Mercurial > libervia-pubsub

annotate idavoll/pubsub.py @ 73:5d7a924ebddb

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Reworked disco support. Actually return disco items.
author Ralph Meijer <ralphm@ik.nu>
date Sun, 07 Nov 2004 14:21:09 +0000
parents a3d67cbab9c4
children 995ba223a43b
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1 from twisted.protocols.jabber import component,jid
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2 from twisted.xish import utility, domish
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3 from twisted.python import components
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4 from twisted.internet import defer
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5
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6 import backend
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7 import xmpp_error
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8 import disco
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9
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10 NS_COMPONENT = 'jabber:component:accept'
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11 NS_PUBSUB = 'http://jabber.org/protocol/pubsub'
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12 NS_PUBSUB_EVENT = NS_PUBSUB + '#event'
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13 NS_PUBSUB_ERRORS = NS_PUBSUB + '#errors'
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15 IQ_GET = '/iq[@type="get"]'
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16 IQ_SET = '/iq[@type="set"]'
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17 PUBSUB_ELEMENT = '/pubsub[@xmlns="' + NS_PUBSUB + '"]'
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18 PUBSUB_GET = IQ_GET + PUBSUB_ELEMENT
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19 PUBSUB_SET = IQ_SET + PUBSUB_ELEMENT
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20 PUBSUB_CREATE = PUBSUB_SET + '/create'
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21 PUBSUB_PUBLISH = PUBSUB_SET + '/publish'
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22 PUBSUB_SUBSCRIBE = PUBSUB_SET + '/subscribe'
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23 PUBSUB_UNSUBSCRIBE = PUBSUB_SET + '/unsubscribe'
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24 PUBSUB_OPTIONS_GET = PUBSUB_GET + '/options'
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25 PUBSUB_OPTIONS_SET = PUBSUB_SET + '/options'
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26 PUBSUB_CONFIGURE_GET = PUBSUB_GET + '/configure'
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27 PUBSUB_CONFIGURE_SET = PUBSUB_SET + '/configure'
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28 PUBSUB_AFFILIATIONS = PUBSUB_GET + '/affiliations'
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30 class Error(Exception):
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31 pubsub_error = None
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32 stanza_error = None
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33 msg = ''
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34
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35 class NotImplemented(Error):
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36 stanza_error = 'feature-not-implemented'
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38 class BadRequest(Error):
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39 stanza_error = 'bad-request'
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40
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41 class OptionsUnavailable(Error):
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42 stanza_error = 'feature-not-implemented'
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43 pubsub_error = 'subscription-options-unavailable'
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44
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45 class SubscriptionOptionsUnavailable(Error):
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46 stanza_error = 'not-acceptable'
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47 pubsub_error = 'subscription-options-unavailable'
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48
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49 class NodeNotConfigurable(Error):
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50 stanza_error = 'feature-not-implemented'
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51 pubsub_error = 'node-not-configurable'
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52
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53 class CreateNodeNotConfigurable(Error):
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54 stanza_error = 'not-acceptable'
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55 pubsub_error = 'node-not-configurable'
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57
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58
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59 error_map = {
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60 backend.NotAuthorized: ('not-authorized', None),
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61 backend.NodeNotFound: ('item-not-found', None),
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62 backend.NoPayloadAllowed: ('bad-request', None),
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63 backend.PayloadExpected: ('bad-request', None),
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64 backend.NoInstantNodes: ('not-acceptable', None),
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65 backend.NodeExists: ('conflict', None),
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66 backend.NotImplemented: ('feature-not-implemented', None),
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67 backend.NotSubscribed: ('not-authorized', 'requestor-not-subscribed'),
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68 }
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69
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70 class Service(component.Service):
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71
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72 __implements__ = component.IService
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74 def __init__(self, backend):
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75 self.backend = backend
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76
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77 def error(self, failure, iq):
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78 try:
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79 e = failure.trap(Error, *error_map.keys())
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80
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81 if e == Error:
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82 stanza_error = failure.value.stanza_error
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83 pubsub_error = failure.value.pubsub_error
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84 msg = ''
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85 else:
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86 stanza_error, pubsub_error = error_map[e]
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87 msg = failure.value.msg
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88
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89 xmpp_error.error_from_iq(iq, stanza_error, msg)
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90 if pubsub_error:
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91 iq.error.addElement((NS_PUBSUB_ERRORS, pubsub_error))
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92 return iq
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93 except:
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94 xmpp_error.error_from_iq(iq, 'internal-server-error')
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95 self.send(iq)
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96 raise
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97
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98 def success(self, result, iq):
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99 iq.swapAttributeValues("to", "from")
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100 iq["type"] = 'result'
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101 iq.children = result or []
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102 return iq
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103
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104 def handler_wrapper(self, handler, iq):
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105 try:
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106 d = handler(iq)
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107 except:
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108 d = defer.fail()
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109
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110 d.addCallback(self.success, iq)
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111 d.addErrback(self.error, iq)
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112 d.addCallback(self.send)
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113 iq.handled = True
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114
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115 class ComponentServiceFromService(Service):
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116
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117 def get_disco_info(self, node):
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118 info = []
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119
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120 if not node:
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121 info.append(disco.Identity('pubsub', 'generic',
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122 'Generic Pubsub Service'))
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123
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124 if self.backend.supports_publisher_affiliation():
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125 info.append(disco.Feature(NS_PUBSUB + "#publisher-affiliation"))
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126
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127 if self.backend.supports_outcast_affiliation():
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128 info.append(disco.Feature(NS_PUBSUB + "#outcast-affiliation"))
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129
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130 if self.backend.supports_persistent_items():
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131 info.append(disco.Feature(NS_PUBSUB + "#persistent-items"))
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132
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133 return defer.succeed(info)
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134 else:
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135 d = self.backend.get_node_type(node)
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136 d.addCallback(lambda x: [disco.Identity('pubsub', x)])
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137 d.addErrback(lambda _: [])
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138 return d
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139
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140 def get_disco_items(self, node):
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141 if node:
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142 return defer.succeed([])
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143
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144 d = self.backend.get_nodes()
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145 d.addCallback(lambda nodes: [disco.Item(self.parent.jabberId, node)
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146 for node in nodes])
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147 return d
31
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148
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149 components.registerAdapter(ComponentServiceFromService, backend.IBackendService, component.IService)
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150
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151 class ComponentServiceFromNotificationService(Service):
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152
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153 def componentConnected(self, xmlstream):
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154 self.backend.register_notifier(self.notify)
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155
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156 def notify(self, object):
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157 node_id = object["node_id"]
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158 items = object["items"]
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159 d = self.backend.get_notification_list(node_id, items)
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160 d.addCallback(self._notify, node_id)
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161
31
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162 def _notify(self, list, node_id):
38
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163 print list
31
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164 for recipient, items in list.items():
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165 self._notify_recipient(recipient, node_id, items)
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166
31
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167 def _notify_recipient(self, recipient, node_id, itemlist):
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168 message = domish.Element((NS_COMPONENT, "message"))
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169 message["from"] = self.parent.jabberId
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170 message["to"] = recipient
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171 event = message.addElement((NS_PUBSUB_EVENT, "event"))
31
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172 items = event.addElement("items")
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173 items["node"] = node_id
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174 items.children.extend(itemlist)
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175 self.send(message)
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176
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177 components.registerAdapter(ComponentServiceFromNotificationService, backend.INotificationService, component.IService)
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178
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179 class ComponentServiceFromPublishService(Service):
4
ea195dc1732d Allow publication of more than 1 item.
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180
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181 def componentConnected(self, xmlstream):
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182 xmlstream.addObserver(PUBSUB_PUBLISH, self.onPublish)
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183
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184 def onPublish(self, iq):
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185 self.handler_wrapper(self._onPublish, iq)
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186
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187 def _onPublish(self, iq):
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188 node = iq.pubsub.publish["node"]
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189
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190 items = []
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191 for child in iq.pubsub.publish.children:
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192 if child.__class__ == domish.Element and child.name == 'item':
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193 items.append(child)
7
a8cfb31dc50c Implemented fallback for feature-not-implemented.
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194
31
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195 print items
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196
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197 return self.backend.publish(node, items,
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198 jid.JID(iq["from"]).userhostJID())
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e01bbbfa8a46 Implemented node creation.
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199
31
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200 components.registerAdapter(ComponentServiceFromPublishService, backend.IPublishService, component.IService)
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201
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202 class ComponentServiceFromSubscriptionService(Service):
16
ce3d0db64da1 Implemented basic subscribing.
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203
31
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204 def componentConnected(self, xmlstream):
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205 xmlstream.addObserver(PUBSUB_SUBSCRIBE, self.onSubscribe)
38
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206 xmlstream.addObserver(PUBSUB_UNSUBSCRIBE, self.onUnsubscribe)
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207 xmlstream.addObserver(PUBSUB_OPTIONS_GET, self.onOptionsGet)
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208 xmlstream.addObserver(PUBSUB_OPTIONS_SET, self.onOptionsSet)
58
3e2e0040e3e0 Return support for the pubsub#subscribe feature.
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209
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210 def get_disco_info(self, node):
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211 info = []
58
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212
3e2e0040e3e0 Return support for the pubsub#subscribe feature.
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213 if not node:
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214 info.append(disco.Feature(NS_PUBSUB + '#subscribe'))
58
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215
73
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216 return defer.succeed(info)
31
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217
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218 def onSubscribe(self, iq):
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219 self.handler_wrapper(self._onSubscribe, iq)
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e01bbbfa8a46 Implemented node creation.
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diff changeset
220
31
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221 def _onSubscribe(self, iq):
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222 if iq.pubsub.options:
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223 raise SubscribeOptionsUnavailable
21
e01bbbfa8a46 Implemented node creation.
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224
48
671ead538758 Check for malformed subscription request.
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225 try:
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226 node_id = iq.pubsub.subscribe["node"]
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227 subscriber = jid.JID(iq.pubsub.subscribe["jid"])
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228 except KeyError:
671ead538758 Check for malformed subscription request.
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229 raise BadRequest
671ead538758 Check for malformed subscription request.
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diff changeset
230
31
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231 requestor = jid.JID(iq["from"]).userhostJID()
38
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232 d = self.backend.subscribe(node_id, subscriber, requestor)
31
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diff changeset
233 d.addCallback(self.return_subscription)
38
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diff changeset
234 return d
7
a8cfb31dc50c Implemented fallback for feature-not-implemented.
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diff changeset
235
31
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236 def return_subscription(self, result):
60
f6b7a06b8870 Implement retrieving affiliations.
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diff changeset
237 reply = domish.Element((NS_PUBSUB, "pubsub"))
31
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diff changeset
238 entity = reply.addElement("entity")
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diff changeset
239 entity["node"] = result["node"]
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diff changeset
240 entity["jid"] = result["jid"].full()
48
671ead538758 Check for malformed subscription request.
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diff changeset
241 entity["affiliation"] = result["affiliation"] or 'none'
31
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diff changeset
242 entity["subscription"] = result["subscription"]
38
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
243 return [reply]
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diff changeset
244
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
245 def onUnsubscribe(self, iq):
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
246 self.handler_wrapper(self._onUnsubscribe, iq)
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diff changeset
247
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
248 def _onUnsubscribe(self, iq):
47
31eb00734cc5 Check for malformed unsubscribe request.
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parents: 38
diff changeset
249 try:
31eb00734cc5 Check for malformed unsubscribe request.
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diff changeset
250 node_id = iq.pubsub.unsubscribe["node"]
48
671ead538758 Check for malformed subscription request.
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diff changeset
251 subscriber = jid.JID(iq.pubsub.unsubscribe["jid"])
47
31eb00734cc5 Check for malformed unsubscribe request.
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parents: 38
diff changeset
252 except KeyError:
31eb00734cc5 Check for malformed unsubscribe request.
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parents: 38
diff changeset
253 raise BadRequest
31eb00734cc5 Check for malformed unsubscribe request.
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parents: 38
diff changeset
254
38
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
255 requestor = jid.JID(iq["from"]).userhostJID()
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
256 return self.backend.unsubscribe(node_id, subscriber, requestor)
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diff changeset
257
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
258 def onOptionsGet(self, iq):
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diff changeset
259 self.handler_wrapper(self._onOptionsGet, iq)
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diff changeset
260
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
261 def _onOptionsGet(self, iq):
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
262 raise OptionsUnavailable
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
263
c9ddca3cce20 Change exception classes to include stanza error.
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parents: 31
diff changeset
264 def onOptionsSet(self, iq):
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
265 self.handler_wrapper(self._onOptionsSet, iq)
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
266
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
267 def _onOptionsSet(self, iq):
c9ddca3cce20 Change exception classes to include stanza error.
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diff changeset
268 raise OptionsUnavailable
23
884268687229 Simplify call chain by mapping incoming requests directly to method
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diff changeset
269
31
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diff changeset
270 components.registerAdapter(ComponentServiceFromSubscriptionService, backend.ISubscriptionService, component.IService)
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diff changeset
271
fa866793075d Split up implementation in several Services that match the division
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diff changeset
272 class ComponentServiceFromNodeCreationService(Service):
23
884268687229 Simplify call chain by mapping incoming requests directly to method
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diff changeset
273
68
a3d67cbab9c4 Return deferreds from getFeatures() and getIdentities().
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parents: 60
diff changeset
274 def componentConnected(self, xmlstream):
a3d67cbab9c4 Return deferreds from getFeatures() and getIdentities().
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diff changeset
275 xmlstream.addObserver(PUBSUB_CREATE, self.onCreate)
a3d67cbab9c4 Return deferreds from getFeatures() and getIdentities().
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parents: 60
diff changeset
276 xmlstream.addObserver(PUBSUB_CONFIGURE_GET, self.onConfigureGet)
a3d67cbab9c4 Return deferreds from getFeatures() and getIdentities().
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parents: 60
diff changeset
277 xmlstream.addObserver(PUBSUB_CONFIGURE_SET, self.onConfigureSet)
a3d67cbab9c4 Return deferreds from getFeatures() and getIdentities().
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parents: 60
diff changeset
278
73
5d7a924ebddb Reworked disco support.
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parents: 68
diff changeset
279 def get_disco_info(self, node):
5d7a924ebddb Reworked disco support.
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diff changeset
280 info = []
56
55fa890ef60b Match backend's supported_*() methods in getFeatures() of ComponentServiceFromService.
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diff changeset
281
55fa890ef60b Match backend's supported_*() methods in getFeatures() of ComponentServiceFromService.
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diff changeset
282 if not node:
73
5d7a924ebddb Reworked disco support.
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diff changeset
283 info.append(disco.Feature(NS_PUBSUB + "#create-nodes"))
56
55fa890ef60b Match backend's supported_*() methods in getFeatures() of ComponentServiceFromService.
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diff changeset
284
55fa890ef60b Match backend's supported_*() methods in getFeatures() of ComponentServiceFromService.
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parents: 48
diff changeset
285 if self.backend.supports_instant_nodes():
73
5d7a924ebddb Reworked disco support.
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diff changeset
286 info.append(disco.Feature(NS_PUBSUB + "#instant-nodes"))
56
55fa890ef60b Match backend's supported_*() methods in getFeatures() of ComponentServiceFromService.
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parents: 48
diff changeset
287
73
5d7a924ebddb Reworked disco support.
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parents: 68
diff changeset
288 return defer.succeed(info)
31
fa866793075d Split up implementation in several Services that match the division
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diff changeset
289
fa866793075d Split up implementation in several Services that match the division
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diff changeset
290 def onCreate(self, iq):
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diff changeset
291 self.handler_wrapper(self._onCreate, iq)
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292
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293 def _onCreate(self, iq):
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294 if iq.pubsub.options:
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295 raise CreateNodeNotConfigurable
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296
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297 node = iq.pubsub.create.getAttribute("node")
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298
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299 owner = jid.JID(iq["from"]).userhostJID()
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300
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301 d = self.backend.create_node(node, owner)
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302 d.addCallback(self.return_create_response, iq)
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303 return d
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304
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305 def return_create_response(self, result, iq):
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306 if iq.pubsub.create["node"] is None:
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307 reply = domish.Element((NS_PUBSUB, 'pubsub'))
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308 entity = reply.addElement('create')
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309 entity['node'] = result['node_id']
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310 return [reply]
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311
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312 def onConfigureGet(self, iq):
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313 self.handler_wrapper(self._onConfigureGet, iq)
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314
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315 def _onConfigureGet(self, iq):
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316 raise NodeNotConfigurable
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317
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318 def onConfigureSet(self, iq):
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319 self.handler_wrapper(self._onConfigureSet, iq)
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320
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321 def _onConfigureSet(self, iq):
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322 raise NodeNotConfigurable
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323
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324 components.registerAdapter(ComponentServiceFromNodeCreationService, backend.INodeCreationService, component.IService)
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325
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326 class ComponentServiceFromAffiliationsService(Service):
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327
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328 def componentConnected(self, xmlstream):
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329 xmlstream.addObserver(PUBSUB_AFFILIATIONS, self.onAffiliations)
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330
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331 def onAffiliations(self, iq):
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332 self.handler_wrapper(self._onAffiliations, iq)
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333
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334 def _onAffiliations(self, iq):
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335 d = self.backend.get_affiliations(jid.JID(iq["from"]).userhostJID())
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336 d.addCallback(self._return_affiliations_response, iq)
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337 return d
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338
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339 def _return_affiliations_response(self, result, iq):
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340 reply = domish.Element((NS_PUBSUB, 'pubsub'))
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341 affiliations = reply.addElement('affiliations')
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342 for r in result:
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343 entity = affiliations.addElement('entity')
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344 entity['node'] = r['node']
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345 entity['jid'] = r['jid'].full()
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346 entity['affiliation'] = r['affiliation'] or 'none'
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347 entity['subscription'] = r['subscription'] or 'none'
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348 return [reply]
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349
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350 components.registerAdapter(ComponentServiceFromAffiliationsService, backend.IAffiliationsService, component.IService)