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annotate sat/plugins/plugin_xep_0261.py @ 3101:ab7e8ade848a

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plugin XEP-0045: added room statuses to metadata: room statuses are now sent with other metadata on bridge signals, and saved in Room instance. They give useful data on the room, for instance they can be used to know if a full jid is used in this room.
author Goffi <goffi@goffi.org>
date Mon, 30 Dec 2019 20:44:02 +0100
parents ab2696e34d29
children 9d0df638c8b4
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1 #!/usr/bin/env python3
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin for Jingle (XEP-0261)
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5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 from sat.core.i18n import _
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21 from sat.core.constants import Const as C
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22 from sat.core.log import getLogger
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23
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24 log = getLogger(__name__)
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25 from wokkel import disco, iwokkel
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26 from zope.interface import implementer
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27 from twisted.words.xish import domish
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28 import uuid
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29
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30 try:
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31 from twisted.words.protocols.xmlstream import XMPPHandler
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32 except ImportError:
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33 from wokkel.subprotocols import XMPPHandler
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35
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36 NS_JINGLE_IBB = "urn:xmpp:jingle:transports:ibb:1"
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37
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38 PLUGIN_INFO = {
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39 C.PI_NAME: "Jingle In-Band Bytestreams",
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40 C.PI_IMPORT_NAME: "XEP-0261",
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41 C.PI_TYPE: "XEP",
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42 C.PI_MODES: C.PLUG_MODE_BOTH,
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43 C.PI_PROTOCOLS: ["XEP-0261"],
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44 C.PI_DEPENDENCIES: ["XEP-0166", "XEP-0047"],
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45 C.PI_MAIN: "XEP_0261",
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46 C.PI_HANDLER: "yes",
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47 C.PI_DESCRIPTION: _("""Implementation of Jingle In-Band Bytestreams"""),
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48 }
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50
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51 class XEP_0261(object):
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52 NAMESPACE = NS_JINGLE_IBB # used by XEP-0260 plugin for transport-replace
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53
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54 def __init__(self, host):
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55 log.info(_("plugin Jingle In-Band Bytestreams"))
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56 self.host = host
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57 self._j = host.plugins["XEP-0166"] # shortcut to access jingle
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58 self._ibb = host.plugins["XEP-0047"] # and in-band bytestream
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59 self._j.registerTransport(
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60 NS_JINGLE_IBB, self._j.TRANSPORT_STREAMING, self, -10000
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61 ) # must be the lowest priority
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62
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63 def getHandler(self, client):
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64 return XEP_0261_handler()
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65
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66 def jingleSessionInit(self, client, session, content_name):
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67 transport_elt = domish.Element((NS_JINGLE_IBB, "transport"))
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68 content_data = session["contents"][content_name]
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69 transport_data = content_data["transport_data"]
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70 transport_data["block_size"] = self._ibb.BLOCK_SIZE
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71 transport_elt["block-size"] = str(transport_data["block_size"])
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72 transport_elt["sid"] = transport_data["sid"] = str(uuid.uuid4())
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73 return transport_elt
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74
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75 def jingleHandler(self, client, action, session, content_name, transport_elt):
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76 content_data = session["contents"][content_name]
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77 transport_data = content_data["transport_data"]
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78 if action in (
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79 self._j.A_SESSION_ACCEPT,
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80 self._j.A_ACCEPTED_ACK,
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81 self._j.A_TRANSPORT_ACCEPT,
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82 ):
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83 pass
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84 elif action in (self._j.A_SESSION_INITIATE, self._j.A_TRANSPORT_REPLACE):
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85 transport_data["sid"] = transport_elt["sid"]
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86 elif action in (self._j.A_START, self._j.A_PREPARE_RESPONDER):
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87 local_jid = session["local_jid"]
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88 peer_jid = session["peer_jid"]
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89 sid = transport_data["sid"]
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90 stream_object = content_data["stream_object"]
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91 if action == self._j.A_START:
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92 block_size = transport_data["block_size"]
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93 d = self._ibb.startStream(
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94 client, stream_object, local_jid, peer_jid, sid, block_size
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95 )
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96 d.chainDeferred(content_data["finished_d"])
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97 else:
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98 d = self._ibb.createSession(
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99 client, stream_object, local_jid, peer_jid, sid)
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100 d.chainDeferred(content_data["finished_d"])
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101 else:
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102 log.warning("FIXME: unmanaged action {}".format(action))
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103 return transport_elt
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104
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105
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106 @implementer(iwokkel.IDisco)
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107 class XEP_0261_handler(XMPPHandler):
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108
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109 def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
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110 return [disco.DiscoFeature(NS_JINGLE_IBB)]
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111
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112 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
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113 return []