diff options
Diffstat (limited to 'synapse/storage/__init__.py')
| -rw-r--r-- | synapse/storage/__init__.py | 466 |
1 files changed, 4 insertions, 462 deletions
diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py index 30cba47717..8604746fb9 100644 --- a/synapse/storage/__init__.py +++ b/synapse/storage/__init__.py @@ -15,12 +15,9 @@ from twisted.internet import defer -from synapse.util.logutils import log_function -from synapse.api.constants import EventTypes - from .appservice import ApplicationServiceStore from .directory import DirectoryStore -from .feedback import FeedbackStore +from .events import EventsStore from .presence import PresenceStore from .profile import ProfileStore from .registration import RegistrationStore @@ -39,11 +36,6 @@ from .state import StateStore from .signatures import SignatureStore from .filtering import FilteringStore -from syutil.base64util import decode_base64 -from syutil.jsonutil import encode_canonical_json - -from synapse.crypto.event_signing import compute_event_reference_hash - import fnmatch import imp @@ -64,15 +56,8 @@ SCHEMA_VERSION = 14 dir_path = os.path.abspath(os.path.dirname(__file__)) -class _RollbackButIsFineException(Exception): - """ This exception is used to rollback a transaction without implying - something went wrong. - """ - pass - - class DataStore(RoomMemberStore, RoomStore, - RegistrationStore, StreamStore, ProfileStore, FeedbackStore, + RegistrationStore, StreamStore, ProfileStore, PresenceStore, TransactionStore, DirectoryStore, KeyStore, StateStore, SignatureStore, ApplicationServiceStore, @@ -81,7 +66,8 @@ class DataStore(RoomMemberStore, RoomStore, RejectionsStore, FilteringStore, PusherStore, - PushRuleStore + PushRuleStore, + EventsStore, ): def __init__(self, hs): @@ -94,412 +80,6 @@ class DataStore(RoomMemberStore, RoomStore, self._next_stream_id_lock = threading.Lock() self._next_stream_id = int(hs.get_clock().time_msec()) * 1000 - @defer.inlineCallbacks - @log_function - def persist_event(self, event, context, backfilled=False, - is_new_state=True, current_state=None): - stream_ordering = None - if backfilled: - if not self.min_token_deferred.called: - yield self.min_token_deferred - self.min_token -= 1 - stream_ordering = self.min_token - - try: - yield self.runInteraction( - "persist_event", - self._persist_event_txn, - event=event, - context=context, - backfilled=backfilled, - stream_ordering=stream_ordering, - is_new_state=is_new_state, - current_state=current_state, - ) - except _RollbackButIsFineException: - pass - - @defer.inlineCallbacks - def get_event(self, event_id, check_redacted=True, - get_prev_content=False, allow_rejected=False, - allow_none=False): - """Get an event from the database by event_id. - - Args: - event_id (str): The event_id of the event to fetch - check_redacted (bool): If True, check if event has been redacted - and redact it. - get_prev_content (bool): If True and event is a state event, - include the previous states content in the unsigned field. - allow_rejected (bool): If True return rejected events. - allow_none (bool): If True, return None if no event found, if - False throw an exception. - - Returns: - Deferred : A FrozenEvent. - """ - event = yield self.runInteraction( - "get_event", self._get_event_txn, - event_id, - check_redacted=check_redacted, - get_prev_content=get_prev_content, - allow_rejected=allow_rejected, - ) - - if not event and not allow_none: - raise RuntimeError("Could not find event %s" % (event_id,)) - - defer.returnValue(event) - - @log_function - def _persist_event_txn(self, txn, event, context, backfilled, - stream_ordering=None, is_new_state=True, - current_state=None): - - # Remove the any existing cache entries for the event_id - self._get_event_cache.pop(event.event_id) - - # We purposefully do this first since if we include a `current_state` - # key, we *want* to update the `current_state_events` table - if current_state: - txn.execute( - "DELETE FROM current_state_events WHERE room_id = ?", - (event.room_id,) - ) - - for s in current_state: - self._simple_insert_txn( - txn, - "current_state_events", - { - "event_id": s.event_id, - "room_id": s.room_id, - "type": s.type, - "state_key": s.state_key, - }, - ) - - if event.is_state() and is_new_state: - if not backfilled and not context.rejected: - self._simple_insert_txn( - txn, - table="state_forward_extremities", - values={ - "event_id": event.event_id, - "room_id": event.room_id, - "type": event.type, - "state_key": event.state_key, - }, - ) - - for prev_state_id, _ in event.prev_state: - self._simple_delete_txn( - txn, - table="state_forward_extremities", - keyvalues={ - "event_id": prev_state_id, - } - ) - - outlier = event.internal_metadata.is_outlier() - - if not outlier: - self._store_state_groups_txn(txn, event, context) - - self._update_min_depth_for_room_txn( - txn, - event.room_id, - event.depth - ) - - self._handle_prev_events( - txn, - outlier=outlier, - event_id=event.event_id, - prev_events=event.prev_events, - room_id=event.room_id, - ) - - have_persisted = self._simple_select_one_onecol_txn( - txn, - table="event_json", - keyvalues={"event_id": event.event_id}, - retcol="event_id", - allow_none=True, - ) - - metadata_json = encode_canonical_json( - event.internal_metadata.get_dict() - ) - - # If we have already persisted this event, we don't need to do any - # more processing. - # The processing above must be done on every call to persist event, - # since they might not have happened on previous calls. For example, - # if we are persisting an event that we had persisted as an outlier, - # but is no longer one. - if have_persisted: - if not outlier: - sql = ( - "UPDATE event_json SET internal_metadata = ?" - " WHERE event_id = ?" - ) - txn.execute( - sql, - (metadata_json.decode("UTF-8"), event.event_id,) - ) - - sql = ( - "UPDATE events SET outlier = 0" - " WHERE event_id = ?" - ) - txn.execute( - sql, - (event.event_id,) - ) - return - - if event.type == EventTypes.Member: - self._store_room_member_txn(txn, event) - elif event.type == EventTypes.Feedback: - self._store_feedback_txn(txn, event) - elif event.type == EventTypes.Name: - self._store_room_name_txn(txn, event) - elif event.type == EventTypes.Topic: - self._store_room_topic_txn(txn, event) - elif event.type == EventTypes.Redaction: - self._store_redaction(txn, event) - - event_dict = { - k: v - for k, v in event.get_dict().items() - if k not in [ - "redacted", - "redacted_because", - ] - } - - self._simple_insert_txn( - txn, - table="event_json", - values={ - "event_id": event.event_id, - "room_id": event.room_id, - "internal_metadata": metadata_json.decode("UTF-8"), - "json": encode_canonical_json(event_dict).decode("UTF-8"), - }, - ) - - content = encode_canonical_json( - event.content - ).decode("UTF-8") - - vals = { - "topological_ordering": event.depth, - "event_id": event.event_id, - "type": event.type, - "room_id": event.room_id, - "content": content, - "processed": True, - "outlier": outlier, - "depth": event.depth, - } - - if stream_ordering is None: - stream_ordering = self.get_next_stream_id() - - - unrec = { - k: v - for k, v in event.get_dict().items() - if k not in vals.keys() and k not in [ - "redacted", - "redacted_because", - "signatures", - "hashes", - "prev_events", - ] - } - - vals["unrecognized_keys"] = encode_canonical_json( - unrec - ).decode("UTF-8") - - sql = ( - "INSERT INTO events" - " (stream_ordering, topological_ordering, event_id, type," - " room_id, content, processed, outlier, depth)" - " VALUES (%s,?,?,?,?,?,?,?,?)" - ) % (stream_ordering,) - - txn.execute( - sql, - (event.depth, event.event_id, event.type, event.room_id, - content, True, outlier, event.depth) - ) - - if context.rejected: - self._store_rejections_txn(txn, event.event_id, context.rejected) - - if event.is_state(): - vals = { - "event_id": event.event_id, - "room_id": event.room_id, - "type": event.type, - "state_key": event.state_key, - } - - # TODO: How does this work with backfilling? - if hasattr(event, "replaces_state"): - vals["prev_state"] = event.replaces_state - - self._simple_insert_txn( - txn, - "state_events", - vals, - ) - - if is_new_state and not context.rejected: - self._simple_insert_txn( - txn, - "current_state_events", - { - "event_id": event.event_id, - "room_id": event.room_id, - "type": event.type, - "state_key": event.state_key, - }, - ) - - for e_id, h in event.prev_state: - self._simple_insert_txn( - txn, - table="event_edges", - values={ - "event_id": event.event_id, - "prev_event_id": e_id, - "room_id": event.room_id, - "is_state": 1, - }, - ) - - for hash_alg, hash_base64 in event.hashes.items(): - hash_bytes = decode_base64(hash_base64) - self._store_event_content_hash_txn( - txn, event.event_id, hash_alg, hash_bytes, - ) - - for prev_event_id, prev_hashes in event.prev_events: - for alg, hash_base64 in prev_hashes.items(): - hash_bytes = decode_base64(hash_base64) - self._store_prev_event_hash_txn( - txn, event.event_id, prev_event_id, alg, hash_bytes - ) - - for auth_id, _ in event.auth_events: - self._simple_insert_txn( - txn, - table="event_auth", - values={ - "event_id": event.event_id, - "room_id": event.room_id, - "auth_id": auth_id, - }, - ) - - (ref_alg, ref_hash_bytes) = compute_event_reference_hash(event) - self._store_event_reference_hash_txn( - txn, event.event_id, ref_alg, ref_hash_bytes - ) - - def _store_redaction(self, txn, event): - # invalidate the cache for the redacted event - self._get_event_cache.pop(event.redacts) - txn.execute( - "INSERT INTO redactions (event_id, redacts) VALUES (?,?)", - (event.event_id, event.redacts) - ) - - @defer.inlineCallbacks - def get_current_state(self, room_id, event_type=None, state_key=""): - del_sql = ( - "SELECT event_id FROM redactions WHERE redacts = e.event_id " - "LIMIT 1" - ) - - sql = ( - "SELECT e.*, (%(redacted)s) AS redacted FROM events as e " - "INNER JOIN current_state_events as c ON e.event_id = c.event_id " - "INNER JOIN state_events as s ON e.event_id = s.event_id " - "WHERE c.room_id = ? " - ) % { - "redacted": del_sql, - } - - if event_type and state_key is not None: - sql += " AND s.type = ? AND s.state_key = ? " - args = (room_id, event_type, state_key) - elif event_type: - sql += " AND s.type = ?" - args = (room_id, event_type) - else: - args = (room_id, ) - - results = yield self._execute_and_decode("get_current_state", sql, *args) - - events = yield self._parse_events(results) - defer.returnValue(events) - - @defer.inlineCallbacks - def get_room_name_and_aliases(self, room_id): - del_sql = ( - "SELECT event_id FROM redactions WHERE redacts = e.event_id " - "LIMIT 1" - ) - - sql = ( - "SELECT e.*, (%(redacted)s) AS redacted FROM events as e " - "INNER JOIN current_state_events as c ON e.event_id = c.event_id " - "INNER JOIN state_events as s ON e.event_id = s.event_id " - "WHERE c.room_id = ? " - ) % { - "redacted": del_sql, - } - - sql += " AND ((s.type = 'm.room.name' AND s.state_key = '')" - sql += " OR s.type = 'm.room.aliases')" - args = (room_id,) - - results = yield self._execute_and_decode("get_current_state", sql, *args) - - events = yield self._parse_events(results) - - name = None - aliases = [] - - for e in events: - if e.type == 'm.room.name': - if 'name' in e.content: - name = e.content['name'] - elif e.type == 'm.room.aliases': - if 'aliases' in e.content: - aliases.extend(e.content['aliases']) - - defer.returnValue((name, aliases)) - - @defer.inlineCallbacks - def _get_min_token(self): - row = yield self._execute( - "_get_min_token", None, "SELECT MIN(stream_ordering) FROM events" - ) - - self.min_token = row[0][0] if row and row[0] and row[0][0] else -1 - self.min_token = min(self.min_token, -1) - - logger.debug("min_token is: %s", self.min_token) - - defer.returnValue(self.min_token) - def insert_client_ip(self, user, access_token, device_id, ip, user_agent): return self._simple_insert( "user_ips", @@ -523,44 +103,6 @@ class DataStore(RoomMemberStore, RoomStore, ], ) - def have_events(self, event_ids): - """Given a list of event ids, check if we have already processed them. - - Returns: - dict: Has an entry for each event id we already have seen. Maps to - the rejected reason string if we rejected the event, else maps to - None. - """ - if not event_ids: - return defer.succeed({}) - - def f(txn): - sql = ( - "SELECT e.event_id, reason FROM events as e " - "LEFT JOIN rejections as r ON e.event_id = r.event_id " - "WHERE e.event_id = ?" - ) - - res = {} - for event_id in event_ids: - txn.execute(sql, (event_id,)) - row = txn.fetchone() - if row: - _, rejected = row - res[event_id] = rejected - - return res - - return self.runInteraction( - "have_events", f, - ) - - def get_next_stream_id(self): - with self._next_stream_id_lock: - i = self._next_stream_id - self._next_stream_id += 1 - return i - def read_schema(path): """ Read the named database schema. |