Mercurial > libervia-pubsub
annotate sat_pubsub/pgsql_storage.py @ 473:dc53c6f020bc v0.4.0
v0.4.0 release
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Tue, 30 Nov 2021 23:15:45 +0100 |
| parents | d993e8b0fd60 |
| children | b544109ab4c4 |
| 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 from datetime import datetime, timezone |
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55 |
| 414 | 56 from zope.interface import implementer |
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57 |
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58 from twisted.internet import reactor |
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59 from twisted.internet import defer |
| 107 | 60 from twisted.words.protocols.jabber import jid |
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61 from twisted.words.xish import domish |
| 323 | 62 from twisted.python import log |
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63 |
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64 from wokkel import generic |
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65 from wokkel.pubsub import Subscription, BadRequest |
| 107 | 66 |
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67 from sat_pubsub import error |
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68 from sat_pubsub import iidavoll |
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69 from sat_pubsub import const |
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70 from sat_pubsub import container |
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71 from sat_pubsub import exceptions |
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72 import uuid |
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73 import psycopg2 |
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74 import psycopg2.extensions |
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75 # we wants psycopg2 to return us unicode, not str |
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76 psycopg2.extensions.register_type(psycopg2.extensions.UNICODE) |
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77 psycopg2.extensions.register_type(psycopg2.extensions.UNICODEARRAY) |
| 244 | 78 |
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79 # parseXml manage str, but we get unicode |
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80 parseXml = lambda unicode_data: generic.parseXml(unicode_data.encode('utf-8')) |
| 414 | 81 ITEMS_SEQ_NAME = 'node_{node_id}_seq' |
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82 PEP_COL_NAME = 'pep' |
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83 CURRENT_VERSION = '9' |
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84 # retrieve the maximum integer item id + 1 |
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85 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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86 |
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87 |
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88 def withPEP(query, values, pep, recipient): |
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89 """Helper method to facilitate PEP management |
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90 |
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91 @param query: SQL query basis |
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92 @param values: current values to replace in query |
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93 @param pep(bool): True if we are in PEP mode |
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94 @param recipient(jid.JID): jid of the recipient |
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95 @return: query + PEP AND check, |
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96 recipient's bare jid is added to value if needed |
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97 """ |
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98 if pep: |
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99 pep_check="AND {}=%s".format(PEP_COL_NAME) |
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100 values=list(values) + [recipient.userhost()] |
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101 else: |
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102 pep_check="AND {} IS NULL".format(PEP_COL_NAME) |
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103 return "{} {}".format(query, pep_check), values |
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104 |
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105 |
| 414 | 106 @implementer(iidavoll.IStorage) |
| 107 | 107 class Storage: |
| 108 | |
| 430 | 109 fts_languages = ['generic'] |
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110 defaultConfig = { |
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111 'leaf': { |
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112 const.OPT_PERSIST_ITEMS: True, |
| 422 | 113 const.OPT_MAX_ITEMS: 'max', |
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114 const.OPT_DELIVER_PAYLOADS: True, |
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115 const.OPT_SEND_LAST_PUBLISHED_ITEM: 'on_sub', |
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116 const.OPT_ACCESS_MODEL: const.VAL_AMODEL_DEFAULT, |
| 260 | 117 const.OPT_PUBLISH_MODEL: const.VAL_PMODEL_DEFAULT, |
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118 const.OPT_OVERWRITE_POLICY: const.VAL_OWPOL_DEFAUT, |
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119 const.OPT_SERIAL_IDS: False, |
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120 const.OPT_CONSISTENT_PUBLISHER: False, |
| 430 | 121 const.OPT_FTS_LANGUAGE: const.VAL_FTS_GENERIC, |
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122 }, |
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123 'collection': { |
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124 const.OPT_DELIVER_PAYLOADS: True, |
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125 const.OPT_SEND_LAST_PUBLISHED_ITEM: 'on_sub', |
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126 const.OPT_ACCESS_MODEL: const.VAL_AMODEL_DEFAULT, |
| 260 | 127 const.OPT_PUBLISH_MODEL: const.VAL_PMODEL_DEFAULT, |
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128 } |
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129 } |
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130 |
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131 def __init__(self, dbpool): |
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132 self.dbpool = dbpool |
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133 d = self.dbpool.runQuery("SELECT value FROM metadata WHERE key='version'") |
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134 d.addCallbacks(self._checkVersion, self._versionEb) |
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135 |
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136 def _checkVersion(self, row): |
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137 version = row[0].value |
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138 if version != CURRENT_VERSION: |
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139 logging.error("Bad database schema version ({current}), please upgrade to {needed}".format( |
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140 current=version, needed=CURRENT_VERSION)) |
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141 reactor.stop() |
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142 |
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143 def _versionEb(self, failure): |
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144 logging.error("Can't check schema version: {reason}".format(reason=failure)) |
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145 reactor.stop() |
| 107 | 146 |
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147 def _buildNode(self, row): |
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148 """Build a note class from database result row""" |
|
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149 if not row: |
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150 raise error.NodeNotFound() |
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151 |
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152 if row[2] == 'leaf': |
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153 configuration = { |
| 422 | 154 const.OPT_PERSIST_ITEMS: row[3], |
| 155 const.OPT_MAX_ITEMS: 'max' if row[4] == 0 else str(row[4]), | |
| 156 const.OPT_DELIVER_PAYLOADS: row[5], | |
| 157 const.OPT_SEND_LAST_PUBLISHED_ITEM: row[6], | |
| 158 const.OPT_ACCESS_MODEL:row[7], | |
| 159 const.OPT_PUBLISH_MODEL:row[8], | |
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160 const.OPT_OVERWRITE_POLICY: row[9], |
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161 const.OPT_SERIAL_IDS:row[10], |
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162 const.OPT_CONSISTENT_PUBLISHER:row[11], |
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163 const.OPT_FTS_LANGUAGE: row[12], |
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259
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164 } |
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165 schema = row[13] |
| 352 | 166 if schema is not None: |
| 167 schema = parseXml(schema) | |
| 168 node = LeafNode(row[0], row[1], configuration, schema) | |
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169 node.dbpool = self.dbpool |
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170 return node |
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171 elif row[2] == 'collection': |
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172 configuration = { |
| 422 | 173 const.OPT_DELIVER_PAYLOADS: row[5], |
| 174 const.OPT_SEND_LAST_PUBLISHED_ITEM: row[6], | |
| 175 const.OPT_ACCESS_MODEL: row[7], | |
| 176 const.OPT_PUBLISH_MODEL:row[8], | |
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177 } |
| 352 | 178 node = CollectionNode(row[0], row[1], configuration, None) |
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179 node.dbpool = self.dbpool |
| 107 | 180 return node |
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181 else: |
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182 raise BadRequest(text="Unknown node type !") |
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183 |
| 430 | 184 def getFTSLanguages(self): |
| 185 """Get list of available languages for full text search""" | |
| 186 return self.dbpool.runInteraction(self._getFTSLanguages) | |
| 187 | |
| 188 def _getFTSLanguages(self, cursor): | |
| 189 cursor.execute("SELECT cfgname FROM pg_ts_config") | |
| 190 result = [r.cfgname for r in cursor.fetchall()] | |
| 191 result.remove("simple") | |
| 192 result.insert(0, "generic") | |
| 193 Node.fts_languages = self.fts_languages = result | |
| 194 return result | |
| 195 | |
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196 def getNodeById(self, nodeDbId): |
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197 """Get node using database ID insted of pubsub identifier |
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198 |
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199 @param nodeDbId(unicode): database ID |
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200 """ |
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201 return self.dbpool.runInteraction(self._getNodeById, nodeDbId) |
|
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202 |
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203 def _getNodeById(self, cursor, nodeDbId): |
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204 cursor.execute("""SELECT node_id, |
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205 node, |
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206 node_type, |
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207 persist_items, |
| 422 | 208 max_items, |
|
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209 deliver_payloads, |
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210 send_last_published_item, |
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211 access_model, |
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212 publish_model, |
|
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213 overwrite_policy, |
|
367
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214 serial_ids, |
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215 consistent_publisher, |
| 430 | 216 fts_language, |
| 352 | 217 schema::text, |
|
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218 pep |
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219 FROM nodes |
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220 WHERE node_id=%s""", |
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221 (nodeDbId,)) |
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222 row = cursor.fetchone() |
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223 return self._buildNode(row) |
|
198
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224 |
|
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225 def getNode(self, nodeIdentifier, pep, recipient=None): |
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226 return self.dbpool.runInteraction(self._getNode, nodeIdentifier, pep, recipient) |
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227 |
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228 def _getNode(self, cursor, nodeIdentifier, pep, recipient): |
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229 cursor.execute(*withPEP("""SELECT node_id, |
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230 node, |
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231 node_type, |
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232 persist_items, |
| 422 | 233 max_items, |
|
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234 deliver_payloads, |
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235 send_last_published_item, |
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236 access_model, |
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237 publish_model, |
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238 overwrite_policy, |
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239 serial_ids, |
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240 consistent_publisher, |
| 430 | 241 fts_language, |
| 352 | 242 schema::text, |
|
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243 pep |
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244 FROM nodes |
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245 WHERE node=%s""", |
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246 (nodeIdentifier,), pep, recipient)) |
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247 row = cursor.fetchone() |
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248 return self._buildNode(row) |
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249 |
|
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250 def getNodeIds(self, pep, recipient, allowed_accesses=None): |
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251 """retrieve ids of existing nodes |
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252 |
|
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253 @param pep(bool): True if it's a PEP request |
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254 @param recipient(jid.JID, None): recipient of the PEP request |
|
349
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255 @param allowed_accesses(None, set): only nodes with access |
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256 in this set will be returned |
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257 None to return all nodes |
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258 @return (list[unicode]): ids of nodes |
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259 """ |
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260 if not pep: |
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261 query = "SELECT node from nodes WHERE pep is NULL" |
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262 values = [] |
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263 else: |
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264 query = "SELECT node from nodes WHERE pep=%s" |
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265 values = [recipient.userhost()] |
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266 |
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267 if allowed_accesses is not None: |
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268 query += "AND access_model IN %s" |
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269 values.append(tuple(allowed_accesses)) |
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270 |
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271 d = self.dbpool.runQuery(query, values) |
| 107 | 272 d.addCallback(lambda results: [r[0] for r in results]) |
| 273 return d | |
| 274 | |
| 352 | 275 def createNode(self, nodeIdentifier, owner, config, schema, pep, recipient=None): |
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276 return self.dbpool.runInteraction(self._createNode, nodeIdentifier, |
| 352 | 277 owner, config, schema, pep, recipient) |
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278 |
| 352 | 279 def _createNode(self, cursor, nodeIdentifier, owner, config, schema, pep, recipient): |
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280 if config['pubsub#node_type'] != 'leaf': |
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281 raise error.NoCollections() |
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282 |
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283 owner = owner.userhost() |
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284 |
| 107 | 285 try: |
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286 cursor.execute("""INSERT INTO nodes |
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287 (node, |
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288 node_type, |
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289 persist_items, |
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290 deliver_payloads, |
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291 send_last_published_item, |
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292 access_model, |
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293 publish_model, |
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294 overwrite_policy, |
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295 serial_ids, |
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296 consistent_publisher, |
| 430 | 297 fts_language, |
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298 schema, |
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299 pep) |
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300 VALUES |
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301 (%s, 'leaf', %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)""", |
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302 (nodeIdentifier, |
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303 config['pubsub#persist_items'], |
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304 config['pubsub#deliver_payloads'], |
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305 config['pubsub#send_last_published_item'], |
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306 config[const.OPT_ACCESS_MODEL], |
| 260 | 307 config[const.OPT_PUBLISH_MODEL], |
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308 config[const.OPT_OVERWRITE_POLICY], |
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309 config[const.OPT_SERIAL_IDS], |
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310 config[const.OPT_CONSISTENT_PUBLISHER], |
| 430 | 311 config[const.OPT_FTS_LANGUAGE], |
| 352 | 312 schema, |
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313 recipient.userhost() if pep else None |
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314 ) |
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315 ) |
|
332
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316 except cursor._pool.dbapi.IntegrityError as e: |
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317 if e.pgcode == "23505": |
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318 # unique_violation |
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319 raise error.NodeExists() |
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320 else: |
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321 raise error.InvalidConfigurationOption() |
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322 |
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323 cursor.execute(*withPEP("""SELECT node_id FROM nodes WHERE node=%s""", |
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324 (nodeIdentifier,), pep, recipient)); |
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325 node_id = cursor.fetchone()[0] |
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326 |
|
276
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327 cursor.execute("""SELECT 1 as bool from entities where jid=%s""", |
|
227
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328 (owner,)) |
| 107 | 329 |
| 330 if not cursor.fetchone(): | |
|
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331 # XXX: we can NOT rely on the previous query! Commit is needed now because |
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332 # if the entry exists the next query will leave the database in a corrupted |
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333 # state: the solution is to rollback. I tried with other methods like |
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334 # "WHERE NOT EXISTS" but none of them worked, so the following solution |
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335 # looks like the sole - unless you have auto-commit on. More info |
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336 # about this issue: http://cssmay.com/question/tag/tag-psycopg2 |
|
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337 cursor.connection.commit() |
|
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338 try: |
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339 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", |
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340 (owner,)) |
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341 except psycopg2.IntegrityError as e: |
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342 cursor.connection.rollback() |
|
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343 logging.warning("during node creation: %s" % e.message) |
| 107 | 344 |
| 345 cursor.execute("""INSERT INTO affiliations | |
| 346 (node_id, entity_id, affiliation) | |
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347 SELECT %s, entity_id, 'owner' FROM |
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348 (SELECT entity_id FROM entities |
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349 WHERE jid=%s) as e""", |
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350 (node_id, owner)) |
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351 |
|
330
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352 if config[const.OPT_ACCESS_MODEL] == const.VAL_AMODEL_PUBLISHER_ROSTER: |
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353 if const.OPT_ROSTER_GROUPS_ALLOWED in config: |
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354 allowed_groups = config[const.OPT_ROSTER_GROUPS_ALLOWED] |
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355 else: |
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356 allowed_groups = [] |
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357 for group in allowed_groups: |
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358 #TODO: check that group are actually in roster |
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359 cursor.execute("""INSERT INTO node_groups_authorized (node_id, groupname) |
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360 VALUES (%s,%s)""" , (node_id, group)) |
|
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361 # XXX: affiliations can't be set on during node creation (at least not with XEP-0060 alone) |
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362 # so whitelist affiliations need to be done afterward |
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363 |
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364 # no we may have to do extra things according to config options |
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365 default_conf = self.defaultConfig['leaf'] |
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366 # XXX: trigger works on node creation because OPT_SERIAL_IDS is False in defaultConfig |
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367 # if this value is changed, the _configurationTriggers method should be adapted. |
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368 Node._configurationTriggers(cursor, node_id, default_conf, config) |
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369 |
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370 def deleteNodeByDbId(self, db_id): |
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371 """Delete a node using directly its database id""" |
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372 return self.dbpool.runInteraction(self._deleteNodeByDbId, db_id) |
| 107 | 373 |
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374 def _deleteNodeByDbId(self, cursor, db_id): |
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375 cursor.execute("""DELETE FROM nodes WHERE node_id=%s""", |
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376 (db_id,)) |
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377 |
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378 if cursor.rowcount != 1: |
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379 raise error.NodeNotFound() |
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380 |
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381 def deleteNode(self, nodeIdentifier, pep, recipient=None): |
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382 return self.dbpool.runInteraction(self._deleteNode, nodeIdentifier, pep, recipient) |
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383 |
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384 def _deleteNode(self, cursor, nodeIdentifier, pep, recipient): |
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385 cursor.execute(*withPEP("""DELETE FROM nodes WHERE node=%s""", |
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386 (nodeIdentifier,), pep, recipient)) |
| 107 | 387 |
| 388 if cursor.rowcount != 1: | |
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389 raise error.NodeNotFound() |
| 107 | 390 |
| 331 | 391 def getAffiliations(self, entity, nodeIdentifier, pep, recipient=None): |
| 392 return self.dbpool.runInteraction(self._getAffiliations, entity, nodeIdentifier, pep, recipient) | |
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393 |
| 331 | 394 def _getAffiliations(self, cursor, entity, nodeIdentifier, pep, recipient=None): |
| 395 query = ["""SELECT node, affiliation FROM entities | |
| 396 NATURAL JOIN affiliations | |
| 397 NATURAL JOIN nodes | |
| 398 WHERE jid=%s"""] | |
| 399 args = [entity.userhost()] | |
| 400 | |
| 401 if nodeIdentifier is not None: | |
| 402 query.append("AND node=%s") | |
| 403 args.append(nodeIdentifier) | |
| 404 | |
| 405 cursor.execute(*withPEP(' '.join(query), args, pep, recipient)) | |
| 406 rows = cursor.fetchall() | |
| 407 return [tuple(r) for r in rows] | |
| 107 | 408 |
|
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409 def getSubscriptions(self, entity, nodeIdentifier=None, pep=False, recipient=None): |
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410 """retrieve subscriptions of an entity |
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411 |
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412 @param entity(jid.JID): entity to check |
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413 @param nodeIdentifier(unicode, None): node identifier |
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414 None to retrieve all subscriptions |
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415 @param pep: True if we are in PEP mode |
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416 @param recipient: jid of the recipient |
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417 """ |
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418 |
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419 def toSubscriptions(rows): |
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420 subscriptions = [] |
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421 for row in rows: |
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422 subscriber = jid.internJID('%s/%s' % (row.jid, |
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423 row.resource)) |
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424 subscription = Subscription(row.node, subscriber, row.state) |
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425 subscriptions.append(subscription) |
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426 return subscriptions |
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427 |
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428 query = ["""SELECT node, |
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429 jid, |
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430 resource, |
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431 state |
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432 FROM entities |
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433 NATURAL JOIN subscriptions |
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434 NATURAL JOIN nodes |
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435 WHERE jid=%s"""] |
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436 |
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437 args = [entity.userhost()] |
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438 |
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439 if nodeIdentifier is not None: |
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440 query.append("AND node=%s") |
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441 args.append(nodeIdentifier) |
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442 |
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443 d = self.dbpool.runQuery(*withPEP(' '.join(query), args, pep, recipient)) |
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444 d.addCallback(toSubscriptions) |
| 107 | 445 return d |
| 446 | |
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447 def getDefaultConfiguration(self, nodeType): |
|
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448 return self.defaultConfig[nodeType].copy() |
| 107 | 449 |
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450 def formatLastItems(self, result): |
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451 last_items = [] |
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452 for pep_jid_s, node, data, item_access_model in result: |
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453 pep_jid = jid.JID(pep_jid_s) |
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454 item = generic.stripNamespace(parseXml(data)) |
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455 last_items.append((pep_jid, node, item, item_access_model)) |
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456 return last_items |
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457 |
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458 def getLastItems(self, entities, nodes, node_accesses, item_accesses, pep): |
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459 """get last item for several nodes and entities in a single request""" |
|
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460 # TODO: manage other access model (whitelist, …) |
|
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461 if not entities or not nodes or not node_accesses or not item_accesses: |
|
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462 raise BadRequest(text="entities, nodes and accesses must not be empty") |
|
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463 if any(not {"open", "presence"}.issuperset(a) |
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464 for a in (node_accesses, item_accesses)): |
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465 raise NotImplementedError('only "open" and "presence" access model are handled for now') |
|
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466 if not pep: |
| 414 | 467 raise NotImplementedError("getLastItems is only implemented for PEP at the moment") |
|
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468 d = self.dbpool.runQuery("""SELECT DISTINCT ON (node_id) pep, node, data::text, items.access_model |
|
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469 FROM items |
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470 NATURAL JOIN nodes |
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471 WHERE nodes.pep IN %s |
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472 AND node IN %s |
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473 AND nodes.access_model in %s |
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474 AND items.access_model in %s |
|
454
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475 ORDER BY node_id DESC, items.updated DESC, items.item_id DESC""", |
|
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476 (tuple([e.userhost() for e in entities]), |
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477 nodes, |
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478 node_accesses, |
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479 item_accesses)) |
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480 d.addCallback(self.formatLastItems) |
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481 return d |
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482 |
|
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483 def getRosterCache(self): |
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484 return self.dbpool.runInteraction(self._getRosterCache) |
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485 |
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486 def _getRosterCache(self, cursor): |
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487 cursor.execute( |
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488 "SELECT roster_id, jid, version, updated, roster::text FROM roster" |
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489 ) |
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490 return [(r.roster_id, jid.JID(r.jid), r.version, r.updated.timestamp(), |
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491 parseXml(r.roster)) for r in cursor.fetchall()] |
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492 |
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493 def setRosterCache( |
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494 self, |
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495 jid_: jid.JID, |
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496 version: str, |
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497 updated: int, |
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498 roster: domish.Element |
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499 ): |
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500 return self.dbpool.runInteraction(self._setRosterCache, jid_, version, updated, roster) |
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501 |
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502 def _setRosterCache(self, cursor, jid_, version, updated, roster): |
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503 cursor.execute( |
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504 "INSERT INTO roster(jid, version, updated, roster) VALUES (%s, %s, %s, %s) " |
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505 "ON CONFLICT (jid) DO UPDATE SET version=EXCLUDED.version, " |
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506 "updated=EXCLUDED.updated, roster=EXCLUDED.roster", |
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507 ( |
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508 jid_.userhost(), |
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509 version, |
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510 datetime.fromtimestamp(updated, tz=timezone.utc), |
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511 roster.toXml() |
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512 ) |
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513 ) |
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514 |
|
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515 |
| 414 | 516 @implementer(iidavoll.INode) |
| 107 | 517 class Node: |
| 518 | |
| 519 | |
| 352 | 520 def __init__(self, nodeDbId, nodeIdentifier, config, schema): |
|
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521 self.nodeDbId = nodeDbId |
|
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522 self.nodeIdentifier = nodeIdentifier |
| 107 | 523 self._config = config |
| 352 | 524 self._schema = schema |
| 107 | 525 |
|
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526 def _checkNodeExists(self, cursor): |
|
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527 cursor.execute("""SELECT 1 as exist FROM nodes WHERE node_id=%s""", |
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528 (self.nodeDbId,)) |
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529 if not cursor.fetchone(): |
|
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530 raise error.NodeNotFound() |
|
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531 |
|
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532 def getType(self): |
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533 return self.nodeType |
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534 |
|
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535 def getOwners(self): |
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536 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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537 d.addCallback(lambda rows: [jid.JID(r[0]) for r in rows]) |
|
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538 return d |
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539 |
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540 def getConfiguration(self): |
| 107 | 541 return self._config |
| 542 | |
|
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543 def getNextId(self): |
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544 """return XMPP item id usable for next item to publish |
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545 |
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546 the return value will be next int if serila_ids is set, |
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547 else an UUID will be returned |
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548 """ |
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549 if self._config[const.OPT_SERIAL_IDS]: |
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550 d = self.dbpool.runQuery("SELECT nextval('{seq_name}')".format( |
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551 seq_name = ITEMS_SEQ_NAME.format(node_id=self.nodeDbId))) |
| 414 | 552 d.addCallback(lambda rows: str(rows[0][0])) |
|
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553 return d |
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554 else: |
| 414 | 555 return defer.succeed(str(uuid.uuid4())) |
|
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556 |
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557 @staticmethod |
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558 def _configurationTriggers(cursor, node_id, old_config, new_config): |
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559 """trigger database relative actions needed when a config is changed |
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560 |
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561 @param cursor(): current db cursor |
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562 @param node_id(unicode): database ID of the node |
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563 @param old_config(dict): config of the node before the change |
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564 @param new_config(dict): new options that will be changed |
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565 """ |
| 430 | 566 if const.OPT_SERIAL_IDS not in new_config: |
| 567 return | |
|
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568 serial_ids = new_config[const.OPT_SERIAL_IDS] |
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569 if serial_ids != old_config[const.OPT_SERIAL_IDS]: |
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570 # serial_ids option has been modified, |
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571 # we need to handle corresponding sequence |
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572 |
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573 # XXX: we use .format in following queries because values |
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574 # are generated by ourself |
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575 seq_name = ITEMS_SEQ_NAME.format(node_id=node_id) |
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576 if serial_ids: |
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577 # the next query get the max value +1 of all XMPP items ids |
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578 # which are integers, and default to 1 |
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579 cursor.execute(NEXT_ITEM_ID_QUERY.format(node_id=node_id)) |
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580 next_val = cursor.fetchone()[0] |
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581 cursor.execute("DROP SEQUENCE IF EXISTS {seq_name}".format(seq_name = seq_name)) |
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582 cursor.execute("CREATE SEQUENCE {seq_name} START {next_val} OWNED BY nodes.node_id".format( |
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583 seq_name = seq_name, |
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584 next_val = next_val)) |
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585 else: |
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586 cursor.execute("DROP SEQUENCE IF EXISTS {seq_name}".format(seq_name = seq_name)) |
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587 |
|
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588 def setConfiguration(self, options): |
| 430 | 589 to_delete = [] |
| 590 for option, value in options.items(): | |
| 591 try: | |
| 592 if self._config[option] == value: | |
| 593 to_delete.append(option) | |
| 594 except KeyError: | |
| 595 raise BadRequest(text=f"Invalid option: {option!r}") | |
|
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596 |
| 430 | 597 for option in to_delete: |
|
434
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|
598 del options.fields[option] |
|
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|
599 |
|
434
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600 if not options.fields: |
|
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|
601 return defer.succeed(None) |
| 430 | 602 |
| 603 if options.get(const.OPT_MAX_ITEMS) == "max": | |
|
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604 # XXX: "max" is default value for config we must convert |
|
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605 # it to an interger. See backend's _doSetNodeConfiguration comment |
| 430 | 606 options[const.OPT_MAX_ITEMS] = "0" |
|
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607 |
| 430 | 608 if ((const.OPT_FTS_LANGUAGE in options |
| 609 and options[const.OPT_FTS_LANGUAGE] not in self.fts_languages)): | |
| 610 raise BadRequest(text= | |
| 611 f"invalid {const.OPT_FTS_LANGUAGE} value: " | |
| 612 f"{options[const.OPT_FTS_LANGUAGE]!r}" | |
| 613 ) | |
| 614 | |
| 615 | |
| 616 d = self.dbpool.runInteraction(self._setConfiguration, options) | |
| 617 d.addCallback(self._updateCachedConfiguration, options) | |
|
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618 return d |
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619 |
| 430 | 620 def _setConfiguration(self, cursor, options): |
| 621 self._configurationTriggers(cursor, self.nodeDbId, self._config, options) | |
| 622 # options names all follow the scheme "pubsub#{col_name}" | |
| 623 col_names = (o[7:] for o in options) | |
| 624 values = ','.join(f"{name}=%s" for name in col_names) | |
| 625 cursor.execute(f"UPDATE nodes SET {values} WHERE node_id=%s", | |
| 626 (*options.values(), self.nodeDbId)) | |
| 627 if cursor.rowcount == 0: | |
| 628 raise error.NodeNotFound() | |
| 107 | 629 |
| 430 | 630 def _updateCachedConfiguration(self, __, options): |
| 631 self._config.update(options) | |
|
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632 |
| 352 | 633 def getSchema(self): |
| 634 return self._schema | |
| 635 | |
| 636 def setSchema(self, schema): | |
| 637 d = self.dbpool.runInteraction(self._setSchema, schema) | |
| 638 d.addCallback(self._setCachedSchema, schema) | |
| 639 return d | |
| 640 | |
| 641 def _setSchema(self, cursor, schema): | |
| 642 self._checkNodeExists(cursor) | |
| 643 cursor.execute("""UPDATE nodes SET schema=%s | |
| 644 WHERE node_id=%s""", | |
| 645 (schema.toXml() if schema else None, | |
| 646 self.nodeDbId)) | |
| 647 | |
| 430 | 648 def _setCachedSchema(self, __, schema): |
| 352 | 649 self._schema = schema |
| 650 | |
|
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651 def getMetaData(self): |
| 107 | 652 config = copy.copy(self._config) |
|
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653 config["pubsub#node_type"] = self.nodeType |
| 107 | 654 return config |
| 655 | |
|
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656 def getAffiliation(self, entity): |
|
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657 return self.dbpool.runInteraction(self._getAffiliation, entity) |
| 107 | 658 |
|
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659 def _getAffiliation(self, cursor, entity): |
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660 self._checkNodeExists(cursor) |
| 107 | 661 cursor.execute("""SELECT affiliation FROM affiliations |
|
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662 NATURAL JOIN nodes |
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663 NATURAL JOIN entities |
|
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664 WHERE node_id=%s AND jid=%s""", |
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665 (self.nodeDbId, |
|
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666 entity.userhost())) |
| 107 | 667 |
| 668 try: | |
| 669 return cursor.fetchone()[0] | |
| 670 except TypeError: | |
| 671 return None | |
| 672 | |
|
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673 def getAccessModel(self): |
|
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674 return self._config[const.OPT_ACCESS_MODEL] |
|
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675 |
|
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676 def getSubscription(self, subscriber): |
|
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677 return self.dbpool.runInteraction(self._getSubscription, subscriber) |
|
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678 |
|
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679 def _getSubscription(self, cursor, subscriber): |
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680 self._checkNodeExists(cursor) |
|
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681 |
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682 userhost = subscriber.userhost() |
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683 resource = subscriber.resource or '' |
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684 |
|
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685 cursor.execute("""SELECT state FROM subscriptions |
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686 NATURAL JOIN nodes |
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687 NATURAL JOIN entities |
|
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688 WHERE node_id=%s AND jid=%s AND resource=%s""", |
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689 (self.nodeDbId, |
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690 userhost, |
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691 resource)) |
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692 |
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693 row = cursor.fetchone() |
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694 if not row: |
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695 return None |
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696 else: |
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697 return Subscription(self.nodeIdentifier, subscriber, row[0]) |
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698 |
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699 def getSubscriptions(self, state=None): |
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700 return self.dbpool.runInteraction(self._getSubscriptions, state) |
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701 |
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702 def _getSubscriptions(self, cursor, state): |
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703 self._checkNodeExists(cursor) |
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704 |
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705 query = """SELECT node, jid, resource, state, |
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706 subscription_type, subscription_depth |
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707 FROM subscriptions |
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708 NATURAL JOIN nodes |
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709 NATURAL JOIN entities |
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710 WHERE node_id=%s""" |
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711 values = [self.nodeDbId] |
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712 |
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713 if state: |
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714 query += " AND state=%s" |
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715 values.append(state) |
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716 |
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717 cursor.execute(query, values) |
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718 rows = cursor.fetchall() |
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719 |
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720 subscriptions = [] |
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721 for row in rows: |
| 414 | 722 subscriber = jid.JID('%s/%s' % (row.jid, row.resource)) |
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723 |
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724 options = {} |
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725 if row.subscription_type: |
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726 options['pubsub#subscription_type'] = row.subscription_type; |
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727 if row.subscription_depth: |
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728 options['pubsub#subscription_depth'] = row.subscription_depth; |
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729 |
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730 subscriptions.append(Subscription(row.node, subscriber, |
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731 row.state, options)) |
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732 |
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733 return subscriptions |
| 107 | 734 |
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735 def addSubscription(self, subscriber, state, config): |
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736 return self.dbpool.runInteraction(self._addSubscription, subscriber, |
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737 state, config) |
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738 |
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739 def _addSubscription(self, cursor, subscriber, state, config): |
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740 self._checkNodeExists(cursor) |
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741 |
| 107 | 742 userhost = subscriber.userhost() |
| 743 resource = subscriber.resource or '' | |
| 744 | |
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745 subscription_type = config.get('pubsub#subscription_type') |
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746 subscription_depth = config.get('pubsub#subscription_depth') |
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747 |
| 107 | 748 try: |
| 749 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", | |
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750 (userhost,)) |
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751 except cursor._pool.dbapi.IntegrityError: |
|
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752 cursor.connection.rollback() |
| 107 | 753 |
| 754 try: | |
| 755 cursor.execute("""INSERT INTO subscriptions | |
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756 (node_id, entity_id, resource, state, |
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757 subscription_type, subscription_depth) |
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758 SELECT %s, entity_id, %s, %s, %s, %s FROM |
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759 (SELECT entity_id FROM entities |
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760 WHERE jid=%s) AS ent_id""", |
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761 (self.nodeDbId, |
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762 resource, |
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763 state, |
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764 subscription_type, |
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765 subscription_depth, |
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766 userhost)) |
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767 except cursor._pool.dbapi.IntegrityError: |
|
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768 raise error.SubscriptionExists() |
|
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769 |
|
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770 def removeSubscription(self, subscriber): |
|
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771 return self.dbpool.runInteraction(self._removeSubscription, |
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772 subscriber) |
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773 |
|
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774 def _removeSubscription(self, cursor, subscriber): |
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775 self._checkNodeExists(cursor) |
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776 |
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777 userhost = subscriber.userhost() |
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778 resource = subscriber.resource or '' |
| 107 | 779 |
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780 cursor.execute("""DELETE FROM subscriptions WHERE |
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781 node_id=%s AND |
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782 entity_id=(SELECT entity_id FROM entities |
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783 WHERE jid=%s) AND |
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784 resource=%s""", |
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785 (self.nodeDbId, |
|
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786 userhost, |
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787 resource)) |
|
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788 if cursor.rowcount != 1: |
|
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789 raise error.NotSubscribed() |
| 107 | 790 |
|
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791 return None |
| 107 | 792 |
|
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793 def setSubscriptions(self, subscriptions): |
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794 return self.dbpool.runInteraction(self._setSubscriptions, subscriptions) |
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795 |
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796 def _setSubscriptions(self, cursor, subscriptions): |
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797 self._checkNodeExists(cursor) |
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798 |
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799 entities = self.getOrCreateEntities(cursor, [s.subscriber for s in subscriptions]) |
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800 entities_map = {jid.JID(e.jid): e for e in entities} |
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801 |
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802 # then we construct values for subscriptions update according to entity_id we just got |
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803 placeholders = ','.join(len(subscriptions) * ["%s"]) |
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804 values = [] |
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805 for subscription in subscriptions: |
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806 entity_id = entities_map[subscription.subscriber].entity_id |
| 414 | 807 resource = subscription.subscriber.resource or '' |
|
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808 values.append((self.nodeDbId, entity_id, resource, subscription.state, None, None)) |
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809 # 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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810 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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811 |
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812 def isSubscribed(self, entity): |
|
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813 return self.dbpool.runInteraction(self._isSubscribed, entity) |
|
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814 |
|
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815 def _isSubscribed(self, cursor, entity): |
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816 self._checkNodeExists(cursor) |
|
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817 |
|
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818 cursor.execute("""SELECT 1 as bool FROM entities |
|
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819 NATURAL JOIN subscriptions |
|
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820 NATURAL JOIN nodes |
|
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821 WHERE entities.jid=%s |
|
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822 AND node_id=%s AND state='subscribed'""", |
|
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823 (entity.userhost(), |
|
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824 self.nodeDbId)) |
|
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825 |
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|
826 return cursor.fetchone() is not None |
| 107 | 827 |
|
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828 def getAffiliations(self): |
|
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829 return self.dbpool.runInteraction(self._getAffiliations) |
|
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830 |
|
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831 def _getAffiliations(self, cursor): |
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832 self._checkNodeExists(cursor) |
|
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833 |
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|
834 cursor.execute("""SELECT jid, affiliation FROM nodes |
|
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835 NATURAL JOIN affiliations |
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836 NATURAL JOIN entities |
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837 WHERE node_id=%s""", |
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838 (self.nodeDbId,)) |
|
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839 result = cursor.fetchall() |
|
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840 |
|
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841 return {jid.internJID(r[0]): r[1] for r in result} |
|
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842 |
| 331 | 843 def getOrCreateEntities(self, cursor, entities_jids): |
| 844 """Get entity_id from entities in entities table | |
| 845 | |
| 846 Entities will be inserted it they don't exist | |
| 847 @param entities_jid(list[jid.JID]): entities to get or create | |
|
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|
848 @return list[record(entity_id,jid)]]: list of entity_id and jid (as plain string) |
| 331 | 849 both existing and inserted entities are returned |
| 850 """ | |
| 851 # cf. http://stackoverflow.com/a/35265559 | |
| 852 placeholders = ','.join(len(entities_jids) * ["(%s)"]) | |
| 853 query = ( | |
| 854 """ | |
| 855 WITH | |
| 856 jid_values (jid) AS ( | |
| 857 VALUES {placeholders} | |
| 858 ), | |
| 859 inserted (entity_id, jid) AS ( | |
| 860 INSERT INTO entities (jid) | |
| 861 SELECT jid | |
| 862 FROM jid_values | |
| 863 ON CONFLICT DO NOTHING | |
| 864 RETURNING entity_id, jid | |
| 865 ) | |
| 866 SELECT e.entity_id, e.jid | |
| 867 FROM entities e JOIN jid_values jv ON jv.jid = e.jid | |
| 868 UNION ALL | |
| 869 SELECT entity_id, jid | |
| 870 FROM inserted""".format(placeholders=placeholders)) | |
| 871 cursor.execute(query, [j.userhost() for j in entities_jids]) | |
| 872 return cursor.fetchall() | |
| 873 | |
| 874 def setAffiliations(self, affiliations): | |
| 875 return self.dbpool.runInteraction(self._setAffiliations, affiliations) | |
| 876 | |
| 877 def _setAffiliations(self, cursor, affiliations): | |
| 878 self._checkNodeExists(cursor) | |
| 879 | |
| 880 entities = self.getOrCreateEntities(cursor, affiliations) | |
| 881 | |
| 882 # then we construct values for affiliations update according to entity_id we just got | |
| 883 placeholders = ','.join(len(affiliations) * ["(%s,%s,%s)"]) | |
| 884 values = [] | |
| 414 | 885 for e in entities: |
| 886 values.extend((e.entity_id, affiliations[jid.JID(e.jid)], self.nodeDbId)) | |
| 331 | 887 |
| 888 # we use upsert so new values are inserted and existing one updated. This feature is only available for PostgreSQL >= 9.5 | |
| 889 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) | |
| 890 | |
| 891 def deleteAffiliations(self, entities): | |
| 892 return self.dbpool.runInteraction(self._deleteAffiliations, entities) | |
| 893 | |
| 894 def _deleteAffiliations(self, cursor, entities): | |
| 895 """delete affiliations and subscriptions for this entity""" | |
| 896 self._checkNodeExists(cursor) | |
| 897 placeholders = ','.join(len(entities) * ["%s"]) | |
| 898 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]) | |
| 899 | |
| 900 rows = cursor.fetchall() | |
| 901 placeholders = ','.join(len(rows) * ["%s"]) | |
| 902 cursor.execute("DELETE FROM subscriptions WHERE node_id=%s AND entity_id in (" + placeholders + ")", [self.nodeDbId] + [r[0] for r in rows]) | |
| 903 | |
| 904 def getAuthorizedGroups(self): | |
| 905 return self.dbpool.runInteraction(self._getNodeGroups) | |
| 906 | |
| 907 def _getAuthorizedGroups(self, cursor): | |
| 908 cursor.execute("SELECT groupname FROM node_groups_authorized NATURAL JOIN nodes WHERE node=%s", | |
| 909 (self.nodeDbId,)) | |
| 910 rows = cursor.fetchall() | |
| 911 return [row[0] for row in rows] | |
|
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912 |
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913 |
| 414 | 914 @implementer(iidavoll.ILeafNode) |
|
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915 class LeafNode(Node): |
|
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916 |
| 107 | 917 |
|
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918 nodeType = 'leaf' |
| 107 | 919 |
| 451 | 920 def getOrderBy(self, ext_data, direction='ASC'): |
|
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921 """Return ORDER BY clause corresponding to Order By key in ext_data |
|
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922 |
|
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|
923 @param ext_data (dict): extra data as used in getItems |
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924 @param direction (unicode): ORDER BY direction (ASC or DESC) |
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925 @return (unicode): ORDER BY clause to use |
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926 """ |
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927 keys = ext_data.get('order_by') |
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|
928 if not keys: |
|
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|
929 return f"ORDER BY updated {direction}, item_id {direction}" |
|
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|
930 cols_statmnt = [] |
|
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|
931 for key in keys: |
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|
932 if key == 'creation': |
|
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|
933 column = 'created' |
|
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|
934 elif key == 'modification': |
|
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935 column = 'updated' |
|
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936 else: |
| 414 | 937 log.msg("WARNING: Unknown order by key: {key}".format(key=key)) |
|
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938 column = 'updated' |
|
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|
939 cols_statmnt.append(f"{column} {direction}") |
|
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940 |
|
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|
941 cols_statmnt.append(f"item_id {direction}") |
| 414 | 942 return "ORDER BY " + ",".join([col for col in cols_statmnt]) |
|
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943 |
|
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|
944 @defer.inlineCallbacks |
|
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|
945 def storeItems(self, items_data, publisher): |
|
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|
946 # XXX: runInteraction doesn't seem to work when there are several "insert" |
|
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|
947 # or "update". |
|
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|
948 # Before the unpacking was done in _storeItems, but this was causing trouble |
|
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|
949 # in case of multiple items_data. So this has now be moved here. |
|
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|
950 # FIXME: investigate the issue with runInteraction |
|
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|
951 for item_data in items_data: |
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|
952 yield self.dbpool.runInteraction(self._storeItems, item_data, publisher) |
|
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953 |
|
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|
954 def _storeItems(self, cursor, item_data, publisher): |
| 250 | 955 self._checkNodeExists(cursor) |
|
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|
956 self._storeItem(cursor, item_data, publisher) |
| 244 | 957 |
|
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958 def _storeItem(self, cursor, item_data, publisher): |
|
367
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|
959 # first try to insert the item |
|
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|
960 # - if it fails (conflict), and the item is new and we have serial_ids options, |
|
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|
961 # current id will be recomputed using next item id query (note that is not perfect, as |
|
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|
962 # table is not locked and this can fail if two items are added at the same time |
|
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|
963 # but this can only happen with serial_ids and if future ids have been set by a client, |
|
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|
964 # this case should be rare enough to consider this situation acceptable) |
|
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965 # - if item insertion fail and the item is not new, we do an update |
|
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|
966 # - in other cases, exception is raised |
|
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|
967 item, access_model, item_config = item_data.item, item_data.access_model, item_data.config |
|
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|
968 data = item.toXml() |
| 430 | 969 data_fts_cfg = self._config[const.OPT_FTS_LANGUAGE] |
| 970 if data_fts_cfg == const.VAL_FTS_GENERIC: | |
| 971 data_fts_cfg = "simple" | |
|
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972 |
| 430 | 973 insert_query = ( |
| 974 "INSERT INTO items(node_id, item, publisher, data, access_model, " | |
| 975 "data_fts_cfg) VALUES (%s, %s, %s, %s, %s, %s) RETURNING item_id" | |
| 976 ) | |
|
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977 insert_data = [self.nodeDbId, |
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|
978 item["id"], |
|
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|
979 publisher.full(), |
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|
980 data, |
|
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|
981 access_model, |
| 430 | 982 data_fts_cfg, |
| 983 ] | |
|
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984 |
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985 try: |
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986 cursor.execute(insert_query, insert_data) |
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987 except cursor._pool.dbapi.IntegrityError as e: |
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988 if e.pgcode != "23505": |
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989 # we only handle unique_violation, every other exception must be raised |
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990 raise e |
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991 cursor.connection.rollback() |
|
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992 # the item already exist |
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993 if item_data.new: |
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994 # the item is new |
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995 if self._config[const.OPT_SERIAL_IDS]: |
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996 # this can happen with serial_ids, if a item has been stored |
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997 # with a future id (generated by XMPP client) |
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998 cursor.execute(NEXT_ITEM_ID_QUERY.format(node_id=self.nodeDbId)) |
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999 next_id = cursor.fetchone()[0] |
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1000 # we update the sequence, so we can skip conflicting ids |
| 414 | 1001 cursor.execute("SELECT setval('{seq_name}', %s)".format( |
|
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1002 seq_name = ITEMS_SEQ_NAME.format(node_id=self.nodeDbId)), [next_id]) |
|
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1003 # and now we can retry the query with the new id |
| 414 | 1004 item['id'] = insert_data[1] = str(next_id) |
|
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1005 # item saved in DB must also be updated with the new id |
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1006 insert_data[3] = item.toXml() |
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1007 cursor.execute(insert_query, insert_data) |
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1008 else: |
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1009 # but if we have not serial_ids, we have a real problem |
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1010 raise e |
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1011 else: |
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1012 # this is an update |
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1013 cursor.execute("""UPDATE items SET updated=now(), publisher=%s, data=%s |
| 430 | 1014 WHERE node_id=%s AND items.item=%s |
|
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1015 RETURNING item_id""", |
|
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1016 (publisher.full(), |
|
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1017 data, |
|
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1018 self.nodeDbId, |
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1019 item["id"])) |
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1020 if cursor.rowcount != 1: |
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1021 raise exceptions.InternalError("item has not been updated correctly") |
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1022 item_id = cursor.fetchone()[0]; |
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1023 self._storeCategories(cursor, item_id, item_data.categories, update=True) |
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1024 return |
|
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1025 |
|
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1026 item_id = cursor.fetchone()[0]; |
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1027 self._storeCategories(cursor, item_id, item_data.categories) |
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1028 |
|
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1029 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
| 250 | 1030 if const.OPT_ROSTER_GROUPS_ALLOWED in item_config: |
| 422 | 1031 # XXX: needed to force list if there is only one value |
| 1032 item_config.fields[const.OPT_ROSTER_GROUPS_ALLOWED].fieldType='list-multi' | |
| 250 | 1033 allowed_groups = item_config[const.OPT_ROSTER_GROUPS_ALLOWED] |
|
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1034 else: |
|
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1035 allowed_groups = [] |
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1036 for group in allowed_groups: |
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1037 #TODO: check that group are actually in roster |
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1038 cursor.execute("""INSERT INTO item_groups_authorized (item_id, groupname) |
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1039 VALUES (%s,%s)""" , (item_id, group)) |
|
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1040 # TODO: whitelist access model |
|
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1041 |
| 422 | 1042 max_items = self._config.get(const.OPT_MAX_ITEMS, 'max') |
| 1043 | |
| 1044 if max_items != 'max': | |
| 1045 try: | |
| 1046 max_items = int(self._config[const.OPT_MAX_ITEMS]) | |
| 1047 except ValueError: | |
| 1048 log.err(f"Invalid max_items value: {max_items!r}") | |
| 1049 else: | |
| 1050 if max_items > 0: | |
| 1051 # we delete all items above the requested max | |
| 1052 cursor.execute( | |
| 1053 "DELETE FROM items WHERE node_id=%s and item_id in (SELECT " | |
| 1054 "item_id FROM items WHERE node_id=%s ORDER BY items.updated " | |
| 1055 "DESC, items.item_id DESC OFFSET %s)" , | |
| 1056 (self.nodeDbId, self.nodeDbId, max_items) | |
| 1057 ) | |
| 1058 | |
| 1059 | |
|
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1060 def _storeCategories(self, cursor, item_id, categories, update=False): |
|
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1061 # TODO: handle canonical form |
|
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1062 if update: |
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1063 cursor.execute("""DELETE FROM item_categories |
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1064 WHERE item_id=%s""", (item_id,)) |
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1065 |
|
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1066 # we use a set to avoid duplicates |
|
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1067 for category in set(categories): |
|
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1068 cursor.execute("""INSERT INTO item_categories (item_id, category) |
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1069 VALUES (%s, %s)""", (item_id, category)) |
| 107 | 1070 |
|
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1071 def removeItems(self, itemIdentifiers): |
|
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1072 return self.dbpool.runInteraction(self._removeItems, itemIdentifiers) |
|
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1073 |
|
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1074 def _removeItems(self, cursor, itemIdentifiers): |
|
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1075 self._checkNodeExists(cursor) |
|
180
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1076 |
|
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1077 deleted = [] |
|
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1078 |
|
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1079 for itemIdentifier in itemIdentifiers: |
|
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1080 cursor.execute("""DELETE FROM items WHERE |
|
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1081 node_id=%s AND |
|
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1082 item=%s""", |
|
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1083 (self.nodeDbId, |
|
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1084 itemIdentifier)) |
|
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1085 |
|
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1086 if cursor.rowcount: |
|
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1087 deleted.append(itemIdentifier) |
|
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1088 |
|
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|
1089 return deleted |
| 107 | 1090 |
| 278 | 1091 def getItems(self, authorized_groups, unrestricted, maxItems=None, ext_data=None): |
|
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1092 """ Get all authorised items |
| 346 | 1093 |
|
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1094 @param authorized_groups: we want to get items that these groups can access |
|
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1095 @param unrestricted: if true, don't check permissions (i.e.: get all items) |
| 318 | 1096 @param maxItems: nb of items we want to get |
| 1097 @param ext_data: options for extra features like RSM and MAM | |
| 278 | 1098 |
|
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1099 @return: list of container.ItemData |
|
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1100 if unrestricted is False, access_model and config will be None |
|
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1101 """ |
| 278 | 1102 if ext_data is None: |
| 1103 ext_data = {} | |
| 347 | 1104 return self.dbpool.runInteraction(self._getItems, authorized_groups, unrestricted, maxItems, ext_data, ids_only=False) |
|
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1105 |
| 346 | 1106 def getItemsIds(self, authorized_groups, unrestricted, maxItems=None, ext_data=None): |
| 1107 """ Get all authorised items ids | |
| 1108 | |
| 1109 @param authorized_groups: we want to get items that these groups can access | |
| 1110 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1111 @param maxItems: nb of items we want to get | |
| 1112 @param ext_data: options for extra features like RSM and MAM | |
| 1113 | |
| 1114 @return list(unicode): list of ids | |
| 1115 """ | |
| 1116 if ext_data is None: | |
| 1117 ext_data = {} | |
| 1118 return self.dbpool.runInteraction(self._getItems, authorized_groups, unrestricted, maxItems, ext_data, ids_only=True) | |
| 1119 | |
| 318 | 1120 def _appendSourcesAndFilters(self, query, args, authorized_groups, unrestricted, ext_data): |
| 1121 """append sources and filters to sql query requesting items and return ORDER BY | |
| 278 | 1122 |
| 318 | 1123 arguments query, args, authorized_groups, unrestricted and ext_data are the same as for |
| 1124 _getItems | |
| 1125 """ | |
| 1126 # SOURCES | |
|
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1127 query.append("FROM items") |
| 323 | 1128 |
|
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|
1129 if unrestricted: |
| 323 | 1130 query_filters = ["WHERE node_id=%s"] |
| 318 | 1131 args.append(self.nodeDbId) |
|
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1132 else: |
| 323 | 1133 query.append("LEFT JOIN item_groups_authorized USING (item_id)") |
| 318 | 1134 args.append(self.nodeDbId) |
| 1135 if authorized_groups: | |
| 1136 get_groups = " or (items.access_model='roster' and groupname in %s)" | |
| 1137 args.append(authorized_groups) | |
| 1138 else: | |
| 1139 get_groups = "" | |
| 278 | 1140 |
| 323 | 1141 query_filters = ["WHERE node_id=%s AND (items.access_model='open'" + get_groups + ")"] |
|
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1142 |
| 318 | 1143 # FILTERS |
|
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|
1144 if 'filters' in ext_data: # MAM filters |
|
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1145 for filter_ in ext_data['filters']: |
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1146 if filter_.var == 'start': |
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1147 query_filters.append("AND created>=%s") |
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1148 args.append(filter_.value) |
| 323 | 1149 elif filter_.var == 'end': |
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1150 query_filters.append("AND created<=%s") |
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1151 args.append(filter_.value) |
| 323 | 1152 elif filter_.var == 'with': |
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1153 jid_s = filter_.value |
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1154 if '/' in jid_s: |
| 323 | 1155 query_filters.append("AND publisher=%s") |
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1157 else: |
| 323 | 1158 query_filters.append("AND publisher LIKE %s") |
| 414 | 1159 args.append("{}%".format(filter_.value)) |
| 430 | 1160 elif filter_.var == const.MAM_FILTER_FTS: |
| 1161 fts_cfg = self._config[const.OPT_FTS_LANGUAGE] | |
| 1162 if fts_cfg == const.VAL_FTS_GENERIC: | |
| 1163 fts_cfg = "simple" | |
| 1164 query_filters.append( | |
| 1165 "AND data_fts @@ websearch_to_tsquery(%s, %s)" | |
| 1166 ) | |
| 1167 args.append(fts_cfg) | |
| 1168 args.append(filter_.value) | |
| 323 | 1169 elif filter_.var == const.MAM_FILTER_CATEGORY: |
| 1170 query.append("LEFT JOIN item_categories USING (item_id)") | |
| 1171 query_filters.append("AND category=%s") | |
| 1172 args.append(filter_.value) | |
| 1173 else: | |
| 1174 log.msg("WARNING: unknown filter: {}".format(filter_.encode('utf-8'))) | |
| 1175 | |
| 1176 query.extend(query_filters) | |
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1177 |
| 451 | 1178 return self.getOrderBy(ext_data, direction="ASC") |
| 318 | 1179 |
| 346 | 1180 def _getItems(self, cursor, authorized_groups, unrestricted, maxItems, ext_data, ids_only): |
| 318 | 1181 self._checkNodeExists(cursor) |
| 1182 | |
| 1183 if maxItems == 0: | |
| 1184 return [] | |
| 1185 | |
| 1186 args = [] | |
| 1187 | |
| 1188 # SELECT | |
| 346 | 1189 if ids_only: |
| 1190 query = ["SELECT item"] | |
| 1191 else: | |
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1192 query = ["SELECT data::text,items.access_model,item_id,created,updated"] |
| 318 | 1193 |
| 1194 query_order = self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 278 | 1195 |
| 1196 if 'rsm' in ext_data: | |
| 1197 rsm = ext_data['rsm'] | |
| 1198 maxItems = rsm.max | |
| 1199 if rsm.index is not None: | |
|
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1200 # We need to know the item_id of corresponding to the index (offset) of the current query |
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1201 # so we execute the query to look for the item_id |
| 318 | 1202 tmp_query = query[:] |
| 1203 tmp_args = args[:] | |
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1204 tmp_query[0] = "SELECT item_id" |
| 318 | 1205 tmp_query.append("{} LIMIT 1 OFFSET %s".format(query_order)) |
| 1206 tmp_args.append(rsm.index) | |
| 1207 cursor.execute(' '.join(query), args) | |
| 1208 # FIXME: bad index is not managed yet | |
|
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1209 item_id = cursor.fetchall()[0][0] |
| 318 | 1210 |
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1211 # now that we have the id, we can use it |
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1212 query.append("AND item_id<=%s") |
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1213 args.append(item_id) |
| 278 | 1214 elif rsm.before is not None: |
| 1215 if rsm.before != '': | |
|
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1216 query.insert(0,"SELECT * from (") |
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1217 query[1] += f",row_number() OVER ({query_order}) as row_number" |
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1218 query.append(f"{query_order}) as x") |
|
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1219 query.append( |
| 456 | 1220 "WHERE row_number<(SELECT row_number FROM (SELECT row_number() " |
| 1221 f"OVER ({query_order}) as row_number,item" | |
|
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1222 ) |
| 456 | 1223 self._appendSourcesAndFilters( |
| 1224 query, args, authorized_groups, unrestricted, ext_data | |
| 1225 ) | |
| 1226 query.append(") as row_num_sub WHERE item=%s)") | |
| 1227 args.append(rsm.before) | |
| 451 | 1228 # we need to reverse order in a first query to get the right |
| 1229 # items | |
| 1230 query.insert(0,"SELECT * from (") | |
| 1231 query.append(self.getOrderBy(ext_data, direction='DESC')) | |
| 1232 query.append("LIMIT %s) as x") | |
| 1233 if maxItems is None: | |
| 1234 # we default to 10 max when we request last page | |
| 1235 log.msg( | |
| 1236 "WARNING: getting last page with RSM without max, " | |
| 1237 "we default to max=10" | |
| 1238 ) | |
| 1239 args.append(10) | |
| 1240 else: | |
| 318 | 1241 args.append(maxItems) |
| 278 | 1242 elif rsm.after: |
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1243 query.insert(0,"SELECT * from (") |
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1244 query[1] += f",row_number() OVER ({query_order}) as row_number" |
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1245 query.append(f"{query_order}) as x") |
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1246 query.append( |
| 456 | 1247 "WHERE row_number>(SELECT row_number FROM (SELECT row_number() " |
| 1248 f"OVER ({query_order}) as row_number,item" | |
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1249 ) |
| 456 | 1250 self._appendSourcesAndFilters( |
| 1251 query, args, authorized_groups, unrestricted, ext_data | |
| 1252 ) | |
| 1253 query.append(") as row_num_sub WHERE item=%s)") | |
| 1254 args.append(rsm.after) | |
| 451 | 1255 else: |
| 1256 rsm = False | |
| 278 | 1257 |
| 318 | 1258 query.append(query_order) |
| 278 | 1259 |
|
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1260 if maxItems is not None: |
| 451 | 1261 if rsm == False: |
| 1262 # if we have legacy maxItems (i.e. not RSM max), we need to | |
| 1263 # reverse order (maxItems get last items, cf. | |
| 1264 # https://xmpp.org/extensions/xep-0060.html#subscriber-retrieve-requestrecent) | |
| 1265 # in a first query to get the right items | |
| 1266 query.insert(0,"SELECT * from (") | |
| 1267 query.insert(len(query)-1, self.getOrderBy(ext_data, direction='DESC')) | |
| 1268 query.insert(len(query)-1, "LIMIT %s) as x") | |
| 1269 args.append(maxItems) | |
| 1270 else: | |
| 1271 query.append("LIMIT %s") | |
| 1272 args.append(maxItems) | |
|
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1273 |
|
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1274 cursor.execute(' '.join(query), args) |
|
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1275 |
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1276 result = cursor.fetchall() |
| 346 | 1277 if unrestricted and not ids_only: |
| 318 | 1278 # with unrestricted query, we need to fill the access_list for a roster access items |
|
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1279 ret = [] |
|
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1280 for item_data in result: |
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1281 item = generic.stripNamespace(parseXml(item_data.data)) |
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1282 access_model = item_data.access_model |
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1283 item_id = item_data.item_id |
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1284 created = item_data.created |
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1285 updated = item_data.updated |
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1286 access_list = {} |
|
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1287 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
|
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1288 cursor.execute('SELECT groupname FROM item_groups_authorized WHERE item_id=%s', (item_id,)) |
|
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1289 access_list[const.OPT_ROSTER_GROUPS_ALLOWED] = [r.groupname for r in cursor.fetchall()] |
|
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1290 |
|
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1291 ret.append(container.ItemData(item, access_model, access_list, created=created, updated=updated)) |
|
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1292 # TODO: whitelist item access model |
|
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1293 return ret |
| 318 | 1294 |
| 346 | 1295 if ids_only: |
|
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1296 return [r.item for r in result] |
| 346 | 1297 else: |
|
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1298 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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1299 return items_data |
| 107 | 1300 |
|
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1301 def getItemsById(self, authorized_groups, unrestricted, itemIdentifiers): |
|
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1302 """Get items which are in the given list |
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1303 |
|
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1304 @param authorized_groups: we want to get items that these groups can access |
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1305 @param unrestricted: if true, don't check permissions |
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1306 @param itemIdentifiers: list of ids of the items we want to get |
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1307 @return: list of container.ItemData |
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1308 ItemData.config will contains access_list (managed as a dictionnary with same key as for item_config) |
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1309 if unrestricted is False, access_model and config will be None |
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1310 """ |
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1311 return self.dbpool.runInteraction(self._getItemsById, authorized_groups, unrestricted, itemIdentifiers) |
|
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1312 |
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1313 def _getItemsById(self, cursor, authorized_groups, unrestricted, itemIdentifiers): |
|
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1314 self._checkNodeExists(cursor) |
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1315 ret = [] |
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1316 if unrestricted: #we get everything without checking permissions |
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1317 for itemIdentifier in itemIdentifiers: |
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1318 cursor.execute("""SELECT data::text,items.access_model,item_id,created,updated FROM nodes |
|
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1319 INNER JOIN items USING (node_id) |
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1320 WHERE node_id=%s AND item=%s""", |
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1321 (self.nodeDbId, |
|
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1322 itemIdentifier)) |
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1323 result = cursor.fetchone() |
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1324 if not result: |
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1325 raise error.ItemNotFound() |
| 107 | 1326 |
|
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1327 item = generic.stripNamespace(parseXml(result[0])) |
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1328 access_model = result[1] |
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1329 item_id = result[2] |
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1330 created= result[3] |
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1331 updated= result[4] |
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1332 access_list = {} |
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1333 if access_model == const.VAL_AMODEL_PUBLISHER_ROSTER: |
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1334 cursor.execute('SELECT groupname FROM item_groups_authorized WHERE item_id=%s', (item_id,)) |
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1335 access_list[const.OPT_ROSTER_GROUPS_ALLOWED] = [r[0] for r in cursor.fetchall()] |
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1336 #TODO: WHITELIST access_model |
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1337 |
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1338 ret.append(container.ItemData(item, access_model, access_list, created=created, updated=updated)) |
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1339 else: #we check permission before returning items |
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1340 for itemIdentifier in itemIdentifiers: |
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1341 args = [self.nodeDbId, itemIdentifier] |
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1342 if authorized_groups: |
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1343 args.append(authorized_groups) |
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1344 cursor.execute("""SELECT data::text, created, updated FROM nodes |
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1345 INNER JOIN items USING (node_id) |
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1346 LEFT JOIN item_groups_authorized USING (item_id) |
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1347 WHERE node_id=%s AND item=%s AND |
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1348 (items.access_model='open' """ + |
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1349 ("or (items.access_model='roster' and groupname in %s)" if authorized_groups else '') + ")", |
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1350 args) |
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1351 |
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1352 result = cursor.fetchone() |
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1353 if result: |
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1354 ret.append(container.ItemData(generic.stripNamespace(parseXml(result[0])), created=result[1], updated=result[2])) |
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1355 |
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1356 return ret |
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1357 |
| 318 | 1358 def getItemsCount(self, authorized_groups, unrestricted, ext_data=None): |
| 1359 """Count expected number of items in a getItems query | |
| 1360 | |
| 1361 @param authorized_groups: we want to get items that these groups can access | |
| 1362 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1363 @param ext_data: options for extra features like RSM and MAM | |
| 1364 """ | |
| 1365 if ext_data is None: | |
| 1366 ext_data = {} | |
| 1367 return self.dbpool.runInteraction(self._getItemsCount, authorized_groups, unrestricted, ext_data) | |
| 1368 | |
| 1369 def _getItemsCount(self, cursor, authorized_groups, unrestricted, ext_data): | |
| 1370 self._checkNodeExists(cursor) | |
| 1371 args = [] | |
| 1372 | |
| 1373 # SELECT | |
| 1374 query = ["SELECT count(1)"] | |
| 1375 | |
| 1376 self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 1377 | |
| 1378 cursor.execute(' '.join(query), args) | |
| 1379 return cursor.fetchall()[0][0] | |
| 1380 | |
| 1381 def getItemsIndex(self, item_id, authorized_groups, unrestricted, ext_data=None): | |
| 1382 """Get expected index of first item in the window of a getItems query | |
| 1383 | |
| 1384 @param item_id: id of the item | |
| 1385 @param authorized_groups: we want to get items that these groups can access | |
| 1386 @param unrestricted: if true, don't check permissions (i.e.: get all items) | |
| 1387 @param ext_data: options for extra features like RSM and MAM | |
| 1388 """ | |
| 1389 if ext_data is None: | |
| 1390 ext_data = {} | |
| 1391 return self.dbpool.runInteraction(self._getItemsIndex, item_id, authorized_groups, unrestricted, ext_data) | |
| 1392 | |
| 1393 def _getItemsIndex(self, cursor, item_id, authorized_groups, unrestricted, ext_data): | |
| 1394 self._checkNodeExists(cursor) | |
| 1395 args = [] | |
| 1396 | |
| 1397 # SELECT | |
| 1398 query = [] | |
| 1399 | |
| 1400 query_order = self._appendSourcesAndFilters(query, args, authorized_groups, unrestricted, ext_data) | |
| 1401 | |
| 1402 query_select = "SELECT row_number from (SELECT row_number() OVER ({}), item".format(query_order) | |
| 1403 query.insert(0, query_select) | |
| 1404 query.append(") as x WHERE item=%s") | |
| 1405 args.append(item_id) | |
| 1406 | |
| 1407 cursor.execute(' '.join(query), args) | |
| 1408 # XXX: row_number start at 1, but we want that index start at 0 | |
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1409 try: |
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1410 return cursor.fetchall()[0][0] - 1 |
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1411 except IndexError: |
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1412 raise error.NodeNotFound() |
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1413 |
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1414 def getItemsPublishers(self, itemIdentifiers): |
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1415 """Get the publishers for all given identifiers |
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1416 |
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1417 @return (dict[unicode, jid.JID]): map of itemIdentifiers to publisher |
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1418 if item is not found, key is skipped in resulting dict |
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1419 """ |
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1420 return self.dbpool.runInteraction(self._getItemsPublishers, itemIdentifiers) |
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1421 |
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1422 def _getItemsPublishers(self, cursor, itemIdentifiers): |
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1423 self._checkNodeExists(cursor) |
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1424 ret = {} |
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1425 for itemIdentifier in itemIdentifiers: |
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1426 cursor.execute("""SELECT publisher FROM items |
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1427 WHERE node_id=%s AND item=%s""", |
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1428 (self.nodeDbId, itemIdentifier,)) |
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1429 result = cursor.fetchone() |
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1430 if result: |
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1431 ret[itemIdentifier] = jid.JID(result[0]) |
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1432 return ret |
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1433 |
| 107 | 1434 def purge(self): |
|
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1435 return self.dbpool.runInteraction(self._purge) |
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1436 |
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1437 def _purge(self, cursor): |
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1438 self._checkNodeExists(cursor) |
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1439 |
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1440 cursor.execute("""DELETE FROM items WHERE |
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1441 node_id=%s""", |
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1442 (self.nodeDbId,)) |
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1443 |
|
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1444 |
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1445 class CollectionNode(Node): |
|
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1446 |
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1447 nodeType = 'collection' |