1 ;;; mail-source.el --- functions for fetching mail
3 ;; Copyright (C) 1999-2011 Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Keywords: news, mail
8 ;; This file is part of GNU Emacs.
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.
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.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
27 ;; For Emacs <22.2 and XEmacs.
29 (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
31 (require 'format-spec)
35 (autoload 'auth-source-user-or-password "auth-source")
36 (autoload 'pop3-movemail "pop3")
37 (autoload 'pop3-get-message-count "pop3")
38 (autoload 'nnheader-cancel-timer "nnheader")
40 (require 'message) ;; for `message-directory'
42 (defvar display-time-mail-function)
44 (defgroup mail-source nil
45 "The mail-fetching library."
49 ;; Define these at compile time to avoid dragging in imap always.
50 (defconst mail-source-imap-authenticators
53 (list 'const (car a)))
54 imap-authenticator-alist)))
55 (defconst mail-source-imap-streams
58 (list 'const (car a)))
61 (defcustom mail-sources '((file))
62 "Where the mail backends will look for incoming mail.
63 This variable is a list of mail source specifiers.
64 See Info node `(gnus)Mail Source Specifiers'."
66 :version "23.1" ;; No Gnus
67 :link '(custom-manual "(gnus)Mail Source Specifiers")
69 (const :tag "None" nil)
71 (choice :format "%[Value Menu%] %v"
73 (cons :tag "Group parameter `mail-source'"
74 (const :format "" group))
75 (cons :tag "Spool file"
76 (const :format "" file)
77 (checklist :tag "Options" :greedy t
79 (const :format "" :value :path)
81 (cons :tag "Several files in a directory"
82 (const :format "" directory)
83 (checklist :tag "Options" :greedy t
85 (const :format "" :value :path)
86 (directory :tag "Path"))
88 (const :format "" :value :suffix)
89 (string :tag "Suffix"))
91 (const :format "" :value :predicate)
92 (function :tag "Predicate"))
94 (const :format "" :value :prescript)
95 (choice :tag "Prescript"
98 (function :format "%v")))
100 (const :format "" :value :postscript)
101 (choice :tag "Postscript"
103 (string :format "%v")
104 (function :format "%v")))
106 (const :format "" :value :plugged)
107 (boolean :tag "Plugged"))))
108 (cons :tag "POP3 server"
109 (const :format "" pop)
110 (checklist :tag "Options" :greedy t
112 (const :format "" :value :server)
113 (string :tag "Server"))
115 (const :format "" :value :port)
118 (integer :format "%v")
119 (string :format "%v")))
121 (const :format "" :value :user)
122 (string :tag "User"))
124 (const :format "" :value :password)
125 (string :tag "Password"))
127 (const :format "" :value :program)
128 (string :tag "Program"))
130 (const :format "" :value :prescript)
131 (choice :tag "Prescript"
133 (string :format "%v")
134 (function :format "%v")
135 (const :tag "None" nil)))
137 (const :format "" :value :postscript)
138 (choice :tag "Postscript"
140 (string :format "%v")
141 (function :format "%v")
142 (const :tag "None" nil)))
144 (const :format "" :value :function)
145 (function :tag "Function"))
148 :value :authentication)
149 (choice :tag "Authentication"
154 (const :format "" :value :plugged)
155 (boolean :tag "Plugged"))
157 (const :format "" :value :stream)
158 (choice :tag "Stream"
160 (const :tag "Clear" nil)
162 (const :tag "SSL/TLS" ssl)))))
163 (cons :tag "Maildir (qmail, postfix...)"
164 (const :format "" maildir)
165 (checklist :tag "Options" :greedy t
167 (const :format "" :value :path)
168 (directory :tag "Path"))
170 (const :format "" :value :plugged)
171 (boolean :tag "Plugged"))))
172 (cons :tag "IMAP server"
173 (const :format "" imap)
174 (checklist :tag "Options" :greedy t
176 (const :format "" :value :server)
177 (string :tag "Server"))
179 (const :format "" :value :port)
184 (const :format "" :value :user)
185 (string :tag "User"))
187 (const :format "" :value :password)
188 (string :tag "Password"))
190 (const :format "" :value :stream)
191 (choice :tag "Stream"
193 ,@mail-source-imap-streams))
195 (const :format "" :value :program)
196 (string :tag "Program"))
199 :value :authenticator)
200 (choice :tag "Authenticator"
202 ,@mail-source-imap-authenticators))
204 (const :format "" :value :mailbox)
205 (string :tag "Mailbox"
208 (const :format "" :value :predicate)
209 (string :tag "Predicate"
210 :value "UNSEEN UNDELETED"))
212 (const :format "" :value :fetchflag)
213 (string :tag "Fetchflag"
218 (boolean :tag "Dontexpunge"))
220 (const :format "" :value :plugged)
221 (boolean :tag "Plugged"))))))))
223 (defcustom mail-source-ignore-errors nil
224 "*Ignore errors when querying mail sources.
225 If nil, the user will be prompted when an error occurs. If non-nil,
226 the error will be ignored."
231 (defcustom mail-source-primary-source nil
232 "*Primary source for incoming mail.
233 If non-nil, this maildrop will be checked periodically for new mail."
237 (defcustom mail-source-flash t
238 "*If non-nil, flash periodically when mail is available."
242 (defcustom mail-source-crash-box "~/.emacs-mail-crash-box"
243 "File where mail will be stored while processing it."
247 (defcustom mail-source-directory message-directory
248 "Directory where incoming mail source files (if any) will be stored."
252 (defcustom mail-source-default-file-modes 384
253 "Set the mode bits of all new mail files to this integer."
257 (defcustom mail-source-delete-incoming
258 10 ;; development versions
259 ;; 2 ;; released versions
260 "If non-nil, delete incoming files after handling.
261 If t, delete immediately, if nil, never delete. If a positive number, delete
262 files older than number of days.
264 Removing of old files happens in `mail-source-callback', i.e. no
265 old incoming files will be deleted unless you receive new mail.
266 You may also set this variable to nil and call
267 `mail-source-delete-old-incoming' interactively."
269 :version "22.2" ;; No Gnus / Gnus 5.10.10 (default changed)
270 :type '(choice (const :tag "immediately" t)
271 (const :tag "never" nil)
272 (integer :tag "days")))
274 (defcustom mail-source-delete-old-incoming-confirm nil
275 "If non-nil, ask for confirmation before deleting old incoming files.
276 This variable only applies when `mail-source-delete-incoming' is a positive
278 :version "22.2" ;; No Gnus / Gnus 5.10.10 (default changed)
282 (defcustom mail-source-incoming-file-prefix "Incoming"
283 "Prefix for file name for storing incoming mail"
287 (defcustom mail-source-report-new-mail-interval 5
288 "Interval in minutes between checks for new mail."
292 (defcustom mail-source-idle-time-delay 5
293 "Number of idle seconds to wait before checking for new mail."
297 (defcustom mail-source-movemail-program nil
298 "If non-nil, name of program for fetching new mail."
301 :type '(choice (const nil) string))
303 ;;; Internal variables.
305 (defvar mail-source-string ""
306 "A dynamically bound string that says what the current mail source is.")
308 (defvar mail-source-new-mail-available nil
309 "Flag indicating when new mail is available.")
312 (defvar mail-source-common-keyword-map
314 "Mapping from keywords to default values.
315 Common keywords should be listed here.")
317 (defvar mail-source-keyword-map
322 (:path (or (getenv "MAIL")
323 (expand-file-name (user-login-name) rmail-spool-directory))))
330 (:predicate identity))
335 (:server (getenv "MAILHOST"))
337 (:user (or (user-login-name) (getenv "LOGNAME") (getenv "USER")))
341 (:authentication password)
344 (:path (or (getenv "MAILDIR") "~/Maildir/"))
345 (:subdirs ("cur" "new"))
348 (:server (getenv "MAILHOST"))
353 (:user (or (user-login-name) (getenv "LOGNAME") (getenv "USER")))
356 (:predicate "UNSEEN UNDELETED")
357 (:fetchflag "\\Deleted")
362 "Mapping from keywords to default values.
363 All keywords that can be used must be listed here."))
365 (defvar mail-source-fetcher-alist
366 '((file mail-source-fetch-file)
367 (directory mail-source-fetch-directory)
368 (pop mail-source-fetch-pop)
369 (maildir mail-source-fetch-maildir)
370 (imap mail-source-fetch-imap))
371 "A mapping from source type to fetcher function.")
373 (defvar mail-source-password-cache nil)
375 (defvar mail-source-plugged t)
380 (defun mail-source-strip-keyword (keyword)
381 "Strip the leading colon off the KEYWORD."
382 (intern (substring (symbol-name keyword) 1))))
384 ;; generate a list of variable names paired with nil values
385 ;; suitable for usage in a `let' form
387 (defun mail-source-bind-1 (type)
388 (let* ((defaults (cdr (assq type mail-source-keyword-map)))
390 (while (setq default (pop defaults))
391 (push (list (mail-source-strip-keyword (car default))
396 (defmacro mail-source-bind (type-source &rest body)
397 "Return a `let' form that binds all variables in source TYPE.
398 TYPE-SOURCE is a list where the first element is the TYPE, and
399 the second variable is the SOURCE.
400 At run time, the mail source specifier SOURCE will be inspected,
401 and the variables will be set according to it. Variables not
402 specified will be given default values.
404 The user and password will be loaded from the auth-source values
405 if those are available. They override the original user and
406 password in a second `let' form.
408 After this is done, BODY will be executed in the scope
409 of the second `let' form.
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 ;; TODO: use the list format for auth-source-user-or-password modes
421 (defun mail-source-set-1 (source)
422 (let* ((type (pop source))
423 (defaults (cdr (assq type mail-source-keyword-map)))
424 default value keyword auth-info user-auth pass-auth)
425 (while (setq default (pop defaults))
426 ;; for each default :SYMBOL, set SYMBOL to the plist value for :SYMBOL
427 ;; using `mail-source-value' to evaluate the plist value
428 (set (mail-source-strip-keyword (setq keyword (car default)))
429 ;; note the following reasons for this structure:
430 ;; 1) the auth-sources user and password override everything
431 ;; 2) it avoids macros, so it's cleaner
432 ;; 3) it falls through to the mail-sources and then default values
437 (nth 0 (auth-source-user-or-password
438 '("login" "password")
439 ;; this is "host" in auth-sources
440 (if (boundp 'server) (symbol-value 'server) "")
444 (eq keyword :password)
447 (auth-source-user-or-password
448 '("login" "password")
449 ;; this is "host" in auth-sources
450 (if (boundp 'server) (symbol-value 'server) "")
453 (t (if (setq value (plist-get source keyword))
454 (mail-source-value value)
455 (mail-source-value (cadr default)))))))))
458 (defun mail-source-bind-common-1 ()
459 (let* ((defaults mail-source-common-keyword-map)
461 (while (setq default (pop defaults))
462 (push (list (mail-source-strip-keyword (car default))
467 (defun mail-source-set-common-1 (source)
468 (let* ((type (pop source))
469 (defaults mail-source-common-keyword-map)
470 (defaults-1 (cdr (assq type mail-source-keyword-map)))
471 default value keyword)
472 (while (setq default (pop defaults))
473 (set (mail-source-strip-keyword (setq keyword (car default)))
474 (if (setq value (plist-get source keyword))
475 (mail-source-value value)
476 (if (setq value (assq keyword defaults-1))
477 (mail-source-value (cadr value))
478 (mail-source-value (cadr default))))))))
480 (defmacro mail-source-bind-common (source &rest body)
481 "Return a `let' form that binds all common variables.
482 See `mail-source-bind'."
483 `(let ,(mail-source-bind-common-1)
484 (mail-source-set-common-1 source)
487 (put 'mail-source-bind-common 'lisp-indent-function 1)
488 (put 'mail-source-bind-common 'edebug-form-spec '(sexp body))
490 (defun mail-source-value (value)
491 "Return the value of VALUE."
497 ((and (listp value) (symbolp (car value)) (fboundp (car value)))
499 ;; Just return the value.
503 (autoload 'nnheader-message "nnheader")
505 (defun mail-source-fetch (source callback &optional method)
506 "Fetch mail from SOURCE and call CALLBACK zero or more times.
507 CALLBACK will be called with the name of the file where (some of)
508 the mail from SOURCE is put.
509 Return the number of files that were found."
510 (mail-source-bind-common source
511 (if (or mail-source-plugged plugged)
513 ;; Special-case the `file' handler since it's so common and
515 (when (or (not (eq (car source) 'file))
516 (mail-source-bind (file source)
517 (file-exists-p path)))
518 (nnheader-message 4 "%sReading incoming mail from %s..."
520 (format "%s: " method)
523 (let ((function (cadr (assq (car source) mail-source-fetcher-alist)))
526 (error "%S is an invalid mail source specification" source))
527 ;; If there's anything in the crash box, we do it first.
528 (when (file-exists-p mail-source-crash-box)
529 (message "Processing mail from %s..." mail-source-crash-box)
530 (setq found (mail-source-callback
531 callback mail-source-crash-box))
532 (mail-source-delete-crash-box))
534 (if (or debug-on-quit debug-on-error)
535 (funcall function source callback)
537 (funcall function source callback)
539 (if (and (not mail-source-ignore-errors)
542 (format "Mail source %s error (%s). Continue? "
543 (if (memq ':password source)
544 (let ((s (copy-sequence source)))
545 (setcar (cdr (memq ':password s))
550 (error "Cannot get new mail"))
553 (declare-function gnus-message "gnus-util" (level &rest args))
555 (defun mail-source-delete-old-incoming (&optional age confirm)
556 "Remove incoming files older than AGE days.
557 If CONFIRM is non-nil, ask for confirmation before removing a file."
560 (let* ((high2days (/ 65536.0 60 60 24));; convert high bits to days
561 (low2days (/ 1.0 65536.0)) ;; convert low bits to days
562 (diff (if (natnump age) age 30));; fallback, if no valid AGE given
564 (setq files (directory-files
565 mail-source-directory t
567 (regexp-quote mail-source-incoming-file-prefix)))
568 currday (* (car (current-time)) high2days)
569 currday (+ currday (* low2days (nth 1 (current-time)))))
571 (let* ((ffile (car files))
572 (bfile (gnus-replace-in-string
573 ffile "\\`.*/\\([^/]+\\)\\'" "\\1"))
574 (filetime (nth 5 (file-attributes ffile)))
575 (fileday (* (car filetime) high2days))
576 (fileday (+ fileday (* low2days (nth 1 filetime)))))
577 (setq files (cdr files))
578 (when (and (> (- currday fileday) diff)
582 Delete old (> %s day(s)) incoming mail file `%s'? " diff bfile))
584 Deleting old (> %s day(s)) incoming mail file `%s'." diff bfile)
586 (delete-file ffile))))))
588 (defun mail-source-callback (callback info)
589 "Call CALLBACK on the mail file. Pass INFO on to CALLBACK."
590 (if (or (not (file-exists-p mail-source-crash-box))
591 (zerop (nth 7 (file-attributes mail-source-crash-box))))
593 (when (file-exists-p mail-source-crash-box)
594 (delete-file mail-source-crash-box))
596 (funcall callback mail-source-crash-box info)))
598 (autoload 'gnus-float-time "gnus-util")
600 (defvar mail-source-incoming-last-checked-time nil)
602 (defun mail-source-delete-crash-box ()
603 (when (file-exists-p mail-source-crash-box)
604 ;; Delete or move the incoming mail out of the way.
605 (if (eq mail-source-delete-incoming t)
606 (delete-file mail-source-crash-box)
610 mail-source-incoming-file-prefix
611 mail-source-directory))))
612 (unless (file-exists-p (file-name-directory incoming))
613 (make-directory (file-name-directory incoming) t))
614 (rename-file mail-source-crash-box incoming t)
615 ;; remove old incoming files?
616 (when (natnump mail-source-delete-incoming)
617 ;; Don't check for old incoming files more than once per day to
618 ;; save a lot of file accesses.
619 (when (or (null mail-source-incoming-last-checked-time)
621 (time-since mail-source-incoming-last-checked-time))
623 (setq mail-source-incoming-last-checked-time (current-time))
624 (mail-source-delete-old-incoming
625 mail-source-delete-incoming
626 mail-source-delete-old-incoming-confirm)))))))
628 (defun mail-source-movemail (from to)
629 "Move FROM to TO using movemail."
630 (if (not (file-writable-p to))
631 (error "Can't write to crash box %s. Not moving mail" to)
632 (let ((to (file-truename (expand-file-name to)))
634 (setq to (file-truename to)
635 from (file-truename from))
636 ;; Set TO if have not already done so, and rename or copy
637 ;; the file FROM to TO if and as appropriate.
640 ;; The crash box exists already.
642 ((not (file-exists-p from))
643 ;; There is no inbox.
645 ((zerop (nth 7 (file-attributes from)))
649 ;; If getting from mail spool directory, use movemail to move
650 ;; rather than just renaming, so as to interlock with the
654 (setq errors (generate-new-buffer " *mail source loss*"))
655 (let ((default-directory "/"))
661 (or mail-source-movemail-program
662 (expand-file-name "movemail" exec-directory))
663 nil errors nil from to)))))
664 (when (file-exists-p to)
665 (set-file-modes to mail-source-default-file-modes))
666 (if (and (or (not (buffer-modified-p errors))
667 (zerop (buffer-size errors)))
668 (and (numberp result)
670 ;; No output => movemail won.
673 ;; There may be a warning about older revisions. We
675 (goto-char (point-min))
676 (if (search-forward "older revision" nil t)
678 ;; Probably a real error.
679 (subst-char-in-region (point-min) (point-max) ?\n ?\ )
680 (goto-char (point-max))
681 (skip-chars-backward " \t")
682 (delete-region (point) (point-max))
683 (goto-char (point-min))
684 (when (looking-at "movemail: ")
685 (delete-region (point-min) (match-end 0)))
686 ;; Result may be a signal description string.
688 (format "movemail: %s (%s return). Continue? "
689 (buffer-string) result))
690 (error "%s" (buffer-string)))
693 (buffer-name errors))
694 (kill-buffer errors))
695 ;; Return whether we moved successfully or not.
698 (defun mail-source-movemail-and-remove (from to)
699 "Move FROM to TO using movemail, then remove FROM if empty."
700 (or (not (mail-source-movemail from to))
701 (not (zerop (nth 7 (file-attributes from))))
704 (defun mail-source-fetch-with-program (program)
705 (eq 0 (call-process shell-file-name nil nil nil
706 shell-command-switch program)))
708 (defun mail-source-run-script (script spec &optional delay)
710 (if (functionp script)
712 (mail-source-call-script
713 (format-spec script spec))))
717 (defun mail-source-call-script (script)
718 (let ((background nil)
719 (stderr (get-buffer-create " *mail-source-stderr*"))
721 (when (string-match "& *$" script)
722 (setq script (substring script 0 (match-beginning 0))
725 (call-process shell-file-name nil background nil
726 shell-command-switch script))
728 (not (zerop result)))
730 (message "Mail source error: %s" (buffer-string)))
731 (kill-buffer stderr)))
734 ;;; Different fetchers
737 (defun mail-source-fetch-file (source callback)
738 "Fetcher for single-file sources."
739 (mail-source-bind (file source)
740 (mail-source-run-script
741 prescript (format-spec-make ?t mail-source-crash-box)
743 (let ((mail-source-string (format "file:%s" path)))
744 (if (mail-source-movemail path mail-source-crash-box)
746 (mail-source-callback callback path)
747 (mail-source-run-script
748 postscript (format-spec-make ?t mail-source-crash-box))
749 (mail-source-delete-crash-box))
752 (defun mail-source-fetch-directory (source callback)
753 "Fetcher for directory sources."
754 (mail-source-bind (directory source)
755 (mail-source-run-script
756 prescript (format-spec-make ?t path) prescript-delay)
758 (mail-source-string (format "directory:%s" path)))
759 (dolist (file (directory-files
760 path t (concat (regexp-quote suffix) "$")))
761 (when (and (file-regular-p file)
762 (funcall predicate file)
763 (mail-source-movemail file mail-source-crash-box))
764 (incf found (mail-source-callback callback file))
765 (mail-source-run-script postscript (format-spec-make ?t path))
766 (mail-source-delete-crash-box)))
769 (defun mail-source-fetch-pop (source callback)
770 "Fetcher for single-file sources."
771 (mail-source-bind (pop source)
772 ;; fixme: deal with stream type in format specs
773 (mail-source-run-script
775 (format-spec-make ?p password ?t mail-source-crash-box
776 ?s server ?P port ?u user)
778 (let ((from (format "%s:%s:%s" server user port))
779 (mail-source-string (format "pop:%s@%s" user server))
781 (when (eq authentication 'password)
784 (cdr (assoc from mail-source-password-cache))
786 (format "Password for %s at %s: " user server)))))
788 (setenv "MAILHOST" server))
792 (mail-source-fetch-with-program
795 (format-spec-make ?p password ?t mail-source-crash-box
796 ?s server ?P port ?u user))))
798 (funcall function mail-source-crash-box))
799 ;; The default is to use pop3.el.
802 (let ((pop3-password password)
804 (pop3-mailhost server)
806 (pop3-authentication-scheme
807 (if (eq authentication 'apop) 'apop 'pass))
808 (pop3-stream-type stream))
809 (if (or debug-on-quit debug-on-error)
810 (save-excursion (pop3-movemail mail-source-crash-box))
812 (save-excursion (pop3-movemail mail-source-crash-box))
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))
819 (signal (car err) (cdr err)))))))))
822 (when (eq authentication 'password)
823 (unless (assoc from mail-source-password-cache)
824 (push (cons from password) mail-source-password-cache)))
826 (mail-source-callback callback server)
827 ;; Update display-time's mail flag, if relevant.
828 (if (equal source mail-source-primary-source)
829 (setq mail-source-new-mail-available nil))
830 (mail-source-run-script
832 (format-spec-make ?p password ?t mail-source-crash-box
833 ?s server ?P port ?u user))
834 (mail-source-delete-crash-box)))
835 ;; We nix out the password in case the error
836 ;; was because of a wrong password being given.
837 (setq mail-source-password-cache
838 (delq (assoc from mail-source-password-cache)
839 mail-source-password-cache))
842 (defun mail-source-check-pop (source)
843 "Check whether there is new mail."
844 (mail-source-bind (pop source)
845 (let ((from (format "%s:%s:%s" server user port))
846 (mail-source-string (format "pop:%s@%s" user server))
848 (when (eq authentication 'password)
851 (cdr (assoc from mail-source-password-cache))
853 (format "Password for %s at %s: " user server))))
854 (unless (assoc from mail-source-password-cache)
855 (push (cons from password) mail-source-password-cache)))
857 (setenv "MAILHOST" server))
860 ;; No easy way to check whether mail is waiting for these.
863 ;; The default is to use pop3.el.
866 (let ((pop3-password password)
868 (pop3-mailhost server)
870 (pop3-authentication-scheme
871 (if (eq authentication 'apop) 'apop 'pass)))
872 (if (or debug-on-quit debug-on-error)
873 (save-excursion (pop3-get-message-count))
875 (save-excursion (pop3-get-message-count))
877 ;; We nix out the password in case the error
878 ;; was because of a wrong password being given.
879 (setq mail-source-password-cache
880 (delq (assoc from mail-source-password-cache)
881 mail-source-password-cache))
882 (signal (car err) (cdr err)))))))))
884 ;; Inform display-time that we have new mail.
885 (setq mail-source-new-mail-available (> result 0))
886 ;; We nix out the password in case the error
887 ;; was because of a wrong password being given.
888 (setq mail-source-password-cache
889 (delq (assoc from mail-source-password-cache)
890 mail-source-password-cache)))
893 (defun mail-source-touch-pop ()
894 "Open and close a POP connection shortly.
895 POP server should be defined in `mail-source-primary-source' (which is
896 preferred) or `mail-sources'. You may use it for the POP-before-SMTP
897 authentication. To do that, you need to set the
898 `message-send-mail-function' variable as `message-smtpmail-send-it'
899 and put the following line in your ~/.gnus.el file:
901 \(add-hook 'message-send-mail-hook 'mail-source-touch-pop)
903 See the Gnus manual for details."
904 (let ((sources (if mail-source-primary-source
905 (list mail-source-primary-source)
908 (if (eq 'pop (car (car sources)))
909 (mail-source-check-pop (car sources)))
910 (setq sources (cdr sources)))))
912 (defun mail-source-new-mail-p ()
913 "Handler for `display-time' to indicate when new mail is available."
914 ;; Flash (ie. ring the visible bell) if mail is available.
915 (if (and mail-source-flash mail-source-new-mail-available)
916 (let ((visible-bell t))
918 ;; Only report flag setting; flag is updated on a different schedule.
919 mail-source-new-mail-available)
922 (defvar mail-source-report-new-mail nil)
923 (defvar mail-source-report-new-mail-timer nil)
924 (defvar mail-source-report-new-mail-idle-timer nil)
926 (defun mail-source-start-idle-timer ()
927 ;; Start our idle timer if necessary, so we delay the check until the
928 ;; user isn't typing.
929 (unless mail-source-report-new-mail-idle-timer
930 (setq mail-source-report-new-mail-idle-timer
932 mail-source-idle-time-delay
936 (mail-source-check-pop mail-source-primary-source)
937 (setq mail-source-report-new-mail-idle-timer nil)))))
938 ;; Since idle timers created when Emacs is already in the idle
939 ;; state don't get activated until Emacs _next_ becomes idle, we
940 ;; need to force our timer to be considered active now. We do
941 ;; this by being naughty and poking the timer internals directly
942 ;; (element 0 of the vector is nil if the timer is active).
943 (aset mail-source-report-new-mail-idle-timer 0 nil)))
945 (defun mail-source-report-new-mail (arg)
946 "Toggle whether to report when new mail is available.
947 This only works when `display-time' is enabled."
949 (if (not mail-source-primary-source)
950 (error "Need to set `mail-source-primary-source' to check for new mail"))
951 (let ((on (if (null arg)
952 (not mail-source-report-new-mail)
953 (> (prefix-numeric-value arg) 0))))
954 (setq mail-source-report-new-mail on)
955 (and mail-source-report-new-mail-timer
956 (nnheader-cancel-timer mail-source-report-new-mail-timer))
957 (and mail-source-report-new-mail-idle-timer
958 (nnheader-cancel-timer mail-source-report-new-mail-idle-timer))
959 (setq mail-source-report-new-mail-timer nil)
960 (setq mail-source-report-new-mail-idle-timer nil)
964 ;; display-time-mail-function is an Emacs feature.
965 (setq display-time-mail-function #'mail-source-new-mail-p)
966 ;; Set up the main timer.
967 (setq mail-source-report-new-mail-timer
969 (* 60 mail-source-report-new-mail-interval)
970 (* 60 mail-source-report-new-mail-interval)
971 #'mail-source-start-idle-timer))
972 ;; When you get new mail, clear "Mail" from the mode line.
973 (add-hook 'nnmail-post-get-new-mail-hook
974 'display-time-event-handler)
975 (message "Mail check enabled"))
976 (setq display-time-mail-function nil)
977 (remove-hook 'nnmail-post-get-new-mail-hook
978 'display-time-event-handler)
979 (message "Mail check disabled"))))
981 (defun mail-source-fetch-maildir (source callback)
982 "Fetcher for maildir sources."
983 (mail-source-bind (maildir source)
986 (unless (string-match "/$" path)
987 (setq path (concat path "/")))
988 (dolist (subdir subdirs)
989 (when (file-directory-p (concat path subdir))
990 (setq mail-source-string (format "maildir:%s%s" path subdir))
991 (dolist (file (directory-files (concat path subdir) t))
992 (when (and (not (file-directory-p file))
994 (funcall function file mail-source-crash-box)
995 (let ((coding-system-for-write
996 mm-text-coding-system)
997 (coding-system-for-read
998 mm-text-coding-system))
999 (with-temp-file mail-source-crash-box
1000 (insert-file-contents file)
1001 (goto-char (point-min))
1002 ;;; ;; Unix mail format
1003 ;;; (unless (looking-at "\n*From ")
1004 ;;; (insert "From maildir "
1005 ;;; (current-time-string) "\n"))
1006 ;;; (while (re-search-forward "^From " nil t)
1007 ;;; (replace-match ">From "))
1008 ;;; (goto-char (point-max))
1011 (insert "\001\001\001\001\n"))
1012 (delete-file file)))))
1013 (incf found (mail-source-callback callback file))
1014 (mail-source-delete-crash-box)))))
1017 (autoload 'imap-open "imap")
1018 (autoload 'imap-authenticate "imap")
1019 (autoload 'imap-mailbox-select "imap")
1020 (autoload 'imap-mailbox-unselect "imap")
1021 (autoload 'imap-mailbox-close "imap")
1022 (autoload 'imap-search "imap")
1023 (autoload 'imap-fetch "imap")
1024 (autoload 'imap-close "imap")
1025 (autoload 'imap-error-text "imap")
1026 (autoload 'imap-message-flags-add "imap")
1027 (autoload 'imap-list-to-message-set "imap")
1028 (autoload 'imap-range-to-message-set "imap")
1029 (autoload 'nnheader-ms-strip-cr "nnheader")
1031 (autoload 'gnus-compress-sequence "gnus-range")
1033 (defvar mail-source-imap-file-coding-system 'binary
1034 "Coding system for the crashbox made by `mail-source-fetch-imap'.")
1036 ;; Autoloads will bring in imap before this is called.
1037 (declare-function imap-capability "imap" (&optional identifier buffer))
1039 (defun mail-source-fetch-imap (source callback)
1040 "Fetcher for imap sources."
1041 (mail-source-bind (imap source)
1042 (mail-source-run-script
1043 prescript (format-spec-make ?p password ?t mail-source-crash-box
1044 ?s server ?P port ?u user)
1046 (let ((from (format "%s:%s:%s" server user port))
1048 (buf (generate-new-buffer " *imap source*"))
1049 (mail-source-string (format "imap:%s:%s" server mailbox))
1050 (imap-shell-program (or (list program) imap-shell-program))
1052 (if (and (imap-open server port stream authentication buf)
1054 user (or (cdr (assoc from mail-source-password-cache))
1056 (imap-mailbox-select mailbox nil buf))
1057 (let ((coding-system-for-write mail-source-imap-file-coding-system)
1059 (with-temp-file mail-source-crash-box
1060 ;; Avoid converting 8-bit chars from inserted strings to
1062 (mm-disable-multibyte)
1063 ;; remember password
1064 (with-current-buffer buf
1065 (when (and imap-password
1066 (not (assoc from mail-source-password-cache)))
1067 (push (cons from imap-password) mail-source-password-cache)))
1068 ;; if predicate is nil, use all uids
1069 (dolist (uid (imap-search (or predicate "1:*") buf))
1071 (if (imap-capability 'IMAP4rev1 buf)
1072 (caddar (imap-fetch uid "BODY.PEEK[]"
1073 'BODYDETAIL nil buf))
1074 (imap-fetch uid "RFC822.PEEK" 'RFC822 nil buf)))
1076 (insert "From imap " (current-time-string) "\n")
1078 (insert str "\n\n"))
1079 (while (let ((case-fold-search nil))
1080 (re-search-forward "^From " nil t))
1081 (replace-match ">From "))
1082 (goto-char (point-max))))
1083 (nnheader-ms-strip-cr))
1084 (incf found (mail-source-callback callback server))
1085 (mail-source-delete-crash-box)
1086 (when (and remove fetchflag)
1087 (setq remove (nreverse remove))
1088 (imap-message-flags-add
1089 (imap-range-to-message-set (gnus-compress-sequence remove))
1092 (imap-mailbox-unselect buf)
1093 (imap-mailbox-close nil buf))
1096 ;; We nix out the password in case the error
1097 ;; was because of a wrong password being given.
1098 (setq mail-source-password-cache
1099 (delq (assoc from mail-source-password-cache)
1100 mail-source-password-cache))
1101 (error "IMAP error: %s" (imap-error-text buf)))
1103 (mail-source-run-script
1105 (format-spec-make ?p password ?t mail-source-crash-box
1106 ?s server ?P port ?u user))
1109 (provide 'mail-source)
1111 ;;; mail-source.el ends here