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use std::convert::Infallible;
use std::net::SocketAddr;
use std::path::PathBuf;
use std::str::FromStr;
use std::sync::Arc;
use hyper::http::header;
use hyper::service::{make_service_fn, service_fn};
use hyper::{Body, Method, Request, Response};
use hyper::{Server, StatusCode};
use rand::Rng;
use crate::channel::{bounded, Sender};
use crate::core::cluster::StdResponse;
use crate::utils::fs::read_binary;
use crate::utils::http::server::{as_ok_json, page_not_found};
use crate::utils::thread::async_runtime_multi;
pub(crate) fn web_launch(context: Arc<crate::runtime::context::Context>) -> String {
let (tx, rx) = bounded(1);
std::thread::Builder::new()
.name("WebUI".to_string())
.spawn(move || {
async_runtime_multi("web", 2).block_on(async move {
let ip = context.bind_ip.clone();
let web_context = Arc::new(WebContext { context });
serve_with_rand_port(web_context, ip, tx).await;
});
})
.unwrap();
let bind_addr: SocketAddr = rx.recv().unwrap();
format!("http://{}", bind_addr.to_string())
}
struct WebContext {
context: Arc<crate::runtime::context::Context>,
}
async fn serve_with_rand_port(
web_context: Arc<WebContext>,
bind_id: String,
bind_addr_tx: Sender<SocketAddr>,
) {
let mut rng = rand::thread_rng();
for _ in 0..30 {
let port = rng.gen_range(10000..30000);
let address = format!("{}:{}", bind_id.as_str(), port);
let socket_addr = SocketAddr::from_str(address.as_str()).unwrap();
let serve_result = serve(web_context.clone(), &socket_addr, bind_addr_tx.clone()).await;
match serve_result {
Ok(_) => error!("server stop"),
Err(e) => info!("try bind failure> {}", e),
}
}
error!("no port can be bound");
}
async fn serve(
web_context: Arc<WebContext>,
bind_addr: &SocketAddr,
bind_addr_tx: Sender<SocketAddr>,
) -> anyhow::Result<()> {
let make_service = make_service_fn(move |_conn| {
let web_context = web_context.clone();
async move {
Ok::<_, Infallible>(service_fn(move |req| {
let web_context = web_context.clone();
route(req, web_context)
}))
}
});
let server = Server::try_bind(bind_addr)?.serve(make_service);
bind_addr_tx.send(bind_addr.clone()).unwrap();
if let Err(e) = server.await {
eprintln!("server error: {}", e);
}
Ok(())
}
async fn route(req: Request<Body>, web_context: Arc<WebContext>) -> anyhow::Result<Response<Body>> {
let path = req.uri().path();
let method = req.method();
if path.starts_with("/api/") {
if Method::GET.eq(method) {
match path {
"/api/threads" => get_thread_infos(req, web_context).await,
"/api/client/log/enable" => enable_client_log(req, web_context).await,
"/api/client/log/disable" => disable_client_log(req, web_context).await,
"/api/server/log/enable" => enable_server_log(req, web_context).await,
"/api/server/log/disable" => disable_server_log(req, web_context).await,
_ => page_not_found().await,
}
} else {
page_not_found().await
}
} else {
if Method::GET.eq(method) {
static_file(req, web_context).await
} else {
page_not_found().await
}
}
}
async fn enable_client_log(
_req: Request<Body>,
_context: Arc<WebContext>,
) -> anyhow::Result<Response<Body>> {
crate::pub_sub::network::client::enable_log();
as_ok_json(&StdResponse::ok(Some(true)))
}
async fn disable_client_log(
_req: Request<Body>,
_context: Arc<WebContext>,
) -> anyhow::Result<Response<Body>> {
crate::pub_sub::network::client::disable_log();
as_ok_json(&StdResponse::ok(Some(false)))
}
async fn enable_server_log(
_req: Request<Body>,
_context: Arc<WebContext>,
) -> anyhow::Result<Response<Body>> {
crate::pub_sub::network::server::enable_log();
as_ok_json(&StdResponse::ok(Some(true)))
}
async fn disable_server_log(
_req: Request<Body>,
_context: Arc<WebContext>,
) -> anyhow::Result<Response<Body>> {
crate::pub_sub::network::server::disable_log();
as_ok_json(&StdResponse::ok(Some(false)))
}
async fn get_thread_infos(
_req: Request<Body>,
_context: Arc<WebContext>,
) -> anyhow::Result<Response<Body>> {
let c = crate::utils::thread::get_thread_infos();
as_ok_json(&StdResponse::ok(Some(c)))
}
async fn static_file(
req: Request<Body>,
context: Arc<WebContext>,
) -> anyhow::Result<Response<Body>> {
let path = {
let mut path = req.uri().path();
if path.is_empty() || "/".eq(path) {
path = "/index.html";
};
&path[1..path.len()]
};
let static_file_path = {
let path = PathBuf::from_str(path)?;
let dashboard_path = context.context.dashboard_path.as_str();
let base_path = PathBuf::from_str(dashboard_path)?;
let n = base_path.join(path);
n
};
let ext = {
let ext_pos = path.rfind(".").ok_or(anyhow!("file ext name not found"))?;
&path[ext_pos + 1..path.len()]
};
let context_type = match ext {
"html" => "text/html; charset=utf-8",
"js" => "application/javascript",
"css" => "text/css",
"ico" => "image/x-icon",
"gif" => "image/gif",
"png" => "image/png",
"svg" => "image/svg+xml",
"woff" => "application/font-woff",
_ => "",
};
match read_binary(&static_file_path) {
Ok(context) => Response::builder()
.header(header::CONTENT_TYPE, context_type)
.status(StatusCode::OK)
.body(Body::from(context))
.map_err(|e| anyhow!(e)),
Err(e) => {
error!(
"static file not found. file path: {:?}, error: {}",
static_file_path, e
);
page_not_found().await
}
}
}