765 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			765 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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from twisted.internet import defer
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from ._base import SQLBaseStore
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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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import re
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import logging
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logger = logging.getLogger(__name__)
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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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        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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        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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        defer.returnValue(False)
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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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        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_public_rooms",
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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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    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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        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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        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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        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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    @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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    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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            if isinstance(self.database_engine, PostgresEngine):
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                # We weight the localpart 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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            txn.call_after(self.get_user_in_directory.invalidate, (user_id,))
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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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    @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_public_rooms",
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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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    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_public_rooms",
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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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    @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_public_rooms",
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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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    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_public_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_public_due_to_room",
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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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        user_ids_pub = yield self._simple_select_onecol(
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            table="users_in_public_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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        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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        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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        defer.returnValue(user_ids)
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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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    @defer.inlineCallbacks
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    def get_all_local_users(self):
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        """Get all local users
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        """
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        sql = """
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            SELECT name FROM users
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        """
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        rows = yield self._execute("get_all_local_users", None, sql)
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        defer.returnValue([name for name, in rows])
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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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        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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    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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        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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    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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        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,),
 | 
						|
            )
 | 
						|
            txn.call_after(
 | 
						|
                self.get_if_users_share_a_room.invalidate,
 | 
						|
                (user_id, other_user_id),
 | 
						|
            )
 | 
						|
 | 
						|
        return self.runInteraction(
 | 
						|
            "remove_user_who_share_room", _remove_user_who_share_room_txn
 | 
						|
        )
 | 
						|
 | 
						|
    @cached(max_entries=500000)
 | 
						|
    def get_if_users_share_a_room(self, user_id, other_user_id):
 | 
						|
        """Gets if users share a room.
 | 
						|
 | 
						|
        Args:
 | 
						|
            user_id (str): Must be a local user_id
 | 
						|
            other_user_id (str)
 | 
						|
 | 
						|
        Returns:
 | 
						|
            bool|None: None if they don't share a room, otherwise whether they
 | 
						|
            share a private room or not.
 | 
						|
        """
 | 
						|
        return self._simple_select_one_onecol(
 | 
						|
            table="users_who_share_rooms",
 | 
						|
            keyvalues={
 | 
						|
                "user_id": user_id,
 | 
						|
                "other_user_id": other_user_id,
 | 
						|
            },
 | 
						|
            retcol="share_private",
 | 
						|
            allow_none=True,
 | 
						|
            desc="get_if_users_share_a_room",
 | 
						|
        )
 | 
						|
 | 
						|
    @cachedInlineCallbacks(max_entries=500000, iterable=True)
 | 
						|
    def get_users_who_share_room_from_dir(self, user_id):
 | 
						|
        """Returns the set of users who share a room with `user_id`
 | 
						|
 | 
						|
        Args:
 | 
						|
            user_id(str): Must be a local user
 | 
						|
 | 
						|
        Returns:
 | 
						|
            dict: user_id -> share_private mapping
 | 
						|
        """
 | 
						|
        rows = yield self._simple_select_list(
 | 
						|
            table="users_who_share_rooms",
 | 
						|
            keyvalues={
 | 
						|
                "user_id": user_id,
 | 
						|
            },
 | 
						|
            retcols=("other_user_id", "share_private",),
 | 
						|
            desc="get_users_who_share_room_with_user",
 | 
						|
        )
 | 
						|
 | 
						|
        defer.returnValue({
 | 
						|
            row["other_user_id"]: row["share_private"]
 | 
						|
            for row in rows
 | 
						|
        })
 | 
						|
 | 
						|
    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
 | 
						|
        given room_id.
 | 
						|
 | 
						|
        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 (
 | 
						|
                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_public_rooms")
 | 
						|
            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_public_rooms",
 | 
						|
            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 self.hs.config.user_directory_search_all_users:
 | 
						|
            # make s.user_id null to keep the ordering algorithm happy
 | 
						|
            join_clause = """
 | 
						|
                CROSS JOIN (SELECT NULL as user_id) AS s
 | 
						|
            """
 | 
						|
            join_args = ()
 | 
						|
            where_clause = "1=1"
 | 
						|
        else:
 | 
						|
            join_clause = """
 | 
						|
                LEFT JOIN users_in_public_rooms 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)
 | 
						|
            """
 | 
						|
            join_args = (user_id,)
 | 
						|
            where_clause = "(s.user_id IS NOT NULL OR p.user_id IS NOT NULL)"
 | 
						|
 | 
						|
        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 AS user_id, display_name, avatar_url
 | 
						|
                FROM user_directory_search
 | 
						|
                INNER JOIN user_directory AS d USING (user_id)
 | 
						|
                %s
 | 
						|
                WHERE
 | 
						|
                    %s
 | 
						|
                    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 ?
 | 
						|
            """ % (join_clause, where_clause)
 | 
						|
            args = join_args + (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 AS user_id, display_name, avatar_url
 | 
						|
                FROM user_directory_search
 | 
						|
                INNER JOIN user_directory AS d USING (user_id)
 | 
						|
                %s
 | 
						|
                WHERE
 | 
						|
                    %s
 | 
						|
                    AND value MATCH ?
 | 
						|
                ORDER BY
 | 
						|
                    rank(matchinfo(user_directory_search)) DESC,
 | 
						|
                    display_name IS NULL,
 | 
						|
                    avatar_url IS NULL
 | 
						|
                LIMIT ?
 | 
						|
            """ % (join_clause, where_clause)
 | 
						|
            args = join_args + (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* OR %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
 |