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"""
SleekXMPP: The Sleek XMPP Library
Copyright (C) 2007 Nathanael C. Fritz
This file is part of SleekXMPP.
SleekXMPP 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.
SleekXMPP 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 SleekXMPP; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""
from . import base
from xml.etree import cElementTree as ET
from datetime import datetime
XMLNS = 'urn:xmpp:time'
_XMLNS = '{%s}' % XMLNS
class xep_0202(base.base_plugin):
"""
Implements XEP-0202 Entity Time
TODO currently no support for the user's 'local' timezone; `<tzo>` is always reported as `Z` (UTC).
"""
def plugin_init(self):
self.xep = '0202'
self.description = "Entity Time"
self.xmpp.add_handler("<iq type='get'><time xmlns='%s' /></iq>" % XMLNS, self._handle_get)
def post_init(self):
base.base_plugin.post_init(self)
disco = self.xmpp.plugin.get('xep_0030',None)
if disco: disco.add_feature(XMLNS)
def send_request(self,to):
iq = self.xmpp.Iq( stream=self.xmpp, sto=to, stype='get',
xml = ET.Element(_XMLNS + 'time') )
resp = iq.send(iq) # wait for response
return TimeElement(
resp.find(_XMLNS + 'time/utc').text,
xml.find(_XMLNS + 'time/tzo').text )
def _handle_get(self,xml):
iq = self.xmpp.Iq( sid=xml.get('id'), sto=xml.get('from'), stype='result' )
iq.append( TimeElement().to_xml() )
self.xmpp.send(iq)
class TimeElement:
"""
Time response data
"""
def __init__(self, utc=None, tzo="Z"):
if utc is None:
self.utc = datetime.utcnow()
elif type(utc) is str: # parse ISO string
dt_format = '%Y-%m-%dT%H:%M:%S'
if utc.find('.') > -1: dt_format += '.%f' # milliseconds in format
self.utc = datetime.strptime( time_str, dt_format + 'Z' )
elif type(utc) is float: # parse posix timestamp
self.utc = datetime.utcfromtimestamp()
else: self.utc = utc
self.tzo = tzo
def to_xml(self):
time = ET.Element(_XMLNS+'time')
child = ET.Element('tzo')
child.text = str(self.tzo)
time.append( child )
child = ET.Element('utc')
child.text = datetime.isoformat(self.utc) + "Z"
time.append( child )
return time
def __str__(self):
return ET.tostring( self.to_xml() )
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