diff options
Diffstat (limited to 'synapse/storage/push_rule.py')
| -rw-r--r-- | synapse/storage/push_rule.py | 702 |
1 files changed, 0 insertions, 702 deletions
diff --git a/synapse/storage/push_rule.py b/synapse/storage/push_rule.py index a6517c4cf3..f47cec0d86 100644 --- a/synapse/storage/push_rule.py +++ b/synapse/storage/push_rule.py @@ -14,708 +14,6 @@ # See the License for the specific language governing permissions and # limitations under the License. -import abc -import logging - -from canonicaljson import json - -from twisted.internet import defer - -from synapse.push.baserules import list_with_base_rules -from synapse.storage.appservice import ApplicationServiceWorkerStore -from synapse.storage.pusher import PusherWorkerStore -from synapse.storage.receipts import ReceiptsWorkerStore -from synapse.storage.roommember import RoomMemberWorkerStore -from synapse.util.caches.descriptors import cachedInlineCallbacks, cachedList -from synapse.util.caches.stream_change_cache import StreamChangeCache - -from ._base import SQLBaseStore - -logger = logging.getLogger(__name__) - - -def _load_rules(rawrules, enabled_map): - ruleslist = [] - for rawrule in rawrules: - rule = dict(rawrule) - rule["conditions"] = json.loads(rawrule["conditions"]) - rule["actions"] = json.loads(rawrule["actions"]) - ruleslist.append(rule) - - # We're going to be mutating this a lot, so do a deep copy - rules = list(list_with_base_rules(ruleslist)) - - for i, rule in enumerate(rules): - rule_id = rule["rule_id"] - if rule_id in enabled_map: - if rule.get("enabled", True) != bool(enabled_map[rule_id]): - # Rules are cached across users. - rule = dict(rule) - rule["enabled"] = bool(enabled_map[rule_id]) - rules[i] = rule - - return rules - - -class PushRulesWorkerStore( - ApplicationServiceWorkerStore, - ReceiptsWorkerStore, - PusherWorkerStore, - RoomMemberWorkerStore, - SQLBaseStore, -): - """This is an abstract base class where subclasses must implement - `get_max_push_rules_stream_id` which can be called in the initializer. - """ - - # This ABCMeta metaclass ensures that we cannot be instantiated without - # the abstract methods being implemented. - __metaclass__ = abc.ABCMeta - - def __init__(self, db_conn, hs): - super(PushRulesWorkerStore, self).__init__(db_conn, hs) - - push_rules_prefill, push_rules_id = self._get_cache_dict( - db_conn, - "push_rules_stream", - entity_column="user_id", - stream_column="stream_id", - max_value=self.get_max_push_rules_stream_id(), - ) - - self.push_rules_stream_cache = StreamChangeCache( - "PushRulesStreamChangeCache", - push_rules_id, - prefilled_cache=push_rules_prefill, - ) - - @abc.abstractmethod - def get_max_push_rules_stream_id(self): - """Get the position of the push rules stream. - - Returns: - int - """ - raise NotImplementedError() - - @cachedInlineCallbacks(max_entries=5000) - def get_push_rules_for_user(self, user_id): - rows = yield self._simple_select_list( - table="push_rules", - keyvalues={"user_name": user_id}, - retcols=( - "user_name", - "rule_id", - "priority_class", - "priority", - "conditions", - "actions", - ), - desc="get_push_rules_enabled_for_user", - ) - - rows.sort(key=lambda row: (-int(row["priority_class"]), -int(row["priority"]))) - - enabled_map = yield self.get_push_rules_enabled_for_user(user_id) - - rules = _load_rules(rows, enabled_map) - - return rules - - @cachedInlineCallbacks(max_entries=5000) - def get_push_rules_enabled_for_user(self, user_id): - results = yield self._simple_select_list( - table="push_rules_enable", - keyvalues={"user_name": user_id}, - retcols=("user_name", "rule_id", "enabled"), - desc="get_push_rules_enabled_for_user", - ) - return {r["rule_id"]: False if r["enabled"] == 0 else True for r in results} - - def have_push_rules_changed_for_user(self, user_id, last_id): - if not self.push_rules_stream_cache.has_entity_changed(user_id, last_id): - return defer.succeed(False) - else: - - def have_push_rules_changed_txn(txn): - sql = ( - "SELECT COUNT(stream_id) FROM push_rules_stream" - " WHERE user_id = ? AND ? < stream_id" - ) - txn.execute(sql, (user_id, last_id)) - count, = txn.fetchone() - return bool(count) - - return self.runInteraction( - "have_push_rules_changed", have_push_rules_changed_txn - ) - - @cachedList( - cached_method_name="get_push_rules_for_user", - list_name="user_ids", - num_args=1, - inlineCallbacks=True, - ) - def bulk_get_push_rules(self, user_ids): - if not user_ids: - return {} - - results = {user_id: [] for user_id in user_ids} - - rows = yield self._simple_select_many_batch( - table="push_rules", - column="user_name", - iterable=user_ids, - retcols=("*",), - desc="bulk_get_push_rules", - ) - - rows.sort(key=lambda row: (-int(row["priority_class"]), -int(row["priority"]))) - - for row in rows: - results.setdefault(row["user_name"], []).append(row) - - enabled_map_by_user = yield self.bulk_get_push_rules_enabled(user_ids) - - for user_id, rules in results.items(): - results[user_id] = _load_rules(rules, enabled_map_by_user.get(user_id, {})) - - return results - - @defer.inlineCallbacks - def move_push_rule_from_room_to_room(self, new_room_id, user_id, rule): - """Move a single push rule from one room to another for a specific user. - - Args: - new_room_id (str): ID of the new room. - user_id (str): ID of user the push rule belongs to. - rule (Dict): A push rule. - """ - # Create new rule id - rule_id_scope = "/".join(rule["rule_id"].split("/")[:-1]) - new_rule_id = rule_id_scope + "/" + new_room_id - - # Change room id in each condition - for condition in rule.get("conditions", []): - if condition.get("key") == "room_id": - condition["pattern"] = new_room_id - - # Add the rule for the new room - yield self.add_push_rule( - user_id=user_id, - rule_id=new_rule_id, - priority_class=rule["priority_class"], - conditions=rule["conditions"], - actions=rule["actions"], - ) - - # Delete push rule for the old room - yield self.delete_push_rule(user_id, rule["rule_id"]) - - @defer.inlineCallbacks - def move_push_rules_from_room_to_room_for_user( - self, old_room_id, new_room_id, user_id - ): - """Move all of the push rules from one room to another for a specific - user. - - Args: - old_room_id (str): ID of the old room. - new_room_id (str): ID of the new room. - user_id (str): ID of user to copy push rules for. - """ - # Retrieve push rules for this user - user_push_rules = yield self.get_push_rules_for_user(user_id) - - # Get rules relating to the old room, move them to the new room, then - # delete them from the old room - for rule in user_push_rules: - conditions = rule.get("conditions", []) - if any( - (c.get("key") == "room_id" and c.get("pattern") == old_room_id) - for c in conditions - ): - self.move_push_rule_from_room_to_room(new_room_id, user_id, rule) - - @defer.inlineCallbacks - def bulk_get_push_rules_for_room(self, event, context): - state_group = context.state_group - if not state_group: - # If state_group is None it means it has yet to be assigned a - # state group, i.e. we need to make sure that calls with a state_group - # of None don't hit previous cached calls with a None state_group. - # To do this we set the state_group to a new object as object() != object() - state_group = object() - - current_state_ids = yield context.get_current_state_ids(self) - result = yield self._bulk_get_push_rules_for_room( - event.room_id, state_group, current_state_ids, event=event - ) - return result - - @cachedInlineCallbacks(num_args=2, cache_context=True) - def _bulk_get_push_rules_for_room( - self, room_id, state_group, current_state_ids, cache_context, event=None - ): - # We don't use `state_group`, its there so that we can cache based - # on it. However, its important that its never None, since two current_state's - # with a state_group of None are likely to be different. - # See bulk_get_push_rules_for_room for how we work around this. - assert state_group is not None - - # We also will want to generate notifs for other people in the room so - # their unread countss are correct in the event stream, but to avoid - # generating them for bot / AS users etc, we only do so for people who've - # sent a read receipt into the room. - - users_in_room = yield self._get_joined_users_from_context( - room_id, - state_group, - current_state_ids, - on_invalidate=cache_context.invalidate, - event=event, - ) - - # We ignore app service users for now. This is so that we don't fill - # up the `get_if_users_have_pushers` cache with AS entries that we - # know don't have pushers, nor even read receipts. - local_users_in_room = set( - u - for u in users_in_room - if self.hs.is_mine_id(u) - and not self.get_if_app_services_interested_in_user(u) - ) - - # users in the room who have pushers need to get push rules run because - # that's how their pushers work - if_users_with_pushers = yield self.get_if_users_have_pushers( - local_users_in_room, on_invalidate=cache_context.invalidate - ) - user_ids = set( - uid for uid, have_pusher in if_users_with_pushers.items() if have_pusher - ) - - users_with_receipts = yield self.get_users_with_read_receipts_in_room( - room_id, on_invalidate=cache_context.invalidate - ) - - # any users with pushers must be ours: they have pushers - for uid in users_with_receipts: - if uid in local_users_in_room: - user_ids.add(uid) - - rules_by_user = yield self.bulk_get_push_rules( - user_ids, on_invalidate=cache_context.invalidate - ) - - rules_by_user = {k: v for k, v in rules_by_user.items() if v is not None} - - return rules_by_user - - @cachedList( - cached_method_name="get_push_rules_enabled_for_user", - list_name="user_ids", - num_args=1, - inlineCallbacks=True, - ) - def bulk_get_push_rules_enabled(self, user_ids): - if not user_ids: - return {} - - results = {user_id: {} for user_id in user_ids} - - rows = yield self._simple_select_many_batch( - table="push_rules_enable", - column="user_name", - iterable=user_ids, - retcols=("user_name", "rule_id", "enabled"), - desc="bulk_get_push_rules_enabled", - ) - for row in rows: - enabled = bool(row["enabled"]) - results.setdefault(row["user_name"], {})[row["rule_id"]] = enabled - return results - - -class PushRuleStore(PushRulesWorkerStore): - @defer.inlineCallbacks - def add_push_rule( - self, - user_id, - rule_id, - priority_class, - conditions, - actions, - before=None, - after=None, - ): - conditions_json = json.dumps(conditions) - actions_json = json.dumps(actions) - with self._push_rules_stream_id_gen.get_next() as ids: - stream_id, event_stream_ordering = ids - if before or after: - yield self.runInteraction( - "_add_push_rule_relative_txn", - self._add_push_rule_relative_txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - priority_class, - conditions_json, - actions_json, - before, - after, - ) - else: - yield self.runInteraction( - "_add_push_rule_highest_priority_txn", - self._add_push_rule_highest_priority_txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - priority_class, - conditions_json, - actions_json, - ) - - def _add_push_rule_relative_txn( - self, - txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - priority_class, - conditions_json, - actions_json, - before, - after, - ): - # Lock the table since otherwise we'll have annoying races between the - # SELECT here and the UPSERT below. - self.database_engine.lock_table(txn, "push_rules") - - relative_to_rule = before or after - - res = self._simple_select_one_txn( - txn, - table="push_rules", - keyvalues={"user_name": user_id, "rule_id": relative_to_rule}, - retcols=["priority_class", "priority"], - allow_none=True, - ) - - if not res: - raise RuleNotFoundException( - "before/after rule not found: %s" % (relative_to_rule,) - ) - - base_priority_class = res["priority_class"] - base_rule_priority = res["priority"] - - if base_priority_class != priority_class: - raise InconsistentRuleException( - "Given priority class does not match class of relative rule" - ) - - if before: - # Higher priority rules are executed first, So adding a rule before - # a rule means giving it a higher priority than that rule. - new_rule_priority = base_rule_priority + 1 - else: - # We increment the priority of the existing rules to make space for - # the new rule. Therefore if we want this rule to appear after - # an existing rule we give it the priority of the existing rule, - # and then increment the priority of the existing rule. - new_rule_priority = base_rule_priority - - sql = ( - "UPDATE push_rules SET priority = priority + 1" - " WHERE user_name = ? AND priority_class = ? AND priority >= ?" - ) - - txn.execute(sql, (user_id, priority_class, new_rule_priority)) - - self._upsert_push_rule_txn( - txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - priority_class, - new_rule_priority, - conditions_json, - actions_json, - ) - - def _add_push_rule_highest_priority_txn( - self, - txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - priority_class, - conditions_json, - actions_json, - ): - # Lock the table since otherwise we'll have annoying races between the - # SELECT here and the UPSERT below. - self.database_engine.lock_table(txn, "push_rules") - - # find the highest priority rule in that class - sql = ( - "SELECT COUNT(*), MAX(priority) FROM push_rules" - " WHERE user_name = ? and priority_class = ?" - ) - txn.execute(sql, (user_id, priority_class)) - res = txn.fetchall() - (how_many, highest_prio) = res[0] - - new_prio = 0 - if how_many > 0: - new_prio = highest_prio + 1 - - self._upsert_push_rule_txn( - txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - priority_class, - new_prio, - conditions_json, - actions_json, - ) - - def _upsert_push_rule_txn( - self, - txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - priority_class, - priority, - conditions_json, - actions_json, - update_stream=True, - ): - """Specialised version of _simple_upsert_txn that picks a push_rule_id - using the _push_rule_id_gen if it needs to insert the rule. It assumes - that the "push_rules" table is locked""" - - sql = ( - "UPDATE push_rules" - " SET priority_class = ?, priority = ?, conditions = ?, actions = ?" - " WHERE user_name = ? AND rule_id = ?" - ) - - txn.execute( - sql, - (priority_class, priority, conditions_json, actions_json, user_id, rule_id), - ) - - if txn.rowcount == 0: - # We didn't update a row with the given rule_id so insert one - push_rule_id = self._push_rule_id_gen.get_next() - - self._simple_insert_txn( - txn, - table="push_rules", - values={ - "id": push_rule_id, - "user_name": user_id, - "rule_id": rule_id, - "priority_class": priority_class, - "priority": priority, - "conditions": conditions_json, - "actions": actions_json, - }, - ) - - if update_stream: - self._insert_push_rules_update_txn( - txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - op="ADD", - data={ - "priority_class": priority_class, - "priority": priority, - "conditions": conditions_json, - "actions": actions_json, - }, - ) - - @defer.inlineCallbacks - def delete_push_rule(self, user_id, rule_id): - """ - Delete a push rule. Args specify the row to be deleted and can be - any of the columns in the push_rule table, but below are the - standard ones - - Args: - user_id (str): The matrix ID of the push rule owner - rule_id (str): The rule_id of the rule to be deleted - """ - - def delete_push_rule_txn(txn, stream_id, event_stream_ordering): - self._simple_delete_one_txn( - txn, "push_rules", {"user_name": user_id, "rule_id": rule_id} - ) - - self._insert_push_rules_update_txn( - txn, stream_id, event_stream_ordering, user_id, rule_id, op="DELETE" - ) - - with self._push_rules_stream_id_gen.get_next() as ids: - stream_id, event_stream_ordering = ids - yield self.runInteraction( - "delete_push_rule", - delete_push_rule_txn, - stream_id, - event_stream_ordering, - ) - - @defer.inlineCallbacks - def set_push_rule_enabled(self, user_id, rule_id, enabled): - with self._push_rules_stream_id_gen.get_next() as ids: - stream_id, event_stream_ordering = ids - yield self.runInteraction( - "_set_push_rule_enabled_txn", - self._set_push_rule_enabled_txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - enabled, - ) - - def _set_push_rule_enabled_txn( - self, txn, stream_id, event_stream_ordering, user_id, rule_id, enabled - ): - new_id = self._push_rules_enable_id_gen.get_next() - self._simple_upsert_txn( - txn, - "push_rules_enable", - {"user_name": user_id, "rule_id": rule_id}, - {"enabled": 1 if enabled else 0}, - {"id": new_id}, - ) - - self._insert_push_rules_update_txn( - txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - op="ENABLE" if enabled else "DISABLE", - ) - - @defer.inlineCallbacks - def set_push_rule_actions(self, user_id, rule_id, actions, is_default_rule): - actions_json = json.dumps(actions) - - def set_push_rule_actions_txn(txn, stream_id, event_stream_ordering): - if is_default_rule: - # Add a dummy rule to the rules table with the user specified - # actions. - priority_class = -1 - priority = 1 - self._upsert_push_rule_txn( - txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - priority_class, - priority, - "[]", - actions_json, - update_stream=False, - ) - else: - self._simple_update_one_txn( - txn, - "push_rules", - {"user_name": user_id, "rule_id": rule_id}, - {"actions": actions_json}, - ) - - self._insert_push_rules_update_txn( - txn, - stream_id, - event_stream_ordering, - user_id, - rule_id, - op="ACTIONS", - data={"actions": actions_json}, - ) - - with self._push_rules_stream_id_gen.get_next() as ids: - stream_id, event_stream_ordering = ids - yield self.runInteraction( - "set_push_rule_actions", - set_push_rule_actions_txn, - stream_id, - event_stream_ordering, - ) - - def _insert_push_rules_update_txn( - self, txn, stream_id, event_stream_ordering, user_id, rule_id, op, data=None - ): - values = { - "stream_id": stream_id, - "event_stream_ordering": event_stream_ordering, - "user_id": user_id, - "rule_id": rule_id, - "op": op, - } - if data is not None: - values.update(data) - - self._simple_insert_txn(txn, "push_rules_stream", values=values) - - txn.call_after(self.get_push_rules_for_user.invalidate, (user_id,)) - txn.call_after(self.get_push_rules_enabled_for_user.invalidate, (user_id,)) - txn.call_after( - self.push_rules_stream_cache.entity_has_changed, user_id, stream_id - ) - - def get_all_push_rule_updates(self, last_id, current_id, limit): - """Get all the push rules changes that have happend on the server""" - if last_id == current_id: - return defer.succeed([]) - - def get_all_push_rule_updates_txn(txn): - sql = ( - "SELECT stream_id, event_stream_ordering, user_id, rule_id," - " op, priority_class, priority, conditions, actions" - " FROM push_rules_stream" - " WHERE ? < stream_id AND stream_id <= ?" - " ORDER BY stream_id ASC LIMIT ?" - ) - txn.execute(sql, (last_id, current_id, limit)) - return txn.fetchall() - - return self.runInteraction( - "get_all_push_rule_updates", get_all_push_rule_updates_txn - ) - - def get_push_rules_stream_token(self): - """Get the position of the push rules stream. - Returns a pair of a stream id for the push_rules stream and the - room stream ordering it corresponds to.""" - return self._push_rules_stream_id_gen.get_current_token() - - def get_max_push_rules_stream_id(self): - return self.get_push_rules_stream_token()[0] - class RuleNotFoundException(Exception): pass |