From ad7c1b06f4622d094fc6e3cc42b61bdb63b858f6 Mon Sep 17 00:00:00 2001
From: Tom Nichols <tmnichols@gmail.com>
Date: Tue, 13 Jul 2010 17:14:38 -0400
Subject: XEP-0202 Entity Time plugin and fix for unused 'sid' parameter in
 StanzaBase.

---
 sleekxmpp/plugins/xep_0202.py     | 80 +++++++++++++++++++++++++++++++++++++++
 sleekxmpp/xmlstream/stanzabase.py |  1 +
 2 files changed, 81 insertions(+)
 create mode 100644 sleekxmpp/plugins/xep_0202.py

diff --git a/sleekxmpp/plugins/xep_0202.py b/sleekxmpp/plugins/xep_0202.py
new file mode 100644
index 00000000..332fd2de
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0202.py
@@ -0,0 +1,80 @@
+"""
+	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
+		time_str = resp.find(_XMLNS + 'time/utc').text
+		dt_format = '%Y-%m-%dT%H:%M:%S'
+		if time_str.find('.') > -1: dt_format += '.%f' # milliseconds in format 
+		return TimeElement( 
+			datetime.strptime( time_str, dt_format + 'Z' ), 
+			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"):
+		self.utc = datetime.utcnow() if utc is None else 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
diff --git a/sleekxmpp/xmlstream/stanzabase.py b/sleekxmpp/xmlstream/stanzabase.py
index b9267b88..c6174914 100644
--- a/sleekxmpp/xmlstream/stanzabase.py
+++ b/sleekxmpp/xmlstream/stanzabase.py
@@ -331,6 +331,7 @@ class StanzaBase(ElementBase):
 			self['to'] = sto
 		if sfrom is not None:
 			self['from'] = sfrom
+		if sid is not None: self['id'] = sid
 		self.tag = "{%s}%s" % (self.namespace, self.name)
 	
 	def setType(self, value):
-- 
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