-
Notifications
You must be signed in to change notification settings - Fork 189
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
4 changed files
with
192 additions
and
87 deletions.
There are no files selected for viewing
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,113 +1,178 @@ | ||
| use std::convert::Infallible; | ||
| use std::future::Future; | ||
| use std::net::{IpAddr, SocketAddr}; | ||
| use std::sync::Arc; | ||
| use std::time::Duration; | ||
|
|
||
| use http::header::CONTENT_TYPE; | ||
| use http::{HeaderName, Method}; | ||
| use hyper::client::connect::dns::GaiResolver; | ||
| use hyper::client::HttpConnector; | ||
| use hyper::server::conn::AddrStream; | ||
| use hyper::service::make_service_fn; | ||
| use hyper::{Body, Request, Response, Server, StatusCode}; | ||
| use hyper_reverse_proxy::ReverseProxy; | ||
| use serde_json::json; | ||
| use tokio::sync::RwLock; | ||
| use tower::ServiceBuilder; | ||
| use tower_http::cors::{AllowOrigin, CorsLayer}; | ||
|
|
||
| const DEFAULT_ALLOW_HEADERS: [&str; 7] = [ | ||
| const DEFAULT_ALLOW_HEADERS: [&str; 12] = [ | ||
| "accept", | ||
| "origin", | ||
| "content-type", | ||
| "access-control-allow-origin", | ||
| "upgrade", | ||
| "x-grpc-web", | ||
| "x-grpc-timeout", | ||
| "x-user-agent", | ||
| "connection", | ||
| "upgrade", | ||
| "sec-websocket-key", | ||
| "sec-websocket-version", | ||
| ]; | ||
| const DEFAULT_EXPOSED_HEADERS: [&str; 3] = | ||
| ["grpc-status", "grpc-message", "grpc-status-details-bin"]; | ||
| const DEFAULT_MAX_AGE: Duration = Duration::from_secs(24 * 60 * 60); | ||
|
|
||
| // async fn model_registered_listener(notify_restart: Arc<Notify>) { | ||
| // while (SimpleBroker::<Model>::subscribe().next().await).is_some() { | ||
| // notify_restart.notify_one(); | ||
| // } | ||
| // } | ||
| lazy_static::lazy_static! { | ||
| static ref PROXY_CLIENT: ReverseProxy<HttpConnector<GaiResolver>> = { | ||
| ReverseProxy::new( | ||
| hyper::Client::new(), | ||
| ) | ||
| }; | ||
| } | ||
|
|
||
| fn debug_request(req: Request<Body>) -> Result<Response<Body>, Infallible> { | ||
| let body_str = format!("{:?}", req); | ||
| Ok(Response::new(Body::from(body_str))) | ||
| pub struct Proxy { | ||
| addr: SocketAddr, | ||
| allowed_origins: Vec<String>, | ||
| grpc_addr: Option<SocketAddr>, | ||
| graphql_addr: Arc<RwLock<Option<SocketAddr>>>, | ||
| } | ||
|
|
||
| impl Proxy { | ||
| pub fn new( | ||
| addr: SocketAddr, | ||
| allowed_origins: Vec<String>, | ||
| grpc_addr: Option<SocketAddr>, | ||
| graphql_addr: Option<SocketAddr>, | ||
| ) -> Self { | ||
| Self { addr, allowed_origins, grpc_addr, graphql_addr: Arc::new(RwLock::new(graphql_addr)) } | ||
| } | ||
|
|
||
| pub async fn set_graphql_addr(&self, addr: SocketAddr) { | ||
| let mut graphql_addr = self.graphql_addr.write().await; | ||
| *graphql_addr = Some(addr); | ||
| } | ||
|
|
||
| pub async fn start( | ||
| &self, | ||
| mut shutdown_rx: tokio::sync::broadcast::Receiver<()>, | ||
| ) -> Result<(), hyper::Error> { | ||
| let addr = self.addr; | ||
| let allowed_origins = self.allowed_origins.clone(); | ||
| let grpc_addr = self.grpc_addr; | ||
| let graphql_addr = self.graphql_addr.clone(); | ||
|
|
||
| let make_svc = make_service_fn(move |conn: &AddrStream| { | ||
| let remote_addr = conn.remote_addr().ip(); | ||
| let cors = CorsLayer::new() | ||
| .max_age(DEFAULT_MAX_AGE) | ||
| .allow_methods([Method::GET, Method::POST]) | ||
| .allow_headers( | ||
| DEFAULT_ALLOW_HEADERS | ||
| .iter() | ||
| .cloned() | ||
| .map(HeaderName::from_static) | ||
| .collect::<Vec<HeaderName>>(), | ||
| ) | ||
| .expose_headers( | ||
| DEFAULT_EXPOSED_HEADERS | ||
| .iter() | ||
| .cloned() | ||
| .map(HeaderName::from_static) | ||
| .collect::<Vec<HeaderName>>(), | ||
| ); | ||
|
|
||
| let cors = match allowed_origins.as_slice() { | ||
| [origin] if origin == "*" => cors.allow_origin(AllowOrigin::mirror_request()), | ||
| origins => cors.allow_origin( | ||
| origins.iter().map(|o| o.parse().expect("valid origin")).collect::<Vec<_>>(), | ||
| ), | ||
| }; | ||
|
|
||
| let graphql_addr_clone = graphql_addr.clone(); | ||
| let service = ServiceBuilder::new().layer(cors).service_fn(move |req| { | ||
| let graphql_addr = graphql_addr_clone.clone(); | ||
| async move { | ||
| let graphql_addr = graphql_addr.read().await; | ||
| handle(remote_addr, grpc_addr, *graphql_addr, req).await | ||
| } | ||
| }); | ||
|
|
||
| async { Ok::<_, Infallible>(service) } | ||
| }); | ||
|
|
||
| let server = Server::bind(&addr).serve(make_svc); | ||
| server | ||
| .with_graceful_shutdown(async move { | ||
| // Wait for the shutdown signal | ||
| shutdown_rx.recv().await.ok(); | ||
| }) | ||
| .await | ||
| } | ||
| } | ||
|
|
||
| async fn handle( | ||
| client_ip: IpAddr, | ||
| grpc_addr: String, | ||
| graphql_addr: String, | ||
| grpc_addr: Option<SocketAddr>, | ||
| graphql_addr: Option<SocketAddr>, | ||
| req: Request<Body>, | ||
| ) -> Result<Response<Body>, Infallible> { | ||
| if req.uri().path().starts_with("/grpc") { | ||
| match hyper_reverse_proxy::call(client_ip, &grpc_addr, req).await { | ||
| Ok(response) => Ok(response), | ||
| Err(_error) => Ok(Response::builder() | ||
| .status(StatusCode::INTERNAL_SERVER_ERROR) | ||
| if let Some(grpc_addr) = grpc_addr { | ||
| let grpc_addr = format!("http://{}", grpc_addr); | ||
| return match PROXY_CLIENT.call(client_ip, &grpc_addr, req).await { | ||
| Ok(response) => Ok(response), | ||
| Err(_error) => Ok(Response::builder() | ||
| .status(StatusCode::INTERNAL_SERVER_ERROR) | ||
| .body(Body::empty()) | ||
| .unwrap()), | ||
| }; | ||
| } else { | ||
| return Ok(Response::builder() | ||
| .status(StatusCode::NOT_FOUND) | ||
| .body(Body::empty()) | ||
| .unwrap()), | ||
| .unwrap()); | ||
| } | ||
| } else if req.uri().path().starts_with("/graphql") { | ||
| match hyper_reverse_proxy::call(client_ip, &graphql_addr, req).await { | ||
| Ok(response) => Ok(response), | ||
| Err(_error) => Ok(Response::builder() | ||
| .status(StatusCode::INTERNAL_SERVER_ERROR) | ||
| } | ||
|
|
||
| if req.uri().path().starts_with("/graphql") { | ||
| if let Some(graphql_addr) = graphql_addr { | ||
| let graphql_addr = format!("http://{}", graphql_addr); | ||
| return match PROXY_CLIENT.call(client_ip, &graphql_addr, req).await { | ||
| Ok(response) => Ok(response), | ||
| Err(_error) => Ok(Response::builder() | ||
| .status(StatusCode::INTERNAL_SERVER_ERROR) | ||
| .body(Body::empty()) | ||
| .unwrap()), | ||
| }; | ||
| } else { | ||
| return Ok(Response::builder() | ||
| .status(StatusCode::NOT_FOUND) | ||
| .body(Body::empty()) | ||
| .unwrap()), | ||
| .unwrap()); | ||
| } | ||
| } else { | ||
| debug_request(req) | ||
| } | ||
| } | ||
|
|
||
| pub async fn new( | ||
| mut shutdown_rx: tokio::sync::broadcast::Receiver<()>, | ||
| addr: SocketAddr, | ||
| allowed_origins: Vec<String>, | ||
| grpc_addr: SocketAddr, | ||
| graphql_addr: SocketAddr, | ||
| ) -> impl Future<Output = Result<(), hyper::Error>> + 'static { | ||
| let make_svc = make_service_fn(move |conn: &AddrStream| { | ||
| let remote_addr = conn.remote_addr().ip(); | ||
| let grpc_addr = format!("http://{}", grpc_addr); | ||
| let graphql_addr = format!("http://{}", graphql_addr); | ||
|
|
||
| let cors = CorsLayer::new() | ||
| .max_age(DEFAULT_MAX_AGE) | ||
| .allow_methods([Method::GET, Method::POST]) | ||
| .allow_headers( | ||
| DEFAULT_ALLOW_HEADERS | ||
| .iter() | ||
| .cloned() | ||
| .map(HeaderName::from_static) | ||
| .collect::<Vec<HeaderName>>(), | ||
| ) | ||
| .expose_headers( | ||
| DEFAULT_EXPOSED_HEADERS | ||
| .iter() | ||
| .cloned() | ||
| .map(HeaderName::from_static) | ||
| .collect::<Vec<HeaderName>>(), | ||
| ); | ||
|
|
||
| let cors = match allowed_origins.as_slice() { | ||
| [origin] if origin == "*" => cors.allow_origin(AllowOrigin::mirror_request()), | ||
| origins => cors.allow_origin( | ||
| origins.iter().map(|o| o.parse().expect("valid origin")).collect::<Vec<_>>(), | ||
| ), | ||
| }; | ||
|
|
||
| let service = ServiceBuilder::new().layer(cors).service_fn(move |req| { | ||
| handle(remote_addr, grpc_addr.clone(), graphql_addr.clone(), req) | ||
| }); | ||
|
|
||
| async { Ok::<_, Infallible>(service) } | ||
| let json = json!({ | ||
| "service": "torii", | ||
| "success": true | ||
| }); | ||
|
|
||
| let server = Server::bind(&addr).serve(make_svc); | ||
| server.with_graceful_shutdown(async move { | ||
| // Wait for the shutdown signal | ||
| shutdown_rx.recv().await.ok(); | ||
| }) | ||
| let body = Body::from(json.to_string()); | ||
| let response = Response::builder() | ||
| .status(StatusCode::OK) | ||
| .header(CONTENT_TYPE, "application/json") | ||
| .body(body) | ||
| .unwrap(); | ||
| Ok(response) | ||
| } |