Move to rocket's async branch

Cargo.toml

@@ -7,7 +7,7 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-rocket = { git = "https://github.com/SergioBenitez/Rocket.git", features = ["tls"] }
+rocket = { git = "https://github.com/SergioBenitez/Rocket.git", branch = "async", features = ["tls"] }
 http = "0.2.1"
 ruma-client-api = "0.7.1"
 pretty_env_logger = "0.4.0"
@@ -21,4 +21,5 @@ js_int = "0.1.4"
 serde_json = "1.0.50"
 ruma-signatures = { git = "https://github.com/ruma/ruma-signatures.git" }
 ruma-federation-api = "0.0.1"
-serde = "1.0.105"
+serde = "1.0.106"
+tokio = "0.2.16"

src/main.rs

@@ -270,8 +270,8 @@ fn sync_route(
                     notification_count: None,
                 },
                 timeline: sync_events::Timeline {
-                    limited: None,
-                    prev_batch: None,
+                    limited: Some(false),
+                    prev_batch: Some("".to_owned()),
                     events: room_events,
                 },
                 state: sync_events::State { events: Vec::new() },
@@ -328,5 +328,6 @@ fn main() {
             ],
         )
         .manage(data)
-        .launch();
+        .launch()
+        .unwrap();
 }

src/ruma_wrapper.rs

@@ -1,7 +1,7 @@
 use rocket::{
-    data::{FromDataSimple, Outcome},
+    data::{Data, FromData, FromDataFuture, Transform, Transformed, TransformFuture},
     http::Status,
-    response::Responder,
+    response::{self, Responder},
     Outcome::*,
     Request, State,
 };
@@ -13,9 +13,10 @@ use ruma_client_api::error::Error;
 use ruma_identifiers::UserId;
 use std::{
     convert::{TryFrom, TryInto},
-    io::{Cursor, Read},
+    io::Cursor,
     ops::Deref,
 };
+use tokio::io::AsyncReadExt;
 
 const MESSAGE_LIMIT: u64 = 65535;
 
@@ -27,7 +28,7 @@ pub struct Ruma<T: Outgoing> {
     pub json_body: serde_json::Value,
 }
 
-impl<T: Endpoint> FromDataSimple for Ruma<T>
+impl<'a, T: Endpoint> FromData<'a> for Ruma<T>
 where
     // We need to duplicate Endpoint's where clauses because the compiler is not smart enough yet.
     // See https://github.com/rust-lang/rust/issues/54149
@@ -38,63 +39,76 @@ where
     >,
 {
     type Error = (); // TODO: Better error handling
+    type Owned = Data;
+    type Borrowed = Self::Owned;
 
-    fn from_data(request: &Request, data: rocket::Data) -> Outcome<Self, Self::Error> {
-        let user_id = if T::METADATA.requires_authentication {
-            let data = request.guard::<State<crate::Data>>().unwrap();
+    fn transform<'r>(_req: &'r Request, data: Data) -> TransformFuture<'r, Self::Owned, Self::Error> {
+        Box::pin(async move { Transform::Owned(Success(data)) })
+    }
 
-            // Get token from header or query value
-            let token = match request
-                .headers()
-                .get_one("Authorization")
-                .map(|s| s.to_owned())
-                .or_else(|| request.get_query_value("access_token").and_then(|r| r.ok()))
-            {
-                // TODO: M_MISSING_TOKEN
-                None => return Failure((Status::Unauthorized, ())),
-                Some(token) => token,
+    fn from_data(
+        request: &'a Request,
+        outcome: Transformed<'a, Self>,
+    ) -> FromDataFuture<'a, Self, Self::Error> {
+        Box::pin(async move {
+            let data = rocket::try_outcome!(outcome.owned());
+
+            let user_id = if T::METADATA.requires_authentication {
+                let data = request.guard::<State<crate::Data>>().await.unwrap();
+
+                // Get token from header or query value
+                let token = match request
+                    .headers()
+                    .get_one("Authorization")
+                    .map(|s| s.to_owned())
+                    .or_else(|| request.get_query_value("access_token").and_then(|r| r.ok()))
+                {
+                    // TODO: M_MISSING_TOKEN
+                    None => return Failure((Status::Unauthorized, ())),
+                    Some(token) => token,
+                };
+
+                // Check if token is valid
+                match data.user_from_token(&token) {
+                    // TODO: M_UNKNOWN_TOKEN
+                    None => return Failure((Status::Unauthorized, ())),
+                    Some(user_id) => Some(user_id),
+                }
+            } else {
+                None
             };
 
-            // Check if token is valid
-            match data.user_from_token(&token) {
-                // TODO: M_UNKNOWN_TOKEN
-                None => return Failure((Status::Unauthorized, ())),
-                Some(user_id) => Some(user_id),
+            let mut http_request = http::Request::builder()
+                .uri(request.uri().to_string())
+                .method(&*request.method().to_string());
+            for header in request.headers().iter() {
+                http_request = http_request.header(header.name.as_str(), &*header.value);
             }
-        } else {
-            None
-        };
 
-        let mut http_request = http::Request::builder()
-            .uri(request.uri().to_string())
-            .method(&*request.method().to_string());
-        for header in request.headers().iter() {
-            http_request = http_request.header(header.name.as_str(), &*header.value);
-        }
+            let mut handle = data.open().take(MESSAGE_LIMIT);
+            let mut body = Vec::new();
+            handle.read_to_end(&mut body).await.unwrap();
 
-        let mut handle = data.open().take(MESSAGE_LIMIT);
-        let mut body = Vec::new();
-        handle.read_to_end(&mut body).unwrap();
+            let http_request = http_request.body(body.clone()).unwrap();
+            log::info!("{:?}", http_request);
 
-        let http_request = http_request.body(body.clone()).unwrap();
-        log::info!("{:?}", http_request);
-
-        match T::Incoming::try_from(http_request) {
-            Ok(t) => Success(Ruma {
-                body: t,
-                user_id,
-                // TODO: Can we avoid parsing it again?
-                json_body: if !body.is_empty() {
-                    serde_json::from_slice(&body).expect("Ruma already parsed it successfully")
-                } else {
-                    serde_json::Value::default()
-                },
-            }),
-            Err(e) => {
-                log::error!("{:?}", e);
-                Failure((Status::InternalServerError, ()))
+            match T::Incoming::try_from(http_request) {
+                Ok(t) => Success(Ruma {
+                    body: t,
+                    user_id,
+                    // TODO: Can we avoid parsing it again?
+                    json_body: if !body.is_empty() {
+                        serde_json::from_slice(&body).expect("Ruma already parsed it successfully")
+                    } else {
+                        serde_json::Value::default()
+                    },
+                }),
+                Err(e) => {
+                    log::error!("{:?}", e);
+                    Failure((Status::InternalServerError, ()))
+                }
             }
-        }
+        })
     }
 }
 
@@ -108,7 +122,9 @@ impl<T: Outgoing> Deref for Ruma<T> {
 
 /// This struct converts ruma responses into rocket http responses.
 pub struct MatrixResult<T>(pub std::result::Result<T, Error>);
-impl<T: TryInto<http::Response<Vec<u8>>>> TryInto<http::Response<Vec<u8>>> for MatrixResult<T> {
+
+impl<T: TryInto<http::Response<Vec<u8>>>> TryInto<http::Response<Vec<u8>>> for MatrixResult<T>
+{
     type Error = T::Error;
 
     fn try_into(self) -> Result<http::Response<Vec<u8>>, T::Error> {
@@ -119,13 +135,14 @@ impl<T: TryInto<http::Response<Vec<u8>>>> TryInto<http::Response<Vec<u8>>> for M
     }
 }
 
-impl<'r, T: TryInto<http::Response<Vec<u8>>>> Responder<'r> for MatrixResult<T> {
-    fn respond_to(self, _: &Request) -> rocket::response::Result<'r> {
+#[rocket::async_trait]
+impl<'r, T: Send + TryInto<http::Response<Vec<u8>>>> Responder<'r> for MatrixResult<T> where T::Error: Send{
+    async fn respond_to(self, _: &'r Request<'_>) -> response::Result<'r> {
         let http_response: Result<http::Response<_>, _> = self.try_into();
         match http_response {
             Ok(http_response) => {
                 let mut response = rocket::response::Response::build();
-                response.sized_body(Cursor::new(http_response.body().clone()));
+                response.sized_body(Cursor::new(http_response.body().clone())).await;
 
                 for header in http_response.headers() {
                     response