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Handle malformed values of notification.room in power level events #14942

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merged 7 commits into from
Jan 30, 2023
Merged

Handle malformed values of notification.room in power level events #14942

merged 7 commits into from
Jan 30, 2023

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DMRobertson
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@DMRobertson DMRobertson commented Jan 30, 2023 •
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Commitwise-reviewable.

Should fix #14933. The problem is that a pre-v10 room has {"notifications": {"room": null}} in its power levels event content. The null becomes a None inside the Python interpreter. Then the logic which tries to handle stringy power levels falls over when computing int(None).

I have implemented this assuming that the spec considers {"notifications": {"room": null}} to be acceptable and equivalent to {"notifications": {}}. I don't know if this is actually true; the OpenAPI definition is https://github.com/matrix-org/matrix-spec/blob/5f2fac89afdd02830099b5010e46724d905057d5/data/event-schemas/schema/m.room.power_levels.yaml#L88-L97. (room is not marked as required, but nor is it marked as nullable.)

But being pragmatic for a moment: we have this event in our DB for some reason, and we may as well try to unbreak the room for new joiners.

@DMRobertson DMRobertson force-pushed the dmr/room-v10-power-levels-again branch 3 times, most recently from cf27d7b to d6569dc Compare January 30, 2023 18:02
@DMRobertson DMRobertson marked this pull request as ready for review January 30, 2023 18:13
@DMRobertson DMRobertson requested a review from a team as a code owner January 30, 2023 18:13
David Robertson added 4 commits January 30, 2023 18:53
Better test for bad values in power levels events
2452122 
The previous test only checked that Synapse didn't raise an exception,
but didn't check that we had correctly interpreted the value of the
dodgy power level.

It also conflated two things: bad room notification levels, and bad user
levels. There _is_ logic for converting the latter to integers, but we
should test it separately.
Check we ignore types that don't convert to int
37971fa
Handle None values in notifications.room
e194241
Changelog
289983c
@DMRobertson DMRobertson force-pushed the dmr/room-v10-power-levels-again branch 2 times, most recently from f3cea29 to ca73e0c Compare January 30, 2023 19:34
@DMRobertson DMRobertson force-pushed the dmr/room-v10-power-levels-again branch from ca73e0c to 698c288 Compare January 30, 2023 19:45
clokep
clokep reviewed Jan 30, 2023
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changelog.d/14942.bugfix
@@ -0,0 +1 @@
Fix a bug introduced in Synapse 1.68.0 where we were unable to service remote joins in rooms with `@room` notification levels set to `null` in their (malformed) power levels.
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For cross-referencing it seems #14073 fixes something similar. It seems the root-cause is the change to Rust for push rule processing in #13838?

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That was my thinking when I came to write the changelog.

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👍 Makes sense, just making sure I didn't miss something!

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I'm purposefully leaving this unresolved so that we can find it in the future if we need to. 😄

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(last commit is me running black 🤦 )

@DMRobertson DMRobertson enabled auto-merge (squash) January 30, 2023 20:55
@DMRobertson DMRobertson mentioned this pull request Jan 30, 2023
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@DMRobertson DMRobertson merged commit 510d4b0 into develop Jan 30, 2023
@DMRobertson DMRobertson deleted the dmr/room-v10-power-levels-again branch January 30, 2023 21:29
Fizzadar added a commit to beeper/synapse-legacy-fork that referenced this pull request Feb 20, 2023
@Fizzadar
Merge tag 'v1.77.0' into beeper
120c50b 
Synapse 1.77.0 (2023-02-14)
===========================

No significant changes since 1.77.0rc2.

Synapse 1.77.0rc2 (2023-02-10)
==============================

Bugfixes
--------

- Fix bug where retried replication requests would return a failure. Introduced in v1.76.0. ([\matrix-org#15024](matrix-org#15024))

Internal Changes
----------------

- Prepare for future database schema changes. ([\matrix-org#15036](matrix-org#15036))

Synapse 1.77.0rc1 (2023-02-07)
==============================

Features
--------

- Experimental support for [MSC3952](matrix-org/matrix-spec-proposals#3952): intentional mentions. ([\matrix-org#14823](matrix-org#14823), [\matrix-org#14943](matrix-org#14943), [\matrix-org#14957](matrix-org#14957), [\matrix-org#14958](matrix-org#14958))
- Experimental support to suppress notifications from message edits ([MSC3958](matrix-org/matrix-spec-proposals#3958)). ([\matrix-org#14960](matrix-org#14960), [\matrix-org#15016](matrix-org#15016))
- Add profile information, devices and connections to the command line [user data export tool](https://matrix-org.github.io/synapse/v1.77/usage/administration/admin_faq.html#how-can-i-export-user-data). ([\matrix-org#14894](matrix-org#14894))
- Improve performance when joining or sending an event in large rooms. ([\matrix-org#14962](matrix-org#14962))
- Improve performance of joining and leaving large rooms with many local users. ([\matrix-org#14971](matrix-org#14971))

Bugfixes
--------

- Fix a bug introduced in Synapse 1.53.0 where `next_batch` tokens from `/sync` could not be used with the `/relations` endpoint. ([\matrix-org#14866](matrix-org#14866))
- Fix a bug introduced in Synapse 1.35.0 where the module API's `send_local_online_presence_to` would fail to send presence updates over federation. ([\matrix-org#14880](matrix-org#14880))
- Fix a bug introduced in Synapse 1.70.0 where the background updates to add non-thread unique indexes on receipts could fail when upgrading from 1.67.0 or earlier. ([\matrix-org#14915](matrix-org#14915))
- Fix a regression introduced in Synapse 1.69.0 which can result in database corruption when database migrations are interrupted on sqlite. ([\matrix-org#14926](matrix-org#14926))
- Fix a bug introduced in Synapse 1.68.0 where we were unable to service remote joins in rooms with `@room` notification levels set to `null` in their (malformed) power levels. ([\matrix-org#14942](matrix-org#14942))
- Fix a bug introduced in Synapse 1.64.0 where boolean power levels were erroneously permitted in [v10 rooms](https://spec.matrix.org/v1.5/rooms/v10/). ([\matrix-org#14944](matrix-org#14944))
- Fix a long-standing bug where sending messages on servers with presence enabled would spam "Re-starting finished log context" log lines. ([\matrix-org#14947](matrix-org#14947))
- Fix a bug introduced in Synapse 1.68.0 where logging from the Rust module was not properly logged. ([\matrix-org#14976](matrix-org#14976))
- Fix various long-standing bugs in Synapse's config, event and request handling where booleans were unintentionally accepted where an integer was expected. ([\matrix-org#14945](matrix-org#14945))

Internal Changes
----------------

- Add missing type hints. ([\matrix-org#14879](matrix-org#14879), [\matrix-org#14886](matrix-org#14886), [\matrix-org#14887](matrix-org#14887), [\matrix-org#14904](matrix-org#14904), [\matrix-org#14927](matrix-org#14927), [\matrix-org#14956](matrix-org#14956), [\matrix-org#14983](matrix-org#14983), [\matrix-org#14984](matrix-org#14984), [\matrix-org#14985](matrix-org#14985), [\matrix-org#14987](matrix-org#14987), [\matrix-org#14988](matrix-org#14988), [\matrix-org#14990](matrix-org#14990), [\matrix-org#14991](matrix-org#14991), [\matrix-org#14992](matrix-org#14992), [\matrix-org#15007](matrix-org#15007))
- Use `StrCollection` to avoid potential bugs with `Collection[str]`. ([\matrix-org#14922](matrix-org#14922))
- Allow running the complement tests suites with the asyncio reactor enabled. ([\matrix-org#14858](matrix-org#14858))
- Improve performance of `/sync` in a few situations. ([\matrix-org#14908](matrix-org#14908), [\matrix-org#14970](matrix-org#14970))
- Document how to handle Dependabot pull requests. ([\matrix-org#14916](matrix-org#14916))
- Fix typo in release script. ([\matrix-org#14920](matrix-org#14920))
- Update build system requirements to allow building with poetry-core 1.5.0. ([\matrix-org#14949](matrix-org#14949), [\matrix-org#15019](matrix-org#15019))
- Add an [lnav](https://lnav.org) config file for Synapse logs to `/contrib/lnav`. ([\matrix-org#14953](matrix-org#14953))
- Faster joins: Refactor internal handling of servers in room to never store an empty list. ([\matrix-org#14954](matrix-org#14954))
- Faster joins: tag `v2/send_join/` requests to indicate if they served a partial join response. ([\matrix-org#14950](matrix-org#14950))
- Allow running `cargo` without the `extension-module` option. ([\matrix-org#14965](matrix-org#14965))
- Preparatory work for adding a denormalised event stream ordering column in the future. Contributed by Nick @ Beeper (@Fizzadar). ([\matrix-org#14979](matrix-org#14979), [9cd7610](matrix-org@9cd7610), [f10caa7](matrix-org@f10caa7); see [\matrix-org#15014](matrix-org#15014))
- Add tests for `_flatten_dict`. ([\matrix-org#14981](matrix-org#14981), [\matrix-org#15002](matrix-org#15002))

<details><summary>Dependabot updates</summary>

- Bump dtolnay/rust-toolchain from e645b0cf01249a964ec099494d38d2da0f0b349f to 9cd00a88a73addc8617065438eff914dd08d0955. ([\matrix-org#14968](matrix-org#14968))
- Bump docker/build-push-action from 3 to 4. ([\matrix-org#14952](matrix-org#14952))
- Bump ijson from 3.1.4 to 3.2.0.post0. ([\matrix-org#14935](matrix-org#14935))
- Bump types-pyyaml from 6.0.12.2 to 6.0.12.3. ([\matrix-org#14936](matrix-org#14936))
- Bump types-jsonschema from 4.17.0.2 to 4.17.0.3. ([\matrix-org#14937](matrix-org#14937))
- Bump types-pillow from 9.4.0.3 to 9.4.0.5. ([\matrix-org#14938](matrix-org#14938))
- Bump hiredis from 2.0.0 to 2.1.1. ([\matrix-org#14939](matrix-org#14939))
- Bump hiredis from 2.1.1 to 2.2.1. ([\matrix-org#14993](matrix-org#14993))
- Bump types-setuptools from 65.6.0.3 to 67.1.0.0. ([\matrix-org#14994](matrix-org#14994))
- Bump prometheus-client from 0.15.0 to 0.16.0. ([\matrix-org#14995](matrix-org#14995))
- Bump anyhow from 1.0.68 to 1.0.69. ([\matrix-org#14996](matrix-org#14996))
- Bump serde_json from 1.0.91 to 1.0.92. ([\matrix-org#14997](matrix-org#14997))
- Bump isort from 5.11.4 to 5.11.5. ([\matrix-org#14998](matrix-org#14998))
- Bump phonenumbers from 8.13.4 to 8.13.5. ([\matrix-org#14999](matrix-org#14999))
</details>

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# Conflicts:
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#	poetry.lock
#	rust/src/push/base_rules.rs
#	rust/src/push/evaluator.rs
#	rust/src/push/mod.rs
#	synapse/config/experimental.py
#	synapse/event_auth.py
#	synapse/handlers/message.py
#	synapse/handlers/pagination.py
#	synapse/push/bulk_push_rule_evaluator.py
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#	synapse/storage/databases/main/roommember.py
#	tests/push/test_push_rule_evaluator.py
netbsd-srcmastr pushed a commit to NetBSD/pkgsrc that referenced this pull request Mar 1, 2023
@Midar
Update chat/matrix-synapse to 1.77.0
1cf80f5 
Synapse 1.77.0 (2023-02-14)
===========================

No significant changes since 1.77.0rc2.


Synapse 1.77.0rc2 (2023-02-10)
==============================

Bugfixes
--------

- Fix bug where retried replication requests would return a failure. Introduced in v1.76.0. ([\#15024](matrix-org/synapse#15024))


Internal Changes
----------------

- Prepare for future database schema changes. ([\#15036](matrix-org/synapse#15036))


Synapse 1.77.0rc1 (2023-02-07)
==============================

Features
--------

- Experimental support for [MSC3952](matrix-org/matrix-spec-proposals#3952): intentional mentions. ([\#14823](matrix-org/synapse#14823), [\#14943](matrix-org/synapse#14943), [\#14957](matrix-org/synapse#14957), [\#14958](matrix-org/synapse#14958))
- Experimental support to suppress notifications from message edits ([MSC3958](matrix-org/matrix-spec-proposals#3958)). ([\#14960](matrix-org/synapse#14960), [\#15016](matrix-org/synapse#15016))
- Add profile information, devices and connections to the command line [user data export tool](https://matrix-org.github.io/synapse/v1.77/usage/administration/admin_faq.html#how-can-i-export-user-data). ([\#14894](matrix-org/synapse#14894))
- Improve performance when joining or sending an event in large rooms. ([\#14962](matrix-org/synapse#14962))
- Improve performance of joining and leaving large rooms with many local users. ([\#14971](matrix-org/synapse#14971))


Bugfixes
--------

- Fix a bug introduced in Synapse 1.53.0 where `next_batch` tokens from `/sync` could not be used with the `/relations` endpoint. ([\#14866](matrix-org/synapse#14866))
- Fix a bug introduced in Synapse 1.35.0 where the module API's `send_local_online_presence_to` would fail to send presence updates over federation. ([\#14880](matrix-org/synapse#14880))
- Fix a bug introduced in Synapse 1.70.0 where the background updates to add non-thread unique indexes on receipts could fail when upgrading from 1.67.0 or earlier. ([\#14915](matrix-org/synapse#14915))
- Fix a regression introduced in Synapse 1.69.0 which can result in database corruption when database migrations are interrupted on sqlite. ([\#14926](matrix-org/synapse#14926))
- Fix a bug introduced in Synapse 1.68.0 where we were unable to service remote joins in rooms with `@room` notification levels set to `null` in their (malformed) power levels. ([\#14942](matrix-org/synapse#14942))
- Fix a bug introduced in Synapse 1.64.0 where boolean power levels were erroneously permitted in [v10 rooms](https://spec.matrix.org/v1.5/rooms/v10/). ([\#14944](matrix-org/synapse#14944))
- Fix a long-standing bug where sending messages on servers with presence enabled would spam "Re-starting finished log context" log lines. ([\#14947](matrix-org/synapse#14947))
- Fix a bug introduced in Synapse 1.68.0 where logging from the Rust module was not properly logged. ([\#14976](matrix-org/synapse#14976))
- Fix various long-standing bugs in Synapse's config, event and request handling where booleans were unintentionally accepted where an integer was expected. ([\#14945](matrix-org/synapse#14945))


Internal Changes
----------------

- Add missing type hints. ([\#14879](matrix-org/synapse#14879), [\#14886](matrix-org/synapse#14886), [\#14887](matrix-org/synapse#14887), [\#14904](matrix-org/synapse#14904), [\#14927](matrix-org/synapse#14927), [\#14956](matrix-org/synapse#14956), [\#14983](matrix-org/synapse#14983), [\#14984](matrix-org/synapse#14984), [\#14985](matrix-org/synapse#14985), [\#14987](matrix-org/synapse#14987), [\#14988](matrix-org/synapse#14988), [\#14990](matrix-org/synapse#14990), [\#14991](matrix-org/synapse#14991), [\#14992](matrix-org/synapse#14992), [\#15007](matrix-org/synapse#15007))
- Use `StrCollection` to avoid potential bugs with `Collection[str]`. ([\#14922](matrix-org/synapse#14922))
- Allow running the complement tests suites with the asyncio reactor enabled. ([\#14858](matrix-org/synapse#14858))
- Improve performance of `/sync` in a few situations. ([\#14908](matrix-org/synapse#14908), [\#14970](matrix-org/synapse#14970))
- Document how to handle Dependabot pull requests. ([\#14916](matrix-org/synapse#14916))
- Fix typo in release script. ([\#14920](matrix-org/synapse#14920))
- Update build system requirements to allow building with poetry-core 1.5.0. ([\#14949](matrix-org/synapse#14949), [\#15019](matrix-org/synapse#15019))
- Add an [lnav](https://lnav.org) config file for Synapse logs to `/contrib/lnav`. ([\#14953](matrix-org/synapse#14953))
- Faster joins: Refactor internal handling of servers in room to never store an empty list. ([\#14954](matrix-org/synapse#14954))
- Faster joins: tag `v2/send_join/` requests to indicate if they served a partial join response. ([\#14950](matrix-org/synapse#14950))
- Allow running `cargo` without the `extension-module` option. ([\#14965](matrix-org/synapse#14965))
- Preparatory work for adding a denormalised event stream ordering column in the future. Contributed by Nick @ Beeper (@Fizzadar). ([\#14979](matrix-org/synapse#14979), [9cd7610](matrix-org/synapse@9cd7610), [f10caa7](matrix-org/synapse@f10caa7); see [\#15014](matrix-org/synapse#15014))
- Add tests for `_flatten_dict`. ([\#14981](matrix-org/synapse#14981), [\#15002](matrix-org/synapse#15002))

<details><summary>Locked dependency updates</summary>

- Bump dtolnay/rust-toolchain from e645b0cf01249a964ec099494d38d2da0f0b349f to 9cd00a88a73addc8617065438eff914dd08d0955. ([\#14968](matrix-org/synapse#14968))
- Bump docker/build-push-action from 3 to 4. ([\#14952](matrix-org/synapse#14952))
- Bump ijson from 3.1.4 to 3.2.0.post0. ([\#14935](matrix-org/synapse#14935))
- Bump types-pyyaml from 6.0.12.2 to 6.0.12.3. ([\#14936](matrix-org/synapse#14936))
- Bump types-jsonschema from 4.17.0.2 to 4.17.0.3. ([\#14937](matrix-org/synapse#14937))
- Bump types-pillow from 9.4.0.3 to 9.4.0.5. ([\#14938](matrix-org/synapse#14938))
- Bump hiredis from 2.0.0 to 2.1.1. ([\#14939](matrix-org/synapse#14939))
- Bump hiredis from 2.1.1 to 2.2.1. ([\#14993](matrix-org/synapse#14993))
- Bump types-setuptools from 65.6.0.3 to 67.1.0.0. ([\#14994](matrix-org/synapse#14994))
- Bump prometheus-client from 0.15.0 to 0.16.0. ([\#14995](matrix-org/synapse#14995))
- Bump anyhow from 1.0.68 to 1.0.69. ([\#14996](matrix-org/synapse#14996))
- Bump serde_json from 1.0.91 to 1.0.92. ([\#14997](matrix-org/synapse#14997))
- Bump isort from 5.11.4 to 5.11.5. ([\#14998](matrix-org/synapse#14998))
- Bump phonenumbers from 8.13.4 to 8.13.5. ([\#14999](matrix-org/synapse#14999))
</details>
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