Merge remote-tracking branch 'upstream/release-v1.81'

This change fixes a rare bug where initial /syncs would fail with a
`KeyError` under the following circumstances:
 1. A user fast joins a remote room.
 2. The user is kicked from the room before the room's full state has
    been synced.
 3. A second local user fast joins the room.
 4. Events are backfilled into the room with a higher topological
    ordering than the original user's leave. They are assigned a
    negative stream ordering. It's not clear how backfill happened here,
    since it is expected to be equivalent to syncing the full state.
 5. The second local user leaves the room before the room's full state
    has been synced. The homeserver does not complete the sync.
 6. The original user performs an initial /sync with lazy_load_members
    enabled.
     * Because they were kicked from the room, the room is included in
       the /sync response even though the include_leave option is not
       specified.
     * To populate the room's timeline, `_load_filtered_recents` /
       `get_recent_events_for_room` fetches events with a lower stream
       ordering than the leave event and picks the ones with the highest
       topological orderings (which are most recent). This captures the
       backfilled events after the leave, since they have a negative
       stream ordering. These events are filtered out of the timeline,
       since the user was not in the room at the time and cannot view
       them. The sync code ends up with an empty timeline for the room
       that notably does not include the user's leave event.
       This seems buggy, but at least we don't disclose events the user
       isn't allowed to see.
     * Normally, `compute_state_delta` would fetch the state at the
       start and end of the room's timeline to generate the sync
       response. Since the timeline is empty, it fetches the state at
       `min(now, last event in the room)`, which corresponds with the
       second user's leave. The state during the entirety of the second
       user's membership does not include the membership for the first
       user because of partial state.
       This part is also questionable, since we are fetching state from
       outside the bounds of the user's membership.
     * `compute_state_delta` then tries and fails to find the user's
       membership in the auth events of timeline events. Because there
       is no timeline event whose auth events are expected to contain
       the user's membership, a `KeyError` is raised.

Also contains a drive-by fix for a separate unlikely race condition.

Signed-off-by: Sean Quah <seanq@matrix.org>

.ci/scripts/prepare_old_deps.sh

@@ -35,9 +35,9 @@ sed -i \
 # compatible (as far the package metadata declares, anyway); pip's package resolver
 # is more lax.
 #
-# Rather than `poetry install --no-dev`, we drop all dev dependencies from the
-# toml file. This means we don't have to ensure compatibility between old deps and
-# dev tools.
+# Rather than `poetry install --no-dev`, we drop all dev dependencies and the dev-docs
+# group from the toml file. This means we don't have to ensure compatibility between
+# old deps and dev tools.
 
 pip install toml wheel
 
@@ -47,6 +47,7 @@ with open('pyproject.toml', 'r') as f:
     data = toml.loads(f.read())
 
 del data['tool']['poetry']['dev-dependencies']
+del data['tool']['poetry']['group']['dev-docs']
 
 with open('pyproject.toml', 'w') as f:
     toml.dump(data, f)

.dockerignore

@@ -8,6 +8,7 @@
 !README.rst
 !pyproject.toml
 !poetry.lock
+!requirements.txt
 !Cargo.lock
 !Cargo.toml
 !build_rust.py

.github/workflows/docker.yml

@@ -10,6 +10,7 @@ on:
 
 permissions:
   contents: read
+  packages: write
 
 jobs:
   build:
@@ -34,11 +35,20 @@ jobs:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
+      - name: Log in to GHCR
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Calculate docker image tag
         id: set-tag
         uses: docker/metadata-action@master
         with:
-          images: matrixdotorg/synapse
+          images: |
+            docker.io/matrixdotorg/synapse
+            ghcr.io/matrix-org/synapse
           flavor: |
             latest=false
           tags: |

.github/workflows/docs.yaml

@@ -13,25 +13,10 @@ on:
   workflow_dispatch:
 
 jobs:
-  pages:
-    name: GitHub Pages
+  pre:
+    name: Calculate variables for GitHub Pages deployment
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup mdbook
-        uses: peaceiris/actions-mdbook@adeb05db28a0c0004681db83893d56c0388ea9ea # v1.2.0
-        with:
-          mdbook-version: '0.4.17'
-
-      - name: Build the documentation
-        # mdbook will only create an index.html if we're including docs/README.md in SUMMARY.md.
-        # However, we're using docs/README.md for other purposes and need to pick a new page
-        # as the default. Let's opt for the welcome page instead.
-        run: |
-          mdbook build
-          cp book/welcome_and_overview.html book/index.html
-
       # Figure out the target directory.
       #
       # The target directory depends on the name of the branch
@@ -55,11 +40,65 @@ jobs:
 
           # finally, set the 'branch-version' var.
           echo "branch-version=$branch" >> "$GITHUB_OUTPUT"
-          
+    outputs:
+      branch-version: ${{ steps.vars.outputs.branch-version }}
+
+################################################################################
+  pages-docs:
+    name: GitHub Pages
+    runs-on: ubuntu-latest
+    needs:
+      - pre
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup mdbook
+        uses: peaceiris/actions-mdbook@adeb05db28a0c0004681db83893d56c0388ea9ea # v1.2.0
+        with:
+          mdbook-version: '0.4.17'
+
+      - name: Build the documentation
+        # mdbook will only create an index.html if we're including docs/README.md in SUMMARY.md.
+        # However, we're using docs/README.md for other purposes and need to pick a new page
+        # as the default. Let's opt for the welcome page instead.
+        run: |
+          mdbook build
+          cp book/welcome_and_overview.html book/index.html
+
       # Deploy to the target directory.
       - name: Deploy to gh pages
-        uses: peaceiris/actions-gh-pages@bd8c6b06eba6b3d25d72b7a1767993c0aeee42e7 # v3.9.2
+        uses: peaceiris/actions-gh-pages@373f7f263a76c20808c831209c920827a82a2847 # v3.9.3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./book
-          destination_dir: ./${{ steps.vars.outputs.branch-version }}
+          destination_dir: ./${{ needs.pre.outputs.branch-version }}
+
+################################################################################
+  pages-devdocs:
+    name: GitHub Pages (developer docs)
+    runs-on: ubuntu-latest
+    needs:
+      - pre
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: "Set up Sphinx"
+        uses: matrix-org/setup-python-poetry@v1
+        with:
+          python-version: "3.x"
+          poetry-version: "1.3.2"
+          groups: "dev-docs"
+          extras: ""
+
+      - name: Build the documentation
+        run: |
+          cd dev-docs
+          poetry run make html
+
+      # Deploy to the target directory.
+      - name: Deploy to gh pages
+        uses: peaceiris/actions-gh-pages@373f7f263a76c20808c831209c920827a82a2847 # v3.9.3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./dev-docs/_build/html
+          destination_dir: ./dev-docs/${{ needs.pre.outputs.branch-version }}

.github/workflows/latest_deps.yml

@@ -27,7 +27,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -61,7 +61,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -134,7 +134,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2

.github/workflows/release-artifacts.yml

@@ -4,13 +4,15 @@ name: Build release artifacts
 
 on:
   # we build on PRs and develop to (hopefully) get early warning
-  # of things breaking (but only build one set of debs)
+  # of things breaking (but only build one set of debs). PRs skip
+  # building wheels on macOS & ARM.
   pull_request:
   push:
     branches: ["develop", "release-*"]
 
     # we do the full build on tags.
     tags: ["v*"]
+  merge_group:
   workflow_dispatch:
 
 concurrency:

.github/workflows/tests.yml

@@ -4,6 +4,7 @@ on:
   push:
     branches: ["develop", "release-*"]
   pull_request:
+  merge_group:
   workflow_dispatch:
 
 concurrency:
@@ -33,6 +34,14 @@ jobs:
     runs-on: ubuntu-latest
     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@fc3253060d0c959bea12a59f10f8391454a0b02d
+        with:
+            toolchain: 1.58.1
+      - uses: Swatinem/rust-cache@v2
       - uses: matrix-org/setup-python-poetry@v1
         with:
           python-version: "3.x"
@@ -94,6 +103,14 @@ jobs:
       - uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
+      - 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@fc3253060d0c959bea12a59f10f8391454a0b02d
+        with:
+            toolchain: 1.58.1
+      - uses: Swatinem/rust-cache@v2
       - uses: matrix-org/setup-python-poetry@v1
         with:
           poetry-version: "1.3.2"
@@ -112,7 +129,7 @@ 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@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
             toolchain: 1.58.1
             components: clippy
@@ -134,7 +151,7 @@ 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@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
             toolchain: nightly-2022-12-01
             components: clippy
@@ -154,7 +171,7 @@ 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@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
           # We use nightly so that it correctly groups together imports
           toolchain: nightly-2022-12-01
@@ -222,7 +239,7 @@ 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@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -267,7 +284,7 @@ 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@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -388,7 +405,7 @@ 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@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -533,7 +550,7 @@ 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@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -564,7 +581,7 @@ 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@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -587,7 +604,7 @@ 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@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
             toolchain: nightly-2022-12-01
       - uses: Swatinem/rust-cache@v2

.github/workflows/twisted_trunk.yml

@@ -5,6 +5,13 @@ on:
     - cron: 0 8 * * *
 
   workflow_dispatch:
+    inputs:
+      twisted_ref:
+        description: Commit, branch or tag to checkout from upstream Twisted.
+        required: false
+        default: 'trunk'
+        type: string
+
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -18,7 +25,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -29,7 +36,7 @@ jobs:
           extras: "all"
       - run: |
           poetry remove twisted
-          poetry add --extras tls git+https://github.com/twisted/twisted.git#trunk
+          poetry add --extras tls git+https://github.com/twisted/twisted.git#${{ inputs.twisted_ref }}
           poetry install --no-interaction --extras "all test"
       - name: Remove warn_unused_ignores from mypy config
         run: sed '/warn_unused_ignores = True/d' -i mypy.ini
@@ -43,7 +50,7 @@ jobs:
       - run: sudo apt-get -qq install xmlsec1
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -82,7 +89,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@e12eda571dc9a5ee5d58eecf4738ec291c66f295
+        uses: dtolnay/rust-toolchain@fc3253060d0c959bea12a59f10f8391454a0b02d
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2

.gitignore

@@ -53,6 +53,7 @@ __pycache__/
 /coverage.*
 /dist/
 /docs/build/
+/dev-docs/_build/
 /htmlcov
 /pip-wheel-metadata/
 
@@ -61,7 +62,7 @@ book/
 
 # complement
 /complement-*
-/master.tar.gz
+/main.tar.gz
 
 # rust
 /target/

.gitlab-ci.yml

@@ -0,0 +1,19 @@
+image: docker:stable
+
+stages:
+- build
+
+build amd64:
+  stage: build
+  tags:
+  - amd64
+  only:
+  - master
+  before_script:
+  - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+  script:
+  - synversion=$(cat pyproject.toml | grep '^version =' | sed -E 's/^version = "(.+)"$/\1/')
+  - docker build --tag $CI_REGISTRY_IMAGE:latest --tag $CI_REGISTRY_IMAGE:$synversion .
+  - docker push $CI_REGISTRY_IMAGE:latest
+  - docker push $CI_REGISTRY_IMAGE:$synversion
+  - docker rmi $CI_REGISTRY_IMAGE:latest $CI_REGISTRY_IMAGE:$synversion

CHANGES.md

@@ -1,3 +1,175 @@
+Synapse 1.81.0rc1 (2023-04-04)
+==============================
+
+Synapse now attempts the versioned appservice paths before falling back to the
+[legacy paths](https://spec.matrix.org/v1.6/application-service-api/#legacy-routes).
+Usage of the legacy routes should be considered deprecated.
+
+Additionally, Synapse has supported sending the application service access token
+via [the `Authorization` header](https://spec.matrix.org/v1.6/application-service-api/#authorization)
+since v1.70.0. For backwards compatibility it is *also* sent as the `access_token`
+query parameter. This is insecure and should be considered deprecated.
+
+A future version of Synapse (v1.88.0 or later) will remove support for legacy
+application service routes and query parameter authorization.
+
+
+Features
+--------
+
+- Add the ability to enable/disable registrations when in the OIDC flow. ([\#14978](https://github.com/matrix-org/synapse/issues/14978))
+- Add a primitive helper script for listing worker endpoints. ([\#15243](https://github.com/matrix-org/synapse/issues/15243))
+- Experimental support for passing One Time Key and device key requests to application services ([MSC3983](https://github.com/matrix-org/matrix-spec-proposals/pull/3983) and [MSC3984](https://github.com/matrix-org/matrix-spec-proposals/pull/3984)). ([\#15314](https://github.com/matrix-org/synapse/issues/15314), [\#15321](https://github.com/matrix-org/synapse/issues/15321))
+- Allow loading `/password_policy` endpoint on workers. ([\#15331](https://github.com/matrix-org/synapse/issues/15331))
+- Add experimental support for Unix sockets. Contributed by Jason Little. ([\#15353](https://github.com/matrix-org/synapse/issues/15353))
+- Build Debian packages for Ubuntu 23.04 (Lunar Lobster). ([\#15381](https://github.com/matrix-org/synapse/issues/15381))
+
+
+Bugfixes
+--------
+
+- Fix a long-standing bug where edits of non-`m.room.message` events would not be correctly bundled. ([\#15295](https://github.com/matrix-org/synapse/issues/15295))
+- Fix a bug introduced in Synapse v1.55.0 which could delay remote homeservers being able to decrypt encrypted messages sent by local users. ([\#15297](https://github.com/matrix-org/synapse/issues/15297))
+- Add a check to [SQLite port_db script](https://matrix-org.github.io/synapse/latest/postgres.html#porting-from-sqlite)
+  to ensure that the sqlite database passed to the script exists before trying to port from it. ([\#15306](https://github.com/matrix-org/synapse/issues/15306))
+- Fix a bug introduced in Synapse 1.76.0 where responses from worker deployments could include an internal `_INT_STREAM_POS` key. ([\#15309](https://github.com/matrix-org/synapse/issues/15309))
+- Fix a long-standing bug that Synpase only used the [legacy appservice routes](https://spec.matrix.org/v1.6/application-service-api/#legacy-routes). ([\#15317](https://github.com/matrix-org/synapse/issues/15317))
+- Fix a long-standing bug preventing users from rejoining rooms after being banned and unbanned over federation. Contributed by Nico. ([\#15323](https://github.com/matrix-org/synapse/issues/15323))
+- Fix bug in worker mode where on a rolling restart of workers the "typing" worker would consume 100% CPU until it got restarted. ([\#15332](https://github.com/matrix-org/synapse/issues/15332))
+- Fix a long-standing bug where some to_device messages could be dropped when using workers. ([\#15349](https://github.com/matrix-org/synapse/issues/15349))
+- Fix a bug introduced in Synapse 1.70.0 where the background sync from a faster join could spin for hours when one of the events involved had been marked for backoff. ([\#15351](https://github.com/matrix-org/synapse/issues/15351))
+- Fix missing app variable in mail subject for password resets. Contributed by Cyberes. ([\#15352](https://github.com/matrix-org/synapse/issues/15352))
+- Fix a rare bug introduced in Synapse 1.66.0 where initial syncs would fail when the user had been kicked from a faster joined room that had not finished syncing. ([\#15383](https://github.com/matrix-org/synapse/issues/15383))
+
+
+Improved Documentation
+----------------------
+
+- Fix a typo in login requests ratelimit defaults. ([\#15341](https://github.com/matrix-org/synapse/issues/15341))
+- Add some clarification to the doc/comments regarding TCP replication. ([\#15354](https://github.com/matrix-org/synapse/issues/15354))
+- Note that Synapse 1.74 queued a rebuild of the user directory tables. ([\#15386](https://github.com/matrix-org/synapse/issues/15386))
+
+
+Internal Changes
+----------------
+
+- Use `immutabledict` instead of `frozendict`. ([\#15113](https://github.com/matrix-org/synapse/issues/15113))
+- Add developer documentation for the Federation Sender and add a documentation mechanism using Sphinx. ([\#15265](https://github.com/matrix-org/synapse/issues/15265), [\#15336](https://github.com/matrix-org/synapse/issues/15336))
+- Make the pushers rely on the `device_id` instead of the `access_token_id` for various operations. ([\#15280](https://github.com/matrix-org/synapse/issues/15280))
+- Bump sentry-sdk from 1.15.0 to 1.17.0. ([\#15285](https://github.com/matrix-org/synapse/issues/15285))
+- Allow running the Twisted trunk job against other branches. ([\#15302](https://github.com/matrix-org/synapse/issues/15302))
+- Remind the releaser to ask for changelog feedback in [#synapse-dev](https://matrix.to/#/#synapse-dev:matrix.org). ([\#15303](https://github.com/matrix-org/synapse/issues/15303))
+- Bump dtolnay/rust-toolchain from e12eda571dc9a5ee5d58eecf4738ec291c66f295 to fc3253060d0c959bea12a59f10f8391454a0b02d. ([\#15304](https://github.com/matrix-org/synapse/issues/15304))
+- Reject events with an invalid "mentions" property per [MSC3952](https://github.com/matrix-org/matrix-spec-proposals/pull/3952). ([\#15311](https://github.com/matrix-org/synapse/issues/15311))
+- As an optimisation, use `TRUNCATE` on Postgres when clearing the user directory tables. ([\#15316](https://github.com/matrix-org/synapse/issues/15316))
+- Fix `.gitignore` rule for the Complement source tarball downloaded automatically by `complement.sh`. ([\#15319](https://github.com/matrix-org/synapse/issues/15319))
+- Bump serde from 1.0.157 to 1.0.158. ([\#15324](https://github.com/matrix-org/synapse/issues/15324))
+- Bump regex from 1.7.1 to 1.7.3. ([\#15325](https://github.com/matrix-org/synapse/issues/15325))
+- Bump types-pyopenssl from 23.0.0.4 to 23.1.0.0. ([\#15326](https://github.com/matrix-org/synapse/issues/15326))
+- Bump furo from 2022.12.7 to 2023.3.23. ([\#15327](https://github.com/matrix-org/synapse/issues/15327))
+- Bump ruff from 0.0.252 to 0.0.259. ([\#15328](https://github.com/matrix-org/synapse/issues/15328))
+- Bump cryptography from 40.0.0 to 40.0.1. ([\#15329](https://github.com/matrix-org/synapse/issues/15329))
+- Bump mypy-zope from 0.9.0 to 0.9.1. ([\#15330](https://github.com/matrix-org/synapse/issues/15330))
+- Speed up unit tests when using SQLite3. ([\#15334](https://github.com/matrix-org/synapse/issues/15334))
+- Speed up pydantic CI job. ([\#15339](https://github.com/matrix-org/synapse/issues/15339))
+- Speed up sample config CI job. ([\#15340](https://github.com/matrix-org/synapse/issues/15340))
+- Fix copyright year in SSO footer template. ([\#15358](https://github.com/matrix-org/synapse/issues/15358))
+- Bump peaceiris/actions-gh-pages from 3.9.2 to 3.9.3. ([\#15369](https://github.com/matrix-org/synapse/issues/15369))
+- Bump serde from 1.0.158 to 1.0.159. ([\#15370](https://github.com/matrix-org/synapse/issues/15370))
+- Bump serde_json from 1.0.94 to 1.0.95. ([\#15371](https://github.com/matrix-org/synapse/issues/15371))
+- Speed up membership queries for users with forgotten rooms. ([\#15385](https://github.com/matrix-org/synapse/issues/15385))
+
+
+Synapse 1.80.0 (2023-03-28)
+===========================
+
+No significant changes since 1.80.0rc2.
+
+
+Synapse 1.80.0rc2 (2023-03-22)
+==============================
+
+Bugfixes
+--------
+
+- Fix a bug in which the [`POST /_matrix/client/v3/rooms/{roomId}/report/{eventId}`](https://spec.matrix.org/v1.6/client-server-api/#post_matrixclientv3roomsroomidreporteventid) endpoint would return the wrong error if the user did not have permission to view the event. This aligns Synapse's implementation with [MSC2249](https://github.com/matrix-org/matrix-spec-proposals/pull/2249). ([\#15298](https://github.com/matrix-org/synapse/issues/15298), [\#15300](https://github.com/matrix-org/synapse/issues/15300))
+- Fix a bug introduced in Synapse 1.75.0rc1 where the [SQLite port_db script](https://matrix-org.github.io/synapse/latest/postgres.html#porting-from-sqlite)
+  would fail to open the SQLite database. ([\#15301](https://github.com/matrix-org/synapse/issues/15301))
+
+
+Synapse 1.80.0rc1 (2023-03-21)
+==============================
+
+Features
+--------
+
+- Stabilise support for [MSC3966](https://github.com/matrix-org/matrix-spec-proposals/pull/3966): `event_property_contains` push condition. ([\#15187](https://github.com/matrix-org/synapse/issues/15187))
+- Implement [MSC2659](https://github.com/matrix-org/matrix-spec-proposals/pull/2659): application service ping endpoint. Contributed by Tulir @ Beeper. ([\#15249](https://github.com/matrix-org/synapse/issues/15249))
+- Allow loading `/register/available` endpoint on workers. ([\#15268](https://github.com/matrix-org/synapse/issues/15268))
+- Improve performance of creating and authenticating events. ([\#15195](https://github.com/matrix-org/synapse/issues/15195))
+- Add topic and name events to group of events that are batch persisted when creating a room. ([\#15229](https://github.com/matrix-org/synapse/issues/15229))
+
+
+Bugfixes
+--------
+
+- Fix a long-standing bug in which the user directory would assume any remote membership state events represent a profile change. ([\#14755](https://github.com/matrix-org/synapse/issues/14755), [\#14756](https://github.com/matrix-org/synapse/issues/14756))
+- Implement [MSC3873](https://github.com/matrix-org/matrix-spec-proposals/pull/3873) to fix a long-standing bug where properties with dots were handled ambiguously in push rules. ([\#15190](https://github.com/matrix-org/synapse/issues/15190))
+- Faster joins: Fix a bug introduced in Synapse 1.66 where spurious "Failed to find memberships ..." errors would be logged. ([\#15232](https://github.com/matrix-org/synapse/issues/15232))
+- Fix a long-standing error when sending message into deleted room. ([\#15235](https://github.com/matrix-org/synapse/issues/15235))
+
+
+Updates to the Docker image
+---------------------------
+
+- Ensure the Dockerfile builds on platforms that don't have a `cryptography` wheel. ([\#15239](https://github.com/matrix-org/synapse/issues/15239))
+- Mirror images to the GitHub Container Registry (`ghcr.io/matrix-org/synapse`). ([\#15281](https://github.com/matrix-org/synapse/issues/15281), [\#15282](https://github.com/matrix-org/synapse/issues/15282))
+
+
+Improved Documentation
+----------------------
+
+- Add a missing endpoint to the workers documentation. ([\#15223](https://github.com/matrix-org/synapse/issues/15223))
+
+
+Internal Changes
+----------------
+
+- Add additional functionality to declaring worker types when starting Complement in worker mode. ([\#14921](https://github.com/matrix-org/synapse/issues/14921))
+- Add `Synapse-Trace-Id` to `access-control-expose-headers` header. ([\#14974](https://github.com/matrix-org/synapse/issues/14974))
+- Make the `HttpTransactionCache` use the `Requester` in addition of the just the `Request` to build the transaction key. ([\#15200](https://github.com/matrix-org/synapse/issues/15200))
+- Improve log lines when purging rooms. ([\#15222](https://github.com/matrix-org/synapse/issues/15222))
+- Improve type hints. ([\#15230](https://github.com/matrix-org/synapse/issues/15230), [\#15231](https://github.com/matrix-org/synapse/issues/15231), [\#15238](https://github.com/matrix-org/synapse/issues/15238))
+- Move various module API callback registration methods to a dedicated class. ([\#15237](https://github.com/matrix-org/synapse/issues/15237))
+- Configure GitHub Actions for merge queues. ([\#15244](https://github.com/matrix-org/synapse/issues/15244))
+- Add schema comments about the `destinations` and `destination_rooms` tables. ([\#15247](https://github.com/matrix-org/synapse/issues/15247))
+- Skip processing of auto-join room behaviour if there are no auto-join rooms configured. ([\#15262](https://github.com/matrix-org/synapse/issues/15262))
+- Remove unused store method `_set_destination_retry_timings_emulated`. ([\#15266](https://github.com/matrix-org/synapse/issues/15266))
+- Reorganize URL preview code. ([\#15269](https://github.com/matrix-org/synapse/issues/15269))
+- Clean-up direct TCP replication code. ([\#15272](https://github.com/matrix-org/synapse/issues/15272), [\#15274](https://github.com/matrix-org/synapse/issues/15274))
+- Make `configure_workers_and_start` script used in Complement tests compatible with older versions of Python. ([\#15275](https://github.com/matrix-org/synapse/issues/15275))
+- Add a `/versions` flag for [MSC3952](https://github.com/matrix-org/matrix-spec-proposals/pull/3952). ([\#15293](https://github.com/matrix-org/synapse/issues/15293))
+- Bump hiredis from 2.2.1 to 2.2.2. ([\#15252](https://github.com/matrix-org/synapse/issues/15252))
+- Bump serde from 1.0.152 to 1.0.155. ([\#15253](https://github.com/matrix-org/synapse/issues/15253))
+- Bump pysaml2 from 7.2.1 to 7.3.1. ([\#15254](https://github.com/matrix-org/synapse/issues/15254))
+- Bump msgpack from 1.0.4 to 1.0.5. ([\#15255](https://github.com/matrix-org/synapse/issues/15255))
+- Bump gitpython from 3.1.30 to 3.1.31. ([\#15256](https://github.com/matrix-org/synapse/issues/15256))
+- Bump cryptography from 39.0.1 to 39.0.2. ([\#15257](https://github.com/matrix-org/synapse/issues/15257))
+- Bump pydantic from 1.10.4 to 1.10.6. ([\#15286](https://github.com/matrix-org/synapse/issues/15286))
+- Bump serde from 1.0.155 to 1.0.157. ([\#15287](https://github.com/matrix-org/synapse/issues/15287))
+- Bump anyhow from 1.0.69 to 1.0.70. ([\#15288](https://github.com/matrix-org/synapse/issues/15288))
+- Bump txredisapi from 1.4.7 to 1.4.9. ([\#15289](https://github.com/matrix-org/synapse/issues/15289))
+- Bump pygithub from 1.57 to 1.58.1. ([\#15290](https://github.com/matrix-org/synapse/issues/15290))
+- Bump types-requests from 2.28.11.12 to 2.28.11.15. ([\#15291](https://github.com/matrix-org/synapse/issues/15291))
+
+
+
+Synapse 1.79.0 (2023-03-14)
+===========================
+
+No significant changes since 1.79.0rc2.
+
+
 Synapse 1.79.0rc2 (2023-03-13)
 ==============================
 
@@ -304,7 +476,7 @@ Those who are `poetry install`ing from source using our lockfile should ensure t
 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. 
+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
 

Cargo.lock

@@ -13,9 +13,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.69"
+version = "1.0.70"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "224afbd727c3d6e4b90103ece64b8d1b67fbb1973b1046c2281eed3f3803f800"
+checksum = "7de8ce5e0f9f8d88245311066a578d72b7af3e7088f32783804676302df237e4"
 
 [[package]]
 name = "arc-swap"
@@ -185,9 +185,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.46"
+version = "1.0.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94e2ef8dbfc347b10c094890f778ee2e36ca9bb4262e86dc99cd217e35f3470b"
+checksum = "1d0e1ae9e836cc3beddd63db0df682593d7e2d3d891ae8c9083d2113e1744224"
 dependencies = [
  "unicode-ident",
 ]
@@ -250,7 +250,7 @@ dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
  "quote",
- "syn",
+ "syn 1.0.104",
 ]
 
 [[package]]
@@ -261,7 +261,7 @@ checksum = "c8df9be978a2d2f0cdebabb03206ed73b11314701a5bfe71b0d753b81997777f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.104",
 ]
 
 [[package]]
@@ -276,9 +276,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.21"
+version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179"
+checksum = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc"
 dependencies = [
  "proc-macro2",
 ]
@@ -294,9 +294,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.7.1"
+version = "1.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48aaa5748ba571fb95cd2c85c09f629215d3a6ece942baa100950af03a34f733"
+checksum = "8b1f693b24f6ac912f4893ef08244d70b6067480d2f1a46e950c9691e6749d1d"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -305,9 +305,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.27"
+version = "0.6.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
+checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
 
 [[package]]
 name = "ryu"
@@ -323,29 +323,29 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "serde"
-version = "1.0.152"
+version = "1.0.159"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb7d1f0d3021d347a83e556fc4683dea2ea09d87bccdf88ff5c12545d89d5efb"
+checksum = "3c04e8343c3daeec41f58990b9d77068df31209f2af111e059e9fe9646693065"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.152"
+version = "1.0.159"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af487d118eecd09402d70a5d72551860e788df87b464af30e5ea6a38c75c541e"
+checksum = "4c614d17805b093df4b147b51339e7e44bf05ef59fba1e45d83500bcfb4d8585"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.10",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.94"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c533a59c9d8a93a09c6ab31f0fd5e5f4dd1b8fc9434804029839884765d04ea"
+checksum = "d721eca97ac802aa7777b701877c8004d950fc142651367300d21c1cc0194744"
 dependencies = [
  "itoa",
  "ryu",
@@ -375,6 +375,17 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "syn"
+version = "2.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5aad1363ed6d37b84299588d62d3a7d95b5a5c2d9aad5c85609fda12afaa1f40"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "synapse"
 version = "0.1.0"

Dockerfile

@@ -0,0 +1,61 @@
+ARG PYTHON_VERSION=3.11
+
+FROM docker.io/python:${PYTHON_VERSION}-slim as builder
+
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    libffi-dev \
+    libjpeg-dev \
+    libpq-dev \
+    libssl-dev \
+    libwebp-dev \
+    libxml++2.6-dev \
+    libxslt1-dev \
+    zlib1g-dev \
+    openssl \
+    git \
+    curl \
+ && rm -rf /var/lib/apt/lists/*
+
+ENV RUSTUP_HOME=/rust
+ENV CARGO_HOME=/cargo
+ENV PATH=/cargo/bin:/rust/bin:$PATH
+RUN mkdir /rust /cargo
+
+RUN curl -sSf https://sh.rustup.rs | sh -s -- -y --no-modify-path --default-toolchain stable
+
+COPY synapse /synapse/synapse/
+COPY rust /synapse/rust/
+COPY README.rst pyproject.toml requirements.txt build_rust.py /synapse/
+
+RUN pip install --prefix="/install" --no-warn-script-location --ignore-installed \
+        --no-deps -r /synapse/requirements.txt \
+ && pip install --prefix="/install" --no-warn-script-location \
+        --no-deps \
+	'git+https://github.com/maunium/synapse-simple-antispam#egg=synapse-simple-antispam' \
+	'git+https://github.com/devture/matrix-synapse-shared-secret-auth@2.0.2#egg=shared_secret_authenticator' \
+ && pip install --prefix="/install" --no-warn-script-location \
+        --no-deps /synapse
+
+FROM docker.io/python:${PYTHON_VERSION}-slim
+
+RUN apt-get update && apt-get install -y \
+    curl \
+    libjpeg62-turbo \
+    libpq5 \
+    libwebp6 \
+    xmlsec1 \
+    libjemalloc2 \
+    openssl \
+ && rm -rf /var/lib/apt/lists/*
+
+COPY --from=builder /install /usr/local
+
+VOLUME ["/data"]
+ENV LD_PRELOAD="/usr/lib/x86_64-linux-gnu/libjemalloc.so.2"
+
+ENTRYPOINT ["python3", "-m", "synapse.app.homeserver"]
+CMD ["--keys-directory", "/data", "-c", "/data/homeserver.yaml"]
+
+HEALTHCHECK --start-period=5s --interval=1m --timeout=5s \
+  CMD curl -fSs http://localhost:8008/health || exit 1

README.md

@@ -0,0 +1,69 @@
+# Maunium Synapse
+This is a fork of [Synapse] to remove dumb limits and fix bugs that the
+upstream devs don't want to fix.
+
+The only official distribution is the docker image in the [GitLab container
+registry], but you can also install from source ([upstream instructions]).
+
+The master branch and `:latest` docker tag are upgraded to each upstream
+release candidate very soon after release (usually within 10 minutes†). There
+are also docker tags for each release, e.g. `:1.75.0`. If you don't want RCs,
+use the specific release tags.
+
+†If there are merge conflicts, the update may be delayed for up to a few days
+after the full release.
+
+[Synapse]: https://github.com/matrix-org/synapse
+[GitLab container registry]: https://mau.dev/maunium/synapse/container_registry
+[upstream instructions]: https://github.com/matrix-org/synapse/blob/develop/INSTALL.md#installing-from-source
+
+## List of changes
+* Default power level for room creator is 9001 instead of 100.
+* Room creator can specify a custom room ID with the `room_id` param in the
+  request body. If the room ID is already in use, it will return `M_CONFLICT`.
+* ~~URL previewer user agent includes `Bot` so Twitter previews work properly.~~
+  Upstreamed after over 2 years 🎉
+* ~~Local event creation concurrency is disabled to avoid unnecessary state
+  resolution.~~ Upstreamed after over 3 years 🎉
+* Register admin API can register invalid user IDs.
+* Docker image with jemalloc enabled by default.
+* Config option to allow specific users to send events without unnecessary
+  validation.
+* Config option to allow specific users to receive events that are usually
+  filtered away (e.g. `org.matrix.dummy_event` and `m.room.aliases`).
+* Config option to allow specific users to use timestamp massaging without
+  being appservice users.
+* Config option to allow appservices to use MSC2716 batch sending as any local user.
+* Removed bad pusher URL validation.
+* webp images are thumbnailed to webp instead of jpeg to avoid losing
+  transparency.
+* Media repo `Cache-Control` header says `immutable` and 1 year for all media
+  that exists, as media IDs in Matrix are immutable.
+* Allowed sending custom data with read receipts.
+
+You can view the full list of changes on the [meow-patchset] branch.
+Additionally, historical patch sets are saved as `meow-patchset-vX` [tags].
+
+[meow-patchset]: https://mau.dev/maunium/synapse/-/compare/patchset-base...meow-patchset
+[tags]: https://mau.dev/maunium/synapse/-/tags?search=meow-patchset&sort=updated_desc
+
+## Configuration
+Generating a new config will include the `meow` section, but this is here for
+reference for existing configs.
+
+```yaml
+meow:
+   # List of users who aren't subject to unnecessary validation in the C-S API.
+   validation_override:
+   - "@you:example.com"
+   # List of users who will get org.matrix.dummy_event and m.room.aliases events down /sync
+   filter_override:
+   - "@you:example.com"
+   # Whether or not the admin API should be able to register invalid user IDs.
+   admin_api_register_invalid: true
+   # List of users who can use timestamp massaging without being appservices
+   timestamp_override:
+   - "@you:example.com"
+   # Whether appservices should be allowed to use MSC2716 batch sending as any local user.
+   appservice_batch_send_any: false
+```

debian/changelog

@@ -1,3 +1,33 @@
+matrix-synapse-py3 (1.81.0~rc1) stable; urgency=medium
+
+  * New Synapse release 1.81.0rc1.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 04 Apr 2023 14:29:03 +0100
+
+matrix-synapse-py3 (1.80.0) stable; urgency=medium
+
+  * New Synapse release 1.80.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 28 Mar 2023 11:10:33 +0100
+
+matrix-synapse-py3 (1.80.0~rc2) stable; urgency=medium
+
+  * New Synapse release 1.80.0rc2.
+
+ -- Synapse Packaging team <packages@matrix.org>  Wed, 22 Mar 2023 08:30:16 -0700
+
+matrix-synapse-py3 (1.80.0~rc1) stable; urgency=medium
+
+  * New Synapse release 1.80.0rc1.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 21 Mar 2023 10:56:08 -0700
+
+matrix-synapse-py3 (1.79.0) stable; urgency=medium
+
+  * New Synapse release 1.79.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 14 Mar 2023 16:14:50 +0100
+
 matrix-synapse-py3 (1.79.0~rc2) stable; urgency=medium
 
   * New Synapse release 1.79.0rc2.

dev-docs/Makefile

@@ -0,0 +1,20 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = .
+BUILDDIR      = _build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

dev-docs/conf.py

@@ -0,0 +1,50 @@
+# Configuration file for the Sphinx documentation builder.
+#
+# For the full list of built-in configuration values, see the documentation:
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
+
+# -- Project information -----------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
+
+project = "Synapse development"
+copyright = "2023, The Matrix.org Foundation C.I.C."
+author = "The Synapse Maintainers and Community"
+
+# -- General configuration ---------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
+
+extensions = [
+    "autodoc2",
+    "myst_parser",
+]
+
+templates_path = ["_templates"]
+exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]
+
+
+# -- Options for Autodoc2 ----------------------------------------------------
+
+autodoc2_docstring_parser_regexes = [
+    # this will render all docstrings as 'MyST' Markdown
+    (r".*", "myst"),
+]
+
+autodoc2_packages = [
+    {
+        "path": "../synapse",
+        # Don't render documentation for everything as a matter of course
+        "auto_mode": False,
+    },
+]
+
+
+# -- Options for MyST (Markdown) ---------------------------------------------
+
+# myst_heading_anchors = 2
+
+
+# -- Options for HTML output -------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
+
+html_theme = "furo"
+html_static_path = ["_static"]

dev-docs/index.rst

@@ -0,0 +1,22 @@
+.. Synapse Developer Documentation documentation master file, created by
+   sphinx-quickstart on Mon Mar 13 08:59:51 2023.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to the Synapse Developer Documentation!
+===========================================================
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contents:
+
+   modules/federation_sender
+
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`

dev-docs/modules/federation_sender.md

@@ -0,0 +1,5 @@
+Federation Sender
+=================
+
+```{autodoc2-docstring} synapse.federation.sender
+```

docker/Dockerfile

@@ -37,9 +37,24 @@ RUN \
   --mount=type=cache,target=/var/cache/apt,sharing=locked \
   --mount=type=cache,target=/var/lib/apt,sharing=locked \
   apt-get update -qq && apt-get install -yqq \
-  build-essential git libffi-dev libssl-dev \
+  build-essential curl git libffi-dev libssl-dev \
   && rm -rf /var/lib/apt/lists/*
 
+# Install rust and ensure its in the PATH.
+# (Rust may be needed to compile `cryptography`---which is one of poetry's
+# dependencies---on platforms that don't have a `cryptography` wheel.
+ENV RUSTUP_HOME=/rust
+ENV CARGO_HOME=/cargo
+ENV PATH=/cargo/bin:/rust/bin:$PATH
+RUN mkdir /rust /cargo
+
+RUN curl -sSf https://sh.rustup.rs | sh -s -- -y --no-modify-path --default-toolchain stable --profile minimal
+
+# arm64 builds consume a lot of memory if `CARGO_NET_GIT_FETCH_WITH_CLI` is not
+# set to true, so we expose it as a build-arg.
+ARG CARGO_NET_GIT_FETCH_WITH_CLI=false
+ENV CARGO_NET_GIT_FETCH_WITH_CLI=$CARGO_NET_GIT_FETCH_WITH_CLI
+
 # We install poetry in its own build stage to avoid its dependencies conflicting with
 # synapse's dependencies.
 RUN --mount=type=cache,target=/root/.cache/pip \

docker/complement/conf/start_for_complement.sh

@@ -51,8 +51,7 @@ if [[ -n "$SYNAPSE_COMPLEMENT_USE_WORKERS" ]]; then
   # -z True if the length of string is zero.
   if [[ -z "$SYNAPSE_WORKER_TYPES" ]]; then
     export SYNAPSE_WORKER_TYPES="\
-      event_persister, \
-      event_persister, \
+      event_persister:2, \
       background_worker, \
       frontend_proxy, \
       event_creator, \
@@ -64,7 +63,8 @@ if [[ -n "$SYNAPSE_COMPLEMENT_USE_WORKERS" ]]; then
       synchrotron, \
       client_reader, \
       appservice, \
-      pusher"
+      pusher, \
+      stream_writers=account_data+presence+receipts+to_device+typing"
 
   fi
   log "Workers requested: $SYNAPSE_WORKER_TYPES"

docker/configure_workers_and_start.py

@@ -19,8 +19,15 @@
 # The environment variables it reads are:
 #   * SYNAPSE_SERVER_NAME: The desired server_name of the homeserver.
 #   * SYNAPSE_REPORT_STATS: Whether to report stats.
-#   * SYNAPSE_WORKER_TYPES: A comma separated list of worker names as specified in WORKER_CONFIG
-#         below. Leave empty for no workers.
+#   * SYNAPSE_WORKER_TYPES: A comma separated list of worker names as specified in WORKERS_CONFIG
+#         below. Leave empty for no workers. Add a ':' and a number at the end to
+#         multiply that worker. Append multiple worker types with '+' to merge the
+#         worker types into a single worker. Add a name and a '=' to the front of a
+#         worker type to give this instance a name in logs and nginx.
+#         Examples:
+#         SYNAPSE_WORKER_TYPES='event_persister, federation_sender, client_reader'
+#         SYNAPSE_WORKER_TYPES='event_persister:2, federation_sender:2, client_reader'
+#         SYNAPSE_WORKER_TYPES='stream_writers=account_data+presence+typing'
 #   * SYNAPSE_AS_REGISTRATION_DIR: If specified, a directory in which .yaml and .yml files
 #         will be treated as Application Service registration files.
 #   * SYNAPSE_TLS_CERT: Path to a TLS certificate in PEM format.
@@ -40,16 +47,33 @@
 
 import os
 import platform
+import re
 import subprocess
 import sys
+from collections import defaultdict
+from itertools import chain
 from pathlib import Path
-from typing import Any, Dict, List, Mapping, MutableMapping, NoReturn, Optional, Set
+from typing import (
+    Any,
+    Dict,
+    List,
+    Mapping,
+    MutableMapping,
+    NoReturn,
+    Optional,
+    Set,
+    SupportsIndex,
+)
 
 import yaml
 from jinja2 import Environment, FileSystemLoader
 
 MAIN_PROCESS_HTTP_LISTENER_PORT = 8080
 
+# A simple name used as a placeholder in the WORKERS_CONFIG below. This will be replaced
+# during processing with the name of the worker.
+WORKER_PLACEHOLDER_NAME = "placeholder_name"
+
 # Workers with exposed endpoints needs either "client", "federation", or "media" listener_resources
 # Watching /_matrix/client needs a "client" listener
 # Watching /_matrix/federation needs a "federation" listener
@@ -70,11 +94,13 @@ WORKERS_CONFIG: Dict[str, Dict[str, Any]] = {
         "endpoint_patterns": [
             "^/_matrix/client/(api/v1|r0|v3|unstable)/user_directory/search$"
         ],
-        "shared_extra_conf": {"update_user_directory_from_worker": "user_dir1"},
+        "shared_extra_conf": {
+            "update_user_directory_from_worker": WORKER_PLACEHOLDER_NAME
+        },
         "worker_extra_conf": "",
     },
     "media_repository": {
-        "app": "synapse.app.media_repository",
+        "app": "synapse.app.generic_worker",
         "listener_resources": ["media"],
         "endpoint_patterns": [
             "^/_matrix/media/",
@@ -87,7 +113,7 @@ WORKERS_CONFIG: Dict[str, Dict[str, Any]] = {
         # The first configured media worker will run the media background jobs
         "shared_extra_conf": {
             "enable_media_repo": False,
-            "media_instance_running_background_jobs": "media_repository1",
+            "media_instance_running_background_jobs": WORKER_PLACEHOLDER_NAME,
         },
         "worker_extra_conf": "enable_media_repo: true",
     },
@@ -95,7 +121,9 @@ WORKERS_CONFIG: Dict[str, Dict[str, Any]] = {
         "app": "synapse.app.generic_worker",
         "listener_resources": [],
         "endpoint_patterns": [],
-        "shared_extra_conf": {"notify_appservices_from_worker": "appservice1"},
+        "shared_extra_conf": {
+            "notify_appservices_from_worker": WORKER_PLACEHOLDER_NAME
+        },
         "worker_extra_conf": "",
     },
     "federation_sender": {
@@ -135,6 +163,7 @@ WORKERS_CONFIG: Dict[str, Dict[str, Any]] = {
             "^/_matrix/client/versions$",
             "^/_matrix/client/(api/v1|r0|v3|unstable)/voip/turnServer$",
             "^/_matrix/client/(r0|v3|unstable)/register$",
+            "^/_matrix/client/(r0|v3|unstable)/register/available$",
             "^/_matrix/client/(r0|v3|unstable)/auth/.*/fallback/web$",
             "^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/messages$",
             "^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/event",
@@ -143,6 +172,7 @@ WORKERS_CONFIG: Dict[str, Dict[str, Any]] = {
             "^/_matrix/client/v1/rooms/.*/timestamp_to_event$",
             "^/_matrix/client/(api/v1|r0|v3|unstable)/search",
             "^/_matrix/client/(r0|v3|unstable)/user/.*/filter(/|$)",
+            "^/_matrix/client/(r0|v3|unstable)/password_policy$",
         ],
         "shared_extra_conf": {},
         "worker_extra_conf": "",
@@ -192,9 +222,9 @@ WORKERS_CONFIG: Dict[str, Dict[str, Any]] = {
         "app": "synapse.app.generic_worker",
         "listener_resources": [],
         "endpoint_patterns": [],
-        # This worker cannot be sharded. Therefore there should only ever be one background
-        # worker, and it should be named background_worker1
-        "shared_extra_conf": {"run_background_tasks_on": "background_worker1"},
+        # This worker cannot be sharded. Therefore, there should only ever be one
+        # background worker. This is enforced for the safety of your database.
+        "shared_extra_conf": {"run_background_tasks_on": WORKER_PLACEHOLDER_NAME},
         "worker_extra_conf": "",
     },
     "event_creator": {
@@ -275,7 +305,7 @@ NGINX_LOCATION_CONFIG_BLOCK = """
 """
 
 NGINX_UPSTREAM_CONFIG_BLOCK = """
-upstream {upstream_worker_type} {{
+upstream {upstream_worker_base_name} {{
 {body}
 }}
 """
@@ -326,7 +356,7 @@ def convert(src: str, dst: str, **template_vars: object) -> None:
 
 def add_worker_roles_to_shared_config(
     shared_config: dict,
-    worker_type: str,
+    worker_types_set: Set[str],
     worker_name: str,
     worker_port: int,
 ) -> None:
@@ -334,22 +364,36 @@ def add_worker_roles_to_shared_config(
     append appropriate worker information to it for the current worker_type instance.
 
     Args:
-        shared_config: The config dict that all worker instances share (after being converted to YAML)
-        worker_type: The type of worker (one of those defined in WORKERS_CONFIG).
+        shared_config: The config dict that all worker instances share (after being
+            converted to YAML)
+        worker_types_set: The type of worker (one of those defined in WORKERS_CONFIG).
+            This list can be a single worker type or multiple.
         worker_name: The name of the worker instance.
         worker_port: The HTTP replication port that the worker instance is listening on.
     """
-    # The instance_map config field marks the workers that write to various replication streams
+    # The instance_map config field marks the workers that write to various replication
+    # streams
     instance_map = shared_config.setdefault("instance_map", {})
 
-    # Worker-type specific sharding config
-    if worker_type == "pusher":
+    # This is a list of the stream_writers that there can be only one of. Events can be
+    # sharded, and therefore doesn't belong here.
+    singular_stream_writers = [
+        "account_data",
+        "presence",
+        "receipts",
+        "to_device",
+        "typing",
+    ]
+
+    # Worker-type specific sharding config. Now a single worker can fulfill multiple
+    # roles, check each.
+    if "pusher" in worker_types_set:
         shared_config.setdefault("pusher_instances", []).append(worker_name)
 
-    elif worker_type == "federation_sender":
+    if "federation_sender" in worker_types_set:
         shared_config.setdefault("federation_sender_instances", []).append(worker_name)
 
-    elif worker_type == "event_persister":
+    if "event_persister" in worker_types_set:
         # Event persisters write to the events stream, so we need to update
         # the list of event stream writers
         shared_config.setdefault("stream_writers", {}).setdefault("events", []).append(
@@ -362,19 +406,154 @@ def add_worker_roles_to_shared_config(
             "port": worker_port,
         }
 
-    elif worker_type in ["account_data", "presence", "receipts", "to_device", "typing"]:
-        # Update the list of stream writers
-        # It's convenient that the name of the worker type is the same as the stream to write
-        shared_config.setdefault("stream_writers", {}).setdefault(
-            worker_type, []
-        ).append(worker_name)
+    # Update the list of stream writers. It's convenient that the name of the worker
+    # type is the same as the stream to write. Iterate over the whole list in case there
+    # is more than one.
+    for worker in worker_types_set:
+        if worker in singular_stream_writers:
+            shared_config.setdefault("stream_writers", {}).setdefault(
+                worker, []
+            ).append(worker_name)
 
-        # Map of stream writer instance names to host/ports combos
-        # For now, all stream writers need http replication ports
-        instance_map[worker_name] = {
-            "host": "localhost",
-            "port": worker_port,
-        }
+            # Map of stream writer instance names to host/ports combos
+            # For now, all stream writers need http replication ports
+            instance_map[worker_name] = {
+                "host": "localhost",
+                "port": worker_port,
+            }
+
+
+def merge_worker_template_configs(
+    existing_dict: Optional[Dict[str, Any]],
+    to_be_merged_dict: Dict[str, Any],
+) -> Dict[str, Any]:
+    """When given an existing dict of worker template configuration consisting with both
+        dicts and lists, merge new template data from WORKERS_CONFIG(or create) and
+        return new dict.
+
+    Args:
+        existing_dict: Either an existing worker template or a fresh blank one.
+        to_be_merged_dict: The template from WORKERS_CONFIGS to be merged into
+            existing_dict.
+    Returns: The newly merged together dict values.
+    """
+    new_dict: Dict[str, Any] = {}
+    if not existing_dict:
+        # It doesn't exist yet, just use the new dict(but take a copy not a reference)
+        new_dict = to_be_merged_dict.copy()
+    else:
+        for i in to_be_merged_dict.keys():
+            if (i == "endpoint_patterns") or (i == "listener_resources"):
+                # merge the two lists, remove duplicates
+                new_dict[i] = list(set(existing_dict[i] + to_be_merged_dict[i]))
+            elif i == "shared_extra_conf":
+                # merge dictionary's, the worker name will be replaced later
+                new_dict[i] = {**existing_dict[i], **to_be_merged_dict[i]}
+            elif i == "worker_extra_conf":
+                # There is only one worker type that has a 'worker_extra_conf' and it is
+                # the media_repo. Since duplicate worker types on the same worker don't
+                # work, this is fine.
+                new_dict[i] = existing_dict[i] + to_be_merged_dict[i]
+            else:
+                # Everything else should be identical, like "app", which only works
+                # because all apps are now generic_workers.
+                new_dict[i] = to_be_merged_dict[i]
+    return new_dict
+
+
+def insert_worker_name_for_worker_config(
+    existing_dict: Dict[str, Any], worker_name: str
+) -> Dict[str, Any]:
+    """Insert a given worker name into the worker's configuration dict.
+
+    Args:
+        existing_dict: The worker_config dict that is imported into shared_config.
+        worker_name: The name of the worker to insert.
+    Returns: Copy of the dict with newly inserted worker name
+    """
+    dict_to_edit = existing_dict.copy()
+    for k, v in dict_to_edit["shared_extra_conf"].items():
+        # Only proceed if it's the placeholder name string
+        if v == WORKER_PLACEHOLDER_NAME:
+            dict_to_edit["shared_extra_conf"][k] = worker_name
+    return dict_to_edit
+
+
+def apply_requested_multiplier_for_worker(worker_types: List[str]) -> List[str]:
+    """
+    Apply multiplier(if found) by returning a new expanded list with some basic error
+    checking.
+
+    Args:
+        worker_types: The unprocessed List of requested workers
+    Returns:
+        A new list with all requested workers expanded.
+    """
+    # Checking performed:
+    # 1. if worker:2 or more is declared, it will create additional workers up to number
+    # 2. if worker:1, it will create a single copy of this worker as if no number was
+    #   given
+    # 3. if worker:0 is declared, this worker will be ignored. This is to allow for
+    #   scripting and automated expansion and is intended behaviour.
+    # 4. if worker:NaN or is a negative number, it will error and log it.
+    new_worker_types = []
+    for worker_type in worker_types:
+        if ":" in worker_type:
+            worker_type_components = split_and_strip_string(worker_type, ":", 1)
+            worker_count = 0
+            # Should only be 2 components, a type of worker(s) and an integer as a
+            # string. Cast the number as an int then it can be used as a counter.
+            try:
+                worker_count = int(worker_type_components[1])
+            except ValueError:
+                error(
+                    f"Bad number in worker count for '{worker_type}': "
+                    f"'{worker_type_components[1]}' is not an integer"
+                )
+
+            # As long as there are more than 0, we add one to the list to make below.
+            for _ in range(worker_count):
+                new_worker_types.append(worker_type_components[0])
+
+        else:
+            # If it's not a real worker_type, it will error out later.
+            new_worker_types.append(worker_type)
+    return new_worker_types
+
+
+def is_sharding_allowed_for_worker_type(worker_type: str) -> bool:
+    """Helper to check to make sure worker types that cannot have multiples do not.
+
+    Args:
+        worker_type: The type of worker to check against.
+    Returns: True if allowed, False if not
+    """
+    return worker_type not in [
+        "background_worker",
+        "account_data",
+        "presence",
+        "receipts",
+        "typing",
+        "to_device",
+    ]
+
+
+def split_and_strip_string(
+    given_string: str, split_char: str, max_split: SupportsIndex = -1
+) -> List[str]:
+    """
+    Helper to split a string on split_char and strip whitespace from each end of each
+        element.
+    Args:
+        given_string: The string to split
+        split_char: The character to split the string on
+        max_split: kwarg for split() to limit how many times the split() happens
+    Returns:
+        A List of strings
+    """
+    # Removes whitespace from ends of result strings before adding to list. Allow for
+    # overriding 'maxsplit' kwarg, default being -1 to signify no maximum.
+    return [x.strip() for x in given_string.split(split_char, maxsplit=max_split)]
 
 
 def generate_base_homeserver_config() -> None:
@@ -389,29 +568,153 @@ def generate_base_homeserver_config() -> None:
     subprocess.run(["/usr/local/bin/python", "/start.py", "migrate_config"], check=True)
 
 
+def parse_worker_types(
+    requested_worker_types: List[str],
+) -> Dict[str, Set[str]]:
+    """Read the desired list of requested workers and prepare the data for use in
+        generating worker config files while also checking for potential gotchas.
+
+    Args:
+        requested_worker_types: The list formed from the split environment variable
+            containing the unprocessed requests for workers.
+
+    Returns: A dict of worker names to set of worker types. Format:
+        {'worker_name':
+            {'worker_type', 'worker_type2'}
+        }
+    """
+    # A counter of worker_base_name -> int. Used for determining the name for a given
+    # worker when generating its config file, as each worker's name is just
+    # worker_base_name followed by instance number
+    worker_base_name_counter: Dict[str, int] = defaultdict(int)
+
+    # Similar to above, but more finely grained. This is used to determine we don't have
+    # more than a single worker for cases where multiples would be bad(e.g. presence).
+    worker_type_shard_counter: Dict[str, int] = defaultdict(int)
+
+    # The final result of all this processing
+    dict_to_return: Dict[str, Set[str]] = {}
+
+    # Handle any multipliers requested for given workers.
+    multiple_processed_worker_types = apply_requested_multiplier_for_worker(
+        requested_worker_types
+    )
+
+    # Process each worker_type_string
+    # Examples of expected formats:
+    #  - requested_name=type1+type2+type3
+    #  - synchrotron
+    #  - event_creator+event_persister
+    for worker_type_string in multiple_processed_worker_types:
+        # First, if a name is requested, use that — otherwise generate one.
+        worker_base_name: str = ""
+        if "=" in worker_type_string:
+            # Split on "=", remove extra whitespace from ends then make list
+            worker_type_split = split_and_strip_string(worker_type_string, "=")
+            if len(worker_type_split) > 2:
+                error(
+                    "There should only be one '=' in the worker type string. "
+                    f"Please fix: {worker_type_string}"
+                )
+
+            # Assign the name
+            worker_base_name = worker_type_split[0]
+
+            if not re.match(r"^[a-zA-Z0-9_+-]*[a-zA-Z_+-]$", worker_base_name):
+                # Apply a fairly narrow regex to the worker names. Some characters
+                # aren't safe for use in file paths or nginx configurations.
+                # Don't allow to end with a number because we'll add a number
+                # ourselves in a moment.
+                error(
+                    "Invalid worker name; please choose a name consisting of "
+                    "alphanumeric letters, _ + -, but not ending with a digit: "
+                    f"{worker_base_name!r}"
+                )
+
+            # Continue processing the remainder of the worker_type string
+            # with the name override removed.
+            worker_type_string = worker_type_split[1]
+
+        # Split the worker_type_string on "+", remove whitespace from ends then make
+        # the list a set so it's deduplicated.
+        worker_types_set: Set[str] = set(
+            split_and_strip_string(worker_type_string, "+")
+        )
+
+        if not worker_base_name:
+            # No base name specified: generate one deterministically from set of
+            # types
+            worker_base_name = "+".join(sorted(worker_types_set))
+
+        # At this point, we have:
+        #   worker_base_name which is the name for the worker, without counter.
+        #   worker_types_set which is the set of worker types for this worker.
+
+        # Validate worker_type and make sure we don't allow sharding for a worker type
+        # that doesn't support it. Will error and stop if it is a problem,
+        # e.g. 'background_worker'.
+        for worker_type in worker_types_set:
+            # Verify this is a real defined worker type. If it's not, stop everything so
+            # it can be fixed.
+            if worker_type not in WORKERS_CONFIG:
+                error(
+                    f"{worker_type} is an unknown worker type! Was found in "
+                    f"'{worker_type_string}'. Please fix!"
+                )
+
+            if worker_type in worker_type_shard_counter:
+                if not is_sharding_allowed_for_worker_type(worker_type):
+                    error(
+                        f"There can be only a single worker with {worker_type} "
+                        "type. Please recount and remove."
+                    )
+            # Not in shard counter, must not have seen it yet, add it.
+            worker_type_shard_counter[worker_type] += 1
+
+        # Generate the number for the worker using incrementing counter
+        worker_base_name_counter[worker_base_name] += 1
+        worker_number = worker_base_name_counter[worker_base_name]
+        worker_name = f"{worker_base_name}{worker_number}"
+
+        if worker_number > 1:
+            # If this isn't the first worker, check that we don't have a confusing
+            # mixture of worker types with the same base name.
+            first_worker_with_base_name = dict_to_return[f"{worker_base_name}1"]
+            if first_worker_with_base_name != worker_types_set:
+                error(
+                    f"Can not use worker_name: '{worker_name}' for worker_type(s): "
+                    f"{worker_types_set!r}. It is already in use by "
+                    f"worker_type(s): {first_worker_with_base_name!r}"
+                )
+
+        dict_to_return[worker_name] = worker_types_set
+
+    return dict_to_return
+
+
 def generate_worker_files(
-    environ: Mapping[str, str], config_path: str, data_dir: str
+    environ: Mapping[str, str],
+    config_path: str,
+    data_dir: str,
+    requested_worker_types: Dict[str, Set[str]],
 ) -> None:
-    """Read the desired list of workers from environment variables and generate
-    shared homeserver, nginx and supervisord configs.
+    """Read the desired workers(if any) that is passed in and generate shared
+        homeserver, nginx and supervisord configs.
 
     Args:
         environ: os.environ instance.
         config_path: The location of the generated Synapse main worker config file.
         data_dir: The location of the synapse data directory. Where log and
             user-facing config files live.
+        requested_worker_types: A Dict containing requested workers in the format of
+            {'worker_name1': {'worker_type', ...}}
     """
     # Note that yaml cares about indentation, so care should be taken to insert lines
     # into files at the correct indentation below.
 
-    # shared_config is the contents of a Synapse config file that will be shared amongst
-    # the main Synapse process as well as all workers.
-    # It is intended mainly for disabling functionality when certain workers are spun up,
-    # and adding a replication listener.
-
-    # First read the original config file and extract the listeners block. Then we'll add
-    # another listener for replication. Later we'll write out the result to the shared
-    # config file.
+    # First read the original config file and extract the listeners block. Then we'll
+    # add another listener for replication. Later we'll write out the result to the
+    # shared config file.
     listeners = [
         {
             "port": 9093,
@@ -427,9 +730,9 @@ def generate_worker_files(
             listeners += original_listeners
 
     # The shared homeserver config. The contents of which will be inserted into the
-    # base shared worker jinja2 template.
-    #
-    # This config file will be passed to all workers, included Synapse's main process.
+    # base shared worker jinja2 template. This config file will be passed to all
+    # workers, included Synapse's main process. It is intended mainly for disabling
+    # functionality when certain workers are spun up, and adding a replication listener.
     shared_config: Dict[str, Any] = {"listeners": listeners}
 
     # List of dicts that describe workers.
@@ -437,31 +740,20 @@ def generate_worker_files(
     # program blocks.
     worker_descriptors: List[Dict[str, Any]] = []
 
-    # Upstreams for load-balancing purposes. This dict takes the form of a worker type to the
-    # ports of each worker. For example:
+    # Upstreams for load-balancing purposes. This dict takes the form of the worker
+    # type to the ports of each worker. For example:
     # {
     #   worker_type: {1234, 1235, ...}}
     # }
     # and will be used to construct 'upstream' nginx directives.
     nginx_upstreams: Dict[str, Set[int]] = {}
 
-    # A map of: {"endpoint": "upstream"}, where "upstream" is a str representing what will be
-    # placed after the proxy_pass directive. The main benefit to representing this data as a
-    # dict over a str is that we can easily deduplicate endpoints across multiple instances
-    # of the same worker.
-    #
-    # An nginx site config that will be amended to depending on the workers that are
-    # spun up. To be placed in /etc/nginx/conf.d.
-    nginx_locations = {}
-
-    # Read the desired worker configuration from the environment
-    worker_types_env = environ.get("SYNAPSE_WORKER_TYPES", "").strip()
-    if not worker_types_env:
-        # No workers, just the main process
-        worker_types = []
-    else:
-        # Split type names by comma, ignoring whitespace.
-        worker_types = [x.strip() for x in worker_types_env.split(",")]
+    # A map of: {"endpoint": "upstream"}, where "upstream" is a str representing what
+    # will be placed after the proxy_pass directive. The main benefit to representing
+    # this data as a dict over a str is that we can easily deduplicate endpoints
+    # across multiple instances of the same worker. The final rendering will be combined
+    # with nginx_upstreams and placed in /etc/nginx/conf.d.
+    nginx_locations: Dict[str, str] = {}
 
     # Create the worker configuration directory if it doesn't already exist
     os.makedirs("/conf/workers", exist_ok=True)
@@ -469,66 +761,57 @@ def generate_worker_files(
     # Start worker ports from this arbitrary port
     worker_port = 18009
 
-    # A counter of worker_type -> int. Used for determining the name for a given
-    # worker type when generating its config file, as each worker's name is just
-    # worker_type + instance #
-    worker_type_counter: Dict[str, int] = {}
-
     # A list of internal endpoints to healthcheck, starting with the main process
     # which exists even if no workers do.
     healthcheck_urls = ["http://localhost:8080/health"]
 
-    # For each worker type specified by the user, create config values
-    for worker_type in worker_types:
-        worker_config = WORKERS_CONFIG.get(worker_type)
-        if worker_config:
-            worker_config = worker_config.copy()
-        else:
-            error(worker_type + " is an unknown worker type! Please fix!")
+    # Get the set of all worker types that we have configured
+    all_worker_types_in_use = set(chain(*requested_worker_types.values()))
+    # Map locations to upstreams (corresponding to worker types) in Nginx
+    # but only if we use the appropriate worker type
+    for worker_type in all_worker_types_in_use:
+        for endpoint_pattern in WORKERS_CONFIG[worker_type]["endpoint_patterns"]:
+            nginx_locations[endpoint_pattern] = f"http://{worker_type}"
 
-        new_worker_count = worker_type_counter.setdefault(worker_type, 0) + 1
-        worker_type_counter[worker_type] = new_worker_count
+    # For each worker type specified by the user, create config values and write it's
+    # yaml config file
+    for worker_name, worker_types_set in requested_worker_types.items():
+        # The collected and processed data will live here.
+        worker_config: Dict[str, Any] = {}
+
+        # Merge all worker config templates for this worker into a single config
+        for worker_type in worker_types_set:
+            copy_of_template_config = WORKERS_CONFIG[worker_type].copy()
+
+            # Merge worker type template configuration data. It's a combination of lists
+            # and dicts, so use this helper.
+            worker_config = merge_worker_template_configs(
+                worker_config, copy_of_template_config
+            )
+
+        # Replace placeholder names in the config template with the actual worker name.
+        worker_config = insert_worker_name_for_worker_config(worker_config, worker_name)
 
-        # Name workers by their type concatenated with an incrementing number
-        # e.g. federation_reader1
-        worker_name = worker_type + str(new_worker_count)
         worker_config.update(
             {"name": worker_name, "port": str(worker_port), "config_path": config_path}
         )
 
-        # Update the shared config with any worker-type specific options
-        shared_config.update(worker_config["shared_extra_conf"])
+        # Update the shared config with any worker_type specific options. The first of a
+        # given worker_type needs to stay assigned and not be replaced.
+        worker_config["shared_extra_conf"].update(shared_config)
+        shared_config = worker_config["shared_extra_conf"]
 
         healthcheck_urls.append("http://localhost:%d/health" % (worker_port,))
 
-        # Check if more than one instance of this worker type has been specified
-        worker_type_total_count = worker_types.count(worker_type)
-
         # Update the shared config with sharding-related options if necessary
         add_worker_roles_to_shared_config(
-            shared_config, worker_type, worker_name, worker_port
+            shared_config, worker_types_set, worker_name, worker_port
         )
 
         # Enable the worker in supervisord
         worker_descriptors.append(worker_config)
 
-        # Add nginx location blocks for this worker's endpoints (if any are defined)
-        for pattern in worker_config["endpoint_patterns"]:
-            # Determine whether we need to load-balance this worker
-            if worker_type_total_count > 1:
-                # Create or add to a load-balanced upstream for this worker
-                nginx_upstreams.setdefault(worker_type, set()).add(worker_port)
-
-                # Upstreams are named after the worker_type
-                upstream = "http://" + worker_type
-            else:
-                upstream = "http://localhost:%d" % (worker_port,)
-
-            # Note that this endpoint should proxy to this upstream
-            nginx_locations[pattern] = upstream
-
         # Write out the worker's logging config file
-
         log_config_filepath = generate_worker_log_config(environ, worker_name, data_dir)
 
         # Then a worker config file
@@ -539,6 +822,10 @@ def generate_worker_files(
             worker_log_config_filepath=log_config_filepath,
         )
 
+        # Save this worker's port number to the correct nginx upstreams
+        for worker_type in worker_types_set:
+            nginx_upstreams.setdefault(worker_type, set()).add(worker_port)
+
         worker_port += 1
 
     # Build the nginx location config blocks
@@ -551,15 +838,14 @@ def generate_worker_files(
 
     # Determine the load-balancing upstreams to configure
     nginx_upstream_config = ""
-
-    for upstream_worker_type, upstream_worker_ports in nginx_upstreams.items():
+    for upstream_worker_base_name, upstream_worker_ports in nginx_upstreams.items():
         body = ""
         for port in upstream_worker_ports:
-            body += "    server localhost:%d;\n" % (port,)
+            body += f"    server localhost:{port};\n"
 
         # Add to the list of configured upstreams
         nginx_upstream_config += NGINX_UPSTREAM_CONFIG_BLOCK.format(
-            upstream_worker_type=upstream_worker_type,
+            upstream_worker_base_name=upstream_worker_base_name,
             body=body,
         )
 
@@ -580,7 +866,7 @@ def generate_worker_files(
             if reg_path.suffix.lower() in (".yaml", ".yml")
         ]
 
-    workers_in_use = len(worker_types) > 0
+    workers_in_use = len(requested_worker_types) > 0
 
     # Shared homeserver config
     convert(
@@ -678,13 +964,26 @@ def main(args: List[str], environ: MutableMapping[str, str]) -> None:
         generate_base_homeserver_config()
     else:
         log("Base homeserver config exists—not regenerating")
-    # This script may be run multiple times (mostly by Complement, see note at top of file).
-    # Don't re-configure workers in this instance.
+    # This script may be run multiple times (mostly by Complement, see note at top of
+    # file). Don't re-configure workers in this instance.
     mark_filepath = "/conf/workers_have_been_configured"
     if not os.path.exists(mark_filepath):
+        # Collect and validate worker_type requests
+        # Read the desired worker configuration from the environment
+        worker_types_env = environ.get("SYNAPSE_WORKER_TYPES", "").strip()
+        # Only process worker_types if they exist
+        if not worker_types_env:
+            # No workers, just the main process
+            worker_types = []
+            requested_worker_types: Dict[str, Any] = {}
+        else:
+            # Split type names by comma, ignoring whitespace.
+            worker_types = split_and_strip_string(worker_types_env, ",")
+            requested_worker_types = parse_worker_types(worker_types)
+
         # Always regenerate all other config files
         log("Generating worker config files")
-        generate_worker_files(environ, config_path, data_dir)
+        generate_worker_files(environ, config_path, data_dir, requested_worker_types)
 
         # Mark workers as being configured
         with open(mark_filepath, "w") as f:

docs/setup/installation.md

@@ -26,8 +26,8 @@ for most users.
 #### Docker images and Ansible playbooks
 
 There is an official synapse image available at
-<https://hub.docker.com/r/matrixdotorg/synapse> which can be used with
-the docker-compose file available at
+<https://hub.docker.com/r/matrixdotorg/synapse> or at [`ghcr.io/matrix-org/synapse`](https://ghcr.io/matrix-org/synapse)
+which can be used with the docker-compose file available at
 [contrib/docker](https://github.com/matrix-org/synapse/tree/develop/contrib/docker).
 Further information on this including configuration options is available in the README
 on hub.docker.com.

docs/tcp_replication.md

@@ -25,7 +25,7 @@ position of all streams. The server then periodically sends `RDATA` commands
 which have the format `RDATA <stream_name> <instance_name> <token> <row>`, where
 the format of `<row>` is defined by the individual streams. The
 `<instance_name>` is the name of the Synapse process that generated the data
-(usually "master").
+(usually "master"). We expect an RDATA for every row in the DB.
 
 Error reporting happens by either the client or server sending an ERROR
 command, and usually the connection will be closed.
@@ -107,7 +107,7 @@ reconnect, following the steps above.
 If the server sends messages faster than the client can consume them the
 server will first buffer a (fairly large) number of commands and then
 disconnect the client. This ensures that we don't queue up an unbounded
-number of commands in memory and gives us a potential oppurtunity to
+number of commands in memory and gives us a potential opportunity to
 squawk loudly. When/if the client recovers it can reconnect to the
 server and ask for missed messages.
 
@@ -122,7 +122,7 @@ since these include tokens which can be used to restart the stream on
 connection errors.
 
 The client should keep track of the token in the last RDATA command
-received for each stream so that on reconneciton it can start streaming
+received for each stream so that on reconnection it can start streaming
 from the correct place. Note: not all RDATA have valid tokens due to
 batching. See `RdataCommand` for more details.
 
@@ -188,7 +188,8 @@ client (C):
    Two positions are included, the "new" position and the last position sent respectively.
    This allows servers to tell instances that the positions have advanced but no
    data has been written, without clients needlessly checking to see if they
-   have missed any updates.
+   have missed any updates. Instances will only fetch stuff if there is a gap between
+   their current position and the given last position.
 
 #### ERROR (S, C)
 

docs/upgrade.md

@@ -88,6 +88,34 @@ process, for example:
     dpkg -i matrix-synapse-py3_1.3.0+stretch1_amd64.deb
     ```
 
+# Upgrading to v1.81.0
+
+## Application service path & authentication deprecations
+
+Synapse now attempts the versioned appservice paths before falling back to the
+[legacy paths](https://spec.matrix.org/v1.6/application-service-api/#legacy-routes).
+Usage of the legacy routes should be considered deprecated.
+
+Additionally, Synapse has supported sending the application service access token
+via [the `Authorization` header](https://spec.matrix.org/v1.6/application-service-api/#authorization)
+since v1.70.0. For backwards compatibility it is *also* sent as the `access_token`
+query parameter. This is insecure and should be considered deprecated.
+
+A future version of Synapse (v1.88.0 or later) will remove support for legacy
+application service routes and query parameter authorization.
+
+# Upgrading to v1.80.0
+
+## Reporting events error code change
+
+Before this update, the
+[`POST /_matrix/client/v3/rooms/{roomId}/report/{eventId}`](https://spec.matrix.org/v1.6/client-server-api/#post_matrixclientv3roomsroomidreporteventid)
+endpoint would return a `403` if a user attempted to report an event that they did not have access to.
+This endpoint will now return a `404` in this case instead.
+
+Clients that implement event reporting should check that their error handling code will handle this
+change.
+
 # Upgrading to v1.79.0
 
 ## The `on_threepid_bind` module callback method has been deprecated
@@ -171,6 +199,17 @@ Docker images and Debian packages need nothing specific as they already
 include or specify ICU as an explicit dependency.
 
 
+## User directory rebuild
+
+Synapse 1.74 queues a background update
+[to rebuild the user directory](https://github.com/matrix-org/synapse/pull/14643),
+in order to fix missing or erroneous entries.
+
+When this update begins, the user directory will be cleared out and rebuilt from
+scratch. User directory lookups will be incomplete until the rebuild completes.
+Admins can monitor the rebuild's progress by using the
+[Background update Admin API](usage/administration/admin_api/background_updates.md#status).
+
 # Upgrading to v1.73.0
 
 ## Legacy Prometheus metric names have now been removed

docs/usage/configuration/config_documentation.md

@@ -1521,7 +1521,7 @@ This option specifies several limits for login:
       address. Defaults to `per_second: 0.003`, `burst_count: 5`.
 
 * `account` ratelimits login requests based on the account the
-  client is attempting to log into. Defaults to `per_second: 0.03`,
+  client is attempting to log into. Defaults to `per_second: 0.003`,
   `burst_count: 5`.
 
 * `failed_attempts` ratelimits login requests based on the account the
@@ -3100,6 +3100,11 @@ Options for each entry include:
    match a pre-existing account instead of failing. This could be used if
    switching from password logins to OIDC. Defaults to false.
 
+* `enable_registration`: set to 'false' to disable automatic registration of new
+   users. This allows the OIDC SSO flow to be limited to sign in only, rather than
+   automatically registering users that have a valid SSO login but do not have
+   a pre-registered account. Defaults to true.
+
 * `user_mapping_provider`: Configuration for how attributes returned from a OIDC
    provider are mapped onto a matrix user. This setting has the following
    sub-properties:
@@ -3216,6 +3221,7 @@ oidc_providers:
     userinfo_endpoint: "https://accounts.example.com/userinfo"
     jwks_uri: "https://accounts.example.com/.well-known/jwks.json"
     skip_verification: true
+    enable_registration: true
     user_mapping_provider:
       config:
         subject_claim: "id"

docs/workers.md

@@ -231,6 +231,7 @@ information.
     ^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/event/
     ^/_matrix/client/(api/v1|r0|v3|unstable)/joined_rooms$
     ^/_matrix/client/v1/rooms/.*/timestamp_to_event$
+    ^/_matrix/client/(api/v1|r0|v3|unstable/.*)/rooms/.*/aliases
     ^/_matrix/client/(api/v1|r0|v3|unstable)/search$
     ^/_matrix/client/(r0|v3|unstable)/user/.*/filter(/|$)
 
@@ -244,7 +245,9 @@ information.
     # Registration/login requests
     ^/_matrix/client/(api/v1|r0|v3|unstable)/login$
     ^/_matrix/client/(r0|v3|unstable)/register$
+    ^/_matrix/client/(r0|v3|unstable)/register/available$
     ^/_matrix/client/v1/register/m.login.registration_token/validity$
+    ^/_matrix/client/(r0|v3|unstable)/password_policy$
 
     # Event sending requests
     ^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/redact

mypy.ini

@@ -48,9 +48,6 @@ warn_unused_ignores = False
 [mypy-synapse.util.caches.treecache]
 disallow_untyped_defs = False
 
-[mypy-synapse.storage.database]
-disallow_untyped_defs = False
-
 [mypy-tests.util.caches.test_descriptors]
 disallow_untyped_defs = False
 
@@ -74,11 +71,6 @@ ignore_missing_imports = True
 [mypy-msgpack]
 ignore_missing_imports = True
 
-# Note: WIP stubs available at
-# https://github.com/microsoft/python-type-stubs/tree/64934207f523ad6b611e6cfe039d85d7175d7d0d/netaddr
-[mypy-netaddr]
-ignore_missing_imports = True
-
 [mypy-parameterized.*]
 ignore_missing_imports = True
 

pyproject.toml

@@ -89,7 +89,7 @@ manifest-path = "rust/Cargo.toml"
 
 [tool.poetry]
 name = "matrix-synapse"
-version = "1.79.0rc2"
+version = "1.81.0rc1"
 description = "Homeserver for the Matrix decentralised comms protocol"
 authors = ["Matrix.org Team and Contributors <packages@matrix.org>"]
 license = "Apache-2.0"
@@ -153,15 +153,13 @@ python = "^3.7.1"
 # ----------------------
 # we use the TYPE_CHECKER.redefine method added in jsonschema 3.0.0
 jsonschema = ">=3.0.0"
-# frozendict 2.1.2 is broken on Debian 10: https://github.com/Marco-Sulla/python-frozendict/issues/41
-# We cannot test our wheels against the 2.3.5 release in CI. Putting in an upper bound for this
-# because frozendict has been more trouble than it's worth; we would like to move to immutabledict.
-frozendict = ">=1,!=2.1.2,<2.3.5"
+# We choose 2.0 as a lower bound: the most recent backwards incompatible release.
+# It seems generally available, judging by https://pkgs.org/search/?q=immutabledict
+immutabledict = ">=2.0"
 # We require 2.1.0 or higher for type hints. Previous guard was >= 1.1.0
 unpaddedbase64 = ">=2.1.0"
-# We require 1.5.0 to work around an issue when running against the C implementation of
-# frozendict: https://github.com/matrix-org/python-canonicaljson/issues/36
-canonicaljson = "^1.5.0"
+# We require 2.0.0 for immutabledict support.
+canonicaljson = "^2.0.0"
 # we use the type definitions added in signedjson 1.1.
 signedjson = "^1.1.0"
 # validating SSL certs for IP addresses requires service_identity 18.1.
@@ -313,7 +311,7 @@ all = [
 # We pin black so that our tests don't start failing on new releases.
 isort = ">=5.10.1"
 black = ">=22.3.0"
-ruff = "0.0.252"
+ruff = "0.0.259"
 
 # Typechecking
 mypy = "*"
@@ -321,6 +319,7 @@ mypy-zope = "*"
 types-bleach = ">=4.1.0"
 types-commonmark = ">=0.9.2"
 types-jsonschema = ">=3.2.0"
+types-netaddr = ">=0.8.0.6"
 types-opentracing = ">=2.4.2"
 types-Pillow = ">=8.3.4"
 types-psycopg2 = ">=2.9.9"
@@ -351,6 +350,18 @@ towncrier = ">=18.6.0rc1"
 # Used for checking the Poetry lockfile
 tomli = ">=1.2.3"
 
+
+# Dependencies for building the development documentation
+[tool.poetry.group.dev-docs]
+optional = true
+
+[tool.poetry.group.dev-docs.dependencies]
+sphinx = {version = "^6.1", python = "^3.8"}
+sphinx-autodoc2 = {version = "^0.4.2", python = "^3.8"}
+myst-parser = {version = "^1.0.0", python = "^3.8"}
+furo = ">=2022.12.7,<2024.0.0"
+
+
 [build-system]
 # The upper bounds here are defensive, intended to prevent situations like
 # #13849 and #14079 where we see buildtime or runtime errors caused by build

requirements.txt

@@ -0,0 +1,934 @@
+attrs==22.2.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:29e95c7f6778868dbd49170f98f8818f78f3dc5e0e37c0b1f474e3561b240836 \
+    --hash=sha256:c9227bfc2f01993c03f68db37d1d15c9690188323c067c641f1a35ca58185f99
+authlib==1.2.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:4ddf4fd6cfa75c9a460b361d4bd9dac71ffda0be879dbe4292a02e92349ad55a \
+    --hash=sha256:4fa3e80883a5915ef9f5bc28630564bc4ed5b5af39812a3ff130ec76bd631e9d
+automat==22.10.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:c3164f8742b9dc440f3682482d32aaff7bb53f71740dd018533f9de286b64180 \
+    --hash=sha256:e56beb84edad19dcc11d30e8d9b895f75deeb5ef5e96b84a467066b3b84bb04e
+bcrypt==4.0.1 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:089098effa1bc35dc055366740a067a2fc76987e8ec75349eb9484061c54f535 \
+    --hash=sha256:08d2947c490093a11416df18043c27abe3921558d2c03e2076ccb28a116cb6d0 \
+    --hash=sha256:0eaa47d4661c326bfc9d08d16debbc4edf78778e6aaba29c1bc7ce67214d4410 \
+    --hash=sha256:27d375903ac8261cfe4047f6709d16f7d18d39b1ec92aaf72af989552a650ebd \
+    --hash=sha256:2b3ac11cf45161628f1f3733263e63194f22664bf4d0c0f3ab34099c02134665 \
+    --hash=sha256:2caffdae059e06ac23fce178d31b4a702f2a3264c20bfb5ff541b338194d8fab \
+    --hash=sha256:3100851841186c25f127731b9fa11909ab7b1df6fc4b9f8353f4f1fd952fbf71 \
+    --hash=sha256:5ad4d32a28b80c5fa6671ccfb43676e8c1cc232887759d1cd7b6f56ea4355215 \
+    --hash=sha256:67a97e1c405b24f19d08890e7ae0c4f7ce1e56a712a016746c8b2d7732d65d4b \
+    --hash=sha256:705b2cea8a9ed3d55b4491887ceadb0106acf7c6387699fca771af56b1cdeeda \
+    --hash=sha256:8a68f4341daf7522fe8d73874de8906f3a339048ba406be6ddc1b3ccb16fc0d9 \
+    --hash=sha256:a522427293d77e1c29e303fc282e2d71864579527a04ddcfda6d4f8396c6c36a \
+    --hash=sha256:ae88eca3024bb34bb3430f964beab71226e761f51b912de5133470b649d82344 \
+    --hash=sha256:b1023030aec778185a6c16cf70f359cbb6e0c289fd564a7cfa29e727a1c38f8f \
+    --hash=sha256:b3b85202d95dd568efcb35b53936c5e3b3600c7cdcc6115ba461df3a8e89f38d \
+    --hash=sha256:b57adba8a1444faf784394de3436233728a1ecaeb6e07e8c22c8848f179b893c \
+    --hash=sha256:bf4fa8b2ca74381bb5442c089350f09a3f17797829d958fad058d6e44d9eb83c \
+    --hash=sha256:ca3204d00d3cb2dfed07f2d74a25f12fc12f73e606fcaa6975d1f7ae69cacbb2 \
+    --hash=sha256:cbb03eec97496166b704ed663a53680ab57c5084b2fc98ef23291987b525cb7d \
+    --hash=sha256:e9a51bbfe7e9802b5f3508687758b564069ba937748ad7b9e890086290d2f79e \
+    --hash=sha256:fbdaec13c5105f0c4e5c52614d04f0bca5f5af007910daa8b6b12095edaa67b3
+bleach==6.0.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:1a1a85c1595e07d8db14c5f09f09e6433502c51c595970edc090551f0db99414 \
+    --hash=sha256:33c16e3353dbd13028ab4799a0f89a83f113405c766e9c122df8a06f5b85b3f4
+canonicaljson==2.0.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:c38a315de3b5a0532f1ec1f9153cd3d716abfc565a558d00a4835428a34fca5b \
+    --hash=sha256:e2fdaef1d7fadc5d9cb59bd3d0d41b064ddda697809ac4325dced721d12f113f
+certifi==2022.12.7 ; python_full_version >= "3.7.1" and python_version < "4" \
+    --hash=sha256:35824b4c3a97115964b408844d64aa14db1cc518f6562e8d7261699d1350a9e3 \
+    --hash=sha256:4ad3232f5e926d6718ec31cfc1fcadfde020920e278684144551c91769c7bc18
+cffi==1.15.1 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:00a9ed42e88df81ffae7a8ab6d9356b371399b91dbdf0c3cb1e84c03a13aceb5 \
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+    --hash=sha256:d400bfb9a37b1351253cb402671cea7e89bdecc294e8016a707f6d1d8ac934f9 \
+    --hash=sha256:d61f4695e6c866a23a21acab0509af1cdfd2c013cf256bbf5b6b5e2695827162 \
+    --hash=sha256:db0fbb9c62743ce59a9ff687eb5f4afbe77e5e8403d6697f7446e5f609976f76 \
+    --hash=sha256:dd86c085fae2efd48ac91dd7ccffcfc0571387fe1193d33b6394db7ef31fe2a4 \
+    --hash=sha256:e00b098126fd45523dd056d2efba6c5a63b71ffe9f2bbe1a4fe1716e1d0c331e \
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+    --hash=sha256:fcd131dd944808b5bdb38e6f5b53013c5aa4f334c5cad0c72742f6eba4b73db0
+charset-normalizer==3.1.0 ; python_full_version >= "3.7.1" and python_version < "4" \
+    --hash=sha256:04afa6387e2b282cf78ff3dbce20f0cc071c12dc8f685bd40960cc68644cfea6 \
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+    --hash=sha256:e0ac8959c929593fee38da1c2b64ee9778733cdf03c482c9ff1d508b6b593b2b \
+    --hash=sha256:e1b25e3ad6c909f398df8921780d6a3d120d8c09466720226fc621605b6f92b1 \
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+    --hash=sha256:e89df2958e5159b811af9ff0f92614dabf4ff617c03a4c1c6ff53bf1c399e0e1 \
+    --hash=sha256:ea9f9c6034ea2d93d9147818f17c2a0860d41b71c38b9ce4d55f21b6f9165a11 \
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+    --hash=sha256:f8303414c7b03f794347ad062c0516cee0e15f7a612abd0ce1e25caf6ceb47df \
+    --hash=sha256:fca62a8301b605b954ad2e9c3666f9d97f63872aa4efcae5492baca2056b74ab
+constantly==15.1.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:586372eb92059873e29eba4f9dec8381541b4d3834660707faf8ba59146dfc35 \
+    --hash=sha256:dd2fa9d6b1a51a83f0d7dd76293d734046aa176e384bf6e33b7e44880eb37c5d
+cryptography==40.0.1 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:0a4e3406cfed6b1f6d6e87ed243363652b2586b2d917b0609ca4f97072994405 \
+    --hash=sha256:1e0af458515d5e4028aad75f3bb3fe7a31e46ad920648cd59b64d3da842e4356 \
+    --hash=sha256:2803f2f8b1e95f614419926c7e6f55d828afc614ca5ed61543877ae668cc3472 \
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+    --hash=sha256:f5d7b79fa56bc29580faafc2ff736ce05ba31feaa9d4735048b0de7d9ceb2b94
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+    --hash=sha256:fd0ca35e2cf44866137cbb5ae7e439fab18a0b0e0e1cf51d45137622d59ec012
+hyperlink==21.0.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:427af957daa58bc909471c6c40f74c5450fa123dd093fc53efd2e91d2705a56b \
+    --hash=sha256:e6b14c37ecb73e89c77d78cdb4c2cc8f3fb59a885c5b3f819ff4ed80f25af1b4
+idna==3.4 ; python_full_version >= "3.7.1" and python_version < "4" \
+    --hash=sha256:814f528e8dead7d329833b91c5faa87d60bf71824cd12a7530b5526063d02cb4 \
+    --hash=sha256:90b77e79eaa3eba6de819a0c442c0b4ceefc341a7a2ab77d7562bf49f425c5c2
+ijson==3.2.0.post0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:00594ed3ef2218fee8c652d9e7f862fb39f8251b67c6379ef12f7e044bf6bbf3 \
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+    --hash=sha256:fe7f414edd69dd9199b0dfffa0ada22f23d8009e10fe2a719e0993b7dcc2e6e2
+immutabledict==2.2.3 ; python_full_version >= "3.7.1" and python_version < "4.0" \
+    --hash=sha256:0e1e8a3f2b3ff062daa19795f947e9ec7a58add269d44e34d3ab4319e1343853 \
+    --hash=sha256:a7b078ebcc4a58ddc73b55f808b26e7c8c2d5183fad325615112689e1a63e714
+importlib-metadata==6.1.0 ; python_full_version >= "3.7.1" and python_version < "3.8" \
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+    --hash=sha256:ff80f3b5394912eb1b108fcfd444dc78b7f1f3e16b16188054bd01cb9cb86f09
+importlib-resources==5.12.0 ; python_full_version >= "3.7.1" and python_version < "3.9" \
+    --hash=sha256:4be82589bf5c1d7999aedf2a45159d10cb3ca4f19b2271f8792bc8e6da7b22f6 \
+    --hash=sha256:7b1deeebbf351c7578e09bf2f63fa2ce8b5ffec296e0d349139d43cca061a81a
+incremental==22.10.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:912feeb5e0f7e0188e6f42241d2f450002e11bbc0937c65865045854c24c0bd0 \
+    --hash=sha256:b864a1f30885ee72c5ac2835a761b8fe8aa9c28b9395cacf27286602688d3e51
+jinja2==3.1.2 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:31351a702a408a9e7595a8fc6150fc3f43bb6bf7e319770cbc0db9df9437e852 \
+    --hash=sha256:6088930bfe239f0e6710546ab9c19c9ef35e29792895fed6e6e31a023a182a61
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+    --hash=sha256:0f864437ab8b6076ba6707453ef8f98a6a0d512a80e93f8abdb676f737ecb60d \
+    --hash=sha256:a870ad254da1a8ca84b6a2905cac29d265f805acc57af304784962a2aa6508f6
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+    --hash=sha256:f49e52d174375a7def9915c9f06ec4e569d235ad428f70751765f48d5926678c
+markupsafe==2.1.2 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:0576fe974b40a400449768941d5d0858cc624e3249dfd1e0c33674e5c7ca7aed \
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+    --hash=sha256:c4a549890a45f57f1ebf99c067a4ad0cb423a05544accaf2b065246827ed9603 \
+    --hash=sha256:ca244fa73f50a800cf8c3ebf7fd93149ec37f5cb9596aa8873ae2c1d23498601 \
+    --hash=sha256:cf877ab4ed6e302ec1d04952ca358b381a882fbd9d1b07cccbfd61783561f98a \
+    --hash=sha256:d9d971ec1e79906046aa3ca266de79eac42f1dbf3612a05dc9368125952bd1a1 \
+    --hash=sha256:da25303d91526aac3672ee6d49a2f3db2d9502a4a60b55519feb1a4c7714e07d \
+    --hash=sha256:e55e40ff0cc8cc5c07996915ad367fa47da6b3fc091fdadca7f5403239c5fec3 \
+    --hash=sha256:f03a532d7dee1bed20bc4884194a16160a2de9ffc6354b3878ec9682bb623c54 \
+    --hash=sha256:f1cd098434e83e656abf198f103a8207a8187c0fc110306691a2e94a78d0abb2 \
+    --hash=sha256:f2bfb563d0211ce16b63c7cb9395d2c682a23187f54c3d79bfec33e6705473c6 \
+    --hash=sha256:f8ffb705ffcf5ddd0e80b65ddf7bed7ee4f5a441ea7d3419e861a12eaf41af58
+matrix-common==1.3.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:524e2785b9b03be4d15f3a8a6b857c5b6af68791ffb1b9918f0ad299abc4db20 \
+    --hash=sha256:62e121cccd9f243417b57ec37a76dc44aeb198a7a5c67afd6b8275992ff2abd1
+msgpack==1.0.5 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:06f5174b5f8ed0ed919da0e62cbd4ffde676a374aba4020034da05fab67b9164 \
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+    --hash=sha256:cb5aaa8c17760909ec6cb15e744c3ebc2ca8918e727216e79607b7bbce9c8f77 \
+    --hash=sha256:cdc793c50be3f01106245a61b739328f7dccc2c648b501e237f0699fe1395b81 \
+    --hash=sha256:d25dd59bbbbb996eacf7be6b4ad082ed7eacc4e8f3d2df1ba43822da9bfa122a \
+    --hash=sha256:e42b9594cc3bf4d838d67d6ed62b9e59e201862a25e9a157019e171fbe672dd3 \
+    --hash=sha256:e57916ef1bd0fee4f21c4600e9d1da352d8816b52a599c46460e93a6e9f17086 \
+    --hash=sha256:ed40e926fa2f297e8a653c954b732f125ef97bdd4c889f243182299de27e2aa9 \
+    --hash=sha256:ef8108f8dedf204bb7b42994abf93882da1159728a2d4c5e82012edd92c9da9f \
+    --hash=sha256:f933bbda5a3ee63b8834179096923b094b76f0c7a73c1cfe8f07ad608c58844b \
+    --hash=sha256:fe5c63197c55bce6385d9aee16c4d0641684628f63ace85f73571e65ad1c1e8d
+netaddr==0.8.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:9666d0232c32d2656e5e5f8d735f58fd6c7457ce52fc21c98d45f2af78f990ac \
+    --hash=sha256:d6cc57c7a07b1d9d2e917aa8b36ae8ce61c35ba3fcd1b83ca31c5a0ee2b5a243
+packaging==23.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:714ac14496c3e68c99c29b00845f7a2b85f3bb6f1078fd9f72fd20f0570002b2 \
+    --hash=sha256:b6ad297f8907de0fa2fe1ccbd26fdaf387f5f47c7275fedf8cce89f99446cf97
+parameterized==0.8.1 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:41bbff37d6186430f77f900d777e5bb6a24928a1c46fb1de692f8b52b8833b5c \
+    --hash=sha256:9cbb0b69a03e8695d68b3399a8a5825200976536fe1cb79db60ed6a4c8c9efe9
+phonenumbers==8.13.7 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:253bb0e01250d21a11f2b42b3e6e161b7f6cb2ac440e2e2a95c1da71d221ee1a \
+    --hash=sha256:d3e3555b38c89b121f5b2e917847003bdd07027569d758d5f40156c01aeac089
+pillow==9.4.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:013016af6b3a12a2f40b704677f8b51f72cb007dac785a9933d5c86a72a7fe33 \
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+    --hash=sha256:fb5c1ad6bad98c57482236a21bf985ab0ef42bd51f7ad4e4538e89a997624e12
+pkgutil-resolve-name==1.3.10 ; python_full_version >= "3.7.1" and python_version < "3.9" \
+    --hash=sha256:357d6c9e6a755653cfd78893817c0853af365dd51ec97f3d358a819373bbd174 \
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+prometheus-client==0.16.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:0836af6eb2c8f4fed712b2f279f6c0a8bbab29f9f4aa15276b91c7cb0d1616ab \
+    --hash=sha256:a03e35b359f14dd1630898543e2120addfdeacd1a6069c1367ae90fd93ad3f48
+psycopg2==2.9.5 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:093e3894d2d3c592ab0945d9eba9d139c139664dcf83a1c440b8a7aa9bb21955 \
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+psycopg2cffi-compat==1.1 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" and platform_python_implementation == "PyPy" \
+    --hash=sha256:d25e921748475522b33d13420aad5c2831c743227dc1f1f2585e0fdb5c914e05
+psycopg2cffi==2.9.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" and platform_python_implementation == "PyPy" \
+    --hash=sha256:7e272edcd837de3a1d12b62185eb85c45a19feda9e62fa1b120c54f9e8d35c52
+pyasn1-modules==0.2.8 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:905f84c712230b2c592c19470d3ca8d552de726050d1d1716282a1f6146be65e \
+    --hash=sha256:a50b808ffeb97cb3601dd25981f6b016cbb3d31fbf57a8b8a87428e6158d0c74
+pyasn1==0.4.8 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:39c7e2ec30515947ff4e87fb6f456dfc6e84857d34be479c9d4a4ba4bf46aa5d \
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+pycparser==2.21 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:8ee45429555515e1f6b185e78100aea234072576aa43ab53aefcae078162fca9 \
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+pydantic==1.10.7 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:01aea3a42c13f2602b7ecbbea484a98169fb568ebd9e247593ea05f01b884b2e \
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+pymacaroons==0.13.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:1e6bba42a5f66c245adf38a5a4006a99dcc06a0703786ea636098667d42903b8 \
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+pynacl==1.5.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:06b8f6fa7f5de8d5d2f7573fe8c863c051225a27b61e6860fd047b1775807858 \
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+pyopenssl==23.1.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:8cb78010a1eb2c8e24b851693b7b04dfe9b1dc0a5ab3843927b10a85b1dfbb2e \
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+pyrsistent==0.19.3 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:016ad1afadf318eb7911baa24b049909f7f3bb2c5b1ed7b6a8f21db21ea3faa8 \
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+pyyaml==6.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:01b45c0191e6d66c470b6cf1b9531a771a83c1c4208272ead47a3ae4f2f603bf \
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+    --hash=sha256:f84fbc98b019fef2ee9a1cb3ce93e3187a6df0b2538a651bfb890254ba9f90b5
+requests==2.28.2 ; python_full_version >= "3.7.1" and python_version < "4" \
+    --hash=sha256:64299f4909223da747622c030b781c0d7811e359c37124b4bd368fb8c6518baa \
+    --hash=sha256:98b1b2782e3c6c4904938b84c0eb932721069dfdb9134313beff7c83c2df24bf
+semantic-version==2.10.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:bdabb6d336998cbb378d4b9db3a4b56a1e3235701dc05ea2690d9a997ed5041c \
+    --hash=sha256:de78a3b8e0feda74cabc54aab2da702113e33ac9d9eb9d2389bcf1f58b7d9177
+service-identity==21.1.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:6e6c6086ca271dc11b033d17c3a8bea9f24ebff920c587da090afc9519419d34 \
+    --hash=sha256:f0b0caac3d40627c3c04d7a51b6e06721857a0e10a8775f2d1d7e72901b3a7db
+setuptools-rust==1.5.2 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:8eb45851e34288f2296cd5ab9e924535ac1757318b730a13fe6836867843f206 \
+    --hash=sha256:d8daccb14dc0eae1b6b6eb3ecef79675bd37b4065369f79c35393dd5c55652c7
+setuptools==67.6.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:2ee892cd5f29f3373097f5a814697e397cf3ce313616df0af11231e2ad118077 \
+    --hash=sha256:b78aaa36f6b90a074c1fa651168723acbf45d14cb1196b6f02c0fd07f17623b2
+signedjson==1.1.4 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:45569ec54241c65d2403fe3faf7169be5322547706a231e884ca2b427f23d228 \
+    --hash=sha256:cd91c56af53f169ef032c62e9c4a3292dc158866933318d0592e3462db3d6492
+six==1.16.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926 \
+    --hash=sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254
+sortedcontainers==2.4.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:25caa5a06cc30b6b83d11423433f65d1f9d76c4c6a0c90e3379eaa43b9bfdb88 \
+    --hash=sha256:a163dcaede0f1c021485e957a39245190e74249897e2ae4b2aa38595db237ee0
+treq==22.2.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:27d95b07c5c14be3e7b280416139b036087617ad5595be913b1f9b3ce981b9b2 \
+    --hash=sha256:df757e3f141fc782ede076a604521194ffcb40fa2645cf48e5a37060307f52ec
+twisted-iocpsupport==1.0.2 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" and platform_system == "Windows" \
+    --hash=sha256:306becd6e22ab6e8e4f36b6bdafd9c92e867c98a5ce517b27fdd27760ee7ae41 \
+    --hash=sha256:3c61742cb0bc6c1ac117a7e5f422c129832f0c295af49e01d8a6066df8cfc04d \
+    --hash=sha256:72068b206ee809c9c596b57b5287259ea41ddb4774d86725b19f35bf56aa32a9 \
+    --hash=sha256:7d972cfa8439bdcb35a7be78b7ef86d73b34b808c74be56dfa785c8a93b851bf \
+    --hash=sha256:81b3abe3527b367da0220482820cb12a16c661672b7bcfcde328902890d63323 \
+    --hash=sha256:851b3735ca7e8102e661872390e3bce88f8901bece95c25a0c8bb9ecb8a23d32 \
+    --hash=sha256:985c06a33f5c0dae92c71a036d1ea63872ee86a21dd9b01e1f287486f15524b4 \
+    --hash=sha256:9dbb8823b49f06d4de52721b47de4d3b3026064ef4788ce62b1a21c57c3fff6f \
+    --hash=sha256:b435857b9efcbfc12f8c326ef0383f26416272260455bbca2cd8d8eca470c546 \
+    --hash=sha256:b76b4eed9b27fd63ddb0877efdd2d15835fdcb6baa745cb85b66e5d016ac2878 \
+    --hash=sha256:b9fed67cf0f951573f06d560ac2f10f2a4bbdc6697770113a2fc396ea2cb2565 \
+    --hash=sha256:bf4133139d77fc706d8f572e6b7d82871d82ec7ef25d685c2351bdacfb701415
+twisted==22.10.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:32acbd40a94f5f46e7b42c109bfae2b302250945561783a8b7a059048f2d4d31 \
+    --hash=sha256:86c55f712cc5ab6f6d64e02503352464f0400f66d4f079096d744080afcccbd0
+twisted[tls]==22.10.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:32acbd40a94f5f46e7b42c109bfae2b302250945561783a8b7a059048f2d4d31 \
+    --hash=sha256:86c55f712cc5ab6f6d64e02503352464f0400f66d4f079096d744080afcccbd0
+txredisapi==1.4.9 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:72e6ad09cc5fffe3bec2e55e5bfb74407bd357565fc212e6003f7e26ef7d8f78 \
+    --hash=sha256:c9607062d05e4d0b8ef84719eb76a3fe7d5ccd606a2acf024429da51d6e84559
+typing-extensions==4.5.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:5cb5f4a79139d699607b3ef622a1dedafa84e115ab0024e0d9c044a9479ca7cb \
+    --hash=sha256:fb33085c39dd998ac16d1431ebc293a8b3eedd00fd4a32de0ff79002c19511b4
+unpaddedbase64==2.1.0 ; python_full_version >= "3.7.1" and python_version < "4.0" \
+    --hash=sha256:485eff129c30175d2cd6f0cd8d2310dff51e666f7f36175f738d75dfdbd0b1c6 \
+    --hash=sha256:7273c60c089de39d90f5d6d4a7883a79e319dc9d9b1c8924a7fab96178a5f005
+urllib3==1.26.15 ; python_full_version >= "3.7.1" and python_version < "4" \
+    --hash=sha256:8a388717b9476f934a21484e8c8e61875ab60644d29b9b39e11e4b9dc1c6b305 \
+    --hash=sha256:aa751d169e23c7479ce47a0cb0da579e3ede798f994f5816a74e4f4500dcea42
+webencodings==0.5.1 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78 \
+    --hash=sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923
+zipp==3.15.0 ; python_full_version >= "3.7.1" and python_version < "3.9" \
+    --hash=sha256:112929ad649da941c23de50f356a2b5570c954b65150642bccdd66bf194d224b \
+    --hash=sha256:48904fc76a60e542af151aded95726c1a5c34ed43ab4134b597665c86d7ad556
+zope-interface==6.0 ; python_full_version >= "3.7.1" and python_full_version < "4.0.0" \
+    --hash=sha256:042f2381118b093714081fd82c98e3b189b68db38ee7d35b63c327c470ef8373 \
+    --hash=sha256:0ec9653825f837fbddc4e4b603d90269b501486c11800d7c761eee7ce46d1bbb \
+    --hash=sha256:12175ca6b4db7621aedd7c30aa7cfa0a2d65ea3a0105393e05482d7a2d367446 \
+    --hash=sha256:1592f68ae11e557b9ff2bc96ac8fc30b187e77c45a3c9cd876e3368c53dc5ba8 \
+    --hash=sha256:23ac41d52fd15dd8be77e3257bc51bbb82469cf7f5e9a30b75e903e21439d16c \
+    --hash=sha256:424d23b97fa1542d7be882eae0c0fc3d6827784105264a8169a26ce16db260d8 \
+    --hash=sha256:4407b1435572e3e1610797c9203ad2753666c62883b921318c5403fb7139dec2 \
+    --hash=sha256:48f4d38cf4b462e75fac78b6f11ad47b06b1c568eb59896db5b6ec1094eb467f \
+    --hash=sha256:4c3d7dfd897a588ec27e391edbe3dd320a03684457470415870254e714126b1f \
+    --hash=sha256:5171eb073474a5038321409a630904fd61f12dd1856dd7e9d19cd6fe092cbbc5 \
+    --hash=sha256:5a158846d0fca0a908c1afb281ddba88744d403f2550dc34405c3691769cdd85 \
+    --hash=sha256:6ee934f023f875ec2cfd2b05a937bd817efcc6c4c3f55c5778cbf78e58362ddc \
+    --hash=sha256:790c1d9d8f9c92819c31ea660cd43c3d5451df1df61e2e814a6f99cebb292788 \
+    --hash=sha256:809fe3bf1a91393abc7e92d607976bbb8586512913a79f2bf7d7ec15bd8ea518 \
+    --hash=sha256:87b690bbee9876163210fd3f500ee59f5803e4a6607d1b1238833b8885ebd410 \
+    --hash=sha256:89086c9d3490a0f265a3c4b794037a84541ff5ffa28bb9c24cc9f66566968464 \
+    --hash=sha256:99856d6c98a326abbcc2363827e16bd6044f70f2ef42f453c0bd5440c4ce24e5 \
+    --hash=sha256:aab584725afd10c710b8f1e6e208dbee2d0ad009f57d674cb9d1b3964037275d \
+    --hash=sha256:af169ba897692e9cd984a81cb0f02e46dacdc07d6cf9fd5c91e81f8efaf93d52 \
+    --hash=sha256:b39b8711578dcfd45fc0140993403b8a81e879ec25d53189f3faa1f006087dca \
+    --hash=sha256:b3f543ae9d3408549a9900720f18c0194ac0fe810cecda2a584fd4dca2eb3bb8 \
+    --hash=sha256:d0583b75f2e70ec93f100931660328965bb9ff65ae54695fb3fa0a1255daa6f2 \
+    --hash=sha256:dfbbbf0809a3606046a41f8561c3eada9db811be94138f42d9135a5c47e75f6f \
+    --hash=sha256:e538f2d4a6ffb6edfb303ce70ae7e88629ac6e5581870e66c306d9ad7b564a58 \
+    --hash=sha256:eba51599370c87088d8882ab74f637de0c4f04a6d08a312dce49368ba9ed5c2a \
+    --hash=sha256:ee4b43f35f5dc15e1fec55ccb53c130adb1d11e8ad8263d68b1284b66a04190d \
+    --hash=sha256:f2363e5fd81afb650085c6686f2ee3706975c54f331b426800b53531191fdf28 \
+    --hash=sha256:f299c020c6679cb389814a3b81200fe55d428012c5e76da7e722491f5d205990 \
+    --hash=sha256:f72f23bab1848edb7472309e9898603141644faec9fd57a823ea6b4d1c4c8995 \
+    --hash=sha256:fa90bac61c9dc3e1a563e5babb3fd2c0c1c80567e815442ddbe561eadc803b30

rust/benches/evaluator.rs

@@ -52,7 +52,6 @@ fn bench_match_exact(b: &mut Bencher) {
         true,
         vec![],
         false,
-        false,
     )
     .unwrap();
 
@@ -98,7 +97,6 @@ fn bench_match_word(b: &mut Bencher) {
         true,
         vec![],
         false,
-        false,
     )
     .unwrap();
 
@@ -144,7 +142,6 @@ fn bench_match_word_miss(b: &mut Bencher) {
         true,
         vec![],
         false,
-        false,
     )
     .unwrap();
 
@@ -190,7 +187,6 @@ fn bench_eval_message(b: &mut Bencher) {
         true,
         vec![],
         false,
-        false,
     )
     .unwrap();
 

rust/src/push/base_rules.rs

@@ -71,7 +71,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
         priority_class: 5,
         conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
             EventMatchCondition {
-                key: Cow::Borrowed("content.m.relates_to.rel_type"),
+                key: Cow::Borrowed("content.m\\.relates_to.rel_type"),
                 pattern: Cow::Borrowed("m.replace"),
             },
         ))]),
@@ -146,7 +146,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
         priority_class: 5,
         conditions: Cow::Borrowed(&[Condition::Known(
             KnownCondition::ExactEventPropertyContainsType(EventPropertyIsTypeCondition {
-                key: Cow::Borrowed("content.org.matrix.msc3952.mentions.user_ids"),
+                key: Cow::Borrowed("content.org\\.matrix\\.msc3952\\.mentions.user_ids"),
                 value_type: Cow::Borrowed(&EventMatchPatternType::UserId),
             }),
         )]),
@@ -167,7 +167,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
         priority_class: 5,
         conditions: Cow::Borrowed(&[
             Condition::Known(KnownCondition::EventPropertyIs(EventPropertyIsCondition {
-                key: Cow::Borrowed("content.org.matrix.msc3952.mentions.room"),
+                key: Cow::Borrowed("content.org\\.matrix\\.msc3952\\.mentions.room"),
                 value: Cow::Borrowed(&SimpleJsonValue::Bool(true)),
             })),
             Condition::Known(KnownCondition::SenderNotificationPermission {

rust/src/push/evaluator.rs

@@ -96,9 +96,6 @@ pub struct PushRuleEvaluator {
     /// If MSC3931 (room version feature flags) is enabled. Usually controlled by the same
     /// flag as MSC1767 (extensible events core).
     msc3931_enabled: bool,
-
-    /// If MSC3966 (exact_event_property_contains push rule condition) is enabled.
-    msc3966_exact_event_property_contains: bool,
 }
 
 #[pymethods]
@@ -116,7 +113,6 @@ impl PushRuleEvaluator {
         related_event_match_enabled: bool,
         room_version_feature_flags: Vec<String>,
         msc3931_enabled: bool,
-        msc3966_exact_event_property_contains: bool,
     ) -> Result<Self, Error> {
         let body = match flattened_keys.get("content.body") {
             Some(JsonValue::Value(SimpleJsonValue::Str(s))) => s.clone(),
@@ -134,7 +130,6 @@ impl PushRuleEvaluator {
             related_event_match_enabled,
             room_version_feature_flags,
             msc3931_enabled,
-            msc3966_exact_event_property_contains,
         })
     }
 
@@ -301,8 +296,8 @@ impl PushRuleEvaluator {
                     Some(Cow::Borrowed(pattern)),
                 )?
             }
-            KnownCondition::ExactEventPropertyContains(event_property_is) => self
-                .match_exact_event_property_contains(
+            KnownCondition::EventPropertyContains(event_property_is) => self
+                .match_event_property_contains(
                     event_property_is.key.clone(),
                     event_property_is.value.clone(),
                 )?,
@@ -321,7 +316,7 @@ impl PushRuleEvaluator {
                     EventMatchPatternType::UserLocalpart => get_localpart_from_id(user_id)?,
                 };
 
-                self.match_exact_event_property_contains(
+                self.match_event_property_contains(
                     exact_event_match.key.clone(),
                     Cow::Borrowed(&SimpleJsonValue::Str(pattern.to_string())),
                 )?
@@ -454,17 +449,12 @@ impl PushRuleEvaluator {
         }
     }
 
-    /// Evaluates a `exact_event_property_contains` condition. (MSC3966)
-    fn match_exact_event_property_contains(
+    /// Evaluates a `event_property_contains` condition.
+    fn match_event_property_contains(
         &self,
         key: Cow<str>,
         value: Cow<SimpleJsonValue>,
     ) -> Result<bool, Error> {
-        // First check if the feature is enabled.
-        if !self.msc3966_exact_event_property_contains {
-            return Ok(false);
-        }
-
         let haystack = if let Some(JsonValue::Array(haystack)) = self.flattened_keys.get(&*key) {
             haystack
         } else {
@@ -515,7 +505,6 @@ fn push_rule_evaluator() {
         true,
         vec![],
         true,
-        true,
     )
     .unwrap();
 
@@ -545,7 +534,6 @@ fn test_requires_room_version_supports_condition() {
         false,
         flags,
         true,
-        true,
     )
     .unwrap();
 

rust/src/push/mod.rs

@@ -337,13 +337,9 @@ pub enum KnownCondition {
     // Identical to related_event_match but gives predefined patterns. Cannot be added by users.
     #[serde(skip_deserializing, rename = "im.nheko.msc3664.related_event_match")]
     RelatedEventMatchType(RelatedEventMatchTypeCondition),
-    #[serde(rename = "org.matrix.msc3966.exact_event_property_contains")]
-    ExactEventPropertyContains(EventPropertyIsCondition),
+    EventPropertyContains(EventPropertyIsCondition),
     // Identical to exact_event_property_contains but gives predefined patterns. Cannot be added by users.
-    #[serde(
-        skip_deserializing,
-        rename = "org.matrix.msc3966.exact_event_property_contains"
-    )]
+    #[serde(skip_deserializing, rename = "event_property_contains")]
     ExactEventPropertyContainsType(EventPropertyIsTypeCondition),
     ContainsDisplayName,
     RoomMemberCount {

scripts-dev/build_debian_packages.py

@@ -28,6 +28,7 @@ DISTS = (
     "ubuntu:focal",  # 20.04 LTS (our EOL forced by Py38 on 2024-10-14)
     "ubuntu:jammy",  # 22.04 LTS (EOL 2027-04)
     "ubuntu:kinetic",  # 22.10 (EOL 2023-07-20)
+    "ubuntu:lunar",  # 23.04 (EOL 2024-01)
 )
 
 DESC = """\

scripts-dev/lint.sh

@@ -91,6 +91,7 @@ else
           "synapse" "docker" "tests"
           "scripts-dev"
           "contrib" "synmark" "stubs" ".ci"
+          "dev-docs"
       )
   fi
 fi

scripts-dev/release.py

@@ -280,7 +280,7 @@ def _prepare() -> None:
     )
 
     print("Opening the changelog in your browser...")
-    print("Please ask others to give it a check.")
+    print("Please ask #synapse-dev to give it a check.")
     click.launch(
         f"https://github.com/matrix-org/synapse/blob/{synapse_repo.active_branch.name}/CHANGES.md"
     )

stubs/frozendict.pyi

@@ -1,39 +0,0 @@
-# Copyright 2020 The Matrix.org Foundation C.I.C.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Stub for frozendict.
-
-from __future__ import annotations
-
-from typing import Any, Hashable, Iterable, Iterator, Mapping, Tuple, TypeVar, overload
-
-_KT = TypeVar("_KT", bound=Hashable)  # Key type.
-_VT = TypeVar("_VT")  # Value type.
-
-class frozendict(Mapping[_KT, _VT]):
-    @overload
-    def __init__(self, **kwargs: _VT) -> None: ...
-    @overload
-    def __init__(self, __map: Mapping[_KT, _VT], **kwargs: _VT) -> None: ...
-    @overload
-    def __init__(
-        self, __iterable: Iterable[Tuple[_KT, _VT]], **kwargs: _VT
-    ) -> None: ...
-    def __getitem__(self, key: _KT) -> _VT: ...
-    def __contains__(self, key: Any) -> bool: ...
-    def copy(self, **add_or_replace: Any) -> frozendict: ...
-    def __iter__(self) -> Iterator[_KT]: ...
-    def __len__(self) -> int: ...
-    def __repr__(self) -> str: ...
-    def __hash__(self) -> int: ...

stubs/synapse/synapse_rust/push.pyi

@@ -65,7 +65,6 @@ class PushRuleEvaluator:
         related_event_match_enabled: bool,
         room_version_feature_flags: Tuple[str, ...],
         msc3931_enabled: bool,
-        msc3966_exact_event_property_contains: bool,
     ): ...
     def run(
         self,

synapse/__init__.py

@@ -17,9 +17,9 @@
 """ This is an implementation of a Matrix homeserver.
 """
 
-import json
 import os
 import sys
+from typing import Any, Dict
 
 from synapse.util.rust import check_rust_lib_up_to_date
 from synapse.util.stringutils import strtobool
@@ -61,11 +61,20 @@ try:
 except ImportError:
     pass
 
-# Use the standard library json implementation instead of simplejson.
+# Teach canonicaljson how to serialise immutabledicts.
 try:
-    from canonicaljson import set_json_library
+    from canonicaljson import register_preserialisation_callback
+    from immutabledict import immutabledict
 
-    set_json_library(json)
+    def _immutabledict_cb(d: immutabledict) -> Dict[str, Any]:
+        try:
+            return d._dict
+        except Exception:
+            # Paranoia: fall back to a `dict()` call, in case a future version of
+            # immutabledict removes `_dict` from the implementation.
+            return dict(d)
+
+    register_preserialisation_callback(immutabledict, _immutabledict_cb)
 except ImportError:
     pass
 

synapse/_scripts/generate_workers_map.py

@@ -0,0 +1,302 @@
+#!/usr/bin/env python
+# Copyright 2022-2023 The Matrix.org Foundation C.I.C.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import argparse
+import logging
+import re
+from collections import defaultdict
+from dataclasses import dataclass
+from typing import Dict, Iterable, Optional, Pattern, Set, Tuple
+
+import yaml
+
+from synapse.config.homeserver import HomeServerConfig
+from synapse.federation.transport.server import (
+    TransportLayerServer,
+    register_servlets as register_federation_servlets,
+)
+from synapse.http.server import HttpServer, ServletCallback
+from synapse.rest import ClientRestResource
+from synapse.rest.key.v2 import RemoteKey
+from synapse.server import HomeServer
+from synapse.storage import DataStore
+
+logger = logging.getLogger("generate_workers_map")
+
+
+class MockHomeserver(HomeServer):
+    DATASTORE_CLASS = DataStore  # type: ignore
+
+    def __init__(self, config: HomeServerConfig, worker_app: Optional[str]) -> None:
+        super().__init__(config.server.server_name, config=config)
+        self.config.worker.worker_app = worker_app
+
+
+GROUP_PATTERN = re.compile(r"\(\?P<[^>]+?>(.+?)\)")
+
+
+@dataclass
+class EndpointDescription:
+    """
+    Describes an endpoint and how it should be routed.
+    """
+
+    # The servlet class that handles this endpoint
+    servlet_class: object
+
+    # The category of this endpoint. Is read from the `CATEGORY` constant in the servlet
+    # class.
+    category: Optional[str]
+
+    # TODO:
+    #  - does it need to be routed based on a stream writer config?
+    #  - does it benefit from any optimised, but optional, routing?
+    #  - what 'opinionated synapse worker class' (event_creator, synchrotron, etc) does
+    #    it go in?
+
+
+class EnumerationResource(HttpServer):
+    """
+    Accepts servlet registrations for the purposes of building up a description of
+    all endpoints.
+    """
+
+    def __init__(self, is_worker: bool) -> None:
+        self.registrations: Dict[Tuple[str, str], EndpointDescription] = {}
+        self._is_worker = is_worker
+
+    def register_paths(
+        self,
+        method: str,
+        path_patterns: Iterable[Pattern],
+        callback: ServletCallback,
+        servlet_classname: str,
+    ) -> None:
+        # federation servlet callbacks are wrapped, so unwrap them.
+        callback = getattr(callback, "__wrapped__", callback)
+
+        # fish out the servlet class
+        servlet_class = callback.__self__.__class__  # type: ignore
+
+        if self._is_worker and method in getattr(
+            servlet_class, "WORKERS_DENIED_METHODS", ()
+        ):
+            # This endpoint would cause an error if called on a worker, so pretend it
+            # was never registered!
+            return
+
+        sd = EndpointDescription(
+            servlet_class=servlet_class,
+            category=getattr(servlet_class, "CATEGORY", None),
+        )
+
+        for pat in path_patterns:
+            self.registrations[(method, pat.pattern)] = sd
+
+
+def get_registered_paths_for_hs(
+    hs: HomeServer,
+) -> Dict[Tuple[str, str], EndpointDescription]:
+    """
+    Given a homeserver, get all registered endpoints and their descriptions.
+    """
+
+    enumerator = EnumerationResource(is_worker=hs.config.worker.worker_app is not None)
+    ClientRestResource.register_servlets(enumerator, hs)
+    federation_server = TransportLayerServer(hs)
+
+    # we can't use `federation_server.register_servlets` but this line does the
+    # same thing, only it uses this enumerator
+    register_federation_servlets(
+        federation_server.hs,
+        resource=enumerator,
+        ratelimiter=federation_server.ratelimiter,
+        authenticator=federation_server.authenticator,
+        servlet_groups=federation_server.servlet_groups,
+    )
+
+    # the key server endpoints are separate again
+    RemoteKey(hs).register(enumerator)
+
+    return enumerator.registrations
+
+
+def get_registered_paths_for_default(
+    worker_app: Optional[str], base_config: HomeServerConfig
+) -> Dict[Tuple[str, str], EndpointDescription]:
+    """
+    Given the name of a worker application and a base homeserver configuration,
+    returns:
+
+        Dict from (method, path) to EndpointDescription
+
+    TODO Don't require passing in a config
+    """
+
+    hs = MockHomeserver(base_config, worker_app)
+    # TODO We only do this to avoid an error, but don't need the database etc
+    hs.setup()
+    return get_registered_paths_for_hs(hs)
+
+
+def elide_http_methods_if_unconflicting(
+    registrations: Dict[Tuple[str, str], EndpointDescription],
+    all_possible_registrations: Dict[Tuple[str, str], EndpointDescription],
+) -> Dict[Tuple[str, str], EndpointDescription]:
+    """
+    Elides HTTP methods (by replacing them with `*`) if all possible registered methods
+    can be handled by the worker whose registration map is `registrations`.
+
+    i.e. the only endpoints left with methods (other than `*`) should be the ones where
+    the worker can't handle all possible methods for that path.
+    """
+
+    def paths_to_methods_dict(
+        methods_and_paths: Iterable[Tuple[str, str]]
+    ) -> Dict[str, Set[str]]:
+        """
+        Given (method, path) pairs, produces a dict from path to set of methods
+        available at that path.
+        """
+        result: Dict[str, Set[str]] = {}
+        for method, path in methods_and_paths:
+            result.setdefault(path, set()).add(method)
+        return result
+
+    all_possible_reg_methods = paths_to_methods_dict(all_possible_registrations)
+    reg_methods = paths_to_methods_dict(registrations)
+
+    output = {}
+
+    for path, handleable_methods in reg_methods.items():
+        if handleable_methods == all_possible_reg_methods[path]:
+            any_method = next(iter(handleable_methods))
+            # TODO This assumes that all methods have the same servlet.
+            #      I suppose that's possibly dubious?
+            output[("*", path)] = registrations[(any_method, path)]
+        else:
+            for method in handleable_methods:
+                output[(method, path)] = registrations[(method, path)]
+
+    return output
+
+
+def simplify_path_regexes(
+    registrations: Dict[Tuple[str, str], EndpointDescription]
+) -> Dict[Tuple[str, str], EndpointDescription]:
+    """
+    Simplify all the path regexes for the dict of endpoint descriptions,
+    so that we don't use the Python-specific regex extensions
+    (and also to remove needlessly specific detail).
+    """
+
+    def simplify_path_regex(path: str) -> str:
+        """
+        Given a regex pattern, replaces all named capturing groups (e.g. `(?P<blah>xyz)`)
+        with a simpler version available in more common regex dialects (e.g. `.*`).
+        """
+
+        # TODO it's hard to choose between these two;
+        #      `.*` is a vague simplification
+        # return GROUP_PATTERN.sub(r"\1", path)
+        return GROUP_PATTERN.sub(r".*", path)
+
+    return {(m, simplify_path_regex(p)): v for (m, p), v in registrations.items()}
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(
+        description=(
+            "Updates a synapse database to the latest schema and optionally runs background updates"
+            " on it."
+        )
+    )
+    parser.add_argument("-v", action="store_true")
+    parser.add_argument(
+        "--config-path",
+        type=argparse.FileType("r"),
+        required=True,
+        help="Synapse configuration file",
+    )
+
+    args = parser.parse_args()
+
+    # TODO
+    # logging.basicConfig(**logging_config)
+
+    # Load, process and sanity-check the config.
+    hs_config = yaml.safe_load(args.config_path)
+
+    config = HomeServerConfig()
+    config.parse_config_dict(hs_config, "", "")
+
+    master_paths = get_registered_paths_for_default(None, config)
+    worker_paths = get_registered_paths_for_default(
+        "synapse.app.generic_worker", config
+    )
+
+    all_paths = {**master_paths, **worker_paths}
+
+    elided_worker_paths = elide_http_methods_if_unconflicting(worker_paths, all_paths)
+    elide_http_methods_if_unconflicting(master_paths, all_paths)
+
+    # TODO SSO endpoints (pick_idp etc) NOT REGISTERED BY THIS SCRIPT
+
+    categories_to_methods_and_paths: Dict[
+        Optional[str], Dict[Tuple[str, str], EndpointDescription]
+    ] = defaultdict(dict)
+
+    for (method, path), desc in elided_worker_paths.items():
+        categories_to_methods_and_paths[desc.category][method, path] = desc
+
+    for category, contents in categories_to_methods_and_paths.items():
+        print_category(category, contents)
+
+
+def print_category(
+    category_name: Optional[str],
+    elided_worker_paths: Dict[Tuple[str, str], EndpointDescription],
+) -> None:
+    """
+    Prints out a category, in documentation page style.
+
+    Example:
+    ```
+    # Category name
+    /path/xyz
+
+    GET /path/abc
+    ```
+    """
+
+    if category_name:
+        print(f"# {category_name}")
+    else:
+        print("# (Uncategorised requests)")
+
+    for ln in sorted(
+        p for m, p in simplify_path_regexes(elided_worker_paths) if m == "*"
+    ):
+        print(ln)
+    print()
+    for ln in sorted(
+        f"{m:6} {p}" for m, p in simplify_path_regexes(elided_worker_paths) if m != "*"
+    ):
+        print(ln)
+    print()
+
+
+if __name__ == "__main__":
+    main()

synapse/_scripts/synapse_port_db.py

@@ -18,6 +18,7 @@
 import argparse
 import curses
 import logging
+import os
 import sys
 import time
 import traceback
@@ -67,7 +68,10 @@ from synapse.storage.databases.main.media_repository import (
     MediaRepositoryBackgroundUpdateStore,
 )
 from synapse.storage.databases.main.presence import PresenceBackgroundUpdateStore
-from synapse.storage.databases.main.pusher import PusherWorkerStore
+from synapse.storage.databases.main.pusher import (
+    PusherBackgroundUpdatesStore,
+    PusherWorkerStore,
+)
 from synapse.storage.databases.main.receipts import ReceiptsBackgroundUpdateStore
 from synapse.storage.databases.main.registration import (
     RegistrationBackgroundUpdateStore,
@@ -225,6 +229,7 @@ class Store(
     AccountDataWorkerStore,
     PushRuleStore,
     PusherWorkerStore,
+    PusherBackgroundUpdatesStore,
     PresenceBackgroundUpdateStore,
     ReceiptsBackgroundUpdateStore,
     RelationsWorkerStore,
@@ -1326,10 +1331,17 @@ def main() -> None:
         filename="port-synapse.log" if args.curses else None,
     )
 
+    if not os.path.isfile(args.sqlite_database):
+        sys.stderr.write(
+            "The sqlite database you specified does not exist, please check that you have the"
+            "correct path."
+        )
+        sys.exit(1)
+
     sqlite_config = {
         "name": "sqlite3",
         "args": {
-            "database": "file:{}?mode=rw".format(args.sqlite_database),
+            "database": args.sqlite_database,
             "cp_min": 1,
             "cp_max": 1,
             "check_same_thread": False,

synapse/api/auth.py

@@ -254,7 +254,7 @@ class Auth:
             raise MissingClientTokenError()
 
     async def validate_appservice_can_control_user_id(
-        self, app_service: ApplicationService, user_id: str
+        self, app_service: ApplicationService, user_id: str, allow_any: bool = False
     ) -> None:
         """Validates that the app service is allowed to control
         the given user.
@@ -262,6 +262,7 @@ class Auth:
         Args:
             app_service: The app service that controls the user
             user_id: The author MXID that the app service is controlling
+            allow_any: Allow the appservice to control any local user
 
         Raises:
             AuthError: If the application service is not allowed to control the user
@@ -273,7 +274,7 @@ class Auth:
         if app_service.sender == user_id:
             pass
         # Check to make sure the app service is allowed to control the user
-        elif not app_service.is_interested_in_user(user_id):
+        elif not app_service.is_interested_in_user(user_id) and not allow_any:
             raise AuthError(
                 403,
                 "Application service cannot masquerade as this user (%s)." % user_id,

synapse/api/errors.py

@@ -27,7 +27,7 @@ from synapse.util import json_decoder
 
 if typing.TYPE_CHECKING:
     from synapse.config.homeserver import HomeServerConfig
-    from synapse.types import JsonDict
+    from synapse.types import JsonDict, StrCollection
 
 logger = logging.getLogger(__name__)
 
@@ -108,6 +108,11 @@ class Codes(str, Enum):
 
     USER_AWAITING_APPROVAL = "ORG.MATRIX.MSC3866_USER_AWAITING_APPROVAL"
 
+    AS_PING_URL_NOT_SET = "FI.MAU.MSC2659_URL_NOT_SET"
+    AS_PING_BAD_STATUS = "FI.MAU.MSC2659_BAD_STATUS"
+    AS_PING_CONNECTION_TIMEOUT = "FI.MAU.MSC2659_CONNECTION_TIMEOUT"
+    AS_PING_CONNECTION_FAILED = "FI.MAU.MSC2659_CONNECTION_FAILED"
+
     # Attempt to send a second annotation with the same event type & annotation key
     # MSC2677
     DUPLICATE_ANNOTATION = "M_DUPLICATE_ANNOTATION"
@@ -677,18 +682,27 @@ class FederationPullAttemptBackoffError(RuntimeError):
     Attributes:
         event_id: The event_id which we are refusing to pull
         message: A custom error message that gives more context
+        retry_after_ms: The remaining backoff interval, in milliseconds
     """
 
-    def __init__(self, event_ids: List[str], message: Optional[str]):
-        self.event_ids = event_ids
+    def __init__(
+        self, event_ids: "StrCollection", message: Optional[str], retry_after_ms: int
+    ):
+        event_ids = list(event_ids)
 
         if message:
             error_message = message
         else:
-            error_message = f"Not attempting to pull event_ids={self.event_ids} because we already tried to pull them recently (backing off)."
+            error_message = (
+                f"Not attempting to pull event_ids={event_ids} because we already "
+                "tried to pull them recently (backing off)."
+            )
 
         super().__init__(error_message)
 
+        self.event_ids = event_ids
+        self.retry_after_ms = retry_after_ms
+
 
 class HttpResponseException(CodeMessageException):
     """

synapse/app/_base.py

@@ -41,7 +41,12 @@ from typing_extensions import ParamSpec
 
 import twisted
 from twisted.internet import defer, error, reactor as _reactor
-from twisted.internet.interfaces import IOpenSSLContextFactory, IReactorSSL, IReactorTCP
+from twisted.internet.interfaces import (
+    IOpenSSLContextFactory,
+    IReactorSSL,
+    IReactorTCP,
+    IReactorUNIX,
+)
 from twisted.internet.protocol import ServerFactory
 from twisted.internet.tcp import Port
 from twisted.logger import LoggingFile, LogLevel
@@ -56,7 +61,7 @@ from synapse.app.phone_stats_home import start_phone_stats_home
 from synapse.config import ConfigError
 from synapse.config._base import format_config_error
 from synapse.config.homeserver import HomeServerConfig
-from synapse.config.server import ListenerConfig, ManholeConfig
+from synapse.config.server import ListenerConfig, ManholeConfig, TCPListenerConfig
 from synapse.crypto import context_factory
 from synapse.events.presence_router import load_legacy_presence_router
 from synapse.events.spamcheck import load_legacy_spam_checkers
@@ -351,6 +356,28 @@ def listen_tcp(
     return r  # type: ignore[return-value]
 
 
+def listen_unix(
+    path: str,
+    mode: int,
+    factory: ServerFactory,
+    reactor: IReactorUNIX = reactor,
+    backlog: int = 50,
+) -> List[Port]:
+    """
+    Create a UNIX socket for a given path and 'mode' permission
+
+    Returns:
+        list of twisted.internet.tcp.Port listening for TCP connections
+    """
+    wantPID = True
+
+    return [
+        # IReactorUNIX returns an object implementing IListeningPort from listenUNIX,
+        # but we know it will be a Port instance.
+        cast(Port, reactor.listenUNIX(path, factory, backlog, mode, wantPID))
+    ]
+
+
 def listen_http(
     listener_config: ListenerConfig,
     root_resource: Resource,
@@ -359,18 +386,13 @@ def listen_http(
     context_factory: Optional[IOpenSSLContextFactory],
     reactor: ISynapseReactor = reactor,
 ) -> List[Port]:
-    port = listener_config.port
-    bind_addresses = listener_config.bind_addresses
-    tls = listener_config.tls
-
     assert listener_config.http_options is not None
 
-    site_tag = listener_config.http_options.tag
-    if site_tag is None:
-        site_tag = str(port)
+    site_tag = listener_config.get_site_tag()
 
     site = SynapseSite(
-        "synapse.access.%s.%s" % ("https" if tls else "http", site_tag),
+        "synapse.access.%s.%s"
+        % ("https" if listener_config.is_tls() else "http", site_tag),
         site_tag,
         listener_config,
         root_resource,
@@ -378,25 +400,41 @@ def listen_http(
         max_request_body_size=max_request_body_size,
         reactor=reactor,
     )
-    if tls:
-        # refresh_certificate should have been called before this.
-        assert context_factory is not None
-        ports = listen_ssl(
-            bind_addresses,
-            port,
-            site,
-            context_factory,
-            reactor=reactor,
-        )
-        logger.info("Synapse now listening on TCP port %d (TLS)", port)
+
+    if isinstance(listener_config, TCPListenerConfig):
+        if listener_config.is_tls():
+            # refresh_certificate should have been called before this.
+            assert context_factory is not None
+            ports = listen_ssl(
+                listener_config.bind_addresses,
+                listener_config.port,
+                site,
+                context_factory,
+                reactor=reactor,
+            )
+            logger.info(
+                "Synapse now listening on TCP port %d (TLS)", listener_config.port
+            )
+        else:
+            ports = listen_tcp(
+                listener_config.bind_addresses,
+                listener_config.port,
+                site,
+                reactor=reactor,
+            )
+            logger.info("Synapse now listening on TCP port %d", listener_config.port)
+
     else:
-        ports = listen_tcp(
-            bind_addresses,
-            port,
-            site,
-            reactor=reactor,
+        ports = listen_unix(
+            listener_config.path, listener_config.mode, site, reactor=reactor
         )
-        logger.info("Synapse now listening on TCP port %d", port)
+        # getHost() returns a UNIXAddress which contains an instance variable of 'name'
+        # encoded as a byte string. Decode as utf-8 so pretty.
+        logger.info(
+            "Synapse now listening on Unix Socket at: "
+            f"{ports[0].getHost().name.decode('utf-8')}"
+        )
+
     return ports
 
 

synapse/app/generic_worker.py

@@ -38,7 +38,7 @@ from synapse.app._base import (
 from synapse.config._base import ConfigError
 from synapse.config.homeserver import HomeServerConfig
 from synapse.config.logger import setup_logging
-from synapse.config.server import ListenerConfig
+from synapse.config.server import ListenerConfig, TCPListenerConfig
 from synapse.federation.transport.server import TransportLayerServer
 from synapse.http.server import JsonResource, OptionsResource
 from synapse.logging.context import LoggingContext
@@ -236,12 +236,18 @@ class GenericWorkerServer(HomeServer):
             if listener.type == "http":
                 self._listen_http(listener)
             elif listener.type == "manhole":
-                _base.listen_manhole(
-                    listener.bind_addresses,
-                    listener.port,
-                    manhole_settings=self.config.server.manhole_settings,
-                    manhole_globals={"hs": self},
-                )
+                if isinstance(listener, TCPListenerConfig):
+                    _base.listen_manhole(
+                        listener.bind_addresses,
+                        listener.port,
+                        manhole_settings=self.config.server.manhole_settings,
+                        manhole_globals={"hs": self},
+                    )
+                else:
+                    raise ConfigError(
+                        "Can not using a unix socket for manhole at this time."
+                    )
+
             elif listener.type == "metrics":
                 if not self.config.metrics.enable_metrics:
                     logger.warning(
@@ -249,10 +255,16 @@ class GenericWorkerServer(HomeServer):
                         "enable_metrics is not True!"
                     )
                 else:
-                    _base.listen_metrics(
-                        listener.bind_addresses,
-                        listener.port,
-                    )
+                    if isinstance(listener, TCPListenerConfig):
+                        _base.listen_metrics(
+                            listener.bind_addresses,
+                            listener.port,
+                        )
+                    else:
+                        raise ConfigError(
+                            "Can not use a unix socket for metrics at this time."
+                        )
+
             else:
                 logger.warning("Unsupported listener type: %s", listener.type)
 

synapse/app/homeserver.py

@@ -44,7 +44,7 @@ from synapse.app._base import (
 )
 from synapse.config._base import ConfigError, format_config_error
 from synapse.config.homeserver import HomeServerConfig
-from synapse.config.server import ListenerConfig
+from synapse.config.server import ListenerConfig, TCPListenerConfig
 from synapse.federation.transport.server import TransportLayerServer
 from synapse.http.additional_resource import AdditionalResource
 from synapse.http.server import (
@@ -78,14 +78,13 @@ class SynapseHomeServer(HomeServer):
     DATASTORE_CLASS = DataStore  # type: ignore
 
     def _listener_http(
-        self, config: HomeServerConfig, listener_config: ListenerConfig
+        self,
+        config: HomeServerConfig,
+        listener_config: ListenerConfig,
     ) -> Iterable[Port]:
-        port = listener_config.port
         # Must exist since this is an HTTP listener.
         assert listener_config.http_options is not None
-        site_tag = listener_config.http_options.tag
-        if site_tag is None:
-            site_tag = str(port)
+        site_tag = listener_config.get_site_tag()
 
         # We always include a health resource.
         resources: Dict[str, Resource] = {"/health": HealthResource()}
@@ -252,12 +251,17 @@ class SynapseHomeServer(HomeServer):
                     self._listener_http(self.config, listener)
                 )
             elif listener.type == "manhole":
-                _base.listen_manhole(
-                    listener.bind_addresses,
-                    listener.port,
-                    manhole_settings=self.config.server.manhole_settings,
-                    manhole_globals={"hs": self},
-                )
+                if isinstance(listener, TCPListenerConfig):
+                    _base.listen_manhole(
+                        listener.bind_addresses,
+                        listener.port,
+                        manhole_settings=self.config.server.manhole_settings,
+                        manhole_globals={"hs": self},
+                    )
+                else:
+                    raise ConfigError(
+                        "Can not use a unix socket for manhole at this time."
+                    )
             elif listener.type == "metrics":
                 if not self.config.metrics.enable_metrics:
                     logger.warning(
@@ -265,10 +269,16 @@ class SynapseHomeServer(HomeServer):
                         "enable_metrics is not True!"
                     )
                 else:
-                    _base.listen_metrics(
-                        listener.bind_addresses,
-                        listener.port,
-                    )
+                    if isinstance(listener, TCPListenerConfig):
+                        _base.listen_metrics(
+                            listener.bind_addresses,
+                            listener.port,
+                        )
+                    else:
+                        raise ConfigError(
+                            "Can not use a unix socket for metrics at this time."
+                        )
+
             else:
                 # this shouldn't happen, as the listener type should have been checked
                 # during parsing

synapse/appservice/api.py

@@ -17,6 +17,8 @@ import urllib.parse
 from typing import (
     TYPE_CHECKING,
     Any,
+    Awaitable,
+    Callable,
     Dict,
     Iterable,
     List,
@@ -24,13 +26,14 @@ from typing import (
     Optional,
     Sequence,
     Tuple,
+    TypeVar,
 )
 
 from prometheus_client import Counter
-from typing_extensions import TypeGuard
+from typing_extensions import Concatenate, ParamSpec, TypeGuard
 
 from synapse.api.constants import EventTypes, Membership, ThirdPartyEntityKind
-from synapse.api.errors import CodeMessageException
+from synapse.api.errors import CodeMessageException, HttpResponseException
 from synapse.appservice import (
     ApplicationService,
     TransactionOneTimeKeysCount,
@@ -38,7 +41,7 @@ from synapse.appservice import (
 )
 from synapse.events import EventBase
 from synapse.events.utils import SerializeEventConfig, serialize_event
-from synapse.http.client import SimpleHttpClient
+from synapse.http.client import SimpleHttpClient, is_unknown_endpoint
 from synapse.types import DeviceListUpdates, JsonDict, ThirdPartyInstanceID
 from synapse.util.caches.response_cache import ResponseCache
 
@@ -78,7 +81,11 @@ sent_todevice_counter = Counter(
 HOUR_IN_MS = 60 * 60 * 1000
 
 
-APP_SERVICE_PREFIX = "/_matrix/app/unstable"
+APP_SERVICE_PREFIX = "/_matrix/app/v1"
+APP_SERVICE_UNSTABLE_PREFIX = "/_matrix/app/unstable"
+
+P = ParamSpec("P")
+R = TypeVar("R")
 
 
 def _is_valid_3pe_metadata(info: JsonDict) -> bool:
@@ -121,6 +128,47 @@ class ApplicationServiceApi(SimpleHttpClient):
             hs.get_clock(), "as_protocol_meta", timeout_ms=HOUR_IN_MS
         )
 
+    async def _send_with_fallbacks(
+        self,
+        service: "ApplicationService",
+        prefixes: List[str],
+        path: str,
+        func: Callable[Concatenate[str, P], Awaitable[R]],
+        *args: P.args,
+        **kwargs: P.kwargs,
+    ) -> R:
+        """
+        Attempt to call an application service with multiple paths, falling back
+        until one succeeds.
+
+        Args:
+            service: The appliacation service, this provides the base URL.
+            prefixes: A last of paths to try in order for the requests.
+            path: A suffix to append to each prefix.
+            func: The function to call, the first argument will be the full
+                endpoint to fetch. Other arguments are provided by args/kwargs.
+
+        Returns:
+            The return value of func.
+        """
+        for i, prefix in enumerate(prefixes, start=1):
+            uri = f"{service.url}{prefix}{path}"
+            try:
+                return await func(uri, *args, **kwargs)
+            except HttpResponseException as e:
+                # If an error is received that is due to an unrecognised path,
+                # fallback to next path (if one exists). Otherwise, consider it
+                # a legitimate error and raise.
+                if i < len(prefixes) and is_unknown_endpoint(e):
+                    continue
+                raise
+            except Exception:
+                # Unexpected exceptions get sent to the caller.
+                raise
+
+        # The function should always exit via the return or raise above this.
+        raise RuntimeError("Unexpected fallback behaviour. This should never be seen.")
+
     async def query_user(self, service: "ApplicationService", user_id: str) -> bool:
         if service.url is None:
             return False
@@ -128,10 +176,12 @@ class ApplicationServiceApi(SimpleHttpClient):
         # This is required by the configuration.
         assert service.hs_token is not None
 
-        uri = service.url + ("/users/%s" % urllib.parse.quote(user_id))
         try:
-            response = await self.get_json(
-                uri,
+            response = await self._send_with_fallbacks(
+                service,
+                [APP_SERVICE_PREFIX, ""],
+                f"/users/{urllib.parse.quote(user_id)}",
+                self.get_json,
                 {"access_token": service.hs_token},
                 headers={"Authorization": [f"Bearer {service.hs_token}"]},
             )
@@ -140,9 +190,9 @@ class ApplicationServiceApi(SimpleHttpClient):
         except CodeMessageException as e:
             if e.code == 404:
                 return False
-            logger.warning("query_user to %s received %s", uri, e.code)
+            logger.warning("query_user to %s received %s", service.url, e.code)
         except Exception as ex:
-            logger.warning("query_user to %s threw exception %s", uri, ex)
+            logger.warning("query_user to %s threw exception %s", service.url, ex)
         return False
 
     async def query_alias(self, service: "ApplicationService", alias: str) -> bool:
@@ -152,21 +202,23 @@ class ApplicationServiceApi(SimpleHttpClient):
         # This is required by the configuration.
         assert service.hs_token is not None
 
-        uri = service.url + ("/rooms/%s" % urllib.parse.quote(alias))
         try:
-            response = await self.get_json(
-                uri,
+            response = await self._send_with_fallbacks(
+                service,
+                [APP_SERVICE_PREFIX, ""],
+                f"/rooms/{urllib.parse.quote(alias)}",
+                self.get_json,
                 {"access_token": service.hs_token},
                 headers={"Authorization": [f"Bearer {service.hs_token}"]},
             )
             if response is not None:  # just an empty json object
                 return True
         except CodeMessageException as e:
-            logger.warning("query_alias to %s received %s", uri, e.code)
+            logger.warning("query_alias to %s received %s", service.url, e.code)
             if e.code == 404:
                 return False
         except Exception as ex:
-            logger.warning("query_alias to %s threw exception %s", uri, ex)
+            logger.warning("query_alias to %s threw exception %s", service.url, ex)
         return False
 
     async def query_3pe(
@@ -188,25 +240,24 @@ class ApplicationServiceApi(SimpleHttpClient):
         # This is required by the configuration.
         assert service.hs_token is not None
 
-        uri = "%s%s/thirdparty/%s/%s" % (
-            service.url,
-            APP_SERVICE_PREFIX,
-            kind,
-            urllib.parse.quote(protocol),
-        )
         try:
             args: Mapping[Any, Any] = {
                 **fields,
                 b"access_token": service.hs_token,
             }
-            response = await self.get_json(
-                uri,
+            response = await self._send_with_fallbacks(
+                service,
+                [APP_SERVICE_PREFIX, APP_SERVICE_UNSTABLE_PREFIX],
+                f"/thirdparty/{kind}/{urllib.parse.quote(protocol)}",
+                self.get_json,
                 args=args,
                 headers={"Authorization": [f"Bearer {service.hs_token}"]},
             )
             if not isinstance(response, list):
                 logger.warning(
-                    "query_3pe to %s returned an invalid response %r", uri, response
+                    "query_3pe to %s returned an invalid response %r",
+                    service.url,
+                    response,
                 )
                 return []
 
@@ -216,12 +267,12 @@ class ApplicationServiceApi(SimpleHttpClient):
                     ret.append(r)
                 else:
                     logger.warning(
-                        "query_3pe to %s returned an invalid result %r", uri, r
+                        "query_3pe to %s returned an invalid result %r", service.url, r
                     )
 
             return ret
         except Exception as ex:
-            logger.warning("query_3pe to %s threw exception %s", uri, ex)
+            logger.warning("query_3pe to %s threw exception %s", service.url, ex)
             return []
 
     async def get_3pe_protocol(
@@ -233,21 +284,20 @@ class ApplicationServiceApi(SimpleHttpClient):
         async def _get() -> Optional[JsonDict]:
             # This is required by the configuration.
             assert service.hs_token is not None
-            uri = "%s%s/thirdparty/protocol/%s" % (
-                service.url,
-                APP_SERVICE_PREFIX,
-                urllib.parse.quote(protocol),
-            )
             try:
-                info = await self.get_json(
-                    uri,
+                info = await self._send_with_fallbacks(
+                    service,
+                    [APP_SERVICE_PREFIX, APP_SERVICE_UNSTABLE_PREFIX],
+                    f"/thirdparty/protocol/{urllib.parse.quote(protocol)}",
+                    self.get_json,
                     {"access_token": service.hs_token},
                     headers={"Authorization": [f"Bearer {service.hs_token}"]},
                 )
 
                 if not _is_valid_3pe_metadata(info):
                     logger.warning(
-                        "query_3pe_protocol to %s did not return a valid result", uri
+                        "query_3pe_protocol to %s did not return a valid result",
+                        service.url,
                     )
                     return None
 
@@ -260,12 +310,27 @@ class ApplicationServiceApi(SimpleHttpClient):
 
                 return info
             except Exception as ex:
-                logger.warning("query_3pe_protocol to %s threw exception %s", uri, ex)
+                logger.warning(
+                    "query_3pe_protocol to %s threw exception %s", service.url, ex
+                )
                 return None
 
         key = (service.id, protocol)
         return await self.protocol_meta_cache.wrap(key, _get)
 
+    async def ping(self, service: "ApplicationService", txn_id: Optional[str]) -> None:
+        # The caller should check that url is set
+        assert service.url is not None, "ping called without URL being set"
+
+        # This is required by the configuration.
+        assert service.hs_token is not None
+
+        await self.post_json_get_json(
+            uri=f"{service.url}{APP_SERVICE_UNSTABLE_PREFIX}/fi.mau.msc2659/ping",
+            post_json={"transaction_id": txn_id},
+            headers={"Authorization": [f"Bearer {service.hs_token}"]},
+        )
+
     async def push_bulk(
         self,
         service: "ApplicationService",
@@ -305,8 +370,6 @@ class ApplicationServiceApi(SimpleHttpClient):
             )
             txn_id = 0
 
-        uri = service.url + ("/transactions/%s" % urllib.parse.quote(str(txn_id)))
-
         # Never send ephemeral events to appservices that do not support it
         body: JsonDict = {"events": serialized_events}
         if service.supports_ephemeral:
@@ -338,8 +401,11 @@ class ApplicationServiceApi(SimpleHttpClient):
                 }
 
         try:
-            await self.put_json(
-                uri=uri,
+            await self._send_with_fallbacks(
+                service,
+                [APP_SERVICE_PREFIX, ""],
+                f"/transactions/{urllib.parse.quote(str(txn_id))}",
+                self.put_json,
                 json_body=body,
                 args={"access_token": service.hs_token},
                 headers={"Authorization": [f"Bearer {service.hs_token}"]},
@@ -347,7 +413,7 @@ class ApplicationServiceApi(SimpleHttpClient):
             if logger.isEnabledFor(logging.DEBUG):
                 logger.debug(
                     "push_bulk to %s succeeded! events=%s",
-                    uri,
+                    service.url,
                     [event.get("event_id") for event in events],
                 )
             sent_transactions_counter.labels(service.id).inc()
@@ -358,7 +424,7 @@ class ApplicationServiceApi(SimpleHttpClient):
         except CodeMessageException as e:
             logger.warning(
                 "push_bulk to %s received code=%s msg=%s",
-                uri,
+                service.url,
                 e.code,
                 e.msg,
                 exc_info=logger.isEnabledFor(logging.DEBUG),
@@ -366,7 +432,7 @@ class ApplicationServiceApi(SimpleHttpClient):
         except Exception as ex:
             logger.warning(
                 "push_bulk to %s threw exception(%s) %s args=%s",
-                uri,
+                service.url,
                 type(ex).__name__,
                 ex,
                 ex.args,
@@ -375,6 +441,108 @@ class ApplicationServiceApi(SimpleHttpClient):
         failed_transactions_counter.labels(service.id).inc()
         return False
 
+    async def claim_client_keys(
+        self, service: "ApplicationService", query: List[Tuple[str, str, str]]
+    ) -> Tuple[Dict[str, Dict[str, Dict[str, JsonDict]]], List[Tuple[str, str, str]]]:
+        """Claim one time keys from an application service.
+
+        Note that any error (including a timeout) is treated as the application
+        service having no information.
+
+        Args:
+            service: The application service to query.
+            query: An iterable of tuples of (user ID, device ID, algorithm).
+
+        Returns:
+            A tuple of:
+                A map of user ID -> a map device ID -> a map of key ID -> JSON dict.
+
+                A copy of the input which has not been fulfilled because the
+                appservice doesn't support this endpoint or has not returned
+                data for that tuple.
+        """
+        if service.url is None:
+            return {}, query
+
+        # This is required by the configuration.
+        assert service.hs_token is not None
+
+        # Create the expected payload shape.
+        body: Dict[str, Dict[str, List[str]]] = {}
+        for user_id, device, algorithm in query:
+            body.setdefault(user_id, {}).setdefault(device, []).append(algorithm)
+
+        uri = f"{service.url}/_matrix/app/unstable/org.matrix.msc3983/keys/claim"
+        try:
+            response = await self.post_json_get_json(
+                uri,
+                body,
+                headers={"Authorization": [f"Bearer {service.hs_token}"]},
+            )
+        except HttpResponseException as e:
+            # The appservice doesn't support this endpoint.
+            if is_unknown_endpoint(e):
+                return {}, query
+            logger.warning("claim_keys to %s received %s", uri, e.code)
+            return {}, query
+        except Exception as ex:
+            logger.warning("claim_keys to %s threw exception %s", uri, ex)
+            return {}, query
+
+        # Check if the appservice fulfilled all of the queried user/device/algorithms
+        # or if some are still missing.
+        #
+        # TODO This places a lot of faith in the response shape being correct.
+        missing = [
+            (user_id, device, algorithm)
+            for user_id, device, algorithm in query
+            if algorithm not in response.get(user_id, {}).get(device, [])
+        ]
+
+        return response, missing
+
+    async def query_keys(
+        self, service: "ApplicationService", query: Dict[str, List[str]]
+    ) -> Dict[str, Dict[str, Dict[str, JsonDict]]]:
+        """Query the application service for keys.
+
+        Note that any error (including a timeout) is treated as the application
+        service having no information.
+
+        Args:
+            service: The application service to query.
+            query: An iterable of tuples of (user ID, device ID, algorithm).
+
+        Returns:
+            A map of device_keys/master_keys/self_signing_keys/user_signing_keys:
+
+            device_keys is a map of user ID -> a map device ID -> device info.
+        """
+        if service.url is None:
+            return {}
+
+        # This is required by the configuration.
+        assert service.hs_token is not None
+
+        uri = f"{service.url}/_matrix/app/unstable/org.matrix.msc3984/keys/query"
+        try:
+            response = await self.post_json_get_json(
+                uri,
+                query,
+                headers={"Authorization": [f"Bearer {service.hs_token}"]},
+            )
+        except HttpResponseException as e:
+            # The appservice doesn't support this endpoint.
+            if is_unknown_endpoint(e):
+                return {}
+            logger.warning("query_keys to %s received %s", uri, e.code)
+            return {}
+        except Exception as ex:
+            logger.warning("query_keys to %s threw exception %s", uri, ex)
+            return {}
+
+        return response
+
     def _serialize(
         self, service: "ApplicationService", events: Iterable[EventBase]
     ) -> List[JsonDict]:

synapse/config/_base.pyi

@@ -35,6 +35,7 @@ from synapse.config import (  # noqa: F401
     jwt,
     key,
     logger,
+    meow,
     metrics,
     modules,
     oembed,
@@ -90,6 +91,7 @@ class RootConfig:
     voip: voip.VoipConfig
     registration: registration.RegistrationConfig
     account_validity: account_validity.AccountValidityConfig
+    meow: meow.MeowConfig
     metrics: metrics.MetricsConfig
     api: api.ApiConfig
     appservice: appservice.AppServiceConfig

synapse/config/experimental.py

@@ -74,6 +74,16 @@ class ExperimentalConfig(Config):
             "msc3202_transaction_extensions", False
         )
 
+        # MSC3983: Proxying OTK claim requests to exclusive ASes.
+        self.msc3983_appservice_otk_claims: bool = experimental.get(
+            "msc3983_appservice_otk_claims", False
+        )
+
+        # MSC3984: Proxying key queries to exclusive ASes.
+        self.msc3984_appservice_key_query: bool = experimental.get(
+            "msc3984_appservice_key_query", False
+        )
+
         # MSC3706 (server-side support for partial state in /send_join responses)
         # Synapse will always serve partial state responses to requests using the stable
         # query parameter `omit_members`. If this flag is set, Synapse will also serve
@@ -166,20 +176,9 @@ class ExperimentalConfig(Config):
         # MSC3391: Removing account data.
         self.msc3391_enabled = experimental.get("msc3391_enabled", False)
 
-        # MSC3873: Disambiguate event_match keys.
-        self.msc3873_escape_event_match_key = experimental.get(
-            "msc3873_escape_event_match_key", False
-        )
-
-        # MSC3966: exact_event_property_contains push rule condition.
-        self.msc3966_exact_event_property_contains = experimental.get(
-            "msc3966_exact_event_property_contains", False
-        )
-
         # MSC3952: Intentional mentions, this depends on MSC3966.
-        self.msc3952_intentional_mentions = (
-            experimental.get("msc3952_intentional_mentions", False)
-            and self.msc3966_exact_event_property_contains
+        self.msc3952_intentional_mentions = experimental.get(
+            "msc3952_intentional_mentions", False
         )
 
         # MSC3959: Do not generate notifications for edits.
@@ -187,10 +186,8 @@ class ExperimentalConfig(Config):
             "msc3958_supress_edit_notifs", False
         )
 
-        # MSC3966: exact_event_property_contains push rule condition.
-        self.msc3966_exact_event_property_contains = experimental.get(
-            "msc3966_exact_event_property_contains", False
-        )
-
         # MSC3967: Do not require UIA when first uploading cross signing keys
         self.msc3967_enabled = experimental.get("msc3967_enabled", False)
+
+        # MSC2659: Application service ping endpoint
+        self.msc2659_enabled = experimental.get("msc2659_enabled", False)

synapse/config/homeserver.py

@@ -12,6 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 from ._base import RootConfig
+from .meow import MeowConfig
 from .account_validity import AccountValidityConfig
 from .api import ApiConfig
 from .appservice import AppServiceConfig
@@ -57,6 +58,7 @@ from .workers import WorkerConfig
 
 class HomeServerConfig(RootConfig):
     config_classes = [
+        MeowConfig,
         ModulesConfig,
         ServerConfig,
         RetentionConfig,

synapse/config/meow.py

@@ -0,0 +1,56 @@
+# -*- coding: utf-8 -*-
+# Copyright 2020 Maunium
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from ._base import Config
+
+
+class MeowConfig(Config):
+    """Meow Configuration
+    Configuration for disabling dumb limits in Synapse
+    """
+
+    section = "meow"
+
+    def read_config(self, config, **kwargs):
+        meow_config = config.get("meow", {})
+        self.validation_override = set(meow_config.get("validation_override", []))
+        self.filter_override = set(meow_config.get("filter_override", []))
+        self.timestamp_override = set(meow_config.get("timestamp_override", []))
+        self.admin_api_register_invalid = meow_config.get(
+            "admin_api_register_invalid", True
+        )
+        self.appservice_batch_send_any = meow_config.get(
+            "appservice_batch_send_any", False
+        )
+
+    def generate_config_section(self, config_dir_path, server_name, **kwargs):
+        return """
+        # Configuration for disabling dumb limits in Synapse
+        #
+        #meow:
+        #   # List of users who aren't subject to unnecessary validation in the C-S API.
+        #   validation_override:
+        #   - "@you:example.com"
+        #   # List of users who will get org.matrix.dummy_event and m.room.aliases events down /sync
+        #   filter_override:
+        #   - "@you:example.com"
+        #   # List of users who can use timestamp massaging without being appservices
+        #   timestamp_override:
+        #   - "@you:example.com"
+        #   # Whether or not the admin API should be able to register invalid user IDs.
+        #   admin_api_register_invalid: true
+        #   # Whether appservices should be allowed to use MSC2716 batch sending as any local user.
+        #   appservice_batch_send_any: false
+        """

synapse/config/oidc.py

@@ -136,6 +136,7 @@ OIDC_PROVIDER_CONFIG_SCHEMA = {
             "type": "array",
             "items": SsoAttributeRequirement.JSON_SCHEMA,
         },
+        "enable_registration": {"type": "boolean"},
     },
 }
 
@@ -306,6 +307,7 @@ def _parse_oidc_config_dict(
         user_mapping_provider_class=user_mapping_provider_class,
         user_mapping_provider_config=user_mapping_provider_config,
         attribute_requirements=attribute_requirements,
+        enable_registration=oidc_config.get("enable_registration", True),
     )
 
 
@@ -405,3 +407,6 @@ class OidcProviderConfig:
 
     # required attributes to require in userinfo to allow login/registration
     attribute_requirements: List[SsoAttributeRequirement]
+
+    # Whether automatic registrations are enabled in the ODIC flow. Defaults to True
+    enable_registration: bool

synapse/config/repository.py

@@ -47,10 +47,8 @@ THUMBNAIL_SIZE_YAML = """\
 THUMBNAIL_SUPPORTED_MEDIA_FORMAT_MAP = {
     "image/jpeg": "jpeg",
     "image/jpg": "jpeg",
-    "image/webp": "jpeg",
-    # Thumbnails can only be jpeg or png. We choose png thumbnails for gif
-    # because it can have transparency.
-    "image/gif": "png",
+    "image/webp": "webp",
+    "image/gif": "webp",
     "image/png": "png",
 }
 
@@ -102,6 +100,10 @@ def parse_thumbnail_requirements(
                 requirement.append(
                     ThumbnailRequirement(width, height, method, "image/png")
                 )
+            elif thumbnail_format == "webp":
+                requirement.append(
+                    ThumbnailRequirement(width, height, method, "image/webp")
+                )
             else:
                 raise Exception(
                     "Unknown thumbnail mapping from %s to %s. This is a Synapse problem, please report!"

synapse/config/server.py

@@ -214,17 +214,52 @@ class HttpListenerConfig:
 
 
 @attr.s(slots=True, frozen=True, auto_attribs=True)
-class ListenerConfig:
-    """Object describing the configuration of a single listener."""
+class TCPListenerConfig:
+    """Object describing the configuration of a single TCP listener."""
 
     port: int = attr.ib(validator=attr.validators.instance_of(int))
-    bind_addresses: List[str]
+    bind_addresses: List[str] = attr.ib(validator=attr.validators.instance_of(List))
     type: str = attr.ib(validator=attr.validators.in_(KNOWN_LISTENER_TYPES))
     tls: bool = False
 
     # http_options is only populated if type=http
     http_options: Optional[HttpListenerConfig] = None
 
+    def get_site_tag(self) -> str:
+        """Retrieves http_options.tag if it exists, otherwise the port number."""
+        if self.http_options and self.http_options.tag is not None:
+            return self.http_options.tag
+        else:
+            return str(self.port)
+
+    def is_tls(self) -> bool:
+        return self.tls
+
+
+@attr.s(slots=True, frozen=True, auto_attribs=True)
+class UnixListenerConfig:
+    """Object describing the configuration of a single Unix socket listener."""
+
+    # Note: unix sockets can not be tls encrypted, so HAVE to be behind a tls-handling
+    # reverse proxy
+    path: str = attr.ib()
+    # A default(0o666) for this is set in parse_listener_def() below
+    mode: int
+    type: str = attr.ib(validator=attr.validators.in_(KNOWN_LISTENER_TYPES))
+
+    # http_options is only populated if type=http
+    http_options: Optional[HttpListenerConfig] = None
+
+    def get_site_tag(self) -> str:
+        return "unix"
+
+    def is_tls(self) -> bool:
+        """Unix sockets can't have TLS"""
+        return False
+
+
+ListenerConfig = Union[TCPListenerConfig, UnixListenerConfig]
+
 
 @attr.s(slots=True, frozen=True, auto_attribs=True)
 class ManholeConfig:
@@ -531,12 +566,12 @@ class ServerConfig(Config):
 
         self.listeners = [parse_listener_def(i, x) for i, x in enumerate(listeners)]
 
-        # no_tls is not really supported any more, but let's grandfather it in
-        # here.
+        # no_tls is not really supported anymore, but let's grandfather it in here.
         if config.get("no_tls", False):
             l2 = []
             for listener in self.listeners:
-                if listener.tls:
+                if isinstance(listener, TCPListenerConfig) and listener.tls:
+                    # Use isinstance() as the assertion this *has* a listener.port
                     logger.info(
                         "Ignoring TLS-enabled listener on port %i due to no_tls",
                         listener.port,
@@ -577,7 +612,7 @@ class ServerConfig(Config):
             )
 
             self.listeners.append(
-                ListenerConfig(
+                TCPListenerConfig(
                     port=bind_port,
                     bind_addresses=[bind_host],
                     tls=True,
@@ -589,7 +624,7 @@ class ServerConfig(Config):
             unsecure_port = config.get("unsecure_port", bind_port - 400)
             if unsecure_port:
                 self.listeners.append(
-                    ListenerConfig(
+                    TCPListenerConfig(
                         port=unsecure_port,
                         bind_addresses=[bind_host],
                         tls=False,
@@ -601,7 +636,7 @@ class ServerConfig(Config):
         manhole = config.get("manhole")
         if manhole:
             self.listeners.append(
-                ListenerConfig(
+                TCPListenerConfig(
                     port=manhole,
                     bind_addresses=["127.0.0.1"],
                     type="manhole",
@@ -648,7 +683,7 @@ class ServerConfig(Config):
             logger.warning(METRICS_PORT_WARNING)
 
             self.listeners.append(
-                ListenerConfig(
+                TCPListenerConfig(
                     port=metrics_port,
                     bind_addresses=[config.get("metrics_bind_host", "127.0.0.1")],
                     type="http",
@@ -724,7 +759,7 @@ class ServerConfig(Config):
             self.delete_stale_devices_after = None
 
     def has_tls_listener(self) -> bool:
-        return any(listener.tls for listener in self.listeners)
+        return any(listener.is_tls() for listener in self.listeners)
 
     def generate_config_section(
         self,
@@ -904,25 +939,25 @@ def parse_listener_def(num: int, listener: Any) -> ListenerConfig:
         raise ConfigError(DIRECT_TCP_ERROR, ("listeners", str(num), "type"))
 
     port = listener.get("port")
-    if type(port) is not int:
+    socket_path = listener.get("path")
+    # Either a port or a path should be declared at a minimum. Using both would be bad.
+    if port is not None and not isinstance(port, int):
         raise ConfigError("Listener configuration is lacking a valid 'port' option")
+    if socket_path is not None and not isinstance(socket_path, str):
+        raise ConfigError("Listener configuration is lacking a valid 'path' option")
+    if port and socket_path:
+        raise ConfigError(
+            "Can not have both a UNIX socket and an IP/port declared for the same "
+            "resource!"
+        )
+    if port is None and socket_path is None:
+        raise ConfigError(
+            "Must have either a UNIX socket or an IP/port declared for a given "
+            "resource!"
+        )
 
     tls = listener.get("tls", False)
 
-    bind_addresses = listener.get("bind_addresses", [])
-    bind_address = listener.get("bind_address")
-    # if bind_address was specified, add it to the list of addresses
-    if bind_address:
-        bind_addresses.append(bind_address)
-
-    # if we still have an empty list of addresses, use the default list
-    if not bind_addresses:
-        if listener_type == "metrics":
-            # the metrics listener doesn't support IPv6
-            bind_addresses.append("0.0.0.0")
-        else:
-            bind_addresses.extend(DEFAULT_BIND_ADDRESSES)
-
     http_config = None
     if listener_type == "http":
         try:
@@ -932,8 +967,12 @@ def parse_listener_def(num: int, listener: Any) -> ListenerConfig:
         except ValueError as e:
             raise ConfigError("Unknown listener resource") from e
 
+        # For a unix socket, default x_forwarded to True, as this is the only way of
+        # getting a client IP.
+        # Note: a reverse proxy is required anyway, as there is no way of exposing a
+        # unix socket to the internet.
         http_config = HttpListenerConfig(
-            x_forwarded=listener.get("x_forwarded", False),
+            x_forwarded=listener.get("x_forwarded", (True if socket_path else False)),
             resources=resources,
             additional_resources=listener.get("additional_resources", {}),
             tag=listener.get("tag"),
@@ -941,7 +980,30 @@ def parse_listener_def(num: int, listener: Any) -> ListenerConfig:
             experimental_cors_msc3886=listener.get("experimental_cors_msc3886", False),
         )
 
-    return ListenerConfig(port, bind_addresses, listener_type, tls, http_config)
+    if socket_path:
+        # TODO: Add in path validation, like if the directory exists and is writable?
+        # Set a default for the permission, in case it's left out
+        socket_mode = listener.get("mode", 0o666)
+
+        return UnixListenerConfig(socket_path, socket_mode, listener_type, http_config)
+
+    else:
+        assert port is not None
+        bind_addresses = listener.get("bind_addresses", [])
+        bind_address = listener.get("bind_address")
+        # if bind_address was specified, add it to the list of addresses
+        if bind_address:
+            bind_addresses.append(bind_address)
+
+        # if we still have an empty list of addresses, use the default list
+        if not bind_addresses:
+            if listener_type == "metrics":
+                # the metrics listener doesn't support IPv6
+                bind_addresses.append("0.0.0.0")
+            else:
+                bind_addresses.extend(DEFAULT_BIND_ADDRESSES)
+
+        return TCPListenerConfig(port, bind_addresses, listener_type, tls, http_config)
 
 
 _MANHOLE_SETTINGS_SCHEMA = {

synapse/config/workers.py

@@ -19,15 +19,18 @@ from typing import Any, Dict, List, Union
 
 import attr
 
-from synapse.types import JsonDict
-
-from ._base import (
+from synapse.config._base import (
     Config,
     ConfigError,
     RoutableShardedWorkerHandlingConfig,
     ShardedWorkerHandlingConfig,
 )
-from .server import DIRECT_TCP_ERROR, ListenerConfig, parse_listener_def
+from synapse.config.server import (
+    DIRECT_TCP_ERROR,
+    TCPListenerConfig,
+    parse_listener_def,
+)
+from synapse.types import JsonDict
 
 _DEPRECATED_WORKER_DUTY_OPTION_USED = """
 The '%s' configuration option is deprecated and will be removed in a future
@@ -161,7 +164,7 @@ class WorkerConfig(Config):
         manhole = config.get("worker_manhole")
         if manhole:
             self.worker_listeners.append(
-                ListenerConfig(
+                TCPListenerConfig(
                     port=manhole,
                     bind_addresses=["127.0.0.1"],
                     type="manhole",

synapse/crypto/event_signing.py

@@ -51,7 +51,7 @@ def check_event_content_hash(
     # some malformed events lack a 'hashes'. Protect against it being missing
     # or a weird type by basically treating it the same as an unhashed event.
     hashes = event.get("hashes")
-    # nb it might be a frozendict or a dict
+    # nb it might be a immutabledict or a dict
     if not isinstance(hashes, collections.abc.Mapping):
         raise SynapseError(
             400, "Malformed 'hashes': %s" % (type(hashes),), Codes.UNAUTHORIZED

synapse/event_auth.py

@@ -168,13 +168,24 @@ async def check_state_independent_auth_rules(
         return
 
     # 2. Reject if event has auth_events that: ...
-    auth_events = await store.get_events(
-        event.auth_event_ids(),
-        redact_behaviour=EventRedactBehaviour.as_is,
-        allow_rejected=True,
-    )
     if batched_auth_events:
-        auth_events.update(batched_auth_events)
+        # Copy the batched auth events to avoid mutating them.
+        auth_events = dict(batched_auth_events)
+        needed_auth_event_ids = set(event.auth_event_ids()) - batched_auth_events.keys()
+        if needed_auth_event_ids:
+            auth_events.update(
+                await store.get_events(
+                    needed_auth_event_ids,
+                    redact_behaviour=EventRedactBehaviour.as_is,
+                    allow_rejected=True,
+                )
+            )
+    else:
+        auth_events = await store.get_events(
+            event.auth_event_ids(),
+            redact_behaviour=EventRedactBehaviour.as_is,
+            allow_rejected=True,
+        )
 
     room_id = event.room_id
     auth_dict: MutableStateMap[str] = {}

synapse/events/__init__.py

@@ -462,7 +462,7 @@ class FrozenEvent(EventBase):
         # Signatures is a dict of dicts, and this is faster than doing a
         # copy.deepcopy
         signatures = {
-            name: {sig_id: sig for sig_id, sig in sigs.items()}
+            name: dict(sigs.items())
             for name, sigs in event_dict.pop("signatures", {}).items()
         }
 
@@ -510,7 +510,7 @@ class FrozenEventV2(EventBase):
         # Signatures is a dict of dicts, and this is faster than doing a
         # copy.deepcopy
         signatures = {
-            name: {sig_id: sig for sig_id, sig in sigs.items()}
+            name: dict(sigs.items())
             for name, sigs in event_dict.pop("signatures", {}).items()
         }
 

synapse/events/snapshot.py

@@ -15,7 +15,7 @@ from abc import ABC, abstractmethod
 from typing import TYPE_CHECKING, List, Optional, Tuple
 
 import attr
-from frozendict import frozendict
+from immutabledict import immutabledict
 
 from synapse.appservice import ApplicationService
 from synapse.events import EventBase
@@ -293,6 +293,7 @@ class EventContext(UnpersistedEventContextBase):
             Maps a (type, state_key) to the event ID of the state event matching
             this tuple.
         """
+
         assert self.state_group_before_event is not None
         return await self._storage.state.get_state_ids_for_group(
             self.state_group_before_event, state_filter
@@ -488,4 +489,4 @@ def _decode_state_dict(
     if input is None:
         return None
 
-    return frozendict({(etype, state_key): v for etype, state_key, v in input})
+    return immutabledict({(etype, state_key): v for etype, state_key, v in input})

synapse/events/utils.py

@@ -355,7 +355,7 @@ def serialize_event(
     time_now_ms = int(time_now_ms)
 
     # Should this strip out None's?
-    d = {k: v for k, v in e.get_dict().items()}
+    d = dict(e.get_dict().items())
 
     d["event_id"] = e.event_id
 
@@ -567,7 +567,7 @@ PowerLevelsContent = Mapping[str, Union[_PowerLevel, Mapping[str, _PowerLevel]]]
 def copy_and_fixup_power_levels_contents(
     old_power_levels: PowerLevelsContent,
 ) -> Dict[str, Union[int, Dict[str, int]]]:
-    """Copy the content of a power_levels event, unfreezing frozendicts along the way.
+    """Copy the content of a power_levels event, unfreezing immutabledicts along the way.
 
     We accept as input power level values which are strings, provided they represent an
     integer, e.g. `"`100"` instead of 100. Such strings are converted to integers

synapse/events/validator.py

@@ -12,11 +12,17 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import collections.abc
-from typing import Iterable, Type, Union, cast
+from typing import Iterable, List, Type, Union, cast
 
 import jsonschema
+from pydantic import Field, StrictBool, StrictStr
 
-from synapse.api.constants import MAX_ALIAS_LENGTH, EventTypes, Membership
+from synapse.api.constants import (
+    MAX_ALIAS_LENGTH,
+    EventContentFields,
+    EventTypes,
+    Membership,
+)
 from synapse.api.errors import Codes, SynapseError
 from synapse.api.room_versions import EventFormatVersions
 from synapse.config.homeserver import HomeServerConfig
@@ -28,6 +34,8 @@ from synapse.events.utils import (
     validate_canonicaljson,
 )
 from synapse.federation.federation_server import server_matches_acl_event
+from synapse.http.servlet import validate_json_object
+from synapse.rest.models import RequestBodyModel
 from synapse.types import EventID, JsonDict, RoomID, UserID
 
 
@@ -43,7 +51,7 @@ class EventValidator:
             event: The event to validate.
             config: The homeserver's configuration.
         """
-        self.validate_builder(event)
+        self.validate_builder(event, config)
 
         if event.format_version == EventFormatVersions.ROOM_V1_V2:
             EventID.from_string(event.event_id)
@@ -74,6 +82,12 @@ class EventValidator:
             # Note that only the client controlled portion of the event is
             # checked, since we trust the portions of the event we created.
             validate_canonicaljson(event.content)
+        if not 0 < event.origin_server_ts < 2**53:
+            raise SynapseError(400, "Event timestamp is out of range")
+
+        # meow: allow specific users to send potentially dangerous events.
+        if event.sender in config.meow.validation_override:
+            return
 
         if event.type == EventTypes.Aliases:
             if "aliases" in event.content:
@@ -88,27 +102,27 @@ class EventValidator:
                             Codes.INVALID_PARAM,
                         )
 
-        if event.type == EventTypes.Retention:
+        elif event.type == EventTypes.Retention:
             self._validate_retention(event)
 
-        if event.type == EventTypes.ServerACL:
+        elif event.type == EventTypes.ServerACL:
             if not server_matches_acl_event(config.server.server_name, event):
                 raise SynapseError(
                     400, "Can't create an ACL event that denies the local server"
                 )
 
-        if event.type == EventTypes.PowerLevels:
+        elif event.type == EventTypes.PowerLevels:
             try:
                 jsonschema.validate(
                     instance=event.content,
                     schema=POWER_LEVELS_SCHEMA,
-                    cls=plValidator,
+                    cls=POWER_LEVELS_VALIDATOR,
                 )
             except jsonschema.ValidationError as e:
                 if e.path:
                     # example: "users_default": '0' is not of type 'integer'
                     # cast safety: path entries can be integers, if we fail to validate
-                    # items in an array. However the POWER_LEVELS_SCHEMA doesn't expect
+                    # items in an array. However, the POWER_LEVELS_SCHEMA doesn't expect
                     # to see any arrays.
                     message = (
                         '"' + cast(str, e.path[-1]) + '": ' + e.message  # noqa: B306
@@ -125,6 +139,15 @@ class EventValidator:
                     errcode=Codes.BAD_JSON,
                 )
 
+        # If the event contains a mentions key, validate it.
+        if (
+            EventContentFields.MSC3952_MENTIONS in event.content
+            and config.experimental.msc3952_intentional_mentions
+        ):
+            validate_json_object(
+                event.content[EventContentFields.MSC3952_MENTIONS], Mentions
+            )
+
     def _validate_retention(self, event: EventBase) -> None:
         """Checks that an event that defines the retention policy for a room respects the
         format enforced by the spec.
@@ -165,7 +188,9 @@ class EventValidator:
                 errcode=Codes.BAD_JSON,
             )
 
-    def validate_builder(self, event: Union[EventBase, EventBuilder]) -> None:
+    def validate_builder(
+        self, event: Union[EventBase, EventBuilder], config: HomeServerConfig
+    ) -> None:
         """Validates that the builder/event has roughly the right format. Only
         checks values that we expect a proto event to have, rather than all the
         fields an event would have
@@ -183,6 +208,10 @@ class EventValidator:
         RoomID.from_string(event.room_id)
         UserID.from_string(event.sender)
 
+        # meow: allow specific users to send so-called invalid events
+        if event.sender in config.meow.validation_override:
+            return
+
         if event.type == EventTypes.Message:
             strings = ["body", "msgtype"]
 
@@ -253,12 +282,17 @@ POWER_LEVELS_SCHEMA = {
 }
 
 
+class Mentions(RequestBodyModel):
+    user_ids: List[StrictStr] = Field(default_factory=list)
+    room: StrictBool = False
+
+
 # This could return something newer than Draft 7, but that's the current "latest"
 # validator.
-def _create_power_level_validator() -> Type[jsonschema.Draft7Validator]:
-    validator = jsonschema.validators.validator_for(POWER_LEVELS_SCHEMA)
+def _create_validator(schema: JsonDict) -> Type[jsonschema.Draft7Validator]:
+    validator = jsonschema.validators.validator_for(schema)
 
-    # by default jsonschema does not consider a frozendict to be an object so
+    # by default jsonschema does not consider a immutabledict to be an object so
     # we need to use a custom type checker
     # https://python-jsonschema.readthedocs.io/en/stable/validate/?highlight=object#validating-with-additional-types
     type_checker = validator.TYPE_CHECKER.redefine(
@@ -268,4 +302,4 @@ def _create_power_level_validator() -> Type[jsonschema.Draft7Validator]:
     return jsonschema.validators.extend(validator, type_checker=type_checker)
 
 
-plValidator = _create_power_level_validator()
+POWER_LEVELS_VALIDATOR = _create_validator(POWER_LEVELS_SCHEMA)

synapse/federation/federation_client.py

@@ -61,6 +61,7 @@ from synapse.federation.federation_base import (
     event_from_pdu_json,
 )
 from synapse.federation.transport.client import SendJoinResponse
+from synapse.http.client import is_unknown_endpoint
 from synapse.http.types import QueryParams
 from synapse.logging.opentracing import SynapseTags, log_kv, set_tag, tag_args, trace
 from synapse.types import JsonDict, UserID, get_domain_from_id
@@ -759,43 +760,6 @@ class FederationClient(FederationBase):
 
         return signed_auth
 
-    def _is_unknown_endpoint(
-        self, e: HttpResponseException, synapse_error: Optional[SynapseError] = None
-    ) -> bool:
-        """
-        Returns true if the response was due to an endpoint being unimplemented.
-
-        Args:
-            e: The error response received from the remote server.
-            synapse_error: The above error converted to a SynapseError. This is
-                automatically generated if not provided.
-
-        """
-        if synapse_error is None:
-            synapse_error = e.to_synapse_error()
-        # MSC3743 specifies that servers should return a 404 or 405 with an errcode
-        # of M_UNRECOGNIZED when they receive a request to an unknown endpoint or
-        # to an unknown method, respectively.
-        #
-        # Older versions of servers don't properly handle this. This needs to be
-        # rather specific as some endpoints truly do return 404 errors.
-        return (
-            # 404 is an unknown endpoint, 405 is a known endpoint, but unknown method.
-            (e.code == 404 or e.code == 405)
-            and (
-                # Older Dendrites returned a text or empty body.
-                # Older Conduit returned an empty body.
-                not e.response
-                or e.response == b"404 page not found"
-                # The proper response JSON with M_UNRECOGNIZED errcode.
-                or synapse_error.errcode == Codes.UNRECOGNIZED
-            )
-        ) or (
-            # Older Synapses returned a 400 error.
-            e.code == 400
-            and synapse_error.errcode == Codes.UNRECOGNIZED
-        )
-
     async def _try_destination_list(
         self,
         description: str,
@@ -887,7 +851,7 @@ class FederationClient(FederationBase):
                 elif 400 <= e.code < 500 and synapse_error.errcode in failover_errcodes:
                     failover = True
 
-                elif failover_on_unknown_endpoint and self._is_unknown_endpoint(
+                elif failover_on_unknown_endpoint and is_unknown_endpoint(
                     e, synapse_error
                 ):
                     failover = True
@@ -1223,7 +1187,7 @@ class FederationClient(FederationBase):
             # If an error is received that is due to an unrecognised endpoint,
             # fallback to the v1 endpoint. Otherwise, consider it a legitimate error
             # and raise.
-            if not self._is_unknown_endpoint(e):
+            if not is_unknown_endpoint(e):
                 raise
 
         logger.debug("Couldn't send_join with the v2 API, falling back to the v1 API")
@@ -1297,7 +1261,7 @@ class FederationClient(FederationBase):
             # fallback to the v1 endpoint if the room uses old-style event IDs.
             # Otherwise, consider it a legitimate error and raise.
             err = e.to_synapse_error()
-            if self._is_unknown_endpoint(e, err):
+            if is_unknown_endpoint(e, err):
                 if room_version.event_format != EventFormatVersions.ROOM_V1_V2:
                     raise SynapseError(
                         400,
@@ -1358,7 +1322,7 @@ class FederationClient(FederationBase):
             # If an error is received that is due to an unrecognised endpoint,
             # fallback to the v1 endpoint. Otherwise, consider it a legitimate error
             # and raise.
-            if not self._is_unknown_endpoint(e):
+            if not is_unknown_endpoint(e):
                 raise
 
         logger.debug("Couldn't send_leave with the v2 API, falling back to the v1 API")
@@ -1629,7 +1593,7 @@ class FederationClient(FederationBase):
                 # If an error is received that is due to an unrecognised endpoint,
                 # fallback to the unstable endpoint. Otherwise, consider it a
                 # legitimate error and raise.
-                if not self._is_unknown_endpoint(e):
+                if not is_unknown_endpoint(e):
                     raise
 
                 logger.debug(

synapse/federation/federation_server.py

@@ -86,7 +86,7 @@ from synapse.storage.databases.main.lock import Lock
 from synapse.storage.databases.main.roommember import extract_heroes_from_room_summary
 from synapse.storage.roommember import MemberSummary
 from synapse.types import JsonDict, StateMap, get_domain_from_id
-from synapse.util import json_decoder, unwrapFirstError
+from synapse.util import unwrapFirstError
 from synapse.util.async_helpers import Linearizer, concurrently_execute, gather_results
 from synapse.util.caches.response_cache import ResponseCache
 from synapse.util.stringutils import parse_server_name
@@ -135,6 +135,7 @@ class FederationServer(FederationBase):
         self.state = hs.get_state_handler()
         self._event_auth_handler = hs.get_event_auth_handler()
         self._room_member_handler = hs.get_room_member_handler()
+        self._e2e_keys_handler = hs.get_e2e_keys_handler()
 
         self._state_storage_controller = hs.get_storage_controllers().state
 
@@ -1012,15 +1013,14 @@ class FederationServer(FederationBase):
                 query.append((user_id, device_id, algorithm))
 
         log_kv({"message": "Claiming one time keys.", "user, device pairs": query})
-        results = await self.store.claim_e2e_one_time_keys(query)
+        results = await self._e2e_keys_handler.claim_local_one_time_keys(query)
 
-        json_result: Dict[str, Dict[str, dict]] = {}
-        for user_id, device_keys in results.items():
-            for device_id, keys in device_keys.items():
-                for key_id, json_str in keys.items():
-                    json_result.setdefault(user_id, {})[device_id] = {
-                        key_id: json_decoder.decode(json_str)
-                    }
+        json_result: Dict[str, Dict[str, Dict[str, JsonDict]]] = {}
+        for result in results:
+            for user_id, device_keys in result.items():
+                for device_id, keys in device_keys.items():
+                    for key_id, key in keys.items():
+                        json_result.setdefault(user_id, {})[device_id] = {key_id: key}
 
         logger.info(
             "Claimed one-time-keys: %s",

synapse/federation/send_queue.py

@@ -244,7 +244,7 @@ class FederationRemoteSendQueue(AbstractFederationSender):
 
         self.notifier.on_new_replication_data()
 
-    def send_device_messages(self, destination: str, immediate: bool = False) -> None:
+    def send_device_messages(self, destination: str, immediate: bool = True) -> None:
         """As per FederationSender"""
         # We don't need to replicate this as it gets sent down a different
         # stream.

synapse/federation/sender/__init__.py

@@ -11,6 +11,119 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+"""
+The Federation Sender is responsible for sending Persistent Data Units (PDUs)
+and Ephemeral Data Units (EDUs) to other homeservers using
+the `/send` Federation API.
+
+
+## How do PDUs get sent?
+
+The Federation Sender is made aware of new PDUs due to `FederationSender.notify_new_events`.
+When the sender is notified about a newly-persisted PDU that originates from this homeserver
+and is not an out-of-band event, we pass the PDU to the `_PerDestinationQueue` for each
+remote homeserver that is in the room at that point in the DAG.
+
+
+### Per-Destination Queues
+
+There is one `PerDestinationQueue` per 'destination' homeserver.
+The `PerDestinationQueue` maintains the following information about the destination:
+
+- whether the destination is currently in [catch-up mode (see below)](#catch-up-mode);
+- a queue of PDUs to be sent to the destination; and
+- a queue of EDUs to be sent to the destination (not considered in this section).
+
+Upon a new PDU being enqueued, `attempt_new_transaction` is called to start a new
+transaction if there is not already one in progress.
+
+
+### Transactions and the Transaction Transmission Loop
+
+Each federation HTTP request to the `/send` endpoint is referred to as a 'transaction'.
+The body of the HTTP request contains a list of PDUs and EDUs to send to the destination.
+
+The *Transaction Transmission Loop* (`_transaction_transmission_loop`) is responsible
+for emptying the queued PDUs (and EDUs) from a `PerDestinationQueue` by sending
+them to the destination.
+
+There can only be one transaction in flight for a given destination at any time.
+(Other than preventing us from overloading the destination, this also makes it easier to
+reason about because we process events sequentially for each destination.
+This is useful for *Catch-Up Mode*, described later.)
+
+The loop continues so long as there is anything to send. At each iteration of the loop, we:
+
+- dequeue up to 50 PDUs (and up to 100 EDUs).
+- make the `/send` request to the destination homeserver with the dequeued PDUs and EDUs.
+- if successful, make note of the fact that we succeeded in transmitting PDUs up to
+  the given `stream_ordering` of the latest PDU by
+- if unsuccessful, back off from the remote homeserver for some time.
+  If we have been unsuccessful for too long (when the backoff interval grows to exceed 1 hour),
+  the in-memory queues are emptied and we enter [*Catch-Up Mode*, described below](#catch-up-mode).
+
+
+### Catch-Up Mode
+
+When the `PerDestinationQueue` has the catch-up flag set, the *Catch-Up Transmission Loop*
+(`_catch_up_transmission_loop`) is used in lieu of the regular `_transaction_transmission_loop`.
+(Only once the catch-up mode has been exited can the regular tranaction transmission behaviour
+be resumed.)
+
+*Catch-Up Mode*, entered upon Synapse startup or once a homeserver has fallen behind due to
+connection problems, is responsible for sending PDUs that have been missed by the destination
+homeserver. (PDUs can be missed because the `PerDestinationQueue` is volatile — i.e. resets
+on startup — and it does not hold PDUs forever if `/send` requests to the destination fail.)
+
+The catch-up mechanism makes use of the `last_successful_stream_ordering` column in the
+`destinations` table (which gives the `stream_ordering` of the most recent successfully
+sent PDU) and the `stream_ordering` column in the `destination_rooms` table (which gives,
+for each room, the `stream_ordering` of the most recent PDU that needs to be sent to this
+destination).
+
+Each iteration of the loop pulls out 50 `destination_rooms` entries with the oldest
+`stream_ordering`s that are greater than the `last_successful_stream_ordering`.
+In other words, from the set of latest PDUs in each room to be sent to the destination,
+the 50 oldest such PDUs are pulled out.
+
+These PDUs could, in principle, now be directly sent to the destination. However, as an
+optimisation intended to prevent overloading destination homeservers, we instead attempt
+to send the latest forward extremities so long as the destination homeserver is still
+eligible to receive those.
+This reduces load on the destination **in aggregate** because all Synapse homeservers
+will behave according to this principle and therefore avoid sending lots of different PDUs
+at different points in the DAG to a recovering homeserver.
+*This optimisation is not currently valid in rooms which are partial-state on this homeserver,
+since we are unable to determine whether the destination homeserver is eligible to receive
+the latest forward extremities unless this homeserver sent those PDUs — in this case, we
+just send the latest PDUs originating from this server and skip this optimisation.*
+
+Whilst PDUs are sent through this mechanism, the position of `last_successful_stream_ordering`
+is advanced as normal.
+Once there are no longer any rooms containing outstanding PDUs to be sent to the destination
+*that are not already in the `PerDestinationQueue` because they arrived since Catch-Up Mode
+was enabled*, Catch-Up Mode is exited and we return to `_transaction_transmission_loop`.
+
+
+#### A note on failures and back-offs
+
+If a remote server is unreachable over federation, we back off from that server,
+with an exponentially-increasing retry interval.
+Whilst we don't automatically retry after the interval, we prevent making new attempts
+until such time as the back-off has cleared.
+Once the back-off is cleared and a new PDU or EDU arrives for transmission, the transmission
+loop resumes and empties the queue by making federation requests.
+
+If the backoff grows too large (> 1 hour), the in-memory queue is emptied (to prevent
+unbounded growth) and Catch-Up Mode is entered.
+
+It is worth noting that the back-off for a remote server is cleared once an inbound
+request from that remote server is received (see `notify_remote_server_up`).
+At this point, the transaction transmission loop is also started up, to proactively
+send missed PDUs and EDUs to the destination (i.e. you don't need to wait for a new PDU
+or EDU, destined for that destination, to be created in order to send out missed PDUs and
+EDUs).
+"""
 
 import abc
 import logging
@@ -783,7 +896,7 @@ class FederationSender(AbstractFederationSender):
         else:
             queue.send_edu(edu)
 
-    def send_device_messages(self, destination: str, immediate: bool = False) -> None:
+    def send_device_messages(self, destination: str, immediate: bool = True) -> None:
         if destination == self.server_name:
             logger.warning("Not sending device update to ourselves")
             return

synapse/federation/transport/server/__init__.py

@@ -108,6 +108,7 @@ class PublicRoomList(BaseFederationServlet):
     """
 
     PATH = "/publicRooms"
+    CATEGORY = "Federation requests"
 
     def __init__(
         self,
@@ -212,6 +213,7 @@ class OpenIdUserInfo(BaseFederationServlet):
     """
 
     PATH = "/openid/userinfo"
+    CATEGORY = "Federation requests"
 
     REQUIRE_AUTH = False
 

synapse/federation/transport/server/federation.py

@@ -70,6 +70,7 @@ class BaseFederationServerServlet(BaseFederationServlet):
 
 class FederationSendServlet(BaseFederationServerServlet):
     PATH = "/send/(?P<transaction_id>[^/]*)/?"
+    CATEGORY = "Inbound federation transaction request"
 
     # We ratelimit manually in the handler as we queue up the requests and we
     # don't want to fill up the ratelimiter with blocked requests.
@@ -138,6 +139,7 @@ class FederationSendServlet(BaseFederationServerServlet):
 
 class FederationEventServlet(BaseFederationServerServlet):
     PATH = "/event/(?P<event_id>[^/]*)/?"
+    CATEGORY = "Federation requests"
 
     # This is when someone asks for a data item for a given server data_id pair.
     async def on_GET(
@@ -152,6 +154,7 @@ class FederationEventServlet(BaseFederationServerServlet):
 
 class FederationStateV1Servlet(BaseFederationServerServlet):
     PATH = "/state/(?P<room_id>[^/]*)/?"
+    CATEGORY = "Federation requests"
 
     # This is when someone asks for all data for a given room.
     async def on_GET(
@@ -170,6 +173,7 @@ class FederationStateV1Servlet(BaseFederationServerServlet):
 
 class FederationStateIdsServlet(BaseFederationServerServlet):
     PATH = "/state_ids/(?P<room_id>[^/]*)/?"
+    CATEGORY = "Federation requests"
 
     async def on_GET(
         self,
@@ -187,6 +191,7 @@ class FederationStateIdsServlet(BaseFederationServerServlet):
 
 class FederationBackfillServlet(BaseFederationServerServlet):
     PATH = "/backfill/(?P<room_id>[^/]*)/?"
+    CATEGORY = "Federation requests"
 
     async def on_GET(
         self,
@@ -225,6 +230,7 @@ class FederationTimestampLookupServlet(BaseFederationServerServlet):
     """
 
     PATH = "/timestamp_to_event/(?P<room_id>[^/]*)/?"
+    CATEGORY = "Federation requests"
 
     async def on_GET(
         self,
@@ -246,6 +252,7 @@ class FederationTimestampLookupServlet(BaseFederationServerServlet):
 
 class FederationQueryServlet(BaseFederationServerServlet):
     PATH = "/query/(?P<query_type>[^/]*)"
+    CATEGORY = "Federation requests"
 
     # This is when we receive a server-server Query
     async def on_GET(
@@ -262,6 +269,7 @@ class FederationQueryServlet(BaseFederationServerServlet):
 
 class FederationMakeJoinServlet(BaseFederationServerServlet):
     PATH = "/make_join/(?P<room_id>[^/]*)/(?P<user_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_GET(
         self,
@@ -297,6 +305,7 @@ class FederationMakeJoinServlet(BaseFederationServerServlet):
 
 class FederationMakeLeaveServlet(BaseFederationServerServlet):
     PATH = "/make_leave/(?P<room_id>[^/]*)/(?P<user_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_GET(
         self,
@@ -312,6 +321,7 @@ class FederationMakeLeaveServlet(BaseFederationServerServlet):
 
 class FederationV1SendLeaveServlet(BaseFederationServerServlet):
     PATH = "/send_leave/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_PUT(
         self,
@@ -327,6 +337,7 @@ class FederationV1SendLeaveServlet(BaseFederationServerServlet):
 
 class FederationV2SendLeaveServlet(BaseFederationServerServlet):
     PATH = "/send_leave/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     PREFIX = FEDERATION_V2_PREFIX
 
@@ -344,6 +355,7 @@ class FederationV2SendLeaveServlet(BaseFederationServerServlet):
 
 class FederationMakeKnockServlet(BaseFederationServerServlet):
     PATH = "/make_knock/(?P<room_id>[^/]*)/(?P<user_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_GET(
         self,
@@ -366,6 +378,7 @@ class FederationMakeKnockServlet(BaseFederationServerServlet):
 
 class FederationV1SendKnockServlet(BaseFederationServerServlet):
     PATH = "/send_knock/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_PUT(
         self,
@@ -381,6 +394,7 @@ class FederationV1SendKnockServlet(BaseFederationServerServlet):
 
 class FederationEventAuthServlet(BaseFederationServerServlet):
     PATH = "/event_auth/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_GET(
         self,
@@ -395,6 +409,7 @@ class FederationEventAuthServlet(BaseFederationServerServlet):
 
 class FederationV1SendJoinServlet(BaseFederationServerServlet):
     PATH = "/send_join/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_PUT(
         self,
@@ -412,6 +427,7 @@ class FederationV1SendJoinServlet(BaseFederationServerServlet):
 
 class FederationV2SendJoinServlet(BaseFederationServerServlet):
     PATH = "/send_join/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     PREFIX = FEDERATION_V2_PREFIX
 
@@ -455,6 +471,7 @@ class FederationV2SendJoinServlet(BaseFederationServerServlet):
 
 class FederationV1InviteServlet(BaseFederationServerServlet):
     PATH = "/invite/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_PUT(
         self,
@@ -479,6 +496,7 @@ class FederationV1InviteServlet(BaseFederationServerServlet):
 
 class FederationV2InviteServlet(BaseFederationServerServlet):
     PATH = "/invite/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     PREFIX = FEDERATION_V2_PREFIX
 
@@ -515,6 +533,7 @@ class FederationV2InviteServlet(BaseFederationServerServlet):
 
 class FederationThirdPartyInviteExchangeServlet(BaseFederationServerServlet):
     PATH = "/exchange_third_party_invite/(?P<room_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_PUT(
         self,
@@ -529,6 +548,7 @@ class FederationThirdPartyInviteExchangeServlet(BaseFederationServerServlet):
 
 class FederationClientKeysQueryServlet(BaseFederationServerServlet):
     PATH = "/user/keys/query"
+    CATEGORY = "Federation requests"
 
     async def on_POST(
         self, origin: str, content: JsonDict, query: Dict[bytes, List[bytes]]
@@ -538,6 +558,7 @@ class FederationClientKeysQueryServlet(BaseFederationServerServlet):
 
 class FederationUserDevicesQueryServlet(BaseFederationServerServlet):
     PATH = "/user/devices/(?P<user_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_GET(
         self,
@@ -551,6 +572,7 @@ class FederationUserDevicesQueryServlet(BaseFederationServerServlet):
 
 class FederationClientKeysClaimServlet(BaseFederationServerServlet):
     PATH = "/user/keys/claim"
+    CATEGORY = "Federation requests"
 
     async def on_POST(
         self, origin: str, content: JsonDict, query: Dict[bytes, List[bytes]]
@@ -561,6 +583,7 @@ class FederationClientKeysClaimServlet(BaseFederationServerServlet):
 
 class FederationGetMissingEventsServlet(BaseFederationServerServlet):
     PATH = "/get_missing_events/(?P<room_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     async def on_POST(
         self,
@@ -586,6 +609,7 @@ class FederationGetMissingEventsServlet(BaseFederationServerServlet):
 
 class On3pidBindServlet(BaseFederationServerServlet):
     PATH = "/3pid/onbind"
+    CATEGORY = "Federation requests"
 
     REQUIRE_AUTH = False
 
@@ -618,6 +642,7 @@ class On3pidBindServlet(BaseFederationServerServlet):
 
 class FederationVersionServlet(BaseFederationServlet):
     PATH = "/version"
+    CATEGORY = "Federation requests"
 
     REQUIRE_AUTH = False
 
@@ -640,6 +665,7 @@ class FederationVersionServlet(BaseFederationServlet):
 
 class FederationRoomHierarchyServlet(BaseFederationServlet):
     PATH = "/hierarchy/(?P<room_id>[^/]*)"
+    CATEGORY = "Federation requests"
 
     def __init__(
         self,
@@ -672,6 +698,7 @@ class RoomComplexityServlet(BaseFederationServlet):
 
     PATH = "/rooms/(?P<room_id>[^/]*)/complexity"
     PREFIX = FEDERATION_UNSTABLE_PREFIX
+    CATEGORY = "Federation requests (unstable)"
 
     def __init__(
         self,

synapse/handlers/account_validity.py

@@ -15,9 +15,7 @@
 import email.mime.multipart
 import email.utils
 import logging
-from typing import TYPE_CHECKING, Awaitable, Callable, List, Optional, Tuple
-
-from twisted.web.http import Request
+from typing import TYPE_CHECKING, List, Optional, Tuple
 
 from synapse.api.errors import AuthError, StoreError, SynapseError
 from synapse.metrics.background_process_metrics import wrap_as_background_process
@@ -30,25 +28,17 @@ if TYPE_CHECKING:
 
 logger = logging.getLogger(__name__)
 
-# Types for callbacks to be registered via the module api
-IS_USER_EXPIRED_CALLBACK = Callable[[str], Awaitable[Optional[bool]]]
-ON_USER_REGISTRATION_CALLBACK = Callable[[str], Awaitable]
-# Temporary hooks to allow for a transition from `/_matrix/client` endpoints
-# to `/_synapse/client/account_validity`. See `register_account_validity_callbacks`.
-ON_LEGACY_SEND_MAIL_CALLBACK = Callable[[str], Awaitable]
-ON_LEGACY_RENEW_CALLBACK = Callable[[str], Awaitable[Tuple[bool, bool, int]]]
-ON_LEGACY_ADMIN_REQUEST = Callable[[Request], Awaitable]
-
 
 class AccountValidityHandler:
     def __init__(self, hs: "HomeServer"):
         self.hs = hs
         self.config = hs.config
-        self.store = self.hs.get_datastores().main
-        self.send_email_handler = self.hs.get_send_email_handler()
-        self.clock = self.hs.get_clock()
+        self.store = hs.get_datastores().main
+        self.send_email_handler = hs.get_send_email_handler()
+        self.clock = hs.get_clock()
 
-        self._app_name = self.hs.config.email.email_app_name
+        self._app_name = hs.config.email.email_app_name
+        self._module_api_callbacks = hs.get_module_api_callbacks().account_validity
 
         self._account_validity_enabled = (
             hs.config.account_validity.account_validity_enabled
@@ -78,69 +68,6 @@ class AccountValidityHandler:
             if hs.config.worker.run_background_tasks:
                 self.clock.looping_call(self._send_renewal_emails, 30 * 60 * 1000)
 
-        self._is_user_expired_callbacks: List[IS_USER_EXPIRED_CALLBACK] = []
-        self._on_user_registration_callbacks: List[ON_USER_REGISTRATION_CALLBACK] = []
-        self._on_legacy_send_mail_callback: Optional[
-            ON_LEGACY_SEND_MAIL_CALLBACK
-        ] = None
-        self._on_legacy_renew_callback: Optional[ON_LEGACY_RENEW_CALLBACK] = None
-
-        # The legacy admin requests callback isn't a protected attribute because we need
-        # to access it from the admin servlet, which is outside of this handler.
-        self.on_legacy_admin_request_callback: Optional[ON_LEGACY_ADMIN_REQUEST] = None
-
-    def register_account_validity_callbacks(
-        self,
-        is_user_expired: Optional[IS_USER_EXPIRED_CALLBACK] = None,
-        on_user_registration: Optional[ON_USER_REGISTRATION_CALLBACK] = None,
-        on_legacy_send_mail: Optional[ON_LEGACY_SEND_MAIL_CALLBACK] = None,
-        on_legacy_renew: Optional[ON_LEGACY_RENEW_CALLBACK] = None,
-        on_legacy_admin_request: Optional[ON_LEGACY_ADMIN_REQUEST] = None,
-    ) -> None:
-        """Register callbacks from module for each hook."""
-        if is_user_expired is not None:
-            self._is_user_expired_callbacks.append(is_user_expired)
-
-        if on_user_registration is not None:
-            self._on_user_registration_callbacks.append(on_user_registration)
-
-        # The builtin account validity feature exposes 3 endpoints (send_mail, renew, and
-        # an admin one). As part of moving the feature into a module, we need to change
-        # the path from /_matrix/client/unstable/account_validity/... to
-        # /_synapse/client/account_validity, because:
-        #
-        #   * the feature isn't part of the Matrix spec thus shouldn't live under /_matrix
-        #   * the way we register servlets means that modules can't register resources
-        #     under /_matrix/client
-        #
-        # We need to allow for a transition period between the old and new endpoints
-        # in order to allow for clients to update (and for emails to be processed).
-        #
-        # Once the email-account-validity module is loaded, it will take control of account
-        # validity by moving the rows from our `account_validity` table into its own table.
-        #
-        # Therefore, we need to allow modules (in practice just the one implementing the
-        # email-based account validity) to temporarily hook into the legacy endpoints so we
-        # can route the traffic coming into the old endpoints into the module, which is
-        # why we have the following three temporary hooks.
-        if on_legacy_send_mail is not None:
-            if self._on_legacy_send_mail_callback is not None:
-                raise RuntimeError("Tried to register on_legacy_send_mail twice")
-
-            self._on_legacy_send_mail_callback = on_legacy_send_mail
-
-        if on_legacy_renew is not None:
-            if self._on_legacy_renew_callback is not None:
-                raise RuntimeError("Tried to register on_legacy_renew twice")
-
-            self._on_legacy_renew_callback = on_legacy_renew
-
-        if on_legacy_admin_request is not None:
-            if self.on_legacy_admin_request_callback is not None:
-                raise RuntimeError("Tried to register on_legacy_admin_request twice")
-
-            self.on_legacy_admin_request_callback = on_legacy_admin_request
-
     async def is_user_expired(self, user_id: str) -> bool:
         """Checks if a user has expired against third-party modules.
 
@@ -150,7 +77,7 @@ class AccountValidityHandler:
         Returns:
             Whether the user has expired.
         """
-        for callback in self._is_user_expired_callbacks:
+        for callback in self._module_api_callbacks.is_user_expired_callbacks:
             expired = await delay_cancellation(callback(user_id))
             if expired is not None:
                 return expired
@@ -168,7 +95,7 @@ class AccountValidityHandler:
         Args:
             user_id: The ID of the newly registered user.
         """
-        for callback in self._on_user_registration_callbacks:
+        for callback in self._module_api_callbacks.on_user_registration_callbacks:
             await callback(user_id)
 
     @wrap_as_background_process("send_renewals")
@@ -198,8 +125,8 @@ class AccountValidityHandler:
         """
         # If a module supports sending a renewal email from here, do that, otherwise do
         # the legacy dance.
-        if self._on_legacy_send_mail_callback is not None:
-            await self._on_legacy_send_mail_callback(user_id)
+        if self._module_api_callbacks.on_legacy_send_mail_callback is not None:
+            await self._module_api_callbacks.on_legacy_send_mail_callback(user_id)
             return
 
         if not self._account_validity_renew_by_email_enabled:
@@ -336,8 +263,10 @@ class AccountValidityHandler:
         """
         # If a module supports triggering a renew from here, do that, otherwise do the
         # legacy dance.
-        if self._on_legacy_renew_callback is not None:
-            return await self._on_legacy_renew_callback(renewal_token)
+        if self._module_api_callbacks.on_legacy_renew_callback is not None:
+            return await self._module_api_callbacks.on_legacy_renew_callback(
+                renewal_token
+            )
 
         try:
             (

synapse/handlers/appservice.py

@@ -12,7 +12,17 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
-from typing import TYPE_CHECKING, Collection, Dict, Iterable, List, Optional, Union
+from typing import (
+    TYPE_CHECKING,
+    Collection,
+    Dict,
+    Iterable,
+    List,
+    Mapping,
+    Optional,
+    Tuple,
+    Union,
+)
 
 from prometheus_client import Counter
 
@@ -829,3 +839,126 @@ class ApplicationServicesHandler:
         if unknown_user:
             return await self.query_user_exists(user_id)
         return True
+
+    async def claim_e2e_one_time_keys(
+        self, query: Iterable[Tuple[str, str, str]]
+    ) -> Tuple[
+        Iterable[Dict[str, Dict[str, Dict[str, JsonDict]]]], List[Tuple[str, str, str]]
+    ]:
+        """Claim one time keys from application services.
+
+        Users which are exclusively owned by an application service are sent a
+        key claim request to check if the application service provides keys
+        directly.
+
+        Args:
+            query: An iterable of tuples of (user ID, device ID, algorithm).
+
+        Returns:
+            A tuple of:
+                An iterable of maps of user ID -> a map device ID -> a map of key ID -> JSON bytes.
+
+                A copy of the input which has not been fulfilled (either because
+                they are not appservice users or the appservice does not support
+                providing OTKs).
+        """
+        services = self.store.get_app_services()
+
+        # Partition the users by appservice.
+        query_by_appservice: Dict[str, List[Tuple[str, str, str]]] = {}
+        missing = []
+        for user_id, device, algorithm in query:
+            if not self.store.get_if_app_services_interested_in_user(user_id):
+                missing.append((user_id, device, algorithm))
+                continue
+
+            # Find the associated appservice.
+            for service in services:
+                if service.is_exclusive_user(user_id):
+                    query_by_appservice.setdefault(service.id, []).append(
+                        (user_id, device, algorithm)
+                    )
+                    continue
+
+        # Query each service in parallel.
+        results = await make_deferred_yieldable(
+            defer.DeferredList(
+                [
+                    run_in_background(
+                        self.appservice_api.claim_client_keys,
+                        # We know this must be an app service.
+                        self.store.get_app_service_by_id(service_id),  # type: ignore[arg-type]
+                        service_query,
+                    )
+                    for service_id, service_query in query_by_appservice.items()
+                ],
+                consumeErrors=True,
+            )
+        )
+
+        # Patch together the results -- they are all independent (since they
+        # require exclusive control over the users). They get returned as a list
+        # and the caller combines them.
+        claimed_keys: List[Dict[str, Dict[str, Dict[str, JsonDict]]]] = []
+        for success, result in results:
+            if success:
+                claimed_keys.append(result[0])
+                missing.extend(result[1])
+
+        return claimed_keys, missing
+
+    async def query_keys(
+        self, query: Mapping[str, Optional[List[str]]]
+    ) -> Dict[str, Dict[str, Dict[str, JsonDict]]]:
+        """Query application services for device keys.
+
+        Users which are exclusively owned by an application service are queried
+        for keys to check if the application service provides keys directly.
+
+        Args:
+            query: map from user_id to a list of devices to query
+
+        Returns:
+            A map from user_id -> device_id -> device details
+        """
+        services = self.store.get_app_services()
+
+        # Partition the users by appservice.
+        query_by_appservice: Dict[str, Dict[str, List[str]]] = {}
+        for user_id, device_ids in query.items():
+            if not self.store.get_if_app_services_interested_in_user(user_id):
+                continue
+
+            # Find the associated appservice.
+            for service in services:
+                if service.is_exclusive_user(user_id):
+                    query_by_appservice.setdefault(service.id, {})[user_id] = (
+                        device_ids or []
+                    )
+                    continue
+
+        # Query each service in parallel.
+        results = await make_deferred_yieldable(
+            defer.DeferredList(
+                [
+                    run_in_background(
+                        self.appservice_api.query_keys,
+                        # We know this must be an app service.
+                        self.store.get_app_service_by_id(service_id),  # type: ignore[arg-type]
+                        service_query,
+                    )
+                    for service_id, service_query in query_by_appservice.items()
+                ],
+                consumeErrors=True,
+            )
+        )
+
+        # Patch together the results -- they are all independent (since they
+        # require exclusive control over the users). They get returned as a single
+        # dictionary.
+        key_queries: Dict[str, Dict[str, Dict[str, JsonDict]]] = {}
+        for success, result in results:
+            if success:
+                key_queries.update(result)
+
+        return key_queries

synapse/handlers/auth.py

@@ -1504,8 +1504,10 @@ class AuthHandler:
         )
 
         # delete pushers associated with this access token
+        # XXX(quenting): This is only needed until the 'set_device_id_for_pushers'
+        # background update completes.
         if token.token_id is not None:
-            await self.hs.get_pusherpool().remove_pushers_by_access_token(
+            await self.hs.get_pusherpool().remove_pushers_by_access_tokens(
                 token.user_id, (token.token_id,)
             )
 
@@ -1535,7 +1537,9 @@ class AuthHandler:
             )
 
         # delete pushers associated with the access tokens
-        await self.hs.get_pusherpool().remove_pushers_by_access_token(
+        # XXX(quenting): This is only needed until the 'set_device_id_for_pushers'
+        # background update completes.
+        await self.hs.get_pusherpool().remove_pushers_by_access_tokens(
             user_id, (token_id for _, token_id, _ in tokens_and_devices)
         )
 

synapse/handlers/device.py

@@ -503,6 +503,8 @@ class DeviceHandler(DeviceWorkerHandler):
             else:
                 raise
 
+        await self.hs.get_pusherpool().remove_pushers_by_devices(user_id, device_ids)
+
         # Delete data specific to each device. Not optimised as it is not
         # considered as part of a critical path.
         for device_id in device_ids:

synapse/handlers/directory.py

@@ -71,9 +71,11 @@ class DirectoryHandler:
     ) -> None:
         # general association creation for both human users and app services
 
-        for wchar in string.whitespace:
-            if wchar in room_alias.localpart:
-                raise SynapseError(400, "Invalid characters in room alias")
+        # meow: allow specific users to include anything in room aliases
+        if creator not in self.config.meow.validation_override:
+            for wchar in string.whitespace:
+                if wchar in room_alias.localpart:
+                    raise SynapseError(400, "Invalid characters in room alias")
 
         if ":" in room_alias.localpart:
             raise SynapseError(400, "Invalid character in room alias localpart: ':'.")
@@ -118,7 +120,10 @@ class DirectoryHandler:
         user_id = requester.user.to_string()
         room_alias_str = room_alias.to_string()
 
-        if len(room_alias_str) > MAX_ALIAS_LENGTH:
+        if (
+            user_id not in self.hs.config.meow.validation_override
+            and len(room_alias_str) > MAX_ALIAS_LENGTH
+        ):
             raise SynapseError(
                 400,
                 "Can't create aliases longer than %s characters" % MAX_ALIAS_LENGTH,

synapse/handlers/e2e_keys.py

@@ -13,7 +13,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
 import logging
 from typing import TYPE_CHECKING, Any, Dict, Iterable, List, Mapping, Optional, Tuple
 
@@ -53,6 +52,7 @@ class E2eKeysHandler:
         self.store = hs.get_datastores().main
         self.federation = hs.get_federation_client()
         self.device_handler = hs.get_device_handler()
+        self._appservice_handler = hs.get_application_service_handler()
         self.is_mine = hs.is_mine
         self.clock = hs.get_clock()
 
@@ -88,6 +88,13 @@ class E2eKeysHandler:
             max_count=10,
         )
 
+        self._query_appservices_for_otks = (
+            hs.config.experimental.msc3983_appservice_otk_claims
+        )
+        self._query_appservices_for_keys = (
+            hs.config.experimental.msc3984_appservice_key_query
+        )
+
     @trace
     @cancellable
     async def query_devices(
@@ -493,6 +500,19 @@ class E2eKeysHandler:
             local_query, include_displaynames
         )
 
+        # Check if the application services have any additional results.
+        if self._query_appservices_for_keys:
+            # Query the appservices for any keys.
+            appservice_results = await self._appservice_handler.query_keys(query)
+
+            # Merge results, overriding with what the appservice returned.
+            for user_id, devices in appservice_results.get("device_keys", {}).items():
+                # Copy the appservice device info over the homeserver device info, but
+                # don't completely overwrite it.
+                results.setdefault(user_id, {}).update(devices)
+
+            # TODO Handle cross-signing keys.
+
         # Build the result structure
         for user_id, device_keys in results.items():
             for device_id, device_info in device_keys.items():
@@ -542,6 +562,42 @@ class E2eKeysHandler:
 
         return ret
 
+    async def claim_local_one_time_keys(
+        self, local_query: List[Tuple[str, str, str]]
+    ) -> Iterable[Dict[str, Dict[str, Dict[str, JsonDict]]]]:
+        """Claim one time keys for local users.
+
+        1. Attempt to claim OTKs from the database.
+        2. Ask application services if they provide OTKs.
+        3. Attempt to fetch fallback keys from the database.
+
+        Args:
+            local_query: An iterable of tuples of (user ID, device ID, algorithm).
+
+        Returns:
+            An iterable of maps of user ID -> a map device ID -> a map of key ID -> JSON bytes.
+        """
+
+        otk_results, not_found = await self.store.claim_e2e_one_time_keys(local_query)
+
+        # If the application services have not provided any keys via the C-S
+        # API, query it directly for one-time keys.
+        if self._query_appservices_for_otks:
+            (
+                appservice_results,
+                not_found,
+            ) = await self._appservice_handler.claim_e2e_one_time_keys(not_found)
+        else:
+            appservice_results = []
+
+        # For each user that does not have a one-time keys available, see if
+        # there is a fallback key.
+        fallback_results = await self.store.claim_e2e_fallback_keys(not_found)
+
+        # Return the results in order, each item from the input query should
+        # only appear once in the combined list.
+        return (otk_results, *appservice_results, fallback_results)
+
     @trace
     async def claim_one_time_keys(
         self, query: Dict[str, Dict[str, Dict[str, str]]], timeout: Optional[int]
@@ -561,17 +617,18 @@ class E2eKeysHandler:
         set_tag("local_key_query", str(local_query))
         set_tag("remote_key_query", str(remote_queries))
 
-        results = await self.store.claim_e2e_one_time_keys(local_query)
+        results = await self.claim_local_one_time_keys(local_query)
 
         # A map of user ID -> device ID -> key ID -> key.
         json_result: Dict[str, Dict[str, Dict[str, JsonDict]]] = {}
+        for result in results:
+            for user_id, device_keys in result.items():
+                for device_id, keys in device_keys.items():
+                    for key_id, key in keys.items():
+                        json_result.setdefault(user_id, {})[device_id] = {key_id: key}
+
+        # Remote failures.
         failures: Dict[str, JsonDict] = {}
-        for user_id, device_keys in results.items():
-            for device_id, keys in device_keys.items():
-                for key_id, json_str in keys.items():
-                    json_result.setdefault(user_id, {})[device_id] = {
-                        key_id: json_decoder.decode(json_str)
-                    }
 
         @trace
         async def claim_client_keys(destination: str) -> None:

synapse/handlers/event_auth.py

@@ -63,9 +63,18 @@ class EventAuthHandler:
             self._store, event, batched_auth_events
         )
         auth_event_ids = event.auth_event_ids()
-        auth_events_by_id = await self._store.get_events(auth_event_ids)
+
         if batched_auth_events:
-            auth_events_by_id.update(batched_auth_events)
+            # Copy the batched auth events to avoid mutating them.
+            auth_events_by_id = dict(batched_auth_events)
+            needed_auth_event_ids = set(auth_event_ids) - set(batched_auth_events)
+            if needed_auth_event_ids:
+                auth_events_by_id.update(
+                    await self._store.get_events(needed_auth_event_ids)
+                )
+        else:
+            auth_events_by_id = await self._store.get_events(auth_event_ids)
+
         check_state_dependent_auth_rules(event, auth_events_by_id.values())
 
     def compute_auth_events(

synapse/handlers/events.py

@@ -159,15 +159,16 @@ class EventHandler:
         Returns:
             An event, or None if there is no event matching this ID.
         Raises:
-            SynapseError if there was a problem retrieving this event, or
-            AuthError if the user does not have the rights to inspect this
-            event.
+            AuthError: if the user does not have the rights to inspect this event.
         """
         redact_behaviour = (
             EventRedactBehaviour.as_is if show_redacted else EventRedactBehaviour.redact
         )
         event = await self.store.get_event(
-            event_id, check_room_id=room_id, redact_behaviour=redact_behaviour
+            event_id,
+            check_room_id=room_id,
+            redact_behaviour=redact_behaviour,
+            allow_none=True,
         )
 
         if not event:

synapse/handlers/federation.py

@@ -1436,7 +1436,7 @@ class FederationHandler:
                 room_version_obj, event_dict
             )
 
-            EventValidator().validate_builder(builder)
+            EventValidator().validate_builder(builder, self.hs.config)
 
             # Try several times, it could fail with PartialStateConflictError
             # in send_membership_event, cf comment in except block.
@@ -1605,7 +1605,7 @@ class FederationHandler:
         builder = self.event_builder_factory.for_room_version(
             room_version_obj, event_dict
         )
-        EventValidator().validate_builder(builder)
+        EventValidator().validate_builder(builder, self.hs.config)
 
         (
             event,
@@ -1949,27 +1949,25 @@ class FederationHandler:
             )
             for event in events:
                 for attempt in itertools.count():
+                    # We try a new destination on every iteration.
                     try:
-                        await self._federation_event_handler.update_state_for_partial_state_event(
-                            destination, event
-                        )
-                        break
-                    except FederationPullAttemptBackoffError as exc:
-                        # Log a warning about why we failed to process the event (the error message
-                        # for `FederationPullAttemptBackoffError` is pretty good)
-                        logger.warning("_sync_partial_state_room: %s", exc)
-                        # We do not record a failed pull attempt when we backoff fetching a missing
-                        # `prev_event` because not being able to fetch the `prev_events` just means
-                        # we won't be able to de-outlier the pulled event. But we can still use an
-                        # `outlier` in the state/auth chain for another event. So we shouldn't stop
-                        # a downstream event from trying to pull it.
-                        #
-                        # This avoids a cascade of backoff for all events in the DAG downstream from
-                        # one event backoff upstream.
-                    except FederationError as e:
-                        # TODO: We should `record_event_failed_pull_attempt` here,
-                        #   see https://github.com/matrix-org/synapse/issues/13700
+                        while True:
+                            try:
+                                await self._federation_event_handler.update_state_for_partial_state_event(
+                                    destination, event
+                                )
+                                break
+                            except FederationPullAttemptBackoffError as e:
+                                # We are in the backoff period for one of the event's
+                                # prev_events. Wait it out and try again after.
+                                logger.warning(
+                                    "%s; waiting for %d ms...", e, e.retry_after_ms
+                                )
+                                await self.clock.sleep(e.retry_after_ms / 1000)
 
+                        # Success, no need to try the rest of the destinations.
+                        break
+                    except FederationError as e:
                         if attempt == len(destinations) - 1:
                             # We have tried every remote server for this event. Give up.
                             # TODO(faster_joins) giving up isn't the right thing to do
@@ -1986,6 +1984,8 @@ class FederationHandler:
                                 destination,
                                 e,
                             )
+                            # TODO: We should `record_event_failed_pull_attempt` here,
+                            #   see https://github.com/matrix-org/synapse/issues/13700
                             raise
 
                         # Try the next remote server.

synapse/handlers/federation_event.py

@@ -140,6 +140,7 @@ class FederationEventHandler:
     """
 
     def __init__(self, hs: "HomeServer"):
+        self._clock = hs.get_clock()
         self._store = hs.get_datastores().main
         self._storage_controllers = hs.get_storage_controllers()
         self._state_storage_controller = self._storage_controllers.state
@@ -583,7 +584,7 @@ class FederationEventHandler:
 
             await self._check_event_auth(origin, event, context)
             if context.rejected:
-                raise SynapseError(400, "Join event was rejected")
+                raise SynapseError(403, "Join event was rejected")
 
             # the remote server is responsible for sending our join event to the rest
             # of the federation. Indeed, attempting to do so will result in problems
@@ -1038,8 +1039,8 @@ class FederationEventHandler:
 
         Raises:
             FederationPullAttemptBackoffError if we are are deliberately not attempting
-                to pull the given event over federation because we've already done so
-                recently and are backing off.
+                to pull one of the given event's `prev_event`s over federation because
+                we've already done so recently and are backing off.
             FederationError if we fail to get the state from the remote server after any
                 missing `prev_event`s.
         """
@@ -1053,13 +1054,22 @@ class FederationEventHandler:
         # If we've already recently attempted to pull this missing event, don't
         # try it again so soon. Since we have to fetch all of the prev_events, we can
         # bail early here if we find any to ignore.
-        prevs_to_ignore = await self._store.get_event_ids_to_not_pull_from_backoff(
-            room_id, missing_prevs
+        prevs_with_pull_backoff = (
+            await self._store.get_event_ids_to_not_pull_from_backoff(
+                room_id, missing_prevs
+            )
         )
-        if len(prevs_to_ignore) > 0:
+        if len(prevs_with_pull_backoff) > 0:
             raise FederationPullAttemptBackoffError(
-                event_ids=prevs_to_ignore,
-                message=f"While computing context for event={event_id}, not attempting to pull missing prev_event={prevs_to_ignore[0]} because we already tried to pull recently (backing off).",
+                event_ids=prevs_with_pull_backoff.keys(),
+                message=(
+                    f"While computing context for event={event_id}, not attempting to "
+                    f"pull missing prev_events={list(prevs_with_pull_backoff.keys())} "
+                    "because we already tried to pull recently (backing off)."
+                ),
+                retry_after_ms=(
+                    max(prevs_with_pull_backoff.values()) - self._clock.time_msec()
+                ),
             )
 
         if not missing_prevs:

synapse/handlers/message.py

@@ -672,7 +672,7 @@ class EventCreationHandler:
             room_version_obj, event_dict
         )
 
-        self.validator.validate_builder(builder)
+        self.validator.validate_builder(builder, self.config)
 
         if builder.type == EventTypes.Member:
             membership = builder.content.get("membership", None)
@@ -987,10 +987,11 @@ class EventCreationHandler:
         # a situation where event persistence can't keep up, causing
         # extremities to pile up, which in turn leads to state resolution
         # taking longer.
-        async with self.limiter.queue(event_dict["room_id"]):
+        room_id = event_dict["room_id"]
+        async with self.limiter.queue(room_id):
             if txn_id:
                 event = await self.get_event_from_transaction(
-                    requester, txn_id, event_dict["room_id"]
+                    requester, txn_id, room_id
                 )
                 if event:
                     # we know it was persisted, so must have a stream ordering
@@ -1000,6 +1001,18 @@ class EventCreationHandler:
                         event.internal_metadata.stream_ordering,
                     )
 
+        # If we don't have any prev event IDs specified then we need to
+        # check that the host is in the room (as otherwise populating the
+        # prev events will fail), at which point we may as well check the
+        # local user is in the room.
+        if not prev_event_ids:
+            user_id = requester.user.to_string()
+            is_user_in_room = await self.store.check_local_user_in_room(
+                user_id, room_id
+            )
+            if not is_user_in_room:
+                raise AuthError(403, f"User {user_id} not in room {room_id}")
+
         # Try several times, it could fail with PartialStateConflictError
         # in handle_new_client_event, cf comment in except block.
         max_retries = 5
@@ -1303,6 +1316,8 @@ class EventCreationHandler:
         Raises:
             SynapseError if the event is invalid.
         """
+        if event.sender in self.config.meow.validation_override:
+            return
 
         relation = relation_from_event(event)
         if not relation:
@@ -1358,6 +1373,7 @@ class EventCreationHandler:
         ratelimit: bool = True,
         extra_users: Optional[List[UserID]] = None,
         ignore_shadow_ban: bool = False,
+        dont_notify: bool = False,
     ) -> EventBase:
         """Processes new events. Please note that if batch persisting events, an error in
         handling any one of these events will result in all of the events being dropped.
@@ -1377,6 +1393,8 @@ class EventCreationHandler:
             ignore_shadow_ban: True if shadow-banned users should be allowed to
                 send this event.
 
+            dont_notify
+
         Return:
             If the event was deduplicated, the previous, duplicate, event. Otherwise,
             `event`.
@@ -1454,6 +1472,7 @@ class EventCreationHandler:
                         events_and_context=events_and_context,
                         ratelimit=ratelimit,
                         extra_users=extra_users,
+                        dont_notify=dont_notify,
                     ),
                     run_in_background(
                         self.cache_joined_hosts_for_events, events_and_context
@@ -1471,6 +1490,7 @@ class EventCreationHandler:
         events_and_context: List[Tuple[EventBase, EventContext]],
         ratelimit: bool = True,
         extra_users: Optional[List[UserID]] = None,
+        dont_notify: bool = False,
     ) -> EventBase:
         """Actually persists new events. Should only be called by
         `handle_new_client_event`, and see its docstring for documentation of
@@ -1500,6 +1520,7 @@ class EventCreationHandler:
                         requester=requester,
                         ratelimit=ratelimit,
                         extra_users=extra_users,
+                        dont_notify=dont_notify,
                     )
                 except SynapseError as e:
                     if e.code == HTTPStatus.CONFLICT:
@@ -1529,6 +1550,7 @@ class EventCreationHandler:
                 events_and_context,
                 ratelimit=ratelimit,
                 extra_users=extra_users,
+                dont_notify=dont_notify,
             )
 
             return event
@@ -1650,6 +1672,7 @@ class EventCreationHandler:
         events_and_context: List[Tuple[EventBase, EventContext]],
         ratelimit: bool = True,
         extra_users: Optional[List[UserID]] = None,
+        dont_notify: bool = False,
     ) -> EventBase:
         """Called when we have fully built the events, have already
         calculated the push actions for the events, and checked auth.
@@ -1716,7 +1739,8 @@ class EventCreationHandler:
 
             await self._maybe_kick_guest_users(event, context)
 
-            if event.type == EventTypes.CanonicalAlias:
+            validation_override = event.sender in self.config.meow.validation_override
+            if event.type == EventTypes.CanonicalAlias and not validation_override:
                 # Validate a newly added alias or newly added alt_aliases.
 
                 original_alias = None
@@ -1951,7 +1975,7 @@ class EventCreationHandler:
             pos = PersistedEventPosition(self._instance_name, stream_ordering)
             events_and_pos.append((event, pos))
 
-            if event.type == EventTypes.Message:
+            if not dont_notify and 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_as_background_process(
@@ -1966,7 +1990,10 @@ class EventCreationHandler:
             except Exception:
                 logger.exception("Error notifying about new room events")
 
-        run_in_background(_notify)
+        if not dont_notify:
+            # Skip notifying clients, this is used for Beeper's custom
+            # batch sending of non-historical messages.
+            run_in_background(_notify)
 
         return persisted_events[-1]
 
@@ -2108,7 +2135,7 @@ class EventCreationHandler:
             builder = self.event_builder_factory.for_room_version(
                 original_event.room_version, third_party_result
             )
-            self.validator.validate_builder(builder)
+            self.validator.validate_builder(builder, self.config)
         except SynapseError as e:
             raise Exception(
                 "Third party rules module created an invalid event: " + e.msg,

synapse/handlers/oidc.py

@@ -1239,6 +1239,7 @@ class OidcProvider:
             grandfather_existing_users,
             extra_attributes,
             auth_provider_session_id=sid,
+            registration_enabled=self._config.enable_registration,
         )
 
     def _remote_id_from_userinfo(self, userinfo: UserInfo) -> str:

synapse/handlers/pagination.py

@@ -683,7 +683,7 @@ class PaginationHandler:
 
                     await self._storage_controllers.purge_events.purge_room(room_id)
 
-            logger.info("complete")
+            logger.info("purge complete for room_id %s", room_id)
             self._delete_by_id[delete_id].status = DeleteStatus.STATUS_COMPLETE
         except Exception:
             f = Failure()

synapse/handlers/profile.py

@@ -63,7 +63,7 @@ class ProfileHandler:
 
         self._third_party_rules = hs.get_third_party_event_rules()
 
-    async def get_profile(self, user_id: str) -> JsonDict:
+    async def get_profile(self, user_id: str, ignore_backoff: bool = True) -> JsonDict:
         target_user = UserID.from_string(user_id)
 
         if self.hs.is_mine(target_user):
@@ -81,7 +81,7 @@ class ProfileHandler:
                     destination=target_user.domain,
                     query_type="profile",
                     args={"user_id": user_id},
-                    ignore_backoff=True,
+                    ignore_backoff=ignore_backoff,
                 )
                 return result
             except RequestSendFailed as e:

synapse/handlers/read_marker.py

@@ -13,9 +13,10 @@
 # limitations under the License.
 
 import logging
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Optional
 
 from synapse.util.async_helpers import Linearizer
+from synapse.types import JsonDict
 
 if TYPE_CHECKING:
     from synapse.server import HomeServer
@@ -31,7 +32,11 @@ class ReadMarkerHandler:
         self.read_marker_linearizer = Linearizer(name="read_marker")
 
     async def received_client_read_marker(
-        self, room_id: str, user_id: str, event_id: str
+        self,
+        room_id: str,
+        user_id: str,
+        event_id: str,
+        extra_content: Optional[JsonDict] = None,
     ) -> None:
         """Updates the read marker for a given user in a given room if the event ID given
         is ahead in the stream relative to the current read marker.
@@ -54,7 +59,7 @@ class ReadMarkerHandler:
                 )
 
             if should_update:
-                content = {"event_id": event_id}
+                content = {"event_id": event_id, **(extra_content or {})}
                 await self.account_data_handler.add_account_data_to_room(
                     user_id, room_id, "m.fully_read", content
                 )

synapse/handlers/receipts.py

@@ -161,6 +161,7 @@ class ReceiptsHandler:
         user_id: str,
         event_id: str,
         thread_id: Optional[str],
+        extra_content: Optional[JsonDict] = None,
     ) -> None:
         """Called when a client tells us a local user has read up to the given
         event_id in the room.
@@ -171,7 +172,7 @@ class ReceiptsHandler:
             user_id=user_id,
             event_ids=[event_id],
             thread_id=thread_id,
-            data={"ts": int(self.clock.time_msec())},
+            data={"ts": int(self.clock.time_msec()), **(extra_content or {})},
         )
 
         is_new = await self._handle_new_receipts([receipt])

synapse/handlers/register.py

@@ -141,22 +141,25 @@ class RegistrationHandler:
         localpart: str,
         guest_access_token: Optional[str] = None,
         assigned_user_id: Optional[str] = None,
+        allow_invalid: bool = False,
         inhibit_user_in_use_error: bool = False,
     ) -> None:
-        if types.contains_invalid_mxid_characters(localpart):
-            raise SynapseError(
-                400,
-                "User ID can only contain characters a-z, 0-9, or '=_-./'",
-                Codes.INVALID_USERNAME,
-            )
+        # meow: allow admins to register invalid user ids
+        if not allow_invalid:
+            if types.contains_invalid_mxid_characters(localpart):
+                raise SynapseError(
+                    400,
+                    "User ID can only contain characters a-z, 0-9, or '=_-./'",
+                    Codes.INVALID_USERNAME,
+                )
 
-        if not localpart:
-            raise SynapseError(400, "User ID cannot be empty", Codes.INVALID_USERNAME)
+            if not localpart:
+                raise SynapseError(400, "User ID cannot be empty", Codes.INVALID_USERNAME)
 
-        if localpart[0] == "_":
-            raise SynapseError(
-                400, "User ID may not begin with _", Codes.INVALID_USERNAME
-            )
+            if localpart[0] == "_":
+                raise SynapseError(
+                    400, "User ID may not begin with _", Codes.INVALID_USERNAME
+                )
 
         user = UserID(localpart, self.hs.hostname)
         user_id = user.to_string()
@@ -170,14 +173,16 @@ class RegistrationHandler:
                     "A different user ID has already been registered for this session",
                 )
 
-        self.check_user_id_not_appservice_exclusive(user_id)
+        # meow: allow admins to register reserved user ids and long user ids
+        if not allow_invalid:
+            self.check_user_id_not_appservice_exclusive(user_id)
 
-        if len(user_id) > MAX_USERID_LENGTH:
-            raise SynapseError(
-                400,
-                "User ID may not be longer than %s characters" % (MAX_USERID_LENGTH,),
-                Codes.INVALID_USERNAME,
-            )
+            if len(user_id) > MAX_USERID_LENGTH:
+                raise SynapseError(
+                    400,
+                    "User ID may not be longer than %s characters" % (MAX_USERID_LENGTH,),
+                    Codes.INVALID_USERNAME,
+                )
 
         users = await self.store.get_users_by_id_case_insensitive(user_id)
         if users:
@@ -287,7 +292,12 @@ class RegistrationHandler:
             await self.auth_blocking.check_auth_blocking(threepid=threepid)
 
         if localpart is not None:
-            await self.check_username(localpart, guest_access_token=guest_access_token)
+            allow_invalid = by_admin and self.hs.config.meow.admin_api_register_invalid
+            await self.check_username(
+                localpart,
+                guest_access_token=guest_access_token,
+                allow_invalid=allow_invalid,
+            )
 
             was_guest = guest_access_token is not None
 
@@ -596,14 +606,20 @@ class RegistrationHandler:
         Args:
             user_id: The user to join
         """
+        # If there are no rooms to auto-join, just bail.
+        if not self.hs.config.registration.auto_join_rooms:
+            return
+
         # auto-join the user to any rooms we're supposed to dump them into
 
         # try to create the room if we're the first real user on the server. Note
         # that an auto-generated support or bot user is not a real user and will never be
         # the user to create the room
         should_auto_create_rooms = False
-        is_real_user = await self.store.is_real_user(user_id)
-        if self.hs.config.registration.autocreate_auto_join_rooms and is_real_user:
+        if (
+            self.hs.config.registration.autocreate_auto_join_rooms
+            and await self.store.is_real_user(user_id)
+        ):
             count = await self.store.count_real_users()
             should_auto_create_rooms = count == 1
 
@@ -1007,11 +1023,11 @@ class RegistrationHandler:
             user_tuple = await self.store.get_user_by_access_token(token)
             # The token better still exist.
             assert user_tuple
-            token_id = user_tuple.token_id
+            device_id = user_tuple.device_id
 
             await self.pusher_pool.add_or_update_pusher(
                 user_id=user_id,
-                access_token=token_id,
+                device_id=device_id,
                 kind="email",
                 app_id="m.email",
                 app_display_name="Email Notifications",

synapse/handlers/room.py

@@ -569,7 +569,7 @@ class RoomCreationHandler:
             new_room_id,
             # we expect to override all the presets with initial_state, so this is
             # somewhat arbitrary.
-            preset_config=RoomCreationPreset.PRIVATE_CHAT,
+            room_config={"preset": RoomCreationPreset.PRIVATE_CHAT},
             invite_list=[],
             initial_state=initial_state,
             creation_content=creation_content,
@@ -865,11 +865,23 @@ class RoomCreationHandler:
         visibility = config.get("visibility", "private")
         is_public = visibility == "public"
 
-        room_id = await self._generate_and_create_room_id(
-            creator_id=user_id,
-            is_public=is_public,
-            room_version=room_version,
-        )
+        if "room_id" in config:
+            room_id = config["room_id"]
+            try:
+                await self.store.store_room(
+                    room_id=room_id,
+                    room_creator_user_id=user_id,
+                    is_public=is_public,
+                    room_version=room_version,
+                )
+            except StoreError:
+                raise SynapseError(409, "Room ID already in use", errcode="M_CONFLICT")
+        else:
+            room_id = await self._generate_and_create_room_id(
+                creator_id=user_id,
+                is_public=is_public,
+                room_version=room_version,
+            )
 
         # Check whether this visibility value is blocked by a third party module
         allowed_by_third_party_rules = (
@@ -904,13 +916,6 @@ class RoomCreationHandler:
                 check_membership=False,
             )
 
-        preset_config = config.get(
-            "preset",
-            RoomCreationPreset.PRIVATE_CHAT
-            if visibility == "private"
-            else RoomCreationPreset.PUBLIC_CHAT,
-        )
-
         raw_initial_state = config.get("initial_state", [])
 
         initial_state = OrderedDict()
@@ -929,7 +934,7 @@ class RoomCreationHandler:
         ) = await self._send_events_for_new_room(
             requester,
             room_id,
-            preset_config=preset_config,
+            room_config=config,
             invite_list=invite_list,
             initial_state=initial_state,
             creation_content=creation_content,
@@ -938,48 +943,6 @@ class RoomCreationHandler:
             creator_join_profile=creator_join_profile,
         )
 
-        if "name" in config:
-            name = config["name"]
-            (
-                name_event,
-                last_stream_id,
-            ) = await self.event_creation_handler.create_and_send_nonmember_event(
-                requester,
-                {
-                    "type": EventTypes.Name,
-                    "room_id": room_id,
-                    "sender": user_id,
-                    "state_key": "",
-                    "content": {"name": name},
-                },
-                ratelimit=False,
-                prev_event_ids=[last_sent_event_id],
-                depth=depth,
-            )
-            last_sent_event_id = name_event.event_id
-            depth += 1
-
-        if "topic" in config:
-            topic = config["topic"]
-            (
-                topic_event,
-                last_stream_id,
-            ) = await self.event_creation_handler.create_and_send_nonmember_event(
-                requester,
-                {
-                    "type": EventTypes.Topic,
-                    "room_id": room_id,
-                    "sender": user_id,
-                    "state_key": "",
-                    "content": {"topic": topic},
-                },
-                ratelimit=False,
-                prev_event_ids=[last_sent_event_id],
-                depth=depth,
-            )
-            last_sent_event_id = topic_event.event_id
-            depth += 1
-
         # we avoid dropping the lock between invites, as otherwise joins can
         # start coming in and making the createRoom slow.
         #
@@ -1047,7 +1010,7 @@ class RoomCreationHandler:
         self,
         creator: Requester,
         room_id: str,
-        preset_config: str,
+        room_config: JsonDict,
         invite_list: List[str],
         initial_state: MutableStateMap,
         creation_content: JsonDict,
@@ -1064,11 +1027,33 @@ class RoomCreationHandler:
 
         Rate limiting should already have been applied by this point.
 
+        Args:
+            creator:
+                the user requesting the room creation
+            room_id:
+                room id for the room being created
+            room_config:
+                A dict of configuration options. This will be the body of
+                a /createRoom request; see
+                https://spec.matrix.org/latest/client-server-api/#post_matrixclientv3createroom
+            invite_list:
+                a list of user ids to invite to the room
+            initial_state:
+                A list of state events to set in the new room.
+            creation_content:
+                Extra keys, such as m.federate, to be added to the content of the m.room.create event.
+            room_alias:
+                alias for the room
+            power_level_content_override:
+                The power level content to override in the default power level event.
+            creator_join_profile:
+                Set to override the displayname and avatar for the creating
+                user in this room.
+
         Returns:
             A tuple containing the stream ID, event ID and depth of the last
             event sent to the room.
         """
-
         creator_id = creator.user.to_string()
         event_keys = {"room_id": room_id, "sender": creator_id, "state_key": ""}
         depth = 1
@@ -1079,9 +1064,6 @@ class RoomCreationHandler:
         # created (but not persisted to the db) to determine state for future created events
         # (as this info can't be pulled from the db)
         state_map: MutableStateMap[str] = {}
-        # current_state_group of last event created. Used for computing event context of
-        # events to be batched
-        current_state_group: Optional[int] = None
 
         def create_event_dict(etype: str, content: JsonDict, **kwargs: Any) -> JsonDict:
             e = {"type": etype, "content": content}
@@ -1123,7 +1105,9 @@ class RoomCreationHandler:
                 event_dict,
                 prev_event_ids=prev_event,
                 depth=depth,
-                state_map=state_map,
+                # Take a copy to ensure each event gets a unique copy of
+                # state_map since it is modified below.
+                state_map=dict(state_map),
                 for_batch=for_batch,
             )
 
@@ -1133,6 +1117,14 @@ class RoomCreationHandler:
 
             return new_event, new_unpersisted_context
 
+        visibility = room_config.get("visibility", "private")
+        preset_config = room_config.get(
+            "preset",
+            RoomCreationPreset.PRIVATE_CHAT
+            if visibility == "private"
+            else RoomCreationPreset.PUBLIC_CHAT,
+        )
+
         try:
             config = self._presets_dict[preset_config]
         except KeyError:
@@ -1191,7 +1183,7 @@ class RoomCreationHandler:
             events_to_send.append((power_event, power_context))
         else:
             power_level_content: JsonDict = {
-                "users": {creator_id: 100},
+                "users": {creator_id: 9001},
                 "users_default": 0,
                 "events": {
                     EventTypes.Name: 50,
@@ -1284,6 +1276,24 @@ class RoomCreationHandler:
             )
             events_to_send.append((encryption_event, encryption_context))
 
+        if "name" in room_config:
+            name = room_config["name"]
+            name_event, name_context = await create_event(
+                EventTypes.Name,
+                {"name": name},
+                True,
+            )
+            events_to_send.append((name_event, name_context))
+
+        if "topic" in room_config:
+            topic = room_config["topic"]
+            topic_event, topic_context = await create_event(
+                EventTypes.Topic,
+                {"topic": topic},
+                True,
+            )
+            events_to_send.append((topic_event, topic_context))
+
         datastore = self.hs.get_datastores().state
         events_and_context = (
             await UnpersistedEventContext.batch_persist_unpersisted_contexts(

synapse/handlers/room_batch.py

@@ -21,6 +21,7 @@ class RoomBatchHandler:
         self.event_creation_handler = hs.get_event_creation_handler()
         self.room_member_handler = hs.get_room_member_handler()
         self.auth = hs.get_auth()
+        self.allow_send_any = self.hs.config.meow.appservice_batch_send_any
 
     async def inherit_depth_from_prev_ids(self, prev_event_ids: List[str]) -> int:
         """Finds the depth which would sort it after the most-recent
@@ -118,7 +119,9 @@ class RoomBatchHandler:
             Requester object
         """
 
-        await self.auth.validate_appservice_can_control_user_id(app_service, user_id)
+        await self.auth.validate_appservice_can_control_user_id(
+            app_service, user_id, allow_any=self.allow_send_any
+        )
 
         return create_requester(user_id, app_service=app_service)
 
@@ -271,6 +274,8 @@ class RoomBatchHandler:
         inherited_depth: int,
         initial_state_event_ids: List[str],
         app_service_requester: Requester,
+        beeper_new_messages: bool,
+        beeper_initial_prev_event_ids: List[str] = None,
     ) -> List[str]:
         """Create and persists all events provided sequentially. Handles the
         complexity of creating events in chronological order so they can
@@ -290,21 +295,24 @@ class RoomBatchHandler:
                 the start of the historical batch since it's floating with no
                 prev_events to derive state from automatically.
             app_service_requester: The requester of an application service.
+            beeper_new_messages: Is this a batch of new events rather than history?
+            beeper_initial_prev_event_ids: prev_event_ids for the first event to send.
 
         Returns:
             List of persisted event IDs
         """
         assert app_service_requester.app_service
 
-        # We expect the first event in a historical batch to be an insertion event
-        assert events_to_create[0]["type"] == EventTypes.MSC2716_INSERTION
-        # We expect the last event in a historical batch to be an batch event
-        assert events_to_create[-1]["type"] == EventTypes.MSC2716_BATCH
+        if not beeper_new_messages:
+            # We expect the first event in a historical batch to be an insertion event
+            assert events_to_create[0]["type"] == EventTypes.MSC2716_INSERTION
+            # We expect the last event in a historical batch to be an batch event
+            assert events_to_create[-1]["type"] == EventTypes.MSC2716_BATCH
 
         # Make the historical event chain float off on its own by specifying no
         # prev_events for the first event in the chain which causes the HS to
         # ask for the state at the start of the batch later.
-        prev_event_ids: List[str] = []
+        prev_event_ids: List[str] = beeper_initial_prev_event_ids or []
 
         event_ids = []
         events_to_persist = []
@@ -335,14 +343,14 @@ class RoomBatchHandler:
                 # Only the first event (which is the insertion event) in the
                 # chain should be floating. The rest should hang off each other
                 # in a chain.
-                allow_no_prev_events=index == 0,
+                allow_no_prev_events=index == 0 and not beeper_new_messages,
                 prev_event_ids=event_dict.get("prev_events"),
                 # Since the first event (which is the insertion event) in the
                 # chain is floating with no `prev_events`, it can't derive state
                 # from anywhere automatically. So we need to set some state
                 # explicitly.
                 state_event_ids=initial_state_event_ids if index == 0 else None,
-                historical=True,
+                historical=not beeper_new_messages,
                 depth=inherited_depth,
             )
             context = await unpersisted_context.persist(event)
@@ -370,6 +378,18 @@ class RoomBatchHandler:
             event_ids.append(event_id)
             prev_event_ids = [event_id]
 
+        if beeper_new_messages:
+            for index, (event, context) in enumerate(events_to_persist):
+                await self.event_creation_handler.handle_new_client_event(
+                    await self.create_requester_for_user_id_from_app_service(
+                        event.sender, app_service_requester.app_service
+                    ),
+                    event=event,
+                    context=context,
+                    dont_notify=index < len(events_to_persist) - 1,
+                )
+            return event_ids
+
         # Persist events in reverse-chronological order so they have the
         # correct stream_ordering as they are backfilled (which decrements).
         # Events are sorted by (topological_ordering, stream_ordering)
@@ -394,6 +414,8 @@ class RoomBatchHandler:
         inherited_depth: int,
         initial_state_event_ids: List[str],
         app_service_requester: Requester,
+        beeper_new_messages: bool,
+        beeper_initial_prev_event_ids: List[str] = None,
     ) -> Tuple[List[str], str]:
         """
         Handles creating and persisting all of the historical events as well as
@@ -415,6 +437,8 @@ class RoomBatchHandler:
                 `/batch_send?prev_event_id=$abc` plus the outcome of
                 `persist_state_events_at_start`
             app_service_requester: The requester of an application service.
+            beeper_new_messages: Is this a batch of new events rather than history?
+            beeper_initial_prev_event_ids: prev_event_ids for the first event to send.
 
         Returns:
             Tuple containing a list of created events and the next_batch_id
@@ -435,8 +459,9 @@ class RoomBatchHandler:
             # the last event we're inserting
             "origin_server_ts": last_event_in_batch["origin_server_ts"],
         }
-        # Add the batch event to the end of the batch (newest-in-time)
-        events_to_create.append(batch_event)
+        if not beeper_new_messages:
+            # Add the batch event to the end of the batch (newest-in-time)
+            events_to_create.append(batch_event)
 
         # Add an "insertion" event to the start of each batch (next to the oldest-in-time
         # event in the batch) so the next batch can be connected to this one.
@@ -451,8 +476,9 @@ class RoomBatchHandler:
         next_batch_id = insertion_event["content"][
             EventContentFields.MSC2716_NEXT_BATCH_ID
         ]
-        # Prepend the insertion event to the start of the batch (oldest-in-time)
-        events_to_create = [insertion_event] + events_to_create
+        if not beeper_new_messages:
+            # Prepend the insertion event to the start of the batch (oldest-in-time)
+            events_to_create = [insertion_event] + events_to_create
 
         # Create and persist all of the historical events
         event_ids = await self.persist_historical_events(
@@ -461,6 +487,8 @@ class RoomBatchHandler:
             inherited_depth=inherited_depth,
             initial_state_event_ids=initial_state_event_ids,
             app_service_requester=app_service_requester,
+            beeper_new_messages=beeper_new_messages,
+            beeper_initial_prev_event_ids=beeper_initial_prev_event_ids,
         )
 
         return event_ids, next_batch_id

synapse/handlers/room_member.py

@@ -727,26 +727,6 @@ class RoomMemberHandler(metaclass=abc.ABCMeta):
             content.pop("displayname", None)
             content.pop("avatar_url", None)
 
-        if len(content.get("displayname") or "") > MAX_DISPLAYNAME_LEN:
-            raise SynapseError(
-                400,
-                f"Displayname is too long (max {MAX_DISPLAYNAME_LEN})",
-                errcode=Codes.BAD_JSON,
-            )
-
-        if len(content.get("avatar_url") or "") > MAX_AVATAR_URL_LEN:
-            raise SynapseError(
-                400,
-                f"Avatar URL is too long (max {MAX_AVATAR_URL_LEN})",
-                errcode=Codes.BAD_JSON,
-            )
-
-        if "avatar_url" in content and content.get("avatar_url") is not None:
-            if not await self.profile_handler.check_avatar_size_and_mime_type(
-                content["avatar_url"],
-            ):
-                raise SynapseError(403, "This avatar is not allowed", Codes.FORBIDDEN)
-
         # The event content should *not* include the authorising user as
         # it won't be properly signed. Strip it out since it might come
         # back from a client updating a display name / avatar.
@@ -850,64 +830,69 @@ class RoomMemberHandler(metaclass=abc.ABCMeta):
         # `is_partial_state_room` also indicates whether `partial_state_before_join` is
         # partial.
 
-        # TODO: Refactor into dictionary of explicitly allowed transitions
-        # between old and new state, with specific error messages for some
-        # transitions and generic otherwise
-        old_state_id = partial_state_before_join.get(
-            (EventTypes.Member, target.to_string())
-        )
-        if old_state_id:
-            old_state = await self.store.get_event(old_state_id, allow_none=True)
-            old_membership = old_state.content.get("membership") if old_state else None
-            if action == "unban" and old_membership != "ban":
-                raise SynapseError(
-                    403,
-                    "Cannot unban user who was not banned"
-                    " (membership=%s)" % old_membership,
-                    errcode=Codes.BAD_STATE,
-                )
-            if old_membership == "ban" and action not in ["ban", "unban", "leave"]:
-                raise SynapseError(
-                    403,
-                    "Cannot %s user who was banned" % (action,),
-                    errcode=Codes.BAD_STATE,
-                )
-
-            if old_state:
-                same_content = content == old_state.content
-                same_membership = old_membership == effective_membership_state
-                same_sender = requester.user.to_string() == old_state.sender
-                if same_sender and same_membership and same_content:
-                    # duplicate event.
-                    # we know it was persisted, so must have a stream ordering.
-                    assert old_state.internal_metadata.stream_ordering
-                    return (
-                        old_state.event_id,
-                        old_state.internal_metadata.stream_ordering,
-                    )
-
-            if old_membership in ["ban", "leave"] and action == "kick":
-                raise AuthError(403, "The target user is not in the room")
-
-            # we don't allow people to reject invites to the server notice
-            # room, but they can leave it once they are joined.
-            if (
-                old_membership == Membership.INVITE
-                and effective_membership_state == Membership.LEAVE
-            ):
-                is_blocked = await self.store.is_server_notice_room(room_id)
-                if is_blocked:
-                    raise SynapseError(
-                        HTTPStatus.FORBIDDEN,
-                        "You cannot reject this invite",
-                        errcode=Codes.CANNOT_LEAVE_SERVER_NOTICE_ROOM,
-                    )
-        else:
-            if action == "kick":
-                raise AuthError(403, "The target user is not in the room")
-
         is_host_in_room = await self._is_host_in_room(partial_state_before_join)
 
+        # if we are not in the room, we won't have the current state
+        if is_host_in_room:
+            # TODO: Refactor into dictionary of explicitly allowed transitions
+            # between old and new state, with specific error messages for some
+            # transitions and generic otherwise
+            old_state_id = partial_state_before_join.get(
+                (EventTypes.Member, target.to_string())
+            )
+
+            if old_state_id:
+                old_state = await self.store.get_event(old_state_id, allow_none=True)
+                old_membership = (
+                    old_state.content.get("membership") if old_state else None
+                )
+                if action == "unban" and old_membership != "ban":
+                    raise SynapseError(
+                        403,
+                        "Cannot unban user who was not banned"
+                        " (membership=%s)" % old_membership,
+                        errcode=Codes.BAD_STATE,
+                    )
+                if old_membership == "ban" and action not in ["ban", "unban", "leave"]:
+                    raise SynapseError(
+                        403,
+                        "Cannot %s user who was banned" % (action,),
+                        errcode=Codes.BAD_STATE,
+                    )
+
+                if old_state:
+                    same_content = content == old_state.content
+                    same_membership = old_membership == effective_membership_state
+                    same_sender = requester.user.to_string() == old_state.sender
+                    if same_sender and same_membership and same_content:
+                        # duplicate event.
+                        # we know it was persisted, so must have a stream ordering.
+                        assert old_state.internal_metadata.stream_ordering
+                        return (
+                            old_state.event_id,
+                            old_state.internal_metadata.stream_ordering,
+                        )
+
+                if old_membership in ["ban", "leave"] and action == "kick":
+                    raise AuthError(403, "The target user is not in the room")
+
+                # we don't allow people to reject invites to the server notice
+                # room, but they can leave it once they are joined.
+                if (
+                    old_membership == Membership.INVITE
+                    and effective_membership_state == Membership.LEAVE
+                ):
+                    is_blocked = await self.store.is_server_notice_room(room_id)
+                    if is_blocked:
+                        raise SynapseError(
+                            HTTPStatus.FORBIDDEN,
+                            "You cannot reject this invite",
+                            errcode=Codes.CANNOT_LEAVE_SERVER_NOTICE_ROOM,
+                        )
+            else:
+                if action == "kick":
+                    raise AuthError(403, "The target user is not in the room")
+
         if effective_membership_state == Membership.JOIN:
             if requester.is_guest:
                 guest_can_join = await self._can_guest_join(partial_state_before_join)

synapse/handlers/sso.py

@@ -383,6 +383,7 @@ class SsoHandler:
         grandfather_existing_users: Callable[[], Awaitable[Optional[str]]],
         extra_login_attributes: Optional[JsonDict] = None,
         auth_provider_session_id: Optional[str] = None,
+        registration_enabled: bool = True,
     ) -> None:
         """
         Given an SSO ID, retrieve the user ID for it and possibly register the user.
@@ -435,6 +436,10 @@ class SsoHandler:
 
             auth_provider_session_id: An optional session ID from the IdP.
 
+            registration_enabled: An optional boolean to enable/disable automatic
+            registrations of new users. If false and the user does not exist then the
+            flow is aborted. Defaults to true.
+
         Raises:
             MappingException if there was a problem mapping the response to a user.
             RedirectException: if the mapping provider needs to redirect the user
@@ -462,8 +467,16 @@ class SsoHandler:
                         auth_provider_id, remote_user_id, user_id
                     )
 
-            # Otherwise, generate a new user.
-            if not user_id:
+            if not user_id and not registration_enabled:
+                logger.info(
+                    "User does not exist and registration are disabled for IdP '%s' and remote_user_id '%s'",
+                    auth_provider_id,
+                    remote_user_id,
+                )
+                raise MappingException(
+                    "User does not exist and registrations are disabled"
+                )
+            elif not user_id:  # Otherwise, generate a new user.
                 attributes = await self._call_attribute_mapper(sso_to_matrix_id_mapper)
 
                 next_step_url = self._get_url_for_next_new_user_step(

synapse/handlers/sync.py

@@ -943,6 +943,8 @@ class SyncHandler:
 
                 timeline_state = {}
 
+                # Membership events to fetch that can be found in the room state, or in
+                # the case of partial state rooms, the auth events of timeline events.
                 members_to_fetch = set()
                 first_event_by_sender_map = {}
                 for event in batch.events:
@@ -964,9 +966,19 @@ class SyncHandler:
                     # (if we are) to fix https://github.com/vector-im/riot-web/issues/7209
                     # We only need apply this on full state syncs given we disabled
                     # LL for incr syncs in #3840.
-                    members_to_fetch.add(sync_config.user.to_string())
-
-                state_filter = StateFilter.from_lazy_load_member_list(members_to_fetch)
+                    # We don't insert ourselves into `members_to_fetch`, because in some
+                    # rare cases (an empty event batch with a now_token after the user's
+                    # leave in a partial state room which another local user has
+                    # joined), the room state will be missing our membership and there
+                    # is no guarantee that our membership will be in the auth events of
+                    # timeline events when the room is partial stated.
+                    state_filter = StateFilter.from_lazy_load_member_list(
+                        members_to_fetch.union((sync_config.user.to_string(),))
+                    )
+                else:
+                    state_filter = StateFilter.from_lazy_load_member_list(
+                        members_to_fetch
+                    )
 
                 # We are happy to use partial state to compute the `/sync` response.
                 # Since partial state may not include the lazy-loaded memberships we
@@ -988,7 +1000,9 @@ class SyncHandler:
             # sync's timeline and the start of the current sync's timeline.
             # See the docstring above for details.
             state_ids: StateMap[str]
-
+            # We need to know whether the state we fetch may be partial, so check
+            # whether the room is partial stated *before* fetching it.
+            is_partial_state_room = await self.store.is_partial_state_room(room_id)
             if full_state:
                 if batch:
                     state_at_timeline_end = (
@@ -1119,7 +1133,7 @@ class SyncHandler:
             # If we only have partial state for the room, `state_ids` may be missing the
             # memberships we wanted. We attempt to find some by digging through the auth
             # events of timeline events.
-            if lazy_load_members and await self.store.is_partial_state_room(room_id):
+            if lazy_load_members and is_partial_state_room:
                 assert members_to_fetch is not None
                 assert first_event_by_sender_map is not None
 
@@ -1175,7 +1189,6 @@ class SyncHandler:
             for e in await sync_config.filter_collection.filter_room_state(
                 list(state.values())
             )
-            if e.type != EventTypes.Aliases  # until MSC2261 or alternative solution
         }
 
     async def _find_missing_partial_state_memberships(
@@ -1226,6 +1239,10 @@ class SyncHandler:
                 continue
 
             event_with_membership_auth = events_with_membership_auth[member]
+            is_create = (
+                event_with_membership_auth.is_state()
+                and event_with_membership_auth.type == EventTypes.Create
+            )
             is_join = (
                 event_with_membership_auth.is_state()
                 and event_with_membership_auth.type == EventTypes.Member
@@ -1233,9 +1250,10 @@ class SyncHandler:
                 and event_with_membership_auth.content.get("membership")
                 == Membership.JOIN
             )
-            if not is_join:
+            if not is_create and not is_join:
                 # The event must include the desired membership as an auth event, unless
-                # it's the first join event for a given user.
+                # it's the `m.room.create` event for a room or the first join event for
+                # a given user.
                 missing_members.add(member)
             auth_event_ids.update(event_with_membership_auth.auth_event_ids())
 

synapse/handlers/typing.py

@@ -52,6 +52,11 @@ FEDERATION_TIMEOUT = 60 * 1000
 FEDERATION_PING_INTERVAL = 40 * 1000
 
 
+# How long to remember a typing notification happened in a room before
+# forgetting about it.
+FORGET_TIMEOUT = 10 * 60 * 1000
+
+
 class FollowerTypingHandler:
     """A typing handler on a different process than the writer that is updated
     via replication.
@@ -83,7 +88,10 @@ class FollowerTypingHandler:
         self.wheel_timer: WheelTimer[RoomMember] = WheelTimer(bucket_size=5000)
         self._latest_room_serial = 0
 
+        self._rooms_updated: Set[str] = set()
+
         self.clock.looping_call(self._handle_timeouts, 5000)
+        self.clock.looping_call(self._prune_old_typing, FORGET_TIMEOUT)
 
     def _reset(self) -> None:
         """Reset the typing handler's data caches."""
@@ -92,6 +100,8 @@ class FollowerTypingHandler:
         # map room IDs to sets of users currently typing
         self._room_typing = {}
 
+        self._rooms_updated = set()
+
         self._member_last_federation_poke = {}
         self.wheel_timer = WheelTimer(bucket_size=5000)
 
@@ -178,6 +188,7 @@ class FollowerTypingHandler:
             prev_typing = self._room_typing.get(row.room_id, set())
             now_typing = set(row.user_ids)
             self._room_typing[row.room_id] = now_typing
+            self._rooms_updated.add(row.room_id)
 
             if self.federation:
                 run_as_background_process(
@@ -209,6 +220,19 @@ class FollowerTypingHandler:
     def get_current_token(self) -> int:
         return self._latest_room_serial
 
+    def _prune_old_typing(self) -> None:
+        """Prune rooms that haven't seen typing updates since last time.
+
+        This is safe to do as clients should time out old typing notifications.
+        """
+        stale_rooms = self._room_serials.keys() - self._rooms_updated
+
+        for room_id in stale_rooms:
+            self._room_serials.pop(room_id, None)
+            self._room_typing.pop(room_id, None)
+
+        self._rooms_updated = set()
+
 
 class TypingWriterHandler(FollowerTypingHandler):
     def __init__(self, hs: "HomeServer"):
@@ -388,6 +412,7 @@ class TypingWriterHandler(FollowerTypingHandler):
         self._typing_stream_change_cache.entity_has_changed(
             member.room_id, self._latest_room_serial
         )
+        self._rooms_updated.add(member.room_id)
 
         self.notifier.on_new_event(
             StreamKeyType.TYPING, self._latest_room_serial, rooms=[member.room_id]

synapse/handlers/user_directory.py

@@ -13,21 +13,52 @@
 # limitations under the License.
 
 import logging
+from http import HTTPStatus
 from typing import TYPE_CHECKING, Any, Dict, List, Optional, Set, Tuple
 
+from twisted.internet.interfaces import IDelayedCall
+
 import synapse.metrics
 from synapse.api.constants import EventTypes, HistoryVisibility, JoinRules, Membership
+from synapse.api.errors import Codes, SynapseError
 from synapse.handlers.state_deltas import MatchChange, StateDeltasHandler
 from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.storage.databases.main.user_directory import SearchResult
 from synapse.storage.roommember import ProfileInfo
+from synapse.types import UserID
 from synapse.util.metrics import Measure
+from synapse.util.retryutils import NotRetryingDestination
+from synapse.util.stringutils import non_null_str_or_none
 
 if TYPE_CHECKING:
     from synapse.server import HomeServer
 
 logger = logging.getLogger(__name__)
 
+# Don't refresh a stale user directory entry, using a Federation /profile request,
+# for 60 seconds. This gives time for other state events to arrive (which will
+# then be coalesced such that only one /profile request is made).
+USER_DIRECTORY_STALE_REFRESH_TIME_MS = 60 * 1000
+
+# Maximum number of remote servers that we will attempt to refresh profiles for
+# in one go.
+MAX_SERVERS_TO_REFRESH_PROFILES_FOR_IN_ONE_GO = 5
+
+# As long as we have servers to refresh (without backoff), keep adding more
+# every 15 seconds.
+INTERVAL_TO_ADD_MORE_SERVERS_TO_REFRESH_PROFILES = 15
+
+
+def calculate_time_of_next_retry(now_ts: int, retry_count: int) -> int:
+    """
+    Calculates the time of a next retry given `now_ts` in ms and the number
+    of failures encountered thus far.
+
+    Currently the sequence goes:
+    1 min, 5 min, 25 min, 2 hour, 10 hour, 52 hour, 10 day, 7.75 week
+    """
+    return now_ts + 60_000 * (5 ** min(retry_count, 7))
+
 
 class UserDirectoryHandler(StateDeltasHandler):
     """Handles queries and updates for the user_directory.
@@ -64,12 +95,24 @@ class UserDirectoryHandler(StateDeltasHandler):
         self.update_user_directory = hs.config.worker.should_update_user_directory
         self.search_all_users = hs.config.userdirectory.user_directory_search_all_users
         self.spam_checker = hs.get_spam_checker()
+        self._hs = hs
+
         # The current position in the current_state_delta stream
         self.pos: Optional[int] = None
 
         # Guard to ensure we only process deltas one at a time
         self._is_processing = False
 
+        # Guard to ensure we only have one process for refreshing remote profiles
+        self._is_refreshing_remote_profiles = False
+        # Handle to cancel the `call_later` of `kick_off_remote_profile_refresh_process`
+        self._refresh_remote_profiles_call_later: Optional[IDelayedCall] = None
+
+        # Guard to ensure we only have one process for refreshing remote profiles
+        # for the given servers.
+        # Set of server names.
+        self._is_refreshing_remote_profiles_for_servers: Set[str] = set()
+
         if self.update_user_directory:
             self.notifier.add_replication_callback(self.notify_new_event)
 
@@ -77,6 +120,11 @@ class UserDirectoryHandler(StateDeltasHandler):
             # we start populating the user directory
             self.clock.call_later(0, self.notify_new_event)
 
+            # Kick off the profile refresh process on startup
+            self._refresh_remote_profiles_call_later = self.clock.call_later(
+                10, self.kick_off_remote_profile_refresh_process
+            )
+
     async def search_users(
         self, user_id: str, search_term: str, limit: int
     ) -> SearchResult:
@@ -200,8 +248,8 @@ class UserDirectoryHandler(StateDeltasHandler):
             typ = delta["type"]
             state_key = delta["state_key"]
             room_id = delta["room_id"]
-            event_id = delta["event_id"]
-            prev_event_id = delta["prev_event_id"]
+            event_id: Optional[str] = delta["event_id"]
+            prev_event_id: Optional[str] = delta["prev_event_id"]
 
             logger.debug("Handling: %r %r, %s", typ, state_key, event_id)
 
@@ -297,8 +345,8 @@ class UserDirectoryHandler(StateDeltasHandler):
     async def _handle_room_membership_event(
         self,
         room_id: str,
-        prev_event_id: str,
-        event_id: str,
+        prev_event_id: Optional[str],
+        event_id: Optional[str],
         state_key: str,
     ) -> None:
         """Process a single room membershp event.
@@ -348,7 +396,8 @@ class UserDirectoryHandler(StateDeltasHandler):
             # Handle any profile changes for remote users.
             # (For local users the rest of the application calls
             # `handle_local_profile_change`.)
-            if is_remote:
+            # Only process if there is an event_id.
+            if is_remote and event_id is not None:
                 await self._handle_possible_remote_profile_change(
                     state_key, room_id, prev_event_id, event_id
                 )
@@ -356,29 +405,13 @@ class UserDirectoryHandler(StateDeltasHandler):
             # This may be the first time we've seen a remote user. If
             # so, ensure we have a directory entry for them. (For local users,
             # the rest of the application calls `handle_local_profile_change`.)
-            if is_remote:
-                await self._upsert_directory_entry_for_remote_user(state_key, event_id)
+            # Only process if there is an event_id.
+            if is_remote and event_id is not None:
+                await self._handle_possible_remote_profile_change(
+                    state_key, room_id, None, event_id
+                )
             await self._track_user_joined_room(room_id, state_key)
 
-    async def _upsert_directory_entry_for_remote_user(
-        self, user_id: str, event_id: str
-    ) -> None:
-        """A remote user has just joined a room. Ensure they have an entry in
-        the user directory. The caller is responsible for making sure they're
-        remote.
-        """
-        event = await self.store.get_event(event_id, allow_none=True)
-        # It isn't expected for this event to not exist, but we
-        # don't want the entire background process to break.
-        if event is None:
-            return
-
-        logger.debug("Adding new user to dir, %r", user_id)
-
-        await self.store.update_profile_in_user_dir(
-            user_id, event.content.get("displayname"), event.content.get("avatar_url")
-        )
-
     async def _track_user_joined_room(self, room_id: str, joining_user_id: str) -> None:
         """Someone's just joined a room. Update `users_in_public_rooms` or
         `users_who_share_private_rooms` as appropriate.
@@ -460,14 +493,17 @@ class UserDirectoryHandler(StateDeltasHandler):
         user_id: str,
         room_id: str,
         prev_event_id: Optional[str],
-        event_id: Optional[str],
+        event_id: str,
     ) -> None:
         """Check member event changes for any profile changes and update the
         database if there are. This is intended for remote users only. The caller
         is responsible for checking that the given user is remote.
         """
-        if not prev_event_id or not event_id:
-            return
+
+        if not prev_event_id:
+            # If we don't have an older event to fall back on, just fetch the same
+            # event itself.
+            prev_event_id = event_id
 
         prev_event = await self.store.get_event(prev_event_id, allow_none=True)
         event = await self.store.get_event(event_id, allow_none=True)
@@ -478,17 +514,236 @@ class UserDirectoryHandler(StateDeltasHandler):
         if event.membership != Membership.JOIN:
             return
 
+        is_public = await self.store.is_room_world_readable_or_publicly_joinable(
+            room_id
+        )
+        if not is_public:
+            # Don't collect user profiles from private rooms as they are not guaranteed
+            # to be the same as the user's global profile.
+            now_ts = self.clock.time_msec()
+            await self.store.set_remote_user_profile_in_user_dir_stale(
+                user_id,
+                next_try_at_ms=now_ts + USER_DIRECTORY_STALE_REFRESH_TIME_MS,
+                retry_counter=0,
+            )
+            # Schedule a wake-up to refresh the user directory for this server.
+            # We intentionally wake up this server directly because we don't want
+            # other servers ahead of it in the queue to get in the way of updating
+            # the profile if the server only just sent us an event.
+            self.clock.call_later(
+                USER_DIRECTORY_STALE_REFRESH_TIME_MS // 1000 + 1,
+                self.kick_off_remote_profile_refresh_process_for_remote_server,
+                UserID.from_string(user_id).domain,
+            )
+            # Schedule a wake-up to handle any backoffs that may occur in the future.
+            self.clock.call_later(
+                2 * USER_DIRECTORY_STALE_REFRESH_TIME_MS // 1000 + 1,
+                self.kick_off_remote_profile_refresh_process,
+            )
+            return
+
         prev_name = prev_event.content.get("displayname")
         new_name = event.content.get("displayname")
-        # If the new name is an unexpected form, do not update the directory.
+        # If the new name is an unexpected form, replace with None.
         if not isinstance(new_name, str):
-            new_name = prev_name
+            new_name = None
 
         prev_avatar = prev_event.content.get("avatar_url")
         new_avatar = event.content.get("avatar_url")
-        # If the new avatar is an unexpected form, do not update the directory.
+        # If the new avatar is an unexpected form, replace with None.
         if not isinstance(new_avatar, str):
-            new_avatar = prev_avatar
+            new_avatar = None
 
-        if prev_name != new_name or prev_avatar != new_avatar:
+        if (
+            prev_name != new_name
+            or prev_avatar != new_avatar
+            or prev_event_id == event_id
+        ):
+            # Only update if something has changed, or we didn't have a previous event
+            # in the first place.
             await self.store.update_profile_in_user_dir(user_id, new_name, new_avatar)
+
+    def kick_off_remote_profile_refresh_process(self) -> None:
+        """Called when there may be remote users with stale profiles to be refreshed"""
+        if not self.update_user_directory:
+            return
+
+        if self._is_refreshing_remote_profiles:
+            return
+
+        if self._refresh_remote_profiles_call_later:
+            if self._refresh_remote_profiles_call_later.active():
+                self._refresh_remote_profiles_call_later.cancel()
+            self._refresh_remote_profiles_call_later = None
+
+        async def process() -> None:
+            try:
+                await self._unsafe_refresh_remote_profiles()
+            finally:
+                self._is_refreshing_remote_profiles = False
+
+        self._is_refreshing_remote_profiles = True
+        run_as_background_process("user_directory.refresh_remote_profiles", process)
+
+    async def _unsafe_refresh_remote_profiles(self) -> None:
+        limit = MAX_SERVERS_TO_REFRESH_PROFILES_FOR_IN_ONE_GO - len(
+            self._is_refreshing_remote_profiles_for_servers
+        )
+        if limit <= 0:
+            # nothing to do: already refreshing the maximum number of servers
+            # at once.
+            # Come back later.
+            self._refresh_remote_profiles_call_later = self.clock.call_later(
+                INTERVAL_TO_ADD_MORE_SERVERS_TO_REFRESH_PROFILES,
+                self.kick_off_remote_profile_refresh_process,
+            )
+            return
+
+        servers_to_refresh = (
+            await self.store.get_remote_servers_with_profiles_to_refresh(
+                now_ts=self.clock.time_msec(), limit=limit
+            )
+        )
+
+        if not servers_to_refresh:
+            # Do we have any backing-off servers that we should try again
+            # for eventually?
+            # By setting `now` is a point in the far future, we can ask for
+            # which server/user is next to be refreshed, even though it is
+            # not actually refreshable *now*.
+            end_of_time = 1 << 62
+            backing_off_servers = (
+                await self.store.get_remote_servers_with_profiles_to_refresh(
+                    now_ts=end_of_time, limit=1
+                )
+            )
+            if backing_off_servers:
+                # Find out when the next user is refreshable and schedule a
+                # refresh then.
+                backing_off_server_name = backing_off_servers[0]
+                users = await self.store.get_remote_users_to_refresh_on_server(
+                    backing_off_server_name, now_ts=end_of_time, limit=1
+                )
+                if not users:
+                    return
+                _, _, next_try_at_ts = users[0]
+                self._refresh_remote_profiles_call_later = self.clock.call_later(
+                    ((next_try_at_ts - self.clock.time_msec()) // 1000) + 2,
+                    self.kick_off_remote_profile_refresh_process,
+                )
+
+            return
+
+        for server_to_refresh in servers_to_refresh:
+            self.kick_off_remote_profile_refresh_process_for_remote_server(
+                server_to_refresh
+            )
+
+        self._refresh_remote_profiles_call_later = self.clock.call_later(
+            INTERVAL_TO_ADD_MORE_SERVERS_TO_REFRESH_PROFILES,
+            self.kick_off_remote_profile_refresh_process,
+        )
+
+    def kick_off_remote_profile_refresh_process_for_remote_server(
+        self, server_name: str
+    ) -> None:
+        """Called when there may be remote users with stale profiles to be refreshed
+        on the given server."""
+        if not self.update_user_directory:
+            return
+
+        if server_name in self._is_refreshing_remote_profiles_for_servers:
+            return
+
+        async def process() -> None:
+            try:
+                await self._unsafe_refresh_remote_profiles_for_remote_server(
+                    server_name
+                )
+            finally:
+                self._is_refreshing_remote_profiles_for_servers.remove(server_name)
+
+        self._is_refreshing_remote_profiles_for_servers.add(server_name)
+        run_as_background_process(
+            "user_directory.refresh_remote_profiles_for_remote_server", process
+        )
+
+    async def _unsafe_refresh_remote_profiles_for_remote_server(
+        self, server_name: str
+    ) -> None:
+        logger.info("Refreshing profiles in user directory for %s", server_name)
+
+        while True:
+            # Get a handful of users to process.
+            next_batch = await self.store.get_remote_users_to_refresh_on_server(
+                server_name, now_ts=self.clock.time_msec(), limit=10
+            )
+            if not next_batch:
+                # Finished for now
+                return
+
+            for user_id, retry_counter, _ in next_batch:
+                # Request the profile of the user.
+                try:
+                    profile = await self._hs.get_profile_handler().get_profile(
+                        user_id, ignore_backoff=False
+                    )
+                except NotRetryingDestination as e:
+                    logger.info(
+                        "Failed to refresh profile for %r because the destination is undergoing backoff",
+                        user_id,
+                    )
+                    # As a special-case, we back off until the destination is no longer
+                    # backed off from.
+                    await self.store.set_remote_user_profile_in_user_dir_stale(
+                        user_id,
+                        e.retry_last_ts + e.retry_interval,
+                        retry_counter=retry_counter + 1,
+                    )
+                    continue
+                except SynapseError as e:
+                    if e.code == HTTPStatus.NOT_FOUND and e.errcode == Codes.NOT_FOUND:
+                        # The profile doesn't exist.
+                        # TODO Does this mean we should clear it from our user
+                        #      directory?
+                        await self.store.clear_remote_user_profile_in_user_dir_stale(
+                            user_id
+                        )
+                        logger.warning(
+                            "Refresh of remote profile %r: not found (%r)",
+                            user_id,
+                            e.msg,
+                        )
+                        continue
+
+                    logger.warning(
+                        "Failed to refresh profile for %r because %r", user_id, e
+                    )
+                    await self.store.set_remote_user_profile_in_user_dir_stale(
+                        user_id,
+                        calculate_time_of_next_retry(
+                            self.clock.time_msec(), retry_counter + 1
+                        ),
+                        retry_counter=retry_counter + 1,
+                    )
+                    continue
+                except Exception:
+                    logger.error(
+                        "Failed to refresh profile for %r due to unhandled exception",
+                        user_id,
+                        exc_info=True,
+                    )
+                    await self.store.set_remote_user_profile_in_user_dir_stale(
+                        user_id,
+                        calculate_time_of_next_retry(
+                            self.clock.time_msec(), retry_counter + 1
+                        ),
+                        retry_counter=retry_counter + 1,
+                    )
+                    continue
+
+                await self.store.update_profile_in_user_dir(
+                    user_id,
+                    display_name=non_null_str_or_none(profile.get("displayname")),
+                    avatar_url=non_null_str_or_none(profile.get("avatar_url")),
+                )

synapse/http/client.py

@@ -268,8 +268,8 @@ class BlacklistingAgentWrapper(Agent):
     def __init__(
         self,
         agent: IAgent,
+        ip_blacklist: IPSet,
         ip_whitelist: Optional[IPSet] = None,
-        ip_blacklist: Optional[IPSet] = None,
     ):
         """
         Args:
@@ -291,7 +291,9 @@ class BlacklistingAgentWrapper(Agent):
         h = urllib.parse.urlparse(uri.decode("ascii"))
 
         try:
-            ip_address = IPAddress(h.hostname)
+            # h.hostname is Optional[str], None raises an AddrFormatError, so
+            # this is safe even though IPAddress requires a str.
+            ip_address = IPAddress(h.hostname)  # type: ignore[arg-type]
         except AddrFormatError:
             # Not an IP
             pass
@@ -388,8 +390,8 @@ class SimpleHttpClient:
             # by the DNS resolution.
             self.agent = BlacklistingAgentWrapper(
                 self.agent,
-                ip_whitelist=self._ip_whitelist,
                 ip_blacklist=self._ip_blacklist,
+                ip_whitelist=self._ip_whitelist,
             )
 
     async def request(
@@ -964,3 +966,42 @@ class InsecureInterceptableContextFactory(ssl.ContextFactory):
 
     def creatorForNetloc(self, hostname: bytes, port: int) -> IOpenSSLContextFactory:
         return self
+
+
+def is_unknown_endpoint(
+    e: HttpResponseException, synapse_error: Optional[SynapseError] = None
+) -> bool:
+    """
+    Returns true if the response was due to an endpoint being unimplemented.
+
+    Args:
+        e: The error response received from the remote server.
+        synapse_error: The above error converted to a SynapseError. This is
+            automatically generated if not provided.
+
+    """
+    if synapse_error is None:
+        synapse_error = e.to_synapse_error()
+
+    # Matrix v1.6 specifies that servers should return a 404 or 405 with an errcode
+    # of M_UNRECOGNIZED when they receive a request to an unknown endpoint or
+    # to an unknown method, respectively.
+    #
+    # Older versions of servers don't return proper errors, so be graceful. But,
+    # also handle that some endpoints truly do return 404 errors.
+    return (
+        # 404 is an unknown endpoint, 405 is a known endpoint, but unknown method.
+        (e.code == 404 or e.code == 405)
+        and (
+            # Consider empty body or non-JSON bodies to be unrecognised (matches
+            # older Dendrites & Conduits).
+            not e.response
+            or not e.response.startswith(b"{")
+            # The proper response JSON with M_UNRECOGNIZED errcode.
+            or synapse_error.errcode == Codes.UNRECOGNIZED
+        )
+    ) or (
+        # Older Synapses returned a 400 error.
+        e.code == 400
+        and synapse_error.errcode == Codes.UNRECOGNIZED
+    )

synapse/http/federation/matrix_federation_agent.py

@@ -87,7 +87,7 @@ class MatrixFederationAgent:
         reactor: ISynapseReactor,
         tls_client_options_factory: Optional[FederationPolicyForHTTPS],
         user_agent: bytes,
-        ip_whitelist: IPSet,
+        ip_whitelist: Optional[IPSet],
         ip_blacklist: IPSet,
         _srv_resolver: Optional[SrvResolver] = None,
         _well_known_resolver: Optional[WellKnownResolver] = None,

synapse/http/server.py

@@ -892,6 +892,10 @@ def set_cors_headers(request: SynapseRequest) -> None:
             b"Access-Control-Allow-Headers",
             b"X-Requested-With, Content-Type, Authorization, Date",
         )
+        request.setHeader(
+            b"Access-Control-Expose-Headers",
+            b"Synapse-Trace-Id",
+        )
 
 
 def set_corp_headers(request: Request) -> None:

synapse/http/servlet.py

@@ -778,17 +778,13 @@ def parse_json_object_from_request(
 Model = TypeVar("Model", bound=BaseModel)
 
 
-def parse_and_validate_json_object_from_request(
-    request: Request, model_type: Type[Model]
-) -> Model:
-    """Parse a JSON object from the body of a twisted HTTP request, then deserialise and
-    validate using the given pydantic model.
+def validate_json_object(content: JsonDict, model_type: Type[Model]) -> Model:
+    """Validate a deserialized JSON object using the given pydantic model.
 
     Raises:
         SynapseError if the request body couldn't be decoded as JSON or
             if it wasn't a JSON object.
     """
-    content = parse_json_object_from_request(request, allow_empty_body=False)
     try:
         instance = model_type.parse_obj(content)
     except ValidationError as e:
@@ -811,6 +807,20 @@ def parse_and_validate_json_object_from_request(
     return instance
 
 
+def parse_and_validate_json_object_from_request(
+    request: Request, model_type: Type[Model]
+) -> Model:
+    """Parse a JSON object from the body of a twisted HTTP request, then deserialise and
+    validate using the given pydantic model.
+
+    Raises:
+        SynapseError if the request body couldn't be decoded as JSON or
+            if it wasn't a JSON object.
+    """
+    content = parse_json_object_from_request(request, allow_empty_body=False)
+    return validate_json_object(content, model_type)
+
+
 def assert_params_in_dict(body: JsonDict, required: Iterable[str]) -> None:
     absent = []
     for k in required:

synapse/http/site.py

@@ -19,6 +19,7 @@ from typing import TYPE_CHECKING, Any, Generator, Optional, Tuple, Union
 import attr
 from zope.interface import implementer
 
+from twisted.internet.address import UNIXAddress
 from twisted.internet.defer import Deferred
 from twisted.internet.interfaces import IAddress, IReactorTime
 from twisted.python.failure import Failure
@@ -257,7 +258,7 @@ class SynapseRequest(Request):
             request_id,
             request=ContextRequest(
                 request_id=request_id,
-                ip_address=self.getClientAddress().host,
+                ip_address=self.get_client_ip_if_available(),
                 site_tag=self.synapse_site.site_tag,
                 # The requester is going to be unknown at this point.
                 requester=None,
@@ -414,7 +415,7 @@ class SynapseRequest(Request):
 
         self.synapse_site.access_logger.debug(
             "%s - %s - Received request: %s %s",
-            self.getClientAddress().host,
+            self.get_client_ip_if_available(),
             self.synapse_site.site_tag,
             self.get_method(),
             self.get_redacted_uri(),
@@ -462,7 +463,7 @@ class SynapseRequest(Request):
             "%s - %s - {%s}"
             " Processed request: %.3fsec/%.3fsec (%.3fsec, %.3fsec) (%.3fsec/%.3fsec/%d)"
             ' %sB %s "%s %s %s" "%s" [%d dbevts]',
-            self.getClientAddress().host,
+            self.get_client_ip_if_available(),
             self.synapse_site.site_tag,
             requester,
             processing_time,
@@ -500,6 +501,26 @@ class SynapseRequest(Request):
 
         return True
 
+    def get_client_ip_if_available(self) -> str:
+        """Logging helper. Return something useful when a client IP is not retrievable
+        from a unix socket.
+
+        In practice, this returns the socket file path on a SynapseRequest if using a
+        unix socket and the normal IP address for TCP sockets.
+
+        """
+        # getClientAddress().host returns a proper IP address for a TCP socket. But
+        # unix sockets have no concept of IP addresses or ports and return a
+        # UNIXAddress containing a 'None' value. In order to get something usable for
+        # logs(where this is used) get the unix socket file. getHost() returns a
+        # UNIXAddress containing a value of the socket file and has an instance
+        # variable of 'name' encoded as a byte string containing the path we want.
+        # Decode to utf-8 so it looks nice.
+        if isinstance(self.getClientAddress(), UNIXAddress):
+            return self.getHost().name.decode("utf-8")
+        else:
+            return self.getClientAddress().host
+
 
 class XForwardedForRequest(SynapseRequest):
     """Request object which honours proxy headers

synapse/media/_base.py

@@ -184,7 +184,9 @@ def add_file_headers(
     # recommend caching as it's sensitive or private - or at least
     # select private. don't bother setting Expires as all our
     # clients are smart enough to be happy with Cache-Control
-    request.setHeader(b"Cache-Control", b"public,max-age=86400,s-maxage=86400")
+    request.setHeader(
+        b"Cache-Control", b"public,immutable,max-age=86400,s-maxage=86400"
+    )
     if file_size is not None:
         request.setHeader(b"Content-Length", b"%d" % (file_size,))
 

synapse/media/thumbnailer.py

@@ -38,7 +38,7 @@ class ThumbnailError(Exception):
 
 
 class Thumbnailer:
-    FORMATS = {"image/jpeg": "JPEG", "image/png": "PNG"}
+    FORMATS = {"image/jpeg": "JPEG", "image/png": "PNG", "image/webp": "WEBP"}
 
     @staticmethod
     def set_limits(max_image_pixels: int) -> None: