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use crate::data_map::SharedDataMap; use crate::types::{RequestContext, RequestMeta, RouteParams}; use hyper::Request; use std::net::SocketAddr; /// A extension trait which extends the [`hyper::Request`](https://docs.rs/hyper/0.14.4/hyper/struct.Request.html) type with some helpful methods. pub trait RequestExt { /// It returns the route parameters as [RouteParams](../struct.RouteParams.html) type with the name of the parameter specified in the path as their respective keys. /// /// # Examples /// /// ``` /// use routerify::{Router, RouteParams}; /// use routerify::ext::RequestExt; /// use hyper::{Response, Body}; /// # use std::convert::Infallible; /// /// # fn run() -> Router<Body, Infallible> { /// let router = Router::builder() /// .get("/users/:userName/books/:bookName", |req| async move { /// let params: &RouteParams = req.params(); /// let user_name = params.get("userName").unwrap(); /// let book_name = params.get("bookName").unwrap(); /// /// Ok(Response::new(Body::from(format!("Username: {}, Book Name: {}", user_name, book_name)))) /// }) /// .build() /// .unwrap(); /// # router /// # } /// # run(); /// ``` fn params(&self) -> &RouteParams; /// It returns the route parameter value by the name of the parameter specified in the path. /// /// # Examples /// /// ``` /// use routerify::{Router, RouteParams}; /// use routerify::ext::RequestExt; /// use hyper::{Response, Body}; /// # use std::convert::Infallible; /// /// # fn run() -> Router<Body, Infallible> { /// let router = Router::builder() /// .get("/users/:userName/books/:bookName", |req| async move { /// let user_name = req.param("userName").unwrap(); /// let book_name = req.param("bookName").unwrap(); /// /// Ok(Response::new(Body::from(format!("Username: {}, Book Name: {}", user_name, book_name)))) /// }) /// .build() /// .unwrap(); /// # router /// # } /// # run(); /// ``` fn param<P: Into<String>>(&self, param_name: P) -> Option<&String>; /// It returns the remote address of the incoming request. /// /// # Examples /// /// ``` /// use routerify::{Router, RouteParams}; /// use routerify::ext::RequestExt; /// use hyper::{Response, Body}; /// # use std::convert::Infallible; /// /// # fn run() -> Router<Body, Infallible> { /// let router = Router::builder() /// .get("/hello", |req| async move { /// let remote_addr = req.remote_addr(); /// /// Ok(Response::new(Body::from(format!("Hello from : {}", remote_addr)))) /// }) /// .build() /// .unwrap(); /// # router /// # } /// # run(); /// ``` fn remote_addr(&self) -> SocketAddr; /// Access data which was shared by the [`RouterBuilder`](../struct.RouterBuilder.html) method /// [`data`](../struct.RouterBuilder.html#method.data). /// /// Please refer to the [Data and State Sharing](../index.html#data-and-state-sharing) for more info. fn data<T: Send + Sync + 'static>(&self) -> Option<&T>; /// Access data in the request context. fn context<T: Send + Sync + Clone + 'static>(&self) -> Option<T>; /// Put data into the request context. /// /// # Examples /// /// ``` /// use routerify::{Router, RouteParams, Middleware}; /// use routerify::ext::RequestExt; /// use hyper::{Response, Request, Body}; /// # use std::convert::Infallible; /// /// # fn run() -> Router<Body, Infallible> { /// let router = Router::builder() /// .middleware(Middleware::pre(|req: Request<Body>| async move { /// req.set_context("example".to_string()); /// /// Ok(req) /// })) /// .get("/hello", |req| async move { /// let text = req.context::<String>().unwrap(); /// /// Ok(Response::new(Body::from(format!("Hello from : {}", text)))) /// }) /// .build() /// .unwrap(); /// # router /// # } /// # run(); /// ``` fn set_context<T: Send + Sync + Clone + 'static>(&self, val: T); } impl RequestExt for Request<hyper::Body> { fn params(&self) -> &RouteParams { self.extensions() .get::<RequestMeta>() .and_then(|meta| meta.route_params()) .expect("Routerify: No RouteParams added while processing request") } fn param<P: Into<String>>(&self, param_name: P) -> Option<&String> { self.params().get(¶m_name.into()) } fn remote_addr(&self) -> SocketAddr { self.extensions() .get::<RequestMeta>() .and_then(|meta| meta.remote_addr()) .copied() .expect("Routerify: No remote address added while processing request") } fn data<T: Send + Sync + 'static>(&self) -> Option<&T> { let shared_data_maps = self.extensions().get::<Vec<SharedDataMap>>(); if let Some(shared_data_maps) = shared_data_maps { for shared_data_map in shared_data_maps.iter() { if let Some(data) = shared_data_map.inner.get::<T>() { return Some(data); } } } None } fn context<T: Send + Sync + Clone + 'static>(&self) -> Option<T> { let ctx = self .extensions() .get::<RequestContext>() .expect("Context must be present"); ctx.get::<T>() } fn set_context<T: Send + Sync + Clone + 'static>(&self, val: T) { let ctx = self .extensions() .get::<RequestContext>() .expect("Context must be present"); ctx.set(val) } }