9578053 Jan 22 2022 distfiles.gentoo.org/distfiles/gajim-1.3.3-2.tar.gz

gajim/common/modules/entity_time.py

@@ -0,0 +1,116 @@
+# This file is part of Gajim.
+#
+# Gajim 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; version 3 only.
+#
+# Gajim 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 Gajim.  If not, see <http://www.gnu.org/licenses/>.
+
+# XEP-0202: Entity Time
+
+import time
+
+import nbxmpp
+from nbxmpp.namespaces import Namespace
+from nbxmpp.structs import StanzaHandler
+from nbxmpp.modules.date_and_time import parse_datetime
+from nbxmpp.modules.date_and_time import create_tzinfo
+
+from gajim.common import app
+from gajim.common.nec import NetworkEvent
+from gajim.common.modules.base import BaseModule
+
+
+class EntityTime(BaseModule):
+    def __init__(self, con):
+        BaseModule.__init__(self, con)
+
+        self.handlers = [
+            StanzaHandler(name='iq',
+                          callback=self._answer_request,
+                          typ='get',
+                          ns=Namespace.TIME_REVISED),
+        ]
+
+    def request_entity_time(self, jid, resource):
+        if not app.account_is_available(self._account):
+            return
+
+        if resource:
+            jid += '/' + resource
+        iq = nbxmpp.Iq(to=jid, typ='get')
+        iq.addChild('time', namespace=Namespace.TIME_REVISED)
+
+        self._log.info('Requested: %s', jid)
+
+        self._con.connection.SendAndCallForResponse(iq, self._result_received)
+
+    def _result_received(self, _nbxmpp_client, stanza):
+        time_info = None
+        if not nbxmpp.isResultNode(stanza):
+            self._log.info('Error: %s', stanza.getError())
+        else:
+            time_info = self._extract_info(stanza)
+
+        self._log.info('Received: %s %s', stanza.getFrom(), time_info)
+
+        app.nec.push_incoming_event(NetworkEvent('time-result-received',
+                                                 conn=self._con,
+                                                 jid=stanza.getFrom(),
+                                                 time_info=time_info))
+
+    def _extract_info(self, stanza):
+        time_ = stanza.getTag('time')
+        if not time_:
+            self._log.warning('No time node: %s', stanza)
+            return None
+
+        tzo = time_.getTag('tzo').getData()
+        if not tzo:
+            self._log.warning('Wrong tzo node: %s', stanza)
+            return None
+
+        remote_tz = create_tzinfo(tz_string=tzo)
+        if remote_tz is None:
+            self._log.warning('Wrong tzo node: %s', stanza)
+            return None
+
+        utc_time = time_.getTag('utc').getData()
+        date_time = parse_datetime(utc_time, check_utc=True)
+        if date_time is None:
+            self._log.warning('Wrong timezone definition: %s %s',
+                              utc_time, stanza.getFrom())
+            return None
+
+        date_time = date_time.astimezone(remote_tz)
+        return date_time.strftime('%c %Z')
+
+    def _answer_request(self, _con, stanza, _properties):
+        self._log.info('%s asked for the time', stanza.getFrom())
+        if app.settings.get_account_setting(self._account, 'send_time_info'):
+            iq = stanza.buildReply('result')
+            time_ = iq.setTag('time', namespace=Namespace.TIME_REVISED)
+            formated_time = time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime())
+            time_.setTagData('utc', formated_time)
+            isdst = time.localtime().tm_isdst
+            zone = -(time.timezone, time.altzone)[isdst] / 60.0
+            tzo = (zone / 60, abs(zone % 60))
+            time_.setTagData('tzo', '%+03d:%02d' % (tzo))
+            self._log.info('Answer: %s %s', formated_time, '%+03d:%02d' % (tzo))
+        else:
+            iq = stanza.buildReply('error')
+            err = nbxmpp.ErrorNode(nbxmpp.ERR_SERVICE_UNAVAILABLE)
+            iq.addChild(node=err)
+            self._log.info('Send service-unavailable')
+        self._con.connection.send(iq)
+        raise nbxmpp.NodeProcessed
+
+
+def get_instance(*args, **kwargs):
+    return EntityTime(*args, **kwargs), 'EntityTime'