744 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			744 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			Python
		
	
	
| # -*- coding: utf-8 -*-
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| # Copyright 2017 Vector Creations Ltd
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| #
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| # Licensed under the Apache License, Version 2.0 (the "License");
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| # you may not use this file except in compliance with the License.
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| # You may obtain a copy of the License at
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| #
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| #     http://www.apache.org/licenses/LICENSE-2.0
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| #
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| # Unless required by applicable law or agreed to in writing, software
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| # distributed under the License is distributed on an "AS IS" BASIS,
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| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| # See the License for the specific language governing permissions and
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| # limitations under the License.
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| 
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| from twisted.internet import defer
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| 
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| from ._base import SQLBaseStore
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| 
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| from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
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| from synapse.api.constants import EventTypes, JoinRules
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| from synapse.storage.engines import PostgresEngine, Sqlite3Engine
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| from synapse.types import get_domain_from_id, get_localpart_from_id
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| 
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| import re
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| import logging
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| 
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| logger = logging.getLogger(__name__)
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| 
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| 
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| class UserDirectoryStore(SQLBaseStore):
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|     @cachedInlineCallbacks(cache_context=True)
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|     def is_room_world_readable_or_publicly_joinable(self, room_id, cache_context):
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|         """Check if the room is either world_readable or publically joinable
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|         """
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|         current_state_ids = yield self.get_current_state_ids(
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|             room_id, on_invalidate=cache_context.invalidate
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|         )
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| 
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|         join_rules_id = current_state_ids.get((EventTypes.JoinRules, ""))
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|         if join_rules_id:
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|             join_rule_ev = yield self.get_event(join_rules_id, allow_none=True)
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|             if join_rule_ev:
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|                 if join_rule_ev.content.get("join_rule") == JoinRules.PUBLIC:
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|                     defer.returnValue(True)
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| 
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|         hist_vis_id = current_state_ids.get((EventTypes.RoomHistoryVisibility, ""))
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|         if hist_vis_id:
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|             hist_vis_ev = yield self.get_event(hist_vis_id, allow_none=True)
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|             if hist_vis_ev:
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|                 if hist_vis_ev.content.get("history_visibility") == "world_readable":
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|                     defer.returnValue(True)
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| 
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|         defer.returnValue(False)
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| 
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|     @defer.inlineCallbacks
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|     def add_users_to_public_room(self, room_id, user_ids):
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|         """Add user to the list of users in public rooms
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| 
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|         Args:
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|             room_id (str): A room_id that all users are in that is world_readable
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|                 or publically joinable
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|             user_ids (list(str)): Users to add
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|         """
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|         yield self._simple_insert_many(
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|             table="users_in_pubic_room",
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|             values=[
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|                 {
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|                     "user_id": user_id,
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|                     "room_id": room_id,
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|                 }
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|                 for user_id in user_ids
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|             ],
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|             desc="add_users_to_public_room"
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|         )
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|         for user_id in user_ids:
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|             self.get_user_in_public_room.invalidate((user_id,))
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| 
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|     def add_profiles_to_user_dir(self, room_id, users_with_profile):
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|         """Add profiles to the user directory
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| 
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|         Args:
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|             room_id (str): A room_id that all users are joined to
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|             users_with_profile (dict): Users to add to directory in the form of
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|                 mapping of user_id -> ProfileInfo
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|         """
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|         if isinstance(self.database_engine, PostgresEngine):
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|             # We weight the loclpart most highly, then display name and finally
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|             # server name
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|             sql = """
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|                 INSERT INTO user_directory_search(user_id, vector)
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|                 VALUES (?,
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|                     setweight(to_tsvector('english', ?), 'A')
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|                     || setweight(to_tsvector('english', ?), 'D')
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|                     || setweight(to_tsvector('english', COALESCE(?, '')), 'B')
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|                 )
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|             """
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|             args = (
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|                 (
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|                     user_id, get_localpart_from_id(user_id), get_domain_from_id(user_id),
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|                     profile.display_name,
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|                 )
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|                 for user_id, profile in users_with_profile.iteritems()
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|             )
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|         elif isinstance(self.database_engine, Sqlite3Engine):
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|             sql = """
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|                 INSERT INTO user_directory_search(user_id, value)
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|                 VALUES (?,?)
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|             """
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|             args = (
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|                 (
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|                     user_id,
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|                     "%s %s" % (user_id, p.display_name,) if p.display_name else user_id
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|                 )
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|                 for user_id, p in users_with_profile.iteritems()
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|             )
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|         else:
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|             # This should be unreachable.
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|             raise Exception("Unrecognized database engine")
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| 
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|         def _add_profiles_to_user_dir_txn(txn):
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|             txn.executemany(sql, args)
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|             self._simple_insert_many_txn(
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|                 txn,
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|                 table="user_directory",
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|                 values=[
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|                     {
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|                         "user_id": user_id,
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|                         "room_id": room_id,
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|                         "display_name": profile.display_name,
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|                         "avatar_url": profile.avatar_url,
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|                     }
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|                     for user_id, profile in users_with_profile.iteritems()
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|                 ]
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|             )
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|             for user_id in users_with_profile:
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|                 txn.call_after(
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|                     self.get_user_in_directory.invalidate, (user_id,)
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|                 )
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| 
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|         return self.runInteraction(
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|             "add_profiles_to_user_dir", _add_profiles_to_user_dir_txn
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|         )
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| 
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|     @defer.inlineCallbacks
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|     def update_user_in_user_dir(self, user_id, room_id):
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|         yield self._simple_update_one(
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|             table="user_directory",
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|             keyvalues={"user_id": user_id},
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|             updatevalues={"room_id": room_id},
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|             desc="update_user_in_user_dir",
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|         )
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|         self.get_user_in_directory.invalidate((user_id,))
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| 
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|     def update_profile_in_user_dir(self, user_id, display_name, avatar_url, room_id):
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|         def _update_profile_in_user_dir_txn(txn):
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|             new_entry = self._simple_upsert_txn(
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|                 txn,
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|                 table="user_directory",
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|                 keyvalues={"user_id": user_id},
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|                 insertion_values={"room_id": room_id},
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|                 values={"display_name": display_name, "avatar_url": avatar_url},
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|                 lock=False,  # We're only inserter
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|             )
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| 
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|             if isinstance(self.database_engine, PostgresEngine):
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|                 # We weight the loclpart most highly, then display name and finally
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|                 # server name
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|                 if new_entry:
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|                     sql = """
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|                         INSERT INTO user_directory_search(user_id, vector)
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|                         VALUES (?,
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|                             setweight(to_tsvector('english', ?), 'A')
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|                             || setweight(to_tsvector('english', ?), 'D')
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|                             || setweight(to_tsvector('english', COALESCE(?, '')), 'B')
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|                         )
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|                     """
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|                     txn.execute(
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|                         sql,
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|                         (
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|                             user_id, get_localpart_from_id(user_id),
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|                             get_domain_from_id(user_id), display_name,
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|                         )
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|                     )
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|                 else:
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|                     sql = """
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|                         UPDATE user_directory_search
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|                         SET vector = setweight(to_tsvector('english', ?), 'A')
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|                             || setweight(to_tsvector('english', ?), 'D')
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|                             || setweight(to_tsvector('english', COALESCE(?, '')), 'B')
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|                         WHERE user_id = ?
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|                     """
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|                     txn.execute(
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|                         sql,
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|                         (
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|                             get_localpart_from_id(user_id), get_domain_from_id(user_id),
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|                             display_name, user_id,
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|                         )
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|                     )
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|             elif isinstance(self.database_engine, Sqlite3Engine):
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|                 value = "%s %s" % (user_id, display_name,) if display_name else user_id
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|                 self._simple_upsert_txn(
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|                     txn,
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|                     table="user_directory_search",
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|                     keyvalues={"user_id": user_id},
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|                     values={"value": value},
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|                     lock=False,  # We're only inserter
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|                 )
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|             else:
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|                 # This should be unreachable.
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|                 raise Exception("Unrecognized database engine")
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| 
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|             txn.call_after(self.get_user_in_directory.invalidate, (user_id,))
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| 
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|         return self.runInteraction(
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|             "update_profile_in_user_dir", _update_profile_in_user_dir_txn
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|         )
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| 
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|     @defer.inlineCallbacks
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|     def update_user_in_public_user_list(self, user_id, room_id):
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|         yield self._simple_update_one(
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|             table="users_in_pubic_room",
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|             keyvalues={"user_id": user_id},
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|             updatevalues={"room_id": room_id},
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|             desc="update_user_in_public_user_list",
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|         )
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|         self.get_user_in_public_room.invalidate((user_id,))
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| 
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|     def remove_from_user_dir(self, user_id):
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|         def _remove_from_user_dir_txn(txn):
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|             self._simple_delete_txn(
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|                 txn,
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|                 table="user_directory",
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|                 keyvalues={"user_id": user_id},
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|             )
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|             self._simple_delete_txn(
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|                 txn,
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|                 table="user_directory_search",
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|                 keyvalues={"user_id": user_id},
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|             )
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|             self._simple_delete_txn(
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|                 txn,
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|                 table="users_in_pubic_room",
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|                 keyvalues={"user_id": user_id},
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|             )
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|             txn.call_after(
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|                 self.get_user_in_directory.invalidate, (user_id,)
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|             )
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|             txn.call_after(
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|                 self.get_user_in_public_room.invalidate, (user_id,)
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|             )
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|         return self.runInteraction(
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|             "remove_from_user_dir", _remove_from_user_dir_txn,
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|         )
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| 
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|     @defer.inlineCallbacks
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|     def remove_from_user_in_public_room(self, user_id):
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|         yield self._simple_delete(
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|             table="users_in_pubic_room",
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|             keyvalues={"user_id": user_id},
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|             desc="remove_from_user_in_public_room",
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|         )
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|         self.get_user_in_public_room.invalidate((user_id,))
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| 
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|     def get_users_in_public_due_to_room(self, room_id):
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|         """Get all user_ids that are in the room directory becuase they're
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|         in the given room_id
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|         """
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|         return self._simple_select_onecol(
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|             table="users_in_pubic_room",
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|             keyvalues={"room_id": room_id},
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|             retcol="user_id",
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|             desc="get_users_in_public_due_to_room",
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|         )
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| 
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|     @defer.inlineCallbacks
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|     def get_users_in_dir_due_to_room(self, room_id):
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|         """Get all user_ids that are in the room directory becuase they're
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|         in the given room_id
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|         """
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|         user_ids_dir = yield self._simple_select_onecol(
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|             table="user_directory",
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|             keyvalues={"room_id": room_id},
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|             retcol="user_id",
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|             desc="get_users_in_dir_due_to_room",
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|         )
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| 
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|         user_ids_pub = yield self._simple_select_onecol(
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|             table="users_in_pubic_room",
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|             keyvalues={"room_id": room_id},
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|             retcol="user_id",
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|             desc="get_users_in_dir_due_to_room",
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|         )
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| 
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|         user_ids_share = yield self._simple_select_onecol(
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|             table="users_who_share_rooms",
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|             keyvalues={"room_id": room_id},
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|             retcol="user_id",
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|             desc="get_users_in_dir_due_to_room",
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|         )
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| 
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|         user_ids = set(user_ids_dir)
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|         user_ids.update(user_ids_pub)
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|         user_ids.update(user_ids_share)
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| 
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|         defer.returnValue(user_ids)
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| 
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|     @defer.inlineCallbacks
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|     def get_all_rooms(self):
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|         """Get all room_ids we've ever known about, in ascending order of "size"
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|         """
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|         sql = """
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|             SELECT room_id FROM current_state_events
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|             GROUP BY room_id
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|             ORDER BY count(*) ASC
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|         """
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|         rows = yield self._execute("get_all_rooms", None, sql)
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|         defer.returnValue([room_id for room_id, in rows])
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| 
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|     def add_users_who_share_room(self, room_id, share_private, user_id_tuples):
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|         """Insert entries into the users_who_share_rooms table. The first
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|         user should be a local user.
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| 
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|         Args:
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|             room_id (str)
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|             share_private (bool): Is the room private
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|             user_id_tuples([(str, str)]): iterable of 2-tuple of user IDs.
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|         """
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|         def _add_users_who_share_room_txn(txn):
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|             self._simple_insert_many_txn(
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|                 txn,
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|                 table="users_who_share_rooms",
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|                 values=[
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|                     {
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|                         "user_id": user_id,
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|                         "other_user_id": other_user_id,
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|                         "room_id": room_id,
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|                         "share_private": share_private,
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|                     }
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|                     for user_id, other_user_id in user_id_tuples
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|                 ],
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|             )
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|             for user_id, other_user_id in user_id_tuples:
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|                 txn.call_after(
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|                     self.get_users_who_share_room_from_dir.invalidate,
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|                     (user_id,),
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|                 )
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|                 txn.call_after(
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|                     self.get_if_users_share_a_room.invalidate,
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|                     (user_id, other_user_id),
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|                 )
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|         return self.runInteraction(
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|             "add_users_who_share_room", _add_users_who_share_room_txn
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|         )
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| 
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|     def update_users_who_share_room(self, room_id, share_private, user_id_sets):
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|         """Updates entries in the users_who_share_rooms table. The first
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|         user should be a local user.
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| 
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|         Args:
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|             room_id (str)
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|             share_private (bool): Is the room private
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|             user_id_tuples([(str, str)]): iterable of 2-tuple of user IDs.
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|         """
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|         def _update_users_who_share_room_txn(txn):
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|             sql = """
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|                 UPDATE users_who_share_rooms
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|                 SET room_id = ?, share_private = ?
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|                 WHERE user_id = ? AND other_user_id = ?
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|             """
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|             txn.executemany(
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|                 sql,
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|                 (
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|                     (room_id, share_private, uid, oid)
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|                     for uid, oid in user_id_sets
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|                 )
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|             )
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|             for user_id, other_user_id in user_id_sets:
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|                 txn.call_after(
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|                     self.get_users_who_share_room_from_dir.invalidate,
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|                     (user_id,),
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|                 )
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|                 txn.call_after(
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|                     self.get_if_users_share_a_room.invalidate,
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|                     (user_id, other_user_id),
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|                 )
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|         return self.runInteraction(
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|             "update_users_who_share_room", _update_users_who_share_room_txn
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|         )
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| 
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|     def remove_user_who_share_room(self, user_id, other_user_id):
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|         """Deletes entries in the users_who_share_rooms table. The first
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|         user should be a local user.
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| 
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|         Args:
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|             room_id (str)
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|             share_private (bool): Is the room private
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|             user_id_tuples([(str, str)]): iterable of 2-tuple of user IDs.
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|         """
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|         def _remove_user_who_share_room_txn(txn):
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|             self._simple_delete_txn(
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|                 txn,
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|                 table="users_who_share_rooms",
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|                 keyvalues={
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|                     "user_id": user_id,
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|                     "other_user_id": other_user_id,
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|                 },
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|             )
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|             txn.call_after(
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|                 self.get_users_who_share_room_from_dir.invalidate,
 | |
|                 (user_id,),
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|             )
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|             txn.call_after(
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|                 self.get_if_users_share_a_room.invalidate,
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|                 (user_id, other_user_id),
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|             )
 | |
| 
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|         return self.runInteraction(
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|             "remove_user_who_share_room", _remove_user_who_share_room_txn
 | |
|         )
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| 
 | |
|     @cached(max_entries=500000)
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|     def get_if_users_share_a_room(self, user_id, other_user_id):
 | |
|         """Gets if users share a room.
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| 
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|         Args:
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|             user_id (str): Must be a local user_id
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|             other_user_id (str)
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| 
 | |
|         Returns:
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|             bool|None: None if they don't share a room, otherwise whether they
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|             share a private room or not.
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|         """
 | |
|         return self._simple_select_one_onecol(
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|             table="users_who_share_rooms",
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|             keyvalues={
 | |
|                 "user_id": user_id,
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|                 "other_user_id": other_user_id,
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|             },
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|             retcol="share_private",
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|             allow_none=True,
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|             desc="get_if_users_share_a_room",
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|         )
 | |
| 
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|     @cachedInlineCallbacks(max_entries=500000, iterable=True)
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|     def get_users_who_share_room_from_dir(self, user_id):
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|         """Returns the set of users who share a room with `user_id`
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| 
 | |
|         Args:
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|             user_id(str): Must be a local user
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| 
 | |
|         Returns:
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|             dict: user_id -> share_private mapping
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|         """
 | |
|         rows = yield self._simple_select_list(
 | |
|             table="users_who_share_rooms",
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|             keyvalues={
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|                 "user_id": user_id,
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|             },
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|             retcols=("other_user_id", "share_private",),
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|             desc="get_users_who_share_room_with_user",
 | |
|         )
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| 
 | |
|         defer.returnValue({
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|             row["other_user_id"]: row["share_private"]
 | |
|             for row in rows
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|         })
 | |
| 
 | |
|     def get_users_in_share_dir_with_room_id(self, user_id, room_id):
 | |
|         """Get all user tuples that are in the users_who_share_rooms due to the
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|         given room_id.
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| 
 | |
|         Returns:
 | |
|             [(user_id, other_user_id)]: where one of the two will match the given
 | |
|             user_id.
 | |
|         """
 | |
|         sql = """
 | |
|             SELECT user_id, other_user_id FROM users_who_share_rooms
 | |
|             WHERE room_id = ? AND (user_id = ? OR other_user_id = ?)
 | |
|         """
 | |
|         return self._execute(
 | |
|             "get_users_in_share_dir_with_room_id", None, sql, room_id, user_id, user_id
 | |
|         )
 | |
| 
 | |
|     @defer.inlineCallbacks
 | |
|     def get_rooms_in_common_for_users(self, user_id, other_user_id):
 | |
|         """Given two user_ids find out the list of rooms they share.
 | |
|         """
 | |
|         sql = """
 | |
|             SELECT room_id FROM (
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|                 SELECT c.room_id FROM current_state_events AS c
 | |
|                 INNER JOIN room_memberships USING (event_id)
 | |
|                 WHERE type = 'm.room.member'
 | |
|                     AND membership = 'join'
 | |
|                     AND state_key = ?
 | |
|             ) AS f1 INNER JOIN (
 | |
|                 SELECT c.room_id FROM current_state_events AS c
 | |
|                 INNER JOIN room_memberships USING (event_id)
 | |
|                 WHERE type = 'm.room.member'
 | |
|                     AND membership = 'join'
 | |
|                     AND state_key = ?
 | |
|             ) f2 USING (room_id)
 | |
|         """
 | |
| 
 | |
|         rows = yield self._execute(
 | |
|             "get_rooms_in_common_for_users", None, sql, user_id, other_user_id
 | |
|         )
 | |
| 
 | |
|         defer.returnValue([room_id for room_id, in rows])
 | |
| 
 | |
|     def delete_all_from_user_dir(self):
 | |
|         """Delete the entire user directory
 | |
|         """
 | |
|         def _delete_all_from_user_dir_txn(txn):
 | |
|             txn.execute("DELETE FROM user_directory")
 | |
|             txn.execute("DELETE FROM user_directory_search")
 | |
|             txn.execute("DELETE FROM users_in_pubic_room")
 | |
|             txn.execute("DELETE FROM users_who_share_rooms")
 | |
|             txn.call_after(self.get_user_in_directory.invalidate_all)
 | |
|             txn.call_after(self.get_user_in_public_room.invalidate_all)
 | |
|             txn.call_after(self.get_users_who_share_room_from_dir.invalidate_all)
 | |
|             txn.call_after(self.get_if_users_share_a_room.invalidate_all)
 | |
|         return self.runInteraction(
 | |
|             "delete_all_from_user_dir", _delete_all_from_user_dir_txn
 | |
|         )
 | |
| 
 | |
|     @cached()
 | |
|     def get_user_in_directory(self, user_id):
 | |
|         return self._simple_select_one(
 | |
|             table="user_directory",
 | |
|             keyvalues={"user_id": user_id},
 | |
|             retcols=("room_id", "display_name", "avatar_url",),
 | |
|             allow_none=True,
 | |
|             desc="get_user_in_directory",
 | |
|         )
 | |
| 
 | |
|     @cached()
 | |
|     def get_user_in_public_room(self, user_id):
 | |
|         return self._simple_select_one(
 | |
|             table="users_in_pubic_room",
 | |
|             keyvalues={"user_id": user_id},
 | |
|             retcols=("room_id",),
 | |
|             allow_none=True,
 | |
|             desc="get_user_in_public_room",
 | |
|         )
 | |
| 
 | |
|     def get_user_directory_stream_pos(self):
 | |
|         return self._simple_select_one_onecol(
 | |
|             table="user_directory_stream_pos",
 | |
|             keyvalues={},
 | |
|             retcol="stream_id",
 | |
|             desc="get_user_directory_stream_pos",
 | |
|         )
 | |
| 
 | |
|     def update_user_directory_stream_pos(self, stream_id):
 | |
|         return self._simple_update_one(
 | |
|             table="user_directory_stream_pos",
 | |
|             keyvalues={},
 | |
|             updatevalues={"stream_id": stream_id},
 | |
|             desc="update_user_directory_stream_pos",
 | |
|         )
 | |
| 
 | |
|     def get_current_state_deltas(self, prev_stream_id):
 | |
|         prev_stream_id = int(prev_stream_id)
 | |
|         if not self._curr_state_delta_stream_cache.has_any_entity_changed(prev_stream_id):
 | |
|             return []
 | |
| 
 | |
|         def get_current_state_deltas_txn(txn):
 | |
|             # First we calculate the max stream id that will give us less than
 | |
|             # N results.
 | |
|             # We arbitarily limit to 100 stream_id entries to ensure we don't
 | |
|             # select toooo many.
 | |
|             sql = """
 | |
|                 SELECT stream_id, count(*)
 | |
|                 FROM current_state_delta_stream
 | |
|                 WHERE stream_id > ?
 | |
|                 GROUP BY stream_id
 | |
|                 ORDER BY stream_id ASC
 | |
|                 LIMIT 100
 | |
|             """
 | |
|             txn.execute(sql, (prev_stream_id,))
 | |
| 
 | |
|             total = 0
 | |
|             max_stream_id = prev_stream_id
 | |
|             for max_stream_id, count in txn:
 | |
|                 total += count
 | |
|                 if total > 100:
 | |
|                     # We arbitarily limit to 100 entries to ensure we don't
 | |
|                     # select toooo many.
 | |
|                     break
 | |
| 
 | |
|             # Now actually get the deltas
 | |
|             sql = """
 | |
|                 SELECT stream_id, room_id, type, state_key, event_id, prev_event_id
 | |
|                 FROM current_state_delta_stream
 | |
|                 WHERE ? < stream_id AND stream_id <= ?
 | |
|                 ORDER BY stream_id ASC
 | |
|             """
 | |
|             txn.execute(sql, (prev_stream_id, max_stream_id,))
 | |
|             return self.cursor_to_dict(txn)
 | |
| 
 | |
|         return self.runInteraction(
 | |
|             "get_current_state_deltas", get_current_state_deltas_txn
 | |
|         )
 | |
| 
 | |
|     def get_max_stream_id_in_current_state_deltas(self):
 | |
|         return self._simple_select_one_onecol(
 | |
|             table="current_state_delta_stream",
 | |
|             keyvalues={},
 | |
|             retcol="COALESCE(MAX(stream_id), -1)",
 | |
|             desc="get_max_stream_id_in_current_state_deltas",
 | |
|         )
 | |
| 
 | |
|     @defer.inlineCallbacks
 | |
|     def search_user_dir(self, user_id, search_term, limit):
 | |
|         """Searches for users in directory
 | |
| 
 | |
|         Returns:
 | |
|             dict of the form::
 | |
| 
 | |
|                 {
 | |
|                     "limited": <bool>,  # whether there were more results or not
 | |
|                     "results": [  # Ordered by best match first
 | |
|                         {
 | |
|                             "user_id": <user_id>,
 | |
|                             "display_name": <display_name>,
 | |
|                             "avatar_url": <avatar_url>
 | |
|                         }
 | |
|                     ]
 | |
|                 }
 | |
|         """
 | |
|         if isinstance(self.database_engine, PostgresEngine):
 | |
|             full_query, exact_query, prefix_query = _parse_query_postgres(search_term)
 | |
| 
 | |
|             # We order by rank and then if they have profile info
 | |
|             # The ranking algorithm is hand tweaked for "best" results. Broadly
 | |
|             # the idea is we give a higher weight to exact matches.
 | |
|             # The array of numbers are the weights for the various part of the
 | |
|             # search: (domain, _, display name, localpart)
 | |
|             sql = """
 | |
|                 SELECT d.user_id, display_name, avatar_url
 | |
|                 FROM user_directory_search
 | |
|                 INNER JOIN user_directory AS d USING (user_id)
 | |
|                 LEFT JOIN users_in_pubic_room AS p USING (user_id)
 | |
|                 LEFT JOIN (
 | |
|                     SELECT other_user_id AS user_id FROM users_who_share_rooms
 | |
|                     WHERE user_id = ? AND share_private
 | |
|                 ) AS s USING (user_id)
 | |
|                 WHERE
 | |
|                     (s.user_id IS NOT NULL OR p.user_id IS NOT NULL)
 | |
|                     AND vector @@ to_tsquery('english', ?)
 | |
|                 ORDER BY
 | |
|                     (CASE WHEN s.user_id IS NOT NULL THEN 4.0 ELSE 1.0 END)
 | |
|                     * (CASE WHEN display_name IS NOT NULL THEN 1.2 ELSE 1.0 END)
 | |
|                     * (CASE WHEN avatar_url IS NOT NULL THEN 1.2 ELSE 1.0 END)
 | |
|                     * (
 | |
|                         3 * ts_rank_cd(
 | |
|                             '{0.1, 0.1, 0.9, 1.0}',
 | |
|                             vector,
 | |
|                             to_tsquery('english', ?),
 | |
|                             8
 | |
|                         )
 | |
|                         + ts_rank_cd(
 | |
|                             '{0.1, 0.1, 0.9, 1.0}',
 | |
|                             vector,
 | |
|                             to_tsquery('english', ?),
 | |
|                             8
 | |
|                         )
 | |
|                     )
 | |
|                     DESC,
 | |
|                     display_name IS NULL,
 | |
|                     avatar_url IS NULL
 | |
|                 LIMIT ?
 | |
|             """
 | |
|             args = (user_id, full_query, exact_query, prefix_query, limit + 1,)
 | |
|         elif isinstance(self.database_engine, Sqlite3Engine):
 | |
|             search_query = _parse_query_sqlite(search_term)
 | |
| 
 | |
|             sql = """
 | |
|                 SELECT d.user_id, display_name, avatar_url
 | |
|                 FROM user_directory_search
 | |
|                 INNER JOIN user_directory AS d USING (user_id)
 | |
|                 LEFT JOIN users_in_pubic_room AS p USING (user_id)
 | |
|                 LEFT JOIN (
 | |
|                     SELECT other_user_id AS user_id FROM users_who_share_rooms
 | |
|                     WHERE user_id = ? AND share_private
 | |
|                 ) AS s USING (user_id)
 | |
|                 WHERE
 | |
|                     (s.user_id IS NOT NULL OR p.user_id IS NOT NULL)
 | |
|                     AND value MATCH ?
 | |
|                 ORDER BY
 | |
|                     rank(matchinfo(user_directory_search)) DESC,
 | |
|                     display_name IS NULL,
 | |
|                     avatar_url IS NULL
 | |
|                 LIMIT ?
 | |
|             """
 | |
|             args = (user_id, search_query, limit + 1)
 | |
|         else:
 | |
|             # This should be unreachable.
 | |
|             raise Exception("Unrecognized database engine")
 | |
| 
 | |
|         results = yield self._execute(
 | |
|             "search_user_dir", self.cursor_to_dict, sql, *args
 | |
|         )
 | |
| 
 | |
|         limited = len(results) > limit
 | |
| 
 | |
|         defer.returnValue({
 | |
|             "limited": limited,
 | |
|             "results": results,
 | |
|         })
 | |
| 
 | |
| 
 | |
| def _parse_query_sqlite(search_term):
 | |
|     """Takes a plain unicode string from the user and converts it into a form
 | |
|     that can be passed to database.
 | |
|     We use this so that we can add prefix matching, which isn't something
 | |
|     that is supported by default.
 | |
| 
 | |
|     We specifically add both a prefix and non prefix matching term so that
 | |
|     exact matches get ranked higher.
 | |
|     """
 | |
| 
 | |
|     # Pull out the individual words, discarding any non-word characters.
 | |
|     results = re.findall(r"([\w\-]+)", search_term, re.UNICODE)
 | |
|     return " & ".join("(%s* | %s)" % (result, result,) for result in results)
 | |
| 
 | |
| 
 | |
| def _parse_query_postgres(search_term):
 | |
|     """Takes a plain unicode string from the user and converts it into a form
 | |
|     that can be passed to database.
 | |
|     We use this so that we can add prefix matching, which isn't something
 | |
|     that is supported by default.
 | |
|     """
 | |
| 
 | |
|     # Pull out the individual words, discarding any non-word characters.
 | |
|     results = re.findall(r"([\w\-]+)", search_term, re.UNICODE)
 | |
| 
 | |
|     both = " & ".join("(%s:* | %s)" % (result, result,) for result in results)
 | |
|     exact = " & ".join("%s" % (result,) for result in results)
 | |
|     prefix = " & ".join("%s:*" % (result,) for result in results)
 | |
| 
 | |
|     return both, exact, prefix
 |