code.delx.au - gnu-emacs/blob - lisp/gnus/nngateway.el

   1 ;;; nngateway.el --- posting news via mail gateways
   2 ;; Copyright (C) 1996,97 Free Software Foundation, Inc.
   3
   4 ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
   5 ;; Keywords: news, mail
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; GNU Emacs is free software; you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation; either version 2, or (at your option)
  12 ;; any later version.
  13
  14 ;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  22 ;; Boston, MA 02111-1307, USA.
  23
  24 ;;; Commentary:
  25
  26 ;;; Code:
  27
  28 (require 'nnoo)
  29 (require 'message)
  30
  31 (nnoo-declare nngateway)
  32
  33 (defvoo nngateway-address nil
  34   "Address of the mail-to-news gateway.")
  35
  36 (defvoo nngateway-header-transformation 'nngateway-simple-header-transformation
  37   "Function to be called to rewrite the news headers into mail headers.
  38 It is called narrowed to the headers to be transformed with one
  39 parameter -- the gateway address.")
  40
  41 ;;; Interface functions
  42
  43 (nnoo-define-basics nngateway)
  44
  45 (deffoo nngateway-open-server (server &optional defs)
  46   (if (nngateway-server-opened server)
  47       t
  48     (unless (assq 'nngateway-address defs)
  49       (setq defs (append defs (list (list 'nngateway-address server)))))
  50     (nnoo-change-server 'nngateway server defs)))
  51
  52 (deffoo nngateway-request-post (&optional server)
  53   (when (or (nngateway-server-opened server)
  54             (nngateway-open-server server))
  55     ;; Rewrite the header.
  56     (let ((buf (current-buffer)))
  57       (nnheader-temp-write nil
  58         (insert-buffer-substring buf)
  59         (message-narrow-to-head)
  60         (funcall nngateway-header-transformation nngateway-address)
  61         (goto-char (point-max))
  62         (insert mail-header-separator "\n")
  63         (widen)
  64         (let (message-required-mail-headers)
  65           (funcall message-send-mail-function))))))
  66
  67 ;;; Internal functions
  68
  69 (defun nngateway-simple-header-transformation (gateway)
  70   "Transform the headers to use GATEWAY."
  71   (let ((newsgroups (mail-fetch-field "newsgroups")))
  72     (message-remove-header "to")
  73     (message-remove-header "cc")
  74     (goto-char (point-min))
  75     (insert "To: " (nnheader-replace-chars-in-string newsgroups ?. ?-)
  76             "@" gateway "\n")))
  77
  78 (nnoo-define-skeleton nngateway)
  79
  80 (provide 'nngateway)
  81
  82 ;;; nngateway.el ends here