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Limit the number of events that can be created on a given room concurretnly
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@ -24,7 +24,7 @@ from synapse.push.action_generator import ActionGenerator
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from synapse.types import (
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from synapse.types import (
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UserID, RoomAlias, RoomStreamToken, get_domain_from_id
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UserID, RoomAlias, RoomStreamToken, get_domain_from_id
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)
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)
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from synapse.util.async import run_on_reactor, ReadWriteLock
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from synapse.util.async import run_on_reactor, ReadWriteLock, Limiter
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from synapse.util.logcontext import preserve_fn
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from synapse.util.logcontext import preserve_fn
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from synapse.util.metrics import measure_func
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from synapse.util.metrics import measure_func
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from synapse.visibility import filter_events_for_client
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from synapse.visibility import filter_events_for_client
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@ -50,6 +50,8 @@ class MessageHandler(BaseHandler):
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self.pagination_lock = ReadWriteLock()
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self.pagination_lock = ReadWriteLock()
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self.limiter = Limiter(max_count=5)
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@defer.inlineCallbacks
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@defer.inlineCallbacks
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def purge_history(self, room_id, event_id):
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def purge_history(self, room_id, event_id):
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event = yield self.store.get_event(event_id)
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event = yield self.store.get_event(event_id)
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@ -191,6 +193,7 @@ class MessageHandler(BaseHandler):
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"""
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"""
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builder = self.event_builder_factory.new(event_dict)
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builder = self.event_builder_factory.new(event_dict)
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with (yield self.limiter.queue(builder.room_id)):
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self.validator.validate_new(builder)
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self.validator.validate_new(builder)
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if builder.type == EventTypes.Member:
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if builder.type == EventTypes.Member:
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@ -221,6 +224,7 @@ class MessageHandler(BaseHandler):
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builder=builder,
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builder=builder,
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prev_event_ids=prev_event_ids,
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prev_event_ids=prev_event_ids,
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)
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)
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defer.returnValue((event, context))
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defer.returnValue((event, context))
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@defer.inlineCallbacks
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@defer.inlineCallbacks
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