Add on-connect callback #946

actix-http/src/h1/dispatcher.rs

@@ -16,6 +16,8 @@ use crate::body::{Body, BodySize, MessageBody, ResponseBody};
 use crate::config::ServiceConfig;
 use crate::error::{DispatchError, Error};
 use crate::error::{ParseError, PayloadError};
+use crate::helpers::DataFactory;
+use crate::httpmessage::HttpMessage;
 use crate::request::Request;
 use crate::response::Response;
 
@@ -81,6 +83,7 @@ where
     service: CloneableService<S>,
     expect: CloneableService<X>,
     upgrade: Option<CloneableService<U>>,
+    on_connect: Option<Box<dyn DataFactory>>,
     flags: Flags,
     peer_addr: Option<net::SocketAddr>,
     error: Option<DispatchError>,
@@ -174,12 +177,13 @@ where
     U::Error: fmt::Display,
 {
     /// Create http/1 dispatcher.
-    pub fn new(
+    pub(crate) fn new(
         stream: T,
         config: ServiceConfig,
         service: CloneableService<S>,
         expect: CloneableService<X>,
         upgrade: Option<CloneableService<U>>,
+        on_connect: Option<Box<dyn DataFactory>>,
     ) -> Self {
         Dispatcher::with_timeout(
             stream,
@@ -190,11 +194,12 @@ where
             service,
             expect,
             upgrade,
+            on_connect,
         )
     }
 
     /// Create http/1 dispatcher with slow request timeout.
-    pub fn with_timeout(
+    pub(crate) fn with_timeout(
         io: T,
         codec: Codec,
         config: ServiceConfig,
@@ -203,6 +208,7 @@ where
         service: CloneableService<S>,
         expect: CloneableService<X>,
         upgrade: Option<CloneableService<U>>,
+        on_connect: Option<Box<dyn DataFactory>>,
     ) -> Self {
         let keepalive = config.keep_alive_enabled();
         let flags = if keepalive {
@@ -234,6 +240,7 @@ where
                 service,
                 expect,
                 upgrade,
+                on_connect,
                 flags,
                 ka_expire,
                 ka_timer,
@@ -495,6 +502,11 @@ where
                             let pl = self.codec.message_type();
                             req.head_mut().peer_addr = self.peer_addr;
 
+                            // on_connect data
+                            if let Some(ref on_connect) = self.on_connect {
+                                on_connect.set(&mut req.extensions_mut());
+                            }
+
                             if pl == MessageType::Stream && self.upgrade.is_some() {
                                 self.messages.push_back(DispatcherMessage::Upgrade(req));
                                 break;
@@ -851,6 +863,7 @@ mod tests {
                 ),
                 CloneableService::new(ExpectHandler),
                 None,
+                None,
             );
             assert!(h1.poll().is_err());
 

actix-http/src/h1/service.rs

@@ -1,5 +1,6 @@
 use std::fmt;
 use std::marker::PhantomData;
+use std::rc::Rc;
 
 use actix_codec::Framed;
 use actix_server_config::{Io, IoStream, ServerConfig as SrvConfig};
@@ -11,6 +12,7 @@ use futures::{try_ready, Async, Future, IntoFuture, Poll, Stream};
 use crate::body::MessageBody;
 use crate::config::{KeepAlive, ServiceConfig};
 use crate::error::{DispatchError, Error, ParseError};
+use crate::helpers::DataFactory;
 use crate::request::Request;
 use crate::response::Response;
 
@@ -24,6 +26,7 @@ pub struct H1Service<T, P, S, B, X = ExpectHandler, U = UpgradeHandler<T>> {
     cfg: ServiceConfig,
     expect: X,
     upgrade: Option<U>,
+    on_connect: Option<Rc<Fn(&T) -> Box<dyn DataFactory>>>,
     _t: PhantomData<(T, P, B)>,
 }
 
@@ -44,6 +47,7 @@ where
             srv: service.into_new_service(),
             expect: ExpectHandler,
             upgrade: None,
+            on_connect: None,
             _t: PhantomData,
         }
     }
@@ -55,6 +59,7 @@ where
             srv: service.into_new_service(),
             expect: ExpectHandler,
             upgrade: None,
+            on_connect: None,
             _t: PhantomData,
         }
     }
@@ -79,6 +84,7 @@ where
             cfg: self.cfg,
             srv: self.srv,
             upgrade: self.upgrade,
+            on_connect: self.on_connect,
             _t: PhantomData,
         }
     }
@@ -94,9 +100,19 @@ where
             cfg: self.cfg,
             srv: self.srv,
             expect: self.expect,
+            on_connect: self.on_connect,
             _t: PhantomData,
         }
     }
+
+    /// Set on connect callback.
+    pub(crate) fn on_connect(
+        mut self,
+        f: Option<Rc<Fn(&T) -> Box<dyn DataFactory>>>,
+    ) -> Self {
+        self.on_connect = f;
+        self
+    }
 }
 
 impl<T, P, S, B, X, U> NewService for H1Service<T, P, S, B, X, U>
@@ -133,6 +149,7 @@ where
             fut_upg: self.upgrade.as_ref().map(|f| f.new_service(cfg)),
             expect: None,
             upgrade: None,
+            on_connect: self.on_connect.clone(),
             cfg: Some(self.cfg.clone()),
             _t: PhantomData,
         }
@@ -157,6 +174,7 @@ where
     fut_upg: Option<U::Future>,
     expect: Option<X::Service>,
     upgrade: Option<U::Service>,
+    on_connect: Option<Rc<Fn(&T) -> Box<dyn DataFactory>>>,
     cfg: Option<ServiceConfig>,
     _t: PhantomData<(T, P, B)>,
 }
@@ -205,6 +223,7 @@ where
             service,
             self.expect.take().unwrap(),
             self.upgrade.take(),
+            self.on_connect.clone(),
         )))
     }
 }
@@ -214,6 +233,7 @@ pub struct H1ServiceHandler<T, P, S, B, X, U> {
     srv: CloneableService<S>,
     expect: CloneableService<X>,
     upgrade: Option<CloneableService<U>>,
+    on_connect: Option<Rc<Fn(&T) -> Box<dyn DataFactory>>>,
     cfg: ServiceConfig,
     _t: PhantomData<(T, P, B)>,
 }
@@ -234,12 +254,14 @@ where
         srv: S,
         expect: X,
         upgrade: Option<U>,
+        on_connect: Option<Rc<Fn(&T) -> Box<dyn DataFactory>>>,
     ) -> H1ServiceHandler<T, P, S, B, X, U> {
         H1ServiceHandler {
             srv: CloneableService::new(srv),
             expect: CloneableService::new(expect),
             upgrade: upgrade.map(|s| CloneableService::new(s)),
             cfg,
+            on_connect,
             _t: PhantomData,
         }
     }
@@ -292,12 +314,21 @@ where
     }
 
     fn call(&mut self, req: Self::Request) -> Self::Future {
+        let io = req.into_parts().0;
+
+        let on_connect = if let Some(ref on_connect) = self.on_connect {
+            Some(on_connect(&io))
+        } else {
+            None
+        };
+
         Dispatcher::new(
-            req.into_parts().0,
+            io,
             self.cfg.clone(),
             self.srv.clone(),
             self.expect.clone(),
             self.upgrade.clone(),
+            on_connect,
         )
     }
 }