annotate idavoll/backend.py @ 178:07114105885a

Send last published item on subscription if node is so configured.
author Ralph Meijer <ralphm@ik.nu>
date Thu, 10 Apr 2008 14:02:53 +0000
parents 79d451d186b1
children 42e23a62b57f
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1 # -*- test-case-name: idavoll.test.test_backend -*-
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2 #
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3 # Copyright (c) 2003-2008 Ralph Meijer
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4 # See LICENSE for details.
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5
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6 import uuid
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7
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8 from zope.interface import implements
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9701df89c534 First take at notifications
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9
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10 from twisted.application import service
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11 from twisted.python import components
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12 from twisted.internet import defer
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13 from twisted.words.protocols.jabber.error import StanzaError
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14 from twisted.words.xish import utility
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15
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16 from wokkel.iwokkel import IDisco, IPubSubService
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17 from wokkel.pubsub import PubSubService, PubSubError
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18
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19 from idavoll import error, iidavoll
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20 from idavoll.iidavoll import IBackendService
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21
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22 def _get_affiliation(node, entity):
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23 d = node.get_affiliation(entity)
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24 d.addCallback(lambda affiliation: (node, affiliation))
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25 return d
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884268687229 Simplify call chain by mapping incoming requests directly to method
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26
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28 class BackendService(service.Service, utility.EventDispatcher):
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29
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30 implements(iidavoll.IBackendService)
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31
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32 options = {"pubsub#persist_items":
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33 {"type": "boolean",
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34 "label": "Persist items to storage"},
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35 "pubsub#deliver_payloads":
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36 {"type": "boolean",
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37 "label": "Deliver payloads with event notifications"},
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38 }
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40 default_config = {"pubsub#persist_items": True,
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41 "pubsub#deliver_payloads": True,
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42 }
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43
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44 def __init__(self, storage):
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45 utility.EventDispatcher.__init__(self)
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46 self.storage = storage
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47 self._callback_list = []
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48
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49 def supports_publisher_affiliation(self):
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50 return True
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51
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52 def supports_outcast_affiliation(self):
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53 return True
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54
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55 def supports_persistent_items(self):
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56 return True
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57
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58 def get_node_type(self, node_id):
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59 d = self.storage.get_node(node_id)
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60 d.addCallback(lambda node: node.get_type())
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61 return d
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62
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63 def get_nodes(self):
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64 return self.storage.get_node_ids()
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65
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66 def get_node_meta_data(self, node_id):
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67 d = self.storage.get_node(node_id)
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68 d.addCallback(lambda node: node.get_meta_data())
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69 d.addCallback(self._make_meta_data)
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70 return d
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71
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72 def _make_meta_data(self, meta_data):
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73 options = []
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74 for key, value in meta_data.iteritems():
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75 if self.options.has_key(key):
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76 option = {"var": key}
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77 option.update(self.options[key])
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78 option["value"] = value
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79 options.append(option)
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80
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81 return options
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82
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83 def _check_auth(self, node, requestor):
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84 def check(affiliation, node):
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85 if affiliation not in ['owner', 'publisher']:
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86 raise error.Forbidden()
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87 return node
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88
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89 d = node.get_affiliation(requestor)
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90 d.addCallback(check, node)
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91 return d
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92
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93 def publish(self, node_id, items, requestor):
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94 d = self.storage.get_node(node_id)
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95 d.addCallback(self._check_auth, requestor)
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96 d.addCallback(self._do_publish, items, requestor)
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97 return d
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98
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99 def _do_publish(self, node, items, requestor):
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100 configuration = node.get_configuration()
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101 persist_items = configuration["pubsub#persist_items"]
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102 deliver_payloads = configuration["pubsub#deliver_payloads"]
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103
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104 if items and not persist_items and not deliver_payloads:
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105 raise error.ItemForbidden()
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106 elif not items and (persist_items or deliver_payloads):
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107 raise error.ItemRequired()
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108
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109 if persist_items or deliver_payloads:
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110 for item in items:
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111 if not item.getAttribute("id"):
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112 item["id"] = str(uuid.uuid4())
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113
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114 if persist_items:
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115 d = node.store_items(items, requestor)
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116 else:
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117 d = defer.succeed(None)
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118
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119 d.addCallback(self._do_notify, node.id, items, deliver_payloads)
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120 return d
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121
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122 def _do_notify(self, result, node_id, items, deliver_payloads):
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123 if items and not deliver_payloads:
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124 for item in items:
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125 item.children = []
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126
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127 self.dispatch({'items': items, 'node_id': node_id},
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128 '//event/pubsub/notify')
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129
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130 def get_notification_list(self, node_id, items):
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131 d = self.storage.get_node(node_id)
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132 d.addCallback(lambda node: node.get_subscribers())
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133 d.addCallback(self._magic_filter, node_id, items)
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134 return d
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135
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136 def _magic_filter(self, subscribers, node_id, items):
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137 list = []
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138 for subscriber in subscribers:
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139 list.append((subscriber, items))
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140 return list
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141
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142 def register_notifier(self, observerfn, *args, **kwargs):
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143 self.addObserver('//event/pubsub/notify', observerfn, *args, **kwargs)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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144
167
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145 def subscribe(self, node_id, subscriber, requestor):
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146 subscriber_entity = subscriber.userhostJID()
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147 if subscriber_entity != requestor:
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148 return defer.fail(error.Forbidden())
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149
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150 d = self.storage.get_node(node_id)
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151 d.addCallback(_get_affiliation, subscriber_entity)
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152 d.addCallback(self._do_subscribe, subscriber)
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153 return d
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154
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155 def _do_subscribe(self, result, subscriber):
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156 node, affiliation = result
29
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157
167
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158 if affiliation == 'outcast':
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159 raise error.Forbidden()
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160
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161 d = node.add_subscription(subscriber, 'subscribed')
178
07114105885a Send last published item on subscription if node is so configured.
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162 d.addCallback(lambda _: self._send_last_published(node, subscriber))
167
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163 d.addCallback(lambda _: 'subscribed')
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164 d.addErrback(self._get_subscription, node, subscriber)
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165 d.addCallback(self._return_subscription, node.id)
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166 return d
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167
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168 def _get_subscription(self, failure, node, subscriber):
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169 failure.trap(error.SubscriptionExists)
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170 return node.get_subscription(subscriber)
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171
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172 def _return_subscription(self, result, node_id):
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173 return node_id, result
90
59378610b16e Implement node purging and node deletion.
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174
178
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175 def _send_last_published(self, node, subscriber):
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176 def notify_item(items):
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177 if not items:
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178 return
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179
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180 self.dispatch({'items': items,
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181 'node_id': node.id,
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182 'subscriber': subscriber},
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183 '//event/pubsub/notify')
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184
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185 config = node.get_configuration()
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186 if config["pubsub#send_last_published_item"] != 'on_sub':
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diff changeset
187 return
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188
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189 d = self.get_items(node.id, subscriber.userhostJID(), 1)
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190 d.addCallback(notify_item)
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diff changeset
191
167
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diff changeset
192 def unsubscribe(self, node_id, subscriber, requestor):
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193 if subscriber.userhostJID() != requestor:
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194 return defer.fail(error.Forbidden())
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195
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196 d = self.storage.get_node(node_id)
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197 d.addCallback(lambda node: node.remove_subscription(subscriber))
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198 return d
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199
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200 def get_subscriptions(self, entity):
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201 return self.storage.get_subscriptions(entity)
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202
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203 def supports_instant_nodes(self):
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204 return True
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205
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206 def create_node(self, node_id, requestor):
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diff changeset
207 if not node_id:
168
e2c2c2baf483 Fix use of uuid module now shipping with Python 2.5.
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diff changeset
208 node_id = 'generic/%s' % uuid.uuid4()
167
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diff changeset
209 d = self.storage.create_node(node_id, requestor)
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diff changeset
210 d.addCallback(lambda _: node_id)
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diff changeset
211 return d
90
59378610b16e Implement node purging and node deletion.
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diff changeset
212
167
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diff changeset
213 def get_default_configuration(self):
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214 d = defer.succeed(self.default_config)
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diff changeset
215 d.addCallback(self._make_config)
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diff changeset
216 return d
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diff changeset
217
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diff changeset
218 def get_node_configuration(self, node_id):
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diff changeset
219 if not node_id:
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diff changeset
220 raise error.NoRootNode()
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diff changeset
221
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222 d = self.storage.get_node(node_id)
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diff changeset
223 d.addCallback(lambda node: node.get_configuration())
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diff changeset
224
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diff changeset
225 d.addCallback(self._make_config)
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diff changeset
226 return d
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diff changeset
227
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diff changeset
228 def _make_config(self, config):
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diff changeset
229 options = []
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diff changeset
230 for key, value in self.options.iteritems():
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diff changeset
231 option = {"var": key}
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diff changeset
232 option.update(value)
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diff changeset
233 if config.has_key(key):
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diff changeset
234 option["value"] = config[key]
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diff changeset
235 options.append(option)
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diff changeset
236
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diff changeset
237 return options
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diff changeset
238
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diff changeset
239 def set_node_configuration(self, node_id, options, requestor):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
240 if not node_id:
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diff changeset
241 raise error.NoRootNode()
90
59378610b16e Implement node purging and node deletion.
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diff changeset
242
167
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diff changeset
243 for key, value in options.iteritems():
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diff changeset
244 if not self.options.has_key(key):
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diff changeset
245 raise error.InvalidConfigurationOption()
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diff changeset
246 if self.options[key]["type"] == 'boolean':
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diff changeset
247 try:
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diff changeset
248 options[key] = bool(int(value))
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parents: 159
diff changeset
249 except ValueError:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
250 raise error.InvalidConfigurationValue()
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diff changeset
251
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diff changeset
252 d = self.storage.get_node(node_id)
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diff changeset
253 d.addCallback(_get_affiliation, requestor)
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diff changeset
254 d.addCallback(self._do_set_node_configuration, options)
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diff changeset
255 return d
90
59378610b16e Implement node purging and node deletion.
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diff changeset
256
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
257 def _do_set_node_configuration(self, result, options):
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258 node, affiliation = result
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259
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260 if affiliation != 'owner':
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261 raise error.Forbidden()
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262
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263 return node.set_configuration(options)
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264
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265 def get_affiliations(self, entity):
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266 return self.storage.get_affiliations(entity)
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267
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268 def get_items(self, node_id, requestor, max_items=None, item_ids=[]):
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269 d = self.storage.get_node(node_id)
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270 d.addCallback(_get_affiliation, requestor)
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271 d.addCallback(self._do_get_items, max_items, item_ids)
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272 return d
90
59378610b16e Implement node purging and node deletion.
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273
167
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274 def _do_get_items(self, result, max_items, item_ids):
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275 node, affiliation = result
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276
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277 if affiliation == 'outcast':
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278 raise error.Forbidden()
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279
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280 if item_ids:
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281 return node.get_items_by_id(item_ids)
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282 else:
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283 return node.get_items(max_items)
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284
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285 def retract_item(self, node_id, item_ids, requestor):
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286 d = self.storage.get_node(node_id)
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287 d.addCallback(_get_affiliation, requestor)
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288 d.addCallback(self._do_retract, item_ids)
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289 return d
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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290
167
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291 def _do_retract(self, result, item_ids):
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292 node, affiliation = result
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293 persist_items = node.get_configuration()["pubsub#persist_items"]
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294
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295 if affiliation not in ['owner', 'publisher']:
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296 raise error.Forbidden()
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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297
167
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298 if not persist_items:
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299 raise error.NodeNotPersistent()
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300
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301 d = node.remove_items(item_ids)
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302 d.addCallback(self._do_notify_retraction, node.id)
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303 return d
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304
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305 def _do_notify_retraction(self, item_ids, node_id):
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306 self.dispatch({ 'item_ids': item_ids, 'node_id': node_id },
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
307 '//event/pubsub/retract')
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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diff changeset
308
167
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diff changeset
309 def purge_node(self, node_id, requestor):
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310 d = self.storage.get_node(node_id)
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311 d.addCallback(_get_affiliation, requestor)
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312 d.addCallback(self._do_purge)
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313 return d
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314
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diff changeset
315 def _do_purge(self, result):
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diff changeset
316 node, affiliation = result
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317 persist_items = node.get_configuration()["pubsub#persist_items"]
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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diff changeset
318
167
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diff changeset
319 if affiliation != 'owner':
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
320 raise error.Forbidden()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
321
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diff changeset
322 if not persist_items:
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diff changeset
323 raise error.NodeNotPersistent()
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diff changeset
324
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325 d = node.purge()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
326 d.addCallback(self._do_notify_purge, node.id)
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327 return d
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diff changeset
328
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diff changeset
329 def _do_notify_purge(self, result, node_id):
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diff changeset
330 self.dispatch(node_id, '//event/pubsub/purge')
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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diff changeset
331
167
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diff changeset
332 def register_pre_delete(self, pre_delete_fn):
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diff changeset
333 self._callback_list.append(pre_delete_fn)
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diff changeset
334
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
335 def get_subscribers(self, node_id):
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diff changeset
336 d = self.storage.get_node(node_id)
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diff changeset
337 d.addCallback(lambda node: node.get_subscribers())
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diff changeset
338 return d
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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diff changeset
339
167
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diff changeset
340 def delete_node(self, node_id, requestor):
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diff changeset
341 d = self.storage.get_node(node_id)
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diff changeset
342 d.addCallback(_get_affiliation, requestor)
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diff changeset
343 d.addCallback(self._do_pre_delete)
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diff changeset
344 return d
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diff changeset
345
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diff changeset
346 def _do_pre_delete(self, result):
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diff changeset
347 node, affiliation = result
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diff changeset
348
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diff changeset
349 if affiliation != 'owner':
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
350 raise error.Forbidden()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
351
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diff changeset
352 d = defer.DeferredList([cb(node.id) for cb in self._callback_list],
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
353 consumeErrors=1)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
354 d.addCallback(self._do_delete, node.id)
59
0fa161c00ed9 Use jid.JIDs everywhere in the backend.
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parents: 53
diff changeset
355
167
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diff changeset
356 def _do_delete(self, result, node_id):
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diff changeset
357 dl = []
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diff changeset
358 for succeeded, r in result:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
359 if succeeded and r:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
360 dl.extend(r)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
361
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diff changeset
362 d = self.storage.delete_node(node_id)
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parents: 159
diff changeset
363 d.addCallback(self._do_notify_delete, dl)
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parents: 159
diff changeset
364
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diff changeset
365 return d
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
366
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
367 def _do_notify_delete(self, result, dl):
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diff changeset
368 for d in dl:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
369 d.callback(None)
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diff changeset
370
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diff changeset
371
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diff changeset
372 class PubSubServiceFromBackend(PubSubService):
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diff changeset
373 """
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diff changeset
374 Adapts a backend to an xmpp publish-subscribe service.
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diff changeset
375 """
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diff changeset
376
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diff changeset
377 implements(IDisco)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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diff changeset
378
167
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diff changeset
379 _errorMap = {
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
380 error.NodeNotFound: ('item-not-found', None, None),
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
381 error.NodeExists: ('conflict', None, None),
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diff changeset
382 error.Forbidden: ('forbidden', None, None),
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parents: 159
diff changeset
383 error.ItemForbidden: ('bad-request', 'item-forbidden', None),
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
384 error.ItemRequired: ('bad-request', 'item-required', None),
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385 error.NoInstantNodes: ('not-acceptable',
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
386 'unsupported',
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
387 'instant-nodes'),
171
bc269696ef42 Reply with the correct error condition on subscription when not subscribed.
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parents: 169
diff changeset
388 error.NotSubscribed: ('unexpected-request', 'not-subscribed', None),
167
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diff changeset
389 error.InvalidConfigurationOption: ('not-acceptable', None, None),
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parents: 159
diff changeset
390 error.InvalidConfigurationValue: ('not-acceptable', None, None),
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parents: 159
diff changeset
391 error.NodeNotPersistent: ('feature-not-implemented',
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parents: 159
diff changeset
392 'unsupported',
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parents: 159
diff changeset
393 'persistent-node'),
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parents: 159
diff changeset
394 error.NoRootNode: ('bad-request', None, None),
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parents: 159
diff changeset
395 }
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
396
167
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397 def __init__(self, backend):
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diff changeset
398 PubSubService.__init__(self)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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diff changeset
399
167
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400 self.backend = backend
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diff changeset
401 self.hideNodes = False
153
753b8432460f Work towards JEP-0060 1.8
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diff changeset
402
167
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403 self.pubSubFeatures = self._getPubSubFeatures()
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404
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405 self.backend.register_notifier(self._notify)
174
79d451d186b1 Send out node deletion notifications.
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406 self.backend.register_pre_delete(self._pre_delete)
153
753b8432460f Work towards JEP-0060 1.8
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parents: 108
diff changeset
407
167
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408 def _getPubSubFeatures(self):
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409 features = [
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410 "config-node",
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411 "create-nodes",
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diff changeset
412 "delete-any",
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diff changeset
413 "delete-nodes",
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414 "item-ids",
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415 "meta-data",
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diff changeset
416 "publish",
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417 "purge-nodes",
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418 "retract-items",
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419 "retrieve-affiliations",
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420 "retrieve-default",
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diff changeset
421 "retrieve-items",
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diff changeset
422 "retrieve-subscriptions",
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
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423 "subscribe",
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diff changeset
424 ]
153
753b8432460f Work towards JEP-0060 1.8
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parents: 108
diff changeset
425
167
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diff changeset
426 if self.backend.supports_instant_nodes():
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parents: 159
diff changeset
427 features.append("instant-nodes")
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diff changeset
428
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diff changeset
429 if self.backend.supports_outcast_affiliation():
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diff changeset
430 features.append("outcast-affiliation")
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diff changeset
431
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diff changeset
432 if self.backend.supports_persistent_items():
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
433 features.append("persistent-items")
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parents: 159
diff changeset
434
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
435 if self.backend.supports_publisher_affiliation():
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
436 features.append("publisher-affiliation")
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
437
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
438 return features
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
439
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
440 def _notify(self, data):
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diff changeset
441 items = data['items']
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diff changeset
442 nodeIdentifier = data['node_id']
178
07114105885a Send last published item on subscription if node is so configured.
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parents: 174
diff changeset
443 if 'subscriber' not in data:
07114105885a Send last published item on subscription if node is so configured.
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diff changeset
444 d = self.backend.get_notification_list(nodeIdentifier, items)
07114105885a Send last published item on subscription if node is so configured.
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parents: 174
diff changeset
445 else:
07114105885a Send last published item on subscription if node is so configured.
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parents: 174
diff changeset
446 d = defer.succeed([(data['subscriber'], items)])
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
447 d.addCallback(lambda notifications: self.notifyPublish(self.serviceJID,
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
448 nodeIdentifier,
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
449 notifications))
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
450
174
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
451 def _pre_delete(self, nodeIdentifier):
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
452 d = self.backend.get_subscribers(nodeIdentifier)
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
453 d.addCallback(lambda subscribers: self.notifyDelete(self.serviceJID,
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
454 nodeIdentifier,
79d451d186b1 Send out node deletion notifications.
Ralph Meijer <ralphm@ik.nu>
parents: 172
diff changeset
455 subscribers))
79d451d186b1 Send out node deletion notifications.
Ralph Meijer <ralphm@ik.nu>
parents: 172
diff changeset
456 return d
79d451d186b1 Send out node deletion notifications.
Ralph Meijer <ralphm@ik.nu>
parents: 172
diff changeset
457
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
458 def _mapErrors(self, failure):
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parents: 159
diff changeset
459 e = failure.trap(*self._errorMap.keys())
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
460
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
461 condition, pubsubCondition, feature = self._errorMap[e]
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
462 msg = failure.value.msg
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
463
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
464 if pubsubCondition:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
465 exc = PubSubError(condition, pubsubCondition, feature, msg)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
466 else:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
467 exc = StanzaError(condition, text=msg)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
468
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
469 raise exc
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
470
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
471 def getNodeInfo(self, requestor, service, nodeIdentifier):
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parents: 159
diff changeset
472 info = {}
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
473
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
474 def saveType(result):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
475 info['type'] = result
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
476 return nodeIdentifier
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
477
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
478 def saveMetaData(result):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
479 info['meta-data'] = result
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
480 return info
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
481
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
482 d = defer.succeed(nodeIdentifier)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
483 d.addCallback(self.backend.get_node_type)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
484 d.addCallback(saveType)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
485 d.addCallback(self.backend.get_node_meta_data)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
486 d.addCallback(saveMetaData)
172
9bfb00edd0cc Fix Backend's getNodeInfo so that it properly adds its errback.
Ralph Meijer <ralphm@ik.nu>
parents: 171
diff changeset
487 d.addErrback(self._mapErrors)
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
488 return d
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
489
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
490 def getNodes(self, requestor, service):
169
96afb248df5e Fix typos in service creation. Make disco not respond when a resource is provided.
Ralph Meijer <ralphm@ik.nu>
parents: 168
diff changeset
491 if service.resource:
96afb248df5e Fix typos in service creation. Make disco not respond when a resource is provided.
Ralph Meijer <ralphm@ik.nu>
parents: 168
diff changeset
492 return defer.succeed([])
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
493 d = self.backend.get_nodes()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
494 return d.addErrback(self._mapErrors)
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parents: 159
diff changeset
495
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parents: 159
diff changeset
496 def publish(self, requestor, service, nodeIdentifier, items):
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parents: 159
diff changeset
497 d = self.backend.publish(nodeIdentifier, items, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
498 return d.addErrback(self._mapErrors)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
499
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
500 def subscribe(self, requestor, service, nodeIdentifier, subscriber):
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parents: 159
diff changeset
501 d = self.backend.subscribe(nodeIdentifier, subscriber, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
502 return d.addErrback(self._mapErrors)
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
503
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
504 def unsubscribe(self, requestor, service, nodeIdentifier, subscriber):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
505 d = self.backend.unsubscribe(nodeIdentifier, subscriber, requestor)
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parents: 159
diff changeset
506 return d.addErrback(self._mapErrors)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
507
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
508 def subscriptions(self, requestor, service):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
509 d = self.backend.get_subscriptions(requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
510 return d.addErrback(self._mapErrors)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
511
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
512 def affiliations(self, requestor, service):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
513 d = self.backend.get_affiliations(requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
514 return d.addErrback(self._mapErrors)
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515
167
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516 def create(self, requestor, service, nodeIdentifier):
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517 d = self.backend.create_node(nodeIdentifier, requestor)
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518 return d.addErrback(self._mapErrors)
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519
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520 def getDefaultConfiguration(self, requestor, service):
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parents: 159
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521 d = self.backend.get_default_configuration()
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522 return d.addErrback(self._mapErrors)
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523
167
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parents: 159
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524 def getConfiguration(self, requestor, service, nodeIdentifier):
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parents: 159
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525 d = self.backend.get_node_configuration(nodeIdentifier)
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parents: 159
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526 return d.addErrback(self._mapErrors)
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527
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Ralph Meijer <ralphm@ik.nu>
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528 def setConfiguration(self, requestor, service, nodeIdentifier, options):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
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529 d = self.backend.set_node_configuration(nodeIdentifier, options,
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parents: 159
diff changeset
530 requestor)
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parents: 159
diff changeset
531 return d.addErrback(self._mapErrors)
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532
167
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parents: 159
diff changeset
533 def items(self, requestor, service, nodeIdentifier, maxItems, itemIdentifiers):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
534 d = self.backend.get_items(nodeIdentifier, requestor, maxItems,
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Ralph Meijer <ralphm@ik.nu>
parents: 159
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535 itemIdentifiers)
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Ralph Meijer <ralphm@ik.nu>
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536 return d.addErrback(self._mapErrors)
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parents: 159
diff changeset
537
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parents: 159
diff changeset
538 def retract(self, requestor, service, nodeIdentifier, itemIdentifiers):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
539 d = self.backend.retract_item(nodeIdentifier, itemIdentifiers,
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
540 requestor)
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
541 return d.addErrback(self._mapErrors)
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d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
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542
167
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
543 def purge(self, requestor, service, nodeIdentifier):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
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544 d = self.backend.purge_node(nodeIdentifier, requestor)
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545 return d.addErrback(self._mapErrors)
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parents: 159
diff changeset
546
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parents: 159
diff changeset
547 def delete(self, requestor, service, nodeIdentifier):
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parents: 159
diff changeset
548 d = self.backend.delete_node(nodeIdentifier, requestor)
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
549 return d.addErrback(self._mapErrors)
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Ralph Meijer <ralphm@ik.nu>
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550
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
551 components.registerAdapter(PubSubServiceFromBackend,
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Ralph Meijer <ralphm@ik.nu>
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552 IBackendService,
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
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553 IPubSubService)