annotate sat/plugins/plugin_xep_0260.py @ 2613:9680cd958529

plugin XEP-0045: fixed crash when muc service is not found
author Goffi <goffi@goffi.org>
date Thu, 21 Jun 2018 01:21:44 +0200
parents 26edcf3a30eb
children 56f94936df1e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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-0260)
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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 sat.core import exceptions
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25 from wokkel import disco, iwokkel
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26 from zope.interface import implements
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27 from twisted.words.xish import domish
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28 from twisted.words.protocols.jabber import jid
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29 from twisted.internet import defer
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30 import uuid
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31
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32 try:
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33 from twisted.words.protocols.xmlstream import XMPPHandler
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34 except ImportError:
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35 from wokkel.subprotocols import XMPPHandler
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36
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37
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38 NS_JINGLE_S5B = 'urn:xmpp:jingle:transports:s5b:1'
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39
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40 PLUGIN_INFO = {
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41 C.PI_NAME: "Jingle SOCKS5 Bytestreams",
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42 C.PI_IMPORT_NAME: "XEP-0260",
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43 C.PI_TYPE: "XEP",
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44 C.PI_MODES: C.PLUG_MODE_BOTH,
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45 C.PI_PROTOCOLS: ["XEP-0260"],
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46 C.PI_DEPENDENCIES: ["XEP-0166", "XEP-0065"],
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47 C.PI_RECOMMENDATIONS: ["XEP-0261"], # needed for fallback
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48 C.PI_MAIN: "XEP_0260",
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49 C.PI_HANDLER: "yes",
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50 C.PI_DESCRIPTION: _("""Implementation of Jingle SOCKS5 Bytestreams""")
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51 }
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52
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53
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54 class ProxyError(Exception):
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55
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56 def __str__(self):
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57 return "an error happened while trying to use the proxy"
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58
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59
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60 class XEP_0260(object):
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61 # TODO: udp handling
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62
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63 def __init__(self, host):
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64 log.info(_("plugin Jingle SOCKS5 Bytestreams"))
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65 self.host = host
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66 self._j = host.plugins["XEP-0166"] # shortcut to access jingle
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67 self._s5b = host.plugins["XEP-0065"] # and socks5 bytestream
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68 try:
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69 self._jingle_ibb = host.plugins["XEP-0261"]
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70 except KeyError:
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71 self._jingle_ibb = None
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72 self._j.registerTransport(NS_JINGLE_S5B, self._j.TRANSPORT_STREAMING, self, 100)
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73
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74 def getHandler(self, client):
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75 return XEP_0260_handler()
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76
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77 def _parseCandidates(self, transport_elt):
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78 """Parse <candidate> elements
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79
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80 @param transport_elt(domish.Element): parent <transport> element
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81 @return (list[plugin_xep_0065.Candidate): list of parsed candidates
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82 """
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83 candidates = []
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84 for candidate_elt in transport_elt.elements(NS_JINGLE_S5B, 'candidate'):
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85 try:
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86 cid = candidate_elt['cid']
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87 host = candidate_elt['host']
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88 jid_= jid.JID(candidate_elt['jid'])
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89 port = int(candidate_elt.getAttribute('port', 1080))
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90 priority = int(candidate_elt['priority'])
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91 type_ = candidate_elt.getAttribute('type', self._s5b.TYPE_DIRECT)
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92 except (KeyError, ValueError):
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93 raise exceptions.DataError()
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94 candidate = self._s5b.Candidate(host, port, type_, priority, jid_, cid)
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95 candidates.append(candidate)
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96 # self._s5b.registerCandidate(candidate)
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97 return candidates
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98
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99 def _buildCandidates(self, session, candidates, sid, session_hash, client, mode=None):
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100 """Build <transport> element with candidates
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101
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102 @param session(dict): jingle session data
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103 @param candidates(iterator[plugin_xep_0065.Candidate]): iterator of candidates to add
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104 @param sid(unicode): transport stream id
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105 @param client: %(doc_client)s
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106 @param mode(str, None): 'tcp' or 'udp', or None to have no attribute
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107 @return (domish.Element): parent <transport> element where <candidate> elements must be added
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108 """
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109 proxy = next((candidate for candidate in candidates if candidate.type == self._s5b.TYPE_PROXY), None)
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110 transport_elt = domish.Element((NS_JINGLE_S5B, "transport"))
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111 transport_elt['sid'] = sid
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112 if proxy is not None:
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113 transport_elt['dstaddr'] = session_hash
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114 if mode is not None:
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115 transport_elt['mode'] = 'tcp' # XXX: we only manage tcp for now
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116
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117 for candidate in candidates:
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118 log.debug(u"Adding candidate: {}".format(candidate))
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119 candidate_elt = transport_elt.addElement('candidate', NS_JINGLE_S5B)
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120 if candidate.id is None:
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121 candidate.id = unicode(uuid.uuid4())
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122 candidate_elt['cid'] = candidate.id
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123 candidate_elt['host'] = candidate.host
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124 candidate_elt['jid'] = candidate.jid.full()
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125 candidate_elt['port'] = unicode(candidate.port)
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126 candidate_elt['priority'] = unicode(candidate.priority)
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127 candidate_elt['type'] = candidate.type
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128 return transport_elt
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129
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130 @defer.inlineCallbacks
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131 def jingleSessionInit(self, client, session, content_name):
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132 content_data = session['contents'][content_name]
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133 transport_data = content_data['transport_data']
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134 sid = transport_data['sid'] = unicode(uuid.uuid4())
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135 session_hash = transport_data['session_hash'] = self._s5b.getSessionHash(client.jid, session['peer_jid'], sid)
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136 transport_data['peer_session_hash'] = self._s5b.getSessionHash(session['peer_jid'], client.jid, sid) # requester and target are inversed for peer candidates
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137 transport_data['stream_d'] = self._s5b.registerHash(client, session_hash, None)
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138 candidates = transport_data['candidates'] = yield self._s5b.getCandidates(client)
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139 mode = 'tcp' # XXX: we only manage tcp for now
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140 transport_elt = self._buildCandidates(session, candidates, sid, session_hash, client, mode)
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141
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142 defer.returnValue(transport_elt)
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143
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144 def _proxyActivatedCb(self, iq_result_elt, client, candidate, session, content_name):
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145 """Called when activation confirmation has been received from proxy
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146
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147 cf XEP-0260 § 2.4
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148 """
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149 # now that the proxy is activated, we have to inform other peer
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150 iq_elt, transport_elt = self._j.buildAction(client, self._j.A_TRANSPORT_INFO, session, content_name)
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151 activated_elt = transport_elt.addElement('activated')
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152 activated_elt['cid'] = candidate.id
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153 iq_elt.send()
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154
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155 def _proxyActivatedEb(self, stanza_error, client, candidate, session, content_name):
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156 """Called when activation error has been received from proxy
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157
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158 cf XEP-0260 § 2.4
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159 """
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160 # TODO: fallback to IBB
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161 # now that the proxy is activated, we have to inform other peer
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162 iq_elt, transport_elt = self._j.buildAction(client, self._j.A_TRANSPORT_INFO, session, content_name)
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163 transport_elt.addElement('proxy-error')
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164 iq_elt.send()
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165 log.warning(u"Can't activate proxy, we need to fallback to IBB: {reason}"
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166 .format(reason = stanza_error.value.condition))
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167 self.doFallback(session, content_name, client)
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168
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169 def _foundPeerCandidate(self, candidate, session, transport_data, content_name, client):
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170 """Called when the best candidate from other peer is found
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171
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172 @param candidate(XEP_0065.Candidate, None): selected candidate,
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173 or None if no candidate is accessible
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174 @param session(dict): session data
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175 @param transport_data(dict): transport data
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176 @param content_name(unicode): name of the current content
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177 @param client(unicode): %(doc_client)s
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178 """
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179
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180 transport_data['best_candidate'] = candidate
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181 # we need to disconnect all non selected candidates before removing them
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182 for c in transport_data['peer_candidates']:
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183 if c is None or c is candidate:
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184 continue
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185 c.discard()
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186 del transport_data['peer_candidates']
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187 iq_elt, transport_elt = self._j.buildAction(client, self._j.A_TRANSPORT_INFO, session, content_name)
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188 if candidate is None:
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189 log.warning(u"Can't connect to any peer candidate")
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190 candidate_elt = transport_elt.addElement('candidate-error')
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191 else:
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192 log.info(u"Found best peer candidate: {}".format(unicode(candidate)))
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193 candidate_elt = transport_elt.addElement('candidate-used')
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194 candidate_elt['cid'] = candidate.id
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195 iq_elt.send() # TODO: check result stanza
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196 self._checkCandidates(session, content_name, transport_data, client)
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197
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198 def _checkCandidates(self, session, content_name, transport_data, client):
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199 """Called when a candidate has been choosed
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200
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201 if we have both candidates, we select one, or fallback to an other transport
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202 @param session(dict): session data
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203 @param content_name(unicode): name of the current content
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204 @param transport_data(dict): transport data
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205 @param client(unicode): %(doc_client)s
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206 """
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207 content_data = session['contents'][content_name]
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208 try:
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209 best_candidate = transport_data['best_candidate']
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210 except KeyError:
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211 # we have not our best candidate yet
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212 return
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213 try:
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214 peer_best_candidate = transport_data['peer_best_candidate']
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215 except KeyError:
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216 # we have not peer best candidate yet
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217 return
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218
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219 # at this point we have both candidates, it's time to choose one
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220 if best_candidate is None or peer_best_candidate is None:
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221 choosed_candidate = best_candidate or peer_best_candidate
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222 else:
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223 if best_candidate.priority == peer_best_candidate.priority:
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224 # same priority, we choose initiator one according to XEP-0260 §2.4 #4
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225 log.debug(u"Candidates have same priority, we select the one choosed by initiator")
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226 if session['initiator'] == client.jid:
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227 choosed_candidate = best_candidate
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228 else:
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229 choosed_candidate = peer_best_candidate
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230 else:
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231 choosed_candidate = max(best_candidate, peer_best_candidate, key=lambda c:c.priority)
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232
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233 if choosed_candidate is None:
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234 log.warning(u"Socks5 negociation failed, we need to fallback to IBB")
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235 self.doFallback(session, content_name, client)
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236 else:
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237 if choosed_candidate == peer_best_candidate:
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238 # peer_best_candidate was choosed from the candidates we have sent
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239 # so our_candidate is true if choosed_candidate is peer_best_candidate
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240 our_candidate = True
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241 # than also mean that best_candidate must be discarded !
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242 try:
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243 best_candidate.discard()
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244 except AttributeError: # but it can be None
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245 pass
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246 else:
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247 our_candidate = False
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248
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249 log.info(u"Socks5 negociation successful, {who} candidate will be used: {candidate}".format(
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250 who = u'our' if our_candidate else u'other peer',
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251 candidate = choosed_candidate))
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252 del transport_data['best_candidate']
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253 del transport_data['peer_best_candidate']
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254
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255 if choosed_candidate.type == self._s5b.TYPE_PROXY:
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256 # the stream transfer need to wait for proxy activation
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257 # (see XEP-0260 § 2.4)
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258 if our_candidate:
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259 d = self._s5b.connectCandidate(client, choosed_candidate, transport_data['session_hash'])
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260 d.addCallback(lambda dummy: choosed_candidate.activate(transport_data['sid'], session['peer_jid'], client))
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261 args = [client, choosed_candidate, session, content_name]
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262 d.addCallbacks(self._proxyActivatedCb, self._proxyActivatedEb, args, None, args)
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diff changeset
263 else:
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264 # this Deferred will be called when we'll receive activation confirmation from other peer
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diff changeset
265 d = transport_data['activation_d'] = defer.Deferred()
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diff changeset
266 else:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
267 d = defer.succeed(None)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
268
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parents:
diff changeset
269 if content_data['senders'] == session['role']:
2489
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270 # we can now start the stream transfer (or start it after proxy activation)
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37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
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parents: 1567
diff changeset
271 d.addCallback(lambda dummy: choosed_candidate.startTransfer(transport_data['session_hash']))
1756
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
272 d.addErrback(self._startEb, session, content_name, client)
061011fad5b1 plugin XEP-0260: better proxy error handling:
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parents: 1755
diff changeset
273
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
274 def _startEb(self, fail, session, content_name, client):
061011fad5b1 plugin XEP-0260: better proxy error handling:
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parents: 1755
diff changeset
275 """Called when it's not possible to start the transfer
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
276
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
277 Will try to fallback to IBB
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
278 """
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
279 try:
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
280 reason = unicode(fail.value)
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
281 except AttributeError:
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
282 reason = unicode(fail)
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
283 log.warning(u"Cant start transfert, we'll try fallback method: {}".format(reason))
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
284 self.doFallback(session, content_name, client)
1570
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parents: 1567
diff changeset
285
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
286 def _candidateInfo(self, candidate_elt, session, content_name, transport_data, client):
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
287 """Called when best candidate has been received from peer (or if none is working)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
288
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
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parents: 1567
diff changeset
289 @param candidate_elt(domish.Element): candidate-used or candidate-error element
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
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parents: 1567
diff changeset
290 (see XEP-0260 §2.3)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
291 @param session(dict): session data
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
292 @param content_name(unicode): name of the current content
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
293 @param transport_data(dict): transport data
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
294 @param client(unicode): %(doc_client)s
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
295 """
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
296 if candidate_elt.name == 'candidate-error':
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
297 # candidate-error, no candidate worked
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
298 transport_data['peer_best_candidate'] = None
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
299 else:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
300 # candidate-used, one candidate was choosed
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
301 try:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
302 cid = candidate_elt.attributes['cid']
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
303 except KeyError:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
304 log.warning(u"No cid found in <candidate-used>")
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
305 raise exceptions.DataError
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
306 try:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
307 candidate = (c for c in transport_data['candidates'] if c.id == cid).next()
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
308 except StopIteration:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
309 log.warning(u"Given cid doesn't correspond to any known candidate !")
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
310 raise exceptions.DataError # TODO: send an error to other peer, and use better exception
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
311 except KeyError:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
312 # a transport-info can also be intentionaly sent too early by other peer
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
313 # but there is little probability
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
314 log.error(u'"candidates" key doesn\'t exists in transport_data, it should at this point')
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
315 raise exceptions.InternalError
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
316 # at this point we have the candidate choosed by other peer
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
317 transport_data['peer_best_candidate'] = candidate
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
318 log.info(u"Other peer best candidate: {}".format(candidate))
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
319
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
320 del transport_data['candidates']
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
321 self._checkCandidates(session, content_name, transport_data, client)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
322
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
323 def _proxyActivationInfo(self, proxy_elt, session, content_name, transport_data, client):
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
324 """Called when proxy has been activated (or has sent an error)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
325
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
326 @param proxy_elt(domish.Element): <activated/> or <proxy-error/> element
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
327 (see XEP-0260 §2.4)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
328 @param session(dict): session data
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
329 @param content_name(unicode): name of the current content
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
330 @param transport_data(dict): transport data
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
331 @param client(unicode): %(doc_client)s
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
332 """
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
333 try:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
334 activation_d = transport_data.pop('activation_d')
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
335 except KeyError:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
336 log.warning(u"Received unexpected transport-info for proxy activation")
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
337
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
338 if proxy_elt.name == 'activated':
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
339 activation_d.callback(None)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
340 else:
1756
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
341 activation_d.errback(ProxyError())
1560
dcce63810733 plugin XEP-0260: first draft
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parents:
diff changeset
342
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
343 @defer.inlineCallbacks
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
344 def jingleHandler(self, client, action, session, content_name, transport_elt):
1560
dcce63810733 plugin XEP-0260: first draft
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parents:
diff changeset
345 content_data = session['contents'][content_name]
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
346 transport_data = content_data['transport_data']
dcce63810733 plugin XEP-0260: first draft
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parents:
diff changeset
347
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
348 if action in (self._j.A_ACCEPTED_ACK, self._j.A_PREPARE_RESPONDER):
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
349 pass
dcce63810733 plugin XEP-0260: first draft
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parents:
diff changeset
350
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
351 elif action == self._j.A_SESSION_ACCEPT:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
352 # initiator side, we select a candidate in the ones sent by responder
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
353 assert 'peer_candidates' not in transport_data
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
354 transport_data['peer_candidates'] = self._parseCandidates(transport_elt)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
355
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
356 elif action == self._j.A_START:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
357 session_hash = transport_data['session_hash']
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
358 peer_candidates = transport_data['peer_candidates']
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
359 stream_object = content_data['stream_object']
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
360 self._s5b.associateStreamObject(client, session_hash, stream_object)
1757
abd6d6f89006 plugins XEP-0065, XEP-0260: fixed session creation order: session is created earlied, and file object associated in a second time if needed
Goffi <goffi@goffi.org>
parents: 1756
diff changeset
361 stream_d = transport_data.pop('stream_d')
1571
c668081eba1c plugins XEP-0234, XEP-0260, XEP-0261: jingle session termination is managed by application (XEP-0234) instead of transport
Goffi <goffi@goffi.org>
parents: 1570
diff changeset
362 stream_d.chainDeferred(content_data['finished_d'])
1758
a66d34353f34 plugin XEP-0260, XEP-0065: fixed session hash handling:
Goffi <goffi@goffi.org>
parents: 1757
diff changeset
363 peer_session_hash = transport_data['peer_session_hash']
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
364 d = self._s5b.getBestCandidate(client, peer_candidates, session_hash, peer_session_hash)
1560
dcce63810733 plugin XEP-0260: first draft
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parents:
diff changeset
365 d.addCallback(self._foundPeerCandidate, session, transport_data, content_name, client)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
366
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
367 elif action == self._j.A_SESSION_INITIATE:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
368 # responder side, we select a candidate in the ones sent by initiator
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
369 # and we give our candidates
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
370 assert 'peer_candidates' not in transport_data
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
371 sid = transport_data['sid'] = transport_elt['sid']
1758
a66d34353f34 plugin XEP-0260, XEP-0065: fixed session hash handling:
Goffi <goffi@goffi.org>
parents: 1757
diff changeset
372 session_hash = transport_data['session_hash'] = self._s5b.getSessionHash(client.jid, session['peer_jid'], sid)
a66d34353f34 plugin XEP-0260, XEP-0065: fixed session hash handling:
Goffi <goffi@goffi.org>
parents: 1757
diff changeset
373 peer_session_hash = transport_data['peer_session_hash'] = self._s5b.getSessionHash(session['peer_jid'], client.jid, sid) # requester and target are inversed for peer candidates
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
374 peer_candidates = transport_data['peer_candidates'] = self._parseCandidates(transport_elt)
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
375 stream_object = content_data['stream_object']
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
376 stream_d = self._s5b.registerHash(client, session_hash, stream_object)
1571
c668081eba1c plugins XEP-0234, XEP-0260, XEP-0261: jingle session termination is managed by application (XEP-0234) instead of transport
Goffi <goffi@goffi.org>
parents: 1570
diff changeset
377 stream_d.chainDeferred(content_data['finished_d'])
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
378 d = self._s5b.getBestCandidate(client, peer_candidates, session_hash, peer_session_hash)
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
379 d.addCallback(self._foundPeerCandidate, session, transport_data, content_name, client)
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
380 candidates = yield self._s5b.getCandidates(client)
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
381 # we remove duplicate candidates
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
382 candidates = [candidate for candidate in candidates if candidate not in peer_candidates]
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
383
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
384 transport_data['candidates'] = candidates
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
385 # we can now build a new <transport> element with our candidates
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
386 transport_elt = self._buildCandidates(session, candidates, sid, session_hash, client)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
387
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
388 elif action == self._j.A_TRANSPORT_INFO:
1570
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
389 # transport-info can be about candidate or proxy activation
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
390 candidate_elt = None
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
391
1570
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
392 for method, names in ((self._candidateInfo, ('candidate-used', 'candidate-error')),
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
393 (self._proxyActivationInfo, ('activated', 'proxy-error'))):
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
394 for name in names:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
395 try:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
396 candidate_elt = transport_elt.elements(NS_JINGLE_S5B, name).next()
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
397 except StopIteration:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
398 continue
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
399 else:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
400 method(candidate_elt, session, content_name, transport_data, client)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
401 break
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
402
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
403 if candidate_elt is None:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
404 log.warning(u"Unexpected transport element: {}".format(transport_elt.toXml()))
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
405 elif action == self._j.A_DESTROY:
1758
a66d34353f34 plugin XEP-0260, XEP-0065: fixed session hash handling:
Goffi <goffi@goffi.org>
parents: 1757
diff changeset
406 # the transport is replaced (fallback ?), We need mainly to kill XEP-0065 session.
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
407 # note that sid argument is not necessary for sessions created by this plugin
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
408 self._s5b.killSession(None, transport_data['session_hash'], None, client)
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
409 else:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
410 log.warning(u"FIXME: unmanaged action {}".format(action))
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
411
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
412 defer.returnValue(transport_elt)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
413
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
414 def jingleTerminate(self, client, action, session, content_name, reason_elt):
1755
d2e023da2983 plugin XEP-0260: kill s5b session if session is declined
Goffi <goffi@goffi.org>
parents: 1631
diff changeset
415 if reason_elt.decline:
d2e023da2983 plugin XEP-0260: kill s5b session if session is declined
Goffi <goffi@goffi.org>
parents: 1631
diff changeset
416 log.debug(u"Session declined, deleting S5B session")
d2e023da2983 plugin XEP-0260: kill s5b session if session is declined
Goffi <goffi@goffi.org>
parents: 1631
diff changeset
417 # we just need to clean the S5B session if it is declined
d2e023da2983 plugin XEP-0260: kill s5b session if session is declined
Goffi <goffi@goffi.org>
parents: 1631
diff changeset
418 content_data = session['contents'][content_name]
d2e023da2983 plugin XEP-0260: kill s5b session if session is declined
Goffi <goffi@goffi.org>
parents: 1631
diff changeset
419 transport_data = content_data['transport_data']
d2e023da2983 plugin XEP-0260: kill s5b session if session is declined
Goffi <goffi@goffi.org>
parents: 1631
diff changeset
420 self._s5b.killSession(None, transport_data['session_hash'], None, client)
d2e023da2983 plugin XEP-0260: kill s5b session if session is declined
Goffi <goffi@goffi.org>
parents: 1631
diff changeset
421
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
422 def _doFallback(self, feature_checked, session, content_name, client):
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
423 """Do the fallback, method called once feature is checked
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
424
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
425 @param feature_checked(bool): True if other peer can do IBB
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
426 """
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
427 if not feature_checked:
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
428 log.warning(u"Other peer can't manage jingle IBB, be have to terminate the session")
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
429 self._j.terminate(client, self._j.REASON_CONNECTIVITY_ERROR, session)
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
430 else:
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
431 self._j.transportReplace(client, self._jingle_ibb.NAMESPACE, session, content_name)
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
432
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
433 def doFallback(self, session, content_name, client):
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
434 """Fallback to IBB transport, used in last resort
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
435
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
436 @param session(dict): session data
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
437 @param content_name(unicode): name of the current content
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
438 @param client(unicode): %(doc_client)s
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
439 """
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
440 if session['role'] != self._j.ROLE_INITIATOR:
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
441 # only initiator must do the fallback, see XEP-0260 §3
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
442 return
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
443 if self._jingle_ibb is None:
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
444 log.warning(u"Jingle IBB (XEP-0261) plugin is not available, we have to close the session")
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
445 self._j.terminate(client, self._j.REASON_CONNECTIVITY_ERROR, session)
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
446 else:
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2145
diff changeset
447 d = self.host.hasFeature(client, self._jingle_ibb.NAMESPACE, session['peer_jid'])
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
448 d.addCallback(self._doFallback, session, content_name, client)
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
449 return d
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
450
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
451
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
452 class XEP_0260_handler(XMPPHandler):
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
453 implements(iwokkel.IDisco)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
454
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
455 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
456 return [disco.DiscoFeature(NS_JINGLE_S5B)]
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
457
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
458 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
459 return []