1;;; url-misc.el --- Misc Uniform Resource Locator retrieval code
2
3;; Copyright (C) 1996, 1997, 1998, 1999, 2002, 2004,
4;;   2005, 2006, 2007 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 2, or (at your option)
13;; 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; see the file COPYING.  If not, write to the
22;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
23;; Boston, MA 02110-1301, USA.
24
25;;; Code:
26
27(eval-when-compile (require 'cl))
28(require 'url-vars)
29(require 'url-parse)
30(autoload 'Info-goto-node "info" "" t)
31(autoload 'man "man" nil t)
32
33;;;###autoload
34(defun url-man (url)
35  "Fetch a Unix manual page URL."
36  (man (url-filename url))
37  nil)
38
39;;;###autoload
40(defun url-info (url)
41  "Fetch a GNU Info URL."
42  ;; Fetch an info node
43  (let* ((fname (url-filename url))
44	 (node (url-unhex-string (or (url-target url) "Top"))))
45    (if (and fname node)
46	(Info-goto-node (concat "(" fname ")" node))
47      (error "Malformed url: %s" (url-recreate-url url)))
48    nil))
49
50(defun url-do-terminal-emulator (type server port user)
51  (terminal-emulator
52   (generate-new-buffer (format "%s%s" (if user (concat user "@") "") server))
53   (case type
54     (rlogin "rlogin")
55     (telnet "telnet")
56     (tn3270 "tn3270")
57     (otherwise
58      (error "Unknown terminal emulator required: %s" type)))
59   (case type
60     (rlogin
61      (if user
62	  (list server "-l" user)
63	(list server)))
64     (telnet
65      (if user (message "Please log in as user: %s" user))
66      (if port
67	  (list server port)
68	(list server)))
69     (tn3270
70      (if user (message "Please log in as user: %s" user))
71      (list server)))))
72
73;;;###autoload
74(defun url-generic-emulator-loader (url)
75  (let* ((type (intern (downcase (url-type url))))
76	 (server (url-host url))
77	 (name (url-user url))
78	 (port (url-port url)))
79    (url-do-terminal-emulator type server port name))
80  nil)
81
82;;;###autoload
83(defalias 'url-rlogin 'url-generic-emulator-loader)
84;;;###autoload
85(defalias 'url-telnet 'url-generic-emulator-loader)
86;;;###autoload
87(defalias 'url-tn3270 'url-generic-emulator-loader)
88
89;; RFC 2397
90;;;###autoload
91(defun url-data (url)
92  "Fetch a data URL (RFC 2397)."
93  (let ((mediatype nil)
94	;; The mediatype may need to be hex-encoded too -- see the RFC.
95	(desc (url-unhex-string (url-filename url)))
96	(encoding "8bit")
97	(data nil))
98    (save-excursion
99      (if (not (string-match "\\([^,]*\\)?," desc))
100	  (error "Malformed data URL: %s" desc)
101	(setq mediatype (match-string 1 desc))
102	(if (and mediatype (string-match ";base64\\'" mediatype))
103	    (setq mediatype (substring mediatype 0 (match-beginning 0))
104		  encoding "base64"))
105	(if (or (null mediatype)
106		(eq ?\; (aref mediatype 0)))
107	  (setq mediatype (concat "text/plain" mediatype)))
108	(setq data (url-unhex-string (substring desc (match-end 0)))))
109      (set-buffer (generate-new-buffer " *url-data*"))
110      (mm-disable-multibyte)
111      (insert (format "Content-Length: %d\n" (length data))
112	      "Content-Type: " mediatype "\n"
113	      "Content-Encoding: " encoding "\n"
114	      "\n")
115      (if data (insert data))
116      (current-buffer))))
117
118(provide 'url-misc)
119
120;;; arch-tag: 8c544e1b-d8bc-40a6-b319-f1f37fef65a0
121;;; url-misc.el ends here
122