code.delx.au - gnu-emacs/blob - lisp/url/url-irc.el

   1 ;;; url-irc.el --- IRC URL interface
   2
   3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2004, 2005, 2006, 2007, 2008,
   4 ;;   2009, 2010, 2011  Free Software Foundation, Inc.
   5
   6 ;; Keywords: comm, data, processes
   7
   8 ;; This file is part of GNU Emacs.
   9
  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.
  14
  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.
  19
  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/>.
  22
  23 ;;; Commentary:
  24
  25 ;; IRC URLs are defined in
  26 ;; http://www.w3.org/Addressing/draft-mirashi-url-irc-01.txt
  27
  28 ;;; Code:
  29
  30 (require 'url-vars)
  31 (require 'url-parse)
  32
  33 (defconst url-irc-default-port 6667 "Default port for IRC connections.")
  34
  35 (defcustom url-irc-function 'url-irc-rcirc
  36   "Function to actually open an IRC connection.
  37 The function should take the following arguments:
  38     HOST - the hostname of the IRC server to contact
  39     PORT - the port number of the IRC server to contact
  40  CHANNEL - What channel on the server to visit right away (can be nil)
  41     USER - What username to use
  42 PASSWORD - What password to use"
  43   :type '(choice (const :tag "rcirc" :value url-irc-rcirc)
  44                  (const :tag "ERC" :value url-irc-erc)
  45                  (const :tag "ZEN IRC" :value url-irc-zenirc)
  46                  (function :tag "Other"))
  47   :group 'url)
  48
  49 ;; External.
  50 (declare-function zenirc "ext:zenirc" (&optional prefix))
  51 (declare-function zenirc-send-line "ext:zenirc" ())
  52
  53 (defun url-irc-zenirc (host port channel user password)
  54   (let ((zenirc-buffer-name (if (and user host port)
  55                                 (format "%s@%s:%d" user host port)
  56                               (format "%s:%d" host port)))
  57         (zenirc-server-alist
  58          (list
  59           (list host port password nil user))))
  60     (zenirc)
  61     (goto-char (point-max))
  62     (if (not channel)
  63         nil
  64       (insert "/join " channel)
  65       (zenirc-send-line))))
  66
  67 (defun url-irc-rcirc (host port channel user password)
  68   (let ((chan (when channel (concat "#" channel))))
  69     (rcirc-connect host port user nil nil (when chan (list chan)))
  70     (when chan
  71       (switch-to-buffer (concat chan "@" host)))))
  72
  73 (defun url-irc-erc (host port channel user password)
  74   (erc-handle-irc-url host port channel user password))
  75
  76 ;;;###autoload
  77 (defun url-irc (url)
  78   (let* ((host (url-host url))
  79          (port (url-port url))
  80          (pass (url-password url))
  81          (user (url-user url))
  82          (chan (url-filename url)))
  83     (if (url-target url)
  84         (setq chan (concat chan "#" (url-target url))))
  85     (if (string-match "^/" chan)
  86         (setq chan (substring chan 1 nil)))
  87     (if (= (length chan) 0)
  88         (setq chan nil))
  89     (funcall url-irc-function host port chan user pass)
  90     nil))
  91
  92 (provide 'url-irc)
  93
  94 ;;; url-irc.el ends here