youtube: await decipher()s

they are async as of https://github.com/LuanRT/YouTube.js/pull/1047

.dockerignore

@@ -0,0 +1,21 @@
+# OS directory info files
+.DS_Store
+desktop.ini
+
+# node
+node_modules
+
+# static build
+build
+
+# secrets
+.env
+.env.*
+!.env.example
+cookies.json
+
+# docker
+docker-compose.yml
+
+# ide
+.vscode

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -7,7 +7,7 @@ body:
       value: |
         thanks for taking the time to make a feature request!
         before you start, please make to read the "adding features or support for services" section of
-        our [contributor guidelines](https://github.com/imputnet/cobalt/blob/current/CONTRIBUTING.md#adding-features-or-support-for-services) to make sure your request is a good fit for cobalt.
+        our [contributor guidelines](https://github.com/imputnet/cobalt/blob/main/CONTRIBUTING.md#adding-features-or-support-for-services) to make sure your request is a good fit for cobalt.
   - type: textarea
     id: feat-description
     attributes:

.github/ISSUE_TEMPLATE/service-request.yml

@@ -8,7 +8,7 @@ body:
       value: |
         thanks for taking the time to make a service request!
         before you start, please make to read the "adding features or support for services" section of
-        our [contributor guidelines](https://github.com/imputnet/cobalt/blob/current/CONTRIBUTING.md#adding-features-or-support-for-services) to make sure your request is a good fit for cobalt.
+        our [contributor guidelines](https://github.com/imputnet/cobalt/blob/main/CONTRIBUTING.md#adding-features-or-support-for-services) to make sure your request is a good fit for cobalt.
   - type: input
     id: service-name
     attributes:

.github/test.sh

@@ -13,19 +13,20 @@ waitport() {
 
 test_api() {
     waitport 3000
-    curl -m 3 http://localhost:3000/api/serverInfo
-    API_RESPONSE=$(curl -m 3 http://localhost:3000/api/json \
+    curl -m 3 http://localhost:3000/
+    API_RESPONSE=$(curl -m 10 http://localhost:3000/ \
          -X POST \
          -H "Accept: application/json" \
          -H "Content-Type: application/json" \
-         -d '{"url":"https://vine.co/v/huwVJIEJW50", "isAudioOnly": true}')
+         -d '{"url":"https://garfield-69.tumblr.com/post/696499862852780032","alwaysProxy":true}')
 
-    echo "$API_RESPONSE"
+    echo "API_RESPONSE=$API_RESPONSE"
     STATUS=$(echo "$API_RESPONSE" | jq -r .status)
     STREAM_URL=$(echo "$API_RESPONSE" | jq -r .url)
-    [ "$STATUS" = stream ] || exit 1;
+    [ "$STATUS" = tunnel ] || exit 1;
+    S=$(curl -I -m 10 "$STREAM_URL")
 
-    CONTENT_LENGTH=$(curl -I -m 3 "$STREAM_URL" \
+    CONTENT_LENGTH=$(echo "$S" \
                         | grep -i content-length \
                         | cut -d' ' -f2 \
                         | tr -d '\r')
@@ -37,37 +38,31 @@ test_api() {
     fi
 }
 
-test_web() {
-    waitport 3001
-    curl -m 3 http://127.0.0.1:3001/onDemand?blockId=0 \
-        | grep -q '"status":"success"' 
-}
-
 setup_api() {
     export API_PORT=3000
     export API_URL=http://localhost:3000
-    timeout 10 npm run start
+    timeout 10 pnpm run --prefix api start &
+    API_PID=$!
 }
 
 setup_web() {
-    export WEB_PORT=3001
-    export WEB_URL=http://localhost:3001
-    export API_URL=http://localhost:3000
-    timeout 5 npm run start
+    pnpm run --prefix web check
+    pnpm run --prefix web build
 }
 
 cd "$(git rev-parse --show-toplevel)"
-npm i
+pnpm install --frozen-lockfile
 
 if [ "$1" = "api" ]; then
-    setup_api &
+    setup_api
     test_api
+    [ "$API_PID" != "" ] \
+        && kill "$API_PID"
 elif [ "$1" = "web" ]; then
-    setup_web &
-    test_web
+    setup_web
 else
     echo "usage: $0 <api/web>" >&2
     exit 1
 fi
 
-wait || exit $?
+wait || exit $?

.github/workflows/codeql.yml

@@ -0,0 +1,93 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+    branches: [ "main", "7" ]
+  schedule:
+    - cron: '33 7 * * 5'
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    # Runner size impacts CodeQL analysis time. To learn more, please see:
+    #   - https://gh.io/recommended-hardware-resources-for-running-codeql
+    #   - https://gh.io/supported-runners-and-hardware-resources
+    #   - https://gh.io/using-larger-runners (GitHub.com only)
+    # Consider using larger runners or machines with greater resources for possible analysis time improvements.
+    runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'ubuntu-latest' }}
+    permissions:
+      # required for all workflows
+      security-events: write
+
+      # required to fetch internal or private CodeQL packs
+      packages: read
+
+      # only required for workflows in private repositories
+      actions: read
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - language: javascript-typescript
+          build-mode: none
+        # CodeQL supports the following values keywords for 'language': 'c-cpp', 'csharp', 'go', 'java-kotlin', 'javascript-typescript', 'python', 'ruby', 'swift'
+        # Use `c-cpp` to analyze code written in C, C++ or both
+        # Use 'java-kotlin' to analyze code written in Java, Kotlin or both
+        # Use 'javascript-typescript' to analyze code written in JavaScript, TypeScript or both
+        # To learn more about changing the languages that are analyzed or customizing the build mode for your analysis,
+        # see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/customizing-your-advanced-setup-for-code-scanning.
+        # If you are analyzing a compiled language, you can modify the 'build-mode' for that language to customize how
+        # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+        build-mode: ${{ matrix.build-mode }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+
+        # For more details on CodeQL's query packs, refer to: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+        # queries: security-extended,security-and-quality
+
+    # If the analyze step fails for one of the languages you are analyzing with
+    # "We were unable to automatically build your code", modify the matrix above
+    # to set the build mode to "manual" for that language. Then modify this step
+    # to build your code.
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+    - if: matrix.build-mode == 'manual'
+      shell: bash
+      run: |
+        echo 'If you are using a "manual" build mode for one or more of the' \
+          'languages you are analyzing, replace this with the commands to build' \
+          'your code, for example:'
+        echo '  make bootstrap'
+        echo '  make release'
+        exit 1
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
+      with:
+        category: "/language:${{matrix.language}}"

.github/workflows/docker-develop.yml

@@ -1,4 +1,4 @@
-name: Build Docker development image
+name: Build development Docker image
 
 on:
   workflow_dispatch:

.github/workflows/docker-staging.yml

@@ -0,0 +1,55 @@
+name: Build staging Docker image
+
+on:
+  workflow_dispatch:
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Get release metadata
+        id: release-meta
+        run: |
+            version=$(cat package.json | jq -r .version)
+            echo "commit_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+            echo "version=$version" >> $GITHUB_OUTPUT
+            echo "major_version=$(echo "$version" | cut -d. -f1)" >> $GITHUB_OUTPUT
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          tags: type=raw,value=staging
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: linux/amd64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

.github/workflows/docker.yml

@@ -1,4 +1,4 @@
-name: Build Docker image
+name: Build release Docker image
 
 on:
   workflow_dispatch:
@@ -32,7 +32,7 @@ jobs:
       - name: Get release metadata
         id: release-meta
         run: |
-            version=$(cat package.json | jq -r .version)
+            version=$(cat api/package.json | jq -r .version)
             echo "commit_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
             echo "version=$version" >> $GITHUB_OUTPUT
             echo "major_version=$(echo "$version" | cut -d. -f1)" >> $GITHUB_OUTPUT
@@ -51,7 +51,7 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           context: .
-          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          platforms: linux/amd64,linux/arm64
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

.github/workflows/test-services.yml

@@ -0,0 +1,37 @@
+name: Run service tests
+
+on:
+  pull_request:
+  push:
+    paths:
+      - api/**
+      - packages/**
+
+jobs:
+  check-services:
+    name: test service functionality
+    runs-on: ubuntu-latest
+    outputs:
+      services: ${{ steps.checkServices.outputs.service_list }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
+      - id: checkServices
+        run: pnpm i --frozen-lockfile && echo "service_list=$(node api/src/util/test get-services)" >> "$GITHUB_OUTPUT"
+
+  test-services:
+    needs: check-services
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        service: ${{ fromJson(needs.check-services.outputs.services) }}
+    name: "test service: ${{ matrix.service }}"
+    steps:
+      - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
+      - run: pnpm i --frozen-lockfile
+      - run: node api/src/util/test run-tests-for ${{ matrix.service }}
+        env:
+          HTTP_PROXY: ${{ secrets.API_EXTERNAL_PROXY }}
+          TEST_IGNORE_SERVICES: ${{ vars.TEST_IGNORE_SERVICES }}

.github/workflows/test.yml

@@ -3,60 +3,34 @@ name: Run tests
 on:
   pull_request:
   push:
-    branches: [ current ]
 
 jobs:
   check-lockfile:
     name: check lockfile correctness
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
+      - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
       - name: Check that lockfile does not need an update
-        run: |
-          cp package-lock.json before.json
-          npm ci
-          npm i --package-lock-only
-          diff before.json package-lock.json
+        run: pnpm install --frozen-lockfile
 
   test-web:
     name: web sanity check
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-      - name: Run test script
-        run: .github/test.sh web
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 'lts/*'
+      - uses: pnpm/action-setup@v4
+      - run: .github/test.sh web
+        env:
+          WEB_DEFAULT_API: https://api.dummy.example/
 
   test-api:
     name: api sanity check
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-      - name: Run test script
-        run: .github/test.sh api
-
-  check-services:
-    name: test service functionality
-    runs-on: ubuntu-latest
-    outputs:
-      services: ${{ steps.checkServices.outputs.service_list }}
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-      - id: checkServices
-        run: npm ci && echo "service_list=$(node src/util/test-ci get-services)" >> "$GITHUB_OUTPUT"
-
-  test-services:
-    needs: check-services
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        service: ${{ fromJson(needs.check-services.outputs.services) }}
-    name: "test service: ${{ matrix.service }}"
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-      - run: npm ci && node src/util/test-ci run-tests-for ${{ matrix.service }}
+      - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
+      - run: .github/test.sh api

.gitignore

@@ -1,21 +1,22 @@
-# os stuff
+# OS directory info files
 .DS_Store
 desktop.ini
 
-# npm
+# node
 node_modules
 
+# static build
+build
+
 # secrets
 .env
+.env.*
+!.env.example
+cookies.json
+keys.json
 
 # docker
 docker-compose.yml
 
-# vscode
+# ide
 .vscode
-
-# cookie file
-cookies.json
-
-# page build
-build

CONTRIBUTING.md

@@ -4,7 +4,23 @@ if you're reading this, you are probably interested in contributing to cobalt, w
 this document serves as a guide to help you make contributions that we can merge into the cobalt codebase.
 
 ## translations
-currently, we are **not accepting** translations of cobalt. this is because we are making significant changes to the frontend, and the currently used localization structure is being completely reworked. if this changes, this document will be updated.
+we are currently accepting translations via the [i18n platform](https://i18n.imput.net).
+
+thank you for showing interest in making cobalt more accessible around the world, we really appreciate it! here are some guidelines for how a cobalt translation should look:
+
+- cobalt's writing style is informal. please do not use formal language, unless there is no other way to express the same idea of the original text in your language.
+- all cobalt text is written in lowercase. this is a stylistic choice, please do not capitalize translated sentences.
+- do not translate the name "cobalt", or "imput"
+- you can translate "meowbalt" into whatever your language's equivalent of _meow_ is (e.g. _miaubalt_ in German)
+- **please don't translate cobalt into languages which you are not experienced in.** we can use google translate ourselves, but we would prefer cobalt to be translated by humans, not computers.
+
+if your language does not exist on the translation platform yet, you can request to add it by adding it to any of cobalt's components (e.g. [here](https://i18n.imput.net/projects/cobalt/about/)).
+
+before translating a piece of text, check that no one has made a translation yet. pending translations are displayed in the **Suggestions** tab on the translate page. if someone already made a suggestion, and you think it's correct, you can upvote it! this helps us distinguish that a translation is correct.
+
+if no one has submitted a translation, or the submitted translation seems wrong to you, you can submit your translation by clicking the **Suggest** button for each individual string, which sends it off for human review. we will then check it to to ensure no malicious translations are submitted, and add it to cobalt.
+
+if any translation string's meaning seems unclear to you, please leave a comment on the *Comments* tab, and we will either add an explanation or a screenshot.
 
 ## adding features or support for services
 before putting in the effort to implement a feature, it's worth considering whether it would be appropriate to add it to cobalt. the cobalt api is built to assist people **only with downloading freely accessible content**. other functionality, such as:
@@ -22,9 +38,9 @@ when contributing code to cobalt, there are a few guidelines in place to ensure
 ### clean commit messages
 internally, we use a format similar to [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/) - the first part signifies which part of the code you are changing (the *scope*), and the second part explains the change. for inspiration on how to write appropriate commit titles, you can take a look at the [commit history](https://github.com/imputnet/cobalt/commits/).
 
-the scope is not strictly defined, you can write whatever you find most fitting for the particular change. suppose you are changing a small part of a more significant part of the codebase. in that case, you can specify both the larger and smaller scopes in the commit message for clarity (e.g., if you were changing something in internal streams, the commit could be something like `stream/internal: fix object not being handled properly`).
+the scope is not strictly defined, you can write whatever you find most fitting for the particular change. suppose you are changing a small part of a more significant part of the codebase. in that case, you can specify both the larger and smaller scopes in the commit message for clarity (e.g., if you were changing something in internal streams, the commit could be something like `api/stream: fix object not being handled properly`).
 
-if you think a change deserves further explanation, we encourage you to write a short explanation in the commit message ([example](https://github.com/imputnet/cobalt/commit/d2e5b6542f71f3809ba94d56c26f382b5cb62762)), which will save both you and us time having to enquire about the change, and you explaining the reason behind it.
+if you think a change deserves further explanation, we encourage you to write a short explanation in the commit message ([example](https://github.com/imputnet/cobalt/commit/31be60484de8eaf63bba8a4f508e16438aa7ba6e)), which will save both you and us time having to enquire about the change, and you explaining the reason behind it.
 
 if your contribution has uninformative commit titles, you may be asked to interactively rebase your branch and amend each commit to include a meaningful title.
 

Dockerfile

@@ -1,15 +1,26 @@
-FROM node:18-bullseye-slim
+FROM node:24-alpine AS base
+ENV PNPM_HOME="/pnpm"
+ENV PATH="$PNPM_HOME:$PATH"
+
+FROM base AS build
+WORKDIR /app
+COPY . /app
+
+RUN corepack enable
+RUN apk add --no-cache python3 alpine-sdk
+
+RUN --mount=type=cache,id=pnpm,target=/pnpm/store \
+    pnpm install --prod --frozen-lockfile
+
+RUN pnpm deploy --filter=@imput/cobalt-api --prod /prod/api
+
+FROM base AS api
 WORKDIR /app
 
-COPY package*.json ./
+COPY --from=build --chown=node:node /prod/api /app
+COPY --from=build --chown=node:node /app/.git /app/.git
 
-RUN apt-get update                                    && \
-    apt-get install -y git python3 build-essential    && \
-    npm ci                                            && \
-    npm cache clean --force                           && \
-    apt purge --autoremove -y python3 build-essential && \
-    rm -rf ~/.cache/ /var/lib/apt/lists/*
+USER node
 
-COPY . .
 EXPOSE 9000
 CMD [ "node", "src/cobalt" ]

README.md

@@ -1,136 +1,72 @@
-# cobalt
-best way to save what you love: [cobalt.tools](https://cobalt.tools/)  
+<div align="center">
+    <br/>
+    <p>
+        <img src="web/static/favicon.png" title="cobalt" alt="cobalt logo" width="100" />
+    </p>
+    <p>
+        best way to save what you love
+        <br/>
+        <a href="https://cobalt.tools">
+            cobalt.tools
+        </a>
+    </p>
+    <p>
+        <a href="https://discord.gg/pQPt8HBUPu">
+            💬 community discord server
+        </a>
+        <br/>
+        <a href="https://x.com/justusecobalt">
+            🐦 twitter
+        </a>
+        <a href="https://bsky.app/profile/cobalt.tools">
+            🦋 bluesky
+        </a>
+    </p>
+    <br/>
+</div>
 
-![cobalt logo with repeated logo (double arrow) pattern background](/src/front/icons/pattern.png "cobalt logo with repeated logo (double arrow) pattern background")  
+cobalt is a media downloader that doesn't piss you off. it's friendly, efficient, and doesn't have ads, trackers, paywalls or other nonsense.
 
-[💬 community discord server](https://discord.gg/pQPt8HBUPu)  
-[🐦 twitter/x](https://x.com/justusecobalt)  
+paste the link, get the file, move on. that simple, just how it should be.
 
-## what's cobalt?
-cobalt is a media downloader that doesn't piss you off. it's fast, friendly, and doesn't have any bullshit that modern web is filled with: ***no ads, trackers, or invasive analytics***.  
+### sponsors
+<div align="center" markdown="1">
+    <sup>special thanks to Warp for sponsoring the development of cobalt</sup>
+    <br>
+    <a href="https://go.warp.dev/cobalt">
+        <img alt="Warp banner" width="400" src="https://raw.githubusercontent.com/warpdotdev/brand-assets/be7d584f98e62b1579fd2e9338d4c7318a732f1b/Github/Sponsor/Warp-Github-LG-03.png">
+    </a>
 
-paste the link, get the file, move on. it's that simple. just how it should be.
+### [Warp, built for coding with multiple AI agents](https://go.warp.dev/cobalt)
+</div>
 
-## supported services
-this list is not final and keeps expanding over time. if support for a service you want is missing, create an issue (or a pull request 👀).
+#### RoyaleHosting
+cobalt is sponsored by [royalehosting.net](https://royalehosting.net/?partner=cobalt), and a part of our infrastructure is hosted on their network. we really appreciate their kindness and support!
 
-| service                        | video + audio | only audio | only video | metadata | rich file names |
-| :--------                      | :-----------: | :--------: | :--------: | :------: | :-------------: |
-| bilibili.com & bilibili.tv     | ✅            | ✅         | ✅         | ➖         | ➖              |
-| dailymotion                    | ✅            | ✅         | ✅         | ✅         | ✅              |
-| instagram posts & reels        | ✅            | ✅         | ✅         | ➖         | ➖              |
-| facebook videos                | ✅            | ❌         | ❌         | ➖         | ➖              |
-| loom                           | ✅            | ❌         | ✅         | ✅         | ➖              |
-| ok video                       | ✅            | ❌         | ✅         | ✅         | ✅              |
-| pinterest                      | ✅            | ✅         | ✅         | ➖         | ➖              |
-| reddit                         | ✅            | ✅         | ✅         | ❌         | ❌              |
-| rutube                         | ✅            | ✅         | ✅         | ✅         | ✅              |
-| snapchat stories & spotlights  | ✅            | ✅         | ✅         | ➖         | ➖              |
-| soundcloud                     | ➖            | ✅         | ➖         | ✅         | ✅              |
-| streamable                     | ✅            | ✅         | ✅         | ➖         | ➖              |
-| tiktok                         | ✅            | ✅         | ✅         | ❌         | ❌              |
-| tumblr                         | ✅            | ✅         | ✅         | ➖         | ➖              |
-| twitch clips                   | ✅            | ✅         | ✅         | ✅         | ✅              |
-| twitter/x                      | ✅            | ✅         | ✅         | ➖         | ➖              |
-| vimeo                          | ✅            | ✅         | ✅         | ✅         | ✅              |
-| vine archive                   | ✅            | ✅         | ✅         | ➖         | ➖              |
-| vk videos & clips              | ✅            | ❌         | ✅         | ✅         | ✅              |
-| youtube videos, shorts & music | ✅            | ✅         | ✅         | ✅         | ✅              |
+### cobalt monorepo
+this monorepo includes source code for api, frontend, and related packages:
+- [api tree & readme](/api/)
+- [web tree & readme](/web/)
+- [packages tree](/packages/)
 
-| emoji   | meaning                 |
-| :-----: | :---------------------- |
-| ✅      | supported               |
-| ➖      | impossible/unreasonable |
-| ❌      | not supported           |
+it also includes documentation in the [docs tree](/docs/):
+- [how to run a cobalt instance](/docs/run-an-instance.md)
+- [how to protect a cobalt instance](/docs/protect-an-instance.md)
+- [cobalt api instance environment variables](/docs/api-env-variables.md)
+- [cobalt api documentation](/docs/api.md)
 
-### additional notes or features (per service)
-| service    | notes or features                                                                                                    |
-| :--------  | :-----                                                                                                               |
-| instagram  | supports reels, photos, and videos. lets you pick what to save from multi-media posts.                               |
-| facebook   | supports public accessible videos content only.                                                                      |
-| pinterest  | supports photos, gifs, videos and stories.                                                                           |
-| reddit     | supports gifs and videos.                                                                                            |
-| snapchat   | supports spotlights and stories. lets you pick what to save from stories.                                            |
-| rutube     | supports yappy & private links.                                                                                      |
-| soundcloud | supports private links.                                                                                              |
-| tiktok     | supports videos with or without watermark, images from slideshow without watermark, and full (original) audios.      |
-| twitter/x  | lets you pick what to save from multi-media posts. may not be 100% reliable due to current management.               |
-| vimeo      | audio downloads are only available for dash.                                                                         |
-| youtube    | supports videos, music, and shorts. 8K, 4K, HDR, VR, and high FPS videos. rich metadata & dubs. h264/av1/vp9 codecs. |
+### ethics
+cobalt is a tool that makes downloading public content easier. it takes **zero liability**.
+the end user is responsible for what they download, how they use and distribute that content.
+cobalt never caches any content, it [works like a fancy proxy](/api/src/stream/).
 
-## cobalt api
-cobalt has an open api that you can use in your projects *for free~*. it's easy and straightforward to use, [check out the docs](/docs/api.md) to learn how to use it. 
+cobalt is in no way a piracy tool and cannot be used as such.
+it can only download free & publicly accessible content.
+same content can be downloaded via dev tools of any modern web browser.
 
-✅ you can use the main api instance ([api.cobalt.tools](https://api.cobalt.tools/)) in your **personal** projects.  
-❌ you cannot use the free api commercially (anywhere that's gated behind paywalls or ads). host your own instance for this.
+### contributing
+if you're considering contributing to cobalt, first of all, thank you! check the [contribution guidelines here](/CONTRIBUTING.md) before getting started, they'll help you do your best right away.
 
-we reserve the right to restrict abusive/excessive access to the main instance api.
-
-## how to run your own instance
-if you want to run your own instance for whatever purpose, [follow this guide](/docs/run-an-instance.md).  
-it's *highly* recommended to use a docker compose method unless you run for developing/debugging purposes.
-
-## partners 
-cobalt is sponsored by [royalehosting.net](https://royalehosting.net/?partner=cobalt), all main instances are currently hosted on their network :)  
-
-## ethics and disclaimer
-cobalt is a tool for easing content downloads from internet and takes ***zero liability***. you are responsible for what you download, how you use and distribute that content. please be mindful when using content of others and always credit original creators. fair use and credits benefit everyone.
-
-cobalt is ***NOT*** a piracy tool and cannot be used as such. it can only download free, publicly accessible content. such content can be easily downloaded through any browser's dev tools. pressing one button is easier, so i made a convenient, ad-less tool for such repeated actions.
-
-## cobalt license
-cobalt code is licensed under [AGPL-3.0](/LICENSE).
-
-cobalt branding, mascots, and other related assets included in the repo are ***copyrighted*** and not covered by the AGPL-3.0 license. you ***cannot*** use them under same terms.  
-
-you are allowed to host an ***unmodified*** instance of cobalt with branding, but this ***does not*** give you permission to use it anywhere else, or make derivatives of it in any way.
-
-### notes:
-- mascots and other assets are a part of the branding.
-
-- when making an alternative version of the project, please replace or remove all branding (including the name).
-
-- you **must** link the original repo when using any parts of code (such as using separate processing modules in your project) or forking the project.
-
-- if you make a modified version of cobalt, the codebase **must** be published under the same license (according to AGPL-3.0).
-
-## 3rd party licenses
-- [Fluent Emoji by Microsoft](https://github.com/microsoft/fluentui-emoji) (used in cobalt) is under [MIT](https://github.com/microsoft/fluentui-emoji/blob/main/LICENSE) license.  
-- [Noto Sans Mono](https://fonts.google.com/noto/specimen/Noto+Sans+Mono/) fonts (used in cobalt) are licensed under the [OFL](https://fonts.google.com/noto/specimen/Noto+Sans+Mono/about) license.  
-- many update banners were taken from [tenor.com](https://tenor.com/).  
-
-## acknowledgements
-### ffmpeg
-cobalt heavily relies on ffmpeg for converting and merging media files. it's an absolutely amazing piece of software offered for anyone for free, yet doesn't receive as much credit as it should.
-
-you can [support ffmpeg here](https://ffmpeg.org/donations.html)!
-
-#### ffmpeg-static
-we use [ffmpeg-static](https://github.com/eugeneware/ffmpeg-static) to get binaries for ffmpeg depending on the platform.
-
-you can support the developer via various methods listed on their github page! (linked above)
-
-### youtube.js
-cobalt relies on [youtube.js](https://github.com/LuanRT/YouTube.js) for interacting with the innertube api, it wouldn't have been possible without it.  
-
-you can support the developer via various methods listed on their github page! (linked above)
-
-### many others
-cobalt also depends on:
-
-- [content-disposition-header](https://www.npmjs.com/package/content-disposition-header) to simplify the provision of `content-disposition` headers.
-- [cors](https://www.npmjs.com/package/cors) to manage cross-origin resource sharing within expressjs.
-- [dotenv](https://www.npmjs.com/package/dotenv) to load environment variables from the `.env` file.
-- [esbuild](https://www.npmjs.com/package/esbuild) to minify the frontend files.
-- [express](https://www.npmjs.com/package/express) as the backbone of cobalt servers.
-- [express-rate-limit](https://www.npmjs.com/package/express-rate-limit) to rate limit api endpoints.
-- [hls-parser](https://www.npmjs.com/package/hls-parser) to parse `m3u8` playlists for certain services.
-- [ipaddr.js](https://www.npmjs.com/package/ipaddr.js) to parse ip addresses (for rate limiting).
-- [nanoid](https://www.npmjs.com/package/nanoid) to generate unique (temporary) identifiers for each requested stream.
-- [node-cache](https://www.npmjs.com/package/node-cache) to cache stream info in server ram for a limited amount of time.
-- [psl](https://www.npmjs.com/package/psl) as the domain name parser.
-- [set-cookie-parser](https://www.npmjs.com/package/set-cookie-parser) to parse cookies that cobalt receives from certain services.
-- [undici](https://www.npmjs.com/package/undici) for making http requests.
-- [url-pattern](https://www.npmjs.com/package/url-pattern) to match provided links with supported patterns.
-
-...and many other packages that these packages rely on.
+### licenses
+for relevant licensing information, see the [api](api/README.md) and [web](web/README.md) READMEs.
+unless specified otherwise, the remainder of this repository is licensed under [AGPL-3.0](LICENSE).

api/LICENSE

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
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+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
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+
+  10. Automatic Licensing of Downstream Recipients.
+
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+any patent claim is infringed by making, using, selling, offering for
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+
+  11. Patents.
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+  A "contributor" is a copyright holder who authorizes use under this
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+
+  A contributor's "essential patent claims" are all patent claims
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+available, or (2) arrange to deprive yourself of the benefit of the
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+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
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+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
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+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
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+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    save what you love with cobalt.
+    Copyright (C) 2024 imput
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

api/README.md

@@ -0,0 +1,104 @@
+# cobalt api
+this directory includes the source code for cobalt api. it's made with [express.js](https://www.npmjs.com/package/express) and love!
+
+## running your own instance
+if you want to run your own instance for whatever purpose, [follow this guide](/docs/run-an-instance.md).
+we recommend to use docker compose unless you intend to run cobalt for developing/debugging purposes.
+
+## accessing the api
+there is currently no publicly available pre-hosted api.
+we recommend [deploying your own instance](/docs/run-an-instance.md) if you wish to use the cobalt api.
+
+you can read [the api documentation here](/docs/api.md).
+
+## supported services
+this list is not final and keeps expanding over time!
+if the desired service isn't supported yet, feel free to create an appropriate issue (or a pull request 👀).
+
+| service           | video + audio | only audio | only video | metadata | rich file names |
+| :--------         | :-----------: | :--------: | :--------: | :------: | :-------------: |
+| bilibili          | ✅            | ✅         | ✅         | ➖         | ➖              |
+| bluesky           | ✅            | ✅         | ✅         | ➖         | ➖              |
+| dailymotion       | ✅            | ✅         | ✅         | ✅         | ✅              |
+| instagram         | ✅            | ✅         | ✅         | ➖         | ➖              |
+| facebook          | ✅            | ❌         | ✅         | ➖         | ➖              |
+| loom              | ✅            | ❌         | ✅         | ✅         | ➖              |
+| newgrounds        | ✅            | ✅         | ✅         | ✅         | ✅              |
+| ok.ru             | ✅            | ❌         | ✅         | ✅         | ✅              |
+| pinterest         | ✅            | ✅         | ✅         | ➖         | ➖              |
+| reddit            | ✅            | ✅         | ✅         | ❌         | ❌              |
+| rutube            | ✅            | ✅         | ✅         | ✅         | ✅              |
+| snapchat          | ✅            | ✅         | ✅         | ➖         | ➖              |
+| soundcloud        | ➖            | ✅         | ➖         | ✅         | ✅              |
+| streamable        | ✅            | ✅         | ✅         | ➖         | ➖              |
+| tiktok            | ✅            | ✅         | ✅         | ❌         | ❌              |
+| tumblr            | ✅            | ✅         | ✅         | ➖         | ➖              |
+| twitch clips      | ✅            | ✅         | ✅         | ✅         | ✅              |
+| twitter/x         | ✅            | ✅         | ✅         | ➖         | ➖              |
+| vimeo             | ✅            | ✅         | ✅         | ✅         | ✅              |
+| vk videos & clips | ✅            | ❌         | ✅         | ✅         | ✅              |
+| xiaohongshu       | ✅            | ✅         | ✅         | ➖         | ➖              |
+| youtube           | ✅            | ✅         | ✅         | ✅         | ✅              |
+
+| emoji   | meaning                 |
+| :-----: | :---------------------- |
+| ✅      | supported               |
+| ➖      | unreasonable/impossible |
+| ❌      | not supported           |
+
+### additional notes or features (per service)
+| service    | notes or features                                                                                                    |
+| :--------  | :-----                                                                                                               |
+| instagram  | supports reels, photos, and videos. lets you pick what to save from multi-media posts.                               |
+| facebook   | supports public accessible videos content only.                                                                      |
+| pinterest  | supports photos, gifs, videos and stories.                                                                           |
+| reddit     | supports gifs and videos.                                                                                            |
+| snapchat   | supports spotlights and stories. lets you pick what to save from stories.                                            |
+| rutube     | supports yappy & private links.                                                                                      |
+| soundcloud | supports private links.                                                                                              |
+| tiktok     | supports videos with or without watermark, images from slideshow without watermark, and full (original) audios.      |
+| twitter/x  | lets you pick what to save from multi-media posts. may not be 100% reliable due to current management.               |
+| vimeo      | audio downloads are only available for dash.                                                                         |
+| youtube    | supports videos, music, and shorts. 8K, 4K, HDR, VR, and high FPS videos. rich metadata & dubs. h264/av1/vp9 codecs. |
+
+## license
+cobalt api code is licensed under [AGPL-3.0](LICENSE).
+
+this license allows you to modify, distribute and use the code for any purpose
+as long as you:
+- give appropriate credit to the original repo when using or modifying any parts of the code,
+- provide a link to the license and indicate if changes to the code were made, and
+- release the code under the **same license**
+
+## open source acknowledgements
+### ffmpeg
+cobalt relies on ffmpeg for muxing and encoding media files. ffmpeg is absolutely spectacular and we're privileged to have the ability to use it for free, just like anyone else. we believe it should be way more recognized.
+
+you can [support ffmpeg here](https://ffmpeg.org/donations.html)!
+
+### youtube.js
+cobalt relies on **[youtube.js](https://github.com/LuanRT/YouTube.js)** for interacting with youtube's innertube api, it wouldn't have been possible without this package.
+
+you can support the developer via various methods listed on their github page!
+(linked above)
+
+### many others
+cobalt-api also depends on:
+
+- **[content-disposition-header](https://www.npmjs.com/package/content-disposition-header)** to simplify the provision of `content-disposition` headers.
+- **[cors](https://www.npmjs.com/package/cors)** to manage cross-origin resource sharing within expressjs.
+- **[dotenv](https://www.npmjs.com/package/dotenv)** to load environment variables from the `.env` file.
+- **[express](https://www.npmjs.com/package/express)** as the backbone of cobalt servers.
+- **[express-rate-limit](https://www.npmjs.com/package/express-rate-limit)** to rate limit api endpoints.
+- **[ffmpeg-static](https://www.npmjs.com/package/ffmpeg-static)** to get binaries for ffmpeg depending on the platform.
+- **[hls-parser](https://www.npmjs.com/package/hls-parser)** to parse HLS playlists according to spec (very impressive stuff).
+- **[ipaddr.js](https://www.npmjs.com/package/ipaddr.js)** to parse ip addresses (used for rate limiting).
+- **[nanoid](https://www.npmjs.com/package/nanoid)** to generate unique identifiers for each requested tunnel.
+- **[set-cookie-parser](https://www.npmjs.com/package/set-cookie-parser)** to parse cookies that cobalt receives from certain services.
+- **[undici](https://www.npmjs.com/package/undici)** for making http requests.
+- **[url-pattern](https://www.npmjs.com/package/url-pattern)** to match provided links with supported patterns.
+- **[zod](https://www.npmjs.com/package/zod)** to lock down the api request schema.
+- **[@datastructures-js/priority-queue](https://www.npmjs.com/package/@datastructures-js/priority-queue)** for sorting stream caches for future clean up (without redis).
+- **[@imput/psl](https://www.npmjs.com/package/@imput/psl)** as the domain name parser, our fork of [psl](https://www.npmjs.com/package/psl).
+
+...and many other packages that these packages rely on.

api/package.json

@@ -0,0 +1,50 @@
+{
+    "name": "@imput/cobalt-api",
+    "description": "save what you love",
+    "version": "11.5",
+    "author": "imput",
+    "exports": "./src/cobalt.js",
+    "type": "module",
+    "engines": {
+        "node": ">=18"
+    },
+    "scripts": {
+        "start": "node src/cobalt",
+        "test": "node src/util/test",
+        "token:jwt": "node src/util/generate-jwt-secret"
+    },
+    "repository": {
+        "type": "git",
+        "url": "git+https://github.com/imputnet/cobalt.git"
+    },
+    "license": "AGPL-3.0",
+    "bugs": {
+        "url": "https://github.com/imputnet/cobalt/issues"
+    },
+    "homepage": "https://github.com/imputnet/cobalt#readme",
+    "dependencies": {
+        "@datastructures-js/priority-queue": "^6.3.1",
+        "@imput/psl": "^2.0.4",
+        "@imput/version-info": "workspace:^",
+        "content-disposition-header": "0.6.0",
+        "cors": "^2.8.5",
+        "dotenv": "^16.0.1",
+        "express": "^4.21.2",
+        "express-rate-limit": "^7.4.1",
+        "ffmpeg-static": "^5.1.0",
+        "hls-parser": "^0.10.7",
+        "ipaddr.js": "2.2.0",
+        "mime": "^4.0.4",
+        "nanoid": "^5.0.9",
+        "set-cookie-parser": "2.6.0",
+        "undici": "^6.21.3",
+        "url-pattern": "1.0.3",
+        "youtubei.js": "16.0.0",
+        "zod": "^3.23.8"
+    },
+    "optionalDependencies": {
+        "freebind": "^0.2.2",
+        "rate-limit-redis": "^4.2.0",
+        "redis": "^4.7.0"
+    }
+}

api/src/cobalt.js

@@ -0,0 +1,37 @@
+import "dotenv/config";
+
+import express from "express";
+import cluster from "node:cluster";
+
+import path from "path";
+import { fileURLToPath } from "url";
+
+import { env, isCluster } from "./config.js"
+import { Red } from "./misc/console-text.js";
+import { initCluster } from "./misc/cluster.js";
+import { setupEnvWatcher } from "./core/env.js";
+
+const app = express();
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename).slice(0, -4);
+
+app.disable("x-powered-by");
+
+if (env.apiURL) {
+    const { runAPI } = await import("./core/api.js");
+
+    if (isCluster) {
+       await initCluster();
+    }
+
+    if (env.envFile) {
+        setupEnvWatcher();
+    }
+
+    runAPI(express, app, __dirname, cluster.isPrimary);
+} else {
+    console.log(
+        Red("API_URL env variable is missing, cobalt api can't start.")
+    )
+}

api/src/config.js

@@ -0,0 +1,41 @@
+import { getVersion } from "@imput/version-info";
+import { loadEnvs, validateEnvs } from "./core/env.js";
+
+const version = await getVersion();
+
+const canonicalEnv = Object.freeze(structuredClone(process.env));
+const env = loadEnvs();
+
+const genericUserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36";
+const cobaltUserAgent = `cobalt/${version} (+https://github.com/imputnet/cobalt)`;
+
+export const setTunnelPort = (port) => env.tunnelPort = port;
+export const isCluster = env.instanceCount > 1;
+export const updateEnv = (newEnv) => {
+    const changes = [];
+
+    // tunnelPort is special and needs to get carried over here
+    newEnv.tunnelPort = env.tunnelPort;
+
+    for (const key in env) {
+        if (key === 'subscribe') {
+            continue;
+        }
+
+        if (String(env[key]) !== String(newEnv[key])) {
+            changes.push(key);
+        }
+        env[key] = newEnv[key];
+    }
+
+    return changes;
+}
+
+await validateEnvs(env);
+
+export {
+    env,
+    canonicalEnv,
+    genericUserAgent,
+    cobaltUserAgent,
+}

api/src/core/api.js

@@ -0,0 +1,388 @@
+import cors from "cors";
+import http from "node:http";
+import rateLimit from "express-rate-limit";
+import { setGlobalDispatcher, EnvHttpProxyAgent } from "undici";
+import { getCommit, getBranch, getRemote, getVersion } from "@imput/version-info";
+
+import jwt from "../security/jwt.js";
+import stream from "../stream/stream.js";
+import match from "../processing/match.js";
+
+import { env } from "../config.js";
+import { extract } from "../processing/url.js";
+import { Bright, Cyan } from "../misc/console-text.js";
+import { hashHmac } from "../security/secrets.js";
+import { createStore } from "../store/redis-ratelimit.js";
+import { randomizeCiphers } from "../misc/randomize-ciphers.js";
+import { verifyTurnstileToken } from "../security/turnstile.js";
+import { friendlyServiceName } from "../processing/service-alias.js";
+import { verifyStream } from "../stream/manage.js";
+import { createResponse, normalizeRequest, getIP } from "../processing/request.js";
+import { setupTunnelHandler } from "./itunnel.js";
+
+import * as APIKeys from "../security/api-keys.js";
+import * as Cookies from "../processing/cookie/manager.js";
+import * as YouTubeSession from "../processing/helpers/youtube-session.js";
+
+const git = {
+    branch: await getBranch(),
+    commit: await getCommit(),
+    remote: await getRemote(),
+}
+
+const version = await getVersion();
+
+const acceptRegex = /^application\/json(; charset=utf-8)?$/;
+
+const corsConfig = env.corsWildcard ? {} : {
+    origin: env.corsURL,
+    optionsSuccessStatus: 200
+}
+
+const fail = (res, code, context) => {
+    const { status, body } = createResponse("error", { code, context });
+    res.status(status).json(body);
+}
+
+export const runAPI = async (express, app, __dirname, isPrimary = true) => {
+    const startTime = new Date();
+    const startTimestamp = startTime.getTime();
+
+    const getServerInfo = () => {
+        return JSON.stringify({
+            cobalt: {
+                version: version,
+                url: env.apiURL,
+                startTime: `${startTimestamp}`,
+                turnstileSitekey: env.sessionEnabled ? env.turnstileSitekey : undefined,
+                services: [...env.enabledServices].map(e => {
+                    return friendlyServiceName(e);
+                }),
+            },
+            git,
+        });
+    }
+
+    const serverInfo = getServerInfo();
+
+    const handleRateExceeded = (_, res) => {
+        const { body } = createResponse("error", {
+            code: "error.api.rate_exceeded",
+            context: {
+                limit: env.rateLimitWindow
+            }
+        });
+        return res.status(429).json(body);
+    };
+
+    const keyGenerator = (req) => hashHmac(getIP(req), 'rate').toString('base64url');
+
+    const sessionLimiter = rateLimit({
+        windowMs: env.sessionRateLimitWindow * 1000,
+        limit: env.sessionRateLimit,
+        standardHeaders: 'draft-6',
+        legacyHeaders: false,
+        keyGenerator,
+        store: await createStore('session'),
+        handler: handleRateExceeded
+    });
+
+    const apiLimiter = rateLimit({
+        windowMs: env.rateLimitWindow * 1000,
+        limit: (req) => req.rateLimitMax || env.rateLimitMax,
+        standardHeaders: 'draft-6',
+        legacyHeaders: false,
+        keyGenerator: req => req.rateLimitKey || keyGenerator(req),
+        store: await createStore('api'),
+        handler: handleRateExceeded
+    });
+
+    const apiTunnelLimiter = rateLimit({
+        windowMs: env.tunnelRateLimitWindow * 1000,
+        limit: env.tunnelRateLimitMax,
+        standardHeaders: 'draft-6',
+        legacyHeaders: false,
+        keyGenerator: req => keyGenerator(req),
+        store: await createStore('tunnel'),
+        handler: (_, res) => {
+            return res.sendStatus(429);
+        }
+    });
+
+    app.set('trust proxy', ['loopback', 'uniquelocal']);
+
+    app.use('/', cors({
+        methods: ['GET', 'POST'],
+        exposedHeaders: [
+            'Ratelimit-Limit',
+            'Ratelimit-Policy',
+            'Ratelimit-Remaining',
+            'Ratelimit-Reset'
+        ],
+        ...corsConfig,
+    }));
+
+    app.post('/', (req, res, next) => {
+        if (!acceptRegex.test(req.header('Accept'))) {
+            return fail(res, "error.api.header.accept");
+        }
+        if (!acceptRegex.test(req.header('Content-Type'))) {
+            return fail(res, "error.api.header.content_type");
+        }
+        next();
+    });
+
+    app.post('/', (req, res, next) => {
+        if (!env.apiKeyURL) {
+            return next();
+        }
+
+        const { success, error } = APIKeys.validateAuthorization(req);
+        if (!success) {
+            // We call next() here if either if:
+            // a) we have user sessions enabled, meaning the request
+            //    will still need a Bearer token to not be rejected, or
+            // b) we do not require the user to be authenticated, and
+            //    so they can just make the request with the regular
+            //    rate limit configuration;
+            // otherwise, we reject the request.
+            if (
+                (env.sessionEnabled || !env.authRequired)
+                && ['missing', 'not_api_key'].includes(error)
+            ) {
+                return next();
+            }
+
+            return fail(res, `error.api.auth.key.${error}`);
+        }
+
+        req.authType = "key";
+        return next();
+    });
+
+    app.post('/', (req, res, next) => {
+        if (!env.sessionEnabled || req.rateLimitKey) {
+            return next();
+        }
+
+        try {
+            const authorization = req.header("Authorization");
+            if (!authorization) {
+                return fail(res, "error.api.auth.jwt.missing");
+            }
+
+            if (authorization.length >= 256) {
+                return fail(res, "error.api.auth.jwt.invalid");
+            }
+
+            const [ type, token, ...rest ] = authorization.split(" ");
+            if (!token || type.toLowerCase() !== 'bearer' || rest.length) {
+                return fail(res, "error.api.auth.jwt.invalid");
+            }
+
+            if (!jwt.verify(token, getIP(req, 32))) {
+                return fail(res, "error.api.auth.jwt.invalid");
+            }
+
+            req.rateLimitKey = hashHmac(token, 'rate');
+            req.authType = "session";
+        } catch {
+            return fail(res, "error.api.generic");
+        }
+        next();
+    });
+
+    app.post('/', apiLimiter);
+    app.use('/', express.json({ limit: 1024 }));
+
+    app.use('/', (err, _, res, next) => {
+        if (err) {
+            const { status, body } = createResponse("error", {
+                code: "error.api.invalid_body",
+            });
+            return res.status(status).json(body);
+        }
+
+        next();
+    });
+
+    app.post("/session", sessionLimiter, async (req, res) => {
+        if (!env.sessionEnabled) {
+            return fail(res, "error.api.auth.not_configured")
+        }
+
+        const turnstileResponse = req.header("cf-turnstile-response");
+
+        if (!turnstileResponse) {
+            return fail(res, "error.api.auth.turnstile.missing");
+        }
+
+        const turnstileResult = await verifyTurnstileToken(
+            turnstileResponse,
+            req.ip
+        );
+
+        if (!turnstileResult) {
+            return fail(res, "error.api.auth.turnstile.invalid");
+        }
+
+        try {
+            res.json(jwt.generate(getIP(req, 32)));
+        } catch {
+            return fail(res, "error.api.generic");
+        }
+    });
+
+    app.post('/', async (req, res) => {
+        const request = req.body;
+
+        if (!request.url) {
+            return fail(res, "error.api.link.missing");
+        }
+
+        const { success, data: normalizedRequest } = await normalizeRequest(request);
+        if (!success) {
+            return fail(res, "error.api.invalid_body");
+        }
+
+        const parsed = extract(
+            normalizedRequest.url,
+            APIKeys.getAllowedServices(req.rateLimitKey),
+        );
+
+        if (!parsed) {
+            return fail(res, "error.api.link.invalid");
+        }
+
+        if ("error" in parsed) {
+            let context;
+            if (parsed?.context) {
+                context = parsed.context;
+            }
+            return fail(res, `error.api.${parsed.error}`, context);
+        }
+
+        try {
+            const result = await match({
+                host: parsed.host,
+                patternMatch: parsed.patternMatch,
+                params: normalizedRequest,
+                authType: req.authType ?? "none",
+            });
+
+            res.status(result.status).json(result.body);
+        } catch {
+            fail(res, "error.api.generic");
+        }
+    });
+
+    app.use('/tunnel', cors({
+        methods: ['GET'],
+        exposedHeaders: [
+            'Estimated-Content-Length',
+            'Content-Disposition'
+        ],
+        ...corsConfig,
+    }));
+
+    app.get('/tunnel', apiTunnelLimiter, async (req, res) => {
+        const id = String(req.query.id);
+        const exp = String(req.query.exp);
+        const sig = String(req.query.sig);
+        const sec = String(req.query.sec);
+        const iv = String(req.query.iv);
+
+        const checkQueries = id && exp && sig && sec && iv;
+        const checkBaseLength = id.length === 21 && exp.length === 13;
+        const checkSafeLength = sig.length === 43 && sec.length === 43 && iv.length === 22;
+
+        if (!checkQueries || !checkBaseLength || !checkSafeLength) {
+            return res.status(400).end();
+        }
+
+        if (req.query.p) {
+            return res.status(200).end();
+        }
+
+        const streamInfo = await verifyStream(id, sig, exp, sec, iv);
+        if (!streamInfo?.service) {
+            return res.status(streamInfo.status).end();
+        }
+
+        if (streamInfo.type === 'proxy') {
+            streamInfo.range = req.headers['range'];
+        }
+
+        return stream(res, streamInfo);
+    });
+
+    app.get('/', (_, res) => {
+        res.type('json');
+        res.status(200).send(env.envFile ? getServerInfo() : serverInfo);
+    })
+
+    app.get('/favicon.ico', (req, res) => {
+        res.status(404).end();
+    })
+
+    app.get('/*', (req, res) => {
+        res.redirect('/');
+    })
+
+    // handle all express errors
+    app.use((_, __, res, ___) => {
+        return fail(res, "error.api.generic");
+    })
+
+    randomizeCiphers();
+    setInterval(randomizeCiphers, 1000 * 60 * 30); // shuffle ciphers every 30 minutes
+
+    env.subscribe(['externalProxy', 'httpProxyValues'], () => {
+        // TODO: remove env.externalProxy in a future version
+        const options = {};
+        if (env.externalProxy) {
+            options.httpProxy = env.externalProxy;
+        }
+
+        setGlobalDispatcher(
+            new EnvHttpProxyAgent(options)
+        );
+    });
+
+    http.createServer(app).listen({
+        port: env.apiPort,
+        host: env.listenAddress,
+        reusePort: env.instanceCount > 1 || undefined
+    }, () => {
+        if (isPrimary) {
+            console.log(`\n` +
+                Bright(Cyan("cobalt ")) + Bright("API ^ω^") + "\n" +
+
+                "~~~~~~\n" +
+                Bright("version: ") + version + "\n" +
+                Bright("commit: ") + git.commit + "\n" +
+                Bright("branch: ") + git.branch + "\n" +
+                Bright("remote: ") + git.remote + "\n" +
+                Bright("start time: ") + startTime.toUTCString() + "\n" +
+                "~~~~~~\n" +
+
+                Bright("url: ") + Bright(Cyan(env.apiURL)) + "\n" +
+                Bright("port: ") + env.apiPort + "\n"
+            );
+        }
+
+        if (env.apiKeyURL) {
+            APIKeys.setup(env.apiKeyURL);
+        }
+
+        if (env.cookiePath) {
+            Cookies.setup(env.cookiePath);
+        }
+
+        if (env.ytSessionServer) {
+            YouTubeSession.setup();
+        }
+    });
+
+    setupTunnelHandler();
+}

api/src/core/env.js

@@ -0,0 +1,289 @@
+import { Constants } from "youtubei.js";
+import { services } from "../processing/service-config.js";
+import { updateEnv, canonicalEnv, env as currentEnv } from "../config.js";
+
+import { FileWatcher } from "../misc/file-watcher.js";
+import { isURL } from "../misc/utils.js";
+import * as cluster from "../misc/cluster.js";
+import { Green, Yellow } from "../misc/console-text.js";
+
+const forceLocalProcessingOptions = ["never", "session", "always"];
+const youtubeHlsOptions = ["never", "key", "always"];
+
+const httpProxyVariables = ["NO_PROXY", "HTTP_PROXY", "HTTPS_PROXY"].flatMap(
+    k => [ k, k.toLowerCase() ]
+);
+
+const changeCallbacks = {};
+
+const onEnvChanged = (changes) => {
+    for (const key of changes) {
+        if (changeCallbacks[key]) {
+            changeCallbacks[key].map(fn => {
+                try { fn() } catch {}
+            });
+        }
+    }
+}
+
+const subscribe = (keys, fn) => {
+    keys = [keys].flat();
+
+    for (const key of keys) {
+        if (key in currentEnv && key !== 'subscribe') {
+            changeCallbacks[key] ??= [];
+            changeCallbacks[key].push(fn);
+            fn();
+        } else throw `invalid env key ${key}`;
+    }
+}
+
+export const loadEnvs = (env = process.env) => {
+    const allServices = new Set(Object.keys(services));
+    const disabledServices = env.DISABLED_SERVICES?.split(',') || [];
+    const enabledServices = new Set(Object.keys(services).filter(e => {
+        if (!disabledServices.includes(e)) {
+            return e;
+        }
+    }));
+
+    // we need to copy the proxy envs (HTTP_PROXY, HTTPS_PROXY)
+    // back into process.env, so that EnvHttpProxyAgent can pick
+    // them up later
+    for (const key of httpProxyVariables) {
+        const value = env[key] ?? canonicalEnv[key];
+        if (value !== undefined) {
+            process.env[key] = env[key];
+        } else {
+            delete process.env[key];
+        }
+    }
+
+    return {
+        apiURL: env.API_URL || '',
+        apiPort: env.API_PORT || 9000,
+        tunnelPort: env.API_PORT || 9000,
+
+        listenAddress: env.API_LISTEN_ADDRESS,
+        freebindCIDR: process.platform === 'linux' && env.FREEBIND_CIDR,
+
+        corsWildcard: env.CORS_WILDCARD !== '0',
+        corsURL: env.CORS_URL,
+
+        cookiePath: env.COOKIE_PATH,
+
+        rateLimitWindow: (env.RATELIMIT_WINDOW && parseInt(env.RATELIMIT_WINDOW)) || 60,
+        rateLimitMax: (env.RATELIMIT_MAX && parseInt(env.RATELIMIT_MAX)) || 20,
+
+        tunnelRateLimitWindow: (env.TUNNEL_RATELIMIT_WINDOW && parseInt(env.TUNNEL_RATELIMIT_WINDOW)) || 60,
+        tunnelRateLimitMax: (env.TUNNEL_RATELIMIT_MAX && parseInt(env.TUNNEL_RATELIMIT_MAX)) || 40,
+
+        sessionRateLimitWindow: (env.SESSION_RATELIMIT_WINDOW && parseInt(env.SESSION_RATELIMIT_WINDOW)) || 60,
+        sessionRateLimit:
+            // backwards compatibility with SESSION_RATELIMIT
+            // till next major due to an error in docs
+            (env.SESSION_RATELIMIT_MAX && parseInt(env.SESSION_RATELIMIT_MAX))
+            || (env.SESSION_RATELIMIT && parseInt(env.SESSION_RATELIMIT))
+            || 10,
+
+        durationLimit: (env.DURATION_LIMIT && parseInt(env.DURATION_LIMIT)) || 10800,
+        streamLifespan: (env.TUNNEL_LIFESPAN && parseInt(env.TUNNEL_LIFESPAN)) || 90,
+
+        processingPriority: process.platform !== 'win32'
+            && env.PROCESSING_PRIORITY
+            && parseInt(env.PROCESSING_PRIORITY),
+
+        externalProxy: env.API_EXTERNAL_PROXY,
+
+        // used only for comparing against old values when envs are being updated
+        httpProxyValues: httpProxyVariables.map(k => String(env[k])).join(''),
+
+        turnstileSitekey: env.TURNSTILE_SITEKEY,
+        turnstileSecret: env.TURNSTILE_SECRET,
+        jwtSecret: env.JWT_SECRET,
+        jwtLifetime: env.JWT_EXPIRY || 120,
+
+        sessionEnabled: env.TURNSTILE_SITEKEY
+                            && env.TURNSTILE_SECRET
+                            && env.JWT_SECRET,
+
+        apiKeyURL: env.API_KEY_URL && new URL(env.API_KEY_URL),
+        authRequired: env.API_AUTH_REQUIRED === '1',
+        redisURL: env.API_REDIS_URL,
+        instanceCount: (env.API_INSTANCE_COUNT && parseInt(env.API_INSTANCE_COUNT)) || 1,
+        keyReloadInterval: 900,
+
+        allServices,
+        enabledServices,
+
+        customInnertubeClient: env.CUSTOM_INNERTUBE_CLIENT,
+        ytSessionServer: env.YOUTUBE_SESSION_SERVER,
+        ytSessionReloadInterval: 300,
+        ytSessionInnertubeClient: env.YOUTUBE_SESSION_INNERTUBE_CLIENT,
+        ytAllowBetterAudio: env.YOUTUBE_ALLOW_BETTER_AUDIO !== "0",
+
+        // "never" | "session" | "always"
+        forceLocalProcessing: env.FORCE_LOCAL_PROCESSING ?? "never",
+
+        // "never" | "key" | "always"
+        enableDeprecatedYoutubeHls: env.ENABLE_DEPRECATED_YOUTUBE_HLS ?? "never",
+
+        envFile: env.API_ENV_FILE,
+        envRemoteReloadInterval: 300,
+
+        subscribe,
+    };
+}
+
+let loggedProxyWarning = false;
+
+export const validateEnvs = async (env) => {
+    if (env.sessionEnabled && env.jwtSecret.length < 16) {
+        throw new Error("JWT_SECRET env is too short (must be at least 16 characters long)");
+    }
+
+    if (env.instanceCount > 1 && !env.redisURL) {
+        throw new Error("API_REDIS_URL is required when API_INSTANCE_COUNT is >= 2");
+    } else if (env.instanceCount > 1 && !await cluster.supportsReusePort()) {
+        console.error('API_INSTANCE_COUNT is not supported in your environment. to use this env, your node.js');
+        console.error('version must be >= 23.1.0, and you must be running a recent enough version of linux');
+        console.error('(or other OS that supports it). for more info, see `reusePort` option on');
+        console.error('https://nodejs.org/api/net.html#serverlistenoptions-callback');
+        throw new Error('SO_REUSEPORT is not supported');
+    }
+
+    if (env.customInnertubeClient && !Constants.SUPPORTED_CLIENTS.includes(env.customInnertubeClient)) {
+        console.error("CUSTOM_INNERTUBE_CLIENT is invalid. Provided client is not supported.");
+        console.error(`Supported clients are: ${Constants.SUPPORTED_CLIENTS.join(', ')}\n`);
+        throw new Error("Invalid CUSTOM_INNERTUBE_CLIENT");
+    }
+
+    if (env.forceLocalProcessing && !forceLocalProcessingOptions.includes(env.forceLocalProcessing)) {
+        console.error("FORCE_LOCAL_PROCESSING is invalid.");
+        console.error(`Supported options are are: ${forceLocalProcessingOptions.join(', ')}\n`);
+        throw new Error("Invalid FORCE_LOCAL_PROCESSING");
+    }
+
+    if (env.enableDeprecatedYoutubeHls && !youtubeHlsOptions.includes(env.enableDeprecatedYoutubeHls)) {
+        console.error("ENABLE_DEPRECATED_YOUTUBE_HLS is invalid.");
+        console.error(`Supported options are are: ${youtubeHlsOptions.join(', ')}\n`);
+        throw new Error("Invalid ENABLE_DEPRECATED_YOUTUBE_HLS");
+    }
+
+    if (env.externalProxy && env.freebindCIDR) {
+        throw new Error('freebind is not available when external proxy is enabled')
+    }
+
+    if (env.externalProxy && !loggedProxyWarning) {
+        console.error('API_EXTERNAL_PROXY is deprecated and will be removed in a future release.');
+        console.error('Use HTTP_PROXY or HTTPS_PROXY instead.');
+        console.error('You can read more about the new proxy variables in docs/api-env-variables.md\n');
+
+        // prevent the warning from being printed on every env validation
+        loggedProxyWarning = true;
+    }
+
+    return env;
+}
+
+const reloadEnvs = async (contents) => {
+    const newEnvs = {};
+    const resolvedContents = await contents;
+
+    for (let line of resolvedContents.split('\n')) {
+        line = line.trim();
+        if (line === '') {
+            continue;
+        }
+
+        let [ key, value ] = line.split(/=(.+)?/);
+        if (key) {
+            if (value.match(/^['"]/) && value.match(/['"]$/)) {
+                value = JSON.parse(value);
+            }
+
+            newEnvs[key] = value || '';
+        }
+    }
+
+    const candidate = {
+        ...canonicalEnv,
+        ...newEnvs,
+    };
+
+    const parsed = await validateEnvs(
+        loadEnvs(candidate)
+    );
+
+    cluster.broadcast({ env_update: resolvedContents });
+    return updateEnv(parsed);
+}
+
+const wrapReload = (contents) => {
+    reloadEnvs(contents)
+    .then(changes => {
+        if (changes.length === 0) {
+            return;
+        }
+
+        onEnvChanged(changes);
+
+        console.log(`${Green('[✓]')} envs reloaded successfully!`);
+        for (const key of changes) {
+            const value = currentEnv[key];
+            const isSecret = key.toLowerCase().includes('apikey')
+                          || key.toLowerCase().includes('secret')
+                          || key === 'httpProxyValues';
+
+            if (!value) {
+                console.log(`    removed: ${key}`);
+            } else {
+                console.log(`    changed: ${key} -> ${isSecret ? '***' : value}`);
+            }
+        }
+    })
+    .catch((e) => {
+        console.error(`${Yellow('[!]')} Failed reloading environment variables at ${new Date().toISOString()}.`);
+        console.error('Error:', e);
+    });
+}
+
+let watcher;
+const setupWatcherFromFile = (path) => {
+    const load = () => wrapReload(watcher.read());
+
+    if (isURL(path)) {
+        watcher = FileWatcher.fromFileProtocol(path);
+    } else {
+        watcher = new FileWatcher({ path });
+    }
+
+    watcher.on('file-updated', load);
+    load();
+}
+
+const setupWatcherFromFetch = (url) => {
+    const load = () => wrapReload(fetch(url).then(r => r.text()));
+    setInterval(load, currentEnv.envRemoteReloadInterval);
+    load();
+}
+
+export const setupEnvWatcher = () => {
+    if (cluster.isPrimary) {
+        const envFile = currentEnv.envFile;
+        const isFile = !isURL(envFile)
+                       || new URL(envFile).protocol === 'file:';
+
+        if (isFile) {
+            setupWatcherFromFile(envFile);
+        } else {
+            setupWatcherFromFetch(envFile);
+        }
+    } else if (cluster.isWorker) {
+        process.on('message', (message) => {
+            if ('env_update' in message) {
+                reloadEnvs(message.env_update);
+            }
+        });
+    }
+}

api/src/core/itunnel.js

@@ -0,0 +1,61 @@
+import stream from "../stream/stream.js";
+import { getInternalTunnel } from "../stream/manage.js";
+import { setTunnelPort } from "../config.js";
+import { Green } from "../misc/console-text.js";
+import express from "express";
+
+const validateTunnel = (req, res) => {
+    if (!req.ip.endsWith('127.0.0.1')) {
+        res.sendStatus(403);
+        return;
+    }
+
+    if (String(req.query.id).length !== 21) {
+        res.sendStatus(400);
+        return;
+    }
+
+    const streamInfo = getInternalTunnel(req.query.id);
+    if (!streamInfo) {
+        res.sendStatus(404);
+        return;
+    }
+
+    return streamInfo;
+}
+
+const streamTunnel = (req, res) => {
+    const streamInfo = validateTunnel(req, res);
+    if (!streamInfo) {
+        return;
+    }
+
+    streamInfo.headers = new Map([
+        ...(streamInfo.headers || []),
+        ...Object.entries(req.headers)
+    ]);
+
+    return stream(res, { type: 'internal', data: streamInfo });
+}
+
+export const setupTunnelHandler = () => {
+    const tunnelHandler = express();
+
+    tunnelHandler.get('/itunnel', streamTunnel);
+
+    // fallback
+    tunnelHandler.use((_, res) => res.sendStatus(400));
+    // error handler
+    tunnelHandler.use((_, __, res, ____) => res.socket.end());
+
+
+    const server = tunnelHandler.listen({
+        port: 0,
+        host: '127.0.0.1',
+        exclusive: true
+    }, () => {
+        const { port } = server.address();
+        console.log(`${Green('[✓]')} internal tunnel handler running on 127.0.0.1:${port}`);
+        setTunnelPort(port);
+    });
+}

api/src/misc/cluster.js

@@ -0,0 +1,72 @@
+import cluster from "node:cluster";
+import net from "node:net";
+import { syncSecrets } from "../security/secrets.js";
+import { env, isCluster } from "../config.js";
+
+export { isPrimary, isWorker } from "node:cluster";
+
+export const supportsReusePort = async () => {
+    try {
+        await new Promise((resolve, reject) => {
+            const server = net.createServer().listen({ port: 0, reusePort: true });
+            server.on('listening', () => server.close(resolve));
+            server.on('error', (err) => (server.close(), reject(err)));
+        });
+
+        const [major, minor] = process.versions.node.split('.').map(Number);
+        return major > 23 || (major === 23 && minor >= 1);
+    } catch {
+        return false;
+    }
+}
+
+export const initCluster = async () => {
+    if (cluster.isPrimary) {
+        for (let i = 1; i < env.instanceCount; ++i) {
+            cluster.fork();
+        }
+    }
+
+    await syncSecrets();
+}
+
+export const broadcast = (message) => {
+    if (!isCluster || !cluster.isPrimary || !cluster.workers) {
+        return;
+    }
+
+    for (const worker of Object.values(cluster.workers)) {
+        worker.send(message);
+    }
+}
+
+export const send = (message) => {
+    if (!isCluster) {
+        return;
+    }
+
+    if (cluster.isPrimary) {
+        return broadcast(message);
+    } else {
+        return process.send(message);
+    }
+}
+
+export const waitFor = (key) => {
+    return new Promise(resolve => {
+        const listener = (message) => {
+            if (key in message) {
+                process.off('message', listener);
+                return resolve(message);
+            }
+        }
+
+        process.on('message', listener);
+    });
+}
+
+export const mainOnMessage = (cb) => {
+    for (const worker of Object.values(cluster.workers)) {
+        worker.on('message', cb);
+    }
+}

api/src/misc/console-text.js

@@ -0,0 +1,36 @@
+const ANSI = {
+    RESET: "\x1b[0m",
+    BRIGHT: "\x1b[1m",
+    RED: "\x1b[31m",
+    GREEN: "\x1b[32m",
+    CYAN: "\x1b[36m",
+    YELLOW: "\x1b[93m"
+}
+
+function wrap(color, text) {
+    if (!ANSI[color.toUpperCase()]) {
+        throw "invalid color";
+    }
+
+    return ANSI[color.toUpperCase()] + text + ANSI.RESET;
+}
+
+export function Bright(text) {
+    return wrap('bright', text);
+}
+
+export function Red(text) {
+    return wrap('red', text);
+}
+
+export function Green(text) {
+    return wrap('green', text);
+}
+
+export function Cyan(text) {
+    return wrap('cyan', text);
+}
+
+export function Yellow(text) {
+    return wrap('yellow', text);
+}

api/src/misc/crypto.js

@@ -1,15 +1,7 @@
-import { createHmac, createCipheriv, createDecipheriv, randomBytes } from "crypto";
+import { createCipheriv, createDecipheriv } from "crypto";
 
 const algorithm = "aes256";
 
-export function generateSalt() {
-    return randomBytes(64).toString('hex');
-}
-
-export function generateHmac(str, salt) {
-    return createHmac("sha256", salt).update(str).digest("base64url");
-}
-
 export function encryptStream(plaintext, iv, secret) {
     const buff = Buffer.from(JSON.stringify(plaintext));
     const key = Buffer.from(secret, "base64url");

api/src/misc/file-watcher.js

@@ -0,0 +1,43 @@
+import { EventEmitter } from 'node:events';
+import * as fs from 'node:fs/promises';
+
+export class FileWatcher extends EventEmitter {
+    #path;
+    #hasWatcher = false;
+    #lastChange = new Date().getTime();
+
+    constructor({ path, ...rest }) {
+        super(rest);
+        this.#path = path;
+    }
+
+    async #setupWatcher() {
+        if (this.#hasWatcher)
+            return;
+
+        this.#hasWatcher = true;
+        const watcher = fs.watch(this.#path);
+        for await (const _ of watcher) {
+            if (new Date() - this.#lastChange > 50) {
+                this.emit('file-updated');
+                this.#lastChange = new Date().getTime();
+            }
+        }
+    }
+
+    read() {
+        this.#setupWatcher();
+        return fs.readFile(this.#path, 'utf8');
+    }
+
+    static fromFileProtocol(url_) {
+        const url = new URL(url_);
+        if (url.protocol !== 'file:') {
+            return;
+        }
+
+        const pathname = url.pathname === '/' ? '' : url.pathname;
+        const file_path = decodeURIComponent(url.host + pathname);
+        return new this({ path: file_path });
+    }
+}

api/src/misc/language-codes.js

@@ -0,0 +1,54 @@
+// converted from this file https://www.loc.gov/standards/iso639-2/ISO-639-2_utf-8.txt
+const iso639_1to2 = {
+    'aa': 'aar', 'ab': 'abk', 'af': 'afr', 'ak': 'aka', 'sq': 'sqi',
+    'am': 'amh', 'ar': 'ara', 'an': 'arg', 'hy': 'hye', 'as': 'asm',
+    'av': 'ava', 'ae': 'ave', 'ay': 'aym', 'az': 'aze', 'ba': 'bak',
+    'bm': 'bam', 'eu': 'eus', 'be': 'bel', 'bn': 'ben', 'bi': 'bis',
+    'bs': 'bos', 'br': 'bre', 'bg': 'bul', 'my': 'mya', 'ca': 'cat',
+    'ch': 'cha', 'ce': 'che', 'zh': 'zho', 'cu': 'chu', 'cv': 'chv',
+    'kw': 'cor', 'co': 'cos', 'cr': 'cre', 'cs': 'ces', 'da': 'dan',
+    'dv': 'div', 'nl': 'nld', 'dz': 'dzo', 'en': 'eng', 'eo': 'epo',
+    'et': 'est', 'ee': 'ewe', 'fo': 'fao', 'fj': 'fij', 'fi': 'fin',
+    'fr': 'fra', 'fy': 'fry', 'ff': 'ful', 'ka': 'kat', 'de': 'deu',
+    'gd': 'gla', 'ga': 'gle', 'gl': 'glg', 'gv': 'glv', 'el': 'ell',
+    'gn': 'grn', 'gu': 'guj', 'ht': 'hat', 'ha': 'hau', 'he': 'heb',
+    'hz': 'her', 'hi': 'hin', 'ho': 'hmo', 'hr': 'hrv', 'hu': 'hun',
+    'ig': 'ibo', 'is': 'isl', 'io': 'ido', 'ii': 'iii', 'iu': 'iku',
+    'ie': 'ile', 'ia': 'ina', 'id': 'ind', 'ik': 'ipk', 'it': 'ita',
+    'jv': 'jav', 'ja': 'jpn', 'kl': 'kal', 'kn': 'kan', 'ks': 'kas',
+    'kr': 'kau', 'kk': 'kaz', 'km': 'khm', 'ki': 'kik', 'rw': 'kin',
+    'ky': 'kir', 'kv': 'kom', 'kg': 'kon', 'ko': 'kor', 'kj': 'kua',
+    'ku': 'kur', 'lo': 'lao', 'la': 'lat', 'lv': 'lav', 'li': 'lim',
+    'ln': 'lin', 'lt': 'lit', 'lb': 'ltz', 'lu': 'lub', 'lg': 'lug',
+    'mk': 'mkd', 'mh': 'mah', 'ml': 'mal', 'mi': 'mri', 'mr': 'mar',
+    'ms': 'msa', 'mg': 'mlg', 'mt': 'mlt', 'mn': 'mon', 'na': 'nau',
+    'nv': 'nav', 'nr': 'nbl', 'nd': 'nde', 'ng': 'ndo', 'ne': 'nep',
+    'nn': 'nno', 'nb': 'nob', 'no': 'nor', 'ny': 'nya', 'oc': 'oci',
+    'oj': 'oji', 'or': 'ori', 'om': 'orm', 'os': 'oss', 'pa': 'pan',
+    'fa': 'fas', 'pi': 'pli', 'pl': 'pol', 'pt': 'por', 'ps': 'pus',
+    'qu': 'que', 'rm': 'roh', 'ro': 'ron', 'rn': 'run', 'ru': 'rus',
+    'sg': 'sag', 'sa': 'san', 'si': 'sin', 'sk': 'slk', 'sl': 'slv',
+    'se': 'sme', 'sm': 'smo', 'sn': 'sna', 'sd': 'snd', 'so': 'som',
+    'st': 'sot', 'es': 'spa', 'sc': 'srd', 'sr': 'srp', 'ss': 'ssw',
+    'su': 'sun', 'sw': 'swa', 'sv': 'swe', 'ty': 'tah', 'ta': 'tam',
+    'tt': 'tat', 'te': 'tel', 'tg': 'tgk', 'tl': 'tgl', 'th': 'tha',
+    'bo': 'bod', 'ti': 'tir', 'to': 'ton', 'tn': 'tsn', 'ts': 'tso',
+    'tk': 'tuk', 'tr': 'tur', 'tw': 'twi', 'ug': 'uig', 'uk': 'ukr',
+    'ur': 'urd', 'uz': 'uzb', 've': 'ven', 'vi': 'vie', 'vo': 'vol',
+    'cy': 'cym', 'wa': 'wln', 'wo': 'wol', 'xh': 'xho', 'yi': 'yid',
+    'yo': 'yor', 'za': 'zha', 'zu': 'zul',
+}
+
+const iso639_2to1 = Object.fromEntries(
+    Object.entries(iso639_1to2).map(([k, v]) => [v, k])
+);
+
+const maps = {
+    2: iso639_1to2,
+    3: iso639_2to1,
+}
+
+export const convertLanguageCode = (code) => {
+    code = code?.split("-")[0]?.split("_")[0] || "";
+    return maps[code.length]?.[code.toLowerCase()] || null;
+}

api/src/misc/load-from-fs.js

@@ -0,0 +1,20 @@
+import * as fs from "fs";
+import { join, dirname } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const root = join(
+    dirname(fileURLToPath(import.meta.url)),
+    '../../'
+);
+
+export function loadFile(path) {
+    return fs.readFileSync(join(root, path), 'utf-8')
+}
+
+export function loadJSON(path) {
+    try {
+        return JSON.parse(loadFile(path))
+    } catch {
+        return false
+    }
+}

api/src/misc/run-test.js

@@ -1,10 +1,10 @@
-import { normalizeRequest } from "../modules/processing/request.js";
-import match from "./processing/match.js";
-import { extract } from "./processing/url.js";
+import { normalizeRequest } from "../processing/request.js";
+import match from "../processing/match.js";
+import { extract } from "../processing/url.js";
 
 export async function runTest(url, params, expect) {
-    const normalized = normalizeRequest({ url, ...params });
-    if (!normalized) {
+    const { success, data: normalized } = await normalizeRequest({ url, ...params });
+    if (!success) {
         throw "invalid request";
     }
 
@@ -13,14 +13,25 @@ export async function runTest(url, params, expect) {
         throw `invalid url: ${normalized.url}`;
     }
 
-    const result = await match(
-        parsed.host, parsed.patternMatch, "en", normalized
-    );
+    const result = await match({
+        host: parsed.host,
+        patternMatch: parsed.patternMatch,
+        params: normalized,
+    });
 
     let error = [];
     if (expect.status !== result.body.status) {
         const detail = `${expect.status} (expected) != ${result.body.status} (actual)`;
         error.push(`status mismatch: ${detail}`);
+
+        if (result.body.status === 'error') {
+            error.push(`error code: ${result.body?.error?.code}`);
+        }
+    }
+
+    if (expect.errorCode && expect.errorCode !== result.body?.error?.code) {
+        const detail = `${expect.errorCode} (expected) != ${result.body.error.code} (actual)`
+        error.push(`error mismatch: ${detail}`);
     }
 
     if (expect.code !== result.status) {
@@ -36,7 +47,7 @@ export async function runTest(url, params, expect) {
         throw error.join('\n');
     }
 
-    if (result.body.status === 'stream') {
+    if (result.body.status === 'tunnel') {
         // TODO: stream testing
     }
-}
+}

api/src/misc/utils.js

@@ -0,0 +1,79 @@
+import { request } from "undici";
+const redirectStatuses = new Set([301, 302, 303, 307, 308]);
+
+export async function getRedirectingURL(url, dispatcher, headers) {
+    const params = {
+        dispatcher,
+        method: 'HEAD',
+        headers,
+        redirect: 'manual'
+    };
+    const getParams = {
+        ...params,
+        method: 'GET',
+    };
+
+    const callback = (r) => {
+        if (redirectStatuses.has(r.statusCode) && r.headers['location']) {
+            return r.headers['location'];
+        }
+    }
+
+    /*
+        try request() with HEAD & GET,
+        then do the same with fetch
+        (fetch is required for shortened reddit links)
+    */
+
+    let location = await request(url, params)
+        .then(callback).catch(() => null);
+
+    location ??= await request(url, getParams)
+        .then(callback).catch(() => null);
+
+    location ??= await fetch(url, params)
+        .then(callback).catch(() => null);
+
+    location ??= await fetch(url, getParams)
+        .then(callback).catch(() => null);
+
+    return location;
+}
+
+export function merge(a, b) {
+    for (const k of Object.keys(b)) {
+        if (Array.isArray(b[k])) {
+            a[k] = [...(a[k] ?? []), ...b[k]];
+        } else if (typeof b[k] === 'object') {
+            a[k] = merge(a[k], b[k]);
+        } else {
+            a[k] = b[k];
+        }
+    }
+
+    return a;
+}
+
+export function splitFilenameExtension(filename) {
+    const parts = filename.split('.');
+    const ext = parts.pop();
+
+    if (!parts.length) {
+        return [ ext, "" ]
+    } else {
+        return [ parts.join('.'), ext ]
+    }
+}
+
+export function zip(a, b) {
+    return a.map((value, i) => [ value, b[i] ]);
+}
+
+export function isURL(input) {
+    try {
+        new URL(input);
+        return true;
+    } catch {
+        return false;
+    }
+}

api/src/processing/cookie/cookie.js

@@ -4,16 +4,24 @@ export default class Cookie {
     constructor(input) {
         assert(typeof input === 'object');
         this._values = {};
-        this.set(input)
+
+        for (const [ k, v ] of Object.entries(input))
+            this.set(k, v);
     }
-    set(values) {
-        Object.entries(values).forEach(
-            ([ key, value ]) => this._values[key] = value
-        )
+
+    set(key, value) {
+        const old = this._values[key];
+        if (old === value)
+            return false;
+
+        this._values[key] = value;
+        return true;
     }
+
     unset(keys) {
         for (const key of keys) delete this._values[key]
     }
+
     static fromString(str) {
         const obj = {};
 
@@ -25,12 +33,15 @@ export default class Cookie {
 
         return new Cookie(obj)
     }
+
     toString() {
         return Object.entries(this._values).map(([ name, value ]) => `${name}=${value}`).join('; ')
     }
+
     toJSON() {
         return this.toString()
     }
+
     values() {
         return Object.freeze({ ...this._values })
     }

api/src/processing/cookie/manager.js

@@ -0,0 +1,157 @@
+import Cookie from './cookie.js';
+
+import { readFile, writeFile } from 'fs/promises';
+import { Red, Green, Yellow } from '../../misc/console-text.js';
+import { parse as parseSetCookie, splitCookiesString } from 'set-cookie-parser';
+import * as cluster from '../../misc/cluster.js';
+import { isCluster } from '../../config.js';
+
+const WRITE_INTERVAL = 60000;
+const VALID_SERVICES = new Set([
+    'instagram',
+    'instagram_bearer',
+    'reddit',
+    'twitter',
+    'youtube',
+    'vimeo_bearer',
+]);
+
+const invalidCookies = {};
+let cookies = {}, dirty = false, intervalId;
+
+function writeChanges(cookiePath) {
+    if (!dirty) return;
+    dirty = false;
+
+    const cookieData = JSON.stringify({ ...cookies, ...invalidCookies }, null, 4);
+    writeFile(cookiePath, cookieData).catch((e) => {
+        console.warn(`${Yellow('[!]')} failed writing updated cookies to storage`);
+        console.warn(e);
+        clearInterval(intervalId);
+        intervalId = null;
+    })
+}
+
+const setupMain = async (cookiePath) => {
+    try {
+        cookies = await readFile(cookiePath, 'utf8');
+        cookies = JSON.parse(cookies);
+        for (const serviceName in cookies) {
+            if (!VALID_SERVICES.has(serviceName)) {
+                console.warn(`${Yellow('[!]')} ignoring unknown service in cookie file: ${serviceName}`);
+            } else if (!Array.isArray(cookies[serviceName])) {
+                console.warn(`${Yellow('[!]')} ${serviceName} in cookies file is not an array, ignoring it`);
+            } else if (cookies[serviceName].some(c => typeof c !== 'string')) {
+                console.warn(`${Yellow('[!]')} some cookie for ${serviceName} contains non-string value in cookies file`);
+            } else continue;
+
+            invalidCookies[serviceName] = cookies[serviceName];
+            delete cookies[serviceName];
+        }
+
+        if (!intervalId) {
+            intervalId = setInterval(() => writeChanges(cookiePath), WRITE_INTERVAL);
+        }
+
+        cluster.broadcast({ cookies });
+
+        console.log(`${Green('[✓]')} cookies loaded successfully!`);
+    } catch (e) {
+        console.error(`${Yellow('[!]')} failed to load cookies.`);
+        console.error('error:', e);
+    }
+}
+
+const setupWorker = async () => {
+    cookies = (await cluster.waitFor('cookies')).cookies;
+}
+
+export const loadFromFile = async (path) => {
+    if (cluster.isPrimary) {
+        await setupMain(path);
+    } else if (cluster.isWorker) {
+        await setupWorker();
+    }
+
+    dirty = false;
+}
+
+export const setup = async (path) => {
+    await loadFromFile(path);
+
+    if (isCluster) {
+        const messageHandler = (message) => {
+            if ('cookieUpdate' in message) {
+                const { cookieUpdate } = message;
+
+                if (cluster.isPrimary) {
+                    dirty = true;
+                    cluster.broadcast({ cookieUpdate });
+                }
+
+                const { service, idx, cookie } = cookieUpdate;
+                cookies[service][idx] = cookie;
+            }
+        }
+
+        if (cluster.isPrimary) {
+            cluster.mainOnMessage(messageHandler);
+        } else {
+            process.on('message', messageHandler);
+        }
+    }
+}
+
+export function getCookie(service) {
+    if (!VALID_SERVICES.has(service)) {
+        console.error(
+            `${Red('[!]')} ${service} not in allowed services list for cookies.`
+            + ' if adding a new cookie type, include it there.'
+        );
+        return;
+    }
+
+    if (!cookies[service] || !cookies[service].length) return;
+
+    const idx = Math.floor(Math.random() * cookies[service].length);
+
+    const cookie = cookies[service][idx];
+    if (typeof cookie === 'string') {
+        cookies[service][idx] = Cookie.fromString(cookie);
+    }
+
+    cookies[service][idx].meta = { service, idx };
+    return cookies[service][idx];
+}
+
+export function updateCookieValues(cookie, values) {
+    let changed = false;
+
+    for (const [ key, value ] of Object.entries(values)) {
+        changed = cookie.set(key, value) || changed;
+    }
+
+    if (changed && cookie.meta) {
+        dirty = true;
+        if (isCluster) {
+            const message = { cookieUpdate: { ...cookie.meta, cookie } };
+            cluster.send(message);
+        }
+    }
+
+    return changed;
+}
+
+export function updateCookie(cookie, headers) {
+    if (!cookie) return;
+
+    const parsed = parseSetCookie(
+        splitCookiesString(headers.get('set-cookie')),
+        { decodeValues: false }
+    ), values = {}
+
+    cookie.unset(parsed.filter(c => c.expires < new Date()).map(c => c.name));
+    parsed.filter(c => !c.expires || c.expires > new Date()).forEach(c => values[c.name] = c.value);
+
+    updateCookieValues(cookie, values);
+}

api/src/processing/create-filename.js

@@ -0,0 +1,85 @@
+// characters that are disallowed on windows:
+// https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions
+const characterMap = {
+    '<':  '＜',
+    '>':  '＞',
+    ':':  '：',
+    '"':  '＂',
+    '/':  '／',
+    '\\': '＼',
+    '|': '｜',
+    '?': '？',
+    '*': '＊'
+};
+
+export const sanitizeString = (string) => {
+    // remove any potential control characters the string might contain
+    string = string.replace(/[\u0000-\u001F\u007F-\u009F]/g, "");
+
+    for (const [ char, replacement ] of Object.entries(characterMap)) {
+        string = string.replaceAll(char, replacement);
+    }
+
+    return string;
+}
+
+export default (f, style, isAudioOnly, isAudioMuted) => {
+    let filename = '';
+
+    let infoBase = [f.service, f.id];
+    let classicTags = [...infoBase];
+    let basicTags = [];
+
+    let title = sanitizeString(f.title);
+
+    if (f.author) {
+        title += ` - ${sanitizeString(f.author)}`;
+    }
+
+    if (f.resolution) {
+        classicTags.push(f.resolution);
+    }
+
+    if (f.qualityLabel) {
+        basicTags.push(f.qualityLabel);
+    }
+
+    if (f.youtubeFormat) {
+        classicTags.push(f.youtubeFormat);
+        basicTags.push(f.youtubeFormat);
+    }
+
+    if (isAudioMuted) {
+        classicTags.push("mute");
+        basicTags.push("mute");
+    } else if (f.youtubeDubName) {
+        classicTags.push(f.youtubeDubName);
+        basicTags.push(f.youtubeDubName);
+    }
+
+    switch (style) {
+        default:
+        case "classic":
+            if (isAudioOnly) {
+                if (f.youtubeDubName) {
+                    infoBase.push(f.youtubeDubName);
+                }
+                return `${infoBase.join("_")}_audio`;
+            }
+            filename = classicTags.join("_");
+            break;
+        case "basic":
+            if (isAudioOnly) return title;
+            filename = `${title} (${basicTags.join(", ")})`;
+            break;
+        case "pretty":
+            if (isAudioOnly) return `${title} (${infoBase[0]})`;
+            filename = `${title} (${[...basicTags, infoBase[0]].join(", ")})`;
+            break;
+        case "nerdy":
+            if (isAudioOnly) return `${title} (${infoBase.join(", ")})`;
+            filename = `${title} (${basicTags.concat(infoBase).join(", ")})`;
+            break;
+    }
+    return `${filename}.${f.extension}`;
+}

api/src/processing/helpers/youtube-session.js

@@ -0,0 +1,85 @@
+import * as cluster from "../../misc/cluster.js";
+
+import { Agent } from "undici";
+import { env } from "../../config.js";
+import { Green, Yellow } from "../../misc/console-text.js";
+
+const defaultAgent = new Agent();
+
+let session;
+
+const validateSession = (sessionResponse) => {
+    sessionResponse.visitor_data ??= sessionResponse.contentBinding;
+    sessionResponse.potoken ??= sessionResponse.poToken;
+    sessionResponse.updated ??= new Date().getTime();
+
+    if (!sessionResponse.potoken) {
+        throw "no poToken in session response";
+    }
+
+    if (!sessionResponse.visitor_data) {
+        throw "no visitor_data in session response";
+    }
+
+    if (!sessionResponse.updated) {
+        throw "no last update timestamp in session response";
+    }
+
+    // https://github.com/iv-org/youtube-trusted-session-generator/blob/c2dfe3f/potoken_generator/main.py#L25
+    if (sessionResponse.potoken.length < 160) {
+        console.error(`${Yellow('[!]')} poToken is too short and might not work (${new Date().toISOString()})`);
+    }
+}
+
+const updateSession = (newSession) => {
+    session = newSession;
+}
+
+const loadSession = async () => {
+    const sessionServerUrl = new URL(env.ytSessionServer);
+    sessionServerUrl.pathname = "/get_pot";
+
+    const newSession = await fetch(
+        sessionServerUrl,
+        { method: 'POST', dispatcher: defaultAgent }
+    ).then(a => a.json());
+
+    validateSession(newSession);
+
+    if (!session || session.updated < newSession?.updated) {
+        cluster.broadcast({ youtube_session: newSession });
+        updateSession(newSession);
+    }
+}
+
+const wrapLoad = (initial = false) => {
+    loadSession()
+    .then(() => {
+        if (initial) {
+            console.log(`${Green('[✓]')} poToken & visitor_data loaded successfully!`);
+        }
+    })
+    .catch((e) => {
+        console.error(`${Yellow('[!]')} Failed loading poToken & visitor_data at ${new Date().toISOString()}.`);
+        console.error('Error:', e);
+    })
+}
+
+export const getYouTubeSession = () => {
+    return session;
+}
+
+export const setup = () => {
+    if (cluster.isPrimary) {
+        wrapLoad(true);
+        if (env.ytSessionReloadInterval > 0) {
+            setInterval(wrapLoad, env.ytSessionReloadInterval * 1000);
+        }
+    } else if (cluster.isWorker) {
+        process.on('message', (message) => {
+            if ('youtube_session' in message) {
+                updateSession(message.youtube_session);
+            }
+        });
+    }
+}

api/src/processing/match-action.js

@@ -0,0 +1,283 @@
+import createFilename from "./create-filename.js";
+
+import { createResponse } from "./request.js";
+import { audioIgnore } from "./service-config.js";
+import { createStream } from "../stream/manage.js";
+import { splitFilenameExtension } from "../misc/utils.js";
+import { convertLanguageCode } from "../misc/language-codes.js";
+
+const extraProcessingTypes = new Set(["merge", "remux", "mute", "audio", "gif"]);
+
+export default function({
+    r,
+    host,
+    audioFormat,
+    isAudioOnly,
+    isAudioMuted,
+    disableMetadata,
+    filenameStyle,
+    convertGif,
+    requestIP,
+    audioBitrate,
+    alwaysProxy,
+    localProcessing,
+}) {
+    let action,
+        responseType = "tunnel",
+        defaultParams = {
+            url: r.urls,
+            headers: r.headers,
+            service: host,
+            filename: r.filenameAttributes ?
+                    createFilename(r.filenameAttributes, filenameStyle, isAudioOnly, isAudioMuted) : r.filename,
+            fileMetadata: !disableMetadata ? r.fileMetadata : false,
+            requestIP,
+            originalRequest: r.originalRequest,
+            subtitles: r.subtitles,
+            cover: !disableMetadata ? r.cover : false,
+            cropCover: !disableMetadata ? r.cropCover : false,
+        },
+        params = {};
+
+    if (r.isPhoto) action = "photo";
+    else if (r.picker) action = "picker"
+    else if (r.isGif && convertGif) action = "gif";
+    else if (isAudioOnly) action = "audio";
+    else if (isAudioMuted) action = "muteVideo";
+    else if (r.isHLS) action = "hls";
+    else action = "video";
+
+    if (action === "picker" || action === "audio") {
+        if (!r.filenameAttributes) defaultParams.filename = r.audioFilename;
+        defaultParams.audioFormat = audioFormat;
+    }
+
+    if (action === "muteVideo" && isAudioMuted && !r.filenameAttributes) {
+        const [ name, ext ] = splitFilenameExtension(r.filename);
+        defaultParams.filename = `${name}_mute.${ext}`;
+    } else if (action === "gif") {
+        const [ name ] = splitFilenameExtension(r.filename);
+        defaultParams.filename = `${name}.gif`;
+    }
+
+    switch (action) {
+        default:
+            return createResponse("error", {
+                code: "error.api.fetch.empty"
+            });
+
+        case "photo":
+            params = { type: "proxy" };
+            break;
+
+        case "gif":
+            params = { type: "gif" };
+            break;
+
+        case "hls":
+            params = {
+                type: Array.isArray(r.urls) ? "merge" : "remux",
+                isHLS: true,
+            }
+            break;
+
+        case "muteVideo":
+            let muteType = "mute";
+            if (Array.isArray(r.urls) && !r.isHLS) {
+                muteType = "proxy";
+            }
+            params = {
+                type: muteType,
+                url: Array.isArray(r.urls) ? r.urls[0] : r.urls,
+                isHLS: r.isHLS
+            }
+            if (host === "reddit" && r.typeId === "redirect") {
+                responseType = "redirect";
+            }
+            break;
+
+        case "picker":
+            responseType = "picker";
+            switch (host) {
+                case "instagram":
+                case "twitter":
+                case "snapchat":
+                case "bsky":
+                case "xiaohongshu":
+                    params = { picker: r.picker };
+                    break;
+
+                case "tiktok":
+                    let audioStreamType = "audio";
+                    if (r.bestAudio === "mp3" && audioFormat === "best") {
+                        audioFormat = "mp3";
+                        audioStreamType = "proxy"
+                    }
+                    params = {
+                        picker: r.picker,
+                        url: createStream({
+                            service: "tiktok",
+                            type: audioStreamType,
+                            url: r.urls,
+                            headers: r.headers,
+                            filename: `${r.audioFilename}.${audioFormat}`,
+                            isAudioOnly: true,
+                            audioFormat,
+                            audioBitrate
+                        })
+                    }
+                    break;
+            }
+            break;
+
+        case "video":
+            switch (host) {
+                case "bilibili":
+                    params = { type: "merge" };
+                    break;
+
+                case "youtube":
+                    params = { type: r.type };
+                    break;
+
+                case "reddit":
+                    responseType = r.typeId;
+                    params = { type: r.type };
+                    break;
+
+                case "vimeo":
+                    if (Array.isArray(r.urls)) {
+                        params = { type: "merge" };
+                    } else if (r.subtitles) {
+                        params = { type: "remux" };
+                    } else {
+                        responseType = "redirect";
+                    }
+                    break;
+
+                case "twitter":
+                    if (r.type === "remux") {
+                        params = { type: r.type };
+                    } else {
+                        responseType = "redirect";
+                    }
+                    break;
+
+                case "loom":
+                    if (r.subtitles) {
+                        params = { type: "remux" };
+                    } else {
+                        responseType = "redirect";
+                    }
+                    break;
+
+                case "vk":
+                case "tiktok":
+                    params = {
+                        type: r.subtitles ? "remux" : "proxy"
+                    };
+                    break;
+
+                case "ok":
+                case "xiaohongshu":
+                case "newgrounds":
+                    params = { type: "proxy" };
+                    break;
+
+                case "facebook":
+                case "instagram":
+                case "tumblr":
+                case "pinterest":
+                case "streamable":
+                case "snapchat":
+                case "twitch":
+                    responseType = "redirect";
+                    break;
+            }
+            break;
+
+        case "audio":
+            if (audioIgnore.has(host) || (host === "reddit" && r.typeId === "redirect")) {
+                return createResponse("error", {
+                    code: "error.api.service.audio_not_supported"
+                })
+            }
+
+            let processType = "audio";
+            let copy = false;
+
+            if (audioFormat === "best") {
+                const serviceBestAudio = r.bestAudio;
+
+                if (serviceBestAudio) {
+                    audioFormat = serviceBestAudio;
+                    processType = "proxy";
+
+                    if (host === "soundcloud") {
+                        processType = "audio";
+                        copy = true;
+                    }
+                } else {
+                    audioFormat = "m4a";
+                    copy = true;
+                }
+            }
+
+            if (r.isHLS || host === "vimeo") {
+                copy = false;
+                processType = "audio";
+            }
+
+            params = {
+                type: processType,
+                url: Array.isArray(r.urls) ? r.urls[1] : r.urls,
+
+                audioBitrate,
+                audioCopy: copy,
+                audioFormat,
+
+                isHLS: r.isHLS,
+            }
+            break;
+    }
+
+    if (defaultParams.filename && (action === "picker" || action === "audio")) {
+        defaultParams.filename += `.${audioFormat}`;
+    }
+
+    // alwaysProxy is set to true in match.js if localProcessing is forced
+    if (alwaysProxy && responseType === "redirect") {
+        responseType = "tunnel";
+        params.type = "proxy";
+    }
+
+    // TODO: add support for HLS
+    // (very painful)
+    if (!params.isHLS && responseType !== "picker") {
+        const isPreferredWithExtra =
+            localProcessing === "preferred" && extraProcessingTypes.has(params.type);
+
+        if (localProcessing === "forced" || isPreferredWithExtra) {
+            responseType = "local-processing";
+        }
+    }
+
+    // extractors usually return ISO 639-1 language codes,
+    // but video players expect ISO 639-2, so we convert them here
+    const sublanguage = defaultParams.fileMetadata?.sublanguage;
+    if (sublanguage && sublanguage.length !== 3) {
+        const code = convertLanguageCode(sublanguage);
+        if (code) {
+            defaultParams.fileMetadata.sublanguage = code;
+        } else {
+            // if a language code couldn't be converted,
+            // then we don't want it at all
+            delete defaultParams.fileMetadata.sublanguage;
+        }
+    }
+
+    return createResponse(
+        responseType,
+        { ...defaultParams, ...params }
+    );
+}

api/src/processing/match.js

@@ -0,0 +1,353 @@
+import { strict as assert } from "node:assert";
+
+import { env } from "../config.js";
+import { createResponse } from "../processing/request.js";
+
+import { testers } from "./service-patterns.js";
+import matchAction from "./match-action.js";
+
+import { friendlyServiceName } from "./service-alias.js";
+
+import bilibili from "./services/bilibili.js";
+import reddit from "./services/reddit.js";
+import twitter from "./services/twitter.js";
+import youtube from "./services/youtube.js";
+import vk from "./services/vk.js";
+import ok from "./services/ok.js";
+import tiktok from "./services/tiktok.js";
+import tumblr from "./services/tumblr.js";
+import vimeo from "./services/vimeo.js";
+import soundcloud from "./services/soundcloud.js";
+import instagram from "./services/instagram.js";
+import pinterest from "./services/pinterest.js";
+import streamable from "./services/streamable.js";
+import twitch from "./services/twitch.js";
+import rutube from "./services/rutube.js";
+import dailymotion from "./services/dailymotion.js";
+import snapchat from "./services/snapchat.js";
+import loom from "./services/loom.js";
+import facebook from "./services/facebook.js";
+import bluesky from "./services/bluesky.js";
+import xiaohongshu from "./services/xiaohongshu.js";
+import newgrounds from "./services/newgrounds.js";
+
+let freebind;
+
+export default async function({ host, patternMatch, params, authType }) {
+    const { url } = params;
+    assert(url instanceof URL);
+    let dispatcher, requestIP;
+
+    if (env.freebindCIDR) {
+        if (!freebind) {
+            freebind = await import('freebind');
+        }
+
+        requestIP = freebind.ip.random(env.freebindCIDR);
+        dispatcher = freebind.dispatcherFromIP(requestIP, { strict: false });
+    }
+
+    try {
+        let r,
+            isAudioOnly = params.downloadMode === "audio",
+            isAudioMuted = params.downloadMode === "mute";
+
+        if (!testers[host]) {
+            return createResponse("error", {
+                code: "error.api.service.unsupported"
+            });
+        }
+        if (!(testers[host](patternMatch))) {
+            return createResponse("error", {
+                code: "error.api.link.unsupported",
+                context: {
+                    service: friendlyServiceName(host),
+                }
+            });
+        }
+
+        // youtubeHLS will be fully removed in the future
+        let youtubeHLS = params.youtubeHLS;
+        const hlsEnv = env.enableDeprecatedYoutubeHls;
+
+        if (hlsEnv === "never" || (hlsEnv === "key" && authType !== "key")) {
+            youtubeHLS = false;
+        }
+
+        const subtitleLang =
+            params.subtitleLang !== "none" ? params.subtitleLang : undefined;
+
+        switch (host) {
+            case "twitter":
+                r = await twitter({
+                    id: patternMatch.id,
+                    index: patternMatch.index - 1,
+                    toGif: !!params.convertGif,
+                    alwaysProxy: params.alwaysProxy,
+                    dispatcher,
+                    subtitleLang
+                });
+                break;
+
+            case "vk":
+                r = await vk({
+                    ownerId: patternMatch.ownerId,
+                    videoId: patternMatch.videoId,
+                    accessKey: patternMatch.accessKey,
+                    quality: params.videoQuality,
+                    subtitleLang,
+                });
+                break;
+
+            case "ok":
+                r = await ok({
+                    id: patternMatch.id,
+                    quality: params.videoQuality
+                });
+                break;
+
+            case "bilibili":
+                r = await bilibili(patternMatch);
+                break;
+
+            case "youtube":
+                let fetchInfo = {
+                    dispatcher,
+                    id: patternMatch.id.slice(0, 11),
+                    quality: params.videoQuality,
+                    codec: params.youtubeVideoCodec,
+                    container: params.youtubeVideoContainer,
+                    isAudioOnly,
+                    isAudioMuted,
+                    dubLang: params.youtubeDubLang,
+                    youtubeHLS,
+                    subtitleLang,
+                }
+
+                if (url.hostname === "music.youtube.com" || isAudioOnly) {
+                    fetchInfo.quality = "1080";
+                    fetchInfo.codec = "vp9";
+                    fetchInfo.isAudioOnly = true;
+                    fetchInfo.isAudioMuted = false;
+
+                    if (env.ytAllowBetterAudio && params.youtubeBetterAudio) {
+                        fetchInfo.quality = "max";
+                    }
+                }
+
+                r = await youtube(fetchInfo);
+                break;
+
+            case "reddit":
+                r = await reddit({
+                    ...patternMatch,
+                    dispatcher,
+                });
+                break;
+
+            case "tiktok":
+                r = await tiktok({
+                    postId: patternMatch.postId,
+                    shortLink: patternMatch.shortLink,
+                    fullAudio: params.tiktokFullAudio,
+                    isAudioOnly,
+                    h265: params.allowH265,
+                    alwaysProxy: params.alwaysProxy,
+                    subtitleLang,
+                });
+                break;
+
+            case "tumblr":
+                r = await tumblr({
+                    id: patternMatch.id,
+                    user: patternMatch.user,
+                    url
+                });
+                break;
+
+            case "vimeo":
+                r = await vimeo({
+                    id: patternMatch.id.slice(0, 11),
+                    password: patternMatch.password,
+                    quality: params.videoQuality,
+                    isAudioOnly,
+                    subtitleLang,
+                });
+                break;
+
+            case "soundcloud":
+                isAudioOnly = true;
+                isAudioMuted = false;
+                r = await soundcloud({
+                    ...patternMatch,
+                    format: params.audioFormat,
+                });
+                break;
+
+            case "instagram":
+                r = await instagram({
+                    ...patternMatch,
+                    quality: params.videoQuality,
+                    alwaysProxy: params.alwaysProxy,
+                    dispatcher
+                })
+                break;
+
+            case "pinterest":
+                r = await pinterest({
+                    id: patternMatch.id,
+                    shortLink: patternMatch.shortLink || false
+                });
+                break;
+
+            case "streamable":
+                r = await streamable({
+                    id: patternMatch.id,
+                    quality: params.videoQuality,
+                    isAudioOnly,
+                });
+                break;
+
+            case "twitch":
+                r = await twitch({
+                    clipId: patternMatch.clip || false,
+                    quality: params.videoQuality,
+                    isAudioOnly,
+                });
+                break;
+
+            case "rutube":
+                r = await rutube({
+                    id: patternMatch.id,
+                    yappyId: patternMatch.yappyId,
+                    key: patternMatch.key,
+                    quality: params.videoQuality,
+                    isAudioOnly,
+                    subtitleLang,
+                });
+                break;
+
+            case "dailymotion":
+                r = await dailymotion(patternMatch);
+                break;
+
+            case "snapchat":
+                r = await snapchat({
+                    ...patternMatch,
+                    alwaysProxy: params.alwaysProxy,
+                });
+                break;
+
+            case "loom":
+                r = await loom({
+                    id: patternMatch.id,
+                    subtitleLang,
+                });
+                break;
+
+            case "facebook":
+                r = await facebook({
+                    ...patternMatch,
+                    dispatcher
+                });
+                break;
+
+            case "bsky":
+                r = await bluesky({
+                    ...patternMatch,
+                    alwaysProxy: params.alwaysProxy,
+                    dispatcher
+                });
+                break;
+
+            case "xiaohongshu":
+                r = await xiaohongshu({
+                    ...patternMatch,
+                    h265: params.allowH265,
+                    isAudioOnly,
+                    dispatcher,
+                });
+                break;
+
+            case "newgrounds":
+                r = await newgrounds({
+                    ...patternMatch,
+                    quality: params.videoQuality,
+                });
+                break;
+
+            default:
+                return createResponse("error", {
+                    code: "error.api.service.unsupported"
+                });
+        }
+
+        if (r.isAudioOnly) {
+            isAudioOnly = true;
+            isAudioMuted = false;
+        }
+
+        if (r.error && r.critical) {
+            return createResponse("critical", {
+                code: `error.api.${r.error}`,
+            })
+        }
+
+        if (r.error) {
+            let context;
+            switch(r.error) {
+                case "content.too_long":
+                    context = {
+                        limit: parseFloat((env.durationLimit / 60).toFixed(2)),
+                    }
+                    break;
+
+                case "fetch.fail":
+                case "fetch.rate":
+                case "fetch.critical":
+                case "link.unsupported":
+                case "content.video.unavailable":
+                    context = {
+                        service: friendlyServiceName(host),
+                    }
+                    break;
+            }
+
+            return createResponse("error", {
+                code: `error.api.${r.error}`,
+                context,
+            })
+        }
+
+        let localProcessing = params.localProcessing;
+        const lpEnv = env.forceLocalProcessing;
+        const shouldForceLocal = lpEnv === "always" || (lpEnv === "session" && authType === "session");
+        const localDisabled = (!localProcessing || localProcessing === "disabled");
+
+        if (shouldForceLocal && localDisabled) {
+            localProcessing = "preferred";
+        }
+
+        return matchAction({
+            r,
+            host,
+            audioFormat: params.audioFormat,
+            isAudioOnly,
+            isAudioMuted,
+            disableMetadata: params.disableMetadata,
+            filenameStyle: params.filenameStyle,
+            convertGif: params.convertGif,
+            requestIP,
+            audioBitrate: params.audioBitrate,
+            alwaysProxy: params.alwaysProxy || localProcessing === "forced",
+            localProcessing,
+        })
+    } catch {
+        return createResponse("error", {
+            code: "error.api.fetch.critical",
+            context: {
+                service: friendlyServiceName(host),
+            }
+        })
+    }
+}

api/src/processing/request.js

@@ -0,0 +1,140 @@
+import mime from "mime";
+import ipaddr from "ipaddr.js";
+
+import { apiSchema } from "./schema.js";
+import { createProxyTunnels, createStream } from "../stream/manage.js";
+
+export function createResponse(responseType, responseData) {
+    const internalError = (code) => {
+        return {
+            status: 500,
+            body: {
+                status: "error",
+                error: {
+                    code: code || "error.api.fetch.critical.core",
+                },
+                critical: true
+            }
+        }
+    }
+
+    try {
+        let status = 200,
+            response = {};
+
+        if (responseType === "error") {
+            status = 400;
+        }
+
+        switch (responseType) {
+            case "error":
+                response = {
+                    error: {
+                        code: responseData?.code,
+                        context: responseData?.context,
+                    }
+                }
+                break;
+
+            case "redirect":
+                response = {
+                    url: responseData?.url,
+                    filename: responseData?.filename
+                }
+                break;
+
+            case "tunnel":
+                response = {
+                    url: createStream(responseData),
+                    filename: responseData?.filename
+                }
+                break;
+
+            case "local-processing":
+                response = {
+                    type: responseData?.type,
+                    service: responseData?.service,
+                    tunnel: createProxyTunnels(responseData),
+
+                    output: {
+                        type: mime.getType(responseData?.filename) || undefined,
+                        filename: responseData?.filename,
+                        metadata: responseData?.fileMetadata || undefined,
+                        subtitles: !!responseData?.subtitles || undefined,
+                    },
+
+                    audio: {
+                        copy: responseData?.audioCopy,
+                        format: responseData?.audioFormat,
+                        bitrate: responseData?.audioBitrate,
+                        cover: !!responseData?.cover || undefined,
+                        cropCover: !!responseData?.cropCover || undefined,
+                    },
+
+                    isHLS: responseData?.isHLS,
+                }
+
+                if (!response.audio.format) {
+                    if (response.type === "audio") {
+                        // audio response without a format is invalid
+                        return internalError();
+                    }
+                    delete response.audio;
+                }
+
+                if (!response.output.type || !response.output.filename) {
+                    // response without a type or filename is invalid
+                    return internalError();
+                }
+                break;
+
+            case "picker":
+                response = {
+                    picker: responseData?.picker,
+                    audio: responseData?.url,
+                    audioFilename: responseData?.filename
+                }
+                break;
+
+            case "critical":
+                return internalError(responseData?.code);
+
+            default:
+                throw "unreachable"
+        }
+
+        return {
+            status,
+            body: {
+                status: responseType,
+                ...response
+            }
+        }
+    } catch {
+        return internalError();
+    }
+}
+
+export function normalizeRequest(request) {
+    // TODO: remove after backwards compatibility period
+    if ("localProcessing" in request && typeof request.localProcessing === "boolean") {
+        request.localProcessing = request.localProcessing ? "preferred" : "disabled";
+    }
+
+    return apiSchema.safeParseAsync(request).catch(() => (
+        { success: false }
+    ));
+}
+
+export function getIP(req, prefix = 56) {
+    const strippedIP = req.ip.replace(/^::ffff:/, '');
+    const ip = ipaddr.parse(strippedIP);
+    if (ip.kind() === 'ipv4') {
+        return strippedIP;
+    }
+
+    const v6Bytes = ip.toByteArray();
+          v6Bytes.fill(0, prefix / 8);
+
+    return ipaddr.fromByteArray(v6Bytes).toString();
+}

api/src/processing/schema.js

@@ -0,0 +1,64 @@
+import { z } from "zod";
+import { normalizeURL } from "./url.js";
+
+export const apiSchema = z.object({
+    url: z.string()
+          .min(1)
+          .transform(url => normalizeURL(url)),
+
+    audioBitrate: z.enum(
+        ["320", "256", "128", "96", "64", "8"]
+    ).default("128"),
+
+    audioFormat: z.enum(
+        ["best", "mp3", "ogg", "wav", "opus"]
+    ).default("mp3"),
+
+    downloadMode: z.enum(
+        ["auto", "audio", "mute"]
+    ).default("auto"),
+
+    filenameStyle: z.enum(
+        ["classic", "pretty", "basic", "nerdy"]
+    ).default("basic"),
+
+    youtubeVideoCodec: z.enum(
+        ["h264", "av1", "vp9"]
+    ).default("h264"),
+
+    youtubeVideoContainer: z.enum(
+        ["auto", "mp4", "webm", "mkv"]
+    ).default("auto"),
+
+    videoQuality: z.enum(
+        ["max", "4320", "2160", "1440", "1080", "720", "480", "360", "240", "144"]
+    ).default("1080"),
+
+    localProcessing: z.enum(
+        ["disabled", "preferred", "forced"]
+    ).default("disabled"),
+
+    youtubeDubLang: z.string()
+                     .min(2)
+                     .max(8)
+                     .regex(/^[0-9a-zA-Z\-]+$/)
+                     .optional(),
+
+    subtitleLang: z.string()
+                     .min(2)
+                     .max(8)
+                     .regex(/^[0-9a-zA-Z\-]+$/)
+                     .optional(),
+
+    disableMetadata: z.boolean().default(false),
+
+    allowH265: z.boolean().default(false),
+    convertGif: z.boolean().default(true),
+    tiktokFullAudio: z.boolean().default(false),
+
+    alwaysProxy: z.boolean().default(false),
+
+    youtubeHLS: z.boolean().default(false),
+    youtubeBetterAudio: z.boolean().default(false),
+})
+.strict();

api/src/processing/service-alias.js

@@ -0,0 +1,11 @@
+const friendlyNames = {
+    bsky: "bluesky",
+    twitch: "twitch clips"
+}
+
+export const friendlyServiceName = (service) => {
+    if (service in friendlyNames) {
+        return friendlyNames[service];
+    }
+    return service;
+}

api/src/processing/service-config.js

@@ -0,0 +1,233 @@
+import UrlPattern from "url-pattern";
+
+export const audioIgnore = new Set(["vk", "ok", "loom"]);
+export const hlsExceptions = new Set(["dailymotion", "vimeo", "rutube", "bsky", "youtube"]);
+
+export const services = {
+    bilibili: {
+        patterns: [
+            "video/:comId",
+            "video/:comId?p=:partId",
+            "_shortLink/:comShortLink",
+            "_tv/:lang/video/:tvId",
+            "_tv/video/:tvId"
+        ],
+        subdomains: ["m"],
+    },
+    bsky: {
+        patterns: [
+            "profile/:user/post/:post"
+        ],
+        tld: "app",
+    },
+    dailymotion: {
+        patterns: ["video/:id"],
+    },
+    facebook: {
+        patterns: [
+            "_shortLink/:shortLink",
+            ":username/videos/:caption/:id",
+            ":username/videos/:id",
+            "reel/:id",
+            "share/:shareType/:id"
+        ],
+        subdomains: ["web", "m"],
+        altDomains: ["fb.watch"],
+    },
+    instagram: {
+        patterns: [
+            "p/:postId",
+            "tv/:postId",
+            "reel/:postId",
+            "reels/:postId",
+            "stories/:username/:storyId",
+
+            /*
+                share & username links use the same url pattern,
+                so we test the share pattern first, cuz id type is different.
+                however, if someone has the "share" username and the user
+                somehow gets a link of this ancient style, it's joever.
+            */
+
+            "share/:shareId",
+            "share/p/:shareId",
+            "share/reel/:shareId",
+
+            ":username/p/:postId",
+            ":username/reel/:postId",
+        ],
+        altDomains: ["ddinstagram.com"],
+    },
+    loom: {
+        patterns: ["share/:id", "embed/:id"],
+    },
+    ok: {
+        patterns: [
+            "video/:id",
+            "videoembed/:id"
+        ],
+        tld: "ru",
+    },
+    pinterest: {
+        patterns: [
+            "pin/:id",
+            "pin/:id/:garbage",
+            "url_shortener/:shortLink"
+        ],
+    },
+    newgrounds: {
+        patterns: [
+            "portal/view/:id",
+            "audio/listen/:audioId",
+        ]
+    },
+    reddit: {
+        patterns: [
+            "comments/:id",
+
+            "r/:sub/comments/:id",
+            "r/:sub/comments/:id/:title",
+            "r/:sub/comments/:id/comment/:commentId",
+
+            "user/:user/comments/:id",
+            "user/:user/comments/:id/:title",
+            "user/:user/comments/:id/comment/:commentId",
+
+            "r/u_:user/comments/:id",
+            "r/u_:user/comments/:id/:title",
+            "r/u_:user/comments/:id/comment/:commentId",
+
+            "r/:sub/s/:shareId",
+
+            "video/:shortId",
+        ],
+        subdomains: "*",
+    },
+    rutube: {
+        patterns: [
+            "video/:id",
+            "play/embed/:id",
+            "shorts/:id",
+            "yappy/:yappyId",
+            "video/private/:id?p=:key",
+            "video/private/:id"
+        ],
+        tld: "ru",
+    },
+    snapchat: {
+        patterns: [
+            ":shortLink",
+            "spotlight/:spotlightId",
+            "add/:username/:storyId",
+            "u/:username/:storyId",
+            "add/:username",
+            "u/:username",
+            "t/:shortLink",
+            "o/:spotlightId",
+        ],
+        subdomains: ["t", "story"],
+    },
+    soundcloud: {
+        patterns: [
+            ":author/:song/s-:accessKey",
+            ":author/:song",
+            ":shortLink"
+        ],
+        subdomains: ["on", "m"],
+    },
+    streamable: {
+        patterns: [
+            ":id",
+            "o/:id",
+            "e/:id",
+            "s/:id"
+        ],
+    },
+    tiktok: {
+        patterns: [
+            ":user/video/:postId",
+            "i18n/share/video/:postId",
+            ":shortLink",
+            "t/:shortLink",
+            ":user/photo/:postId",
+            "v/:postId.html"
+        ],
+        subdomains: ["vt", "vm", "m", "t"],
+    },
+    tumblr: {
+        patterns: [
+            "post/:id",
+            "blog/view/:user/:id",
+            ":user/:id",
+            ":user/:id/:trackingId"
+        ],
+        subdomains: "*",
+    },
+    twitch: {
+        patterns: [":channel/clip/:clip"],
+        tld: "tv",
+        subdomains: ["clips", "www", "m"],
+    },
+    twitter: {
+        patterns: [
+            ":user/status/:id",
+            ":user/status/:id/video/:index",
+            ":user/status/:id/photo/:index",
+            ":user/status/:id/mediaviewer",
+            ":user/status/:id/mediaViewer",
+            "i/bookmarks?post_id=:id"
+        ],
+        subdomains: ["mobile"],
+        altDomains: ["x.com", "vxtwitter.com", "fixvx.com"],
+    },
+    vimeo: {
+        patterns: [
+            ":id",
+            "video/:id",
+            ":id/:password",
+            "/channels/:user/:id",
+            "groups/:groupId/videos/:id"
+        ],
+        subdomains: ["player"],
+    },
+    vk: {
+        patterns: [
+            "video:ownerId_:videoId",
+            "clip:ownerId_:videoId",
+            "video:ownerId_:videoId_:accessKey",
+            "clip:ownerId_:videoId_:accessKey",
+
+            // links with a duplicate author id and/or zipper query param
+            "clips:duplicateId",
+            "videos:duplicateId",
+            "search/video"
+        ],
+        subdomains: ["m"],
+        altDomains: ["vkvideo.ru", "vk.ru"],
+    },
+    xiaohongshu: {
+        patterns: [
+            "explore/:id?xsec_token=:token",
+            "discovery/item/:id?xsec_token=:token",
+            ":shareType/:shareId",
+        ],
+        altDomains: ["xhslink.com"],
+    },
+    youtube: {
+        patterns: [
+            "watch?v=:id",
+            "embed/:id",
+            "watch/:id",
+            "v/:id"
+        ],
+        subdomains: ["music", "m"],
+    }
+}
+
+Object.values(services).forEach(service => {
+    service.patterns = service.patterns.map(
+        pattern => new UrlPattern(pattern, {
+            segmentValueCharset: UrlPattern.defaultOptions.segmentValueCharset + '@\\.:'
+        })
+    )
+})

api/src/processing/service-patterns.js

@@ -0,0 +1,90 @@
+export const testers = {
+    "bilibili": pattern =>
+        (pattern.comId?.length <= 12 && pattern.partId?.length <= 3) ||
+        (pattern.comId?.length <= 12 && !pattern.partId) ||
+        pattern.comShortLink?.length <= 16 ||
+        pattern.tvId?.length <= 24,
+
+    "bsky": pattern =>
+        pattern.user?.length <= 128 && pattern.post?.length <= 128,
+
+    "dailymotion": pattern => pattern.id?.length <= 32,
+
+    "facebook": pattern =>
+        pattern.shortLink?.length <= 11 ||
+        pattern.username?.length <= 30 ||
+        pattern.caption?.length <= 255 ||
+        pattern.id?.length <= 20 && !pattern.shareType ||
+        pattern.id?.length <= 20 && pattern.shareType?.length === 1,
+
+    "instagram": pattern =>
+        pattern.postId?.length <= 48 ||
+        pattern.shareId?.length <= 16 ||
+        (pattern.username?.length <= 30 && pattern.storyId?.length <= 24),
+
+    "loom": pattern =>
+        pattern.id?.length <= 32,
+
+    "newgrounds": pattern =>
+        pattern.id?.length <= 12 ||
+        pattern.audioId?.length <= 12,
+
+    "ok": pattern =>
+        pattern.id?.length <= 16,
+
+    "pinterest": pattern =>
+        pattern.id?.length <= 128 ||
+        pattern.shortLink?.length <= 32,
+
+    "reddit": pattern =>
+        pattern.id?.length <= 16 && !pattern.sub && !pattern.user ||
+        (pattern.sub?.length <= 22 && pattern.id?.length <= 16) ||
+        (pattern.user?.length <= 22 && pattern.id?.length <= 16) ||
+        (pattern.sub?.length <= 22 && pattern.shareId?.length <= 16) ||
+        (pattern.shortId?.length <= 16),
+
+    "rutube": pattern =>
+        (pattern.id?.length === 32 && pattern.key?.length <= 32) ||
+        pattern.id?.length === 32 ||
+        pattern.yappyId?.length === 32,
+
+    "snapchat": pattern =>
+        (pattern.username?.length <= 32 && (!pattern.storyId || pattern.storyId?.length <= 255)) ||
+        pattern.spotlightId?.length <= 255 ||
+        pattern.shortLink?.length <= 16,
+
+    "soundcloud": pattern =>
+        (pattern.author?.length <= 255 && pattern.song?.length <= 255) ||
+        pattern.shortLink?.length <= 32,
+
+    "streamable": pattern =>
+        pattern.id?.length <= 6,
+
+    "tiktok": pattern =>
+        pattern.postId?.length <= 21 ||
+        pattern.shortLink?.length <= 21,
+
+    "tumblr": pattern =>
+        pattern.id?.length < 21 ||
+        (pattern.id?.length < 21 && pattern.user?.length <= 32),
+
+    "twitch": pattern =>
+        pattern.channel && pattern.clip?.length <= 100,
+
+    "twitter": pattern =>
+        pattern.id?.length < 20,
+
+    "vimeo": pattern =>
+        pattern.id?.length <= 11 && (!pattern.password || pattern.password.length < 16),
+
+    "vk": pattern =>
+        (pattern.ownerId?.length <= 10 && pattern.videoId?.length <= 10) ||
+        (pattern.ownerId?.length <= 10 && pattern.videoId?.length <= 10 && pattern.videoId?.accessKey <= 18),
+
+    "xiaohongshu": pattern =>
+        pattern.id?.length <= 24 && pattern.token?.length <= 64 ||
+        pattern.shareId?.length <= 24 && pattern.shareType?.length === 1,
+
+    "youtube": pattern =>
+        pattern.id?.length <= 11,
+}

api/src/processing/services/bilibili.js

@@ -1,19 +1,8 @@
 import { genericUserAgent, env } from "../../config.js";
+import { resolveRedirectingURL } from "../url.js";
 
 // TO-DO: higher quality downloads (currently requires an account)
 
-function com_resolveShortlink(shortId) {
-    return fetch(`https://b23.tv/${shortId}`, { redirect: 'manual' })
-            .then(r => r.status > 300 && r.status < 400 && r.headers.get('location'))
-            .then(url => {
-                if (!url) return;
-                const path = new URL(url).pathname;
-                if (path.startsWith('/video/'))
-                    return path.split('/')[2];
-            })
-            .catch(() => {})
-}
-
 function getBest(content) {
     return content?.filter(v => v.baseUrl || v.url)
                 .map(v => (v.baseUrl = v.baseUrl || v.url, v))
@@ -28,30 +17,51 @@ function extractBestQuality(dashData) {
     return [ bestVideo, bestAudio ];
 }
 
-async function com_download(id) {
-    let html = await fetch(`https://bilibili.com/video/${id}`, {
-        headers: { "user-agent": genericUserAgent }
-    }).then(r => r.text()).catch(() => {});
-    if (!html) return { error: 'ErrorCouldntFetch' };
+async function com_download(id, partId) {
+    const url = new URL(`https://bilibili.com/video/${id}`);
 
-    if (!(html.includes('<script>window.__playinfo__=') && html.includes('"video_codecid"'))) {
-        return { error: 'ErrorEmptyDownload' };
+    if (partId) {
+        url.searchParams.set('p', partId);
     }
 
-    let streamData = JSON.parse(html.split('<script>window.__playinfo__=')[1].split('</script>')[0]);
+    const html = await fetch(url, {
+        headers: {
+            "user-agent": genericUserAgent
+        }
+    })
+    .then(r => r.text())
+    .catch(() => {});
+
+    if (!html) {
+        return { error: "fetch.fail" }
+    }
+
+    if (!(html.includes('<script>window.__playinfo__=') && html.includes('"video_codecid"'))) {
+        return { error: "fetch.empty" };
+    }
+
+    const streamData = JSON.parse(
+        html.split('<script>window.__playinfo__=')[1].split('</script>')[0]
+    );
+
     if (streamData.data.timelength > env.durationLimit * 1000) {
-        return { error: ['ErrorLengthLimit', env.durationLimit / 60] };
+        return { error: "content.too_long" };
     }
 
     const [ video, audio ] = extractBestQuality(streamData.data.dash);
     if (!video || !audio) {
-        return { error: 'ErrorEmptyDownload' };
+        return { error: "fetch.empty" };
+    }
+
+    let filenameBase = `bilibili_${id}`;
+    if (partId) {
+        filenameBase += `_${partId}`;
     }
 
     return {
         urls: [video.baseUrl, audio.baseUrl],
-        audioFilename: `bilibili_${id}_audio`,
-        filename: `bilibili_${id}_${video.width}x${video.height}.mp4`
+        audioFilename: `${filenameBase}_audio`,
+        filename: `${filenameBase}_${video.width}x${video.height}.mp4`,
     };
 }
 
@@ -66,7 +76,7 @@ async function tv_download(id) {
 
     const { data } = await fetch(url).then(a => a.json());
     if (!data?.playurl?.video) {
-        return { error: 'ErrorEmptyDownload' };
+        return { error: "fetch.empty" };
     }
 
     const [ video, audio ] = extractBestQuality({
@@ -76,11 +86,11 @@ async function tv_download(id) {
     });
 
     if (!video || !audio) {
-        return { error: 'ErrorEmptyDownload' };
+        return { error: "fetch.empty" };
     }
 
     if (video.duration > env.durationLimit * 1000) {
-        return { error: ['ErrorLengthLimit', env.durationLimit / 60] };
+        return { error: "content.too_long" };
     }
 
     return {
@@ -90,16 +100,17 @@ async function tv_download(id) {
     };
 }
 
-export default async function({ comId, tvId, comShortLink }) {
+export default async function({ comId, tvId, comShortLink, partId }) {
     if (comShortLink) {
-        comId = await com_resolveShortlink(comShortLink);
+        const patternMatch = await resolveRedirectingURL(`https://b23.tv/${comShortLink}`);
+        comId = patternMatch?.comId;
     }
 
     if (comId) {
-        return com_download(comId);
+        return com_download(comId, partId);
     } else if (tvId) {
         return tv_download(tvId);
     }
 
-    return { error: 'ErrorCouldntFetch' };
+    return { error: "fetch.fail" };
 }

api/src/processing/services/bluesky.js

@@ -0,0 +1,157 @@
+import HLS from "hls-parser";
+import { cobaltUserAgent } from "../../config.js";
+import { createStream } from "../../stream/manage.js";
+
+const extractVideo = async ({ media, filename, dispatcher }) => {
+    let urlMasterHLS = media?.playlist;
+
+    if (!urlMasterHLS || !urlMasterHLS.startsWith("https://video.bsky.app/")) {
+        return { error: "fetch.empty" };
+    }
+
+    urlMasterHLS = urlMasterHLS.replace(
+        "video.bsky.app/watch/",
+        "video.cdn.bsky.app/hls/"
+    );
+
+    const masterHLS = await fetch(urlMasterHLS, { dispatcher })
+        .then(r => {
+            if (r.status !== 200) return;
+            return r.text();
+        })
+        .catch(() => {});
+
+    if (!masterHLS) return { error: "fetch.empty" };
+
+    const video = HLS.parse(masterHLS)
+            ?.variants
+            ?.reduce((a, b) => a?.bandwidth > b?.bandwidth ? a : b);
+
+    const videoURL = new URL(video.uri, urlMasterHLS).toString();
+
+    return {
+        urls: videoURL,
+        filename: `${filename}.mp4`,
+        audioFilename: `${filename}_audio`,
+        isHLS: true,
+    }
+}
+
+const extractImages = ({ getPost, filename, alwaysProxy }) => {
+    const images = getPost?.thread?.post?.embed?.images;
+
+    if (!images || images.length === 0) {
+        return { error: "fetch.empty" };
+    }
+
+    if (images.length === 1) return {
+        urls: images[0].fullsize,
+        isPhoto: true,
+        filename: `${filename}.jpg`,
+    }
+
+    const picker = images.map((image, i) => {
+        let url = image.fullsize;
+        let proxiedImage = createStream({
+            service: "bluesky",
+            type: "proxy",
+            url,
+            filename: `${filename}_${i + 1}.jpg`,
+        });
+
+        if (alwaysProxy) url = proxiedImage;
+
+        return {
+            type: "photo",
+            url,
+            thumb: proxiedImage,
+        }
+    });
+
+    return { picker };
+}
+
+const extractGif = ({ url, filename }) => {
+    const gifUrl = new URL(url);
+
+    if (!gifUrl || gifUrl.hostname !== "media.tenor.com") {
+        return { error: "fetch.empty" };
+    }
+
+    // remove downscaling params from gif url
+    // such as "?hh=498&ww=498"
+    gifUrl.search = "";
+
+    return {
+        urls: gifUrl,
+        isPhoto: true,
+        filename: `${filename}.gif`,
+    }
+}
+
+export default async function ({ user, post, alwaysProxy, dispatcher }) {
+    const apiEndpoint = new URL("https://public.api.bsky.app/xrpc/app.bsky.feed.getPostThread?depth=0&parentHeight=0");
+    apiEndpoint.searchParams.set(
+        "uri",
+        `at://${user}/app.bsky.feed.post/${post}`
+    );
+
+    const getPost = await fetch(apiEndpoint, {
+        headers: {
+            "user-agent": cobaltUserAgent,
+        },
+        dispatcher
+    }).then(r => r.json()).catch(() => {});
+
+    if (!getPost) return { error: "fetch.empty" };
+
+    if (getPost.error) {
+        switch (getPost.error) {
+            case "NotFound":
+            case "InternalServerError":
+                return { error: "content.post.unavailable" };
+            case "InvalidRequest":
+                return { error: "link.unsupported" };
+            default:
+                return { error: "content.post.unavailable" };
+        }
+    }
+
+    const embedType = getPost?.thread?.post?.embed?.$type;
+    const filename = `bluesky_${user}_${post}`;
+
+    switch (embedType) {
+        case "app.bsky.embed.video#view":
+            return extractVideo({
+                media: getPost.thread?.post?.embed,
+                filename,
+            });
+
+        case "app.bsky.embed.images#view":
+            return extractImages({
+                getPost,
+                filename,
+                alwaysProxy
+            });
+
+        case "app.bsky.embed.external#view":
+            return extractGif({
+                url: getPost?.thread?.post?.embed?.external?.uri,
+                filename,
+            });
+
+        case "app.bsky.embed.recordWithMedia#view":
+            if (getPost?.thread?.post?.embed?.media?.$type === "app.bsky.embed.external#view") {
+                return extractGif({
+                    url: getPost?.thread?.post?.embed?.media?.external?.uri,
+                    filename,
+                });
+            }
+            return extractVideo({
+                media: getPost.thread?.post?.embed?.media,
+                filename,
+            });
+    }
+
+    return { error: "fetch.empty" };
+}

api/src/processing/services/dailymotion.js

@@ -1,5 +1,5 @@
-import HLSParser from 'hls-parser';
-import { env } from '../../config.js';
+import HLSParser from "hls-parser";
+import { env } from "../../config.js";
 
 let _token;
 
@@ -31,7 +31,7 @@ const getToken = async () => {
 
 export default async function({ id }) {
     const token = await getToken();
-    if (!token) return { error: 'ErrorSomethingWentWrong' };
+    if (!token) return { error: "fetch.fail" };
 
     const req = await fetch('https://graphql.api.dailymotion.com/',
         {
@@ -70,20 +70,20 @@ export default async function({ id }) {
     const media = req?.data?.media;
 
     if (media?.__typename !== 'Video' || !media.hlsURL) {
-        return { error: 'ErrorEmptyDownload' }
+        return { error: "fetch.empty" }
     }
 
     if (media.duration > env.durationLimit) {
-        return { error: ['ErrorLengthLimit', env.durationLimit / 60] };
+        return { error: "content.too_long" };
     }
 
     const manifest = await fetch(media.hlsURL).then(r => r.text()).catch(() => {});
-    if (!manifest) return { error: 'ErrorSomethingWentWrong' };
+    if (!manifest) return { error: "fetch.fail" };
 
     const bestQuality = HLSParser.parse(manifest).variants
                         .filter(v => v.codecs.includes('avc1'))
                         .reduce((a, b) => a.bandwidth > b.bandwidth ? a : b);
-    if (!bestQuality) return { error: 'ErrorEmptyDownload' }
+    if (!bestQuality) return { error: "fetch.empty" }
 
     const fileMetadata = {
         title: media.title,
@@ -92,7 +92,7 @@ export default async function({ id }) {
 
     return {
         urls: bestQuality.uri,
-        isM3U8: true,
+        isHLS: true,
         filenameAttributes: {
             service: 'dailymotion',
             id: media.xid,

api/src/processing/services/facebook.js

@@ -8,8 +8,8 @@ const headers = {
     'Sec-Fetch-Site': 'none',
 }
 
-const resolveUrl = (url) => {
-    return fetch(url, { headers })
+const resolveUrl = (url, dispatcher) => {
+    return fetch(url, { headers, dispatcher })
         .then(r => {
             if (r.headers.get('location')) {
                 return decodeURIComponent(r.headers.get('location'));
@@ -23,17 +23,18 @@ const resolveUrl = (url) => {
         .catch(() => false);
 }
 
-export default async function({ id, shareType, shortLink }) {
+export default async function({ id, shareType, shortLink, dispatcher }) {
     let url = `https://web.facebook.com/i/videos/${id}`;
 
     if (shareType) url = `https://web.facebook.com/share/${shareType}/${id}`;
-    if (shortLink) url = await resolveUrl(`https://fb.watch/${shortLink}`);
+    if (shortLink) url = await resolveUrl(`https://fb.watch/${shortLink}`, dispatcher);
 
-    const html = await fetch(url, { headers })
+    const html = await fetch(url, { headers, dispatcher })
         .then(r => r.text())
         .catch(() => false);
 
-    if (!html) return { error: 'ErrorCouldntFetch' };
+    if (!html && shortLink) return { error: "fetch.short_link" }
+    if (!html) return { error: "fetch.fail" };
 
     const urls = [];
     const hd = html.match('"browser_native_hd_url":(".*?")');
@@ -43,7 +44,7 @@ export default async function({ id, shareType, shortLink }) {
     if (sd?.[1]) urls.push(JSON.parse(sd[1]));
 
     if (!urls.length) {
-        return { error: 'ErrorEmptyDownload' };
+        return { error: "fetch.empty" };
     }
 
     const baseFilename = `facebook_${id || shortLink}`;

api/src/processing/services/instagram.js

@@ -0,0 +1,541 @@
+import { randomBytes } from "node:crypto";
+import { resolveRedirectingURL } from "../url.js";
+import { genericUserAgent } from "../../config.js";
+import { createStream } from "../../stream/manage.js";
+import { getCookie, updateCookie } from "../cookie/manager.js";
+
+const commonHeaders = {
+    "user-agent": genericUserAgent,
+    "sec-gpc": "1",
+    "sec-fetch-site": "same-origin",
+    "x-ig-app-id": "936619743392459"
+}
+
+const mobileHeaders = {
+    "x-ig-app-locale": "en_US",
+    "x-ig-device-locale": "en_US",
+    "x-ig-mapped-locale": "en_US",
+    "user-agent": "Instagram 275.0.0.27.98 Android (33/13; 280dpi; 720x1423; Xiaomi; Redmi 7; onclite; qcom; en_US; 458229237)",
+    "accept-language": "en-US",
+    "x-fb-http-engine": "Liger",
+    "x-fb-client-ip": "True",
+    "x-fb-server-cluster": "True",
+    "content-length": "0",
+}
+
+const embedHeaders = {
+    "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
+    "Accept-Language": "en-GB,en;q=0.9",
+    "Cache-Control": "max-age=0",
+    "Dnt": "1",
+    "Priority": "u=0, i",
+    "Sec-Ch-Ua": 'Chromium";v="124", "Google Chrome";v="124", "Not-A.Brand";v="99',
+    "Sec-Ch-Ua-Mobile": "?0",
+    "Sec-Ch-Ua-Platform": "macOS",
+    "Sec-Fetch-Dest": "document",
+    "Sec-Fetch-Mode": "navigate",
+    "Sec-Fetch-Site": "none",
+    "Sec-Fetch-User": "?1",
+    "Upgrade-Insecure-Requests": "1",
+    "User-Agent": genericUserAgent,
+}
+
+const cachedDtsg = {
+    value: '',
+    expiry: 0
+}
+
+const getNumberFromQuery = (name, data) => {
+    const s = data?.match(new RegExp(name + '=(\\d+)'))?.[1];
+    if (+s) return +s;
+}
+
+const getObjectFromEntries = (name, data) => {
+    const obj = data?.match(new RegExp('\\["' + name + '",.*?,({.*?}),\\d+\\]'))?.[1];
+    return obj && JSON.parse(obj);
+}
+
+export default function instagram(obj) {
+    const dispatcher = obj.dispatcher;
+
+    async function findDtsgId(cookie) {
+        try {
+            if (cachedDtsg.expiry > Date.now()) return cachedDtsg.value;
+
+            const data = await fetch('https://www.instagram.com/', {
+                headers: {
+                    ...commonHeaders,
+                    cookie
+                },
+                dispatcher
+            }).then(r => r.text());
+
+            const token = data.match(/"dtsg":{"token":"(.*?)"/)[1];
+
+            cachedDtsg.value = token;
+            cachedDtsg.expiry = Date.now() + 86390000;
+
+            if (token) return token;
+            return false;
+        }
+        catch {}
+    }
+
+    async function request(url, cookie, method = 'GET', requestData) {
+        let headers = {
+            ...commonHeaders,
+            'x-ig-www-claim': cookie?._wwwClaim || '0',
+            'x-csrftoken': cookie?.values()?.csrftoken,
+            cookie
+        }
+        if (method === 'POST') {
+            headers['content-type'] = 'application/x-www-form-urlencoded';
+        }
+
+        const data = await fetch(url, {
+            method,
+            headers,
+            body: requestData && new URLSearchParams(requestData),
+            dispatcher
+        });
+
+        if (data.headers.get('X-Ig-Set-Www-Claim') && cookie)
+            cookie._wwwClaim = data.headers.get('X-Ig-Set-Www-Claim');
+
+        updateCookie(cookie, data.headers);
+        return data.json();
+    }
+
+    async function getMediaId(id, { cookie, token } = {}) {
+        const oembedURL = new URL('https://i.instagram.com/api/v1/oembed/');
+        oembedURL.searchParams.set('url', `https://www.instagram.com/p/${id}/`);
+
+        const oembed = await fetch(oembedURL, {
+            headers: {
+                ...mobileHeaders,
+                ...( token && { authorization: `Bearer ${token}` } ),
+                cookie
+            },
+            dispatcher
+        }).then(r => r.json()).catch(() => {});
+
+        return oembed?.media_id;
+    }
+
+    async function requestMobileApi(mediaId, { cookie, token } = {}) {
+        const mediaInfo = await fetch(`https://i.instagram.com/api/v1/media/${mediaId}/info/`, {
+            headers: {
+                ...mobileHeaders,
+                ...( token && { authorization: `Bearer ${token}` } ),
+                cookie
+            },
+            dispatcher
+        }).then(r => r.json()).catch(() => {});
+
+        return mediaInfo?.items?.[0];
+    }
+
+    async function requestHTML(id, cookie) {
+        const data = await fetch(`https://www.instagram.com/p/${id}/embed/captioned/`, {
+            headers: {
+                ...embedHeaders,
+                cookie
+            },
+            dispatcher
+        }).then(r => r.text()).catch(() => {});
+
+        let embedData = JSON.parse(data?.match(/"init",\[\],\[(.*?)\]\],/)[1]);
+
+        if (!embedData || !embedData?.contextJSON) return false;
+
+        embedData = JSON.parse(embedData.contextJSON);
+
+        return embedData;
+    }
+
+    async function getGQLParams(id, cookie) {
+        const req = await fetch(`https://www.instagram.com/p/${id}/`, {
+            headers: {
+                ...embedHeaders,
+                cookie
+            },
+            dispatcher
+        });
+
+        const html = await req.text();
+        const siteData = getObjectFromEntries('SiteData', html);
+        const polarisSiteData = getObjectFromEntries('PolarisSiteData', html);
+        const webConfig = getObjectFromEntries('DGWWebConfig', html);
+        const pushInfo = getObjectFromEntries('InstagramWebPushInfo', html);
+        const lsd = getObjectFromEntries('LSD', html)?.token || randomBytes(8).toString('base64url');
+        const csrf = getObjectFromEntries('InstagramSecurityConfig', html)?.csrf_token;
+
+        const anon_cookie = [
+            csrf && "csrftoken=" + csrf,
+            polarisSiteData?.device_id && "ig_did=" + polarisSiteData?.device_id,
+            "wd=1280x720",
+            "dpr=2",
+            polarisSiteData?.machine_id && "mid=" + polarisSiteData.machine_id,
+            "ig_nrcb=1"
+        ].filter(a => a).join('; ');
+
+        return {
+            headers: {
+                'x-ig-app-id': webConfig?.appId || '936619743392459',
+                'X-FB-LSD': lsd,
+                'X-CSRFToken': csrf,
+                'X-Bloks-Version-Id': getObjectFromEntries('WebBloksVersioningID', html)?.versioningID,
+                'x-asbd-id': 129477,
+                cookie: anon_cookie
+            },
+            body: {
+                __d: 'www',
+                __a: '1',
+                __s: '::' + Math.random().toString(36).substring(2).replace(/\d/g, '').slice(0, 6),
+                __hs: siteData?.haste_session || '20126.HYP:instagram_web_pkg.2.1...0',
+                __req: 'b',
+                __ccg: 'EXCELLENT',
+                __rev: pushInfo?.rollout_hash || '1019933358',
+                __hsi: siteData?.hsi || '7436540909012459023',
+                __dyn: randomBytes(154).toString('base64url'),
+                __csr: randomBytes(154).toString('base64url'),
+                __user: '0',
+                __comet_req: getNumberFromQuery('__comet_req', html) || '7',
+                av: '0',
+                dpr: '2',
+                lsd,
+                jazoest: getNumberFromQuery('jazoest', html) || Math.floor(Math.random() * 10000),
+                __spin_r: siteData?.__spin_r || '1019933358',
+                __spin_b: siteData?.__spin_b || 'trunk',
+                __spin_t: siteData?.__spin_t || Math.floor(new Date().getTime() / 1000),
+            }
+        };
+    }
+
+    async function requestGQL(id, cookie) {
+        const { headers, body } = await getGQLParams(id, cookie);
+
+        const req = await fetch('https://www.instagram.com/graphql/query', {
+            method: 'POST',
+            dispatcher,
+            headers: {
+                ...embedHeaders,
+                ...headers,
+                cookie,
+                'content-type': 'application/x-www-form-urlencoded',
+                'X-FB-Friendly-Name': 'PolarisPostActionLoadPostQueryQuery',
+            },
+            body: new URLSearchParams({
+                ...body,
+                fb_api_caller_class: 'RelayModern',
+                fb_api_req_friendly_name: 'PolarisPostActionLoadPostQueryQuery',
+                variables: JSON.stringify({
+                    shortcode: id,
+                    fetch_tagged_user_count: null,
+                    hoisted_comment_id: null,
+                    hoisted_reply_id: null
+                }),
+                server_timestamps: true,
+                doc_id: '8845758582119845'
+            }).toString()
+        });
+
+        return {
+            gql_data: await req.json()
+                        .then(r => r.data)
+                        .catch(() => null)
+        };
+    }
+
+    async function getErrorContext(id) {
+        try {
+            const { headers, body } = await getGQLParams(id);
+
+            const req = await fetch('https://www.instagram.com/ajax/bulk-route-definitions/', {
+                method: 'POST',
+                dispatcher,
+                headers: {
+                    ...embedHeaders,
+                    ...headers,
+                    'content-type': 'application/x-www-form-urlencoded',
+                    'X-Ig-D': 'www',
+                },
+                body: new URLSearchParams({
+                    'route_urls[0]': `/p/${id}/`,
+                    routing_namespace: 'igx_www',
+                    ...body
+                }).toString()
+            });
+
+            const response = await req.text();
+            if (response.includes('"tracePolicy":"polaris.privatePostPage"'))
+                return { error: 'content.post.private' };
+
+            const [, mediaId, mediaOwnerId] = response.match(
+                /"media_id":\s*?"(\d+)","media_owner_id":\s*?"(\d+)"/
+            ) || [];
+
+            if (mediaId && mediaOwnerId) {
+                const rulingURL = new URL('https://www.instagram.com/api/v1/web/get_ruling_for_media_content_logged_out');
+                rulingURL.searchParams.set('media_id', mediaId);
+                rulingURL.searchParams.set('owner_id', mediaOwnerId);
+
+                const rulingResponse = await fetch(rulingURL, {
+                    headers: {
+                        ...headers,
+                        ...commonHeaders
+                    },
+                    dispatcher,
+                }).then(a => a.json()).catch(() => ({}));
+
+                if (rulingResponse?.title?.includes('Restricted'))
+                    return { error: "content.post.age" };
+            }
+        } catch {
+            return { error: "fetch.fail" };
+        }
+
+        return { error: "fetch.empty" };
+    }
+
+    function extractOldPost(data, id, alwaysProxy) {
+        const shortcodeMedia = data?.gql_data?.shortcode_media || data?.gql_data?.xdt_shortcode_media;
+        const sidecar = shortcodeMedia?.edge_sidecar_to_children;
+
+        if (sidecar) {
+            const picker = sidecar.edges.filter(e => e.node?.display_url)
+                .map((e, i) => {
+                    const type = e.node?.is_video && e.node?.video_url ? "video" : "photo";
+
+                    let url;
+                    if (type === "video") {
+                        url = e.node?.video_url;
+                    } else if (type === "photo") {
+                        url = e.node?.display_url;
+                    }
+
+                    let itemExt = type === "video" ? "mp4" : "jpg";
+
+                    let proxyFile;
+                    if (alwaysProxy) proxyFile = createStream({
+                        service: "instagram",
+                        type: "proxy",
+                        url,
+                        filename: `instagram_${id}_${i + 1}.${itemExt}`
+                    });
+
+                    return {
+                        type,
+                        url: proxyFile || url,
+                        /* thumbnails have `Cross-Origin-Resource-Policy`
+                        ** set to `same-origin`, so we need to proxy them */
+                        thumb: createStream({
+                            service: "instagram",
+                            type: "proxy",
+                            url: e.node?.display_url,
+                            filename: `instagram_${id}_${i + 1}.jpg`
+                        })
+                    }
+                });
+
+            if (picker.length) return { picker }
+        }
+
+        if (shortcodeMedia?.video_url) {
+            return {
+                urls: shortcodeMedia.video_url,
+                filename: `instagram_${id}.mp4`,
+                audioFilename: `instagram_${id}_audio`
+            }
+        }
+
+        if (shortcodeMedia?.display_url) {
+            return {
+                urls: shortcodeMedia.display_url,
+                isPhoto: true,
+                filename: `instagram_${id}.jpg`,
+            }
+        }
+    }
+
+    function extractNewPost(data, id, alwaysProxy) {
+        const carousel = data.carousel_media;
+        if (carousel) {
+            const picker = carousel.filter(e => e?.image_versions2)
+                .map((e, i) => {
+                    const type = e.video_versions ? "video" : "photo";
+                    const imageUrl = e.image_versions2.candidates[0].url;
+
+                    let url = imageUrl;
+                    let itemExt = type === "video" ? "mp4" : "jpg";
+
+                    if (type === "video") {
+                        const video = e.video_versions.reduce((a, b) => a.width * a.height < b.width * b.height ? b : a);
+                        url = video.url;
+                    }
+
+                    let proxyFile;
+                    if (alwaysProxy) proxyFile = createStream({
+                        service: "instagram",
+                        type: "proxy",
+                        url,
+                        filename: `instagram_${id}_${i + 1}.${itemExt}`
+                    });
+
+                    return {
+                        type,
+                        url: proxyFile || url,
+                        /* thumbnails have `Cross-Origin-Resource-Policy`
+                        ** set to `same-origin`, so we need to always proxy them */
+                        thumb: createStream({
+                            service: "instagram",
+                            type: "proxy",
+                            url: imageUrl,
+                            filename: `instagram_${id}_${i + 1}.jpg`
+                        })
+                    }
+                });
+
+            if (picker.length) return { picker }
+        } else if (data.video_versions) {
+            const video = data.video_versions.reduce((a, b) => a.width * a.height < b.width * b.height ? b : a)
+            return {
+                urls: video.url,
+                filename: `instagram_${id}.mp4`,
+                audioFilename: `instagram_${id}_audio`
+            }
+        } else if (data.image_versions2?.candidates) {
+            return {
+                urls: data.image_versions2.candidates[0].url,
+                isPhoto: true,
+                filename: `instagram_${id}.jpg`,
+            }
+        }
+    }
+
+    async function getPost(id, alwaysProxy) {
+        const hasData = (data) => data
+                                    && data.gql_data !== null
+                                    && data?.gql_data?.xdt_shortcode_media !== null;
+        let data, result;
+        try {
+            const cookie = getCookie('instagram');
+
+            const bearer = getCookie('instagram_bearer');
+            const token = bearer?.values()?.token;
+
+            // get media_id for mobile api, three methods
+            let media_id = await getMediaId(id);
+            if (!media_id && token) media_id = await getMediaId(id, { token });
+            if (!media_id && cookie) media_id = await getMediaId(id, { cookie });
+
+            // mobile api (bearer)
+            if (media_id && token) data = await requestMobileApi(media_id, { token });
+
+            // mobile api (no cookie, cookie)
+            if (media_id && !hasData(data)) data = await requestMobileApi(media_id);
+            if (media_id && cookie && !hasData(data)) data = await requestMobileApi(media_id, { cookie });
+
+            // html embed (no cookie, cookie)
+            if (!hasData(data)) data = await requestHTML(id);
+            if (!hasData(data) && cookie) data = await requestHTML(id, cookie);
+
+            // web app graphql api (no cookie, cookie)
+            if (!hasData(data)) data = await requestGQL(id);
+            if (!hasData(data) && cookie) data = await requestGQL(id, cookie);
+        } catch {}
+
+        if (!hasData(data)) {
+            return getErrorContext(id);
+        }
+
+        if (data?.gql_data) {
+            result = extractOldPost(data, id, alwaysProxy)
+        } else {
+            result = extractNewPost(data, id, alwaysProxy)
+        }
+
+        if (result) return result;
+        return { error: "fetch.empty" }
+    }
+
+    async function usernameToId(username, cookie) {
+        const url = new URL('https://www.instagram.com/api/v1/users/web_profile_info/');
+            url.searchParams.set('username', username);
+
+        try {
+            const data = await request(url, cookie);
+            return data?.data?.user?.id;
+        } catch {}
+    }
+
+    async function getStory(username, id) {
+        const cookie = getCookie('instagram');
+        if (!cookie) return { error: "link.unsupported" };
+
+        const userId = await usernameToId(username, cookie);
+        if (!userId) return { error: "fetch.empty" };
+
+        const dtsgId = await findDtsgId(cookie);
+
+        const url = new URL('https://www.instagram.com/api/graphql/');
+        const requestData = {
+            fb_dtsg: dtsgId,
+            jazoest: '26438',
+            variables: JSON.stringify({
+                reel_ids_arr : [ userId ],
+            }),
+            server_timestamps: true,
+            doc_id: '25317500907894419'
+        };
+
+        let media;
+        try {
+            const data = (await request(url, cookie, 'POST', requestData));
+            media = data?.data?.xdt_api__v1__feed__reels_media?.reels_media?.find(m => m.id === userId);
+        } catch {}
+
+        const item = media.items.find(m => m.pk === id);
+        if (!item) return { error: "fetch.empty" };
+
+        if (item.video_versions) {
+            const video = item.video_versions.reduce((a, b) => a.width * a.height < b.width * b.height ? b : a)
+            return {
+                urls: video.url,
+                filename: `instagram_${id}.mp4`,
+                audioFilename: `instagram_${id}_audio`
+            }
+        }
+
+        if (item.image_versions2?.candidates) {
+            return {
+                urls: item.image_versions2.candidates[0].url,
+                isPhoto: true,
+                filename: `instagram_${id}.jpg`,
+            }
+        }
+
+        return { error: "link.unsupported" };
+    }
+
+    const { postId, shareId, storyId, username, alwaysProxy } = obj;
+
+    if (shareId) {
+        return resolveRedirectingURL(
+            `https://www.instagram.com/share/${shareId}/`,
+            dispatcher,
+            // for some reason instagram decides to return HTML
+            // instead of a redirect when requesting with a normal
+            // browser user-agent
+            {'User-Agent': 'curl/7.88.1'}
+        ).then(match => instagram({
+            ...obj, ...match,
+            shareId: undefined
+        }));
+    }
+
+    if (postId) return getPost(postId, alwaysProxy);
+    if (username && storyId) return getStory(username, storyId);
+
+    return { error: "fetch.empty" }
+}

api/src/processing/services/loom.js

@@ -0,0 +1,108 @@
+import { genericUserAgent } from "../../config.js";
+
+const craftHeaders = id => ({
+    "user-agent": genericUserAgent,
+    "content-type": "application/json",
+    origin: "https://www.loom.com",
+    referer: `https://www.loom.com/share/${id}`,
+    cookie: `loom_referral_video=${id};`,
+    "x-loom-request-source": "loom_web_be851af",
+});
+
+async function fromTranscodedURL(id) {
+    const gql = await fetch(`https://www.loom.com/api/campaigns/sessions/${id}/transcoded-url`, {
+        method: "POST",
+        headers: craftHeaders(id),
+        body: JSON.stringify({
+            force_original: false,
+            password: null,
+            anonID: null,
+            deviceID: null
+        })
+    })
+    .then(r => r.status === 200 && r.json())
+    .catch(() => {});
+
+    if (gql?.url?.includes('.mp4?')) {
+        return gql.url;
+    }
+}
+
+async function fromRawURL(id) {
+    const gql = await fetch(`https://www.loom.com/api/campaigns/sessions/${id}/raw-url`, {
+        method: "POST",
+        headers: craftHeaders(id),
+        body: JSON.stringify({
+            anonID: crypto.randomUUID(),
+            client_name: "web",
+            client_version: "be851af",
+            deviceID: null,
+            force_original: false,
+            password: null,
+            supported_mime_types: ["video/mp4"],
+        })
+    })
+    .then(r => r.status === 200 && r.json())
+    .catch(() => {});
+
+    if (gql?.url?.includes('.mp4?')) {
+        return gql.url;
+    }
+}
+
+async function getTranscript(id) {
+    const gql = await fetch(`https://www.loom.com/graphql`, {
+        method: "POST",
+        headers: craftHeaders(id),
+        body: JSON.stringify({
+            operationName: "FetchVideoTranscriptForFetchTranscript",
+            variables: {
+                videoId: id,
+                password: null,
+            },
+            query: `
+                query FetchVideoTranscriptForFetchTranscript($videoId: ID!, $password: String) {
+                    fetchVideoTranscript(videoId: $videoId, password: $password) {
+                        ... on VideoTranscriptDetails {
+                        captions_source_url
+                        language
+                        __typename
+                        }
+                        ... on GenericError {
+                        message
+                        __typename
+                        }
+                        __typename
+                    }
+                }`,
+        })
+    })
+    .then(r => r.status === 200 && r.json())
+    .catch(() => {});
+
+    if (gql?.data?.fetchVideoTranscript?.captions_source_url?.includes('.vtt?')) {
+        return gql.data.fetchVideoTranscript.captions_source_url;
+    }
+}
+
+export default async function({ id, subtitleLang }) {
+    let url = await fromTranscodedURL(id);
+    url ??= await fromRawURL(id);
+
+    if (!url) {
+        return { error: "fetch.empty" }
+    }
+
+    let subtitles;
+    if (subtitleLang) {
+        const transcript = await getTranscript(id);
+        if (transcript) subtitles = transcript;
+    }
+
+    return {
+        urls: url,
+        subtitles,
+        filename: `loom_${id}.mp4`,
+        audioFilename: `loom_${id}_audio`
+    }
+}

api/src/processing/services/newgrounds.js

@@ -0,0 +1,103 @@
+import { genericUserAgent } from "../../config.js";
+
+const getVideo = async ({ id, quality }) => {
+    const json = await fetch(`https://www.newgrounds.com/portal/video/${id}`, {
+        headers: {
+            "User-Agent": genericUserAgent,
+            "X-Requested-With": "XMLHttpRequest", // required to get the JSON response
+        }
+    })
+    .then(r => r.json())
+    .catch(() => {});
+
+    if (!json) return { error: "fetch.empty" };
+
+    const videoSources = json.sources;
+    const videoQualities = Object.keys(videoSources);
+
+    if (videoQualities.length === 0) {
+        return { error: "fetch.empty" };
+    }
+
+    const bestVideo = videoSources[videoQualities[0]]?.[0],
+          userQuality = quality === "2160" ? "4k" : `${quality}p`,
+          preferredVideo = videoSources[userQuality]?.[0],
+          video = preferredVideo || bestVideo,
+          videoQuality = preferredVideo ? userQuality : videoQualities[0];
+
+    if (!bestVideo || !video.type.includes("mp4")) {
+        return { error: "fetch.empty" };
+    }
+
+    const fileMetadata = {
+        title: decodeURIComponent(json.title),
+        artist: decodeURIComponent(json.author),
+    }
+
+    return {
+        urls: video.src,
+        filenameAttributes: {
+            service: "newgrounds",
+            id,
+            title: fileMetadata.title,
+            author: fileMetadata.artist,
+            extension: "mp4",
+            qualityLabel: videoQuality,
+            resolution: videoQuality,
+        },
+        fileMetadata,
+    }
+}
+
+const getMusic = async ({ id }) => {
+    const html = await fetch(`https://www.newgrounds.com/audio/listen/${id}`, {
+        headers: {
+            "User-Agent": genericUserAgent,
+        }
+    })
+    .then(r => r.text())
+    .catch(() => {});
+
+    if (!html) return { error: "fetch.fail" };
+
+    const params = JSON.parse(
+        `{${html.split(',"params":{')[1]?.split(',"images":')[0]}}`
+    );
+    if (!params) return { error: "fetch.empty" };
+
+    if (!params.name || !params.artist || !params.filename || !params.icon) {
+        return { error: "fetch.empty" };
+    }
+
+    const fileMetadata = {
+        title: decodeURIComponent(params.name),
+        artist: decodeURIComponent(params.artist),
+    }
+
+    return {
+        urls: params.filename,
+        filenameAttributes: {
+            service: "newgrounds",
+            id,
+            title: fileMetadata.title,
+            author: fileMetadata.artist,
+        },
+        fileMetadata,
+        cover:
+            params.icon.includes(".png?") || params.icon.includes(".jpg?")
+                ? params.icon
+                : undefined,
+        isAudioOnly: true,
+        bestAudio: "mp3",
+    }
+}
+
+export default function({ id, audioId, quality }) {
+    if (id) {
+        return getVideo({ id, quality });
+    } else if (audioId) {
+        return getMusic({ id: audioId });
+    }
+
+    return { error: "fetch.empty" };
+}

api/src/processing/services/ok.js

@@ -1,5 +1,4 @@
 import { genericUserAgent, env } from "../../config.js";
-import { cleanString } from "../../sub/utils.js";
 
 const resolutions = {
     "ultra": "2160",
@@ -19,33 +18,33 @@ export default async function(o) {
         headers: { "user-agent": genericUserAgent }
     }).then(r => r.text()).catch(() => {});
 
-    if (!html) return { error: 'ErrorCouldntFetch' };
+    if (!html) return { error: "fetch.fail" };
 
     let videoData = html.match(/<div data-module="OKVideo" .*? data-options="({.*?})"( .*?)>/)
                         ?.[1]
                         ?.replaceAll("&quot;", '"');
 
     if (!videoData) {
-        return { error: 'ErrorEmptyDownload' };
+        return { error: "fetch.empty" };
     }
 
     videoData = JSON.parse(JSON.parse(videoData).flashvars.metadata);
 
     if (videoData.provider !== "UPLOADED_ODKL")
-        return { error: 'ErrorUnsupported' };
+        return { error: "link.unsupported" };
 
     if (videoData.movie.is_live)
-        return { error: 'ErrorLiveVideo' };
+        return { error: "content.video.live" };
 
     if (videoData.movie.duration > env.durationLimit)
-        return { error: ['ErrorLengthLimit', env.durationLimit / 60] };
+        return { error: "content.too_long" };
 
     let videos = videoData.videos.filter(v => !v.disallowed);
     let bestVideo = videos.find(v => resolutions[v.name] === quality) || videos[videos.length - 1];
 
     let fileMetadata = {
-        title: cleanString(videoData.movie.title.trim()),
-        author: cleanString((videoData.author?.name || videoData.compilationTitle).trim()),
+        title: videoData.movie.title.trim(),
+        author: (videoData.author?.name || videoData.compilationTitle)?.trim(),
     }
 
     if (bestVideo) return {
@@ -61,5 +60,5 @@ export default async function(o) {
         }
     }
 
-    return { error: 'ErrorEmptyDownload' }
+    return { error: "fetch.empty" }
 }

api/src/processing/services/pinterest.js

@@ -0,0 +1,52 @@
+import { genericUserAgent } from "../../config.js";
+import { resolveRedirectingURL } from "../url.js";
+
+const videoRegex = /"url":"(https:\/\/v1\.pinimg\.com\/videos\/.*?)"/g;
+const imageRegex = /src="(https:\/\/i\.pinimg\.com\/.*\.(jpg|gif))"/g;
+const notFoundRegex = /"__typename"\s*:\s*"PinNotFound"/;
+
+export default async function(o) {
+    let id = o.id;
+
+    if (!o.id && o.shortLink) {
+        const patternMatch = await resolveRedirectingURL(`https://api.pinterest.com/url_shortener/${o.shortLink}/redirect/`);
+        id = patternMatch?.id;
+    }
+
+    if (id.includes("--")) id = id.split("--")[1];
+    if (!id) return { error: "fetch.fail" };
+
+    const html = await fetch(`https://www.pinterest.com/pin/${id}/`, {
+        headers: { "user-agent": genericUserAgent }
+    }).then(r => r.text()).catch(() => {});
+
+    const invalidPin = html.match(notFoundRegex);
+
+    if (invalidPin) return { error: "fetch.empty" };
+
+    if (!html) return { error: "fetch.fail" };
+
+    const videoLink = [...html.matchAll(videoRegex)]
+                    .map(([, link]) => link)
+                    .find(a => a.endsWith('.mp4'));
+
+    if (videoLink) return {
+        urls: videoLink,
+        filename: `pinterest_${id}.mp4`,
+        audioFilename: `pinterest_${id}_audio`
+    }
+
+    const imageLink = [...html.matchAll(imageRegex)]
+                    .map(([, link]) => link)
+                    .find(a => a.endsWith('.jpg') || a.endsWith('.gif'));
+
+    const imageType = imageLink.endsWith(".gif") ? "gif" : "jpg"
+
+    if (imageLink) return {
+        urls: imageLink,
+        isPhoto: true,
+        filename: `pinterest_${id}.${imageType}`
+    }
+
+    return { error: "fetch.empty" };
+}

api/src/processing/services/reddit.js

@@ -1,3 +1,4 @@
+import { resolveRedirectingURL } from "../url.js";
 import { genericUserAgent, env } from "../../config.js";
 import { getCookie, updateCookieValues } from "../cookie/manager.js";
 
@@ -9,7 +10,7 @@ async function getAccessToken() {
      * you can get these by making a reddit app and
      * authenticating an account against reddit's oauth2 api
      * see: https://github.com/reddit-archive/reddit/wiki/OAuth2
-     * 
+     *
      * any additional cookie fields are managed by this code and you
      * should not touch them unless you know what you're doing. **/
     const cookie = await getCookie('reddit');
@@ -48,42 +49,66 @@ async function getAccessToken() {
 }
 
 export default async function(obj) {
-    let url = new URL(`https://www.reddit.com/r/${obj.sub}/comments/${obj.id}.json`);
+    let params = obj;
+    const accessToken = await getAccessToken();
+    const headers = {
+        'user-agent': genericUserAgent,
+        authorization: accessToken && `Bearer ${accessToken}`,
+        accept: 'application/json'
+    };
 
-    if (obj.user) {
-        url.pathname = `/user/${obj.user}/comments/${obj.id}.json`;
+    if (params.shortId) {
+        params = await resolveRedirectingURL(
+            `https://www.reddit.com/video/${params.shortId}`,
+            obj.dispatcher, headers
+        );
     }
 
-    const accessToken = await getAccessToken();
+    if (!params.id && params.shareId) {
+        params = await resolveRedirectingURL(
+            `https://www.reddit.com/r/${params.sub}/s/${params.shareId}`,
+            obj.dispatcher, headers
+        );
+    }
+
+    if (!params?.id) return { error: "fetch.short_link" };
+
+    const url = new URL(`https://www.reddit.com/comments/${params.id}.json`);
+
     if (accessToken) url.hostname = 'oauth.reddit.com';
 
     let data = await fetch(
-        url, {
-            headers: {
-                'User-Agent': genericUserAgent,
-                accept: 'application/json',
-                authorization: accessToken && `Bearer ${accessToken}`
-            }
-        }
+        url, { headers }
     ).then(r => r.json()).catch(() => {});
 
-    if (!data || !Array.isArray(data)) return { error: 'ErrorCouldntFetch' };
+    if (!data || !Array.isArray(data)) {
+        return { error: "fetch.fail" }
+    }
 
     data = data[0]?.data?.children[0]?.data;
 
+    let sourceId;
+    if (params.sub || params.user) {
+        sourceId = `${String(params.sub || params.user).toLowerCase()}_${params.id}`;
+    } else {
+        sourceId = params.id;
+    }
+
     if (data?.url?.endsWith('.gif')) return {
         typeId: "redirect",
-        urls: data.url
+        urls: data.url,
+        filename: `reddit_${sourceId}.gif`,
     }
 
     if (!data.secure_media?.reddit_video)
-        return { error: 'ErrorEmptyDownload' };
+        return { error: "fetch.empty" };
 
     if (data.secure_media?.reddit_video?.duration > env.durationLimit)
-        return { error: ['ErrorLengthLimit', env.durationLimit / 60] };
+        return { error: "content.too_long" };
+
+    const video = data.secure_media?.reddit_video?.fallback_url?.split('?')[0];
 
     let audio = false,
-        video = data.secure_media?.reddit_video?.fallback_url?.split('?')[0],
         audioFileLink = `${data.secure_media?.reddit_video?.fallback_url?.split('DASH')[0]}audio`;
 
     if (video.match('.mp4')) {
@@ -107,18 +132,16 @@ export default async function(obj) {
         }).catch(() => {})
     }
 
-    let id = `${String(obj.sub).toLowerCase()}_${obj.id}`;
-
     if (!audio) return {
         typeId: "redirect",
         urls: video
     }
 
     return {
-        typeId: "stream",
-        type: "render",
+        typeId: "tunnel",
+        type: "merge",
         urls: [video, audioFileLink],
-        audioFilename: `reddit_${id}_audio`,
-        filename: `reddit_${id}.mp4`
+        audioFilename: `reddit_${sourceId}_audio`,
+        filename: `reddit_${sourceId}.mp4`
     }
 }

api/src/processing/services/rutube.js

@@ -1,7 +1,5 @@
-import HLS from 'hls-parser';
-
+import HLS from "hls-parser";
 import { env } from "../../config.js";
-import { cleanString } from '../../sub/utils.js';
 
 async function requestJSON(url) {
     try {
@@ -18,7 +16,7 @@ export default async function(obj) {
             `https://rutube.ru/pangolin/api/web/yappy/yappypage/?client=wdp&videoId=${obj.yappyId}&page=1&page_size=15`
         )
         const yappyURL = yappy?.results?.find(r => r.id === obj.yappyId)?.link;
-        if (!yappyURL) return { error: 'ErrorEmptyDownload' };
+        if (!yappyURL) return { error: "fetch.empty" };
 
         return {
             urls: yappyURL,
@@ -33,19 +31,23 @@ export default async function(obj) {
     if (obj.key) requestURL.searchParams.set('p', obj.key);
 
     const play = await requestJSON(requestURL);
-    if (!play) return { error: 'ErrorCouldntFetch' };
+    if (!play) return { error: "fetch.fail" };
 
-    if (play.detail || !play.video_balancer) return { error: 'ErrorEmptyDownload' };
-    if (play.live_streams?.hls) return { error: 'ErrorLiveVideo' };
+    if (play.detail?.type === "blocking_rule") {
+        return { error: "content.video.region" };
+    }
+
+    if (play.detail || !play.video_balancer) return { error: "fetch.empty" };
+    if (play.live_streams?.hls) return { error: "content.video.live" };
 
     if (play.duration > env.durationLimit * 1000)
-        return { error: ['ErrorLengthLimit', env.durationLimit / 60] };
+        return { error: "content.too_long" };
 
     let m3u8 = await fetch(play.video_balancer.m3u8)
                      .then(r => r.text())
                      .catch(() => {});
 
-    if (!m3u8) return { error: 'ErrorCouldntFetch' };
+    if (!m3u8) return { error: "fetch.fail" };
 
     m3u8 = HLS.parse(m3u8).variants;
 
@@ -59,13 +61,26 @@ export default async function(obj) {
     });
 
     const fileMetadata = {
-        title: cleanString(play.title.trim()),
-        artist: cleanString(play.author.name.trim()),
+        title: play.title.trim(),
+        artist: play.author.name.trim(),
+    }
+
+    let subtitles;
+    if (obj.subtitleLang && play.captions?.length) {
+        const subtitle = play.captions.find(
+            s => ["webvtt", "srt"].includes(s.format) && s.code.startsWith(obj.subtitleLang)
+        );
+
+        if (subtitle) {
+            subtitles = subtitle.file;
+            fileMetadata.sublanguage = obj.subtitleLang;
+        }
     }
 
     return {
         urls: matchingQuality.uri,
-        isM3U8: true,
+        subtitles,
+        isHLS: true,
         filenameAttributes: {
             service: "rutube",
             id: obj.id,

api/src/processing/services/snapchat.js

@@ -0,0 +1,114 @@
+import { resolveRedirectingURL } from "../url.js";
+import { genericUserAgent } from "../../config.js";
+import { createStream } from "../../stream/manage.js";
+
+const SPOTLIGHT_VIDEO_REGEX = /<link data-react-helmet="true" rel="preload" href="([^"]+)" as="video"\/>/;
+const NEXT_DATA_REGEX = /<script id="__NEXT_DATA__" type="application\/json">({.+})<\/script><\/body><\/html>$/;
+
+async function getSpotlight(id) {
+    const html = await fetch(`https://www.snapchat.com/spotlight/${id}`, {
+        headers: { 'user-agent': genericUserAgent }
+    }).then((r) => r.text()).catch(() => null);
+
+    if (!html) {
+        return { error: "fetch.fail" };
+    }
+
+    const videoURL = html.match(SPOTLIGHT_VIDEO_REGEX)?.[1];
+
+    if (videoURL && new URL(videoURL).hostname.endsWith(".sc-cdn.net")) {
+        return {
+            urls: videoURL,
+            filename: `snapchat_${id}.mp4`,
+            audioFilename: `snapchat_${id}_audio`
+        }
+    }
+}
+
+async function getStory(username, storyId, alwaysProxy) {
+    const html = await fetch(
+        `https://www.snapchat.com/add/${username}${storyId ? `/${storyId}` : ''}`,
+        { headers: { 'user-agent': genericUserAgent } }
+    )
+    .then((r) => r.text())
+    .catch(() => null);
+
+    if (!html) {
+        return { error: "fetch.fail" };
+    }
+
+    const nextDataString = html.match(NEXT_DATA_REGEX)?.[1];
+    if (nextDataString) {
+        const data = JSON.parse(nextDataString);
+        const storyIdParam = data?.query?.profileParams?.[1];
+
+        if (storyIdParam && data?.props?.pageProps?.story) {
+            const story = data.props.pageProps.story.snapList.find((snap) => snap.snapId.value === storyIdParam);
+            if (story) {
+                if (story.snapMediaType === 0) {
+                    return {
+                        urls: story.snapUrls.mediaUrl,
+                        filename: `snapchat_${storyId}.jpg`,
+                        isPhoto: true
+                    }
+                }
+
+                return {
+                    urls: story.snapUrls.mediaUrl,
+                    filename: `snapchat_${storyId}.mp4`,
+                    audioFilename: `snapchat_${storyId}_audio`
+                }
+            }
+        }
+
+        const defaultStory = data?.props?.pageProps?.curatedHighlights?.[0];
+        if (defaultStory) {
+            return {
+                picker: defaultStory.snapList.map(snap => {
+                    const snapType = snap.snapMediaType === 0 ? "photo" : "video";
+                    const snapExt = snapType === "video" ? "mp4" : "jpg";
+                    let snapUrl = snap.snapUrls.mediaUrl;
+
+                    const proxy = createStream({
+                        service: "snapchat",
+                        type: "proxy",
+                        url: snapUrl,
+                        filename: `snapchat_${username}_${snap.timestampInSec.value}.${snapExt}`,
+                    });
+
+                    let thumbProxy;
+                    if (snapType === "video") thumbProxy = createStream({
+                        service: "snapchat",
+                        type: "proxy",
+                        url: snap.snapUrls.mediaPreviewUrl.value,
+                    });
+
+                    if (alwaysProxy) snapUrl = proxy;
+
+                    return {
+                        type: snapType,
+                        url: snapUrl,
+                        thumb: thumbProxy || proxy,
+                    }
+                })
+            }
+        }
+    }
+}
+
+export default async function (obj) {
+    let params = obj;
+    if (obj.shortLink) {
+        params = await resolveRedirectingURL(`https://t.snapchat.com/${obj.shortLink}`);
+    }
+
+    if (params?.spotlightId) {
+        const result = await getSpotlight(params.spotlightId);
+        if (result) return result;
+    } else if (params?.username) {
+        const result = await getStory(params.username, params.storyId, obj.alwaysProxy);
+        if (result) return result;
+    }
+
+    return { error: "fetch.fail" };
+}

api/src/processing/services/soundcloud.js

@@ -0,0 +1,173 @@
+import { env } from "../../config.js";
+import { resolveRedirectingURL } from "../url.js";
+
+const cachedID = {
+    version: '',
+    id: ''
+}
+
+async function findClientID() {
+    try {
+        const sc = await fetch('https://soundcloud.com/').then(r => r.text()).catch(() => {});
+        const scVersion = String(sc.match(/<script>window\.__sc_version="[0-9]{10}"<\/script>/)[0].match(/[0-9]{10}/));
+
+        if (cachedID.version === scVersion) {
+            return cachedID.id;
+        }
+
+        const scripts = sc.matchAll(/<script.+src="(.+)">/g);
+
+        let clientid;
+        for (let script of scripts) {
+            const url = script[1];
+
+            if (!url?.startsWith('https://a-v2.sndcdn.com/')) {
+                return;
+            }
+
+            const scrf = await fetch(url).then(r => r.text()).catch(() => {});
+            const id = scrf.match(/\("client_id=[A-Za-z0-9]{32}"\)/);
+
+            if (id && typeof id[0] === 'string') {
+                clientid = id[0].match(/[A-Za-z0-9]{32}/)[0];
+                break;
+            }
+        }
+        cachedID.version = scVersion;
+        cachedID.id = clientid;
+
+        return clientid;
+    } catch {}
+}
+
+const findBestForPreset = (transcodings, preset) => {
+    let inferior;
+    for (const entry of transcodings) {
+        const protocol = entry?.format?.protocol;
+
+        if (entry.snipped || protocol?.includes('encrypted')) {
+            continue;
+        }
+
+        if (entry?.preset?.startsWith(`${preset}_`)) {
+            if (protocol === 'progressive') {
+                return entry;
+            }
+
+            inferior = entry;
+        }
+    }
+
+    return inferior;
+}
+
+export default async function(obj) {
+    const clientId = await findClientID();
+    if (!clientId) return { error: "fetch.fail" };
+
+    let link;
+
+    if (obj.shortLink) {
+        obj = {
+            ...obj,
+            ...await resolveRedirectingURL(
+                `https://on.soundcloud.com/${obj.shortLink}`
+            )
+        }
+    }
+
+    if (obj.author && obj.song) {
+        link = `https://soundcloud.com/${obj.author}/${obj.song}`;
+        if (obj.accessKey) {
+            link += `/s-${obj.accessKey}`;
+        }
+    }
+
+    if (!link && obj.shortLink) return { error: "fetch.short_link" };
+    if (!link) return { error: "link.unsupported" };
+
+    const resolveURL = new URL("https://api-v2.soundcloud.com/resolve");
+    resolveURL.searchParams.set("url", link);
+    resolveURL.searchParams.set("client_id", clientId);
+
+    const json = await fetch(resolveURL).then(r => r.json()).catch(() => {});
+    if (!json) return { error: "fetch.fail" };
+
+    if (json.duration > env.durationLimit * 1000) {
+        return { error: "content.too_long" };
+    }
+
+    if (json.policy === "BLOCK") {
+        return { error: "content.region" };
+    }
+
+    if (json.policy === "SNIP") {
+        return { error: "content.paid" };
+    }
+
+    if (!json.media?.transcodings || !json.media?.transcodings.length === 0) {
+        return { error: "fetch.empty" };
+    }
+
+    let bestAudio = "opus",
+        selectedStream = findBestForPreset(json.media.transcodings, "opus");
+
+    const mp3Media = findBestForPreset(json.media.transcodings, "mp3");
+
+    // use mp3 if present if user prefers it or if opus isn't available
+    if (mp3Media && (obj.format === "mp3" || !selectedStream)) {
+        selectedStream = mp3Media;
+        bestAudio = "mp3"
+    }
+
+    if (!selectedStream) {
+        return { error: "fetch.empty" };
+    }
+
+    const fileUrl = new URL(selectedStream.url);
+    fileUrl.searchParams.set("client_id", clientId);
+    fileUrl.searchParams.set("track_authorization", json.track_authorization);
+
+    const file = await fetch(fileUrl)
+                     .then(async r => new URL((await r.json()).url))
+                     .catch(() => {});
+
+    if (!file) return { error: "fetch.empty" };
+
+    const artist = json.user?.username?.trim();
+    const fileMetadata = {
+        title: json.title?.trim(),
+        album: json.publisher_metadata?.album_title?.trim(),
+        artist,
+        album_artist: artist,
+        composer: json.publisher_metadata?.writer_composer?.trim(),
+        genre: json.genre?.trim(),
+        date: json.display_date?.trim().slice(0, 10),
+        copyright: json.license?.trim(),
+    }
+
+    let cover;
+    if (json.artwork_url) {
+        const coverUrl = json.artwork_url.replace(/-large/, "-t1080x1080");
+        const testCover = await fetch(coverUrl)
+            .then(r => r.status === 200)
+            .catch(() => {});
+
+        if (testCover) {
+            cover = coverUrl;
+        }
+    }
+
+    return {
+        urls: file.toString(),
+        cover,
+        filenameAttributes: {
+            service: "soundcloud",
+            id: json.id,
+            ...fileMetadata
+        },
+        bestAudio,
+        fileMetadata,
+        isHLS: file.pathname.endsWith('.m3u8'),
+    }
+}

api/src/processing/services/streamable.js

@@ -3,9 +3,9 @@ export default async function(obj) {
                       .then(r => r.status === 200 ? r.json() : false)
                       .catch(() => {});
 
-    if (!video) return { error: 'ErrorEmptyDownload' };
+    if (!video) return { error: "fetch.empty" };
 
-    let best = video.files['mp4-mobile'];
+    let best = video.files["mp4-mobile"];
     if (video.files.mp4 && (obj.isAudioOnly || obj.quality === "max" || obj.quality >= 720)) {
         best = video.files.mp4;
     }
@@ -18,5 +18,5 @@ export default async function(obj) {
             title: video.title
         }
     }
-    return { error: 'ErrorEmptyDownload' }
+    return { error: "fetch.fail" }
 }

api/src/processing/services/tiktok.js

@@ -1,7 +1,10 @@
+import Cookie from "../cookie/cookie.js";
+
+import { extract, normalizeURL } from "../url.js";
 import { genericUserAgent } from "../../config.js";
 import { updateCookie } from "../cookie/manager.js";
-import { extract } from "../url.js";
-import Cookie from "../cookie/cookie.js";
+import { createStream } from "../../stream/manage.js";
+import { convertLanguageCode } from "../../misc/language-codes.js";
 
 const shortDomain = "https://vt.tiktok.com/";
 
@@ -10,25 +13,27 @@ export default async function(obj) {
     let postId = obj.postId;
 
     if (!postId) {
-        let html = await fetch(`${shortDomain}${obj.id}`, {
+        let html = await fetch(`${shortDomain}${obj.shortLink}`, {
             redirect: "manual",
             headers: {
                 "user-agent": genericUserAgent.split(' Chrome/1')[0]
             }
         }).then(r => r.text()).catch(() => {});
 
-        if (!html) return { error: 'ErrorCouldntFetch' };
+        if (!html) return { error: "fetch.fail" };
 
         if (html.startsWith('<a href="https://')) {
             const extractedURL = html.split('<a href="')[1].split('?')[0];
-            const { patternMatch } = extract(extractedURL);
-            postId = patternMatch.postId
+            const { host, patternMatch } = extract(normalizeURL(extractedURL));
+            if (host === "tiktok") {
+                postId = patternMatch?.postId;
+            }
         }
     }
-    if (!postId) return { error: 'ErrorCantGetID' };
+    if (!postId) return { error: "fetch.short_link" };
 
     // should always be /video/, even for photos
-    const res = await fetch(`https://tiktok.com/@i/video/${postId}`, {
+    const res = await fetch(`https://www.tiktok.com/@i/video/${postId}`, {
         headers: {
             "user-agent": genericUserAgent,
             cookie,
@@ -42,20 +47,39 @@ export default async function(obj) {
     try {
         const json = html
             .split('<script id="__UNIVERSAL_DATA_FOR_REHYDRATION__" type="application/json">')[1]
-            .split('</script>')[0]
-        const data = JSON.parse(json)
-        detail = data["__DEFAULT_SCOPE__"]["webapp.video-detail"]["itemInfo"]["itemStruct"]
+            .split('</script>')[0];
+
+        const data = JSON.parse(json);
+        const videoDetail = data["__DEFAULT_SCOPE__"]["webapp.video-detail"];
+
+        if (!videoDetail) throw "no video detail found";
+
+        // status_deleted or etc
+        if (videoDetail.statusMsg) {
+            return { error: "content.post.unavailable"};
+        }
+
+        detail = videoDetail?.itemInfo?.itemStruct;
     } catch {
-        return { error: 'ErrorCouldntFetch' };
+        return { error: "fetch.fail" };
+    }
+
+    if (detail.isContentClassified) {
+        return { error: "content.post.age" };
+    }
+
+    if (!detail.author) {
+        return { error: "fetch.empty" };
     }
 
     let video, videoFilename, audioFilename, audio, images,
-        filenameBase = `tiktok_${detail.author.uniqueId}_${postId}`,
-        bestAudio = 'm4a';
+        filenameBase = `tiktok_${detail.author?.uniqueId}_${postId}`,
+        bestAudio; // will get defaulted to m4a later on in match-action
 
     images = detail.imagePost?.images;
 
-    let playAddr = detail.video.playAddr;
+    let playAddr = detail.video?.playAddr;
+
     if (obj.h265) {
         const h265PlayAddr = detail?.video?.bitrateInfo?.find(b => b.CodecType.includes("h265"))?.PlayAddr.UrlList[0]
         playAddr = h265PlayAddr || playAddr
@@ -76,8 +100,23 @@ export default async function(obj) {
     }
 
     if (video) {
+        let subtitles, fileMetadata;
+        if (obj.subtitleLang && detail?.video?.subtitleInfos?.length) {
+            const langCode = convertLanguageCode(obj.subtitleLang);
+            const subtitle = detail?.video?.subtitleInfos.find(
+                s => s.LanguageCodeName.startsWith(langCode) && s.Format === "webvtt"
+            )
+            if (subtitle) {
+                subtitles = subtitle.Url;
+                fileMetadata = {
+                    sublanguage: langCode,
+                }
+            }
+        }
         return {
             urls: video,
+            subtitles,
+            fileMetadata,
             filename: videoFilename,
             headers: { cookie }
         }
@@ -96,7 +135,19 @@ export default async function(obj) {
     if (images) {
         let imageLinks = images
             .map(i => i.imageURL.urlList.find(p => p.includes(".jpeg?")))
-            .map(url => ({ url }));
+            .map((url, i) => {
+                if (obj.alwaysProxy) url = createStream({
+                    service: "tiktok",
+                    type: "proxy",
+                    url,
+                    filename: `${filenameBase}_photo_${i + 1}.jpg`
+                })
+
+                return {
+                    type: "photo",
+                    url
+                }
+            });
 
         return {
             picker: imageLinks,
@@ -117,4 +168,6 @@ export default async function(obj) {
             headers: { cookie }
         }
     }
+
+    return { error: "fetch.empty" };
 }

api/src/processing/services/tumblr.js

@@ -1,4 +1,4 @@
-import psl from "psl";
+import psl from "@imput/psl";
 
 const API_KEY = 'jrsCWX1XDuVxAFO4GkK147syAoN8BJZ5voz8tS80bPcj26Vc5Z';
 const API_BASE = 'https://api-http2.tumblr.com';
@@ -22,7 +22,7 @@ export default async function(input) {
     let { subdomain } = psl.parse(input.url.hostname);
 
     if (subdomain?.includes('.')) {
-        return { error: ['ErrorBrokenLink', 'tumblr'] }
+        return { error: "link.unsupported" };
     } else if (subdomain === 'www' || subdomain === 'at') {
         subdomain = undefined
     }
@@ -31,7 +31,7 @@ export default async function(input) {
     const data = await request(domain, input.id);
 
     const element = data?.response?.timeline?.elements?.[0];
-    if (!element) return { error: 'ErrorEmptyDownload' };
+    if (!element) return { error: "fetch.empty" };
 
     const contents = [
         ...element.content,
@@ -53,7 +53,8 @@ export default async function(input) {
                 title: fileMetadata.title,
                 author: fileMetadata.artist
             },
-            isAudioOnly: true
+            isAudioOnly: true,
+            bestAudio: "mp3",
         }
     }
 
@@ -66,5 +67,5 @@ export default async function(input) {
         }
     }
 
-    return { error: 'ErrorEmptyDownload' }
+    return { error: "link.unsupported" }
 }

api/src/processing/services/twitch.js

@@ -1,11 +1,10 @@
 import { env } from "../../config.js";
-import { cleanString } from '../../sub/utils.js';
 
 const gqlURL = "https://gql.twitch.tv/gql";
 const clientIdHead = { "client-id": "kimne78kx3ncx6brgo4mv6wki5h1ko" };
 
 export default async function (obj) {
-    let req_metadata = await fetch(gqlURL, {
+    const req_metadata = await fetch(gqlURL, {
         method: "POST",
         headers: clientIdHead,
         body: JSON.stringify({
@@ -30,16 +29,19 @@ export default async function (obj) {
         }`
         })
     }).then(r => r.status === 200 ? r.json() : false).catch(() => {});
-    if (!req_metadata) return { error: 'ErrorCouldntFetch' };
 
-    let clipMetadata = req_metadata.data.clip;
+    if (!req_metadata) return { error: "fetch.fail" };
 
-    if (clipMetadata.durationSeconds > env.durationLimit)
-        return { error: ['ErrorLengthLimit', env.durationLimit / 60] };
-    if (!clipMetadata.videoQualities || !clipMetadata.broadcaster)
-        return { error: 'ErrorEmptyDownload' };
+    const clipMetadata = req_metadata.data.clip;
 
-    let req_token = await fetch(gqlURL, {
+    if (clipMetadata.durationSeconds > env.durationLimit) {
+        return { error: "content.too_long" };
+    }
+    if (!clipMetadata.videoQualities || !clipMetadata.broadcaster) {
+        return { error: "fetch.empty" };
+    }
+
+    const req_token = await fetch(gqlURL, {
         method: "POST",
         headers: clientIdHead,
         body: JSON.stringify([
@@ -58,25 +60,25 @@ export default async function (obj) {
         ])
     }).then(r => r.status === 200 ? r.json() : false).catch(() => {});
 
-    if (!req_token) return { error: 'ErrorCouldntFetch' };
+    if (!req_token) return { error: "fetch.fail" };
 
-    let formats = clipMetadata.videoQualities;
-    let format = formats.find(f => f.quality === obj.quality) || formats[0];
+    const formats = clipMetadata.videoQualities;
+    const format = formats.find(f => f.quality === obj.quality) || formats[0];
 
     return {
-        type: "bridge",
+        type: "proxy",
         urls: `${format.sourceURL}?${new URLSearchParams({
             sig: req_token[0].data.clip.playbackAccessToken.signature,
             token: req_token[0].data.clip.playbackAccessToken.value
         })}`,
         fileMetadata: {
-            title: cleanString(clipMetadata.title.trim()),
+            title: clipMetadata.title.trim(),
             artist: `Twitch Clip by @${clipMetadata.broadcaster.login}, clipped by @${clipMetadata.curator.login}`,
         },
         filenameAttributes: {
             service: "twitch",
             id: clipMetadata.id,
-            title: cleanString(clipMetadata.title.trim()),
+            title: clipMetadata.title.trim(),
             author: `${clipMetadata.broadcaster.login}, clipped by ${clipMetadata.curator.login}`,
             qualityLabel: `${format.quality}p`,
             extension: 'mp4'

api/src/processing/services/twitter.js

@@ -0,0 +1,360 @@
+import HLS from "hls-parser";
+import { genericUserAgent } from "../../config.js";
+import { createStream } from "../../stream/manage.js";
+import { getCookie, updateCookie } from "../cookie/manager.js";
+
+const graphqlURL = 'https://api.x.com/graphql/4Siu98E55GquhG52zHdY5w/TweetDetail';
+const tokenURL = 'https://api.x.com/1.1/guest/activate.json';
+
+const tweetFeatures = JSON.stringify({"rweb_video_screen_enabled":false,"payments_enabled":false,"rweb_xchat_enabled":false,"profile_label_improvements_pcf_label_in_post_enabled":true,"rweb_tipjar_consumption_enabled":true,"verified_phone_label_enabled":false,"creator_subscriptions_tweet_preview_api_enabled":true,"responsive_web_graphql_timeline_navigation_enabled":true,"responsive_web_graphql_skip_user_profile_image_extensions_enabled":false,"premium_content_api_read_enabled":false,"communities_web_enable_tweet_community_results_fetch":true,"c9s_tweet_anatomy_moderator_badge_enabled":true,"responsive_web_grok_analyze_button_fetch_trends_enabled":false,"responsive_web_grok_analyze_post_followups_enabled":true,"responsive_web_jetfuel_frame":true,"responsive_web_grok_share_attachment_enabled":true,"articles_preview_enabled":true,"responsive_web_edit_tweet_api_enabled":true,"graphql_is_translatable_rweb_tweet_is_translatable_enabled":true,"view_counts_everywhere_api_enabled":true,"longform_notetweets_consumption_enabled":true,"responsive_web_twitter_article_tweet_consumption_enabled":true,"tweet_awards_web_tipping_enabled":false,"responsive_web_grok_show_grok_translated_post":false,"responsive_web_grok_analysis_button_from_backend":true,"creator_subscriptions_quote_tweet_preview_enabled":false,"freedom_of_speech_not_reach_fetch_enabled":true,"standardized_nudges_misinfo":true,"tweet_with_visibility_results_prefer_gql_limited_actions_policy_enabled":true,"longform_notetweets_rich_text_read_enabled":true,"longform_notetweets_inline_media_enabled":true,"responsive_web_grok_image_annotation_enabled":true,"responsive_web_grok_imagine_annotation_enabled":true,"responsive_web_grok_community_note_auto_translation_is_enabled":false,"responsive_web_enhance_cards_enabled":false});
+
+const tweetFieldToggles = JSON.stringify({"withArticleRichContentState":true,"withArticlePlainText":false,"withGrokAnalyze":false,"withDisallowedReplyControls":false});
+
+const commonHeaders = {
+    "user-agent": genericUserAgent,
+    "authorization": "Bearer AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH5E6I8xnZz4puTs%3D1Zv7ttfk8LF81IUq16cHjhLTvJu4FA33AGWWjCpTnA",
+    "x-twitter-client-language": "en",
+    "x-twitter-active-user": "yes",
+    "accept-language": "en"
+}
+
+// fix all videos affected by the container bug in twitter muxer (took them over two weeks to fix it????)
+const TWITTER_EPOCH = 1288834974657n;
+const badContainerStart = new Date(1701446400000);
+const badContainerEnd = new Date(1702605600000);
+
+function needsFixing(media) {
+    const representativeId = media.source_status_id_str ?? media.id_str;
+
+    // syndication api doesn't have media ids in its response,
+    // so we just assume it's all good
+    if (!representativeId) return false;
+
+    const mediaTimestamp = new Date(
+        Number((BigInt(representativeId) >> 22n) + TWITTER_EPOCH)
+    );
+    return mediaTimestamp > badContainerStart && mediaTimestamp < badContainerEnd
+}
+
+function bestQuality(arr) {
+    return arr.filter(v => v.content_type === "video/mp4")
+        .reduce((a, b) => Number(a?.bitrate) > Number(b?.bitrate) ? a : b)
+        .url
+}
+
+let _cachedToken;
+const getGuestToken = async (dispatcher, forceReload = false) => {
+    if (_cachedToken && !forceReload) {
+        return _cachedToken;
+    }
+
+    const tokenResponse = await fetch(tokenURL, {
+        method: 'POST',
+        headers: commonHeaders,
+        dispatcher
+    }).then(r => r.status === 200 && r.json()).catch(() => {})
+
+    if (tokenResponse?.guest_token) {
+        return _cachedToken = tokenResponse.guest_token
+    }
+}
+
+const requestSyndication = async(dispatcher, tweetId) => {
+    // thank you
+    // https://github.com/yt-dlp/yt-dlp/blob/05c8023a27dd37c49163c0498bf98e3e3c1cb4b9/yt_dlp/extractor/twitter.py#L1334
+    const token = (id) => ((Number(id) / 1e15) * Math.PI).toString(36).replace(/(0+|\.)/g, '');
+    const syndicationUrl = new URL("https://cdn.syndication.twimg.com/tweet-result");
+
+    syndicationUrl.searchParams.set("id", tweetId);
+    syndicationUrl.searchParams.set("token", token(tweetId));
+
+    const result = await fetch(syndicationUrl, {
+        headers: {
+            "user-agent": genericUserAgent
+        },
+        dispatcher
+    });
+
+    return result;
+}
+
+const requestTweet = async(dispatcher, tweetId, token, cookie) => {
+    const graphqlTweetURL = new URL(graphqlURL);
+
+    let headers = {
+        ...commonHeaders,
+        'content-type': 'application/json',
+        'x-guest-token': token,
+        cookie: `guest_id=${encodeURIComponent(`v1:${token}`)}`
+    }
+
+    if (cookie) {
+        headers = {
+            ...commonHeaders,
+            'content-type': 'application/json',
+            'X-Twitter-Auth-Type': 'OAuth2Session',
+            'x-csrf-token': cookie.values().ct0,
+            cookie
+        }
+    }
+
+    graphqlTweetURL.searchParams.set('variables',
+        JSON.stringify({
+            focalTweetId: tweetId,
+            with_rux_injections: false,
+            rankingMode: "Relevance",
+            includePromotedContent: true,
+            withCommunity: true,
+            withQuickPromoteEligibilityTweetFields: true,
+            withBirdwatchNotes: true,
+            withVoice: true
+        })
+    );
+    graphqlTweetURL.searchParams.set('features', tweetFeatures);
+    graphqlTweetURL.searchParams.set('fieldToggles', tweetFieldToggles);
+
+    let result = await fetch(graphqlTweetURL, { headers, dispatcher });
+    updateCookie(cookie, result.headers);
+
+    // we might have been missing the ct0 cookie, retry
+    if (result.status === 403 && result.headers.get('set-cookie')) {
+        const cookieValues = cookie?.values();
+        if (cookieValues?.ct0) {
+            result = await fetch(graphqlTweetURL, {
+                headers: {
+                    ...headers,
+                    'x-csrf-token': cookieValues.ct0
+                },
+                dispatcher
+            });
+        }
+    }
+
+    return result
+}
+
+const parseCard = (cardOuter) => {
+    const card = JSON.parse(
+      (cardOuter?.legacy?.binding_values[0].value
+       || cardOuter?.binding_values?.unified_card)?.string_value,
+    );
+
+    if (!["video_website", "image_website"].includes(card?.type)
+        || !card?.media_entities
+        || card?.component_objects?.media_1?.type !== "media") {
+      return;
+    }
+
+    const mediaId = card.component_objects?.media_1?.data?.id;
+    return [card.media_entities[mediaId]];
+};
+
+const extractGraphqlMedia = async (thread, dispatcher, id, guestToken, cookie) => {
+    const addInsn = thread?.data?.threaded_conversation_with_injections_v2?.instructions?.find(
+        insn => insn.type === 'TimelineAddEntries'
+    );
+
+    const tweetResult = addInsn?.entries?.find(
+        entry => entry.entryId === `tweet-${id}`
+    )?.content?.itemContent?.tweet_results?.result;
+
+    let tweetTypename = tweetResult?.__typename;
+
+    if (!tweetTypename) {
+        return { error: "fetch.empty" }
+    }
+
+    if (tweetTypename === "TweetUnavailable" || tweetTypename === "TweetTombstone") {
+        const reason = tweetResult?.result?.reason;
+        if (reason === 'Protected') {
+            return { error: "content.post.private" };
+        } else if (reason === "NsfwLoggedOut" || tweetResult?.tombstone?.text?.text?.startsWith('Age-restricted')) {
+            if (!cookie) {
+                return { error: "content.post.age" };
+            }
+
+            const tweet = await requestTweet(dispatcher, id, guestToken, cookie).then(t => t.json());
+            return extractGraphqlMedia(tweet, dispatcher, id, guestToken);
+        }
+    }
+
+    if (!["Tweet", "TweetWithVisibilityResults"].includes(tweetTypename)) {
+        return { error: "content.post.unavailable" }
+    }
+
+    let baseTweet = tweetResult.legacy,
+        repostedTweet = baseTweet?.retweeted_status_result?.result.legacy.extended_entities;
+
+    if (tweetTypename === "TweetWithVisibilityResults") {
+        baseTweet = tweetResult.tweet.legacy;
+        repostedTweet = baseTweet?.retweeted_status_result?.result.tweet.legacy.extended_entities;
+    }
+
+    if (tweetResult.card?.legacy?.binding_values?.length) {
+        return parseCard(tweetResult.card);
+    }
+
+    return (repostedTweet?.media || baseTweet?.extended_entities?.media);
+}
+
+export default async function({ id, index, toGif, dispatcher, alwaysProxy, subtitleLang }) {
+    const cookie = await getCookie('twitter');
+
+    let guestToken = await getGuestToken(dispatcher);
+    if (!guestToken) return { error: "fetch.fail" };
+
+    let tweet = await requestTweet(dispatcher, id, guestToken);
+
+    if ([403, 404, 429].includes(tweet.status)) {
+        // get new token & retry if old one expired
+        if ([403, 429].includes(tweet.status)) {
+            guestToken = await getGuestToken(dispatcher, true);
+        }
+        tweet = await requestTweet(dispatcher, id, guestToken, cookie);
+    }
+
+    let media;
+    try {
+        tweet = await tweet.json();
+        media = await extractGraphqlMedia(tweet, dispatcher, id, guestToken, cookie);
+    } catch {}
+
+    // if graphql requests fail, then resort to tweet embed api
+    if (!media || 'error' in media) {
+        try {
+            tweet = await requestSyndication(dispatcher, id);
+            tweet = await tweet.json();
+
+            if (tweet?.card) {
+                media = parseCard(tweet.card);
+            }
+        } catch {}
+
+        media = tweet?.mediaDetails ?? media;
+    }
+
+    if (!media || 'error' in media) {
+        return { error: media?.error || "fetch.empty" };
+    }
+
+    // check if there's a video at given index (/video/<index>)
+    if (index >= 0 && index < media?.length) {
+        media = [media[index]]
+    }
+
+    const getFileExt = (url) => new URL(url).pathname.split(".", 2)[1];
+
+    const proxyMedia = (url, filename) => createStream({
+        service: "twitter",
+        type: "proxy",
+        url, filename,
+    });
+
+    const extractSubtitles = async (hlsUrl) => {
+        const mainHls = await fetch(hlsUrl).then(r => r.text()).catch(() => {});
+        if (!mainHls) return;
+
+        const subtitle = HLS.parse(mainHls)?.variants[0]?.subtitles?.find(
+            s => s.language.startsWith(subtitleLang)
+        );
+        if (!subtitle) return;
+
+        const subtitleUrl = new URL(subtitle.uri, hlsUrl).toString();
+        const subtitleHls = await fetch(subtitleUrl).then(r => r.text());
+        if (!subtitleHls) return;
+
+        const finalSubtitlePath = HLS.parse(subtitleHls)?.segments?.[0].uri;
+        if (!finalSubtitlePath) return;
+
+        const finalSubtitleUrl = new URL(finalSubtitlePath, hlsUrl).toString();
+
+        return {
+            url: finalSubtitleUrl,
+            language: subtitle.language,
+        };
+    }
+
+    switch (media?.length) {
+        case undefined:
+        case 0:
+            return {
+                error: "fetch.empty"
+            }
+        case 1:
+            const mediaItem = media[0];
+            if (mediaItem.type === "photo") {
+                return {
+                    type: "proxy",
+                    isPhoto: true,
+                    filename: `twitter_${id}.${getFileExt(mediaItem.media_url_https)}`,
+                    urls: `${mediaItem.media_url_https}?name=4096x4096`
+                }
+            }
+
+            let subtitles;
+            let fileMetadata;
+            if (mediaItem.type === "video" && subtitleLang) {
+                const hlsVariant = mediaItem.video_info?.variants?.find(
+                    v => v.content_type === "application/x-mpegURL"
+                );
+                if (hlsVariant) {
+                    const { url, language } = await extractSubtitles(hlsVariant.url) || {};
+                    subtitles = url;
+                    if (language) fileMetadata = { sublanguage: language };
+                }
+            }
+
+            return {
+                type: subtitles || needsFixing(mediaItem) ? "remux" : "proxy",
+                urls: bestQuality(mediaItem.video_info.variants),
+                filename: `twitter_${id}.mp4`,
+                audioFilename: `twitter_${id}_audio`,
+                isGif: mediaItem.type === "animated_gif",
+                subtitles,
+                fileMetadata,
+            }
+        default:
+            const proxyThumb = (url, i) =>
+                proxyMedia(url, `twitter_${id}_${i + 1}.${getFileExt(url)}`);
+
+            const picker = media.map((content, i) => {
+                if (content.type === "photo") {
+                    let url = `${content.media_url_https}?name=4096x4096`;
+                    let proxiedImage = proxyThumb(url, i);
+
+                    if (alwaysProxy) url = proxiedImage;
+
+                    return {
+                        type: "photo",
+                        url,
+                        thumb: proxiedImage,
+                    }
+                }
+
+                let url = bestQuality(content.video_info.variants);
+                const shouldRenderGif = content.type === "animated_gif" && toGif;
+                const videoFilename = `twitter_${id}_${i + 1}.${shouldRenderGif ? "gif" : "mp4"}`;
+
+                let type = "video";
+                if (shouldRenderGif) type = "gif";
+
+                if (needsFixing(content) || shouldRenderGif) {
+                    url = createStream({
+                        service: "twitter",
+                        type: shouldRenderGif ? "gif" : "remux",
+                        url,
+                        filename: videoFilename,
+                    })
+                } else if (alwaysProxy) {
+                    url = proxyMedia(url, videoFilename);
+                }
+
+                return {
+                    type,
+                    url,
+                    thumb: proxyThumb(content.media_url_https, i),
+                }
+            });
+            return { picker };
+    }
+}

api/src/processing/services/vimeo.js

@@ -0,0 +1,244 @@
+import HLS from "hls-parser";
+import { env } from "../../config.js";
+import { merge } from '../../misc/utils.js';
+import { getCookie } from "../cookie/manager.js";
+
+const resolutionMatch = {
+    "3840": 2160,
+    "2732": 1440,
+    "2560": 1440,
+    "2048": 1080,
+    "1920": 1080,
+    "1366": 720,
+    "1280": 720,
+    "960": 480,
+    "640": 360,
+    "426": 240
+}
+
+const genericHeaders = {
+    Accept: 'application/vnd.vimeo.*+json; version=3.4.10',
+    'User-Agent': 'com.vimeo.android.videoapp (Google, Pixel 7a, google, Android 16/36 Version 11.8.1) Kotlin VimeoNetworking/3.12.0',
+    Authorization: 'Basic NzRmYTg5YjgxMWExY2JiNzUwZDg1MjhkMTYzZjQ4YWYyOGEyZGJlMTp4OGx2NFd3QnNvY1lkamI2UVZsdjdDYlNwSDUrdm50YzdNNThvWDcwN1JrenJGZC9tR1lReUNlRjRSVklZeWhYZVpRS0tBcU9YYzRoTGY2Z1dlVkJFYkdJc0dMRHpoZWFZbU0reDRqZ1dkZ1diZmdIdGUrNUM5RVBySlM0VG1qcw==',
+    'Accept-Language': 'en',
+}
+
+let bearer = '';
+
+const getBearer = async (refresh = false) => {
+    const cookie = getCookie('vimeo_bearer')?.values?.()?.access_token;
+    if ((bearer || cookie) && !refresh) return bearer || cookie;
+
+    const oauthResponse = await fetch(
+        'https://api.vimeo.com/oauth/authorize/client',
+        {
+            method: 'POST',
+            body: new URLSearchParams({
+                scope: 'private public create edit delete interact upload purchased stats',
+                grant_type: 'client_credentials',
+            }).toString(),
+            headers: {
+                ...genericHeaders,
+                'Content-Type': 'application/x-www-form-urlencoded',
+            }
+        }
+    )
+    .then(a => a.json())
+    .catch(() => {});
+
+    if (!oauthResponse || !oauthResponse.access_token) {
+        return;
+    }
+
+    return bearer = oauthResponse.access_token;
+}
+
+const requestApiInfo = (bearerToken, videoId, password) => {
+    if (password) {
+        videoId += `:${password}`
+    }
+
+    return fetch(
+        `https://api.vimeo.com/videos/${videoId}`,
+        {
+            headers: {
+                ...genericHeaders,
+                Authorization: `Bearer ${bearerToken}`,
+            }
+        }
+    )
+    .then(a => a.json())
+    .catch(() => {});
+}
+
+const compareQuality = (rendition, requestedQuality) => {
+    const quality = parseInt(rendition);
+    return Math.abs(quality - requestedQuality);
+}
+
+const getDirectLink = async (data, quality, subtitleLang) => {
+    if (!data.files) return;
+
+    const match = data.files
+        .filter(f => f.rendition?.endsWith('p'))
+        .reduce((prev, next) => {
+            const delta = {
+                prev: compareQuality(prev.rendition, quality),
+                next: compareQuality(next.rendition, quality)
+            };
+
+            return delta.prev < delta.next ? prev : next;
+        });
+
+    if (!match) return;
+
+    let subtitles;
+    if (subtitleLang && data.config_url) {
+        const config = await fetch(data.config_url)
+                    .then(r => r.json())
+                    .catch(() => {});
+
+        if (config && config.request?.text_tracks?.length) {
+            subtitles = config.request.text_tracks.find(
+                t => t.lang.startsWith(subtitleLang)
+            );
+            subtitles = new URL(subtitles.url, "https://player.vimeo.com/").toString();
+        }
+    }
+
+    return {
+        urls: match.link,
+        subtitles,
+        filenameAttributes: {
+            resolution: `${match.width}x${match.height}`,
+            qualityLabel: match.rendition,
+            extension: "mp4"
+        },
+        bestAudio: "mp3",
+    }
+}
+
+const getHLS = async (configURL, obj) => {
+    if (!configURL) return;
+
+    const api = await fetch(configURL)
+                    .then(r => r.json())
+                    .catch(() => {});
+    if (!api) return { error: "fetch.fail" };
+
+    if (api.video?.duration > env.durationLimit) {
+        return { error: "content.too_long" };
+    }
+
+    const urlMasterHLS = api.request?.files?.hls?.cdns?.akfire_interconnect_quic?.url;
+    if (!urlMasterHLS) return { error: "fetch.fail" };
+
+    const masterHLS = await fetch(urlMasterHLS)
+                            .then(r => r.text())
+                            .catch(() => {});
+
+    if (!masterHLS) return { error: "fetch.fail" };
+
+    const variants = HLS.parse(masterHLS)?.variants?.sort(
+        (a, b) => Number(b.bandwidth) - Number(a.bandwidth)
+    );
+    if (!variants || variants.length === 0) return { error: "fetch.empty" };
+
+    let bestQuality;
+
+    if (obj.quality < resolutionMatch[variants[0]?.resolution?.width]) {
+        bestQuality = variants.find(v =>
+            (obj.quality === resolutionMatch[v.resolution.width])
+        );
+    }
+
+    if (!bestQuality) bestQuality = variants[0];
+
+    const expandLink = (path) => {
+        return new URL(path, urlMasterHLS).toString();
+    };
+
+    let urls = expandLink(bestQuality.uri);
+
+    const audioPath = bestQuality?.audio[0]?.uri;
+    if (audioPath) {
+        urls = [
+            urls,
+            expandLink(audioPath)
+        ]
+    } else if (obj.isAudioOnly) {
+        return { error: "fetch.empty" };
+    }
+
+    return {
+        urls,
+        isHLS: true,
+        filenameAttributes: {
+            resolution: `${bestQuality.resolution.width}x${bestQuality.resolution.height}`,
+            qualityLabel: `${resolutionMatch[bestQuality.resolution.width]}p`,
+            extension: "mp4"
+        },
+        bestAudio: "mp3",
+    }
+}
+
+export default async function(obj) {
+    let quality = obj.quality === "max" ? 9000 : Number(obj.quality);
+    if (quality < 240) quality = 240;
+    if (!quality || obj.isAudioOnly) quality = 9000;
+
+    const bearerToken = await getBearer();
+    if (!bearerToken) {
+        return { error: "fetch.fail" };
+    }
+
+    let info = await requestApiInfo(bearerToken, obj.id, obj.password);
+    let response;
+
+    // auth error, try to refresh the token
+    if (info?.error_code === 8003) {
+        const newBearer = await getBearer(true);
+        if (!newBearer) {
+            return { error: "fetch.fail" };
+        }
+        info = await requestApiInfo(newBearer, obj.id, obj.password);
+    }
+
+    // if there's still no info, then return a generic error
+    if (!info || info.error_code) {
+        return { error: "fetch.empty" };
+    }
+
+    if (obj.isAudioOnly) {
+        response = await getHLS(info.config_url, { ...obj, quality });
+    }
+
+    if (!response) response = await getDirectLink(info, quality, obj.subtitleLang);
+    if (!response) response = { error: "fetch.empty" };
+
+    if (response.error) {
+        return response;
+    }
+
+    const fileMetadata = {
+        title: info.name,
+        artist: info.user.name,
+    };
+
+    if (response.subtitles) {
+        fileMetadata.sublanguage = obj.subtitleLang;
+    }
+
+    return merge(
+        {
+            fileMetadata,
+            filenameAttributes: {
+                service: "vimeo",
+                id: obj.id,
+                title: fileMetadata.title,
+                author: fileMetadata.artist,
+            }
+        },
+        response
+    );
+}

api/src/processing/services/vk.js

@@ -0,0 +1,152 @@
+import { env } from "../../config.js";
+
+const resolutions = ["2160", "1440", "1080", "720", "480", "360", "240", "144"];
+
+const oauthUrl = "https://oauth.vk.com/oauth/get_anonym_token";
+const apiUrl = "https://api.vk.com/method";
+
+const clientId = "51552953";
+const clientSecret = "qgr0yWwXCrsxA1jnRtRX";
+
+// used in stream/shared.js for accessing media files
+export const vkClientAgent = "com.vk.vkvideo.prod/822 (iPhone, iOS 16.7.7, iPhone10,4, Scale/2.0) SAK/1.119";
+
+const cachedToken = {
+    token: "",
+    expiry: 0,
+    device_id: "",
+};
+
+const getToken = async () => {
+    if (cachedToken.expiry - 10 > Math.floor(new Date().getTime() / 1000)) {
+        return cachedToken.token;
+    }
+
+    const randomDeviceId = crypto.randomUUID().toUpperCase();
+
+    const anonymOauth = new URL(oauthUrl);
+    anonymOauth.searchParams.set("client_id", clientId);
+    anonymOauth.searchParams.set("client_secret", clientSecret);
+    anonymOauth.searchParams.set("device_id", randomDeviceId);
+
+    const oauthResponse = await fetch(anonymOauth.toString(), {
+        headers: {
+            "user-agent": vkClientAgent,
+        }
+    }).then(r => {
+        if (r.status === 200) {
+            return r.json();
+        }
+    });
+
+    if (!oauthResponse) return;
+
+    if (oauthResponse?.token && oauthResponse?.expired_at && typeof oauthResponse?.expired_at === "number") {
+        cachedToken.token = oauthResponse.token;
+        cachedToken.expiry = oauthResponse.expired_at;
+        cachedToken.device_id = randomDeviceId;
+    }
+
+    if (!cachedToken.token) return;
+
+    return cachedToken.token;
+}
+
+const getVideo = async (ownerId, videoId, accessKey) => {
+    const video = await fetch(`${apiUrl}/video.get`, {
+        method: "POST",
+        headers: {
+            "content-type": "application/x-www-form-urlencoded; charset=utf-8",
+            "user-agent": vkClientAgent,
+        },
+        body: new URLSearchParams({
+            anonymous_token: cachedToken.token,
+            device_id: cachedToken.device_id,
+            lang: "en",
+            v: "5.244",
+            videos: `${ownerId}_${videoId}${accessKey ? `_${accessKey}` : ''}`
+        }).toString()
+    })
+    .then(r => {
+        if (r.status === 200) {
+            return r.json();
+        }
+    });
+
+    return video;
+}
+
+export default async function ({ ownerId, videoId, accessKey, quality, subtitleLang }) {
+    const token = await getToken();
+    if (!token) return { error: "fetch.fail" };
+
+    const videoGet = await getVideo(ownerId, videoId, accessKey);
+
+    if (!videoGet || !videoGet.response || videoGet.response.items.length !== 1) {
+        return { error: "fetch.empty" };
+    }
+
+    const video = videoGet.response.items[0];
+
+    if (video.restriction) {
+        const title = video.restriction.title;
+        if (title.endsWith("country") || title.endsWith("region.")) {
+            return { error: "content.video.region" };
+        }
+        if (title === "Processing video") {
+            return { error: "fetch.empty" };
+        }
+        return { error: "content.video.unavailable" };
+    }
+
+    if (!video.files || !video.duration) {
+        return { error: "fetch.fail" };
+    }
+
+    if (video.duration > env.durationLimit) {
+        return { error: "content.too_long" };
+    }
+
+    const userQuality = quality === "max" ? resolutions[0] : quality;
+    let pickedQuality;
+
+    for (const resolution of resolutions) {
+        if (video.files[`mp4_${resolution}`] && +resolution <= +userQuality) {
+            pickedQuality = resolution;
+            break
+        }
+    }
+
+    const url = video.files[`mp4_${pickedQuality}`];
+
+    if (!url) return { error: "fetch.fail" };
+
+    const fileMetadata = {
+        title: video.title.trim(),
+    }
+
+    let subtitles;
+    if (subtitleLang && video.subtitles?.length) {
+        const subtitle = video.subtitles.find(
+            s => s.title.endsWith(".vtt") && s.lang.startsWith(subtitleLang)
+        );
+        if (subtitle) {
+            subtitles = subtitle.url;
+            fileMetadata.sublanguage = subtitleLang;
+        }
+    }
+
+    return {
+        urls: url,
+        subtitles,
+        fileMetadata,
+        filenameAttributes: {
+            service: "vk",
+            id: `${ownerId}_${videoId}${accessKey ? `_${accessKey}` : ''}`,
+            title: fileMetadata.title,
+            resolution: `${pickedQuality}p`,
+            qualityLabel: `${pickedQuality}p`,
+            extension: "mp4"
+        }
+    }
+}

api/src/processing/services/xiaohongshu.js

@@ -0,0 +1,109 @@
+import { resolveRedirectingURL } from "../url.js";
+import { genericUserAgent } from "../../config.js";
+import { createStream } from "../../stream/manage.js";
+
+const https = (url) => {
+    return url.replace(/^http:/i, 'https:');
+}
+
+export default async function ({ id, token, shareType, shareId, h265, isAudioOnly, dispatcher }) {
+    let noteId = id;
+    let xsecToken = token;
+
+    if (!noteId) {
+        const patternMatch = await resolveRedirectingURL(
+            `https://xhslink.com/${shareType}/${shareId}`,
+            dispatcher
+        );
+
+        noteId = patternMatch?.id;
+        xsecToken = patternMatch?.token;
+    }
+
+    if (!noteId || !xsecToken) return { error: "fetch.short_link" };
+
+    const res = await fetch(`https://www.xiaohongshu.com/explore/${noteId}?xsec_token=${xsecToken}`, {
+        headers: {
+            "user-agent": genericUserAgent,
+        },
+        dispatcher,
+    });
+
+    const html = await res.text();
+
+    let note;
+    try {
+        const initialState = html
+            .split('<script>window.__INITIAL_STATE__=')[1]
+            .split('</script>')[0]
+            .replace(/:\s*undefined/g, ":null");
+
+        const data = JSON.parse(initialState);
+
+        const noteInfo = data?.note?.noteDetailMap;
+        if (!noteInfo) throw "no note detail map";
+
+        const currentNote = noteInfo[noteId];
+        if (!currentNote) throw "no current note in detail map";
+
+        note = currentNote.note;
+    } catch {}
+
+    if (!note) return { error: "fetch.empty" };
+
+    const video = note.video;
+    const images = note.imageList;
+
+    const filenameBase = `xiaohongshu_${noteId}`;
+
+    if (video) {
+        const videoFilename = `${filenameBase}.mp4`;
+        const audioFilename = `${filenameBase}_audio`;
+
+        let videoURL;
+
+        if (h265 && !isAudioOnly && video.consumer?.originVideoKey) {
+            videoURL = `https://sns-video-bd.xhscdn.com/${video.consumer.originVideoKey}`;
+        } else {
+            const h264Streams = video.media?.stream?.h264;
+
+            if (h264Streams?.length) {
+                videoURL = h264Streams.reduce((a, b) => Number(a?.videoBitrate) > Number(b?.videoBitrate) ? a : b).masterUrl;
+            }
+        }
+
+        if (!videoURL) return { error: "fetch.empty" };
+
+        return {
+            urls: https(videoURL),
+            filename: videoFilename,
+            audioFilename: audioFilename,
+        }
+    }
+
+    if (!images || images.length === 0) {
+        return { error: "fetch.empty" };
+    }
+
+    if (images.length === 1) {
+        return {
+            isPhoto: true,
+            urls: https(images[0].urlDefault),
+            filename: `${filenameBase}.jpg`,
+        }
+    }
+
+    const picker = images.map((image, i) => {
+        return {
+            type: "photo",
+            url: createStream({
+                service: "xiaohongshu",
+                type: "proxy",
+                url: https(image.urlDefault),
+                filename: `${filenameBase}_${i + 1}.jpg`,
+            })
+        }
+    });
+
+    return { picker };
+}

api/src/processing/services/youtube.js

@@ -0,0 +1,636 @@
+import HLS from "hls-parser";
+
+import { fetch, Request } from "undici";
+import { Innertube, Platform, Session } from "youtubei.js";
+
+import { env } from "../../config.js";
+import { getCookie } from "../cookie/manager.js";
+import { getYouTubeSession } from "../helpers/youtube-session.js";
+
+// https://github.com/LuanRT/YouTube.js/pull/1052
+Platform.shim.eval = async (data, env) => {
+  const properties = [];
+
+  if (env.n) {
+    properties.push(`n: exportedVars.nFunction("${env.n}")`)
+  }
+
+  if (env.sig) {
+    properties.push(`sig: exportedVars.sigFunction("${env.sig}")`)
+  }
+
+  const code = `${data.output}\nreturn { ${properties.join(', ')} }`;
+
+  return new Function(code)();
+}
+
+const PLAYER_REFRESH_PERIOD = 1000 * 60 * 15; // ms
+
+let innertube, lastRefreshedAt;
+
+const codecList = {
+    h264: {
+        videoCodec: "avc1",
+        audioCodec: "mp4a",
+        container: "mp4"
+    },
+    av1: {
+        videoCodec: "av01",
+        audioCodec: "opus",
+        container: "webm"
+    },
+    vp9: {
+        videoCodec: "vp9",
+        audioCodec: "opus",
+        container: "webm"
+    }
+}
+
+const hlsCodecList = {
+    h264: {
+        videoCodec: "avc1",
+        audioCodec: "mp4a",
+        container: "mp4"
+    },
+    vp9: {
+        videoCodec: "vp09",
+        audioCodec: "mp4a",
+        container: "webm"
+    }
+}
+
+const clientsWithNoCipher = ['IOS', 'ANDROID', 'YTSTUDIO_ANDROID', 'YTMUSIC_ANDROID'];
+
+const videoQualities = [144, 240, 360, 480, 720, 1080, 1440, 2160, 4320];
+
+const cloneInnertube = async (customFetch, useSession) => {
+    const shouldRefreshPlayer = lastRefreshedAt + PLAYER_REFRESH_PERIOD < new Date();
+
+    const rawCookie = getCookie('youtube');
+    const cookie = rawCookie?.toString();
+
+    const sessionTokens = getYouTubeSession();
+    const retrieve_player = Boolean(sessionTokens || cookie);
+
+    if (useSession && env.ytSessionServer && !sessionTokens?.potoken) {
+        throw "no_session_tokens";
+    }
+
+    if (!innertube || shouldRefreshPlayer) {
+        innertube = await Innertube.create({
+            fetch: customFetch,
+            retrieve_player,
+            cookie,
+            po_token: useSession ? sessionTokens?.potoken : undefined,
+            visitor_data: useSession ? sessionTokens?.visitor_data : undefined,
+        });
+        lastRefreshedAt = +new Date();
+    }
+
+    const session = new Session(
+        innertube.session.context,
+        innertube.session.api_key,
+        innertube.session.api_version,
+        innertube.session.account_index,
+        innertube.session.config_data,
+        innertube.session.player,
+        cookie,
+        customFetch ?? innertube.session.http.fetch,
+        innertube.session.cache,
+        sessionTokens?.potoken
+    );
+
+    const yt = new Innertube(session);
+    return yt;
+}
+
+const getHlsVariants = async (hlsManifest, dispatcher) => {
+    if (!hlsManifest) {
+        return { error: "youtube.no_hls_streams" };
+    }
+
+    const fetchedHlsManifest =
+        await fetch(hlsManifest, { dispatcher })
+            .then(r => r.status === 200 ? r.text() : undefined)
+            .catch(() => {});
+
+    if (!fetchedHlsManifest) {
+        return { error: "youtube.no_hls_streams" };
+    }
+
+    const variants = HLS.parse(fetchedHlsManifest).variants.sort(
+        (a, b) => Number(b.bandwidth) - Number(a.bandwidth)
+    );
+
+    if (!variants || variants.length === 0) {
+        return { error: "youtube.no_hls_streams" };
+    }
+
+    return variants;
+}
+
+const getSubtitles = async (info, dispatcher, subtitleLang) => {
+    const preferredCap = info.captions.caption_tracks.find(caption =>
+        caption.kind !== 'asr' && caption.language_code.startsWith(subtitleLang)
+    );
+
+    const captionsUrl = preferredCap?.base_url;
+    if (!captionsUrl) return;
+
+    if (!captionsUrl.includes("exp=xpe")) {
+        let url = new URL(captionsUrl);
+        url.searchParams.set('fmt', 'vtt');
+
+        return {
+            url: url.toString(),
+            language: preferredCap.language_code,
+        }
+    }
+
+    // if we have exp=xpe in the url, then captions are
+    // locked down and can't be accessed without a yummy potoken,
+    // so instead we just use subtitles from HLS
+
+    const hlsVariants = await getHlsVariants(
+        info.streaming_data.hls_manifest_url,
+        dispatcher
+    );
+    if (hlsVariants?.error) return;
+
+    // all variants usually have the same set of subtitles
+    const hlsSubtitles = hlsVariants[0]?.subtitles;
+    if (!hlsSubtitles?.length) return;
+
+    const preferredHls = hlsSubtitles.find(
+        subtitle => subtitle.language.startsWith(subtitleLang)
+    );
+
+    if (!preferredHls) return;
+
+    const fetchedHlsSubs =
+        await fetch(preferredHls.uri, { dispatcher })
+            .then(r => r.status === 200 ? r.text() : undefined)
+            .catch(() => {});
+
+    const parsedSubs = HLS.parse(fetchedHlsSubs);
+    if (!parsedSubs) return;
+
+    return {
+        url: parsedSubs.segments[0]?.uri,
+        language: preferredHls.language,
+    }
+}
+
+export default async function (o) {
+    const quality = o.quality === "max" ? 9000 : Number(o.quality);
+
+    let useHLS = o.youtubeHLS;
+    let innertubeClient = o.innertubeClient || env.customInnertubeClient || "IOS";
+
+    // HLS playlists from the iOS client don't contain the av1 video format.
+    if (useHLS && o.codec === "av1") {
+        useHLS = false;
+    }
+
+    if (useHLS) {
+        innertubeClient = "IOS";
+    }
+
+    // iOS client doesn't have adaptive formats of resolution >1080p,
+    // so we use the WEB_EMBEDDED client instead for those cases
+    let useSession =
+        env.ytSessionServer && (
+            (
+                !useHLS
+                && innertubeClient === "IOS"
+                && (
+                    (quality > 1080 && o.codec !== "h264")
+                    || (quality > 1080 && o.codec !== "vp9")
+                )
+            )
+        );
+
+    // we can get subtitles reliably only from the iOS client
+    if (o.subtitleLang) {
+        innertubeClient = "IOS";
+        useSession = false;
+    }
+
+    if (useSession) {
+        innertubeClient = env.ytSessionInnertubeClient || "WEB_EMBEDDED";
+    }
+
+    let yt;
+    try {
+        yt = await cloneInnertube(
+            (input, init) => {
+                const url = typeof input === 'string'
+                          ? new URL(input)
+                          : input instanceof URL
+                            ? input
+                            : new URL(input.url);
+
+                const request = new Request(
+                    url,
+                    input instanceof Platform.shim.Request
+                    ? input : undefined
+                );
+
+                return fetch(request, {
+                    ...init,
+                    dispatcher: o.dispatcher
+                });
+            },
+            useSession
+        );
+    } catch (e) {
+        if (e === "no_session_tokens") {
+            return { error: "youtube.no_session_tokens" };
+        } else if (e.message?.endsWith("decipher algorithm")) {
+            return { error: "youtube.decipher" }
+        } else if (e.message?.includes("refresh access token")) {
+            return { error: "youtube.token_expired" }
+        } else throw e;
+    }
+
+    let info;
+    try {
+        info = await yt.getBasicInfo(o.id, { client: innertubeClient });
+    } catch (e) {
+        if (e?.info) {
+            let errorInfo;
+            try { errorInfo = JSON.parse(e?.info); } catch {}
+
+            if (errorInfo?.reason === "This video is private") {
+                return { error: "content.video.private" };
+            }
+            if (["INVALID_ARGUMENT", "UNAUTHENTICATED"].includes(errorInfo?.error?.status)) {
+                return { error: "youtube.api_error" };
+            }
+        }
+
+        if (e?.message === "This video is unavailable") {
+            return { error: "content.video.unavailable" };
+        }
+
+        return { error: "fetch.fail" };
+    }
+
+    if (!info) return { error: "fetch.fail" };
+
+    const playability = info.playability_status;
+    const basicInfo = info.basic_info;
+
+    switch (playability.status) {
+        case "LOGIN_REQUIRED":
+            if (playability.reason.endsWith("bot")) {
+                return { error: "youtube.login" }
+            }
+            if (playability.reason.endsWith("age") || playability.reason.endsWith("inappropriate for some users.")) {
+                return { error: "content.video.age" }
+            }
+            if (playability?.error_screen?.reason?.text === "Private video") {
+                return { error: "content.video.private" }
+            }
+            break;
+
+        case "UNPLAYABLE":
+            if (playability?.reason?.endsWith("request limit.")) {
+                return { error: "fetch.rate" }
+            }
+            if (playability?.error_screen?.subreason?.text?.endsWith("in your country")) {
+                return { error: "content.video.region" }
+            }
+            if (playability?.error_screen?.reason?.text === "Private video") {
+                return { error: "content.video.private" }
+            }
+            break;
+
+        case "AGE_VERIFICATION_REQUIRED":
+            return { error: "content.video.age" };
+    }
+
+    if (playability.status !== "OK") {
+        return { error: "content.video.unavailable" };
+    }
+
+    if (basicInfo.is_live) {
+        return { error: "content.video.live" };
+    }
+
+    if (basicInfo.duration > env.durationLimit) {
+        return { error: "content.too_long" };
+    }
+
+    // return a critical error if returned video is "Video Not Available"
+    // or a similar stub by youtube
+    if (basicInfo.id !== o.id) {
+        return {
+            error: "fetch.fail",
+            critical: true
+        }
+    }
+
+    const normalizeQuality = res => {
+        const shortestSide = Math.min(res.height, res.width);
+        return videoQualities.find(qual => qual >= shortestSide);
+    }
+
+    let video, audio, subtitles, dubbedLanguage,
+        codec = o.codec || "h264", itag = o.itag;
+
+    if (useHLS) {
+        const variants = await getHlsVariants(
+            info.streaming_data.hls_manifest_url,
+            o.dispatcher
+        );
+
+        if (variants?.error) return variants;
+
+        const matchHlsCodec = codecs => (
+            codecs.includes(hlsCodecList[codec].videoCodec)
+        );
+
+        const best = variants.find(i => matchHlsCodec(i.codecs));
+
+        const preferred = variants.find(i =>
+            matchHlsCodec(i.codecs) && normalizeQuality(i.resolution) === quality
+        );
+
+        let selected = preferred || best;
+
+        if (!selected) {
+            codec = "h264";
+            selected = variants.find(i => matchHlsCodec(i.codecs));
+        }
+
+        if (!selected) {
+            return { error: "youtube.no_matching_format" };
+        }
+
+        audio = selected.audio.find(i => i.isDefault);
+
+        // some videos (mainly those with AI dubs) don't have any tracks marked as default
+        // why? god knows, but we assume that a default track is marked as such in the title
+        if (!audio) {
+            audio = selected.audio.find(i => i.name.endsWith("original"));
+        }
+
+        if (o.dubLang) {
+            const dubbedAudio = selected.audio.find(i =>
+                i.language?.startsWith(o.dubLang)
+            );
+
+            if (dubbedAudio && !dubbedAudio.isDefault) {
+                dubbedLanguage = dubbedAudio.language;
+                audio = dubbedAudio;
+            }
+        }
+
+        selected.audio = [];
+        selected.subtitles = [];
+        video = selected;
+    } else {
+        // i miss typescript so bad
+        const sorted_formats = {
+            h264: {
+                video: [],
+                audio: [],
+                bestVideo: undefined,
+                bestAudio: undefined,
+            },
+            vp9: {
+                video: [],
+                audio: [],
+                bestVideo: undefined,
+                bestAudio: undefined,
+            },
+            av1: {
+                video: [],
+                audio: [],
+                bestVideo: undefined,
+                bestAudio: undefined,
+            },
+        }
+
+        const checkFormat = (format, pCodec) => format.content_length &&
+            (format.mime_type.includes(codecList[pCodec].videoCodec)
+                || format.mime_type.includes(codecList[pCodec].audioCodec));
+
+        // sort formats & weed out bad ones
+        info.streaming_data.adaptive_formats.sort((a, b) =>
+            Number(b.bitrate) - Number(a.bitrate)
+        ).forEach(format => {
+            Object.keys(codecList).forEach(yCodec => {
+                const matchingItag = slot => !itag?.[slot] || itag[slot] === format.itag;
+                const sorted = sorted_formats[yCodec];
+                const goodFormat = checkFormat(format, yCodec);
+                if (!goodFormat) return;
+
+                if (format.has_video && matchingItag('video')) {
+                    sorted.video.push(format);
+                    if (!sorted.bestVideo)
+                        sorted.bestVideo = format;
+                }
+
+                if (format.has_audio && matchingItag('audio')) {
+                    sorted.audio.push(format);
+                    if (!sorted.bestAudio)
+                        sorted.bestAudio = format;
+                }
+            })
+        });
+
+        const noBestMedia = () => {
+            const vid = sorted_formats[codec]?.bestVideo;
+            const aud = sorted_formats[codec]?.bestAudio;
+            return (!vid && !o.isAudioOnly) || (!aud && o.isAudioOnly)
+        };
+
+        if (noBestMedia()) {
+            if (codec === "av1") codec = "vp9";
+            else if (codec === "vp9") codec = "av1";
+
+            // if there's no higher quality fallback, then use h264
+            if (noBestMedia()) codec = "h264";
+        }
+
+        // if there's no proper combo of av1, vp9, or h264, then give up
+        if (noBestMedia()) {
+            return { error: "youtube.no_matching_format" };
+        }
+
+        audio = sorted_formats[codec].bestAudio;
+
+        if (audio?.audio_track && !audio?.is_original) {
+            audio = sorted_formats[codec].audio.find(i =>
+                i?.is_original
+            );
+        }
+
+        if (o.dubLang) {
+            const dubbedAudio = sorted_formats[codec].audio.find(i =>
+                i.language?.startsWith(o.dubLang) && i.audio_track
+            );
+
+            if (dubbedAudio && !dubbedAudio?.is_original) {
+                audio = dubbedAudio;
+                dubbedLanguage = dubbedAudio.language;
+            }
+        }
+
+        if (!o.isAudioOnly) {
+            const qual = (i) => {
+                return normalizeQuality({
+                    width: i.width,
+                    height: i.height,
+                })
+            }
+
+            const bestQuality = qual(sorted_formats[codec].bestVideo);
+            const useBestQuality = quality >= bestQuality;
+
+            video = useBestQuality
+                ? sorted_formats[codec].bestVideo
+                : sorted_formats[codec].video.find(i => qual(i) === quality);
+
+            if (!video) video = sorted_formats[codec].bestVideo;
+        }
+
+        if (o.subtitleLang && !o.isAudioOnly && info.captions?.caption_tracks?.length) {
+            const videoSubtitles = await getSubtitles(info, o.dispatcher, o.subtitleLang);
+            if (videoSubtitles) {
+                subtitles = videoSubtitles;
+            }
+        }
+    }
+
+    if (video?.drm_families || audio?.drm_families) {
+        return { error: "youtube.drm" };
+    }
+
+    const fileMetadata = {
+        title: basicInfo.title.trim(),
+        artist: basicInfo.author.replace("- Topic", "").trim()
+    }
+
+    if (basicInfo?.short_description?.startsWith("Provided to YouTube by")) {
+        const descItems = basicInfo.short_description.split("\n\n", 5);
+
+        if (descItems.length === 5) {
+            fileMetadata.album = descItems[2];
+            fileMetadata.copyright = descItems[3];
+            if (descItems[4].startsWith("Released on:")) {
+                fileMetadata.date = descItems[4].replace("Released on: ", '').trim();
+            }
+        }
+    }
+
+    if (subtitles) {
+        fileMetadata.sublanguage = subtitles.language;
+    }
+
+    const filenameAttributes = {
+        service: "youtube",
+        id: o.id,
+        title: fileMetadata.title,
+        author: fileMetadata.artist,
+        youtubeDubName: dubbedLanguage || false,
+    }
+
+    itag = {
+        video: video?.itag,
+        audio: audio?.itag
+    };
+
+    const originalRequest = {
+        ...o,
+        dispatcher: undefined,
+        itag,
+        innertubeClient
+    };
+
+    if (audio && o.isAudioOnly) {
+        let bestAudio = codec === "h264" ? "m4a" : "opus";
+        let urls = audio.url;
+
+        if (useHLS) {
+            bestAudio = "mp3";
+            urls = audio.uri;
+        }
+
+        if (!clientsWithNoCipher.includes(innertubeClient) && innertube) {
+            urls = await audio.decipher(innertube.session.player);
+        }
+
+        let cover = `https://i.ytimg.com/vi/${o.id}/maxresdefault.jpg`;
+        const testMaxCover = await fetch(cover, { dispatcher: o.dispatcher })
+            .then(r => r.status === 200)
+            .catch(() => {});
+
+        if (!testMaxCover) {
+            cover = basicInfo.thumbnail?.[0]?.url;
+        }
+
+        return {
+            type: "audio",
+            isAudioOnly: true,
+            urls,
+            filenameAttributes,
+            fileMetadata,
+            bestAudio,
+            isHLS: useHLS,
+            originalRequest,
+
+            cover,
+            cropCover: basicInfo.author.endsWith("- Topic"),
+        }
+    }
+
+    if (video && audio) {
+        let resolution;
+
+        if (useHLS) {
+            resolution = normalizeQuality(video.resolution);
+            filenameAttributes.resolution = `${video.resolution.width}x${video.resolution.height}`;
+            filenameAttributes.extension = o.container === "auto" ? hlsCodecList[codec].container : o.container;
+
+            video = video.uri;
+            audio = audio.uri;
+        } else {
+            resolution = normalizeQuality({
+                width: video.width,
+                height: video.height,
+            });
+
+            filenameAttributes.resolution = `${video.width}x${video.height}`;
+            filenameAttributes.extension = o.container === "auto" ? codecList[codec].container : o.container;
+
+            if (!clientsWithNoCipher.includes(innertubeClient) && innertube) {
+                video = await video.decipher(innertube.session.player);
+                audio = await audio.decipher(innertube.session.player);
+            } else {
+                video = video.url;
+                audio = audio.url;
+            }
+        }
+
+        filenameAttributes.qualityLabel = `${resolution}p`;
+        filenameAttributes.youtubeFormat = codec;
+
+        return {
+            type: "merge",
+            urls: [
+                video,
+                audio,
+            ],
+            subtitles: subtitles?.url,
+            filenameAttributes,
+            fileMetadata,
+            isHLS: useHLS,
+            originalRequest
+        }
+    }
+
+    return { error: "youtube.no_matching_format" };
+}

api/src/processing/url.js

@@ -1,6 +1,10 @@
-import { services } from "../config.js";
+import psl from "@imput/psl";
 import { strict as assert } from "node:assert";
-import psl from "psl";
+
+import { env } from "../config.js";
+import { services } from "./service-config.js";
+import { getRedirectingURL } from "../misc/utils.js";
+import { friendlyServiceName } from "./service-alias.js";
 
 function aliasURL(url) {
     assert(url instanceof URL);
@@ -13,7 +17,7 @@ function aliasURL(url) {
             if (url.pathname.startsWith('/live/') || url.pathname.startsWith('/shorts/')) {
                 url.pathname = '/watch';
                 // parts := ['', 'live' || 'shorts', id, ...rest]
-                url.search = `?v=${encodeURIComponent(parts[2])}`
+                url.search = `?v=${encodeURIComponent(parts[2])}`;
             }
             break;
 
@@ -39,7 +43,7 @@ function aliasURL(url) {
         case "fixvx":
         case "x":
             if (services.twitter.altDomains.includes(url.hostname)) {
-                url.hostname = 'twitter.com'
+                url.hostname = 'twitter.com';
             }
             break;
 
@@ -54,24 +58,26 @@ function aliasURL(url) {
                 url = new URL(`https://bilibili.com/_tv${url.pathname}`);
             }
             break;
+
         case "b23":
             if (url.hostname === 'b23.tv' && parts.length === 2) {
-                url = new URL(`https://bilibili.com/_shortLink/${parts[1]}`)
+                url = new URL(`https://bilibili.com/_shortLink/${parts[1]}`);
             }
             break;
 
         case "dai":
             if (url.hostname === 'dai.ly' && parts.length === 2) {
-                url = new URL(`https://dailymotion.com/video/${parts[1]}`)
+                url = new URL(`https://dailymotion.com/video/${parts[1]}`);
             }
+            break;
 
         case "facebook":
         case "fb":
             if (url.searchParams.get('v')) {
-                url = new URL(`https://web.facebook.com/user/videos/${url.searchParams.get('v')}`)
+                url = new URL(`https://web.facebook.com/user/videos/${url.searchParams.get('v')}`);
             }
             if (url.hostname === 'fb.watch') {
-                url = new URL(`https://web.facebook.com/_shortLink/${parts[1]}`)
+                url = new URL(`https://web.facebook.com/_shortLink/${parts[1]}`);
             }
             break;
 
@@ -80,9 +86,40 @@ function aliasURL(url) {
                 url.hostname = 'instagram.com';
             }
             break;
+
+        case "vk":
+        case "vkvideo":
+            if (services.vk.altDomains.includes(url.hostname)) {
+                url.hostname = 'vk.com';
+            }
+            if (url.searchParams.get('z')) {
+                url = new URL(`https://vk.com/${url.searchParams.get('z')}`);
+            }
+            break;
+
+        case "xhslink":
+            if (url.hostname === 'xhslink.com' && parts.length === 3) {
+                url = new URL(`https://www.xiaohongshu.com/${parts[1]}/${parts[2]}`);
+            }
+            break;
+
+        case "loom":
+            const idPart = parts[parts.length - 1];
+            if (idPart.length > 32) {
+                url.pathname = `/share/${idPart.slice(-32)}`;
+            }
+            break;
+
+        case "redd":
+            /* reddit short video links can be treated by changing https://v.redd.it/<id>
+            to https://reddit.com/video/<id>.*/
+            if (url.hostname === "v.redd.it" && parts.length === 2) {
+                url = new URL(`https://www.reddit.com/video/${parts[1]}`);
+            }
+            break;
     }
 
-    return url
+    return url;
 }
 
 function cleanURL(url) {
@@ -102,31 +139,42 @@ function cleanURL(url) {
             break;
         case "vk":
             if (url.pathname.includes('/clip') && url.searchParams.get('z')) {
-                limitQuery('z')
+                limitQuery('z');
             }
             break;
         case "youtube":
             if (url.searchParams.get('v')) {
-                limitQuery('v')
+                limitQuery('v');
             }
             break;
+        case "bilibili":
         case "rutube":
             if (url.searchParams.get('p')) {
-                limitQuery('p')
+                limitQuery('p');
+            }
+            break;
+        case "twitter":
+            if (url.searchParams.get('post_id')) {
+                limitQuery('post_id');
+            }
+            break;
+        case "xiaohongshu":
+            if (url.searchParams.get('xsec_token')) {
+                limitQuery('xsec_token');
             }
             break;
     }
 
     if (stripQuery) {
-        url.search = ''
+        url.search = '';
     }
 
-    url.username = url.password = url.port = url.hash = ''
+    url.username = url.password = url.port = url.hash = '';
 
     if (url.pathname.endsWith('/'))
         url.pathname = url.pathname.slice(0, -1);
 
-    return url
+    return url;
 }
 
 function getHostIfValid(url) {
@@ -152,15 +200,24 @@ export function normalizeURL(url) {
     );
 }
 
-export function extract(url) {
+export function extract(url, enabledServices = env.enabledServices) {
     if (!(url instanceof URL)) {
         url = new URL(url);
     }
 
     const host = getHostIfValid(url);
 
-    if (!host || !services[host].enabled) {
-        return null;
+    if (!host) {
+        return { error: "link.invalid" };
+    }
+
+    if (!enabledServices.has(host)) {
+        // show a different message when youtube is disabled on official instances
+        // as it only happens when shit hits the fan
+        if (new URL(env.apiURL).hostname.endsWith(".imput.net") && host === "youtube") {
+            return { error: "youtube.temporary_disabled" };
+        }
+        return { error: "service.disabled" };
     }
 
     let patternMatch;
@@ -175,8 +232,27 @@ export function extract(url) {
     }
 
     if (!patternMatch) {
-        return null;
+        return {
+            error: "link.unsupported",
+            context: {
+                service: friendlyServiceName(host),
+            }
+        };
     }
 
     return { host, patternMatch };
-}
+}
+
+export async function resolveRedirectingURL(url, dispatcher, headers) {
+    const originalService = getHostIfValid(normalizeURL(url));
+    if (!originalService) return;
+
+    const canonicalURL = await getRedirectingURL(url, dispatcher, headers);
+    if (!canonicalURL) return;
+
+    const { host, patternMatch } = extract(normalizeURL(canonicalURL));
+
+    if (host === originalService) {
+        return patternMatch;
+    }
+}

api/src/security/api-keys.js

@@ -0,0 +1,266 @@
+import { env } from "../config.js";
+import { Green, Yellow } from "../misc/console-text.js";
+import ip from "ipaddr.js";
+import * as cluster from "../misc/cluster.js";
+import { FileWatcher } from "../misc/file-watcher.js";
+
+// this function is a modified variation of code
+// from https://stackoverflow.com/a/32402438/14855621
+const generateWildcardRegex = rule => {
+    var escapeRegex = (str) => str.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1");
+    return new RegExp("^" + rule.split("*").map(escapeRegex).join(".*") + "$");
+}
+
+const UUID_REGEX = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/;
+
+let keys = {}, reader = null;
+
+const ALLOWED_KEYS = new Set(['name', 'ips', 'userAgents', 'limit', 'allowedServices']);
+
+/* Expected format pseudotype:
+** type KeyFileContents = Record<
+**    UUIDv4String,
+**    {
+**        name?: string,
+**        limit?: number | "unlimited",
+**        ips?: CIDRString[],
+**        userAgents?: string[],
+**        allowedServices?: "all" | string[],
+**    }
+** >;
+*/
+
+const validateKeys = (input) => {
+    if (typeof input !== 'object' || input === null) {
+        throw "input is not an object";
+    }
+
+    if (Object.keys(input).some(x => !UUID_REGEX.test(x))) {
+        throw "key file contains invalid key(s)";
+    }
+
+    Object.values(input).forEach(details => {
+        if (typeof details !== 'object' || details === null) {
+            throw "some key(s) are incorrectly configured";
+        }
+
+        const unexpected_key = Object.keys(details).find(k => !ALLOWED_KEYS.has(k));
+        if (unexpected_key) {
+            throw "detail object contains unexpected key: " + unexpected_key;
+        }
+
+        if (details.limit && details.limit !== 'unlimited') {
+            if (typeof details.limit !== 'number')
+                throw "detail object contains invalid limit (not a number)";
+            else if (details.limit < 1)
+                throw "detail object contains invalid limit (not a positive number)";
+        }
+
+        if (details.ips) {
+            if (!Array.isArray(details.ips))
+                throw "details object contains value for `ips` which is not an array";
+
+            const invalid_ip = details.ips.find(
+                addr => typeof addr !== 'string' || (!ip.isValidCIDR(addr) && !ip.isValid(addr))
+            );
+
+            if (invalid_ip) {
+                throw "`ips` in details contains an invalid IP or CIDR range: " + invalid_ip;
+            }
+        }
+
+        if (details.userAgents) {
+            if (!Array.isArray(details.userAgents))
+                throw "details object contains value for `userAgents` which is not an array";
+
+            const invalid_ua = details.userAgents.find(ua => typeof ua !== 'string');
+            if (invalid_ua) {
+                throw "`userAgents` in details contains an invalid user agent: " + invalid_ua;
+            }
+        }
+
+        if (details.allowedServices) {
+            if (Array.isArray(details.allowedServices)) {
+                const invalid_services = details.allowedServices.some(
+                    service => !env.allServices.has(service)
+                );
+                if (invalid_services) {
+                    throw "`allowedServices` in details contains an invalid service";
+                }
+            } else if (details.allowedServices !== "all") {
+                throw "details object contains value for `allowedServices` which is not an array or `all`";
+            }
+        }
+    });
+}
+
+const formatKeys = (keyData) => {
+    const formatted = {};
+
+    for (let key in keyData) {
+        const data = keyData[key];
+        key = key.toLowerCase();
+
+        formatted[key] = {};
+
+        if (data.limit) {
+            if (data.limit === "unlimited") {
+                data.limit = Infinity;
+            }
+
+            formatted[key].limit = data.limit;
+        }
+
+        if (data.ips) {
+            formatted[key].ips = data.ips.map(addr => {
+                if (ip.isValid(addr)) {
+                    const parsed = ip.parse(addr);
+                    const range = parsed.kind() === 'ipv6' ? 128 : 32;
+                    return [ parsed, range ];
+                }
+
+                return ip.parseCIDR(addr);
+            });
+        }
+
+        if (data.userAgents) {
+            formatted[key].userAgents = data.userAgents.map(generateWildcardRegex);
+        }
+
+        if (data.allowedServices) {
+            if (Array.isArray(data.allowedServices)) {
+                formatted[key].allowedServices = new Set(data.allowedServices);
+            } else {
+                formatted[key].allowedServices = data.allowedServices;
+            }
+        }
+    }
+
+    return formatted;
+}
+
+const updateKeys = (newKeys) => {
+    validateKeys(newKeys);
+
+    cluster.broadcast({ api_keys: newKeys });
+
+    keys = formatKeys(newKeys);
+}
+
+const loadRemoteKeys = async (source) => {
+    updateKeys(
+        await fetch(source).then(a => a.json())
+    );
+}
+
+const loadLocalKeys = async () => {
+    updateKeys(
+        JSON.parse(await reader.read())
+    );
+}
+
+const wrapLoad = (url, initial = false) => {
+    let load = loadRemoteKeys.bind(null, url);
+
+    if (url.protocol === 'file:') {
+        if (initial) {
+            reader = FileWatcher.fromFileProtocol(url);
+            reader.on('file-updated', () => wrapLoad(url));
+        }
+
+        load = loadLocalKeys;
+    }
+
+    load().then(() => {
+        if (initial || reader) {
+            console.log(`${Green('[✓]')} api keys loaded successfully!`)
+        }
+    })
+    .catch((e) => {
+        console.error(`${Yellow('[!]')} Failed loading API keys at ${new Date().toISOString()}.`);
+        console.error('Error:', e);
+    })
+}
+
+const err = (reason) => ({ success: false, error: reason });
+
+export const validateAuthorization = (req) => {
+    const authHeader = req.get('Authorization');
+
+    if (typeof authHeader !== 'string') {
+        return err("missing");
+    }
+
+    const [ authType, keyString ] = authHeader.split(' ', 2);
+    if (authType.toLowerCase() !== 'api-key') {
+        return err("not_api_key");
+    }
+
+    if (!UUID_REGEX.test(keyString) || `${authType} ${keyString}` !== authHeader) {
+        return err("invalid");
+    }
+
+    const matchingKey = keys[keyString.toLowerCase()];
+    if (!matchingKey) {
+        return err("not_found");
+    }
+
+    if (matchingKey.ips) {
+        let addr;
+        try {
+            addr = ip.parse(req.ip);
+        } catch {
+            return err("invalid_ip");
+        }
+
+        const ip_allowed = matchingKey.ips.some(
+            ([ allowed, size ]) => {
+                return addr.kind() === allowed.kind()
+                        && addr.match(allowed, size);
+            }
+        );
+
+        if (!ip_allowed) {
+            return err("ip_not_allowed");
+        }
+    }
+
+    if (matchingKey.userAgents) {
+        const userAgent = req.get('User-Agent');
+        if (!matchingKey.userAgents.some(regex => regex.test(userAgent))) {
+            return err("ua_not_allowed");
+        }
+    }
+
+    req.rateLimitKey = keyString.toLowerCase();
+    req.rateLimitMax = matchingKey.limit;
+
+    return { success: true };
+}
+
+export const setup = (url) => {
+    if (cluster.isPrimary) {
+        wrapLoad(url, true);
+        if (env.keyReloadInterval > 0 && url.protocol !== 'file:') {
+            setInterval(() => wrapLoad(url), env.keyReloadInterval * 1000);
+        }
+    } else if (cluster.isWorker) {
+        process.on('message', (message) => {
+            if ('api_keys' in message) {
+                updateKeys(message.api_keys);
+            }
+        });
+    }
+}
+
+export const getAllowedServices = (key) => {
+    if (typeof key !== "string") return;
+
+    const allowedServices = keys[key.toLowerCase()]?.allowedServices;
+    if (!allowedServices) return;
+
+    if (allowedServices === "all") {
+        return env.allServices;
+    }
+    return allowedServices;
+}

api/src/security/jwt.js

@@ -0,0 +1,66 @@
+import { nanoid } from "nanoid";
+import { createHmac } from "crypto";
+
+import { env } from "../config.js";
+
+const toBase64URL = (b) => Buffer.from(b).toString("base64url");
+const fromBase64URL = (b) => Buffer.from(b, "base64url").toString();
+
+const makeHmac = (data) => {
+    return createHmac("sha256", env.jwtSecret)
+            .update(data)
+            .digest("base64url");
+}
+
+const sign = (header, payload) =>
+        makeHmac(`${header}.${payload}`);
+
+const getIPHash = (ip) =>
+        makeHmac(ip).slice(0, 8);
+
+const generate = (ip) => {
+    const exp = Math.floor(new Date().getTime() / 1000) + env.jwtLifetime;
+
+    const header = toBase64URL(JSON.stringify({
+        alg: "HS256",
+        typ: "JWT"
+    }));
+
+    const payload = toBase64URL(JSON.stringify({
+        jti: nanoid(8),
+        sub: getIPHash(ip),
+        exp,
+    }));
+
+    const signature = sign(header, payload);
+
+    return {
+        token: `${header}.${payload}.${signature}`,
+        exp: env.jwtLifetime - 2,
+    };
+}
+
+const verify = (jwt, ip) => {
+    const [header, payload, signature] = jwt.split(".", 3);
+    const timestamp = Math.floor(new Date().getTime() / 1000);
+
+    if ([header, payload, signature].join('.') !== jwt) {
+        return false;
+    }
+
+    const verifySignature = sign(header, payload);
+
+    if (verifySignature !== signature) {
+        return false;
+    }
+
+    const data = JSON.parse(fromBase64URL(payload));
+
+    return getIPHash(ip) === data.sub
+            && timestamp <= data.exp;
+}
+
+export default {
+    generate,
+    verify,
+}

api/src/security/secrets.js

@@ -0,0 +1,62 @@
+import cluster from "node:cluster";
+import { createHmac, randomBytes } from "node:crypto";
+
+const generateSalt = () => {
+    if (cluster.isPrimary)
+        return randomBytes(64);
+
+    return null;
+}
+
+let rateSalt = generateSalt();
+let streamSalt = generateSalt();
+
+export const syncSecrets = () => {
+    return new Promise((resolve, reject) => {
+        if (cluster.isPrimary) {
+            let remaining = Object.values(cluster.workers).length;
+            const handleReady = (worker, m) => {
+                if (m.ready)
+                    worker.send({ rateSalt, streamSalt });
+
+                if (!--remaining)
+                    resolve();
+            }
+
+            for (const worker of Object.values(cluster.workers)) {
+                worker.once(
+                    'message',
+                    (m) => handleReady(worker, m)
+                );
+            }
+        } else if (cluster.isWorker) {
+            if (rateSalt || streamSalt)
+                return reject();
+
+            process.send({ ready: true });
+            process.once('message', (message) => {
+                if (rateSalt || streamSalt)
+                    return reject();
+
+                if (message.rateSalt && message.streamSalt) {
+                    streamSalt = Buffer.from(message.streamSalt);
+                    rateSalt = Buffer.from(message.rateSalt);
+                    resolve();
+                }
+            });
+        } else reject();
+    });
+}
+
+
+export const hashHmac = (value, type) => {
+    let salt;
+    if (type === 'rate')
+        salt = rateSalt;
+    else if (type === 'stream')
+        salt = streamSalt;
+    else
+        throw "unknown salt";
+
+    return createHmac("sha256", salt).update(value).digest();
+}

api/src/security/turnstile.js

@@ -0,0 +1,19 @@
+import { env } from "../config.js";
+
+export const verifyTurnstileToken = async (turnstileResponse, ip) => {
+    const result = await fetch("https://challenges.cloudflare.com/turnstile/v0/siteverify", {
+        method: "POST",
+        headers: {
+            "Content-Type": "application/json",
+        },
+        body: JSON.stringify({
+            secret: env.turnstileSecret,
+            response: turnstileResponse,
+            remoteip: ip,
+        }),
+    })
+    .then(r => r.json())
+    .catch(() => {});
+
+    return !!result?.success;
+}

api/src/store/base-store.js

@@ -0,0 +1,48 @@
+const _stores = new Set();
+
+export class Store {
+    id;
+
+    constructor(name) {
+        name = name.toUpperCase();
+
+        if (_stores.has(name))
+            throw `${name} store already exists`;
+        _stores.add(name);
+
+        this.id = name;
+    }
+
+    async _has(_key) { await Promise.reject("needs implementation"); }
+    has(key) {
+        if (typeof key !== 'string') {
+            key = key.toString();
+        }
+
+        return this._has(key);
+    }
+
+    async _get(_key) { await Promise.reject("needs implementation"); }
+    async get(key) {
+        if (typeof key !== 'string') {
+            key = key.toString();
+        }
+
+        const val = await this._get(key);
+        if (val === null)
+            return null;
+
+        return val;
+    }
+
+    async _set(_key, _val, _exp_sec = -1) { await Promise.reject("needs implementation") }
+    set(key, val, exp_sec = -1) {
+        if (typeof key !== 'string') {
+            key = key.toString();
+        }
+
+        exp_sec = Math.round(exp_sec);
+
+        return this._set(key, val, exp_sec);
+    }
+};

api/src/store/memory-store.js

@@ -0,0 +1,77 @@
+import { MinPriorityQueue } from '@datastructures-js/priority-queue';
+import { Store } from './base-store.js';
+
+// minimum delay between sweeps to avoid repeatedly
+// sweeping entries close in proximity one by one.
+const MIN_THRESHOLD_MS = 2500;
+
+export default class MemoryStore extends Store {
+    #store = new Map();
+    #timeouts = new MinPriorityQueue/*<{ t: number, k: unknown }>*/((obj) => obj.t);
+    #nextSweep = { id: null, t: null };
+
+    constructor(name) {
+        super(name);
+    }
+
+    _has(key) {
+        return this.#store.has(key);
+    }
+
+    _get(key) {
+        const val = this.#store.get(key);
+
+        return val === undefined ? null : val;
+    }
+
+    _set(key, val, exp_sec = -1) {
+        if (this.#store.has(key)) {
+            this.#timeouts.remove(o => o.k === key);
+        }
+
+        if (exp_sec > 0) {
+            const exp = 1000 * exp_sec;
+            const timeout_at = +new Date() + exp;
+
+            this.#timeouts.enqueue({ k: key, t: timeout_at });
+        }
+
+        this.#store.set(key, val);
+        this.#reschedule();
+    }
+
+    #reschedule() {
+        const current_time = new Date().getTime();
+        const time = this.#timeouts.front()?.t;
+        if (!time) {
+            return;
+        } else if (time < current_time) {
+            return this.#sweepNow();
+        }
+
+        const sweep = this.#nextSweep;
+        if (sweep.id === null || sweep.t > time) {
+            if (sweep.id) {
+                clearTimeout(sweep.id);
+            }
+
+            sweep.t = time;
+            sweep.id = setTimeout(
+                () => this.#sweepNow(),
+                Math.max(MIN_THRESHOLD_MS, time - current_time)
+            );
+            sweep.id.unref();
+        }
+    }
+
+    #sweepNow() {
+        while (this.#timeouts.front()?.t < new Date().getTime()) {
+            const item = this.#timeouts.dequeue();
+            this.#store.delete(item.k);
+        }
+
+        this.#nextSweep.id = null;
+        this.#nextSweep.t = null;
+        this.#reschedule();
+    }
+}

api/src/store/redis-ratelimit.js

@@ -0,0 +1,19 @@
+import { env } from "../config.js";
+
+let client, redis, redisLimiter;
+
+export const createStore = async (name) => {
+    if (!env.redisURL) return;
+
+    if (!client) {
+        redis = await import('redis');
+        redisLimiter = await import('rate-limit-redis');
+        client = redis.createClient({ url: env.redisURL });
+        await client.connect();
+    }
+
+    return new redisLimiter.default({
+        prefix: `RL${name}_`,
+        sendCommand: (...args) => client.sendCommand(args),
+    });
+}

api/src/store/redis-store.js

@@ -0,0 +1,64 @@
+import { commandOptions, createClient } from "redis";
+import { env } from "../config.js";
+import { Store } from "./base-store.js";
+
+export default class RedisStore extends Store {
+    #client = createClient({
+        url: env.redisURL,
+    });
+    #connected;
+
+    constructor(name) {
+        super(name);
+        this.#connected = this.#client.connect();
+    }
+
+    #keyOf(key) {
+        return this.id + '_' + key;
+    }
+
+    async _has(key) {
+        await this.#connected;
+
+        return this.#client.hExists(key);
+    }
+
+    async _get(key) {
+        await this.#connected;
+
+        const valueType = await this.#client.get(this.#keyOf(key) + '_t');
+        const value = await this.#client.get(
+            commandOptions({ returnBuffers: true }),
+            this.#keyOf(key)
+        );
+
+        if (!value) {
+            return null;
+        }
+
+        if (valueType === 'b')
+            return value;
+        else
+            return JSON.parse(value);
+    }
+
+    async _set(key, val, exp_sec = -1) {
+        await this.#connected;
+
+        const options = exp_sec > 0 ? { EX: exp_sec } : undefined;
+
+        if (val instanceof Buffer) {
+            await this.#client.set(
+                this.#keyOf(key) + '_t',
+                'b',
+                options
+            );
+        }
+
+        await this.#client.set(
+            this.#keyOf(key),
+            val,
+            options
+        );
+    }
+}

api/src/store/store.js

@@ -0,0 +1,10 @@
+import { env } from '../config.js';
+
+let _export;
+if (env.redisURL) {
+    _export = await import('./redis-store.js');
+} else {
+    _export = await import('./memory-store.js');
+}
+
+export default _export.default;

api/src/stream/ffmpeg.js

@@ -0,0 +1,215 @@
+import ffmpeg from "ffmpeg-static";
+import { spawn } from "child_process";
+import { create as contentDisposition } from "content-disposition-header";
+
+import { env } from "../config.js";
+import { destroyInternalStream } from "./manage.js";
+import { hlsExceptions } from "../processing/service-config.js";
+import { closeResponse, pipe, estimateTunnelLength, estimateAudioMultiplier } from "./shared.js";
+
+const metadataTags = new Set([
+    "album",
+    "composer",
+    "genre",
+    "copyright",
+    "title",
+    "artist",
+    "album_artist",
+    "track",
+    "date",
+    "sublanguage"
+]);
+
+const convertMetadataToFFmpeg = (metadata) => {
+    const args = [];
+
+    for (const [ name, value ] of Object.entries(metadata)) {
+        if (metadataTags.has(name)) {
+            if (name === "sublanguage") {
+                args.push('-metadata:s:s:0', `language=${value}`);
+                continue;
+            }
+            args.push('-metadata', `${name}=${value.replace(/[\u0000-\u0009]/g, '')}`); // skipcq: JS-0004
+        } else {
+            throw `${name} metadata tag is not supported.`;
+        }
+    }
+
+    return args;
+}
+
+const killProcess = (p) => {
+    p?.kill('SIGTERM'); // ask the process to terminate itself gracefully
+
+    setTimeout(() => {
+        if (p?.exitCode === null)
+            p?.kill('SIGKILL'); // brutally murder the process if it didn't quit
+    }, 5000);
+}
+
+const getCommand = (args) => {
+    if (typeof env.processingPriority === 'number' && !isNaN(env.processingPriority)) {
+        return ['nice', ['-n', env.processingPriority.toString(), ffmpeg, ...args]]
+    }
+    return [ffmpeg, args]
+}
+
+const render = async (res, streamInfo, ffargs, estimateMultiplier) => {
+    let process;
+    const urls = Array.isArray(streamInfo.urls) ? streamInfo.urls : [streamInfo.urls];
+    const shutdown = () => (
+        killProcess(process),
+        closeResponse(res),
+        urls.map(destroyInternalStream)
+    );
+
+    try {
+        const args = [
+            '-loglevel', '-8',
+            ...ffargs,
+        ];
+
+        process = spawn(...getCommand(args), {
+            windowsHide: true,
+            stdio: [
+                'inherit', 'inherit', 'inherit',
+                'pipe'
+            ],
+        });
+
+        const [,,, muxOutput] = process.stdio;
+
+        res.setHeader('Connection', 'keep-alive');
+        res.setHeader('Content-Disposition', contentDisposition(streamInfo.filename));
+
+        res.setHeader(
+            'Estimated-Content-Length',
+            await estimateTunnelLength(streamInfo, estimateMultiplier)
+        );
+
+        pipe(muxOutput, res, shutdown);
+
+        process.on('close', shutdown);
+        res.on('finish', shutdown);
+    } catch {
+        shutdown();
+    }
+}
+
+const remux = async (streamInfo, res) => {
+    const format = streamInfo.filename.split('.').pop();
+    const urls = Array.isArray(streamInfo.urls) ? streamInfo.urls : [streamInfo.urls];
+    const args = urls.flatMap(url => ['-i', url]);
+
+    // if the stream type is merge, we expect two URLs
+    if (streamInfo.type === 'merge' && urls.length !== 2) {
+        return closeResponse(res);
+    }
+
+    if (streamInfo.subtitles) {
+        args.push(
+            '-i', streamInfo.subtitles,
+            '-map', `${urls.length}:s`,
+            '-c:s', format === 'mp4' ? 'mov_text' : 'webvtt',
+        );
+    }
+
+    if (urls.length === 2) {
+        args.push(
+            '-map', '0:v',
+            '-map', '1:a',
+        );
+    } else {
+        args.push(
+            '-map', '0:v:0',
+            '-map', '0:a:0'
+        );
+    }
+
+    args.push(
+        '-c:v', 'copy',
+        ...(streamInfo.type === 'mute' ? ['-an'] : ['-c:a', 'copy'])
+    );
+
+    if (format === 'mp4') {
+        args.push('-movflags', 'faststart+frag_keyframe+empty_moov');
+    }
+
+    if (streamInfo.type !== 'mute' && streamInfo.isHLS && hlsExceptions.has(streamInfo.service)) {
+        if (streamInfo.service === 'youtube' && format === 'webm') {
+            args.push('-c:a', 'libopus');
+        } else {
+            args.push('-c:a', 'aac', '-bsf:a', 'aac_adtstoasc');
+        }
+    }
+
+    if (streamInfo.metadata) {
+        args.push(...convertMetadataToFFmpeg(streamInfo.metadata));
+    }
+
+    args.push('-f', format === 'mkv' ? 'matroska' : format, 'pipe:3');
+
+    await render(res, streamInfo, args);
+}
+
+const convertAudio = async (streamInfo, res) => {
+    const args = [
+        '-i', streamInfo.urls,
+        '-vn',
+        ...(streamInfo.audioCopy ? ['-c:a', 'copy'] : ['-b:a', `${streamInfo.audioBitrate}k`]),
+    ];
+
+    if (streamInfo.audioFormat === 'mp3' && streamInfo.audioBitrate === '8') {
+        args.push('-ar', '12000');
+    }
+
+    if (streamInfo.audioFormat === 'opus') {
+        args.push('-vbr', 'off');
+    }
+
+    if (streamInfo.audioFormat === 'mp4a') {
+        args.push('-movflags', 'frag_keyframe+empty_moov');
+    }
+
+    if (streamInfo.metadata) {
+        args.push(...convertMetadataToFFmpeg(streamInfo.metadata));
+    }
+
+    args.push(
+        '-f',
+        streamInfo.audioFormat === 'm4a' ? 'ipod' : streamInfo.audioFormat,
+        'pipe:3',
+    );
+
+    await render(
+        res,
+        streamInfo,
+        args,
+        estimateAudioMultiplier(streamInfo) * 1.1,
+    );
+}
+
+const convertGif = async (streamInfo, res) => {
+    const args = [
+        '-i', streamInfo.urls,
+
+        '-vf',
+        'scale=-1:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse',
+        '-loop', '0',
+
+        '-f', 'gif', 'pipe:3',
+    ];
+
+    await render(
+        res,
+        streamInfo,
+        args,
+        60,
+    );
+}
+
+export default {
+    remux,
+    convertAudio,
+    convertGif,
+}

api/src/stream/internal-hls.js

@@ -0,0 +1,141 @@
+import HLS from "hls-parser";
+import { createInternalStream } from "./manage.js";
+import { request } from "undici";
+
+function getURL(url) {
+    try {
+        return new URL(url);
+    } catch {
+        return null;
+    }
+}
+
+function transformObject(streamInfo, hlsObject) {
+    if (hlsObject === undefined) {
+        return (object) => transformObject(streamInfo, object);
+    }
+
+    let fullUrl;
+    if (getURL(hlsObject.uri)) {
+        fullUrl = new URL(hlsObject.uri);
+    } else {
+        fullUrl = new URL(hlsObject.uri, streamInfo.url);
+    }
+
+    if (fullUrl.hostname !== '127.0.0.1') {
+        hlsObject.uri = createInternalStream(fullUrl.toString(), streamInfo);
+
+        if (hlsObject.map) {
+            hlsObject.map = transformObject(streamInfo, hlsObject.map);
+        }
+    }
+
+    return hlsObject;
+}
+
+function transformMasterPlaylist(streamInfo, hlsPlaylist) {
+    const makeInternalStream = transformObject(streamInfo);
+
+    const makeInternalVariants = (variant) => {
+        variant = transformObject(streamInfo, variant);
+        variant.video = variant.video.map(makeInternalStream);
+        variant.audio = variant.audio.map(makeInternalStream);
+        return variant;
+    };
+    hlsPlaylist.variants = hlsPlaylist.variants.map(makeInternalVariants);
+
+    return hlsPlaylist;
+}
+
+function transformMediaPlaylist(streamInfo, hlsPlaylist) {
+    const makeInternalSegments = transformObject(streamInfo);
+    hlsPlaylist.segments = hlsPlaylist.segments.map(makeInternalSegments);
+    hlsPlaylist.prefetchSegments = hlsPlaylist.prefetchSegments.map(makeInternalSegments);
+    return hlsPlaylist;
+}
+
+const HLS_MIME_TYPES = ["application/vnd.apple.mpegurl", "audio/mpegurl", "application/x-mpegURL"];
+
+export function isHlsResponse(req, streamInfo) {
+    return HLS_MIME_TYPES.includes(req.headers['content-type'])
+        // bluesky's cdn responds with wrong content-type for the hls playlist,
+        // so we enforce it here until they fix it
+        || (streamInfo.service === 'bsky' && streamInfo.url.endsWith('.m3u8'));
+}
+
+export async function handleHlsPlaylist(streamInfo, req, res) {
+    let hlsPlaylist = await req.body.text();
+    hlsPlaylist = HLS.parse(hlsPlaylist);
+
+    hlsPlaylist = hlsPlaylist.isMasterPlaylist
+        ? transformMasterPlaylist(streamInfo, hlsPlaylist)
+        : transformMediaPlaylist(streamInfo, hlsPlaylist);
+
+    hlsPlaylist = HLS.stringify(hlsPlaylist);
+
+    res.send(hlsPlaylist);
+}
+
+async function getSegmentSize(url, config) {
+    const segmentResponse = await request(url, {
+        ...config,
+        throwOnError: true
+    });
+
+    if (segmentResponse.headers['content-length']) {
+        segmentResponse.body.dump();
+        return +segmentResponse.headers['content-length'];
+    }
+
+    // if the response does not have a content-length
+    // header, we have to compute it ourselves
+    let size = 0;
+
+    for await (const data of segmentResponse.body) {
+        size += data.length;
+    }
+
+    return size;
+}
+
+export async function probeInternalHLSTunnel(streamInfo) {
+    const { url, headers, dispatcher, signal } = streamInfo;
+
+    // remove all falsy headers
+    Object.keys(headers).forEach(key => {
+        if (!headers[key]) delete headers[key];
+    });
+
+    const config = { headers, dispatcher, signal, maxRedirections: 16 };
+
+    const manifestResponse = await fetch(url, config);
+
+    const manifest = HLS.parse(await manifestResponse.text());
+    if (manifest.segments.length === 0)
+        return -1;
+
+    const segmentSamples = await Promise.all(
+        Array(5).fill().map(async () => {
+            const manifestIdx = Math.floor(Math.random() * manifest.segments.length);
+            const randomSegment = manifest.segments[manifestIdx];
+            if (!randomSegment.uri)
+                throw "segment is missing URI";
+
+            let segmentUrl;
+
+            if (getURL(randomSegment.uri)) {
+                segmentUrl = new URL(randomSegment.uri);
+            } else {
+                segmentUrl = new URL(randomSegment.uri, streamInfo.url);
+            }
+
+            const segmentSize = await getSegmentSize(segmentUrl, config) / randomSegment.duration;
+            return segmentSize;
+        })
+    );
+
+    const averageBitrate = segmentSamples.reduce((a, b) => a + b) / segmentSamples.length;
+    const totalDuration = manifest.segments.reduce((acc, segment) => acc + segment.duration, 0);
+
+    return averageBitrate * totalDuration;
+}

api/src/stream/internal.js

@@ -0,0 +1,193 @@
+import { request } from "undici";
+import { Readable } from "node:stream";
+import { closeRequest, getHeaders, pipe } from "./shared.js";
+import { handleHlsPlaylist, isHlsResponse, probeInternalHLSTunnel } from "./internal-hls.js";
+
+const CHUNK_SIZE = BigInt(8e6); // 8 MB
+const min = (a, b) => a < b ? a : b;
+
+const serviceNeedsChunks = new Set(["youtube", "vk"]);
+
+async function* readChunks(streamInfo, size) {
+    let read = 0n, chunksSinceTransplant = 0;
+    while (read < size) {
+        if (streamInfo.controller.signal.aborted) {
+            throw new Error("controller aborted");
+        }
+
+        const chunk = await request(streamInfo.url, {
+            headers: {
+                ...getHeaders(streamInfo.service),
+                Range: `bytes=${read}-${read + CHUNK_SIZE}`
+            },
+            dispatcher: streamInfo.dispatcher,
+            signal: streamInfo.controller.signal,
+            maxRedirections: 4
+        });
+
+        if (chunk.statusCode === 403 && chunksSinceTransplant >= 3 && streamInfo.transplant) {
+            chunksSinceTransplant = 0;
+            try {
+                await streamInfo.transplant(streamInfo.dispatcher);
+                continue;
+            } catch {}
+        }
+
+        chunksSinceTransplant++;
+
+        const expected = min(CHUNK_SIZE, size - read);
+        const received = BigInt(chunk.headers['content-length']);
+
+        if (received < expected / 2n) {
+            closeRequest(streamInfo.controller);
+        }
+
+        for await (const data of chunk.body) {
+            yield data;
+        }
+
+        read += received;
+    }
+}
+
+async function handleChunkedStream(streamInfo, res) {
+    const { signal } = streamInfo.controller;
+    const cleanup = () => (res.end(), closeRequest(streamInfo.controller));
+
+    try {
+        let req, attempts = 3;
+        while (attempts--) {
+            req = await fetch(streamInfo.url, {
+                headers: getHeaders(streamInfo.service),
+                method: 'HEAD',
+                dispatcher: streamInfo.dispatcher,
+                signal
+            });
+
+            streamInfo.url = req.url;
+            if (req.status === 403 && streamInfo.transplant) {
+                try {
+                    await streamInfo.transplant(streamInfo.dispatcher);
+                } catch {
+                    break;
+                }
+            } else break;
+        }
+
+        const size = BigInt(req.headers.get('content-length'));
+
+        if (req.status !== 200 || !size) {
+            return cleanup();
+        }
+
+        const generator = readChunks(streamInfo, size);
+
+        const abortGenerator = () => {
+            generator.return();
+            signal.removeEventListener('abort', abortGenerator);
+        }
+
+        signal.addEventListener('abort', abortGenerator);
+
+        const stream = Readable.from(generator);
+
+        for (const headerName of ['content-type', 'content-length']) {
+            const headerValue = req.headers.get(headerName);
+            if (headerValue) res.setHeader(headerName, headerValue);
+        }
+
+        pipe(stream, res, cleanup);
+    } catch {
+        cleanup();
+    }
+}
+
+async function handleGenericStream(streamInfo, res) {
+    const { signal } = streamInfo.controller;
+    const cleanup = () => res.end();
+
+    try {
+        const fileResponse = await request(streamInfo.url, {
+            headers: {
+                ...Object.fromEntries(streamInfo.headers),
+                host: undefined
+            },
+            dispatcher: streamInfo.dispatcher,
+            signal,
+            maxRedirections: 16
+        });
+
+        res.status(fileResponse.statusCode);
+        fileResponse.body.on('error', () => {});
+
+        const isHls = isHlsResponse(fileResponse, streamInfo);
+
+        for (const [ name, value ] of Object.entries(fileResponse.headers)) {
+            if (!isHls || name.toLowerCase() !== 'content-length') {
+                res.setHeader(name, value);
+            }
+        }
+
+        if (fileResponse.statusCode < 200 || fileResponse.statusCode > 299) {
+            return cleanup();
+        }
+
+        if (isHls) {
+            await handleHlsPlaylist(streamInfo, fileResponse, res);
+        } else {
+            pipe(fileResponse.body, res, cleanup);
+        }
+    } catch {
+        closeRequest(streamInfo.controller);
+        cleanup();
+    }
+}
+
+export function internalStream(streamInfo, res) {
+    if (streamInfo.headers) {
+        streamInfo.headers.delete('icy-metadata');
+    }
+
+    if (serviceNeedsChunks.has(streamInfo.service) && !streamInfo.isHLS) {
+        return handleChunkedStream(streamInfo, res);
+    }
+
+    return handleGenericStream(streamInfo, res);
+}
+
+export async function probeInternalTunnel(streamInfo) {
+    try {
+        const signal = AbortSignal.timeout(3000);
+        const headers = {
+            ...Object.fromEntries(streamInfo.headers || []),
+            ...getHeaders(streamInfo.service),
+            host: undefined,
+            range: undefined
+        };
+
+        if (streamInfo.isHLS) {
+            return probeInternalHLSTunnel({
+                ...streamInfo,
+                signal,
+                headers
+            });
+        }
+
+        const response = await request(streamInfo.url, {
+            method: 'HEAD',
+            headers,
+            dispatcher: streamInfo.dispatcher,
+            signal,
+            maxRedirections: 16
+        });
+
+        if (response.statusCode !== 200)
+            throw "status is not 200 OK";
+
+        const size = +response.headers['content-length'];
+        if (isNaN(size))
+            throw "content-length is not a number";
+
+        return size;
+    } catch {}
+}

api/src/stream/manage.js

@@ -0,0 +1,307 @@
+import Store from "../store/store.js";
+
+import { nanoid } from "nanoid";
+import { randomBytes } from "crypto";
+import { strict as assert } from "assert";
+import { setMaxListeners } from "node:events";
+
+import { env } from "../config.js";
+import { closeRequest } from "./shared.js";
+import { decryptStream, encryptStream } from "../misc/crypto.js";
+import { hashHmac } from "../security/secrets.js";
+import { zip } from "../misc/utils.js";
+
+// optional dependency
+const freebind = env.freebindCIDR && await import('freebind').catch(() => {});
+
+const streamCache = new Store('streams');
+
+const internalStreamCache = new Map();
+
+export function createStream(obj) {
+    const streamID = nanoid(),
+        iv = randomBytes(16).toString('base64url'),
+        secret = randomBytes(32).toString('base64url'),
+        exp = new Date().getTime() + env.streamLifespan * 1000,
+        hmac = hashHmac(`${streamID},${exp},${iv},${secret}`, 'stream').toString('base64url'),
+        streamData = {
+            exp: exp,
+            type: obj.type,
+            urls: obj.url,
+            service: obj.service,
+            filename: obj.filename,
+
+            requestIP: obj.requestIP,
+            headers: obj.headers,
+
+            metadata: obj.fileMetadata || false,
+
+            audioBitrate: obj.audioBitrate,
+            audioCopy: !!obj.audioCopy,
+            audioFormat: obj.audioFormat,
+
+            isHLS: obj.isHLS || false,
+            originalRequest: obj.originalRequest,
+
+            // url to a subtitle file
+            subtitles: obj.subtitles,
+        };
+
+    // FIXME: this is now a Promise, but it is not awaited
+    //        here. it may happen that the stream is not
+    //        stored in the Store before it is requested.
+    streamCache.set(
+        streamID,
+        encryptStream(streamData, iv, secret),
+        env.streamLifespan
+    );
+
+    let streamLink = new URL('/tunnel', env.apiURL);
+
+    const params = {
+        'id': streamID,
+        'exp': exp,
+        'sig': hmac,
+        'sec': secret,
+        'iv': iv
+    }
+
+    for (const [key, value] of Object.entries(params)) {
+        streamLink.searchParams.append(key, value);
+    }
+
+    return streamLink.toString();
+}
+
+export function createProxyTunnels(info) {
+    const proxyTunnels = [];
+
+    let urls = info.url;
+
+    if (typeof urls === "string") {
+        urls = [urls];
+    }
+
+    const tunnelTemplate = {
+        type: "proxy",
+        headers: info?.headers,
+        requestIP: info?.requestIP,
+    }
+
+    for (const url of urls) {
+        proxyTunnels.push(
+            createStream({
+                ...tunnelTemplate,
+                url,
+                service: info?.service,
+                originalRequest: info?.originalRequest,
+            })
+        );
+    }
+
+    if (info.subtitles) {
+        proxyTunnels.push(
+            createStream({
+                ...tunnelTemplate,
+                url: info.subtitles,
+                service: `${info?.service}-subtitles`,
+            })
+        );
+    }
+
+    if (info.cover) {
+        proxyTunnels.push(
+            createStream({
+                ...tunnelTemplate,
+                url: info.cover,
+                service: `${info?.service}-cover`,
+            })
+        );
+    }
+
+    return proxyTunnels;
+}
+
+export function getInternalTunnel(id) {
+    return internalStreamCache.get(id);
+}
+
+export function getInternalTunnelFromURL(url) {
+    url = new URL(url);
+    if (url.hostname !== '127.0.0.1') {
+        return;
+    }
+
+    const id = url.searchParams.get('id');
+    return getInternalTunnel(id);
+}
+
+export function createInternalStream(url, obj = {}, isSubtitles) {
+    assert(typeof url === 'string');
+
+    let dispatcher = obj.dispatcher;
+    if (obj.requestIP) {
+        dispatcher = freebind?.dispatcherFromIP(obj.requestIP, { strict: false })
+    }
+
+    const streamID = nanoid();
+    let controller = obj.controller;
+
+    if (!controller) {
+        controller = new AbortController();
+        setMaxListeners(Infinity, controller.signal);
+    }
+
+    let headers;
+    if (obj.headers) {
+        headers = new Map(Object.entries(obj.headers));
+    }
+
+    // subtitles don't need special treatment unlike big media files
+    const service = isSubtitles ? `${obj.service}-subtitles` : obj.service;
+
+    internalStreamCache.set(streamID, {
+        url,
+        service,
+        headers,
+        controller,
+        dispatcher,
+        isHLS: obj.isHLS,
+        transplant: obj.transplant
+    });
+
+    let streamLink = new URL('/itunnel', `http://127.0.0.1:${env.tunnelPort}`);
+    streamLink.searchParams.set('id', streamID);
+
+    const cleanup = () => {
+        destroyInternalStream(streamLink);
+        controller.signal.removeEventListener('abort', cleanup);
+    }
+
+    controller.signal.addEventListener('abort', cleanup);
+
+    return streamLink.toString();
+}
+
+function getInternalTunnelId(url) {
+    url = new URL(url);
+    if (url.hostname !== '127.0.0.1') {
+        return;
+    }
+
+    return url.searchParams.get('id');
+}
+
+export function destroyInternalStream(url) {
+    const id = getInternalTunnelId(url);
+
+    if (internalStreamCache.has(id)) {
+        closeRequest(getInternalTunnel(id)?.controller);
+        internalStreamCache.delete(id);
+    }
+}
+
+const transplantInternalTunnels = function(tunnelUrls, transplantUrls) {
+    if (tunnelUrls.length !== transplantUrls.length) {
+        return;
+    }
+
+    for (const [ tun, url ] of zip(tunnelUrls, transplantUrls)) {
+        const id = getInternalTunnelId(tun);
+        const itunnel = getInternalTunnel(id);
+
+        if (!itunnel) continue;
+        itunnel.url = url;
+    }
+}
+
+const transplantTunnel = async function (dispatcher) {
+    if (this.pendingTransplant) {
+        await this.pendingTransplant;
+        return;
+    }
+
+    let finished;
+    this.pendingTransplant = new Promise(r => finished = r);
+
+    try {
+        const handler = await import(`../processing/services/${this.service}.js`);
+        const response = await handler.default({
+            ...this.originalRequest,
+            dispatcher
+        });
+
+        if (!response.urls) {
+            return;
+        }
+
+        response.urls = [response.urls].flat();
+        if (this.originalRequest.isAudioOnly && response.urls.length > 1) {
+            response.urls = [response.urls[1]];
+        } else if (this.originalRequest.isAudioMuted) {
+            response.urls = [response.urls[0]];
+        }
+
+        const tunnels = [this.urls].flat();
+        if (tunnels.length !== response.urls.length) {
+            return;
+        }
+
+        transplantInternalTunnels(tunnels, response.urls);
+    }
+    catch {}
+    finally {
+        finished();
+        delete this.pendingTransplant;
+    }
+}
+
+function wrapStream(streamInfo) {
+    const url = streamInfo.urls;
+
+    if (streamInfo.originalRequest) {
+        streamInfo.transplant = transplantTunnel.bind(streamInfo);
+    }
+
+    if (typeof url === 'string') {
+        streamInfo.urls = createInternalStream(url, streamInfo);
+    } else if (Array.isArray(url)) {
+        for (const idx in streamInfo.urls) {
+            streamInfo.urls[idx] = createInternalStream(
+                streamInfo.urls[idx], streamInfo
+            );
+        }
+    } else throw 'invalid urls';
+
+    if (streamInfo.subtitles) {
+        streamInfo.subtitles = createInternalStream(
+            streamInfo.subtitles,
+            streamInfo,
+            /*isSubtitles=*/true
+        );
+    }
+
+    return streamInfo;
+}
+
+export async function verifyStream(id, hmac, exp, secret, iv) {
+    try {
+        const ghmac = hashHmac(`${id},${exp},${iv},${secret}`, 'stream').toString('base64url');
+        const cache = await streamCache.get(id.toString());
+
+        if (ghmac !== String(hmac)) return { status: 401 };
+        if (!cache) return { status: 404 };
+
+        const streamInfo = JSON.parse(decryptStream(cache, iv, secret));
+
+        if (!streamInfo) return { status: 404 };
+
+        if (Number(exp) <= new Date().getTime())
+            return { status: 404 };
+
+        return wrapStream(streamInfo);
+    }
+    catch {
+        return { status: 500 };
+    }
+}

api/src/stream/proxy.js

@@ -0,0 +1,43 @@
+import { Agent, request } from "undici";
+import { create as contentDisposition } from "content-disposition-header";
+
+import { destroyInternalStream } from "./manage.js";
+import { getHeaders, closeRequest, closeResponse, pipe } from "./shared.js";
+
+const defaultAgent = new Agent();
+
+export default async function (streamInfo, res) {
+    const abortController = new AbortController();
+    const shutdown = () => (
+        closeRequest(abortController),
+        closeResponse(res),
+        destroyInternalStream(streamInfo.urls)
+    );
+
+    try {
+        res.setHeader('Cross-Origin-Resource-Policy', 'cross-origin');
+        res.setHeader('Content-disposition', contentDisposition(streamInfo.filename));
+
+        const { body: stream, headers, statusCode } = await request(streamInfo.urls, {
+            headers: {
+                ...getHeaders(streamInfo.service),
+                Range: streamInfo.range
+            },
+            signal: abortController.signal,
+            maxRedirections: 16,
+            dispatcher: defaultAgent,
+        });
+
+        res.status(statusCode);
+
+        for (const headerName of ['accept-ranges', 'content-type', 'content-length']) {
+            if (headers[headerName]) {
+                res.setHeader(headerName, headers[headerName]);
+            }
+        }
+
+        pipe(stream, res, shutdown);
+    } catch {
+        shutdown();
+    }
+}

api/src/stream/shared.js

@@ -0,0 +1,91 @@
+import { genericUserAgent } from "../config.js";
+import { vkClientAgent } from "../processing/services/vk.js";
+import { getInternalTunnelFromURL } from "./manage.js";
+import { probeInternalTunnel } from "./internal.js";
+
+const defaultHeaders = {
+    'user-agent': genericUserAgent
+}
+
+const serviceHeaders = {
+    bilibili: {
+        referer: 'https://www.bilibili.com/'
+    },
+    youtube: {
+        accept: '*/*',
+        origin: 'https://www.youtube.com',
+        referer: 'https://www.youtube.com',
+        DNT: '?1'
+    },
+    vk: {
+        'user-agent': vkClientAgent
+    },
+    tiktok: {
+        referer: 'https://www.tiktok.com/',
+    }
+}
+
+export function closeRequest(controller) {
+    try { controller.abort() } catch {}
+}
+
+export function closeResponse(res) {
+    if (!res.headersSent) {
+        res.sendStatus(500);
+    }
+
+    return res.end();
+}
+
+export function getHeaders(service) {
+    // Converting all header values to strings
+    return Object.entries({ ...defaultHeaders, ...serviceHeaders[service] })
+        .reduce((p, [key, val]) => ({ ...p, [key]: String(val) }), {})
+}
+
+export function pipe(from, to, done) {
+    from.on('error', done)
+        .on('close', done);
+
+    to.on('error', done)
+      .on('close', done);
+
+    from.pipe(to);
+}
+
+export async function estimateTunnelLength(streamInfo, multiplier = 1.1) {
+    let urls = streamInfo.urls;
+    if (!Array.isArray(urls)) {
+        urls = [ urls ];
+    }
+
+    const internalTunnels = urls.map(getInternalTunnelFromURL);
+    if (internalTunnels.some(t => !t))
+        return -1;
+
+    const sizes = await Promise.all(internalTunnels.map(probeInternalTunnel));
+    const estimatedSize = sizes.reduce(
+        // if one of the sizes is missing, let's just make a very
+        // bold guess that it's the same size as the existing one
+        (acc, cur) => cur <= 0 ? acc * 2 : acc + cur,
+        0
+    );
+
+    if (isNaN(estimatedSize) || estimatedSize <= 0) {
+        return -1;
+    }
+
+    return Math.floor(estimatedSize * multiplier);
+}
+
+export function estimateAudioMultiplier(streamInfo) {
+    if (streamInfo.audioFormat === 'wav') {
+        return 1411 / 128;
+    }
+
+    if (streamInfo.audioCopy) {
+        return 1;
+    }
+
+    return streamInfo.audioBitrate / 128;
+}

api/src/stream/stream.js

@@ -0,0 +1,32 @@
+import proxy from "./proxy.js";
+import ffmpeg from "./ffmpeg.js";
+
+import { closeResponse } from "./shared.js";
+import { internalStream } from "./internal.js";
+
+export default async function(res, streamInfo) {
+    try {
+        switch (streamInfo.type) {
+            case "proxy":
+                return await proxy(streamInfo, res);
+
+            case "internal":
+                return await internalStream(streamInfo.data, res);
+
+            case "merge":
+            case "remux":
+            case "mute":
+                return await ffmpeg.remux(streamInfo, res);
+
+            case "audio":
+                return await ffmpeg.convertAudio(streamInfo, res);
+
+            case "gif":
+                return await ffmpeg.convertGif(streamInfo, res);
+        }
+
+        closeResponse(res);
+    } catch {
+        closeResponse(res);
+    }
+}

api/src/util/generate-jwt-secret.js

@@ -0,0 +1,22 @@
+// run with `pnpm -r token:jwt`
+
+const makeSecureString = (length = 64) => {
+    const alphabet = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-';
+    const out = [];
+
+    while (out.length < length) {
+        for (const byte of crypto.getRandomValues(new Uint8Array(length))) {
+            if (byte < alphabet.length) {
+                out.push(alphabet[byte]);
+            }
+
+            if (out.length === length) {
+                break;
+            }
+        }
+    }
+
+    return out.join('');
+}
+
+console.log(`JWT_SECRET: ${JSON.stringify(makeSecureString(64))}`)

api/src/util/test.js

@@ -0,0 +1,136 @@
+import path from "node:path";
+
+import { env } from "../config.js";
+import { runTest } from "../misc/run-test.js";
+import { loadJSON } from "../misc/load-from-fs.js";
+import { Red, Bright } from "../misc/console-text.js";
+import { setGlobalDispatcher, EnvHttpProxyAgent, ProxyAgent } from "undici";
+import { randomizeCiphers } from "../misc/randomize-ciphers.js";
+
+import { services } from "../processing/service-config.js";
+
+const getTestPath = service => path.join('./src/util/tests/', `./${service}.json`);
+const getTests = (service) => loadJSON(getTestPath(service));
+
+// services that are known to frequently fail due to external
+// factors (e.g. rate limiting)
+const finnicky = new Set(
+    process.env.TEST_IGNORE_SERVICES
+    ? process.env.TEST_IGNORE_SERVICES.split(',')
+    : ['bilibili', 'instagram', 'facebook', 'youtube', 'vk', 'twitter', 'reddit']
+);
+
+const runTestsFor = async (service) => {
+    const tests = getTests(service);
+    let softFails = 0, fails = 0;
+
+    if (!tests) {
+        throw "no such service: " + service;
+    }
+
+    for (const test of tests) {
+        const { name, url, params, expected } = test;
+        const canFail = test.canFail || finnicky.has(service);
+
+        try {
+            await runTest(url, params, expected);
+            console.log(`${service}/${name}: ok`);
+
+        } catch (e) {
+            softFails += !canFail;
+            fails++;
+
+            let failText = canFail ? `${Red('FAIL')} (ignored)` : Bright(Red('FAIL'));
+            if (canFail && process.env.GITHUB_ACTION) {
+                console.log(`::warning title=${service}/${name.replace(/,/g, ';')}::failed and was ignored`);
+            }
+
+            console.error(`${service}/${name}: ${failText}`);
+            const errorString = e.toString().split('\n');
+            let c = '┃';
+            errorString.forEach((line, index) => {
+                line = line.replace('!=', Red('!='));
+
+                if (index === errorString.length - 1) {
+                    c = '┗';
+                }
+
+                console.error(`   ${c}`, line);
+            });
+        }
+    }
+
+    return { fails, softFails };
+}
+
+const printHeader = (service, padLen) => {
+    const padding = padLen - service.length;
+    service = service.padEnd(1 + service.length + padding, ' ');
+    console.log(service + '='.repeat(50));
+}
+
+// TODO: remove env.externalProxy in a future version
+setGlobalDispatcher(
+    new EnvHttpProxyAgent({ httpProxy: env.externalProxy || undefined })
+);
+
+env.streamLifespan = 10000;
+env.apiURL = 'http://x/';
+randomizeCiphers();
+
+const action = process.argv[2];
+switch (action) {
+    case "get-services":
+        const fromConfig = Object.keys(services);
+
+        const missingTests = fromConfig.filter(
+            service => {
+                const tests = getTests(service);
+                return !tests || tests.length === 0
+            }
+        );
+
+        if (missingTests.length) {
+            console.error('services have no tests:', missingTests);
+            process.exitCode = 1;
+            break;
+        }
+
+        console.log(JSON.stringify(fromConfig));
+        break;
+
+    case "run-tests-for":
+
+        try {
+            const { softFails } = await runTestsFor(process.argv[3]);
+            process.exitCode = Number(!!softFails);
+        } catch (e) {
+            console.error(e);
+            process.exitCode = 1;
+            break;
+        }
+
+        break;
+    default:
+        const maxHeaderLen = Object.keys(services).reduce((n, v) => v.length > n ? v.length : n, 0);
+        const failCounters = {};
+
+        for (const service in services) {
+            printHeader(service, maxHeaderLen);
+            const { fails, softFails } = await runTestsFor(service);
+            failCounters[service] = fails;
+            console.log();
+
+            if (!process.exitCode && softFails)
+                process.exitCode = 1;
+        }
+
+        console.log('='.repeat(50 + maxHeaderLen));
+        console.log(
+            Bright('total fails:'),
+            Object.values(failCounters).reduce((a, b) => a + b)
+        );
+        for (const [ service, fails ] of Object.entries(failCounters)) {
+            if (fails) console.log(`${Bright(service)} fails: ${fails}`);
+        }
+}

api/src/util/tests/bilibili.json

@@ -0,0 +1,69 @@
+[
+    {
+        "name": "1080p video",
+        "url": "https://www.bilibili.com/video/BV18i4y1m7xV/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "1080p video muted",
+        "url": "https://www.bilibili.com/video/BV18i4y1m7xV/",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "1080p vertical video",
+        "url": "https://www.bilibili.com/video/BV1uu411z7VV/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "1080p vertical video muted",
+        "url": "https://www.bilibili.com/video/BV1uu411z7VV/",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "b23.tv shortlink",
+        "url": "https://b23.tv/av32430100",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "bilibili.tv link",
+        "url": "https://www.bilibili.tv/en/video/4789599404426256",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "bilibili.com link with part id",
+        "url": "https://www.bilibili.com/video/BV1uo4y1K72s?spm_id_from=333.788.videopod.episodes&p=6",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    }
+]

api/src/util/tests/bsky.json

@@ -0,0 +1,96 @@
+[
+    {
+        "name": "horizontal video",
+        "url": "https://bsky.app/profile/did:plc:oisofpd7lj26yvgiivf3lxsi/post/3l3giwtwp222m",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "horizontal video, recordWithMedia",
+        "url": "https://bsky.app/profile/did:plc:ywbm3iywnhzep3ckt6efhoh7/post/3l3wonhk23g2i",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "vertical video",
+        "url": "https://bsky.app/profile/did:plc:oisofpd7lj26yvgiivf3lxsi/post/3l3jhpomhjk2m",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "vertical video (muted)",
+        "url": "https://bsky.app/profile/did:plc:oisofpd7lj26yvgiivf3lxsi/post/3l3jhpomhjk2m",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "vertical video (audio)",
+        "url": "https://bsky.app/profile/did:plc:oisofpd7lj26yvgiivf3lxsi/post/3l3jhpomhjk2m",
+        "params": {
+            "downloadMode": "audio"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "single image",
+        "url": "https://bsky.app/profile/did:plc:k4a7d65fcyevbrnntjxh57go/post/3l33flpoygt26",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "gif with a quoted post",
+        "url": "https://bsky.app/profile/imlunahey.com/post/3lgajpn5dtk2t",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "gif alone in a post",
+        "url": "https://bsky.app/profile/imlunahey.com/post/3lgah3ovxnc2q",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "several images",
+        "url": "https://bsky.app/profile/did:plc:rai7s6su2sy22ss7skouedl7/post/3kzxuxbiul626",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "picker"
+        }
+    },
+    {
+        "name": "deleted post/invalid user",
+        "url": "https://bsky.app/profile/notreal.bsky.team/post/3l2udah76ch2c",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    }
+]

api/src/util/tests/dailymotion.json

@@ -0,0 +1,29 @@
+[
+    {
+        "name": "regular video",
+        "url": "https://www.dailymotion.com/video/x8t1eho",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "private video",
+        "url": "https://www.dailymotion.com/video/k41fZWpx2TaAORA2nok",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "dai.ly shortened link",
+        "url": "https://dai.ly/k41fZWpx2TaAORA2nok",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    }
+]

api/src/util/tests/facebook.json

@@ -0,0 +1,65 @@
+[
+    {
+        "name": "direct video with username and id",
+        "url": "https://web.facebook.com/100071784061914/videos/588631943886661/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "direct video with id as query param",
+        "url": "https://web.facebook.com/watch/?v=883839773514682&ref=sharing",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "direct video with caption",
+        "url": "https://web.facebook.com/wood57/videos/𝐒𝐞𝐛𝐚𝐬𝐤𝐨𝐦-𝐟𝐮𝐥𝐥/883839773514682",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "shortlink video",
+        "url": "https://fb.watch/r1K6XHMfGT/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "reel video",
+        "url": "https://web.facebook.com/reel/730293269054758",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "shared video link",
+        "url": "https://www.facebook.com/share/v/6EJK4Z8EAEAHtz8K/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "shared video link v2",
+        "url": "https://web.facebook.com/share/r/JFZfPVgLkiJQmWrr/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    }
+]

api/src/util/tests/instagram.json

@@ -0,0 +1,134 @@
+[
+    {
+        "name": "single photo post",
+        "url": "https://www.instagram.com/p/DFx6KVduFWy/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "various picker (photos + video)",
+        "url": "https://www.instagram.com/p/CvYrSgnsKjv/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "picker"
+        }
+    },
+    {
+        "name": "reel",
+        "url": "https://www.instagram.com/reel/DFQe23tOWKz/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "regular video",
+        "url": "https://www.instagram.com/p/CmCVWoIr9OH/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "reel (isAudioOnly)",
+        "url": "https://www.instagram.com/reel/DFQe23tOWKz/",
+        "params": {
+            "downloadMode": "audio"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "reel (isAudioMuted)",
+        "url": "https://www.instagram.com/reel/DFQe23tOWKz/",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "inexistent reel",
+        "url": "https://www.instagram.com/reel/XXXXXXXXXX/",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    },
+    {
+        "name": "inexistent post",
+        "url": "https://www.instagram.com/p/XXXXXXXXXX/",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    },
+    {
+        "name": "post info in an array (for whatever reason??)",
+        "url": "https://www.instagram.com/reel/CrVB9tatUDv/?igshid=blaBlABALALbLABULLSHIT==",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "prone to get rate limited",
+        "url": "https://www.instagram.com/reel/CrO-T7Qo6rq/?igshid=fuckYouNoTrackingIdForYou==",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "ddinstagram link",
+        "url": "https://ddinstagram.com/p/CmCVWoIr9OH/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "d.ddinstagram.com link",
+        "url": "https://d.ddinstagram.com/p/CmCVWoIr9OH/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "g.ddinstagram.com link",
+        "url": "https://g.ddinstagram.com/p/CmCVWoIr9OH/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "private instagram post",
+        "url": "https://www.instagram.com/p/C5_A1TQNPrYw4c2g9KAUTPUl8RVHqiAdAcOOSY0",
+        "canFail": true,
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error",
+            "errorCode": "error.api.content.post.private"
+        }
+    }
+]

api/src/util/tests/loom.json

@@ -0,0 +1,60 @@
+[
+    {
+        "name": "1080p video",
+        "url": "https://www.loom.com/share/d165fd054a294d8a8587807bcc50c885",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "1080p video (muted)",
+        "url": "https://www.loom.com/share/d165fd054a294d8a8587807bcc50c885",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "1080p video (audio only)",
+        "url": "https://www.loom.com/share/d165fd054a294d8a8587807bcc50c885",
+        "params": {
+            "downloadMode": "audio"
+        },
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    },
+    {
+        "name": "video with no transcodedUrl",
+        "url": "https://www.loom.com/share/aa3d8b08bee74d05af5b42989e9f33e9",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "video with title in url",
+        "url": "https://www.loom.com/share/Meet-AI-workflows-aa3d8b08bee74d05af5b42989e9f33e9",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "video with title in url (2)",
+        "url": "https://www.loom.com/share/Unlocking-Incredible-Organizational-Velocity-with-Async-Video-4a2a8baf124c4390954dcbb46a58cfd7",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    }
+]

api/src/util/tests/newgrounds.json

@@ -0,0 +1,42 @@
+[
+    {
+        "name": "regular video",
+        "url": "https://www.newgrounds.com/portal/view/938050",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "regular video (audio only)",
+        "url": "https://www.newgrounds.com/portal/view/938050",
+        "params": {
+            "downloadMode": "audio"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "regular video (muted)",
+        "url": "https://www.newgrounds.com/portal/view/938050",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "regular music",
+        "url": "https://www.newgrounds.com/audio/listen/500476",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    }
+]

api/src/util/tests/ok.json

@@ -0,0 +1,11 @@
+[
+    {
+        "name": "regular video",
+        "url": "https://ok.ru/video/7204071410346",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    }
+]

api/src/util/tests/pinterest.json

@@ -0,0 +1,97 @@
+[
+    {
+        "name": "regular video",
+        "url": "https://www.pinterest.com/pin/70437485604616/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "invalid link",
+        "url": "https://www.pinterest.com/pin/eeeeeee/",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error",
+            "errorCode": "error.api.fetch.empty"
+        }
+    },
+    {
+        "name": "regular video (isAudioOnly)",
+        "url": "https://www.pinterest.com/pin/70437485604616/",
+        "params": {
+            "downloadMode": "audio"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "regular video (isAudioMuted)",
+        "url": "https://www.pinterest.com/pin/70437485604616/",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "regular video (.ca TLD)",
+        "url": "https://www.pinterest.ca/pin/70437485604616/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "story",
+        "url": "https://www.pinterest.com/pin/gadget-cool-products-amazon-product-technology-kitchen-gadgets--1084663891475263837/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "regular picture",
+        "url": "https://www.pinterest.com/pin/412994228343400946/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "regular picture (.ca TLD)",
+        "url": "https://www.pinterest.ca/pin/412994228343400946/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "regular gif",
+        "url": "https://www.pinterest.com/pin/643170390530326178/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "regular gif (.ca TLD)",
+        "url": "https://www.pinterest.ca/pin/643170390530326178/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    }
+]

api/src/util/tests/reddit.json

@@ -0,0 +1,78 @@
+[
+    {
+        "name": "video with audio",
+        "url": "https://www.reddit.com/r/TikTokCringe/comments/wup1fg/id_be_escaping_at_the_first_chance_i_got/?utm_source=share&utm_medium=web2x&context=3",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "video with audio (isAudioOnly)",
+        "url": "https://www.reddit.com/r/TikTokCringe/comments/wup1fg/id_be_escaping_at_the_first_chance_i_got/?utm_source=share&utm_medium=web2x&context=3",
+        "params": {
+            "downloadMode": "audio"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "video with audio (isAudioMuted)",
+        "url": "https://www.reddit.com/r/TikTokCringe/comments/wup1fg/id_be_escaping_at_the_first_chance_i_got/?utm_source=share&utm_medium=web2x&context=3",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "video without audio",
+        "url": "https://www.reddit.com/r/catvideos/comments/ftoeo7/luna_doesnt_want_to_be_bothered_while_shes_napping/?utm_source=share&utm_medium=web2x&context=3",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "actual gif, not looping video",
+        "url": "https://www.reddit.com/r/whenthe/comments/109wqy1/god_really_did_some_trolling/?utm_source=share&utm_medium=web2x&context=3",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "different audio link, live render",
+        "url": "https://www.reddit.com/r/TikTokCringe/comments/15hce91/asian_daddy_kink/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "shortened video link",
+        "url": "https://v.redd.it/ifg2emt5ck0e1",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "shortened video link (alternative)",
+        "url": "https://reddit.com/video/ifg2emt5ck0e1",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    }
+]

api/src/util/tests/rutube.json

@@ -0,0 +1,100 @@
+[
+    {
+        "name": "regular video",
+        "url": "https://rutube.ru/video/b2f6c27649907c2fde0af411b03825eb/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "vertical video (isAudioMuted)",
+        "url": "https://rutube.ru/video/18a281399b96f9184c647455a86f6724/",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "russian region lock",
+        "url": "https://rutube.ru/video/b521653b4f71ece57b8ff54e57ca9b82/",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    },
+    {
+        "name": "vertical video",
+        "url": "https://rutube.ru/video/18a281399b96f9184c647455a86f6724/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "yappy",
+        "url": "https://rutube.ru/yappy/c8c32bf7aee04412837656ea26c2b25b/",
+        "canFail": true,
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "shorts",
+        "url": "https://rutube.ru/shorts/935c1afafd0e7d52836d671967d53dac/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "vertical video (isAudioOnly)",
+        "url": "https://rutube.ru/video/18a281399b96f9184c647455a86f6724/",
+        "params": {
+            "downloadMode": "audio"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "vertical video (isAudioMuted)",
+        "url": "https://rutube.ru/video/18a281399b96f9184c647455a86f6724/",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "private video",
+        "url": "https://rutube.ru/video/private/1161415be0e686214bb2a498165cab3e/?p=_IL1G8RSnKutunnTYwhZ5A",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "region locked video, should fail",
+        "canFail": true,
+        "url": "https://rutube.ru/video/e7ac82708cc22bd068a3bf6a7004d1b1/",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    }
+]

api/src/util/tests/snapchat.json

@@ -0,0 +1,29 @@
+[
+    {
+        "name": "spotlight",
+        "url": "https://www.snapchat.com/spotlight/W7_EDlXWTBiXAEEniNoMPwAAYdWxucG9pZmNqAY46j0a5AY46j0YbAAAAAQ",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "shortlinked spotlight",
+        "url": "https://t.snapchat.com/4ZsiBLDi",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "story",
+        "url": "https://www.snapchat.com/add/bazerkmakane",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "picker"
+        }
+    }
+]

api/src/util/tests/soundcloud.json

@@ -0,0 +1,107 @@
+[
+    {
+        "name": "public song (best)",
+        "url": "https://soundcloud.com/l2share77/loona-butterfly?utm_source=clipboard&utm_medium=text&utm_campaign=social_sharing",
+        "params": {
+            "audioFormat": "best"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "public song (mp3, isAudioMuted)",
+        "url": "https://soundcloud.com/l2share77/loona-butterfly?utm_source=clipboard&utm_medium=text&utm_campaign=social_sharing",
+        "params": {
+            "downloadMode": "mute",
+            "audioFormat": "mp3"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "private song",
+        "url": "https://soundcloud.com/user-798052861/asdasdasdsdsd/s-9TqZ7edLJ90",
+        "params": {
+            "audioFormat": "mp3"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "private song (wav, isAudioMuted)",
+        "url": "https://soundcloud.com/user-798052861/asdasdasdsdsd/s-9TqZ7edLJ90",
+        "params": {
+            "downloadMode": "mute",
+            "audioFormat": "wav"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "private song (ogg, isAudioMuted, isAudioOnly)",
+        "url": "https://soundcloud.com/user-798052861/asdasdasdsdsd/s-9TqZ7edLJ90",
+        "params": {
+            "downloadMode": "audio",
+            "audioFormat": "ogg"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "on.soundcloud link",
+        "url": "https://on.soundcloud.com/XHLLKSXRQ5yyGDuD9",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "on.soundcloud link, different stream type",
+        "url": "https://on.soundcloud.com/AG4c",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "no opus audio, fallback to mp3",
+        "url": "https://soundcloud.com/frums/credits",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "go+ song, should fail",
+        "canFail": true,
+        "url": "https://soundcloud.com/dualipa/physical-feat-troye-sivan",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    },
+    {
+        "name": "region locked song, should fail",
+        "canFail": true,
+        "url": "https://soundcloud.com/gotye/somebody-2024-feat-kimbra",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    }
+]

api/src/util/tests/streamable.json

@@ -0,0 +1,51 @@
+[
+    {
+        "name": "regular video",
+        "url": "https://streamable.com/p9cln4",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "embedded link",
+        "url": "https://streamable.com/e/rsmo56",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "regular video (isAudioOnly)",
+        "url": "https://streamable.com/p9cln4",
+        "params": {
+            "downloadMode": "audio"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "regular video (isAudioMuted)",
+        "url": "https://streamable.com/p9cln4",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "inexistent video",
+        "url": "https://streamable.com/XXXXXX",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    }
+]

api/src/util/tests/tiktok.json

@@ -0,0 +1,47 @@
+[
+    {
+        "name": "long link video",
+        "url": "https://www.tiktok.com/@fatfatmillycat/video/7195741644585454894",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "images",
+        "url": "https://www.tiktok.com/@matryoshk4/video/7231234675476532526",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "picker"
+        }
+    },
+    {
+        "name": "long link inexistent",
+        "url": "https://www.tiktok.com/@blablabla/video/7120851458451417478",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    },
+    {
+        "name": "short link inexistent",
+        "url": "https://vt.tiktok.com/2p4ewa7/",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    },
+    {
+        "name": "age restricted video",
+        "url": "https://www.tiktok.com/@.kyle.films/video/7415757181145877793",
+        "params": {},
+        "expected": {
+            "code": 400,
+            "status": "error"
+        }
+    }
+]

api/src/util/tests/tumblr.json

@@ -0,0 +1,49 @@
+[
+    {
+        "name": "at.tumblr link",
+        "url": "https://at.tumblr.com/music/704177038274281472/n7x7pr7x4w2b",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "user subdomain link",
+        "url": "https://garfield-69.tumblr.com/post/696499862852780032",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "web app link",
+        "url": "https://www.tumblr.com/rongzhi/707729381162958848/english-added-by-me?source=share",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "tumblr audio",
+        "url": "https://www.tumblr.com/zedneon/737815079301562368/zedneon-ft-mr-sauceman-tech-n9ne-speed-of?source=share",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "tumblr video converted to audio",
+        "url": "https://garfield-69.tumblr.com/post/696499862852780032",
+        "params": {
+            "downloadMode": "audio"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    }
+]

api/src/util/tests/twitch.json

@@ -0,0 +1,42 @@
+[
+    {
+        "name": "clip",
+        "url": "https://twitch.tv/rtgame/clip/TubularInventiveSardineCorgiDerp-PM47mJQQ2vsL5B5G",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    },
+    {
+        "name": "clip (isAudioOnly)",
+        "url": "https://twitch.tv/rtgame/clip/TubularInventiveSardineCorgiDerp-PM47mJQQ2vsL5B5G",
+        "params": {
+            "downloadMode": "audio"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "clip (isAudioMuted)",
+        "url": "https://twitch.tv/rtgame/clip/TubularInventiveSardineCorgiDerp-PM47mJQQ2vsL5B5G",
+        "params": {
+            "downloadMode": "mute"
+        },
+        "expected": {
+            "code": 200,
+            "status": "tunnel"
+        }
+    },
+    {
+        "name": "clip (mobile subdomain)",
+        "url": "https://m.twitch.tv/rtgame/clip/TubularInventiveSardineCorgiDerp-PM47mJQQ2vsL5B5G",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "redirect"
+        }
+    }
+]