mirror of
https://github.com/windmill-labs/windmill.git
synced 2026-08-22 16:02:24 +00:00
Ruben Fiszel
114 lines
4.2 KiB
Rust
114 lines
4.2 KiB
Rust
/*
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* Author: Ruben Fiszel
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* Copyright: Windmill Labs, Inc 2022
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* This file and its contents are licensed under the AGPLv3 License.
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* Please see the included NOTICE for copyright information and
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* LICENSE-AGPL for a copy of the license.
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*/
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use axum::{body::Body, extract::OriginalUri, http::Response, response::IntoResponse};
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#[cfg(feature = "static_frontend")]
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use axum::http::header;
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#[cfg(feature = "static_frontend")]
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use http::HeaderValue;
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use hyper::Uri;
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#[cfg(feature = "static_frontend")]
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use mime_guess::mime;
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#[cfg(feature = "static_frontend")]
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use rust_embed::RustEmbed;
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// Content Security Policy configuration
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#[cfg(feature = "static_frontend")]
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lazy_static::lazy_static! {
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static ref CSP_POLICY: String = std::env::var("CSP_POLICY").unwrap_or_default();
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}
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// static_handler is a handler that serves static files from the
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pub async fn static_handler(OriginalUri(original_uri): OriginalUri) -> StaticFile {
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StaticFile(original_uri)
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}
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#[cfg(feature = "static_frontend")]
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#[derive(RustEmbed)]
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#[folder = "${FRONTEND_BUILD_DIR:-../../frontend/build/}"]
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struct Asset;
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pub struct StaticFile(Uri);
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impl IntoResponse for StaticFile {
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fn into_response(self) -> Response<Body> {
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let original_path = self.0.path();
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let path = original_path.trim_start_matches('/');
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serve_path(path, original_path)
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}
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}
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#[cfg(feature = "static_frontend")]
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const TWO_HUNDRED: &str = "200.html";
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/// Check if the original path requires cross-origin isolation headers
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/// These headers are needed for SharedArrayBuffer and TypeScript workers
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/// Only enabled for /apps_raw paths (raw app editor)
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#[cfg(feature = "static_frontend")]
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fn needs_cross_origin_isolation(original_path: &str) -> bool {
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original_path.starts_with("/apps_raw/") || original_path.starts_with("/ui_builder/")
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}
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fn serve_path(path: &str, original_path: &str) -> Response<Body> {
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if path.starts_with("api/") {
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return Response::builder().status(404).body(Body::empty()).unwrap();
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}
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#[cfg(feature = "static_frontend")]
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match Asset::get(path) {
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Some(content) => {
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let body = Body::from(content.data);
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let mime = mime_guess::from_path(path).first_or_octet_stream();
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let mut res = Response::builder()
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.header(header::CONTENT_TYPE, mime.as_ref())
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.header(header::ACCESS_CONTROL_ALLOW_ORIGIN, "*");
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// Add cross-origin isolation headers only for paths that need them
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// (apps_raw editor needs SharedArrayBuffer for TypeScript workers)
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if needs_cross_origin_isolation(original_path) {
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res = res
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.header("Cross-Origin-Opener-Policy", "same-origin")
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.header("Cross-Origin-Embedder-Policy", "require-corp")
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.header("Cross-Origin-Resource-Policy", "cross-origin");
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}
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// Add Content-Security-Policy header for static assets when policy is set
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if !CSP_POLICY.is_empty() {
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if let Ok(header_value) = HeaderValue::try_from(CSP_POLICY.as_str()) {
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res = res.header("Content-Security-Policy", header_value);
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}
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}
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if mime.as_ref() == mime::APPLICATION_JAVASCRIPT
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|| mime.as_ref() == mime::TEXT_JAVASCRIPT
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|| path.ends_with(".wasm")
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{
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res = res.header(header::CACHE_CONTROL, "max-age=31536000");
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} else if (mime.type_(), mime.subtype()) == (mime::TEXT, mime::CSS) {
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res = res.header(header::CACHE_CONTROL, "max-age=31536000");
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} else if (mime.type_()) == (mime::IMAGE) || (mime.type_()) == (mime::FONT) {
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res = res.header(header::CACHE_CONTROL, "max-age=31536000");
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} else {
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res = res.header(header::CACHE_CONTROL, "no-cache, no-store, must-revalidate");
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}
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res.body(body).unwrap()
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}
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None if path.starts_with("_app/") => {
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Response::builder().status(404).body(Body::empty()).unwrap()
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}
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None => serve_path(TWO_HUNDRED, original_path),
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}
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#[cfg(not(feature = "static_frontend"))]
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{
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let _ = original_path; // suppress unused warning
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Response::builder().status(404).body(Body::empty()).unwrap()
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}
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}
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