Forgejo does not support build cache

https://github.com/matrix-org/sytest/pull/1383 updates some sytests in
line with MSC3967. Dendrite does not support MSC3967, so these tests
fail.

.dockerignore

@@ -1,3 +1,2 @@
 bin
 *.wasm
-.git

.forgejo/workflows/docker.yml

@@ -0,0 +1,59 @@
+on:
+  push:
+    tags:
+      - 'v*'
+
+env:
+  GHCR_NAMESPACE: sigb.us
+  PLATFORMS: linux/amd64
+  FORGEJO_USER: signaryk
+
+jobs:
+  monolith:
+    name: Monolith image
+    runs-on: docker
+    container:
+      image: ghcr.io/catthehacker/ubuntu:act-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Get release tag & build flags
+        if: github.event_name == 'release' # Only for GitHub releases
+        run: |
+          echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login to sigb.us container registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.sigb.us
+          username: ${{ env.FORGEJO_USER }}
+          password: ${{ secrets.FORGEJO_TOKEN }}
+
+      - name: Build main monolith image
+        id: docker_build_monolith
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          platforms: ${{ env.PLATFORMS }}
+          push: true
+          tags: |
+            git.sigb.us/${{ env.GHCR_NAMESPACE }}/dendrite:${{ github.ref_name }}
+            git.sigb.us/${{ env.GHCR_NAMESPACE }}/dendrite:latest
+            git.sigb.us/${{ env.GHCR_NAMESPACE }}/dendrite:devel
+
+      - name: Build release monolith image
+        if: github.event_name == 'release' # Only for GitHub releases
+        id: docker_build_monolith_release
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          platforms: ${{ env.PLATFORMS }}
+          push: true
+          tags: |
+            git.sigb.us/${{ env.GHCR_NAMESPACE }}/dendrite:latest
+            git.sigb.us/${{ env.GHCR_NAMESPACE }}/dendrite:stable
+            git.sigb.us/${{ env.GHCR_NAMESPACE }}/dendrite:${{ env.RELEASE_VERSION }}

.github/ISSUE_TEMPLATE/BUG_REPORT.md

@@ -62,6 +62,6 @@ If you can identify any relevant log snippets from server logs, please include
 those (please be careful to remove any personal or private data). Please surround them with
 ``` (three backticks, on a line on their own), so that they are formatted legibly.
 
-Alternatively, please send logs to @kegan:matrix.org or @neilalexander:matrix.org
+Alternatively, please send logs to @kegan:matrix.org, @s7evink:matrix.org or @devonh:one.ems.host
 with a link to the respective Github issue, thanks!
 -->

.github/codecov.yaml

@@ -7,7 +7,7 @@ coverage:
     project:
       default:
         target: auto
-        threshold: 0%
+        threshold: 0.1%
         base: auto
         flags:
           - unittests

.github/workflows/dendrite.yml

@@ -28,10 +28,10 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ false }} # disable for now
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "stable"
           cache: true
@@ -41,7 +41,7 @@ jobs:
         with:
           node-version: 14
 
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
@@ -66,11 +66,11 @@ jobs:
     name: Linting
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install libolm
         run: sudo apt-get install libolm-dev libolm3
       - name: Install Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "stable"
       - name: golangci-lint
@@ -102,14 +102,14 @@ jobs:
           --health-timeout 5s
           --health-retries 5
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install libolm
         run: sudo apt-get install libolm-dev libolm3
       - name: Setup go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "stable"
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         # manually set up caches, as they otherwise clash with different steps using setup-go with cache=true
         with:
           path: |
@@ -123,7 +123,7 @@ jobs:
         with:
           # Optional: pass GITHUB_TOKEN to avoid rate limiting.
           token: ${{ secrets.GITHUB_TOKEN }}
-      - run: go test -json -v ./... 2>&1 | gotestfmt
+      - run: go test -json -v ./... 2>&1 | gotestfmt -hide all
         env:
           POSTGRES_HOST: localhost
           POSTGRES_USER: postgres
@@ -141,12 +141,12 @@ jobs:
         goos: ["linux"]
         goarch: ["amd64", "386"]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "stable"
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.cache/go-build
@@ -174,12 +174,12 @@ jobs:
         goos: ["windows"]
         goarch: ["amd64"]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "stable"
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.cache/go-build
@@ -235,11 +235,11 @@ jobs:
           --health-timeout 5s
           --health-retries 5
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install libolm
         run: sudo apt-get install libolm-dev libolm3
       - name: Setup go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "stable"
       - name: Set up gotestfmt
@@ -247,7 +247,7 @@ jobs:
         with:
           # Optional: pass GITHUB_TOKEN to avoid rate limiting.
           token: ${{ secrets.GITHUB_TOKEN }}
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.cache/go-build
@@ -255,17 +255,18 @@ jobs:
           key: ${{ runner.os }}-go-stable-test-race-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-go-stable-test-race-
-      - run: go test -race -json -v -coverpkg=./... -coverprofile=cover.out $(go list ./... | grep -v /cmd/dendrite*) 2>&1 | gotestfmt
+      - run: go test -race -json -v -coverpkg=./... -coverprofile=cover.out $(go list ./... | grep -v /cmd/dendrite*) 2>&1 | gotestfmt -hide all
         env:
           POSTGRES_HOST: localhost
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres
           POSTGRES_DB: dendrite
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           flags: unittests
           fail_ci_if_error: true
+          token: ${{ secrets.CODECOV_TOKEN }}
 
   # run database upgrade tests
   upgrade_test:
@@ -274,12 +275,22 @@ jobs:
     needs: initial-tests-done
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "stable"
           cache: true
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/go-build
+            ~/go/pkg/mod
+          key: ${{ runner.os }}-go-upgrade-test-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-upgrade-test-
+      - name: Docker version
+        run: docker version
       - name: Build upgrade-tests
         run: go build ./cmd/dendrite-upgrade-tests
       - name: Test upgrade (PostgreSQL)
@@ -294,12 +305,22 @@ jobs:
     needs: initial-tests-done
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "stable"
           cache: true
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/go-build
+            ~/go/pkg/mod
+          key: ${{ runner.os }}-go-upgrade-direct-test-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-upgrade-direct-test-
+      - name: Docker version
+        run: docker version
       - name: Build upgrade-tests
         run: go build ./cmd/dendrite-upgrade-tests
       - name: Test upgrade (PostgreSQL)
@@ -336,8 +357,8 @@ jobs:
         SYTEST_BRANCH: ${{ github.head_ref }}
         CGO_ENABLED: ${{ matrix.cgo && 1 }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.cache/go-build
@@ -360,7 +381,7 @@ jobs:
         run: /src/are-we-synapse-yet.py /logs/results.tap -v
         continue-on-error: true # not fatal
       - name: Upload Sytest logs
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: Sytest Logs - ${{ job.status }} - (Dendrite, ${{ join(matrix.*, ', ') }})
@@ -400,8 +421,8 @@ jobs:
         run: |
           sudo apt-get update && sudo apt-get install -y libolm3 libolm-dev
           go install github.com/gotesttools/gotestfmt/v2/cmd/gotestfmt@latest
-      - name: Run actions/checkout@v3 for dendrite
+      - name: Run actions/checkout@v4 for dendrite
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: dendrite
 
@@ -436,7 +457,7 @@ jobs:
       # Run Complement
       - run: |
           set -o pipefail &&
-          go test -v -json -tags dendrite_blacklist ./tests/... 2>&1 | gotestfmt
+          go test -v -json -tags dendrite_blacklist ./tests ./tests/csapi 2>&1 | gotestfmt -hide all
         shell: bash
         name: Run Complement Tests
         env:

.github/workflows/docker.yml

@@ -27,26 +27,22 @@ jobs:
       security-events: write # To upload Trivy sarif files
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Get release tag & build flags
         if: github.event_name == 'release' # Only for GitHub releases
         run: |
           echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-          echo "BUILD=$(git rev-parse --short HEAD || \"\")" >> $GITHUB_ENV
-          BRANCH=$(git symbolic-ref --short HEAD | tr -d \/)
-          [ ${BRANCH} == "main" ] && BRANCH=""
-          echo "BRANCH=${BRANCH}" >> $GITHUB_ENV
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v1
+        uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
       - name: Login to Docker Hub
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ env.DOCKER_HUB_USER }}
           password: ${{ secrets.DOCKER_TOKEN }}
       - name: Login to GitHub Containers
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -57,10 +53,9 @@ jobs:
         id: docker_build_monolith
         uses: docker/build-push-action@v3
         with:
-          cache-from: type=gha
+          cache-from: type=registry,ref=ghcr.io/${{ env.GHCR_NAMESPACE }}/dendrite-monolith:buildcache
-          cache-to: type=gha,mode=max
+          cache-to: type=registry,ref=ghcr.io/${{ env.GHCR_NAMESPACE }}/dendrite-monolith:buildcache,mode=max
           context: .
-          build-args: FLAGS=-X github.com/matrix-org/dendrite/internal.branch=${{ env.BRANCH }} -X github.com/matrix-org/dendrite/internal.build=${{ env.BUILD }}
           platforms: ${{ env.PLATFORMS }}
           push: true
           tags: |
@@ -75,7 +70,6 @@ jobs:
           cache-from: type=gha
           cache-to: type=gha,mode=max
           context: .
-          build-args: FLAGS=-X github.com/matrix-org/dendrite/internal.branch=${{ env.BRANCH }} -X github.com/matrix-org/dendrite/internal.build=${{ env.BUILD }}
           platforms: ${{ env.PLATFORMS }}
           push: true
           tags: |
@@ -104,26 +98,22 @@ jobs:
       packages: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Get release tag & build flags
         if: github.event_name == 'release' # Only for GitHub releases
         run: |
           echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-          echo "BUILD=$(git rev-parse --short HEAD || \"\")" >> $GITHUB_ENV
-          BRANCH=$(git symbolic-ref --short HEAD | tr -d \/)
-          [ ${BRANCH} == "main" ] && BRANCH=""
-          echo "BRANCH=${BRANCH}" >> $GITHUB_ENV
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v1
+        uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
       - name: Login to Docker Hub
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ env.DOCKER_HUB_USER }}
           password: ${{ secrets.DOCKER_TOKEN }}
       - name: Login to GitHub Containers
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -137,7 +127,6 @@ jobs:
           cache-from: type=gha
           cache-to: type=gha,mode=max
           context: .
-          build-args: FLAGS=-X github.com/matrix-org/dendrite/internal.branch=${{ env.BRANCH }} -X github.com/matrix-org/dendrite/internal.build=${{ env.BUILD }}
           file: ./build/docker/Dockerfile.demo-pinecone
           platforms: ${{ env.PLATFORMS }}
           push: true
@@ -153,7 +142,6 @@ jobs:
           cache-from: type=gha
           cache-to: type=gha,mode=max
           context: .
-          build-args: FLAGS=-X github.com/matrix-org/dendrite/internal.branch=${{ env.BRANCH }} -X github.com/matrix-org/dendrite/internal.build=${{ env.BUILD }}
           file: ./build/docker/Dockerfile.demo-pinecone
           platforms: ${{ env.PLATFORMS }}
           push: true
@@ -171,26 +159,22 @@ jobs:
       packages: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Get release tag & build flags
         if: github.event_name == 'release' # Only for GitHub releases
         run: |
           echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-          echo "BUILD=$(git rev-parse --short HEAD || \"\")" >> $GITHUB_ENV
-          BRANCH=$(git symbolic-ref --short HEAD | tr -d \/)
-          [ ${BRANCH} == "main" ] && BRANCH=""
-          echo "BRANCH=${BRANCH}" >> $GITHUB_ENV
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v1
+        uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
       - name: Login to Docker Hub
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ env.DOCKER_HUB_USER }}
           password: ${{ secrets.DOCKER_TOKEN }}
       - name: Login to GitHub Containers
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -204,7 +188,6 @@ jobs:
           cache-from: type=gha
           cache-to: type=gha,mode=max
           context: .
-          build-args: FLAGS=-X github.com/matrix-org/dendrite/internal.branch=${{ env.BRANCH }} -X github.com/matrix-org/dendrite/internal.build=${{ env.BUILD }}
           file: ./build/docker/Dockerfile.demo-yggdrasil
           platforms: ${{ env.PLATFORMS }}
           push: true
@@ -220,7 +203,6 @@ jobs:
           cache-from: type=gha
           cache-to: type=gha,mode=max
           context: .
-          build-args: FLAGS=-X github.com/matrix-org/dendrite/internal.branch=${{ env.BRANCH }} -X github.com/matrix-org/dendrite/internal.build=${{ env.BUILD }}
           file: ./build/docker/Dockerfile.demo-yggdrasil
           platforms: ${{ env.PLATFORMS }}
           push: true

.github/workflows/gh-pages.yml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup Pages
         uses: actions/configure-pages@v2
       - name: Build with Jekyll

.github/workflows/helm.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -32,7 +32,7 @@ jobs:
           version: v3.10.0
 
       - name: Run chart-releaser
-        uses: helm/chart-releaser-action@v1.4.1
+        uses: helm/chart-releaser-action@ed43eb303604cbc0eeec8390544f7748dc6c790d # specific commit, since `mark_as_latest` is not yet in a release
         env:
           CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
         with:

.github/workflows/k8s.yml

@@ -17,7 +17,7 @@ jobs:
     outputs:
       changed: ${{ steps.list-changed.outputs.changed }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: azure/setup-helm@v3
@@ -48,7 +48,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
           ref: ${{ inputs.checkoutCommit }}
@@ -66,7 +66,7 @@ jobs:
       - name: Create k3d cluster
         uses: nolar/setup-k3d-k3s@v1
         with:
-          version: v1.21
+          version: v1.28
       - name: Remove node taints
         run: |
           kubectl taint --all=true nodes node.cloudprovider.kubernetes.io/uninitialized- || true

.github/workflows/schedules.yaml

@@ -10,8 +10,26 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  check_date: # https://stackoverflow.com/questions/63014786/how-to-schedule-a-github-actions-nightly-build-but-run-it-only-when-there-where
+    runs-on: ubuntu-latest
+    name: Check latest commit
+    outputs:
+      should_run: ${{ steps.should_run.outputs.should_run }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: print latest_commit
+        run: echo ${{ github.sha }}
+
+      - id: should_run
+        continue-on-error: true
+        name: check latest commit is less than a day
+        if: ${{ github.event_name == 'schedule' }}
+        run: test -z $(git rev-list  --after="24 hours"  ${{ github.sha }}) && echo "::set-output name=should_run::false"
+
   # run Sytest in different variations
   sytest:
+    needs: check_date
+    if: ${{ needs.check_date.outputs.should_run != 'false' }}
     timeout-minutes: 60
     name: "Sytest (${{ matrix.label }})"
     runs-on: ubuntu-latest
@@ -38,8 +56,8 @@ jobs:
         RACE_DETECTION: 1
         COVER: 1
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.cache/go-build
@@ -62,7 +80,7 @@ jobs:
         run: /src/are-we-synapse-yet.py /logs/results.tap -v
         continue-on-error: true # not fatal
       - name: Upload Sytest logs
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: Sytest Logs - ${{ job.status }} - (Dendrite ${{ join(matrix.*, ' ') }})
@@ -75,31 +93,34 @@ jobs:
     timeout-minutes: 5
     name: "Sytest Coverage"
     runs-on: ubuntu-latest
-    needs: sytest # only run once Sytest is done
+    needs: [ sytest, check_date ] # only run once Sytest is done and there was a commit
-    if: ${{ always() }}
+    if: ${{ always() && needs.check_date.outputs.should_run != 'false' }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: 'stable'
           cache: true
       - name: Download all artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
       - name: Collect coverage
         run: |
           go tool covdata textfmt -i="$(find Sytest* -name 'covmeta*' -type f -exec dirname {} \; | uniq | paste -s -d ',' -)" -o sytest.cov
           grep -Ev 'relayapi|setup/mscs|api_trace' sytest.cov > final.cov
           go tool covdata func -i="$(find Sytest* -name 'covmeta*' -type f -exec dirname {} \; | uniq | paste -s -d ',' -)"
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           files: ./final.cov
           flags: sytest
           fail_ci_if_error: true
+          token: ${{ secrets.CODECOV_TOKEN }}
 
   # run Complement
   complement:
+    needs: check_date
+    if: ${{ needs.check_date.outputs.should_run != 'false' }}
     name: "Complement (${{ matrix.label }})"
     timeout-minutes: 60
     runs-on: ubuntu-latest
@@ -128,9 +149,9 @@ jobs:
         # See https://github.com/actions/virtual-environments/blob/main/images/linux/Ubuntu2004-Readme.md specifically GOROOT_1_17_X64
         run: |
           sudo apt-get update && sudo apt-get install -y libolm3 libolm-dev
-          go get -v github.com/gotesttools/gotestfmt/v2/cmd/gotestfmt@latest
+          go install github.com/gotesttools/gotestfmt/v2/cmd/gotestfmt@latest
-      - name: Run actions/checkout@v3 for dendrite
+      - name: Run actions/checkout@v4 for dendrite
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: dendrite
 
@@ -174,7 +195,7 @@ jobs:
       # Run Complement
       - run: |
           set -o pipefail &&
-          go test -v -json -tags dendrite_blacklist ./tests/... 2>&1 | gotestfmt
+          go test -v -json -tags dendrite_blacklist ./tests ./tests/csapi 2>&1 | gotestfmt -hide all
         shell: bash
         name: Run Complement Tests
         env:
@@ -185,7 +206,7 @@ jobs:
         working-directory: complement
 
       - name: Upload Complement logs
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: Complement Logs - (Dendrite ${{ join(matrix.*, ' ') }})
@@ -196,30 +217,32 @@ jobs:
     timeout-minutes: 5
     name: "Complement Coverage"
     runs-on: ubuntu-latest
-    needs: complement # only run once Complement is done
+    needs: [ complement, check_date ] # only run once Complements is done and there was a commit
-    if: ${{ always() }}
+    if: ${{ always() && needs.check_date.outputs.should_run != 'false' }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: 'stable'
           cache: true
       - name: Download all artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
       - name: Collect coverage
         run: |
           go tool covdata textfmt -i="$(find Complement* -name 'covmeta*' -type f -exec dirname {} \; | uniq | paste -s -d ',' -)" -o complement.cov
           grep -Ev 'relayapi|setup/mscs|api_trace' complement.cov > final.cov
           go tool covdata func -i="$(find Complement* -name 'covmeta*' -type f -exec dirname {} \; | uniq | paste -s -d ',' -)"
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           files: ./final.cov
           flags: complement
           fail_ci_if_error: true
+          token: ${{ secrets.CODECOV_TOKEN }} # required
 
   element-web:
+    if: ${{ false }} # disable for now, as Cypress has been replaced by Playwright
     timeout-minutes: 120
     runs-on: ubuntu-latest
     steps:
@@ -228,7 +251,7 @@ jobs:
           # Our test suite includes some screenshot tests with unusual diacritics, which are
           # supposed to be covered by STIXGeneral.
           tools: fonts-stix
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           repository: matrix-org/matrix-react-sdk
       - uses: actions/setup-node@v3
@@ -259,6 +282,7 @@ jobs:
           TMPDIR: ${{ runner.temp }}
 
   element-web-pinecone:
+    if: ${{ false }} # disable for now, as Cypress has been replaced by Playwright
     timeout-minutes: 120
     runs-on: ubuntu-latest
     steps:
@@ -267,7 +291,7 @@ jobs:
           # Our test suite includes some screenshot tests with unusual diacritics, which are
           # supposed to be covered by STIXGeneral.
           tools: fonts-stix
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           repository: matrix-org/matrix-react-sdk
       - uses: actions/setup-node@v3

.gitignore

@@ -5,6 +5,7 @@
 
 # Allow GitHub config
 !.github
+!.forgejo
 
 # Downloads
 /.downloads
@@ -78,3 +79,6 @@ build
 
 # golang workspaces
 go.work*
+
+# helm chart
+helm/dendrite/charts/

.golangci.yml

@@ -6,7 +6,7 @@ run:
   concurrency: 4
 
   # timeout for analysis, e.g. 30s, 5m, default is 1m
-  deadline: 30m
+  timeout: 5m
 
   # exit code when at least one issue was found, default is 1
   issues-exit-code: 1
@@ -18,24 +18,6 @@ run:
   #build-tags:
   #  - mytag
 
-  # which dirs to skip: they won't be analyzed;
-  # can use regexp here: generated.*, regexp is applied on full path;
-  # default value is empty list, but next dirs are always skipped independently
-  # from this option's value:
-  #   	vendor$, third_party$, testdata$, examples$, Godeps$, builtin$
-  skip-dirs:
-    - bin
-    - docs
-
-  # which files to skip: they will be analyzed, but issues from them
-  # won't be reported. Default value is empty list, but there is
-  # no need to include all autogenerated files, we confidently recognize
-  # autogenerated files. If it's not please let us know.
-  skip-files:
-    - ".*\\.md$"
-    - ".*\\.sh$"
-    - "^cmd/syncserver-integration-tests/testdata.go$"
-
   # by default isn't set. If set we pass it to "go list -mod={option}". From "go help modules":
   # If invoked with -mod=readonly, the go command is disallowed from the implicit
   # automatic updating of go.mod described above. Instead, it fails when any changes
@@ -50,7 +32,8 @@ run:
 # output configuration options
 output:
   # colored-line-number|line-number|json|tab|checkstyle|code-climate, default is "colored-line-number"
-  format: colored-line-number
+  formats:
+    - format: colored-line-number
 
   # print lines of code with issue, default is true
   print-issued-lines: true
@@ -79,9 +62,8 @@ linters-settings:
     # see https://github.com/kisielk/errcheck#excluding-functions for details
     #exclude: /path/to/file.txt
   govet:
-    # report about shadowed variables
+    enable:
-    check-shadowing: true
+      - shadow
-
     # settings per analyzer
     settings:
       printf: # analyzer name, run `go tool vet help` to see all analyzers
@@ -180,7 +162,6 @@ linters-settings:
 linters:
   enable:
     - errcheck
-    - goconst
     - gocyclo
     - goimports # Does everything gofmt does
     - gosimple
@@ -211,12 +192,31 @@ linters:
     - stylecheck
     - typecheck # Should turn back on soon
     - unconvert # Should turn back on soon
+    - goconst # Slightly annoying, as it reports "issues" in SQL statements
   disable-all: false
   presets:
   fast: false
 
 
 issues:
+  # which files to skip: they will be analyzed, but issues from them
+  # won't be reported. Default value is empty list, but there is
+  # no need to include all autogenerated files, we confidently recognize
+  # autogenerated files. If it's not please let us know.
+  exclude-files:
+    - ".*\\.md$"
+    - ".*\\.sh$"
+    - "^cmd/syncserver-integration-tests/testdata.go$"
+
+  # which dirs to skip: they won't be analyzed;
+  # can use regexp here: generated.*, regexp is applied on full path;
+  # default value is empty list, but next dirs are always skipped independently
+  # from this option's value:
+  #   	vendor$, third_party$, testdata$, examples$, Godeps$, builtin$
+  exclude-dirs:
+    - bin
+    - docs
+
   # List of regexps of issue texts to exclude, empty list by default.
   # But independently from this option we use default exclude patterns,
   # it can be disabled by `exclude-use-default: false`. To list all

CHANGES.md

@@ -1,5 +1,185 @@
 # Changelog
 
+## Dendrite 0.13.7 (2024-04-09)
+
+### Fixes
+
+- Fixed an issue where the displayname/avatar of an invited user was replaced with the inviter's details
+- Improved server startup performance by avoiding unnecessary room ACL queries
+  - This change reduces memory footprint as it caches ACL regex patterns once instead of for each room
+  - Unnecessary Relay related queries have been removed. **Note**: To use relays, you now need to explicitly enable them using the `federation_api.enable_relays` config
+- Fixed space summaries over federation
+- Improved usage of external NATS JetStream by reusing existing connections instead of opening new ones unnecessarily
+
+### Features
+
+- Modernized Appservices (contributed by [tulir](https://github.com/tulir))
+- Added event reporting with Synapse Admin endpoints for querying them
+- Updated dependencies
+
+## Dendrite 0.13.6 (2024-01-26)
+
+Upgrading to this version is **highly** recommended, as it contains several QoL improvements.
+
+### Fixes
+
+- Use `AckExplicitPolicy` for JetStream consumers, so messages don't pile up in NATS
+- A rare panic when assigning a state key NID has been fixed
+- A rare panic when checking powerlevels has been fixed
+- Notary keys requests for all keys now work correctly
+- Spec compliance:
+  - Return `M_INVALID_PARAM` when querying room aliases
+  - Handle empty `from` parameter when requesting `/messages`
+  - Add CORP headers on media endpoints
+  - Remove `aliases` from `/publicRooms` responses
+  - Allow `+` in MXIDs (Contributed by [RosstheRoss](https://github.com/RosstheRoss))
+- Fixes membership transitions from `knock` to `join` in `knock_restricted` rooms
+- Incremental syncs now batch querying events (Contributed by [recht](https://github.com/recht))
+- Move `/joined_members` back to the clientAPI/roomserver, which should make bridges happier again
+- Backfilling from other servers now only uses at max 100 events instead of potentially thousands
+
+## Dendrite 0.13.5 (2023-12-12)
+
+Upgrading to this version is **highly** recommended, as it fixes several long-standing bugs in
+our CanonicalJSON implementation.
+
+### Fixes
+
+- Convert unicode escapes to lowercase (gomatrixserverlib)
+- Fix canonical json utf-16 surrogate pair detection logic (gomatrixserverlib)
+- Handle negative zero and exponential numbers in Canonical JSON verification (gomatrixserverlib)
+- Avoid logging unnecessary messages when unable to fetch server keys if multiple fetchers are used (gomatrixserverlib)
+- Issues around the device list updater have been fixed, which should ensure that there are always
+  workers available to process incoming device list updates.
+- A panic in the `/hierarchy` endpoints used for spaces has been fixed (client-server and server-server API)
+- Fixes around the way we handle database transactions (including a potential connection leak)
+- ACLs are now updated when received as outliers
+- A race condition, which could lead to bridges instantly leaving a room after joining it, between the SyncAPI and
+  Appservices has been fixed
+
+### Features
+
+- **Appservice login is now supported!**
+- Users can now kick themselves (used by some bridges)
+
+## Dendrite 0.13.4 (2023-10-25)
+
+Upgrading to this version is **highly** recommended, as it fixes a long-standing bug in the state resolution
+algorithm.
+
+### Fixes:
+
+- The "device list updater" now de-duplicates the servers to fetch devices from on startup. (This also 
+  avoids spamming the logs when shutting down.)
+- A bug in the state resolution algorithm has been fixed. This bug could result in users "being reset"
+  out of rooms and other missing state events due to calculating the wrong state.
+- A bug when setting notifications from Element Android has been fixed by implementing MSC3987
+
+### Features
+
+- Updated dependencies
+  - Internal NATS Server has been updated from v2.9.19 to v2.9.23
+
+## Dendrite 0.13.3 (2023-09-28)
+
+### Fixes:
+
+- The `user_id` query parameter when authenticating is now used correctly (contributed by [tulir](https://github.com/tulir))
+- Invitations are now correctly pushed to devices
+- A bug which could result in the corruption of `m.direct` account data has been fixed 
+
+### Features
+
+- [Sliding Sync proxy](https://github.com/matrix-org/sliding-sync) can be configured in the `/.well-known/matrix/client` response
+- Room version 11 is now supported
+- Clients can request the `federation` `event_format` when creating filters
+- Many under the hood improvements for [MSC4014: Pseudonymous Identities](https://github.com/matrix-org/matrix-spec-proposals/blob/kegan/pseudo-ids/proposals/4014-pseudonymous-identities.md)
+
+### Other
+
+- Dendrite now requires Go 1.20 if building from source
+
+## Dendrite 0.13.2 (2023-08-23)
+
+### Fixes:
+
+- Migrations in SQLite are now prepared on the correct context (transaction or database)
+- The `InputRoomEvent` stream now has a maximum age of 24h, which should help with slow start up times of NATS JetStream (contributed by [neilalexander](https://github.com/neilalexander))
+- Event size checks are more in line with Synapse
+- Requests to `/messages` have been optimized, possibly reducing database round trips
+- Re-add the revision of Dendrite when building from source (Note: This only works if git is installed)
+- Getting local members to notify has been optimized, which should significantly reduce memory allocation and cache usage
+- When getting queried about user profiles, we now return HTTP404 if the user/profiles does not exist
+- Background federated joins should now be fixed and not timeout after a short time
+- Database connections are now correctly re-used
+- Restored the old behavior of the `/purgeRoom` admin endpoint (does not evacuate the room before purging)
+- Don't expose information about the system when trying to download files that don't exist
+
+### Features
+
+- Further improvements and fixes for [MSC4014: Pseudonymous Identities](https://github.com/matrix-org/matrix-spec-proposals/blob/kegan/pseudo-ids/proposals/4014-pseudonymous-identities.md)
+  - Lookup correct prev events in the sync API
+  - Populate `prev_sender` correctly in the sync API
+  - Event federation should work better
+- Added new `dendrite_up` Prometheus metric, containing the version of Dendrite
+- Space summaries ([MSC2946](https://github.com/matrix-org/matrix-spec-proposals/pull/2946)) have been moved from MSC to being natively supported
+- For easier issue investigation, logs for application services now contain the application service ID (contributed by [maxberger](https://github.com/maxberger))
+- The default room version to use when creating rooms can now be configured using `room_server.default_room_version`
+
+## Dendrite 0.13.1 (2023-07-06)
+
+This releases fixes a long-standing "off-by-one" error which could result in state resets. Upgrading to this version is **highly** recommended.
+
+When deduplicating state events, we were checking if the event in question was already in a state snapshot. If it was in a previous state snapshot, we would 
+then remove it from the list of events to store. If this happened, we were, unfortunately, skipping the next event to check. This resulted in 
+events getting stored in state snapshots where they may not be needed. When we now compared two of those state snapshots, one of them
+contained the skipped event, while the other didn't. This difference possibly shouldn't exist, resulting in unexpected state resets and explains
+reports of missing state events as well.
+
+Rooms where a state reset occurred earlier should, hopefully, reconcile over time.
+
+### Fixes:
+
+- A long-standing "off-by-one" error has been fixed, which could result in state resets
+- Roomserver Prometheus Metrics are available again
+
+### Features
+
+- Updated dependencies
+  - Internal NATS Server has been updated from v2.9.15 to v2.9.19
+
+## Dendrite 0.13.0 (2023-06-30)
+
+### Features
+
+- Results in responses to `/search` now highlight words more accurately and not only the search terms as before
+- Support for connecting to appservices listening on unix sockets has been added (contributed by [cyberb](https://github.com/cyberb))
+- Admin APIs for token authenticated registration have been added (contributed by [santhoshivan23](https://github.com/santhoshivan23))
+- Initial support for [MSC4014: Pseudonymous Identities](https://github.com/matrix-org/matrix-spec-proposals/blob/kegan/pseudo-ids/proposals/4014-pseudonymous-identities.md)
+  - This is **highly experimental**, things like changing usernames/avatars, inviting users, upgrading rooms isn't working
+
+### Fixes
+
+- `m.upload.size` is now optional, finally allowing uploads with unlimited file size
+- A bug while resolving server names has been fixed (contributed by [anton-molyboha](https://github.com/anton-molyboha))
+- Application services should only receive one invitation instead of 2 (or worse), which could result in state resets previously
+- Several admin endpoints are now using `POST` instead of `GET`
+- `/delete_devices` now uses user-interactive authentication
+- Several "membership" (e.g `/kick`, `/ban`) endpoints are using less heavy database queries to check if the user is allowed to perform this action
+- `/3pid` endpoints are now available on `/v3` instead of the `/unstable` prefix
+- Upgrading rooms ignores state events of other users, which could result in failed upgrades before
+- Uploading key backups with a wrong version now returns `M_WRONG_ROOM_KEYS_VERSION`
+- A potential state reset when joining the same room multiple times in short sequence has been fixed
+- A bug where we returned the full event as `redacted_because` in redaction events has been fixed
+- The `displayname` and `avatar_url` can now be set to empty strings
+- Unsafe hotserving of files has been fixed (contributed by [joshqou](https://github.com/joshqou))
+- Joining new rooms would potentially return "redacted" events, due to history visibility not being set correctly, this could result in events being rejected 
+- Backfilling resulting in `unsuported room version ''` should now be solved
+
+### Other
+
+- Huge refactoring of Dendrite and gomatrixserverlib
+
 ## Dendrite 0.12.0 (2023-03-13)
 
 ### Features

Dockerfile

@@ -3,8 +3,9 @@
 #
 # base installs required dependencies and runs go mod download to cache dependencies
 #
-FROM --platform=${BUILDPLATFORM} docker.io/golang:1.20-alpine AS base
+# Pinned to alpine3.18 until https://github.com/mattn/go-sqlite3/issues/1164 is solved
-RUN apk --update --no-cache add bash build-base curl
+FROM --platform=${BUILDPLATFORM} docker.io/golang:1.21-alpine3.18 AS base
+RUN apk --update --no-cache add bash build-base curl git
 
 #
 # build creates all needed binaries
@@ -13,7 +14,6 @@ FROM --platform=${BUILDPLATFORM} base AS build
 WORKDIR /src
 ARG TARGETOS
 ARG TARGETARCH
-ARG FLAGS
 RUN --mount=target=. \
     --mount=type=cache,target=/root/.cache/go-build \
     --mount=type=cache,target=/go/pkg/mod \
@@ -21,7 +21,7 @@ RUN --mount=target=. \
     GOARCH="$TARGETARCH" \
     GOOS="linux" \
     CGO_ENABLED=$([ "$TARGETARCH" = "$USERARCH" ] && echo "1" || echo "0") \
-    go build -v -ldflags="${FLAGS}" -trimpath -o /out/ ./cmd/...
+    go build -v -trimpath -o /out/ ./cmd/...
 
 
 #

README.md

@@ -36,7 +36,7 @@ If you have further questions, please take a look at [our FAQ](docs/FAQ.md) or j
 See the [Planning your Installation](https://matrix-org.github.io/dendrite/installation/planning) page for
 more information on requirements.
 
-To build Dendrite, you will need Go 1.18 or later.
+To build Dendrite, you will need Go 1.20 or later.
 
 For a usable federating Dendrite deployment, you will also need:
 

appservice/api/query.go

@@ -82,9 +82,17 @@ type UserIDExistsResponse struct {
 }
 
 const (
-	ASProtocolPath = "/_matrix/app/unstable/thirdparty/protocol/"
+	ASProtocolLegacyPath        = "/_matrix/app/unstable/thirdparty/protocol/"
-	ASUserPath     = "/_matrix/app/unstable/thirdparty/user"
+	ASUserLegacyPath            = "/_matrix/app/unstable/thirdparty/user"
-	ASLocationPath = "/_matrix/app/unstable/thirdparty/location"
+	ASLocationLegacyPath        = "/_matrix/app/unstable/thirdparty/location"
+	ASRoomAliasExistsLegacyPath = "/rooms/"
+	ASUserExistsLegacyPath      = "/users/"
+
+	ASProtocolPath        = "/_matrix/app/v1/thirdparty/protocol/"
+	ASUserPath            = "/_matrix/app/v1/thirdparty/user"
+	ASLocationPath        = "/_matrix/app/v1/thirdparty/location"
+	ASRoomAliasExistsPath = "/_matrix/app/v1/rooms/"
+	ASUserExistsPath      = "/_matrix/app/v1/users/"
 )
 
 type ProtocolRequest struct {

appservice/appservice_test.go

@@ -14,7 +14,18 @@ import (
 	"testing"
 	"time"
 
+	"github.com/matrix-org/dendrite/clientapi"
+	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
+	"github.com/matrix-org/dendrite/federationapi/statistics"
+	"github.com/matrix-org/dendrite/internal/httputil"
+	"github.com/matrix-org/dendrite/roomserver/types"
+	"github.com/matrix-org/dendrite/syncapi"
+	uapi "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/gomatrixserverlib"
+	"github.com/matrix-org/util"
+	"github.com/nats-io/nats.go"
 	"github.com/stretchr/testify/assert"
+	"github.com/tidwall/gjson"
 
 	"github.com/matrix-org/dendrite/appservice"
 	"github.com/matrix-org/dendrite/appservice/api"
@@ -32,6 +43,10 @@ import (
 	"github.com/matrix-org/dendrite/test/testrig"
 )
 
+var testIsBlacklistedOrBackingOff = func(s spec.ServerName) (*statistics.ServerStatistics, error) {
+	return &statistics.ServerStatistics{}, nil
+}
+
 func TestAppserviceInternalAPI(t *testing.T) {
 
 	// Set expected results
@@ -134,7 +149,6 @@ func TestAppserviceInternalAPI(t *testing.T) {
 		}
 		as.CreateHTTPClient(cfg.AppServiceAPI.DisableTLSValidation)
 		cfg.AppServiceAPI.Derived.ApplicationServices = []config.ApplicationService{*as}
-
 		t.Cleanup(func() {
 			ctx.ShutdownDendrite()
 			ctx.WaitForShutdown()
@@ -144,7 +158,8 @@ func TestAppserviceInternalAPI(t *testing.T) {
 		natsInstance := jetstream.NATSInstance{}
 		cm := sqlutil.NewConnectionManager(ctx, cfg.Global.DatabaseOptions)
 		rsAPI := roomserver.NewInternalAPI(ctx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		usrAPI := userapi.NewInternalAPI(ctx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI.SetFederationAPI(nil, nil)
+		usrAPI := userapi.NewInternalAPI(ctx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 		asAPI := appservice.NewInternalAPI(ctx, cfg, &natsInstance, usrAPI, rsAPI)
 
 		runCases(t, asAPI)
@@ -238,7 +253,8 @@ func TestAppserviceInternalAPI_UnixSocket_Simple(t *testing.T) {
 	natsInstance := jetstream.NATSInstance{}
 	cm := sqlutil.NewConnectionManager(ctx, cfg.Global.DatabaseOptions)
 	rsAPI := roomserver.NewInternalAPI(ctx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-	usrAPI := userapi.NewInternalAPI(ctx, cfg, cm, &natsInstance, rsAPI, nil)
+	rsAPI.SetFederationAPI(nil, nil)
+	usrAPI := userapi.NewInternalAPI(ctx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 	asAPI := appservice.NewInternalAPI(ctx, cfg, &natsInstance, usrAPI, rsAPI)
 
 	t.Run("UserIDExists", func(t *testing.T) {
@@ -377,7 +393,7 @@ func TestRoomserverConsumerOneInvite(t *testing.T) {
 		// Create required internal APIs
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, natsInstance, caches, caching.DisableMetrics)
 		rsAPI.SetFederationAPI(nil, nil)
-		usrAPI := userapi.NewInternalAPI(processCtx, cfg, cm, natsInstance, rsAPI, nil)
+		usrAPI := userapi.NewInternalAPI(processCtx, cfg, cm, natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 		// start the consumer
 		appservice.NewInternalAPI(processCtx, cfg, natsInstance, usrAPI, rsAPI)
 
@@ -401,3 +417,190 @@ func TestRoomserverConsumerOneInvite(t *testing.T) {
 		close(evChan)
 	})
 }
+
+// Note: If this test panics, it is because we timed out waiting for the
+// join event to come through to the appservice and we close the DB/shutdown Dendrite. This makes the
+// syncAPI unhappy, as it is unable to write to the database.
+func TestOutputAppserviceEvent(t *testing.T) {
+	alice := test.NewUser(t)
+	bob := test.NewUser(t)
+
+	test.WithAllDatabases(t, func(t *testing.T, dbType test.DBType) {
+		cfg, processCtx, closeDB := testrig.CreateConfig(t, dbType)
+		defer closeDB()
+		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
+		natsInstance := &jetstream.NATSInstance{}
+
+		evChan := make(chan struct{})
+
+		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
+		// Create required internal APIs
+		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, natsInstance, caches, caching.DisableMetrics)
+		rsAPI.SetFederationAPI(nil, nil)
+
+		// Create the router, so we can hit `/joined_members`
+		routers := httputil.NewRouters()
+
+		accessTokens := map[*test.User]userDevice{
+			bob: {},
+		}
+
+		usrAPI := userapi.NewInternalAPI(processCtx, cfg, cm, natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
+		clientapi.AddPublicRoutes(processCtx, routers, cfg, natsInstance, nil, rsAPI, nil, nil, nil, usrAPI, nil, nil, caching.DisableMetrics)
+		createAccessTokens(t, accessTokens, usrAPI, processCtx.Context(), routers)
+
+		room := test.NewRoom(t, alice)
+
+		// Invite Bob
+		room.CreateAndInsert(t, alice, spec.MRoomMember, map[string]interface{}{
+			"membership": "invite",
+		}, test.WithStateKey(bob.ID))
+
+		// create a dummy AS url, handling the events
+		srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			var txn consumers.ApplicationServiceTransaction
+			err := json.NewDecoder(r.Body).Decode(&txn)
+			if err != nil {
+				t.Fatal(err)
+			}
+			for _, ev := range txn.Events {
+				if ev.Type != spec.MRoomMember {
+					continue
+				}
+				if ev.StateKey != nil && *ev.StateKey == bob.ID {
+					membership := gjson.GetBytes(ev.Content, "membership").Str
+					t.Logf("Processing membership: %s", membership)
+					switch membership {
+					case spec.Invite:
+						// Accept the invite
+						joinEv := room.CreateAndInsert(t, bob, spec.MRoomMember, map[string]interface{}{
+							"membership": "join",
+						}, test.WithStateKey(bob.ID))
+
+						if err := rsapi.SendEvents(context.Background(), rsAPI, rsapi.KindNew, []*types.HeaderedEvent{joinEv}, "test", "test", "test", nil, false); err != nil {
+							t.Fatalf("failed to send events: %v", err)
+						}
+					case spec.Join: // the AS has received the join event, now hit `/joined_members` to validate that
+						rec := httptest.NewRecorder()
+						req := httptest.NewRequest(http.MethodGet, "/_matrix/client/v3/rooms/"+room.ID+"/joined_members", nil)
+						req.Header.Set("Authorization", "Bearer "+accessTokens[bob].accessToken)
+						routers.Client.ServeHTTP(rec, req)
+						if rec.Code != http.StatusOK {
+							t.Fatalf("expected HTTP 200, got %d: %s", rec.Code, rec.Body.String())
+						}
+
+						// Both Alice and Bob should be joined. If not, we have a race condition
+						if !gjson.GetBytes(rec.Body.Bytes(), "joined."+alice.ID).Exists() {
+							t.Errorf("Alice is not joined to the room") // in theory should not happen
+						}
+						if !gjson.GetBytes(rec.Body.Bytes(), "joined."+bob.ID).Exists() {
+							t.Errorf("Bob is not joined to the room")
+						}
+						evChan <- struct{}{}
+					default:
+						t.Fatalf("Unexpected membership: %s", membership)
+					}
+				}
+			}
+		}))
+		defer srv.Close()
+
+		as := &config.ApplicationService{
+			ID:              "someID",
+			URL:             srv.URL,
+			ASToken:         "",
+			HSToken:         "",
+			SenderLocalpart: "senderLocalPart",
+			NamespaceMap: map[string][]config.ApplicationServiceNamespace{
+				"users":   {{RegexpObject: regexp.MustCompile(bob.ID)}},
+				"aliases": {{RegexpObject: regexp.MustCompile(room.ID)}},
+			},
+		}
+		as.CreateHTTPClient(cfg.AppServiceAPI.DisableTLSValidation)
+
+		// Create a dummy application service
+		cfg.AppServiceAPI.Derived.ApplicationServices = []config.ApplicationService{*as}
+
+		// Prepare AS Streams on the old topic to validate that they get deleted
+		jsCtx, _ := natsInstance.Prepare(processCtx, &cfg.Global.JetStream)
+
+		token := jetstream.Tokenise(as.ID)
+		if err := jetstream.JetStreamConsumer(
+			processCtx.Context(), jsCtx, cfg.Global.JetStream.Prefixed(jetstream.OutputRoomEvent),
+			cfg.Global.JetStream.Durable("Appservice_"+token),
+			50, // maximum number of events to send in a single transaction
+			func(ctx context.Context, msgs []*nats.Msg) bool {
+				return true
+			},
+		); err != nil {
+			t.Fatal(err)
+		}
+
+		// Start the syncAPI to have `/joined_members` available
+		syncapi.AddPublicRoutes(processCtx, routers, cfg, cm, natsInstance, usrAPI, rsAPI, caches, caching.DisableMetrics)
+
+		// start the consumer
+		appservice.NewInternalAPI(processCtx, cfg, natsInstance, usrAPI, rsAPI)
+
+		// At this point, the old JetStream consumers should be deleted
+		for consumer := range jsCtx.Consumers(cfg.Global.JetStream.Prefixed(jetstream.OutputRoomEvent)) {
+			if consumer.Name == cfg.Global.JetStream.Durable("Appservice_"+token)+"Pull" {
+				t.Fatalf("Consumer still exists")
+			}
+		}
+
+		// Create the room, this triggers the AS to receive an invite for Bob.
+		if err := rsapi.SendEvents(context.Background(), rsAPI, rsapi.KindNew, room.Events(), "test", "test", "test", nil, false); err != nil {
+			t.Fatalf("failed to send events: %v", err)
+		}
+
+		select {
+		// Pretty generous timeout duration...
+		case <-time.After(time.Millisecond * 1000): // wait for the AS to process the events
+			t.Errorf("Timed out waiting for join event")
+		case <-evChan:
+		}
+		close(evChan)
+	})
+}
+
+type userDevice struct {
+	accessToken string
+	deviceID    string
+	password    string
+}
+
+func createAccessTokens(t *testing.T, accessTokens map[*test.User]userDevice, userAPI uapi.UserInternalAPI, ctx context.Context, routers httputil.Routers) {
+	t.Helper()
+	for u := range accessTokens {
+		localpart, serverName, _ := gomatrixserverlib.SplitID('@', u.ID)
+		userRes := &uapi.PerformAccountCreationResponse{}
+		password := util.RandomString(8)
+		if err := userAPI.PerformAccountCreation(ctx, &uapi.PerformAccountCreationRequest{
+			AccountType: u.AccountType,
+			Localpart:   localpart,
+			ServerName:  serverName,
+			Password:    password,
+		}, userRes); err != nil {
+			t.Errorf("failed to create account: %s", err)
+		}
+		req := test.NewRequest(t, http.MethodPost, "/_matrix/client/v3/login", test.WithJSONBody(t, map[string]interface{}{
+			"type": authtypes.LoginTypePassword,
+			"identifier": map[string]interface{}{
+				"type": "m.id.user",
+				"user": u.ID,
+			},
+			"password": password,
+		}))
+		rec := httptest.NewRecorder()
+		routers.Client.ServeHTTP(rec, req)
+		if rec.Code != http.StatusOK {
+			t.Fatalf("failed to login: %s", rec.Body.String())
+		}
+		accessTokens[u] = userDevice{
+			accessToken: gjson.GetBytes(rec.Body.Bytes(), "access_token").String(),
+			deviceID:    gjson.GetBytes(rec.Body.Bytes(), "device_id").String(),
+			password:    password,
+		}
+	}
+}

appservice/consumers/roomserver.go

@@ -71,13 +71,14 @@ func NewOutputRoomEventConsumer(
 		ctx:       process.Context(),
 		cfg:       cfg,
 		jetstream: js,
-		topic:     cfg.Matrix.JetStream.Prefixed(jetstream.OutputRoomEvent),
+		topic:     cfg.Matrix.JetStream.Prefixed(jetstream.OutputAppserviceEvent),
 		rsAPI:     rsAPI,
 	}
 }
 
 // Start consuming from room servers
 func (s *OutputRoomEventConsumer) Start() error {
+	durableNames := make([]string, 0, len(s.cfg.Derived.ApplicationServices))
 	for _, as := range s.cfg.Derived.ApplicationServices {
 		appsvc := as
 		state := &appserviceState{
@@ -95,6 +96,15 @@ func (s *OutputRoomEventConsumer) Start() error {
 		); err != nil {
 			return fmt.Errorf("failed to create %q consumer: %w", token, err)
 		}
+		durableNames = append(durableNames, s.cfg.Matrix.JetStream.Durable("Appservice_"+token))
+	}
+	// Cleanup any consumers still existing on the OutputRoomEvent stream
+	// to avoid messages not being deleted
+	for _, consumerName := range durableNames {
+		err := s.jetstream.DeleteConsumer(s.cfg.Matrix.JetStream.Prefixed(jetstream.OutputRoomEvent), consumerName+"Pull")
+		if err != nil && err != nats.ErrConsumerNotFound {
+			return err
+		}
 	}
 	return nil
 }
@@ -128,7 +138,7 @@ func (s *OutputRoomEventConsumer) onMessage(
 			if len(output.NewRoomEvent.AddsStateEventIDs) > 0 {
 				newEventID := output.NewRoomEvent.Event.EventID()
 				eventsReq := &api.QueryEventsByIDRequest{
-					RoomID:   output.NewRoomEvent.Event.RoomID(),
+					RoomID:   output.NewRoomEvent.Event.RoomID().String(),
 					EventIDs: make([]string, 0, len(output.NewRoomEvent.AddsStateEventIDs)),
 				}
 				eventsRes := &api.QueryEventsByIDResponse{}
@@ -196,13 +206,21 @@ func (s *OutputRoomEventConsumer) sendEvents(
 	}
 
 	// Send the transaction to the appservice.
-	// https://matrix.org/docs/spec/application_service/r0.1.2#put-matrix-app-v1-transactions-txnid
+	// https://spec.matrix.org/v1.9/application-service-api/#pushing-events
-	address := fmt.Sprintf("%s/transactions/%s?access_token=%s", state.RequestUrl(), txnID, url.QueryEscape(state.HSToken))
+	path := "_matrix/app/v1/transactions"
+	if s.cfg.LegacyPaths {
+		path = "transactions"
+	}
+	address := fmt.Sprintf("%s/%s/%s", state.RequestUrl(), path, txnID)
+	if s.cfg.LegacyAuth {
+		address += "?access_token=" + url.QueryEscape(state.HSToken)
+	}
 	req, err := http.NewRequestWithContext(ctx, "PUT", address, bytes.NewBuffer(transaction))
 	if err != nil {
 		return err
 	}
 	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", state.HSToken))
 	resp, err := state.HTTPClient.Do(req)
 	if err != nil {
 		return state.backoffAndPause(err)
@@ -236,11 +254,7 @@ func (s *appserviceState) backoffAndPause(err error) error {
 // TODO: This should be cached, see https://github.com/matrix-org/dendrite/issues/1682
 func (s *OutputRoomEventConsumer) appserviceIsInterestedInEvent(ctx context.Context, event *types.HeaderedEvent, appservice *config.ApplicationService) bool {
 	user := ""
-	validRoomID, err := spec.NewRoomID(event.RoomID())
+	userID, err := s.rsAPI.QueryUserIDForSender(ctx, event.RoomID(), event.SenderID())
-	if err != nil {
-		return false
-	}
-	userID, err := s.rsAPI.QueryUserIDForSender(ctx, *validRoomID, event.SenderID())
 	if err == nil {
 		user = userID.String()
 	}
@@ -250,7 +264,7 @@ func (s *OutputRoomEventConsumer) appserviceIsInterestedInEvent(ctx context.Cont
 		return false
 	case appservice.IsInterestedInUserID(user):
 		return true
-	case appservice.IsInterestedInRoomID(event.RoomID()):
+	case appservice.IsInterestedInRoomID(event.RoomID().String()):
 		return true
 	}
 
@@ -261,7 +275,7 @@ func (s *OutputRoomEventConsumer) appserviceIsInterestedInEvent(ctx context.Cont
 	}
 
 	// Check all known room aliases of the room the event came from
-	queryReq := api.GetAliasesForRoomIDRequest{RoomID: event.RoomID()}
+	queryReq := api.GetAliasesForRoomIDRequest{RoomID: event.RoomID().String()}
 	var queryRes api.GetAliasesForRoomIDResponse
 	if err := s.rsAPI.GetAliasesForRoomID(ctx, &queryReq, &queryRes); err == nil {
 		for _, alias := range queryRes.Aliases {
@@ -272,7 +286,7 @@ func (s *OutputRoomEventConsumer) appserviceIsInterestedInEvent(ctx context.Cont
 	} else {
 		log.WithFields(log.Fields{
 			"appservice": appservice.ID,
-			"room_id":    event.RoomID(),
+			"room_id":    event.RoomID().String(),
 		}).WithError(err).Errorf("Unable to get aliases for room")
 	}
 
@@ -288,7 +302,7 @@ func (s *OutputRoomEventConsumer) appserviceJoinedAtEvent(ctx context.Context, e
 	// until we have a lighter way of checking the state before the event that
 	// doesn't involve state res, then this is probably OK.
 	membershipReq := &api.QueryMembershipsForRoomRequest{
-		RoomID:     event.RoomID(),
+		RoomID:     event.RoomID().String(),
 		JoinedOnly: true,
 	}
 	membershipRes := &api.QueryMembershipsForRoomResponse{}
@@ -317,7 +331,7 @@ func (s *OutputRoomEventConsumer) appserviceJoinedAtEvent(ctx context.Context, e
 	} else {
 		log.WithFields(log.Fields{
 			"appservice": appservice.ID,
-			"room_id":    event.RoomID(),
+			"room_id":    event.RoomID().String(),
 		}).WithError(err).Errorf("Unable to get membership for room")
 	}
 	return false

appservice/query/query.go

@@ -19,10 +19,10 @@ package query
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"io"
 	"net/http"
 	"net/url"
-	"strings"
 	"sync"
 
 	log "github.com/sirupsen/logrus"
@@ -32,9 +32,6 @@ import (
 	"github.com/matrix-org/dendrite/setup/config"
 )
 
-const roomAliasExistsPath = "/rooms/"
-const userIDExistsPath = "/users/"
-
 // AppServiceQueryAPI is an implementation of api.AppServiceQueryAPI
 type AppServiceQueryAPI struct {
 	Cfg           *config.AppServiceAPI
@@ -55,14 +52,23 @@ func (a *AppServiceQueryAPI) RoomAliasExists(
 	// Determine which application service should handle this request
 	for _, appservice := range a.Cfg.Derived.ApplicationServices {
 		if appservice.URL != "" && appservice.IsInterestedInRoomAlias(request.Alias) {
+			path := api.ASRoomAliasExistsPath
+			if a.Cfg.LegacyPaths {
+				path = api.ASRoomAliasExistsLegacyPath
+			}
 			// The full path to the rooms API, includes hs token
-			URL, err := url.Parse(appservice.RequestUrl() + roomAliasExistsPath)
+			URL, err := url.Parse(appservice.RequestUrl() + path)
 			if err != nil {
 				return err
 			}
 
 			URL.Path += request.Alias
-			apiURL := URL.String() + "?access_token=" + appservice.HSToken
+			if a.Cfg.LegacyAuth {
+				q := URL.Query()
+				q.Set("access_token", appservice.HSToken)
+				URL.RawQuery = q.Encode()
+			}
+			apiURL := URL.String()
 
 			// Send a request to each application service. If one responds that it has
 			// created the room, immediately return.
@@ -70,6 +76,7 @@ func (a *AppServiceQueryAPI) RoomAliasExists(
 			if err != nil {
 				return err
 			}
+			req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", appservice.HSToken))
 			req = req.WithContext(ctx)
 
 			resp, err := appservice.HTTPClient.Do(req)
@@ -123,12 +130,21 @@ func (a *AppServiceQueryAPI) UserIDExists(
 	for _, appservice := range a.Cfg.Derived.ApplicationServices {
 		if appservice.URL != "" && appservice.IsInterestedInUserID(request.UserID) {
 			// The full path to the rooms API, includes hs token
-			URL, err := url.Parse(appservice.RequestUrl() + userIDExistsPath)
+			path := api.ASUserExistsPath
+			if a.Cfg.LegacyPaths {
+				path = api.ASUserExistsLegacyPath
+			}
+			URL, err := url.Parse(appservice.RequestUrl() + path)
 			if err != nil {
 				return err
 			}
 			URL.Path += request.UserID
-			apiURL := URL.String() + "?access_token=" + appservice.HSToken
+			if a.Cfg.LegacyAuth {
+				q := URL.Query()
+				q.Set("access_token", appservice.HSToken)
+				URL.RawQuery = q.Encode()
+			}
+			apiURL := URL.String()
 
 			// Send a request to each application service. If one responds that it has
 			// created the user, immediately return.
@@ -136,6 +152,7 @@ func (a *AppServiceQueryAPI) UserIDExists(
 			if err != nil {
 				return err
 			}
+			req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", appservice.HSToken))
 			resp, err := appservice.HTTPClient.Do(req.WithContext(ctx))
 			if resp != nil {
 				defer func() {
@@ -176,26 +193,23 @@ type thirdpartyResponses interface {
 	api.ASProtocolResponse | []api.ASUserResponse | []api.ASLocationResponse
 }
 
-func requestDo[T thirdpartyResponses](client *http.Client, url string, response *T) (err error) {
+func requestDo[T thirdpartyResponses](as *config.ApplicationService, url string, response *T) error {
-	origURL := url
+	req, err := http.NewRequest(http.MethodGet, url, nil)
-	// try v1 and unstable appservice endpoints
-	for _, version := range []string{"v1", "unstable"} {
-		var resp *http.Response
-		var body []byte
-		asURL := strings.Replace(origURL, "unstable", version, 1)
-		resp, err = client.Get(asURL)
 	if err != nil {
-			continue
+		return err
+	}
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", as.HSToken))
+	resp, err := as.HTTPClient.Do(req)
+	if err != nil {
+		return err
 	}
 	defer resp.Body.Close() // nolint: errcheck
-		body, err = io.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
-			continue
+		return err
 	}
 	return json.Unmarshal(body, &response)
 }
-	return err
-}
 
 func (a *AppServiceQueryAPI) Locations(
 	ctx context.Context,
@@ -207,17 +221,23 @@ func (a *AppServiceQueryAPI) Locations(
 		return err
 	}
 
+	path := api.ASLocationPath
+	if a.Cfg.LegacyPaths {
+		path = api.ASLocationLegacyPath
+	}
 	for _, as := range a.Cfg.Derived.ApplicationServices {
 		var asLocations []api.ASLocationResponse
+		if a.Cfg.LegacyAuth {
 			params.Set("access_token", as.HSToken)
+		}
 
-		url := as.RequestUrl() + api.ASLocationPath
+		url := as.RequestUrl() + path
 		if req.Protocol != "" {
 			url += "/" + req.Protocol
 		}
 
-		if err := requestDo[[]api.ASLocationResponse](as.HTTPClient, url+"?"+params.Encode(), &asLocations); err != nil {
+		if err := requestDo[[]api.ASLocationResponse](&as, url+"?"+params.Encode(), &asLocations); err != nil {
-			log.WithError(err).Error("unable to get 'locations' from application service")
+			log.WithError(err).WithField("application_service", as.ID).Error("unable to get 'locations' from application service")
 			continue
 		}
 
@@ -242,17 +262,23 @@ func (a *AppServiceQueryAPI) User(
 		return err
 	}
 
+	path := api.ASUserPath
+	if a.Cfg.LegacyPaths {
+		path = api.ASUserLegacyPath
+	}
 	for _, as := range a.Cfg.Derived.ApplicationServices {
 		var asUsers []api.ASUserResponse
+		if a.Cfg.LegacyAuth {
 			params.Set("access_token", as.HSToken)
+		}
 
-		url := as.RequestUrl() + api.ASUserPath
+		url := as.RequestUrl() + path
 		if req.Protocol != "" {
 			url += "/" + req.Protocol
 		}
 
-		if err := requestDo[[]api.ASUserResponse](as.HTTPClient, url+"?"+params.Encode(), &asUsers); err != nil {
+		if err := requestDo[[]api.ASUserResponse](&as, url+"?"+params.Encode(), &asUsers); err != nil {
-			log.WithError(err).Error("unable to get 'user' from application service")
+			log.WithError(err).WithField("application_service", as.ID).Error("unable to get 'user' from application service")
 			continue
 		}
 
@@ -272,6 +298,10 @@ func (a *AppServiceQueryAPI) Protocols(
 	req *api.ProtocolRequest,
 	resp *api.ProtocolResponse,
 ) error {
+	protocolPath := api.ASProtocolPath
+	if a.Cfg.LegacyPaths {
+		protocolPath = api.ASProtocolLegacyPath
+	}
 
 	// get a single protocol response
 	if req.Protocol != "" {
@@ -289,8 +319,8 @@ func (a *AppServiceQueryAPI) Protocols(
 		response := api.ASProtocolResponse{}
 		for _, as := range a.Cfg.Derived.ApplicationServices {
 			var proto api.ASProtocolResponse
-			if err := requestDo[api.ASProtocolResponse](as.HTTPClient, as.RequestUrl()+api.ASProtocolPath+req.Protocol, &proto); err != nil {
+			if err := requestDo[api.ASProtocolResponse](&as, as.RequestUrl()+protocolPath+req.Protocol, &proto); err != nil {
-				log.WithError(err).Error("unable to get 'protocol' from application service")
+				log.WithError(err).WithField("application_service", as.ID).Error("unable to get 'protocol' from application service")
 				continue
 			}
 
@@ -319,8 +349,8 @@ func (a *AppServiceQueryAPI) Protocols(
 	for _, as := range a.Cfg.Derived.ApplicationServices {
 		for _, p := range as.Protocols {
 			var proto api.ASProtocolResponse
-			if err := requestDo[api.ASProtocolResponse](as.HTTPClient, as.RequestUrl()+api.ASProtocolPath+p, &proto); err != nil {
+			if err := requestDo[api.ASProtocolResponse](&as, as.RequestUrl()+protocolPath+p, &proto); err != nil {
-				log.WithError(err).Error("unable to get 'protocol' from application service")
+				log.WithError(err).WithField("application_service", as.ID).Error("unable to get 'protocol' from application service")
 				continue
 			}
 			existing, ok := response[p]

are-we-synapse-yet.list

@@ -945,3 +945,11 @@ rmv User can invite remote user to room with version 10
 rmv Remote user can backfill in a room with version 10
 rmv Can reject invites over federation for rooms with version 10
 rmv Can receive redactions from regular users over federation in room version 10
+rmv User can create and send/receive messages in a room with version 11
+rmv local user can join room with version 11
+rmv User can invite local user to room with version 11
+rmv remote user can join room with version 11
+rmv User can invite remote user to room with version 11
+rmv Remote user can backfill in a room with version 11
+rmv Can reject invites over federation for rooms with version 11
+rmv Can receive redactions from regular users over federation in room version 11

build/dendritejs-pinecone/main.go

@@ -38,6 +38,7 @@ import (
 	"github.com/matrix-org/dendrite/setup/jetstream"
 	"github.com/matrix-org/dendrite/setup/process"
 	"github.com/matrix-org/dendrite/userapi"
+	"github.com/matrix-org/gomatrixserverlib/spec"
 
 	"github.com/matrix-org/gomatrixserverlib"
 
@@ -190,13 +191,13 @@ func startup() {
 	serverKeyAPI := &signing.YggdrasilKeys{}
 	keyRing := serverKeyAPI.KeyRing()
 
-	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federation)
+	fedSenderAPI := federationapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, federation, rsAPI, caches, keyRing, true)
+	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federation, caching.EnableMetrics, fedSenderAPI.IsBlacklistedOrBackingOff)
 
 	asQuery := appservice.NewInternalAPI(
 		processCtx, cfg, &natsInstance, userAPI, rsAPI,
 	)
 	rsAPI.SetAppserviceAPI(asQuery)
-	fedSenderAPI := federationapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, federation, rsAPI, caches, keyRing, true)
 	rsAPI.SetFederationAPI(fedSenderAPI, keyRing)
 
 	monolith := setup.Monolith{

build/docker/Dockerfile.demo-pinecone

@@ -1,4 +1,5 @@
-FROM docker.io/golang:1.19-alpine AS base
+# Pinned to alpine3.18 until https://github.com/mattn/go-sqlite3/issues/1164 is solved
+FROM docker.io/golang:1.21-alpine3.18 AS base
 
 #
 # Needs to be separate from the main Dockerfile for OpenShift,

build/docker/Dockerfile.demo-yggdrasil

@@ -1,4 +1,5 @@
-FROM docker.io/golang:1.19-alpine AS base
+# Pinned to alpine3.18 until https://github.com/mattn/go-sqlite3/issues/1164 is solved
+FROM docker.io/golang:1.21-alpine3.18 AS base
 
 #
 # Needs to be separate from the main Dockerfile for OpenShift,

build/gobind-yggdrasil/monolith.go

@@ -216,7 +216,7 @@ func (m *DendriteMonolith) Start() {
 		processCtx, cfg, cm, &natsInstance, federation, rsAPI, caches, keyRing, true,
 	)
 
-	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federation)
+	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federation, caching.EnableMetrics, fsAPI.IsBlacklistedOrBackingOff)
 
 	asAPI := appservice.NewInternalAPI(processCtx, cfg, &natsInstance, userAPI, rsAPI)
 	rsAPI.SetAppserviceAPI(asAPI)

build/scripts/complement.sh

@@ -15,5 +15,5 @@ tar -xzf master.tar.gz
 
 # Run the tests!
 cd complement-master
-COMPLEMENT_BASE_IMAGE=complement-dendrite:latest go test -v -count=1 ./tests
+COMPLEMENT_BASE_IMAGE=complement-dendrite:latest go test -v -count=1 ./tests ./tests/csapi
 

clientapi/api/api.go

@@ -21,3 +21,11 @@ type ExtraPublicRoomsProvider interface {
 	// Rooms returns the extra rooms. This is called on-demand by clients, so cache appropriately.
 	Rooms() []fclient.PublicRoom
 }
+
+type RegistrationToken struct {
+	Token       *string `json:"token"`
+	UsesAllowed *int32  `json:"uses_allowed"`
+	Pending     *int32  `json:"pending"`
+	Completed   *int32  `json:"completed"`
+	ExpiryTime  *int64  `json:"expiry_time"`
+}

clientapi/auth/login.go

@@ -15,7 +15,6 @@
 package auth
 
 import (
-	"context"
 	"encoding/json"
 	"io"
 	"net/http"
@@ -32,8 +31,13 @@ import (
 // called after authorization has completed, with the result of the authorization.
 // If the final return value is non-nil, an error occurred and the cleanup function
 // is nil.
-func LoginFromJSONReader(ctx context.Context, r io.Reader, useraccountAPI uapi.UserLoginAPI, userAPI UserInternalAPIForLogin, cfg *config.ClientAPI) (*Login, LoginCleanupFunc, *util.JSONResponse) {
+func LoginFromJSONReader(
-	reqBytes, err := io.ReadAll(r)
+	req *http.Request,
+	useraccountAPI uapi.UserLoginAPI,
+	userAPI UserInternalAPIForLogin,
+	cfg *config.ClientAPI,
+) (*Login, LoginCleanupFunc, *util.JSONResponse) {
+	reqBytes, err := io.ReadAll(req.Body)
 	if err != nil {
 		err := &util.JSONResponse{
 			Code: http.StatusBadRequest,
@@ -57,7 +61,7 @@ func LoginFromJSONReader(ctx context.Context, r io.Reader, useraccountAPI uapi.U
 	switch header.Type {
 	case authtypes.LoginTypePassword:
 		typ = &LoginTypePassword{
-			GetAccountByPassword: useraccountAPI.QueryAccountByPassword,
+			UserAPI: useraccountAPI,
 			Config:  cfg,
 		}
 	case authtypes.LoginTypeToken:
@@ -65,6 +69,20 @@ func LoginFromJSONReader(ctx context.Context, r io.Reader, useraccountAPI uapi.U
 			UserAPI: userAPI,
 			Config:  cfg,
 		}
+	case authtypes.LoginTypeApplicationService:
+		token, err := ExtractAccessToken(req)
+		if err != nil {
+			err := &util.JSONResponse{
+				Code: http.StatusForbidden,
+				JSON: spec.MissingToken(err.Error()),
+			}
+			return nil, nil, err
+		}
+
+		typ = &LoginTypeApplicationService{
+			Config: cfg,
+			Token:  token,
+		}
 	default:
 		err := util.JSONResponse{
 			Code: http.StatusBadRequest,
@@ -73,7 +91,7 @@ func LoginFromJSONReader(ctx context.Context, r io.Reader, useraccountAPI uapi.U
 		return nil, nil, &err
 	}
 
-	return typ.LoginFromJSON(ctx, reqBytes)
+	return typ.LoginFromJSON(req.Context(), reqBytes)
 }
 
 // UserInternalAPIForLogin contains the aspects of UserAPI required for logging in.

clientapi/auth/login_application_service.go

@@ -0,0 +1,55 @@
+// Copyright 2023 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package auth
+
+import (
+	"context"
+
+	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
+	"github.com/matrix-org/dendrite/clientapi/httputil"
+	"github.com/matrix-org/dendrite/internal"
+	"github.com/matrix-org/dendrite/setup/config"
+	"github.com/matrix-org/util"
+)
+
+// LoginTypeApplicationService describes how to authenticate as an
+// application service
+type LoginTypeApplicationService struct {
+	Config *config.ClientAPI
+	Token  string
+}
+
+// Name implements Type
+func (t *LoginTypeApplicationService) Name() string {
+	return authtypes.LoginTypeApplicationService
+}
+
+// LoginFromJSON implements Type
+func (t *LoginTypeApplicationService) LoginFromJSON(
+	ctx context.Context, reqBytes []byte,
+) (*Login, LoginCleanupFunc, *util.JSONResponse) {
+	var r Login
+	if err := httputil.UnmarshalJSON(reqBytes, &r); err != nil {
+		return nil, nil, err
+	}
+
+	_, err := internal.ValidateApplicationServiceRequest(t.Config, r.Identifier.User, t.Token)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	cleanup := func(ctx context.Context, j *util.JSONResponse) {}
+	return &r, cleanup, nil
+}

clientapi/auth/login_test.go

@@ -17,7 +17,9 @@ package auth
 import (
 	"context"
 	"net/http"
+	"net/http/httptest"
 	"reflect"
+	"regexp"
 	"strings"
 	"testing"
 
@@ -35,6 +37,7 @@ func TestLoginFromJSONReader(t *testing.T) {
 	tsts := []struct {
 		Name  string
 		Body  string
+		Token string
 
 		WantUsername      string
 		WantDeviceID      string
@@ -62,6 +65,30 @@ func TestLoginFromJSONReader(t *testing.T) {
 			WantDeviceID:      "adevice",
 			WantDeletedTokens: []string{"atoken"},
 		},
+		{
+			Name: "appServiceWorksUserID",
+			Body: `{
+				"type": "m.login.application_service",
+				"identifier": { "type": "m.id.user", "user": "@alice:example.com" },
+				"device_id": "adevice"
+			}`,
+			Token: "astoken",
+
+			WantUsername: "@alice:example.com",
+			WantDeviceID: "adevice",
+		},
+		{
+			Name: "appServiceWorksLocalpart",
+			Body: `{
+				"type": "m.login.application_service",
+				"identifier": { "type": "m.id.user", "user": "alice" },
+				"device_id": "adevice"
+			}`,
+			Token: "astoken",
+
+			WantUsername: "alice",
+			WantDeviceID: "adevice",
+		},
 	}
 	for _, tst := range tsts {
 		t.Run(tst.Name, func(t *testing.T) {
@@ -72,11 +99,35 @@ func TestLoginFromJSONReader(t *testing.T) {
 						ServerName: serverName,
 					},
 				},
+				Derived: &config.Derived{
+					ApplicationServices: []config.ApplicationService{
+						{
+							ID:      "anapplicationservice",
+							ASToken: "astoken",
+							NamespaceMap: map[string][]config.ApplicationServiceNamespace{
+								"users": {
+									{
+										Exclusive:    true,
+										Regex:        "@alice:example.com",
+										RegexpObject: regexp.MustCompile("@alice:example.com"),
+									},
+								},
+							},
+						},
+					},
+				},
 			}
-			login, cleanup, err := LoginFromJSONReader(ctx, strings.NewReader(tst.Body), &userAPI, &userAPI, cfg)
+
-			if err != nil {
+			req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(tst.Body))
-				t.Fatalf("LoginFromJSONReader failed: %+v", err)
+			if tst.Token != "" {
+				req.Header.Add("Authorization", "Bearer "+tst.Token)
 			}
+
+			login, cleanup, jsonErr := LoginFromJSONReader(req, &userAPI, &userAPI, cfg)
+			if jsonErr != nil {
+				t.Fatalf("LoginFromJSONReader failed: %+v", jsonErr)
+			}
+
 			cleanup(ctx, &util.JSONResponse{Code: http.StatusOK})
 
 			if login.Username() != tst.WantUsername {
@@ -106,6 +157,7 @@ func TestBadLoginFromJSONReader(t *testing.T) {
 	tsts := []struct {
 		Name  string
 		Body  string
+		Token string
 
 		WantErrCode spec.MatrixErrorCode
 	}{
@@ -142,6 +194,45 @@ func TestBadLoginFromJSONReader(t *testing.T) {
             }`,
 			WantErrCode: spec.ErrorInvalidParam,
 		},
+		{
+			Name: "noASToken",
+			Body: `{
+				"type": "m.login.application_service",
+				"identifier": { "type": "m.id.user", "user": "@alice:example.com" },
+				"device_id": "adevice"
+			}`,
+			WantErrCode: "M_MISSING_TOKEN",
+		},
+		{
+			Name:  "badASToken",
+			Token: "badastoken",
+			Body: `{
+				"type": "m.login.application_service",
+				"identifier": { "type": "m.id.user", "user": "@alice:example.com" },
+				"device_id": "adevice"
+			}`,
+			WantErrCode: "M_UNKNOWN_TOKEN",
+		},
+		{
+			Name:  "badASNamespace",
+			Token: "astoken",
+			Body: `{
+				"type": "m.login.application_service",
+				"identifier": { "type": "m.id.user", "user": "@bob:example.com" },
+				"device_id": "adevice"
+			}`,
+			WantErrCode: "M_EXCLUSIVE",
+		},
+		{
+			Name:  "badASUserID",
+			Token: "astoken",
+			Body: `{
+				"type": "m.login.application_service",
+				"identifier": { "type": "m.id.user", "user": "@alice:wrong.example.com" },
+				"device_id": "adevice"
+			}`,
+			WantErrCode: "M_INVALID_USERNAME",
+		},
 	}
 	for _, tst := range tsts {
 		t.Run(tst.Name, func(t *testing.T) {
@@ -152,8 +243,30 @@ func TestBadLoginFromJSONReader(t *testing.T) {
 						ServerName: serverName,
 					},
 				},
+				Derived: &config.Derived{
+					ApplicationServices: []config.ApplicationService{
+						{
+							ID:      "anapplicationservice",
+							ASToken: "astoken",
+							NamespaceMap: map[string][]config.ApplicationServiceNamespace{
+								"users": {
+									{
+										Exclusive:    true,
+										Regex:        "@alice:example.com",
+										RegexpObject: regexp.MustCompile("@alice:example.com"),
+									},
+								},
+							},
+						},
+					},
+				},
 			}
-			_, cleanup, errRes := LoginFromJSONReader(ctx, strings.NewReader(tst.Body), &userAPI, &userAPI, cfg)
+			req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(tst.Body))
+			if tst.Token != "" {
+				req.Header.Add("Authorization", "Bearer "+tst.Token)
+			}
+
+			_, cleanup, errRes := LoginFromJSONReader(req, &userAPI, &userAPI, cfg)
 			if errRes == nil {
 				cleanup(ctx, nil)
 				t.Fatalf("LoginFromJSONReader err: got %+v, want code %q", errRes, tst.WantErrCode)
@@ -179,6 +292,14 @@ func (ua *fakeUserInternalAPI) QueryAccountByPassword(ctx context.Context, req *
 	return nil
 }
 
+func (ua *fakeUserInternalAPI) QueryAccountByLocalpart(ctx context.Context, req *uapi.QueryAccountByLocalpartRequest, res *uapi.QueryAccountByLocalpartResponse) error {
+	return nil
+}
+
+func (ua *fakeUserInternalAPI) PerformAccountCreation(ctx context.Context, req *uapi.PerformAccountCreationRequest, res *uapi.PerformAccountCreationResponse) error {
+	return nil
+}
+
 func (ua *fakeUserInternalAPI) PerformLoginTokenDeletion(ctx context.Context, req *uapi.PerformLoginTokenDeletionRequest, res *uapi.PerformLoginTokenDeletionResponse) error {
 	ua.DeletedTokens = append(ua.DeletedTokens, req.Token)
 	return nil

clientapi/auth/password.go

@@ -16,6 +16,9 @@ package auth
 
 import (
 	"context"
+	"database/sql"
+	"github.com/go-ldap/ldap/v3"
+	"github.com/google/uuid"
 	"net/http"
 	"strings"
 
@@ -28,8 +31,6 @@ import (
 	"github.com/matrix-org/util"
 )
 
-type GetAccountByPassword func(ctx context.Context, req *api.QueryAccountByPasswordRequest, res *api.QueryAccountByPasswordResponse) error
-
 type PasswordRequest struct {
 	Login
 	Password string `json:"password"`
@@ -37,8 +38,8 @@ type PasswordRequest struct {
 
 // LoginTypePassword implements https://matrix.org/docs/spec/client_server/r0.6.1#password-based
 type LoginTypePassword struct {
-	GetAccountByPassword GetAccountByPassword
 	Config  *config.ClientAPI
+	UserAPI api.UserLoginAPI
 }
 
 func (t *LoginTypePassword) Name() string {
@@ -59,22 +60,21 @@ func (t *LoginTypePassword) LoginFromJSON(ctx context.Context, reqBytes []byte)
 	return login, func(context.Context, *util.JSONResponse) {}, nil
 }
 
-func (t *LoginTypePassword) Login(ctx context.Context, req interface{}) (*Login, *util.JSONResponse) {
+func (t *LoginTypePassword) Login(ctx context.Context, request *PasswordRequest) (*Login, *util.JSONResponse) {
-	r := req.(*PasswordRequest)
+	fullUsername := request.Username()
-	username := r.Username()
+	if fullUsername == "" {
-	if username == "" {
 		return nil, &util.JSONResponse{
 			Code: http.StatusUnauthorized,
 			JSON: spec.BadJSON("A username must be supplied."),
 		}
 	}
-	if len(r.Password) == 0 {
+	if len(request.Password) == 0 {
 		return nil, &util.JSONResponse{
 			Code: http.StatusUnauthorized,
 			JSON: spec.BadJSON("A password must be supplied."),
 		}
 	}
-	localpart, domain, err := userutil.ParseUsernameParam(username, t.Config.Matrix)
+	username, domain, err := userutil.ParseUsernameParam(fullUsername, t.Config.Matrix)
 	if err != nil {
 		return nil, &util.JSONResponse{
 			Code: http.StatusUnauthorized,
@@ -87,12 +87,38 @@ func (t *LoginTypePassword) Login(ctx context.Context, req interface{}) (*Login,
 			JSON: spec.InvalidUsername("The server name is not known."),
 		}
 	}
-	// Squash username to all lowercase letters
+
+	var account *api.Account
+	if t.Config.Ldap.Enabled {
+		isAdmin, err := t.authenticateLdap(username, request.Password)
+		if err != nil {
+			return nil, err
+		}
+		acc, err := t.getOrCreateAccount(ctx, username, domain, isAdmin)
+		if err != nil {
+			return nil, err
+		}
+		account = acc
+	} else {
+		acc, err := t.authenticateDb(ctx, username, domain, request.Password)
+		if err != nil {
+			return nil, err
+		}
+		account = acc
+	}
+
+	// Set the user, so login.Username() can do the right thing
+	request.Identifier.User = account.UserID
+	request.User = account.UserID
+	return &request.Login, nil
+}
+
+func (t *LoginTypePassword) authenticateDb(ctx context.Context, username string, domain spec.ServerName, password string) (*api.Account, *util.JSONResponse) {
 	res := &api.QueryAccountByPasswordResponse{}
-	err = t.GetAccountByPassword(ctx, &api.QueryAccountByPasswordRequest{
+	err := t.UserAPI.QueryAccountByPassword(ctx, &api.QueryAccountByPasswordRequest{
-		Localpart:         strings.ToLower(localpart),
+		Localpart:         strings.ToLower(username),
 		ServerName:        domain,
-		PlaintextPassword: r.Password,
+		PlaintextPassword: password,
 	}, res)
 	if err != nil {
 		return nil, &util.JSONResponse{
@@ -101,13 +127,11 @@ func (t *LoginTypePassword) Login(ctx context.Context, req interface{}) (*Login,
 		}
 	}
 
-	// If we couldn't find the user by the lower cased localpart, try the provided
-	// localpart as is.
 	if !res.Exists {
-		err = t.GetAccountByPassword(ctx, &api.QueryAccountByPasswordRequest{
+		err = t.UserAPI.QueryAccountByPassword(ctx, &api.QueryAccountByPasswordRequest{
-			Localpart:         localpart,
+			Localpart:         username,
 			ServerName:        domain,
-			PlaintextPassword: r.Password,
+			PlaintextPassword: password,
 		}, res)
 		if err != nil {
 			return nil, &util.JSONResponse{
@@ -115,8 +139,6 @@ func (t *LoginTypePassword) Login(ctx context.Context, req interface{}) (*Login,
 				JSON: spec.Unknown("Unable to fetch account by password."),
 			}
 		}
-		// Technically we could tell them if the user does not exist by checking if err == sql.ErrNoRows
-		// but that would leak the existence of the user.
 		if !res.Exists {
 			return nil, &util.JSONResponse{
 				Code: http.StatusForbidden,
@@ -124,8 +146,141 @@ func (t *LoginTypePassword) Login(ctx context.Context, req interface{}) (*Login,
 			}
 		}
 	}
-	// Set the user, so login.Username() can do the right thing
+	return res.Account, nil
-	r.Identifier.User = res.Account.UserID
+}
-	r.User = res.Account.UserID
+func (t *LoginTypePassword) authenticateLdap(username, password string) (bool, *util.JSONResponse) {
-	return &r.Login, nil
+	var conn *ldap.Conn
+	conn, err := ldap.DialURL(t.Config.Ldap.Uri)
+	if err != nil {
+		return false, &util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown("unable to connect to ldap: " + err.Error()),
+		}
+	}
+	defer conn.Close()
+
+	if t.Config.Ldap.AdminBindEnabled {
+		err = conn.Bind(t.Config.Ldap.AdminBindDn, t.Config.Ldap.AdminBindPassword)
+		if err != nil {
+			return false, &util.JSONResponse{
+				Code: http.StatusInternalServerError,
+				JSON: spec.Unknown("unable to bind to ldap: " + err.Error()),
+			}
+		}
+		filter := strings.ReplaceAll(t.Config.Ldap.SearchFilter, "{username}", username)
+		searchRequest := ldap.NewSearchRequest(
+			t.Config.Ldap.BaseDn, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases,
+			0, 0, false, filter, []string{t.Config.Ldap.SearchAttribute}, nil,
+		)
+		result, err := conn.Search(searchRequest)
+		if err != nil {
+			return false, &util.JSONResponse{
+				Code: http.StatusInternalServerError,
+				JSON: spec.Unknown("unable to bind to search ldap: " + err.Error()),
+			}
+		}
+		if len(result.Entries) > 1 {
+			return false, &util.JSONResponse{
+				Code: http.StatusUnauthorized,
+				JSON: spec.BadJSON("'user' must be duplicated."),
+			}
+		}
+		if len(result.Entries) < 1 {
+			return false, &util.JSONResponse{
+				Code: http.StatusUnauthorized,
+				JSON: spec.BadJSON("'user' not found."),
+			}
+		}
+
+		userDN := result.Entries[0].DN
+		err = conn.Bind(userDN, password)
+		if err != nil {
+			return false, &util.JSONResponse{
+				Code: http.StatusUnauthorized,
+				JSON: spec.InvalidUsername(err.Error()),
+			}
+		}
+	} else {
+		bindDn := strings.ReplaceAll(t.Config.Ldap.UserBindDn, "{username}", username)
+		err = conn.Bind(bindDn, password)
+		if err != nil {
+			return false, &util.JSONResponse{
+				Code: http.StatusUnauthorized,
+				JSON: spec.InvalidUsername(err.Error()),
+			}
+		}
+	}
+
+	isAdmin, err := t.isLdapAdmin(conn, username)
+	if err != nil {
+		return false, &util.JSONResponse{
+			Code: http.StatusUnauthorized,
+			JSON: spec.InvalidUsername(err.Error()),
+		}
+	}
+	return isAdmin, nil
+}
+
+func (t *LoginTypePassword) isLdapAdmin(conn *ldap.Conn, username string) (bool, error) {
+	searchRequest := ldap.NewSearchRequest(
+		t.Config.Ldap.AdminGroupDn,
+		ldap.ScopeWholeSubtree, ldap.DerefAlways, 0, 0, false,
+		strings.ReplaceAll(t.Config.Ldap.AdminGroupFilter, "{username}", username),
+		[]string{t.Config.Ldap.AdminGroupAttribute},
+		nil)
+
+	sr, err := conn.Search(searchRequest)
+	if err != nil {
+		return false, err
+	}
+
+	if len(sr.Entries) < 1 {
+		return false, nil
+	}
+	return true, nil
+}
+
+func (t *LoginTypePassword) getOrCreateAccount(ctx context.Context, username string, domain spec.ServerName, admin bool) (*api.Account, *util.JSONResponse) {
+	var existing api.QueryAccountByLocalpartResponse
+	err := t.UserAPI.QueryAccountByLocalpart(ctx, &api.QueryAccountByLocalpartRequest{
+		Localpart:  username,
+		ServerName: domain,
+	}, &existing)
+
+	if err == nil {
+		return existing.Account, nil
+	}
+	if err != sql.ErrNoRows {
+		return nil, &util.JSONResponse{
+			Code: http.StatusUnauthorized,
+			JSON: spec.InvalidUsername(err.Error()),
+		}
+	}
+
+	accountType := api.AccountTypeUser
+	if admin {
+		accountType = api.AccountTypeAdmin
+	}
+	var created api.PerformAccountCreationResponse
+	err = t.UserAPI.PerformAccountCreation(ctx, &api.PerformAccountCreationRequest{
+		AppServiceID: "ldap",
+		Localpart:    username,
+		Password:     uuid.New().String(),
+		AccountType:  accountType,
+		OnConflict:   api.ConflictAbort,
+	}, &created)
+
+	if err != nil {
+		if _, ok := err.(*api.ErrorConflict); ok {
+			return nil, &util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: spec.UserInUse("Desired user ID is already taken."),
+			}
+		}
+		return nil, &util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown("failed to create account: " + err.Error()),
+		}
+	}
+	return created.Account, nil
 }

clientapi/auth/user_interactive.go

@@ -55,7 +55,7 @@ type LoginCleanupFunc func(context.Context, *util.JSONResponse)
 // https://matrix.org/docs/spec/client_server/r0.6.1#identifier-types
 type LoginIdentifier struct {
 	Type string `json:"type"`
-	// when type = m.id.user
+	// when type = m.id.user or m.id.application_service
 	User string `json:"user"`
 	// when type = m.id.thirdparty
 	Medium  string `json:"medium"`
@@ -113,7 +113,7 @@ type UserInteractive struct {
 
 func NewUserInteractive(userAccountAPI api.UserLoginAPI, cfg *config.ClientAPI) *UserInteractive {
 	typePassword := &LoginTypePassword{
-		GetAccountByPassword: userAccountAPI.QueryAccountByPassword,
+		UserAPI: userAccountAPI,
 		Config:  cfg,
 	}
 	return &UserInteractive{

clientapi/auth/user_interactive_test.go

@@ -45,6 +45,14 @@ func (d *fakeAccountDatabase) QueryAccountByPassword(ctx context.Context, req *a
 	return nil
 }
 
+func (d *fakeAccountDatabase) QueryAccountByLocalpart(ctx context.Context, req *api.QueryAccountByLocalpartRequest, res *api.QueryAccountByLocalpartResponse) error {
+	return nil
+}
+
+func (d *fakeAccountDatabase) PerformAccountCreation(ctx context.Context, req *api.PerformAccountCreationRequest, res *api.PerformAccountCreationResponse) error {
+	return nil
+}
+
 func setup() *UserInteractive {
 	cfg := &config.ClientAPI{
 		Matrix: &config.Global{

clientapi/clientapi_test.go

@@ -17,6 +17,7 @@ import (
 	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
 	"github.com/matrix-org/dendrite/clientapi/routing"
 	"github.com/matrix-org/dendrite/clientapi/threepid"
+	"github.com/matrix-org/dendrite/federationapi/statistics"
 	"github.com/matrix-org/dendrite/internal/caching"
 	"github.com/matrix-org/dendrite/internal/httputil"
 	"github.com/matrix-org/dendrite/internal/pushrules"
@@ -49,6 +50,10 @@ type userDevice struct {
 	password    string
 }
 
+var testIsBlacklistedOrBackingOff = func(s spec.ServerName) (*statistics.ServerStatistics, error) {
+	return &statistics.ServerStatistics{}, nil
+}
+
 func TestGetPutDevices(t *testing.T) {
 	alice := test.NewUser(t)
 	bob := test.NewUser(t)
@@ -120,7 +125,8 @@ func TestGetPutDevices(t *testing.T) {
 		routers := httputil.NewRouters()
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 
 		// We mostly need the rsAPI for this test, so nil for other APIs/caches etc.
 		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
@@ -168,7 +174,8 @@ func TestDeleteDevice(t *testing.T) {
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 
 		// We mostly need the rsAPI/ for this test, so nil for other APIs/caches etc.
 		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
@@ -272,7 +279,8 @@ func TestDeleteDevices(t *testing.T) {
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 
 		// We mostly need the rsAPI/ for this test, so nil for other APIs/caches etc.
 		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
@@ -439,7 +447,7 @@ func TestSetDisplayname(t *testing.T) {
 
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, natsInstance, caches, caching.DisableMetrics)
 		rsAPI.SetFederationAPI(nil, nil)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, natsInstance, rsAPI, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 		asPI := appservice.NewInternalAPI(processCtx, cfg, natsInstance, userAPI, rsAPI)
 
 		AddPublicRoutes(processCtx, routers, cfg, natsInstance, base.CreateFederationClient(cfg, nil), rsAPI, asPI, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
@@ -551,7 +559,7 @@ func TestSetAvatarURL(t *testing.T) {
 
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, natsInstance, caches, caching.DisableMetrics)
 		rsAPI.SetFederationAPI(nil, nil)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, natsInstance, rsAPI, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 		asPI := appservice.NewInternalAPI(processCtx, cfg, natsInstance, userAPI, rsAPI)
 
 		AddPublicRoutes(processCtx, routers, cfg, natsInstance, base.CreateFederationClient(cfg, nil), rsAPI, asPI, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
@@ -629,7 +637,7 @@ func TestTyping(t *testing.T) {
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
 		rsAPI.SetFederationAPI(nil, nil)
 		// Needed to create accounts
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 		// We mostly need the rsAPI/userAPI for this test, so nil for other APIs etc.
 		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
 
@@ -713,7 +721,7 @@ func TestMembership(t *testing.T) {
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
 		rsAPI.SetFederationAPI(nil, nil)
 		// Needed to create accounts
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 		rsAPI.SetUserAPI(userAPI)
 		// We mostly need the rsAPI/userAPI for this test, so nil for other APIs etc.
 		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
@@ -920,13 +928,17 @@ func TestCapabilities(t *testing.T) {
 		}
 	}
 
+	var tempRoomServerCfg config.RoomServer
+	tempRoomServerCfg.Defaults(config.DefaultOpts{})
+	defaultRoomVersion := tempRoomServerCfg.DefaultRoomVersion
+
 	expectedMap := map[string]interface{}{
 		"capabilities": map[string]interface{}{
 			"m.change_password": map[string]bool{
 				"enabled": true,
 			},
 			"m.room_versions": map[string]interface{}{
-				"default":   version.DefaultRoomVersion(),
+				"default":   defaultRoomVersion,
 				"available": versionsMap,
 			},
 		},
@@ -946,8 +958,10 @@ func TestCapabilities(t *testing.T) {
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 
 		// Needed to create accounts
-		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, nil, caching.DisableMetrics)
+		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 		// We mostly need the rsAPI/userAPI for this test, so nil for other APIs etc.
 		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
 
@@ -992,8 +1006,10 @@ func TestTurnserver(t *testing.T) {
 	cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 
 	// Needed to create accounts
-	rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, nil, caching.DisableMetrics)
+	caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
-	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+	rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
+	rsAPI.SetFederationAPI(nil, nil)
+	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 	//rsAPI.SetUserAPI(userAPI)
 	// We mostly need the rsAPI/userAPI for this test, so nil for other APIs etc.
 	AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
@@ -1089,8 +1105,10 @@ func Test3PID(t *testing.T) {
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 
 		// Needed to create accounts
-		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, nil, caching.DisableMetrics)
+		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 		// We mostly need the rsAPI/userAPI for this test, so nil for other APIs etc.
 		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
 
@@ -1265,7 +1283,8 @@ func TestPushRules(t *testing.T) {
 		routers := httputil.NewRouters()
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 
 		// We mostly need the rsAPI for this test, so nil for other APIs/caches etc.
 		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
@@ -1407,7 +1426,7 @@ func TestPushRules(t *testing.T) {
 				validateFunc: func(t *testing.T, respBody *bytes.Buffer) {
 					actions := gjson.GetBytes(respBody.Bytes(), "actions").Array()
 					// only a basic check
-					assert.Equal(t, 1, len(actions))
+					assert.Equal(t, 0, len(actions))
 				},
 			},
 			{
@@ -1651,7 +1670,8 @@ func TestKeys(t *testing.T) {
 		routers := httputil.NewRouters()
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 
 		// We mostly need the rsAPI for this test, so nil for other APIs/caches etc.
 		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
@@ -2112,7 +2132,8 @@ func TestKeyBackup(t *testing.T) {
 		routers := httputil.NewRouters()
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 
 		// We mostly need the rsAPI for this test, so nil for other APIs/caches etc.
 		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
@@ -2133,3 +2154,284 @@ func TestKeyBackup(t *testing.T) {
 		}
 	})
 }
+
+func TestGetMembership(t *testing.T) {
+	alice := test.NewUser(t)
+	bob := test.NewUser(t)
+
+	testCases := []struct {
+		name             string
+		roomID           string
+		user             *test.User
+		additionalEvents func(t *testing.T, room *test.Room)
+		request          func(t *testing.T, room *test.Room, accessToken string) *http.Request
+		wantOK           bool
+		wantMemberCount  int
+	}{
+
+		{
+			name: "/joined_members - Bob never joined",
+			user: bob,
+			request: func(t *testing.T, room *test.Room, accessToken string) *http.Request {
+				return test.NewRequest(t, "GET", fmt.Sprintf("/_matrix/client/v3/rooms/%s/joined_members", room.ID), test.WithQueryParams(map[string]string{
+					"access_token": accessToken,
+				}))
+			},
+			wantOK: false,
+		},
+		{
+			name: "/joined_members - Alice joined",
+			user: alice,
+			request: func(t *testing.T, room *test.Room, accessToken string) *http.Request {
+				return test.NewRequest(t, "GET", fmt.Sprintf("/_matrix/client/v3/rooms/%s/joined_members", room.ID), test.WithQueryParams(map[string]string{
+					"access_token": accessToken,
+				}))
+			},
+			wantOK:          true,
+			wantMemberCount: 1,
+		},
+		{
+			name: "/joined_members - Alice leaves, shouldn't be able to see members ",
+			user: alice,
+			request: func(t *testing.T, room *test.Room, accessToken string) *http.Request {
+				return test.NewRequest(t, "GET", fmt.Sprintf("/_matrix/client/v3/rooms/%s/joined_members", room.ID), test.WithQueryParams(map[string]string{
+					"access_token": accessToken,
+				}))
+			},
+			additionalEvents: func(t *testing.T, room *test.Room) {
+				room.CreateAndInsert(t, alice, spec.MRoomMember, map[string]interface{}{
+					"membership": "leave",
+				}, test.WithStateKey(alice.ID))
+			},
+			wantOK: false,
+		},
+		{
+			name: "/joined_members - Bob joins, Alice sees two members",
+			user: alice,
+			request: func(t *testing.T, room *test.Room, accessToken string) *http.Request {
+				return test.NewRequest(t, "GET", fmt.Sprintf("/_matrix/client/v3/rooms/%s/joined_members", room.ID), test.WithQueryParams(map[string]string{
+					"access_token": accessToken,
+				}))
+			},
+			additionalEvents: func(t *testing.T, room *test.Room) {
+				room.CreateAndInsert(t, bob, spec.MRoomMember, map[string]interface{}{
+					"membership": "join",
+				}, test.WithStateKey(bob.ID))
+			},
+			wantOK:          true,
+			wantMemberCount: 2,
+		},
+	}
+
+	test.WithAllDatabases(t, func(t *testing.T, dbType test.DBType) {
+
+		cfg, processCtx, close := testrig.CreateConfig(t, dbType)
+		routers := httputil.NewRouters()
+		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
+		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
+		defer close()
+		natsInstance := jetstream.NATSInstance{}
+		jsctx, _ := natsInstance.Prepare(processCtx, &cfg.Global.JetStream)
+		defer jetstream.DeleteAllStreams(jsctx, &cfg.Global.JetStream)
+
+		// Use an actual roomserver for this
+		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
+
+		// We mostly need the rsAPI for this test, so nil for other APIs/caches etc.
+		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
+
+		accessTokens := map[*test.User]userDevice{
+			alice: {},
+			bob:   {},
+		}
+		createAccessTokens(t, accessTokens, userAPI, processCtx.Context(), routers)
+
+		for _, tc := range testCases {
+			t.Run(tc.name, func(t *testing.T) {
+				room := test.NewRoom(t, alice)
+				t.Cleanup(func() {
+					t.Logf("running cleanup for %s", tc.name)
+				})
+				// inject additional events
+				if tc.additionalEvents != nil {
+					tc.additionalEvents(t, room)
+				}
+				if err := api.SendEvents(context.Background(), rsAPI, api.KindNew, room.Events(), "test", "test", "test", nil, false); err != nil {
+					t.Fatalf("failed to send events: %v", err)
+				}
+
+				w := httptest.NewRecorder()
+				routers.Client.ServeHTTP(w, tc.request(t, room, accessTokens[tc.user].accessToken))
+				if w.Code != 200 && tc.wantOK {
+					t.Logf("%s", w.Body.String())
+					t.Fatalf("got HTTP %d want %d", w.Code, 200)
+				}
+				t.Logf("[%s] Resp: %s", tc.name, w.Body.String())
+
+				// check we got the expected events
+				if tc.wantOK {
+					memberCount := len(gjson.GetBytes(w.Body.Bytes(), "joined").Map())
+					if memberCount != tc.wantMemberCount {
+						t.Fatalf("expected %d members, got %d", tc.wantMemberCount, memberCount)
+					}
+				}
+			})
+		}
+	})
+}
+
+func TestCreateRoomInvite(t *testing.T) {
+	alice := test.NewUser(t)
+	bob := test.NewUser(t)
+
+	test.WithAllDatabases(t, func(t *testing.T, dbType test.DBType) {
+
+		cfg, processCtx, close := testrig.CreateConfig(t, dbType)
+		routers := httputil.NewRouters()
+		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
+		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
+		defer close()
+		natsInstance := jetstream.NATSInstance{}
+		jsctx, _ := natsInstance.Prepare(processCtx, &cfg.Global.JetStream)
+		defer jetstream.DeleteAllStreams(jsctx, &cfg.Global.JetStream)
+
+		// Use an actual roomserver for this
+		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
+
+		// We mostly need the rsAPI for this test, so nil for other APIs/caches etc.
+		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
+
+		accessTokens := map[*test.User]userDevice{
+			alice: {},
+		}
+		createAccessTokens(t, accessTokens, userAPI, processCtx.Context(), routers)
+
+		reqBody := map[string]any{
+			"invite": []string{bob.ID},
+		}
+		body, err := json.Marshal(reqBody)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		w := httptest.NewRecorder()
+		req := httptest.NewRequest(http.MethodPost, "/_matrix/client/v3/createRoom", strings.NewReader(string(body)))
+		req.Header.Set("Authorization", "Bearer "+accessTokens[alice].accessToken)
+
+		routers.Client.ServeHTTP(w, req)
+
+		if w.Code != http.StatusOK {
+			t.Fatalf("expected room creation to be successful, got HTTP %d instead: %s", w.Code, w.Body.String())
+		}
+
+		roomID := gjson.GetBytes(w.Body.Bytes(), "room_id").Str
+		validRoomID, _ := spec.NewRoomID(roomID)
+		// Now ask the roomserver about the membership event of Bob
+		ev, err := rsAPI.CurrentStateEvent(context.Background(), *validRoomID, spec.MRoomMember, bob.ID)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if ev == nil {
+			t.Fatal("Membership event for Bob does not exist")
+		}
+
+		// Validate that there is NO displayname in content
+		if gjson.GetBytes(ev.Content(), "displayname").Exists() {
+			t.Fatal("Found displayname in invite")
+		}
+	})
+}
+
+func TestReportEvent(t *testing.T) {
+	alice := test.NewUser(t)
+	bob := test.NewUser(t)
+	charlie := test.NewUser(t)
+	room := test.NewRoom(t, alice)
+
+	room.CreateAndInsert(t, charlie, spec.MRoomMember, map[string]interface{}{
+		"membership": "join",
+	}, test.WithStateKey(charlie.ID))
+	eventToReport := room.CreateAndInsert(t, alice, "m.room.message", map[string]interface{}{"body": "hello world"})
+
+	test.WithAllDatabases(t, func(t *testing.T, dbType test.DBType) {
+		cfg, processCtx, close := testrig.CreateConfig(t, dbType)
+		routers := httputil.NewRouters()
+		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
+		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
+		defer close()
+		natsInstance := jetstream.NATSInstance{}
+		jsctx, _ := natsInstance.Prepare(processCtx, &cfg.Global.JetStream)
+		defer jetstream.DeleteAllStreams(jsctx, &cfg.Global.JetStream)
+
+		// Use an actual roomserver for this
+		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
+
+		if err := api.SendEvents(context.Background(), rsAPI, api.KindNew, room.Events(), "test", "test", "test", nil, false); err != nil {
+			t.Fatalf("failed to send events: %v", err)
+		}
+
+		// We mostly need the rsAPI for this test, so nil for other APIs/caches etc.
+		AddPublicRoutes(processCtx, routers, cfg, &natsInstance, nil, rsAPI, nil, nil, nil, userAPI, nil, nil, caching.DisableMetrics)
+
+		accessTokens := map[*test.User]userDevice{
+			alice:   {},
+			bob:     {},
+			charlie: {},
+		}
+		createAccessTokens(t, accessTokens, userAPI, processCtx.Context(), routers)
+
+		reqBody := map[string]any{
+			"reason": "baaad",
+			"score":  -100,
+		}
+		body, err := json.Marshal(reqBody)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		w := httptest.NewRecorder()
+
+		var req *http.Request
+		t.Run("Bob is not joined and should not be able to report the event", func(t *testing.T) {
+			req = httptest.NewRequest(http.MethodPost, fmt.Sprintf("/_matrix/client/v3/rooms/%s/report/%s", room.ID, eventToReport.EventID()), strings.NewReader(string(body)))
+			req.Header.Set("Authorization", "Bearer "+accessTokens[bob].accessToken)
+
+			routers.Client.ServeHTTP(w, req)
+
+			if w.Code != http.StatusNotFound {
+				t.Fatalf("expected report to fail, got HTTP %d instead: %s", w.Code, w.Body.String())
+			}
+		})
+
+		t.Run("Charlie is joined but the event does not exist", func(t *testing.T) {
+			w = httptest.NewRecorder()
+			req = httptest.NewRequest(http.MethodPost, fmt.Sprintf("/_matrix/client/v3/rooms/%s/report/$doesNotExist", room.ID), strings.NewReader(string(body)))
+			req.Header.Set("Authorization", "Bearer "+accessTokens[charlie].accessToken)
+
+			routers.Client.ServeHTTP(w, req)
+
+			if w.Code != http.StatusNotFound {
+				t.Fatalf("expected report to fail, got HTTP %d instead: %s", w.Code, w.Body.String())
+			}
+		})
+
+		t.Run("Charlie is joined and allowed to report the event", func(t *testing.T) {
+			w = httptest.NewRecorder()
+			req = httptest.NewRequest(http.MethodPost, fmt.Sprintf("/_matrix/client/v3/rooms/%s/report/%s", room.ID, eventToReport.EventID()), strings.NewReader(string(body)))
+			req.Header.Set("Authorization", "Bearer "+accessTokens[charlie].accessToken)
+
+			routers.Client.ServeHTTP(w, req)
+
+			if w.Code != http.StatusOK {
+				t.Fatalf("expected report to be successful, got HTTP %d instead: %s", w.Code, w.Body.String())
+			}
+		})
+	})
+}

clientapi/routing/admin.go

@@ -6,6 +6,8 @@ import (
 	"errors"
 	"fmt"
 	"net/http"
+	"regexp"
+	"strconv"
 	"time"
 
 	"github.com/gorilla/mux"
@@ -16,14 +18,254 @@ import (
 	"github.com/matrix-org/util"
 	"github.com/nats-io/nats.go"
 	"github.com/sirupsen/logrus"
+	"golang.org/x/exp/constraints"
 
+	clientapi "github.com/matrix-org/dendrite/clientapi/api"
 	"github.com/matrix-org/dendrite/internal/httputil"
 	roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/dendrite/setup/config"
 	"github.com/matrix-org/dendrite/setup/jetstream"
 	"github.com/matrix-org/dendrite/userapi/api"
+	userapi "github.com/matrix-org/dendrite/userapi/api"
 )
 
+var validRegistrationTokenRegex = regexp.MustCompile("^[[:ascii:][:digit:]_]*$")
+
+func AdminCreateNewRegistrationToken(req *http.Request, cfg *config.ClientAPI, userAPI userapi.ClientUserAPI) util.JSONResponse {
+	if !cfg.RegistrationRequiresToken {
+		return util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: spec.Forbidden("Registration via tokens is not enabled on this homeserver"),
+		}
+	}
+	request := struct {
+		Token       string `json:"token"`
+		UsesAllowed *int32 `json:"uses_allowed,omitempty"`
+		ExpiryTime  *int64 `json:"expiry_time,omitempty"`
+		Length      int32  `json:"length"`
+	}{}
+
+	if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.BadJSON(fmt.Sprintf("Failed to decode request body: %s", err)),
+		}
+	}
+
+	token := request.Token
+	usesAllowed := request.UsesAllowed
+	expiryTime := request.ExpiryTime
+	length := request.Length
+
+	if len(token) == 0 {
+		if length == 0 {
+			// length not provided in request. Assign default value of 16.
+			length = 16
+		}
+		// token not present in request body. Hence, generate a random token.
+		if length <= 0 || length > 64 {
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: spec.BadJSON("length must be greater than zero and not greater than 64"),
+			}
+		}
+		token = util.RandomString(int(length))
+	}
+
+	if len(token) > 64 {
+		//Token present in request body, but is too long.
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.BadJSON("token must not be longer than 64"),
+		}
+	}
+
+	isTokenValid := validRegistrationTokenRegex.Match([]byte(token))
+	if !isTokenValid {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.BadJSON("token must consist only of characters matched by the regex [A-Za-z0-9-_]"),
+		}
+	}
+	// At this point, we have a valid token, either through request body or through random generation.
+	if usesAllowed != nil && *usesAllowed < 0 {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.BadJSON("uses_allowed must be a non-negative integer or null"),
+		}
+	}
+	if expiryTime != nil && spec.Timestamp(*expiryTime).Time().Before(time.Now()) {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.BadJSON("expiry_time must not be in the past"),
+		}
+	}
+	pending := int32(0)
+	completed := int32(0)
+	// If usesAllowed or expiryTime is 0, it means they are not present in the request. NULL (indicating unlimited uses / no expiration will be persisted in DB)
+	registrationToken := &clientapi.RegistrationToken{
+		Token:       &token,
+		UsesAllowed: usesAllowed,
+		Pending:     &pending,
+		Completed:   &completed,
+		ExpiryTime:  expiryTime,
+	}
+	created, err := userAPI.PerformAdminCreateRegistrationToken(req.Context(), registrationToken)
+	if !created {
+		return util.JSONResponse{
+			Code: http.StatusConflict,
+			JSON: map[string]string{
+				"error": fmt.Sprintf("token: %s already exists", token),
+			},
+		}
+	}
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: err,
+		}
+	}
+	return util.JSONResponse{
+		Code: 200,
+		JSON: map[string]interface{}{
+			"token":        token,
+			"uses_allowed": getReturnValue(usesAllowed),
+			"pending":      pending,
+			"completed":    completed,
+			"expiry_time":  getReturnValue(expiryTime),
+		},
+	}
+}
+
+func getReturnValue[t constraints.Integer](in *t) any {
+	if in == nil {
+		return nil
+	}
+	return *in
+}
+
+func AdminListRegistrationTokens(req *http.Request, cfg *config.ClientAPI, userAPI userapi.ClientUserAPI) util.JSONResponse {
+	queryParams := req.URL.Query()
+	returnAll := true
+	valid := true
+	validQuery, ok := queryParams["valid"]
+	if ok {
+		returnAll = false
+		validValue, err := strconv.ParseBool(validQuery[0])
+		if err != nil {
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: spec.BadJSON("invalid 'valid' query parameter"),
+			}
+		}
+		valid = validValue
+	}
+	tokens, err := userAPI.PerformAdminListRegistrationTokens(req.Context(), returnAll, valid)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.ErrorUnknown,
+		}
+	}
+	return util.JSONResponse{
+		Code: 200,
+		JSON: map[string]interface{}{
+			"registration_tokens": tokens,
+		},
+	}
+}
+
+func AdminGetRegistrationToken(req *http.Request, cfg *config.ClientAPI, userAPI userapi.ClientUserAPI) util.JSONResponse {
+	vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
+	if err != nil {
+		return util.ErrorResponse(err)
+	}
+	tokenText := vars["token"]
+	token, err := userAPI.PerformAdminGetRegistrationToken(req.Context(), tokenText)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusNotFound,
+			JSON: spec.NotFound(fmt.Sprintf("token: %s not found", tokenText)),
+		}
+	}
+	return util.JSONResponse{
+		Code: 200,
+		JSON: token,
+	}
+}
+
+func AdminDeleteRegistrationToken(req *http.Request, cfg *config.ClientAPI, userAPI userapi.ClientUserAPI) util.JSONResponse {
+	vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
+	if err != nil {
+		return util.ErrorResponse(err)
+	}
+	tokenText := vars["token"]
+	err = userAPI.PerformAdminDeleteRegistrationToken(req.Context(), tokenText)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: err,
+		}
+	}
+	return util.JSONResponse{
+		Code: 200,
+		JSON: map[string]interface{}{},
+	}
+}
+
+func AdminUpdateRegistrationToken(req *http.Request, cfg *config.ClientAPI, userAPI userapi.ClientUserAPI) util.JSONResponse {
+	vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
+	if err != nil {
+		return util.ErrorResponse(err)
+	}
+	tokenText := vars["token"]
+	request := make(map[string]*int64)
+	if err = json.NewDecoder(req.Body).Decode(&request); err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.BadJSON(fmt.Sprintf("Failed to decode request body: %s", err)),
+		}
+	}
+	newAttributes := make(map[string]interface{})
+	usesAllowed, ok := request["uses_allowed"]
+	if ok {
+		// Only add usesAllowed to newAtrributes if it is present and valid
+		if usesAllowed != nil && *usesAllowed < 0 {
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: spec.BadJSON("uses_allowed must be a non-negative integer or null"),
+			}
+		}
+		newAttributes["usesAllowed"] = usesAllowed
+	}
+	expiryTime, ok := request["expiry_time"]
+	if ok {
+		// Only add expiryTime to newAtrributes if it is present and valid
+		if expiryTime != nil && spec.Timestamp(*expiryTime).Time().Before(time.Now()) {
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: spec.BadJSON("expiry_time must not be in the past"),
+			}
+		}
+		newAttributes["expiryTime"] = expiryTime
+	}
+	if len(newAttributes) == 0 {
+		// No attributes to update. Return existing token
+		return AdminGetRegistrationToken(req, cfg, userAPI)
+	}
+	updatedToken, err := userAPI.PerformAdminUpdateRegistrationToken(req.Context(), tokenText, newAttributes)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusNotFound,
+			JSON: spec.NotFound(fmt.Sprintf("token: %s not found", tokenText)),
+		}
+	}
+	return util.JSONResponse{
+		Code: 200,
+		JSON: *updatedToken,
+	}
+}
+
 func AdminEvacuateRoom(req *http.Request, rsAPI roomserverAPI.ClientRoomserverAPI) util.JSONResponse {
 	vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
 	if err != nil {
@@ -253,3 +495,93 @@ func AdminDownloadState(req *http.Request, device *api.Device, rsAPI roomserverA
 		JSON: struct{}{},
 	}
 }
+
+// GetEventReports returns reported events for a given user/room.
+func GetEventReports(
+	req *http.Request,
+	rsAPI roomserverAPI.ClientRoomserverAPI,
+	from, limit uint64,
+	backwards bool,
+	userID, roomID string,
+) util.JSONResponse {
+
+	eventReports, count, err := rsAPI.QueryAdminEventReports(req.Context(), from, limit, backwards, userID, roomID)
+	if err != nil {
+		logrus.WithError(err).Error("failed to query event reports")
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.InternalServerError{},
+		}
+	}
+
+	resp := map[string]any{
+		"event_reports": eventReports,
+		"total":         count,
+	}
+
+	// Add a next_token if there are still reports
+	if int64(from+limit) < count {
+		resp["next_token"] = int(from) + len(eventReports)
+	}
+
+	return util.JSONResponse{
+		Code: http.StatusOK,
+		JSON: resp,
+	}
+}
+
+func GetEventReport(req *http.Request, rsAPI roomserverAPI.ClientRoomserverAPI, reportID string) util.JSONResponse {
+	parsedReportID, err := strconv.ParseUint(reportID, 10, 64)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			// Given this is an admin endpoint, let them know what didn't work.
+			JSON: spec.InvalidParam(err.Error()),
+		}
+	}
+
+	report, err := rsAPI.QueryAdminEventReport(req.Context(), parsedReportID)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown(err.Error()),
+		}
+	}
+
+	return util.JSONResponse{
+		Code: http.StatusOK,
+		JSON: report,
+	}
+}
+
+func DeleteEventReport(req *http.Request, rsAPI roomserverAPI.ClientRoomserverAPI, reportID string) util.JSONResponse {
+	parsedReportID, err := strconv.ParseUint(reportID, 10, 64)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			// Given this is an admin endpoint, let them know what didn't work.
+			JSON: spec.InvalidParam(err.Error()),
+		}
+	}
+
+	err = rsAPI.PerformAdminDeleteEventReport(req.Context(), parsedReportID)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown(err.Error()),
+		}
+	}
+
+	return util.JSONResponse{
+		Code: http.StatusOK,
+		JSON: struct{}{},
+	}
+}
+
+func parseUint64OrDefault(input string, defaultValue uint64) uint64 {
+	v, err := strconv.ParseUint(input, 10, 64)
+	if err != nil {
+		return defaultValue
+	}
+	return v
+}

clientapi/routing/capabilities.go

@@ -17,6 +17,7 @@ package routing
 import (
 	"net/http"
 
+	roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/dendrite/roomserver/version"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
@@ -24,7 +25,7 @@ import (
 
 // GetCapabilities returns information about the server's supported feature set
 // and other relevant capabilities to an authenticated user.
-func GetCapabilities() util.JSONResponse {
+func GetCapabilities(rsAPI roomserverAPI.ClientRoomserverAPI) util.JSONResponse {
 	versionsMap := map[gomatrixserverlib.RoomVersion]string{}
 	for v, desc := range version.SupportedRoomVersions() {
 		if desc.Stable() {
@@ -40,7 +41,7 @@ func GetCapabilities() util.JSONResponse {
 				"enabled": true,
 			},
 			"m.room_versions": map[string]interface{}{
-				"default":   version.DefaultRoomVersion(),
+				"default":   rsAPI.DefaultRoomVersion(),
 				"available": versionsMap,
 			},
 		},

clientapi/routing/createroom.go

@@ -171,7 +171,7 @@ func createRoom(
 
 	// Clobber keys: creator, room_version
 
-	roomVersion := roomserverVersion.DefaultRoomVersion()
+	roomVersion := rsAPI.DefaultRoomVersion()
 	if createRequest.RoomVersion != "" {
 		candidateVersion := gomatrixserverlib.RoomVersion(createRequest.RoomVersion)
 		_, roomVersionError := roomserverVersion.SupportedRoomVersion(candidateVersion)

clientapi/routing/directory.go

@@ -55,7 +55,7 @@ func DirectoryRoom(
 	if err != nil {
 		return util.JSONResponse{
 			Code: http.StatusBadRequest,
-			JSON: spec.BadJSON("Room alias must be in the form '#localpart:domain'"),
+			JSON: spec.InvalidParam("Room alias must be in the form '#localpart:domain'"),
 		}
 	}
 
@@ -134,7 +134,7 @@ func SetLocalAlias(
 	if err != nil {
 		return util.JSONResponse{
 			Code: http.StatusBadRequest,
-			JSON: spec.BadJSON("Room alias must be in the form '#localpart:domain'"),
+			JSON: spec.InvalidParam("Room alias must be in the form '#localpart:domain'"),
 		}
 	}
 
@@ -181,13 +181,39 @@ func SetLocalAlias(
 		return *resErr
 	}
 
-	queryReq := roomserverAPI.SetRoomAliasRequest{
+	roomID, err := spec.NewRoomID(r.RoomID)
-		UserID: device.UserID,
+	if err != nil {
-		RoomID: r.RoomID,
+		return util.JSONResponse{
-		Alias:  alias,
+			Code: http.StatusBadRequest,
+			JSON: spec.InvalidParam("invalid room ID"),
 		}
-	var queryRes roomserverAPI.SetRoomAliasResponse
+	}
-	if err := rsAPI.SetRoomAlias(req.Context(), &queryReq, &queryRes); err != nil {
+
+	userID, err := spec.NewUserID(device.UserID, true)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown("internal server error"),
+		}
+	}
+
+	senderID, err := rsAPI.QuerySenderIDForUser(req.Context(), *roomID, *userID)
+	if err != nil {
+		util.GetLogger(req.Context()).WithError(err).Error("QuerySenderIDForUser failed")
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown("internal server error"),
+		}
+	} else if senderID == nil {
+		util.GetLogger(req.Context()).WithField("roomID", *roomID).WithField("userID", *userID).Error("Sender ID not found")
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown("internal server error"),
+		}
+	}
+
+	aliasAlreadyExists, err := rsAPI.SetRoomAlias(req.Context(), *senderID, *roomID, alias)
+	if err != nil {
 		util.GetLogger(req.Context()).WithError(err).Error("aliasAPI.SetRoomAlias failed")
 		return util.JSONResponse{
 			Code: http.StatusInternalServerError,
@@ -195,7 +221,7 @@ func SetLocalAlias(
 		}
 	}
 
-	if queryRes.AliasExists {
+	if aliasAlreadyExists {
 		return util.JSONResponse{
 			Code: http.StatusConflict,
 			JSON: spec.Unknown("The alias " + alias + " already exists."),
@@ -240,6 +266,31 @@ func RemoveLocalAlias(
 			JSON: spec.NotFound("The alias does not exist."),
 		}
 	}
+
+	// This seems like the kind of auth check that should be done in the roomserver, but
+	// if this check fails (user is not in the room), then there will be no SenderID for the user
+	// for pseudo-ID rooms - it will just return "". However, we can't use lack of a sender ID
+	// as meaning they are not in the room, since lacking a sender ID could be caused by other bugs.
+	// TODO: maybe have QuerySenderIDForUser return richer errors?
+	var queryResp roomserverAPI.QueryMembershipForUserResponse
+	err = rsAPI.QueryMembershipForUser(req.Context(), &roomserverAPI.QueryMembershipForUserRequest{
+		RoomID: validRoomID.String(),
+		UserID: *userID,
+	}, &queryResp)
+	if err != nil {
+		util.GetLogger(req.Context()).WithError(err).Error("roomserverAPI.QueryMembershipForUser failed")
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown("internal server error"),
+		}
+	}
+	if !queryResp.IsInRoom {
+		return util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: spec.Forbidden("You do not have permission to remove this alias."),
+		}
+	}
+
 	deviceSenderID, err := rsAPI.QuerySenderIDForUser(req.Context(), *validRoomID, *userID)
 	if err != nil {
 		return util.JSONResponse{
@@ -247,28 +298,31 @@ func RemoveLocalAlias(
 			JSON: spec.NotFound("The alias does not exist."),
 		}
 	}
-
+	// TODO: how to handle this case? missing user/room keys seem to be a whole new class of errors
-	queryReq := roomserverAPI.RemoveRoomAliasRequest{
+	if deviceSenderID == nil {
-		Alias:    alias,
+		return util.JSONResponse{
-		SenderID: deviceSenderID,
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown("internal server error"),
 		}
-	var queryRes roomserverAPI.RemoveRoomAliasResponse
+	}
-	if err := rsAPI.RemoveRoomAlias(req.Context(), &queryReq, &queryRes); err != nil {
+
+	aliasFound, aliasRemoved, err := rsAPI.RemoveRoomAlias(req.Context(), *deviceSenderID, alias)
+	if err != nil {
 		util.GetLogger(req.Context()).WithError(err).Error("aliasAPI.RemoveRoomAlias failed")
 		return util.JSONResponse{
 			Code: http.StatusInternalServerError,
-			JSON: spec.InternalServerError{},
+			JSON: spec.Unknown("internal server error"),
 		}
 	}
 
-	if !queryRes.Found {
+	if !aliasFound {
 		return util.JSONResponse{
 			Code: http.StatusNotFound,
 			JSON: spec.NotFound("The alias does not exist."),
 		}
 	}
 
-	if !queryRes.Removed {
+	if !aliasRemoved {
 		return util.JSONResponse{
 			Code: http.StatusForbidden,
 			JSON: spec.Forbidden("You do not have permission to remove this alias."),
@@ -337,7 +391,7 @@ func SetVisibility(
 		}
 	}
 	senderID, err := rsAPI.QuerySenderIDForUser(req.Context(), *validRoomID, *deviceUserID)
-	if err != nil {
+	if err != nil || senderID == nil {
 		return util.JSONResponse{
 			Code: http.StatusBadRequest,
 			JSON: spec.Unknown("failed to find senderID for this user"),
@@ -368,7 +422,7 @@ func SetVisibility(
 
 	// NOTSPEC: Check if the user's power is greater than power required to change m.room.canonical_alias event
 	power, _ := gomatrixserverlib.NewPowerLevelContentFromEvent(queryEventsRes.StateEvents[0].PDU)
-	if power.UserLevel(senderID) < power.EventLevel(spec.MRoomCanonicalAlias, true) {
+	if power.UserLevel(*senderID) < power.EventLevel(spec.MRoomCanonicalAlias, true) {
 		return util.JSONResponse{
 			Code: http.StatusForbidden,
 			JSON: spec.Forbidden("userID doesn't have power level to change visibility"),

clientapi/routing/joined_rooms.go

@@ -33,23 +33,36 @@ func GetJoinedRooms(
 	device *userapi.Device,
 	rsAPI api.ClientRoomserverAPI,
 ) util.JSONResponse {
-	var res api.QueryRoomsForUserResponse
+	deviceUserID, err := spec.NewUserID(device.UserID, true)
-	err := rsAPI.QueryRoomsForUser(req.Context(), &api.QueryRoomsForUserRequest{
+	if err != nil {
-		UserID:         device.UserID,
+		util.GetLogger(req.Context()).WithError(err).Error("Invalid device user ID")
-		WantMembership: "join",
+		return util.JSONResponse{
-	}, &res)
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown("internal server error"),
+		}
+	}
+
+	rooms, err := rsAPI.QueryRoomsForUser(req.Context(), *deviceUserID, "join")
 	if err != nil {
 		util.GetLogger(req.Context()).WithError(err).Error("QueryRoomsForUser failed")
 		return util.JSONResponse{
 			Code: http.StatusInternalServerError,
-			JSON: spec.InternalServerError{},
+			JSON: spec.Unknown("internal server error"),
 		}
 	}
-	if res.RoomIDs == nil {
+
-		res.RoomIDs = []string{}
+	var roomIDStrs []string
+	if rooms == nil {
+		roomIDStrs = []string{}
+	} else {
+		roomIDStrs = make([]string, len(rooms))
+		for i, roomID := range rooms {
+			roomIDStrs[i] = roomID.String()
 		}
+	}
+
 	return util.JSONResponse{
 		Code: http.StatusOK,
-		JSON: getJoinedRoomsResponse{res.RoomIDs},
+		JSON: getJoinedRoomsResponse{roomIDStrs},
 	}
 }

clientapi/routing/joinroom_test.go

@@ -7,6 +7,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/matrix-org/dendrite/federationapi/statistics"
 	"github.com/matrix-org/dendrite/internal/caching"
 	"github.com/matrix-org/dendrite/internal/sqlutil"
 	"github.com/matrix-org/dendrite/setup/jetstream"
@@ -21,6 +22,10 @@ import (
 	uapi "github.com/matrix-org/dendrite/userapi/api"
 )
 
+var testIsBlacklistedOrBackingOff = func(s spec.ServerName) (*statistics.ServerStatistics, error) {
+	return &statistics.ServerStatistics{}, nil
+}
+
 func TestJoinRoomByIDOrAlias(t *testing.T) {
 	alice := test.NewUser(t)
 	bob := test.NewUser(t)
@@ -35,9 +40,9 @@ func TestJoinRoomByIDOrAlias(t *testing.T) {
 		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
 		natsInstance := jetstream.NATSInstance{}
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
-		asAPI := appservice.NewInternalAPI(processCtx, cfg, &natsInstance, userAPI, rsAPI)
 		rsAPI.SetFederationAPI(nil, nil) // creates the rs.Inputer etc
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
+		asAPI := appservice.NewInternalAPI(processCtx, cfg, &natsInstance, userAPI, rsAPI)
 
 		// Create the users in the userapi
 		for _, u := range []*test.User{alice, bob, charlie} {

clientapi/routing/key_crosssigning.go

@@ -32,7 +32,7 @@ type crossSigningRequest struct {
 }
 
 func UploadCrossSigningDeviceKeys(
-	req *http.Request, userInteractiveAuth *auth.UserInteractive,
+	req *http.Request,
 	keyserverAPI api.ClientKeyAPI, device *api.Device,
 	accountAPI api.ClientUserAPI, cfg *config.ClientAPI,
 ) util.JSONResponse {
@@ -62,7 +62,7 @@ func UploadCrossSigningDeviceKeys(
 		}
 	}
 	typePassword := auth.LoginTypePassword{
-		GetAccountByPassword: accountAPI.QueryAccountByPassword,
+		UserAPI: accountAPI,
 		Config:  cfg,
 	}
 	if _, authErr := typePassword.Login(req.Context(), &uploadReq.Auth.PasswordRequest); authErr != nil {

clientapi/routing/keys.go

@@ -93,7 +93,6 @@ func UploadKeys(req *http.Request, keyAPI api.ClientKeyAPI, device *api.Device)
 
 type queryKeysRequest struct {
 	Timeout    int                 `json:"timeout"`
-	Token      string              `json:"token"`
 	DeviceKeys map[string][]string `json:"device_keys"`
 }
 
@@ -119,7 +118,6 @@ func QueryKeys(req *http.Request, keyAPI api.ClientKeyAPI, device *api.Device) u
 		UserID:        device.UserID,
 		UserToDevices: r.DeviceKeys,
 		Timeout:       r.GetTimeout(),
-		// TODO: Token?
 	}, &queryRes)
 	return util.JSONResponse{
 		Code: 200,

clientapi/routing/login.go

@@ -19,6 +19,7 @@ import (
 	"net/http"
 
 	"github.com/matrix-org/dendrite/clientapi/auth"
+	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
 	"github.com/matrix-org/dendrite/clientapi/userutil"
 	"github.com/matrix-org/dendrite/setup/config"
 	userapi "github.com/matrix-org/dendrite/userapi/api"
@@ -40,28 +41,25 @@ type flow struct {
 	Type string `json:"type"`
 }
 
-func passwordLogin() flows {
-	f := flows{}
-	s := flow{
-		Type: "m.login.password",
-	}
-	f.Flows = append(f.Flows, s)
-	return f
-}
-
 // Login implements GET and POST /login
 func Login(
 	req *http.Request, userAPI userapi.ClientUserAPI,
 	cfg *config.ClientAPI,
 ) util.JSONResponse {
 	if req.Method == http.MethodGet {
-		// TODO: support other forms of login other than password, depending on config options
+		loginFlows := []flow{{Type: authtypes.LoginTypePassword}}
+		if len(cfg.Derived.ApplicationServices) > 0 {
+			loginFlows = append(loginFlows, flow{Type: authtypes.LoginTypeApplicationService})
+		}
+		// TODO: support other forms of login, depending on config options
 		return util.JSONResponse{
 			Code: http.StatusOK,
-			JSON: passwordLogin(),
+			JSON: flows{
+				Flows: loginFlows,
+			},
 		}
 	} else if req.Method == http.MethodPost {
-		login, cleanup, authErr := auth.LoginFromJSONReader(req.Context(), req.Body, userAPI, userAPI, cfg)
+		login, cleanup, authErr := auth.LoginFromJSONReader(req, userAPI, userAPI, cfg)
 		if authErr != nil {
 			return *authErr
 		}

clientapi/routing/login_test.go

@@ -47,8 +47,9 @@ func TestLogin(t *testing.T) {
 		routers := httputil.NewRouters()
 		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
+		rsAPI.SetFederationAPI(nil, nil)
 		// Needed for /login
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 
 		// We mostly need the userAPI for this test, so nil for other APIs/caches etc.
 		Setup(routers, cfg, nil, nil, userAPI, nil, nil, nil, nil, nil, nil, nil, caching.DisableMetrics)
@@ -113,6 +114,44 @@ func TestLogin(t *testing.T) {
 
 		ctx := context.Background()
 
+		// Inject a dummy application service, so we have a "m.login.application_service"
+		// in the login flows
+		as := &config.ApplicationService{}
+		cfg.AppServiceAPI.Derived.ApplicationServices = []config.ApplicationService{*as}
+
+		t.Run("Supported log-in flows are returned", func(t *testing.T) {
+			req := test.NewRequest(t, http.MethodGet, "/_matrix/client/v3/login")
+			rec := httptest.NewRecorder()
+			routers.Client.ServeHTTP(rec, req)
+			if rec.Code != http.StatusOK {
+				t.Fatalf("failed to get log-in flows: %s", rec.Body.String())
+			}
+
+			t.Logf("response: %s", rec.Body.String())
+			resp := flows{}
+			if err := json.Unmarshal(rec.Body.Bytes(), &resp); err != nil {
+				t.Fatal(err)
+			}
+
+			appServiceFound := false
+			passwordFound := false
+			for _, flow := range resp.Flows {
+				if flow.Type == "m.login.password" {
+					passwordFound = true
+				} else if flow.Type == "m.login.application_service" {
+					appServiceFound = true
+				} else {
+					t.Fatalf("got unknown login flow: %s", flow.Type)
+				}
+			}
+			if !appServiceFound {
+				t.Fatal("m.login.application_service missing from login flows")
+			}
+			if !passwordFound {
+				t.Fatal("m.login.password missing from login flows")
+			}
+		})
+
 		for _, tc := range testCases {
 			t.Run(tc.name, func(t *testing.T) {
 				req := test.NewRequest(t, http.MethodPost, "/_matrix/client/v3/login", test.WithJSONBody(t, map[string]interface{}{

clientapi/routing/membership.go

@@ -22,10 +22,6 @@ import (
 	"time"
 
 	"github.com/getsentry/sentry-go"
-	"github.com/matrix-org/gomatrixserverlib"
-	"github.com/matrix-org/gomatrixserverlib/fclient"
-	"github.com/matrix-org/gomatrixserverlib/spec"
-
 	appserviceAPI "github.com/matrix-org/dendrite/appservice/api"
 	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
 	"github.com/matrix-org/dendrite/clientapi/httputil"
@@ -36,6 +32,9 @@ import (
 	"github.com/matrix-org/dendrite/roomserver/types"
 	"github.com/matrix-org/dendrite/setup/config"
 	userapi "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/gomatrixserverlib"
+	"github.com/matrix-org/gomatrixserverlib/fclient"
+	"github.com/matrix-org/gomatrixserverlib/spec"
 
 	"github.com/matrix-org/util"
 )
@@ -72,7 +71,7 @@ func SendBan(
 		}
 	}
 	senderID, err := rsAPI.QuerySenderIDForUser(req.Context(), *validRoomID, *deviceUserID)
-	if err != nil {
+	if err != nil || senderID == nil {
 		return util.JSONResponse{
 			Code: http.StatusForbidden,
 			JSON: spec.Forbidden("You don't have permission to ban this user, unknown senderID"),
@@ -88,7 +87,7 @@ func SendBan(
 	if errRes != nil {
 		return *errRes
 	}
-	allowedToBan := pl.UserLevel(senderID) >= pl.Ban
+	allowedToBan := pl.UserLevel(*senderID) >= pl.Ban
 	if !allowedToBan {
 		return util.JSONResponse{
 			Code: http.StatusForbidden,
@@ -170,7 +169,7 @@ func SendKick(
 		}
 	}
 	senderID, err := rsAPI.QuerySenderIDForUser(req.Context(), *validRoomID, *deviceUserID)
-	if err != nil {
+	if err != nil || senderID == nil {
 		return util.JSONResponse{
 			Code: http.StatusForbidden,
 			JSON: spec.Forbidden("You don't have permission to kick this user, unknown senderID"),
@@ -182,18 +181,6 @@ func SendKick(
 		return *errRes
 	}
 
-	pl, errRes := getPowerlevels(req, rsAPI, roomID)
-	if errRes != nil {
-		return *errRes
-	}
-	allowedToKick := pl.UserLevel(senderID) >= pl.Kick
-	if !allowedToKick {
-		return util.JSONResponse{
-			Code: http.StatusForbidden,
-			JSON: spec.Forbidden("You don't have permission to kick this user, power level too low."),
-		}
-	}
-
 	bodyUserID, err := spec.NewUserID(body.UserID, true)
 	if err != nil {
 		return util.JSONResponse{
@@ -201,6 +188,19 @@ func SendKick(
 			JSON: spec.BadJSON("body userID is invalid"),
 		}
 	}
+
+	pl, errRes := getPowerlevels(req, rsAPI, roomID)
+	if errRes != nil {
+		return *errRes
+	}
+	allowedToKick := pl.UserLevel(*senderID) >= pl.Kick || bodyUserID.String() == deviceUserID.String()
+	if !allowedToKick {
+		return util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: spec.Forbidden("You don't have permission to kick this user, power level too low."),
+		}
+	}
+
 	var queryRes roomserverAPI.QueryMembershipForUserResponse
 	err = rsAPI.QueryMembershipForUser(req.Context(), &roomserverAPI.QueryMembershipForUserRequest{
 		RoomID: roomID,
@@ -324,36 +324,60 @@ func SendInvite(
 	}
 
 	// We already received the return value, so no need to check for an error here.
-	response, _ := sendInvite(req.Context(), profileAPI, device, roomID, body.UserID, body.Reason, cfg, rsAPI, asAPI, evTime)
+	response, _ := sendInvite(req.Context(), device, roomID, body.UserID, body.Reason, cfg, rsAPI, evTime)
 	return response
 }
 
 // sendInvite sends an invitation to a user. Returns a JSONResponse and an error
 func sendInvite(
 	ctx context.Context,
-	profileAPI userapi.ClientUserAPI,
 	device *userapi.Device,
 	roomID, userID, reason string,
 	cfg *config.ClientAPI,
 	rsAPI roomserverAPI.ClientRoomserverAPI,
-	asAPI appserviceAPI.AppServiceInternalAPI, evTime time.Time,
+	evTime time.Time,
 ) (util.JSONResponse, error) {
-	event, err := buildMembershipEvent(
+	validRoomID, err := spec.NewRoomID(roomID)
-		ctx, userID, reason, profileAPI, device, spec.Invite,
+	if err != nil {
-		roomID, false, cfg, evTime, rsAPI, asAPI,
+		return util.JSONResponse{
-	)
+			Code: http.StatusBadRequest,
+			JSON: spec.InvalidParam("RoomID is invalid"),
+		}, err
+	}
+	inviter, err := spec.NewUserID(device.UserID, true)
 	if err != nil {
-		util.GetLogger(ctx).WithError(err).Error("buildMembershipEvent failed")
 		return util.JSONResponse{
 			Code: http.StatusInternalServerError,
 			JSON: spec.InternalServerError{},
 		}, err
 	}
+	invitee, err := spec.NewUserID(userID, true)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.InvalidParam("UserID is invalid"),
+		}, err
+	}
 
+	identity, err := cfg.Matrix.SigningIdentityFor(device.UserDomain())
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.InternalServerError{},
+		}, err
+	}
 	err = rsAPI.PerformInvite(ctx, &api.PerformInviteRequest{
-		Event:           event,
+		InviteInput: roomserverAPI.InviteInput{
+			RoomID:     *validRoomID,
+			Inviter:    *inviter,
+			Invitee:    *invitee,
+			Reason:     reason,
+			IsDirect:   false,
+			KeyID:      identity.KeyID,
+			PrivateKey: identity.PrivateKey,
+			EventTime:  evTime,
+		},
 		InviteRoomState: nil, // ask the roomserver to draw up invite room state for us
-		RoomVersion:     event.Version(),
 		SendAsServer:    string(device.UserDomain()),
 	})
 
@@ -433,11 +457,6 @@ func buildMembershipEvent(
 		return nil, err
 	}
 
-	identity, err := cfg.Matrix.SigningIdentityFor(device.UserDomain())
-	if err != nil {
-		return nil, err
-	}
-
 	userID, err := spec.NewUserID(device.UserID, true)
 	if err != nil {
 		return nil, err
@@ -449,6 +468,8 @@ func buildMembershipEvent(
 	senderID, err := rsAPI.QuerySenderIDForUser(ctx, *validRoomID, *userID)
 	if err != nil {
 		return nil, err
+	} else if senderID == nil {
+		return nil, fmt.Errorf("no sender ID for %s in %s", *userID, *validRoomID)
 	}
 
 	targetID, err := spec.NewUserID(targetUserID, true)
@@ -458,9 +479,17 @@ func buildMembershipEvent(
 	targetSenderID, err := rsAPI.QuerySenderIDForUser(ctx, *validRoomID, *targetID)
 	if err != nil {
 		return nil, err
+	} else if targetSenderID == nil {
+		return nil, fmt.Errorf("no sender ID for %s in %s", *targetID, *validRoomID)
 	}
-	return buildMembershipEventDirect(ctx, targetSenderID, reason, profile.DisplayName, profile.AvatarURL,
+
-		senderID, device.UserDomain(), membership, roomID, isDirect, identity.KeyID, identity.PrivateKey, evTime, rsAPI)
+	identity, err := rsAPI.SigningIdentityFor(ctx, *validRoomID, *userID)
+	if err != nil {
+		return nil, err
+	}
+
+	return buildMembershipEventDirect(ctx, *targetSenderID, reason, profile.DisplayName, profile.AvatarURL,
+		*senderID, device.UserDomain(), membership, roomID, isDirect, identity.KeyID, identity.PrivateKey, evTime, rsAPI)
 }
 
 // loadProfile lookups the profile of a given user from the database and returns

clientapi/routing/memberships.go

@@ -0,0 +1,139 @@
+// Copyright 2024 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package routing
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/matrix-org/dendrite/roomserver/api"
+	userapi "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/gomatrixserverlib/spec"
+	"github.com/matrix-org/util"
+)
+
+// https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-r0-rooms-roomid-joined-members
+type getJoinedMembersResponse struct {
+	Joined map[string]joinedMember `json:"joined"`
+}
+
+type joinedMember struct {
+	DisplayName string `json:"display_name"`
+	AvatarURL   string `json:"avatar_url"`
+}
+
+// The database stores 'displayname' without an underscore.
+// Deserialize into this and then change to the actual API response
+type databaseJoinedMember struct {
+	DisplayName string `json:"displayname"`
+	AvatarURL   string `json:"avatar_url"`
+}
+
+// GetJoinedMembers implements
+//
+//	GET /rooms/{roomId}/joined_members
+func GetJoinedMembers(
+	req *http.Request, device *userapi.Device, roomID string,
+	rsAPI api.ClientRoomserverAPI,
+) util.JSONResponse {
+	// Validate the userID
+	userID, err := spec.NewUserID(device.UserID, true)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.InvalidParam("Device UserID is invalid"),
+		}
+	}
+
+	// Validate the roomID
+	validRoomID, err := spec.NewRoomID(roomID)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.InvalidParam("RoomID is invalid"),
+		}
+	}
+
+	// Get the current memberships for the requesting user to determine
+	// if they are allowed to query this endpoint.
+	queryReq := api.QueryMembershipForUserRequest{
+		RoomID: validRoomID.String(),
+		UserID: *userID,
+	}
+
+	var queryRes api.QueryMembershipForUserResponse
+	if queryErr := rsAPI.QueryMembershipForUser(req.Context(), &queryReq, &queryRes); queryErr != nil {
+		util.GetLogger(req.Context()).WithError(queryErr).Error("rsAPI.QueryMembershipsForRoom failed")
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.InternalServerError{},
+		}
+	}
+
+	if !queryRes.HasBeenInRoom {
+		return util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: spec.Forbidden("You aren't a member of the room and weren't previously a member of the room."),
+		}
+	}
+
+	if !queryRes.IsInRoom {
+		return util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: spec.Forbidden("You aren't a member of the room and weren't previously a member of the room."),
+		}
+	}
+
+	// Get the current membership events
+	var membershipsForRoomResp api.QueryMembershipsForRoomResponse
+	if err = rsAPI.QueryMembershipsForRoom(req.Context(), &api.QueryMembershipsForRoomRequest{
+		JoinedOnly: true,
+		RoomID:     validRoomID.String(),
+	}, &membershipsForRoomResp); err != nil {
+		util.GetLogger(req.Context()).WithError(err).Error("rsAPI.QueryEventsByID failed")
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.InternalServerError{},
+		}
+	}
+
+	var res getJoinedMembersResponse
+	res.Joined = make(map[string]joinedMember)
+	for _, ev := range membershipsForRoomResp.JoinEvents {
+		var content databaseJoinedMember
+		if err := json.Unmarshal(ev.Content, &content); err != nil {
+			util.GetLogger(req.Context()).WithError(err).Error("failed to unmarshal event content")
+			return util.JSONResponse{
+				Code: http.StatusInternalServerError,
+				JSON: spec.InternalServerError{},
+			}
+		}
+
+		userID, err := rsAPI.QueryUserIDForSender(req.Context(), *validRoomID, spec.SenderID(ev.Sender))
+		if err != nil || userID == nil {
+			util.GetLogger(req.Context()).WithError(err).Error("rsAPI.QueryUserIDForSender failed")
+			return util.JSONResponse{
+				Code: http.StatusInternalServerError,
+				JSON: spec.InternalServerError{},
+			}
+		}
+
+		res.Joined[userID.String()] = joinedMember(content)
+	}
+	return util.JSONResponse{
+		Code: http.StatusOK,
+		JSON: res,
+	}
+}

clientapi/routing/password.go

@@ -73,7 +73,7 @@ func Password(
 
 	// Check if the existing password is correct.
 	typePassword := auth.LoginTypePassword{
-		GetAccountByPassword: userAPI.QueryAccountByPassword,
+		UserAPI: userAPI,
 		Config:  cfg,
 	}
 	if _, authErr := typePassword.Login(req.Context(), &r.Auth.PasswordRequest); authErr != nil {

clientapi/routing/profile.go

@@ -16,6 +16,7 @@ package routing
 
 import (
 	"context"
+	"fmt"
 	"net/http"
 	"time"
 
@@ -104,12 +105,6 @@ func SetAvatarURL(
 	if resErr := httputil.UnmarshalJSONRequest(req, &r); resErr != nil {
 		return *resErr
 	}
-	if r.AvatarURL == "" {
-		return util.JSONResponse{
-			Code: http.StatusBadRequest,
-			JSON: spec.BadJSON("'avatar_url' must be supplied."),
-		}
-	}
 
 	localpart, domain, err := gomatrixserverlib.SplitID('@', userID)
 	if err != nil {
@@ -151,7 +146,7 @@ func SetAvatarURL(
 		}
 	}
 
-	response, err := updateProfile(req.Context(), rsAPI, device, profile, userID, cfg, evTime)
+	response, err := updateProfile(req.Context(), rsAPI, device, profile, userID, evTime)
 	if err != nil {
 		return response
 	}
@@ -199,12 +194,6 @@ func SetDisplayName(
 	if resErr := httputil.UnmarshalJSONRequest(req, &r); resErr != nil {
 		return *resErr
 	}
-	if r.DisplayName == "" {
-		return util.JSONResponse{
-			Code: http.StatusBadRequest,
-			JSON: spec.BadJSON("'displayname' must be supplied."),
-		}
-	}
 
 	localpart, domain, err := gomatrixserverlib.SplitID('@', userID)
 	if err != nil {
@@ -246,7 +235,7 @@ func SetDisplayName(
 		}
 	}
 
-	response, err := updateProfile(req.Context(), rsAPI, device, profile, userID, cfg, evTime)
+	response, err := updateProfile(req.Context(), rsAPI, device, profile, userID, evTime)
 	if err != nil {
 		return response
 	}
@@ -260,13 +249,17 @@ func SetDisplayName(
 func updateProfile(
 	ctx context.Context, rsAPI api.ClientRoomserverAPI, device *userapi.Device,
 	profile *authtypes.Profile,
-	userID string, cfg *config.ClientAPI, evTime time.Time,
+	userID string, evTime time.Time,
 ) (util.JSONResponse, error) {
-	var res api.QueryRoomsForUserResponse
+	deviceUserID, err := spec.NewUserID(device.UserID, true)
-	err := rsAPI.QueryRoomsForUser(ctx, &api.QueryRoomsForUserRequest{
+	if err != nil {
-		UserID:         device.UserID,
+		return util.JSONResponse{
-		WantMembership: "join",
+			Code: http.StatusInternalServerError,
-	}, &res)
+			JSON: spec.Unknown("internal server error"),
+		}, err
+	}
+
+	rooms, err := rsAPI.QueryRoomsForUser(ctx, *deviceUserID, "join")
 	if err != nil {
 		util.GetLogger(ctx).WithError(err).Error("QueryRoomsForUser failed")
 		return util.JSONResponse{
@@ -275,6 +268,11 @@ func updateProfile(
 		}, err
 	}
 
+	roomIDStrs := make([]string, len(rooms))
+	for i, room := range rooms {
+		roomIDStrs[i] = room.String()
+	}
+
 	_, domain, err := gomatrixserverlib.SplitID('@', userID)
 	if err != nil {
 		util.GetLogger(ctx).WithError(err).Error("gomatrixserverlib.SplitID failed")
@@ -285,7 +283,7 @@ func updateProfile(
 	}
 
 	events, err := buildMembershipEvents(
-		ctx, device, res.RoomIDs, *profile, userID, cfg, evTime, rsAPI,
+		ctx, roomIDStrs, *profile, userID, evTime, rsAPI,
 	)
 	switch e := err.(type) {
 	case nil:
@@ -302,7 +300,7 @@ func updateProfile(
 		}, e
 	}
 
-	if err := api.SendEvents(ctx, rsAPI, api.KindNew, events, device.UserDomain(), domain, domain, nil, true); err != nil {
+	if err := api.SendEvents(ctx, rsAPI, api.KindNew, events, device.UserDomain(), domain, domain, nil, false); err != nil {
 		util.GetLogger(ctx).WithError(err).Error("SendEvents failed")
 		return util.JSONResponse{
 			Code: http.StatusInternalServerError,
@@ -356,9 +354,8 @@ func getProfile(
 
 func buildMembershipEvents(
 	ctx context.Context,
-	device *userapi.Device,
 	roomIDs []string,
-	newProfile authtypes.Profile, userID string, cfg *config.ClientAPI,
+	newProfile authtypes.Profile, userID string,
 	evTime time.Time, rsAPI api.ClientRoomserverAPI,
 ) ([]*types.HeaderedEvent, error) {
 	evs := []*types.HeaderedEvent{}
@@ -375,8 +372,10 @@ func buildMembershipEvents(
 		senderID, err := rsAPI.QuerySenderIDForUser(ctx, *validRoomID, *fullUserID)
 		if err != nil {
 			return nil, err
+		} else if senderID == nil {
+			return nil, fmt.Errorf("sender ID not found for %s in %s", *fullUserID, *validRoomID)
 		}
-		senderIDString := string(senderID)
+		senderIDString := string(*senderID)
 		proto := gomatrixserverlib.ProtoEvent{
 			SenderID: senderIDString,
 			RoomID:   roomID,
@@ -395,12 +394,17 @@ func buildMembershipEvents(
 			return nil, err
 		}
 
-		identity, err := cfg.Matrix.SigningIdentityFor(device.UserDomain())
+		user, err := spec.NewUserID(userID, true)
 		if err != nil {
 			return nil, err
 		}
 
-		event, err := eventutil.QueryAndBuildEvent(ctx, &proto, identity, evTime, rsAPI, nil)
+		identity, err := rsAPI.SigningIdentityFor(ctx, *validRoomID, *user)
+		if err != nil {
+			return nil, err
+		}
+
+		event, err := eventutil.QueryAndBuildEvent(ctx, &proto, &identity, evTime, rsAPI, nil)
 		if err != nil {
 			return nil, err
 		}

clientapi/routing/receipt.go

@@ -23,13 +23,12 @@ import (
 	"github.com/matrix-org/dendrite/clientapi/producers"
 	"github.com/matrix-org/gomatrixserverlib/spec"
 
-	"github.com/matrix-org/dendrite/userapi/api"
 	userapi "github.com/matrix-org/dendrite/userapi/api"
 	"github.com/matrix-org/util"
 	"github.com/sirupsen/logrus"
 )
 
-func SetReceipt(req *http.Request, userAPI api.ClientUserAPI, syncProducer *producers.SyncAPIProducer, device *userapi.Device, roomID, receiptType, eventID string) util.JSONResponse {
+func SetReceipt(req *http.Request, userAPI userapi.ClientUserAPI, syncProducer *producers.SyncAPIProducer, device *userapi.Device, roomID, receiptType, eventID string) util.JSONResponse {
 	timestamp := spec.AsTimestamp(time.Now())
 	logrus.WithFields(logrus.Fields{
 		"roomID":      roomID,
@@ -54,13 +53,13 @@ func SetReceipt(req *http.Request, userAPI api.ClientUserAPI, syncProducer *prod
 			}
 		}
 
-		dataReq := api.InputAccountDataRequest{
+		dataReq := userapi.InputAccountDataRequest{
 			UserID:      device.UserID,
 			DataType:    "m.fully_read",
 			RoomID:      roomID,
 			AccountData: data,
 		}
-		dataRes := api.InputAccountDataResponse{}
+		dataRes := userapi.InputAccountDataResponse{}
 		if err := userAPI.InputAccountData(req.Context(), &dataReq, &dataRes); err != nil {
 			util.GetLogger(req.Context()).WithError(err).Error("userAPI.InputAccountData failed")
 			return util.ErrorResponse(err)

clientapi/routing/redaction.go

@@ -35,6 +35,7 @@ import (
 
 type redactionContent struct {
 	Reason  string `json:"reason"`
+	Redacts string `json:"redacts"`
 }
 
 type redactionResponse struct {
@@ -74,6 +75,16 @@ func SendRedaction(
 		return *resErr
 	}
 
+	// if user is member of room, and sender ID is nil, then this user doesn't have a pseudo ID for some reason,
+	// which is unexpected.
+	if senderID == nil {
+		util.GetLogger(req.Context()).WithField("userID", *deviceUserID).WithField("roomID", roomID).Error("missing sender ID for user, despite having membership")
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.Unknown("internal server error"),
+		}
+	}
+
 	if txnID != nil {
 		// Try to fetch response from transactionsCache
 		if res, ok := txnCache.FetchTransaction(device.AccessToken, *txnID, req.URL); ok {
@@ -88,7 +99,7 @@ func SendRedaction(
 			JSON: spec.NotFound("unknown event ID"), // TODO: is it ok to leak existence?
 		}
 	}
-	if ev.RoomID() != roomID {
+	if ev.RoomID().String() != roomID {
 		return util.JSONResponse{
 			Code: 400,
 			JSON: spec.NotFound("cannot redact event in another room"),
@@ -98,7 +109,7 @@ func SendRedaction(
 	// "Users may redact their own events, and any user with a power level greater than or equal
 	// to the redact power level of the room may redact events there"
 	// https://matrix.org/docs/spec/client_server/r0.6.1#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
-	allowedToRedact := ev.SenderID() == senderID
+	allowedToRedact := ev.SenderID() == *senderID
 	if !allowedToRedact {
 		plEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
 			EventType: spec.MRoomPowerLevels,
@@ -119,7 +130,7 @@ func SendRedaction(
 				),
 			}
 		}
-		allowedToRedact = pl.UserLevel(senderID) >= pl.Redact
+		allowedToRedact = pl.UserLevel(*senderID) >= pl.Redact
 	}
 	if !allowedToRedact {
 		return util.JSONResponse{
@@ -136,11 +147,16 @@ func SendRedaction(
 
 	// create the new event and set all the fields we can
 	proto := gomatrixserverlib.ProtoEvent{
-		SenderID: string(senderID),
+		SenderID: string(*senderID),
 		RoomID:   roomID,
 		Type:     spec.MRoomRedaction,
 		Redacts:  eventID,
 	}
+
+	// Room version 11 expects the "redacts" field on the
+	// content field, so add it here as well
+	r.Redacts = eventID
+
 	err = proto.SetContent(r)
 	if err != nil {
 		util.GetLogger(req.Context()).WithError(err).Error("proto.SetContent failed")
@@ -150,7 +166,7 @@ func SendRedaction(
 		}
 	}
 
-	identity, err := cfg.Matrix.SigningIdentityFor(device.UserDomain())
+	identity, err := rsAPI.SigningIdentityFor(req.Context(), *validRoomID, *deviceUserID)
 	if err != nil {
 		return util.JSONResponse{
 			Code: http.StatusInternalServerError,
@@ -159,7 +175,7 @@ func SendRedaction(
 	}
 
 	var queryRes roomserverAPI.QueryLatestEventsAndStateResponse
-	e, err := eventutil.QueryAndBuildEvent(req.Context(), &proto, identity, time.Now(), rsAPI, &queryRes)
+	e, err := eventutil.QueryAndBuildEvent(req.Context(), &proto, &identity, time.Now(), rsAPI, &queryRes)
 	if errors.Is(err, eventutil.ErrRoomNoExists{}) {
 		return util.JSONResponse{
 			Code: http.StatusNotFound,

clientapi/routing/register.go

@@ -236,7 +236,7 @@ type authDict struct {
 	// TODO: Lots of custom keys depending on the type
 }
 
-// http://matrix.org/speculator/spec/HEAD/client_server/unstable.html#user-interactive-authentication-api
+// https://spec.matrix.org/v1.7/client-server-api/#user-interactive-authentication-api
 type userInteractiveResponse struct {
 	Flows     []authtypes.Flow       `json:"flows"`
 	Completed []authtypes.LoginType  `json:"completed"`
@@ -256,7 +256,7 @@ func newUserInteractiveResponse(
 	}
 }
 
-// http://matrix.org/speculator/spec/HEAD/client_server/unstable.html#post-matrix-client-unstable-register
+// https://spec.matrix.org/v1.7/client-server-api/#post_matrixclientv3register
 type registerResponse struct {
 	UserID      string `json:"user_id"`
 	AccessToken string `json:"access_token,omitempty"`
@@ -462,7 +462,7 @@ func validateApplicationService(
 }
 
 // Register processes a /register request.
-// http://matrix.org/speculator/spec/HEAD/client_server/unstable.html#post-matrix-client-unstable-register
+// https://spec.matrix.org/v1.7/client-server-api/#post_matrixclientv3register
 func Register(
 	req *http.Request,
 	userAPI userapi.ClientUserAPI,
@@ -630,6 +630,7 @@ func handleGuestRegistration(
 		AccessToken:       token,
 		IPAddr:            req.RemoteAddr,
 		UserAgent:         req.UserAgent(),
+		FromRegistration:  true,
 	}, &devRes)
 	if err != nil {
 		return util.JSONResponse{
@@ -647,6 +648,16 @@ func handleGuestRegistration(
 	}
 }
 
+// localpartMatchesExclusiveNamespaces will check if a given username matches any
+// application service's exclusive users namespace
+func localpartMatchesExclusiveNamespaces(
+	cfg *config.ClientAPI,
+	localpart string,
+) bool {
+	userID := userutil.MakeUserID(localpart, cfg.Matrix.ServerName)
+	return cfg.Derived.ExclusiveApplicationServicesUsernameRegexp.MatchString(userID)
+}
+
 // handleRegistrationFlow will direct and complete registration flow stages
 // that the client has requested.
 // nolint: gocyclo
@@ -695,7 +706,7 @@ func handleRegistrationFlow(
 	// If an access token is provided, ignore this check this is an appservice
 	// request and we will validate in validateApplicationService
 	if len(cfg.Derived.ApplicationServices) != 0 &&
-		UsernameMatchesExclusiveNamespaces(cfg, r.Username) {
+		localpartMatchesExclusiveNamespaces(cfg, r.Username) {
 		return util.JSONResponse{
 			Code: http.StatusBadRequest,
 			JSON: spec.ASExclusive("This username is reserved by an application service."),
@@ -772,7 +783,7 @@ func handleApplicationServiceRegistration(
 
 	// Check application service register user request is valid.
 	// The application service's ID is returned if so.
-	appserviceID, err := validateApplicationService(
+	appserviceID, err := internal.ValidateApplicationServiceRequest(
 		cfg, r.Username, accessToken,
 	)
 	if err != nil {
@@ -909,6 +920,7 @@ func completeRegistration(
 		DeviceID:          deviceID,
 		IPAddr:            ipAddr,
 		UserAgent:         userAgent,
+		FromRegistration:  true,
 	}, &devRes)
 	if err != nil {
 		return util.JSONResponse{

clientapi/routing/register_test.go

@@ -298,13 +298,16 @@ func Test_register(t *testing.T) {
 		guestsDisabled       bool
 		enableRecaptcha      bool
 		captchaBody          string
-		wantResponse         util.JSONResponse
+		// in case of an error, the expected response
+		wantErrorResponse util.JSONResponse
+		// in case of success, the expected username assigned
+		wantUsername string
 	}{
 		{
 			name:           "disallow guests",
 			kind:           "guest",
 			guestsDisabled: true,
-			wantResponse: util.JSONResponse{
+			wantErrorResponse: util.JSONResponse{
 				Code: http.StatusForbidden,
 				JSON: spec.Forbidden(`Guest registration is disabled on "test"`),
 			},
@@ -312,11 +315,12 @@ func Test_register(t *testing.T) {
 		{
 			name:         "allow guests",
 			kind:         "guest",
+			wantUsername: "1",
 		},
 		{
 			name:      "unknown login type",
 			loginType: "im.not.known",
-			wantResponse: util.JSONResponse{
+			wantErrorResponse: util.JSONResponse{
 				Code: http.StatusNotImplemented,
 				JSON: spec.Unknown("unknown/unimplemented auth type"),
 			},
@@ -324,7 +328,7 @@ func Test_register(t *testing.T) {
 		{
 			name:                 "disabled registration",
 			registrationDisabled: true,
-			wantResponse: util.JSONResponse{
+			wantErrorResponse: util.JSONResponse{
 				Code: http.StatusForbidden,
 				JSON: spec.Forbidden(`Registration is disabled on "test"`),
 			},
@@ -334,15 +338,23 @@ func Test_register(t *testing.T) {
 			username:     "",
 			password:     "someRandomPassword",
 			forceEmpty:   true,
+			wantUsername: "2",
 		},
 		{
 			name:     "successful registration",
 			username: "success",
 		},
+		{
+			name:         "successful registration, sequential numeric ID",
+			username:     "",
+			password:     "someRandomPassword",
+			forceEmpty:   true,
+			wantUsername: "3",
+		},
 		{
 			name:     "failing registration - user already exists",
 			username: "success",
-			wantResponse: util.JSONResponse{
+			wantErrorResponse: util.JSONResponse{
 				Code: http.StatusBadRequest,
 				JSON: spec.UserInUse("Desired user ID is already taken."),
 			},
@@ -354,12 +366,12 @@ func Test_register(t *testing.T) {
 		{
 			name:              "invalid username",
 			username:          "#totalyNotValid",
-			wantResponse: *internal.UsernameResponse(internal.ErrUsernameInvalid),
+			wantErrorResponse: *internal.UsernameResponse(internal.ErrUsernameInvalid),
 		},
 		{
 			name:     "numeric username is forbidden",
 			username: "1337",
-			wantResponse: util.JSONResponse{
+			wantErrorResponse: util.JSONResponse{
 				Code: http.StatusBadRequest,
 				JSON: spec.InvalidUsername("Numeric user IDs are reserved"),
 			},
@@ -367,7 +379,7 @@ func Test_register(t *testing.T) {
 		{
 			name:      "disabled recaptcha login",
 			loginType: authtypes.LoginTypeRecaptcha,
-			wantResponse: util.JSONResponse{
+			wantErrorResponse: util.JSONResponse{
 				Code: http.StatusForbidden,
 				JSON: spec.Unknown(ErrCaptchaDisabled.Error()),
 			},
@@ -376,7 +388,7 @@ func Test_register(t *testing.T) {
 			name:            "enabled recaptcha, no response defined",
 			enableRecaptcha: true,
 			loginType:       authtypes.LoginTypeRecaptcha,
-			wantResponse: util.JSONResponse{
+			wantErrorResponse: util.JSONResponse{
 				Code: http.StatusBadRequest,
 				JSON: spec.BadJSON(ErrMissingResponse.Error()),
 			},
@@ -386,7 +398,7 @@ func Test_register(t *testing.T) {
 			enableRecaptcha: true,
 			loginType:       authtypes.LoginTypeRecaptcha,
 			captchaBody:     `notvalid`,
-			wantResponse: util.JSONResponse{
+			wantErrorResponse: util.JSONResponse{
 				Code: http.StatusUnauthorized,
 				JSON: spec.BadJSON(ErrInvalidCaptcha.Error()),
 			},
@@ -402,7 +414,7 @@ func Test_register(t *testing.T) {
 			enableRecaptcha:   true,
 			loginType:         authtypes.LoginTypeRecaptcha,
 			captchaBody:       `i should fail for other reasons`,
-			wantResponse:    util.JSONResponse{Code: http.StatusInternalServerError, JSON: spec.InternalServerError{}},
+			wantErrorResponse: util.JSONResponse{Code: http.StatusInternalServerError, JSON: spec.InternalServerError{}},
 		},
 	}
 
@@ -415,7 +427,8 @@ func Test_register(t *testing.T) {
 
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 
 		for _, tc := range testCases {
 			t.Run(tc.name, func(t *testing.T) {
@@ -485,8 +498,8 @@ func Test_register(t *testing.T) {
 						t.Fatalf("unexpected registration flows: %+v, want %+v", r.Flows, cfg.Derived.Registration.Flows)
 					}
 				case spec.MatrixError:
-					if !reflect.DeepEqual(tc.wantResponse, resp) {
+					if !reflect.DeepEqual(tc.wantErrorResponse, resp) {
-						t.Fatalf("(%s), unexpected response: %+v, want: %+v", tc.name, resp, tc.wantResponse)
+						t.Fatalf("(%s), unexpected response: %+v, want: %+v", tc.name, resp, tc.wantErrorResponse)
 					}
 					return
 				case registerResponse:
@@ -504,6 +517,13 @@ func Test_register(t *testing.T) {
 					if r.DeviceID == "" {
 						t.Fatalf("missing deviceID in response")
 					}
+					// if an expected username is provided, assert that it is a match
+					if tc.wantUsername != "" {
+						wantUserID := strings.ToLower(fmt.Sprintf("@%s:%s", tc.wantUsername, "test"))
+						if wantUserID != r.UserID {
+							t.Fatalf("unexpected userID: %s, want %s", r.UserID, wantUserID)
+						}
+					}
 					return
 				default:
 					t.Logf("Got response: %T", resp.JSON)
@@ -540,45 +560,30 @@ func Test_register(t *testing.T) {
 
 				resp = Register(req, userAPI, &cfg.ClientAPI)
 
-				switch resp.JSON.(type) {
+				switch rr := resp.JSON.(type) {
-				case spec.InternalServerError:
+				case spec.InternalServerError, spec.MatrixError, util.JSONResponse:
-					if !reflect.DeepEqual(tc.wantResponse, resp) {
+					if !reflect.DeepEqual(tc.wantErrorResponse, resp) {
-						t.Fatalf("unexpected response: %+v, want: %+v", resp, tc.wantResponse)
+						t.Fatalf("unexpected response: %+v, want: %+v", resp, tc.wantErrorResponse)
 					}
 					return
-				case spec.MatrixError:
+				case registerResponse:
-					if !reflect.DeepEqual(tc.wantResponse, resp) {
-						t.Fatalf("unexpected response: %+v, want: %+v", resp, tc.wantResponse)
-					}
-					return
-				case util.JSONResponse:
-					if !reflect.DeepEqual(tc.wantResponse, resp) {
-						t.Fatalf("unexpected response: %+v, want: %+v", resp, tc.wantResponse)
-					}
-					return
-				}
-
-				rr, ok := resp.JSON.(registerResponse)
-				if !ok {
-					t.Fatalf("expected a registerresponse, got %T", resp.JSON)
-				}
-
 					// validate the response
-				if tc.forceEmpty {
+					if tc.wantUsername != "" {
-					// when not supplying a username, one will be generated. Given this _SHOULD_ be
+						// if an expected username is provided, assert that it is a match
-					// the second user, set the username accordingly
+						wantUserID := strings.ToLower(fmt.Sprintf("@%s:%s", tc.wantUsername, "test"))
-					reg.Username = "2"
-				}
-				wantUserID := strings.ToLower(fmt.Sprintf("@%s:%s", reg.Username, "test"))
 						if wantUserID != rr.UserID {
 							t.Fatalf("unexpected userID: %s, want %s", rr.UserID, wantUserID)
 						}
+					}
 					if rr.DeviceID != *reg.DeviceID {
 						t.Fatalf("unexpected deviceID: %s, want %s", rr.DeviceID, *reg.DeviceID)
 					}
 					if rr.AccessToken == "" {
 						t.Fatalf("missing accessToken in response")
 					}
+				default:
+					t.Fatalf("expected one of internalservererror, matrixerror, jsonresponse, registerresponse, got %T", resp.JSON)
+				}
 			})
 		}
 	})
@@ -594,7 +599,8 @@ func TestRegisterUserWithDisplayName(t *testing.T) {
 		natsInstance := jetstream.NATSInstance{}
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 		deviceName, deviceID := "deviceName", "deviceID"
 		expectedDisplayName := "DisplayName"
 		response := completeRegistration(
@@ -634,7 +640,8 @@ func TestRegisterAdminUsingSharedSecret(t *testing.T) {
 		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
 		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
 		rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.DisableMetrics)
-		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil)
+		rsAPI.SetFederationAPI(nil, nil)
+		userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, nil, caching.DisableMetrics, testIsBlacklistedOrBackingOff)
 
 		expectedDisplayName := "rabbit"
 		jsonStr := []byte(`{"admin":true,"mac":"24dca3bba410e43fe64b9b5c28306693bf3baa9f","nonce":"759f047f312b99ff428b21d581256f8592b8976e58bc1b543972dc6147e529a79657605b52d7becd160ff5137f3de11975684319187e06901955f79e5a6c5a79","password":"wonderland","username":"alice","displayname":"rabbit"}`)

clientapi/routing/report_event.go

@@ -0,0 +1,93 @@
+// Copyright 2023 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package routing
+
+import (
+	"net/http"
+
+	"github.com/matrix-org/dendrite/clientapi/httputil"
+	"github.com/matrix-org/dendrite/roomserver/api"
+	userAPI "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/gomatrixserverlib/spec"
+	"github.com/matrix-org/util"
+)
+
+type reportEventRequest struct {
+	Reason string `json:"reason"`
+	Score  int64  `json:"score"`
+}
+
+func ReportEvent(
+	req *http.Request,
+	device *userAPI.Device,
+	roomID, eventID string,
+	rsAPI api.ClientRoomserverAPI,
+) util.JSONResponse {
+	defer req.Body.Close() // nolint: errcheck
+
+	deviceUserID, err := spec.NewUserID(device.UserID, true)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: spec.NotFound("You don't have permission to report this event, bad userID"),
+		}
+	}
+	// The requesting user must be a member of the room
+	errRes := checkMemberInRoom(req.Context(), rsAPI, *deviceUserID, roomID)
+	if errRes != nil {
+		return util.JSONResponse{
+			Code: http.StatusNotFound, // Spec demands this...
+			JSON: spec.NotFound("The event was not found or you are not joined to the room."),
+		}
+	}
+
+	// Parse the request
+	report := reportEventRequest{}
+	if resErr := httputil.UnmarshalJSONRequest(req, &report); resErr != nil {
+		return *resErr
+	}
+
+	queryRes := &api.QueryEventsByIDResponse{}
+	if err = rsAPI.QueryEventsByID(req.Context(), &api.QueryEventsByIDRequest{
+		RoomID:   roomID,
+		EventIDs: []string{eventID},
+	}, queryRes); err != nil {
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.InternalServerError{Err: err.Error()},
+		}
+	}
+
+	// No event was found or it was already redacted
+	if len(queryRes.Events) == 0 || queryRes.Events[0].Redacted() {
+		return util.JSONResponse{
+			Code: http.StatusNotFound,
+			JSON: spec.NotFound("The event was not found or you are not joined to the room."),
+		}
+	}
+
+	_, err = rsAPI.InsertReportedEvent(req.Context(), roomID, eventID, device.UserID, report.Reason, report.Score)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: spec.InternalServerError{Err: err.Error()},
+		}
+	}
+
+	return util.JSONResponse{
+		Code: http.StatusOK,
+		JSON: struct{}{},
+	}
+}

clientapi/routing/room_hierarchy.go

@@ -0,0 +1,180 @@
+// Copyright 2023 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package routing
+
+import (
+	"net/http"
+	"strconv"
+	"sync"
+
+	"github.com/google/uuid"
+	roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
+	"github.com/matrix-org/dendrite/roomserver/types"
+	userapi "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/gomatrixserverlib/fclient"
+	"github.com/matrix-org/gomatrixserverlib/spec"
+	"github.com/matrix-org/util"
+	log "github.com/sirupsen/logrus"
+)
+
+// For storing pagination information for room hierarchies
+type RoomHierarchyPaginationCache struct {
+	cache map[string]roomserverAPI.RoomHierarchyWalker
+	mu    sync.Mutex
+}
+
+// Create a new, empty, pagination cache.
+func NewRoomHierarchyPaginationCache() RoomHierarchyPaginationCache {
+	return RoomHierarchyPaginationCache{
+		cache: map[string]roomserverAPI.RoomHierarchyWalker{},
+	}
+}
+
+// Get a cached page, or nil if there is no associated page in the cache.
+func (c *RoomHierarchyPaginationCache) Get(token string) *roomserverAPI.RoomHierarchyWalker {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	line, ok := c.cache[token]
+	if ok {
+		return &line
+	} else {
+		return nil
+	}
+}
+
+// Add a cache line to the pagination cache.
+func (c *RoomHierarchyPaginationCache) AddLine(line roomserverAPI.RoomHierarchyWalker) string {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	token := uuid.NewString()
+	c.cache[token] = line
+	return token
+}
+
+// Query the hierarchy of a room/space
+//
+// Implements /_matrix/client/v1/rooms/{roomID}/hierarchy
+func QueryRoomHierarchy(req *http.Request, device *userapi.Device, roomIDStr string, rsAPI roomserverAPI.ClientRoomserverAPI, paginationCache *RoomHierarchyPaginationCache) util.JSONResponse {
+	parsedRoomID, err := spec.NewRoomID(roomIDStr)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusNotFound,
+			JSON: spec.InvalidParam("room is unknown/forbidden"),
+		}
+	}
+	roomID := *parsedRoomID
+
+	suggestedOnly := false // Defaults to false (spec-defined)
+	switch req.URL.Query().Get("suggested_only") {
+	case "true":
+		suggestedOnly = true
+	case "false":
+	case "": // Empty string is returned when query param is not set
+	default:
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.InvalidParam("query parameter 'suggested_only', if set, must be 'true' or 'false'"),
+		}
+	}
+
+	limit := 1000 // Default to 1000
+	limitStr := req.URL.Query().Get("limit")
+	if limitStr != "" {
+		var maybeLimit int
+		maybeLimit, err = strconv.Atoi(limitStr)
+		if err != nil || maybeLimit < 0 {
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: spec.InvalidParam("query parameter 'limit', if set, must be a positive integer"),
+			}
+		}
+		limit = maybeLimit
+		if limit > 1000 {
+			limit = 1000 // Maximum limit of 1000
+		}
+	}
+
+	maxDepth := -1 // '-1' representing no maximum depth
+	maxDepthStr := req.URL.Query().Get("max_depth")
+	if maxDepthStr != "" {
+		var maybeMaxDepth int
+		maybeMaxDepth, err = strconv.Atoi(maxDepthStr)
+		if err != nil || maybeMaxDepth < 0 {
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: spec.InvalidParam("query parameter 'max_depth', if set, must be a positive integer"),
+			}
+		}
+		maxDepth = maybeMaxDepth
+	}
+
+	from := req.URL.Query().Get("from")
+
+	var walker roomserverAPI.RoomHierarchyWalker
+	if from == "" { // No pagination token provided, so start new hierarchy walker
+		walker = roomserverAPI.NewRoomHierarchyWalker(types.NewDeviceNotServerName(*device), roomID, suggestedOnly, maxDepth)
+	} else { // Attempt to resume cached walker
+		cachedWalker := paginationCache.Get(from)
+
+		if cachedWalker == nil || cachedWalker.SuggestedOnly != suggestedOnly || cachedWalker.MaxDepth != maxDepth {
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: spec.InvalidParam("pagination not found for provided token ('from') with given 'max_depth', 'suggested_only' and room ID"),
+			}
+		}
+
+		walker = *cachedWalker
+	}
+
+	discoveredRooms, _, nextWalker, err := rsAPI.QueryNextRoomHierarchyPage(req.Context(), walker, limit)
+
+	if err != nil {
+		switch err.(type) {
+		case roomserverAPI.ErrRoomUnknownOrNotAllowed:
+			util.GetLogger(req.Context()).WithError(err).Debugln("room unknown/forbidden when handling CS room hierarchy request")
+			return util.JSONResponse{
+				Code: http.StatusForbidden,
+				JSON: spec.Forbidden("room is unknown/forbidden"),
+			}
+		default:
+			log.WithError(err).Errorf("failed to fetch next page of room hierarchy (CS API)")
+			return util.JSONResponse{
+				Code: http.StatusInternalServerError,
+				JSON: spec.Unknown("internal server error"),
+			}
+		}
+	}
+
+	nextBatch := ""
+	// nextWalker will be nil if there's no more rooms left to walk
+	if nextWalker != nil {
+		nextBatch = paginationCache.AddLine(*nextWalker)
+	}
+
+	return util.JSONResponse{
+		Code: http.StatusOK,
+		JSON: RoomHierarchyClientResponse{
+			Rooms:     discoveredRooms,
+			NextBatch: nextBatch,
+		},
+	}
+
+}
+
+// Success response for /_matrix/client/v1/rooms/{roomID}/hierarchy
+type RoomHierarchyClientResponse struct {
+	Rooms     []fclient.RoomHierarchyRoom `json:"rooms"`
+	NextBatch string                      `json:"next_batch,omitempty"`
+}

clientapi/routing/routing.go

@@ -44,6 +44,19 @@ import (
 	"github.com/matrix-org/dendrite/setup/jetstream"
 )
 
+type WellKnownClientHomeserver struct {
+	BaseUrl string `json:"base_url"`
+}
+
+type WellKnownSlidingSyncProxy struct {
+	Url string `json:"url"`
+}
+
+type WellKnownClientResponse struct {
+	Homeserver       WellKnownClientHomeserver  `json:"m.homeserver"`
+	SlidingSyncProxy *WellKnownSlidingSyncProxy `json:"org.matrix.msc3575.proxy,omitempty"`
+}
+
 // Setup registers HTTP handlers with the given ServeMux. It also supplies the given http.Client
 // to clients which need to make outbound HTTP requests.
 //
@@ -96,20 +109,22 @@ func Setup(
 
 	if cfg.Matrix.WellKnownClientName != "" {
 		logrus.Infof("Setting m.homeserver base_url as %s at /.well-known/matrix/client", cfg.Matrix.WellKnownClientName)
+		if cfg.Matrix.WellKnownSlidingSyncProxy != "" {
+			logrus.Infof("Setting org.matrix.msc3575.proxy url as %s at /.well-known/matrix/client", cfg.Matrix.WellKnownSlidingSyncProxy)
+		}
 		wkMux.Handle("/client", httputil.MakeExternalAPI("wellknown", func(r *http.Request) util.JSONResponse {
+			response := WellKnownClientResponse{
+				Homeserver: WellKnownClientHomeserver{cfg.Matrix.WellKnownClientName},
+			}
+			if cfg.Matrix.WellKnownSlidingSyncProxy != "" {
+				response.SlidingSyncProxy = &WellKnownSlidingSyncProxy{
+					Url: cfg.Matrix.WellKnownSlidingSyncProxy,
+				}
+			}
+
 			return util.JSONResponse{
 				Code: http.StatusOK,
-				JSON: struct {
+				JSON: response,
-					HomeserverName struct {
-						BaseUrl string `json:"base_url"`
-					} `json:"m.homeserver"`
-				}{
-					HomeserverName: struct {
-						BaseUrl string `json:"base_url"`
-					}{
-						BaseUrl: cfg.Matrix.WellKnownClientName,
-					},
-				},
 			}
 		})).Methods(http.MethodGet, http.MethodOptions)
 	}
@@ -162,6 +177,36 @@ func Setup(
 			}),
 		).Methods(http.MethodGet, http.MethodPost, http.MethodOptions)
 	}
+	dendriteAdminRouter.Handle("/admin/registrationTokens/new",
+		httputil.MakeAdminAPI("admin_registration_tokens_new", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+			return AdminCreateNewRegistrationToken(req, cfg, userAPI)
+		}),
+	).Methods(http.MethodPost, http.MethodOptions)
+
+	dendriteAdminRouter.Handle("/admin/registrationTokens",
+		httputil.MakeAdminAPI("admin_list_registration_tokens", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+			return AdminListRegistrationTokens(req, cfg, userAPI)
+		}),
+	).Methods(http.MethodGet, http.MethodOptions)
+
+	dendriteAdminRouter.Handle("/admin/registrationTokens/{token}",
+		httputil.MakeAdminAPI("admin_get_registration_token", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+			switch req.Method {
+			case http.MethodGet:
+				return AdminGetRegistrationToken(req, cfg, userAPI)
+			case http.MethodPut:
+				return AdminUpdateRegistrationToken(req, cfg, userAPI)
+			case http.MethodDelete:
+				return AdminDeleteRegistrationToken(req, cfg, userAPI)
+			default:
+				return util.MatrixErrorResponse(
+					404,
+					string(spec.ErrorNotFound),
+					"unknown method",
+				)
+			}
+		}),
+	).Methods(http.MethodGet, http.MethodPut, http.MethodDelete, http.MethodOptions)
 
 	dendriteAdminRouter.Handle("/admin/evacuateRoom/{roomID}",
 		httputil.MakeAdminAPI("admin_evacuate_room", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
@@ -210,7 +255,7 @@ func Setup(
 		logrus.Info("Enabling server notices at /_synapse/admin/v1/send_server_notice")
 		serverNotificationSender, err := getSenderDevice(context.Background(), rsAPI, userAPI, cfg)
 		if err != nil {
-			logrus.WithError(err).Fatal("unable to get account for sending sending server notices")
+			logrus.WithError(err).Fatal("unable to get account for sending server notices")
 		}
 
 		synapseAdminRouter.Handle("/admin/v1/send_server_notice/{txnID}",
@@ -258,6 +303,8 @@ func Setup(
 	// Note that 'apiversion' is chosen because it must not collide with a variable used in any of the routing!
 	v3mux := publicAPIMux.PathPrefix("/{apiversion:(?:r0|v3)}/").Subrouter()
 
+	v1mux := publicAPIMux.PathPrefix("/v1/").Subrouter()
+
 	unstableMux := publicAPIMux.PathPrefix("/unstable").Subrouter()
 
 	v3mux.Handle("/createRoom",
@@ -475,6 +522,19 @@ func Setup(
 		}, httputil.WithAllowGuests()),
 	).Methods(http.MethodPut, http.MethodOptions)
 
+	// Defined outside of handler to persist between calls
+	// TODO: clear based on some criteria
+	roomHierarchyPaginationCache := NewRoomHierarchyPaginationCache()
+	v1mux.Handle("/rooms/{roomID}/hierarchy",
+		httputil.MakeAuthAPI("spaces", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+			vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
+			if err != nil {
+				return util.ErrorResponse(err)
+			}
+			return QueryRoomHierarchy(req, device, vars["roomID"], rsAPI, &roomHierarchyPaginationCache)
+		}, httputil.WithAllowGuests()),
+	).Methods(http.MethodGet, http.MethodOptions)
+
 	v3mux.Handle("/register", httputil.MakeExternalAPI("register", func(req *http.Request) util.JSONResponse {
 		if r := rateLimits.Limit(req, nil); r != nil {
 			return *r
@@ -1211,7 +1271,7 @@ func Setup(
 			if r := rateLimits.Limit(req, device); r != nil {
 				return *r
 			}
-			return GetCapabilities()
+			return GetCapabilities(rsAPI)
 		}, httputil.WithAllowGuests()),
 	).Methods(http.MethodGet, http.MethodOptions)
 
@@ -1388,7 +1448,7 @@ func Setup(
 	// Cross-signing device keys
 
 	postDeviceSigningKeys := httputil.MakeAuthAPI("post_device_signing_keys", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
-		return UploadCrossSigningDeviceKeys(req, userInteractiveAuth, userAPI, device, userAPI, cfg)
+		return UploadCrossSigningDeviceKeys(req, userAPI, device, userAPI, cfg)
 	})
 
 	postDeviceSigningSignatures := httputil.MakeAuthAPI("post_device_signing_signatures", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
@@ -1453,4 +1513,58 @@ func Setup(
 			return GetPresence(req, device, natsClient, cfg.Matrix.JetStream.Prefixed(jetstream.RequestPresence), vars["userId"])
 		}),
 	).Methods(http.MethodGet, http.MethodOptions)
+
+	v3mux.Handle("/rooms/{roomID}/joined_members",
+		httputil.MakeAuthAPI("rooms_members", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+			vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
+			if err != nil {
+				return util.ErrorResponse(err)
+			}
+			return GetJoinedMembers(req, device, vars["roomID"], rsAPI)
+		}),
+	).Methods(http.MethodGet, http.MethodOptions)
+
+	v3mux.Handle("/rooms/{roomID}/report/{eventID}",
+		httputil.MakeAuthAPI("report_event", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+			vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
+			if err != nil {
+				return util.ErrorResponse(err)
+			}
+			return ReportEvent(req, device, vars["roomID"], vars["eventID"], rsAPI)
+		}),
+	).Methods(http.MethodPost, http.MethodOptions)
+
+	synapseAdminRouter.Handle("/admin/v1/event_reports",
+		httputil.MakeAdminAPI("admin_report_events", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+			from := parseUint64OrDefault(req.URL.Query().Get("from"), 0)
+			limit := parseUint64OrDefault(req.URL.Query().Get("limit"), 100)
+			dir := req.URL.Query().Get("dir")
+			userID := req.URL.Query().Get("user_id")
+			roomID := req.URL.Query().Get("room_id")
+
+			// Go backwards if direction is empty or "b"
+			backwards := dir == "" || dir == "b"
+			return GetEventReports(req, rsAPI, from, limit, backwards, userID, roomID)
+		}),
+	).Methods(http.MethodGet, http.MethodOptions)
+
+	synapseAdminRouter.Handle("/admin/v1/event_reports/{reportID}",
+		httputil.MakeAdminAPI("admin_report_event", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+			vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
+			if err != nil {
+				return util.ErrorResponse(err)
+			}
+			return GetEventReport(req, rsAPI, vars["reportID"])
+		}),
+	).Methods(http.MethodGet, http.MethodOptions)
+
+	synapseAdminRouter.Handle("/admin/v1/event_reports/{reportID}",
+		httputil.MakeAdminAPI("admin_report_event_delete", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+			vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
+			if err != nil {
+				return util.ErrorResponse(err)
+			}
+			return DeleteEventReport(req, rsAPI, vars["reportID"])
+		}),
+	).Methods(http.MethodDelete, http.MethodOptions)
 }

clientapi/routing/sendevent.go

@@ -23,19 +23,19 @@ import (
 	"sync"
 	"time"
 
-	"github.com/matrix-org/gomatrixserverlib"
-	"github.com/matrix-org/gomatrixserverlib/spec"
-	"github.com/matrix-org/util"
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/sirupsen/logrus"
-
 	"github.com/matrix-org/dendrite/clientapi/httputil"
 	"github.com/matrix-org/dendrite/internal/eventutil"
 	"github.com/matrix-org/dendrite/internal/transactions"
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/dendrite/roomserver/types"
 	"github.com/matrix-org/dendrite/setup/config"
+	"github.com/matrix-org/dendrite/syncapi/synctypes"
 	userapi "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/gomatrixserverlib"
+	"github.com/matrix-org/gomatrixserverlib/spec"
+	"github.com/matrix-org/util"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/sirupsen/logrus"
 )
 
 // http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-send-eventtype-txnid
@@ -68,6 +68,8 @@ var sendEventDuration = prometheus.NewHistogramVec(
 //	/rooms/{roomID}/send/{eventType}
 //	/rooms/{roomID}/send/{eventType}/{txnID}
 //	/rooms/{roomID}/state/{eventType}/{stateKey}
+//
+// nolint: gocyclo
 func SendEvent(
 	req *http.Request,
 	device *userapi.Device,
@@ -91,6 +93,30 @@ func SendEvent(
 		}
 	}
 
+	// Translate user ID state keys to room keys in pseudo ID rooms
+	if roomVersion == gomatrixserverlib.RoomVersionPseudoIDs && stateKey != nil {
+		parsedRoomID, innerErr := spec.NewRoomID(roomID)
+		if innerErr != nil {
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: spec.InvalidParam("invalid room ID"),
+			}
+		}
+
+		newStateKey, innerErr := synctypes.FromClientStateKey(*parsedRoomID, *stateKey, func(roomID spec.RoomID, userID spec.UserID) (*spec.SenderID, error) {
+			return rsAPI.QuerySenderIDForUser(req.Context(), roomID, userID)
+		})
+		if innerErr != nil {
+			// TODO: work out better logic for failure cases (e.g. sender ID not found)
+			util.GetLogger(req.Context()).WithError(innerErr).Error("synctypes.FromClientStateKey failed")
+			return util.JSONResponse{
+				Code: http.StatusInternalServerError,
+				JSON: spec.Unknown("internal server error"),
+			}
+		}
+		stateKey = newStateKey
+	}
+
 	// create a mutex for the specific user in the specific room
 	// this avoids a situation where events that are received in quick succession are sent to the roomserver in a jumbled order
 	userID := device.UserID
@@ -121,6 +147,17 @@ func SendEvent(
 		delete(r, "join_authorised_via_users_server")
 	}
 
+	// for power level events we need to replace the userID with the pseudoID
+	if roomVersion == gomatrixserverlib.RoomVersionPseudoIDs && eventType == spec.MRoomPowerLevels {
+		err = updatePowerLevels(req, r, roomID, rsAPI)
+		if err != nil {
+			return util.JSONResponse{
+				Code: http.StatusInternalServerError,
+				JSON: spec.InternalServerError{Err: err.Error()},
+			}
+		}
+	}
+
 	evTime, err := httputil.ParseTSParam(req)
 	if err != nil {
 		return util.JSONResponse{
@@ -129,7 +166,7 @@ func SendEvent(
 		}
 	}
 
-	e, resErr := generateSendEvent(req.Context(), r, device, roomID, eventType, stateKey, cfg, rsAPI, evTime)
+	e, resErr := generateSendEvent(req.Context(), r, device, roomID, eventType, stateKey, rsAPI, evTime)
 	if resErr != nil {
 		return *resErr
 	}
@@ -187,7 +224,7 @@ func SendEvent(
 		req.Context(), rsAPI,
 		api.KindNew,
 		[]*types.HeaderedEvent{
-			&types.HeaderedEvent{PDU: e},
+			{PDU: e},
 		},
 		device.UserDomain(),
 		domain,
@@ -225,6 +262,35 @@ func SendEvent(
 	return res
 }
 
+func updatePowerLevels(req *http.Request, r map[string]interface{}, roomID string, rsAPI api.ClientRoomserverAPI) error {
+	users, ok := r["users"]
+	if !ok {
+		return nil
+	}
+	userMap := users.(map[string]interface{})
+	validRoomID, err := spec.NewRoomID(roomID)
+	if err != nil {
+		return err
+	}
+	for user, level := range userMap {
+		uID, err := spec.NewUserID(user, true)
+		if err != nil {
+			continue // we're modifying the map in place, so we're going to have invalid userIDs after the first iteration
+		}
+		senderID, err := rsAPI.QuerySenderIDForUser(req.Context(), *validRoomID, *uID)
+		if err != nil {
+			return err
+		} else if senderID == nil {
+			util.GetLogger(req.Context()).Warnf("sender ID not found for %s in %s", uID, *validRoomID)
+			continue
+		}
+		userMap[string(*senderID)] = level
+		delete(userMap, user)
+	}
+	r["users"] = userMap
+	return nil
+}
+
 // stateEqual compares the new and the existing state event content. If they are equal, returns a *util.JSONResponse
 // with the existing event_id, making this an idempotent request.
 func stateEqual(ctx context.Context, rsAPI api.ClientRoomserverAPI, eventType, stateKey, roomID string, newContent map[string]interface{}) *util.JSONResponse {
@@ -261,7 +327,6 @@ func generateSendEvent(
 	r map[string]interface{},
 	device *userapi.Device,
 	roomID, eventType string, stateKey *string,
-	cfg *config.ClientAPI,
 	rsAPI api.ClientRoomserverAPI,
 	evTime time.Time,
 ) (gomatrixserverlib.PDU, *util.JSONResponse) {
@@ -283,14 +348,21 @@ func generateSendEvent(
 	senderID, err := rsAPI.QuerySenderIDForUser(ctx, *validRoomID, *fullUserID)
 	if err != nil {
 		return nil, &util.JSONResponse{
-			Code: http.StatusNotFound,
+			Code: http.StatusInternalServerError,
-			JSON: spec.NotFound("Unable to find senderID for user"),
+			JSON: spec.NotFound("internal server error"),
+		}
+	} else if senderID == nil {
+		// TODO: is it always the case that lack of a sender ID means they're not joined?
+		//       And should this logic be deferred to the roomserver somehow?
+		return nil, &util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: spec.Forbidden("not joined to room"),
 		}
 	}
 
 	// create the new event and set all the fields we can
 	proto := gomatrixserverlib.ProtoEvent{
-		SenderID: string(senderID),
+		SenderID: string(*senderID),
 		RoomID:   roomID,
 		Type:     eventType,
 		StateKey: stateKey,
@@ -304,7 +376,7 @@ func generateSendEvent(
 		}
 	}
 
-	identity, err := cfg.Matrix.SigningIdentityFor(device.UserDomain())
+	identity, err := rsAPI.SigningIdentityFor(ctx, *validRoomID, *fullUserID)
 	if err != nil {
 		return nil, &util.JSONResponse{
 			Code: http.StatusInternalServerError,
@@ -313,7 +385,7 @@ func generateSendEvent(
 	}
 
 	var queryRes api.QueryLatestEventsAndStateResponse
-	e, err := eventutil.QueryAndBuildEvent(ctx, &proto, identity, evTime, rsAPI, &queryRes)
+	e, err := eventutil.QueryAndBuildEvent(ctx, &proto, &identity, evTime, rsAPI, &queryRes)
 	switch specificErr := err.(type) {
 	case nil:
 	case eventutil.ErrRoomNoExists:
@@ -370,7 +442,7 @@ func generateSendEvent(
 				JSON: spec.BadJSON("Cannot unmarshal the event content."),
 			}
 		}
-		if content["replacement_room"] == e.RoomID() {
+		if content["replacement_room"] == e.RoomID().String() {
 			return nil, &util.JSONResponse{
 				Code: http.StatusBadRequest,
 				JSON: spec.InvalidParam("Cannot send tombstone event that points to the same room."),

clientapi/routing/sendevent_test.go

@@ -0,0 +1,275 @@
+package routing
+
+import (
+	"context"
+	"crypto/ed25519"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+	"testing"
+
+	rsapi "github.com/matrix-org/dendrite/roomserver/api"
+	"github.com/matrix-org/dendrite/roomserver/types"
+	"github.com/matrix-org/dendrite/setup/config"
+	uapi "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/gomatrixserverlib"
+	"github.com/matrix-org/gomatrixserverlib/fclient"
+	"github.com/matrix-org/gomatrixserverlib/spec"
+	"gotest.tools/v3/assert"
+)
+
+// Mock roomserver API for testing
+//
+// Currently pretty specialised for the pseudo ID test, so will need
+// editing if future (other) sendevent tests are using this.
+type sendEventTestRoomserverAPI struct {
+	rsapi.ClientRoomserverAPI
+	t           *testing.T
+	roomIDStr   string
+	roomVersion gomatrixserverlib.RoomVersion
+	roomState   []*types.HeaderedEvent
+
+	// userID -> room key
+	senderMapping map[string]ed25519.PrivateKey
+
+	savedInputRoomEvents []rsapi.InputRoomEvent
+}
+
+func (s *sendEventTestRoomserverAPI) QueryRoomVersionForRoom(ctx context.Context, roomID string) (gomatrixserverlib.RoomVersion, error) {
+	if roomID == s.roomIDStr {
+		return s.roomVersion, nil
+	} else {
+		s.t.Logf("room version queried for %s", roomID)
+		return "", fmt.Errorf("unknown room")
+	}
+}
+
+func (s *sendEventTestRoomserverAPI) QueryCurrentState(ctx context.Context, req *rsapi.QueryCurrentStateRequest, res *rsapi.QueryCurrentStateResponse) error {
+	res.StateEvents = map[gomatrixserverlib.StateKeyTuple]*types.HeaderedEvent{}
+	for _, stateKeyTuple := range req.StateTuples {
+		for _, stateEv := range s.roomState {
+			if stateEv.Type() == stateKeyTuple.EventType && stateEv.StateKey() != nil && *stateEv.StateKey() == stateKeyTuple.StateKey {
+				res.StateEvents[stateKeyTuple] = stateEv
+			}
+		}
+	}
+	return nil
+}
+
+func (s *sendEventTestRoomserverAPI) QueryLatestEventsAndState(ctx context.Context, req *rsapi.QueryLatestEventsAndStateRequest, res *rsapi.QueryLatestEventsAndStateResponse) error {
+	if req.RoomID == s.roomIDStr {
+		res.RoomExists = true
+		res.RoomVersion = s.roomVersion
+
+		res.StateEvents = make([]*types.HeaderedEvent, len(s.roomState))
+		copy(res.StateEvents, s.roomState)
+
+		res.LatestEvents = []string{}
+		res.Depth = 1
+		return nil
+	} else {
+		s.t.Logf("room event/state queried for %s", req.RoomID)
+		return fmt.Errorf("unknown room")
+	}
+
+}
+
+func (s *sendEventTestRoomserverAPI) QuerySenderIDForUser(
+	ctx context.Context,
+	roomID spec.RoomID,
+	userID spec.UserID,
+) (*spec.SenderID, error) {
+	if roomID.String() == s.roomIDStr {
+		if s.roomVersion == gomatrixserverlib.RoomVersionPseudoIDs {
+			roomKey, ok := s.senderMapping[userID.String()]
+			if ok {
+				sender := spec.SenderIDFromPseudoIDKey(roomKey)
+				return &sender, nil
+			} else {
+				return nil, nil
+			}
+		} else {
+			senderID := spec.SenderIDFromUserID(userID)
+			return &senderID, nil
+		}
+	}
+
+	return nil, fmt.Errorf("room not found")
+}
+
+func (s *sendEventTestRoomserverAPI) QueryUserIDForSender(
+	ctx context.Context,
+	roomID spec.RoomID,
+	senderID spec.SenderID,
+) (*spec.UserID, error) {
+	if roomID.String() == s.roomIDStr {
+		if s.roomVersion == gomatrixserverlib.RoomVersionPseudoIDs {
+			for uID, roomKey := range s.senderMapping {
+				if string(spec.SenderIDFromPseudoIDKey(roomKey)) == string(senderID) {
+					parsedUserID, err := spec.NewUserID(uID, true)
+					if err != nil {
+						s.t.Fatalf("Mock QueryUserIDForSender failed: %s", err)
+					}
+					return parsedUserID, nil
+				}
+			}
+		} else {
+			userID := senderID.ToUserID()
+			if userID == nil {
+				return nil, fmt.Errorf("bad sender ID")
+			}
+			return userID, nil
+		}
+	}
+
+	return nil, fmt.Errorf("room not found")
+}
+
+func (s *sendEventTestRoomserverAPI) SigningIdentityFor(ctx context.Context, roomID spec.RoomID, sender spec.UserID) (fclient.SigningIdentity, error) {
+	if s.roomIDStr == roomID.String() {
+		if s.roomVersion == gomatrixserverlib.RoomVersionPseudoIDs {
+			roomKey, ok := s.senderMapping[sender.String()]
+			if !ok {
+				s.t.Logf("SigningIdentityFor used with unknown user ID: %v", sender.String())
+				return fclient.SigningIdentity{}, fmt.Errorf("could not get signing identity for %v", sender.String())
+			}
+			return fclient.SigningIdentity{PrivateKey: roomKey}, nil
+		} else {
+			return fclient.SigningIdentity{PrivateKey: ed25519.NewKeyFromSeed(make([]byte, 32))}, nil
+		}
+	}
+
+	return fclient.SigningIdentity{}, fmt.Errorf("room not found")
+}
+
+func (s *sendEventTestRoomserverAPI) InputRoomEvents(ctx context.Context, req *rsapi.InputRoomEventsRequest, res *rsapi.InputRoomEventsResponse) {
+	s.savedInputRoomEvents = req.InputRoomEvents
+}
+
+// Test that user ID state keys are translated correctly
+func Test_SendEvent_PseudoIDStateKeys(t *testing.T) {
+	nonpseudoIDRoomVersion := gomatrixserverlib.RoomVersionV10
+	pseudoIDRoomVersion := gomatrixserverlib.RoomVersionPseudoIDs
+
+	senderKeySeed := make([]byte, 32)
+	senderUserID := "@testuser:domain"
+	senderPrivKey := ed25519.NewKeyFromSeed(senderKeySeed)
+	senderPseudoID := string(spec.SenderIDFromPseudoIDKey(senderPrivKey))
+
+	eventType := "com.example.test"
+	roomIDStr := "!id:domain"
+
+	device := &uapi.Device{
+		UserID: senderUserID,
+	}
+
+	t.Run("user ID state key are not translated to room key in non-pseudo ID room", func(t *testing.T) {
+		eventsJSON := []string{
+			fmt.Sprintf(`{"type":"m.room.create","state_key":"","room_id":"%v","sender":"%v","content":{"creator":"%v","room_version":"%v"}}`, roomIDStr, senderUserID, senderUserID, nonpseudoIDRoomVersion),
+			fmt.Sprintf(`{"type":"m.room.member","state_key":"%v","room_id":"%v","sender":"%v","content":{"membership":"join"}}`, senderUserID, roomIDStr, senderUserID),
+		}
+
+		roomState, err := createEvents(eventsJSON, nonpseudoIDRoomVersion)
+		if err != nil {
+			t.Fatalf("failed to prepare state events: %s", err.Error())
+		}
+
+		rsAPI := &sendEventTestRoomserverAPI{
+			t:           t,
+			roomIDStr:   roomIDStr,
+			roomVersion: nonpseudoIDRoomVersion,
+			roomState:   roomState,
+		}
+
+		req, err := http.NewRequest("POST", "https://domain", io.NopCloser(strings.NewReader("{}")))
+		if err != nil {
+			t.Fatalf("failed to make new request: %s", err.Error())
+		}
+
+		cfg := &config.ClientAPI{}
+
+		resp := SendEvent(req, device, roomIDStr, eventType, nil, &senderUserID, cfg, rsAPI, nil)
+
+		if resp.Code != http.StatusOK {
+			t.Fatalf("non-200 HTTP code returned: %v\nfull response: %v", resp.Code, resp)
+		}
+
+		assert.Equal(t, len(rsAPI.savedInputRoomEvents), 1)
+
+		ev := rsAPI.savedInputRoomEvents[0]
+		stateKey := ev.Event.StateKey()
+		if stateKey == nil {
+			t.Fatalf("submitted InputRoomEvent has nil state key, when it should be %v", senderUserID)
+		}
+		if *stateKey != senderUserID {
+			t.Fatalf("expected submitted InputRoomEvent to have user ID state key\nfound: %v\nexpected: %v", *stateKey, senderUserID)
+		}
+	})
+
+	t.Run("user ID state key are translated to room key in pseudo ID room", func(t *testing.T) {
+		eventsJSON := []string{
+			fmt.Sprintf(`{"type":"m.room.create","state_key":"","room_id":"%v","sender":"%v","content":{"creator":"%v","room_version":"%v"}}`, roomIDStr, senderPseudoID, senderPseudoID, pseudoIDRoomVersion),
+			fmt.Sprintf(`{"type":"m.room.member","state_key":"%v","room_id":"%v","sender":"%v","content":{"membership":"join"}}`, senderPseudoID, roomIDStr, senderPseudoID),
+		}
+
+		roomState, err := createEvents(eventsJSON, pseudoIDRoomVersion)
+		if err != nil {
+			t.Fatalf("failed to prepare state events: %s", err.Error())
+		}
+
+		rsAPI := &sendEventTestRoomserverAPI{
+			t:           t,
+			roomIDStr:   roomIDStr,
+			roomVersion: pseudoIDRoomVersion,
+			senderMapping: map[string]ed25519.PrivateKey{
+				senderUserID: senderPrivKey,
+			},
+			roomState: roomState,
+		}
+
+		req, err := http.NewRequest("POST", "https://domain", io.NopCloser(strings.NewReader("{}")))
+		if err != nil {
+			t.Fatalf("failed to make new request: %s", err.Error())
+		}
+
+		cfg := &config.ClientAPI{}
+
+		resp := SendEvent(req, device, roomIDStr, eventType, nil, &senderUserID, cfg, rsAPI, nil)
+
+		if resp.Code != http.StatusOK {
+			t.Fatalf("non-200 HTTP code returned: %v\nfull response: %v", resp.Code, resp)
+		}
+
+		assert.Equal(t, len(rsAPI.savedInputRoomEvents), 1)
+
+		ev := rsAPI.savedInputRoomEvents[0]
+		stateKey := ev.Event.StateKey()
+		if stateKey == nil {
+			t.Fatalf("submitted InputRoomEvent has nil state key, when it should be %v", senderPseudoID)
+		}
+		if *stateKey != senderPseudoID {
+			t.Fatalf("expected submitted InputRoomEvent to have pseudo ID state key\nfound: %v\nexpected: %v", *stateKey, senderPseudoID)
+		}
+	})
+}
+
+func createEvents(eventsJSON []string, roomVer gomatrixserverlib.RoomVersion) ([]*types.HeaderedEvent, error) {
+	events := make([]*types.HeaderedEvent, len(eventsJSON))
+
+	roomVerImpl, err := gomatrixserverlib.GetRoomVersion(roomVer)
+	if err != nil {
+		return nil, fmt.Errorf("no roomver impl: %s", err.Error())
+	}
+
+	for i, eventJSON := range eventsJSON {
+		pdu, evErr := roomVerImpl.NewEventFromTrustedJSON([]byte(eventJSON), false)
+		if evErr != nil {
+			return nil, fmt.Errorf("failed to make event: %s", err.Error())
+		}
+		ev := types.HeaderedEvent{PDU: pdu}
+		events[i] = &ev
+	}
+
+	return events, nil
+}

clientapi/routing/server_notices.go

@@ -28,7 +28,6 @@ import (
 	"github.com/sirupsen/logrus"
 
 	"github.com/matrix-org/dendrite/roomserver/types"
-	"github.com/matrix-org/dendrite/roomserver/version"
 
 	appserviceAPI "github.com/matrix-org/dendrite/appservice/api"
 	"github.com/matrix-org/dendrite/clientapi/httputil"
@@ -95,34 +94,42 @@ func SendServerNotice(
 		}
 	}
 
+	userID, err := spec.NewUserID(r.UserID, true)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.InvalidParam("invalid user ID"),
+		}
+	}
+
 	// get rooms for specified user
-	allUserRooms := []string{}
+	allUserRooms := []spec.RoomID{}
-	userRooms := api.QueryRoomsForUserResponse{}
 	// Get rooms the user is either joined, invited or has left.
 	for _, membership := range []string{"join", "invite", "leave"} {
-		if err := rsAPI.QueryRoomsForUser(ctx, &api.QueryRoomsForUserRequest{
+		userRooms, queryErr := rsAPI.QueryRoomsForUser(ctx, *userID, membership)
-			UserID:         r.UserID,
+		if queryErr != nil {
-			WantMembership: membership,
-		}, &userRooms); err != nil {
 			return util.ErrorResponse(err)
 		}
-		allUserRooms = append(allUserRooms, userRooms.RoomIDs...)
+		allUserRooms = append(allUserRooms, userRooms...)
 	}
 
 	// get rooms of the sender
-	senderUserID := fmt.Sprintf("@%s:%s", cfgNotices.LocalPart, cfgClient.Matrix.ServerName)
+	senderUserID, err := spec.NewUserID(fmt.Sprintf("@%s:%s", cfgNotices.LocalPart, cfgClient.Matrix.ServerName), true)
-	senderRooms := api.QueryRoomsForUserResponse{}
+	if err != nil {
-	if err := rsAPI.QueryRoomsForUser(ctx, &api.QueryRoomsForUserRequest{
+		return util.JSONResponse{
-		UserID:         senderUserID,
+			Code: http.StatusInternalServerError,
-		WantMembership: "join",
+			JSON: spec.Unknown("internal server error"),
-	}, &senderRooms); err != nil {
+		}
+	}
+	senderRooms, err := rsAPI.QueryRoomsForUser(ctx, *senderUserID, "join")
+	if err != nil {
 		return util.ErrorResponse(err)
 	}
 
 	// check if we have rooms in common
-	commonRooms := []string{}
+	commonRooms := []spec.RoomID{}
 	for _, userRoomID := range allUserRooms {
-		for _, senderRoomID := range senderRooms.RoomIDs {
+		for _, senderRoomID := range senderRooms {
 			if userRoomID == senderRoomID {
 				commonRooms = append(commonRooms, senderRoomID)
 			}
@@ -135,12 +142,12 @@ func SendServerNotice(
 
 	var (
 		roomID      string
-		roomVersion = version.DefaultRoomVersion()
+		roomVersion = rsAPI.DefaultRoomVersion()
 	)
 
 	// create a new room for the user
 	if len(commonRooms) == 0 {
-		powerLevelContent := eventutil.InitialPowerLevelsContent(senderUserID)
+		powerLevelContent := eventutil.InitialPowerLevelsContent(senderUserID.String())
 		powerLevelContent.Users[r.UserID] = -10 // taken from Synapse
 		pl, err := json.Marshal(powerLevelContent)
 		if err != nil {
@@ -196,7 +203,7 @@ func SendServerNotice(
 			}
 		}
 
-		roomID = commonRooms[0]
+		roomID = commonRooms[0].String()
 		membershipRes := api.QueryMembershipForUserResponse{}
 		err = rsAPI.QueryMembershipForUser(ctx, &api.QueryMembershipForUserRequest{UserID: *deviceUserID, RoomID: roomID}, &membershipRes)
 		if err != nil {
@@ -208,7 +215,7 @@ func SendServerNotice(
 		}
 		if !membershipRes.IsInRoom {
 			// re-invite the user
-			res, err := sendInvite(ctx, userAPI, senderDevice, roomID, r.UserID, "Server notice room", cfgClient, rsAPI, asAPI, time.Now())
+			res, err := sendInvite(ctx, senderDevice, roomID, r.UserID, "Server notice room", cfgClient, rsAPI, time.Now())
 			if err != nil {
 				return res
 			}
@@ -221,7 +228,7 @@ func SendServerNotice(
 		"body":    r.Content.Body,
 		"msgtype": r.Content.MsgType,
 	}
-	e, resErr := generateSendEvent(ctx, request, senderDevice, roomID, "m.room.message", nil, cfgClient, rsAPI, time.Now())
+	e, resErr := generateSendEvent(ctx, request, senderDevice, roomID, "m.room.message", nil, rsAPI, time.Now())
 	if resErr != nil {
 		logrus.Errorf("failed to send message: %+v", resErr)
 		return *resErr
@@ -350,7 +357,7 @@ func getSenderDevice(
 	if len(deviceRes.Devices) > 0 {
 		// If there were changes to the profile, create a new membership event
 		if displayNameChanged || avatarChanged {
-			_, err = updateProfile(ctx, rsAPI, &deviceRes.Devices[0], profile, accRes.Account.UserID, cfg, time.Now())
+			_, err = updateProfile(ctx, rsAPI, &deviceRes.Devices[0], profile, accRes.Account.UserID, time.Now())
 			if err != nil {
 				return nil, err
 			}

clientapi/routing/state.go

@@ -172,28 +172,16 @@ func OnIncomingStateRequest(ctx context.Context, device *userapi.Device, rsAPI a
 			}
 		}
 		for _, ev := range stateAfterRes.StateEvents {
-			sender := spec.UserID{}
+			clientEvent, err := synctypes.ToClientEvent(ev, synctypes.FormatAll, func(roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
-			evRoomID, err := spec.NewRoomID(ev.RoomID())
+				return rsAPI.QueryUserIDForSender(ctx, roomID, senderID)
+			})
 			if err != nil {
-				util.GetLogger(ctx).WithError(err).Error("Event roomID is invalid")
+				util.GetLogger(ctx).WithError(err).Error("Failed converting to ClientEvent")
 				continue
 			}
-			userID, err := rsAPI.QueryUserIDForSender(ctx, *evRoomID, ev.SenderID())
-			if err == nil && userID != nil {
-				sender = *userID
-			}
-
-			sk := ev.StateKey()
-			if sk != nil && *sk != "" {
-				skUserID, err := rsAPI.QueryUserIDForSender(ctx, *evRoomID, spec.SenderID(*ev.StateKey()))
-				if err == nil && skUserID != nil {
-					skString := skUserID.String()
-					sk = &skString
-				}
-			}
 			stateEvents = append(
 				stateEvents,
-				synctypes.ToClientEvent(ev, synctypes.FormatAll, sender, sk),
+				*clientEvent,
 			)
 		}
 	}
@@ -217,6 +205,37 @@ func OnIncomingStateTypeRequest(
 	var worldReadable bool
 	var wantLatestState bool
 
+	roomVer, err := rsAPI.QueryRoomVersionForRoom(ctx, roomID)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: spec.Forbidden(fmt.Sprintf("Unknown room %q or user %q has never joined this room", roomID, device.UserID)),
+		}
+	}
+
+	// Translate user ID state keys to room keys in pseudo ID rooms
+	if roomVer == gomatrixserverlib.RoomVersionPseudoIDs {
+		parsedRoomID, err := spec.NewRoomID(roomID)
+		if err != nil {
+			return util.JSONResponse{
+				Code: http.StatusNotFound,
+				JSON: spec.InvalidParam("invalid room ID"),
+			}
+		}
+		newStateKey, err := synctypes.FromClientStateKey(*parsedRoomID, stateKey, func(roomID spec.RoomID, userID spec.UserID) (*spec.SenderID, error) {
+			return rsAPI.QuerySenderIDForUser(ctx, roomID, userID)
+		})
+		if err != nil {
+			// TODO: work out better logic for failure cases (e.g. sender ID not found)
+			util.GetLogger(ctx).WithError(err).Error("synctypes.FromClientStateKey failed")
+			return util.JSONResponse{
+				Code: http.StatusInternalServerError,
+				JSON: spec.Unknown("internal server error"),
+			}
+		}
+		stateKey = *newStateKey
+	}
+
 	// Always fetch visibility so that we can work out whether to show
 	// the latest events or the last event from when the user was joined.
 	// Then include the requested event type and state key, assuming it

clientapi/routing/state_test.go

@@ -0,0 +1,253 @@
+package routing
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"testing"
+
+	rsapi "github.com/matrix-org/dendrite/roomserver/api"
+	"github.com/matrix-org/dendrite/roomserver/types"
+	"github.com/matrix-org/dendrite/setup/config"
+	uapi "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/gomatrixserverlib"
+	"github.com/matrix-org/gomatrixserverlib/spec"
+	"github.com/matrix-org/util"
+	"gotest.tools/v3/assert"
+)
+
+var ()
+
+type stateTestRoomserverAPI struct {
+	rsapi.RoomserverInternalAPI
+	t           *testing.T
+	roomState   map[gomatrixserverlib.StateKeyTuple]*types.HeaderedEvent
+	roomIDStr   string
+	roomVersion gomatrixserverlib.RoomVersion
+	userIDStr   string
+	// userID -> senderID
+	senderMapping map[string]string
+}
+
+func (s stateTestRoomserverAPI) QueryRoomVersionForRoom(ctx context.Context, roomID string) (gomatrixserverlib.RoomVersion, error) {
+	if roomID == s.roomIDStr {
+		return s.roomVersion, nil
+	} else {
+		s.t.Logf("room version queried for %s", roomID)
+		return "", fmt.Errorf("unknown room")
+	}
+}
+
+func (s stateTestRoomserverAPI) QueryLatestEventsAndState(
+	ctx context.Context,
+	req *rsapi.QueryLatestEventsAndStateRequest,
+	res *rsapi.QueryLatestEventsAndStateResponse,
+) error {
+	res.RoomExists = req.RoomID == s.roomIDStr
+	if !res.RoomExists {
+		return nil
+	}
+
+	res.StateEvents = []*types.HeaderedEvent{}
+	for _, stateKeyTuple := range req.StateToFetch {
+		val, ok := s.roomState[stateKeyTuple]
+		if ok && val != nil {
+			res.StateEvents = append(res.StateEvents, val)
+		}
+	}
+
+	return nil
+}
+
+func (s stateTestRoomserverAPI) QueryMembershipForUser(
+	ctx context.Context,
+	req *rsapi.QueryMembershipForUserRequest,
+	res *rsapi.QueryMembershipForUserResponse,
+) error {
+	if req.UserID.String() == s.userIDStr {
+		res.HasBeenInRoom = true
+		res.IsInRoom = true
+		res.RoomExists = true
+		res.Membership = spec.Join
+	}
+
+	return nil
+}
+
+func (s stateTestRoomserverAPI) QuerySenderIDForUser(
+	ctx context.Context,
+	roomID spec.RoomID,
+	userID spec.UserID,
+) (*spec.SenderID, error) {
+	sID, ok := s.senderMapping[userID.String()]
+	if ok {
+		sender := spec.SenderID(sID)
+		return &sender, nil
+	} else {
+		return nil, nil
+	}
+}
+
+func (s stateTestRoomserverAPI) QueryUserIDForSender(
+	ctx context.Context,
+	roomID spec.RoomID,
+	senderID spec.SenderID,
+) (*spec.UserID, error) {
+	for uID, sID := range s.senderMapping {
+		if sID == string(senderID) {
+			parsedUserID, err := spec.NewUserID(uID, true)
+			if err != nil {
+				s.t.Fatalf("Mock QueryUserIDForSender failed: %s", err)
+			}
+			return parsedUserID, nil
+		}
+	}
+	return nil, nil
+}
+
+func (s stateTestRoomserverAPI) QueryStateAfterEvents(
+	ctx context.Context,
+	req *rsapi.QueryStateAfterEventsRequest,
+	res *rsapi.QueryStateAfterEventsResponse,
+) error {
+	return nil
+}
+
+func Test_OnIncomingStateTypeRequest(t *testing.T) {
+	var tempRoomServerCfg config.RoomServer
+	tempRoomServerCfg.Defaults(config.DefaultOpts{})
+	defaultRoomVersion := tempRoomServerCfg.DefaultRoomVersion
+	pseudoIDRoomVersion := gomatrixserverlib.RoomVersionPseudoIDs
+	nonPseudoIDRoomVersion := gomatrixserverlib.RoomVersionV10
+
+	userIDStr := "@testuser:domain"
+	eventType := "com.example.test"
+	stateKey := "testStateKey"
+	roomIDStr := "!id:domain"
+
+	device := &uapi.Device{
+		UserID: userIDStr,
+	}
+
+	t.Run("request simple state key", func(t *testing.T) {
+		ctx := context.Background()
+
+		rsAPI := stateTestRoomserverAPI{
+			roomVersion: defaultRoomVersion,
+			roomIDStr:   roomIDStr,
+			roomState: map[gomatrixserverlib.StateKeyTuple]*types.HeaderedEvent{
+				{
+					EventType: eventType,
+					StateKey:  stateKey,
+				}: mustCreateStatePDU(t, defaultRoomVersion, roomIDStr, eventType, stateKey, map[string]interface{}{
+					"foo": "bar",
+				}),
+			},
+			userIDStr: userIDStr,
+		}
+
+		jsonResp := OnIncomingStateTypeRequest(ctx, device, rsAPI, roomIDStr, eventType, stateKey, false)
+
+		assert.DeepEqual(t, jsonResp, util.JSONResponse{
+			Code: http.StatusOK,
+			JSON: spec.RawJSON(`{"foo":"bar"}`),
+		})
+	})
+
+	t.Run("user ID key translated to room key in pseudo ID rooms", func(t *testing.T) {
+		ctx := context.Background()
+
+		stateSenderUserID := "@sender:domain"
+		stateSenderRoomKey := "testsenderkey"
+
+		rsAPI := stateTestRoomserverAPI{
+			roomVersion: pseudoIDRoomVersion,
+			roomIDStr:   roomIDStr,
+			roomState: map[gomatrixserverlib.StateKeyTuple]*types.HeaderedEvent{
+				{
+					EventType: eventType,
+					StateKey:  stateSenderRoomKey,
+				}: mustCreateStatePDU(t, pseudoIDRoomVersion, roomIDStr, eventType, stateSenderRoomKey, map[string]interface{}{
+					"foo": "bar",
+				}),
+				{
+					EventType: eventType,
+					StateKey:  stateSenderUserID,
+				}: mustCreateStatePDU(t, pseudoIDRoomVersion, roomIDStr, eventType, stateSenderUserID, map[string]interface{}{
+					"not": "thisone",
+				}),
+			},
+			userIDStr: userIDStr,
+			senderMapping: map[string]string{
+				stateSenderUserID: stateSenderRoomKey,
+			},
+		}
+
+		jsonResp := OnIncomingStateTypeRequest(ctx, device, rsAPI, roomIDStr, eventType, stateSenderUserID, false)
+
+		assert.DeepEqual(t, jsonResp, util.JSONResponse{
+			Code: http.StatusOK,
+			JSON: spec.RawJSON(`{"foo":"bar"}`),
+		})
+	})
+
+	t.Run("user ID key not translated to room key in non-pseudo ID rooms", func(t *testing.T) {
+		ctx := context.Background()
+
+		stateSenderUserID := "@sender:domain"
+		stateSenderRoomKey := "testsenderkey"
+
+		rsAPI := stateTestRoomserverAPI{
+			roomVersion: nonPseudoIDRoomVersion,
+			roomIDStr:   roomIDStr,
+			roomState: map[gomatrixserverlib.StateKeyTuple]*types.HeaderedEvent{
+				{
+					EventType: eventType,
+					StateKey:  stateSenderRoomKey,
+				}: mustCreateStatePDU(t, nonPseudoIDRoomVersion, roomIDStr, eventType, stateSenderRoomKey, map[string]interface{}{
+					"not": "thisone",
+				}),
+				{
+					EventType: eventType,
+					StateKey:  stateSenderUserID,
+				}: mustCreateStatePDU(t, nonPseudoIDRoomVersion, roomIDStr, eventType, stateSenderUserID, map[string]interface{}{
+					"foo": "bar",
+				}),
+			},
+			userIDStr: userIDStr,
+			senderMapping: map[string]string{
+				stateSenderUserID: stateSenderUserID,
+			},
+		}
+
+		jsonResp := OnIncomingStateTypeRequest(ctx, device, rsAPI, roomIDStr, eventType, stateSenderUserID, false)
+
+		assert.DeepEqual(t, jsonResp, util.JSONResponse{
+			Code: http.StatusOK,
+			JSON: spec.RawJSON(`{"foo":"bar"}`),
+		})
+	})
+}
+
+func mustCreateStatePDU(t *testing.T, roomVer gomatrixserverlib.RoomVersion, roomID string, stateType string, stateKey string, stateContent map[string]interface{}) *types.HeaderedEvent {
+	t.Helper()
+	roomVerImpl := gomatrixserverlib.MustGetRoomVersion(roomVer)
+
+	evBytes, err := json.Marshal(map[string]interface{}{
+		"room_id":   roomID,
+		"type":      stateType,
+		"state_key": stateKey,
+		"content":   stateContent,
+	})
+	if err != nil {
+		t.Fatalf("failed to create event: %v", err)
+	}
+
+	ev, err := roomVerImpl.NewEventFromTrustedJSON(evBytes, false)
+	if err != nil {
+		t.Fatalf("failed to create event: %v", err)
+	}
+
+	return &types.HeaderedEvent{PDU: ev}
+}

clientapi/threepid/invites.go

@@ -366,9 +366,11 @@ func emit3PIDInviteEvent(
 	sender, err := rsAPI.QuerySenderIDForUser(ctx, *validRoomID, *userID)
 	if err != nil {
 		return err
+	} else if sender == nil {
+		return fmt.Errorf("sender ID not found for %s in %s", *userID, *validRoomID)
 	}
 	proto := &gomatrixserverlib.ProtoEvent{
-		SenderID: string(sender),
+		SenderID: string(*sender),
 		RoomID:   roomID,
 		Type:     "m.room.third_party_invite",
 		StateKey: &res.Token,

cmd/dendrite-demo-pinecone/monolith/monolith.go

@@ -98,7 +98,7 @@ func GenerateDefaultConfig(sk ed25519.PrivateKey, storageDir string, cacheDir st
 	cfg.KeyServer.Database.ConnectionString = config.DataSource(fmt.Sprintf("file:%s-keyserver.db", filepath.Join(storageDir, dbPrefix)))
 	cfg.FederationAPI.Database.ConnectionString = config.DataSource(fmt.Sprintf("file:%s-federationsender.db", filepath.Join(storageDir, dbPrefix)))
 	cfg.RelayAPI.Database.ConnectionString = config.DataSource(fmt.Sprintf("file:%s-relayapi.db", filepath.Join(storageDir, dbPrefix)))
-	cfg.MSCs.MSCs = []string{"msc2836", "msc2946"}
+	cfg.MSCs.MSCs = []string{"msc2836"}
 	cfg.MSCs.Database.ConnectionString = config.DataSource(fmt.Sprintf("file:%s-mscs.db", filepath.Join(storageDir, dbPrefix)))
 	cfg.ClientAPI.RegistrationDisabled = false
 	cfg.ClientAPI.OpenRegistrationWithoutVerificationEnabled = true
@@ -126,7 +126,7 @@ func (p *P2PMonolith) SetupPinecone(sk ed25519.PrivateKey) {
 }
 
 func (p *P2PMonolith) SetupDendrite(
-	processCtx *process.ProcessContext, cfg *config.Dendrite, cm sqlutil.Connections, routers httputil.Routers,
+	processCtx *process.ProcessContext, cfg *config.Dendrite, cm *sqlutil.Connections, routers httputil.Routers,
 	port int, enableRelaying bool, enableMetrics bool, enableWebsockets bool) {
 
 	p.port = port
@@ -143,13 +143,12 @@ func (p *P2PMonolith) SetupDendrite(
 	fsAPI := federationapi.NewInternalAPI(
 		processCtx, cfg, cm, &natsInstance, federation, rsAPI, caches, keyRing, true,
 	)
+	rsAPI.SetFederationAPI(fsAPI, keyRing)
 
-	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federation)
+	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federation, enableMetrics, fsAPI.IsBlacklistedOrBackingOff)
 
 	asAPI := appservice.NewInternalAPI(processCtx, cfg, &natsInstance, userAPI, rsAPI)
 
-	rsAPI.SetFederationAPI(fsAPI, keyRing)
-
 	userProvider := users.NewPineconeUserProvider(p.Router, p.Sessions, userAPI, federation)
 	roomProvider := rooms.NewPineconeRoomProvider(p.Router, p.Sessions, fsAPI, federation)
 
@@ -222,8 +221,8 @@ func (p *P2PMonolith) closeAllResources() {
 	p.httpServerMu.Lock()
 	if p.httpServer != nil {
 		_ = p.httpServer.Shutdown(context.Background())
-		p.httpServerMu.Unlock()
 	}
+	p.httpServerMu.Unlock()
 
 	select {
 	case p.stopHandlingEvents <- true:

cmd/dendrite-demo-pinecone/relay/retriever.go

@@ -17,13 +17,13 @@ package relay
 import (
 	"context"
 	"sync"
+	"sync/atomic"
 	"time"
 
 	federationAPI "github.com/matrix-org/dendrite/federationapi/api"
 	relayServerAPI "github.com/matrix-org/dendrite/relayapi/api"
 	"github.com/matrix-org/gomatrixserverlib/spec"
 	"github.com/sirupsen/logrus"
-	"go.uber.org/atomic"
 )
 
 const (
@@ -54,7 +54,7 @@ func NewRelayServerRetriever(
 		federationAPI:       federationAPI,
 		relayAPI:            relayAPI,
 		relayServersQueried: make(map[spec.ServerName]bool),
-		running:             *atomic.NewBool(false),
+		running:             atomic.Bool{},
 		quit:                quit,
 	}
 }

cmd/dendrite-demo-yggdrasil/README.md

@@ -1,6 +1,6 @@
 # Yggdrasil Demo
 
-This is the Dendrite Yggdrasil demo! It's easy to get started - all you need is Go 1.18 or later.
+This is the Dendrite Yggdrasil demo! It's easy to get started - all you need is Go 1.20 or later.
 
 To run the homeserver, start at the root of the Dendrite repository and run:
 

cmd/dendrite-demo-yggdrasil/main.go

@@ -134,7 +134,7 @@ func main() {
 		cfg.RoomServer.Database.ConnectionString = config.DataSource(fmt.Sprintf("file:%s-roomserver.db", filepath.Join(*instanceDir, *instanceName)))
 		cfg.KeyServer.Database.ConnectionString = config.DataSource(fmt.Sprintf("file:%s-keyserver.db", filepath.Join(*instanceDir, *instanceName)))
 		cfg.FederationAPI.Database.ConnectionString = config.DataSource(fmt.Sprintf("file:%s-federationapi.db", filepath.Join(*instanceDir, *instanceName)))
-		cfg.MSCs.MSCs = []string{"msc2836", "msc2946"}
+		cfg.MSCs.MSCs = []string{"msc2836"}
 		cfg.MSCs.Database.ConnectionString = config.DataSource(fmt.Sprintf("file:%s-mscs.db", filepath.Join(*instanceDir, *instanceName)))
 		cfg.ClientAPI.RegistrationDisabled = false
 		cfg.ClientAPI.OpenRegistrationWithoutVerificationEnabled = true
@@ -213,14 +213,15 @@ func main() {
 	natsInstance := jetstream.NATSInstance{}
 	rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.EnableMetrics)
 
-	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federation)
-
-	asAPI := appservice.NewInternalAPI(processCtx, cfg, &natsInstance, userAPI, rsAPI)
-	rsAPI.SetAppserviceAPI(asAPI)
 	fsAPI := federationapi.NewInternalAPI(
 		processCtx, cfg, cm, &natsInstance, federation, rsAPI, caches, keyRing, true,
 	)
 
+	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federation, caching.EnableMetrics, fsAPI.IsBlacklistedOrBackingOff)
+
+	asAPI := appservice.NewInternalAPI(processCtx, cfg, &natsInstance, userAPI, rsAPI)
+	rsAPI.SetAppserviceAPI(asAPI)
+
 	rsAPI.SetFederationAPI(fsAPI, keyRing)
 
 	monolith := setup.Monolith{

cmd/dendrite-upgrade-tests/main.go

@@ -7,7 +7,6 @@ import (
 	"flag"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"net/http"
 	"os"
@@ -55,7 +54,7 @@ var latest, _ = semver.NewVersion("v6.6.6") // Dummy version, used as "HEAD"
 // due to the error:
 // When using COPY with more than one source file, the destination must be a directory and end with a /
 // We need to run a postgres anyway, so use the dockerfile associated with Complement instead.
-const DockerfilePostgreSQL = `FROM golang:1.18-buster as build
+const DockerfilePostgreSQL = `FROM golang:1.20-bookworm as build
 RUN apt-get update && apt-get install -y postgresql
 WORKDIR /build
 ARG BINARY
@@ -74,16 +73,16 @@ RUN ./generate-keys --private-key matrix_key.pem --tls-cert server.crt --tls-key
 # Replace the connection string with a single postgres DB, using user/db = 'postgres' and no password
 RUN sed -i "s%connection_string:.*$%connection_string: postgresql://postgres@localhost/postgres?sslmode=disable%g" dendrite.yaml
 # No password when connecting over localhost
-RUN sed -i "s%127.0.0.1/32            md5%127.0.0.1/32            trust%g" /etc/postgresql/11/main/pg_hba.conf
+RUN sed -i "s%127.0.0.1/32            scram-sha-256%127.0.0.1/32            trust%g" /etc/postgresql/15/main/pg_hba.conf
 # Bump up max conns for moar concurrency
-RUN sed -i 's/max_connections = 100/max_connections = 2000/g' /etc/postgresql/11/main/postgresql.conf
+RUN sed -i 's/max_connections = 100/max_connections = 2000/g' /etc/postgresql/15/main/postgresql.conf
 RUN sed -i 's/max_open_conns:.*$/max_open_conns: 100/g' dendrite.yaml
 
 # This entry script starts postgres, waits for it to be up then starts dendrite
 RUN echo '\
 #!/bin/bash -eu \n\
 pg_lsclusters \n\
-pg_ctlcluster 11 main start \n\
+pg_ctlcluster 15 main start \n\
  \n\
 until pg_isready \n\
 do \n\
@@ -101,7 +100,7 @@ ENV BINARY=dendrite
 EXPOSE 8008 8448
 CMD /build/run_dendrite.sh`
 
-const DockerfileSQLite = `FROM golang:1.18-buster as build
+const DockerfileSQLite = `FROM golang:1.20-bookworm as build
 RUN apt-get update && apt-get install -y postgresql
 WORKDIR /build
 ARG BINARY
@@ -119,7 +118,7 @@ RUN ./generate-keys --private-key matrix_key.pem --tls-cert server.crt --tls-key
 
 # Make sure the SQLite databases are in a persistent location, we're already mapping
 # the postgresql folder so let's just use that for simplicity
-RUN sed -i "s%connection_string:.file:%connection_string: file:\/var\/lib\/postgresql\/11\/main\/%g" dendrite.yaml
+RUN sed -i "s%connection_string:.file:%connection_string: file:\/var\/lib\/postgresql\/15\/main\/%g" dendrite.yaml
 
 # This entry script starts postgres, waits for it to be up then starts dendrite
 RUN echo '\
@@ -402,7 +401,7 @@ func runImage(dockerClient *client.Client, volumeName string, branchNameToImageI
 			{
 				Type:   mount.TypeVolume,
 				Source: volumeName,
-				Target: "/var/lib/postgresql/11/main",
+				Target: "/var/lib/postgresql/15/main",
 			},
 		},
 	}, nil, nil, "dendrite_upgrade_test_"+branchName)
@@ -515,7 +514,7 @@ func testCreateAccount(dockerClient *client.Client, version *semver.Version, con
 	}
 	defer response.Close()
 
-	data, err := ioutil.ReadAll(response.Reader)
+	data, err := io.ReadAll(response.Reader)
 	if err != nil {
 		return err
 	}
@@ -557,8 +556,8 @@ func cleanup(dockerClient *client.Client) {
 	})
 	for _, c := range containers {
 		log.Printf("Removing container: %v %v\n", c.ID, c.Names)
-		s := time.Second
+		timeout := 1
-		_ = dockerClient.ContainerStop(context.Background(), c.ID, &s)
+		_ = dockerClient.ContainerStop(context.Background(), c.ID, container.StopOptions{Timeout: &timeout})
 		_ = dockerClient.ContainerRemove(context.Background(), c.ID, types.ContainerRemoveOptions{
 			Force: true,
 		})
@@ -592,7 +591,7 @@ func main() {
 	branchToImageID := buildDendriteImages(httpClient, dockerClient, *flagTempDir, *flagBuildConcurrency, versions)
 
 	// make a shared postgres volume
-	volume, err := dockerClient.VolumeCreate(context.Background(), volume.VolumeCreateBody{
+	volume, err := dockerClient.VolumeCreate(context.Background(), volume.CreateOptions{
 		Name: "dendrite_upgrade_test",
 		Labels: map[string]string{
 			dendriteUpgradeTestLabel: "yes",

cmd/dendrite/main.go

@@ -26,6 +26,7 @@ import (
 	"github.com/matrix-org/dendrite/setup/jetstream"
 	"github.com/matrix-org/dendrite/setup/process"
 	"github.com/matrix-org/gomatrixserverlib/fclient"
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/sirupsen/logrus"
 
 	"github.com/matrix-org/dendrite/appservice"
@@ -156,13 +157,14 @@ func main() {
 
 	keyRing := fsAPI.KeyRing()
 
-	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federationClient)
-	asAPI := appservice.NewInternalAPI(processCtx, cfg, &natsInstance, userAPI, rsAPI)
-
 	// The underlying roomserver implementation needs to be able to call the fedsender.
 	// This is different to rsAPI which can be the http client which doesn't need this
 	// dependency. Other components also need updating after their dependencies are up.
 	rsAPI.SetFederationAPI(fsAPI, keyRing)
+
+	userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federationClient, caching.EnableMetrics, fsAPI.IsBlacklistedOrBackingOff)
+	asAPI := appservice.NewInternalAPI(processCtx, cfg, &natsInstance, userAPI, rsAPI)
+
 	rsAPI.SetAppserviceAPI(asAPI)
 	rsAPI.SetUserAPI(userAPI)
 
@@ -187,6 +189,16 @@ func main() {
 		}
 	}
 
+	upCounter := prometheus.NewCounter(prometheus.CounterOpts{
+		Namespace: "dendrite",
+		Name:      "up",
+		ConstLabels: map[string]string{
+			"version": internal.VersionString(),
+		},
+	})
+	upCounter.Add(1)
+	prometheus.MustRegister(upCounter)
+
 	// Expose the matrix APIs directly rather than putting them under a /api path.
 	go func() {
 		basepkg.SetupAndServeHTTP(processCtx, cfg, routers, httpAddr, nil, nil)

cmd/generate-config/main.go

@@ -74,7 +74,7 @@ func main() {
 			// don't hit matrix.org when running tests!!!
 			cfg.FederationAPI.KeyPerspectives = config.KeyPerspectives{}
 			cfg.MediaAPI.BasePath = config.Path(filepath.Join(*dirPath, "media"))
-			cfg.MSCs.MSCs = []string{"msc2836", "msc2946", "msc2444", "msc2753"}
+			cfg.MSCs.MSCs = []string{"msc2836", "msc2444", "msc2753"}
 			cfg.Logging[0].Level = "trace"
 			cfg.Logging[0].Type = "std"
 			cfg.UserAPI.BCryptCost = bcrypt.MinCost

cmd/resolve-state/main.go

@@ -11,13 +11,11 @@ import (
 
 	"github.com/matrix-org/dendrite/internal/caching"
 	"github.com/matrix-org/dendrite/internal/sqlutil"
-	"github.com/matrix-org/dendrite/roomserver"
 	"github.com/matrix-org/dendrite/roomserver/state"
 	"github.com/matrix-org/dendrite/roomserver/storage"
 	"github.com/matrix-org/dendrite/roomserver/types"
 	"github.com/matrix-org/dendrite/setup"
 	"github.com/matrix-org/dendrite/setup/config"
-	"github.com/matrix-org/dendrite/setup/jetstream"
 	"github.com/matrix-org/dendrite/setup/process"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/gomatrixserverlib/spec"
@@ -35,6 +33,19 @@ var roomVersion = flag.String("roomversion", "5", "the room version to parse eve
 var filterType = flag.String("filtertype", "", "the event types to filter on")
 var difference = flag.Bool("difference", false, "whether to calculate the difference between snapshots")
 
+// dummyQuerier implements QuerySenderIDAPI. Does **NOT** do any "magic" for pseudoID rooms
+// to avoid having to "start" a full roomserver API.
+type dummyQuerier struct{}
+
+func (d dummyQuerier) QuerySenderIDForUser(ctx context.Context, roomID spec.RoomID, userID spec.UserID) (*spec.SenderID, error) {
+	s := spec.SenderIDFromUserID(userID)
+	return &s, nil
+}
+
+func (d dummyQuerier) QueryUserIDForSender(ctx context.Context, roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
+	return senderID.ToUserID(), nil
+}
+
 // nolint:gocyclo
 func main() {
 	ctx := context.Background()
@@ -56,27 +67,32 @@ func main() {
 		}
 	}
 
-	fmt.Println("Fetching", len(snapshotNIDs), "snapshot NIDs")
-
 	processCtx := process.NewProcessContext()
 	cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
+
+	dbOpts := cfg.RoomServer.Database
+	if dbOpts.ConnectionString == "" {
+		dbOpts = cfg.Global.DatabaseOptions
+	}
+
+	fmt.Println("Opening database")
 	roomserverDB, err := storage.Open(
-		processCtx.Context(), cm, &cfg.RoomServer.Database,
+		processCtx.Context(), cm, &dbOpts,
-		caching.NewRistrettoCache(128*1024*1024, time.Hour, true),
+		caching.NewRistrettoCache(8*1024*1024, time.Minute*5, caching.DisableMetrics),
 	)
 	if err != nil {
 		panic(err)
 	}
 
-	natsInstance := &jetstream.NATSInstance{}
+	rsAPI := dummyQuerier{}
-	rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm,
-		natsInstance, caching.NewRistrettoCache(128*1024*1024, time.Hour, true), false)
 
 	roomInfo := &types.RoomInfo{
 		RoomVersion: gomatrixserverlib.RoomVersion(*roomVersion),
 	}
 	stateres := state.NewStateResolution(roomserverDB, roomInfo, rsAPI)
 
+	fmt.Println("Fetching", len(snapshotNIDs), "snapshot NIDs")
+
 	if *difference {
 		if len(snapshotNIDs) != 2 {
 			panic("need exactly two state snapshot NIDs to calculate difference")
@@ -186,12 +202,25 @@ func main() {
 		authEvents[i] = authEventEntries[i].PDU
 	}
 
+	// Get the roomNID
+	roomInfo, err = roomserverDB.RoomInfo(ctx, authEvents[0].RoomID().String())
+	if err != nil {
+		panic(err)
+	}
+
 	fmt.Println("Resolving state")
 	var resolved Events
 	resolved, err = gomatrixserverlib.ResolveConflicts(
 		gomatrixserverlib.RoomVersion(*roomVersion), events, authEvents, func(roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
 			return rsAPI.QueryUserIDForSender(ctx, roomID, senderID)
 		},
+		func(eventID string) bool {
+			isRejected, rejectedErr := roomserverDB.IsEventRejected(ctx, roomInfo.RoomNID, eventID)
+			if rejectedErr != nil {
+				return true
+			}
+			return isRejected
+		},
 	)
 	if err != nil {
 		panic(err)

dendrite-sample.yaml

@@ -72,6 +72,10 @@ global:
   # The base URL to delegate client-server communications to e.g. https://localhost
   well_known_client_name: ""
 
+  # The server name to delegate sliding sync communications to, with optional port.
+  # Requires `well_known_client_name` to also be configured.
+  well_known_sliding_sync_proxy: ""
+
   # Lists of domains that the server will trust as identity servers to verify third
   # party identifiers such as phone numbers and email addresses.
   trusted_third_party_id_servers:
@@ -150,6 +154,13 @@ app_service_api:
   # to be sent to an insecure endpoint.
   disable_tls_validation: false
 
+  # Send the access_token query parameter with appservice requests in addition
+  # to the Authorization header. This can cause hs_tokens to be saved to logs,
+  # so it should not be enabled unless absolutely necessary.
+  legacy_auth: false
+  # Use the legacy unprefixed paths for appservice requests.
+  legacy_paths: false
+
   # Appservice configuration files to load into this homeserver.
   config_files:
   #  - /path/to/appservice_registration.yaml
@@ -276,7 +287,6 @@ media_api:
 mscs:
   mscs:
   #  - msc2836  # (Threading, see https://github.com/matrix-org/matrix-doc/pull/2836)
-  #  - msc2946  # (Spaces Summary, see https://github.com/matrix-org/matrix-doc/pull/2946)
 
 # Configuration for the Sync API.
 sync_api:
@@ -322,6 +332,10 @@ user_api:
   auto_join_rooms:
   #  - "#main:matrix.org"
 
+  # The number of workers to start for the DeviceListUpdater. Defaults to 8.
+  # This only needs updating if the "InputDeviceListUpdate" stream keeps growing indefinitely.
+  # worker_count: 8
+
 # Configuration for Opentracing.
 # See https://github.com/matrix-org/dendrite/tree/master/docs/tracing for information on
 # how this works and how to set it up.

docs/FAQ.md

@@ -24,7 +24,7 @@ No, although a good portion of the Matrix specification has been implemented. Mo
 
 Dendrite development is currently supported by a small team of developers and due to those limited resources, the majority of the effort is focused on getting Dendrite to be 
 specification complete. If there are major features you're requesting (e.g. new administration endpoints), we'd like to strongly encourage you to join the community in supporting 
-the development efforts through [contributing](../development/contributing). 
+the development efforts through [contributing](./development/CONTRIBUTING.md). 
 
 ## Is there a migration path from Synapse to Dendrite?
 
@@ -64,16 +64,18 @@ Use [dendrite.matrix.org](https://dendrite.matrix.org) which we officially suppo
 
 ## Does Dendrite support Space Summaries?
 
-Yes, [Space Summaries](https://github.com/matrix-org/matrix-spec-proposals/pull/2946) were merged into the Matrix Spec as of 2022-01-17 however, they are still treated as an MSC (Matrix Specification Change) in Dendrite. In order to enable Space Summaries in Dendrite, you must add the MSC to the MSC configuration section in the configuration YAML. If the MSC is not enabled, a user will typically see a perpetual loading icon on the summary page. See below for a demonstration of how to add to the Dendrite configuration:
+Yes
+
+## Does Dendrite support Threads?
+
+Yes, to enable them [msc2836](https://github.com/matrix-org/matrix-spec-proposals/pull/2836) would need to be added to mscs configuration in order to support Threading. Other MSCs are not currently supported.
 
 ```
 mscs:
   mscs:
-    - msc2946
+    - msc2836
 ```
 
-Similarly, [msc2836](https://github.com/matrix-org/matrix-spec-proposals/pull/2836) would need to be added to mscs configuration in order to support Threading. Other MSCs are not currently supported.
-
 Please note that MSCs should be considered experimental and can result in significant usability issues when enabled. If you'd like more details on how MSCs are ratified or the current status of MSCs, please see the [Matrix specification documentation](https://spec.matrix.org/proposals/) on the subject.
 
 ## Does Dendrite support push notifications?
@@ -103,7 +105,7 @@ This can be done by performing a room upgrade. Use the command `/upgraderoom <ve
 
 ## How do I reset somebody's password on my server?
 
-Use the admin endpoint [resetpassword](./administration/adminapi#post-_dendriteadminresetpassworduserid)
+Use the admin endpoint [resetpassword](./administration/4_adminapi.md#post-_dendriteadminresetpassworduserid)
 
 ## Should I use PostgreSQL or SQLite for my databases?
 
@@ -115,6 +117,7 @@ The list of files that need to be stored is:
 - matrix-key.pem
 - dendrite.yaml
 - the postgres or sqlite DB
+- the jetstream directory
 - the media store
 - the search index (although this can be regenerated)
 

docs/Gemfile.lock

@@ -14,7 +14,7 @@ GEM
       execjs
     coffee-script-source (1.11.1)
     colorator (1.1.0)
-    commonmarker (0.23.9)
+    commonmarker (0.23.10)
     concurrent-ruby (1.2.0)
     dnsruby (1.61.9)
       simpleidn (~> 0.1)
@@ -231,9 +231,9 @@ GEM
       jekyll-seo-tag (~> 2.1)
     minitest (5.17.0)
     multipart-post (2.1.1)
-    nokogiri (1.14.3-arm64-darwin)
+    nokogiri (1.16.2-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.14.3-x86_64-linux)
+    nokogiri (1.16.2-x86_64-linux)
       racc (~> 1.4)
     octokit (4.22.0)
       faraday (>= 0.9)
@@ -241,7 +241,7 @@ GEM
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.7)
-    racc (1.6.2)
+    racc (1.7.3)
     rb-fsevent (0.11.1)
     rb-inotify (0.10.1)
       ffi (~> 1.0)

docs/administration/4_adminapi.md

@@ -75,7 +75,7 @@ This endpoint instructs Dendrite to immediately query `/devices/{userID}` on a f
 
 ## POST `/_dendrite/admin/purgeRoom/{roomID}`
 
-This endpoint instructs Dendrite to remove the given room from its database. Before doing so, it will evacuate all local users from the room. It does **NOT** remove media files. Depending on the size of the room, this may take a while. Will return an empty JSON once other components were instructed to delete the room.
+This endpoint instructs Dendrite to remove the given room from its database. It does **NOT** remove media files. Depending on the size of the room, this may take a while. Will return an empty JSON once other components were instructed to delete the room.
 
 ## POST `/_synapse/admin/v1/send_server_notice`
 

docs/administration/5_optimisation.md

@@ -95,7 +95,7 @@ Consider enabling the DNS cache by modifying the `global` section of your config
 ## Time synchronisation
 
 Matrix relies heavily on TLS which requires the system time to be correct. If the clock
-drifts then you may find that federation no works reliably (or at all) and clients may
+drifts then you may find that federation will not work reliably (or at all) and clients may
 struggle to connect to your Dendrite server.
 
 Ensure that the time is synchronised on your system by enabling NTP sync.

docs/development/CONTRIBUTING.md

@@ -109,7 +109,7 @@ To configure the connection to a remote Postgres, you can use the following envi
 
 ```bash
 POSTGRES_USER=postgres
-POSTGERS_PASSWORD=yourPostgresPassword
+POSTGRES_PASSWORD=yourPostgresPassword
 POSTGRES_HOST=localhost
 POSTGRES_DB=postgres # the superuser database to use
 ```

docs/installation/1_planning.md

@@ -59,7 +59,7 @@ In order to install Dendrite, you will need to satisfy the following dependencie
 
 ### Go
 
-At this time, Dendrite supports being built with Go 1.18 or later. We do not support building
+At this time, Dendrite supports being built with Go 1.20 or later. We do not support building
 Dendrite with older versions of Go than this. If you are installing Go using a package manager,
 you should check (by running `go version`) that you are using a suitable version before you start.
 

docs/installation/docker/1_docker.md

@@ -26,6 +26,8 @@ docker run --rm --entrypoint="/usr/bin/generate-keys" \
   -v $(pwd)/config:/mnt \
   matrixdotorg/dendrite-monolith:latest \
   -private-key /mnt/matrix_key.pem
+
+# Windows equivalent: docker run --rm --entrypoint="/usr/bin/generate-keys" -v %cd%/config:/mnt matrixdotorg/dendrite-monolith:latest -private-key /mnt/matrix_key.pem
 ```
 (**NOTE**: This only needs to be executed **once**, as you otherwise overwrite the key)
 
@@ -44,6 +46,8 @@ docker run --rm --entrypoint="/bin/sh" \
     -dir /var/dendrite/ \
     -db postgres://dendrite:itsasecret@postgres/dendrite?sslmode=disable \
     -server YourDomainHere > /mnt/dendrite.yaml"
+
+# Windows equivalent: docker run --rm --entrypoint="/bin/sh" -v %cd%/config:/mnt matrixdotorg/dendrite-monolith:latest -c "/usr/bin/generate-config -dir /var/dendrite/ -db postgres://dendrite:itsasecret@postgres/dendrite?sslmode=disable -server YourDomainHere > /mnt/dendrite.yaml"
 ```
 
 You can then change `config/dendrite.yaml` to your liking.

docs/installation/manual/3_signingkey.md

@@ -2,7 +2,7 @@
 title: Generating signing keys
 parent: Manual
 grand_parent: Installation
-nav_order: 4
+nav_order: 3
 permalink: /installation/manual/signingkeys
 ---
 

docs/installation/manual/4_configuration.md

@@ -2,7 +2,7 @@
 title: Configuring Dendrite
 parent: Manual
 grand_parent: Installation
-nav_order: 3
+nav_order: 4
 permalink: /installation/manual/configuration
 ---
 
@@ -21,7 +21,7 @@ sections:
 
 First of all, you will need to configure the server name of your Matrix homeserver.
 This must match the domain name that you have selected whilst [configuring the domain
-name delegation](domainname#delegation).
+name delegation](../domainname#delegation).
 
 In the `global` section, set the `server_name` to your delegated domain name:
 

federationapi/api/api.go

@@ -27,7 +27,6 @@ type FederationInternalAPI interface {
 	QueryServerKeys(ctx context.Context, request *QueryServerKeysRequest, response *QueryServerKeysResponse) error
 	LookupServerKeys(ctx context.Context, s spec.ServerName, keyRequests map[gomatrixserverlib.PublicKeyLookupRequest]spec.Timestamp) ([]gomatrixserverlib.ServerKeys, error)
 	MSC2836EventRelationships(ctx context.Context, origin, dst spec.ServerName, r fclient.MSC2836EventRelationshipsRequest, roomVersion gomatrixserverlib.RoomVersion) (res fclient.MSC2836EventRelationshipsResponse, err error)
-	MSC2946Spaces(ctx context.Context, origin, dst spec.ServerName, roomID string, suggestedOnly bool) (res fclient.MSC2946SpacesResponse, err error)
 
 	// Broadcasts an EDU to all servers in rooms we are joined to. Used in the yggdrasil demos.
 	PerformBroadcastEDU(
@@ -63,6 +62,8 @@ type RoomserverFederationAPI interface {
 	PerformLeave(ctx context.Context, request *PerformLeaveRequest, response *PerformLeaveResponse) error
 	// Handle sending an invite to a remote server.
 	SendInvite(ctx context.Context, event gomatrixserverlib.PDU, strippedState []gomatrixserverlib.InviteStrippedState) (gomatrixserverlib.PDU, error)
+	// Handle sending an invite to a remote server.
+	SendInviteV3(ctx context.Context, event gomatrixserverlib.ProtoEvent, invitee spec.UserID, version gomatrixserverlib.RoomVersion, strippedState []gomatrixserverlib.InviteStrippedState) (gomatrixserverlib.PDU, error)
 	// Handle an instruction to peek a room on a remote server.
 	PerformOutboundPeek(ctx context.Context, request *PerformOutboundPeekRequest, response *PerformOutboundPeekResponse) error
 	// Query the server names of the joined hosts in a room.
@@ -73,6 +74,8 @@ type RoomserverFederationAPI interface {
 	GetEventAuth(ctx context.Context, origin, s spec.ServerName, roomVersion gomatrixserverlib.RoomVersion, roomID, eventID string) (res fclient.RespEventAuth, err error)
 	GetEvent(ctx context.Context, origin, s spec.ServerName, eventID string) (res gomatrixserverlib.Transaction, err error)
 	LookupMissingEvents(ctx context.Context, origin, s spec.ServerName, roomID string, missing fclient.MissingEvents, roomVersion gomatrixserverlib.RoomVersion) (res fclient.RespMissingEvents, err error)
+
+	RoomHierarchies(ctx context.Context, origin, dst spec.ServerName, roomID string, suggestedOnly bool) (res fclient.RoomHierarchyResponse, err error)
 }
 
 type P2PFederationAPI interface {

federationapi/consumers/keychange.go

@@ -117,19 +117,27 @@ func (t *KeyChangeConsumer) onDeviceKeyMessage(m api.DeviceMessage) bool {
 		return true
 	}
 
-	var queryRes roomserverAPI.QueryRoomsForUserResponse
+	userID, err := spec.NewUserID(m.UserID, true)
-	err = t.rsAPI.QueryRoomsForUser(t.ctx, &roomserverAPI.QueryRoomsForUserRequest{
+	if err != nil {
-		UserID:         m.UserID,
+		sentry.CaptureException(err)
-		WantMembership: "join",
+		logger.WithError(err).Error("invalid user ID")
-	}, &queryRes)
+		return true
+	}
+
+	roomIDs, err := t.rsAPI.QueryRoomsForUser(t.ctx, *userID, "join")
 	if err != nil {
 		sentry.CaptureException(err)
 		logger.WithError(err).Error("failed to calculate joined rooms for user")
 		return true
 	}
 
+	roomIDStrs := make([]string, len(roomIDs))
+	for i, room := range roomIDs {
+		roomIDStrs[i] = room.String()
+	}
+
 	// send this key change to all servers who share rooms with this user.
-	destinations, err := t.db.GetJoinedHostsForRooms(t.ctx, queryRes.RoomIDs, true, true)
+	destinations, err := t.db.GetJoinedHostsForRooms(t.ctx, roomIDStrs, true, true)
 	if err != nil {
 		sentry.CaptureException(err)
 		logger.WithError(err).Error("failed to calculate joined hosts for rooms user is in")
@@ -179,18 +187,27 @@ func (t *KeyChangeConsumer) onCrossSigningMessage(m api.DeviceMessage) bool {
 	}
 	logger := logrus.WithField("user_id", output.UserID)
 
-	var queryRes roomserverAPI.QueryRoomsForUserResponse
+	outputUserID, err := spec.NewUserID(output.UserID, true)
-	err = t.rsAPI.QueryRoomsForUser(t.ctx, &roomserverAPI.QueryRoomsForUserRequest{
+	if err != nil {
-		UserID:         output.UserID,
+		sentry.CaptureException(err)
-		WantMembership: "join",
+		logrus.WithError(err).Errorf("invalid user ID")
-	}, &queryRes)
+		return true
+	}
+
+	rooms, err := t.rsAPI.QueryRoomsForUser(t.ctx, *outputUserID, "join")
 	if err != nil {
 		sentry.CaptureException(err)
 		logger.WithError(err).Error("fedsender key change consumer: failed to calculate joined rooms for user")
 		return true
 	}
+
+	roomIDStrs := make([]string, len(rooms))
+	for i, room := range rooms {
+		roomIDStrs[i] = room.String()
+	}
+
 	// send this key change to all servers who share rooms with this user.
-	destinations, err := t.db.GetJoinedHostsForRooms(t.ctx, queryRes.RoomIDs, true, true)
+	destinations, err := t.db.GetJoinedHostsForRooms(t.ctx, roomIDStrs, true, true)
 	if err != nil {
 		sentry.CaptureException(err)
 		logger.WithError(err).Error("fedsender key change consumer: failed to calculate joined hosts for rooms user is in")

federationapi/consumers/presence.go

@@ -29,6 +29,7 @@ import (
 	"github.com/matrix-org/dendrite/syncapi/types"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/gomatrixserverlib/spec"
+	"github.com/matrix-org/util"
 	"github.com/nats-io/nats.go"
 	log "github.com/sirupsen/logrus"
 )
@@ -94,16 +95,23 @@ func (t *OutputPresenceConsumer) onMessage(ctx context.Context, msgs []*nats.Msg
 		return true
 	}
 
-	var queryRes roomserverAPI.QueryRoomsForUserResponse
+	parsedUserID, err := spec.NewUserID(userID, true)
-	err = t.rsAPI.QueryRoomsForUser(t.ctx, &roomserverAPI.QueryRoomsForUserRequest{
+	if err != nil {
-		UserID:         userID,
+		util.GetLogger(ctx).WithError(err).WithField("user_id", userID).Error("invalid user ID")
-		WantMembership: "join",
+		return true
-	}, &queryRes)
+	}
+
+	roomIDs, err := t.rsAPI.QueryRoomsForUser(t.ctx, *parsedUserID, "join")
 	if err != nil {
 		log.WithError(err).Error("failed to calculate joined rooms for user")
 		return true
 	}
 
+	roomIDStrs := make([]string, len(roomIDs))
+	for i, roomID := range roomIDs {
+		roomIDStrs[i] = roomID.String()
+	}
+
 	presence := msg.Header.Get("presence")
 
 	ts, err := strconv.Atoi(msg.Header.Get("last_active_ts"))
@@ -112,7 +120,7 @@ func (t *OutputPresenceConsumer) onMessage(ctx context.Context, msgs []*nats.Msg
 	}
 
 	// send this presence to all servers who share rooms with this user.
-	joined, err := t.db.GetJoinedHostsForRooms(t.ctx, queryRes.RoomIDs, true, true)
+	joined, err := t.db.GetJoinedHostsForRooms(t.ctx, roomIDStrs, true, true)
 	if err != nil {
 		log.WithError(err).Error("failed to get joined hosts")
 		return true

federationapi/consumers/roomserver.go

@@ -16,7 +16,9 @@ package consumers
 
 import (
 	"context"
+	"encoding/base64"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"strconv"
 	"time"
@@ -174,7 +176,7 @@ func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent, rew
 	// Finally, work out if there are any more events missing.
 	if len(missingEventIDs) > 0 {
 		eventsReq := &api.QueryEventsByIDRequest{
-			RoomID:   ore.Event.RoomID(),
+			RoomID:   ore.Event.RoomID().String(),
 			EventIDs: missingEventIDs,
 		}
 		eventsRes := &api.QueryEventsByIDResponse{}
@@ -192,7 +194,7 @@ func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent, rew
 		evs[i] = addsStateEvents[i].PDU
 	}
 
-	addsJoinedHosts, err := JoinedHostsFromEvents(evs)
+	addsJoinedHosts, err := JoinedHostsFromEvents(s.ctx, evs, s.rsAPI)
 	if err != nil {
 		return err
 	}
@@ -203,7 +205,7 @@ func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent, rew
 	// talking to the roomserver
 	oldJoinedHosts, err := s.db.UpdateRoom(
 		s.ctx,
-		ore.Event.RoomID(),
+		ore.Event.RoomID().String(),
 		addsJoinedHosts,
 		ore.RemovesStateEventIDs,
 		rewritesState, // if we're re-writing state, nuke all joined hosts before adding
@@ -216,7 +218,7 @@ func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent, rew
 	if s.cfg.Matrix.Presence.EnableOutbound && len(addsJoinedHosts) > 0 && ore.Event.Type() == spec.MRoomMember && ore.Event.StateKey() != nil {
 		membership, _ := ore.Event.Membership()
 		if membership == spec.Join {
-			s.sendPresence(ore.Event.RoomID(), addsJoinedHosts)
+			s.sendPresence(ore.Event.RoomID().String(), addsJoinedHosts)
 		}
 	}
 
@@ -345,7 +347,7 @@ func (s *OutputRoomEventConsumer) joinedHostsAtEvent(
 		return nil, err
 	}
 
-	combinedAddsJoinedHosts, err := JoinedHostsFromEvents(combinedAddsEvents)
+	combinedAddsJoinedHosts, err := JoinedHostsFromEvents(s.ctx, combinedAddsEvents, s.rsAPI)
 	if err != nil {
 		return nil, err
 	}
@@ -374,7 +376,7 @@ func (s *OutputRoomEventConsumer) joinedHostsAtEvent(
 	}
 
 	// handle peeking hosts
-	inboundPeeks, err := s.db.GetInboundPeeks(s.ctx, ore.Event.PDU.RoomID())
+	inboundPeeks, err := s.db.GetInboundPeeks(s.ctx, ore.Event.PDU.RoomID().String())
 	if err != nil {
 		return nil, err
 	}
@@ -394,7 +396,7 @@ func (s *OutputRoomEventConsumer) joinedHostsAtEvent(
 // JoinedHostsFromEvents turns a list of state events into a list of joined hosts.
 // This errors if one of the events was invalid.
 // It should be impossible for an invalid event to get this far in the pipeline.
-func JoinedHostsFromEvents(evs []gomatrixserverlib.PDU) ([]types.JoinedHost, error) {
+func JoinedHostsFromEvents(ctx context.Context, evs []gomatrixserverlib.PDU, rsAPI api.FederationRoomserverAPI) ([]types.JoinedHost, error) {
 	var joinedHosts []types.JoinedHost
 	for _, ev := range evs {
 		if ev.Type() != "m.room.member" || ev.StateKey() == nil {
@@ -407,12 +409,26 @@ func JoinedHostsFromEvents(evs []gomatrixserverlib.PDU) ([]types.JoinedHost, err
 		if membership != spec.Join {
 			continue
 		}
-		_, serverName, err := gomatrixserverlib.SplitID('@', *ev.StateKey())
+		var domain spec.ServerName
+		userID, err := rsAPI.QueryUserIDForSender(ctx, ev.RoomID(), spec.SenderID(*ev.StateKey()))
+		if err != nil {
+			if errors.As(err, new(base64.CorruptInputError)) {
+				// Fallback to using the "old" way of getting the user domain, avoids
+				// "illegal base64 data at input byte 0" errors
+				// FIXME: we should do this in QueryUserIDForSender instead
+				_, domain, err = gomatrixserverlib.SplitID('@', *ev.StateKey())
 				if err != nil {
 					return nil, err
 				}
+			} else {
+				return nil, err
+			}
+		} else {
+			domain = userID.Domain()
+		}
+
 		joinedHosts = append(joinedHosts, types.JoinedHost{
-			MemberEventID: ev.EventID(), ServerName: serverName,
+			MemberEventID: ev.EventID(), ServerName: domain,
 		})
 	}
 	return joinedHosts, nil
@@ -490,7 +506,7 @@ func (s *OutputRoomEventConsumer) lookupStateEvents(
 	// At this point the missing events are neither the event itself nor are
 	// they present in our local database. Our only option is to fetch them
 	// from the roomserver using the query API.
-	eventReq := api.QueryEventsByIDRequest{EventIDs: missing, RoomID: event.RoomID()}
+	eventReq := api.QueryEventsByIDRequest{EventIDs: missing, RoomID: event.RoomID().String()}
 	var eventResp api.QueryEventsByIDResponse
 	if err := s.rsAPI.QueryEventsByID(s.ctx, &eventReq, &eventResp); err != nil {
 		return nil, err

federationapi/federationapi.go

@@ -24,7 +24,6 @@ import (
 	"github.com/matrix-org/gomatrixserverlib/fclient"
 	"github.com/sirupsen/logrus"
 
-	"github.com/matrix-org/dendrite/federationapi/api"
 	federationAPI "github.com/matrix-org/dendrite/federationapi/api"
 	"github.com/matrix-org/dendrite/federationapi/consumers"
 	"github.com/matrix-org/dendrite/federationapi/internal"
@@ -95,14 +94,14 @@ func AddPublicRoutes(
 func NewInternalAPI(
 	processContext *process.ProcessContext,
 	dendriteCfg *config.Dendrite,
-	cm sqlutil.Connections,
+	cm *sqlutil.Connections,
 	natsInstance *jetstream.NATSInstance,
 	federation fclient.FederationClient,
 	rsAPI roomserverAPI.FederationRoomserverAPI,
 	caches *caching.Caches,
 	keyRing *gomatrixserverlib.KeyRing,
 	resetBlacklist bool,
-) api.FederationInternalAPI {
+) *internal.FederationInternalAPI {
 	cfg := &dendriteCfg.FederationAPI
 
 	federationDB, err := storage.NewDatabase(processContext.Context(), cm, &cfg.Database, caches, dendriteCfg.Global.IsLocalServerName)
@@ -114,10 +113,7 @@ func NewInternalAPI(
 		_ = federationDB.RemoveAllServersFromBlacklist()
 	}
 
-	stats := statistics.NewStatistics(
+	stats := statistics.NewStatistics(federationDB, cfg.FederationMaxRetries+1, cfg.P2PFederationRetriesUntilAssumedOffline+1, cfg.EnableRelays)
-		federationDB,
-		cfg.FederationMaxRetries+1,
-		cfg.P2PFederationRetriesUntilAssumedOffline+1)
 
 	js, nats := natsInstance.Prepare(processContext, &cfg.Matrix.JetStream)
 
@@ -126,7 +122,7 @@ func NewInternalAPI(
 	queues := queue.NewOutgoingQueues(
 		federationDB, processContext,
 		cfg.Matrix.DisableFederation,
-		cfg.Matrix.ServerName, federation, rsAPI, &stats,
+		cfg.Matrix.ServerName, federation, &stats,
 		signingInfo,
 	)
 

federationapi/federationapi_test.go

@@ -5,11 +5,14 @@ import (
 	"crypto/ed25519"
 	"encoding/json"
 	"fmt"
+	"net/http"
+	"net/http/httptest"
 	"strings"
 	"sync"
 	"testing"
 	"time"
 
+	"github.com/matrix-org/dendrite/federationapi/routing"
 	"github.com/matrix-org/dendrite/internal/caching"
 	"github.com/matrix-org/dendrite/internal/httputil"
 	"github.com/matrix-org/dendrite/internal/sqlutil"
@@ -17,7 +20,10 @@ import (
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/gomatrixserverlib/fclient"
 	"github.com/matrix-org/gomatrixserverlib/spec"
+	"github.com/matrix-org/util"
 	"github.com/nats-io/nats.go"
+	"github.com/stretchr/testify/assert"
+	"github.com/tidwall/gjson"
 
 	"github.com/matrix-org/dendrite/federationapi"
 	"github.com/matrix-org/dendrite/federationapi/api"
@@ -33,15 +39,16 @@ import (
 type fedRoomserverAPI struct {
 	rsapi.FederationRoomserverAPI
 	inputRoomEvents   func(ctx context.Context, req *rsapi.InputRoomEventsRequest, res *rsapi.InputRoomEventsResponse)
-	queryRoomsForUser func(ctx context.Context, req *rsapi.QueryRoomsForUserRequest, res *rsapi.QueryRoomsForUserResponse) error
+	queryRoomsForUser func(ctx context.Context, userID spec.UserID, desiredMembership string) ([]spec.RoomID, error)
 }
 
 func (f *fedRoomserverAPI) QueryUserIDForSender(ctx context.Context, roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
 	return spec.NewUserID(string(senderID), true)
 }
 
-func (f *fedRoomserverAPI) QuerySenderIDForUser(ctx context.Context, roomID spec.RoomID, userID spec.UserID) (spec.SenderID, error) {
+func (f *fedRoomserverAPI) QuerySenderIDForUser(ctx context.Context, roomID spec.RoomID, userID spec.UserID) (*spec.SenderID, error) {
-	return spec.SenderID(userID.String()), nil
+	senderID := spec.SenderID(userID.String())
+	return &senderID, nil
 }
 
 // PerformJoin will call this function
@@ -53,11 +60,11 @@ func (f *fedRoomserverAPI) InputRoomEvents(ctx context.Context, req *rsapi.Input
 }
 
 // keychange consumer calls this
-func (f *fedRoomserverAPI) QueryRoomsForUser(ctx context.Context, req *rsapi.QueryRoomsForUserRequest, res *rsapi.QueryRoomsForUserResponse) error {
+func (f *fedRoomserverAPI) QueryRoomsForUser(ctx context.Context, userID spec.UserID, desiredMembership string) ([]spec.RoomID, error) {
 	if f.queryRoomsForUser == nil {
-		return nil
+		return nil, nil
 	}
-	return f.queryRoomsForUser(ctx, req, res)
+	return f.queryRoomsForUser(ctx, userID, desiredMembership)
 }
 
 // TODO: This struct isn't generic, only works for TestFederationAPIJoinThenKeyUpdate
@@ -145,7 +152,7 @@ func (f *fedClient) SendJoin(ctx context.Context, origin, s spec.ServerName, eve
 	f.fedClientMutex.Lock()
 	defer f.fedClientMutex.Unlock()
 	for _, r := range f.allowJoins {
-		if r.ID == event.RoomID() {
+		if r.ID == event.RoomID().String() {
 			r.InsertEvent(f.t, &types.HeaderedEvent{PDU: event})
 			f.t.Logf("Join event: %v", event.EventID())
 			res.StateEvents = types.NewEventJSONsFromHeaderedEvents(r.CurrentState())
@@ -198,18 +205,22 @@ func testFederationAPIJoinThenKeyUpdate(t *testing.T, dbType test.DBType) {
 	fmt.Printf("creator: %v joining user: %v\n", creator.ID, joiningUser.ID)
 	room := test.NewRoom(t, creator)
 
+	roomID, err := spec.NewRoomID(room.ID)
+	if err != nil {
+		t.Fatalf("Invalid room ID: %q", roomID)
+	}
+
 	rsapi := &fedRoomserverAPI{
 		inputRoomEvents: func(ctx context.Context, req *rsapi.InputRoomEventsRequest, res *rsapi.InputRoomEventsResponse) {
 			if req.Asynchronous {
 				t.Errorf("InputRoomEvents from PerformJoin MUST be synchronous")
 			}
 		},
-		queryRoomsForUser: func(ctx context.Context, req *rsapi.QueryRoomsForUserRequest, res *rsapi.QueryRoomsForUserResponse) error {
+		queryRoomsForUser: func(ctx context.Context, userID spec.UserID, desiredMembership string) ([]spec.RoomID, error) {
-			if req.UserID == joiningUser.ID && req.WantMembership == "join" {
+			if userID.String() == joiningUser.ID && desiredMembership == "join" {
-				res.RoomIDs = []string{room.ID}
+				return []spec.RoomID{*roomID}, nil
-				return nil
 			}
-			return fmt.Errorf("unexpected queryRoomsForUser: %+v", *req)
+			return nil, fmt.Errorf("unexpected queryRoomsForUser: %v, %v", userID, desiredMembership)
 		},
 	}
 	fc := &fedClient{
@@ -357,3 +368,126 @@ func TestRoomsV3URLEscapeDoNot404(t *testing.T) {
 		}
 	}
 }
+
+func TestNotaryServer(t *testing.T) {
+	testCases := []struct {
+		name          string
+		httpBody      string
+		pubKeyRequest *gomatrixserverlib.PublicKeyNotaryLookupRequest
+		validateFunc  func(t *testing.T, response util.JSONResponse)
+	}{
+		{
+			name: "empty httpBody",
+			validateFunc: func(t *testing.T, resp util.JSONResponse) {
+				assert.Equal(t, http.StatusBadRequest, resp.Code)
+				nk, ok := resp.JSON.(spec.MatrixError)
+				assert.True(t, ok)
+				assert.Equal(t, spec.ErrorBadJSON, nk.ErrCode)
+			},
+		},
+		{
+			name:     "valid but empty httpBody",
+			httpBody: "{}",
+			validateFunc: func(t *testing.T, resp util.JSONResponse) {
+				want := util.JSONResponse{
+					Code: http.StatusOK,
+					JSON: routing.NotaryKeysResponse{ServerKeys: []json.RawMessage{}},
+				}
+				assert.Equal(t, want, resp)
+			},
+		},
+		{
+			name:     "request all keys using an empty criteria",
+			httpBody: `{"server_keys":{"servera":{}}}`,
+			validateFunc: func(t *testing.T, resp util.JSONResponse) {
+				assert.Equal(t, http.StatusOK, resp.Code)
+				nk, ok := resp.JSON.(routing.NotaryKeysResponse)
+				assert.True(t, ok)
+				assert.Equal(t, "servera", gjson.GetBytes(nk.ServerKeys[0], "server_name").Str)
+				assert.True(t, gjson.GetBytes(nk.ServerKeys[0], "verify_keys.ed25519:someID").Exists())
+			},
+		},
+		{
+			name:     "request all keys using null as the criteria",
+			httpBody: `{"server_keys":{"servera":null}}`,
+			validateFunc: func(t *testing.T, resp util.JSONResponse) {
+				assert.Equal(t, http.StatusOK, resp.Code)
+				nk, ok := resp.JSON.(routing.NotaryKeysResponse)
+				assert.True(t, ok)
+				assert.Equal(t, "servera", gjson.GetBytes(nk.ServerKeys[0], "server_name").Str)
+				assert.True(t, gjson.GetBytes(nk.ServerKeys[0], "verify_keys.ed25519:someID").Exists())
+			},
+		},
+		{
+			name:     "request specific key",
+			httpBody: `{"server_keys":{"servera":{"ed25519:someID":{}}}}`,
+			validateFunc: func(t *testing.T, resp util.JSONResponse) {
+				assert.Equal(t, http.StatusOK, resp.Code)
+				nk, ok := resp.JSON.(routing.NotaryKeysResponse)
+				assert.True(t, ok)
+				assert.Equal(t, "servera", gjson.GetBytes(nk.ServerKeys[0], "server_name").Str)
+				assert.True(t, gjson.GetBytes(nk.ServerKeys[0], "verify_keys.ed25519:someID").Exists())
+			},
+		},
+		{
+			name:     "request multiple servers",
+			httpBody: `{"server_keys":{"servera":{"ed25519:someID":{}},"serverb":{"ed25519:someID":{}}}}`,
+			validateFunc: func(t *testing.T, resp util.JSONResponse) {
+				assert.Equal(t, http.StatusOK, resp.Code)
+				nk, ok := resp.JSON.(routing.NotaryKeysResponse)
+				assert.True(t, ok)
+				wantServers := map[string]struct{}{
+					"servera": {},
+					"serverb": {},
+				}
+				for _, js := range nk.ServerKeys {
+					serverName := gjson.GetBytes(js, "server_name").Str
+					_, ok = wantServers[serverName]
+					assert.True(t, ok, "unexpected servername: %s", serverName)
+					delete(wantServers, serverName)
+					assert.True(t, gjson.GetBytes(js, "verify_keys.ed25519:someID").Exists())
+				}
+				if len(wantServers) > 0 {
+					t.Fatalf("expected response to also contain: %#v", wantServers)
+				}
+			},
+		},
+	}
+
+	test.WithAllDatabases(t, func(t *testing.T, dbType test.DBType) {
+		cfg, processCtx, close := testrig.CreateConfig(t, dbType)
+		defer close()
+		cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
+		caches := caching.NewRistrettoCache(128*1024*1024, time.Hour, caching.DisableMetrics)
+		natsInstance := jetstream.NATSInstance{}
+		fc := &fedClient{
+			keys: map[spec.ServerName]struct {
+				key   ed25519.PrivateKey
+				keyID gomatrixserverlib.KeyID
+			}{
+				"servera": {
+					key:   test.PrivateKeyA,
+					keyID: "ed25519:someID",
+				},
+				"serverb": {
+					key:   test.PrivateKeyB,
+					keyID: "ed25519:someID",
+				},
+			},
+		}
+
+		fedAPI := federationapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, fc, nil, caches, nil, true)
+
+		for _, tc := range testCases {
+			t.Run(tc.name, func(t *testing.T) {
+				req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(tc.httpBody))
+				req.Host = string(cfg.Global.ServerName)
+
+				resp := routing.NotaryKeys(req, &cfg.FederationAPI, fedAPI, tc.pubKeyRequest)
+				// assert that we received the expected response
+				tc.validateFunc(t, resp)
+			})
+		}
+
+	})
+}

federationapi/internal/api.go

@@ -54,11 +54,14 @@ func NewFederationInternalAPI(
 			KeyDatabase: serverKeyDB,
 		}
 
+		pubKey := cfg.Matrix.PrivateKey.Public().(ed25519.PublicKey)
 		addDirectFetcher := func() {
 			keyRing.KeyFetchers = append(
 				keyRing.KeyFetchers,
 				&gomatrixserverlib.DirectKeyFetcher{
 					Client:            federation,
+					IsLocalServerName: cfg.Matrix.IsLocalServerName,
+					LocalPublicKey:    []byte(pubKey),
 				},
 			)
 		}
@@ -109,7 +112,7 @@ func NewFederationInternalAPI(
 	}
 }
 
-func (a *FederationInternalAPI) isBlacklistedOrBackingOff(s spec.ServerName) (*statistics.ServerStatistics, error) {
+func (a *FederationInternalAPI) IsBlacklistedOrBackingOff(s spec.ServerName) (*statistics.ServerStatistics, error) {
 	stats := a.statistics.ForServer(s)
 	if stats.Blacklisted() {
 		return stats, &api.FederationClientError{
@@ -148,7 +151,7 @@ func failBlacklistableError(err error, stats *statistics.ServerStatistics) (unti
 func (a *FederationInternalAPI) doRequestIfNotBackingOffOrBlacklisted(
 	s spec.ServerName, request func() (interface{}, error),
 ) (interface{}, error) {
-	stats, err := a.isBlacklistedOrBackingOff(s)
+	stats, err := a.IsBlacklistedOrBackingOff(s)
 	if err != nil {
 		return nil, err
 	}

federationapi/internal/federationclient.go

@@ -29,7 +29,7 @@ func (a *FederationInternalAPI) MakeJoin(
 func (a *FederationInternalAPI) SendJoin(
 	ctx context.Context, origin, s spec.ServerName, event gomatrixserverlib.PDU,
 ) (res gomatrixserverlib.SendJoinResponse, err error) {
-	ctx, cancel := context.WithTimeout(ctx, defaultTimeout)
+	ctx, cancel := context.WithTimeout(ctx, time.Minute*5)
 	defer cancel()
 	ires, err := a.federation.SendJoin(ctx, origin, s, event)
 	if err != nil {
@@ -194,16 +194,16 @@ func (a *FederationInternalAPI) MSC2836EventRelationships(
 	return ires.(fclient.MSC2836EventRelationshipsResponse), nil
 }
 
-func (a *FederationInternalAPI) MSC2946Spaces(
+func (a *FederationInternalAPI) RoomHierarchies(
 	ctx context.Context, origin, s spec.ServerName, roomID string, suggestedOnly bool,
-) (res fclient.MSC2946SpacesResponse, err error) {
+) (res fclient.RoomHierarchyResponse, err error) {
 	ctx, cancel := context.WithTimeout(ctx, time.Minute)
 	defer cancel()
 	ires, err := a.doRequestIfNotBlacklisted(s, func() (interface{}, error) {
-		return a.federation.MSC2946Spaces(ctx, origin, s, roomID, suggestedOnly)
+		return a.federation.RoomHierarchy(ctx, origin, s, roomID, suggestedOnly)
 	})
 	if err != nil {
 		return res, err
 	}
-	return ires.(fclient.MSC2946SpacesResponse), nil
+	return ires.(fclient.RoomHierarchyResponse), nil
 }

federationapi/internal/federationclient_test.go

@@ -61,11 +61,11 @@ func TestFederationClientQueryKeys(t *testing.T) {
 		},
 	}
 	fedClient := &testFedClient{}
-	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline, false)
 	queues := queue.NewOutgoingQueues(
 		testDB, process.NewProcessContext(),
 		false,
-		cfg.Matrix.ServerName, fedClient, nil, &stats,
+		cfg.Matrix.ServerName, fedClient, &stats,
 		nil,
 	)
 	fedapi := FederationInternalAPI{
@@ -92,11 +92,11 @@ func TestFederationClientQueryKeysBlacklisted(t *testing.T) {
 		},
 	}
 	fedClient := &testFedClient{}
-	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline, false)
 	queues := queue.NewOutgoingQueues(
 		testDB, process.NewProcessContext(),
 		false,
-		cfg.Matrix.ServerName, fedClient, nil, &stats,
+		cfg.Matrix.ServerName, fedClient, &stats,
 		nil,
 	)
 	fedapi := FederationInternalAPI{
@@ -122,11 +122,11 @@ func TestFederationClientQueryKeysFailure(t *testing.T) {
 		},
 	}
 	fedClient := &testFedClient{shouldFail: true}
-	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline, false)
 	queues := queue.NewOutgoingQueues(
 		testDB, process.NewProcessContext(),
 		false,
-		cfg.Matrix.ServerName, fedClient, nil, &stats,
+		cfg.Matrix.ServerName, fedClient, &stats,
 		nil,
 	)
 	fedapi := FederationInternalAPI{
@@ -152,11 +152,11 @@ func TestFederationClientClaimKeys(t *testing.T) {
 		},
 	}
 	fedClient := &testFedClient{}
-	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline, false)
 	queues := queue.NewOutgoingQueues(
 		testDB, process.NewProcessContext(),
 		false,
-		cfg.Matrix.ServerName, fedClient, nil, &stats,
+		cfg.Matrix.ServerName, fedClient, &stats,
 		nil,
 	)
 	fedapi := FederationInternalAPI{
@@ -183,11 +183,11 @@ func TestFederationClientClaimKeysBlacklisted(t *testing.T) {
 		},
 	}
 	fedClient := &testFedClient{}
-	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline, false)
 	queues := queue.NewOutgoingQueues(
 		testDB, process.NewProcessContext(),
 		false,
-		cfg.Matrix.ServerName, fedClient, nil, &stats,
+		cfg.Matrix.ServerName, fedClient, &stats,
 		nil,
 	)
 	fedapi := FederationInternalAPI{

federationapi/internal/perform.go

@@ -2,6 +2,7 @@ package internal
 
 import (
 	"context"
+	"crypto/ed25519"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -170,13 +171,24 @@ func (r *FederationInternalAPI) performJoinUsingServer(
 		UserIDQuerier: func(roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
 			return r.rsAPI.QueryUserIDForSender(ctx, roomID, senderID)
 		},
-		SenderIDCreator: func(ctx context.Context, userID spec.UserID, roomID spec.RoomID) (spec.SenderID, error) {
+		GetOrCreateSenderID: func(ctx context.Context, userID spec.UserID, roomID spec.RoomID, roomVersion string) (spec.SenderID, ed25519.PrivateKey, error) {
+			// assign a roomNID, otherwise we can't create a private key for the user
+			_, nidErr := r.rsAPI.AssignRoomNID(ctx, roomID, gomatrixserverlib.RoomVersion(roomVersion))
+			if nidErr != nil {
+				return "", nil, nidErr
+			}
 			key, keyErr := r.rsAPI.GetOrCreateUserRoomPrivateKey(ctx, userID, roomID)
 			if keyErr != nil {
-				return "", keyErr
+				return "", nil, keyErr
 			}
-
+			return spec.SenderIDFromPseudoIDKey(key), key, nil
-			return spec.SenderID(spec.Base64Bytes(key).Encode()), nil
+		},
+		StoreSenderIDFromPublicID: func(ctx context.Context, senderID spec.SenderID, userIDRaw string, roomID spec.RoomID) error {
+			storeUserID, userErr := spec.NewUserID(userIDRaw, true)
+			if userErr != nil {
+				return userErr
+			}
+			return r.rsAPI.StoreUserRoomPublicKey(ctx, senderID, *storeUserID, roomID)
 		},
 	}
 	response, joinErr := gomatrixserverlib.PerformJoin(ctx, r, joinInput)
@@ -200,7 +212,7 @@ func (r *FederationInternalAPI) performJoinUsingServer(
 	// joining a room, waiting for 200 OK then changing device keys and have those keys not be sent
 	// to other servers (this was a cause of a flakey sytest "Local device key changes get to remote servers")
 	// The events are trusted now as we performed auth checks above.
-	joinedHosts, err := consumers.JoinedHostsFromEvents(response.StateSnapshot.GetStateEvents().TrustedEvents(response.JoinEvent.Version(), false))
+	joinedHosts, err := consumers.JoinedHostsFromEvents(ctx, response.StateSnapshot.GetStateEvents().TrustedEvents(response.JoinEvent.Version(), false), r.rsAPI)
 	if err != nil {
 		return fmt.Errorf("JoinedHostsFromEvents: failed to get joined hosts: %s", err)
 	}
@@ -469,8 +481,10 @@ func (r *FederationInternalAPI) PerformLeave(
 		senderID, err := r.rsAPI.QuerySenderIDForUser(ctx, *roomID, *userID)
 		if err != nil {
 			return err
+		} else if senderID == nil {
+			return fmt.Errorf("sender ID not found for %s in %s", *userID, *roomID)
 		}
-		senderIDString := string(senderID)
+		senderIDString := string(*senderID)
 		respMakeLeave.LeaveEvent.Type = spec.MRoomMember
 		respMakeLeave.LeaveEvent.SenderID = senderIDString
 		respMakeLeave.LeaveEvent.StateKey = &senderIDString
@@ -534,11 +548,7 @@ func (r *FederationInternalAPI) SendInvite(
 	event gomatrixserverlib.PDU,
 	strippedState []gomatrixserverlib.InviteStrippedState,
 ) (gomatrixserverlib.PDU, error) {
-	validRoomID, err := spec.NewRoomID(event.RoomID())
+	inviter, err := r.rsAPI.QueryUserIDForSender(ctx, event.RoomID(), event.SenderID())
-	if err != nil {
-		return nil, err
-	}
-	inviter, err := r.rsAPI.QueryUserIDForSender(ctx, *validRoomID, event.SenderID())
 	if err != nil {
 		return nil, err
 	}
@@ -561,7 +571,7 @@ func (r *FederationInternalAPI) SendInvite(
 	logrus.WithFields(logrus.Fields{
 		"event_id":     event.EventID(),
 		"user_id":      *event.StateKey(),
-		"room_id":      event.RoomID(),
+		"room_id":      event.RoomID().String(),
 		"room_version": event.Version(),
 		"destination":  destination,
 	}).Info("Sending invite")
@@ -587,6 +597,58 @@ func (r *FederationInternalAPI) SendInvite(
 	return inviteEvent, nil
 }
 
+// SendInviteV3 implements api.FederationInternalAPI
+func (r *FederationInternalAPI) SendInviteV3(
+	ctx context.Context,
+	event gomatrixserverlib.ProtoEvent,
+	invitee spec.UserID,
+	version gomatrixserverlib.RoomVersion,
+	strippedState []gomatrixserverlib.InviteStrippedState,
+) (gomatrixserverlib.PDU, error) {
+	validRoomID, err := spec.NewRoomID(event.RoomID)
+	if err != nil {
+		return nil, err
+	}
+	verImpl, err := gomatrixserverlib.GetRoomVersion(version)
+	if err != nil {
+		return nil, err
+	}
+
+	inviter, err := r.rsAPI.QueryUserIDForSender(ctx, *validRoomID, spec.SenderID(event.SenderID))
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO (devon): This should be allowed via a relay. Currently only transactions
+	// can be sent to relays. Would need to extend relays to handle invites.
+	if !r.shouldAttemptDirectFederation(invitee.Domain()) {
+		return nil, fmt.Errorf("relay servers have no meaningful response for invite.")
+	}
+
+	logrus.WithFields(logrus.Fields{
+		"user_id":      invitee.String(),
+		"room_id":      event.RoomID,
+		"room_version": version,
+		"destination":  invitee.Domain(),
+	}).Info("Sending invite")
+
+	inviteReq, err := fclient.NewInviteV3Request(event, version, strippedState)
+	if err != nil {
+		return nil, fmt.Errorf("gomatrixserverlib.NewInviteV3Request: %w", err)
+	}
+
+	inviteRes, err := r.federation.SendInviteV3(ctx, inviter.Domain(), invitee.Domain(), inviteReq, invitee)
+	if err != nil {
+		return nil, fmt.Errorf("r.federation.SendInviteV3: failed to send invite: %w", err)
+	}
+
+	inviteEvent, err := verImpl.NewEventFromUntrustedJSON(inviteRes.Event)
+	if err != nil {
+		return nil, fmt.Errorf("r.federation.SendInviteV3 failed to decode event response: %w", err)
+	}
+	return inviteEvent, nil
+}
+
 // PerformServersAlive implements api.FederationInternalAPI
 func (r *FederationInternalAPI) PerformBroadcastEDU(
 	ctx context.Context,

federationapi/internal/perform_test.go

@@ -16,6 +16,7 @@ package internal
 
 import (
 	"context"
+	"crypto/ed25519"
 	"testing"
 
 	"github.com/matrix-org/dendrite/federationapi/api"
@@ -53,19 +54,23 @@ func TestPerformWakeupServers(t *testing.T) {
 	assert.NoError(t, err)
 	assert.True(t, offline)
 
+	_, key, err := ed25519.GenerateKey(nil)
+	assert.NoError(t, err)
 	cfg := config.FederationAPI{
 		Matrix: &config.Global{
 			SigningIdentity: fclient.SigningIdentity{
 				ServerName: "relay",
+				KeyID:      "ed25519:1",
+				PrivateKey: key,
 			},
 		},
 	}
 	fedClient := &testFedClient{}
-	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline, true)
 	queues := queue.NewOutgoingQueues(
 		testDB, process.NewProcessContext(),
 		false,
-		cfg.Matrix.ServerName, fedClient, nil, &stats,
+		cfg.Matrix.ServerName, fedClient, &stats,
 		nil,
 	)
 	fedAPI := NewFederationInternalAPI(
@@ -95,19 +100,23 @@ func TestQueryRelayServers(t *testing.T) {
 	err := testDB.P2PAddRelayServersForServer(context.Background(), server, relayServers)
 	assert.NoError(t, err)
 
+	_, key, err := ed25519.GenerateKey(nil)
+	assert.NoError(t, err)
 	cfg := config.FederationAPI{
 		Matrix: &config.Global{
 			SigningIdentity: fclient.SigningIdentity{
 				ServerName: "relay",
+				KeyID:      "ed25519:1",
+				PrivateKey: key,
 			},
 		},
 	}
 	fedClient := &testFedClient{}
-	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline, false)
 	queues := queue.NewOutgoingQueues(
 		testDB, process.NewProcessContext(),
 		false,
-		cfg.Matrix.ServerName, fedClient, nil, &stats,
+		cfg.Matrix.ServerName, fedClient, &stats,
 		nil,
 	)
 	fedAPI := NewFederationInternalAPI(
@@ -132,19 +141,23 @@ func TestRemoveRelayServers(t *testing.T) {
 	err := testDB.P2PAddRelayServersForServer(context.Background(), server, relayServers)
 	assert.NoError(t, err)
 
+	_, key, err := ed25519.GenerateKey(nil)
+	assert.NoError(t, err)
 	cfg := config.FederationAPI{
 		Matrix: &config.Global{
 			SigningIdentity: fclient.SigningIdentity{
 				ServerName: "relay",
+				KeyID:      "ed25519:1",
+				PrivateKey: key,
 			},
 		},
 	}
 	fedClient := &testFedClient{}
-	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline, false)
 	queues := queue.NewOutgoingQueues(
 		testDB, process.NewProcessContext(),
 		false,
-		cfg.Matrix.ServerName, fedClient, nil, &stats,
+		cfg.Matrix.ServerName, fedClient, &stats,
 		nil,
 	)
 	fedAPI := NewFederationInternalAPI(
@@ -168,19 +181,23 @@ func TestRemoveRelayServers(t *testing.T) {
 func TestPerformDirectoryLookup(t *testing.T) {
 	testDB := test.NewInMemoryFederationDatabase()
 
+	_, key, err := ed25519.GenerateKey(nil)
+	assert.NoError(t, err)
 	cfg := config.FederationAPI{
 		Matrix: &config.Global{
 			SigningIdentity: fclient.SigningIdentity{
 				ServerName: "relay",
+				KeyID:      "ed25519:1",
+				PrivateKey: key,
 			},
 		},
 	}
 	fedClient := &testFedClient{}
-	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline, false)
 	queues := queue.NewOutgoingQueues(
 		testDB, process.NewProcessContext(),
 		false,
-		cfg.Matrix.ServerName, fedClient, nil, &stats,
+		cfg.Matrix.ServerName, fedClient, &stats,
 		nil,
 	)
 	fedAPI := NewFederationInternalAPI(
@@ -192,7 +209,7 @@ func TestPerformDirectoryLookup(t *testing.T) {
 		ServerName: "server",
 	}
 	res := api.PerformDirectoryLookupResponse{}
-	err := fedAPI.PerformDirectoryLookup(context.Background(), &req, &res)
+	err = fedAPI.PerformDirectoryLookup(context.Background(), &req, &res)
 	assert.NoError(t, err)
 }
 
@@ -203,19 +220,23 @@ func TestPerformDirectoryLookupRelaying(t *testing.T) {
 	testDB.SetServerAssumedOffline(context.Background(), server)
 	testDB.P2PAddRelayServersForServer(context.Background(), server, []spec.ServerName{"relay"})
 
+	_, key, err := ed25519.GenerateKey(nil)
+	assert.NoError(t, err)
 	cfg := config.FederationAPI{
 		Matrix: &config.Global{
 			SigningIdentity: fclient.SigningIdentity{
-				ServerName: server,
+				ServerName: "relay",
+				KeyID:      "ed25519:1",
+				PrivateKey: key,
 			},
 		},
 	}
 	fedClient := &testFedClient{}
-	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(testDB, FailuresUntilBlacklist, FailuresUntilAssumedOffline, true)
 	queues := queue.NewOutgoingQueues(
 		testDB, process.NewProcessContext(),
 		false,
-		cfg.Matrix.ServerName, fedClient, nil, &stats,
+		cfg.Matrix.ServerName, fedClient, &stats,
 		nil,
 	)
 	fedAPI := NewFederationInternalAPI(
@@ -227,6 +248,6 @@ func TestPerformDirectoryLookupRelaying(t *testing.T) {
 		ServerName: server,
 	}
 	res := api.PerformDirectoryLookupResponse{}
-	err := fedAPI.PerformDirectoryLookup(context.Background(), &req, &res)
+	err = fedAPI.PerformDirectoryLookup(context.Background(), &req, &res)
 	assert.Error(t, err)
 }

federationapi/internal/query.go

@@ -43,6 +43,15 @@ func (a *FederationInternalAPI) fetchServerKeysFromCache(
 	ctx context.Context, req *api.QueryServerKeysRequest,
 ) ([]gomatrixserverlib.ServerKeys, error) {
 	var results []gomatrixserverlib.ServerKeys
+
+	// We got a request for _all_ server keys, return them.
+	if len(req.KeyIDToCriteria) == 0 {
+		serverKeysResponses, _ := a.db.GetNotaryKeys(ctx, req.ServerName, []gomatrixserverlib.KeyID{})
+		if len(serverKeysResponses) == 0 {
+			return nil, fmt.Errorf("failed to find server key response for server %s", req.ServerName)
+		}
+		return serverKeysResponses, nil
+	}
 	for keyID, criteria := range req.KeyIDToCriteria {
 		serverKeysResponses, _ := a.db.GetNotaryKeys(ctx, req.ServerName, []gomatrixserverlib.KeyID{keyID})
 		if len(serverKeysResponses) == 0 {

federationapi/queue/destinationqueue.go

@@ -19,6 +19,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"sync"
+	"sync/atomic"
 	"time"
 
 	"github.com/matrix-org/gomatrix"
@@ -26,12 +27,10 @@ import (
 	"github.com/matrix-org/gomatrixserverlib/fclient"
 	"github.com/matrix-org/gomatrixserverlib/spec"
 	"github.com/sirupsen/logrus"
-	"go.uber.org/atomic"
 
 	"github.com/matrix-org/dendrite/federationapi/statistics"
 	"github.com/matrix-org/dendrite/federationapi/storage"
 	"github.com/matrix-org/dendrite/federationapi/storage/shared/receipt"
-	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/dendrite/roomserver/types"
 	"github.com/matrix-org/dendrite/setup/process"
 )
@@ -53,7 +52,6 @@ type destinationQueue struct {
 	db                 storage.Database
 	process            *process.ProcessContext
 	signing            map[spec.ServerName]*fclient.SigningIdentity
-	rsAPI              api.FederationRoomserverAPI
 	client             fclient.FederationClient        // federation client
 	origin             spec.ServerName                 // origin of requests
 	destination        spec.ServerName                 // destination of requests
@@ -296,6 +294,10 @@ func (oq *destinationQueue) checkNotificationsOnClose() {
 
 // backgroundSend is the worker goroutine for sending events.
 func (oq *destinationQueue) backgroundSend() {
+	// Don't try to send transactions if we are shutting down.
+	if oq.process.Context().Err() != nil {
+		return
+	}
 	// Check if a worker is already running, and if it isn't, then
 	// mark it as started.
 	if !oq.running.CompareAndSwap(false, true) {

federationapi/queue/queue.go

@@ -27,12 +27,10 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/sirupsen/logrus"
 	log "github.com/sirupsen/logrus"
-	"github.com/tidwall/gjson"
 
 	"github.com/matrix-org/dendrite/federationapi/statistics"
 	"github.com/matrix-org/dendrite/federationapi/storage"
 	"github.com/matrix-org/dendrite/federationapi/storage/shared/receipt"
-	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/dendrite/roomserver/types"
 	"github.com/matrix-org/dendrite/setup/process"
 )
@@ -43,7 +41,6 @@ type OutgoingQueues struct {
 	db          storage.Database
 	process     *process.ProcessContext
 	disabled    bool
-	rsAPI       api.FederationRoomserverAPI
 	origin      spec.ServerName
 	client      fclient.FederationClient
 	statistics  *statistics.Statistics
@@ -90,7 +87,6 @@ func NewOutgoingQueues(
 	disabled bool,
 	origin spec.ServerName,
 	client fclient.FederationClient,
-	rsAPI api.FederationRoomserverAPI,
 	statistics *statistics.Statistics,
 	signing []*fclient.SigningIdentity,
 ) *OutgoingQueues {
@@ -98,7 +94,6 @@ func NewOutgoingQueues(
 		disabled:   disabled,
 		process:    process,
 		db:         db,
-		rsAPI:      rsAPI,
 		origin:     origin,
 		client:     client,
 		statistics: statistics,
@@ -162,7 +157,6 @@ func (oqs *OutgoingQueues) getQueue(destination spec.ServerName) *destinationQue
 			queues:      oqs,
 			db:          oqs.db,
 			process:     oqs.process,
-			rsAPI:       oqs.rsAPI,
 			origin:      oqs.origin,
 			destination: destination,
 			client:      oqs.client,
@@ -213,18 +207,6 @@ func (oqs *OutgoingQueues) SendEvent(
 		delete(destmap, local)
 	}
 
-	// Check if any of the destinations are prohibited by server ACLs.
-	for destination := range destmap {
-		if api.IsServerBannedFromRoom(
-			oqs.process.Context(),
-			oqs.rsAPI,
-			ev.RoomID(),
-			destination,
-		) {
-			delete(destmap, destination)
-		}
-	}
-
 	// If there are no remaining destinations then give up.
 	if len(destmap) == 0 {
 		return nil
@@ -303,24 +285,6 @@ func (oqs *OutgoingQueues) SendEDU(
 		delete(destmap, local)
 	}
 
-	// There is absolutely no guarantee that the EDU will have a room_id
-	// field, as it is not required by the spec. However, if it *does*
-	// (e.g. typing notifications) then we should try to make sure we don't
-	// bother sending them to servers that are prohibited by the server
-	// ACLs.
-	if result := gjson.GetBytes(e.Content, "room_id"); result.Exists() {
-		for destination := range destmap {
-			if api.IsServerBannedFromRoom(
-				oqs.process.Context(),
-				oqs.rsAPI,
-				result.Str,
-				destination,
-			) {
-				delete(destmap, destination)
-			}
-		}
-	}
-
 	// If there are no remaining destinations then give up.
 	if len(destmap) == 0 {
 		return nil

federationapi/queue/queue_test.go

@@ -18,6 +18,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"sync/atomic"
 	"testing"
 	"time"
 
@@ -26,7 +27,6 @@ import (
 	"github.com/matrix-org/dendrite/test/testrig"
 	"github.com/matrix-org/gomatrixserverlib/fclient"
 	"github.com/matrix-org/gomatrixserverlib/spec"
-	"go.uber.org/atomic"
 	"gotest.tools/v3/poll"
 
 	"github.com/matrix-org/gomatrixserverlib"
@@ -34,7 +34,6 @@ import (
 
 	"github.com/matrix-org/dendrite/federationapi/statistics"
 	"github.com/matrix-org/dendrite/federationapi/storage"
-	rsapi "github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/dendrite/roomserver/types"
 	"github.com/matrix-org/dendrite/setup/config"
 	"github.com/matrix-org/dendrite/setup/process"
@@ -65,15 +64,6 @@ func mustCreateFederationDatabase(t *testing.T, dbType test.DBType, realDatabase
 	}
 }
 
-type stubFederationRoomServerAPI struct {
-	rsapi.FederationRoomserverAPI
-}
-
-func (r *stubFederationRoomServerAPI) QueryServerBannedFromRoom(ctx context.Context, req *rsapi.QueryServerBannedFromRoomRequest, res *rsapi.QueryServerBannedFromRoomResponse) error {
-	res.Banned = false
-	return nil
-}
-
 type stubFederationClient struct {
 	fclient.FederationClient
 	shouldTxSucceed      bool
@@ -104,7 +94,7 @@ func (f *stubFederationClient) P2PSendTransactionToRelay(ctx context.Context, u
 
 func mustCreatePDU(t *testing.T) *types.HeaderedEvent {
 	t.Helper()
-	content := `{"type":"m.room.message"}`
+	content := `{"type":"m.room.message", "room_id":"!room:a"}`
 	ev, err := gomatrixserverlib.MustGetRoomVersion(gomatrixserverlib.RoomVersionV10).NewEventFromTrustedJSON([]byte(content), false)
 	if err != nil {
 		t.Fatalf("failed to create event: %v", err)
@@ -123,12 +113,11 @@ func testSetup(failuresUntilBlacklist uint32, failuresUntilAssumedOffline uint32
 	fc := &stubFederationClient{
 		shouldTxSucceed:      shouldTxSucceed,
 		shouldTxRelaySucceed: shouldTxRelaySucceed,
-		txCount:              *atomic.NewUint32(0),
+		txCount:              atomic.Uint32{},
-		txRelayCount:         *atomic.NewUint32(0),
+		txRelayCount:         atomic.Uint32{},
 	}
-	rs := &stubFederationRoomServerAPI{}
 
-	stats := statistics.NewStatistics(db, failuresUntilBlacklist, failuresUntilAssumedOffline)
+	stats := statistics.NewStatistics(db, failuresUntilBlacklist, failuresUntilAssumedOffline, false)
 	signingInfo := []*fclient.SigningIdentity{
 		{
 			KeyID:      "ed21019:auto",
@@ -136,7 +125,7 @@ func testSetup(failuresUntilBlacklist uint32, failuresUntilAssumedOffline uint32
 			ServerName: "localhost",
 		},
 	}
-	queues := NewOutgoingQueues(db, processContext, false, "localhost", fc, rs, &stats, signingInfo)
+	queues := NewOutgoingQueues(db, processContext, false, "localhost", fc, &stats, signingInfo)
 
 	return db, fc, queues, processContext, close
 }

federationapi/routing/backfill.go

@@ -95,6 +95,12 @@ func Backfill(
 		}
 	}
 
+	// Enforce a limit of 100 events, as not to hit the DB to hard.
+	// Synapse has a hard limit of 100 events as well.
+	if req.Limit > 100 {
+		req.Limit = 100
+	}
+
 	// Query the Roomserver.
 	if err = rsAPI.PerformBackfill(httpReq.Context(), &req, &res); err != nil {
 		util.GetLogger(httpReq.Context()).WithError(err).Error("query.PerformBackfill failed")
@@ -109,7 +115,7 @@ func Backfill(
 
 	var ev *types.HeaderedEvent
 	for _, ev = range res.Events {
-		if ev.RoomID() == roomID {
+		if ev.RoomID().String() == roomID {
 			evs = append(evs, ev.PDU)
 		}
 	}

federationapi/routing/eventauth.go

@@ -42,10 +42,10 @@ func GetEventAuth(
 		return *resErr
 	}
 
-	if event.RoomID() != roomID {
+	if event.RoomID().String() != roomID {
 		return util.JSONResponse{Code: http.StatusNotFound, JSON: spec.NotFound("event does not belong to this room")}
 	}
-	resErr = allowedToSeeEvent(ctx, request.Origin(), rsAPI, eventID, event.RoomID())
+	resErr = allowedToSeeEvent(ctx, request.Origin(), rsAPI, eventID, event.RoomID().String())
 	if resErr != nil {
 		return *resErr
 	}

federationapi/routing/events.go

@@ -42,7 +42,7 @@ func GetEvent(
 		return *err
 	}
 
-	err = allowedToSeeEvent(ctx, request.Origin(), rsAPI, eventID, event.RoomID())
+	err = allowedToSeeEvent(ctx, request.Origin(), rsAPI, eventID, event.RoomID().String())
 	if err != nil {
 		return *err
 	}

federationapi/routing/invite.go

@@ -16,6 +16,7 @@ package routing
 
 import (
 	"context"
+	"crypto/ed25519"
 	"encoding/json"
 	"fmt"
 	"net/http"
@@ -29,6 +30,73 @@ import (
 	"github.com/matrix-org/util"
 )
 
+// InviteV3 implements /_matrix/federation/v2/invite/{roomID}/{userID}
+func InviteV3(
+	httpReq *http.Request,
+	request *fclient.FederationRequest,
+	roomID spec.RoomID,
+	invitedUser spec.UserID,
+	cfg *config.FederationAPI,
+	rsAPI api.FederationRoomserverAPI,
+	keys gomatrixserverlib.JSONVerifier,
+) util.JSONResponse {
+	inviteReq := fclient.InviteV3Request{}
+	err := json.Unmarshal(request.Content(), &inviteReq)
+	if err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.BadJSON(err.Error()),
+		}
+	}
+	if !cfg.Matrix.IsLocalServerName(invitedUser.Domain()) {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: spec.InvalidParam("The invited user domain does not belong to this server"),
+		}
+	}
+
+	input := gomatrixserverlib.HandleInviteV3Input{
+		HandleInviteInput: gomatrixserverlib.HandleInviteInput{
+			RoomVersion:       inviteReq.RoomVersion(),
+			RoomID:            roomID,
+			InvitedUser:       invitedUser,
+			KeyID:             cfg.Matrix.KeyID,
+			PrivateKey:        cfg.Matrix.PrivateKey,
+			Verifier:          keys,
+			RoomQuerier:       rsAPI,
+			MembershipQuerier: &api.MembershipQuerier{Roomserver: rsAPI},
+			StateQuerier:      rsAPI.StateQuerier(),
+			InviteEvent:       nil,
+			StrippedState:     inviteReq.InviteRoomState(),
+			UserIDQuerier: func(roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
+				return rsAPI.QueryUserIDForSender(httpReq.Context(), roomID, senderID)
+			},
+		},
+		InviteProtoEvent: inviteReq.Event(),
+		GetOrCreateSenderID: func(ctx context.Context, userID spec.UserID, roomID spec.RoomID, roomVersion string) (spec.SenderID, ed25519.PrivateKey, error) {
+			// assign a roomNID, otherwise we can't create a private key for the user
+			_, nidErr := rsAPI.AssignRoomNID(ctx, roomID, gomatrixserverlib.RoomVersion(roomVersion))
+			if nidErr != nil {
+				return "", nil, nidErr
+			}
+			key, keyErr := rsAPI.GetOrCreateUserRoomPrivateKey(ctx, userID, roomID)
+			if keyErr != nil {
+				return "", nil, keyErr
+			}
+
+			return spec.SenderIDFromPseudoIDKey(key), key, nil
+		},
+	}
+	event, jsonErr := handleInviteV3(httpReq.Context(), input, rsAPI)
+	if jsonErr != nil {
+		return *jsonErr
+	}
+	return util.JSONResponse{
+		Code: http.StatusOK,
+		JSON: fclient.RespInviteV2{Event: event.JSON()},
+	}
+}
+
 // InviteV2 implements /_matrix/federation/v2/invite/{roomID}/{eventID}
 func InviteV2(
 	httpReq *http.Request,
@@ -204,6 +272,15 @@ func InviteV1(
 
 func handleInvite(ctx context.Context, input gomatrixserverlib.HandleInviteInput, rsAPI api.FederationRoomserverAPI) (gomatrixserverlib.PDU, *util.JSONResponse) {
 	inviteEvent, err := gomatrixserverlib.HandleInvite(ctx, input)
+	return handleInviteResult(ctx, inviteEvent, err, rsAPI)
+}
+
+func handleInviteV3(ctx context.Context, input gomatrixserverlib.HandleInviteV3Input, rsAPI api.FederationRoomserverAPI) (gomatrixserverlib.PDU, *util.JSONResponse) {
+	inviteEvent, err := gomatrixserverlib.HandleInviteV3(ctx, input)
+	return handleInviteResult(ctx, inviteEvent, err, rsAPI)
+}
+
+func handleInviteResult(ctx context.Context, inviteEvent gomatrixserverlib.PDU, err error, rsAPI api.FederationRoomserverAPI) (gomatrixserverlib.PDU, *util.JSONResponse) {
 	switch e := err.(type) {
 	case nil:
 	case spec.InternalServerError:
@@ -245,4 +322,5 @@ func handleInvite(ctx context.Context, input gomatrixserverlib.HandleInviteInput
 		}
 	}
 	return inviteEvent, nil
+
 }

federationapi/routing/join.go

@@ -15,6 +15,7 @@
 package routing
 
 import (
+	"context"
 	"fmt"
 	"net/http"
 	"sort"
@@ -98,7 +99,7 @@ func MakeJoin(
 		Roomserver: rsAPI,
 	}
 
-	senderID, err := rsAPI.QuerySenderIDForUser(httpReq.Context(), roomID, userID)
+	senderIDPtr, err := rsAPI.QuerySenderIDForUser(httpReq.Context(), roomID, userID)
 	if err != nil {
 		util.GetLogger(httpReq.Context()).WithError(err).Error("rsAPI.QuerySenderIDForUser failed")
 		return util.JSONResponse{
@@ -107,6 +108,13 @@ func MakeJoin(
 		}
 	}
 
+	var senderID spec.SenderID
+	if senderIDPtr == nil {
+		senderID = spec.SenderID(userID.String())
+	} else {
+		senderID = *senderIDPtr
+	}
+
 	input := gomatrixserverlib.HandleMakeJoinInput{
 		Context:           httpReq.Context(),
 		UserID:            userID,
@@ -182,9 +190,6 @@ func MakeJoin(
 }
 
 // SendJoin implements the /send_join API
-// The make-join send-join dance makes much more sense as a single
-// flow so the cyclomatic complexity is high:
-// nolint:gocyclo
 func SendJoin(
 	httpReq *http.Request,
 	request *fclient.FederationRequest,
@@ -218,6 +223,13 @@ func SendJoin(
 		UserIDQuerier: func(roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
 			return rsAPI.QueryUserIDForSender(httpReq.Context(), roomID, senderID)
 		},
+		StoreSenderIDFromPublicID: func(ctx context.Context, senderID spec.SenderID, userIDRaw string, roomID spec.RoomID) error {
+			userID, userErr := spec.NewUserID(userIDRaw, true)
+			if userErr != nil {
+				return userErr
+			}
+			return rsAPI.StoreUserRoomPublicKey(ctx, senderID, *userID, roomID)
+		},
 	}
 	response, joinErr := gomatrixserverlib.HandleSendJoin(input)
 	switch e := joinErr.(type) {

federationapi/routing/keys.go

@@ -197,6 +197,10 @@ func localKeys(cfg *config.FederationAPI, serverName spec.ServerName) (*gomatrix
 	return &keys, err
 }
 
+type NotaryKeysResponse struct {
+	ServerKeys []json.RawMessage `json:"server_keys"`
+}
+
 func NotaryKeys(
 	httpReq *http.Request, cfg *config.FederationAPI,
 	fsAPI federationAPI.FederationInternalAPI,
@@ -217,10 +221,9 @@ func NotaryKeys(
 		}
 	}
 
-	var response struct {
+	response := NotaryKeysResponse{
-		ServerKeys []json.RawMessage `json:"server_keys"`
+		ServerKeys: []json.RawMessage{},
 	}
-	response.ServerKeys = []json.RawMessage{}
 
 	for serverName, kidToCriteria := range req.ServerKeys {
 		var keyList []gomatrixserverlib.ServerKeys