libervia-backend/plugins/plugin_xep_0100.py

127 lines
6.1 KiB
Python
Executable file

#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
SAT plugin for managing gateways (xep-0100)
Copyright (C) 2009, 2010 Jérôme Poisson (goffi@goffi.org)
This program 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 3 of the License, or
(at your option) any later version.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
"""
from logging import debug, info, error
from twisted.internet import protocol
from twisted.words.protocols.jabber import client, jid
from twisted.words.protocols.jabber import error as jab_error
import twisted.internet.error
import pdb
from wokkel import disco, iwokkel
PLUGIN_INFO = {
"name": "Gateways Plugin",
"import_name": "XEP_0100",
"type": "XEP",
"protocols": ["XEP-0100"],
"dependencies": ["XEP_0077"],
"main": "XEP_0100",
"description": _("""Implementation of Gateways protocol""")
}
class XEP_0100():
def __init__(self, host):
info(_("Gateways plugin initialization"))
self.host = host
self.__gateways = {} #dict used to construct the answer to findGateways. Key = target jid
host.bridge.addMethod("findGateways", ".communication", in_sign='ss', out_sign='s', method=self.findGateways)
host.bridge.addMethod("gatewayRegister", ".request", in_sign='ssa(ss)s', out_sign='s', method=self.gatewayRegister)
def __inc_handled_items(self, request_id):
self.__gateways[request_id]['__handled_items']+=1
if self.__gateways[request_id]['__total_items'] == self.__gateways[request_id]['__handled_items']:
debug (_("All items checked for id [%s]") % str(request_id))
del self.__gateways[request_id]['__total_items']
del self.__gateways[request_id]['__handled_items']
self.host.actionResultExt(request_id,"DICT_DICT",self.__gateways[request_id])
def discoInfo(self, disco, entity, request_id):
"""Find disco infos about entity, to check if it is a gateway"""
for identity in disco.identities:
if identity[0] == 'gateway':
print (_("Found gateway (%(jid)s): %(identity)s") % {'jid':entity.full(), 'identity':disco.identities[identity]})
self.__gateways[request_id][entity.full()] = {
'name':disco.identities[identity],
'type':identity[1]
}
self.__inc_handled_items(request_id)
def discoInfoErr(self, failure, entity, request_id):
"""Something is going wrong with disco"""
failure.trap(jab_error.StanzaError,twisted.internet.error.ConnectionLost)
error(_("Error when discovering [%(jid)s]: %(error)s") % {'jid':entity.full(), 'error':failure.getErrorMessage()})
self.__inc_handled_items(request_id)
def discoItems(self, disco, request_id, target, client):
"""Look for items with disco protocol, and ask infos for each one"""
#FIXME: target is used as we can't find the original iq node (parent is None)
# an other way would avoid this useless parameter (is there a way with wokkel ?)
if len(disco._items) == 0:
debug (_("No gateway found"))
self.host.actionResultExt(request_id,"DICT_DICT",{})
return
self.__gateways[request_id] = {'__total_items':len(disco._items), '__handled_items':0, '__private__':{'target':target.full()}}
for item in disco._items:
#TODO: need to set a timeout for theses requests
debug (_("item found: %s"), item.name)
client.disco.requestInfo(item.entity).addCallback(self.discoInfo, entity=item.entity, request_id=request_id).addErrback(self.discoInfoErr, entity=item.entity, request_id=request_id)
def discoItemsErr(self, failure, request_id, target, client):
"""Something is going wrong with disco"""
error(_("Error when discovering [%(target)s]: %(condition)s") % {'target':target.full(), 'condition':unicode(failure.value)})
message_data={"reason": "connection error", "message":_(u"Error while trying to discover %(target)s gateways: %(error_mess)s") % {'target':target.full(), 'error_mess':unicode(failure.value)}}
self.host.bridge.actionResult("ERROR", request_id, message_data)
def registrationSuccessful(self, target, profile):
"""Called when in_band registration is ok, we must now follow the rest of procedure"""
debug (_("Registration successful, doing the rest"))
self.host.addContact(target, profile)
self.host.setPresence(target, profile)
def gatewayRegister(self, action, target, fields, profile_key='@DEFAULT@'):
"""Register gateway using in-band registration, then log-in to gateway"""
profile = self.host.memory.getProfileName(profile_key)
assert(profile) #FIXME: return an error here
if action == 'SUBMIT':
self.host.plugins["XEP_0077"].addTrigger(target, self.registrationSuccessful, profile)
return self.host.plugins["XEP_0077"].in_band_submit(action, target, fields, profile)
def findGateways(self, target, profile_key='@DEFAULT@'):
"""Find gateways in the target JID, using discovery protocol
Return an id used for retrieving the list of gateways
"""
profile = self.host.memory.getProfileName(profile_key)
client = self.host.getClient(profile_key)
assert(client)
to_jid = jid.JID(target)
debug (_("find gateways (target = %(target)s, profile = %(profile)s)") % {'target':to_jid.full(), 'profile':profile})
request_id = self.host.get_next_id()
client.disco.requestItems(to_jid).addCallback(self.discoItems, request_id=request_id, target = to_jid, client = client).addErrback(self.discoItemsErr, request_id=request_id, target = to_jid, client = client)
return request_id