mirror of
https://github.com/actix/actix-extras.git
synced 2024-11-28 09:42:40 +01:00
612 lines
19 KiB
Rust
612 lines
19 KiB
Rust
use std::cell::RefCell;
|
|
use std::marker::PhantomData;
|
|
use std::rc::Rc;
|
|
|
|
use actix_http::body::{Body, MessageBody};
|
|
use actix_http::{Extensions, PayloadStream};
|
|
use actix_server_config::ServerConfig;
|
|
use actix_service::boxed::{self, BoxedNewService};
|
|
use actix_service::{
|
|
ApplyTransform, IntoNewService, IntoTransform, NewService, Transform,
|
|
};
|
|
use futures::IntoFuture;
|
|
|
|
use crate::app_service::{AppChain, AppEntry, AppInit, AppRouting, AppRoutingFactory};
|
|
use crate::resource::Resource;
|
|
use crate::route::Route;
|
|
use crate::service::{
|
|
HttpServiceFactory, ServiceFactory, ServiceFactoryWrapper, ServiceRequest,
|
|
ServiceResponse,
|
|
};
|
|
use crate::state::{State, StateFactory};
|
|
|
|
type HttpNewService<P> = BoxedNewService<(), ServiceRequest<P>, ServiceResponse, (), ()>;
|
|
|
|
/// Application builder - structure that follows the builder pattern
|
|
/// for building application instances.
|
|
pub struct App<P, T>
|
|
where
|
|
T: NewService<Request = ServiceRequest, Response = ServiceRequest<P>>,
|
|
{
|
|
chain: T,
|
|
extensions: Extensions,
|
|
state: Vec<Box<StateFactory>>,
|
|
host: String,
|
|
_t: PhantomData<(P,)>,
|
|
}
|
|
|
|
impl App<PayloadStream, AppChain> {
|
|
/// Create application builder with empty state. Application can
|
|
/// be configured with a builder-like pattern.
|
|
pub fn new() -> Self {
|
|
App {
|
|
chain: AppChain,
|
|
extensions: Extensions::new(),
|
|
state: Vec::new(),
|
|
host: "localhost:8080".to_string(),
|
|
_t: PhantomData,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<P, T> App<P, T>
|
|
where
|
|
P: 'static,
|
|
T: NewService<
|
|
Request = ServiceRequest,
|
|
Response = ServiceRequest<P>,
|
|
Error = (),
|
|
InitError = (),
|
|
>,
|
|
{
|
|
/// Set application state. Applicatin state could be accessed
|
|
/// by using `State<T>` extractor where `T` is state type.
|
|
///
|
|
/// **Note**: http server accepts an application factory rather than
|
|
/// an application instance. Http server constructs an application
|
|
/// instance for each thread, thus application state must be constructed
|
|
/// multiple times. If you want to share state between different
|
|
/// threads, a shared object should be used, e.g. `Arc`. Application
|
|
/// state does not need to be `Send` or `Sync`.
|
|
///
|
|
/// ```rust
|
|
/// use std::cell::Cell;
|
|
/// use actix_web::{web, App};
|
|
///
|
|
/// struct MyState {
|
|
/// counter: Cell<usize>,
|
|
/// }
|
|
///
|
|
/// fn index(state: web::State<MyState>) {
|
|
/// state.counter.set(state.counter.get() + 1);
|
|
/// }
|
|
///
|
|
/// fn main() {
|
|
/// let app = App::new()
|
|
/// .state(MyState{ counter: Cell::new(0) })
|
|
/// .service(
|
|
/// web::resource("/index.html").route(
|
|
/// web::get().to(index)));
|
|
/// }
|
|
/// ```
|
|
pub fn state<S: 'static>(mut self, state: S) -> Self {
|
|
self.state.push(Box::new(State::new(state)));
|
|
self
|
|
}
|
|
|
|
/// Set application state factory. This function is
|
|
/// similar to `.state()` but it accepts state factory. State get
|
|
/// constructed asynchronously during application initialization.
|
|
pub fn state_factory<F, Out>(mut self, state: F) -> Self
|
|
where
|
|
F: Fn() -> Out + 'static,
|
|
Out: IntoFuture + 'static,
|
|
Out::Error: std::fmt::Debug,
|
|
{
|
|
self.state.push(Box::new(state));
|
|
self
|
|
}
|
|
|
|
/// Register a middleware.
|
|
pub fn middleware<M, B, F>(
|
|
self,
|
|
mw: F,
|
|
) -> AppRouter<
|
|
T,
|
|
P,
|
|
B,
|
|
impl NewService<
|
|
Request = ServiceRequest<P>,
|
|
Response = ServiceResponse<B>,
|
|
Error = (),
|
|
InitError = (),
|
|
>,
|
|
>
|
|
where
|
|
M: Transform<
|
|
AppRouting<P>,
|
|
Request = ServiceRequest<P>,
|
|
Response = ServiceResponse<B>,
|
|
Error = (),
|
|
InitError = (),
|
|
>,
|
|
F: IntoTransform<M, AppRouting<P>>,
|
|
{
|
|
let fref = Rc::new(RefCell::new(None));
|
|
let endpoint = ApplyTransform::new(mw, AppEntry::new(fref.clone()));
|
|
AppRouter {
|
|
endpoint,
|
|
chain: self.chain,
|
|
state: self.state,
|
|
services: Vec::new(),
|
|
default: None,
|
|
factory_ref: fref,
|
|
extensions: self.extensions,
|
|
host: self.host,
|
|
_t: PhantomData,
|
|
}
|
|
}
|
|
|
|
/// Register a request modifier. It can modify any request parameters
|
|
/// including payload stream.
|
|
pub fn chain<C, F, P1>(
|
|
self,
|
|
chain: C,
|
|
) -> App<
|
|
P1,
|
|
impl NewService<
|
|
Request = ServiceRequest,
|
|
Response = ServiceRequest<P1>,
|
|
Error = (),
|
|
InitError = (),
|
|
>,
|
|
>
|
|
where
|
|
C: NewService<
|
|
Request = ServiceRequest<P>,
|
|
Response = ServiceRequest<P1>,
|
|
Error = (),
|
|
InitError = (),
|
|
>,
|
|
F: IntoNewService<C>,
|
|
{
|
|
let chain = self.chain.and_then(chain.into_new_service());
|
|
App {
|
|
chain,
|
|
state: self.state,
|
|
extensions: self.extensions,
|
|
host: self.host,
|
|
_t: PhantomData,
|
|
}
|
|
}
|
|
|
|
/// Configure route for a specific path.
|
|
///
|
|
/// This is a simplified version of the `App::service()` method.
|
|
/// This method can not be could multiple times, in that case
|
|
/// multiple resources with one route would be registered for same resource path.
|
|
///
|
|
/// ```rust
|
|
/// use actix_web::{web, App, HttpResponse};
|
|
///
|
|
/// fn index(data: web::Path<(String, String)>) -> &'static str {
|
|
/// "Welcome!"
|
|
/// }
|
|
///
|
|
/// fn main() {
|
|
/// let app = App::new()
|
|
/// .route("/test1", web::get().to(index))
|
|
/// .route("/test2", web::post().to(|| HttpResponse::MethodNotAllowed()));
|
|
/// }
|
|
/// ```
|
|
pub fn route(
|
|
self,
|
|
path: &str,
|
|
mut route: Route<P>,
|
|
) -> AppRouter<T, P, Body, AppEntry<P>> {
|
|
self.service(
|
|
Resource::new(path)
|
|
.add_guards(route.take_guards())
|
|
.route(route),
|
|
)
|
|
}
|
|
|
|
/// Register http service.
|
|
pub fn service<F>(self, service: F) -> AppRouter<T, P, Body, AppEntry<P>>
|
|
where
|
|
F: HttpServiceFactory<P> + 'static,
|
|
{
|
|
let fref = Rc::new(RefCell::new(None));
|
|
|
|
AppRouter {
|
|
chain: self.chain,
|
|
default: None,
|
|
endpoint: AppEntry::new(fref.clone()),
|
|
factory_ref: fref,
|
|
extensions: self.extensions,
|
|
state: self.state,
|
|
host: self.host,
|
|
services: vec![Box::new(ServiceFactoryWrapper::new(service))],
|
|
_t: PhantomData,
|
|
}
|
|
}
|
|
|
|
/// Set server host name.
|
|
///
|
|
/// Host name is used by application router aa a hostname for url
|
|
/// generation. Check [ConnectionInfo](./dev/struct.ConnectionInfo.
|
|
/// html#method.host) documentation for more information.
|
|
///
|
|
/// By default host name is set to a "localhost" value.
|
|
pub fn hostname(mut self, val: &str) -> Self {
|
|
self.host = val.to_owned();
|
|
self
|
|
}
|
|
}
|
|
|
|
/// Application router builder - Structure that follows the builder pattern
|
|
/// for building application instances.
|
|
pub struct AppRouter<C, P, B, T> {
|
|
chain: C,
|
|
endpoint: T,
|
|
services: Vec<Box<ServiceFactory<P>>>,
|
|
default: Option<Rc<HttpNewService<P>>>,
|
|
factory_ref: Rc<RefCell<Option<AppRoutingFactory<P>>>>,
|
|
extensions: Extensions,
|
|
state: Vec<Box<StateFactory>>,
|
|
host: String,
|
|
_t: PhantomData<(P, B)>,
|
|
}
|
|
|
|
impl<C, P, B, T> AppRouter<C, P, B, T>
|
|
where
|
|
P: 'static,
|
|
B: MessageBody,
|
|
T: NewService<
|
|
Request = ServiceRequest<P>,
|
|
Response = ServiceResponse<B>,
|
|
Error = (),
|
|
InitError = (),
|
|
>,
|
|
{
|
|
/// Configure route for a specific path.
|
|
///
|
|
/// This is a simplified version of the `App::service()` method.
|
|
/// This method can not be could multiple times, in that case
|
|
/// multiple resources with one route would be registered for same resource path.
|
|
///
|
|
/// ```rust
|
|
/// use actix_web::{web, App, HttpResponse};
|
|
///
|
|
/// fn index(data: web::Path<(String, String)>) -> &'static str {
|
|
/// "Welcome!"
|
|
/// }
|
|
///
|
|
/// fn main() {
|
|
/// let app = App::new()
|
|
/// .route("/test1", web::get().to(index))
|
|
/// .route("/test2", web::post().to(|| HttpResponse::MethodNotAllowed()));
|
|
/// }
|
|
/// ```
|
|
pub fn route(self, path: &str, mut route: Route<P>) -> Self {
|
|
self.service(
|
|
Resource::new(path)
|
|
.add_guards(route.take_guards())
|
|
.route(route),
|
|
)
|
|
}
|
|
|
|
/// Register http service.
|
|
///
|
|
/// Http service is any type that implements `HttpServiceFactory` trait.
|
|
///
|
|
/// Actix web provides several services implementations:
|
|
///
|
|
/// * *Resource* is an entry in route table which corresponds to requested URL.
|
|
/// * *Scope* is a set of resources with common root path.
|
|
/// * "StaticFiles" is a service for static files support
|
|
pub fn service<F>(mut self, factory: F) -> Self
|
|
where
|
|
F: HttpServiceFactory<P> + 'static,
|
|
{
|
|
self.services
|
|
.push(Box::new(ServiceFactoryWrapper::new(factory)));
|
|
self
|
|
}
|
|
|
|
/// Register a middleware.
|
|
pub fn middleware<M, B1, F>(
|
|
self,
|
|
mw: F,
|
|
) -> AppRouter<
|
|
C,
|
|
P,
|
|
B1,
|
|
impl NewService<
|
|
Request = ServiceRequest<P>,
|
|
Response = ServiceResponse<B1>,
|
|
Error = (),
|
|
InitError = (),
|
|
>,
|
|
>
|
|
where
|
|
M: Transform<
|
|
T::Service,
|
|
Request = ServiceRequest<P>,
|
|
Response = ServiceResponse<B1>,
|
|
Error = (),
|
|
InitError = (),
|
|
>,
|
|
B1: MessageBody,
|
|
F: IntoTransform<M, T::Service>,
|
|
{
|
|
let endpoint = ApplyTransform::new(mw, self.endpoint);
|
|
AppRouter {
|
|
endpoint,
|
|
chain: self.chain,
|
|
state: self.state,
|
|
services: self.services,
|
|
default: self.default,
|
|
factory_ref: self.factory_ref,
|
|
extensions: self.extensions,
|
|
host: self.host,
|
|
_t: PhantomData,
|
|
}
|
|
}
|
|
|
|
/// Default resource to be used if no matching route could be found.
|
|
///
|
|
/// Default resource works with resources only and does not work with
|
|
/// custom services.
|
|
pub fn default_resource<F, U>(mut self, f: F) -> Self
|
|
where
|
|
F: FnOnce(Resource<P>) -> Resource<P, U>,
|
|
U: NewService<
|
|
Request = ServiceRequest<P>,
|
|
Response = ServiceResponse,
|
|
Error = (),
|
|
InitError = (),
|
|
> + 'static,
|
|
{
|
|
// create and configure default resource
|
|
self.default = Some(Rc::new(boxed::new_service(
|
|
f(Resource::new("")).into_new_service().map_init_err(|_| ()),
|
|
)));
|
|
|
|
self
|
|
}
|
|
|
|
/// Register an external resource.
|
|
///
|
|
/// External resources are useful for URL generation purposes only
|
|
/// and are never considered for matching at request time. Calls to
|
|
/// `HttpRequest::url_for()` will work as expected.
|
|
///
|
|
/// ```rust,ignore
|
|
/// # extern crate actix_web;
|
|
/// use actix_web::{App, HttpRequest, HttpResponse, Result};
|
|
///
|
|
/// fn index(req: &HttpRequest) -> Result<HttpResponse> {
|
|
/// let url = req.url_for("youtube", &["oHg5SJYRHA0"])?;
|
|
/// assert_eq!(url.as_str(), "https://youtube.com/watch/oHg5SJYRHA0");
|
|
/// Ok(HttpResponse::Ok().into())
|
|
/// }
|
|
///
|
|
/// fn main() {
|
|
/// let app = App::new()
|
|
/// .resource("/index.html", |r| r.get().f(index))
|
|
/// .external_resource("youtube", "https://youtube.com/watch/{video_id}")
|
|
/// .finish();
|
|
/// }
|
|
/// ```
|
|
pub fn external_resource<N, U>(self, _name: N, _url: U) -> Self
|
|
where
|
|
N: AsRef<str>,
|
|
U: AsRef<str>,
|
|
{
|
|
// self.parts
|
|
// .as_mut()
|
|
// .expect("Use after finish")
|
|
// .router
|
|
// .register_external(name.as_ref(), ResourceDef::external(url.as_ref()));
|
|
self
|
|
}
|
|
}
|
|
|
|
impl<C, T, P: 'static, B: MessageBody> IntoNewService<AppInit<C, T, P, B>, ServerConfig>
|
|
for AppRouter<C, P, B, T>
|
|
where
|
|
T: NewService<
|
|
Request = ServiceRequest<P>,
|
|
Response = ServiceResponse<B>,
|
|
Error = (),
|
|
InitError = (),
|
|
>,
|
|
C: NewService<
|
|
Request = ServiceRequest,
|
|
Response = ServiceRequest<P>,
|
|
Error = (),
|
|
InitError = (),
|
|
>,
|
|
{
|
|
fn into_new_service(self) -> AppInit<C, T, P, B> {
|
|
AppInit {
|
|
chain: self.chain,
|
|
state: self.state,
|
|
endpoint: self.endpoint,
|
|
services: RefCell::new(self.services),
|
|
default: self.default,
|
|
factory_ref: self.factory_ref,
|
|
extensions: Rc::new(RefCell::new(Rc::new(self.extensions))),
|
|
}
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use actix_service::Service;
|
|
|
|
use super::*;
|
|
use crate::http::{Method, StatusCode};
|
|
use crate::test::{block_on, init_service, TestRequest};
|
|
use crate::{web, HttpResponse};
|
|
|
|
#[test]
|
|
fn test_default_resource() {
|
|
let mut srv = init_service(
|
|
App::new().service(web::resource("/test").to(|| HttpResponse::Ok())),
|
|
);
|
|
let req = TestRequest::with_uri("/test").to_request();
|
|
let resp = block_on(srv.call(req)).unwrap();
|
|
assert_eq!(resp.status(), StatusCode::OK);
|
|
|
|
let req = TestRequest::with_uri("/blah").to_request();
|
|
let resp = block_on(srv.call(req)).unwrap();
|
|
assert_eq!(resp.status(), StatusCode::NOT_FOUND);
|
|
|
|
let mut srv = init_service(
|
|
App::new()
|
|
.service(web::resource("/test").to(|| HttpResponse::Ok()))
|
|
.service(
|
|
web::resource("/test2")
|
|
.default_resource(|r| r.to(|| HttpResponse::Created()))
|
|
.route(web::get().to(|| HttpResponse::Ok())),
|
|
)
|
|
.default_resource(|r| r.to(|| HttpResponse::MethodNotAllowed())),
|
|
);
|
|
|
|
let req = TestRequest::with_uri("/blah").to_request();
|
|
let resp = block_on(srv.call(req)).unwrap();
|
|
assert_eq!(resp.status(), StatusCode::METHOD_NOT_ALLOWED);
|
|
|
|
let req = TestRequest::with_uri("/test2").to_request();
|
|
let resp = block_on(srv.call(req)).unwrap();
|
|
assert_eq!(resp.status(), StatusCode::OK);
|
|
|
|
let req = TestRequest::with_uri("/test2")
|
|
.method(Method::POST)
|
|
.to_request();
|
|
let resp = block_on(srv.call(req)).unwrap();
|
|
assert_eq!(resp.status(), StatusCode::CREATED);
|
|
}
|
|
|
|
#[test]
|
|
fn test_state() {
|
|
let mut srv =
|
|
init_service(App::new().state(10usize).service(
|
|
web::resource("/").to(|_: web::State<usize>| HttpResponse::Ok()),
|
|
));
|
|
|
|
let req = TestRequest::default().to_request();
|
|
let resp = block_on(srv.call(req)).unwrap();
|
|
assert_eq!(resp.status(), StatusCode::OK);
|
|
|
|
let mut srv =
|
|
init_service(App::new().state(10u32).service(
|
|
web::resource("/").to(|_: web::State<usize>| HttpResponse::Ok()),
|
|
));
|
|
let req = TestRequest::default().to_request();
|
|
let resp = block_on(srv.call(req)).unwrap();
|
|
assert_eq!(resp.status(), StatusCode::INTERNAL_SERVER_ERROR);
|
|
}
|
|
|
|
#[test]
|
|
fn test_state_factory() {
|
|
let mut srv =
|
|
init_service(App::new().state_factory(|| Ok::<_, ()>(10usize)).service(
|
|
web::resource("/").to(|_: web::State<usize>| HttpResponse::Ok()),
|
|
));
|
|
let req = TestRequest::default().to_request();
|
|
let resp = block_on(srv.call(req)).unwrap();
|
|
assert_eq!(resp.status(), StatusCode::OK);
|
|
|
|
let mut srv =
|
|
init_service(App::new().state_factory(|| Ok::<_, ()>(10u32)).service(
|
|
web::resource("/").to(|_: web::State<usize>| HttpResponse::Ok()),
|
|
));
|
|
let req = TestRequest::default().to_request();
|
|
let resp = block_on(srv.call(req)).unwrap();
|
|
assert_eq!(resp.status(), StatusCode::INTERNAL_SERVER_ERROR);
|
|
}
|
|
|
|
// #[test]
|
|
// fn test_handler() {
|
|
// let app = App::new()
|
|
// .handler("/test", |_: &_| HttpResponse::Ok())
|
|
// .finish();
|
|
|
|
// let req = TestRequest::with_uri("/test").request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::OK);
|
|
|
|
// let req = TestRequest::with_uri("/test/").request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::OK);
|
|
|
|
// let req = TestRequest::with_uri("/test/app").request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::OK);
|
|
|
|
// let req = TestRequest::with_uri("/testapp").request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::NOT_FOUND);
|
|
|
|
// let req = TestRequest::with_uri("/blah").request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::NOT_FOUND);
|
|
// }
|
|
|
|
// #[test]
|
|
// fn test_handler2() {
|
|
// let app = App::new()
|
|
// .handler("test", |_: &_| HttpResponse::Ok())
|
|
// .finish();
|
|
|
|
// let req = TestRequest::with_uri("/test").request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::OK);
|
|
|
|
// let req = TestRequest::with_uri("/test/").request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::OK);
|
|
|
|
// let req = TestRequest::with_uri("/test/app").request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::OK);
|
|
|
|
// let req = TestRequest::with_uri("/testapp").request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::NOT_FOUND);
|
|
|
|
// let req = TestRequest::with_uri("/blah").request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::NOT_FOUND);
|
|
// }
|
|
|
|
// #[test]
|
|
// fn test_route() {
|
|
// let app = App::new()
|
|
// .route("/test", Method::GET, |_: HttpRequest| HttpResponse::Ok())
|
|
// .route("/test", Method::POST, |_: HttpRequest| {
|
|
// HttpResponse::Created()
|
|
// })
|
|
// .finish();
|
|
|
|
// let req = TestRequest::with_uri("/test").method(Method::GET).request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::OK);
|
|
|
|
// let req = TestRequest::with_uri("/test")
|
|
// .method(Method::POST)
|
|
// .request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::CREATED);
|
|
|
|
// let req = TestRequest::with_uri("/test")
|
|
// .method(Method::HEAD)
|
|
// .request();
|
|
// let resp = app.run(req);
|
|
// assert_eq!(resp.as_msg().status(), StatusCode::NOT_FOUND);
|
|
// }
|
|
}
|