frontend: embed assets into binary

Cargo.lock

@@ -19,29 +19,6 @@ dependencies = [
  "tracing",
 ]
 
-[[package]]
-name = "actix-files"
-version = "0.6.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0773d59061dedb49a8aed04c67291b9d8cf2fe0b60130a381aab53c6dd86e9be"
-dependencies = [
- "actix-http",
- "actix-service",
- "actix-utils",
- "actix-web",
- "bitflags",
- "bytes",
- "derive_more 0.99.18",
- "futures-core",
- "http-range",
- "log",
- "mime",
- "mime_guess",
- "percent-encoding",
- "pin-project-lite",
- "v_htmlescape",
-]
-
 [[package]]
 name = "actix-http"
 version = "3.9.0"
@@ -1483,12 +1460,6 @@ dependencies = [
  "pin-project-lite",
 ]
 
-[[package]]
-name = "http-range"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21dec9db110f5f872ed9699c3ecf50cf16f423502706ba5c72462e28d3157573"
-
 [[package]]
 name = "httparse"
 version = "1.9.5"
@@ -2486,6 +2457,40 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "rust-embed"
+version = "8.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa66af4a4fdd5e7ebc276f115e895611a34739a9c1c01028383d612d550953c0"
+dependencies = [
+ "rust-embed-impl",
+ "rust-embed-utils",
+ "walkdir",
+]
+
+[[package]]
+name = "rust-embed-impl"
+version = "8.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6125dbc8867951125eec87294137f4e9c2c96566e61bf72c45095a7c77761478"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "rust-embed-utils",
+ "syn",
+ "walkdir",
+]
+
+[[package]]
+name = "rust-embed-utils"
+version = "8.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e5347777e9aacb56039b0e1f28785929a8a3b709e87482e7442c72e7c12529d"
+dependencies = [
+ "sha2",
+ "walkdir",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.24"
@@ -2605,12 +2610,15 @@ dependencies = [
 name = "rustical_frontend"
 version = "0.1.0"
 dependencies = [
- "actix-files",
  "actix-session",
  "actix-web",
  "anyhow",
  "askama",
  "askama_actix",
+ "futures-core",
+ "hex",
+ "mime_guess",
+ "rust-embed",
  "rustical_store",
  "serde",
  "thiserror",
@@ -2679,6 +2687,15 @@ version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
 
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.2.0"
@@ -3573,12 +3590,6 @@ dependencies = [
  "getrandom",
 ]
 
-[[package]]
-name = "v_htmlescape"
-version = "0.15.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e8257fbc510f0a46eb602c10215901938b5c2a7d5e70fc11483b1d3c9b5b18c"
-
 [[package]]
 name = "valuable"
 version = "0.1.0"
@@ -3597,6 +3608,16 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "walkdir"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
+dependencies = [
+ "same-file",
+ "winapi-util",
+]
+
 [[package]]
 name = "want"
 version = "0.3.1"
@@ -3709,6 +3730,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
+dependencies = [
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"

Cargo.toml

@@ -54,6 +54,10 @@ quick-xml = { version = "0.37", features = [
   "serde-types",
   "serialize",
 ] }
+rust-embed = "8.5"
+futures-core = "0.3.31"
+hex = "0.4.3"
+mime_guess = "2.0.5"
 itertools = "0.13"
 log = "0.4"
 strum = { version = "0.26", features = ["strum_macros", "derive"] }

crates/frontend/Cargo.toml

@@ -16,4 +16,7 @@ thiserror = { workspace = true }
 tokio = { workspace = true }
 actix-web = { workspace = true }
 rustical_store = { workspace = true }
-actix-files = "0.6"
+rust-embed.workspace = true
+futures-core.workspace = true
+hex.workspace = true
+mime_guess.workspace = true

crates/frontend/src/assets.rs

@@ -0,0 +1,113 @@
+use std::marker::PhantomData;
+
+use actix_web::{
+    body::BoxBody,
+    dev::{
+        HttpServiceFactory, ResourceDef, Service, ServiceFactory, ServiceRequest, ServiceResponse,
+    },
+    http::{header, Method},
+    HttpResponse,
+};
+use futures_core::future::LocalBoxFuture;
+use rust_embed::RustEmbed;
+
+#[derive(RustEmbed)]
+#[folder = "frontend/dist/assets"]
+pub struct Assets;
+
+pub struct EmbedService<E>
+where
+    E: 'static + RustEmbed,
+{
+    _embed: PhantomData<E>,
+    prefix: String,
+}
+
+impl<E> EmbedService<E>
+where
+    E: 'static + RustEmbed,
+{
+    pub fn new(prefix: String) -> Self {
+        Self {
+            prefix,
+            _embed: PhantomData,
+        }
+    }
+}
+
+impl<E> HttpServiceFactory for EmbedService<E>
+where
+    E: 'static + RustEmbed,
+{
+    fn register(self, config: &mut actix_web::dev::AppService) {
+        let resource_def = if config.is_root() {
+            ResourceDef::root_prefix(&self.prefix)
+        } else {
+            ResourceDef::prefix(&self.prefix)
+        };
+        config.register_service(resource_def, None, self, None);
+    }
+}
+
+impl<E> ServiceFactory<ServiceRequest> for EmbedService<E>
+where
+    E: 'static + RustEmbed,
+{
+    type Response = ServiceResponse;
+    type Error = actix_web::Error;
+    type Config = ();
+    type Service = EmbedService<E>;
+    type InitError = ();
+    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        let prefix = self.prefix.clone();
+        Box::pin(async move {
+            Ok(Self {
+                prefix,
+                _embed: PhantomData,
+            })
+        })
+    }
+}
+
+impl<E> Service<ServiceRequest> for EmbedService<E>
+where
+    E: 'static + RustEmbed,
+{
+    type Response = ServiceResponse<BoxBody>;
+    type Error = actix_web::Error;
+    type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;
+
+    actix_web::dev::always_ready!();
+
+    fn call(&self, req: ServiceRequest) -> Self::Future {
+        Box::pin(async move {
+            if req.method() != Method::GET && req.method() != Method::HEAD {
+                return Ok(req.into_response(HttpResponse::MethodNotAllowed()));
+            }
+            let path = req.match_info().unprocessed().trim_start_matches('/');
+
+            match E::get(path) {
+                Some(file) => {
+                    let data = file.data;
+                    let hash = hex::encode(file.metadata.sha256_hash());
+                    let mime = mime_guess::from_path(path).first_or_octet_stream();
+
+                    let body = if req.method() == Method::HEAD {
+                        Default::default()
+                    } else {
+                        data
+                    };
+                    Ok(req.into_response(
+                        HttpResponse::Ok()
+                            .content_type(mime)
+                            .insert_header((header::ETAG, hash))
+                            .body(body),
+                    ))
+                }
+                None => Ok(req.into_response(HttpResponse::NotFound())),
+            }
+        })
+    }
+}

crates/frontend/src/lib.rs

@@ -6,6 +6,7 @@ use actix_web::{
     Responder,
 };
 use askama::Template;
+use assets::{Assets, EmbedService};
 use routes::login::{route_get_login, route_post_login};
 use rustical_store::{
     auth::{AuthenticationMiddleware, AuthenticationProvider, User},
@@ -13,6 +14,7 @@ use rustical_store::{
 };
 use std::sync::Arc;
 
+mod assets;
 mod config;
 mod routes;
 
@@ -72,11 +74,7 @@ pub fn configure_frontend<AP: AuthenticationProvider, C: CalendarStore + ?Sized>
             )
             .app_data(Data::from(auth_provider))
             .app_data(Data::from(store.clone()))
-            .service(
+            .service(EmbedService::<Assets>::new("/assets".to_owned()))
-                // TODO: Bundle assets in a neat way
-                actix_files::Files::new("/assets", "crates/frontend/frontend/dist/assets")
-                    .prefer_utf8(true),
-            )
             .service(
                 web::resource("/user/{user}").route(web::method(Method::GET).to(route_user::<C>)),
             )