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synced 2024-10-01 11:49:51 -04:00
Provide a means to pass a timestamp to purge_history
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@ -8,9 +8,9 @@ Depending on the amount of history being purged a call to the API may take
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several minutes or longer. During this period users will not be able to
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paginate further back in the room from the point being purged from.
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The API is simply:
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The API is:
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``POST /_matrix/client/r0/admin/purge_history/<room_id>/<event_id>``
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``POST /_matrix/client/r0/admin/purge_history/<room_id>[/<event_id>]``
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including an ``access_token`` of a server admin.
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@ -25,3 +25,10 @@ To delete local events as well, set ``delete_local_events`` in the body:
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{
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"delete_local_events": true
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}
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The caller must specify the point in the room to purge up to. This can be
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specified by including an event_id in the URI, or by setting a
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``purge_up_to_event_id`` or ``purge_up_to_ts`` in the request body. If an event
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id is given, that event (and others at the same graph depth) will be retained.
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If ``purge_up_to_ts`` is given, it should be a timestamp since the unix epoch,
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in milliseconds.
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@ -52,16 +52,12 @@ class MessageHandler(BaseHandler):
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self.pagination_lock = ReadWriteLock()
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@defer.inlineCallbacks
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def purge_history(self, room_id, event_id, delete_local_events=False):
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event = yield self.store.get_event(event_id)
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if event.room_id != room_id:
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raise SynapseError(400, "Event is for wrong room.")
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depth = event.depth
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def purge_history(self, room_id, topological_ordering,
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delete_local_events=False):
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with (yield self.pagination_lock.write(room_id)):
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yield self.store.purge_history(room_id, depth, delete_local_events)
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yield self.store.purge_history(
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room_id, topological_ordering, delete_local_events,
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)
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@defer.inlineCallbacks
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def get_messages(self, requester, room_id=None, pagin_config=None,
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@ -17,7 +17,7 @@
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from twisted.internet import defer
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from synapse.api.constants import Membership
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from synapse.api.errors import AuthError, SynapseError
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from synapse.api.errors import AuthError, SynapseError, Codes
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from synapse.types import UserID, create_requester
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from synapse.http.servlet import parse_json_object_from_request
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@ -114,12 +114,18 @@ class PurgeMediaCacheRestServlet(ClientV1RestServlet):
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class PurgeHistoryRestServlet(ClientV1RestServlet):
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PATTERNS = client_path_patterns(
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"/admin/purge_history/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
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"/admin/purge_history/(?P<room_id>[^/]*)(/(?P<event_id>[^/]+))?"
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)
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def __init__(self, hs):
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"""
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Args:
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hs (synapse.server.HomeServer)
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"""
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super(PurgeHistoryRestServlet, self).__init__(hs)
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self.handlers = hs.get_handlers()
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self.store = hs.get_datastore()
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@defer.inlineCallbacks
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def on_POST(self, request, room_id, event_id):
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@ -133,8 +139,54 @@ class PurgeHistoryRestServlet(ClientV1RestServlet):
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delete_local_events = bool(body.get("delete_local_events", False))
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# establish the topological ordering we should keep events from. The
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# user can provide an event_id in the URL or the request body, or can
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# provide a timestamp in the request body.
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if event_id is None:
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event_id = body.get('purge_up_to_event_id')
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if event_id is not None:
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event = yield self.store.get_event(event_id)
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if event.room_id != room_id:
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raise SynapseError(400, "Event is for wrong room.")
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depth = event.depth
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logger.info(
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"[purge] purging up to depth %i (event_id %s)",
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depth, event_id,
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)
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elif 'purge_up_to_ts' in body:
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ts = body['purge_up_to_ts']
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if not isinstance(ts, int):
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raise SynapseError(
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400, "purge_up_to_ts must be an int",
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errcode=Codes.BAD_JSON,
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)
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stream_ordering = (
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yield self.store.find_first_stream_ordering_after_ts(ts)
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)
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(_, depth, _) = (
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yield self.store.get_room_event_after_stream_ordering(
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room_id, stream_ordering,
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)
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)
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logger.info(
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"[purge] purging up to depth %i (received_ts %i => "
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"stream_ordering %i)",
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depth, ts, stream_ordering,
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)
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else:
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raise SynapseError(
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400,
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"must specify purge_up_to_event_id or purge_up_to_ts",
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errcode=Codes.BAD_JSON,
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)
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yield self.handlers.message_handler.purge_history(
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room_id, event_id,
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room_id, depth,
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delete_local_events=delete_local_events,
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)
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@ -416,6 +416,33 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore):
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"get_recent_events_for_room", get_recent_events_for_room_txn
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)
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def get_room_event_after_stream_ordering(self, room_id, stream_ordering):
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"""Gets details of the first event in a room at or after a stream ordering
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Args:
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room_id (str):
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stream_ordering (int):
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Returns:
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Deferred[(int, int, str)]:
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(stream ordering, topological ordering, event_id)
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"""
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def _f(txn):
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sql = (
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"SELECT stream_ordering, topological_ordering, event_id"
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" FROM events"
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" WHERE room_id = ? AND stream_ordering >= ?"
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" AND NOT outlier"
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" ORDER BY stream_ordering"
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" LIMIT 1"
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)
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txn.execute(sql, (room_id, stream_ordering, ))
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return txn.fetchone()
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return self.runInteraction(
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"get_room_event_after_stream_ordering", _f,
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)
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@defer.inlineCallbacks
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def get_room_events_max_id(self, room_id=None):
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"""Returns the current token for rooms stream.
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