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annotate src/plugins/plugin_xep_0261.py @ 2444:30278ea1ca7c

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plugin XEP-0060: added node watching methods to bridge: new methods psNodeWatchAdd and psNodeWatchRemove allows to set a watch for the time of the session on one node, to have a signal called when something change on this node. This signal (psEventRaw) send raw data (raw XML), in opposition to psEvent which is there to send high level data (e.g. parsed blog data). Those method are primarely there to let frontends manage local cache for pubsub nodes.
author Goffi <goffi@goffi.org>
date Sun, 19 Nov 2017 16:51:39 +0100
parents 8b37a62336c3
children 0046283a285d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1934
2daf7b4c6756 use of /usr/bin/env instead of /usr/bin/python in shebang
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1 #!/usr/bin/env python2
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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) 2009-2017 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 log = getLogger(__name__)
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24 from wokkel import disco, iwokkel
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25 from zope.interface import implements
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26 from twisted.words.xish import domish
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27 import uuid
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28
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29 try:
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30 from twisted.words.protocols.xmlstream import XMPPHandler
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31 except ImportError:
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32 from wokkel.subprotocols import XMPPHandler
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35 NS_JINGLE_IBB = 'urn:xmpp:jingle:transports:ibb:1'
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36
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37 PLUGIN_INFO = {
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38 C.PI_NAME: "Jingle In-Band Bytestreams",
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39 C.PI_IMPORT_NAME: "XEP-0261",
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40 C.PI_TYPE: "XEP",
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41 C.PI_PROTOCOLS: ["XEP-0261"],
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42 C.PI_DEPENDENCIES: ["XEP-0166", "XEP-0047"],
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43 C.PI_MAIN: "XEP_0261",
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44 C.PI_HANDLER: "yes",
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45 C.PI_DESCRIPTION: _("""Implementation of Jingle In-Band Bytestreams""")
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46 }
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47
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48
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49 class XEP_0261(object):
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50 NAMESPACE = NS_JINGLE_IBB # used by XEP-0260 plugin for transport-replace
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51
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52 def __init__(self, host):
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53 log.info(_("plugin Jingle In-Band Bytestreams"))
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54 self.host = host
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55 self._j = host.plugins["XEP-0166"] # shortcut to access jingle
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56 self._ibb = host.plugins["XEP-0047"] # and in-band bytestream
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57 self._j.registerTransport(NS_JINGLE_IBB, self._j.TRANSPORT_STREAMING, self, -10000) # must be the lowest priority
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58
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59 def getHandler(self, client):
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60 return XEP_0261_handler()
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61
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62 def jingleSessionInit(self, session, content_name, profile):
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63 transport_elt = domish.Element((NS_JINGLE_IBB, "transport"))
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64 content_data = session['contents'][content_name]
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65 transport_data = content_data['transport_data']
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66 transport_data['block_size'] = self._ibb.BLOCK_SIZE
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67 transport_elt['block-size'] = unicode(transport_data['block_size'])
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68 transport_elt['sid'] = transport_data['sid'] = unicode(uuid.uuid4())
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69 return transport_elt
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70
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71 def jingleHandler(self, action, session, content_name, transport_elt, profile):
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72 content_data = session['contents'][content_name]
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73 transport_data = content_data['transport_data']
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74 if action in (self._j.A_SESSION_ACCEPT,
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75 self._j.A_ACCEPTED_ACK,
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76 self._j.A_TRANSPORT_ACCEPT):
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77 pass
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78 elif action in (self._j.A_SESSION_INITIATE, self._j.A_TRANSPORT_REPLACE):
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79 transport_data['sid'] = transport_elt['sid']
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80 elif action in (self._j.A_START, self._j.A_PREPARE_RESPONDER):
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81 peer_jid = session['peer_jid']
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82 sid = transport_data['sid']
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83 file_obj = content_data['file_obj']
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84 if action == self._j.A_START:
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85 block_size = transport_data['block_size']
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86 d = self._ibb.startStream(file_obj, peer_jid, sid, block_size, profile)
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87 d.chainDeferred(content_data['finished_d'])
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88 else:
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89 d = self._ibb.createSession(file_obj, peer_jid, sid, profile)
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90 d.chainDeferred(content_data['finished_d'])
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91 else:
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92 log.warning(u"FIXME: unmanaged action {}".format(action))
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93 return transport_elt
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94
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95
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96 class XEP_0261_handler(XMPPHandler):
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97 implements(iwokkel.IDisco)
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98
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99 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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100 return [disco.DiscoFeature(NS_JINGLE_IBB)]
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101
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102 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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103 return []