annotate sat_pubsub/iidavoll.py @ 439:36c9fb677f1d

removed `sat_tmp.twisted` patches + update minimum Twisted version: - `sat_tmp` patches are not needed anymore and cause trouble with latest Twisted (21.02) - update minimum to `20.3.0` which is the first one to support Python 3.8
author Goffi <goffi@goffi.org>
date Thu, 18 Mar 2021 22:23:37 +0100
parents ccb2a22ea0fc
children 074037832daf
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ccb2a22ea0fc Python 3 port:
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1 #!/usr/bin/env python3
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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) 2012-2019 Jérôme Poisson
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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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12
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13 # This program is distributed in the hope that it will be useful,
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 # GNU Affero General Public License for more details.
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17
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18 # You should have received a copy of the GNU 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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32
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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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43
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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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53 """
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54 Interfaces for idavoll.
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55 """
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56
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57 from zope.interface import Attribute, Interface
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58
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59 class IBackendService(Interface):
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60 """ Interface to a backend service of a pubsub service. """
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63 def __init__(storage):
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64 """
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65 @param storage: Object providing L{IStorage}.
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66 """
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69 def supportsPublisherAffiliation():
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70 """ Reports if the backend supports the publisher affiliation.
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71
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72 @rtype: C{bool}
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73 """
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76 def supportsOutcastAffiliation():
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77 """ Reports if the backend supports the publisher affiliation.
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78
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79 @rtype: C{bool}
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80 """
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81
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82
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83 def supportsPersistentItems():
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84 """ Reports if the backend supports persistent items.
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85
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86 @rtype: C{bool}
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87 """
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89
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90 def getNodeType(nodeIdentifier):
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91 """ Return type of a node.
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92
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93 @return: a deferred that returns either 'leaf' or 'collection'
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94 """
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97 def getNodes():
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98 """ Returns list of all nodes.
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99
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100 @return: a deferred that returns a C{list} of node ids.
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101 """
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102
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103
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104 def getNodeMetaData(nodeIdentifier):
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105 """ Return meta data for a node.
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106
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107 @return: a deferred that returns a C{list} of C{dict}s with the
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108 metadata.
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109 """
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111
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112 def createNode(nodeIdentifier, requestor):
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113 """ Create a node.
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114
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115 @return: a deferred that fires when the node has been created.
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116 """
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118
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119 def registerPreDelete(preDeleteFn):
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120 """ Register a callback that is called just before a node deletion.
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122 The function C{preDeletedFn} is added to a list of functions to be
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123 called just before deletion of a node. The callback C{preDeleteFn} is
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124 called with the C{nodeIdentifier} that is about to be deleted and
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125 should return a deferred that returns a list of deferreds that are to
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126 be fired after deletion. The backend collects the lists from all these
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127 callbacks before actually deleting the node in question. After
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128 deletion all collected deferreds are fired to do post-processing.
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130 The idea is that you want to be able to collect data from the node
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131 before deleting it, for example to get a list of subscribers that have
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132 to be notified after the node has been deleted. To do this,
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133 C{preDeleteFn} fetches the subscriber list and passes this list to a
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134 callback attached to a deferred that it sets up. This deferred is
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135 returned in the list of deferreds.
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136 """
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137
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138
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139 def deleteNode(nodeIdentifier, requestor):
167
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140 """ Delete a node.
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141
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142 @return: a deferred that fires when the node has been deleted.
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143 """
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144
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145
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146 def purgeNode(nodeIdentifier, requestor):
167
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147 """ Removes all items in node from persistent storage """
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148
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149
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150 def subscribe(nodeIdentifier, subscriber, requestor):
167
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151 """ Request the subscription of an entity to a pubsub node.
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152
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153 Depending on the node's configuration and possible business rules, the
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154 C{subscriber} is added to the list of subscriptions of the node with id
198
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155 C{nodeIdentifier}. The C{subscriber} might be different from the
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156 C{requestor}, and if the C{requestor} is not allowed to subscribe this
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157 entity an exception should be raised.
167
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158
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159 @return: a deferred that returns the subscription state
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160 """
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161
198
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162
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163 def unsubscribe(nodeIdentifier, subscriber, requestor):
167
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164 """ Cancel the subscription of an entity to a pubsub node.
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165
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166 The subscription of C{subscriber} is removed from the list of
198
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167 subscriptions of the node with id C{nodeIdentifier}. If the
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168 C{requestor} is not allowed to unsubscribe C{subscriber}, an an
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169 exception should be raised.
167
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170
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171 @return: a deferred that fires when unsubscription is complete.
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172 """
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173
198
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174
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175 def getSubscribers(nodeIdentifier):
167
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176 """ Get node subscriber list.
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177
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178 @return: a deferred that fires with the list of subscribers.
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179 """
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180
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181
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182 def getSubscriptions(entity):
167
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183 """ Report the list of current subscriptions with this pubsub service.
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184
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185 Report the list of the current subscriptions with all nodes within this
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186 pubsub service, for the C{entity}.
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187
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188 @return: a deferred that returns the list of all current subscriptions
198
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189 as tuples C{(nodeIdentifier, subscriber, subscription)}.
167
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190 """
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191
198
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192
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193 def getAffiliations(entity):
167
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194 """ Report the list of current affiliations with this pubsub service.
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195
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196 Report the list of the current affiliations with all nodes within this
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197 pubsub service, for the C{entity}.
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198
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199 @return: a deferred that returns the list of all current affiliations
198
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200 as tuples C{(nodeIdentifier, affiliation)}.
167
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201 """
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202
198
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203
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204 def publish(nodeIdentifier, items, requestor):
167
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205 """ Publish items to a pubsub node.
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206
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207 @return: a deferred that fires when the items have been published.
173
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208 @rtype: L{Deferred<twisted.internet.defer.Deferred>}
167
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209 """
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210
198
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211
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212 def registerNotifier(observerfn, *args, **kwargs):
167
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213 """ Register callback which is called for notification. """
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214
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215
206
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216 def getNotifications(nodeIdentifier, items):
167
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217 """
206
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218 Get notification list.
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219
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220 This method is called to discover which entities should receive
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221 notifications for the given items that have just been published to the
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222 given node.
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223
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224 The notification list contains tuples (subscriber, subscriptions,
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225 items) to result in one notification per tuple: the given subscriptions
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226 yielded the given items to be notified to this subscriber. This
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227 structure is needed allow for letting the subscriber know which
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228 subscriptions yielded which notifications, while catering for
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229 collection nodes and content-based subscriptions.
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230
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231 To minimize the amount of notifications per entity, implementers
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232 should take care that if all items in C{items} were yielded
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233 by the same set of subscriptions, exactly one tuple is for this
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234 subscriber is returned, so that the subscriber would get exactly one
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235 notification. Alternatively, one tuple per subscription combination.
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236
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237 @param nodeIdentifier: The identifier of the node the items were
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238 published to.
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239 @type nodeIdentifier: C{unicode}.
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240 @param items: The list of published items as
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241 L{Element<twisted.words.xish.domish.Element>}s.
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242 @type items: C{list}
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243 @return: The notification list as tuples of
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244 (L{JID<twisted.words.protocols.jabber.jid.JID>},
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245 C{list} of L{Subscription<wokkel.pubsub.Subscription>},
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246 C{list} of L{Element<twisted.words.xish.domish.Element>}.
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247 @rtype: C{list}
167
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248 """
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249
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250
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251 def getItems(nodeIdentifier, requestor, maxItems=None, itemIdentifiers=[]):
167
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252 """ Retrieve items from persistent storage
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253
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254 If C{maxItems} is given, return the C{maxItems} last published
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255 items, else if C{itemIdentifiers} is not empty, return the items
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256 requested. If neither is given, return all items.
167
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257
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258 @return: a deferred that returns the requested items
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259 """
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260
198
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261
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262 def retractItem(nodeIdentifier, itemIdentifier, requestor):
167
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263 """ Removes item in node from persistent storage """
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264
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265
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266
167
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267 class IStorage(Interface):
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268 """
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269 Storage interface.
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270 """
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271
198
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272
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273 def getNode(nodeIdentifier):
167
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274 """
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275 Get Node.
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276
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277 @param nodeIdentifier: NodeID of the desired node.
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278 @type nodeIdentifier: C{str}
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279 @return: deferred that returns a L{INode} providing object.
167
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280 """
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281
198
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282
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283 def getNodeIds():
167
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284 """
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285 Return all NodeIDs.
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286
206
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287 @return: deferred that returns a list of NodeIDs (C{unicode}).
167
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288 """
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289
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290
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291 def createNode(nodeIdentifier, owner, config):
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292 """
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293 Create new node.
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294
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295 The implementation should make sure, the passed owner JID is stripped
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296 of the resource (e.g. using C{owner.userhostJID()}). The passed config
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297 is expected to have values for the fields returned by
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298 L{getDefaultConfiguration}, as well as a value for
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299 C{'pubsub#node_type'}.
167
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300
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301 @param nodeIdentifier: NodeID of the new node.
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302 @type nodeIdentifier: C{unicode}
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303 @param owner: JID of the new nodes's owner.
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304 @type owner: L{JID<twisted.words.protocols.jabber.jid.JID>}
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305 @param config: Node configuration.
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306 @type config: C{dict}
167
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307 @return: deferred that fires on creation.
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308 """
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309
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310
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311 def deleteNode(nodeIdentifier):
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312 """
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313 Delete a node.
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314
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315 @param nodeIdentifier: NodeID of the new node.
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316 @type nodeIdentifier: C{unicode}
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317 @return: deferred that fires on deletion.
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318 """
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319
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320
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321 def getAffiliations(entity):
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322 """
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323 Get all affiliations for entity.
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324
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325 The implementation should make sure, the passed owner JID is stripped
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326 of the resource (e.g. using C{owner.userhostJID()}).
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327
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328 @param entity: JID of the entity.
206
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329 @type entity: L{JID<twisted.words.protocols.jabber.jid.JID>}
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330 @return: deferred that returns a C{list} of tuples of the form
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331 C{(nodeIdentifier, affiliation)}, where C{nodeIdentifier} is
206
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332 of the type L{unicode} and C{affiliation} is one of
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333 C{'owner'}, C{'publisher'} and C{'outcast'}.
167
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334 """
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335
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336
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337 def getSubscriptions(entity):
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338 """
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339 Get all subscriptions for an entity.
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340
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341 The implementation should make sure, the passed owner JID is stripped
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342 of the resource (e.g. using C{owner.userhostJID()}).
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343
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344 @param entity: JID of the entity.
206
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345 @type entity: L{JID<twisted.words.protocols.jabber.jid.JID>}
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346 @return: deferred that returns a C{list} of tuples of the form
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347 C{(nodeIdentifier, subscriber, state)}, where
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348 C{nodeIdentifier} is of the type C{unicode}, C{subscriber} of
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349 the type J{JID<twisted.words.protocols.jabber.jid.JID>}, and
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350 C{state} is C{'subscribed'}, C{'pending'} or
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351 C{'unconfigured'}.
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352 """
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353
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354
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355 def getDefaultConfiguration(nodeType):
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356 """
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357 Get the default configuration for the given node type.
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358
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359 @param nodeType: Either C{'leaf'} or C{'collection'}.
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360 @type nodeType: C{str}
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361 @return: The default configuration.
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362 @rtype: C{dict}.
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363 @raises: L{idavoll.error.NoCollections} if collections are not
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364 supported.
167
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365 """
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366
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367
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368
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369 class INode(Interface):
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370 """
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371 Interface to the class of objects that represent nodes.
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372 """
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373
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374 nodeType = Attribute("""The type of this node. One of {'leaf'},
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375 {'collection'}.""")
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376 nodeIdentifier = Attribute("""The node identifer of this node""")
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377
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378
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379 def getType():
167
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380 """
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381 Get node's type.
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382
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383 @return: C{'leaf'} or C{'collection'}.
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384 """
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385
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386
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387 def getConfiguration():
167
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388 """
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389 Get node's configuration.
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390
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391 The configuration must at least have two options:
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392 C{pubsub#persist_items}, and C{pubsub#deliver_payloads}.
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393
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394 @return: C{dict} of configuration options.
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395 """
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396
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397
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398 def getMetaData():
167
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399 """
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400 Get node's meta data.
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401
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402 The meta data must be a superset of the configuration options, and
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403 also at least should have a C{pubsub#node_type} entry.
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404
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405 @return: C{dict} of meta data.
167
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406 """
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407
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408
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409 def setConfiguration(options):
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parents:
diff changeset
410 """
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parents:
diff changeset
411 Set node's configuration.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
412
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413 The elements of {options} will set the new values for those
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents:
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414 configuration items. This means that only changing items have to
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
415 be given.
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Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
416
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
417 @param options: a dictionary of configuration options.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
418 @returns: a deferred that fires upon success.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
419 """
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parents:
diff changeset
420
198
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diff changeset
421
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diff changeset
422 def getAffiliation(entity):
167
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parents:
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423 """
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Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
424 Get affiliation of entity with this node.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
425
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents:
diff changeset
426 @param entity: JID of entity.
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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diff changeset
427 @type entity: L{JID<twisted.words.protocols.jabber.jid.JID>}
167
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Ralph Meijer <ralphm@ik.nu>
parents:
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428 @return: deferred that returns C{'owner'}, C{'publisher'}, C{'outcast'}
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
429 or C{None}.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
430 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents:
diff changeset
431
198
e404775b12df Change naming and spacing conventions to match Twisted's.
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diff changeset
432
e404775b12df Change naming and spacing conventions to match Twisted's.
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diff changeset
433 def getSubscription(subscriber):
167
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parents:
diff changeset
434 """
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Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
435 Get subscription to this node of subscriber.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
436
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
437 @param subscriber: JID of the new subscriptions' entity.
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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diff changeset
438 @type subscriber: L{JID<twisted.words.protocols.jabber.jid.JID>}
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
439 @return: deferred that returns the subscription state (C{'subscribed'},
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
440 C{'pending'} or C{None}).
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
441 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents:
diff changeset
442
198
e404775b12df Change naming and spacing conventions to match Twisted's.
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parents: 189
diff changeset
443
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
444 def getSubscriptions(state=None):
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
445 """
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
446 Get list of subscriptions to this node.
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
447
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
448 The optional C{state} argument filters the subscriptions to their
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
449 state.
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
450
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
451 @param state: Subscription state filter. One of C{'subscribed'},
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
452 C{'pending'}, C{'unconfigured'}.
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
453 @type state: C{str}
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
454 @return: a deferred that returns a C{list} of
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
455 L{wokkel.pubsub.Subscription}s.
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
456 """
274a45d2a5ab Implement root collection that includes all leaf nodes.
Ralph Meijer <ralphm@ik.nu>
parents: 204
diff changeset
457
274a45d2a5ab Implement root collection that includes all leaf nodes.
Ralph Meijer <ralphm@ik.nu>
parents: 204
diff changeset
458
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
459 def addSubscription(subscriber, state, config):
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents:
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460 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
461 Add new subscription to this node with given state.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
462
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
463 @param subscriber: JID of the new subscriptions' entity.
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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diff changeset
464 @type subscriber: L{JID<twisted.words.protocols.jabber.jid.JID>}
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
465 @param state: C{'subscribed'} or C{'pending'}
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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diff changeset
466 @type state: C{str}
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
467 @param config: Subscription configuration.
274a45d2a5ab Implement root collection that includes all leaf nodes.
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diff changeset
468 @param config: C{dict}
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
469 @return: deferred that fires on subscription.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
470 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
471
198
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diff changeset
472
e404775b12df Change naming and spacing conventions to match Twisted's.
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diff changeset
473 def removeSubscription(subscriber):
167
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Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
474 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
475 Remove subscription to this node.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
476
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
477 @param subscriber: JID of the subscriptions' entity.
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
478 @type subscriber: L{JID<twisted.words.protocols.jabber.jid.JID>}
167
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Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
479 @return: deferred that fires on removal.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
480 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
481
198
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parents: 189
diff changeset
482
e404775b12df Change naming and spacing conventions to match Twisted's.
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diff changeset
483 def isSubscribed(entity):
167
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Ralph Meijer <ralphm@ik.nu>
parents:
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484 """
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Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
485 Returns whether entity has any subscription to this node.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
486
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
487 Only returns C{True} when the subscription state (if present) is
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
488 C{'subscribed'} for any subscription that matches the bare JID.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
489
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
490 @param subscriber: bare JID of the subscriptions' entity.
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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diff changeset
491 @type subscriber: L{JID<twisted.words.protocols.jabber.jid.JID>}
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
492 @return: deferred that returns a C{bool}.
167
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parents:
diff changeset
493 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
494
198
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parents: 189
diff changeset
495
e404775b12df Change naming and spacing conventions to match Twisted's.
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diff changeset
496 def getAffiliations():
167
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Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
497 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
498 Get affiliations of entities with this node.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
499
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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diff changeset
500 @return: deferred that returns a C{list} of tuples (jid, affiliation),
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
501 where jid is a L(JID<twisted.words.protocols.jabber.jid.JID>)
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
502 and affiliation is one of C{'owner'},
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
503 C{'publisher'}, C{'outcast'}.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
504 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
505
198
e404775b12df Change naming and spacing conventions to match Twisted's.
Ralph Meijer <ralphm@ik.nu>
parents: 189
diff changeset
506
e404775b12df Change naming and spacing conventions to match Twisted's.
Ralph Meijer <ralphm@ik.nu>
parents: 189
diff changeset
507
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
508 class ILeafNode(Interface):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
509 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
510 Interface to the class of objects that represent leaf nodes.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
511 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
512
198
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parents: 189
diff changeset
513 def storeItems(items, publisher):
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
514 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
515 Store items in persistent storage for later retrieval.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
516
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
517 @param items: The list of items to be stored. Each item is the
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
518 L{domish} representation of the XML fragment as defined
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
519 for C{<item/>} in the
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
520 C{http://jabber.org/protocol/pubsub} namespace.
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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diff changeset
521 @type items: C{list} of {domish.Element}
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
522 @param publisher: JID of the publishing entity.
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
523 @type publisher: L{JID<twisted.words.protocols.jabber.jid.JID>}
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
524 @return: deferred that fires upon success.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
525 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
526
198
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Ralph Meijer <ralphm@ik.nu>
parents: 189
diff changeset
527
e404775b12df Change naming and spacing conventions to match Twisted's.
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parents: 189
diff changeset
528 def removeItems(itemIdentifiers):
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
529 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
530 Remove items by id.
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents:
diff changeset
531
206
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
532 @param itemIdentifiers: C{list} of item ids.
274a45d2a5ab Implement root collection that includes all leaf nodes.
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parents: 204
diff changeset
533 @return: deferred that fires with a C{list} of ids of the items that
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
534 were deleted
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
535 """
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
536
198
e404775b12df Change naming and spacing conventions to match Twisted's.
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parents: 189
diff changeset
537
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
538 def getItems(authorized_groups, unrestricted, maxItems=None):
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
539 """ Get all authorised items
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
540 If C{maxItems} is not given, all authorised items in the node are returned,
198
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Ralph Meijer <ralphm@ik.nu>
parents: 189
diff changeset
541 just like C{getItemsById}. Otherwise, C{maxItems} limits
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents:
diff changeset
542 the returned items to a maximum of that number of most recently
265
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543 published and authorised items.
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544
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545 @param authorized_groups: we want to get items that these groups can access
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546 @param unrestricted: if true, don't check permissions (i.e.: get all items)
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547 @param maxItems: if given, a natural number (>0) that limits the
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548 returned number of items.
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549 @return: deferred that fires a C{list} of (item, access_model, id)
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550 if unrestricted is True, else a C{list} of items.
167
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551 """
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552
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553
278
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554 def countItems(authorized_groups, unrestricted):
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555 """ Count the accessible items.
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556
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557 @param authorized_groups: we want to get items that these groups can access.
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558 @param unrestricted: if true, don't check permissions (i.e.: get all items).
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559 @return: deferred that fires a C{int}.
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560 """
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561
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562
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563 def getIndex(authorized_groups, unrestricted, item):
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564 """ Retrieve the index of the given item within the accessible window.
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565
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566 @param authorized_groups: we want to get items that these groups can access.
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567 @param unrestricted: if true, don't check permissions (i.e.: get all items).
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568 @param item: item identifier.
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569 @return: deferred that fires a C{int}.
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570 """
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571
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572 def getItemsById(authorized_groups, unrestricted, itemIdentifiers):
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573 """
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574 Get items by item id.
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575
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576 Each item in the returned list is a unicode string that
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577 represent the XML of the item as it was published, including the
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578 item wrapper with item id.
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579
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580 @param authorized_groups: we want to get items that these groups can access
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581 @param unrestricted: if true, don't check permissions
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582 @param itemIdentifiers: C{list} of item ids.
265
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583 @return: deferred that fires a C{list} of (item, access_model, id)
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584 if unrestricted is True, else a C{list} of items.
167
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585 """
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586
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diff changeset
587
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588 def purge():
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589 """
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590 Purge node of all items in persistent storage.
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591
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592 @return: deferred that fires when the node has been purged.
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593 """
204
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594
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diff changeset
595
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596 def filterItemsWithPublisher(itemIdentifiers, requestor):
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597 """
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598 Filter the given items by checking the items publisher against the requestor.
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599
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600 @param itemIdentifiers: C{list} of item ids.
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601 @param requestor: JID of the requestor.
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602 @type requestor: L{JID<twisted.words.protocols.jabber.jid.JID>}
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603 @return: deferred that fires with a C{list} of item identifiers.
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.
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parents: 255
diff changeset
604 """
204
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605
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606 class IGatewayStorage(Interface):
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607
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608 def addCallback(service, nodeIdentifier, callback):
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609 """
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610 Register a callback URI.
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611
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612 The registered HTTP callback URI will have an Atom Entry documented
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613 POSTed to it upon receiving a notification for the given pubsub node.
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614
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615 @param service: The XMPP entity that holds the node.
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616 @type service: L{JID<twisted.words.protocols.jabber.jid.JID>}
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617 @param nodeIdentifier: The identifier of the publish-subscribe node.
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618 @type nodeIdentifier: C{unicode}.
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619 @param callback: The callback URI to be registered.
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620 @type callback: C{str}.
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621 @rtype: L{Deferred<twisted.internet.defer.Deferred>}
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622 """
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623
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624 def removeCallback(service, nodeIdentifier, callback):
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625 """
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626 Remove a registered callback URI.
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diff changeset
627
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628 The returned deferred will fire with a boolean that signals wether or
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diff changeset
629 not this was the last callback unregistered for this node.
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diff changeset
630
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631 @param service: The XMPP entity that holds the node.
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632 @type service: L{JID<twisted.words.protocols.jabber.jid.JID>}
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633 @param nodeIdentifier: The identifier of the publish-subscribe node.
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634 @type nodeIdentifier: C{unicode}.
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635 @param callback: The callback URI to be unregistered.
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636 @type callback: C{str}.
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637 @rtype: L{Deferred<twisted.internet.defer.Deferred>}
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638 """
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639
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640 def getCallbacks(service, nodeIdentifier):
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641 """
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642 Get the callbacks registered for this node.
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643
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644 Returns a deferred that fires with the set of HTTP callback URIs
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645 registered for this node.
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646
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647 @param service: The XMPP entity that holds the node.
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648 @type service: L{JID<twisted.words.protocols.jabber.jid.JID>}
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649 @param nodeIdentifier: The identifier of the publish-subscribe node.
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650 @type nodeIdentifier: C{unicode}.
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651 @rtype: L{Deferred<twisted.internet.defer.Deferred>}
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652 """
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653
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654
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655 def hasCallbacks(service, nodeIdentifier):
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656 """
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657 Return wether there are callbacks registered for a node.
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diff changeset
658
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659 @param service: The XMPP entity that holds the node.
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diff changeset
660 @type service: L{JID<twisted.words.protocols.jabber.jid.JID>}
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661 @param nodeIdentifier: The identifier of the publish-subscribe node.
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662 @type nodeIdentifier: C{unicode}.
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663 @returns: Deferred that fires with a boolean.
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664 @rtype: L{Deferred<twisted.internet.defer.Deferred>}
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665 """