libervia-backend/src/plugins/plugin_xep_0092.py
2016-01-03 16:28:30 +01:00

122 lines
4.6 KiB
Python

#!/usr/bin/python
# -*- coding: utf-8 -*-
# SàT plugin for Software Version (XEP-0092)
# Copyright (C) 2009-2016 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 twisted.internet import reactor, defer
from twisted.words.protocols.jabber import jid
from wokkel import compat
from sat.core import exceptions
from sat.core.log import getLogger
log = getLogger(__name__)
NS_VERSION = "jabber:iq:version"
TIMEOUT = 10
PLUGIN_INFO = {
"name": "Software Version Plugin",
"import_name": "XEP-0092",
"type": "XEP",
"protocols": ["XEP-0092"],
"dependencies": [],
"recommendations": [C.TEXT_CMDS],
"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):
log.info(_("Plugin XEP_0092 initialization"))
self.host = host
host.bridge.addMethod("getSoftwareVersion", ".plugin", in_sign='ss', out_sign='(sss)', method=self._getVersion, async=True)
try:
self.host.plugins[C.TEXT_CMDS].addWhoIsCb(self._whois, 50)
except KeyError:
log.info(_("Text commands not available"))
def _getVersion(self, entity_jid_s, profile_key):
def prepareForBridge(data):
name, version, os = data
return (name or '', version or '', os or '')
d = self.getVersion(jid.JID(entity_jid_s), profile_key)
d.addCallback(prepareForBridge)
return d
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 (tuple): a defered which fire a 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)
def getVersion(dummy):
iq_elt = compat.IQ(client.xmlstream, 'get')
iq_elt['to'] = jid_.full()
iq_elt.addElement("query", NS_VERSION)
d = iq_elt.send()
d.addCallback(self._gotVersion)
return d
d = self.host.checkFeature(NS_VERSION, jid_, client.profile)
d.addCallback(getVersion)
reactor.callLater(TIMEOUT, d.cancel) # XXX: timeout needed because some clients don't answer the IQ
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)
def _whois(self, whois_msg, mess_data, target_jid, profile):
""" Add software/OS information to whois """
def versionCb(version_data):
name, version, os = version_data
if name:
whois_msg.append(_("Client name: %s") % name)
if version:
whois_msg.append(_("Client version: %s") % version)
if os:
whois_msg.append(_("Operating system: %s") % os)
def versionEb(failure):
failure.trap(exceptions.FeatureNotFound, defer.CancelledError)
if failure.check(failure,exceptions.FeatureNotFound):
whois_msg.append(_("Software version not available"))
else:
whois_msg.append(_("Client software version request timeout"))
d = self.getVersion(target_jid, profile)
d.addCallbacks(versionCb, versionEb)
return d