574 lines
20 KiB
Python
574 lines
20 KiB
Python
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# Copyright (C) 2006-2014 Yann Leboulanger <asterix AT lagaule.org>
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# Copyright (C) 2006-2007 Tomasz Melcer <liori AT exroot.org>
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# Copyright (C) 2007 Jean-Marie Traissard <jim AT lapin.org>
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# Copyright (C) 2008 Brendan Taylor <whateley AT gmail.com>
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# Stephan Erb <steve-e AT h3c.de>
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# Copyright (C) 2018 Philipp Hörist <philipp AT hoerist.com>
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#
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# This file is part of Gajim.
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#
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# Gajim is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published
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# by the Free Software Foundation; version 3 only.
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#
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# Gajim is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Gajim. If not, see <http://www.gnu.org/licenses/>.
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import logging
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import nbxmpp
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from gajim.common import helpers
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from gajim.common import dataforms
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from gajim.common import app
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from gajim.common.nec import NetworkIncomingEvent
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log = logging.getLogger('gajim.c.m.commands')
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class AdHocCommand:
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commandnode = 'command'
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commandname = 'The Command'
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commandfeatures = (nbxmpp.NS_DATA,)
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@staticmethod
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def isVisibleFor(samejid):
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"""
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This returns True if that command should be visible and invokable for
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others
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samejid - True when command is invoked by an entity with the same bare
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jid.
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"""
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return True
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def __init__(self, conn, jid, sessionid):
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self.connection = conn
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self.jid = jid
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self.sessionid = sessionid
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def buildResponse(self, request, status='executing', defaultaction=None,
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actions=None):
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assert status in ('executing', 'completed', 'canceled')
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response = request.buildReply('result')
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cmd = response.getTag('command', namespace=nbxmpp.NS_COMMANDS)
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cmd.setAttr('sessionid', self.sessionid)
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cmd.setAttr('node', self.commandnode)
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cmd.setAttr('status', status)
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if defaultaction is not None or actions is not None:
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if defaultaction is not None:
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assert defaultaction in ('cancel', 'execute', 'prev', 'next',
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'complete')
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attrs = {'action': defaultaction}
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else:
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attrs = {}
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cmd.addChild('actions', attrs, actions)
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return response, cmd
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def badRequest(self, stanza):
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self.connection.connection.send(
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nbxmpp.Error(stanza, nbxmpp.NS_STANZAS + ' bad-request'))
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def cancel(self, request):
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response = self.buildResponse(request, status='canceled')[0]
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self.connection.connection.send(response)
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return False # finish the session
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class ChangeStatusCommand(AdHocCommand):
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commandnode = 'change-status'
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commandname = _('Change status information')
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def __init__(self, conn, jid, sessionid):
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AdHocCommand.__init__(self, conn, jid, sessionid)
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self.cb = self.first_step
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@staticmethod
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def isVisibleFor(samejid):
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"""
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Change status is visible only if the entity has the same bare jid
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"""
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return samejid
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def execute(self, request):
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return self.cb(request)
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def first_step(self, request):
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# first query...
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response, cmd = self.buildResponse(request,
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defaultaction='execute',
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actions=['execute'])
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cmd.addChild(
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node=dataforms.SimpleDataForm(
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title=_('Change status'),
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instructions=_('Set the presence type and description'),
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fields=[
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dataforms.Field(
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'list-single',
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var='presence-type',
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label='Type of presence:',
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options=[
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('chat', _('Free for chat')),
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('online', _('Online')),
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('away', _('Away')),
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('xa', _('Extended away')),
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('dnd', _('Do not disturb')),
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('offline', _('Offline - disconnect'))],
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value='online',
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required=True),
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dataforms.Field(
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'text-multi',
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var='presence-desc',
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label=_('Presence description:'))
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]
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)
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)
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self.connection.connection.send(response)
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# for next invocation
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self.cb = self.second_step
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return True # keep the session
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def second_step(self, request):
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# check if the data is correct
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try:
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form = dataforms.SimpleDataForm(
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extend=request.getTag('command').getTag('x'))
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except Exception:
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self.badRequest(request)
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return False
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try:
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presencetype = form['presence-type'].value
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if presencetype not in ('chat', 'online', 'away',
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'xa', 'dnd', 'offline'):
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self.badRequest(request)
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return False
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except Exception:
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# KeyError if there's no presence-type field in form or
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# AttributeError if that field is of wrong type
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self.badRequest(request)
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return False
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try:
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presencedesc = form['presence-desc'].value
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except Exception: # same exceptions as in last comment
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presencedesc = ''
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response, cmd = self.buildResponse(request, status='completed')
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cmd.addChild('note', {}, _('The status has been changed.'))
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# if going offline, we need to push response so it won't go into
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# queue and disappear
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self.connection.connection.send(response,
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now=presencetype == 'offline')
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# send new status
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app.interface.roster.send_status(
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self.connection.name, presencetype, presencedesc)
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return False # finish the session
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def find_current_groupchats(account):
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from gajim import message_control
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rooms = []
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for gc_control in app.interface.msg_win_mgr.get_controls(
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message_control.TYPE_GC) + \
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app.interface.minimized_controls[account].values():
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acct = gc_control.account
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# check if account is the good one
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if acct != account:
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continue
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room_jid = gc_control.room_jid
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nick = gc_control.nick
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if (room_jid in app.gc_connected[acct] and
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app.gc_connected[acct][room_jid]):
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rooms.append((room_jid, nick,))
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return rooms
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class LeaveGroupchatsCommand(AdHocCommand):
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commandnode = 'leave-groupchats'
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commandname = _('Leave Groupchats')
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def __init__(self, conn, jid, sessionid):
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AdHocCommand.__init__(self, conn, jid, sessionid)
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self.cb = self.first_step
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@staticmethod
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def isVisibleFor(samejid):
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"""
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Leave groupchats is visible only if the entity has the same bare jid
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"""
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return samejid
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def execute(self, request):
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return self.cb(request)
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def first_step(self, request):
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# first query...
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response, cmd = self.buildResponse(request,
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defaultaction='execute',
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actions=['execute'])
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options = []
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account = self.connection.name
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for gc in find_current_groupchats(account):
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options.append(
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('%s' % gc[0],
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_('%(nickname)s on %(room_jid)s') % {'nickname': gc[1],
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'room_jid': gc[0]}))
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if not len(options):
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response, cmd = self.buildResponse(request, status='completed')
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cmd.addChild('note', {}, _('You have not joined a groupchat.'))
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self.connection.connection.send(response)
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return False
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cmd.addChild(
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node=dataforms.SimpleDataForm(
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title=_('Leave Groupchats'),
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instructions=_('Choose the groupchats you want to leave'),
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fields=[
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dataforms.Field(
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'list-multi',
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var='groupchats',
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label=_('Groupchats'),
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options=options,
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required=True)
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]
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)
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)
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self.connection.connection.send(response)
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# for next invocation
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self.cb = self.second_step
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return True # keep the session
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def second_step(self, request):
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# check if the data is correct
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try:
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form = dataforms.SimpleDataForm(
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extend=request.getTag('command').getTag('x'))
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except Exception:
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self.badRequest(request)
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return False
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try:
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gc = form['groupchats'].values
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except Exception: # KeyError if there's no groupchats in form
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self.badRequest(request)
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return False
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account = self.connection.name
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try:
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for room_jid in gc:
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gc_control = app.interface.msg_win_mgr.get_gc_control(
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room_jid, account)
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if not gc_control:
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gc_control = app.interface.minimized_controls[account][room_jid]
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gc_control.shutdown()
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app.interface.roster.remove_groupchat(room_jid, account)
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continue
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gc_control.parent_win.remove_tab(gc_control, None, force=True)
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except Exception: # KeyError if there's no such room opened
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self.badRequest(request)
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return False
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response, cmd = self.buildResponse(request, status='completed')
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note = _('You left the following groupchats:')
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for room_jid in gc:
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note += '\n\t' + room_jid
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cmd.addChild('note', {}, note)
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self.connection.connection.send(response)
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return False
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class AdHocCommands:
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def __init__(self, con):
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self._con = con
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self._account = con.name
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self.handlers = [
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('iq', self._execute_command_received, 'set', nbxmpp.NS_COMMANDS)
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]
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# a list of all commands exposed: node -> command class
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self._commands = {}
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if app.config.get('remote_commands'):
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for cmdobj in (ChangeStatusCommand, LeaveGroupchatsCommand):
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self._commands[cmdobj.commandnode] = cmdobj
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# a list of sessions; keys are tuples (jid, sessionid, node)
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self._sessions = {}
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def get_own_bare_jid(self):
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return self._con.get_own_jid().getStripped()
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def is_same_jid(self, jid):
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"""
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Test if the bare jid given is the same as our bare jid
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"""
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return nbxmpp.JID(jid).getStripped() == self.get_own_bare_jid()
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def command_list_query(self, stanza):
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iq = stanza.buildReply('result')
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jid = helpers.get_full_jid_from_iq(stanza)
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q = iq.getTag('query')
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# buildReply don't copy the node attribute. Re-add it
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q.setAttr('node', nbxmpp.NS_COMMANDS)
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for node, cmd in self._commands.items():
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if cmd.isVisibleFor(self.is_same_jid(jid)):
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q.addChild('item', {
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# TODO: find the jid
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'jid': str(self._con.get_own_jid()),
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'node': node,
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'name': cmd.commandname})
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self._con.connection.send(iq)
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def command_info_query(self, stanza):
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"""
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Send disco#info result for query for command (XEP-0050, example 6.).
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Return True if the result was sent, False if not
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"""
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try:
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jid = helpers.get_full_jid_from_iq(stanza)
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except helpers.InvalidFormat:
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log.warning('Invalid JID: %s, ignoring it' % stanza.getFrom())
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return
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node = stanza.getTagAttr('query', 'node')
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if node not in self._commands:
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return False
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cmd = self._commands[node]
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if cmd.isVisibleFor(self.is_same_jid(jid)):
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iq = stanza.buildReply('result')
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q = iq.getTag('query')
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q.addChild('identity',
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attrs={'type': 'command-node',
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'category': 'automation',
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'name': cmd.commandname})
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q.addChild('feature', attrs={'var': nbxmpp.NS_COMMANDS})
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for feature in cmd.commandfeatures:
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q.addChild('feature', attrs={'var': feature})
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self._con.connection.send(iq)
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return True
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return False
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def command_items_query(self, stanza):
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"""
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Send disco#items result for query for command.
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Return True if the result was sent, False if not.
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"""
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jid = helpers.get_full_jid_from_iq(stanza)
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node = stanza.getTagAttr('query', 'node')
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if node not in self._commands:
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return False
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cmd = self._commands[node]
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if cmd.isVisibleFor(self.is_same_jid(jid)):
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||
|
|
iq = stanza.buildReply('result')
|
||
|
|
self._con.connection.send(iq)
|
||
|
|
return True
|
||
|
|
|
||
|
|
return False
|
||
|
|
|
||
|
|
def _execute_command_received(self, con, stanza):
|
||
|
|
jid = helpers.get_full_jid_from_iq(stanza)
|
||
|
|
|
||
|
|
cmd = stanza.getTag('command')
|
||
|
|
if cmd is None:
|
||
|
|
log.error('Malformed stanza (no command node) %s', stanza)
|
||
|
|
raise nbxmpp.NodeProcessed
|
||
|
|
|
||
|
|
node = cmd.getAttr('node')
|
||
|
|
if node is None:
|
||
|
|
log.error('Malformed stanza (no node attr) %s', stanza)
|
||
|
|
raise nbxmpp.NodeProcessed
|
||
|
|
|
||
|
|
sessionid = cmd.getAttr('sessionid')
|
||
|
|
if sessionid is None:
|
||
|
|
# we start a new command session
|
||
|
|
# only if we are visible for the jid and command exist
|
||
|
|
if node not in self._commands.keys():
|
||
|
|
self._con.connection.send(
|
||
|
|
nbxmpp.Error(
|
||
|
|
stanza, nbxmpp.NS_STANZAS + ' item-not-found'))
|
||
|
|
log.warning('Comand %s does not exist: %s', node, jid)
|
||
|
|
raise nbxmpp.NodeProcessed
|
||
|
|
|
||
|
|
newcmd = self._commands[node]
|
||
|
|
if not newcmd.isVisibleFor(self.is_same_jid(jid)):
|
||
|
|
log.warning('Command not visible for jid: %s', jid)
|
||
|
|
raise nbxmpp.NodeProcessed
|
||
|
|
|
||
|
|
# generate new sessionid
|
||
|
|
sessionid = self._con.connection.getAnID()
|
||
|
|
|
||
|
|
# create new instance and run it
|
||
|
|
obj = newcmd(conn=self, jid=jid, sessionid=sessionid)
|
||
|
|
rc = obj.execute(stanza)
|
||
|
|
if rc:
|
||
|
|
self._sessions[(jid, sessionid, node)] = obj
|
||
|
|
log.info('Comand %s executed: %s', node, jid)
|
||
|
|
raise nbxmpp.NodeProcessed
|
||
|
|
else:
|
||
|
|
# the command is already running, check for it
|
||
|
|
magictuple = (jid, sessionid, node)
|
||
|
|
if magictuple not in self._sessions:
|
||
|
|
# we don't have this session... ha!
|
||
|
|
log.warning('Invalid session %s', magictuple)
|
||
|
|
raise nbxmpp.NodeProcessed
|
||
|
|
|
||
|
|
action = cmd.getAttr('action')
|
||
|
|
obj = self._sessions[magictuple]
|
||
|
|
|
||
|
|
try:
|
||
|
|
if action == 'cancel':
|
||
|
|
rc = obj.cancel(stanza)
|
||
|
|
elif action == 'prev':
|
||
|
|
rc = obj.prev(stanza)
|
||
|
|
elif action == 'next':
|
||
|
|
rc = obj.next(stanza)
|
||
|
|
elif action == 'execute' or action is None:
|
||
|
|
rc = obj.execute(stanza)
|
||
|
|
elif action == 'complete':
|
||
|
|
rc = obj.complete(stanza)
|
||
|
|
else:
|
||
|
|
# action is wrong. stop the session, send error
|
||
|
|
raise AttributeError
|
||
|
|
except AttributeError:
|
||
|
|
# the command probably doesn't handle invoked action...
|
||
|
|
# stop the session, return error
|
||
|
|
del self._sessions[magictuple]
|
||
|
|
log.warning('Wrong action %s %s', node, jid)
|
||
|
|
raise nbxmpp.NodeProcessed
|
||
|
|
|
||
|
|
# delete the session if rc is False
|
||
|
|
if not rc:
|
||
|
|
del self._sessions[magictuple]
|
||
|
|
|
||
|
|
raise nbxmpp.NodeProcessed
|
||
|
|
|
||
|
|
def request_command_list(self, jid):
|
||
|
|
"""
|
||
|
|
Request the command list.
|
||
|
|
"""
|
||
|
|
log.info('Request Command List: %s', jid)
|
||
|
|
query = nbxmpp.Iq(typ='get', to=jid, queryNS=nbxmpp.NS_DISCO_ITEMS)
|
||
|
|
query.setQuerynode(nbxmpp.NS_COMMANDS)
|
||
|
|
|
||
|
|
self._con.connection.SendAndCallForResponse(
|
||
|
|
query, self._command_list_received)
|
||
|
|
|
||
|
|
def _command_list_received(self, stanza):
|
||
|
|
if not nbxmpp.isResultNode(stanza):
|
||
|
|
log.info('Error: %s', stanza.getError())
|
||
|
|
|
||
|
|
app.nec.push_incoming_event(
|
||
|
|
AdHocCommandError(None, conn=self._con,
|
||
|
|
error=stanza.getError()))
|
||
|
|
return
|
||
|
|
|
||
|
|
items = stanza.getQueryPayload()
|
||
|
|
commandlist = []
|
||
|
|
if items:
|
||
|
|
commandlist = [(t.getAttr('node'), t.getAttr('name')) for t in items]
|
||
|
|
|
||
|
|
log.info('Received: %s', commandlist)
|
||
|
|
app.nec.push_incoming_event(
|
||
|
|
AdHocCommandListReceived(
|
||
|
|
None, conn=self._con, commandlist=commandlist))
|
||
|
|
|
||
|
|
def send_command(self, jid, node, session_id,
|
||
|
|
form, action='execute'):
|
||
|
|
"""
|
||
|
|
Send the command with data form. Wait for reply
|
||
|
|
"""
|
||
|
|
log.info('Send Command: %s %s %s %s', jid, node, session_id, action)
|
||
|
|
stanza = nbxmpp.Iq(typ='set', to=jid)
|
||
|
|
cmdnode = stanza.addChild('command',
|
||
|
|
namespace=nbxmpp.NS_COMMANDS,
|
||
|
|
attrs={'node': node,
|
||
|
|
'action': action})
|
||
|
|
|
||
|
|
if session_id:
|
||
|
|
cmdnode.setAttr('sessionid', session_id)
|
||
|
|
|
||
|
|
if form:
|
||
|
|
cmdnode.addChild(node=form.get_purged())
|
||
|
|
|
||
|
|
self._con.connection.SendAndCallForResponse(
|
||
|
|
stanza, self._action_response_received)
|
||
|
|
|
||
|
|
def _action_response_received(self, stanza):
|
||
|
|
if not nbxmpp.isResultNode(stanza):
|
||
|
|
log.info('Error: %s', stanza.getError())
|
||
|
|
|
||
|
|
app.nec.push_incoming_event(
|
||
|
|
AdHocCommandError(None, conn=self._con,
|
||
|
|
error=stanza.getError()))
|
||
|
|
return
|
||
|
|
log.info('Received action response')
|
||
|
|
command = stanza.getTag('command')
|
||
|
|
app.nec.push_incoming_event(
|
||
|
|
AdHocCommandActionResponse(
|
||
|
|
None, conn=self._con, command=command))
|
||
|
|
|
||
|
|
def send_cancel(self, jid, node, session_id):
|
||
|
|
"""
|
||
|
|
Send the command with action='cancel'
|
||
|
|
"""
|
||
|
|
log.info('Cancel: %s %s %s', jid, node, session_id)
|
||
|
|
stanza = nbxmpp.Iq(typ='set', to=jid)
|
||
|
|
stanza.addChild('command', namespace=nbxmpp.NS_COMMANDS,
|
||
|
|
attrs={
|
||
|
|
'node': node,
|
||
|
|
'sessionid': session_id,
|
||
|
|
'action': 'cancel'
|
||
|
|
})
|
||
|
|
|
||
|
|
self._con.connection.SendAndCallForResponse(
|
||
|
|
stanza, self._cancel_result_received)
|
||
|
|
|
||
|
|
def _cancel_result_received(self, stanza):
|
||
|
|
if not nbxmpp.isResultNode(stanza):
|
||
|
|
log.warning('Error: %s', stanza.getError())
|
||
|
|
else:
|
||
|
|
log.info('Cancel successful')
|
||
|
|
|
||
|
|
|
||
|
|
class AdHocCommandError(NetworkIncomingEvent):
|
||
|
|
name = 'adhoc-command-error'
|
||
|
|
base_network_events = []
|
||
|
|
|
||
|
|
|
||
|
|
class AdHocCommandListReceived(NetworkIncomingEvent):
|
||
|
|
name = 'adhoc-command-list'
|
||
|
|
base_network_events = []
|
||
|
|
|
||
|
|
|
||
|
|
class AdHocCommandActionResponse(NetworkIncomingEvent):
|
||
|
|
name = 'adhoc-command-action-response'
|
||
|
|
base_network_events = []
|
||
|
|
|
||
|
|
|
||
|
|
def get_instance(*args, **kwargs):
|
||
|
|
return AdHocCommands(*args, **kwargs), 'AdHocCommands'
|