1
0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-11-25 07:28:20 +00:00
emacs/lisp/gnus/nnmbox.el
ShengHuo ZHU 158d6e07f0 * message.el (message-narrow-to-head-1): New function.
(message-narrow-to-head): Use it.
(message-reply): Ditto.
(message-cancel-news): Ditto.
(message-supersede): Ditto.
(message-make-forward-subject): Ditto.
(message-bounce): Ditto.

* gnus-msg.el (gnus-summary-mail-forward): Use original buffer.

* message.el (message-forward): Copy buffer in unibyte mode.
(message-make-forward-subject): Don't widen. Decode.
(message-forward): Don't decode subject.

* mml.el (gnus-ems): Require it.

* gnus-msg.el (gnus-summary-mail-forward):

* message.el (message-forward):  Move mime-to-mml here.

* nnmbox.el (nnmbox-file-coding-system): Use binary.
(nnmbox-active-file-coding-system): Ditto.

* gnus-cus.el (gnus-group-parameters): Add posting-style.

* mm-uu.el: Require binhex.

* qp.el (quoted-printable-encode-region): Upcase QP.
2000-12-20 20:20:51 +00:00

591 lines
19 KiB
EmacsLisp
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

;;; nnmbox.el --- mail mbox access for Gnus
;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
;; Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
;; Keywords: news, mail
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; For an overview of what the interface functions do, please see the
;; Gnus sources.
;;; Code:
(require 'nnheader)
(require 'message)
(require 'nnmail)
(require 'nnoo)
(eval-when-compile (require 'cl))
(nnoo-declare nnmbox)
(defvoo nnmbox-mbox-file (expand-file-name "~/mbox")
"The name of the mail box file in the user's home directory.")
(defvoo nnmbox-active-file (expand-file-name "~/.mbox-active")
"The name of the active file for the mail box.")
(defvoo nnmbox-get-new-mail t
"If non-nil, nnmbox will check the incoming mail file and split the mail.")
(defvoo nnmbox-prepare-save-mail-hook nil
"Hook run narrowed to an article before saving.")
(defconst nnmbox-version "nnmbox 1.0"
"nnmbox version.")
(defvoo nnmbox-current-group nil
"Current nnmbox news group directory.")
(defconst nnmbox-mbox-buffer nil)
(defvoo nnmbox-status-string "")
(defvoo nnmbox-group-alist nil)
(defvoo nnmbox-active-timestamp nil)
(defvoo nnmbox-file-coding-system mm-binary-coding-system)
(defvoo nnmbox-file-coding-system-for-write nil)
(defvoo nnmbox-active-file-coding-system mm-binary-coding-system)
(defvoo nnmbox-active-file-coding-system-for-write nil)
;;; Interface functions
(nnoo-define-basics nnmbox)
(deffoo nnmbox-retrieve-headers (sequence &optional newsgroup server fetch-old)
(save-excursion
(set-buffer nntp-server-buffer)
(erase-buffer)
(let ((number (length sequence))
(count 0)
article art-string start stop)
(nnmbox-possibly-change-newsgroup newsgroup server)
(while sequence
(setq article (car sequence))
(setq art-string (nnmbox-article-string article))
(set-buffer nnmbox-mbox-buffer)
(when (or (search-forward art-string nil t)
(progn (goto-char (point-min))
(search-forward art-string nil t)))
(setq start
(save-excursion
(re-search-backward
(concat "^" message-unix-mail-delimiter) nil t)
(point)))
(search-forward "\n\n" nil t)
(setq stop (1- (point)))
(set-buffer nntp-server-buffer)
(insert (format "221 %d Article retrieved.\n" article))
(insert-buffer-substring nnmbox-mbox-buffer start stop)
(goto-char (point-max))
(insert ".\n"))
(setq sequence (cdr sequence))
(setq count (1+ count))
(and (numberp nnmail-large-newsgroup)
(> number nnmail-large-newsgroup)
(zerop (% count 20))
(nnheader-message 5 "nnmbox: Receiving headers... %d%%"
(/ (* count 100) number))))
(and (numberp nnmail-large-newsgroup)
(> number nnmail-large-newsgroup)
(nnheader-message 5 "nnmbox: Receiving headers...done"))
(set-buffer nntp-server-buffer)
(nnheader-fold-continuation-lines)
'headers)))
(deffoo nnmbox-open-server (server &optional defs)
(nnoo-change-server 'nnmbox server defs)
(nnmbox-create-mbox)
(cond
((not (file-exists-p nnmbox-mbox-file))
(nnmbox-close-server)
(nnheader-report 'nnmbox "No such file: %s" nnmbox-mbox-file))
((file-directory-p nnmbox-mbox-file)
(nnmbox-close-server)
(nnheader-report 'nnmbox "Not a regular file: %s" nnmbox-mbox-file))
(t
(nnheader-report 'nnmbox "Opened server %s using mbox %s" server
nnmbox-mbox-file)
t)))
(deffoo nnmbox-close-server (&optional server)
(when (and nnmbox-mbox-buffer
(buffer-name nnmbox-mbox-buffer))
(kill-buffer nnmbox-mbox-buffer))
(nnoo-close-server 'nnmbox server)
t)
(deffoo nnmbox-server-opened (&optional server)
(and (nnoo-current-server-p 'nnmbox server)
nnmbox-mbox-buffer
(buffer-name nnmbox-mbox-buffer)
nntp-server-buffer
(buffer-name nntp-server-buffer)))
(deffoo nnmbox-request-article (article &optional newsgroup server buffer)
(nnmbox-possibly-change-newsgroup newsgroup server)
(save-excursion
(set-buffer nnmbox-mbox-buffer)
(goto-char (point-min))
(when (search-forward (nnmbox-article-string article) nil t)
(let (start stop)
(re-search-backward (concat "^" message-unix-mail-delimiter) nil t)
(setq start (point))
(forward-line 1)
(or (and (re-search-forward
(concat "^" message-unix-mail-delimiter) nil t)
(forward-line -1))
(goto-char (point-max)))
(setq stop (point))
(let ((nntp-server-buffer (or buffer nntp-server-buffer)))
(set-buffer nntp-server-buffer)
(erase-buffer)
(insert-buffer-substring nnmbox-mbox-buffer start stop)
(goto-char (point-min))
(while (looking-at "From ")
(delete-char 5)
(insert "X-From-Line: ")
(forward-line 1))
(if (numberp article)
(cons nnmbox-current-group article)
(nnmbox-article-group-number)))))))
(deffoo nnmbox-request-group (group &optional server dont-check)
(nnmbox-possibly-change-newsgroup nil server)
(let ((active (cadr (assoc group nnmbox-group-alist))))
(cond
((or (null active)
(null (nnmbox-possibly-change-newsgroup group server)))
(nnheader-report 'nnmbox "No such group: %s" group))
(dont-check
(nnheader-report 'nnmbox "Selected group %s" group)
(nnheader-insert ""))
(t
(nnheader-report 'nnmbox "Selected group %s" group)
(nnheader-insert "211 %d %d %d %s\n"
(1+ (- (cdr active) (car active)))
(car active) (cdr active) group)))))
(defun nnmbox-save-buffer ()
(let ((coding-system-for-write
(or nnmbox-file-coding-system-for-write
nnmbox-file-coding-system)))
(save-buffer)))
(defun nnmbox-save-active (group-alist active-file)
(let ((nnmail-active-file-coding-system
(or nnmbox-active-file-coding-system-for-write
nnmbox-active-file-coding-system)))
(nnmail-save-active group-alist active-file)))
(deffoo nnmbox-request-scan (&optional group server)
(nnmbox-possibly-change-newsgroup group server)
(nnmbox-read-mbox)
(nnmail-get-new-mail
'nnmbox
(lambda ()
(save-excursion
(set-buffer nnmbox-mbox-buffer)
(nnmbox-save-buffer)))
(file-name-directory nnmbox-mbox-file)
group
(lambda ()
(save-excursion
(let ((in-buf (current-buffer)))
(set-buffer nnmbox-mbox-buffer)
(goto-char (point-max))
(insert-buffer-substring in-buf)))
(nnmbox-save-active nnmbox-group-alist nnmbox-active-file))))
(deffoo nnmbox-close-group (group &optional server)
t)
(deffoo nnmbox-request-create-group (group &optional server args)
(nnmail-activate 'nnmbox)
(unless (assoc group nnmbox-group-alist)
(push (list group (cons 1 0))
nnmbox-group-alist)
(nnmbox-save-active nnmbox-group-alist nnmbox-active-file))
t)
(deffoo nnmbox-request-list (&optional server)
(save-excursion
(let ((nnmail-file-coding-system
nnmbox-active-file-coding-system))
(nnmail-find-file nnmbox-active-file))
(setq nnmbox-group-alist (nnmail-get-active))
t))
(deffoo nnmbox-request-newgroups (date &optional server)
(nnmbox-request-list server))
(deffoo nnmbox-request-list-newsgroups (&optional server)
(nnheader-report 'nnmbox "LIST NEWSGROUPS is not implemented."))
(deffoo nnmbox-request-expire-articles
(articles newsgroup &optional server force)
(nnmbox-possibly-change-newsgroup newsgroup server)
(let* ((is-old t)
rest)
(nnmail-activate 'nnmbox)
(save-excursion
(set-buffer nnmbox-mbox-buffer)
(while (and articles is-old)
(goto-char (point-min))
(when (search-forward (nnmbox-article-string (car articles)) nil t)
(if (setq is-old
(nnmail-expired-article-p
newsgroup
(buffer-substring
(point) (progn (end-of-line) (point))) force))
(progn
(nnheader-message 5 "Deleting article %d in %s..."
(car articles) newsgroup)
(nnmbox-delete-mail))
(push (car articles) rest)))
(setq articles (cdr articles)))
(nnmbox-save-buffer)
;; Find the lowest active article in this group.
(let ((active (nth 1 (assoc newsgroup nnmbox-group-alist))))
(goto-char (point-min))
(while (and (not (search-forward
(nnmbox-article-string (car active)) nil t))
(<= (car active) (cdr active)))
(setcar active (1+ (car active)))
(goto-char (point-min))))
(nnmbox-save-active nnmbox-group-alist nnmbox-active-file)
(nconc rest articles))))
(deffoo nnmbox-request-move-article
(article group server accept-form &optional last)
(let ((buf (get-buffer-create " *nnmbox move*"))
result)
(and
(nnmbox-request-article article group server)
(save-excursion
(set-buffer buf)
(erase-buffer)
(insert-buffer-substring nntp-server-buffer)
(goto-char (point-min))
(while (re-search-forward
"^X-Gnus-Newsgroup:"
(save-excursion (search-forward "\n\n" nil t) (point)) t)
(delete-region (progn (beginning-of-line) (point))
(progn (forward-line 1) (point))))
(setq result (eval accept-form))
(kill-buffer buf)
result)
(save-excursion
(nnmbox-possibly-change-newsgroup group server)
(set-buffer nnmbox-mbox-buffer)
(goto-char (point-min))
(when (search-forward (nnmbox-article-string article) nil t)
(nnmbox-delete-mail))
(and last (nnmbox-save-buffer))))
result))
(deffoo nnmbox-request-accept-article (group &optional server last)
(nnmbox-possibly-change-newsgroup group server)
(nnmail-check-syntax)
(let ((buf (current-buffer))
result)
(goto-char (point-min))
;; The From line may have been quoted by movemail.
(when (looking-at (concat ">" message-unix-mail-delimiter))
(delete-char 1))
(if (looking-at "X-From-Line: ")
(replace-match "From ")
(insert "From nobody " (current-time-string) "\n"))
(and
(nnmail-activate 'nnmbox)
(progn
(set-buffer buf)
(goto-char (point-min))
(search-forward "\n\n" nil t)
(forward-line -1)
(while (re-search-backward "^X-Gnus-Newsgroup: " nil t)
(delete-region (point) (progn (forward-line 1) (point))))
(when nnmail-cache-accepted-message-ids
(nnmail-cache-insert (nnmail-fetch-field "message-id")))
(setq result (if (stringp group)
(list (cons group (nnmbox-active-number group)))
(nnmail-article-group 'nnmbox-active-number)))
(if (and (null result)
(yes-or-no-p "Moved to `junk' group; delete article? "))
(setq result 'junk)
(setq result (car (nnmbox-save-mail result)))))
(save-excursion
(set-buffer nnmbox-mbox-buffer)
(goto-char (point-max))
(insert-buffer-substring buf)
(when last
(when nnmail-cache-accepted-message-ids
(nnmail-cache-close))
(nnmbox-save-active nnmbox-group-alist nnmbox-active-file)
(nnmbox-save-buffer))))
result))
(deffoo nnmbox-request-replace-article (article group buffer)
(nnmbox-possibly-change-newsgroup group)
(save-excursion
(set-buffer nnmbox-mbox-buffer)
(goto-char (point-min))
(if (not (search-forward (nnmbox-article-string article) nil t))
nil
(nnmbox-delete-mail t t)
(insert-buffer-substring buffer)
(nnmbox-save-buffer)
t)))
(deffoo nnmbox-request-delete-group (group &optional force server)
(nnmbox-possibly-change-newsgroup group server)
;; Delete all articles in GROUP.
(if (not force)
() ; Don't delete the articles.
(save-excursion
(set-buffer nnmbox-mbox-buffer)
(goto-char (point-min))
;; Delete all articles in this group.
(let ((ident (concat "\nX-Gnus-Newsgroup: " nnmbox-current-group ":"))
found)
(while (search-forward ident nil t)
(setq found t)
(nnmbox-delete-mail))
(when found
(nnmbox-save-buffer)))))
;; Remove the group from all structures.
(setq nnmbox-group-alist
(delq (assoc group nnmbox-group-alist) nnmbox-group-alist)
nnmbox-current-group nil)
;; Save the active file.
(nnmbox-save-active nnmbox-group-alist nnmbox-active-file)
t)
(deffoo nnmbox-request-rename-group (group new-name &optional server)
(nnmbox-possibly-change-newsgroup group server)
(save-excursion
(set-buffer nnmbox-mbox-buffer)
(goto-char (point-min))
(let ((ident (concat "\nX-Gnus-Newsgroup: " nnmbox-current-group ":"))
(new-ident (concat "\nX-Gnus-Newsgroup: " new-name ":"))
found)
(while (search-forward ident nil t)
(replace-match new-ident t t)
(setq found t))
(when found
(nnmbox-save-buffer))))
(let ((entry (assoc group nnmbox-group-alist)))
(when entry
(setcar entry new-name))
(setq nnmbox-current-group nil)
;; Save the new group alist.
(nnmbox-save-active nnmbox-group-alist nnmbox-active-file)
t))
;;; Internal functions.
;; If FORCE, delete article no matter how many X-Gnus-Newsgroup
;; headers there are. If LEAVE-DELIM, don't delete the Unix mbox
;; delimiter line.
(defun nnmbox-delete-mail (&optional force leave-delim)
;; Delete the current X-Gnus-Newsgroup line.
(or force
(delete-region
(progn (beginning-of-line) (point))
(progn (forward-line 1) (point))))
;; Beginning of the article.
(save-excursion
(save-restriction
(narrow-to-region
(save-excursion
(re-search-backward (concat "^" message-unix-mail-delimiter) nil t)
(if leave-delim (progn (forward-line 1) (point))
(match-beginning 0)))
(progn
(forward-line 1)
(or (and (re-search-forward (concat "^" message-unix-mail-delimiter)
nil t)
(if (and (not (bobp)) leave-delim)
(progn (forward-line -2) (point))
(match-beginning 0)))
(point-max))))
(goto-char (point-min))
;; Only delete the article if no other groups owns it as well.
(when (or force (not (re-search-forward "^X-Gnus-Newsgroup: " nil t)))
(delete-region (point-min) (point-max))))))
(defun nnmbox-possibly-change-newsgroup (newsgroup &optional server)
(when (and server
(not (nnmbox-server-opened server)))
(nnmbox-open-server server))
(when (or (not nnmbox-mbox-buffer)
(not (buffer-name nnmbox-mbox-buffer)))
(save-excursion
(set-buffer (setq nnmbox-mbox-buffer
(let ((nnheader-file-coding-system
nnmbox-file-coding-system))
(nnheader-find-file-noselect
nnmbox-mbox-file nil t))))
(mm-enable-multibyte)
(buffer-disable-undo)))
(when (not nnmbox-group-alist)
(nnmail-activate 'nnmbox))
(if newsgroup
(when (assoc newsgroup nnmbox-group-alist)
(setq nnmbox-current-group newsgroup))
t))
(defun nnmbox-article-string (article)
(if (numberp article)
(concat "\nX-Gnus-Newsgroup: " nnmbox-current-group ":"
(int-to-string article) " ")
(concat "\nMessage-ID: " article)))
(defun nnmbox-article-group-number ()
(save-excursion
(goto-char (point-min))
(when (re-search-forward "^X-Gnus-Newsgroup: +\\([^:]+\\):\\([0-9]+\\) "
nil t)
(cons (buffer-substring (match-beginning 1) (match-end 1))
(string-to-int
(buffer-substring (match-beginning 2) (match-end 2)))))))
(defun nnmbox-save-mail (group-art)
"Called narrowed to an article."
(let ((delim (concat "^" message-unix-mail-delimiter)))
(goto-char (point-min))
;; This might come from somewhere else.
(unless (looking-at delim)
(insert "From nobody " (current-time-string) "\n")
(goto-char (point-min)))
;; Quote all "From " lines in the article.
(forward-line 1)
(while (re-search-forward delim nil t)
(beginning-of-line)
(insert "> "))
(nnmail-insert-lines)
(nnmail-insert-xref group-art)
(nnmbox-insert-newsgroup-line group-art)
(run-hooks 'nnmail-prepare-save-mail-hook)
(run-hooks 'nnmbox-prepare-save-mail-hook)
group-art))
(defun nnmbox-insert-newsgroup-line (group-art)
(save-excursion
(goto-char (point-min))
(when (search-forward "\n\n" nil t)
(forward-char -1)
(while group-art
(insert (format "X-Gnus-Newsgroup: %s:%d %s\n"
(caar group-art) (cdar group-art)
(current-time-string)))
(setq group-art (cdr group-art))))
t))
(defun nnmbox-active-number (group)
;; Find the next article number in GROUP.
(let ((active (cadr (assoc group nnmbox-group-alist))))
(if active
(setcdr active (1+ (cdr active)))
;; This group is new, so we create a new entry for it.
;; This might be a bit naughty... creating groups on the drop of
;; a hat, but I don't know...
(push (list group (setq active (cons 1 1)))
nnmbox-group-alist))
(cdr active)))
(defun nnmbox-create-mbox ()
(when (not (file-exists-p nnmbox-mbox-file))
(let ((nnmail-file-coding-system
(or nnmbox-file-coding-system-for-write
nnmbox-file-coding-system)))
(nnmail-write-region 1 1 nnmbox-mbox-file t 'nomesg))))
(defun nnmbox-read-mbox ()
(nnmail-activate 'nnmbox)
(nnmbox-create-mbox)
(if (and nnmbox-mbox-buffer
(buffer-name nnmbox-mbox-buffer)
(save-excursion
(set-buffer nnmbox-mbox-buffer)
(= (buffer-size) (nnheader-file-size nnmbox-mbox-file))))
()
(save-excursion
(let ((delim (concat "^" message-unix-mail-delimiter))
(alist nnmbox-group-alist)
start end number)
(set-buffer (setq nnmbox-mbox-buffer
(let ((nnheader-file-coding-system
nnmbox-file-coding-system))
(nnheader-find-file-noselect
nnmbox-mbox-file nil t))))
(mm-enable-multibyte)
(buffer-disable-undo)
;; Go through the group alist and compare against
;; the mbox file.
(while alist
(goto-char (point-max))
(when (and (re-search-backward
(format "^X-Gnus-Newsgroup: %s:\\([0-9]+\\) "
(caar alist)) nil t)
(> (setq number
(string-to-number
(buffer-substring
(match-beginning 1) (match-end 1))))
(cdadar alist)))
(setcdr (cadar alist) number))
(setq alist (cdr alist)))
(goto-char (point-min))
(while (re-search-forward delim nil t)
(setq start (match-beginning 0))
(unless (search-forward
"\nX-Gnus-Newsgroup: "
(save-excursion
(setq end
(or
(and
;; skip to end of headers first, since mail
;; which has been respooled has additional
;; "From nobody" lines.
(search-forward "\n\n" nil t)
(re-search-forward delim nil t)
(match-beginning 0))
(point-max))))
t)
(save-excursion
(save-restriction
(narrow-to-region start end)
(nnmbox-save-mail
(nnmail-article-group 'nnmbox-active-number)))))
(goto-char end))))))
(provide 'nnmbox)
;;; nnmbox.el ends here