Mercurial > libervia-pubsub
annotate sat_pubsub/pgsql_storage.py @ 348:d1f63ae1eaf4
privilege: added isSubscribedFrom method to check if an entity has presence subscription from an other entity.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 27 Aug 2017 20:26:38 +0200 |
| parents | f33406fcab5c |
| children | 20b82fb8de02 |
| rev | line source |
|---|---|
| 233 | 1 #!/usr/bin/python |
| 2 #-*- coding: utf-8 -*- | |
| 3 | |
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4 # Copyright (c) 2012-2016 Jérôme Poisson |
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5 # Copyright (c) 2013-2016 Adrien Cossa |
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6 # Copyright (c) 2003-2011 Ralph Meijer |
| 233 | 7 |
| 8 | |
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9 # This program is free software: you can redistribute it and/or modify |
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10 # it under the terms of the GNU Affero General Public License as published by |
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11 # the Free Software Foundation, either version 3 of the License, or |
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12 # (at your option) any later version. |
| 233 | 13 |
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14 # This program is distributed in the hope that it will be useful, |
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15 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 # GNU Affero General Public License for more details. |
| 233 | 18 |
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19 # You should have received a copy of the GNU Affero General Public License |
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20 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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21 # -- |
| 233 | 22 |
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23 # This program is based on Idavoll (http://idavoll.ik.nu/), |
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24 # originaly written by Ralph Meijer (http://ralphm.net/blog/) |
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25 # It is sublicensed under AGPL v3 (or any later version) as allowed by the original |
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26 # license. |
| 233 | 27 |
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28 # -- |
| 233 | 29 |
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30 # Here is a copy of the original license: |
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31 |
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32 # Copyright (c) 2003-2011 Ralph Meijer |
| 233 | 33 |
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34 # Permission is hereby granted, free of charge, to any person obtaining |
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35 # a copy of this software and associated documentation files (the |
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36 # "Software"), to deal in the Software without restriction, including |
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37 # without limitation the rights to use, copy, modify, merge, publish, |
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38 # distribute, sublicense, and/or sell copies of the Software, and to |
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39 # permit persons to whom the Software is furnished to do so, subject to |
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40 # the following conditions: |
| 233 | 41 |
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42 # The above copyright notice and this permission notice shall be |
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43 # included in all copies or substantial portions of the Software. |
| 233 | 44 |
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45 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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46 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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47 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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48 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
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49 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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50 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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51 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 233 | 52 |
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53 |
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54 import copy, logging |
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55 |
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56 from zope.interface import implements |
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57 |
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58 from twisted.internet import reactor |
| 107 | 59 from twisted.words.protocols.jabber import jid |
| 323 | 60 from twisted.python import log |
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61 |
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62 from wokkel import generic |
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63 from wokkel.pubsub import Subscription |
| 107 | 64 |
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65 from sat_pubsub import error |
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66 from sat_pubsub import iidavoll |
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67 from sat_pubsub import const |
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68 from sat_pubsub import container |
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69 import psycopg2 |
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70 import psycopg2.extensions |
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71 # we wants psycopg2 to return us unicode, not str |
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72 psycopg2.extensions.register_type(psycopg2.extensions.UNICODE) |
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73 psycopg2.extensions.register_type(psycopg2.extensions.UNICODEARRAY) |
| 244 | 74 |
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75 # parseXml manage str, but we get unicode |
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76 parseXml = lambda unicode_data: generic.parseXml(unicode_data.encode('utf-8')) |
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77 PEP_COL_NAME = 'pep' |
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78 CURRENT_VERSION = '2' |
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79 |
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80 |
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81 def withPEP(query, values, pep, recipient): |
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82 """Helper method to facilitate PEP management |
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83 |
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84 @param query: SQL query basis |
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85 @param values: current values to replace in query |
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86 @param pep: True if we are in PEP mode |
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87 @param recipient: jid of the recipient |
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88 @return: query + PEP AND check, |
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89 recipient's bare jid is added to value if needed |
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90 """ |
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91 if pep: |
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92 pep_check="AND {}=%s".format(PEP_COL_NAME) |
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93 values=list(values) + [recipient.userhost()] |
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94 else: |
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95 pep_check="AND {} IS NULL".format(PEP_COL_NAME) |
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96 return "{} {}".format(query, pep_check), values |
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97 |
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98 |
| 107 | 99 class Storage: |
| 100 | |
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101 implements(iidavoll.IStorage) |
| 107 | 102 |
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103 defaultConfig = { |
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104 'leaf': { |
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105 const.OPT_PERSIST_ITEMS: True, |
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106 const.OPT_DELIVER_PAYLOADS: True, |
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107 const.OPT_SEND_LAST_PUBLISHED_ITEM: 'on_sub', |
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108 const.OPT_ACCESS_MODEL: const.VAL_AMODEL_DEFAULT, |
| 260 | 109 const.OPT_PUBLISH_MODEL: const.VAL_PMODEL_DEFAULT, |
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110 }, |
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111 'collection': { |
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112 const.OPT_DELIVER_PAYLOADS: True, |
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113 const.OPT_SEND_LAST_PUBLISHED_ITEM: 'on_sub', |
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114 const.OPT_ACCESS_MODEL: const.VAL_AMODEL_DEFAULT, |
| 260 | 115 const.OPT_PUBLISH_MODEL: const.VAL_PMODEL_DEFAULT, |
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116 } |
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117 } |
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118 |
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119 def __init__(self, dbpool): |
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120 self.dbpool = dbpool |
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121 d = self.dbpool.runQuery("SELECT value FROM metadata WHERE key='version'") |
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122 d.addCallbacks(self._checkVersion, self._versionEb) |
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123 |
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124 def _checkVersion(self, row): |
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125 version = row[0].value |
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126 if version != CURRENT_VERSION: |
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127 logging.error("Bad database schema version ({current}), please upgrade to {needed}".format( |
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128 current=version, needed=CURRENT_VERSION)) |
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129 reactor.stop() |
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130 |
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131 def _versionEb(self, failure): |
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132 logging.error("Can't check schema version: {reason}".format(reason=failure)) |
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133 reactor.stop() |
| 107 | 134 |
|
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135 def _buildNode(self, row): |
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136 """Build a note class from database result row""" |
| 107 | 137 configuration = {} |
|
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138 |
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139 if not row: |
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140 raise error.NodeNotFound() |
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141 |
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142 if row[2] == 'leaf': |
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143 configuration = { |
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144 'pubsub#persist_items': row[3], |
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145 'pubsub#deliver_payloads': row[4], |
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146 'pubsub#send_last_published_item': row[5], |
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147 const.OPT_ACCESS_MODEL:row[6], |
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148 const.OPT_PUBLISH_MODEL:row[7], |
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149 } |
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150 node = LeafNode(row[0], row[1], configuration) |
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151 node.dbpool = self.dbpool |
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152 return node |
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153 elif row[2] == 'collection': |
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154 configuration = { |
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155 'pubsub#deliver_payloads': row[4], |
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156 'pubsub#send_last_published_item': row[5], |
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157 const.OPT_ACCESS_MODEL: row[6], |
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158 const.OPT_PUBLISH_MODEL:row[7], |
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159 } |
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160 node = CollectionNode(row[0], row[1], configuration) |
|
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161 node.dbpool = self.dbpool |
| 107 | 162 return node |
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163 else: |
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164 raise ValueError("Unknown node type !") |
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165 |
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166 def getNodeById(self, nodeDbId): |
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167 """Get node using database ID insted of pubsub identifier |
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168 |
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169 @param nodeDbId(unicode): database ID |
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170 """ |
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171 return self.dbpool.runInteraction(self._getNodeById, nodeDbId) |
|
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172 |
|
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173 def _getNodeById(self, cursor, nodeDbId): |
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174 cursor.execute("""SELECT node_id, |
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175 node, |
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176 node_type, |
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177 persist_items, |
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178 deliver_payloads, |
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179 send_last_published_item, |
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180 access_model, |
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181 publish_model, |
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182 pep |
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183 FROM nodes |
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184 WHERE node_id=%s""", |
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185 (nodeDbId,)) |
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186 row = cursor.fetchone() |
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187 return self._buildNode(row) |
|
198
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188 |
|
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189 def getNode(self, nodeIdentifier, pep, recipient=None): |
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190 return self.dbpool.runInteraction(self._getNode, nodeIdentifier, pep, recipient) |
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191 |
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192 def _getNode(self, cursor, nodeIdentifier, pep, recipient): |
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193 cursor.execute(*withPEP("""SELECT node_id, |
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194 node, |
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195 node_type, |
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196 persist_items, |
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197 deliver_payloads, |
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198 send_last_published_item, |
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199 access_model, |
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200 publish_model, |
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201 pep |
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202 FROM nodes |
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203 WHERE node=%s""", |
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204 (nodeIdentifier,), pep, recipient)) |
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205 row = cursor.fetchone() |
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206 return self._buildNode(row) |
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207 |
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208 def getNodeIds(self, pep): |
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209 d = self.dbpool.runQuery("""SELECT node from nodes WHERE pep is {}NULL""" |
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210 .format("NOT " if pep else "")) |
| 107 | 211 d.addCallback(lambda results: [r[0] for r in results]) |
| 212 return d | |
| 213 | |
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214 def createNode(self, nodeIdentifier, owner, config, pep, recipient=None): |
|
204
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215 return self.dbpool.runInteraction(self._createNode, nodeIdentifier, |
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216 owner, config, pep, recipient) |
|
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217 |
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218 def _createNode(self, cursor, nodeIdentifier, owner, config, pep, recipient): |
|
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219 if config['pubsub#node_type'] != 'leaf': |
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220 raise error.NoCollections() |
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221 |
|
136
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222 owner = owner.userhost() |
|
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223 |
| 107 | 224 try: |
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225 cursor.execute("""INSERT INTO nodes |
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226 (node, node_type, persist_items, |
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227 deliver_payloads, send_last_published_item, access_model, publish_model, pep) |
|
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228 VALUES |
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229 (%s, 'leaf', %s, %s, %s, %s, %s, %s)""", |
|
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230 (nodeIdentifier, |
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231 config['pubsub#persist_items'], |
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232 config['pubsub#deliver_payloads'], |
|
240
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233 config['pubsub#send_last_published_item'], |
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234 config[const.OPT_ACCESS_MODEL], |
| 260 | 235 config[const.OPT_PUBLISH_MODEL], |
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236 recipient.userhost() if pep else None |
|
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237 ) |
|
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238 ) |
|
332
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239 except cursor._pool.dbapi.IntegrityError as e: |
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240 if e.pgcode == "23505": |
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241 # unique_violation |
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242 raise error.NodeExists() |
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243 else: |
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244 raise error.InvalidConfigurationOption() |
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167
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245 |
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246 cursor.execute(*withPEP("""SELECT node_id FROM nodes WHERE node=%s""", |
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247 (nodeIdentifier,), pep, recipient)); |
|
259
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248 node_id = cursor.fetchone()[0] |
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249 |
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250 cursor.execute("""SELECT 1 as bool from entities where jid=%s""", |
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251 (owner,)) |
| 107 | 252 |
| 253 if not cursor.fetchone(): | |
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254 # XXX: we can NOT rely on the previous query! Commit is needed now because |
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255 # if the entry exists the next query will leave the database in a corrupted |
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256 # state: the solution is to rollback. I tried with other methods like |
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257 # "WHERE NOT EXISTS" but none of them worked, so the following solution |
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258 # looks like the sole - unless you have auto-commit on. More info |
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259 # about this issue: http://cssmay.com/question/tag/tag-psycopg2 |
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260 cursor._connection.commit() |
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261 try: |
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262 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", |
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263 (owner,)) |
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264 except psycopg2.IntegrityError as e: |
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265 cursor._connection.rollback() |
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266 logging.warning("during node creation: %s" % e.message) |
| 107 | 267 |
| 268 cursor.execute("""INSERT INTO affiliations | |
| 269 (node_id, entity_id, affiliation) | |
|
259
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270 SELECT %s, entity_id, 'owner' FROM |
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271 (SELECT entity_id FROM entities |
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272 WHERE jid=%s) as e""", |
|
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273 (node_id, owner)) |
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274 |
|
330
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275 if config[const.OPT_ACCESS_MODEL] == const.VAL_AMODEL_PUBLISHER_ROSTER: |
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276 if const.OPT_ROSTER_GROUPS_ALLOWED in config: |
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277 allowed_groups = config[const.OPT_ROSTER_GROUPS_ALLOWED] |
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278 else: |
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279 allowed_groups = [] |
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280 for group in allowed_groups: |
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281 #TODO: check that group are actually in roster |
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282 cursor.execute("""INSERT INTO node_groups_authorized (node_id, groupname) |
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283 VALUES (%s,%s)""" , (node_id, group)) |
|
330
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284 # XXX: affiliations can't be set on during node creation (at least not with XEP-0060 alone) |
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285 # so whitelist affiliations need to be done afterward |
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286 |
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287 def deleteNodeByDbId(self, db_id): |
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288 """Delete a node using directly its database id""" |
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289 return self.dbpool.runInteraction(self._deleteNodeByDbId, db_id) |
| 107 | 290 |
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291 def _deleteNodeByDbId(self, cursor, db_id): |
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292 cursor.execute("""DELETE FROM nodes WHERE node_id=%s""", |
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293 (db_id,)) |
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294 |
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295 if cursor.rowcount != 1: |
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296 raise error.NodeNotFound() |
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297 |
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298 def deleteNode(self, nodeIdentifier, pep, recipient=None): |
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299 return self.dbpool.runInteraction(self._deleteNode, nodeIdentifier, pep, recipient) |
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300 |
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301 def _deleteNode(self, cursor, nodeIdentifier, pep, recipient): |
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302 cursor.execute(*withPEP("""DELETE FROM nodes WHERE node=%s""", |
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303 (nodeIdentifier,), pep, recipient)) |
| 107 | 304 |
| 305 if cursor.rowcount != 1: | |
|
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306 raise error.NodeNotFound() |
| 107 | 307 |
| 331 | 308 def getAffiliations(self, entity, nodeIdentifier, pep, recipient=None): |
| 309 return self.dbpool.runInteraction(self._getAffiliations, entity, nodeIdentifier, pep, recipient) | |
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310 |
| 331 | 311 def _getAffiliations(self, cursor, entity, nodeIdentifier, pep, recipient=None): |
| 312 query = ["""SELECT node, affiliation FROM entities | |
| 313 NATURAL JOIN affiliations | |
| 314 NATURAL JOIN nodes | |
| 315 WHERE jid=%s"""] | |
| 316 args = [entity.userhost()] | |
| 317 | |
| 318 if nodeIdentifier is not None: | |
| 319 query.append("AND node=%s") | |
| 320 args.append(nodeIdentifier) | |
| 321 | |
| 322 cursor.execute(*withPEP(' '.join(query), args, pep, recipient)) | |
| 323 rows = cursor.fetchall() | |
| 324 return [tuple(r) for r in rows] | |
| 107 | 325 |
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326 def getSubscriptions(self, entity, pep, recipient=None): |
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327 def toSubscriptions(rows): |
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328 subscriptions = [] |
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329 for row in rows: |
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330 subscriber = jid.internJID('%s/%s' % (row[1], |
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331 row[2])) |
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332 subscription = Subscription(row[0], subscriber, row[3]) |
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333 subscriptions.append(subscription) |
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334 return subscriptions |
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335 |
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336 d = self.dbpool.runQuery("""SELECT node, jid, resource, state |
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337 FROM entities |
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338 NATURAL JOIN subscriptions |
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339 NATURAL JOIN nodes |
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340 WHERE jid=%s AND nodes.pep=%s""", |
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341 (entity.userhost(), recipient.userhost() if pep else None)) |
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342 d.addCallback(toSubscriptions) |
| 107 | 343 return d |
| 344 | |
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345 def getDefaultConfiguration(self, nodeType): |
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346 return self.defaultConfig[nodeType] |
| 107 | 347 |
|
337
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348 def formatLastItems(self, result): |
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349 last_items = [] |
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350 for pep_jid_s, node, data, item_access_model in result: |
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351 pep_jid = jid.JID(pep_jid_s) |
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352 item = generic.stripNamespace(parseXml(data)) |
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353 last_items.append((pep_jid, node, item, item_access_model)) |
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354 return last_items |
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355 |
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356 def getLastItems(self, entities, nodes, node_accesses, item_accesses, pep): |
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357 """get last item for several nodes and entities in a single request""" |
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358 if not entities or not nodes or not node_accesses or not item_accesses: |
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359 raise ValueError("entities, nodes and accesses must not be empty") |
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360 if node_accesses != ('open',) or item_accesses != ('open',): |
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361 raise NotImplementedError('only "open" access model is handled for now') |
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362 if not pep: |
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363 raise NotImplementedError(u"getLastItems is only implemented for PEP at the moment") |
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364 d = self.dbpool.runQuery("""SELECT DISTINCT ON (node_id) pep, node, data, items.access_model |
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365 FROM items |
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366 NATURAL JOIN nodes |
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367 WHERE nodes.pep IN %s |
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368 AND node IN %s |
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369 AND nodes.access_model in %s |
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370 AND items.access_model in %s |
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371 ORDER BY node_id DESC, item_id DESC""", |
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372 (tuple([e.userhost() for e in entities]), |
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373 nodes, |
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374 node_accesses, |
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375 item_accesses)) |
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376 d.addCallback(self.formatLastItems) |
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377 return d |
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378 |
|
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379 |
| 107 | 380 class Node: |
| 381 | |
|
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382 implements(iidavoll.INode) |
| 107 | 383 |
|
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384 def __init__(self, nodeDbId, nodeIdentifier, config): |
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385 self.nodeDbId = nodeDbId |
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386 self.nodeIdentifier = nodeIdentifier |
| 107 | 387 self._config = config |
| 388 | |
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389 def _checkNodeExists(self, cursor): |
|
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390 cursor.execute("""SELECT 1 as exist FROM nodes WHERE node_id=%s""", |
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391 (self.nodeDbId,)) |
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392 if not cursor.fetchone(): |
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393 raise error.NodeNotFound() |
|
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394 |
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395 def getType(self): |
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396 return self.nodeType |
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397 |
|
330
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398 def getOwners(self): |
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399 d = self.dbpool.runQuery("""SELECT jid FROM nodes NATURAL JOIN affiliations NATURAL JOIN entities WHERE node_id=%s and affiliation='owner'""", (self.nodeDbId,)) |
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400 d.addCallback(lambda rows: [jid.JID(r[0]) for r in rows]) |
|
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401 return d |
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402 |
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403 def getConfiguration(self): |
| 107 | 404 return self._config |
| 405 | |
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406 def setConfiguration(self, options): |
|
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407 config = copy.copy(self._config) |
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408 |
| 107 | 409 for option in options: |
|
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410 if option in config: |
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411 config[option] = options[option] |
|
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412 |
|
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413 d = self.dbpool.runInteraction(self._setConfiguration, config) |
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414 d.addCallback(self._setCachedConfiguration, config) |
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415 return d |
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416 |
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417 def _setConfiguration(self, cursor, config): |
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418 self._checkNodeExists(cursor) |
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419 cursor.execute("""UPDATE nodes SET persist_items=%s, |
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420 deliver_payloads=%s, |
|
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421 send_last_published_item=%s, |
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422 access_model=%s, |
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423 publish_model=%s |
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424 WHERE node_id=%s""", |
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425 (config[const.OPT_PERSIST_ITEMS], |
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426 config[const.OPT_DELIVER_PAYLOADS], |
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427 config[const.OPT_SEND_LAST_PUBLISHED_ITEM], |
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428 config[const.OPT_ACCESS_MODEL], |
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429 config[const.OPT_PUBLISH_MODEL], |
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430 self.nodeDbId)) |
| 107 | 431 |
|
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432 def _setCachedConfiguration(self, void, config): |
|
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433 self._config = config |
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434 |
|
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435 def getMetaData(self): |
| 107 | 436 config = copy.copy(self._config) |
|
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437 config["pubsub#node_type"] = self.nodeType |
| 107 | 438 return config |
| 439 | |
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440 def getAffiliation(self, entity): |
|
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441 return self.dbpool.runInteraction(self._getAffiliation, entity) |
| 107 | 442 |
|
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443 def _getAffiliation(self, cursor, entity): |
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444 self._checkNodeExists(cursor) |
| 107 | 445 cursor.execute("""SELECT affiliation FROM affiliations |
|
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446 NATURAL JOIN nodes |
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447 NATURAL JOIN entities |
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448 WHERE node_id=%s AND jid=%s""", |
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449 (self.nodeDbId, |
|
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450 entity.userhost())) |
| 107 | 451 |
| 452 try: | |
| 453 return cursor.fetchone()[0] | |
| 454 except TypeError: | |
| 455 return None | |
| 456 | |
|
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457 def getAccessModel(self): |
|
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458 return self._config[const.OPT_ACCESS_MODEL] |
|
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459 |
|
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460 def getSubscription(self, subscriber): |
|
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461 return self.dbpool.runInteraction(self._getSubscription, subscriber) |
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462 |
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463 def _getSubscription(self, cursor, subscriber): |
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464 self._checkNodeExists(cursor) |
|
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465 |
|
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466 userhost = subscriber.userhost() |
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467 resource = subscriber.resource or '' |
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468 |
|
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469 cursor.execute("""SELECT state FROM subscriptions |
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470 NATURAL JOIN nodes |
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471 NATURAL JOIN entities |
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472 WHERE node_id=%s AND jid=%s AND resource=%s""", |
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473 (self.nodeDbId, |
|
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474 userhost, |
|
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475 resource)) |
|
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476 |
|
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477 row = cursor.fetchone() |
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478 if not row: |
|
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479 return None |
|
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480 else: |
|
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481 return Subscription(self.nodeIdentifier, subscriber, row[0]) |
|
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482 |
|
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483 def getSubscriptions(self, state=None): |
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484 return self.dbpool.runInteraction(self._getSubscriptions, state) |
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485 |
|
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486 def _getSubscriptions(self, cursor, state): |
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487 self._checkNodeExists(cursor) |
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488 |
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489 query = """SELECT node, jid, resource, state, |
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490 subscription_type, subscription_depth |
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491 FROM subscriptions |
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492 NATURAL JOIN nodes |
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493 NATURAL JOIN entities |
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494 WHERE node_id=%s""" |
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495 values = [self.nodeDbId] |
|
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496 |
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497 if state: |
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498 query += " AND state=%s" |
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499 values.append(state) |
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500 |
|
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501 cursor.execute(query, values) |
|
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502 rows = cursor.fetchall() |
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503 |
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504 subscriptions = [] |
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505 for row in rows: |
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506 subscriber = jid.JID(u'%s/%s' % (row[1], row[2])) |
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507 |
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508 options = {} |
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509 if row[4]: |
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510 options['pubsub#subscription_type'] = row[4]; |
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511 if row[5]: |
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512 options['pubsub#subscription_depth'] = row[5]; |
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513 |
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514 subscriptions.append(Subscription(row[0], subscriber, |
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515 row[3], options)) |
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516 |
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517 return subscriptions |
| 107 | 518 |
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519 def addSubscription(self, subscriber, state, config): |
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520 return self.dbpool.runInteraction(self._addSubscription, subscriber, |
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521 state, config) |
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522 |
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523 def _addSubscription(self, cursor, subscriber, state, config): |
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524 self._checkNodeExists(cursor) |
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525 |
| 107 | 526 userhost = subscriber.userhost() |
| 527 resource = subscriber.resource or '' | |
| 528 | |
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529 subscription_type = config.get('pubsub#subscription_type') |
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530 subscription_depth = config.get('pubsub#subscription_depth') |
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531 |
| 107 | 532 try: |
| 533 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", | |
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534 (userhost,)) |
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535 except cursor._pool.dbapi.IntegrityError: |
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536 cursor._connection.rollback() |
| 107 | 537 |
| 538 try: | |
| 539 cursor.execute("""INSERT INTO subscriptions | |
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540 (node_id, entity_id, resource, state, |
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541 subscription_type, subscription_depth) |
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542 SELECT %s, entity_id, %s, %s, %s, %s FROM |
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543 (SELECT entity_id FROM entities |
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544 WHERE jid=%s) AS ent_id""", |
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545 (self.nodeDbId, |
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546 resource, |
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547 state, |
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548 subscription_type, |
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549 subscription_depth, |
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550 userhost)) |
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551 except cursor._pool.dbapi.IntegrityError: |
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552 raise error.SubscriptionExists() |
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553 |
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554 def removeSubscription(self, subscriber): |
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555 return self.dbpool.runInteraction(self._removeSubscription, |
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556 subscriber) |
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557 |
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558 def _removeSubscription(self, cursor, subscriber): |
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559 self._checkNodeExists(cursor) |
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560 |
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561 userhost = subscriber.userhost() |
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562 resource = subscriber.resource or '' |
| 107 | 563 |
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564 cursor.execute("""DELETE FROM subscriptions WHERE |
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565 node_id=%s AND |
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566 entity_id=(SELECT entity_id FROM entities |
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567 WHERE jid=%s) AND |
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568 resource=%s""", |
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569 (self.nodeDbId, |
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570 userhost, |
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571 resource)) |
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572 if cursor.rowcount != 1: |
|
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573 raise error.NotSubscribed() |
| 107 | 574 |
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575 return None |
| 107 | 576 |
|
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577 def setSubscriptions(self, subscriptions): |
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578 return self.dbpool.runInteraction(self._setSubscriptions, subscriptions) |
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579 |
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580 def _setSubscriptions(self, cursor, subscriptions): |
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581 self._checkNodeExists(cursor) |
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582 |
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583 entities = self.getOrCreateEntities(cursor, [s.subscriber for s in subscriptions]) |
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584 entities_map = {jid.JID(e.jid): e for e in entities} |
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585 |
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586 # then we construct values for subscriptions update according to entity_id we just got |
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587 placeholders = ','.join(len(subscriptions) * ["%s"]) |
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588 values = [] |
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589 for subscription in subscriptions: |
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590 entity_id = entities_map[subscription.subscriber].entity_id |
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591 resource = subscription.subscriber.resource or u'' |
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592 values.append((self.nodeDbId, entity_id, resource, subscription.state, None, None)) |
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593 # we use upsert so new values are inserted and existing one updated. This feature is only available for PostgreSQL >= 9.5 |
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594 cursor.execute("INSERT INTO subscriptions(node_id, entity_id, resource, state, subscription_type, subscription_depth) VALUES " + placeholders + " ON CONFLICT (entity_id, resource, node_id) DO UPDATE SET state=EXCLUDED.state", [v for v in values]) |
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595 |
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596 def isSubscribed(self, entity): |
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597 return self.dbpool.runInteraction(self._isSubscribed, entity) |
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598 |
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599 def _isSubscribed(self, cursor, entity): |
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600 self._checkNodeExists(cursor) |
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601 |
|
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602 cursor.execute("""SELECT 1 as bool FROM entities |
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603 NATURAL JOIN subscriptions |
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604 NATURAL JOIN nodes |
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605 WHERE entities.jid=%s |
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606 AND node_id=%s AND state='subscribed'""", |
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607 (entity.userhost(), |
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608 self.nodeDbId)) |
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609 |
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610 return cursor.fetchone() is not None |
| 107 | 611 |
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612 def getAffiliations(self): |
|
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613 return self.dbpool.runInteraction(self._getAffiliations) |
|
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614 |
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615 def _getAffiliations(self, cursor): |
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616 self._checkNodeExists(cursor) |
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617 |
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618 cursor.execute("""SELECT jid, affiliation FROM nodes |
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619 NATURAL JOIN affiliations |
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620 NATURAL JOIN entities |
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621 WHERE node_id=%s""", |
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622 (self.nodeDbId,)) |
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623 result = cursor.fetchall() |
|
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624 |
|
330
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625 return {jid.internJID(r[0]): r[1] for r in result} |
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626 |
| 331 | 627 def getOrCreateEntities(self, cursor, entities_jids): |
| 628 """Get entity_id from entities in entities table | |
| 629 | |
| 630 Entities will be inserted it they don't exist | |
| 631 @param entities_jid(list[jid.JID]): entities to get or create | |
|
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632 @return list[record(entity_id,jid)]]: list of entity_id and jid (as plain string) |
| 331 | 633 both existing and inserted entities are returned |
| 634 """ | |
| 635 # cf. http://stackoverflow.com/a/35265559 | |
| 636 placeholders = ','.join(len(entities_jids) * ["(%s)"]) | |
| 637 query = ( | |
| 638 """ | |
| 639 WITH | |
| 640 jid_values (jid) AS ( | |
| 641 VALUES {placeholders} | |
| 642 ), | |
| 643 inserted (entity_id, jid) AS ( | |
| 644 INSERT INTO entities (jid) | |
| 645 SELECT jid | |
| 646 FROM jid_values | |
| 647 ON CONFLICT DO NOTHING | |
| 648 RETURNING entity_id, jid | |
| 649 ) | |
| 650 SELECT e.entity_id, e.jid | |
| 651 FROM entities e JOIN jid_values jv ON jv.jid = e.jid | |
| 652 UNION ALL | |
| 653 SELECT entity_id, jid | |
| 654 FROM inserted""".format(placeholders=placeholders)) | |
| 655 cursor.execute(query, [j.userhost() for j in entities_jids]) | |
| 656 return cursor.fetchall() | |
| 657 | |
| 658 def setAffiliations(self, affiliations): | |
| 659 return self.dbpool.runInteraction(self._setAffiliations, affiliations) | |
| 660 | |
| 661 def _setAffiliations(self, cursor, affiliations): | |
| 662 self._checkNodeExists(cursor) | |
| 663 | |
| 664 entities = self.getOrCreateEntities(cursor, affiliations) | |
| 665 | |
| 666 # then we construct values for affiliations update according to entity_id we just got | |
| 667 placeholders = ','.join(len(affiliations) * ["(%s,%s,%s)"]) | |
| 668 values = [] | |
| 669 map(values.extend, ((e.entity_id, affiliations[jid.JID(e.jid)], self.nodeDbId) for e in entities)) | |
| 670 | |
| 671 # we use upsert so new values are inserted and existing one updated. This feature is only available for PostgreSQL >= 9.5 | |
| 672 cursor.execute("INSERT INTO affiliations(entity_id,affiliation,node_id) VALUES " + placeholders + " ON CONFLICT (entity_id,node_id) DO UPDATE SET affiliation=EXCLUDED.affiliation", values) | |
| 673 | |
| 674 def deleteAffiliations(self, entities): | |
| 675 return self.dbpool.runInteraction(self._deleteAffiliations, entities) | |
| 676 | |
| 677 def _deleteAffiliations(self, cursor, entities): | |
| 678 """delete affiliations and subscriptions for this entity""" | |
| 679 self._checkNodeExists(cursor) | |
| 680 placeholders = ','.join(len(entities) * ["%s"]) | |
| 681 cursor.execute("DELETE FROM affiliations WHERE node_id=%s AND entity_id in (SELECT entity_id FROM entities WHERE jid IN (" + placeholders + ")) RETURNING entity_id", [self.nodeDbId] + [e.userhost() for e in entities]) | |
| 682 | |
| 683 rows = cursor.fetchall() | |
| 684 placeholders = ','.join(len(rows) * ["%s"]) | |
| 685 cursor.execute("DELETE FROM subscriptions WHERE node_id=%s AND entity_id in (" + placeholders + ")", [self.nodeDbId] + [r[0] for r in rows]) | |
| 686 | |
| 687 def getAuthorizedGroups(self): | |
| 688 return self.dbpool.runInteraction(self._getNodeGroups) | |
| 689 | |
| 690 def _getAuthorizedGroups(self, cursor): | |
| 691 cursor.execute("SELECT groupname FROM node_groups_authorized NATURAL JOIN nodes WHERE node=%s", | |
| 692 (self.nodeDbId,)) | |
| 693 rows = cursor.fetchall() | |
| 694 return [row[0] for row in rows] | |
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695 |
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696 |
|
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697 class LeafNode(Node): |
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698 |
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699 implements(iidavoll.ILeafNode) |
| 107 | 700 |
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701 nodeType = 'leaf' |
| 107 | 702 |
| 250 | 703 def storeItems(self, item_data, publisher): |
| 704 return self.dbpool.runInteraction(self._storeItems, item_data, publisher) | |
|
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705 |
|
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706 def _storeItems(self, cursor, items_data, publisher): |
| 250 | 707 self._checkNodeExists(cursor) |
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708 for item_data in items_data: |
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709 self._storeItem(cursor, item_data, publisher) |
| 244 | 710 |
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711 def _storeItem(self, cursor, item_data, publisher): |
|
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712 item, access_model, item_config = item_data.item, item_data.access_model, item_data.config |
|
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713 data = item.toXml() |
|
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714 |
|
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715 cursor.execute("""UPDATE items SET date=now(), publisher=%s, data=%s |
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716 FROM nodes |
|
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717 WHERE nodes.node_id = items.node_id AND |
|
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718 nodes.node_id = %s and items.item=%s |
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719 RETURNING item_id""", |
|
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720 (publisher.full(), |
|
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721 data, |
|
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722 self.nodeDbId, |
|
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723 item["id"])) |
|
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724 if cursor.rowcount == 1: |
|
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725 item_id = cursor.fetchone()[0]; |
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726 self._storeCategories(cursor, item_id, item_data.categories, update=True) |
|
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727 return |
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728 |
| 244 | 729 cursor.execute("""INSERT INTO items (node_id, item, publisher, data, access_model) |
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730 SELECT %s, %s, %s, %s, %s FROM nodes |
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731 WHERE node_id=%s |
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732 RETURNING item_id""", |
|
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733 (self.nodeDbId, |
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734 item["id"], |
|
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735 publisher.full(), |
|
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736 data, |
| 244 | 737 access_model, |
|
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738 self.nodeDbId)) |
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739 |
|
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740 item_id = cursor.fetchone()[0]; |
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741 self._storeCategories(cursor, item_id, item_data.categories) |
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742 |
|
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743 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
| 250 | 744 if const.OPT_ROSTER_GROUPS_ALLOWED in item_config: |
| 745 item_config.fields[const.OPT_ROSTER_GROUPS_ALLOWED].fieldType='list-multi' #XXX: needed to force list if there is only one value | |
| 746 allowed_groups = item_config[const.OPT_ROSTER_GROUPS_ALLOWED] | |
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747 else: |
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748 allowed_groups = [] |
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749 for group in allowed_groups: |
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750 #TODO: check that group are actually in roster |
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751 cursor.execute("""INSERT INTO item_groups_authorized (item_id, groupname) |
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752 VALUES (%s,%s)""" , (item_id, group)) |
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753 # TODO: whitelist access model |
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754 |
|
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755 def _storeCategories(self, cursor, item_id, categories, update=False): |
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756 # TODO: handle canonical form |
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757 if update: |
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758 cursor.execute("""DELETE FROM item_categories |
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759 WHERE item_id=%s""", (item_id,)) |
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760 |
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761 for category in categories: |
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762 cursor.execute("""INSERT INTO item_categories (item_id, category) |
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763 VALUES (%s, %s)""", (item_id, category)) |
| 107 | 764 |
|
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765 def removeItems(self, itemIdentifiers): |
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766 return self.dbpool.runInteraction(self._removeItems, itemIdentifiers) |
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767 |
|
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768 def _removeItems(self, cursor, itemIdentifiers): |
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769 self._checkNodeExists(cursor) |
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770 |
|
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771 deleted = [] |
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772 |
|
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773 for itemIdentifier in itemIdentifiers: |
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774 cursor.execute("""DELETE FROM items WHERE |
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775 node_id=%s AND |
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776 item=%s""", |
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777 (self.nodeDbId, |
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778 itemIdentifier)) |
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779 |
|
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780 if cursor.rowcount: |
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781 deleted.append(itemIdentifier) |
|
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782 |
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783 return deleted |
| 107 | 784 |
| 278 | 785 def getItems(self, authorized_groups, unrestricted, maxItems=None, ext_data=None): |
|
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786 """ Get all authorised items |
| 346 | 787 |
|
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788 @param authorized_groups: we want to get items that these groups can access |
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789 @param unrestricted: if true, don't check permissions (i.e.: get all items) |
| 318 | 790 @param maxItems: nb of items we want to get |
| 791 @param ext_data: options for extra features like RSM and MAM | |
| 278 | 792 |
|
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793 @return: list of container.ItemData |
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794 if unrestricted is False, access_model and config will be None |
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795 """ |
| 278 | 796 if ext_data is None: |
| 797 ext_data = {} | |
| 347 | 798 return self.dbpool.runInteraction(self._getItems, authorized_groups, unrestricted, maxItems, ext_data, ids_only=False) |
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799 |
| 346 | 800 def getItemsIds(self, authorized_groups, unrestricted, maxItems=None, ext_data=None): |
| 801 """ Get all authorised items ids | |
| 802 | |
| 803 @param authorized_groups: we want to get items that these groups can access | |
| 804 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 805 @param maxItems: nb of items we want to get | |
| 806 @param ext_data: options for extra features like RSM and MAM | |
| 807 | |
| 808 @return list(unicode): list of ids | |
| 809 """ | |
| 810 if ext_data is None: | |
| 811 ext_data = {} | |
| 812 return self.dbpool.runInteraction(self._getItems, authorized_groups, unrestricted, maxItems, ext_data, ids_only=True) | |
| 813 | |
| 318 | 814 def _appendSourcesAndFilters(self, query, args, authorized_groups, unrestricted, ext_data): |
| 815 """append sources and filters to sql query requesting items and return ORDER BY | |
| 278 | 816 |
| 318 | 817 arguments query, args, authorized_groups, unrestricted and ext_data are the same as for |
| 818 _getItems | |
| 819 """ | |
| 820 # SOURCES | |
| 323 | 821 query.append("FROM nodes INNER JOIN items USING (node_id)") |
| 822 | |
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823 if unrestricted: |
| 323 | 824 query_filters = ["WHERE node_id=%s"] |
| 318 | 825 args.append(self.nodeDbId) |
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826 else: |
| 323 | 827 query.append("LEFT JOIN item_groups_authorized USING (item_id)") |
| 318 | 828 args.append(self.nodeDbId) |
| 829 if authorized_groups: | |
| 830 get_groups = " or (items.access_model='roster' and groupname in %s)" | |
| 831 args.append(authorized_groups) | |
| 832 else: | |
| 833 get_groups = "" | |
| 278 | 834 |
| 323 | 835 query_filters = ["WHERE node_id=%s AND (items.access_model='open'" + get_groups + ")"] |
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836 |
| 318 | 837 # FILTERS |
|
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838 if 'filters' in ext_data: # MAM filters |
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839 for filter_ in ext_data['filters']: |
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840 if filter_.var == 'start': |
| 323 | 841 query_filters.append("AND date>=%s") |
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842 args.append(filter_.value) |
| 323 | 843 elif filter_.var == 'end': |
| 844 query_filters.append("AND date<=%s") | |
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845 args.append(filter_.value) |
| 323 | 846 elif filter_.var == 'with': |
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847 jid_s = filter_.value |
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848 if '/' in jid_s: |
| 323 | 849 query_filters.append("AND publisher=%s") |
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850 args.append(filter_.value) |
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851 else: |
| 323 | 852 query_filters.append("AND publisher LIKE %s") |
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853 args.append(u"{}%".format(filter_.value)) |
| 323 | 854 elif filter_.var == const.MAM_FILTER_CATEGORY: |
| 855 query.append("LEFT JOIN item_categories USING (item_id)") | |
| 856 query_filters.append("AND category=%s") | |
| 857 args.append(filter_.value) | |
| 858 else: | |
| 859 log.msg("WARNING: unknown filter: {}".format(filter_.encode('utf-8'))) | |
| 860 | |
| 861 query.extend(query_filters) | |
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862 |
|
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863 return "ORDER BY item_id DESC" |
| 318 | 864 |
| 346 | 865 def _getItems(self, cursor, authorized_groups, unrestricted, maxItems, ext_data, ids_only): |
| 318 | 866 self._checkNodeExists(cursor) |
| 867 | |
| 868 if maxItems == 0: | |
| 869 return [] | |
| 870 | |
| 871 args = [] | |
| 872 | |
| 873 # SELECT | |
| 346 | 874 if ids_only: |
| 875 query = ["SELECT item"] | |
| 876 else: | |
| 877 query = ["SELECT data,items.access_model,item_id,date"] | |
| 318 | 878 |
| 879 query_order = self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 278 | 880 |
| 881 if 'rsm' in ext_data: | |
| 882 rsm = ext_data['rsm'] | |
| 883 maxItems = rsm.max | |
| 884 if rsm.index is not None: | |
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885 # We need to know the item_id of corresponding to the index (offset) of the current query |
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886 # so we execute the query to look for the item_id |
| 318 | 887 tmp_query = query[:] |
| 888 tmp_args = args[:] | |
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889 tmp_query[0] = "SELECT item_id" |
| 318 | 890 tmp_query.append("{} LIMIT 1 OFFSET %s".format(query_order)) |
| 891 tmp_args.append(rsm.index) | |
| 892 cursor.execute(' '.join(query), args) | |
| 893 # FIXME: bad index is not managed yet | |
|
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894 item_id = cursor.fetchall()[0][0] |
| 318 | 895 |
|
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896 # now that we have the id, we can use it |
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897 query.append("AND item_id<=%s") |
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898 args.append(item_id) |
| 278 | 899 elif rsm.before is not None: |
| 900 if rsm.before != '': | |
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901 query.append("AND item_id>(SELECT item_id FROM items WHERE item=%s LIMIT 1)") |
| 278 | 902 args.append(rsm.before) |
| 318 | 903 if maxItems is not None: |
| 904 # if we have maxItems (i.e. a limit), we need to reverse order | |
| 905 # in a first query to get the right items | |
| 906 query.insert(0,"SELECT * from (") | |
|
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907 query.append("ORDER BY item_id ASC LIMIT %s) as x") |
| 318 | 908 args.append(maxItems) |
| 278 | 909 elif rsm.after: |
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910 query.append("AND item_id<(SELECT item_id FROM items WHERE item=%s LIMIT 1)") |
| 278 | 911 args.append(rsm.after) |
| 912 | |
| 318 | 913 query.append(query_order) |
| 278 | 914 |
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915 if maxItems is not None: |
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916 query.append("LIMIT %s") |
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917 args.append(maxItems) |
|
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918 |
|
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919 cursor.execute(' '.join(query), args) |
|
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920 |
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921 result = cursor.fetchall() |
| 346 | 922 if unrestricted and not ids_only: |
| 318 | 923 # with unrestricted query, we need to fill the access_list for a roster access items |
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924 ret = [] |
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925 for data in result: |
|
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926 item = generic.stripNamespace(parseXml(data[0])) |
|
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927 access_model = data[1] |
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928 item_id = data[2] |
| 322 | 929 date = data[3] |
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930 access_list = {} |
|
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931 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
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932 cursor.execute('SELECT groupname FROM item_groups_authorized WHERE item_id=%s', (item_id,)) |
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933 access_list[const.OPT_ROSTER_GROUPS_ALLOWED] = [r[0] for r in cursor.fetchall()] |
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934 |
| 322 | 935 ret.append(container.ItemData(item, access_model, access_list, date=date)) |
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936 # TODO: whitelist item access model |
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937 return ret |
| 318 | 938 |
| 346 | 939 if ids_only: |
| 940 return [r[0] for r in result] | |
| 941 else: | |
| 942 items_data = [container.ItemData(generic.stripNamespace(parseXml(r[0])), r[1], r[2], date=r[3]) for r in result] | |
|
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943 return items_data |
| 107 | 944 |
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945 def getItemsById(self, authorized_groups, unrestricted, itemIdentifiers): |
|
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946 """Get items which are in the given list |
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947 |
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948 @param authorized_groups: we want to get items that these groups can access |
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949 @param unrestricted: if true, don't check permissions |
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950 @param itemIdentifiers: list of ids of the items we want to get |
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951 @return: list of container.ItemData |
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952 ItemData.config will contains access_list (managed as a dictionnary with same key as for item_config) |
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953 if unrestricted is False, access_model and config will be None |
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954 """ |
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955 return self.dbpool.runInteraction(self._getItemsById, authorized_groups, unrestricted, itemIdentifiers) |
|
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956 |
|
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957 def _getItemsById(self, cursor, authorized_groups, unrestricted, itemIdentifiers): |
|
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958 self._checkNodeExists(cursor) |
|
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959 ret = [] |
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960 if unrestricted: #we get everything without checking permissions |
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961 for itemIdentifier in itemIdentifiers: |
| 322 | 962 cursor.execute("""SELECT data,items.access_model,item_id,date FROM nodes |
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963 INNER JOIN items USING (node_id) |
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964 WHERE node_id=%s AND item=%s""", |
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965 (self.nodeDbId, |
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966 itemIdentifier)) |
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967 result = cursor.fetchone() |
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968 if not result: |
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969 raise error.ItemNotFound() |
| 107 | 970 |
|
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971 item = generic.stripNamespace(parseXml(result[0])) |
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972 access_model = result[1] |
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973 item_id = result[2] |
| 322 | 974 date= result[3] |
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975 access_list = {} |
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976 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
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977 cursor.execute('SELECT groupname FROM item_groups_authorized WHERE item_id=%s', (item_id,)) |
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978 access_list[const.OPT_ROSTER_GROUPS_ALLOWED] = [r[0] for r in cursor.fetchall()] |
|
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979 #TODO: WHITELIST access_model |
|
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980 |
| 322 | 981 ret.append(container.ItemData(item, access_model, access_list, date=date)) |
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982 else: #we check permission before returning items |
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983 for itemIdentifier in itemIdentifiers: |
|
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984 args = [self.nodeDbId, itemIdentifier] |
|
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985 if authorized_groups: |
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986 args.append(authorized_groups) |
| 322 | 987 cursor.execute("""SELECT data, date FROM nodes |
|
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988 INNER JOIN items USING (node_id) |
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989 LEFT JOIN item_groups_authorized USING (item_id) |
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990 WHERE node_id=%s AND item=%s AND |
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991 (items.access_model='open' """ + |
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992 ("or (items.access_model='roster' and groupname in %s)" if authorized_groups else '') + ")", |
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993 args) |
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994 |
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995 result = cursor.fetchone() |
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996 if result: |
| 322 | 997 ret.append(container.ItemData(generic.stripNamespace(parseXml(result[0])), date=result[1])) |
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998 |
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999 return ret |
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1000 |
| 318 | 1001 def getItemsCount(self, authorized_groups, unrestricted, ext_data=None): |
| 1002 """Count expected number of items in a getItems query | |
| 1003 | |
| 1004 @param authorized_groups: we want to get items that these groups can access | |
| 1005 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1006 @param ext_data: options for extra features like RSM and MAM | |
| 1007 """ | |
| 1008 if ext_data is None: | |
| 1009 ext_data = {} | |
| 1010 return self.dbpool.runInteraction(self._getItemsCount, authorized_groups, unrestricted, ext_data) | |
| 1011 | |
| 1012 def _getItemsCount(self, cursor, authorized_groups, unrestricted, ext_data): | |
| 1013 self._checkNodeExists(cursor) | |
| 1014 args = [] | |
| 1015 | |
| 1016 # SELECT | |
| 1017 query = ["SELECT count(1)"] | |
| 1018 | |
| 1019 self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 1020 | |
| 1021 cursor.execute(' '.join(query), args) | |
| 1022 return cursor.fetchall()[0][0] | |
| 1023 | |
| 1024 def getItemsIndex(self, item_id, authorized_groups, unrestricted, ext_data=None): | |
| 1025 """Get expected index of first item in the window of a getItems query | |
| 1026 | |
| 1027 @param item_id: id of the item | |
| 1028 @param authorized_groups: we want to get items that these groups can access | |
| 1029 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1030 @param ext_data: options for extra features like RSM and MAM | |
| 1031 """ | |
| 1032 if ext_data is None: | |
| 1033 ext_data = {} | |
| 1034 return self.dbpool.runInteraction(self._getItemsIndex, item_id, authorized_groups, unrestricted, ext_data) | |
| 1035 | |
| 1036 def _getItemsIndex(self, cursor, item_id, authorized_groups, unrestricted, ext_data): | |
| 1037 self._checkNodeExists(cursor) | |
| 1038 args = [] | |
| 1039 | |
| 1040 # SELECT | |
| 1041 query = [] | |
| 1042 | |
| 1043 query_order = self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 1044 | |
| 1045 query_select = "SELECT row_number from (SELECT row_number() OVER ({}), item".format(query_order) | |
| 1046 query.insert(0, query_select) | |
| 1047 query.append(") as x WHERE item=%s") | |
| 1048 args.append(item_id) | |
| 1049 | |
| 1050 cursor.execute(' '.join(query), args) | |
| 1051 # XXX: row_number start at 1, but we want that index start at 0 | |
|
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1052 try: |
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1053 return cursor.fetchall()[0][0] - 1 |
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1054 except IndexError: |
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1055 raise error.NodeNotFound() |
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1056 |
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1057 def getItemsPublishers(self, itemIdentifiers): |
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1058 """Get the publishers for all given identifiers |
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1059 |
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1060 @return (dict[unicode, jid.JID]): map of itemIdentifiers to publisher |
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1061 if item is not found, key is skipped in resulting dict |
|
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1062 """ |
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1063 return self.dbpool.runInteraction(self._getItemsPublishers, itemIdentifiers) |
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1064 |
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1065 def _getItemsPublishers(self, cursor, itemIdentifiers): |
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1066 self._checkNodeExists(cursor) |
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1067 ret = {} |
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1068 for itemIdentifier in itemIdentifiers: |
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1069 cursor.execute("""SELECT publisher FROM items |
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1070 WHERE item=%s""", |
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1071 (itemIdentifier,)) |
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1072 result = cursor.fetchone() |
|
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1073 if result: |
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1074 ret[itemIdentifier] = jid.JID(result[0]) |
|
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1075 return ret |
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1076 |
| 107 | 1077 def purge(self): |
|
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1078 return self.dbpool.runInteraction(self._purge) |
|
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1079 |
|
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1080 def _purge(self, cursor): |
|
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1081 self._checkNodeExists(cursor) |
|
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1082 |
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1083 cursor.execute("""DELETE FROM items WHERE |
|
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1084 node_id=%s""", |
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1085 (self.nodeDbId,)) |
|
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1086 |
|
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1087 |
|
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1088 class CollectionNode(Node): |
|
146
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1089 |
|
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1090 nodeType = 'collection' |
|
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1091 |
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1092 |
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1093 |
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1094 class GatewayStorage(object): |
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1095 """ |
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1096 Memory based storage facility for the XMPP-HTTP gateway. |
|
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1097 """ |
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1098 |
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1099 def __init__(self, dbpool): |
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1100 self.dbpool = dbpool |
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1101 |
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1102 def _countCallbacks(self, cursor, service, nodeIdentifier): |
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1103 """ |
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1104 Count number of callbacks registered for a node. |
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1105 """ |
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1106 cursor.execute("""SELECT count(*) FROM callbacks |
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1107 WHERE service=%s and node=%s""", |
|
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1108 (service.full(), |
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1109 nodeIdentifier)) |
|
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1110 results = cursor.fetchall() |
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1111 return results[0][0] |
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1112 |
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1113 def addCallback(self, service, nodeIdentifier, callback): |
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1114 def interaction(cursor): |
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1115 cursor.execute("""SELECT 1 as bool FROM callbacks |
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1116 WHERE service=%s and node=%s and uri=%s""", |
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1117 (service.full(), |
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1118 nodeIdentifier, |
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1119 callback)) |
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1120 if cursor.fetchall(): |
|
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1121 return |
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1122 |
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1123 cursor.execute("""INSERT INTO callbacks |
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1124 (service, node, uri) VALUES |
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1125 (%s, %s, %s)""", |
|
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1126 (service.full(), |
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1127 nodeIdentifier, |
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1128 callback)) |
|
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1129 |
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1130 return self.dbpool.runInteraction(interaction) |
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1131 |
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1132 def removeCallback(self, service, nodeIdentifier, callback): |
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1133 def interaction(cursor): |
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1134 cursor.execute("""DELETE FROM callbacks |
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1135 WHERE service=%s and node=%s and uri=%s""", |
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1136 (service.full(), |
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1137 nodeIdentifier, |
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1138 callback)) |
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1139 |
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1140 if cursor.rowcount != 1: |
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1141 raise error.NotSubscribed() |
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1142 |
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1143 last = not self._countCallbacks(cursor, service, nodeIdentifier) |
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1144 return last |
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1145 |
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1146 return self.dbpool.runInteraction(interaction) |
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1147 |
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1148 def getCallbacks(self, service, nodeIdentifier): |
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1149 def interaction(cursor): |
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1150 cursor.execute("""SELECT uri FROM callbacks |
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1151 WHERE service=%s and node=%s""", |
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1152 (service.full(), |
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1153 nodeIdentifier)) |
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1154 results = cursor.fetchall() |
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1155 |
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1156 if not results: |
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1157 raise error.NoCallbacks() |
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1158 |
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1159 return [result[0] for result in results] |
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1160 |
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1161 return self.dbpool.runInteraction(interaction) |
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1162 |
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1163 def hasCallbacks(self, service, nodeIdentifier): |
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1164 def interaction(cursor): |
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1165 return bool(self._countCallbacks(cursor, service, nodeIdentifier)) |
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1166 |
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1167 return self.dbpool.runInteraction(interaction) |