The code to deduplicate repeated fetches of the same set of events was
N^2 (over the number of events requested), which could lead to a process
being completely wedged.
The main fix is to deduplicate the returned deferreds so we only await
on a deferred once rather than many times. Seperately, when handling the
returned events from the defrered we only add the events we care about
to the event map to be returned (so that we don't pay the price of
inserting extraneous events into the dict).
Given that backfill and get_missing_events are basically the same thing, it's somewhat crazy that we have entirely separate code paths for them. This makes backfill use the existing get_missing_events code, and then clears up all the unused code.
When a user deletes an email from their account it will
now also remove all pushers for that email and that user
(even if these pushers were created by a different client)
* Validate device_keys for C-S /keys/query requests
Closes#10354
A small, not particularly critical fix. I'm interested in seeing if we
can find a more systematic approach though. #8445 is the place for any discussion.
Here we split on_receive_pdu into two functions (on_receive_pdu and process_pulled_event), rather than having both cases in the same method. There's a tiny bit of overlap, but not that much.
* drop room pdu linearizer sooner
No point holding onto it while we recheck the db
* move out `missing_prevs` calculation
we're going to need `missing_prevs` whatever we do, so we may as well calculate
it eagerly and just update it if it gets outdated.
* Add another `if missing_prevs` condition
this should be a no-op, since all the code inside the block already checks `if
missing_prevs`
* reorder if conditions
This shouldn't change the logic at all.
* Push down `min_depth` read
No point reading it from the database unless we're going to use it.
* Collect the sent_to_us_directly code together
Move the remaining `sent_to_us_directly` code inside the `if
sent_to_us_directly` block.
* Properly separate the `not sent_to_us_directly` branch
Since the only way this second block is now reachable is if we
*didn't* go into the `sent_to_us_directly` branch, we can replace it with a
simple `else`.
* changelog
Several configuration sections are using separate settings for custom template directories, which can be confusing. This PR adds a new top-level configuration for a custom template directory which is then used for every module. The only exception is the consent templates, since the consent template directory require a specific hierarchy, so it's probably better that it stays separate from everything else.
If the new /hierarchy API does not exist on all destinations,
fallback to querying the /spaces API and translating the results.
This is a backwards compatibility hack since not all of the
federated homeservers will update at the same time.
Marking things as outliers to inhibit pushes is a sledgehammer to crack a
nut. Move the test further down the stack so that we just inhibit the thing we
want.
