Merge branch 'develop' into comp-worker-shorthand

.ci/scripts/test_export_data_command.sh

@@ -23,8 +23,9 @@ poetry run python -m synapse.app.admin_cmd -c .ci/sqlite-config.yaml  export-dat
 --output-directory /tmp/export_data
 
 # Test that the output directory exists and contains the rooms directory
-dir="/tmp/export_data/rooms"
-if [ -d "$dir" ]; then
+dir_r="/tmp/export_data/rooms"
+dir_u="/tmp/export_data/user_data"
+if [ -d "$dir_r" ] && [ -d "$dir_u" ]; then
   echo "Command successful, this test passes"
 else
   echo "No output directories found, the command fails against a sqlite database."
@@ -43,8 +44,9 @@ poetry run python -m synapse.app.admin_cmd -c .ci/postgres-config.yaml  export-d
 --output-directory /tmp/export_data2
 
 # Test that the output directory exists and contains the rooms directory
-dir2="/tmp/export_data2/rooms"
-if [ -d "$dir2" ]; then
+dir_r2="/tmp/export_data2/rooms"
+dir_u2="/tmp/export_data2/user_data"
+if [ -d "$dir_r2" ] && [ -d "$dir_u2" ]; then
   echo "Command successful, this test passes"
 else
   echo "No output directories found, the command fails against a postgres database."

.github/workflows/docker.yml

@@ -48,7 +48,7 @@ jobs:
             type=pep440,pattern={{raw}}
 
       - name: Build and push all platforms
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           push: true
           labels: "gitsha1=${{ github.sha }}"

.github/workflows/latest_deps.yml

@@ -27,7 +27,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -61,7 +61,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -134,7 +134,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2

.github/workflows/tests.yml

@@ -112,7 +112,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
             toolchain: 1.58.1
             components: clippy
@@ -134,7 +134,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
             toolchain: nightly-2022-12-01
             components: clippy
@@ -154,7 +154,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
           toolchain: 1.58.1
           components: rustfmt
@@ -221,7 +221,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -266,7 +266,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -386,7 +386,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -531,7 +531,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -541,8 +541,11 @@ jobs:
 
       - run: |
           set -o pipefail
-          POSTGRES=${{ (matrix.database == 'Postgres') && 1 || '' }} WORKERS=${{ (matrix.arrangement == 'workers') && 1 || '' }} COMPLEMENT_DIR=`pwd`/complement synapse/scripts-dev/complement.sh -json 2>&1 | synapse/.ci/scripts/gotestfmt
+          COMPLEMENT_DIR=`pwd`/complement synapse/scripts-dev/complement.sh -json 2>&1 | synapse/.ci/scripts/gotestfmt
         shell: bash
+        env:
+          POSTGRES: ${{ (matrix.database == 'Postgres') && 1 || '' }}
+          WORKERS: ${{ (matrix.arrangement == 'workers') && 1 || '' }}
         name: Run Complement Tests
 
   cargo-test:
@@ -559,13 +562,36 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
 
       - run: cargo test
 
+  # We want to ensure that the cargo benchmarks still compile, which requires a
+  # nightly compiler.
+  cargo-bench:
+    if: ${{ needs.changes.outputs.rust == 'true' }}
+    runs-on: ubuntu-latest
+    needs:
+      - linting-done
+      - changes
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Rust
+        # There don't seem to be versioned releases of this action per se: for each rust
+        # version there is a branch which gets constantly rebased on top of master.
+        # We pin to a specific commit for paranoia's sake.
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
+        with:
+            toolchain: nightly-2022-12-01
+      - uses: Swatinem/rust-cache@v2
+
+      - run: cargo bench --no-run
+
   # a job which marks all the other jobs as complete, thus allowing PRs to be merged.
   tests-done:
     if: ${{ always() }}
@@ -577,6 +603,7 @@ jobs:
       - portdb
       - complement
       - cargo-test
+      - cargo-bench
     runs-on: ubuntu-latest
     steps:
       - uses: matrix-org/done-action@v2
@@ -588,3 +615,4 @@ jobs:
           skippable: |
             lint-newsfile
             cargo-test
+            cargo-bench

.github/workflows/twisted_trunk.yml

@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -43,7 +43,7 @@ jobs:
       - run: sudo apt-get -qq install xmlsec1
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -82,7 +82,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
+        uses: dtolnay/rust-toolchain@9cd00a88a73addc8617065438eff914dd08d0955
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2

CHANGES.md

@@ -1,3 +1,52 @@
+Synapse 1.76.0 (2023-01-31)
+===========================
+
+The 1.76 release is the first to enable faster joins ([MSC3706](https://github.com/matrix-org/matrix-spec-proposals/pull/3706) and [MSC3902](https://github.com/matrix-org/matrix-spec-proposals/pull/3902)) by default. Admins can opt-out: see [the upgrade notes](https://github.com/matrix-org/synapse/blob/release-v1.76/docs/upgrade.md#faster-joins-are-enabled-by-default) for more details.
+
+The upgrade from 1.75 to 1.76 changes the account data replication streams in a backwards-incompatible manner. Server operators running a multi-worker deployment should consult [the upgrade notes](https://github.com/matrix-org/synapse/blob/release-v1.76/docs/upgrade.md#changes-to-the-account-data-replication-streams).
+
+Those who are `poetry install`ing from source using our lockfile should ensure their poetry version is 1.3.2 or higher; [see upgrade notes](https://github.com/matrix-org/synapse/blob/release-v1.76/docs/upgrade.md#minimum-version-of-poetry-is-now-132).
+
+
+Notes on faster joins
+---------------------
+
+The faster joins project sees the most benefit when joining a room with a large number of members (joined or historical). We expect it to be particularly useful for joining large public rooms like the [Matrix HQ](https://matrix.to/#/#matrix:matrix.org) or [Synapse Admins](https://matrix.to/#/#synapse:matrix.org) rooms. 
+
+After a faster join, Synapse considers that room "partially joined". In this state, you should be able to
+
+- read incoming messages;
+- see incoming state changes, e.g. room topic changes; and
+- send messages, if the room is unencrypted.
+
+Synapse has to spend more effort to complete the join in the background. Once this finishes, you will be able to
+
+- send messages, if the room is in encrypted;
+- retrieve room history from before your join, if permitted by the room settings; and
+- access the full list of room members.
+
+
+Improved Documentation
+----------------------
+
+- Describe the ideas and the internal machinery behind faster joins. ([\#14677](https://github.com/matrix-org/synapse/issues/14677))
+
+
+Synapse 1.76.0rc2 (2023-01-27)
+==============================
+
+Bugfixes
+--------
+
+- Faster joins: Fix a bug introduced in Synapse 1.69 where device list EDUs could fail to be handled after a restart when a faster join sync is in progress. ([\#14914](https://github.com/matrix-org/synapse/issues/14914))
+
+
+Internal Changes
+----------------
+
+- Faster joins: Improve performance of looking up partial-state status of rooms. ([\#14917](https://github.com/matrix-org/synapse/issues/14917))
+
+
 Synapse 1.76.0rc1 (2023-01-25)
 ==============================
 
@@ -5,10 +54,10 @@ Features
 --------
 
 - Update the default room version to [v10](https://spec.matrix.org/v1.5/rooms/v10/) ([MSC 3904](https://github.com/matrix-org/matrix-spec-proposals/pull/3904)). Contributed by @FSG-Cat. ([\#14111](https://github.com/matrix-org/synapse/issues/14111))
-- Adds a `set_displayname()` method to the module API for setting a user's display name. ([\#14629](https://github.com/matrix-org/synapse/issues/14629))
+- Add a `set_displayname()` method to the module API for setting a user's display name. ([\#14629](https://github.com/matrix-org/synapse/issues/14629))
 - Add a dedicated listener configuration for `health` endpoint. ([\#14747](https://github.com/matrix-org/synapse/issues/14747))
-- Implement support for MSC3890: Remotely silence local notifications. ([\#14775](https://github.com/matrix-org/synapse/issues/14775))
-- Implement experimental support for MSC3930: Push rules for (MSC3381) Polls. ([\#14787](https://github.com/matrix-org/synapse/issues/14787))
+- Implement support for [MSC3890](https://github.com/matrix-org/matrix-spec-proposals/pull/3890): Remotely silence local notifications. ([\#14775](https://github.com/matrix-org/synapse/issues/14775))
+- Implement experimental support for [MSC3930](https://github.com/matrix-org/matrix-spec-proposals/pull/3930): Push rules for ([MSC3381](https://github.com/matrix-org/matrix-spec-proposals/pull/3381)) Polls. ([\#14787](https://github.com/matrix-org/synapse/issues/14787))
 - Per [MSC3925](https://github.com/matrix-org/matrix-spec-proposals/pull/3925), bundle the whole of the replacement with any edited events, and optionally inhibit server-side replacement. ([\#14811](https://github.com/matrix-org/synapse/issues/14811))
 - Faster joins: always serve a partial join response to servers that request it with the stable query param. ([\#14839](https://github.com/matrix-org/synapse/issues/14839))
 - Faster joins: allow non-lazy-loading ("eager") syncs to complete after a partial join by omitting partial state rooms until they become fully stated. ([\#14870](https://github.com/matrix-org/synapse/issues/14870))
@@ -69,20 +118,20 @@ Internal Changes
 - Faster joins: use stable identifiers from [MSC3706](https://github.com/matrix-org/matrix-spec-proposals/pull/3706). ([\#14832](https://github.com/matrix-org/synapse/issues/14832), [\#14841](https://github.com/matrix-org/synapse/issues/14841))
 - Add a parameter to control whether the federation client performs a partial state join. ([\#14843](https://github.com/matrix-org/synapse/issues/14843))
 - Add check to avoid starting duplicate partial state syncs. ([\#14844](https://github.com/matrix-org/synapse/issues/14844))
-- Bump regex from 1.7.0 to 1.7.1. ([\#14848](https://github.com/matrix-org/synapse/issues/14848))
 - Add an early return when handling no-op presence updates. ([\#14855](https://github.com/matrix-org/synapse/issues/14855))
 - Fix `wait_for_stream_position` to correctly wait for the right instance to advance its token. ([\#14856](https://github.com/matrix-org/synapse/issues/14856), [\#14872](https://github.com/matrix-org/synapse/issues/14872))
+- Always notify replication when a stream advances automatically. ([\#14877](https://github.com/matrix-org/synapse/issues/14877))
+- Reduce max time we wait for stream positions. ([\#14881](https://github.com/matrix-org/synapse/issues/14881))
+- Faster joins: allow the resync process more time to fetch `/state` ids. ([\#14912](https://github.com/matrix-org/synapse/issues/14912))
+- Bump regex from 1.7.0 to 1.7.1. ([\#14848](https://github.com/matrix-org/synapse/issues/14848))
 - Bump peaceiris/actions-gh-pages from 3.9.1 to 3.9.2. ([\#14861](https://github.com/matrix-org/synapse/issues/14861))
 - Bump ruff from 0.0.215 to 0.0.224. ([\#14862](https://github.com/matrix-org/synapse/issues/14862))
 - Bump types-pillow from 9.4.0.0 to 9.4.0.3. ([\#14863](https://github.com/matrix-org/synapse/issues/14863))
-- Always notify replication when a stream advances automatically. ([\#14877](https://github.com/matrix-org/synapse/issues/14877))
-- Reduce max time we wait for stream positions. ([\#14881](https://github.com/matrix-org/synapse/issues/14881))
 - Bump types-opentracing from 2.4.10 to 2.4.10.1. ([\#14896](https://github.com/matrix-org/synapse/issues/14896))
 - Bump ruff from 0.0.224 to 0.0.230. ([\#14897](https://github.com/matrix-org/synapse/issues/14897))
 - Bump types-requests from 2.28.11.7 to 2.28.11.8. ([\#14899](https://github.com/matrix-org/synapse/issues/14899))
 - Bump types-psycopg2 from 2.9.21.2 to 2.9.21.4. ([\#14900](https://github.com/matrix-org/synapse/issues/14900))
 - Bump types-commonmark from 0.9.2 to 0.9.2.1. ([\#14901](https://github.com/matrix-org/synapse/issues/14901))
-- Faster joins: allow the resync process more time to fetch `/state` ids. ([\#14912](https://github.com/matrix-org/synapse/issues/14912))
 
 
 Synapse 1.75.0 (2023-01-17)

changelog.d/14823.feature

@@ -0,0 +1 @@
+Experimental support for [MSC3952](https://github.com/matrix-org/matrix-spec-proposals/pull/3952): intentional mentions.

changelog.d/14858.misc

@@ -0,0 +1 @@
+Run the integration test suites with the asyncio reactor enabled in CI.

changelog.d/14866.bugfix

@@ -0,0 +1 @@
+Fix a bug introduced in Synapse 1.53.0 where `next_batch` tokens from `/sync` could not be used with the `/relations` endpoint.

changelog.d/14879.misc

@@ -0,0 +1 @@
+Add missing type hints.

changelog.d/14894.feature

@@ -0,0 +1 @@
+Adds profile information, devices and connections to the user data export via command line.

changelog.d/14908.misc

@@ -0,0 +1 @@
+Improve performance of `/sync` in a few situations.

changelog.d/14915.bugfix

@@ -0,0 +1 @@
+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.

changelog.d/14920.misc

@@ -0,0 +1 @@
+Fix typo in release script.

changelog.d/14922.misc

@@ -0,0 +1 @@
+Use `StrCollection` to avoid potential bugs with `Collection[str]`.

changelog.d/14926.bugfix

@@ -0,0 +1 @@
+Fix a regression introduced in Synapse 1.69.0 which can result in database corruption when database migrations are interrupted on sqlite.

changelog.d/14927.misc

@@ -0,0 +1 @@
+Add missing type hints.

changelog.d/14935.misc

@@ -0,0 +1 @@
+Bump ijson from 3.1.4 to 3.2.0.post0.

changelog.d/14936.misc

@@ -0,0 +1 @@
+Bump types-pyyaml from 6.0.12.2 to 6.0.12.3.

changelog.d/14937.misc

@@ -0,0 +1 @@
+Bump types-jsonschema from 4.17.0.2 to 4.17.0.3.

changelog.d/14938.misc

@@ -0,0 +1 @@
+Bump types-pillow from 9.4.0.3 to 9.4.0.5.

changelog.d/14939.misc

@@ -0,0 +1 @@
+Bump hiredis from 2.0.0 to 2.1.1.

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.

changelog.d/14943.feature

@@ -0,0 +1 @@
+Experimental support for [MSC3952](https://github.com/matrix-org/matrix-spec-proposals/pull/3952): intentional mentions.

changelog.d/14944.bugfix

@@ -0,0 +1 @@
+Fix a bug introduced in Synapse v1.64 where boolean power levels were erroneously permitted in [v10 rooms](https://spec.matrix.org/v1.5/rooms/v10/).

changelog.d/14945.misc

@@ -0,0 +1 @@
+Fix various long-standing bugs in Synapse's config, event and request handling where booleans were unintentionally accepted where an integer was expected.

changelog.d/14947.bugfix

@@ -0,0 +1 @@
+Fix a long-standing bug where sending messages on servers with presence enabled would spam "Re-starting finished log context" log lines.

changelog.d/14950.misc

@@ -0,0 +1 @@
+Faster joins: tag `v2/send_join/` requests to indicate if they served a partial join response.

changelog.d/14952.misc

@@ -0,0 +1 @@
+Bump docker/build-push-action from 3 to 4.

changelog.d/14953.misc

@@ -0,0 +1 @@
+Add an [lnav](https://lnav.org) config file for Synapse logs to `/contrib/lnav`.

changelog.d/14954.misc

@@ -0,0 +1 @@
+Faster room joins: Refactor internal handling of servers in room to never store an empty list.

changelog.d/14956.misc

@@ -0,0 +1 @@
+Add missing type hints.

changelog.d/14957.feature

@@ -0,0 +1 @@
+Experimental support for [MSC3952](https://github.com/matrix-org/matrix-spec-proposals/pull/3952): intentional mentions.

changelog.d/14958.feature

@@ -0,0 +1 @@
+Experimental support for [MSC3952](https://github.com/matrix-org/matrix-spec-proposals/pull/3952): intentional mentions.

changelog.d/14960.feature

@@ -0,0 +1 @@
+Experimental support to suppress notifications from message edits ([MSC3958](https://github.com/matrix-org/matrix-spec-proposals/pull/3958)).

changelog.d/14962.feature

@@ -0,0 +1 @@
+Improve performance when joining or sending an event large rooms.

changelog.d/14965.misc

@@ -0,0 +1 @@
+Allow running `cargo` without the `extension-module` option.

changelog.d/14968.misc

@@ -0,0 +1 @@
+Bump dtolnay/rust-toolchain from e645b0cf01249a964ec099494d38d2da0f0b349f to 9cd00a88a73addc8617065438eff914dd08d0955.

changelog.d/14970.misc

@@ -0,0 +1 @@
+Improve performance of `/sync` in a few situations.

changelog.d/14976.bugfix

@@ -0,0 +1 @@
+Fix a bug introduced in Synapse 1.68.0 where logging from the Rust module was not properly logged.

changelog.d/14981.misc

@@ -0,0 +1 @@
+Add tests for `_flatten_dict`.

changelog.d/14983.misc

@@ -0,0 +1 @@
+Improve type hints.

changelog.d/14984.misc

@@ -0,0 +1 @@
+Improve type hints.

contrib/lnav/README.md

@@ -0,0 +1,47 @@
+# `lnav` config for Synapse logs
+
+[lnav](https://lnav.org/) is a log-viewing tool. It is particularly useful when 
+you need to interleave multiple log files, or for exploring a large log file
+with regex filters. The downside is that it is not as ubiquitous as tools like
+`less`, `grep`, etc.
+
+This directory contains an `lnav` [log format definition](
+    https://docs.lnav.org/en/v0.10.1/formats.html#defining-a-new-format
+) for Synapse logs as
+emitted by Synapse with the default [logging configuration](
+    https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#log_config
+). It supports lnav 0.10.1 because that's what's packaged by my distribution.
+
+This should allow lnav:
+
+- to interpret timestamps, allowing log interleaving;
+- to interpret log severity levels, allowing colouring by log level(!!!);
+- to interpret request IDs, allowing you to skip through a specific request; and
+- to highlight room, event and user IDs in logs.
+
+See also https://gist.github.com/benje/e2ab750b0a81d11920d83af637d289f7 for a
+ similar example.
+
+## Example
+
+[![asciicast](https://asciinema.org/a/556133.svg)](https://asciinema.org/a/556133)
+
+## Tips
+
+- `lnav -i /path/to/synapse/checkout/contrib/lnav/synapse-log-format.json`
+- `lnav my_synapse_log_file` or `lnav synapse_log_files.*`, etc.
+- `lnav --help` for CLI help.
+
+Within lnav itself:
+
+- `?` for help within lnav itself.
+- `q` to quit.
+- `/` to search a-la `less` and `vim`, then `n` and `N` to continue searching 
+  down and up.
+- Use `o` and `O` to skip through logs based on the request ID (`POST-1234`, or
+  else the value of the [`request_id_header`](
+    https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html?highlight=request_id_header#listeners
+  ) header). This may get confused if the same request ID is repeated among 
+  multiple files or process restarts.
+- ???
+- Profit

contrib/lnav/synapse-log-format.json

@@ -0,0 +1,67 @@
+{
+  "$schema": "https://lnav.org/schemas/format-v1.schema.json",
+  "synapse": {
+    "title": "Synapse logs",
+    "description": "Logs output by Synapse, a Matrix homesever, under its default logging config.",
+    "regex": {
+      "log": {
+        "pattern": ".*(?<timestamp>\\d{4}-\\d{2}-\\d{2} \\d{2}:\\d{2}:\\d{2},\\d{3}) - (?<logger>.+) - (?<lineno>\\d+) - (?<level>\\w+) - (?<context>.+) - (?<body>.*)"
+      }
+    },
+    "json": false,
+    "timestamp-field": "timestamp",
+    "timestamp-format": [
+      "%Y-%m-%d %H:%M:%S,%L"
+    ],
+    "level-field": "level",
+    "body-field": "body",
+    "opid-field": "context",
+    "level": {
+      "critical": "CRITICAL",
+      "error": "ERROR",
+      "warning": "WARNING",
+      "info": "INFO",
+      "debug": "DEBUG"
+    },
+    "sample": [
+      {
+        "line": "my-matrix-server-generic-worker-4 | 2023-01-27 09:47:09,818 - synapse.replication.tcp.client - 381 - ERROR - PUT-32992 - Timed out waiting for stream receipts",
+        "level": "error"
+      },
+      {
+        "line": "my-matrix-server-federation-sender-1 | 2023-01-25 20:56:20,995 - synapse.http.matrixfederationclient - 709 - WARNING - federation_transaction_transmission_loop-3 - {PUT-O-3} [example.com] Request failed: PUT matrix://example.com/_matrix/federation/v1/send/1674680155797: HttpResponseException('403: Forbidden')",
+        "level": "warning"
+      },
+      {
+        "line": "my-matrix-server  | 2023-01-25 20:55:54,433 - synapse.storage.databases - 66 - INFO - main - [database config 'master']: Checking database server",
+        "level": "info"
+      },
+      {
+        "line": "my-matrix-server  | 2023-01-26 15:08:40,447 - synapse.access.http.8008 - 460 - INFO - PUT-74929 - 0.0.0.0 - 8008 - {@alice:example.com} Processed request: 0.011sec/0.000sec (0.000sec, 0.000sec) (0.001sec/0.008sec/3) 2B 200 \"PUT /_matrix/client/r0/user/%40alice%3Atexample.com/account_data/im.vector.setting.breadcrumbs HTTP/1.0\" \"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Element/1.11.20 Chrome/108.0.5359.179 Electron/22.0.3 Safari/537.36\" [0 dbevts]",
+        "level": "info"
+      }
+    ],
+    "highlights": {
+      "user_id": {
+        "pattern": "(@|%40)[^:% ]+(:|%3A)[\\[\\]0-9a-zA-Z.\\-:]+(:\\d{1,5})?(?<!:)",
+        "underline": true
+      },
+      "room_id": {
+        "pattern": "(!|%21)[^:% ]+(:|%3A)[\\[\\]0-9a-zA-Z.\\-:]+(:\\d{1,5})?(?<!:)",
+        "underline": true
+      },
+      "room_alias": {
+        "pattern": "(#|%23)[^:% ]+(:|%3A)[\\[\\]0-9a-zA-Z.\\-:]+(:\\d{1,5})?(?<!:)",
+        "underline": true
+      },
+      "event_id_v1_v2": {
+        "pattern": "(\\$|%25)[^:% ]+(:|%3A)[\\[\\]0-9a-zA-Z.\\-:]+(:\\d{1,5})?(?<!:)",
+        "underline": true
+      },
+      "event_id_v3_plus": {
+        "pattern": "(\\$|%25)([A-Za-z0-9+/_]|-){43}",
+        "underline": true
+      }
+    }
+  }
+}

debian/changelog

@@ -1,3 +1,15 @@
+matrix-synapse-py3 (1.76.0) stable; urgency=medium
+
+  * New Synapse release 1.76.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 31 Jan 2023 08:21:47 -0800
+
+matrix-synapse-py3 (1.76.0~rc2) stable; urgency=medium
+
+  * New Synapse release 1.76.0rc2.
+
+ -- Synapse Packaging team <packages@matrix.org>  Fri, 27 Jan 2023 11:17:57 +0000
+
 matrix-synapse-py3 (1.76.0~rc1) stable; urgency=medium
 
   * Use Poetry 1.3.2 to manage the bundled virtualenv included with this package.

docker/complement/conf/start_for_complement.sh

@@ -6,7 +6,7 @@ set -e
 
 echo "Complement Synapse launcher"
 echo "  Args: $@"
-echo "  Env: SYNAPSE_COMPLEMENT_DATABASE=$SYNAPSE_COMPLEMENT_DATABASE SYNAPSE_COMPLEMENT_USE_WORKERS=$SYNAPSE_COMPLEMENT_USE_WORKERS"
+echo "  Env: SYNAPSE_COMPLEMENT_DATABASE=$SYNAPSE_COMPLEMENT_DATABASE SYNAPSE_COMPLEMENT_USE_WORKERS=$SYNAPSE_COMPLEMENT_USE_WORKERS SYNAPSE_COMPLEMENT_USE_ASYNCIO_REACTOR=$SYNAPSE_COMPLEMENT_USE_ASYNCIO_REACTOR"
 
 function log {
     d=$(date +"%Y-%m-%d %H:%M:%S,%3N")
@@ -76,6 +76,17 @@ else
 fi
 
 
+if [[ -n "$SYNAPSE_COMPLEMENT_USE_ASYNCIO_REACTOR" ]]; then
+  if [[ -n "$SYNAPSE_USE_EXPERIMENTAL_FORKING_LAUNCHER" ]]; then
+    export SYNAPSE_COMPLEMENT_FORKING_LAUNCHER_ASYNC_IO_REACTOR="1"
+  else
+    export SYNAPSE_ASYNC_IO_REACTOR="1"
+  fi
+else
+  export SYNAPSE_ASYNC_IO_REACTOR="0"
+fi
+
+
 # Add Complement's appservice registration directory, if there is one
 # (It can be absent when there are no application services in this test!)
 if [ -d /complement/appservice ]; then

docs/SUMMARY.md

@@ -97,6 +97,7 @@
     - [Log Contexts](log_contexts.md)
     - [Replication](replication.md)
     - [TCP Replication](tcp_replication.md)
+    - [Faster remote joins](development/synapse_architecture/faster_joins.md)
   - [Internal Documentation](development/internal_documentation/README.md)
     - [Single Sign-On]()
       - [SAML](development/saml.md)

docs/development/contributing_guide.md

@@ -332,6 +332,7 @@ The above will run a monolithic (single-process) Synapse with SQLite as the data
     [here](https://github.com/matrix-org/synapse/blob/develop/docker/configure_workers_and_start.py#L54).
     A safe example would be `WORKER_TYPES="federation_inbound, federation_sender, synchrotron"`.
     See the [worker documentation](../workers.md) for additional information on workers.
+- Passing `ASYNCIO_REACTOR=1` as an environment variable to use the Twisted asyncio reactor instead of the default one.
 
 To increase the log level for the tests, set `SYNAPSE_TEST_LOG_LEVEL`, e.g:
 ```sh

docs/development/synapse_architecture/faster_joins.md

@@ -0,0 +1,375 @@
+# How do faster joins work?
+
+This is a work-in-progress set of notes with two goals:
+- act as a reference, explaining how Synapse implements faster joins; and
+- record the rationale behind our choices.
+
+See also [MSC3902](https://github.com/matrix-org/matrix-spec-proposals/pull/3902).
+
+The key idea is described by [MSC706](https://github.com/matrix-org/matrix-spec-proposals/pull/3902). This allows servers to
+request a lightweight response to the federation `/send_join` endpoint.
+This is called a **faster join**, also known as a **partial join**. In these
+notes we'll usually use the word "partial" as it matches the database schema.
+
+## Overview: processing events in a partially-joined room
+
+The response to a partial join consists of
+- the requested join event `J`,
+- a list of the servers in the room (according to the state before `J`),
+- a subset of the state of the room before `J`,
+- the full auth chain of that state subset.
+
+Synapse marks the room as partially joined by adding a row to the database table
+`partial_state_rooms`. It also marks the join event `J` as "partially stated",
+meaning that we have neither received nor computed the full state before/after
+`J`. This is done by adding a row to `partial_state_events`.
+
+<details><summary>DB schema</summary>
+
+```
+matrix=> \d partial_state_events
+Table "matrix.partial_state_events"
+  Column  │ Type │ Collation │ Nullable │ Default
+══════════╪══════╪═══════════╪══════════╪═════════
+ room_id  │ text │           │ not null │
+ event_id │ text │           │ not null │
+ 
+matrix=> \d partial_state_rooms
+                Table "matrix.partial_state_rooms"
+         Column         │  Type  │ Collation │ Nullable │ Default 
+════════════════════════╪════════╪═══════════╪══════════╪═════════
+ room_id                │ text   │           │ not null │ 
+ device_lists_stream_id │ bigint │           │ not null │ 0
+ join_event_id          │ text   │           │          │ 
+ joined_via             │ text   │           │          │ 
+
+matrix=> \d partial_state_rooms_servers
+     Table "matrix.partial_state_rooms_servers"
+   Column    │ Type │ Collation │ Nullable │ Default 
+═════════════╪══════╪═══════════╪══════════╪═════════
+ room_id     │ text │           │ not null │ 
+ server_name │ text │           │ not null │ 
+```
+
+Indices, foreign-keys and check constraints are omitted for brevity.
+</details>
+
+While partially joined to a room, Synapse receives events `E` from remote
+homeservers as normal, and can create events at the request of its local users.
+However, we run into trouble when we enforce the [checks on an event].
+
+> 1. Is a valid event, otherwise it is dropped. For an event to be valid, it
+     must contain a room_id, and it must comply with the event format of that
+>    room version.
+> 2. Passes signature checks, otherwise it is dropped.
+> 3. Passes hash checks, otherwise it is redacted before being processed further.
+> 4. Passes authorization rules based on the event’s auth events, otherwise it
+>    is rejected.
+> 5. **Passes authorization rules based on the state before the event, otherwise
+>    it is rejected.**
+> 6. **Passes authorization rules based on the current state of the room,
+>    otherwise it is “soft failed”.**
+
+[checks on an event]: https://spec.matrix.org/v1.5/server-server-api/#checks-performed-on-receipt-of-a-pdu
+
+We can enforce checks 1--4 without any problems.
+But we cannot enforce checks 5 or 6 with complete certainty, since Synapse does
+not know the full state before `E`, nor that of the room.
+
+### Partial state
+
+Instead, we make a best-effort approximation.
+While the room is considered partially joined, Synapse tracks the "partial
+state" before events.
+This works in a similar way as regular state:
+
+- The partial state before `J` is that given to us by the partial join response.
+- The partial state before an event `E` is the resolution of the partial states
+  after each of `E`'s `prev_event`s.
+- If `E` is rejected or a message event, the partial state after `E` is the
+  partial state before `E`.
+- Otherwise, the partial state after `E` is the partial state before `E`, plus
+  `E` itself.
+
+More concisely, partial state propagates just like full state; the only
+difference is that we "seed" it with an incomplete initial state.
+Synapse records that we have only calculated partial state for this event with
+a row in `partial_state_events`.
+
+While the room remains partially stated, check 5 on incoming events to that
+room becomes:
+
+> 5. Passes authorization rules based on **the resolution between the partial
+>    state before `E` and `E`'s auth events.** If the event fails to pass
+>    authorization rules, it is rejected.
+
+Additionally, check 6 is deleted: no soft-failures are enforced.
+
+While partially joined, the current partial state of the room is defined as the
+resolution across the partial states after all forward extremities in the room.
+
+_Remark._ Events with partial state are _not_ considered
+[outliers](../room-dag-concepts.md#outliers).
+
+### Approximation error
+
+Using partial state means the auth checks can fail in a few different ways[^2].
+
+[^2]: Is this exhaustive?
+
+- We may erroneously accept an incoming event in check 5 based on partial state
+  when it would have been rejected based on full state, or vice versa.
+- This means that an event could erroneously be added to the current partial
+  state of the room when it would not be present in the full state of the room,
+  or vice versa.
+- Additionally, we may have skipped soft-failing an event that would have been
+  soft-failed based on full state.
+
+(Note that the discrepancies described in the last two bullets are user-visible.)
+
+This means that we have to be very careful when we want to lookup pieces of room
+state in a partially-joined room. Our approximation of the state may be
+incorrect or missing. But we can make some educated guesses. If
+
+- our partial state is likely to be correct, or
+- the consequences of our partial state being incorrect are minor,
+
+then we proceed as normal, and let the resync process fix up any mistakes (see
+below).
+
+When is our partial state likely to be correct?
+
+- It's more accurate the closer we are to the partial join event. (So we should
+  ideally complete the resync as soon as possible.)
+- Non-member events: we will have received them as part of the partial join
+  response, if they were part of the room state at that point. We may
+  incorrectly accept or reject updates to that state (at first because we lack
+  remote membership information; later because of compounding errors), so these
+  can become incorrect over time.
+- Local members' memberships: we are the only ones who can create join and
+  knock events for our users. We can't be completely confident in the
+  correctness of bans, invites and kicks from other homeservers, but the resync
+  process should correct any mistakes.
+- Remote members' memberships: we did not receive these in the /send_join
+  response, so we have essentially no idea if these are correct or not.
+
+In short, we deem it acceptable to trust the partial state for non-membership
+and local membership events. For remote membership events, we wait for the
+resync to complete, at which point we have the full state of the room and can
+proceed as normal.
+
+### Fixing the approximation with a resync
+
+The partial-state approximation is only a temporary affair. In the background,
+synapse beings a "resync" process. This is a continuous loop, starting at the
+partial join event and proceeding downwards through the event graph. For each 
+`E` seen in the room since partial join, Synapse will fetch 
+
+- the event ids in the state of the room before `E`, via 
+  [`/state_ids`](https://spec.matrix.org/v1.5/server-server-api/#get_matrixfederationv1state_idsroomid);
+- the event ids in the full auth chain of `E`, included in the `/state_ids` 
+  response; and
+- any events from the previous two bullets that Synapse hasn't persisted, via
+  [`/state](https://spec.matrix.org/v1.5/server-server-api/#get_matrixfederationv1stateroomid).
+
+This means Synapse has (or can compute) the full state before `E`, which allows
+Synapse to properly authorise or reject `E`. At this point ,the event
+is considered to have "full state" rather than "partial state". We record this
+by removing `E` from the `partial_state_events` table.
+
+\[**TODO:** Does Synapse persist a new state group for the full state
+before `E`, or do we alter the (partial-)state group in-place? Are state groups
+ever marked as partially-stated? \]
+
+This scheme means it is possible for us to have accepted and sent an event to 
+clients, only to reject it during the resync. From a client's perspective, the 
+effect is similar to a retroactive 
+state change due to state resolution---i.e. a "state reset".[^3]
+
+[^3]: Clients should refresh caches to detect such a change. Rumour has it that 
+sliding sync will fix this.
+
+When all events since the join `J` have been fully-stated, the room resync
+process is complete. We record this by removing the room from
+`partial_state_rooms`.
+
+## Faster joins on workers
+
+For the time being, the resync process happens on the master worker.
+A new replication stream `un_partial_stated_room` is added. Whenever a resync
+completes and a partial-state room becomes fully stated, a new message is sent
+into that stream containing the room ID.
+
+## Notes on specific cases
+
+> **NB.** The notes below are rough. Some of them are hidden under `<details>`
+disclosures because they have yet to be implemented in mainline Synapse.
+
+### Creating events during a partial join
+
+When sending out messages during a partial join, we assume our partial state is 
+accurate and proceed as normal. For this to have any hope of succeeding at all,
+our partial state must contain an entry for each of the (type, state key) pairs
+[specified by the auth rules](https://spec.matrix.org/v1.3/rooms/v10/#authorization-rules):
+
+- `m.room.create`
+- `m.room.join_rules`
+- `m.room.power_levels`
+- `m.room.third_party_invite`
+- `m.room.member`
+
+The first four of these should be present in the state before `J` that is given
+to us in the partial join response; only membership events are omitted. In order
+for us to consider the user joined, we must have their membership event. That
+means the only possible omission is the target's membership in an invite, kick
+or ban.
+
+The worst possibility is that we locally invite someone who is banned according to
+the full state, because we lack their ban in our current partial state. The rest 
+of the federation---at least, those who are fully joined---should correctly 
+enforce the [membership transition constraints](
+    https://spec.matrix.org/v1.3/client-server-api/#room-membership
+). So any the erroneous invite should be ignored by fully-joined
+homeservers and resolved by the resync for partially-joined homeservers.
+
+
+
+In more generality, there are two problems we're worrying about here:
+
+- We might create an event that is valid under our partial state, only to later
+  find out that is actually invalid according to the full state.
+- Or: we might refuse to create an event that is invalid under our partial
+  state, even though it would be perfectly valid under the full state.
+
+However we expect such problems to be unlikely in practise, because
+
+- We trust that the room has sensible power levels, e.g. that bad actors with
+  high power levels are demoted before their ban.
+- We trust that the resident server provides us up-to-date power levels, join
+  rules, etc.
+- State changes in rooms are relatively infrequent, and the resync period is
+  relatively quick.
+
+#### Sending out the event over federation
+
+**TODO:** needs prose fleshing out.
+
+Normally: send out in a fed txn to all HSes in the room.
+We only know that some HSes were in the room at some point. Wat do.
+Send it out to the list of servers from the first join.
+**TODO** what do we do here if we have full state?
+If the prev event was created by us, we can risk sending it to the wrong HS. (Motivation: privacy concern of the content. Not such a big deal for a public room or an encrypted room. But non-encrypted invite-only...)
+But don't want to send out sensitive data in other HS's events in this way.
+
+Suppose we discover after resync that we shouldn't have sent out one our events (not a prev_event) to a target HS. Not much we can do.
+What about if we didn't send them an event but shouldn't've?
+E.g. what if someone joined from a new HS shortly after you did? We wouldn't talk to them.
+Could imagine sending out the "Missed" events after the resync but... painful to work out what they shuld have seen if they joined/left.
+Instead, just send them the latest event (if they're still in the room after resync) and let them backfill.(?)
+- Don't do this currently.
+- If anyone who has received our messages sends a message to a HS we missed, they can backfill our messages
+- Gap: rooms which are infrequently used and take a long time to resync.
+
+### Joining after a partial join
+
+**NB.** Not yet implemented.
+
+<details>
+
+**TODO:** needs prose fleshing out. Liase with Matthieu. Explain why /send_join
+(Rich was surprised we didn't just create it locally. Answer: to try and avoid
+a join which then gets rejected after resync.)
+
+We don't know for sure that any join we create would be accepted.
+E.g. the joined user might have been banned; the join rules might have changed in a way that we didn't realise... some way in which the partial state was mistaken.
+Instead, do another partial make-join/send-join handshake to confirm that the join works.
+- Probably going to get a bunch of duplicate state events and auth events.... but the point of partial joins is that these should be small. Many are already persisted = good.
+- What if the second send_join response includes a different list of reisdent HSes? Could ignore it.
+  - Could even have a special flag that says "just make me a join", i.e. don't bother giving me state or servers in room. Deffo want the auth chain tho.
+- SQ: wrt device lists it's a lot safer to ignore it!!!!!
+- What if the state at the second join is inconsistent with what we have? Ignore it?
+
+</details>
+
+### Leaving (and kicks and bans) after a partial join
+
+**NB.** Not yet implemented.
+
+<details>
+
+When you're fully joined to a room, to have `U` leave a room their homeserver
+needs to
+
+- create a new leave event for `U` which will be accepted by other homeservers,
+  and
+- send that event `U` out to the homeservers in the federation.
+
+When is a leave event accepted? See
+[v10 auth rules](https://spec.matrix.org/v1.5/rooms/v10/#authorization-rules):
+
+> 4. If type is m.room.member: [...]
+     >
+     >    5. If membership is leave:
+             >
+             >       1. If the sender matches state_key, allow if and only if that user’s current membership state is invite, join, or knock.
+>       2. [...]
+
+I think this means that (well-formed!) self-leaves are governed entirely by
+4.5.1. This means that if we correctly calculate state which says that `U` is
+invited, joined or knocked and include it in the leave's auth events, our event
+is accepted by checks 4 and 5 on incoming events.
+
+> 4. Passes authorization rules based on the event’s auth events, otherwise
+     >    it is rejected.
+> 5. Passes authorization rules based on the state before the event, otherwise
+     >    it is rejected.
+
+The only way to fail check 6 is if the receiving server's current state of the
+room says that `U` is banned, has left, or has no membership event. But this is
+fine: the receiving server already thinks that `U` isn't in the room.
+
+> 6. Passes authorization rules based on the current state of the room,
+     >    otherwise it is “soft failed”.
+
+For the second point (publishing the leave event), the best thing we can do is
+to is publish to all HSes we know to be currently in the room. If they miss that
+event, they might send us traffic in the room that we don't care about. This is
+a problem with leaving after a "full" join; we don't seek to fix this with
+partial joins.
+
+(With that said: there's nothing machine-readable in the /send response. I don't
+think we can deduce "destination has left the room" from a failure to /send an
+event into that room?)
+
+#### Can we still do this during a partial join?
+
+We can create leave events and can choose what gets included in our auth events,
+so we can be sure that we pass check 4 on incoming events. For check 5, we might
+have an incorrect view of the state before an event.
+The only way we might erroneously think a leave is valid is if
+
+- the partial state before the leave has `U` joined, invited or knocked, but
+- the full state before the leave has `U` banned, left or not present,
+
+in which case the leave doesn't make anything worse: other HSes already consider
+us as not in the room, and will continue to do so after seeing the leave.
+
+The remaining obstacle is then: can we safely broadcast the leave event? We may
+miss servers or incorrectly think that a server is in the room. Or the
+destination server may be offline and miss the transaction containing our leave
+event.This should self-heal when they see an event whose `prev_events` descends
+from our leave.
+
+Another option we considered was to use federation `/send_leave` to ask a
+fully-joined server to send out the event on our behalf. But that introduces
+complexity without much benefit. Besides, as Rich put it,
+
+> sending out leaves is pretty best-effort currently
+
+so this is probably good enough as-is.
+
+#### Cleanup after the last leave
+
+**TODO**: what cleanup is necessary? Is it all just nice-to-have to save unused
+work?
+</details>

docs/upgrade.md

@@ -92,7 +92,7 @@ process, for example:
 
 ## Faster joins are enabled by default
 
-When joining a room for the first time, Synapse 1.76.0rc1 will request a partial join from the other server by default. Previously, server admins had to opt-in to this using an experimental config flag.
+When joining a room for the first time, Synapse 1.76.0 will request a partial join from the other server by default. Previously, server admins had to opt-in to this using an experimental config flag.
 
 Server admins can opt out of this feature for the time being by setting
 

docs/usage/administration/admin_faq.md

@@ -2,13 +2,19 @@
 
 How do I become a server admin?
 ---
-If your server already has an admin account you should use the [User Admin API](../../admin_api/user_admin_api.md#change-whether-a-user-is-a-server-administrator-or-not) to promote other accounts to become admins.
+If your server already has an admin account you should use the
+[User Admin API](../../admin_api/user_admin_api.md#change-whether-a-user-is-a-server-administrator-or-not)
+to promote other accounts to become admins.
 
-If you don't have any admin accounts yet you won't be able to use the admin API, so you'll have to edit the database manually. Manually editing the database is generally not recommended so once you have an admin account: use the admin APIs to make further changes.
+If you don't have any admin accounts yet you won't be able to use the admin API,
+so you'll have to edit the database manually. Manually editing the database is
+generally not recommended so once you have an admin account: use the admin APIs
+to make further changes.
 
 ```sql
 UPDATE users SET admin = 1 WHERE name = '@foo:bar.com';
 ```
+
 What servers are my server talking to?
 ---
 Run this sql query on your db:
@@ -36,8 +42,38 @@ How can I export user data?
 ---
 Synapse includes a Python command to export data for a specific user. It takes the homeserver
 configuration file and the full Matrix ID of the user to export:
+
 ```console
-python -m synapse.app.admin_cmd -c <config_file> export-data <user_id>
+python -m synapse.app.admin_cmd -c <config_file> export-data <user_id> --output-directory <directory_path>
+```
+
+If you uses [Poetry](../../development/dependencies.md#managing-dependencies-with-poetry)
+to run Synapse:
+
+```console
+poetry run python -m synapse.app.admin_cmd -c <config_file> export-data <user_id> --output-directory <directory_path>
+```
+
+The directory to store the export data in can be customised with the
+`--output-directory` parameter; ensure that the provided directory is
+empty. If this parameter is not provided, Synapse defaults to creating
+a temporary directory (which starts with "synapse-exfiltrate") in `/tmp`,
+`/var/tmp`, or `/usr/tmp`, in that order.
+
+The exported data has the following layout:
+
+```
+output-directory
+├───rooms
+│   └───<room_id>
+│       ├───events
+│       ├───state
+│       ├───invite_state
+│       └───knock_state
+└───user_data
+    ├───connections
+    ├───devices
+    └───profile
 ```
 
 Manually resetting passwords
@@ -50,21 +86,29 @@ I have a problem with my server. Can I just delete my database and start again?
 ---
 Deleting your database is unlikely to make anything better. 
 
-It's easy to make the mistake of thinking that you can start again from a clean slate by dropping your database, but things don't work like that in a federated network: lots of other servers have information about your server.
+It's easy to make the mistake of thinking that you can start again from a clean
+slate by dropping your database, but things don't work like that in a federated
+network: lots of other servers have information about your server.
 
-For example: other servers might think that you are in a room, your server will think that you are not, and you'll probably be unable to interact with that room in a sensible way ever again.
+For example: other servers might think that you are in a room, your server will
+think that you are not, and you'll probably be unable to interact with that room
+in a sensible way ever again.
 
-In general, there are better solutions to any problem than dropping the database. Come and seek help in https://matrix.to/#/#synapse:matrix.org.
+In general, there are better solutions to any problem than dropping the database.
+Come and seek help in https://matrix.to/#/#synapse:matrix.org.
 
 There are two exceptions when it might be sensible to delete your database and start again:
-* You have *never* joined any rooms which are federated with other servers. For instance, a local deployment which the outside world can't talk to. 
-* You are changing the `server_name` in the homeserver configuration. In effect this makes your server a completely new one from the point of view of the network, so in this case it makes sense to start with a clean database.
+* You have *never* joined any rooms which are federated with other servers. For
+instance, a local deployment which the outside world can't talk to. 
+* You are changing the `server_name` in the homeserver configuration. In effect
+this makes your server a completely new one from the point of view of the network,
+so in this case it makes sense to start with a clean database.
 (In both cases you probably also want to clear out the media_store.)
 
 I've stuffed up access to my room, how can I delete it to free up the alias?
 ---
 Using the following curl command:
-```
+```console
 curl -H 'Authorization: Bearer <access-token>' -X DELETE https://matrix.org/_matrix/client/r0/directory/room/<room-alias>
 ```
 `<access-token>` - can be obtained in riot by looking in the riot settings, down the bottom is:
@@ -75,19 +119,25 @@ Access Token:\<click to reveal\>
 How can I find the lines corresponding to a given HTTP request in my homeserver log?
 ---
 
-Synapse tags each log line according to the HTTP request it is processing. When it finishes processing each request, it logs a line containing the words `Processed request: `. For example:
+Synapse tags each log line according to the HTTP request it is processing. When
+it finishes processing each request, it logs a line containing the words
+`Processed request: `. For example:
 
 ```
 2019-02-14 22:35:08,196 - synapse.access.http.8008 - 302 - INFO - GET-37 - ::1 - 8008 - {@richvdh:localhost} Processed request: 0.173sec/0.001sec (0.002sec, 0.000sec) (0.027sec/0.026sec/2) 687B 200 "GET /_matrix/client/r0/sync HTTP/1.1" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36" [0 dbevts]"
 ```
 
-Here we can see that the request has been tagged with `GET-37`. (The tag depends on the method of the HTTP request, so might start with `GET-`, `PUT-`, `POST-`, `OPTIONS-` or `DELETE-`.) So to find all lines corresponding to this request, we can do:
+Here we can see that the request has been tagged with `GET-37`. (The tag depends
+on the method of the HTTP request, so might start with `GET-`, `PUT-`, `POST-`,
+`OPTIONS-` or `DELETE-`.) So to find all lines corresponding to this request, we can do:
 
-```
+```console
 grep 'GET-37' homeserver.log
 ```
 
-If you want to paste that output into a github issue or matrix room, please remember to surround it with triple-backticks (```) to make it legible (see [quoting code](https://help.github.com/en/articles/basic-writing-and-formatting-syntax#quoting-code)).
+If you want to paste that output into a github issue or matrix room, please
+remember to surround it with triple-backticks (```) to make it legible
+(see [quoting code](https://help.github.com/en/articles/basic-writing-and-formatting-syntax#quoting-code)).
 
 
 What do all those fields in the 'Processed' line mean?
@@ -127,7 +177,7 @@ This is normally caused by a misconfiguration in your reverse-proxy. See [the re
 
 
 Help!! Synapse is slow and eats all my RAM/CPU!
------------------------------------------------
+---
 
 First, ensure you are running the latest version of Synapse, using Python 3
 with a [PostgreSQL database](../../postgres.md).
@@ -169,7 +219,7 @@ in the Synapse config file: [see here](../configuration/config_documentation.md#
 
 
 Running out of File Handles
----------------------------
+---
 
 If Synapse runs out of file handles, it typically fails badly - live-locking
 at 100% CPU, and/or failing to accept new TCP connections (blocking the

mypy.ini

@@ -32,18 +32,13 @@ exclude = (?x)
    |synapse/storage/databases/main/cache.py
    |synapse/storage/schema/
 
-   |tests/api/test_auth.py
-   |tests/app/test_openid_listener.py
    |tests/appservice/test_scheduler.py
    |tests/federation/test_federation_catch_up.py
    |tests/federation/test_federation_sender.py
    |tests/http/federation/test_matrix_federation_agent.py
    |tests/http/federation/test_srv_resolver.py
    |tests/http/test_proxyagent.py
-   |tests/logging/__init__.py
-   |tests/logging/test_terse_json.py
    |tests/module_api/test_api.py
-   |tests/rest/client/test_transactions.py
    |tests/rest/media/v1/test_media_storage.py
    |tests/server.py
    |tests/test_state.py
@@ -77,6 +72,12 @@ disallow_untyped_defs = False
 [mypy-tests.*]
 disallow_untyped_defs = False
 
+[mypy-tests.api.*]
+disallow_untyped_defs = True
+
+[mypy-tests.app.*]
+disallow_untyped_defs = True
+
 [mypy-tests.config.*]
 disallow_untyped_defs = True
 
@@ -92,6 +93,9 @@ disallow_untyped_defs = True
 [mypy-tests.handlers.*]
 disallow_untyped_defs = True
 
+[mypy-tests.logging.*]
+disallow_untyped_defs = True
+
 [mypy-tests.metrics.*]
 disallow_untyped_defs = True
 

poetry.lock

@@ -501,53 +501,101 @@ typing-extensions = {version = ">=3.7.4.3", markers = "python_version < \"3.8\""
 
 [[package]]
 name = "hiredis"
-version = "2.0.0"
+version = "2.1.1"
 description = "Python wrapper for hiredis"
 category = "main"
 optional = true
-python-versions = ">=3.6"
+python-versions = ">=3.7"
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+    {file = "ijson-3.2.0.post0-pp37-pypy37_pp73-win_amd64.whl", hash = "sha256:03dfd4c8ed19e704d04b0ad4f34f598dc569fd3f73089f80eed698e7f6069233"},
+    {file = "ijson-3.2.0.post0-pp38-pypy38_pp73-macosx_10_9_x86_64.whl", hash = "sha256:2d50b2ad9c6c51ca160aa60de7f4dacd1357c38d0e503f51aed95c1c1945ff53"},
+    {file = "ijson-3.2.0.post0-pp38-pypy38_pp73-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:51c1db80d7791fb761ad9a6c70f521acd2c4b0e5afa2fe0d813beb2140d16c37"},
+    {file = "ijson-3.2.0.post0-pp38-pypy38_pp73-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:13f2939db983327dd0492f6c1c0e77be3f2cbf9b620c92c7547d1d2cd6ef0486"},
+    {file = "ijson-3.2.0.post0-pp38-pypy38_pp73-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:2f9d449f86f8971c24609e319811f7f3b6b734f0218c4a0e799debe19300d15b"},
+    {file = "ijson-3.2.0.post0-pp38-pypy38_pp73-win_amd64.whl", hash = "sha256:7e0d1713a9074a7677eb8e43f424b731589d1c689d4676e2f57a5ce59d089e89"},
+    {file = "ijson-3.2.0.post0-pp39-pypy39_pp73-macosx_10_9_x86_64.whl", hash = "sha256:c8646eb81eec559d7d8b1e51a5087299d06ecab3bc7da54c01f7df94350df135"},
+    {file = "ijson-3.2.0.post0-pp39-pypy39_pp73-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:09fe3a53e00c59de33b825ba8d6d39f544a7d7180983cd3d6bd2c3794ae35442"},
+    {file = "ijson-3.2.0.post0-pp39-pypy39_pp73-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:93aaec00cbde65c192f15c21f3ee44d2ab0c11eb1a35020b5c4c2676f7fe01d0"},
+    {file = "ijson-3.2.0.post0-pp39-pypy39_pp73-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:00594ed3ef2218fee8c652d9e7f862fb39f8251b67c6379ef12f7e044bf6bbf3"},
+    {file = "ijson-3.2.0.post0-pp39-pypy39_pp73-win_amd64.whl", hash = "sha256:1a75cfb34217b41136b714985be645f12269e4345da35d7b48aabd317c82fd10"},
+    {file = "ijson-3.2.0.post0.tar.gz", hash = "sha256:80a5bd7e9923cab200701f67ad2372104328b99ddf249dbbe8834102c852d316"},
 ]
 
 [[package]]
@@ -2558,14 +2622,14 @@ files = [
 
 [[package]]
 name = "types-jsonschema"
-version = "4.17.0.2"
+version = "4.17.0.3"
 description = "Typing stubs for jsonschema"
 category = "dev"
 optional = false
 python-versions = "*"
 files = [
-    {file = "types-jsonschema-4.17.0.2.tar.gz", hash = "sha256:8b9e1140d4d780f0f19b5cab1b8a3732e8dd5e49dbc1f174cc0b499125ca6f6c"},
-    {file = "types_jsonschema-4.17.0.2-py3-none-any.whl", hash = "sha256:8fd2f9aea4da54f9a811baa6963aac10fd680c18baa6237392c079b97d152738"},
+    {file = "types-jsonschema-4.17.0.3.tar.gz", hash = "sha256:746aa466ffed9a1acc7bdbd0ac0b5e068f00be2ee008c1d1e14b0944a8c8b24b"},
+    {file = "types_jsonschema-4.17.0.3-py3-none-any.whl", hash = "sha256:c8d5b26b7c8da6a48d7fb1ce029b97e0ff6e74db3727efb968c69f39ad013685"},
 ]
 
 [[package]]
@@ -2582,14 +2646,14 @@ files = [
 
 [[package]]
 name = "types-pillow"
-version = "9.4.0.3"
+version = "9.4.0.5"
 description = "Typing stubs for Pillow"
 category = "dev"
 optional = false
 python-versions = "*"
 files = [
-    {file = "types-Pillow-9.4.0.3.tar.gz", hash = "sha256:eba8ff24457a1b8669b6099793f3d313d034d407ee9f6e5fdf12c86cf54914cd"},
-    {file = "types_Pillow-9.4.0.3-py3-none-any.whl", hash = "sha256:f8f16a54ed315144296864df11f14beca82ec0990ea83710b7eac7eb1bb38971"},
+    {file = "types-Pillow-9.4.0.5.tar.gz", hash = "sha256:941cefaac2f5297d7d2a9989633c95b4063112690dc21c965d46bd5a7fff3c76"},
+    {file = "types_Pillow-9.4.0.5-py3-none-any.whl", hash = "sha256:a1d2b3e070b4d852af04f76f018d12bd51abb4abca3b725d91b35e01cda7a2de"},
 ]
 
 [[package]]
@@ -2621,14 +2685,14 @@ types-cryptography = "*"
 
 [[package]]
 name = "types-pyyaml"
-version = "6.0.12.2"
+version = "6.0.12.3"
 description = "Typing stubs for PyYAML"
 category = "dev"
 optional = false
 python-versions = "*"
 files = [
-    {file = "types-PyYAML-6.0.12.2.tar.gz", hash = "sha256:6840819871c92deebe6a2067fb800c11b8a063632eb4e3e755914e7ab3604e83"},
-    {file = "types_PyYAML-6.0.12.2-py3-none-any.whl", hash = "sha256:1e94e80aafee07a7e798addb2a320e32956a373f376655128ae20637adb2655b"},
+    {file = "types-PyYAML-6.0.12.3.tar.gz", hash = "sha256:17ce17b3ead8f06e416a3b1d5b8ddc6cb82a422bb200254dd8b469434b045ffc"},
+    {file = "types_PyYAML-6.0.12.3-py3-none-any.whl", hash = "sha256:879700e9f215afb20ab5f849590418ab500989f83a57e635689e1d50ccc63f0c"},
 ]
 
 [[package]]

pyproject.toml

@@ -89,7 +89,7 @@ manifest-path = "rust/Cargo.toml"
 
 [tool.poetry]
 name = "matrix-synapse"
-version = "1.76.0rc1"
+version = "1.76.0"
 description = "Homeserver for the Matrix decentralised comms protocol"
 authors = ["Matrix.org Team and Contributors <packages@matrix.org>"]
 license = "Apache-2.0"

rust/Cargo.toml

@@ -23,13 +23,17 @@ name = "synapse.synapse_rust"
 anyhow = "1.0.63"
 lazy_static = "1.4.0"
 log = "0.4.17"
-pyo3 = { version = "0.17.1", features = ["extension-module", "macros", "anyhow", "abi3", "abi3-py37"] }
+pyo3 = { version = "0.17.1", features = ["macros", "anyhow", "abi3", "abi3-py37"] }
 pyo3-log = "0.7.0"
 pythonize = "0.17.0"
 regex = "1.6.0"
 serde = { version = "1.0.144", features = ["derive"] }
 serde_json = "1.0.85"
 
+[features]
+extension-module = ["pyo3/extension-module"]
+default = ["extension-module"]
+
 [build-dependencies]
 blake2 = "0.10.4"
 hex = "0.4.3"

rust/benches/evaluator.rs

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 #![feature(test)]
+use std::collections::BTreeSet;
 use synapse::push::{
     evaluator::PushRuleEvaluator, Condition, EventMatchCondition, FilteredPushRules, PushRules,
 };
@@ -32,6 +33,9 @@ fn bench_match_exact(b: &mut Bencher) {
 
     let eval = PushRuleEvaluator::py_new(
         flattened_keys,
+        false,
+        BTreeSet::new(),
+        false,
         10,
         Some(0),
         Default::default(),
@@ -68,6 +72,9 @@ fn bench_match_word(b: &mut Bencher) {
 
     let eval = PushRuleEvaluator::py_new(
         flattened_keys,
+        false,
+        BTreeSet::new(),
+        false,
         10,
         Some(0),
         Default::default(),
@@ -104,6 +111,9 @@ fn bench_match_word_miss(b: &mut Bencher) {
 
     let eval = PushRuleEvaluator::py_new(
         flattened_keys,
+        false,
+        BTreeSet::new(),
+        false,
         10,
         Some(0),
         Default::default(),
@@ -140,6 +150,9 @@ fn bench_eval_message(b: &mut Bencher) {
 
     let eval = PushRuleEvaluator::py_new(
         flattened_keys,
+        false,
+        BTreeSet::new(),
+        false,
         10,
         Some(0),
         Default::default(),
@@ -156,6 +169,8 @@ fn bench_eval_message(b: &mut Bencher) {
         false,
         false,
         false,
+        false,
+        false,
     );
 
     b.iter(|| eval.run(&rules, Some("bob"), Some("person")));

rust/src/lib.rs

@@ -1,7 +1,13 @@
+use lazy_static::lazy_static;
 use pyo3::prelude::*;
+use pyo3_log::ResetHandle;
 
 pub mod push;
 
+lazy_static! {
+    static ref LOGGING_HANDLE: ResetHandle = pyo3_log::init();
+}
+
 /// Returns the hash of all the rust source files at the time it was compiled.
 ///
 /// Used by python to detect if the rust library is outdated.
@@ -17,13 +23,20 @@ fn sum_as_string(a: usize, b: usize) -> PyResult<String> {
     Ok((a + b).to_string())
 }
 
+/// Reset the cached logging configuration of pyo3-log to pick up any changes
+/// in the Python logging configuration.
+///
+#[pyfunction]
+fn reset_logging_config() {
+    LOGGING_HANDLE.reset();
+}
+
 /// The entry point for defining the Python module.
 #[pymodule]
 fn synapse_rust(py: Python<'_>, m: &PyModule) -> PyResult<()> {
-    pyo3_log::init();
-
     m.add_function(wrap_pyfunction!(sum_as_string, m)?)?;
     m.add_function(wrap_pyfunction!(get_rust_file_digest, m)?)?;
+    m.add_function(wrap_pyfunction!(reset_logging_config, m)?)?;
 
     push::register_module(py, m)?;
 

rust/src/push/base_rules.rs

@@ -63,6 +63,23 @@ pub const BASE_PREPEND_OVERRIDE_RULES: &[PushRule] = &[PushRule {
 }];
 
 pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
+    // We don't want to notify on edits. Not only can this be confusing in real
+    // time (2 notifications, one message) but it's especially confusing
+    // if a bridge needs to edit a previously backfilled message.
+    PushRule {
+        rule_id: Cow::Borrowed("global/override/.com.beeper.suppress_edits"),
+        priority_class: 5,
+        conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
+            EventMatchCondition {
+                key: Cow::Borrowed("content.m.relates_to.rel_type"),
+                pattern: Some(Cow::Borrowed("m.replace")),
+                pattern_type: None,
+            },
+        ))]),
+        actions: Cow::Borrowed(&[Action::DontNotify]),
+        default: true,
+        default_enabled: true,
+    },
     PushRule {
         rule_id: Cow::Borrowed("global/override/.m.rule.suppress_notices"),
         priority_class: 5,
@@ -131,6 +148,14 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
         default: true,
         default_enabled: true,
     },
+    PushRule {
+        rule_id: Cow::Borrowed(".org.matrix.msc3952.is_user_mention"),
+        priority_class: 5,
+        conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::IsUserMention)]),
+        actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_ACTION, SOUND_ACTION]),
+        default: true,
+        default_enabled: true,
+    },
     PushRule {
         rule_id: Cow::Borrowed("global/override/.m.rule.contains_display_name"),
         priority_class: 5,
@@ -139,6 +164,19 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
         default: true,
         default_enabled: true,
     },
+    PushRule {
+        rule_id: Cow::Borrowed(".org.matrix.msc3952.is_room_mention"),
+        priority_class: 5,
+        conditions: Cow::Borrowed(&[
+            Condition::Known(KnownCondition::IsRoomMention),
+            Condition::Known(KnownCondition::SenderNotificationPermission {
+                key: Cow::Borrowed("room"),
+            }),
+        ]),
+        actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_ACTION]),
+        default: true,
+        default_enabled: true,
+    },
     PushRule {
         rule_id: Cow::Borrowed("global/override/.m.rule.roomnotif"),
         priority_class: 5,

rust/src/push/evaluator.rs

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use std::collections::BTreeMap;
+use std::collections::{BTreeMap, BTreeSet};
 
 use anyhow::{Context, Error};
 use lazy_static::lazy_static;
@@ -68,6 +68,13 @@ pub struct PushRuleEvaluator {
     /// The "content.body", if any.
     body: String,
 
+    /// True if the event has a mentions property and MSC3952 support is enabled.
+    has_mentions: bool,
+    /// The user mentions that were part of the message.
+    user_mentions: BTreeSet<String>,
+    /// True if the message is a room message.
+    room_mention: bool,
+
     /// The number of users in the room.
     room_member_count: u64,
 
@@ -100,6 +107,9 @@ impl PushRuleEvaluator {
     #[new]
     pub fn py_new(
         flattened_keys: BTreeMap<String, String>,
+        has_mentions: bool,
+        user_mentions: BTreeSet<String>,
+        room_mention: bool,
         room_member_count: u64,
         sender_power_level: Option<i64>,
         notification_power_levels: BTreeMap<String, i64>,
@@ -116,6 +126,9 @@ impl PushRuleEvaluator {
         Ok(PushRuleEvaluator {
             flattened_keys,
             body,
+            has_mentions,
+            user_mentions,
+            room_mention,
             room_member_count,
             notification_power_levels,
             sender_power_level,
@@ -146,6 +159,19 @@ impl PushRuleEvaluator {
             }
 
             let rule_id = &push_rule.rule_id().to_string();
+
+            // For backwards-compatibility the legacy mention rules are disabled
+            // if the event contains the 'm.mentions' property (and if the
+            // experimental feature is enabled, both of these are represented
+            // by the has_mentions flag).
+            if self.has_mentions
+                && (rule_id == "global/override/.m.rule.contains_display_name"
+                    || rule_id == "global/content/.m.rule.contains_user_name"
+                    || rule_id == "global/override/.m.rule.roomnotif")
+            {
+                continue;
+            }
+
             let extev_flag = &RoomVersionFeatures::ExtensibleEvents.as_str().to_string();
             let supports_extensible_events = self.room_version_feature_flags.contains(extev_flag);
             let safe_from_rver_condition = SAFE_EXTENSIBLE_EVENTS_RULE_IDS.contains(rule_id);
@@ -229,6 +255,14 @@ impl PushRuleEvaluator {
             KnownCondition::RelatedEventMatch(event_match) => {
                 self.match_related_event_match(event_match, user_id)?
             }
+            KnownCondition::IsUserMention => {
+                if let Some(uid) = user_id {
+                    self.user_mentions.contains(uid)
+                } else {
+                    false
+                }
+            }
+            KnownCondition::IsRoomMention => self.room_mention,
             KnownCondition::ContainsDisplayName => {
                 if let Some(dn) = display_name {
                     if !dn.is_empty() {
@@ -424,6 +458,9 @@ fn push_rule_evaluator() {
     flattened_keys.insert("content.body".to_string(), "foo bar bob hello".to_string());
     let evaluator = PushRuleEvaluator::py_new(
         flattened_keys,
+        false,
+        BTreeSet::new(),
+        false,
         10,
         Some(0),
         BTreeMap::new(),
@@ -449,6 +486,9 @@ fn test_requires_room_version_supports_condition() {
     let flags = vec![RoomVersionFeatures::ExtensibleEvents.as_str().to_string()];
     let evaluator = PushRuleEvaluator::py_new(
         flattened_keys,
+        false,
+        BTreeSet::new(),
+        false,
         10,
         Some(0),
         BTreeMap::new(),
@@ -483,7 +523,7 @@ fn test_requires_room_version_supports_condition() {
     };
     let rules = PushRules::new(vec![custom_rule]);
     result = evaluator.run(
-        &FilteredPushRules::py_new(rules, BTreeMap::new(), true, false, true),
+        &FilteredPushRules::py_new(rules, BTreeMap::new(), true, false, true, false, false),
         None,
         None,
     );

rust/src/push/mod.rs

@@ -269,6 +269,10 @@ pub enum KnownCondition {
     EventMatch(EventMatchCondition),
     #[serde(rename = "im.nheko.msc3664.related_event_match")]
     RelatedEventMatch(RelatedEventMatchCondition),
+    #[serde(rename = "org.matrix.msc3952.is_user_mention")]
+    IsUserMention,
+    #[serde(rename = "org.matrix.msc3952.is_room_mention")]
+    IsRoomMention,
     ContainsDisplayName,
     RoomMemberCount {
         #[serde(skip_serializing_if = "Option::is_none")]
@@ -414,6 +418,8 @@ pub struct FilteredPushRules {
     msc1767_enabled: bool,
     msc3381_polls_enabled: bool,
     msc3664_enabled: bool,
+    msc3952_intentional_mentions: bool,
+    msc3958_suppress_edits_enabled: bool,
 }
 
 #[pymethods]
@@ -425,6 +431,8 @@ impl FilteredPushRules {
         msc1767_enabled: bool,
         msc3381_polls_enabled: bool,
         msc3664_enabled: bool,
+        msc3952_intentional_mentions: bool,
+        msc3958_suppress_edits_enabled: bool,
     ) -> Self {
         Self {
             push_rules,
@@ -432,6 +440,8 @@ impl FilteredPushRules {
             msc1767_enabled,
             msc3381_polls_enabled,
             msc3664_enabled,
+            msc3952_intentional_mentions,
+            msc3958_suppress_edits_enabled,
         }
     }
 
@@ -465,6 +475,16 @@ impl FilteredPushRules {
                     return false;
                 }
 
+                if !self.msc3952_intentional_mentions && rule.rule_id.contains("org.matrix.msc3952")
+                {
+                    return false;
+                }
+                if !self.msc3958_suppress_edits_enabled
+                    && rule.rule_id == "global/override/.com.beeper.suppress_edits"
+                {
+                    return false;
+                }
+
                 true
             })
             .map(|r| {
@@ -522,6 +542,28 @@ fn test_deserialize_unstable_msc3931_condition() {
     ));
 }
 
+#[test]
+fn test_deserialize_unstable_msc3952_user_condition() {
+    let json = r#"{"kind":"org.matrix.msc3952.is_user_mention"}"#;
+
+    let condition: Condition = serde_json::from_str(json).unwrap();
+    assert!(matches!(
+        condition,
+        Condition::Known(KnownCondition::IsUserMention)
+    ));
+}
+
+#[test]
+fn test_deserialize_unstable_msc3952_room_condition() {
+    let json = r#"{"kind":"org.matrix.msc3952.is_room_mention"}"#;
+
+    let condition: Condition = serde_json::from_str(json).unwrap();
+    assert!(matches!(
+        condition,
+        Condition::Known(KnownCondition::IsRoomMention)
+    ));
+}
+
 #[test]
 fn test_deserialize_custom_condition() {
     let json = r#"{"kind":"custom_tag"}"#;

scripts-dev/complement.sh

@@ -228,6 +228,11 @@ else
   test_tags="$test_tags,msc2716"
 fi
 
+if [[ -n "$ASYNCIO_REACTOR" ]]; then
+  # Enable the Twisted asyncio reactor
+  export PASS_SYNAPSE_COMPLEMENT_USE_ASYNCIO_REACTOR=true
+fi
+
 
 if [[ -n "$SYNAPSE_TEST_LOG_LEVEL" ]]; then
   # Set the log level to what is desired

scripts-dev/release.py

@@ -438,7 +438,7 @@ def _upload(gh_token: Optional[str]) -> None:
     repo = get_repo_and_check_clean_checkout()
     tag = repo.tag(f"refs/tags/{tag_name}")
     if repo.head.commit != tag.commit:
-        click.echo("Tag {tag_name} (tag.commit) is not currently checked out!")
+        click.echo(f"Tag {tag_name} ({tag.commit}) is not currently checked out!")
         click.get_current_context().abort()
 
     # Query all the assets corresponding to this release.

stubs/synapse/synapse_rust/__init__.pyi

@@ -1,2 +1,3 @@
 def sum_as_string(a: int, b: int) -> str: ...
 def get_rust_file_digest() -> str: ...
+def reset_logging_config() -> None: ...

stubs/synapse/synapse_rust/push.pyi

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from typing import Any, Collection, Dict, Mapping, Optional, Sequence, Tuple, Union
+from typing import Any, Collection, Dict, Mapping, Optional, Sequence, Set, Tuple, Union
 
 from synapse.types import JsonDict
 
@@ -46,6 +46,8 @@ class FilteredPushRules:
         msc1767_enabled: bool,
         msc3381_polls_enabled: bool,
         msc3664_enabled: bool,
+        msc3952_intentional_mentions: bool,
+        msc3958_suppress_edits_enabled: bool,
     ): ...
     def rules(self) -> Collection[Tuple[PushRule, bool]]: ...
 
@@ -55,6 +57,9 @@ class PushRuleEvaluator:
     def __init__(
         self,
         flattened_keys: Mapping[str, str],
+        has_mentions: bool,
+        user_mentions: Set[str],
+        room_mention: bool,
         room_member_count: int,
         sender_power_level: Optional[int],
         notification_power_levels: Mapping[str, int],

synapse/api/constants.py

@@ -17,6 +17,8 @@
 
 """Contains constants from the specification."""
 
+import enum
+
 from typing_extensions import Final
 
 # the max size of a (canonical-json-encoded) event
@@ -231,6 +233,9 @@ class EventContentFields:
     # The authorising user for joining a restricted room.
     AUTHORISING_USER: Final = "join_authorised_via_users_server"
 
+    # Use for mentioning users.
+    MSC3952_MENTIONS: Final = "org.matrix.msc3952.mentions"
+
     # an unspecced field added to to-device messages to identify them uniquely-ish
     TO_DEVICE_MSGID: Final = "org.matrix.msgid"
 
@@ -290,3 +295,8 @@ class ApprovalNoticeMedium:
 
     NONE = "org.matrix.msc3866.none"
     EMAIL = "org.matrix.msc3866.email"
+
+
+class Direction(enum.Enum):
+    BACKWARDS = "b"
+    FORWARDS = "f"

synapse/api/filtering.py

@@ -252,9 +252,9 @@ class FilterCollection:
         return self._room_timeline_filter.unread_thread_notifications
 
     async def filter_presence(
-        self, events: Iterable[UserPresenceState]
+        self, presence_states: Iterable[UserPresenceState]
     ) -> List[UserPresenceState]:
-        return await self._presence_filter.filter(events)
+        return await self._presence_filter.filter(presence_states)
 
     async def filter_account_data(self, events: Iterable[JsonDict]) -> List[JsonDict]:
         return await self._account_data.filter(events)
@@ -283,6 +283,9 @@ class FilterCollection:
             await self._room_filter.filter(events)
         )
 
+    def blocks_all_rooms(self) -> bool:
+        return self._room_filter.filters_all_rooms()
+
     def blocks_all_presence(self) -> bool:
         return (
             self._presence_filter.filters_all_types()

synapse/app/admin_cmd.py

@@ -35,6 +35,7 @@ from synapse.storage.databases.main.appservice import (
     ApplicationServiceTransactionWorkerStore,
     ApplicationServiceWorkerStore,
 )
+from synapse.storage.databases.main.client_ips import ClientIpWorkerStore
 from synapse.storage.databases.main.deviceinbox import DeviceInboxWorkerStore
 from synapse.storage.databases.main.devices import DeviceWorkerStore
 from synapse.storage.databases.main.event_federation import EventFederationWorkerStore
@@ -43,6 +44,7 @@ from synapse.storage.databases.main.event_push_actions import (
 )
 from synapse.storage.databases.main.events_worker import EventsWorkerStore
 from synapse.storage.databases.main.filtering import FilteringWorkerStore
+from synapse.storage.databases.main.profile import ProfileWorkerStore
 from synapse.storage.databases.main.push_rule import PushRulesWorkerStore
 from synapse.storage.databases.main.receipts import ReceiptsWorkerStore
 from synapse.storage.databases.main.registration import RegistrationWorkerStore
@@ -54,7 +56,7 @@ from synapse.storage.databases.main.state import StateGroupWorkerStore
 from synapse.storage.databases.main.stream import StreamWorkerStore
 from synapse.storage.databases.main.tags import TagsWorkerStore
 from synapse.storage.databases.main.user_erasure_store import UserErasureWorkerStore
-from synapse.types import StateMap
+from synapse.types import JsonDict, StateMap
 from synapse.util import SYNAPSE_VERSION
 from synapse.util.logcontext import LoggingContext
 
@@ -63,6 +65,7 @@ logger = logging.getLogger("synapse.app.admin_cmd")
 
 class AdminCmdSlavedStore(
     FilteringWorkerStore,
+    ClientIpWorkerStore,
     DeviceWorkerStore,
     TagsWorkerStore,
     DeviceInboxWorkerStore,
@@ -82,6 +85,7 @@ class AdminCmdSlavedStore(
     EventsWorkerStore,
     RegistrationWorkerStore,
     RoomWorkerStore,
+    ProfileWorkerStore,
 ):
     def __init__(
         self,
@@ -192,6 +196,32 @@ class FileExfiltrationWriter(ExfiltrationWriter):
             for event in state.values():
                 print(json.dumps(event), file=f)
 
+    def write_profile(self, profile: JsonDict) -> None:
+        user_directory = os.path.join(self.base_directory, "user_data")
+        os.makedirs(user_directory, exist_ok=True)
+        profile_file = os.path.join(user_directory, "profile")
+
+        with open(profile_file, "a") as f:
+            print(json.dumps(profile), file=f)
+
+    def write_devices(self, devices: List[JsonDict]) -> None:
+        user_directory = os.path.join(self.base_directory, "user_data")
+        os.makedirs(user_directory, exist_ok=True)
+        device_file = os.path.join(user_directory, "devices")
+
+        for device in devices:
+            with open(device_file, "a") as f:
+                print(json.dumps(device), file=f)
+
+    def write_connections(self, connections: List[JsonDict]) -> None:
+        user_directory = os.path.join(self.base_directory, "user_data")
+        os.makedirs(user_directory, exist_ok=True)
+        connection_file = os.path.join(user_directory, "connections")
+
+        for connection in connections:
+            with open(connection_file, "a") as f:
+                print(json.dumps(connection), file=f)
+
     def finished(self) -> str:
         return self.base_directory
 

synapse/app/complement_fork_starter.py

@@ -110,6 +110,8 @@ def _worker_entrypoint(
     and then kick off the worker's main() function.
     """
 
+    from synapse.util.stringutils import strtobool
+
     sys.argv = args
 
     # reset the custom signal handlers that we installed, so that the children start
@@ -117,9 +119,24 @@ def _worker_entrypoint(
     for sig, handler in _original_signal_handlers.items():
         signal.signal(sig, handler)
 
-    from twisted.internet.epollreactor import EPollReactor
+    # Install the asyncio reactor if the
+    # SYNAPSE_COMPLEMENT_FORKING_LAUNCHER_ASYNC_IO_REACTOR is set to 1. The
+    # SYNAPSE_ASYNC_IO_REACTOR variable would be used, but then causes
+    # synapse/__init__.py to also try to install an asyncio reactor.
+    if strtobool(
+        os.environ.get("SYNAPSE_COMPLEMENT_FORKING_LAUNCHER_ASYNC_IO_REACTOR", "0")
+    ):
+        import asyncio
+
+        from twisted.internet.asyncioreactor import AsyncioSelectorReactor
+
+        reactor = AsyncioSelectorReactor(asyncio.get_event_loop())
+        proxy_reactor._install_real_reactor(reactor)
+    else:
+        from twisted.internet.epollreactor import EPollReactor
+
+        proxy_reactor._install_real_reactor(EPollReactor())
 
-    proxy_reactor._install_real_reactor(EPollReactor())
     func()
 
 

synapse/config/_base.py

@@ -174,15 +174,29 @@ class Config:
 
     @staticmethod
     def parse_size(value: Union[str, int]) -> int:
-        if isinstance(value, int):
+        """Interpret `value` as a number of bytes.
+
+        If an integer is provided it is treated as bytes and is unchanged.
+
+        String byte sizes can have a suffix of 'K' or `M`, representing kibibytes and
+        mebibytes respectively. No suffix is understood as a plain byte count.
+
+        Raises:
+            TypeError, if given something other than an integer or a string
+            ValueError: if given a string not of the form described above.
+        """
+        if type(value) is int:
             return value
-        sizes = {"K": 1024, "M": 1024 * 1024}
-        size = 1
-        suffix = value[-1]
-        if suffix in sizes:
-            value = value[:-1]
-            size = sizes[suffix]
-        return int(value) * size
+        elif type(value) is str:
+            sizes = {"K": 1024, "M": 1024 * 1024}
+            size = 1
+            suffix = value[-1]
+            if suffix in sizes:
+                value = value[:-1]
+                size = sizes[suffix]
+            return int(value) * size
+        else:
+            raise TypeError(f"Bad byte size {value!r}")
 
     @staticmethod
     def parse_duration(value: Union[str, int]) -> int:
@@ -198,22 +212,36 @@ class Config:
 
         Returns:
             The number of milliseconds in the duration.
+
+        Raises:
+            TypeError, if given something other than an integer or a string
+            ValueError: if given a string not of the form described above.
         """
-        if isinstance(value, int):
+        if type(value) is int:
             return value
-        second = 1000
-        minute = 60 * second
-        hour = 60 * minute
-        day = 24 * hour
-        week = 7 * day
-        year = 365 * day
-        sizes = {"s": second, "m": minute, "h": hour, "d": day, "w": week, "y": year}
-        size = 1
-        suffix = value[-1]
-        if suffix in sizes:
-            value = value[:-1]
-            size = sizes[suffix]
-        return int(value) * size
+        elif type(value) is str:
+            second = 1000
+            minute = 60 * second
+            hour = 60 * minute
+            day = 24 * hour
+            week = 7 * day
+            year = 365 * day
+            sizes = {
+                "s": second,
+                "m": minute,
+                "h": hour,
+                "d": day,
+                "w": week,
+                "y": year,
+            }
+            size = 1
+            suffix = value[-1]
+            if suffix in sizes:
+                value = value[:-1]
+                size = sizes[suffix]
+            return int(value) * size
+        else:
+            raise TypeError(f"Bad duration {value!r}")
 
     @staticmethod
     def abspath(file_path: str) -> str:

synapse/config/cache.py

@@ -126,7 +126,7 @@ class CacheConfig(Config):
 
         cache_config = config.get("caches") or {}
         self.global_factor = cache_config.get("global_factor", _DEFAULT_FACTOR_SIZE)
-        if not isinstance(self.global_factor, (int, float)):
+        if type(self.global_factor) not in (int, float):
             raise ConfigError("caches.global_factor must be a number.")
 
         # Load cache factors from the config
@@ -151,7 +151,7 @@ class CacheConfig(Config):
         )
 
         for cache, factor in individual_factors.items():
-            if not isinstance(factor, (int, float)):
+            if type(factor) not in (int, float):
                 raise ConfigError(
                     "caches.per_cache_factors.%s must be a number" % (cache,)
                 )

synapse/config/experimental.py

@@ -168,3 +168,13 @@ class ExperimentalConfig(Config):
 
         # MSC3925: do not replace events with their edits
         self.msc3925_inhibit_edit = experimental.get("msc3925_inhibit_edit", False)
+
+        # MSC3952: Intentional mentions
+        self.msc3952_intentional_mentions = experimental.get(
+            "msc3952_intentional_mentions", False
+        )
+
+        # MSC3959: Do not generate notifications for edits.
+        self.msc3958_supress_edit_notifs = experimental.get(
+            "msc3958_supress_edit_notifs", False
+        )

synapse/config/logger.py

@@ -34,6 +34,7 @@ from twisted.logger import (
 
 from synapse.logging.context import LoggingContextFilter
 from synapse.logging.filter import MetadataFilter
+from synapse.synapse_rust import reset_logging_config
 from synapse.types import JsonDict
 
 from ..util import SYNAPSE_VERSION
@@ -200,24 +201,6 @@ def _setup_stdlib_logging(
     """
     Set up Python standard library logging.
     """
-    if log_config_path is None:
-        log_format = (
-            "%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s"
-            " - %(message)s"
-        )
-
-        logger = logging.getLogger("")
-        logger.setLevel(logging.INFO)
-        logging.getLogger("synapse.storage.SQL").setLevel(logging.INFO)
-
-        formatter = logging.Formatter(log_format)
-
-        handler = logging.StreamHandler()
-        handler.setFormatter(formatter)
-        logger.addHandler(handler)
-    else:
-        # Load the logging configuration.
-        _load_logging_config(log_config_path)
 
     # We add a log record factory that runs all messages through the
     # LoggingContextFilter so that we get the context *at the time we log*
@@ -237,6 +220,26 @@ def _setup_stdlib_logging(
 
     logging.setLogRecordFactory(factory)
 
+    # Configure the logger with the initial configuration.
+    if log_config_path is None:
+        log_format = (
+            "%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s"
+            " - %(message)s"
+        )
+
+        logger = logging.getLogger("")
+        logger.setLevel(logging.INFO)
+        logging.getLogger("synapse.storage.SQL").setLevel(logging.INFO)
+
+        formatter = logging.Formatter(log_format)
+
+        handler = logging.StreamHandler()
+        handler.setFormatter(formatter)
+        logger.addHandler(handler)
+    else:
+        # Load the logging configuration.
+        _load_logging_config(log_config_path)
+
     # Route Twisted's native logging through to the standard library logging
     # system.
     observer = STDLibLogObserver()
@@ -294,6 +297,9 @@ def _load_logging_config(log_config_path: str) -> None:
 
     logging.config.dictConfig(log_config)
 
+    # Blow away the pyo3-log cache so that it reloads the configuration.
+    reset_logging_config()
+
 
 def _reload_logging_config(log_config_path: Optional[str]) -> None:
     """

synapse/config/server.py

@@ -904,7 +904,7 @@ def parse_listener_def(num: int, listener: Any) -> ListenerConfig:
         raise ConfigError(DIRECT_TCP_ERROR, ("listeners", str(num), "type"))
 
     port = listener.get("port")
-    if not isinstance(port, int):
+    if type(port) is not int:
         raise ConfigError("Listener configuration is lacking a valid 'port' option")
 
     tls = listener.get("tls", False)

synapse/event_auth.py

@@ -875,11 +875,11 @@ def _check_power_levels(
                 "kick",
                 "invite",
             }:
-                if not isinstance(v, int):
+                if type(v) is not int:
                     raise SynapseError(400, f"{v!r} must be an integer.")
             if k in {"events", "notifications", "users"}:
                 if not isinstance(v, collections.abc.Mapping) or not all(
-                    isinstance(v, int) for v in v.values()
+                    type(v) is int for v in v.values()
                 ):
                     raise SynapseError(
                         400,

synapse/events/utils.py

@@ -648,10 +648,10 @@ def _copy_power_level_value_as_integer(
 ) -> None:
     """Set `power_levels[key]` to the integer represented by `old_value`.
 
-    :raises TypeError: if `old_value` is not an integer, nor a base-10 string
+    :raises TypeError: if `old_value` is neither an integer nor a base-10 string
         representation of an integer.
     """
-    if isinstance(old_value, int):
+    if type(old_value) is int:
         power_levels[key] = old_value
         return
 
@@ -679,7 +679,7 @@ def validate_canonicaljson(value: Any) -> None:
     * Floats
     * NaN, Infinity, -Infinity
     """
-    if isinstance(value, int):
+    if type(value) is int:
         if value < CANONICALJSON_MIN_INT or CANONICALJSON_MAX_INT < value:
             raise SynapseError(400, "JSON integer out of range", Codes.BAD_JSON)
 

synapse/events/validator.py

@@ -139,7 +139,7 @@ class EventValidator:
         max_lifetime = event.content.get("max_lifetime")
 
         if min_lifetime is not None:
-            if not isinstance(min_lifetime, int):
+            if type(min_lifetime) is not int:
                 raise SynapseError(
                     code=400,
                     msg="'min_lifetime' must be an integer",
@@ -147,7 +147,7 @@ class EventValidator:
                 )
 
         if max_lifetime is not None:
-            if not isinstance(max_lifetime, int):
+            if type(max_lifetime) is not int:
                 raise SynapseError(
                     code=400,
                     msg="'max_lifetime' must be an integer",

synapse/federation/federation_base.py

@@ -280,7 +280,7 @@ def event_from_pdu_json(pdu_json: JsonDict, room_version: RoomVersion) -> EventB
         _strip_unsigned_values(pdu_json)
 
     depth = pdu_json["depth"]
-    if not isinstance(depth, int):
+    if type(depth) is not int:
         raise SynapseError(400, "Depth %r not an intger" % (depth,), Codes.BAD_JSON)
 
     if depth < 0:

synapse/federation/federation_client.py

@@ -19,6 +19,7 @@ import itertools
 import logging
 from typing import (
     TYPE_CHECKING,
+    AbstractSet,
     Awaitable,
     Callable,
     Collection,
@@ -37,7 +38,7 @@ from typing import (
 import attr
 from prometheus_client import Counter
 
-from synapse.api.constants import EventContentFields, EventTypes, Membership
+from synapse.api.constants import Direction, EventContentFields, EventTypes, Membership
 from synapse.api.errors import (
     CodeMessageException,
     Codes,
@@ -110,8 +111,9 @@ class SendJoinResult:
     # True if 'state' elides non-critical membership events
     partial_state: bool
 
-    # if 'partial_state' is set, a list of the servers in the room (otherwise empty)
-    servers_in_room: List[str]
+    # If 'partial_state' is set, a set of the servers in the room (otherwise empty).
+    # Always contains the server we joined off.
+    servers_in_room: AbstractSet[str]
 
 
 class FederationClient(FederationBase):
@@ -1152,15 +1154,24 @@ class FederationClient(FederationBase):
                     % (auth_chain_create_events,)
                 )
 
-            if response.members_omitted and not response.servers_in_room:
-                raise InvalidResponseError(
-                    "members_omitted was set, but no servers were listed in the room"
-                )
+            servers_in_room = None
+            if response.servers_in_room is not None:
+                servers_in_room = set(response.servers_in_room)
 
-            if response.members_omitted and not partial_state:
-                raise InvalidResponseError(
-                    "members_omitted was set, but we asked for full state"
-                )
+            if response.members_omitted:
+                if not servers_in_room:
+                    raise InvalidResponseError(
+                        "members_omitted was set, but no servers were listed in the room"
+                    )
+
+                if not partial_state:
+                    raise InvalidResponseError(
+                        "members_omitted was set, but we asked for full state"
+                    )
+
+                # `servers_in_room` is supposed to be a complete list.
+                # Fix things up in case the remote homeserver is badly behaved.
+                servers_in_room.add(destination)
 
             return SendJoinResult(
                 event=event,
@@ -1168,7 +1179,7 @@ class FederationClient(FederationBase):
                 auth_chain=signed_auth,
                 origin=destination,
                 partial_state=response.members_omitted,
-                servers_in_room=response.servers_in_room or [],
+                servers_in_room=servers_in_room or frozenset(),
             )
 
         # MSC3083 defines additional error codes for room joins.
@@ -1680,7 +1691,12 @@ class FederationClient(FederationBase):
         return result
 
     async def timestamp_to_event(
-        self, *, destinations: List[str], room_id: str, timestamp: int, direction: str
+        self,
+        *,
+        destinations: List[str],
+        room_id: str,
+        timestamp: int,
+        direction: Direction,
     ) -> Optional["TimestampToEventResponse"]:
         """
         Calls each remote federating server from `destinations` asking for their closest
@@ -1693,7 +1709,7 @@ class FederationClient(FederationBase):
             room_id: Room to fetch the event from
             timestamp: The point in time (inclusive) we should navigate from in
                 the given direction to find the closest event.
-            direction: ["f"|"b"] to indicate whether we should navigate forward
+            direction: indicates whether we should navigate forward
                 or backward from the given timestamp to find the closest event.
 
         Returns:
@@ -1738,7 +1754,7 @@ class FederationClient(FederationBase):
             return None
 
     async def _timestamp_to_event_from_destination(
-        self, destination: str, room_id: str, timestamp: int, direction: str
+        self, destination: str, room_id: str, timestamp: int, direction: Direction
     ) -> "TimestampToEventResponse":
         """
         Calls a remote federating server at `destination` asking for their
@@ -1751,7 +1767,7 @@ class FederationClient(FederationBase):
             room_id: Room to fetch the event from
             timestamp: The point in time (inclusive) we should navigate from in
                 the given direction to find the closest event.
-            direction: ["f"|"b"] to indicate whether we should navigate forward
+            direction: indicates whether we should navigate forward
                 or backward from the given timestamp to find the closest event.
 
         Returns:
@@ -1864,7 +1880,7 @@ class TimestampToEventResponse:
             )
 
         origin_server_ts = d.get("origin_server_ts")
-        if not isinstance(origin_server_ts, int):
+        if type(origin_server_ts) is not int:
             raise ValueError(
                 "Invalid response: 'origin_server_ts' must be a int but received %r"
                 % origin_server_ts

synapse/federation/federation_server.py

@@ -34,7 +34,13 @@ from prometheus_client import Counter, Gauge, Histogram
 from twisted.internet.abstract import isIPAddress
 from twisted.python import failure
 
-from synapse.api.constants import EduTypes, EventContentFields, EventTypes, Membership
+from synapse.api.constants import (
+    Direction,
+    EduTypes,
+    EventContentFields,
+    EventTypes,
+    Membership,
+)
 from synapse.api.errors import (
     AuthError,
     Codes,
@@ -62,7 +68,9 @@ from synapse.logging.context import (
     run_in_background,
 )
 from synapse.logging.opentracing import (
+    SynapseTags,
     log_kv,
+    set_tag,
     start_active_span_from_edu,
     tag_args,
     trace,
@@ -216,7 +224,7 @@ class FederationServer(FederationBase):
         return 200, res
 
     async def on_timestamp_to_event_request(
-        self, origin: str, room_id: str, timestamp: int, direction: str
+        self, origin: str, room_id: str, timestamp: int, direction: Direction
     ) -> Tuple[int, Dict[str, Any]]:
         """When we receive a federated `/timestamp_to_event` request,
         handle all of the logic for validating and fetching the event.
@@ -226,7 +234,7 @@ class FederationServer(FederationBase):
             room_id: Room to fetch the event from
             timestamp: The point in time (inclusive) we should navigate from in
                 the given direction to find the closest event.
-            direction: ["f"|"b"] to indicate whether we should navigate forward
+            direction: indicates whether we should navigate forward
                 or backward from the given timestamp to find the closest event.
 
         Returns:
@@ -678,6 +686,10 @@ class FederationServer(FederationBase):
         room_id: str,
         caller_supports_partial_state: bool = False,
     ) -> Dict[str, Any]:
+        set_tag(
+            SynapseTags.SEND_JOIN_RESPONSE_IS_PARTIAL_STATE,
+            caller_supports_partial_state,
+        )
         await self._room_member_handler._join_rate_per_room_limiter.ratelimit(  # type: ignore[has-type]
             requester=None,
             key=room_id,

synapse/federation/sender/__init__.py

@@ -447,7 +447,7 @@ class FederationSender(AbstractFederationSender):
                             )
                         )
 
-                        if len(partial_state_destinations) > 0:
+                        if partial_state_destinations is not None:
                             destinations = partial_state_destinations
 
                     if destinations is None:

synapse/federation/transport/client.py

@@ -32,7 +32,7 @@ from typing import (
 import attr
 import ijson
 
-from synapse.api.constants import Membership
+from synapse.api.constants import Direction, Membership
 from synapse.api.errors import Codes, HttpResponseException, SynapseError
 from synapse.api.room_versions import RoomVersion
 from synapse.api.urls import (
@@ -169,7 +169,7 @@ class TransportLayerClient:
         )
 
     async def timestamp_to_event(
-        self, destination: str, room_id: str, timestamp: int, direction: str
+        self, destination: str, room_id: str, timestamp: int, direction: Direction
     ) -> Union[JsonDict, List]:
         """
         Calls a remote federating server at `destination` asking for their
@@ -180,7 +180,7 @@ class TransportLayerClient:
             room_id: Room to fetch the event from
             timestamp: The point in time (inclusive) we should navigate from in
                 the given direction to find the closest event.
-            direction: ["f"|"b"] to indicate whether we should navigate forward
+            direction: indicates whether we should navigate forward
                 or backward from the given timestamp to find the closest event.
 
         Returns:
@@ -194,7 +194,7 @@ class TransportLayerClient:
             room_id,
         )
 
-        args = {"ts": [str(timestamp)], "dir": [direction]}
+        args = {"ts": [str(timestamp)], "dir": [direction.value]}
 
         remote_response = await self.client.get_json(
             destination, path=path, args=args, try_trailing_slash_on_400=True

synapse/federation/transport/server/federation.py

@@ -26,7 +26,7 @@ from typing import (
 
 from typing_extensions import Literal
 
-from synapse.api.constants import EduTypes
+from synapse.api.constants import Direction, EduTypes
 from synapse.api.errors import Codes, SynapseError
 from synapse.api.room_versions import RoomVersions
 from synapse.api.urls import FEDERATION_UNSTABLE_PREFIX, FEDERATION_V2_PREFIX
@@ -234,9 +234,10 @@ class FederationTimestampLookupServlet(BaseFederationServerServlet):
         room_id: str,
     ) -> Tuple[int, JsonDict]:
         timestamp = parse_integer_from_args(query, "ts", required=True)
-        direction = parse_string_from_args(
-            query, "dir", default="f", allowed_values=["f", "b"], required=True
+        direction_str = parse_string_from_args(
+            query, "dir", allowed_values=["f", "b"], required=True
         )
+        direction = Direction(direction_str)
 
         return await self.handler.on_timestamp_to_event_request(
             origin, room_id, timestamp, direction

synapse/handlers/account_data.py

@@ -14,7 +14,7 @@
 # limitations under the License.
 import logging
 import random
-from typing import TYPE_CHECKING, Awaitable, Callable, Collection, List, Optional, Tuple
+from typing import TYPE_CHECKING, Awaitable, Callable, List, Optional, Tuple
 
 from synapse.api.constants import AccountDataTypes
 from synapse.replication.http.account_data import (
@@ -26,7 +26,7 @@ from synapse.replication.http.account_data import (
     ReplicationRemoveUserAccountDataRestServlet,
 )
 from synapse.streams import EventSource
-from synapse.types import JsonDict, StreamKeyType, UserID
+from synapse.types import JsonDict, StrCollection, StreamKeyType, UserID
 
 if TYPE_CHECKING:
     from synapse.server import HomeServer
@@ -314,7 +314,7 @@ class AccountDataEventSource(EventSource[int, JsonDict]):
     def __init__(self, hs: "HomeServer"):
         self.store = hs.get_datastores().main
 
-    def get_current_key(self, direction: str = "f") -> int:
+    def get_current_key(self) -> int:
         return self.store.get_max_account_data_stream_id()
 
     async def get_new_events(
@@ -322,7 +322,7 @@ class AccountDataEventSource(EventSource[int, JsonDict]):
         user: UserID,
         from_key: int,
         limit: int,
-        room_ids: Collection[str],
+        room_ids: StrCollection,
         is_guest: bool,
         explicit_room_id: Optional[str] = None,
     ) -> Tuple[List[JsonDict], int]:

synapse/handlers/admin.py

@@ -16,7 +16,7 @@ import abc
 import logging
 from typing import TYPE_CHECKING, Any, Dict, List, Optional, Set
 
-from synapse.api.constants import Membership
+from synapse.api.constants import Direction, Membership
 from synapse.events import EventBase
 from synapse.types import JsonDict, RoomStreamToken, StateMap, UserID
 from synapse.visibility import filter_events_for_client
@@ -30,6 +30,7 @@ logger = logging.getLogger(__name__)
 class AdminHandler:
     def __init__(self, hs: "HomeServer"):
         self.store = hs.get_datastores().main
+        self._device_handler = hs.get_device_handler()
         self._storage_controllers = hs.get_storage_controllers()
         self._state_storage_controller = self._storage_controllers.state
         self._msc3866_enabled = hs.config.experimental.msc3866.enabled
@@ -197,7 +198,7 @@ class AdminHandler:
             # efficient method perhaps but it does guarantee we get everything.
             while True:
                 events, _ = await self.store.paginate_room_events(
-                    room_id, from_key, to_key, limit=100, direction="f"
+                    room_id, from_key, to_key, limit=100, direction=Direction.FORWARDS
                 )
                 if not events:
                     break
@@ -247,6 +248,21 @@ class AdminHandler:
                 )
                 writer.write_state(room_id, event_id, state)
 
+        # Get the user profile
+        profile = await self.get_user(UserID.from_string(user_id))
+        if profile is not None:
+            writer.write_profile(profile)
+
+        # Get all devices the user has
+        devices = await self._device_handler.get_devices_by_user(user_id)
+        writer.write_devices(devices)
+
+        # Get all connections the user has
+        connections = await self.get_whois(UserID.from_string(user_id))
+        writer.write_connections(
+            connections["devices"][""]["sessions"][0]["connections"]
+        )
+
         return writer.finished()
 
 
@@ -297,6 +313,33 @@ class ExfiltrationWriter(metaclass=abc.ABCMeta):
         """
         raise NotImplementedError()
 
+    @abc.abstractmethod
+    def write_profile(self, profile: JsonDict) -> None:
+        """Write the profile of a user.
+
+        Args:
+            profile: The user profile.
+        """
+        raise NotImplementedError()
+
+    @abc.abstractmethod
+    def write_devices(self, devices: List[JsonDict]) -> None:
+        """Write the devices of a user.
+
+        Args:
+            devices: The list of devices.
+        """
+        raise NotImplementedError()
+
+    @abc.abstractmethod
+    def write_connections(self, connections: List[JsonDict]) -> None:
+        """Write the connections of a user.
+
+        Args:
+            connections: The list of connections / sessions.
+        """
+        raise NotImplementedError()
+
     @abc.abstractmethod
     def finished(self) -> Any:
         """Called when all data has successfully been exported and written.

synapse/handlers/device.py

@@ -18,7 +18,6 @@ from http import HTTPStatus
 from typing import (
     TYPE_CHECKING,
     Any,
-    Collection,
     Dict,
     Iterable,
     List,
@@ -45,6 +44,7 @@ from synapse.metrics.background_process_metrics import (
 )
 from synapse.types import (
     JsonDict,
+    StrCollection,
     StreamKeyType,
     StreamToken,
     UserID,
@@ -146,7 +146,7 @@ class DeviceWorkerHandler:
 
     @cancellable
     async def get_device_changes_in_shared_rooms(
-        self, user_id: str, room_ids: Collection[str], from_token: StreamToken
+        self, user_id: str, room_ids: StrCollection, from_token: StreamToken
     ) -> Set[str]:
         """Get the set of users whose devices have changed who share a room with
         the given user.
@@ -551,7 +551,7 @@ class DeviceHandler(DeviceWorkerHandler):
     @trace
     @measure_func("notify_device_update")
     async def notify_device_update(
-        self, user_id: str, device_ids: Collection[str]
+        self, user_id: str, device_ids: StrCollection
     ) -> None:
         """Notify that a user's device(s) has changed. Pokes the notifier, and
         remote servers if the user is local.
@@ -859,6 +859,7 @@ class DeviceHandler(DeviceWorkerHandler):
         known_hosts_at_join = await self.store.get_partial_state_servers_at_join(
             room_id
         )
+        assert known_hosts_at_join is not None
         potentially_changed_hosts.difference_update(known_hosts_at_join)
 
         potentially_changed_hosts.discard(self.server_name)

synapse/handlers/event_auth.py

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
-from typing import TYPE_CHECKING, Collection, List, Mapping, Optional, Union
+from typing import TYPE_CHECKING, List, Mapping, Optional, Union
 
 from synapse import event_auth
 from synapse.api.constants import (
@@ -29,7 +29,7 @@ from synapse.event_auth import (
 )
 from synapse.events import EventBase
 from synapse.events.builder import EventBuilder
-from synapse.types import StateMap, get_domain_from_id
+from synapse.types import StateMap, StrCollection, get_domain_from_id
 
 if TYPE_CHECKING:
     from synapse.server import HomeServer
@@ -290,7 +290,7 @@ class EventAuthHandler:
 
     async def get_rooms_that_allow_join(
         self, state_ids: StateMap[str]
-    ) -> Collection[str]:
+    ) -> StrCollection:
         """
         Generate a list of rooms in which membership allows access to a room.
 
@@ -331,7 +331,7 @@ class EventAuthHandler:
 
         return result
 
-    async def is_user_in_rooms(self, room_ids: Collection[str], user_id: str) -> bool:
+    async def is_user_in_rooms(self, room_ids: StrCollection, user_id: str) -> bool:
         """
         Check whether a user is a member of any of the provided rooms.
 

synapse/handlers/federation.py

@@ -22,7 +22,7 @@ from enum import Enum
 from http import HTTPStatus
 from typing import (
     TYPE_CHECKING,
-    Collection,
+    AbstractSet,
     Dict,
     Iterable,
     List,
@@ -70,7 +70,7 @@ from synapse.replication.http.federation import (
 )
 from synapse.storage.databases.main.events import PartialStateConflictError
 from synapse.storage.databases.main.events_worker import EventRedactBehaviour
-from synapse.types import JsonDict, get_domain_from_id
+from synapse.types import JsonDict, StrCollection, get_domain_from_id
 from synapse.types.state import StateFilter
 from synapse.util.async_helpers import Linearizer
 from synapse.util.retryutils import NotRetryingDestination
@@ -179,7 +179,7 @@ class FederationHandler:
         # A dictionary mapping room IDs to (initial destination, other destinations)
         # tuples.
         self._partial_state_syncs_maybe_needing_restart: Dict[
-            str, Tuple[Optional[str], Collection[str]]
+            str, Tuple[Optional[str], AbstractSet[str]]
         ] = {}
         # A lock guarding the partial state flag for rooms.
         # When the lock is held for a given room, no other concurrent code may
@@ -437,7 +437,7 @@ class FederationHandler:
             )
         )
 
-        async def try_backfill(domains: Collection[str]) -> bool:
+        async def try_backfill(domains: StrCollection) -> bool:
             # TODO: Should we try multiple of these at a time?
 
             # Number of contacted remote homeservers that have denied our backfill
@@ -1730,7 +1730,7 @@ class FederationHandler:
     def _start_partial_state_room_sync(
         self,
         initial_destination: Optional[str],
-        other_destinations: Collection[str],
+        other_destinations: AbstractSet[str],
         room_id: str,
     ) -> None:
         """Starts the background process to resync the state of a partial state room,
@@ -1812,7 +1812,7 @@ class FederationHandler:
     async def _sync_partial_state_room(
         self,
         initial_destination: Optional[str],
-        other_destinations: Collection[str],
+        other_destinations: AbstractSet[str],
         room_id: str,
     ) -> None:
         """Background process to resync the state of a partial-state room
@@ -1949,9 +1949,9 @@ class FederationHandler:
 
 def _prioritise_destinations_for_partial_state_resync(
     initial_destination: Optional[str],
-    other_destinations: Collection[str],
+    other_destinations: AbstractSet[str],
     room_id: str,
-) -> Collection[str]:
+) -> StrCollection:
     """Work out the order in which we should ask servers to resync events.
 
     If an `initial_destination` is given, it takes top priority. Otherwise

synapse/handlers/federation_event.py

@@ -80,6 +80,7 @@ from synapse.types import (
     PersistedEventPosition,
     RoomStreamToken,
     StateMap,
+    StrCollection,
     UserID,
     get_domain_from_id,
 )
@@ -615,7 +616,7 @@ class FederationEventHandler:
 
     @trace
     async def backfill(
-        self, dest: str, room_id: str, limit: int, extremities: Collection[str]
+        self, dest: str, room_id: str, limit: int, extremities: StrCollection
     ) -> None:
         """Trigger a backfill request to `dest` for the given `room_id`
 
@@ -1565,7 +1566,7 @@ class FederationEventHandler:
     @trace
     @tag_args
     async def _get_events_and_persist(
-        self, destination: str, room_id: str, event_ids: Collection[str]
+        self, destination: str, room_id: str, event_ids: StrCollection
     ) -> None:
         """Fetch the given events from a server, and persist them as outliers.
 

synapse/handlers/initial_sync.py

@@ -15,7 +15,13 @@
 import logging
 from typing import TYPE_CHECKING, List, Optional, Tuple, cast
 
-from synapse.api.constants import AccountDataTypes, EduTypes, EventTypes, Membership
+from synapse.api.constants import (
+    AccountDataTypes,
+    Direction,
+    EduTypes,
+    EventTypes,
+    Membership,
+)
 from synapse.api.errors import SynapseError
 from synapse.events import EventBase
 from synapse.events.utils import SerializeEventConfig
@@ -57,7 +63,13 @@ class InitialSyncHandler:
         self.validator = EventValidator()
         self.snapshot_cache: ResponseCache[
             Tuple[
-                str, Optional[StreamToken], Optional[StreamToken], str, int, bool, bool
+                str,
+                Optional[StreamToken],
+                Optional[StreamToken],
+                Direction,
+                int,
+                bool,
+                bool,
             ]
         ] = ResponseCache(hs.get_clock(), "initial_sync_cache")
         self._event_serializer = hs.get_event_client_serializer()

synapse/handlers/message.py

@@ -377,7 +377,7 @@ class MessageHandler:
         """
 
         expiry_ts = event.content.get(EventContentFields.SELF_DESTRUCT_AFTER)
-        if not isinstance(expiry_ts, int) or event.is_state():
+        if type(expiry_ts) is not int or event.is_state():
             return
 
         # _schedule_expiry_for_event won't actually schedule anything if there's already
@@ -1939,7 +1939,9 @@ class EventCreationHandler:
             if event.type == EventTypes.Message:
                 # We don't want to block sending messages on any presence code. This
                 # matters as sometimes presence code can take a while.
-                run_in_background(self._bump_active_time, requester.user)
+                run_as_background_process(
+                    "bump_presence_active_time", self._bump_active_time, requester.user
+                )
 
         async def _notify() -> None:
             try:

synapse/handlers/pagination.py

@@ -13,13 +13,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
-from typing import TYPE_CHECKING, Collection, Dict, List, Optional, Set
+from typing import TYPE_CHECKING, Dict, List, Optional, Set
 
 import attr
 
 from twisted.python.failure import Failure
 
-from synapse.api.constants import EventTypes, Membership
+from synapse.api.constants import Direction, EventTypes, Membership
 from synapse.api.errors import SynapseError
 from synapse.api.filtering import Filter
 from synapse.events.utils import SerializeEventConfig
@@ -28,7 +28,7 @@ from synapse.logging.opentracing import trace
 from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.rest.admin._base import assert_user_is_admin
 from synapse.streams.config import PaginationConfig
-from synapse.types import JsonDict, Requester, StreamKeyType
+from synapse.types import JsonDict, Requester, StrCollection, StreamKeyType
 from synapse.types.state import StateFilter
 from synapse.util.async_helpers import ReadWriteLock
 from synapse.util.stringutils import random_string
@@ -391,7 +391,7 @@ class PaginationHandler:
         """
         return self._delete_by_id.get(delete_id)
 
-    def get_delete_ids_by_room(self, room_id: str) -> Optional[Collection[str]]:
+    def get_delete_ids_by_room(self, room_id: str) -> Optional[StrCollection]:
         """Get all active delete ids by room
 
         Args:
@@ -448,7 +448,7 @@ class PaginationHandler:
 
         if pagin_config.from_token:
             from_token = pagin_config.from_token
-        elif pagin_config.direction == "f":
+        elif pagin_config.direction == Direction.FORWARDS:
             from_token = (
                 await self.hs.get_event_sources().get_start_token_for_pagination(
                     room_id
@@ -476,7 +476,7 @@ class PaginationHandler:
                     room_id, requester, allow_departed_users=True
                 )
 
-            if pagin_config.direction == "b":
+            if pagin_config.direction == Direction.BACKWARDS:
                 # if we're going backwards, we might need to backfill. This
                 # requires that we have a topo token.
                 if room_token.topological:

synapse/handlers/receipts.py

@@ -315,5 +315,5 @@ class ReceiptEventSource(EventSource[int, JsonDict]):
 
         return events, to_key
 
-    def get_current_key(self, direction: str = "f") -> int:
+    def get_current_key(self) -> int:
         return self.store.get_max_receipt_stream_id()

synapse/handlers/relations.py

@@ -17,7 +17,7 @@ from typing import TYPE_CHECKING, Collection, Dict, FrozenSet, Iterable, List, O
 
 import attr
 
-from synapse.api.constants import EventTypes, RelationTypes
+from synapse.api.constants import Direction, EventTypes, RelationTypes
 from synapse.api.errors import SynapseError
 from synapse.events import EventBase, relation_from_event
 from synapse.logging.context import make_deferred_yieldable, run_in_background
@@ -413,7 +413,11 @@ class RelationsHandler:
 
                 # Attempt to find another event to use as the latest event.
                 potential_events, _ = await self._main_store.get_relations_for_event(
-                    event_id, event, room_id, RelationTypes.THREAD, direction="f"
+                    event_id,
+                    event,
+                    room_id,
+                    RelationTypes.THREAD,
+                    direction=Direction.FORWARDS,
                 )
 
                 # Filter out ignored users.

synapse/handlers/room.py

@@ -20,22 +20,14 @@ import random
 import string
 from collections import OrderedDict
 from http import HTTPStatus
-from typing import (
-    TYPE_CHECKING,
-    Any,
-    Awaitable,
-    Collection,
-    Dict,
-    List,
-    Optional,
-    Tuple,
-)
+from typing import TYPE_CHECKING, Any, Awaitable, Dict, List, Optional, Tuple
 
 import attr
 from typing_extensions import TypedDict
 
 import synapse.events.snapshot
 from synapse.api.constants import (
+    Direction,
     EventContentFields,
     EventTypes,
     GuestAccess,
@@ -72,6 +64,7 @@ from synapse.types import (
     RoomID,
     RoomStreamToken,
     StateMap,
+    StrCollection,
     StreamKeyType,
     StreamToken,
     UserID,
@@ -1495,7 +1488,7 @@ class TimestampLookupHandler:
         requester: Requester,
         room_id: str,
         timestamp: int,
-        direction: str,
+        direction: Direction,
     ) -> Tuple[str, int]:
         """Find the closest event to the given timestamp in the given direction.
         If we can't find an event locally or the event we have locally is next to a gap,
@@ -1506,7 +1499,7 @@ class TimestampLookupHandler:
             room_id: Room to fetch the event from
             timestamp: The point in time (inclusive) we should navigate from in
                 the given direction to find the closest event.
-            direction: ["f"|"b"] to indicate whether we should navigate forward
+            direction: indicates whether we should navigate forward
                 or backward from the given timestamp to find the closest event.
 
         Returns:
@@ -1541,13 +1534,13 @@ class TimestampLookupHandler:
                 local_event_id, allow_none=False, allow_rejected=False
             )
 
-            if direction == "f":
+            if direction == Direction.FORWARDS:
                 # We only need to check for a backward gap if we're looking forwards
                 # to ensure there is nothing in between.
                 is_event_next_to_backward_gap = (
                     await self.store.is_event_next_to_backward_gap(local_event)
                 )
-            elif direction == "b":
+            elif direction == Direction.BACKWARDS:
                 # We only need to check for a forward gap if we're looking backwards
                 # to ensure there is nothing in between
                 is_event_next_to_forward_gap = (
@@ -1644,7 +1637,7 @@ class RoomEventSource(EventSource[RoomStreamToken, EventBase]):
         user: UserID,
         from_key: RoomStreamToken,
         limit: int,
-        room_ids: Collection[str],
+        room_ids: StrCollection,
         is_guest: bool,
         explicit_room_id: Optional[str] = None,
     ) -> Tuple[List[EventBase], RoomStreamToken]:

synapse/handlers/room_summary.py

@@ -36,7 +36,7 @@ from synapse.api.errors import (
 )
 from synapse.api.ratelimiting import Ratelimiter
 from synapse.events import EventBase
-from synapse.types import JsonDict, Requester
+from synapse.types import JsonDict, Requester, StrCollection
 from synapse.util.caches.response_cache import ResponseCache
 
 if TYPE_CHECKING:
@@ -870,7 +870,7 @@ class _RoomQueueEntry:
     # The room ID of this entry.
     room_id: str
     # The server to query if the room is not known locally.
-    via: Sequence[str]
+    via: StrCollection
     # The minimum number of hops necessary to get to this room (compared to the
     # originally requested room).
     depth: int = 0

synapse/handlers/search.py

@@ -14,7 +14,7 @@
 
 import itertools
 import logging
-from typing import TYPE_CHECKING, Collection, Dict, Iterable, List, Optional, Set, Tuple
+from typing import TYPE_CHECKING, Dict, Iterable, List, Optional, Set, Tuple
 
 import attr
 from unpaddedbase64 import decode_base64, encode_base64
@@ -23,7 +23,7 @@ from synapse.api.constants import EventTypes, Membership
 from synapse.api.errors import NotFoundError, SynapseError
 from synapse.api.filtering import Filter
 from synapse.events import EventBase
-from synapse.types import JsonDict, StreamKeyType, UserID
+from synapse.types import JsonDict, StrCollection, StreamKeyType, UserID
 from synapse.types.state import StateFilter
 from synapse.visibility import filter_events_for_client
 
@@ -418,7 +418,7 @@ class SearchHandler:
     async def _search_by_rank(
         self,
         user: UserID,
-        room_ids: Collection[str],
+        room_ids: StrCollection,
         search_term: str,
         keys: Iterable[str],
         search_filter: Filter,
@@ -491,7 +491,7 @@ class SearchHandler:
     async def _search_by_recent(
         self,
         user: UserID,
-        room_ids: Collection[str],
+        room_ids: StrCollection,
         search_term: str,
         keys: Iterable[str],
         search_filter: Filter,

synapse/handlers/sso.py

@@ -20,7 +20,6 @@ from typing import (
     Any,
     Awaitable,
     Callable,
-    Collection,
     Dict,
     Iterable,
     List,
@@ -47,6 +46,7 @@ from synapse.http.server import respond_with_html, respond_with_redirect
 from synapse.http.site import SynapseRequest
 from synapse.types import (
     JsonDict,
+    StrCollection,
     UserID,
     contains_invalid_mxid_characters,
     create_requester,
@@ -141,7 +141,8 @@ class UserAttributes:
     confirm_localpart: bool = False
     display_name: Optional[str] = None
     picture: Optional[str] = None
-    emails: Collection[str] = attr.Factory(list)
+    # mypy thinks these are incompatible for some reason.
+    emails: StrCollection = attr.Factory(list)  # type: ignore[assignment]
 
 
 @attr.s(slots=True, auto_attribs=True)
@@ -159,7 +160,7 @@ class UsernameMappingSession:
 
     # attributes returned by the ID mapper
     display_name: Optional[str]
-    emails: Collection[str]
+    emails: StrCollection
 
     # An optional dictionary of extra attributes to be provided to the client in the
     # login response.
@@ -174,7 +175,7 @@ class UsernameMappingSession:
     # choices made by the user
     chosen_localpart: Optional[str] = None
     use_display_name: bool = True
-    emails_to_use: Collection[str] = ()
+    emails_to_use: StrCollection = ()
     terms_accepted_version: Optional[str] = None
 
 

synapse/handlers/sync.py

@@ -17,7 +17,6 @@ from typing import (
     TYPE_CHECKING,
     AbstractSet,
     Any,
-    Collection,
     Dict,
     FrozenSet,
     List,
@@ -62,6 +61,7 @@ from synapse.types import (
     Requester,
     RoomStreamToken,
     StateMap,
+    StrCollection,
     StreamKeyType,
     StreamToken,
     UserID,
@@ -1179,7 +1179,7 @@ class SyncHandler:
     async def _find_missing_partial_state_memberships(
         self,
         room_id: str,
-        members_to_fetch: Collection[str],
+        members_to_fetch: StrCollection,
         events_with_membership_auth: Mapping[str, EventBase],
         found_state_ids: StateMap[str],
     ) -> StateMap[str]:
@@ -1383,16 +1383,21 @@ class SyncHandler:
         if not sync_config.filter_collection.lazy_load_members():
             # Non-lazy syncs should never include partially stated rooms.
             # Exclude all partially stated rooms from this sync.
-            for room_id in mutable_joined_room_ids:
-                if await self.store.is_partial_state_room(room_id):
-                    mutable_rooms_to_exclude.add(room_id)
+            results = await self.store.is_partial_state_room_batched(
+                mutable_joined_room_ids
+            )
+            mutable_rooms_to_exclude.update(
+                room_id
+                for room_id, is_partial_state in results.items()
+                if is_partial_state
+            )
 
         # Incremental eager syncs should additionally include rooms that
         # - we are joined to
         # - are full-stated
         # - became fully-stated at some point during the sync period
         #   (These rooms will have been omitted during a previous eager sync.)
-        forced_newly_joined_room_ids = set()
+        forced_newly_joined_room_ids: Set[str] = set()
         if since_token and not sync_config.filter_collection.lazy_load_members():
             un_partial_stated_rooms = (
                 await self.store.get_un_partial_stated_rooms_between(
@@ -1401,9 +1406,14 @@ class SyncHandler:
                     mutable_joined_room_ids,
                 )
             )
-            for room_id in un_partial_stated_rooms:
-                if not await self.store.is_partial_state_room(room_id):
-                    forced_newly_joined_room_ids.add(room_id)
+            results = await self.store.is_partial_state_room_batched(
+                un_partial_stated_rooms
+            )
+            forced_newly_joined_room_ids.update(
+                room_id
+                for room_id, is_partial_state in results.items()
+                if not is_partial_state
+            )
 
         # Now we have our list of joined room IDs, exclude as configured and freeze
         joined_room_ids = frozenset(
@@ -1438,39 +1448,67 @@ class SyncHandler:
             sync_result_builder
         )
 
-        logger.debug("Fetching room data")
-
-        (
-            newly_joined_rooms,
-            newly_joined_or_invited_or_knocked_users,
-            newly_left_rooms,
-            newly_left_users,
-        ) = await self._generate_sync_entry_for_rooms(
-            sync_result_builder, account_data_by_room
+        # Presence data is included if the server has it enabled and not filtered out.
+        include_presence_data = bool(
+            self.hs_config.server.use_presence
+            and not sync_config.filter_collection.blocks_all_presence()
         )
+        # Device list updates are sent if a since token is provided.
+        include_device_list_updates = bool(since_token and since_token.device_list_key)
+
+        # If we do not care about the rooms or things which depend on the room
+        # data (namely presence and device list updates), then we can skip
+        # this process completely.
+        device_lists = DeviceListUpdates()
+        if (
+            not sync_result_builder.sync_config.filter_collection.blocks_all_rooms()
+            or include_presence_data
+            or include_device_list_updates
+        ):
+            logger.debug("Fetching room data")
 
-        block_all_presence_data = (
-            since_token is None and sync_config.filter_collection.blocks_all_presence()
-        )
-        if self.hs_config.server.use_presence and not block_all_presence_data:
-            logger.debug("Fetching presence data")
-            await self._generate_sync_entry_for_presence(
-                sync_result_builder,
+            # Note that _generate_sync_entry_for_rooms sets sync_result_builder.joined, which
+            # is used in calculate_user_changes below.
+            (
                 newly_joined_rooms,
-                newly_joined_or_invited_or_knocked_users,
+                newly_left_rooms,
+            ) = await self._generate_sync_entry_for_rooms(
+                sync_result_builder, account_data_by_room
             )
 
+            # Work out which users have joined or left rooms we're in. We use this
+            # to build the presence and device_list parts of the sync response in
+            # `_generate_sync_entry_for_presence` and
+            # `_generate_sync_entry_for_device_list` respectively.
+            if include_presence_data or include_device_list_updates:
+                # This uses the sync_result_builder.joined which is set in
+                # `_generate_sync_entry_for_rooms`, if that didn't find any joined
+                # rooms for some reason it is a no-op.
+                (
+                    newly_joined_or_invited_or_knocked_users,
+                    newly_left_users,
+                ) = sync_result_builder.calculate_user_changes()
+
+                if include_presence_data:
+                    logger.debug("Fetching presence data")
+                    await self._generate_sync_entry_for_presence(
+                        sync_result_builder,
+                        newly_joined_rooms,
+                        newly_joined_or_invited_or_knocked_users,
+                    )
+
+                if include_device_list_updates:
+                    device_lists = await self._generate_sync_entry_for_device_list(
+                        sync_result_builder,
+                        newly_joined_rooms=newly_joined_rooms,
+                        newly_joined_or_invited_or_knocked_users=newly_joined_or_invited_or_knocked_users,
+                        newly_left_rooms=newly_left_rooms,
+                        newly_left_users=newly_left_users,
+                    )
+
         logger.debug("Fetching to-device data")
         await self._generate_sync_entry_for_to_device(sync_result_builder)
 
-        device_lists = await self._generate_sync_entry_for_device_list(
-            sync_result_builder,
-            newly_joined_rooms=newly_joined_rooms,
-            newly_joined_or_invited_or_knocked_users=newly_joined_or_invited_or_knocked_users,
-            newly_left_rooms=newly_left_rooms,
-            newly_left_users=newly_left_users,
-        )
-
         logger.debug("Fetching OTK data")
         device_id = sync_config.device_id
         one_time_keys_count: JsonDict = {}
@@ -1539,6 +1577,7 @@ class SyncHandler:
 
         user_id = sync_result_builder.sync_config.user.to_string()
         since_token = sync_result_builder.since_token
+        assert since_token is not None
 
         # Take a copy since these fields will be mutated later.
         newly_joined_or_invited_or_knocked_users = set(
@@ -1546,92 +1585,85 @@ class SyncHandler:
         )
         newly_left_users = set(newly_left_users)
 
-        if since_token and since_token.device_list_key:
-            # We want to figure out what user IDs the client should refetch
-            # device keys for, and which users we aren't going to track changes
-            # for anymore.
-            #
-            # For the first step we check:
-            #   a. if any users we share a room with have updated their devices,
-            #      and
-            #   b. we also check if we've joined any new rooms, or if a user has
-            #      joined a room we're in.
-            #
-            # For the second step we just find any users we no longer share a
-            # room with by looking at all users that have left a room plus users
-            # that were in a room we've left.
+        # We want to figure out what user IDs the client should refetch
+        # device keys for, and which users we aren't going to track changes
+        # for anymore.
+        #
+        # For the first step we check:
+        #   a. if any users we share a room with have updated their devices,
+        #      and
+        #   b. we also check if we've joined any new rooms, or if a user has
+        #      joined a room we're in.
+        #
+        # For the second step we just find any users we no longer share a
+        # room with by looking at all users that have left a room plus users
+        # that were in a room we've left.
 
-            users_that_have_changed = set()
+        users_that_have_changed = set()
 
-            joined_rooms = sync_result_builder.joined_room_ids
+        joined_rooms = sync_result_builder.joined_room_ids
 
-            # Step 1a, check for changes in devices of users we share a room
-            # with
-            #
-            # We do this in two different ways depending on what we have cached.
-            # If we already have a list of all the user that have changed since
-            # the last sync then it's likely more efficient to compare the rooms
-            # they're in with the rooms the syncing user is in.
-            #
-            # If we don't have that info cached then we get all the users that
-            # share a room with our user and check if those users have changed.
-            cache_result = self.store.get_cached_device_list_changes(
-                since_token.device_list_key
-            )
-            if cache_result.hit:
-                changed_users = cache_result.entities
-
-                result = await self.store.get_rooms_for_users(changed_users)
-
-                for changed_user_id, entries in result.items():
-                    # Check if the changed user shares any rooms with the user,
-                    # or if the changed user is the syncing user (as we always
-                    # want to include device list updates of their own devices).
-                    if user_id == changed_user_id or any(
-                        rid in joined_rooms for rid in entries
-                    ):
-                        users_that_have_changed.add(changed_user_id)
-            else:
-                users_that_have_changed = (
-                    await self._device_handler.get_device_changes_in_shared_rooms(
-                        user_id,
-                        sync_result_builder.joined_room_ids,
-                        from_token=since_token,
-                    )
-                )
-
-            # Step 1b, check for newly joined rooms
-            for room_id in newly_joined_rooms:
-                joined_users = await self.store.get_users_in_room(room_id)
-                newly_joined_or_invited_or_knocked_users.update(joined_users)
+        # Step 1a, check for changes in devices of users we share a room
+        # with
+        #
+        # We do this in two different ways depending on what we have cached.
+        # If we already have a list of all the user that have changed since
+        # the last sync then it's likely more efficient to compare the rooms
+        # they're in with the rooms the syncing user is in.
+        #
+        # If we don't have that info cached then we get all the users that
+        # share a room with our user and check if those users have changed.
+        cache_result = self.store.get_cached_device_list_changes(
+            since_token.device_list_key
+        )
+        if cache_result.hit:
+            changed_users = cache_result.entities
 
-            # TODO: Check that these users are actually new, i.e. either they
-            # weren't in the previous sync *or* they left and rejoined.
-            users_that_have_changed.update(newly_joined_or_invited_or_knocked_users)
+            result = await self.store.get_rooms_for_users(changed_users)
 
-            user_signatures_changed = (
-                await self.store.get_users_whose_signatures_changed(
-                    user_id, since_token.device_list_key
+            for changed_user_id, entries in result.items():
+                # Check if the changed user shares any rooms with the user,
+                # or if the changed user is the syncing user (as we always
+                # want to include device list updates of their own devices).
+                if user_id == changed_user_id or any(
+                    rid in joined_rooms for rid in entries
+                ):
+                    users_that_have_changed.add(changed_user_id)
+        else:
+            users_that_have_changed = (
+                await self._device_handler.get_device_changes_in_shared_rooms(
+                    user_id,
+                    sync_result_builder.joined_room_ids,
+                    from_token=since_token,
                 )
             )
-            users_that_have_changed.update(user_signatures_changed)
 
-            # Now find users that we no longer track
-            for room_id in newly_left_rooms:
-                left_users = await self.store.get_users_in_room(room_id)
-                newly_left_users.update(left_users)
+        # Step 1b, check for newly joined rooms
+        for room_id in newly_joined_rooms:
+            joined_users = await self.store.get_users_in_room(room_id)
+            newly_joined_or_invited_or_knocked_users.update(joined_users)
 
-            # Remove any users that we still share a room with.
-            left_users_rooms = await self.store.get_rooms_for_users(newly_left_users)
-            for user_id, entries in left_users_rooms.items():
-                if any(rid in joined_rooms for rid in entries):
-                    newly_left_users.discard(user_id)
+        # TODO: Check that these users are actually new, i.e. either they
+        # weren't in the previous sync *or* they left and rejoined.
+        users_that_have_changed.update(newly_joined_or_invited_or_knocked_users)
 
-            return DeviceListUpdates(
-                changed=users_that_have_changed, left=newly_left_users
-            )
-        else:
-            return DeviceListUpdates()
+        user_signatures_changed = await self.store.get_users_whose_signatures_changed(
+            user_id, since_token.device_list_key
+        )
+        users_that_have_changed.update(user_signatures_changed)
+
+        # Now find users that we no longer track
+        for room_id in newly_left_rooms:
+            left_users = await self.store.get_users_in_room(room_id)
+            newly_left_users.update(left_users)
+
+        # Remove any users that we still share a room with.
+        left_users_rooms = await self.store.get_rooms_for_users(newly_left_users)
+        for user_id, entries in left_users_rooms.items():
+            if any(rid in joined_rooms for rid in entries):
+                newly_left_users.discard(user_id)
+
+        return DeviceListUpdates(changed=users_that_have_changed, left=newly_left_users)
 
     @trace
     async def _generate_sync_entry_for_to_device(
@@ -1708,6 +1740,7 @@ class SyncHandler:
         since_token = sync_result_builder.since_token
 
         if since_token and not sync_result_builder.full_state:
+            # TODO Do not fetch room account data if it will be unused.
             (
                 global_account_data,
                 account_data_by_room,
@@ -1724,6 +1757,7 @@ class SyncHandler:
                     sync_config.user
                 )
         else:
+            # TODO Do not fetch room account data if it will be unused.
             (
                 global_account_data,
                 account_data_by_room,
@@ -1806,7 +1840,7 @@ class SyncHandler:
         self,
         sync_result_builder: "SyncResultBuilder",
         account_data_by_room: Dict[str, Dict[str, JsonDict]],
-    ) -> Tuple[AbstractSet[str], AbstractSet[str], AbstractSet[str], AbstractSet[str]]:
+    ) -> Tuple[AbstractSet[str], AbstractSet[str]]:
         """Generates the rooms portion of the sync response. Populates the
         `sync_result_builder` with the result.
 
@@ -1819,26 +1853,21 @@ class SyncHandler:
             account_data_by_room: Dictionary of per room account data
 
         Returns:
-            Returns a 4-tuple describing rooms the user has joined or left, and users who've
-            joined or left rooms any rooms the user is in. This gets used later in
-            `_generate_sync_entry_for_device_list`.
+            Returns a 2-tuple describing rooms the user has joined or left.
 
             Its entries are:
             - newly_joined_rooms
-            - newly_joined_or_invited_or_knocked_users
             - newly_left_rooms
-            - newly_left_users
         """
 
         since_token = sync_result_builder.since_token
+        user_id = sync_result_builder.sync_config.user.to_string()
 
         # 1. Start by fetching all ephemeral events in rooms we've joined (if required).
-        user_id = sync_result_builder.sync_config.user.to_string()
         block_all_room_ephemeral = (
-            since_token is None
-            and sync_result_builder.sync_config.filter_collection.blocks_all_room_ephemeral()
+            sync_result_builder.sync_config.filter_collection.blocks_all_rooms()
+            or sync_result_builder.sync_config.filter_collection.blocks_all_room_ephemeral()
         )
-
         if block_all_room_ephemeral:
             ephemeral_by_room: Dict[str, List[JsonDict]] = {}
         else:
@@ -1861,7 +1890,7 @@ class SyncHandler:
                     )
                     if not tags_by_room:
                         logger.debug("no-oping sync")
-                        return set(), set(), set(), set()
+                        return set(), set()
 
         # 3. Work out which rooms need reporting in the sync response.
         ignored_users = await self.store.ignored_users(user_id)
@@ -1890,6 +1919,7 @@ class SyncHandler:
         # joined or archived).
         async def handle_room_entries(room_entry: "RoomSyncResultBuilder") -> None:
             logger.debug("Generating room entry for %s", room_entry.room_id)
+            # Note that this mutates sync_result_builder.{joined,archived}.
             await self._generate_room_entry(
                 sync_result_builder,
                 room_entry,
@@ -1906,20 +1936,7 @@ class SyncHandler:
         sync_result_builder.invited.extend(invited)
         sync_result_builder.knocked.extend(knocked)
 
-        # 5. Work out which users have joined or left rooms we're in. We use this
-        # to build the device_list part of the sync response in
-        # `_generate_sync_entry_for_device_list`.
-        (
-            newly_joined_or_invited_or_knocked_users,
-            newly_left_users,
-        ) = sync_result_builder.calculate_user_changes()
-
-        return (
-            set(newly_joined_rooms),
-            newly_joined_or_invited_or_knocked_users,
-            set(newly_left_rooms),
-            newly_left_users,
-        )
+        return set(newly_joined_rooms), set(newly_left_rooms)
 
     async def _have_rooms_changed(
         self, sync_result_builder: "SyncResultBuilder"

synapse/http/servlet.py

@@ -13,6 +13,7 @@
 # limitations under the License.
 
 """ This module contains base REST classes for constructing REST servlets. """
+import enum
 import logging
 from http import HTTPStatus
 from typing import (
@@ -362,6 +363,7 @@ def parse_string(
     request: Request,
     name: str,
     *,
+    default: Optional[str] = None,
     required: bool = False,
     allowed_values: Optional[Iterable[str]] = None,
     encoding: str = "ascii",
@@ -413,6 +415,74 @@ def parse_string(
     )
 
 
+EnumT = TypeVar("EnumT", bound=enum.Enum)
+
+
+@overload
+def parse_enum(
+    request: Request,
+    name: str,
+    E: Type[EnumT],
+    default: EnumT,
+) -> EnumT:
+    ...
+
+
+@overload
+def parse_enum(
+    request: Request,
+    name: str,
+    E: Type[EnumT],
+    *,
+    required: Literal[True],
+) -> EnumT:
+    ...
+
+
+def parse_enum(
+    request: Request,
+    name: str,
+    E: Type[EnumT],
+    default: Optional[EnumT] = None,
+    required: bool = False,
+) -> Optional[EnumT]:
+    """
+    Parse an enum parameter from the request query string.
+
+    Note that the enum *must only have string values*.
+
+    Args:
+        request: the twisted HTTP request.
+        name: the name of the query parameter.
+        E: the enum which represents valid values
+        default: enum value to use if the parameter is absent, defaults to None.
+        required: whether to raise a 400 SynapseError if the
+            parameter is absent, defaults to False.
+
+    Returns:
+        An enum value.
+
+    Raises:
+        SynapseError if the parameter is absent and required, or if the
+            parameter is present, must be one of a list of allowed values and
+            is not one of those allowed values.
+    """
+    # Assert the enum values are strings.
+    assert all(
+        isinstance(e.value, str) for e in E
+    ), "parse_enum only works with string values"
+    str_value = parse_string(
+        request,
+        name,
+        default=default.value if default is not None else None,
+        required=required,
+        allowed_values=[e.value for e in E],
+    )
+    if str_value is None:
+        return None
+    return E(str_value)
+
+
 def _parse_string_value(
     value: bytes,
     allowed_values: Optional[Iterable[str]],