feat(session): use real async traits (#365)

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
         target:
           - { name: Linux, os: ubuntu-latest, triple: x86_64-unknown-linux-gnu }
         version:
-          - { name: msrv, version: 1.68.0 }
+          - { name: msrv, version: 1.75.0 }
           - { name: stable, version: stable }
 
     name: ${{ matrix.target.name }} / ${{ matrix.version.name }}
@@ -83,7 +83,7 @@ jobs:
           - { name: macOS, os: macos-latest, triple: x86_64-apple-darwin }
           - { name: Windows, os: windows-latest, triple: x86_64-pc-windows-msvc }
         version:
-          - { name: msrv, version: 1.68.0 }
+          - { name: msrv, version: 1.75.0 }
           - { name: stable, version: stable }
 
     name: ${{ matrix.target.name }} / ${{ matrix.version.name }}

Cargo.toml

@@ -13,9 +13,10 @@ members = [
 ]
 
 [workspace.package]
+homepage = "https://actix.rs"
 license = "MIT OR Apache-2.0"
 edition = "2021"
-rust-version = "1.68"
+rust-version = "1.75"
 
 [patch.crates-io]
 actix-cors = { path = "./actix-cors" }

actix-cors/CHANGES.md

@@ -3,6 +3,7 @@
 ## Unreleased
 
 - `Cors` is now marked `#[must_use]`.
+- Minimum supported Rust version (MSRV) is now 1.75.
 
 ## 0.6.5
 

actix-identity/CHANGES.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Minimum supported Rust version (MSRV) is now 1.75.
+
 ## 0.6.0
 
 - Add `error` module.

actix-protobuf/CHANGES.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Minimum supported Rust version (MSRV) is now 1.75.
+
 ## 0.10.0
 
 - Updated `prost` dependency to `0.12`.

actix-redis/CHANGES.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Minimum supported Rust version (MSRV) is now 1.75.
+
 ## 0.13.0
 
 - Update `redis-async` dependency to `0.16`.

actix-session/CHANGES.md

@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+- Remove use of `async-trait` on `SessionStore` trait.
+- Minimum supported Rust version (MSRV) is now 1.75.
+
 ## 0.8.0
 
 - Set secure attribute when adding a session removal cookie.

actix-session/Cargo.toml

@@ -7,8 +7,8 @@ authors = [
 ]
 description = "Session management for Actix Web"
 keywords = ["http", "web", "framework", "async", "session"]
-homepage = "https://actix.rs"
-repository = "https://github.com/actix/actix-extras.git"
+repository = "https://github.com/actix/actix-extras/tree/master/actix-session"
+homepage.workspace = true
 license.workspace = true
 edition.workspace = true
 rust-version.workspace = true
@@ -30,7 +30,6 @@ actix-utils = "3"
 actix-web = { version = "4", default-features = false, features = ["cookies", "secure-cookies"] }
 
 anyhow = "1"
-async-trait = "0.1"
 derive_more = "0.99.7"
 rand = { version = "0.8", optional = true }
 serde = { version = "1" }

actix-session/src/storage/cookie.rs

@@ -49,7 +49,6 @@ use crate::storage::{
 #[non_exhaustive]
 pub struct CookieSessionStore;
 
-#[async_trait::async_trait(?Send)]
 impl SessionStore for CookieSessionStore {
     async fn load(&self, session_key: &SessionKey) -> Result<Option<SessionState>, LoadError> {
         serde_json::from_str(session_key.as_ref())
@@ -67,10 +66,10 @@ impl SessionStore for CookieSessionStore {
             .map_err(anyhow::Error::new)
             .map_err(SaveError::Serialization)?;
 
-        Ok(session_key
+        session_key
             .try_into()
             .map_err(Into::into)
-            .map_err(SaveError::Other)?)
+            .map_err(SaveError::Other)
     }
 
     async fn update(

actix-session/src/storage/interface.rs

@@ -1,4 +1,4 @@
-use std::collections::HashMap;
+use std::{collections::HashMap, future::Future};
 
 use actix_web::cookie::time::Duration;
 use derive_more::Display;
@@ -10,41 +10,39 @@ pub(crate) type SessionState = HashMap<String, String>;
 /// The interface to retrieve and save the current session data from/to the chosen storage backend.
 ///
 /// You can provide your own custom session store backend by implementing this trait.
-///
-/// [`async-trait`](https://docs.rs/async-trait) is used for this trait's definition. Therefore, it
-/// is required for implementations, too. In particular, we use the send-optional variant:
-/// `#[async_trait(?Send)]`.
-#[async_trait::async_trait(?Send)]
 pub trait SessionStore {
     /// Loads the session state associated to a session key.
-    async fn load(&self, session_key: &SessionKey) -> Result<Option<SessionState>, LoadError>;
+    fn load(
+        &self,
+        session_key: &SessionKey,
+    ) -> impl Future<Output = Result<Option<SessionState>, LoadError>>;
 
     /// Persist the session state for a newly created session.
     ///
     /// Returns the corresponding session key.
-    async fn save(
+    fn save(
         &self,
         session_state: SessionState,
         ttl: &Duration,
-    ) -> Result<SessionKey, SaveError>;
+    ) -> impl Future<Output = Result<SessionKey, SaveError>>;
 
     /// Updates the session state associated to a pre-existing session key.
-    async fn update(
+    fn update(
         &self,
         session_key: SessionKey,
         session_state: SessionState,
         ttl: &Duration,
-    ) -> Result<SessionKey, UpdateError>;
+    ) -> impl Future<Output = Result<SessionKey, UpdateError>>;
 
     /// Updates the TTL of the session state associated to a pre-existing session key.
-    async fn update_ttl(
+    fn update_ttl(
         &self,
         session_key: &SessionKey,
         ttl: &Duration,
-    ) -> Result<(), anyhow::Error>;
+    ) -> impl Future<Output = Result<(), anyhow::Error>>;
 
     /// Deletes a session from the store.
-    async fn delete(&self, session_key: &SessionKey) -> Result<(), anyhow::Error>;
+    fn delete(&self, session_key: &SessionKey) -> impl Future<Output = Result<(), anyhow::Error>>;
 }
 
 // We cannot derive the `Error` implementation using `derive_more` for our custom errors:

actix-session/src/storage/redis_actor.rs

@@ -118,7 +118,6 @@ impl RedisActorSessionStoreBuilder {
     }
 }
 
-#[async_trait::async_trait(?Send)]
 impl SessionStore for RedisActorSessionStore {
     async fn load(&self, session_key: &SessionKey) -> Result<Option<SessionState>, LoadError> {
         let cache_key = (self.configuration.cache_keygen)(session_key.as_ref());

actix-session/src/storage/redis_rs.rs

@@ -132,7 +132,6 @@ impl RedisSessionStoreBuilder {
     }
 }
 
-#[async_trait::async_trait(?Send)]
 impl SessionStore for RedisSessionStore {
     async fn load(&self, session_key: &SessionKey) -> Result<Option<SessionState>, LoadError> {
         let cache_key = (self.configuration.cache_keygen)(session_key.as_ref());

actix-session/tests/opaque_errors.rs

@@ -44,7 +44,6 @@ async fn errors_are_opaque() {
 
 struct MockStore;
 
-#[async_trait::async_trait(?Send)]
 impl SessionStore for MockStore {
     async fn load(
         &self,

actix-settings/CHANGES.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Minimum supported Rust version (MSRV) is now 1.75.
+
 ## 0.7.1
 
 - Fix doc examples.

actix-web-httpauth/CHANGES.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Minimum supported Rust version (MSRV) is now 1.75.
+
 ## 0.8.1
 
 - Implement `From<Basic>` for `BasicAuth`.

actix-ws/README.md

@@ -10,8 +10,8 @@
 ## Documentation & Resources
 
 - [API Documentation](https://docs.rs/actix-ws)
-- [Example Projects](https://github.com/actix/examples/tree/master/websockets)
-- Minimum Supported Rust Version (MSRV): 1.68
+- [Example Chat Project](https://github.com/actix/examples/tree/master/websockets/chat-actorless)
+- Minimum Supported Rust Version (MSRV): 1.75
 
 ## Usage