actor: use LFU cache to break cycles

This commit is contained in:
kaniini 2018-11-18 14:20:17 +00:00
parent 9c55d307ab
commit 692cf89195

View file

@ -164,19 +164,27 @@ def distill_object_id(activity):
async def handle_relay(actor, data, request):
global CACHE
object_id = distill_object_id(data)
if object_id in CACHE:
logging.debug('>> already relayed %r as %r', object_id, CACHE[object_id])
return
# don't relay mastodon announces -- causes LRP fake direction issues
if data['type'] == 'Announce' and len(data.get('cc', [])) > 0:
return
activity_id = "https://{}/activities/{}".format(request.host, uuid.uuid4())
message = {
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Announce",
"to": ["https://{}/actor/followers".format(request.host)],
"actor": "https://{}/actor".format(request.host),
"object": object_id,
"id": "https://{}/activities/{}".format(request.host, uuid.uuid4())
"id": activity_id
}
logging.debug('>> relay: %r', message)
@ -186,6 +194,8 @@ async def handle_relay(actor, data, request):
futures = [push_message_to_actor({'inbox': inbox}, message, 'https://{}/actor#main-key'.format(request.host)) for inbox in inboxes]
asyncio.ensure_future(asyncio.gather(*futures))
CACHE[object_id] = activity_id
async def handle_follow(actor, data, request):
global DATABASE