annotate src/plugins/plugin_xep_0096.py @ 359:eb9d33ba4e36

bridge: templates' constants can now be overrided
author Goffi <goffi@goffi.org>
date Mon, 06 Jun 2011 18:35:30 +0200
parents 7c79d4a8c9e6
children f964dcec1611
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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 """
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5 SAT plugin for managing xep-0096
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6 Copyright (C) 2009, 2010, 2011 Jérôme Poisson (goffi@goffi.org)
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7
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8 This program is free software: you can redistribute it and/or modify
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9 it under the terms of the GNU General Public License as published by
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10 the Free Software Foundation, either version 3 of the License, or
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11 (at your option) any later version.
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12
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13 This program is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU General Public License for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 """
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21
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22 from logging import debug, info, error
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23 from twisted.words.xish import domish
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24 from twisted.internet import protocol
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25 from twisted.words.protocols.jabber import client, jid
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26 from twisted.words.protocols.jabber import error as jab_error
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27 import os.path
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28 from twisted.internet import reactor #FIXME best way ???
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29 import pdb
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30
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31 from zope.interface import implements
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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 from wokkel import disco, iwokkel
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39
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40 IQ_SET = '/iq[@type="set"]'
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41 NS_SI = 'http://jabber.org/protocol/si'
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42 SI_REQUEST = IQ_SET + '/si[@xmlns="' + NS_SI + '"]'
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43
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44 PLUGIN_INFO = {
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45 "name": "XEP 0096 Plugin",
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46 "import_name": "XEP-0096",
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47 "type": "XEP",
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48 "protocols": ["XEP-0096"],
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49 "dependencies": ["XEP-0065"],
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50 "main": "XEP_0096",
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51 "handler": "yes",
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52 "description": _("""Implementation of SI File Transfert""")
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53 }
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54
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55 class XEP_0096():
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56
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57 def __init__(self, host):
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58 info(_("Plugin XEP_0096 initialization"))
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59 self.host = host
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60 self._waiting_for_approval = {}
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61 host.bridge.addMethod("sendFile", ".communication", in_sign='sss', out_sign='s', method=self.sendFile)
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62
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63 def getHandler(self, profile):
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64 return XEP_0096_handler(self)
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65
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66 def xep_96(self, IQ, profile):
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67 info (_("XEP-0096 management"))
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68 IQ.handled=True
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69 SI_elem = IQ.firstChildElement()
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70 debug(SI_elem.toXml())
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71 filename = ""
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72 file_size = ""
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73 for element in SI_elem.elements():
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74 if element.name == "file":
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75 info (_("File proposed: name=[%(name)s] size=%(size)s") % {'name':element['name'], 'size':element['size']})
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76 filename = element["name"]
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77 file_size = element["size"]
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78 elif element.name == "feature":
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79 from_jid = IQ["from"]
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80 self._waiting_for_approval[IQ["id"]] = (element, from_jid, file_size, profile)
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81 data={ "filename":filename, "from":from_jid, "size":file_size }
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82 self.host.askConfirmation(IQ["id"], "FILE_TRANSFERT", data, self.confirmationCB)
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83
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84 def confirmationCB(self, id, accepted, data):
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85 """Called on confirmation answer"""
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86 if accepted:
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87 data['size'] = self._waiting_for_approval[id][2]
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88 self.host.plugins["XEP-0065"].setData(data, id)
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89 self.approved(id)
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90 else:
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91 debug (_("Transfert [%s] refused"), id)
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92 del(self._waiting_for_approval[id])
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93
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94 def approved(self, id):
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95 """must be called when a file transfert has be accepted by client"""
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96 debug (_("Transfert [%s] accepted"), id)
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97
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98 if ( not self._waiting_for_approval.has_key(id) ):
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99 error (_("Approved unknow id !"))
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100 #TODO: manage this (maybe approved by several frontends)
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101 else:
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102 element, from_id, size, profile = self._waiting_for_approval[id]
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103 del(self._waiting_for_approval[id])
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104 self.negociate(element, id, from_id, profile)
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105
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106 def negociate(self, feat_elem, id, to_jid, profile):
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107 #TODO: put this in a plugin
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108 #FIXME: over ultra mega ugly, need to be generic
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109 client = self.host.getClient(profile)
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110 assert(client)
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111 info (_("Feature negociation"))
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112 data = feat_elem.firstChildElement()
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113 field = data.firstChildElement()
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114 #FIXME: several options ! Q&D code for test only
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115 option = field.firstChildElement()
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116 value = option.firstChildElement()
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117 if unicode(value) == "http://jabber.org/protocol/bytestreams":
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118 #ugly, as usual, need to be entirely rewritten (just for test !)
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119 result = domish.Element(('', 'iq'))
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120 result['type'] = 'result'
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121 result['id'] = id
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122 result['to'] = to_jid
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123 si = result.addElement('si', 'http://jabber.org/protocol/si')
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124 file = si.addElement('file', 'http://jabber.org/protocol/si/profile/file-transfer')
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125 feature = si.addElement('feature', 'http://jabber.org/protocol/feature-neg')
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126 x = feature.addElement('x', 'jabber:x:data')
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127 x['type'] = 'submit'
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128 field = x.addElement('field')
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129 field['var'] = 'stream-method'
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130 value = field.addElement('value')
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131 value.addContent('http://jabber.org/protocol/bytestreams')
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132 client.xmlstream.send(result)
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133
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134 def fileCB(self, answer, xmlstream, current_jid):
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135 if answer['type']=="result": #FIXME FIXME FIXME ugly ugly ugly ! and temp FIXME FIXME FIXME
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136 info("SENDING UGLY ANSWER")
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137 offer=client.IQ(xmlstream,'set')
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138 offer["from"]=current_jid.full()
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139 offer["to"]=answer['from']
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140 query=offer.addElement('query', 'http://jabber.org/protocol/bytestreams')
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141 query['mode']='tcp'
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142 streamhost=query.addElement('streamhost')
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143 streamhost['host']=self.host.memory.getParamA("IP", "File Transfert")
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144 streamhost['port']=self.host.memory.getParamA("Port", "File Transfert")
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145 streamhost['jid']=current_jid.full()
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146 offer.send()
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147
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148 def sendFile(self, to, filepath, profile_key='@DEFAULT@'):
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149 """send a file using XEP-0096
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150 Return an unique id to identify the transfert
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151 """
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152 current_jid, xmlstream = self.host.getJidNStream(profile_key)
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153 if not xmlstream:
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154 error (_('Asking for an non-existant or not connected profile'))
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155 return ""
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156 debug ("sendfile (%s) to %s", filepath, to )
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157 print type(filepath), type(to)
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158
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159 statinfo = os.stat(filepath)
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160
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161 offer=client.IQ(xmlstream,'set')
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162 debug ("Transfert ID: %s", offer["id"])
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163
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164 self.host.plugins["XEP-0065"].sendFile(offer["id"], filepath, str(statinfo.st_size))
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165
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166 offer["from"]=current_jid.full()
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167 offer["to"]=jid.JID(to).full()
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168 si=offer.addElement('si','http://jabber.org/protocol/si')
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169 si["mime-type"]='text/plain'
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170 si["profile"]='http://jabber.org/protocol/si/profile/file-transfer'
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171 file = si.addElement('file', 'http://jabber.org/protocol/si/profile/file-transfer')
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172 file['name']=os.path.basename(filepath)
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173 file['size']=str(statinfo.st_size)
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174
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175 ###
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176 # FIXME: Ugly temporary hard coded implementation of XEP-0020 & XEP-0004,
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177 # Need to be recoded elsewhere in a more generic way
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178 ###
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179
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180 feature=si.addElement('feature', "http://jabber.org/protocol/feature-neg")
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181 x=feature.addElement('x', "jabber:x:data")
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182 x['type']='form'
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183 field=x.addElement('field')
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184 field['type']='list-single'
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185 field['var']='stream-method'
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186 option = field.addElement('option')
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187 value = option.addElement('value', content='http://jabber.org/protocol/bytestreams')
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188
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189 offer.addCallback(self.fileCB, current_jid = current_jid, xmlstream = xmlstream)
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190 offer.send()
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191 return offer["id"] #XXX: using IQ id as file transfert id seems OK as IQ id are required
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192
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193 class XEP_0096_handler(XMPPHandler):
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194 implements(iwokkel.IDisco)
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195
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196 def __init__(self, plugin_parent):
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197 self.plugin_parent = plugin_parent
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198 self.host = plugin_parent.host
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199
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200 def connectionInitialized(self):
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201 self.xmlstream.addObserver(SI_REQUEST, self.plugin_parent.xep_96, profile = self.parent.profile)
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202
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203 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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204 return [disco.DiscoFeature(NS_SI)]
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205
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206 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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207 return []
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208