158 lines
6.8 KiB
Markdown
158 lines
6.8 KiB
Markdown
## `obscura`
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Top-level flags apply to every subcommand.
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```
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-v, --verbose Enable info logging
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-p, --port <PORT> CDP port (default 9222)
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--proxy <URL> HTTP or SOCKS5 proxy
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--stealth Consistent browser fingerprint + tracker blocking
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--obey-robots Respect robots.txt
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--user-agent <UA> Override the User-Agent
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--storage-dir <DIR> Persistent cookies and localStorage
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--allow-private-network Permit loopback / RFC1918 / link-local
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--v8-flags <FLAGS> Raw V8 flags, applied at startup
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-h, --help Help
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-V, --version Version
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```
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## `obscura fetch <URL>`
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Load a URL and print its content or an evaluated expression.
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```
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--dump <FORMAT> html | text | links | markdown | original | assets | cookies
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(default html)
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--selector <CSS> Narrow output to a CSS selector
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--wait <SECONDS> Fixed post-load delay; omitted uses adaptive settle (5s cap)
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--timeout <SECONDS> Navigation timeout (default 30)
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--wait-until <LEVEL> domcontentloaded | load | networkidle2 | networkidle0
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(default load)
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--user-agent <UA> Override the User-Agent
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--proxy <URL> HTTP or SOCKS5 proxy
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--stealth Consistent browser fingerprint + tracker blocking (global)
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-e, --eval <JS> Evaluate JS, print the result as JSON
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-o, --output <FILE> Write to a file instead of stdout
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-s, --screenshot <FILE> Capture the settled page as PNG (single URL)
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-q, --quiet Suppress info logging
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-v, --verbose Enable verbose logging
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```
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`--screenshot` requires a render-enabled build. It uses a 1280×720 viewport by
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default and may be combined with `--eval`; the expression runs before capture,
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which is useful for scrolling or preparing page state. It is not available in
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`--file` batch mode.
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When `--wait` is omitted, Obscura drives timers and async work until the page
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becomes quiescent, with a five-second ceiling. Supplying `--wait N` instead
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requests a fixed `N`-second delay. `--timeout` separately bounds navigation.
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`--dump` values:
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| Value | Output |
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| ---------- | --------------------------------------------------------- |
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| `html` | Rendered HTML (default) |
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| `text` | Plain text |
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| `markdown` | Markdown conversion |
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| `links` | Every `<a href>`, one URL per line |
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| `assets` | Every external resource, one JSON object per line (DOM assets plus `fetch()`/XHR requests) |
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| `original` | Raw HTTP response body (binary-safe, bypasses the engine) |
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| `cookies` | All cookies in the jar as a JSON array, including HttpOnly cookies invisible to `document.cookie` |
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## `obscura serve`
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Run the CDP server. Puppeteer and Playwright connect over WebSocket.
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```
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-p, --port <PORT> CDP port (default 9222)
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--host <HOST> Bind host (default 127.0.0.1)
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--proxy <URL> HTTP or SOCKS5 proxy
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--user-agent <UA> Override the User-Agent
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--stealth Consistent browser fingerprint + tracker blocking (global)
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--workers <N> Worker processes (default 1)
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--font-dir <DIR> Recursively load fonts once per worker (repeatable; render build)
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--allow-file-access Permit CDP clients to navigate to file:// URLs
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--storage-dir <DIR> Persistent cookies and localStorage
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--allow-private-network Permit loopback / RFC1918 / link-local
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-q, --quiet Suppress info logging
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-v, --verbose Enable info logging
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```
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Default endpoint is `ws://127.0.0.1:9222`.
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## `obscura scrape [URLS]...`
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Run a JS expression across many URLs in parallel.
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```
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-e, --eval <JS> JS to run on each page
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--concurrency <N> Parallel pages (default 10)
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--format <FORMAT> Output format (default json)
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--timeout <SECONDS> Per-URL timeout (default 60)
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--proxy <URL> HTTP or SOCKS5 proxy
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--stealth Consistent browser fingerprint + tracker blocking (global)
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--allow-private-network Permit loopback / RFC1918 / link-local
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-q, --quiet Suppress info logging
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-v, --verbose Enable verbose logging
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```
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`--stealth`, `--proxy`, and `--allow-private-network` are global flags: they work before or after any subcommand, so each worker in a `scrape` run inherits stealth too.
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Read URLs from stdin with `-`:
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```bash
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cat urls.txt | obscura scrape - --eval "document.title" --concurrency 20
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```
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Requires `obscura-worker` next to `obscura` in `PATH`.
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## `obscura mcp`
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Run obscura as an MCP server.
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```
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--http HTTP transport instead of stdio
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--host <HOST> HTTP bind host (default 127.0.0.1)
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--port <PORT> HTTP port (default 3000)
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--proxy <URL> HTTP or SOCKS5 proxy
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--user-agent <UA> Override the User-Agent
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--stealth Consistent browser fingerprint + tracker blocking (global)
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--allow-private-network Permit loopback / RFC1918 / link-local
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-v, --verbose Enable info logging
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```
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`--host` only applies with `--http`. The default `127.0.0.1` keeps the server loopback-only. A non-loopback bind requires `OBSCURA_MCP_TOKEN` (at least 32 bytes); use `OBSCURA_MCP_ALLOWED_ORIGINS` as well when a browser-based client needs access.
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Default transport is stdio. See [Use the MCP server](Use-the-MCP-server.md).
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Render-enabled builds add `browser_screenshot` and `browser_pdf` to the MCP
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tool list. Streaming screencasts are available through CDP rather than MCP.
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## Worker navigation responses
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`obscura-worker` accepts newline-delimited JSON commands on stdin and emits one
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JSON response per command on stdout. For example:
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```json
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{"cmd":"navigate","url":"https://example.com/"}
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```
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A completed navigation includes the final document's HTTP status alongside the
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existing title and URL:
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```json
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{"ok":true,"result":{"title":"Example Domain","url":"https://example.com/","status":200}}
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```
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`status` is the main document's final HTTP response code after redirects, not a
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script, image, or child frame's response. HTTP errors such as 404 and 503 still
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return `ok: true`: the server responded and the error document can be inspected
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with `dump_html`, `dump_text`, or `evaluate`. Navigation without an HTTP response,
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such as `about:blank`, a `data:` URL, or a tracker blocked before the request,
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returns `status: null`. A transport or
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navigation failure retains the existing `{"ok":false,"error":"..."}` envelope
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without a `result` object.
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The status field is additive. Navigation timing and the other worker commands
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are unchanged.
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