annotate src/plugins/plugin_xep_0260.py @ 1629:a34d7f621944

plugin XEP-0065: renamed _killSession to killSession as it make sense to kill a session from an other plugin
author Goffi <goffi@goffi.org>
date Thu, 19 Nov 2015 18:15:35 +0100
parents c668081eba1c
children 25906c0dbc63
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/python
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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, 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
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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 sat.core import exceptions
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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 from twisted.words.protocols.jabber import jid
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28 from twisted.internet import defer
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29 import uuid
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30
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31 try:
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32 from twisted.words.protocols.xmlstream import XMPPHandler
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33 except ImportError:
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34 from wokkel.subprotocols import XMPPHandler
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35
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36
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37 NS_JINGLE_S5B = 'urn:xmpp:jingle:transports:s5b:1'
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38
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39 PLUGIN_INFO = {
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40 "name": "Jingle SOCKS5 Bytestreams",
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41 "import_name": "XEP-0260",
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42 "type": "XEP",
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43 "protocols": ["XEP-0260"],
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44 "dependencies": ["XEP-0166", "XEP-0065"],
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45 "main": "XEP_0260",
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46 "handler": "yes",
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47 "description": _("""Implementation of Jingle SOCKS5 Bytestreams""")
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48 }
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49
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50
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51 class ProxyError(Exception):
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52 pass
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53
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54
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55 class XEP_0260(object):
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56 # TODO: udp handling
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57
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58 def __init__(self, host):
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59 log.info(_("plugin Jingle SOCKS5 Bytestreams"))
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60 self.host = host
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61 self._j = host.plugins["XEP-0166"] # shortcut to access jingle
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62 self._s5b = host.plugins["XEP-0065"] # and socks5 bytestream
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63 self._j.registerTransport(NS_JINGLE_S5B, self._j.TRANSPORT_STREAMING, self, 100)
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64
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65 def getHandler(self, profile):
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66 return XEP_0260_handler()
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67
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68 def _parseCandidates(self, transport_elt):
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69 """Parse <candidate> elements
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70
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71 @param transport_elt(domish.Element): parent <transport> element
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72 @return (list[plugin_xep_0065.Candidate): list of parsed candidates
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73 """
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74 candidates = []
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75 for candidate_elt in transport_elt.elements(NS_JINGLE_S5B, 'candidate'):
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76 try:
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77 cid = candidate_elt['cid']
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78 host = candidate_elt['host']
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79 jid_= jid.JID(candidate_elt['jid'])
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80 port = int(candidate_elt.getAttribute('port', 1080))
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81 priority = int(candidate_elt['priority'])
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82 type_ = candidate_elt.getAttribute('type', self._s5b.TYPE_DIRECT)
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83 except (KeyError, ValueError):
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84 raise exceptions.DataError()
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85 candidate = self._s5b.Candidate(host, port, type_, priority, jid_, cid)
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86 candidates.append(candidate)
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87 # self._s5b.registerCandidate(candidate)
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88 return candidates
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89
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90 def _buildCandidates(self, session, candidates, sid, session_hash, client, mode=None):
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91 """Build <transport> element with candidates
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92
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93 @param session(dict): jingle session data
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94 @param candidates(iterator[plugin_xep_0065.Candidate]): iterator of candidates to add
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95 @param sid(unicode): transport stream id
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96 @param client: %(doc_client)s
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97 @param mode(str, None): 'tcp' or 'udp', or None to have no attribute
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98 @return (domish.Element): parent <transport> element where <candidate> elements must be added
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99 """
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100 proxy = next((candidate for candidate in candidates if candidate.type == self._s5b.TYPE_PROXY), None)
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101 transport_elt = domish.Element((NS_JINGLE_S5B, "transport"))
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102 transport_elt['sid'] = sid
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103 if proxy is not None:
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104 transport_elt['dstaddr'] = session_hash
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105 if mode is not None:
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106 transport_elt['mode'] = 'tcp' # XXX: we only manage tcp for now
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107
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108 for candidate in candidates:
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109 log.debug(u"Adding candidate: {}".format(candidate))
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110 candidate_elt = transport_elt.addElement('candidate', NS_JINGLE_S5B)
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111 if candidate.id is None:
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112 candidate.id = unicode(uuid.uuid4())
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113 candidate_elt['cid'] = candidate.id
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114 candidate_elt['host'] = candidate.host
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115 candidate_elt['jid'] = candidate.jid.full()
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116 candidate_elt['port'] = unicode(candidate.port)
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117 candidate_elt['priority'] = unicode(candidate.priority)
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118 candidate_elt['type'] = candidate.type
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119 return transport_elt
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120
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121 @defer.inlineCallbacks
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122 def jingleSessionInit(self, session, content_name, profile):
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123 client = self.host.getClient(profile)
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124 content_data = session['contents'][content_name]
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125 transport_data = content_data['transport_data']
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126 sid = transport_data['sid'] = unicode(uuid.uuid4())
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127 session_hash = transport_data['session_hash'] = self._s5b.getSessionHash(client.jid, session['peer_jid'], sid)
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128 candidates = transport_data['candidates'] = yield self._s5b.getCandidates(profile)
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129 mode = 'tcp' # XXX: we only manage tcp for now
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130 transport_elt = self._buildCandidates(session, candidates, sid, session_hash, client, mode)
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131
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132 defer.returnValue(transport_elt)
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133
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134 def _proxyActivatedCb(self, iq_result_elt, candidate, session, content_name, profile):
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135 """Called when activation confirmation has been received from proxy
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136
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137 cf XEP-0260 § 2.4
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138 """
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139 # now that the proxy is activated, we have to inform other peer
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140 iq_elt, transport_elt = self._j.buildAction(self._j.A_TRANSPORT_INFO, session, content_name, profile)
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141 activated_elt = transport_elt.addElement('activated')
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142 activated_elt['cid'] = candidate.id
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143 iq_elt.send
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144
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145 def _proxyActivatedEb(self, stanza_error, candidate, session, content_name, profile):
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146 """Called when activation error has been received from proxy
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147
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148 cf XEP-0260 § 2.4
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149 """
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150 # TODO: fallback to IBB
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151 # now that the proxy is activated, we have to inform other peer
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152 iq_elt, transport_elt = self._j.buildAction(self._j.A_TRANSPORT_INFO, session, content_name, profile)
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153 transport_elt.addElement('proxy-error')
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154 iq_elt.send
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155 return stanza_error
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156
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157 def _foundPeerCandidate(self, candidate, session, transport_data, content_name, client):
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158 """Called when the best candidate from other peer is found
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159
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160 @param candidate(XEP_0065.Candidate, None): selected candidate,
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161 or None if no candidate is accessible
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162 @param session(dict): session data
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163 @param transport_data(dict): transport data
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164 @param content_name(unicode): name of the current content
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165 @param client(unicode): %(doc_client)s
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166 """
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167
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168 transport_data['best_candidate'] = candidate
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169 # we need to disconnect all non selected candidates before removing them
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170 for c in transport_data['peer_candidates']:
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171 if c is None or c is candidate:
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172 continue
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173 c.discard()
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174 del transport_data['peer_candidates']
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175 iq_elt, transport_elt = self._j.buildAction(self._j.A_TRANSPORT_INFO, session, content_name, client.profile)
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176 if candidate is None:
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177 log.warning(u"Can't connect to any peer candidate")
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178 candidate_elt = transport_elt.addElement('candidate-error')
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179 else:
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180 log.info(u"Found best peer candidate: {}".format(unicode(candidate)))
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181 candidate_elt = transport_elt.addElement('candidate-used')
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182 candidate_elt['cid'] = candidate.id
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183 iq_elt.send() # TODO: check result stanza
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184 self._checkCandidates(session, content_name, transport_data, client)
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185
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186 def _checkCandidates(self, session, content_name, transport_data, client):
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187 """Called when a candidate has been choosed
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188
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189 if we have both candidates, we select one, or fallback to an other transport
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190 @param session(dict): session data
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191 @param content_name(unicode): name of the current content
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192 @param transport_data(dict): transport data
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193 @param client(unicode): %(doc_client)s
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194 """
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195 content_data = session['contents'][content_name]
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196 try:
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197 best_candidate = transport_data['best_candidate']
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198 except KeyError:
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199 # we have not our best candidate yet
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200 return
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201 try:
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202 peer_best_candidate = transport_data['peer_best_candidate']
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203 except KeyError:
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204 # we have not peer best candidate yet
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205 return
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206
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207 # at this point we have both candidates, it's time to choose one
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208 if best_candidate is None or peer_best_candidate is None:
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209 choosed_candidate = best_candidate or peer_best_candidate
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210 else:
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211 if best_candidate.priority == peer_best_candidate.priority:
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212 # same priority, we choose initiator one according to XEP-0260 §2.4 #4
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213 log.debug(u"Candidates have same priority, we choose the initiator one")
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214 if session['initiator'] == client.jid:
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215 choosed_candidate = best_candidate
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216 else:
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217 choosed_candidate = peer_best_candidate
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218 else:
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219 choosed_candidate = max(best_candidate, peer_best_candidate, key=lambda c:c.priority)
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220
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221 if choosed_candidate is None:
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222 log.warning(u"Socks5 negociation failed, we need to fallback to IBB")
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223 else:
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224 if choosed_candidate == peer_best_candidate:
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225 # peer_best_candidate was choosed from the candidates we have sent
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226 # so our_candidate is true if choosed_candidate is peer_best_candidate
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227 our_candidate = True
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228 # than also mean that best_candidate must be discarded !
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229 try:
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230 best_candidate.discard()
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231 except AttributeError: # but it can be None
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232 pass
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233 else:
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234 our_candidate = False
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235
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236 log.info(u"Socks5 negociation successful, {who} candidate will be used: {candidate}".format(
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237 who = u'our' if our_candidate else u'other peer',
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238 candidate = choosed_candidate))
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239 del transport_data['best_candidate']
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240 del transport_data['peer_best_candidate']
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241
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242 if choosed_candidate.type == self._s5b.TYPE_PROXY:
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243 # the file transfer need to wait for proxy activation
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244 # (see XEP-0260 § 2.4)
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245 if our_candidate:
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246 d = self._s5b.connectCandidate(choosed_candidate, transport_data['session_hash'], profile=client.profile)
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247 d.addCallback(lambda dummy: choosed_candidate.activate(transport_data['sid'], session['peer_jid'], client))
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248 args = [choosed_candidate, session, content_name, client.profile]
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249 d.addCallbacks(self._proxyActivatedCb, self._proxyActivatedEb, args, None, args)
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250 else:
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251 # this Deferred will be called when we'll receive activation confirmation from other peer
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252 d = transport_data['activation_d'] = defer.Deferred()
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253 else:
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254 d = defer.succeed(None)
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255
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256 if content_data['senders'] == session['role']:
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257 # we can now start the file transfer (or start it after proxy activation)
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258 d.addCallback(lambda dummy: choosed_candidate.startTransfer(transport_data['session_hash']))
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259
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260 def _candidateInfo(self, candidate_elt, session, content_name, transport_data, client):
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261 """Called when best candidate has been received from peer (or if none is working)
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262
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263 @param candidate_elt(domish.Element): candidate-used or candidate-error element
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264 (see XEP-0260 §2.3)
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265 @param session(dict): session data
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266 @param content_name(unicode): name of the current content
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267 @param transport_data(dict): transport data
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268 @param client(unicode): %(doc_client)s
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269 """
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270 if candidate_elt.name == 'candidate-error':
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271 # candidate-error, no candidate worked
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272 transport_data['peer_best_candidate'] = None
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273 else:
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diff changeset
274 # candidate-used, one candidate was choosed
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
275 try:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
276 cid = candidate_elt.attributes['cid']
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
277 except KeyError:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
278 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
279 raise exceptions.DataError
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
280 try:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
281 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
282 except StopIteration:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
283 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
284 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
285 except KeyError:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
286 # 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
287 # but there is little probability
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
288 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
289 raise exceptions.InternalError
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
290 # 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
291 transport_data['peer_best_candidate'] = candidate
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
292 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
293
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
294 del transport_data['candidates']
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
295 self._checkCandidates(session, content_name, transport_data, client)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
296
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
297 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
298 """Called when proxy has been activated (or has sent an error)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
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parents: 1567
diff changeset
299
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diff changeset
300 @param proxy_elt(domish.Element): <activated/> or <proxy-error/> element
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
301 (see XEP-0260 §2.4)
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diff changeset
302 @param session(dict): session data
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diff changeset
303 @param content_name(unicode): name of the current content
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parents: 1567
diff changeset
304 @param transport_data(dict): transport data
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
305 @param client(unicode): %(doc_client)s
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
306 """
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
307 try:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
308 activation_d = transport_data.pop('activation_d')
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
309 except KeyError:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
310 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
311
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
312 if proxy_elt.name == 'activated':
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
313 activation_d.callback(None)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
314 else:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
315 activation_d.errback(ProxyError)
1560
dcce63810733 plugin XEP-0260: first draft
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parents:
diff changeset
316
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
317 @defer.inlineCallbacks
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
318 def jingleHandler(self, action, session, content_name, transport_elt, profile):
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
319 client = self.host.getClient(profile)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
320 content_data = session['contents'][content_name]
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
321 transport_data = content_data['transport_data']
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
322
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
323 if action in (self._j.A_ACCEPTED_ACK,):
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
324 pass
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
325
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
326 elif action == self._j.A_SESSION_ACCEPT:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
327 # 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
328 assert 'peer_candidates' not in transport_data
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
329 transport_data['peer_candidates'] = self._parseCandidates(transport_elt)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
330
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
331 # elif action == self._j.A_START:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
332 elif action == self._j.A_START:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
333 session_hash = transport_data['session_hash']
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
334 peer_candidates = transport_data['peer_candidates']
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
335 file_obj = content_data['file_obj']
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
336 stream_d = self._s5b.registerHash(session_hash, file_obj, profile)
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
337 stream_d.chainDeferred(content_data['finished_d'])
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
338 d = self._s5b.getBestCandidate(peer_candidates, session_hash, profile)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
339 d.addCallback(self._foundPeerCandidate, session, transport_data, content_name, client)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
340
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
341 elif action == self._j.A_SESSION_INITIATE:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
342 # 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
343 # and we give our candidates
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
344 assert 'peer_candidates' not in transport_data
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
345 sid = transport_data['sid'] = transport_elt['sid']
1567
268fda4236ca plugins XE0166, XEP-0234, XEP-0260, XEP-0261: renamed session key managing other peer's jid to "peer_jid" instead of "to_jid"
Goffi <goffi@goffi.org>
parents: 1560
diff changeset
346 session_hash = transport_data['session_hash'] = self._s5b.getSessionHash(session['peer_jid'], client.jid, sid)
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
347 peer_candidates = transport_data['peer_candidates'] = self._parseCandidates(transport_elt)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
348 file_obj = content_data['file_obj']
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
349 stream_d = self._s5b.registerHash(session_hash, file_obj, profile)
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
350 stream_d.chainDeferred(content_data['finished_d'])
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
351 d = self._s5b.getBestCandidate(peer_candidates, session_hash, profile)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
352 d.addCallback(self._foundPeerCandidate, session, transport_data, content_name, client)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
353 candidates = yield self._s5b.getCandidates(profile)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
354 # we remove duplicate candidates
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
355 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
356
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
357 transport_data['candidates'] = candidates
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
358 # we can now build a new <transport> element with our candidates
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
359 transport_elt = self._buildCandidates(session, candidates, sid, session_hash, client)
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
360
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
361 elif action == self._j.A_TRANSPORT_INFO:
1570
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
362 # 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
363 candidate_elt = None
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
364
1570
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
365 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
366 (self._proxyActivationInfo, ('activated', 'proxy-error'))):
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
367 for name in names:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
368 try:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
369 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
370 except StopIteration:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
371 continue
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
372 else:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
373 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
374 break
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
375
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
376 if candidate_elt is None:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
377 log.warning(u"Unexpected transport element: {}".format(transport_elt.toXml()))
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
378
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
379 else:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
380 log.warning(u"FIXME: unmanaged action {}".format(action))
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
381
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
382 defer.returnValue(transport_elt)
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
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
385 class XEP_0260_handler(XMPPHandler):
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
386 implements(iwokkel.IDisco)
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 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
389 return [disco.DiscoFeature(NS_JINGLE_S5B)]
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
390
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
391 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
392 return []