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|
use std::str::FromStr;
use serde::Deserialize;
use askama::Template;
use axum::{
extract::State,
routing::get,
Router,
response::Html,
Form,
http::StatusCode,
};
use tower_http::services::ServeDir;
use crate::config;
use crate::SharedState;
pub async fn serve(port: u16, shared_state: SharedState) {
let app = Router::new()
.route("/", get(dashboard))
.route("/incoming", get(incoming))
.route("/send", get(send))
.route("/settings", get(show_settings).post(post_settings))
.nest_service("/static", ServeDir::new("static"))
/* requires tracing and tower, e.g.
* tower = { version = "0.4", features = ["util", "timeout"] }
* tower-http = { version = "0.5.0", features = ["add-extension", "trace"] }
* tracing = "0.1"
* tracing-subscriber = { version = "0.3", features = ["env-filter"] }
.layer(
ServiceBuilder::new()
.layer(HandleErrorLayer::new(|error: BoxError| async move {
,if error.is::<tower::timeout::error::Elapsed>() {
Ok(StatusCode::REQUEST_TIMEOUT)
} else {
Err((
StatusCode::INTERNAL_SERVER_ERROR,
format!("Unhandled internal error: {error}"),
))
}
}))
.timeout(Duration::from_secs(10))
.layer(TraceLayer::new_for_http())
.into_inner(),
)*/
.with_state(shared_state);
let listener = tokio::net::TcpListener::bind(("0.0.0.0", port)).await.unwrap();
axum::serve(listener, app).await.unwrap()
}
#[derive(PartialEq)]
enum ActivePage {
Dashboard,
Incoming,
Send,
Settings,
}
#[derive(Template)]
#[template(path = "dashboard.html")]
struct DashboardTemplate<'a> {
title: &'a str,
page: ActivePage,
conf: config::Config,
}
async fn dashboard(State(state): State<SharedState>) -> DashboardTemplate<'static> {
DashboardTemplate {
title: "Dashboard",
conf: state.lock().unwrap().conf.clone(),
page: ActivePage::Dashboard,
}
}
#[derive(Template)]
#[template(path = "incoming.html")]
struct IncomingTemplate<'a> {
title: &'a str,
page: ActivePage,
conf: config::Config,
}
async fn incoming(State(state): State<SharedState>) -> IncomingTemplate<'static> {
IncomingTemplate {
title: "Incoming",
conf: state.lock().unwrap().conf.clone(),
page: ActivePage::Incoming,
}
}
#[derive(Template)]
#[template(path = "send.html")]
struct SendTemplate<'a> {
title: &'a str,
page: ActivePage,
conf: config::Config,
}
async fn send(State(state): State<SharedState>) -> SendTemplate<'static> {
SendTemplate {
title: "Send",
conf: state.lock().unwrap().conf.clone(),
page: ActivePage::Send,
}
}
#[derive(Template)]
#[template(path = "settings.html")]
struct SettingsTemplate<'a> {
title: &'a str,
page: ActivePage,
conf: config::Config,
}
async fn show_settings(State(state): State<SharedState>) -> SettingsTemplate<'static> {
SettingsTemplate {
title: "Settings",
page: ActivePage::Settings,
conf: state.lock().unwrap().conf.clone(),
}
}
#[derive(Deserialize, Debug)]
struct FormConfig {
callsign: String,
ssid: String,
icon: String,
// felinet
// felinet_enabled is either "on" or absent.
// According to https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Input/checkbox
// "If the value attribute was omitted, the default value for the checkbox is `on` [...]"
felinet_enabled: Option<String>,
address: String,
// beacon
period_seconds: config::DurationSeconds,
max_hops: u8,
latitude: String,
longitude: String,
altitude: String,
comment: String,
antenna_height: String,
antenna_gain: String,
tx_power: String,
// tunnel
tunnel_enabled: Option<String>,
local_ip: String,
netmask: String,
}
fn empty_string_to_none<T: FromStr + Sync>(value: &str) -> Result<Option<T>, T::Err> {
if value == "" {
Ok(None)
}
else {
Ok(Some(value.parse()?))
}
}
impl TryFrom<FormConfig> for config::Config {
type Error = anyhow::Error;
fn try_from(value: FormConfig) -> Result<Self, Self::Error> {
Ok(config::Config {
callsign: value.callsign,
ssid: value.ssid.parse()?,
icon: value.icon.parse()?,
felinet: config::FelinetConfig {
enabled: value.felinet_enabled.is_some(),
address: value.address,
},
beacon: config::BeaconConfig {
period_seconds: value.period_seconds,
max_hops: value.max_hops,
latitude: empty_string_to_none(&value.latitude)?,
longitude: empty_string_to_none(&value.longitude)?,
altitude: empty_string_to_none(&value.altitude)?,
comment: empty_string_to_none(&value.comment)?,
antenna_height: empty_string_to_none(&value.antenna_height)?,
antenna_gain: empty_string_to_none(&value.antenna_gain)?,
tx_power: empty_string_to_none(&value.tx_power)?,
},
tunnel: config::TunnelConfig {
enabled: value.tunnel_enabled.is_some(),
local_ip: value.local_ip,
netmask: value.netmask,
},
})
}
}
async fn post_settings(State(state): State<SharedState>, Form(input): Form<FormConfig>) -> (StatusCode, Html<String>) {
match config::Config::try_from(input) {
Ok(c) => {
match c.store() {
Ok(()) => {
state.lock().unwrap().conf.clone_from(&c);
(StatusCode::OK, Html(
r#"<!doctype html>
<html><head></head><body>
<p>Configuration updated</p>
<p>To <a href="/">dashboard</a></p>
</body></html>"#.to_owned()))
}
Err(e) => {
(StatusCode::INTERNAL_SERVER_ERROR, Html(
format!(r#"<!doctype html>
<html><head></head>
<body><p>Internal Server Error: Could not write config</p>
<p>{}</p>
</body>
</html>"#, e)))
},
}
},
Err(e) => {
(StatusCode::BAD_REQUEST, Html(
format!(r#"<!doctype html>
<html><head></head>
<body><p>Error interpreting POST data</p>
<p>{}</p>
</body>
</html>"#, e)))
},
}
}
|
