1 ;;; slp.el --- An SLP interface.
3 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
6 ;; Copyright (C) 2001 Yuuichi Teranishi <teranisi@gohome.org>
8 ;; This file is not part of GNU Emacs
10 ;; This program 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)
15 ;; This program 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.
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., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
28 ;; slp.el is an elisp library providing an interface for SLP (RFC2614)
29 ;; using OpenSLP(http://www.openslp.org/) slptool .
32 ;; 28 Aug 2001 Created.
37 "Interface for `Service Location Protocol'."
40 (defcustom slp-program "slptool"
41 "SLP client program (OpenSLP's slptool)."
45 (defcustom slp-program-arguments nil
46 "Option argument for SLP client program."
47 :type '(repeat string)
50 (defun slp-exec-wait (type &rest args)
51 "Synchronous execution of slp-program.
52 TYPE is a symbol (one of `srvs', `attrs', `srvtypes', `as-is', `ignore')."
54 (let ((result (apply 'call-process slp-program nil t nil
55 (append slp-program-arguments (delq nil args)))))
56 (unless (zerop result)
57 (error "SLP error: " (buffer-string)))
58 (goto-char (point-min))
60 (srvs (slp-parse-srvs))
61 (attrs (slp-parse-attrs))
62 (srvtypes (slp-parse-srvtypes))
63 (as-is (buffer-string))))))
66 (defun slp-parse-srvs ()
67 (let (srvtype hostport host port lifetime srvs)
70 (looking-at "service:\\([^:]+\\):/[^/]*/\\([^,]+\\),\\([0-9]+\\)"))
71 (setq srvtype (match-string 1)
72 hostport (match-string 2)
73 lifetime (string-to-number (match-string 3)))
74 (if (string-match ":\\([0-9]+\\)" hostport)
75 (setq host (substring hostport 0 (match-beginning 0))
76 port (string-to-number (match-string 1 hostport)))
79 (push (cons (list srvtype host port) lifetime) srvs)
81 (list 'srvs (nreverse srvs))))
83 (defsubst slp-forward ()
84 (or (eobp) (forward-char)))
86 (defun slp-parse-attr ()
87 (when (looking-at "(\\([^=]+\\)=\\([^)]+\\))")
88 (prog1 (cons (match-string 1) (match-string 2))
89 (goto-char (match-end 0)))))
91 (defun slp-parse-attrs ()
93 (push (slp-parse-attr) attrs)
94 (while (eq (char-after (point)) ?,)
96 (push (slp-parse-attr) attrs))
97 (list 'attrs (nreverse attrs))))
99 (defun slp-parse-srvtypes ()
102 (when (looking-at "^service:\\([^/\n]+\\)$")
103 (push (buffer-substring (match-beginning 1) (match-end 1)) types))
105 (list 'srvtypes (nreverse types))))
107 ;; Response accessor.
108 (defsubst slp-response-type (response)
111 (defsubst slp-response-body (response)
114 (defsubst slp-response-srv-url-service-type (srv)
117 (defsubst slp-response-srv-url-host (srv)
120 (defsubst slp-response-srv-url-port (srv)
123 (defsubst slp-response-srv-lifetime (srv)
127 (defun slp-findsrvs (service-type &optional filter)
128 (slp-exec-wait 'srvs "findsrvs" service-type filter))
130 (defun slp-findattrs (url &rest attrids)
131 (apply 'slp-exec-wait 'attrs "findattrs" url attrids))
133 (defun slp-findsrvtypes (&optional authority)
134 (slp-exec-wait 'srvtypes "findsrvtypes" authority))
136 (defun slp-findscopes ()
137 (slp-exec-wait 'as-is "findscopes"))
139 (defun slp-register (url &optional attrs)
140 (slp-exec-wait 'ignore "register" url (mapconcat
148 (defun slp-deregister (url)
149 (slp-exec-wait 'ignore "deregister" url))
151 (defun slp-getproperty (propertyname)
152 (slp-exec-wait 'as-is "getproperty" propertyname))