Mercurial > libervia-backend
view src/plugins/plugin_xep_0261.py @ 1618:0de5f210fe56
plugin XEP-0300: implemented hashing:
- parseHashElt do what it says
- calculateHashElt can calculate a whole hash in a non-blocking way
- or getHasher can be used for progressive hashing
- getBestPeerAlgo return the best available hashing algorithm of an entity
author | Goffi <goffi@goffi.org> |
---|---|
date | Tue, 17 Nov 2015 19:48:19 +0100 |
parents | c668081eba1c |
children | 25906c0dbc63 |
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#!/usr/bin/python # -*- coding: utf-8 -*- # SAT plugin for Jingle (XEP-0261) # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero 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 Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. from sat.core.i18n import _ from sat.core.log import getLogger log = getLogger(__name__) from wokkel import disco, iwokkel from zope.interface import implements from twisted.words.xish import domish import uuid try: from twisted.words.protocols.xmlstream import XMPPHandler except ImportError: from wokkel.subprotocols import XMPPHandler NS_JINGLE_IBB = 'urn:xmpp:jingle:transports:ibb:1' PLUGIN_INFO = { "name": "Jingle In-Band Bytestreams", "import_name": "XEP-0261", "type": "XEP", "protocols": ["XEP-0261"], "dependencies": ["XEP-0166", "XEP-0047"], "main": "XEP_0261", "handler": "yes", "description": _("""Implementation of Jingle In-Band Bytestreams""") } class XEP_0261(object): def __init__(self, host): log.info(_("plugin Jingle In-Band Bytestreams")) self.host = host self._j = host.plugins["XEP-0166"] # shortcut to access jingle self._ibb = host.plugins["XEP-0047"] # and in-band bytestream self._j.registerTransport(NS_JINGLE_IBB, self._j.TRANSPORT_STREAMING, self, -10000) # must be the lowest priority def getHandler(self, profile): return XEP_0261_handler() def jingleSessionInit(self, session, content_name, profile): transport_elt = domish.Element((NS_JINGLE_IBB, "transport")) content_data = session['contents'][content_name] transport_data = content_data['transport_data'] transport_data['block_size'] = self._ibb.BLOCK_SIZE transport_elt['block-size'] = unicode(transport_data['block_size']) transport_elt['sid'] = transport_data['sid'] = unicode(uuid.uuid4()) return transport_elt def jingleHandler(self, action, session, content_name, transport_elt, profile): content_data = session['contents'][content_name] transport_data = content_data['transport_data'] if action in (self._j.A_SESSION_ACCEPT, self._j.A_ACCEPTED_ACK): pass elif action == self._j.A_SESSION_INITIATE: transport_data['sid'] = transport_elt['sid'] elif action in (self._j.A_START, self._j.A_PREPARE_RESPONDER): peer_jid = session['peer_jid'] sid = transport_data['sid'] file_obj = content_data['file_obj'] if action == self._j.A_START: block_size = transport_data['block_size'] d = self._ibb.startStream(file_obj, peer_jid, sid, block_size, profile) d.chainDeferred(content_data['finished_d']) else: d = self._ibb.createSession(file_obj, peer_jid, sid, profile) d.chainDeferred(content_data['finished_d']) else: log.warning(u"FIXME: unmanaged action {}".format(action)) return transport_elt class XEP_0261_handler(XMPPHandler): implements(iwokkel.IDisco) def getDiscoInfo(self, requestor, target, nodeIdentifier=''): return [disco.DiscoFeature(NS_JINGLE_IBB)] def getDiscoItems(self, requestor, target, nodeIdentifier=''): return []