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;;; nndb.el --- nndb access for Gnus
;; Copyright (C) 1996 Free Software Foundation, Inc.
;; Author: Kai Grossjohann <grossjohann@ls6.informatik.uni-dortmund.de>
;; Keywords: news
;; 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.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; 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:
;; I have shamelessly snarfed the code of nntp.el from sgnus.
;; Kai
;;-
;; Register nndb with known select methods.
(setq gnus-valid-select-methods
(cons '("nndb" mail address respool prompt-address)
gnus-valid-select-methods))
;;; Code:
(require 'nnheader)
(require 'nntp)
(eval-when-compile (require 'cl))
(eval-and-compile
(unless (fboundp 'open-network-stream)
(require 'tcp)))
(eval-when-compile (require 'cl))
(eval-and-compile
(autoload 'news-setup "rnewspost")
(autoload 'news-reply-mode "rnewspost")
(autoload 'cancel-timer "timer")
(autoload 'telnet "telnet" nil t)
(autoload 'telnet-send-input "telnet" nil t)
(autoload 'timezone-parse-date "timezone"))
;; Declare nndb as derived from nntp
(nnoo-declare nndb nntp)
;; Variables specific to nndb
;;- currently not used but just in case...
(defvoo nndb-deliver-program "nndel"
"*The program used to put a message in an NNDB group.")
;; Variables copied from nntp
(defvoo nndb-server-opened-hook '(nntp-send-authinfo-from-file)
"Like nntp-server-opened-hook."
nntp-server-opened-hook)
;(defvoo nndb-rlogin-parameters '("telnet" "${NNDBSERVER:=localhost}" "9000")
; "*Parameters to nndb-open-login. Like nntp-rlogin-parameters."
; nntp-rlogin-parameters)
;(defvoo nndb-rlogin-user-name nil
; "*User name for rlogin connect method."
; nntp-rlogin-user-name)
(defvoo nndb-address "localhost"
"*The name of the NNDB server."
nntp-address)
(defvoo nndb-port-number 9000
"*Port number to connect to."
nntp-port-number)
;(defvoo nndb-current-group ""
; "Like nntp-current-group."
; nntp-current-group)
(defvoo nndb-status-string nil "" nntp-status-string)
(defconst nndb-version "nndb 0.3"
"Version numbers of this version of NNDB.")
;;; Interface functions.
(nnoo-define-basics nndb)
;; Import other stuff from nntp as is.
(nnoo-import nndb
(nntp))
;;- maybe this should be mail??
;;-(defun nndb-request-type (group &optional article)
;;- 'news)
;;------------------------------------------------------------------
;;- only new stuff below
; nndb-request-update-info does not exist and is not needed
; nndb-request-update-mark does not exist and is not needed
; nndb-request-scan does not exist
; get new mail from somewhere -- maybe this is not needed?
; --> todo
(deffoo nndb-request-create-group (group &optional server)
"Creates a group if it doesn't exist yet."
(nntp-send-command "^[23].*\n" "MKGROUP" group))
; todo -- use some other time than the creation time of the article
; best is time since article has been marked as expirable
(deffoo nndb-request-expire-articles
(articles &optional group server force)
"Expires ARTICLES from GROUP on SERVER.
If FORCE, delete regardless of exiration date, otherwise use normal
expiry mechanism."
(let (msg art)
(nntp-possibly-change-server group server) ;;-
(while articles
(setq art (pop articles))
(nntp-send-command "^\\([23]\\|^423\\).*\n" "DATE" art)
(setq msg (nndb-status-message))
;; CCC we shouldn't be using the variable nndb-status-string?
(if (string-match "^423" (nnheader-get-report 'nndb))
()
(or (string-match "\\([0-9]+\\) \\([0-9]+\\)$" msg)
(error "Not a valid response for DATE command: %s"
msg))
(if (nnmail-expired-article-p
group
(list (string-to-int
(substring msg (match-beginning 1) (match-end 1)))
(string-to-int
(substring msg (match-beginning 2) (match-end 2))))
force)
(nnheader-message 5 "Deleting article %s in %s..."
art group)
(nntp-send-command "^[23].*\n" "DELETE" art))))))
(deffoo nndb-request-move-article
(article group server accept-form &optional last)
"Move ARTICLE (a number) from GROUP on SERVER.
Evals ACCEPT-FORM in current buffer, where the article is.
Optional LAST is ignored."
(let ((artbuf (get-buffer-create " *nndb move*"))
result)
(and
(nndb-request-article article group server artbuf)
(save-excursion
(set-buffer artbuf)
(setq result (eval accept-form))
(kill-buffer (current-buffer))
result)
(nndb-request-expire-articles (list article)
group
server
t))
result))
(deffoo nndb-request-accept-article (group server &optional last)
"The article in the current buffer is put into GROUP."
(nntp-possibly-change-server group server) ;;-
(let (art statmsg)
(when (nntp-send-command "^[23].*\r?\n" "ACCEPT" group)
(nnheader-insert "")
(nntp-encode-text)
(nntp-send-region-to-server (point-min) (point-max))
;; 1.2a NNTP's post command is buggy. "^M" (\r) is not
;; appended to end of the status message.
(nntp-wait-for-response "^[23].*\n")
(setq statmsg (nntp-status-message))
(or (string-match "^\\([0-9]+\\)" statmsg)
(error "nndb: %s" statmsg))
(setq art (substring statmsg
(match-beginning 1)
(match-end 1)))
(message "nndb: accepted %s" art)
(list art))))
(deffoo nndb-request-replace-article (article group buffer)
"ARTICLE is the number of the article in GROUP to be replaced
with the contents of the BUFFER."
(set-buffer buffer)
(let (art statmsg)
(when (nntp-send-command "^[23].*\r?\n" "REPLACE" (int-to-string article))
(nnheader-insert "")
(nntp-encode-text)
(nntp-send-region-to-server (point-min) (point-max))
;; 1.2a NNTP's post command is buggy. "^M" (\r) is not
;; appended to end of the status message.
(nntp-wait-for-response "^[23].*\n")
; (setq statmsg (nntp-status-message))
; (or (string-match "^\\([0-9]+\\)" statmsg)
; (error "nndb: %s" statmsg))
; (setq art (substring statmsg
; (match-beginning 1)
; (match-end 1)))
; (message "nndb: replaced %s" art)
(list (int-to-string article)))))
; nndb-request-delete-group does not exist
; todo -- maybe later
; nndb-request-rename-group does not exist
; todo -- maybe later
(provide 'nndb)
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