Serve static files if no other endpoints match

Cargo.lock

@@ -123,6 +123,15 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "block-buffer"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "bytes"
 version = "1.4.0"
@@ -144,6 +153,35 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "cpufeatures"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a17b76ff3a4162b0b27f354a0c87015ddad39d35f9c0c36607a3bdd175dde1f1"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "crypto-common"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
+[[package]]
+name = "digest"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -192,6 +230,16 @@ dependencies = [
  "pin-utils",
 ]
 
+[[package]]
+name = "generic-array"
+version = "0.14.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
 [[package]]
 name = "gimli"
 version = "0.27.3"
@@ -313,6 +361,16 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
+[[package]]
+name = "mime_guess"
+version = "2.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4192263c238a5f0d0c6bfd21f336a313a4ce1c450542449ca191bb657b4642ef"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.1"
@@ -446,6 +504,40 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "rust-embed"
+version = "6.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a36224c3276f8c4ebc8c20f158eca7ca4359c8db89991c4925132aaaf6702661"
+dependencies = [
+ "rust-embed-impl",
+ "rust-embed-utils",
+ "walkdir",
+]
+
+[[package]]
+name = "rust-embed-impl"
+version = "6.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49b94b81e5b2c284684141a2fb9e2a31be90638caf040bf9afbc5a0416afe1ac"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "rust-embed-utils",
+ "syn",
+ "walkdir",
+]
+
+[[package]]
+name = "rust-embed-utils"
+version = "7.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d38ff6bf570dc3bb7100fce9f7b60c33fa71d80e88da3f2580df4ff2bdded74"
+dependencies = [
+ "sha2",
+ "walkdir",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.23"
@@ -464,6 +556,15 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ad4cc8da4ef723ed60bced201181d83791ad433213d8c24efffda1eec85d741"
 
+[[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"
@@ -509,6 +610,17 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "sha2"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "479fb9d862239e610720565ca91403019f2f00410f1864c5aa7479b950a76ed8"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.4.1"
@@ -557,6 +669,8 @@ version = "0.0.0"
 dependencies = [
  "anyhow",
  "axum",
+ "mime_guess",
+ "rust-embed",
  "tokio",
 ]
 
@@ -646,12 +760,43 @@ version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3528ecfd12c466c6f163363caf2d02a71161dd5e1cc6ae7b34207ea2d42d81ed"
 
+[[package]]
+name = "typenum"
+version = "1.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "497961ef93d974e23eb6f433eb5fe1b7930b659f06d12dec6fc44a8f554c0bba"
+
+[[package]]
+name = "unicase"
+version = "2.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50f37be617794602aabbeee0be4f259dc1778fabe05e2d67ee8f79326d5cb4f6"
+dependencies = [
+ "version_check",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "301abaae475aa91687eb82514b328ab47a211a533026cb25fc3e519b86adfc3c"
 
+[[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
+
+[[package]]
+name = "walkdir"
+version = "2.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36df944cda56c7d8d8b7496af378e6b16de9284591917d307c9b4d313c44e698"
+dependencies = [
+ "same-file",
+ "winapi-util",
+]
+
 [[package]]
 name = "want"
 version = "0.3.1"
@@ -683,6 +828,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"

Cargo.toml

@@ -6,4 +6,6 @@ edition = "2021"
 [dependencies]
 anyhow = "1.0.72"
 axum = { version = "0.6.19", features = ["macros"] }
+mime_guess = "2.0.4"
+rust-embed = "6.8.1"
 tokio = { version = "1.29.1", features = ["full"] }

src/main.rs

@@ -1,7 +1,11 @@
+mod r#static;
+
 use axum::{routing::get, Router};
 
 async fn run() -> anyhow::Result<()> {
-    let app = Router::new().route("/", get(|| async { "Hello, world!" }));
+    let app = Router::new()
+        .route("/", get(|| async { "Hello, world!" }))
+        .fallback(get(r#static::static_handler));
 
     axum::Server::bind(&"0.0.0.0:8000".parse().unwrap())
         .serve(app.into_make_service())

src/static.rs

@@ -0,0 +1,34 @@
+//! Static files embedded in the binary.
+
+use axum::{
+    http::{header, StatusCode, Uri},
+    response::IntoResponse,
+};
+use rust_embed::RustEmbed;
+
+#[derive(RustEmbed)]
+#[folder = "target/static"]
+pub struct StaticFiles;
+
+pub struct StaticFile<T>(T);
+
+impl<T> IntoResponse for StaticFile<T>
+where
+    T: AsRef<str>,
+{
+    fn into_response(self) -> axum::response::Response {
+        let path = self.0.as_ref();
+        match StaticFiles::get(path) {
+            Some(file) => {
+                let mime = mime_guess::from_path(path).first_or_octet_stream();
+                ([(header::CONTENT_TYPE, mime.as_ref())], file.data).into_response()
+            }
+            None => StatusCode::NOT_FOUND.into_response(),
+        }
+    }
+}
+
+pub async fn static_handler(uri: Uri) -> impl IntoResponse {
+    let path = uri.path().trim_start_matches('/').to_string();
+    StaticFile(path)
+}