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# Slixmpp: The Slick XMPP Library
# Copyright (C) 2010 Nathanael C. Fritz
# This file is part of Slixmpp.
# See the file LICENSE for copying permission.
import logging
from typing import Optional
from slixmpp import JID
from slixmpp.stanza.iq import Iq
from slixmpp.xmlstream import register_stanza_plugin
from slixmpp.xmlstream.handler import Callback
from slixmpp.xmlstream.matcher import StanzaPath
from slixmpp.plugins import BasePlugin
from slixmpp.plugins import xep_0082
from slixmpp.plugins.xep_0202 import stanza
log = logging.getLogger(__name__)
class XEP_0202(BasePlugin):
"""
XEP-0202: Entity Time
"""
name = 'xep_0202'
description = 'XEP-0202: Entity Time'
dependencies = {'xep_0030', 'xep_0082'}
stanza = stanza
default_config = {
#: As a default, respond to time requests with the
#: local time returned by XEP-0082. However, a
#: custom function can be supplied which accepts
#: the JID of the entity to query for the time.
'local_time': None,
'tz_offset': 0
}
def plugin_init(self):
"""Start the XEP-0202 plugin."""
if not self.local_time:
def default_local_time(jid):
return xep_0082.datetime(offset=self.tz_offset)
self.local_time = default_local_time
self.xmpp.register_handler(
Callback('Entity Time',
StanzaPath('iq@type=get/entity_time'),
self._handle_time_request))
register_stanza_plugin(Iq, stanza.EntityTime)
def plugin_end(self):
self.xmpp['xep_0030'].del_feature(feature='urn:xmpp:time')
self.xmpp.remove_handler('Entity Time')
def session_bind(self, jid):
self.xmpp['xep_0030'].add_feature('urn:xmpp:time')
def _handle_time_request(self, iq: Iq):
"""
Respond to a request for the local time.
The time is taken from self.local_time(), which may be replaced
during plugin configuration with a function that maps JIDs to
times.
:param iq: The Iq time request stanza.
"""
iq = iq.reply()
iq['entity_time']['time'] = self.local_time(iq['to'])
iq.send()
def get_entity_time(self, to: JID, ifrom: Optional[JID] = None, **iqargs):
"""
Request the time from another entity.
:param to: JID of the entity to query.
"""
iq = self.xmpp.Iq()
iq['type'] = 'get'
iq['to'] = to
iq['from'] = ifrom
iq.enable('entity_time')
return iq.send(**iqargs)
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