1 ;;; nnimap.el --- IMAP interface for Gnus
3 ;; Copyright (C) 2010 Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Simon Josefsson <simon@josefsson.org>
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/>.
25 ;; nnimap interfaces Gnus with IMAP servers.
44 (autoload 'auth-source-forget-user-or-password "auth-source")
45 (autoload 'auth-source-user-or-password "auth-source")
49 (defvoo nnimap-address nil
50 "The address of the IMAP server.")
52 (defvoo nnimap-server-port nil
54 If nnimap-stream is `ssl', this will default to `imaps'. If not,
55 it will default to `imap'.")
57 (defvoo nnimap-stream 'ssl
58 "How nnimap will talk to the IMAP server.
59 Values are `ssl', `network', `starttls' or `shell'.")
61 (defvoo nnimap-shell-program (if (boundp 'imap-shell-program)
62 (if (listp imap-shell-program)
63 (car imap-shell-program)
67 (defvoo nnimap-inbox nil
68 "The mail box where incoming mail arrives and should be split out of.")
70 (defvoo nnimap-split-methods nil
72 Uses the same syntax as nnmail-split-methods")
74 (defvoo nnimap-split-fancy nil
75 "Uses the same syntax as nnmail-split-fancy.")
77 (make-obsolete-variable 'nnimap-split-rule "see `nnimap-split-methods'"
80 (defvoo nnimap-authenticator nil
81 "How nnimap authenticate itself to the server.
82 Possible choices are nil (use default methods) or `anonymous'.")
84 (defvoo nnimap-expunge t
85 "If non-nil, expunge articles after deleting them.
86 This is always done if the server supports UID EXPUNGE, but it's
87 not done by default on servers that doesn't support that command.")
89 (defvoo nnimap-streaming t
90 "If non-nil, try to use streaming commands with IMAP servers.
91 Switching this off will make nnimap slower, but it helps with
94 (defvoo nnimap-connection-alist nil)
96 (defvoo nnimap-current-infos nil)
98 (defvoo nnimap-fetch-partial-articles nil
99 "If non-nil, Gnus will fetch partial articles.
100 If t, nnimap will fetch only the first part. If a string, it
101 will fetch all parts that have types that match that string. A
102 likely value would be \"text/\" to automatically fetch all
105 (defvar nnimap-process nil)
107 (defvar nnimap-status-string "")
109 (defvar nnimap-split-download-body-default nil
110 "Internal variable with default value for `nnimap-split-download-body'.")
112 (defvar nnimap-keepalive-timer nil)
113 (defvar nnimap-process-buffers nil)
116 group process commands capabilities select-result newlinep server
117 last-command-time greeting)
119 (defvar nnimap-object nil)
121 (defvar nnimap-mark-alist
122 '((read "\\Seen" %Seen)
123 (tick "\\Flagged" %Flagged)
124 (reply "\\Answered" %Answered)
125 (expire "gnus-expire")
126 (dormant "gnus-dormant")
129 (download "gnus-download")
130 (forward "gnus-forward")))
132 (defun nnimap-buffer ()
133 (nnimap-find-process-buffer nntp-server-buffer))
135 (deffoo nnimap-retrieve-headers (articles &optional group server fetch-old)
136 (with-current-buffer nntp-server-buffer
138 (when (nnimap-possibly-change-group group server)
139 (with-current-buffer (nnimap-buffer)
141 (nnimap-wait-for-response
144 (nnimap-article-ranges (gnus-compress-sequence articles))
145 (format "(UID RFC822.SIZE BODYSTRUCTURE %s)"
148 "BODY.PEEK[HEADER.FIELDS %s]"
149 "RFC822.HEADER.LINES %s")
150 (append '(Subject From Date Message-Id
151 References In-Reply-To Xref)
152 nnmail-extra-headers))))
154 (nnimap-transform-headers))
155 (insert-buffer-substring
156 (nnimap-find-process-buffer (current-buffer))))
159 (defun nnimap-transform-headers ()
160 (goto-char (point-min))
161 (let (article bytes lines size string)
164 (while (not (looking-at "^\\* [0-9]+ FETCH.*UID \\([0-9]+\\)"))
165 (delete-region (point) (progn (forward-line 1) (point)))
168 (setq article (match-string 1))
169 ;; Unfold quoted {number} strings.
170 (while (re-search-forward "[^]] {\\([0-9]+\\)}\r\n"
171 (1+ (line-end-position)) t)
172 (setq size (string-to-number (match-string 1)))
173 (delete-region (+ (match-beginning 0) 2) (point))
174 (setq string (delete-region (point) (+ (point) size)))
175 (insert (format "%S" string)))
176 (setq bytes (nnimap-get-length)
180 (and (re-search-forward "RFC822.SIZE \\([0-9]+\\)"
185 (when (search-forward "BODYSTRUCTURE" (line-end-position) t)
186 (let ((structure (ignore-errors
187 (read (current-buffer)))))
188 (while (and (consp structure)
189 (not (stringp (car structure))))
190 (setq structure (car structure)))
191 (setq lines (nth 7 structure))))
192 (delete-region (line-beginning-position) (line-end-position))
193 (insert (format "211 %s Article retrieved." article))
196 (insert (format "Chars: %s\n" size)))
198 (insert (format "Lines: %s\n" lines)))
199 (re-search-forward "^\r$")
200 (delete-region (line-beginning-position) (line-end-position))
204 (defun nnimap-get-length ()
205 (and (re-search-forward "{\\([0-9]+\\)}" (line-end-position) t)
206 (string-to-number (match-string 1))))
208 (defun nnimap-article-ranges (ranges)
212 (number-to-string ranges))
213 ((numberp (cdr ranges))
214 (format "%d:%d" (car ranges) (cdr ranges)))
216 (dolist (elem ranges)
219 (format "%d:%d" (car elem) (cdr elem))
220 (number-to-string elem))
222 (mapconcat #'identity (nreverse result) ",")))))
224 (deffoo nnimap-open-server (server &optional defs)
225 (if (nnimap-server-opened server)
227 (unless (assq 'nnimap-address defs)
228 (setq defs (append defs (list (list 'nnimap-address server)))))
229 (nnoo-change-server 'nnimap server defs)
230 (or (nnimap-find-connection nntp-server-buffer)
231 (nnimap-open-connection nntp-server-buffer))))
233 (defun nnimap-make-process-buffer (buffer)
235 (generate-new-buffer (format "*nnimap %s %s %s*"
236 nnimap-address nnimap-server-port
237 (gnus-buffer-exists-p buffer)))
238 (mm-disable-multibyte)
239 (buffer-disable-undo)
241 (set (make-local-variable 'after-change-functions) nil)
242 (set (make-local-variable 'nnimap-object)
243 (make-nnimap :server (nnoo-current-server 'nnimap)))
244 (push (list buffer (current-buffer)) nnimap-connection-alist)
245 (push (current-buffer) nnimap-process-buffers)
248 (defun nnimap-open-shell-stream (name buffer host port)
249 (let ((process-connection-type nil))
250 (start-process name buffer shell-file-name
258 (defun nnimap-credentials (address ports &optional inhibit-create)
259 (let (port credentials)
260 ;; Request the credentials from all ports, but only query on the
261 ;; last port if all the previous ones have failed.
262 (while (and (null credentials)
263 (setq port (pop ports)))
265 (auth-source-user-or-password
266 '("login" "password") address port nil
272 (defun nnimap-keepalive ()
273 (let ((now (current-time)))
274 (dolist (buffer nnimap-process-buffers)
275 (when (buffer-name buffer)
276 (with-current-buffer buffer
277 (when (and nnimap-object
278 (nnimap-last-command-time nnimap-object)
282 (nnimap-last-command-time nnimap-object)))
283 ;; More than five minutes since the last command.
285 (nnimap-send-command "NOOP")))))))
287 (defun nnimap-open-connection (buffer)
288 (unless nnimap-keepalive-timer
289 (setq nnimap-keepalive-timer (run-at-time (* 60 15) (* 60 15)
292 (with-current-buffer (nnimap-make-process-buffer buffer)
293 (let* ((coding-system-for-read 'binary)
294 (coding-system-for-write 'binary)
298 ((eq nnimap-stream 'network)
300 "*nnimap*" (current-buffer) nnimap-address
302 (or nnimap-server-port
303 (if (netrc-find-service-number "imap")
307 ((eq nnimap-stream 'shell)
308 (nnimap-open-shell-stream
309 "*nnimap*" (current-buffer) nnimap-address
310 (setq port (or nnimap-server-port "imap")))
312 ((eq nnimap-stream 'starttls)
313 (let ((tls-program (nnimap-extend-tls-programs)))
315 "*nnimap*" (current-buffer) nnimap-address
316 (setq port (or nnimap-server-port "imap"))
319 ((memq nnimap-stream '(ssl tls))
320 (funcall (if (fboundp 'open-gnutls-stream)
323 "*nnimap*" (current-buffer) nnimap-address
325 (or nnimap-server-port
326 (if (netrc-find-service-number "imaps")
329 '("143" "993" "imap" "imaps"))
331 (error "Unknown stream type: %s" nnimap-stream))))
332 connection-result login-result credentials)
333 (setf (nnimap-process nnimap-object)
334 (get-buffer-process (current-buffer)))
335 (if (not (and (nnimap-process nnimap-object)
336 (memq (process-status (nnimap-process nnimap-object))
338 (nnheader-report 'nnimap "Unable to contact %s:%s via %s"
339 nnimap-address port nnimap-stream)
340 (gnus-set-process-query-on-exit-flag
341 (nnimap-process nnimap-object) nil)
342 (if (not (setq connection-result (nnimap-wait-for-connection)))
343 (nnheader-report 'nnimap
344 "%s" (buffer-substring
345 (point) (line-end-position)))
346 ;; Store the greeting (for debugging purposes).
347 (setf (nnimap-greeting nnimap-object)
348 (buffer-substring (line-beginning-position)
349 (line-end-position)))
350 ;; Store the capabilities.
351 (setf (nnimap-capabilities nnimap-object)
354 (nnimap-find-parameter
355 "CAPABILITY" (cdr (nnimap-command "CAPABILITY")))))
356 (when nnimap-server-port
357 (push (format "%s" nnimap-server-port) ports))
358 ;; If this is a STARTTLS-capable server, then sever the
359 ;; connection and start a STARTTLS connection instead.
360 (when (and (eq nnimap-stream 'network)
361 (member "STARTTLS" (nnimap-capabilities nnimap-object)))
362 (let ((nnimap-stream 'starttls))
364 (nnimap-open-connection buffer)))
365 ;; If the STARTTLS connection was successful, we
366 ;; kill our first non-encrypted connection. If it
367 ;; wasn't successful, we just use our unencrypted
369 (when (memq (process-status tls-process) '(open run))
370 (delete-process (nnimap-process nnimap-object))
371 (kill-buffer (current-buffer))
372 (return tls-process)))))
373 (unless (equal connection-result "PREAUTH")
374 (if (not (setq credentials
375 (if (eq nnimap-authenticator 'anonymous)
377 (message-make-address))
379 ;; First look for the credentials based
380 ;; on the virtual server name.
382 (nnoo-current-server 'nnimap) ports t)
383 ;; Then look them up based on the
385 (nnimap-credentials nnimap-address ports)))))
386 (setq nnimap-object nil)
387 (setq login-result (nnimap-command "LOGIN %S %S"
390 (unless (car login-result)
391 ;; If the login failed, then forget the credentials
392 ;; that are now possibly cached.
393 (dolist (host (list (nnoo-current-server 'nnimap)
396 (dolist (element '("login" "password"))
397 (auth-source-forget-user-or-password
398 element host port))))
399 (delete-process (nnimap-process nnimap-object))
400 (setq nnimap-object nil))))
402 (when (member "QRESYNC" (nnimap-capabilities nnimap-object))
403 (nnimap-command "ENABLE QRESYNC"))
404 (nnimap-process nnimap-object))))))))
406 (defun nnimap-extend-tls-programs ()
407 (let ((programs tls-program)
409 (unless (consp programs)
410 (setq programs (list programs)))
411 (dolist (program programs)
412 (when (assoc (car (split-string program)) tls-starttls-switches)
413 (push (if (not (string-match "%s" program))
414 (concat program " " "%s")
419 (defun nnimap-find-parameter (parameter elems)
423 ((equal (car elem) parameter)
424 (setq result (cdr elem)))
425 ((and (equal (car elem) "OK")
427 (equal (caadr elem) parameter))
428 (setq result (cdr (cadr elem))))))
431 (deffoo nnimap-close-server (&optional server)
432 (when (nnoo-change-server 'nnimap server nil)
434 (delete-process (get-buffer-process (nnimap-buffer))))
437 (deffoo nnimap-request-close ()
440 (deffoo nnimap-server-opened (&optional server)
441 (and (nnoo-current-server-p 'nnimap server)
443 (gnus-buffer-live-p nntp-server-buffer)
444 (nnimap-find-connection nntp-server-buffer)))
446 (deffoo nnimap-status-message (&optional server)
447 nnimap-status-string)
449 (deffoo nnimap-request-article (article &optional group server to-buffer)
450 (with-current-buffer nntp-server-buffer
451 (let ((result (nnimap-possibly-change-group group server))
453 (when (stringp article)
454 (setq article (nnimap-find-article-by-message-id group article)))
458 (with-current-buffer (nnimap-buffer)
460 (when nnimap-fetch-partial-articles
461 (nnimap-command "UID FETCH %d (BODYSTRUCTURE)" article)
462 (goto-char (point-min))
463 (when (re-search-forward "FETCH.*BODYSTRUCTURE" nil t)
464 (setq structure (ignore-errors
465 (let ((start (point)))
467 (downcase-region start (point))
469 (read (current-buffer))))
470 parts (nnimap-find-wanted-parts structure))))
472 (nnimap-get-partial-article article parts structure)
473 (nnimap-get-whole-article article))
474 (let ((buffer (current-buffer)))
475 (with-current-buffer (or to-buffer nntp-server-buffer)
477 (insert-buffer-substring buffer)
478 (nnheader-ms-strip-cr)
479 (cons group article)))))))))
481 (defun nnimap-get-whole-article (article)
485 "UID FETCH %d BODY.PEEK[]"
486 "UID FETCH %d RFC822.PEEK")
488 ;; Check that we really got an article.
489 (goto-char (point-min))
490 (unless (re-search-forward "\\* [0-9]+ FETCH" nil t)
493 ;; Remove any data that may have arrived before the FETCH data.
496 (delete-region (point-min) (point)))
497 (let ((bytes (nnimap-get-length)))
498 (delete-region (line-beginning-position)
499 (progn (forward-line 1) (point)))
500 (goto-char (+ (point) bytes))
501 (delete-region (point) (point-max)))
504 (defun nnimap-ver4-p ()
505 (member "IMAP4REV1" (nnimap-capabilities nnimap-object)))
507 (defun nnimap-get-partial-article (article parts structure)
510 "UID FETCH %d (%s %s)"
516 (mapconcat (lambda (part)
517 (format "BODY.PEEK[%s]" part))
519 (mapconcat (lambda (part)
520 (format "RFC822.PEEK[%s]" part))
523 (nnimap-convert-partial-article structure))))
525 (defun nnimap-convert-partial-article (structure)
526 ;; First just skip past the headers.
527 (goto-char (point-min))
528 (let ((bytes (nnimap-get-length))
530 ;; Delete "FETCH" line.
531 (delete-region (line-beginning-position)
532 (progn (forward-line 1) (point)))
533 (goto-char (+ (point) bytes))
534 ;; Collect all the body parts.
535 (while (looking-at ".*BODY\\[\\([.0-9]+\\)\\]")
536 (setq id (match-string 1)
537 bytes (nnimap-get-length))
539 (delete-region (point) (progn (forward-line 1) (point)))
540 (push (list id (buffer-substring (point) (+ (point) bytes)))
542 (delete-region (point) (+ (point) bytes)))
543 ;; Delete trailing junk.
544 (delete-region (point) (point-max))
545 ;; Now insert all the parts again where they fit in the structure.
546 (nnimap-insert-partial-structure structure parts)
549 (defun nnimap-insert-partial-structure (structure parts &optional subp)
551 (let ((bstruc structure))
552 (while (consp (car bstruc))
554 (setq type (car bstruc))
555 (setq bstruc (car (cdr bstruc)))
556 (when (and (stringp (car bstruc))
557 (string= (downcase (car bstruc)) "boundary"))
558 (setq boundary (cadr bstruc))))
560 (insert (format "Content-type: multipart/%s; boundary=%S\n\n"
561 (downcase type) boundary)))
562 (while (not (stringp (car structure)))
563 (insert "\n--" boundary "\n")
564 (if (consp (caar structure))
565 (nnimap-insert-partial-structure (pop structure) parts t)
566 (let ((bit (pop structure)))
567 (insert (format "Content-type: %s/%s"
568 (downcase (nth 0 bit))
569 (downcase (nth 1 bit))))
570 (if (member "CHARSET" (nth 2 bit))
572 "; charset=%S\n" (cadr (member "CHARSET" (nth 2 bit)))))
574 (insert (format "Content-transfer-encoding: %s\n"
577 (when (assoc (nth 9 bit) parts)
578 (insert (cadr (assoc (nth 9 bit) parts)))))))
579 (insert "\n--" boundary "--\n")))
581 (defun nnimap-find-wanted-parts (structure)
582 (message-flatten-list (nnimap-find-wanted-parts-1 structure "")))
584 (defun nnimap-find-wanted-parts-1 (structure prefix)
587 (while (consp (car structure))
588 (let ((sub (pop structure)))
589 (if (consp (car sub))
590 (push (nnimap-find-wanted-parts-1
591 sub (if (string= prefix "")
592 (number-to-string num)
593 (format "%s.%s" prefix num)))
595 (let ((type (format "%s/%s" (nth 0 sub) (nth 1 sub)))
596 (id (if (string= prefix "")
597 (number-to-string num)
598 (format "%s.%s" prefix num))))
599 (setcar (nthcdr 9 sub) id)
600 (when (if (eq nnimap-fetch-partial-articles t)
602 (string-match nnimap-fetch-partial-articles type))
607 (deffoo nnimap-request-group (group &optional server dont-check info)
608 (let ((result (nnimap-possibly-change-group group server))
609 articles active marks high low)
610 (with-current-buffer nntp-server-buffer
613 (setq active (nth 2 (assoc group nnimap-current-infos))))
614 (insert (format "211 %d %d %d %S\n"
615 (- (cdr active) (car active))
619 (with-current-buffer (nnimap-buffer)
621 (let ((group-sequence
622 (nnimap-send-command "SELECT %S" (utf7-encode group t)))
624 (nnimap-send-command "UID FETCH 1:* FLAGS")))
625 (nnimap-wait-for-response flag-sequence)
627 (nnimap-flags-to-marks
629 (list (list group-sequence flag-sequence
630 1 group "SELECT")))))
633 (nnimap-update-infos marks (list info)))
634 (goto-char (point-max))
635 (let ((uidnext (nth 5 (car marks))))
636 (setq high (or (if uidnext
640 low (or (nth 4 (car marks)) uidnext 1)))))
644 "211 %d %d %d %S\n" (1+ (- high low)) low high group)))
647 (deffoo nnimap-request-create-group (group &optional server args)
648 (when (nnimap-possibly-change-group nil server)
649 (with-current-buffer (nnimap-buffer)
650 (car (nnimap-command "CREATE %S" (utf7-encode group t))))))
652 (deffoo nnimap-request-delete-group (group &optional force server)
653 (when (nnimap-possibly-change-group nil server)
654 (with-current-buffer (nnimap-buffer)
655 (car (nnimap-command "DELETE %S" (utf7-encode group t))))))
657 (deffoo nnimap-request-rename-group (group new-name &optional server)
658 (when (nnimap-possibly-change-group nil server)
659 (with-current-buffer (nnimap-buffer)
660 (car (nnimap-command "RENAME %S %S"
661 (utf7-encode group t) (utf7-encode new-name t))))))
663 (deffoo nnimap-request-expunge-group (group &optional server)
664 (when (nnimap-possibly-change-group group server)
665 (with-current-buffer (nnimap-buffer)
666 (car (nnimap-command "EXPUNGE")))))
668 (defun nnimap-get-flags (spec)
671 (with-current-buffer (nnimap-buffer)
673 (nnimap-wait-for-response (nnimap-send-command
674 "UID FETCH %s FLAGS" spec))
676 (subst-char-in-region (point-min) (point-max)
678 (goto-char (point-min))
679 (while (search-forward " FETCH " end t)
680 (setq elems (read (current-buffer)))
681 (push (cons (cadr (memq 'UID elems))
682 (cadr (memq 'FLAGS elems)))
684 (nreverse articles)))
686 (deffoo nnimap-close-group (group &optional server)
689 (deffoo nnimap-request-move-article (article group server accept-form
690 &optional last internal-move-group)
692 (when (nnimap-request-article article group server (current-buffer))
693 ;; If the move is internal (on the same server), just do it the easy
695 (let ((message-id (message-field-value "message-id")))
696 (if internal-move-group
698 (with-current-buffer (nnimap-buffer)
699 (nnimap-command "UID COPY %d %S"
701 (utf7-encode internal-move-group t)))))
703 (nnimap-delete-article article)
704 (cons internal-move-group
705 (nnimap-find-article-by-message-id
706 internal-move-group message-id))))
707 ;; Move the article to a different method.
708 (let ((result (eval accept-form)))
710 (nnimap-delete-article article)
713 (deffoo nnimap-request-expire-articles (articles group &optional server force)
717 ((not (nnimap-possibly-change-group group server))
720 (eq nnmail-expiry-target 'delete))
721 (unless (nnimap-delete-article (gnus-compress-sequence articles))
722 (message "Article marked for deletion, but not expunged."))
725 (let ((deletable-articles
727 (eq nnmail-expiry-wait 'immediate))
729 (gnus-sorted-intersection
731 (nnimap-find-expired-articles group)))))
732 (if (null deletable-articles)
734 (if (eq nnmail-expiry-target 'delete)
735 (nnimap-delete-article (gnus-compress-sequence deletable-articles))
736 (setq deletable-articles
737 (nnimap-process-expiry-targets
738 deletable-articles group server)))
739 ;; Return the articles we didn't delete.
740 (gnus-sorted-complement articles deletable-articles))))))
742 (defun nnimap-process-expiry-targets (articles group server)
743 (let ((deleted-articles nil))
744 (dolist (article articles)
745 (let ((target nnmail-expiry-target))
747 (when (nnimap-request-article article group server (current-buffer))
748 (message "Expiring article %s:%d" group article)
749 (when (functionp target)
750 (setq target (funcall target group)))
752 (not (eq target 'delete)))
753 (if (or (gnus-request-group target t)
754 (gnus-request-create-group target))
755 (nnmail-expiry-target-group target group)
758 (push article deleted-articles))))))
759 ;; Change back to the current group again.
760 (nnimap-possibly-change-group group server)
761 (setq deleted-articles (nreverse deleted-articles))
762 (nnimap-delete-article (gnus-compress-sequence deleted-articles))
765 (defun nnimap-find-expired-articles (group)
766 (let ((cutoff (nnmail-expired-article-p group nil nil)))
767 (with-current-buffer (nnimap-buffer)
770 "UID SEARCH SENTBEFORE %s"
774 (car (rassoc (nth 4 (decode-time cutoff))
775 parse-time-months))))
778 (delete 0 (mapcar #'string-to-number
779 (cdr (assoc "SEARCH" (cdr result))))))))))
782 (defun nnimap-find-article-by-message-id (group message-id)
783 (with-current-buffer (nnimap-buffer)
785 (setf (nnimap-group nnimap-object) nil)
786 (nnimap-send-command "EXAMINE %S" (utf7-encode group t))
788 (nnimap-send-command "UID SEARCH HEADER Message-Id %S" message-id))
790 (setq result (nnimap-wait-for-response sequence))
792 (car (setq result (nnimap-parse-response))))
793 ;; Select the last instance of the message in the group.
795 (car (last (assoc "SEARCH" (cdr result)))))
796 (string-to-number article))))))
798 (defun nnimap-delete-article (articles)
799 (with-current-buffer (nnimap-buffer)
800 (nnimap-command "UID STORE %s +FLAGS.SILENT (\\Deleted)"
801 (nnimap-article-ranges articles))
803 ((member "UIDPLUS" (nnimap-capabilities nnimap-object))
804 (nnimap-command "UID EXPUNGE %s"
805 (nnimap-article-ranges articles))
808 (nnimap-command "EXPUNGE")
810 (t (gnus-message 7 (concat "nnimap: nnimap-expunge is not set and the "
811 "server doesn't support UIDPLUS, so we won't "
812 "delete this article now"))))))
814 (deffoo nnimap-request-scan (&optional group server)
815 (when (and (nnimap-possibly-change-group nil server)
817 nnimap-split-methods)
818 (message "nnimap %s splitting mail..." server)
819 (nnimap-split-incoming-mail)))
821 (defun nnimap-marks-to-flags (marks)
824 (when (setq flag (cadr (assq mark nnimap-mark-alist)))
828 (deffoo nnimap-request-set-mark (group actions &optional server)
829 (when (nnimap-possibly-change-group group server)
831 (with-current-buffer (nnimap-buffer)
833 ;; Just send all the STORE commands without waiting for
834 ;; response. If they're successful, they're successful.
835 (dolist (action actions)
836 (destructuring-bind (range action marks) action
837 (let ((flags (nnimap-marks-to-flags marks)))
839 (setq sequence (nnimap-send-command
840 "UID STORE %s %sFLAGS.SILENT (%s)"
841 (nnimap-article-ranges range)
845 (mapconcat #'identity flags " ")))))))
846 ;; Wait for the last command to complete to avoid later
847 ;; syncronisation problems with the stream.
849 (nnimap-wait-for-response sequence))))))
851 (deffoo nnimap-request-accept-article (group &optional server last)
852 (when (nnimap-possibly-change-group nil server)
853 (nnmail-check-syntax)
854 (let ((message-id (message-field-value "message-id"))
857 (setq message (buffer-string))
858 (with-current-buffer (nnimap-buffer)
859 (setq sequence (nnimap-send-command
860 "APPEND %S {%d}" (utf7-encode group t)
862 (process-send-string (get-buffer-process (current-buffer)) message)
863 (process-send-string (get-buffer-process (current-buffer))
864 (if (nnimap-newlinep nnimap-object)
867 (let ((result (nnimap-get-response sequence)))
868 (if (not (car result))
870 (message "%s" (nnheader-get-report-string 'nnimap))
873 (nnimap-find-article-by-message-id group message-id))))))))
875 (defun nnimap-add-cr ()
876 (goto-char (point-min))
877 (while (re-search-forward "\r?\n" nil t)
878 (replace-match "\r\n" t t)))
880 (defun nnimap-get-groups ()
881 (let ((result (nnimap-command "LIST \"\" \"*\""))
884 (dolist (line (cdr result))
885 (when (and (equal (car line) "LIST")
886 (not (and (caadr line)
887 (string-match "noselect" (caadr line)))))
888 (push (car (last line)) groups)))
891 (deffoo nnimap-request-list (&optional server)
892 (nnimap-possibly-change-group nil server)
893 (with-current-buffer nntp-server-buffer
896 (with-current-buffer (nnimap-buffer)
897 (nnimap-get-groups)))
900 (with-current-buffer (nnimap-buffer)
901 (setf (nnimap-group nnimap-object) nil)
902 (dolist (group groups)
903 (push (list (nnimap-send-command "EXAMINE %S" (utf7-encode group t))
906 (nnimap-wait-for-response (caar sequences))
908 (nnimap-get-responses (mapcar #'car sequences))))
909 (dolist (response responses)
910 (let* ((sequence (car response))
911 (response (cadr response))
912 (group (cadr (assoc sequence sequences))))
914 (equal (caar response) "OK"))
915 (let ((uidnext (nnimap-find-parameter "UIDNEXT" response))
917 (dolist (elem response)
918 (when (equal (cadr elem) "EXISTS")
919 (setq exists (string-to-number (car elem)))))
921 (setq highest (1- (string-to-number (car uidnext)))))
924 (insert (format "%S 0 1 y\n" (utf7-decode group t))))
927 (insert (format "%S %d %d y\n"
928 (utf7-decode group t) highest (1+ highest))))
930 ;; Return the widest possible range.
931 (insert (format "%S %d 1 y\n" (utf7-decode group t)
932 (or highest exists)))))))))
935 (deffoo nnimap-request-newgroups (date &optional server)
936 (nnimap-possibly-change-group nil server)
937 (with-current-buffer nntp-server-buffer
939 (dolist (group (with-current-buffer (nnimap-buffer)
940 (nnimap-get-groups)))
941 (unless (assoc group nnimap-current-infos)
942 ;; Insert dummy numbers here -- they don't matter.
943 (insert (format "%S 0 1 y\n" group))))
946 (deffoo nnimap-retrieve-group-data-early (server infos)
947 (when (nnimap-possibly-change-group nil server)
948 (with-current-buffer (nnimap-buffer)
950 (setf (nnimap-group nnimap-object) nil)
951 ;; QRESYNC handling isn't implemented.
952 (let ((qresyncp (member "QRESYNC" (nnimap-capabilities nnimap-object)))
953 params groups sequences active uidvalidity modseq group)
954 ;; Go through the infos and gather the data needed to know
955 ;; what and how to request the data.
957 (setq params (gnus-info-params info)
958 group (gnus-group-real-name (gnus-info-group info))
959 active (cdr (assq 'active params))
960 uidvalidity (cdr (assq 'uidvalidity params))
961 modseq (cdr (assq 'modseq params)))
966 (list (nnimap-send-command "EXAMINE %S (QRESYNC (%s %s))"
967 group uidvalidity modseq)
972 (if (and active uidvalidity)
973 ;; Fetch the last 100 flags.
974 (max 1 (- (cdr active) 100))
979 ;; If we don't have a UIDVALIDITY, then this is
980 ;; the first time we've seen the group, so we
981 ;; have to do a SELECT (which is slower than an
982 ;; examine), but will tell us whether the group
983 ;; is read-only or not.
985 (push (list (nnimap-send-command "%s %S" command group)
986 (nnimap-send-command "UID FETCH %d:* FLAGS" start)
989 ;; Some servers apparently can't have many outstanding
990 ;; commands, so throttle them.
991 (when (and (not nnimap-streaming)
993 (nnimap-wait-for-response (caar sequences))))
996 (deffoo nnimap-finish-retrieve-group-infos (server infos sequences)
998 (nnimap-possibly-change-group nil server))
999 (with-current-buffer (nnimap-buffer)
1000 ;; Wait for the final data to trickle in.
1001 (when (nnimap-wait-for-response (if (eq (cadar sequences) 'qresync)
1005 ;; Now we should have most of the data we need, no matter
1006 ;; whether we're QRESYNCING, fetching all the flags from
1007 ;; scratch, or just fetching the last 100 flags per group.
1008 (nnimap-update-infos (nnimap-flags-to-marks
1010 (nreverse sequences)))
1012 ;; Finally, just return something resembling an active file in
1013 ;; the nntp buffer, so that the agent can save the info, too.
1014 (with-current-buffer nntp-server-buffer
1016 (dolist (info infos)
1017 (let* ((group (gnus-info-group info))
1018 (active (gnus-active group)))
1020 (insert (format "%S %d %d y\n"
1021 (gnus-group-real-name group)
1023 (car active)))))))))))
1025 (defun nnimap-update-infos (flags infos)
1026 (dolist (info infos)
1027 (let* ((group (gnus-group-real-name (gnus-info-group info)))
1028 (marks (cdr (assoc group flags))))
1030 (nnimap-update-info info marks)))))
1032 (defun nnimap-update-info (info marks)
1033 (destructuring-bind (existing flags high low uidnext start-article
1034 permanent-flags uidvalidity
1035 vanished highestmodseq) marks
1037 ;; Ignore groups with no UIDNEXT/marks. This happens for
1038 ;; completely empty groups.
1039 ((and (not existing)
1041 (let ((active (cdr (assq 'active (gnus-info-params info)))))
1043 (gnus-set-active (gnus-info-group info) active))))
1044 ;; We have a mismatch between the old and new UIDVALIDITY
1045 ;; identifiers, so we have to re-request the group info (the next
1046 ;; time). This virtually never happens.
1047 ((let ((old-uidvalidity
1048 (cdr (assq 'uidvalidity (gnus-info-params info)))))
1049 (and old-uidvalidity
1050 (not (equal old-uidvalidity uidvalidity))
1051 (> start-article 1)))
1052 (gnus-group-remove-parameter info 'uidvalidity)
1053 (gnus-group-remove-parameter info 'modseq))
1054 ;; We have the data needed to update.
1056 (let* ((group (gnus-info-group info))
1057 (completep (and start-article
1058 (= start-article 1)))
1059 (active (or (cdr (assq 'active (gnus-info-params info)))
1060 (gnus-active group))))
1062 (setq high (1- uidnext)))
1063 ;; First set the active ranges based on high/low.
1065 (not (gnus-active group)))
1066 (gnus-set-active group
1071 ;; No articles in this group.
1072 (cons uidnext (1- uidnext)))
1076 (cons start-article (1- start-article)))
1078 ;; No articles and no uidnext.
1083 (or high (1- uidnext)))))
1084 ;; See whether this is a read-only group.
1085 (unless (eq permanent-flags 'not-scanned)
1086 (gnus-group-set-parameter
1087 info 'permanent-flags
1088 (if (memq '%* permanent-flags)
1091 ;; Update marks and read articles if this isn't a
1092 ;; read-only IMAP group.
1093 (when (cdr (assq 'permanent-flags (gnus-info-params info)))
1094 (if (and highestmodseq
1095 (not start-article))
1096 ;; We've gotten the data by QRESYNCing.
1097 (nnimap-update-qresync-info
1098 info existing (nnimap-imap-ranges-to-gnus-ranges vanished) flags)
1099 ;; Do normal non-QRESYNC flag updates.
1100 ;; Update the list of read articles.
1102 (gnus-compress-sequence
1103 (gnus-set-difference
1104 (gnus-set-difference
1106 (cdr (assoc '%Seen flags)))
1107 (cdr (assoc '%Flagged flags)))))
1108 (read (gnus-range-difference
1109 (cons start-article high) unread)))
1110 (when (> start-article 1)
1113 (if (> start-article 1)
1114 (gnus-sorted-range-intersection
1115 (cons 1 (1- start-article))
1116 (gnus-info-read info))
1117 (gnus-info-read info))
1119 (gnus-info-set-read info read)
1120 ;; Update the marks.
1121 (setq marks (gnus-info-marks info))
1122 (dolist (type (cdr nnimap-mark-alist))
1123 (let ((old-marks (assoc (car type) marks))
1125 (gnus-compress-sequence
1126 (cdr (or (assoc (caddr type) flags) ; %Flagged
1127 (assoc (intern (cadr type) obarray) flags)
1128 (assoc (cadr type) flags)))))) ; "\Flagged"
1129 (setq marks (delq old-marks marks))
1131 (when (and old-marks
1132 (> start-article 1))
1133 (setq old-marks (gnus-range-difference
1135 (cons start-article high)))
1136 (setq new-marks (gnus-range-nconcat old-marks new-marks)))
1138 (push (cons (car type) new-marks) marks)))
1139 (gnus-info-set-marks info marks t)))))
1140 ;; Note the active level for the next run-through.
1141 (gnus-group-set-parameter info 'active (gnus-active group))
1142 (gnus-group-set-parameter info 'uidvalidity uidvalidity)
1143 (gnus-group-set-parameter info 'modseq highestmodseq)
1144 (nnimap-store-info info (gnus-active group)))))))
1146 (defun nnimap-update-qresync-info (info existing vanished flags)
1147 ;; Add all the vanished articles to the list of read articles.
1150 (gnus-range-add (gnus-info-read info)
1152 (let ((marks (gnus-info-marks info)))
1153 (dolist (type (cdr nnimap-mark-alist))
1154 (let ((ticks (assoc (car type) marks))
1156 (cdr (or (assoc (caddr type) flags) ; %Flagged
1157 (assoc (intern (cadr type) obarray) flags)
1158 (assoc (cadr type) flags))))) ; "\Flagged"
1159 (setq marks (delq ticks marks))
1161 ;; Add the new marks we got.
1162 (setq ticks (gnus-add-to-range ticks new-marks))
1163 ;; Remove the marks from messages that don't have them.
1164 (setq ticks (gnus-remove-from-range
1166 (gnus-compress-sequence
1167 (gnus-sorted-complement existing new-marks))))
1169 (push (cons (car type) ticks) marks)))
1170 (gnus-info-set-marks info marks t))))
1172 (defun nnimap-imap-ranges-to-gnus-ranges (irange)
1173 (if (zerop (length irange))
1176 (dolist (elem (split-string irange ","))
1178 (if (string-match ":" elem)
1179 (let ((numbers (split-string elem ":")))
1180 (cons (string-to-number (car numbers))
1181 (string-to-number (cadr numbers))))
1182 (string-to-number elem))
1184 (nreverse result))))
1186 (defun nnimap-store-info (info active)
1187 (let* ((group (gnus-group-real-name (gnus-info-group info)))
1188 (entry (assoc group nnimap-current-infos)))
1190 (setcdr entry (list info active))
1191 (push (list group info active) nnimap-current-infos))))
1193 (defun nnimap-flags-to-marks (groups)
1194 (let (data group totalp uidnext articles start-article mark permanent-flags
1195 uidvalidity vanished highestmodseq)
1196 (dolist (elem groups)
1197 (setq group (car elem)
1198 uidnext (nth 1 elem)
1199 start-article (nth 2 elem)
1200 permanent-flags (nth 3 elem)
1201 uidvalidity (nth 4 elem)
1202 vanished (nth 5 elem)
1203 highestmodseq (nth 6 elem)
1204 articles (nthcdr 7 elem))
1205 (let ((high (caar articles))
1207 (dolist (article articles)
1208 (setq low (car article))
1209 (push (car article) existing)
1210 (dolist (flag (cdr article))
1211 (setq mark (assoc flag marks))
1213 (push (list flag (car article)) marks)
1214 (setcdr mark (cons (car article) (cdr mark))))))
1215 (push (list group existing marks high low uidnext start-article
1216 permanent-flags uidvalidity vanished highestmodseq)
1220 (defun nnimap-parse-flags (sequences)
1221 (goto-char (point-min))
1222 ;; Change \Delete etc to %Delete, so that the reader can read it.
1223 (subst-char-in-region (point-min) (point-max)
1225 (let (start end articles groups uidnext elems permanent-flags
1226 uidvalidity vanished highestmodseq)
1227 (dolist (elem sequences)
1228 (destructuring-bind (group-sequence flag-sequence totalp group command)
1230 (setq start (point))
1232 ;; The EXAMINE was successful.
1233 (search-forward (format "\n%d OK " group-sequence) nil t)
1238 (setq permanent-flags
1239 (if (equal command "SELECT")
1240 (and (search-forward "PERMANENTFLAGS "
1241 (or end (point-min)) t)
1242 (read (current-buffer)))
1246 (and (search-forward "UIDNEXT "
1247 (or end (point-min)) t)
1248 (read (current-buffer))))
1251 (and (re-search-forward "UIDVALIDITY \\([0-9]+\\)"
1252 (or end (point-min)) t)
1253 ;; Store UIDVALIDITY as a string, as it's
1254 ;; too big for 32-bit Emacsen, usually.
1258 (and (eq flag-sequence 'qresync)
1259 (re-search-forward "VANISHED.* \\([0-9:,]+\\)"
1260 (or end (point-min)) t)
1264 (and (search-forward "HIGHESTMODSEQ "
1265 (or end (point-min)) t)
1266 (read (current-buffer))))
1269 ;; The UID FETCH FLAGS was successful.
1270 (or (eq flag-sequence 'qresync)
1271 (search-forward (format "\n%d OK " flag-sequence) nil t)))
1272 (if (eq flag-sequence 'qresync)
1276 (setq start (point))
1278 (while (search-forward " FETCH " start t)
1279 (setq elems (read (current-buffer)))
1280 (push (cons (cadr (memq 'UID elems))
1281 (cadr (memq 'FLAGS elems)))
1283 (push (nconc (list group uidnext totalp permanent-flags uidvalidity
1284 vanished highestmodseq)
1288 (setq articles nil))))
1291 (defun nnimap-find-process-buffer (buffer)
1292 (cadr (assoc buffer nnimap-connection-alist)))
1294 (deffoo nnimap-request-post (&optional server)
1295 (setq nnimap-status-string "Read-only server")
1298 (defun nnimap-possibly-change-group (group server)
1299 (let ((open-result t))
1301 (not (nnimap-server-opened server)))
1302 (setq open-result (nnimap-open-server server)))
1309 (with-current-buffer (nnimap-buffer)
1310 (if (equal group (nnimap-group nnimap-object))
1312 (let ((result (nnimap-command "SELECT %S" (utf7-encode group t))))
1314 (setf (nnimap-group nnimap-object) group
1315 (nnimap-select-result nnimap-object) result)
1318 (defun nnimap-find-connection (buffer)
1319 "Find the connection delivering to BUFFER."
1320 (let ((entry (assoc buffer nnimap-connection-alist)))
1322 (if (and (buffer-name (cadr entry))
1323 (get-buffer-process (cadr entry))
1324 (memq (process-status (get-buffer-process (cadr entry)))
1326 (get-buffer-process (cadr entry))
1327 (setq nnimap-connection-alist (delq entry nnimap-connection-alist))
1330 (defvar nnimap-sequence 0)
1332 (defun nnimap-send-command (&rest args)
1333 (process-send-string
1334 (get-buffer-process (current-buffer))
1337 (incf nnimap-sequence)
1338 (apply #'format args)
1339 (if (nnimap-newlinep nnimap-object)
1344 (defun nnimap-log-command (command)
1345 (with-current-buffer (get-buffer-create "*imap log*")
1346 (goto-char (point-max))
1347 (insert (format-time-string "%H:%M:%S") " " command))
1350 (defun nnimap-command (&rest args)
1352 (setf (nnimap-last-command-time nnimap-object) (current-time))
1353 (let* ((sequence (apply #'nnimap-send-command args))
1354 (response (nnimap-get-response sequence)))
1355 (if (equal (caar response) "OK")
1357 (nnheader-report 'nnimap "%s"
1358 (mapconcat (lambda (a)
1360 (car response) " "))
1363 (defun nnimap-get-response (sequence)
1364 (nnimap-wait-for-response sequence)
1365 (nnimap-parse-response))
1367 (defun nnimap-wait-for-connection ()
1368 (let ((process (get-buffer-process (current-buffer))))
1369 (goto-char (point-min))
1370 (while (and (memq (process-status process)
1372 (not (re-search-forward "^[*.] .*\n" nil t)))
1373 (nnheader-accept-process-output process)
1374 (goto-char (point-min)))
1376 (and (looking-at "[*.] \\([A-Z0-9]+\\)")
1379 (defun nnimap-wait-for-response (sequence &optional messagep)
1380 (let ((process (get-buffer-process (current-buffer)))
1384 (goto-char (point-max))
1385 (while (and (setq openp (memq (process-status process)
1387 (not (re-search-backward
1388 (format "^%d .*\n" sequence)
1389 (if nnimap-streaming
1390 (max (point-min) (- (point) 500))
1394 (message "nnimap read %dk" (/ (buffer-size) 1000)))
1395 (nnheader-accept-process-output process)
1396 (goto-char (point-max)))
1399 ;; The user hit C-g while we were waiting: kill the process, in case
1400 ;; it's a gnutls-cli process that's stuck (tends to happen a lot behind
1402 (delete-process process)
1405 (defun nnimap-parse-response ()
1406 (let ((lines (split-string (nnimap-last-response-string) "\r\n" t))
1408 (dolist (line lines)
1409 (push (cdr (nnimap-parse-line line)) result))
1410 ;; Return the OK/error code first, and then all the "continuation
1411 ;; lines" afterwards.
1413 (nreverse result))))
1415 ;; Parse an IMAP response line lightly. They look like
1416 ;; "* OK [UIDVALIDITY 1164213559] UIDs valid", typically, so parse
1417 ;; the lines into a list of strings and lists of string.
1418 (defun nnimap-parse-line (line)
1422 (goto-char (point-min))
1424 (if (eql (setq char (following-char)) ? )
1432 (1- (search-forward "]" (line-end-position) 'move)))))
1437 (1- (search-forward ")" (line-end-position) 'move)))))
1442 (1- (or (search-forward "\"" (line-end-position) 'move)
1445 (buffer-substring (point) (if (search-forward " " nil t)
1447 (goto-char (point-max))))))
1449 (nreverse result))))
1451 (defun nnimap-last-response-string ()
1454 (let ((end (point)))
1458 (while (and (not (bobp))
1459 (eql (following-char) ?*))
1461 (unless (eql (following-char) ?*)
1463 (buffer-substring (point) end))))
1465 (defun nnimap-get-responses (sequences)
1467 (dolist (sequence sequences)
1468 (goto-char (point-min))
1469 (when (re-search-forward (format "^%d " sequence) nil t)
1470 (push (list sequence (nnimap-parse-response))
1474 (defvar nnimap-incoming-split-list nil)
1476 (defun nnimap-fetch-inbox (articles)
1478 (nnimap-wait-for-response
1479 (nnimap-send-command
1481 (nnimap-article-ranges articles)
1482 (format "(UID %s%s)"
1485 "BODY.PEEK[HEADER] BODY.PEEK"
1487 (if nnimap-split-download-body-default
1492 (defun nnimap-split-incoming-mail ()
1493 (with-current-buffer (nnimap-buffer)
1494 (let ((nnimap-incoming-split-list nil)
1495 (nnmail-split-methods (if (eq nnimap-split-methods 'default)
1496 nnmail-split-methods
1497 nnimap-split-methods))
1498 (nnmail-split-fancy (or nnimap-split-fancy
1499 nnmail-split-fancy))
1500 (nnmail-inhibit-default-split-group t)
1501 (groups (nnimap-get-groups))
1504 (nnimap-command "SELECT %S" nnimap-inbox)
1505 (setq new-articles (nnimap-new-articles (nnimap-get-flags "1:*")))
1507 (nnimap-fetch-inbox new-articles)
1508 (nnimap-transform-split-mail)
1509 (nnheader-ms-strip-cr)
1511 (nnmail-split-incoming (current-buffer)
1512 #'nnimap-save-mail-spec
1514 #'nnimap-dummy-active-number
1515 #'nnimap-save-mail-spec)
1516 (when nnimap-incoming-split-list
1517 (let ((specs (nnimap-make-split-specs nnimap-incoming-split-list))
1518 sequences junk-articles)
1519 ;; Create any groups that doesn't already exist on the
1521 (dolist (spec specs)
1522 (when (and (not (member (car spec) groups))
1523 (not (eq (car spec) 'junk)))
1524 (nnimap-command "CREATE %S" (utf7-encode (car spec) t))))
1525 ;; Then copy over all the messages.
1527 (dolist (spec specs)
1528 (let ((group (car spec))
1529 (ranges (cdr spec)))
1530 (if (eq group 'junk)
1531 (setq junk-articles ranges)
1532 (push (list (nnimap-send-command
1534 (nnimap-article-ranges ranges)
1535 (utf7-encode group t))
1538 ;; Wait for the last COPY response...
1540 (nnimap-wait-for-response (caar sequences))
1541 ;; And then mark the successful copy actions as deleted,
1542 ;; and possibly expunge them.
1543 (nnimap-mark-and-expunge-incoming
1544 (nnimap-parse-copied-articles sequences)))
1545 (nnimap-mark-and-expunge-incoming junk-articles)))))))
1547 (defun nnimap-mark-and-expunge-incoming (range)
1549 (setq range (nnimap-article-ranges range))
1552 (nnimap-send-command
1553 "UID STORE %s +FLAGS.SILENT (\\Deleted)" range)))
1555 ;; If the server supports it, we now delete the message we have
1556 ;; just copied over.
1557 ((member "UIDPLUS" (nnimap-capabilities nnimap-object))
1558 (setq sequence (nnimap-send-command "UID EXPUNGE %s" range)))
1559 ;; If it doesn't support UID EXPUNGE, then we only expunge if the
1560 ;; user has configured it.
1562 (setq sequence (nnimap-send-command "EXPUNGE"))))
1563 (nnimap-wait-for-response sequence))))
1565 (defun nnimap-parse-copied-articles (sequences)
1566 (let (sequence copied range)
1567 (goto-char (point-min))
1568 (while (re-search-forward "^\\([0-9]+\\) OK " nil t)
1569 (setq sequence (string-to-number (match-string 1)))
1570 (when (setq range (cadr (assq sequence sequences)))
1571 (push (gnus-uncompress-range range) copied)))
1572 (gnus-compress-sequence (sort (apply #'nconc copied) #'<))))
1574 (defun nnimap-new-articles (flags)
1576 (dolist (elem flags)
1577 (when (or (null (cdr elem))
1578 (and (not (memq '%Deleted (cdr elem)))
1579 (not (memq '%Seen (cdr elem)))))
1580 (push (car elem) new)))
1581 (gnus-compress-sequence (nreverse new))))
1583 (defun nnimap-make-split-specs (list)
1587 (destructuring-bind (article spec) elem
1588 (dolist (group (delete nil (mapcar #'car spec)))
1589 (unless (setq entry (assoc group specs))
1590 (push (setq entry (list group)) specs))
1591 (setcdr entry (cons article (cdr entry))))))
1592 (dolist (entry specs)
1593 (setcdr entry (gnus-compress-sequence (sort (cdr entry) #'<))))
1596 (defun nnimap-transform-split-mail ()
1597 (goto-char (point-min))
1598 (let (article bytes)
1601 (while (not (looking-at "^\\* [0-9]+ FETCH.*UID \\([0-9]+\\)"))
1602 (delete-region (point) (progn (forward-line 1) (point)))
1605 (setq article (match-string 1)
1606 bytes (nnimap-get-length))
1607 (delete-region (line-beginning-position) (line-end-position))
1608 ;; Insert MMDF separator, and a way to remember what this
1610 (insert (format "\^A\^A\^A\^A\n\nX-nnimap-article: %s" article))
1611 (forward-char (1+ bytes))
1612 (setq bytes (nnimap-get-length))
1613 (delete-region (line-beginning-position) (line-end-position))
1614 (forward-char (1+ bytes))
1615 (delete-region (line-beginning-position) (line-end-position))))))
1617 (defun nnimap-dummy-active-number (group &optional server)
1620 (defun nnimap-save-mail-spec (group-art &optional server full-nov)
1622 (goto-char (point-min))
1623 (if (not (re-search-forward "X-nnimap-article: \\([0-9]+\\)" nil t))
1624 (error "Invalid nnimap mail")
1625 (setq article (string-to-number (match-string 1))))
1627 (if (eq group-art 'junk)
1628 (list (cons 'junk 1))
1630 nnimap-incoming-split-list)))
1634 ;;; nnimap.el ends here