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annotate sat/plugins/plugin_exp_invitation.py @ 2912:a3faf1c86596

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plugin events: refactored invitation and personal lists logic: - invitation logic has been moved to a new generic "plugin_exp_invitation" plugin - plugin_misc_invitations has be rename "plugin_exp_email_invitation" to avoid confusion - personal event list has be refactored to use a new experimental "list of interest", which regroup all interestings items, events or other ones
author Goffi <goffi@goffi.org>
date Sun, 14 Apr 2019 08:21:51 +0200
parents sat/plugins/plugin_exp_events.py@003b8b4b56a7
children 672e6be3290f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin to detect language (experimental)
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5 # Copyright (C) 2009-2019 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 import exceptions
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22 from sat.core.constants import Const as C
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23 from sat.core.log import getLogger
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24 from twisted.internet import defer
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25 from twisted.words.protocols.jabber import jid
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26 from wokkel import disco, iwokkel
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27 from zope.interface import implements
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28 from twisted.words.protocols.jabber.xmlstream import XMPPHandler
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29
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30 log = getLogger(__name__)
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32
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33 PLUGIN_INFO = {
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34 C.PI_NAME: "Invitation",
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35 C.PI_IMPORT_NAME: "INVITATION",
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36 C.PI_TYPE: "EXP",
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37 C.PI_PROTOCOLS: [],
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38 C.PI_DEPENDENCIES: ["XEP-0060"],
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39 C.PI_RECOMMENDATIONS: [],
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40 C.PI_MAIN: "Invitation",
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41 C.PI_HANDLER: "yes",
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42 C.PI_DESCRIPTION: _(u"Experimental handling of invitations"),
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43 }
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44
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45 NS_INVITATION = u"https://salut-a-toi/protocol/invitation:0"
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46 INVITATION = '/message/invitation[@xmlns="{ns_invit}"]'.format(
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47 ns_invit=NS_INVITATION
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48 )
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49 NS_INVITATION_LIST = NS_INVITATION + u"#list"
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50
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51
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52 class Invitation(object):
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53
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54 def __init__(self, host):
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55 log.info(_(u"Invitation plugin initialization"))
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56 self.host = host
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57 self._p = self.host.plugins["XEP-0060"]
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58 # map from namespace of the invitation to callback handling it
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59 self._ns_cb = {}
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60
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61 def getHandler(self, client):
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62 return PubsubInvitationHandler(self)
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63
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64 def registerNamespace(self, namespace, callback):
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65 """Register a callback for a namespace
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66
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67 @param namespace(unicode): namespace handled
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68 @param callback(callbable): method handling the invitation
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69 For pubsub invitation, it will be called with following arguments:
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70 - client
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71 - service(jid.JID): pubsub service jid
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72 - node(unicode): pubsub node
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73 - item_id(unicode, None): pubsub item id
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74 - item_elt(domish.Element): item of the invitation
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75 @raise exceptions.ConflictError: this namespace is already registered
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76 """
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77 if namespace in self._ns_cb:
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78 raise exceptions.ConflictError(
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79 u"invitation namespace {namespace} is already register with {callback}"
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80 .format(namespace=namespace, callback=self._ns_cb[namespace]))
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81 self._ns_cb[namespace] = callback
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82
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83 def sendPubsubInvitation(self, client, invitee_jid, service, node,
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84 item_id):
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85 """Send an invitation in a <message> stanza
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86
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87 @param invitee_jid(jid.JID): entitee to send invitation to
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88 @param service(jid.JID): pubsub service
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89 @param node(unicode): pubsub node
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90 @param item_id(unicode): pubsub id
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91 """
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92 mess_data = {
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93 "from": client.jid,
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94 "to": invitee_jid,
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95 "uid": "",
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96 "message": {},
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97 "type": C.MESS_TYPE_CHAT,
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98 "subject": {},
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99 "extra": {},
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100 }
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101 client.generateMessageXML(mess_data)
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102 invitation_elt = mess_data["xml"].addElement("invitation", NS_INVITATION)
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103 pubsub_elt = invitation_elt.addElement(u"pubsub")
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104 pubsub_elt[u"service"] = service.full()
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105 pubsub_elt[u"node"] = node
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106 pubsub_elt[u"item"] = item_id
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107 client.send(mess_data[u"xml"])
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108
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109 @defer.inlineCallbacks
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110 def _parsePubsubElt(self, client, pubsub_elt):
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111 try:
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112 service = jid.JID(pubsub_elt["service"])
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113 node = pubsub_elt["node"]
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114 item_id = pubsub_elt.getAttribute("item")
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115 except (RuntimeError, KeyError):
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116 log.warning(_(u"Bad invitation, ignoring"))
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117 raise exceptions.DataError
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118
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119 try:
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120 items, metadata = yield self._p.getItems(client, service, node,
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121 item_ids=[item_id])
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122 except Exception as e:
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123 log.warning(_(u"Can't get item linked with invitation: {reason}").format(
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124 reason=e))
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125 try:
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126 item_elt = items[0]
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127 except IndexError:
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128 log.warning(_(u"Invitation was linking to a non existing item"))
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129 raise exceptions.DataError
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130
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131 try:
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132 namespace = item_elt.firstChildElement().uri
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133 except Exception as e:
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134 log.warning(_(u"Can't retrieve namespace of invitation: {reason}").format(
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135 reason = e))
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136 raise exceptions.DataError
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137
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138 args = [service, node, item_id, item_elt]
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139 defer.returnValue((namespace, args))
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140
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141 @defer.inlineCallbacks
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142 def onInvitation(self, message_elt, client):
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143 invitation_elt = message_elt.invitation
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144 for elt in invitation_elt.elements():
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145 if elt.uri != NS_INVITATION:
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146 log.warning(u"unexpected element: {xml}".format(xml=elt.toXml()))
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147 continue
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148 if elt.name == u"pubsub":
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149 method = self._parsePubsubElt
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150 else:
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151 log.warning(u"not implemented invitation element: {xml}".format(
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152 xml = elt.toXml()))
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153 continue
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154 try:
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155 namespace, args = yield method(client, elt)
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156 except exceptions.DataError:
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157 log.warning(u"Can't parse invitation element: {xml}".format(
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158 xml = elt.toXml()))
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159 continue
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160
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161 try:
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162 cb = self._ns_cb[namespace]
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163 except KeyError:
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164 log.warning(_(u'No handler for namespace "{namespace}", invitation ignored')
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165 .format(namespace=namespace))
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166 else:
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167 cb(client, *args)
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168
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169
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170 class PubsubInvitationHandler(XMPPHandler):
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171 implements(iwokkel.IDisco)
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172
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173 def __init__(self, plugin_parent):
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174 self.plugin_parent = plugin_parent
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175
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176 def connectionInitialized(self):
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177 self.xmlstream.addObserver(
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178 INVITATION, self.plugin_parent.onInvitation, client=self.parent
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179 )
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180
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181 def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
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182 return [
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183 disco.DiscoFeature(NS_INVITATION),
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184 ]
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185
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186 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
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187 return []