885 (> (prefix-numeric-value arg) 0))))
886 (setq mail-source-report-new-mail on)
887 (and mail-source-report-new-mail-timer
888 (nnheader-cancel-timer mail-source-report-new-mail-timer))
889 (and mail-source-report-new-mail-idle-timer
890 (nnheader-cancel-timer mail-source-report-new-mail-idle-timer))
891 (setq mail-source-report-new-mail-timer nil)
892 (setq mail-source-report-new-mail-idle-timer nil)
896 ;; display-time-mail-function is an Emacs 21 feature.
897 (setq display-time-mail-function #'mail-source-new-mail-p)
898 ;; Set up the main timer.
899 (setq mail-source-report-new-mail-timer
900 (nnheader-run-at-time
901 (* 60 mail-source-report-new-mail-interval)
902 (* 60 mail-source-report-new-mail-interval)
903 #'mail-source-start-idle-timer))
904 ;; When you get new mail, clear "Mail" from the mode line.
905 (add-hook 'nnmail-post-get-new-mail-hook
906 'display-time-event-handler)
907 (message "Mail check enabled"))
908 (setq display-time-mail-function nil)
909 (remove-hook 'nnmail-post-get-new-mail-hook
910 'display-time-event-handler)
911 (message "Mail check disabled"))))
913 (defun mail-source-fetch-maildir (source callback)
914 "Fetcher for maildir sources."
915 (mail-source-bind (maildir source)
918 (unless (string-match "/$" path)
919 (setq path (concat path "/")))
920 (dolist (subdir subdirs)
921 (when (file-directory-p (concat path subdir))
922 (setq mail-source-string (format "maildir:%s%s" path subdir))
923 (dolist (file (directory-files (concat path subdir) t))
924 (when (and (not (file-directory-p file))
926 (funcall function file mail-source-crash-box)
927 (let ((coding-system-for-write
928 mm-text-coding-system)
929 (coding-system-for-read
930 mm-text-coding-system))
931 (with-temp-file mail-source-crash-box
932 (insert-file-contents file)
933 (goto-char (point-min))
934 ;;; ;; Unix mail format
935 ;;; (unless (looking-at "\n*From ")
936 ;;; (insert "From maildir "
937 ;;; (current-time-string) "\n"))
938 ;;; (while (re-search-forward "^From " nil t)
939 ;;; (replace-match ">From "))
940 ;;; (goto-char (point-max))
943 (insert "\001\001\001\001\n"))
944 (delete-file file)))))
945 (incf found (mail-source-callback callback file))))))
949 (autoload 'imap-open "imap")
950 (autoload 'imap-authenticate "imap")
951 (autoload 'imap-mailbox-select "imap")
952 (autoload 'imap-mailbox-unselect "imap")
953 (autoload 'imap-mailbox-close "imap")
954 (autoload 'imap-search "imap")
955 (autoload 'imap-fetch "imap")
956 (autoload 'imap-close "imap")
957 (autoload 'imap-error-text "imap")
958 (autoload 'imap-message-flags-add "imap")
959 (autoload 'imap-list-to-message-set "imap")
960 (autoload 'imap-range-to-message-set "imap")
961 (autoload 'nnheader-ms-strip-cr "nnheader"))
963 (defvar mail-source-imap-file-coding-system 'binary
964 "Coding system for the crashbox made by `mail-source-fetch-imap'.")
966 (defun mail-source-fetch-imap (source callback)
967 "Fetcher for imap sources."
968 (mail-source-bind (imap source)
969 (let ((from (format "%s:%s:%s" server user port))
971 (buf (generate-new-buffer " *imap source*"))
972 (mail-source-string (format "imap:%s:%s" server mailbox))
973 (imap-shell-program (or (list program) imap-shell-program))
975 (if (and (imap-open server port stream authentication buf)
977 user (or (cdr (assoc from mail-source-password-cache))
979 (imap-mailbox-select mailbox nil buf))
980 (let ((coding-system-for-write mail-source-imap-file-coding-system)
982 (with-temp-file mail-source-crash-box
983 ;; Avoid converting 8-bit chars from inserted strings to
985 (mm-disable-multibyte)
987 (with-current-buffer buf
988 (when (or imap-password
989 (assoc from mail-source-password-cache))
990 (push (cons from imap-password) mail-source-password-cache)))
991 ;; if predicate is nil, use all uids
992 (dolist (uid (imap-search (or predicate "1:*") buf))
994 (if (imap-capability 'IMAP4rev1 buf)
995 (caddar (imap-fetch uid "BODY.PEEK[]"
996 'BODYDETAIL nil buf))
997 (imap-fetch uid "RFC822.PEEK" 'RFC822 nil buf)))
999 (insert "From imap " (current-time-string) "\n")
1001 (insert str "\n\n"))
1002 (while (re-search-forward "^From " nil t)
1003 (replace-match ">From "))
1004 (goto-char (point-max))))
1005 (nnheader-ms-strip-cr))
1006 (incf found (mail-source-callback callback server))
1007 (when (and remove fetchflag)
1008 (setq remove (nreverse remove))
1009 (imap-message-flags-add
1010 (imap-range-to-message-set (gnus-compress-sequence remove))
1013 (imap-mailbox-unselect buf)
1014 (imap-mailbox-close nil buf))
1017 ;; We nix out the password in case the error
1018 ;; was because of a wrong password being given.
1019 (setq mail-source-password-cache
1020 (delq (assoc from mail-source-password-cache)
1021 mail-source-password-cache))
1022 (error "IMAP error: %s" (imap-error-text buf)))
1027 (autoload 'webmail-fetch "webmail"))
1029 (defun mail-source-fetch-webmail (source callback)
1030 "Fetch for webmail source."
1031 (mail-source-bind (webmail source)
1032 (let ((mail-source-string (format "webmail:%s:%s" subtype user))
1033 (webmail-newmail-only dontexpunge)
1034 (webmail-move-to-trash-can (not dontexpunge)))
1035 (when (eq authentication 'password)
1038 (cdr (assoc (format "webmail:%s:%s" subtype user)
1039 mail-source-password-cache))
1041 (format "Password for %s at %s: " user subtype))))
1043 (not (assoc (format "webmail:%s:%s" subtype user)
1044 mail-source-password-cache)))
1045 (push (cons (format "webmail:%s:%s" subtype user) password)
1046 mail-source-password-cache)))
1047 (webmail-fetch mail-source-crash-box subtype user password)
1048 (mail-source-callback callback (symbol-name subtype)))))
1050 (provide 'mail-source)
1052 ;;; mail-source.el ends here