fixed docker build static

Cargo.lock

@@ -3255,7 +3255,7 @@ dependencies = [
 
 [[package]]
 name = "web-petting"
-version = "0.1.6"
+version = "0.1.7"
 dependencies = [
  "chrono",
  "chrono-tz",

src/public.rs

@@ -395,32 +395,35 @@ async fn favicon(_request: Request) -> cot::Result<Response> {
 }
 
 async fn serve_static(_request: Request, Path(filename): Path<String>) -> cot::Result<Response> {
-    let safe_name = filename.replace(['/', '\\', '.', ' '], "");
-    // rebuild with original extension
-    let ext = filename.rsplit('.').next().unwrap_or("");
-    let _stem = filename.rsplit('.').last().unwrap_or("");
-    let _ = safe_name; // just for validation idea; use the path directly with whitelist
-    let path = format!("static/{}", filename);
-    match tokio::fs::read(&path).await {
-        Ok(data) => {
-            let content_type = match ext {
-                "png" => "image/png",
-                "jpg" | "jpeg" => "image/jpeg",
-                "webp" => "image/webp",
-                "svg" => "image/svg+xml",
-                "gif" => "image/gif",
-                _ => "application/octet-stream",
-            };
-            let body = cot::Body::fixed(data);
-            let mut resp = Response::new(body);
-            resp.headers_mut()
-                .insert("content-type", content_type.parse().unwrap());
-            resp.headers_mut()
-                .insert("cache-control", "public, max-age=604800".parse().unwrap());
-            Ok(resp)
-        }
-        Err(_) => Html::new("404").into_response(),
+    // Only allow simple filenames (no path traversal)
+    if filename.contains('/') || filename.contains('\\') || filename.contains("..") {
+        return Html::new("404").into_response();
     }
+    let ext = filename.rsplit('.').next().unwrap_or("");
+    // Try relative path first, then /data/static/ (Docker)
+    let path = format!("static/{filename}");
+    let data = match tokio::fs::read(&path).await {
+        Ok(d) => d,
+        Err(_) => match tokio::fs::read(format!("/data/static/{filename}")).await {
+            Ok(d) => d,
+            Err(_) => return Html::new("404").into_response(),
+        },
+    };
+    let content_type = match ext {
+        "png" => "image/png",
+        "jpg" | "jpeg" => "image/jpeg",
+        "webp" => "image/webp",
+        "svg" => "image/svg+xml",
+        "gif" => "image/gif",
+        _ => "application/octet-stream",
+    };
+    let body = cot::Body::fixed(data);
+    let mut resp = Response::new(body);
+    resp.headers_mut()
+        .insert("content-type", content_type.parse().unwrap());
+    resp.headers_mut()
+        .insert("cache-control", "public, max-age=604800".parse().unwrap());
+    Ok(resp)
 }
 
 async fn robots_txt(_request: Request, db: Database) -> cot::Result<Response> {