first commit

src/lib.rs

@@ -0,0 +1,68 @@
+//! ActivePush - Exchange ActiveSync gateway for IMAP/SMTP + CalDAV/CardDAV (Z-Push rewrite).
+
+pub mod admin;
+pub mod app;
+pub mod autodiscover;
+pub mod backend;
+pub mod config;
+pub mod db;
+pub mod eas;
+pub mod logging;
+pub mod metrics;
+pub mod probe;
+pub mod server;
+pub mod tls;
+pub mod util;
+pub mod wbxml;
+pub mod xmltree;
+
+use std::sync::Arc;
+
+use axum::routing::any;
+use axum::Router;
+
+/// Public (device facing) router: ActiveSync + Autodiscover. Paths match the nginx
+/// locations previously routed to Z-Push.
+pub fn public_router(app: Arc<app::App>) -> Router {
+    Router::new()
+        .route("/Microsoft-Server-ActiveSync", any(eas::handler))
+        .route("/microsoft-server-activesync", any(eas::handler))
+        .route("/AutoDiscover/AutoDiscover.xml", any(autodiscover::handler))
+        .route("/Autodiscover/Autodiscover.xml", any(autodiscover::handler))
+        .route("/autodiscover/autodiscover.xml", any(autodiscover::handler))
+        .route("/healthz", axum::routing::get(healthz))
+        .route("/", axum::routing::get(index))
+        .fallback(not_found)
+        .with_state(app)
+}
+
+async fn index() -> impl axum::response::IntoResponse {
+    (
+        [("Content-Type", "text/plain; charset=utf-8")],
+        "ActivePush - Exchange ActiveSync endpoint.\nDevices connect to /Microsoft-Server-ActiveSync.\n",
+    )
+}
+
+async fn not_found() -> impl axum::response::IntoResponse {
+    (
+        axum::http::StatusCode::NOT_FOUND,
+        [("Content-Type", "text/plain; charset=utf-8")],
+        "Not found.\n",
+    )
+}
+
+/// Liveness + database check for load balancers and monitoring.
+async fn healthz(
+    axum::extract::State(app): axum::extract::State<Arc<app::App>>,
+) -> impl axum::response::IntoResponse {
+    match sqlx::query_scalar::<_, i64>("SELECT 1")
+        .fetch_one(&app.db)
+        .await
+    {
+        Ok(_) => (axum::http::StatusCode::OK, "ok\n"),
+        Err(_) => (
+            axum::http::StatusCode::SERVICE_UNAVAILABLE,
+            "database unavailable\n",
+        ),
+    }
+}