Serve web client if configuration option is present

config.yaml.example

@@ -1,5 +1,6 @@
 database_url: postgres://mitra:mitra@127.0.0.1:55432/mitra
 storage_dir: files
+web_client_dir: null
 
 http_host: '127.0.0.1'
 http_port: 8380

contrib/mitra_config.yaml

@@ -2,6 +2,8 @@
 
 database_url: postgres://mitra:mitra@127.0.0.1:5432/mitra
 storage_dir: /var/lib/mitra
+# Path to web client static files
+#web_client_dir: /usr/share/mitra/www
 
 http_host: '127.0.0.1'
 http_port: 8383

src/config/main.rs

@@ -69,6 +69,7 @@ pub struct Config {
     // Core settings
     pub database_url: String,
     pub storage_dir: PathBuf,
+    pub web_client_dir: Option<PathBuf>,
 
     pub http_host: String,
     pub http_port: u32,

src/lib.rs

@@ -18,4 +18,4 @@ mod monero;
 pub mod nodeinfo;
 mod utils;
 pub mod webfinger;
-mod web_client;
+pub mod web_client;

src/main.rs

@@ -33,6 +33,7 @@ use mitra::mastodon_api::timelines::views::timeline_api_scope;
 use mitra::mastodon_api::UPLOAD_MAX_SIZE;
 use mitra::nodeinfo::views as nodeinfo;
 use mitra::webfinger::views as webfinger;
+use mitra::web_client::views::web_client_service;
 
 #[actix_web::main]
 async fn main() -> std::io::Result<()> {
@@ -155,8 +156,6 @@ async fn main() -> std::io::Result<()> {
             .service(activitypub::actor_scope())
             .service(activitypub::instance_actor_scope())
             .service(activitypub::object_view)
-            .service(activitypub::frontend_profile_redirect)
-            .service(activitypub::frontend_post_redirect)
             .service(atom::get_atom_feed)
             .service(nodeinfo::get_nodeinfo)
             .service(nodeinfo::get_nodeinfo_2_0);
@@ -169,6 +168,14 @@ async fn main() -> std::io::Result<()> {
                 ));
             };
         };
+        if let Some(ref web_client_dir) = config.web_client_dir {
+            app = app.service(web_client_service(web_client_dir));
+        } else {
+            // Enable redirects only when serving of web client is disabled
+            app = app
+                .service(activitypub::frontend_profile_redirect)
+                .service(activitypub::frontend_post_redirect)
+        };
         app
     })
     .workers(num_workers)

src/web_client/mod.rs

@@ -1 +1,2 @@
 pub mod urls;
+pub mod views;

src/web_client/views.rs

@@ -0,0 +1,29 @@
+use std::path::Path;
+
+use actix_files::{Files, NamedFile};
+use actix_web::{
+    dev::{fn_service, ServiceRequest, ServiceResponse},
+    web::Data,
+};
+
+use crate::config::Config;
+
+pub fn web_client_service(web_client_dir: &Path) -> Files {
+    Files::new("/", web_client_dir)
+        .index_file("index.html")
+        .prefer_utf8(true)
+        .default_handler(fn_service(|service_request: ServiceRequest| {
+            // Workaround for https://github.com/actix/actix-web/issues/2617
+            let (request, _) = service_request.into_parts();
+            let index_path = request.app_data::<Data<Config>>()
+                .expect("app data should contain config")
+                .web_client_dir.as_ref()
+                .expect("web_client_dir should be present in config")
+                .join("index.html");
+            async {
+                let index_file = NamedFile::open_async(index_path).await?;
+                let response = index_file.into_response(&request);
+                Ok(ServiceResponse::new(request, response))
+            }
+        }))
+}