Mercurial > libervia-pubsub

annotate sat_pubsub/memory_storage.py @ 327:6662cc9519cc

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updated INSTALL file
author Goffi <goffi@goffi.org>
date Wed, 09 Mar 2016 10:41:38 +0100
parents 5d7c3787672e
children 8bd8be6815ab
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1 #!/usr/bin/python
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2 #-*- coding: utf-8 -*-
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3
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4 # Copyright (c) 2003-2011 Ralph Meijer
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5 # Copyright (c) 2012-2016 Jérôme Poisson
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6
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7
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8 # This program is free software: you can redistribute it and/or modify
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9 # it under the terms of the GNU Affero General Public License as published by
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10 # the Free Software Foundation, either version 3 of the License, or
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11 # (at your option) any later version.
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13 # This program is distributed in the hope that it will be useful,
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 # GNU Affero General Public License for more details.
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18 # You should have received a copy of the GNU Affero General Public License
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19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 # --
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21
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22 # This program is based on Idavoll (http://idavoll.ik.nu/),
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23 # originaly written by Ralph Meijer (http://ralphm.net/blog/)
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24 # It is sublicensed under AGPL v3 (or any later version) as allowed by the original
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25 # license.
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27 # --
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29 # Here is a copy of the original license:
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30
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31 # Copyright (c) 2003-2011 Ralph Meijer
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33 # Permission is hereby granted, free of charge, to any person obtaining
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34 # a copy of this software and associated documentation files (the
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35 # "Software"), to deal in the Software without restriction, including
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36 # without limitation the rights to use, copy, modify, merge, publish,
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37 # distribute, sublicense, and/or sell copies of the Software, and to
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38 # permit persons to whom the Software is furnished to do so, subject to
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39 # the following conditions:
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41 # The above copyright notice and this permission notice shall be
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42 # included in all copies or substantial portions of the Software.
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44 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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45 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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46 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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47 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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48 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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49 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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50 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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5191ba7c4df8 Work towards first release 0.5.0.
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53 import copy
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54 from zope.interface import implements
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55 from twisted.internet import defer
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56 from twisted.words.protocols.jabber import jid
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58 from wokkel.pubsub import Subscription
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59
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60 from sat_pubsub import error, iidavoll
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61
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62 class Storage:
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63
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64 implements(iidavoll.IStorage)
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66 defaultConfig = {
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67 'leaf': {
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68 "pubsub#persist_items": True,
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69 "pubsub#deliver_payloads": True,
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70 "pubsub#send_last_published_item": 'on_sub',
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71 },
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72 'collection': {
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73 "pubsub#deliver_payloads": True,
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74 "pubsub#send_last_published_item": 'on_sub',
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75 }
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76 }
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78 def __init__(self):
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79 rootNode = CollectionNode('', jid.JID('localhost'),
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80 copy.copy(self.defaultConfig['collection']))
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81 self._nodes = {'': rootNode}
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84 def getNode(self, nodeIdentifier):
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85 try:
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86 node = self._nodes[nodeIdentifier]
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87 except KeyError:
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88 return defer.fail(error.NodeNotFound())
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89
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90 return defer.succeed(node)
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92
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93 def getNodeIds(self):
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94 return defer.succeed(self._nodes.keys())
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97 def createNode(self, nodeIdentifier, owner, config):
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98 if nodeIdentifier in self._nodes:
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99 return defer.fail(error.NodeExists())
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101 if config['pubsub#node_type'] != 'leaf':
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102 raise error.NoCollections()
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104 node = LeafNode(nodeIdentifier, owner, config)
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105 self._nodes[nodeIdentifier] = node
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106
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107 return defer.succeed(None)
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109
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110 def deleteNode(self, nodeIdentifier):
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111 try:
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112 del self._nodes[nodeIdentifier]
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113 except KeyError:
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114 return defer.fail(error.NodeNotFound())
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116 return defer.succeed(None)
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117
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119 def getAffiliations(self, entity):
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120 entity = entity.userhost()
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121 return defer.succeed([(node.nodeIdentifier, node._affiliations[entity])
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122 for name, node in self._nodes.iteritems()
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123 if entity in node._affiliations])
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125
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126 def getSubscriptions(self, entity):
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127 subscriptions = []
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128 for node in self._nodes.itervalues():
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129 for subscriber, subscription in node._subscriptions.iteritems():
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130 subscriber = jid.internJID(subscriber)
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131 if subscriber.userhostJID() == entity.userhostJID():
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132 subscriptions.append(subscription)
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133
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134 return defer.succeed(subscriptions)
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135
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136
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137 def getDefaultConfiguration(self, nodeType):
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138 if nodeType == 'collection':
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139 raise error.NoCollections()
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140
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141 return self.defaultConfig[nodeType]
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144 class Node:
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146 implements(iidavoll.INode)
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148 def __init__(self, nodeIdentifier, owner, config):
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149 self.nodeIdentifier = nodeIdentifier
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150 self._affiliations = {owner.userhost(): 'owner'}
107
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151 self._subscriptions = {}
221
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152 self._config = copy.copy(config)
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153
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154
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155 def getType(self):
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156 return self.nodeType
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157
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158
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159 def getConfiguration(self):
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160 return self._config
171
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161
198
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162
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163 def getMetaData(self):
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164 config = copy.copy(self._config)
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165 config["pubsub#node_type"] = self.nodeType
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166 return config
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167
198
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168
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169 def setConfiguration(self, options):
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170 for option in options:
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171 if option in self._config:
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172 self._config[option] = options[option]
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173
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174 return defer.succeed(None)
171
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175
198
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176
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177 def getAffiliation(self, entity):
226
b7018ec56ee5 Always use the bare JID for affilitations.
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178 return defer.succeed(self._affiliations.get(entity.userhost()))
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179
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180
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181 def getSubscription(self, subscriber):
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182 try:
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183 subscription = self._subscriptions[subscriber.full()]
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184 except KeyError:
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185 return defer.succeed(None)
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186 else:
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187 return defer.succeed(subscription)
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188
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189
206
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190 def getSubscriptions(self, state=None):
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191 return defer.succeed(
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192 [subscription
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193 for subscription in self._subscriptions.itervalues()
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194 if state is None or subscription.state == state])
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195
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196
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197
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198 def addSubscription(self, subscriber, state, options):
120
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199 if self._subscriptions.get(subscriber.full()):
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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200 return defer.fail(error.SubscriptionExists())
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201
206
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202 subscription = Subscription(self.nodeIdentifier, subscriber, state,
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203 options)
120
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204 self._subscriptions[subscriber.full()] = subscription
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205 return defer.succeed(None)
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206
198
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207
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208 def removeSubscription(self, subscriber):
120
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209 try:
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210 del self._subscriptions[subscriber.full()]
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211 except KeyError:
171
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212 return defer.fail(error.NotSubscribed())
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213
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214 return defer.succeed(None)
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215
198
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216
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217 def isSubscribed(self, entity):
146
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218 for subscriber, subscription in self._subscriptions.iteritems():
148
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219 if jid.internJID(subscriber).userhost() == entity.userhost() and \
146
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220 subscription.state == 'subscribed':
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221 return defer.succeed(True)
171
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222
146
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223 return defer.succeed(False)
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224
198
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225
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226 def getAffiliations(self):
148
b03e5ad81173 Change all calls to jid.JID to jid.internJID to avoid redoing stringprep.
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227 affiliations = [(jid.internJID(entity), affiliation) for entity, affiliation
145
f393bccec4bc Add get_affiliations to Node class in storage facilities in preparation of
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228 in self._affiliations.iteritems()]
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229
f393bccec4bc Add get_affiliations to Node class in storage facilities in preparation of
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230 return defer.succeed(affiliations)
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231
171
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232
198
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233
202
77c61e2b8c75 Use `domish.Element`s to represent items, instead of serialized XML.
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234 class PublishedItem(object):
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235 """
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236 A published item.
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237
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238 This represent an item as it was published by an entity.
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239
77c61e2b8c75 Use `domish.Element`s to represent items, instead of serialized XML.
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diff changeset
240 @ivar element: The DOM representation of the item that was published.
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241 @type element: L{Element<twisted.words.xish.domish.Element>}
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242 @ivar publisher: The entity that published the item.
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243 @type publisher: L{JID<twisted.words.protocols.jabber.jid.JID>}
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244 """
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245
77c61e2b8c75 Use `domish.Element`s to represent items, instead of serialized XML.
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246 def __init__(self, element, publisher):
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247 self.element = element
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248 self.publisher = publisher
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249
77c61e2b8c75 Use `domish.Element`s to represent items, instead of serialized XML.
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250
77c61e2b8c75 Use `domish.Element`s to represent items, instead of serialized XML.
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251
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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252 class LeafNode(Node):
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253
274a45d2a5ab Implement root collection that includes all leaf nodes.
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254 implements(iidavoll.ILeafNode)
107
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255
198
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256 nodeType = 'leaf'
107
d252d793f0ed Initial revision.
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257
206
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258 def __init__(self, nodeIdentifier, owner, config):
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259 Node.__init__(self, nodeIdentifier, owner, config)
107
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260 self._items = {}
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261 self._itemlist = []
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262
198
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263
265
89493845d3dd fix the method signatures of iidavoll.ILeafNode and memory_storage.LeafNode according to pgsql_storage.LeafNode
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parents: 263
diff changeset
264 def storeItems(self, item_data, publisher):
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parents: 263
diff changeset
265 for access_model, item_config, element in item_data:
202
77c61e2b8c75 Use `domish.Element`s to represent items, instead of serialized XML.
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266 item = PublishedItem(element, publisher)
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267 itemIdentifier = element["id"]
198
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268 if itemIdentifier in self._items:
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269 self._itemlist.remove(self._items[itemIdentifier])
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270 self._items[itemIdentifier] = item
107
d252d793f0ed Initial revision.
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271 self._itemlist.append(item)
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272
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273 return defer.succeed(None)
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parents:
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274
198
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diff changeset
275
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diff changeset
276 def removeItems(self, itemIdentifiers):
107
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277 deleted = []
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278
198
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diff changeset
279 for itemIdentifier in itemIdentifiers:
142
812300cdbc22 Changed behaviour of retraction of items so that only the actually deleted
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parents: 139
diff changeset
280 try:
198
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diff changeset
281 item = self._items[itemIdentifier]
142
812300cdbc22 Changed behaviour of retraction of items so that only the actually deleted
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parents: 139
diff changeset
282 except KeyError:
812300cdbc22 Changed behaviour of retraction of items so that only the actually deleted
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parents: 139
diff changeset
283 pass
812300cdbc22 Changed behaviour of retraction of items so that only the actually deleted
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parents: 139
diff changeset
284 else:
812300cdbc22 Changed behaviour of retraction of items so that only the actually deleted
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diff changeset
285 self._itemlist.remove(item)
198
e404775b12df Change naming and spacing conventions to match Twisted's.
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diff changeset
286 del self._items[itemIdentifier]
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diff changeset
287 deleted.append(itemIdentifier)
171
bc269696ef42 Reply with the correct error condition on subscription when not subscribed.
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diff changeset
288
142
812300cdbc22 Changed behaviour of retraction of items so that only the actually deleted
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diff changeset
289 return defer.succeed(deleted)
107
d252d793f0ed Initial revision.
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parents:
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290
198
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diff changeset
291
265
89493845d3dd fix the method signatures of iidavoll.ILeafNode and memory_storage.LeafNode according to pgsql_storage.LeafNode
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parents: 263
diff changeset
292 def getItems(self, authorized_groups, unrestricted, maxItems=None):
297
4115999d85e9 fixes behavior when maxItems is 0
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parents: 283
diff changeset
293 if maxItems is not None:
202
77c61e2b8c75 Use `domish.Element`s to represent items, instead of serialized XML.
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parents: 198
diff changeset
294 itemList = self._itemlist[-maxItems:]
107
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
295 else:
202
77c61e2b8c75 Use `domish.Element`s to represent items, instead of serialized XML.
Ralph Meijer <ralphm@ik.nu>
parents: 198
diff changeset
296 itemList = self._itemlist
77c61e2b8c75 Use `domish.Element`s to represent items, instead of serialized XML.
Ralph Meijer <ralphm@ik.nu>
parents: 198
diff changeset
297 return defer.succeed([item.element for item in itemList])
171
bc269696ef42 Reply with the correct error condition on subscription when not subscribed.
Ralph Meijer <ralphm@ik.nu>
parents: 167
diff changeset
298
198
e404775b12df Change naming and spacing conventions to match Twisted's.
Ralph Meijer <ralphm@ik.nu>
parents: 180
diff changeset
299
265
89493845d3dd fix the method signatures of iidavoll.ILeafNode and memory_storage.LeafNode according to pgsql_storage.LeafNode
souliane <souliane@mailoo.org>
parents: 263
diff changeset
300 def getItemsById(self, authorized_groups, unrestricted, itemIdentifiers):
107
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
301 items = []
198
e404775b12df Change naming and spacing conventions to match Twisted's.
Ralph Meijer <ralphm@ik.nu>
parents: 180
diff changeset
302 for itemIdentifier in itemIdentifiers:
107
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
303 try:
198
e404775b12df Change naming and spacing conventions to match Twisted's.
Ralph Meijer <ralphm@ik.nu>
parents: 180
diff changeset
304 item = self._items[itemIdentifier]
107
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
305 except KeyError:
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
306 pass
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
307 else:
202
77c61e2b8c75 Use `domish.Element`s to represent items, instead of serialized XML.
Ralph Meijer <ralphm@ik.nu>
parents: 198
diff changeset
308 items.append(item.element)
107
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
309 return defer.succeed(items)
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
310
198
e404775b12df Change naming and spacing conventions to match Twisted's.
Ralph Meijer <ralphm@ik.nu>
parents: 180
diff changeset
311
107
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
312 def purge(self):
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
313 self._items = {}
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
314 self._itemlist = []
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
315
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
316 return defer.succeed(None)
d252d793f0ed Initial revision.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
317
171
bc269696ef42 Reply with the correct error condition on subscription when not subscribed.
Ralph Meijer <ralphm@ik.nu>
parents: 167
diff changeset
318
263
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
319 def filterItemsWithPublisher(self, itemIdentifiers, requestor):
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
320 filteredItems = []
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
321 for itemIdentifier in itemIdentifiers:
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
322 try:
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
323 if self._items[itemIdentifier].publisher.userhost() == requestor.userhost():
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
324 filteredItems.append(self.items[itemIdentifier])
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
325 except KeyError, AttributeError:
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
326 pass
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
327 return defer.succeed(filteredItems)
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
328
9dfd3890e646 added the constant FLAG_RETRACT_ALLOW_PUBLISHER to allow a publisher to retract an item he has published in a node of "open" publish model.
souliane <souliane@mailoo.org>
parents: 255
diff changeset
329
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
Ralph Meijer <ralphm@ik.nu>
parents: 204
diff changeset
330 class CollectionNode(Node):
274a45d2a5ab Implement root collection that includes all leaf nodes.
Ralph Meijer <ralphm@ik.nu>
parents: 204
diff changeset
331 nodeType = 'collection'
204
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
332
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
333
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
334
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
335 class GatewayStorage(object):
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
336 """
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
337 Memory based storage facility for the XMPP-HTTP gateway.
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
338 """
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
339
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
340 def __init__(self):
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
341 self.callbacks = {}
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
342
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
343
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
344 def addCallback(self, service, nodeIdentifier, callback):
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
345 try:
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
346 callbacks = self.callbacks[service, nodeIdentifier]
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
347 except KeyError:
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
348 callbacks = set([callback])
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
349 self.callbacks[service, nodeIdentifier] = callbacks
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
350 else:
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
351 callbacks.add(callback)
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
352 pass
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
353
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
354 return defer.succeed(None)
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
355
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
356
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
357 def removeCallback(self, service, nodeIdentifier, callback):
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
358 try:
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
359 callbacks = self.callbacks[service, nodeIdentifier]
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
360 callbacks.remove(callback)
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
361 except KeyError:
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
362 return defer.fail(error.NotSubscribed())
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
363 else:
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
364 if not callbacks:
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
365 del self.callbacks[service, nodeIdentifier]
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
366
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
367 return defer.succeed(not callbacks)
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
368
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
369
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
370 def getCallbacks(self, service, nodeIdentifier):
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
371 try:
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
372 callbacks = self.callbacks[service, nodeIdentifier]
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
373 except KeyError:
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
374 return defer.fail(error.NoCallbacks())
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
375 else:
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
376 return defer.succeed(callbacks)
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
377
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
378
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
379 def hasCallbacks(self, service, nodeIdentifier):
b4bf0a5ce50d Implement storage facilities for the HTTP gateway.
Ralph Meijer <ralphm@ik.nu>
parents: 202
diff changeset
380 return defer.succeed((service, nodeIdentifier) in self.callbacks)