Files
yaak-mountain-loop/crates-server/yaak-web/src/config.rs
T

68 lines
3.2 KiB
Rust

use clap::Parser;
use std::net::SocketAddr;
use std::path::PathBuf;
/// The server behind Yaak running in a browser.
///
/// The tab renders the request and owns the data; this binary puts the bytes on the network
/// and streams back what came back, and with `--serve` hands the browser the app as well.
/// Nothing is written to disk or a database.
#[derive(Parser, Debug, Clone)]
#[command(name = "yaak-web", version, about, long_about = None)]
pub struct Config {
/// Address to listen on. 127.0.0.1 for a local instance; 0.0.0.0 inside a container.
#[arg(long, env = "YAAK_WEB_BIND", default_value = "127.0.0.1:9227")]
pub bind: SocketAddr,
/// Also serve a built web client from this directory, on the same origin as the API.
/// Unknown paths fall back to `index.html` so the app's own routes work on a refresh.
/// Without this the binary is only the send executor.
#[arg(long, env = "YAAK_WEB_SERVE", value_name = "DIR")]
pub serve: Option<PathBuf>,
/// Allow sends to loopback, private and link-local addresses. Off by default, because a
/// server reachable by strangers is an open relay into the network it sits on. Turn it on
/// only for an instance whose users are meant to reach that network — a self-hosted one
/// on a LAN, where the point is to call the API on the next machine.
#[arg(long, env = "YAAK_WEB_ALLOW_PRIVATE_NETWORKS", default_value_t = false)]
pub allow_private_networks: bool,
/// Browser origins allowed to call this server (CORS), comma-separated. `*` allows any.
/// A local dev instance wants the Vite origin; a hosted instance wants its own web origin.
#[arg(
long,
env = "YAAK_WEB_ALLOWED_ORIGINS",
default_value = "*",
value_delimiter = ','
)]
pub allowed_origins: Vec<String>,
/// Largest request the server accepts from the tab (the rendered request JSON, body included).
#[arg(long, env = "YAAK_WEB_MAX_REQUEST_BYTES", default_value_t = 16 * 1024 * 1024)]
pub max_request_bytes: usize,
/// Largest upstream response body the server will relay before cutting the send off.
#[arg(long, env = "YAAK_WEB_MAX_RESPONSE_BYTES", default_value_t = 64 * 1024 * 1024)]
pub max_response_bytes: usize,
/// Ceiling on a send's timeout, in seconds. A request asking for longer (or for no timeout)
/// gets this instead.
#[arg(long, env = "YAAK_WEB_MAX_TIMEOUT_SECS", default_value_t = 60)]
pub max_timeout_secs: u64,
/// Sends allowed per client IP per minute. 0 disables the limit. This and the concurrency
/// cap are the whole of what protects an instance: there is no authentication.
#[arg(long, env = "YAAK_WEB_RATE_LIMIT_PER_MINUTE", default_value_t = 120)]
pub rate_limit_per_minute: u32,
/// Sends in flight at once across all clients.
#[arg(long, env = "YAAK_WEB_MAX_CONCURRENT", default_value_t = 256)]
pub max_concurrent: usize,
/// Take the client IP from `X-Forwarded-For` (first hop) instead of the socket. Only turn
/// this on behind a load balancer that sets the header; otherwise anyone can spoof their way
/// past the rate limit.
#[arg(long, env = "YAAK_WEB_TRUST_FORWARDED_FOR", default_value_t = false)]
pub trust_forwarded_for: bool,
}