Merge branch 'master' into keyframe_extraction_v1

# Conflicts:
#	Jellyfin.Api/Controllers/DynamicHlsController.cs
#	MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs
#	MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs

.ci/azure-pipelines-abi.yml

@@ -34,7 +34,6 @@ jobs:
         inputs:
           packageType: sdk
           version: ${{ parameters.DotNetSdkVersion }}
-          includePreviewVersions: true
 
       - task: DotNetCoreCLI@2
         displayName: 'Install ABI CompatibilityChecker Tool'

.ci/azure-pipelines-main.yml

@@ -54,7 +54,6 @@ jobs:
         inputs:
           packageType: sdk
           version: ${{ parameters.DotNetSdkVersion }}
-          includePreviewVersions: true
 
       - task: DotNetCoreCLI@2
         displayName: 'Publish Server'

.ci/azure-pipelines-package.yml

@@ -39,6 +39,10 @@ jobs:
     vmImage: 'ubuntu-latest'
 
   steps:
+  - script: echo "##vso[task.setvariable variable=JellyfinVersion]$( awk -F '/' '{ print $NF }' <<<'$(Build.SourceBranch)' | sed 's/^v//' )"
+    displayName: Set release version (stable)
+    condition: startsWith(variables['Build.SourceBranch'], 'refs/tags/v')
+
   - script: 'docker build -f deployment/Dockerfile.$(BuildConfiguration) -t jellyfin-server-$(BuildConfiguration) deployment'
     displayName: 'Build Dockerfile'
 
@@ -80,6 +84,10 @@ jobs:
     vmImage: 'ubuntu-latest'
 
   steps:
+  - script: echo "##vso[task.setvariable variable=JellyfinVersion]$( awk -F '/' '{ print $NF }' <<<'$(Build.SourceBranch)' | sed 's/^v//' )"
+    displayName: Set release version (stable)
+    condition: startsWith(variables['Build.SourceBranch'], 'refs/tags/v')
+
   - task: DownloadPipelineArtifact@2
     displayName: 'Download OpenAPI Spec'
     inputs:
@@ -181,7 +189,7 @@ jobs:
     inputs:
       sshEndpoint: repository
       runOptions: 'commands'
-      commands: nohup sudo /srv/repository/collect-server.azure.sh /srv/repository/incoming/azure $(Build.BuildNumber) &
+      commands: nohup sudo /srv/repository/collect-server.azure.sh /srv/repository/incoming/azure $(Build.BuildNumber) $(Build.SourceBranch) &
 
 - job: PublishNuget
   displayName: 'Publish NuGet packages'
@@ -199,7 +207,6 @@ jobs:
     inputs:
       packageType: 'sdk'
       version: '6.0.x'
-      includePreviewVersions: true
 
   - task: DotNetCoreCLI@2
     displayName: 'Build Stable Nuget packages'
@@ -212,6 +219,7 @@ jobs:
         MediaBrowser.Controller/MediaBrowser.Controller.csproj
         MediaBrowser.Model/MediaBrowser.Model.csproj
         Emby.Naming/Emby.Naming.csproj
+        src/Jellyfin.Extensions/Jellyfin.Extensions.csproj
       custom: 'pack'
       arguments: -o $(Build.ArtifactStagingDirectory) -p:Version=$(JellyfinVersion)
 
@@ -226,6 +234,7 @@ jobs:
         MediaBrowser.Controller/MediaBrowser.Controller.csproj
         MediaBrowser.Model/MediaBrowser.Model.csproj
         Emby.Naming/Emby.Naming.csproj
+        src/Jellyfin.Extensions/Jellyfin.Extensions.csproj
       custom: 'pack'
       arguments: '--version-suffix $(Build.BuildNumber) -o $(Build.ArtifactStagingDirectory) -p:Stability=Unstable'
 

.ci/azure-pipelines-test.yml

@@ -41,7 +41,6 @@ jobs:
         inputs:
           packageType: sdk
           version: ${{ parameters.DotNetSdkVersion }}
-          includePreviewVersions: true
 
       - task: SonarCloudPrepare@1
         displayName: 'Prepare analysis on SonarCloud'

.copr

@@ -0,0 +1 @@
+fedora

.copr/Makefile

@@ -1 +0,0 @@
-../fedora/Makefile

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,51 +0,0 @@
----
-name: Bug report
-about: Create a bug report
-title: ''
-labels: bug
-assignees: ''
-
----
-
-**Describe the bug**
-<!-- A clear and concise description of what the bug is. -->
-
-**System (please complete the following information):**
- - OS: [e.g. Debian, Windows]
- - Virtualization: [e.g. Docker, KVM, LXC]
- - Clients: [Browser, Android, Fire Stick, etc.]
- - Browser: [e.g. Firefox 91, Chrome 93, Safari 13]
- - Jellyfin Version: [e.g. 10.7.6, unstable 20191231]
- - FFmpeg Version: [e.g. 4.3.2-Jellyfin]
- - Playback: [Direct Play, Remux, Direct Stream, Transcode] 
- - Hardware Acceleration: [e.g. none, VAAPI, NVENC, etc.]
- - Installed Plugins: [e.g. none, Fanart, Anime, etc.]
- - Reverse Proxy: [e.g. none, nginx, apache, etc.]
- - Base URL: [e.g. none, yes: /example]
- - Networking: [e.g. Host, Bridge/NAT]
- - Storage: [e.g. local, NFS, cloud]
-
-**To Reproduce**
-<!-- Steps to reproduce the behavior: -->
-1. Go to '...'
-2. Click on '....'
-3. Scroll down to '....'
-4. See error
-
-**Expected behavior**
-<!-- A clear and concise description of what you expected to happen. -->
-
-**Server Logs**
-<!-- Please paste any log errors. -->
-
-**FFmpeg Logs**
-<!-- Please paste any log errors. -->
-
-**Browser Console Logs**
-<!-- Please paste any log errors. -->
-
-**Screenshots**
-<!-- If applicable, add screenshots to help explain your problem. -->
-
-**Additional context**
-<!-- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/issue report.yml

@@ -0,0 +1,106 @@
+name: Issue Report
+description: File an issue report
+title: "[Issue]: "
+labels: [bug, triage]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report! Please provide as much detail as necessary, most questions may not be applicable to you. If you need real-time help, join us on [Matrix](https://matrix.to/#/#jellyfin-troubleshooting:matrix.org) or [Discord](https://discord.gg/zHBxVSXdBV).
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: Please describe your bug
+      description: Also tell us, what did you expect to happen?
+      placeholder: |
+        The more information that you are able to provide, the better. Did you do anything before this happened? Did you upgrade or change anything? Any screenshots or logs you can provide will be helpful.
+
+        This is my issue.
+
+        Steps to Reproduce
+          1. In this environment...
+          2. With this config...
+          3. Run '...'
+          4. See error...
+    validations:
+      required: true
+  - type: dropdown
+    id: version
+    attributes:
+      label: Jellyfin Version
+      description: What version of Jellyfin are you running?
+      options:
+        - 10.7.7
+        - 10.7.z
+        - 10.6.4
+        - Other
+    validations:
+      required: true
+  - type: input
+    id: version-other
+    attributes:
+      label: "if other:"
+      placeholder: Other
+  - type: textarea
+    attributes:
+      label: Environment
+      description: |
+        Examples:
+        - **OS**: [e.g. Debian, Windows]
+        - **Virtualization**: [e.g. Docker, KVM, LXC]
+        - **Clients**: [Browser, Android, Fire Stick, etc.]
+        - **Browser**: [e.g. Firefox 91, Chrome 93, Safari 13]
+        - **FFmpeg Version**: [e.g. 4.3.2-Jellyfin]
+        - **Playback**: [Direct Play, Remux, Direct Stream, Transcode]
+        - **Hardware Acceleration**: [e.g. none, VAAPI, NVENC, etc.]
+        - **Installed Plugins**: [e.g. none, Fanart, Anime, etc.]
+        - **Reverse Proxy**: [e.g. none, nginx, apache, etc.]
+        - **Base URL**: [e.g. none, yes: /example]
+        - **Networking**: [e.g. Host, Bridge/NAT]
+        - **Storage**: [e.g. local, NFS, cloud]
+      value: |
+        - OS:
+        - Virtualization:
+        - Clients:
+        - Browser:
+        - FFmpeg Version:
+        - Playback Method:
+        - Hardware Acceleration:
+        - Plugins:
+        - Reverse Proxy:
+        - Base URL:
+        - Networking:
+        - Storage:
+      render: markdown
+  - type: textarea
+    id: logs
+    attributes:
+      label: Jellyfin logs
+      description: Please copy and paste any relevant log output. This can be found in Dashboard > Logs.
+      placeholder: For playback issues, browser/client and FFmpeg logs may be more useful.
+      render: shell
+  - type: textarea
+    id: ffmpeg-logs
+    attributes:
+      label: FFmpeg logs
+      description: Please copy and paste any relevant log output. This can be found in Dashboard > Logs.
+      placeholder: It's important to include the specific codec details. If no FFmpeg logs appear, the file was Direct Played and did not use FFmpeg.
+      render: shell
+  - type: textarea
+    id: browserlogs
+    attributes:
+      label: Please attach any browser or client logs here
+      placeholder: Access browser logs by using the F12 to bring up the console. Screenshots are typically easier to read than raw logs. For clients such as Android or iOS, please see our documentation.
+  - type: textarea
+    id: screenshots
+    attributes:
+      label: Please attach any screenshots here
+      placeholder: Images can be pasted directly into the textbox and will be hosted by github.
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Code of Conduct
+      description: By submitting this issue, you agree to follow our [Code of Conduct](https://jellyfin.org/docs/general/community-standards.html#code-of-conduct)
+      options:
+        - label: I agree to follow this project's Code of Conduct
+          required: true

.github/workflows/codeql-analysis.yml

@@ -25,8 +25,7 @@ jobs:
       uses: actions/setup-dotnet@v1
       with:
         dotnet-version: '6.0.x'
-        include-prerelease: true
-        
+
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v1
       with:

.github/workflows/openapi.yml

@@ -0,0 +1,124 @@
+name: OpenAPI
+on:
+  push:
+    branches:
+      - master
+  pull_request_target:
+
+jobs:
+  openapi-head:
+    name: OpenAPI - HEAD
+    runs-on: ubuntu-latest
+    permissions: read-all
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: '6.0.x'
+      - name: Generate openapi.json
+        run: dotnet test tests/Jellyfin.Server.Integration.Tests/Jellyfin.Server.Integration.Tests.csproj -c Release --filter "Jellyfin.Server.Integration.Tests.OpenApiSpecTests"
+      - name: Upload openapi.json
+        uses: actions/upload-artifact@v2
+        with:
+          name: openapi-head
+          retention-days: 14
+          if-no-files-found: error
+          path: tests/Jellyfin.Server.Integration.Tests/bin/Release/net6.0/openapi.json
+
+  openapi-base:
+    name: OpenAPI - BASE
+    if: ${{ github.base_ref != '' }}
+    runs-on: ubuntu-latest
+    permissions: read-all
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.base_ref }}
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: '6.0.x'
+      - name: Generate openapi.json
+        run: dotnet test tests/Jellyfin.Server.Integration.Tests/Jellyfin.Server.Integration.Tests.csproj -c Release --filter "Jellyfin.Server.Integration.Tests.OpenApiSpecTests"
+      - name: Upload openapi.json
+        uses: actions/upload-artifact@v2
+        with:
+          name: openapi-base
+          retention-days: 14
+          if-no-files-found: error
+          path: tests/Jellyfin.Server.Integration.Tests/bin/Release/net6.0/openapi.json
+
+  openapi-diff:
+    name: OpenAPI - Difference
+    if: ${{ github.event_name == 'pull_request_target' }}
+    runs-on: ubuntu-latest
+    needs:
+      - openapi-head
+      - openapi-base
+    steps:
+      - name: Download openapi-head
+        uses: actions/download-artifact@v2
+        with:
+          name: openapi-head
+          path: openapi-head
+      - name: Download openapi-base
+        uses: actions/download-artifact@v2
+        with:
+          name: openapi-base
+          path: openapi-base
+      - name: Workaround openapi-diff issue
+        run: |
+          sed -i 's/"allOf"/"oneOf"/g' openapi-head/openapi.json
+          sed -i 's/"allOf"/"oneOf"/g' openapi-base/openapi.json
+      - name: Calculate OpenAPI difference
+        uses: docker://openapitools/openapi-diff
+        continue-on-error: true
+        with:
+          args: --fail-on-changed --markdown openapi-changes.md openapi-base/openapi.json openapi-head/openapi.json
+      - id: read-diff
+        name: Read openapi-diff output
+        run: |
+          body=$(cat openapi-changes.md)
+          body="${body//'%'/'%25'}"
+          body="${body//$'\n'/'%0A'}"
+          body="${body//$'\r'/'%0D'}"
+          echo ::set-output name=body::$body
+      - name: Find difference comment
+        uses: peter-evans/find-comment@v1
+        id: find-comment
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          direction: last
+          body-includes: openapi-diff-workflow-comment
+      - name: Reply or edit difference comment (changed)
+        uses: peter-evans/create-or-update-comment@v1.4.5
+        if: ${{ steps.read-diff.outputs.body != '' }}
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          comment-id: ${{ steps.find-comment.outputs.comment-id }}
+          edit-mode: replace
+          body: |
+            <!--openapi-diff-workflow-comment-->
+            <details>
+            <summary>Changes in OpenAPI specification found. Expand to see details.</summary>
+
+            ${{ steps.read-diff.outputs.body }}
+
+            </details>
+      - name: Edit difference comment (unchanged)
+        uses: peter-evans/create-or-update-comment@v1.4.5
+        if: ${{ steps.read-diff.outputs.body == '' && steps.find-comment.outputs.comment-id != '' }}
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          comment-id: ${{ steps.find-comment.outputs.comment-id }}
+          edit-mode: replace
+          body: |
+            <!--openapi-diff-workflow-comment-->
+
+            No changes to OpenAPI specification found. See history of this comment for previous changes.

.vscode/launch.json

@@ -6,7 +6,7 @@
             "type": "coreclr",
             "request": "launch",
             "preLaunchTask": "build",
-            "program": "${workspaceFolder}/Jellyfin.Server/bin/Debug/net5.0/jellyfin.dll",
+            "program": "${workspaceFolder}/Jellyfin.Server/bin/Debug/net6.0/jellyfin.dll",
             "args": [],
             "cwd": "${workspaceFolder}/Jellyfin.Server",
             "console": "internalConsole",
@@ -22,7 +22,7 @@
             "type": "coreclr",
             "request": "launch",
             "preLaunchTask": "build",
-            "program": "${workspaceFolder}/Jellyfin.Server/bin/Debug/net5.0/jellyfin.dll",
+            "program": "${workspaceFolder}/Jellyfin.Server/bin/Debug/net6.0/jellyfin.dll",
             "args": ["--nowebclient"],
             "cwd": "${workspaceFolder}/Jellyfin.Server",
             "console": "internalConsole",

CONTRIBUTORS.md

@@ -149,6 +149,8 @@
  - [skyfrk](https://github.com/skyfrk)
  - [ianjazz246](https://github.com/ianjazz246)
  - [peterspenler](https://github.com/peterspenler)
+ - [MBR-0001](https://github.com/MBR-0001)
+ - [jonas-resch](https://github.com/jonas-resch)
 
 # Emby Contributors
 

Directory.Build.props

@@ -3,10 +3,13 @@
 
   <PropertyGroup>
     <Nullable>enable</Nullable>
-    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <CodeAnalysisRuleSet>$(MSBuildThisFileDirectory)/jellyfin.ruleset</CodeAnalysisRuleSet>
   </PropertyGroup>
 
+  <PropertyGroup>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+  </PropertyGroup>
+
   <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
     <AnalysisMode>AllEnabledByDefault</AnalysisMode>
   </PropertyGroup>

Dockerfile

@@ -12,7 +12,7 @@ RUN apk add curl git zlib zlib-dev autoconf g++ make libpng-dev gifsicle alpine-
  && npm ci --no-audit --unsafe-perm \
  && mv dist /dist
 
-FROM debian:bullseye-slim as app
+FROM debian:stable-slim as app
 
 # https://askubuntu.com/questions/972516/debian-frontend-environment-variable
 ARG DEBIAN_FRONTEND="noninteractive"
@@ -29,8 +29,9 @@ ARG LEVEL_ZERO_VERSION=1.2.20826
 
 # Install dependencies:
 # mesa-va-drivers: needed for AMD VAAPI. Mesa >= 20.1 is required for HEVC transcoding.
+# curl: healthcheck
 RUN apt-get update \
- && apt-get install --no-install-recommends --no-install-suggests -y ca-certificates gnupg wget apt-transport-https \
+ && apt-get install --no-install-recommends --no-install-suggests -y ca-certificates gnupg wget apt-transport-https curl \
  && wget -O - https://repo.jellyfin.org/jellyfin_team.gpg.key | apt-key add - \
  && echo "deb [arch=$( dpkg --print-architecture )] https://repo.jellyfin.org/$( awk -F'=' '/^ID=/{ print $NF }' /etc/os-release ) $( awk -F'=' '/^VERSION_CODENAME=/{ print $NF }' /etc/os-release ) main" | tee /etc/apt/sources.list.d/jellyfin.list \
  && apt-get update \
@@ -61,7 +62,7 @@ RUN apt-get update \
  && chmod 777 /cache /config /media \
  && sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && locale-gen
 
-ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1
+# ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1
 ENV LC_ALL en_US.UTF-8
 ENV LANG en_US.UTF-8
 ENV LANGUAGE en_US:en
@@ -76,6 +77,8 @@ RUN dotnet publish Jellyfin.Server --disable-parallel --configuration Release --
 
 FROM app
 
+ENV HEALTHCHECK_URL=http://localhost:8096/health
+
 COPY --from=builder /jellyfin /jellyfin
 COPY --from=web-builder /dist /jellyfin/jellyfin-web
 
@@ -85,3 +88,6 @@ ENTRYPOINT ["./jellyfin/jellyfin", \
     "--datadir", "/config", \
     "--cachedir", "/cache", \
     "--ffmpeg", "/usr/lib/jellyfin-ffmpeg/ffmpeg"]
+
+HEALTHCHECK --interval=30s --timeout=30s --start-period=10s --retries=3 \
+     CMD curl -Lk "${HEALTHCHECK_URL}" || exit 1

Dockerfile.arm

@@ -14,7 +14,7 @@ RUN apk add curl git zlib zlib-dev autoconf g++ make libpng-dev gifsicle alpine-
  && mv dist /dist
 
 FROM multiarch/qemu-user-static:x86_64-arm as qemu
-FROM arm32v7/debian:bullseye-slim as app
+FROM arm32v7/debian:stable-slim as app
 
 # https://askubuntu.com/questions/972516/debian-frontend-environment-variable
 ARG DEBIAN_FRONTEND="noninteractive"
@@ -24,6 +24,8 @@ ARG APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=DontWarn
 ENV NVIDIA_DRIVER_CAPABILITIES="compute,video,utility"
 
 COPY --from=qemu /usr/bin/qemu-arm-static /usr/bin
+
+# curl: setup & healthcheck
 RUN apt-get update \
  && apt-get install --no-install-recommends --no-install-suggests -y ca-certificates gnupg curl && \
  curl -ks https://repo.jellyfin.org/debian/jellyfin_team.gpg.key | apt-key add - && \
@@ -42,7 +44,7 @@ RUN apt-get update \
  vainfo \
  libva2 \
  locales \
- && apt-get remove curl gnupg -y \
+ && apt-get remove gnupg -y \
  && apt-get clean autoclean -y \
  && apt-get autoremove -y \
  && rm -rf /var/lib/apt/lists/* \
@@ -50,7 +52,7 @@ RUN apt-get update \
  && chmod 777 /cache /config /media \
  && sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && locale-gen
 
-ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1
+# ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1
 ENV LC_ALL en_US.UTF-8
 ENV LANG en_US.UTF-8
 ENV LANGUAGE en_US:en
@@ -66,6 +68,8 @@ RUN dotnet publish Jellyfin.Server --configuration Release --output="/jellyfin"
 
 FROM app
 
+ENV HEALTHCHECK_URL=http://localhost:8096/health
+
 COPY --from=builder /jellyfin /jellyfin
 COPY --from=web-builder /dist /jellyfin/jellyfin-web
 
@@ -75,3 +79,6 @@ ENTRYPOINT ["./jellyfin/jellyfin", \
     "--datadir", "/config", \
     "--cachedir", "/cache", \
     "--ffmpeg", "/usr/lib/jellyfin-ffmpeg/ffmpeg"]
+
+HEALTHCHECK --interval=30s --timeout=30s --start-period=10s --retries=3 \
+     CMD curl -Lk "${HEALTHCHECK_URL}" || exit 1

Dockerfile.arm64

@@ -14,7 +14,7 @@ RUN apk add curl git zlib zlib-dev autoconf g++ make libpng-dev gifsicle alpine-
  && mv dist /dist
 
 FROM multiarch/qemu-user-static:x86_64-aarch64 as qemu
-FROM arm64v8/debian:bullseye-slim as app
+FROM arm64v8/debian:stable-slim as app
 
 # https://askubuntu.com/questions/972516/debian-frontend-environment-variable
 ARG DEBIAN_FRONTEND="noninteractive"
@@ -24,6 +24,8 @@ ARG APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=DontWarn
 ENV NVIDIA_DRIVER_CAPABILITIES="compute,video,utility"
 
 COPY --from=qemu /usr/bin/qemu-aarch64-static /usr/bin
+
+# curl: healcheck
 RUN apt-get update && apt-get install --no-install-recommends --no-install-suggests -y \
  ffmpeg \
  libssl-dev \
@@ -33,6 +35,7 @@ RUN apt-get update && apt-get install --no-install-recommends --no-install-sugge
  libomxil-bellagio0 \
  libomxil-bellagio-bin \
  locales \
+ curl \
  && apt-get clean autoclean -y \
  && apt-get autoremove -y \
  && rm -rf /var/lib/apt/lists/* \
@@ -40,7 +43,7 @@ RUN apt-get update && apt-get install --no-install-recommends --no-install-sugge
  && chmod 777 /cache /config /media \
  && sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && locale-gen
 
-ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1
+# ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1
 ENV LC_ALL en_US.UTF-8
 ENV LANG en_US.UTF-8
 ENV LANGUAGE en_US:en
@@ -56,6 +59,8 @@ RUN dotnet publish Jellyfin.Server --configuration Release --output="/jellyfin"
 
 FROM app
 
+ENV HEALTHCHECK_URL=http://localhost:8096/health
+
 COPY --from=builder /jellyfin /jellyfin
 COPY --from=web-builder /dist /jellyfin/jellyfin-web
 
@@ -65,3 +70,6 @@ ENTRYPOINT ["./jellyfin/jellyfin", \
     "--datadir", "/config", \
     "--cachedir", "/cache", \
     "--ffmpeg", "/usr/bin/ffmpeg"]
+
+HEALTHCHECK --interval=30s --timeout=30s --start-period=10s --retries=3 \
+     CMD curl -Lk "${HEALTHCHECK_URL}" || exit 1

Emby.Dlna/ContentDirectory/ServerItem.cs

@@ -1,5 +1,3 @@
-#pragma warning disable CS1591
-
 using MediaBrowser.Controller.Entities;
 
 namespace Emby.Dlna.ContentDirectory
@@ -13,24 +11,29 @@ namespace Emby.Dlna.ContentDirectory
         /// Initializes a new instance of the <see cref="ServerItem"/> class.
         /// </summary>
         /// <param name="item">The <see cref="BaseItem"/>.</param>
-        public ServerItem(BaseItem item)
+        /// <param name="stubType">The stub type.</param>
+        public ServerItem(BaseItem item, StubType? stubType)
         {
             Item = item;
 
-            if (item is IItemByName && item is not Folder)
+            if (stubType.HasValue)
+            {
+                StubType = stubType;
+            }
+            else if (item is IItemByName and not Folder)
             {
                 StubType = Dlna.ContentDirectory.StubType.Folder;
             }
         }
 
         /// <summary>
-        /// Gets or sets the underlying base item.
+        /// Gets the underlying base item.
         /// </summary>
-        public BaseItem Item { get; set; }
+        public BaseItem Item { get; }
 
         /// <summary>
-        /// Gets or sets the DLNA item type.
+        /// Gets the DLNA item type.
         /// </summary>
-        public StubType? StubType { get; set; }
+        public StubType? StubType { get; }
     }
 }

Emby.Dlna/Didl/DidlBuilder.cs

@@ -41,8 +41,6 @@ namespace Emby.Dlna.Didl
         private const string NsUpnp = "urn:schemas-upnp-org:metadata-1-0/upnp/";
         private const string NsDlna = "urn:schemas-dlna-org:metadata-1-0/";
 
-        private readonly CultureInfo _usCulture = new CultureInfo("en-US");
-
         private readonly DeviceProfile _profile;
         private readonly IImageProcessor _imageProcessor;
         private readonly string _serverAddress;
@@ -317,7 +315,7 @@ namespace Emby.Dlna.Didl
 
             if (mediaSource.RunTimeTicks.HasValue)
             {
-                writer.WriteAttributeString("duration", TimeSpan.FromTicks(mediaSource.RunTimeTicks.Value).ToString("c", _usCulture));
+                writer.WriteAttributeString("duration", TimeSpan.FromTicks(mediaSource.RunTimeTicks.Value).ToString("c", CultureInfo.InvariantCulture));
             }
 
             if (filter.Contains("res@size"))
@@ -328,7 +326,7 @@ namespace Emby.Dlna.Didl
 
                     if (size.HasValue)
                     {
-                        writer.WriteAttributeString("size", size.Value.ToString(_usCulture));
+                        writer.WriteAttributeString("size", size.Value.ToString(CultureInfo.InvariantCulture));
                     }
                 }
             }
@@ -342,7 +340,7 @@ namespace Emby.Dlna.Didl
 
             if (targetChannels.HasValue)
             {
-                writer.WriteAttributeString("nrAudioChannels", targetChannels.Value.ToString(_usCulture));
+                writer.WriteAttributeString("nrAudioChannels", targetChannels.Value.ToString(CultureInfo.InvariantCulture));
             }
 
             if (filter.Contains("res@resolution"))
@@ -361,12 +359,12 @@ namespace Emby.Dlna.Didl
 
             if (targetSampleRate.HasValue)
             {
-                writer.WriteAttributeString("sampleFrequency", targetSampleRate.Value.ToString(_usCulture));
+                writer.WriteAttributeString("sampleFrequency", targetSampleRate.Value.ToString(CultureInfo.InvariantCulture));
             }
 
             if (totalBitrate.HasValue)
             {
-                writer.WriteAttributeString("bitrate", totalBitrate.Value.ToString(_usCulture));
+                writer.WriteAttributeString("bitrate", totalBitrate.Value.ToString(CultureInfo.InvariantCulture));
             }
 
             var mediaProfile = _profile.GetVideoMediaProfile(
@@ -552,7 +550,7 @@ namespace Emby.Dlna.Didl
 
             if (mediaSource.RunTimeTicks.HasValue)
             {
-                writer.WriteAttributeString("duration", TimeSpan.FromTicks(mediaSource.RunTimeTicks.Value).ToString("c", _usCulture));
+                writer.WriteAttributeString("duration", TimeSpan.FromTicks(mediaSource.RunTimeTicks.Value).ToString("c", CultureInfo.InvariantCulture));
             }
 
             if (filter.Contains("res@size"))
@@ -563,7 +561,7 @@ namespace Emby.Dlna.Didl
 
                     if (size.HasValue)
                     {
-                        writer.WriteAttributeString("size", size.Value.ToString(_usCulture));
+                        writer.WriteAttributeString("size", size.Value.ToString(CultureInfo.InvariantCulture));
                     }
                 }
             }
@@ -575,17 +573,17 @@ namespace Emby.Dlna.Didl
 
             if (targetChannels.HasValue)
             {
-                writer.WriteAttributeString("nrAudioChannels", targetChannels.Value.ToString(_usCulture));
+                writer.WriteAttributeString("nrAudioChannels", targetChannels.Value.ToString(CultureInfo.InvariantCulture));
             }
 
             if (targetSampleRate.HasValue)
             {
-                writer.WriteAttributeString("sampleFrequency", targetSampleRate.Value.ToString(_usCulture));
+                writer.WriteAttributeString("sampleFrequency", targetSampleRate.Value.ToString(CultureInfo.InvariantCulture));
             }
 
             if (targetAudioBitrate.HasValue)
             {
-                writer.WriteAttributeString("bitrate", targetAudioBitrate.Value.ToString(_usCulture));
+                writer.WriteAttributeString("bitrate", targetAudioBitrate.Value.ToString(CultureInfo.InvariantCulture));
             }
 
             var mediaProfile = _profile.GetAudioMediaProfile(
@@ -639,7 +637,7 @@ namespace Emby.Dlna.Didl
 
             writer.WriteAttributeString("restricted", "1");
             writer.WriteAttributeString("searchable", "1");
-            writer.WriteAttributeString("childCount", childCount.ToString(_usCulture));
+            writer.WriteAttributeString("childCount", childCount.ToString(CultureInfo.InvariantCulture));
 
             var clientId = GetClientId(folder, stubType);
 
@@ -731,7 +729,7 @@ namespace Emby.Dlna.Didl
             {
                 if (item.PremiereDate.HasValue)
                 {
-                    AddValue(writer, "dc", "date", item.PremiereDate.Value.ToString("o", CultureInfo.InvariantCulture), NsDc);
+                    AddValue(writer, "dc", "date", item.PremiereDate.Value.ToString("yyyy-MM-dd", CultureInfo.InvariantCulture), NsDc);
                 }
             }
 
@@ -931,11 +929,11 @@ namespace Emby.Dlna.Didl
 
             if (item.IndexNumber.HasValue)
             {
-                AddValue(writer, "upnp", "originalTrackNumber", item.IndexNumber.Value.ToString(_usCulture), NsUpnp);
+                AddValue(writer, "upnp", "originalTrackNumber", item.IndexNumber.Value.ToString(CultureInfo.InvariantCulture), NsUpnp);
 
                 if (item is Episode)
                 {
-                    AddValue(writer, "upnp", "episodeNumber", item.IndexNumber.Value.ToString(_usCulture), NsUpnp);
+                    AddValue(writer, "upnp", "episodeNumber", item.IndexNumber.Value.ToString(CultureInfo.InvariantCulture), NsUpnp);
                 }
             }
         }
@@ -991,7 +989,7 @@ namespace Emby.Dlna.Didl
                 writer.WriteAttributeString("dlna", "profileID", NsDlna, _profile.AlbumArtPn);
             }
 
-            writer.WriteString(albumArtUrlInfo.url);
+            writer.WriteString(albumArtUrlInfo.Url);
             writer.WriteFullEndElement();
 
             // TODO: Remove these default values
@@ -1000,7 +998,7 @@ namespace Emby.Dlna.Didl
                 _profile.MaxIconWidth ?? 48,
                 _profile.MaxIconHeight ?? 48,
                 "jpg");
-            writer.WriteElementString("upnp", "icon", NsUpnp, iconUrlInfo.url);
+            writer.WriteElementString("upnp", "icon", NsUpnp, iconUrlInfo.Url);
 
             if (!_profile.EnableAlbumArtInDidl)
             {
@@ -1047,8 +1045,8 @@ namespace Emby.Dlna.Didl
 
             // Images must have a reported size or many clients (Bubble upnp), will only use the first thumbnail
             // rather than using a larger one when available
-            var width = albumartUrlInfo.width ?? maxWidth;
-            var height = albumartUrlInfo.height ?? maxHeight;
+            var width = albumartUrlInfo.Width ?? maxWidth;
+            var height = albumartUrlInfo.Height ?? maxHeight;
 
             var contentFeatures = ContentFeatureBuilder.BuildImageHeader(_profile, format, width, height, imageInfo.IsDirectStream, org_Pn);
 
@@ -1064,7 +1062,7 @@ namespace Emby.Dlna.Didl
                 "resolution",
                 string.Format(CultureInfo.InvariantCulture, "{0}x{1}", width, height));
 
-            writer.WriteString(albumartUrlInfo.url);
+            writer.WriteString(albumartUrlInfo.Url);
 
             writer.WriteFullEndElement();
         }
@@ -1202,7 +1200,7 @@ namespace Emby.Dlna.Didl
             return id;
         }
 
-        private (string url, int? width, int? height) GetImageUrl(ImageDownloadInfo info, int maxWidth, int maxHeight, string format)
+        private (string Url, int? Width, int? Height) GetImageUrl(ImageDownloadInfo info, int maxWidth, int maxHeight, string format)
         {
             var url = string.Format(
                 CultureInfo.InvariantCulture,

Emby.Dlna/Didl/Filter.cs

@@ -17,8 +17,7 @@ namespace Emby.Dlna.Didl
         public Filter(string filter)
         {
             _all = string.Equals(filter, "*", StringComparison.OrdinalIgnoreCase);
-
-            _fields = (filter ?? string.Empty).Split(',', StringSplitOptions.RemoveEmptyEntries);
+            _fields = filter.Split(',', StringSplitOptions.RemoveEmptyEntries);
         }
 
         public bool Contains(string field)

Emby.Dlna/DlnaManager.cs

@@ -5,7 +5,6 @@ using System.Globalization;
 using System.IO;
 using System.Linq;
 using System.Reflection;
-using System.Text;
 using System.Text.Json;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
@@ -84,8 +83,7 @@ namespace Emby.Dlna
         {
             lock (_profiles)
             {
-                var list = _profiles.Values.ToList();
-                return list
+                return _profiles.Values
                     .OrderBy(i => i.Item1.Info.Type == DeviceProfileType.User ? 0 : 1)
                     .ThenBy(i => i.Item1.Info.Name)
                     .Select(i => i.Item2)
@@ -112,7 +110,7 @@ namespace Emby.Dlna
 
             if (profile == null)
             {
-                LogUnmatchedProfile(deviceInfo);
+                _logger.LogInformation("No matching device profile found. The default will need to be used. \n{@Profile}", deviceInfo);
             }
             else
             {
@@ -122,23 +120,6 @@ namespace Emby.Dlna
             return profile;
         }
 
-        private void LogUnmatchedProfile(DeviceIdentification profile)
-        {
-            var builder = new StringBuilder();
-
-            builder.AppendLine("No matching device profile found. The default will need to be used.");
-            builder.Append("FriendlyName: ").AppendLine(profile.FriendlyName);
-            builder.Append("Manufacturer: ").AppendLine(profile.Manufacturer);
-            builder.Append("ManufacturerUrl: ").AppendLine(profile.ManufacturerUrl);
-            builder.Append("ModelDescription: ").AppendLine(profile.ModelDescription);
-            builder.Append("ModelName: ").AppendLine(profile.ModelName);
-            builder.Append("ModelNumber: ").AppendLine(profile.ModelNumber);
-            builder.Append("ModelUrl: ").AppendLine(profile.ModelUrl);
-            builder.Append("SerialNumber: ").AppendLine(profile.SerialNumber);
-
-            _logger.LogInformation(builder.ToString());
-        }
-
         /// <summary>
         /// Attempts to match a device with a profile.
         /// Rules:
@@ -244,11 +225,8 @@ namespace Emby.Dlna
         {
             try
             {
-                var xmlFies = _fileSystem.GetFilePaths(path)
+                return _fileSystem.GetFilePaths(path)
                     .Where(i => string.Equals(Path.GetExtension(i), ".xml", StringComparison.OrdinalIgnoreCase))
-                    .ToList();
-
-                return xmlFies
                     .Select(i => ParseProfileFile(i, type))
                     .Where(i => i != null)
                     .ToList()!; // We just filtered out all the nulls
@@ -270,11 +248,8 @@ namespace Emby.Dlna
 
                 try
                 {
-                    DeviceProfile profile;
-
                     var tempProfile = (DeviceProfile)_xmlSerializer.DeserializeFromFile(typeof(DeviceProfile), path);
-
-                    profile = ReserializeProfile(tempProfile);
+                    var profile = ReserializeProfile(tempProfile);
 
                     profile.Id = path.ToLowerInvariant().GetMD5().ToString("N", CultureInfo.InvariantCulture);
 
@@ -313,8 +288,7 @@ namespace Emby.Dlna
         {
             lock (_profiles)
             {
-                var list = _profiles.Values.ToList();
-                return list
+                return _profiles.Values
                     .Select(i => i.Item1)
                     .OrderBy(i => i.Info.Type == DeviceProfileType.User ? 0 : 1)
                     .ThenBy(i => i.Info.Name);
@@ -359,14 +333,17 @@ namespace Emby.Dlna
                 // The stream should exist as we just got its name from GetManifestResourceNames
                 using (var stream = _assembly.GetManifestResourceStream(name)!)
                 {
+                    var length = stream.Length;
                     var fileInfo = _fileSystem.GetFileInfo(path);
 
-                    if (!fileInfo.Exists || fileInfo.Length != stream.Length)
+                    if (!fileInfo.Exists || fileInfo.Length != length)
                     {
                         Directory.CreateDirectory(systemProfilesPath);
 
-                        // use FileShare.None as this bypasses dotnet bug dotnet/runtime#42790 .
-                        using (var fileStream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None, IODefaults.FileStreamBufferSize, FileOptions.Asynchronous))
+                        var fileOptions = AsyncFile.WriteOptions;
+                        fileOptions.Mode = FileMode.Create;
+                        fileOptions.PreallocationSize = length;
+                        using (var fileStream = new FileStream(path, fileOptions))
                         {
                             await stream.CopyToAsync(fileStream).ConfigureAwait(false);
                         }
@@ -413,7 +390,7 @@ namespace Emby.Dlna
         }
 
         /// <inheritdoc />
-        public void UpdateProfile(DeviceProfile profile)
+        public void UpdateProfile(string profileId, DeviceProfile profile)
         {
             profile = ReserializeProfile(profile);
 
@@ -427,7 +404,7 @@ namespace Emby.Dlna
                 throw new ArgumentException("Profile is missing Name");
             }
 
-            var current = GetProfileInfosInternal().First(i => string.Equals(i.Info.Id, profile.Id, StringComparison.OrdinalIgnoreCase));
+            var current = GetProfileInfosInternal().First(i => string.Equals(i.Info.Id, profileId, StringComparison.OrdinalIgnoreCase));
 
             var newFilename = _fileSystem.GetValidFilename(profile.Name) + ".xml";
             var path = Path.Combine(UserProfilesPath, newFilename);

Emby.Dlna/Emby.Dlna.csproj

@@ -20,13 +20,16 @@
     <TargetFramework>net6.0</TargetFramework>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
-    <AnalysisMode>AllDisabledByDefault</AnalysisMode>
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
   </PropertyGroup>
 
   <!-- Code Analyzers-->
   <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
     <PackageReference Include="SerilogAnalyzer" Version="0.15.0" PrivateAssets="All" />
-    <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="All" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.376" PrivateAssets="All" />
     <PackageReference Include="SmartAnalyzers.MultithreadingAnalyzer" Version="1.1.31" PrivateAssets="All" />
   </ItemGroup>
 
@@ -73,7 +76,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Http" Version="5.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Http" Version="6.0.0" />
   </ItemGroup>
 
 </Project>

Emby.Dlna/Eventing/DlnaEventManager.cs

@@ -26,8 +26,6 @@ namespace Emby.Dlna.Eventing
         private readonly ILogger _logger;
         private readonly IHttpClientFactory _httpClientFactory;
 
-        private readonly CultureInfo _usCulture = new CultureInfo("en-US");
-
         public DlnaEventManager(ILogger logger, IHttpClientFactory httpClientFactory)
         {
             _httpClientFactory = httpClientFactory;
@@ -83,7 +81,7 @@ namespace Emby.Dlna.Eventing
             if (!string.IsNullOrEmpty(header))
             {
                 // Starts with SECOND-
-                if (int.TryParse(header.AsSpan().RightPart('-'), NumberStyles.Integer, _usCulture, out var val))
+                if (int.TryParse(header.AsSpan().RightPart('-'), NumberStyles.Integer, CultureInfo.InvariantCulture, out var val))
                 {
                     return val;
                 }
@@ -106,7 +104,7 @@ namespace Emby.Dlna.Eventing
             var response = new EventSubscriptionResponse(string.Empty, "text/plain");
 
             response.Headers["SID"] = subscriptionId;
-            response.Headers["TIMEOUT"] = string.IsNullOrEmpty(requestedTimeoutString) ? ("SECOND-" + timeoutSeconds.ToString(_usCulture)) : requestedTimeoutString;
+            response.Headers["TIMEOUT"] = string.IsNullOrEmpty(requestedTimeoutString) ? ("SECOND-" + timeoutSeconds.ToString(CultureInfo.InvariantCulture)) : requestedTimeoutString;
 
             return response;
         }
@@ -163,7 +161,7 @@ namespace Emby.Dlna.Eventing
             options.Headers.TryAddWithoutValidation("NT", subscription.NotificationType);
             options.Headers.TryAddWithoutValidation("NTS", "upnp:propchange");
             options.Headers.TryAddWithoutValidation("SID", subscription.Id);
-            options.Headers.TryAddWithoutValidation("SEQ", subscription.TriggerCount.ToString(_usCulture));
+            options.Headers.TryAddWithoutValidation("SEQ", subscription.TriggerCount.ToString(CultureInfo.InvariantCulture));
 
             try
             {

Emby.Dlna/Main/DlnaEntryPoint.cs

@@ -52,7 +52,6 @@ namespace Emby.Dlna.Main
         private readonly ISocketFactory _socketFactory;
         private readonly INetworkManager _networkManager;
         private readonly object _syncLock = new object();
-        private readonly NetworkConfiguration _netConfig;
         private readonly bool _disabled;
 
         private PlayToManager _manager;
@@ -125,8 +124,8 @@ namespace Emby.Dlna.Main
                 config);
             Current = this;
 
-            _netConfig = config.GetConfiguration<NetworkConfiguration>("network");
-            _disabled = appHost.ListenWithHttps && _netConfig.RequireHttps;
+            var netConfig = config.GetConfiguration<NetworkConfiguration>(NetworkConfigurationStore.StoreKey);
+            _disabled = appHost.ListenWithHttps && netConfig.RequireHttps;
 
             if (_disabled && _config.GetDlnaConfiguration().EnableServer)
             {
@@ -219,11 +218,6 @@ namespace Emby.Dlna.Main
             }
         }
 
-        private void LogMessage(string msg)
-        {
-            _logger.LogDebug(msg);
-        }
-
         private void StartDeviceDiscovery(ISsdpCommunicationsServer communicationsServer)
         {
             try
@@ -268,12 +262,11 @@ namespace Emby.Dlna.Main
             {
                 _publisher = new SsdpDevicePublisher(
                     _communicationsServer,
-                    _networkManager,
                     MediaBrowser.Common.System.OperatingSystem.Name,
                     Environment.OSVersion.VersionString,
                     _config.GetDlnaConfiguration().SendOnlyMatchedHost)
                 {
-                    LogFunction = LogMessage,
+                    LogFunction = (msg) => _logger.LogDebug("{Msg}", msg),
                     SupportPnpRootDevice = false
                 };
 
@@ -318,15 +311,9 @@ namespace Emby.Dlna.Main
 
                 var fullService = "urn:schemas-upnp-org:device:MediaServer:1";
 
-                _logger.LogInformation("Registering publisher for {0} on {1}", fullService, address);
+                _logger.LogInformation("Registering publisher for {ResourceName} on {DeviceAddress}", fullService, address);
 
-                var uri = new UriBuilder(_appHost.GetSmartApiUrl(address.Address) + descriptorUri);
-                if (!string.IsNullOrEmpty(_appHost.PublishedServerUrl))
-                {
-                    // DLNA will only work over http, so we must reset to http:// : {port}.
-                    uri.Scheme = "http";
-                    uri.Port = _netConfig.HttpServerPortNumber;
-                }
+                var uri = new UriBuilder(_appHost.GetApiUrlForLocalAccess(false) + descriptorUri);
 
                 var device = new SsdpRootDevice
                 {
@@ -412,7 +399,6 @@ namespace Emby.Dlna.Main
                         _imageProcessor,
                         _deviceDiscovery,
                         _httpClientFactory,
-                        _config,
                         _userDataManager,
                         _localization,
                         _mediaSourceManager,

Emby.Dlna/PlayTo/Device.cs

@@ -20,8 +20,6 @@ namespace Emby.Dlna.PlayTo
 {
     public class Device : IDisposable
     {
-        private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
-
         private readonly IHttpClientFactory _httpClientFactory;
 
         private readonly ILogger _logger;
@@ -640,7 +638,7 @@ namespace Emby.Dlna.PlayTo
                 return;
             }
 
-            Volume = int.Parse(volumeValue, UsCulture);
+            Volume = int.Parse(volumeValue, CultureInfo.InvariantCulture);
 
             if (Volume > 0)
             {
@@ -842,7 +840,7 @@ namespace Emby.Dlna.PlayTo
             if (!string.IsNullOrWhiteSpace(duration)
                 && !string.Equals(duration, "NOT_IMPLEMENTED", StringComparison.OrdinalIgnoreCase))
             {
-                Duration = TimeSpan.Parse(duration, UsCulture);
+                Duration = TimeSpan.Parse(duration, CultureInfo.InvariantCulture);
             }
             else
             {
@@ -854,7 +852,7 @@ namespace Emby.Dlna.PlayTo
 
             if (!string.IsNullOrWhiteSpace(position) && !string.Equals(position, "NOT_IMPLEMENTED", StringComparison.OrdinalIgnoreCase))
             {
-                Position = TimeSpan.Parse(position, UsCulture);
+                Position = TimeSpan.Parse(position, CultureInfo.InvariantCulture);
             }
 
             var track = result.Document.Descendants("TrackMetaData").FirstOrDefault();
@@ -1181,6 +1179,7 @@ namespace Emby.Dlna.PlayTo
             return new Device(deviceProperties, httpClientFactory, logger);
         }
 
+#nullable enable
         private static DeviceIcon CreateIcon(XElement element)
         {
             if (element == null)
@@ -1188,68 +1187,60 @@ namespace Emby.Dlna.PlayTo
                 throw new ArgumentNullException(nameof(element));
             }
 
-            var mimeType = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("mimetype"));
             var width = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("width"));
             var height = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("height"));
-            var depth = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("depth"));
-            var url = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("url"));
 
-            var widthValue = int.Parse(width, NumberStyles.Integer, UsCulture);
-            var heightValue = int.Parse(height, NumberStyles.Integer, UsCulture);
+            _ = int.TryParse(width, NumberStyles.Integer, CultureInfo.InvariantCulture, out var widthValue);
+            _ = int.TryParse(height, NumberStyles.Integer, CultureInfo.InvariantCulture, out var heightValue);
 
             return new DeviceIcon
             {
-                Depth = depth,
+                Depth = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("depth")) ?? string.Empty,
                 Height = heightValue,
-                MimeType = mimeType,
-                Url = url,
+                MimeType = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("mimetype")) ?? string.Empty,
+                Url = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("url")) ?? string.Empty,
                 Width = widthValue
             };
         }
 
         private static DeviceService Create(XElement element)
-        {
-            var type = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("serviceType"));
-            var id = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("serviceId"));
-            var scpdUrl = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("SCPDURL"));
-            var controlURL = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("controlURL"));
-            var eventSubURL = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("eventSubURL"));
-
-            return new DeviceService
-            {
-                ControlUrl = controlURL,
-                EventSubUrl = eventSubURL,
-                ScpdUrl = scpdUrl,
-                ServiceId = id,
-                ServiceType = type
+            => new DeviceService()
+            {
+                ControlUrl = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("controlURL")) ?? string.Empty,
+                EventSubUrl = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("eventSubURL")) ?? string.Empty,
+                ScpdUrl = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("SCPDURL")) ?? string.Empty,
+                ServiceId = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("serviceId")) ?? string.Empty,
+                ServiceType = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("serviceType")) ?? string.Empty
             };
-        }
 
-        private void UpdateMediaInfo(UBaseObject mediaInfo, TransportState state)
+        private void UpdateMediaInfo(UBaseObject? mediaInfo, TransportState state)
         {
             TransportState = state;
 
             var previousMediaInfo = CurrentMediaInfo;
             CurrentMediaInfo = mediaInfo;
 
-            if (previousMediaInfo == null && mediaInfo != null)
+            if (mediaInfo == null)
             {
-                if (state != TransportState.Stopped)
+                if (previousMediaInfo != null)
                 {
-                    OnPlaybackStart(mediaInfo);
+                    OnPlaybackStop(previousMediaInfo);
                 }
             }
-            else if (mediaInfo != null && previousMediaInfo != null && !mediaInfo.Equals(previousMediaInfo))
+            else if (previousMediaInfo == null)
             {
-                OnMediaChanged(previousMediaInfo, mediaInfo);
+                if (state != TransportState.Stopped)
+                {
+                    OnPlaybackStart(mediaInfo);
+                }
             }
-            else if (mediaInfo == null && previousMediaInfo != null)
+            else if (mediaInfo.Equals(previousMediaInfo))
             {
-                OnPlaybackStop(previousMediaInfo);
+                OnPlaybackProgress(mediaInfo);
             }
-            else if (mediaInfo != null && mediaInfo.Equals(previousMediaInfo))
+            else
             {
-                OnPlaybackProgress(mediaInfo);
+                OnMediaChanged(previousMediaInfo, mediaInfo);
             }
         }
 

Emby.Dlna/PlayTo/PlayToController.cs

@@ -30,8 +30,6 @@ namespace Emby.Dlna.PlayTo
 {
     public class PlayToController : ISessionController, IDisposable
     {
-        private static readonly CultureInfo _usCulture = CultureInfo.ReadOnly(new CultureInfo("en-US"));
-
         private readonly SessionInfo _session;
         private readonly ISessionManager _sessionManager;
         private readonly ILibraryManager _libraryManager;
@@ -212,9 +210,9 @@ namespace Emby.Dlna.PlayTo
 
                 var mediaSource = await streamInfo.GetMediaSource(CancellationToken.None).ConfigureAwait(false);
 
-                var duration = mediaSource == null ?
-                    (_device.Duration == null ? (long?)null : _device.Duration.Value.Ticks) :
-                    mediaSource.RunTimeTicks;
+                var duration = mediaSource == null
+                    ? _device.Duration?.Ticks
+                    : mediaSource.RunTimeTicks;
 
                 var playedToCompletion = positionTicks.HasValue && positionTicks.Value == 0;
 
@@ -716,7 +714,7 @@ namespace Emby.Dlna.PlayTo
                 case GeneralCommandType.SetAudioStreamIndex:
                     if (command.Arguments.TryGetValue("Index", out string index))
                     {
-                        if (int.TryParse(index, NumberStyles.Integer, _usCulture, out var val))
+                        if (int.TryParse(index, NumberStyles.Integer, CultureInfo.InvariantCulture, out var val))
                         {
                             return SetAudioStreamIndex(val);
                         }
@@ -728,7 +726,7 @@ namespace Emby.Dlna.PlayTo
                 case GeneralCommandType.SetSubtitleStreamIndex:
                     if (command.Arguments.TryGetValue("Index", out index))
                     {
-                        if (int.TryParse(index, NumberStyles.Integer, _usCulture, out var val))
+                        if (int.TryParse(index, NumberStyles.Integer, CultureInfo.InvariantCulture, out var val))
                         {
                             return SetSubtitleStreamIndex(val);
                         }
@@ -740,7 +738,7 @@ namespace Emby.Dlna.PlayTo
                 case GeneralCommandType.SetVolume:
                     if (command.Arguments.TryGetValue("Volume", out string vol))
                     {
-                        if (int.TryParse(vol, NumberStyles.Integer, _usCulture, out var volume))
+                        if (int.TryParse(vol, NumberStyles.Integer, CultureInfo.InvariantCulture, out var volume))
                         {
                             return _device.SetVolume(volume, cancellationToken);
                         }

Emby.Dlna/PlayTo/PlayToManager.cs

@@ -11,7 +11,6 @@ using System.Threading.Tasks;
 using Jellyfin.Data.Events;
 using MediaBrowser.Common.Extensions;
 using MediaBrowser.Controller;
-using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Dlna;
 using MediaBrowser.Controller.Drawing;
 using MediaBrowser.Controller.Library;
@@ -35,7 +34,6 @@ namespace Emby.Dlna.PlayTo
         private readonly IServerApplicationHost _appHost;
         private readonly IImageProcessor _imageProcessor;
         private readonly IHttpClientFactory _httpClientFactory;
-        private readonly IServerConfigurationManager _config;
         private readonly IUserDataManager _userDataManager;
         private readonly ILocalizationManager _localization;
 
@@ -47,7 +45,7 @@ namespace Emby.Dlna.PlayTo
         private SemaphoreSlim _sessionLock = new SemaphoreSlim(1, 1);
         private CancellationTokenSource _disposeCancellationTokenSource = new CancellationTokenSource();
 
-        public PlayToManager(ILogger logger, ISessionManager sessionManager, ILibraryManager libraryManager, IUserManager userManager, IDlnaManager dlnaManager, IServerApplicationHost appHost, IImageProcessor imageProcessor, IDeviceDiscovery deviceDiscovery, IHttpClientFactory httpClientFactory, IServerConfigurationManager config, IUserDataManager userDataManager, ILocalizationManager localization, IMediaSourceManager mediaSourceManager, IMediaEncoder mediaEncoder)
+        public PlayToManager(ILogger logger, ISessionManager sessionManager, ILibraryManager libraryManager, IUserManager userManager, IDlnaManager dlnaManager, IServerApplicationHost appHost, IImageProcessor imageProcessor, IDeviceDiscovery deviceDiscovery, IHttpClientFactory httpClientFactory, IUserDataManager userDataManager, ILocalizationManager localization, IMediaSourceManager mediaSourceManager, IMediaEncoder mediaEncoder)
         {
             _logger = logger;
             _sessionManager = sessionManager;
@@ -58,7 +56,6 @@ namespace Emby.Dlna.PlayTo
             _imageProcessor = imageProcessor;
             _deviceDiscovery = deviceDiscovery;
             _httpClientFactory = httpClientFactory;
-            _config = config;
             _userDataManager = userDataManager;
             _localization = localization;
             _mediaSourceManager = mediaSourceManager;

Emby.Dlna/PlayTo/SsdpHttpClient.cs

@@ -20,8 +20,6 @@ namespace Emby.Dlna.PlayTo
         private const string USERAGENT = "Microsoft-Windows/6.2 UPnP/1.0 Microsoft-DLNA DLNADOC/1.50";
         private const string FriendlyName = "Jellyfin";
 
-        private readonly CultureInfo _usCulture = new CultureInfo("en-US");
-
         private readonly IHttpClientFactory _httpClientFactory;
 
         public SsdpHttpClient(IHttpClientFactory httpClientFactory)
@@ -80,10 +78,10 @@ namespace Emby.Dlna.PlayTo
         {
             using var options = new HttpRequestMessage(new HttpMethod("SUBSCRIBE"), url);
             options.Headers.UserAgent.ParseAdd(USERAGENT);
-            options.Headers.TryAddWithoutValidation("HOST", ip + ":" + port.ToString(_usCulture));
-            options.Headers.TryAddWithoutValidation("CALLBACK", "<" + localIp + ":" + eventport.ToString(_usCulture) + ">");
+            options.Headers.TryAddWithoutValidation("HOST", ip + ":" + port.ToString(CultureInfo.InvariantCulture));
+            options.Headers.TryAddWithoutValidation("CALLBACK", "<" + localIp + ":" + eventport.ToString(CultureInfo.InvariantCulture) + ">");
             options.Headers.TryAddWithoutValidation("NT", "upnp:event");
-            options.Headers.TryAddWithoutValidation("TIMEOUT", "Second-" + timeOut.ToString(_usCulture));
+            options.Headers.TryAddWithoutValidation("TIMEOUT", "Second-" + timeOut.ToString(CultureInfo.InvariantCulture));
 
             using var response = await _httpClientFactory.CreateClient(NamedClient.Default)
                 .SendAsync(options, HttpCompletionOption.ResponseHeadersRead)

Emby.Dlna/PlayTo/TransportCommands.cs

@@ -175,7 +175,7 @@ namespace Emby.Dlna.PlayTo
                 var sendValue = state.AllowedValues.FirstOrDefault(a => string.Equals(a, commandParameter, StringComparison.OrdinalIgnoreCase)) ??
                     (state.AllowedValues.Count > 0 ? state.AllowedValues[0] : value);
 
-                return string.Format(CultureInfo.InvariantCulture, "<{0} xmlns:dt=\"urn:schemas-microsoft-com:datatypes\" dt:dt=\"{1}\">{2}</{0}>", argument.Name, state.DataType ?? "string", sendValue);
+                return string.Format(CultureInfo.InvariantCulture, "<{0} xmlns:dt=\"urn:schemas-microsoft-com:datatypes\" dt:dt=\"{1}\">{2}</{0}>", argument.Name, state.DataType, sendValue);
             }
 
             return string.Format(CultureInfo.InvariantCulture, "<{0}>{1}</{0}>", argument.Name, value);

Emby.Dlna/Profiles/DefaultProfile.cs

@@ -167,8 +167,7 @@ namespace Emby.Dlna.Profiles
 
         public void AddXmlRootAttribute(string name, string value)
         {
-            var atts = XmlRootAttributes ?? System.Array.Empty<XmlAttribute>();
-            var list = atts.ToList();
+            var list = XmlRootAttributes.ToList();
 
             list.Add(new XmlAttribute
             {

Emby.Dlna/Server/DescriptionXmlBuilder.cs

@@ -15,7 +15,6 @@ namespace Emby.Dlna.Server
     {
         private readonly DeviceProfile _profile;
 
-        private readonly CultureInfo _usCulture = new CultureInfo("en-US");
         private readonly string _serverUdn;
         private readonly string _serverAddress;
         private readonly string _serverName;
@@ -190,16 +189,16 @@ namespace Emby.Dlna.Server
                 builder.Append("<icon>");
 
                 builder.Append("<mimetype>")
-                    .Append(SecurityElement.Escape(icon.MimeType ?? string.Empty))
+                    .Append(SecurityElement.Escape(icon.MimeType))
                     .Append("</mimetype>");
                 builder.Append("<width>")
-                    .Append(SecurityElement.Escape(icon.Width.ToString(_usCulture)))
+                    .Append(SecurityElement.Escape(icon.Width.ToString(CultureInfo.InvariantCulture)))
                     .Append("</width>");
                 builder.Append("<height>")
-                    .Append(SecurityElement.Escape(icon.Height.ToString(_usCulture)))
+                    .Append(SecurityElement.Escape(icon.Height.ToString(CultureInfo.InvariantCulture)))
                     .Append("</height>");
                 builder.Append("<depth>")
-                    .Append(SecurityElement.Escape(icon.Depth ?? string.Empty))
+                    .Append(SecurityElement.Escape(icon.Depth))
                     .Append("</depth>");
                 builder.Append("<url>")
                     .Append(BuildUrl(icon.Url))
@@ -220,10 +219,10 @@ namespace Emby.Dlna.Server
                 builder.Append("<service>");
 
                 builder.Append("<serviceType>")
-                    .Append(SecurityElement.Escape(service.ServiceType ?? string.Empty))
+                    .Append(SecurityElement.Escape(service.ServiceType))
                     .Append("</serviceType>");
                 builder.Append("<serviceId>")
-                    .Append(SecurityElement.Escape(service.ServiceId ?? string.Empty))
+                    .Append(SecurityElement.Escape(service.ServiceId))
                     .Append("</serviceId>");
                 builder.Append("<SCPDURL>")
                     .Append(BuildUrl(service.ScpdUrl))

Emby.Dlna/Service/BaseControlHandler.cs

@@ -64,7 +64,7 @@ namespace Emby.Dlna.Service
                 requestInfo = await ParseRequestAsync(reader).ConfigureAwait(false);
             }
 
-            Logger.LogDebug("Received control request {0}", requestInfo.LocalName);
+            Logger.LogDebug("Received control request {LocalName}, params: {@Headers}", requestInfo.LocalName, requestInfo.Headers);
 
             var settings = new XmlWriterSettings
             {

Emby.Dlna/Service/ServiceXmlBuilder.cs

@@ -38,7 +38,7 @@ namespace Emby.Dlna.Service
                 builder.Append("<action>");
 
                 builder.Append("<name>")
-                    .Append(SecurityElement.Escape(item.Name ?? string.Empty))
+                    .Append(SecurityElement.Escape(item.Name))
                     .Append("</name>");
 
                 builder.Append("<argumentList>");
@@ -48,13 +48,13 @@ namespace Emby.Dlna.Service
                     builder.Append("<argument>");
 
                     builder.Append("<name>")
-                        .Append(SecurityElement.Escape(argument.Name ?? string.Empty))
+                        .Append(SecurityElement.Escape(argument.Name))
                         .Append("</name>");
                     builder.Append("<direction>")
-                        .Append(SecurityElement.Escape(argument.Direction ?? string.Empty))
+                        .Append(SecurityElement.Escape(argument.Direction))
                         .Append("</direction>");
                     builder.Append("<relatedStateVariable>")
-                        .Append(SecurityElement.Escape(argument.RelatedStateVariable ?? string.Empty))
+                        .Append(SecurityElement.Escape(argument.RelatedStateVariable))
                         .Append("</relatedStateVariable>");
 
                     builder.Append("</argument>");
@@ -81,10 +81,10 @@ namespace Emby.Dlna.Service
                     .Append("\">");
 
                 builder.Append("<name>")
-                    .Append(SecurityElement.Escape(item.Name ?? string.Empty))
+                    .Append(SecurityElement.Escape(item.Name))
                     .Append("</name>");
                 builder.Append("<dataType>")
-                    .Append(SecurityElement.Escape(item.DataType ?? string.Empty))
+                    .Append(SecurityElement.Escape(item.DataType))
                     .Append("</dataType>");
 
                 if (item.AllowedValues.Count > 0)

Emby.Drawing/Emby.Drawing.csproj

@@ -9,7 +9,10 @@
     <TargetFramework>net6.0</TargetFramework>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
-    <AnalysisMode>AllDisabledByDefault</AnalysisMode>
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
   </PropertyGroup>
 
   <ItemGroup>
@@ -25,7 +28,7 @@
   <!-- Code analysers-->
   <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
     <PackageReference Include="SerilogAnalyzer" Version="0.15.0" PrivateAssets="All" />
-    <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="All" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.376" PrivateAssets="All" />
     <PackageReference Include="SmartAnalyzers.MultithreadingAnalyzer" Version="1.1.31" PrivateAssets="All" />
   </ItemGroup>
 

Emby.Drawing/ImageProcessor.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using System.Linq;
+using System.Net.Mime;
 using System.Text;
 using System.Threading.Tasks;
 using Jellyfin.Data.Entities;
@@ -26,7 +27,7 @@ namespace Emby.Drawing
     public sealed class ImageProcessor : IImageProcessor, IDisposable
     {
         // Increment this when there's a change requiring caches to be invalidated
-        private const string Version = "3";
+        private const char Version = '3';
 
         private static readonly HashSet<string> _transparentImageTypes
             = new HashSet<string>(StringComparer.OrdinalIgnoreCase) { ".png", ".webp", ".gif" };
@@ -101,8 +102,7 @@ namespace Emby.Drawing
         public async Task ProcessImage(ImageProcessingOptions options, Stream toStream)
         {
             var file = await ProcessImage(options).ConfigureAwait(false);
-
-            using (var fileStream = new FileStream(file.Item1, FileMode.Open, FileAccess.Read, FileShare.Read, IODefaults.FileStreamBufferSize, FileOptions.Asynchronous))
+            using (var fileStream = AsyncFile.OpenRead(file.Path))
             {
                 await fileStream.CopyToAsync(toStream).ConfigureAwait(false);
             }
@@ -117,7 +117,7 @@ namespace Emby.Drawing
             => _transparentImageTypes.Contains(Path.GetExtension(path));
 
         /// <inheritdoc />
-        public async Task<(string path, string? mimeType, DateTime dateModified)> ProcessImage(ImageProcessingOptions options)
+        public async Task<(string Path, string? MimeType, DateTime DateModified)> ProcessImage(ImageProcessingOptions options)
         {
             ItemImageInfo originalImage = options.Image;
             BaseItem item = options.Item;
@@ -130,20 +130,22 @@ namespace Emby.Drawing
                 originalImageSize = new ImageDimensions(originalImage.Width, originalImage.Height);
             }
 
+            var mimeType = MimeTypes.GetMimeType(originalImagePath);
             if (!_imageEncoder.SupportsImageEncoding)
             {
-                return (originalImagePath, MimeTypes.GetMimeType(originalImagePath), dateModified);
+                return (originalImagePath, mimeType, dateModified);
             }
 
             var supportedImageInfo = await GetSupportedImage(originalImagePath, dateModified).ConfigureAwait(false);
-            originalImagePath = supportedImageInfo.path;
+            originalImagePath = supportedImageInfo.Path;
 
-            if (!File.Exists(originalImagePath))
+            // Original file doesn't exist, or original file is gif.
+            if (!File.Exists(originalImagePath) || string.Equals(mimeType, MediaTypeNames.Image.Gif, StringComparison.OrdinalIgnoreCase))
             {
-                return (originalImagePath, MimeTypes.GetMimeType(originalImagePath), dateModified);
+                return (originalImagePath, mimeType, dateModified);
             }
 
-            dateModified = supportedImageInfo.dateModified;
+            dateModified = supportedImageInfo.DateModified;
             bool requiresTransparency = _transparentImageTypes.Contains(Path.GetExtension(originalImagePath));
 
             bool autoOrient = false;
@@ -243,7 +245,7 @@ namespace Emby.Drawing
             return ImageFormat.Jpg;
         }
 
-        private string? GetMimeType(ImageFormat format, string path)
+        private string GetMimeType(ImageFormat format, string path)
             => format switch
             {
                 ImageFormat.Bmp => MimeTypes.GetMimeType("i.bmp"),
@@ -437,7 +439,7 @@ namespace Emby.Drawing
                 .ToString("N", CultureInfo.InvariantCulture);
         }
 
-        private async Task<(string path, DateTime dateModified)> GetSupportedImage(string originalImagePath, DateTime dateModified)
+        private async Task<(string Path, DateTime DateModified)> GetSupportedImage(string originalImagePath, DateTime dateModified)
         {
             var inputFormat = Path.GetExtension(originalImagePath)
                 .TrimStart('.')

Emby.Naming/AudioBook/AudioBookListResolver.cs

@@ -14,6 +14,7 @@ namespace Emby.Naming.AudioBook
     public class AudioBookListResolver
     {
         private readonly NamingOptions _options;
+        private readonly AudioBookResolver _audioBookResolver;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="AudioBookListResolver"/> class.
@@ -22,6 +23,7 @@ namespace Emby.Naming.AudioBook
         public AudioBookListResolver(NamingOptions options)
         {
             _options = options;
+            _audioBookResolver = new AudioBookResolver(_options);
         }
 
         /// <summary>
@@ -31,21 +33,18 @@ namespace Emby.Naming.AudioBook
         /// <returns>Returns IEnumerable of <see cref="AudioBookInfo"/>.</returns>
         public IEnumerable<AudioBookInfo> Resolve(IEnumerable<FileSystemMetadata> files)
         {
-            var audioBookResolver = new AudioBookResolver(_options);
-
             // File with empty fullname will be sorted out here.
             var audiobookFileInfos = files
-                .Select(i => audioBookResolver.Resolve(i.FullName))
+                .Select(i => _audioBookResolver.Resolve(i.FullName))
                 .OfType<AudioBookFileInfo>()
                 .ToList();
 
-            var stackResult = new StackResolver(_options)
-                .ResolveAudioBooks(audiobookFileInfos);
+            var stackResult = StackResolver.ResolveAudioBooks(audiobookFileInfos);
 
             foreach (var stack in stackResult)
             {
                 var stackFiles = stack.Files
-                    .Select(i => audioBookResolver.Resolve(i))
+                    .Select(i => _audioBookResolver.Resolve(i))
                     .OfType<AudioBookFileInfo>()
                     .ToList();
 

Emby.Naming/AudioBook/AudioBookResolver.cs

@@ -1,7 +1,7 @@
 using System;
 using System.IO;
-using System.Linq;
 using Emby.Naming.Common;
+using Jellyfin.Extensions;
 
 namespace Emby.Naming.AudioBook
 {
@@ -37,7 +37,7 @@ namespace Emby.Naming.AudioBook
             var extension = Path.GetExtension(path);
 
             // Check supported extensions
-            if (!_options.AudioFileExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
+            if (!_options.AudioFileExtensions.Contains(extension, StringComparison.OrdinalIgnoreCase))
             {
                 return null;
             }

Emby.Naming/Common/NamingOptions.cs

@@ -1,4 +1,7 @@
+#pragma warning disable CA1819
+
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using System.Text.RegularExpressions;
 using Emby.Naming.Video;
@@ -122,11 +125,11 @@ namespace Emby.Naming.Common
                     token: "DSR")
             };
 
-            VideoFileStackingExpressions = new[]
+            VideoFileStackingRules = new[]
             {
-                "(?<title>.*?)(?<volume>[ _.-]*(?:cd|dvd|p(?:ar)?t|dis[ck])[ _.-]*[0-9]+)(?<ignore>.*?)(?<extension>\\.[^.]+)$",
-                "(?<title>.*?)(?<volume>[ _.-]*(?:cd|dvd|p(?:ar)?t|dis[ck])[ _.-]*[a-d])(?<ignore>.*?)(?<extension>\\.[^.]+)$",
-                "(?<title>.*?)(?<volume>[ ._-]*[a-d])(?<ignore>.*?)(?<extension>\\.[^.]+)$"
+                new FileStackRule(@"^(?<filename>.*?)(?:(?<=[\]\)\}])|[ _.-]+)[\(\[]?(?<parttype>cd|dvd|part|pt|dis[ck])[ _.-]*(?<number>[0-9]+)[\)\]]?(?:\.[^.]+)?$", true),
+                new FileStackRule(@"^(?<filename>.*?)(?:(?<=[\]\)\}])|[ _.-]+)[\(\[]?(?<parttype>cd|dvd|part|pt|dis[ck])[ _.-]*(?<number>[a-d])[\)\]]?(?:\.[^.]+)?$", false),
+                new FileStackRule(@"^(?<filename>.*?)(?:(?<=[\]\)\}])|[ _.-]?)(?<number>[a-d])(?:\.[^.]+)?$", false)
             };
 
             CleanDateTimes = new[]
@@ -137,8 +140,11 @@ namespace Emby.Naming.Common
 
             CleanStrings = new[]
             {
-                @"[ _\,\.\(\)\[\]\-](3d|sbs|tab|hsbs|htab|mvc|HDR|HDC|UHD|UltraHD|4k|ac3|dts|custom|dc|divx|divx5|dsr|dsrip|dutch|dvd|dvdrip|dvdscr|dvdscreener|screener|dvdivx|cam|fragment|fs|hdtv|hdrip|hdtvrip|internal|limited|multisubs|ntsc|ogg|ogm|pal|pdtv|proper|repack|rerip|retail|cd[1-9]|r3|r5|bd5|bd|se|svcd|swedish|german|read.nfo|nfofix|unrated|ws|telesync|ts|telecine|tc|brrip|bdrip|480p|480i|576p|576i|720p|720i|1080p|1080i|2160p|hrhd|hrhdtv|hddvd|bluray|blu-ray|x264|x265|h264|h265|xvid|xvidvd|xxx|www.www|AAC|DTS|\[.*\])([ _\,\.\(\)\[\]\-]|$)",
-                @"(\[.*\])"
+                @"^\s*(?<cleaned>.+?)[ _\,\.\(\)\[\]\-](3d|sbs|tab|hsbs|htab|mvc|HDR|HDC|UHD|UltraHD|4k|ac3|dts|custom|dc|divx|divx5|dsr|dsrip|dutch|dvd|dvdrip|dvdscr|dvdscreener|screener|dvdivx|cam|fragment|fs|hdtv|hdrip|hdtvrip|internal|limited|multisubs|ntsc|ogg|ogm|pal|pdtv|proper|repack|rerip|retail|cd[1-9]|r3|r5|bd5|bd|se|svcd|swedish|german|read.nfo|nfofix|unrated|ws|telesync|ts|telecine|tc|brrip|bdrip|480p|480i|576p|576i|720p|720i|1080p|1080i|2160p|hrhd|hrhdtv|hddvd|bluray|blu-ray|x264|x265|h264|h265|xvid|xvidvd|xxx|www.www|AAC|DTS|\[.*\])([ _\,\.\(\)\[\]\-]|$)",
+                @"^(?<cleaned>.+?)(\[.*\])",
+                @"^\s*(?<cleaned>.+?)\WE[0-9]+(-|~)E?[0-9]+(\W|$)",
+                @"^\s*\[[^\]]+\](?!\.\w+$)\s*(?<cleaned>.+)",
+                @"^\s*(?<cleaned>.+?)\s+-\s+[0-9]+\s*$"
             };
 
             SubtitleFileExtensions = new[]
@@ -250,6 +256,8 @@ namespace Emby.Naming.Common
                 },
                 // <!-- foo.ep01, foo.EP_01 -->
                 new EpisodeExpression(@"[\._ -]()[Ee][Pp]_?([0-9]+)([^\\/]*)$"),
+                // <!-- foo.E01., foo.e01. -->
+                new EpisodeExpression(@"[^\\/]*?()\.?[Ee]([0-9]+)\.([^\\/]*)$"),
                 new EpisodeExpression("(?<year>[0-9]{4})[\\.-](?<month>[0-9]{2})[\\.-](?<day>[0-9]{2})", true)
                 {
                     DateTimeFormats = new[]
@@ -368,6 +376,20 @@ namespace Emby.Naming.Common
                     IsOptimistic = true,
                     IsNamed = true
                 },
+
+                // Series and season only expression
+                // "the show/season 1", "the show/s01"
+                new EpisodeExpression(@"(.*(\\|\/))*(?<seriesname>.+)\/[Ss](eason)?[\. _\-]*(?<seasonnumber>[0-9]+)")
+                {
+                    IsNamed = true
+                },
+
+                // Series and season only expression
+                // "the show S01", "the show season 1"
+                new EpisodeExpression(@"(.*(\\|\/))*(?<seriesname>.+)[\. _\-]+[sS](eason)?[\. _\-]*(?<seasonnumber>[0-9]+)")
+                {
+                    IsNamed = true
+                },
             };
 
             EpisodeWithoutSeasonExpressions = new[]
@@ -382,6 +404,12 @@ namespace Emby.Naming.Common
 
             VideoExtraRules = new[]
             {
+                new ExtraRule(
+                    ExtraType.Trailer,
+                    ExtraRuleType.DirectoryName,
+                    "trailers",
+                    MediaType.Video),
+
                 new ExtraRule(
                     ExtraType.Trailer,
                     ExtraRuleType.Filename,
@@ -442,12 +470,24 @@ namespace Emby.Naming.Common
                     " sample",
                     MediaType.Video),
 
+                new ExtraRule(
+                    ExtraType.ThemeVideo,
+                    ExtraRuleType.DirectoryName,
+                    "backdrops",
+                    MediaType.Video),
+
                 new ExtraRule(
                     ExtraType.ThemeSong,
                     ExtraRuleType.Filename,
                     "theme",
                     MediaType.Audio),
 
+                new ExtraRule(
+                    ExtraType.ThemeSong,
+                    ExtraRuleType.DirectoryName,
+                    "theme-music",
+                    MediaType.Audio),
+
                 new ExtraRule(
                     ExtraType.Scene,
                     ExtraRuleType.Suffix,
@@ -478,6 +518,12 @@ namespace Emby.Naming.Common
                     "-deleted",
                     MediaType.Video),
 
+                new ExtraRule(
+                    ExtraType.DeletedScene,
+                    ExtraRuleType.Suffix,
+                    "-deletedscene",
+                    MediaType.Video),
+
                 new ExtraRule(
                     ExtraType.Clip,
                     ExtraRuleType.Suffix,
@@ -536,7 +582,7 @@ namespace Emby.Naming.Common
                     ExtraType.Unknown,
                     ExtraRuleType.DirectoryName,
                     "extras",
-                    MediaType.Video),
+                    MediaType.Video)
             };
 
             Format3DRules = new[]
@@ -648,9 +694,29 @@ namespace Emby.Naming.Common
                 .Distinct(StringComparer.OrdinalIgnoreCase)
                 .ToArray();
 
+            AllExtrasTypesFolderNames = new Dictionary<string, ExtraType>(StringComparer.OrdinalIgnoreCase)
+            {
+                ["trailers"] = ExtraType.Trailer,
+                ["theme-music"] = ExtraType.ThemeSong,
+                ["backdrops"] = ExtraType.ThemeVideo,
+                ["extras"] = ExtraType.Unknown,
+                ["behind the scenes"] = ExtraType.BehindTheScenes,
+                ["deleted scenes"] = ExtraType.DeletedScene,
+                ["interviews"] = ExtraType.Interview,
+                ["scenes"] = ExtraType.Scene,
+                ["samples"] = ExtraType.Sample,
+                ["shorts"] = ExtraType.Clip,
+                ["featurettes"] = ExtraType.Clip
+            };
+
             Compile();
         }
 
+        /// <summary>
+        /// Gets or sets the folder name to extra types mapping.
+        /// </summary>
+        public Dictionary<string, ExtraType> AllExtrasTypesFolderNames { get; set; }
+
         /// <summary>
         /// Gets or sets list of audio file extensions.
         /// </summary>
@@ -732,9 +798,9 @@ namespace Emby.Naming.Common
         public Format3DRule[] Format3DRules { get; set; }
 
         /// <summary>
-        /// Gets or sets list of raw video file-stacking expressions strings.
+        /// Gets the file stacking rules.
         /// </summary>
-        public string[] VideoFileStackingExpressions { get; set; }
+        public FileStackRule[] VideoFileStackingRules { get; }
 
         /// <summary>
         /// Gets or sets list of raw clean DateTimes regular expressions strings.
@@ -756,11 +822,6 @@ namespace Emby.Naming.Common
         /// </summary>
         public ExtraRule[] VideoExtraRules { get; set; }
 
-        /// <summary>
-        /// Gets list of video file-stack regular expressions.
-        /// </summary>
-        public Regex[] VideoFileStackingRegexes { get; private set; } = Array.Empty<Regex>();
-
         /// <summary>
         /// Gets list of clean datetime regular expressions.
         /// </summary>
@@ -786,7 +847,6 @@ namespace Emby.Naming.Common
         /// </summary>
         public void Compile()
         {
-            VideoFileStackingRegexes = VideoFileStackingExpressions.Select(Compile).ToArray();
             CleanDateTimeRegexes = CleanDateTimes.Select(Compile).ToArray();
             CleanStringRegexes = CleanStrings.Select(Compile).ToArray();
             EpisodeWithoutSeasonRegexes = EpisodeWithoutSeasonExpressions.Select(Compile).ToArray();

Emby.Naming/Emby.Naming.csproj

@@ -13,7 +13,10 @@
     <EmbedUntrackedSources>true</EmbedUntrackedSources>
     <IncludeSymbols>true</IncludeSymbols>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <AnalysisMode>AllDisabledByDefault</AnalysisMode>
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(Stability)'=='Unstable'">
@@ -39,13 +42,13 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
   </ItemGroup>
 
   <!-- Code Analyzers-->
   <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
     <PackageReference Include="SerilogAnalyzer" Version="0.15.0" PrivateAssets="All" />
-    <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="All" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.376" PrivateAssets="All" />
     <PackageReference Include="SmartAnalyzers.MultithreadingAnalyzer" Version="1.1.31" PrivateAssets="All" />
   </ItemGroup>
 

Emby.Naming/Subtitles/SubtitleParser.cs

@@ -2,6 +2,7 @@ using System;
 using System.IO;
 using System.Linq;
 using Emby.Naming.Common;
+using Jellyfin.Extensions;
 
 namespace Emby.Naming.Subtitles
 {
@@ -34,7 +35,7 @@ namespace Emby.Naming.Subtitles
             }
 
             var extension = Path.GetExtension(path);
-            if (!_options.SubtitleFileExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
+            if (!_options.SubtitleFileExtensions.Contains(extension, StringComparison.OrdinalIgnoreCase))
             {
                 return null;
             }
@@ -42,11 +43,11 @@ namespace Emby.Naming.Subtitles
             var flags = GetFlags(path);
             var info = new SubtitleInfo(
                 path,
-                _options.SubtitleDefaultFlags.Any(i => flags.Contains(i, StringComparer.OrdinalIgnoreCase)),
-                _options.SubtitleForcedFlags.Any(i => flags.Contains(i, StringComparer.OrdinalIgnoreCase)));
+                _options.SubtitleDefaultFlags.Any(i => flags.Contains(i, StringComparison.OrdinalIgnoreCase)),
+                _options.SubtitleForcedFlags.Any(i => flags.Contains(i, StringComparison.OrdinalIgnoreCase)));
 
-            var parts = flags.Where(i => !_options.SubtitleDefaultFlags.Contains(i, StringComparer.OrdinalIgnoreCase)
-                && !_options.SubtitleForcedFlags.Contains(i, StringComparer.OrdinalIgnoreCase))
+            var parts = flags.Where(i => !_options.SubtitleDefaultFlags.Contains(i, StringComparison.OrdinalIgnoreCase)
+                && !_options.SubtitleForcedFlags.Contains(i, StringComparison.OrdinalIgnoreCase))
                 .ToList();
 
             // Should have a name, language and file extension

Emby.Naming/TV/EpisodeResolver.cs

@@ -1,8 +1,8 @@
 using System;
 using System.IO;
-using System.Linq;
 using Emby.Naming.Common;
 using Emby.Naming.Video;
+using Jellyfin.Extensions;
 
 namespace Emby.Naming.TV
 {
@@ -48,7 +48,7 @@ namespace Emby.Naming.TV
             {
                 var extension = Path.GetExtension(path);
                 // Check supported extensions
-                if (!_options.VideoFileExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
+                if (!_options.VideoFileExtensions.Contains(extension, StringComparison.OrdinalIgnoreCase))
                 {
                     // It's not supported. Check stub extensions
                     if (!StubResolver.TryResolveFile(path, _options, out stubType))

Emby.Naming/TV/SeasonPathParser.cs

@@ -55,7 +55,7 @@ namespace Emby.Naming.TV
         /// <param name="supportSpecialAliases">if set to <c>true</c> [support special aliases].</param>
         /// <param name="supportNumericSeasonFolders">if set to <c>true</c> [support numeric season folders].</param>
         /// <returns>System.Nullable{System.Int32}.</returns>
-        private static (int? seasonNumber, bool isSeasonFolder) GetSeasonNumberFromPath(
+        private static (int? SeasonNumber, bool IsSeasonFolder) GetSeasonNumberFromPath(
             string path,
             bool supportSpecialAliases,
             bool supportNumericSeasonFolders)
@@ -99,7 +99,7 @@ namespace Emby.Naming.TV
                 if (filename.Contains(name, StringComparison.OrdinalIgnoreCase))
                 {
                     var result = GetSeasonNumberFromPathSubstring(filename.Replace(name, " ", StringComparison.OrdinalIgnoreCase));
-                    if (result.seasonNumber.HasValue)
+                    if (result.SeasonNumber.HasValue)
                     {
                         return result;
                     }
@@ -142,7 +142,7 @@ namespace Emby.Naming.TV
         /// </summary>
         /// <param name="path">The path.</param>
         /// <returns>System.Nullable{System.Int32}.</returns>
-        private static (int? seasonNumber, bool isSeasonFolder) GetSeasonNumberFromPathSubstring(ReadOnlySpan<char> path)
+        private static (int? SeasonNumber, bool IsSeasonFolder) GetSeasonNumberFromPathSubstring(ReadOnlySpan<char> path)
         {
             var numericStart = -1;
             var length = 0;

Emby.Naming/TV/SeriesInfo.cs

@@ -0,0 +1,29 @@
+namespace Emby.Naming.TV
+{
+    /// <summary>
+    /// Holder object for Series information.
+    /// </summary>
+    public class SeriesInfo
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SeriesInfo"/> class.
+        /// </summary>
+        /// <param name="path">Path to the file.</param>
+        public SeriesInfo(string path)
+        {
+            Path = path;
+        }
+
+        /// <summary>
+        /// Gets or sets the path.
+        /// </summary>
+        /// <value>The path.</value>
+        public string Path { get; set; }
+
+        /// <summary>
+        /// Gets or sets the name of the series.
+        /// </summary>
+        /// <value>The name of the series.</value>
+        public string? Name { get; set; }
+    }
+}

Emby.Naming/TV/SeriesPathParser.cs

@@ -0,0 +1,60 @@
+using Emby.Naming.Common;
+
+namespace Emby.Naming.TV
+{
+    /// <summary>
+    /// Used to parse information about series from paths containing more information that only the series name.
+    /// Uses the same regular expressions as the EpisodePathParser but have different success criteria.
+    /// </summary>
+    public static class SeriesPathParser
+    {
+        /// <summary>
+        /// Parses information about series from path.
+        /// </summary>
+        /// <param name="options"><see cref="NamingOptions"/> object containing EpisodeExpressions and MultipleEpisodeExpressions.</param>
+        /// <param name="path">Path.</param>
+        /// <returns>Returns <see cref="SeriesPathParserResult"/> object.</returns>
+        public static SeriesPathParserResult Parse(NamingOptions options, string path)
+        {
+            SeriesPathParserResult? result = null;
+
+            foreach (var expression in options.EpisodeExpressions)
+            {
+                var currentResult = Parse(path, expression);
+                if (currentResult.Success)
+                {
+                    result = currentResult;
+                    break;
+                }
+            }
+
+            if (result != null)
+            {
+                if (!string.IsNullOrEmpty(result.SeriesName))
+                {
+                    result.SeriesName = result.SeriesName.Trim(' ', '_', '.', '-');
+                }
+            }
+
+            return result ?? new SeriesPathParserResult();
+        }
+
+        private static SeriesPathParserResult Parse(string name, EpisodeExpression expression)
+        {
+            var result = new SeriesPathParserResult();
+
+            var match = expression.Regex.Match(name);
+
+            if (match.Success && match.Groups.Count >= 3)
+            {
+                if (expression.IsNamed)
+                {
+                    result.SeriesName = match.Groups["seriesname"].Value;
+                    result.Success = !string.IsNullOrEmpty(result.SeriesName) && !match.Groups["seasonnumber"].ValueSpan.IsEmpty;
+                }
+            }
+
+            return result;
+        }
+    }
+}

Emby.Naming/TV/SeriesPathParserResult.cs

@@ -0,0 +1,19 @@
+namespace Emby.Naming.TV
+{
+    /// <summary>
+    /// Holder object for <see cref="SeriesPathParser"/> result.
+    /// </summary>
+    public class SeriesPathParserResult
+    {
+        /// <summary>
+        /// Gets or sets the name of the series.
+        /// </summary>
+        /// <value>The name of the series.</value>
+        public string? SeriesName { get; set; }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether parsing was successful.
+        /// </summary>
+        public bool Success { get; set; }
+    }
+}

Emby.Naming/TV/SeriesResolver.cs

@@ -0,0 +1,49 @@
+using System.IO;
+using System.Text.RegularExpressions;
+using Emby.Naming.Common;
+
+namespace Emby.Naming.TV
+{
+    /// <summary>
+    /// Used to resolve information about series from path.
+    /// </summary>
+    public static class SeriesResolver
+    {
+        /// <summary>
+        /// Regex that matches strings of at least 2 characters separated by a dot or underscore.
+        /// Used for removing separators between words, i.e turns "The_show" into "The show" while
+        /// preserving namings like "S.H.O.W".
+        /// </summary>
+        private static readonly Regex _seriesNameRegex = new Regex(@"((?<a>[^\._]{2,})[\._]*)|([\._](?<b>[^\._]{2,}))");
+
+        /// <summary>
+        /// Resolve information about series from path.
+        /// </summary>
+        /// <param name="options"><see cref="NamingOptions"/> object passed to <see cref="SeriesPathParser"/>.</param>
+        /// <param name="path">Path to series.</param>
+        /// <returns>SeriesInfo.</returns>
+        public static SeriesInfo Resolve(NamingOptions options, string path)
+        {
+            string seriesName = Path.GetFileName(path);
+
+            SeriesPathParserResult result = SeriesPathParser.Parse(options, path);
+            if (result.Success)
+            {
+                if (!string.IsNullOrEmpty(result.SeriesName))
+                {
+                    seriesName = result.SeriesName;
+                }
+            }
+
+            if (!string.IsNullOrEmpty(seriesName))
+            {
+                seriesName = _seriesNameRegex.Replace(seriesName, "${a} ${b}").Trim();
+            }
+
+            return new SeriesInfo(path)
+            {
+                Name = seriesName
+            };
+        }
+    }
+}

Emby.Naming/Video/CleanStringParser.cs

@@ -1,4 +1,3 @@
-using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.Text.RegularExpressions;
@@ -17,38 +16,39 @@ namespace Emby.Naming.Video
         /// <param name="expressions">List of regex to parse name and year from.</param>
         /// <param name="newName">Parsing result string.</param>
         /// <returns>True if parsing was successful.</returns>
-        public static bool TryClean([NotNullWhen(true)] string? name, IReadOnlyList<Regex> expressions, out ReadOnlySpan<char> newName)
+        public static bool TryClean([NotNullWhen(true)] string? name, IReadOnlyList<Regex> expressions, out string newName)
         {
             if (string.IsNullOrEmpty(name))
             {
-                newName = ReadOnlySpan<char>.Empty;
+                newName = string.Empty;
                 return false;
             }
 
-            var len = expressions.Count;
-            for (int i = 0; i < len; i++)
+            // Iteratively apply the regexps to clean the string.
+            bool cleaned = false;
+            for (int i = 0; i < expressions.Count; i++)
             {
                 if (TryClean(name, expressions[i], out newName))
                 {
-                    return true;
+                    cleaned = true;
+                    name = newName;
                 }
             }
 
-            newName = ReadOnlySpan<char>.Empty;
-            return false;
+            newName = cleaned ? name : string.Empty;
+            return cleaned;
         }
 
-        private static bool TryClean(string name, Regex expression, out ReadOnlySpan<char> newName)
+        private static bool TryClean(string name, Regex expression, out string newName)
         {
             var match = expression.Match(name);
-            int index = match.Index;
-            if (match.Success && index != 0)
+            if (match.Success && match.Groups.TryGetValue("cleaned", out var cleaned))
             {
-                newName = name.AsSpan().Slice(0, match.Index);
+                newName = cleaned.Value;
                 return true;
             }
 
-            newName = ReadOnlySpan<char>.Empty;
+            newName = string.Empty;
             return false;
         }
     }

Emby.Naming/Video/ExtraResolver.cs → Emby.Naming/Video/ExtraRuleResolver.cs

@@ -9,44 +9,27 @@ namespace Emby.Naming.Video
     /// <summary>
     /// Resolve if file is extra for video.
     /// </summary>
-    public class ExtraResolver
+    public static class ExtraRuleResolver
     {
-        private readonly NamingOptions _options;
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="ExtraResolver"/> class.
-        /// </summary>
-        /// <param name="options"><see cref="NamingOptions"/> object containing VideoExtraRules and passed to <see cref="AudioFileParser"/> and <see cref="VideoResolver"/>.</param>
-        public ExtraResolver(NamingOptions options)
-        {
-            _options = options;
-        }
+        private static readonly char[] _digits = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };
 
         /// <summary>
         /// Attempts to resolve if file is extra.
         /// </summary>
         /// <param name="path">Path to file.</param>
+        /// <param name="namingOptions">The naming options.</param>
         /// <returns>Returns <see cref="ExtraResult"/> object.</returns>
-        public ExtraResult GetExtraInfo(string path)
+        public static ExtraResult GetExtraInfo(string path, NamingOptions namingOptions)
         {
             var result = new ExtraResult();
 
-            for (var i = 0; i < _options.VideoExtraRules.Length; i++)
+            for (var i = 0; i < namingOptions.VideoExtraRules.Length; i++)
             {
-                var rule = _options.VideoExtraRules[i];
-                if (rule.MediaType == MediaType.Audio)
-                {
-                    if (!AudioFileParser.IsAudioFile(path, _options))
-                    {
-                        continue;
-                    }
-                }
-                else if (rule.MediaType == MediaType.Video)
+                var rule = namingOptions.VideoExtraRules[i];
+                if ((rule.MediaType == MediaType.Audio && !AudioFileParser.IsAudioFile(path, namingOptions))
+                    || (rule.MediaType == MediaType.Video && !VideoResolver.IsVideoFile(path, namingOptions)))
                 {
-                    if (!VideoResolver.IsVideoFile(path, _options))
-                    {
-                        continue;
-                    }
+                    continue;
                 }
 
                 var pathSpan = path.AsSpan();
@@ -62,9 +45,10 @@ namespace Emby.Naming.Video
                 }
                 else if (rule.RuleType == ExtraRuleType.Suffix)
                 {
-                    var filename = Path.GetFileNameWithoutExtension(pathSpan);
+                    // Trim the digits from the end of the filename so we can recognize things like -trailer2
+                    var filename = Path.GetFileNameWithoutExtension(pathSpan).TrimEnd(_digits);
 
-                    if (filename.Contains(rule.Token, StringComparison.OrdinalIgnoreCase))
+                    if (filename.EndsWith(rule.Token, StringComparison.OrdinalIgnoreCase))
                     {
                         result.ExtraType = rule.ExtraType;
                         result.Rule = rule;
@@ -74,9 +58,9 @@ namespace Emby.Naming.Video
                 {
                     var filename = Path.GetFileName(path);
 
-                    var regex = new Regex(rule.Token, RegexOptions.IgnoreCase);
+                    var isMatch = Regex.IsMatch(filename, rule.Token, RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
-                    if (regex.IsMatch(filename))
+                    if (isMatch)
                     {
                         result.ExtraType = rule.ExtraType;
                         result.Rule = rule;

Emby.Naming/Video/FileStack.cs

@@ -1,6 +1,6 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
+using Jellyfin.Extensions;
 
 namespace Emby.Naming.Video
 {
@@ -12,25 +12,30 @@ namespace Emby.Naming.Video
         /// <summary>
         /// Initializes a new instance of the <see cref="FileStack"/> class.
         /// </summary>
-        public FileStack()
+        /// <param name="name">The stack name.</param>
+        /// <param name="isDirectory">Whether the stack files are directories.</param>
+        /// <param name="files">The stack files.</param>
+        public FileStack(string name, bool isDirectory, IReadOnlyList<string> files)
         {
-            Files = new List<string>();
+            Name = name;
+            IsDirectoryStack = isDirectory;
+            Files = files;
         }
 
         /// <summary>
-        /// Gets or sets name of file stack.
+        /// Gets the name of file stack.
         /// </summary>
-        public string Name { get; set; } = string.Empty;
+        public string Name { get; }
 
         /// <summary>
-        /// Gets or sets list of paths in stack.
+        /// Gets the list of paths in stack.
         /// </summary>
-        public List<string> Files { get; set; }
+        public IReadOnlyList<string> Files { get; }
 
         /// <summary>
-        /// Gets or sets a value indicating whether stack is directory stack.
+        /// Gets a value indicating whether stack is directory stack.
         /// </summary>
-        public bool IsDirectoryStack { get; set; }
+        public bool IsDirectoryStack { get; }
 
         /// <summary>
         /// Helper function to determine if path is in the stack.
@@ -40,12 +45,12 @@ namespace Emby.Naming.Video
         /// <returns>True if file is in the stack.</returns>
         public bool ContainsFile(string file, bool isDirectory)
         {
-            if (IsDirectoryStack == isDirectory)
+            if (string.IsNullOrEmpty(file))
             {
-                return Files.Contains(file, StringComparer.OrdinalIgnoreCase);
+                return false;
             }
 
-            return false;
+            return IsDirectoryStack == isDirectory && Files.Contains(file, StringComparison.OrdinalIgnoreCase);
         }
     }
 }

Emby.Naming/Video/FileStackRule.cs

@@ -0,0 +1,48 @@
+using System.Diagnostics.CodeAnalysis;
+using System.Text.RegularExpressions;
+
+namespace Emby.Naming.Video;
+
+/// <summary>
+/// Regex based rule for file stacking (eg. disc1, disc2).
+/// </summary>
+public class FileStackRule
+{
+    private readonly Regex _tokenRegex;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="FileStackRule"/> class.
+    /// </summary>
+    /// <param name="token">Token.</param>
+    /// <param name="isNumerical">Whether the file stack rule uses numerical or alphabetical numbering.</param>
+    public FileStackRule(string token, bool isNumerical)
+    {
+        _tokenRegex = new Regex(token, RegexOptions.IgnoreCase);
+        IsNumerical = isNumerical;
+    }
+
+    /// <summary>
+    /// Gets a value indicating whether the rule uses numerical or alphabetical numbering.
+    /// </summary>
+    public bool IsNumerical { get; }
+
+    /// <summary>
+    /// Match the input against the rule regex.
+    /// </summary>
+    /// <param name="input">The input.</param>
+    /// <param name="result">The part type and number or <c>null</c>.</param>
+    /// <returns>A value indicating whether the input matched the rule.</returns>
+    public bool Match(string input, [NotNullWhen(true)] out (string StackName, string PartType, string PartNumber)? result)
+    {
+        result = null;
+        var match = _tokenRegex.Match(input);
+        if (!match.Success)
+        {
+            return false;
+        }
+
+        var partType = match.Groups["parttype"].Success ? match.Groups["parttype"].Value : "unknown";
+        result = (match.Groups["filename"].Value, partType, match.Groups["number"].Value);
+        return true;
+    }
+}

Emby.Naming/Video/Format3DParser.cs

@@ -9,7 +9,7 @@ namespace Emby.Naming.Video
     public static class Format3DParser
     {
         // Static default result to save on allocation costs.
-        private static readonly Format3DResult _defaultResult = new (false, null);
+        private static readonly Format3DResult _defaultResult = new(false, null);
 
         /// <summary>
         /// Parse 3D format related flags.

Emby.Naming/Video/StackResolver.cs

@@ -2,7 +2,6 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Text.RegularExpressions;
 using Emby.Naming.AudioBook;
 using Emby.Naming.Common;
 using MediaBrowser.Model.IO;
@@ -12,37 +11,28 @@ namespace Emby.Naming.Video
     /// <summary>
     /// Resolve <see cref="FileStack"/> from list of paths.
     /// </summary>
-    public class StackResolver
+    public static class StackResolver
     {
-        private readonly NamingOptions _options;
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="StackResolver"/> class.
-        /// </summary>
-        /// <param name="options"><see cref="NamingOptions"/> object containing VideoFileStackingRegexes and passes options to <see cref="VideoResolver"/>.</param>
-        public StackResolver(NamingOptions options)
-        {
-            _options = options;
-        }
-
         /// <summary>
         /// Resolves only directories from paths.
         /// </summary>
         /// <param name="files">List of paths.</param>
+        /// <param name="namingOptions">The naming options.</param>
         /// <returns>Enumerable <see cref="FileStack"/> of directories.</returns>
-        public IEnumerable<FileStack> ResolveDirectories(IEnumerable<string> files)
+        public static IEnumerable<FileStack> ResolveDirectories(IEnumerable<string> files, NamingOptions namingOptions)
         {
-            return Resolve(files.Select(i => new FileSystemMetadata { FullName = i, IsDirectory = true }));
+            return Resolve(files.Select(i => new FileSystemMetadata { FullName = i, IsDirectory = true }), namingOptions);
         }
 
         /// <summary>
         /// Resolves only files from paths.
         /// </summary>
         /// <param name="files">List of paths.</param>
+        /// <param name="namingOptions">The naming options.</param>
         /// <returns>Enumerable <see cref="FileStack"/> of files.</returns>
-        public IEnumerable<FileStack> ResolveFiles(IEnumerable<string> files)
+        public static IEnumerable<FileStack> ResolveFiles(IEnumerable<string> files, NamingOptions namingOptions)
         {
-            return Resolve(files.Select(i => new FileSystemMetadata { FullName = i, IsDirectory = false }));
+            return Resolve(files.Select(i => new FileSystemMetadata { FullName = i, IsDirectory = false }), namingOptions);
         }
 
         /// <summary>
@@ -50,7 +40,7 @@ namespace Emby.Naming.Video
         /// </summary>
         /// <param name="files">List of paths.</param>
         /// <returns>Enumerable <see cref="FileStack"/> of directories.</returns>
-        public IEnumerable<FileStack> ResolveAudioBooks(IEnumerable<AudioBookFileInfo> files)
+        public static IEnumerable<FileStack> ResolveAudioBooks(IEnumerable<AudioBookFileInfo> files)
         {
             var groupedDirectoryFiles = files.GroupBy(file => Path.GetDirectoryName(file.Path));
 
@@ -60,19 +50,13 @@ namespace Emby.Naming.Video
                 {
                     foreach (var file in directory)
                     {
-                        var stack = new FileStack { Name = Path.GetFileNameWithoutExtension(file.Path), IsDirectoryStack = false };
-                        stack.Files.Add(file.Path);
+                        var stack = new FileStack(Path.GetFileNameWithoutExtension(file.Path), false, new[] { file.Path });
                         yield return stack;
                     }
                 }
                 else
                 {
-                    var stack = new FileStack { Name = Path.GetFileName(directory.Key), IsDirectoryStack = false };
-                    foreach (var file in directory)
-                    {
-                        stack.Files.Add(file.Path);
-                    }
-
+                    var stack = new FileStack(Path.GetFileName(directory.Key), false, directory.Select(f => f.Path).ToArray());
                     yield return stack;
                 }
             }
@@ -82,158 +66,91 @@ namespace Emby.Naming.Video
         /// Resolves videos from paths.
         /// </summary>
         /// <param name="files">List of paths.</param>
+        /// <param name="namingOptions">The naming options.</param>
         /// <returns>Enumerable <see cref="FileStack"/> of videos.</returns>
-        public IEnumerable<FileStack> Resolve(IEnumerable<FileSystemMetadata> files)
+        public static IEnumerable<FileStack> Resolve(IEnumerable<FileSystemMetadata> files, NamingOptions namingOptions)
         {
-            var list = files
-                .Where(i => i.IsDirectory || VideoResolver.IsVideoFile(i.FullName, _options) || VideoResolver.IsStubFile(i.FullName, _options))
-                .OrderBy(i => i.FullName)
-                .ToList();
-
-            var expressions = _options.VideoFileStackingRegexes;
+            var potentialFiles = files
+                .Where(i => i.IsDirectory || VideoResolver.IsVideoFile(i.FullName, namingOptions) || VideoResolver.IsStubFile(i.FullName, namingOptions))
+                .OrderBy(i => i.FullName);
 
-            for (var i = 0; i < list.Count; i++)
+            var potentialStacks = new Dictionary<string, StackMetadata>();
+            foreach (var file in potentialFiles)
             {
-                var offset = 0;
-
-                var file1 = list[i];
+                var name = file.Name;
+                if (string.IsNullOrEmpty(name))
+                {
+                    name = Path.GetFileName(file.FullName);
+                }
 
-                var expressionIndex = 0;
-                while (expressionIndex < expressions.Length)
+                for (var i = 0; i < namingOptions.VideoFileStackingRules.Length; i++)
                 {
-                    var exp = expressions[expressionIndex];
-                    var stack = new FileStack();
+                    var rule = namingOptions.VideoFileStackingRules[i];
+                    if (!rule.Match(name, out var stackParsingResult))
+                    {
+                        continue;
+                    }
 
-                    // (Title)(Volume)(Ignore)(Extension)
-                    var match1 = FindMatch(file1, exp, offset);
+                    var stackName = stackParsingResult.Value.StackName;
+                    var partNumber = stackParsingResult.Value.PartNumber;
+                    var partType = stackParsingResult.Value.PartType;
 
-                    if (match1.Success)
+                    if (!potentialStacks.TryGetValue(stackName, out var stackResult))
                     {
-                        var title1 = match1.Groups["title"].Value;
-                        var volume1 = match1.Groups["volume"].Value;
-                        var ignore1 = match1.Groups["ignore"].Value;
-                        var extension1 = match1.Groups["extension"].Value;
+                        stackResult = new StackMetadata(file.IsDirectory, rule.IsNumerical, partType);
+                        potentialStacks[stackName] = stackResult;
+                    }
 
-                        var j = i + 1;
-                        while (j < list.Count)
+                    if (stackResult.Parts.Count > 0)
+                    {
+                        if (stackResult.IsDirectory != file.IsDirectory
+                            || !string.Equals(partType, stackResult.PartType, StringComparison.OrdinalIgnoreCase)
+                            || stackResult.ContainsPart(partNumber))
                         {
-                            var file2 = list[j];
-
-                            if (file1.IsDirectory != file2.IsDirectory)
-                            {
-                                j++;
-                                continue;
-                            }
-
-                            // (Title)(Volume)(Ignore)(Extension)
-                            var match2 = FindMatch(file2, exp, offset);
-
-                            if (match2.Success)
-                            {
-                                var title2 = match2.Groups[1].Value;
-                                var volume2 = match2.Groups[2].Value;
-                                var ignore2 = match2.Groups[3].Value;
-                                var extension2 = match2.Groups[4].Value;
-
-                                if (string.Equals(title1, title2, StringComparison.OrdinalIgnoreCase))
-                                {
-                                    if (!string.Equals(volume1, volume2, StringComparison.OrdinalIgnoreCase))
-                                    {
-                                        if (string.Equals(ignore1, ignore2, StringComparison.OrdinalIgnoreCase)
-                                            && string.Equals(extension1, extension2, StringComparison.OrdinalIgnoreCase))
-                                        {
-                                            if (stack.Files.Count == 0)
-                                            {
-                                                stack.Name = title1 + ignore1;
-                                                stack.IsDirectoryStack = file1.IsDirectory;
-                                                stack.Files.Add(file1.FullName);
-                                            }
-
-                                            stack.Files.Add(file2.FullName);
-                                        }
-                                        else
-                                        {
-                                            // Sequel
-                                            offset = 0;
-                                            expressionIndex++;
-                                            break;
-                                        }
-                                    }
-                                    else if (!string.Equals(ignore1, ignore2, StringComparison.OrdinalIgnoreCase))
-                                    {
-                                        // False positive, try again with offset
-                                        offset = match1.Groups[3].Index;
-                                        break;
-                                    }
-                                    else
-                                    {
-                                        // Extension mismatch
-                                        offset = 0;
-                                        expressionIndex++;
-                                        break;
-                                    }
-                                }
-                                else
-                                {
-                                    // Title mismatch
-                                    offset = 0;
-                                    expressionIndex++;
-                                    break;
-                                }
-                            }
-                            else
-                            {
-                                // No match 2, next expression
-                                offset = 0;
-                                expressionIndex++;
-                                break;
-                            }
-
-                            j++;
+                            continue;
                         }
 
-                        if (j == list.Count)
+                        if (rule.IsNumerical != stackResult.IsNumerical)
                         {
-                            expressionIndex = expressions.Length;
+                            break;
                         }
                     }
-                    else
-                    {
-                        // No match 1
-                        offset = 0;
-                        expressionIndex++;
-                    }
 
-                    if (stack.Files.Count > 1)
-                    {
-                        yield return stack;
-                        i += stack.Files.Count - 1;
-                        break;
-                    }
+                    stackResult.Parts.Add(partNumber, file);
+                    break;
                 }
             }
-        }
 
-        private static string GetRegexInput(FileSystemMetadata file)
-        {
-            // For directories, dummy up an extension otherwise the expressions will fail
-            var input = !file.IsDirectory
-                ? file.FullName
-                : file.FullName + ".mkv";
+            foreach (var (fileName, stack) in potentialStacks)
+            {
+                if (stack.Parts.Count < 2)
+                {
+                    continue;
+                }
 
-            return Path.GetFileName(input);
+                yield return new FileStack(fileName, stack.IsDirectory, stack.Parts.Select(kv => kv.Value.FullName).ToArray());
+            }
         }
 
-        private static Match FindMatch(FileSystemMetadata input, Regex regex, int offset)
+        private class StackMetadata
         {
-            var regexInput = GetRegexInput(input);
-
-            if (offset < 0 || offset >= regexInput.Length)
+            public StackMetadata(bool isDirectory, bool isNumerical, string partType)
             {
-                return Match.Empty;
+                Parts = new Dictionary<string, FileSystemMetadata>(StringComparer.OrdinalIgnoreCase);
+                IsDirectory = isDirectory;
+                IsNumerical = isNumerical;
+                PartType = partType;
             }
 
-            return regex.Match(regexInput, offset);
+            public Dictionary<string, FileSystemMetadata> Parts { get; }
+
+            public bool IsDirectory { get; }
+
+            public bool IsNumerical { get; }
+
+            public string PartType { get; }
+
+            public bool ContainsPart(string partNumber) => Parts.ContainsKey(partNumber);
         }
     }
 }

Emby.Naming/Video/StubResolver.cs

@@ -1,7 +1,7 @@
 using System;
 using System.IO;
-using System.Linq;
 using Emby.Naming.Common;
+using Jellyfin.Extensions;
 
 namespace Emby.Naming.Video
 {
@@ -28,7 +28,7 @@ namespace Emby.Naming.Video
 
             var extension = Path.GetExtension(path);
 
-            if (!options.StubFileExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
+            if (!options.StubFileExtensions.Contains(extension, StringComparison.OrdinalIgnoreCase))
             {
                 return false;
             }

Emby.Naming/Video/VideoInfo.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using MediaBrowser.Model.Entities;
 
 namespace Emby.Naming.Video
 {
@@ -17,7 +18,6 @@ namespace Emby.Naming.Video
             Name = name;
 
             Files = Array.Empty<VideoFileInfo>();
-            Extras = Array.Empty<VideoFileInfo>();
             AlternateVersions = Array.Empty<VideoFileInfo>();
         }
 
@@ -39,16 +39,15 @@ namespace Emby.Naming.Video
         /// <value>The files.</value>
         public IReadOnlyList<VideoFileInfo> Files { get; set; }
 
-        /// <summary>
-        /// Gets or sets the extras.
-        /// </summary>
-        /// <value>The extras.</value>
-        public IReadOnlyList<VideoFileInfo> Extras { get; set; }
-
         /// <summary>
         /// Gets or sets the alternate versions.
         /// </summary>
         /// <value>The alternate versions.</value>
         public IReadOnlyList<VideoFileInfo> AlternateVersions { get; set; }
+
+        /// <summary>
+        /// Gets or sets the extra type.
+        /// </summary>
+        public ExtraType? ExtraType { get; set; }
     }
 }

Emby.Naming/Video/VideoListResolver.cs

@@ -4,7 +4,6 @@ using System.IO;
 using System.Linq;
 using System.Text.RegularExpressions;
 using Emby.Naming.Common;
-using MediaBrowser.Model.Entities;
 using MediaBrowser.Model.IO;
 
 namespace Emby.Naming.Video
@@ -17,29 +16,41 @@ namespace Emby.Naming.Video
         /// <summary>
         /// Resolves alternative versions and extras from list of video files.
         /// </summary>
-        /// <param name="files">List of related video files.</param>
+        /// <param name="videoInfos">List of related video files.</param>
         /// <param name="namingOptions">The naming options.</param>
         /// <param name="supportMultiVersion">Indication we should consider multi-versions of content.</param>
+        /// <param name="parseName">Whether to parse the name or use the filename.</param>
         /// <returns>Returns enumerable of <see cref="VideoInfo"/> which groups files together when related.</returns>
-        public static IEnumerable<VideoInfo> Resolve(IEnumerable<FileSystemMetadata> files, NamingOptions namingOptions, bool supportMultiVersion = true)
+        public static IReadOnlyList<VideoInfo> Resolve(IReadOnlyList<VideoFileInfo> videoInfos, NamingOptions namingOptions, bool supportMultiVersion = true, bool parseName = true)
         {
-            var videoInfos = files
-                .Select(i => VideoResolver.Resolve(i.FullName, i.IsDirectory, namingOptions))
-                .OfType<VideoFileInfo>()
-                .ToList();
-
             // Filter out all extras, otherwise they could cause stacks to not be resolved
             // See the unit test TestStackedWithTrailer
             var nonExtras = videoInfos
                 .Where(i => i.ExtraType == null)
                 .Select(i => new FileSystemMetadata { FullName = i.Path, IsDirectory = i.IsDirectory });
 
-            var stackResult = new StackResolver(namingOptions)
-                .Resolve(nonExtras).ToList();
+            var stackResult = StackResolver.Resolve(nonExtras, namingOptions).ToList();
+
+            var remainingFiles = new List<VideoFileInfo>();
+            var standaloneMedia = new List<VideoFileInfo>();
 
-            var remainingFiles = videoInfos
-                .Where(i => !stackResult.Any(s => i.Path != null && s.ContainsFile(i.Path, i.IsDirectory)))
-                .ToList();
+            for (var i = 0; i < videoInfos.Count; i++)
+            {
+                var current = videoInfos[i];
+                if (stackResult.Any(s => s.ContainsFile(current.Path, current.IsDirectory)))
+                {
+                    continue;
+                }
+
+                if (current.ExtraType == null)
+                {
+                    standaloneMedia.Add(current);
+                }
+                else
+                {
+                    remainingFiles.Add(current);
+                }
+            }
 
             var list = new List<VideoInfo>();
 
@@ -47,38 +58,20 @@ namespace Emby.Naming.Video
             {
                 var info = new VideoInfo(stack.Name)
                 {
-                    Files = stack.Files.Select(i => VideoResolver.Resolve(i, stack.IsDirectoryStack, namingOptions))
+                    Files = stack.Files.Select(i => VideoResolver.Resolve(i, stack.IsDirectoryStack, namingOptions, parseName))
                         .OfType<VideoFileInfo>()
                         .ToList()
                 };
 
                 info.Year = info.Files[0].Year;
-
-                var extras = ExtractExtras(remainingFiles, stack.Name, Path.GetFileNameWithoutExtension(stack.Files[0].AsSpan()), namingOptions.VideoFlagDelimiters);
-
-                if (extras.Count > 0)
-                {
-                    info.Extras = extras;
-                }
-
                 list.Add(info);
             }
 
-            var standaloneMedia = remainingFiles
-                .Where(i => i.ExtraType == null)
-                .ToList();
-
             foreach (var media in standaloneMedia)
             {
                 var info = new VideoInfo(media.Name) { Files = new[] { media } };
 
                 info.Year = info.Files[0].Year;
-
-                remainingFiles.Remove(media);
-                var extras = ExtractExtras(remainingFiles, media.FileNameWithoutExtension, namingOptions.VideoFlagDelimiters);
-
-                info.Extras = extras;
-
                 list.Add(info);
             }
 
@@ -87,58 +80,12 @@ namespace Emby.Naming.Video
                 list = GetVideosGroupedByVersion(list, namingOptions);
             }
 
-            // If there's only one resolved video, use the folder name as well to find extras
-            if (list.Count == 1)
-            {
-                var info = list[0];
-                var videoPath = list[0].Files[0].Path;
-                var parentPath = Path.GetDirectoryName(videoPath.AsSpan());
-
-                if (!parentPath.IsEmpty)
-                {
-                    var folderName = Path.GetFileName(parentPath);
-                    if (!folderName.IsEmpty)
-                    {
-                        var extras = ExtractExtras(remainingFiles, folderName, namingOptions.VideoFlagDelimiters);
-                        extras.AddRange(info.Extras);
-                        info.Extras = extras;
-                    }
-                }
-
-                // Add the extras that are just based on file name as well
-                var extrasByFileName = remainingFiles
-                    .Where(i => i.ExtraRule != null && i.ExtraRule.RuleType == ExtraRuleType.Filename)
-                    .ToList();
-
-                remainingFiles = remainingFiles
-                    .Except(extrasByFileName)
-                    .ToList();
-
-                extrasByFileName.AddRange(info.Extras);
-                info.Extras = extrasByFileName;
-            }
-
-            // If there's only one video, accept all trailers
-            // Be lenient because people use all kinds of mishmash conventions with trailers.
-            if (list.Count == 1)
-            {
-                var trailers = remainingFiles
-                    .Where(i => i.ExtraType == ExtraType.Trailer)
-                    .ToList();
-
-                trailers.AddRange(list[0].Extras);
-                list[0].Extras = trailers;
-
-                remainingFiles = remainingFiles
-                    .Except(trailers)
-                    .ToList();
-            }
-
             // Whatever files are left, just add them
             list.AddRange(remainingFiles.Select(i => new VideoInfo(i.Name)
             {
                 Files = new[] { i },
-                Year = i.Year
+                Year = i.Year,
+                ExtraType = i.ExtraType
             }));
 
             return list;
@@ -162,6 +109,11 @@ namespace Emby.Naming.Video
             for (var i = 0; i < videos.Count; i++)
             {
                 var video = videos[i];
+                if (video.ExtraType != null)
+                {
+                    continue;
+                }
+
                 if (!IsEligibleForMultiVersion(folderName, video.Files[0].Path, namingOptions))
                 {
                     return videos;
@@ -178,17 +130,14 @@ namespace Emby.Naming.Video
 
             var alternateVersionsLen = videos.Count - 1;
             var alternateVersions = new VideoFileInfo[alternateVersionsLen];
-            var extras = new List<VideoFileInfo>(list[0].Extras);
             for (int i = 0; i < alternateVersionsLen; i++)
             {
                 var video = videos[i + 1];
                 alternateVersions[i] = video.Files[0];
-                extras.AddRange(video.Extras);
             }
 
             list[0].AlternateVersions = alternateVersions;
             list[0].Name = folderName.ToString();
-            list[0].Extras = extras;
 
             return list;
         }
@@ -230,7 +179,7 @@ namespace Emby.Naming.Video
             var tmpTestFilename = testFilename.ToString();
             if (CleanStringParser.TryClean(tmpTestFilename, namingOptions.CleanStringRegexes, out var cleanName))
             {
-                tmpTestFilename = cleanName.Trim().ToString();
+                tmpTestFilename = cleanName.Trim();
             }
 
             // The CleanStringParser should have removed common keywords etc.
@@ -238,67 +187,5 @@ namespace Emby.Naming.Video
                    || testFilename[0] == '-'
                    || Regex.IsMatch(tmpTestFilename, @"^\[([^]]*)\]", RegexOptions.Compiled);
         }
-
-        private static ReadOnlySpan<char> TrimFilenameDelimiters(ReadOnlySpan<char> name, ReadOnlySpan<char> videoFlagDelimiters)
-        {
-            return name.IsEmpty ? name : name.TrimEnd().TrimEnd(videoFlagDelimiters).TrimEnd();
-        }
-
-        private static bool StartsWith(ReadOnlySpan<char> fileName, ReadOnlySpan<char> baseName, ReadOnlySpan<char> trimmedBaseName)
-        {
-            if (baseName.IsEmpty)
-            {
-                return false;
-            }
-
-            return fileName.StartsWith(baseName, StringComparison.OrdinalIgnoreCase)
-                   || (!trimmedBaseName.IsEmpty && fileName.StartsWith(trimmedBaseName, StringComparison.OrdinalIgnoreCase));
-        }
-
-        /// <summary>
-        /// Finds similar filenames to that of [baseName] and removes any matches from [remainingFiles].
-        /// </summary>
-        /// <param name="remainingFiles">The list of remaining filenames.</param>
-        /// <param name="baseName">The base name to use for the comparison.</param>
-        /// <param name="videoFlagDelimiters">The video flag delimiters.</param>
-        /// <returns>A list of video extras for [baseName].</returns>
-        private static List<VideoFileInfo> ExtractExtras(IList<VideoFileInfo> remainingFiles, ReadOnlySpan<char> baseName, ReadOnlySpan<char> videoFlagDelimiters)
-        {
-            return ExtractExtras(remainingFiles, baseName, ReadOnlySpan<char>.Empty, videoFlagDelimiters);
-        }
-
-        /// <summary>
-        /// Finds similar filenames to that of [firstBaseName] and [secondBaseName] and removes any matches from [remainingFiles].
-        /// </summary>
-        /// <param name="remainingFiles">The list of remaining filenames.</param>
-        /// <param name="firstBaseName">The first base name to use for the comparison.</param>
-        /// <param name="secondBaseName">The second base name to use for the comparison.</param>
-        /// <param name="videoFlagDelimiters">The video flag delimiters.</param>
-        /// <returns>A list of video extras for [firstBaseName] and [secondBaseName].</returns>
-        private static List<VideoFileInfo> ExtractExtras(IList<VideoFileInfo> remainingFiles, ReadOnlySpan<char> firstBaseName, ReadOnlySpan<char> secondBaseName, ReadOnlySpan<char> videoFlagDelimiters)
-        {
-            var trimmedFirstBaseName = TrimFilenameDelimiters(firstBaseName, videoFlagDelimiters);
-            var trimmedSecondBaseName = TrimFilenameDelimiters(secondBaseName, videoFlagDelimiters);
-
-            var result = new List<VideoFileInfo>();
-            for (var pos = remainingFiles.Count - 1; pos >= 0; pos--)
-            {
-                var file = remainingFiles[pos];
-                if (file.ExtraType == null)
-                {
-                    continue;
-                }
-
-                var filename = file.FileNameWithoutExtension;
-                if (StartsWith(filename, firstBaseName, trimmedFirstBaseName)
-                    || StartsWith(filename, secondBaseName, trimmedSecondBaseName))
-                {
-                    result.Add(file);
-                    remainingFiles.RemoveAt(pos);
-                }
-            }
-
-            return result;
-        }
     }
 }

Emby.Naming/Video/VideoResolver.cs

@@ -16,10 +16,11 @@ namespace Emby.Naming.Video
         /// </summary>
         /// <param name="path">The path.</param>
         /// <param name="namingOptions">The naming options.</param>
+        /// <param name="parseName">Whether to parse the name or use the filename.</param>
         /// <returns>VideoFileInfo.</returns>
-        public static VideoFileInfo? ResolveDirectory(string? path, NamingOptions namingOptions)
+        public static VideoFileInfo? ResolveDirectory(string? path, NamingOptions namingOptions, bool parseName = true)
         {
-            return Resolve(path, true, namingOptions);
+            return Resolve(path, true, namingOptions, parseName);
         }
 
         /// <summary>
@@ -74,7 +75,7 @@ namespace Emby.Naming.Video
 
             var format3DResult = Format3DParser.Parse(path, namingOptions);
 
-            var extraResult = new ExtraResolver(namingOptions).GetExtraInfo(path);
+            var extraResult = ExtraRuleResolver.GetExtraInfo(path, namingOptions);
 
             var name = Path.GetFileNameWithoutExtension(path);
 
@@ -87,9 +88,9 @@ namespace Emby.Naming.Video
                 year = cleanDateTimeResult.Year;
 
                 if (extraResult.ExtraType == null
-                    && TryCleanString(name, namingOptions, out ReadOnlySpan<char> newName))
+                    && TryCleanString(name, namingOptions, out var newName))
                 {
-                    name = newName.ToString();
+                    name = newName;
                 }
             }
 
@@ -138,7 +139,7 @@ namespace Emby.Naming.Video
         /// <param name="namingOptions">The naming options.</param>
         /// <param name="newName">Clean name.</param>
         /// <returns>True if cleaning of name was successful.</returns>
-        public static bool TryCleanString([NotNullWhen(true)] string? name, NamingOptions namingOptions, out ReadOnlySpan<char> newName)
+        public static bool TryCleanString([NotNullWhen(true)] string? name, NamingOptions namingOptions, out string newName)
         {
             return CleanStringParser.TryClean(name, namingOptions.CleanStringRegexes, out newName);
         }

Emby.Notifications/CoreNotificationTypes.cs

@@ -24,63 +24,63 @@ namespace Emby.Notifications
             {
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.ApplicationUpdateInstalled.ToString()
+                     Type = nameof(NotificationType.ApplicationUpdateInstalled)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.InstallationFailed.ToString()
+                     Type = nameof(NotificationType.InstallationFailed)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.PluginInstalled.ToString()
+                     Type = nameof(NotificationType.PluginInstalled)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.PluginError.ToString()
+                     Type = nameof(NotificationType.PluginError)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.PluginUninstalled.ToString()
+                     Type = nameof(NotificationType.PluginUninstalled)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.PluginUpdateInstalled.ToString()
+                     Type = nameof(NotificationType.PluginUpdateInstalled)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.ServerRestartRequired.ToString()
+                     Type = nameof(NotificationType.ServerRestartRequired)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.TaskFailed.ToString()
+                     Type = nameof(NotificationType.TaskFailed)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.NewLibraryContent.ToString()
+                     Type = nameof(NotificationType.NewLibraryContent)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.AudioPlayback.ToString()
+                     Type = nameof(NotificationType.AudioPlayback)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.VideoPlayback.ToString()
+                     Type = nameof(NotificationType.VideoPlayback)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.AudioPlaybackStopped.ToString()
+                     Type = nameof(NotificationType.AudioPlaybackStopped)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.VideoPlaybackStopped.ToString()
+                     Type = nameof(NotificationType.VideoPlaybackStopped)
                 },
                 new NotificationTypeInfo
                 {
-                     Type = NotificationType.UserLockedOut.ToString()
+                     Type = nameof(NotificationType.UserLockedOut)
                 },
                 new NotificationTypeInfo
                 {
-                    Type = NotificationType.ApplicationUpdateAvailable.ToString()
+                    Type = nameof(NotificationType.ApplicationUpdateAvailable)
                 }
             };
 
@@ -98,7 +98,7 @@ namespace Emby.Notifications
 
         private void Update(NotificationTypeInfo note)
         {
-            note.Name = _localization.GetLocalizedString("NotificationOption" + note.Type) ?? note.Type;
+            note.Name = _localization.GetLocalizedString("NotificationOption" + note.Type);
 
             note.IsBasedOnUserEvent = note.Type.IndexOf("Playback", StringComparison.OrdinalIgnoreCase) != -1;
 

Emby.Notifications/Emby.Notifications.csproj

@@ -24,7 +24,7 @@
   <!-- Code analyzers-->
   <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
     <PackageReference Include="SerilogAnalyzer" Version="0.15.0" PrivateAssets="All" />
-    <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="All" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.376" PrivateAssets="All" />
     <PackageReference Include="SmartAnalyzers.MultithreadingAnalyzer" Version="1.1.31" PrivateAssets="All" />
   </ItemGroup>
 

Emby.Notifications/NotificationEntryPoint.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using Jellyfin.Data.Events;
+using Jellyfin.Extensions;
 using MediaBrowser.Common.Configuration;
 using MediaBrowser.Controller;
 using MediaBrowser.Controller.Entities;
@@ -104,7 +105,7 @@ namespace Emby.Notifications
 
             var type = entry.Type;
 
-            if (string.IsNullOrEmpty(type) || !_coreNotificationTypes.Contains(type, StringComparer.OrdinalIgnoreCase))
+            if (string.IsNullOrEmpty(type) || !_coreNotificationTypes.Contains(type, StringComparison.OrdinalIgnoreCase))
             {
                 return;
             }

Emby.Photos/Emby.Photos.csproj

@@ -26,7 +26,7 @@
 
   <!-- Code Analyzers-->
   <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
-    <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="All" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.376" PrivateAssets="All" />
     <PackageReference Include="SerilogAnalyzer" Version="0.15.0" PrivateAssets="All" />
     <PackageReference Include="SmartAnalyzers.MultithreadingAnalyzer" Version="1.1.31" PrivateAssets="All" />
   </ItemGroup>

Emby.Photos/PhotoProvider.cs

@@ -3,6 +3,7 @@ using System.IO;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
+using Jellyfin.Extensions;
 using MediaBrowser.Controller.Drawing;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Library;
@@ -60,7 +61,7 @@ namespace Emby.Photos
             item.SetImagePath(ImageType.Primary, item.Path);
 
             // Examples: https://github.com/mono/taglib-sharp/blob/a5f6949a53d09ce63ee7495580d6802921a21f14/tests/fixtures/TagLib.Tests.Images/NullOrientationTest.cs
-            if (_includeExtensions.Contains(Path.GetExtension(item.Path), StringComparer.OrdinalIgnoreCase))
+            if (_includeExtensions.Contains(Path.GetExtension(item.Path), StringComparison.OrdinalIgnoreCase))
             {
                 try
                 {

Emby.Server.Implementations/AppBase/BaseConfigurationManager.cs

@@ -301,7 +301,7 @@ namespace Emby.Server.Implementations.AppBase
         {
             return _configurations.GetOrAdd(
                 key,
-                (k, configurationManager) =>
+                static (k, configurationManager) =>
                 {
                     var file = configurationManager.GetConfigurationFile(k);
 
@@ -371,7 +371,7 @@ namespace Emby.Server.Implementations.AppBase
                 NewConfiguration = configuration
             });
 
-            _configurations.AddOrUpdate(key, configuration, (k, v) => configuration);
+            _configurations.AddOrUpdate(key, configuration, (_, _) => configuration);
 
             var path = GetConfigurationFile(key);
             Directory.CreateDirectory(Path.GetDirectoryName(path));

Emby.Server.Implementations/AppBase/ConfigurationHelper.cs

@@ -1,6 +1,5 @@
 using System;
 using System.IO;
-using System.Linq;
 using MediaBrowser.Model.Serialization;
 
 namespace Emby.Server.Implementations.AppBase
@@ -41,20 +40,19 @@ namespace Emby.Server.Implementations.AppBase
             xmlSerializer.SerializeToStream(configuration, stream);
 
             // Take the object we just got and serialize it back to bytes
-            byte[] newBytes = stream.GetBuffer();
-            int newBytesLen = (int)stream.Length;
+            Span<byte> newBytes = stream.GetBuffer().AsSpan(0, (int)stream.Length);
 
             // If the file didn't exist before, or if something has changed, re-save
-            if (buffer == null || !newBytes.AsSpan(0, newBytesLen).SequenceEqual(buffer))
+            if (buffer == null || !newBytes.SequenceEqual(buffer))
             {
                 var directory = Path.GetDirectoryName(path) ?? throw new ArgumentException($"Provided path ({path}) is not valid.", nameof(path));
 
                 Directory.CreateDirectory(directory);
+
                 // Save it after load in case we got new items
-                // use FileShare.None as this bypasses dotnet bug dotnet/runtime#42790 .
                 using (var fs = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None))
                 {
-                    fs.Write(newBytes, 0, newBytesLen);
+                    fs.Write(newBytes);
                 }
             }
 

Emby.Server.Implementations/ApplicationHost.cs

@@ -3,6 +3,7 @@
 #pragma warning disable CS1591
 
 using System;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Globalization;
@@ -18,6 +19,7 @@ using Emby.Dlna;
 using Emby.Dlna.Main;
 using Emby.Dlna.Ssdp;
 using Emby.Drawing;
+using Emby.Naming.Common;
 using Emby.Notifications;
 using Emby.Photos;
 using Emby.Server.Implementations.Archiving;
@@ -56,6 +58,7 @@ using MediaBrowser.Common.Updates;
 using MediaBrowser.Controller;
 using MediaBrowser.Controller.Channels;
 using MediaBrowser.Controller.Chapters;
+using MediaBrowser.Controller.ClientEvent;
 using MediaBrowser.Controller.Collections;
 using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Dlna;
@@ -117,7 +120,7 @@ namespace Emby.Server.Implementations
         /// <summary>
         /// The disposable parts.
         /// </summary>
-        private readonly List<IDisposable> _disposableParts = new List<IDisposable>();
+        private readonly ConcurrentDictionary<IDisposable, byte> _disposableParts = new();
 
         private readonly IFileSystem _fileSystemManager;
         private readonly IConfiguration _startupConfig;
@@ -128,7 +131,6 @@ namespace Emby.Server.Implementations
         private List<Type> _creatingInstances;
         private IMediaEncoder _mediaEncoder;
         private ISessionManager _sessionManager;
-        private string[] _urlPrefixes;
 
         /// <summary>
         /// Gets or sets all concrete types.
@@ -147,25 +149,20 @@ namespace Emby.Server.Implementations
         /// <param name="loggerFactory">Instance of the <see cref="ILoggerFactory"/> interface.</param>
         /// <param name="options">Instance of the <see cref="IStartupOptions"/> interface.</param>
         /// <param name="startupConfig">The <see cref="IConfiguration" /> interface.</param>
-        /// <param name="fileSystem">Instance of the <see cref="IFileSystem"/> interface.</param>
-        /// <param name="serviceCollection">Instance of the <see cref="IServiceCollection"/> interface.</param>
         public ApplicationHost(
             IServerApplicationPaths applicationPaths,
             ILoggerFactory loggerFactory,
             IStartupOptions options,
-            IConfiguration startupConfig,
-            IFileSystem fileSystem,
-            IServiceCollection serviceCollection)
+            IConfiguration startupConfig)
         {
             ApplicationPaths = applicationPaths;
             LoggerFactory = loggerFactory;
             _startupOptions = options;
             _startupConfig = startupConfig;
-            _fileSystemManager = fileSystem;
-            ServiceCollection = serviceCollection;
+            _fileSystemManager = new ManagedFileSystem(LoggerFactory.CreateLogger<ManagedFileSystem>(), applicationPaths);
 
             Logger = LoggerFactory.CreateLogger<ApplicationHost>();
-            fileSystem.AddShortcutHandler(new MbLinkShortcutHandler(fileSystem));
+            _fileSystemManager.AddShortcutHandler(new MbLinkShortcutHandler(_fileSystemManager));
 
             ApplicationVersion = typeof(ApplicationHost).Assembly.GetName().Version;
             ApplicationVersionString = ApplicationVersion.ToString(3);
@@ -214,7 +211,7 @@ namespace Emby.Server.Implementations
         /// <summary>
         /// Gets the <see cref="INetworkManager"/> singleton instance.
         /// </summary>
-        public INetworkManager NetManager { get; internal set; }
+        public INetworkManager NetManager { get; private set; }
 
         /// <summary>
         /// Gets a value indicating whether this instance has changes that require the entire application to restart.
@@ -230,24 +227,22 @@ namespace Emby.Server.Implementations
         /// </summary>
         protected ILogger<ApplicationHost> Logger { get; }
 
-        protected IServiceCollection ServiceCollection { get; }
-
         /// <summary>
         /// Gets the logger factory.
         /// </summary>
         protected ILoggerFactory LoggerFactory { get; }
 
         /// <summary>
-        /// Gets or sets the application paths.
+        /// Gets the application paths.
         /// </summary>
         /// <value>The application paths.</value>
-        protected IServerApplicationPaths ApplicationPaths { get; set; }
+        protected IServerApplicationPaths ApplicationPaths { get; }
 
         /// <summary>
-        /// Gets or sets the configuration manager.
+        /// Gets the configuration manager.
         /// </summary>
         /// <value>The configuration manager.</value>
-        public ServerConfigurationManager ConfigurationManager { get; set; }
+        public ServerConfigurationManager ConfigurationManager { get; }
 
         /// <summary>
         /// Gets or sets the service provider.
@@ -306,7 +301,7 @@ namespace Emby.Server.Implementations
         /// <inheritdoc/>
         public string Name => ApplicationProductName;
 
-        private CertificateInfo CertificateInfo { get; set; }
+        private string CertificatePath { get; set; }
 
         public X509Certificate2 Certificate { get; private set; }
 
@@ -318,22 +313,6 @@ namespace Emby.Server.Implementations
                 ? Environment.MachineName
                 : ConfigurationManager.Configuration.ServerName;
 
-        /// <summary>
-        /// Temporary function to migration network settings out of system.xml and into network.xml.
-        /// TODO: remove at the point when a fixed migration path has been decided upon.
-        /// </summary>
-        private void MigrateNetworkConfiguration()
-        {
-            string path = Path.Combine(ConfigurationManager.CommonApplicationPaths.ConfigurationDirectoryPath, "network.xml");
-            if (!File.Exists(path))
-            {
-                var networkSettings = new NetworkConfiguration();
-                ClassMigrationHelper.CopyProperties(ConfigurationManager.Configuration, networkSettings);
-                _xmlSerializer.SerializeToFile(networkSettings, path);
-                Logger.LogDebug("Successfully migrated network settings.");
-            }
-        }
-
         public string ExpandVirtualPath(string path)
         {
             var appPaths = ApplicationPaths;
@@ -350,22 +329,6 @@ namespace Emby.Server.Implementations
                 .Replace(appPaths.InternalMetadataPath, appPaths.VirtualInternalMetadataPath, StringComparison.OrdinalIgnoreCase);
         }
 
-        /// <summary>
-        /// Creates an instance of type and resolves all constructor dependencies.
-        /// </summary>
-        /// <param name="type">The type.</param>
-        /// <returns>System.Object.</returns>
-        public object CreateInstance(Type type)
-            => ActivatorUtilities.CreateInstance(ServiceProvider, type);
-
-        /// <summary>
-        /// Creates an instance of type and resolves all constructor dependencies.
-        /// </summary>
-        /// <typeparam name="T">The type.</typeparam>
-        /// <returns>T.</returns>
-        public T CreateInstance<T>()
-            => ActivatorUtilities.CreateInstance<T>(ServiceProvider);
-
         /// <summary>
         /// Creates the instance safe.
         /// </summary>
@@ -375,7 +338,7 @@ namespace Emby.Server.Implementations
         {
             _creatingInstances ??= new List<Type>();
 
-            if (_creatingInstances.IndexOf(type) != -1)
+            if (_creatingInstances.Contains(type))
             {
                 Logger.LogError("DI Loop detected in the attempted creation of {Type}", type.FullName);
                 foreach (var entry in _creatingInstances)
@@ -385,7 +348,7 @@ namespace Emby.Server.Implementations
 
                 _pluginManager.FailPlugin(type.Assembly);
 
-                throw new ExternalException("DI Loop detected.");
+                throw new TypeLoadException("DI Loop detected");
             }
 
             try
@@ -418,8 +381,15 @@ namespace Emby.Server.Implementations
         public IEnumerable<Type> GetExportTypes<T>()
         {
             var currentType = typeof(T);
-
-            return _allConcreteTypes.Where(i => currentType.IsAssignableFrom(i));
+            var numberOfConcreteTypes = _allConcreteTypes.Length;
+            for (var i = 0; i < numberOfConcreteTypes; i++)
+            {
+                var type = _allConcreteTypes[i];
+                if (currentType.IsAssignableFrom(type))
+                {
+                    yield return type;
+                }
+            }
         }
 
         /// <inheritdoc />
@@ -434,9 +404,9 @@ namespace Emby.Server.Implementations
 
             if (manageLifetime)
             {
-                lock (_disposableParts)
+                foreach (var part in parts.OfType<IDisposable>())
                 {
-                    _disposableParts.AddRange(parts.OfType<IDisposable>());
+                    _disposableParts.TryAdd(part, byte.MinValue);
                 }
             }
 
@@ -455,9 +425,9 @@ namespace Emby.Server.Implementations
 
             if (manageLifetime)
             {
-                lock (_disposableParts)
+                foreach (var part in parts.OfType<IDisposable>())
                 {
-                    _disposableParts.AddRange(parts.OfType<IDisposable>());
+                    _disposableParts.TryAdd(part, byte.MinValue);
                 }
             }
 
@@ -521,14 +491,12 @@ namespace Emby.Server.Implementations
         }
 
         /// <inheritdoc/>
-        public void Init()
+        public void Init(IServiceCollection serviceCollection)
         {
             DiscoverTypes();
 
             ConfigurationManager.AddParts(GetExports<IConfigurationFactory>());
 
-            // Have to migrate settings here as migration subsystem not yet initialised.
-            MigrateNetworkConfiguration();
             NetManager = new NetworkManager(ConfigurationManager, LoggerFactory.CreateLogger<NetworkManager>());
 
             // Initialize runtime stat collection
@@ -548,135 +516,133 @@ namespace Emby.Server.Implementations
                 HttpsPort = NetworkConfiguration.DefaultHttpsPort;
             }
 
-            CertificateInfo = new CertificateInfo
-            {
-                Path = networkConfiguration.CertificatePath,
-                Password = networkConfiguration.CertificatePassword
-            };
-            Certificate = GetCertificate(CertificateInfo);
+            CertificatePath = networkConfiguration.CertificatePath;
+            Certificate = GetCertificate(CertificatePath, networkConfiguration.CertificatePassword);
 
-            RegisterServices();
+            RegisterServices(serviceCollection);
 
-            _pluginManager.RegisterServices(ServiceCollection);
+            _pluginManager.RegisterServices(serviceCollection);
         }
 
         /// <summary>
         /// Registers services/resources with the service collection that will be available via DI.
         /// </summary>
-        protected virtual void RegisterServices()
+        /// <param name="serviceCollection">Instance of the <see cref="IServiceCollection"/> interface.</param>
+        protected virtual void RegisterServices(IServiceCollection serviceCollection)
         {
-            ServiceCollection.AddSingleton(_startupOptions);
+            serviceCollection.AddSingleton(_startupOptions);
 
-            ServiceCollection.AddMemoryCache();
+            serviceCollection.AddMemoryCache();
 
-            ServiceCollection.AddSingleton<IServerConfigurationManager>(ConfigurationManager);
-            ServiceCollection.AddSingleton<IConfigurationManager>(ConfigurationManager);
-            ServiceCollection.AddSingleton<IApplicationHost>(this);
-            ServiceCollection.AddSingleton<IPluginManager>(_pluginManager);
-            ServiceCollection.AddSingleton<IApplicationPaths>(ApplicationPaths);
+            serviceCollection.AddSingleton<IServerConfigurationManager>(ConfigurationManager);
+            serviceCollection.AddSingleton<IConfigurationManager>(ConfigurationManager);
+            serviceCollection.AddSingleton<IApplicationHost>(this);
+            serviceCollection.AddSingleton(_pluginManager);
+            serviceCollection.AddSingleton<IApplicationPaths>(ApplicationPaths);
 
-            ServiceCollection.AddSingleton(_fileSystemManager);
-            ServiceCollection.AddSingleton<TmdbClientManager>();
+            serviceCollection.AddSingleton(_fileSystemManager);
+            serviceCollection.AddSingleton<TmdbClientManager>();
 
-            ServiceCollection.AddSingleton(NetManager);
+            serviceCollection.AddSingleton(NetManager);
 
-            ServiceCollection.AddSingleton<ITaskManager, TaskManager>();
+            serviceCollection.AddSingleton<ITaskManager, TaskManager>();
 
-            ServiceCollection.AddSingleton(_xmlSerializer);
+            serviceCollection.AddSingleton(_xmlSerializer);
 
-            ServiceCollection.AddSingleton<IStreamHelper, StreamHelper>();
+            serviceCollection.AddSingleton<IStreamHelper, StreamHelper>();
 
-            ServiceCollection.AddSingleton<ICryptoProvider, CryptographyProvider>();
+            serviceCollection.AddSingleton<ICryptoProvider, CryptographyProvider>();
 
-            ServiceCollection.AddSingleton<ISocketFactory, SocketFactory>();
+            serviceCollection.AddSingleton<ISocketFactory, SocketFactory>();
 
-            ServiceCollection.AddSingleton<IInstallationManager, InstallationManager>();
+            serviceCollection.AddSingleton<IInstallationManager, InstallationManager>();
 
-            ServiceCollection.AddSingleton<IZipClient, ZipClient>();
+            serviceCollection.AddSingleton<IZipClient, ZipClient>();
 
-            ServiceCollection.AddSingleton<IServerApplicationHost>(this);
-            ServiceCollection.AddSingleton<IServerApplicationPaths>(ApplicationPaths);
+            serviceCollection.AddSingleton<IServerApplicationHost>(this);
+            serviceCollection.AddSingleton(ApplicationPaths);
 
-            ServiceCollection.AddSingleton<ILocalizationManager, LocalizationManager>();
+            serviceCollection.AddSingleton<ILocalizationManager, LocalizationManager>();
 
-            ServiceCollection.AddSingleton<IBlurayExaminer, BdInfoExaminer>();
+            serviceCollection.AddSingleton<IBlurayExaminer, BdInfoExaminer>();
 
-            ServiceCollection.AddSingleton<IUserDataRepository, SqliteUserDataRepository>();
-            ServiceCollection.AddSingleton<IUserDataManager, UserDataManager>();
+            serviceCollection.AddSingleton<IUserDataRepository, SqliteUserDataRepository>();
+            serviceCollection.AddSingleton<IUserDataManager, UserDataManager>();
 
-            ServiceCollection.AddSingleton<IItemRepository, SqliteItemRepository>();
+            serviceCollection.AddSingleton<IItemRepository, SqliteItemRepository>();
 
-            ServiceCollection.AddSingleton<IMediaEncoder, MediaBrowser.MediaEncoding.Encoder.MediaEncoder>();
-            ServiceCollection.AddSingleton<EncodingHelper>();
+            serviceCollection.AddSingleton<IMediaEncoder, MediaBrowser.MediaEncoding.Encoder.MediaEncoder>();
+            serviceCollection.AddSingleton<EncodingHelper>();
 
             // TODO: Refactor to eliminate the circular dependencies here so that Lazy<T> isn't required
-            ServiceCollection.AddTransient(provider => new Lazy<ILibraryMonitor>(provider.GetRequiredService<ILibraryMonitor>));
-            ServiceCollection.AddTransient(provider => new Lazy<IProviderManager>(provider.GetRequiredService<IProviderManager>));
-            ServiceCollection.AddTransient(provider => new Lazy<IUserViewManager>(provider.GetRequiredService<IUserViewManager>));
-            ServiceCollection.AddSingleton<ILibraryManager, LibraryManager>();
+            serviceCollection.AddTransient(provider => new Lazy<ILibraryMonitor>(provider.GetRequiredService<ILibraryMonitor>));
+            serviceCollection.AddTransient(provider => new Lazy<IProviderManager>(provider.GetRequiredService<IProviderManager>));
+            serviceCollection.AddTransient(provider => new Lazy<IUserViewManager>(provider.GetRequiredService<IUserViewManager>));
+            serviceCollection.AddSingleton<ILibraryManager, LibraryManager>();
+            serviceCollection.AddSingleton<NamingOptions>();
 
-            ServiceCollection.AddSingleton<IMusicManager, MusicManager>();
+            serviceCollection.AddSingleton<IMusicManager, MusicManager>();
 
-            ServiceCollection.AddSingleton<ILibraryMonitor, LibraryMonitor>();
+            serviceCollection.AddSingleton<ILibraryMonitor, LibraryMonitor>();
 
-            ServiceCollection.AddSingleton<ISearchEngine, SearchEngine>();
+            serviceCollection.AddSingleton<ISearchEngine, SearchEngine>();
 
-            ServiceCollection.AddSingleton<IWebSocketManager, WebSocketManager>();
+            serviceCollection.AddSingleton<IWebSocketManager, WebSocketManager>();
 
-            ServiceCollection.AddSingleton<IImageProcessor, ImageProcessor>();
+            serviceCollection.AddSingleton<IImageProcessor, ImageProcessor>();
 
-            ServiceCollection.AddSingleton<ITVSeriesManager, TVSeriesManager>();
+            serviceCollection.AddSingleton<ITVSeriesManager, TVSeriesManager>();
 
-            ServiceCollection.AddSingleton<IMediaSourceManager, MediaSourceManager>();
+            serviceCollection.AddSingleton<IMediaSourceManager, MediaSourceManager>();
 
-            ServiceCollection.AddSingleton<ISubtitleManager, SubtitleManager>();
+            serviceCollection.AddSingleton<ISubtitleManager, SubtitleManager>();
 
-            ServiceCollection.AddSingleton<IProviderManager, ProviderManager>();
+            serviceCollection.AddSingleton<IProviderManager, ProviderManager>();
 
             // TODO: Refactor to eliminate the circular dependency here so that Lazy<T> isn't required
-            ServiceCollection.AddTransient(provider => new Lazy<ILiveTvManager>(provider.GetRequiredService<ILiveTvManager>));
-            ServiceCollection.AddSingleton<IDtoService, DtoService>();
-
-            ServiceCollection.AddSingleton<IChannelManager, ChannelManager>();
+            serviceCollection.AddTransient(provider => new Lazy<ILiveTvManager>(provider.GetRequiredService<ILiveTvManager>));
+            serviceCollection.AddSingleton<IDtoService, DtoService>();
 
-            ServiceCollection.AddSingleton<ISessionManager, SessionManager>();
+            serviceCollection.AddSingleton<IChannelManager, ChannelManager>();
 
-            ServiceCollection.AddSingleton<IDlnaManager, DlnaManager>();
+            serviceCollection.AddSingleton<ISessionManager, SessionManager>();
 
-            ServiceCollection.AddSingleton<ICollectionManager, CollectionManager>();
+            serviceCollection.AddSingleton<IDlnaManager, DlnaManager>();
 
-            ServiceCollection.AddSingleton<IPlaylistManager, PlaylistManager>();
+            serviceCollection.AddSingleton<ICollectionManager, CollectionManager>();
 
-            ServiceCollection.AddSingleton<ISyncPlayManager, SyncPlayManager>();
+            serviceCollection.AddSingleton<IPlaylistManager, PlaylistManager>();
 
-            ServiceCollection.AddSingleton<LiveTvDtoService>();
-            ServiceCollection.AddSingleton<ILiveTvManager, LiveTvManager>();
+            serviceCollection.AddSingleton<ISyncPlayManager, SyncPlayManager>();
 
-            ServiceCollection.AddSingleton<IUserViewManager, UserViewManager>();
+            serviceCollection.AddSingleton<LiveTvDtoService>();
+            serviceCollection.AddSingleton<ILiveTvManager, LiveTvManager>();
 
-            ServiceCollection.AddSingleton<INotificationManager, NotificationManager>();
+            serviceCollection.AddSingleton<IUserViewManager, UserViewManager>();
 
-            ServiceCollection.AddSingleton<IDeviceDiscovery, DeviceDiscovery>();
+            serviceCollection.AddSingleton<INotificationManager, NotificationManager>();
 
-            ServiceCollection.AddSingleton<IChapterManager, ChapterManager>();
+            serviceCollection.AddSingleton<IDeviceDiscovery, DeviceDiscovery>();
 
-            ServiceCollection.AddSingleton<IEncodingManager, MediaEncoder.EncodingManager>();
+            serviceCollection.AddSingleton<IChapterManager, ChapterManager>();
 
-            ServiceCollection.AddScoped<ISessionContext, SessionContext>();
+            serviceCollection.AddSingleton<IEncodingManager, MediaEncoder.EncodingManager>();
 
-            ServiceCollection.AddSingleton<IAuthService, AuthService>();
-            ServiceCollection.AddSingleton<IQuickConnect, QuickConnectManager>();
+            serviceCollection.AddScoped<ISessionContext, SessionContext>();
 
-            ServiceCollection.AddSingleton<ISubtitleEncoder, MediaBrowser.MediaEncoding.Subtitles.SubtitleEncoder>();
+            serviceCollection.AddSingleton<IAuthService, AuthService>();
+            serviceCollection.AddSingleton<IQuickConnect, QuickConnectManager>();
 
-            ServiceCollection.AddSingleton<IAttachmentExtractor, MediaBrowser.MediaEncoding.Attachments.AttachmentExtractor>();
+            serviceCollection.AddSingleton<ISubtitleEncoder, MediaBrowser.MediaEncoding.Subtitles.SubtitleEncoder>();
 
-            ServiceCollection.AddSingleton<TranscodingJobHelper>();
-            ServiceCollection.AddScoped<MediaInfoHelper>();
-            ServiceCollection.AddScoped<AudioHelper>();
-            ServiceCollection.AddScoped<DynamicHlsHelper>();
+            serviceCollection.AddSingleton<IAttachmentExtractor, MediaBrowser.MediaEncoding.Attachments.AttachmentExtractor>();
 
-            ServiceCollection.AddSingleton<IDirectoryService, DirectoryService>();
+            serviceCollection.AddSingleton<TranscodingJobHelper>();
+            serviceCollection.AddScoped<MediaInfoHelper>();
+            serviceCollection.AddScoped<AudioHelper>();
+            serviceCollection.AddScoped<DynamicHlsHelper>();
+            serviceCollection.AddScoped<IClientEventLogger, ClientEventLogger>();
+            serviceCollection.AddSingleton<IDirectoryService, DirectoryService>();
         }
 
         /// <summary>
@@ -729,30 +695,27 @@ namespace Emby.Server.Implementations
             logger.LogInformation("Application directory: {ApplicationPath}", appPaths.ProgramSystemPath);
         }
 
-        private X509Certificate2 GetCertificate(CertificateInfo info)
+        private X509Certificate2 GetCertificate(string path, string password)
         {
-            var certificateLocation = info?.Path;
-
-            if (string.IsNullOrWhiteSpace(certificateLocation))
+            if (string.IsNullOrWhiteSpace(path))
             {
                 return null;
             }
 
             try
             {
-                if (!File.Exists(certificateLocation))
+                if (!File.Exists(path))
                 {
                     return null;
                 }
 
                 // Don't use an empty string password
-                var password = string.IsNullOrWhiteSpace(info.Password) ? null : info.Password;
+                password = string.IsNullOrWhiteSpace(password) ? null : password;
 
-                var localCert = new X509Certificate2(certificateLocation, password, X509KeyStorageFlags.UserKeySet);
-                // localCert.PrivateKey = PrivateKey.CreateFromFile(pvk_file).RSA;
+                var localCert = new X509Certificate2(path, password, X509KeyStorageFlags.UserKeySet);
                 if (!localCert.HasPrivateKey)
                 {
-                    Logger.LogError("No private key included in SSL cert {CertificateLocation}.", certificateLocation);
+                    Logger.LogError("No private key included in SSL cert {CertificateLocation}.", path);
                     return null;
                 }
 
@@ -760,7 +723,7 @@ namespace Emby.Server.Implementations
             }
             catch (Exception ex)
             {
-                Logger.LogError(ex, "Error loading cert from {CertificateLocation}", certificateLocation);
+                Logger.LogError(ex, "Error loading cert from {CertificateLocation}", path);
                 return null;
             }
         }
@@ -802,8 +765,6 @@ namespace Emby.Server.Implementations
 
             _pluginManager.CreatePlugins();
 
-            _urlPrefixes = GetUrlPrefixes().ToArray();
-
             Resolve<ILibraryManager>().AddParts(
                 GetExports<IResolverIgnoreRule>(),
                 GetExports<IItemResolver>(),
@@ -871,32 +832,12 @@ namespace Emby.Server.Implementations
             }
         }
 
-        private IEnumerable<string> GetUrlPrefixes()
-        {
-            var hosts = new[] { "+" };
-
-            return hosts.SelectMany(i =>
-            {
-                var prefixes = new List<string>
-                {
-                    "http://" + i + ":" + HttpPort + "/"
-                };
-
-                if (CertificateInfo != null)
-                {
-                    prefixes.Add("https://" + i + ":" + HttpsPort + "/");
-                }
-
-                return prefixes;
-            });
-        }
-
         /// <summary>
         /// Called when [configuration updated].
         /// </summary>
         /// <param name="sender">The sender.</param>
         /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
-        protected void OnConfigurationUpdated(object sender, EventArgs e)
+        private void OnConfigurationUpdated(object sender, EventArgs e)
         {
             var requiresRestart = false;
             var networkConfiguration = ConfigurationManager.GetNetworkConfiguration();
@@ -905,8 +846,8 @@ namespace Emby.Server.Implementations
             if (HttpPort != 0 && HttpsPort != 0)
             {
                 // Need to restart if ports have changed
-                if (networkConfiguration.HttpServerPortNumber != HttpPort ||
-                    networkConfiguration.HttpsPortNumber != HttpsPort)
+                if (networkConfiguration.HttpServerPortNumber != HttpPort
+                    || networkConfiguration.HttpsPortNumber != HttpsPort)
                 {
                     if (ConfigurationManager.Configuration.IsPortAuthorized)
                     {
@@ -918,11 +859,6 @@ namespace Emby.Server.Implementations
                 }
             }
 
-            if (!_urlPrefixes.SequenceEqual(GetUrlPrefixes(), StringComparer.OrdinalIgnoreCase))
-            {
-                requiresRestart = true;
-            }
-
             if (ValidateSslCertificate(networkConfiguration))
             {
                 requiresRestart = true;
@@ -946,7 +882,7 @@ namespace Emby.Server.Implementations
             var newPath = networkConfig.CertificatePath;
 
             if (!string.IsNullOrWhiteSpace(newPath)
-                && !string.Equals(CertificateInfo?.Path, newPath, StringComparison.Ordinal))
+                && !string.Equals(CertificatePath, newPath, StringComparison.Ordinal))
             {
                 if (File.Exists(newPath))
                 {
@@ -964,7 +900,7 @@ namespace Emby.Server.Implementations
         }
 
         /// <summary>
-        /// Notifies that the kernel that a change has been made that requires a restart.
+        /// Notifies the kernel that a change has been made that requires a restart.
         /// </summary>
         public void NotifyPendingRestart()
         {
@@ -1074,9 +1010,9 @@ namespace Emby.Server.Implementations
         /// <summary>
         /// Gets the system status.
         /// </summary>
-        /// <param name="source">Where this request originated.</param>
+        /// <param name="request">Where this request originated.</param>
         /// <returns>SystemInfo.</returns>
-        public SystemInfo GetSystemInfo(IPAddress source)
+        public SystemInfo GetSystemInfo(HttpRequest request)
         {
             return new SystemInfo
             {
@@ -1098,19 +1034,14 @@ namespace Emby.Server.Implementations
                 CanLaunchWebBrowser = CanLaunchWebBrowser,
                 TranscodingTempPath = ConfigurationManager.GetTranscodePath(),
                 ServerName = FriendlyName,
-                LocalAddress = GetSmartApiUrl(source),
+                LocalAddress = GetSmartApiUrl(request),
                 SupportsLibraryMonitor = true,
                 SystemArchitecture = RuntimeInformation.OSArchitecture,
                 PackageName = _startupOptions.PackageName
             };
         }
 
-        public IEnumerable<WakeOnLanInfo> GetWakeOnLanInfo()
-            => NetManager.GetMacAddresses()
-                .Select(i => new WakeOnLanInfo(i))
-                .ToList();
-
-        public PublicSystemInfo GetPublicSystemInfo(IPAddress address)
+        public PublicSystemInfo GetPublicSystemInfo(HttpRequest request)
         {
             return new PublicSystemInfo
             {
@@ -1119,13 +1050,13 @@ namespace Emby.Server.Implementations
                 Id = SystemId,
                 OperatingSystem = MediaBrowser.Common.System.OperatingSystem.Id.ToString(),
                 ServerName = FriendlyName,
-                LocalAddress = GetSmartApiUrl(address),
+                LocalAddress = GetSmartApiUrl(request),
                 StartupWizardCompleted = ConfigurationManager.CommonConfiguration.IsStartupWizardCompleted
             };
         }
 
         /// <inheritdoc/>
-        public string GetSmartApiUrl(IPAddress remoteAddr, int? port = null)
+        public string GetSmartApiUrl(IPAddress remoteAddr)
         {
             // Published server ends with a /
             if (!string.IsNullOrEmpty(PublishedServerUrl))
@@ -1134,19 +1065,25 @@ namespace Emby.Server.Implementations
                 return PublishedServerUrl.Trim('/');
             }
 
-            string smart = NetManager.GetBindInterface(remoteAddr, out port);
-            // If the smartAPI doesn't start with http then treat it as a host or ip.
-            if (smart.StartsWith("http", StringComparison.OrdinalIgnoreCase))
-            {
-                return smart.Trim('/');
-            }
-
+            string smart = NetManager.GetBindInterface(remoteAddr, out var port);
             return GetLocalApiUrl(smart.Trim('/'), null, port);
         }
 
         /// <inheritdoc/>
-        public string GetSmartApiUrl(HttpRequest request, int? port = null)
+        public string GetSmartApiUrl(HttpRequest request)
         {
+            // Return the host in the HTTP request as the API url
+            if (ConfigurationManager.GetNetworkConfiguration().EnablePublishedServerUriByRequest)
+            {
+                int? requestPort = request.Host.Port;
+                if ((requestPort == 80 && string.Equals(request.Scheme, "http", StringComparison.OrdinalIgnoreCase)) || (requestPort == 443 && string.Equals(request.Scheme, "https", StringComparison.OrdinalIgnoreCase)))
+                {
+                    requestPort = -1;
+                }
+
+                return GetLocalApiUrl(request.Host.Host, request.Scheme, requestPort);
+            }
+
             // Published server ends with a /
             if (!string.IsNullOrEmpty(PublishedServerUrl))
             {
@@ -1154,18 +1091,12 @@ namespace Emby.Server.Implementations
                 return PublishedServerUrl.Trim('/');
             }
 
-            string smart = NetManager.GetBindInterface(request, out port);
-            // If the smartAPI doesn't start with http then treat it as a host or ip.
-            if (smart.StartsWith("http", StringComparison.OrdinalIgnoreCase))
-            {
-                return smart.Trim('/');
-            }
-
+            string smart = NetManager.GetBindInterface(request, out var port);
             return GetLocalApiUrl(smart.Trim('/'), request.Scheme, port);
         }
 
         /// <inheritdoc/>
-        public string GetSmartApiUrl(string hostname, int? port = null)
+        public string GetSmartApiUrl(string hostname)
         {
             // Published server ends with a /
             if (!string.IsNullOrEmpty(PublishedServerUrl))
@@ -1174,31 +1105,29 @@ namespace Emby.Server.Implementations
                 return PublishedServerUrl.Trim('/');
             }
 
-            string smart = NetManager.GetBindInterface(hostname, out port);
-
-            // If the smartAPI doesn't start with http then treat it as a host or ip.
-            if (smart.StartsWith("http", StringComparison.OrdinalIgnoreCase))
-            {
-                return smart.Trim('/');
-            }
-
+            string smart = NetManager.GetBindInterface(hostname, out var port);
             return GetLocalApiUrl(smart.Trim('/'), null, port);
         }
 
         /// <inheritdoc/>
-        public string GetLoopbackHttpApiUrl()
+        public string GetApiUrlForLocalAccess(bool allowHttps = true)
         {
-            if (NetManager.IsIP6Enabled)
-            {
-                return GetLocalApiUrl("::1", Uri.UriSchemeHttp, HttpPort);
-            }
-
-            return GetLocalApiUrl("127.0.0.1", Uri.UriSchemeHttp, HttpPort);
+            // With an empty source, the port will be null
+            string smart = NetManager.GetBindInterface(string.Empty, out _);
+            var scheme = !allowHttps ? Uri.UriSchemeHttp : null;
+            int? port = !allowHttps ? HttpPort : null;
+            return GetLocalApiUrl(smart.Trim('/'), scheme, port);
         }
 
         /// <inheritdoc/>
         public string GetLocalApiUrl(string hostname, string scheme = null, int? port = null)
         {
+            // If the smartAPI doesn't start with http then treat it as a host or ip.
+            if (hostname.StartsWith("http", StringComparison.OrdinalIgnoreCase))
+            {
+                return hostname.TrimEnd('/');
+            }
+
             // NOTE: If no BaseUrl is set then UriBuilder appends a trailing slash, but if there is no BaseUrl it does
             // not. For consistency, always trim the trailing slash.
             return new UriBuilder
@@ -1272,12 +1201,15 @@ namespace Emby.Server.Implementations
 
                 Logger.LogInformation("Disposing {Type}", type.Name);
 
-                var parts = _disposableParts.Distinct().Where(i => i.GetType() != type).ToList();
-                _disposableParts.Clear();
-
-                foreach (var part in parts)
+                foreach (var (part, _) in _disposableParts)
                 {
-                    Logger.LogInformation("Disposing {Type}", part.GetType().Name);
+                    var partType = part.GetType();
+                    if (partType == type)
+                    {
+                        continue;
+                    }
+
+                    Logger.LogInformation("Disposing {Type}", partType.Name);
 
                     try
                     {
@@ -1285,19 +1217,14 @@ namespace Emby.Server.Implementations
                     }
                     catch (Exception ex)
                     {
-                        Logger.LogError(ex, "Error disposing {Type}", part.GetType().Name);
+                        Logger.LogError(ex, "Error disposing {Type}", partType.Name);
                     }
                 }
+
+                _disposableParts.Clear();
             }
 
             _disposed = true;
         }
     }
-
-    internal class CertificateInfo
-    {
-        public string Path { get; set; }
-
-        public string Password { get; set; }
-    }
 }

Emby.Server.Implementations/Archiving/ZipClient.cs

@@ -1,11 +1,8 @@
 using System.IO;
 using MediaBrowser.Model.IO;
-using SharpCompress.Archives.SevenZip;
-using SharpCompress.Archives.Tar;
 using SharpCompress.Common;
 using SharpCompress.Readers;
 using SharpCompress.Readers.GZip;
-using SharpCompress.Readers.Zip;
 
 namespace Emby.Server.Implementations.Archiving
 {
@@ -14,53 +11,6 @@ namespace Emby.Server.Implementations.Archiving
     /// </summary>
     public class ZipClient : IZipClient
     {
-        /// <summary>
-        /// Extracts all.
-        /// </summary>
-        /// <param name="sourceFile">The source file.</param>
-        /// <param name="targetPath">The target path.</param>
-        /// <param name="overwriteExistingFiles">if set to <c>true</c> [overwrite existing files].</param>
-        public void ExtractAll(string sourceFile, string targetPath, bool overwriteExistingFiles)
-        {
-            using var fileStream = File.OpenRead(sourceFile);
-            ExtractAll(fileStream, targetPath, overwriteExistingFiles);
-        }
-
-        /// <summary>
-        /// Extracts all.
-        /// </summary>
-        /// <param name="source">The source.</param>
-        /// <param name="targetPath">The target path.</param>
-        /// <param name="overwriteExistingFiles">if set to <c>true</c> [overwrite existing files].</param>
-        public void ExtractAll(Stream source, string targetPath, bool overwriteExistingFiles)
-        {
-            using var reader = ReaderFactory.Open(source);
-            var options = new ExtractionOptions
-            {
-                ExtractFullPath = true
-            };
-
-            if (overwriteExistingFiles)
-            {
-                options.Overwrite = true;
-            }
-
-            reader.WriteAllToDirectory(targetPath, options);
-        }
-
-        /// <inheritdoc />
-        public void ExtractAllFromZip(Stream source, string targetPath, bool overwriteExistingFiles)
-        {
-            using var reader = ZipReader.Open(source);
-            var options = new ExtractionOptions
-            {
-                ExtractFullPath = true,
-                Overwrite = overwriteExistingFiles
-            };
-
-            reader.WriteAllToDirectory(targetPath, options);
-        }
-
         /// <inheritdoc />
         public void ExtractAllFromGz(Stream source, string targetPath, bool overwriteExistingFiles)
         {
@@ -71,6 +21,7 @@ namespace Emby.Server.Implementations.Archiving
                 Overwrite = overwriteExistingFiles
             };
 
+            Directory.CreateDirectory(targetPath);
             reader.WriteAllToDirectory(targetPath, options);
         }
 
@@ -91,67 +42,5 @@ namespace Emby.Server.Implementations.Archiving
                 reader.WriteEntryToFile(Path.Combine(targetPath, filename));
             }
         }
-
-        /// <summary>
-        /// Extracts all from7z.
-        /// </summary>
-        /// <param name="sourceFile">The source file.</param>
-        /// <param name="targetPath">The target path.</param>
-        /// <param name="overwriteExistingFiles">if set to <c>true</c> [overwrite existing files].</param>
-        public void ExtractAllFrom7z(string sourceFile, string targetPath, bool overwriteExistingFiles)
-        {
-            using var fileStream = File.OpenRead(sourceFile);
-            ExtractAllFrom7z(fileStream, targetPath, overwriteExistingFiles);
-        }
-
-        /// <summary>
-        /// Extracts all from7z.
-        /// </summary>
-        /// <param name="source">The source.</param>
-        /// <param name="targetPath">The target path.</param>
-        /// <param name="overwriteExistingFiles">if set to <c>true</c> [overwrite existing files].</param>
-        public void ExtractAllFrom7z(Stream source, string targetPath, bool overwriteExistingFiles)
-        {
-            using var archive = SevenZipArchive.Open(source);
-            using var reader = archive.ExtractAllEntries();
-            var options = new ExtractionOptions
-            {
-                ExtractFullPath = true,
-                Overwrite = overwriteExistingFiles
-            };
-
-            reader.WriteAllToDirectory(targetPath, options);
-        }
-
-        /// <summary>
-        /// Extracts all from tar.
-        /// </summary>
-        /// <param name="sourceFile">The source file.</param>
-        /// <param name="targetPath">The target path.</param>
-        /// <param name="overwriteExistingFiles">if set to <c>true</c> [overwrite existing files].</param>
-        public void ExtractAllFromTar(string sourceFile, string targetPath, bool overwriteExistingFiles)
-        {
-            using var fileStream = File.OpenRead(sourceFile);
-            ExtractAllFromTar(fileStream, targetPath, overwriteExistingFiles);
-        }
-
-        /// <summary>
-        /// Extracts all from tar.
-        /// </summary>
-        /// <param name="source">The source.</param>
-        /// <param name="targetPath">The target path.</param>
-        /// <param name="overwriteExistingFiles">if set to <c>true</c> [overwrite existing files].</param>
-        public void ExtractAllFromTar(Stream source, string targetPath, bool overwriteExistingFiles)
-        {
-            using var archive = TarArchive.Open(source);
-            using var reader = archive.ExtractAllEntries();
-            var options = new ExtractionOptions
-            {
-                ExtractFullPath = true,
-                Overwrite = overwriteExistingFiles
-            };
-
-            reader.WriteAllToDirectory(targetPath, options);
-        }
     }
 }

Emby.Server.Implementations/Channels/ChannelManager.cs

@@ -10,8 +10,9 @@ using System.Threading;
 using System.Threading.Tasks;
 using Jellyfin.Data.Entities;
 using Jellyfin.Data.Enums;
-using MediaBrowser.Common.Extensions;
+using Jellyfin.Extensions;
 using Jellyfin.Extensions.Json;
+using MediaBrowser.Common.Extensions;
 using MediaBrowser.Common.Progress;
 using MediaBrowser.Controller.Channels;
 using MediaBrowser.Controller.Configuration;
@@ -129,16 +130,14 @@ namespace Emby.Server.Implementations.Channels
             var internalChannel = _libraryManager.GetItemById(item.ChannelId);
             if (internalChannel == null)
             {
-                throw new ArgumentException();
+                throw new ArgumentException(nameof(item.ChannelId));
             }
 
             var channel = Channels.FirstOrDefault(i => GetInternalChannelId(i.Name).Equals(internalChannel.Id));
 
-            var supportsDelete = channel as ISupportsDelete;
-
-            if (supportsDelete == null)
+            if (channel is not ISupportsDelete supportsDelete)
             {
-                throw new ArgumentException();
+                throw new ArgumentException(nameof(channel));
             }
 
             return supportsDelete.DeleteItem(item.ExternalId, CancellationToken.None);
@@ -179,7 +178,7 @@ namespace Emby.Server.Implementations.Channels
                     try
                     {
                         return (GetChannelProvider(i) is IHasFolderAttributes hasAttributes
-                            && hasAttributes.Attributes.Contains("Recordings", StringComparer.OrdinalIgnoreCase)) == val;
+                            && hasAttributes.Attributes.Contains("Recordings", StringComparison.OrdinalIgnoreCase)) == val;
                     }
                     catch
                     {
@@ -541,7 +540,7 @@ namespace Emby.Server.Implementations.Channels
             return _libraryManager.GetItemIds(
                 new InternalItemsQuery
                 {
-                    IncludeItemTypes = new[] { nameof(Channel) },
+                    IncludeItemTypes = new[] { BaseItemKind.Channel },
                     OrderBy = new[] { (ItemSortBy.SortName, SortOrder.Ascending) }
                 }).Select(i => GetChannelFeatures(i)).ToArray();
         }
@@ -586,7 +585,7 @@ namespace Emby.Server.Implementations.Channels
         {
             var supportsLatest = provider is ISupportsLatestMedia;
 
-            return new ChannelFeatures
+            return new ChannelFeatures(channel.Name, channel.Id)
             {
                 CanFilter = !features.MaxPageSize.HasValue,
                 CanSearch = provider is ISearchableChannel,
@@ -596,8 +595,6 @@ namespace Emby.Server.Implementations.Channels
                 MediaTypes = features.MediaTypes.ToArray(),
                 SupportsSortOrderToggle = features.SupportsSortOrderToggle,
                 SupportsLatestMedia = supportsLatest,
-                Name = channel.Name,
-                Id = channel.Id.ToString("N", CultureInfo.InvariantCulture),
                 SupportsContentDownloading = features.SupportsContentDownloading,
                 AutoRefreshLevels = features.AutoRefreshLevels
             };
@@ -1077,14 +1074,6 @@ namespace Emby.Server.Implementations.Channels
                 forceUpdate = true;
             }
 
-            // was used for status
-            // if (!string.Equals(item.ExternalEtag ?? string.Empty, info.Etag ?? string.Empty, StringComparison.Ordinal))
-            // {
-            //    item.ExternalEtag = info.Etag;
-            //    forceUpdate = true;
-            //    _logger.LogDebug("Forcing update due to ExternalEtag {0}", item.Name);
-            // }
-
             if (!internalChannelId.Equals(item.ChannelId))
             {
                 forceUpdate = true;
@@ -1145,7 +1134,7 @@ namespace Emby.Server.Implementations.Channels
 
             if (!info.IsLiveStream)
             {
-                if (item.Tags.Contains("livestream", StringComparer.OrdinalIgnoreCase))
+                if (item.Tags.Contains("livestream", StringComparison.OrdinalIgnoreCase))
                 {
                     item.Tags = item.Tags.Except(new[] { "livestream" }, StringComparer.OrdinalIgnoreCase).ToArray();
                     _logger.LogDebug("Forcing update due to Tags {0}", item.Name);
@@ -1154,7 +1143,7 @@ namespace Emby.Server.Implementations.Channels
             }
             else
             {
-                if (!item.Tags.Contains("livestream", StringComparer.OrdinalIgnoreCase))
+                if (!item.Tags.Contains("livestream", StringComparison.OrdinalIgnoreCase))
                 {
                     item.Tags = item.Tags.Concat(new[] { "livestream" }).ToArray();
                     _logger.LogDebug("Forcing update due to Tags {0}", item.Name);

Emby.Server.Implementations/Channels/ChannelPostScanTask.cs

@@ -2,6 +2,7 @@ using System;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
+using Jellyfin.Data.Enums;
 using MediaBrowser.Controller.Channels;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Library;
@@ -51,7 +52,7 @@ namespace Emby.Server.Implementations.Channels
 
             var uninstalledChannels = _libraryManager.GetItemList(new InternalItemsQuery
             {
-                IncludeItemTypes = new[] { nameof(Channel) },
+                IncludeItemTypes = new[] { BaseItemKind.Channel },
                 ExcludeItemIds = installedChannelIds.ToArray()
             });
 

Emby.Server.Implementations/Collections/CollectionManager.cs

@@ -140,7 +140,7 @@ namespace Emby.Server.Implementations.Collections
 
             if (parentFolder == null)
             {
-                throw new ArgumentException();
+                throw new ArgumentException(nameof(parentFolder));
             }
 
             var path = Path.Combine(parentFolder.Path, folderName);

Emby.Server.Implementations/Cryptography/CryptographyProvider.cs

@@ -1,17 +1,20 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Security.Cryptography;
+using System.Text;
 using MediaBrowser.Common.Extensions;
 using MediaBrowser.Model.Cryptography;
-using static MediaBrowser.Common.Cryptography.Constants;
+using static MediaBrowser.Model.Cryptography.Constants;
 
 namespace Emby.Server.Implementations.Cryptography
 {
     /// <summary>
     /// Class providing abstractions over cryptographic functions.
     /// </summary>
-    public class CryptographyProvider : ICryptoProvider, IDisposable
+    public class CryptographyProvider : ICryptoProvider
     {
+        // TODO: remove when not needed for backwards compat
         private static readonly HashSet<string> _supportedHashMethods = new HashSet<string>()
             {
                 "MD5",
@@ -30,71 +33,71 @@ namespace Emby.Server.Implementations.Cryptography
                 "System.Security.Cryptography.SHA512"
             };
 
-        private RandomNumberGenerator _randomNumberGenerator;
-
-        private bool _disposed;
+        /// <inheritdoc />
+        public string DefaultHashMethod => "PBKDF2-SHA512";
 
-        /// <summary>
-        /// Initializes a new instance of the <see cref="CryptographyProvider"/> class.
-        /// </summary>
-        public CryptographyProvider()
+        /// <inheritdoc />
+        public PasswordHash CreatePasswordHash(ReadOnlySpan<char> password)
         {
-            // FIXME: When we get DotNet Standard 2.1 we need to revisit how we do the crypto
-            // Currently supported hash methods from https://docs.microsoft.com/en-us/dotnet/api/system.security.cryptography.cryptoconfig?view=netcore-2.1
-            // there might be a better way to autogenerate this list as dotnet updates, but I couldn't find one
-            // Please note the default method of PBKDF2 is not included, it cannot be used to generate hashes cleanly as it is actually a pbkdf with sha1
-            _randomNumberGenerator = RandomNumberGenerator.Create();
+            byte[] salt = GenerateSalt();
+            return new PasswordHash(
+                DefaultHashMethod,
+                Rfc2898DeriveBytes.Pbkdf2(
+                    password,
+                    salt,
+                    DefaultIterations,
+                    HashAlgorithmName.SHA512,
+                    DefaultOutputLength),
+                salt,
+                new Dictionary<string, string>
+                {
+                    { "iterations", DefaultIterations.ToString(CultureInfo.InvariantCulture) }
+                });
         }
 
         /// <inheritdoc />
-        public string DefaultHashMethod => "PBKDF2";
-
-        /// <inheritdoc />
-        public IEnumerable<string> GetSupportedHashMethods()
-            => _supportedHashMethods;
-
-        private byte[] PBKDF2(string method, byte[] bytes, byte[] salt, int iterations)
+        public bool Verify(PasswordHash hash, ReadOnlySpan<char> password)
         {
-            // downgrading for now as we need this library to be dotnetstandard compliant
-            // with this downgrade we'll add a check to make sure we're on the downgrade method at the moment
-            if (method != DefaultHashMethod)
+            if (string.Equals(hash.Id, "PBKDF2", StringComparison.Ordinal))
             {
-                throw new CryptographicException($"Cannot currently use PBKDF2 with requested hash method: {method}");
+                return hash.Hash.SequenceEqual(
+                    Rfc2898DeriveBytes.Pbkdf2(
+                        password,
+                        hash.Salt,
+                        int.Parse(hash.Parameters["iterations"], CultureInfo.InvariantCulture),
+                        HashAlgorithmName.SHA1,
+                        32));
             }
 
-            using var r = new Rfc2898DeriveBytes(bytes, salt, iterations);
-            return r.GetBytes(32);
-        }
-
-        /// <inheritdoc />
-        public byte[] ComputeHash(string hashMethod, byte[] bytes, byte[] salt)
-        {
-            if (hashMethod == DefaultHashMethod)
+            if (string.Equals(hash.Id, "PBKDF2-SHA512", StringComparison.Ordinal))
             {
-                return PBKDF2(hashMethod, bytes, salt, DefaultIterations);
+                return hash.Hash.SequenceEqual(
+                    Rfc2898DeriveBytes.Pbkdf2(
+                        password,
+                        hash.Salt,
+                        int.Parse(hash.Parameters["iterations"], CultureInfo.InvariantCulture),
+                        HashAlgorithmName.SHA512,
+                        DefaultOutputLength));
             }
 
-            if (!_supportedHashMethods.Contains(hashMethod))
+            if (!_supportedHashMethods.Contains(hash.Id))
             {
-                throw new CryptographicException($"Requested hash method is not supported: {hashMethod}");
+                throw new CryptographicException($"Requested hash method is not supported: {hash.Id}");
             }
 
-            using var h = HashAlgorithm.Create(hashMethod) ?? throw new ResourceNotFoundException($"Unknown hash method: {hashMethod}.");
-            if (salt.Length == 0)
+            using var h = HashAlgorithm.Create(hash.Id) ?? throw new ResourceNotFoundException($"Unknown hash method: {hash.Id}.");
+            var bytes = Encoding.UTF8.GetBytes(password.ToArray());
+            if (hash.Salt.Length == 0)
             {
-                return h.ComputeHash(bytes);
+                return hash.Hash.SequenceEqual(h.ComputeHash(bytes));
             }
 
-            byte[] salted = new byte[bytes.Length + salt.Length];
+            byte[] salted = new byte[bytes.Length + hash.Salt.Length];
             Array.Copy(bytes, salted, bytes.Length);
-            Array.Copy(salt, 0, salted, bytes.Length, salt.Length);
-            return h.ComputeHash(salted);
+            hash.Salt.CopyTo(salted.AsSpan(bytes.Length));
+            return hash.Hash.SequenceEqual(h.ComputeHash(salted));
         }
 
-        /// <inheritdoc />
-        public byte[] ComputeHashWithDefaultMethod(byte[] bytes, byte[] salt)
-            => PBKDF2(DefaultHashMethod, bytes, salt, DefaultIterations);
-
         /// <inheritdoc />
         public byte[] GenerateSalt()
             => GenerateSalt(DefaultSaltLength);
@@ -102,35 +105,10 @@ namespace Emby.Server.Implementations.Cryptography
         /// <inheritdoc />
         public byte[] GenerateSalt(int length)
         {
-            byte[] salt = new byte[length];
-            _randomNumberGenerator.GetBytes(salt);
+            var salt = new byte[length];
+            using var rng = RandomNumberGenerator.Create();
+            rng.GetNonZeroBytes(salt);
             return salt;
         }
-
-        /// <inheritdoc />
-        public void Dispose()
-        {
-            Dispose(true);
-            GC.SuppressFinalize(this);
-        }
-
-        /// <summary>
-        /// Releases unmanaged and - optionally - managed resources.
-        /// </summary>
-        /// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
-        protected virtual void Dispose(bool disposing)
-        {
-            if (_disposed)
-            {
-                return;
-            }
-
-            if (disposing)
-            {
-                _randomNumberGenerator.Dispose();
-            }
-
-            _disposed = true;
-        }
     }
 }

Emby.Server.Implementations/Data/BaseSqliteRepository.cs

@@ -4,8 +4,8 @@
 
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Threading;
+using Jellyfin.Extensions;
 using Microsoft.Extensions.Logging;
 using SQLitePCL.pretty;
 
@@ -98,7 +98,7 @@ namespace Emby.Server.Implementations.Data
         /// <value>The write connection.</value>
         protected SQLiteDatabaseConnection WriteConnection { get; set; }
 
-        protected ManagedConnection GetConnection(bool _ = false)
+        protected ManagedConnection GetConnection(bool readOnly = false)
         {
             WriteLock.Wait();
             if (WriteConnection != null)
@@ -160,21 +160,22 @@ namespace Emby.Server.Implementations.Data
         protected bool TableExists(ManagedConnection connection, string name)
         {
             return connection.RunInTransaction(
-            db =>
-            {
-                using (var statement = PrepareStatement(db, "select DISTINCT tbl_name from sqlite_master"))
+                db =>
                 {
-                    foreach (var row in statement.ExecuteQuery())
+                    using (var statement = PrepareStatement(db, "select DISTINCT tbl_name from sqlite_master"))
                     {
-                        if (string.Equals(name, row.GetString(0), StringComparison.OrdinalIgnoreCase))
+                        foreach (var row in statement.ExecuteQuery())
                         {
-                            return true;
+                            if (string.Equals(name, row.GetString(0), StringComparison.OrdinalIgnoreCase))
+                            {
+                                return true;
+                            }
                         }
                     }
-                }
 
-                return false;
-            }, ReadTransactionMode);
+                    return false;
+                },
+                ReadTransactionMode);
         }
 
         protected List<string> GetColumnNames(IDatabaseConnection connection, string table)
@@ -194,7 +195,7 @@ namespace Emby.Server.Implementations.Data
 
         protected void AddColumn(IDatabaseConnection connection, string table, string columnName, string type, List<string> existingColumnNames)
         {
-            if (existingColumnNames.Contains(columnName, StringComparer.OrdinalIgnoreCase))
+            if (existingColumnNames.Contains(columnName, StringComparison.OrdinalIgnoreCase))
             {
                 return;
             }
@@ -249,55 +250,4 @@ namespace Emby.Server.Implementations.Data
             _disposed = true;
         }
     }
-
-    /// <summary>
-    /// The disk synchronization mode, controls how aggressively SQLite will write data
-    /// all the way out to physical storage.
-    /// </summary>
-    public enum SynchronousMode
-    {
-        /// <summary>
-        /// SQLite continues without syncing as soon as it has handed data off to the operating system.
-        /// </summary>
-        Off = 0,
-
-        /// <summary>
-        /// SQLite database engine will still sync at the most critical moments.
-        /// </summary>
-        Normal = 1,
-
-        /// <summary>
-        /// SQLite database engine will use the xSync method of the VFS
-        /// to ensure that all content is safely written to the disk surface prior to continuing.
-        /// </summary>
-        Full = 2,
-
-        /// <summary>
-        /// EXTRA synchronous is like FULL with the addition that the directory containing a rollback journal
-        /// is synced after that journal is unlinked to commit a transaction in DELETE mode.
-        /// </summary>
-        Extra = 3
-    }
-
-    /// <summary>
-    /// Storage mode used by temporary database files.
-    /// </summary>
-    public enum TempStoreMode
-    {
-        /// <summary>
-        /// The compile-time C preprocessor macro SQLITE_TEMP_STORE
-        /// is used to determine where temporary tables and indices are stored.
-        /// </summary>
-        Default = 0,
-
-        /// <summary>
-        /// Temporary tables and indices are stored in a file.
-        /// </summary>
-        File = 1,
-
-        /// <summary>
-        /// Temporary tables and indices are kept in as if they were pure in-memory databases memory.
-        /// </summary>
-        Memory = 2
-    }
 }

Emby.Server.Implementations/Data/ManagedConnection.cs

@@ -7,10 +7,12 @@ using SQLitePCL.pretty;
 
 namespace Emby.Server.Implementations.Data
 {
-    public class ManagedConnection : IDisposable
+    public sealed class ManagedConnection : IDisposable
     {
-        private SQLiteDatabaseConnection? _db;
         private readonly SemaphoreSlim _writeLock;
+
+        private SQLiteDatabaseConnection? _db;
+
         private bool _disposed = false;
 
         public ManagedConnection(SQLiteDatabaseConnection db, SemaphoreSlim writeLock)

Emby.Server.Implementations/Data/SqliteUserDataRepository.cs

@@ -32,6 +32,9 @@ namespace Emby.Server.Implementations.Data
         /// <summary>
         /// Opens the connection to the database.
         /// </summary>
+        /// <param name="userManager">The user manager.</param>
+        /// <param name="dbLock">The lock to use for database IO.</param>
+        /// <param name="dbConnection">The connection to use for database IO.</param>
         public void Initialize(IUserManager userManager, SemaphoreSlim dbLock, SQLiteDatabaseConnection dbConnection)
         {
             WriteLock.Dispose();
@@ -47,41 +50,42 @@ namespace Emby.Server.Implementations.Data
                 var users = userDatasTableExists ? null : userManager.Users;
 
                 connection.RunInTransaction(
-                db =>
-                {
-                    db.ExecuteAll(string.Join(';', new[] {
-
-                        "create table if not exists UserDatas (key nvarchar not null, userId INT not null, rating float null, played bit not null, playCount int not null, isFavorite bit not null, playbackPositionTicks bigint not null, lastPlayedDate datetime null, AudioStreamIndex INT, SubtitleStreamIndex INT)",
-
-                        "drop index if exists idx_userdata",
-                        "drop index if exists idx_userdata1",
-                        "drop index if exists idx_userdata2",
-                        "drop index if exists userdataindex1",
-                        "drop index if exists userdataindex",
-                        "drop index if exists userdataindex3",
-                        "drop index if exists userdataindex4",
-                        "create unique index if not exists UserDatasIndex1 on UserDatas (key, userId)",
-                        "create index if not exists UserDatasIndex2 on UserDatas (key, userId, played)",
-                        "create index if not exists UserDatasIndex3 on UserDatas (key, userId, playbackPositionTicks)",
-                        "create index if not exists UserDatasIndex4 on UserDatas (key, userId, isFavorite)"
-                    }));
-
-                    if (userDataTableExists)
+                    db =>
                     {
-                        var existingColumnNames = GetColumnNames(db, "userdata");
+                        db.ExecuteAll(string.Join(';', new[]
+                        {
+                            "create table if not exists UserDatas (key nvarchar not null, userId INT not null, rating float null, played bit not null, playCount int not null, isFavorite bit not null, playbackPositionTicks bigint not null, lastPlayedDate datetime null, AudioStreamIndex INT, SubtitleStreamIndex INT)",
+
+                            "drop index if exists idx_userdata",
+                            "drop index if exists idx_userdata1",
+                            "drop index if exists idx_userdata2",
+                            "drop index if exists userdataindex1",
+                            "drop index if exists userdataindex",
+                            "drop index if exists userdataindex3",
+                            "drop index if exists userdataindex4",
+                            "create unique index if not exists UserDatasIndex1 on UserDatas (key, userId)",
+                            "create index if not exists UserDatasIndex2 on UserDatas (key, userId, played)",
+                            "create index if not exists UserDatasIndex3 on UserDatas (key, userId, playbackPositionTicks)",
+                            "create index if not exists UserDatasIndex4 on UserDatas (key, userId, isFavorite)"
+                        }));
+
+                        if (userDataTableExists)
+                        {
+                            var existingColumnNames = GetColumnNames(db, "userdata");
 
-                        AddColumn(db, "userdata", "InternalUserId", "int", existingColumnNames);
-                        AddColumn(db, "userdata", "AudioStreamIndex", "int", existingColumnNames);
-                        AddColumn(db, "userdata", "SubtitleStreamIndex", "int", existingColumnNames);
+                            AddColumn(db, "userdata", "InternalUserId", "int", existingColumnNames);
+                            AddColumn(db, "userdata", "AudioStreamIndex", "int", existingColumnNames);
+                            AddColumn(db, "userdata", "SubtitleStreamIndex", "int", existingColumnNames);
 
-                        if (!userDatasTableExists)
-                        {
-                            ImportUserIds(db, users);
+                            if (!userDatasTableExists)
+                            {
+                                ImportUserIds(db, users);
 
-                            db.ExecuteAll("INSERT INTO UserDatas (key, userId, rating, played, playCount, isFavorite, playbackPositionTicks, lastPlayedDate, AudioStreamIndex, SubtitleStreamIndex) SELECT key, InternalUserId, rating, played, playCount, isFavorite, playbackPositionTicks, lastPlayedDate, AudioStreamIndex, SubtitleStreamIndex from userdata where InternalUserId not null");
+                                db.ExecuteAll("INSERT INTO UserDatas (key, userId, rating, played, playCount, isFavorite, playbackPositionTicks, lastPlayedDate, AudioStreamIndex, SubtitleStreamIndex) SELECT key, InternalUserId, rating, played, playCount, isFavorite, playbackPositionTicks, lastPlayedDate, AudioStreamIndex, SubtitleStreamIndex from userdata where InternalUserId not null");
+                            }
                         }
-                    }
-                }, TransactionMode);
+                    },
+                    TransactionMode);
             }
         }
 
@@ -180,10 +184,11 @@ namespace Emby.Server.Implementations.Data
             using (var connection = GetConnection())
             {
                 connection.RunInTransaction(
-                db =>
-                {
-                    SaveUserData(db, internalUserId, key, userData);
-                }, TransactionMode);
+                    db =>
+                    {
+                        SaveUserData(db, internalUserId, key, userData);
+                    },
+                    TransactionMode);
             }
         }
 
@@ -249,13 +254,14 @@ namespace Emby.Server.Implementations.Data
             using (var connection = GetConnection())
             {
                 connection.RunInTransaction(
-                db =>
-                {
-                    foreach (var userItemData in userDataList)
+                    db =>
                     {
-                        SaveUserData(db, internalUserId, userItemData.Key, userItemData);
-                    }
-                }, TransactionMode);
+                        foreach (var userItemData in userDataList)
+                        {
+                            SaveUserData(db, internalUserId, userItemData.Key, userItemData);
+                        }
+                    },
+                    TransactionMode);
             }
         }
 

Emby.Server.Implementations/Data/SynchronouseMode.cs

@@ -0,0 +1,30 @@
+namespace Emby.Server.Implementations.Data;
+
+/// <summary>
+/// The disk synchronization mode, controls how aggressively SQLite will write data
+/// all the way out to physical storage.
+/// </summary>
+public enum SynchronousMode
+{
+    /// <summary>
+    /// SQLite continues without syncing as soon as it has handed data off to the operating system.
+    /// </summary>
+    Off = 0,
+
+    /// <summary>
+    /// SQLite database engine will still sync at the most critical moments.
+    /// </summary>
+    Normal = 1,
+
+    /// <summary>
+    /// SQLite database engine will use the xSync method of the VFS
+    /// to ensure that all content is safely written to the disk surface prior to continuing.
+    /// </summary>
+    Full = 2,
+
+    /// <summary>
+    /// EXTRA synchronous is like FULL with the addition that the directory containing a rollback journal
+    /// is synced after that journal is unlinked to commit a transaction in DELETE mode.
+    /// </summary>
+    Extra = 3
+}

Emby.Server.Implementations/Data/TempStoreMode.cs

@@ -0,0 +1,23 @@
+namespace Emby.Server.Implementations.Data;
+
+/// <summary>
+/// Storage mode used by temporary database files.
+/// </summary>
+public enum TempStoreMode
+{
+    /// <summary>
+    /// The compile-time C preprocessor macro SQLITE_TEMP_STORE
+    /// is used to determine where temporary tables and indices are stored.
+    /// </summary>
+    Default = 0,
+
+    /// <summary>
+    /// Temporary tables and indices are stored in a file.
+    /// </summary>
+    File = 1,
+
+    /// <summary>
+    /// Temporary tables and indices are kept in as if they were pure in-memory databases memory.
+    /// </summary>
+    Memory = 2
+}

Emby.Server.Implementations/Devices/DeviceId.cs

@@ -15,9 +15,18 @@ namespace Emby.Server.Implementations.Devices
     {
         private readonly IApplicationPaths _appPaths;
         private readonly ILogger<DeviceId> _logger;
-
         private readonly object _syncLock = new object();
 
+        private string _id;
+
+        public DeviceId(IApplicationPaths appPaths, ILoggerFactory loggerFactory)
+        {
+            _appPaths = appPaths;
+            _logger = loggerFactory.CreateLogger<DeviceId>();
+        }
+
+        public string Value => _id ?? (_id = GetDeviceId());
+
         private string CachePath => Path.Combine(_appPaths.DataPath, "device.txt");
 
         private string GetCachedId()
@@ -28,7 +37,7 @@ namespace Emby.Server.Implementations.Devices
                 {
                     var value = File.ReadAllText(CachePath, Encoding.UTF8);
 
-                    if (Guid.TryParse(value, out var guid))
+                    if (Guid.TryParse(value, out _))
                     {
                         return value;
                     }
@@ -86,15 +95,5 @@ namespace Emby.Server.Implementations.Devices
 
             return id;
         }
-
-        private string _id;
-
-        public DeviceId(IApplicationPaths appPaths, ILoggerFactory loggerFactory)
-        {
-            _appPaths = appPaths;
-            _logger = loggerFactory.CreateLogger<DeviceId>();
-        }
-
-        public string Value => _id ?? (_id = GetDeviceId());
     }
 }

Emby.Server.Implementations/Dto/DtoService.cs

@@ -7,9 +7,9 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using System.Linq;
-using System.Threading.Tasks;
 using Jellyfin.Data.Entities;
 using Jellyfin.Data.Enums;
+using Jellyfin.Extensions;
 using MediaBrowser.Common;
 using MediaBrowser.Controller.Channels;
 using MediaBrowser.Controller.Drawing;
@@ -109,7 +109,7 @@ namespace Emby.Server.Implementations.Dto
                             }
                         });
 
-                        SetItemByNameInfo(item, dto, libraryItems, user);
+                        SetItemByNameInfo(item, dto, libraryItems);
                     }
                 }
 
@@ -134,14 +134,11 @@ namespace Emby.Server.Implementations.Dto
             var dto = GetBaseItemDtoInternal(item, options, user, owner);
             if (item is LiveTvChannel tvChannel)
             {
-                var list = new List<(BaseItemDto, LiveTvChannel)>(1) { (dto, tvChannel) };
-                LivetvManager.AddChannelInfo(list, options, user);
+                LivetvManager.AddChannelInfo(new[] { (dto, tvChannel) }, options, user);
             }
             else if (item is LiveTvProgram)
             {
-                var list = new List<(BaseItem, BaseItemDto)>(1) { (item, dto) };
-                var task = LivetvManager.AddInfoToProgramDto(list, options.Fields, user);
-                Task.WaitAll(task);
+                LivetvManager.AddInfoToProgramDto(new[] { (item, dto) }, options.Fields, user).GetAwaiter().GetResult();
             }
 
             if (item is IItemByName itemByName
@@ -156,8 +153,7 @@ namespace Emby.Server.Implementations.Dto
                         new DtoOptions(false)
                         {
                             EnableImages = false
-                        }),
-                    user);
+                        }));
             }
 
             return dto;
@@ -297,7 +293,7 @@ namespace Emby.Server.Implementations.Dto
                             path = path.TrimStart('.');
                         }
 
-                        if (!string.IsNullOrEmpty(path) && containers.Contains(path, StringComparer.OrdinalIgnoreCase))
+                        if (!string.IsNullOrEmpty(path) && containers.Contains(path, StringComparison.OrdinalIgnoreCase))
                         {
                             fileExtensionContainer = path;
                         }
@@ -314,13 +310,13 @@ namespace Emby.Server.Implementations.Dto
 
             if (taggedItems != null && options.ContainsField(ItemFields.ItemCounts))
             {
-                SetItemByNameInfo(item, dto, taggedItems, user);
+                SetItemByNameInfo(item, dto, taggedItems);
             }
 
             return dto;
         }
 
-        private static void SetItemByNameInfo(BaseItem item, BaseItemDto dto, IList<BaseItem> taggedItems, User user = null)
+        private static void SetItemByNameInfo(BaseItem item, BaseItemDto dto, IList<BaseItem> taggedItems)
         {
             if (item is MusicArtist)
             {
@@ -373,6 +369,12 @@ namespace Emby.Server.Implementations.Dto
                     if (item is MusicAlbum || item is Season || item is Playlist)
                     {
                         dto.ChildCount = dto.RecursiveItemCount;
+                        var folderChildCount = folder.LinkedChildren.Length;
+                        // The default is an empty array, so we can't reliably use the count when it's empty
+                        if (folderChildCount > 0)
+                        {
+                            dto.ChildCount ??= folderChildCount;
+                        }
                     }
 
                     if (options.ContainsField(ItemFields.ChildCount))
@@ -420,7 +422,7 @@ namespace Emby.Server.Implementations.Dto
             // Just return something so that apps that are expecting a value won't think the folders are empty
             if (folder is ICollectionFolder || folder is UserView)
             {
-                return new Random().Next(1, 10);
+                return Random.Shared.Next(1, 10);
             }
 
             return folder.GetChildCount(user);
@@ -467,7 +469,7 @@ namespace Emby.Server.Implementations.Dto
             {
                 var parentAlbumIds = _libraryManager.GetItemIds(new InternalItemsQuery
                 {
-                    IncludeItemTypes = new[] { nameof(MusicAlbum) },
+                    IncludeItemTypes = new[] { BaseItemKind.MusicAlbum },
                     Name = item.Album,
                     Limit = 1
                 });
@@ -497,7 +499,7 @@ namespace Emby.Server.Implementations.Dto
             }
             catch (Exception ex)
             {
-                _logger.LogError(ex, "Error getting {imageType} image info for {path}", image.Type, image.Path);
+                _logger.LogError(ex, "Error getting {ImageType} image info for {Path}", image.Type, image.Path);
                 return null;
             }
         }
@@ -755,15 +757,6 @@ namespace Emby.Server.Implementations.Dto
                 dto.BackdropImageTags = GetTagsAndFillBlurhashes(dto, item, ImageType.Backdrop, backdropLimit);
             }
 
-            if (options.ContainsField(ItemFields.ScreenshotImageTags))
-            {
-                var screenshotLimit = options.GetImageLimit(ImageType.Screenshot);
-                if (screenshotLimit > 0)
-                {
-                    dto.ScreenshotImageTags = GetTagsAndFillBlurhashes(dto, item, ImageType.Screenshot, screenshotLimit);
-                }
-            }
-
             if (options.ContainsField(ItemFields.Genres))
             {
                 dto.Genres = item.Genres;
@@ -1410,44 +1403,27 @@ namespace Emby.Server.Implementations.Dto
                 return null;
             }
 
-            ImageDimensions size;
-
-            var defaultAspectRatio = item.GetDefaultPrimaryImageAspectRatio();
-
-            if (defaultAspectRatio > 0)
-            {
-                return defaultAspectRatio;
-            }
-
             if (!imageInfo.IsLocalFile)
             {
-                return null;
+                return item.GetDefaultPrimaryImageAspectRatio();
             }
 
             try
             {
-                size = _imageProcessor.GetImageDimensions(item, imageInfo);
-
-                if (size.Width <= 0 || size.Height <= 0)
+                var size = _imageProcessor.GetImageDimensions(item, imageInfo);
+                var width = size.Width;
+                var height = size.Height;
+                if (width > 0 && height > 0)
                 {
-                    return null;
+                    return (double)width / height;
                 }
             }
             catch (Exception ex)
             {
-                _logger.LogError(ex, "Failed to determine primary image aspect ratio for {0}", imageInfo.Path);
-                return null;
-            }
-
-            var width = size.Width;
-            var height = size.Height;
-
-            if (width <= 0 || height <= 0)
-            {
-                return null;
+                _logger.LogError(ex, "Failed to determine primary image aspect ratio for {ImagePath}", imageInfo.Path);
             }
 
-            return (double)width / height;
+            return item.GetDefaultPrimaryImageAspectRatio();
         }
     }
 }

Emby.Server.Implementations/Emby.Server.Implementations.csproj

@@ -25,16 +25,16 @@
   <ItemGroup>
     <PackageReference Include="DiscUtils.Udf" Version="0.16.13" />
     <PackageReference Include="Jellyfin.XmlTv" Version="10.6.2" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="5.0.2" />
-    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="5.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="5.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="5.0.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="5.0.10" />
-    <PackageReference Include="Mono.Nat" Version="3.0.1" />
-    <PackageReference Include="prometheus-net.DotNetRuntime" Version="4.2.1" />
-    <PackageReference Include="sharpcompress" Version="0.29.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="6.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="6.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="6.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="6.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="6.0.1" />
+    <PackageReference Include="Mono.Nat" Version="3.0.2" />
+    <PackageReference Include="prometheus-net.DotNetRuntime" Version="4.2.2" />
+    <PackageReference Include="sharpcompress" Version="0.30.1" />
     <PackageReference Include="SQLitePCL.pretty.netstandard" Version="3.1.0" />
-    <PackageReference Include="DotNet.Glob" Version="3.1.2" />
+    <PackageReference Include="DotNet.Glob" Version="3.1.3" />
   </ItemGroup>
 
   <ItemGroup>
@@ -47,17 +47,16 @@
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <!-- https://github.com/microsoft/ApplicationInsights-dotnet/issues/2047 -->
     <NoWarn>AD0001</NoWarn>
-    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
   </PropertyGroup>
 
-  <PropertyGroup Condition=" '$(Configuration)' == 'Release'">
-    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
   </PropertyGroup>
 
   <!-- Code Analyzers-->
   <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
     <PackageReference Include="SerilogAnalyzer" Version="0.15.0" PrivateAssets="All" />
-    <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="All" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.376" PrivateAssets="All" />
     <PackageReference Include="SmartAnalyzers.MultithreadingAnalyzer" Version="1.1.31" PrivateAssets="All" />
   </ItemGroup>
 

Emby.Server.Implementations/EntryPoints/ExternalPortForwarding.cs

@@ -13,7 +13,6 @@ using Jellyfin.Networking.Configuration;
 using MediaBrowser.Controller;
 using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Plugins;
-using MediaBrowser.Model.Dlna;
 using Microsoft.Extensions.Logging;
 using Mono.Nat;
 
@@ -27,7 +26,6 @@ namespace Emby.Server.Implementations.EntryPoints
         private readonly IServerApplicationHost _appHost;
         private readonly ILogger<ExternalPortForwarding> _logger;
         private readonly IServerConfigurationManager _config;
-        private readonly IDeviceDiscovery _deviceDiscovery;
 
         private readonly ConcurrentDictionary<IPEndPoint, byte> _createdRules = new ConcurrentDictionary<IPEndPoint, byte>();
 
@@ -42,17 +40,14 @@ namespace Emby.Server.Implementations.EntryPoints
         /// <param name="logger">The logger.</param>
         /// <param name="appHost">The application host.</param>
         /// <param name="config">The configuration manager.</param>
-        /// <param name="deviceDiscovery">The device discovery.</param>
         public ExternalPortForwarding(
             ILogger<ExternalPortForwarding> logger,
             IServerApplicationHost appHost,
-            IServerConfigurationManager config,
-            IDeviceDiscovery deviceDiscovery)
+            IServerConfigurationManager config)
         {
             _logger = logger;
             _appHost = appHost;
             _config = config;
-            _deviceDiscovery = deviceDiscovery;
         }
 
         private string GetConfigIdentifier()

Emby.Server.Implementations/EntryPoints/LibraryChangedNotifier.cs

@@ -101,7 +101,7 @@ namespace Emby.Server.Implementations.EntryPoints
                 }
             }
 
-            _lastProgressMessageTimes.AddOrUpdate(item.Id, key => DateTime.UtcNow, (key, existing) => DateTime.UtcNow);
+            _lastProgressMessageTimes.AddOrUpdate(item.Id, _ => DateTime.UtcNow, (_, _) => DateTime.UtcNow);
 
             var dict = new Dictionary<string, string>();
             dict["ItemId"] = item.Id.ToString("N", CultureInfo.InvariantCulture);
@@ -144,7 +144,7 @@ namespace Emby.Server.Implementations.EntryPoints
         {
             OnProviderRefreshProgress(sender, new GenericEventArgs<Tuple<BaseItem, double>>(new Tuple<BaseItem, double>(e.Argument, 100)));
 
-            _lastProgressMessageTimes.TryRemove(e.Argument.Id, out DateTime removed);
+            _lastProgressMessageTimes.TryRemove(e.Argument.Id, out _);
         }
 
         private static bool EnableRefreshMessage(BaseItem item)
@@ -423,7 +423,6 @@ namespace Emby.Server.Implementations.EntryPoints
                     continue;
                 }
 
-                var collectionFolders = _libraryManager.GetCollectionFolders(item, allUserRootChildren);
                 foreach (var folder in allUserRootChildren)
                 {
                     list.Add(folder.Id.ToString("N", CultureInfo.InvariantCulture));
@@ -436,7 +435,7 @@ namespace Emby.Server.Implementations.EntryPoints
         /// <summary>
         /// Translates the physical item to user library.
         /// </summary>
-        /// <typeparam name="T"></typeparam>
+        /// <typeparam name="T">The type of item.</typeparam>
         /// <param name="item">The item.</param>
         /// <param name="user">The user.</param>
         /// <param name="includeIfNotFound">if set to <c>true</c> [include if not found].</param>
@@ -465,6 +464,7 @@ namespace Emby.Server.Implementations.EntryPoints
         public void Dispose()
         {
             Dispose(true);
+            GC.SuppressFinalize(this);
         }
 
         /// <summary>

Emby.Server.Implementations/EntryPoints/UserDataChangeNotifier.cs

@@ -95,7 +95,7 @@ namespace Emby.Server.Implementations.EntryPoints
                 var changes = _changedItems.ToList();
                 _changedItems.Clear();
 
-                var task = SendNotifications(changes, CancellationToken.None);
+                SendNotifications(changes, CancellationToken.None).GetAwaiter().GetResult();
 
                 if (_updateTimer != null)
                 {

Emby.Server.Implementations/HttpServer/Security/AuthService.cs

@@ -2,7 +2,6 @@
 
 using System.Threading.Tasks;
 using Jellyfin.Data.Enums;
-using MediaBrowser.Controller.Authentication;
 using MediaBrowser.Controller.Net;
 using Microsoft.AspNetCore.Http;
 
@@ -24,7 +23,7 @@ namespace Emby.Server.Implementations.HttpServer.Security
 
             if (!auth.HasToken)
             {
-                throw new AuthenticationException("Request does not contain a token.");
+                return auth;
             }
 
             if (!auth.IsAuthenticated)

Emby.Server.Implementations/HttpServer/Security/SessionContext.cs

@@ -47,7 +47,7 @@ namespace Emby.Server.Implementations.HttpServer.Security
         {
             var session = await GetSession(requestContext).ConfigureAwait(false);
 
-            return session == null || session.UserId.Equals(Guid.Empty) ? null : _userManager.GetUserById(session.UserId);
+            return session.UserId.Equals(Guid.Empty) ? null : _userManager.GetUserById(session.UserId);
         }
 
         public Task<User?> GetUser(object requestContext)

Emby.Server.Implementations/HttpServer/WebSocketConnection.cs

@@ -42,17 +42,14 @@ namespace Emby.Server.Implementations.HttpServer
         /// <param name="logger">The logger.</param>
         /// <param name="socket">The socket.</param>
         /// <param name="remoteEndPoint">The remote end point.</param>
-        /// <param name="query">The query.</param>
         public WebSocketConnection(
             ILogger<WebSocketConnection> logger,
             WebSocket socket,
-            IPAddress? remoteEndPoint,
-            IQueryCollection query)
+            IPAddress? remoteEndPoint)
         {
             _logger = logger;
             _socket = socket;
             RemoteEndPoint = remoteEndPoint;
-            QueryString = query;
 
             _jsonOptions = JsonDefaults.Options;
             LastActivityDate = DateTime.Now;
@@ -81,12 +78,6 @@ namespace Emby.Server.Implementations.HttpServer
         /// <inheritdoc />
         public DateTime LastKeepAliveDate { get; set; }
 
-        /// <summary>
-        /// Gets the query string.
-        /// </summary>
-        /// <value>The query string.</value>
-        public IQueryCollection QueryString { get; }
-
         /// <summary>
         /// Gets the state.
         /// </summary>
@@ -96,7 +87,7 @@ namespace Emby.Server.Implementations.HttpServer
         /// <summary>
         /// Sends a message asynchronously.
         /// </summary>
-        /// <typeparam name="T"></typeparam>
+        /// <typeparam name="T">The type of the message.</typeparam>
         /// <param name="message">The message.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Task.</returns>
@@ -150,8 +141,8 @@ namespace Emby.Server.Implementations.HttpServer
                 {
                     await ProcessInternal(pipe.Reader).ConfigureAwait(false);
                 }
-            } while (
-                (_socket.State == WebSocketState.Open || _socket.State == WebSocketState.Connecting)
+            }
+            while ((_socket.State == WebSocketState.Open || _socket.State == WebSocketState.Connecting)
                 && receiveresult.MessageType != WebSocketMessageType.Close);
 
             Closed?.Invoke(this, EventArgs.Empty);
@@ -180,7 +171,7 @@ namespace Emby.Server.Implementations.HttpServer
             }
 
             WebSocketMessage<object>? stub;
-            long bytesConsumed = 0;
+            long bytesConsumed;
             try
             {
                 stub = DeserializeWebSocketMessage(buffer, out bytesConsumed);
@@ -236,7 +227,8 @@ namespace Emby.Server.Implementations.HttpServer
                 {
                     MessageId = Guid.NewGuid(),
                     MessageType = SessionMessageType.KeepAlive
-                }, CancellationToken.None);
+                },
+                CancellationToken.None);
         }
 
         /// <inheritdoc />

Emby.Server.Implementations/HttpServer/WebSocketManager.cs

@@ -7,6 +7,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Net.WebSockets;
 using System.Threading.Tasks;
+using MediaBrowser.Common.Extensions;
 using MediaBrowser.Controller.Net;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Logging;
@@ -35,7 +36,12 @@ namespace Emby.Server.Implementations.HttpServer
         /// <inheritdoc />
         public async Task WebSocketRequestHandler(HttpContext context)
         {
-            _ = await _authService.Authenticate(context.Request).ConfigureAwait(false);
+            var authorizationInfo = await _authService.Authenticate(context.Request).ConfigureAwait(false);
+            if (!authorizationInfo.IsAuthenticated)
+            {
+                throw new SecurityException("Token is required");
+            }
+
             try
             {
                 _logger.LogInformation("WS {IP} request", context.Connection.RemoteIpAddress);
@@ -45,8 +51,7 @@ namespace Emby.Server.Implementations.HttpServer
                 using var connection = new WebSocketConnection(
                     _loggerFactory.CreateLogger<WebSocketConnection>(),
                     webSocket,
-                    context.Connection.RemoteIpAddress,
-                    context.Request.Query)
+                    context.GetNormalizedRemoteIp())
                 {
                     OnReceive = ProcessWebSocketMessageReceived
                 };
@@ -54,7 +59,7 @@ namespace Emby.Server.Implementations.HttpServer
                 var tasks = new Task[_webSocketListeners.Length];
                 for (var i = 0; i < _webSocketListeners.Length; ++i)
                 {
-                    tasks[i] = _webSocketListeners[i].ProcessWebSocketConnectedAsync(connection);
+                    tasks[i] = _webSocketListeners[i].ProcessWebSocketConnectedAsync(connection, context);
                 }
 
                 await Task.WhenAll(tasks).ConfigureAwait(false);

Emby.Server.Implementations/IO/FileRefresher.cs

@@ -1,5 +1,3 @@
-#nullable disable
-
 #pragma warning disable CS1591
 
 using System;
@@ -14,7 +12,7 @@ using Microsoft.Extensions.Logging;
 
 namespace Emby.Server.Implementations.IO
 {
-    public class FileRefresher : IDisposable
+    public sealed class FileRefresher : IDisposable
     {
         private readonly ILogger _logger;
         private readonly ILibraryManager _libraryManager;
@@ -22,7 +20,7 @@ namespace Emby.Server.Implementations.IO
 
         private readonly List<string> _affectedPaths = new List<string>();
         private readonly object _timerLock = new object();
-        private Timer _timer;
+        private Timer? _timer;
         private bool _disposed;
 
         public FileRefresher(string path, IServerConfigurationManager configurationManager, ILibraryManager libraryManager, ILogger logger)
@@ -36,7 +34,7 @@ namespace Emby.Server.Implementations.IO
             AddPath(path);
         }
 
-        public event EventHandler<EventArgs> Completed;
+        public event EventHandler<EventArgs>? Completed;
 
         public string Path { get; private set; }
 
@@ -111,7 +109,7 @@ namespace Emby.Server.Implementations.IO
             RestartTimer();
         }
 
-        private void OnTimerCallback(object state)
+        private void OnTimerCallback(object? state)
         {
             List<string> paths;
 
@@ -127,7 +125,7 @@ namespace Emby.Server.Implementations.IO
 
             try
             {
-                ProcessPathChanges(paths.ToList());
+                ProcessPathChanges(paths);
             }
             catch (Exception ex)
             {
@@ -137,12 +135,12 @@ namespace Emby.Server.Implementations.IO
 
         private void ProcessPathChanges(List<string> paths)
         {
-            var itemsToRefresh = paths
+            IEnumerable<BaseItem> itemsToRefresh = paths
                 .Distinct(StringComparer.OrdinalIgnoreCase)
                 .Select(GetAffectedBaseItem)
                 .Where(item => item != null)
-                .GroupBy(x => x.Id)
-                .Select(x => x.First());
+                .GroupBy(x => x!.Id) // Removed null values in the previous .Where()
+                .Select(x => x.First())!;
 
             foreach (var item in itemsToRefresh)
             {
@@ -176,15 +174,15 @@ namespace Emby.Server.Implementations.IO
         /// </summary>
         /// <param name="path">The path.</param>
         /// <returns>BaseItem.</returns>
-        private BaseItem GetAffectedBaseItem(string path)
+        private BaseItem? GetAffectedBaseItem(string path)
         {
-            BaseItem item = null;
+            BaseItem? item = null;
 
             while (item == null && !string.IsNullOrEmpty(path))
             {
                 item = _libraryManager.FindByPath(path, null);
 
-                path = System.IO.Path.GetDirectoryName(path);
+                path = System.IO.Path.GetDirectoryName(path) ?? string.Empty;
             }
 
             if (item != null)
@@ -219,8 +217,13 @@ namespace Emby.Server.Implementations.IO
         /// <inheritdoc />
         public void Dispose()
         {
-            _disposed = true;
+            if (_disposed)
+            {
+                return;
+            }
+
             DisposeTimer();
+            _disposed = true;
             GC.SuppressFinalize(this);
         }
     }

Emby.Server.Implementations/IO/LibraryMonitor.cs

@@ -41,6 +41,25 @@ namespace Emby.Server.Implementations.IO
 
         private bool _disposed = false;
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LibraryMonitor" /> class.
+        /// </summary>
+        /// <param name="logger">The logger.</param>
+        /// <param name="libraryManager">The library manager.</param>
+        /// <param name="configurationManager">The configuration manager.</param>
+        /// <param name="fileSystem">The filesystem.</param>
+        public LibraryMonitor(
+            ILogger<LibraryMonitor> logger,
+            ILibraryManager libraryManager,
+            IServerConfigurationManager configurationManager,
+            IFileSystem fileSystem)
+        {
+            _libraryManager = libraryManager;
+            _logger = logger;
+            _configurationManager = configurationManager;
+            _fileSystem = fileSystem;
+        }
+
         /// <summary>
         /// Add the path to our temporary ignore list.  Use when writing to a path within our listening scope.
         /// </summary>
@@ -80,7 +99,7 @@ namespace Emby.Server.Implementations.IO
             // But if we make this delay too high, we risk missing legitimate changes, such as user adding a new file, or hand-editing metadata
             await Task.Delay(45000).ConfigureAwait(false);
 
-            _tempIgnoredPaths.TryRemove(path, out var val);
+            _tempIgnoredPaths.TryRemove(path, out _);
 
             if (refreshPath)
             {
@@ -95,21 +114,6 @@ namespace Emby.Server.Implementations.IO
             }
         }
 
-        /// <summary>
-        /// Initializes a new instance of the <see cref="LibraryMonitor" /> class.
-        /// </summary>
-        public LibraryMonitor(
-            ILogger<LibraryMonitor> logger,
-            ILibraryManager libraryManager,
-            IServerConfigurationManager configurationManager,
-            IFileSystem fileSystem)
-        {
-            _libraryManager = libraryManager;
-            _logger = logger;
-            _configurationManager = configurationManager;
-            _fileSystem = fileSystem;
-        }
-
         private bool IsLibraryMonitorEnabled(BaseItem item)
         {
             if (item is BasePluginFolder)
@@ -199,7 +203,7 @@ namespace Emby.Server.Implementations.IO
         /// <param name="lst">The LST.</param>
         /// <param name="path">The path.</param>
         /// <returns><c>true</c> if [contains parent folder] [the specified LST]; otherwise, <c>false</c>.</returns>
-        /// <exception cref="ArgumentNullException">path</exception>
+        /// <exception cref="ArgumentNullException"><paramref name="path"/> is <c>null</c>.</exception>
         private static bool ContainsParentFolder(IEnumerable<string> lst, string path)
         {
             if (string.IsNullOrEmpty(path))
@@ -263,7 +267,7 @@ namespace Emby.Server.Implementations.IO
                     if (_fileSystemWatchers.TryAdd(path, newWatcher))
                     {
                         newWatcher.EnableRaisingEvents = true;
-                        _logger.LogInformation("Watching directory " + path);
+                        _logger.LogInformation("Watching directory {Path}", path);
                     }
                     else
                     {
@@ -272,7 +276,7 @@ namespace Emby.Server.Implementations.IO
                 }
                 catch (Exception ex)
                 {
-                    _logger.LogError(ex, "Error watching path: {path}", path);
+                    _logger.LogError(ex, "Error watching path: {Path}", path);
                 }
             });
         }
@@ -445,12 +449,12 @@ namespace Emby.Server.Implementations.IO
                 }
 
                 var newRefresher = new FileRefresher(path, _configurationManager, _libraryManager, _logger);
-                newRefresher.Completed += NewRefresher_Completed;
+                newRefresher.Completed += OnNewRefresherCompleted;
                 _activeRefreshers.Add(newRefresher);
             }
         }
 
-        private void NewRefresher_Completed(object sender, EventArgs e)
+        private void OnNewRefresherCompleted(object sender, EventArgs e)
         {
             var refresher = (FileRefresher)sender;
             DisposeRefresher(refresher);
@@ -477,6 +481,7 @@ namespace Emby.Server.Implementations.IO
         {
             lock (_activeRefreshers)
             {
+                refresher.Completed -= OnNewRefresherCompleted;
                 refresher.Dispose();
                 _activeRefreshers.Remove(refresher);
             }
@@ -488,6 +493,7 @@ namespace Emby.Server.Implementations.IO
             {
                 foreach (var refresher in _activeRefreshers.ToList())
                 {
+                    refresher.Completed -= OnNewRefresherCompleted;
                     refresher.Dispose();
                 }
 

Emby.Server.Implementations/IO/ManagedFileSystem.cs

@@ -1,5 +1,3 @@
-#pragma warning disable CS1591
-
 using System;
 using System.Collections.Generic;
 using System.Globalization;
@@ -17,20 +15,26 @@ namespace Emby.Server.Implementations.IO
     /// </summary>
     public class ManagedFileSystem : IFileSystem
     {
-        protected ILogger<ManagedFileSystem> Logger;
+        private readonly ILogger<ManagedFileSystem> _logger;
 
         private readonly List<IShortcutHandler> _shortcutHandlers = new List<IShortcutHandler>();
         private readonly string _tempPath;
         private static readonly bool _isEnvironmentCaseInsensitive = OperatingSystem.IsWindows();
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ManagedFileSystem"/> class.
+        /// </summary>
+        /// <param name="logger">The <see cref="ILogger"/> instance to use.</param>
+        /// <param name="applicationPaths">The <see cref="IApplicationPaths"/> instance to use.</param>
         public ManagedFileSystem(
             ILogger<ManagedFileSystem> logger,
             IApplicationPaths applicationPaths)
         {
-            Logger = logger;
+            _logger = logger;
             _tempPath = applicationPaths.TempDirectory;
         }
 
+        /// <inheritdoc />
         public virtual void AddShortcutHandler(IShortcutHandler handler)
         {
             _shortcutHandlers.Add(handler);
@@ -41,7 +45,7 @@ namespace Emby.Server.Implementations.IO
         /// </summary>
         /// <param name="filename">The filename.</param>
         /// <returns><c>true</c> if the specified filename is shortcut; otherwise, <c>false</c>.</returns>
-        /// <exception cref="ArgumentNullException">filename</exception>
+        /// <exception cref="ArgumentNullException"><paramref name="filename"/> is <c>null</c>.</exception>
         public virtual bool IsShortcut(string filename)
         {
             if (string.IsNullOrEmpty(filename))
@@ -58,7 +62,7 @@ namespace Emby.Server.Implementations.IO
         /// </summary>
         /// <param name="filename">The filename.</param>
         /// <returns>System.String.</returns>
-        /// <exception cref="ArgumentNullException">filename</exception>
+        /// <exception cref="ArgumentNullException"><paramref name="filename"/> is <c>null</c>.</exception>
         public virtual string? ResolveShortcut(string filename)
         {
             if (string.IsNullOrEmpty(filename))
@@ -72,6 +76,7 @@ namespace Emby.Server.Implementations.IO
             return handler?.Resolve(filename);
         }
 
+        /// <inheritdoc />
         public virtual string MakeAbsolutePath(string folderPath, string filePath)
         {
             // path is actually a stream
@@ -233,9 +238,9 @@ namespace Emby.Server.Implementations.IO
                 result.IsDirectory = info is DirectoryInfo || (info.Attributes & FileAttributes.Directory) == FileAttributes.Directory;
 
                 // if (!result.IsDirectory)
-                //{
+                // {
                 //    result.IsHidden = (info.Attributes & FileAttributes.Hidden) == FileAttributes.Hidden;
-                //}
+                // }
 
                 if (info is FileInfo fileInfo)
                 {
@@ -254,7 +259,7 @@ namespace Emby.Server.Implementations.IO
                         catch (FileNotFoundException ex)
                         {
                             // Dangling symlinks cannot be detected before opening the file unfortunately...
-                            Logger.LogError(ex, "Reading the file size of the symlink at {Path} failed. Marking the file as not existing.", fileInfo.FullName);
+                            _logger.LogError(ex, "Reading the file size of the symlink at {Path} failed. Marking the file as not existing.", fileInfo.FullName);
                             result.Exists = false;
                         }
                     }
@@ -343,7 +348,7 @@ namespace Emby.Server.Implementations.IO
             }
             catch (Exception ex)
             {
-                Logger.LogError(ex, "Error determining CreationTimeUtc for {FullName}", info.FullName);
+                _logger.LogError(ex, "Error determining CreationTimeUtc for {FullName}", info.FullName);
                 return DateTime.MinValue;
             }
         }
@@ -358,11 +363,13 @@ namespace Emby.Server.Implementations.IO
             return GetCreationTimeUtc(GetFileSystemInfo(path));
         }
 
+        /// <inheritdoc />
         public virtual DateTime GetCreationTimeUtc(FileSystemMetadata info)
         {
             return info.CreationTimeUtc;
         }
 
+        /// <inheritdoc />
         public virtual DateTime GetLastWriteTimeUtc(FileSystemMetadata info)
         {
             return info.LastWriteTimeUtc;
@@ -382,7 +389,7 @@ namespace Emby.Server.Implementations.IO
             }
             catch (Exception ex)
             {
-                Logger.LogError(ex, "Error determining LastAccessTimeUtc for {FullName}", info.FullName);
+                _logger.LogError(ex, "Error determining LastAccessTimeUtc for {FullName}", info.FullName);
                 return DateTime.MinValue;
             }
         }
@@ -397,6 +404,7 @@ namespace Emby.Server.Implementations.IO
             return GetLastWriteTimeUtc(GetFileSystemInfo(path));
         }
 
+        /// <inheritdoc />
         public virtual void SetHidden(string path, bool isHidden)
         {
             if (!OperatingSystem.IsWindows())
@@ -421,6 +429,7 @@ namespace Emby.Server.Implementations.IO
             }
         }
 
+        /// <inheritdoc />
         public virtual void SetAttributes(string path, bool isHidden, bool readOnly)
         {
             if (!OperatingSystem.IsWindows())
@@ -444,7 +453,7 @@ namespace Emby.Server.Implementations.IO
 
             if (readOnly)
             {
-                attributes = attributes | FileAttributes.ReadOnly;
+                attributes |= FileAttributes.ReadOnly;
             }
             else
             {
@@ -453,7 +462,7 @@ namespace Emby.Server.Implementations.IO
 
             if (isHidden)
             {
-                attributes = attributes | FileAttributes.Hidden;
+                attributes |= FileAttributes.Hidden;
             }
             else
             {
@@ -498,6 +507,7 @@ namespace Emby.Server.Implementations.IO
             File.Copy(temp1, file2, true);
         }
 
+        /// <inheritdoc />
         public virtual bool ContainsSubPath(string parentPath, string path)
         {
             if (string.IsNullOrEmpty(parentPath))
@@ -515,6 +525,7 @@ namespace Emby.Server.Implementations.IO
                 _isEnvironmentCaseInsensitive ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal);
         }
 
+        /// <inheritdoc />
         public virtual string NormalizePath(string path)
         {
             if (string.IsNullOrEmpty(path))
@@ -530,24 +541,16 @@ namespace Emby.Server.Implementations.IO
             return Path.TrimEndingDirectorySeparator(path);
         }
 
+        /// <inheritdoc />
         public virtual bool AreEqual(string path1, string path2)
         {
-            if (path1 == null && path2 == null)
-            {
-                return true;
-            }
-
-            if (path1 == null || path2 == null)
-            {
-                return false;
-            }
-
             return string.Equals(
                 NormalizePath(path1),
                 NormalizePath(path2),
                 _isEnvironmentCaseInsensitive ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal);
         }
 
+        /// <inheritdoc />
         public virtual string GetFileNameWithoutExtension(FileSystemMetadata info)
         {
             if (info.IsDirectory)
@@ -558,11 +561,11 @@ namespace Emby.Server.Implementations.IO
             return Path.GetFileNameWithoutExtension(info.FullName);
         }
 
+        /// <inheritdoc />
         public virtual bool IsPathFile(string path)
         {
-            // Cannot use Path.IsPathRooted because it returns false under mono when using windows-based paths, e.g. C:\\
-            if (path.IndexOf("://", StringComparison.OrdinalIgnoreCase) != -1 &&
-                !path.StartsWith("file://", StringComparison.OrdinalIgnoreCase))
+            if (path.Contains("://", StringComparison.OrdinalIgnoreCase)
+                && !path.StartsWith("file://", StringComparison.OrdinalIgnoreCase))
             {
                 return false;
             }
@@ -570,17 +573,23 @@ namespace Emby.Server.Implementations.IO
             return true;
         }
 
+        /// <inheritdoc />
         public virtual void DeleteFile(string path)
         {
             SetAttributes(path, false, false);
             File.Delete(path);
         }
 
+        /// <inheritdoc />
         public virtual List<FileSystemMetadata> GetDrives()
         {
             // check for ready state to avoid waiting for drives to timeout
             // some drives on linux have no actual size or are used for other purposes
-            return DriveInfo.GetDrives().Where(d => d.IsReady && d.TotalSize != 0 && d.DriveType != DriveType.Ram)
+            return DriveInfo.GetDrives()
+                .Where(
+                    d => (d.DriveType == DriveType.Fixed || d.DriveType == DriveType.Network || d.DriveType == DriveType.Removable)
+                        && d.IsReady
+                        && d.TotalSize != 0)
                 .Select(d => new FileSystemMetadata
                 {
                     Name = d.Name,
@@ -589,16 +598,19 @@ namespace Emby.Server.Implementations.IO
                 }).ToList();
         }
 
+        /// <inheritdoc />
         public virtual IEnumerable<FileSystemMetadata> GetDirectories(string path, bool recursive = false)
         {
             return ToMetadata(new DirectoryInfo(path).EnumerateDirectories("*", GetEnumerationOptions(recursive)));
         }
 
+        /// <inheritdoc />
         public virtual IEnumerable<FileSystemMetadata> GetFiles(string path, bool recursive = false)
         {
             return GetFiles(path, null, false, recursive);
         }
 
+        /// <inheritdoc />
         public virtual IEnumerable<FileSystemMetadata> GetFiles(string path, IReadOnlyList<string>? extensions, bool enableCaseSensitiveExtensions, bool recursive = false)
         {
             var enumerationOptions = GetEnumerationOptions(recursive);
@@ -629,6 +641,7 @@ namespace Emby.Server.Implementations.IO
             return ToMetadata(files);
         }
 
+        /// <inheritdoc />
         public virtual IEnumerable<FileSystemMetadata> GetFileSystemEntries(string path, bool recursive = false)
         {
             var directoryInfo = new DirectoryInfo(path);
@@ -642,16 +655,19 @@ namespace Emby.Server.Implementations.IO
             return infos.Select(GetFileSystemMetadata);
         }
 
+        /// <inheritdoc />
         public virtual IEnumerable<string> GetDirectoryPaths(string path, bool recursive = false)
         {
             return Directory.EnumerateDirectories(path, "*", GetEnumerationOptions(recursive));
         }
 
+        /// <inheritdoc />
         public virtual IEnumerable<string> GetFilePaths(string path, bool recursive = false)
         {
             return GetFilePaths(path, null, false, recursive);
         }
 
+        /// <inheritdoc />
         public virtual IEnumerable<string> GetFilePaths(string path, string[]? extensions, bool enableCaseSensitiveExtensions, bool recursive = false)
         {
             var enumerationOptions = GetEnumerationOptions(recursive);
@@ -682,6 +698,7 @@ namespace Emby.Server.Implementations.IO
             return files;
         }
 
+        /// <inheritdoc />
         public virtual IEnumerable<string> GetFileSystemEntryPaths(string path, bool recursive = false)
         {
             return Directory.EnumerateFileSystemEntries(path, "*", GetEnumerationOptions(recursive));

Emby.Server.Implementations/IO/StreamHelper.cs

@@ -17,11 +17,11 @@ namespace Emby.Server.Implementations.IO
             try
             {
                 int read;
-                while ((read = await source.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false)) != 0)
+                while ((read = await source.ReadAsync(buffer, cancellationToken).ConfigureAwait(false)) != 0)
                 {
                     cancellationToken.ThrowIfCancellationRequested();
 
-                    await destination.WriteAsync(buffer, 0, read, cancellationToken).ConfigureAwait(false);
+                    await destination.WriteAsync(buffer.AsMemory(0, read), cancellationToken).ConfigureAwait(false);
 
                     if (onStarted != null)
                     {
@@ -44,11 +44,11 @@ namespace Emby.Server.Implementations.IO
                 if (emptyReadLimit <= 0)
                 {
                     int read;
-                    while ((read = await source.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false)) != 0)
+                    while ((read = await source.ReadAsync(buffer, cancellationToken).ConfigureAwait(false)) != 0)
                     {
                         cancellationToken.ThrowIfCancellationRequested();
 
-                        await destination.WriteAsync(buffer, 0, read, cancellationToken).ConfigureAwait(false);
+                        await destination.WriteAsync(buffer.AsMemory(0, read), cancellationToken).ConfigureAwait(false);
                     }
 
                     return;
@@ -60,7 +60,7 @@ namespace Emby.Server.Implementations.IO
                 {
                     cancellationToken.ThrowIfCancellationRequested();
 
-                    var bytesRead = await source.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false);
+                    var bytesRead = await source.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
 
                     if (bytesRead == 0)
                     {
@@ -71,7 +71,7 @@ namespace Emby.Server.Implementations.IO
                     {
                         eofCount = 0;
 
-                        await destination.WriteAsync(buffer, 0, bytesRead, cancellationToken).ConfigureAwait(false);
+                        await destination.WriteAsync(buffer.AsMemory(0, bytesRead), cancellationToken).ConfigureAwait(false);
                     }
                 }
             }
@@ -88,13 +88,13 @@ namespace Emby.Server.Implementations.IO
             {
                 int bytesRead;
 
-                while ((bytesRead = await source.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false)) != 0)
+                while ((bytesRead = await source.ReadAsync(buffer, cancellationToken).ConfigureAwait(false)) != 0)
                 {
                     var bytesToWrite = Math.Min(bytesRead, copyLength);
 
                     if (bytesToWrite > 0)
                     {
-                        await destination.WriteAsync(buffer, 0, Convert.ToInt32(bytesToWrite), cancellationToken).ConfigureAwait(false);
+                        await destination.WriteAsync(buffer.AsMemory(0, Convert.ToInt32(bytesToWrite)), cancellationToken).ConfigureAwait(false);
                     }
 
                     copyLength -= bytesToWrite;
@@ -137,9 +137,9 @@ namespace Emby.Server.Implementations.IO
             int bytesRead;
             int totalBytesRead = 0;
 
-            while ((bytesRead = await source.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false)) != 0)
+            while ((bytesRead = await source.ReadAsync(buffer, cancellationToken).ConfigureAwait(false)) != 0)
             {
-                await destination.WriteAsync(buffer, 0, bytesRead, cancellationToken).ConfigureAwait(false);
+                await destination.WriteAsync(buffer.AsMemory(0, bytesRead), cancellationToken).ConfigureAwait(false);
 
                 totalBytesRead += bytesRead;
             }

Emby.Server.Implementations/IStartupOptions.cs

@@ -1,7 +1,8 @@
-#pragma warning disable CS1591
-
 namespace Emby.Server.Implementations
 {
+    /// <summary>
+    /// Specifies the contract for server startup options.
+    /// </summary>
     public interface IStartupOptions
     {
         /// <summary>
@@ -10,7 +11,7 @@ namespace Emby.Server.Implementations
         string? FFmpegPath { get; }
 
         /// <summary>
-        /// Gets a value value indicating whether to run as service by the --service command line option.
+        /// Gets a value indicating whether to run as service by the --service command line option.
         /// </summary>
         bool IsService { get; }
 

Emby.Server.Implementations/Images/BaseDynamicImageProvider.cs

@@ -65,13 +65,13 @@ namespace Emby.Server.Implementations.Images
             if (SupportedImages.Contains(ImageType.Primary))
             {
                 var primaryResult = await FetchAsync(item, ImageType.Primary, options, cancellationToken).ConfigureAwait(false);
-                updateType = updateType | primaryResult;
+                updateType |= primaryResult;
             }
 
             if (SupportedImages.Contains(ImageType.Thumb))
             {
                 var thumbResult = await FetchAsync(item, ImageType.Thumb, options, cancellationToken).ConfigureAwait(false);
-                updateType = updateType | thumbResult;
+                updateType |= thumbResult;
             }
 
             return updateType;

Emby.Server.Implementations/Images/BaseFolderImageProvider.cs

@@ -0,0 +1,67 @@
+#nullable disable
+
+#pragma warning disable CS1591
+
+using System.Collections.Generic;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.Drawing;
+using MediaBrowser.Controller.Dto;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Providers;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Images
+{
+    public abstract class BaseFolderImageProvider<T> : BaseDynamicImageProvider<T>
+        where T : Folder, new()
+    {
+        private readonly ILibraryManager _libraryManager;
+
+        public BaseFolderImageProvider(IFileSystem fileSystem, IProviderManager providerManager, IApplicationPaths applicationPaths, IImageProcessor imageProcessor, ILibraryManager libraryManager)
+            : base(fileSystem, providerManager, applicationPaths, imageProcessor)
+        {
+            _libraryManager = libraryManager;
+        }
+
+        protected override IReadOnlyList<BaseItem> GetItemsWithImages(BaseItem item)
+        {
+            return _libraryManager.GetItemList(new InternalItemsQuery
+            {
+                Parent = item,
+                DtoOptions = new DtoOptions(true),
+                ImageTypes = new ImageType[] { ImageType.Primary },
+                OrderBy = new (string, SortOrder)[]
+                {
+                    (ItemSortBy.IsFolder, SortOrder.Ascending),
+                    (ItemSortBy.SortName, SortOrder.Ascending)
+                },
+                Limit = 1
+            });
+        }
+
+        protected override string CreateImage(BaseItem item, IReadOnlyCollection<BaseItem> itemsWithImages, string outputPathWithoutExtension, ImageType imageType, int imageIndex)
+        {
+            return CreateSingleImage(itemsWithImages, outputPathWithoutExtension, ImageType.Primary);
+        }
+
+        protected override bool Supports(BaseItem item)
+        {
+            return item is T;
+        }
+
+        protected override bool HasChangedByDate(BaseItem item, ItemImageInfo image)
+        {
+            if (item is MusicAlbum)
+            {
+                return false;
+            }
+
+            return base.HasChangedByDate(item, image);
+        }
+    }
+}

Emby.Server.Implementations/Images/CollectionFolderImageProvider.cs

@@ -28,35 +28,35 @@ namespace Emby.Server.Implementations.Images
             var view = (CollectionFolder)item;
             var viewType = view.CollectionType;
 
-            string[] includeItemTypes;
+            BaseItemKind[] includeItemTypes;
 
             if (string.Equals(viewType, CollectionType.Movies, StringComparison.Ordinal))
             {
-                includeItemTypes = new string[] { "Movie" };
+                includeItemTypes = new[] { BaseItemKind.Movie };
             }
             else if (string.Equals(viewType, CollectionType.TvShows, StringComparison.Ordinal))
             {
-                includeItemTypes = new string[] { "Series" };
+                includeItemTypes = new[] { BaseItemKind.Series };
             }
             else if (string.Equals(viewType, CollectionType.Music, StringComparison.Ordinal))
             {
-                includeItemTypes = new string[] { "MusicAlbum" };
+                includeItemTypes = new[] { BaseItemKind.MusicAlbum };
             }
             else if (string.Equals(viewType, CollectionType.Books, StringComparison.Ordinal))
             {
-                includeItemTypes = new string[] { "Book", "AudioBook" };
+                includeItemTypes = new[] { BaseItemKind.Book, BaseItemKind.AudioBook };
             }
             else if (string.Equals(viewType, CollectionType.BoxSets, StringComparison.Ordinal))
             {
-                includeItemTypes = new string[] { "BoxSet" };
+                includeItemTypes = new[] { BaseItemKind.BoxSet };
             }
             else if (string.Equals(viewType, CollectionType.HomeVideos, StringComparison.Ordinal) || string.Equals(viewType, CollectionType.Photos, StringComparison.Ordinal))
             {
-                includeItemTypes = new string[] { "Video", "Photo" };
+                includeItemTypes = new[] { BaseItemKind.Video, BaseItemKind.Photo };
             }
             else
             {
-                includeItemTypes = new string[] { "Video", "Audio", "Photo", "Movie", "Series" };
+                includeItemTypes = new[] { BaseItemKind.Video, BaseItemKind.Audio, BaseItemKind.Photo, BaseItemKind.Movie, BaseItemKind.Series };
             }
 
             var recursive = !string.Equals(CollectionType.Playlists, viewType, StringComparison.OrdinalIgnoreCase);
@@ -68,9 +68,9 @@ namespace Emby.Server.Implementations.Images
                 DtoOptions = new DtoOptions(false),
                 ImageTypes = new ImageType[] { ImageType.Primary },
                 Limit = 8,
-                OrderBy = new ValueTuple<string, SortOrder>[]
+                OrderBy = new[]
                 {
-                    new ValueTuple<string, SortOrder>(ItemSortBy.Random, SortOrder.Ascending)
+                    (ItemSortBy.Random, SortOrder.Ascending)
                 },
                 IncludeItemTypes = includeItemTypes
             });

Emby.Server.Implementations/Images/DynamicImageProvider.cs

@@ -6,6 +6,8 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using Jellyfin.Data.Enums;
+using Jellyfin.Extensions;
 using MediaBrowser.Common.Configuration;
 using MediaBrowser.Controller.Drawing;
 using MediaBrowser.Controller.Dto;
@@ -34,14 +36,14 @@ namespace Emby.Server.Implementations.Images
             var view = (UserView)item;
 
             var isUsingCollectionStrip = IsUsingCollectionStrip(view);
-            var recursive = isUsingCollectionStrip && !new[] { CollectionType.BoxSets, CollectionType.Playlists }.Contains(view.ViewType ?? string.Empty, StringComparer.OrdinalIgnoreCase);
+            var recursive = isUsingCollectionStrip && !new[] { CollectionType.BoxSets, CollectionType.Playlists }.Contains(view.ViewType ?? string.Empty, StringComparison.OrdinalIgnoreCase);
 
             var result = view.GetItemList(new InternalItemsQuery
             {
                 User = view.UserId.HasValue ? _userManager.GetUserById(view.UserId.Value) : null,
                 CollapseBoxSetItems = false,
                 Recursive = recursive,
-                ExcludeItemTypes = new[] { "UserView", "CollectionFolder", "Person" },
+                ExcludeItemTypes = new[] { BaseItemKind.UserView, BaseItemKind.CollectionFolder, BaseItemKind.Person },
                 DtoOptions = new DtoOptions(false)
             });
 

Emby.Server.Implementations/Images/FolderImageProvider.cs

@@ -2,69 +2,16 @@
 
 #pragma warning disable CS1591
 
-using System.Collections.Generic;
-using Jellyfin.Data.Enums;
 using MediaBrowser.Common.Configuration;
 using MediaBrowser.Controller.Drawing;
-using MediaBrowser.Controller.Dto;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Entities.Audio;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Providers;
-using MediaBrowser.Model.Entities;
 using MediaBrowser.Model.IO;
-using MediaBrowser.Model.Querying;
 
 namespace Emby.Server.Implementations.Images
 {
-    public abstract class BaseFolderImageProvider<T> : BaseDynamicImageProvider<T>
-        where T : Folder, new()
-    {
-        protected ILibraryManager _libraryManager;
-
-        public BaseFolderImageProvider(IFileSystem fileSystem, IProviderManager providerManager, IApplicationPaths applicationPaths, IImageProcessor imageProcessor, ILibraryManager libraryManager)
-            : base(fileSystem, providerManager, applicationPaths, imageProcessor)
-        {
-            _libraryManager = libraryManager;
-        }
-
-        protected override IReadOnlyList<BaseItem> GetItemsWithImages(BaseItem item)
-        {
-            return _libraryManager.GetItemList(new InternalItemsQuery
-            {
-                Parent = item,
-                DtoOptions = new DtoOptions(true),
-                ImageTypes = new ImageType[] { ImageType.Primary },
-                OrderBy = new System.ValueTuple<string, SortOrder>[]
-                {
-                    new System.ValueTuple<string, SortOrder>(ItemSortBy.IsFolder, SortOrder.Ascending),
-                    new System.ValueTuple<string, SortOrder>(ItemSortBy.SortName, SortOrder.Ascending)
-                },
-                Limit = 1
-            });
-        }
-
-        protected override string CreateImage(BaseItem item, IReadOnlyCollection<BaseItem> itemsWithImages, string outputPathWithoutExtension, ImageType imageType, int imageIndex)
-        {
-            return CreateSingleImage(itemsWithImages, outputPathWithoutExtension, ImageType.Primary);
-        }
-
-        protected override bool Supports(BaseItem item)
-        {
-            return item is T;
-        }
-
-        protected override bool HasChangedByDate(BaseItem item, ItemImageInfo image)
-        {
-            if (item is MusicAlbum)
-            {
-                return false;
-            }
-
-            return base.HasChangedByDate(item, image);
-        }
-    }
-
     public class FolderImageProvider : BaseFolderImageProvider<Folder>
     {
         public FolderImageProvider(IFileSystem fileSystem, IProviderManager providerManager, IApplicationPaths applicationPaths, IImageProcessor imageProcessor, ILibraryManager libraryManager)
@@ -87,20 +34,4 @@ namespace Emby.Server.Implementations.Images
             return true;
         }
     }
-
-    public class MusicAlbumImageProvider : BaseFolderImageProvider<MusicAlbum>
-    {
-        public MusicAlbumImageProvider(IFileSystem fileSystem, IProviderManager providerManager, IApplicationPaths applicationPaths, IImageProcessor imageProcessor, ILibraryManager libraryManager)
-            : base(fileSystem, providerManager, applicationPaths, imageProcessor, libraryManager)
-        {
-        }
-    }
-
-    public class PhotoAlbumImageProvider : BaseFolderImageProvider<PhotoAlbum>
-    {
-        public PhotoAlbumImageProvider(IFileSystem fileSystem, IProviderManager providerManager, IApplicationPaths applicationPaths, IImageProcessor imageProcessor, ILibraryManager libraryManager)
-            : base(fileSystem, providerManager, applicationPaths, imageProcessor, libraryManager)
-        {
-        }
-    }
 }

Emby.Server.Implementations/Images/GenreImageProvider.cs

@@ -8,9 +8,6 @@ using MediaBrowser.Common.Configuration;
 using MediaBrowser.Controller.Drawing;
 using MediaBrowser.Controller.Dto;
 using MediaBrowser.Controller.Entities;
-using MediaBrowser.Controller.Entities.Audio;
-using MediaBrowser.Controller.Entities.Movies;
-using MediaBrowser.Controller.Entities.TV;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Providers;
 using MediaBrowser.Model.Entities;
@@ -19,46 +16,6 @@ using MediaBrowser.Model.Querying;
 
 namespace Emby.Server.Implementations.Images
 {
-    /// <summary>
-    /// Class MusicGenreImageProvider.
-    /// </summary>
-    public class MusicGenreImageProvider : BaseDynamicImageProvider<MusicGenre>
-    {
-        /// <summary>
-        /// The library manager.
-        /// </summary>
-        private readonly ILibraryManager _libraryManager;
-
-        public MusicGenreImageProvider(IFileSystem fileSystem, IProviderManager providerManager, IApplicationPaths applicationPaths, IImageProcessor imageProcessor, ILibraryManager libraryManager) : base(fileSystem, providerManager, applicationPaths, imageProcessor)
-        {
-            _libraryManager = libraryManager;
-        }
-
-        /// <summary>
-        /// Get children objects used to create an music genre image.
-        /// </summary>
-        /// <param name="item">The music genre used to create the image.</param>
-        /// <returns>Any relevant children objects.</returns>
-        protected override IReadOnlyList<BaseItem> GetItemsWithImages(BaseItem item)
-        {
-            return _libraryManager.GetItemList(new InternalItemsQuery
-            {
-                Genres = new[] { item.Name },
-                IncludeItemTypes = new[]
-                {
-                    nameof(MusicAlbum),
-                    nameof(MusicVideo),
-                    nameof(Audio)
-                },
-                OrderBy = new[] { (ItemSortBy.Random, SortOrder.Ascending) },
-                Limit = 4,
-                Recursive = true,
-                ImageTypes = new[] { ImageType.Primary },
-                DtoOptions = new DtoOptions(false)
-            });
-        }
-    }
-
     /// <summary>
     /// Class GenreImageProvider.
     /// </summary>
@@ -84,7 +41,7 @@ namespace Emby.Server.Implementations.Images
             return _libraryManager.GetItemList(new InternalItemsQuery
             {
                 Genres = new[] { item.Name },
-                IncludeItemTypes = new[] { nameof(Series), nameof(Movie) },
+                IncludeItemTypes = new[] { BaseItemKind.Series, BaseItemKind.Movie },
                 OrderBy = new[] { (ItemSortBy.Random, SortOrder.Ascending) },
                 Limit = 4,
                 Recursive = true,

Emby.Server.Implementations/Images/MusicAlbumImageProvider.cs

@@ -0,0 +1,19 @@
+#pragma warning disable CS1591
+
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.Drawing;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Providers;
+using MediaBrowser.Model.IO;
+
+namespace Emby.Server.Implementations.Images
+{
+    public class MusicAlbumImageProvider : BaseFolderImageProvider<MusicAlbum>
+    {
+        public MusicAlbumImageProvider(IFileSystem fileSystem, IProviderManager providerManager, IApplicationPaths applicationPaths, IImageProcessor imageProcessor, ILibraryManager libraryManager)
+            : base(fileSystem, providerManager, applicationPaths, imageProcessor, libraryManager)
+        {
+        }
+    }
+}

Emby.Server.Implementations/Images/MusicGenreImageProvider.cs

@@ -0,0 +1,59 @@
+#nullable disable
+
+#pragma warning disable CS1591
+
+using System.Collections.Generic;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.Drawing;
+using MediaBrowser.Controller.Dto;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Providers;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Images
+{
+    /// <summary>
+    /// Class MusicGenreImageProvider.
+    /// </summary>
+    public class MusicGenreImageProvider : BaseDynamicImageProvider<MusicGenre>
+    {
+        /// <summary>
+        /// The library manager.
+        /// </summary>
+        private readonly ILibraryManager _libraryManager;
+
+        public MusicGenreImageProvider(IFileSystem fileSystem, IProviderManager providerManager, IApplicationPaths applicationPaths, IImageProcessor imageProcessor, ILibraryManager libraryManager) : base(fileSystem, providerManager, applicationPaths, imageProcessor)
+        {
+            _libraryManager = libraryManager;
+        }
+
+        /// <summary>
+        /// Get children objects used to create an music genre image.
+        /// </summary>
+        /// <param name="item">The music genre used to create the image.</param>
+        /// <returns>Any relevant children objects.</returns>
+        protected override IReadOnlyList<BaseItem> GetItemsWithImages(BaseItem item)
+        {
+            return _libraryManager.GetItemList(new InternalItemsQuery
+            {
+                Genres = new[] { item.Name },
+                IncludeItemTypes = new[]
+                {
+                    BaseItemKind.MusicAlbum,
+                    BaseItemKind.MusicVideo,
+                    BaseItemKind.Audio
+                },
+                OrderBy = new[] { (ItemSortBy.Random, SortOrder.Ascending) },
+                Limit = 4,
+                Recursive = true,
+                ImageTypes = new[] { ImageType.Primary },
+                DtoOptions = new DtoOptions(false)
+            });
+        }
+    }
+}

Emby.Server.Implementations/Images/PhotoAlbumImageProvider.cs

@@ -0,0 +1,19 @@
+#pragma warning disable CS1591
+
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.Drawing;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Providers;
+using MediaBrowser.Model.IO;
+
+namespace Emby.Server.Implementations.Images
+{
+    public class PhotoAlbumImageProvider : BaseFolderImageProvider<PhotoAlbum>
+    {
+        public PhotoAlbumImageProvider(IFileSystem fileSystem, IProviderManager providerManager, IApplicationPaths applicationPaths, IImageProcessor imageProcessor, ILibraryManager libraryManager)
+            : base(fileSystem, providerManager, applicationPaths, imageProcessor, libraryManager)
+        {
+        }
+    }
+}

Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs

@@ -1,8 +1,9 @@
 using System;
 using System.IO;
+using Emby.Naming.Audio;
+using Emby.Naming.Common;
 using MediaBrowser.Controller;
 using MediaBrowser.Controller.Entities;
-using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Resolvers;
 using MediaBrowser.Model.IO;
 
@@ -13,17 +14,17 @@ namespace Emby.Server.Implementations.Library
     /// </summary>
     public class CoreResolutionIgnoreRule : IResolverIgnoreRule
     {
-        private readonly ILibraryManager _libraryManager;
+        private readonly NamingOptions _namingOptions;
         private readonly IServerApplicationPaths _serverApplicationPaths;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="CoreResolutionIgnoreRule"/> class.
         /// </summary>
-        /// <param name="libraryManager">The library manager.</param>
+        /// <param name="namingOptions">The naming options.</param>
         /// <param name="serverApplicationPaths">The server application paths.</param>
-        public CoreResolutionIgnoreRule(ILibraryManager libraryManager, IServerApplicationPaths serverApplicationPaths)
+        public CoreResolutionIgnoreRule(NamingOptions namingOptions, IServerApplicationPaths serverApplicationPaths)
         {
-            _libraryManager = libraryManager;
+            _namingOptions = namingOptions;
             _serverApplicationPaths = serverApplicationPaths;
         }
 
@@ -53,20 +54,10 @@ namespace Emby.Server.Implementations.Library
             {
                 if (parent != null)
                 {
-                    // Ignore trailer folders but allow it at the collection level
-                    if (string.Equals(filename, BaseItem.TrailersFolderName, StringComparison.OrdinalIgnoreCase)
-                        && !(parent is AggregateFolder)
-                        && !(parent is UserRootFolder))
-                    {
-                        return true;
-                    }
-
-                    if (string.Equals(filename, BaseItem.ThemeVideosFolderName, StringComparison.OrdinalIgnoreCase))
-                    {
-                        return true;
-                    }
-
-                    if (string.Equals(filename, BaseItem.ThemeSongsFolderName, StringComparison.OrdinalIgnoreCase))
+                    // Ignore extras folders but allow it at the collection level
+                    if (_namingOptions.AllExtrasTypesFolderNames.ContainsKey(filename)
+                        && parent is not AggregateFolder
+                        && parent is not UserRootFolder)
                     {
                         return true;
                     }
@@ -78,7 +69,7 @@ namespace Emby.Server.Implementations.Library
                 {
                     // Don't resolve these into audio files
                     if (Path.GetFileNameWithoutExtension(filename.AsSpan()).Equals(BaseItem.ThemeSongFileName, StringComparison.Ordinal)
-                        && _libraryManager.IsAudioFile(filename))
+                        && AudioFileParser.IsAudioFile(filename, _namingOptions))
                     {
                         return true;
                     }