annotate libervia/backend/plugins/plugin_xep_0260.py @ 4221:2b000790b197

plugin XEP-0060: fix incorrect type hint.
author Goffi <goffi@goffi.org>
date Tue, 05 Mar 2024 17:31:56 +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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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 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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37
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38
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39 NS_JINGLE_S5B = "urn:xmpp:jingle:transports:s5b:1"
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40
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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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parents: 1570
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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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
diff changeset
285 who="our" if our_candidate else "other peer",
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286 candidate=choosed_candidate,
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parents: 2562
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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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314 if content_data["senders"] == session["role"]:
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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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parents: 3479
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:
3028
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:
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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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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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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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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
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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 """
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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
diff changeset
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:
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diff changeset
351 # candidate-used, one candidate was choosed
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diff changeset
352 try:
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diff changeset
353 cid = candidate_elt.attributes["cid"]
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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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parents: 2562
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>
parents: 1567
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>
parents: 2927
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)
1570
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diff changeset
377
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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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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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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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diff changeset
396 activation_d.callback(None)
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Goffi <goffi@goffi.org>
parents: 1567
diff changeset
397 else:
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061011fad5b1 plugin XEP-0260: better proxy error handling:
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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):
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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:
2624
56f94936df1e code style reformatting using black
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"
2624
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:
2624
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)
1631
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
3028
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
2624
56f94936df1e code style reformatting using black
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 []