--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/plugins/plugin_xep_0092.py	Sat Mar 22 13:44:33 2014 +0100
@@ -0,0 +1,80 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# SàT plugin for Software Version (XEP-0092)
+# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014 Jérôme Poisson (goffi@goffi.org)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from sat.core.i18n import _
+from sat.core.constants import Const as C
+from wokkel import disco, iwokkel, data_form, compat
+from sat.core import exceptions
+from logging import debug, info, warning, error
+
+NS_VERSION = "jabber:iq:version"
+
+PLUGIN_INFO = {
+    "name": "Software Version Plugin",
+    "import_name": "XEP-0092",
+    "type": "XEP",
+    "protocols": ["XEP-0092"],
+    "dependencies": [],
+    "main": "XEP_0092",
+    "handler": "no", # version is already handler in core.xmpp module
+    "description": _("""Implementation of Software Version""")
+}
+
+
+class XEP_0092(object):
+
+    def __init__(self, host):
+        info(_("Plugin XEP_0092 initialization"))
+        self.host = host
+
+    def getVersion(self, jid_, profile_key=C.PROF_KEY_NONE):
+        """ Ask version of the client that jid_ is running
+        @param jid_: jid from who we want to know client's version
+        @param profile_key: %(doc_profile_key)s
+        @return: a defered which fire tuple with the following data (None if not available):
+                 - name: Natural language name of the software
+                 - version: specific version of the software
+                 - os: operating system of the queried entity
+        """
+        client = self.host.getClient(profile_key)
+        if not client:
+            raise exceptions.ProfileUnknownError
+        iq_elt = compat.IQ(client.xmlstream, 'get')
+        iq_elt['to'] = jid_.full()
+        query_elt = iq_elt.addElement("query", NS_VERSION)
+        d = iq_elt.send()
+        d.addCallback(self._gotVersion)
+        return d
+
+    def _gotVersion(self, iq_elt):
+        try:
+            query_elt = iq_elt.elements(NS_VERSION, 'query').next()
+        except StopIteration:
+            raise exceptions.DataError
+        ret = []
+        for name in ('name', 'version', 'os'):
+            try:
+                data_elt = query_elt.elements(NS_VERSION, name).next()
+                ret.append(unicode(data_elt))
+            except StopIteration:
+                ret.append(None)
+
+        return tuple(ret)
+
+