John Dvorak
37 lines
1.9 KiB
Markdown
37 lines
1.9 KiB
Markdown
# Security Policy — imhotep-playwright
|
|
|
|
## Fresh Context Per Run
|
|
|
|
Each `imhotep(page)` call creates a fresh execution context:
|
|
|
|
- **Deterministic mode**: Seeded LCG + monotonic counter IDs + stable clock. No shared state between runs.
|
|
- **Volatile mode**: UUID/nanoid + Date.now + Math.random. Fresh for each invocation.
|
|
- **No persistent state**: Execution contexts are not stored or reused across test files unless explicitly passed by the user.
|
|
|
|
## CDP Direct Connection
|
|
|
|
Imhotep-playwright uses **two** browser communication paths:
|
|
|
|
1. **Fast path**: `page.evaluate()` for simple geometry extraction (bounding boxes only).
|
|
2. **Full path**: Direct Chrome DevTools Protocol (CDP) session for deep extraction (styles, topology, transforms, fragments) via `imhotep-cdp` package.
|
|
|
|
The CDP path creates a direct debugging session with full DOM/CSS/Runtime access. This is a privileged channel. The Playwright package imports `CDPExtractor`, `createSessionManager`, and `resolveSelector` directly from `imhotep-cdp`.
|
|
|
|
Trust boundary: CDP sessions are created within the local Playwright browser context. No remote debugger dialing occurs.
|
|
|
|
## Trusted vs Untrusted Renderer Distinction
|
|
|
|
Imhotep distinguishes between trusted and untrusted renderers:
|
|
|
|
- **Trusted renderers**: Built-in React, Vue, and Storybook adapters that ship with Imhotep. These execute known mount/unmount code.
|
|
- **Untrusted renderers**: User-provided custom adapters. These run arbitrary user code in the Node.js process. Treat custom adapters with the same caution as any dependency.
|
|
- **Renderer isolation**: Each property run creates a fresh mount container. Renderers do not persist between runs unless the test author explicitly caches them.
|
|
|
|
## Playwright Peer Dependency
|
|
|
|
Imhotep-playwright requires Playwright as a peer dependency. Ensure your Playwright version is kept up to date to receive the latest browser security patches.
|
|
|
|
```bash
|
|
npm install --save-dev @playwright/test@latest playwright@latest
|
|
```
|