Address review: assert uploaded bytes in disk update test

direct_upload_url_for now returns [blob, url] so the authenticated update
test can assert blob.download matches the uploaded payload, not just the
204 status — guarding against a write landing at the wrong key or with the
wrong content. Both update call sites destructure the tuple.

.env.erb

@@ -1,4 +1,4 @@
-<% if (session_token = `op signin --account basecamp --raw`.strip) != "" %># Generated by mrsk envify
+<% if (session_token = `op signin --account 23QPQDKZC5BKBIIG7UGT5GR5RM --raw`.strip) != "" %># Generated by mrsk envify
 MRSK_REGISTRY_PASSWORD=<%= `op read "op://Deploy/Docker Hub MRSK/password" -n --session  #{session_token}` %>
 RAILS_MASTER_KEY=<%= `op read "op://Development/Chat-in-a-box/RAILS_MASTER_KEY" -n --session  #{session_token}` %>
 <% else raise ArgumentError, "Session token missing" end %>

.github/dependabot.yml

@@ -0,0 +1,32 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: "/"
+    groups:
+      github-actions:
+        patterns:
+          - "*"
+    schedule:
+      interval: weekly
+    cooldown:
+      default-days: 7
+
+  - package-ecosystem: bundler
+    directory: "/"
+    schedule:
+      interval: weekly
+    cooldown:
+      semver-major-days: 7
+      semver-minor-days: 3
+      semver-patch-days: 2
+      default-days: 7
+
+  - package-ecosystem: docker
+    directory: "/"
+    schedule:
+      interval: weekly
+    cooldown:
+      semver-major-days: 7
+      semver-minor-days: 3
+      semver-patch-days: 2
+      default-days: 7

.github/workflows/ci.yml

@@ -6,16 +6,22 @@ on:
   pull_request:
     branches: [ main ]
 
+permissions: {}
+
 jobs:
   scan:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          persist-credentials: false
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
+        uses: ruby/setup-ruby@319994f95fa847cf3fb3cd3dbe89f6dcde9f178f # v1.295.0
         with:
           ruby-version: .ruby-version
           bundler-cache: true
@@ -25,12 +31,16 @@ jobs:
 
   lint:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          persist-credentials: false
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
+        uses: ruby/setup-ruby@319994f95fa847cf3fb3cd3dbe89f6dcde9f178f # v1.295.0
         with:
           ruby-version: .ruby-version
           bundler-cache: true
@@ -38,11 +48,32 @@ jobs:
       - name: Lint code for consistent style
         run: bin/rubocop
 
+  lint-actions:
+    name: GitHub Actions audit
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          persist-credentials: false
+
+      - name: Run actionlint
+        uses: rhysd/actionlint@393031adb9afb225ee52ae2ccd7a5af5525e03e8 # v1.7.11
+
+      - name: Run zizmor
+        uses: zizmorcore/zizmor-action@71321a20a9ded102f6e9ce5718a2fcec2c4f70d8 # v0.5.2
+        with:
+          advanced-security: false
+
   test:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     services:
       redis:
-        image: redis
+        image: redis # zizmor: ignore[unpinned-images] -- version tag is fine for service containers
         ports:
           - 6379:6379
         options: --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5
@@ -51,10 +82,12 @@ jobs:
         run: sudo apt-get update && sudo apt-get install --no-install-recommends -y libsqlite3-0 libvips curl ffmpeg
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          persist-credentials: false
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
+        uses: ruby/setup-ruby@319994f95fa847cf3fb3cd3dbe89f6dcde9f178f # v1.295.0
         env:
           REDIS_URL: redis://localhost:6379/0
         with:
@@ -66,9 +99,11 @@ jobs:
 
   test_system:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     services:
       redis:
-        image: redis
+        image: redis # zizmor: ignore[unpinned-images] -- version tag is fine for service containers
         ports:
           - 6379:6379
         options: --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5
@@ -77,10 +112,12 @@ jobs:
         run: sudo apt-get update && sudo apt-get install --no-install-recommends -y libsqlite3-0 libvips curl ffmpeg
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          persist-credentials: false
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
+        uses: ruby/setup-ruby@319994f95fa847cf3fb3cd3dbe89f6dcde9f178f # v1.295.0
         env:
           REDIS_URL: redis://localhost:6379/0
         with:

.github/workflows/publish-image.yml

@@ -13,11 +13,7 @@ concurrency:
   group: publish-${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
-permissions:
+permissions: {}
-  contents: read
-  packages: write
-  id-token: write
-  attestations: write
 
 env:
   IMAGE_DESCRIPTION: Campfire is a web-based chat application with multiple rooms, direct messages, file attachments with previews, search, web push notifications, @mentions, and bot integrations. Single-tenant; production-ready image with web app, background jobs, caching, file serving, and SSL.
@@ -27,6 +23,11 @@ jobs:
   build:
     name: Build and push image (${{ matrix.arch }})
     runs-on: ${{ matrix.runner }}
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+      attestations: write
     timeout-minutes: 45
     strategy:
       fail-fast: false
@@ -43,13 +44,15 @@ jobs:
       IMAGE_NAME: ${{ github.repository }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5.0.0
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3.11.1
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
       - name: Log in to GHCR
-        uses: docker/login-action@v3.5.0
+        uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
@@ -66,7 +69,7 @@ jobs:
 
       - name: Extract Docker metadata (tags, labels) with arch suffix
         id: meta
-        uses: docker/metadata-action@v5.8.0
+        uses: docker/metadata-action@c1e51972afc2121e065aed6d45c65596fe445f3f # v5.8.0
         with:
           images: ${{ steps.vars.outputs.canonical }}
           tags: |
@@ -84,7 +87,7 @@ jobs:
 
       - name: Build and push (${{ matrix.platform }})
         id: build
-        uses: docker/build-push-action@v6.18.0
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
         with:
           context: .
           file: Dockerfile
@@ -102,7 +105,7 @@ jobs:
 
       - name: Attest image provenance (per-arch)
         if: github.event_name != 'pull_request'
-        uses: actions/attest-build-provenance@v3.0.0
+        uses: actions/attest-build-provenance@977bb373ede98d70efdf65b84cb5f73e068dcc2a # v3.0.0
         with:
           subject-name: ${{ steps.vars.outputs.canonical }}
           subject-digest: ${{ steps.build.outputs.digest }}
@@ -113,16 +116,20 @@ jobs:
     needs: build
     if: github.event_name != 'pull_request'
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
     timeout-minutes: 20
     env:
       REGISTRY: ghcr.io
       IMAGE_NAME: ${{ github.repository }}
     steps:
       - name: Set up Docker Buildx (for imagetools)
-        uses: docker/setup-buildx-action@v3.11.1
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
       - name: Log in to GHCR
-        uses: docker/login-action@v3.5.0
+        uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
@@ -139,7 +146,7 @@ jobs:
 
       - name: Compute base tags (no suffix)
         id: meta
-        uses: docker/metadata-action@v5.8.0
+        uses: docker/metadata-action@c1e51972afc2121e065aed6d45c65596fe445f3f # v5.8.0
         with:
           images: ${{ steps.vars.outputs.canonical }}
           tags: |
@@ -157,9 +164,11 @@ jobs:
 
       - name: Create multi-arch manifests
         shell: bash
+        env:
+          TAGS: ${{ steps.meta.outputs.tags }}
         run: |
           set -eu
-          tags="${{ steps.meta.outputs.tags }}"
+          tags="$TAGS"
           echo "Creating manifests for tags:"
           printf '%s\n' "$tags"
           while IFS= read -r tag; do
@@ -185,13 +194,15 @@ jobs:
           done <<< "$tags"
 
       - name: Install Cosign
-        uses: sigstore/cosign-installer@v3.9.2
+        uses: sigstore/cosign-installer@d58896d6a1865668819e1d91763c7751a165e159 # v3.9.2
 
       - name: Cosign sign all tags (keyless OIDC)
         shell: bash
+        env:
+          TAGS: ${{ steps.meta.outputs.tags }}
         run: |
           set -eu
-          tags="${{ steps.meta.outputs.tags }}"
+          tags="$TAGS"
           printf '%s\n' "$tags"
           while IFS= read -r tag; do
             [ -z "$tag" ] && continue

Dockerfile

@@ -26,7 +26,7 @@ FROM base AS build
 
 # Install packages need to build gems
 RUN apt-get update -qq && \
-    apt-get install -y build-essential git pkg-config libyaml-dev  && \
+    apt-get install -y build-essential git pkg-config libyaml-dev libssl-dev && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Install application gems

Gemfile

@@ -12,7 +12,7 @@ gem "sqlite3"
 gem "redis", "~> 5.4"
 
 # Deployment
-gem "puma", "~> 6.6"
+gem "puma", "~> 7.2", ">= 7.2.1"
 
 # Jobs
 gem "resque", "~> 2.7.0"
@@ -48,6 +48,7 @@ gem "thruster"
 group :development, :test do
   gem "debug"
   gem "rubocop-rails-omakase", require: false
+  gem "bundler-audit", require: false
   gem "faker", require: false
   gem "brakeman", require: false
 end

Gemfile.lock

@@ -128,18 +128,21 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    action_text-trix (2.1.15)
+    action_text-trix (2.1.19)
       railties
-    addressable (2.8.7)
+    addressable (2.9.0)
-      public_suffix (>= 2.0.2, < 7.0)
+      public_suffix (>= 2.0.2, < 8.0)
     ast (2.4.3)
     base64 (0.3.0)
-    bcrypt (3.1.20)
+    bcrypt (3.1.22)
     benchmark (0.5.0)
     bigdecimal (3.3.1)
-    brakeman (7.1.1)
+    brakeman (8.0.4)
       racc
     builder (3.3.0)
+    bundler-audit (0.9.3)
+      bundler (>= 1.2.0)
+      thor (~> 1.0)
     capybara (3.40.0)
       addressable
       matrix
@@ -161,7 +164,7 @@ GEM
       irb (~> 1.10)
       reline (>= 0.3.8)
     drb (2.2.3)
-    erb (6.0.0)
+    erb (6.0.4)
     erubi (1.13.1)
     faker (3.5.2)
       i18n (>= 1.8.11, < 2)
@@ -189,7 +192,7 @@ GEM
       actionview (>= 7.0.0)
       activesupport (>= 7.0.0)
     json (2.13.2)
-    jwt (3.1.2)
+    jwt (3.2.0)
       base64
     kredis (1.8.0)
       activemodel (>= 6.0.0)
@@ -221,7 +224,7 @@ GEM
       ruby2_keywords (~> 0.0.1)
     net-http-persistent (4.0.6)
       connection_pool (~> 2.2, >= 2.2.4)
-    net-imap (0.5.12)
+    net-imap (0.6.4)
       date
       net-protocol
     net-pop (0.1.2)
@@ -231,13 +234,13 @@ GEM
     net-smtp (0.5.1)
       net-protocol
     nio4r (2.7.5)
-    nokogiri (1.18.10-aarch64-linux-gnu)
+    nokogiri (1.19.3-aarch64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.10-arm64-darwin)
+    nokogiri (1.19.3-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.10-x86_64-darwin)
+    nokogiri (1.19.3-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.10-x86_64-linux-gnu)
+    nokogiri (1.19.3-x86_64-linux-gnu)
       racc (~> 1.4)
     openssl (3.3.0)
     ostruct (0.6.3)
@@ -256,15 +259,15 @@ GEM
       date
       stringio
     public_suffix (6.0.2)
-    puma (6.6.1)
+    puma (7.2.1)
       nio4r (~> 2.0)
     racc (1.8.1)
-    rack (3.2.4)
+    rack (3.2.6)
-    rack-protection (4.1.1)
+    rack-protection (4.2.1)
       base64 (>= 0.1.0)
       logger (>= 1.6.0)
       rack (>= 3.0.0, < 4)
-    rack-session (2.1.1)
+    rack-session (2.1.2)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)
     rack-test (2.2.0)
@@ -305,12 +308,12 @@ GEM
     resque-pool (0.7.1)
       rake (>= 10.0, < 14.0)
       resque (>= 1.22, < 3)
-    rexml (3.4.1)
+    rexml (3.4.4)
-    rqrcode (3.1.0)
+    rqrcode (3.2.0)
       chunky_png (~> 1.0)
       rqrcode_core (~> 2.0)
-    rqrcode_core (2.0.0)
+    rqrcode_core (2.1.0)
-    rubocop (1.80.0)
+    rubocop (1.80.2)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
@@ -357,11 +360,11 @@ GEM
     sentry-ruby (5.26.0)
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.0.2)
-    sinatra (4.1.1)
+    sinatra (4.2.1)
       logger (>= 1.6.0)
       mustermann (~> 3.0)
       rack (>= 3.0.0, < 4)
-      rack-protection (= 4.1.1)
+      rack-protection (= 4.2.1)
       rack-session (>= 2.0.0, < 3)
       tilt (~> 2.0)
     sqlite3 (2.7.3-aarch64-linux-gnu)
@@ -381,9 +384,9 @@ GEM
     tsort (0.2.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    unicode-display_width (3.1.5)
+    unicode-display_width (3.2.0)
-      unicode-emoji (~> 4.0, >= 4.0.4)
+      unicode-emoji (~> 4.1)
-    unicode-emoji (4.0.4)
+    unicode-emoji (4.2.0)
     uri (1.1.1)
     useragent (0.16.11)
     web-push (3.0.2)
@@ -412,6 +415,7 @@ DEPENDENCIES
   bcrypt
   benchmark
   brakeman
+  bundler-audit
   capybara
   debug
   faker
@@ -425,7 +429,7 @@ DEPENDENCIES
   ostruct
   platform_agent
   propshaft!
-  puma (~> 6.6)
+  puma (~> 7.2, >= 7.2.1)
   rails!
   rails_autolink
   redis (~> 5.4)
@@ -444,4 +448,4 @@ DEPENDENCIES
   webmock
 
 BUNDLED WITH
-   2.5.9
+  4.0.13

app/controllers/concerns/authentication.rb

@@ -67,17 +67,27 @@ module Authentication
       authenticated_as session
     end
 
+    def terminate_current_session
+      Current.session&.destroy!
+      reset_session
+      remove_authentication_cookie
+    end
+
     def authenticated_as(session)
-      Current.user = session.user
+      Current.session = session
       set_authenticated_by(:session)
-      cookies.signed.permanent[:session_token] = { value: session.token, httponly: true, same_site: :lax }
+      set_authentication_cookie(session)
     end
 
     def post_authenticating_url
       session.delete(:return_to_after_authenticating) || root_url
     end
 
-    def reset_authentication
+    def set_authentication_cookie(session)
+      cookies.signed.permanent[:session_token] = { value: session.token, httponly: true, same_site: :lax }
+    end
+
+    def remove_authentication_cookie
       cookies.delete(:session_token)
     end
 

app/controllers/sessions_controller.rb

@@ -18,7 +18,7 @@ class SessionsController < ApplicationController
 
   def destroy
     remove_push_subscription
-    reset_authentication
+    terminate_current_session
     redirect_to root_url
   end
 

app/controllers/users/sidebars_controller.rb

@@ -16,7 +16,7 @@ class Users::SidebarsController < ApplicationController
 
     def find_direct_placeholder_users
       exclude_user_ids = user_ids_already_in_direct_rooms_with_current_user.including(Current.user.id)
-      User.active.where.not(id: exclude_user_ids).order(:created_at).limit(DIRECT_PLACEHOLDERS - exclude_user_ids.count)
+      User.active.where.not(id: exclude_user_ids).order(:created_at).limit([ DIRECT_PLACEHOLDERS - exclude_user_ids.count, 0 ].max)
     end
 
     def user_ids_already_in_direct_rooms_with_current_user

app/models/current.rb

@@ -1,8 +1,16 @@
 class Current < ActiveSupport::CurrentAttributes
-  attribute :user, :request
+  attribute :session, :user, :request
 
   delegate :host, :protocol, to: :request, prefix: true, allow_nil: true
 
+  def session=(value)
+    super(value)
+
+    if value.present?
+      self.user = session.user
+    end
+  end
+
   def account
     Account.first
   end

bin/setup

@@ -60,7 +60,10 @@ echo
 if command -v brew &>/dev/null; then
   step "Installing packages" brew install sqlite ffmpeg mise
 elif command -v pacman &>/dev/null; then
-  step "Installing packages" sudo pacman -S --noconfirm --needed sqlite ffmpeg mise
+  packages=(sqlite ffmpeg mise)
+  if ! pacman -Q "${packages[@]}" >/dev/null 2>&1; then
+    step "Installing packages" sudo pacman -S --noconfirm --needed "${packages[@]}"
+  fi
 elif command -v apt &>/dev/null; then
   step "Installing packages" sudo apt-get install --no-install-recommends -y libsqlite3-0 ffmpeg
 fi
@@ -100,6 +103,20 @@ if ! redis_running; then
   fi
 fi
 
+# Install GitHub Actions linting tools
+for tool in actionlint shellcheck zizmor; do
+  if ! command -v "$tool" &> /dev/null; then
+    if command -v brew &> /dev/null; then
+      step "Installing $tool" brew install "$tool"
+    elif command -v pacman &> /dev/null; then
+      step "Installing $tool" sudo pacman -S --noconfirm "$tool"
+    else
+      echo "Error: install $tool manually" >&2
+      exit 1
+    fi
+  fi
+done
+
 step "Cleaning up logs and tempfiles" rails log:clear tmp:clear
 
 step "Restarting services" rails restart

config/ci.rb

@@ -4,6 +4,8 @@ CI.run do
   step "Setup", "bin/setup --skip-server"
 
   step "Style: Ruby", "bin/rubocop"
+  step "Style: GitHub Actions (actionlint)", "actionlint"
+  step "Style: GitHub Actions (zizmor)", "zizmor ."
 
   step "Security: Gem audit", "bin/bundler-audit"
   step "Security: Importmap vulnerability audit", "bin/importmap audit"

config/importmap.rb

@@ -5,7 +5,7 @@ pin "@hotwired/stimulus-loading", to: "stimulus-loading.js"
 pin "@hotwired/turbo-rails", to: "turbo.js"
 pin "@rails/actioncable", to: "actioncable.esm.js"
 pin "@rails/request.js", to: "@rails--request.js" # @0.0.8
-pin "trix", to: "trix.esm.min.js" # @2.0.10
+pin "trix", to: "trix.esm.min.js" # @2.1.19
 pin "@rails/actiontext", to: "actiontext.js"
 pin "highlight.js", to: "highlight.js/core.js"
 

config/initializers/active_storage.rb

@@ -2,4 +2,30 @@ ActiveSupport.on_load(:active_storage_blob) do
   ActiveStorage::DiskController.after_action only: :show do
     response.set_header("Cache-Control", "max-age=3600, public")
   end
+
+  # Gate the ActiveStorage write path behind app authentication. These endpoints
+  # ship unauthenticated by Rails default; Campfire never uses direct upload for
+  # legit attachments (those go through MessagesController#create, and Trix file
+  # drops are disabled in the composer). Requiring a session on the write actions
+  # blocks anonymous blob writes and disk-fill while leaving blob serving public.
+  #
+  # ActiveStorage controllers live in ActiveStorage::Engine, so they see the
+  # engine's url helpers, not the main app's. Include the application helpers
+  # first so Authentication#request_authentication can redirect to new_session_url.
+  ActiveStorage::DirectUploadsController.include Rails.application.routes.url_helpers
+  ActiveStorage::DirectUploadsController.include Authentication # only action: #create
+
+  ActiveStorage::DiskController.include Rails.application.routes.url_helpers
+  ActiveStorage::DiskController.include Authentication
+
+  # Blob serving (#show) stays public so signed-token attachment URLs keep
+  # resolving for unauthenticated and bot clients alike.
+  ActiveStorage::DiskController.allow_unauthenticated_access only: :show
+  ActiveStorage::DiskController.allow_bot_access only: :show
+
+  # Including Authentication re-adds protect_from_forgery, but Active Storage's
+  # direct-upload service PUT (#update) carries only signed service headers and
+  # no authenticity token. Re-exempt it from CSRF so authenticated uploads can
+  # still store bytes; the signed URL token and the session check remain.
+  ActiveStorage::DiskController.skip_forgery_protection only: :update
 end

lib/restricted_http/private_network_guard.rb

@@ -16,7 +16,7 @@ module RestrictedHTTP
 
     def private_ip?(ip)
       IPAddr.new(ip).then do |ipaddr|
-        ipaddr.private? || ipaddr.loopback? || ipaddr.link_local? || ipaddr.ipv4_mapped? || LOCAL_IP.include?(ipaddr)
+        ipaddr.private? || ipaddr.loopback? || ipaddr.link_local? || ipaddr.ipv4_mapped? || ipaddr.ipv4_compat? || LOCAL_IP.include?(ipaddr)
       end
     rescue IPAddr::InvalidAddressError
       true

test/controllers/active_storage/direct_uploads_controller_test.rb

@@ -0,0 +1,83 @@
+require "test_helper"
+
+class ActiveStorage::DirectUploadsControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    host! "once.campfire.test"
+  end
+
+  test "create requires authentication" do
+    assert_no_difference -> { ActiveStorage::Blob.count } do
+      post rails_direct_uploads_url, params: { blob: blob_params }
+    end
+
+    assert_redirected_to new_session_url
+  end
+
+  test "create succeeds for an authenticated session" do
+    sign_in :david
+
+    assert_difference -> { ActiveStorage::Blob.count }, 1 do
+      post rails_direct_uploads_url, params: { blob: blob_params }
+    end
+
+    assert_response :success
+  end
+
+  test "disk show stays reachable without authentication" do
+    blob = ActiveStorage::Blob.create_and_upload! \
+      io: StringIO.new("hello"), filename: "hello.txt", content_type: "text/plain"
+
+    ActiveStorage::Current.set(url_options: { host: "once.campfire.test", protocol: "http" }) do
+      get blob.url
+    end
+
+    assert_response :success
+  end
+
+  test "disk update requires authentication" do
+    _blob, url = direct_upload_url_for("hello")
+
+    put url, params: "hello", headers: { "Content-Type" => "text/plain" }
+
+    assert_redirected_to new_session_url
+  end
+
+  test "disk update stores bytes for an authenticated session without a CSRF token" do
+    sign_in :david
+    blob, url = direct_upload_url_for("hello")
+
+    # Forgery protection is off in test by default; turn it on so this proves the
+    # signed-token service PUT stays CSRF-exempt even when the concern re-arms it.
+    with_forgery_protection do
+      put url, params: "hello", headers: { "Content-Type" => "text/plain" }
+    end
+
+    assert_response :no_content
+    assert_equal "hello", blob.download
+  end
+
+  private
+    def blob_params
+      content = "hello"
+      { filename: "hello.txt", byte_size: content.bytesize, content_type: "text/plain", \
+        checksum: Digest::MD5.base64digest(content) }
+    end
+
+    def direct_upload_url_for(content)
+      blob = ActiveStorage::Blob.create_before_direct_upload! \
+        filename: "hello.txt", byte_size: content.bytesize, \
+        checksum: Digest::MD5.base64digest(content), content_type: "text/plain"
+      url = ActiveStorage::Current.set(url_options: { host: "once.campfire.test", protocol: "http" }) do
+        blob.service_url_for_direct_upload
+      end
+      [ blob, url ]
+    end
+
+    def with_forgery_protection
+      original = ActionController::Base.allow_forgery_protection
+      ActionController::Base.allow_forgery_protection = true
+      yield
+    ensure
+      ActionController::Base.allow_forgery_protection = original
+    end
+end

test/controllers/sessions_controller_test.rb

@@ -28,7 +28,9 @@ class SessionsControllerTest < ActionDispatch::IntegrationTest
   end
 
   test "create with valid credentials" do
-    post session_url, params: { email_address: "david@37signals.com", password: "secret123456" }
+    assert_difference -> { Session.count }, +1 do
+      post session_url, params: { email_address: "david@37signals.com", password: "secret123456" }
+    end
 
     assert_redirected_to root_url
     assert parsed_cookies.signed[:session_token]
@@ -43,11 +45,15 @@ class SessionsControllerTest < ActionDispatch::IntegrationTest
 
   test "destroy" do
     sign_in :david
+    session = users(:david).sessions.last
 
-    delete session_url
+    assert_difference -> { Session.count }, -1 do
+      delete session_url
+    end
 
     assert_redirected_to root_url
     assert_not cookies[:session_token].present?
+    assert_nil Session.find_by(id: session.id)
   end
 
   test "destroy removes the push subscription for the device" do

test/lib/restricted_http/private_network_guard_test.rb

@@ -0,0 +1,89 @@
+require "test_helper"
+require "restricted_http/private_network_guard"
+
+class RestrictedHTTP::PrivateNetworkGuardTest < ActiveSupport::TestCase
+  test "private_ip? returns true for 'This' network (RFC1700)" do
+    assert_private_ip "0.0.0.0"
+    assert_private_ip "0.255.255.255"
+  end
+
+  test "private_ip? returns true for loopback addresses" do
+    assert_private_ip "127.0.0.0"
+    assert_private_ip "127.0.0.1"
+    assert_private_ip "127.255.255.255"
+  end
+
+  test "private_ip? returns true for RFC1918 private addresses" do
+    assert_private_ip "10.0.0.0"
+    assert_private_ip "10.255.255.255"
+    assert_private_ip "172.16.0.0"
+    assert_private_ip "172.31.255.255"
+    assert_private_ip "192.168.0.0"
+    assert_private_ip "192.168.255.255"
+  end
+
+  test "private_ip? returns true for link-local addresses" do
+    assert_private_ip "169.254.0.1"
+    assert_private_ip "169.254.169.254"  # AWS IMDS
+    assert_private_ip "169.254.255.255"
+  end
+
+  test "private_ip? returns false for public addresses" do
+    assert_not RestrictedHTTP::PrivateNetworkGuard.private_ip?("93.184.216.34")
+    assert_not RestrictedHTTP::PrivateNetworkGuard.private_ip?("8.8.8.8")
+  end
+
+  # IPv6 address format tests (SSRF bypass prevention)
+
+  test "private_ip? returns true for IPv4-mapped IPv6 addresses with private IPs" do
+    assert_private_ip "::ffff:192.168.1.1"
+    assert_private_ip "::ffff:10.0.0.1"
+    assert_private_ip "::ffff:172.16.0.1"
+  end
+
+  test "private_ip? returns true for IPv4-mapped IPv6 addresses with link-local IPs" do
+    assert_private_ip "::ffff:169.254.169.254"  # AWS metadata via mapped format
+  end
+
+  test "private_ip? returns true for IPv4-mapped IPv6 addresses even with public IPs" do
+    # Block all ipv4_mapped? since DNS never returns this format legitimately
+    assert_private_ip "::ffff:93.184.216.34"
+  end
+
+  test "private_ip? returns true for IPv4-compatible IPv6 addresses with private IPs" do
+    assert_private_ip "::192.168.1.1"
+    assert_private_ip "::10.0.0.1"
+  end
+
+  test "private_ip? returns true for IPv4-compatible IPv6 addresses with link-local IPs" do
+    assert_private_ip "::169.254.169.254"  # AWS metadata via compat format - the reported bypass
+  end
+
+  test "private_ip? returns true for IPv4-compatible IPv6 addresses even with public IPs" do
+    # Block all ipv4_compat? since DNS never returns this format legitimately
+    assert_private_ip "::93.184.216.34"
+  end
+
+  test "private_ip? returns true for invalid addresses" do
+    assert RestrictedHTTP::PrivateNetworkGuard.private_ip?("not-an-ip")
+    assert RestrictedHTTP::PrivateNetworkGuard.private_ip?("")
+  end
+
+  test "resolve raises Violation for private hostname" do
+    Resolv.stubs(:getaddress).returns("192.168.1.1")
+    assert_raises RestrictedHTTP::Violation do
+      RestrictedHTTP::PrivateNetworkGuard.resolve("private.example.com")
+    end
+  end
+
+  test "resolve returns IP for public hostname" do
+    Resolv.stubs(:getaddress).returns("93.184.216.34")
+    assert_equal "93.184.216.34", RestrictedHTTP::PrivateNetworkGuard.resolve("example.com")
+  end
+
+  private
+    def assert_private_ip(address)
+      assert RestrictedHTTP::PrivateNetworkGuard.private_ip?(address),
+        "Expected #{address} to be classified as private"
+    end
+end

vendor/javascript/trix.esm.min.js

@@ -1,6 +1,7 @@
 /*
-Trix 2.0.10
+Trix 2.1.19
-Copyright © 2024 37signals, LLC
+Copyright © 2026 37signals, LLC
  */
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