/usr/share/emacs/site-lisp/emacs-jabber/jabber-disco.el is in emacs-jabber 0.8.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 | ;; jabber-disco.el - service discovery functions
;; Copyright (C) 2003, 2004, 2007, 2008 - Magnus Henoch - mange@freemail.hu
;; Copyright (C) 2002, 2003, 2004 - tom berger - object@intelectronica.net
;; This file is a part of jabber.el.
;; This program 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 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, write to the Free Software
;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
;;; All the client part should be seriously rewritten, or at least
;;; reconsidered. I'm imagining a separation between backend and
;;; frontend, so that various functions can perform disco queries for
;;; their own purposes, and maybe some caching with that.
(require 'jabber-iq)
(require 'jabber-xml)
(require 'jabber-menu)
;; Advertise your features here. Add the namespace to this list.
(defvar jabber-advertised-features
(list "http://jabber.org/protocol/disco#info")
"Features advertised on service discovery requests")
(defvar jabber-disco-items-nodes
(list
(list "" nil nil))
"Alist of node names and information about returning disco item data.
Key is node name as a string, or \"\" for no node specified. Value is
a list of two items.
First item is data to return. If it is a function, that function is
called and its return value is used; if it is a list, that list is
used. The list should be the XML data to be returned inside the
<query/> element, like this:
\((item ((name . \"Name of first item\")
(jid . \"first.item\")
(node . \"node\"))))
Second item is access control function. That function is passed the
JID, and returns non-nil if access is granted. If the second item is
nil, access is always granted.")
(defvar jabber-disco-info-nodes
(list
(list "" #'jabber-disco-return-client-info nil))
"Alist of node names and information returning disco info data.
Key is node name as a string, or \"\" for no node specified. Value is
a list of two items.
First item is data to return. If it is a function, that function is
called and its return value is used; if it is a list, that list is
used. The list should be the XML data to be returned inside the
<query/> element, like this:
\((identity ((category . \"client\")
(type . \"pc\")
(name . \"Jabber client\")))
(feature ((var . \"some-feature\"))))
Second item is access control function. That function is passed the
JID, and returns non-nil if access is granted. If the second item is
nil, access is always granted.")
(defun jabber-process-disco-info (jc xml-data)
"Handle results from info disco requests."
(let ((beginning (point)))
(dolist (x (jabber-xml-node-children (jabber-iq-query xml-data)))
(cond
((eq (jabber-xml-node-name x) 'identity)
(let ((name (jabber-xml-get-attribute x 'name))
(category (jabber-xml-get-attribute x 'category))
(type (jabber-xml-get-attribute x 'type)))
(insert (jabber-propertize (if name
name
"Unnamed")
'face 'jabber-title-medium)
"\n\nCategory:\t" category "\n")
(if type
(insert "Type:\t\t" type "\n"))
(insert "\n")))
((eq (jabber-xml-node-name x) 'feature)
(let ((var (jabber-xml-get-attribute x 'var)))
(insert "Feature:\t" var "\n")))))
(put-text-property beginning (point)
'jabber-jid (jabber-xml-get-attribute xml-data 'from))
(put-text-property beginning (point)
'jabber-account jc)))
(defun jabber-process-disco-items (jc xml-data)
"Handle results from items disco requests."
(let ((items (jabber-xml-get-children (jabber-iq-query xml-data) 'item)))
(if items
(dolist (item items)
(let ((jid (jabber-xml-get-attribute item 'jid))
(name (jabber-xml-get-attribute item 'name))
(node (jabber-xml-get-attribute item 'node)))
(insert
(jabber-propertize
(concat
(jabber-propertize
(concat jid "\n" (if node (format "Node: %s\n" node)))
'face 'jabber-title-medium)
name "\n\n")
'jabber-jid jid
'jabber-account jc
'jabber-node node))))
(insert "No items found.\n"))))
(add-to-list 'jabber-iq-get-xmlns-alist
(cons "http://jabber.org/protocol/disco#info" 'jabber-return-disco-info))
(add-to-list 'jabber-iq-get-xmlns-alist
(cons "http://jabber.org/protocol/disco#items" 'jabber-return-disco-info))
(defun jabber-return-disco-info (jc xml-data)
"Respond to a service discovery request.
See JEP-0030."
(let* ((to (jabber-xml-get-attribute xml-data 'from))
(id (jabber-xml-get-attribute xml-data 'id))
(xmlns (jabber-iq-xmlns xml-data))
(which-alist (eval (cdr (assoc xmlns
(list
(cons "http://jabber.org/protocol/disco#info" 'jabber-disco-info-nodes)
(cons "http://jabber.org/protocol/disco#items" 'jabber-disco-items-nodes))))))
(node (or
(jabber-xml-get-attribute (jabber-iq-query xml-data) 'node)
""))
(return-list (cdr (assoc node which-alist)))
(func (nth 0 return-list))
(access-control (nth 1 return-list)))
(if return-list
(if (and (functionp access-control)
(not (funcall access-control jc to)))
(jabber-signal-error "cancel" 'not-allowed)
;; Access control passed
(let ((result (if (functionp func)
(funcall func jc xml-data)
func)))
(jabber-send-iq jc to "result"
`(query ((xmlns . ,xmlns)
,@(when node
(list (cons 'node node))))
,@result)
nil nil nil nil id)))
;; No such node
(jabber-signal-error "cancel" 'item-not-found))))
(defun jabber-disco-return-client-info (jc xml-data)
`(
;; If running under a window system, this is
;; a GUI client. If not, it is a console client.
(identity ((category . "client")
(name . "Emacs Jabber client")
(type . ,(if (memq window-system
'(x w32 mac))
"pc"
"console"))))
,@(mapcar
#'(lambda (featurename)
`(feature ((var . ,featurename))))
jabber-advertised-features)))
(add-to-list 'jabber-jid-info-menu
(cons "Send items disco query" 'jabber-get-disco-items))
(defun jabber-get-disco-items (jc to &optional node)
"Send a service discovery request for items"
(interactive (list (jabber-read-account)
(jabber-read-jid-completing "Send items disco request to: ")
(jabber-read-node "Node (or leave empty): ")))
(jabber-send-iq jc to
"get"
(list 'query (append (list (cons 'xmlns "http://jabber.org/protocol/disco#items"))
(if (> (length node) 0)
(list (cons 'node node)))))
#'jabber-process-data #'jabber-process-disco-items
#'jabber-process-data "Item discovery failed"))
(add-to-list 'jabber-jid-info-menu
(cons "Send info disco query" 'jabber-get-disco-info))
(defun jabber-get-disco-info (jc to &optional node)
"Send a service discovery request for info"
(interactive (list (jabber-read-account)
(jabber-read-jid-completing "Send info disco request to: ")
(jabber-read-node "Node (or leave empty): ")))
(jabber-send-iq jc to
"get"
(list 'query (append (list (cons 'xmlns "http://jabber.org/protocol/disco#info"))
(if (> (length node) 0)
(list (cons 'node node)))))
#'jabber-process-data #'jabber-process-disco-info
#'jabber-process-data "Info discovery failed"))
(provide 'jabber-disco)
;;; arch-tag: 71f5c76f-2956-4ed2-b871-9f5fe198092d
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