Merge commit '85662a5a57531af5402a6777d0b1089e78c56815' into glitch-soc/merge-upstream

Conflicts:
- `config/initializers/content_security_policy.rb`:
  Upstream reworked the CSP, we kept our version for now.
- `spec/requests/content_security_policy_spec.rb`:
  Upstream reworked the CSP, we kept our version for now.

.devcontainer/post-create.sh

@@ -24,4 +24,4 @@ RAILS_ENV=development ./bin/rails db:setup
 RAILS_ENV=development ./bin/rails assets:precompile
 
 # Precompile assets for test
-RAILS_ENV=test NODE_ENV=tests ./bin/rails assets:precompile
+RAILS_ENV=test ./bin/rails assets:precompile

.eslintrc.js

@@ -1,4 +1,7 @@
-module.exports = {
+// @ts-check
+const { defineConfig } = require('eslint-define-config');
+
+module.exports = defineConfig({
   root: true,
 
   extends: [
@@ -193,6 +196,7 @@ module.exports = {
       'error',
       {
         devDependencies: [
+          '.eslintrc.js',
           'config/webpack/**',
           'app/javascript/mastodon/performance.js',
           'app/javascript/mastodon/test_setup.js',
@@ -297,7 +301,6 @@ module.exports = {
     'formatjs/no-id': 'off', // IDs are used for translation keys
     'formatjs/no-invalid-icu': 'error',
     'formatjs/no-literal-string-in-jsx': 'off', // Should be looked at, but mainly flagging punctuation outside of strings
-    'formatjs/no-multiple-plurals': 'off', // Only used by hashtag.jsx
     'formatjs/no-multiple-whitespaces': 'error',
     'formatjs/no-offset': 'error',
     'formatjs/no-useless-message': 'error',
@@ -316,6 +319,7 @@ module.exports = {
   overrides: [
     {
       files: [
+        '.eslintrc.js',
         '*.config.js',
         '.*rc.js',
         'ide-helper.js',
@@ -389,14 +393,6 @@ module.exports = {
       env: {
         jest: true,
       },
-    },
-    {
-      files: [
-        'streaming/**/*',
+    }
   ],
-      rules: {
-        'import/no-commonjs': 'off',
-      },
-    },
-  ],
-};
+});

.github/workflows/build-container-image.yml

@@ -21,6 +21,8 @@ on:
         type: string
       labels:
         type: string
+      file_to_build:
+        type: string
 
 jobs:
   build-image:
@@ -86,6 +88,7 @@ jobs:
       - uses: docker/build-push-action@v5
         with:
           context: .
+          file: ${{ inputs.file_to_build }}
           build-args: |
             MASTODON_VERSION_PRERELEASE=${{ inputs.version_prerelease }}
             MASTODON_VERSION_METADATA=${{ inputs.version_metadata }}

.github/workflows/build-nightly.yml

@@ -25,6 +25,7 @@ jobs:
     needs: compute-suffix
     uses: ./.github/workflows/build-container-image.yml
     with:
+      file_to_build: Dockerfile
       platforms: linux/amd64,linux/arm64
       use_native_arm64_builder: false
       cache: false
@@ -40,3 +41,25 @@ jobs:
         type=raw,value=nightly
         type=schedule,pattern=${{ needs.compute-suffix.outputs.prerelease }}
     secrets: inherit
+
+  build-image-streaming:
+    needs: compute-suffix
+    uses: ./.github/workflows/build-container-image.yml
+    with:
+      file_to_build: streaming/Dockerfile
+      platforms: linux/amd64,linux/arm64
+      use_native_arm64_builder: true
+      cache: false
+      push_to_images: |
+        tootsuite/mastodon-streaming
+        ghcr.io/mastodon/mastodon-streaming
+      version_prerelease: ${{ needs.compute-suffix.outputs.prerelease }}
+      labels: |
+        org.opencontainers.image.description=Nightly build image used for testing purposes
+      flavor: |
+        latest=auto
+      tags: |
+        type=raw,value=edge
+        type=raw,value=nightly
+        type=schedule,pattern=${{ needs.compute-suffix.outputs.prerelease }}
+    secrets: inherit

.github/workflows/build-push-pr.yml

@@ -29,6 +29,7 @@ jobs:
     needs: compute-suffix
     uses: ./.github/workflows/build-container-image.yml
     with:
+      file_to_build: Dockerfile
       platforms: linux/amd64,linux/arm64
       use_native_arm64_builder: false
       push_to_images: |
@@ -39,3 +40,19 @@ jobs:
       tags: |
         type=ref,event=pr
     secrets: inherit
+
+  build-image-streaming:
+    needs: compute-suffix
+    uses: ./.github/workflows/build-container-image.yml
+    with:
+      file_to_build: streaming/Dockerfile
+      platforms: linux/amd64,linux/arm64
+      use_native_arm64_builder: true
+      push_to_images: |
+        ghcr.io/mastodon/mastodon-streaming
+      version_metadata: ${{ needs.compute-suffix.outputs.metadata }}
+      flavor: |
+        latest=auto
+      tags: |
+        type=ref,event=pr
+    secrets: inherit

.github/workflows/build-releases.yml

@@ -12,6 +12,7 @@ jobs:
   build-image:
     uses: ./.github/workflows/build-container-image.yml
     with:
+      file_to_build: Dockerfile
       platforms: linux/amd64,linux/arm64
       use_native_arm64_builder: false
       push_to_images: |
@@ -26,3 +27,24 @@ jobs:
         type=pep440,pattern={{raw}}
         type=pep440,pattern=v{{major}}.{{minor}}
     secrets: inherit
+
+  build-image-streaming:
+    if: startsWith(github.ref, 'refs/tags/v4.3.')
+    uses: ./.github/workflows/build-container-image.yml
+    with:
+      file_to_build: streaming/Dockerfile
+      platforms: linux/amd64,linux/arm64
+      use_native_arm64_builder: true
+      push_to_images: |
+        tootsuite/mastodon-streaming
+        ghcr.io/mastodon/mastodon-streaming
+      # Do not use cache when building releases, so apt update is always ran and the release always contain the latest packages
+      cache: false
+      # Only tag with latest when ran against the latest stable branch
+      # This needs to be updated after each minor version release
+      flavor: |
+        latest=${{ startsWith(github.ref, 'refs/tags/v4.3.') }}
+      tags: |
+        type=pep440,pattern={{raw}}
+        type=pep440,pattern=v{{major}}.{{minor}}
+    secrets: inherit

.github/workflows/test-image-build.yml

@@ -7,6 +7,7 @@ on:
       - .github/workflows/build-releases.yml
       - .github/workflows/test-image-build.yml
       - Dockerfile
+      - streaming/Dockerfile
 permissions:
   contents: read
 
@@ -18,4 +19,17 @@ jobs:
 
     uses: ./.github/workflows/build-container-image.yml
     with:
+      file_to_build: Dockerfile
       platforms: linux/amd64 # Testing only on native platform so it is performant
+      cache: true
+
+  build-image-streaming:
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}-streaming
+      cancel-in-progress: true
+
+    uses: ./.github/workflows/build-container-image.yml
+    with:
+      file_to_build: streaming/Dockerfile
+      platforms: linux/amd64 # Testing only on native platform so it is performant
+      cache: true

.rubocop_todo.yml

@@ -309,7 +309,7 @@ Style/FetchEnvVar:
     - 'config/initializers/devise.rb'
     - 'config/initializers/paperclip.rb'
     - 'config/initializers/vapid.rb'
-    - 'lib/mastodon/premailer_webpack_strategy.rb'
+    - 'lib/premailer_webpack_strategy.rb'
     - 'lib/mastodon/redis_config.rb'
     - 'lib/tasks/repo.rake'
     - 'spec/features/profile_spec.rb'
@@ -359,8 +359,8 @@ Style/GuardClause:
     - 'config/initializers/devise.rb'
     - 'db/migrate/20170901141119_truncate_preview_cards.rb'
     - 'db/post_migrate/20220704024901_migrate_settings_to_user_roles.rb'
-    - 'lib/devise/two_factor_ldap_authenticatable.rb'
-    - 'lib/devise/two_factor_pam_authenticatable.rb'
+    - 'lib/devise/strategies/two_factor_ldap_authenticatable.rb'
+    - 'lib/devise/strategies/two_factor_pam_authenticatable.rb'
     - 'lib/mastodon/cli/accounts.rb'
     - 'lib/mastodon/cli/maintenance.rb'
     - 'lib/mastodon/cli/media.rb'
@@ -495,8 +495,8 @@ Style/SafeNavigation:
 # SupportedStyles: only_raise, only_fail, semantic
 Style/SignalException:
   Exclude:
-    - 'lib/devise/two_factor_ldap_authenticatable.rb'
-    - 'lib/devise/two_factor_pam_authenticatable.rb'
+    - 'lib/devise/strategies/two_factor_ldap_authenticatable.rb'
+    - 'lib/devise/strategies/two_factor_pam_authenticatable.rb'
 
 # This cop supports unsafe autocorrection (--autocorrect-all).
 Style/SingleArgumentDig:

Dockerfile

@@ -1,112 +1,257 @@
 # syntax=docker/dockerfile:1.4
-# This needs to be bookworm-slim because the Ruby image is built on bookworm-slim
-ARG NODE_VERSION="20.9-bookworm-slim"
 
-FROM ghcr.io/moritzheiber/ruby-jemalloc:3.2.2-slim as ruby
-FROM node:${NODE_VERSION} as build
+# Please see https://docs.docker.com/engine/reference/builder for information about
+# the extended buildx capabilities used in this file.
+# Make sure multiarch TARGETPLATFORM is available for interpolation
+# See: https://docs.docker.com/build/building/multi-platform/
+ARG TARGETPLATFORM=${TARGETPLATFORM}
+ARG BUILDPLATFORM=${BUILDPLATFORM}
 
-COPY --link --from=ruby /opt/ruby /opt/ruby
+# Ruby image to use for base image, change with [--build-arg RUBY_VERSION="3.2.2"]
+ARG RUBY_VERSION="3.2.2"
+# # Node version to use in base image, change with [--build-arg NODE_MAJOR_VERSION="20"]
+ARG NODE_MAJOR_VERSION="20"
+# Debian image to use for base image, change with [--build-arg DEBIAN_VERSION="bookworm"]
+ARG DEBIAN_VERSION="bookworm"
+# Node image to use for base image based on combined variables (ex: 20-bookworm-slim)
+FROM docker.io/node:${NODE_MAJOR_VERSION}-${DEBIAN_VERSION}-slim as node
+# Ruby image to use for base image based on combined variables (ex: 3.2.2-slim-bookworm)
+FROM docker.io/ruby:${RUBY_VERSION}-slim-${DEBIAN_VERSION} as ruby
 
-ENV DEBIAN_FRONTEND="noninteractive" \
-    PATH="${PATH}:/opt/ruby/bin"
+# Resulting version string is vX.X.X-MASTODON_VERSION_PRERELEASE+MASTODON_VERSION_METADATA
+# Example: v4.2.0-nightly.2023.11.09+something
+# Overwrite existance of 'alpha.0' in version.rb [--build-arg MASTODON_VERSION_PRERELEASE="nightly.2023.11.09"]
+ARG MASTODON_VERSION_PRERELEASE=""
+# Append build metadata or fork information to version.rb [--build-arg MASTODON_VERSION_METADATA="something"]
+ARG MASTODON_VERSION_METADATA=""
 
-SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+# Allow Ruby on Rails to serve static files
+# See: https://docs.joinmastodon.org/admin/config/#rails_serve_static_files
+ARG RAILS_SERVE_STATIC_FILES="true"
+# Allow to use YJIT compiler
+# See: https://github.com/ruby/ruby/blob/master/doc/yjit/yjit.md
+ARG RUBY_YJIT_ENABLE="1"
+# Timezone used by the Docker container and runtime, change with [--build-arg TZ=Europe/Berlin]
+ARG TZ="Etc/UTC"
+# Linux UID (user id) for the mastodon user, change with [--build-arg UID=1234]
+ARG UID="991"
+# Linux GID (group id) for the mastodon user, change with [--build-arg GID=1234]
+ARG GID="991"
 
+# Apply Mastodon build options based on options above
+ENV \
+# Apply Mastodon version information
+  MASTODON_VERSION_PRERELEASE="${MASTODON_VERSION_PRERELEASE}" \
+  MASTODON_VERSION_METADATA="${MASTODON_VERSION_METADATA}" \
+# Apply Mastodon static files and YJIT options
+  RAILS_SERVE_STATIC_FILES=${RAILS_SERVE_STATIC_FILES} \
+  RUBY_YJIT_ENABLE=${RUBY_YJIT_ENABLE} \
+# Apply timezone
+  TZ=${TZ}
+
+ENV \
+# Configure the IP to bind Mastodon to when serving traffic
+  BIND="0.0.0.0" \
+# Use production settings for Yarn, Node and related nodejs based tools
+  NODE_ENV="production" \
+# Use production settings for Ruby on Rails
+  RAILS_ENV="production" \
+# Add Ruby and Mastodon installation to the PATH
+  DEBIAN_FRONTEND="noninteractive" \
+  PATH="${PATH}:/opt/ruby/bin:/opt/mastodon/bin" \
+# Optimize jemalloc 5.x performance
+  MALLOC_CONF="narenas:2,background_thread:true,thp:never,dirty_decay_ms:1000,muzzy_decay_ms:0"
+
+# Set default shell used for running commands
+SHELL ["/bin/bash", "-o", "pipefail", "-o", "errexit", "-c"]
+
+ARG TARGETPLATFORM
+
+RUN echo "Target platform is $TARGETPLATFORM"
+
+RUN \
+# Remove automatic apt cache Docker cleanup scripts
+  rm -f /etc/apt/apt.conf.d/docker-clean; \
+# Sets timezone
+  echo "${TZ}" > /etc/localtime; \
+# Creates mastodon user/group and sets home directory
+  groupadd -g "${GID}" mastodon; \
+  useradd -l -u "${UID}" -g "${GID}" -m -d /opt/mastodon mastodon; \
+# Creates /mastodon symlink to /opt/mastodon
+  ln -s /opt/mastodon /mastodon;
+
+# Set /opt/mastodon as working directory
 WORKDIR /opt/mastodon
 
+# hadolint ignore=DL3008,DL3005
+RUN \
+# Mount Apt cache and lib directories from Docker buildx caches
+--mount=type=cache,id=apt-cache-${TARGETPLATFORM},target=/var/cache/apt,sharing=locked \
+--mount=type=cache,id=apt-lib-${TARGETPLATFORM},target=/var/lib/apt,sharing=locked \
+# Apt update & upgrade to check for security updates to Debian image
+  apt-get update; \
+  apt-get dist-upgrade -yq; \
+# Install jemalloc, curl and other necessary components
+  apt-get install -y --no-install-recommends \
+    ca-certificates \
+    curl \
+    ffmpeg \
+    file \
+    imagemagick \
+    libjemalloc2 \
+    patchelf \
+    procps \
+    tini \
+    tzdata \
+  ; \
+# Patch Ruby to use jemalloc
+  patchelf --add-needed libjemalloc.so.2 /usr/local/bin/ruby; \
+# Discard patchelf after use
+  apt-get purge -y \
+    patchelf \
+  ;
+
+# Create temporary build layer from base image
+FROM ruby as build
+
+# Copy Node package configuration files into working directory
+COPY package.json yarn.lock .yarnrc.yml /opt/mastodon/
+COPY .yarn /opt/mastodon/.yarn
+
+COPY --from=node /usr/local/bin /usr/local/bin
+COPY --from=node /usr/local/lib /usr/local/lib
+
+ARG TARGETPLATFORM
+
 # hadolint ignore=DL3008
-RUN apt-get update && \
-    apt-get -yq dist-upgrade && \
-    apt-get install -y --no-install-recommends build-essential \
+RUN \
+# Mount Apt cache and lib directories from Docker buildx caches
+--mount=type=cache,id=apt-cache-${TARGETPLATFORM},target=/var/cache/apt,sharing=locked \
+--mount=type=cache,id=apt-lib-${TARGETPLATFORM},target=/var/lib/apt,sharing=locked \
+# Install build tools and bundler dependencies from APT
+  apt-get install -y --no-install-recommends \
+    g++ \
+    gcc \
     git \
+    libgdbm-dev \
+    libgmp-dev \
     libicu-dev \
     libidn-dev \
     libpq-dev \
-        libjemalloc-dev \
-        zlib1g-dev \
-        libgdbm-dev \
-        libgmp-dev \
     libssl-dev \
-        libyaml-dev \
-        ca-certificates \
-        libreadline8 \
-        python3 \
-        shared-mime-info && \
-    bundle config set --local deployment 'true' && \
-    bundle config set --local without 'development test' && \
-    bundle config set silence_root_warning true && \
-    corepack enable
+    make \
+    shared-mime-info \
+    zlib1g-dev \
+  ;
 
-COPY Gemfile* package.json yarn.lock .yarnrc.yml /opt/mastodon/
+RUN \
+# Configure Corepack
+  rm /usr/local/bin/yarn*; \
+  corepack enable; \
+  corepack prepare --activate;
+
+# Create temporary bundler specific build layer from build layer
+FROM build as bundler
+
+ARG TARGETPLATFORM
+
+# Copy Gemfile config into working directory
+COPY Gemfile* /opt/mastodon/
+
+RUN \
+# Mount Ruby Gem caches
+--mount=type=cache,id=gem-cache-${TARGETPLATFORM},target=/usr/local/bundle/cache/,sharing=locked \
+# Configure bundle to prevent changes to Gemfile and Gemfile.lock
+  bundle config set --global frozen "true"; \
+# Configure bundle to not cache downloaded Gems
+  bundle config set --global cache_all "false"; \
+# Configure bundle to only process production Gems
+  bundle config set --local without "development test"; \
+# Configure bundle to not warn about root user
+  bundle config set silence_root_warning "true"; \
+# Download and install required Gems
+  bundle install -j"$(nproc)";
+
+# Create temporary node specific build layer from build layer
+FROM build as yarn
+
+ARG TARGETPLATFORM
+
+# Copy Node package configuration files into working directory
+COPY package.json yarn.lock .yarnrc.yml /opt/mastodon/
 COPY streaming/package.json /opt/mastodon/streaming/
 COPY .yarn /opt/mastodon/.yarn
 
-RUN bundle install -j"$(nproc)"
+# hadolint ignore=DL3008
+RUN \
+--mount=type=cache,id=corepack-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/corepack,sharing=locked \
+--mount=type=cache,id=yarn-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/yarn,sharing=locked \
+# Install Node packages
+  yarn workspaces focus --production @mastodon/mastodon;
 
-RUN yarn workspaces focus --all --production && \
-    yarn cache clean
+# Create temporary assets build layer from build layer
+FROM build as precompiler
 
-FROM node:${NODE_VERSION}
+# Copy Mastodon sources into precompiler layer
+COPY . /opt/mastodon/
 
-# Use those args to specify your own version flags & suffixes
-ARG MASTODON_VERSION_PRERELEASE=""
-ARG MASTODON_VERSION_METADATA=""
+# Copy bundler and node packages from build layer to container
+COPY --from=yarn /opt/mastodon /opt/mastodon/
+COPY --from=bundler /opt/mastodon /opt/mastodon/
+COPY --from=bundler /usr/local/bundle/ /usr/local/bundle/
 
-ARG UID="991"
-ARG GID="991"
+ARG TARGETPLATFORM
 
-COPY --link --from=ruby /opt/ruby /opt/ruby
+RUN \
+# Use Ruby on Rails to create Mastodon assets
+  OTP_SECRET=precompile_placeholder SECRET_KEY_BASE=precompile_placeholder bundle exec rails assets:precompile; \
+# Cleanup temporary files
+  rm -fr /opt/mastodon/tmp;
 
-SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+# Prep final Mastodon Ruby layer
+FROM ruby as mastodon
 
-ENV DEBIAN_FRONTEND="noninteractive" \
-    PATH="${PATH}:/opt/ruby/bin:/opt/mastodon/bin"
+ARG TARGETPLATFORM
 
-# Ignoring these here since we don't want to pin any versions and the Debian image removes apt-get content after use
-# hadolint ignore=DL3008,DL3009
-RUN apt-get update && \
-    echo "Etc/UTC" > /etc/localtime && \
-    groupadd -g "${GID}" mastodon && \
-    useradd -l -u "$UID" -g "${GID}" -m -d /opt/mastodon mastodon && \
-    apt-get -y --no-install-recommends install whois \
-        wget \
-        procps \
+# hadolint ignore=DL3008
+RUN \
+# Mount Apt cache and lib directories from Docker buildx caches
+--mount=type=cache,id=apt-cache-${TARGETPLATFORM},target=/var/cache/apt,sharing=locked \
+--mount=type=cache,id=apt-lib-${TARGETPLATFORM},target=/var/lib/apt,sharing=locked \
+# Mount Corepack and Yarn caches from Docker buildx caches
+--mount=type=cache,id=corepack-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/corepack,sharing=locked \
+--mount=type=cache,id=yarn-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/yarn,sharing=locked \
+# Apt update install non-dev versions of necessary components
+  apt-get install -y --no-install-recommends \
     libssl3 \
     libpq5 \
-        imagemagick \
-        ffmpeg \
-        libjemalloc2 \
     libicu72 \
     libidn12 \
-        libyaml-0-2 \
-        file \
-        ca-certificates \
-        tzdata \
     libreadline8 \
-        tini && \
-    ln -s /opt/mastodon /mastodon && \
-    corepack enable
+    libyaml-0-2 \
+  ;
 
-# Note: no, cleaning here since Debian does this automatically
-# See the file /etc/apt/apt.conf.d/docker-clean within the Docker image's filesystem
+# Copy Mastodon sources into final layer
+COPY . /opt/mastodon/
 
-COPY --chown=mastodon:mastodon . /opt/mastodon
-COPY --chown=mastodon:mastodon --from=build /opt/mastodon /opt/mastodon
+# Copy compiled assets to layer
+COPY --from=precompiler /opt/mastodon/public/packs /opt/mastodon/public/packs
+COPY --from=precompiler /opt/mastodon/public/assets /opt/mastodon/public/assets
+# Copy bundler components to layer
+COPY --from=bundler /usr/local/bundle/ /usr/local/bundle/
 
-ENV RAILS_ENV="production" \
-    NODE_ENV="production" \
-    RAILS_SERVE_STATIC_FILES="true" \
-    BIND="0.0.0.0" \
-    MASTODON_VERSION_PRERELEASE="${MASTODON_VERSION_PRERELEASE}" \
-    MASTODON_VERSION_METADATA="${MASTODON_VERSION_METADATA}"
+RUN \
+# Precompile bootsnap code for faster Rails startup
+  bundle exec bootsnap precompile --gemfile app/ lib/;
 
-# Set the run user
+RUN \
+# Pre-create and chown system volume to Mastodon user
+  mkdir -p /opt/mastodon/public/system; \
+  chown mastodon:mastodon /opt/mastodon/public/system;
+
+# Set the running user for resulting container
 USER mastodon
-WORKDIR /opt/mastodon
-
-# Precompile assets
-RUN OTP_SECRET=precompile_placeholder SECRET_KEY_BASE=precompile_placeholder rails assets:precompile
-
-# Set the work dir and the container entry point
+# Expose default Puma ports
+EXPOSE 3000
+# Set container tini as default entry point
 ENTRYPOINT ["/usr/bin/tini", "--"]
-EXPOSE 3000 4000

Gemfile.lock

@@ -156,7 +156,7 @@ GEM
       nokogiri (~> 1, >= 1.10.8)
     base64 (0.2.0)
     bcp47_spec (0.2.1)
-    bcrypt (3.1.19)
+    bcrypt (3.1.20)
     better_errors (2.10.1)
       erubi (>= 1.0.0)
       rack (>= 0.9.0)
@@ -522,7 +522,7 @@ GEM
     pastel (0.8.0)
       tty-color (~> 0.5)
     pg (1.5.4)
-    pghero (3.3.4)
+    pghero (3.4.0)
       activerecord (>= 6)
     posix-spawn (0.3.15)
     premailer (1.21.0)
@@ -755,7 +755,7 @@ GEM
       attr_required (>= 0.0.5)
       httpclient (>= 2.4)
     sysexits (1.2.0)
-    temple (0.10.2)
+    temple (0.10.3)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     terrapin (0.6.0)

Vagrantfile

@@ -10,7 +10,11 @@ curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
 sudo apt-add-repository 'deb https://dl.yarnpkg.com/debian/ stable main'
 
 # Add repo for NodeJS
-curl -sL https://deb.nodesource.com/setup_16.x | sudo bash -
+sudo mkdir -p /etc/apt/keyrings
+curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | sudo gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
+NODE_MAJOR=20
+echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | sudo tee /etc/apt/sources.list.d/nodesource.list
+sudo apt-get update
 
 # Add firewall rule to redirect 80 to PORT and save
 sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port #{ENV["PORT"]}

app/controllers/accounts_controller.rb

@@ -50,7 +50,7 @@ class AccountsController < ApplicationController
   end
 
   def only_media_scope
-    Status.joins(:media_attachments).merge(@account.media_attachments.reorder(nil)).group(:id)
+    Status.joins(:media_attachments).merge(@account.media_attachments).group(:id)
   end
 
   def no_replies_scope

app/controllers/admin/account_moderation_notes_controller.rb

@@ -16,7 +16,7 @@ module Admin
         @moderation_notes = @account.targeted_moderation_notes.latest
         @warnings         = @account.strikes.custom.latest
 
-        render template: 'admin/accounts/show'
+        render 'admin/accounts/show'
       end
     end
 

app/controllers/admin/action_logs_controller.rb

@@ -6,7 +6,7 @@ module Admin
 
     def index
       authorize :audit_log, :index?
-      @auditable_accounts = Account.where(id: Admin::ActionLog.reorder(nil).select('distinct account_id')).select(:id, :username)
+      @auditable_accounts = Account.where(id: Admin::ActionLog.select('distinct account_id')).select(:id, :username)
     end
 
     private

app/controllers/admin/relays_controller.rb

@@ -24,7 +24,7 @@ module Admin
         @relay.enable!
         redirect_to admin_relays_path
       else
-        render action: :new
+        render :new
       end
     end
 

app/controllers/admin/report_notes_controller.rb

@@ -26,7 +26,7 @@ module Admin
         @form         = Admin::StatusBatchAction.new
         @statuses     = @report.statuses.with_includes
 
-        render template: 'admin/reports/show'
+        render 'admin/reports/show'
       end
     end
 

app/controllers/concerns/challengable_concern.rb

@@ -43,7 +43,7 @@ module ChallengableConcern
 
   def render_challenge
     @body_classes = 'lighter'
-    render template: 'auth/challenges/new', layout: 'auth'
+    render 'auth/challenges/new', layout: 'auth'
   end
 
   def challenge_passed?

app/controllers/disputes/appeals_controller.rb

@@ -11,7 +11,7 @@ class Disputes::AppealsController < Disputes::BaseController
     redirect_to disputes_strike_path(@strike), notice: I18n.t('disputes.strikes.appealed_msg')
   rescue ActiveRecord::RecordInvalid => e
     @appeal = e.record
-    render template: 'disputes/strikes/show'
+    render 'disputes/strikes/show'
   end
 
   private

app/controllers/filters_controller.rb

@@ -26,7 +26,7 @@ class FiltersController < ApplicationController
     if @filter.save
       redirect_to filters_path
     else
-      render action: :new
+      render :new
     end
   end
 
@@ -34,7 +34,7 @@ class FiltersController < ApplicationController
     if @filter.update(resource_params)
       redirect_to filters_path
     else
-      render action: :edit
+      render :edit
     end
   end
 

app/controllers/statuses_cleanup_controller.rb

@@ -15,7 +15,7 @@ class StatusesCleanupController < ApplicationController
     if @policy.update(resource_params)
       redirect_to statuses_cleanup_path, notice: I18n.t('generic.changes_saved_msg')
     else
-      render action: :show
+      render :show
     end
   rescue ActionController::ParameterMissing
     # Do nothing

app/helpers/admin/account_actions_helper.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+module Admin::AccountActionsHelper
+  def account_action_type_label(type)
+    safe_join(
+      [
+        I18n.t("simple_form.labels.admin_account_action.types.#{type}"),
+        content_tag(:span, I18n.t("simple_form.hints.admin_account_action.types.#{type}"), class: 'hint'),
+      ]
+    )
+  end
+end

app/helpers/admin/accounts_helper.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Admin::AccountsHelper
+  def admin_accounts_moderation_options
+    [
+      [t('admin.accounts.moderation.active'), 'active'],
+      [t('admin.accounts.moderation.silenced'), 'silenced'],
+      [t('admin.accounts.moderation.disabled'), 'disabled'],
+      [t('admin.accounts.moderation.suspended'), 'suspended'],
+      [safe_join([t('admin.accounts.moderation.pending'), "(#{pending_user_count_label})"], ' '), 'pending'],
+    ]
+  end
+
+  private
+
+  def pending_user_count_label
+    number_with_delimiter User.pending.count
+  end
+end

app/helpers/admin/ip_blocks_helper.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+module Admin::IpBlocksHelper
+  def ip_blocks_severity_label(severity)
+    safe_join(
+      [
+        I18n.t("simple_form.labels.ip_block.severities.#{severity}"),
+        content_tag(:span, I18n.t("simple_form.hints.ip_block.severities.#{severity}"), class: 'hint'),
+      ]
+    )
+  end
+end

app/helpers/admin/roles_helper.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+module Admin
+  module RolesHelper
+    def privilege_label(privilege)
+      safe_join(
+        [
+          t("admin.roles.privileges.#{privilege}"),
+          content_tag(:span, t("admin.roles.privileges.#{privilege}_description"), class: 'hint'),
+        ]
+      )
+    end
+
+    def disable_permissions?(permissions)
+      permissions.filter { |privilege| role_flag_value(privilege).zero? }
+    end
+
+    private
+
+    def role_flag_value(privilege)
+      UserRole::FLAGS[privilege] & current_user.role.computed_permissions
+    end
+  end
+end

app/helpers/admin/settings/discovery_helper.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module Admin::Settings::DiscoveryHelper
+  def discovery_warning_hint_text
+    authorized_fetch_overridden? ? t('admin.settings.security.authorized_fetch_overridden_hint') : nil
+  end
+
+  def discovery_hint_text
+    t('admin.settings.security.authorized_fetch_hint')
+  end
+
+  def discovery_recommended_value
+    authorized_fetch_overridden? ? :overridden : nil
+  end
+end

app/helpers/filters_helper.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+module FiltersHelper
+  def filter_action_label(action)
+    safe_join(
+      [
+        t("simple_form.labels.filters.actions.#{action}"),
+        content_tag(:span, t("simple_form.hints.filters.actions.#{action}"), class: 'hint'),
+      ]
+    )
+  end
+end

app/javascript/mastodon/components/admin/Trends.jsx

@@ -6,7 +6,7 @@ import { FormattedMessage } from 'react-intl';
 import classNames from 'classnames';
 
 import api from 'mastodon/api';
-import Hashtag from 'mastodon/components/hashtag';
+import { Hashtag } from 'mastodon/components/hashtag';
 
 export default class Trends extends PureComponent {
 

app/javascript/mastodon/components/dismissable_banner.tsx

@@ -1,11 +1,18 @@
+/* eslint-disable @typescript-eslint/no-unsafe-call,
+                  @typescript-eslint/no-unsafe-return,
+                  @typescript-eslint/no-unsafe-assignment,
+                  @typescript-eslint/no-unsafe-member-access
+                  -- the settings store is not yet typed */
 import type { PropsWithChildren } from 'react';
-import { useCallback, useState } from 'react';
+import { useCallback, useState, useEffect } from 'react';
 
 import { defineMessages, useIntl } from 'react-intl';
 
 import { ReactComponent as CloseIcon } from '@material-symbols/svg-600/outlined/close.svg';
 
+import { changeSetting } from 'mastodon/actions/settings';
 import { bannerSettings } from 'mastodon/settings';
+import { useAppSelector, useAppDispatch } from 'mastodon/store';
 
 import { IconButton } from './icon_button';
 
@@ -21,13 +28,25 @@ export const DismissableBanner: React.FC<PropsWithChildren<Props>> = ({
   id,
   children,
 }) => {
-  const [visible, setVisible] = useState(!bannerSettings.get(id));
+  const dismissed = useAppSelector((state) =>
+    state.settings.getIn(['dismissed_banners', id], false),
+  );
+  const dispatch = useAppDispatch();
+
+  const [visible, setVisible] = useState(!bannerSettings.get(id) && !dismissed);
   const intl = useIntl();
 
   const handleDismiss = useCallback(() => {
     setVisible(false);
     bannerSettings.set(id, true);
-  }, [id]);
+    dispatch(changeSetting(['dismissed_banners', id], true));
+  }, [id, dispatch]);
+
+  useEffect(() => {
+    if (!visible && !dismissed) {
+      dispatch(changeSetting(['dismissed_banners', id], true));
+    }
+  }, [id, dispatch, visible, dismissed]);
 
   if (!visible) {
     return null;

app/javascript/mastodon/components/hashtag.jsx

@@ -1,120 +0,0 @@
-// @ts-check
-import PropTypes from 'prop-types';
-import { Component } from 'react';
-
-import { FormattedMessage } from 'react-intl';
-
-import classNames from 'classnames';
-import { Link } from 'react-router-dom';
-
-import ImmutablePropTypes from 'react-immutable-proptypes';
-
-import { Sparklines, SparklinesCurve } from 'react-sparklines';
-
-import { ShortNumber } from 'mastodon/components/short_number';
-import { Skeleton } from 'mastodon/components/skeleton';
-
-class SilentErrorBoundary extends Component {
-
-  static propTypes = {
-    children: PropTypes.node,
-  };
-
-  state = {
-    error: false,
-  };
-
-  componentDidCatch() {
-    this.setState({ error: true });
-  }
-
-  render() {
-    if (this.state.error) {
-      return null;
-    }
-
-    return this.props.children;
-  }
-
-}
-
-/**
- * Used to render counter of how much people are talking about hashtag
- * @type {(displayNumber: JSX.Element, pluralReady: number) => JSX.Element}
- */
-export const accountsCountRenderer = (displayNumber, pluralReady) => (
-  <FormattedMessage
-    id='trends.counter_by_accounts'
-    defaultMessage='{count, plural, one {{counter} person} other {{counter} people}} in the past {days, plural, one {day} other {# days}}'
-    values={{
-      count: pluralReady,
-      counter: <strong>{displayNumber}</strong>,
-      days: 2,
-    }}
-  />
-);
-
-// @ts-expect-error
-export const ImmutableHashtag = ({ hashtag }) => (
-  <Hashtag
-    name={hashtag.get('name')}
-    to={`/tags/${hashtag.get('name')}`}
-    people={hashtag.getIn(['history', 0, 'accounts']) * 1 + hashtag.getIn(['history', 1, 'accounts']) * 1}
-    // @ts-expect-error
-    history={hashtag.get('history').reverse().map((day) => day.get('uses')).toArray()}
-  />
-);
-
-ImmutableHashtag.propTypes = {
-  hashtag: ImmutablePropTypes.map.isRequired,
-};
-
-// @ts-expect-error
-const Hashtag = ({ name, to, people, uses, history, className, description, withGraph }) => (
-  <div className={classNames('trends__item', className)}>
-    <div className='trends__item__name'>
-      <Link to={to}>
-        {name ? <>#<span>{name}</span></> : <Skeleton width={50} />}
-      </Link>
-
-      {description ? (
-        <span>{description}</span>
-      ) : (
-        typeof people !== 'undefined' ? <ShortNumber value={people} renderer={accountsCountRenderer} /> : <Skeleton width={100} />
-      )}
-    </div>
-
-    {typeof uses !== 'undefined' && (
-      <div className='trends__item__current'>
-        <ShortNumber value={uses} />
-      </div>
-    )}
-
-    {withGraph && (
-      <div className='trends__item__sparkline'>
-        <SilentErrorBoundary>
-          <Sparklines width={50} height={28} data={history ? history : Array.from(Array(7)).map(() => 0)}>
-            <SparklinesCurve style={{ fill: 'none' }} />
-          </Sparklines>
-        </SilentErrorBoundary>
-      </div>
-    )}
-  </div>
-);
-
-Hashtag.propTypes = {
-  name: PropTypes.string,
-  to: PropTypes.string,
-  people: PropTypes.number,
-  description: PropTypes.node,
-  uses: PropTypes.number,
-  history: PropTypes.arrayOf(PropTypes.number),
-  className: PropTypes.string,
-  withGraph: PropTypes.bool,
-};
-
-Hashtag.defaultProps = {
-  withGraph: true,
-};
-
-export default Hashtag;

app/javascript/mastodon/components/hashtag.tsx

@@ -0,0 +1,145 @@
+import type { JSX } from 'react';
+import { Component } from 'react';
+
+import { FormattedMessage } from 'react-intl';
+
+import classNames from 'classnames';
+import { Link } from 'react-router-dom';
+
+import type Immutable from 'immutable';
+
+import { Sparklines, SparklinesCurve } from 'react-sparklines';
+
+import { ShortNumber } from 'mastodon/components/short_number';
+import { Skeleton } from 'mastodon/components/skeleton';
+
+interface SilentErrorBoundaryProps {
+  children: React.ReactNode;
+}
+
+class SilentErrorBoundary extends Component<SilentErrorBoundaryProps> {
+  state = {
+    error: false,
+  };
+
+  componentDidCatch() {
+    this.setState({ error: true });
+  }
+
+  render() {
+    if (this.state.error) {
+      return null;
+    }
+
+    return this.props.children;
+  }
+}
+
+/**
+ * Used to render counter of how much people are talking about hashtag
+ * @param displayNumber Counter number to display
+ * @param pluralReady Whether the count is plural
+ * @returns Formatted counter of how much people are talking about hashtag
+ */
+export const accountsCountRenderer = (
+  displayNumber: JSX.Element,
+  pluralReady: number,
+) => (
+  <FormattedMessage
+    id='trends.counter_by_accounts'
+    defaultMessage='{count, plural, one {{counter} person} other {{counter} people}} in the past {days, plural, one {day} other {# days}}'
+    values={{
+      count: pluralReady,
+      counter: <strong>{displayNumber}</strong>,
+      days: 2,
+    }}
+  />
+);
+
+interface ImmutableHashtagProps {
+  hashtag: Immutable.Map<string, unknown>;
+}
+
+export const ImmutableHashtag = ({ hashtag }: ImmutableHashtagProps) => (
+  <Hashtag
+    name={hashtag.get('name') as string}
+    to={`/tags/${hashtag.get('name') as string}`}
+    people={
+      (hashtag.getIn(['history', 0, 'accounts']) as number) * 1 +
+      (hashtag.getIn(['history', 1, 'accounts']) as number) * 1
+    }
+    history={(
+      hashtag.get('history') as Immutable.Collection.Indexed<
+        Immutable.Map<string, number>
+      >
+    )
+      .reverse()
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      .map((day) => day.get('uses')!)
+      .toArray()}
+  />
+);
+
+export interface HashtagProps {
+  className?: string;
+  description?: React.ReactNode;
+  history?: number[];
+  name: string;
+  people: number;
+  to: string;
+  uses?: number;
+  withGraph?: boolean;
+}
+
+export const Hashtag: React.FC<HashtagProps> = ({
+  name,
+  to,
+  people,
+  uses,
+  history,
+  className,
+  description,
+  withGraph = true,
+}) => (
+  <div className={classNames('trends__item', className)}>
+    <div className='trends__item__name'>
+      <Link to={to}>
+        {name ? (
+          <>
+            #<span>{name}</span>
+          </>
+        ) : (
+          <Skeleton width={50} />
+        )}
+      </Link>
+
+      {description ? (
+        <span>{description}</span>
+      ) : typeof people !== 'undefined' ? (
+        <ShortNumber value={people} renderer={accountsCountRenderer} />
+      ) : (
+        <Skeleton width={100} />
+      )}
+    </div>
+
+    {typeof uses !== 'undefined' && (
+      <div className='trends__item__current'>
+        <ShortNumber value={uses} />
+      </div>
+    )}
+
+    {withGraph && (
+      <div className='trends__item__sparkline'>
+        <SilentErrorBoundary>
+          <Sparklines
+            width={50}
+            height={28}
+            data={history ? history : Array.from(Array(7)).map(() => 0)}
+          >
+            <SparklinesCurve style={{ fill: 'none' }} />
+          </Sparklines>
+        </SilentErrorBoundary>
+      </div>
+    )}
+  </div>
+);

app/javascript/mastodon/features/account/components/featured_tags.jsx

@@ -5,7 +5,7 @@ import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 
-import Hashtag from 'mastodon/components/hashtag';
+import { Hashtag } from 'mastodon/components/hashtag';
 
 const messages = defineMessages({
   lastStatusAt: { id: 'account.featured_tags.last_status_at', defaultMessage: 'Last post on {date}' },

app/javascript/mastodon/features/followed_tags/index.jsx

@@ -13,7 +13,7 @@ import { debounce } from 'lodash';
 
 import { expandFollowedHashtags, fetchFollowedHashtags } from 'mastodon/actions/tags';
 import ColumnHeader from 'mastodon/components/column_header';
-import Hashtag from 'mastodon/components/hashtag';
+import { Hashtag } from 'mastodon/components/hashtag';
 import ScrollableList from 'mastodon/components/scrollable_list';
 import Column from 'mastodon/features/ui/components/column';
 

app/javascript/mastodon/reducers/settings.js

@@ -100,6 +100,15 @@ const initialState = ImmutableMap({
       body: '',
     }),
   }),
+
+  dismissed_banners: ImmutableMap({
+    'public_timeline': false,
+    'community_timeline': false,
+    'home.explore_prompt': false,
+    'explore/links': false,
+    'explore/statuses': false,
+    'explore/tags': false,
+  }),
 });
 
 const defaultColumns = fromJS([

app/javascript/mastodon/utils/config.js

@@ -1,10 +0,0 @@
-import ready from '../ready';
-
-export let assetHost = '';
-
-ready(() => {
-  const cdnHost = document.querySelector('meta[name=cdn-host]');
-  if (cdnHost) {
-    assetHost = cdnHost.content || '';
-  }
-});

app/javascript/mastodon/utils/config.ts

@@ -0,0 +1,13 @@
+import ready from '../ready';
+
+export let assetHost = '';
+
+// eslint-disable-next-line @typescript-eslint/no-floating-promises
+ready(() => {
+  const cdnHost = document.querySelector<HTMLMetaElement>(
+    'meta[name=cdn-host]',
+  );
+  if (cdnHost) {
+    assetHost = cdnHost.content || '';
+  }
+});

app/javascript/mastodon/utils/html.js

@@ -1,6 +0,0 @@
-// NB: This function can still return unsafe HTML
-export const unescapeHTML = (html) => {
-  const wrapper = document.createElement('div');
-  wrapper.innerHTML = html.replace(/<br\s*\/?>/g, '\n').replace(/<\/p><p>/g, '\n\n').replace(/<[^>]*>/g, '');
-  return wrapper.textContent;
-};

app/javascript/mastodon/utils/html.ts

@@ -0,0 +1,9 @@
+// NB: This function can still return unsafe HTML
+export const unescapeHTML = (html: string) => {
+  const wrapper = document.createElement('div');
+  wrapper.innerHTML = html
+    .replace(/<br\s*\/?>/g, '\n')
+    .replace(/<\/p><p>/g, '\n\n')
+    .replace(/<[^>]*>/g, '');
+  return wrapper.textContent;
+};

app/javascript/mastodon/utils/icons.tsx

@@ -1,13 +1,23 @@
 // Copied from emoji-mart for consistency with emoji picker and since
 // they don't export the icons in the package
 export const loupeIcon = (
-  <svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' width='13' height='13'>
+  <svg
+    xmlns='http://www.w3.org/2000/svg'
+    viewBox='0 0 20 20'
+    width='13'
+    height='13'
+  >
     <path d='M12.9 14.32a8 8 0 1 1 1.41-1.41l5.35 5.33-1.42 1.42-5.33-5.34zM8 14A6 6 0 1 0 8 2a6 6 0 0 0 0 12z' />
   </svg>
 );
 
 export const deleteIcon = (
-  <svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' width='13' height='13'>
+  <svg
+    xmlns='http://www.w3.org/2000/svg'
+    viewBox='0 0 20 20'
+    width='13'
+    height='13'
+  >
     <path d='M10 8.586L2.929 1.515 1.515 2.929 8.586 10l-7.071 7.071 1.414 1.414L10 11.414l7.071 7.071 1.414-1.414L11.414 10l7.071-7.071-1.414-1.414L10 8.586z' />
   </svg>
 );

app/javascript/mastodon/utils/notifications.js

@@ -1,30 +0,0 @@
-// Handles browser quirks, based on
-// https://developer.mozilla.org/en-US/docs/Web/API/Notifications_API/Using_the_Notifications_API
-
-const checkNotificationPromise = () => {
-  try {
-    // eslint-disable-next-line promise/valid-params, promise/catch-or-return
-    Notification.requestPermission().then();
-  } catch(e) {
-    return false;
-  }
-
-  return true;
-};
-
-const handlePermission = (permission, callback) => {
-  // Whatever the user answers, we make sure Chrome stores the information
-  if(!('permission' in Notification)) {
-    Notification.permission = permission;
-  }
-
-  callback(Notification.permission);
-};
-
-export const requestNotificationPermission = (callback) => {
-  if (checkNotificationPromise()) {
-    Notification.requestPermission().then((permission) => handlePermission(permission, callback)).catch(console.warn);
-  } else {
-    Notification.requestPermission((permission) => handlePermission(permission, callback));
-  }
-};

app/javascript/mastodon/utils/notifications.ts

@@ -0,0 +1,13 @@
+/**
+ * Tries Notification.requestPermission, console warning instead of rejecting on error.
+ * @param callback Runs with the permission result on completion.
+ */
+export const requestNotificationPermission = async (
+  callback: NotificationPermissionCallback,
+) => {
+  try {
+    callback(await Notification.requestPermission());
+  } catch (error) {
+    console.warn(error);
+  }
+};

app/javascript/mastodon/utils/react_router.tsx

@@ -1,8 +1,8 @@
-import PropTypes from "prop-types";
+import PropTypes from 'prop-types';
 
-import { __RouterContext } from "react-router";
+import { __RouterContext } from 'react-router';
 
-import hoistStatics from "hoist-non-react-statics";
+import hoistStatics from 'hoist-non-react-statics';
 
 export const WithRouterPropTypes = {
   match: PropTypes.object.isRequired,
@@ -16,31 +16,37 @@ export const WithOptionalRouterPropTypes = {
   history: PropTypes.object,
 };
 
+export interface OptionalRouterProps {
+  ref: unknown;
+  wrappedComponentRef: unknown;
+}
+
 // This is copied from https://github.com/remix-run/react-router/blob/v5.3.4/packages/react-router/modules/withRouter.js
 // but does not fail if called outside of a React Router context
-export function withOptionalRouter(Component) {
-  const displayName = `withRouter(${Component.displayName || Component.name})`;
-  const C = props => {
+export function withOptionalRouter<
+  ComponentType extends React.ComponentType<OptionalRouterProps>,
+>(Component: ComponentType) {
+  const displayName = `withRouter(${Component.displayName ?? Component.name})`;
+  const C = (props: React.ComponentProps<ComponentType>) => {
     const { wrappedComponentRef, ...remainingProps } = props;
 
     return (
       <__RouterContext.Consumer>
-        {context => {
-          if(context)
+        {(context) => {
+          // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+          if (context) {
             return (
+              // @ts-expect-error - Dynamic covariant generic components are tough to type.
               <Component
                 {...remainingProps}
                 {...context}
                 ref={wrappedComponentRef}
               />
             );
-          else
-            return (
-              <Component
-                {...remainingProps}
-                ref={wrappedComponentRef}
-              />
-            );
+          } else {
+            // @ts-expect-error - Dynamic covariant generic components are tough to type.
+            return <Component {...remainingProps} ref={wrappedComponentRef} />;
+          }
         }}
       </__RouterContext.Consumer>
     );
@@ -53,8 +59,8 @@ export function withOptionalRouter(Component) {
     wrappedComponentRef: PropTypes.oneOfType([
       PropTypes.string,
       PropTypes.func,
-      PropTypes.object
-    ])
+      PropTypes.object,
+    ]),
   };
 
   return hoistStatics(C, Component);

app/javascript/mastodon/utils/scrollbar.ts

@@ -1,11 +1,7 @@
 import { isMobile } from '../is_mobile';
 
-/** @type {number | null} */
-let cachedScrollbarWidth = null;
+let cachedScrollbarWidth: number | null = null;
 
-/**
- * @returns {number}
- */
 const getActualScrollbarWidth = () => {
   const outer = document.createElement('div');
   outer.style.visibility = 'hidden';
@@ -16,20 +12,19 @@ const getActualScrollbarWidth = () => {
   outer.appendChild(inner);
 
   const scrollbarWidth = outer.offsetWidth - inner.offsetWidth;
-  outer.parentNode.removeChild(outer);
+  outer.remove();
 
   return scrollbarWidth;
 };
 
-/**
- * @returns {number}
- */
 export const getScrollbarWidth = () => {
   if (cachedScrollbarWidth !== null) {
     return cachedScrollbarWidth;
   }
 
-  const scrollbarWidth = isMobile(window.innerWidth) ? 0 : getActualScrollbarWidth();
+  const scrollbarWidth = isMobile(window.innerWidth)
+    ? 0
+    : getActualScrollbarWidth();
   cachedScrollbarWidth = scrollbarWidth;
 
   return scrollbarWidth;

app/lib/account_statuses_filter.rb

@@ -70,7 +70,7 @@ class AccountStatusesFilter
   end
 
   def only_media_scope
-    Status.joins(:media_attachments).merge(account.media_attachments.reorder(nil)).group(Status.arel_table[:id])
+    Status.joins(:media_attachments).merge(account.media_attachments).group(Status.arel_table[:id])
   end
 
   def no_replies_scope

app/lib/content_security_policy.rb

@@ -9,8 +9,8 @@ class ContentSecurityPolicy
     url_from_configured_asset_host || url_from_base_host
   end
 
-  def media_host
-    cdn_host_value || assets_host
+  def media_hosts
+    [assets_host, cdn_host_value].compact
   end
 
   private

app/lib/vacuum/media_attachments_vacuum.rb

@@ -27,11 +27,11 @@ class Vacuum::MediaAttachmentsVacuum
   end
 
   def media_attachments_past_retention_period
-    MediaAttachment.unscoped.remote.cached.where(MediaAttachment.arel_table[:created_at].lt(@retention_period.ago)).where(MediaAttachment.arel_table[:updated_at].lt(@retention_period.ago))
+    MediaAttachment.remote.cached.where(MediaAttachment.arel_table[:created_at].lt(@retention_period.ago)).where(MediaAttachment.arel_table[:updated_at].lt(@retention_period.ago))
   end
 
   def orphaned_media_attachments
-    MediaAttachment.unscoped.unattached.where(MediaAttachment.arel_table[:created_at].lt(TTL.ago))
+    MediaAttachment.unattached.where(MediaAttachment.arel_table[:created_at].lt(TTL.ago))
   end
 
   def retention_period?

app/models/admin/action_log.rb

@@ -24,12 +24,12 @@ class Admin::ActionLog < ApplicationRecord
   belongs_to :account
   belongs_to :target, polymorphic: true, optional: true
 
-  default_scope -> { order('id desc') }
-
   before_validation :set_human_identifier
   before_validation :set_route_param
   before_validation :set_permalink
 
+  scope :latest, -> { order(id: :desc) }
+
   def action
     super.to_sym
   end

app/models/admin/action_log_filter.rb

@@ -72,7 +72,7 @@ class Admin::ActionLogFilter
   end
 
   def results
-    scope = Admin::ActionLog.includes(:target)
+    scope = latest_action_logs.includes(:target)
 
     params.each do |key, value|
       next if key.to_s == 'page'
@@ -88,14 +88,18 @@ class Admin::ActionLogFilter
   def scope_for(key, value)
     case key
     when 'action_type'
-      Admin::ActionLog.where(ACTION_TYPE_MAP[value.to_sym])
+      latest_action_logs.where(ACTION_TYPE_MAP[value.to_sym])
     when 'account_id'
-      Admin::ActionLog.where(account_id: value)
+      latest_action_logs.where(account_id: value)
     when 'target_account_id'
       account = Account.find_or_initialize_by(id: value)
-      Admin::ActionLog.where(target: [account, account.user].compact)
+      latest_action_logs.where(target: [account, account.user].compact)
     else
       raise Mastodon::InvalidParameterError, "Unknown filter: #{key}"
     end
   end
+
+  def latest_action_logs
+    Admin::ActionLog.latest
+  end
 end

app/models/admin/status_filter.rb

@@ -32,7 +32,7 @@ class Admin::StatusFilter
   def scope_for(key, _value)
     case key.to_s
     when 'media'
-      Status.joins(:media_attachments).merge(@account.media_attachments.reorder(nil)).group(:id).reorder('statuses.id desc')
+      Status.joins(:media_attachments).merge(@account.media_attachments).group(:id).reorder('statuses.id desc')
     else
       raise Mastodon::InvalidParameterError, "Unknown filter: #{key}"
     end

app/models/media_attachment.rb

@@ -205,12 +205,11 @@ class MediaAttachment < ApplicationRecord
   validates :thumbnail, absence: true, if: -> { local? && !audio_or_video? }
 
   scope :attached,   -> { where.not(status_id: nil).or(where.not(scheduled_status_id: nil)) }
-  scope :unattached, -> { where(status_id: nil, scheduled_status_id: nil) }
-  scope :local,      -> { where(remote_url: '') }
-  scope :remote,     -> { where.not(remote_url: '') }
   scope :cached,     -> { remote.where.not(file_file_name: nil) }
-
-  default_scope { order(id: :asc) }
+  scope :local,      -> { where(remote_url: '') }
+  scope :ordered,    -> { order(id: :asc) }
+  scope :remote,     -> { where.not(remote_url: '') }
+  scope :unattached, -> { where(status_id: nil, scheduled_status_id: nil) }
 
   attr_accessor :skip_download
 

app/models/report.rb

@@ -131,25 +131,25 @@ class Report < ApplicationRecord
       Admin::ActionLog.where(
         target_type: 'Report',
         target_id: id
-      ).unscope(:order).arel,
+      ).arel,
 
       Admin::ActionLog.where(
         target_type: 'Account',
         target_id: target_account_id
-      ).unscope(:order).arel,
+      ).arel,
 
       Admin::ActionLog.where(
         target_type: 'Status',
         target_id: status_ids
-      ).unscope(:order).arel,
+      ).arel,
 
       Admin::ActionLog.where(
         target_type: 'AccountWarning',
         target_id: AccountWarning.where(report_id: id).select(:id)
-      ).unscope(:order).arel,
+      ).arel,
     ].reduce { |union, query| Arel::Nodes::UnionAll.new(union, query) }
 
-    Admin::ActionLog.from(Arel::Nodes::As.new(subquery, Admin::ActionLog.arel_table))
+    Admin::ActionLog.latest.from(Arel::Nodes::As.new(subquery, Admin::ActionLog.arel_table))
   end
 
   private

app/models/user_role.rb

@@ -49,7 +49,7 @@ class UserRole < ApplicationRecord
         invite_users
       ).freeze,
 
-      moderation: %w(
+      moderation: %i(
         view_dashboard
         view_audit_log
         manage_users
@@ -63,7 +63,7 @@ class UserRole < ApplicationRecord
         manage_invites
       ).freeze,
 
-      administration: %w(
+      administration: %i(
         manage_settings
         manage_rules
         manage_roles
@@ -72,7 +72,7 @@ class UserRole < ApplicationRecord
         manage_announcements
       ).freeze,
 
-      devops: %w(
+      devops: %i(
         view_devops
       ).freeze,
 

app/serializers/rest/application_serializer.rb

@@ -2,7 +2,10 @@
 
 class REST::ApplicationSerializer < ActiveModel::Serializer
   attributes :id, :name, :website, :scopes, :redirect_uri,
-             :client_id, :client_secret, :vapid_key
+             :client_id, :client_secret
+
+  # NOTE: Deprecated in 4.3.0, needs to be removed in 5.0.0
+  attribute :vapid_key
 
   def id
     object.id.to_s

app/serializers/rest/instance_serializer.rb

@@ -48,6 +48,10 @@ class REST::InstanceSerializer < ActiveModel::Serializer
         status: object.status_page_url,
       },
 
+      vapid: {
+        public_key: Rails.configuration.x.vapid_public_key,
+      },
+
       accounts: {
         max_featured_tags: FeaturedTag::LIMIT,
       },

app/services/backup_service.rb

@@ -72,7 +72,7 @@ class BackupService < BaseService
   end
 
   def dump_media_attachments!(zipfile)
-    MediaAttachment.attached.where(account: account).reorder(nil).find_in_batches do |media_attachments|
+    MediaAttachment.attached.where(account: account).find_in_batches do |media_attachments|
       media_attachments.each do |m|
         path = m.file&.path
         next unless path

app/services/clear_domain_media_service.rb

@@ -43,7 +43,7 @@ class ClearDomainMediaService < BaseService
   end
 
   def media_from_blocked_domain
-    MediaAttachment.joins(:account).merge(blocked_domain_accounts).reorder(nil)
+    MediaAttachment.joins(:account).merge(blocked_domain_accounts)
   end
 
   def emojis_from_blocked_domains

app/services/delete_account_service.rb

@@ -165,7 +165,7 @@ class DeleteAccountService < BaseService
   end
 
   def purge_media_attachments!
-    @account.media_attachments.reorder(nil).find_each do |media_attachment|
+    @account.media_attachments.find_each do |media_attachment|
       next if keep_account_record? && reported_status_ids.include?(media_attachment.status_id)
 
       media_attachment.destroy

app/services/resolve_account_service.rb

@@ -100,7 +100,9 @@ class ResolveAccountService < BaseService
   end
 
   def split_acct(acct)
-    acct.delete_prefix('acct:').split('@')
+    acct.delete_prefix('acct:').split('@').tap do |parts|
+      raise Webfinger::Error, 'Webfinger response is missing user or host value' unless parts.size == 2
+    end
   end
 
   def fetch_account!

app/services/suspend_account_service.rb

@@ -65,7 +65,7 @@ class SuspendAccountService < BaseService
   def privatize_media_attachments!
     attachment_names = MediaAttachment.attachment_definitions.keys
 
-    @account.media_attachments.reorder(nil).find_each do |media_attachment|
+    @account.media_attachments.find_each do |media_attachment|
       attachment_names.each do |attachment_name|
         attachment = media_attachment.public_send(attachment_name)
         styles     = MediaAttachment::DEFAULT_STYLES | attachment.styles.keys

app/services/unsuspend_account_service.rb

@@ -61,7 +61,7 @@ class UnsuspendAccountService < BaseService
   def publish_media_attachments!
     attachment_names = MediaAttachment.attachment_definitions.keys
 
-    @account.media_attachments.reorder(nil).find_each do |media_attachment|
+    @account.media_attachments.find_each do |media_attachment|
       attachment_names.each do |attachment_name|
         attachment = media_attachment.public_send(attachment_name)
         styles     = MediaAttachment::DEFAULT_STYLES | attachment.styles.keys

app/views/admin/account_actions/new.html.haml

@@ -5,7 +5,7 @@
   = f.input :report_id, as: :hidden
 
   .fields-group
-    = f.input :type, as: :radio_buttons, collection: Admin::AccountAction.types_for_account(@account), include_blank: false, wrapper: :with_block_label, label_method: ->(type) { safe_join([I18n.t("simple_form.labels.admin_account_action.types.#{type}"), content_tag(:span, I18n.t("simple_form.hints.admin_account_action.types.#{type}"), class: 'hint')]) }, hint: t('simple_form.hints.admin_account_action.type_html', acct: @account.pretty_acct)
+    = f.input :type, as: :radio_buttons, collection: Admin::AccountAction.types_for_account(@account), include_blank: false, wrapper: :with_block_label, label_method: ->(type) { account_action_type_label(type) }, hint: t('simple_form.hints.admin_account_action.type_html', acct: @account.pretty_acct)
 
   - if @account.local?
     %hr.spacer/

app/views/admin/accounts/index.html.haml

@@ -10,7 +10,7 @@
     .filter-subset.filter-subset--with-select
       %strong= t('admin.accounts.moderation.title')
       .input.select.optional
-        = select_tag :status, options_for_select([[t('admin.accounts.moderation.active'), 'active'], [t('admin.accounts.moderation.silenced'), 'silenced'], [t('admin.accounts.moderation.disabled'), 'disabled'], [t('admin.accounts.moderation.suspended'), 'suspended'], [safe_join([t('admin.accounts.moderation.pending'), "(#{number_with_delimiter(User.pending.count)})"], ' '), 'pending']], params[:status]), prompt: I18n.t('generic.all')
+        = select_tag :status, options_for_select(admin_accounts_moderation_options, params[:status]), prompt: I18n.t('generic.all')
     .filter-subset.filter-subset--with-select
       %strong= t('admin.accounts.role')
       .input.select.optional

app/views/admin/ip_blocks/new.html.haml

@@ -11,7 +11,7 @@
     = f.input :expires_in, wrapper: :with_block_label, collection: [1.day, 2.weeks, 1.month, 6.months, 1.year, 3.years].map(&:to_i), label_method: ->(i) { I18n.t("admin.ip_blocks.expires_in.#{i}") }, prompt: I18n.t('invites.expires_in_prompt')
 
   .fields-group
-    = f.input :severity, as: :radio_buttons, collection: IpBlock.severities.keys, include_blank: false, wrapper: :with_block_label, label_method: ->(severity) { safe_join([I18n.t("simple_form.labels.ip_block.severities.#{severity}"), content_tag(:span, I18n.t("simple_form.hints.ip_block.severities.#{severity}"), class: 'hint')]) }
+    = f.input :severity, as: :radio_buttons, collection: IpBlock.severities.keys, include_blank: false, wrapper: :with_block_label, label_method: ->(severity) { ip_blocks_severity_label(severity) }
 
   .fields-group
     = f.input :comment, as: :string, wrapper: :with_block_label

app/views/admin/roles/_form.html.haml

@@ -31,6 +31,6 @@
     - (form.object.everyone? ? UserRole::Flags::CATEGORIES.slice(:invites) : UserRole::Flags::CATEGORIES).each do |category, permissions|
       %h4= t(category, scope: 'admin.roles.categories')
 
-      = form.input :permissions_as_keys, collection: permissions, wrapper: :with_block_label, include_blank: false, label_method: ->(privilege) { safe_join([t("admin.roles.privileges.#{privilege}"), content_tag(:span, t("admin.roles.privileges.#{privilege}_description"), class: 'hint')]) }, required: false, as: :check_boxes, collection_wrapper_tag: 'ul', item_wrapper_tag: 'li', label: false, hint: false, disabled: permissions.filter { |privilege| UserRole::FLAGS[privilege] & current_user.role.computed_permissions == 0 }
+      = form.input :permissions_as_keys, collection: permissions, wrapper: :with_block_label, include_blank: false, label_method: ->(privilege) { privilege_label(privilege) }, required: false, as: :check_boxes, collection_wrapper_tag: 'ul', item_wrapper_tag: 'li', label: false, hint: false, disabled: disable_permissions?(permissions)
 
   %hr.spacer/

app/views/admin/settings/discovery/show.html.haml

@@ -45,7 +45,7 @@
   %h4= t('admin.settings.security.federation_authentication')
 
   .fields-group
-    = f.input :authorized_fetch, as: :boolean, wrapper: :with_label, label: t('admin.settings.security.authorized_fetch'), warning_hint: authorized_fetch_overridden? ? t('admin.settings.security.authorized_fetch_overridden_hint') : nil, hint: t('admin.settings.security.authorized_fetch_hint'), disabled: authorized_fetch_overridden?, recommended: authorized_fetch_overridden? ? :overridden : nil
+    = f.input :authorized_fetch, as: :boolean, wrapper: :with_label, label: t('admin.settings.security.authorized_fetch'), warning_hint: discovery_warning_hint_text, hint: discovery_hint_text, disabled: authorized_fetch_overridden?, recommended: discovery_recommended_value
 
   %h4= t('admin.settings.discovery.follow_recommendations')
 

app/views/filters/_filter_fields.html.haml

@@ -10,7 +10,7 @@
 %hr.spacer/
 
 .fields-group
-  = f.input :filter_action, as: :radio_buttons, collection: %i(warn hide), include_blank: false, wrapper: :with_block_label, label_method: ->(action) { safe_join([t("simple_form.labels.filters.actions.#{action}"), content_tag(:span, t("simple_form.hints.filters.actions.#{action}"), class: 'hint')]) }, hint: t('simple_form.hints.filters.action'), required: true
+  = f.input :filter_action, as: :radio_buttons, collection: %i(warn hide), include_blank: false, wrapper: :with_block_label, label_method: ->(action) { filter_action_label(action) }, hint: t('simple_form.hints.filters.action'), required: true
 
 %hr.spacer/
 

config/application.rb

@@ -39,8 +39,8 @@ require_relative '../lib/mastodon/snowflake'
 require_relative '../lib/mastodon/version'
 require_relative '../lib/mastodon/rack_middleware'
 require_relative '../lib/public_file_server_middleware'
-require_relative '../lib/devise/two_factor_ldap_authenticatable'
-require_relative '../lib/devise/two_factor_pam_authenticatable'
+require_relative '../lib/devise/strategies/two_factor_ldap_authenticatable'
+require_relative '../lib/devise/strategies/two_factor_pam_authenticatable'
 require_relative '../lib/chewy/settings_extensions'
 require_relative '../lib/chewy/index_extensions'
 require_relative '../lib/chewy/strategy/mastodon'

config/initializers/premailer_rails.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require_relative '../../lib/mastodon/premailer_webpack_strategy'
+require_relative '../../lib/premailer_webpack_strategy'
 
 Premailer::Rails.config.merge!(remove_ids: true,
                                adapter: :nokogiri,

lib/mastodon/cli/federation.rb

@@ -0,0 +1,74 @@
+# frozen_string_literal: true
+
+require 'tty-prompt'
+
+module Mastodon::CLI
+  module Federation
+    extend ActiveSupport::Concern
+
+    included do
+      desc 'self-destruct', 'Erase the server from the federation'
+      long_desc <<~LONG_DESC
+        Erase the server from the federation by broadcasting account delete
+        activities to all known other servers. This allows a "clean exit" from
+        running a Mastodon server, as it leaves next to no cache behind on
+        other servers.
+
+        This command is always interactive and requires confirmation twice.
+
+        No local data is actually deleted, because emptying the
+        database or removing files is much faster through other, external
+        means, such as e.g. deleting the entire VPS. However, because other
+        servers will delete data about local users, but no local data will be
+        updated (such as e.g. followers), there will be a state mismatch
+        that will lead to glitches and issues if you then continue to run and use
+        the server.
+
+        So either you know exactly what you are doing, or you are starting
+        from a blank slate afterwards by manually clearing out all the local
+        data!
+      LONG_DESC
+      def self_destruct
+        if SelfDestructHelper.self_destruct?
+          prompt.ok('Self-destruct mode is already enabled for this Mastodon server')
+
+          pending_accounts = Account.local.without_suspended.count + Account.local.suspended.joins(:deletion_request).count
+          sidekiq_stats = Sidekiq::Stats.new
+
+          if pending_accounts.positive?
+            prompt.warn("#{pending_accounts} accounts are still pending deletion.")
+          elsif sidekiq_stats.enqueued.positive?
+            prompt.warn('Deletion notices are still being processed')
+          elsif sidekiq_stats.retry_size.positive?
+            prompt.warn('At least one delivery attempt for each deletion notice has been made, but some have failed and are scheduled for retry')
+          else
+            prompt.ok('Every deletion notice has been sent! You can safely delete all data and decomission your servers!')
+          end
+
+          exit(0)
+        end
+
+        exit(1) unless prompt.ask('Type in the domain of the server to confirm:', required: true) == Rails.configuration.x.local_domain
+
+        prompt.warn('This operation WILL NOT be reversible.')
+        prompt.warn('While the data won\'t be erased locally, the server will be in a BROKEN STATE afterwards.')
+        prompt.warn('The deletion process itself may take a long time, and will be handled by Sidekiq, so do not shut it down until it has finished (you will be able to re-run this command to see the state of the self-destruct process).')
+
+        exit(1) if prompt.no?('Are you sure you want to proceed?')
+
+        self_destruct_value = Rails.application.message_verifier('self-destruct').generate(Rails.configuration.x.local_domain)
+        prompt.ok('To switch Mastodon to self-destruct mode, add the following variable to your evironment (e.g. by adding a line to your `.env.production`) and restart all Mastodon processes:')
+        prompt.ok("  SELF_DESTRUCT=#{self_destruct_value}")
+        prompt.ok("\nYou can re-run this command to see the state of the self-destruct process.")
+      rescue TTY::Reader::InputInterrupt
+        exit(1)
+      end
+
+      private
+
+      def prompt
+        @prompt ||= TTY::Prompt.new
+      end
+    end
+  end
+end

lib/mastodon/cli/main.rb

@@ -8,6 +8,7 @@ require_relative 'canonical_email_blocks'
 require_relative 'domains'
 require_relative 'email_domain_blocks'
 require_relative 'emoji'
+require_relative 'federation'
 require_relative 'feeds'
 require_relative 'ip_blocks'
 require_relative 'maintenance'
@@ -65,66 +66,7 @@ module Mastodon::CLI
     desc 'maintenance SUBCOMMAND ...ARGS', 'Various maintenance utilities'
     subcommand 'maintenance', Maintenance
 
-    desc 'self-destruct', 'Erase the server from the federation'
-    long_desc <<~LONG_DESC
-      Erase the server from the federation by broadcasting account delete
-      activities to all known other servers. This allows a "clean exit" from
-      running a Mastodon server, as it leaves next to no cache behind on
-      other servers.
-
-      This command is always interactive and requires confirmation twice.
-
-      No local data is actually deleted, because emptying the
-      database or removing files is much faster through other, external
-      means, such as e.g. deleting the entire VPS. However, because other
-      servers will delete data about local users, but no local data will be
-      updated (such as e.g. followers), there will be a state mismatch
-      that will lead to glitches and issues if you then continue to run and use
-      the server.
-
-      So either you know exactly what you are doing, or you are starting
-      from a blank slate afterwards by manually clearing out all the local
-      data!
-    LONG_DESC
-    def self_destruct
-      require 'tty-prompt'
-
-      prompt = TTY::Prompt.new
-
-      if SelfDestructHelper.self_destruct?
-        prompt.ok('Self-destruct mode is already enabled for this Mastodon server')
-
-        pending_accounts = Account.local.without_suspended.count + Account.local.suspended.joins(:deletion_request).count
-        sidekiq_stats = Sidekiq::Stats.new
-
-        if pending_accounts.positive?
-          prompt.warn("#{pending_accounts} accounts are still pending deletion.")
-        elsif sidekiq_stats.enqueued.positive?
-          prompt.warn('Deletion notices are still being processed')
-        elsif sidekiq_stats.retry_size.positive?
-          prompt.warn('At least one delivery attempt for each deletion notice has been made, but some have failed and are scheduled for retry')
-        else
-          prompt.ok('Every deletion notice has been sent! You can safely delete all data and decomission your servers!')
-        end
-
-        exit(0)
-      end
-
-      exit(1) unless prompt.ask('Type in the domain of the server to confirm:', required: true) == Rails.configuration.x.local_domain
-
-      prompt.warn('This operation WILL NOT be reversible.')
-      prompt.warn('While the data won\'t be erased locally, the server will be in a BROKEN STATE afterwards.')
-      prompt.warn('The deletion process itself may take a long time, and will be handled by Sidekiq, so do not shut it down until it has finished (you will be able to re-run this command to see the state of the self-destruct process).')
-
-      exit(1) if prompt.no?('Are you sure you want to proceed?')
-
-      self_destruct_value = Rails.application.message_verifier('self-destruct').generate(Rails.configuration.x.local_domain)
-      prompt.ok('To switch Mastodon to self-destruct mode, add the following variable to your evironment (e.g. by adding a line to your `.env.production`) and restart all Mastodon processes:')
-      prompt.ok("  SELF_DESTRUCT=#{self_destruct_value}")
-      prompt.ok("\nYou can re-run this command to see the state of the self-destruct process.")
-    rescue TTY::Reader::InputInterrupt
-      exit(1)
-    end
+    include Federation
 
     map %w(--version -v) => :version
 

package.json

@@ -164,6 +164,7 @@
     "@types/object-assign": "^4.0.30",
     "@types/prop-types": "^15.7.5",
     "@types/punycode": "^2.1.0",
+    "@types/rails__ujs": "^6.0.4",
     "@types/react": "^18.2.7",
     "@types/react-dom": "^18.2.4",
     "@types/react-helmet": "^6.1.6",
@@ -187,6 +188,7 @@
     "babel-jest": "^29.5.0",
     "eslint": "^8.41.0",
     "eslint-config-prettier": "^9.0.0",
+    "eslint-define-config": "^2.0.0",
     "eslint-import-resolver-typescript": "^3.5.5",
     "eslint-plugin-formatjs": "^4.10.1",
     "eslint-plugin-import": "~2.29.0",

spec/controllers/api/v1/accounts/familiar_followers_controller_spec.rb

@@ -28,7 +28,7 @@ describe Api::V1::Accounts::FamiliarFollowersController do
         account_ids = [account_a, account_b, account_b, account_a, account_a].map { |a| a.id.to_s }
         get :index, params: { id: account_ids }
 
-        expect(body_as_json.pluck(:id)).to eq [account_a.id.to_s, account_b.id.to_s]
+        expect(body_as_json.pluck(:id)).to contain_exactly(account_a.id.to_s, account_b.id.to_s)
       end
     end
   end

spec/controllers/concerns/challengable_concern_spec.rb

@@ -85,7 +85,7 @@ RSpec.describe ChallengableConcern do
       before { get :foo }
 
       it 'renders challenge' do
-        expect(response).to render_template('auth/challenges/new')
+        expect(response).to render_template('auth/challenges/new', layout: :auth)
       end
 
       # See Auth::ChallengesControllerSpec
@@ -95,7 +95,7 @@ RSpec.describe ChallengableConcern do
       before { post :bar }
 
       it 'renders challenge' do
-        expect(response).to render_template('auth/challenges/new')
+        expect(response).to render_template('auth/challenges/new', layout: :auth)
       end
 
       it 'accepts correct password' do
@@ -106,7 +106,7 @@ RSpec.describe ChallengableConcern do
 
       it 'rejects wrong password' do
         post :bar, params: { form_challenge: { current_password: 'dddfff888123' } }
-        expect(response.body).to render_template('auth/challenges/new')
+        expect(response.body).to render_template('auth/challenges/new', layout: :auth)
         expect(session[:challenge_passed_at]).to be_nil
       end
     end

spec/controllers/settings/two_factor_authentication/confirmations_controller_spec.rb

@@ -20,37 +20,30 @@ describe Settings::TwoFactorAuthentication::ConfirmationsController do
   [true, false].each do |with_otp_secret|
     let(:user) { Fabricate(:user, email: 'local-part@domain', otp_secret: with_otp_secret ? 'oldotpsecret' : nil) }
 
+    context 'when signed in' do
+      before { sign_in user, scope: :user }
+
       describe 'GET #new' do
-      context 'when signed in and a new otp secret has been set in the session' do
+        context 'when a new otp secret has been set in the session' do
           subject do
-          sign_in user, scope: :user
             get :new, session: { challenge_passed_at: Time.now.utc, new_otp_secret: 'thisisasecretforthespecofnewview' }
           end
 
           include_examples 'renders :new'
         end
 
-      it 'redirects if not signed in' do
-        get :new
-        expect(response).to redirect_to('/auth/sign_in')
-      end
-
         it 'redirects if a new otp_secret has not been set in the session' do
-        sign_in user, scope: :user
           get :new, session: { challenge_passed_at: Time.now.utc }
+
           expect(response).to redirect_to('/settings/otp_authentication')
         end
       end
 
       describe 'POST #create' do
-      context 'when signed in' do
-        before do
-          sign_in user, scope: :user
-        end
-
         describe 'when form_two_factor_confirmation parameter is not provided' do
           it 'raises ActionController::ParameterMissing' do
             post :create, params: {}, session: { challenge_passed_at: Time.now.utc, new_otp_secret: 'thisisasecretforthespecofnewview' }
+
             expect(response).to have_http_status(400)
           end
         end
@@ -58,22 +51,49 @@ describe Settings::TwoFactorAuthentication::ConfirmationsController do
         describe 'when creation succeeds' do
           let!(:otp_backup_codes) { user.generate_otp_backup_codes! }
 
-          it 'renders page with success' do
+          before do
             prepare_user_otp_generation
-            prepare_user_otp_consumption
+            prepare_user_otp_consumption_response(true)
             allow(controller).to receive(:current_user).and_return(user)
+          end
 
-            expect do
-              post :create,
-                   params: { form_two_factor_confirmation: { otp_attempt: '123456' } },
-                   session: { challenge_passed_at: Time.now.utc, new_otp_secret: 'thisisasecretforthespecofnewview' }
-            end.to change { user.reload.otp_secret }.to 'thisisasecretforthespecofnewview'
+          it 'renders page with success' do
+            expect { post_create_with_options }
+              .to change { user.reload.otp_secret }.to 'thisisasecretforthespecofnewview'
 
             expect(assigns(:recovery_codes)).to eq otp_backup_codes
             expect(flash[:notice]).to eq 'Two-factor authentication successfully enabled'
             expect(response).to have_http_status(200)
             expect(response).to render_template('settings/two_factor_authentication/recovery_codes/index')
           end
+        end
+
+        describe 'when creation fails' do
+          subject do
+            expect { post_create_with_options }
+              .to(not_change { user.reload.otp_secret })
+          end
+
+          before do
+            prepare_user_otp_consumption_response(false)
+            allow(controller).to receive(:current_user).and_return(user)
+          end
+
+          it 'renders page with error message' do
+            subject
+            expect(response.body).to include 'The entered code was invalid! Are server time and device time correct?'
+          end
+
+          include_examples 'renders :new'
+        end
+
+        private
+
+        def post_create_with_options
+          post :create,
+               params: { form_two_factor_confirmation: { otp_attempt: '123456' } },
+               session: { challenge_passed_at: Time.now.utc, new_otp_secret: 'thisisasecretforthespecofnewview' }
+        end
 
         def prepare_user_otp_generation
           allow(user)
@@ -81,46 +101,28 @@ describe Settings::TwoFactorAuthentication::ConfirmationsController do
             .and_return(otp_backup_codes)
         end
 
-          def prepare_user_otp_consumption
+        def prepare_user_otp_consumption_response(result)
           options = { otp_secret: 'thisisasecretforthespecofnewview' }
           allow(user)
             .to receive(:validate_and_consume_otp!)
             .with('123456', options)
-              .and_return(true)
+            .and_return(result)
         end
       end
-
-        describe 'when creation fails' do
-          subject do
-            options = { otp_secret: 'thisisasecretforthespecofnewview' }
-            allow(user)
-              .to receive(:validate_and_consume_otp!)
-              .with('123456', options)
-              .and_return(false)
-            allow(controller).to receive(:current_user).and_return(user)
-
-            expect do
-              post :create,
-                   params: { form_two_factor_confirmation: { otp_attempt: '123456' } },
-                   session: { challenge_passed_at: Time.now.utc, new_otp_secret: 'thisisasecretforthespecofnewview' }
-            end.to(not_change { user.reload.otp_secret })
-          end
-
-          it 'renders the new view' do
-            subject
-            expect(response.body).to include 'The entered code was invalid! Are server time and device time correct?'
-          end
-
-          include_examples 'renders :new'
     end
   end
 
   context 'when not signed in' do
-        it 'redirects if not signed in' do
+    it 'redirects on POST to create' do
       post :create, params: { form_two_factor_confirmation: { otp_attempt: '123456' } }
+
+      expect(response).to redirect_to('/auth/sign_in')
+    end
+
+    it 'redirects on GET to new' do
+      get :new
+
       expect(response).to redirect_to('/auth/sign_in')
     end
   end
 end
-  end
-end

spec/fabricators/action_log_fabricator.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-Fabricator('Admin::ActionLog') do
+Fabricator(:action_log, from: Admin::ActionLog) do
   account { Fabricate.build(:account) }
   action  'MyString'
   target  nil

spec/lib/content_security_policy_spec.rb

@@ -59,10 +59,10 @@ describe ContentSecurityPolicy do
     end
   end
 
-  describe '#media_host' do
+  describe '#media_hosts' do
     context 'when there is no configured CDN' do
       it 'defaults to using the assets_host value' do
-        expect(subject.media_host).to eq(subject.assets_host)
+        expect(subject.media_hosts).to contain_exactly(subject.assets_host)
       end
     end
 
@@ -74,7 +74,7 @@ describe ContentSecurityPolicy do
       end
 
       it 'uses the s3 alias host value' do
-        expect(subject.media_host).to eq 'https://asset-host.s3-alias.example'
+        expect(subject.media_hosts).to contain_exactly(subject.assets_host, 'https://asset-host.s3-alias.example')
       end
     end
 
@@ -86,7 +86,7 @@ describe ContentSecurityPolicy do
       end
 
       it 'uses the s3 alias host value and preserves the path' do
-        expect(subject.media_host).to eq 'https://asset-host.s3-alias.example/pathname/'
+        expect(subject.media_hosts).to contain_exactly(subject.assets_host, 'https://asset-host.s3-alias.example/pathname/')
       end
     end
 
@@ -98,7 +98,7 @@ describe ContentSecurityPolicy do
       end
 
       it 'uses the s3 cloudfront host value' do
-        expect(subject.media_host).to eq 'https://asset-host.s3-cloudfront.example'
+        expect(subject.media_hosts).to contain_exactly(subject.assets_host, 'https://asset-host.s3-cloudfront.example')
       end
     end
 
@@ -110,7 +110,7 @@ describe ContentSecurityPolicy do
       end
 
       it 'uses the azure alias host value' do
-        expect(subject.media_host).to eq 'https://asset-host.azure-alias.example'
+        expect(subject.media_hosts).to contain_exactly(subject.assets_host, 'https://asset-host.azure-alias.example')
       end
     end
 
@@ -122,7 +122,7 @@ describe ContentSecurityPolicy do
       end
 
       it 'uses the s3 hostname host value' do
-        expect(subject.media_host).to eq 'https://asset-host.s3.example'
+        expect(subject.media_hosts).to contain_exactly(subject.assets_host, 'https://asset-host.s3.example')
       end
     end
   end

spec/models/report_spec.rb

@@ -110,9 +110,9 @@ describe Report do
     let(:status) { Fabricate(:status) }
 
     before do
-      Fabricate('Admin::ActionLog', target_type: 'Report', account_id: target_account.id, target_id: report.id, created_at: 2.days.ago)
-      Fabricate('Admin::ActionLog', target_type: 'Account', account_id: target_account.id, target_id: report.target_account_id, created_at: 2.days.ago)
-      Fabricate('Admin::ActionLog', target_type: 'Status', account_id: target_account.id, target_id: status.id, created_at: 2.days.ago)
+      Fabricate(:action_log, target_type: 'Report', account_id: target_account.id, target_id: report.id, created_at: 2.days.ago)
+      Fabricate(:action_log, target_type: 'Account', account_id: target_account.id, target_id: report.target_account_id, created_at: 2.days.ago)
+      Fabricate(:action_log, target_type: 'Status', account_id: target_account.id, target_id: status.id, created_at: 2.days.ago)
     end
 
     it 'returns right logs' do

spec/serializers/rest/instance_serializer_spec.rb

@@ -10,5 +10,11 @@ describe REST::InstanceSerializer do
     it 'returns recent usage data' do
       expect(serialization['usage']).to eq({ 'users' => { 'active_month' => 0 } })
     end
+
+    it 'returns the VAPID public key' do
+      expect(serialization['configuration']['vapid']).to eq({
+        'public_key' => Rails.configuration.x.vapid_public_key,
+      })
+    end
   end
 end

spec/services/activitypub/process_status_update_service_spec.rb

@@ -384,7 +384,7 @@ RSpec.describe ActivityPub::ProcessStatusUpdateService, type: :service do
       end
 
       it 'updates the existing media attachment in-place' do
-        media_attachment = status.media_attachments.reload.first
+        media_attachment = status.media_attachments.ordered.reload.first
 
         expect(media_attachment).to_not be_nil
         expect(media_attachment.remote_url).to eq 'https://example.com/foo.png'

spec/services/resolve_account_service_spec.rb

@@ -144,6 +144,19 @@ RSpec.describe ResolveAccountService, type: :service do
     end
   end
 
+  context 'with webfinger response subject missing a host value' do
+    let(:body) { Oj.dump({ subject: 'user@' }) }
+    let(:url) { 'https://host.example/.well-known/webfinger?resource=acct:user@host.example' }
+
+    before do
+      stub_request(:get, url).to_return(status: 200, body: body)
+    end
+
+    it 'returns nil with incomplete subject in response' do
+      expect(subject.call('user@host.example')).to be_nil
+    end
+  end
+
   context 'with an ActivityPub account' do
     it 'returns new remote account' do
       account = subject.call('foo@ap.example.com')

streaming/.dockerignore

@@ -0,0 +1,7 @@
+.env
+.env.*
+.gitignore
+node_modules
+.DS_Store
+*.swp
+*~

streaming/.eslintrc.js

@@ -0,0 +1,32 @@
+// @ts-check
+const { defineConfig } = require('eslint-define-config');
+
+module.exports = defineConfig({
+  extends: ['../.eslintrc.js'],
+  env: {
+    browser: false,
+  },
+  parserOptions: {
+    project: true,
+    tsconfigRootDir: __dirname,
+    ecmaFeatures: {
+      jsx: false,
+    },
+    ecmaVersion: 2021,
+  },
+  rules: {
+    'import/no-commonjs': 'off',
+    'import/no-extraneous-dependencies': [
+      'error',
+      {
+        devDependencies: [
+          'streaming/.eslintrc.js',
+        ],
+        optionalDependencies: false,
+        peerDependencies: false,
+        includeTypes: true,
+        packageDir: __dirname,
+      },
+    ],
+  },
+});

streaming/Dockerfile

@@ -0,0 +1,104 @@
+# syntax=docker/dockerfile:1.4
+
+# Please see https://docs.docker.com/engine/reference/builder for information about
+# the extended buildx capabilities used in this file.
+# Make sure multiarch TARGETPLATFORM is available for interpolation
+# See: https://docs.docker.com/build/building/multi-platform/
+ARG TARGETPLATFORM=${TARGETPLATFORM}
+ARG BUILDPLATFORM=${BUILDPLATFORM}
+
+# Node version to use in base image, change with [--build-arg NODE_MAJOR_VERSION="20"]
+ARG NODE_MAJOR_VERSION="20"
+# Debian image to use for base image, change with [--build-arg DEBIAN_VERSION="bookworm"]
+ARG DEBIAN_VERSION="bookworm"
+# Node image to use for base image based on combined variables (ex: 20-bookworm-slim)
+FROM docker.io/node:${NODE_MAJOR_VERSION}-${DEBIAN_VERSION}-slim as streaming
+
+# Timezone used by the Docker container and runtime, change with [--build-arg TZ=Europe/Berlin]
+ARG TZ="Etc/UTC"
+# Linux UID (user id) for the mastodon user, change with [--build-arg UID=1234]
+ARG UID="991"
+# Linux GID (group id) for the mastodon user, change with [--build-arg GID=1234]
+ARG GID="991"
+
+# Apply Mastodon build options based on options above
+ENV \
+# Apply Mastodon version information
+  MASTODON_VERSION_PRERELEASE="${MASTODON_VERSION_PRERELEASE}" \
+  MASTODON_VERSION_METADATA="${MASTODON_VERSION_METADATA}" \
+# Apply timezone
+  TZ=${TZ}
+
+ENV \
+# Configure the IP to bind Mastodon to when serving traffic
+  BIND="0.0.0.0" \
+# Explicitly set PORT to match the exposed port
+  PORT=4000 \
+# Use production settings for Yarn, Node and related nodejs based tools
+  NODE_ENV="production" \
+# Add Ruby and Mastodon installation to the PATH
+  DEBIAN_FRONTEND="noninteractive"
+
+# Set default shell used for running commands
+SHELL ["/bin/bash", "-o", "pipefail", "-o", "errexit", "-c"]
+
+ARG TARGETPLATFORM
+
+RUN echo "Target platform is ${TARGETPLATFORM}"
+
+RUN \
+# Remove automatic apt cache Docker cleanup scripts
+  rm -f /etc/apt/apt.conf.d/docker-clean; \
+# Sets timezone
+  echo "${TZ}" > /etc/localtime; \
+# Creates mastodon user/group and sets home directory
+  groupadd -g "${GID}" mastodon; \
+  useradd -l -u "${UID}" -g "${GID}" -m -d /opt/mastodon mastodon; \
+# Creates symlink for /mastodon folder
+  ln -s /opt/mastodon /mastodon;
+
+# hadolint ignore=DL3008,DL3005
+RUN \
+# Mount Apt cache and lib directories from Docker buildx caches
+--mount=type=cache,id=apt-cache-${TARGETPLATFORM},target=/var/cache/apt,sharing=locked \
+--mount=type=cache,id=apt-lib-${TARGETPLATFORM},target=/var/lib/apt,sharing=locked \
+# Upgrade to check for security updates to Debian image
+  apt-get update; \
+  apt-get dist-upgrade -yq; \
+  apt-get install -y --no-install-recommends \
+    ca-certificates \
+    curl \
+    tzdata \
+  ;
+
+# Set /opt/mastodon as working directory
+WORKDIR /opt/mastodon
+
+# Copy Node package configuration files from build system to container
+COPY package.json yarn.lock .yarnrc.yml /opt/mastodon/
+COPY .yarn /opt/mastodon/.yarn
+# Copy Streaming source code from build system to container
+COPY ./streaming /opt/mastodon/streaming
+
+RUN \
+# Mount local Corepack and Yarn caches from Docker buildx caches
+--mount=type=cache,id=corepack-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/corepack,sharing=locked \
+--mount=type=cache,id=yarn-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/yarn,sharing=locked \
+  # Configure Corepack
+  rm /usr/local/bin/yarn*; \
+  corepack enable; \
+  corepack prepare --activate;
+
+RUN \
+# Mount Corepack and Yarn caches from Docker buildx caches
+--mount=type=cache,id=corepack-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/corepack,sharing=locked \
+--mount=type=cache,id=yarn-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/yarn,sharing=locked \
+# Install Node packages
+  yarn workspaces focus --production @mastodon/streaming;
+
+# Set the running user for resulting container
+USER mastodon
+# Expose default Streaming ports
+EXPOSE 4000
+# Run streaming when started
+CMD [ node ./streaming/index.js ]

streaming/index.js

@@ -12,10 +12,12 @@ const { JSDOM } = require('jsdom');
 const log = require('npmlog');
 const pg = require('pg');
 const dbUrlToConfig = require('pg-connection-string').parse;
-const metrics = require('prom-client');
 const uuid = require('uuid');
 const WebSocket = require('ws');
 
+const { setupMetrics } = require('./metrics');
+const { isTruthy } = require("./utils");
+
 const environment = process.env.NODE_ENV || 'development';
 
 // Correctly detect and load .env or .env.production file based on environment:
@@ -196,78 +198,15 @@ const startServer = async () => {
   const redisClient = await createRedisClient(redisConfig);
   const { redisPrefix } = redisConfig;
 
-  // Collect metrics from Node.js
-  metrics.collectDefaultMetrics();
-
-  new metrics.Gauge({
-    name: 'pg_pool_total_connections',
-    help: 'The total number of clients existing within the pool',
-    collect() {
-      this.set(pgPool.totalCount);
-    },
-  });
-
-  new metrics.Gauge({
-    name: 'pg_pool_idle_connections',
-    help: 'The number of clients which are not checked out but are currently idle in the pool',
-    collect() {
-      this.set(pgPool.idleCount);
-    },
-  });
-
-  new metrics.Gauge({
-    name: 'pg_pool_waiting_queries',
-    help: 'The number of queued requests waiting on a client when all clients are checked out',
-    collect() {
-      this.set(pgPool.waitingCount);
-    },
-  });
-
-  const connectedClients = new metrics.Gauge({
-    name: 'connected_clients',
-    help: 'The number of clients connected to the streaming server',
-    labelNames: ['type'],
-  });
-
-  const connectedChannels = new metrics.Gauge({
-    name: 'connected_channels',
-    help: 'The number of channels the streaming server is streaming to',
-    labelNames: [ 'type', 'channel' ]
-  });
-
-  const redisSubscriptions = new metrics.Gauge({
-    name: 'redis_subscriptions',
-    help: 'The number of Redis channels the streaming server is subscribed to',
-  });
-
-  const redisMessagesReceived = new metrics.Counter({
-    name: 'redis_messages_received_total',
-    help: 'The total number of messages the streaming server has received from redis subscriptions'
-  });
-
-  const messagesSent = new metrics.Counter({
-    name: 'messages_sent_total',
-    help: 'The total number of messages the streaming server sent to clients per connection type',
-    labelNames: [ 'type' ]
-  });
-
-  // Prime the gauges so we don't loose metrics between restarts:
-  redisSubscriptions.set(0);
-  connectedClients.set({ type: 'websocket' }, 0);
-  connectedClients.set({ type: 'eventsource' }, 0);
-
-  // For each channel, initialize the gauges at zero; There's only a finite set of channels available
-  CHANNEL_NAMES.forEach(( channel ) => {
-    connectedChannels.set({ type: 'websocket', channel }, 0);
-    connectedChannels.set({ type: 'eventsource', channel }, 0);
-  });
-
-  // Prime the counters so that we don't loose metrics between restarts.
-  // Unfortunately counters don't support the set() API, so instead I'm using
-  // inc(0) to achieve the same result.
-  redisMessagesReceived.inc(0);
-  messagesSent.inc({ type: 'websocket' }, 0);
-  messagesSent.inc({ type: 'eventsource' }, 0);
+  const metrics = setupMetrics(CHANNEL_NAMES, pgPool);
+  // TODO: migrate all metrics to metrics.X.method() instead of just X.method()
+  const {
+    connectedClients,
+    connectedChannels,
+    redisSubscriptions,
+    redisMessagesReceived,
+    messagesSent,
+  } = metrics;
 
   // When checking metrics in the browser, the favicon is requested this
   // prevents the request from falling through to the API Router, which would
@@ -388,25 +327,6 @@ const startServer = async () => {
     }
   };
 
-  const FALSE_VALUES = [
-    false,
-    0,
-    '0',
-    'f',
-    'F',
-    'false',
-    'FALSE',
-    'off',
-    'OFF',
-  ];
-
-  /**
-   * @param {any} value
-   * @returns {boolean}
-   */
-  const isTruthy = value =>
-    value && !FALSE_VALUES.includes(value);
-
   /**
    * @param {any} req
    * @param {any} res

streaming/metrics.js

@@ -0,0 +1,105 @@
+// @ts-check
+
+const metrics = require('prom-client');
+
+/**
+ * @typedef StreamingMetrics
+ * @property {metrics.Registry} register
+ * @property {metrics.Gauge<"type">} connectedClients
+ * @property {metrics.Gauge<"type" | "channel">} connectedChannels
+ * @property {metrics.Gauge} redisSubscriptions
+ * @property {metrics.Counter} redisMessagesReceived
+ * @property {metrics.Counter<"type">} messagesSent
+ */
+
+/**
+ *
+ * @param {string[]} channels
+ * @param {import('pg').Pool} pgPool
+ * @returns {StreamingMetrics}
+ */
+function setupMetrics(channels, pgPool) {
+  // Collect metrics from Node.js
+  metrics.collectDefaultMetrics();
+
+  new metrics.Gauge({
+    name: 'pg_pool_total_connections',
+    help: 'The total number of clients existing within the pool',
+    collect() {
+      this.set(pgPool.totalCount);
+    },
+  });
+
+  new metrics.Gauge({
+    name: 'pg_pool_idle_connections',
+    help: 'The number of clients which are not checked out but are currently idle in the pool',
+    collect() {
+      this.set(pgPool.idleCount);
+    },
+  });
+
+  new metrics.Gauge({
+    name: 'pg_pool_waiting_queries',
+    help: 'The number of queued requests waiting on a client when all clients are checked out',
+    collect() {
+      this.set(pgPool.waitingCount);
+    },
+  });
+
+  const connectedClients = new metrics.Gauge({
+    name: 'connected_clients',
+    help: 'The number of clients connected to the streaming server',
+    labelNames: ['type'],
+  });
+
+  const connectedChannels = new metrics.Gauge({
+    name: 'connected_channels',
+    help: 'The number of channels the streaming server is streaming to',
+    labelNames: [ 'type', 'channel' ]
+  });
+
+  const redisSubscriptions = new metrics.Gauge({
+    name: 'redis_subscriptions',
+    help: 'The number of Redis channels the streaming server is subscribed to',
+  });
+
+  const redisMessagesReceived = new metrics.Counter({
+    name: 'redis_messages_received_total',
+    help: 'The total number of messages the streaming server has received from redis subscriptions'
+  });
+
+  const messagesSent = new metrics.Counter({
+    name: 'messages_sent_total',
+    help: 'The total number of messages the streaming server sent to clients per connection type',
+    labelNames: [ 'type' ]
+  });
+
+  // Prime the gauges so we don't loose metrics between restarts:
+  redisSubscriptions.set(0);
+  connectedClients.set({ type: 'websocket' }, 0);
+  connectedClients.set({ type: 'eventsource' }, 0);
+
+  // For each channel, initialize the gauges at zero; There's only a finite set of channels available
+  channels.forEach(( channel ) => {
+    connectedChannels.set({ type: 'websocket', channel }, 0);
+    connectedChannels.set({ type: 'eventsource', channel }, 0);
+  });
+
+  // Prime the counters so that we don't loose metrics between restarts.
+  // Unfortunately counters don't support the set() API, so instead I'm using
+  // inc(0) to achieve the same result.
+  redisMessagesReceived.inc(0);
+  messagesSent.inc({ type: 'websocket' }, 0);
+  messagesSent.inc({ type: 'eventsource' }, 0);
+
+  return {
+    register: metrics.register,
+    connectedClients,
+    connectedChannels,
+    redisSubscriptions,
+    redisMessagesReceived,
+    messagesSent,
+  };
+}
+
+exports.setupMetrics = setupMetrics;

streaming/package.json

@@ -12,7 +12,8 @@
     "url": "https://github.com/mastodon/mastodon.git"
   },
   "scripts": {
-    "start": "node ./index.js"
+    "start": "node ./index.js",
+    "check:types": "tsc --noEmit"
   },
   "dependencies": {
     "dotenv": "^16.0.3",
@@ -30,7 +31,10 @@
     "@types/express": "^4.17.17",
     "@types/npmlog": "^7.0.0",
     "@types/pg": "^8.6.6",
-    "@types/uuid": "^9.0.0"
+    "@types/uuid": "^9.0.0",
+    "@types/ws": "^8.5.9",
+    "eslint-define-config": "^2.0.0",
+    "typescript": "^5.0.4"
   },
   "optionalDependencies": {
     "bufferutil": "^4.0.7",

streaming/tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "target": "esnext",
+    "module": "CommonJS",
+    "moduleResolution": "node",
+    "noUnusedParameters": false,
+    "paths": {}
+  },
+  "include": ["./*.js", "./.eslintrc.js"]
+}

streaming/utils.js

@@ -0,0 +1,22 @@
+// @ts-check
+
+const FALSE_VALUES = [
+  false,
+  0,
+  '0',
+  'f',
+  'F',
+  'false',
+  'FALSE',
+  'off',
+  'OFF',
+];
+
+/**
+ * @param {any} value
+ * @returns {boolean}
+ */
+const isTruthy = value =>
+  value && !FALSE_VALUES.includes(value);
+
+exports.isTruthy = isTruthy;

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@@ -3348,6 +3353,13 @@ __metadata:
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   linkType: hard
 
+"eslint-define-config@npm:^2.0.0":
+  version: 2.0.0
+  resolution: "eslint-define-config@npm:2.0.0"
+  checksum: 617c3143bc1ed8df0b20ae632d428d5f241dbb04483631e1410c58fe65ba3e503cf94631c5973115482b58ba464d052422a718c0f4d49182f8d13ffbb36bf1d6
+  languageName: node
+  linkType: hard
+
 "eslint-import-resolver-node@npm:^0.3.9":
   version: 0.3.9
   resolution: "eslint-import-resolver-node@npm:0.3.9"
@@ -10636,8 +10664,8 @@ __metadata:
   linkType: hard
 
 "jsdom@npm:^23.0.0":
-  version: 23.0.0
-  resolution: "jsdom@npm:23.0.0"
+  version: 23.0.1
+  resolution: "jsdom@npm:23.0.1"
   dependencies:
     cssstyle: "npm:^3.0.0"
     data-urls: "npm:^5.0.0"
@@ -10661,11 +10689,11 @@ __metadata:
     ws: "npm:^8.14.2"
     xml-name-validator: "npm:^5.0.0"
   peerDependencies:
-    canvas: ^3.0.0
+    canvas: ^2.11.2
   peerDependenciesMeta:
     canvas:
       optional: true
-  checksum: 2c876a02de49e0ed6b667a4eb9b08b8e76ac189a5571ff97791cc9564e713259314deea6d657cc7f59fc30af41b900e7d833c95017e576dfcaf25f32565722af
+  checksum: 13b2b3693ccb40215d1cce77bac7a295414ee4c0a06e30167f8087c9867145ba23dbd592bd95a801cadd7b3698bfd20b9c3f2c26fd8422607f22609ed2e404ef
   languageName: node
   linkType: hard