Mercurial > libervia-pubsub
annotate sat_pubsub/pgsql_storage.py @ 442:b38b8beac609
doc: better dev version instructions + update
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 19 Mar 2021 12:46:32 +0100 |
| parents | 074037832daf |
| children | 96059231d58f |
| rev | line source |
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| 414 | 1 #!/usr/bin/env python3 |
| 233 | 2 #-*- coding: utf-8 -*- |
| 3 | |
| 440 | 4 # Copyright (c) 2012-2021 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 |
| 414 | 56 from zope.interface import implementer |
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57 |
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58 from twisted.internet import reactor |
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59 from twisted.internet import defer |
| 107 | 60 from twisted.words.protocols.jabber import jid |
| 323 | 61 from twisted.python import log |
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62 |
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63 from wokkel import generic |
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64 from wokkel.pubsub import Subscription, BadRequest |
| 107 | 65 |
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66 from sat_pubsub import error |
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67 from sat_pubsub import iidavoll |
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68 from sat_pubsub import const |
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69 from sat_pubsub import container |
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70 from sat_pubsub import exceptions |
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71 import uuid |
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72 import psycopg2 |
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73 import psycopg2.extensions |
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74 # we wants psycopg2 to return us unicode, not str |
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75 psycopg2.extensions.register_type(psycopg2.extensions.UNICODE) |
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76 psycopg2.extensions.register_type(psycopg2.extensions.UNICODEARRAY) |
| 244 | 77 |
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78 # parseXml manage str, but we get unicode |
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79 parseXml = lambda unicode_data: generic.parseXml(unicode_data.encode('utf-8')) |
| 414 | 80 ITEMS_SEQ_NAME = 'node_{node_id}_seq' |
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81 PEP_COL_NAME = 'pep' |
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82 CURRENT_VERSION = '8' |
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83 # retrieve the maximum integer item id + 1 |
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84 NEXT_ITEM_ID_QUERY = r"SELECT COALESCE(max(item::integer)+1,1) as val from items where node_id={node_id} and item ~ E'^\\d+$'" |
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85 |
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86 |
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87 def withPEP(query, values, pep, recipient): |
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88 """Helper method to facilitate PEP management |
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89 |
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90 @param query: SQL query basis |
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91 @param values: current values to replace in query |
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92 @param pep(bool): True if we are in PEP mode |
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93 @param recipient(jid.JID): jid of the recipient |
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94 @return: query + PEP AND check, |
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95 recipient's bare jid is added to value if needed |
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96 """ |
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97 if pep: |
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98 pep_check="AND {}=%s".format(PEP_COL_NAME) |
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99 values=list(values) + [recipient.userhost()] |
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100 else: |
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101 pep_check="AND {} IS NULL".format(PEP_COL_NAME) |
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102 return "{} {}".format(query, pep_check), values |
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103 |
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104 |
| 414 | 105 @implementer(iidavoll.IStorage) |
| 107 | 106 class Storage: |
| 107 | |
| 430 | 108 fts_languages = ['generic'] |
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109 defaultConfig = { |
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110 'leaf': { |
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111 const.OPT_PERSIST_ITEMS: True, |
| 422 | 112 const.OPT_MAX_ITEMS: 'max', |
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113 const.OPT_DELIVER_PAYLOADS: True, |
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114 const.OPT_SEND_LAST_PUBLISHED_ITEM: 'on_sub', |
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115 const.OPT_ACCESS_MODEL: const.VAL_AMODEL_DEFAULT, |
| 260 | 116 const.OPT_PUBLISH_MODEL: const.VAL_PMODEL_DEFAULT, |
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117 const.OPT_OVERWRITE_POLICY: const.VAL_OWPOL_DEFAUT, |
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118 const.OPT_SERIAL_IDS: False, |
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119 const.OPT_CONSISTENT_PUBLISHER: False, |
| 430 | 120 const.OPT_FTS_LANGUAGE: const.VAL_FTS_GENERIC, |
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121 }, |
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122 'collection': { |
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123 const.OPT_DELIVER_PAYLOADS: True, |
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124 const.OPT_SEND_LAST_PUBLISHED_ITEM: 'on_sub', |
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125 const.OPT_ACCESS_MODEL: const.VAL_AMODEL_DEFAULT, |
| 260 | 126 const.OPT_PUBLISH_MODEL: const.VAL_PMODEL_DEFAULT, |
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127 } |
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128 } |
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129 |
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130 def __init__(self, dbpool): |
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131 self.dbpool = dbpool |
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132 d = self.dbpool.runQuery("SELECT value FROM metadata WHERE key='version'") |
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133 d.addCallbacks(self._checkVersion, self._versionEb) |
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134 |
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135 def _checkVersion(self, row): |
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136 version = row[0].value |
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137 if version != CURRENT_VERSION: |
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138 logging.error("Bad database schema version ({current}), please upgrade to {needed}".format( |
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139 current=version, needed=CURRENT_VERSION)) |
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140 reactor.stop() |
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141 |
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142 def _versionEb(self, failure): |
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143 logging.error("Can't check schema version: {reason}".format(reason=failure)) |
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144 reactor.stop() |
| 107 | 145 |
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146 def _buildNode(self, row): |
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147 """Build a note class from database result row""" |
|
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148 if not row: |
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149 raise error.NodeNotFound() |
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150 |
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151 if row[2] == 'leaf': |
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152 configuration = { |
| 422 | 153 const.OPT_PERSIST_ITEMS: row[3], |
| 154 const.OPT_MAX_ITEMS: 'max' if row[4] == 0 else str(row[4]), | |
| 155 const.OPT_DELIVER_PAYLOADS: row[5], | |
| 156 const.OPT_SEND_LAST_PUBLISHED_ITEM: row[6], | |
| 157 const.OPT_ACCESS_MODEL:row[7], | |
| 158 const.OPT_PUBLISH_MODEL:row[8], | |
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159 const.OPT_OVERWRITE_POLICY: row[9], |
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160 const.OPT_SERIAL_IDS:row[10], |
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161 const.OPT_CONSISTENT_PUBLISHER:row[11], |
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162 const.OPT_FTS_LANGUAGE: row[12], |
|
259
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163 } |
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164 schema = row[13] |
| 352 | 165 if schema is not None: |
| 166 schema = parseXml(schema) | |
| 167 node = LeafNode(row[0], row[1], configuration, schema) | |
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168 node.dbpool = self.dbpool |
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169 return node |
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170 elif row[2] == 'collection': |
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171 configuration = { |
| 422 | 172 const.OPT_DELIVER_PAYLOADS: row[5], |
| 173 const.OPT_SEND_LAST_PUBLISHED_ITEM: row[6], | |
| 174 const.OPT_ACCESS_MODEL: row[7], | |
| 175 const.OPT_PUBLISH_MODEL:row[8], | |
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176 } |
| 352 | 177 node = CollectionNode(row[0], row[1], configuration, None) |
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178 node.dbpool = self.dbpool |
| 107 | 179 return node |
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180 else: |
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181 raise BadRequest(text="Unknown node type !") |
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182 |
| 430 | 183 def getFTSLanguages(self): |
| 184 """Get list of available languages for full text search""" | |
| 185 return self.dbpool.runInteraction(self._getFTSLanguages) | |
| 186 | |
| 187 def _getFTSLanguages(self, cursor): | |
| 188 cursor.execute("SELECT cfgname FROM pg_ts_config") | |
| 189 result = [r.cfgname for r in cursor.fetchall()] | |
| 190 result.remove("simple") | |
| 191 result.insert(0, "generic") | |
| 192 Node.fts_languages = self.fts_languages = result | |
| 193 return result | |
| 194 | |
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195 def getNodeById(self, nodeDbId): |
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196 """Get node using database ID insted of pubsub identifier |
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197 |
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198 @param nodeDbId(unicode): database ID |
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199 """ |
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200 return self.dbpool.runInteraction(self._getNodeById, nodeDbId) |
|
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201 |
|
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202 def _getNodeById(self, cursor, nodeDbId): |
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203 cursor.execute("""SELECT node_id, |
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204 node, |
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205 node_type, |
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206 persist_items, |
| 422 | 207 max_items, |
|
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208 deliver_payloads, |
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209 send_last_published_item, |
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210 access_model, |
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211 publish_model, |
|
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212 overwrite_policy, |
|
367
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213 serial_ids, |
|
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214 consistent_publisher, |
| 430 | 215 fts_language, |
| 352 | 216 schema::text, |
|
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217 pep |
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218 FROM nodes |
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219 WHERE node_id=%s""", |
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220 (nodeDbId,)) |
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221 row = cursor.fetchone() |
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222 return self._buildNode(row) |
|
198
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223 |
|
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224 def getNode(self, nodeIdentifier, pep, recipient=None): |
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225 return self.dbpool.runInteraction(self._getNode, nodeIdentifier, pep, recipient) |
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226 |
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227 def _getNode(self, cursor, nodeIdentifier, pep, recipient): |
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228 cursor.execute(*withPEP("""SELECT node_id, |
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229 node, |
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230 node_type, |
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231 persist_items, |
| 422 | 232 max_items, |
|
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233 deliver_payloads, |
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234 send_last_published_item, |
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235 access_model, |
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236 publish_model, |
|
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237 overwrite_policy, |
|
367
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238 serial_ids, |
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239 consistent_publisher, |
| 430 | 240 fts_language, |
| 352 | 241 schema::text, |
|
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242 pep |
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243 FROM nodes |
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244 WHERE node=%s""", |
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245 (nodeIdentifier,), pep, recipient)) |
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246 row = cursor.fetchone() |
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247 return self._buildNode(row) |
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248 |
|
349
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249 def getNodeIds(self, pep, recipient, allowed_accesses=None): |
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250 """retrieve ids of existing nodes |
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251 |
|
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252 @param pep(bool): True if it's a PEP request |
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253 @param recipient(jid.JID, None): recipient of the PEP request |
|
349
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254 @param allowed_accesses(None, set): only nodes with access |
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255 in this set will be returned |
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256 None to return all nodes |
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257 @return (list[unicode]): ids of nodes |
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258 """ |
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259 if not pep: |
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260 query = "SELECT node from nodes WHERE pep is NULL" |
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261 values = [] |
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262 else: |
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263 query = "SELECT node from nodes WHERE pep=%s" |
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264 values = [recipient.userhost()] |
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265 |
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266 if allowed_accesses is not None: |
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267 query += "AND access_model IN %s" |
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268 values.append(tuple(allowed_accesses)) |
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269 |
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270 d = self.dbpool.runQuery(query, values) |
| 107 | 271 d.addCallback(lambda results: [r[0] for r in results]) |
| 272 return d | |
| 273 | |
| 352 | 274 def createNode(self, nodeIdentifier, owner, config, schema, pep, recipient=None): |
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275 return self.dbpool.runInteraction(self._createNode, nodeIdentifier, |
| 352 | 276 owner, config, schema, pep, recipient) |
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277 |
| 352 | 278 def _createNode(self, cursor, nodeIdentifier, owner, config, schema, pep, recipient): |
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279 if config['pubsub#node_type'] != 'leaf': |
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280 raise error.NoCollections() |
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281 |
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282 owner = owner.userhost() |
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283 |
| 107 | 284 try: |
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285 cursor.execute("""INSERT INTO nodes |
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286 (node, |
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287 node_type, |
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288 persist_items, |
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289 deliver_payloads, |
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290 send_last_published_item, |
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291 access_model, |
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292 publish_model, |
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293 overwrite_policy, |
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294 serial_ids, |
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295 consistent_publisher, |
| 430 | 296 fts_language, |
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297 schema, |
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298 pep) |
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299 VALUES |
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300 (%s, 'leaf', %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)""", |
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301 (nodeIdentifier, |
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302 config['pubsub#persist_items'], |
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303 config['pubsub#deliver_payloads'], |
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304 config['pubsub#send_last_published_item'], |
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305 config[const.OPT_ACCESS_MODEL], |
| 260 | 306 config[const.OPT_PUBLISH_MODEL], |
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307 config[const.OPT_OVERWRITE_POLICY], |
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308 config[const.OPT_SERIAL_IDS], |
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309 config[const.OPT_CONSISTENT_PUBLISHER], |
| 430 | 310 config[const.OPT_FTS_LANGUAGE], |
| 352 | 311 schema, |
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312 recipient.userhost() if pep else None |
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313 ) |
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314 ) |
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332
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315 except cursor._pool.dbapi.IntegrityError as e: |
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316 if e.pgcode == "23505": |
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317 # unique_violation |
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318 raise error.NodeExists() |
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319 else: |
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320 raise error.InvalidConfigurationOption() |
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321 |
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322 cursor.execute(*withPEP("""SELECT node_id FROM nodes WHERE node=%s""", |
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323 (nodeIdentifier,), pep, recipient)); |
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324 node_id = cursor.fetchone()[0] |
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325 |
|
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326 cursor.execute("""SELECT 1 as bool from entities where jid=%s""", |
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327 (owner,)) |
| 107 | 328 |
| 329 if not cursor.fetchone(): | |
|
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330 # XXX: we can NOT rely on the previous query! Commit is needed now because |
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331 # if the entry exists the next query will leave the database in a corrupted |
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332 # state: the solution is to rollback. I tried with other methods like |
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333 # "WHERE NOT EXISTS" but none of them worked, so the following solution |
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334 # looks like the sole - unless you have auto-commit on. More info |
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335 # about this issue: http://cssmay.com/question/tag/tag-psycopg2 |
|
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336 cursor.connection.commit() |
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337 try: |
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338 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", |
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339 (owner,)) |
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340 except psycopg2.IntegrityError as e: |
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341 cursor.connection.rollback() |
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342 logging.warning("during node creation: %s" % e.message) |
| 107 | 343 |
| 344 cursor.execute("""INSERT INTO affiliations | |
| 345 (node_id, entity_id, affiliation) | |
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346 SELECT %s, entity_id, 'owner' FROM |
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347 (SELECT entity_id FROM entities |
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348 WHERE jid=%s) as e""", |
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349 (node_id, owner)) |
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350 |
|
330
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351 if config[const.OPT_ACCESS_MODEL] == const.VAL_AMODEL_PUBLISHER_ROSTER: |
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352 if const.OPT_ROSTER_GROUPS_ALLOWED in config: |
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353 allowed_groups = config[const.OPT_ROSTER_GROUPS_ALLOWED] |
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354 else: |
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355 allowed_groups = [] |
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356 for group in allowed_groups: |
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357 #TODO: check that group are actually in roster |
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358 cursor.execute("""INSERT INTO node_groups_authorized (node_id, groupname) |
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359 VALUES (%s,%s)""" , (node_id, group)) |
|
330
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360 # XXX: affiliations can't be set on during node creation (at least not with XEP-0060 alone) |
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361 # so whitelist affiliations need to be done afterward |
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362 |
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363 # no we may have to do extra things according to config options |
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364 default_conf = self.defaultConfig['leaf'] |
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365 # XXX: trigger works on node creation because OPT_SERIAL_IDS is False in defaultConfig |
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366 # if this value is changed, the _configurationTriggers method should be adapted. |
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367 Node._configurationTriggers(cursor, node_id, default_conf, config) |
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368 |
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369 def deleteNodeByDbId(self, db_id): |
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370 """Delete a node using directly its database id""" |
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371 return self.dbpool.runInteraction(self._deleteNodeByDbId, db_id) |
| 107 | 372 |
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373 def _deleteNodeByDbId(self, cursor, db_id): |
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374 cursor.execute("""DELETE FROM nodes WHERE node_id=%s""", |
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375 (db_id,)) |
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376 |
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377 if cursor.rowcount != 1: |
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378 raise error.NodeNotFound() |
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379 |
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380 def deleteNode(self, nodeIdentifier, pep, recipient=None): |
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381 return self.dbpool.runInteraction(self._deleteNode, nodeIdentifier, pep, recipient) |
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382 |
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383 def _deleteNode(self, cursor, nodeIdentifier, pep, recipient): |
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384 cursor.execute(*withPEP("""DELETE FROM nodes WHERE node=%s""", |
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385 (nodeIdentifier,), pep, recipient)) |
| 107 | 386 |
| 387 if cursor.rowcount != 1: | |
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388 raise error.NodeNotFound() |
| 107 | 389 |
| 331 | 390 def getAffiliations(self, entity, nodeIdentifier, pep, recipient=None): |
| 391 return self.dbpool.runInteraction(self._getAffiliations, entity, nodeIdentifier, pep, recipient) | |
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392 |
| 331 | 393 def _getAffiliations(self, cursor, entity, nodeIdentifier, pep, recipient=None): |
| 394 query = ["""SELECT node, affiliation FROM entities | |
| 395 NATURAL JOIN affiliations | |
| 396 NATURAL JOIN nodes | |
| 397 WHERE jid=%s"""] | |
| 398 args = [entity.userhost()] | |
| 399 | |
| 400 if nodeIdentifier is not None: | |
| 401 query.append("AND node=%s") | |
| 402 args.append(nodeIdentifier) | |
| 403 | |
| 404 cursor.execute(*withPEP(' '.join(query), args, pep, recipient)) | |
| 405 rows = cursor.fetchall() | |
| 406 return [tuple(r) for r in rows] | |
| 107 | 407 |
|
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408 def getSubscriptions(self, entity, nodeIdentifier=None, pep=False, recipient=None): |
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409 """retrieve subscriptions of an entity |
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410 |
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411 @param entity(jid.JID): entity to check |
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412 @param nodeIdentifier(unicode, None): node identifier |
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413 None to retrieve all subscriptions |
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414 @param pep: True if we are in PEP mode |
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415 @param recipient: jid of the recipient |
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416 """ |
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417 |
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418 def toSubscriptions(rows): |
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419 subscriptions = [] |
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420 for row in rows: |
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421 subscriber = jid.internJID('%s/%s' % (row.jid, |
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422 row.resource)) |
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423 subscription = Subscription(row.node, subscriber, row.state) |
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424 subscriptions.append(subscription) |
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425 return subscriptions |
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426 |
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427 query = ["""SELECT node, |
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428 jid, |
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429 resource, |
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430 state |
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431 FROM entities |
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432 NATURAL JOIN subscriptions |
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433 NATURAL JOIN nodes |
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434 WHERE jid=%s"""] |
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435 |
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436 args = [entity.userhost()] |
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437 |
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438 if nodeIdentifier is not None: |
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439 query.append("AND node=%s") |
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440 args.append(nodeIdentifier) |
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441 |
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442 d = self.dbpool.runQuery(*withPEP(' '.join(query), args, pep, recipient)) |
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443 d.addCallback(toSubscriptions) |
| 107 | 444 return d |
| 445 | |
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446 def getDefaultConfiguration(self, nodeType): |
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447 return self.defaultConfig[nodeType].copy() |
| 107 | 448 |
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449 def formatLastItems(self, result): |
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450 last_items = [] |
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451 for pep_jid_s, node, data, item_access_model in result: |
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452 pep_jid = jid.JID(pep_jid_s) |
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453 item = generic.stripNamespace(parseXml(data)) |
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454 last_items.append((pep_jid, node, item, item_access_model)) |
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455 return last_items |
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456 |
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457 def getLastItems(self, entities, nodes, node_accesses, item_accesses, pep): |
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458 """get last item for several nodes and entities in a single request""" |
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459 if not entities or not nodes or not node_accesses or not item_accesses: |
|
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460 raise BadRequest(text="entities, nodes and accesses must not be empty") |
|
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461 if node_accesses != ('open',) or item_accesses != ('open',): |
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462 raise NotImplementedError('only "open" access model is handled for now') |
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463 if not pep: |
| 414 | 464 raise NotImplementedError("getLastItems is only implemented for PEP at the moment") |
|
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465 d = self.dbpool.runQuery("""SELECT DISTINCT ON (node_id) pep, node, data::text, items.access_model |
|
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466 FROM items |
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467 NATURAL JOIN nodes |
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468 WHERE nodes.pep IN %s |
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469 AND node IN %s |
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470 AND nodes.access_model in %s |
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471 AND items.access_model in %s |
| 374 | 472 ORDER BY node_id DESC, items.updated DESC""", |
|
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473 (tuple([e.userhost() for e in entities]), |
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474 nodes, |
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475 node_accesses, |
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476 item_accesses)) |
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477 d.addCallback(self.formatLastItems) |
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478 return d |
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479 |
|
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480 |
| 414 | 481 @implementer(iidavoll.INode) |
| 107 | 482 class Node: |
| 483 | |
| 484 | |
| 352 | 485 def __init__(self, nodeDbId, nodeIdentifier, config, schema): |
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486 self.nodeDbId = nodeDbId |
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487 self.nodeIdentifier = nodeIdentifier |
| 107 | 488 self._config = config |
| 352 | 489 self._schema = schema |
| 107 | 490 |
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491 def _checkNodeExists(self, cursor): |
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492 cursor.execute("""SELECT 1 as exist FROM nodes WHERE node_id=%s""", |
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493 (self.nodeDbId,)) |
|
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494 if not cursor.fetchone(): |
|
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495 raise error.NodeNotFound() |
|
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496 |
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497 def getType(self): |
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498 return self.nodeType |
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499 |
|
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500 def getOwners(self): |
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501 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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502 d.addCallback(lambda rows: [jid.JID(r[0]) for r in rows]) |
|
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503 return d |
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504 |
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505 def getConfiguration(self): |
| 107 | 506 return self._config |
| 507 | |
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508 def getNextId(self): |
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509 """return XMPP item id usable for next item to publish |
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510 |
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511 the return value will be next int if serila_ids is set, |
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512 else an UUID will be returned |
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513 """ |
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514 if self._config[const.OPT_SERIAL_IDS]: |
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515 d = self.dbpool.runQuery("SELECT nextval('{seq_name}')".format( |
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516 seq_name = ITEMS_SEQ_NAME.format(node_id=self.nodeDbId))) |
| 414 | 517 d.addCallback(lambda rows: str(rows[0][0])) |
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518 return d |
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519 else: |
| 414 | 520 return defer.succeed(str(uuid.uuid4())) |
|
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521 |
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522 @staticmethod |
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523 def _configurationTriggers(cursor, node_id, old_config, new_config): |
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524 """trigger database relative actions needed when a config is changed |
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525 |
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526 @param cursor(): current db cursor |
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527 @param node_id(unicode): database ID of the node |
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528 @param old_config(dict): config of the node before the change |
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529 @param new_config(dict): new options that will be changed |
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530 """ |
| 430 | 531 if const.OPT_SERIAL_IDS not in new_config: |
| 532 return | |
|
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533 serial_ids = new_config[const.OPT_SERIAL_IDS] |
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534 if serial_ids != old_config[const.OPT_SERIAL_IDS]: |
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535 # serial_ids option has been modified, |
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536 # we need to handle corresponding sequence |
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537 |
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538 # XXX: we use .format in following queries because values |
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539 # are generated by ourself |
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540 seq_name = ITEMS_SEQ_NAME.format(node_id=node_id) |
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541 if serial_ids: |
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542 # the next query get the max value +1 of all XMPP items ids |
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543 # which are integers, and default to 1 |
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544 cursor.execute(NEXT_ITEM_ID_QUERY.format(node_id=node_id)) |
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545 next_val = cursor.fetchone()[0] |
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546 cursor.execute("DROP SEQUENCE IF EXISTS {seq_name}".format(seq_name = seq_name)) |
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547 cursor.execute("CREATE SEQUENCE {seq_name} START {next_val} OWNED BY nodes.node_id".format( |
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548 seq_name = seq_name, |
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549 next_val = next_val)) |
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550 else: |
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551 cursor.execute("DROP SEQUENCE IF EXISTS {seq_name}".format(seq_name = seq_name)) |
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552 |
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553 def setConfiguration(self, options): |
| 430 | 554 to_delete = [] |
| 555 for option, value in options.items(): | |
| 556 try: | |
| 557 if self._config[option] == value: | |
| 558 to_delete.append(option) | |
| 559 except KeyError: | |
| 560 raise BadRequest(text=f"Invalid option: {option!r}") | |
|
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561 |
| 430 | 562 for option in to_delete: |
|
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563 del options.fields[option] |
|
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564 |
|
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565 if not options.fields: |
| 430 | 566 return |
| 567 | |
| 568 if options.get(const.OPT_MAX_ITEMS) == "max": | |
|
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569 # XXX: "max" is default value for config we must convert |
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570 # it to an interger. See backend's _doSetNodeConfiguration comment |
| 430 | 571 options[const.OPT_MAX_ITEMS] = "0" |
|
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572 |
| 430 | 573 if ((const.OPT_FTS_LANGUAGE in options |
| 574 and options[const.OPT_FTS_LANGUAGE] not in self.fts_languages)): | |
| 575 raise BadRequest(text= | |
| 576 f"invalid {const.OPT_FTS_LANGUAGE} value: " | |
| 577 f"{options[const.OPT_FTS_LANGUAGE]!r}" | |
| 578 ) | |
| 579 | |
| 580 | |
| 581 d = self.dbpool.runInteraction(self._setConfiguration, options) | |
| 582 d.addCallback(self._updateCachedConfiguration, options) | |
|
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583 return d |
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584 |
| 430 | 585 def _setConfiguration(self, cursor, options): |
| 586 self._configurationTriggers(cursor, self.nodeDbId, self._config, options) | |
| 587 # options names all follow the scheme "pubsub#{col_name}" | |
| 588 col_names = (o[7:] for o in options) | |
| 589 values = ','.join(f"{name}=%s" for name in col_names) | |
| 590 cursor.execute(f"UPDATE nodes SET {values} WHERE node_id=%s", | |
| 591 (*options.values(), self.nodeDbId)) | |
| 592 if cursor.rowcount == 0: | |
| 593 raise error.NodeNotFound() | |
| 107 | 594 |
| 430 | 595 def _updateCachedConfiguration(self, __, options): |
| 596 self._config.update(options) | |
|
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597 |
| 352 | 598 def getSchema(self): |
| 599 return self._schema | |
| 600 | |
| 601 def setSchema(self, schema): | |
| 602 d = self.dbpool.runInteraction(self._setSchema, schema) | |
| 603 d.addCallback(self._setCachedSchema, schema) | |
| 604 return d | |
| 605 | |
| 606 def _setSchema(self, cursor, schema): | |
| 607 self._checkNodeExists(cursor) | |
| 608 cursor.execute("""UPDATE nodes SET schema=%s | |
| 609 WHERE node_id=%s""", | |
| 610 (schema.toXml() if schema else None, | |
| 611 self.nodeDbId)) | |
| 612 | |
| 430 | 613 def _setCachedSchema(self, __, schema): |
| 352 | 614 self._schema = schema |
| 615 | |
|
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616 def getMetaData(self): |
| 107 | 617 config = copy.copy(self._config) |
|
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618 config["pubsub#node_type"] = self.nodeType |
| 107 | 619 return config |
| 620 | |
|
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621 def getAffiliation(self, entity): |
|
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622 return self.dbpool.runInteraction(self._getAffiliation, entity) |
| 107 | 623 |
|
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624 def _getAffiliation(self, cursor, entity): |
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625 self._checkNodeExists(cursor) |
| 107 | 626 cursor.execute("""SELECT affiliation FROM affiliations |
|
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627 NATURAL JOIN nodes |
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628 NATURAL JOIN entities |
|
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629 WHERE node_id=%s AND jid=%s""", |
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630 (self.nodeDbId, |
|
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631 entity.userhost())) |
| 107 | 632 |
| 633 try: | |
| 634 return cursor.fetchone()[0] | |
| 635 except TypeError: | |
| 636 return None | |
| 637 | |
|
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638 def getAccessModel(self): |
|
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639 return self._config[const.OPT_ACCESS_MODEL] |
|
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640 |
|
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641 def getSubscription(self, subscriber): |
|
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642 return self.dbpool.runInteraction(self._getSubscription, subscriber) |
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643 |
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644 def _getSubscription(self, cursor, subscriber): |
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645 self._checkNodeExists(cursor) |
|
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646 |
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647 userhost = subscriber.userhost() |
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648 resource = subscriber.resource or '' |
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649 |
|
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650 cursor.execute("""SELECT state FROM subscriptions |
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651 NATURAL JOIN nodes |
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652 NATURAL JOIN entities |
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653 WHERE node_id=%s AND jid=%s AND resource=%s""", |
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654 (self.nodeDbId, |
|
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655 userhost, |
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656 resource)) |
|
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657 |
|
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658 row = cursor.fetchone() |
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659 if not row: |
|
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660 return None |
|
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661 else: |
|
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662 return Subscription(self.nodeIdentifier, subscriber, row[0]) |
|
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663 |
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664 def getSubscriptions(self, state=None): |
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665 return self.dbpool.runInteraction(self._getSubscriptions, state) |
|
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666 |
|
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667 def _getSubscriptions(self, cursor, state): |
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668 self._checkNodeExists(cursor) |
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669 |
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670 query = """SELECT node, jid, resource, state, |
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671 subscription_type, subscription_depth |
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672 FROM subscriptions |
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673 NATURAL JOIN nodes |
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674 NATURAL JOIN entities |
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675 WHERE node_id=%s""" |
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676 values = [self.nodeDbId] |
|
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677 |
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678 if state: |
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679 query += " AND state=%s" |
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680 values.append(state) |
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681 |
|
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682 cursor.execute(query, values) |
|
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683 rows = cursor.fetchall() |
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684 |
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685 subscriptions = [] |
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686 for row in rows: |
| 414 | 687 subscriber = jid.JID('%s/%s' % (row.jid, row.resource)) |
|
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688 |
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689 options = {} |
|
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690 if row.subscription_type: |
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691 options['pubsub#subscription_type'] = row.subscription_type; |
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692 if row.subscription_depth: |
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693 options['pubsub#subscription_depth'] = row.subscription_depth; |
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694 |
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695 subscriptions.append(Subscription(row.node, subscriber, |
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696 row.state, options)) |
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697 |
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698 return subscriptions |
| 107 | 699 |
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700 def addSubscription(self, subscriber, state, config): |
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701 return self.dbpool.runInteraction(self._addSubscription, subscriber, |
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702 state, config) |
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703 |
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704 def _addSubscription(self, cursor, subscriber, state, config): |
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705 self._checkNodeExists(cursor) |
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706 |
| 107 | 707 userhost = subscriber.userhost() |
| 708 resource = subscriber.resource or '' | |
| 709 | |
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710 subscription_type = config.get('pubsub#subscription_type') |
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711 subscription_depth = config.get('pubsub#subscription_depth') |
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712 |
| 107 | 713 try: |
| 714 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", | |
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715 (userhost,)) |
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716 except cursor._pool.dbapi.IntegrityError: |
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717 cursor.connection.rollback() |
| 107 | 718 |
| 719 try: | |
| 720 cursor.execute("""INSERT INTO subscriptions | |
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721 (node_id, entity_id, resource, state, |
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722 subscription_type, subscription_depth) |
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723 SELECT %s, entity_id, %s, %s, %s, %s FROM |
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724 (SELECT entity_id FROM entities |
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725 WHERE jid=%s) AS ent_id""", |
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726 (self.nodeDbId, |
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727 resource, |
|
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728 state, |
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729 subscription_type, |
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730 subscription_depth, |
|
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731 userhost)) |
|
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732 except cursor._pool.dbapi.IntegrityError: |
|
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733 raise error.SubscriptionExists() |
|
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734 |
|
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735 def removeSubscription(self, subscriber): |
|
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736 return self.dbpool.runInteraction(self._removeSubscription, |
|
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737 subscriber) |
|
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738 |
|
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739 def _removeSubscription(self, cursor, subscriber): |
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740 self._checkNodeExists(cursor) |
|
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741 |
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742 userhost = subscriber.userhost() |
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743 resource = subscriber.resource or '' |
| 107 | 744 |
|
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745 cursor.execute("""DELETE FROM subscriptions WHERE |
|
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746 node_id=%s AND |
|
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747 entity_id=(SELECT entity_id FROM entities |
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748 WHERE jid=%s) AND |
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749 resource=%s""", |
|
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750 (self.nodeDbId, |
|
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|
751 userhost, |
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752 resource)) |
|
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753 if cursor.rowcount != 1: |
|
171
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754 raise error.NotSubscribed() |
| 107 | 755 |
|
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756 return None |
| 107 | 757 |
|
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758 def setSubscriptions(self, subscriptions): |
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759 return self.dbpool.runInteraction(self._setSubscriptions, subscriptions) |
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760 |
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761 def _setSubscriptions(self, cursor, subscriptions): |
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762 self._checkNodeExists(cursor) |
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763 |
|
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764 entities = self.getOrCreateEntities(cursor, [s.subscriber for s in subscriptions]) |
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765 entities_map = {jid.JID(e.jid): e for e in entities} |
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766 |
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767 # then we construct values for subscriptions update according to entity_id we just got |
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768 placeholders = ','.join(len(subscriptions) * ["%s"]) |
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769 values = [] |
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770 for subscription in subscriptions: |
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771 entity_id = entities_map[subscription.subscriber].entity_id |
| 414 | 772 resource = subscription.subscriber.resource or '' |
|
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773 values.append((self.nodeDbId, entity_id, resource, subscription.state, None, None)) |
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774 # 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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775 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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776 |
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777 def isSubscribed(self, entity): |
|
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778 return self.dbpool.runInteraction(self._isSubscribed, entity) |
|
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779 |
|
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780 def _isSubscribed(self, cursor, entity): |
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781 self._checkNodeExists(cursor) |
|
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782 |
|
276
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783 cursor.execute("""SELECT 1 as bool FROM entities |
|
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784 NATURAL JOIN subscriptions |
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785 NATURAL JOIN nodes |
|
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786 WHERE entities.jid=%s |
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787 AND node_id=%s AND state='subscribed'""", |
|
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788 (entity.userhost(), |
|
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789 self.nodeDbId)) |
|
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790 |
|
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791 return cursor.fetchone() is not None |
| 107 | 792 |
|
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793 def getAffiliations(self): |
|
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794 return self.dbpool.runInteraction(self._getAffiliations) |
|
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|
795 |
|
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796 def _getAffiliations(self, cursor): |
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797 self._checkNodeExists(cursor) |
|
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798 |
|
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|
799 cursor.execute("""SELECT jid, affiliation FROM nodes |
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800 NATURAL JOIN affiliations |
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801 NATURAL JOIN entities |
|
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802 WHERE node_id=%s""", |
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|
803 (self.nodeDbId,)) |
|
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|
804 result = cursor.fetchall() |
|
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|
805 |
|
330
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806 return {jid.internJID(r[0]): r[1] for r in result} |
|
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|
807 |
| 331 | 808 def getOrCreateEntities(self, cursor, entities_jids): |
| 809 """Get entity_id from entities in entities table | |
| 810 | |
| 811 Entities will be inserted it they don't exist | |
| 812 @param entities_jid(list[jid.JID]): entities to get or create | |
|
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|
813 @return list[record(entity_id,jid)]]: list of entity_id and jid (as plain string) |
| 331 | 814 both existing and inserted entities are returned |
| 815 """ | |
| 816 # cf. http://stackoverflow.com/a/35265559 | |
| 817 placeholders = ','.join(len(entities_jids) * ["(%s)"]) | |
| 818 query = ( | |
| 819 """ | |
| 820 WITH | |
| 821 jid_values (jid) AS ( | |
| 822 VALUES {placeholders} | |
| 823 ), | |
| 824 inserted (entity_id, jid) AS ( | |
| 825 INSERT INTO entities (jid) | |
| 826 SELECT jid | |
| 827 FROM jid_values | |
| 828 ON CONFLICT DO NOTHING | |
| 829 RETURNING entity_id, jid | |
| 830 ) | |
| 831 SELECT e.entity_id, e.jid | |
| 832 FROM entities e JOIN jid_values jv ON jv.jid = e.jid | |
| 833 UNION ALL | |
| 834 SELECT entity_id, jid | |
| 835 FROM inserted""".format(placeholders=placeholders)) | |
| 836 cursor.execute(query, [j.userhost() for j in entities_jids]) | |
| 837 return cursor.fetchall() | |
| 838 | |
| 839 def setAffiliations(self, affiliations): | |
| 840 return self.dbpool.runInteraction(self._setAffiliations, affiliations) | |
| 841 | |
| 842 def _setAffiliations(self, cursor, affiliations): | |
| 843 self._checkNodeExists(cursor) | |
| 844 | |
| 845 entities = self.getOrCreateEntities(cursor, affiliations) | |
| 846 | |
| 847 # then we construct values for affiliations update according to entity_id we just got | |
| 848 placeholders = ','.join(len(affiliations) * ["(%s,%s,%s)"]) | |
| 849 values = [] | |
| 414 | 850 for e in entities: |
| 851 values.extend((e.entity_id, affiliations[jid.JID(e.jid)], self.nodeDbId)) | |
| 331 | 852 |
| 853 # we use upsert so new values are inserted and existing one updated. This feature is only available for PostgreSQL >= 9.5 | |
| 854 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) | |
| 855 | |
| 856 def deleteAffiliations(self, entities): | |
| 857 return self.dbpool.runInteraction(self._deleteAffiliations, entities) | |
| 858 | |
| 859 def _deleteAffiliations(self, cursor, entities): | |
| 860 """delete affiliations and subscriptions for this entity""" | |
| 861 self._checkNodeExists(cursor) | |
| 862 placeholders = ','.join(len(entities) * ["%s"]) | |
| 863 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]) | |
| 864 | |
| 865 rows = cursor.fetchall() | |
| 866 placeholders = ','.join(len(rows) * ["%s"]) | |
| 867 cursor.execute("DELETE FROM subscriptions WHERE node_id=%s AND entity_id in (" + placeholders + ")", [self.nodeDbId] + [r[0] for r in rows]) | |
| 868 | |
| 869 def getAuthorizedGroups(self): | |
| 870 return self.dbpool.runInteraction(self._getNodeGroups) | |
| 871 | |
| 872 def _getAuthorizedGroups(self, cursor): | |
| 873 cursor.execute("SELECT groupname FROM node_groups_authorized NATURAL JOIN nodes WHERE node=%s", | |
| 874 (self.nodeDbId,)) | |
| 875 rows = cursor.fetchall() | |
| 876 return [row[0] for row in rows] | |
|
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877 |
|
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878 |
| 414 | 879 @implementer(iidavoll.ILeafNode) |
|
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880 class LeafNode(Node): |
|
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881 |
| 107 | 882 |
|
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883 nodeType = 'leaf' |
| 107 | 884 |
|
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885 def getOrderBy(self, ext_data, direction='DESC'): |
|
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886 """Return ORDER BY clause corresponding to Order By key in ext_data |
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887 |
|
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888 @param ext_data (dict): extra data as used in getItems |
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889 @param direction (unicode): ORDER BY direction (ASC or DESC) |
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|
890 @return (unicode): ORDER BY clause to use |
|
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891 """ |
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892 keys = ext_data.get('order_by') |
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893 if not keys: |
| 414 | 894 return 'ORDER BY updated ' + direction |
|
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895 cols_statmnt = [] |
|
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896 for key in keys: |
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|
897 if key == 'creation': |
|
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898 column = 'item_id' # could work with items.created too |
|
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|
899 elif key == 'modification': |
|
378
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900 column = 'updated' |
|
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901 else: |
| 414 | 902 log.msg("WARNING: Unknown order by key: {key}".format(key=key)) |
|
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|
903 column = 'updated' |
| 414 | 904 cols_statmnt.append(column + ' ' + direction) |
|
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|
905 |
| 414 | 906 return "ORDER BY " + ",".join([col for col in cols_statmnt]) |
|
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|
907 |
|
393
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|
908 @defer.inlineCallbacks |
|
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|
909 def storeItems(self, items_data, publisher): |
|
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|
910 # XXX: runInteraction doesn't seem to work when there are several "insert" |
|
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|
911 # or "update". |
|
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|
912 # Before the unpacking was done in _storeItems, but this was causing trouble |
|
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|
913 # in case of multiple items_data. So this has now be moved here. |
|
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|
914 # FIXME: investigate the issue with runInteraction |
|
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|
915 for item_data in items_data: |
|
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|
916 yield self.dbpool.runInteraction(self._storeItems, item_data, publisher) |
|
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|
917 |
|
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|
918 def _storeItems(self, cursor, item_data, publisher): |
| 250 | 919 self._checkNodeExists(cursor) |
|
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|
920 self._storeItem(cursor, item_data, publisher) |
| 244 | 921 |
|
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diff
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|
922 def _storeItem(self, cursor, item_data, publisher): |
|
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|
923 # first try to insert the item |
|
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924 # - if it fails (conflict), and the item is new and we have serial_ids options, |
|
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|
925 # current id will be recomputed using next item id query (note that is not perfect, as |
|
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|
926 # table is not locked and this can fail if two items are added at the same time |
|
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|
927 # but this can only happen with serial_ids and if future ids have been set by a client, |
|
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|
928 # this case should be rare enough to consider this situation acceptable) |
|
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|
929 # - if item insertion fail and the item is not new, we do an update |
|
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|
930 # - in other cases, exception is raised |
|
301
05c875a13a62
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diff
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|
931 item, access_model, item_config = item_data.item, item_data.access_model, item_data.config |
|
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|
932 data = item.toXml() |
| 430 | 933 data_fts_cfg = self._config[const.OPT_FTS_LANGUAGE] |
| 934 if data_fts_cfg == const.VAL_FTS_GENERIC: | |
| 935 data_fts_cfg = "simple" | |
|
262
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diff
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|
936 |
| 430 | 937 insert_query = ( |
| 938 "INSERT INTO items(node_id, item, publisher, data, access_model, " | |
| 939 "data_fts_cfg) VALUES (%s, %s, %s, %s, %s, %s) RETURNING item_id" | |
| 940 ) | |
|
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|
941 insert_data = [self.nodeDbId, |
|
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|
942 item["id"], |
|
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|
943 publisher.full(), |
|
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|
944 data, |
|
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|
945 access_model, |
| 430 | 946 data_fts_cfg, |
| 947 ] | |
|
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948 |
|
367
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|
949 try: |
|
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|
950 cursor.execute(insert_query, insert_data) |
|
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951 except cursor._pool.dbapi.IntegrityError as e: |
|
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|
952 if e.pgcode != "23505": |
|
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|
953 # we only handle unique_violation, every other exception must be raised |
|
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|
954 raise e |
|
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|
955 cursor.connection.rollback() |
|
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|
956 # the item already exist |
|
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|
957 if item_data.new: |
|
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|
958 # the item is new |
|
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|
959 if self._config[const.OPT_SERIAL_IDS]: |
|
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|
960 # this can happen with serial_ids, if a item has been stored |
|
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|
961 # with a future id (generated by XMPP client) |
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|
962 cursor.execute(NEXT_ITEM_ID_QUERY.format(node_id=self.nodeDbId)) |
|
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|
963 next_id = cursor.fetchone()[0] |
|
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|
964 # we update the sequence, so we can skip conflicting ids |
| 414 | 965 cursor.execute("SELECT setval('{seq_name}', %s)".format( |
|
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|
966 seq_name = ITEMS_SEQ_NAME.format(node_id=self.nodeDbId)), [next_id]) |
|
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|
967 # and now we can retry the query with the new id |
| 414 | 968 item['id'] = insert_data[1] = str(next_id) |
|
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969 # item saved in DB must also be updated with the new id |
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970 insert_data[3] = item.toXml() |
|
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|
971 cursor.execute(insert_query, insert_data) |
|
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|
972 else: |
|
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|
973 # but if we have not serial_ids, we have a real problem |
|
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974 raise e |
|
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975 else: |
|
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|
976 # this is an update |
|
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|
977 cursor.execute("""UPDATE items SET updated=now(), publisher=%s, data=%s |
| 430 | 978 WHERE node_id=%s AND items.item=%s |
|
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|
979 RETURNING item_id""", |
|
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|
980 (publisher.full(), |
|
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|
981 data, |
|
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|
982 self.nodeDbId, |
|
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|
983 item["id"])) |
|
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|
984 if cursor.rowcount != 1: |
|
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|
985 raise exceptions.InternalError("item has not been updated correctly") |
|
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|
986 item_id = cursor.fetchone()[0]; |
|
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987 self._storeCategories(cursor, item_id, item_data.categories, update=True) |
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988 return |
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989 |
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990 item_id = cursor.fetchone()[0]; |
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991 self._storeCategories(cursor, item_id, item_data.categories) |
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992 |
|
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993 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
| 250 | 994 if const.OPT_ROSTER_GROUPS_ALLOWED in item_config: |
| 422 | 995 # XXX: needed to force list if there is only one value |
| 996 item_config.fields[const.OPT_ROSTER_GROUPS_ALLOWED].fieldType='list-multi' | |
| 250 | 997 allowed_groups = item_config[const.OPT_ROSTER_GROUPS_ALLOWED] |
|
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998 else: |
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999 allowed_groups = [] |
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1000 for group in allowed_groups: |
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1001 #TODO: check that group are actually in roster |
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1002 cursor.execute("""INSERT INTO item_groups_authorized (item_id, groupname) |
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1003 VALUES (%s,%s)""" , (item_id, group)) |
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1004 # TODO: whitelist access model |
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1005 |
| 422 | 1006 max_items = self._config.get(const.OPT_MAX_ITEMS, 'max') |
| 1007 | |
| 1008 if max_items != 'max': | |
| 1009 try: | |
| 1010 max_items = int(self._config[const.OPT_MAX_ITEMS]) | |
| 1011 except ValueError: | |
| 1012 log.err(f"Invalid max_items value: {max_items!r}") | |
| 1013 else: | |
| 1014 if max_items > 0: | |
| 1015 # we delete all items above the requested max | |
| 1016 cursor.execute( | |
| 1017 "DELETE FROM items WHERE node_id=%s and item_id in (SELECT " | |
| 1018 "item_id FROM items WHERE node_id=%s ORDER BY items.updated " | |
| 1019 "DESC, items.item_id DESC OFFSET %s)" , | |
| 1020 (self.nodeDbId, self.nodeDbId, max_items) | |
| 1021 ) | |
| 1022 | |
| 1023 | |
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1024 def _storeCategories(self, cursor, item_id, categories, update=False): |
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1025 # TODO: handle canonical form |
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1026 if update: |
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1027 cursor.execute("""DELETE FROM item_categories |
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1028 WHERE item_id=%s""", (item_id,)) |
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1029 |
|
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1030 # we use a set to avoid duplicates |
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1031 for category in set(categories): |
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1032 cursor.execute("""INSERT INTO item_categories (item_id, category) |
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1033 VALUES (%s, %s)""", (item_id, category)) |
| 107 | 1034 |
|
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1035 def removeItems(self, itemIdentifiers): |
|
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1036 return self.dbpool.runInteraction(self._removeItems, itemIdentifiers) |
|
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1037 |
|
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1038 def _removeItems(self, cursor, itemIdentifiers): |
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1039 self._checkNodeExists(cursor) |
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1040 |
|
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1041 deleted = [] |
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1042 |
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1043 for itemIdentifier in itemIdentifiers: |
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1044 cursor.execute("""DELETE FROM items WHERE |
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1045 node_id=%s AND |
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1046 item=%s""", |
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1047 (self.nodeDbId, |
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1048 itemIdentifier)) |
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1049 |
|
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1050 if cursor.rowcount: |
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1051 deleted.append(itemIdentifier) |
|
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1052 |
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1053 return deleted |
| 107 | 1054 |
| 278 | 1055 def getItems(self, authorized_groups, unrestricted, maxItems=None, ext_data=None): |
|
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1056 """ Get all authorised items |
| 346 | 1057 |
|
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1058 @param authorized_groups: we want to get items that these groups can access |
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1059 @param unrestricted: if true, don't check permissions (i.e.: get all items) |
| 318 | 1060 @param maxItems: nb of items we want to get |
| 1061 @param ext_data: options for extra features like RSM and MAM | |
| 278 | 1062 |
|
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1063 @return: list of container.ItemData |
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1064 if unrestricted is False, access_model and config will be None |
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1065 """ |
| 278 | 1066 if ext_data is None: |
| 1067 ext_data = {} | |
| 347 | 1068 return self.dbpool.runInteraction(self._getItems, authorized_groups, unrestricted, maxItems, ext_data, ids_only=False) |
|
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1069 |
| 346 | 1070 def getItemsIds(self, authorized_groups, unrestricted, maxItems=None, ext_data=None): |
| 1071 """ Get all authorised items ids | |
| 1072 | |
| 1073 @param authorized_groups: we want to get items that these groups can access | |
| 1074 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1075 @param maxItems: nb of items we want to get | |
| 1076 @param ext_data: options for extra features like RSM and MAM | |
| 1077 | |
| 1078 @return list(unicode): list of ids | |
| 1079 """ | |
| 1080 if ext_data is None: | |
| 1081 ext_data = {} | |
| 1082 return self.dbpool.runInteraction(self._getItems, authorized_groups, unrestricted, maxItems, ext_data, ids_only=True) | |
| 1083 | |
| 318 | 1084 def _appendSourcesAndFilters(self, query, args, authorized_groups, unrestricted, ext_data): |
| 1085 """append sources and filters to sql query requesting items and return ORDER BY | |
| 278 | 1086 |
| 318 | 1087 arguments query, args, authorized_groups, unrestricted and ext_data are the same as for |
| 1088 _getItems | |
| 1089 """ | |
| 1090 # SOURCES | |
| 323 | 1091 query.append("FROM nodes INNER JOIN items USING (node_id)") |
| 1092 | |
|
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1093 if unrestricted: |
| 323 | 1094 query_filters = ["WHERE node_id=%s"] |
| 318 | 1095 args.append(self.nodeDbId) |
|
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1096 else: |
| 323 | 1097 query.append("LEFT JOIN item_groups_authorized USING (item_id)") |
| 318 | 1098 args.append(self.nodeDbId) |
| 1099 if authorized_groups: | |
| 1100 get_groups = " or (items.access_model='roster' and groupname in %s)" | |
| 1101 args.append(authorized_groups) | |
| 1102 else: | |
| 1103 get_groups = "" | |
| 278 | 1104 |
| 323 | 1105 query_filters = ["WHERE node_id=%s AND (items.access_model='open'" + get_groups + ")"] |
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1106 |
| 318 | 1107 # FILTERS |
|
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1108 if 'filters' in ext_data: # MAM filters |
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1109 for filter_ in ext_data['filters']: |
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1110 if filter_.var == 'start': |
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1111 query_filters.append("AND created>=%s") |
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1112 args.append(filter_.value) |
| 323 | 1113 elif filter_.var == 'end': |
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1114 query_filters.append("AND created<=%s") |
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1115 args.append(filter_.value) |
| 323 | 1116 elif filter_.var == 'with': |
|
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1117 jid_s = filter_.value |
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1118 if '/' in jid_s: |
| 323 | 1119 query_filters.append("AND publisher=%s") |
|
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1120 args.append(filter_.value) |
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1121 else: |
| 323 | 1122 query_filters.append("AND publisher LIKE %s") |
| 414 | 1123 args.append("{}%".format(filter_.value)) |
| 430 | 1124 elif filter_.var == const.MAM_FILTER_FTS: |
| 1125 fts_cfg = self._config[const.OPT_FTS_LANGUAGE] | |
| 1126 if fts_cfg == const.VAL_FTS_GENERIC: | |
| 1127 fts_cfg = "simple" | |
| 1128 query_filters.append( | |
| 1129 "AND data_fts @@ websearch_to_tsquery(%s, %s)" | |
| 1130 ) | |
| 1131 args.append(fts_cfg) | |
| 1132 args.append(filter_.value) | |
| 323 | 1133 elif filter_.var == const.MAM_FILTER_CATEGORY: |
| 1134 query.append("LEFT JOIN item_categories USING (item_id)") | |
| 1135 query_filters.append("AND category=%s") | |
| 1136 args.append(filter_.value) | |
| 1137 else: | |
| 1138 log.msg("WARNING: unknown filter: {}".format(filter_.encode('utf-8'))) | |
| 1139 | |
| 1140 query.extend(query_filters) | |
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1141 |
|
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1142 return self.getOrderBy(ext_data) |
| 318 | 1143 |
| 346 | 1144 def _getItems(self, cursor, authorized_groups, unrestricted, maxItems, ext_data, ids_only): |
| 318 | 1145 self._checkNodeExists(cursor) |
| 1146 | |
| 1147 if maxItems == 0: | |
| 1148 return [] | |
| 1149 | |
| 1150 args = [] | |
| 1151 | |
| 1152 # SELECT | |
| 346 | 1153 if ids_only: |
| 1154 query = ["SELECT item"] | |
| 1155 else: | |
|
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1156 query = ["SELECT data::text,items.access_model,item_id,created,updated"] |
| 318 | 1157 |
| 1158 query_order = self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 278 | 1159 |
| 1160 if 'rsm' in ext_data: | |
| 1161 rsm = ext_data['rsm'] | |
| 1162 maxItems = rsm.max | |
| 1163 if rsm.index is not None: | |
|
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1164 # We need to know the item_id of corresponding to the index (offset) of the current query |
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1165 # so we execute the query to look for the item_id |
| 318 | 1166 tmp_query = query[:] |
| 1167 tmp_args = args[:] | |
|
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1168 tmp_query[0] = "SELECT item_id" |
| 318 | 1169 tmp_query.append("{} LIMIT 1 OFFSET %s".format(query_order)) |
| 1170 tmp_args.append(rsm.index) | |
| 1171 cursor.execute(' '.join(query), args) | |
| 1172 # FIXME: bad index is not managed yet | |
|
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1173 item_id = cursor.fetchall()[0][0] |
| 318 | 1174 |
|
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1175 # now that we have the id, we can use it |
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1176 query.append("AND item_id<=%s") |
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1177 args.append(item_id) |
| 278 | 1178 elif rsm.before is not None: |
| 1179 if rsm.before != '': | |
|
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1180 query.append("AND item_id>(SELECT item_id FROM items WHERE item=%s LIMIT 1)") |
| 278 | 1181 args.append(rsm.before) |
| 318 | 1182 if maxItems is not None: |
| 1183 # if we have maxItems (i.e. a limit), we need to reverse order | |
| 1184 # in a first query to get the right items | |
| 1185 query.insert(0,"SELECT * from (") | |
|
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1186 query.append(self.getOrderBy(ext_data, direction='ASC')) |
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1187 query.append("LIMIT %s) as x") |
| 318 | 1188 args.append(maxItems) |
| 278 | 1189 elif rsm.after: |
|
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1190 query.append("AND item_id<(SELECT item_id FROM items WHERE item=%s LIMIT 1)") |
| 278 | 1191 args.append(rsm.after) |
| 1192 | |
| 318 | 1193 query.append(query_order) |
| 278 | 1194 |
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1195 if maxItems is not None: |
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1196 query.append("LIMIT %s") |
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1197 args.append(maxItems) |
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1198 |
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1199 cursor.execute(' '.join(query), args) |
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1200 |
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1201 result = cursor.fetchall() |
| 346 | 1202 if unrestricted and not ids_only: |
| 318 | 1203 # with unrestricted query, we need to fill the access_list for a roster access items |
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1204 ret = [] |
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1205 for item_data in result: |
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1206 item = generic.stripNamespace(parseXml(item_data.data)) |
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1207 access_model = item_data.access_model |
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1208 item_id = item_data.item_id |
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1209 created = item_data.created |
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1210 updated = item_data.updated |
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1211 access_list = {} |
|
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1212 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
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1213 cursor.execute('SELECT groupname FROM item_groups_authorized WHERE item_id=%s', (item_id,)) |
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1214 access_list[const.OPT_ROSTER_GROUPS_ALLOWED] = [r.groupname for r in cursor.fetchall()] |
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1215 |
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1216 ret.append(container.ItemData(item, access_model, access_list, created=created, updated=updated)) |
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1217 # TODO: whitelist item access model |
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1218 return ret |
| 318 | 1219 |
| 346 | 1220 if ids_only: |
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1221 return [r.item for r in result] |
| 346 | 1222 else: |
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1223 items_data = [container.ItemData(generic.stripNamespace(parseXml(r.data)), r.access_model, created=r.created, updated=r.updated) for r in result] |
|
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1224 return items_data |
| 107 | 1225 |
|
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1226 def getItemsById(self, authorized_groups, unrestricted, itemIdentifiers): |
|
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1227 """Get items which are in the given list |
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1228 |
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1229 @param authorized_groups: we want to get items that these groups can access |
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1230 @param unrestricted: if true, don't check permissions |
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1231 @param itemIdentifiers: list of ids of the items we want to get |
|
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1232 @return: list of container.ItemData |
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1233 ItemData.config will contains access_list (managed as a dictionnary with same key as for item_config) |
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1234 if unrestricted is False, access_model and config will be None |
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1235 """ |
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1236 return self.dbpool.runInteraction(self._getItemsById, authorized_groups, unrestricted, itemIdentifiers) |
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1237 |
|
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1238 def _getItemsById(self, cursor, authorized_groups, unrestricted, itemIdentifiers): |
|
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1239 self._checkNodeExists(cursor) |
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1240 ret = [] |
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1241 if unrestricted: #we get everything without checking permissions |
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1242 for itemIdentifier in itemIdentifiers: |
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1243 cursor.execute("""SELECT data::text,items.access_model,item_id,created,updated FROM nodes |
|
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1244 INNER JOIN items USING (node_id) |
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1245 WHERE node_id=%s AND item=%s""", |
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1246 (self.nodeDbId, |
|
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1247 itemIdentifier)) |
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1248 result = cursor.fetchone() |
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1249 if not result: |
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1250 raise error.ItemNotFound() |
| 107 | 1251 |
|
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1252 item = generic.stripNamespace(parseXml(result[0])) |
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1253 access_model = result[1] |
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1254 item_id = result[2] |
|
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1255 created= result[3] |
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1256 updated= result[4] |
|
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1257 access_list = {} |
|
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1258 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
|
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1259 cursor.execute('SELECT groupname FROM item_groups_authorized WHERE item_id=%s', (item_id,)) |
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1260 access_list[const.OPT_ROSTER_GROUPS_ALLOWED] = [r[0] for r in cursor.fetchall()] |
|
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1261 #TODO: WHITELIST access_model |
|
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1262 |
|
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1263 ret.append(container.ItemData(item, access_model, access_list, created=created, updated=updated)) |
|
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1264 else: #we check permission before returning items |
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1265 for itemIdentifier in itemIdentifiers: |
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1266 args = [self.nodeDbId, itemIdentifier] |
|
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1267 if authorized_groups: |
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1268 args.append(authorized_groups) |
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1269 cursor.execute("""SELECT data::text, created, updated FROM nodes |
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1270 INNER JOIN items USING (node_id) |
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1271 LEFT JOIN item_groups_authorized USING (item_id) |
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1272 WHERE node_id=%s AND item=%s AND |
|
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1273 (items.access_model='open' """ + |
|
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1274 ("or (items.access_model='roster' and groupname in %s)" if authorized_groups else '') + ")", |
|
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1275 args) |
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1276 |
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1277 result = cursor.fetchone() |
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1278 if result: |
|
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1279 ret.append(container.ItemData(generic.stripNamespace(parseXml(result[0])), created=result[1], updated=result[2])) |
|
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1280 |
|
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1281 return ret |
|
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1282 |
| 318 | 1283 def getItemsCount(self, authorized_groups, unrestricted, ext_data=None): |
| 1284 """Count expected number of items in a getItems query | |
| 1285 | |
| 1286 @param authorized_groups: we want to get items that these groups can access | |
| 1287 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1288 @param ext_data: options for extra features like RSM and MAM | |
| 1289 """ | |
| 1290 if ext_data is None: | |
| 1291 ext_data = {} | |
| 1292 return self.dbpool.runInteraction(self._getItemsCount, authorized_groups, unrestricted, ext_data) | |
| 1293 | |
| 1294 def _getItemsCount(self, cursor, authorized_groups, unrestricted, ext_data): | |
| 1295 self._checkNodeExists(cursor) | |
| 1296 args = [] | |
| 1297 | |
| 1298 # SELECT | |
| 1299 query = ["SELECT count(1)"] | |
| 1300 | |
| 1301 self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 1302 | |
| 1303 cursor.execute(' '.join(query), args) | |
| 1304 return cursor.fetchall()[0][0] | |
| 1305 | |
| 1306 def getItemsIndex(self, item_id, authorized_groups, unrestricted, ext_data=None): | |
| 1307 """Get expected index of first item in the window of a getItems query | |
| 1308 | |
| 1309 @param item_id: id of the item | |
| 1310 @param authorized_groups: we want to get items that these groups can access | |
| 1311 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1312 @param ext_data: options for extra features like RSM and MAM | |
| 1313 """ | |
| 1314 if ext_data is None: | |
| 1315 ext_data = {} | |
| 1316 return self.dbpool.runInteraction(self._getItemsIndex, item_id, authorized_groups, unrestricted, ext_data) | |
| 1317 | |
| 1318 def _getItemsIndex(self, cursor, item_id, authorized_groups, unrestricted, ext_data): | |
| 1319 self._checkNodeExists(cursor) | |
| 1320 args = [] | |
| 1321 | |
| 1322 # SELECT | |
| 1323 query = [] | |
| 1324 | |
| 1325 query_order = self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 1326 | |
| 1327 query_select = "SELECT row_number from (SELECT row_number() OVER ({}), item".format(query_order) | |
| 1328 query.insert(0, query_select) | |
| 1329 query.append(") as x WHERE item=%s") | |
| 1330 args.append(item_id) | |
| 1331 | |
| 1332 cursor.execute(' '.join(query), args) | |
| 1333 # XXX: row_number start at 1, but we want that index start at 0 | |
|
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1334 try: |
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1335 return cursor.fetchall()[0][0] - 1 |
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1336 except IndexError: |
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1337 raise error.NodeNotFound() |
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1338 |
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1339 def getItemsPublishers(self, itemIdentifiers): |
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1340 """Get the publishers for all given identifiers |
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1341 |
|
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|
1342 @return (dict[unicode, jid.JID]): map of itemIdentifiers to publisher |
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|
1343 if item is not found, key is skipped in resulting dict |
|
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1344 """ |
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1345 return self.dbpool.runInteraction(self._getItemsPublishers, itemIdentifiers) |
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1346 |
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1347 def _getItemsPublishers(self, cursor, itemIdentifiers): |
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1348 self._checkNodeExists(cursor) |
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1349 ret = {} |
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1350 for itemIdentifier in itemIdentifiers: |
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1351 cursor.execute("""SELECT publisher FROM items |
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1352 WHERE node_id=%s AND item=%s""", |
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1353 (self.nodeDbId, itemIdentifier,)) |
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1354 result = cursor.fetchone() |
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1355 if result: |
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1356 ret[itemIdentifier] = jid.JID(result[0]) |
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1357 return ret |
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1358 |
| 107 | 1359 def purge(self): |
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1360 return self.dbpool.runInteraction(self._purge) |
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1361 |
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1362 def _purge(self, cursor): |
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1363 self._checkNodeExists(cursor) |
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1364 |
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1365 cursor.execute("""DELETE FROM items WHERE |
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1366 node_id=%s""", |
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1367 (self.nodeDbId,)) |
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1368 |
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1369 |
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1370 class CollectionNode(Node): |
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1371 |
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1372 nodeType = 'collection' |