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Add `MethodFilter::CONNECT` (#2961)

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Sabrina Jewson 2024-10-06 20:09:06 +01:00 committed by GitHub
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6 changed files with 146 additions and 10 deletions
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2
axum-extra/CHANGELOG.md
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@ -7,8 +7,10 @@ and this project adheres to [Semantic Versioning].
# Unreleased
- **added:** Add `RouterExt::typed_connect` ([#2961])
- **added:** Add `json!` for easy construction of JSON responses ([#2962])
[#2961]: https://github.com/tokio-rs/axum/pull/2961
[#2962]: https://github.com/tokio-rs/axum/pull/2962
# 0.10.0

23
axum-extra/src/routing/mod.rs
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@ -131,6 +131,19 @@ pub trait RouterExt<S>: sealed::Sealed {
T: SecondElementIs<P> + 'static,
P: TypedPath;
/// Add a typed `CONNECT` route to the router.
///
/// The path will be inferred from the first argument to the handler function which must
/// implement [`TypedPath`].
///
/// See [`TypedPath`] for more details and examples.
#[cfg(feature = "typed-routing")]
fn typed_connect<H, T, P>(self, handler: H) -> Self
where
H: axum::handler::Handler<T, S>,
T: SecondElementIs<P> + 'static,
P: TypedPath;
/// Add another route to the router with an additional "trailing slash redirect" route.
///
/// If you add a route _without_ a trailing slash, such as `/foo`, this method will also add a
@ -255,6 +268,16 @@ where
self.route(P::PATH, axum::routing::trace(handler))
}
#[cfg(feature = "typed-routing")]
fn typed_connect<H, T, P>(self, handler: H) -> Self
where
H: axum::handler::Handler<T, S>,
T: SecondElementIs<P> + 'static,
P: TypedPath,
{
self.route(P::PATH, axum::routing::connect(handler))
}
#[track_caller]
fn route_with_tsr(mut self, path: &str, method_router: MethodRouter<S>) -> Self
where

12
axum/CHANGELOG.md
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@ -5,6 +5,16 @@ All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
# Unreleased
- **added:** Add support for WebSockets over HTTP/2 ([#2894]).
They can be enabled by changing `get(ws_endpoint)` handlers to `any(ws_endpoint)`
- **added:** Add `MethodFilter::CONNECT`, `routing::connect[_service]`
and `MethodRouter::connect[_service]` ([#2961])
[#2984]: https://github.com/tokio-rs/axum/pull/2984
[#2961]: https://github.com/tokio-rs/axum/pull/2961
# 0.8.0
## alpha.1
@ -15,8 +25,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- **breaking:** Upgrade matchit to 0.8, changing the path parameter syntax from `/:single` and `/*many`
to `/{single}` and `/{*many}`; the old syntax produces a panic to avoid silent change in behavior ([#2645])
- **change:** Update minimum rust version to 1.75 ([#2943])
- **added:** Add support WebSockets over HTTP/2.
They can be enabled by changing `get(ws_endpoint)` handlers to `any(ws_endpoint)`.
[#2473]: https://github.com/tokio-rs/axum/pull/2473
[#2645]: https://github.com/tokio-rs/axum/pull/2645

34
axum/src/routing/method_filter.rs
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@ -9,6 +9,24 @@ use std::{
pub struct MethodFilter(u16);
impl MethodFilter {
/// Match `CONNECT` requests.
///
/// This is useful for implementing HTTP/2's [extended CONNECT method],
/// in which the `:protocol` pseudoheader is read
/// (using [`hyper::ext::Protocol`])
/// and the connection upgraded to a bidirectional byte stream
/// (using [`hyper::upgrade::on`]).
///
/// As seen in the [HTTP Upgrade Token Registry],
/// common uses include WebSockets and proxying UDP or IP –
/// though note that when using [`WebSocketUpgrade`]
/// it's more useful to use [`any`](crate::routing::any)
/// as HTTP/1.1 WebSockets need to support `GET`.
///
/// [extended CONNECT]: https://www.rfc-editor.org/rfc/rfc8441.html#section-4
/// [HTTP Upgrade Token Registry]: https://www.iana.org/assignments/http-upgrade-tokens/http-upgrade-tokens.xhtml
/// [`WebSocketUpgrade`]: crate::extract::WebSocketUpgrade
pub const CONNECT: Self = Self::from_bits(0b0_0000_0001);
/// Match `DELETE` requests.
pub const DELETE: Self = Self::from_bits(0b0_0000_0010);
/// Match `GET` requests.
@ -71,6 +89,7 @@ impl TryFrom<Method> for MethodFilter {
fn try_from(m: Method) -> Result<Self, NoMatchingMethodFilter> {
match m {
Method::CONNECT => Ok(MethodFilter::CONNECT),
Method::DELETE => Ok(MethodFilter::DELETE),
Method::GET => Ok(MethodFilter::GET),
Method::HEAD => Ok(MethodFilter::HEAD),
@ -90,6 +109,11 @@ mod tests {
#[test]
fn from_http_method() {
assert_eq!(
MethodFilter::try_from(Method::CONNECT).unwrap(),
MethodFilter::CONNECT
);
assert_eq!(
MethodFilter::try_from(Method::DELETE).unwrap(),
MethodFilter::DELETE
@ -130,9 +154,11 @@ mod tests {
MethodFilter::TRACE
);
assert!(MethodFilter::try_from(http::Method::CONNECT)
.unwrap_err()
.to_string()
.contains("CONNECT"));
assert!(
MethodFilter::try_from(http::Method::from_bytes(b"CUSTOM").unwrap())
.unwrap_err()
.to_string()
.contains("CUSTOM")
);
}
}

79
axum/src/routing/method_routing.rs
View File

@ -59,6 +59,19 @@ macro_rules! top_level_service_fn {
);
};
(
$name:ident, CONNECT
) => {
top_level_service_fn!(
/// Route `CONNECT` requests to the given service.
///
/// See [`MethodFilter::CONNECT`] for when you'd want to use this,
/// and [`get_service`] for an example.
$name,
CONNECT
);
};
(
$name:ident, $method:ident
) => {
@ -118,6 +131,19 @@ macro_rules! top_level_handler_fn {
);
};
(
$name:ident, CONNECT
) => {
top_level_handler_fn!(
/// Route `CONNECT` requests to the given handler.
///
/// See [`MethodFilter::CONNECT`] for when you'd want to use this,
/// and [`get`] for an example.
$name,
CONNECT
);
};
(
$name:ident, $method:ident
) => {
@ -187,6 +213,19 @@ macro_rules! chained_service_fn {
);
};
(
$name:ident, CONNECT
) => {
chained_service_fn!(
/// Chain an additional service that will only accept `CONNECT` requests.
///
/// See [`MethodFilter::CONNECT`] for when you'd want to use this,
/// and [`MethodRouter::get_service`] for an example.
$name,
CONNECT
);
};
(
$name:ident, $method:ident
) => {
@ -250,6 +289,19 @@ macro_rules! chained_handler_fn {
);
};
(
$name:ident, CONNECT
) => {
chained_handler_fn!(
/// Chain an additional handler that will only accept `CONNECT` requests.
///
/// See [`MethodFilter::CONNECT`] for when you'd want to use this,
/// and [`MethodRouter::get`] for an example.
$name,
CONNECT
);
};
(
$name:ident, $method:ident
) => {
@ -279,6 +331,7 @@ macro_rules! chained_handler_fn {
};
}
top_level_service_fn!(connect_service, CONNECT);
top_level_service_fn!(delete_service, DELETE);
top_level_service_fn!(get_service, GET);
top_level_service_fn!(head_service, HEAD);
@ -382,6 +435,7 @@ where
.skip_allow_header()
}
top_level_handler_fn!(connect, CONNECT);
top_level_handler_fn!(delete, DELETE);
top_level_handler_fn!(get, GET);
top_level_handler_fn!(head, HEAD);
@ -498,6 +552,7 @@ pub struct MethodRouter<S = (), E = Infallible> {
post: MethodEndpoint<S, E>,
put: MethodEndpoint<S, E>,
trace: MethodEndpoint<S, E>,
connect: MethodEndpoint<S, E>,
fallback: Fallback<S, E>,
allow_header: AllowHeader,
}
@ -539,6 +594,7 @@ impl<S, E> fmt::Debug for MethodRouter<S, E> {
.field("post", &self.post)
.field("put", &self.put)
.field("trace", &self.trace)
.field("connect", &self.connect)
.field("fallback", &self.fallback)
.field("allow_header", &self.allow_header)
.finish()
@ -583,6 +639,7 @@ where
)
}
chained_handler_fn!(connect, CONNECT);
chained_handler_fn!(delete, DELETE);
chained_handler_fn!(get, GET);
chained_handler_fn!(head, HEAD);
@ -690,6 +747,7 @@ where
post: MethodEndpoint::None,
put: MethodEndpoint::None,
trace: MethodEndpoint::None,
connect: MethodEndpoint::None,
allow_header: AllowHeader::None,
fallback: Fallback::Default(fallback),
}
@ -706,6 +764,7 @@ where
post: self.post.with_state(&state),
put: self.put.with_state(&state),
trace: self.trace.with_state(&state),
connect: self.connect.with_state(&state),
allow_header: self.allow_header,
fallback: self.fallback.with_state(state),
}
@ -854,9 +913,20 @@ where
&["DELETE"],
);
set_endpoint(
"CONNECT",
&mut self.options,
&endpoint,
filter,
MethodFilter::CONNECT,
&mut self.allow_header,
&["CONNECT"],
);
self
}
chained_service_fn!(connect_service, CONNECT);
chained_service_fn!(delete_service, DELETE);
chained_service_fn!(get_service, GET);
chained_service_fn!(head_service, HEAD);
@ -900,6 +970,7 @@ where
post: self.post.map(layer_fn.clone()),
put: self.put.map(layer_fn.clone()),
trace: self.trace.map(layer_fn.clone()),
connect: self.connect.map(layer_fn.clone()),
fallback: self.fallback.map(layer_fn),
allow_header: self.allow_header,
}
@ -924,6 +995,7 @@ where
&& self.post.is_none()
&& self.put.is_none()
&& self.trace.is_none()
&& self.connect.is_none()
{
panic!(
"Adding a route_layer before any routes is a no-op. \
@ -944,7 +1016,8 @@ where
self.patch = self.patch.map(layer_fn.clone());
self.post = self.post.map(layer_fn.clone());
self.put = self.put.map(layer_fn.clone());
self.trace = self.trace.map(layer_fn);
self.trace = self.trace.map(layer_fn.clone());
self.connect = self.connect.map(layer_fn);
self
}
@ -985,6 +1058,7 @@ where
self.post = merge_inner(path, "POST", self.post, other.post);
self.put = merge_inner(path, "PUT", self.put, other.put);
self.trace = merge_inner(path, "TRACE", self.trace, other.trace);
self.connect = merge_inner(path, "CONNECT", self.connect, other.connect);
self.fallback = self
.fallback
@ -1058,6 +1132,7 @@ where
post,
put,
trace,
connect,
fallback,
allow_header,
} = self;
@ -1071,6 +1146,7 @@ where
call!(req, method, PUT, put);
call!(req, method, DELETE, delete);
call!(req, method, TRACE, trace);
call!(req, method, CONNECT, connect);
let future = fallback.clone().call_with_state(req, state);
@ -1113,6 +1189,7 @@ impl<S, E> Clone for MethodRouter<S, E> {
post: self.post.clone(),
put: self.put.clone(),
trace: self.trace.clone(),
connect: self.connect.clone(),
fallback: self.fallback.clone(),
allow_header: self.allow_header.clone(),
}

6
axum/src/routing/mod.rs
View File

@ -40,9 +40,9 @@ mod tests;
pub use self::{into_make_service::IntoMakeService, method_filter::MethodFilter, route::Route};
pub use self::method_routing::{
any, any_service, delete, delete_service, get, get_service, head, head_service, on, on_service,
options, options_service, patch, patch_service, post, post_service, put, put_service, trace,
trace_service, MethodRouter,
any, any_service, connect, connect_service, delete, delete_service, get, get_service, head,
head_service, on, on_service, options, options_service, patch, patch_service, post,
post_service, put, put_service, trace, trace_service, MethodRouter,
};
macro_rules! panic_on_err {