116 lines
3.7 KiB
EmacsLisp
116 lines
3.7 KiB
EmacsLisp
;;; url-irc.el --- IRC URL interface -*- lexical-binding: t -*-
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;; Copyright (C) 1996-1999, 2004-2024 Free Software Foundation, Inc.
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;; Keywords: comm, data, processes
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; IRC URLs are defined in
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;; https://www.w3.org/Addressing/draft-mirashi-url-irc-01.txt
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;;; Code:
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(require 'url-vars)
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(require 'url-parse)
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(defconst url-irc-default-port 6667 "Default port for IRC connections.")
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(defcustom url-irc-function 'url-irc-rcirc
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"Function to actually open an IRC connection.
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The function should take the following arguments:
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HOST - the hostname of the IRC server to contact
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PORT - the port number of the IRC server to contact
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CHANNEL - What channel on the server to visit right away (can be nil)
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USER - What username to use
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PASSWORD - What password to use.
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SCHEME - a URI scheme, such as \"irc\" or \"ircs\""
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:type '(choice (const :tag "rcirc" :value url-irc-rcirc)
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(const :tag "ERC" :value url-irc-erc)
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(const :tag "ZEN IRC" :value url-irc-zenirc)
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(function :tag "Other"))
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:version "29.1" ; Added SCHEME
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:group 'url)
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;; External.
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(declare-function zenirc "ext:zenirc" (&optional prefix))
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(declare-function zenirc-send-line "ext:zenirc" ())
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(defvar zenirc-server-alist)
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(defvar zenirc-buffer-name)
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(defun url-irc-zenirc (host port channel user password _)
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(let ((zenirc-buffer-name (if (and user host port)
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(format "%s@%s:%d" user host port)
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(format "%s:%d" host port)))
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(zenirc-server-alist
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(list
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(list host port password nil user))))
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(zenirc)
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(goto-char (point-max))
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(if (not channel)
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nil
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(insert "/join " channel)
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(zenirc-send-line))))
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(defun url-irc-rcirc (host port channel user password _)
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(let ((chan (when channel (concat "#" channel))))
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(rcirc-connect host port user nil nil (when chan (list chan)) password)
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(when chan
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(switch-to-buffer (concat chan "@" host)))))
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(defun url-irc-erc (host port channel user password scheme)
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(erc-handle-irc-url host port channel user password scheme))
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;;;###autoload
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(defun url-irc (url)
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(let* ((host (url-host url))
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(port (url-port url))
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(pass (url-password url))
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(user (url-user url))
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(chan (url-filename url))
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(type (url-type url)))
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(if (url-target url)
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(setq chan (concat chan "#" (url-target url))))
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(if (string-match "^/" chan)
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(setq chan (substring chan 1 nil)))
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(if (= (length chan) 0)
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(setq chan nil))
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(condition-case nil
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(funcall url-irc-function host port chan user pass type)
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(wrong-number-of-arguments
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(display-warning 'url
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(concat "Incompatible value for `url-irc-function'."
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" Likely not expecting a 6th (SCHEME) arg."))
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(funcall url-irc-function host port chan user pass)))
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nil))
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;;;; ircs://
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;; The function `url-scheme-get-property' tries and fails to load the
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;; nonexistent url-ircs.el but falls back to using the following:
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;;;###autoload
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(defconst url-ircs-default-port 6697 "Default port for IRCS connections.")
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;;;###autoload
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(defalias 'url-ircs 'url-irc)
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(provide 'url-irc)
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;;; url-irc.el ends here
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