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Diffstat (limited to 'synapse/storage/databases/main/pusher.py')
| -rw-r--r-- | synapse/storage/databases/main/pusher.py | 356 |
1 files changed, 356 insertions, 0 deletions
diff --git a/synapse/storage/databases/main/pusher.py b/synapse/storage/databases/main/pusher.py new file mode 100644 index 0000000000..b5200fbe79 --- /dev/null +++ b/synapse/storage/databases/main/pusher.py @@ -0,0 +1,356 @@ +# -*- coding: utf-8 -*- +# Copyright 2014-2016 OpenMarket Ltd +# Copyright 2018 New Vector 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 typing import Iterable, Iterator, List, Tuple + +from canonicaljson import encode_canonical_json + +from twisted.internet import defer + +from synapse.storage._base import SQLBaseStore, db_to_json +from synapse.util.caches.descriptors import cachedInlineCallbacks, cachedList + +logger = logging.getLogger(__name__) + + +class PusherWorkerStore(SQLBaseStore): + def _decode_pushers_rows(self, rows: Iterable[dict]) -> Iterator[dict]: + """JSON-decode the data in the rows returned from the `pushers` table + + Drops any rows whose data cannot be decoded + """ + for r in rows: + dataJson = r["data"] + try: + r["data"] = db_to_json(dataJson) + except Exception as e: + logger.warning( + "Invalid JSON in data for pusher %d: %s, %s", + r["id"], + dataJson, + e.args[0], + ) + continue + + yield r + + @defer.inlineCallbacks + def user_has_pusher(self, user_id): + ret = yield self.db_pool.simple_select_one_onecol( + "pushers", {"user_name": user_id}, "id", allow_none=True + ) + return ret is not None + + def get_pushers_by_app_id_and_pushkey(self, app_id, pushkey): + return self.get_pushers_by({"app_id": app_id, "pushkey": pushkey}) + + def get_pushers_by_user_id(self, user_id): + return self.get_pushers_by({"user_name": user_id}) + + @defer.inlineCallbacks + def get_pushers_by(self, keyvalues): + ret = yield self.db_pool.simple_select_list( + "pushers", + keyvalues, + [ + "id", + "user_name", + "access_token", + "profile_tag", + "kind", + "app_id", + "app_display_name", + "device_display_name", + "pushkey", + "ts", + "lang", + "data", + "last_stream_ordering", + "last_success", + "failing_since", + ], + desc="get_pushers_by", + ) + return self._decode_pushers_rows(ret) + + @defer.inlineCallbacks + def get_all_pushers(self): + def get_pushers(txn): + txn.execute("SELECT * FROM pushers") + rows = self.db_pool.cursor_to_dict(txn) + + return self._decode_pushers_rows(rows) + + rows = yield self.db_pool.runInteraction("get_all_pushers", get_pushers) + return rows + + async def get_all_updated_pushers_rows( + self, instance_name: str, last_id: int, current_id: int, limit: int + ) -> Tuple[List[Tuple[int, tuple]], int, bool]: + """Get updates for pushers replication stream. + + Args: + instance_name: The writer we want to fetch updates from. Unused + here since there is only ever one writer. + last_id: The token to fetch updates from. Exclusive. + current_id: The token to fetch updates up to. Inclusive. + limit: The requested limit for the number of rows to return. The + function may return more or fewer rows. + + Returns: + A tuple consisting of: the updates, a token to use to fetch + subsequent updates, and whether we returned fewer rows than exists + between the requested tokens due to the limit. + + The token returned can be used in a subsequent call to this + function to get further updatees. + + The updates are a list of 2-tuples of stream ID and the row data + """ + + if last_id == current_id: + return [], current_id, False + + def get_all_updated_pushers_rows_txn(txn): + sql = """ + SELECT id, user_name, app_id, pushkey + FROM pushers + WHERE ? < id AND id <= ? + ORDER BY id ASC LIMIT ? + """ + txn.execute(sql, (last_id, current_id, limit)) + updates = [ + (stream_id, (user_name, app_id, pushkey, False)) + for stream_id, user_name, app_id, pushkey in txn + ] + + sql = """ + SELECT stream_id, user_id, app_id, pushkey + FROM deleted_pushers + WHERE ? < stream_id AND stream_id <= ? + ORDER BY stream_id ASC LIMIT ? + """ + txn.execute(sql, (last_id, current_id, limit)) + updates.extend( + (stream_id, (user_name, app_id, pushkey, True)) + for stream_id, user_name, app_id, pushkey in txn + ) + + updates.sort() # Sort so that they're ordered by stream id + + limited = False + upper_bound = current_id + if len(updates) >= limit: + limited = True + upper_bound = updates[-1][0] + + return updates, upper_bound, limited + + return await self.db_pool.runInteraction( + "get_all_updated_pushers_rows", get_all_updated_pushers_rows_txn + ) + + @cachedInlineCallbacks(num_args=1, max_entries=15000) + def get_if_user_has_pusher(self, user_id): + # This only exists for the cachedList decorator + raise NotImplementedError() + + @cachedList( + cached_method_name="get_if_user_has_pusher", + list_name="user_ids", + num_args=1, + inlineCallbacks=True, + ) + def get_if_users_have_pushers(self, user_ids): + rows = yield self.db_pool.simple_select_many_batch( + table="pushers", + column="user_name", + iterable=user_ids, + retcols=["user_name"], + desc="get_if_users_have_pushers", + ) + + result = {user_id: False for user_id in user_ids} + result.update({r["user_name"]: True for r in rows}) + + return result + + @defer.inlineCallbacks + def update_pusher_last_stream_ordering( + self, app_id, pushkey, user_id, last_stream_ordering + ): + yield self.db_pool.simple_update_one( + "pushers", + {"app_id": app_id, "pushkey": pushkey, "user_name": user_id}, + {"last_stream_ordering": last_stream_ordering}, + desc="update_pusher_last_stream_ordering", + ) + + @defer.inlineCallbacks + def update_pusher_last_stream_ordering_and_success( + self, app_id, pushkey, user_id, last_stream_ordering, last_success + ): + """Update the last stream ordering position we've processed up to for + the given pusher. + + Args: + app_id (str) + pushkey (str) + last_stream_ordering (int) + last_success (int) + + Returns: + Deferred[bool]: True if the pusher still exists; False if it has been deleted. + """ + updated = yield self.db_pool.simple_update( + table="pushers", + keyvalues={"app_id": app_id, "pushkey": pushkey, "user_name": user_id}, + updatevalues={ + "last_stream_ordering": last_stream_ordering, + "last_success": last_success, + }, + desc="update_pusher_last_stream_ordering_and_success", + ) + + return bool(updated) + + @defer.inlineCallbacks + def update_pusher_failing_since(self, app_id, pushkey, user_id, failing_since): + yield self.db_pool.simple_update( + table="pushers", + keyvalues={"app_id": app_id, "pushkey": pushkey, "user_name": user_id}, + updatevalues={"failing_since": failing_since}, + desc="update_pusher_failing_since", + ) + + @defer.inlineCallbacks + def get_throttle_params_by_room(self, pusher_id): + res = yield self.db_pool.simple_select_list( + "pusher_throttle", + {"pusher": pusher_id}, + ["room_id", "last_sent_ts", "throttle_ms"], + desc="get_throttle_params_by_room", + ) + + params_by_room = {} + for row in res: + params_by_room[row["room_id"]] = { + "last_sent_ts": row["last_sent_ts"], + "throttle_ms": row["throttle_ms"], + } + + return params_by_room + + @defer.inlineCallbacks + def set_throttle_params(self, pusher_id, room_id, params): + # no need to lock because `pusher_throttle` has a primary key on + # (pusher, room_id) so simple_upsert will retry + yield self.db_pool.simple_upsert( + "pusher_throttle", + {"pusher": pusher_id, "room_id": room_id}, + params, + desc="set_throttle_params", + lock=False, + ) + + +class PusherStore(PusherWorkerStore): + def get_pushers_stream_token(self): + return self._pushers_id_gen.get_current_token() + + @defer.inlineCallbacks + def add_pusher( + self, + user_id, + access_token, + kind, + app_id, + app_display_name, + device_display_name, + pushkey, + pushkey_ts, + lang, + data, + last_stream_ordering, + profile_tag="", + ): + with self._pushers_id_gen.get_next() as stream_id: + # no need to lock because `pushers` has a unique key on + # (app_id, pushkey, user_name) so simple_upsert will retry + yield self.db_pool.simple_upsert( + table="pushers", + keyvalues={"app_id": app_id, "pushkey": pushkey, "user_name": user_id}, + values={ + "access_token": access_token, + "kind": kind, + "app_display_name": app_display_name, + "device_display_name": device_display_name, + "ts": pushkey_ts, + "lang": lang, + "data": bytearray(encode_canonical_json(data)), + "last_stream_ordering": last_stream_ordering, + "profile_tag": profile_tag, + "id": stream_id, + }, + desc="add_pusher", + lock=False, + ) + + user_has_pusher = self.get_if_user_has_pusher.cache.get( + (user_id,), None, update_metrics=False + ) + + if user_has_pusher is not True: + # invalidate, since we the user might not have had a pusher before + yield self.db_pool.runInteraction( + "add_pusher", + self._invalidate_cache_and_stream, + self.get_if_user_has_pusher, + (user_id,), + ) + + @defer.inlineCallbacks + def delete_pusher_by_app_id_pushkey_user_id(self, app_id, pushkey, user_id): + def delete_pusher_txn(txn, stream_id): + self._invalidate_cache_and_stream( + txn, self.get_if_user_has_pusher, (user_id,) + ) + + self.db_pool.simple_delete_one_txn( + txn, + "pushers", + {"app_id": app_id, "pushkey": pushkey, "user_name": user_id}, + ) + + # it's possible for us to end up with duplicate rows for + # (app_id, pushkey, user_id) at different stream_ids, but that + # doesn't really matter. + self.db_pool.simple_insert_txn( + txn, + table="deleted_pushers", + values={ + "stream_id": stream_id, + "app_id": app_id, + "pushkey": pushkey, + "user_id": user_id, + }, + ) + + with self._pushers_id_gen.get_next() as stream_id: + yield self.db_pool.runInteraction( + "delete_pusher", delete_pusher_txn, stream_id + ) |