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annotate src/plugins/plugin_xep_0261.py @ 1547:0632d96f08ad

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plugin XEP-0085: fixed bad use of threads resulting in delay and crash when stopping the backend.
author Goffi <goffi@goffi.org>
date Mon, 02 Nov 2015 22:02:41 +0100
parents bfef1934a8f3
children cbfbe028d099
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1527
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
Goffi <goffi@goffi.org>
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1 #!/usr/bin/python
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
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2 # -*- coding: utf-8 -*-
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3
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
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4 # SAT plugin for Jingle (XEP-0261)
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
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5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 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
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
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8 # it under the terms of the GNU Affero General Public License as published by
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
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9 # the Free Software Foundation, either version 3 of the License, or
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
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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,
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
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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
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
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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
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
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20 from sat.core.i18n import _
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21 from sat.core.log import getLogger
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22 log = getLogger(__name__)
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23 from wokkel import disco, iwokkel
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24 from zope.interface import implements
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25 from twisted.words.xish import domish
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26 import uuid
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27
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28 try:
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29 from twisted.words.protocols.xmlstream import XMPPHandler
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30 except ImportError:
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31 from wokkel.subprotocols import XMPPHandler
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32
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33
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34 NS_JINGLE_IBB = 'urn:xmpp:jingle:transports:ibb:1'
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35
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36 PLUGIN_INFO = {
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37 "name": "Jingle In-Band Bytestreams",
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38 "import_name": "XEP-0261",
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39 "type": "XEP",
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40 "protocols": ["XEP-0261"],
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41 "dependencies": ["XEP-0166", "XEP-0047"],
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42 "main": "XEP_0261",
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43 "handler": "yes",
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44 "description": _("""Implementation of Jingle In-Band Bytestreams""")
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45 }
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46
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47
bfef1934a8f3 plugin XEP-0261: jingle in-band bystream first draft
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48 class XEP_0261(object):
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49
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50 def __init__(self, host):
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51 log.info(_("plugin Jingle In-Band Bytestreams"))
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52 self.host = host
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53 self._j = host.plugins["XEP-0166"] # shortcut to access jingle
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54 self._ibb = host.plugins["XEP-0047"] # and in-band bytestream
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55 self._j.registerTransport(NS_JINGLE_IBB, self._j.TRANSPORT_STREAMING, self, -10000) # must be the lowest priority
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56
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57 def getHandler(self, profile):
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58 return XEP_0261_handler()
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59
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60 def jingleSessionInit(self, session, content_name, profile):
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61 transport_elt = domish.Element((NS_JINGLE_IBB, "transport"))
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62 content_data = session['contents'][content_name]
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63 content_data['ibb_block_size'] = self._ibb.BLOCK_SIZE
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64 transport_elt['block-size'] = unicode(content_data['ibb_block_size'])
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65 transport_elt['sid'] = content_data['ibb_sid'] = unicode(uuid.uuid4())
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66 return transport_elt
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67
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68 def jingleHandler(self, action, session, content_name, transport_elt, profile):
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69 content_data = session['contents'][content_name]
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70 if action in (self._j.A_SESSION_ACCEPT, self._j.A_ACCEPTED_ACK):
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71 pass
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72 elif action == self._j.A_SESSION_INITIATE:
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73 content_data['ibb_sid'] = transport_elt['sid']
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74 elif action in (self._j.A_START, self._j.A_PREPARE_RESPONDER):
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75 to_jid = session['to_jid']
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76 sid = content_data['ibb_sid']
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77 file_obj = content_data['file_obj']
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78 args = [session, content_name, profile]
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79 if action == self._j.A_START:
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80 block_size = content_data['ibb_block_size']
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81 d = self._ibb.startStream(file_obj, to_jid, sid, block_size, profile)
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82 d.addErrback(self._streamEb, *args)
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83 else:
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84 d = self._ibb.createSession(file_obj, to_jid, sid, profile)
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85 d.addCallbacks(self._streamCb, self._streamEb, args, None, args)
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86 else:
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87 log.warning(u"FIXME: unmanaged action {}".format(action))
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88 return transport_elt
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89
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90 def _streamCb(self, dummy, session, content_name, profile):
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91 self._j.contentTerminate(session, content_name, profile=profile)
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92
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93 def _streamEb(self, failure, session, content_name, profile):
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94 log.warning(u"Error while streaming in-band: {}".format(failure))
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95 self._j.contentTerminate(session, content_name, reason=self._j.REASON_FAILED_TRANSPORT, profile=profile)
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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 []