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Diffstat (limited to 'synapse/storage/user_directory.py')
| -rw-r--r-- | synapse/storage/user_directory.py | 412 |
1 files changed, 412 insertions, 0 deletions
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") |