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annotate src/plugins/plugin_xep_0261.py @ 2528:65e278997715

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component file sharing: comments metadata: new <comments> element is added to file metadata, it contains the URL to the comments virtual node and the count of comments (this way client knows if it make sense to request comments or not). Fixed triggers in plugin XEP-0264 (return value was missing). New trigger in plugin XEP-0329 to allow component to add metadata (used here for comments url).
author Goffi <goffi@goffi.org>
date Fri, 16 Mar 2018 18:43:11 +0100
parents 67cc54b01a12
children
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rev   line source
1934
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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) 2009-2018 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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33
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34
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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_MODES: C.PLUG_MODE_BOTH,
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42 C.PI_PROTOCOLS: ["XEP-0261"],
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43 C.PI_DEPENDENCIES: ["XEP-0166", "XEP-0047"],
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44 C.PI_MAIN: "XEP_0261",
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45 C.PI_HANDLER: "yes",
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46 C.PI_DESCRIPTION: _("""Implementation of Jingle In-Band Bytestreams""")
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47 }
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48
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49
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50 class XEP_0261(object):
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51 NAMESPACE = NS_JINGLE_IBB # used by XEP-0260 plugin for transport-replace
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52
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53 def __init__(self, host):
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54 log.info(_("plugin Jingle In-Band Bytestreams"))
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55 self.host = host
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56 self._j = host.plugins["XEP-0166"] # shortcut to access jingle
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57 self._ibb = host.plugins["XEP-0047"] # and in-band bytestream
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58 self._j.registerTransport(NS_JINGLE_IBB, self._j.TRANSPORT_STREAMING, self, -10000) # must be the lowest priority
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59
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60 def getHandler(self, client):
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61 return XEP_0261_handler()
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62
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63 def jingleSessionInit(self, client, session, content_name):
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64 transport_elt = domish.Element((NS_JINGLE_IBB, "transport"))
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65 content_data = session['contents'][content_name]
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66 transport_data = content_data['transport_data']
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67 transport_data['block_size'] = self._ibb.BLOCK_SIZE
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68 transport_elt['block-size'] = unicode(transport_data['block_size'])
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69 transport_elt['sid'] = transport_data['sid'] = unicode(uuid.uuid4())
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70 return transport_elt
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71
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72 def jingleHandler(self, client, action, session, content_name, transport_elt):
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73 content_data = session['contents'][content_name]
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74 transport_data = content_data['transport_data']
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75 if action in (self._j.A_SESSION_ACCEPT,
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76 self._j.A_ACCEPTED_ACK,
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77 self._j.A_TRANSPORT_ACCEPT):
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78 pass
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79 elif action in (self._j.A_SESSION_INITIATE, self._j.A_TRANSPORT_REPLACE):
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80 transport_data['sid'] = transport_elt['sid']
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81 elif action in (self._j.A_START, self._j.A_PREPARE_RESPONDER):
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82 peer_jid = session['peer_jid']
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83 sid = transport_data['sid']
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84 stream_object = content_data['stream_object']
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85 if action == self._j.A_START:
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86 block_size = transport_data['block_size']
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87 d = self._ibb.startStream(client, stream_object, peer_jid, sid, block_size)
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88 d.chainDeferred(content_data['finished_d'])
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89 else:
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90 d = self._ibb.createSession(client, stream_object, peer_jid, sid)
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91 d.chainDeferred(content_data['finished_d'])
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92 else:
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93 log.warning(u"FIXME: unmanaged action {}".format(action))
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94 return transport_elt
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95
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96
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97 class XEP_0261_handler(XMPPHandler):
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98 implements(iwokkel.IDisco)
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99
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100 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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101 return [disco.DiscoFeature(NS_JINGLE_IBB)]
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102
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103 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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104 return []