From b82df13082869dc4d455e15c2955e20de0b55675 Mon Sep 17 00:00:00 2001
From: Quentin Dufour <quentin@deuxfleurs.fr>
Date: Tue, 7 Jun 2022 12:38:59 +0200
Subject: Refactor

---
 src/service.rs | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 src/service.rs

(limited to 'src/service.rs')

diff --git a/src/service.rs b/src/service.rs
new file mode 100644
index 0000000..888a217
--- /dev/null
+++ b/src/service.rs
@@ -0,0 +1,68 @@
+use std::sync::Arc;
+use std::task::{Context, Poll};
+
+use anyhow::Result;
+use boitalettres::server::accept::addr::AddrStream;
+use boitalettres::errors::Error as BalError;
+use boitalettres::proto::{Request, Response};
+use futures::future::BoxFuture;
+use imap_codec::types::command::CommandBody;
+use tower::Service;
+
+use crate::command;
+use crate::mailstore::Mailstore;
+
+pub struct Instance {
+    pub mailstore: Arc<Mailstore>,
+}
+impl Instance {
+    pub fn new(mailstore: Arc<Mailstore>) -> Self {
+        Self { mailstore }
+    }
+}
+impl<'a> Service<&'a AddrStream> for Instance {
+    type Response = Connection;
+    type Error = anyhow::Error;
+    type Future = BoxFuture<'static, Result<Self::Response>>;
+
+    fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+        Poll::Ready(Ok(()))
+    }
+
+    fn call(&mut self, addr: &'a AddrStream) -> Self::Future {
+        tracing::info!(remote_addr = %addr.remote_addr, local_addr = %addr.local_addr, "accept");
+        let ms = self.mailstore.clone();
+        Box::pin(async { Ok(Connection::new(ms)) })
+    }
+}
+
+pub struct Connection {
+    pub mailstore: Arc<Mailstore>,
+}
+impl Connection {
+    pub fn new(mailstore: Arc<Mailstore>) -> Self {
+        Self { mailstore }
+    }
+}
+impl Service<Request> for Connection {
+    type Response = Response;
+    type Error = BalError;
+    type Future = BoxFuture<'static, Result<Self::Response, Self::Error>>;
+
+    fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+        Poll::Ready(Ok(()))
+    }
+
+    fn call(&mut self, req: Request) -> Self::Future {
+        tracing::debug!("Got request: {:#?}", req);
+        let cmd = command::Command::new(self.mailstore.clone());
+        Box::pin(async move {
+            match req.body {
+                CommandBody::Capability => cmd.capability().await,
+                CommandBody::Login { username, password } => cmd.login(username, password).await,
+                _ => Response::bad("Error in IMAP command received by server."),
+            }
+        })
+    }
+}
+
-- 
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