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Timo
101761e984
- package.json: add type: module to silence ESM warnings - server: npm audit fix (0 vulnerabilities, ws vuln resolved) - Rename 4 CJS files to .cjs: build-extension, test-content-video-finder, test-locales, website/build - Update eslint.config.mjs for .cjs glob patterns - extension/README.md + server/README.md: document module structure
53 lines
2.8 KiB
Markdown
53 lines
2.8 KiB
Markdown
# KoalaSync Browser Extension
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A Manifest V3 Browser Extension (Chrome & Firefox) for synchronized video playback across any website.
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## Key Features
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- **Manifest V3**: Optimized Service Worker architecture with session persistence.
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- **Pure Vanilla JS**: No external dependencies or heavy libraries.
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- **Smart Peer IDs**: Hexadecimal IDs combined with customizable Usernames for easy identification.
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- **Dual Heartbeat**: Advanced session tracking (Background) and video synchronization (Content) to prevent ghost sessions.
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- **Live Diagnostics**: Built-in "Dev" tab for real-time video state debugging (ReadyState, CurrentTime, etc.).
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- **Dynamic i18n (Multi-Language)**: Fully localized in 6 languages (`en`, `de`, `fr`, `es`, `pt-BR`, `ru`) with auto-detected fallback and dynamic on-the-fly language selectors.
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## Tab Overview
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1. **Room**: Manage connections, view active peers, and share invitation links.
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2. **Sync**: Control video playback (Play/Pause/Force Sync) and view recent activity.
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3. **Settings**: Customize your Username, toggle domain-based Noise Filtering, and switch the App Language.
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4. **Dev**: Monitor connection status and view real-time video element metadata for debugging.
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## Privacy & Permissions
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KoalaSync requires `<all_urls>` permission to detect and interact with video elements (`<video>`) on websites.
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- **No Browsing History**: We do not track or store your browsing history.
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- **State Management**: Sensitive data (Room Passwords) is stored locally using `chrome.storage`.
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- **Zero Telemetry**: No analytics or external tracking scripts.
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- **Zero Runtime Dependencies**: The extension is built with pure Vanilla JS and contains no external libraries or tracking scripts, ensuring performance and privacy.
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## Installation
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1. **Prepare Extension**: From the repository root, run:
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```bash
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node scripts/build-extension.js
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```
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2. Open Chrome and go to `chrome://extensions/`.
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3. Enable **Developer mode** (top right).
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4. Click **Load unpacked** and select the `dist/chrome` folder.
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## Development
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If you modify `shared/constants.js`, you must synchronize the changes by running the build script from the root:
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```bash
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node scripts/build-extension.js
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```
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This ensures that the `extension/shared` folder is updated with the latest protocol constants.
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## Module Structure
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| File | Purpose |
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| `background.js` | Service worker: message routing, tab listeners, startup |
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| `content.js` | Video detection, audio processing, episode transition (IIFE) |
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| `popup.js` | Popup UI: join/create, tabs, status, settings |
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| `bridge.js` | Landing page bridge (injected into sync.koalastuff.net) |
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| `episode-utils.js` | Shared `extractEpisodeId()` / `sameEpisode()` — used by background.js, injected into content.js at build time |
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| `i18n.js` | Translation loader |
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| `shared/` | Constants, blacklist, name generator |
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