INNER CODE UNIT · Python

_check_params_urls

tiliondev/fortress · mcp/server.py:146

async def _check_params_urls(params: dict | None) -> None:
    """Defense-in-depth: SSRF-check any URL-looking values a flow might navigate to."""
    for v in (params or {}).values():
        if isinstance(v, str) and v[:8].lower().startswith(("http://", "https:/")):
            await _check_url(v)


@asynccontextmanager
async def _lifespan(_server):
    """Pre-warm the stealth browser at server startup so the agent's FIRST tool
    call is a ~150ms warm hit, not a ~2.2s cold launch. Disable with
    TILION_MCP_PREWARM=0. Shuts the browser down cleanly on exit."""
    if _env("MCP_PREWARM", "1") != "0":
        try:
            await _t()
        except Exception:
            pass  # never let a pre-warm failure block the server
    try:

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