initial commit

.gitignore

@@ -0,0 +1,2 @@
+/target
+Cargo.lock

Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "async-redis-session"
+version = "0.1.0"
+authors = ["Jacob Rothstein <[email protected]>"]
+edition = "2018"
+
+[dependencies]
+redis = { version = "0.16.0", features = ["aio"] }
+async-session = "1.0.2"
+serde = "1.0.114"
+serde_json = "1.0.56"
+async-trait = "0.1.36"
+http-types = "2.2.1"
+
+[patch.crates-io]
+async-session = { path = "../async-session" }#git = "https://github.com/jbr/async-session", branch = "tide" }

src/lib.rs

@@ -0,0 +1,83 @@
+use async_session::{uuid::Uuid, Session, SessionStore};
+use http_types::cookies::Cookie;
+use redis::AsyncCommands;
+use redis::{Client, RedisError};
+use std::time::Duration;
+
+#[derive(Clone)]
+pub struct RedisSessionStore {
+    client: Client,
+    ttl: Duration,
+}
+
+impl RedisSessionStore {
+    pub fn from_client(client: Client) -> Self {
+        Self {
+            client,
+            ttl: Duration::from_secs(86400),
+        }
+    }
+
+    pub fn new(connection_info: impl redis::IntoConnectionInfo) -> Result<Self, RedisError> {
+        Ok(Self::from_client(Client::open(connection_info)?))
+    }
+}
+
+#[async_trait::async_trait]
+impl SessionStore for RedisSessionStore {
+    type Error = Error;
+
+    async fn load_session(&self, cookie: Cookie<'_>) -> Result<Option<Session>, Self::Error> {
+        let mut connection = self.client.get_async_std_connection().await?;
+        let value: String = connection.get(cookie.value()).await?;
+        let session: Session = serde_json::from_str(&value)?;
+        Ok(Some(session))
+    }
+
+    async fn store_session(&self, session: Session) -> Result<String, Self::Error> {
+        let id = session.id();
+        let mut connection = self.client.get_async_std_connection().await?;
+        let string = serde_json::to_string(&session)?;
+
+        let _: () = connection
+            .set_ex(&id, string, self.ttl.as_secs() as usize)
+            .await?;
+
+        Ok(id)
+    }
+
+    async fn create_session(&self) -> Result<Session, Self::Error> {
+        let sess = Session::new();
+        sess.insert("id".to_string(), Uuid::new_v4().to_string());
+        Ok(sess)
+    }
+}
+
+#[derive(Debug)]
+pub enum Error {
+    RedisError(RedisError),
+    SerdeError(serde_json::Error),
+}
+
+impl std::fmt::Display for Error {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Error::RedisError(e) => e.fmt(f),
+            Error::SerdeError(e) => e.fmt(f),
+        }
+    }
+}
+
+impl From<serde_json::Error> for Error {
+    fn from(e: serde_json::Error) -> Self {
+        Self::SerdeError(e)
+    }
+}
+
+impl From<RedisError> for Error {
+    fn from(e: RedisError) -> Self {
+        Self::RedisError(e)
+    }
+}
+
+impl std::error::Error for Error {}