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annotate src/plugins/plugin_xep_0234.py @ 1576:d5f59ba166fe

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plugins IP: getLocalIPs now return localhost IP instead of an empty list if no non-localhost ip can be found
author Goffi <goffi@goffi.org>
date Wed, 11 Nov 2015 18:19:49 +0100
parents 833bdb227b16
children 846a39900fa6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1c71d7335d02 plugin XEP-0234: jingle file transfer first draft
Goffi <goffi@goffi.org>
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin for Jingle File Transfer (XEP-0234)
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5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 from sat.core.i18n import _
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21 from sat.core.constants import Const as C
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22 from sat.core.log import getLogger
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23 log = getLogger(__name__)
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24 from sat.core import exceptions
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25 from wokkel import disco, iwokkel
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26 from zope.interface import implements
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27 from sat.tools import utils
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28 import os.path
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29 from twisted.words.xish import domish
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30 from twisted.words.protocols.jabber import jid
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31 from twisted.python import failure
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32 from twisted.words.protocols.jabber.xmlstream import XMPPHandler
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33 from twisted.internet import defer
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34
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35
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36 NS_JINGLE_FT = 'urn:xmpp:jingle:apps:file-transfer:4'
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37
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38 PLUGIN_INFO = {
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39 "name": "Jingle File Transfer",
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40 "import_name": "XEP-0234",
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41 "type": "XEP",
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42 "protocols": ["XEP-0234"],
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43 "dependencies": ["XEP-0166", "XEP-0300", "FILE"],
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44 "main": "XEP_0234",
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45 "handler": "yes",
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46 "description": _("""Implementation of Jingle File Transfer""")
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47 }
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48
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49
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50 class XEP_0234(object):
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51 # TODO: assure everything is closed when file is sent or session terminate is received
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52
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53 def __init__(self, host):
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54 log.info(_("plugin Jingle File Transfer initialization"))
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55 self.host = host
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56 self._j = host.plugins["XEP-0166"] # shortcut to access jingle
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57 self._j.registerApplication(NS_JINGLE_FT, self)
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58 self._f = host.plugins["FILE"]
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59 host.bridge.addMethod("fileJingleSend", ".plugin", in_sign='sssss', out_sign='', method=self._fileJingleSend)
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60
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61 def getHandler(self, profile):
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62 return XEP_0234_handler()
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63
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64 def _fileJingleSend(self, peer_jid, filepath, name="", file_desc="", profile=C.PROF_KEY_NONE):
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65 return self.fileJingleSend(jid.JID(peer_jid), filepath, name or None, file_desc or None, profile)
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66
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67 def fileJingleSend(self, peer_jid, filepath, name=None, file_desc=None, profile=C.PROF_KEY_NONE):
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68 self._j.initiate(peer_jid,
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69 [{'app_ns': NS_JINGLE_FT,
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70 'senders': self._j.ROLE_INITIATOR,
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71 'app_kwargs': {'filepath': filepath,
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72 'name': name,
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73 'file_desc': file_desc},
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74 }],
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75 profile=profile)
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76
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77 # jingle callbacks
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78
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79 def jingleSessionInit(self, session, content_name, filepath, name=None, file_desc=None, profile=C.PROF_KEY_NONE):
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80 content_data = session['contents'][content_name]
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81 application_data = content_data['application_data']
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82 assert 'file_path' not in application_data
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83 application_data['file_path'] = filepath
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84 file_data = application_data['file_data'] = {}
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85 file_data['date'] = utils.xmpp_date()
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86 file_data['desc'] = file_desc or ''
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87 file_data['media-type'] = "application/octet-stream" # TODO
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88 file_data['name'] = os.path.basename(filepath) if name is None else name
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89 file_data['size'] = os.path.getsize(filepath)
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90 desc_elt = domish.Element((NS_JINGLE_FT, 'description'))
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91 file_elt = desc_elt.addElement("file")
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92 for name in ('date', 'desc', 'media-type', 'name', 'size'):
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93 file_elt.addElement(name, content=unicode(file_data[name]))
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94 file_elt.addElement("range") # TODO
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95 file_elt.addChild(self.host.plugins["XEP-0300"].buidHash())
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96 return desc_elt
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97
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98 def jingleRequestConfirmation(self, action, session, content_name, desc_elt, profile):
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99 """This method request confirmation for a jingle session"""
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100 content_data = session['contents'][content_name]
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101 if content_data['senders'] not in (self._j.ROLE_INITIATOR, self._j.ROLE_RESPONDER):
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102 log.warning(u"Bad sender, assuming initiator")
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103 content_data['senders'] = self._j.ROLE_INITIATOR
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104 # first we grab file informations
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105 try:
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106 file_elt = desc_elt.elements(NS_JINGLE_FT, 'file').next()
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107 except StopIteration:
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108 raise failure.Failure(exceptions.DataError)
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109 file_data = {}
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110 for name in ('date', 'desc', 'media-type', 'name', 'range', 'size'):
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111 try:
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112 file_data[name] = unicode(file_elt.elements(NS_JINGLE_FT, name).next())
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113 except StopIteration:
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114 file_data[name] = ''
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115
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116 try:
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117 file_data['size'] = int(file_data['size'])
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118 except ValueError:
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119 raise failure.Failure(exceptions.DataError)
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120
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121 name = file_data['name']
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122 if '/' in name or '\\' in name:
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123 log.warning(u"File name contain path characters, we replace them: {}".format(name))
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124 file_data['name'] = name.replace('/', '_').replace('\\', '_')
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125
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126 # TODO: parse hash using plugin XEP-0300
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127
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128 content_data['application_data']['file_data'] = file_data
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129
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130 # now we actualy request permission to user
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131 def gotConfirmation(confirmed):
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132 if confirmed:
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133 finished_d = content_data['finished_d'] = defer.Deferred()
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134 args = [session, content_name, content_data, profile]
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135 finished_d.addCallbacks(self._finishedCb, self._finishedEb, args, None, args)
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136 return confirmed
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137
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138 d = self._f.getDestDir(session['peer_jid'], content_data, file_data, profile)
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139 d.addCallback(gotConfirmation)
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140 return d
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141
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142
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143 def jingleHandler(self, action, session, content_name, desc_elt, profile):
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144 content_data = session['contents'][content_name]
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145 application_data = content_data['application_data']
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146 if action in (self._j.A_ACCEPTED_ACK,):
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147 pass
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148 elif action == self._j.A_SESSION_INITIATE:
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149 file_elt = desc_elt.elements(NS_JINGLE_FT, 'file').next()
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150 try:
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151 file_elt.elements(NS_JINGLE_FT, 'range').next()
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152 except StopIteration:
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153 # initiator doesn't manage <range>, but we do so we advertise it
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154 log.debug("adding <range> element")
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155 file_elt.addElement('range')
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156 elif action == self._j.A_SESSION_ACCEPT:
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157 assert not 'file_obj' in content_data
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158 file_path = application_data['file_path']
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159 size = application_data['file_data']['size']
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160 content_data['file_obj'] = self._f.File(self.host,
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161 file_path,
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162 size=size,
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163 profile=profile
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164 )
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165 finished_d = content_data['finished_d'] = defer.Deferred()
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166 args = [session, content_name, content_data, profile]
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167 finished_d.addCallbacks(self._finishedCb, self._finishedEb, args, None, args)
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168 else:
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169 log.warning(u"FIXME: unmanaged action {}".format(action))
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170 return desc_elt
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171
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172 def _finishedCb(self, dummy, session, content_name, content_data, profile):
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173 log.debug(u"File transfer completed successfuly")
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174 if content_data['senders'] != session['role']:
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175 # we terminate the session only if we are the received,
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176 # as recommanded in XEP-0234 §2 (after example 6)
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177 self._j.contentTerminate(session, content_name, profile=profile)
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178 content_data['file_obj'].close()
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179
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180 def _finishedEb(self, failure, session, content_name, content_data, profile):
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181 log.warning(u"Error while streaming through s5b: {}".format(failure))
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182 content_data['file_obj'].close()
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183 self._j.contentTerminate(session, content_name, reason=self._j.REASON_FAILED_TRANSPORT, profile=profile)
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184
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185
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186 class XEP_0234_handler(XMPPHandler):
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187 implements(iwokkel.IDisco)
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188
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189 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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190 return [disco.DiscoFeature(NS_JINGLE_FT)]
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191
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192 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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193 return []