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;;; url-misc.el --- Misc Uniform Resource Locator retrieval code
;; Author: $Author: fx $
;; Created: $Date: 2002/04/22 22:23:59 $
;; Version: $Revision: 1.5 $
;; Keywords: comm, data, processes
;;; Copyright (c) 1993 - 1996 by William M. Perry <>
;;; Copyright (c) 1996, 97, 98, 99, 2002 Free Software Foundation, Inc.
;;; 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
;;; 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.
(require 'url-vars)
(require 'url-parse)
(autoload 'Info-goto-node "info" "" t)
(autoload 'man "man" nil t)
(defun url-man (url)
"Fetch a Unix manual page URL."
(man (url-filename url))
(defun url-info (url)
"Fetch a GNU Info URL."
;; Fetch an info node
(let* ((fname (url-filename url))
(node (url-unhex-string (or (url-target url) "Top"))))
(if (and fname node)
(Info-goto-node (concat "(" fname ")" node))
(error "Malformed url: %s" (url-recreate-url url)))
(defun url-do-terminal-emulator (type server port user)
(generate-new-buffer (format "%s%s" (if user (concat user "@") "") server))
(case type
(rlogin "rlogin")
(telnet "telnet")
(tn3270 "tn3270")
(error "Unknown terminal emulator required: %s" type)))
(case type
(if user
(list server "-l" user)
(list server)))
(if user (message "Please log in as user: %s" user))
(if port
(list server port)
(list server)))
(if user (message "Please log in as user: %s" user))
(list server)))))
(defun url-generic-emulator-loader (url)
(let* ((type (intern (downcase (url-type url))))
(server (url-host url))
(name (url-user url))
(port (url-port url)))
(url-do-terminal-emulator type server port name))
(defalias 'url-rlogin 'url-generic-emulator-loader)
(defalias 'url-telnet 'url-generic-emulator-loader)
(defalias 'url-tn3270 'url-generic-emulator-loader)
;; RFC 2397
(defun url-data (url)
"Fetch a data URL (RFC 2397)."
(let ((mediatype nil)
;; The mediatype may need to be hex-encoded too -- see the RFC.
(desc (url-unhex-string (url-filename url)))
(encoding "8bit")
(data nil))
(if (not (string-match "\\([^,]*\\)?," desc))
(error "Malformed data URL: %s" desc)
(setq mediatype (match-string 1 desc))
(if (and mediatype (string-match ";base64\\'" mediatype))
(setq mediatype (substring mediatype 0 (match-beginning 0))
encoding "base64"))
(if (or (null mediatype)
(eq ?\; (aref mediatype 0)))
(setq mediatype (concat "text/plain" mediatype)))
(setq data (url-unhex-string (substring desc (match-end 0)))))
(set-buffer (generate-new-buffer " *url-data*"))
(insert (format "Content-Length: %d\n" (length data))
"Content-Type: " mediatype "\n"
"Content-Encoding: " encoding "\n"
(if data (insert data))
(provide 'url-misc)