This undoes part of b076bc27.

Add Application Service registration type requirement + py35, pg95 deprecation notices to v1.32.0 upgrade notes (#9849)

Fixes https://github.com/matrix-org/synapse/issues/9846.

Adds important removal information from the top of https://github.com/matrix-org/synapse/releases/tag/v1.32.0rc1 into UPGRADE.rst.

As far as I can tell our logging contexts are meant to log the request ID, or sometimes the request ID followed by a suffix (this is generally stored in the name field of LoggingContext). There's also code to log the name@memory location, but I'm not sure this is ever used.

This simplifies the code paths to require every logging context to have a name and use that in logging. For sub-contexts (created via nested_logging_contexts, defer_to_threadpool, Measure) we use the current context's str (which becomes their name or the string "sentinel") and then potentially modify that (e.g. add a suffix).

Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>

Signed-off-by: Dan Callahan <danc@element.io>

* Drop Python 3.5 from Trove classifier metadata.

Signed-off-by: Dan Callahan <danc@element.io>

Signed-off-by: Dan Callahan <danc@element.io>

This change ensures that the appservice registration behaviour follows the spec. We decided to do this for Dendrite, so it made sense to also make a PR for synapse to correct the behaviour.

There's no point logging this twice.

By providing the additional build tag for `msc2946`.

Signed-off-by: Dan Callahan <danc@element.io>

Related: #8334
Deprecated in: #9429 - Synapse 1.28.0 (2021-02-25)

`GET /_synapse/admin/v1/users/<user_id>` has no
- unit tests
- documentation

API in v2 is available (#5925 - 12/2019, v1.7.0).
API is misleading. It expects `user_id` and returns a list of all users.

Signed-off-by: Dirk Klimpel <dirk@klimpel.org>

Part of #9366

Adds in fixes for B006 and B008, both relating to mutable parameter lint errors.

Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>

Require py36, Postgres 9.6, and sqlite 3.22

Fix incompatibility with bionic

We pull all destinations requiring catchup from the DB in batches.
However, if all those destinations get filtered out (due to the
federation sender being sharded), then the `last_processed` destination
doesn't get updated, and we keep requesting the same set repeatedly.

Apparently on tox 2.5, `usedevelop` overrides `skip_install`, so we end up
trying to install the full dependencies even for the `-old` environment.

They don't make any sense on the intermediate builder image. The final
images needs them to be of use for anyone.

Signed-off-by: Johannes Wienke <languitar@semipol.de>

When joining a room with join rules set to 'restricted', check if the
user is a member of the spaces defined in the 'allow' key of the join rules.

This only applies to an experimental room version, as defined in MSC3083.

Records additional request information into the structured logs,
e.g. the requester, IP address, etc.