split ruma_wrapper from_request() related.

Signed-off-by: Jason Volk <jason@zemos.net>

src/api/mod.rs

 pub mod client_server;
 pub mod router;
-pub(crate) mod ruma_wrapper;
+mod ruma_wrapper;
 pub mod server_server;
 
 extern crate conduit_core as conduit;

src/api/ruma_wrapper/auth.rs

+use std::collections::BTreeMap;
+
+use axum::RequestPartsExt;
+use axum_extra::{headers::Authorization, typed_header::TypedHeaderRejectionReason, TypedHeader};
+use http::uri::PathAndQuery;
+use ruma::{
+	api::{client::error::ErrorKind, AuthScheme, IncomingRequest},
+	CanonicalJsonValue, OwnedDeviceId, OwnedServerName, OwnedUserId, UserId,
+};
+use tracing::warn;
+
+use super::{request::Request, xmatrix::XMatrix};
+use crate::{service::appservice::RegistrationInfo, services, Error, Result};
+
+enum Token {
+	Appservice(Box<RegistrationInfo>),
+	User((OwnedUserId, OwnedDeviceId)),
+	Invalid,
+	None,
+}
+
+pub(super) struct Auth {
+	pub(super) sender_user: Option<OwnedUserId>,
+	pub(super) sender_device: Option<OwnedDeviceId>,
+	pub(super) origin: Option<OwnedServerName>,
+	pub(super) appservice_info: Option<RegistrationInfo>,
+}
+
+pub(super) async fn auth<T>(request: &mut Request) -> Result<Auth>
+where
+	T: IncomingRequest,
+{
+	let metadata = T::METADATA;
+	let token = match &request.auth {
+		Some(TypedHeader(Authorization(bearer))) => Some(bearer.token()),
+		None => request.query.access_token.as_deref(),
+	};
+
+	let token = if let Some(token) = token {
+		if let Some(reg_info) = services().appservice.find_from_token(token).await {
+			Token::Appservice(Box::new(reg_info))
+		} else if let Some((user_id, device_id)) = services().users.find_from_token(token)? {
+			Token::User((user_id, OwnedDeviceId::from(device_id)))
+		} else {
+			Token::Invalid
+		}
+	} else {
+		Token::None
+	};
+
+	if metadata.authentication == AuthScheme::None {
+		match request.parts.uri.path() {
+			// TODO: can we check this better?
+			"/_matrix/client/v3/publicRooms" | "/_matrix/client/r0/publicRooms" => {
+				if !services()
+					.globals
+					.config
+					.allow_public_room_directory_without_auth
+				{
+					match token {
+						Token::Appservice(_) | Token::User(_) => {
+							// we should have validated the token above
+							// already
+						},
+						Token::None | Token::Invalid => {
+							return Err(Error::BadRequest(ErrorKind::MissingToken, "Missing or invalid access token."));
+						},
+					}
+				}
+			},
+			_ => {},
+		};
+	}
+
+	match (metadata.authentication, token) {
+		(_, Token::Invalid) => Err(Error::BadRequest(
+			ErrorKind::UnknownToken {
+				soft_logout: false,
+			},
+			"Unknown access token.",
+		)),
+		(AuthScheme::AccessToken, Token::Appservice(info)) => Ok(auth_appservice(request, info)?),
+		(AuthScheme::None | AuthScheme::AccessTokenOptional | AuthScheme::AppserviceToken, Token::Appservice(info)) => {
+			Ok(Auth {
+				sender_user: None,
+				sender_device: None,
+				origin: None,
+				appservice_info: Some(*info),
+			})
+		},
+		(AuthScheme::AccessToken, Token::None) => {
+			Err(Error::BadRequest(ErrorKind::MissingToken, "Missing access token."))
+		},
+		(
+			AuthScheme::AccessToken | AuthScheme::AccessTokenOptional | AuthScheme::None,
+			Token::User((user_id, device_id)),
+		) => Ok(Auth {
+			sender_user: Some(user_id),
+			sender_device: Some(device_id),
+			origin: None,
+			appservice_info: None,
+		}),
+		(AuthScheme::ServerSignatures, Token::None) => Ok(auth_server(request).await?),
+		(AuthScheme::None | AuthScheme::AppserviceToken | AuthScheme::AccessTokenOptional, Token::None) => Ok(Auth {
+			sender_user: None,
+			sender_device: None,
+			origin: None,
+			appservice_info: None,
+		}),
+		(AuthScheme::ServerSignatures, Token::Appservice(_) | Token::User(_)) => Err(Error::BadRequest(
+			ErrorKind::Unauthorized,
+			"Only server signatures should be used on this endpoint.",
+		)),
+		(AuthScheme::AppserviceToken, Token::User(_)) => Err(Error::BadRequest(
+			ErrorKind::Unauthorized,
+			"Only appservice access tokens should be used on this endpoint.",
+		)),
+	}
+}
+
+fn auth_appservice(request: &mut Request, info: Box<RegistrationInfo>) -> Result<Auth> {
+	let user_id = request
+		.query
+		.user_id
+		.clone()
+		.map_or_else(
+			|| {
+				UserId::parse_with_server_name(
+					info.registration.sender_localpart.as_str(),
+					services().globals.server_name(),
+				)
+			},
+			UserId::parse,
+		)
+		.map_err(|_| Error::BadRequest(ErrorKind::InvalidUsername, "Username is invalid."))?;
+
+	if !info.is_user_match(&user_id) {
+		return Err(Error::BadRequest(ErrorKind::Exclusive, "User is not in namespace."));
+	}
+
+	if !services().users.exists(&user_id)? {
+		return Err(Error::BadRequest(ErrorKind::forbidden(), "User does not exist."));
+	}
+
+	Ok(Auth {
+		sender_user: Some(user_id),
+		sender_device: None,
+		origin: None,
+		appservice_info: Some(*info),
+	})
+}
+
+async fn auth_server(request: &mut Request) -> Result<Auth> {
+	if !services().globals.allow_federation() {
+		return Err(Error::bad_config("Federation is disabled."));
+	}
+
+	let TypedHeader(Authorization(x_matrix)) = request
+		.parts
+		.extract::<TypedHeader<Authorization<XMatrix>>>()
+		.await
+		.map_err(|e| {
+			warn!("Missing or invalid Authorization header: {e}");
+
+			let msg = match e.reason() {
+				TypedHeaderRejectionReason::Missing => "Missing Authorization header.",
+				TypedHeaderRejectionReason::Error(_) => "Invalid X-Matrix signatures.",
+				_ => "Unknown header-related error",
+			};
+
+			Error::BadRequest(ErrorKind::forbidden(), msg)
+		})?;
+
+	let origin_signatures = BTreeMap::from_iter([(x_matrix.key.clone(), CanonicalJsonValue::String(x_matrix.sig))]);
+
+	let signatures = BTreeMap::from_iter([(
+		x_matrix.origin.as_str().to_owned(),
+		CanonicalJsonValue::Object(origin_signatures),
+	)]);
+
+	let server_destination = services().globals.server_name().as_str().to_owned();
+
+	if let Some(destination) = x_matrix.destination.as_ref() {
+		if destination != &server_destination {
+			return Err(Error::BadRequest(ErrorKind::forbidden(), "Invalid authorization."));
+		}
+	}
+
+	let signature_uri = CanonicalJsonValue::String(
+		request
+			.parts
+			.uri
+			.path_and_query()
+			.unwrap_or(&PathAndQuery::from_static("/"))
+			.to_string(),
+	);
+
+	let mut request_map = BTreeMap::from_iter([
+		(
+			"method".to_owned(),
+			CanonicalJsonValue::String(request.parts.method.to_string()),
+		),
+		("uri".to_owned(), signature_uri),
+		(
+			"origin".to_owned(),
+			CanonicalJsonValue::String(x_matrix.origin.as_str().to_owned()),
+		),
+		("destination".to_owned(), CanonicalJsonValue::String(server_destination)),
+		("signatures".to_owned(), CanonicalJsonValue::Object(signatures)),
+	]);
+
+	if let Some(json_body) = &request.json {
+		request_map.insert("content".to_owned(), json_body.clone());
+	};
+
+	let keys_result = services()
+		.rooms
+		.event_handler
+		.fetch_signing_keys_for_server(&x_matrix.origin, vec![x_matrix.key.clone()])
+		.await;
+
+	let keys = keys_result.map_err(|e| {
+		warn!("Failed to fetch signing keys: {e}");
+		Error::BadRequest(ErrorKind::forbidden(), "Failed to fetch signing keys.")
+	})?;
+
+	let pub_key_map = BTreeMap::from_iter([(x_matrix.origin.as_str().to_owned(), keys)]);
+
+	match ruma::signatures::verify_json(&pub_key_map, &request_map) {
+		Ok(()) => Ok(Auth {
+			sender_user: None,
+			sender_device: None,
+			origin: Some(x_matrix.origin),
+			appservice_info: None,
+		}),
+		Err(e) => {
+			warn!("Failed to verify json request from {}: {e}\n{request_map:?}", x_matrix.origin);
+
+			if request.parts.uri.to_string().contains('@') {
+				warn!(
+					"Request uri contained '@' character. Make sure your reverse proxy gives Conduit the raw uri \
+					 (apache: use nocanon)"
+				);
+			}
+
+			Err(Error::BadRequest(
+				ErrorKind::forbidden(),
+				"Failed to verify X-Matrix signatures.",
+			))
+		},
+	}
+}

src/api/ruma_wrapper/axum.rs

-use std::{collections::BTreeMap, str};
-
-use axum::{
-	async_trait,
-	extract::{FromRequest, Path},
-	RequestExt, RequestPartsExt,
-};
-use axum_extra::{
-	headers::{authorization::Bearer, Authorization},
-	typed_header::TypedHeaderRejectionReason,
-	TypedHeader,
-};
-use bytes::{BufMut, BytesMut};
-use conduit::debug_warn;
-use http::uri::PathAndQuery;
-use hyper::Request;
-use ruma::{
-	api::{client::error::ErrorKind, AuthScheme, IncomingRequest},
-	CanonicalJsonValue, OwnedDeviceId, OwnedUserId, UserId,
-};
-use serde::Deserialize;
-use tracing::{debug, error, trace, warn};
-
-use super::{xmatrix::XMatrix, Ruma};
-use crate::{service::appservice::RegistrationInfo, services, Error, Result};
-
-enum Token {
-	Appservice(Box<RegistrationInfo>),
-	User((OwnedUserId, OwnedDeviceId)),
-	Invalid,
-	None,
-}
-
-#[derive(Deserialize)]
-struct QueryParams {
-	access_token: Option<String>,
-	user_id: Option<String>,
-}
-
-#[async_trait]
-impl<T, S> FromRequest<S, axum::body::Body> for Ruma<T>
-where
-	T: IncomingRequest,
-{
-	type Rejection = Error;
-
-	#[allow(unused_qualifications)] // async traits
-	async fn from_request(req: Request<axum::body::Body>, _state: &S) -> Result<Self, Self::Rejection> {
-		let limited = req.with_limited_body();
-		let (mut parts, body) = limited.into_parts();
-		let mut body = axum::body::to_bytes(
-			body,
-			services()
-				.globals
-				.config
-				.max_request_size
-				.try_into()
-				.expect("failed to convert max request size"),
-		)
-		.await
-		.map_err(|_| Error::BadRequest(ErrorKind::MissingToken, "Missing token."))?;
-
-		let metadata = T::METADATA;
-		let auth_header: Option<TypedHeader<Authorization<Bearer>>> = parts.extract().await?;
-		let path_params: Path<Vec<String>> = parts.extract().await?;
-
-		let query = parts.uri.query().unwrap_or_default();
-		let query_params: QueryParams = match serde_html_form::from_str(query) {
-			Ok(params) => params,
-			Err(e) => {
-				error!(%query, "Failed to deserialize query parameters: {e}");
-				return Err(Error::BadRequest(ErrorKind::Unknown, "Failed to read query parameters"));
-			},
-		};
-
-		let token = match &auth_header {
-			Some(TypedHeader(Authorization(bearer))) => Some(bearer.token()),
-			None => query_params.access_token.as_deref(),
-		};
-
-		let token = if let Some(token) = token {
-			if let Some(reg_info) = services().appservice.find_from_token(token).await {
-				Token::Appservice(Box::new(reg_info))
-			} else if let Some((user_id, device_id)) = services().users.find_from_token(token)? {
-				Token::User((user_id, OwnedDeviceId::from(device_id)))
-			} else {
-				Token::Invalid
-			}
-		} else {
-			Token::None
-		};
-
-		if metadata.authentication == AuthScheme::None {
-			match parts.uri.path() {
-				// TODO: can we check this better?
-				"/_matrix/client/v3/publicRooms" | "/_matrix/client/r0/publicRooms" => {
-					if !services()
-						.globals
-						.config
-						.allow_public_room_directory_without_auth
-					{
-						match token {
-							Token::Appservice(_) | Token::User(_) => {
-								// we should have validated the token above
-								// already
-							},
-							Token::None | Token::Invalid => {
-								return Err(Error::BadRequest(
-									ErrorKind::MissingToken,
-									"Missing or invalid access token.",
-								));
-							},
-						}
-					}
-				},
-				_ => {},
-			};
-		}
-
-		let mut json_body = serde_json::from_slice::<CanonicalJsonValue>(&body).ok();
-
-		let (sender_user, sender_device, origin, appservice_info) = match (metadata.authentication, token) {
-			(_, Token::Invalid) => {
-				return Err(Error::BadRequest(
-					ErrorKind::UnknownToken {
-						soft_logout: false,
-					},
-					"Unknown access token.",
-				))
-			},
-			(AuthScheme::AccessToken, Token::Appservice(info)) => {
-				let user_id = query_params
-					.user_id
-					.map_or_else(
-						|| {
-							UserId::parse_with_server_name(
-								info.registration.sender_localpart.as_str(),
-								services().globals.server_name(),
-							)
-						},
-						UserId::parse,
-					)
-					.map_err(|_| Error::BadRequest(ErrorKind::InvalidUsername, "Username is invalid."))?;
-
-				if !info.is_user_match(&user_id) {
-					return Err(Error::BadRequest(ErrorKind::Exclusive, "User is not in namespace."));
-				}
-
-				if !services().users.exists(&user_id)? {
-					return Err(Error::BadRequest(ErrorKind::forbidden(), "User does not exist."));
-				}
-
-				(Some(user_id), None, None, Some(*info))
-			},
-			(
-				AuthScheme::None | AuthScheme::AccessTokenOptional | AuthScheme::AppserviceToken,
-				Token::Appservice(info),
-			) => (None, None, None, Some(*info)),
-			(AuthScheme::AccessToken, Token::None) => {
-				return Err(Error::BadRequest(ErrorKind::MissingToken, "Missing access token."));
-			},
-			(
-				AuthScheme::AccessToken | AuthScheme::AccessTokenOptional | AuthScheme::None,
-				Token::User((user_id, device_id)),
-			) => (Some(user_id), Some(device_id), None, None),
-			(AuthScheme::ServerSignatures, Token::None) => {
-				if !services().globals.allow_federation() {
-					return Err(Error::bad_config("Federation is disabled."));
-				}
-
-				let TypedHeader(Authorization(x_matrix)) = parts
-					.extract::<TypedHeader<Authorization<XMatrix>>>()
-					.await
-					.map_err(|e| {
-						warn!("Missing or invalid Authorization header: {e}");
-
-						let msg = match e.reason() {
-							TypedHeaderRejectionReason::Missing => "Missing Authorization header.",
-							TypedHeaderRejectionReason::Error(_) => "Invalid X-Matrix signatures.",
-							_ => "Unknown header-related error",
-						};
-
-						Error::BadRequest(ErrorKind::forbidden(), msg)
-					})?;
-
-				let origin_signatures =
-					BTreeMap::from_iter([(x_matrix.key.clone(), CanonicalJsonValue::String(x_matrix.sig))]);
-
-				let signatures = BTreeMap::from_iter([(
-					x_matrix.origin.as_str().to_owned(),
-					CanonicalJsonValue::Object(origin_signatures),
-				)]);
-
-				let server_destination = services().globals.server_name().as_str().to_owned();
-
-				if let Some(destination) = x_matrix.destination.as_ref() {
-					if destination != &server_destination {
-						return Err(Error::BadRequest(ErrorKind::forbidden(), "Invalid authorization."));
-					}
-				}
-
-				let signature_uri = CanonicalJsonValue::String(
-					parts
-						.uri
-						.path_and_query()
-						.unwrap_or(&PathAndQuery::from_static("/"))
-						.to_string(),
-				);
-
-				let mut request_map = BTreeMap::from_iter([
-					("method".to_owned(), CanonicalJsonValue::String(parts.method.to_string())),
-					("uri".to_owned(), signature_uri),
-					(
-						"origin".to_owned(),
-						CanonicalJsonValue::String(x_matrix.origin.as_str().to_owned()),
-					),
-					("destination".to_owned(), CanonicalJsonValue::String(server_destination)),
-					("signatures".to_owned(), CanonicalJsonValue::Object(signatures)),
-				]);
-
-				if let Some(json_body) = &json_body {
-					request_map.insert("content".to_owned(), json_body.clone());
-				};
-
-				let keys_result = services()
-					.rooms
-					.event_handler
-					.fetch_signing_keys_for_server(&x_matrix.origin, vec![x_matrix.key.clone()])
-					.await;
-
-				let keys = keys_result.map_err(|e| {
-					warn!("Failed to fetch signing keys: {e}");
-					Error::BadRequest(ErrorKind::forbidden(), "Failed to fetch signing keys.")
-				})?;
-
-				let pub_key_map = BTreeMap::from_iter([(x_matrix.origin.as_str().to_owned(), keys)]);
-
-				match ruma::signatures::verify_json(&pub_key_map, &request_map) {
-					Ok(()) => (None, None, Some(x_matrix.origin), None),
-					Err(e) => {
-						warn!("Failed to verify json request from {}: {e}\n{request_map:?}", x_matrix.origin);
-
-						if parts.uri.to_string().contains('@') {
-							warn!(
-								"Request uri contained '@' character. Make sure your reverse proxy gives Conduit the \
-								 raw uri (apache: use nocanon)"
-							);
-						}
-
-						return Err(Error::BadRequest(
-							ErrorKind::forbidden(),
-							"Failed to verify X-Matrix signatures.",
-						));
-					},
-				}
-			},
-			(AuthScheme::None | AuthScheme::AppserviceToken | AuthScheme::AccessTokenOptional, Token::None) => {
-				(None, None, None, None)
-			},
-			(AuthScheme::ServerSignatures, Token::Appservice(_) | Token::User(_)) => {
-				return Err(Error::BadRequest(
-					ErrorKind::Unauthorized,
-					"Only server signatures should be used on this endpoint.",
-				));
-			},
-			(AuthScheme::AppserviceToken, Token::User(_)) => {
-				return Err(Error::BadRequest(
-					ErrorKind::Unauthorized,
-					"Only appservice access tokens should be used on this endpoint.",
-				));
-			},
-		};
-
-		let mut http_request = Request::builder().uri(parts.uri).method(parts.method);
-		*http_request.headers_mut().unwrap() = parts.headers;
-
-		if let Some(CanonicalJsonValue::Object(json_body)) = &mut json_body {
-			let user_id = sender_user.clone().unwrap_or_else(|| {
-				UserId::parse_with_server_name("", services().globals.server_name()).expect("we know this is valid")
-			});
-
-			let uiaa_request = json_body
-				.get("auth")
-				.and_then(|auth| auth.as_object())
-				.and_then(|auth| auth.get("session"))
-				.and_then(|session| session.as_str())
-				.and_then(|session| {
-					services().uiaa.get_uiaa_request(
-						&user_id,
-						&sender_device.clone().unwrap_or_else(|| "".into()),
-						session,
-					)
-				});
-
-			if let Some(CanonicalJsonValue::Object(initial_request)) = uiaa_request {
-				for (key, value) in initial_request {
-					json_body.entry(key).or_insert(value);
-				}
-			}
-
-			let mut buf = BytesMut::new().writer();
-			serde_json::to_writer(&mut buf, json_body).expect("value serialization can't fail");
-			body = buf.into_inner().freeze();
-		}
-
-		let http_request = http_request.body(&*body).unwrap();
-		debug!(
-			"{:?} {:?} {:?}",
-			http_request.method(),
-			http_request.uri(),
-			http_request.headers()
-		);
-
-		trace!("{:?} {:?} {:?}", http_request.method(), http_request.uri(), json_body);
-		let body = T::try_from_http_request(http_request, &path_params).map_err(|e| {
-			warn!("try_from_http_request failed: {e:?}",);
-			debug_warn!("JSON body: {:?}", json_body);
-			Error::BadRequest(ErrorKind::BadJson, "Failed to deserialize request.")
-		})?;
-
-		Ok(Ruma {
-			body,
-			sender_user,
-			sender_device,
-			origin,
-			json_body,
-			appservice_info,
-		})
-	}
-}

src/api/ruma_wrapper/mod.rs

-pub(crate) mod axum;
+mod auth;
+mod request;
 mod xmatrix;
 
 use std::ops::Deref;

src/api/ruma_wrapper/request.rs

+use std::{mem, str};
+
+use axum::{
+	async_trait,
+	extract::{FromRequest, Path},
+	RequestExt, RequestPartsExt,
+};
+use axum_extra::{
+	headers::{authorization::Bearer, Authorization},
+	TypedHeader,
+};
+use bytes::{BufMut, Bytes, BytesMut};
+use conduit::debug_warn;
+use http::request::Parts;
+use ruma::{
+	api::{client::error::ErrorKind, IncomingRequest},
+	CanonicalJsonValue, UserId,
+};
+use serde::Deserialize;
+use tracing::{debug, trace, warn};
+
+use super::{auth, auth::Auth, Ruma};
+use crate::{services, Error, Result};
+
+#[derive(Deserialize)]
+pub(super) struct QueryParams {
+	pub(super) access_token: Option<String>,
+	pub(super) user_id: Option<String>,
+}
+
+pub(super) struct Request {
+	pub(super) auth: Option<TypedHeader<Authorization<Bearer>>>,
+	pub(super) path: Path<Vec<String>>,
+	pub(super) query: QueryParams,
+	pub(super) json: Option<CanonicalJsonValue>,
+	pub(super) body: Bytes,
+	pub(super) parts: Parts,
+}
+
+#[async_trait]
+impl<T, S> FromRequest<S, axum::body::Body> for Ruma<T>
+where
+	T: IncomingRequest,
+{
+	type Rejection = Error;
+
+	async fn from_request(request: hyper::Request<axum::body::Body>, _state: &S) -> Result<Self, Self::Rejection> {
+		let mut request: Request = extract(request).await?;
+		let auth: Auth = auth::auth::<T>(&mut request).await?;
+		let body = make_body::<T>(&mut request, &auth)?;
+		Ok(Ruma {
+			body,
+			sender_user: auth.sender_user,
+			sender_device: auth.sender_device,
+			origin: auth.origin,
+			json_body: request.json,
+			appservice_info: auth.appservice_info,
+		})
+	}
+}
+
+fn make_body<T>(request: &mut Request, auth: &Auth) -> Result<T>
+where
+	T: IncomingRequest,
+{
+	let body = if let Some(CanonicalJsonValue::Object(json_body)) = &mut request.json {
+		let user_id = auth.sender_user.clone().unwrap_or_else(|| {
+			UserId::parse_with_server_name("", services().globals.server_name()).expect("we know this is valid")
+		});
+
+		let uiaa_request = json_body
+			.get("auth")
+			.and_then(|auth| auth.as_object())
+			.and_then(|auth| auth.get("session"))
+			.and_then(|session| session.as_str())
+			.and_then(|session| {
+				services().uiaa.get_uiaa_request(
+					&user_id,
+					&auth.sender_device.clone().unwrap_or_else(|| "".into()),
+					session,
+				)
+			});
+
+		if let Some(CanonicalJsonValue::Object(initial_request)) = uiaa_request {
+			for (key, value) in initial_request {
+				json_body.entry(key).or_insert(value);
+			}
+		}
+
+		let mut buf = BytesMut::new().writer();
+		serde_json::to_writer(&mut buf, &request.json).expect("value serialization can't fail");
+		buf.into_inner().freeze()
+	} else {
+		mem::take(&mut request.body)
+	};
+
+	let mut http_request = hyper::Request::builder()
+		.uri(request.parts.uri.clone())
+		.method(request.parts.method.clone());
+	*http_request.headers_mut().unwrap() = request.parts.headers.clone();
+	let http_request = http_request.body(body).unwrap();
+	debug!(
+		"{:?} {:?} {:?}",
+		http_request.method(),
+		http_request.uri(),
+		http_request.headers()
+	);
+
+	trace!("{:?} {:?} {:?}", http_request.method(), http_request.uri(), request.json);
+	let body = T::try_from_http_request(http_request, &request.path).map_err(|e| {
+		warn!("try_from_http_request failed: {e:?}",);
+		debug_warn!("JSON body: {:?}", request.json);
+		Error::BadRequest(ErrorKind::BadJson, "Failed to deserialize request.")
+	})?;
+
+	Ok(body)
+}
+
+async fn extract(request: hyper::Request<axum::body::Body>) -> Result<Request> {
+	let limited = request.with_limited_body();
+	let (mut parts, body) = limited.into_parts();
+
+	let auth = parts.extract().await?;
+	let path = parts.extract().await?;
+	let query = serde_html_form::from_str(parts.uri.query().unwrap_or_default())
+		.map_err(|_| Error::BadRequest(ErrorKind::Unknown, "Failed to read query parameters"))?;
+
+	let max_body_size = services()
+		.globals
+		.config
+		.max_request_size
+		.try_into()
+		.expect("failed to convert max request size");
+
+	let body = axum::body::to_bytes(body, max_body_size)
+		.await
+		.map_err(|_| Error::BadRequest(ErrorKind::TooLarge, "Request body too large"))?;
+
+	let json = serde_json::from_slice::<CanonicalJsonValue>(&body).ok();
+
+	Ok(Request {
+		auth,
+		path,
+		query,
+		json,
+		body,
+		parts,
+	})
+}