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annotate src/plugins/plugin_xep_0261.py @ 2128:aa94f33fd2ad

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plugin otr: various improvments: - messageSend trigger now use pre_xml_treatments so it doesn't block other triggers of higher priority - text commands now use a very high priority, as it is local command and should not be blocked in most of cases - new otrState signal, to send state change to frontends - history is not skipped anymore, a future option may change this behaviour - OTR trigger are skipped on groupchat messages - context_manager is now in client instead of being global to plugin - removed fixPotr as it is fixed upstream note triggers should be improved for encryption methods, as skipping an encrypter may break security, but putting it in top priority may break nice features. fix bug 170
author Goffi <goffi@goffi.org>
date Wed, 01 Feb 2017 21:44:24 +0100
parents 2daf7b4c6756
children 1d3f73e065e1
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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) 2009-2016 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.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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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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47
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48 class XEP_0261(object):
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49 NAMESPACE = NS_JINGLE_IBB # used by XEP-0260 plugin for transport-replace
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50
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51 def __init__(self, host):
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52 log.info(_("plugin Jingle In-Band Bytestreams"))
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53 self.host = host
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54 self._j = host.plugins["XEP-0166"] # shortcut to access jingle
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55 self._ibb = host.plugins["XEP-0047"] # and in-band bytestream
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56 self._j.registerTransport(NS_JINGLE_IBB, self._j.TRANSPORT_STREAMING, self, -10000) # must be the lowest priority
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57
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58 def getHandler(self, profile):
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59 return XEP_0261_handler()
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60
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61 def jingleSessionInit(self, session, content_name, profile):
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62 transport_elt = domish.Element((NS_JINGLE_IBB, "transport"))
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63 content_data = session['contents'][content_name]
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64 transport_data = content_data['transport_data']
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65 transport_data['block_size'] = self._ibb.BLOCK_SIZE
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66 transport_elt['block-size'] = unicode(transport_data['block_size'])
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67 transport_elt['sid'] = transport_data['sid'] = unicode(uuid.uuid4())
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68 return transport_elt
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69
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70 def jingleHandler(self, action, session, content_name, transport_elt, profile):
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71 content_data = session['contents'][content_name]
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72 transport_data = content_data['transport_data']
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73 if action in (self._j.A_SESSION_ACCEPT,
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74 self._j.A_ACCEPTED_ACK,
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75 self._j.A_TRANSPORT_ACCEPT):
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76 pass
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77 elif action in (self._j.A_SESSION_INITIATE, self._j.A_TRANSPORT_REPLACE):
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78 transport_data['sid'] = transport_elt['sid']
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79 elif action in (self._j.A_START, self._j.A_PREPARE_RESPONDER):
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80 peer_jid = session['peer_jid']
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81 sid = transport_data['sid']
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82 file_obj = content_data['file_obj']
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83 if action == self._j.A_START:
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84 block_size = transport_data['block_size']
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85 d = self._ibb.startStream(file_obj, peer_jid, sid, block_size, profile)
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86 d.chainDeferred(content_data['finished_d'])
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87 else:
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88 d = self._ibb.createSession(file_obj, peer_jid, sid, profile)
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89 d.chainDeferred(content_data['finished_d'])
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90 else:
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91 log.warning(u"FIXME: unmanaged action {}".format(action))
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92 return transport_elt
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93
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94
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95 class XEP_0261_handler(XMPPHandler):
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96 implements(iwokkel.IDisco)
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97
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98 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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99 return [disco.DiscoFeature(NS_JINGLE_IBB)]
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100
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101 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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102 return []