diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/handlers/user_directory.py | 404 | ||||
| -rw-r--r-- | synapse/notifier.py | 6 | ||||
| -rw-r--r-- | synapse/rest/__init__.py | 2 | ||||
| -rw-r--r-- | synapse/rest/client/v2_alpha/user_directory.py | 75 | ||||
| -rw-r--r-- | synapse/server.py | 5 | ||||
| -rw-r--r-- | synapse/state.py | 11 | ||||
| -rw-r--r-- | synapse/storage/__init__.py | 14 | ||||
| -rw-r--r-- | synapse/storage/_base.py | 5 | ||||
| -rw-r--r-- | synapse/storage/events.py | 4 | ||||
| -rw-r--r-- | synapse/storage/schema/delta/42/user_dir.py | 84 | ||||
| -rw-r--r-- | synapse/storage/user_directory.py | 412 | ||||
| -rw-r--r-- | synapse/types.py | 7 | ||||
| -rw-r--r-- | synapse/util/caches/stream_change_cache.py | 15 |
13 files changed, 1043 insertions, 1 deletions
diff --git a/synapse/handlers/user_directory.py b/synapse/handlers/user_directory.py new file mode 100644 index 0000000000..d795a9f8d5 --- /dev/null +++ b/synapse/handlers/user_directory.py @@ -0,0 +1,404 @@ +# -*- coding: utf-8 -*- +# Copyright 2017 Vector Creations Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import logging + +from twisted.internet import defer + +from synapse.api.constants import EventTypes, JoinRules, Membership +from synapse.storage.roommember import ProfileInfo +from synapse.util.metrics import Measure + + +logger = logging.getLogger(__name__) + + +class UserDirectoyHandler(object): + """Handles querying of and keeping updated the user_directory. + + N.B.: ASSUMES IT IS THE ONLY THING THAT MODIFIES THE USER DIRECTORY + + The user directory is filled with users who this server can see are joined to a + world_readable or publically joinable room. We keep a database table up to date + by streaming changes of the current state and recalculating whether users should + be in the directory or not when necessary. + + For each user in the directory we also store a room_id which is public and that the + user is joined to. This allows us to ignore history_visibility and join_rules changes + for that user in all other public rooms, as we know they'll still be in at least + one public room. + """ + + def __init__(self, hs): + self.store = hs.get_datastore() + self.state = hs.get_state_handler() + self.server_name = hs.hostname + self.clock = hs.get_clock() + + # When start up for the first time we need to populate the user_directory. + # This is a set of user_id's we've inserted already + self.initially_handled_users = set() + self.initially_handled_users_in_public = set() + + # The current position in the current_state_delta stream + self.pos = None + + # Guard to ensure we only process deltas one at a time + self._is_processing = False + + # We kick this off so that we don't have to wait for a change before + # we start populating the user directory + self.clock.call_later(0, self.notify_new_event) + + def search_users(self, 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> + } + ] + } + """ + return self.store.search_user_dir(search_term, limit) + + @defer.inlineCallbacks + def notify_new_event(self): + """Called when there may be more deltas to process + """ + if self._is_processing: + return + + self._is_processing = True + try: + yield self._unsafe_process() + finally: + self._is_processing = False + + @defer.inlineCallbacks + def _unsafe_process(self): + # If self.pos is None then means we haven't fetched it from DB + if self.pos is None: + self.pos = yield self.store.get_user_directory_stream_pos() + + # If still None then we need to do the initial fill of directory + if self.pos is None: + yield self._do_initial_spam() + self.pos = yield self.store.get_user_directory_stream_pos() + + # Loop round handling deltas until we're up to date + while True: + with Measure(self.clock, "user_dir_delta"): + deltas = yield self.store.get_current_state_deltas(self.pos) + if not deltas: + return + + yield self._handle_deltas(deltas) + + self.pos = deltas[-1]["stream_id"] + yield self.store.update_user_directory_stream_pos(self.pos) + + @defer.inlineCallbacks + def _do_initial_spam(self): + """Populates the user_directory from the current state of the DB, used + when synapse first starts with user_directory support + """ + new_pos = yield self.store.get_max_stream_id_in_current_state_deltas() + + # Delete any existing entries just in case there are any + yield self.store.delete_all_from_user_dir() + + # We process by going through each existing room at a time. + room_ids = yield self.store.get_all_rooms() + + for room_id in room_ids: + yield self._handle_intial_room(room_id) + + self.initially_handled_users = None + + yield self.store.update_user_directory_stream_pos(new_pos) + + @defer.inlineCallbacks + def _handle_intial_room(self, room_id): + """Called when we initially fill out user_directory one room at a time + """ + is_in_room = yield self.state.get_is_host_in_room(room_id, self.server_name) + if not is_in_room: + return + + is_public = yield self.store.is_room_world_readable_or_publicly_joinable(room_id) + + users_with_profile = yield self.state.get_current_user_in_room(room_id) + unhandled_users = set(users_with_profile) - self.initially_handled_users + + yield self.store.add_profiles_to_user_dir( + room_id, { + user_id: users_with_profile[user_id] for user_id in unhandled_users + } + ) + + self.initially_handled_users |= unhandled_users + + if is_public: + yield self.store.add_users_to_public_room( + room_id, + user_ids=unhandled_users - self.initially_handled_users_in_public + ) + self.initially_handled_users_in_public != unhandled_users + + @defer.inlineCallbacks + def _handle_deltas(self, deltas): + """Called with the state deltas to process + """ + for delta in deltas: + typ = delta["type"] + state_key = delta["state_key"] + room_id = delta["room_id"] + event_id = delta["event_id"] + prev_event_id = delta["prev_event_id"] + + logger.debug("Handling: %r %r, %s", typ, state_key, event_id) + + # For join rule and visibility changes we need to check if the room + # may have become public or not and add/remove the users in said room + if typ in (EventTypes.RoomHistoryVisibility, EventTypes.JoinRules): + yield self._handle_room_publicity_change( + room_id, prev_event_id, event_id, typ, + ) + elif typ == EventTypes.Member: + change = yield self._get_key_change( + prev_event_id, event_id, + key_name="membership", + public_value=Membership.JOIN, + ) + + if change is None: + continue + + if not change: + # Need to check if the server left the room entirely, if so + # we might need to remove all the users in that room + is_in_room = yield self.state.get_is_host_in_room( + room_id, self.server_name, + ) + if not is_in_room: + logger.debug("Server left room: %r", room_id) + # Fetch all the users that we marked as being in user + # directory due to being in the room and then check if + # need to remove those users or not + user_ids = yield self.store.get_users_in_dir_due_to_room(room_id) + for user_id in user_ids: + yield self._handle_remove_user(room_id, user_id) + return + else: + logger.debug("Server is still in room: %r", room_id) + + if change: # The user joined + event = yield self.store.get_event(event_id) + profile = ProfileInfo( + avatar_url=event.content.get("avatar_url"), + display_name=event.content.get("displayname"), + ) + + yield self._handle_new_user(room_id, state_key, profile) + else: # The user left + yield self._handle_remove_user(room_id, state_key) + else: + logger.debug("Ignoring irrelevant type: %r", typ) + + @defer.inlineCallbacks + def _handle_room_publicity_change(self, room_id, prev_event_id, event_id, typ): + """Handle a room having potentially changed from/to world_readable/publically + joinable. + + Args: + room_id (str) + prev_event_id (str|None): The previous event before the state change + event_id (str|None): The new event after the state change + typ (str): Type of the event + """ + logger.debug("Handling change for %s", typ) + + if typ == EventTypes.RoomHistoryVisibility: + change = yield self._get_key_change( + prev_event_id, event_id, + key_name="history_visibility", + public_value="world_readable", + ) + elif typ == EventTypes.JoinRules: + change = yield self._get_key_change( + prev_event_id, event_id, + key_name="join_rule", + public_value=JoinRules.PUBLIC, + ) + else: + raise Exception("Invalid event type") + # If change is None, no change. True => become world_readable/public, + # False => was world_readable/public + if change is None: + logger.debug("No change") + return + + # There's been a change to or from being world readable. + + is_public = yield self.store.is_room_world_readable_or_publicly_joinable( + room_id + ) + + logger.debug("Change: %r, is_public: %r", change, is_public) + + if change and not is_public: + # If we became world readable but room isn't currently public then + # we ignore the change + return + elif not change and is_public: + # If we stopped being world readable but are still public, + # ignore the change + return + + if change: + users_with_profile = yield self.state.get_current_user_in_room(room_id) + for user_id, profile in users_with_profile.iteritems(): + yield self._handle_new_user(room_id, user_id, profile) + else: + users = yield self.store.get_users_in_public_due_to_room(room_id) + for user_id in users: + yield self._handle_remove_user(room_id, user_id) + + @defer.inlineCallbacks + def _handle_new_user(self, room_id, user_id, profile): + """Called when we might need to add user to directory + + Args: + room_id (str): room_id that user joined or started being public that + user_id (str) + """ + logger.debug("Adding user to dir, %r", user_id) + + row = yield self.store.get_user_in_directory(user_id) + if not row: + yield self.store.add_profiles_to_user_dir(room_id, {user_id: profile}) + + is_public = yield self.store.is_room_world_readable_or_publicly_joinable( + room_id + ) + + if not is_public: + return + + row = yield self.store.get_user_in_public_room(user_id) + if not row: + yield self.store.add_users_to_public_room(room_id, [user_id]) + + @defer.inlineCallbacks + def _handle_remove_user(self, room_id, user_id): + """Called when we might need to remove user to directory + + Args: + room_id (str): room_id that user left or stopped being public that + user_id (str) + """ + logger.debug("Maybe removing user %r", user_id) + + row = yield self.store.get_user_in_directory(user_id) + update_user_dir = row and row["room_id"] == room_id + + row = yield self.store.get_user_in_public_room(user_id) + update_user_in_public = row and row["room_id"] == room_id + + if not update_user_in_public and not update_user_dir: + return + + # XXX: Make this faster? + rooms = yield self.store.get_rooms_for_user(user_id) + for j_room_id in rooms: + if not update_user_in_public and not update_user_dir: + break + + is_in_room = yield self.state.get_is_host_in_room( + j_room_id, self.server_name, + ) + + if not is_in_room: + continue + + if update_user_dir: + update_user_dir = False + yield self.store.update_user_in_user_dir(user_id, j_room_id) + + if update_user_in_public: + is_public = yield self.store.is_room_world_readable_or_publicly_joinable( + j_room_id + ) + + if is_public: + yield self.store.update_user_in_public_user_list(user_id, j_room_id) + update_user_in_public = False + + if update_user_dir: + yield self.store.remove_from_user_dir(user_id) + elif update_user_in_public: + yield self.store.remove_from_user_in_public_room(user_id) + + @defer.inlineCallbacks + def _get_key_change(self, prev_event_id, event_id, key_name, public_value): + """Given two events check if the `key_name` field in content changed + from not matching `public_value` to doing so. + + For example, check if `history_visibility` (`key_name`) changed from + `shared` to `world_readable` (`public_value`). + + Returns: + None if the field in the events either both match `public_value` + or if neither do, i.e. there has been no change. + True if it didnt match `public_value` but now does + False if it did match `public_value` but now doesn't + """ + prev_event = None + event = None + if prev_event_id: + prev_event = yield self.store.get_event(prev_event_id, allow_none=True) + + if event_id: + event = yield self.store.get_event(event_id, allow_none=True) + + if not event and not prev_event: + logger.debug("Neither event exists: %r %r", prev_event_id, event_id) + defer.returnValue(None) + + prev_value = None + value = None + + if prev_event: + prev_value = prev_event.content.get(key_name) + + if event: + value = event.content.get(key_name) + + logger.debug("prev_value: %r -> value: %r", prev_value, value) + + if value == public_value and prev_value != public_value: + defer.returnValue(True) + elif value != public_value and prev_value == public_value: + defer.returnValue(False) + else: + defer.returnValue(None) diff --git a/synapse/notifier.py b/synapse/notifier.py index 48566187ab..6b1709d700 100644 --- a/synapse/notifier.py +++ b/synapse/notifier.py @@ -167,6 +167,7 @@ class Notifier(object): self.clock = hs.get_clock() self.appservice_handler = hs.get_application_service_handler() + self.user_directory_handler = hs.get_user_directory_handler() if hs.should_send_federation(): self.federation_sender = hs.get_federation_sender() @@ -251,7 +252,10 @@ class Notifier(object): """Notify any user streams that are interested in this room event""" # poke any interested application service. preserve_fn(self.appservice_handler.notify_interested_services)( - room_stream_id) + room_stream_id + ) + + preserve_fn(self.user_directory_handler.notify_new_event)() if self.federation_sender: preserve_fn(self.federation_sender.notify_new_events)( diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py index aa8d874f96..3d809d181b 100644 --- a/synapse/rest/__init__.py +++ b/synapse/rest/__init__.py @@ -51,6 +51,7 @@ from synapse.rest.client.v2_alpha import ( devices, thirdparty, sendtodevice, + user_directory, ) from synapse.http.server import JsonResource @@ -100,3 +101,4 @@ class ClientRestResource(JsonResource): devices.register_servlets(hs, client_resource) thirdparty.register_servlets(hs, client_resource) sendtodevice.register_servlets(hs, client_resource) + user_directory.register_servlets(hs, client_resource) diff --git a/synapse/rest/client/v2_alpha/user_directory.py b/synapse/rest/client/v2_alpha/user_directory.py new file mode 100644 index 0000000000..17d3dffc8f --- /dev/null +++ b/synapse/rest/client/v2_alpha/user_directory.py @@ -0,0 +1,75 @@ +# -*- coding: utf-8 -*- +# Copyright 2017 Vector Creations Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import logging + +from twisted.internet import defer + +from synapse.api.errors import SynapseError +from synapse.http.servlet import RestServlet, parse_json_object_from_request +from ._base import client_v2_patterns + +logger = logging.getLogger(__name__) + + +class UserDirectorySearchRestServlet(RestServlet): + PATTERNS = client_v2_patterns("/user_directory/search$") + + def __init__(self, hs): + """ + Args: + hs (synapse.server.HomeServer): server + """ + super(UserDirectorySearchRestServlet, self).__init__() + self.hs = hs + self.auth = hs.get_auth() + self.user_directory_handler = hs.get_user_directory_handler() + + @defer.inlineCallbacks + def on_POST(self, request): + """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> + } + ] + } + """ + yield self.auth.get_user_by_req(request, allow_guest=False) + body = parse_json_object_from_request(request) + + limit = body.get("limit", 10) + limit = min(limit, 50) + + try: + search_term = body["search_term"] + except: + raise SynapseError(400, "`search_term` is required field") + + results = yield self.user_directory_handler.search_users(search_term, limit) + + defer.returnValue((200, results)) + + +def register_servlets(hs, http_server): + UserDirectorySearchRestServlet(hs).register(http_server) diff --git a/synapse/server.py b/synapse/server.py index e400e278c6..a38e5179e0 100644 --- a/synapse/server.py +++ b/synapse/server.py @@ -49,6 +49,7 @@ from synapse.handlers.events import EventHandler, EventStreamHandler from synapse.handlers.initial_sync import InitialSyncHandler from synapse.handlers.receipts import ReceiptsHandler from synapse.handlers.read_marker import ReadMarkerHandler +from synapse.handlers.user_directory import UserDirectoyHandler from synapse.http.client import SimpleHttpClient, InsecureInterceptableContextFactory from synapse.http.matrixfederationclient import MatrixFederationHttpClient from synapse.notifier import Notifier @@ -137,6 +138,7 @@ class HomeServer(object): 'tcp_replication', 'read_marker_handler', 'action_generator', + 'user_directory_handler', ] def __init__(self, hostname, **kwargs): @@ -304,6 +306,9 @@ class HomeServer(object): def build_action_generator(self): return ActionGenerator(self) + def build_user_directory_handler(self): + return UserDirectoyHandler(self) + def remove_pusher(self, app_id, push_key, user_id): return self.get_pusherpool().remove_pusher(app_id, push_key, user_id) diff --git a/synapse/state.py b/synapse/state.py index 02fee47f39..dffa79e4c9 100644 --- a/synapse/state.py +++ b/synapse/state.py @@ -187,6 +187,17 @@ class StateHandler(object): defer.returnValue(joined_hosts) @defer.inlineCallbacks + def get_is_host_in_room(self, room_id, host, latest_event_ids=None): + if not latest_event_ids: + latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id) + logger.debug("calling resolve_state_groups from get_is_host_in_room") + entry = yield self.resolve_state_groups(room_id, latest_event_ids) + is_host_joined = yield self.store.is_host_joined( + room_id, host, entry.state_id, entry.state + ) + defer.returnValue(is_host_joined) + + @defer.inlineCallbacks def compute_event_context(self, event, old_state=None): """Build an EventContext structure for the event. diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py index d604e7668f..3c88ba9860 100644 --- a/synapse/storage/__init__.py +++ b/synapse/storage/__init__.py @@ -49,6 +49,7 @@ from .tags import TagsStore from .account_data import AccountDataStore from .openid import OpenIdStore from .client_ips import ClientIpStore +from .user_directory import UserDirectoryStore from .util.id_generators import IdGenerator, StreamIdGenerator, ChainedIdGenerator from .engines import PostgresEngine @@ -86,6 +87,7 @@ class DataStore(RoomMemberStore, RoomStore, ClientIpStore, DeviceStore, DeviceInboxStore, + UserDirectoryStore, ): def __init__(self, db_conn, hs): @@ -221,6 +223,18 @@ class DataStore(RoomMemberStore, RoomStore, "DeviceListFederationStreamChangeCache", device_list_max, ) + curr_state_delta_prefill, min_curr_state_delta_id = self._get_cache_dict( + db_conn, "current_state_delta_stream", + entity_column="room_id", + stream_column="stream_id", + max_value=events_max, # As we share the stream id with events token + limit=1000, + ) + self._curr_state_delta_stream_cache = StreamChangeCache( + "_curr_state_delta_stream_cache", min_curr_state_delta_id, + prefilled_cache=curr_state_delta_prefill, + ) + cur = LoggingTransaction( db_conn.cursor(), name="_find_stream_orderings_for_times_txn", diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index 58b73af7d2..db816346f5 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -425,6 +425,11 @@ class SQLBaseStore(object): txn.execute(sql, vals) + def _simple_insert_many(self, table, values, desc): + return self.runInteraction( + desc, self._simple_insert_many_txn, table, values + ) + @staticmethod def _simple_insert_many_txn(txn, table, values): if not values: diff --git a/synapse/storage/events.py b/synapse/storage/events.py index dfb57f9d12..528f19eb87 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -755,6 +755,10 @@ class EventsStore(SQLBaseStore): ] ) + self._curr_state_delta_stream_cache.entity_has_changed( + room_id, max_stream_order, + ) + # Invalidate the various caches # Figure out the changes of membership to invalidate the diff --git a/synapse/storage/schema/delta/42/user_dir.py b/synapse/storage/schema/delta/42/user_dir.py new file mode 100644 index 0000000000..ea6a18196d --- /dev/null +++ b/synapse/storage/schema/delta/42/user_dir.py @@ -0,0 +1,84 @@ +# Copyright 2017 Vector Creations Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import logging + +from synapse.storage.prepare_database import get_statements +from synapse.storage.engines import PostgresEngine, Sqlite3Engine + +logger = logging.getLogger(__name__) + + +BOTH_TABLES = """ +CREATE TABLE user_directory_stream_pos ( + Lock CHAR(1) NOT NULL DEFAULT 'X' UNIQUE, -- Makes sure this table only has one row. + stream_id BIGINT, + CHECK (Lock='X') +); + +INSERT INTO user_directory_stream_pos (stream_id) VALUES (null); + +CREATE TABLE user_directory ( + user_id TEXT NOT NULL, + room_id TEXT NOT NULL, -- A room_id that we know the user is joined to + display_name TEXT, + avatar_url TEXT +); + +CREATE INDEX user_directory_room_idx ON user_directory(room_id); +CREATE UNIQUE INDEX user_directory_user_idx ON user_directory(user_id); + +CREATE TABLE users_in_pubic_room ( + user_id TEXT NOT NULL, + room_id TEXT NOT NULL -- A room_id that we know is public +); + +CREATE INDEX users_in_pubic_room_room_idx ON users_in_pubic_room(room_id); +CREATE UNIQUE INDEX users_in_pubic_room_user_idx ON users_in_pubic_room(user_id); +""" + + +POSTGRES_TABLE = """ +CREATE TABLE user_directory_search ( + user_id TEXT NOT NULL, + vector tsvector +); + +CREATE INDEX user_directory_search_fts_idx ON user_directory_search USING gin(vector); +CREATE UNIQUE INDEX user_directory_search_user_idx ON user_directory_search(user_id); +""" + + +SQLITE_TABLE = """ +CREATE VIRTUAL TABLE user_directory_search + USING fts4 ( user_id, value ); +""" + + +def run_create(cur, database_engine, *args, **kwargs): + for statement in get_statements(BOTH_TABLES.splitlines()): + cur.execute(statement) + + if isinstance(database_engine, PostgresEngine): + for statement in get_statements(POSTGRES_TABLE.splitlines()): + cur.execute(statement) + elif isinstance(database_engine, Sqlite3Engine): + for statement in get_statements(SQLITE_TABLE.splitlines()): + cur.execute(statement) + else: + raise Exception("Unrecognized database engine") + + +def run_upgrade(*args, **kwargs): + pass diff --git a/synapse/storage/user_directory.py b/synapse/storage/user_directory.py new file mode 100644 index 0000000000..bcf24fa4d0 --- /dev/null +++ b/synapse/storage/user_directory.py @@ -0,0 +1,412 @@ +# -*- coding: utf-8 -*- +# Copyright 2017 Vector Creations Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from twisted.internet import defer + +from ._base import SQLBaseStore +from synapse.util.caches.descriptors import cached, cachedInlineCallbacks +from synapse.api.constants import EventTypes, JoinRules +from synapse.storage.engines import PostgresEngine, Sqlite3Engine +from synapse.types import get_domain_from_id, get_localpart_from_id + +import re + + +class UserDirectoryStore(SQLBaseStore): + + @cachedInlineCallbacks(cache_context=True) + def is_room_world_readable_or_publicly_joinable(self, room_id, cache_context): + """Check if the room is either world_readable or publically joinable + """ + current_state_ids = yield self.get_current_state_ids( + room_id, on_invalidate=cache_context.invalidate + ) + + join_rules_id = current_state_ids.get((EventTypes.JoinRules, "")) + if join_rules_id: + join_rule_ev = yield self.get_event(join_rules_id, allow_none=True) + if join_rule_ev: + if join_rule_ev.content.get("join_rule") == JoinRules.PUBLIC: + defer.returnValue(True) + + hist_vis_id = current_state_ids.get((EventTypes.RoomHistoryVisibility, "")) + if hist_vis_id: + hist_vis_ev = yield self.get_event(hist_vis_id, allow_none=True) + if hist_vis_ev: + if hist_vis_ev.content.get("history_visibility") == "world_readable": + defer.returnValue(True) + + defer.returnValue(False) + + @defer.inlineCallbacks + def add_users_to_public_room(self, room_id, user_ids): + """Add user to the list of users in public rooms + + Args: + room_id (str): A room_id that all users are in that is world_readable + or publically joinable + user_ids (list(str)): Users to add + """ + yield self._simple_insert_many( + table="users_in_pubic_room", + values=[ + { + "user_id": user_id, + "room_id": room_id, + } + for user_id in user_ids + ], + desc="add_users_to_public_room" + ) + for user_id in user_ids: + self.get_user_in_public_room.invalidate((user_id,)) + + def add_profiles_to_user_dir(self, room_id, users_with_profile): + """Add profiles to the user directory + + Args: + room_id (str): A room_id that all users are joined to + users_with_profile (dict): Users to add to directory in the form of + mapping of user_id -> ProfileInfo + """ + if isinstance(self.database_engine, PostgresEngine): + # We weight the loclpart most highly, then display name and finally + # server name + sql = """ + INSERT INTO user_directory_search(user_id, vector) + VALUES (?, + setweight(to_tsvector('english', ?), 'A') + || setweight(to_tsvector('english', ?), 'D') + || setweight(to_tsvector('english', COALESCE(?, '')), 'B') + ) + """ + args = ( + ( + user_id, get_localpart_from_id(user_id), get_domain_from_id(user_id), + profile.display_name, + ) + for user_id, profile in users_with_profile.iteritems() + ) + elif isinstance(self.database_engine, Sqlite3Engine): + sql = """ + INSERT INTO user_directory_search(user_id, value) + VALUES (?,?) + """ + args = ( + ( + user_id, + "%s %s" % (user_id, p.display_name,) if p.display_name else user_id + ) + for user_id, p in users_with_profile.iteritems() + ) + else: + # This should be unreachable. + raise Exception("Unrecognized database engine") + + def _add_profiles_to_user_dir_txn(txn): + txn.executemany(sql, args) + self._simple_insert_many_txn( + txn, + table="user_directory", + values=[ + { + "user_id": user_id, + "room_id": room_id, + "display_name": profile.display_name, + "avatar_url": profile.avatar_url, + } + for user_id, profile in users_with_profile.iteritems() + ] + ) + for user_id in users_with_profile: + txn.call_after( + self.get_user_in_directory.invalidate, (user_id,) + ) + + return self.runInteraction( + "add_profiles_to_user_dir", _add_profiles_to_user_dir_txn + ) + + @defer.inlineCallbacks + def update_user_in_user_dir(self, user_id, room_id): + yield self._simple_update_one( + table="user_directory", + keyvalues={"user_id": user_id}, + updatevalues={"room_id": room_id}, + desc="update_user_in_user_dir", + ) + + @defer.inlineCallbacks + def update_user_in_public_user_list(self, user_id, room_id): + yield self._simple_update_one( + table="users_in_pubic_room", + keyvalues={"user_id": user_id}, + updatevalues={"room_id": room_id}, + desc="update_user_in_public_user_list", + ) + + def remove_from_user_dir(self, user_id): + def _remove_from_user_dir_txn(txn): + self._simple_delete_txn( + txn, + table="user_directory", + keyvalues={"user_id": user_id}, + ) + self._simple_delete_txn( + txn, + table="user_directory_search", + keyvalues={"user_id": user_id}, + ) + self._simple_delete_txn( + txn, + table="users_in_pubic_room", + keyvalues={"user_id": user_id}, + ) + txn.call_after( + self.get_user_in_directory.invalidate, (user_id,) + ) + txn.call_after( + self.get_user_in_public_room.invalidate, (user_id,) + ) + return self.runInteraction( + "remove_from_user_dir", _remove_from_user_dir_txn, + ) + + @defer.inlineCallbacks + def remove_from_user_in_public_room(self, user_id): + yield self._simple_delete( + table="users_in_pubic_room", + keyvalues={"user_id": user_id}, + desc="remove_from_user_in_public_room", + ) + self.get_user_in_public_room.invalidate((user_id,)) + + def get_users_in_public_due_to_room(self, room_id): + """Get all user_ids that are in the room directory becuase they're + in the given room_id + """ + return self._simple_select_onecol( + table="users_in_pubic_room", + keyvalues={"room_id": room_id}, + retcol="user_id", + desc="get_users_in_public_due_to_room", + ) + + def get_users_in_dir_due_to_room(self, room_id): + """Get all user_ids that are in the room directory becuase they're + in the given room_id + """ + return self._simple_select_onecol( + table="user_directory", + keyvalues={"room_id": room_id}, + retcol="user_id", + desc="get_users_in_dir_due_to_room", + ) + + def get_all_rooms(self): + """Get all room_ids we've ever known about + """ + return self._simple_select_onecol( + table="current_state_events", + keyvalues={}, + retcol="DISTINCT room_id", + desc="get_all_rooms", + ) + + 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.call_after(self.get_user_in_directory.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, 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> + } + ] + } + """ + + search_query = _parse_query(self.database_engine, search_term) + + if isinstance(self.database_engine, PostgresEngine): + # We order by rank and then if they have profile info + sql = """ + SELECT user_id, display_name, avatar_url + FROM user_directory_search + INNER JOIN user_directory USING (user_id) + INNER JOIN users_in_pubic_room USING (user_id) + WHERE vector @@ to_tsquery('english', ?) + ORDER BY + ts_rank_cd(vector, to_tsquery('english', ?), 1) DESC, + display_name IS NULL, + avatar_url IS NULL + LIMIT ? + """ + args = (search_query, search_query, limit + 1,) + elif isinstance(self.database_engine, Sqlite3Engine): + sql = """ + SELECT user_id, display_name, avatar_url + FROM user_directory_search + INNER JOIN user_directory USING (user_id) + INNER JOIN users_in_pubic_room USING (user_id) + WHERE value MATCH ? + ORDER BY + rank(matchinfo(user_directory_search)) DESC, + display_name IS NULL, + avatar_url IS NULL + LIMIT ? + """ + 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(database_engine, 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) + + if isinstance(database_engine, PostgresEngine): + return " & ".join("(%s:* | %s)" % (result, result,) for result in results) + elif isinstance(database_engine, Sqlite3Engine): + return " & ".join("(%s* | %s)" % (result, result,) for result in results) + else: + # This should be unreachable. + raise Exception("Unrecognized database engine") diff --git a/synapse/types.py b/synapse/types.py index 445bdcb4d7..111948540d 100644 --- a/synapse/types.py +++ b/synapse/types.py @@ -62,6 +62,13 @@ def get_domain_from_id(string): return string[idx + 1:] +def get_localpart_from_id(string): + idx = string.find(":") + if idx == -1: + raise SynapseError(400, "Invalid ID: %r" % (string,)) + return string[1:idx] + + class DomainSpecificString( namedtuple("DomainSpecificString", ("localpart", "domain")) ): diff --git a/synapse/util/caches/stream_change_cache.py b/synapse/util/caches/stream_change_cache.py index 70fe00ce0b..c498aee46c 100644 --- a/synapse/util/caches/stream_change_cache.py +++ b/synapse/util/caches/stream_change_cache.py @@ -89,6 +89,21 @@ class StreamChangeCache(object): return result + def has_any_entity_changed(self, stream_pos): + """Returns if any entity has changed + """ + assert type(stream_pos) is int + + if stream_pos >= self._earliest_known_stream_pos: + self.metrics.inc_hits() + if stream_pos >= max(self._cache): + return False + else: + return True + else: + self.metrics.inc_misses() + return True + def get_all_entities_changed(self, stream_pos): """Returns all entites that have had new things since the given position. If the position is too old it will return None. |