Mercurial > libervia-pubsub
annotate idavoll/pgsql_backend.py @ 59:0fa161c00ed9
Use jid.JIDs everywhere in the backend.
Fix subscription list retrieval in pgsql_backend, thereby actually making
notifications work.
author | Ralph Meijer <ralphm@ik.nu> |
---|---|
date | Sat, 06 Nov 2004 17:07:47 +0000 |
parents | 7c4dfef5d964 |
children | 8cdbc27c467a |
rev | line source |
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28 | 1 from twisted.application import service |
2 from twisted.internet import defer | |
3 from twisted.protocols.jabber import jid | |
4 from twisted.enterprise import adbapi | |
5 import backend | |
6 | |
41
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7 class Storage: |
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8 def __init__(self, user, database): |
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9 self.dbpool = adbapi.ConnectionPool('pyPgSQL.PgSQL', user=user, |
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10 database=database) |
28 | 11 |
51 | 12 def _check_node_exists(self, cursor, node_id): |
13 cursor.execute("""SELECT id FROM nodes WHERE node=%s""", | |
14 (node_id.encode('utf8'))) | |
15 if not cursor.fetchone(): | |
16 raise backend.NodeNotFound | |
17 else: | |
18 return | |
19 | |
41
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20 def _get_node_configuration(self, cursor, node_id): |
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21 configuration = {} |
28 | 22 cursor.execute("""SELECT persistent, deliver_payload FROM nodes |
23 WHERE node=%s""", | |
24 (node_id,)) | |
25 try: | |
41
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26 (configuration["persist_items"], |
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27 configuration["deliver_payloads"]) = cursor.fetchone() |
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28 return configuration |
28 | 29 except TypeError: |
30 raise backend.NodeNotFound | |
31 | |
41
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32 def get_node_configuration(self, node_id): |
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33 return self.dbpool.runInteraction(self._get_node_configuration, node_id) |
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34 |
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35 def _get_affiliation(self, cursor, node_id, entity): |
51 | 36 self._check_node_exists(cursor, node_id) |
41
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37 cursor.execute("""SELECT affiliation FROM affiliations |
28 | 38 JOIN nodes ON (node_id=nodes.id) |
39 JOIN entities ON (entity_id=entities.id) | |
41
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40 WHERE node=%s AND jid=%s""", |
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41 (node_id.encode('utf8'), |
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42 entity.full().encode('utf8'))) |
41
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43 |
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44 try: |
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45 return cursor.fetchone()[0] |
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46 except TypeError: |
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47 return None |
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48 |
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49 def get_affiliation(self, node_id, entity): |
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50 return self.dbpool.runInteraction(self._get_affiliation, node_id, |
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51 entity) |
28 | 52 |
41
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53 def get_subscribers(self, node_id): |
59
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54 d = self.dbpool.runInteraction(self._get_subscribers, node_id) |
41
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55 d.addCallback(self._convert_to_jids) |
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56 return d |
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57 |
59
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58 def _get_subscribers(self, cursor,node_id): |
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59 self._check_node_exists(cursor, node_id) |
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60 cursor.execute("""SELECT jid, resource FROM subscriptions |
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61 JOIN nodes ON (node_id=nodes.id) |
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62 JOIN entities ON (entity_id=entities.id) |
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63 WHERE node=%s AND |
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64 subscription='subscribed'""", |
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65 (node_id.encode('utf8'),)) |
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66 return cursor.fetchall() |
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67 |
41
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68 def _convert_to_jids(self, list): |
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69 return [jid.JID("%s/%s" % (l[0], l[1])).full() for l in list] |
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70 |
43
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71 def store_items(self, node_id, items, publisher): |
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72 return self.dbpool.runInteraction(self._store_items, node_id, items, |
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73 publisher) |
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74 |
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75 def _store_items(self, cursor, node_id, items, publisher): |
51 | 76 self._check_node_exists(cursor, node_id) |
43
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77 for item in items: |
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78 self._store_item(cursor, node_id, item, publisher) |
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79 |
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80 def _store_item(self, cursor, node_id, item, publisher): |
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81 data = item.toXml() |
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82 cursor.execute("""UPDATE items SET publisher=%s, data=%s |
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83 FROM nodes |
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84 WHERE nodes.id = items.node_id AND |
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85 nodes.node = %s and items.item=%s""", |
59
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86 (publisher.full().encode('utf8'), |
43
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87 data.encode('utf8'), |
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88 node_id.encode('utf8'), |
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89 item["id"].encode('utf8'))) |
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90 if cursor.rowcount == 1: |
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91 return |
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92 |
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93 cursor.execute("""INSERT INTO items (node_id, item, publisher, data) |
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94 SELECT id, %s, %s, %s FROM nodes WHERE node=%s""", |
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95 (item["id"].encode('utf8'), |
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96 publisher.full().encode('utf8'), |
43
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97 data.encode('utf8'), |
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98 node_id.encode('utf8'))) |
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99 |
51 | 100 def add_subscription(self, node_id, subscriber, state): |
101 return self.dbpool.runInteraction(self._add_subscription, node_id, | |
102 subscriber, state) | |
103 | |
104 def _add_subscription(self, cursor, node_id, subscriber, state): | |
105 self._check_node_exists(cursor, node_id) | |
106 userhost = subscriber.userhost() | |
107 resource = subscriber.resource or '' | |
108 | |
109 try: | |
110 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", | |
111 (userhost.encode('utf8'))) | |
112 except: | |
113 pass | |
114 | |
115 try: | |
116 cursor.execute("""INSERT INTO subscriptions | |
117 (node_id, entity_id, resource, subscription) | |
118 SELECT n.id, e.id, %s, %s FROM | |
119 (SELECT id FROM nodes WHERE node=%s) AS n | |
120 CROSS JOIN | |
121 (SELECT id FROM entities WHERE jid=%s) AS e""", | |
122 (resource.encode('utf8'), | |
123 state.encode('utf8'), | |
124 node_id.encode('utf8'), | |
125 userhost.encode('utf8'))) | |
126 except: | |
127 cursor.execute("""SELECT subscription FROM subscriptions | |
128 JOIN nodes ON (nodes.id=subscriptions.node_id) | |
129 JOIN entities ON | |
130 (entities.id=subscriptions.entity_id) | |
131 WHERE node=%s AND jid=%s AND resource=%s""", | |
132 (node_id.encode('utf8'), | |
133 userhost.encode('utf8'), | |
134 resource.encode('utf8'))) | |
135 state = cursor.fetchone()[0] | |
136 | |
137 return {'node': node_id, | |
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138 'jid': subscriber, |
51 | 139 'subscription': state} |
140 | |
141 def remove_subscription(self, node_id, subscriber): | |
142 return self.dbpool.runInteraction(self._remove_subscription, node_id, | |
143 subscriber) | |
144 | |
145 def _remove_subscription(self, cursor, node_id, subscriber): | |
146 self._check_node_exists(cursor, node_id) | |
147 userhost = subscriber.userhost() | |
148 resource = subscriber.resource or '' | |
149 | |
150 cursor.execute("""DELETE FROM subscriptions WHERE | |
151 node_id=(SELECT id FROM nodes WHERE node=%s) AND | |
152 entity_id=(SELECT id FROM entities WHERE jid=%s) | |
153 AND resource=%s""", | |
154 (node_id.encode('utf8'), | |
155 userhost.encode('utf8'), | |
156 resource.encode('utf8'))) | |
157 if cursor.rowcount != 1: | |
158 raise backend.NotSubscribed | |
159 | |
160 return None | |
161 | |
55
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162 def create_node(self, node_id, owner): |
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163 return self.dbpool.runInteraction(self._create_node, node_id, |
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164 owner) |
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165 |
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166 def _create_node(self, cursor, node_id, owner): |
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167 try: |
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168 cursor.execute("""INSERT INTO nodes (node) VALUES (%s)""", |
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169 (node_id.encode('utf8'))) |
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170 except: |
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171 raise backend.NodeExists |
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172 |
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173 cursor.execute("""SELECT 1 from entities where jid=%s""", |
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174 (owner.full().encode('utf8'))) |
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175 |
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176 if not cursor.fetchone(): |
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177 cursor.execute("""INSERT INTO entities (jid) VALUES (%s)""", |
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178 (owner.full().encode('utf8'))) |
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179 |
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180 try: |
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181 cursor.execute("""INSERT INTO affiliations |
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182 (node_id, entity_id, affiliation) |
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183 SELECT n.id, e.id, 'owner' FROM |
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184 (SELECT id FROM nodes WHERE node=%s) AS n |
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185 CROSS JOIN |
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186 (SELECT id FROM entities WHERE jid=%s) AS e""", |
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187 (node_id.encode('utf8'), |
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188 owner.full().encode('utf8'))) |
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189 except Exception, e: |
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190 print e |
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191 |
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192 return None |
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193 |
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194 |
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195 class BackendService(backend.BackendService): |
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196 """ PostgreSQL backend Service for a JEP-0060 pubsub service """ |
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197 |
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198 class NodeCreationService(backend.NodeCreationService): |
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199 pass |
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200 |
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201 class PublishService(backend.PublishService): |
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202 pass |
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203 |
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204 class NotificationService(backend.NotificationService): |
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205 pass |
51 | 206 |
207 class SubscriptionService(backend.SubscriptionService): | |
208 pass |