annotate idavoll/backend.py @ 194:5974e718f395

Check in missing file, also part of Idavoll 0.7.3.
author Ralph Meijer <ralphm@ik.nu>
date Fri, 30 May 2008 10:05:23 +0000
parents c21b986cff30
children 00a6dbfbee42
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1 # -*- test-case-name: idavoll.test.test_backend -*-
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2 #
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3 # Copyright (c) 2003-2008 Ralph Meijer
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4 # See LICENSE for details.
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5
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6 import uuid
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7
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8 from zope.interface import implements
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9
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10 from twisted.application import service
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11 from twisted.python import components
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12 from twisted.internet import defer, reactor
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13 from twisted.words.protocols.jabber.error import StanzaError
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14 from twisted.words.xish import domish, utility
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15
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16 from wokkel.iwokkel import IDisco, IPubSubService
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17 from wokkel.pubsub import PubSubService, PubSubError
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18
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19 from idavoll import error, iidavoll
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20 from idavoll.iidavoll import IBackendService
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21
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22 def _get_affiliation(node, entity):
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23 d = node.get_affiliation(entity)
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24 d.addCallback(lambda affiliation: (node, affiliation))
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25 return d
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28 class BackendService(service.Service, utility.EventDispatcher):
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30 implements(iidavoll.IBackendService)
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31
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32 options = {"pubsub#persist_items":
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33 {"type": "boolean",
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34 "label": "Persist items to storage"},
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35 "pubsub#deliver_payloads":
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36 {"type": "boolean",
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37 "label": "Deliver payloads with event notifications"},
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38 "pubsub#send_last_published_item":
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39 {"type": "list-single",
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40 "label": "When to send the last published item",
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41 "options": {
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42 "never": "Never",
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43 "on_sub": "When a new subscription is processed",
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44 }
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45 },
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46 }
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48 default_config = {"pubsub#persist_items": True,
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49 "pubsub#deliver_payloads": True,
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50 "pubsub#send_last_published_item": 'on_sub',
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51 }
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53 def __init__(self, storage):
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54 utility.EventDispatcher.__init__(self)
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55 self.storage = storage
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56 self._callback_list = []
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57
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58 def supports_publisher_affiliation(self):
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59 return True
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60
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61 def supports_outcast_affiliation(self):
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62 return True
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63
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64 def supports_persistent_items(self):
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65 return True
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67 def get_node_type(self, node_id):
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68 d = self.storage.get_node(node_id)
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69 d.addCallback(lambda node: node.get_type())
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70 return d
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71
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72 def get_nodes(self):
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73 return self.storage.get_node_ids()
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74
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75 def get_node_meta_data(self, node_id):
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76 d = self.storage.get_node(node_id)
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77 d.addCallback(lambda node: node.get_meta_data())
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78 d.addCallback(self._make_meta_data)
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79 return d
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80
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81 def _make_meta_data(self, meta_data):
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82 options = []
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83 for key, value in meta_data.iteritems():
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84 if self.options.has_key(key):
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85 option = {"var": key}
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86 option.update(self.options[key])
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87 option["value"] = value
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88 options.append(option)
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89
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90 return options
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91
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92 def _check_auth(self, node, requestor):
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93 def check(affiliation, node):
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94 if affiliation not in ['owner', 'publisher']:
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95 raise error.Forbidden()
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96 return node
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97
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98 d = node.get_affiliation(requestor)
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99 d.addCallback(check, node)
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100 return d
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101
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102 def publish(self, node_id, items, requestor):
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103 d = self.storage.get_node(node_id)
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104 d.addCallback(self._check_auth, requestor)
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105 d.addCallback(self._do_publish, items, requestor)
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106 return d
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107
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108 def _do_publish(self, node, items, requestor):
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109 configuration = node.get_configuration()
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110 persist_items = configuration["pubsub#persist_items"]
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111 deliver_payloads = configuration["pubsub#deliver_payloads"]
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112
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113 if items and not persist_items and not deliver_payloads:
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114 raise error.ItemForbidden()
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115 elif not items and (persist_items or deliver_payloads):
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116 raise error.ItemRequired()
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117
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118 if persist_items or deliver_payloads:
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119 for item in items:
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120 if not item.getAttribute("id"):
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121 item["id"] = str(uuid.uuid4())
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122
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123 if persist_items:
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124 d = node.store_items(items, requestor)
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125 else:
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126 d = defer.succeed(None)
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127
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128 d.addCallback(self._do_notify, node.id, items, deliver_payloads)
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129 return d
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130
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131 def _do_notify(self, result, node_id, items, deliver_payloads):
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132 if items and not deliver_payloads:
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133 for item in items:
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134 item.children = []
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135
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136 self.dispatch({'items': items, 'node_id': node_id},
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137 '//event/pubsub/notify')
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138
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139 def get_notification_list(self, node_id, items):
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140 d = self.storage.get_node(node_id)
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141 d.addCallback(lambda node: node.get_subscribers())
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142 d.addCallback(self._magic_filter, node_id, items)
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143 return d
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144
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145 def _magic_filter(self, subscribers, node_id, items):
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146 list = []
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147 for subscriber in subscribers:
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148 list.append((subscriber, items))
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149 return list
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150
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151 def register_notifier(self, observerfn, *args, **kwargs):
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152 self.addObserver('//event/pubsub/notify', observerfn, *args, **kwargs)
29
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153
167
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154 def subscribe(self, node_id, subscriber, requestor):
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155 subscriber_entity = subscriber.userhostJID()
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156 if subscriber_entity != requestor:
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157 return defer.fail(error.Forbidden())
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158
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159 d = self.storage.get_node(node_id)
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160 d.addCallback(_get_affiliation, subscriber_entity)
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161 d.addCallback(self._do_subscribe, subscriber)
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162 return d
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163
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164 def _do_subscribe(self, result, subscriber):
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165 node, affiliation = result
29
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166
167
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167 if affiliation == 'outcast':
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168 raise error.Forbidden()
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169
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170 d = node.add_subscription(subscriber, 'subscribed')
178
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171 d.addCallback(lambda _: self._send_last_published(node, subscriber))
167
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172 d.addCallback(lambda _: 'subscribed')
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173 d.addErrback(self._get_subscription, node, subscriber)
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174 d.addCallback(self._return_subscription, node.id)
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175 return d
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176
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177 def _get_subscription(self, failure, node, subscriber):
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178 failure.trap(error.SubscriptionExists)
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179 return node.get_subscription(subscriber)
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180
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181 def _return_subscription(self, result, node_id):
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182 return node_id, result
90
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183
178
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184 def _send_last_published(self, node, subscriber):
183
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185 class StringParser(object):
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186 def __init__(self):
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187 self.elementStream = domish.elementStream()
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188 self.elementStream.DocumentStartEvent = self.docStart
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189 self.elementStream.ElementEvent = self.elem
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190 self.elementStream.DocumentEndEvent = self.docEnd
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191
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192 def docStart(self, elem):
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193 self.document = elem
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194
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195 def elem(self, elem):
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196 self.document.addChild(elem)
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197
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198 def docEnd(self):
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199 pass
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200
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201 def parse(self, string):
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202 self.elementStream.parse(string)
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203 return self.document
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204
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205 def notify_item(result):
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206 if not result:
178
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207 return
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208
183
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209 items = [domish.SerializedXML(item) for item in result]
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210
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211 reactor.callLater(0, self.dispatch, {'items': items,
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212 'node_id': node.id,
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213 'subscriber': subscriber},
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214 '//event/pubsub/notify')
178
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215
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216 config = node.get_configuration()
179
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diff changeset
217 if config.get("pubsub#send_last_published_item", 'never') != 'on_sub':
178
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218 return
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219
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220 d = self.get_items(node.id, subscriber.userhostJID(), 1)
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221 d.addCallback(notify_item)
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222
167
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223 def unsubscribe(self, node_id, subscriber, requestor):
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224 if subscriber.userhostJID() != requestor:
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225 return defer.fail(error.Forbidden())
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226
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227 d = self.storage.get_node(node_id)
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228 d.addCallback(lambda node: node.remove_subscription(subscriber))
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229 return d
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230
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231 def get_subscriptions(self, entity):
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232 return self.storage.get_subscriptions(entity)
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233
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234 def supports_instant_nodes(self):
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235 return True
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236
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237 def create_node(self, node_id, requestor):
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diff changeset
238 if not node_id:
168
e2c2c2baf483 Fix use of uuid module now shipping with Python 2.5.
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diff changeset
239 node_id = 'generic/%s' % uuid.uuid4()
167
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240 d = self.storage.create_node(node_id, requestor)
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diff changeset
241 d.addCallback(lambda _: node_id)
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242 return d
90
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243
167
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diff changeset
244 def get_default_configuration(self):
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245 d = defer.succeed(self.default_config)
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246 d.addCallback(self._make_config)
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247 return d
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248
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249 def get_node_configuration(self, node_id):
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250 if not node_id:
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diff changeset
251 raise error.NoRootNode()
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diff changeset
252
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253 d = self.storage.get_node(node_id)
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diff changeset
254 d.addCallback(lambda node: node.get_configuration())
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255
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diff changeset
256 d.addCallback(self._make_config)
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diff changeset
257 return d
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258
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259 def _make_config(self, config):
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260 options = []
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diff changeset
261 for key, value in self.options.iteritems():
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
262 option = {"var": key}
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
263 option.update(value)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
264 if config.has_key(key):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
265 option["value"] = config[key]
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
266 options.append(option)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
267
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
268 return options
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
269
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
270 def set_node_configuration(self, node_id, options, requestor):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
271 if not node_id:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
272 raise error.NoRootNode()
90
59378610b16e Implement node purging and node deletion.
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parents: 85
diff changeset
273
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
274 for key, value in options.iteritems():
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
275 if not self.options.has_key(key):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
276 raise error.InvalidConfigurationOption()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
277 if self.options[key]["type"] == 'boolean':
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
278 try:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
279 options[key] = bool(int(value))
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
280 except ValueError:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
281 raise error.InvalidConfigurationValue()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
282
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parents: 159
diff changeset
283 d = self.storage.get_node(node_id)
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parents: 159
diff changeset
284 d.addCallback(_get_affiliation, requestor)
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parents: 159
diff changeset
285 d.addCallback(self._do_set_node_configuration, options)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
286 return d
90
59378610b16e Implement node purging and node deletion.
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diff changeset
287
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
288 def _do_set_node_configuration(self, result, options):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
289 node, affiliation = result
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diff changeset
290
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
291 if affiliation != 'owner':
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
292 raise error.Forbidden()
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diff changeset
293
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diff changeset
294 return node.set_configuration(options)
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diff changeset
295
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diff changeset
296 def get_affiliations(self, entity):
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297 return self.storage.get_affiliations(entity)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
298
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diff changeset
299 def get_items(self, node_id, requestor, max_items=None, item_ids=[]):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
300 d = self.storage.get_node(node_id)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
301 d.addCallback(_get_affiliation, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
302 d.addCallback(self._do_get_items, max_items, item_ids)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
303 return d
90
59378610b16e Implement node purging and node deletion.
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parents: 85
diff changeset
304
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
305 def _do_get_items(self, result, max_items, item_ids):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
306 node, affiliation = result
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
307
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
308 if affiliation == 'outcast':
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
309 raise error.Forbidden()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
310
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
311 if item_ids:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
312 return node.get_items_by_id(item_ids)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
313 else:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
314 return node.get_items(max_items)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
315
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
316 def retract_item(self, node_id, item_ids, requestor):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
317 d = self.storage.get_node(node_id)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
318 d.addCallback(_get_affiliation, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
319 d.addCallback(self._do_retract, item_ids)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
320 return d
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
321
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
322 def _do_retract(self, result, item_ids):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
323 node, affiliation = result
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
324 persist_items = node.get_configuration()["pubsub#persist_items"]
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
325
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
326 if affiliation not in ['owner', 'publisher']:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
327 raise error.Forbidden()
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
328
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
329 if not persist_items:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
330 raise error.NodeNotPersistent()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
331
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
332 d = node.remove_items(item_ids)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
333 d.addCallback(self._do_notify_retraction, node.id)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
334 return d
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
335
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
336 def _do_notify_retraction(self, item_ids, node_id):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
diff changeset
337 self.dispatch({ 'item_ids': item_ids, 'node_id': node_id },
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
338 '//event/pubsub/retract')
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
339
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
340 def purge_node(self, node_id, requestor):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
341 d = self.storage.get_node(node_id)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
342 d.addCallback(_get_affiliation, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
343 d.addCallback(self._do_purge)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
344 return d
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
345
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
346 def _do_purge(self, result):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
347 node, affiliation = result
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
348 persist_items = node.get_configuration()["pubsub#persist_items"]
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
349
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
350 if affiliation != 'owner':
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
351 raise error.Forbidden()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
352
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
353 if not persist_items:
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
354 raise error.NodeNotPersistent()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
355
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
356 d = node.purge()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
357 d.addCallback(self._do_notify_purge, node.id)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
358 return d
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
359
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
360 def _do_notify_purge(self, result, node_id):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
361 self.dispatch(node_id, '//event/pubsub/purge')
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
362
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
363 def register_pre_delete(self, pre_delete_fn):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
364 self._callback_list.append(pre_delete_fn)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
365
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
366 def get_subscribers(self, node_id):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
367 d = self.storage.get_node(node_id)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
368 d.addCallback(lambda node: node.get_subscribers())
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
369 return d
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
370
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
371 def delete_node(self, node_id, requestor):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
372 d = self.storage.get_node(node_id)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
373 d.addCallback(_get_affiliation, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
374 d.addCallback(self._do_pre_delete)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
375 return d
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
376
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
377 def _do_pre_delete(self, result):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
378 node, affiliation = result
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
379
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
380 if affiliation != 'owner':
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
381 raise error.Forbidden()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
382
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
383 d = defer.DeferredList([cb(node.id) for cb in self._callback_list],
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
384 consumeErrors=1)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
385 d.addCallback(self._do_delete, node.id)
59
0fa161c00ed9 Use jid.JIDs everywhere in the backend.
Ralph Meijer <ralphm@ik.nu>
parents: 53
diff changeset
386
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
387 def _do_delete(self, result, node_id):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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388 dl = []
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diff changeset
389 for succeeded, r in result:
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diff changeset
390 if succeeded and r:
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391 dl.extend(r)
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diff changeset
392
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393 d = self.storage.delete_node(node_id)
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394 d.addCallback(self._do_notify_delete, dl)
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diff changeset
395
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396 return d
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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diff changeset
397
167
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398 def _do_notify_delete(self, result, dl):
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399 for d in dl:
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diff changeset
400 d.callback(None)
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diff changeset
401
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402
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403 class PubSubServiceFromBackend(PubSubService):
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404 """
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405 Adapts a backend to an xmpp publish-subscribe service.
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406 """
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407
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408 implements(IDisco)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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409
167
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410 _errorMap = {
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411 error.NodeNotFound: ('item-not-found', None, None),
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412 error.NodeExists: ('conflict', None, None),
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413 error.Forbidden: ('forbidden', None, None),
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414 error.ItemForbidden: ('bad-request', 'item-forbidden', None),
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415 error.ItemRequired: ('bad-request', 'item-required', None),
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416 error.NoInstantNodes: ('not-acceptable',
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417 'unsupported',
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418 'instant-nodes'),
171
bc269696ef42 Reply with the correct error condition on subscription when not subscribed.
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419 error.NotSubscribed: ('unexpected-request', 'not-subscribed', None),
167
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420 error.InvalidConfigurationOption: ('not-acceptable', None, None),
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421 error.InvalidConfigurationValue: ('not-acceptable', None, None),
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422 error.NodeNotPersistent: ('feature-not-implemented',
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423 'unsupported',
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424 'persistent-node'),
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diff changeset
425 error.NoRootNode: ('bad-request', None, None),
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diff changeset
426 }
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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427
167
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428 def __init__(self, backend):
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429 PubSubService.__init__(self)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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430
167
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431 self.backend = backend
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432 self.hideNodes = False
153
753b8432460f Work towards JEP-0060 1.8
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433
167
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434 self.pubSubFeatures = self._getPubSubFeatures()
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435
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436 self.backend.register_notifier(self._notify)
174
79d451d186b1 Send out node deletion notifications.
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diff changeset
437 self.backend.register_pre_delete(self._pre_delete)
153
753b8432460f Work towards JEP-0060 1.8
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diff changeset
438
167
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439 def _getPubSubFeatures(self):
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440 features = [
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441 "config-node",
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442 "create-nodes",
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diff changeset
443 "delete-any",
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diff changeset
444 "delete-nodes",
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diff changeset
445 "item-ids",
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446 "meta-data",
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diff changeset
447 "publish",
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448 "purge-nodes",
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diff changeset
449 "retract-items",
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diff changeset
450 "retrieve-affiliations",
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diff changeset
451 "retrieve-default",
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diff changeset
452 "retrieve-items",
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diff changeset
453 "retrieve-subscriptions",
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diff changeset
454 "subscribe",
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diff changeset
455 ]
153
753b8432460f Work towards JEP-0060 1.8
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diff changeset
456
167
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diff changeset
457 if self.backend.supports_instant_nodes():
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458 features.append("instant-nodes")
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diff changeset
459
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diff changeset
460 if self.backend.supports_outcast_affiliation():
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diff changeset
461 features.append("outcast-affiliation")
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diff changeset
462
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diff changeset
463 if self.backend.supports_persistent_items():
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diff changeset
464 features.append("persistent-items")
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parents: 159
diff changeset
465
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diff changeset
466 if self.backend.supports_publisher_affiliation():
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diff changeset
467 features.append("publisher-affiliation")
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parents: 159
diff changeset
468
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diff changeset
469 return features
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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diff changeset
470
167
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diff changeset
471 def _notify(self, data):
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472 items = data['items']
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diff changeset
473 nodeIdentifier = data['node_id']
178
07114105885a Send last published item on subscription if node is so configured.
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parents: 174
diff changeset
474 if 'subscriber' not in data:
07114105885a Send last published item on subscription if node is so configured.
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diff changeset
475 d = self.backend.get_notification_list(nodeIdentifier, items)
07114105885a Send last published item on subscription if node is so configured.
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parents: 174
diff changeset
476 else:
07114105885a Send last published item on subscription if node is so configured.
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diff changeset
477 d = defer.succeed([(data['subscriber'], items)])
167
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diff changeset
478 d.addCallback(lambda notifications: self.notifyPublish(self.serviceJID,
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
479 nodeIdentifier,
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
480 notifications))
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parents: 159
diff changeset
481
174
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
482 def _pre_delete(self, nodeIdentifier):
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
483 d = self.backend.get_subscribers(nodeIdentifier)
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
484 d.addCallback(lambda subscribers: self.notifyDelete(self.serviceJID,
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
485 nodeIdentifier,
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
486 subscribers))
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
487 return d
79d451d186b1 Send out node deletion notifications.
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parents: 172
diff changeset
488
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
489 def _mapErrors(self, failure):
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parents: 159
diff changeset
490 e = failure.trap(*self._errorMap.keys())
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parents: 159
diff changeset
491
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diff changeset
492 condition, pubsubCondition, feature = self._errorMap[e]
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diff changeset
493 msg = failure.value.msg
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
494
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
495 if pubsubCondition:
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diff changeset
496 exc = PubSubError(condition, pubsubCondition, feature, msg)
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diff changeset
497 else:
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diff changeset
498 exc = StanzaError(condition, text=msg)
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diff changeset
499
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diff changeset
500 raise exc
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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diff changeset
501
167
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diff changeset
502 def getNodeInfo(self, requestor, service, nodeIdentifier):
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diff changeset
503 info = {}
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diff changeset
504
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diff changeset
505 def saveType(result):
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diff changeset
506 info['type'] = result
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diff changeset
507 return nodeIdentifier
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
508
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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diff changeset
509 def saveMetaData(result):
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diff changeset
510 info['meta-data'] = result
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parents: 159
diff changeset
511 return info
29
d4fc29bb5381 Define interfaces of blocks of functionality.
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parents: 24
diff changeset
512
167
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diff changeset
513 d = defer.succeed(nodeIdentifier)
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diff changeset
514 d.addCallback(self.backend.get_node_type)
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diff changeset
515 d.addCallback(saveType)
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diff changeset
516 d.addCallback(self.backend.get_node_meta_data)
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diff changeset
517 d.addCallback(saveMetaData)
172
9bfb00edd0cc Fix Backend's getNodeInfo so that it properly adds its errback.
Ralph Meijer <ralphm@ik.nu>
parents: 171
diff changeset
518 d.addErrback(self._mapErrors)
167
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519 return d
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Ralph Meijer <ralphm@ik.nu>
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520
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521 def getNodes(self, requestor, service):
169
96afb248df5e Fix typos in service creation. Make disco not respond when a resource is provided.
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parents: 168
diff changeset
522 if service.resource:
96afb248df5e Fix typos in service creation. Make disco not respond when a resource is provided.
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523 return defer.succeed([])
167
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parents: 159
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524 d = self.backend.get_nodes()
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parents: 159
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525 return d.addErrback(self._mapErrors)
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Ralph Meijer <ralphm@ik.nu>
parents: 159
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526
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Ralph Meijer <ralphm@ik.nu>
parents: 159
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527 def publish(self, requestor, service, nodeIdentifier, items):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
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528 d = self.backend.publish(nodeIdentifier, items, requestor)
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
529 return d.addErrback(self._mapErrors)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
530
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
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parents: 159
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531 def subscribe(self, requestor, service, nodeIdentifier, subscriber):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
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532 d = self.backend.subscribe(nodeIdentifier, subscriber, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
533 return d.addErrback(self._mapErrors)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
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534
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
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535 def unsubscribe(self, requestor, service, nodeIdentifier, subscriber):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
536 d = self.backend.unsubscribe(nodeIdentifier, subscriber, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
537 return d.addErrback(self._mapErrors)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
538
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
539 def subscriptions(self, requestor, service):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
540 d = self.backend.get_subscriptions(requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
541 return d.addErrback(self._mapErrors)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
542
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
543 def affiliations(self, requestor, service):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
544 d = self.backend.get_affiliations(requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
545 return d.addErrback(self._mapErrors)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
546
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
547 def create(self, requestor, service, nodeIdentifier):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
548 d = self.backend.create_node(nodeIdentifier, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
549 return d.addErrback(self._mapErrors)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
550
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
551 def getDefaultConfiguration(self, requestor, service):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
552 d = self.backend.get_default_configuration()
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
553 return d.addErrback(self._mapErrors)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
554
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
555 def getConfiguration(self, requestor, service, nodeIdentifier):
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
556 d = self.backend.get_node_configuration(nodeIdentifier)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
557 return d.addErrback(self._mapErrors)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
558
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
559 def setConfiguration(self, requestor, service, nodeIdentifier, options):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
560 d = self.backend.set_node_configuration(nodeIdentifier, options,
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
561 requestor)
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Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
562 return d.addErrback(self._mapErrors)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
563
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
564 def items(self, requestor, service, nodeIdentifier, maxItems, itemIdentifiers):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
565 d = self.backend.get_items(nodeIdentifier, requestor, maxItems,
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
566 itemIdentifiers)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
567 return d.addErrback(self._mapErrors)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
568
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
569 def retract(self, requestor, service, nodeIdentifier, itemIdentifiers):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
570 d = self.backend.retract_item(nodeIdentifier, itemIdentifiers,
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
571 requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
572 return d.addErrback(self._mapErrors)
29
d4fc29bb5381 Define interfaces of blocks of functionality.
Ralph Meijer <ralphm@ik.nu>
parents: 24
diff changeset
573
167
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
574 def purge(self, requestor, service, nodeIdentifier):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
575 d = self.backend.purge_node(nodeIdentifier, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
576 return d.addErrback(self._mapErrors)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
577
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
578 def delete(self, requestor, service, nodeIdentifier):
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
579 d = self.backend.delete_node(nodeIdentifier, requestor)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
580 return d.addErrback(self._mapErrors)
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
581
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
582 components.registerAdapter(PubSubServiceFromBackend,
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
583 IBackendService,
ef22e4150caa Move protocol implementations (pubsub, disco, forms) to and depend on wokkel.
Ralph Meijer <ralphm@ik.nu>
parents: 159
diff changeset
584 IPubSubService)