actix_web_lab/
host.rs

1use std::convert::Infallible;
2
3use actix_utils::future::{ok, Ready};
4use actix_web::{dev::Payload, FromRequest, HttpRequest};
5
6/// Host information.
7///
8/// See [`ConnectionInfo::host()`](actix_web::dev::ConnectionInfo::host) for more.
9#[derive(Debug, Clone, PartialEq, Eq)]
10pub struct Host(String);
11
12impl_more::impl_as_ref!(Host => String);
13impl_more::impl_into!(Host => String);
14impl_more::forward_display!(Host);
15
16impl Host {
17    /// Unwraps into inner string value.
18    pub fn into_inner(self) -> String {
19        self.0
20    }
21}
22
23impl FromRequest for Host {
24    type Error = Infallible;
25    type Future = Ready<Result<Self, Self::Error>>;
26
27    #[inline]
28    fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future {
29        ok(Host(req.connection_info().host().to_owned()))
30    }
31}
32
33#[cfg(test)]
34mod tests {
35    use actix_web::{
36        http::StatusCode,
37        test::{self, TestRequest},
38        web, App, HttpResponse,
39    };
40
41    use super::*;
42
43    #[actix_web::test]
44    async fn extracts_host() {
45        let app =
46            test::init_service(App::new().default_service(web::to(|host: Host| async move {
47                HttpResponse::Ok().body(host.to_string())
48            })))
49            .await;
50
51        let req = TestRequest::default()
52            .insert_header(("host", "in-header.com"))
53            .to_request();
54        let res = test::call_service(&app, req).await;
55        assert_eq!(res.status(), StatusCode::OK);
56        assert_eq!(test::read_body(res).await, b"in-header.com".as_ref());
57
58        let req = TestRequest::default().uri("http://in-url.com").to_request();
59        let res = test::call_service(&app, req).await;
60        assert_eq!(res.status(), StatusCode::OK);
61        assert_eq!(test::read_body(res).await, b"in-url.com".as_ref());
62
63        let req = TestRequest::default().to_request();
64        let res = test::call_service(&app, req).await;
65        assert_eq!(res.status(), StatusCode::OK);
66        assert_eq!(test::read_body(res).await, b"localhost:8080".as_ref());
67    }
68}
actix_web_lab/host.rs

actix_web_lab/
host.rs
