static handler: guess content type

Cargo.lock

@@ -1184,6 +1184,7 @@ dependencies = [
  "include_dir",
  "lazy_static",
  "lettre",
+ "new_mime_guess",
  "rand",
  "reqwest 0.12.9",
  "serde",
@@ -2008,6 +2009,16 @@ dependencies = [
  "tempfile",
 ]
 
+[[package]]
+name = "new_mime_guess"
+version = "4.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02a2dfb3559d53e90b709376af1c379462f7fb3085a0177deb73e6ea0d99eff4"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
 [[package]]
 name = "nom"
 version = "7.1.3"

Cargo.toml

@@ -23,6 +23,7 @@ lettre = { version = "0.11", features = ["builder", "smtp-transport", "rustls-tl
 include_dir = "0.7"
 aws-config = { version = "1.1.7", features = ["behavior-version-latest"] }
 aws-sdk-s3 = "1.66.0"
+new_mime_guess = "4"
 
 [profile.profiling]
 inherits = "dev"

src/main.rs

@@ -443,9 +443,12 @@ async fn get_static_(
 ) -> impl IntoResponse {
     eprintln!("GET {}", uri);
 
-    match STATIC_DIR.get_file(filename) {
+    match STATIC_DIR.get_file(&filename) {
         None => (StatusCode::NOT_FOUND, "404 Not found").into_response(),
-        Some(page) => page.contents().into_response(),
+        Some(page) => {
+            let mime = new_mime_guess::from_path(&filename).first_or_octet_stream();
+            ([(header::CONTENT_TYPE, mime.to_string())], page.contents()).into_response()
+        },
     }
 }