Handle SQLite

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>

.github/workflows/docs.yaml

@@ -85,33 +85,3 @@ jobs:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./book
           destination_dir: ./${{ needs.pre.outputs.branch-version }}
-
-################################################################################
-  pages-devdocs:
-    name: GitHub Pages (developer docs)
-    runs-on: ubuntu-latest
-    needs:
-      - pre
-    steps:
-      - uses: actions/checkout@v4
-
-      - 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@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4.0.0
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: ./dev-docs/_build/html
-          destination_dir: ./dev-docs/${{ needs.pre.outputs.branch-version }}

CHANGES.md

@@ -1,3 +1,125 @@
+# Synapse 1.107.0rc1 (2024-05-07)
+
+### Features
+
+- Add preliminary support for [MSC3823: Account Suspension](https://github.com/matrix-org/matrix-spec-proposals/pull/3823). ([\#17051](https://github.com/element-hq/synapse/issues/17051))
+- Declare support for [Matrix v1.10](https://matrix.org/blog/2024/03/22/matrix-v1.10-release/). Contributed by @clokep. ([\#17082](https://github.com/element-hq/synapse/issues/17082))
+- Add support for [MSC4115: membership metadata on events](https://github.com/matrix-org/matrix-spec-proposals/pull/4115). ([\#17104](https://github.com/element-hq/synapse/issues/17104), [\#17137](https://github.com/element-hq/synapse/issues/17137))
+
+### Bugfixes
+
+- Fixed search feature of Element Android on homesevers using SQLite by returning search terms as search highlights. ([\#17000](https://github.com/element-hq/synapse/issues/17000))
+- Fixes a bug introduced in v1.52.0 where the `destination` query parameter for the  [Destination Rooms Admin API](https://element-hq.github.io/synapse/v1.105/usage/administration/admin_api/federation.html#destination-rooms) failed to actually filter returned rooms. ([\#17077](https://github.com/element-hq/synapse/issues/17077))
+- For MSC3266 room summaries, support queries at the recommended endpoint of `/_matrix/client/unstable/im.nheko.summary/summary/{roomIdOrAlias}`. The existing endpoint of `/_matrix/client/unstable/im.nheko.summary/rooms/{roomIdOrAlias}/summary` is deprecated. ([\#17078](https://github.com/element-hq/synapse/issues/17078))
+- Apply user email & picture during OIDC registration if present & selected. ([\#17120](https://github.com/element-hq/synapse/issues/17120))
+- Improve error message for cross signing reset with [MSC3861](https://github.com/matrix-org/matrix-spec-proposals/pull/3861) enabled. ([\#17121](https://github.com/element-hq/synapse/issues/17121))
+- Fix a bug which meant that to-device messages received over federation could be dropped when the server was under load or networking problems caused problems between Synapse processes or the database. ([\#17127](https://github.com/element-hq/synapse/issues/17127))
+- Fix bug where `StreamChangeCache` would not respect configured cache factors. ([\#17152](https://github.com/element-hq/synapse/issues/17152))
+
+### Updates to the Docker image
+
+- Correct licensing metadata on Docker image. ([\#17141](https://github.com/element-hq/synapse/issues/17141))
+
+### Improved Documentation
+
+- Update the `event_cache_size` and `global_factor` configuration options' documentation. ([\#17071](https://github.com/element-hq/synapse/issues/17071))
+- Remove broken sphinx docs. ([\#17073](https://github.com/element-hq/synapse/issues/17073), [\#17148](https://github.com/element-hq/synapse/issues/17148))
+- Add RuntimeDirectory to example matrix-synapse.service systemd unit. ([\#17084](https://github.com/element-hq/synapse/issues/17084))
+- Fix various small typos throughout the docs. ([\#17114](https://github.com/element-hq/synapse/issues/17114))
+- Update enable_notifs configuration documentation. ([\#17116](https://github.com/element-hq/synapse/issues/17116))
+- Update the Upgrade Notes with the latest minimum supported Rust version of 1.66.0. Contributed by @jahway603. ([\#17140](https://github.com/element-hq/synapse/issues/17140))
+
+### Internal Changes
+
+- Enable [MSC3266](https://github.com/matrix-org/matrix-spec-proposals/pull/3266) by default in the Synapse Complement image. ([\#17105](https://github.com/element-hq/synapse/issues/17105))
+- Add optimisation to `StreamChangeCache.get_entities_changed(..)`. ([\#17130](https://github.com/element-hq/synapse/issues/17130))
+
+
+
+### Updates to locked dependencies
+
+* Bump furo from 2024.1.29 to 2024.4.27. ([\#17133](https://github.com/element-hq/synapse/issues/17133))
+* Bump idna from 3.6 to 3.7. ([\#17136](https://github.com/element-hq/synapse/issues/17136))
+* Bump jsonschema from 4.21.1 to 4.22.0. ([\#17157](https://github.com/element-hq/synapse/issues/17157))
+* Bump lxml from 5.1.0 to 5.2.1. ([\#17158](https://github.com/element-hq/synapse/issues/17158))
+* Bump phonenumbers from 8.13.29 to 8.13.35. ([\#17106](https://github.com/element-hq/synapse/issues/17106))
+- Bump pillow from 10.2.0 to 10.3.0. ([\#17146](https://github.com/element-hq/synapse/issues/17146))
+* Bump pydantic from 2.6.4 to 2.7.0. ([\#17107](https://github.com/element-hq/synapse/issues/17107))
+* Bump pydantic from 2.7.0 to 2.7.1. ([\#17160](https://github.com/element-hq/synapse/issues/17160))
+* Bump pyicu from 2.12 to 2.13. ([\#17109](https://github.com/element-hq/synapse/issues/17109))
+* Bump serde from 1.0.197 to 1.0.198. ([\#17111](https://github.com/element-hq/synapse/issues/17111))
+* Bump serde from 1.0.198 to 1.0.199. ([\#17132](https://github.com/element-hq/synapse/issues/17132))
+* Bump serde from 1.0.199 to 1.0.200. ([\#17161](https://github.com/element-hq/synapse/issues/17161))
+* Bump serde_json from 1.0.115 to 1.0.116. ([\#17112](https://github.com/element-hq/synapse/issues/17112))
+- Update `tornado` Python dependency from 6.2 to 6.4. ([\#17131](https://github.com/element-hq/synapse/issues/17131))
+* Bump twisted from 23.10.0 to 24.3.0. ([\#17135](https://github.com/element-hq/synapse/issues/17135))
+* Bump types-bleach from 6.1.0.1 to 6.1.0.20240331. ([\#17110](https://github.com/element-hq/synapse/issues/17110))
+* Bump types-pillow from 10.2.0.20240415 to 10.2.0.20240423. ([\#17159](https://github.com/element-hq/synapse/issues/17159))
+* Bump types-setuptools from 69.0.0.20240125 to 69.5.0.20240423. ([\#17134](https://github.com/element-hq/synapse/issues/17134))
+
+# Synapse 1.106.0 (2024-04-30)
+
+No significant changes since 1.106.0rc1.
+
+
+
+
+# Synapse 1.106.0rc1 (2024-04-25)
+
+### Features
+
+- Send an email if the address is already bound to an user account. ([\#16819](https://github.com/element-hq/synapse/issues/16819))
+- Implement the rendezvous mechanism described by [MSC4108](https://github.com/matrix-org/matrix-spec-proposals/issues/4108). ([\#17056](https://github.com/element-hq/synapse/issues/17056))
+- Support delegating the rendezvous mechanism described [MSC4108](https://github.com/matrix-org/matrix-spec-proposals/issues/4108) to an external implementation. ([\#17086](https://github.com/element-hq/synapse/issues/17086))
+
+### Bugfixes
+
+- Add validation to ensure that the `limit` parameter on `/publicRooms` is non-negative. ([\#16920](https://github.com/element-hq/synapse/issues/16920))
+- Return `400 M_NOT_JSON` upon receiving invalid JSON in query parameters across various client and admin endpoints, rather than an internal server error. ([\#16923](https://github.com/element-hq/synapse/issues/16923))
+- Make the CSAPI endpoint `/keys/device_signing/upload` idempotent. ([\#16943](https://github.com/element-hq/synapse/issues/16943))
+- Redact membership events if the user requested erasure upon deactivating. ([\#17076](https://github.com/element-hq/synapse/issues/17076))
+
+### Improved Documentation
+
+- Add a prompt in the contributing guide to manually configure icu4c. ([\#17069](https://github.com/element-hq/synapse/issues/17069))
+- Clarify what part of message retention is still experimental. ([\#17099](https://github.com/element-hq/synapse/issues/17099))
+
+### Internal Changes
+
+- Use new receipts column to optimise receipt and push action SQL queries. Contributed by Nick @ Beeper (@fizzadar). ([\#17032](https://github.com/element-hq/synapse/issues/17032), [\#17096](https://github.com/element-hq/synapse/issues/17096))
+- Fix mypy with latest Twisted release. ([\#17036](https://github.com/element-hq/synapse/issues/17036))
+- Bump minimum supported Rust version to 1.66.0. ([\#17079](https://github.com/element-hq/synapse/issues/17079))
+- Add helpers to transform Twisted requests to Rust http Requests/Responses. ([\#17081](https://github.com/element-hq/synapse/issues/17081))
+- Fix type annotation for `visited_chains` after `mypy` upgrade. ([\#17125](https://github.com/element-hq/synapse/issues/17125))
+
+
+
+### Updates to locked dependencies
+
+* Bump anyhow from 1.0.81 to 1.0.82. ([\#17095](https://github.com/element-hq/synapse/issues/17095))
+* Bump peaceiris/actions-gh-pages from 3.9.3 to 4.0.0. ([\#17087](https://github.com/element-hq/synapse/issues/17087))
+* Bump peaceiris/actions-mdbook from 1.2.0 to 2.0.0. ([\#17089](https://github.com/element-hq/synapse/issues/17089))
+* Bump pyasn1-modules from 0.3.0 to 0.4.0. ([\#17093](https://github.com/element-hq/synapse/issues/17093))
+* Bump pygithub from 2.2.0 to 2.3.0. ([\#17092](https://github.com/element-hq/synapse/issues/17092))
+* Bump ruff from 0.3.5 to 0.3.7. ([\#17094](https://github.com/element-hq/synapse/issues/17094))
+* Bump sigstore/cosign-installer from 3.4.0 to 3.5.0. ([\#17088](https://github.com/element-hq/synapse/issues/17088))
+* Bump twine from 4.0.2 to 5.0.0. ([\#17091](https://github.com/element-hq/synapse/issues/17091))
+* Bump types-pillow from 10.2.0.20240406 to 10.2.0.20240415. ([\#17090](https://github.com/element-hq/synapse/issues/17090))
+
+# Synapse 1.105.1 (2024-04-23)
+
+## Security advisory
+
+The following issues are fixed in 1.105.1.
+
+- [GHSA-3h7q-rfh9-xm4v](https://github.com/element-hq/synapse/security/advisories/GHSA-3h7q-rfh9-xm4v) / [CVE-2024-31208](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-31208) — High Severity
+
+  Weakness in auth chain indexing allows DoS from remote room members through disk fill and high CPU usage.
+
+See the advisories for more details. If you have any questions, email security@element.io.
+
+
+
 # Synapse 1.105.0 (2024-04-16)
 
 No significant changes since 1.105.0rc1.

Cargo.lock

@@ -4,30 +4,30 @@ version = 3
 
 [[package]]
 name = "aho-corasick"
-version = "1.0.2"
+version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43f6cb1bf222025340178f382c426f13757b2960e89779dfcb319c32542a5a41"
+checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "anyhow"
-version = "1.0.82"
+version = "1.0.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f538837af36e6f6a9be0faa67f9a314f8119e4e4b5867c6ab40ed60360142519"
+checksum = "25bdb32cbbdce2b519a9cd7df3a678443100e265d5e25ca763b7572a5104f5f3"
 
 [[package]]
 name = "arc-swap"
-version = "1.5.1"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "983cd8b9d4b02a6dc6ffa557262eb5858a27a0038ffffe21a0f133eaa819a164"
+checksum = "69f7f8c3906b62b754cd5326047894316021dcfe5a194c8ea52bdd94934a3457"
 
 [[package]]
 name = "autocfg"
-version = "1.1.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+checksum = "0c4b4d0bd25bd0b74681c0ad21497610ce1b7c91b1022cd21c80c6fbdd9476b0"
 
 [[package]]
 name = "base64"
@@ -37,9 +37,9 @@ checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
 [[package]]
 name = "bitflags"
-version = "1.3.2"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
 
 [[package]]
 name = "blake2"
@@ -52,13 +52,19 @@ dependencies = [
 
 [[package]]
 name = "block-buffer"
-version = "0.10.3"
+version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69cce20737498f97b993470a6e536b8523f0af7892a4f928cceb1ac5e52ebe7e"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
 dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "bumpalo"
+version = "3.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
+
 [[package]]
 name = "bytes"
 version = "1.6.0"
@@ -92,9 +98,9 @@ dependencies = [
 
 [[package]]
 name = "digest"
-version = "0.10.5"
+version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "adfbc57365a37acbd2ebf2b64d7e69bb766e2fea813521ed536f5d0520dcf86c"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
  "block-buffer",
  "crypto-common",
@@ -109,14 +115,27 @@ checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
 [[package]]
 name = "generic-array"
-version = "0.14.6"
+version = "0.14.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bff49e947297f3312447abdca79f45f4738097cc82b06e72054d2223f601f1b9"
+checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
 dependencies = [
  "typenum",
  "version_check",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "libc",
+ "wasi",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "headers"
 version = "0.4.0"
@@ -172,15 +191,24 @@ checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
 
 [[package]]
 name = "indoc"
-version = "2.0.4"
+version = "2.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e186cfbae8084e513daff4240b4797e342f988cecda4fb6c939150f96315fd8"
+checksum = "b248f5224d1d606005e02c97f5aa4e88eeb230488bcc03bc9ca4d7991399f2b5"
 
 [[package]]
 name = "itoa"
-version = "1.0.4"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4217ad341ebadf8d8e724e264f13e593e0648f5b3e94b3896a5df283be015ecc"
+checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
+
+[[package]]
+name = "js-sys"
+version = "0.3.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29c15563dc2726973df627357ce0c9ddddbea194836909d655df6a75d2cf296d"
+dependencies = [
+ "wasm-bindgen",
+]
 
 [[package]]
 name = "lazy_static"
@@ -190,15 +218,15 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.153"
+version = "0.2.154"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
+checksum = "ae743338b92ff9146ce83992f766a31066a91a8c84a45e0e9f21e7cf6de6d346"
 
 [[package]]
 name = "lock_api"
-version = "0.4.9"
+version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "435011366fe56583b16cf956f9df0095b405b82d76425bc8981c0e22e60ec4df"
+checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
 dependencies = [
  "autocfg",
  "scopeguard",
@@ -212,15 +240,15 @@ checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
 
 [[package]]
 name = "memchr"
-version = "2.6.3"
+version = "2.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f232d6ef707e1956a43342693d2a31e72989554d58299d7a88738cc95b0d35c"
+checksum = "6c8640c5d730cb13ebd907d8d04b52f55ac9a2eec55b440c8892f40d56c76c1d"
 
 [[package]]
 name = "memoffset"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a634b1c61a95585bd15607c6ab0c4e5b226e695ff2800ba0cdccddf208c406c"
+checksum = "488016bfae457b036d996092f6cb448677611ce4449e970ceaf42695203f218a"
 dependencies = [
  "autocfg",
 ]
@@ -233,15 +261,15 @@ checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
 [[package]]
 name = "once_cell"
-version = "1.15.0"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1"
+checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
 [[package]]
 name = "parking_lot"
-version = "0.12.1"
+version = "0.12.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
+checksum = "7e4af0ca4f6caed20e900d564c242b8e5d4903fdacf31d3daf527b66fe6f42fb"
 dependencies = [
  "lock_api",
  "parking_lot_core",
@@ -249,15 +277,15 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.3"
+version = "0.9.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09a279cbf25cb0757810394fbc1e359949b59e348145c643a939a525692e6929"
+checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
 dependencies = [
  "cfg-if",
  "libc",
  "redox_syscall",
  "smallvec",
- "windows-sys",
+ "windows-targets",
 ]
 
 [[package]]
@@ -267,19 +295,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7170ef9988bc169ba16dd36a7fa041e5c4cbeb6a35b76d4c03daded371eae7c0"
 
 [[package]]
-name = "proc-macro2"
-version = "1.0.76"
+name = "ppv-lite86"
+version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95fc56cda0b5c3325f5fbbd7ff9fda9e02bb00bb3dac51252d2f1bfa1cb8cc8c"
+checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.82"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ad3d49ab951a01fbaafe34f2ec74122942fe18a3f9814c3268f1bb72042131b"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "pyo3"
-version = "0.20.3"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53bdbb96d49157e65d45cc287af5f32ffadd5f4761438b527b055fb0d4bb8233"
+checksum = "a5e00b96a521718e08e03b1a622f01c8a8deb50719335de3f60b3b3950f069d8"
 dependencies = [
  "anyhow",
  "cfg-if",
@@ -296,9 +330,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.20.3"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "deaa5745de3f5231ce10517a1f5dd97d53e5a2fd77aa6b5842292085831d48d7"
+checksum = "7883df5835fafdad87c0d888b266c8ec0f4c9ca48a5bed6bbb592e8dedee1b50"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -306,9 +340,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.20.3"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62b42531d03e08d4ef1f6e85a2ed422eb678b8cd62b762e53891c05faf0d4afa"
+checksum = "01be5843dc60b916ab4dad1dca6d20b9b4e6ddc8e15f50c47fe6d85f1fb97403"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -316,9 +350,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-log"
-version = "0.9.0"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c10808ee7250403bedb24bc30c32493e93875fef7ba3e4292226fe924f398bd"
+checksum = "2af49834b8d2ecd555177e63b273b708dea75150abc6f5341d0a6e1a9623976c"
 dependencies = [
  "arc-swap",
  "log",
@@ -327,9 +361,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.20.3"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7305c720fa01b8055ec95e484a6eca7a83c841267f0dd5280f0c8b8551d2c158"
+checksum = "77b34069fc0682e11b31dbd10321cbf94808394c56fd996796ce45217dfac53c"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -339,9 +373,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.20.3"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c7e9b68bb9c3149c5b0cade5d07f953d6d125eb4337723c4ccdb665f1f96185"
+checksum = "08260721f32db5e1a5beae69a55553f56b99bd0e1c3e6e0a5e8851a9d0f5a85c"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -352,9 +386,9 @@ dependencies = [
 
 [[package]]
 name = "pythonize"
-version = "0.20.0"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ffd1c3ef39c725d63db5f9bc455461bafd80540cb7824c61afb823501921a850"
+checksum = "9d0664248812c38cc55a4ed07f88e4df516ce82604b93b1ffdc041aa77a6cb3c"
 dependencies = [
  "pyo3",
  "serde",
@@ -362,18 +396,48 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.35"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
+checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
-name = "redox_syscall"
-version = "0.2.16"
+name = "rand"
+version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "redox_syscall"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "469052894dcb553421e483e4209ee581a45100d31b4018de03e5a7ad86374a7e"
 dependencies = [
  "bitflags",
 ]
@@ -392,9 +456,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.4.4"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b7fa1134405e2ec9353fd416b17f8dacd46c473d7d3fd1cf202706a14eb792a"
+checksum = "86b83b8b9847f9bf95ef68afb0b8e6cdb80f498442f5179a29fad448fcc1eaea"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -403,36 +467,36 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
+checksum = "adad44e29e4c806119491a7f06f03de4d1af22c3a680dd47f1e6e179439d1f56"
 
 [[package]]
 name = "ryu"
-version = "1.0.11"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09"
+checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
 
 [[package]]
 name = "scopeguard"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "serde"
-version = "1.0.197"
+version = "1.0.200"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fb1c873e1b9b056a4dc4c0c198b24c3ffa059243875552b2bd0933b1aee4ce2"
+checksum = "ddc6f9cc94d67c0e21aaf7eda3a010fd3af78ebf6e096aa6e2e13c79749cce4f"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.197"
+version = "1.0.200"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7eb0b34b42edc17f6b7cac84a52a1c5f0e1bb2227e997ca9011ea3dd34e8610b"
+checksum = "856f046b9400cee3c8c94ed572ecdb752444c24528c035cd35882aad6f492bcb"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -441,9 +505,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.115"
+version = "1.0.116"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12dc5c46daa8e9fdf4f5e71b6cf9a53f2487da0e86e55808e2d35539666497dd"
+checksum = "3e17db7126d17feb94eb3fad46bf1a96b034e8aacbc2e775fe81505f8b0b2813"
 dependencies = [
  "itoa",
  "ryu",
@@ -452,9 +516,20 @@ dependencies = [
 
 [[package]]
 name = "sha1"
-version = "0.10.5"
+version = "0.10.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f04293dc80c3993519f2d7f6f511707ee7094fe0c6d3406feb330cdb3540eba3"
+checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
+[[package]]
+name = "sha2"
+version = "0.10.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "793db75ad2bcafc3ffa7c68b215fee268f537982cd901d132f89c6343f3a3dc8"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -463,21 +538,21 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.10.0"
+version = "1.13.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
+checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
 
 [[package]]
 name = "subtle"
-version = "2.4.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
+checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
 
 [[package]]
 name = "syn"
-version = "2.0.48"
+version = "2.0.61"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f3531638e407dfc0814761abb7c00a5b54992b849452a0646b7f65c9f770f3f"
+checksum = "c993ed8ccba56ae856363b1845da7266a7cb78e1d146c8a32d54b45a8b831fc9"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -489,6 +564,7 @@ name = "synapse"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "base64",
  "blake2",
  "bytes",
  "headers",
@@ -496,31 +572,45 @@ dependencies = [
  "http",
  "lazy_static",
  "log",
+ "mime",
  "pyo3",
  "pyo3-log",
  "pythonize",
  "regex",
  "serde",
  "serde_json",
+ "sha2",
+ "ulid",
 ]
 
 [[package]]
 name = "target-lexicon"
-version = "0.12.4"
+version = "0.12.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c02424087780c9b71cc96799eaeddff35af2bc513278cda5c99fc1f5d026d3c1"
+checksum = "e1fc403891a21bcfb7c37834ba66a547a8f402146eba7265b5a6d88059c9ff2f"
 
 [[package]]
 name = "typenum"
-version = "1.15.0"
+version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
+checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
+
+[[package]]
+name = "ulid"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34778c17965aa2a08913b57e1f34db9b4a63f5de31768b55bf20d2795f921259"
+dependencies = [
+ "getrandom",
+ "rand",
+ "web-time",
+]
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.5"
+version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ceab39d59e4c9499d4e5a8ee0e2735b891bb7308ac83dfb4e80cad195c9f6f3"
+checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
 
 [[package]]
 name = "unindent"
@@ -535,44 +625,135 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
-name = "windows-sys"
-version = "0.36.1"
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea04155a16a59f9eab786fe12a4a450e75cdb175f9e0d80da1e17db09f55b8d2"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4be2531df63900aeb2bca0daaaddec08491ee64ceecbee5076636a3b026795a8"
 dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "614d787b966d3989fa7bb98a654e369c762374fd3213d212cfc0251257e747da"
+dependencies = [
+ "bumpalo",
+ "log",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1f8823de937b71b9460c0c34e25f3da88250760bec0ebac694b49997550d726"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
+
+[[package]]
+name = "web-time"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a6580f308b1fad9207618087a65c04e7a10bc77e02c8e84e9b00dd4b12fa0bb"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.52.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f0713a46559409d202e70e28227288446bf7841d3211583a4b53e3f6d96e7eb"
+dependencies = [
+ "windows_aarch64_gnullvm",
  "windows_aarch64_msvc",
  "windows_i686_gnu",
+ "windows_i686_gnullvm",
  "windows_i686_msvc",
  "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
  "windows_x86_64_msvc",
 ]
 
 [[package]]
-name = "windows_aarch64_msvc"
-version = "0.36.1"
+name = "windows_aarch64_gnullvm"
+version = "0.52.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47"
+checksum = "7088eed71e8b8dda258ecc8bac5fb1153c5cffaf2578fc8ff5d61e23578d3263"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9985fd1504e250c615ca5f281c3f7a6da76213ebd5ccc9561496568a2752afb6"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.36.1"
+version = "0.52.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6"
+checksum = "88ba073cf16d5372720ec942a8ccbf61626074c6d4dd2e745299726ce8b89670"
+
+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.52.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87f4261229030a858f36b459e748ae97545d6f1ec60e5e0d6a3d32e0dc232ee9"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.36.1"
+version = "0.52.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024"
+checksum = "db3c2bf3d13d5b658be73463284eaf12830ac9a26a90c717b7f771dfe97487bf"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.36.1"
+version = "0.52.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1"
+checksum = "4e4246f76bdeff09eb48875a0fd3e2af6aada79d409d33011886d3e1581517d9"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "852298e482cd67c356ddd9570386e2862b5673c85bd5f88df9ab6802b334c596"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.36.1"
+version = "0.52.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
+checksum = "bec47e5bfd1bff0eeaf6d8b485cc1074891a197ab4225d504cb7a1ab88b02bf0"

changelog.d/16920.bugfix

@@ -1 +0,0 @@
-Adds validation to ensure that the `limit` parameter on `/publicRooms` is non-negative.

changelog.d/16923.bugfix

@@ -1 +0,0 @@
-Return `400 M_NOT_JSON` upon receiving invalid JSON in query parameters across various client and admin endpoints, rather than an internal server error.

changelog.d/16943.bugfix

@@ -1 +0,0 @@
-Make the CSAPI endpoint `/keys/device_signing/upload` idempotent.

changelog.d/17032.misc

@@ -1 +0,0 @@
-Use new receipts column to optimise receipt and push action SQL queries. Contributed by Nick @ Beeper (@fizzadar).

changelog.d/17036.misc

@@ -1 +0,0 @@
-Fix mypy with latest Twisted release.

changelog.d/17069.doc

@@ -1 +0,0 @@
-Add a prompt in the contributing guide to manually configure icu4c.

changelog.d/17079.misc

@@ -1 +0,0 @@
-Bump minimum supported Rust version to 1.66.0.

changelog.d/17081.misc

@@ -1 +0,0 @@
-Add helpers to transform Twisted requests to Rust http Requests/Responses.

changelog.d/17086.feature

@@ -1 +0,0 @@
-Support delegating the rendezvous mechanism described MSC4108 to an external implementation.

changelog.d/17096.misc

@@ -1 +0,0 @@
-Use new receipts column to optimise receipt and push action SQL queries. Contributed by Nick @ Beeper (@fizzadar).

changelog.d/17099.doc

@@ -1 +0,0 @@
-Clarify what part of message retention is still experimental.

changelog.d/17139.doc

@@ -0,0 +1 @@
+Update User Admin API with note about prefixing OIDC external_id providers.

changelog.d/17145.bugfix

@@ -0,0 +1 @@
+Add support for optional whitespace around the Federation API's `Authorization` header's parameter commas.

changelog.d/17150.doc

@@ -0,0 +1 @@
+Clarify the state of the created room when using the `autocreate_auto_join_room_preset` config option.

changelog.d/17151.misc

@@ -0,0 +1 @@
+Add note to reflect that [MSC3886](https://github.com/matrix-org/matrix-spec-proposals/pull/3886) is closed but will support will remain for some time.

changelog.d/17162.misc

@@ -0,0 +1 @@
+Update dependency PyO3 to 0.21.

changelog.d/17169.misc

@@ -0,0 +1 @@
+Add database performance improvement when fetching auth chains.

debian/changelog

@@ -1,3 +1,27 @@
+matrix-synapse-py3 (1.107.0~rc1) stable; urgency=medium
+
+  * New Synapse release 1.107.0rc1.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 07 May 2024 16:26:26 +0100
+
+matrix-synapse-py3 (1.106.0) stable; urgency=medium
+
+  * New Synapse release 1.106.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 30 Apr 2024 11:51:43 +0100
+
+matrix-synapse-py3 (1.106.0~rc1) stable; urgency=medium
+
+  * New Synapse release 1.106.0rc1.
+
+ -- Synapse Packaging team <packages@matrix.org>  Thu, 25 Apr 2024 15:54:59 +0100
+
+matrix-synapse-py3 (1.105.1) stable; urgency=medium
+
+  * New Synapse release 1.105.1.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 23 Apr 2024 15:56:18 +0100
+
 matrix-synapse-py3 (1.105.0) stable; urgency=medium
 
   * New Synapse release 1.105.0.

dev-docs/Makefile

@@ -1,20 +0,0 @@
-# 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

@@ -1,50 +0,0 @@
-# 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

@@ -1,22 +0,0 @@
-.. 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

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

docker/Dockerfile

@@ -163,7 +163,7 @@ FROM docker.io/library/python:${PYTHON_VERSION}-slim-bookworm
 LABEL org.opencontainers.image.url='https://matrix.org/docs/projects/server/synapse'
 LABEL org.opencontainers.image.documentation='https://github.com/element-hq/synapse/blob/master/docker/README.md'
 LABEL org.opencontainers.image.source='https://github.com/element-hq/synapse.git'
-LABEL org.opencontainers.image.licenses='Apache-2.0'
+LABEL org.opencontainers.image.licenses='AGPL-3.0-or-later'
 
 RUN \
   --mount=type=cache,target=/var/cache/apt,sharing=locked \

docker/complement/conf/workers-shared-extra.yaml.j2

@@ -92,8 +92,6 @@ allow_device_name_lookup_over_federation: true
 ## Experimental Features ##
 
 experimental_features:
-  # client-side support for partial state in /send_join responses
-  faster_joins: true
   # Enable support for polls
   msc3381_polls_enabled: true
   # Enable deleting device-specific notification settings stored in account data
@@ -104,6 +102,10 @@ experimental_features:
   msc3874_enabled: true
   # no UIA for x-signing upload for the first time
   msc3967_enabled: true
+  # Expose a room summary for public rooms
+  msc3266_enabled: true
+
+  msc4115_membership_on_events: true
 
 server_notices:
   system_mxid_localpart: _server

docs/admin_api/room_membership.md

@@ -1,6 +1,6 @@
 # Edit Room Membership API
 
-This API allows an administrator to join an user account with a given `user_id`
+This API allows an administrator to join a user account with a given `user_id`
 to a room with a given `room_id_or_alias`. You can only modify the membership of
 local users. The server administrator must be in the room and have permission to
 invite users.

docs/admin_api/user_admin_api.md

@@ -141,8 +141,8 @@ Body parameters:
   provider for SSO (Single sign-on). More details are in the configuration manual under the
   sections [sso](../usage/configuration/config_documentation.md#sso) and [oidc_providers](../usage/configuration/config_documentation.md#oidc_providers).
   - `auth_provider` - **string**, required. The unique, internal ID of the external identity provider.
-    The same as `idp_id` from the homeserver configuration. Note that no error is raised if the
-    provided value is not in the homeserver configuration.
+    The same as `idp_id` from the homeserver configuration. If using OIDC, this value should be prefixed
+    with `oidc-`. Note that no error is raised if the provided value is not in the homeserver configuration.
   - `external_id` - **string**, required. An identifier for the user in the external identity provider.
     When the user logs in to the identity provider, this must be the unique ID that they map to.
 - `admin` - **bool**, optional, defaults to `false`. Whether the user is a homeserver administrator,

docs/message_retention_policies.md

@@ -51,8 +51,8 @@ clients.
 
 ## Server configuration
 
-Support for this feature can be enabled and configured by adding a the
-`retention` in the Synapse configuration file (see
+Support for this feature can be enabled and configured by adding the
+`retention` option in the Synapse configuration file (see
 [configuration manual](usage/configuration/config_documentation.md#retention)).
 
 To enable support for message retention policies, set the setting
@@ -117,7 +117,7 @@ In this example, we define three jobs:
   policy's `max_lifetime` is greater than a week.
 
 Note that this example is tailored to show different configurations and
-features slightly more jobs than it's probably necessary (in practice, a
+features slightly more jobs than is probably necessary (in practice, a
 server admin would probably consider it better to replace the two last
 jobs with one that runs once a day and handles rooms which
 policy's `max_lifetime` is greater than 3 days).

docs/postgres.md

@@ -128,7 +128,7 @@ can read more about that [here](https://www.postgresql.org/docs/10/kernel-resour
 ### Overview
 
 The script `synapse_port_db` allows porting an existing synapse server
-backed by SQLite to using PostgreSQL. This is done in as a two phase
+backed by SQLite to using PostgreSQL. This is done as a two phase
 process:
 
 1.  Copy the existing SQLite database to a separate location and run

docs/setup/installation.md

@@ -259,9 +259,9 @@ users, etc.) to the developers via the `--report-stats` argument.
 
 This command will generate you a config file that you can then customise, but it will
 also generate a set of keys for you. These keys will allow your homeserver to
-identify itself to other homeserver, so don't lose or delete them. It would be
+identify itself to other homeservers, so don't lose or delete them. It would be
 wise to back them up somewhere safe. (If, for whatever reason, you do need to
-change your homeserver's keys, you may find that other homeserver have the
+change your homeserver's keys, you may find that other homeservers have the
 old key cached. If you update the signing key, you should change the name of the
 key in the `<server name>.signing.key` file (the second word) to something
 different. See the [spec](https://matrix.org/docs/spec/server_server/latest.html#retrieving-server-keys) for more information on key management).

docs/sso_mapping_providers.md

@@ -98,6 +98,7 @@ A custom mapping provider must specify the following methods:
         either accept this localpart or pick their own username. Otherwise this
         option has no effect. If omitted, defaults to `False`.
       - `display_name`: An optional string, the display name for the user.
+      - `picture`: An optional string, the avatar url for the user.
       - `emails`: A list of strings, the email address(es) to associate with
         this user. If omitted, defaults to an empty list.
 * `async def get_extra_attributes(self, userinfo, token)`

docs/systemd-with-workers/system/matrix-synapse.service

@@ -9,6 +9,7 @@ ReloadPropagatedFrom=matrix-synapse.target
 Type=notify
 NotifyAccess=main
 User=matrix-synapse
+RuntimeDirectory=synapse
 WorkingDirectory=/var/lib/matrix-synapse
 EnvironmentFile=-/etc/default/matrix-synapse
 ExecStartPre=/opt/venvs/matrix-synapse/bin/python -m synapse.app.homeserver --config-path=/etc/matrix-synapse/homeserver.yaml --config-path=/etc/matrix-synapse/conf.d/ --generate-keys

docs/upgrade.md

@@ -117,6 +117,14 @@ each upgrade are complete before moving on to the next upgrade, to avoid
 stacking them up. You can monitor the currently running background updates with
 [the Admin API](usage/administration/admin_api/background_updates.html#status).
 
+# Upgrading to v1.106.0
+
+## Minimum supported Rust version
+The minimum supported Rust version has been increased from v1.65.0 to v1.66.0.
+Users building from source will need to ensure their `rustc` version is up to
+date.
+
+
 # Upgrading to v1.100.0
 
 ## Minimum supported Rust version

docs/usage/administration/admin_api/background_updates.md

@@ -44,7 +44,7 @@ For each update:
 
 ## Enabled
 
-This API allow pausing background updates.
+This API allows pausing background updates.
 
 Background updates should *not* be paused for significant periods of time, as
 this can affect the performance of Synapse.

docs/usage/administration/admin_faq.md

@@ -241,7 +241,7 @@ in memory constrained environments, or increased if performance starts to
 degrade.
 
 However, degraded performance due to a low cache factor, common on
-machines with slow disks, often leads to explosions in memory use due
+machines with slow disks, often leads to explosions in memory use due to
 backlogged requests. In this case, reducing the cache factor will make
 things worse. Instead, try increasing it drastically. 2.0 is a good
 starting value.

docs/usage/configuration/config_documentation.md

@@ -676,8 +676,8 @@ This setting has the following sub-options:
     trailing 's'.
 * `app_name`: `app_name` defines the default value for '%(app)s' in `notif_from` and email
    subjects. It defaults to 'Matrix'.
-* `enable_notifs`: Set to true to enable sending emails for messages that the user
-   has missed. Disabled by default.
+* `enable_notifs`: Set to true to allow users to receive e-mail notifications. If this is not set,
+    users can configure e-mail notifications but will not receive them. Disabled by default.
 * `notif_for_new_users`: Set to false to disable automatic subscription to email
    notifications for new users. Enabled by default.
 * `notif_delay_before_mail`: The time to wait before emailing about a notification.
@@ -1317,6 +1317,12 @@ Options related to caching.
 The number of events to cache in memory. Defaults to 10K. Like other caches,
 this is affected by `caches.global_factor` (see below).
 
+For example, the default is 10K and the global_factor default is 0.5.
+
+Since 10K * 0.5 is 5K then the event cache size will be 5K.
+
+The cache affected by this configuration is named as "*getEvent*".
+
 Note that this option is not part of the `caches` section.
 
 Example configuration:
@@ -1342,6 +1348,8 @@ number of entries that can be stored.
 
   Defaults to 0.5, which will halve the size of all caches.
 
+  Note that changing this value also affects the HTTP connection pool.
+
 * `per_cache_factors`: A dictionary of cache name to cache factor for that individual
    cache. Overrides the global cache factor for a given cache.
 
@@ -2583,6 +2591,11 @@ Possible values for this option are:
 * "trusted_private_chat": an invitation is required to join this room and the invitee is
   assigned a power level of 100 upon joining the room.
 
+Each preset will set up a room in the same manner as if it were provided as the `preset` parameter when
+calling the
+[`POST /_matrix/client/v3/createRoom`](https://spec.matrix.org/latest/client-server-api/#post_matrixclientv3createroom)
+Client-Server API endpoint.
+
 If a value of "private_chat" or "trusted_private_chat" is used then
 `auto_join_mxid_localpart` must also be configured.
 

docs/user_directory.md

@@ -86,9 +86,9 @@ The search term is then split into words:
 * If unavailable, then runs of ASCII characters, numbers, underscores, and hyphens
   are considered words.
 
-The queries for PostgreSQL and SQLite are detailed below, by their overall goal
+The queries for PostgreSQL and SQLite are detailed below, but their overall goal
 is to find matching users, preferring users who are "real" (e.g. not bots,
-not deactivated). It is assumed that real users will have an display name and
+not deactivated). It is assumed that real users will have a display name and
 avatar set.
 
 ### PostgreSQL

docs/workers.md

@@ -232,7 +232,7 @@ information.
     ^/_matrix/client/v1/rooms/.*/hierarchy$
     ^/_matrix/client/(v1|unstable)/rooms/.*/relations/
     ^/_matrix/client/v1/rooms/.*/threads$
-    ^/_matrix/client/unstable/im.nheko.summary/rooms/.*/summary$
+    ^/_matrix/client/unstable/im.nheko.summary/summary/.*$
     ^/_matrix/client/(r0|v3|unstable)/account/3pid$
     ^/_matrix/client/(r0|v3|unstable)/account/whoami$
     ^/_matrix/client/(r0|v3|unstable)/devices$
@@ -634,7 +634,7 @@ worker application type.
 
 #### Push Notifications
 
-You can designate generic worker to sending push notifications to
+You can designate generic workers to send push notifications to
 a [push gateway](https://spec.matrix.org/v1.5/push-gateway-api/) such as
 [sygnal](https://github.com/matrix-org/sygnal) and email.
 

pyproject.toml

@@ -96,7 +96,7 @@ module-name = "synapse.synapse_rust"
 
 [tool.poetry]
 name = "matrix-synapse"
-version = "1.105.0"
+version = "1.107.0rc1"
 description = "Homeserver for the Matrix decentralised comms protocol"
 authors = ["Matrix.org Team and Contributors <packages@matrix.org>"]
 license = "AGPL-3.0-or-later"
@@ -364,17 +364,6 @@ towncrier = ">=18.6.0rc1"
 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,<0.6.0", python = "^3.8"}
-myst-parser = {version = "^1.0.0", python = "^3.8"}
-furo = ">=2022.12.7,<2025.0.0"
-
-
 [build-system]
 # The upper bounds here are defensive, intended to prevent situations like
 # https://github.com/matrix-org/synapse/issues/13849 and

rust/Cargo.toml

@@ -23,22 +23,26 @@ name = "synapse.synapse_rust"
 
 [dependencies]
 anyhow = "1.0.63"
+base64 = "0.21.7"
 bytes = "1.6.0"
 headers = "0.4.0"
 http = "1.1.0"
 lazy_static = "1.4.0"
 log = "0.4.17"
-pyo3 = { version = "0.20.0", features = [
+mime = "0.3.17"
+pyo3 = { version = "0.21.0", features = [
     "macros",
     "anyhow",
     "abi3",
     "abi3-py38",
 ] }
-pyo3-log = "0.9.0"
-pythonize = "0.20.0"
+pyo3-log = "0.10.0"
+pythonize = "0.21.0"
 regex = "1.6.0"
+sha2 = "0.10.8"
 serde = { version = "1.0.144", features = ["derive"] }
 serde_json = "1.0.85"
+ulid = "1.1.2"
 
 [features]
 extension-module = ["pyo3/extension-module"]

rust/src/acl/mod.rs

@@ -25,21 +25,21 @@ use std::net::Ipv4Addr;
 use std::str::FromStr;
 
 use anyhow::Error;
-use pyo3::prelude::*;
+use pyo3::{prelude::*, pybacked::PyBackedStr};
 use regex::Regex;
 
 use crate::push::utils::{glob_to_regex, GlobMatchType};
 
 /// Called when registering modules with python.
-pub fn register_module(py: Python<'_>, m: &PyModule) -> PyResult<()> {
-    let child_module = PyModule::new(py, "acl")?;
+pub fn register_module(py: Python<'_>, m: &Bound<'_, PyModule>) -> PyResult<()> {
+    let child_module = PyModule::new_bound(py, "acl")?;
     child_module.add_class::<ServerAclEvaluator>()?;
 
-    m.add_submodule(child_module)?;
+    m.add_submodule(&child_module)?;
 
     // We need to manually add the module to sys.modules to make `from
     // synapse.synapse_rust import acl` work.
-    py.import("sys")?
+    py.import_bound("sys")?
         .getattr("modules")?
         .set_item("synapse.synapse_rust.acl", child_module)?;
 
@@ -59,8 +59,8 @@ impl ServerAclEvaluator {
     #[new]
     pub fn py_new(
         allow_ip_literals: bool,
-        allow: Vec<&str>,
-        deny: Vec<&str>,
+        allow: Vec<PyBackedStr>,
+        deny: Vec<PyBackedStr>,
     ) -> Result<Self, Error> {
         let allow = allow
             .iter()

rust/src/events/internal_metadata.rs

@@ -20,8 +20,10 @@
 
 //! Implements the internal metadata class attached to events.
 //!
-//! The internal metadata is a bit like a `TypedDict`, in that it is stored as a
-//! JSON dict in the DB. Most events have zero, or only a few, of these keys
+//! The internal metadata is a bit like a `TypedDict`, in that most of
+//! it is stored as a JSON dict in the DB (the exceptions being `outlier`
+//! and `stream_ordering` which have their own columns in the database).
+//! Most events have zero, or only a few, of these keys
 //! set. Therefore, since we care more about memory size than performance here,
 //! we store these fields in a mapping.
 //!
@@ -36,9 +38,10 @@ use anyhow::Context;
 use log::warn;
 use pyo3::{
     exceptions::PyAttributeError,
+    pybacked::PyBackedStr,
     pyclass, pymethods,
-    types::{PyDict, PyString},
-    IntoPy, PyAny, PyObject, PyResult, Python,
+    types::{PyAnyMethods, PyDict, PyDictMethods, PyString},
+    Bound, IntoPy, PyAny, PyObject, PyResult, Python,
 };
 
 /// Definitions of the various fields of the internal metadata.
@@ -57,7 +60,7 @@ enum EventInternalMetadataData {
 
 impl EventInternalMetadataData {
     /// Convert the field to its name and python object.
-    fn to_python_pair<'a>(&self, py: Python<'a>) -> (&'a PyString, PyObject) {
+    fn to_python_pair<'a>(&self, py: Python<'a>) -> (&'a Bound<'a, PyString>, PyObject) {
         match self {
             EventInternalMetadataData::OutOfBandMembership(o) => {
                 (pyo3::intern!(py, "out_of_band_membership"), o.into_py(py))
@@ -88,10 +91,13 @@ impl EventInternalMetadataData {
     /// Converts from python key/values to the field.
     ///
     /// Returns `None` if the key is a valid but unrecognized string.
-    fn from_python_pair(key: &PyAny, value: &PyAny) -> PyResult<Option<Self>> {
-        let key_str: &str = key.extract()?;
+    fn from_python_pair(
+        key: &Bound<'_, PyAny>,
+        value: &Bound<'_, PyAny>,
+    ) -> PyResult<Option<Self>> {
+        let key_str: PyBackedStr = key.extract()?;
 
-        let e = match key_str {
+        let e = match &*key_str {
             "out_of_band_membership" => EventInternalMetadataData::OutOfBandMembership(
                 value
                     .extract()
@@ -208,11 +214,11 @@ pub struct EventInternalMetadata {
 #[pymethods]
 impl EventInternalMetadata {
     #[new]
-    fn new(dict: &PyDict) -> PyResult<Self> {
+    fn new(dict: &Bound<'_, PyDict>) -> PyResult<Self> {
         let mut data = Vec::with_capacity(dict.len());
 
         for (key, value) in dict.iter() {
-            match EventInternalMetadataData::from_python_pair(key, value) {
+            match EventInternalMetadataData::from_python_pair(&key, &value) {
                 Ok(Some(entry)) => data.push(entry),
                 Ok(None) => {}
                 Err(err) => {
@@ -234,8 +240,11 @@ impl EventInternalMetadata {
         self.clone()
     }
 
+    /// Get a dict holding the data stored in the `internal_metadata` column in the database.
+    ///
+    /// Note that `outlier` and `stream_ordering` are stored in separate columns so are not returned here.
     fn get_dict(&self, py: Python<'_>) -> PyResult<PyObject> {
-        let dict = PyDict::new(py);
+        let dict = PyDict::new_bound(py);
 
         for entry in &self.data {
             let (key, value) = entry.to_python_pair(py);

rust/src/events/mod.rs

@@ -20,20 +20,23 @@
 
 //! Classes for representing Events.
 
-use pyo3::{types::PyModule, PyResult, Python};
+use pyo3::{
+    types::{PyAnyMethods, PyModule, PyModuleMethods},
+    Bound, PyResult, Python,
+};
 
 mod internal_metadata;
 
 /// Called when registering modules with python.
-pub fn register_module(py: Python<'_>, m: &PyModule) -> PyResult<()> {
-    let child_module = PyModule::new(py, "events")?;
+pub fn register_module(py: Python<'_>, m: &Bound<'_, PyModule>) -> PyResult<()> {
+    let child_module = PyModule::new_bound(py, "events")?;
     child_module.add_class::<internal_metadata::EventInternalMetadata>()?;
 
-    m.add_submodule(child_module)?;
+    m.add_submodule(&child_module)?;
 
     // We need to manually add the module to sys.modules to make `from
     // synapse.synapse_rust import events` work.
-    py.import("sys")?
+    py.import_bound("sys")?
         .getattr("modules")?
         .set_item("synapse.synapse_rust.events", child_module)?;
 

rust/src/http.rs

@@ -17,8 +17,8 @@ use headers::{Header, HeaderMapExt};
 use http::{HeaderName, HeaderValue, Method, Request, Response, StatusCode, Uri};
 use pyo3::{
     exceptions::PyValueError,
-    types::{PyBytes, PySequence, PyTuple},
-    PyAny, PyResult,
+    types::{PyAnyMethods, PyBytes, PyBytesMethods, PySequence, PyTuple},
+    Bound, PyAny, PyResult,
 };
 
 use crate::errors::SynapseError;
@@ -28,10 +28,11 @@ use crate::errors::SynapseError;
 /// # Errors
 ///
 /// Returns an error if calling the `read` on the Python object failed
-fn read_io_body(body: &PyAny, chunk_size: usize) -> PyResult<Bytes> {
+fn read_io_body(body: &Bound<'_, PyAny>, chunk_size: usize) -> PyResult<Bytes> {
     let mut buf = BytesMut::new();
     loop {
-        let bytes: &PyBytes = body.call_method1("read", (chunk_size,))?.downcast()?;
+        let bound = &body.call_method1("read", (chunk_size,))?;
+        let bytes: &Bound<'_, PyBytes> = bound.downcast()?;
         if bytes.as_bytes().is_empty() {
             return Ok(buf.into());
         }
@@ -50,17 +51,19 @@ fn read_io_body(body: &PyAny, chunk_size: usize) -> PyResult<Bytes> {
 /// # Errors
 ///
 /// Returns an error if the Python object doesn't properly implement `IRequest`
-pub fn http_request_from_twisted(request: &PyAny) -> PyResult<Request<Bytes>> {
+pub fn http_request_from_twisted(request: &Bound<'_, PyAny>) -> PyResult<Request<Bytes>> {
     let content = request.getattr("content")?;
-    let body = read_io_body(content, 4096)?;
+    let body = read_io_body(&content, 4096)?;
 
     let mut req = Request::new(body);
 
-    let uri: &PyBytes = request.getattr("uri")?.downcast()?;
+    let bound = &request.getattr("uri")?;
+    let uri: &Bound<'_, PyBytes> = bound.downcast()?;
     *req.uri_mut() =
         Uri::try_from(uri.as_bytes()).map_err(|_| PyValueError::new_err("invalid uri"))?;
 
-    let method: &PyBytes = request.getattr("method")?.downcast()?;
+    let bound = &request.getattr("method")?;
+    let method: &Bound<'_, PyBytes> = bound.downcast()?;
     *req.method_mut() = Method::from_bytes(method.as_bytes())
         .map_err(|_| PyValueError::new_err("invalid method"))?;
 
@@ -71,14 +74,17 @@ pub fn http_request_from_twisted(request: &PyAny) -> PyResult<Request<Bytes>> {
 
     for header in headers_iter {
         let header = header?;
-        let header: &PyTuple = header.downcast()?;
-        let name: &PyBytes = header.get_item(0)?.downcast()?;
+        let header: &Bound<'_, PyTuple> = header.downcast()?;
+        let bound = &header.get_item(0)?;
+        let name: &Bound<'_, PyBytes> = bound.downcast()?;
         let name = HeaderName::from_bytes(name.as_bytes())
             .map_err(|_| PyValueError::new_err("invalid header name"))?;
 
-        let values: &PySequence = header.get_item(1)?.downcast()?;
+        let bound = &header.get_item(1)?;
+        let values: &Bound<'_, PySequence> = bound.downcast()?;
         for index in 0..values.len()? {
-            let value: &PyBytes = values.get_item(index)?.downcast()?;
+            let bound = &values.get_item(index)?;
+            let value: &Bound<'_, PyBytes> = bound.downcast()?;
             let value = HeaderValue::from_bytes(value.as_bytes())
                 .map_err(|_| PyValueError::new_err("invalid header value"))?;
             req.headers_mut().append(name.clone(), value);
@@ -100,7 +106,10 @@ pub fn http_request_from_twisted(request: &PyAny) -> PyResult<Request<Bytes>> {
 ///  # Errors
 ///
 /// Returns an error if the Python object doesn't properly implement `IRequest`
-pub fn http_response_to_twisted<B>(request: &PyAny, response: Response<B>) -> PyResult<()>
+pub fn http_response_to_twisted<B>(
+    request: &Bound<'_, PyAny>,
+    response: Response<B>,
+) -> PyResult<()>
 where
     B: Buf,
 {

rust/src/lib.rs

@@ -7,6 +7,7 @@ pub mod errors;
 pub mod events;
 pub mod http;
 pub mod push;
+pub mod rendezvous;
 
 lazy_static! {
     static ref LOGGING_HANDLE: ResetHandle = pyo3_log::init();
@@ -37,7 +38,7 @@ fn reset_logging_config() {
 
 /// The entry point for defining the Python module.
 #[pymodule]
-fn synapse_rust(py: Python<'_>, m: &PyModule) -> PyResult<()> {
+fn synapse_rust(py: Python<'_>, m: &Bound<'_, PyModule>) -> PyResult<()> {
     m.add_function(wrap_pyfunction!(sum_as_string, m)?)?;
     m.add_function(wrap_pyfunction!(get_rust_file_digest, m)?)?;
     m.add_function(wrap_pyfunction!(reset_logging_config, m)?)?;
@@ -45,6 +46,7 @@ fn synapse_rust(py: Python<'_>, m: &PyModule) -> PyResult<()> {
     acl::register_module(py, m)?;
     push::register_module(py, m)?;
     events::register_module(py, m)?;
+    rendezvous::register_module(py, m)?;
 
     Ok(())
 }

rust/src/push/mod.rs

@@ -66,7 +66,7 @@ use log::warn;
 use pyo3::exceptions::PyTypeError;
 use pyo3::prelude::*;
 use pyo3::types::{PyBool, PyList, PyLong, PyString};
-use pythonize::{depythonize, pythonize};
+use pythonize::{depythonize_bound, pythonize};
 use serde::de::Error as _;
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
@@ -78,19 +78,19 @@ pub mod evaluator;
 pub mod utils;
 
 /// Called when registering modules with python.
-pub fn register_module(py: Python<'_>, m: &PyModule) -> PyResult<()> {
-    let child_module = PyModule::new(py, "push")?;
+pub fn register_module(py: Python<'_>, m: &Bound<'_, PyModule>) -> PyResult<()> {
+    let child_module = PyModule::new_bound(py, "push")?;
     child_module.add_class::<PushRule>()?;
     child_module.add_class::<PushRules>()?;
     child_module.add_class::<FilteredPushRules>()?;
     child_module.add_class::<PushRuleEvaluator>()?;
     child_module.add_function(wrap_pyfunction!(get_base_rule_ids, m)?)?;
 
-    m.add_submodule(child_module)?;
+    m.add_submodule(&child_module)?;
 
     // We need to manually add the module to sys.modules to make `from
     // synapse.synapse_rust import push` work.
-    py.import("sys")?
+    py.import_bound("sys")?
         .getattr("modules")?
         .set_item("synapse.synapse_rust.push", child_module)?;
 
@@ -271,12 +271,12 @@ pub enum SimpleJsonValue {
 
 impl<'source> FromPyObject<'source> for SimpleJsonValue {
     fn extract(ob: &'source PyAny) -> PyResult<Self> {
-        if let Ok(s) = <PyString as pyo3::PyTryFrom>::try_from(ob) {
+        if let Ok(s) = ob.downcast::<PyString>() {
             Ok(SimpleJsonValue::Str(Cow::Owned(s.to_string())))
         // A bool *is* an int, ensure we try bool first.
-        } else if let Ok(b) = <PyBool as pyo3::PyTryFrom>::try_from(ob) {
+        } else if let Ok(b) = ob.downcast::<PyBool>() {
             Ok(SimpleJsonValue::Bool(b.extract()?))
-        } else if let Ok(i) = <PyLong as pyo3::PyTryFrom>::try_from(ob) {
+        } else if let Ok(i) = ob.downcast::<PyLong>() {
             Ok(SimpleJsonValue::Int(i.extract()?))
         } else if ob.is_none() {
             Ok(SimpleJsonValue::Null)
@@ -299,7 +299,7 @@ pub enum JsonValue {
 
 impl<'source> FromPyObject<'source> for JsonValue {
     fn extract(ob: &'source PyAny) -> PyResult<Self> {
-        if let Ok(l) = <PyList as pyo3::PyTryFrom>::try_from(ob) {
+        if let Ok(l) = ob.downcast::<PyList>() {
             match l.iter().map(SimpleJsonValue::extract).collect() {
                 Ok(a) => Ok(JsonValue::Array(a)),
                 Err(e) => Err(PyTypeError::new_err(format!(
@@ -370,8 +370,8 @@ impl IntoPy<PyObject> for Condition {
 }
 
 impl<'source> FromPyObject<'source> for Condition {
-    fn extract(ob: &'source PyAny) -> PyResult<Self> {
-        Ok(depythonize(ob)?)
+    fn extract_bound(ob: &Bound<'source, PyAny>) -> PyResult<Self> {
+        Ok(depythonize_bound(ob.clone())?)
     }
 }
 

rust/src/rendezvous/mod.rs

@@ -0,0 +1,327 @@
+/*
+ * This file is licensed under the Affero General Public License (AGPL) version 3.
+ *
+ * Copyright (C) 2024 New Vector, Ltd
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * See the GNU Affero General Public License for more details:
+ * <https://www.gnu.org/licenses/agpl-3.0.html>.
+ *
+ */
+
+use std::{
+    collections::{BTreeMap, HashMap},
+    time::{Duration, SystemTime},
+};
+
+use bytes::Bytes;
+use headers::{
+    AccessControlAllowOrigin, AccessControlExposeHeaders, CacheControl, ContentLength, ContentType,
+    HeaderMapExt, IfMatch, IfNoneMatch, Pragma,
+};
+use http::{header::ETAG, HeaderMap, Response, StatusCode, Uri};
+use mime::Mime;
+use pyo3::{
+    exceptions::PyValueError,
+    pyclass, pymethods,
+    types::{PyAnyMethods, PyModule, PyModuleMethods},
+    Bound, Py, PyAny, PyObject, PyResult, Python, ToPyObject,
+};
+use ulid::Ulid;
+
+use self::session::Session;
+use crate::{
+    errors::{NotFoundError, SynapseError},
+    http::{http_request_from_twisted, http_response_to_twisted, HeaderMapPyExt},
+};
+
+mod session;
+
+// n.b. Because OPTIONS requests are handled by the Python code, we don't need to set Access-Control-Allow-Headers.
+fn prepare_headers(headers: &mut HeaderMap, session: &Session) {
+    headers.typed_insert(AccessControlAllowOrigin::ANY);
+    headers.typed_insert(AccessControlExposeHeaders::from_iter([ETAG]));
+    headers.typed_insert(Pragma::no_cache());
+    headers.typed_insert(CacheControl::new().with_no_store());
+    headers.typed_insert(session.etag());
+    headers.typed_insert(session.expires());
+    headers.typed_insert(session.last_modified());
+}
+
+#[pyclass]
+struct RendezvousHandler {
+    base: Uri,
+    clock: PyObject,
+    sessions: BTreeMap<Ulid, Session>,
+    capacity: usize,
+    max_content_length: u64,
+    ttl: Duration,
+}
+
+impl RendezvousHandler {
+    /// Check the input headers of a request which sets data for a session, and return the content type.
+    fn check_input_headers(&self, headers: &HeaderMap) -> PyResult<Mime> {
+        let ContentLength(content_length) = headers.typed_get_required()?;
+
+        if content_length > self.max_content_length {
+            return Err(SynapseError::new(
+                StatusCode::PAYLOAD_TOO_LARGE,
+                "Payload too large".to_owned(),
+                "M_TOO_LARGE",
+                None,
+                None,
+            ));
+        }
+
+        let content_type: ContentType = headers.typed_get_required()?;
+
+        // Content-Type must be text/plain
+        if content_type != ContentType::text() {
+            return Err(SynapseError::new(
+                StatusCode::BAD_REQUEST,
+                "Content-Type must be text/plain".to_owned(),
+                "M_INVALID_PARAM",
+                None,
+                None,
+            ));
+        }
+
+        Ok(content_type.into())
+    }
+
+    /// Evict expired sessions and remove the oldest sessions until we're under the capacity.
+    fn evict(&mut self, now: SystemTime) {
+        // First remove all the entries which expired
+        self.sessions.retain(|_, session| !session.expired(now));
+
+        // Then we remove the oldest entires until we're under the limit
+        while self.sessions.len() > self.capacity {
+            self.sessions.pop_first();
+        }
+    }
+}
+
+#[pymethods]
+impl RendezvousHandler {
+    #[new]
+    #[pyo3(signature = (homeserver, /, capacity=100, max_content_length=4*1024, eviction_interval=60*1000, ttl=60*1000))]
+    fn new(
+        py: Python<'_>,
+        homeserver: &Bound<'_, PyAny>,
+        capacity: usize,
+        max_content_length: u64,
+        eviction_interval: u64,
+        ttl: u64,
+    ) -> PyResult<Py<Self>> {
+        let base: String = homeserver
+            .getattr("config")?
+            .getattr("server")?
+            .getattr("public_baseurl")?
+            .extract()?;
+        let base = Uri::try_from(format!("{base}_synapse/client/rendezvous"))
+            .map_err(|_| PyValueError::new_err("Invalid base URI"))?;
+
+        let clock = homeserver.call_method0("get_clock")?.to_object(py);
+
+        // Construct a Python object so that we can get a reference to the
+        // evict method and schedule it to run.
+        let self_ = Py::new(
+            py,
+            Self {
+                base,
+                clock,
+                sessions: BTreeMap::new(),
+                capacity,
+                max_content_length,
+                ttl: Duration::from_millis(ttl),
+            },
+        )?;
+
+        let evict = self_.getattr(py, "_evict")?;
+        homeserver.call_method0("get_clock")?.call_method(
+            "looping_call",
+            (evict, eviction_interval),
+            None,
+        )?;
+
+        Ok(self_)
+    }
+
+    fn _evict(&mut self, py: Python<'_>) -> PyResult<()> {
+        let clock = self.clock.bind(py);
+        let now: u64 = clock.call_method0("time_msec")?.extract()?;
+        let now = SystemTime::UNIX_EPOCH + Duration::from_millis(now);
+        self.evict(now);
+
+        Ok(())
+    }
+
+    fn handle_post(&mut self, py: Python<'_>, twisted_request: &Bound<'_, PyAny>) -> PyResult<()> {
+        let request = http_request_from_twisted(twisted_request)?;
+
+        let content_type = self.check_input_headers(request.headers())?;
+
+        let clock = self.clock.bind(py);
+        let now: u64 = clock.call_method0("time_msec")?.extract()?;
+        let now = SystemTime::UNIX_EPOCH + Duration::from_millis(now);
+
+        // We trigger an immediate eviction if we're at 2x the capacity
+        if self.sessions.len() >= self.capacity * 2 {
+            self.evict(now);
+        }
+
+        // Generate a new ULID for the session from the current time.
+        let id = Ulid::from_datetime(now);
+
+        let uri = format!("{base}/{id}", base = self.base);
+
+        let body = request.into_body();
+
+        let session = Session::new(body, content_type, now, self.ttl);
+
+        let response = serde_json::json!({
+            "url": uri,
+        })
+        .to_string();
+
+        let mut response = Response::new(response.as_bytes());
+        *response.status_mut() = StatusCode::CREATED;
+        response.headers_mut().typed_insert(ContentType::json());
+        prepare_headers(response.headers_mut(), &session);
+        http_response_to_twisted(twisted_request, response)?;
+
+        self.sessions.insert(id, session);
+
+        Ok(())
+    }
+
+    fn handle_get(
+        &mut self,
+        py: Python<'_>,
+        twisted_request: &Bound<'_, PyAny>,
+        id: &str,
+    ) -> PyResult<()> {
+        let request = http_request_from_twisted(twisted_request)?;
+
+        let if_none_match: Option<IfNoneMatch> = request.headers().typed_get_optional()?;
+
+        let now: u64 = self.clock.call_method0(py, "time_msec")?.extract(py)?;
+        let now = SystemTime::UNIX_EPOCH + Duration::from_millis(now);
+
+        let id: Ulid = id.parse().map_err(|_| NotFoundError::new())?;
+        let session = self
+            .sessions
+            .get(&id)
+            .filter(|s| !s.expired(now))
+            .ok_or_else(NotFoundError::new)?;
+
+        if let Some(if_none_match) = if_none_match {
+            if !if_none_match.precondition_passes(&session.etag()) {
+                let mut response = Response::new(Bytes::new());
+                *response.status_mut() = StatusCode::NOT_MODIFIED;
+                prepare_headers(response.headers_mut(), session);
+                http_response_to_twisted(twisted_request, response)?;
+                return Ok(());
+            }
+        }
+
+        let mut response = Response::new(session.data());
+        *response.status_mut() = StatusCode::OK;
+        let headers = response.headers_mut();
+        prepare_headers(headers, session);
+        headers.typed_insert(session.content_type());
+        headers.typed_insert(session.content_length());
+        http_response_to_twisted(twisted_request, response)?;
+
+        Ok(())
+    }
+
+    fn handle_put(
+        &mut self,
+        py: Python<'_>,
+        twisted_request: &Bound<'_, PyAny>,
+        id: &str,
+    ) -> PyResult<()> {
+        let request = http_request_from_twisted(twisted_request)?;
+
+        let content_type = self.check_input_headers(request.headers())?;
+
+        let if_match: IfMatch = request.headers().typed_get_required()?;
+
+        let data = request.into_body();
+
+        let now: u64 = self.clock.call_method0(py, "time_msec")?.extract(py)?;
+        let now = SystemTime::UNIX_EPOCH + Duration::from_millis(now);
+
+        let id: Ulid = id.parse().map_err(|_| NotFoundError::new())?;
+        let session = self
+            .sessions
+            .get_mut(&id)
+            .filter(|s| !s.expired(now))
+            .ok_or_else(NotFoundError::new)?;
+
+        if !if_match.precondition_passes(&session.etag()) {
+            let mut headers = HeaderMap::new();
+            prepare_headers(&mut headers, session);
+
+            let mut additional_fields = HashMap::with_capacity(1);
+            additional_fields.insert(
+                String::from("org.matrix.msc4108.errcode"),
+                String::from("M_CONCURRENT_WRITE"),
+            );
+
+            return Err(SynapseError::new(
+                StatusCode::PRECONDITION_FAILED,
+                "ETag does not match".to_owned(),
+                "M_UNKNOWN", // Would be M_CONCURRENT_WRITE
+                Some(additional_fields),
+                Some(headers),
+            ));
+        }
+
+        session.update(data, content_type, now);
+
+        let mut response = Response::new(Bytes::new());
+        *response.status_mut() = StatusCode::ACCEPTED;
+        prepare_headers(response.headers_mut(), session);
+        http_response_to_twisted(twisted_request, response)?;
+
+        Ok(())
+    }
+
+    fn handle_delete(&mut self, twisted_request: &Bound<'_, PyAny>, id: &str) -> PyResult<()> {
+        let _request = http_request_from_twisted(twisted_request)?;
+
+        let id: Ulid = id.parse().map_err(|_| NotFoundError::new())?;
+        let _session = self.sessions.remove(&id).ok_or_else(NotFoundError::new)?;
+
+        let mut response = Response::new(Bytes::new());
+        *response.status_mut() = StatusCode::NO_CONTENT;
+        response
+            .headers_mut()
+            .typed_insert(AccessControlAllowOrigin::ANY);
+        http_response_to_twisted(twisted_request, response)?;
+
+        Ok(())
+    }
+}
+
+pub fn register_module(py: Python<'_>, m: &Bound<'_, PyModule>) -> PyResult<()> {
+    let child_module = PyModule::new_bound(py, "rendezvous")?;
+
+    child_module.add_class::<RendezvousHandler>()?;
+
+    m.add_submodule(&child_module)?;
+
+    // We need to manually add the module to sys.modules to make `from
+    // synapse.synapse_rust import rendezvous` work.
+    py.import_bound("sys")?
+        .getattr("modules")?
+        .set_item("synapse.synapse_rust.rendezvous", child_module)?;
+
+    Ok(())
+}

rust/src/rendezvous/session.rs

@@ -0,0 +1,91 @@
+/*
+ * This file is licensed under the Affero General Public License (AGPL) version 3.
+ *
+ * Copyright (C) 2024 New Vector, Ltd
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * See the GNU Affero General Public License for more details:
+ * <https://www.gnu.org/licenses/agpl-3.0.html>.
+ */
+
+use std::time::{Duration, SystemTime};
+
+use base64::{engine::general_purpose::URL_SAFE_NO_PAD, Engine as _};
+use bytes::Bytes;
+use headers::{ContentLength, ContentType, ETag, Expires, LastModified};
+use mime::Mime;
+use sha2::{Digest, Sha256};
+
+/// A single session, containing data, metadata, and expiry information.
+pub struct Session {
+    hash: [u8; 32],
+    data: Bytes,
+    content_type: Mime,
+    last_modified: SystemTime,
+    expires: SystemTime,
+}
+
+impl Session {
+    /// Create a new session with the given data, content type, and time-to-live.
+    pub fn new(data: Bytes, content_type: Mime, now: SystemTime, ttl: Duration) -> Self {
+        let hash = Sha256::digest(&data).into();
+        Self {
+            hash,
+            data,
+            content_type,
+            expires: now + ttl,
+            last_modified: now,
+        }
+    }
+
+    /// Returns true if the session has expired at the given time.
+    pub fn expired(&self, now: SystemTime) -> bool {
+        self.expires <= now
+    }
+
+    /// Update the session with new data, content type, and last modified time.
+    pub fn update(&mut self, data: Bytes, content_type: Mime, now: SystemTime) {
+        self.hash = Sha256::digest(&data).into();
+        self.data = data;
+        self.content_type = content_type;
+        self.last_modified = now;
+    }
+
+    /// Returns the Content-Type header of the session.
+    pub fn content_type(&self) -> ContentType {
+        self.content_type.clone().into()
+    }
+
+    /// Returns the Content-Length header of the session.
+    pub fn content_length(&self) -> ContentLength {
+        ContentLength(self.data.len() as _)
+    }
+
+    /// Returns the ETag header of the session.
+    pub fn etag(&self) -> ETag {
+        let encoded = URL_SAFE_NO_PAD.encode(self.hash);
+        // SAFETY: Base64 encoding is URL-safe, so ETag-safe
+        format!("\"{encoded}\"")
+            .parse()
+            .expect("base64-encoded hash should be URL-safe")
+    }
+
+    /// Returns the Last-Modified header of the session.
+    pub fn last_modified(&self) -> LastModified {
+        self.last_modified.into()
+    }
+
+    /// Returns the Expires header of the session.
+    pub fn expires(&self) -> Expires {
+        self.expires.into()
+    }
+
+    /// Returns the current data stored in the session.
+    pub fn data(&self) -> Bytes {
+        self.data.clone()
+    }
+}

scripts-dev/complement.sh

@@ -214,7 +214,17 @@ fi
 
 extra_test_args=()
 
-test_packages="./tests/csapi ./tests ./tests/msc3874 ./tests/msc3890 ./tests/msc3391 ./tests/msc3930 ./tests/msc3902 ./tests/msc3967"
+test_packages=(
+    ./tests/csapi
+    ./tests
+    ./tests/msc3874
+    ./tests/msc3890
+    ./tests/msc3391
+    ./tests/msc3930
+    ./tests/msc3902
+    ./tests/msc3967
+    ./tests/msc4115
+)
 
 # Enable dirty runs, so tests will reuse the same container where possible.
 # This significantly speeds up tests, but increases the possibility of test pollution.
@@ -278,7 +288,7 @@ fi
 export PASS_SYNAPSE_LOG_TESTING=1
 
 # Run the tests!
-echo "Images built; running complement with ${extra_test_args[@]} $@ $test_packages"
+echo "Images built; running complement with ${extra_test_args[@]} $@ ${test_packages[@]}"
 cd "$COMPLEMENT_DIR"
 
-go test -v -tags "synapse_blacklist" -count=1 "${extra_test_args[@]}" "$@" $test_packages
+go test -v -tags "synapse_blacklist" -count=1 "${extra_test_args[@]}" "$@" "${test_packages[@]}"

scripts-dev/lint.sh

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

synapse/_scripts/synapse_port_db.py

@@ -127,7 +127,7 @@ BOOLEAN_COLUMNS = {
     "redactions": ["have_censored"],
     "room_stats_state": ["is_federatable"],
     "rooms": ["is_public", "has_auth_chain_index"],
-    "users": ["shadow_banned", "approved", "locked"],
+    "users": ["shadow_banned", "approved", "locked", "suspended"],
     "un_partial_stated_event_stream": ["rejection_status_changed"],
     "users_who_share_rooms": ["share_private"],
     "per_user_experimental_features": ["enabled"],

synapse/api/constants.py

@@ -234,6 +234,13 @@ class EventContentFields:
     TO_DEVICE_MSGID: Final = "org.matrix.msgid"
 
 
+class EventUnsignedContentFields:
+    """Fields found inside the 'unsigned' data on events"""
+
+    # Requesting user's membership, per MSC4115
+    MSC4115_MEMBERSHIP: Final = "io.element.msc4115.membership"
+
+
 class RoomTypes:
     """Understood values of the room_type field of m.room.create events."""
 

synapse/config/emailconfig.py

@@ -52,6 +52,7 @@ DEFAULT_SUBJECTS = {
     "invite_from_person_to_space": "[%(app)s] %(person)s has invited you to join the %(space)s space on %(app)s...",
     "password_reset": "[%(server_name)s] Password reset",
     "email_validation": "[%(server_name)s] Validate your email",
+    "email_already_in_use": "[%(server_name)s] Email already in use",
 }
 
 LEGACY_TEMPLATE_DIR_WARNING = """
@@ -76,6 +77,7 @@ class EmailSubjectConfig:
     invite_from_person_to_space: str
     password_reset: str
     email_validation: str
+    email_already_in_use: str
 
 
 class EmailConfig(Config):
@@ -180,6 +182,12 @@ class EmailConfig(Config):
             registration_template_text = email_config.get(
                 "registration_template_text", "registration.txt"
             )
+            already_in_use_template_html = email_config.get(
+                "already_in_use_template_html", "already_in_use.html"
+            )
+            already_in_use_template_text = email_config.get(
+                "already_in_use_template_html", "already_in_use.txt"
+            )
             add_threepid_template_html = email_config.get(
                 "add_threepid_template_html", "add_threepid.html"
             )
@@ -215,6 +223,8 @@ class EmailConfig(Config):
                 self.email_password_reset_template_text,
                 self.email_registration_template_html,
                 self.email_registration_template_text,
+                self.email_already_in_use_template_html,
+                self.email_already_in_use_template_text,
                 self.email_add_threepid_template_html,
                 self.email_add_threepid_template_text,
                 self.email_password_reset_template_confirmation_html,
@@ -230,6 +240,8 @@ class EmailConfig(Config):
                     password_reset_template_text,
                     registration_template_html,
                     registration_template_text,
+                    already_in_use_template_html,
+                    already_in_use_template_text,
                     add_threepid_template_html,
                     add_threepid_template_text,
                     "password_reset_confirmation.html",

synapse/config/experimental.py

@@ -413,12 +413,26 @@ class ExperimentalConfig(Config):
         )
 
         # MSC4108: Mechanism to allow OIDC sign in and E2EE set up via QR code
+        self.msc4108_enabled = experimental.get("msc4108_enabled", False)
+
         self.msc4108_delegation_endpoint: Optional[str] = experimental.get(
             "msc4108_delegation_endpoint", None
         )
 
-        if self.msc4108_delegation_endpoint is not None and not self.msc3861.enabled:
+        if (
+            self.msc4108_enabled or self.msc4108_delegation_endpoint is not None
+        ) and not self.msc3861.enabled:
             raise ConfigError(
                 "MSC4108 requires MSC3861 to be enabled",
                 ("experimental", "msc4108_delegation_endpoint"),
             )
+
+        if self.msc4108_delegation_endpoint is not None and self.msc4108_enabled:
+            raise ConfigError(
+                "You cannot have MSC4108 both enabled and delegated at the same time",
+                ("experimental", "msc4108_delegation_endpoint"),
+            )
+
+        self.msc4115_membership_on_events = experimental.get(
+            "msc4115_membership_on_events", False
+        )

synapse/events/utils.py

@@ -49,7 +49,7 @@ from synapse.api.errors import Codes, SynapseError
 from synapse.api.room_versions import RoomVersion
 from synapse.types import JsonDict, Requester
 
-from . import EventBase
+from . import EventBase, make_event_from_dict
 
 if TYPE_CHECKING:
     from synapse.handlers.relations import BundledAggregations
@@ -82,17 +82,14 @@ def prune_event(event: EventBase) -> EventBase:
     """
     pruned_event_dict = prune_event_dict(event.room_version, event.get_dict())
 
-    from . import make_event_from_dict
-
     pruned_event = make_event_from_dict(
         pruned_event_dict, event.room_version, event.internal_metadata.get_dict()
     )
 
-    # copy the internal fields
+    # Copy the bits of `internal_metadata` that aren't returned by `get_dict`
     pruned_event.internal_metadata.stream_ordering = (
         event.internal_metadata.stream_ordering
     )
-
     pruned_event.internal_metadata.outlier = event.internal_metadata.outlier
 
     # Mark the event as redacted
@@ -101,6 +98,29 @@ def prune_event(event: EventBase) -> EventBase:
     return pruned_event
 
 
+def clone_event(event: EventBase) -> EventBase:
+    """Take a copy of the event.
+
+    This is mostly useful because it does a *shallow* copy of the `unsigned` data,
+    which means it can then be updated without corrupting the in-memory cache. Note that
+    other properties of the event, such as `content`, are *not* (currently) copied here.
+    """
+    # XXX: We rely on at least one of `event.get_dict()` and `make_event_from_dict()`
+    #   making a copy of `unsigned`. Currently, both do, though I don't really know why.
+    #   Still, as long as they do, there's not much point doing yet another copy here.
+    new_event = make_event_from_dict(
+        event.get_dict(), event.room_version, event.internal_metadata.get_dict()
+    )
+
+    # Copy the bits of `internal_metadata` that aren't returned by `get_dict`.
+    new_event.internal_metadata.stream_ordering = (
+        event.internal_metadata.stream_ordering
+    )
+    new_event.internal_metadata.outlier = event.internal_metadata.outlier
+
+    return new_event
+
+
 def prune_event_dict(room_version: RoomVersion, event_dict: JsonDict) -> JsonDict:
     """Redacts the event_dict in the same way as `prune_event`, except it
     operates on dicts rather than event objects

synapse/federation/federation_server.py

@@ -546,7 +546,25 @@ class FederationServer(FederationBase):
                 edu_type=edu_dict["edu_type"],
                 content=edu_dict["content"],
             )
-            await self.registry.on_edu(edu.edu_type, origin, edu.content)
+            try:
+                await self.registry.on_edu(edu.edu_type, origin, edu.content)
+            except Exception:
+                # If there was an error handling the EDU, we must reject the
+                # transaction.
+                #
+                # Some EDU types (notably, to-device messages) are, despite their name,
+                # expected to be reliable; if we weren't able to do something with it,
+                # we have to tell the sender that, and the only way the protocol gives
+                # us to do so is by sending an HTTP error back on the transaction.
+                #
+                # We log the exception now, and then raise a new SynapseError to cause
+                # the transaction to be failed.
+                logger.exception("Error handling EDU of type %s", edu.edu_type)
+                raise SynapseError(500, f"Error handing EDU of type {edu.edu_type}")
+
+                # TODO: if the first EDU fails, we should probably abort the whole
+                #   thing rather than carrying on with the rest of them. That would
+                #   probably be best done inside `concurrently_execute`.
 
         await concurrently_execute(
             _process_edu,
@@ -1414,12 +1432,7 @@ class FederationHandlerRegistry:
         handler = self.edu_handlers.get(edu_type)
         if handler:
             with start_active_span_from_edu(content, "handle_edu"):
-                try:
-                    await handler(origin, content)
-                except SynapseError as e:
-                    logger.info("Failed to handle edu %r: %r", edu_type, e)
-                except Exception:
-                    logger.exception("Failed to handle edu %r", edu_type)
+                await handler(origin, content)
             return
 
         # Check if we can route it somewhere else that isn't us
@@ -1428,17 +1441,12 @@ class FederationHandlerRegistry:
             # Pick an instance randomly so that we don't overload one.
             route_to = random.choice(instances)
 
-            try:
-                await self._send_edu(
-                    instance_name=route_to,
-                    edu_type=edu_type,
-                    origin=origin,
-                    content=content,
-                )
-            except SynapseError as e:
-                logger.info("Failed to handle edu %r: %r", edu_type, e)
-            except Exception:
-                logger.exception("Failed to handle edu %r", edu_type)
+            await self._send_edu(
+                instance_name=route_to,
+                edu_type=edu_type,
+                origin=origin,
+                content=content,
+            )
             return
 
         # Oh well, let's just log and move on.

synapse/federation/transport/server/_base.py

@@ -180,7 +180,11 @@ def _parse_auth_header(header_bytes: bytes) -> Tuple[str, str, str, Optional[str
     """
     try:
         header_str = header_bytes.decode("utf-8")
-        params = re.split(" +", header_str)[1].split(",")
+        space_or_tab = "[ \t]"
+        params = re.split(
+            rf"{space_or_tab}*,{space_or_tab}*",
+            re.split(r"^X-Matrix +", header_str, maxsplit=1)[1],
+        )
         param_dict: Dict[str, str] = {
             k.lower(): v for k, v in [param.split("=", maxsplit=1) for param in params]
         }

synapse/handlers/admin.py

@@ -42,6 +42,7 @@ class AdminHandler:
         self._device_handler = hs.get_device_handler()
         self._storage_controllers = hs.get_storage_controllers()
         self._state_storage_controller = self._storage_controllers.state
+        self._hs_config = hs.config
         self._msc3866_enabled = hs.config.experimental.msc3866.enabled
 
     async def get_whois(self, user: UserID) -> JsonMapping:
@@ -217,7 +218,10 @@ class AdminHandler:
                 )
 
                 events = await filter_events_for_client(
-                    self._storage_controllers, user_id, events
+                    self._storage_controllers,
+                    user_id,
+                    events,
+                    msc4115_membership_on_events=self._hs_config.experimental.msc4115_membership_on_events,
                 )
 
                 writer.write_events(room_id, events)

synapse/handlers/deactivate_account.py

@@ -261,11 +261,22 @@ class DeactivateAccountHandler:
         user = UserID.from_string(user_id)
 
         rooms_for_user = await self.store.get_rooms_for_user(user_id)
+        requester = create_requester(user, authenticated_entity=self._server_name)
+        should_erase = await self.store.is_user_erased(user_id)
+
         for room_id in rooms_for_user:
             logger.info("User parter parting %r from %r", user_id, room_id)
             try:
+                # Before parting the user, redact all membership events if requested
+                if should_erase:
+                    event_ids = await self.store.get_membership_event_ids_for_user(
+                        user_id, room_id
+                    )
+                    for event_id in event_ids:
+                        await self.store.expire_event(event_id)
+
                 await self._room_member_handler.update_membership(
-                    create_requester(user, authenticated_entity=self._server_name),
+                    requester,
                     user,
                     room_id,
                     "leave",

synapse/handlers/devicemessage.py

@@ -104,6 +104,9 @@ class DeviceMessageHandler:
         """
         Handle receiving to-device messages from remote homeservers.
 
+        Note that any errors thrown from this method will cause the federation /send
+        request to receive an error response.
+
         Args:
             origin: The remote homeserver.
             content: The JSON dictionary containing the to-device messages.

synapse/handlers/events.py

@@ -148,6 +148,7 @@ class EventHandler:
     def __init__(self, hs: "HomeServer"):
         self.store = hs.get_datastores().main
         self._storage_controllers = hs.get_storage_controllers()
+        self._config = hs.config
 
     async def get_event(
         self,
@@ -189,7 +190,11 @@ class EventHandler:
         is_peeking = not is_user_in_room
 
         filtered = await filter_events_for_client(
-            self._storage_controllers, user.to_string(), [event], is_peeking=is_peeking
+            self._storage_controllers,
+            user.to_string(),
+            [event],
+            is_peeking=is_peeking,
+            msc4115_membership_on_events=self._config.experimental.msc4115_membership_on_events,
         )
 
         if not filtered:

synapse/handlers/initial_sync.py

@@ -221,7 +221,10 @@ class InitialSyncHandler:
                 ).addErrback(unwrapFirstError)
 
                 messages = await filter_events_for_client(
-                    self._storage_controllers, user_id, messages
+                    self._storage_controllers,
+                    user_id,
+                    messages,
+                    msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
                 )
 
                 start_token = now_token.copy_and_replace(StreamKeyType.ROOM, token)
@@ -380,6 +383,7 @@ class InitialSyncHandler:
             requester.user.to_string(),
             messages,
             is_peeking=is_peeking,
+            msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
         )
 
         start_token = StreamToken.START.copy_and_replace(StreamKeyType.ROOM, token)
@@ -494,6 +498,7 @@ class InitialSyncHandler:
             requester.user.to_string(),
             messages,
             is_peeking=is_peeking,
+            msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
         )
 
         start_token = now_token.copy_and_replace(StreamKeyType.ROOM, token)

synapse/handlers/pagination.py

@@ -623,6 +623,7 @@ class PaginationHandler:
                 user_id,
                 events,
                 is_peeking=(member_event_id is None),
+                msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
             )
 
         # if after the filter applied there are no more events

synapse/handlers/relations.py

@@ -95,6 +95,7 @@ class RelationsHandler:
         self._event_handler = hs.get_event_handler()
         self._event_serializer = hs.get_event_client_serializer()
         self._event_creation_handler = hs.get_event_creation_handler()
+        self._config = hs.config
 
     async def get_relations(
         self,
@@ -163,6 +164,7 @@ class RelationsHandler:
             user_id,
             events,
             is_peeking=(member_event_id is None),
+            msc4115_membership_on_events=self._config.experimental.msc4115_membership_on_events,
         )
 
         # The relations returned for the requested event do include their
@@ -608,6 +610,7 @@ class RelationsHandler:
             user_id,
             events,
             is_peeking=(member_event_id is None),
+            msc4115_membership_on_events=self._config.experimental.msc4115_membership_on_events,
         )
 
         aggregations = await self.get_bundled_aggregations(

synapse/handlers/room.py

@@ -1476,6 +1476,7 @@ class RoomContextHandler:
                 user.to_string(),
                 events,
                 is_peeking=is_peeking,
+                msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
             )
 
         event = await self.store.get_event(

synapse/handlers/room_member.py

@@ -752,6 +752,36 @@ class RoomMemberHandler(metaclass=abc.ABCMeta):
             and requester.user.to_string() == self._server_notices_mxid
         )
 
+        requester_suspended = await self.store.get_user_suspended_status(
+            requester.user.to_string()
+        )
+        if action == Membership.INVITE and requester_suspended:
+            raise SynapseError(
+                403,
+                "Sending invites while account is suspended is not allowed.",
+                Codes.USER_ACCOUNT_SUSPENDED,
+            )
+
+        if target.to_string() != requester.user.to_string():
+            target_suspended = await self.store.get_user_suspended_status(
+                target.to_string()
+            )
+        else:
+            target_suspended = requester_suspended
+
+        if action == Membership.JOIN and target_suspended:
+            raise SynapseError(
+                403,
+                "Joining rooms while account is suspended is not allowed.",
+                Codes.USER_ACCOUNT_SUSPENDED,
+            )
+        if action == Membership.KNOCK and target_suspended:
+            raise SynapseError(
+                403,
+                "Knocking on rooms while account is suspended is not allowed.",
+                Codes.USER_ACCOUNT_SUSPENDED,
+            )
+
         if (
             not self.allow_per_room_profiles and not is_requester_server_notices_user
         ) or requester.shadow_banned:

synapse/handlers/search.py

@@ -480,7 +480,10 @@ class SearchHandler:
         filtered_events = await search_filter.filter([r["event"] for r in results])
 
         events = await filter_events_for_client(
-            self._storage_controllers, user.to_string(), filtered_events
+            self._storage_controllers,
+            user.to_string(),
+            filtered_events,
+            msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
         )
 
         events.sort(key=lambda e: -rank_map[e.event_id])
@@ -579,7 +582,10 @@ class SearchHandler:
             filtered_events = await search_filter.filter([r["event"] for r in results])
 
             events = await filter_events_for_client(
-                self._storage_controllers, user.to_string(), filtered_events
+                self._storage_controllers,
+                user.to_string(),
+                filtered_events,
+                msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
             )
 
             room_events.extend(events)
@@ -664,11 +670,17 @@ class SearchHandler:
             )
 
             events_before = await filter_events_for_client(
-                self._storage_controllers, user.to_string(), res.events_before
+                self._storage_controllers,
+                user.to_string(),
+                res.events_before,
+                msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
             )
 
             events_after = await filter_events_for_client(
-                self._storage_controllers, user.to_string(), res.events_after
+                self._storage_controllers,
+                user.to_string(),
+                res.events_after,
+                msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
             )
 
             context: JsonDict = {

synapse/handlers/sso.py

@@ -169,6 +169,7 @@ class UsernameMappingSession:
     # attributes returned by the ID mapper
     display_name: Optional[str]
     emails: StrCollection
+    avatar_url: Optional[str]
 
     # An optional dictionary of extra attributes to be provided to the client in the
     # login response.
@@ -183,6 +184,7 @@ class UsernameMappingSession:
     # choices made by the user
     chosen_localpart: Optional[str] = None
     use_display_name: bool = True
+    use_avatar: bool = True
     emails_to_use: StrCollection = ()
     terms_accepted_version: Optional[str] = None
 
@@ -660,6 +662,9 @@ class SsoHandler:
             remote_user_id=remote_user_id,
             display_name=attributes.display_name,
             emails=attributes.emails,
+            avatar_url=attributes.picture,
+            # Default to using all mapped emails. Will be overwritten in handle_submit_username_request.
+            emails_to_use=attributes.emails,
             client_redirect_url=client_redirect_url,
             expiry_time_ms=now + self._MAPPING_SESSION_VALIDITY_PERIOD_MS,
             extra_login_attributes=extra_login_attributes,
@@ -966,6 +971,7 @@ class SsoHandler:
         session_id: str,
         localpart: str,
         use_display_name: bool,
+        use_avatar: bool,
         emails_to_use: Iterable[str],
     ) -> None:
         """Handle a request to the username-picker 'submit' endpoint
@@ -988,6 +994,7 @@ class SsoHandler:
         # update the session with the user's choices
         session.chosen_localpart = localpart
         session.use_display_name = use_display_name
+        session.use_avatar = use_avatar
 
         emails_from_idp = set(session.emails)
         filtered_emails: Set[str] = set()
@@ -1068,6 +1075,9 @@ class SsoHandler:
         if session.use_display_name:
             attributes.display_name = session.display_name
 
+        if session.use_avatar:
+            attributes.picture = session.avatar_url
+
         # the following will raise a 400 error if the username has been taken in the
         # meantime.
         user_id = await self._register_mapped_user(

synapse/handlers/sync.py

@@ -596,6 +596,7 @@ class SyncHandler:
                     sync_config.user.to_string(),
                     recents,
                     always_include_ids=current_state_ids,
+                    msc4115_membership_on_events=self.hs_config.experimental.msc4115_membership_on_events,
                 )
                 log_kv({"recents_after_visibility_filtering": len(recents)})
             else:
@@ -681,6 +682,7 @@ class SyncHandler:
                     sync_config.user.to_string(),
                     loaded_recents,
                     always_include_ids=current_state_ids,
+                    msc4115_membership_on_events=self.hs_config.experimental.msc4115_membership_on_events,
                 )
 
                 loaded_recents = []

synapse/http/server.py

@@ -909,8 +909,9 @@ def set_cors_headers(request: "SynapseRequest") -> None:
     request.setHeader(
         b"Access-Control-Allow-Methods", b"GET, HEAD, POST, PUT, DELETE, OPTIONS"
     )
-    if request.path is not None and request.path.startswith(
-        b"/_matrix/client/unstable/org.matrix.msc4108/rendezvous"
+    if request.path is not None and (
+        request.path == b"/_matrix/client/unstable/org.matrix.msc4108/rendezvous"
+        or request.path.startswith(b"/_synapse/client/rendezvous")
     ):
         request.setHeader(
             b"Access-Control-Allow-Headers",

synapse/notifier.py

@@ -721,6 +721,7 @@ class Notifier:
                         user.to_string(),
                         new_events,
                         is_peeking=is_peeking,
+                        msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
                     )
                 elif keyname == StreamKeyType.PRESENCE:
                     now = self.clock.time_msec()

synapse/push/mailer.py

@@ -205,6 +205,22 @@ class Mailer:
             template_vars,
         )
 
+    emails_sent_counter.labels("already_in_use")
+
+    async def send_already_in_use_mail(self, email_address: str) -> None:
+        """Send an email if the address is already bound to an user account
+
+        Args:
+            email_address: Email address we're sending to the "already in use" mail
+        """
+
+        await self.send_email(
+            email_address,
+            self.email_subjects.email_already_in_use
+            % {"server_name": self.hs.config.server.server_name, "app": self.app_name},
+            {},
+        )
+
     emails_sent_counter.labels("add_threepid")
 
     async def send_add_threepid_mail(
@@ -513,7 +529,10 @@ class Mailer:
         }
 
         the_events = await filter_events_for_client(
-            self._storage_controllers, user_id, results.events_before
+            self._storage_controllers,
+            user_id,
+            results.events_before,
+            msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
         )
         the_events.append(notif_event)
 

synapse/res/templates/already_in_use.html

@@ -0,0 +1,12 @@
+{% extends "_base.html" %}
+{% block title %}Email already in use{% endblock %}
+
+{% block body %}
+<p>You have asked us to register this email with a new Matrix account, but this email is already registered with an existing account.</p>
+
+<p>Please reset your password if needed.</p>
+
+<p>If this was not you, you can safely disregard this email.</p>
+
+<p>Thank you.</p>
+{% endblock %}

synapse/res/templates/already_in_use.txt

@@ -0,0 +1,10 @@
+Hello there,
+
+You have asked us to register this email with a new Matrix account,
+but this email is already registered with an existing account.
+
+Please reset your password if needed.
+
+If this was not you, you can safely disregard this email.
+
+Thank you.

synapse/rest/client/keys.py

@@ -393,17 +393,20 @@ class SigningKeyUploadServlet(RestServlet):
         # time. Because there is no UIA in MSC3861, for now we throw an error if the
         # user tries to reset the device signing key when MSC3861 is enabled, but allow
         # first-time setup.
-        #
-        # XXX: We now have a get-out clause by which MAS can temporarily mark the master
-        # key as replaceable. It should do its own equivalent of user interactive auth
-        # before doing so.
         if self.hs.config.experimental.msc3861.enabled:
             # The auth service has to explicitly mark the master key as replaceable
             # without UIA to reset the device signing key with MSC3861.
             if is_cross_signing_setup and not master_key_updatable_without_uia:
+                config = self.hs.config.experimental.msc3861
+                if config.account_management_url is not None:
+                    url = f"{config.account_management_url}?action=org.matrix.cross_signing_reset"
+                else:
+                    url = config.issuer
+
                 raise SynapseError(
                     HTTPStatus.NOT_IMPLEMENTED,
-                    "Resetting cross signing keys is not yet supported with MSC3861",
+                    "To reset your end-to-end encryption cross-signing identity, "
+                    f"you first need to approve it at {url} and then try again.",
                     Codes.UNRECOGNIZED,
                 )
             # But first-time setup is fine

synapse/rest/client/register.py

@@ -86,12 +86,18 @@ class EmailRegisterRequestTokenRestServlet(RestServlet):
         self.config = hs.config
 
         if self.hs.config.email.can_verify_email:
-            self.mailer = Mailer(
+            self.registration_mailer = Mailer(
                 hs=self.hs,
                 app_name=self.config.email.email_app_name,
                 template_html=self.config.email.email_registration_template_html,
                 template_text=self.config.email.email_registration_template_text,
             )
+            self.already_in_use_mailer = Mailer(
+                hs=self.hs,
+                app_name=self.config.email.email_app_name,
+                template_html=self.config.email.email_already_in_use_template_html,
+                template_text=self.config.email.email_already_in_use_template_text,
+            )
 
     async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
         if not self.hs.config.email.can_verify_email:
@@ -139,8 +145,10 @@ class EmailRegisterRequestTokenRestServlet(RestServlet):
             if self.hs.config.server.request_token_inhibit_3pid_errors:
                 # Make the client think the operation succeeded. See the rationale in the
                 # comments for request_token_inhibit_3pid_errors.
+                # Still send an email to warn the user that an account already exists.
                 # Also wait for some random amount of time between 100ms and 1s to make it
                 # look like we did something.
+                await self.already_in_use_mailer.send_already_in_use_mail(email)
                 await self.hs.get_clock().sleep(random.randint(1, 10) / 10)
                 return 200, {"sid": random_string(16)}
 
@@ -151,7 +159,7 @@ class EmailRegisterRequestTokenRestServlet(RestServlet):
             email,
             client_secret,
             send_attempt,
-            self.mailer.send_registration_mail,
+            self.registration_mailer.send_registration_mail,
             next_link,
         )
 

synapse/rest/client/rendezvous.py

@@ -34,6 +34,9 @@ if TYPE_CHECKING:
 logger = logging.getLogger(__name__)
 
 
+# n.b [MSC3886](https://github.com/matrix-org/matrix-spec-proposals/pull/3886) has now been closed.
+# However, we want to keep this implementation around for some time.
+# TODO: define an end-of-life date for this implementation.
 class MSC3886RendezvousServlet(RestServlet):
     """
     This is a placeholder implementation of [MSC3886](https://github.com/matrix-org/matrix-spec-proposals/pull/3886)
@@ -97,9 +100,25 @@ class MSC4108DelegationRendezvousServlet(RestServlet):
         )
 
 
+class MSC4108RendezvousServlet(RestServlet):
+    PATTERNS = client_patterns(
+        "/org.matrix.msc4108/rendezvous$", releases=[], v1=False, unstable=True
+    )
+
+    def __init__(self, hs: "HomeServer") -> None:
+        super().__init__()
+        self._handler = hs.get_rendezvous_handler()
+
+    def on_POST(self, request: SynapseRequest) -> None:
+        self._handler.handle_post(request)
+
+
 def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
     if hs.config.experimental.msc3886_endpoint is not None:
         MSC3886RendezvousServlet(hs).register(http_server)
 
+    if hs.config.experimental.msc4108_enabled:
+        MSC4108RendezvousServlet(hs).register(http_server)
+
     if hs.config.experimental.msc4108_delegation_endpoint is not None:
         MSC4108DelegationRendezvousServlet(hs).register(http_server)

synapse/rest/client/room.py

@@ -1442,10 +1442,16 @@ class RoomHierarchyRestServlet(RestServlet):
 
 class RoomSummaryRestServlet(ResolveRoomIdMixin, RestServlet):
     PATTERNS = (
+        # deprecated endpoint, to be removed
         re.compile(
             "^/_matrix/client/unstable/im.nheko.summary"
             "/rooms/(?P<room_identifier>[^/]*)/summary$"
         ),
+        # recommended endpoint
+        re.compile(
+            "^/_matrix/client/unstable/im.nheko.summary"
+            "/summary/(?P<room_identifier>[^/]*)$"
+        ),
     )
     CATEGORY = "Client API requests"
 

synapse/rest/client/versions.py

@@ -89,6 +89,7 @@ class VersionsRestServlet(RestServlet):
                     "v1.7",
                     "v1.8",
                     "v1.9",
+                    "v1.10",
                 ],
                 # as per MSC1497:
                 "unstable_features": {
@@ -141,8 +142,13 @@ class VersionsRestServlet(RestServlet):
                     # Allows clients to handle push for encrypted events.
                     "org.matrix.msc4028": self.config.experimental.msc4028_push_encrypted_events,
                     # MSC4108: Mechanism to allow OIDC sign in and E2EE set up via QR code
-                    "org.matrix.msc4108": self.config.experimental.msc4108_delegation_endpoint
-                    is not None,
+                    "org.matrix.msc4108": (
+                        self.config.experimental.msc4108_enabled
+                        or (
+                            self.config.experimental.msc4108_delegation_endpoint
+                            is not None
+                        )
+                    ),
                 },
             },
         )

synapse/rest/synapse/client/__init__.py

@@ -26,6 +26,7 @@ from twisted.web.resource import Resource
 from synapse.rest.synapse.client.new_user_consent import NewUserConsentResource
 from synapse.rest.synapse.client.pick_idp import PickIdpResource
 from synapse.rest.synapse.client.pick_username import pick_username_resource
+from synapse.rest.synapse.client.rendezvous import MSC4108RendezvousSessionResource
 from synapse.rest.synapse.client.sso_register import SsoRegisterResource
 from synapse.rest.synapse.client.unsubscribe import UnsubscribeResource
 
@@ -76,6 +77,9 @@ def build_synapse_client_resource_tree(hs: "HomeServer") -> Mapping[str, Resourc
         # To be removed in Synapse v1.32.0.
         resources["/_matrix/saml2"] = res
 
+    if hs.config.experimental.msc4108_enabled:
+        resources["/_synapse/client/rendezvous"] = MSC4108RendezvousSessionResource(hs)
+
     return resources
 
 

synapse/rest/synapse/client/pick_username.py

@@ -113,6 +113,7 @@ class AccountDetailsResource(DirectServeHtmlResource):
                 "display_name": session.display_name,
                 "emails": session.emails,
                 "localpart": localpart,
+                "avatar_url": session.avatar_url,
             },
         }
 
@@ -134,6 +135,7 @@ class AccountDetailsResource(DirectServeHtmlResource):
         try:
             localpart = parse_string(request, "username", required=True)
             use_display_name = parse_boolean(request, "use_display_name", default=False)
+            use_avatar = parse_boolean(request, "use_avatar", default=False)
 
             try:
                 emails_to_use: List[str] = [
@@ -147,5 +149,5 @@ class AccountDetailsResource(DirectServeHtmlResource):
             return
 
         await self._sso_handler.handle_submit_username_request(
-            request, session_id, localpart, use_display_name, emails_to_use
+            request, session_id, localpart, use_display_name, use_avatar, emails_to_use
         )

synapse/rest/synapse/client/rendezvous.py

@@ -0,0 +1,58 @@
+#
+# This file is licensed under the Affero General Public License (AGPL) version 3.
+#
+# Copyright (C) 2024 New Vector, Ltd
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# See the GNU Affero General Public License for more details:
+# <https://www.gnu.org/licenses/agpl-3.0.html>.
+#
+#
+
+import logging
+from typing import TYPE_CHECKING, List
+
+from synapse.api.errors import UnrecognizedRequestError
+from synapse.http.server import DirectServeJsonResource
+from synapse.http.site import SynapseRequest
+
+if TYPE_CHECKING:
+    from synapse.server import HomeServer
+
+logger = logging.getLogger(__name__)
+
+
+class MSC4108RendezvousSessionResource(DirectServeJsonResource):
+    isLeaf = True
+
+    def __init__(self, hs: "HomeServer") -> None:
+        super().__init__()
+        self._handler = hs.get_rendezvous_handler()
+
+    async def _async_render_GET(self, request: SynapseRequest) -> None:
+        postpath: List[bytes] = request.postpath  # type: ignore
+        if len(postpath) != 1:
+            raise UnrecognizedRequestError()
+        session_id = postpath[0].decode("ascii")
+
+        self._handler.handle_get(request, session_id)
+
+    def _async_render_PUT(self, request: SynapseRequest) -> None:
+        postpath: List[bytes] = request.postpath  # type: ignore
+        if len(postpath) != 1:
+            raise UnrecognizedRequestError()
+        session_id = postpath[0].decode("ascii")
+
+        self._handler.handle_put(request, session_id)
+
+    def _async_render_DELETE(self, request: SynapseRequest) -> None:
+        postpath: List[bytes] = request.postpath  # type: ignore
+        if len(postpath) != 1:
+            raise UnrecognizedRequestError()
+        session_id = postpath[0].decode("ascii")
+
+        self._handler.handle_delete(request, session_id)

synapse/server.py

@@ -143,6 +143,7 @@ from synapse.state import StateHandler, StateResolutionHandler
 from synapse.storage import Databases
 from synapse.storage.controllers import StorageControllers
 from synapse.streams.events import EventSources
+from synapse.synapse_rust.rendezvous import RendezvousHandler
 from synapse.types import DomainSpecificString, ISynapseReactor
 from synapse.util import Clock
 from synapse.util.distributor import Distributor
@@ -859,6 +860,10 @@ class HomeServer(metaclass=abc.ABCMeta):
     def get_room_forgetter_handler(self) -> RoomForgetterHandler:
         return RoomForgetterHandler(self)
 
+    @cache_in_self
+    def get_rendezvous_handler(self) -> RendezvousHandler:
+        return RendezvousHandler(self)
+
     @cache_in_self
     def get_outbound_redis_connection(self) -> "ConnectionHandler":
         """

synapse/storage/databases/main/event_federation.py

@@ -21,6 +21,7 @@
 import datetime
 import itertools
 import logging
+import time
 from queue import Empty, PriorityQueue
 from typing import (
     TYPE_CHECKING,
@@ -39,6 +40,7 @@ from typing import (
 
 import attr
 from prometheus_client import Counter, Gauge
+from sortedcontainers import SortedSet
 
 from synapse.api.constants import MAX_DEPTH
 from synapse.api.errors import StoreError
@@ -118,6 +120,11 @@ class BackfillQueueNavigationItem:
     type: str
 
 
+@attr.s(frozen=True, slots=True, auto_attribs=True)
+class _ChainLinksCacheEntry:
+    links: List[Tuple[int, int, int, "_ChainLinksCacheEntry"]] = attr.Factory(list)
+
+
 class _NoChainCoverIndex(Exception):
     def __init__(self, room_id: str):
         super().__init__("Unexpectedly no chain cover for events in %s" % (room_id,))
@@ -138,6 +145,10 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
 
         self.hs = hs
 
+        self._chain_links_cache: LruCache[int, _ChainLinksCacheEntry] = LruCache(
+            max_size=10000, cache_name="chain_links_cache"
+        )
+
         if hs.config.worker.run_background_tasks:
             hs.get_clock().looping_call(
                 self._delete_old_forward_extrem_cache, 60 * 60 * 1000
@@ -283,7 +294,9 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
 
         # A map from chain ID to max sequence number *reachable* from any event ID.
         chains: Dict[int, int] = {}
-        for links in self._get_chain_links(txn, set(event_chains.keys())):
+        for links in self._get_chain_links(
+            txn, event_chains.keys(), self._chain_links_cache
+        ):
             for chain_id in links:
                 if chain_id not in event_chains:
                     continue
@@ -335,7 +348,10 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
 
     @classmethod
     def _get_chain_links(
-        cls, txn: LoggingTransaction, chains_to_fetch: Set[int]
+        cls,
+        txn: LoggingTransaction,
+        chains_to_fetch: Collection[int],
+        cache: Optional[LruCache[int, _ChainLinksCacheEntry]] = None,
     ) -> Generator[Dict[int, List[Tuple[int, int, int]]], None, None]:
         """Fetch all auth chain links from the given set of chains, and all
         links from those chains, recursively.
@@ -347,12 +363,55 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
         of origin sequence number, target chain ID and target sequence number.
         """
 
+        found_cached_chains = set()
+        if cache:
+            entries: Dict[int, _ChainLinksCacheEntry] = {}
+            for chain_id in chains_to_fetch:
+                entry = cache.get(chain_id)
+                if entry:
+                    entries[chain_id] = entry
+
+            cached_links: Dict[int, List[Tuple[int, int, int]]] = {}
+            while entries:
+                origin_chain_id, entry = entries.popitem()
+
+                for (
+                    origin_sequence_number,
+                    target_chain_id,
+                    target_sequence_number,
+                    target_entry,
+                ) in entry.links:
+                    if target_chain_id in found_cached_chains:
+                        continue
+
+                    found_cached_chains.add(target_chain_id)
+
+                    cache.get(chain_id)
+
+                    entries[chain_id] = target_entry
+                    cached_links.setdefault(origin_chain_id, []).append(
+                        (
+                            origin_sequence_number,
+                            target_chain_id,
+                            target_sequence_number,
+                        )
+                    )
+
+            yield cached_links
+
         # This query is structured to first get all chain IDs reachable, and
         # then pull out all links from those chains. This does pull out more
         # rows than is strictly necessary, however there isn't a way of
         # structuring the recursive part of query to pull out the links without
         # also returning large quantities of redundant data (which can make it a
         # lot slower).
+
+        if isinstance(txn.database_engine, PostgresEngine):
+            # JIT and sequential scans sometimes get hit on this code path, which
+            # can make the queries much more expensive
+            txn.execute("SET LOCAL jit = off")
+            txn.execute("SET LOCAL enable_seqscan = off")
+
         sql = """
             WITH RECURSIVE links(chain_id) AS (
                 SELECT
@@ -371,9 +430,22 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
             INNER JOIN event_auth_chain_links ON (chain_id = origin_chain_id)
         """
 
-        while chains_to_fetch:
-            batch2 = tuple(itertools.islice(chains_to_fetch, 1000))
-            chains_to_fetch.difference_update(batch2)
+        # We fetch the links in batches. Separate batches will likely fetch the
+        # same set of links (e.g. they'll always pull in the links to create
+        # event). To try and minimize the amount of redundant links, we query
+        # the chain IDs in reverse order, as there will be a correlation between
+        # the order of chain IDs and links (i.e., higher chain IDs are more
+        # likely to depend on lower chain IDs than vice versa).
+        BATCH_SIZE = 5000
+        chains_to_fetch_sorted = SortedSet(chains_to_fetch)
+        chains_to_fetch_sorted.difference_update(found_cached_chains)
+
+        start_block = time.monotonic()
+
+        while chains_to_fetch_sorted:
+            batch2 = list(chains_to_fetch_sorted.islice(-BATCH_SIZE))
+            chains_to_fetch_sorted.difference_update(batch2)
+
             clause, args = make_in_list_sql_clause(
                 txn.database_engine, "origin_chain_id", batch2
             )
@@ -381,6 +453,8 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
 
             links: Dict[int, List[Tuple[int, int, int]]] = {}
 
+            cache_entries: Dict[int, _ChainLinksCacheEntry] = {}
+
             for (
                 origin_chain_id,
                 origin_sequence_number,
@@ -391,10 +465,33 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
                     (origin_sequence_number, target_chain_id, target_sequence_number)
                 )
 
-            chains_to_fetch.difference_update(links)
+                if cache:
+                    origin_entry = cache_entries.setdefault(
+                        origin_chain_id, _ChainLinksCacheEntry()
+                    )
+                    target_entry = cache_entries.setdefault(
+                        target_chain_id, _ChainLinksCacheEntry()
+                    )
+                    origin_entry.links.append(
+                        (
+                            origin_sequence_number,
+                            target_chain_id,
+                            target_sequence_number,
+                            target_entry,
+                        )
+                    )
+
+            if cache:
+                for chain_id, entry in cache_entries.items():
+                    if chain_id not in cache:
+                        cache[chain_id] = entry
+
+            chains_to_fetch_sorted.difference_update(links)
 
             yield links
 
+        end_block = time.monotonic()
+
     def _get_auth_chain_ids_txn(
         self, txn: LoggingTransaction, event_ids: Collection[str], include_given: bool
     ) -> Set[str]:
@@ -581,7 +678,7 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
         # are reachable from any event.
 
         # (We need to take a copy of `seen_chains` as the function mutates it)
-        for links in self._get_chain_links(txn, set(seen_chains)):
+        for links in self._get_chain_links(txn, seen_chains, self._chain_links_cache):
             for chains in set_to_chain:
                 for chain_id in links:
                     if chain_id not in chains:

synapse/storage/databases/main/events.py

@@ -19,6 +19,7 @@
 # [This file includes modifications made by New Vector Limited]
 #
 #
+import collections
 import itertools
 import logging
 from collections import OrderedDict
@@ -53,6 +54,7 @@ from synapse.storage.database import (
     LoggingDatabaseConnection,
     LoggingTransaction,
 )
+from synapse.storage.databases.main.event_federation import EventFederationStore
 from synapse.storage.databases.main.events_worker import EventCacheEntry
 from synapse.storage.databases.main.search import SearchEntry
 from synapse.storage.engines import PostgresEngine
@@ -768,40 +770,26 @@ class PersistEventsStore:
         #      that have the same chain ID as the event.
         #   2. For each retained auth event we:
         #       a. Add a link from the event's to the auth event's chain
-        #          ID/sequence number; and
-        #       b. Add a link from the event to every chain reachable by the
-        #          auth event.
+        #          ID/sequence number
 
         # Step 1, fetch all existing links from all the chains we've seen
         # referenced.
         chain_links = _LinkMap()
-        auth_chain_rows = cast(
-            List[Tuple[int, int, int, int]],
-            db_pool.simple_select_many_txn(
-                txn,
-                table="event_auth_chain_links",
-                column="origin_chain_id",
-                iterable={chain_id for chain_id, _ in chain_map.values()},
-                keyvalues={},
-                retcols=(
-                    "origin_chain_id",
-                    "origin_sequence_number",
-                    "target_chain_id",
-                    "target_sequence_number",
-                ),
-            ),
-        )
-        for (
-            origin_chain_id,
-            origin_sequence_number,
-            target_chain_id,
-            target_sequence_number,
-        ) in auth_chain_rows:
-            chain_links.add_link(
-                (origin_chain_id, origin_sequence_number),
-                (target_chain_id, target_sequence_number),
-                new=False,
-            )
+
+        for links in EventFederationStore._get_chain_links(
+            txn, {chain_id for chain_id, _ in chain_map.values()}
+        ):
+            for origin_chain_id, inner_links in links.items():
+                for (
+                    origin_sequence_number,
+                    target_chain_id,
+                    target_sequence_number,
+                ) in inner_links:
+                    chain_links.add_link(
+                        (origin_chain_id, origin_sequence_number),
+                        (target_chain_id, target_sequence_number),
+                        new=False,
+                    )
 
         # We do this in toplogical order to avoid adding redundant links.
         for event_id in sorted_topologically(
@@ -836,18 +824,6 @@ class PersistEventsStore:
                     (chain_id, sequence_number), (auth_chain_id, auth_sequence_number)
                 )
 
-                # Step 2b, add a link to chains reachable from the auth
-                # event.
-                for target_id, target_seq in chain_links.get_links_from(
-                    (auth_chain_id, auth_sequence_number)
-                ):
-                    if target_id == chain_id:
-                        continue
-
-                    chain_links.add_link(
-                        (chain_id, sequence_number), (target_id, target_seq)
-                    )
-
         db_pool.simple_insert_many_txn(
             txn,
             table="event_auth_chain_links",
@@ -2451,31 +2427,6 @@ class _LinkMap:
         current_links[src_seq] = target_seq
         return True
 
-    def get_links_from(
-        self, src_tuple: Tuple[int, int]
-    ) -> Generator[Tuple[int, int], None, None]:
-        """Gets the chains reachable from the given chain/sequence number.
-
-        Yields:
-            The chain ID and sequence number the link points to.
-        """
-        src_chain, src_seq = src_tuple
-        for target_id, sequence_numbers in self.maps.get(src_chain, {}).items():
-            for link_src_seq, target_seq in sequence_numbers.items():
-                if link_src_seq <= src_seq:
-                    yield target_id, target_seq
-
-    def get_links_between(
-        self, source_chain: int, target_chain: int
-    ) -> Generator[Tuple[int, int], None, None]:
-        """Gets the links between two chains.
-
-        Yields:
-            The source and target sequence numbers.
-        """
-
-        yield from self.maps.get(source_chain, {}).get(target_chain, {}).items()
-
     def get_additions(self) -> Generator[Tuple[int, int, int, int], None, None]:
         """Gets any newly added links.
 
@@ -2502,9 +2453,24 @@ class _LinkMap:
         if src_chain == target_chain:
             return target_seq <= src_seq
 
-        links = self.get_links_between(src_chain, target_chain)
-        for link_start_seq, link_end_seq in links:
-            if link_start_seq <= src_seq and target_seq <= link_end_seq:
-                return True
+        # We have to graph traverse the links to check for indirect paths.
+        visited_chains: Dict[int, int] = collections.Counter()
+        search = [(src_chain, src_seq)]
+        while search:
+            chain, seq = search.pop()
+            visited_chains[chain] = max(seq, visited_chains[chain])
+            for tc, links in self.maps.get(chain, {}).items():
+                for ss, ts in links.items():
+                    # Don't revisit chains we've already seen, unless the target
+                    # sequence number is higher than last time.
+                    if ts <= visited_chains.get(tc, 0):
+                        continue
+
+                    if ss <= seq:
+                        if tc == target_chain:
+                            if target_seq <= ts:
+                                return True
+                        else:
+                            search.append((tc, ts))
 
         return False

synapse/storage/databases/main/registration.py

@@ -236,7 +236,8 @@ class RegistrationWorkerStore(CacheInvalidationWorkerStore):
                     consent_server_notice_sent, appservice_id, creation_ts, user_type,
                     deactivated, COALESCE(shadow_banned, FALSE) AS shadow_banned,
                     COALESCE(approved, TRUE) AS approved,
-                    COALESCE(locked, FALSE) AS locked
+                    COALESCE(locked, FALSE) AS locked,
+                    suspended
                 FROM users
                 WHERE name = ?
                 """,
@@ -261,6 +262,7 @@ class RegistrationWorkerStore(CacheInvalidationWorkerStore):
                 shadow_banned,
                 approved,
                 locked,
+                suspended,
             ) = row
 
             return UserInfo(
@@ -277,6 +279,7 @@ class RegistrationWorkerStore(CacheInvalidationWorkerStore):
                 user_type=user_type,
                 approved=bool(approved),
                 locked=bool(locked),
+                suspended=bool(suspended),
             )
 
         return await self.db_pool.runInteraction(
@@ -1180,6 +1183,27 @@ class RegistrationWorkerStore(CacheInvalidationWorkerStore):
         # Convert the potential integer into a boolean.
         return bool(res)
 
+    @cached()
+    async def get_user_suspended_status(self, user_id: str) -> bool:
+        """
+        Determine whether the user's account is suspended.
+            Args:
+                user_id: The user ID of the user in question
+            Returns:
+                True if the user's account is suspended, false if it is not suspended or
+                if the user ID cannot be found.
+        """
+
+        res = await self.db_pool.simple_select_one_onecol(
+            table="users",
+            keyvalues={"name": user_id},
+            retcol="suspended",
+            allow_none=True,
+            desc="get_user_suspended",
+        )
+
+        return bool(res)
+
     async def get_threepid_validation_session(
         self,
         medium: Optional[str],
@@ -2213,6 +2237,35 @@ class RegistrationBackgroundUpdateStore(RegistrationWorkerStore):
         self._invalidate_cache_and_stream(txn, self.get_user_by_id, (user_id,))
         txn.call_after(self.is_guest.invalidate, (user_id,))
 
+    async def set_user_suspended_status(self, user_id: str, suspended: bool) -> None:
+        """
+        Set whether the user's account is suspended in the `users` table.
+
+        Args:
+            user_id: The user ID of the user in question
+            suspended: True if the user is suspended, false if not
+        """
+        await self.db_pool.runInteraction(
+            "set_user_suspended_status",
+            self.set_user_suspended_status_txn,
+            user_id,
+            suspended,
+        )
+
+    def set_user_suspended_status_txn(
+        self, txn: LoggingTransaction, user_id: str, suspended: bool
+    ) -> None:
+        self.db_pool.simple_update_one_txn(
+            txn=txn,
+            table="users",
+            keyvalues={"name": user_id},
+            updatevalues={"suspended": suspended},
+        )
+        self._invalidate_cache_and_stream(
+            txn, self.get_user_suspended_status, (user_id,)
+        )
+        self._invalidate_cache_and_stream(txn, self.get_user_by_id, (user_id,))
+
     async def set_user_locked_status(self, user_id: str, locked: bool) -> None:
         """Set the `locked` property for the provided user to the provided value.
 

synapse/storage/databases/main/roommember.py

@@ -1234,6 +1234,28 @@ class RoomMemberWorkerStore(EventsWorkerStore, CacheInvalidationWorkerStore):
 
         return set(room_ids)
 
+    async def get_membership_event_ids_for_user(
+        self, user_id: str, room_id: str
+    ) -> Set[str]:
+        """Get all event_ids for the given user and room.
+
+        Args:
+            user_id: The user ID to get the event IDs for.
+            room_id: The room ID to look up events for.
+
+        Returns:
+            Set of event IDs
+        """
+
+        event_ids = await self.db_pool.simple_select_onecol(
+            table="room_memberships",
+            keyvalues={"user_id": user_id, "room_id": room_id},
+            retcol="event_id",
+            desc="get_membership_event_ids_for_user",
+        )
+
+        return set(event_ids)
+
     @cached(max_entries=5000)
     async def _get_membership_from_event_id(
         self, member_event_id: str

synapse/storage/databases/main/search.py

@@ -470,6 +470,8 @@ class SearchStore(SearchBackgroundUpdateStore):
         count_args = args
         count_clauses = clauses
 
+        sqlite_highlights: List[str] = []
+
         if isinstance(self.database_engine, PostgresEngine):
             search_query = search_term
             sql = """
@@ -486,7 +488,7 @@ class SearchStore(SearchBackgroundUpdateStore):
             """
             count_args = [search_query] + count_args
         elif isinstance(self.database_engine, Sqlite3Engine):
-            search_query = _parse_query_for_sqlite(search_term)
+            search_query, sqlite_highlights = _parse_query_for_sqlite(search_term)
 
             sql = """
             SELECT rank(matchinfo(event_search)) as rank, room_id, event_id
@@ -531,9 +533,11 @@ class SearchStore(SearchBackgroundUpdateStore):
 
         event_map = {ev.event_id: ev for ev in events}
 
-        highlights = None
+        highlights: Collection[str] = []
         if isinstance(self.database_engine, PostgresEngine):
             highlights = await self._find_highlights_in_postgres(search_query, events)
+        else:
+            highlights = sqlite_highlights
 
         count_sql += " GROUP BY room_id"
 
@@ -597,6 +601,8 @@ class SearchStore(SearchBackgroundUpdateStore):
         count_args = list(args)
         count_clauses = list(clauses)
 
+        sqlite_highlights: List[str] = []
+
         if pagination_token:
             try:
                 origin_server_ts_str, stream_str = pagination_token.split(",")
@@ -647,7 +653,7 @@ class SearchStore(SearchBackgroundUpdateStore):
             CROSS JOIN events USING (event_id)
             WHERE
             """
-            search_query = _parse_query_for_sqlite(search_term)
+            search_query, sqlite_highlights = _parse_query_for_sqlite(search_term)
             args = [search_query] + args
 
             count_sql = """
@@ -694,9 +700,11 @@ class SearchStore(SearchBackgroundUpdateStore):
 
         event_map = {ev.event_id: ev for ev in events}
 
-        highlights = None
+        highlights: Collection[str] = []
         if isinstance(self.database_engine, PostgresEngine):
             highlights = await self._find_highlights_in_postgres(search_query, events)
+        else:
+            highlights = sqlite_highlights
 
         count_sql += " GROUP BY room_id"
 
@@ -892,19 +900,25 @@ def _tokenize_query(query: str) -> TokenList:
     return tokens
 
 
-def _tokens_to_sqlite_match_query(tokens: TokenList) -> str:
+def _tokens_to_sqlite_match_query(tokens: TokenList) -> Tuple[str, List[str]]:
     """
     Convert the list of tokens to a string suitable for passing to sqlite's MATCH.
     Assume sqlite was compiled with enhanced query syntax.
 
+    Returns the sqlite-formatted query string and the tokenized search terms
+    that can be used as highlights.
+
     Ref: https://www.sqlite.org/fts3.html#full_text_index_queries
     """
     match_query = []
+    highlights = []
     for token in tokens:
         if isinstance(token, str):
             match_query.append(token)
+            highlights.append(token)
         elif isinstance(token, Phrase):
             match_query.append('"' + " ".join(token.phrase) + '"')
+            highlights.append(" ".join(token.phrase))
         elif token == SearchToken.Not:
             # TODO: SQLite treats NOT as a *binary* operator. Hopefully a search
             # term has already been added before this.
@@ -916,11 +930,14 @@ def _tokens_to_sqlite_match_query(tokens: TokenList) -> str:
         else:
             raise ValueError(f"unknown token {token}")
 
-    return "".join(match_query)
+    return "".join(match_query), highlights
 
 
-def _parse_query_for_sqlite(search_term: str) -> str:
+def _parse_query_for_sqlite(search_term: str) -> Tuple[str, List[str]]:
     """Takes a plain unicode string from the user and converts it into a form
     that can be passed to sqllite's matchinfo().
+
+    Returns the converted query string and the tokenized search terms
+    that can be used as highlights.
     """
     return _tokens_to_sqlite_match_query(_tokenize_query(search_term))

synapse/storage/databases/main/transactions.py

@@ -660,6 +660,7 @@ class TransactionWorkerStore(CacheInvalidationWorkerStore):
                     limit=limit,
                     retcols=("room_id", "stream_ordering"),
                     order_direction=order,
+                    keyvalues={"destination": destination},
                 ),
             )
             return rooms, count

synapse/storage/schema/__init__.py

@@ -19,7 +19,7 @@
 #
 #
 
-SCHEMA_VERSION = 84  # remember to update the list below when updating
+SCHEMA_VERSION = 85  # remember to update the list below when updating
 """Represents the expectations made by the codebase about the database schema
 
 This should be incremented whenever the codebase changes its requirements on the
@@ -132,12 +132,19 @@ Changes in SCHEMA_VERSION = 82
 
 Changes in SCHEMA_VERSION = 83
     - The event_txn_id is no longer used.
+
+Changes in SCHEMA_VERSION = 84
+    - No longer assumes that `event_auth_chain_links` holds transitive links, and
+      so read operations must do graph traversal.
+
+Changes in SCHEMA_VERSION = 85
+    - Add a column `suspended` to the `users` table
 """
 
 
 SCHEMA_COMPAT_VERSION = (
-    # The event_txn_id table and tables from MSC2716 no longer exist.
-    83
+    # Transitive links are no longer written to `event_auth_chain_links`
+    84
 )
 """Limit on how far the synapse codebase can be rolled back without breaking db compat
 

synapse/storage/schema/main/delta/85/01_add_suspended.sql

@@ -0,0 +1,14 @@
+--
+-- This file is licensed under the Affero General Public License (AGPL) version 3.
+--
+-- Copyright (C) 2024 New Vector, Ltd
+--
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU Affero General Public License as
+-- published by the Free Software Foundation, either version 3 of the
+-- License, or (at your option) any later version.
+--
+-- See the GNU Affero General Public License for more details:
+-- <https://www.gnu.org/licenses/agpl-3.0.html>.
+
+ALTER TABLE users ADD COLUMN suspended BOOLEAN DEFAULT FALSE NOT NULL;

synapse/synapse_rust/rendezvous.pyi

@@ -0,0 +1,30 @@
+# This file is licensed under the Affero General Public License (AGPL) version 3.
+#
+# Copyright (C) 2024 New Vector, Ltd
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# See the GNU Affero General Public License for more details:
+# <https://www.gnu.org/licenses/agpl-3.0.html>.
+
+from twisted.web.iweb import IRequest
+
+from synapse.server import HomeServer
+
+class RendezvousHandler:
+    def __init__(
+        self,
+        homeserver: HomeServer,
+        /,
+        capacity: int = 100,
+        max_content_length: int = 4 * 1024,  # MSC4108 specifies 4KB
+        eviction_interval: int = 60 * 1000,
+        ttl: int = 60 * 1000,
+    ) -> None: ...
+    def handle_post(self, request: IRequest) -> None: ...
+    def handle_get(self, request: IRequest, session_id: str) -> None: ...
+    def handle_put(self, request: IRequest, session_id: str) -> None: ...
+    def handle_delete(self, request: IRequest, session_id: str) -> None: ...

synapse/types/__init__.py

@@ -1156,6 +1156,7 @@ class UserInfo:
         user_type:  User type (None for normal user, 'support' and 'bot' other options).
         approved: If the user has been "approved" to register on the server.
         locked: Whether the user's account has been locked
+        suspended: Whether the user's account is currently suspended
     """
 
     user_id: UserID
@@ -1171,6 +1172,7 @@ class UserInfo:
     is_shadow_banned: bool
     approved: bool
     locked: bool
+    suspended: bool
 
 
 class UserProfile(TypedDict):

synapse/util/caches/stream_change_cache.py

@@ -115,7 +115,7 @@ class StreamChangeCache:
         """
         new_size = math.floor(self._original_max_size * factor)
         if new_size != self._max_size:
-            self.max_size = new_size
+            self._max_size = new_size
             self._evict()
             return True
         return False
@@ -165,7 +165,7 @@ class StreamChangeCache:
         return False
 
     def get_entities_changed(
-        self, entities: Collection[EntityType], stream_pos: int
+        self, entities: Collection[EntityType], stream_pos: int, _perf_factor: int = 1
     ) -> Union[Set[EntityType], FrozenSet[EntityType]]:
         """
         Returns the subset of the given entities that have had changes after the given position.
@@ -177,6 +177,8 @@ class StreamChangeCache:
         Args:
             entities: Entities to check for changes.
             stream_pos: The stream position to check for changes after.
+            _perf_factor: Used by unit tests to choose when to use each
+                optimisation.
 
         Return:
             A subset of entities which have changed after the given stream position.
@@ -184,6 +186,22 @@ class StreamChangeCache:
             This will be all entities if the given stream position is at or earlier
             than the earliest known stream position.
         """
+        if not self._cache or stream_pos <= self._earliest_known_stream_pos:
+            self.metrics.inc_misses()
+            return set(entities)
+
+        # If there have been tonnes of changes compared with the number of
+        # entities, it is faster to check each entities stream ordering
+        # one-by-one.
+        max_stream_pos, _ = self._cache.peekitem()
+        if max_stream_pos - stream_pos > _perf_factor * len(entities):
+            self.metrics.inc_hits()
+            return {
+                entity
+                for entity in entities
+                if self._entity_to_key.get(entity, -1) > stream_pos
+            }
+
         cache_result = self.get_all_entities_changed(stream_pos)
         if cache_result.hit:
             # We now do an intersection, trying to do so in the most efficient

synapse/visibility.py

@@ -36,10 +36,15 @@ from typing import (
 
 import attr
 
-from synapse.api.constants import EventTypes, HistoryVisibility, Membership
+from synapse.api.constants import (
+    EventTypes,
+    EventUnsignedContentFields,
+    HistoryVisibility,
+    Membership,
+)
 from synapse.events import EventBase
 from synapse.events.snapshot import EventContext
-from synapse.events.utils import prune_event
+from synapse.events.utils import clone_event, prune_event
 from synapse.logging.opentracing import trace
 from synapse.storage.controllers import StorageControllers
 from synapse.storage.databases.main import DataStore
@@ -77,6 +82,7 @@ async def filter_events_for_client(
     is_peeking: bool = False,
     always_include_ids: FrozenSet[str] = frozenset(),
     filter_send_to_client: bool = True,
+    msc4115_membership_on_events: bool = False,
 ) -> List[EventBase]:
     """
     Check which events a user is allowed to see. If the user can see the event but its
@@ -95,9 +101,12 @@ async def filter_events_for_client(
         filter_send_to_client: Whether we're checking an event that's going to be
             sent to a client. This might not always be the case since this function can
             also be called to check whether a user can see the state at a given point.
+        msc4115_membership_on_events: Whether to include the requesting user's
+            membership in the "unsigned" data, per MSC4115.
 
     Returns:
-        The filtered events.
+        The filtered events. If `msc4115_membership_on_events` is true, the `unsigned`
+        data is annotated with the membership state of `user_id` at each event.
     """
     # Filter out events that have been soft failed so that we don't relay them
     # to clients.
@@ -134,7 +143,8 @@ async def filter_events_for_client(
             )
 
     def allowed(event: EventBase) -> Optional[EventBase]:
-        return _check_client_allowed_to_see_event(
+        state_after_event = event_id_to_state.get(event.event_id)
+        filtered = _check_client_allowed_to_see_event(
             user_id=user_id,
             event=event,
             clock=storage.main.clock,
@@ -142,13 +152,45 @@ async def filter_events_for_client(
             sender_ignored=event.sender in ignore_list,
             always_include_ids=always_include_ids,
             retention_policy=retention_policies[room_id],
-            state=event_id_to_state.get(event.event_id),
+            state=state_after_event,
             is_peeking=is_peeking,
             sender_erased=erased_senders.get(event.sender, False),
         )
+        if filtered is None:
+            return None
 
-    # Check each event: gives an iterable of None or (a potentially modified)
-    # EventBase.
+        if not msc4115_membership_on_events:
+            return filtered
+
+        # Annotate the event with the user's membership after the event.
+        #
+        # Normally we just look in `state_after_event`, but if the event is an outlier
+        # we won't have such a state. The only outliers that are returned here are the
+        # user's own membership event, so we can just inspect that.
+
+        user_membership_event: Optional[EventBase]
+        if event.type == EventTypes.Member and event.state_key == user_id:
+            user_membership_event = event
+        elif state_after_event is not None:
+            user_membership_event = state_after_event.get((EventTypes.Member, user_id))
+        else:
+            # unreachable!
+            raise Exception("Missing state for event that is not user's own membership")
+
+        user_membership = (
+            user_membership_event.membership
+            if user_membership_event
+            else Membership.LEAVE
+        )
+
+        # Copy the event before updating the unsigned data: this shouldn't be persisted
+        # to the cache!
+        cloned = clone_event(filtered)
+        cloned.unsigned[EventUnsignedContentFields.MSC4115_MEMBERSHIP] = user_membership
+
+        return cloned
+
+    # Check each event: gives an iterable of None or (a modified) EventBase.
     filtered_events = map(allowed, events)
 
     # Turn it into a list and remove None entries before returning.
@@ -396,7 +438,13 @@ def _check_client_allowed_to_see_event(
 
 @attr.s(frozen=True, slots=True, auto_attribs=True)
 class _CheckMembershipReturn:
-    "Return value of _check_membership"
+    """Return value of `_check_membership`.
+
+    Attributes:
+        allowed: Whether the user should be allowed to see the event.
+        joined: Whether the user was joined to the room at the event.
+    """
+
     allowed: bool
     joined: bool
 
@@ -408,12 +456,7 @@ def _check_membership(
     state: StateMap[EventBase],
     is_peeking: bool,
 ) -> _CheckMembershipReturn:
-    """Check whether the user can see the event due to their membership
-
-    Returns:
-        True if they can, False if they can't, plus the membership of the user
-        at the event.
-    """
+    """Check whether the user can see the event due to their membership"""
     # If the event is the user's own membership event, use the 'most joined'
     # membership
     membership = None
@@ -435,7 +478,7 @@ def _check_membership(
         if membership == "leave" and (
             prev_membership == "join" or prev_membership == "invite"
         ):
-            return _CheckMembershipReturn(True, membership == Membership.JOIN)
+            return _CheckMembershipReturn(True, False)
 
         new_priority = MEMBERSHIP_PRIORITY.index(membership)
         old_priority = MEMBERSHIP_PRIORITY.index(prev_membership)

tests/events/test_utils.py

@@ -32,6 +32,7 @@ from synapse.events.utils import (
     PowerLevelsContent,
     SerializeEventConfig,
     _split_field,
+    clone_event,
     copy_and_fixup_power_levels_contents,
     maybe_upsert_event_field,
     prune_event,
@@ -611,6 +612,29 @@ class PruneEventTestCase(stdlib_unittest.TestCase):
         )
 
 
+class CloneEventTestCase(stdlib_unittest.TestCase):
+    def test_unsigned_is_copied(self) -> None:
+        original = make_event_from_dict(
+            {
+                "type": "A",
+                "event_id": "$test:domain",
+                "unsigned": {"a": 1, "b": 2},
+            },
+            RoomVersions.V1,
+            {"txn_id": "txn"},
+        )
+        original.internal_metadata.stream_ordering = 1234
+        self.assertEqual(original.internal_metadata.stream_ordering, 1234)
+
+        cloned = clone_event(original)
+        cloned.unsigned["b"] = 3
+
+        self.assertEqual(original.unsigned, {"a": 1, "b": 2})
+        self.assertEqual(cloned.unsigned, {"a": 1, "b": 3})
+        self.assertEqual(cloned.internal_metadata.stream_ordering, 1234)
+        self.assertEqual(cloned.internal_metadata.txn_id, "txn")
+
+
 class SerializeEventTestCase(stdlib_unittest.TestCase):
     def serialize(self, ev: EventBase, fields: Optional[List[str]]) -> JsonDict:
         return serialize_event(

tests/federation/test_federation_server.py

@@ -67,6 +67,23 @@ class FederationServerTests(unittest.FederatingHomeserverTestCase):
         self.assertEqual(HTTPStatus.BAD_REQUEST, channel.code, channel.result)
         self.assertEqual(channel.json_body["errcode"], "M_NOT_JSON")
 
+    def test_failed_edu_causes_500(self) -> None:
+        """If the EDU handler fails, /send should return a 500."""
+
+        async def failing_handler(_origin: str, _content: JsonDict) -> None:
+            raise Exception("bleh")
+
+        self.hs.get_federation_registry().register_edu_handler(
+            "FAIL_EDU_TYPE", failing_handler
+        )
+
+        channel = self.make_signed_federation_request(
+            "PUT",
+            "/_matrix/federation/v1/send/txn",
+            {"edus": [{"edu_type": "FAIL_EDU_TYPE", "content": {}}]},
+        )
+        self.assertEqual(500, channel.code, channel.result)
+
 
 class ServerACLsTestCase(unittest.TestCase):
     def test_blocked_server(self) -> None: