mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-16 09:50:25 +00:00
139 lines
4.3 KiB
EmacsLisp
139 lines
4.3 KiB
EmacsLisp
;;; url-news.el --- News Uniform Resource Locator retrieval code
|
|
|
|
;; Copyright (C) 1996, 1997, 1998, 1999, 2004,
|
|
;; 2005, 2006 Free Software Foundation, Inc.
|
|
|
|
;; Keywords: comm, data, processes
|
|
|
|
;; 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., 51 Franklin Street, Fifth Floor,
|
|
;; Boston, MA 02110-1301, USA.
|
|
|
|
;;; Code:
|
|
|
|
(require 'url-vars)
|
|
(require 'url-util)
|
|
(require 'url-parse)
|
|
(require 'nntp)
|
|
(autoload 'url-warn "url")
|
|
(autoload 'gnus-group-read-ephemeral-group "gnus-group")
|
|
(eval-when-compile (require 'cl))
|
|
(defvar nntp-open-tls-stream)
|
|
(defvar nntp-open-ssl-stream)
|
|
|
|
(defgroup url-news nil
|
|
"News related options."
|
|
:group 'url)
|
|
|
|
(defun url-news-open-host (host port user pass)
|
|
(if (fboundp 'nnheader-init-server-buffer)
|
|
(nnheader-init-server-buffer))
|
|
(nntp-open-server host (list port))
|
|
(if (and user pass)
|
|
(progn
|
|
(nntp-send-command "^.*\r?\n" "AUTHINFO USER" user)
|
|
(nntp-send-command "^.*\r?\n" "AUTHINFO PASS" pass)
|
|
(if (not (nntp-server-opened host))
|
|
(url-warn 'url (format "NNTP authentication to `%s' as `%s' failed"
|
|
host user))))))
|
|
|
|
(defun url-news-fetch-message-id (host message-id)
|
|
(let ((buf (generate-new-buffer " *url-news*")))
|
|
(if (eq ?> (aref message-id (1- (length message-id))))
|
|
nil
|
|
(setq message-id (concat "<" message-id ">")))
|
|
(if (cdr-safe (nntp-request-article message-id nil host buf))
|
|
;; Successfully retrieved the article
|
|
nil
|
|
(with-current-buffer buf
|
|
(insert "Content-type: text/html\n\n"
|
|
"<html>\n"
|
|
" <head>\n"
|
|
" <title>Error</title>\n"
|
|
" </head>\n"
|
|
" <body>\n"
|
|
" <div>\n"
|
|
" <h1>Error requesting article...</h1>\n"
|
|
" <p>\n"
|
|
" The status message returned by the NNTP server was:"
|
|
"<br><hr>\n"
|
|
" <xmp>\n"
|
|
(nntp-status-message)
|
|
" </xmp>\n"
|
|
" </p>\n"
|
|
" <p>\n"
|
|
" If you If you feel this is an error, <a href=\""
|
|
"mailto:" url-bug-address "\">send mail</a>\n"
|
|
" </p>\n"
|
|
" </div>\n"
|
|
" </body>\n"
|
|
"</html>\n"
|
|
"<!-- Automatically generated by URL v" url-version " -->\n"
|
|
)))
|
|
buf))
|
|
|
|
(defun url-news-fetch-newsgroup (newsgroup host)
|
|
(declare (special gnus-group-buffer))
|
|
(if (string-match "^/+" newsgroup)
|
|
(setq newsgroup (substring newsgroup (match-end 0))))
|
|
(if (string-match "/+$" newsgroup)
|
|
(setq newsgroup (substring newsgroup 0 (match-beginning 0))))
|
|
|
|
;; This saves us from checking new news if Gnus is already running
|
|
;; FIXME - is it relatively safe to use gnus-alive-p here? FIXME
|
|
(if (or (not (get-buffer gnus-group-buffer))
|
|
(with-current-buffer gnus-group-buffer
|
|
(not (eq major-mode 'gnus-group-mode))))
|
|
(gnus))
|
|
(set-buffer gnus-group-buffer)
|
|
(goto-char (point-min))
|
|
(gnus-group-read-ephemeral-group newsgroup
|
|
(list 'nntp host
|
|
'nntp-open-connection-function
|
|
nntp-open-connection-function)
|
|
nil
|
|
(cons (current-buffer) 'browse)))
|
|
|
|
;;;###autoload
|
|
(defun url-news (url)
|
|
;; Find a news reference
|
|
(let* ((host (or (url-host url) url-news-server))
|
|
(port (url-port url))
|
|
(article-brackets nil)
|
|
(buf nil)
|
|
(article (url-unhex-string (url-filename url))))
|
|
(url-news-open-host host port (url-user url) (url-password url))
|
|
(cond
|
|
((string-match "@" article) ; Its a specific article
|
|
(setq buf (url-news-fetch-message-id host article)))
|
|
((string= article "") ; List all newsgroups
|
|
(gnus))
|
|
(t ; Whole newsgroup
|
|
(url-news-fetch-newsgroup article host)))
|
|
buf))
|
|
|
|
;;;###autoload
|
|
(defun url-snews (url)
|
|
(let ((nntp-open-connection-function (if (eq 'tls url-gateway-method)
|
|
nntp-open-tls-stream
|
|
nntp-open-ssl-stream)))
|
|
(url-news url)))
|
|
|
|
(provide 'url-news)
|
|
|
|
;; arch-tag: 8975be13-04e8-4d38-bfff-47918e3ad311
|
|
;;; url-news.el ends here
|