actix_state_guards/
transform.rs

1use crate::middleware::StateGuardMiddleware;
2use crate::Guard as GuardTrait;
3
4use std::future::{ready, Ready};
5use std::marker::PhantomData;
6use std::rc::Rc;
7
8use actix_web::body::MessageBody;
9use actix_web::dev::{Service as ServiceTrait, ServiceRequest, ServiceResponse, Transform};
10use actix_web::{Error as ActixWebError, FromRequest, ResponseError};
11
12pub struct StateGuard<Guard, Args, Error> {
13    guard: Rc<Guard>,
14    args_marker: PhantomData<Args>,
15    error_marker: PhantomData<Error>,
16}
17
18impl<Guard, Args, Error> StateGuard<Guard, Args, Error> {
19    pub fn new(guard: Guard) -> Self {
20        Self {
21            guard: Rc::new(guard),
22            args_marker: PhantomData,
23            error_marker: PhantomData,
24        }
25    }
26}
27
28impl<Service, Body, Guard, Args, Error> Transform<Service, ServiceRequest>
29    for StateGuard<Guard, Args, Error>
30where
31    Service: ServiceTrait<ServiceRequest, Response = ServiceResponse<Body>, Error = ActixWebError>
32        + 'static,
33    Body: MessageBody,
34    Guard: GuardTrait<Args, Error>,
35    Error: ResponseError + 'static,
36    Args: FromRequest,
37{
38    type Response = <StateGuardMiddleware<Service, Guard, Args, Error> as ServiceTrait<
39        ServiceRequest,
40    >>::Response;
41
42    type Error =
43        <StateGuardMiddleware<Service, Guard, Args, Error> as ServiceTrait<ServiceRequest>>::Error;
44
45    type Transform = StateGuardMiddleware<Service, Guard, Args, Error>;
46
47    type InitError = ();
48
49    type Future = Ready<Result<Self::Transform, Self::InitError>>;
50
51    fn new_transform(&self, service: Service) -> Self::Future {
52        ready(Ok(StateGuardMiddleware::new(
53            Rc::clone(&self.guard),
54            service,
55        )))
56    }
57}
actix_state_guards/transform.rs

actix_state_guards/
transform.rs
