This reverts commit 2bf31f78.

Signed-off-by: Pascal Bach <pascal.bach@nextrem.ch>

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

To allow for easier backwards/forwards compatibility by making
it easier to add/remove callbacks.

* Require latest matrix-common
* Use the common function

Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>

* Make `get_auth_chain_ids` return a Set

It has a set internally, and a set is often useful where it gets used, so let's
avoid converting to an intermediate list.

* Minor refactors in `on_send_join_request`

A little bit of non-functional groundwork

* Implement MSC3706: partial state in /send_join response

This adds an unstable org.matrix.msc3715.dir parameter
which acts like dir on /mesages.

This should reduce database usage when fetching bundled aggregations
as the number of individual queries (and round trips to the database) are
reduced.

use `HEAD` rather than hardcoding `master`

Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>

\#11966 fixes a bug introduced by #11215, which isn't in a released
version.

\#11966 fixes a bug introduced by #11215, which isn't in a released
version.

If ther are more than 100 to-device messages pending for a device
`/sync` will only return the first 100, however the next batch token was
incorrectly calculated and so all other pending messages would be
dropped.

This is due to `txn.rowcount` only returning the number of rows that
*changed*, rather than the number *selected* in SQLite.

If we prepopulate the test homeserver with a key for a remote homeserver, we
can make federation requests to it without having to stub out the
authenticator. This has two advantages:

 * means that what we are testing is closer to reality (ie, we now have
   complete tests for the incoming-request-authorisation flow)

 * some tests require that other objects be signed by the remote server (eg,
   the event in `/send_join`), and doing that would require a whole separate
   set of mocking out. It's much simpler just to use real keys.

This implements an allow list for content types for which Synapse will attempt URL preview. If a URL resolves to a resource with a content type which isn't in the list, the download will terminate immediately.

This makes sense given that Synapse would never successfully generate a URL preview for such files in the first place, and helps prevent issues with streaming media servers, such as #8302.

Signed-off-by: Denis Kasak <dkasak@termina.org.uk>

From when the documentation was converted from rst -> md.

The StreamHandler takes a stream parameter, not location.

Twisted 22.1.0 fixed some internal type hints, allowing Synapse
to remove ignore calls for parameters to connectTCP. 

This should reduce database usage when fetching bundled aggregations
as the number of individual queries (and round trips to the database) are
reduced.

Re-applies the changes from 3e0cfd44 (#11602),
reverting d93ec0a0 (#11764) now that the conflict
with the webclient listener was fixed in 119edf51 (#11895).