Mercurial > libervia-pubsub
annotate idavoll/pgsql_storage.py @ 191:48245777acea
Return proper HTTP status codes on failed un-/subscription.
author | Ralph Meijer <ralphm@ik.nu> |
---|---|
date | Sat, 17 May 2008 18:31:31 +0000 |
parents | 0d4474051eeb |
children | e404775b12df |
rev | line source |
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1 # Copyright (c) 2003-2008 Ralph Meijer |
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2 # See LICENSE for details. |
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3 |
107 | 4 import copy |
5 from twisted.enterprise import adbapi | |
6 from twisted.words.protocols.jabber import jid | |
7 from zope.interface import implements | |
8 | |
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9 from idavoll import error, iidavoll |
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10 |
107 | 11 class Storage: |
12 | |
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13 implements(iidavoll.IStorage) |
107 | 14 |
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15 def __init__(self, user, database, password=None, host=None, port=None): |
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16 self._dbpool = adbapi.ConnectionPool('pyPgSQL.PgSQL', |
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17 user=user, |
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18 password=password, |
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19 database=database, |
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20 host=host, |
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21 port=port, |
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22 cp_reconnect=True, |
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23 client_encoding='utf-8' |
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24 ) |
107 | 25 |
26 def get_node(self, node_id): | |
27 return self._dbpool.runInteraction(self._get_node, node_id) | |
28 | |
29 def _get_node(self, cursor, node_id): | |
30 configuration = {} | |
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31 cursor.execute("""SELECT persistent, deliver_payload, |
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32 send_last_published_item |
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33 FROM nodes |
107 | 34 WHERE node=%s""", |
35 (node_id,)) | |
36 try: | |
37 (configuration["pubsub#persist_items"], | |
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38 configuration["pubsub#deliver_payloads"], |
181 | 39 configuration["pubsub#send_last_published_item"]) = \ |
180
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40 cursor.fetchone() |
107 | 41 except TypeError: |
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42 raise error.NodeNotFound() |
107 | 43 else: |
44 node = LeafNode(node_id, configuration) | |
45 node._dbpool = self._dbpool | |
46 return node | |
47 | |
48 def get_node_ids(self): | |
49 d = self._dbpool.runQuery("""SELECT node from nodes""") | |
50 d.addCallback(lambda results: [r[0] for r in results]) | |
51 return d | |
52 | |
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53 def create_node(self, node_id, owner, config=None): |
107 | 54 return self._dbpool.runInteraction(self._create_node, node_id, owner) |
55 | |
56 def _create_node(self, cursor, node_id, owner): | |
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57 node_id = node_id |
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58 owner = owner.userhost() |
107 | 59 try: |
60 cursor.execute("""INSERT INTO nodes (node) VALUES (%s)""", | |
113 | 61 (node_id)) |
62 except cursor._pool.dbapi.OperationalError: | |
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63 raise error.NodeExists() |
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64 |
107 | 65 cursor.execute("""SELECT 1 from entities where jid=%s""", |
113 | 66 (owner)) |
107 | 67 |
68 if not cursor.fetchone(): | |
69 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", | |
113 | 70 (owner)) |
107 | 71 |
72 cursor.execute("""INSERT INTO affiliations | |
73 (node_id, entity_id, affiliation) | |
74 SELECT n.id, e.id, 'owner' FROM | |
75 (SELECT id FROM nodes WHERE node=%s) AS n | |
76 CROSS JOIN | |
77 (SELECT id FROM entities WHERE jid=%s) AS e""", | |
113 | 78 (node_id, owner)) |
107 | 79 |
80 def delete_node(self, node_id): | |
81 return self._dbpool.runInteraction(self._delete_node, node_id) | |
82 | |
83 def _delete_node(self, cursor, node_id): | |
84 cursor.execute("""DELETE FROM nodes WHERE node=%s""", | |
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85 (node_id,)) |
107 | 86 |
87 if cursor.rowcount != 1: | |
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88 raise error.NodeNotFound() |
107 | 89 |
90 def get_affiliations(self, entity): | |
91 d = self._dbpool.runQuery("""SELECT node, affiliation FROM entities | |
92 JOIN affiliations ON | |
93 (affiliations.entity_id=entities.id) | |
94 JOIN nodes ON | |
95 (nodes.id=affiliations.node_id) | |
96 WHERE jid=%s""", | |
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97 (entity.userhost(),)) |
107 | 98 d.addCallback(lambda results: [tuple(r) for r in results]) |
99 return d | |
100 | |
101 def get_subscriptions(self, entity): | |
102 d = self._dbpool.runQuery("""SELECT node, jid, resource, subscription | |
103 FROM entities JOIN subscriptions ON | |
104 (subscriptions.entity_id=entities.id) | |
105 JOIN nodes ON | |
106 (nodes.id=subscriptions.node_id) | |
107 WHERE jid=%s""", | |
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108 (entity.userhost(),)) |
107 | 109 d.addCallback(self._convert_subscription_jids) |
110 return d | |
111 | |
112 def _convert_subscription_jids(self, subscriptions): | |
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113 return [(node, |
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114 jid.internJID('%s/%s' % (subscriber, resource)), |
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115 subscription) |
107 | 116 for node, subscriber, resource, subscription in subscriptions] |
117 | |
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118 |
107 | 119 class Node: |
120 | |
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121 implements(iidavoll.INode) |
107 | 122 |
123 def __init__(self, node_id, config): | |
124 self.id = node_id | |
125 self._config = config | |
126 | |
121
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127 def _check_node_exists(self, cursor): |
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128 cursor.execute("""SELECT id FROM nodes WHERE node=%s""", |
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129 (self.id)) |
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130 if not cursor.fetchone(): |
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131 raise error.NodeNotFound() |
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132 |
107 | 133 def get_type(self): |
134 return self.type | |
135 | |
136 def get_configuration(self): | |
137 return self._config | |
138 | |
139 def set_configuration(self, options): | |
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140 config = copy.copy(self._config) |
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141 |
107 | 142 for option in options: |
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143 if option in config: |
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144 config[option] = options[option] |
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145 |
124
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146 d = self._dbpool.runInteraction(self._set_configuration, config) |
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147 d.addCallback(self._set_cached_configuration, config) |
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148 return d |
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149 |
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150 def _set_configuration(self, cursor, config): |
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151 self._check_node_exists(cursor) |
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152 cursor.execute("""UPDATE nodes SET persistent=%s, deliver_payload=%s, |
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153 send_last_published_item=%s |
107 | 154 WHERE node=%s""", |
121
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155 (config["pubsub#persist_items"], |
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156 config["pubsub#deliver_payloads"], |
180
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157 config["pubsub#send_last_published_item"], |
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158 self.id)) |
107 | 159 |
124
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160 def _set_cached_configuration(self, void, config): |
121
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161 self._config = config |
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162 |
107 | 163 def get_meta_data(self): |
164 config = copy.copy(self._config) | |
165 config["pubsub#node_type"] = self.type | |
166 return config | |
167 | |
168 def get_affiliation(self, entity): | |
169 return self._dbpool.runInteraction(self._get_affiliation, entity) | |
170 | |
171 def _get_affiliation(self, cursor, entity): | |
121
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172 self._check_node_exists(cursor) |
107 | 173 cursor.execute("""SELECT affiliation FROM affiliations |
174 JOIN nodes ON (node_id=nodes.id) | |
175 JOIN entities ON (entity_id=entities.id) | |
176 WHERE node=%s AND jid=%s""", | |
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177 (self.id, |
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178 entity.userhost())) |
107 | 179 |
180 try: | |
181 return cursor.fetchone()[0] | |
182 except TypeError: | |
183 return None | |
184 | |
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185 def get_subscription(self, subscriber): |
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186 return self._dbpool.runInteraction(self._get_subscription, subscriber) |
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187 |
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188 def _get_subscription(self, cursor, subscriber): |
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189 self._check_node_exists(cursor) |
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190 |
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191 userhost = subscriber.userhost() |
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192 resource = subscriber.resource or '' |
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193 |
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194 cursor.execute("""SELECT subscription FROM subscriptions |
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195 JOIN nodes ON (nodes.id=subscriptions.node_id) |
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196 JOIN entities ON |
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197 (entities.id=subscriptions.entity_id) |
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198 WHERE node=%s AND jid=%s AND resource=%s""", |
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199 (self.id, |
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200 userhost, |
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201 resource)) |
121
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202 try: |
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203 return cursor.fetchone()[0] |
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204 except TypeError: |
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205 return None |
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206 |
107 | 207 def add_subscription(self, subscriber, state): |
208 return self._dbpool.runInteraction(self._add_subscription, subscriber, | |
209 state) | |
210 | |
211 def _add_subscription(self, cursor, subscriber, state): | |
121
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212 self._check_node_exists(cursor) |
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213 |
107 | 214 userhost = subscriber.userhost() |
215 resource = subscriber.resource or '' | |
216 | |
217 try: | |
218 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", | |
136
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219 (userhost)) |
113 | 220 except cursor._pool.dbapi.OperationalError: |
107 | 221 pass |
222 | |
223 try: | |
224 cursor.execute("""INSERT INTO subscriptions | |
225 (node_id, entity_id, resource, subscription) | |
226 SELECT n.id, e.id, %s, %s FROM | |
227 (SELECT id FROM nodes WHERE node=%s) AS n | |
228 CROSS JOIN | |
229 (SELECT id FROM entities WHERE jid=%s) AS e""", | |
136
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230 (resource, |
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231 state, |
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232 self.id, |
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233 userhost)) |
113 | 234 except cursor._pool.dbapi.OperationalError: |
167
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235 raise error.SubscriptionExists() |
121
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236 |
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237 def remove_subscription(self, subscriber): |
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238 return self._dbpool.runInteraction(self._remove_subscription, |
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239 subscriber) |
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240 |
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241 def _remove_subscription(self, cursor, subscriber): |
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242 self._check_node_exists(cursor) |
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243 |
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244 userhost = subscriber.userhost() |
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245 resource = subscriber.resource or '' |
107 | 246 |
121
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247 cursor.execute("""DELETE FROM subscriptions WHERE |
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248 node_id=(SELECT id FROM nodes WHERE node=%s) AND |
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249 entity_id=(SELECT id FROM entities WHERE jid=%s) |
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250 AND resource=%s""", |
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251 (self.id, |
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252 userhost, |
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253 resource)) |
121
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254 if cursor.rowcount != 1: |
171
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255 raise error.NotSubscribed() |
107 | 256 |
121
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257 return None |
107 | 258 |
259 def get_subscribers(self): | |
121
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260 d = self._dbpool.runInteraction(self._get_subscribers) |
107 | 261 d.addCallback(self._convert_to_jids) |
262 return d | |
263 | |
121
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264 def _get_subscribers(self, cursor): |
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265 self._check_node_exists(cursor) |
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266 cursor.execute("""SELECT jid, resource FROM subscriptions |
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267 JOIN nodes ON (node_id=nodes.id) |
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268 JOIN entities ON (entity_id=entities.id) |
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269 WHERE node=%s AND |
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270 subscription='subscribed'""", |
136
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271 (self.id,)) |
121
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272 return cursor.fetchall() |
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273 |
107 | 274 def _convert_to_jids(self, list): |
148
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275 return [jid.internJID("%s/%s" % (l[0], l[1])) for l in list] |
107 | 276 |
146
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277 def is_subscribed(self, entity): |
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278 return self._dbpool.runInteraction(self._is_subscribed, entity) |
121
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279 |
146
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280 def _is_subscribed(self, cursor, entity): |
121
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281 self._check_node_exists(cursor) |
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282 |
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283 cursor.execute("""SELECT 1 FROM entities |
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284 JOIN subscriptions ON |
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285 (entities.id=subscriptions.entity_id) |
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286 JOIN nodes ON |
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287 (nodes.id=subscriptions.node_id) |
146
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288 WHERE entities.jid=%s |
121
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289 AND node=%s AND subscription='subscribed'""", |
146
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290 (entity.userhost(), |
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291 self.id)) |
121
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292 |
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293 return cursor.fetchone() is not None |
107 | 294 |
145
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295 def get_affiliations(self): |
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296 return self._dbpool.runInteraction(self._get_affiliations) |
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297 |
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298 def _get_affiliations(self, cursor): |
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299 self._check_node_exists(cursor) |
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300 |
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301 cursor.execute("""SELECT jid, affiliation FROM nodes |
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302 JOIN affiliations ON |
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303 (nodes.id = affiliations.node_id) |
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304 JOIN entities ON |
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305 (affiliations.entity_id = entities.id) |
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306 WHERE node=%s""", |
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307 self.id) |
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308 result = cursor.fetchall() |
180
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309 |
148
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310 return [(jid.internJID(r[0]), r[1]) for r in result] |
145
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311 |
146
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312 class LeafNodeMixin: |
107 | 313 |
314 type = 'leaf' | |
315 | |
316 def store_items(self, items, publisher): | |
121
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317 return self._dbpool.runInteraction(self._store_items, items, publisher) |
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318 |
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319 def _store_items(self, cursor, items, publisher): |
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320 self._check_node_exists(cursor) |
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321 for item in items: |
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322 self._store_item(cursor, item, publisher) |
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323 |
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324 def _store_item(self, cursor, item, publisher): |
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325 data = item.toXml() |
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326 cursor.execute("""UPDATE items SET date=now(), publisher=%s, data=%s |
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327 FROM nodes |
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328 WHERE nodes.id = items.node_id AND |
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329 nodes.node = %s and items.item=%s""", |
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330 (publisher.full(), |
127
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331 data, |
136
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332 self.id, |
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333 item["id"])) |
121
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334 if cursor.rowcount == 1: |
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335 return |
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336 |
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337 cursor.execute("""INSERT INTO items (node_id, item, publisher, data) |
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338 SELECT id, %s, %s, %s FROM nodes WHERE node=%s""", |
136
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339 (item["id"], |
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340 publisher.full(), |
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341 data, |
136
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342 self.id)) |
107 | 343 |
344 def remove_items(self, item_ids): | |
121
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345 return self._dbpool.runInteraction(self._remove_items, item_ids) |
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346 |
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347 def _remove_items(self, cursor, item_ids): |
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348 self._check_node_exists(cursor) |
180
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349 |
121
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350 deleted = [] |
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351 |
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352 for item_id in item_ids: |
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353 cursor.execute("""DELETE FROM items WHERE |
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354 node_id=(SELECT id FROM nodes WHERE node=%s) AND |
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355 item=%s""", |
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356 (self.id, |
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357 item_id)) |
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358 |
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359 if cursor.rowcount: |
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360 deleted.append(item_id) |
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361 |
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362 return deleted |
107 | 363 |
364 def get_items(self, max_items=None): | |
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365 return self._dbpool.runInteraction(self._get_items, max_items) |
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366 |
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367 def _get_items(self, cursor, max_items): |
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368 self._check_node_exists(cursor) |
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369 query = """SELECT data FROM nodes JOIN items ON |
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370 (nodes.id=items.node_id) |
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371 WHERE node=%s ORDER BY date DESC""" |
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372 if max_items: |
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373 cursor.execute(query + " LIMIT %s", |
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374 (self.id, |
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375 max_items)) |
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376 else: |
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377 cursor.execute(query, (self.id)) |
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378 |
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379 result = cursor.fetchall() |
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380 return [unicode(r[0], 'utf-8') for r in result] |
107 | 381 |
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382 def get_items_by_id(self, item_ids): |
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383 return self._dbpool.runInteraction(self._get_items_by_id, item_ids) |
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384 |
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385 def _get_items_by_id(self, cursor, item_ids): |
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386 self._check_node_exists(cursor) |
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387 items = [] |
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388 for item_id in item_ids: |
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389 cursor.execute("""SELECT data FROM nodes JOIN items ON |
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390 (nodes.id=items.node_id) |
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391 WHERE node=%s AND item=%s""", |
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392 (self.id, |
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393 item_id)) |
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394 result = cursor.fetchone() |
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395 if result: |
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396 items.append(unicode(result[0], 'utf-8')) |
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397 return items |
107 | 398 |
399 def purge(self): | |
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400 return self._dbpool.runInteraction(self._purge) |
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401 |
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402 def _purge(self, cursor): |
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403 self._check_node_exists(cursor) |
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404 |
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405 cursor.execute("""DELETE FROM items WHERE |
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406 node_id=(SELECT id FROM nodes WHERE node=%s)""", |
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407 (self.id,)) |
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408 |
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409 class LeafNode(Node, LeafNodeMixin): |
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410 |
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411 implements(iidavoll.ILeafNode) |