Mercurial > libervia-pubsub
annotate sat_pubsub/pgsql_storage.py @ 454:7f1394bb96db
psql: fix ordering by using windowed function `row_number`
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Mon, 02 Aug 2021 21:56:43 +0200 |
| parents | 0e6e176cb572 |
| children | b52ebc45b8e3 |
| rev | line source |
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| 414 | 1 #!/usr/bin/env python3 |
| 233 | 2 |
| 440 | 3 # Copyright (c) 2012-2021 Jérôme Poisson |
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4 # Copyright (c) 2013-2016 Adrien Cossa |
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5 # Copyright (c) 2003-2011 Ralph Meijer |
| 233 | 6 |
| 7 | |
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8 # This program is free software: you can redistribute it and/or modify |
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9 # it under the terms of the GNU Affero General Public License as published by |
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10 # the Free Software Foundation, either version 3 of the License, or |
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11 # (at your option) any later version. |
| 233 | 12 |
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13 # This program is distributed in the hope that it will be useful, |
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 # GNU Affero General Public License for more details. |
| 233 | 17 |
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18 # You should have received a copy of the GNU Affero General Public License |
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19 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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20 # -- |
| 233 | 21 |
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22 # This program is based on Idavoll (http://idavoll.ik.nu/), |
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23 # originaly written by Ralph Meijer (http://ralphm.net/blog/) |
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24 # It is sublicensed under AGPL v3 (or any later version) as allowed by the original |
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25 # license. |
| 233 | 26 |
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27 # -- |
| 233 | 28 |
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29 # Here is a copy of the original license: |
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30 |
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31 # Copyright (c) 2003-2011 Ralph Meijer |
| 233 | 32 |
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33 # Permission is hereby granted, free of charge, to any person obtaining |
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34 # a copy of this software and associated documentation files (the |
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35 # "Software"), to deal in the Software without restriction, including |
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36 # without limitation the rights to use, copy, modify, merge, publish, |
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37 # distribute, sublicense, and/or sell copies of the Software, and to |
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38 # permit persons to whom the Software is furnished to do so, subject to |
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39 # the following conditions: |
| 233 | 40 |
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41 # The above copyright notice and this permission notice shall be |
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42 # included in all copies or substantial portions of the Software. |
| 233 | 43 |
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44 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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45 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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46 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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47 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
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48 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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49 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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50 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 233 | 51 |
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52 |
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53 import copy, logging |
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54 |
| 414 | 55 from zope.interface import implementer |
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56 |
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57 from twisted.internet import reactor |
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58 from twisted.internet import defer |
| 107 | 59 from twisted.words.protocols.jabber import jid |
| 323 | 60 from twisted.python import log |
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61 |
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62 from wokkel import generic |
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63 from wokkel.pubsub import Subscription, BadRequest |
| 107 | 64 |
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65 from sat_pubsub import error |
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66 from sat_pubsub import iidavoll |
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67 from sat_pubsub import const |
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68 from sat_pubsub import container |
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69 from sat_pubsub import exceptions |
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70 import uuid |
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71 import psycopg2 |
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72 import psycopg2.extensions |
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73 # we wants psycopg2 to return us unicode, not str |
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74 psycopg2.extensions.register_type(psycopg2.extensions.UNICODE) |
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75 psycopg2.extensions.register_type(psycopg2.extensions.UNICODEARRAY) |
| 244 | 76 |
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77 # parseXml manage str, but we get unicode |
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78 parseXml = lambda unicode_data: generic.parseXml(unicode_data.encode('utf-8')) |
| 414 | 79 ITEMS_SEQ_NAME = 'node_{node_id}_seq' |
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80 PEP_COL_NAME = 'pep' |
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81 CURRENT_VERSION = '8' |
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82 # retrieve the maximum integer item id + 1 |
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83 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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84 |
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85 |
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86 def withPEP(query, values, pep, recipient): |
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87 """Helper method to facilitate PEP management |
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88 |
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89 @param query: SQL query basis |
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90 @param values: current values to replace in query |
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91 @param pep(bool): True if we are in PEP mode |
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92 @param recipient(jid.JID): jid of the recipient |
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93 @return: query + PEP AND check, |
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94 recipient's bare jid is added to value if needed |
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95 """ |
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96 if pep: |
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97 pep_check="AND {}=%s".format(PEP_COL_NAME) |
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98 values=list(values) + [recipient.userhost()] |
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99 else: |
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100 pep_check="AND {} IS NULL".format(PEP_COL_NAME) |
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101 return "{} {}".format(query, pep_check), values |
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102 |
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103 |
| 414 | 104 @implementer(iidavoll.IStorage) |
| 107 | 105 class Storage: |
| 106 | |
| 430 | 107 fts_languages = ['generic'] |
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108 defaultConfig = { |
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109 'leaf': { |
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110 const.OPT_PERSIST_ITEMS: True, |
| 422 | 111 const.OPT_MAX_ITEMS: 'max', |
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112 const.OPT_DELIVER_PAYLOADS: True, |
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113 const.OPT_SEND_LAST_PUBLISHED_ITEM: 'on_sub', |
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114 const.OPT_ACCESS_MODEL: const.VAL_AMODEL_DEFAULT, |
| 260 | 115 const.OPT_PUBLISH_MODEL: const.VAL_PMODEL_DEFAULT, |
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116 const.OPT_OVERWRITE_POLICY: const.VAL_OWPOL_DEFAUT, |
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117 const.OPT_SERIAL_IDS: False, |
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118 const.OPT_CONSISTENT_PUBLISHER: False, |
| 430 | 119 const.OPT_FTS_LANGUAGE: const.VAL_FTS_GENERIC, |
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120 }, |
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121 'collection': { |
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122 const.OPT_DELIVER_PAYLOADS: True, |
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123 const.OPT_SEND_LAST_PUBLISHED_ITEM: 'on_sub', |
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124 const.OPT_ACCESS_MODEL: const.VAL_AMODEL_DEFAULT, |
| 260 | 125 const.OPT_PUBLISH_MODEL: const.VAL_PMODEL_DEFAULT, |
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126 } |
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127 } |
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128 |
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129 def __init__(self, dbpool): |
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130 self.dbpool = dbpool |
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131 d = self.dbpool.runQuery("SELECT value FROM metadata WHERE key='version'") |
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132 d.addCallbacks(self._checkVersion, self._versionEb) |
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133 |
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134 def _checkVersion(self, row): |
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135 version = row[0].value |
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136 if version != CURRENT_VERSION: |
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137 logging.error("Bad database schema version ({current}), please upgrade to {needed}".format( |
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138 current=version, needed=CURRENT_VERSION)) |
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139 reactor.stop() |
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140 |
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141 def _versionEb(self, failure): |
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142 logging.error("Can't check schema version: {reason}".format(reason=failure)) |
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143 reactor.stop() |
| 107 | 144 |
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145 def _buildNode(self, row): |
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146 """Build a note class from database result row""" |
|
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147 if not row: |
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148 raise error.NodeNotFound() |
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149 |
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150 if row[2] == 'leaf': |
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151 configuration = { |
| 422 | 152 const.OPT_PERSIST_ITEMS: row[3], |
| 153 const.OPT_MAX_ITEMS: 'max' if row[4] == 0 else str(row[4]), | |
| 154 const.OPT_DELIVER_PAYLOADS: row[5], | |
| 155 const.OPT_SEND_LAST_PUBLISHED_ITEM: row[6], | |
| 156 const.OPT_ACCESS_MODEL:row[7], | |
| 157 const.OPT_PUBLISH_MODEL:row[8], | |
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158 const.OPT_OVERWRITE_POLICY: row[9], |
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159 const.OPT_SERIAL_IDS:row[10], |
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160 const.OPT_CONSISTENT_PUBLISHER:row[11], |
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161 const.OPT_FTS_LANGUAGE: row[12], |
|
259
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162 } |
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163 schema = row[13] |
| 352 | 164 if schema is not None: |
| 165 schema = parseXml(schema) | |
| 166 node = LeafNode(row[0], row[1], configuration, schema) | |
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167 node.dbpool = self.dbpool |
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168 return node |
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169 elif row[2] == 'collection': |
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170 configuration = { |
| 422 | 171 const.OPT_DELIVER_PAYLOADS: row[5], |
| 172 const.OPT_SEND_LAST_PUBLISHED_ITEM: row[6], | |
| 173 const.OPT_ACCESS_MODEL: row[7], | |
| 174 const.OPT_PUBLISH_MODEL:row[8], | |
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175 } |
| 352 | 176 node = CollectionNode(row[0], row[1], configuration, None) |
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177 node.dbpool = self.dbpool |
| 107 | 178 return node |
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179 else: |
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180 raise BadRequest(text="Unknown node type !") |
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181 |
| 430 | 182 def getFTSLanguages(self): |
| 183 """Get list of available languages for full text search""" | |
| 184 return self.dbpool.runInteraction(self._getFTSLanguages) | |
| 185 | |
| 186 def _getFTSLanguages(self, cursor): | |
| 187 cursor.execute("SELECT cfgname FROM pg_ts_config") | |
| 188 result = [r.cfgname for r in cursor.fetchall()] | |
| 189 result.remove("simple") | |
| 190 result.insert(0, "generic") | |
| 191 Node.fts_languages = self.fts_languages = result | |
| 192 return result | |
| 193 | |
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194 def getNodeById(self, nodeDbId): |
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195 """Get node using database ID insted of pubsub identifier |
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196 |
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197 @param nodeDbId(unicode): database ID |
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198 """ |
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199 return self.dbpool.runInteraction(self._getNodeById, nodeDbId) |
|
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200 |
|
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201 def _getNodeById(self, cursor, nodeDbId): |
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202 cursor.execute("""SELECT node_id, |
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203 node, |
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204 node_type, |
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205 persist_items, |
| 422 | 206 max_items, |
|
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207 deliver_payloads, |
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208 send_last_published_item, |
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209 access_model, |
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210 publish_model, |
|
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211 overwrite_policy, |
|
367
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212 serial_ids, |
|
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213 consistent_publisher, |
| 430 | 214 fts_language, |
| 352 | 215 schema::text, |
|
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216 pep |
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217 FROM nodes |
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218 WHERE node_id=%s""", |
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219 (nodeDbId,)) |
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220 row = cursor.fetchone() |
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221 return self._buildNode(row) |
|
198
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222 |
|
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223 def getNode(self, nodeIdentifier, pep, recipient=None): |
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224 return self.dbpool.runInteraction(self._getNode, nodeIdentifier, pep, recipient) |
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225 |
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226 def _getNode(self, cursor, nodeIdentifier, pep, recipient): |
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227 cursor.execute(*withPEP("""SELECT node_id, |
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228 node, |
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229 node_type, |
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230 persist_items, |
| 422 | 231 max_items, |
|
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232 deliver_payloads, |
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233 send_last_published_item, |
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234 access_model, |
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235 publish_model, |
|
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236 overwrite_policy, |
|
367
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237 serial_ids, |
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238 consistent_publisher, |
| 430 | 239 fts_language, |
| 352 | 240 schema::text, |
|
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241 pep |
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242 FROM nodes |
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243 WHERE node=%s""", |
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244 (nodeIdentifier,), pep, recipient)) |
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245 row = cursor.fetchone() |
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246 return self._buildNode(row) |
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247 |
|
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248 def getNodeIds(self, pep, recipient, allowed_accesses=None): |
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249 """retrieve ids of existing nodes |
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250 |
|
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251 @param pep(bool): True if it's a PEP request |
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252 @param recipient(jid.JID, None): recipient of the PEP request |
|
349
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253 @param allowed_accesses(None, set): only nodes with access |
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254 in this set will be returned |
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255 None to return all nodes |
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256 @return (list[unicode]): ids of nodes |
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257 """ |
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258 if not pep: |
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259 query = "SELECT node from nodes WHERE pep is NULL" |
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260 values = [] |
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261 else: |
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262 query = "SELECT node from nodes WHERE pep=%s" |
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263 values = [recipient.userhost()] |
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264 |
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265 if allowed_accesses is not None: |
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266 query += "AND access_model IN %s" |
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267 values.append(tuple(allowed_accesses)) |
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268 |
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269 d = self.dbpool.runQuery(query, values) |
| 107 | 270 d.addCallback(lambda results: [r[0] for r in results]) |
| 271 return d | |
| 272 | |
| 352 | 273 def createNode(self, nodeIdentifier, owner, config, schema, pep, recipient=None): |
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274 return self.dbpool.runInteraction(self._createNode, nodeIdentifier, |
| 352 | 275 owner, config, schema, pep, recipient) |
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276 |
| 352 | 277 def _createNode(self, cursor, nodeIdentifier, owner, config, schema, pep, recipient): |
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278 if config['pubsub#node_type'] != 'leaf': |
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279 raise error.NoCollections() |
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280 |
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281 owner = owner.userhost() |
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282 |
| 107 | 283 try: |
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284 cursor.execute("""INSERT INTO nodes |
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285 (node, |
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286 node_type, |
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287 persist_items, |
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288 deliver_payloads, |
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289 send_last_published_item, |
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290 access_model, |
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291 publish_model, |
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292 overwrite_policy, |
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293 serial_ids, |
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294 consistent_publisher, |
| 430 | 295 fts_language, |
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296 schema, |
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297 pep) |
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298 VALUES |
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299 (%s, 'leaf', %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)""", |
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300 (nodeIdentifier, |
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301 config['pubsub#persist_items'], |
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302 config['pubsub#deliver_payloads'], |
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303 config['pubsub#send_last_published_item'], |
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304 config[const.OPT_ACCESS_MODEL], |
| 260 | 305 config[const.OPT_PUBLISH_MODEL], |
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306 config[const.OPT_OVERWRITE_POLICY], |
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307 config[const.OPT_SERIAL_IDS], |
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308 config[const.OPT_CONSISTENT_PUBLISHER], |
| 430 | 309 config[const.OPT_FTS_LANGUAGE], |
| 352 | 310 schema, |
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311 recipient.userhost() if pep else None |
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312 ) |
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313 ) |
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332
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314 except cursor._pool.dbapi.IntegrityError as e: |
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315 if e.pgcode == "23505": |
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316 # unique_violation |
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317 raise error.NodeExists() |
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318 else: |
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319 raise error.InvalidConfigurationOption() |
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320 |
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321 cursor.execute(*withPEP("""SELECT node_id FROM nodes WHERE node=%s""", |
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322 (nodeIdentifier,), pep, recipient)); |
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323 node_id = cursor.fetchone()[0] |
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324 |
|
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325 cursor.execute("""SELECT 1 as bool from entities where jid=%s""", |
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227
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326 (owner,)) |
| 107 | 327 |
| 328 if not cursor.fetchone(): | |
|
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329 # XXX: we can NOT rely on the previous query! Commit is needed now because |
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330 # if the entry exists the next query will leave the database in a corrupted |
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331 # state: the solution is to rollback. I tried with other methods like |
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332 # "WHERE NOT EXISTS" but none of them worked, so the following solution |
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333 # looks like the sole - unless you have auto-commit on. More info |
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334 # about this issue: http://cssmay.com/question/tag/tag-psycopg2 |
|
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335 cursor.connection.commit() |
|
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336 try: |
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337 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", |
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338 (owner,)) |
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339 except psycopg2.IntegrityError as e: |
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340 cursor.connection.rollback() |
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341 logging.warning("during node creation: %s" % e.message) |
| 107 | 342 |
| 343 cursor.execute("""INSERT INTO affiliations | |
| 344 (node_id, entity_id, affiliation) | |
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345 SELECT %s, entity_id, 'owner' FROM |
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346 (SELECT entity_id FROM entities |
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347 WHERE jid=%s) as e""", |
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348 (node_id, owner)) |
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349 |
|
330
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350 if config[const.OPT_ACCESS_MODEL] == const.VAL_AMODEL_PUBLISHER_ROSTER: |
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351 if const.OPT_ROSTER_GROUPS_ALLOWED in config: |
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352 allowed_groups = config[const.OPT_ROSTER_GROUPS_ALLOWED] |
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353 else: |
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354 allowed_groups = [] |
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355 for group in allowed_groups: |
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356 #TODO: check that group are actually in roster |
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357 cursor.execute("""INSERT INTO node_groups_authorized (node_id, groupname) |
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358 VALUES (%s,%s)""" , (node_id, group)) |
|
330
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359 # XXX: affiliations can't be set on during node creation (at least not with XEP-0060 alone) |
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360 # so whitelist affiliations need to be done afterward |
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361 |
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362 # no we may have to do extra things according to config options |
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363 default_conf = self.defaultConfig['leaf'] |
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364 # XXX: trigger works on node creation because OPT_SERIAL_IDS is False in defaultConfig |
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365 # if this value is changed, the _configurationTriggers method should be adapted. |
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366 Node._configurationTriggers(cursor, node_id, default_conf, config) |
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367 |
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368 def deleteNodeByDbId(self, db_id): |
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369 """Delete a node using directly its database id""" |
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370 return self.dbpool.runInteraction(self._deleteNodeByDbId, db_id) |
| 107 | 371 |
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372 def _deleteNodeByDbId(self, cursor, db_id): |
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373 cursor.execute("""DELETE FROM nodes WHERE node_id=%s""", |
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374 (db_id,)) |
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375 |
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376 if cursor.rowcount != 1: |
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377 raise error.NodeNotFound() |
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378 |
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379 def deleteNode(self, nodeIdentifier, pep, recipient=None): |
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380 return self.dbpool.runInteraction(self._deleteNode, nodeIdentifier, pep, recipient) |
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381 |
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382 def _deleteNode(self, cursor, nodeIdentifier, pep, recipient): |
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383 cursor.execute(*withPEP("""DELETE FROM nodes WHERE node=%s""", |
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384 (nodeIdentifier,), pep, recipient)) |
| 107 | 385 |
| 386 if cursor.rowcount != 1: | |
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387 raise error.NodeNotFound() |
| 107 | 388 |
| 331 | 389 def getAffiliations(self, entity, nodeIdentifier, pep, recipient=None): |
| 390 return self.dbpool.runInteraction(self._getAffiliations, entity, nodeIdentifier, pep, recipient) | |
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391 |
| 331 | 392 def _getAffiliations(self, cursor, entity, nodeIdentifier, pep, recipient=None): |
| 393 query = ["""SELECT node, affiliation FROM entities | |
| 394 NATURAL JOIN affiliations | |
| 395 NATURAL JOIN nodes | |
| 396 WHERE jid=%s"""] | |
| 397 args = [entity.userhost()] | |
| 398 | |
| 399 if nodeIdentifier is not None: | |
| 400 query.append("AND node=%s") | |
| 401 args.append(nodeIdentifier) | |
| 402 | |
| 403 cursor.execute(*withPEP(' '.join(query), args, pep, recipient)) | |
| 404 rows = cursor.fetchall() | |
| 405 return [tuple(r) for r in rows] | |
| 107 | 406 |
|
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407 def getSubscriptions(self, entity, nodeIdentifier=None, pep=False, recipient=None): |
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408 """retrieve subscriptions of an entity |
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409 |
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410 @param entity(jid.JID): entity to check |
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411 @param nodeIdentifier(unicode, None): node identifier |
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412 None to retrieve all subscriptions |
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413 @param pep: True if we are in PEP mode |
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414 @param recipient: jid of the recipient |
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415 """ |
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416 |
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417 def toSubscriptions(rows): |
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418 subscriptions = [] |
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419 for row in rows: |
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420 subscriber = jid.internJID('%s/%s' % (row.jid, |
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421 row.resource)) |
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422 subscription = Subscription(row.node, subscriber, row.state) |
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423 subscriptions.append(subscription) |
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424 return subscriptions |
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425 |
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426 query = ["""SELECT node, |
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427 jid, |
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428 resource, |
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429 state |
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430 FROM entities |
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431 NATURAL JOIN subscriptions |
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432 NATURAL JOIN nodes |
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433 WHERE jid=%s"""] |
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434 |
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435 args = [entity.userhost()] |
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436 |
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437 if nodeIdentifier is not None: |
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438 query.append("AND node=%s") |
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439 args.append(nodeIdentifier) |
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440 |
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441 d = self.dbpool.runQuery(*withPEP(' '.join(query), args, pep, recipient)) |
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442 d.addCallback(toSubscriptions) |
| 107 | 443 return d |
| 444 | |
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445 def getDefaultConfiguration(self, nodeType): |
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446 return self.defaultConfig[nodeType].copy() |
| 107 | 447 |
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448 def formatLastItems(self, result): |
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449 last_items = [] |
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450 for pep_jid_s, node, data, item_access_model in result: |
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451 pep_jid = jid.JID(pep_jid_s) |
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452 item = generic.stripNamespace(parseXml(data)) |
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453 last_items.append((pep_jid, node, item, item_access_model)) |
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454 return last_items |
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455 |
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456 def getLastItems(self, entities, nodes, node_accesses, item_accesses, pep): |
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457 """get last item for several nodes and entities in a single request""" |
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458 if not entities or not nodes or not node_accesses or not item_accesses: |
|
429
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459 raise BadRequest(text="entities, nodes and accesses must not be empty") |
|
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460 if node_accesses != ('open',) or item_accesses != ('open',): |
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461 raise NotImplementedError('only "open" access model is handled for now') |
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462 if not pep: |
| 414 | 463 raise NotImplementedError("getLastItems is only implemented for PEP at the moment") |
|
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464 d = self.dbpool.runQuery("""SELECT DISTINCT ON (node_id) pep, node, data::text, items.access_model |
|
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465 FROM items |
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466 NATURAL JOIN nodes |
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467 WHERE nodes.pep IN %s |
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468 AND node IN %s |
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469 AND nodes.access_model in %s |
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470 AND items.access_model in %s |
|
454
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471 ORDER BY node_id DESC, items.updated DESC, items.item_id DESC""", |
|
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472 (tuple([e.userhost() for e in entities]), |
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473 nodes, |
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474 node_accesses, |
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475 item_accesses)) |
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476 d.addCallback(self.formatLastItems) |
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477 return d |
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478 |
|
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479 |
| 414 | 480 @implementer(iidavoll.INode) |
| 107 | 481 class Node: |
| 482 | |
| 483 | |
| 352 | 484 def __init__(self, nodeDbId, nodeIdentifier, config, schema): |
|
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485 self.nodeDbId = nodeDbId |
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486 self.nodeIdentifier = nodeIdentifier |
| 107 | 487 self._config = config |
| 352 | 488 self._schema = schema |
| 107 | 489 |
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490 def _checkNodeExists(self, cursor): |
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491 cursor.execute("""SELECT 1 as exist FROM nodes WHERE node_id=%s""", |
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492 (self.nodeDbId,)) |
|
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493 if not cursor.fetchone(): |
|
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494 raise error.NodeNotFound() |
|
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495 |
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496 def getType(self): |
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497 return self.nodeType |
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498 |
|
330
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499 def getOwners(self): |
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500 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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501 d.addCallback(lambda rows: [jid.JID(r[0]) for r in rows]) |
|
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502 return d |
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503 |
|
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504 def getConfiguration(self): |
| 107 | 505 return self._config |
| 506 | |
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507 def getNextId(self): |
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508 """return XMPP item id usable for next item to publish |
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509 |
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510 the return value will be next int if serila_ids is set, |
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511 else an UUID will be returned |
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512 """ |
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513 if self._config[const.OPT_SERIAL_IDS]: |
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514 d = self.dbpool.runQuery("SELECT nextval('{seq_name}')".format( |
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515 seq_name = ITEMS_SEQ_NAME.format(node_id=self.nodeDbId))) |
| 414 | 516 d.addCallback(lambda rows: str(rows[0][0])) |
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517 return d |
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518 else: |
| 414 | 519 return defer.succeed(str(uuid.uuid4())) |
|
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520 |
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521 @staticmethod |
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522 def _configurationTriggers(cursor, node_id, old_config, new_config): |
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523 """trigger database relative actions needed when a config is changed |
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524 |
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525 @param cursor(): current db cursor |
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526 @param node_id(unicode): database ID of the node |
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527 @param old_config(dict): config of the node before the change |
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528 @param new_config(dict): new options that will be changed |
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529 """ |
| 430 | 530 if const.OPT_SERIAL_IDS not in new_config: |
| 531 return | |
|
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532 serial_ids = new_config[const.OPT_SERIAL_IDS] |
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533 if serial_ids != old_config[const.OPT_SERIAL_IDS]: |
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534 # serial_ids option has been modified, |
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535 # we need to handle corresponding sequence |
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536 |
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537 # XXX: we use .format in following queries because values |
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538 # are generated by ourself |
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539 seq_name = ITEMS_SEQ_NAME.format(node_id=node_id) |
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540 if serial_ids: |
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541 # the next query get the max value +1 of all XMPP items ids |
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542 # which are integers, and default to 1 |
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543 cursor.execute(NEXT_ITEM_ID_QUERY.format(node_id=node_id)) |
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544 next_val = cursor.fetchone()[0] |
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545 cursor.execute("DROP SEQUENCE IF EXISTS {seq_name}".format(seq_name = seq_name)) |
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546 cursor.execute("CREATE SEQUENCE {seq_name} START {next_val} OWNED BY nodes.node_id".format( |
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547 seq_name = seq_name, |
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548 next_val = next_val)) |
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549 else: |
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550 cursor.execute("DROP SEQUENCE IF EXISTS {seq_name}".format(seq_name = seq_name)) |
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551 |
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552 def setConfiguration(self, options): |
| 430 | 553 to_delete = [] |
| 554 for option, value in options.items(): | |
| 555 try: | |
| 556 if self._config[option] == value: | |
| 557 to_delete.append(option) | |
| 558 except KeyError: | |
| 559 raise BadRequest(text=f"Invalid option: {option!r}") | |
|
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560 |
| 430 | 561 for option in to_delete: |
|
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562 del options.fields[option] |
|
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563 |
|
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564 if not options.fields: |
| 430 | 565 return |
| 566 | |
| 567 if options.get(const.OPT_MAX_ITEMS) == "max": | |
|
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568 # XXX: "max" is default value for config we must convert |
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569 # it to an interger. See backend's _doSetNodeConfiguration comment |
| 430 | 570 options[const.OPT_MAX_ITEMS] = "0" |
|
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571 |
| 430 | 572 if ((const.OPT_FTS_LANGUAGE in options |
| 573 and options[const.OPT_FTS_LANGUAGE] not in self.fts_languages)): | |
| 574 raise BadRequest(text= | |
| 575 f"invalid {const.OPT_FTS_LANGUAGE} value: " | |
| 576 f"{options[const.OPT_FTS_LANGUAGE]!r}" | |
| 577 ) | |
| 578 | |
| 579 | |
| 580 d = self.dbpool.runInteraction(self._setConfiguration, options) | |
| 581 d.addCallback(self._updateCachedConfiguration, options) | |
|
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582 return d |
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583 |
| 430 | 584 def _setConfiguration(self, cursor, options): |
| 585 self._configurationTriggers(cursor, self.nodeDbId, self._config, options) | |
| 586 # options names all follow the scheme "pubsub#{col_name}" | |
| 587 col_names = (o[7:] for o in options) | |
| 588 values = ','.join(f"{name}=%s" for name in col_names) | |
| 589 cursor.execute(f"UPDATE nodes SET {values} WHERE node_id=%s", | |
| 590 (*options.values(), self.nodeDbId)) | |
| 591 if cursor.rowcount == 0: | |
| 592 raise error.NodeNotFound() | |
| 107 | 593 |
| 430 | 594 def _updateCachedConfiguration(self, __, options): |
| 595 self._config.update(options) | |
|
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596 |
| 352 | 597 def getSchema(self): |
| 598 return self._schema | |
| 599 | |
| 600 def setSchema(self, schema): | |
| 601 d = self.dbpool.runInteraction(self._setSchema, schema) | |
| 602 d.addCallback(self._setCachedSchema, schema) | |
| 603 return d | |
| 604 | |
| 605 def _setSchema(self, cursor, schema): | |
| 606 self._checkNodeExists(cursor) | |
| 607 cursor.execute("""UPDATE nodes SET schema=%s | |
| 608 WHERE node_id=%s""", | |
| 609 (schema.toXml() if schema else None, | |
| 610 self.nodeDbId)) | |
| 611 | |
| 430 | 612 def _setCachedSchema(self, __, schema): |
| 352 | 613 self._schema = schema |
| 614 | |
|
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615 def getMetaData(self): |
| 107 | 616 config = copy.copy(self._config) |
|
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617 config["pubsub#node_type"] = self.nodeType |
| 107 | 618 return config |
| 619 | |
|
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620 def getAffiliation(self, entity): |
|
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621 return self.dbpool.runInteraction(self._getAffiliation, entity) |
| 107 | 622 |
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623 def _getAffiliation(self, cursor, entity): |
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624 self._checkNodeExists(cursor) |
| 107 | 625 cursor.execute("""SELECT affiliation FROM affiliations |
|
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626 NATURAL JOIN nodes |
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627 NATURAL JOIN entities |
|
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628 WHERE node_id=%s AND jid=%s""", |
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629 (self.nodeDbId, |
|
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630 entity.userhost())) |
| 107 | 631 |
| 632 try: | |
| 633 return cursor.fetchone()[0] | |
| 634 except TypeError: | |
| 635 return None | |
| 636 | |
|
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637 def getAccessModel(self): |
|
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638 return self._config[const.OPT_ACCESS_MODEL] |
|
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639 |
|
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640 def getSubscription(self, subscriber): |
|
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641 return self.dbpool.runInteraction(self._getSubscription, subscriber) |
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642 |
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643 def _getSubscription(self, cursor, subscriber): |
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644 self._checkNodeExists(cursor) |
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645 |
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646 userhost = subscriber.userhost() |
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647 resource = subscriber.resource or '' |
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648 |
|
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649 cursor.execute("""SELECT state FROM subscriptions |
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650 NATURAL JOIN nodes |
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651 NATURAL JOIN entities |
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652 WHERE node_id=%s AND jid=%s AND resource=%s""", |
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653 (self.nodeDbId, |
|
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654 userhost, |
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655 resource)) |
|
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656 |
|
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657 row = cursor.fetchone() |
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658 if not row: |
|
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659 return None |
|
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660 else: |
|
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661 return Subscription(self.nodeIdentifier, subscriber, row[0]) |
|
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662 |
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663 def getSubscriptions(self, state=None): |
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664 return self.dbpool.runInteraction(self._getSubscriptions, state) |
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665 |
|
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666 def _getSubscriptions(self, cursor, state): |
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667 self._checkNodeExists(cursor) |
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668 |
|
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669 query = """SELECT node, jid, resource, state, |
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670 subscription_type, subscription_depth |
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671 FROM subscriptions |
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672 NATURAL JOIN nodes |
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673 NATURAL JOIN entities |
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674 WHERE node_id=%s""" |
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675 values = [self.nodeDbId] |
|
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676 |
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677 if state: |
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678 query += " AND state=%s" |
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679 values.append(state) |
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680 |
|
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681 cursor.execute(query, values) |
|
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682 rows = cursor.fetchall() |
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683 |
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684 subscriptions = [] |
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685 for row in rows: |
| 414 | 686 subscriber = jid.JID('%s/%s' % (row.jid, row.resource)) |
|
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687 |
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688 options = {} |
|
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689 if row.subscription_type: |
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690 options['pubsub#subscription_type'] = row.subscription_type; |
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691 if row.subscription_depth: |
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692 options['pubsub#subscription_depth'] = row.subscription_depth; |
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693 |
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694 subscriptions.append(Subscription(row.node, subscriber, |
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695 row.state, options)) |
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696 |
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697 return subscriptions |
| 107 | 698 |
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699 def addSubscription(self, subscriber, state, config): |
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700 return self.dbpool.runInteraction(self._addSubscription, subscriber, |
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701 state, config) |
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702 |
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703 def _addSubscription(self, cursor, subscriber, state, config): |
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704 self._checkNodeExists(cursor) |
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705 |
| 107 | 706 userhost = subscriber.userhost() |
| 707 resource = subscriber.resource or '' | |
| 708 | |
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709 subscription_type = config.get('pubsub#subscription_type') |
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710 subscription_depth = config.get('pubsub#subscription_depth') |
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711 |
| 107 | 712 try: |
| 713 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", | |
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714 (userhost,)) |
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715 except cursor._pool.dbapi.IntegrityError: |
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716 cursor.connection.rollback() |
| 107 | 717 |
| 718 try: | |
| 719 cursor.execute("""INSERT INTO subscriptions | |
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720 (node_id, entity_id, resource, state, |
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721 subscription_type, subscription_depth) |
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722 SELECT %s, entity_id, %s, %s, %s, %s FROM |
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723 (SELECT entity_id FROM entities |
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724 WHERE jid=%s) AS ent_id""", |
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725 (self.nodeDbId, |
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726 resource, |
|
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727 state, |
|
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728 subscription_type, |
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729 subscription_depth, |
|
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730 userhost)) |
|
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731 except cursor._pool.dbapi.IntegrityError: |
|
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732 raise error.SubscriptionExists() |
|
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733 |
|
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734 def removeSubscription(self, subscriber): |
|
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735 return self.dbpool.runInteraction(self._removeSubscription, |
|
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736 subscriber) |
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737 |
|
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738 def _removeSubscription(self, cursor, subscriber): |
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739 self._checkNodeExists(cursor) |
|
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740 |
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741 userhost = subscriber.userhost() |
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742 resource = subscriber.resource or '' |
| 107 | 743 |
|
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744 cursor.execute("""DELETE FROM subscriptions WHERE |
|
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745 node_id=%s AND |
|
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746 entity_id=(SELECT entity_id FROM entities |
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747 WHERE jid=%s) AND |
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748 resource=%s""", |
|
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749 (self.nodeDbId, |
|
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|
750 userhost, |
|
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|
751 resource)) |
|
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752 if cursor.rowcount != 1: |
|
171
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753 raise error.NotSubscribed() |
| 107 | 754 |
|
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755 return None |
| 107 | 756 |
|
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757 def setSubscriptions(self, subscriptions): |
|
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758 return self.dbpool.runInteraction(self._setSubscriptions, subscriptions) |
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759 |
|
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760 def _setSubscriptions(self, cursor, subscriptions): |
|
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761 self._checkNodeExists(cursor) |
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762 |
|
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763 entities = self.getOrCreateEntities(cursor, [s.subscriber for s in subscriptions]) |
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764 entities_map = {jid.JID(e.jid): e for e in entities} |
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765 |
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766 # then we construct values for subscriptions update according to entity_id we just got |
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767 placeholders = ','.join(len(subscriptions) * ["%s"]) |
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768 values = [] |
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769 for subscription in subscriptions: |
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|
770 entity_id = entities_map[subscription.subscriber].entity_id |
| 414 | 771 resource = subscription.subscriber.resource or '' |
|
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772 values.append((self.nodeDbId, entity_id, resource, subscription.state, None, None)) |
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773 # 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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774 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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775 |
|
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776 def isSubscribed(self, entity): |
|
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777 return self.dbpool.runInteraction(self._isSubscribed, entity) |
|
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|
778 |
|
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779 def _isSubscribed(self, cursor, entity): |
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780 self._checkNodeExists(cursor) |
|
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781 |
|
276
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782 cursor.execute("""SELECT 1 as bool FROM entities |
|
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783 NATURAL JOIN subscriptions |
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784 NATURAL JOIN nodes |
|
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785 WHERE entities.jid=%s |
|
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786 AND node_id=%s AND state='subscribed'""", |
|
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787 (entity.userhost(), |
|
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788 self.nodeDbId)) |
|
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789 |
|
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|
790 return cursor.fetchone() is not None |
| 107 | 791 |
|
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792 def getAffiliations(self): |
|
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793 return self.dbpool.runInteraction(self._getAffiliations) |
|
145
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|
794 |
|
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795 def _getAffiliations(self, cursor): |
|
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796 self._checkNodeExists(cursor) |
|
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797 |
|
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|
798 cursor.execute("""SELECT jid, affiliation FROM nodes |
|
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799 NATURAL JOIN affiliations |
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800 NATURAL JOIN entities |
|
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801 WHERE node_id=%s""", |
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802 (self.nodeDbId,)) |
|
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|
803 result = cursor.fetchall() |
|
180
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|
804 |
|
330
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|
805 return {jid.internJID(r[0]): r[1] for r in result} |
|
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|
806 |
| 331 | 807 def getOrCreateEntities(self, cursor, entities_jids): |
| 808 """Get entity_id from entities in entities table | |
| 809 | |
| 810 Entities will be inserted it they don't exist | |
| 811 @param entities_jid(list[jid.JID]): entities to get or create | |
|
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|
812 @return list[record(entity_id,jid)]]: list of entity_id and jid (as plain string) |
| 331 | 813 both existing and inserted entities are returned |
| 814 """ | |
| 815 # cf. http://stackoverflow.com/a/35265559 | |
| 816 placeholders = ','.join(len(entities_jids) * ["(%s)"]) | |
| 817 query = ( | |
| 818 """ | |
| 819 WITH | |
| 820 jid_values (jid) AS ( | |
| 821 VALUES {placeholders} | |
| 822 ), | |
| 823 inserted (entity_id, jid) AS ( | |
| 824 INSERT INTO entities (jid) | |
| 825 SELECT jid | |
| 826 FROM jid_values | |
| 827 ON CONFLICT DO NOTHING | |
| 828 RETURNING entity_id, jid | |
| 829 ) | |
| 830 SELECT e.entity_id, e.jid | |
| 831 FROM entities e JOIN jid_values jv ON jv.jid = e.jid | |
| 832 UNION ALL | |
| 833 SELECT entity_id, jid | |
| 834 FROM inserted""".format(placeholders=placeholders)) | |
| 835 cursor.execute(query, [j.userhost() for j in entities_jids]) | |
| 836 return cursor.fetchall() | |
| 837 | |
| 838 def setAffiliations(self, affiliations): | |
| 839 return self.dbpool.runInteraction(self._setAffiliations, affiliations) | |
| 840 | |
| 841 def _setAffiliations(self, cursor, affiliations): | |
| 842 self._checkNodeExists(cursor) | |
| 843 | |
| 844 entities = self.getOrCreateEntities(cursor, affiliations) | |
| 845 | |
| 846 # then we construct values for affiliations update according to entity_id we just got | |
| 847 placeholders = ','.join(len(affiliations) * ["(%s,%s,%s)"]) | |
| 848 values = [] | |
| 414 | 849 for e in entities: |
| 850 values.extend((e.entity_id, affiliations[jid.JID(e.jid)], self.nodeDbId)) | |
| 331 | 851 |
| 852 # we use upsert so new values are inserted and existing one updated. This feature is only available for PostgreSQL >= 9.5 | |
| 853 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) | |
| 854 | |
| 855 def deleteAffiliations(self, entities): | |
| 856 return self.dbpool.runInteraction(self._deleteAffiliations, entities) | |
| 857 | |
| 858 def _deleteAffiliations(self, cursor, entities): | |
| 859 """delete affiliations and subscriptions for this entity""" | |
| 860 self._checkNodeExists(cursor) | |
| 861 placeholders = ','.join(len(entities) * ["%s"]) | |
| 862 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]) | |
| 863 | |
| 864 rows = cursor.fetchall() | |
| 865 placeholders = ','.join(len(rows) * ["%s"]) | |
| 866 cursor.execute("DELETE FROM subscriptions WHERE node_id=%s AND entity_id in (" + placeholders + ")", [self.nodeDbId] + [r[0] for r in rows]) | |
| 867 | |
| 868 def getAuthorizedGroups(self): | |
| 869 return self.dbpool.runInteraction(self._getNodeGroups) | |
| 870 | |
| 871 def _getAuthorizedGroups(self, cursor): | |
| 872 cursor.execute("SELECT groupname FROM node_groups_authorized NATURAL JOIN nodes WHERE node=%s", | |
| 873 (self.nodeDbId,)) | |
| 874 rows = cursor.fetchall() | |
| 875 return [row[0] for row in rows] | |
|
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876 |
|
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877 |
| 414 | 878 @implementer(iidavoll.ILeafNode) |
|
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879 class LeafNode(Node): |
|
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|
880 |
| 107 | 881 |
|
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882 nodeType = 'leaf' |
| 107 | 883 |
| 451 | 884 def getOrderBy(self, ext_data, direction='ASC'): |
|
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885 """Return ORDER BY clause corresponding to Order By key in ext_data |
|
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886 |
|
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|
887 @param ext_data (dict): extra data as used in getItems |
|
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|
888 @param direction (unicode): ORDER BY direction (ASC or DESC) |
|
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|
889 @return (unicode): ORDER BY clause to use |
|
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890 """ |
|
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891 keys = ext_data.get('order_by') |
|
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892 if not keys: |
|
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|
893 return f"ORDER BY updated {direction}, item_id {direction}" |
|
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|
894 cols_statmnt = [] |
|
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|
895 for key in keys: |
|
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|
896 if key == 'creation': |
|
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|
897 column = 'item_id' # could work with items.created too |
|
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|
898 elif key == 'modification': |
|
378
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|
899 column = 'updated' |
|
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|
900 else: |
| 414 | 901 log.msg("WARNING: Unknown order by key: {key}".format(key=key)) |
|
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|
902 column = 'updated' |
|
454
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|
903 cols_statmnt.append(f"{column} {direction}") |
|
375
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|
904 |
|
454
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|
905 if len(cols_statmnt) == 1 and column != "item_id": |
|
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|
906 cols_statmnt.append(f"item_id {direction}") |
| 414 | 907 return "ORDER BY " + ",".join([col for col in cols_statmnt]) |
|
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|
908 |
|
393
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diff
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|
909 @defer.inlineCallbacks |
|
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diff
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|
910 def storeItems(self, items_data, publisher): |
|
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diff
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|
911 # XXX: runInteraction doesn't seem to work when there are several "insert" |
|
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|
912 # or "update". |
|
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|
913 # Before the unpacking was done in _storeItems, but this was causing trouble |
|
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diff
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|
914 # in case of multiple items_data. So this has now be moved here. |
|
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|
915 # FIXME: investigate the issue with runInteraction |
|
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|
916 for item_data in items_data: |
|
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diff
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|
917 yield self.dbpool.runInteraction(self._storeItems, item_data, publisher) |
|
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|
918 |
|
393
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|
919 def _storeItems(self, cursor, item_data, publisher): |
| 250 | 920 self._checkNodeExists(cursor) |
|
393
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diff
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|
921 self._storeItem(cursor, item_data, publisher) |
| 244 | 922 |
|
294
df1edebb0466
PEP implementation, draft (huge patch sorry):
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283
diff
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|
923 def _storeItem(self, cursor, item_data, publisher): |
|
367
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|
924 # first try to insert the item |
|
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|
925 # - if it fails (conflict), and the item is new and we have serial_ids options, |
|
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|
926 # current id will be recomputed using next item id query (note that is not perfect, as |
|
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|
927 # table is not locked and this can fail if two items are added at the same time |
|
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|
928 # but this can only happen with serial_ids and if future ids have been set by a client, |
|
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|
929 # this case should be rare enough to consider this situation acceptable) |
|
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|
930 # - if item insertion fail and the item is not new, we do an update |
|
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|
931 # - in other cases, exception is raised |
|
301
05c875a13a62
categories are now stored in a dedicated table if item contain an atom entry:
Goffi <goffi@goffi.org>
parents:
297
diff
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|
932 item, access_model, item_config = item_data.item, item_data.access_model, item_data.config |
|
121
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Ralph Meijer <ralphm@ik.nu>
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|
933 data = item.toXml() |
| 430 | 934 data_fts_cfg = self._config[const.OPT_FTS_LANGUAGE] |
| 935 if data_fts_cfg == const.VAL_FTS_GENERIC: | |
| 936 data_fts_cfg = "simple" | |
|
262
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260
diff
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|
937 |
| 430 | 938 insert_query = ( |
| 939 "INSERT INTO items(node_id, item, publisher, data, access_model, " | |
| 940 "data_fts_cfg) VALUES (%s, %s, %s, %s, %s, %s) RETURNING item_id" | |
| 941 ) | |
|
367
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|
942 insert_data = [self.nodeDbId, |
|
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|
943 item["id"], |
|
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|
944 publisher.full(), |
|
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|
945 data, |
|
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|
946 access_model, |
| 430 | 947 data_fts_cfg, |
| 948 ] | |
|
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|
949 |
|
367
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|
950 try: |
|
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|
951 cursor.execute(insert_query, insert_data) |
|
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|
952 except cursor._pool.dbapi.IntegrityError as e: |
|
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|
953 if e.pgcode != "23505": |
|
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|
954 # we only handle unique_violation, every other exception must be raised |
|
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|
955 raise e |
|
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|
956 cursor.connection.rollback() |
|
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|
957 # the item already exist |
|
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|
958 if item_data.new: |
|
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|
959 # the item is new |
|
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|
960 if self._config[const.OPT_SERIAL_IDS]: |
|
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|
961 # this can happen with serial_ids, if a item has been stored |
|
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|
962 # with a future id (generated by XMPP client) |
|
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|
963 cursor.execute(NEXT_ITEM_ID_QUERY.format(node_id=self.nodeDbId)) |
|
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|
964 next_id = cursor.fetchone()[0] |
|
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|
965 # we update the sequence, so we can skip conflicting ids |
| 414 | 966 cursor.execute("SELECT setval('{seq_name}', %s)".format( |
|
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|
967 seq_name = ITEMS_SEQ_NAME.format(node_id=self.nodeDbId)), [next_id]) |
|
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|
968 # and now we can retry the query with the new id |
| 414 | 969 item['id'] = insert_data[1] = str(next_id) |
|
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|
970 # item saved in DB must also be updated with the new id |
|
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|
971 insert_data[3] = item.toXml() |
|
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|
972 cursor.execute(insert_query, insert_data) |
|
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|
973 else: |
|
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|
974 # but if we have not serial_ids, we have a real problem |
|
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|
975 raise e |
|
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|
976 else: |
|
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|
977 # this is an update |
|
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|
978 cursor.execute("""UPDATE items SET updated=now(), publisher=%s, data=%s |
| 430 | 979 WHERE node_id=%s AND items.item=%s |
|
367
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|
980 RETURNING item_id""", |
|
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|
981 (publisher.full(), |
|
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|
982 data, |
|
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|
983 self.nodeDbId, |
|
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984 item["id"])) |
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985 if cursor.rowcount != 1: |
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986 raise exceptions.InternalError("item has not been updated correctly") |
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987 item_id = cursor.fetchone()[0]; |
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988 self._storeCategories(cursor, item_id, item_data.categories, update=True) |
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989 return |
|
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990 |
|
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991 item_id = cursor.fetchone()[0]; |
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992 self._storeCategories(cursor, item_id, item_data.categories) |
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993 |
|
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994 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
| 250 | 995 if const.OPT_ROSTER_GROUPS_ALLOWED in item_config: |
| 422 | 996 # XXX: needed to force list if there is only one value |
| 997 item_config.fields[const.OPT_ROSTER_GROUPS_ALLOWED].fieldType='list-multi' | |
| 250 | 998 allowed_groups = item_config[const.OPT_ROSTER_GROUPS_ALLOWED] |
|
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999 else: |
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1000 allowed_groups = [] |
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1001 for group in allowed_groups: |
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1002 #TODO: check that group are actually in roster |
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1003 cursor.execute("""INSERT INTO item_groups_authorized (item_id, groupname) |
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1004 VALUES (%s,%s)""" , (item_id, group)) |
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1005 # TODO: whitelist access model |
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1006 |
| 422 | 1007 max_items = self._config.get(const.OPT_MAX_ITEMS, 'max') |
| 1008 | |
| 1009 if max_items != 'max': | |
| 1010 try: | |
| 1011 max_items = int(self._config[const.OPT_MAX_ITEMS]) | |
| 1012 except ValueError: | |
| 1013 log.err(f"Invalid max_items value: {max_items!r}") | |
| 1014 else: | |
| 1015 if max_items > 0: | |
| 1016 # we delete all items above the requested max | |
| 1017 cursor.execute( | |
| 1018 "DELETE FROM items WHERE node_id=%s and item_id in (SELECT " | |
| 1019 "item_id FROM items WHERE node_id=%s ORDER BY items.updated " | |
| 1020 "DESC, items.item_id DESC OFFSET %s)" , | |
| 1021 (self.nodeDbId, self.nodeDbId, max_items) | |
| 1022 ) | |
| 1023 | |
| 1024 | |
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1025 def _storeCategories(self, cursor, item_id, categories, update=False): |
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1026 # TODO: handle canonical form |
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1027 if update: |
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1028 cursor.execute("""DELETE FROM item_categories |
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1029 WHERE item_id=%s""", (item_id,)) |
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1030 |
|
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1031 # we use a set to avoid duplicates |
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1032 for category in set(categories): |
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1033 cursor.execute("""INSERT INTO item_categories (item_id, category) |
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1034 VALUES (%s, %s)""", (item_id, category)) |
| 107 | 1035 |
|
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1036 def removeItems(self, itemIdentifiers): |
|
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1037 return self.dbpool.runInteraction(self._removeItems, itemIdentifiers) |
|
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1038 |
|
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1039 def _removeItems(self, cursor, itemIdentifiers): |
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1040 self._checkNodeExists(cursor) |
|
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1041 |
|
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1042 deleted = [] |
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1043 |
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1044 for itemIdentifier in itemIdentifiers: |
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1045 cursor.execute("""DELETE FROM items WHERE |
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1046 node_id=%s AND |
|
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1047 item=%s""", |
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1048 (self.nodeDbId, |
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1049 itemIdentifier)) |
|
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1050 |
|
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1051 if cursor.rowcount: |
|
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1052 deleted.append(itemIdentifier) |
|
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1053 |
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1054 return deleted |
| 107 | 1055 |
| 278 | 1056 def getItems(self, authorized_groups, unrestricted, maxItems=None, ext_data=None): |
|
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1057 """ Get all authorised items |
| 346 | 1058 |
|
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1059 @param authorized_groups: we want to get items that these groups can access |
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1060 @param unrestricted: if true, don't check permissions (i.e.: get all items) |
| 318 | 1061 @param maxItems: nb of items we want to get |
| 1062 @param ext_data: options for extra features like RSM and MAM | |
| 278 | 1063 |
|
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1064 @return: list of container.ItemData |
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1065 if unrestricted is False, access_model and config will be None |
|
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1066 """ |
| 278 | 1067 if ext_data is None: |
| 1068 ext_data = {} | |
| 347 | 1069 return self.dbpool.runInteraction(self._getItems, authorized_groups, unrestricted, maxItems, ext_data, ids_only=False) |
|
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1070 |
| 346 | 1071 def getItemsIds(self, authorized_groups, unrestricted, maxItems=None, ext_data=None): |
| 1072 """ Get all authorised items ids | |
| 1073 | |
| 1074 @param authorized_groups: we want to get items that these groups can access | |
| 1075 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1076 @param maxItems: nb of items we want to get | |
| 1077 @param ext_data: options for extra features like RSM and MAM | |
| 1078 | |
| 1079 @return list(unicode): list of ids | |
| 1080 """ | |
| 1081 if ext_data is None: | |
| 1082 ext_data = {} | |
| 1083 return self.dbpool.runInteraction(self._getItems, authorized_groups, unrestricted, maxItems, ext_data, ids_only=True) | |
| 1084 | |
| 318 | 1085 def _appendSourcesAndFilters(self, query, args, authorized_groups, unrestricted, ext_data): |
| 1086 """append sources and filters to sql query requesting items and return ORDER BY | |
| 278 | 1087 |
| 318 | 1088 arguments query, args, authorized_groups, unrestricted and ext_data are the same as for |
| 1089 _getItems | |
| 1090 """ | |
| 1091 # SOURCES | |
|
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1092 query.append("FROM items") |
| 323 | 1093 |
|
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1094 if unrestricted: |
| 323 | 1095 query_filters = ["WHERE node_id=%s"] |
| 318 | 1096 args.append(self.nodeDbId) |
|
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1097 else: |
| 323 | 1098 query.append("LEFT JOIN item_groups_authorized USING (item_id)") |
| 318 | 1099 args.append(self.nodeDbId) |
| 1100 if authorized_groups: | |
| 1101 get_groups = " or (items.access_model='roster' and groupname in %s)" | |
| 1102 args.append(authorized_groups) | |
| 1103 else: | |
| 1104 get_groups = "" | |
| 278 | 1105 |
| 323 | 1106 query_filters = ["WHERE node_id=%s AND (items.access_model='open'" + get_groups + ")"] |
|
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1107 |
| 318 | 1108 # FILTERS |
|
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1109 if 'filters' in ext_data: # MAM filters |
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1110 for filter_ in ext_data['filters']: |
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1111 if filter_.var == 'start': |
|
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1112 query_filters.append("AND created>=%s") |
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1113 args.append(filter_.value) |
| 323 | 1114 elif filter_.var == 'end': |
|
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1115 query_filters.append("AND created<=%s") |
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1116 args.append(filter_.value) |
| 323 | 1117 elif filter_.var == 'with': |
|
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1118 jid_s = filter_.value |
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1119 if '/' in jid_s: |
| 323 | 1120 query_filters.append("AND publisher=%s") |
|
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1121 args.append(filter_.value) |
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1122 else: |
| 323 | 1123 query_filters.append("AND publisher LIKE %s") |
| 414 | 1124 args.append("{}%".format(filter_.value)) |
| 430 | 1125 elif filter_.var == const.MAM_FILTER_FTS: |
| 1126 fts_cfg = self._config[const.OPT_FTS_LANGUAGE] | |
| 1127 if fts_cfg == const.VAL_FTS_GENERIC: | |
| 1128 fts_cfg = "simple" | |
| 1129 query_filters.append( | |
| 1130 "AND data_fts @@ websearch_to_tsquery(%s, %s)" | |
| 1131 ) | |
| 1132 args.append(fts_cfg) | |
| 1133 args.append(filter_.value) | |
| 323 | 1134 elif filter_.var == const.MAM_FILTER_CATEGORY: |
| 1135 query.append("LEFT JOIN item_categories USING (item_id)") | |
| 1136 query_filters.append("AND category=%s") | |
| 1137 args.append(filter_.value) | |
| 1138 else: | |
| 1139 log.msg("WARNING: unknown filter: {}".format(filter_.encode('utf-8'))) | |
| 1140 | |
| 1141 query.extend(query_filters) | |
|
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1142 |
| 451 | 1143 return self.getOrderBy(ext_data, direction="ASC") |
| 318 | 1144 |
| 346 | 1145 def _getItems(self, cursor, authorized_groups, unrestricted, maxItems, ext_data, ids_only): |
| 318 | 1146 self._checkNodeExists(cursor) |
| 1147 | |
| 1148 if maxItems == 0: | |
| 1149 return [] | |
| 1150 | |
| 1151 args = [] | |
| 1152 | |
| 1153 # SELECT | |
| 346 | 1154 if ids_only: |
| 1155 query = ["SELECT item"] | |
| 1156 else: | |
|
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1157 query = ["SELECT data::text,items.access_model,item_id,created,updated"] |
| 318 | 1158 |
| 1159 query_order = self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 278 | 1160 |
| 1161 if 'rsm' in ext_data: | |
| 1162 rsm = ext_data['rsm'] | |
| 1163 maxItems = rsm.max | |
| 1164 if rsm.index is not None: | |
|
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1165 # We need to know the item_id of corresponding to the index (offset) of the current query |
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1166 # so we execute the query to look for the item_id |
| 318 | 1167 tmp_query = query[:] |
| 1168 tmp_args = args[:] | |
|
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1169 tmp_query[0] = "SELECT item_id" |
| 318 | 1170 tmp_query.append("{} LIMIT 1 OFFSET %s".format(query_order)) |
| 1171 tmp_args.append(rsm.index) | |
| 1172 cursor.execute(' '.join(query), args) | |
| 1173 # FIXME: bad index is not managed yet | |
|
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1174 item_id = cursor.fetchall()[0][0] |
| 318 | 1175 |
|
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1176 # now that we have the id, we can use it |
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1177 query.append("AND item_id<=%s") |
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1178 args.append(item_id) |
| 278 | 1179 elif rsm.before is not None: |
| 1180 if rsm.before != '': | |
|
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1181 query.insert(0,"SELECT * from (") |
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1182 query[1] += f",row_number() OVER ({query_order}) as row_number" |
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1183 query.append(f"{query_order}) as x") |
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1184 query.append( |
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1185 f"WHERE row_number<(SELECT row_number FROM (SELECT row_number() OVER ({query_order}) as row_number,item FROM items WHERE node_id=%s) as row_num_sub WHERE item=%s)" |
|
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1186 ) |
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1187 args.extend((self.nodeDbId, rsm.before)) |
| 451 | 1188 # we need to reverse order in a first query to get the right |
| 1189 # items | |
| 1190 query.insert(0,"SELECT * from (") | |
| 1191 query.append(self.getOrderBy(ext_data, direction='DESC')) | |
| 1192 query.append("LIMIT %s) as x") | |
| 1193 if maxItems is None: | |
| 1194 # we default to 10 max when we request last page | |
| 1195 log.msg( | |
| 1196 "WARNING: getting last page with RSM without max, " | |
| 1197 "we default to max=10" | |
| 1198 ) | |
| 1199 args.append(10) | |
| 1200 else: | |
| 318 | 1201 args.append(maxItems) |
| 278 | 1202 elif rsm.after: |
|
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1203 query.insert(0,"SELECT * from (") |
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1204 query[1] += f",row_number() OVER ({query_order}) as row_number" |
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1205 query.append(f"{query_order}) as x") |
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1206 query.append( |
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1207 f"WHERE row_number>(SELECT row_number FROM (SELECT row_number() OVER ({query_order}) as row_number,item FROM items WHERE node_id=%s) as row_num_sub WHERE item=%s)" |
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1208 ) |
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1209 args.extend((self.nodeDbId, rsm.after)) |
| 451 | 1210 else: |
| 1211 rsm = False | |
| 278 | 1212 |
| 318 | 1213 query.append(query_order) |
| 278 | 1214 |
|
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1215 if maxItems is not None: |
| 451 | 1216 if rsm == False: |
| 1217 # if we have legacy maxItems (i.e. not RSM max), we need to | |
| 1218 # reverse order (maxItems get last items, cf. | |
| 1219 # https://xmpp.org/extensions/xep-0060.html#subscriber-retrieve-requestrecent) | |
| 1220 # in a first query to get the right items | |
| 1221 query.insert(0,"SELECT * from (") | |
| 1222 query.insert(len(query)-1, self.getOrderBy(ext_data, direction='DESC')) | |
| 1223 query.insert(len(query)-1, "LIMIT %s) as x") | |
| 1224 args.append(maxItems) | |
| 1225 else: | |
| 1226 query.append("LIMIT %s") | |
| 1227 args.append(maxItems) | |
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1228 |
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1229 cursor.execute(' '.join(query), args) |
|
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1230 |
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1231 result = cursor.fetchall() |
| 346 | 1232 if unrestricted and not ids_only: |
| 318 | 1233 # with unrestricted query, we need to fill the access_list for a roster access items |
|
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1234 ret = [] |
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1235 for item_data in result: |
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1236 item = generic.stripNamespace(parseXml(item_data.data)) |
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1237 access_model = item_data.access_model |
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1238 item_id = item_data.item_id |
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1239 created = item_data.created |
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1240 updated = item_data.updated |
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1241 access_list = {} |
|
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1242 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
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1243 cursor.execute('SELECT groupname FROM item_groups_authorized WHERE item_id=%s', (item_id,)) |
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1244 access_list[const.OPT_ROSTER_GROUPS_ALLOWED] = [r.groupname for r in cursor.fetchall()] |
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1245 |
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1246 ret.append(container.ItemData(item, access_model, access_list, created=created, updated=updated)) |
|
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1247 # TODO: whitelist item access model |
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1248 return ret |
| 318 | 1249 |
| 346 | 1250 if ids_only: |
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1251 return [r.item for r in result] |
| 346 | 1252 else: |
|
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1253 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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1254 return items_data |
| 107 | 1255 |
|
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1256 def getItemsById(self, authorized_groups, unrestricted, itemIdentifiers): |
|
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1257 """Get items which are in the given list |
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1258 |
|
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1259 @param authorized_groups: we want to get items that these groups can access |
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1260 @param unrestricted: if true, don't check permissions |
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1261 @param itemIdentifiers: list of ids of the items we want to get |
|
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1262 @return: list of container.ItemData |
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1263 ItemData.config will contains access_list (managed as a dictionnary with same key as for item_config) |
|
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1264 if unrestricted is False, access_model and config will be None |
|
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1265 """ |
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1266 return self.dbpool.runInteraction(self._getItemsById, authorized_groups, unrestricted, itemIdentifiers) |
|
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1267 |
|
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1268 def _getItemsById(self, cursor, authorized_groups, unrestricted, itemIdentifiers): |
|
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1269 self._checkNodeExists(cursor) |
|
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1270 ret = [] |
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1271 if unrestricted: #we get everything without checking permissions |
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1272 for itemIdentifier in itemIdentifiers: |
|
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1273 cursor.execute("""SELECT data::text,items.access_model,item_id,created,updated FROM nodes |
|
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1274 INNER JOIN items USING (node_id) |
|
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1275 WHERE node_id=%s AND item=%s""", |
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1276 (self.nodeDbId, |
|
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1277 itemIdentifier)) |
|
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1278 result = cursor.fetchone() |
|
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1279 if not result: |
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1280 raise error.ItemNotFound() |
| 107 | 1281 |
|
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1282 item = generic.stripNamespace(parseXml(result[0])) |
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1283 access_model = result[1] |
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1284 item_id = result[2] |
|
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1285 created= result[3] |
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1286 updated= result[4] |
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1287 access_list = {} |
|
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1288 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
|
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1289 cursor.execute('SELECT groupname FROM item_groups_authorized WHERE item_id=%s', (item_id,)) |
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1290 access_list[const.OPT_ROSTER_GROUPS_ALLOWED] = [r[0] for r in cursor.fetchall()] |
|
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1291 #TODO: WHITELIST access_model |
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1292 |
|
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1293 ret.append(container.ItemData(item, access_model, access_list, created=created, updated=updated)) |
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1294 else: #we check permission before returning items |
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1295 for itemIdentifier in itemIdentifiers: |
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1296 args = [self.nodeDbId, itemIdentifier] |
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1297 if authorized_groups: |
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1298 args.append(authorized_groups) |
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1299 cursor.execute("""SELECT data::text, created, updated FROM nodes |
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1300 INNER JOIN items USING (node_id) |
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1301 LEFT JOIN item_groups_authorized USING (item_id) |
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1302 WHERE node_id=%s AND item=%s AND |
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1303 (items.access_model='open' """ + |
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1304 ("or (items.access_model='roster' and groupname in %s)" if authorized_groups else '') + ")", |
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1305 args) |
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1306 |
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1307 result = cursor.fetchone() |
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1308 if result: |
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1309 ret.append(container.ItemData(generic.stripNamespace(parseXml(result[0])), created=result[1], updated=result[2])) |
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1310 |
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1311 return ret |
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1312 |
| 318 | 1313 def getItemsCount(self, authorized_groups, unrestricted, ext_data=None): |
| 1314 """Count expected number of items in a getItems query | |
| 1315 | |
| 1316 @param authorized_groups: we want to get items that these groups can access | |
| 1317 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1318 @param ext_data: options for extra features like RSM and MAM | |
| 1319 """ | |
| 1320 if ext_data is None: | |
| 1321 ext_data = {} | |
| 1322 return self.dbpool.runInteraction(self._getItemsCount, authorized_groups, unrestricted, ext_data) | |
| 1323 | |
| 1324 def _getItemsCount(self, cursor, authorized_groups, unrestricted, ext_data): | |
| 1325 self._checkNodeExists(cursor) | |
| 1326 args = [] | |
| 1327 | |
| 1328 # SELECT | |
| 1329 query = ["SELECT count(1)"] | |
| 1330 | |
| 1331 self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 1332 | |
| 1333 cursor.execute(' '.join(query), args) | |
| 1334 return cursor.fetchall()[0][0] | |
| 1335 | |
| 1336 def getItemsIndex(self, item_id, authorized_groups, unrestricted, ext_data=None): | |
| 1337 """Get expected index of first item in the window of a getItems query | |
| 1338 | |
| 1339 @param item_id: id of the item | |
| 1340 @param authorized_groups: we want to get items that these groups can access | |
| 1341 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1342 @param ext_data: options for extra features like RSM and MAM | |
| 1343 """ | |
| 1344 if ext_data is None: | |
| 1345 ext_data = {} | |
| 1346 return self.dbpool.runInteraction(self._getItemsIndex, item_id, authorized_groups, unrestricted, ext_data) | |
| 1347 | |
| 1348 def _getItemsIndex(self, cursor, item_id, authorized_groups, unrestricted, ext_data): | |
| 1349 self._checkNodeExists(cursor) | |
| 1350 args = [] | |
| 1351 | |
| 1352 # SELECT | |
| 1353 query = [] | |
| 1354 | |
| 1355 query_order = self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 1356 | |
| 1357 query_select = "SELECT row_number from (SELECT row_number() OVER ({}), item".format(query_order) | |
| 1358 query.insert(0, query_select) | |
| 1359 query.append(") as x WHERE item=%s") | |
| 1360 args.append(item_id) | |
| 1361 | |
| 1362 cursor.execute(' '.join(query), args) | |
| 1363 # XXX: row_number start at 1, but we want that index start at 0 | |
|
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1364 try: |
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1365 return cursor.fetchall()[0][0] - 1 |
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1366 except IndexError: |
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1367 raise error.NodeNotFound() |
|
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1368 |
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1369 def getItemsPublishers(self, itemIdentifiers): |
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1370 """Get the publishers for all given identifiers |
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1371 |
|
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1372 @return (dict[unicode, jid.JID]): map of itemIdentifiers to publisher |
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1373 if item is not found, key is skipped in resulting dict |
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1374 """ |
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1375 return self.dbpool.runInteraction(self._getItemsPublishers, itemIdentifiers) |
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1376 |
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1377 def _getItemsPublishers(self, cursor, itemIdentifiers): |
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1378 self._checkNodeExists(cursor) |
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1379 ret = {} |
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1380 for itemIdentifier in itemIdentifiers: |
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1381 cursor.execute("""SELECT publisher FROM items |
|
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1382 WHERE node_id=%s AND item=%s""", |
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1383 (self.nodeDbId, itemIdentifier,)) |
|
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1384 result = cursor.fetchone() |
|
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1385 if result: |
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1386 ret[itemIdentifier] = jid.JID(result[0]) |
|
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1387 return ret |
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1388 |
| 107 | 1389 def purge(self): |
|
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1390 return self.dbpool.runInteraction(self._purge) |
|
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1391 |
|
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1392 def _purge(self, cursor): |
|
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1393 self._checkNodeExists(cursor) |
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1394 |
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1395 cursor.execute("""DELETE FROM items WHERE |
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1396 node_id=%s""", |
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1397 (self.nodeDbId,)) |
|
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1398 |
|
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1399 |
|
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1400 class CollectionNode(Node): |
|
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1401 |
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1402 nodeType = 'collection' |