annotate libervia/backend/plugins/plugin_xep_0260.py @ 4219:1b5cf2ee1d86

plugin XEP-0384, XEP-0391: download missing devices list: when a peer jid was not in our roster, devices list was not retrieved, resulting in failed en/decryption. This patch does check it and download missing devices list in necessary. There is no subscription managed yet, so the list won't be updated in case of new devices, this should be addressed at some point.
author Goffi <goffi@goffi.org>
date Tue, 05 Mar 2024 17:31:36 +0100
parents b86912d3fd33
children e11b13418ba6
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1 #!/usr/bin/env python3
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2
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3
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4 # SAT plugin for Jingle (XEP-0260)
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5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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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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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 libervia.backend.core.i18n import _
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21 from libervia.backend.core.constants import Const as C
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22 from libervia.backend.core.log import getLogger
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23
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24 log = getLogger(__name__)
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25 from libervia.backend.core import exceptions
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26 from wokkel import disco, iwokkel
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27 from zope.interface import implementer
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28 from twisted.words.xish import domish
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29 from twisted.words.protocols.jabber import jid
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30 from twisted.internet import defer
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31 import uuid
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32
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33 try:
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34 from twisted.words.protocols.xmlstream import XMPPHandler
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35 except ImportError:
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36 from wokkel.subprotocols import XMPPHandler
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38
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39 NS_JINGLE_S5B = "urn:xmpp:jingle:transports:s5b:1"
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41 PLUGIN_INFO = {
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42 C.PI_NAME: "Jingle SOCKS5 Bytestreams",
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43 C.PI_IMPORT_NAME: "XEP-0260",
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44 C.PI_TYPE: "XEP",
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45 C.PI_MODES: C.PLUG_MODE_BOTH,
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46 C.PI_PROTOCOLS: ["XEP-0260"],
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47 C.PI_DEPENDENCIES: ["XEP-0166", "XEP-0065"],
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48 C.PI_RECOMMENDATIONS: ["XEP-0261"], # needed for fallback
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49 C.PI_MAIN: "XEP_0260",
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50 C.PI_HANDLER: "yes",
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51 C.PI_DESCRIPTION: _("""Implementation of Jingle SOCKS5 Bytestreams"""),
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52 }
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54
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55 class ProxyError(Exception):
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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.register_transport(NS_JINGLE_S5B, self._j.TRANSPORT_STREAMING, self, 100)
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73
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74 def get_handler(self, client):
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75 return XEP_0260_handler()
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76
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77 def _parse_candidates(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 _build_candidates(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(
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110 (
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111 candidate
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112 for candidate in candidates
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113 if candidate.type == self._s5b.TYPE_PROXY
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114 ),
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115 None,
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116 )
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117 transport_elt = domish.Element((NS_JINGLE_S5B, "transport"))
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118 transport_elt["sid"] = sid
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119 if proxy is not None:
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120 transport_elt["dstaddr"] = session_hash
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121 if mode is not None:
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122 transport_elt["mode"] = "tcp" # XXX: we only manage tcp for now
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123
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124 for candidate in candidates:
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125 log.debug("Adding candidate: {}".format(candidate))
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126 candidate_elt = transport_elt.addElement("candidate", NS_JINGLE_S5B)
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127 if candidate.id is None:
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128 candidate.id = str(uuid.uuid4())
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129 candidate_elt["cid"] = candidate.id
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130 candidate_elt["host"] = candidate.host
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131 candidate_elt["jid"] = candidate.jid.full()
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132 candidate_elt["port"] = str(candidate.port)
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133 candidate_elt["priority"] = str(candidate.priority)
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134 candidate_elt["type"] = candidate.type
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135 return transport_elt
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136
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137 async def jingle_session_init(self, client, session, content_name):
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138 content_data = session["contents"][content_name]
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139 transport_data = content_data["transport_data"]
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140 sid = transport_data["sid"] = str(uuid.uuid4())
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141 session_hash = transport_data["session_hash"] = self._s5b.get_session_hash(
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142 session["local_jid"], session["peer_jid"], sid
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143 )
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144 transport_data["peer_session_hash"] = self._s5b.get_session_hash(
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145 session["peer_jid"], session["local_jid"], sid
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146 ) # requester and target are inversed for peer candidates
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147 transport_data["stream_d"] = self._s5b.register_hash(client, session_hash, None)
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148 candidates = transport_data["candidates"] = await self._s5b.get_candidates(
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149 client, session["local_jid"])
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150 mode = "tcp" # XXX: we only manage tcp for now
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151 transport_elt = self._build_candidates(
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152 session, candidates, sid, session_hash, client, mode
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153 )
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154
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155 return transport_elt
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156
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157 def _proxy_activated_cb(self, iq_result_elt, client, candidate, session, content_name):
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158 """Called when activation confirmation has been received from proxy
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159
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160 cf XEP-0260 § 2.4
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161 """
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162 # now that the proxy is activated, we have to inform other peer
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163 content_data = session["contents"][content_name]
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164 iq_elt, transport_elt = self._j.build_action(
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165 client, self._j.A_TRANSPORT_INFO, session, content_name
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166 )
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167 transport_elt["sid"] = content_data["transport_data"]["sid"]
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168 activated_elt = transport_elt.addElement("activated")
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169 activated_elt["cid"] = candidate.id
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170 iq_elt.send()
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171
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172 def _proxy_activated_eb(self, stanza_error, client, candidate, session, content_name):
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173 """Called when activation error has been received from proxy
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174
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175 cf XEP-0260 § 2.4
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176 """
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177 # TODO: fallback to IBB
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178 # now that the proxy is activated, we have to inform other peer
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179 content_data = session["contents"][content_name]
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180 iq_elt, transport_elt = self._j.build_action(
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181 client, self._j.A_TRANSPORT_INFO, session, content_name
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182 )
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183 transport_elt["sid"] = content_data["transport_data"]["sid"]
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184 transport_elt.addElement("proxy-error")
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185 iq_elt.send()
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186 log.warning(
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187 "Can't activate proxy, we need to fallback to IBB: {reason}".format(
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188 reason=stanza_error.value.condition
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189 )
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190 )
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191 self.do_fallback(session, content_name, client)
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192
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193 def _found_peer_candidate(
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194 self, candidate, session, transport_data, content_name, client
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195 ):
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196 """Called when the best candidate from other peer is found
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197
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198 @param candidate(XEP_0065.Candidate, None): selected candidate,
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199 or None if no candidate is accessible
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200 @param session(dict): session data
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201 @param transport_data(dict): transport data
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202 @param content_name(unicode): name of the current content
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203 @param client(unicode): %(doc_client)s
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204 """
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205
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206 content_data = session["contents"][content_name]
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207 transport_data["best_candidate"] = candidate
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208 # we need to disconnect all non selected candidates before removing them
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209 for c in transport_data["peer_candidates"]:
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210 if c is None or c is candidate:
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211 continue
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212 c.discard()
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213 del transport_data["peer_candidates"]
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214 iq_elt, transport_elt = self._j.build_action(
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215 client, self._j.A_TRANSPORT_INFO, session, content_name
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216 )
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217 transport_elt["sid"] = content_data["transport_data"]["sid"]
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218 if candidate is None:
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219 log.warning("Can't connect to any peer candidate")
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220 candidate_elt = transport_elt.addElement("candidate-error")
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221 else:
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222 log.info("Found best peer candidate: {}".format(str(candidate)))
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223 candidate_elt = transport_elt.addElement("candidate-used")
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224 candidate_elt["cid"] = candidate.id
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225 iq_elt.send() # TODO: check result stanza
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226 self._check_candidates(session, content_name, transport_data, client)
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227
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228 def _check_candidates(self, session, content_name, transport_data, client):
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229 """Called when a candidate has been choosed
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230
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231 if we have both candidates, we select one, or fallback to an other transport
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232 @param session(dict): session data
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233 @param content_name(unicode): name of the current content
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234 @param transport_data(dict): transport data
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235 @param client(unicode): %(doc_client)s
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236 """
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237 content_data = session["contents"][content_name]
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238 try:
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239 best_candidate = transport_data["best_candidate"]
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240 except KeyError:
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241 # we have not our best candidate yet
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242 return
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243 try:
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244 peer_best_candidate = transport_data["peer_best_candidate"]
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245 except KeyError:
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246 # we have not peer best candidate yet
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247 return
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248
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249 # at this point we have both candidates, it's time to choose one
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250 if best_candidate is None or peer_best_candidate is None:
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251 choosed_candidate = best_candidate or peer_best_candidate
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252 else:
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253 if best_candidate.priority == peer_best_candidate.priority:
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254 # same priority, we choose initiator one according to XEP-0260 §2.4 #4
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255 log.debug(
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256 "Candidates have same priority, we select the one choosed by initiator"
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257 )
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258 if session["initiator"] == session["local_jid"]:
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259 choosed_candidate = best_candidate
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260 else:
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261 choosed_candidate = peer_best_candidate
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262 else:
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263 choosed_candidate = max(
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264 best_candidate, peer_best_candidate, key=lambda c: c.priority
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265 )
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266
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267 if choosed_candidate is None:
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268 log.warning("Socks5 negociation failed, we need to fallback to IBB")
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269 self.do_fallback(session, content_name, client)
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270 else:
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271 if choosed_candidate == peer_best_candidate:
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272 # peer_best_candidate was choosed from the candidates we have sent
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273 # so our_candidate is true if choosed_candidate is peer_best_candidate
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274 our_candidate = True
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275 # than also mean that best_candidate must be discarded !
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diff changeset
276 try:
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277 best_candidate.discard()
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278 except AttributeError: # but it can be None
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diff changeset
279 pass
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parents: 1570
diff changeset
280 else:
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Goffi <goffi@goffi.org>
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281 our_candidate = False
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parents:
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282
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283 log.info(
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284 "Socks5 negociation successful, {who} candidate will be used: {candidate}".format(
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parents: 2927
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285 who="our" if our_candidate else "other peer",
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286 candidate=choosed_candidate,
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287 )
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288 )
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289 del transport_data["best_candidate"]
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290 del transport_data["peer_best_candidate"]
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291
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diff changeset
292 if choosed_candidate.type == self._s5b.TYPE_PROXY:
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293 # the stream transfer need to wait for proxy activation
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294 # (see XEP-0260 § 2.4)
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295 if our_candidate:
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296 d = self._s5b.connect_candidate(
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297 client, choosed_candidate, transport_data["session_hash"]
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298 )
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299 d.addCallback(
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378188abe941 misc: replaced all "dummy" by the more conventional and readable "__" ("_" being used for gettext)
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300 lambda __: choosed_candidate.activate(
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301 transport_data["sid"], session["peer_jid"], client
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302 )
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303 )
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304 args = [client, choosed_candidate, session, content_name]
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305 d.addCallbacks(
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306 self._proxy_activated_cb, self._proxy_activated_eb, args, None, args
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307 )
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308 else:
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309 # this Deferred will be called when we'll receive activation confirmation from other peer
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310 d = transport_data["activation_d"] = defer.Deferred()
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311 else:
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312 d = defer.succeed(None)
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313
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diff changeset
314 if content_data["senders"] == session["role"]:
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parents: 2483
diff changeset
315 # we can now start the stream transfer (or start it after proxy activation)
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316 d.addCallback(
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524856bd7b19 massive refactoring to switch from camelCase to snake_case:
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diff changeset
317 lambda __: choosed_candidate.start_transfer(
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318 transport_data["session_hash"]
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319 )
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parents: 2562
diff changeset
320 )
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524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
321 d.addErrback(self._start_eb, session, content_name, client)
1756
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
322
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524856bd7b19 massive refactoring to switch from camelCase to snake_case:
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diff changeset
323 def _start_eb(self, fail, session, content_name, client):
1756
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
324 """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
325
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
326 Will try to fallback to IBB
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
327 """
061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
parents: 1755
diff changeset
328 try:
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ab2696e34d29 Python 3 port:
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parents: 2927
diff changeset
329 reason = str(fail.value)
1756
061011fad5b1 plugin XEP-0260: better proxy error handling:
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parents: 1755
diff changeset
330 except AttributeError:
3028
ab2696e34d29 Python 3 port:
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diff changeset
331 reason = str(fail)
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parents: 2927
diff changeset
332 log.warning("Cant start transfert, we'll try fallback method: {}".format(reason))
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
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parents: 3479
diff changeset
333 self.do_fallback(session, content_name, client)
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parents: 1567
diff changeset
334
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parents: 3479
diff changeset
335 def _candidate_info(
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diff changeset
336 self, candidate_elt, session, content_name, transport_data, client
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parents: 2562
diff changeset
337 ):
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parents: 1567
diff changeset
338 """Called when best candidate has been received from peer (or if none is working)
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
339
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Goffi <goffi@goffi.org>
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diff changeset
340 @param candidate_elt(domish.Element): candidate-used or candidate-error element
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
341 (see XEP-0260 §2.3)
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parents: 1567
diff changeset
342 @param session(dict): session data
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
343 @param content_name(unicode): name of the current content
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parents: 1567
diff changeset
344 @param transport_data(dict): transport data
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parents: 1567
diff changeset
345 @param client(unicode): %(doc_client)s
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parents: 1567
diff changeset
346 """
2624
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parents: 2562
diff changeset
347 if candidate_elt.name == "candidate-error":
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Goffi <goffi@goffi.org>
parents: 1567
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348 # candidate-error, no candidate worked
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diff changeset
349 transport_data["peer_best_candidate"] = None
1570
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parents: 1567
diff changeset
350 else:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
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parents: 1567
diff changeset
351 # candidate-used, one candidate was choosed
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
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diff changeset
352 try:
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diff changeset
353 cid = candidate_elt.attributes["cid"]
1570
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
354 except KeyError:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
355 log.warning("No cid found in <candidate-used>")
1570
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
356 raise exceptions.DataError
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
357 try:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
358 candidate = next((
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diff changeset
359 c for c in transport_data["candidates"] if c.id == cid
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
360 ))
1570
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Goffi <goffi@goffi.org>
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diff changeset
361 except StopIteration:
3028
ab2696e34d29 Python 3 port:
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diff changeset
362 log.warning("Given cid doesn't correspond to any known candidate !")
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parents: 2562
diff changeset
363 raise exceptions.DataError # TODO: send an error to other peer, and use better exception
1570
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
364 except KeyError:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
365 # 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
366 # but there is little probability
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diff changeset
367 log.error(
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
368 '"candidates" key doesn\'t exists in transport_data, it should at this point'
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parents: 2562
diff changeset
369 )
1570
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Goffi <goffi@goffi.org>
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diff changeset
370 raise exceptions.InternalError
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
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parents: 1567
diff changeset
371 # at this point we have the candidate choosed by other peer
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diff changeset
372 transport_data["peer_best_candidate"] = candidate
3028
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Goffi <goffi@goffi.org>
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diff changeset
373 log.info("Other peer best candidate: {}".format(candidate))
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parents: 1567
diff changeset
374
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diff changeset
375 del transport_data["candidates"]
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524856bd7b19 massive refactoring to switch from camelCase to snake_case:
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parents: 3479
diff changeset
376 self._check_candidates(session, content_name, transport_data, client)
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diff changeset
377
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524856bd7b19 massive refactoring to switch from camelCase to snake_case:
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diff changeset
378 def _proxy_activation_info(
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diff changeset
379 self, proxy_elt, session, content_name, transport_data, client
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diff changeset
380 ):
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diff changeset
381 """Called when proxy has been activated (or has sent an error)
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parents: 1567
diff changeset
382
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
383 @param proxy_elt(domish.Element): <activated/> or <proxy-error/> element
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parents: 1567
diff changeset
384 (see XEP-0260 §2.4)
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Goffi <goffi@goffi.org>
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diff changeset
385 @param session(dict): session data
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diff changeset
386 @param content_name(unicode): name of the current content
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parents: 1567
diff changeset
387 @param transport_data(dict): transport data
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parents: 1567
diff changeset
388 @param client(unicode): %(doc_client)s
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
389 """
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
390 try:
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diff changeset
391 activation_d = transport_data.pop("activation_d")
1570
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diff changeset
392 except KeyError:
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ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
393 log.warning("Received unexpected transport-info for proxy activation")
1570
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parents: 1567
diff changeset
394
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diff changeset
395 if proxy_elt.name == "activated":
1570
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parents: 1567
diff changeset
396 activation_d.callback(None)
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
397 else:
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061011fad5b1 plugin XEP-0260: better proxy error handling:
Goffi <goffi@goffi.org>
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diff changeset
398 activation_d.errback(ProxyError())
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
399
4180
b86912d3fd33 plugin IP: fix use of legacy URL + coroutine use:
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
400 async def jingle_handler(self, client, action, session, content_name, transport_elt):
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
401 content_data = session["contents"][content_name]
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
402 transport_data = content_data["transport_data"]
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
403
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
404 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
405 pass
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
406
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
407 elif action == self._j.A_SESSION_ACCEPT:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
408 # initiator side, we select a candidate in the ones sent by responder
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
409 assert "peer_candidates" not in transport_data
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
410 transport_data["peer_candidates"] = self._parse_candidates(transport_elt)
1560
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 elif action == self._j.A_START:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
413 session_hash = transport_data["session_hash"]
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
414 peer_candidates = transport_data["peer_candidates"]
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
415 stream_object = content_data["stream_object"]
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
416 self._s5b.associate_stream_object(client, session_hash, stream_object)
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
417 stream_d = transport_data.pop("stream_d")
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
418 stream_d.chainDeferred(content_data["finished_d"])
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
419 peer_session_hash = transport_data["peer_session_hash"]
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
420 d = self._s5b.get_best_candidate(
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
421 client, peer_candidates, session_hash, peer_session_hash
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
422 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
423 d.addCallback(
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
424 self._found_peer_candidate, session, transport_data, content_name, client
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
425 )
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
426
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
427 elif action == self._j.A_SESSION_INITIATE:
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
428 # 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
429 # and we give our candidates
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
430 assert "peer_candidates" not in transport_data
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
431 sid = transport_data["sid"] = transport_elt["sid"]
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
432 session_hash = transport_data["session_hash"] = self._s5b.get_session_hash(
2927
69e4716d6268 plugins (jingle) file transfer: use initial "from" attribute as local jid instead of client.jid:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
433 session["local_jid"], session["peer_jid"], sid
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
434 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
435 peer_session_hash = transport_data[
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
436 "peer_session_hash"
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
437 ] = self._s5b.get_session_hash(
2927
69e4716d6268 plugins (jingle) file transfer: use initial "from" attribute as local jid instead of client.jid:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
438 session["peer_jid"], session["local_jid"], sid
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
439 ) # requester and target are inversed for peer candidates
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
440 peer_candidates = transport_data["peer_candidates"] = self._parse_candidates(
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
441 transport_elt
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
442 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
443 stream_object = content_data["stream_object"]
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
444 stream_d = self._s5b.register_hash(client, session_hash, stream_object)
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
445 stream_d.chainDeferred(content_data["finished_d"])
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
446 d = self._s5b.get_best_candidate(
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
447 client, peer_candidates, session_hash, peer_session_hash
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
448 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
449 d.addCallback(
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
450 self._found_peer_candidate, session, transport_data, content_name, client
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
451 )
4180
b86912d3fd33 plugin IP: fix use of legacy URL + coroutine use:
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
452 candidates = await self._s5b.get_candidates(client, session["local_jid"])
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
453 # we remove duplicate candidates
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
454 candidates = [
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
455 candidate for candidate in candidates if candidate not in peer_candidates
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
456 ]
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
457
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
458 transport_data["candidates"] = candidates
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
459 # we can now build a new <transport> element with our candidates
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
460 transport_elt = self._build_candidates(
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
461 session, candidates, sid, session_hash, client
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
462 )
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
463
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
464 elif action == self._j.A_TRANSPORT_INFO:
1570
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
465 # 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
466 candidate_elt = None
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
467
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
468 for method, names in (
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
469 (self._candidate_info, ("candidate-used", "candidate-error")),
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
470 (self._proxy_activation_info, ("activated", "proxy-error")),
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
471 ):
1570
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
472 for name in names:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
473 try:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
474 candidate_elt = next(transport_elt.elements(NS_JINGLE_S5B, name))
1570
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
475 except StopIteration:
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
476 continue
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
477 else:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
478 method(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
479 candidate_elt, session, content_name, transport_data, client
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
480 )
1570
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
481 break
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
482
37d4be4a9fed plugins XEP-0260, XEP-0065: proxy handling:
Goffi <goffi@goffi.org>
parents: 1567
diff changeset
483 if candidate_elt is None:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
484 log.warning(
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
485 "Unexpected transport element: {}".format(transport_elt.toXml())
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
486 )
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
487 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
488 # 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
489 # note that sid argument is not necessary for sessions created by this plugin
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
490 self._s5b.kill_session(None, transport_data["session_hash"], None, client)
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
491 else:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
492 log.warning("FIXME: unmanaged action {}".format(action))
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
493
4180
b86912d3fd33 plugin IP: fix use of legacy URL + coroutine use:
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
494 return transport_elt
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
495
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
496 def jingle_terminate(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
497 if reason_elt.decline:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
498 log.debug("Session declined, deleting S5B session")
1755
d2e023da2983 plugin XEP-0260: kill s5b session if session is declined
Goffi <goffi@goffi.org>
parents: 1631
diff changeset
499 # we just need to clean the S5B session if it is declined
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
500 content_data = session["contents"][content_name]
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
501 transport_data = content_data["transport_data"]
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
502 self._s5b.kill_session(None, transport_data["session_hash"], None, client)
1755
d2e023da2983 plugin XEP-0260: kill s5b session if session is declined
Goffi <goffi@goffi.org>
parents: 1631
diff changeset
503
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
504 def _do_fallback(self, feature_checked, session, content_name, client):
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
505 """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
506
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
507 @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
508 """
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
509 if not feature_checked:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
510 log.warning(
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
511 "Other peer can't manage jingle IBB, be have to terminate the session"
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
512 )
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
513 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
514 else:
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
515 self._j.transport_replace(
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
516 client, self._jingle_ibb.NAMESPACE, session, content_name
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
517 )
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
518
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
519 def do_fallback(self, session, content_name, client):
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
520 """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
521
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
522 @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
523 @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
524 @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
525 """
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
526 if session["role"] != self._j.ROLE_INITIATOR:
1631
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
527 # 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
528 return
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
529 if self._jingle_ibb is None:
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Goffi <goffi@goffi.org>
parents: 2562
diff changeset
530 log.warning(
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
531 "Jingle IBB (XEP-0261) plugin is not available, we have to close the session"
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56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
532 )
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
533 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
534 else:
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56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
535 d = self.host.hasFeature(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
536 client, self._jingle_ibb.NAMESPACE, session["peer_jid"]
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
537 )
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
538 d.addCallback(self._do_fallback, session, content_name, client)
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25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
539 return d
25906c0dbc63 plugin XEP-0260, XEP-0261: fallback from S5B to IBB is implemented
Goffi <goffi@goffi.org>
parents: 1571
diff changeset
540
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
541
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ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2927
diff changeset
542 @implementer(iwokkel.IDisco)
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
543 class XEP_0260_handler(XMPPHandler):
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
544
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Goffi <goffi@goffi.org>
parents: 2562
diff changeset
545 def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
546 return [disco.DiscoFeature(NS_JINGLE_S5B)]
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
547
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
548 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
1560
dcce63810733 plugin XEP-0260: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
549 return []