Mercurial > libervia-pubsub
annotate sat_pubsub/pgsql_storage.py @ 364:8bd8be6815ab
completed docstrings + use short notation for sets
| author | Arnaud Joset <info@agayon.be> |
|---|---|
| date | Fri, 03 Nov 2017 13:59:54 +0100 |
| parents | 1167e48e5f52 |
| children | 9fbb31ce495b |
| 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 = '3' |
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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(bool): True if we are in PEP mode |
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87 @param recipient(jid.JID): 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 } |
| 352 | 150 schema = row[8] |
| 151 if schema is not None: | |
| 152 schema = parseXml(schema) | |
| 153 node = LeafNode(row[0], row[1], configuration, schema) | |
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154 node.dbpool = self.dbpool |
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155 return node |
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156 elif row[2] == 'collection': |
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157 configuration = { |
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158 'pubsub#deliver_payloads': row[4], |
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159 'pubsub#send_last_published_item': row[5], |
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160 const.OPT_ACCESS_MODEL: row[6], |
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161 const.OPT_PUBLISH_MODEL:row[7], |
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162 } |
| 352 | 163 node = CollectionNode(row[0], row[1], configuration, None) |
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164 node.dbpool = self.dbpool |
| 107 | 165 return node |
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166 else: |
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167 raise ValueError("Unknown node type !") |
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168 |
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169 def getNodeById(self, nodeDbId): |
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170 """Get node using database ID insted of pubsub identifier |
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171 |
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172 @param nodeDbId(unicode): database ID |
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173 """ |
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174 return self.dbpool.runInteraction(self._getNodeById, nodeDbId) |
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175 |
|
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176 def _getNodeById(self, cursor, nodeDbId): |
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177 cursor.execute("""SELECT node_id, |
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178 node, |
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179 node_type, |
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180 persist_items, |
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181 deliver_payloads, |
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182 send_last_published_item, |
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183 access_model, |
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184 publish_model, |
| 352 | 185 schema::text, |
|
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186 pep |
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187 FROM nodes |
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188 WHERE node_id=%s""", |
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189 (nodeDbId,)) |
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190 row = cursor.fetchone() |
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191 return self._buildNode(row) |
|
198
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192 |
|
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193 def getNode(self, nodeIdentifier, pep, recipient=None): |
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194 return self.dbpool.runInteraction(self._getNode, nodeIdentifier, pep, recipient) |
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195 |
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196 def _getNode(self, cursor, nodeIdentifier, pep, recipient): |
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197 cursor.execute(*withPEP("""SELECT node_id, |
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198 node, |
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199 node_type, |
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200 persist_items, |
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201 deliver_payloads, |
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202 send_last_published_item, |
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203 access_model, |
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204 publish_model, |
| 352 | 205 schema::text, |
|
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206 pep |
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207 FROM nodes |
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208 WHERE node=%s""", |
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209 (nodeIdentifier,), pep, recipient)) |
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210 row = cursor.fetchone() |
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211 return self._buildNode(row) |
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212 |
|
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213 def getNodeIds(self, pep, recipient, allowed_accesses=None): |
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214 """retrieve ids of existing nodes |
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215 |
|
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216 @param pep(bool): True if it's a PEP request |
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217 @param recipient(jid.JID, None): recipient of the PEP request |
|
349
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218 @param allowed_accesses(None, set): only nodes with access |
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219 in this set will be returned |
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220 None to return all nodes |
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221 @return (list[unicode]): ids of nodes |
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222 """ |
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223 if not pep: |
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224 query = "SELECT node from nodes WHERE pep is NULL" |
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225 values = [] |
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226 else: |
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227 query = "SELECT node from nodes WHERE pep=%s" |
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228 values = [recipient.userhost()] |
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229 |
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230 if allowed_accesses is not None: |
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231 query += "AND access_model IN %s" |
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232 values.append(tuple(allowed_accesses)) |
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233 |
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234 d = self.dbpool.runQuery(query, values) |
| 107 | 235 d.addCallback(lambda results: [r[0] for r in results]) |
| 236 return d | |
| 237 | |
| 352 | 238 def createNode(self, nodeIdentifier, owner, config, schema, pep, recipient=None): |
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239 return self.dbpool.runInteraction(self._createNode, nodeIdentifier, |
| 352 | 240 owner, config, schema, pep, recipient) |
|
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241 |
| 352 | 242 def _createNode(self, cursor, nodeIdentifier, owner, config, schema, pep, recipient): |
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243 if config['pubsub#node_type'] != 'leaf': |
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244 raise error.NoCollections() |
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245 |
|
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246 owner = owner.userhost() |
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247 |
| 107 | 248 try: |
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249 cursor.execute("""INSERT INTO nodes |
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250 (node, node_type, persist_items, |
| 352 | 251 deliver_payloads, send_last_published_item, access_model, publish_model, schema, pep) |
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252 VALUES |
| 352 | 253 (%s, 'leaf', %s, %s, %s, %s, %s, %s, %s)""", |
|
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254 (nodeIdentifier, |
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255 config['pubsub#persist_items'], |
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256 config['pubsub#deliver_payloads'], |
|
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257 config['pubsub#send_last_published_item'], |
|
259
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258 config[const.OPT_ACCESS_MODEL], |
| 260 | 259 config[const.OPT_PUBLISH_MODEL], |
| 352 | 260 schema, |
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261 recipient.userhost() if pep else None |
|
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262 ) |
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263 ) |
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264 except cursor._pool.dbapi.IntegrityError as e: |
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265 if e.pgcode == "23505": |
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266 # unique_violation |
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267 raise error.NodeExists() |
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268 else: |
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269 raise error.InvalidConfigurationOption() |
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270 |
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271 cursor.execute(*withPEP("""SELECT node_id FROM nodes WHERE node=%s""", |
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272 (nodeIdentifier,), pep, recipient)); |
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273 node_id = cursor.fetchone()[0] |
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274 |
|
276
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275 cursor.execute("""SELECT 1 as bool from entities where jid=%s""", |
|
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276 (owner,)) |
| 107 | 277 |
| 278 if not cursor.fetchone(): | |
|
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279 # XXX: we can NOT rely on the previous query! Commit is needed now because |
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280 # if the entry exists the next query will leave the database in a corrupted |
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281 # state: the solution is to rollback. I tried with other methods like |
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282 # "WHERE NOT EXISTS" but none of them worked, so the following solution |
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283 # looks like the sole - unless you have auto-commit on. More info |
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284 # about this issue: http://cssmay.com/question/tag/tag-psycopg2 |
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285 cursor._connection.commit() |
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286 try: |
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287 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", |
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288 (owner,)) |
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289 except psycopg2.IntegrityError as e: |
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290 cursor._connection.rollback() |
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291 logging.warning("during node creation: %s" % e.message) |
| 107 | 292 |
| 293 cursor.execute("""INSERT INTO affiliations | |
| 294 (node_id, entity_id, affiliation) | |
|
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295 SELECT %s, entity_id, 'owner' FROM |
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296 (SELECT entity_id FROM entities |
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297 WHERE jid=%s) as e""", |
|
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298 (node_id, owner)) |
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299 |
|
330
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300 if config[const.OPT_ACCESS_MODEL] == const.VAL_AMODEL_PUBLISHER_ROSTER: |
|
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301 if const.OPT_ROSTER_GROUPS_ALLOWED in config: |
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302 allowed_groups = config[const.OPT_ROSTER_GROUPS_ALLOWED] |
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303 else: |
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304 allowed_groups = [] |
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305 for group in allowed_groups: |
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306 #TODO: check that group are actually in roster |
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307 cursor.execute("""INSERT INTO node_groups_authorized (node_id, groupname) |
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308 VALUES (%s,%s)""" , (node_id, group)) |
|
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309 # XXX: affiliations can't be set on during node creation (at least not with XEP-0060 alone) |
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310 # so whitelist affiliations need to be done afterward |
|
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311 |
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312 def deleteNodeByDbId(self, db_id): |
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313 """Delete a node using directly its database id""" |
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314 return self.dbpool.runInteraction(self._deleteNodeByDbId, db_id) |
| 107 | 315 |
|
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316 def _deleteNodeByDbId(self, cursor, db_id): |
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317 cursor.execute("""DELETE FROM nodes WHERE node_id=%s""", |
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318 (db_id,)) |
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319 |
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320 if cursor.rowcount != 1: |
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321 raise error.NodeNotFound() |
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322 |
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323 def deleteNode(self, nodeIdentifier, pep, recipient=None): |
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324 return self.dbpool.runInteraction(self._deleteNode, nodeIdentifier, pep, recipient) |
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325 |
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326 def _deleteNode(self, cursor, nodeIdentifier, pep, recipient): |
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327 cursor.execute(*withPEP("""DELETE FROM nodes WHERE node=%s""", |
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328 (nodeIdentifier,), pep, recipient)) |
| 107 | 329 |
| 330 if cursor.rowcount != 1: | |
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331 raise error.NodeNotFound() |
| 107 | 332 |
| 331 | 333 def getAffiliations(self, entity, nodeIdentifier, pep, recipient=None): |
| 334 return self.dbpool.runInteraction(self._getAffiliations, entity, nodeIdentifier, pep, recipient) | |
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335 |
| 331 | 336 def _getAffiliations(self, cursor, entity, nodeIdentifier, pep, recipient=None): |
| 337 query = ["""SELECT node, affiliation FROM entities | |
| 338 NATURAL JOIN affiliations | |
| 339 NATURAL JOIN nodes | |
| 340 WHERE jid=%s"""] | |
| 341 args = [entity.userhost()] | |
| 342 | |
| 343 if nodeIdentifier is not None: | |
| 344 query.append("AND node=%s") | |
| 345 args.append(nodeIdentifier) | |
| 346 | |
| 347 cursor.execute(*withPEP(' '.join(query), args, pep, recipient)) | |
| 348 rows = cursor.fetchall() | |
| 349 return [tuple(r) for r in rows] | |
| 107 | 350 |
|
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351 def getSubscriptions(self, entity, nodeIdentifier=None, pep=False, recipient=None): |
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352 """retrieve subscriptions of an entity |
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353 |
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354 @param entity(jid.JID): entity to check |
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355 @param nodeIdentifier(unicode, None): node identifier |
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356 None to retrieve all subscriptions |
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357 @param pep: True if we are in PEP mode |
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358 @param recipient: jid of the recipient |
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359 """ |
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360 |
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361 def toSubscriptions(rows): |
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362 subscriptions = [] |
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363 for row in rows: |
|
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364 subscriber = jid.internJID('%s/%s' % (row.jid, |
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365 row.resource)) |
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366 subscription = Subscription(row.node, subscriber, row.state) |
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367 subscriptions.append(subscription) |
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368 return subscriptions |
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369 |
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370 query = ["""SELECT node, |
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371 jid, |
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372 resource, |
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373 state |
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374 FROM entities |
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375 NATURAL JOIN subscriptions |
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376 NATURAL JOIN nodes |
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377 WHERE jid=%s"""] |
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378 |
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379 args = [entity.userhost()] |
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380 |
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381 if nodeIdentifier is not None: |
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382 query.append("AND node=%s") |
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383 args.append(nodeIdentifier) |
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384 |
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385 d = self.dbpool.runQuery(*withPEP(' '.join(query), args, pep, recipient)) |
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386 d.addCallback(toSubscriptions) |
| 107 | 387 return d |
| 388 | |
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389 def getDefaultConfiguration(self, nodeType): |
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390 return self.defaultConfig[nodeType] |
| 107 | 391 |
|
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392 def formatLastItems(self, result): |
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393 last_items = [] |
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394 for pep_jid_s, node, data, item_access_model in result: |
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395 pep_jid = jid.JID(pep_jid_s) |
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396 item = generic.stripNamespace(parseXml(data)) |
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397 last_items.append((pep_jid, node, item, item_access_model)) |
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398 return last_items |
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399 |
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400 def getLastItems(self, entities, nodes, node_accesses, item_accesses, pep): |
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401 """get last item for several nodes and entities in a single request""" |
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402 if not entities or not nodes or not node_accesses or not item_accesses: |
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403 raise ValueError("entities, nodes and accesses must not be empty") |
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404 if node_accesses != ('open',) or item_accesses != ('open',): |
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405 raise NotImplementedError('only "open" access model is handled for now') |
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406 if not pep: |
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407 raise NotImplementedError(u"getLastItems is only implemented for PEP at the moment") |
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351
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408 d = self.dbpool.runQuery("""SELECT DISTINCT ON (node_id) pep, node, data::text, items.access_model |
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409 FROM items |
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410 NATURAL JOIN nodes |
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411 WHERE nodes.pep IN %s |
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412 AND node IN %s |
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413 AND nodes.access_model in %s |
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414 AND items.access_model in %s |
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415 ORDER BY node_id DESC, item_id DESC""", |
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416 (tuple([e.userhost() for e in entities]), |
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417 nodes, |
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418 node_accesses, |
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419 item_accesses)) |
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420 d.addCallback(self.formatLastItems) |
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421 return d |
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422 |
|
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423 |
| 107 | 424 class Node: |
| 425 | |
|
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426 implements(iidavoll.INode) |
| 107 | 427 |
| 352 | 428 def __init__(self, nodeDbId, nodeIdentifier, config, schema): |
|
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429 self.nodeDbId = nodeDbId |
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430 self.nodeIdentifier = nodeIdentifier |
| 107 | 431 self._config = config |
| 352 | 432 self._schema = schema |
| 107 | 433 |
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434 def _checkNodeExists(self, cursor): |
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435 cursor.execute("""SELECT 1 as exist FROM nodes WHERE node_id=%s""", |
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436 (self.nodeDbId,)) |
|
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437 if not cursor.fetchone(): |
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438 raise error.NodeNotFound() |
|
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439 |
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440 def getType(self): |
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441 return self.nodeType |
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442 |
|
330
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443 def getOwners(self): |
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444 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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445 d.addCallback(lambda rows: [jid.JID(r[0]) for r in rows]) |
|
243
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446 return d |
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447 |
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448 def getConfiguration(self): |
| 107 | 449 return self._config |
| 450 | |
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451 def setConfiguration(self, options): |
|
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452 config = copy.copy(self._config) |
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453 |
| 107 | 454 for option in options: |
|
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455 if option in config: |
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456 config[option] = options[option] |
|
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457 |
|
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458 d = self.dbpool.runInteraction(self._setConfiguration, config) |
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459 d.addCallback(self._setCachedConfiguration, config) |
|
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460 return d |
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461 |
|
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462 def _setConfiguration(self, cursor, config): |
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463 self._checkNodeExists(cursor) |
|
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464 cursor.execute("""UPDATE nodes SET persist_items=%s, |
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465 deliver_payloads=%s, |
|
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466 send_last_published_item=%s, |
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467 access_model=%s, |
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468 publish_model=%s |
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469 WHERE node_id=%s""", |
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470 (config[const.OPT_PERSIST_ITEMS], |
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471 config[const.OPT_DELIVER_PAYLOADS], |
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472 config[const.OPT_SEND_LAST_PUBLISHED_ITEM], |
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473 config[const.OPT_ACCESS_MODEL], |
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474 config[const.OPT_PUBLISH_MODEL], |
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475 self.nodeDbId)) |
| 107 | 476 |
|
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477 def _setCachedConfiguration(self, void, config): |
|
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478 self._config = config |
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479 |
| 352 | 480 def getSchema(self): |
| 481 return self._schema | |
| 482 | |
| 483 def setSchema(self, schema): | |
| 484 d = self.dbpool.runInteraction(self._setSchema, schema) | |
| 485 d.addCallback(self._setCachedSchema, schema) | |
| 486 return d | |
| 487 | |
| 488 def _setSchema(self, cursor, schema): | |
| 489 self._checkNodeExists(cursor) | |
| 490 cursor.execute("""UPDATE nodes SET schema=%s | |
| 491 WHERE node_id=%s""", | |
| 492 (schema.toXml() if schema else None, | |
| 493 self.nodeDbId)) | |
| 494 | |
| 495 def _setCachedSchema(self, void, schema): | |
| 496 self._schema = schema | |
| 497 | |
|
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498 def getMetaData(self): |
| 107 | 499 config = copy.copy(self._config) |
|
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500 config["pubsub#node_type"] = self.nodeType |
| 107 | 501 return config |
| 502 | |
|
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503 def getAffiliation(self, entity): |
|
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504 return self.dbpool.runInteraction(self._getAffiliation, entity) |
| 107 | 505 |
|
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506 def _getAffiliation(self, cursor, entity): |
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507 self._checkNodeExists(cursor) |
| 107 | 508 cursor.execute("""SELECT affiliation FROM affiliations |
|
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509 NATURAL JOIN nodes |
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510 NATURAL JOIN entities |
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511 WHERE node_id=%s AND jid=%s""", |
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512 (self.nodeDbId, |
|
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|
513 entity.userhost())) |
| 107 | 514 |
| 515 try: | |
| 516 return cursor.fetchone()[0] | |
| 517 except TypeError: | |
| 518 return None | |
| 519 | |
|
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520 def getAccessModel(self): |
|
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521 return self._config[const.OPT_ACCESS_MODEL] |
|
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522 |
|
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523 def getSubscription(self, subscriber): |
|
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524 return self.dbpool.runInteraction(self._getSubscription, subscriber) |
|
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525 |
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526 def _getSubscription(self, cursor, subscriber): |
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527 self._checkNodeExists(cursor) |
|
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528 |
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529 userhost = subscriber.userhost() |
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530 resource = subscriber.resource or '' |
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531 |
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532 cursor.execute("""SELECT state FROM subscriptions |
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533 NATURAL JOIN nodes |
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534 NATURAL JOIN entities |
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535 WHERE node_id=%s AND jid=%s AND resource=%s""", |
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536 (self.nodeDbId, |
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537 userhost, |
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538 resource)) |
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539 |
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540 row = cursor.fetchone() |
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541 if not row: |
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542 return None |
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543 else: |
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544 return Subscription(self.nodeIdentifier, subscriber, row[0]) |
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545 |
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546 def getSubscriptions(self, state=None): |
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547 return self.dbpool.runInteraction(self._getSubscriptions, state) |
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548 |
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549 def _getSubscriptions(self, cursor, state): |
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550 self._checkNodeExists(cursor) |
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551 |
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552 query = """SELECT node, jid, resource, state, |
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553 subscription_type, subscription_depth |
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554 FROM subscriptions |
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555 NATURAL JOIN nodes |
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556 NATURAL JOIN entities |
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557 WHERE node_id=%s""" |
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558 values = [self.nodeDbId] |
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559 |
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560 if state: |
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561 query += " AND state=%s" |
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562 values.append(state) |
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563 |
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564 cursor.execute(query, values) |
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565 rows = cursor.fetchall() |
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566 |
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567 subscriptions = [] |
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568 for row in rows: |
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569 subscriber = jid.JID(u'%s/%s' % (row.jid, row.resource)) |
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570 |
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571 options = {} |
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572 if row.subscription_type: |
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573 options['pubsub#subscription_type'] = row.subscription_type; |
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574 if row.subscription_depth: |
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575 options['pubsub#subscription_depth'] = row.subscription_depth; |
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576 |
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577 subscriptions.append(Subscription(row.node, subscriber, |
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578 row.state, options)) |
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579 |
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580 return subscriptions |
| 107 | 581 |
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582 def addSubscription(self, subscriber, state, config): |
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583 return self.dbpool.runInteraction(self._addSubscription, subscriber, |
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584 state, config) |
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585 |
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586 def _addSubscription(self, cursor, subscriber, state, config): |
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587 self._checkNodeExists(cursor) |
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588 |
| 107 | 589 userhost = subscriber.userhost() |
| 590 resource = subscriber.resource or '' | |
| 591 | |
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592 subscription_type = config.get('pubsub#subscription_type') |
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593 subscription_depth = config.get('pubsub#subscription_depth') |
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594 |
| 107 | 595 try: |
| 596 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", | |
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597 (userhost,)) |
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598 except cursor._pool.dbapi.IntegrityError: |
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599 cursor._connection.rollback() |
| 107 | 600 |
| 601 try: | |
| 602 cursor.execute("""INSERT INTO subscriptions | |
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603 (node_id, entity_id, resource, state, |
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604 subscription_type, subscription_depth) |
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605 SELECT %s, entity_id, %s, %s, %s, %s FROM |
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606 (SELECT entity_id FROM entities |
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607 WHERE jid=%s) AS ent_id""", |
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608 (self.nodeDbId, |
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609 resource, |
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610 state, |
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611 subscription_type, |
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612 subscription_depth, |
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613 userhost)) |
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614 except cursor._pool.dbapi.IntegrityError: |
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615 raise error.SubscriptionExists() |
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616 |
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617 def removeSubscription(self, subscriber): |
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618 return self.dbpool.runInteraction(self._removeSubscription, |
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619 subscriber) |
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620 |
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621 def _removeSubscription(self, cursor, subscriber): |
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622 self._checkNodeExists(cursor) |
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623 |
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624 userhost = subscriber.userhost() |
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625 resource = subscriber.resource or '' |
| 107 | 626 |
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627 cursor.execute("""DELETE FROM subscriptions WHERE |
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628 node_id=%s AND |
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629 entity_id=(SELECT entity_id FROM entities |
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630 WHERE jid=%s) AND |
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631 resource=%s""", |
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632 (self.nodeDbId, |
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633 userhost, |
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634 resource)) |
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635 if cursor.rowcount != 1: |
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636 raise error.NotSubscribed() |
| 107 | 637 |
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638 return None |
| 107 | 639 |
|
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640 def setSubscriptions(self, subscriptions): |
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641 return self.dbpool.runInteraction(self._setSubscriptions, subscriptions) |
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642 |
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643 def _setSubscriptions(self, cursor, subscriptions): |
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644 self._checkNodeExists(cursor) |
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645 |
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646 entities = self.getOrCreateEntities(cursor, [s.subscriber for s in subscriptions]) |
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647 entities_map = {jid.JID(e.jid): e for e in entities} |
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648 |
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649 # then we construct values for subscriptions update according to entity_id we just got |
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650 placeholders = ','.join(len(subscriptions) * ["%s"]) |
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651 values = [] |
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652 for subscription in subscriptions: |
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653 entity_id = entities_map[subscription.subscriber].entity_id |
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654 resource = subscription.subscriber.resource or u'' |
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655 values.append((self.nodeDbId, entity_id, resource, subscription.state, None, None)) |
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656 # 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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657 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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658 |
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659 def isSubscribed(self, entity): |
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660 return self.dbpool.runInteraction(self._isSubscribed, entity) |
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661 |
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662 def _isSubscribed(self, cursor, entity): |
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663 self._checkNodeExists(cursor) |
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664 |
|
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665 cursor.execute("""SELECT 1 as bool FROM entities |
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666 NATURAL JOIN subscriptions |
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667 NATURAL JOIN nodes |
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668 WHERE entities.jid=%s |
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669 AND node_id=%s AND state='subscribed'""", |
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670 (entity.userhost(), |
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671 self.nodeDbId)) |
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672 |
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673 return cursor.fetchone() is not None |
| 107 | 674 |
|
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675 def getAffiliations(self): |
|
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676 return self.dbpool.runInteraction(self._getAffiliations) |
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677 |
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678 def _getAffiliations(self, cursor): |
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679 self._checkNodeExists(cursor) |
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680 |
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681 cursor.execute("""SELECT jid, affiliation FROM nodes |
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682 NATURAL JOIN affiliations |
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683 NATURAL JOIN entities |
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684 WHERE node_id=%s""", |
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685 (self.nodeDbId,)) |
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686 result = cursor.fetchall() |
|
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687 |
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688 return {jid.internJID(r[0]): r[1] for r in result} |
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689 |
| 331 | 690 def getOrCreateEntities(self, cursor, entities_jids): |
| 691 """Get entity_id from entities in entities table | |
| 692 | |
| 693 Entities will be inserted it they don't exist | |
| 694 @param entities_jid(list[jid.JID]): entities to get or create | |
|
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695 @return list[record(entity_id,jid)]]: list of entity_id and jid (as plain string) |
| 331 | 696 both existing and inserted entities are returned |
| 697 """ | |
| 698 # cf. http://stackoverflow.com/a/35265559 | |
| 699 placeholders = ','.join(len(entities_jids) * ["(%s)"]) | |
| 700 query = ( | |
| 701 """ | |
| 702 WITH | |
| 703 jid_values (jid) AS ( | |
| 704 VALUES {placeholders} | |
| 705 ), | |
| 706 inserted (entity_id, jid) AS ( | |
| 707 INSERT INTO entities (jid) | |
| 708 SELECT jid | |
| 709 FROM jid_values | |
| 710 ON CONFLICT DO NOTHING | |
| 711 RETURNING entity_id, jid | |
| 712 ) | |
| 713 SELECT e.entity_id, e.jid | |
| 714 FROM entities e JOIN jid_values jv ON jv.jid = e.jid | |
| 715 UNION ALL | |
| 716 SELECT entity_id, jid | |
| 717 FROM inserted""".format(placeholders=placeholders)) | |
| 718 cursor.execute(query, [j.userhost() for j in entities_jids]) | |
| 719 return cursor.fetchall() | |
| 720 | |
| 721 def setAffiliations(self, affiliations): | |
| 722 return self.dbpool.runInteraction(self._setAffiliations, affiliations) | |
| 723 | |
| 724 def _setAffiliations(self, cursor, affiliations): | |
| 725 self._checkNodeExists(cursor) | |
| 726 | |
| 727 entities = self.getOrCreateEntities(cursor, affiliations) | |
| 728 | |
| 729 # then we construct values for affiliations update according to entity_id we just got | |
| 730 placeholders = ','.join(len(affiliations) * ["(%s,%s,%s)"]) | |
| 731 values = [] | |
| 732 map(values.extend, ((e.entity_id, affiliations[jid.JID(e.jid)], self.nodeDbId) for e in entities)) | |
| 733 | |
| 734 # we use upsert so new values are inserted and existing one updated. This feature is only available for PostgreSQL >= 9.5 | |
| 735 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) | |
| 736 | |
| 737 def deleteAffiliations(self, entities): | |
| 738 return self.dbpool.runInteraction(self._deleteAffiliations, entities) | |
| 739 | |
| 740 def _deleteAffiliations(self, cursor, entities): | |
| 741 """delete affiliations and subscriptions for this entity""" | |
| 742 self._checkNodeExists(cursor) | |
| 743 placeholders = ','.join(len(entities) * ["%s"]) | |
| 744 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]) | |
| 745 | |
| 746 rows = cursor.fetchall() | |
| 747 placeholders = ','.join(len(rows) * ["%s"]) | |
| 748 cursor.execute("DELETE FROM subscriptions WHERE node_id=%s AND entity_id in (" + placeholders + ")", [self.nodeDbId] + [r[0] for r in rows]) | |
| 749 | |
| 750 def getAuthorizedGroups(self): | |
| 751 return self.dbpool.runInteraction(self._getNodeGroups) | |
| 752 | |
| 753 def _getAuthorizedGroups(self, cursor): | |
| 754 cursor.execute("SELECT groupname FROM node_groups_authorized NATURAL JOIN nodes WHERE node=%s", | |
| 755 (self.nodeDbId,)) | |
| 756 rows = cursor.fetchall() | |
| 757 return [row[0] for row in rows] | |
|
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758 |
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759 |
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760 class LeafNode(Node): |
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761 |
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762 implements(iidavoll.ILeafNode) |
| 107 | 763 |
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764 nodeType = 'leaf' |
| 107 | 765 |
| 250 | 766 def storeItems(self, item_data, publisher): |
| 767 return self.dbpool.runInteraction(self._storeItems, item_data, publisher) | |
|
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768 |
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769 def _storeItems(self, cursor, items_data, publisher): |
| 250 | 770 self._checkNodeExists(cursor) |
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771 for item_data in items_data: |
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772 self._storeItem(cursor, item_data, publisher) |
| 244 | 773 |
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774 def _storeItem(self, cursor, item_data, publisher): |
|
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775 item, access_model, item_config = item_data.item, item_data.access_model, item_data.config |
|
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776 data = item.toXml() |
|
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777 |
|
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778 cursor.execute("""UPDATE items SET date=now(), publisher=%s, data=%s |
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779 FROM nodes |
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780 WHERE nodes.node_id = items.node_id AND |
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781 nodes.node_id = %s and items.item=%s |
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782 RETURNING item_id""", |
|
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783 (publisher.full(), |
|
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784 data, |
|
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785 self.nodeDbId, |
|
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786 item["id"])) |
|
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787 if cursor.rowcount == 1: |
|
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788 item_id = cursor.fetchone()[0]; |
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789 self._storeCategories(cursor, item_id, item_data.categories, update=True) |
|
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790 return |
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791 |
| 244 | 792 cursor.execute("""INSERT INTO items (node_id, item, publisher, data, access_model) |
|
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793 SELECT %s, %s, %s, %s, %s FROM nodes |
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794 WHERE node_id=%s |
|
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795 RETURNING item_id""", |
|
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796 (self.nodeDbId, |
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797 item["id"], |
|
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798 publisher.full(), |
|
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799 data, |
| 244 | 800 access_model, |
|
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801 self.nodeDbId)) |
|
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802 |
|
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803 item_id = cursor.fetchone()[0]; |
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804 self._storeCategories(cursor, item_id, item_data.categories) |
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805 |
|
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806 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
| 250 | 807 if const.OPT_ROSTER_GROUPS_ALLOWED in item_config: |
| 808 item_config.fields[const.OPT_ROSTER_GROUPS_ALLOWED].fieldType='list-multi' #XXX: needed to force list if there is only one value | |
| 809 allowed_groups = item_config[const.OPT_ROSTER_GROUPS_ALLOWED] | |
|
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810 else: |
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811 allowed_groups = [] |
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812 for group in allowed_groups: |
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813 #TODO: check that group are actually in roster |
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814 cursor.execute("""INSERT INTO item_groups_authorized (item_id, groupname) |
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815 VALUES (%s,%s)""" , (item_id, group)) |
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816 # TODO: whitelist access model |
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817 |
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818 def _storeCategories(self, cursor, item_id, categories, update=False): |
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819 # TODO: handle canonical form |
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820 if update: |
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821 cursor.execute("""DELETE FROM item_categories |
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822 WHERE item_id=%s""", (item_id,)) |
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823 |
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824 for category in categories: |
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825 cursor.execute("""INSERT INTO item_categories (item_id, category) |
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826 VALUES (%s, %s)""", (item_id, category)) |
| 107 | 827 |
|
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828 def removeItems(self, itemIdentifiers): |
|
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829 return self.dbpool.runInteraction(self._removeItems, itemIdentifiers) |
|
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830 |
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831 def _removeItems(self, cursor, itemIdentifiers): |
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832 self._checkNodeExists(cursor) |
|
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833 |
|
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834 deleted = [] |
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835 |
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836 for itemIdentifier in itemIdentifiers: |
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837 cursor.execute("""DELETE FROM items WHERE |
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838 node_id=%s AND |
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839 item=%s""", |
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840 (self.nodeDbId, |
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841 itemIdentifier)) |
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842 |
|
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843 if cursor.rowcount: |
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844 deleted.append(itemIdentifier) |
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845 |
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846 return deleted |
| 107 | 847 |
| 278 | 848 def getItems(self, authorized_groups, unrestricted, maxItems=None, ext_data=None): |
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849 """ Get all authorised items |
| 346 | 850 |
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851 @param authorized_groups: we want to get items that these groups can access |
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852 @param unrestricted: if true, don't check permissions (i.e.: get all items) |
| 318 | 853 @param maxItems: nb of items we want to get |
| 854 @param ext_data: options for extra features like RSM and MAM | |
| 278 | 855 |
|
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856 @return: list of container.ItemData |
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857 if unrestricted is False, access_model and config will be None |
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858 """ |
| 278 | 859 if ext_data is None: |
| 860 ext_data = {} | |
| 347 | 861 return self.dbpool.runInteraction(self._getItems, authorized_groups, unrestricted, maxItems, ext_data, ids_only=False) |
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862 |
| 346 | 863 def getItemsIds(self, authorized_groups, unrestricted, maxItems=None, ext_data=None): |
| 864 """ Get all authorised items ids | |
| 865 | |
| 866 @param authorized_groups: we want to get items that these groups can access | |
| 867 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 868 @param maxItems: nb of items we want to get | |
| 869 @param ext_data: options for extra features like RSM and MAM | |
| 870 | |
| 871 @return list(unicode): list of ids | |
| 872 """ | |
| 873 if ext_data is None: | |
| 874 ext_data = {} | |
| 875 return self.dbpool.runInteraction(self._getItems, authorized_groups, unrestricted, maxItems, ext_data, ids_only=True) | |
| 876 | |
| 318 | 877 def _appendSourcesAndFilters(self, query, args, authorized_groups, unrestricted, ext_data): |
| 878 """append sources and filters to sql query requesting items and return ORDER BY | |
| 278 | 879 |
| 318 | 880 arguments query, args, authorized_groups, unrestricted and ext_data are the same as for |
| 881 _getItems | |
| 882 """ | |
| 883 # SOURCES | |
| 323 | 884 query.append("FROM nodes INNER JOIN items USING (node_id)") |
| 885 | |
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886 if unrestricted: |
| 323 | 887 query_filters = ["WHERE node_id=%s"] |
| 318 | 888 args.append(self.nodeDbId) |
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889 else: |
| 323 | 890 query.append("LEFT JOIN item_groups_authorized USING (item_id)") |
| 318 | 891 args.append(self.nodeDbId) |
| 892 if authorized_groups: | |
| 893 get_groups = " or (items.access_model='roster' and groupname in %s)" | |
| 894 args.append(authorized_groups) | |
| 895 else: | |
| 896 get_groups = "" | |
| 278 | 897 |
| 323 | 898 query_filters = ["WHERE node_id=%s AND (items.access_model='open'" + get_groups + ")"] |
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899 |
| 318 | 900 # FILTERS |
|
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901 if 'filters' in ext_data: # MAM filters |
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902 for filter_ in ext_data['filters']: |
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903 if filter_.var == 'start': |
| 323 | 904 query_filters.append("AND date>=%s") |
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905 args.append(filter_.value) |
| 323 | 906 elif filter_.var == 'end': |
| 907 query_filters.append("AND date<=%s") | |
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908 args.append(filter_.value) |
| 323 | 909 elif filter_.var == 'with': |
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910 jid_s = filter_.value |
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911 if '/' in jid_s: |
| 323 | 912 query_filters.append("AND publisher=%s") |
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913 args.append(filter_.value) |
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914 else: |
| 323 | 915 query_filters.append("AND publisher LIKE %s") |
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916 args.append(u"{}%".format(filter_.value)) |
| 323 | 917 elif filter_.var == const.MAM_FILTER_CATEGORY: |
| 918 query.append("LEFT JOIN item_categories USING (item_id)") | |
| 919 query_filters.append("AND category=%s") | |
| 920 args.append(filter_.value) | |
| 921 else: | |
| 922 log.msg("WARNING: unknown filter: {}".format(filter_.encode('utf-8'))) | |
| 923 | |
| 924 query.extend(query_filters) | |
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925 |
|
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926 return "ORDER BY item_id DESC" |
| 318 | 927 |
| 346 | 928 def _getItems(self, cursor, authorized_groups, unrestricted, maxItems, ext_data, ids_only): |
| 318 | 929 self._checkNodeExists(cursor) |
| 930 | |
| 931 if maxItems == 0: | |
| 932 return [] | |
| 933 | |
| 934 args = [] | |
| 935 | |
| 936 # SELECT | |
| 346 | 937 if ids_only: |
| 938 query = ["SELECT item"] | |
| 939 else: | |
|
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940 query = ["SELECT data::text,items.access_model,item_id,date"] |
| 318 | 941 |
| 942 query_order = self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 278 | 943 |
| 944 if 'rsm' in ext_data: | |
| 945 rsm = ext_data['rsm'] | |
| 946 maxItems = rsm.max | |
| 947 if rsm.index is not None: | |
|
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948 # We need to know the item_id of corresponding to the index (offset) of the current query |
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949 # so we execute the query to look for the item_id |
| 318 | 950 tmp_query = query[:] |
| 951 tmp_args = args[:] | |
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952 tmp_query[0] = "SELECT item_id" |
| 318 | 953 tmp_query.append("{} LIMIT 1 OFFSET %s".format(query_order)) |
| 954 tmp_args.append(rsm.index) | |
| 955 cursor.execute(' '.join(query), args) | |
| 956 # FIXME: bad index is not managed yet | |
|
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957 item_id = cursor.fetchall()[0][0] |
| 318 | 958 |
|
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959 # now that we have the id, we can use it |
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960 query.append("AND item_id<=%s") |
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961 args.append(item_id) |
| 278 | 962 elif rsm.before is not None: |
| 963 if rsm.before != '': | |
|
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964 query.append("AND item_id>(SELECT item_id FROM items WHERE item=%s LIMIT 1)") |
| 278 | 965 args.append(rsm.before) |
| 318 | 966 if maxItems is not None: |
| 967 # if we have maxItems (i.e. a limit), we need to reverse order | |
| 968 # in a first query to get the right items | |
| 969 query.insert(0,"SELECT * from (") | |
|
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970 query.append("ORDER BY item_id ASC LIMIT %s) as x") |
| 318 | 971 args.append(maxItems) |
| 278 | 972 elif rsm.after: |
|
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973 query.append("AND item_id<(SELECT item_id FROM items WHERE item=%s LIMIT 1)") |
| 278 | 974 args.append(rsm.after) |
| 975 | |
| 318 | 976 query.append(query_order) |
| 278 | 977 |
|
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978 if maxItems is not None: |
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979 query.append("LIMIT %s") |
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980 args.append(maxItems) |
|
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981 |
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982 cursor.execute(' '.join(query), args) |
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983 |
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984 result = cursor.fetchall() |
| 346 | 985 if unrestricted and not ids_only: |
| 318 | 986 # with unrestricted query, we need to fill the access_list for a roster access items |
|
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987 ret = [] |
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988 for item_data in result: |
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989 item = generic.stripNamespace(parseXml(item_data.data)) |
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990 access_model = item_data.access_model |
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991 item_id = item_data.item_id |
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992 date = item_data.date |
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993 access_list = {} |
|
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994 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
|
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995 cursor.execute('SELECT groupname FROM item_groups_authorized WHERE item_id=%s', (item_id,)) |
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996 access_list[const.OPT_ROSTER_GROUPS_ALLOWED] = [r.groupname for r in cursor.fetchall()] |
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997 |
| 322 | 998 ret.append(container.ItemData(item, access_model, access_list, date=date)) |
|
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999 # TODO: whitelist item access model |
|
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1000 return ret |
| 318 | 1001 |
| 346 | 1002 if ids_only: |
|
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1003 return [r.item for r in result] |
| 346 | 1004 else: |
|
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1005 items_data = [container.ItemData(generic.stripNamespace(parseXml(r.data)), r.access_model, date=r.date) for r in result] |
|
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1006 return items_data |
| 107 | 1007 |
|
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1008 def getItemsById(self, authorized_groups, unrestricted, itemIdentifiers): |
|
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1009 """Get items which are in the given list |
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1010 |
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1011 @param authorized_groups: we want to get items that these groups can access |
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1012 @param unrestricted: if true, don't check permissions |
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1013 @param itemIdentifiers: list of ids of the items we want to get |
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1014 @return: list of container.ItemData |
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1015 ItemData.config will contains access_list (managed as a dictionnary with same key as for item_config) |
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1016 if unrestricted is False, access_model and config will be None |
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1017 """ |
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1018 return self.dbpool.runInteraction(self._getItemsById, authorized_groups, unrestricted, itemIdentifiers) |
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1019 |
|
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1020 def _getItemsById(self, cursor, authorized_groups, unrestricted, itemIdentifiers): |
|
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1021 self._checkNodeExists(cursor) |
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1022 ret = [] |
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1023 if unrestricted: #we get everything without checking permissions |
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1024 for itemIdentifier in itemIdentifiers: |
|
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1025 cursor.execute("""SELECT data::text,items.access_model,item_id,date FROM nodes |
|
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1026 INNER JOIN items USING (node_id) |
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1027 WHERE node_id=%s AND item=%s""", |
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1028 (self.nodeDbId, |
|
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1029 itemIdentifier)) |
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1030 result = cursor.fetchone() |
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1031 if not result: |
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1032 raise error.ItemNotFound() |
| 107 | 1033 |
|
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1034 item = generic.stripNamespace(parseXml(result[0])) |
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1035 access_model = result[1] |
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1036 item_id = result[2] |
| 322 | 1037 date= result[3] |
|
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1038 access_list = {} |
|
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1039 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
|
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1040 cursor.execute('SELECT groupname FROM item_groups_authorized WHERE item_id=%s', (item_id,)) |
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1041 access_list[const.OPT_ROSTER_GROUPS_ALLOWED] = [r[0] for r in cursor.fetchall()] |
|
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1042 #TODO: WHITELIST access_model |
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1043 |
| 322 | 1044 ret.append(container.ItemData(item, access_model, access_list, date=date)) |
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1045 else: #we check permission before returning items |
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1046 for itemIdentifier in itemIdentifiers: |
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1047 args = [self.nodeDbId, itemIdentifier] |
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1048 if authorized_groups: |
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1049 args.append(authorized_groups) |
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1050 cursor.execute("""SELECT data::text, date FROM nodes |
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1051 INNER JOIN items USING (node_id) |
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1052 LEFT JOIN item_groups_authorized USING (item_id) |
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1053 WHERE node_id=%s AND item=%s AND |
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1054 (items.access_model='open' """ + |
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1055 ("or (items.access_model='roster' and groupname in %s)" if authorized_groups else '') + ")", |
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1056 args) |
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1057 |
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1058 result = cursor.fetchone() |
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1059 if result: |
| 322 | 1060 ret.append(container.ItemData(generic.stripNamespace(parseXml(result[0])), date=result[1])) |
|
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1061 |
|
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1062 return ret |
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1063 |
| 318 | 1064 def getItemsCount(self, authorized_groups, unrestricted, ext_data=None): |
| 1065 """Count expected number of items in a getItems query | |
| 1066 | |
| 1067 @param authorized_groups: we want to get items that these groups can access | |
| 1068 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1069 @param ext_data: options for extra features like RSM and MAM | |
| 1070 """ | |
| 1071 if ext_data is None: | |
| 1072 ext_data = {} | |
| 1073 return self.dbpool.runInteraction(self._getItemsCount, authorized_groups, unrestricted, ext_data) | |
| 1074 | |
| 1075 def _getItemsCount(self, cursor, authorized_groups, unrestricted, ext_data): | |
| 1076 self._checkNodeExists(cursor) | |
| 1077 args = [] | |
| 1078 | |
| 1079 # SELECT | |
| 1080 query = ["SELECT count(1)"] | |
| 1081 | |
| 1082 self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 1083 | |
| 1084 cursor.execute(' '.join(query), args) | |
| 1085 return cursor.fetchall()[0][0] | |
| 1086 | |
| 1087 def getItemsIndex(self, item_id, authorized_groups, unrestricted, ext_data=None): | |
| 1088 """Get expected index of first item in the window of a getItems query | |
| 1089 | |
| 1090 @param item_id: id of the item | |
| 1091 @param authorized_groups: we want to get items that these groups can access | |
| 1092 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1093 @param ext_data: options for extra features like RSM and MAM | |
| 1094 """ | |
| 1095 if ext_data is None: | |
| 1096 ext_data = {} | |
| 1097 return self.dbpool.runInteraction(self._getItemsIndex, item_id, authorized_groups, unrestricted, ext_data) | |
| 1098 | |
| 1099 def _getItemsIndex(self, cursor, item_id, authorized_groups, unrestricted, ext_data): | |
| 1100 self._checkNodeExists(cursor) | |
| 1101 args = [] | |
| 1102 | |
| 1103 # SELECT | |
| 1104 query = [] | |
| 1105 | |
| 1106 query_order = self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 1107 | |
| 1108 query_select = "SELECT row_number from (SELECT row_number() OVER ({}), item".format(query_order) | |
| 1109 query.insert(0, query_select) | |
| 1110 query.append(") as x WHERE item=%s") | |
| 1111 args.append(item_id) | |
| 1112 | |
| 1113 cursor.execute(' '.join(query), args) | |
| 1114 # XXX: row_number start at 1, but we want that index start at 0 | |
|
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1115 try: |
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1116 return cursor.fetchall()[0][0] - 1 |
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1117 except IndexError: |
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1118 raise error.NodeNotFound() |
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1119 |
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1120 def getItemsPublishers(self, itemIdentifiers): |
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1121 """Get the publishers for all given identifiers |
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1122 |
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1123 @return (dict[unicode, jid.JID]): map of itemIdentifiers to publisher |
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1124 if item is not found, key is skipped in resulting dict |
|
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1125 """ |
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1126 return self.dbpool.runInteraction(self._getItemsPublishers, itemIdentifiers) |
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1127 |
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1128 def _getItemsPublishers(self, cursor, itemIdentifiers): |
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1129 self._checkNodeExists(cursor) |
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1130 ret = {} |
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1131 for itemIdentifier in itemIdentifiers: |
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1132 cursor.execute("""SELECT publisher FROM items |
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1133 WHERE item=%s""", |
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1134 (itemIdentifier,)) |
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1135 result = cursor.fetchone() |
|
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1136 if result: |
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1137 ret[itemIdentifier] = jid.JID(result[0]) |
|
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1138 return ret |
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1139 |
| 107 | 1140 def purge(self): |
|
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1141 return self.dbpool.runInteraction(self._purge) |
|
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1142 |
|
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1143 def _purge(self, cursor): |
|
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1144 self._checkNodeExists(cursor) |
|
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1145 |
|
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1146 cursor.execute("""DELETE FROM items WHERE |
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1147 node_id=%s""", |
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1148 (self.nodeDbId,)) |
|
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1149 |
|
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1150 |
|
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1151 class CollectionNode(Node): |
|
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1152 |
|
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1153 nodeType = 'collection' |
|
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1154 |
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1155 |
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1156 |
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1157 class GatewayStorage(object): |
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1158 """ |
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1159 Memory based storage facility for the XMPP-HTTP gateway. |
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1160 """ |
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1161 |
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1162 def __init__(self, dbpool): |
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1163 self.dbpool = dbpool |
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1164 |
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1165 def _countCallbacks(self, cursor, service, nodeIdentifier): |
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1166 """ |
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1167 Count number of callbacks registered for a node. |
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1168 """ |
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1169 cursor.execute("""SELECT count(*) FROM callbacks |
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1170 WHERE service=%s and node=%s""", |
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1171 (service.full(), |
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1172 nodeIdentifier)) |
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1173 results = cursor.fetchall() |
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1174 return results[0][0] |
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1175 |
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1176 def addCallback(self, service, nodeIdentifier, callback): |
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1177 def interaction(cursor): |
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1178 cursor.execute("""SELECT 1 as bool FROM callbacks |
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1179 WHERE service=%s and node=%s and uri=%s""", |
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1180 (service.full(), |
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1181 nodeIdentifier, |
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1182 callback)) |
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1183 if cursor.fetchall(): |
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1184 return |
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1185 |
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1186 cursor.execute("""INSERT INTO callbacks |
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1187 (service, node, uri) VALUES |
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1188 (%s, %s, %s)""", |
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1189 (service.full(), |
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1190 nodeIdentifier, |
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1191 callback)) |
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1192 |
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1193 return self.dbpool.runInteraction(interaction) |
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1194 |
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1195 def removeCallback(self, service, nodeIdentifier, callback): |
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1196 def interaction(cursor): |
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1197 cursor.execute("""DELETE FROM callbacks |
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1198 WHERE service=%s and node=%s and uri=%s""", |
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1199 (service.full(), |
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1200 nodeIdentifier, |
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1201 callback)) |
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1202 |
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1203 if cursor.rowcount != 1: |
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1204 raise error.NotSubscribed() |
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1205 |
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1206 last = not self._countCallbacks(cursor, service, nodeIdentifier) |
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1207 return last |
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1208 |
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1209 return self.dbpool.runInteraction(interaction) |
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1210 |
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1211 def getCallbacks(self, service, nodeIdentifier): |
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1212 def interaction(cursor): |
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1213 cursor.execute("""SELECT uri FROM callbacks |
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1214 WHERE service=%s and node=%s""", |
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1215 (service.full(), |
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1216 nodeIdentifier)) |
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1217 results = cursor.fetchall() |
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1218 |
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1219 if not results: |
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1220 raise error.NoCallbacks() |
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1221 |
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1222 return [result[0] for result in results] |
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1223 |
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1224 return self.dbpool.runInteraction(interaction) |
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1225 |
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1226 def hasCallbacks(self, service, nodeIdentifier): |
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1227 def interaction(cursor): |
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1228 return bool(self._countCallbacks(cursor, service, nodeIdentifier)) |
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1229 |
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1230 return self.dbpool.runInteraction(interaction) |